Dr. Drobyski primarily studies graft-versus-host disease (GVHD), a serious complication that can arise after patients receive stem cell transplants. He investigates various approaches and treatments to prevent or mitigate GVHD, including medications like tildrakizumab and tocilizumab. Additionally, his research delves into the role of specific molecules and immune cells, such as IL-34 and cannabinoid receptors, in influencing the severity of GVHD and related complications, particularly in the gastrointestinal tract and brain. His findings aim to enhance the quality of life and outcomes for patients undergoing this critical treatment.
Key findings
In a study on tildrakizumab, only 14% of patients experienced severe acute GVHD, but 52.7% developed chronic GVHD within a year.
Research on IL-34 showed that it significantly reduced GVHD-related death and inflammation in mice, highlighting its protective role against gastrointestinal tract GVHD.
Patients treated with posttransplant cyclophosphamide had a 24% rate of any chronic GVHD compared to 40% for those receiving traditional treatments.
Tocilizumab was found to increase depression scores by an average of 8.6 points among patients post-transplant, indicating a potential negative side effect.
Elimination of Kras from T cells resulted in an 80% survival rate in mice with acute GVHD, demonstrating a promising strategy to reduce complications while retaining anti-cancer effects.
Frequently asked questions
Does Dr. Drobyski study graft-versus-host disease?
Yes, he specifically researches various aspects of graft-versus-host disease, especially in the context of stem cell transplantation.
What treatments has Dr. Drobyski researched for GVHD?
He has studied several treatments, including tildrakizumab, tocilizumab, and posttransplant cyclophosphamide, aiming to improve outcomes for patients.
Is Dr. Drobyski's work relevant to patients undergoing stem cell transplants?
Absolutely, his research is directly focused on improving the management and prevention of complications like GVHD in stem cell transplant patients.
Can Dr. Drobyski's research help with gastrointestinal issues after transplants?
Yes, his studies have identified ways to reduce gastrointestinal tract GVHD, which is a common complication for transplant patients.
What impact does tocilizumab have on patients according to Dr. Drobyski's research?
His findings indicate that tocilizumab may worsen depression levels in patients undergoing stem cell transplants.
Publications in plain English
TIDRAKIZUMAB FOR THE PROPHYLAXIS OF GRAFT VERSUS HOST DISEASE AFTER ALLOGENEIC HEMATOPOIETIC STEM CELL TRANSPLANTATION.
2026
Blood advances
Runaas L, Fank S, Palen K, Szabo A, Rein L +15 more
Plain English In this study, researchers analyzed the use of tildrakizumab, a medication given alongside standard treatments, to prevent graft versus host disease (GVHD) in 50 patients who received stem cell transplants. They found that the rates of severe acute GVHD were low, with only 14% of patients experiencing grades II-IV and just 4% having the more severe grades III-IV within the first 100 days. However, over half (52.7%) of the patients developed chronic GVHD requiring further treatment within a year, showing that while tildrakizumab is effective at preventing acute GVHD, it does not completely prevent chronic cases.
Who this helps: This information benefits patients undergoing stem cell transplants and their doctors by providing options for managing GVHD.
Rayasam A, Moe A, Kudek M, Shah RK, Yuan CY +7 more
Plain English This study looked at a problematic condition called graft-versus-host disease (GVHD) that affects the gastrointestinal (GI) tract after stem cell transplants. Researchers found that a substance called IL-34, produced by the cells lining the intestines, helps reduce the severity of GVHD. Without IL-34, patients experienced more severe symptoms and higher rates of death; however, giving IL-34 to mice led to a significant decrease in GVHD-related death and inflammation.
Who this helps: This research could benefit patients undergoing stem cell transplants who are at risk for GI tract GVHD.
Severity and organ distribution of chronic graft-versus-host disease with posttransplant cyclophosphamide-based versus methotrexate/calcineurin inhibitor-based allogeneic hematopoietic cell transplantation.
2024
Bone marrow transplantation
Chhabra S, Jerkins JH, Monahan K, Szabo A, Shah NN +12 more
Plain English This study looked at two different treatments after stem cell transplants to see how they affect a complication called chronic graft-versus-host disease (GVHD). It found that patients receiving a treatment with posttransplant cyclophosphamide (ptCy) had a lower chance of developing chronic GVHD compared to those getting a traditional treatment with calcineurin inhibitors; specifically, 24% of ptCy patients had any chronic GVHD versus 40% in the other group, and moderate to severe cases were 12% compared to 23%. This research is important because it shows that using ptCy can help reduce the severity and spread of chronic GVHD, which can lead to better patient outcomes and quality of life.
Who this helps: This helps patients undergoing stem cell transplants by possibly reducing their risk of chronic GVHD.
Type 2 cannabinoid receptor expression on microglial cells regulates neuroinflammation during graft-versus-host disease.
2024
The Journal of clinical investigation
Moe A, Rayasam A, Sauber G, Shah RK, Doherty A +9 more
Plain English This study explored how a specific receptor in the brain affects inflammation during graft-versus-host disease (GVHD), a complication that can occur after stem cell transplants. Researchers found that activating the type 2 cannabinoid receptor (CB2R) in brain cells leads to increased inflammation and cell death in the brain. They showed that using a drug that targets this receptor reduced inflammation without worsening the GVHD itself.
Who this helps: Patients undergoing stem cell transplants and their healthcare providers.
Mitigation of gastrointestinal graft--host disease with tocilizumab prophylaxis is accompanied by preservation of microbial diversity and attenuation of enterococcal domination.
2023
Haematologica
Chhabra S, Szabo A, Clurman A, McShane K, Waters N +14 more
MICROGLIAL CELL EXPRESSION OF THE TYPE 2 CANNABINOID RECEPTOR REGULATES IMMUNE-MEDIATED NEUROINFLAMMATION.
2023
bioRxiv : the preprint server for biology
Moe A, Rayasam A, Sauber G, Shah RK, Yuan CY +8 more
Plain English This study looked at how a specific receptor in brain immune cells, called the type 2 cannabinoid receptor (CB2R), affects inflammation in the brain after graft-versus-host disease (GVHD), a common complication after stem cell transplants. The researchers found that activating this receptor increased inflammation and led to more damage in brain cells, while blocking it reduced inflammation without making GVHD worse. This is important because it points to a new way to help reduce brain-related side effects for patients receiving certain cancer treatments.
Who this helps: This benefits patients undergoing stem cell transplants and those receiving T cell-based cancer therapies.
Interleukin-9 production by type 2 innate lymphoid cells induces Paneth cell metaplasia and small intestinal remodeling.
2023
Nature communications
Yuan C, Rayasam A, Moe A, Hayward M, Wells C +4 more
Plain English This study looked at how a type of cancer in mice affects the gut. It found that chronic myelogenous leukemia (CML) leads to inflammation in the gastrointestinal tract, triggering the production of a molecule called IL-9 from immune cells. This process results in changes to important gut cells, specifically increasing their numbers, which can affect overall gut health.
Who this helps: This research is valuable for patients with gastrointestinal diseases related to cancer, as well as for doctors treating them.
Single-cell immune profiling reveals a developmentally distinct CD4+ GM-CSF+ T-cell lineage that induces GI tract GVHD.
2022
Blood advances
Piper C, Hainstock E, Yin-Yuan C, Chen Y, Khatun A +6 more
Plain English This study focused on a specific type of immune cell, CD4+ GM-CSF+ T cells, and how they contribute to gastrointestinal (GI) tract damage during graft-versus-host disease (GVHD). The researchers found two distinct populations of these T cells, one of which was especially harmful to the GI tract and depended on a specific receptor for signaling. Understanding these differences is important because it can help develop targeted treatments to reduce GI damage in patients experiencing GVHD.
Who this helps: Patients undergoing treatment for conditions that might lead to GVHD.
The effect of tocilizumab on patient reported outcomes and inflammatory biomarkers in hematopoietic cell transplantation.
2022
Brain, behavior, & immunity - health
Taylor MR, Hillard CJ, Drobyski WR, Szabo A, Johnson BD +4 more
Plain English This study looked at how tocilizumab, a medication that targets inflammation, affects the emotional and physical well-being of patients who received stem cell transplants. Researchers found that after treatment, both the tocilizumab group and a comparison group showed increased depression levels, with tocilizumab patients reporting an average increase of 8.6 points in depression scores and significant changes in some inflammatory markers. The findings suggest that tocilizumab did not improve emotional symptoms as hoped, highlighting the need for more research in this area.
Who this helps: This helps patients undergoing hematopoietic cell transplantation and their healthcare providers.
Corrigendum to 'Ixazomib for chronic Graft-Versus-Host Disease prophylaxis following allogeneic hematopoietic cell transplantation' [Biology of Blood and Marrow Transplantation 26/10 (2020) 1876-1885].
2022
Transplantation and cellular therapy
Chhabra S, Visotcky A, Pasquini MC, Zhu F, Tang X +16 more
Signaling through the type 2 cannabinoid receptor regulates the severity of acute and chronic graft-versus-host disease.
2021
Blood
Yuan CY, Zhou V, Sauber G, Stollenwerk T, Komorowski R +5 more
Plain English This study looked at how a specific receptor (CB2R) on immune cells affects the severity of graft-versus-host disease (GVHD), which can occur after a transplant. Researchers found that when this receptor was absent on certain immune cells, it led to increased lethality from acute GVHD, as the harmful T cells grew more active. They discovered that the compound THC reduced the severity of acute GVHD, while another compound, JWH-133, was effective for a chronic form of the disease.
Who this helps: This helps patients who have undergone transplants and are at risk of developing GVHD.
The IL-6 antagonist tocilizumab is associated with worse depression and related symptoms in the medically ill.
2021
Translational psychiatry
Knight JM, Costanzo ES, Singh S, Yin Z, Szabo A +9 more
Plain English This study looked at how the drug tocilizumab, which blocks a specific inflammation pathway, affects depression in patients undergoing stem cell transplants. Researchers found that patients who received tocilizumab reported significantly higher depression scores 28 days after the transplant compared to those who did not receive the drug, with an increase of 5.74 points on a depression scale. This matters because it shows that instead of helping reduce depression, tocilizumab may actually worsen it for these patients.
Who this helps: This helps healthcare providers understand the potential negative effects of tocilizumab on mental health in stem cell transplant patients.
Toll-like receptor-9 stimulated plasmacytoid dendritic cell precursors suppress autoimmune neuroinflammation in a murine model of multiple sclerosis.
2021
Scientific reports
Letscher H, Agbogan VA, Korniotis S, Gastineau P, Tejerina E +5 more
Plain English This study looked at a type of immune cell called plasmacytoid dendritic cell (pDC) precursors and how they can help reduce inflammation in a mouse model of multiple sclerosis, a condition where the immune system attacks the nervous system. Researchers found that when they stimulated these cells in the bone marrow using a specific method, the pDC precursors were able to migrate to the inflamed areas in the spine and produce protective substances that helped prevent and slow down the disease. This research is important because it shows a potential new way to treat autoimmune diseases by using specially activated immune cells to improve patient outcomes.
Who this helps: This helps patients with autoimmune diseases, especially those with multiple sclerosis.
Self-Renewing Islet TCF1CD8 T Cells Undergo IL-27-Controlled Differentiation to Become TCF1Terminal Effectors during the Progression of Type 1 Diabetes.
2021
Journal of immunology (Baltimore, Md. : 1950)
Ciecko AE, Schauder DM, Foda B, Petrova G, Kasmani MY +5 more
Plain English This study looked at how specific T cells that attack insulin-producing cells behave during the progression of type 1 diabetes. Researchers found two types of these T cells in mice that could lead to diabetes: one type (CD44TCF1CXCR6) was better at causing disease than the other (CD44TCF1CXCR6). They also discovered that a molecule called IL-27 helps these cells mature into more aggressive forms, which is important because understanding this process can reveal targets for new diabetes treatments.
Who this helps: This research benefits patients with type 1 diabetes and the doctors treating them.
Translational Clinical Strategies for the Prevention of Gastrointestinal Tract GraftHost Disease.
2021
Frontiers in immunology
Rayasam A, Drobyski WR
Plain English This study looked at graft versus host disease (GVHD), a serious condition that affects about half of patients receiving stem cell transplants. Researchers found that the gastrointestinal (GI) tract is especially vulnerable in these patients, leading to severe complications and increased risk of death. They reviewed various methods tested in animals to prevent GI tract GVHD, including therapies that reduce inflammation and block harmful immune cell activity.
Who this helps: This helps patients undergoing stem cell transplants and their doctors.
Pathogenic Bhlhe40+ GM-CSF+ CD4+ T cells promote indirect alloantigen presentation in the GI tract during GVHD.
2020
Blood
Piper C, Zhou V, Komorowski R, Szabo A, Vincent B +5 more
Plain English This study looked at a specific type of immune cell involved in the gastrointestinal tract during a condition called acute graft-versus-host disease (GVHD), which can cause serious health problems. The researchers found that a protein called GM-CSF, driven by another factor named Bhlhe40, plays a crucial role in causing inflammation and damage in the GI tract during GVHD. They observed that this pathway increases harmful immune responses in the colon, suggesting that targeting GM-CSF could help treat this condition.
Who this helps: This benefits patients suffering from GVHD, particularly those with GI complications.
Fludarabine/Busulfan Conditioning-Based Allogeneic Hematopoietic Cell Transplantation for Myelofibrosis: Role of Ruxolitinib in Improving Survival Outcomes.
2020
Biology of blood and marrow transplantation : journal of the American Society for Blood and Marrow Transplantation
Chhabra S, Narra RK, Wu R, Szabo A, George G +13 more
Plain English This study looked at the results of a specific type of stem cell transplant, called allogeneic hematopoietic cell transplantation (allo-HCT), for patients with primary myelofibrosis (MF). Researchers found that after the transplant, 81.1% of patients survived for at least three years, and 78.4% had no relapse of the disease. These findings are promising, especially since many patients are older and have other health issues that make treatment difficult.
Who this helps: This benefits patients with myelofibrosis and their doctors by providing insights into effective treatment options.
Ixazomib for Chronic Graft-versus-Host Disease Prophylaxis following Allogeneic Hematopoietic Cell Transplantation.
2020
Biology of blood and marrow transplantation : journal of the American Society for Blood and Marrow Transplantation
Chhabra S, Visotcky A, Pasquini MC, Zhu F, Tang X +16 more
Plain English This study looked at how effective and safe ixazomib, a new oral drug, is at preventing chronic graft-versus-host disease (cGVHD) in patients who received a stem cell transplant from either a related or unrelated donor. The trial involved 57 patients and found that about 36% of patients with related donors and 39% with unrelated donors developed cGVHD within a year, showing that while ixazomib was safe to use, it did not significantly reduce cGVHD rates compared to other patients who had not taken the drug. This matters because cGVHD can lead to serious health problems after transplant, so finding effective preventive measures is crucial.
Who this helps: This helps patients undergoing stem cell transplants by evaluating new treatment options for cGVHD prevention.
Development of High-Specificity Fluorescent Probes to Enable Cannabinoid Type 2 Receptor Studies in Living Cells.
2020
Journal of the American Chemical Society
Sarott RC, Westphal MV, Pfaff P, Korn C, Sykes DA +52 more
Plain English This study focused on creating new tools called fluorescent probes that specifically target a receptor known as the cannabinoid type 2 receptor (CBR). Researchers developed these probes to study CBR more effectively in living cells, showing that they are highly specific and can be used in various cell types, including human and mouse immune cells. This matters because understanding how CBR works could lead to better treatments for conditions like inflammation, pain, and cancer.
Who this helps: This helps researchers and doctors working on new treatments for inflammatory diseases, autoimmune disorders, and cancer.
Kras-Deficient T Cells Attenuate Graft-versus-Host Disease but Retain Graft-versus-Leukemia Activity.
2020
Journal of immunology (Baltimore, Md. : 1950)
Luo L, Chen Y, Chen X, Zheng Y, Zhou V +12 more
Plain English Researchers studied the role of a gene called Kras in T cells that can cause complications after transplant surgery, specifically acute graft-versus-host disease (aGVHD), which can make it hard for patients to recover. They found that when Kras was removed from T cells in mice, the severity and death rate from aGVHD dropped significantly, showing a notable improvement where 80% of those with Kras-deficient T cells survived compared to much lower survival rates in typical cases. Importantly, these altered T cells still effectively fought cancer, meaning it’s possible to reduce harmful effects while keeping treatment benefits.
Who this helps: This helps transplant patients by reducing aGVHD complications while preserving the anti-cancer effects of their treatment.
Tocilizumab for the treatment of severe steroid-refractory acute graft-versus-host disease of the lower gastrointestinal tract.
2019
Bone marrow transplantation
Ganetsky A, Frey NV, Hexner EO, Loren AW, Gill SI +10 more
Plain English This study looked at how effective tocilizumab, a medication, is in treating severe cases of a condition called acute graft-versus-host disease (GVHD) that affects the lower gastrointestinal tract and doesn't respond to steroids. Out of 16 patients treated, 10 (or 62.5%) saw their symptoms completely go away after an average of 11 days. This is important because GVHD can be very serious and finding effective treatments can significantly improve survival chances for patients after a stem cell transplant.
Who this helps: This helps patients recovering from stem cell transplants experiencing severe GVHD.
Impact of Obesity on Clinical Outcomes of Elderly Patients Undergoing Allogeneic Hematopoietic Cell Transplantation for Myeloid Malignancies.
2019
Biology of blood and marrow transplantation : journal of the American Society for Blood and Marrow Transplantation
Voshtina E, Szabo A, Hamadani M, Fenske TS, D'Souza A +5 more
Plain English This study looked at older patients (60 and up) who had allogeneic hematopoietic cell transplantation (allo-HCT) for blood cancers and how obesity affected their recovery and survival. Researchers compared 86 non-obese patients (with a BMI under 30) to obese patients (with a BMI of 30 or higher) and found that while the average overall survival was 36 months for the non-obese group and 24 months for the obese group, both groups had similar outcomes in terms of disease progression and the severity of complications. Importantly, being obese didn't hinder the success of the treatment, even though obese patients had a higher chance of being readmitted within 30 days after discharge.
Who this helps: This research benefits elderly patients with blood cancers, as it supports their eligibility for potentially life-saving treatment regardless of obesity.
Outcomes of Reduced-Intensity Conditioning Allogeneic Hematopoietic Cell Transplantation Performed in the Inpatient versus Outpatient Setting.
2019
Biology of blood and marrow transplantation : journal of the American Society for Blood and Marrow Transplantation
Guru Murthy GS, Hari PN, Szabo A, Pasquini M, Narra R +13 more
Plain English This study looked at whether performing a specific type of stem cell transplant (called reduced-intensity conditioning allogeneic hematopoietic cell transplantation) in an outpatient setting instead of the hospital could be effective and safe. They found that while the outpatient group had a lower rate of serious complications like infections and mouth sores, their survival rates and cancer relapse rates were similar to those of patients in the hospital (82.8% overall survival for outpatient vs 73.8% for inpatient). Additionally, outpatient treatment was significantly less expensive, costing around $247,334 compared to $339,621 for inpatient care.
Who this helps: This benefits patients undergoing stem cell transplants, particularly those who may prefer outpatient treatment options.
The impact of the graft-versus-leukemia effect on survival in acute lymphoblastic leukemia.
2019
Blood advances
Yeshurun M, Weisdorf D, Rowe JM, Tallman MS, Zhang MJ +36 more
Plain English This study looked at how the immune response from a stem cell transplant affects survival in patients with acute lymphoblastic leukemia (ALL). Researchers analyzed data from over 5,200 patients and found that those who developed mild or moderate forms of graft-versus-host disease (GVHD) had a lower chance of the leukemia returning and, in some cases, better long-term survival. Specifically, adults and children in early remission who experienced mild GVHD had a 24% lower likelihood of dying compared to those without GVHD.
Who this helps: This research helps patients with acute lymphoblastic leukemia and their doctors in making treatment decisions after a stem cell transplant.
Inflammatory Cytokine Networks in Gastrointestinal Tract Graft vs. Host Disease.
2019
Frontiers in immunology
Piper C, Drobyski WR
Plain English This study looked at how inflammatory proteins in the body contribute to gastrointestinal problems that arise after stem cell transplants. Researchers found that certain proteins, like IL-6 and IL-23, are key players in causing damage to the gut, leading to serious health issues. Understanding these pathways matters because it can help develop better treatments to reduce sickness and death related to this condition.
Who this helps: This helps patients undergoing stem cell transplants and their doctors.
Tocilizumab, tacrolimus and methotrexate for the prevention of acute graft--host disease: low incidence of lower gastrointestinal tract disease.
2018
Haematologica
Drobyski WR, Szabo A, Zhu F, Keever-Taylor C, Hebert KM +14 more
Plain English This study looked at how well tocilizumab works alongside standard treatments tacrolimus and methotrexate to prevent a serious complication called graft-versus-host disease (GVHD) in patients who received stem cell transplants. Out of 35 patients aged 22 to 76, only 14% experienced moderate to severe GVHD after 100 days, and there were no cases of lower gastrointestinal issues in that same period. This combination treatment not only reduced the occurrence of GVHD but also improved patient survival rates without compromising the recovery of the immune system.
Who this helps: This helps patients undergoing stem cell transplants and their healthcare providers.
Loss of FFAR2 promotes colon cancer by epigenetic dysregulation of inflammation suppressors.
2018
International journal of cancer
Pan P, Oshima K, Huang YW, Agle KA, Drobyski WR +5 more
Plain English This study looked at how a receptor called FFAR2, which is activated by gut bacteria, affects colon cancer. Researchers found that mice lacking FFAR2 developed more colon tumors; specifically, those with FFAR2 deficiency experienced an increase in tumor formation from adenoma to cancer. This matters because it highlights FFAR2's role in preventing colon cancer through regulation of inflammation, suggesting that targeting this pathway could be a way to lower cancer risk.
Who this helps: This research helps patients at risk for colon cancer by providing insights for potential new treatments.
Use of propylene glycol-free melphalan conditioning in light-chain amyloidosis patients undergoing autologous hematopoietic cell transplantation is well tolerated and effective.
2018
Bone marrow transplantation
Badar T, Hari P, Chhabra S, Dhakal B, Drobyski WR +7 more
Peripheral Blood Grafts for T Cell-Replete Haploidentical Transplantation Increase the Incidence and Severity of Cytokine Release Syndrome.
2018
Biology of blood and marrow transplantation : journal of the American Society for Blood and Marrow Transplantation
Raj RV, Hamadani M, Szabo A, Pasquini MC, Shah NN +12 more
Plain English This research studied patients undergoing haploidentical stem cell transplants to see how often they developed a condition called cytokine release syndrome (CRS) and how severe it was. Out of 66 patients treated, 48 experienced CRS, and those receiving peripheral blood grafts were more likely to have severe CRS compared to those who received bone marrow grafts. However, having severe CRS did not seem to impact overall survival rates or other serious complications after the transplant.
Who this helps: This information benefits patients and doctors involved in haploidentical stem cell transplants.
A model of TH17-associated ileal hyperplasia that requires both IL-17A and IFNγ to generate self-tolerance and prevent colitis.
2018
Mucosal immunology
Jeschke JC, Mayne CG, Ziegelbauer J, DeCiantis CL, Singh S +6 more
Plain English This study looked at how immune responses in the ileum (part of the intestine) affect Crohn's disease, specifically by examining genetically modified mice. Researchers found that young mice developed an abnormal increase in certain immune cells, which led to serious gut inflammation (colitis) in about 50% of the cases. They discovered that two proteins, IL-17A and IFNγ, are important for protecting against this inflammation by promoting a balance of immune cells.
Who this helps: This research benefits patients with Crohn's disease and helps doctors understand mechanisms behind their condition.
Bim regulates the survival and suppressive capability of CD8FOXP3regulatory T cells during murine GVHD.
2018
Blood
Agle K, Vincent BG, Piper C, Belle L, Zhou V +3 more
Plain English Researchers studied a specific type of immune cell called CD8Foxp3 regulatory T cells (Tregs) in a model of graft-versus-host disease (GVHD) to see how effectively they can control the disease compared to another type of Treg (CD4Tregs). They found that CD8Tregs were less effective at suppressing GVHD, partly because they had a higher expression of a protein called Bim, which led to their quicker death. Importantly, when they modified CD8Tregs to reduce Bim, these cells survived longer and were more effective in reducing GVHD severity.
Who this helps: This research helps patients undergoing organ transplants and those affected by GVHD.
Single-cell RNA sequencing unveils an IL-10-producing helper subset that sustains humoral immunity during persistent infection.
2018
Nature communications
Xin G, Zander R, Schauder DM, Chen Y, Weinstein JS +4 more
Plain English This study examined how certain immune cells, specifically CD4 T-cells, change during long-lasting viral infections. Researchers found a group of these cells that produce two important substances, IL-10 and IL-21, which help maintain antibody responses against the virus. When these cells were removed, the body's ability to fight the virus weakened significantly, highlighting their crucial role in managing ongoing infections.
Who this helps: This benefits patients with chronic viral infections by improving understanding of how the immune system can be enhanced.
Host interleukin 6 production regulates inflammation but not tryptophan metabolism in the brain during murine GVHD.
2017
JCI insight
Belle L, Zhou V, Stuhr KL, Beatka M, Siebers EM +6 more
Plain English This study looked at how a condition called graft-versus-host disease (GVHD), which occurs after a stem cell transplant, affects inflammation and brain function in mice. Researchers found that a protein called IL-6 played a key role in driving inflammation in the brain, leading to behavioral issues, while trying to change the metabolism of a brain chemical called tryptophan did not improve these problems. This matters because it shows that while targeting IL-6 can help reduce inflammation and some related symptoms, it doesn't fix all the metabolic disruptions in the brain caused by GVHD.
Who this helps: This helps patients with GVHD and doctors treating them.
Etanercept and Corticosteroid Therapy for the Treatment of Late-Onset Idiopathic Pneumonia Syndrome.
2017
Biology of blood and marrow transplantation : journal of the American Society for Blood and Marrow Transplantation
Thompson J, Yin Z, D'Souza A, Fenske T, Hamadani M +9 more
Plain English This study looked at the effectiveness of two treatments, etanercept and corticosteroids, for patients who developed late-onset idiopathic pneumonia syndrome (IPS) after a stem cell transplant. Out of 23 patients treated, 10 (43%) fully recovered, and those who responded had a much better chance of survival, with 67% alive two years later, while those who didn't respond had a median survival of only 13 days. This matters because it highlights that early treatment can significantly improve survival outcomes for patients with this serious condition.
Who this helps: This helps patients recovering from stem cell transplants and their doctors.
DAS181 Treatment of Severe Parainfluenza Virus 3 Pneumonia in Allogeneic Hematopoietic Stem Cell Transplant Recipients Requiring Mechanical Ventilation.
2016
Case reports in medicine
Dhakal B, D'Souza A, Pasquini M, Saber W, Fenske TS +4 more
Plain English This study looked at the use of a new treatment called DAS181 for patients with severe pneumonia caused by the parainfluenza virus after they received stem cell transplants. The researchers treated two patients who were on mechanical ventilation, and the treatment was aimed at improving their respiratory issues. This matters because there are currently no effective therapies for this serious condition, and finding new options could save lives.
Who this helps: This helps patients recovering from stem cell transplants who develop serious viral pneumonia.
Allogeneic Hematopoietic Cell Transplantation in Multiple Myeloma: Impact of Disease Risk and Post Allograft Minimal Residual Disease on Survival.
2016
Clinical lymphoma, myeloma & leukemia
Dhakal B, D'Souza A, Martens M, Kapke J, Harrington AM +6 more
Plain English This study looked at how well a specific treatment, called allogeneic hematopoietic cell transplantation (allo-HCT), works for patients with multiple myeloma (MM). Researchers studied 77 patients, finding that younger patients and those in complete remission before the transplant tended to do better. They discovered that older age, not being in complete remission at the time of transplant, and reactivation of a virus called cytomegalovirus increased the risk of death after the procedure.
Who this helps: This research benefits patients with multiple myeloma, especially younger ones and those achieving complete remission before their transplant.
Blockade of interleukin-27 signaling reduces GVHD in mice by augmenting Treg reconstitution and stabilizing Foxp3 expression.
2016
Blood
Belle L, Agle K, Zhou V, Yin-Yuan C, Komorowski R +10 more
Plain English This study looked at how blocking a specific immune signaling pathway (called IL-27) can reduce the severity of graft-versus-host disease (GVHD) in mice. The researchers found that this blockade significantly boosted the number of important immune cells called regulatory T cells, which help prevent GVHD, and was more effective than blocking another pathway (IL-6). This research matters because it offers a potentially easier and more cost-effective way to manage GVHD without needing complex laboratory procedures.
Who this helps: Patients undergoing organ transplants who are at risk of developing GVHD.
Effects of Donor Vitamin A Deficiency and Pharmacologic Modulation of Donor T Cell Retinoic Acid Pathway on the Severity of Experimental Graft-versus-Host Disease.
2016
Biology of blood and marrow transplantation : journal of the American Society for Blood and Marrow Transplantation
Dodge J, Stephans A, Lai J, Drobyski WR, Chen X
Plain English This study looked at how vitamin A levels in stem cell donors affect a serious condition called graft-versus-host disease (GVHD), which can occur after stem cell transplants. Researchers found that when donor mice were vitamin A deficient, there was a 40% reduction in certain immune cells called CD4 T cells, which leads to a lower risk and severity of GVHD. This is important because it suggests that managing vitamin A levels in donors could help prevent GVHD, improving outcomes for transplant patients.
Who this helps: This research benefits patients undergoing stem cell transplants.
A colitogenic memory CD4+ T cell population mediates gastrointestinal graft-versus-host disease.
2016
The Journal of clinical investigation
Zhou V, Agle K, Chen X, Beres A, Komorowski R +16 more
Plain English Researchers studied a specific type of immune cell called CD4+ T cells that can cause severe inflammation in the intestines during graft-versus-host disease (GVHD), a serious condition that can occur after organ transplants. They found that these unique CD4+ T cells are marked by a protein and can lead to increased inflammation, damage to the colon, and even higher death rates in models of GVHD. Specifically, these cells were responsible for producing harmful inflammatory signals, and their impact was intensified when another receptor called IL-23 was also present.
Who this helps: This benefits patients undergoing organ transplants by improving understanding of GVHD-related complications.
Increasing incidence of chronic graft-versus-host disease in allogeneic transplantation: a report from the Center for International Blood and Marrow Transplant Research.
2015
Biology of blood and marrow transplantation : journal of the American Society for Blood and Marrow Transplantation
Arai S, Arora M, Wang T, Spellman SR, He W +58 more
Plain English This study looked at how chronic graft-versus-host disease (cGVHD), a serious condition that can happen after blood and marrow transplants, has changed over time. Researchers analyzed data from over 26,000 patients and found that the number of people developing cGVHD has increased by 19% in recent years. While the risk of dying from reasons other than relapse has decreased, it shows that cGVHD is still a significant issue that needs more attention in future research.
Who this helps: This information is valuable for patients undergoing transplants, doctors treating them, and researchers studying transplant-related complications.
Plain English This study compared the safety and effectiveness of performing autologous hematopoietic cell transplantation (Auto-HCT) for multiple myeloma and lymphoma patients as outpatients versus inpatients. The findings showed that outpatient patients recovered faster, needing just 10 days for neutrophils to return to normal, compared to 11 days for inpatients. Outpatient patients had a one-year survival rate of 97%, which is comparable to 91% for inpatients, and half of the outpatient patients did not need to stay overnight in the hospital at all, indicating that this setup can be safe and beneficial.
Who this helps: This research benefits cancer patients undergoing treatment for myeloma and lymphoma, as well as their healthcare providers.
Bortezomib-based induction for transplant ineligible AL amyloidosis and feasibility of later transplantation.
2015
Bone marrow transplantation
Cornell RF, Zhong X, Arce-Lara C, Atallah E, Blust L +6 more
Plain English This research looked at how effective bortezomib-based treatments are for patients with AL amyloidosis who were initially considered ineligible for a stem cell transplant. Out of 28 patients treated, 93% had a positive response to these therapies, and 33% of them became eligible for transplant after treatment. Importantly, 88% of those who went on to have a transplant maintained their positive response about 33 months later, showcasing that this approach can significantly improve outcomes for these patients.
Who this helps: Patients with AL amyloidosis who are initially deemed ineligible for stem cell transplants.
Engraftment Syndrome after Autologous Stem Cell Transplantation: An Update Unifying the Definition and Management Approach.
2015
Biology of blood and marrow transplantation : journal of the American Society for Blood and Marrow Transplantation
Cornell RF, Hari P, Drobyski WR
Plain English This study looked at a condition called engraftment syndrome (ES) that can occur after patients receive stem cell transplants. The researchers found that ES can cause a range of symptoms, including fever, skin rashes, diarrhea, and problems with the liver and kidneys. Understanding ES better helps doctors manage it more effectively, improving patient care after transplants.
Who this helps: This benefits patients undergoing autologous stem cell transplantation.
Ph+ ALL patients in first complete remission have similar survival after reduced intensity and myeloablative allogeneic transplantation: impact of tyrosine kinase inhibitor and minimal residual disease.
2014
Leukemia
Bachanova V, Marks DI, Zhang MJ, Wang H, de Lima M +30 more
Plain English This study looked at the outcomes of two types of stem cell transplants for adults with Philly chromosome positive (Ph+) acute lymphoblastic leukemia (ALL) who were in their first complete remission. Among 197 patients, those receiving reduced intensity conditioning (RIC) had a lower risk of dying from transplant-related complications (13%) compared to those receiving more intense myeloablative conditioning (MAC) (36%), but the chance of disease relapse was higher in the RIC group (49% vs. 28% for MAC). Additionally, patients who received a specific treatment before their transplant and had no detectable disease had better overall survival with RIC (55%) than those who had MAC (33%).
Who this helps: This research benefits patients with Ph+ ALL by offering them insight into effective treatment options.
Hematopoietic cell transplant comorbidity index is predictive of survival after autologous hematopoietic cell transplantation in multiple myeloma.
2014
Biology of blood and marrow transplantation : journal of the American Society for Blood and Marrow Transplantation
Saad A, Mahindra A, Zhang MJ, Zhong X, Costa LJ +20 more
Plain English This study looked at how the Hematopoietic Cell Transplant Comorbidity Index (HCT-CI) impacts survival rates after autologous hematopoietic cell transplantation (AHCT) in patients with multiple myeloma. They examined data from 1,156 patients and found that while the one-year risk of nonrelapse mortality was low at just 2%, those with a higher HCT-CI score had a significantly lower overall survival; specifically, a score of 1 to 2 increased the risk of death by 37%, and a score above 2 raised it by 50%. Understanding how comorbidities affect survival helps doctors better evaluate patient risks and tailor treatment plans.
Who this helps: This findings benefit patients and doctors determining treatment strategies for those with multiple myeloma.
Divergent effects of novel immunomodulatory agents and cyclophosphamide on the risk of engraftment syndrome after autologous peripheral blood stem cell transplantation for multiple myeloma.
2013
Biology of blood and marrow transplantation : journal of the American Society for Blood and Marrow Transplantation
Cornell RF, Hari P, Zhang MJ, Zhong X, Thompson J +9 more
Plain English This study looked at engraftment syndrome (ES), a serious condition that can happen after stem cell transplants in patients with multiple myeloma. They found that patients over 60 years old and those treated for multiple myeloma have a higher risk of developing ES, with those over 60 having a risk 1.71 times greater and those treated for myeloma having a risk 2.8 times greater. Interestingly, not using cyclophosphamide before the transplant increased the risk of ES by over three times.
Who this helps: This information benefits doctors and patients by highlighting risks and treatment considerations for those undergoing stem cell transplants for multiple myeloma.