Madhu Kandarpa studies multiple myeloma, looking for effective yet novel treatments to combat this currently incurable disease. Specifically, they examine how certain small molecules can disrupt the way cancer cells handle damaged proteins, forcing those cells to die. Kandarpa’s research highlights drugs, such as RTA408 and omaveloxolone, which have shown promise in killing myeloma cells that have become resistant to standard therapies. Their work uncovers new approaches to target and eliminate cancer cells more effectively.
Key findings
RTA408 was found to kill multiple myeloma cells by disrupting their cell membrane structure, triggering self-destruction even when standard treatments had failed.
In studies, omaveloxolone was shown to effectively induce the death of myeloma cells that had resisted other therapies, targeting a protein disposal mechanism that cancer cells exploit.
Both drugs offer new mechanisms of action for treating multiple myeloma, a cancer known for its resistance to conventional treatments.
Frequently asked questions
Does Dr. Kandarpa study multiple myeloma?
Yes, Dr. Kandarpa specifically focuses on multiple myeloma, researching new treatment options for this type of cancer.
What treatments has Dr. Kandarpa researched?
Dr. Kandarpa has researched small molecule drugs like RTA408 and omaveloxolone, which can kill multiple myeloma cells, especially those resistant to existing therapies.
Is Dr. Kandarpa's work relevant to patients with treatment-resistant myeloma?
Absolutely, their research is particularly important for patients whose myeloma has not responded to standard treatments, providing hope for new therapeutic options.
How do these treatments work?
These treatments work by targeting the cancer cells' ability to dispose of damaged proteins, ultimately leading to the cells' death.
Publications in plain English
Small molecule screening identifies cytotoxic endoplasmic reticulum-associated degradation inhibitors in multiple myeloma.
2026
Cell death & disease
Kropp EM, Matono S, Wang OY, Robida AM, Kandarpa M +6 more
Plain English Researchers tested thousands of existing drugs to find new ways to kill multiple myeloma cancer cells, and discovered that a drug called RTA408 works by blocking a cellular cleanup system that myeloma cells depend on to survive. When RTA408 shuts down this cleanup system, cancer cells die through a specific mechanism involving the cell's outer membrane, and it kills even myeloma cells that have become resistant to current treatments. This finding could lead to a new treatment option for multiple myeloma patients who no longer respond to standard drugs.
Effects of Calreticulin Mutations on HLA Class I Expression in Myeloproliferative Neoplasms.
2025
bioRxiv : the preprint server for biology
Kaur A, Desikan H, Pagnucco G, Kandarpa M, Talpaz M +1 more
Plain English This study looked at how mutations in the calreticulin gene affect the expression of a key protein, HLA class I, in patients with blood cancers known as myeloproliferative neoplasms (MPNs). Researchers found that while mutant calreticulin does not effectively restore HLA class I levels in cells, most MPN patients still have HLA class I expression within the normal range, especially those receiving interferon alpha treatment, which showed higher levels in monocytes. This research is important because it enhances our understanding of how these mutations influence immune system function in patients with MPNs.
Who this helps: This helps patients with myeloproliferative neoplasms and their doctors in making informed treatment decisions.
Quantitative MRI Assessment of Bone Marrow Disease in Myelofibrosis: A Prospective Study.
2025
Radiology. Imaging cancer
Robison TH, Levinson A, Lee W, Pettit K, Malyarenko D +6 more
Plain English This study looked at using MRI scans to assess bone marrow health in people with myelofibrosis, a type of blood cancer, as a less invasive alternative to traditional biopsies. The researchers found that patients with myelofibrosis had higher levels of certain MRI markers indicating problems in the bone marrow compared to healthy individuals. Specifically, an MRI measurement called ADC was a strong indicator of how severe the bone marrow fibrosis was, with a significant increase in risk for those near the threshold for the disease.
Who this helps: This benefits patients with myelofibrosis by providing a safer way to monitor their condition.
Understanding the Functional Dependence and Inhibition of the Bcl‑2 Pro-Survival Proteins in a Wide Spectrum of Cancers toward Precision Medicine.
2025
ACS pharmacology & translational science
Kump KJ, Ahmad E, Foucar C, Avelar RA, Murga-Zamalloa C +11 more
Plain English This study looked at how certain proteins called Bcl-2 pro-survival proteins behave in different types of cancer and how they might be targeted for more effective treatments. Researchers found that blood cancers generally respond well to drugs that block these proteins, while specific types of lymphoma depend heavily on the Bcl-2 and Mcl-1 proteins. The study also showed that combining inhibitors of related proteins can lead to significant cancer cell death in solid tumors, suggesting new treatment options tailored to individual patient needs.
Who this helps: This benefits cancer patients by providing tailored therapies that may improve treatment outcomes.
Identification of Omaveloxolone as An Endoplasmic Reticulum Associated Degradation Inhibitor That Induces Early Apoptotic Signaling in Multiple Myeloma.
2025
bioRxiv : the preprint server for biology
Kropp EM, Matono S, Wang OY, Robida AM, Kandarpa M +6 more
Plain English Researchers tested thousands of existing drugs to find one that could block a cellular cleanup system called ERAD, and discovered that a drug called omaveloxolone (RTA408) does this effectively. When they applied this drug to multiple myeloma cancer cells—including ones that resist other treatments—it triggered the cancer cells to self-destruct by activating their internal death signals. This matters because multiple myeloma is currently incurable, and omaveloxolone could become a new treatment option, either alone or combined with existing drugs.
Broad Next-Generation Integrated Sequencing of Myelofibrosis Identifies Disease-Specific and Age-Related Genomic Alterations.
2024
Clinical cancer research : an official journal of the American Association for Cancer Research
Kandarpa M, Robinson D, Wu YM, Qin T, Pettit K +5 more
Plain English This study examined the genetic differences in patients with myelofibrosis (MF) compared to those with related blood disorders such as essential thrombocythemia (ET) and polycythemia vera (PV). Researchers analyzed the genes of 137 patients and found that those with MF had a higher average of mutations (5 per patient) compared to those with ET/PV (4 per patient). Understanding these genetic changes is important because it can help doctors predict disease progression and develop targeted treatments for patients with MF.
Who this helps: This research benefits patients with myelofibrosis and their doctors.
ctDNA transiting into urine is ultrashort and facilitates noninvasive liquid biopsy of HPV+ oropharyngeal cancer.
2024
JCI insight
Bhambhani C, Kang Q, Hovelson DH, Sandford E, Olesnavich M +23 more
Plain English This study looked at how tiny pieces of tumor DNA (called TR-ctDNA) from oropharyngeal cancer linked to HPV can be found in urine. Researchers created a new test that detects these short DNA fragments effectively, showing that this method can identify cancer presence and even suggest when cancer may return after treatment. They found that this urine test was consistent with blood tests for cancer detection, highlighting the potential of urine tests for easier and less invasive cancer monitoring.
Who this helps: This research benefits patients with HPV-related throat cancer, as it offers a simpler way to check for cancer without painful procedures.
Lysosomal degradation targets mutant calreticulin and the thrombopoietin receptor in myeloproliferative neoplasms.
2024
Blood advances
Kaur A, Venkatesan A, Kandarpa M, Talpaz M, Raghavan M
Plain English This study looked at mutated proteins in patients with certain blood disorders called myeloproliferative neoplasms (MPNs) and how they affect specific receptors involved in blood cell production. Researchers found that patients with a particular mutation (called CRTDel52) had lower levels of a receptor on their blood platelets, which could lead to problems in blood cell regulation. They discovered that a drug targeting a cellular process (mTOR) reduced the levels of this mutation and its effects, suggesting a new way to treat these disorders.
Who this helps: This benefits patients with myeloproliferative neoplasms by providing potential new treatment options.
Targeting the mSWI/SNF complex in POU2F-POU2AF transcription factor-driven malignancies.
2024
Cancer cell
He T, Xiao L, Qiao Y, Klingbeil O, Young E +27 more
Plain English In this study, researchers focused on small cell lung cancer (SCLC) and certain blood cancers linked to specific gene factors. They discovered that targeting a protein complex called mSWI/SNF effectively stopped the growth of these cancer cells, showing promising results in lab tests with no harmful side effects. This finding is important because it highlights a potential new treatment approach for patients with these types of cancers, who currently have limited options.
Who this helps: Patients with small cell lung cancer and specific blood cancers.
Adding venetoclax to lenalidomide and rituximab is safe and effective in patients with untreated mantle cell lymphoma.
2023
Blood advances
Phillips TJ, Bond D, Takiar R, Kump K, Kandarpa M +12 more
Plain English This study focused on patients with untreated mantle cell lymphoma (MCL), a type of blood cancer. Researchers found that adding venetoclax to a treatment plan that included lenalidomide and rituximab was both safe and effective. Specifically, 96% of the patients responded to the treatment, and 86% had no detectable cancer cells remaining. This is important because it shows that this new combination could improve outcomes for patients with this challenging disease.
Who this helps: Patients with untreated mantle cell lymphoma.
Exploring the Molecular Landscape of Myelofibrosis, with a Focus on Ras and Mitogen-Activated Protein (MAP) Kinase Signaling.
2023
Cancers
Reynolds SB, Pettit K, Kandarpa M, Talpaz M, Li Q
Plain English This study looked at myelofibrosis (MF), a type of blood cancer, focusing on specific genetic changes related to the Ras/MAP Kinase signaling pathway. Researchers found that mutations in this pathway are found in about 21% of MF patients, with certain mutations affecting up to 15% and 14% of cases. Understanding these mutations is important because they may help improve treatment options for patients with this disease.
Who this helps: Patients with myelofibrosis.
Late Responses in Patients With Chronic Myeloid Leukemia Initially Refractory to Tyrosine Kinase Inhibitors.
2022
Clinical lymphoma, myeloma & leukemia
Shaya J, Pettit K, Kandarpa M, Bixby D, Mercer J +1 more
Plain English This study looked at patients with chronic myeloid leukemia (CML) who had not fully responded to originally prescribed tyrosine kinase inhibitor (TKI) therapy after two years. Among 305 patients treated, 79% achieved a complete cytogenetic response (CCyR) after two years, resulting in better survival rates (93% compared to 85% for nonresponders) and lower chances of disease worsening. Notably, 34% of those who initially did not respond eventually achieved CCyR with continued treatment, highlighting that persistence with therapy can still lead to positive outcomes.
Who this helps: This benefits patients with chronic myeloid leukemia who are struggling to respond to initial treatments.
Epigenetic downregulation of Socs2 contributes to mutant N-Ras-mediated hematopoietic dysregulation.
2022
Disease models & mechanisms
Jin X, Ng V, Zhao M, Liu L, Higashimoto T +7 more
Plain English This study looked at how a mutation in the N-Ras gene affects blood stem cells and leads to blood cancers. The researchers found that this mutation activates a protein called Jak2, which in turn activates Stat5 and causes blood stem cells to grow too much. They also discovered that a protein called Socs2 usually helps control this process, but it gets shut down in the presence of the N-Ras mutation. When Socs2 was restored, the growth of cancer cells was slowed down. This matters because understanding this process can help develop new treatments for blood cancers related to RAS mutations.
Who this helps: This helps patients with blood cancers, particularly those with RAS mutations.
Predictive factors and outcomes for ibrutinib in relapsed/refractory marginal zone lymphoma: a multicenter cohort study.
2022
Journal of hematology & oncology
Epperla N, Zhao Q, Chowdhury SM, Shea L, Moyo TK +40 more
Plain English This study looked at how effective ibrutinib is for patients with relapsed or refractory marginal zone lymphoma and found that 48% of patients responded to the treatment. In particular, among 119 patients, 58% showed an overall response, while 13% experienced disease progression despite the therapy. The results indicate that patients who have complex genetic issues or who were already resistant to previous treatments face much worse outcomes, so they need to be prioritized for new treatments.
Who this helps: This research benefits doctors and patients with marginal zone lymphoma by identifying high-risk groups that may need alternative therapies.
Downregulation of SOX2 by inhibition of Usp9X induces apoptosis in melanoma.
2021
Oncotarget
Potu H, Kandarpa M, Peterson LF, Durham A, Donato NJ +1 more
Plain English This study explored how blocking a specific enzyme, Usp9x, affects a protein called SOX2 in melanoma cancer cells with BRAF mutations. Researchers found that reducing Usp9x led to more SOX2 being broken down, which made melanoma cells more likely to die when treated with BRAF inhibitors; this combination treatment completely stopped tumor growth in lab settings. This finding is important because it offers a new way to tackle melanoma, especially in patients who have tumors resistant to existing therapies.
Who this helps: This helps melanoma patients, especially those with BRAF mutations who have limited treatment options.
Mechanism of mutant calreticulin-mediated activation of the thrombopoietin receptor in cancers.
2021
The Journal of cell biology
Venkatesan A, Geng J, Kandarpa M, Wijeyesakere SJ, Bhide A +3 more
Plain English This study focused on how certain mutations in a protein called calreticulin (specifically CRTDel52 and CRTIns5) contribute to blood cancers known as myeloproliferative neoplasms (MPNs). Researchers found that the mutated calreticulin can activate the thrombopoietin receptor, which leads to abnormal cell growth, and identified specific mutations that allow this process to occur. Understanding this mechanism is important because it clarifies how these cancers develop, potentially guiding future treatments.
Who this helps: This helps patients with myeloproliferative neoplasms and their doctors.
Menin inhibitor MI-3454 induces remission in MLL1-rearranged and NPM1-mutated models of leukemia.
2020
The Journal of clinical investigation
Klossowski S, Miao H, Kempinska K, Wu T, Purohit T +30 more
Plain English This study focused on a new drug called MI-3454, which targets a specific interaction between two proteins linked to certain types of leukemia. Researchers found that MI-3454 effectively stopped the growth of leukemia cells and led to complete remission in mouse models, including those derived from patient samples. This is significant because it shows promise for treating patients with leukemia related to specific genetic changes, indicating that MI-3454 could be a potential treatment option for them.
Who this helps: This helps leukemia patients with MLL1 rearrangements or NPM1 mutations.
Survival following allogeneic transplant in patients with myelofibrosis.
2020
Blood advances
Gowin K, Ballen K, Ahn KW, Hu ZH, Ali H +63 more
Plain English This study looked at the survival rates of patients with myelofibrosis (MF) who received a special type of stem cell transplant called allogeneic hematopoietic cell transplantation (HCT) compared to those who did not receive the transplant. They found that in the first year, patients who underwent HCT had lower survival rates due to early complications, with a hazard ratio of 0.26 for intermediate-risk patients and 0.16 for low-risk patients. However, after the first year, patients who received HCT had better survival rates than those who did not, particularly for those with higher risk scores, showing a long-term advantage for HCT.
Who this helps: This research benefits patients with myelofibrosis, particularly those with higher risk levels considering HCT for treatment.
Tumor necrosis factor related apoptosis inducing ligand (TRAIL) regulates deubiquitinase USP5 in tumor cells.
2019
Oncotarget
Potu H, Kandarpa M, Peterson LF, Donato NJ, Talpaz M
Plain English This study looked at how a molecule called TRAIL affects cancer cells, specifically focusing on a protein named USP5 that seems to make some cancer cells resistant to TRAIL treatment. The researchers found that when cancer cells sensitive to TRAIL were exposed to it, there was a significant decrease in USP5 activity, leading to more cancer cell death, while resistant cells did not show this effect. By using a special drug to block USP5, they increased the effectiveness of TRAIL in killing resistant cancer cells, suggesting that targeting USP5 could improve treatment outcomes for patients.
Who this helps: This helps patients with cancers that are resistant to current TRAIL treatments.
Clec16a, Nrdp1, and USP8 Form a Ubiquitin-Dependent Tripartite Complex That Regulates β-Cell Mitophagy.
2018
Diabetes
Pearson G, Chai B, Vozheiko T, Liu X, Kandarpa M +2 more
Plain English This study looked at how certain proteins help pancreatic cells, which produce insulin, get rid of damaged mitochondria—tiny energy factories inside cells. The researchers found that a complex of proteins called Clec16a, Nrdp1, and USP8 is crucial for this process. When a cancer drug called lenalidomide disrupts this protein complex, it leads to poorer pancreatic cell function and insulin secretion, which can result in diabetes symptoms in some patients.
Who this helps: This research primarily benefits patients with diabetes, particularly those undergoing treatment with lenalidomide.
Usp9x regulates Ets-1 ubiquitination and stability to control NRAS expression and tumorigenicity in melanoma.
2017
Nature communications
Potu H, Peterson LF, Kandarpa M, Pal A, Sun H +6 more
Plain English This study looked at how a protein called Usp9x influences another protein, Ets-1, which plays a role in melanoma, a type of skin cancer. The researchers found that high levels of Usp9x and Ets-1 were present in more aggressive forms of melanoma, and blocking Usp9x could reduce tumor growth by preventing Ets-1 from promoting cancer-related genes. Their findings show that targeting Usp9x might be a promising strategy for melanoma treatment.
Who this helps: This helps patients with melanoma and their doctors by offering potential new treatment options.
Clinical characteristics and whole exome/transcriptome sequencing of coexisting chronic myeloid leukemia and myelofibrosis.
2017
American journal of hematology
Kandarpa M, Wu YM, Robinson D, Burke PW, Chinnaiyan AM +1 more
Plain English In this study, researchers looked at patients who have both chronic myeloid leukemia (CML) and myelofibrosis, focusing on the genetic changes in their blood cells. They found that most of these patients had mutations in genes that affect how blood cells develop, with 1% to 47% of these mutations present across different patients. This matters because understanding the genetic changes can help explain why some patients develop more than one type of blood cancer, which can inform treatment options.
Who this helps: This research benefits patients with coexisting blood cancers and the doctors who treat them.
Rapid, ultra low coverage copy number profiling of cell-free DNA as a precision oncology screening strategy.
2017
Oncotarget
Hovelson DH, Liu CJ, Wang Y, Kang Q, Henderson J +27 more
Plain English This study examined a new method called PRINCe that tests cell-free DNA (cfDNA) from cancer patients to understand their cancer better and identify potential treatment options. In a group of 100 patients with advanced cancer, including many with aggressive prostate cancer, researchers found significant genetic changes in 34% of the cfDNA samples, which could guide treatment decisions. This approach allows for a faster and cheaper way to monitor cancer and personalize treatment, making it easier for doctors to help patients receive the right therapies.
Who this helps: This benefits patients with advanced cancer and their doctors by improving treatment personalization.
Proliferative Glomerulonephritis With Monoclonal IgG1κ Deposits in a Hepatitis C Virus-Positive Patient.
2016
American journal of kidney diseases : the official journal of the National Kidney Foundation
Hemminger J, Kandarpa M, Tsai A, Nadasdy T
Plain English This study examined a patient with hepatitis C who developed a specific type of kidney disease linked to the virus. The patient had a condition called monoclonal cryoglobulinemic glomerulonephritis, which is less common than the more typical form associated with hepatitis C. The findings highlight that even very subtle, hard-to-detect disorders of the immune system can lead to serious kidney problems, emphasizing the need for careful monitoring in hepatitis C patients.
Who this helps: This information benefits doctors treating patients with hepatitis C, particularly those experiencing kidney issues.
Synergistic Myeloma Cell Death via Novel Intracellular Activation of Caspase-10-Dependent Apoptosis by Carfilzomib and Selinexor.
2016
Molecular cancer therapeutics
Rosebeck S, Alonge MM, Kandarpa M, Mayampurath A, Volchenboum SL +8 more
Plain English This study looked at how two drugs, carfilzomib and selinexor, work together to kill myeloma cells, which are a type of cancer cell found in multiple myeloma. Researchers found that when these two drugs were used together, they significantly increased cell death in myeloma cells and stopped tumor growth in mice. The combined treatment effectively targeted the processes that keep these cancer cells alive, highlighting a new way to potentially treat patients whose myeloma has come back or has not responded to other treatments.
Who this helps: This helps patients with relapsed or refractory multiple myeloma.
Targeting deubiquitinase activity with a novel small-molecule inhibitor as therapy for B-cell malignancies.
2015
Blood
Peterson LF, Sun H, Liu Y, Potu H, Kandarpa M +9 more
Plain English This study focused on a specific enzyme called Usp9x, which is found in high levels in patients with myeloma, a type of blood cancer. Researchers tested a new drug called EOAI3402143, which lowers the levels of a survival protein called Mcl-1, leading to cancer cell death. They found that this drug not only triggered cancer cell death but also shrank tumors in mice, indicating it could be an effective treatment for myeloma.
Who this helps: This helps patients with myeloma and other B-cell cancers.
Proteomic profiling of naïve multiple myeloma patient plasma cells identifies pathways associated with favourable response to bortezomib-based treatment regimens.
2015
British journal of haematology
Dytfeld D, Rosebeck S, Kandarpa M, Mayampurath A, Mellacheruvu D +8 more
Plain English This study looked at the plasma cells from multiple myeloma patients before they started treatment to see which proteins might predict how well they would respond to bortezomib-based therapies. Researchers found that certain proteins were linked to better responses, with some patients achieving a very good partial response or complete response to treatment. Specifically, they highlighted common pathways associated with positive outcomes and noted unique pathways that could help tailor treatments for individual patients.
Who this helps: This benefits patients with newly diagnosed multiple myeloma by guiding doctors in choosing the most effective treatments.
Perifosine plus lenalidomide and dexamethasone in relapsed and relapsed/refractory multiple myeloma: a Phase I Multiple Myeloma Research Consortium study.
2012
British journal of haematology
Jakubowiak AJ, Richardson PG, Zimmerman T, Alsina M, Kaufman JL +10 more
Plain English This study looked at a combination treatment of perifosine, lenalidomide, and dexamethasone for patients with multiple myeloma who had not responded to previous treatments. Out of 30 patients, 73% showed improvement, with half achieving a significant reduction in disease. On average, patients lived 30.6 months after starting the treatment, which indicates it could be a promising option for those struggling with this cancer.
Who this helps: This benefits patients with relapsed and refractory multiple myeloma.
Cystatin C improves the detection of mild renal dysfunction in older patients.
2003
Annals of clinical biochemistry
O'Riordan SE, Webb MC, Stowe HJ, Simpson DE, Kandarpa M +4 more
Plain English This study looked at how well a new kidney test called cystatin C could identify mild kidney problems in older patients compared to traditional tests like serum creatinine. Researchers found that cystatin C could detect nearly all cases of mild renal impairment, while serum creatinine missed about half of them. Specifically, cystatin C was more effective in recognizing issues when kidney function dropped below certain levels (64 mL/min for cystatin C compared to 44 mL/min for creatinine), making it a more reliable tool for checking kidney health in older adults.
Who this helps: This benefits older patients at risk of kidney issues and their doctors in diagnosing kidney problems more accurately.