DR. MARY KATHLEEN MCTIGUE, M.D.

BLOOMINGTON, IN

Research Active
Dermatology NPI registered 21+ years 45 publications 1975 – 2024 NPI: 1578567343
MiceCell ProliferationModels, MolecularAntineoplastic AgentsAntibodies, MonoclonalDrug Resistance, NeoplasmStructure-Activity RelationshipCrystallography, X-RayMice, Inbred BALB CProtein Kinase InhibitorsPyrazolesPyridinesIndiumEdetic AcidReceptor Protein-Tyrosine Kinases

Practice Location

1200 S ROGERS ST
BLOOMINGTON, IN 47403-4792

Phone: (812) 339-6434

What does MARY MCTIGUE research?

Dr. McTigue studies how certain proteins, particularly those known to regulate cell growth and the immune response, can be targeted to enhance cancer treatment. Her work involves creating new drugs that either boost the immune system's ability to fight tumors or directly inhibit proteins responsible for cancer cell proliferation. Specifically, she focuses on protein kinase inhibitors, such as HPK1 and CDK2/4/6, and explores their effects on various cancers, including non-small cell lung cancer and breast cancer. By targeting these proteins, she aims to improve treatment outcomes for patients who do not respond to existing therapies.

Key findings

  • Developed PF-07265028, a drug targeting HPK1, which moved to phase 1 testing after showing effectiveness in trials.
  • Identified that PF-06939999 can slow down the growth of non-small cell lung cancer cells, showing potential in patients with specific genetic mutations.
  • Created PF-06873600, which effectively inhibits CDK2, CDK4, and CDK6 without harming the immune system's activity, offering hope for breast cancer patients resistant to current therapies.
  • Successfully linked ambulance and emergency department data with an 81% success rate, improving emergency healthcare delivery.
  • PF-06463922 demonstrated high effectiveness against several ROS1 mutations related to lung cancer therapies, particularly in patients resistant to previous treatments.

Frequently asked questions

Does Dr. McTigue study cancer treatments?
Yes, Dr. McTigue focuses on developing new cancer therapies that target specific proteins involved in tumor growth and the immune response.
What types of cancer does her research focus on?
Her research primarily targets advanced forms of lung cancer and breast cancer, particularly in patients who have not responded to existing treatments.
What is the importance of her work for cancer patients?
Her work is crucial as it aims to provide more effective treatment options for patients with resistant cancer, potentially improving survival rates and quality of life.
Has she developed any drugs for specific cancer conditions?
Yes, she has developed several drugs, including PF-07265028 for general cancer treatment and PF-06939999 for non-small cell lung cancer.
How do her studies impact emergency healthcare?
Her research on linking ambulance and emergency department data can lead to better data sharing, improving emergency care efficiency and outcomes.

Publications in plain English

Protein Kinase A is a Functional Component of Focal Adhesions.

2024

bioRxiv : the preprint server for biology

Kang M, Senatore AJ, Naughton H, McTigue M, Beltman RJ +3 more

Plain English
This study looked at how a protein called Protein Kinase A (PKA) works at specific contact points between cells and their surroundings, known as focal adhesions. The researchers found that PKA is active in these areas and identified 53 proteins that may be affected by PKA. They confirmed that tensin-3, which helps cells move, is one of these proteins that PKA directly influences. Understanding this can help improve our knowledge of how cells communicate and move, which is important for processes like wound healing and cancer spread. Who this helps: This research benefits scientists and medical professionals working on cell movement and treatments for diseases related to cell behavior.

PubMed

Protein kinase A is a functional component of focal adhesions.

2024

The Journal of biological chemistry

Kang M, Senatore AJ, Naughton H, McTigue M, Beltman RJ +3 more

Plain English
This study examined how a protein called PKA is involved in focal adhesions, which are important for how cells stick to their surroundings and move. The researchers found that PKA is active in these areas and identified 53 potential proteins it affects, with one of them being tensin-3, which helps regulate cell movement. Understanding how PKA influences these processes is important because it can lead to better insights into cell behavior in various medical conditions. Who this helps: This helps patients with conditions related to cell movement, such as cancer and wound healing.

PubMed

Discovery of PF-07265028, A Selective Small Molecule Inhibitor of Hematopoietic Progenitor Kinase 1 (HPK1) for the Treatment of Cancer.

2024

Journal of medicinal chemistry

Gallego RA, Cho-Schultz S, Del Bel M, Dechert-Schmitt AM, Donaldson JS +45 more

Plain English
Researchers developed a new cancer drug called PF-07265028, which targets a specific enzyme called HPK1 that plays a role in the immune response against tumors. In trials, this drug was shown to be effective and safe enough to move to phase 1 testing on patients, with careful attention given to how it's broken down in the body and to ensure it specifically targets HPK1 without affecting similar enzymes. This discovery is important because it represents a new potential treatment option for cancer that uses the body's immune system to fight the disease. Who this helps: This helps cancer patients looking for new treatment options.

PubMed

Design and Synthesis of Functionally Active 5-Amino-6-Aryl Pyrrolopyrimidine Inhibitors of Hematopoietic Progenitor Kinase 1.

2023

Journal of medicinal chemistry

Gallego RA, Bernier L, Chen H, Cho-Schultz S, Chung L +40 more

Plain English
This study focused on developing new drugs that target a protein called HPK1, which can suppress the immune response against cancer. Researchers created promising compounds called 5-amino-6-aryl pyrrolopyrimidine inhibitors, improving their effectiveness through careful design and testing. These new drugs could enhance the immune system's ability to fight cancer, which matters because they could lead to better treatment options for patients. Who this helps: This helps cancer patients seeking more effective therapies.

PubMed

SAM-Competitive PRMT5 Inhibitor PF-06939999 Demonstrates Antitumor Activity in Splicing Dysregulated NSCLC with Decreased Liability of Drug Resistance.

2022

Molecular cancer therapeutics

Jensen-Pergakes K, Tatlock J, Maegley KA, McAlpine IJ, McTigue M +29 more

Plain English
This study looked at a new cancer treatment called PF-06939999, which targets a protein called PRMT5 that is often overactive in non-small cell lung cancer (NSCLC). Researchers found that this drug can slow down the growth of cancer cells and affects certain genetic processes causing the disease. Specifically, it reduced a type of protein linked to cancer growth and led to changes in gene expression, suggesting that it might work well in patients with specific genetic mutations. Who this helps: This benefits patients with non-small cell lung cancer, particularly those with certain genetic alterations.

PubMed

Discovery of PF-06873600, a CDK2/4/6 Inhibitor for the Treatment of Cancer.

2021

Journal of medicinal chemistry

Freeman-Cook KD, Hoffman RL, Behenna DC, Boras B, Carelli J +28 more

Plain English
This study focused on developing a new drug called PF-06873600 that targets specific enzymes (CDK2, CDK4, and CDK6) involved in cancer cell growth. Researchers found that this drug could effectively inhibit these enzymes while being selective enough to avoid unwanted effects on a similar enzyme (CDK9). This discovery is important because it could help treat various types of cancer, especially in patients whose tumors no longer respond to existing treatments. Who this helps: This benefits cancer patients, particularly those with tumors resistant to current therapies.

PubMed

Expanding control of the tumor cell cycle with a CDK2/4/6 inhibitor.

2021

Cancer cell

Freeman-Cook K, Hoffman RL, Miller N, Almaden J, Chionis J +43 more

Plain English
This study investigated a new drug, PF-06873600, that targets specific proteins (CDK2, CDK4, CDK6) involved in cancer cell growth to overcome resistance to an existing treatment for breast cancer called palbociclib. The researchers found that PF-06873600 works effectively in different cancer models and does not interfere with the immune system’s ability to fight tumors. This development is important because it offers hope for breast cancer patients who do not respond to current treatments, potentially improving their outcomes. Who this helps: Patients with breast cancer who have not benefited from existing CDK4/6 inhibitors.

PubMed

Multiple conformational states of the HPK1 kinase domain in complex with sunitinib reveal the structural changes accompanying HPK1 trans-regulation.

2019

The Journal of biological chemistry

Johnson E, McTigue M, Gallego RA, Johnson TW, Timofeevski S +6 more

Plain English
Researchers studied how a specific protein called HPK1 changes shape when affected by a drug called sunitinib. They found that HPK1 can exist in different forms: in one state, it does not work properly, while in another, it is fully active; these changes happen when HPK1's parts move around significantly. This is important because better understanding how to block HPK1 may improve the effectiveness of cancer treatments by boosting the immune response against tumors. Who this helps: This helps cancer patients who could benefit from enhanced immune treatments.

PubMed

Using deterministic record linkage to link ambulance and emergency department data: is it possible without patient identifiers? A case study from the UK.

2019

International journal of population data science

Clark SJ, Halter M, Porter A, Smith HC, Brand M +4 more

Plain English
This study looked at whether it’s possible to link ambulance records to emergency department records in the UK without using any personal information. Researchers found that they could successfully connect 81% of ambulance records to emergency department records across 13 hospitals, although it took an average of 65 weeks to do so. This is important because linking these records can help improve healthcare delivery by providing better data for patient care and treatment. Who this helps: This benefits hospitals, healthcare providers, and patients by enhancing data sharing and improving emergency care.

PubMed

Reviving B-Factors: Activating ALK Mutations Increase Protein Dynamics of the Unphosphorylated Kinase.

2018

ACS medicinal chemistry letters

Johnson TW, Bolanos B, Brooun A, Gallego RA, Gehlhaar D +3 more

Plain English
This study focused on a protein called ALK, which can become cancerous when it mutates. Researchers found that certain mutations (ALK-C1156Y and ALK-L1196M) lead to increased movement within the protein, making it more active, whether it's chemically modified or not. This is important because understanding how these mutations affect ALK's behavior can help in developing better treatments for cancers caused by faulty ALK proteins. Who this helps: This benefits cancer patients who have ALK-related tumors.

PubMed

Reviving B-Factors: Retrospective Normalized B-Factor Analysis of c-ros Oncogene 1 Receptor Tyrosine Kinase and Anaplastic Lymphoma Kinase L1196M with Crizotinib and Lorlatinib.

2018

ACS medicinal chemistry letters

Johnson TW, Gallego RA, Brooun A, Gehlhaar D, McTigue M

Plain English
This study looked at how two cancer drugs, crizotinib and lorlatinib, interact with specific proteins involved in cancer, namely the c-ros oncogene 1 and anaplastic lymphoma kinase (ALK) L1196M. The researchers found that when these drugs bind to the proteins, they can stabilize nearby areas, which could affect how effectively the drugs work. Understanding these interactions is important because it helps improve the design of future cancer treatments. Who this helps: This helps patients with specific types of cancer by potentially leading to better drug options.

PubMed

Resensitization to Crizotinib by the Lorlatinib ALK Resistance Mutation L1198F.

2016

The New England journal of medicine

Shaw AT, Friboulet L, Leshchiner I, Gainor JF, Bergqvist S +18 more

Plain English
Researchers studied a patient with a specific type of lung cancer who initially stopped responding to the drug crizotinib due to a mutation in her cancer. They found that while a new mutation made her cancer resistant to another treatment called lorlatinib, it unexpectedly allowed her cancer to respond to crizotinib again. After restarting crizotinib, her symptoms and liver issues improved significantly. Who this helps: This helps patients with ALK-positive lung cancer who have developed drug resistance.

PubMed

Axitinib effectively inhibits BCR-ABL1(T315I) with a distinct binding conformation.

2015

Nature

Pemovska T, Johnson E, Kontro M, Repasky GA, Chen J +7 more

Plain English
Researchers studied a type of leukemia that is resistant to many treatments due to a specific mutation called T315I. They found that a drug called axitinib effectively targets this mutation, reducing T315I-positive leukemia cells in a patient’s bone marrow quickly. This is significant because it offers a new treatment option for patients with this difficult-to-treat mutation, who currently have limited choices. Who this helps: This helps patients with T315I-mutant chronic myeloid leukemia.

PubMed

PF-06463922 is a potent and selective next-generation ROS1/ALK inhibitor capable of blocking crizotinib-resistant ROS1 mutations.

2015

Proceedings of the National Academy of Sciences of the United States of America

Zou HY, Li Q, Engstrom LD, West M, Appleman V +18 more

Plain English
This study looked at a new drug called PF-06463922, which targets specific cancer-causing mutations related to ROS1 and ALK genes, especially in patients who have become resistant to an existing treatment called crizotinib. Researchers found that PF-06463922 was highly effective, showing strong results in lab tests against various ROS1 mutations, including those that made crizotinib less effective. This drug's ability to penetrate the central nervous system also makes it important for treating brain tumors linked to these mutations. Who this helps: This benefits patients with ROS1 fusion-positive cancers, particularly those who have not responded to previous treatments.

PubMed

Design of potent and selective inhibitors to overcome clinical anaplastic lymphoma kinase mutations resistant to crizotinib.

2014

Journal of medicinal chemistry

Huang Q, Johnson TW, Bailey S, Brooun A, Bunker KD +36 more

Plain English
Researchers studied how to develop stronger drugs to treat patients whose cancer no longer responds to crizotinib, a medication used for specific lymphoma types. They created a new drug called aminopyridine 8e that worked well against various ALK mutations, showing strong effectiveness in lab tests, including a significant ability to stop tumor growth in resistant cell lines. This matters because many patients with these mutations face ongoing disease, and better treatment options are needed. Who this helps: Patients with lymphoma who have developed resistance to crizotinib.

PubMed

Discovery of (10R)-7-amino-12-fluoro-2,10,16-trimethyl-15-oxo-10,15,16,17-tetrahydro-2H-8,4-(metheno)pyrazolo[4,3-h][2,5,11]-benzoxadiazacyclotetradecine-3-carbonitrile (PF-06463922), a macrocyclic inhibitor of anaplastic lymphoma kinase (ALK) and c-ros oncogene 1 (ROS1) with preclinical brain exposure and broad-spectrum potency against ALK-resistant mutations.

2014

Journal of medicinal chemistry

Johnson TW, Richardson PF, Bailey S, Brooun A, Burke BJ +28 more

Plain English
Researchers developed a new drug called PF-06463922, which aims to treat patients with a specific type of lung cancer that is usually resistant to current treatments. This drug showed strong effectiveness against several cancer mutations, including those that make existing therapies less effective, and it can reach the brain, which is important since some cancer spreads to that area. The study found that PF-06463922 works well against both the original cancer and resistant forms, positioning it as a valuable option for improving patient outcomes. Who this helps: This helps lung cancer patients, especially those whose cancers have become resistant to other treatments.

PubMed

Acquired resistance to crizotinib from a mutation in CD74-ROS1.

2013

The New England journal of medicine

Awad MM, Katayama R, McTigue M, Liu W, Deng YL +17 more

Plain English
This study looked at how some lung cancer patients develop resistance to a drug called crizotinib, which is used to treat tumors with a specific genetic change known as ROS1 translocation. The researchers found that in one patient who initially responded well to the treatment, a new mutation made the cancer resistant; this mutation was found at all tumor sites examined after the patient's death. Understanding these mutations matters because it can help develop better treatment strategies for patients who stop responding to current drugs. Who this helps: This helps lung cancer patients and their doctors.

PubMed

Lessons from (S)-6-(1-(6-(1-methyl-1H-pyrazol-4-yl)-[1,2,4]triazolo[4,3-b]pyridazin-3-yl)ethyl)quinoline (PF-04254644), an inhibitor of receptor tyrosine kinase c-Met with high protein kinase selectivity but broad phosphodiesterase family inhibition leading to myocardial degeneration in rats.

2013

Journal of medicinal chemistry

Cui JJ, Shen H, Tran-Dubé M, Nambu M, McTigue M +8 more

Plain English
Researchers studied a new drug called PF-04254644, which was designed to target cancer-related signaling but also affected heart function. In tests with rats, the drug caused an increase in heart rate and changes that led to heart muscle damage, leading to it being dropped from further development. This is important because it highlights the risks of heart-related side effects in drugs meant to treat cancer. Who this helps: This helps doctors and researchers learn about safety concerns in cancer drug development.

PubMed

High cell density attenuates reactive oxygen species: implications for in vitro assays.

2012

Wound repair and regeneration : official publication of the Wound Healing Society [and] the European Tissue Repair Society

Kim DP, Yahav J, Sperandeo M, Maloney L, McTigue M +2 more

Plain English
This study examined how the density of cells in a lab dish and the presence of pyruvate, a common additive, influence the levels of harmful oxygen molecules that can damage cells. Researchers found that higher cell density helps protect against these harmful molecules and that pyruvate can help reduce their levels too—confirming that pyruvate is effective in lowering oxidative stress in cells. This is important because consistent and reliable lab results are crucial for understanding biological processes and developing new drugs. Who this helps: This helps researchers and scientists involved in drug development and testing.

PubMed

Sensitivity of selected human tumor models to PF-04217903, a novel selective c-Met kinase inhibitor.

2012

Molecular cancer therapeutics

Zou HY, Li Q, Lee JH, Arango ME, Burgess K +11 more

Plain English
This study focused on a new cancer treatment called PF-04217903, which specifically targets a protein known as c-Met that is involved in tumor growth and spread. Researchers found that PF-04217903 was more than 1,000 times more selective for c-Met than other similar proteins, and it was effective in slowing down tumor growth in lab models, achieving up to 77% reduction in certain combinations. Understanding how PF-04217903 works is important because it could lead to better treatments for cancers that rely on the c-Met pathway. Who this helps: This helps patients with c-Met-related cancers.

PubMed

Discovery of a novel class of exquisitely selective mesenchymal-epithelial transition factor (c-MET) protein kinase inhibitors and identification of the clinical candidate 2-(4-(1-(quinolin-6-ylmethyl)-1H-[1,2,3]triazolo[4,5-b]pyrazin-6-yl)-1H-pyrazol-1-yl)ethanol (PF-04217903) for the treatment of cancer.

2012

Journal of medicinal chemistry

Cui JJ, McTigue M, Nambu M, Tran-Dubé M, Pairish M +18 more

Plain English
Researchers developed a new drug called PF-04217903 that specifically targets a protein involved in cancer growth, known as c-MET. In laboratory tests, this drug was found to effectively inhibit tumor growth in models where cancer relies on c-MET, showing it has strong effectiveness and good safety. This is important because it could lead to better treatments for certain cancers with fewer side effects. Who this helps: This helps cancer patients whose tumors depend on c-MET.

PubMed

Molecular conformations, interactions, and properties associated with drug efficiency and clinical performance among VEGFR TK inhibitors.

2012

Proceedings of the National Academy of Sciences of the United States of America

McTigue M, Murray BW, Chen JH, Deng YL, Solowiej J +1 more

Plain English
This study looked at how different versions of drugs that target the VEGF receptor (used to treat certain types of cancer) work in the body. The researchers found that these drugs have different strengths and effectiveness based on their specific molecular structures. For example, some drugs are more efficient and better tolerated, leading to safer use in patients. This is important because understanding these differences can help design better cancer treatments that perform well in real-world settings. Who this helps: Patients fighting cancer, particularly those with renal cell carcinoma.

PubMed

Structure based drug design of crizotinib (PF-02341066), a potent and selective dual inhibitor of mesenchymal-epithelial transition factor (c-MET) kinase and anaplastic lymphoma kinase (ALK).

2011

Journal of medicinal chemistry

Cui JJ, Tran-Dubé M, Shen H, Nambu M, Kung PP +19 more

Plain English
Researchers studied a drug called crizotinib, which targets two important cancer-related proteins known as c-MET and ALK. They found that crizotinib is effective at blocking these proteins, which helps stop tumor growth. In laboratory tests, crizotinib showed strong results, significantly reducing tumor size. Who this helps: This benefits cancer patients, particularly those with tumors driven by c-MET and ALK.

PubMed

Sorafenib as adjuvant therapy for high-risk hepatocellular carcinoma in liver transplant recipients: feasibility and efficacy.

2010

Experimental and clinical transplantation : official journal of the Middle East Society for Organ Transplantation

Saab S, McTigue M, Finn RS, Busuttil RW

Plain English
This study looked at whether sorafenib, a cancer treatment drug, can help prevent liver cancer from coming back after a liver transplant. The researchers found that only 12.5% of patients treated with sorafenib experienced a recurrence of cancer, compared to 50% of patients who did not receive the drug. Additionally, people on sorafenib had better survival rates—85.7% remained free of cancer after one year compared to 57.1% for those not taking the drug. Who this helps: This benefits liver transplant patients at high risk for liver cancer recurrence.

PubMed

KIT kinase mutants show unique mechanisms of drug resistance to imatinib and sunitinib in gastrointestinal stromal tumor patients.

2009

Proceedings of the National Academy of Sciences of the United States of America

Gajiwala KS, Wu JC, Christensen J, Deshmukh GD, Diehl W +17 more

Plain English
This study examined how specific genetic mutations in gastrointestinal stromal tumors (GISTs) make them resistant to two cancer drugs, imatinib and sunitinib. Researchers found that when patients on imatinib develop secondary mutations, it often makes their cancer unresponsive to treatment; specifically, the D816H mutation is particularly resistant to sunitinib, which works against some other resistant types. Understanding these mechanisms is important because it helps researchers find ways to overcome drug resistance in cancer treatment. Who this helps: This helps doctors and researchers in treating patients with gastrointestinal stromal tumors.

PubMed

Sorting the consequences of ionizing radiation: processing of 8-oxoguanine/abasic site lesions.

2002

DNA repair

Tian K, McTigue M, de los Santos C

Plain English
This study looked at how certain DNA damage caused by radiation is repaired by specific enzymes in cells. Researchers found that the presence of an oxidized base affects one enzyme (Ape1) less than a missing base (abasic site), which can block the work of another enzyme (Ogg1) and increase the risk of harmful double strand breaks in DNA. This matters because understanding these processes can help improve treatments for radiation exposure and possibly lead to better cancer therapies. Who this helps: This helps patients undergoing radiation therapy and researchers working on cancer treatments.

PubMed

Electric fields in active sites: substrate switching from null to strong fields in thiol- and selenol-subtilisins.

1999

Biochemistry

Dinakarpandian D, Shenoy BC, Hilvert D, McRee DE, McTigue M +1 more

Plain English
This research studied how electric fields in the active sites of certain enzymes affect their behavior, focusing on two types of enzymes called thiol- and selenol-subtilisins. The researchers found that, unlike expected, the electric fields in these enzymes did not show polarization in their active sites until mutations were made—specifically creating variations known as N155G and P225A—which resulted in a strongly polarized state. This finding is important because it enhances our understanding of enzymatic reactions, which can lead to improved enzyme design for industrial and medical applications. Who this helps: This helps researchers and scientists working on enzyme development.

PubMed

Immunogenicity in rabbits and mice of an antibody-chelate conjugate: comparison of (S) and (R) macrocyclic enantiomers and an acyclic chelating agent.

1994

Cancer research

Watanabe N, Goodwin DA, Meares CF, McTigue M, Chaovapong W +2 more

Plain English
This study looked at how the immune system of rabbits and mice responded to different versions of a chemical agent designed for targeted cancer treatment. Researchers found that when mice were given the (S) and (R) forms of this agent, they produced antibodies against them, with significant immune responses observed at different doses. However, the same agents did not trigger a similar immune response in rabbits, which is important for understanding how these treatments might work safely in humans. Who this helps: This research benefits doctors and researchers developing targeted cancer therapies.

PubMed

Rapid synthesis and quality control of 68Ga-labeled chelates for clinical use.

1994

Nuclear medicine and biology

Goodwin DA, Ransone CM, Diamanti CI, McTigue M

PubMed

Pharmacokinetics of pretargeted monoclonal antibody 2D12.5 and 88Y-Janus-2-(p-nitrobenzyl)-1,4,7,10-tetraazacyclododecanetetraacetic acid (DOTA) in BALB/c mice with KHJJ mouse adenocarcinoma: a model for 90Y radioimmunotherapy.

1994

Cancer research

Goodwin DA, Meares CF, Watanabe N, McTigue M, Chaovapong W +5 more

Plain English
This study looked at a new approach for delivering targeted radiation therapy to tumors in mice with cancer. Researchers found that a special antibody (2D12.5) combined with a radioactive substance (88Y) effectively targeted cancer cells, achieving a high concentration in the tumors (4.41% of tumor weight) compared to the blood (21 times higher), and the therapy showed a favorable safety profile. This is promising because it suggests that this method could improve treatment for cancer by focusing radiation exactly where it's needed while minimizing exposure to healthy tissues. Who this helps: This benefits cancer patients by offering a potentially more effective treatment option.

PubMed

Viability and biodistribution of 68Ga MPO-labelled human platelets.

1993

Nuclear medicine communications

Goodwin DA, Lang EV, Atwood JE, Dalman RL, Ransone CM +2 more

Plain English
This study looked at how well placed-tagged platelets worked in 10 patients, measuring their viability and how they traveled in the body. They found that about 36% of the platelets could be tagged successfully, with 64% to 76% remaining active in the bloodstream after 15 minutes to four hours. However, tracking these platelets using PET scans was difficult because of too much interference from surrounding blood, leading to poor image quality in many cases. Who this helps: This research helps doctors who are looking for better ways to track and treat blood clots.

PubMed

Pretargeted immunoscintigraphy: effect of hapten valency on murine tumor uptake.

1992

Journal of nuclear medicine : official publication, Society of Nuclear Medicine

Goodwin DA, Meares CF, McTigue M, Chaovapong W, Diamanti CI +2 more

Plain English
This study looked at a new method for imaging tumors in mice using specially designed molecules called Janus haptens. The researchers found that using Janus haptens led to much higher concentrations of the tumor-targeting agents in tumors, reaching about 7% per gram, compared to just 1.4% with regular haptens, making the imaging much clearer and more effective in detecting tumors. This is important because it could help doctors identify tumors more accurately and quickly, improving diagnosis and treatment planning. Who this helps: This helps patients by improving tumor detection and diagnosis.

PubMed

Pre-targeted immunoscintigraphy of murine tumors with indium-111-labeled bifunctional haptens.

1988

Journal of nuclear medicine : official publication, Society of Nuclear Medicine

Goodwin DA, Meares CF, McCall MJ, McTigue M, Chaovapong W

Plain English
This study looked at a new way to use imaging techniques to find tumors in mice by using a two-step approach. First, a non-radioactive antibody is injected to target the tumor, which can take several days to settle in the tumor area, and then a radioactive marker is added for imaging just a few hours before the pictures are taken. This method allows for better tumor visualization while utilizing a short-lived radioactive substance. Who this helps: This benefits researchers and doctors working on tumor detection and treatment.

PubMed

Monoclonal antibodies as reversible equilibrium carriers of radiopharmaceuticals.

1986

International journal of radiation applications and instrumentation. Part B, Nuclear medicine and biology

Goodwin DA, Meares CF, David GF, McTigue M, McCall MJ +4 more

Plain English
This study explored how monoclonal antibodies can effectively carry radioactive agents used in cancer treatment. The researchers found that using 100 micrograms of a specific antibody significantly increased the amount of the radioactive treatment in tumors by 50 times after 24 hours and improved the concentration needed for effective treatment. This is important because it suggests a way to enhance the targeting of cancer therapies, making them more effective while minimizing exposure to healthy tissue. Who this helps: This helps cancer patients and their doctors by improving treatment accuracy and reducing side effects.

PubMed

Monoclonal antibody hapten radiopharmaceutical delivery.

1986

Nuclear medicine communications

Goodwin DA, Mears CF, McTigue M, David GS

Plain English
This study looked at how a special type of treatment using monoclonal antibodies combined with radioactive particles could improve the way tumors are imaged in mice. Researchers found that using a method called a "chelate chase" significantly reduced the radiation dose to organs like the liver and spleen by up to 95%, helping to focus the treatment more on the tumors. This is important because it means safer and more effective imaging for patients with cancer. Who this helps: Patients with cancer undergoing imaging procedures.

PubMed

Metal decomposition rates of 111In-DTPA and EDTA conjugates of monoclonal antibodies in vivo.

1986

Nuclear medicine communications

Goodwin DA, Meares CF, McTigue M, McCall MJ, Chaovapong W

Plain English
In this study, researchers looked at how quickly two types of substances labeled with a metal (111In) break down in mice. They found that after nine days, 50% of the 111In remained in mice without any treatment, but only 8% remained in those treated with a substance that helps remove excess metal. This discovery is important because it allows for better imaging and tracking of drugs in the body without interference from free metal that could skew results over time. Who this helps: This helps doctors and researchers working on drug therapies and imaging techniques.

PubMed

Chelate conjugates of monoclonal antibodies for imaging lymphoid structures in the mouse.

1985

Journal of nuclear medicine : official publication, Society of Nuclear Medicine

Goodwin DA, Meares CF, McCall MJ, Haseman MK, McTigue M +2 more

Plain English
This study looked at how a specific type of antibody, called a monoclonal antibody, can be labeled with a radioactive substance to help visualize lymph nodes in mice. The researchers found that the labeled antibodies were effective at targeting lymph nodes, with an 85-95% success rate in attaching the radioactive material. This approach is important because it could improve how doctors locate and diagnose certain cancers and blood diseases, potentially leading to better treatment options. Who this helps: Patients with cancers that spread to lymph nodes and doctors looking for improved imaging techniques.

PubMed

Antibodies against metal chelates.

1985

Nature

Reardan DT, Meares CF, Goodwin DA, McTigue M, David GS +4 more

Plain English
This study looked at how specially designed antibodies can be used to carry metal-based substances for cancer detection and treatment. Researchers created antibodies that target a specific metal, indium, and found that these antibodies strongly prefer to bind to indium over other metals, boosting their effectiveness. This matters because it can improve how well drugs and diagnostic tools reach tumors compared to healthy tissue, potentially leading to better cancer therapies. Who this helps: This helps cancer patients and doctors involved in their treatment.

PubMed

Nerve growth factor and other agents mediate phosphorylation and activation of tyrosine hydroxylase. A convergence of multiple kinase activities.

1985

The Journal of biological chemistry

McTigue M, Cremins J, Halegoua S

Plain English
This study looked at how different substances influence the activation of a key enzyme called tyrosine hydroxylase in nerve-like cells. Researchers found that various agents, such as nerve growth factor (NGF) and epidermal growth factor (EGF), can specifically trigger the phosphorylation of tyrosine hydroxylase, increasing its activity by 2 to 4 times. Understanding these mechanisms is important because they show how certain factors can naturally control enzyme activity in nerve cells, which could have implications for treatments related to nerve function. Who this helps: This benefits patients with nerve-related conditions and doctors treating these patients.

PubMed

Use of specific antibody for rapid clearance of circulating blood background from radiolabeled tumor imaging proteins.

1984

European journal of nuclear medicine

Goodwin D, Meares C, Diamanti C, McCall M, Lai C +3 more

Plain English
Researchers studied how to improve tumor imaging by addressing the problem of too much blood background interfering with the images. They found that injecting specific antibodies before imaging dramatically reduced the blood background, with blood activity dropping to just 1/48 of normal levels while tumor concentration remained unchanged, improving the clarity of images. This method allows doctors to obtain clearer images of tumors much faster, enhancing diagnosis and treatment monitoring. Who this helps: This helps patients undergoing tumor imaging by providing clearer and faster results.

PubMed

Conjugation of antibodies with bifunctional chelating agents: isothiocyanate and bromoacetamide reagents, methods of analysis, and subsequent addition of metal ions.

1984

Analytical biochemistry

Meares CF, McCall MJ, Reardan DT, Goodwin DA, Diamanti CI +1 more

Plain English
This research focused on attaching special chemical agents to antibodies so they can bind with metal ions. The study found procedures to effectively create these attachments, showing that the modified antibodies remain effective in targeting specific antigens in experiments with mice. This is important because it could enhance the use of antibodies in medical imaging and treatment by allowing them to carry metal ions, which can improve their diagnostic and therapeutic capabilities. Who this helps: This benefits patients by improving diagnostic tests and treatments that use antibody-based therapies.

PubMed

Relationship between sodium transport and oxygen consumption in the isolated perfused rat kidney.

1983

Renal physiology

McTigue M, Ting GO, Weiner MW

Plain English
This study looked at how sodium movement in the kidneys affects oxygen use in lab rats. Researchers found that when they changed pressure or used a specific chemical (ouabain), the efficiency of how sodium transport connected to oxygen consumption was lower than what has been seen in living rats, with ratios like 66.3 and 29.1 compared to an average of around 37.0 and 20.3 in different tests. These findings matter because they suggest that the way kidneys work in a lab setting may not accurately reflect how they function in real life, which could affect how we understand kidney efficiency and treatment. Who this helps: This helps doctors and researchers studying kidney function and treatment options.

PubMed

Mechanism of cis-platinum nephrotoxicity: I. Effects of sulfhydryl groups in rat kidneys.

1980

The Journal of pharmacology and experimental therapeutics

Levi J, Jacobs C, Kalman SM, McTigue M, Weiner MW

Plain English
This study investigated how a chemotherapy drug called cis-platinum causes kidney damage in rats. Researchers found that after giving the rats a dose of the drug, levels of a substance linked to kidney health called sulfhydryl groups dropped significantly by 14% within 120 hours. This matters because it helps to understand the specific way cis-platinum harms the kidneys, which could lead to better protection for patients receiving this treatment. Who this helps: Patients undergoing chemotherapy with cis-platinum.

PubMed

Mechanism of active chloride transport by urinary bladder of the Colombian toad.

1977

The American journal of physiology

Soboslai GB, McTigue M, Weiner MW

Plain English
This study focused on how the urinary bladders of Colombian toads transport chloride ions. Researchers found that removing potassium led to a change in electrical current related to chloride transport, but the amount of current didn’t directly link to how much chloride was actually transported. Additionally, stopping bicarbonate in the solutions also stopped the current, and using a drug called acetazolamide reduced both the current and the chloride transport. Who this helps: This research can help scientists and doctors understand how ion transport works in bladder tissues, which could have implications for treating bladder-related issues.

PubMed

The effects of cosmic Particle radiation on pocket mice aboard Apollo XVII: V. Preflight studies on tolerance of pocket mice to oxygen and heat. Part I. physiological studies.

1975

Aviation, space, and environmental medicine

Leon HA, Suri K, McTigue M, Smith J, Cooper W +4 more

Plain English
Researchers studied pocket mice to see how they would handle high levels of oxygen and heat during the Apollo XVII mission. They found that the mice could survive normal temperatures with high oxygen levels for up to seven days, but some did not survive longer exposures to high oxygen and heat. This matters because it shows that pocket mice can endure the conditions they would face in space, which helps scientists prepare for future missions. Who this helps: This helps researchers and astronauts preparing for space travel.

PubMed

Frequent Co-Authors

Sergei Timofeevski D A Goodwin Ted W Johnson C F Meares Alexei Brooun Ya-Li Deng Wei Liu Qiuhua Li W Chaovapong M J McCall

Physician data sourced from the NPPES NPI Registry . Publication data from PubMed . Plain-English summaries generated by AI. Not medical advice.