Author Interviews, Cancer Research, Genetic Research / 15.04.2025

MedicalResearch.com Interview with: Myvizhi Esai Selvan, PhD Instructor of Genetics and Genomics Zeynep H. Gümüş, PhD Associate Professor Icahn School of Medicine at Mount Sinai MedicalResearch.com: What is the background for this study? Response: The germline genome of each individual person has a unique combination of millions of genetic variants that influence virtually all biological processes throughout life, including cancer evolution. In this study, we have investigated the impact of germline variants – genetic defects one is born with – on gene expression and protein abundance in tumors across cancer types. MedicalResearch.com: Would you describe the technique of precision peptidomics? Response: We have leveraged a cohort of 1,064 patients with multiple cancer types to explore the impact of germline variations on cancer-relevant genes through multiple-omics layers: from DNA to RNA, protein abundance and post-translational modifications. To assess the effects of coding variants and their association with cognate proteins, we used precision peptidomics, which is the quantification of peptides carrying genetic variants from individual patients. Through this approach, we mapped 337,469 protein coding germline variants onto patient peptides, revealing their potential impact on protein modifications, protein stability, allele-specific expression, and protein structure by leveraging the relevant protein databases. (more…)
Author Interviews, Immunotherapy, Lymphoma / 27.01.2025

MedicalResearch.com Interview with: Joshua Brody MD Director, Lymphoma Immunotherapy Program Icahn School of Medicine at Mount Sinai Hess Center for Science and Medicine New York, New York 10029   MedicalResearch.com: What is the background for this study?
  • Patients with relapsed diffuse large B-cell lymphoma (DLBCL) have poor outcomes.
  • Standard chemotherapy e.g. Gemcitabine + Oxaliplatin (GemOx) yields complete response in ~30% of these patients.
  • Epcoritamab, a CD3xCD20 bispecific antibody immunotherapy was recently approved for relapsed DLBCL as monotherapy but is not yet approved as part of combination therapy.
  • Other immunotherapies e.g. CAR-T have been difficult to combine with standard therapies.
(more…)
Author Interviews, Ovarian Cancer / 04.11.2024

MedicalResearch.com Interview with: Alessia Baccarini, PhD Assistant Professor Dept. of Immunology and Immunotherapy (DII) Icahn School of Medicine at Mount Sinai New York, New York 10029 MedicalResearch.com: What is the background for this study? Response: Ovarian cancer is characterized by a complex tumor microenvironment (TME) that significantly contributes to resistance against immunotherapy, particularly immune checkpoint blockade (ICB) therapies like anti-PD-1. Understanding the extracellular signals—such as cytokines and chemokines—that ovarian cancer cells utilize to create an immunosuppressive TME is critical for improving treatment outcomes. Our research focuses on elucidating how these signaling factors contribute to tumor growth and immune evasion. We utilized a novel genomic functional approach called Perturb-map to study intratumoral heterogeneity (ITH) in ovarian cancer within a mouse model, allowing us to investigate the communication between ovarian cancer cells and immune cells.  (more…)
Author Interviews, Genetic Research, Heart Disease, Nature / 14.06.2024

MedicalResearch.com Interview with: Ben Omega Petrazzini, B.Sc. Associate Bioinformatician Ron Do Laboratory Ron Do, Ph.D. Professor, Department of Genetics and Genomic Sciences Director, Center for Genomic Data Analytics Associate Director in Academic Affairs, The Charles Bronfman Institute for Personalized Medicine Charles Bronfman Professor in Personalized Medicine Icahn School of Medicine at Mount Sinai     MedicalResearch.com: What is the background for this study? Response: Rare coding variants directly affect protein function and can inform the role of a gene in disease. Discovery of rare coding variant associations for coronary artery disease (CAD) to date have only had limited success. Genetic studies typically use standard phenotyping approaches to classify cases versus controls for CAD. However, this phenotyping approach doesn’t capture disease progression or severity in individuals. We recently introduced an in-silico score for CAD (ISCAD) that tracks CAD progression, severity, underdiagnosis and mortality (Forrest et al. The Lancet, 2023, PMID 36563696). ISCAD was built using a machine learning model trained on clinical data from electronic health records (EHR). Importantly, ISCAD is a quantitative score that measures CAD on a spectrum. The quantitative nature of the score provides an opportunity to discover additional rare coding variant associations that may not have been detected with the standard case-control phenotyping approach. Here in this study, we performed a large-scale rare variant association study in the exome sequences of 604,915 individuals for ISCAD, a machine learning-based score for CAD. (more…)
ASCO, Author Interviews, Cancer Research, Race/Ethnic Diversity / 05.06.2024

MedicalResearch.com Interview with: Nina Bickell, MD, MPH Associate Director of Community Engaged and Equity Research Co-Leader of the Cancer Prevention and Control Program Co-Director of the Center for Health Equity and Community Engaged Research The Tisch Cancer Institute Icahn School of Medicine at Mount Sinai   MedicalResearch.com: What is the background for this study? Response: Recruiting diverse patients to clinical trials is essential to advance cancer treatments, yet accrual remains low. Efficient recruitment requires the ability identify patients at treatment decision points and determine eligibility for open clinical trials – a time and personnel intensive undertaking. We developed an automated Regular Expressions technology to identify, classify and match patients to clinical trials and overcome the limitations of more resource-intensive technologies like Natural Language Processing (NLP). We created a screener, parser and matcher to: use the electronic health record to identify patients at treatment decision points based on progress notes and imaging reports and classify their cancer type, stage and receptor status; extract and categorize breast, liver and lung cancer trial data based on cancer type, stage, and receptor status from the National Cancer Institute's ClinicalTrials.gov database; pair eligible patients with relevant trials based on stage and receptor status. (more…)
Author Interviews, Colon Cancer, Gastrointestinal Disease, Immunotherapy / 04.06.2024

MedicalResearch.com Interview with: Steven H. Itzkowitz, MD, FACP, FACG, AGAF Professor of Medicine and Oncological Sciences Director of the GI Fellowship Program Icahn School of Medicine at Mount Sinai MedicalResearch.com: What is the background for this study? What are the main findings? Response: This study looked at patients with inflammatory bowel disease (IBD) who had a history of cancer in the past 5 years and asked whether the medications they received for their IBD might have affected their rates of getting future cancer (new or recurrent cancers). Because many of the medicines that are used to treat IBD can affect the immune system in various ways, there has been concern that the medicines might predispose to subsequent cancers. We found that patients who received immunosuppressive medications had a numerically increased risk of subsequent cancer, this was not statistically higher than those who had not been exposed to these medications. While previous studies have looked at this question retrospectively, this is the first report that analyzed this issue prospectively using individuals from the United States.  Moreover, this study represents a multi-institutional collaboration among gastroenterologists at most of the major NYC healthcare systems. (more…)
Author Interviews, Pulmonary Disease, Sleep Disorders / 21.05.2024

MedicalResearch.com Interview with: Ankit Parekh, PhD Director of the Sleep And Circadian Analysis (SCAN) Group Assistant Professor of Medicine (Pulmonary, Critical Care and Sleep Medicine) Icahn School of Medicine at Mount Sinai MedicalResearch.com: What is the background for this study? What are the main findings? Response: Sleep apnea is associated with incident cardiovascular disease, and is a common chronic condition affecting over a billion people worldwide. In diagnosing and treating sleep apnea, it is imperative to establish the type of sleep apnea—whether it is obstructive or central sleep apnea. The differential contribution of central vs. obstructive sleep apnea toward incidental cardiovascular disease in those with significant sleep apnea has not been well studied. Our group has developed an automated algorithm that deduces on a breath-by-breath level whether reductions in airflow are predominantly due to obstructive or central phenomena. Our algorithm uses several features that are known to be key in distinguishing the type of events and derives a probability of obstruction across each “small” (reduced amplitude) breath. The breath-by-breath probability is then used to determine whether a patient’s burden of sleep apnea is predominantly obstructive or central. In this work, we analyzed sleep study data from The Osteoporotic Fractures in Men (MrOS) cohort (N=2793) consisting of elderly men, across two visits separated on average by 6.5 years, and derived the probability of obstruction on a breath-by-breath level. The median probability of obstruction for each subject was computed and analyzed against outcomes of cardiovascular disease. We also assessed the stability of the metric in those without any prevalent cardiovascular disease. We find that median probability of obstruction was stable across the two visits, and those with any incident cardiovascular disease had a lower median probability of obstruction: patients with incident cardiovascular outcomes had a significant burden of sleep apnea that was predominantly “central” in nature. (more…)
Author Interviews, OBGYNE / 19.03.2024

MedicalResearch.com Interview with: Chelsea A DeBolt, MD Assistant Professor, Obstetrics, Gynecology and Reproductive Science Division of Maternal-Fetal Medicine Icahn School of Medicine at Mount Sinai MedicalResearch.com: What is the background for this study? Response: Significant immunological shifts, systemically and at the maternal-fetal interface, are required for a successful pregnancy. Yet, there is a paucity of comprehensive data investigating the systemic immune changes within the same individual transitioning from the non-pregnant to pregnant state. (more…)
Author Interviews, Heart Disease / 06.11.2023

MedicalResearch.com Interview with: Prakriti Gaba, MD Cardiovascular Medicine Fellow Brigham and Women's Hospital Deepak L. Bhatt MD MPH Director of Mount Sinai Fuster Heart Hospital Dr. Valentin Fuster Professor of Cardiovascular Medicine Icahn School of Medicine at Mount Sinai MedicalResearch.com: What is the background for this study?  Response: Accurate classification of acute myocardial infarction is instrumental for the appropriate diagnosis and effective management of patients suffering from this widely prevalent cardiovascular condition. In the past, there have been a variety of clinical scores published to advise clinicians on the best classifications schemes for patients with acute MI. These have included the Thrombolysis in Myocardial Infarction (TIMI) risk score, the HEART score, and the Killip classification. The strength of these traditional scores includes their practicality, as they can be implemented at the bedside to rapidly assist with prognostication. Nonetheless, as technologic advancements have made imaging and tissue identification more accessible, national and international committees are looking to revise traditional classification schemes of acute MI with novel ones leveraging multimodal approaches. (more…)
Author Interviews, Eli Lilly, Gastrointestinal Disease, NEJM / 02.11.2023

MedicalResearch.com Interview with: Marla C. Dubinsky, MD Professor of Pediatrics and Medicine Icahn School of Medicine at Mount Sinai Co- director, Susan and Leonard Feinstein IBD Clinical Center Mount Sinai Health System MedicalResearch.com: What is the background for this study? Would you briefly describe the condition of UC? Response: Lucent 1 and Lucent 2 were the induction and maintenance registration trials studying the efficacy and safety of mirikizumab in patients 18 years and older with moderate to severely active ulcerative colitis. Mirikizumab is a monoclonal antibody targeting the p19 subunit of IL23. Lucent-3 is the open label extension arm for those meeting inclusion criteria after completing Lucent 2. This study evaluated the long term efficacy and safety of mirikizumab in patients with ulcerative colitis who completed a total of 104 weeks of active mirikizumab treatment. Ulcerative colitis is a chronic incurable inflammatory condition of colon. Common symptoms include diarrhea, blood in the stool, abdominal cramping and bowel urgency. Bowel urgency is one of the most burdensome symptoms that a patient with you could experience. (more…)
Author Interviews, Environmental Risks, Thyroid / 27.10.2023

MedicalResearch.com Interview with: Maaike van Gerwen, MD, PhD Assistant Professor Department of Otolaryngology- Head and Neck Surgery Institute for Translational Epidemiolog Director of Research Department of Otolaryngology- Head and Neck Surgery Icahn School of Medicine at Mount Sinai MedicalResearch.com: What is the background for this study? Where are these PFAS chemicals found? Response: Over the past decades, we have seen an increasing trend in thyroid cancer which cannot be fully explained by increased use of medical imaging (including ultrasound). Certain environmental exposure are known to impact on the thyroid gland, including thyroid dysfunction or development of cancer. PFAS are chemicals that are known to disrupt the function of endocrine organs, such as the thyroid gland. We therefore hypothesized that PFAS exposure may be one of the potential risk factors for thyroid cancer and thus one of the potential reason for the increasing thyroid cancer incidence. PFAS chemicals are widespread in the environment and have been found in the soil, water, and air. PFAS are also widely used in a variety of consumer products including non-stick cookware, stain resisting fabric, firefighting foams, but are also found in drinking water and food. This leads to an almost universal exposure of the general population. (more…)
Author Interviews, Dermatology, Immunotherapy / 18.07.2023

MedicalResearch.com Interview with: Emma Guttman-Yassky, M.D., PhD, Lead investigator of this study Waldman Professor and System Chair Kimberly and Eric J. Waldman Department of Dermatology Icahn School of Medicine at Mount Sinai, NY   MedicalResearch.com: What is the background for this study? Response: The idea to test how spacing out treatment or even stopping it affects treatment responses once patients are well controlled. Lebrikizumab it is a potent biologic agent with a relatively long-lasting effect. (more…)
Author Interviews, Genetic Research / 21.03.2023

MedicalResearch.com Interview with: Ernest Turro, PhD Associate Professor Genetics and Genomics Sciences The Turro group runs a research program on statistical genomics, with a dual focus on rare diseases and blood-related traits at the Icahn School of Medicine Mount Sinai Health System   MedicalResearch.com: What is the background for this study? Would you describe the Rareservoir database? Response:   The main motivation for our work is that only half of the approximately 10,000 catalogued rare diseases have a resolved genetic cause (or aetiology). Patients with these diseases are unable to obtain a genetic diagnosis which could otherwise inform prognosis, treatment for themselves and affected relatives. One route towards resolving the remaining aetiologies is to enroll large numbers of rare disease patients into research studies so that statistical analyses can be performed comparing the genetic with the clinical characteristics of the study participants. One major endeavour, the 100,000 Genomes Project (100KGP), sequenced the genomes and collected clinical phenotype data for 34,523 UK patients and 43,016 unaffected relatives across 29,741 families. The scale of this study is unprecedented, partly thanks to the ever-decreasing cost of DNA sequencing (25 years ago, it cost $1bn to sequence a whole genome, while now it costs only a few hundred dollars). Working with such large datasets is notoriously cumbersome. To overcome this, we developed a computational approach (the Rareservoir) that distills the most important information into a relatively small database, allowing us to apply our statistical methods nimbly. We noted that the "genetic variants" that cause rare diseases are typically kept rare in the human population by natural selection because affected individuals tend to have few children, if any. This meant that we could discard the genetic information corresponding to variants that are common in the human population without throwing away the key disease-causing variants. By focussing on these "rare variants", we were able to perform our analyses using a small database (a `Rareservoir’), only 5.5GB in size, hastening our progress significantly. (more…)
Author Interviews, Heart Disease, JACC, Kidney Disease, Transplantation / 21.02.2023

MedicalResearch.com Interview with: Shinobu Itagaki, MD, MSc Assistant Professor Cardiovascular Surgery Icahn School of Medicine at Mount Sinai, New York, NY MedicalResearch.com: What is the background for this study? Were the transplants from a single donor? Response: The heart transplantation is the gold standard therapy for end-stage heart failure patients. As the kidney is affected by the heart function, it is common that the heart transplant candidates have some degree of kidney dysfunction as well. In these cases, the candidates are considered for simultaneous heart and kidney transplantation from a same donor. Unlike isolated heart transplantation, where the indication and benefits have been well established, simultaneous heart and kidney transplantation has less clear indication and benefits. This uncertainty is also complicated by the competing interest with isolated kidney transplantation candidates who in general wait longer on the waiting list. (more…)
Author Interviews, Diabetes, NEJM / 09.02.2023

MedicalResearch.com Interview with: Brian S Kim, MD, MTR Sol and Clara Kest Professor Vice Chair of Research | Site Chair, Mount Sinai West and Morningside Director, Mark Lebwohl Center for Neuroinflammation and Sensation The Kimberly and Eric J. Waldman Department of Dermatology Precision Immunology Institute | Friedman Brain Institute Icahn School of Medicine at Mount Sinai MedicalResearch.com: What is the background for this study? Response: We generated preliminary data in mice that difelikefalin suppresses itch robustly with very little to no effect on inflammation in a model of atopic dermatitis. This led us to hypothesize that the primary mode of action of difelikefalin must be by direct modulation of sensory neurons to suppress itch and thus would be best suited for a neuropathic itch condition. These are conditions in which itch occurs relatively independently of skin inflammation as in atopic dermatitis due to hyperactive nerves. (more…)
Author Interviews, Cancer Research, Colon Cancer, Genetic Research, Nature / 18.10.2022

MedicalResearch.com Interview with: Royce Zhou, MD/PhD Candidate Icahn School of Medicine at Mount Sinai MedicalResearch.com: What is the background for this study? Response: The background of this story is to see whether things outside of the cancer cell, such as the tumor microenvironment, can lead to epigenetic changes within the cancer cell. These changes are largely believed to be due to factors inside the cell, not outside. Super-enhancers are the top 1-2% of enhancers in the genome. They control cell identity genes and oncogenes in cancer. (more…)
Author Interviews, Cancer Research, JAMA / 06.09.2022

MedicalResearch.com Interview with: Samir Parekh, MBBS Hematology-Oncology, Cancer Director of Translational Research in Myeloma and Co-leader of the Cancer Clinical Investigation program The Tisch Cancer Institute Icahn School of Medicine at Mount Sinai MedicalResearch.com: What is the background for this study? What are the main findings? Response: Clinical outcomes for myeloma patients patients have improved significantly over the past decade with the introduction and success of newer immunomodulatory treatments such as CART cell therapy and bispecific antibodies. Strategies are needed to determine the best treatment options for patients relapsing or unresponsive to initial courses of these types of therapies. We analyzed the outcomes of patients relapsing after bispecific antibody therapy for myeloma. Our data shows that sequencing of bispecific antibodies or CART after initial bispecific failure can effectively salvage patients and lead to excellent outcomes in myeloma. This provides the foundation for future studies combining this new class of immunotherapy with CART or additional bispecific antibodies to improve outcomes in myeloma. (more…)
Author Interviews, Cancer Research, COVID -19 Coronavirus, Race/Ethnic Diversity, Radiation Therapy / 01.11.2021

MedicalResearch.com Interview with: Brianna M. Jones, MD Radiation Oncology Resident Icahn School of Medicine at Mount Sinai MedicalResearch.com: What is the background for this study? Response: The COVID-19 pandemic has resulted in over 4 million deaths worldwide and, presently, there have been over 2 million cases diagnosed in New York. There have been numerous studies that demonstrate cancer patients are at increased risk of diagnosis and mortality to SARS-CoV-2 virus. Several studies have also noted socioeconomic status and race/ethnicity are associated with poorer outcomes. Within NYC, Elmhurst Hospital Center (EHC) emerged as an early epicenter in spring of 2020. The surrounding catchment area of EHC consists of a population that is 54% Latino, 33% Asian, 6% White, 4% Black, 1% Native American, and 1% other according to U.S. Census Bureau, making it one of the most racially and ethnically diverse populations in the country. Its residents are predominantly working-class immigrants with limited resources that work jobs now considered essential (e.g., delivery workers, grocery shops, et cetera). EHC continued to offer a range of cancer services throughout the pandemic. Given the high infection rate and diverse population at EHC, our study provides an opportunity to evaluate outcomes in one of the hardest hit communities to date. Therefore, our aim was to investigate patient characteristics, clinical outcomes, and predictors of COVID-19 diagnosis, severity, and mortality in patients with an active cancer diagnosis at EHC.  (more…)
Author Interviews, Cancer Research / 27.10.2021

MedicalResearch.com Interview with: Shoshana Rosenzweig Medical Student Icahn School of Medicine at Mount Sinai MedicalResearch.com: What is the background for this study? Would you briefly describe the Phantosmia phenomenon?  Response: Phantosmia is an olfactive disorder resulting in the perception of a foul-smelling odor without odorant stimulus. This study was spearheaded by Dr. Suzanne Wolden, a pediatric radiation oncologist and the senior author of the research. She noticed that patients receiving proton beam therapy were complaining of this phenomenon more than her patients receiving photon therapy. Through this research, the team hoped to characterize radiation treatment induced phantosmia in pediatric, adolescent and young adult patients treated with proton beam therapy and we hoped to identify potential clinical and treatment-related characteristics that may correlate with the development of phantosmia.  (more…)
Author Interviews, Cognitive Issues, COVID -19 Coronavirus, JAMA, Occupational Health / 24.10.2021

MedicalResearch.com Interview with: Jacqueline H. Becker, Ph.D. Clinical Neuropsychologist Associate Scientist Division of General Internal Medicine Icahn School of Medicine at Mount Sinai  MedicalResearch.com: What is the background for this study? What are the main findings? Response: This study leverages data being collected through the ongoing Mount Sinai Health System Post-COVID-19 Registry, which is led by Dr. Juan Wisnivesky, Professor of Medicine and Chief of the Division of General Internal Medicine at the Icahn School of Medicine at Mount Sinai and senior author of the study. Our study concluded that there may be long-term cognitive repercussions from COVID-19 that impact individuals in various age groups and across the spectrum of disease severity, although the frequency of cognitive impairment was highest among patients who were previously hospitalized for COVID-19.  (more…)
Author Interviews, Dermatology / 15.09.2021

MedicalResearch.com Interview with: Elena Ezhkova, PhD Professor, Department of Cell, Developmental, and Regenerative Biology Professsor, Dermatology Lab Head,The Black Family Stem Cell Institute Icahn School of Medicine at Mount Sinai New York Meng-Yen Li, PhD Postdoctoral Fellow The Black Family Stem Cell Institute MedicalResearch.com: What is the background for this study? Response: The epidermis is the primary barrier and the first line of defense to combat environmental stressors. The sun's ultraviolet (UV) is one of the main environmental stressors that our body is exposed to daily. UV produces DNA damage in epidermal cells and is a leading cause of skin cancers. To protect from the damaging effects of UV, epidermal cells become pigmented by melanocytes, pigment-producing cells. Taken up by epidermal cells, the melanin pigment absorbs UV light and reduces DNA damage. How the epidermis senses UV and how it leads to epidermal pigmentation is poorly understood. (more…)
Author Interviews, Cancer Research, Gastrointestinal Disease, Genetic Research / 03.05.2021

MedicalResearch.com Interview with: Judy H. Cho, MD, Dean of Translational Genetics Director of The Charles Bronfman Institute for Personalized Medicine Icahn School of Medicine at Mount Sinai MedicalResearch.com: What is the background for this study? Would you briefly describe Crohn's disease? Whom does it primarily affect? Response: Crohn’s disease is a chronic inflammatory intestinal disease, which affects ~3 million Americans a year. Its most typical age of onset ranges from 15-30 years, and many of those diagnosed also exhibit frequent abnormal healing and complications that constrict the digestive tract. The highest risk genetic mutations that increase risk for Crohn’s disease are found in the gene NOD2; these were first reported 20 years ago. Biological mechanisms by which NOD2 mutations drive Crohn’s disease, and especially fibrotic complications, have been incompletely described up until this point. Further, the reasons why many patients fail to respond to the commonly administered anti-TNF treatments also remain incompletely understood. (more…)
Author Interviews, Cancer Research, Hepatitis - Liver Disease, Race/Ethnic Diversity / 25.02.2021

MedicalResearch.com Interview with: Andrea D. Branch PhD Professor of Medicine Division of Liver Diseases Associate Professor of Surgery Icahn School of Medicine at Mount Sinai MedicalResearch.com: What is the background for this study? Response: Liver cancer is a deadly condition with a high mortality rate. About 90% of people who develop liver cancer have cirrhosis (advanced liver scarring) due to a chronic underlying liver disease. Patients with cirrhosis are advised to undergo liver cancer surveillance. Early detection improves survival, but diagnosis requires more than a blood test, which makes surveillance complex and expensive. Black individuals are more likely to develop liver cancer than white individuals and are more likely to die from it. Black patients also have more advanced liver cancer at the time of diagnosis than Whites. We aimed to identify additional factors that distinguish liver cancer in African Americans, focusing on patients with hepatitis C virus infection, the most common chronic liver disease in people who die from liver cancer in the United States. (more…)
Author Interviews, Leukemia, Stem Cells, Technology / 11.02.2021

MedicalResearch.com Interview with: Eirini Papapetrou, MD, PhD Associate Professor Department of Oncological Sciences Icahn School of Medicine at Mount Sinai New York, NY 10029 MedicalResearch.com: What is the background for this study? Would you tell us a little about acute myeloid leukemia? Response: Acute myeloid leukemia is a form of cancer of the blood. It is typically very aggressive and lethal without treatment. The main treatment is high-dose chemotherapy and it has not changed very much in decades. Some more recent "targeted" therapies that are less toxic help somewhat but still do not result in cures. We believe a reason for this might be that both chemotherapy and newer "targeted" therapies target the cells at the later stages of the disease and spare the earlier ones, which can then give rise to disease resistance and relapse.  (more…)
Author Interviews, Cancer Research, Immunotherapy / 17.12.2020

MedicalResearch.com Interview with: Joshua Brody MD Director, Lymphoma Immunotherapy Program Icahn School of Medicine at Mount Sinai Hess Center for Science and Medicine New York, New York 10029 MedicalResearch.com: What is the background for this study?   Response: Cancer Immunotherapies target "antigens" on the surface of cells. -CAR-T cells targets antigens e.g. CD19 -Bispecific antibodies target antigens e.g. CD20 -Anti-PD1 antibodies awaken T cells that target antigens on e.g. MHC-I Cancer Immunotherapies frequently fail because a small percent of tumor cells simply lack the antigen and cause cancer relapse ('Antigen Escape') (more…)
Author Interviews, COVID -19 Coronavirus, OBGYNE / 13.12.2020

MedicalResearch.com Interview with: Sheela Maru, MD, MPH Department of Health System Design and Global Health and Arnhold Institute for Global Health and Department of Obstetrics, Gynecology and Reproductive Science Icahn School of Medicine at Mount Sinai MedicalResearch.com: What is the background for this study? Response: Universal screening for SARS-CoV-2 infection on Labor and Delivery (L&D) units is a critical strategy to manage patient and health worker safety, especially in a vulnerable high-prevalence community. We describe the results of a SARS-CoV-2 universal screening program at the L&D Unit at Elmhurst Hospital in Queens, NY, a 545-bed public hospital serving a diverse, largely immigrant and low-income patient population and an epicenter of the global pandemic. (more…)
Author Interviews, Cancer Research, Genetic Research / 01.12.2020

MedicalResearch.com Interview with: Nina Bhardwaj MD PhD Director of Immunotherapy Tisch Cancer Institute Icahn School of Medicine at Mt Sinai Ward-Coleman Chair in Cancer Research Professor of Hematology and Oncology MedicalResearch.com: What is the background for this study? Response: Neoantigens are novel antigens expressed by tumors as a result of somatic mutations or frame shift mutations. They can be very immunogenic and consequently they are being incorporated into cancer vaccine platforms. In most cases it is necessary to determine each patient’s individual mutations and customize their vaccine antigens accordingly. We sought to identify shared mutations in cancer antigens which are deficient in DNA repair mechanisms namely microsatellite unstable tumors. These tumors have mutations in genes that normally are responsible for ensuring that DNA is properly replicated. Because these genes encode proteins that ensure proper repair around micro-satellite areas (which contain short repeated sequences of DNA and are present in similar regions from one person’s genome to the next), when they are mutated, these regions may not be repaired. Consequently due to nucleotide deletions and insertions one gets frame shift mutations which result in new protein expression which can be shared across tumors, as has been observed for a few regions. We therefore did a comprehensive study of a subset of tumors to determine the breadth of shared frame shift mutations. (more…)
Author Interviews, Melanoma, Vaccine Studies / 16.11.2020

MedicalResearch.com Interview with: Nina Bhardwaj MD, PhD Professor of Medicine (Hematology and Medical Oncology) and Urology Tisch Cancer Institute Icahn School of Medicine at Mount Sinai New York, NY MedicalResearch.com: What is the background for this study? What types of cancer may be amenable to this vaccine? Response: The goal was to determine if vaccine responses could be improved by increasing special white cell numbers, namely dendritic cells, which are key for jumpstarting an immune response. MedicalResearch.com: What are the main findings?  Response: We found that the agent flt3-L mobilized these dendritic cells which help to improve the vaccine’s ability to prime the immune system.  (more…)
Author Interviews, Genetic Research / 16.11.2020

MedicalResearch.com Interview with: Philippe M Soriano, PhD Professor,  Cell, Developmental & Regenerative Biology and Oncological Sciences Icahn School of Medicine at Mount Sinai MedicalResearch.com: What is the background for this study? Response: The study was performed primarily to help understand how signals sent from growth factors to their receptors on the cell surface (see reply to the following question) initiate a cascade of events within the cells that lead to proliferation, survival, or other biological responses. This is important to know because deregulation of many of these pathways can lead to cancers. MedicalResearch.com: Would you explain what is meant by FGFs and their interaction with RTKs? Response: FGFs are cell signaling proteins that are also known as growth factors because they often lead to cell proliferation. They act by binding to receptors on the cell surface that are part of a family of receptor tyrosine kinases (RTKs). These RTKs are transmembrane proteins that have a domain outside of the cell that binds to the growth factor and a domain within the cell that has tyrosine kinase activity, hence the name “receptor tyrosine kinase (RTK).” This enzymatic activity adds a phosphate to a tyrosine residue of target proteins and starts a typical signal transduction pathway (referred to in the paper as “canonical”) leading to the usual biological responses (proliferation, survival, migration, etc.) (more…)
Author Interviews, Cancer Research / 10.11.2020

MedicalResearch.com Interview with: Brianna M. Jones, MD Icahn School of Medicine at Mount Sinai New York, NY MedicalResearch.com: What is the background for this study? Response: Oral tongue cancer has traditionally been a diagnosis associated with older age and habitual tobacco or alcohol use. However, in the past few decades there has been a disproportionate increase in oral tongue cancer in young patients, particularly in those without a prior history of significant alcohol or tobacco use. In the literature, these young patients without traditional risk factors seem to represent a distinct clinical entity with worse oncologic outcomes. The purpose of this study was to compare young patients (age ≤45) to older patients (>45) with oral tongue squamous cell carcinoma (OTSCC) without habitual smoking or drinking history.  (more…)