Miriam Merad, MD, PhD
Researchers at The Tisch Cancer Institute have uncovered an intriguing mechanism that may help explain why radiation therapy eradicates cancerous tumors in some patients but not in others.
Their study, reported in the September 7, 2015, issue of Nature Immunology, examined how special skin immune cells, known as Langerhans cells, perform in mice models of melanoma. Read more
The Mount Sinai Genetic Testing Lab, housed in the Department of Genetics and Genomic Sciences and led by Executive Director Lisa Edelmann, worked closely with clinical geneticists who see patients for rare diseases, as well as the bioinformatics team at the Icahn Institute for Genomics and Multiscale Biology at Mount Sinai, to create a line of new tests that help inform couples of their risk of having a child with a genetic disorder. Read more
Bruce D. Gelb, MD
An exciting development in birth defects research emerged in 2015! In 2013, Gabriella Miller, a young girl dying from cancer, called upon the U.S. Congress for “less talking, more doing…We need action.” This stimulated Congress to pass the Gabriella Miller Kids First Research Act in 2014, which authorized $12.6 million/year for 10 years toward pediatric research. In implementing this mandate, the National Institutes of Health (NIH) decided to use the 2015 funds for performing whole genome sequencing (WGS) for certain childhood cancers and, of relevance here, for structural birth defects. Read more
Joseph D. Buxbaum, PhD
Joseph D. Buxbaum, PhD, a pioneering researcher in the field of autism, recently was elected to the National Academy of Medicine, considered one of the highest honors in medicine. New members are elected annually by current active members through a selective process that recognizes individuals who have made major contributions to advance medical sciences, health care, and public health.
A world-renowned molecular geneticist and neurobiologist, Dr. Buxbaum is Professor and Vice Chair for Research in the Department of Psychiatry, and Director of the Seaver Autism Center for Research and Treatment at Icahn School of Medicine at Mount Sinai. He is also Professor of Neuroscience, and Genetics and Genomic Sciences, and the G. Harold and Leila Y. Mathers Research Professor of Geriatrics and Adult Development. Read more
Previous studies have shown that there is a clear relationship between physical activity and higher bone mineral density (BMD). Exercise and the force that muscle contraction applies to bone improve skeletal health by stimulating the formation of new bone. Conversely, off-loading muscle, such as in astronauts, can lead to bone loss and an increased fracture risk. But the question of how muscle function regulates bone mass has remained largely unresolved despite their close anatomical proximity. A key question is whether muscle contraction connects to bone mass regulation through a secreted molecule. Read more
Mark Lebwohl, MD
The results of a multicenter clinical trial led by Mount Sinai Health System researchers and published in The New England Journal of Medicine on October 1, 2015, demonstrate that brodalumab, an experimental biologic treatment for plaque psoriasis, achieved 100 percent reduction in psoriasis symptoms in twice as many patients as a second, commonly used treatment. Read more
The Department of Anesthesiology at the Mount Sinai Health System
Repeated exposure to anesthesia early in life causes changes in emotional behavior that may persist long-term, according to new research from the Icahn School of Medicine at Mount Sinai.
The findings, published in the August 2015 Online First edition of Anesthesiology, mark the first time nonhuman primates have been found to experience long-term behavioral changes resulting from repeated postnatal exposure to anesthesia. Prior results have shown that baby rodents also experience cognitive impairments later in life stemming from early anesthesia exposure. Read more
Leticia Tordesillas, PhD
Leticia Tordesillas, PhD, and Elizabeth Heller, PhD, are the recipients of the 2015 Robin Chemers Neustein Postdoctoral Fellowship Award, which was created to encourage and support female research scientists at Icahn School of Medicine at Mount Sinai.
Dr. Tordesillas works in the laboratory of Cecilia Berin, PhD, Associate Professor of Pediatrics. Her research is focused on how to establish immune tolerance to foods for the treatment of food allergy. In particular, she is studying how regulatory T cells induced by epicutaneous immunotherapy are generated and suppress anaphylaxis. Read more
In a screen of more than 100,000 potential drugs, only one, harmine, drove human insulin-producing beta cells to multiply, according to a study led by researchers at the Icahn School of Medicine at Mount Sinai, published in Nature Medicine.
Diabetes results from too few insulin-producing “beta cells” in the pancreas secreting too little insulin, the hormone required to keep blood sugar levels in the normal range. In a groundbreaking Mount Sinai study, researchers found that harmine drove the sustained division and multiplication of adult human beta cells in culture, a feat that had eluded the field for years. In addition, harmine treatment tripled the number of beta cells and led to better control of blood sugar in three groups of mice engineered to mimic human diabetes. Read more
Andrew Stewart, MD, the Irene and Dr. Arthur M. Fishberg Professor of Medicine and Director of Mount Sinai’s Diabetes, Obesity and Metabolism Institute led a team of scientists who discovered a novel mechanism that regulates the replication of insulin-producing beta cells in the pancreas. Their findings provided novel working models describing the control of cell cycle progression in the human beta cell. These discoveries offer new insights into possible therapeutic approaches to stimulate the regeneration of pancreatic beta cells in patients with Type 1 and Type 2 diabetes. Read more