News and Events

Programs and providers of Obstetrics and Gynecology at Weill Cornell Medicine are often the focus of news stories and features appearing in major national media. We invite you to review some stories that typify the breakthrough accomplishments of our remarkable team and highlight the impact our care has had on patient’s lives.

Immune Tolerance to Gut Microbes Is Initiated by a Key Bacterial Sensor

purple and pink stained intestinal cells

Thousands of bacterial and other microbial species live in the human gut, supporting healthy digestion, immunity, metabolism and other functions. Precisely how these microbes are protected from immune attack has been unclear, but now a study led by Weill Cornell Medicine investigators has found that this immune “tolerance” to gut microbes depends on an ancient bacterial-sensing protein called STING—normally considered a trigger for inflammation. The surprising result could lead to new treatments for inflammatory bowel disease and other conditions involving gut inflammation.

In their study, reported June 16 in Immunity, the investigators focused on group 3 innate lymphoid cells (ILC3s), immune cells that dwell in the mucosal lining of the gut. Their previous research revealed ILC3s’ essential role in preventing immune attacks on gut bacteria. In the new study, they showed that this crucial function in ILC3s depends on STING—such that moderate STING signaling induces immune tolerance, whereas higher levels of STING signaling cause the deaths of ILC3s and the loss of tolerance.

Dr. Teresa Sanchez Awarded the Established Investigator Award from the American Heart Association

Teresa Sanchez

Dr. Teresa Sanchez, associate professor of pathology and laboratory medicine and associate professor of neuroscience in the Feil Family Brain and Mind Research Institute at Weill Cornell Medicine, has been awarded the highly competitive Established Investigator Award from the American Heart Association.

The five-year, $550,000 grant supports mid-career investigators who have made impactful contributions to cardiovascular science and who demonstrate exceptional potential for continued innovation. Dr. Sanchez is investigating how dysfunction in the cerebral vasculature, the blood vessels of the brain, can contribute to strokes and dementia, conditions currently affecting more than 150 million people worldwide.

Early in her career, Dr. Sanchez noticed that the cerebral vasculature was often overlooked in conversations about brain health despite its fundamental role in supplying blood and oxygen to the brain. She has since dedicated her career to understanding the molecular mechanisms driving cerebrovascular dysfunction, work that is essential for developing novel effective therapies to prevent or treat these devastating diseases.

Mapping the Connections Between the Brain’s Structure and Function

brain connectomes

Using an algorithm they call the Krakencoder, researchers at Weill Cornell Medicine are a step closer to unraveling how the brain’s wiring supports the way we think and act. The study, published June 5 in Nature Methods, used imaging data from the Human Connectome Project to align neural activity with its underlying circuitry.

Mapping how the brain’s anatomical connections and activity patterns relate to behavior is crucial not only for understanding how the brain works generally but also for identifying biomarkers of disease, predicting outcomes in neurological disorders and designing personalized interventions.

Addressing the Elephant in the Room

The brain consists of a complex network of interconnected neurons whose collective activity drives our behavior. The structural connectome represents the physical wiring of the brain, the map of how different regions are anatomically connected. The other piece of the puzzle is the functional connectome, which represents patterns of neuronal activity between different parts of the brain, highlighting regions that activate together during specific tasks or at rest. Surprisingly, scientists have found that regions that are “wired together” don’t always “fire together.”