The Hematopoietic Stem Cell Niche and Implications for Clinical Transplantation
Sean Morrison, Ph.D., from the Children’s Medical Center Research Institute at UT Southwestern, investigates how stem cells function, regenerate, and interact with their surrounding environment in the bone marrow. His research reveals how leptin receptor-positive cells—key components of the bone marrow niche—regulate hematopoietic stem cell maintenance and regeneration, influence platelet production, and respond to physiological stress like pregnancy. Morrison uncovers a reciprocal relationship between these niche cells and peripheral nerves, showing that disrupting nerve signals impairs bone marrow recovery after chemotherapy or radiation. His work also links retrotransposon activation during pregnancy to increased red blood cell production, with implications for maternal health and transplant medicine. Series: "Stem Cell Channel" [Health and Medicine] [Science] [Show ID: 40449]
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Cellular Reprogramming in Human Disease
Deepak Srivastava, MD, explores how cellular reprogramming offers new hope for treating heart disease. He highlights innovative strategies to regenerate damaged heart tissue by stimulating adult cardiomyocytes to divide and converting fibroblasts into heart-like cells. His team develops a nonviral delivery system using lipid nanoparticles and investigates the role of specific gene regulators in restoring heart function in animal models. Srivastava also discusses a potential oral therapy for aortic valve disease, driven by insights into cellular fate changes caused by NOTCH1 mutations and telomere shortening. Additionally, he reveals how trisomy 21 may trigger congenital heart defects by altering the identity of specialized heart cells. Through pioneering research in genetics and regenerative medicine, Srivastava demonstrates how understanding developmental biology can lead to transformative clinical advances. Series: "Stem Cell Channel" [Health and Medicine] [Science] [Show ID: 40447]
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Why Research Funding Matters: A Patient Perspective
Kimberly Peters, a stage four uterine cancer patient at UC San Diego Health, urges government leaders not to cut science funding. She warns that reduced federal support risks delaying vital research and life-saving cures. [Health and Medicine] [Show ID: 41071]
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One Doctor's Journey Through the AIDS Epidemic
On his very first day at San Francisco General Hospital, Dr. Paul Volberding met his first AIDS patient – a moment that shaped his career and left an indelible mark on the fight against an epidemic. Now, more than 40 years later, Volberding reflects on the creation of Ward 86, the nation’s first HIV clinics, and how UCSF’s compassionate, community-first approach redefined HIV/AIDS care worldwide. The work of Volberding and UCSF’s dedicated clinicians and scientists laid the foundation for advancements that continue to save lives today. [Health and Medicine] [Show ID: 40986]
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Neuromodulation Pharmacogenetics and Imaging: Biological Approaches to Tailoring Therapy
As part of the 2025 Developmental Disabilities Conference, Dr. Elysa Marco talks about various biological approaches to therapy. Series: "Developmental Disabilities Update" [Health and Medicine] [Show ID: 40623]
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