In this special episode recorded live in Seattle, Washington at the Allen Institute for the Early Career Development Symposium. Dr. Crystal Rogers, Associate Professor at the UC Davis School of Veterinary Medicine, and Dr. Ariel Waisman, CONICET Investigator at FLENI in Argentina, explore the unique career transitions and systemic challenges faced by early-career scientists. They discuss overcoming imposter syndrome, navigating funding cuts, and adapting to new leadership responsibilities. Emphasizing the importance of strong mentorship, scientific communication, and community, they highlight how peer support and resilience are essential for sustaining scientific progress in today’s economic landscape.

Photo Reference: Courtesy of Drs. Crystal Rogers and Ariel Waisman

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Dr. Lika Drakhlis is a Junior Group Leader at Hannover Medical School. She discusses how her lab uses human pluripotent stem cells to develop complex, multi-tissue organoids that model the co-development of the heart, vasculature, and foregut. She also explores how these models reveal the spatial organization and cellular interactions that shape early heart development, and how they can be used to study congenital disease and develop more human-relevant alternatives to animal models.

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Building a Human–Mouse Cortex – Human cortical organoids extensively integrate into the mouse brain, forming functional neural circuits that enable behavioral studies of human neurodevelopment and disease.

Connecting the Central and Peripheral – Self-organizing neural organoids recreate the coordinated development of the spinal cord and peripheral sensory nervous system, enabling studies of development, disease, and drug effects.

Tracing the Brain’s Origins – Lineage tracing and stem cell models reveal two distinct neural progenitors that separately give rise to the forebrain/midbrain and hindbrain.

Engineering Stem Cells for Bone – A first-in-human trial suggests that engineering patients’ own mesenchymal stem cells to better home to bone may provide a safe and durable approach to treating osteoporosis.

Photo Reference: Courtesy of Dr. Lika Drahklis

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Dr. Yonatan Stelzer is a Principal Investigator at the Weizmann Institute of Science. He discusses how his lab combines developmental biology, epigenetics, and single-cell technologies to understand how cells acquire distinct identities during embryonic development. He also explores building quantitative models that track development across space and time, how extracellular signals and epigenetic mechanisms shape cell fate, and the opportunities and limitations of using AI to uncover the underlying logic of biology.

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Stem Cells Drive Spinal Stenosis – Researchers identified tendon/ligament stem cells and showed that their abnormal differentiation contributes to ligament thickening and lumbar spinal stenosis.

Building Better Bones – Engineered vascularized callus organoids act as temporary biological templates that promote blood vessel formation and regeneration of large bone defects.

Regenerating Beta Cells – Loss of ALDH3B2 converts human pancreatic duct cells into insulin-producing β-like cells capable of improving blood glucose in diabetic mice.

Controlling Organ Size – A Hippo–IGF2 signaling pathway controls organ growth and liver regeneration, with IGF2 restoring impaired regenerative capacity in aged mice.

Photo Reference: Courtesy of Dr. Yonatan Stelzer

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