Sharad Ramanathan

Sharad Ramanathan is the Llura and Gordon Gund Professor of Neurosciences and of Molecular and Cellular Biology at Harvard University, with a dual appointment as Professor of Applied Physics and of Stem Cell and Regenerative Biology in the John A Paulson School of Engineering and Applied Sciences. He serves as Principal Investigator of the Ramanathan Lab and is Co-Director of the Quantitative Biology Initiative.

His research focuses on understanding how cells and organisms process environmental signals to make developmental decisions, particularly in the context of human development and stem cell morphogenesis. Ramanathan employs a multidisciplinary approach combining stem cell and molecular biology, genomics, bioengineering, and computational biology to investigate these fundamental biological processes.

His lab recently achieved a groundbreaking discovery in controlling stem cell colony arrangements to reliably produce embryonic body plans, with 99% of colonies developing proper anterior-posterior axes. This work, which uses hexagonal arrangements of stem cell colonies, has been described as revolutionary for mimicking mammalian embryogenesis in vitro.

Ramanathan's publications reveal a strong focus on developmental dynamics, with recent work emphasizing human organoid systems, stem cell differentiation, neural circuit mapping, and the computational analysis of cellular decision-making processes. His research bridges physics, engineering, and biology to tackle fundamental questions in developmental biology.

As an educator, he teaches MCB198 Mathematical Techniques for Modern Biology and Applied Physics 286 / Physics 286 Inference, Information Theory, Learning and Statistical Mechanics, demonstrating his commitment to quantitative approaches in biological sciences.

The Ramanathan Lab has made significant contributions to understanding stem cell differentiation, embryonic development, and neural circuit organization, with work that has important implications for regenerative medicine and understanding developmental disorders.