Weissman Lab

Questions about biology, human health, and disease from area students answered by Whitehead Institute scientists in our Ask a Scientist series. Watch the latest Ask a Scientist video or learn more at BioNook.

Jaspreet Sandhu is a postdoc in Whitehead Institute Member Jonathan Weissman’s lab studying how the genetics of individual cells determine their behaviors within the liver. He is also a gastroenterologist at Massachusetts General Hospital. We sat down with Jaspreet to learn more about him and his experiences in and out of the lab.

In order for researchers to understand the biology of living organisms, they must consider what is happening across the size scale. Interactions between molecules drive interactions between cells that affect traits and behaviors. Experiences and decisions made by the organism can lead to changes at the cellular and molecular level. In order to understand the full picture, Whitehead Institute researchers study everything from molecules to cells to whole organisms.

Researchers at Whitehead Institute are employing cutting-edge techniques that combine layers of data — from the function of individual genes to the interactions of all molecules within a living organism — to investigate biological phenomena with unprecedented depth and breadth. Their efforts are yielding a richer understanding of the mechanisms involved in health and disease.

Whitehead Institute graduate student researchers Christopher Giuliano and Julian Roessler have been awarded the 2024 Regeneron Prize for Creative Innovation. In addition, postdoctoral researcher Chen Weng was selected as a finalist in the postdoctoral fellows competition.

From how genes are regulated, to how cells transport important cargo — there are many biological processes that work similarly across organisms, and are versatile in their function. Click here to watch a video on how Whitehead Institute researchers are finding ways to tailor existing biological processes to expand the potential to address complex problems.

Whitehead Institute Member Jonathan Weissman and collaborators have developed a gene-silencing tool that shows promise as a therapy against fatal prion diseases. The tool, a streamlined epigenetic editor, paves the way for a new class of genetic approaches to treat certain diseases.

Endowed chairs are generally created through philanthropic gifts from individual donors, organizations, or groups of donors honoring a specific person. The chairs — of which Whitehead Institute currently has five — provide steady, predictable funding to support investigations in Members’ labs.

Changes in DNA and gene function are the engines that drive evolution. These seemingly small modifications in an organism’s evolutionary journey ultimately dictate its fate —  deciding which traits will be safeguarded and transmitted through generations, and which new traits will emerge. Whitehead Institute researchers are studying how organisms sharing a common ancestor develop unique traits over time, diverging from one another. These traits — encoded in the genes — impact their chances of survival and reproduction.