Stem Cells

Whitehead Institute researchers have created a complete catalog of genes active in the planarian eye. Several identified genes are known to have versions that play a role in the vertebrate eye, including genes involved in eye development and others associated with age-related macular degeneration and Usher syndrome, a disorder that causes progressive retinal degradation.

By irradiating typical polystyrene lab plates with ultraviolet (UV) waves, Whitehead Institute and MIT scientists have created a surface capable of tripling the number of human embryonic stem (ES) and induced pluripotent stem (iPS) cells that can be grown in culture by current methods.

New findings by scientists at the Broad Institute of MIT and Harvard and Whitehead Institute point to a decentralized society in tumors, with cancer cells able to interconvert between different types. These results have potential implications for the treatment of tumors, in particular, that attacking cancer stem cells alone may not be enough to fight cancer.