In the News
![Molecular biologist Ken Marians and cell biologist Michael Overholtzer](https://www.sloankettering.edu/sites/default/files/styles/width_200/public/node/165589/3x2/gsk_3_1200x800.jpg)
MSK’s Graduate School Welcomes New Dean, Bids Farewell to Its First
Cell biologist Michael Overholtzer will succeed DNA replication expert Ken Marians.
![Cell Biologist Michael Overholtzer](https://www.sloankettering.edu/sites/default/files/styles/width_200/public/node/5862/image/515463.jpg)
At Work: Cell Biologist Michael Overholtzer
Cell biologist Michael Overholtzer explores genes that make normal cells turn cancerous, which could one day could prove useful for treating cancer.
Decoder
![Pictured: Liver Cells](https://www.sloankettering.edu/sites/default/files/styles/width_200/public/node/30129/image/apoptosis.jpg)
What Is Apoptosis?
Cell biologist Michael Overholtzer explains apoptosis, a form of programmed cell death that can lead to cancer when it doesn’t function properly.