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Cell growth usually refers to cell proliferation, the increase in cell numbers that occurs through repeated cell division. Cell growth can also refer to the enlargement of cell volume, which can take place in the absence of cell division.
The 2017 Albert Lasker Basic Medical Research Award was awarded to Michael N. Hall (Biozentrum, University of Basel, Switzerland) “for discoveries concerning the nutrient-activated TOR proteins and their central role in the metabolic control of cell growth”.
The Hippo pathway responds to environmental factors including nutrient availability, cell density and substrate stiffness to regulate organ size. This pathway is now shown to also regulate antiviral defence by modulating the TBK1-mediated control of interferon production.