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Updated: Aug 8, 2026

Lighting Up the Pathways to Caspase Activation Using Bimolecular Fluorescence Complementation
Published on: March 5, 2018
From PTK-STAT signaling to caspase expression and apoptosis induction
1Department of Pathology, Yale University School of Medicine, New Haven, Connecticut, CT 06520, USA. xin-yuan.fu@yale.edu
Abstract:
The cell growth and survival can be regulated by cytokine induced signals. Nevertheless, the molecular mechanisms of signal transduction from cytokine receptors to mediators of cell growth and apoptosis are not well characterized. STAT (signal transducer and activator of transcription) proteins can be activated by protein tyrosine kinases (PTK) in response to a variety of cytokines. We have shown that STAT activation induces expression of caspases which may cause cells undergo apoptosis. A hypothesis is proposed that PTKSTAT signaling pathways can regulate induction of apoptosis in response to cytokines and other extracellular signals.
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