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Updated: Oct 21, 2026
![Chemical-Induced Skin Carcinogenesis Model Using Dimethylbenz[a]Anthracene and 12-O-Tetradecanoyl Phorbol-13-Acetate (DMBA-TPA)](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F60445.jpg&w=3840&q=50)
Chemical-Induced Skin Carcinogenesis Model Using Dimethylbenz[a]Anthracene and 12-O-Tetradecanoyl Phorbol-13-Acetate (DMBA-TPA)
Published on: December 19, 2019
Functional role of the second messengers PtdIns(3,4,5)P3 and PtdIns(3,4)P2 in carcinogenesis
Nina Nelson1,2, Manfred Jücker1
1Center for Experimental Medicine, Institute of Biochemistry and Signal Transduction, University Medical Center Hamburg-Eppendorf, Martinistraße 52, D-20246 Hamburg, Germany.
Abstract:
PtdIns(3,4,5)P3 and PtdIns(3,4)P2 are second messengers and key regulators of tumorigenesis. Their production and degradation are spatiotemporally regulated by a network of phosphoinositide kinases and phosphatases which is frequently altered in cancer. Both molecules serve as docking and activation sites for PH-domain containing effector proteins regulating oncogenic traits. This review will detail the proteins and pathways involved in the upstream regulation and downstream functions of PtdIns(3,4,5)P3 and PtdIns(3,4)P2. In addition, it will cover the spatiotemporal distribution of these two PtdIns and relevant analysis techniques.
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