c-Src Promotes Tumorigenesis and Tumor Progression by Activating PFKFB3

Huanhuan Ma, Jia Zhang, Lin Zhou, Shixiong Wen, Hsiang Yu Tang, Bin Jiang, Fengqiong Zhang, Muhammad Suleman, Dachao Sun, Ai Chen, Wentao Zhao, Furong Lin, Ming Tong Tsau, Lu Min Shih, Changchuan Xie, Xiaotong Li, Donghai Lin, Li Man Hung*, Mei Ling Cheng, Qinxi Li

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

57 Scopus citations

Abstract

Reprogramming of glucose metabolism is a key event in tumorigenesis and progression. Here, we show that active c-Src stimulates glycolysis by phosphorylating (Tyr194) and activating PFKFB3, a key enzyme that boosts glycolysis by producing fructose-2,6-bisphosphate and activating PFK1. Increased glycolysis intermediates replenish non-oxidative pentose phosphate pathway (PPP) and serine pathway for biosynthesis of cancer cells. PFKFB3 knockout (KO) cells and their counterpart reconstituted with PFKFB3-Y194F show comparably impaired abilities for proliferation, migration, and xenograft formation. Furthermore, PFKFB3-Y194F knockin mice show impaired glycolysis and, mating of these mice with APCmin/+ mice attenuates spontaneous colon cancer formation in APCmin/+ mice. In summary, we identify a specific mechanism by which c-Src mediates glucose metabolism to meet cancer cells’ requirements for maximal biosynthesis and proliferation. The PFKFB3-Tyr194 phosphorylation level highly correlates with c-Src activity in clinical tumor samples, indicating its potential as an evaluation for tumor prognosis.

Original languageEnglish
Pages (from-to)4235-4249.e6
JournalCell Reports
Volume30
Issue number12
DOIs
StatePublished - 24 03 2020

Bibliographical note

Publisher Copyright:
© 2020 The Author(s)

Fingerprint

Dive into the research topics of 'c-Src Promotes Tumorigenesis and Tumor Progression by Activating PFKFB3'. Together they form a unique fingerprint.

Cite this