Abstract
STAT3 and STAT5 (STAT3/5) proteins are crucial mediators of cytokine- or growth factor-induced cell survival and proliferation. These transcription factors are frequently overactivated in a variety of solid tumors and hematopoietic neoplasms and are targets of various oncogenes with tyrosine kinase activity. STAT3/5 proteins regulate expression of genes involved in survival and proliferation in the nucleus and interact with signaling pathways in the cytoplasm. Evidences for a cross-talk between STAT3/5 and oxidative metabolism have recently emerged. This review summarizes the current knowledge on the cross-regulation between STAT3/5 and oxidative metabolism in normal and cancer cells.
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