Journal
CANCER LETTERS
Volume 438, Issue -, Pages 10-16Publisher
ELSEVIER IRELAND LTD
DOI: 10.1016/j.canlet.2018.09.005
Keywords
KLF4; Alternative splicing; Context-dependent function; Cancer
Categories
Funding
- American Institute for Cancer Research [10A073]
- Texas Medical Center Digestive Disease Center
- MD Anderson Cancer Center Institutional Research program
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Kruppel-like factor 4 (KLF4) is an important transcription factor that is expressed in a variety of tissues and regulates many critical physiologic and cellular processes, including cell proliferation, differentiation, stem cell reprogramming, maintenance of genomic stability, and normal tissue homeostasis. KLF4 has both tumor suppressive and oncogenic functions in gastrointestinal and other cancers. These functions are thought to be context dependent, but how KLF4 exerts these differential functions and the molecular mechanisms behind them remain poorly understood. Recent studies have shown that the KLF4 gene undergoes alternative splicing, and the protein products of certain transcripts antagonize wild-type KLF4 function, suggesting an additional layer of regulation of KLF4 function. Therefore, detailed study of KLF4 alternative splicing may not only provide new insights into the complexity of KLF4 functions but also lead to rational targeting of KLF4 for cancer prevention and therapy.
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