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Review

Recent Discoveries on the Involvement of Krüppel-Like Factor 4 in the Most Common Cancer Types

1
Institute of Genetics and Biotechnology, Faculty of Biology, University of Warsaw, 1 Miecznikowa St., 02-096 Warsaw, Poland
2
Department of Physiology, Anatomy and Microbiology, School of Life Sciences, La Trobe University, Bundoora, VIC 3086, Australia
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Int. J. Mol. Sci. 2020, 21(22), 8843; https://doi.org/10.3390/ijms21228843
Received: 26 October 2020 / Revised: 20 November 2020 / Accepted: 21 November 2020 / Published: 22 November 2020
(This article belongs to the Special Issue Transcription Factors in Cancer)
Krüppel-like factor 4 (KLF4) is a transcription factor highly conserved in evolution. It is particularly well known for its role in inducing pluripotent stem cells. In addition, KLF4 plays many roles in cancer. The results of most studies suggest that KLF4 is a tumor suppressor. However, the functioning of KLF4 is regulated at many levels. These include regulation of transcription, alternative splicing, miRNA, post-translational modifications, subcellular localization, protein stability and interactions with other molecules. Simple experiments aimed at assaying transcript levels or protein levels fail to address this complexity and thus may deliver misleading results. Tumor subtypes are also important; for example, in prostate cancer KLF4 is highly expressed in indolent tumors where it impedes tumor progression, while it is absent from aggressive prostate tumors. KLF4 is important in regulating response to many known drugs, and it also plays a role in tumor microenvironment. More and more information is available about upstream regulators, downstream targets and signaling pathways associated with the involvement of KLF4 in cancer. Furthermore, KLF4 performs critical function in the overall regulation of tissue homeostasis, cellular integrity, and progression towards malignancy. Here we summarize and analyze the latest findings concerning this fascinating transcription factor. View Full-Text
Keywords: breast cancer; colorectal cancer; gastric cancer; hepatocellular carcinoma; KLF4; lung cancer; microenvironment; prostate cancer; subcellular localization; transcription factor breast cancer; colorectal cancer; gastric cancer; hepatocellular carcinoma; KLF4; lung cancer; microenvironment; prostate cancer; subcellular localization; transcription factor
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MDPI and ACS Style

Taracha-Wisniewska, A.; Kotarba, G.; Dworkin, S.; Wilanowski, T. Recent Discoveries on the Involvement of Krüppel-Like Factor 4 in the Most Common Cancer Types. Int. J. Mol. Sci. 2020, 21, 8843. https://doi.org/10.3390/ijms21228843

AMA Style

Taracha-Wisniewska A, Kotarba G, Dworkin S, Wilanowski T. Recent Discoveries on the Involvement of Krüppel-Like Factor 4 in the Most Common Cancer Types. International Journal of Molecular Sciences. 2020; 21(22):8843. https://doi.org/10.3390/ijms21228843

Chicago/Turabian Style

Taracha-Wisniewska, Agnieszka, Grzegorz Kotarba, Sebastian Dworkin, and Tomasz Wilanowski. 2020. "Recent Discoveries on the Involvement of Krüppel-Like Factor 4 in the Most Common Cancer Types" International Journal of Molecular Sciences 21, no. 22: 8843. https://doi.org/10.3390/ijms21228843

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