Polo-like kinase 1 (PLK1) is a serine/threonine kinase with more than 600 phosphorylation substrates through which it regulates many biological processes, including mitosis, apoptosis, metabolism, RNA processing, vesicle transport, and G DNA-damage checkpoint recovery, among others. Among the many PLK1 targets are members of the FOX family of transcription factors (FOX TFs), including FOXM1, FOXO1, FOXO3, and FOXK1. FOXM1 and FOXK1 have critical oncogenic roles in cancer through their antagonism of apoptotic signals and their promotion of cell proliferation, metastasis, angiogenesis, and therapeutic resistance. In contrast, FOXO1 and FOXO3 have been identified to have broad functions in maintaining cellular homeostasis. In this review, we discuss PLK1-mediated regulation of FOX TFs, highlighting the effects of PLK1 on the activity and stability of these proteins. In addition, we review the prognostic and clinical significance of these proteins in human cancers and, more importantly, the different approaches that have been used to disrupt PLK1 and FOX TF-mediated signaling networks. Furthermore, we discuss the therapeutic potential of targeting PLK1-regulated FOX TFs in human cancers.
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http://dx.doi.org/10.3390/cells12091344 | DOI Listing |
Int J Mol Sci
December 2024
Department of Biology, Indiana State University, Terre Haute, IN 47809, USA.
Transl Oncol
January 2025
Department of Molecular Biology and Biotechnology, Tezpur University, Napaam, Sonitpur, Assam, 784028, India. Electronic address:
Hepatobiliary cancers (HBCs) pose a major global health challenge, with a lack of effective targeted biomarkers. Due to their complex anatomical locations, shared risk factors, and the limitations of targeted therapies, generalized treatment strategies are often used for gallbladder cancer (GBC), hepatocellular carcinoma (HCC), and intrahepatic cholangiocarcinoma (ICC). This study aimed to identify specific transcriptomic signatures in GBC, HCC, and ICC.
View Article and Find Full Text PDFJ Immunother Cancer
July 2024
Harvard Medical School, Boston, Massachussetts, USA.
Front Biosci (Landmark Ed)
June 2024
Hainan Provincial Key Laboratory for Human Reproductive Medicine and Genetic Research & Key Laboratory of Reproductive Health Diseases Research and Translation, Ministry of Education & Hainan Provincial Clinical Research Center for Thalassemia, Department of Reproductive Medicine, National Center for International Research "China-Myanmar Joint Research Center for Prevention and Treatment of Regional Major Disease" by the Ministry of Science and Technology of China, Haikou Key Laboratory for Preservation of Human Genetic Resource, The First Affiliated Hospital of Hainan Medical University, Hainan Medical University, 571101 Haikou, Hainan, China.
J Immunother Cancer
April 2024
Biostatistics, Dana-Farber Cancer Institute, Boston, Massachusetts, USA.
Background: As part of a partitioned survival analysis, treatment-free survival (TFS) can characterize the overall survival time patients spend between the cessation of immunotherapy and the start of subsequent therapy; both with and without toxicity. Significant TFS was reported for the nivolumab/ipilimumab arms of the CheckMate 067 and 214 trials for patients with advanced melanoma or renal cell carcinoma (aRCC), respectively, where immunotherapy was often halted for toxicity rather than a predefined treatment endpoint. We therefore sought to assess TFS in the HCRN GU16-260 trial, which was designed to reduce toxicity and cap immunotherapy duration.
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