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Yang X, Chen C, Li L, Xiao T, Zou YD, Zheng D. Current research advances in microRNA-mediated regulation of Krüppel-like factor 4 in cancer: a narrative review. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:948. [PMID: 34350263 PMCID: PMC8263881 DOI: 10.21037/atm-21-2347] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 05/28/2021] [Indexed: 11/06/2022]
Abstract
Objective The purpose of this study was to investigate the miRNAs and related mechanisms that regulates KLF4 in different cancers. Furthermore, we summarized the potential targets of miRNAs regulating the KLF4 pathway in cancer research. Background MiRNAs are single-stranded, endogenous non-coding small RNAs, some of which are related to human cancers. miRNAs carry out post-transcriptional gene regulation through translation inhibition and degradation of target messenger RNAs (mRNAs) via complementarily pairing with their 3' untranslated regions. KLF4 is an important transcription factor with complex involvement in cancer. Increasing evidence shows that miRNAs are dysregulated in cancer and can regulate cancer-related signaling pathways, thereby affecting tumor progression. Methods Systematic scientific literature searches were undertaken on PubMed using the following terms: "miRNAs and KLF4", "KLF4 and cancer", "miRNAs and cancer", and "miRNAs, KLF4 and cancer". Relevant papers were retrieved and further results were found by reviewing related papers and the references of the retrieved papers. We then conducted a narrative overview of the literature to summarize the results of the papers. Conclusions The role of KLF4 in cancer varies in a context-dependent manner. KLF4-regulating miRNAs in different tumors include miR-124, miR-9-5p, miR-10b, miR-18a, miR-25-3p, miR-10b, miR-92a, miR-103, miR-155, miR-135b-5p, miR-32-5p, miR-148-3p, miR-152-3p, miR-10b, miR-25, miR-3120-5p, miR-7, miR-1233-3p, miR-10b, miR-145, miR-139-5p, miR-16, miR-152, miR-375, and miR-145.
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Affiliation(s)
- Xi Yang
- National Center for International Research of Bio-targeting Theranostics, Guangxi Key Laboratory of Bio-targeting Theranostics, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Talent Highland of Bio-targeting Theranostics, Guangxi Medical University, Nanning, China.,Shenzhen University International Cancer Center, Department of Cell Biology and Genetics, School of Medicine, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, China
| | - Cheng Chen
- Shenzhen University International Cancer Center, Department of Cell Biology and Genetics, School of Medicine, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, China
| | - Li Li
- Shenzhen University International Cancer Center, Department of Cell Biology and Genetics, School of Medicine, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, China
| | - Tian Xiao
- Shenzhen University International Cancer Center, Department of Cell Biology and Genetics, School of Medicine, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, China
| | - Yong-Dong Zou
- Shenzhen University International Cancer Center, Department of Cell Biology and Genetics, School of Medicine, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, China
| | - Duo Zheng
- National Center for International Research of Bio-targeting Theranostics, Guangxi Key Laboratory of Bio-targeting Theranostics, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Talent Highland of Bio-targeting Theranostics, Guangxi Medical University, Nanning, China.,Shenzhen University International Cancer Center, Department of Cell Biology and Genetics, School of Medicine, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, China
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Diao ZB, Sun TX, Zong Y, Lin BC, Xia YS. Identification of plasma microRNA-22 as a marker for the diagnosis, prognosis, and chemosensitivity prediction of osteosarcoma. J Int Med Res 2021; 48:300060520967818. [PMID: 33284712 PMCID: PMC7724422 DOI: 10.1177/0300060520967818] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Objective MicroRNA (miR)-22 plays crucial roles in malignant tumors and is involved in
regulation of chemosensitivity. Additionally, altered expression of
circulating miR-22 has been reported in various cancers. This study was
designed to investigate plasma miR-22 expression in patients with
osteosarcoma (OS) and determine its diagnostic, prognostic, and
chemosensitivity prediction value. Methods Plasma miR-22 levels in 120 patients with OS and 120 healthy controls were
detected by real-time quantitative reverse transcription PCR. Associations
of plasma miR-22 expression with the patients’ clinicopathological features
and prognosis were then assessed. Results Plasma miR-22 levels in patients with OS were significantly lower than those
in healthy controls. Low plasma miR-22 levels were correlated with large
tumor size, advanced clinical stages, positive distant metastasis, and poor
tumor response to preoperative chemotherapy. Plasma miR-22 could
discriminate OS patients from controls and distinguish patients with a good
response to therapy from those with a poor response to therapy. Multivariate
analysis revealed that low plasma miR-22 expression was a significant
independent predictor of unfavorable prognosis. Conclusions Altered plasma levels of miR-22 might serve as a novel, noninvasive biomarker
for OS diagnosis, prognosis, and chemosensitivity prediction.
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Affiliation(s)
- Zhen-Bin Diao
- Department of Orthopaedics, Daqing Oilfield General Hospital, Daqing, Heilongjiang Province, China
| | - Tian-Xiao Sun
- Department of Anesthesiology, Daqing Oilfield General Hospital, Daqing, Heilongjiang Province, China
| | - Yi Zong
- Department of Orthopaedics, Daqing Oilfield General Hospital, Daqing, Heilongjiang Province, China
| | - Bo-Chuan Lin
- Department of Orthopaedics, Daqing Oilfield General Hospital, Daqing, Heilongjiang Province, China
| | - Yuan-Sheng Xia
- Department of Orthopaedics, Daqing Oilfield General Hospital, Daqing, Heilongjiang Province, China
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Recent Discoveries on the Involvement of Krüppel-Like Factor 4 in the Most Common Cancer Types. Int J Mol Sci 2020; 21:ijms21228843. [PMID: 33266506 PMCID: PMC7700188 DOI: 10.3390/ijms21228843] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 11/20/2020] [Accepted: 11/21/2020] [Indexed: 02/06/2023] Open
Abstract
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.
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Huang C, Sun Y, Ma S, Vadamootoo AS, Wang L, Jin C. Identification of circulating miR-663a as a potential biomarker for diagnosing osteosarcoma. Pathol Res Pract 2019; 215:152411. [DOI: 10.1016/j.prp.2019.04.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 03/19/2019] [Accepted: 04/05/2019] [Indexed: 12/22/2022]
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