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He Z, He J, Xie K. KLF4 transcription factor in tumorigenesis. Cell Death Discov 2023; 9:118. [PMID: 37031197 PMCID: PMC10082813 DOI: 10.1038/s41420-023-01416-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Revised: 03/22/2023] [Accepted: 03/24/2023] [Indexed: 04/10/2023] Open
Abstract
Krüppel-like transcriptional factor is important in maintaining cellular functions. Deletion of Krüppel-like transcriptional factor usually causes abnormal embryonic development and even embryonic death. KLF4 is a prominent member of this family, and embryonic deletion of KLF4 leads to alterations in skin permeability and postnatal death. In addition to its important role in embryo development, it also plays a critical role in inflammation and malignancy. It has been investigated that KLF4 has a regulatory role in a variety of cancers, including lung, breast, prostate, colorectal, pancreatic, hepatocellular, ovarian, esophageal, bladder and brain cancer. However, the role of KLF4 in tumorigenesis is complex, which may link to its unique structure with both transcriptional activation and transcriptional repression domains, and to the regulation of its upstream and downstream signaling molecules. In this review, we will summarize the structural and functional aspects of KLF4, with a focus on KLF4 as a clinical biomarker and therapeutic target in different types of tumors.
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Affiliation(s)
- Zhihong He
- Center for Pancreatic Cancer Research, The South China University of Technology School of Medicine, Guangzhou, China
- The South China University of Technology Comprehensive Cancer Center, Guangdong, China
| | - Jie He
- The Second Affiliated Hospital and Guangzhou First People's Hospital, South China University of Technology School of Medicine, Guangdong, China
| | - Keping Xie
- Center for Pancreatic Cancer Research, The South China University of Technology School of Medicine, Guangzhou, China.
- The South China University of Technology Comprehensive Cancer Center, Guangdong, China.
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Vishnubalaji R, Shaath H, Al-Alwan M, Abdelalim EM, Alajez NM. Reciprocal interplays between MicroRNAs and pluripotency transcription factors in dictating stemness features in human cancers. Semin Cancer Biol 2022; 87:1-16. [PMID: 36354097 DOI: 10.1016/j.semcancer.2022.10.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 10/26/2022] [Accepted: 10/27/2022] [Indexed: 11/06/2022]
Abstract
The interplay between microRNAs (miRNAs) and pluripotency transcription factors (TFs) orchestrates the acquisition of cancer stem cell (CSC) features during the course of malignant transformation, rendering them essential cancer cell dependencies and therapeutic vulnerabilities. In this review, we discuss emerging themes in tumor heterogeneity, including the clonal evolution and the CSC models and their implications in resistance to cancer therapies, and then provide thorough coverage on the roles played by key TFs in maintaining normal and malignant stem cell pluripotency and plasticity. In addition, we discuss the reciprocal interactions between miRNAs and MYC, OCT4, NANOG, SOX2, and KLF4 pluripotency TFs and their contributions to tumorigenesis. We provide our view on the potential to interfere with key miRNA-TF networks through the use of RNA-based therapeutics as single agents or in combination with other therapeutic strategies, to abrogate the CSC state and render tumor cells more responsive to standard and targeted therapies.
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Affiliation(s)
- Radhakrishnan Vishnubalaji
- Translational Cancer and Immunity Center (TCIC), Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Qatar Foundation (QF), PO Box 34110, Doha, Qatar
| | - Hibah Shaath
- Translational Cancer and Immunity Center (TCIC), Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Qatar Foundation (QF), PO Box 34110, Doha, Qatar
| | - Monther Al-Alwan
- Stem Cell and Tissue Re-Engineering Program, King Faisal Specialist Hospital and Research Centre, Riyadh 11211, Saudi Arabia; College of Medicine, Al-Faisal University, Riyadh 11533, Saudi Arabia
| | - Essam M Abdelalim
- Diabetes Research Center (DRC), Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Qatar Foundation, PO Box 34110, Doha, Qatar; College of Health & Life Sciences, Hamad Bin Khalifa University (HBKU), Qatar Foundation (QF), PO Box 34110, Doha, Qatar
| | - Nehad M Alajez
- Translational Cancer and Immunity Center (TCIC), Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Qatar Foundation (QF), PO Box 34110, Doha, Qatar; College of Health & Life Sciences, Hamad Bin Khalifa University (HBKU), Qatar Foundation (QF), PO Box 34110, Doha, Qatar.
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Luo X, Zhang Y, Meng Y, Ji M, Wang Y. Prognostic significance of KLF4 in solid tumours: an updated meta-analysis. BMC Cancer 2022; 22:181. [PMID: 35177016 PMCID: PMC8851789 DOI: 10.1186/s12885-022-09198-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Accepted: 01/15/2022] [Indexed: 11/10/2022] Open
Abstract
Background Kruppel-like factor 4 (KLF4) is a zinc finger-containing transcription factor predominantly expressed in terminally differentiated epithelial tissues. Many studies have shown that KLF4 has various mechanisms in different tumours; however, the prognostic role of KLF4 remains unclear. Methods and results We searched the relevant literature that evaluated the prognostic value of KLF4 in different cancers, and the original survival data were obtained from the text, tables or Kaplan–Meier curves for both comparative groups. Thirty studies were included in this meta-analysis, and a total of 10 malignant tumours were involved. The expression of KLF4 was not associated with the prognosis for overall survival (hazard ratio(HR)0.86, 95% confidence interval (CI): 0.65–1.13, P = 0.28), disease-free survival/recurrence-free survival/metastasis-free survival (HR 0.87, 95% CI: 0.52–1.44, P = 0.58) or disease-specific survival (HR 1.13, 95% CI: 0.44–2.87, P = 0.8). Conclusion This study showed that the expression of KLF4 was not related to the prognosis of the tumours that were included in the study.
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Affiliation(s)
- Xiaoya Luo
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University. National Clinical Research Center for Digestive Disease. Beijing Digestive Disease Center. Beijing Key Laboratory for Precancerous Lesion of Digestive Disease., Beijing, 100050, China.
| | - Yue Zhang
- Department of Oncology, The First Hospital of Fangshan District, Beijing, 102400, China
| | - Ying Meng
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University. National Clinical Research Center for Digestive Disease. Beijing Digestive Disease Center. Beijing Key Laboratory for Precancerous Lesion of Digestive Disease., Beijing, 100050, China
| | - Ming Ji
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University. National Clinical Research Center for Digestive Disease. Beijing Digestive Disease Center. Beijing Key Laboratory for Precancerous Lesion of Digestive Disease., Beijing, 100050, China
| | - Yongjun Wang
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University. National Clinical Research Center for Digestive Disease. Beijing Digestive Disease Center. Beijing Key Laboratory for Precancerous Lesion of Digestive Disease., Beijing, 100050, China
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Tseng WC, Lee PY, Tsai MT, Chang FP, Chen NJ, Chien CT, Hung SC, Tarng DC. Hypoxic mesenchymal stem cells ameliorate acute kidney ischemia-reperfusion injury via enhancing renal tubular autophagy. Stem Cell Res Ther 2021; 12:367. [PMID: 34183058 PMCID: PMC8240301 DOI: 10.1186/s13287-021-02374-x] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 05/09/2021] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Acute kidney injury (AKI) is an emerging global healthcare issue without effective therapy yet. Autophagy recycles damaged organelles and helps maintain tissue homeostasis in acute renal ischemia-reperfusion (I/R) injury. Hypoxic mesenchymal stem cells (HMSCs) represent an innovative cell-based therapy in AKI. Moreover, the conditioned medium of HMSCs (HMSC-CM) rich in beneficial trophic factors may serve as a cell-free alternative therapy. Nonetheless, whether HMSCs or HMSC-CM mitigate renal I/R injury via modulating tubular autophagy remains unclear. METHODS Renal I/R injury was induced by clamping of the left renal artery with right nephrectomy in male Sprague-Dawley rats. The rats were injected with either PBS, HMSCs, or HMSC-CM immediately after the surgery and sacrificed 48 h later. Renal tubular NRK-52E cells subjected to hypoxia-reoxygenation (H/R) injury were co-cultured with HMSCs or treated with HMSC-CM to assess the regulatory effects of HSMCs on tubular autophagy and apoptosis. The association of tubular autophagy gene expression and renal recovery was also investigated in patients with ischemic AKI. RESULT HMSCs had a superior anti-oxidative effect in I/R-injured rat kidneys as compared to normoxia-cultured mesenchymal stem cells. HMSCs further attenuated renal macrophage infiltration and inflammation, reduced tubular apoptosis, enhanced tubular proliferation, and improved kidney function decline in rats with renal I/R injury. Moreover, HMSCs suppressed superoxide formation, reduced DNA damage and lipid peroxidation, and increased anti-oxidants expression in renal tubular epithelial cells during I/R injury. Co-culture of HMSCs with H/R-injured NRK-52E cells also lessened tubular cell death. Mechanistically, HMSCs downregulated the expression of pro-inflammatory interleukin-1β, proapoptotic Bax, and caspase 3. Notably, HMSCs also upregulated the expression of autophagy-related LC3B, Atg5 and Beclin 1 in renal tubular cells both in vivo and in vitro. Addition of 3-methyladenine suppressed the activity of autophagy and abrogated the renoprotective effects of HMSCs. The renoprotective effect of tubular autophagy was further validated in patients with ischemic AKI. AKI patients with higher renal LC3B expression were associated with better renal recovery. CONCLUSION The present study describes that the enhancing effect of MSCs, and especially of HMCSs, on tissue autophagy can be applied to suppress renal tubular apoptosis and attenuate renal impairment during renal I/R injury in the rat. Our findings provide further mechanistic support to HMSCs therapy and its investigation in clinical trials of ischemic AKI.
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Affiliation(s)
- Wei-Cheng Tseng
- Division of Nephrology, Department of Medicine, Taipei Veterans General Hospital, 201, Section 2, Shih-Pai Road, Taipei, 11217, Taiwan.,Faculty of Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan.,Institute of Clinical Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan.,Center for Intelligent Drug Systems and Smart Bio-devices (IDS2B), National Chiao-Tung University, Hsinchu, Taiwan.,Institute of Clinical Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Pei-Ying Lee
- Holistic Education Center, Tzu Chi University of Science and Technology, Hualien, Taiwan
| | - Ming-Tsun Tsai
- Division of Nephrology, Department of Medicine, Taipei Veterans General Hospital, 201, Section 2, Shih-Pai Road, Taipei, 11217, Taiwan.,Faculty of Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan.,Institute of Clinical Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan.,Institute of Clinical Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Fu-Pang Chang
- Faculty of Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan.,Institute of Clinical Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan.,Institute of Clinical Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Nien-Jung Chen
- Institute of Clinical Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Institute of Microbiology and Immunology, School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Chiang-Ting Chien
- Department of Life Science, School of Life Science, National Taiwan Normal University, Taipei, Taiwan
| | - Shih-Chieh Hung
- Institute of Clinical Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan. .,Institute of Clinical Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan. .,Integrative Stem Cell Center, Department of Orthopedics, and Institute of New Drug Development, New Drug Development Center, China Medical University, Taichung, Taiwan. .,Institute of Biomedical Sciences, Academia Sinica, 128, Section 2, Academia Road, Taipei, 11529, Taiwan.
| | - Der-Cherng Tarng
- Division of Nephrology, Department of Medicine, Taipei Veterans General Hospital, 201, Section 2, Shih-Pai Road, Taipei, 11217, Taiwan. .,Faculty of Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan. .,Institute of Clinical Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan. .,Center for Intelligent Drug Systems and Smart Bio-devices (IDS2B), National Chiao-Tung University, Hsinchu, Taiwan. .,Institute of Clinical Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan. .,Department and Institute of Physiology, School of Medicine, National Yang-Ming University, Taipei, Taiwan. .,Department of Biological Science and Technology, College of Biological Science and Technology, National Chiao-Tung University, Hsinchu, Taiwan.
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Shih YC, Chen PY, Ko TM, Huang PH, Ma H, Tarng DC. MMP-9 Deletion Attenuates Arteriovenous Fistula Neointima through Reduced Perioperative Vascular Inflammation. Int J Mol Sci 2021; 22:ijms22115448. [PMID: 34064140 PMCID: PMC8196691 DOI: 10.3390/ijms22115448] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 05/15/2021] [Accepted: 05/18/2021] [Indexed: 01/05/2023] Open
Abstract
Matrix metalloproteinase 9 (MMP-9) expression is upregulated in vascular inflammation and participates in vascular remodeling, including aneurysm dilatation and arterial neointima development. Neointima at the arteriovenous (AV) fistula anastomosis site primarily causes AV fistula stenosis and failure; however, the effects of MMP-9 on perioperative AV fistula remodeling remain unknown. Therefore, we created AV fistulas (end-to-side anastomosis) in wild-type (WT) and MMP-9 knockout mice with chronic kidney disease to further clarify this. Neointima progressively developed in the AV fistula venous segment of WT mice during the four-week postoperative course, and MMP-9 knockout increased the lumen area and attenuated neointima size by reducing smooth muscle cell and collagen components. Early perioperative AV fistula mRNA sequencing data revealed that inflammation-related gene sets were negatively enriched in AV fistula of MMP-9 knockout mice compared to that in WT mice. qPCR results also showed that inflammatory genes, including tumor necrosis factor-α (TNF-α), monocyte chemoattractant protein-1 (MCP-1), interleukin-6 (IL-6), intercellular adhesion molecule-1 (ICAM-1), and vascular cell adhesion molecule-1 (VCAM-1), were downregulated. In addition, Western blot results showed that MMP-9 knockout reduced CD44 and RAC-alpha serine/threonine-protein kinase (Akt) and extracellular signal-regulated kinases (ERK) phosphorylation. In vitro, MMP-9 addition enhanced IL-6 and MCP-1 expression in vascular smooth muscle cells, as well as cell migration, which was reversed by an MMP-9 inhibitor. In conclusion, MMP-9 knockout attenuated AV fistula stenosis by reducing perioperative vascular inflammation.
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Affiliation(s)
- Yu-Chung Shih
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei 11217, Taiwan; (Y.-C.S.); (H.M.)
- Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei 11221, Taiwan;
- Institute of Clinical Medicine, National Yang Ming University, Taipei 11221, Taiwan
- Department of Surgery, School of Medicine, National Yang Ming Chiao Tung University, Taipei 112, Taiwan
| | - Po-Yuan Chen
- Bioinformatics Program, Taiwan International Graduate Program, Academia Sinica, Taipei 115, Taiwan; (P.-Y.C.); (T.-M.K.)
- Institute of Bioinformatics and Systems Biology, National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan
- Institute of Information Science, Academia Sinica, Taipei 115, Taiwan
| | - Tai-Ming Ko
- Bioinformatics Program, Taiwan International Graduate Program, Academia Sinica, Taipei 115, Taiwan; (P.-Y.C.); (T.-M.K.)
- Institute of Bioinformatics and Systems Biology, National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan
- Department of Biological Science and Technology, National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan
- Institute of Biomedical Sciences, Academia Sinica, Taipei 115, Taiwan
- Center of Intelligent Drug System and Smart Bio-devices (IDS2B), National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan
| | - Po-Hsun Huang
- Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei 11221, Taiwan;
- Institute of Clinical Medicine, National Yang Ming University, Taipei 11221, Taiwan
- Department of Critical Care Medicine, Taipei Veterans General Hospital, Taipei 11217, Taiwan
| | - Hsu Ma
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei 11217, Taiwan; (Y.-C.S.); (H.M.)
- Department of Surgery, School of Medicine, National Yang Ming Chiao Tung University, Taipei 112, Taiwan
- Department of Surgery, School of Medicine, National Defense Medical Center, Taipei 11490, Taiwan
| | - Der-Cherng Tarng
- Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei 11221, Taiwan;
- Institute of Clinical Medicine, National Yang Ming University, Taipei 11221, Taiwan
- Division of Nephrology, Department of Medicine, Taipei Veterans General Hospital, Taipei 11217, Taiwan
- Institute of Physiology, National Yang Ming Chiao Tung University, Taipei 11221, Taiwan
- Correspondence:
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Song Z, Chen L, Pang S, Yan B. Molecular genetic study on GATA5 gene promoter in acute myocardial infarction. PLoS One 2021; 16:e0248203. [PMID: 33684162 PMCID: PMC7939267 DOI: 10.1371/journal.pone.0248203] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 02/23/2021] [Indexed: 11/23/2022] Open
Abstract
Background Acute myocardial infarction (AMI) is a severe type of coronary artery disease, caused by coronary occlusion and followed by cardiac ischaemia. GATA binding protein 5 (GATA5) is an important member of GATA family and plays an important role in vascular inflammation, endothelial function, oxidative stress and cell metabolism. Previous studies have shown that the DNA sequence variants (DSVs) in GATA4 and GATA6 promoter can increase susceptibility to AMI. In this study, we explored the relationship between GATA5 promoter and AMI for the first time, hoping to provide a new genetic basis for understanding the pathogenesis of AMI. Methods GATA5 promoter was sequenced in 683 individuals (332 AMI patients and 351 controls). The transcriptional activity of the GATA5 promoter with or without DSVs in HEK-293 cells, H9c2 cells and primary neonatal rat cardiomyocytes were examined by Promega Dual-Luciferase® Reporter Assay system. Electrophoretic mobility shift assay (EMSA) was performed to explore whether the DSVs interfered with the binding of transcription factors (TFs). Results Nine mutations have been found in GATA5 promoter, eight of them evidently altered the transcriptional activity of the GATA5 promoter, five of them disrupted the binding of TFs (such as farnesoid X receptor). Furthermore, haplotype AT (across rs80197101 and rs77067995) is a dangerous haplotype of AMI. Genotype GA and allele A of rs80197101 and genotype CT and allele T of rs77067995 are the risk factors of AMI. Conclusions DSVs in GATA5 promoter can increase susceptibility to AMI. But the mechanism remains to be verified in vivo.
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Affiliation(s)
- Zhipeng Song
- Department of Medicine, Shandong University School of Medicine, Jinan, Shandong, China
| | - Lu Chen
- Center for Molecular Medicine, Yanzhou People’s Hospital, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, Shandong, China
| | - Shuchao Pang
- Shandong Provincial Key Laboratory of Cardiac Disease Diagnosis and Treatment, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, Shandong, China
| | - Bo Yan
- Center for Molecular Medicine, Yanzhou People’s Hospital, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, Shandong, China
- Shandong Provincial Key Laboratory of Cardiac Disease Diagnosis and Treatment, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, Shandong, China
- Shandong Provincial Sino-US Cooperation Research Center for Translational Medicine, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, Shandong, China
- * E-mail:
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Barati M, Akhondi M, Mousavi NS, Haghparast N, Ghodsi A, Baharvand H, Ebrahimi M, Hassani SN. Pluripotent Stem Cells: Cancer Study, Therapy, and Vaccination. Stem Cell Rev Rep 2021; 17:1975-1992. [PMID: 34115316 PMCID: PMC8193020 DOI: 10.1007/s12015-021-10199-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/02/2021] [Indexed: 02/05/2023]
Abstract
INTRODUCTION Pluripotent stem cells (PSCs) are promising tools for modern regenerative medicine applications because of their stemness properties, which include unlimited self-renewal and the ability to differentiate into all cell types in the body. Evidence suggests that a rare population of cells within a tumor, termed cancer stem cells (CSCs), exhibit stemness and phenotypic plasticity properties that are primarily responsible for resistance to chemotherapy, radiotherapy, metastasis, cancer development, and tumor relapse. Different therapeutic approaches that target CSCs have been developed for tumor eradication. RESULTS AND DISCUSSION In this review, we first provide an overview of different viewpoints about the origin of CSCs. Particular attention has been paid to views believe that CSCs are probably appeared through dysregulation of very small embryonic-like stem cells (VSELs) which reside in various tissues as the main candidate for tissue-specific stem cells. The expression of pluripotency markers in these two types of cells can strengthen the validity of this theory. In this regard, we discuss the common properties of CSCs and PSCs, and highlight the potential of PSCs in cancer studies, therapeutic applications, as well as educating the immune system against CSCs. CONCLUSION In conclusion, the resemblance of CSCs to PSCs can provide an appropriate source of CSC-specific antigens through cultivation of PSCs which brings to light promising ideas for prophylactic and therapeutic cancer vaccine development.
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Affiliation(s)
- Mojgan Barati
- Department of Developmental Biology, School of Basic Sciences and Advanced Technologies in Biology, University of Science and Culture, Tehran, Iran
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Maryam Akhondi
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Narges Sabahi Mousavi
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Newsha Haghparast
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Asma Ghodsi
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Hossein Baharvand
- Department of Developmental Biology, School of Basic Sciences and Advanced Technologies in Biology, University of Science and Culture, Tehran, Iran
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Marzieh Ebrahimi
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Seyedeh-Nafiseh Hassani
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
- Advanced Therapy Medicinal Product Technology Development Center (ATMP-TDC), Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
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Trichostatin A Alleviates Renal Interstitial Fibrosis Through Modulation of the M2 Macrophage Subpopulation. Int J Mol Sci 2020; 21:ijms21175966. [PMID: 32825118 PMCID: PMC7503910 DOI: 10.3390/ijms21175966] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 08/16/2020] [Accepted: 08/16/2020] [Indexed: 12/16/2022] Open
Abstract
Mounting evidence indicates that an increase in histone deacetylation contributes to renal fibrosis. Although inhibition of histone deacetylase (HDAC) can reduce the extent of fibrosis, whether HDAC inhibitors exert the antifibrotic effect through modulating the phenotypes of macrophages, the key regulator of renal fibrosis, remains unknown. Moreover, the functional roles of the M2 macrophage subpopulation in fibrotic kidney diseases remain incompletely understood. Herein, we investigated the role of HDAC inhibitors on renal fibrogenesis and macrophage plasticity. We found that HDAC inhibition by trichostatin A (TSA) reduced the accumulation of interstitial macrophages, suppressed the activation of myofibroblasts and attenuated the extent of fibrosis in obstructive nephropathy. Moreover, TSA inhibited M1 macrophages and augmented M2 macrophage infiltration in fibrotic kidney tissue. Interestingly, TSA preferentially upregulated M2c macrophages and suppressed M2a macrophages in the obstructed kidneys, which was correlated with a reduction of interstitial fibrosis. TSA also repressed the expression of proinflammatory and profibrotic molecules in cultured M2a macrophages and inhibited the activation of renal myofibroblasts. In conclusion, our study was the first to show that HDAC inhibition by TSA alleviates renal fibrosis in obstructed kidneys through facilitating an M1 to M2c macrophage transition.
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Zhu ST, Wang X, Wang JY, Xi GH, Liu Y. Downregulation of miR-22 Contributes to Epithelial-Mesenchymal Transition in Osteosarcoma by Targeting Twist1. Front Oncol 2020; 10:406. [PMID: 32391253 PMCID: PMC7193700 DOI: 10.3389/fonc.2020.00406] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Accepted: 03/09/2020] [Indexed: 12/11/2022] Open
Abstract
The epithelial-mesenchymal transition (EMT) is a vital step in osteosarcoma (OS) progression toward metastasis, but the specific molecular events governing this process are incompletely characterized, with miRNAs having increasingly been found to regulate the EMT. In this study, We assessed levels of miR-22 and its target, Twist1, via real-time PCR (qRT-PCR). We further used functional proliferation assays, measures of cell morphology, and western blotting to assess the functional relevance of miR-22 in OS and confirmed Twist1 as a miR-22 target via luciferase reporter assay. We observed a significant decrease in miR-22 levels in OS tumor samples relative to normal tissue, with such downregulating being significantly associated with tumor histological grade. When overexpressed, miR-22 impaired OS cell proliferation and EMT progression. We found Twist1 to be a direct miR-22 target, with levels of miR-22 and Twist1 mRNA being inversely correlated in patient samples. When overexpressed, miR-22 suppressed Twist1 translation and thereby attenuated the EMT in OS cells. These results clearly demonstrate that miR-22 can regulate the EMT in OS cells via targeting Twist1, thus highlighting a potentially novel pathway that can be therapeutically targeted in order to treat OS.
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Affiliation(s)
- Shu-Tao Zhu
- Department of Orthopedics, Huaihe Hospital, The First Affiliated Hospital of Henan University, Kaifeng, China
| | - Xiao Wang
- Department of Orthopedics, Huaihe Hospital, The First Affiliated Hospital of Henan University, Kaifeng, China
| | - Jun-Yi Wang
- Department of Orthopedics, Huaihe Hospital, The First Affiliated Hospital of Henan University, Kaifeng, China
| | - Guang-Hui Xi
- Department of Orthopedics, Huaihe Hospital, The First Affiliated Hospital of Henan University, Kaifeng, China
| | - Yang Liu
- Department of Orthopedics, Huaihe Hospital, The First Affiliated Hospital of Henan University, Kaifeng, China
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Wang J, Wang X, Wang Y, Li S, Wang X. Krüppel like factor 6 splice variant 1 (KLF6-SV1) overexpression recruits macrophages to participate in lung cancer metastasis by up-regulating TWIST1. Cancer Biol Ther 2018; 20:680-691. [PMID: 30590988 PMCID: PMC6605981 DOI: 10.1080/15384047.2018.1550570] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Revised: 11/07/2018] [Accepted: 11/15/2018] [Indexed: 01/10/2023] Open
Abstract
The aim of this study was to investigate the mechanism by which KLF6-SV1 promoted lung cancer metastasis through tumor-associated macrophages (TAMs). Plasmid transfection was used to construct cells that upregulated or silenced gene. Tumor-bearing mouse model was established using A549 cells. SP staining was performed to detect the CD163 and CD68. Six-well plates and Transwell chamber were used for co-culture of lung cancer A549 cells and macrophages. CCK-8 and Transwell assay were applied to detected the cell viability and migration respectively. Protein and mRNA were tested by Western blot and quantitative real-time polymerase chain reaction (qRT-PCR).KLF6-SV1 overexpression promoted the expression levels of TWIST1 and CCL2, and also induce macrophage polarization to M2 and epithelial-mesenchymal transition (EMT). In vitro experiments showed that KLF6-SV1 might regulate the migration of lung cancer cells by regulating the expression of TWIST1 and CCL-2. M2 macrophages did not affect the expression of KLF6-SV1, TWIST1 and CCL-2. The co-culture system could up-regulate the EMT of A549 cells.Overexpression of KLF6-SV1 promoted the expression of TWIST1 and CCL2, and up-regulation of TWIST1 expression might promote the infiltration of M2 macrophages, which promoted the involvement of EMT in the metastasis of lung cancer cells.
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Affiliation(s)
- Jian Wang
- Department of Medical oncology, Qilu Hospital of Shandong University, Jinan, Shandong Province, China
| | - Xiao Wang
- Department of Rheumatology, Qilu Hospital of Shandong University, Jinan, Shandong Province, China
| | - Yawei Wang
- Department of Medical oncology, Qilu Hospital of Shandong University, Jinan, Shandong Province, China
| | - Shuguang Li
- Department of Medical oncology, Qilu Hospital of Shandong University, Jinan, Shandong Province, China
| | - Xiuwen Wang
- Department of Medical oncology, Qilu Hospital of Shandong University, Jinan, Shandong Province, China
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11
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An T, Dong T, Zhou H, Chen Y, Zhang J, Zhang Y, Li Z, Yang X. The transcription factor Krüppel-like factor 5 promotes cell growth and metastasis via activating PI3K/AKT/Snail signaling in hepatocellular carcinoma. Biochem Biophys Res Commun 2018; 508:159-168. [PMID: 30473218 DOI: 10.1016/j.bbrc.2018.11.084] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 11/13/2018] [Indexed: 12/29/2022]
Abstract
The transcription factor Krüppel-like factor 5 (KLF5) is highly expressed in many cancers and serves as a prognostic factor. However, the function of KLF5 in hepatocellular carcinoma (HCC) is unclear. In this study, we found that KLF5 was significantly overexpressed in HCC cell lines and specimens, and high KLF5 expression predicted a poor prognosis for HCC patients. Then, we studied the effects of KLF5 on the proliferation, apoptosis, migration and invasion of HCC cells in vitro and vivo. The inhibition of KLF5 markedly inhibited HCC growth and metastasis, while KLF5 overexpression promoted these processes. In addition, we observed that KLF5 could promote the epithelial-mesenchymal transition (EMT) in HCC via the PI3K/AKT/Snail signaling pathway. The silencing of KLF5 in HCC cell lines downregulated the expression of N-cadherin, Vimentin and Snail and increased the expression of the epithelial marker E-cadherin. The expression of MMP2 and MMP9 was also decreased in KLF5-silenced HCC cells. However, opposite results were observed in the KLF5-overexpressing group. These results indicate that KLF5 plays a significant role in HCC progression and metastasis and induces EMT via activating PI3K/AKT/Snail signaling, and the inhibition of KLF5 may be a potential treatment modality for patients with HCC.
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Affiliation(s)
- Tingting An
- Department of Abdominal Ultrasound, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Tianxiu Dong
- Department of Abdominal Ultrasound, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Haoxin Zhou
- Department of Emergency Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Yaodong Chen
- Department of Abdominal Ultrasound, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Jiuwei Zhang
- Department of Abdominal Ultrasound, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Yu Zhang
- Department of Abdominal Ultrasound, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Zizhuo Li
- Department of Abdominal Ultrasound, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Xiuhua Yang
- Department of Abdominal Ultrasound, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, China.
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12
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Wu H, Wang X, Mo N, Zhang L, Yuan X, Lü Z. B7-Homolog 4 Promotes Epithelial-Mesenchymal Transition and Invasion of Bladder Cancer Cells via Activation of Nuclear Factor-κB. Oncol Res 2018; 26:1267-1274. [PMID: 29391086 PMCID: PMC7844705 DOI: 10.3727/096504018x15172227703244] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
B7-homolog 4 (B7-H4), a member of the B7 family of costimulatory molecules, has been reported to be upregulated in urothelial cell carcinoma. This study was conducted to explore the biological role of B7-H4 in the aggressiveness of bladder cancer and the associated molecular mechanism. We found that the mRNA and protein levels of B7-H4 were significantly greater in bladder cancer cell lines than in SV-HUC-1 (normal human urothelial cells). Overexpression of B7-H4 significantly promoted bladder cancer cell migration and invasion, whereas knockdown of B7-H4 exerted an opposite effect. However, the growth of bladder cancer cells was not altered by B7-H4 overexpression or knockdown. Overexpression of B7-H4 promoted epithelial–mesenchymal transition (EMT), as evidenced by decreased E-cadherin and increased vimentin expression. The EMT inducers Twist1 and Snail were upregulated by B7-H4 overexpression and downregulated by B7-H4 silencing. Mechanistically, overexpression of B7-H4 induced the activation of NF-κB signaling. Pharmacological inhibition of NF-κB partially prevented B7-H4-mediated bladder cancer cell invasion. Taken together, B7-H4/NF-κB signaling is involved in the EMT and invasion of bladder cancer cells and represents a new candidate target for the treatment of bladder cancer.
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Affiliation(s)
- Haoran Wu
- Department of Urology, Wujin Hospital, Affiliated to Jiangsu University, Changzhou, P.R. China
| | - Xugang Wang
- Department of Urology, Wujin Hospital, Affiliated to Jiangsu University, Changzhou, P.R. China
| | - Naixin Mo
- Department of Urology, Wujin Hospital, Affiliated to Jiangsu University, Changzhou, P.R. China
| | - Liang Zhang
- Department of Urology, Wujin Hospital, Affiliated to Jiangsu University, Changzhou, P.R. China
| | - Xiaoliang Yuan
- Department of Urology, Wujin Hospital, Affiliated to Jiangsu University, Changzhou, P.R. China
| | - Zhong Lü
- Department of Urology, Wujin Hospital, Affiliated to Jiangsu University, Changzhou, P.R. China
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13
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Zhou Q, Fan D, Huang K, Chen X, Chen Y, Mai Q. Activation of KLF4 expression by small activating RNA promotes migration and invasion in colorectal epithelial cells. Cell Biol Int 2018; 42:495-503. [PMID: 29274293 DOI: 10.1002/cbin.10926] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Accepted: 12/20/2017] [Indexed: 12/23/2022]
Abstract
RNA activation mediated by small double-stranded RNAs targeting promoter sequence named small activating RNAs (saRNAs) is one of the mechanisms for gene activation. Artificial regulation of gene expression through RNA activation does not affect the alteration of the genomic DNA sequences or exogenous plasmid DNA, therefore it is a relative manageable approach for gene perturbation. KLF4 is a member of zinc-finger transcription factors and its functions in colorectal cells are still controversial. In order to elucidate the functions of KLF4, we synthesized saRNAs that target the promoter regions of KLF4 and transfected into varied colorectal epithelial cell lines. We found the KLF4 gene expression is specifically increased in the human normal epithelial cell NCM460 and colorectal epithelial cancer cell Caco-2 and HCT116, but not in other human colorectal epithelial cell lines. In addition, we observed that saRNAs induced overexpression of KLF4 could promote cell migration/invasion in NCM460 and HCT116 cell lines. This effect is mediated partly by inducing EMT and facilitating nuclear translocation of β-catenin.
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Affiliation(s)
- Qinqin Zhou
- Guangdong Institute of Gastroenterology and the Sixth Affiliated Hospital, Sun Yat-Sen University, 26 Yuancun Er Heng Road, Guangzhou, 510655, China
| | - Dejun Fan
- Department of Gastrointestinal Endoscopy, the Sixth Affiliated Hospital of Sun Yat-sen University, 26 Yuancun Er Heng Road, Guangzhou, 510655, China
| | - Kejun Huang
- The Center for Reproductive medicine, the First Affiliated Hospital of Sun Yat-sen University, 58 Zhongshan Er Road, Guangzhou, 510080, China
| | - Xiuting Chen
- Department of Colorectal Surgery, the Sixth Affiliated Hospital of Sun Yat-sen University, 26 Yuancun Er Heng Road, Guangzhou, 510655, China
| | - Yufeng Chen
- Department of Colorectal Surgery, the Sixth Affiliated Hospital of Sun Yat-sen University, 26 Yuancun Er Heng Road, Guangzhou, 510655, China
| | - Qingyun Mai
- The Center for Reproductive medicine, the First Affiliated Hospital of Sun Yat-sen University, 58 Zhongshan Er Road, Guangzhou, 510080, China
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14
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Yang X, Shi L, Yi C, Yang Y, Chang L, Song D. Astrocyte elevated gene-1 promotes invasion and epithelial-mesenchymal transition in bladder cancer cells through activation of signal transducer and activator of transcription 3. Int J Urol 2017; 25:157-163. [PMID: 29117631 DOI: 10.1111/iju.13486] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Accepted: 10/03/2017] [Indexed: 01/21/2023]
Abstract
OBJECTIVES To determine the impact of astrocyte elevated gene-1 on the invasion and epithelial-mesenchymal transition of bladder cancer cells in vitro and metastasis in vivo. METHODS Gain- and loss-of-function studies were carried out to investigate the biological roles of astrocyte elevated gene-1 in bladder cancer cell invasion, epithelial-mesenchymal transition and lung metastasis. The mechanism underlying the activity of astrocyte elevated gene-1 was examined. RESULTS Overexpression of astrocyte elevated gene-1 led to a significant increase in the invasive ability of UMUC3 and T24 bladder cancer cells in Matrigel invasion assays. In contrast, silencing of astrocyte elevated gene-1 restrained bladder cancer cell invasion. Overexpression of astrocyte elevated gene-1 downregulated E-cadherin and upregulated vimentin and Twist1, while silencing of astrocyte elevated gene-1 exerted an opposite effect. Mechanistically, astrocyte elevated gene-1 overexpression promoted the phosphorylation of signal transducer and activator of transcription 3 in bladder cancer cells. Treatment with WP1066, a specific signal transducer and activator of transcription 3 inhibitor, significantly abolished astrocyte elevated gene-1-induced invasion and epithelial-mesenchymal transition in UMUC3 cells. In vivo studies showed that astrocyte elevated gene-1 overexpression stimulated the growth of UMUC3 xenograft tumors and lung metastasis. CONCLUSIONS Astrocyte elevated gene-1 shows the ability to promote bladder cancer metastasis, which is causally linked to induction of signal transducer and activator of transcription 3 activation and epithelial-mesenchymal transition. Therefore, targeting astrocyte elevated gene-1 might offer therapeutic benefits in treating metastatic bladder cancer.
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Affiliation(s)
- Xiaoming Yang
- Department of Urology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Lei Shi
- Department of Urology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Chengzhi Yi
- Department of Urology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yang Yang
- Department of Urology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Liansheng Chang
- Department of Urology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Dongkui Song
- Department of Urology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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15
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Li X, Zhao Z, Zhang X, Yang S, Lin X, Yang X, Lin X, Shi J, Wang S, Zhao W, Li J, Gao F, Liu M, Ma N, Luo W, Yao K, Sun Y, Xiao S, Xiao D, Jia J. Klf4 reduces stemness phenotype, triggers mesenchymal-epithelial transition (MET)-like molecular changes, and prevents tumor progression in nasopharygeal carcinoma. Oncotarget 2017; 8:93924-93941. [PMID: 29212199 PMCID: PMC5706845 DOI: 10.18632/oncotarget.21370] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Accepted: 06/29/2017] [Indexed: 12/22/2022] Open
Abstract
The reprogramming factor Krüppel-like factor 4 (Klf4), one of the Yamanaka's reprogramming factors, plays an essential role in reprogramming somatic cells into induced pluripotent stem cells (iPSCs). Klf4 is dysregulated and displays divergent functions in multiple malignancies, but the biological roles of Klf4 in nasopharyngeal carcinoma (NPC) remain unknown. The present study revealed that Klf4 downregulation in a cohort of human NPC biopsies is significantly associated with invasive and metastatic phenotypes of NPC. Our results showed exogenous expression of Klf4 significantly inhibited cell proliferation, decreased stemness, triggered mesenchymal-epithelial transition (MET)-like molecular changes, and suppressed migration and invasion of NPC cells, whereas depletion of endogeneous Klf4 by RNAi reversed the aforementioned biological behaviors and characheristics. Klf4 silencing significantly enhanced the metastatic ability of NPC cells in vivo. In addition, CHIP assay confirmed that E-cadherin is a transcriptional target of Klf4 in NPC cells. Additional studies demonstrated that Klf4-induced MET-like cellular marker alterations, and reduced motility and invasion of NPC cells were mediated by E-cadherin. This study revealed the clinical correlation between Klf4 expression and epithelial-mesenchymal transition (EMT) biomarkers (including its target gene E-cadherin) in a cohort of NPC biopsies. Taken together, our findings suggest, for what we believe is the first time, that Klf4 functions as a tumor suppressor in NPC to decrease stemness phenotype, inhibit EMT and prevent tumor progression, suggesting that restoring Klf4 function may provide therapeutic benefits in NPC.
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Affiliation(s)
- Xiqing Li
- Guangdong Provincial Key Laboratory of Cancer Immunotherapy Research and Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, Southern Medical University, Guangzhou 510515, China.,Institute of Comparative Medicine & Laboratory Animal Center, Southern Medical University, Guangzhou 510515, China.,Department of Oncology, The People's Hosptial of Zhengzhou University, Zhengzhou 450003, China
| | - Zhunlan Zhao
- Guangdong Provincial Key Laboratory of Cancer Immunotherapy Research and Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, Southern Medical University, Guangzhou 510515, China.,Department of Oncology, The People's Hosptial of Zhengzhou University, Zhengzhou 450003, China
| | - Xiaoling Zhang
- Department of Physiology, Faculty of Basic Medical Sciences, Guilin Medical University, Guilin 541004, China
| | - Sheng Yang
- Guangdong Provincial Key Laboratory of Cancer Immunotherapy Research and Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Xia Lin
- Guangdong Provincial Key Laboratory of Cancer Immunotherapy Research and Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Xinglong Yang
- Guangdong Provincial Key Laboratory of Cancer Immunotherapy Research and Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Xiaolin Lin
- Guangdong Provincial Key Laboratory of Cancer Immunotherapy Research and Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Junwen Shi
- Guangdong Provincial Key Laboratory of Cancer Immunotherapy Research and Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Shengchun Wang
- Guangdong Provincial Key Laboratory of Cancer Immunotherapy Research and Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Wentao Zhao
- Guangdong Provincial Key Laboratory of Cancer Immunotherapy Research and Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Jing Li
- Guangdong Provincial Key Laboratory of Cancer Immunotherapy Research and Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Fei Gao
- Guangdong Provincial Key Laboratory of Cancer Immunotherapy Research and Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, Southern Medical University, Guangzhou 510515, China.,Department of Gastroenterology, The First Affiliated Hospital of Jinan University, Guangzhou 510630, China
| | - Mingyue Liu
- Department of Oncology, The People's Hosptial of Zhengzhou University, Zhengzhou 450003, China
| | - Ning Ma
- Department of Oncology, The People's Hosptial of Zhengzhou University, Zhengzhou 450003, China
| | - Weiren Luo
- The Third People's Hospital of Shenzhen, Guangdong Medical University, Shenzhen 518112, China
| | - Kaitai Yao
- Guangdong Provincial Key Laboratory of Cancer Immunotherapy Research and Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Yan Sun
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Shengjun Xiao
- Department of Pathology, The Second Affiliated Hospital, Guilin Medical University, Guilin 541199, China
| | - Dong Xiao
- Guangdong Provincial Key Laboratory of Cancer Immunotherapy Research and Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, Southern Medical University, Guangzhou 510515, China.,Institute of Comparative Medicine & Laboratory Animal Center, Southern Medical University, Guangzhou 510515, China
| | - Junshuang Jia
- Guangdong Provincial Key Laboratory of Cancer Immunotherapy Research and Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
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16
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Sun C, Ma P, Wang Y, Liu W, Chen Q, Pan Y, Zhao C, Qian Y, Liu J, Li W, Shu Y. KLF15 Inhibits Cell Proliferation in Gastric Cancer Cells via Up-Regulating CDKN1A/p21 and CDKN1C/p57 Expression. Dig Dis Sci 2017; 62:1518-1526. [PMID: 28421457 DOI: 10.1007/s10620-017-4558-2] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Accepted: 03/28/2017] [Indexed: 02/06/2023]
Abstract
BACKGROUND Krüppel-like factors (KLFs) have been identified in multi-cancers and act as oncogenes or tumor suppressors. The function of KLF15, one member of KLFs, has not been well elucidated, especially in gastric cancer (GC). AIMS This study was designed to investigate the prognostic value and biological functions of KLF15 in GC. METHODS KLF15 protein expression in GC patients was evaluated by immunohistochemistry assays in 50 paired GC tissues and adjacent normal tissues, and correlations between KLF15 expression and clinicopathological characteristics and prognosis were analyzed. Then, we investigated the over-expression of KLF15 on cell proliferation and its mechanism in GC cells. RESULTS KLF15 expression levels were significantly down-regulated in GC tissues compared to adjacent normal tissues. And KLF15 expression was negatively correlated with clinical stage, lymphatic metastasis, and distant metastasis. Furthermore, KLF15 expression could predict prognosis in patients with GC. Moreover, over-expression of KLF15 could inhibit cell proliferation partly via regulating CDKN1A/p21 and CDKN1C/p57. CONCLUSION These findings demonstrate that KLF15 plays a significant role in GC progression and could be a therapeutic target for GC.
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Affiliation(s)
- Chongqi Sun
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, No.300 Guangzhou Road, Nanjing, People's Republic of China
| | - Pei Ma
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, No.300 Guangzhou Road, Nanjing, People's Republic of China
| | - Yanfen Wang
- Department of Pathology, Yangzhou No.1 People's Hospital, Yangzhou, People's Republic of China
| | - Weitao Liu
- Department of Pathology, Nanjing Medical University, Nanjing, People's Republic of China
| | - Qinnan Chen
- Department of Oncology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, People's Republic of China
| | - Yutian Pan
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, No.300 Guangzhou Road, Nanjing, People's Republic of China
| | - Chenhui Zhao
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, No.300 Guangzhou Road, Nanjing, People's Republic of China
| | - Yingchen Qian
- Department of Pathology, Nanjing Medical University, Nanjing, People's Republic of China
| | - Jie Liu
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, No.300 Guangzhou Road, Nanjing, People's Republic of China
| | - Wei Li
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, No.300 Guangzhou Road, Nanjing, People's Republic of China. .,Department of Medical Oncology, Affiliated Sir Run Run Hospital of Nanjing Medical University, Nanjing, People's Republic of China.
| | - Yongqian Shu
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, No.300 Guangzhou Road, Nanjing, People's Republic of China. .,Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing, People's Republic of China. .,Department of Medical Oncology, Affiliated Sir Run Run Hospital of Nanjing Medical University, Nanjing, People's Republic of China.
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17
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Jin C, Feng Y, Ni Y, Shan Z. MicroRNA-610 suppresses osteosarcoma oncogenicity via targeting TWIST1 expression. Oncotarget 2017; 8:56174-56184. [PMID: 28915582 PMCID: PMC5593553 DOI: 10.18632/oncotarget.17045] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Accepted: 03/24/2017] [Indexed: 12/20/2022] Open
Abstract
Osteosarcoma is the most frequent primary bone tumor affects adolescents and young adults. Recently, microRNAs (miRNAs) are short, non-coding and endogenous RNAs that played as important roles in the initiation and progression of tumors. In this study, we try to explore the biological function and expression of miR-610 in the osteosarcoma. We showed that miR-610 expression was downregulated in the osteosarcoma tissues and cell lines. Elevated expression of miR-610 suppressed the osteosarcoma cell proliferation, cell cycle, invasion and EMT program. Moreover, overexpression of miR-610 increased sensitivity of MG-63 and U2OS cells to cisplatin. Twist1 was identified as a direct target gene of miR-610 in the osteosarcoma cell. Furthermore, we demonstrated that Twist1 was upregulated in the osteosarcoma tissues and cell lines. The expression of Twist1 was negatively associated with the expression of miR-610 expression in the osteosarcoma tissues. Ectopic expression of Twist1 inhibited the sensitivity of miR-610-overexpressing MG-63 cells to cisplatin. We also showed that overexpression of Twist1 increased the proliferation and invasion of miR-610-overexpressing MG-63 cells. These data indicated that ectopic expression of miR-610 suppressed the osteosarcoma cell proliferation, cell cylce, invasion and increased the sensitivity of osteosarcoma cells to cisplatin through targeting the Twist1 expression.
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Affiliation(s)
- Chi Jin
- The Third Department of Orthopaedics, Central Hospital of Cangzhou City, Cangzhou, Hebei, China
| | - Yongjian Feng
- The Fourth Department of Orthopaedics, Central Hospital of Cangzhou City, Cangzhou, Hebei, China
| | - Yongjian Ni
- The Third Department of Orthopaedics, Central Hospital of Cangzhou City, Cangzhou, Hebei, China
| | - Zhonglin Shan
- The Third Department of Orthopaedics, Central Hospital of Cangzhou City, Cangzhou, Hebei, China
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