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Memon A, Lee WK. KLF10 as a Tumor Suppressor Gene and Its TGF-β Signaling. Cancers (Basel) 2018; 10:E161. [PMID: 29799499 PMCID: PMC6025274 DOI: 10.3390/cancers10060161] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 05/15/2018] [Accepted: 05/23/2018] [Indexed: 12/17/2022] Open
Abstract
Krüppel-like factor 10 (KLF10), originally named TGF-β (Transforming growth factor beta) inducible early gene 1 (TIEG1), is a DNA-binding transcriptional regulator containing a triple C2H2 zinc finger domain. By binding to Sp1 (specificity protein 1) sites on the DNA and interactions with other regulatory transcription factors, KLF10 encourages and suppresses the expression of multiple genes in many cell types. Many studies have investigated its signaling cascade, but other than the TGF-β/Smad signaling pathway, these are still not clear. KLF10 plays a role in proliferation, differentiation as well as apoptosis, just like other members of the SP (specificity proteins)/KLF (Krüppel-like Factors). Recently, several studies reported that KLF10 KO (Knock out) is associated with defects in cell and organs such as osteopenia, abnormal tendon or cardiac hypertrophy. Since KLF10 was first discovered, several studies have defined its role in cancer as a tumor suppressor. KLF10 demonstrate anti-proliferative effects and induce apoptosis in various carcinoma cells including pancreatic cancer, leukemia, and osteoporosis. Collectively, these data indicate that KLF10 plays a significant role in various biological processes and diseases, but its role in cancer is still unclear. Therefore, this review was conducted to describe and discuss the role and function of KLF10 in diseases, including cancer, with a special emphasis on its signaling with TGF-β.
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Affiliation(s)
- Azra Memon
- Laboratory of Developmental Genetics, Department of Biomedical Sciences, School of Medicine, Inha University, Incheon 22212, Korea.
| | - Woon Kyu Lee
- Laboratory of Developmental Genetics, Department of Biomedical Sciences, School of Medicine, Inha University, Incheon 22212, Korea.
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Gutiérrez ML, Muñoz-Bellvis L, Sarasquete ME, Hernández-Mejía DG, Abad MDM, Bengoechea O, Corchete L, González-González M, García-García J, Gonzalez M, Mota I, Orfao A, Sayagues JM. Altered interphase fluorescence in situ hybridization profiles of chromosomes 4, 8q24, and 9q34 in pancreatic ductal adenocarcinoma are associated with a poorer patient outcome. J Mol Diagn 2014; 16:648-59. [PMID: 25157969 DOI: 10.1016/j.jmoldx.2014.06.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Revised: 05/21/2014] [Accepted: 06/24/2014] [Indexed: 02/09/2023] Open
Abstract
Most patients with pancreatic ductal adenocarcinoma (PDAC) die within 6 months of diagnosis. However, 20% to 25% patients undergoing total tumor resection remain alive and disease-free 5 years after diagnostic surgery. Few studies on tumor markers have predicted patient prognosis and/or survival. We evaluated the effect of tumor cytogenetic copy number changes detected by interphase fluorescence in situ hybridization on overall survival (OS) of 55 PDAC patients. The prognostic value of copy number changes showing an effect on OS was validated in an external cohort of 44 surgically resected PDAC patients by comparative genomic hybridization arrays, and the genes coded in altered chromosomes with prognostic value were identified by high-density single-nucleotide polymorphism arrays in 20 cases. Copy number changes of chromosomes 4 and 9q34 with gains of 8q24 were independently associated with shorter OS. On the basis of these three chromosomal alterations, a score is proposed that identifies patients with significantly different (P < 0.001) 5-year OS rates: 60% ± 20%, 16% ± 8%, and 0% ± 0%, respectively. Our results show an association between tumor cytogenetics and OS of PDAC patients and provide the basis for further prognostic stratification of patients undergoing complete tumor resection. Further studies to identify specific genes coded in these chromosomes and their functional consequences are necessary to understand the clinical effect of these changes.
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Affiliation(s)
- María L Gutiérrez
- Cytometry General Service-NUCLEUS, Department of Medicine and Cancer Center Research and Institute of Molecular Biology and Cellular Oncology, Institute of Biomedical Research of Salamanca, University of Salamanca, Salamanca, Spain
| | - Luis Muñoz-Bellvis
- Department of General and Digestive Surgery, University Hospital of Salamanca, Salamanca, Spain
| | - María E Sarasquete
- Hematology Service, Institute of Biomedical Research of Salamanca, University Hospital of Salamanca, Cancer Center Research and Institute of Molecular Biology and Cellular Oncology, Salamanca, Spain
| | - David G Hernández-Mejía
- Cytometry General Service-NUCLEUS, Department of Medicine and Cancer Center Research and Institute of Molecular Biology and Cellular Oncology, Institute of Biomedical Research of Salamanca, University of Salamanca, Salamanca, Spain
| | - María del Mar Abad
- Department of Pathology, University Hospital of Salamanca, Salamanca, Spain
| | - Oscar Bengoechea
- Department of Pathology, University Hospital of Salamanca, Salamanca, Spain
| | - Luis Corchete
- Hematology Service, Institute of Biomedical Research of Salamanca, University Hospital of Salamanca, Cancer Center Research and Institute of Molecular Biology and Cellular Oncology, Salamanca, Spain
| | - María González-González
- Cytometry General Service-NUCLEUS, Department of Medicine and Cancer Center Research and Institute of Molecular Biology and Cellular Oncology, Institute of Biomedical Research of Salamanca, University of Salamanca, Salamanca, Spain
| | - Jacinto García-García
- Department of General and Digestive Surgery, University Hospital of Salamanca, Salamanca, Spain
| | - Marcos Gonzalez
- Hematology Service, Institute of Biomedical Research of Salamanca, University Hospital of Salamanca, Cancer Center Research and Institute of Molecular Biology and Cellular Oncology, Salamanca, Spain
| | - Ines Mota
- Cytometry General Service-NUCLEUS, Department of Medicine and Cancer Center Research and Institute of Molecular Biology and Cellular Oncology, Institute of Biomedical Research of Salamanca, University of Salamanca, Salamanca, Spain
| | - Alberto Orfao
- Cytometry General Service-NUCLEUS, Department of Medicine and Cancer Center Research and Institute of Molecular Biology and Cellular Oncology, Institute of Biomedical Research of Salamanca, University of Salamanca, Salamanca, Spain.
| | - José M Sayagues
- Cytometry General Service-NUCLEUS, Department of Medicine and Cancer Center Research and Institute of Molecular Biology and Cellular Oncology, Institute of Biomedical Research of Salamanca, University of Salamanca, Salamanca, Spain
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Starr AN, Vexler A, Marmor S, Konik D, Ashkenasi-Voghera M, Lev-Ari S, Greif Y, Ben-Yosef R. Establishment and Characterization of a Pancreatic Carcinoma Cell Line Derived from Malignant Pleural Effusion. Oncology 2005; 69:239-45. [PMID: 16141719 DOI: 10.1159/000088071] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2004] [Accepted: 01/10/2005] [Indexed: 12/18/2022]
Abstract
BACKGROUND/AIMS A novel cell line, designated p34, was developed from the malignant pleural effusion of a patient with carcinoma of pancreas. The objective of this work was to characterize this cell line. METHOD The in vitro studies included karyotype analysis, immunohistochemistry, XTT cell proliferation assay, analysis of the cell cycle by FACS and cell sensitivity to chemotherapeutic drugs and irradiation. Subcutaneous and intra-spleen inoculations into nude mice were carried out to study the tumorigenicity and the metastatic tendency of this cell line. RESULTS The p34 cell line showed typical morphological characteristics of epithelial pancreatic tumor cells. The cells were hyperdiploid with a modal number of 48, and had two markers, deletion in the short arm of chromosome 2 and duplication of the short arm of chromosome 8. The doubling time was 16 h. Subcutaneous inoculation of the cells into nude mice yielded 100% tumorigenicity, and intra-spleen inoculation resulted in extensive intra-abdominal spread. The antiproliferative effect of chemotherapy (gemcitabine, cisplatin, taxol and vinorelbine), chemopreventive agents (celecoxib and curcumin) and radiotherapy showed dose-dependent cytotoxicity. CONCLUSIONS This p34 cell line can be used as a new model for studying various aspects of the biology of human pancreatic cancer and potential treatment approaches for the disease.
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Affiliation(s)
- A N Starr
- Lung and Allergy, Tel Aviv Sourasky Medical Center and Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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Zhu J, Abbruzzese JL, Izzo J, Hittelman WN, Li D. AURKA amplification, chromosome instability, and centrosome abnormality in human pancreatic carcinoma cells. ACTA ACUST UNITED AC 2005; 159:10-7. [PMID: 15860351 DOI: 10.1016/j.cancergencyto.2004.09.008] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2004] [Revised: 09/13/2004] [Accepted: 09/13/2004] [Indexed: 12/07/2022]
Abstract
To test the hypothesis that AURKA amplification contributes to pancreatic tumorigenesis by increasing centrosome abnormality and chromosome instability, the current study explored the associations between AURKA amplification, chromosome instability, centrosome abnormality, and the expression of several important proteins that are involved in cell proliferation (Ki-67), cell cycle regulation (p53, p16), and apoptosis (survivin) in 12 human pancreatic carcinoma cell lines. Using fluorescence in situ hybridization (FISH), we observed that 5 of the 12 cell lines had an AURKA amplification index (AI) (percentage of cells with more than three signals) >60%. Both the AURKA AI and the average number of signals per cell (ANSPC) were significantly associated with the copy number of chromosome 9 but not chromosome 17. The AURKA ANSPC was positively associated with the percentage of cells with the centrosome abnormality. Furthermore, centrosome abnormality was significantly associated with the frequency of cells with abnormal nuclei and abnormal mitotic figures, but no direct association was detected between the frequency of centrosome abnormalities and chromosome instabilities. The AURKA AI was also associated with a lower expression of Ki-67, a higher expression of survivin, and the lack of expression of p16. These associations support our hypothesis that AURKA amplification contributes to pancreatic carcinogenesis by increasing chromosome instability and centrosome abnormality.
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Affiliation(s)
- Jijiang Zhu
- Department of Gastrointestinal Medical Oncology, The University of Texas M.D. Anderson Cancer Center, Houston, TX 77030, USA
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Antonello D, Moore PS, Zamboni G, Falconi M, Scarpa A. Absence of mutations in the transforming growth factor-beta inducible early gene 1, TIEG1, in pancreatic cancer. Cancer Lett 2002; 183:179-83. [PMID: 12065093 DOI: 10.1016/s0304-3835(01)00802-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Pancreatic cancers frequently have defects in components of the transforming growth factor-beta (TGF-beta) signaling pathway. TIEG1 (TGF-beta inducible early gene) is a recently characterized transcription factor regulated by TGF-beta that induces apoptosis when overexpressed in pancreatic adenocarcinoma cell lines. Alterations on chromosome 8q, where TIEG1 is located, are also relatively frequent in pancreatic cancers. To determine if TIEG1 may be involved in the tumorigenesis of pancreatic cancer, we performed mutational screening of this gene in 22 pancreatic cancer cell lines. No sequence alterations were observed. Reverse transcription-polymerase chain reaction analysis was also performed to rule out the possibility that the expression of the gene is altered by genetic events other than mutation. Likewise, no alterations in expression were found. Thus, an essential role of TIEG1 in pancreatic cancer can be excluded.
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Affiliation(s)
- Davide Antonello
- Department of Pathology, Università di Verona, Strada Le Grazie 8, 37134, Verona, Italy
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