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Lei W, Liu HB, Wang SB, Zhou XM, Zheng SD, Guo KN, Ma BY, Xia YL, Tan WS, Liu XY, Wang YG. Tumor suppressor in lung cancer-1 (TSLC1) mediated by dual-regulated oncolytic adenovirus exerts specific antitumor actions in a mouse model. Acta Pharmacol Sin 2013; 34:531-40. [PMID: 23503473 DOI: 10.1038/aps.2012.196] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
AIM The tumor suppressor in lung cancer-1 (TSLC1) is a candidate tumor suppressor of lung cancer, and frequently inactivated in primary non-small cell lung cancer (NSCLC). In this study, we investigated the effects of TSLC1 mediated by a dual-regulated oncolytic adenovirus on lung cancer, and the mechanisms underlying the antitumor actions. METHODS The recombinant virus Ad·sp-E1A(Δ24)-TSLC1 was constructed by inserting the TSLC1 gene into the dual-regulated Ad·sp-E1A(Δ24) vector, which contained the survivin promoter and a 24 bp deletion within E1A. The antitumor effects of Ad·sp-E1A(Δ24)-TSLC1 were evaluated in NCI-H460, A549, and H1299 lung cancer cell lines and the normal fibroblast cell line MRC-5, as well as in A549 xenograft model in nude mice. Cell viability was assessed using MTT assay. The expression of TSLC1 and activation of the caspase signaling pathway were detected by Western blot analyses. The tumor tissues from the xenograft models were examined using H&E staining, IHC, TUNEL, and TEM analyses. RESULTS Infection of A549 lung cancer cells with Ad·sp-E1A(Δ24)-TSLC1 induced high level expression of TSLC1. Furthermore, the Ad·sp-E1A(Δ24)-TSLC1 virus dose-dependently suppressed the viability of NCI-H460, A549, and H1299 lung cancer cells, and did not affect MRC-5 normal fibroblast cells. Infection of NCI-H460, A549, and H1299 lung cancer cells with Ad·sp-E1A(Δ24)-TSLC1 induced apoptosis, and increased activation of caspase-8, caspase-3 and PARP. In A549 xenograft model in nude mice, intratumoral injection of Ad·sp-E1A(Δ24)-TSLC1 significantly suppressed the tumor volume, and increased the survival rate (from less than 15% to 87.5% at d 60). Histological studies showed that injection of Ad·sp-E1A(Δ24)-TSLC1 caused tumor cell apoptosis and virus particle propagation in tumor tissues. CONCLUSION The oncolytic adenovirus Ad·sp-E1A(Δ24)-TSLC1 exhibits specific antitumor effects, and is a promising agent for the treatment of lung cancer.
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He G, Lei W, Wang S, Xiao R, Guo K, Xia Y, Zhou X, Zhang K, Liu X, Wang Y. Overexpression of tumor suppressor TSLC1 by a survivin-regulated oncolytic adenovirus significantly inhibits hepatocellular carcinoma growth. J Cancer Res Clin Oncol 2012; 138:657-70. [PMID: 22237452 DOI: 10.1007/s00432-011-1138-2] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2011] [Accepted: 12/20/2011] [Indexed: 12/16/2022]
Abstract
PURPOSE Hepatocellular carcinoma (HCC) is one of the most common malignant tumors worldwide. Oncolytic viruses represent a promising therapeutic agent or vehicle to human cancers due to their ability of selectively lysing cancer cells but not in normal cells. TSLC1, a novel tumor suppressor gene, was loss in many human cancers including HCC, not in normal cells. The current study is focused on the antitumor effect of TSLC1-armed survivin-regulated oncolytic adenovirus for HCC and to explore their molecular mechanism. METHODS The expression of tumor suppressor TSLC1 and survivin was detected by quantitative PCR. The recombinant virus Ad.SP-E1A-E1B((Δ55))-TSLC1 (brief name as SD55-TSLC1) was constructed by inserting TSLC1 gene into the dual-regulated oncolytic adenovirus vector Ad.SP-E1A-E1B((Δ55)). Then, we performed the antitumor experiments of SD55-TSLC1 in vitro and in nude mice xenografted with Huh7 liver cancer. RESULTS The expression of TSLC1 was lower in HCC cells than in normal cells, which implied TSLC1 is a tumor suppressor of liver cancer. Survivin expression is higher in detected HCC cells than in normal cells. The SD55-TSLC1 exhibited an excellent antitumor effect on HCC cell growth in vitro but does no or little damage to normal liver cells. Animal experiment further confirmed that SD55-TSLC1 achieved significant inhibition of Huh7 liver cancer xenografted growth. Furthermore, the mechanism of antitumor efficacy by SD55-TSLC1 was elucidated to be due to the activation of caspase apoptotic pathway including the inducement of caspase-3, caspase-8, and poly (ADP-ribose) polymerase cleavage. This is the first report of TSLC1 by oncolytic adenovirus with an excellent antitumor effect to liver cancer growth. CONCLUSION These data suggest that an oncolytic adenovirus expressing TSLC1 is effective and support that SD55-TSLC1 may be a potent antitumoral agent for future clinical trials of liver cancer.
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Affiliation(s)
- Guoqing He
- Xinyuan Institute of Medicine and Biotechnology, School of Life Sciences, Zhejiang Sci-Tech University, No. 2 Road Xiasha District, Hangzhou 310018, China
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Nawata H, Kashino G, Tano K, Daino K, Shimada Y, Kugoh H, Oshimura M, Watanabe M. Dysregulation of gene expression in the artificial human trisomy cells of chromosome 8 associated with transformed cell phenotypes. PLoS One 2011; 6:e25319. [PMID: 21980425 PMCID: PMC3183047 DOI: 10.1371/journal.pone.0025319] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2011] [Accepted: 08/31/2011] [Indexed: 11/26/2022] Open
Abstract
A change in chromosome number, known as aneuploidy, is a common characteristic of cancer. Aneuploidy disrupts gene expression in human cancer cells and immortalized human epithelial cells, but not in normal human cells. However, the relationship between aneuploidy and cancer remains unclear. To study the effects of aneuploidy in normal human cells, we generated artificial cells of human primary fibroblast having three chromosome 8 (trisomy 8 cells) by using microcell-mediated chromosome transfer technique. In addition to decreased proliferation, the trisomy 8 cells lost contact inhibition and reproliferated after exhibiting senescence-like characteristics that are typical of transformed cells. Furthermore, the trisomy 8 cells exhibited chromosome instability, and the overall gene expression profile based on microarray analyses was significantly different from that of diploid human primary fibroblasts. Our data suggest that aneuploidy, even a single chromosome gain, can be introduced into normal human cells and causes, in some cases, a partial cancer phenotype due to a disruption in overall gene expression.
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Affiliation(s)
- Hisakatsu Nawata
- Laboratory of Radiation Biology, Research Reactor Institute, Kyoto University, Osaka, Japan
| | - Genro Kashino
- Advanced Molecular Imaging Center, Medical School, Oita University, Oita, Japan
| | - Keizo Tano
- Laboratory of Radiation Biology, Research Reactor Institute, Kyoto University, Osaka, Japan
| | - Kazuhiro Daino
- Experimental Radiobiology for Children's Health Research Group, Research Center for Radiation Protection, National Institute of Radiological Sciences, Chiba, Japan
| | - Yoshiya Shimada
- Experimental Radiobiology for Children's Health Research Group, Research Center for Radiation Protection, National Institute of Radiological Sciences, Chiba, Japan
| | - Hiroyuki Kugoh
- Department of Biomedical Science, Institute of Regenerative Medicine and Biofunction, Graduate School of Medical Sciences, Tottori University, Tottori, Japan
| | - Mitsuo Oshimura
- Department of Biomedical Science, Institute of Regenerative Medicine and Biofunction, Graduate School of Medical Sciences, Tottori University, Tottori, Japan
| | - Masami Watanabe
- Laboratory of Radiation Biology, Research Reactor Institute, Kyoto University, Osaka, Japan
- * E-mail:
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Chen K, Wang G, Peng L, Liu S, Fu X, Zhou Y, Yu H, Li A, Li J, Zhang S, Bai Y, Zhang Y. CADM1/TSLC1 inactivation by promoter hypermethylation is a frequent event in colorectal carcinogenesis and correlates with late stages of the disease. Int J Cancer 2010; 128:266-73. [PMID: 20340131 DOI: 10.1002/ijc.25356] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2009] [Accepted: 03/04/2010] [Indexed: 01/28/2023]
Abstract
Cell adhesion molecule 1 (CADM1/TSLC1), a putative tumor suppressor involving in cell adhesion, proliferation and apoptosis, is frequently inactivated in several carcinomas due to promoter hypermethylation. But alterations of CADM1/TSLC1 in colorectal carcinogenesis and clinical significance have not been elucidated yet. The aim of this study was to determine the role of functional inactivation of CADM1/TSLC1 gene in colorectal tumorigenesis and its potential as a novel epigenetic marker for clinical assessment of patients with colorectal cancer. We measured CADM1/TSLC1 expression levels in 8 colorectal cancer cell lines, 54 primary colorectal carcinomas and their corresponding non-cancerous tissues by reverse transcription polymerase chain reaction, western blot analysis and immunohistochemistry. We analyzed CADM1/TSLC1 promoter methylation status by bisulfite genomic sequencing and the methylation special polymerase chain reaction, and evaluated its correlation with clinicopathological characteristics. All statistical tests were 2-sides. Downregulation of CADM1/TSLC1 expression was observed in 7 of 8 (88%) colorectal cancer cell lines and in 39 of 54 (72%) primary colorectal carcinomas. Hypermethylation of CADM1/TSLC1 promoter region occurred in 6 of 8 (75%) colorectal cancer cell lines and 32 of 54 (59%) primary colorectal carcinomas, and was correlated with advanced colorectal carcinoma. Epigenetic inactivation of CADM1/TSLC1 gene is a frequent alteration in development of colorectal cancer and can be a potential biomarker for molecular staging of patients with colorectal cancer.
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Affiliation(s)
- Kequan Chen
- Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
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Tsujiuchi T, Furukawa M, Obo Y, Yamasaki A, Hotta M, Kusunoki C, Suyama N, Mori T, Honoki K, Fukushima N. Infrequent mutation of lysophosphatidic Acid receptor-1 gene in hamster pancreatic duct adenocarcinomas and established cell lines. J Toxicol Pathol 2009; 22:89-92. [PMID: 22271981 PMCID: PMC3246023 DOI: 10.1293/tox.22.89] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2008] [Accepted: 12/09/2008] [Indexed: 11/19/2022] Open
Abstract
To evaluate the involvement of lysophosphatidic acid receptor-1 (LPA1) gene alteration in pancreatic carcinogenesis, we investigated mutations in the LPA1 gene in hamster pancreatic duct adenocarcinomas (PDAs) and established cell lines. Female Syrian golden hamsters received 30 mg/kg of N-nitrosobis(2-oxopropyl)amine (BOP) followed by repeated exposure to an augmentation pressure regimen consisting of a choline-deficient diet combined with DL-ethionine and then L-methionine and a further administration of 20 mg/kg BOP. A total of 10 PDAs obtained 10 weeks after beginning the experiment and three cell lines established from subcutaneously transplantable PDAs in syngeneic hamsters were examined for mutations using reverse transcription-polymerase chain reaction-single strand conformation polymorphism (RT-PCR-SSCP) analysis. A mutation was detected in only one PDA (1/10, 10%) in the form of a GGA to GTA (Gly to Val) transversion at codon 355, and no mutations were detected in the three cell lines. These results suggest that the LPA1 gene mutation may play roles in a limited fraction of BOP-induced pancreatic duct carcinogenesis in hamsters.
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Affiliation(s)
- Toshifumi Tsujiuchi
- Laboratory of Cancer Biology and Bioinformatics, Department of Life Science, Faculty of Science and Engineering, Kinki University, 3–4–1 Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Mami Furukawa
- Laboratory of Cancer Biology and Bioinformatics, Department of Life Science, Faculty of Science and Engineering, Kinki University, 3–4–1 Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Yumi Obo
- Laboratory of Cancer Biology and Bioinformatics, Department of Life Science, Faculty of Science and Engineering, Kinki University, 3–4–1 Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Ayako Yamasaki
- Laboratory of Cancer Biology and Bioinformatics, Department of Life Science, Faculty of Science and Engineering, Kinki University, 3–4–1 Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Mayuko Hotta
- Laboratory of Cancer Biology and Bioinformatics, Department of Life Science, Faculty of Science and Engineering, Kinki University, 3–4–1 Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Chie Kusunoki
- Laboratory of Cancer Biology and Bioinformatics, Department of Life Science, Faculty of Science and Engineering, Kinki University, 3–4–1 Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Naoko Suyama
- Laboratory of Cancer Biology and Bioinformatics, Department of Life Science, Faculty of Science and Engineering, Kinki University, 3–4–1 Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Toshio Mori
- RI Center, Nara Medical University, 840 Shijo-cho, Kashihara, Nara 634-8521, Japan
| | - Kanya Honoki
- Department of Orthopedic Surgery, Nara Medical University, 840 Shijo-cho, Kashihara, Nara 634-8521, Japan
| | - Nobuyuki Fukushima
- Laboratory of Molecular Neurobiology, Department of Life Science, Faculty of Science and Technology, Kinki University, 3–4–1 Kowakae, Higashiosaka, Osaka 577-8502, Japan
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Onishi M, Saito M, Sokuza Y, Mori C, Nishikawa T, Mori T, Tsujiuchi T. Absence of Mitochondrial DNA Displacement Loop Mutations in Hamster Pancreatic Duct Adenocarcinomas and Established Cell Lines. J Toxicol Pathol 2007. [DOI: 10.1293/tox.20.263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Affiliation(s)
- Mariko Onishi
- Laboratory of Cancer Biology and Bioinformatics, Department of Life Science, Faculty of Science and Engineering, Kinki University
- Department of Pathology, Osaka City University Medical School
| | - Mariko Saito
- Laboratory of Cancer Biology and Bioinformatics, Department of Life Science, Faculty of Science and Engineering, Kinki University
| | - Yui Sokuza
- Laboratory of Cancer Biology and Bioinformatics, Department of Life Science, Faculty of Science and Engineering, Kinki University
| | - Chiharu Mori
- Laboratory of Cancer Biology and Bioinformatics, Department of Life Science, Faculty of Science and Engineering, Kinki University
| | - Tomoki Nishikawa
- Laboratory of Cancer Biology and Bioinformatics, Department of Life Science, Faculty of Science and Engineering, Kinki University
| | | | - Toshifumi Tsujiuchi
- Laboratory of Cancer Biology and Bioinformatics, Department of Life Science, Faculty of Science and Engineering, Kinki University
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