This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/
Up-regulating effect of hepatitis C virus core protein on laminin B1 chain gene promoter
Qian Yang, Yan Liu, Jun Cheng, Jian-Jun Wang, Yan-Jie Yang, Shu-Lin Zhang
Qian Yang, Yan Liu, Jun Cheng, Jian-Jun Wang, Yan-Jie Yang, Shu-Lin Zhang, Gene Therapy Research Center, Institute of Infectious Diseases, 302 Hospital of PLA, Beijing 100039, China
Supported by: the National Natural Science Foundation of China, No. C03011402, No. C30070689, and Returned Scholarship of General Logistics Department of PLA, No. 98H038
Correspondence to: Jun Cheng, MD, PhD, Professor, Gene Therapy Research Center, Institute of Infectious Diseases, 302 Hospital of PLA, 100 Xisihuanzhong Road, Beijing 100039, China. cj@genetherapy.com.cn
Received: January 11, 2003 Revised: February 20, 2003 Accepted: March 21, 2003 Published online: July 15, 2003
AIM
HCV core protein is a potential transactivator for a broad spectrum of hepatocellular genes. To investigate activity of HCV core protein on laminin B1 chain promoter, we use co-transfection methods and reporter gene expression in hepatoblastoma cell.
METHODS
LAMB-p sequence was identified in GenBank by bioinformatics and amplified from HepG2 genome by polymerase chain reaction (PCR). The amplified product was cloned into pCAT3 vector. The NIH 3T3 and COS-7 cell line were transfected by pCAT3-LAMB-p, the NIH 3T3 cell line was co-transfected by pCAT3-LAMB-p and pcDNA3.1(-)-core. The choloraphenical acetyltransferase (CAT) activity was detected by enzyme-linked immunosorbent assay (ELISA) kit.
RESULTS
In all cell lines, we found pCAT3-LAMB-p had higher activity of CAT than pCAT3-basic by ELISA kit. The expression of CAT in co-transfection was 3.3 times as higher as that of pCAT3-LAMB-p plasmid.
CONCLUSION
HCV-core protein has transactivity on LAMB promoter, and this result is implicating in the pathogenesis of fibrosis related to HCV infection
Key Words: N/A
Citation: Yang Q, Liu Y, Cheng J, Wang JJ, Yang YJ, Zhang SL. Up-regulating effect of hepatitis C virus core protein on laminin B1 chain gene promoter. Shijie Huaren Xiaohua Zazhi 2003; 11(7): 955-958
Shrivastava A, Manna SK, Ray R, Aggarwal BB. Ectopic expression of hepatitis C virus core protein differentially regulates nuclear transcription factors.J Virol. 1998;72:9722-9728.
[PubMed] [DOI]
Flichman D, Cello J, Castano G, Campos R, Sookoian S. In vivo down regulation of HIV replication after hepatitis C superinfection.Medicina (B Aires). 1999;59:364-366.
[PubMed] [DOI]
Alter MJ, Margolis HS, Krawczynski K, Judoson FN, Mares A, Alexander WJ, Hu PY, Miller JK, Gerber MA, Sampliner RE. The natural history of community-acquired hepatitis C in the United States. the sentinel counties chronic non-A, non-B hepatitis study team.N Engl J Med. 1992;327:1899-1905.
[PubMed] [DOI]
Saito I, Miyamura T, Ohbayashi A, Harada H, Katayama T, Kikuchi S, Watanabe Y, Koi S, Onji M, Ohta Y. Hepatitis C virus infection is associated with the development of hepatocellular carcinoma.Proc Natl Acad Sci USA. 1990;87:6547-6549.
[PubMed] [DOI]
MacDonald AJ, Duffy M, Brady MT, McKiernan S, Hall W, Hegarty J, Curry M, Mills KH. CD4 T helper type 1 and regulatory T cells induced against the same epitopes on the core protein in hepatitis C virus-infected persons.J Infect Dis. 2002;185:720-727.
[PubMed] [DOI]
Honda M, Kaneko S, Shimazaki T, Matsushita E, Kobayashi K, Ping LH, Zhang HC, Lemon SM. Hepatitis C virus core protein induces apoptosis and impairs cell-cycle regulation in stably transformed Chinese hamster ovary cells.Hepatology. 2000;31:1351-1359.
[PubMed] [DOI]
Chung YM, Park KJ, Choi SY, Hwang SB, Lee SY. Hepatitis C virus core protein potentiates TNF-alpha-induced NF-kappaB activation through TRAF2-IKKbeta-dependent pathway.Biochem Biophys Res Commun. 2001;284:15-19.
[PubMed] [DOI]
Erhardt A, Hassan M, Heintges T, Haussinger D. Hepatitis C virus core protein induces cell proliferation and activates ERK, JNK, and p38 MAP kinases together with the MAP kinase phosphatase MKP-1 in a HepG2 Tet-Off cell line.Virology. 2002;292:272-284.
[PubMed] [DOI]
Kato N, Yoshida H, Kioko Ono-Nita S, Kato J, Goto T, Otsuka M, Lan K, Matsushima K, Shiratori Y, Omata M. Activation of intracellular signaling by hepatitis B and C viruses: C-viral core is the most potent signal inducer.Hepatology. 2000;32:405-412.
[PubMed] [DOI]
Chang J, Yang SH, Cho YG, Hwang SB, Hahn YS, Sung YC. Hepatitis C virus core from two different genotypes has an oncogenic potential but is not sufficient for transforming primary rat embryo fibroblasts in cooperation with the H-ras oncogene.J Virol. 1998;72:3060-3065.
[PubMed] [DOI]
Lee S, Park U, Lee YI. Hepatitis C virus core protein transactivates insulin-like growth factor II gene transcription through acting concurrently on Egr1 and Sp1 sites.Virology. 2001;283:167-177.
[PubMed] [DOI]
Otsuka M, Kato N, Lan K, Yoshida H, Kato J, Goto T, Shiratori Y, Omata M. Hepatitis C virus core protein enhances p53 function through augmentation of DNA binding affinity and transcriptional ability.J Biol Chem. 2000;275:34122-34130.
[PubMed] [DOI]
Lu W, Lo SY, Chen M, Wu K, Fung YK, Ou JH. Activation of p53 tumor suppressor by hepatitis C virus core protein.Virology. 1999;264:134-141.
[PubMed] [DOI]
Pikkarainen T, Eddy R, Fukushima Y, Byers M, Shows T, Pihlajaniemi T, Saraste M, Tryggvason K. Human laminin B1 chain. A multidomain protein with gene (LAMB1) locus in the q22 region of chromosome 7.J Biol Chem. 1987;262:10454-10462.
[PubMed] [DOI]
Graf J, Ogle RC, Robey FA, Sasaki M, Martin GR, Yamada Y, Kleinman HK. A pentapeptide from the laminin B1 chain mediates cell adhesion and binds the 67 000 laminin receptor.Biochemistry. 1987;26:6896-6900.
[PubMed] [DOI]
Nelson J, Scott WN, Allen WE, Wilson DJ, Harriott P, McFerran NV, Walker B. Murine epidermal growth factor peptide (33-42) binds to a YIGSR-specific laminin receptor on both tumor and endothelial cells.J Biol Chem. 1996;271:26179-26186.
[PubMed] [DOI]
Maher JL, McGuire R. Extracellular matrix gene expression increases preferentially in rat lipocytes and sinusoidal endothelial cell during hepatic fibrosis in vivo.J Clin Invest. 1990;86:1641-1648.
[PubMed] [DOI]
Geerts A, Greenwel P, Cunningham M, De Bleser P, Rogiers V, Wisse E, Rojkind M. Identification of connective tissue gene transcripts in freshly isolated parenchymal, endothelial, Kuppffer and fat-storing cells by Northern hybridization analysis.J Hepatol. 1993;19:148-158.
[PubMed] [DOI]
Soini Y, Autio-Harmainen H. Synthesis and degradation of basement membranes in benign and malignant salivary gland tumours. A study by in situ hybridization.J Pathol. 1993;170:291-296.
[PubMed] [DOI]
Soini Y, Hurskainen T, Hoyhtya M, Oikarinen A, Autio-Harmainen H. 72 KD and 92 KD type IV collagenase, type IV collagen, and laminin mRNAs in breast cancer: a study by in situ hybridization.J Histochem Cytochem. 1994;42:945-951.
[PubMed] [DOI]