Construction of a recombinant adenovirus containing MMP-9 signal peptide and PEX domain of human MMP-2 and study of its activity / 中国肿瘤生物治疗杂志
Chinese Journal of Cancer Biotherapy
;
(6)1996.
Article
in Chinese
| WPRIM
| ID: wpr-587255
ABSTRACT
Objective:
To construct a recombinant adenovirus (abbreviated as ET-M9-PEX) containing MMP-9 signal peptide and noncatalytic carboxyl-terminal hemopexin domain of human MMP-2, and to use the constructed adenovirus as a drug bioreactor in vivo to enhance the expression of an anti-angiogenesis factor for treatment of tumor by a gene therapy strategy.Methods:
Adenovirus vector containing M9-PEX gene was constructed by PCR and gene recombination, and was packaged and amplified in L293 cells to obtain ET-M9-PEX recombinant adenovirus with infective ability. The expression and secretion of PEX in ET-M9-PEX-infected cells were detected by Western-blotting and immunofluorescent staining. The inhibitory effect of ET-M9-PEX-conditioned medium on EC cells proliferation was detected by growth curve and its inhibitory effects on angiogenesis and tumor growth were determined by chicken chorioallantoic membrane (CAM) assay in vivo.Results:
ET-M9-PEX was successfully constructed and the expression and secretion of PEX in ET-M9-PEX-infected cells were verified. The ET-M9-PEX conditioned medium significantly inhibited the proliferating rate of EC cells. The tumor weights from ET-M9-PEX-infected PG cells in CAM and gradeⅠvessel number were reduced by 57.57%(P
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Chinese Journal of Cancer Biotherapy
Year:
1996
Type:
Article
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