Construction of retroviral vector with human brain-derived neurotrophic factor gene expression and in the fibroblasts expression

Yang, C.; Yan, R.; Guo, H.; Gu, X.

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 23(5): 588-591

2009


ISSN/ISBN: 1002-1892
PMID: 19514583
Document Number: 630626
To construct human brain-derived neurotrophic factor retroviral vector-pLXSN (hBDNF-pLXSN), and to evaluate the bioactivity of hBDNF. The genome mRNA was extracted from embryonic brain tissue of a 5-month-old infant, the hBDNF gene sequence was obtained with RT-PCR technology, and hBDNF-pLXSN constructed in vitro was used to infect the fibroblasts (NIH/3T3). The expression of hBDNF was identfied by the immunohistochemistry method, and the NIH/3T3 and BDNF biological activities were determined by culture of the PC12 cells and dorsal root ganglia. The hBDNF-pLXSN was constructed successfully by sequencing analyses. The infected NIH/3T3 showed positive expression of hBDNF. The infected NIH/3T3 could product hBDNF. Bioactivity of the products could support the PC12 cell survival and neurite growth in the primary cultures of dorsal root ganglia neurons of mice. hBDNF-pLXSN virus has the ability to infect NIH/3T3 and make it expressed and secreted hBDNF with the biological activity. It can be used to treat facial paralysis as a gene therapy.

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