title: [Construction and identification of HBD-2 transgenic mice].
abstract: Human beta defensin 2 (HBD-2) may play an important role in human defense against infection. Its antimicrobial capacity has been fully documented in in vitro study. In order to evaluae its in vivo effects, we developed an HBD-2 transgenic mouse model. The HBD-2 minigene containing CMV promoter, full length of HBD-2 cDNA and BGH polyA tail was generated by PCR amplification and introduced into the fertilized oocytes of C57 X ICR hybridized mouse by microinjection, and offspring were produced. DNA was isolated from the tails of the mouse pups, and the HBD-2 minigene incorporation was analyzed by PCR using HBD-2 specific primers. The HBD-2 gene expression in the multi-tissues of transgenic mice was determined at mRNA level by RT-PCR and at peptide level by immunohistological staining with the use of HBD-2 monoclonal antibody. The results showed that among 17 F0 transgenic mice, HBD-2 positive signal was determined by PCR in 4 mice, suggesting that HBD-2 minigene has been incorporated into the offspring mice. Meanwhile, a widespread expression of HBD-2 mRNA and peptide was detected in the F1 transgenic mice's multi-tissues such as trachea, lung, intestine, esophagus, testis, spleen, skin, endothelium and brain.
authors.affiliation: Research Unit of Infection and Immunity, West China Medical Center, Sichuan University, Chengdu 610041, China.
authors.forename: Shu
authors.initials: S
authors.lastname: Zhang
authors.forename: Ning
authors.initials: N
authors.lastname: Huang
authors.forename: Xinyu
authors.initials: X
authors.lastname: Zhao
authors.forename: Qinsong
authors.initials: Q
authors.lastname: Wang
authors.forename: Yang
authors.initials: Y
authors.lastname: Yang
authors.forename: Yong
authors.initials: Y
authors.lastname: Cheng
authors.forename: Huiming
authors.initials: H
authors.lastname: Ju
authors.forename: Wenbi
authors.initials: W
authors.lastname: Xiong
authors.forename: Guojun
authors.initials: G
authors.lastname: Chu
authors.forename: Xuan
authors.initials: X
authors.lastname: Li
authors.forename: Boyao
authors.initials: B
authors.lastname: Wang
mesh_terms: D000818:Animals; D000890:Anti-Infective Agents; D006801:Humans; D051379:Mice; D008810:Mice, Inbred C57BL; D008813:Mice, Inbred ICR; D008822:Mice, Transgenic; D023421:Models, Animal; D016133:Polymerase Chain Reaction; D012333:RNA, Messenger / Q000032:analysis / Q000096:biosynthesis / Q000235:genetics; D023083:beta-Defensins / Q000096:biosynthesis* / Q000235:genetics
chemical_list: D000890:Anti-Infective Agents; C106641:DEFB4A protein, human; D012333:RNA, Messenger; D023083:beta-Defensins