發明
中華民國
097139140
I 396548
新穎之腸病毒71型蛋白及製備方法NEW ENTEROVIRUS TYPE 71 PROTEIN AND METHOD FOR PRODUCTION
國立中興大學
2013/05/21
利用基因轉殖技術改變乳組成份且將乳腺組織作為生物反應器進行醫藥蛋白之量產,是目前生物科技之一大突破。目前在腸病毒之治療上並沒有可用之特效藥,只能採用支持性療法,故疫苗之研發為當務之急,本發明利用乳腺專一表現型基因轉殖系統成功產製含有腸病毒71型高抗原性外鞘蛋白VP1於哺乳動物乳汁中;經以口服疫苗方式哺育幼鼠後於體內產生抗腸病毒之抗體,能夠有效抵抗腸病毒71型之攻毒與感染。本發明專利具有開發成新式的口服疫苗乳啶之抗腸病毒製劑,其係用於保護對抗腸病毒。亦提供生產該蛋白之轉基因動物,包含該蛋白之組合物,以及其製備方法。 A high level of recombinant VP1 protein (2.51 mg/ml) was expressed and secreted into the milk of transgenic mice. Mouse pups that received VP1 transgenic milk orally demonstrated relatively better health conditions after challenge with the respective virus as compared with the non-transgenic milk fed group; moreover, the mice fed with the VP1-milk had body weights similar to those of the PBS placebo control groups. According to the serum-neutralization assay and serum antibody detection, the littermates suckling VP1-milk generated antibodies specific to EV71. Our data suggest that EV71 VP1-containing milk is suitable for development as a potential oral vaccine.
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