HSP65-HBV多表位融合蛋白乙肝治療性疫苗的研制
發(fā)布時間:2018-11-01 19:21
【摘要】:對于乙型肝炎,目前尚無理想的治療藥物。因此,新型的HBV治療性疫苗的研制成為國內(nèi)外的熱點(diǎn)研究課題。 新近的研究表明,HSP65可引導(dǎo)與其形成復(fù)合物或融合蛋白的抗原肽在樹突狀細(xì)胞內(nèi)經(jīng)MHC I類途徑加工遞呈,從而激活抗原特異性的細(xì)胞免疫反應(yīng)。此外,PADRE是一種Th表位,Th細(xì)胞在特異性CTL的產(chǎn)生和維持方面起重要作用。 因此,本文自行設(shè)計了一種乙肝治療性疫苗:卡介苗熱休克蛋白65-PADRE-HBV多表位融合蛋白(HSP65-HBV epi)。 該融合蛋白可在小鼠體內(nèi)誘生HBV特異性CTLs,刺激代表Th1途徑的IgG2a抗體的產(chǎn)生;可在體外刺激人DCs的成熟,并可通過DCs促進(jìn)自體CD8+ T細(xì)胞的增生并誘導(dǎo)HBV特異性CTLs的產(chǎn)生,這些特異性CTLs具有分泌IFN-γ的能力。 因此,HSP65-HBV epi融合蛋白非常有希望成為有效的乙肝治療性疫苗。
[Abstract]:There is no ideal therapy for hepatitis B. Therefore, the development of new HBV therapeutic vaccine has become a hot research topic at home and abroad. Recent studies have shown that HSP65 can induce antigenic peptides to form complexes or fusion proteins in dendritic cells via MHC I pathway to activate antigen-specific cellular immune responses. In addition, PADRE is a Th epitope, and Th cells play an important role in the production and maintenance of specific CTL. Therefore, we designed a therapeutic hepatitis B vaccine: BCG heat shock protein 65-PADRE-HBV multiepitope fusion protein (HSP65-HBV epi). The fusion protein could induce HBV specific CTLs, to stimulate the production of IgG2a antibody representing the Th1 pathway in mice. It can stimulate the maturation of human DCs in vitro, promote the proliferation of autologous CD8 T cells through DCs and induce the production of HBV specific CTLs. These specific CTLs have the ability to secrete IFN- 緯. Therefore, HSP65-HBV epi fusion protein is very promising as an effective therapeutic vaccine for hepatitis B.
【學(xué)位授予單位】:吉林大學(xué)
【學(xué)位級別】:博士
【學(xué)位授予年份】:2006
【分類號】:R392
本文編號:2304867
[Abstract]:There is no ideal therapy for hepatitis B. Therefore, the development of new HBV therapeutic vaccine has become a hot research topic at home and abroad. Recent studies have shown that HSP65 can induce antigenic peptides to form complexes or fusion proteins in dendritic cells via MHC I pathway to activate antigen-specific cellular immune responses. In addition, PADRE is a Th epitope, and Th cells play an important role in the production and maintenance of specific CTL. Therefore, we designed a therapeutic hepatitis B vaccine: BCG heat shock protein 65-PADRE-HBV multiepitope fusion protein (HSP65-HBV epi). The fusion protein could induce HBV specific CTLs, to stimulate the production of IgG2a antibody representing the Th1 pathway in mice. It can stimulate the maturation of human DCs in vitro, promote the proliferation of autologous CD8 T cells through DCs and induce the production of HBV specific CTLs. These specific CTLs have the ability to secrete IFN- 緯. Therefore, HSP65-HBV epi fusion protein is very promising as an effective therapeutic vaccine for hepatitis B.
【學(xué)位授予單位】:吉林大學(xué)
【學(xué)位級別】:博士
【學(xué)位授予年份】:2006
【分類號】:R392
【相似文獻(xiàn)】
相關(guān)博士學(xué)位論文 前1條
1 王華;HSP65-HBV多表位融合蛋白乙肝治療性疫苗的研制[D];吉林大學(xué);2006年
,本文編號:2304867
本文鏈接:http://sikaile.net/yixuelunwen/binglixuelunwen/2304867.html
最近更新
教材專著