modified antigen 中文意思是什麼

modified antigen 解釋
變性抗原
  1. Cea gene was transferred into human dcs, and specific anti - cancer effecs induced by the vaccine was observed. this test is part of my tutor ' s. hang you - tian has observed the induction of crcinembryonic antigen ( cea ) - specific cytotoxic t - lymphocyte responses in vitro when he transfected dcs with pcdna3 - cea, and has observed the immunity effects of the dcs ( pcea ) inoculateing against to ct 26 ( hcea + ) loaded in balb / c mice. after vaccination with the cea gene - modified dc, the survival time of the mice vaccinated with ct26 + ( cea + ) ws prolonged more potently than that of the mice vaccinatd with other dcs

    癌胚抗原（ carcinoebryonicantigen ， cea ）是一種研廠鄭州大學2002年碩士畢業論文轉染人癌胚抗原真核表達質粒的人樹突狀細胞的抗瘤作用究最為深入的腫瘤相關抗原（ tumorassociatiednigen ， taa ） ，在90的胃腸道腫瘤、 50的乳腺癌及70的非小細胞肺癌中有高水平的表達，是目前國際上公認的腫瘤標志物。
  2. To circumvent these deficits, novel antigen - delivery systems utilizing cytokine gene - modified tumor cells and dc or fusion of dc with tumor cells have resulted in induction of antitumor immunity. however, this u approach is difficult in some cases ( for example in breast cancer ) because only rarely has it been possible to isolate enough viable tumor cells from an individual to prepare the vaccine

    為了克服上述缺陷，有學者採用滅活的腫瘤細胞、腫瘤抗原提取物（包括腫瘤細胞裂解物、 it na和洗脫肽等）沖擊致敏dc或將腫瘤細胞與dc融合后再回輸體內以激發機體的抗腫瘤免疫應答，也取得了較好的療效。
  3. Methods employed to prepare vaccine include rumor cells genetically modified with cytokines, costimulatory molecules and tumor antigenic peptides, dendritic cells ( dc ) primed with tumor antigens in vitro or genetically modified with tumor antigens, or fusion of tumor cells with antigen presenting cells ( apc )

    現有的比較受到關注的制備腫瘤疫苗的方法有各種細胞因子、共刺激分子、腫瘤抗原肽等基因修飾的腫瘤細胞疫苗；體外抗原致敏的或腫瘤抗原肽基因修飾的樹突狀細胞疫苗；腫瘤細胞與抗原遞呈細胞融合疫苗等。
  4. Anti - igg antibody was immobilized onto the surface of gold electrode modified with a thin layer of protein a. biotin labeled anti - igg antibody and hrp - streptavidin were premixed to form network complex to be used as probes for amplifying the sensing response of antibody - antigen interaction

    抗體通過單層蛋白a固定到金電極表面，預先處理好的生物素化抗體和辣根過氧化物酶（ hrp ）標記的親和素形成的網狀復合物作為免疫反應信號的放大探針。
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