羊胎盤免疫調(diào)節(jié)因子的免疫促進作用及其機理研究
發(fā)布時間:2018-09-04 08:47
【摘要】: 根據(jù)藥物對機體免疫功能的不同影響,免疫藥理學(xué)家一般把免疫調(diào)節(jié)劑分為免疫增強劑和免疫抑制劑兩大類。前者的效應(yīng)特點是促進免疫功能,而后者則表現(xiàn)為對免疫應(yīng)答的抑制。羊胎盤免疫調(diào)節(jié)因子是本室采用現(xiàn)代生物技術(shù)以山羊胎盤為原料制備的生物活性物質(zhì),初步活性分析發(fā)現(xiàn)其具有免疫增強活性。在分析總結(jié)目前國內(nèi)外有關(guān)動物源性免疫活性肽免疫增強作用特點研究資料的基礎(chǔ)上,本研究根據(jù)免疫增強劑藥效學(xué)研究原則,系統(tǒng)地探討羊胎盤免疫調(diào)節(jié)因子的免疫促進作用及其功能特點,并對其作用機理進行分析研究;進而,對進一步分離純化的單一組分之一的羊胎盤肽 Ⅰ的免疫調(diào)節(jié)作用進行初步研究,為羊胎盤活性成分的深入研究和開發(fā)提供基礎(chǔ)研究資料,為GPIF的申報提供臨床前的研究資料,為GPIF的臨床應(yīng)用提供科學(xué)的實驗依據(jù),對GPIF功能組分的分離純化和進一步的研究開發(fā)奠定基礎(chǔ)。 本研究共分四部分,分別就GPIF對BALB/c小鼠T細胞免疫功能、體液免疫功能和巨噬細胞免疫功能的促進作用進行系統(tǒng)研究,對GPIF免疫促進作用機理作部分探討。在此基礎(chǔ)上,對GPIF分離純化的單組分之一GPIF Ⅰ的T細胞免疫功能進行初步研究。 第一部分,從體內(nèi)、外兩方面,建立環(huán)磷酰胺所致免疫抑制模型、~(60)Coγ射線輻射所致免疫抑制模型,探討羊胎盤免疫調(diào)節(jié)因子對BALB/c小鼠T淋巴細胞免疫功能的促進作用及其作用機理。方法(1)體外,以正常T淋巴細胞、環(huán)磷酰胺所致免疫抑制T淋巴細胞、~(60)Coγ射線輻射所致免疫抑制T淋巴細胞為GPIF藥效學(xué)研究模型,MTT法測定ConA誘導(dǎo)的T淋巴細胞的增殖反應(yīng);直接免疫熒光抗體標記,FACS分析脾T淋巴細胞、胸腺淋巴細胞表達CD3、CD4、CD8、CD28、CD152陽性細胞百分率;ELISA法測定T淋巴細胞培養(yǎng)上清IL2、IFN-γ水平,間接法測定IL4的活性;(2)體內(nèi),分別建立環(huán)磷酰胺、~(60)Coγ射線輻射所致免疫抑制動物模型,以耳片差重法測定GPIF對小鼠DTH反應(yīng)能力的影響;建立60Coγ射線輻射所致免疫抑制動物模型,直接免疫熒光抗體標記、FACS分析GPIF對脾淋巴細胞、胸腺細胞表達CD3、CD4、CD8的影響,FACS分析GPIF對小鼠脾T淋巴細胞及其CD4~+、CD8~+亞群T淋巴細胞表達CD28、CD152的影響;ELISA法測定小鼠血清IL2、IFN-γ生成水平,間接
[Abstract]:According to the different effects of drugs on immune function, immunopharmacologists generally divide immune modulators into two categories: immune enhancers and immunosuppressants. The effect of the former is to promote the immune function, while the latter is the inhibition of the immune response. Goat placenta immunomodulatory factor is a bioactive substance prepared from goat placenta by modern biological technology in our laboratory. The preliminary activity analysis shows that it has immune enhancement activity. On the basis of analyzing and summarizing the current research data on the characteristics of immunological enhancement of animal derived immunoreactive peptides at home and abroad, this study was based on the principles of pharmacodynamics of immunoenhancers. The immune promoting effect and functional characteristics of goat placental immunomodulatory factor were systematically discussed, and the mechanism of its action was analyzed and studied. The immunomodulatory effects of sheep placental peptide 鈪,
本文編號:2221590
[Abstract]:According to the different effects of drugs on immune function, immunopharmacologists generally divide immune modulators into two categories: immune enhancers and immunosuppressants. The effect of the former is to promote the immune function, while the latter is the inhibition of the immune response. Goat placenta immunomodulatory factor is a bioactive substance prepared from goat placenta by modern biological technology in our laboratory. The preliminary activity analysis shows that it has immune enhancement activity. On the basis of analyzing and summarizing the current research data on the characteristics of immunological enhancement of animal derived immunoreactive peptides at home and abroad, this study was based on the principles of pharmacodynamics of immunoenhancers. The immune promoting effect and functional characteristics of goat placental immunomodulatory factor were systematically discussed, and the mechanism of its action was analyzed and studied. The immunomodulatory effects of sheep placental peptide 鈪,
本文編號:2221590
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