Similar to other immune-mediated diseases, IgG4-related disease (IgG4-RD) is the disease that develops in genetically susceptible individuals exposed to external or endogenous antigens. In the present study, it was confirmed that MAG (myelin-associated glycoprotein) antibodies (IgG, IgG4, and IgM) were detected by immunofluorescence (IFA) in serum of the patients with IgG4-RD.In vivo, the levels of prolactin and Th2 cytokines in CGRP(+/-)rats were higher than those in wild-type. Our findings indicate that the presence of CGRP-deficiency-mediated MAG antibodies is a probable molecular basis for the initial events which were triggered in IgG4-RD immune responses via prolactin upregulation.
与其他免疫介导的疾病类似,IgG4相关疾病(IgG4 - RD)是在接触外源性或内源性抗原的遗传易感个体中发生的疾病。在本研究中,通过免疫荧光法(IFA)证实IgG4 - RD患者血清中可检测到髓鞘相关糖蛋白(MAG)抗体(IgG、IgG4和IgM)。在体内,降钙素基因相关肽(CGRP)(+/-)大鼠的催乳素和Th2细胞因子水平高于野生型。我们的研究结果表明,CGRP缺乏介导的MAG抗体的存在可能是IgG4 - RD免疫反应中通过催乳素上调引发初始事件的分子基础。