Humoral and cellular immune are abnormal in DM/ PM. Tumor tissue had cross antigenicity with normal muscle fibers, tendon sheath, blood vessels and connective tissue in vivo. Tumor antibodies can damage the normal tissues.

  • 皮肌炎患者存在体液及细胞免疫功能异常,肿瘤组织与体内正常的肌纤维、腱鞘、血管和结缔组织等有交叉抗原性,肿瘤产生的抗体可损害这些正常组织。

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