口服Ⅱ型胶原诱导免疫耐受对大鼠类风湿性关节炎和创伤性骨性关节炎的影响

目的 :探讨应用口服Ⅱ型胶原诱导免疫耐受对创伤性骨性关节炎的影响。材料和方法 :应用切断大鼠膝关节内侧副韧带和内侧半月板的方法制备大鼠膝关节骨性关节炎的动物模型 ,以关节软骨组织学和组织化学染色以及T淋巴细胞转化实验为观察指标 ,观察口服Ⅱ型胶原对其病程发展的影响 ,并以经典的大鼠胶原引发关节炎症的类风湿性关节炎模型为对照。结果 :在创伤性骨性关节炎时 ,大鼠的T淋巴细胞增殖程度受到口服Ⅱ型胶原的抑制 ,从一个侧面反映针对Ⅱ型胶原的自家免疫可能参与了病变的发生和发展过程。但是 ,从病理改变来看 ,口服Ⅱ型胶原却不能抑制OA的发展 ,因此 ,创伤性骨性关节炎虽然在病变发生和发展过程中可能有免疫因素的参与 ,但是 ,相比RA ,这种参与不是主要的 ,OA的发病过程仍然是由于机械因素导致关节软骨破坏 ,在此基础上逐步发展起来的。口服Ⅱ胶原不能减轻OA的发病程度 ,因此不能应用口服Ⅱ型胶原的方法来治疗OA。

The Influences of Immune Suspression by Oral Administration of Type Ⅱ Collagen on Rat Rheumatic Osteoarthritis and Traumatic Osteoarthritis

Purpose: To study the influences of immune suspression by oral administration of type Ⅱ collagen on the pathogenesis of collagen induced arthritis(CIA) and traumatic oseoarthritis(OA) in rats; Methods: Rat knee traumatic osteoarthritis model made by excision of medial collateral ligament and medial meniscetomy and CIA model were applied for the observation of the changes on hisological and histochemical staining and the inhibition of T cells after oral administration of type Ⅱ collagen. Results: In OA, although the T cells were suspressed by oral administration of type Ⅱ collagen, however, the the pathogenesis was not hindered comparing with RA. It indicated that for OA, machanical factor is more important than the immunological factor, oral administration of type Ⅱ collagen has little effect on decreasing the speed of development of OA. It is not adequate to take the remedy of oral administation of type Ⅱ collagen for the treatment of OA.