鼠源IL-1β基因的克
[Abstract]:Rheumatoid arthritis (RA) is a chronic systemic autoimmune disease characterized by joint synovitis and symmetrical, destructive joint lesions. The persistent recurrent attacks of synovitis lead to articular cartilage and bone destruction, resulting in joint malformation and dysfunction. Vasculitis can invade many organs of the body and cause the system. For half a century, people have put forward a variety of hypotheses to try to explain RA, but because the pathogenesis of RA is too complicated, there is no effective therapeutic drug in clinic so far, so an effective drug for the treatment of RA has been needed in clinical. And the research and establishment of a reasonable and effective animal model of rheumatoid arthritis is developed. The key to developing effective drugs and developing effective treatment measures.
Interleukin cell -1 beta (IL-1 beta) is the first cytokine that can accelerate the destruction of human cartilage from the synovial membrane. Although the cause of arthritis is not conclusive, there is a view that cytokine plays a key role in the long-term course of arthritis. Now, the base of IL-1 beta receptor antagonist has been approved in FDA. The treatment of arthritis.RA is a long-term, slow, inflammatory factor mediated disease process. It is characterized by an incontrollable synovial hyperplasia, rich inflammatory cell infiltration and erosive infiltration of the joints. In the pathogenesis of RA, the interaction of cytokines includes IL-1 beta, TNF- alpha and other inflammatory properties. Factors. These factors play a decisive role in activating fibroblasts and long-term joint and cartilage destruction. In addition to the immune regulation of the body, IL-1 beta plays a role in many diseases, especially rheumatoid arthritis. It is beginning to develop a new anti cytokine method to treat rheumatoid arthritis.
In order to better evaluate the pharmacology and efficacy of IL-1 beta antibody and to study the biological characteristics of IL-1 beta in animal experiments, on the basis of the successful and efficient expression of human IL-1 beta, this study successfully cloned the mouse source IL-1 beta mature protein gene from the mouse thymus stimulated by LPS by RT-PCR technology. Through pSUMO prokaryotic cells. The expression vector was rebuilt to obtain highly bioactive soluble mouse IL-1 beta protein, which lay the foundation for further research and utilization of IL-1 beta.
This study also successfully established an animal model of chicken type II collagen (chicken CII+CFA) arthritis in SD rats, and through a series of exploratory studies, a new model of rat arthritis was prepared by intraperitoneal injection of chicken type II collagen and adjuvant combined with IL-1 beta (chicken CII+CFA+ IL-1 beta) on the basis of the successful establishment of the original model. The model group is obviously earlier than the model group that only injected chicken type II collagen (chicken CII+CFA). From the severity of inflammation, it is also significantly higher than the model group of chicken type II collagen (chicken CII+CFA). Therefore, IL-1 beta can be used to establish the RA model, which provides a new modeling method for the study of the pathogenesis of RA and the research and development of drugs for the treatment of drugs. In this study, the ELISA method was used to detect the anti CII antibody, IL-1 beta, IL-17 and TNF- alpha levels in the model animal serum. The results showed that the levels of anti CII antibody, IL-1 beta, IL-17 and TNF- alpha in the serum of the model animals were significantly higher than those of the control group (*P0.05). The titer of anti C II antibody, the level of cytokines, the level of cytokines, and the level of cytokines, and the levels of cytokines, and the levels of cytokines, and the levels of cytokines, and the levels of cytokines, and the levels of cytokines, and cytokines, in the serum of the model animals were significantly higher than those in the control group. The pathological changes and imaging changes are used as evaluation indicators to make a comprehensive and comprehensive evaluation of the rat model of arthritis. The results show that this method greatly enriches the way of RA rat model preparation.
【學(xué)位授予單位】:東北農(nóng)業(yè)大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2010
【分類號】:R-332;R593.22
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