食品科学 ›› 2012, Vol. 33 ›› Issue (3): 243-247.doi: 10.7506/spkx1002-6630-201203051

• 营养卫生 • 上一篇    下一篇

鸡胸软骨酶解产物的表征及对类风湿关节炎大鼠的免疫调节作用

曹 慧,张忠慧,许时婴   

  1. 1.上海理工大学医疗器械与食品学院 2. 爱普香料集团股份有限公司 3. 江南大学食品学院
  • 出版日期:2012-02-15 发布日期:2012-02-14
  • 基金资助:
    上海市自然科学基金项目 (11ZR1424400)

Characterization of Pepsin Hydrolysate of Chicken Sternal Cartilage and Its Immunoregulatory Function in Rats with Rheumatoid Arthritis

CAO Hui,ZHANG Zhong-hui,XU Shi-ying   

  1. 1.Medical Equipment and Food Institute, University of Shanghai for Science and Technology, Shanghai 200093, China; 2. Apple Flavor & Fragrance Group Co. Ltd., Shanghai 201809, China; 3. School of Food Science and Technology, Jiangnan University, Wuxi 214036, China
  • Online:2012-02-15 Published:2012-02-14

摘要: 目的:探讨鸡软骨酶解产物的理化性质及对类风湿性关节炎(RA)大鼠的免疫调节作用。方法:采用胃蛋白酶水解鸡胸软骨,研究软骨酶解产物的组成及理化性质,并建立大鼠类风湿性关节炎模型,探讨软骨酶解产物对大鼠类风湿性关节炎的免疫调节作用。结果:鸡胸软骨酶解产物的主要成分为Ⅱ型胶原,变性温度为43.843℃,在pH值大于5.8,NaCl浓度大于0.9mol/L时,溶解度较低。口服鸡胸软骨酶解产物显著抑制了RA大鼠的足掌肿胀,并降低了其血清抗Ⅱ型胶原(CII)抗体及滑膜炎性细胞因子的水平。结论:鸡胸软骨酶解产物可能通过调节Th1细胞因子的表达、纠正失衡的Th1/Th2细胞因子网络及降低血清特异性抗CII抗体的水平对RA产生防治作用。

关键词: 鸡胸软骨酶解产物, 类风湿性关节炎, 免疫调节功能, 细胞因子

Abstract: Purpose: To investigate physicochemical properties of the pepsin hydrolysate of chicken sternal cartilage and its immunoregulatory function in rats with rheumatoid arthritis (RA). Methods: RA was induced in rats by collagen type II injections. Results: The pepsin hydrolysate consisted mainly of collagen type II with a denaturation temperature of 43.843℃. However, the solubility was low at pH above 5.8 and NaCl concentrations above 0.9 mol/L. Oral administration of the hydrolysate decreased significantly the swelling of paws, the serum level of anti-collagen type II antibody and secretion of proinflammatory cytokines in RA rats. Conclusion: The pepsin hydrolysate can prevent and treat RA probably by regulating the expression of Th1 and Th2 cytokines, correcting the imbalance of Th1/Th2 cytokines network, and decreasing the serum concentration of anti-collagen type II antibody.

Key words: chicken sternal cartilage hydrolysate, rheumatoid arthritis, immunoregulatory function, cytokines

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