The research of tolerance induced by oral collagen type Ⅱ peptide-cholera toxin B subunit-liposome complex
10.3760/cma.j.issn.0254-5101.2012.03.019
- VernacularTitle:口服Ⅱ型胶原肽-霍乱毒素B亚单位-脂质体复合物诱导免疫耐受的研究
- Author:
Ying BI
;
Xinxin ZHAO
;
Ning ZHANG
;
Zongqian WANG
- Publication Type:Journal Article
- Keywords:
Collagen type Ⅱ peptide;
Cholera toxin;
Liposome;
Immune tolerance;
Arthritis
- From:
Chinese Journal of Microbiology and Immunology
2012;32(3):264-267
- CountryChina
- Language:Chinese
-
Abstract:
ObjectiveTo investigate oral collagen type Ⅱ peptide-cholera toxin B subunit-liposome complex induce tolerance to collagen-induced arthritis (CIA).MethodsDBA/1 mice were divided into four groups,group Ⅰ:normal control,group Ⅱ:CIA control,group Ⅲ:oral collagen type Ⅱ peptidecholera toxin B subunit-liposome complex,and group Ⅳ:for testing IgG2a (on day 14 after primary immunization).Arthritis scores and histopathologic assessment were analyzed.The levels of serum IgG2a were examined by ELISA.ResultsThere was no arthritis development in group Ⅰ.The incidence of arthritis in group Ⅱ was higher than that in group Ⅲ ( 100％ vs 28.6％,P＜0.05).The arthritis score in group Ⅱ was higher than that in group Ⅲ (5.40 vs 0.4,3,P＜0.01).Histopathologic score was higher in group Ⅱ than that in group Ⅲ (16.00 vs 2.85,p＜0.05).Level of serum IgG2a of group Ⅰ was very 1ow(38 ng/ml).Mice of group Ⅱ produced significantly higher level of IgG2a than mice of group Ⅲ (3922 ng/ml vs 3219ng/ml,P＜0.05).IgG2a of group Ⅳ was 98 ng/ml which was significantly higher than that of group Ⅰ (P＜0.01 ).ConclusionOral collagen type Ⅱ peptide-cholera toxin B subunit-liposome complex could inhibit CIA progression through immune tolerance.
