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Medicine Research ›› 2018, Vol. 2 ›› Issue (3): 180012-.DOI: 10.21127/yaoyimr20180012

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What is Oral Tolerance?

Jingjing Chena, Wenhui Wua, b, *   

  1. a College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China;
    b Shanghai Engineering Research Center of Aquatic-Product Processing & Preservation, Shanghai 201306, China
  • Received:2018-09-03 Revised:2018-09-09 Online:2018-11-24 Published:2018-11-24
  • Supported by:
    The work was supported by the National Natural Science Foundation of China (No. 81502955), the Doctoral Scientific Research Foundation of Shanghai Ocean University (No. A2030214300077), the Young Teachers’ Training Program of Shanghai (No. A12056160002), the Plan of Innovation Action in Shanghai (No. 14431906000), and the Project Funded by Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening.

Abstract: Oral tolerance can be defined as the specific inhibition of the humoral and cellular immune response of an antigen by administration of the same antigen via the oral route. Because of its lack of toxicity, ease of administration and antigen specificity, oral tolerance is a very attractive approach for the treatment of autoimmune and inflammatory diseases. A variety of mechanisms have been proposed to explain the immune hyporesponsiveness to feeding antigens. It has been reported that low doses of orally administered antigens are beneficial for the production of regulatory cells, while high doses favor anergy or clonal deletion. In this paper, we discuss the mechanisms of oral tolerance induction.

 

Key words: oral tolerance, regulatory T cells, anergy, clonal deletion

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