The finger-like DC in the T cell area of peripheral immune organs belongs to mature DC, which is called IDC for short. It is characterized by: low expression pattern recognition receptor; Weak antigen processing ability; High levels of MHC, costimulatory molecules and adhesion molecules can effectively present and activate T.

However, it can also be immune dendritic cells, immature dendritic cells or interstitial DC (an immature DC).

Characterized in that the expression pattern recognition receptor can effectively recognize the ingested antigen; Strong antigen processing ability; Low-level expression of MHC class 2 molecules, costimulatory molecules and adhesion molecules, so the ability to present antigens and stimulate immune response is poor, so it will induce immune tolerance.

The 12th Five-Year Plan Textbook for General Higher Education: The National Planning Textbook for Medical Colleges and Universities: Medical Immunology systematically expounds the basic concepts, basic principles and basic experimental techniques of medical immunology, and discusses in detail antigens, antibodies, immunoglobulins, cellular immunity and specific reactions. In order to facilitate students' reading, a Chinese-English comparison table and a main bibliography of English professional vocabulary are attached at the end of this book.

This textbook carefully draws a large number of charts and summarizes them to strengthen readers' understanding and memory of what they have learned. The 12th Five-Year Plan Textbook of General Higher Education: National Planning Textbook of Medical Colleges and Universities: Medical Immunology is mainly used by five-year and seven-year medical students in medical colleges and universities all over the country, and is also suitable for scientists and medical workers engaged in related medical research.