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04:29 Jan 9, 2002
English to Malay translations [Non-PRO] Science - Textiles / Clothing / Fashion / textiles
English term or phrase:MHC
MHC stands for major histocompatibility complex. It is a series of genes that code for proteins unique to each individual. Basically, these genes code for two classes of proteins, referred to as Class I MHC molecules and Class II MHC molecules. Each individual's Class I and Class II MHC proteins differ from other individual's Class I and Class II MHC proteins, the diffrence being genetically determined. These proteins, which are like individual fingerprints, play an important role in enabling the immune system to recognize self from non self. Class II MHC proteins are produced by macrophages and helper T cells. Class I MHC proteins are expressed by virtually all other cells of the body. Class II MHC proteins are used by macrophages in the procesing of antigens for presentation to helper T cells.
A consideration of immune processes reveals that
1. there is tremendous communication and cooperation between different elements of the immune system. This comunication can lead to modulation, either amplification or suppression of the immune response. It gives direction, or intelligence, to the immune response. communication and cooperation rely heavily on cell surface receptors and chemical messages released by wbc's.
2.There is a great diversity of antibodies and cell surface receptors. The immune system has enough different antibodies and cell surface receptors to match virtually every antigen it might encounter
3. There is an ability to distinguish self from non self , largely through the presence of unique, genetically determined proteins, the Class I and II MHC proteins
4. there is a wide variety of immune mechanisms which, when activated, are capable of destroying antigens
Explanation: Lihat jawapan saya bagi MHC protein.
"Kompatibiliti" boleh digunakan menggantikan "keserasian tisu" namun pada hemat saya syor di atas lebih jelas. Perkataan "major" telah diterima pakai misalnya Gangguan (penyakit)Kemurungan Major kini diterima sbg padanan bagi Major Depressive Disorder