自家免疫的理论自体识别(Self-recognition):自体识别是脊椎劫物对于化学构型物质属于自已抑或来自外界的识别能力,也就是说能识别那些化学构型物质是“自己的”或“不是自己的”。若外来细胞或大分子特质输入组织,其抗体或某些免疫性反应就会产生。正常时这种识别能力可防止对其自已的成份产生抗体,但对异种物质则发生反应和破坏作用。根据Burnet氏细胞群选择理论(clonal-s-election theory),在胚胎过程淋巴样系统的细胞抗体类型发生时,这种识别能力即已开始。当淋巴样细胞生长时,带有抗体类型的遗传物质则高速度地自发突变,而无选择的开创一切可能的抗体构型。每一突变细胞,以简单分裂的方式长成细胞群(clone of cells),且具有相同的抗体构型。在 Self-recognition: Self-recognition is the ability of spine robbers to recognize that chemical configurations belong to themselves or to the outside world, that is, to recognize those chemical configurations as “own” or “not my own”. If foreign cells or macromolecular traits are imported into the tissue, their antibodies or certain immune responses will develop. Normally this ability to recognize prevents its own components from producing antibodies, but it reacts and destroys foreign substances. According to Burnet’s theory of cell population selection (clonal-s-election theory), this type of recognition has begun when the type of cellular antibody in the embryonic lymphoid system occurs. As lymphoid cells grow, the genetic material with the antibody type spontaneously mutates at a high rate of speed without the option of creating all the possible antibody configurations. Each mutant cell grows in a simple, split manner into a clone of cells and has the same antibody configuration. in