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In detail, antigen-presenting cells recognize an allergen which has invaded the body, and then display the allergen, thus inducing Th0 cells to differentiate into Th2 cells in the presence of IL-4.  Th2 cells secrete cytokines such as IL-4, IL-5 and IL-13.  In turn, IL-4 and IL-5 act on B cells to induce the production of IgE.

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scswpiyly: ½ð±Ò+10, ·­ÒëEPI+1, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸, thanks! 2012-06-14 23:14:59
In detail, antigen-presenting cells recognize an allergen which has invaded the body, and then display the allergen, thus inducing Th0 cells to differentiate into Th2 cells in the presence of IL-4. Ïêϸ˵À´£¬¿¹Ô­µÝ³Êϸ°ûʶ±ð½øÈëÌåÄڵĹýÃôÔ­£¬È»ºóµÝ³Ê¹ýÃôÔ­£¬ÓÕµ¼Th0ϸ°ûÔÚ°×½éËØ4´æÔÚÏ·ֻ¯ÎªTh2ϸ°û¡£ Th2 cells secrete cytokines such as IL-4, IL-5 and IL-13.  Th2ϸ°û·ÖÃÚÖîÈç°×½éËØ4¡¢5ºÍ13µÈϸ°ûÒò×Ó¡£In turn, IL-4 and IL-5 act on B cells to induce the production of IgE.·´¹ýÀ´£¬°×½éËØ4ºÍ5×÷ÓÃÓÚBϸ°ûÓÕµ¼IgEµÄÉú³É¡£
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