细胞因子是一类由细胞分泌的小分子蛋白质或多肽，能够在细胞间传递信号，调节免疫反应、炎症反应及造血过程等多种生物学活动。它们不具备直接杀灭细胞或病原体的作用，但通过影响细胞的分化、增殖和活化，在免疫系统功能中起着关键调节作用。ProSpec 细胞因子（Cytokines）

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