The endocrine thymus produces several hormone like peptides which control development of the thymic dependent lymphoid system and participate in the process of immune regulation.
胸腺产生胸腺素等肽类激素，控制胸腺依赖淋巴细胞的发育并参与免疫调节过程。
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The effect of thymic peptide hormone on the changes of PNA receptors on the cell surface of mouse thymocyte was found to be both concentration and time dependent.