血小板源生长因子（ＰＤＧＦ）是由多种细胞分泌的，具有促细胞分裂增殖、细胞趋化以及血管收缩等生物效应的肽类生长因子。ＰＤＧＦ不仅参与调节重要的生理活动，还参与动脉粥样硬化、肾脏增生性疾病及肺纤维化等慢性炎症疾病的发生、发展，并与肿瘤血管生成、肿瘤转移密切相关 Platelet-derived growth factor (PDGF) is a peptide growth factor that is secreted by a variety of cells and has biological effects such as cell proliferation, chemotaxis and vasoconstriction. PDGF is not only involved in the regulation of important physiological activities, but also in the occurrence and development of chronic inflammatory diseases such as atherosclerosis, renal proliferative diseases and pulmonary fibrosis, and is closely related to tumor angiogenesis and tumor metastasis