LCB 03-0110, a Novel Pan-Discoidin Domain Receptor/c-Src Family Tyrosine Kinase Inhibitor, Suppresses Scar Formation by Inhibiting Fibroblast and Macrophage Activation
作者:Xiaoyan Sun、Trong Nhat Phan、Seung Hee Jung、Sun Young Kim、Jong Un Cho、Hyangsook Lee、Sung Ho Woo、Tae Kyo Park、Beom-Seok Yang
DOI:10.1124/jpet.111.187328
日期:2012.3
Wound healing generally induces an inflammatory response associated with tissue fibrosis in which activated macrophage and myofibroblast cells are primarily involved. Although this is known to be the underlying mechanism for scarring and various fibrotic pathologies, no effective intervention is currently available. We identified (3-(2-(3-(morpholinomethyl)phenyl)thieno[3,2-b]pyridin-7-ylamino)phenol (LCB 03-0110), a thienopyridine derivative, as a potent inhibitor of discoidin domain receptor family tyrosine kinases and discovered that this compound strongly inhibits several tyrosine kinases, including the c-Src family, spleen tyrosine kinase, Bruton's tyrosine kinase, and vascular endothelial growth factor receptor 2, which are important for immune cell signaling and inflammatory reactions. LCB 03-0110 suppressed the proliferation and migration of primary dermal fibroblasts induced by transforming growth factor β1 and type I collagen, and this result correlated with the inhibition ability of the compound against enhanced expression of α-smooth muscle actin and activation of Akt1 and focal adhesion kinase. In J774A.1 macrophage cells activated by lipopolysaccharide LCB 03-0110 inhibited cell migration and nitric oxide, inducible nitric-oxide synthase, cyclooxygenase 2, and tumor necrosis factor-α synthesis. LCB 03-0110 applied topically to full excisional wounds on rabbit ears suppressed the accumulation of myofibroblast and macrophage cells in the healing wound and reduced hypertrophic scar formation after wound closing, without delaying the wound closing process. Taken together, the pharmacological activities of LCB 03-0110 suggest that it could be an effective agent for suppressing fibroinflammation by simultaneously targeting activated fibroblasts and macrophages.
伤口愈合通常会引起炎症反应,并伴有组织纤维化,其中活化的巨噬细胞和肌成纤维细胞是主要参与者。虽然这是疤痕和各种纤维化病理的基础机制,但目前尚无有效的干预措施。我们发现了噻吩并吡啶衍生物(3-(2-(3-(吗啉甲基)苯基)噻吩[3,2-b]吡啶-7-基氨基)苯酚(LCB 03-0110)是盘状蛋白结构域受体家族酪氨酸激酶的强效抑制剂,并发现该化合物可强烈抑制多种酪氨酸激酶,包括c-Src家族、脾酪氨酸激酶、布鲁顿酪氨酸激酶和血管内皮生长因子受体2,这些激酶对于免疫细胞信号传导和炎症反应至关重要。LCB 03-0110抑制