Xinkeshu Tablets Promote Angiogenesis in Zebrafish Embryos and Human Umbilical Vein Endothelial Cells Through Multiple Signaling Pathways.

ETHNOPHARMACOLOGICAL RELEVANCE:Angiogenesis is particularly important in ischemic cardiovascular diseases such as coronary heart disease (CHD). Xinkeshu tablets (XKS) are a commonly used Chinese patent medicine for CHD with a defined clinical effect. However, the proangiogenic effect of XKS remains unknown.AIM OF THE STUDY:We attempted to investigate the chemical composition and proangiogenic effect of XKS, as well as its underlying mechanisms.MATERIALS AND METHODS:The chemical composition of a XKS methanol extract was analyzed using a UPLC-Q-Orbitrap-MS system. The compound's proangiogenic effects were evaluated in zebrafish embryos and human umbilical vein endothelial cells (HUVECs). Furthermore, the underlying mechanisms were investigated using transcriptome assays and real-time quantitative PCR validation.RESULTS:We identified 116 chemical constituents of XKS. XKS significantly stimulated subintestinal vessel plexus (SIVs) growth and rescued tyrosine kinase inhibitor (PTK787)-induced intersegmental vessels (ISVs) injury in zebrafish in a concentration-dependent manner. XKS significantly rescued the proliferation, migration capacity and tube formation of Recombinant VEGFR tyrosine kinase inhibitor II (VRI)-injured HUVECs. XKS promoted angiogenesis through multiple signaling pathways, including metabolic pathways, the PPAR signaling pathway, the AGE-RAGE signaling pathway, the NOD-like receptor signaling pathway, the VEGF signaling pathway, and the PI3K/Akt signaling pathway.CONCLUSION:Herein, we identified 116 chemical constituents of XKS for the first time and demonstrated that XKS may regulate angiogenesis through multiple signaling pathways to treat CHD.