Tryptanthrin inhibits tumor angiogenesis via Notch/Dll4 signaling pathway in zebrafish.

"Conflicts of Interest: All authors have completed the ICMJE uniform disclosure form (available at https://tcr.amegroups.com/article/view/10.21037/tcr-23-925/coif). ML reports the Startup Fund for Scientific Research, Fujian Medical University (No. 2020QH1345). HD reports the funding from the Natural Science Foundation of Fujian Province (No. 2021J011304). CZ reports the Startup Fund for Scientific Research, Fujian Medical University (No. 2020QH1346), and funding from the Fuzhou Health Science and Technology Project (No. 2022-S-wq1). The other authors have no conflicts of interest to declare."

"Funding: This work was supported by grants from the Startup Fund for Scientific Research, Fujian Medical University ( No. 2020QH1345 to M Lin and No. 2020QH1346 to C Zheng), the Fuzhou Health Science and Technology Project ( No. 2022-S-wq1 to C Zheng), and the Natural Science Foundation of Fujian Province ( No. 2021J011304 to H Dai)."