Citation:Li Z,Zhou KW,Chen F,Shang F,Wu MX.Celastrol inhibits laser-induced choroidal neovascularization by decreasing VEGF induced proliferation and migration.Int J Ophthalmol 2022;15(8):1221-1230,doi:10.18240/ijo.2022.08.01
Celastrol inhibits laser-induced choroidal neovascularization by decreasing VEGF induced proliferation and migration
Received:January 13, 2022  Revised:April 13, 2022
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DOI:10.18240/ijo.2022.08.01
Key Words:celastrol  choroidal neovascularization  proliferation  vascular endothelial growth factor  human choroidal endothelial cells
Fund Project:Supported by National Natural Science Foundation of China (No.81570826).
              
AuthorInstitution
Zhen Li State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou , Guangdong Province, China
Ke-Wen Zhou State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou , Guangdong Province, China; Department of Physiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou , Guangdong Province, China
Fang Chen State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou , Guangdong Province, China
Fu Shang State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou , Guangdong Province, China
Ming-Xing Wu State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou , Guangdong Province, China
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Abstract:
      AIM: To evaluate celastrol’s effect on choroidal neovascularization (CNV).

    METHODS: In this study, neovascular formation in vitro (tube formation and aortic ring culture) and in vivo (laser induced neovascular in mice) was treated with celastrol to evaluate this natural compound’s impact on CNV. Western blot was applied to explore the possible mechanism for it. For in vitro assay, triplicate for each group was repeated at least three times. For in vivo assay, each group contains 5 mice.

    RESULTS: Celastrol supressed tube formation and aortic ring sprout neovascularization. In vitro assay exhibited that celastrol inhibiting vascular endothelial growth factor (VEGF)-induced proliferation and migration of human umbilical vein endothelial cells and human choroidal endothelial cells, and by blocking VEGF signaling. Furthermore, intraperitoneal administration of celastrol significantly reduced the area of laser-induced CNV in an in vivo mouse model. By day 14, the area of CNV had decreased by 49.15% and 80.26% in the 0.1 mg/kg celastrol-treated group (n=5) and in the 0.5 mg/kg celastrol treated group (n=5), respectively, compared to the vehicle-treated group (n=5).

    CONCLUSION: Celastrol inhibits CNV by inhibiting VEGF-induced proliferation and migration of vascular endothelial cells, indicating that celastrol is a potent, natural therapeutic compound for the prevention of CNV.

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