Journal of Zhejiang University SCIENCE B 1998 Vol.-1 No.-1 P.

http://doi.org/10.1631/jzus.B2600138


Photobiomodulation with red light promotes drug-free vascular repair after balloon angioplasty


Author(s):  Shujie JIN1, Xingwang WANG1, Yijing YIN1, Chengqiang YE1, Peihong JI2, Ya PENG3, Kefeng REN1,4, Youxiang WANG1, Jian JI1,5

Affiliation(s):  1. 1MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Shaoxing Institute, Zhejiang University, Hangzhou 310058, China 2Hangzhou Matrix Medical Technology Co. Ltd, Hangzhou 311100, China 3Neurosurgery Department of the Third Affiliated Hospital of Soochow University, Changzhou 213003, China 4Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Department of Cardiology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou 310016, China 5State Key Laboratory of Transvascular Implantation Devices, the Second Affiliated Hospital Zhejiang University School of Medicine, Hangzhou 310009, China

Corresponding email(s):   Kefeng REN, renkf@zju.edu.cn Youxiang WANG, yx_wang@zju.edu.cn

Key Words:  Photobiomodulation, Endothelial cells, Vascular stenosis, Balloon injury, Intima repair


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Shujie JIN1, Xingwang WANG1, Yijing YIN1, Chengqiang YE1, Peihong JI2, Ya PENG3, Kefeng REN1,4, Youxiang WANG1, Jian JI1,5. Photobiomodulation with red light promotes drug-free vascular repair after balloon angioplasty[J]. Journal of Zhejiang University Science B, 1998, -1(-1): .

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Abstract: Balloon angioplasty, though effective for vascular stenosis, inevitably induces vascular injury during dilation. The absence of clinical interventions to promote endothelial regeneration post-injury predisposes patients to late-phase complications including thrombosis, inflammation, and restenosis. photobiomodulation (PBM) is a biological intervention that can have a regulatory effect. Red light as its primary wavelength shows significant therapeutic promise in cardiovascular and neuropsychiatric disorders, which is especially important in cases where medication cannot be used. In this study, we evaluated the effects of 640-nm PBM at various doses on endothelial cells (ECs) and vascular smooth muscle cells (SMCs). In vivo, balloon-injured rat abdominal aortas underwent transvascular red light irradiation (20 mW/cm2, 3 min) via optical fibers. PBM promoted EC migration, proliferation, nitric oxide release, and CD31 expression while concurrently suppressing SMC proliferation and contractility. Rat model outcomes also confirmed PBM attenuated the vascular inflammation reaction and reduced neointimal hyperplasia. These findings show that PBM could be a viable strategy to enhance intima repair and mitigate balloon-associated vascular injury and restenosis.

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On-line Access: 2026-07-13

Received: 2026-03-01

Revision Accepted: 2026-06-21

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