Alex Augusto Ferreira e Ferreira , Hallison Mota Santana , Valdison Pereira dos Reis , João Gabriel dos Santos Magalhães , Milena Daniela Souza Silva , Carolina Pereira da Silva , Mauro Valentino Paloschi , André Alves Silva , Marlei Novaes de Sousa , Andreimar Martins Soares , Stella Regina Zamuner , Juliana Pavan Zuliani
{"title":"LED photobiomodulation reduces myonecrosis and hemorrhage caused by PI metalloproteinase isolated from Bothrops jararacussu venom","authors":"Alex Augusto Ferreira e Ferreira , Hallison Mota Santana , Valdison Pereira dos Reis , João Gabriel dos Santos Magalhães , Milena Daniela Souza Silva , Carolina Pereira da Silva , Mauro Valentino Paloschi , André Alves Silva , Marlei Novaes de Sousa , Andreimar Martins Soares , Stella Regina Zamuner , Juliana Pavan Zuliani","doi":"10.1016/j.jphotobiol.2025.113163","DOIUrl":null,"url":null,"abstract":"<div><div><em>Bothrops jararacussu</em> is one of the species most frequently involved in snakebite incidents. The metalloproteinase, which constitutes 26.2 % of the venom composition of this species, is a key factor responsible for severe tissue damage, including hemorrhage and myonecrosis. While antivenom treatment effectively addresses systemic effects, its efficacy in mitigating local damage remains limited. In this context, the present study aimed to investigate the effects of photobiomodulation using a 945 nm LED following experimental envenomation with a P<img>I class metalloproteinase, BjussuMP-II, isolated from <em>B. jararacussu</em> venom. Experimental envenoming was induced in male Swiss mice (18–22 g) after an injection of BjussuMP-II (50 μg) or PBS (50 μL) into the gastrocnemius muscles or dorsal skin. After 30 min, treatments with antivenom, LED, or a combination of both were administered. Three hours later, blood and muscle samples were collected for myotoxicity and histological analyses, and the dorsal skin was excised for hemorrhagic halo analysis. Results demonstrate that antivenom treatment alone is insufficient to mitigate the effects caused by BjussuMP-II, highlighting its ineffectiveness against the local damage induced by snakebite envenomation. In contrast, LED photobiomodulation, both as a standalone treatment and in combination with antivenom, effectively reduced myotoxicity, tissue damage, and hemorrhage induced by BjussuMP-II, both in the muscle and dorsal skin. In conclusion, LED treatment significantly reduces myotoxicity, tissue damage, and hemorrhage when applied independently. The combined application of antivenom and LED was also equally effective in mitigating these effects, demonstrating an advantage in the association of these two resources, as antivenom is essential for the reversal of systemic damage.</div></div>","PeriodicalId":16772,"journal":{"name":"Journal of photochemistry and photobiology. B, Biology","volume":"267 ","pages":"Article 113163"},"PeriodicalIF":3.9000,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of photochemistry and photobiology. B, Biology","FirstCategoryId":"99","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1011134425000661","RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"BIOCHEMISTRY & MOLECULAR BIOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Bothrops jararacussu is one of the species most frequently involved in snakebite incidents. The metalloproteinase, which constitutes 26.2 % of the venom composition of this species, is a key factor responsible for severe tissue damage, including hemorrhage and myonecrosis. While antivenom treatment effectively addresses systemic effects, its efficacy in mitigating local damage remains limited. In this context, the present study aimed to investigate the effects of photobiomodulation using a 945 nm LED following experimental envenomation with a PI class metalloproteinase, BjussuMP-II, isolated from B. jararacussu venom. Experimental envenoming was induced in male Swiss mice (18–22 g) after an injection of BjussuMP-II (50 μg) or PBS (50 μL) into the gastrocnemius muscles or dorsal skin. After 30 min, treatments with antivenom, LED, or a combination of both were administered. Three hours later, blood and muscle samples were collected for myotoxicity and histological analyses, and the dorsal skin was excised for hemorrhagic halo analysis. Results demonstrate that antivenom treatment alone is insufficient to mitigate the effects caused by BjussuMP-II, highlighting its ineffectiveness against the local damage induced by snakebite envenomation. In contrast, LED photobiomodulation, both as a standalone treatment and in combination with antivenom, effectively reduced myotoxicity, tissue damage, and hemorrhage induced by BjussuMP-II, both in the muscle and dorsal skin. In conclusion, LED treatment significantly reduces myotoxicity, tissue damage, and hemorrhage when applied independently. The combined application of antivenom and LED was also equally effective in mitigating these effects, demonstrating an advantage in the association of these two resources, as antivenom is essential for the reversal of systemic damage.
期刊介绍:
The Journal of Photochemistry and Photobiology B: Biology provides a forum for the publication of papers relating to the various aspects of photobiology, as well as a means for communication in this multidisciplinary field.
The scope includes:
- Bioluminescence
- Chronobiology
- DNA repair
- Environmental photobiology
- Nanotechnology in photobiology
- Photocarcinogenesis
- Photochemistry of biomolecules
- Photodynamic therapy
- Photomedicine
- Photomorphogenesis
- Photomovement
- Photoreception
- Photosensitization
- Photosynthesis
- Phototechnology
- Spectroscopy of biological systems
- UV and visible radiation effects and vision.