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Nascimento TL, Conte TC, Rissato TS, Luna MS, Soares AG, Moriscot AS, Yamanouye N, Miyabara EH. Radicicol enhances the regeneration of skeletal muscle injured by crotoxin via decrease of NF-kB activation. Toxicon 2019; 167:6-9. [PMID: 31173791 DOI: 10.1016/j.toxicon.2019.06.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 05/29/2019] [Accepted: 06/03/2019] [Indexed: 11/28/2022]
Abstract
This study evaluated cellular and molecular effects of radicicol, a heat shock protein (HSP) inducer, on the regeneration of skeletal muscle injured by crotoxin, the main toxin isolated from Crotalus durissus terrificus venom. Regenerating muscles treated with radicicol had decreased NF-kB activation. Differentiating myoblasts treated with radicicol showed reduced number of NF-kB positive nuclei and increased fusion index. The results suggest that radicicol enhances regeneration of muscle by attenuating NF-kB activation and increasing myogenic differentiation.
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Affiliation(s)
- T L Nascimento
- Department of Anatomy, Biomedical Sciences Institute, University of São Paulo. Av. Lineu Prestes 2415, 05508-000, São Paulo, SP, Brazil
| | - T C Conte
- Department of Anatomy, Biomedical Sciences Institute, University of São Paulo. Av. Lineu Prestes 2415, 05508-000, São Paulo, SP, Brazil
| | - T S Rissato
- Department of Anatomy, Biomedical Sciences Institute, University of São Paulo. Av. Lineu Prestes 2415, 05508-000, São Paulo, SP, Brazil
| | - M S Luna
- Pharmacology Laboratory, Butantan Institute, Av. Vital Brazil 1500, 05503-900, São Paulo, SP, Brazil
| | - A G Soares
- Department of Pharmacology, Biomedical Sciences Institute, University of São Paulo. Av Lineu Prestes 1524, 05508-900, São Paulo, SP, Brazil
| | - A S Moriscot
- Department of Anatomy, Biomedical Sciences Institute, University of São Paulo. Av. Lineu Prestes 2415, 05508-000, São Paulo, SP, Brazil
| | - N Yamanouye
- Pharmacology Laboratory, Butantan Institute, Av. Vital Brazil 1500, 05503-900, São Paulo, SP, Brazil
| | - E H Miyabara
- Department of Anatomy, Biomedical Sciences Institute, University of São Paulo. Av. Lineu Prestes 2415, 05508-000, São Paulo, SP, Brazil.
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