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Rech VC, Mezzomo NJ, Athaydes GA, Feksa LR, Figueiredo VC, Kessler A, Franceschi IDDE, Wannmacher CMD. Thiol/disulfide status regulates the activity of thiol-containing kinases related to energy homeostasis in rat kidney. AN ACAD BRAS CIENC 2017; 90:99-108. [PMID: 29236866 DOI: 10.1590/0001-3765201720160348] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Accepted: 08/08/2016] [Indexed: 11/21/2022] Open
Abstract
Considering that thiol-containing enzymes like kinases are critical for several metabolic pathways and energy homeostasis, we investigated the effects of cystine dimethyl ester and/or cysteamine administration on kinases crucial for energy metabolism in the kidney of Wistar rats. Animals were injected twice a day with 1.6 µmol/g body weight cystine dimethyl ester and/or 0.26 µmol/g body weight cysteamine from the 16th to the 20th postpartum day and euthanized after 12 hours. Pyruvate kinase, adenylate kinase, creatine kinase activities and thiol/disulfide ratio were determined. Cystine dimethyl ester administration reduced thiol/disulfide ratio and inhibited the kinases activities. Cysteamine administration increased the thiol/disulfide ratio and co-administration with cystine dimethyl ester prevented the inhibition of the enzymes. Regression between the thiol/disulfide ratio, and the kinases activities were significant. These results suggest that redox status may regulate energy metabolism in the rat kidney. If thiol-containing enzymes inhibition and oxidative stress occur in patients with cystinosis, it is possible that lysosomal cystine depletion may not be the only beneficial effect of cysteamine administration, but also its antioxidant and thiol-protector effect.
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Affiliation(s)
- Virginia C Rech
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2600, Anexo, Santa Cecília, 90035-003 Porto Alegre, RS, Brazil.,Programa de Pós-Graduação em Nanociências, Laboratório de Nanotecnologia, Centro Universitário Franciscano, Rua dos Andradas, 1614, 97010-032 Santa Maria, RS, Brazil
| | - Nathana J Mezzomo
- Programa de Pós-Graduação em Nanociências, Laboratório de Nanotecnologia, Centro Universitário Franciscano, Rua dos Andradas, 1614, 97010-032 Santa Maria, RS, Brazil
| | - Genaro A Athaydes
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2600, Anexo, Santa Cecília, 90035-003 Porto Alegre, RS, Brazil
| | - Luciane R Feksa
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2600, Anexo, Santa Cecília, 90035-003 Porto Alegre, RS, Brazil.,Instituto de Ciências da Saúde, Universidade Feevale, ERS-239, 2755, 93525-075 Novo Hamburgo, RS, Brazil
| | - Vandré C Figueiredo
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2600, Anexo, Santa Cecília, 90035-003 Porto Alegre, RS, Brazil
| | - Adriana Kessler
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2600, Anexo, Santa Cecília, 90035-003 Porto Alegre, RS, Brazil.,Faculdade de Enfermagem, Nutrição e Fisioterapia, Pontifícia Universidade Católica do Rio Grande do Sul, Av. Ipiranga, 6681, Prédio 12, Partenon, 90619-900 Porto Alegre, RS, Brazil
| | - Itiane D DE Franceschi
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2600, Anexo, Santa Cecília, 90035-003 Porto Alegre, RS, Brazil
| | - Clovis M D Wannmacher
- Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2600, Anexo, Santa Cecília, 90035-003 Porto Alegre, RS, Brazil
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