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Peri/Epicellular Thiol Oxidoreductases as Mediators of Extracellular Redox Signaling

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Autor(es):
Tanaka, Leonardo Y. [1] ; Oliveira, Percillia V. S. [1] ; Laurindo, Francisco R. M. [1]
Número total de Autores: 3
Afiliação do(s) autor(es):
[1] Univ Sao Paulo, LIM 64 Translat Cardiovasc Biol, Inst Coracao InCor, Hosp Clin HCFMUSP, Fac Med, Vasc Biol Lab, Ave Eneas C Aguiar 44 Annex 2, 9th Floor, BR-05403904 Sao Paulo - Brazil
Número total de Afiliações: 1
Tipo de documento: Artigo Científico
Fonte: Antioxidants & Redox Signaling; v. 33, n. 4 FEB 2020.
Citações Web of Science: 0
Resumo

Recent Advances: pecTOR redox-modulates several targets including integrins, ECM proteins, surface molecules, and plasma components, although clear-cut documentation of direct effects is lacking in many cases. TOR catalytic pathways, displaying common patterns, culminate in substrate thiol reduction, oxidation, or isomerization. Peroxiredoxins act as redox/peroxide sensors, contrary to PDIs, which are likely substrate-targeted redox modulators. Emerging evidence suggests important pecTOR roles in patho(physio)logical processes, including blood coagulation, vascular remodeling, mechanosensing, endothelial function, immune responses, and inflammation. Critical Issues: Effects of pecPDIs supporting thrombosis/platelet activation have been well documented and reached the clinical arena. Roles of pecPDIA1 in vascular remodeling/mechanosensing are also emerging. Extracellular thioredoxin and pecPDIs redox-regulate immunoinflammation. Routes of TOR externalization remain elusive and appear to involve Golgi-independent routes. pecTORs are particularly accessible drug targets. Future Directions: Further understanding mechanisms of thiol redox reactions and developing assays for assessing pecTOR redox activities remain important research avenues. Also, addressing pecTORs as disease markers and achieving more efficient/specific drugs for pecTOR modulation are major perspectives for diagnostic/therapeutic improvements. (AU)

Processo FAPESP: 18/07230-5 - Mecanismos subcelulares envolvidos na convergência entre homeostase mecânica e redox na regulação vascular
Beneficiário:Leonardo Yuji Tanaka
Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores
Processo FAPESP: 13/07937-8 - Redoxoma
Beneficiário:Ohara Augusto
Modalidade de apoio: Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs
Processo FAPESP: 19/03617-5 - Proteína Dissulfeto Isomerase-A1 (PDIA1) citosólica: um novo mecanismo tiol-redox de sinalização celular
Beneficiário:Percíllia Victória Santos de Oliveira
Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado