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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Cleavage of proteoglycans, plasma proteins and the platelet-derived growth factor receptor in the hemorrhagic process induced by snake venom metalloproteinases

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Asega, Amanda F. . [1] ; Menezes, Milene C. [1] ; Trevisan-Silva, Dilza [1] ; Cajado-Carvalho, Daniela [1] ; Bertholim, Luciana [1] ; Oliveira, Ana K. [1, 2] ; Zelanis, Andre [3] ; Serrano, Solange M. T. [1]
Total Authors: 8
[1] Inst Butantan, Ctr Toxins Immune Response & Cell Signaling CETIC, Lab Toxinol Aplicada, Av Vital Brasil 1500, BR-05503900 Sao Paulo, SP - Brazil
[2] Ctr Nacl Pesquisa Energia & Mat CNPEM, Lab Nacl Biociencias LNBio, Campinas, SP - Brazil
[3] Univ Fed Sao Paulo, Dept Ciencia & Tecnol, Sao Jose Dos Campos, SP - Brazil
Total Affiliations: 3
Document type: Journal article
Source: SCIENTIFIC REPORTS; v. 10, n. 1 JUL 31 2020.
Web of Science Citations: 0

Envenoming by viperid snakes results in a complex pattern of tissue damage, including hemorrhage, which in severe cases may lead to permanent sequelae. Snake venom metalloproteinases (SVMPs) are main players in this pathogenesis, acting synergistically upon different mammalian proteomes. Hemorrhagic Factor 3 (HF3), a P-III class SVMP from Bothrops jararaca, induces severe local hemorrhage at pmol doses in a murine model. Our hypothesis is that in a complex scenario of tissue damage, HF3 triggers proteolytic cascades by acting on a partially known substrate repertoire. Here, we focused on the hypothesis that different proteoglycans, plasma proteins, and the platelet derived growth factor receptor (PDGFR) could be involved in the HF3-induced hemorrhagic process. In surface plasmon resonance assays, various proteoglycans were demonstrated to interact with HF3, and their incubation with HF3 showed degradation or limited proteolysis. Likewise, Western blot analysis showed in vivo degradation of biglycan, decorin, glypican, lumican and syndecan in the HF3-induced hemorrhagic process. Moreover, antithrombin III, complement components C3 and C4, factor II and plasminogen were cleaved in vitro by HF3. Notably, HF3 cleaved PDGFR (alpha and beta) and PDGF in vitro, while both receptor forms were detected as cleaved in vivo in the hemorrhagic process induced by HF3. These findings outline the multifactorial character of SVMP-induced tissue damage, including the transient activation of tissue proteinases, and underscore for the first time that endothelial glycocalyx proteoglycans and PDGFR are targets of SVMPs in the disruption of microvasculature integrity and generation of hemorrhage. (AU)

FAPESP's process: 11/08514-8 - Study of the degradome of HF3, a PIII-class snake venom metalloproteinase from Bothrops jararaca venom, on cultured fibroblasts
Grantee:André Zelanis Palitot Pereira
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 17/19252-0 - Proteomic analysis of the effects of PA-BJ, a serine proteinase of Bothrops jararaca venom, upon peripheral blood endothelial cell culture
Grantee:Daniela Cajado de Oliveira Souza Carvalho
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 17/00715-0 - Proteolytic enzymes from snake venoms trigger cascades of yet unknown molecular events
Grantee:Dilza Trevisan Silva
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 10/17328-0 - Comparative proteomic characterization of platelet aggregation induced by thrombin and PA-BJ, a serine proteinase from the venom of Bothrops jararaca.
Grantee:Ana Karina de Oliveira
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 10/00206-0 - Molecular characterization of the hemorrhage induced by the metalloproteinase HF3: analysis of its interaction with extracellular matrix components and of the hemorrhagic tissue regeneration.
Grantee:Amanda Francine Asega
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 13/07467-1 - CeTICS - Center of Toxins, Immune-Response and Cell Signaling
Grantee:Hugo Aguirre Armelin
Support type: Research Grants - Research, Innovation and Dissemination Centers - RIDC