Platelet microparticles load a repertory of miRNAs programmed to drive osteogenic phenotype

Autor(es)

Ferreira, Marcel Rodrigues ^[1] ; Zambuzzi, Willian Fernando ^[1]

Afiliação do(s) autor(es)

^[1] Savo Paulo State Univ UNESP, Inst Biosci, Dept Chem & Biochem, Campus Botucatu, BR-18618970 Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Journal of Biomedical Materials Research Part A; v. 109, n. 8, p. 1502-1511, AUG 2021.
• Citações Web of Science: 1

Resumo

Autologous platelet-rich plasma accelerates bone healing by releasing biomolecules during their degranulation process, which are transported by vesicle-like structures called platelet microparticles (PMPs). However, the underlying mechanisms regulating the osteogenic differentiation by PMP-released miRs remain poorly understood and this prompted us to better address this issue. Thus, miRNAseq expression profiles (E-GEOD-76789) were downloaded from ArrayExpress database. GEO2R was performed to evaluate the differential expression, and mirnatap R package was used to find targets for differentially expressed miRNAs. An extend protein-protein (ePPI) network for osteogenic marker proteins was generated using String, and DAVID tools were used to perform gene ontology and KEGG pathway analysis from ePPI and miRNAs targets. Our data show that ePPI network was composed by 232 nodes and 2,175 edges, with a clustering coefficient of 0.546. MCODE was able to identify seven clusters contained in the ePPI network, and the two that presented a score above 10 were used in further analysis. Conversely, 15,944 different targets were found as down-expressed while 5,715 different targets were up-expressed. Among the downregulated 75 miRNAs, 70 have predicted targets present in the ePPI network, while the 21 upregulated miRNAs have 19 predicted targets in the ePPI network. Our study provides a registry of miRNAs that play a central role in regulating osteogenic phenotype, which might have potential therapeutic applications in bone regeneration and bone tissue engineering. (AU)

• Processo FAPESP: 14/22689-3 - Sinalização parácrina mediada por microvesículas e proteínas entre células ósseas e endoteliais durante o desenvolvimento e regeneração do tecido ósseo
• Beneficiário: Willian Fernando Zambuzzi
• Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores
• Processo FAPESP: 19/26854-2 - Efeito de um modelo de hipóxia no acoplamento angiogênese-osteogênese: um olhar às microvesículas e potenciais aplicações biotecnológicas
• Beneficiário: Willian Fernando Zambuzzi
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 18/05731-7 - PRP liofilizado associado à nano-hidroxiapatita na performance celular e regeneração óssea
• Beneficiário: Marcel Rodrigues Ferreira
• Modalidade de apoio: Bolsas no Brasil - Doutorado