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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Unveiling alterative splice diversity from human oligodendrocyte proteome data

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Autor(es):
Tavares, Raphael ; Wajnberg, Gabriel ; Scherer, Nicole de Miranda ; Pauletti, Bianca Alves ; Cassoli, Juliana S. ; Ferreira, Carlos Gil ; Paes Leme, Adriana Franco ; de Araujo-Souza, Patricia Savio ; Martins-de-Souza, Daniel ; Passetti, Fabio
Número total de Autores: 10
Tipo de documento: Artigo Científico
Fonte: JOURNAL OF PROTEOMICS; v. 151, n. SI, p. 293-301, JAN 16 2017.
Citações Web of Science: 1
Resumo

Oligodendrocytes produce and maintain the myelin sheath of axons in the central nervous system. Because misassembled myelin sheaths have been associated with brain disorders such as multiple sclerosis and schizophrenia, recent advances have been made towards the description of the oligodendrocyte proteome. The identification of splice variants represented in the proteome is as important as determining the level of oligodendrocyte-associated proteins. Here, we used an oligodendrocyte proteome dataset deposited in ProteomeXchange to search against a customized protein sequence file containing computationally predicted splice variants. Our approach resulted in the identification of 39 splice variants, including one variant from the GTPase KRAS gene and another from the human glutaminase gene family. We also detected the mRNA expression of five selected splice variants and demonstrated that a fraction of these have their canonical proteins participating in direct protein-protein interactions. In conclusion, we believe our findings contribute to the molecular characterization of oligodendrocytes and may encourage other research groups working with central nervous system disorders to investigate the biological significance of these splice variants. The splice variants identified in this study may encode proteins that could be targeted in novel treatment strategies and diagnostic methods. Significance: Several disorders of the central nervous system (CNS) are associated with misassembled myelin sheaths, which are produced and maintained by oligodendrocytes (OL). Recently, the OL proteome has been explored to identify key proteins and molecular functions associated with CNS disorders. We developed an innovative approach to select, with a higher level of confidence, a relevant list of splice variants from a proteome dataset and detected the mRNA expression of five selected variants: EEF1D, OAS, MFF, SDR39U1, and SUGT1. We also described splice variants extracted from OL proteome data. Among the splice variants identified, some are from genes previously linked to CNS and related disorders. Our findings may contribute to oligodendrocyte characterization and encourage other research groups to investigate the biological role of splice variants and to improve current treatments and diagnostic methods for CNS disorders. (C) 2016 Elsevier B.V. All rights reserved. (AU)

Processo FAPESP: 09/54067-3 - EMU: aquisição de um espectrômetro de massas acoplado a cromatografia líquida para permitir ampliar a capacidade de atendimento de usuários e disponibilizar novas tecnologias no Laboratório de Espectrometria de Massas do Centro de Biologia Molecular Estrutural (ABTLUS)
Beneficiário:Adriana Franco Paes Leme
Linha de fomento: Auxílio à Pesquisa - Programa Equipamentos Multiusuários
Processo FAPESP: 13/08711-3 - Desenvolvimento de um teste preditivo para medicação bem sucedida e compreensão das bases moleculares da esquizofrenia através da proteômica
Beneficiário:Daniel Martins-de-Souza
Linha de fomento: Auxílio à Pesquisa - Apoio a Jovens Pesquisadores
Processo FAPESP: 14/10068-4 - EMU concedido no processo 13/08711-3: espectrômetro de massas Waters SYNAPT G2-Si HDMs + nanoACQUITY UPLC
Beneficiário:Daniel Martins-de-Souza
Linha de fomento: Auxílio à Pesquisa - Programa Equipamentos Multiusuários
Processo FAPESP: 14/14881-1 - Compreensão da influência de componentes da via glicolítica na função dos oligodendrócitos: uma relação com os achados em esquizofrenia
Beneficiário:Juliana Silva Cassoli
Linha de fomento: Bolsas no Brasil - Pós-Doutorado
Processo FAPESP: 10/19278-0 - Estudo da regulação de ADAMs em câncer oral
Beneficiário:Adriana Franco Paes Leme
Linha de fomento: Auxílio à Pesquisa - Apoio a Jovens Pesquisadores