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Micro-RNAs differentially expressed in comparative analysis of sperm samples wi...
Silva, Ricardo Tomaz da; Gomes, Matheus de Souza; Fujimura, Patrícia Tiemi; Ueira-Vieira, Carlos; Amaral, Laurence Rodrigues do; Beletti, Marcelo EmílioInfertility or subfertility in bovine males may be related to spermatic microRNAs (miRNAs), whose function seems to be associated with the regulation of gene expression, degradation or storage of messenger RNAs (mRNAs) for later translation into early embryonic development. Thus, the purpose of this study was to identify differentially expressed miRNAs in semen samples from bulls (Bos taurus) with low and high ...
Multi-parameter approach to evaluate the timing of memory status after 17DD-YF ...
Costa-Pereira, Christiane; Campi-Azevedo, Ana Carolina; Coelho-dos-Reis, Jordana Grazziela; Peruhype-Magalh?es, Vanessa; Ara?jo, M?rcio Sobreira SilvaPrograma Nacional de Imuniza??es (PNI), Secretaria de Vigil?ncia em Sa?de (SVS), PDTIS, CNPq (472782/2009-6 and 475076/2013-3), CAPES, FAPEMIG and PROEP/CPqRR/FIOCRUZ for financial support. ACCA and JGCdR received financial support from CNPq MCTI/CNPq/2014.; Funda??o Oswaldo Cruz. Centro de Pesquisas Ren? Rachou. Belo Horizonte, MG, Brazil.; Funda??o Oswaldo Cruz. Centro de Pesquisas Ren? Rachou. Belo Horizonte...
Accomplishing the genotype-specific serodiagnosis of single and dual Trypanosom...
Alessio, Glaucia Diniz; Araújo, Fernanda Fortes de; Sales Júnior, Policarpo Ademar; Gomes, Matheus de Souza; Amaral, Laurence Rodrigues doThe methods currently available for genotype-specific diagnosis of T. cruzi infection still present relevant limitations, especially to identify mixed infection. In the present investigation, we have evaluated the performance of Chagas-Flow ATE-IgG2a test for early and late differential diagnosis of single and dual genotype-specific T. cruzi infections. Serum samples from Swiss mice at early and late stages of ...
Transcriptional profile and structural conservation of SUMO-Specific proteases ...
Pereira, Roberta Verciano; Cabral, Fernanda Janku; Gomes, Matheus de Souza; Passos, Liana Konovaloff Jannotti; Borges, William de CastroSmall ubiquitin-related modifier (SUMO) is involved in numerous cellular processes including protein localization, transcription, and cell cycle control. SUMOylation is a dynamic process, catalyzed by three SUMO-specific enzymes and reversed by Sentrin/SUMO-specific proteases (SENPs). Here we report the characterization of these proteases in Schistosoma mansoni. Using in silico analysis, we identified two SENPs...
Epitope mapping of the HSP83.1 protein of Leishmania braziliensis discloses nov...
Souza, Daniel Menezes; Mendes, Tiago Antônio de Oliveira; Gomes, Matheus de Souza; Cunha, João Luís Reis; Nagem, Ronaldo Alves PintoGold standard serological diagnostic methods focus on antigens that elicit a strong humoral immune response that is specific to a certain pathogen. In this study, we used bioinformatics approaches to identify linear B-cell epitopes that are conserved among Leishmania species but are divergent from the host species Homo sapiens and Canis familiaris and from Trypanosoma cruzi, the parasite that causes Chagas dise...
Performance of TcI/TcVI/TcII Chagas-Flow ATE-IgG2a for universal and genotype-s...
Alessio, Glaucia Diniz; Araújo, Fernanda Fortes de; Côrtes, Denise Fonseca; Sales Júnior, Policarpo Ademar; Lima, Daniela CristinaDistinct Trypanosoma cruzi genotypes have been considered relevant for patient management and therapeutic response of Chagas disease. However, typing strategies for genotype- specific serodiagnosis of Chagas disease are still unavailable and requires standardization for practical application. In this study, an innovative TcI/TcVI/TcII Chagas Flow ATE-IgG2a technique was developed with applicability for universa...
Conservation and developmental expression of ubiquitin isopeptidases in Schisto...
Pereira, Roberta Verciano; Vieira, Helaine Graziele Santos; Oliveira, Victor Fernandes de; Gomes, Matheus de Souza; Passos, Liana Konovaloff JannottiSeveral genes related to the ubiquitin (Ub)-proteasome pathway, including those coding for proteasome subunits and conjugation enzymes, are differentially expressed during the Schistosoma mansoni life cycle. Although deubiq¬uitinating enzymes have been reported to be negative regulators of protein ubiquitination and shown to play an im¬portant role in Ub-dependent processes, little is known about their role in ...
NEDD8 conjugation in Schistosoma mansoni : genome analysis and expression profi...
Pereira, Roberta Verciano; Gomes, Matheus de Souza; Olmo, Roenick Proveti; Sousa, Daniel M.; Passos, Liana Konovaloff Jannotti; Babá, Élio HideoNEDD8 is an ubiquitin-like molecule that covalently binds to target proteins through an enzymatic cascade analogous to ubiquitylation. This modifier is known to bind to p53 and p73, as well as all Cullin family proteins, which are essential components of Skp1/Cul-1/F-box protein (SCF)-like Ub ligase complexes. Here, we focused on a genomic analysis of the genes involved in the NEDD8 conjugation pathway in Schis...
Preliminary analysis of miRNA pathway in Schistosoma mansoni.
Gomes, Matheus de Souza; Cabral, Fernanda Janku; Passos, Liana Konovaloff Jannotti; Carvalho, Omar; Rodrigues, Vanderlei; Babá, Élio HideoRNA silencing refers to a series of nuclear and cytoplasmatic processes involved in the post-transcriptional regulation of gene expression or post-transcriptional gene silencing (PTGS), either by sequence-specific mRNA degradation or by translational arrest. The best characterized small RNAs are microRNAs (miRNAs), which predominantly perform gene silencing through post-transcriptional mechanisms. In this work ...
Characterisation of major vault protein during the life cycle of the human para...
Reis, Eneida Virgínia; Pereira, Roberta Verciano; Gomes, Matheus de Souza; Passos, Liana Konovaloff Jannotti; Babá, Élio HideoVaults are ribonucleoproteins (13MDa) highly conserved among lower and higher eukaryotes. Their association produces a complex composed of three proteins named Major Vault Protein (MVP), vault (PolyADP-ribose) polymerase (VPARP) and Telomerase-associated protein (TEP1), plus a small untranslated RNA. The exact function of this complex is unknown, although the biological role of vaults has been associated with m...