Fábio Faria da Mota

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Different species of Paenibacillus are considered to be plant growth-promoting rhizobacteria (PGPR) due to their ability to repress soil borne pathogens, fix atmospheric nitrogen, induce plant resistance to diseases and/or produce plant growth-regulating substances such as auxins. Although it is known that indole-3-acetic acid (IAA) is the primary naturally(More)
Cathepsin E is an aspartic proteinase which has been implicated in antigen processing in the class II major histocompatibility complex pathway. In this study we show that cathepsin E, measured at both the protein and message level, is up-regulated late in human B cell activation. The implications of this observation in terms of cathepsin E function are(More)
The activation of HPV-specific T cells within the cervical microenvironment is likely to play an important part in the natural history of cervical intraepithelial neoplasia (CIN). The extent and the type of T cell activation will depend critically on the expression of MHC, costimulatory cell surface molecules and cytokines by keratinocytes and Langerhans(More)
The contamination of ecosystems with heavy metals is an important issue in current world and remediation technologies should be in according to environmental sustainability concept. Bioemulsifier are promising agents to be used in metal removal and could be effective to many applications in environmental industries. The aims of this work was screening the(More)
Paenibacillus graminis strains were described recently as cyclodextrin (CD) producers. Cyclodextrins are produced by cyclodextrin glucanotransferase (CGTase) which has not been characterized in P. graminis. Similar amounts of α- and β-CDs were produced by P. graminis (MC22.13) and P. macerans (LMD24.10T). Primers were designed to sequence the gene encoding(More)
Keratinocytes in normal ectocervix did not express major histocompatibility complex class II molecules. In low-grade intraepithelial lesions expression was confined to HLA-DR, while in high-grade disease there was expression of HLA-DR and occasional expression of HLA-DQ. HLA-DR was expressed constitutively on the majority of Langerhans cells. In contrast,(More)
PURPOSE Immune responses within the cervical microenvironment are likely to play an important role in the natural history of premalignant lesions but the pattern of this response and how it is regulated has not been documented in detail. METHODS Explants of premalignant cervical epithelium were cultured in vitro for 24 hours. The culture supernatants were(More)
We have investigated the expression of the aspartic proteinase cathepsin E and HLA-DR and the presence of HPV16 in normal squamous epithelium (n = 8) and low-grade (n = 21) and high-grade (n = 14) intraepithelial squamous lesions of the uterine cervix. Immunohistochemistry of cervical biopsies revealed that up-regulation of cathepsin E expression was(More)
Nanocompósitos de polietileno-MMT foram preparados através da metodologia de polimerização in situ utilizando TpTiCl 3 (1) intercalado na galeria da Cloisite 30B (C30B) e na presença de metilaluminoxano (MAO) como ativador. Através da análise de difração de raios-X (DRX) foi observado que o espaçamento basal da argila ativada muda de 1,85 nm (2θ = 4,8)(More)
1. One of the main obstacles to the reliable detection of human papillomavirus in cervical intraepithelial neoplasia is that a minute quantity of infected tissue is often all that is available. 2. In this work, proteinase K-phenol-chloroform-treated sections of frozen cervical biopsies were split in two. Half of the material was precipitated by ethanol in(More)