Keratins
Mostrando 1-12 de 108 artigos, teses e dissertações.
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1. Keratinolytic abilities of
Micrococcus luteus from poultry wasteKeratinolytic microorganisms have become the subject of scientific interest due to their ability to biosynthesize specific keratinases and their prospective application in keratinic waste management. Among several bacterial classes, actinobacteria remain one of the most important sources of keratin-degrading strains, however members of the
Microco Braz. J. Microbiol.. Publicado em: 21/07/2015
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2. Análise comparativa das características clinicopatológicas e imunoistoquímicas dos cistos gengival do adulto, periodontal lateral e odontogênico glandular / Comparative analysis of clinicopathologic and immunohistochemical features of gingival cyst of adult, lateral periodontal cyst and glandular odontogenic cyst
Cistos gengival do adulto (CGA), periodontal lateral (CPL) e odontogênico glandular (COG) são cistos odontogênicos raros que apresentam características microscópicas similares e comportamento clínico distinto. O objetivo deste trabalho foi comparar o perfil clínico-patológico e imunoistoquímico de 45 casos destes três tipos de cistos odontogênicos
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 11/11/2011
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3. Cytokeratins, involucrin, filaggrin, E-cadherin and p63 expression in molluscum contagiosum lesions / Expressão de citoqueratinas, filagrina, involucrina, E-caderina e p63 em lesões de molusco contagioso
Background: Molluscum contagiosum (MC) is a Molluscipox virus infection of the epidermal keratinocytes with hyperplasia and intracytoplasmic inclusions the molluscum bodies (MB). Few studies address cytokeratins (K) profile in MC, mainly focusing the terminal epidermal keratinization process. Methods: In order to verify K1, K10, K14, K16, involucrin, filaggr
Publicado em: 2009
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4. Comparative analysis of the expression of cytokeratins, involucrin, filaggrin and e-cadherin in plane warts and Epidermodysplasia Verruciformis plane wart-type lesions / Análise comparativa da expressão de citoqueratinas, involucrina, filagrina e e-caderina em verrugas planas e em lesões do tipo verruga plana na Epidermodisplasia Verruciforme
Epidermodisplasia verruciforme (EV) é uma genodermatose rara, com susceptibilidade para infecção pelo vírus do papiloma humano, considerada modelo de oncogênese viral. Comparou-se a expressão epidérmica das citoqueratinas (K) 1, 10, 14, 4, 16, involucrina, filagrina e e-caderina, em lesões de verrugas planas e nas verrugas planas da EV através de m�
Publicado em: 2008
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5. Adenocarcinoma colorretal: aspectos anatomopatológicos e imuno-histoquímicos do crescimento tumoral, do citoesqueleto e de marcadores de regulação do pH intracelular / Colorectal adenocarcinoma:anatomopathological and imunohistochemical aspects of tumor growth, cytoskeleton and of intracellular pH regulator markers
The aims of this study in colorectal carcinoma were: 1) Verify the distribution of the most important anatomopathological variables, and identifying their relationship with lymph node or liver metastasis. 2) Considering the associations obtained in the first aim, a group of variables was selected to verify the prediction of lymph node or liver metastasis. 3)
Publicado em: 2008
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6. Detection and characterization of epithelial cells in the peripheral blood of patients with breast cancer / Detecção e caracterização de células epiteliais no sangue periférico de pacientes com carcinoma localmente avançado de mama
The aim of this study was to detect and characterize carcinoma cells of patients with breast cancer with clinical stage III analyzing the presence or absence before chemotherapy by enrichment of peripheral blood with super paramagnetic microbeads, using direct Immunomagnetic labeling of intracellular 7/8 cytokeratin. For enrichment, magnetically labeled tumo
Publicado em: 2007
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7. The limited difference between keratin patterns of squamous cell carcinomas and adenocarcinomas is explicable by both cell lineage and state of differentiation of tumour cells.
AIM: To study the differentiation of epithelial tissues within their histological context, and to identify hypothetically, on the basis of keratin pattern, the putative tissue origin of a (metastatic) carcinoma. METHODS: Using well characterised monoclonal antibodies against individual keratins 7, 8, 18, and 19, which are predominantly found in columnar epit
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8. Differential immunological crossreactivity of HeLa keratin antibodies with human epidermal keratins.
HeLa cells contain four keratin-like proteins having molecular weights of 50,000 (IEF 31), 48,500 (IEF 36), 44,000 (IEF 44), and 43,500 (IEF 46), respectively. Mouse polyclonal antibodies prepared against two of these keratins (IEF 31 and 46) have been used in this study to identify human epidermal keratins with common antigenic determinants. Using a sensiti
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9. Cloning of cDNAs specifying vitamin A-responsive human keratins.
In human cultured epidermal and conjunctival keratinocytes, vitamin A promotes the synthesis of keratins 13 and 19 of the catalog of Moll et al. [Moll, R., Franke, W.W., Schiller, D.L., Geiger, B. & Krepler, R. (1982) Cell 31, 11-24] but does not alter the synthesis of keratins 5 and 6. To study this effect of the vitamin, cDNAs specifying each of these kera
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10. Beta-keratins of turtle shell are glycine-proline-tyrosine rich proteins similar to those of crocodilians and birds
This study presents, for the first time, sequences of five beta-keratin cDNAs from turtle epidermis obtained by means of 5′- and 3′-rapid amplification of cDNA ends (RACE) analyses. The deduced amino acid sequences correspond to distinct glycine-proline-serine-tyrosine rich proteins containing 122–174 amino acids. In situ hybridization shows that beta-
Blackwell Science Inc.
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11. Type I and type II keratins have evolved from lower eukaryotes to form the epidermal intermediate filaments in mammalian skin.
We have traced the evolutionary origins of keratin-like sequences to the genomes of lower eukaryotes. The proteins encoded by these genes have evolved to form the intermediate filaments that comprise the backbone of vertebrate skin cells. Two related but distinct types of keratins encoded by two separate multigene subfamilies are expressed in the epidermal k
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12. Structure and functions of keratin proteins in simple, stratified, keratinized and cornified epithelia
Historically, the term ‘keratin’ stood for all of the proteins extracted from skin modifications, such as horns, claws and hooves. Subsequently, it was realized that this keratin is actually a mixture of keratins, keratin filament-associated proteins and other proteins, such as enzymes. Keratins were then defined as certain filament-forming proteins with
Blackwell Science Inc.