Base de dados : HANSEN
Pesquisa : PERFILACAO DA EXPRESSAO GENICA [Descritor de assunto]
Referências encontradas : 3 [refinar]
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Id:22737
Autor:Williams, Diana L; Oby-Robinson, Sandra; Pittman, TAna L; Scollard, David M
Título:Purification of Mycobacterium leprae RNA for gene expression analysis from leprosy biopsy specimens
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Fonte:s.l; s.n; 2003. 3 p. ilus, tab.
Resumo:Gene expression analysis in Mycobacterium leprae, an obligate intracellular pathogen and the etiologic agent of leprosy, has been hampered by the lack of an efficient method to purify RNA from leprosy lesions. Therefore to date, transcripts for only a few genes have been identified. We report the use of a single-tube homogenization/RNA extraction method that produces enough RNA to study the expression of 30 genes from a single skin biopsy specimen of a multibacillary leprosy patient and demonstrate that RNA can be purified after fixation of biopsies in 70% ethanol for up to a year. This represents a major advancement in the ability to study M. leprae gene expression directly from biopsy material and should help to define genes that are associated with intracellular survival of this human pathogen. (AU).
Descritores:Biópsia/*MT
Perfilação da Expressão Gênica/*MT
Triagem Genética/MT
Hanseníase/*MI/*PA
Mycobacterium leprae/GE/*IP/*ME
RNA Bacteriano/*GE/*IP
Análise de Sequência de RNA/MT
Pele/MI/PA
Limites:Humano
Localização:BR191.1; 01850/s


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Id:22674
Autor:Bleharski, Joshua R; Li, Huiying; Meinken, Cristoph; Graeber, Thomas G; Ochoa, Maria-Teresa; Yamamura, Masahiro; Burdick, Anne; Sarno, Euzenir N; Wagner, Manfred; Röllinghoff, Martin; Rea, Thomas H; Colonna, Marco; Stenger, Steffen; Bloom, Barry R; Eisenberg, David; Modlin, Robert L
Título:Use of genetic profiling in leprosy to discriminate clinical forms of the disease
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Fonte:s.l; s.n; 2003. 4 p. .
Resumo:Leprosy presents as a clinical and immunological spectrum of disease. With the use of gene expression profiling, we observed that a distinction in gene expression correlates with and accurately classifies the clinical form of the disease. Genes belonging to the leukocyte immunoglobulin-like receptor (LIR) family were significantly up-regulated in lesions of lepromatous patients suffering from the disseminated form of the infection. In functional studies, LIR-7 suppressed innate host defense mechanisms by shifting monocyte production from interleukin-12 toward interleukin-10 and by blocking antimicrobial activity triggered by Toll-like receptors. Gene expression profiles may be useful in defining clinical forms of disease and providing insights into the regulation of immune responses to pathogens. (AU).
Descritores:Algoritmos
Análise por Conglomerados
Contagem de Colônia Microbiana
Citocinas/GE/ME
Perfilação da Expressão Gênica/*
Regulação da Expressão Gênica/*
Genes de Imunoglobulinas
Imunidade Celular
Imunidade Natural
Hanseníase Virchowiana/*CL/*GE/IM/PP
Hanseníase Tuberculóide/*CL/*GE/IM/PP
Macrófagos Alveolares/MI
Glicoproteínas de Membrana/IM
Mycobacterium tuberculosis/GD/IM
Análise de Sequência com Séries de Oligonucleotídeos
Reação em Cadeia da Polimerase
Análise de Componente Principal
Receptores da Superfície Celular/IM
Receptores Imunológicos/GE/ME
Limites:Humano
Support, Non-U.S. Gov't
Support, U.S. Gov't, P.H.S.
Regulação para Cima
Localização:BR191.1; 09174/s


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Id:18504
Autor:Bleharski, Joshua R; Li, Huiying; Meinken, Christoph; Graeber, Thomas G; Ochoa, Maria-Teresa; Yamamura, Masahiro; Burdick, Anne; Sarno, Euzenir N; Wagner, Manfred; Röllinghoff, Martin; Rea, Thomas H; Colonna, Marco; Stenger, Steffen; Bloom, Barry R; Eisenberg, David; Modlin, Robert L
Título:Use of genetic profiling in leprosy to discriminate clinical forms of the disease
..-
Fonte:s.l; s.n; Sep. 2003. 4 p. graf.
Resumo:Leprosy presents as a clinical and immunological spectrum of disease. With the use of gene expression profiling, we observed that a distinction in gene expression correlates with and accurately classifies the clinical form of the disease. Genes belonging to the leukocyte immunoglobulin-like receptor (LIR) family were significantly up-regulated in lesions of lepromatous patients suffering from the disseminated form of the infection. In functional studies, LIR-7 suppressed innate host defense mechanisms by shifting monocyte production from interleukin-12 toward interleukin-10 and by blocking antimicrobial activity triggered by Toll-like receptors. Gene expression profiles may be useful in defining clinical forms of disease and providing insights into the regulation of immune responses to pathogens. (AU).
Descritores:HANSENIASE VIRCHOWIANA/clas
HANSENIASE VIRCHOWIANA/genet
HANSENIASE VIRCHOWIANA/imunol
HANSENIASE VIRCHOWIANA/fisiopatol
HANSENIASE TUBERCULOIDE/clas
HANSENIASE TUBERCULOIDE/genet
HANSENIASE TUBERCULOIDE/imunol
HANSENIASE TUBERCULOIDE/fisiopatol
CITOCINAS/genet
CITOCINAS/metab
PERFILACAO DA EXPRESSÃO GÊNICA
ANALISE POR CONGLOMERADOS
CONTAGEM DE COLÔNIA MICROBIANA
REGULACAO DA EXPRESSÃO GÊNICA
IMUNIDADE CELULAR
IMUNIDADE NATURAL
MACROFAGOS ALVEOLARES/microbiol
GLICOPROTEINAS DE MEMBRANA/imunol
MYCOBACTERIUM TUBERCULOSIS/cresc
MYCOBACTERIUM TUBERCULOSIS/imunol
REACAO EM CADEIA DA POLIMERASE
RECEPTORES IMUNOLOGICOS/genet
RECEPTORES IMUNOLOGICOS/metab
RECEPTORES DA SUPERFICIE CELULAR/imunol
REGULACAO PARA CIMA
 Análise de Componente Principal
 ALGORITMOS
 GENES DE IMUNOGLOBULINAS
 ANALISE DE SEQUÊNCIA COM SERIES DE OLIGONUCLEOTIDIOS
Limites:SUPPORT, NON-U.S. GOV'T
HUMANO
SUPPORT, U.S. GOV'T, P.H.S.
Meio Eletrônico: - .
Localização:BR191.1; 09142/s; BR191.1; 09145/s



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