Database : HANSEN
Search on : MACROFAGOS/FISIOL [Subject descriptor]
References found : 10 [refine]
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Id:19600
Author:Yamagami, A.
Title:Aggregation phenomenon of cultivated blood macrophages isolated from leprosy patients.
Source:Int. J. Lep;57(4):873-874, dec. 1989. .
Descriptors:Hanseníase/imunol
Hanseníase/terap
Macrófagos/imunol
Macrófagos/fisiol
Limits:Humanos
Electronic Medium:http://hansen.bvs.ilsl.br/textoc/revistas/intjlepr/1989/pdf/v57n4/v57n4cor05.pdf / en
Location:Br191.1


  2 / 10 HANSEN  
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Id:19308
Author:Shimizu, Toshiaki; Tomioka, Haruaki; Matsuoka, Masanori; Sano, Chiaki.
Title:Profiles of the mRNA expression by macrophages infected with mycobacterium leprae and mycobacterium avium complex.
Source:Int. J. Lepr;70(4):250-259, Dec., 2002. ilus, tab.
Abstract:In the present study, we examined profiles of the interaction of Mycobacterium leprae and Mycobacterium avium complex (MAC) with murine peritoneal macrophages (M phi s) in terms of up-regulation of M phi expression of proinflammatory and immunosuppressing cytolines (CKs) after infection. First, the reverse transcription polymerase chain reaction (RT-PCR) assay revealed that both MAC and M. leprae infections up-regulated M phi mRNA expression IL-12, TNF-alpha, IL-10, and transformating growth factor-beta (TGF-beta), except that M. leprae-infected M phi s showed no increase in the IL-12 mRNA expression. Second, the RT-PCR assay also showed some differences between M. leprae- and MAC-infected M phi s with respect to the modes of IL-10 and inducible nitric oxide synthase (iNOS) mRNA expression. That is MAC, but not M. leprae, infection caused a prolonged increase in the expression of IL-10 and iNOS mRNAs. Third, a ribonuclease protection assay revealed that M phi s co-infected with MAC and M. leprae showed the Il-12, TNF-alpha and IL-10 mRNA expression in an intermediate mode of those of M phi s infected with either M. leprae or MAC alone. This implies that the CK expression of M. leprae-infected M phi s may be modified by co-infection with MAC. These findings may suggest differential interactions of M. leprae and MAC organisms with murine peritoneal M phi s in terms of the activation of signal transduction pathways for expression of some kinds of immunoregulatory cytokines and immunoprotective enzymes.(AU)^ien.
Descriptors:RNA/genet
RNA/imunol
Macrófagos/citol
Macrófagos/fisiol
Mycobacterium avium/citol
Mycobacterium avium/genet
Mycobacterium leprae/citol
Mycobacterium leprae/genet
Electronic Medium:http://hansen.bvs.ilsl.br/textoc/revistas/intjlepr/2002/pdf/v70n4/v70n4a02.pdf / en
Location:BR191.1


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Id:18431
Author:Sunderkotter, Cord H; Tomimori-Yamashita, Jane; Nix, Verena; Maeda, Solange M; Sindrilaru, Anca; Mariano, Mario; Sorg, Clemens; Roth, Johannes
Title:High expression of myeloid-related proteins 8 and 14 characterizes an inflammatory active but ineffective response of macrophages during leprosy ..-
Source:s.l; s.n; 2004. 9 p. ilus, tab, graf.
Abstract:Macrophages are decisive cells for the course of leprosy as they phagocytose Mycobacterium leprae and have the potential to influence the specific immune response. Expression and release of the myeloid-related protein (MRP) 8 and MRP14 (S100A8 and S100A9) characterize a proinflammatory subtype of macrophage that is prominent in, for example, murine infection with lack of a T helper 1 cell response and in certain highly active chronic inflammations of mice and humans. We investigated cutaneous biopsies of the different forms of leprosy (41 untreated patients) including leprosy reaction type 1 (reversal reaction) and type 2 (erythema nodosum leprosum) (n=18) for expression of MRP8 and MRP14 by subtupes of macrophages. Concomitantly we determined serum levels of MRP8 and MRP14 by sandwich enzyme-linked immunosorbent assay. Expression of MRP8 and MRP14 by CD68-positive macrophages was low in tuberculoid leprosy and rose significantly in borderline tuberculoid leprosy and especially in multibacillary forms, there being expressed by mycobacteria-loaded foam cells. A significant rise of MRP8 and MRP14 expression also occurred in lepra reactions compared to the corresponding non-reactional forms. In type 2 reactions this additional increased was associated with a significant elevation of serum levels. In type 1 it was associated with expression of MRP8 and MRP14 by epitheloid and giant cells, which so far were considered not to express both proteins. In conclusion, we present evidence taht the two prominent proteins MRP8 and MRP14 can be re-expressed in vivo by tissue macrophages in chronic infection, that their increased expression is characteristic for a macrophage subtype associated with high inflammatory but low antimycobacterial activity in the absence of a T helper 1 response, and that their significant rise in serum during erythema nodosum leprosum bears diagnostic and pathophysiological relevance. (AU).
Descriptors:MYCOBACTERIUM LEPRAE/imunol
CELULAS MIELOIDES/citol
CELULAS MIELOIDES/imunol
MACROFAGOS/citol
 MACROFAGOS/imunol
 MACROFAGOS/microbiol
 MACROFAGOS/fisiol
Limits:HUMANO
Location:BR191.1; 00690/s


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Id:13479
Author:Shirahama, Tsuranobu; Cohen, Alan S
Title:Lysosomal breakdown of amyloid fibrils by macrophages ..-
Source:s.l; s.n; jun. 1971. 26 p. ilus, graf.
Abstract:Mouse peritoneal macrophages incubated with isolated human amyloid fibrils for varying periods of time up to 24 hours were studies by electron microscopy, and by electron microscopic cytochemistry for demonstration of acid phosphatase activity. The sequential changes in cytoplasmatic vacuoles in macrophages containing the amyloid fibrils and related material were analyzed and compared with those in controls and with direct enzymatic digestion of amyloid fibrils. the results suggest that the lysosome into amorphous, granular or finely filamentous material and absorbed, leaving undigested material as membranous or myeling the lysosomal enzymes into the amyloid-phagosome or the amyloid-phagolysosome was studied and interpreted as showing (1) fusion of primary lysosome (s) with the phagocytic vacuole, (2) autophagy of primary lysosome(s) into the heterophagic vacuole, and (3) transport of the enzymes into the phagocytic vacuole durectly from the Golgi associated vesicles or smooth endoplasmatic reticulum.(AU).
Descriptors:APARELHO DE GOLGI/fisiol
FOSFATASE ACIDA/anal
AMILOIDE/metab
CITOPLASMA/fisiol
RETICULO ENDOPLASMATICO/fisiol
MACROFAGOS/enzimol
MACROFAGOS/patol
MACROFAGOS/fisiol
PERITÔNIO/citol
Limits:HUMANO
ANIMAL
CAMUNDONGOS
Electronic Medium:http://www.ilsl.br
Location:BR191.1; 00056/s


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Id:12244
Author:Rambukkana, Anura; Zanazzi, George; Tapinos, Nikos; Salzer, James L
Title:Contact-dependent demyelination by mycobacterium leprae in the absence of immune cells ..-
Source:s.l; s.n; May 2002. 5 p. ilus, graf.
Descriptors:APOPTOSE
AXONIOS
AXONIOS
LINFOCITOS B
ADERENCIA BACTERIANA
DIVISAO CELULAR
COCULTURA
DOENÇAS DESMIELINIZANTES
GANGLIOS ESPINHAIS
GENES RAG-1
GLICOLIPIDIOS
HANSENIASE
HANSENIASE
HANSENIASE
HANSENIASE
MACROFAGOS
CAMUNDONGOS
CAMUNDONGOS ENDOGAMICOS C57BL
CAMUNDONGOS KNOCKOUT
MUTAÇAO
MYCOBACTERIUM LEPRAE
MYCOBACTERIUM LEPRAE
BAINHA DE MIELINA
BAINHA DE MIELINA
DEGENERAÇAO NEURAL
FIBRAS NERVOSAS MIELINIZADAS
NEURONIOS
CÉLULAS DE SCHWANN
CÉLULAS DE SCHWANN
NERVO CIATICO
NERVO CIATICO
LINFOCITOS T
CULTURA DE TECIDO
Limits:ANIMAL
Location:BR191.1; 08647/s


  6 / 10 HANSEN  
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Id:11749
Author:Rambukkana, Amura; Zanazzi, George; Tapinos, Nikos; Salzer, James L
Title:Contact-dependent demyelination by Mycobacterium leprae in the absence of immune cells ..-
Source:s.l; s.n; 2002. 5 p. ilus.
Descriptors:HANSENIASE
HANSENIASE
HANSENIASE
HANSENIASE
MYCOBACTERIUM LEPRAE
MYCOBACTERIUM LEPRAE
AXONIOS
AXONIOS
ADERENCIA BACTERIANA
DIVISAO CELULAR
COCULTURA
DOENÇAS DESMIELINIZANTES
GANGLIOS ESPINHAIS
GENES RAG-1
GLICOLIPIDIOS
MACROFAGOS
MUTAÇAO
BAINHA DE MIELINA
BAINHA DE MIELINA
DEGENERAÇAO NEURAL
FIBRAS NERVOSAS MIELINIZADAS
 NEURONIOS
 CÉLULAS DE SCHWANN
 CÉLULAS DE SCHWANN
 NERVO CIATICO
 NERVO CIATICO
 LINFOCITOS T
 CULTURA DE TECIDO
Location:BR191.1; 08525/s


  7 / 10 HANSEN  
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Id:10270
Author:Singh, Neeta; Birdi, Tannaz J; Antia, Noshir H
Title:Differential in vitro modulation of schwann cell proliferation by mycobacterium leprae and macrophages in the murine strains, Swiss white and C57BI/6 ..-
Source:s.l; s.n; 1998. 10 p. tab, graf.
Descriptors:DIVISAO CELULAR
COCULTURA
HANSENIASE
MACROFAGOS
CAMUNDONGOS
CAMUNDONGOS ENDOGAMICOS C57BL
MYCOBACTERIUM LEPRAE
CÉLULAS DE SCHWANN
CÉLULAS DE SCHWANN
CÉLULAS DE SCHWANN
CELULAS CULTIVADAS
Limits:ANIMAL
Location:BR191.1; 07165/s


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Id:10105
Author:Moura, A. C. N; Modolell, M; Mariano, M
Title:Down-regulatory effect of Mycobacterium leprae cell wall lipids on phagocytosis, oxidative respiratory burst and tumour cell killing by mouse bone marrow derived macrophages ..-
Source:s.l; s.n; 1997. 6 p. ilus, tab, graf.
Descriptors:PAREDE CELULAR
DEPRESSAO QUIMICA
HANSENIASE
LIPIDIOS
LIPIDIOS
LIPOSSOMOS
ATIVAÇAO DE MACROFAGOS
MACROFAGOS
MACROFAGOS
MACROFAGOS
CAMUNDONGOS
CAMUNDONGOS ENDOGAMICOS BALB C
CAMUNDONGOS ENDOGAMICOS C57BL
MYCOBACTERIUM LEPRAE
FAGOCITOSE
EXPLOSAO RESPIRATORIA
SUPEROXIDOS
CELULAS DA MEDULA OSSEA/*DE/PH
CELULAS CULTIVADAS
Limits:ANIMAL
Location:BR191.1; 07046/s


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Id:9961
Author:Schurr, Erwin; Malo, Danielle; Radzioch, Danuta; Buschman, Ellen; Morgan, Kenneth; Gros, Philippe; Skamene, Emil
Title:Genetic control of innate resistance to mycobacterial infections ..-
Source:s.l; s.n; 1991. 4 p. ilus, graf.
Descriptors:MAPEAMENTO CROMOSSOMICO
REGULAÇAO DA EXPRESSAO GENICA NO DESENVOLVIMENTO
MARCADORES GENÉTICOS
IMUNIDADE NATURAL
ATIVAÇAO DE MACROFAGOS
MACROFAGOS
CAMUNDONGOS
CAMUNDONGOS
CAMUNDONGOS
MICOBACTERIOSE
MICOBACTERIOSE
FENOTIPO
TUBERCULOSE
TUBERCULOSE
Location:BR191.1; 06539/s


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Id:9630
Author:Parida, S. K; Grau, G. E
Title:Role of TNF in immunopathology of leprosy ..-
Source:s.l; s.n; 1993. 9 p. ilus.
Descriptors:CITOCINAS
HANSENIASE
HANSENIASE
HANSENIASE
HANSENIASE LEPROMATOSA
HANSENIASE LEPROMATOSA
HANSENIASE LEPROMATOSA
MACACA MULATTA
MACROFAGOS
CAMUNDONGOS
CAMUNDONGOS DE CEPAS ENDOGAMICAS
TUBERCULOMA
TUBERCULOMA
FATOR DE NECROSE TUMORAL/*PH
Limits:ANIMAL
Location:BR191.1; 06562/s



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