The hamster cheek pouch: an immunologically privileged site suitable to the study of granulomatous infections A bolsa jugal do hamster: um local imunologicamente privilegiado, apropriado para o estudo das ¡nfecções granulomatosas

The hamster check pouch is an invagination of oral mucosa, characterized histologically as skin-like. In this paper we describe anatomical, histological and embriological features of the pouch and coment on the pouch as an immunologically privileged site since it lacks lymphatic drainage and has few...

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Published in:Revista do Instituto de Medicina Tropical de São Paulo
Main Authors: M. S. P. de Arruda, M. R. Montenegro
Format: Article in Journal/Newspaper
Language:English
Published: Universidade de São Paulo (USP) 1995
Subjects:
Online Access:https://doi.org/10.1590/S0036-46651995000400004
https://doaj.org/article/57c306b4a52a426c81f05bf9233fbe1b
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spelling ftdoajarticles:oai:doaj.org/article:57c306b4a52a426c81f05bf9233fbe1b 2024-09-09T19:28:28+00:00 The hamster cheek pouch: an immunologically privileged site suitable to the study of granulomatous infections A bolsa jugal do hamster: um local imunologicamente privilegiado, apropriado para o estudo das ¡nfecções granulomatosas M. S. P. de Arruda M. R. Montenegro 1995-08-01T00:00:00Z https://doi.org/10.1590/S0036-46651995000400004 https://doaj.org/article/57c306b4a52a426c81f05bf9233fbe1b EN eng Universidade de São Paulo (USP) http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0036-46651995000400004 https://doaj.org/toc/0036-4665 https://doaj.org/toc/1678-9946 doi:10.1590/S0036-46651995000400004 0036-4665 1678-9946 https://doaj.org/article/57c306b4a52a426c81f05bf9233fbe1b Revista do Instituto de Medicina Tropical de São Paulo, Vol 37, Iss 4, Pp 303-309 (1995) Hamster cheek pouch Inflammatory reactions Leprosy Paracoccidioidomycosis granuloma Mycobacterium leprae Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 article 1995 ftdoajarticles https://doi.org/10.1590/S0036-46651995000400004 2024-08-05T17:49:30Z The hamster check pouch is an invagination of oral mucosa, characterized histologically as skin-like. In this paper we describe anatomical, histological and embriological features of the pouch and coment on the pouch as an immunologically privileged site since it lacks lymphatic drainage and has few Langerhans cells. We present the review from literature and our observations after inoculation in the pouch of mycobacteriae (BCG, Mycobacterium tuberculosis and Mycobacterium leprae) and a fungus (Paracoccidioides brasiliensis). Lesions in the pouch were granulomatous but smaller and long lasting; even granulomatous, the reaction was inefficient to control the proliferation of agents compared with inoculation in other sites, except for BCG. Appearance of immunity was also delayed or absent and, when it was detected, a sharp decrease in number of agents in pouch lesions was observed. These observations make the pouch an interesting site for the study of the role of immune system in infeccious diseases and in granuloma formation. A bolsa jugal do hamster (BJH) é uma invaginação da mucosa oral, caracterizada histologicamente como semelhante a pele. Nesse estudo nós descrevemos algumas de suas características anatômicas, histológicas e embriológicas e comentamos sobre sua propriedade como local imunologicamente privilegiado, considerando a ausência de drenagem linfática e o reduzido número de células de Langerhans. Apresentamos também os resultados obtidos quando da inoculação de micobacterias (BCG, Mycobacterium tuberculosis e Mycobacterium leprae) e do fungo Paracoccidioides brasiliensis na bolsa jugal. Comparada com as lesões provocadas em outras localizações e, à exceção do BCG, as lesões induzidas na bolsa são menores e de maior duração e, mesmo quando granulomatosas, incapazes de controlar a multiplicação do agente; nos casos em que houve o desenvolvimento da resposta imune, ele se fez tardiamente e foi acompanhado pela redução do número de parasitas nas lesões. Essas observações apontam a bolsa jugal do hamster ... Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic Revista do Instituto de Medicina Tropical de São Paulo 37 4 303 309
institution Open Polar
collection Directory of Open Access Journals: DOAJ Articles
op_collection_id ftdoajarticles
language English
topic Hamster cheek pouch
Inflammatory reactions
Leprosy
Paracoccidioidomycosis
granuloma
Mycobacterium leprae
Arctic medicine. Tropical medicine
RC955-962
Infectious and parasitic diseases
RC109-216
spellingShingle Hamster cheek pouch
Inflammatory reactions
Leprosy
Paracoccidioidomycosis
granuloma
Mycobacterium leprae
Arctic medicine. Tropical medicine
RC955-962
Infectious and parasitic diseases
RC109-216
M. S. P. de Arruda
M. R. Montenegro
The hamster cheek pouch: an immunologically privileged site suitable to the study of granulomatous infections A bolsa jugal do hamster: um local imunologicamente privilegiado, apropriado para o estudo das ¡nfecções granulomatosas
topic_facet Hamster cheek pouch
Inflammatory reactions
Leprosy
Paracoccidioidomycosis
granuloma
Mycobacterium leprae
Arctic medicine. Tropical medicine
RC955-962
Infectious and parasitic diseases
RC109-216
description The hamster check pouch is an invagination of oral mucosa, characterized histologically as skin-like. In this paper we describe anatomical, histological and embriological features of the pouch and coment on the pouch as an immunologically privileged site since it lacks lymphatic drainage and has few Langerhans cells. We present the review from literature and our observations after inoculation in the pouch of mycobacteriae (BCG, Mycobacterium tuberculosis and Mycobacterium leprae) and a fungus (Paracoccidioides brasiliensis). Lesions in the pouch were granulomatous but smaller and long lasting; even granulomatous, the reaction was inefficient to control the proliferation of agents compared with inoculation in other sites, except for BCG. Appearance of immunity was also delayed or absent and, when it was detected, a sharp decrease in number of agents in pouch lesions was observed. These observations make the pouch an interesting site for the study of the role of immune system in infeccious diseases and in granuloma formation. A bolsa jugal do hamster (BJH) é uma invaginação da mucosa oral, caracterizada histologicamente como semelhante a pele. Nesse estudo nós descrevemos algumas de suas características anatômicas, histológicas e embriológicas e comentamos sobre sua propriedade como local imunologicamente privilegiado, considerando a ausência de drenagem linfática e o reduzido número de células de Langerhans. Apresentamos também os resultados obtidos quando da inoculação de micobacterias (BCG, Mycobacterium tuberculosis e Mycobacterium leprae) e do fungo Paracoccidioides brasiliensis na bolsa jugal. Comparada com as lesões provocadas em outras localizações e, à exceção do BCG, as lesões induzidas na bolsa são menores e de maior duração e, mesmo quando granulomatosas, incapazes de controlar a multiplicação do agente; nos casos em que houve o desenvolvimento da resposta imune, ele se fez tardiamente e foi acompanhado pela redução do número de parasitas nas lesões. Essas observações apontam a bolsa jugal do hamster ...
format Article in Journal/Newspaper
author M. S. P. de Arruda
M. R. Montenegro
author_facet M. S. P. de Arruda
M. R. Montenegro
author_sort M. S. P. de Arruda
title The hamster cheek pouch: an immunologically privileged site suitable to the study of granulomatous infections A bolsa jugal do hamster: um local imunologicamente privilegiado, apropriado para o estudo das ¡nfecções granulomatosas
title_short The hamster cheek pouch: an immunologically privileged site suitable to the study of granulomatous infections A bolsa jugal do hamster: um local imunologicamente privilegiado, apropriado para o estudo das ¡nfecções granulomatosas
title_full The hamster cheek pouch: an immunologically privileged site suitable to the study of granulomatous infections A bolsa jugal do hamster: um local imunologicamente privilegiado, apropriado para o estudo das ¡nfecções granulomatosas
title_fullStr The hamster cheek pouch: an immunologically privileged site suitable to the study of granulomatous infections A bolsa jugal do hamster: um local imunologicamente privilegiado, apropriado para o estudo das ¡nfecções granulomatosas
title_full_unstemmed The hamster cheek pouch: an immunologically privileged site suitable to the study of granulomatous infections A bolsa jugal do hamster: um local imunologicamente privilegiado, apropriado para o estudo das ¡nfecções granulomatosas
title_sort hamster cheek pouch: an immunologically privileged site suitable to the study of granulomatous infections a bolsa jugal do hamster: um local imunologicamente privilegiado, apropriado para o estudo das ¡nfecções granulomatosas
publisher Universidade de São Paulo (USP)
publishDate 1995
url https://doi.org/10.1590/S0036-46651995000400004
https://doaj.org/article/57c306b4a52a426c81f05bf9233fbe1b
geographic Arctic
geographic_facet Arctic
genre Arctic
genre_facet Arctic
op_source Revista do Instituto de Medicina Tropical de São Paulo, Vol 37, Iss 4, Pp 303-309 (1995)
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https://doaj.org/toc/0036-4665
https://doaj.org/toc/1678-9946
doi:10.1590/S0036-46651995000400004
0036-4665
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