Histological Disorganization of Spleen Compartments and Severe Visceral Leishmaniasis

The spleen is a secondary lymphoid organ responsible for immune surveillance against blood-circulating pathogens. Absence of the spleen is associated with increased susceptibility to systemic spread and fatal infection by different pathogens. Severe forms of visceral leishmaniasis are associated wit...

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Main Authors: Micely d'El-Rei Hermida, Caroline Vilas Boas de Melo, Isadora dos Santos Lima, Geraldo Gileno de Sá Oliveira, Washington L. C. dos-Santos
Format: Article
Language:English
Published: Frontiers Media S.A. 2018-11-01
Series:Frontiers in Cellular and Infection Microbiology
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fcimb.2018.00394/full
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author Micely d'El-Rei Hermida
Caroline Vilas Boas de Melo
Isadora dos Santos Lima
Geraldo Gileno de Sá Oliveira
Washington L. C. dos-Santos
author_facet Micely d'El-Rei Hermida
Caroline Vilas Boas de Melo
Isadora dos Santos Lima
Geraldo Gileno de Sá Oliveira
Washington L. C. dos-Santos
author_sort Micely d'El-Rei Hermida
collection DOAJ
description The spleen is a secondary lymphoid organ responsible for immune surveillance against blood-circulating pathogens. Absence of the spleen is associated with increased susceptibility to systemic spread and fatal infection by different pathogens. Severe forms of visceral leishmaniasis are associated with disorganization of spleen compartments where cell interactions essential for splenic immunological function take place. White pulp atrophies, secondary lymphoid follicles and marginal zones vanish, and the boundaries separating white and red pulp blur. Leukocyte populations are reduced or disappear or are replaced by plasma cells. In this paper, we review the published data on spleen disorganization in severe forms of visceral leishmaniasis and propose a histological classification to help the exchange of information among research groups.
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spelling doaj.art-bdc8226277c349dab10faf2c2a0b53852022-12-22T01:33:57ZengFrontiers Media S.A.Frontiers in Cellular and Infection Microbiology2235-29882018-11-01810.3389/fcimb.2018.00394408184Histological Disorganization of Spleen Compartments and Severe Visceral LeishmaniasisMicely d'El-Rei HermidaCaroline Vilas Boas de MeloIsadora dos Santos LimaGeraldo Gileno de Sá OliveiraWashington L. C. dos-SantosThe spleen is a secondary lymphoid organ responsible for immune surveillance against blood-circulating pathogens. Absence of the spleen is associated with increased susceptibility to systemic spread and fatal infection by different pathogens. Severe forms of visceral leishmaniasis are associated with disorganization of spleen compartments where cell interactions essential for splenic immunological function take place. White pulp atrophies, secondary lymphoid follicles and marginal zones vanish, and the boundaries separating white and red pulp blur. Leukocyte populations are reduced or disappear or are replaced by plasma cells. In this paper, we review the published data on spleen disorganization in severe forms of visceral leishmaniasis and propose a histological classification to help the exchange of information among research groups.https://www.frontiersin.org/article/10.3389/fcimb.2018.00394/fullvisceral leishmaniasiswhite pulp disruptionspleen disorganizationLeishmania infantumspleen pathology
spellingShingle Micely d'El-Rei Hermida
Caroline Vilas Boas de Melo
Isadora dos Santos Lima
Geraldo Gileno de Sá Oliveira
Washington L. C. dos-Santos
Histological Disorganization of Spleen Compartments and Severe Visceral Leishmaniasis
Frontiers in Cellular and Infection Microbiology
visceral leishmaniasis
white pulp disruption
spleen disorganization
Leishmania infantum
spleen pathology
title Histological Disorganization of Spleen Compartments and Severe Visceral Leishmaniasis
title_full Histological Disorganization of Spleen Compartments and Severe Visceral Leishmaniasis
title_fullStr Histological Disorganization of Spleen Compartments and Severe Visceral Leishmaniasis
title_full_unstemmed Histological Disorganization of Spleen Compartments and Severe Visceral Leishmaniasis
title_short Histological Disorganization of Spleen Compartments and Severe Visceral Leishmaniasis
title_sort histological disorganization of spleen compartments and severe visceral leishmaniasis
topic visceral leishmaniasis
white pulp disruption
spleen disorganization
Leishmania infantum
spleen pathology
url https://www.frontiersin.org/article/10.3389/fcimb.2018.00394/full
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