Expression of the membrane complement regulatory proteins (CD55 and CD59) in human thymus.

CD59 is one of the key molecules involved in cell protection against autologus complement. The fact that complement regulatory proteins are able to prevent hyperacute rejection of organs in pig to primate model, raises the question of possible complement regulatory protein (CRP) involvement in the m...

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Main Authors: Agnieszka Kinsner, Sandra Coecke, Iwona Grabska-Liberek, Grzegorz Wilczyński, Aleksander Wasiutyński, Dariusz Sladowski, Iwona Kochanowska
Format: Article
Language:English
Published: Via Medica 2007-01-01
Series:Folia Histochemica et Cytobiologica
Online Access:http://czasopisma.viamedica.pl/fhc/article/view/4558
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author Agnieszka Kinsner
Sandra Coecke
Iwona Grabska-Liberek
Grzegorz Wilczyński
Aleksander Wasiutyński
Dariusz Sladowski
Iwona Kochanowska
author_facet Agnieszka Kinsner
Sandra Coecke
Iwona Grabska-Liberek
Grzegorz Wilczyński
Aleksander Wasiutyński
Dariusz Sladowski
Iwona Kochanowska
author_sort Agnieszka Kinsner
collection DOAJ
description CD59 is one of the key molecules involved in cell protection against autologus complement. The fact that complement regulatory proteins are able to prevent hyperacute rejection of organs in pig to primate model, raises the question of possible complement regulatory protein (CRP) involvement in the maturation of immunological system. We report here that in foetal and postnatal human thymus, CD59 and CD55 are primarily located on Hassall's corpuscles and medullary epithelial cells. This localization highly correlates with the expression of CD30L, which is the member of the tumour necrosis factor superfamily. Additionally, TUNEL technique was used to visualize distribution of apoptotic cells in the thymus, which revealed the presence of apoptotic cells closely associated with the Hassall's corpuscles. The observed co-localization of CD59, CD55 and CD30L might suggest an involvement of the complement system in thymic selection in humans.
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spelling doaj.art-f4d4142c4b95419e9e1f95a26d4e02932022-12-22T01:58:45ZengVia MedicaFolia Histochemica et Cytobiologica0239-85081897-56312007-01-0144426326710.5603/4558Expression of the membrane complement regulatory proteins (CD55 and CD59) in human thymus.Agnieszka KinsnerSandra CoeckeIwona Grabska-LiberekGrzegorz WilczyńskiAleksander WasiutyńskiDariusz SladowskiIwona KochanowskaCD59 is one of the key molecules involved in cell protection against autologus complement. The fact that complement regulatory proteins are able to prevent hyperacute rejection of organs in pig to primate model, raises the question of possible complement regulatory protein (CRP) involvement in the maturation of immunological system. We report here that in foetal and postnatal human thymus, CD59 and CD55 are primarily located on Hassall's corpuscles and medullary epithelial cells. This localization highly correlates with the expression of CD30L, which is the member of the tumour necrosis factor superfamily. Additionally, TUNEL technique was used to visualize distribution of apoptotic cells in the thymus, which revealed the presence of apoptotic cells closely associated with the Hassall's corpuscles. The observed co-localization of CD59, CD55 and CD30L might suggest an involvement of the complement system in thymic selection in humans.http://czasopisma.viamedica.pl/fhc/article/view/4558
spellingShingle Agnieszka Kinsner
Sandra Coecke
Iwona Grabska-Liberek
Grzegorz Wilczyński
Aleksander Wasiutyński
Dariusz Sladowski
Iwona Kochanowska
Expression of the membrane complement regulatory proteins (CD55 and CD59) in human thymus.
Folia Histochemica et Cytobiologica
title Expression of the membrane complement regulatory proteins (CD55 and CD59) in human thymus.
title_full Expression of the membrane complement regulatory proteins (CD55 and CD59) in human thymus.
title_fullStr Expression of the membrane complement regulatory proteins (CD55 and CD59) in human thymus.
title_full_unstemmed Expression of the membrane complement regulatory proteins (CD55 and CD59) in human thymus.
title_short Expression of the membrane complement regulatory proteins (CD55 and CD59) in human thymus.
title_sort expression of the membrane complement regulatory proteins cd55 and cd59 in human thymus
url http://czasopisma.viamedica.pl/fhc/article/view/4558
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