Document Detail


Stromal cells directly mediate the re-establishment of the lymph node compartments after transplantation by CXCR5 or CCL19/21 signalling.
MedLine Citation:
PMID:  21426341     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Lymph nodes (LN) are highly organized and have characteristic compartments. Destruction of these compartments leads to an inability to fulfil their immunological function. However, it is not yet clearly understood which mechanisms are involved in the development and maintenance of this organization. After transplantation of LN into the mesentery, the LN regenerate to fully functional LN. In this study, the question was addressed, how stromal cells in the B-cell follicles (follicular dendritic cells), which were identified by CD21/CD35, and stromal cells in the T-cell area (gp38+ cells) are involved via chemokine signalling. The gp38+ cells and CD21/CD35+ cells were detected in the transplanted LN (EGFP, plt/plt and CXCR5(-/-) mice) over a period of 8 weeks to analyse their competence to reconstruct the compartmental organization. The presence of gp38+ cells was stable during regeneration and these cells reconstructed the T-cell area within 4 weeks. After transplantation of plt/plt LN CCL19/CCL21 expression was observed leading to partial restoration of the T-cell area. In contrast, there were changes in the presence and morphology of CD21/CD35+ cells within the B-cell area during reconstruction, which was dependent on the presence of B cells and CXCL13/CXCR5 signalling. Hence, CD21/CD35+ cells and gp38+ cells are involved in the establishment of the compartmental organization of lymph nodes but using different ways to recruit lymphocytes via chemokine signalling.
Authors:
Manuela Buettner; Ulrike Bode
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2011-03-23
Journal Detail:
Title:  Immunology     Volume:  133     ISSN:  1365-2567     ISO Abbreviation:  Immunology     Publication Date:  2011 Jun 
Date Detail:
Created Date:  2011-04-26     Completed Date:  2011-06-30     Revised Date:  2013-06-30    
Medline Journal Info:
Nlm Unique ID:  0374672     Medline TA:  Immunology     Country:  England    
Other Details:
Languages:  eng     Pagination:  257-69     Citation Subset:  IM    
Copyright Information:
© 2011 The Authors. Immunology © 2011 Blackwell Publishing Ltd.
Affiliation:
Institute of Functional and Applied Anatomy, Hannover Medical School, Carl-Neuberg-Strasse 1, Hannover, Germany.
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MeSH Terms
Descriptor/Qualifier:
Animals
B-Lymphocytes / immunology
Cell Proliferation
Chemokine CCL19 / immunology*
Chemokine CCL21 / immunology*
Female
Lymph Nodes / cytology,  immunology*,  transplantation
Membrane Glycoproteins / immunology
Mice
Mice, Inbred C57BL
Mice, Transgenic
Receptors, CXCR5
Receptors, Complement 3b / immunology
Signal Transduction
Stromal Cells / cytology,  immunology*
T-Lymphocytes / immunology
Chemical
Reg. No./Substance:
0/Chemokine CCL19; 0/Chemokine CCL21; 0/Gp38 protein, mouse; 0/Membrane Glycoproteins; 0/Receptors, CXCR5; 0/Receptors, Complement 3b
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