Document Detail


Comparative analyses of B cell populations in trout kidney and mouse bone marrow: establishing "B cell signatures".
MedLine Citation:
PMID:  20705088     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
This study aimed to identify the frequency and distribution of developing B cell populations in the kidney of the rainbow trout, using four molecular B cell markers that are highly conserved between species, including two transcription factors, Pax5 and EBF1, recombination-activating gene RAG1, and the immunoglobulin heavy chain mu. Three distinct B cell stages were defined: early developing B cells (CLP, pro-B, and early pre-B cells), late developing B cell (late pre-B, immature B, and mature B cells), and IgM-secreting cells. Developmental stage-specific, combinatorial expression of Pax5, EBF1, RAG1 and immunoglobulin mu was determined in trout anterior kidney cells by flow cytometry. Trout staining patterns were compared to a well-defined primary immune tissue, mouse bone marrow, and using mouse surface markers B220 and CD43. A remarkable level of similarity was uncovered between the primary immune tissues of both species. Subsequent analysis of the entire trout kidney, divided into five contiguous segments K1-K5, revealed a complex pattern of early developing, late developing, and IgM-secreting B cells. Patterns in anterior kidney segment K1 were most similar to those of mouse bone marrow, while the most posterior part of the kidney, K5, had many IgM-secreting cells, but lacked early developing B cells. A potential second B lymphopoiesis site was uncovered in segment K4 of the kidney. The B cell patterns, or "B cell signatures" described here provide information on the relative abundance of distinct developing B cell populations in the trout kidney, and can be used in future studies on B cell development in other vertebrate species.
Authors:
Patty Zwollo; Katrina Mott; Maggie Barr
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, N.I.H., Extramural     Date:  2010-08-14
Journal Detail:
Title:  Developmental and comparative immunology     Volume:  34     ISSN:  1879-0089     ISO Abbreviation:  Dev. Comp. Immunol.     Publication Date:  2010 Dec 
Date Detail:
Created Date:  2010-09-24     Completed Date:  2011-01-20     Revised Date:  2013-03-05    
Medline Journal Info:
Nlm Unique ID:  7708205     Medline TA:  Dev Comp Immunol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1291-9     Citation Subset:  IM    
Copyright Information:
Copyright © 2010 Elsevier Ltd. All rights reserved.
Affiliation:
Department of Biology, The College of William and Mary, Williamsburg, VA 23188, United States. pxzwol@wm.edu
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MeSH Terms
Descriptor/Qualifier:
Animals
Antigens, CD43 / analysis
Antigens, CD45 / analysis
B-Cell-Specific Activator Protein / analysis
B-Lymphocytes / immunology*,  metabolism
Biological Markers / analysis
Blotting, Western
Bone Marrow / immunology*
Cell Differentiation
Flow Cytometry
Gene Expression
Homeodomain Proteins / analysis
Immunoglobulin Heavy Chains / analysis
Immunoglobulin mu-Chains / analysis
Kidney / immunology*
Lymphopoiesis*
Mice
Precursor Cells, B-Lymphoid
Trans-Activators / analysis
Transcription Factors / genetics
Trout / genetics,  immunology*
Grant Support
ID/Acronym/Agency:
R15 A1070249-02//PHS HHS; R15 AI070249-01/AI/NIAID NIH HHS; R15 AI070249-02/AI/NIAID NIH HHS
Chemical
Reg. No./Substance:
0/Antigens, CD43; 0/B-Cell-Specific Activator Protein; 0/Biological Markers; 0/Ebf1 protein, mouse; 0/Homeodomain Proteins; 0/Immunoglobulin Heavy Chains; 0/Immunoglobulin mu-Chains; 0/Pax5 protein, mouse; 0/Trans-Activators; 0/Transcription Factors; 128559-51-3/RAG-1 protein; EC 3.1.3.48/Antigens, CD45
Comments/Corrections

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