Document Detail


Epithelial expression of the cytosolic retinoid chaperone cellular retinol binding protein II is essential for in vivo imprinting of local gut dendritic cells by lumenal retinoids.
MedLine Citation:
PMID:  22222225     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Dendritic cells (DCs) use all-trans retinoic acid (ATRA) to promote characteristic intestinal responses, including Foxp3(+) Treg conversion, lymphocyte gut homing molecule expression, and IgA production. How this ability to generate ATRA is conferred to DCs in vivo remains largely unstudied. Here, we observed that among DCs, retinaldehyde dehydrogenase (ALDH1), which catalyzes the conversion of retinal to ATRA, was preferentially expressed by small intestine CD103(+) lamina propria (LP) DCs. Retinoids induced LP CD103(+) DCs to generate ATRA via ALDH1 activity. Either biliary or dietary retinoids were required to confer ALDH activity to LP DCs in vivo. Cellular retinol-binding protein II (CRBPII), a cytosolic retinoid chaperone that directs enterocyte retinol and retinal metabolism but is redundant to maintain serum retinol, was required to confer ALDH activity to CD103(+) LP DCs. CRBPII expression was restricted to small intestine epithelial cells, and ALDH activity in CRBPII(-/-) DCs was restored by transfer to a wild-type recipient. CD103(+) LP DCs from CRBPII(-/-) mice had a decreased capacity to promote IgA production. Moreover, CD103(+) DCs preferentially associated with the small intestine epithelium and LP CD103(+) DC ALDH activity, and the ability to promote IgA production was reduced in mice with impaired DC-epithelia associations. These findings demonstrate in vivo roles for the expression of epithelial CRBPII and lumenal retinoids to imprint local gut DCs with an intestinal phenotype.
Authors:
Keely G McDonald; Matthew R Leach; Kaitlin W M Brooke; Caihong Wang; Leroy W Wheeler; Elyse K Hanly; Christopher W Rowley; Marc S Levin; Michael Wagner; Ellen Li; Rodney D Newberry
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural     Date:  2012-01-02
Journal Detail:
Title:  The American journal of pathology     Volume:  180     ISSN:  1525-2191     ISO Abbreviation:  Am. J. Pathol.     Publication Date:  2012 Mar 
Date Detail:
Created Date:  2012-02-20     Completed Date:  2012-04-27     Revised Date:  2012-05-14    
Medline Journal Info:
Nlm Unique ID:  0370502     Medline TA:  Am J Pathol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  984-97     Citation Subset:  AIM; IM    
Copyright Information:
Copyright © 2012 American Society for Investigative Pathology. Published by Elsevier Inc. All rights reserved.
Affiliation:
Department of Internal Medicine, Washington University School of Medicine, St. Louis, Missouri 63110, USA.
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MeSH Terms
Descriptor/Qualifier:
Animals
Antigens, CD / metabolism
Dendritic Cells / immunology,  metabolism*
Immunity, Cellular / physiology
Immunoglobulin A / biosynthesis*
Integrin alpha Chains / metabolism
Interleukin-6 / metabolism
Intestine, Small / cytology,  immunology,  metabolism*
Isoenzymes / metabolism*
Mice
Mice, Inbred C57BL
Mice, Inbred Strains
Phenotype
Retinal Dehydrogenase / metabolism*
Retinol-Binding Proteins, Cellular / metabolism*
Tretinoin / metabolism*
Grant Support
ID/Acronym/Agency:
AI083538/AI/NIAID NIH HHS; DK050446/DK/NIDDK NIH HHS; DK064798/DK/NIDDK NIH HHS; DK085941/DK/NIDDK NIH HHS; P30-CA91842/CA/NCI NIH HHS; P30-DK52574/DK/NIDDK NIH HHS; R01 DK064798-08/DK/NIDDK NIH HHS; R21 AI083538-02/AI/NIAID NIH HHS
Chemical
Reg. No./Substance:
0/Antigens, CD; 0/Immunoglobulin A; 0/Integrin alpha Chains; 0/Interleukin-6; 0/Isoenzymes; 0/Rbp2 protein, mouse; 0/Retinol-Binding Proteins, Cellular; 0/alpha E integrins; 302-79-4/Tretinoin; EC 1.2.1.-/aldehyde dehydrogenase 1; EC 1.2.1.36/Retinal Dehydrogenase

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