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Lymphocyte CC chemokine receptor 9 and epithelial thymus-expressed chemokine (TECK) expression distinguish the small intestinal immune compartment: Epithelial expression of tissue-specific chemokines as an organizing principle in regional immunity

Kunkel, E J; Campbell, J J; Haraldsen, G; Pan, J; Boisvert, J; Roberts, A I; Ebert, E C; Vierra, M A; Goodman, S B and Genovese, M C, et al. (2000) In Journal of Experimental Medicine 192(5). p.761-768
Abstract
The immune system has evolved specialized cellular and molecular mechanisms for targeting and regulating immune responses at epithelial surfaces. Here we show that small intestinal intraepithelial lymphocytes and lamina propria lymphocytes migrate to thymus-expressed chemokine (TECK). This attraction is mediated by CC chemokine receptor (CCR)9, a chemoattractant receptor expressed at high levels by essentially all CD4(+) and CD8(+) T lymphocytes in the small intestine. Only a small subset of lymphocytes in the colon are CCR9(+), and lymphocytes from other tissues including tonsils, lung, inflamed liver, normal or inflamed skin, inflamed synovium and synovial fluid, breast milk, and seminal fluid are universally CCR9(-). TECK expression is... (More)
The immune system has evolved specialized cellular and molecular mechanisms for targeting and regulating immune responses at epithelial surfaces. Here we show that small intestinal intraepithelial lymphocytes and lamina propria lymphocytes migrate to thymus-expressed chemokine (TECK). This attraction is mediated by CC chemokine receptor (CCR)9, a chemoattractant receptor expressed at high levels by essentially all CD4(+) and CD8(+) T lymphocytes in the small intestine. Only a small subset of lymphocytes in the colon are CCR9(+), and lymphocytes from other tissues including tonsils, lung, inflamed liver, normal or inflamed skin, inflamed synovium and synovial fluid, breast milk, and seminal fluid are universally CCR9(-). TECK expression is also restricted to the small intestine: immunohistochemistry reveals that intense anti-TECK reactivity characterizes crypt epithelium in the jejunum and ileum, but not in other epithelia of the digestive tract (including stomach and colon), skin, lung, or salivary gland. These results imply a restricted role for lymphocyte CCR9 and its ligand TECK in the small intestine, and provide the first evidence for distinctive mechanisms of lymphocyte recruitment that may permit functional specialization of immune responses in different segments of the gastrointestinal tract. Selective expression of chemokines by differentiated epithelium may represent an important mechanism for targeting and specialization of immune responses. (Less)
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published
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keywords
leukocyte, gastrointestinal tract, trafficking, epithelium, lamina propria lymphocytes
in
Journal of Experimental Medicine
volume
192
issue
5
pages
761 - 768
publisher
Rockefeller University Press
external identifiers
  • pmid:10974041
  • scopus:0034605043
ISSN
1540-9538
language
English
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yes
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e72069ad-fad9-4eb6-bd50-ed955e767426 (old id 1116331)
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http://www.jem.org/cgi/content/full/192/5/761
date added to LUP
2008-07-01 12:01:06
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2017-11-05 04:33:59
@article{e72069ad-fad9-4eb6-bd50-ed955e767426,
  abstract     = {The immune system has evolved specialized cellular and molecular mechanisms for targeting and regulating immune responses at epithelial surfaces. Here we show that small intestinal intraepithelial lymphocytes and lamina propria lymphocytes migrate to thymus-expressed chemokine (TECK). This attraction is mediated by CC chemokine receptor (CCR)9, a chemoattractant receptor expressed at high levels by essentially all CD4(+) and CD8(+) T lymphocytes in the small intestine. Only a small subset of lymphocytes in the colon are CCR9(+), and lymphocytes from other tissues including tonsils, lung, inflamed liver, normal or inflamed skin, inflamed synovium and synovial fluid, breast milk, and seminal fluid are universally CCR9(-). TECK expression is also restricted to the small intestine: immunohistochemistry reveals that intense anti-TECK reactivity characterizes crypt epithelium in the jejunum and ileum, but not in other epithelia of the digestive tract (including stomach and colon), skin, lung, or salivary gland. These results imply a restricted role for lymphocyte CCR9 and its ligand TECK in the small intestine, and provide the first evidence for distinctive mechanisms of lymphocyte recruitment that may permit functional specialization of immune responses in different segments of the gastrointestinal tract. Selective expression of chemokines by differentiated epithelium may represent an important mechanism for targeting and specialization of immune responses.},
  author       = {Kunkel, E J and Campbell, J J and Haraldsen, G and Pan, J and Boisvert, J and Roberts, A I and Ebert, E C and Vierra, M A and Goodman, S B and Genovese, M C and Wardlaw, A J and Greenberg, H B and Parker, C M and Butcher, E C and Andrew, D P and Agace, William},
  issn         = {1540-9538},
  keyword      = {leukocyte,gastrointestinal tract,trafficking,epithelium,lamina propria lymphocytes},
  language     = {eng},
  number       = {5},
  pages        = {761--768},
  publisher    = {Rockefeller University Press},
  series       = {Journal of Experimental Medicine},
  title        = {Lymphocyte CC chemokine receptor 9 and epithelial thymus-expressed chemokine (TECK) expression distinguish the small intestinal immune compartment: Epithelial expression of tissue-specific chemokines as an organizing principle in regional immunity},
  volume       = {192},
  year         = {2000},
}