Natural killer cell/epithelial interactions

Taisuke Ito, Masao Takei, Ralf Paus

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Natural killer (NK) cells and epithelial cells can interact closely at sites of inflammation, contributting to the pathogenesis of inflammatory diseases such as contact hypersensitivity. However, NK cells can be found to infiltrate lesions of several skin diseases and may play an important role in the innate immune response. The interaction between NK cells and the skin are particularly interesting. Epithelial tissues, including skin and airway, are continuously exposed to pathogens, allergens and environmental contaminants, requiring profound regulation of the innate and adaptive immune systems. Skin, the largest immune tissue in the body, is composed of epidermis, dermis and appendices, including hair follicles, sebaceous glands and sweat glands. To accumulate and infiltrate within epithelial lesions, chemokine and adhesion molecules are induced by NK cells releasing several cytokines and cytotoxic granules such as interferon (IFN)γ, tumor necrosis factor (TNF)α, granulocyte macrophage-colony stimulating factor (GM-CSF), IL-5 and IL-8.Under physiological conditions, intra- and peri-epithelial NK cells are very scarce, while their number often sharply increases when epithelia undergo inflammatory changes: Apparently, NK cells and epithelial cells start their interactions after inflammation is induced. NK cells and epithelial cells start interactions after inflammation is induced. The interaction is initiated by adhesion molecules, chemokine and its receptors and cytolytic proteins. NK cells accumulate into inflamed lesions without T cell help using chemokine, chemokine receptors, adhesion molecules and cytokines. Then, NK cells release cytolytic proteins that induce apoptosis of epithelium. Thus, the conventional strategy of treating inflammatory diseases of the epithelium by inhibiting T cell responses should be complemented by modulating NK cell-epithelial cell interactions.

Original languageEnglish (US)
Title of host publicationNatural Killer Cells
PublisherElsevier Ltd
Pages289-296
Number of pages8
ISBN (Print)9780123704542
DOIs
StatePublished - Dec 1 2010
Externally publishedYes

Fingerprint

Cell Communication
Natural Killer Cells
Skin
Adhesion
T-cells
Chemokine Receptors
Chemokines
Molecules
Epithelial Cells
Tissue
Cytokines
Epithelium
Immune system
Interleukin-5
Pathogens
Granulocyte-Macrophage Colony-Stimulating Factor
Interleukin-8
Allergens
Interferons
Inflammation

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)

Cite this

Ito, T., Takei, M., & Paus, R. (2010). Natural killer cell/epithelial interactions. In Natural Killer Cells (pp. 289-296). Elsevier Ltd. https://doi.org/10.1016/B978-0-12-370454-2.00021-1

Natural killer cell/epithelial interactions. / Ito, Taisuke; Takei, Masao; Paus, Ralf.

Natural Killer Cells. Elsevier Ltd, 2010. p. 289-296.

Research output: Chapter in Book/Report/Conference proceedingChapter

Ito, T, Takei, M & Paus, R 2010, Natural killer cell/epithelial interactions. in Natural Killer Cells. Elsevier Ltd, pp. 289-296. https://doi.org/10.1016/B978-0-12-370454-2.00021-1
Ito T, Takei M, Paus R. Natural killer cell/epithelial interactions. In Natural Killer Cells. Elsevier Ltd. 2010. p. 289-296 https://doi.org/10.1016/B978-0-12-370454-2.00021-1
Ito, Taisuke ; Takei, Masao ; Paus, Ralf. / Natural killer cell/epithelial interactions. Natural Killer Cells. Elsevier Ltd, 2010. pp. 289-296
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