Article: article from journal or magazin.
Review (review): journal as complete as possible of one specific subject, written based on exhaustive analyses from published work.
Adhesion molecules and cytokine production.
American Review of Respiratory Disease
6 Pt 2
Publication types: Journal Article ; Research Support, Non-U.S. Gov't ; Review
The exchange of cross-talks between cells relies on soluble factors or direct cell-cell contact. Soluble factors increase the expression of cell surface molecules that activate adjacent cells by direct contact to produce cytokines. In the lung, dendritic cells are potent inducers of T-cell proliferation, and the interaction between the two leads to the production of high amounts of TNF alpha and TNF beta. Of the molecules involved in these biologic functions, LFA-3, CD11c, and the combination of beta 1 and beta 2 integrins are the most efficient. However, blocking TNF alpha or TNF beta production does not affect the alloreaction. The interaction between activated T cells and monocytes resulted in a large production of IL-1 beta. In this reaction, CD69, CD2, and the beta 2 integrins (CD11a, b, c, and CD18) and also other molecules such as a 25- to 35-kD glycoprotein play an important part. Finally, interaction between monocytes and fibroblasts leads to the production of large amounts of collagenase and PGE2 by fibroblasts. Cell-associated IL-1, particularly IL-1 alpha and membrane-bound TNF alpha, can also play a crucial role in the process of cell-cell interaction. This interaction may be controlled by inhibitors to IL-1 and TNF.
Animals, Cell Adhesion Molecules/physiology, Cell Communication/physiology, Cytokines/antagonists & inhibitors, Cytokines/biosynthesis, Dendritic Cells/physiology, Fibroblasts/physiology, Humans, Lung/cytology, Monocytes/physiology, T-Lymphocytes/physiology
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