PMID- 9537772 OWN - NLM STAT- MEDLINE DCOM- 19980403 LR - 20190831 IS - 0954-7894 (Print) IS - 0954-7894 (Linking) VI - 28 IP - 1 DP - 1998 Jan TI - Cetirizine and hydrocortisone differentially regulate ICAM-1 expression and chemokine release in cultured human keratinocytes. PG - 101-9 AB - BACKGROUND: Cetirizine is a H1 histamine antagonist which possesses anti-inflammatory properties through inhibition of leucocyte recruitment and activation, and reduction of ICAM-1 expression on mucosal epithelial cells. No studies have addressed the potential anti-inflammatory activities of cetirizine on skin keratinocytes. OBJECTIVES: Cetirizine and hydrocortisone were compared in their capacity to counteract human keratinocytes activation by IFNgamma. In particular, expression of immuno-modulatory membrane molecules and chemokine release have been examined. METHODS: Keratinocyte cultures established from normal skin of healthy donors were activated by IFNgamma (100-500 U/mL) in the absence or presence of cetirizine (10(-3)-10(3) microM) or hydrocortisone (10(-3)-10(2) microM), and tested for expression of ICAM-1, HLA-DR, MHC class I and CD40 as well as for release of RANTES, IL-8, macrophage chemotactic protein-1 (MCP-1) and granulocyte macrophage-colony stimulating factor (GM-CSF). RESULTS: Cetirizine at high concentrations (10(2)-10(3) microM) markedly inhibited IFNgamma-induced expression of membrane ICAM-1, HLA-DR and up-regulation of MHC class I, but had no effect on CD40 expression. In contrast, hydrocortisone (10(2) microM) enhanced IFNgamma-induced membrane ICAM-1, reduced expression of HLA-DR and did not alter expression of MHC class I and CD40. Consistently, high doses of cetirizine decreased, whereas hydrocortisone increased, soluble ICAM-1 levels in the supernatants of IFNgamma-treated keratinocytes. The inhibiting and stimulating effects of cetirizine and hydrocortisone, respectively, on ICAM-1 expression were confirmed at the mRNA level by Northern blot analysis. Finally, cetirizine, but not hydrocortisone, inhibited the release of MCP-1 and RANTES from IFNgamma-stimulated keratinocytes. In contrast, hydrocortisone, but not cetirizine, reduced GM-CSF and IL-8 release. CONCLUSIONS: The results indicate that cetirizine has the capacity to block the IFNgamma-induced activation of keratinocytes, and thus can exert important regulatory effects on TH1 cell-mediated immune responses in the skin. The high doses required for evidencing these activities suggest the potential benefits of a topical use of cetirizine. FAU - Albanesi, C AU - Albanesi C AD - Laboratory of Immunology, Istituto Dermopatico dell'Immacolata, IRCCS, Rome, Italy. FAU - Pastore, S AU - Pastore S FAU - Fanales-Belasio, E AU - Fanales-Belasio E FAU - Girolomoni, G AU - Girolomoni G LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Clin Exp Allergy JT - Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology JID - 8906443 RN - 0 (Anti-Inflammatory Agents) RN - 0 (Antineoplastic Agents) RN - 0 (CD40 Antigens) RN - 0 (Chemokine CCL2) RN - 0 (Chemokine CCL5) RN - 0 (Chemokines) RN - 0 (HLA-DR Antigens) RN - 0 (Histamine H1 Antagonists) RN - 0 (Interleukin-8) RN - 0 (RNA, Messenger) RN - 126547-89-5 (Intercellular Adhesion Molecule-1) RN - 82115-62-6 (Interferon-gamma) RN - 83869-56-1 (Granulocyte-Macrophage Colony-Stimulating Factor) RN - WI4X0X7BPJ (Hydrocortisone) RN - YO7261ME24 (Cetirizine) SB - IM MH - Anti-Inflammatory Agents/*pharmacology MH - Antineoplastic Agents/administration & dosage/pharmacology MH - CD40 Antigens/drug effects/genetics MH - Cells, Cultured MH - Cetirizine/*pharmacology MH - Chemokine CCL2/antagonists & inhibitors/metabolism MH - Chemokine CCL5/antagonists & inhibitors/metabolism MH - Chemokines/*metabolism MH - Granulocyte-Macrophage Colony-Stimulating Factor/antagonists & inhibitors/metabolism MH - HLA-DR Antigens/biosynthesis/drug effects MH - Histamine H1 Antagonists/*pharmacology MH - Humans MH - Hydrocortisone/*pharmacology MH - Intercellular Adhesion Molecule-1/*biosynthesis/*drug effects MH - Interferon-gamma/administration & dosage/pharmacology MH - Interleukin-8/antagonists & inhibitors/metabolism MH - Keratinocytes/*cytology/drug effects/metabolism MH - RNA, Messenger/analysis/genetics EDAT- 1998/04/16 00:00 MHDA- 1998/04/16 00:01 CRDT- 1998/04/16 00:00 PHST- 1998/04/16 00:00 [pubmed] PHST- 1998/04/16 00:01 [medline] PHST- 1998/04/16 00:00 [entrez] AID - 10.1046/j.1365-2222.1998.00206.x [doi] PST - ppublish SO - Clin Exp Allergy. 1998 Jan;28(1):101-9. doi: 10.1046/j.1365-2222.1998.00206.x.