PMID- 15047568 OWN - NLM STAT- MEDLINE DCOM- 20040708 LR - 20200930 IS - 1040-0605 (Print) IS - 1040-0605 (Linking) VI - 287 IP - 1 DP - 2004 Jul TI - Expression of genes for B7-H3 and other T cell ligands by nasal epithelial cells during differentiation and activation. PG - L217-25 AB - Epithelial cells of the human respiratory tract express human leukocyte antigen (HLA) and the costimulatory molecules B7-1 and B7-2. Little is known, however, about the constitutive expression of genes encoding for the more recently identified members of the B7 homolog family of costimulatory molecules or about the influence of cellular differentiation and cytokines on their activity or on that of HLA or B7-1 and B7-2. Human nasal epithelial (HNE) cells were grown at the air-liquid interface (ALI) for 2 or 21 days to model in vivo conditions. Expression of genes for HLA-B and HLA-DR1 increased during mucociliary differentiation during this period and became more similar to HNE cells obtained fresh by brush biopsy from nasal turbinates. Gene transcripts for B7-H3 and B7-H2 were abundantly expressed in cells cultured at the ALI, but neither their activities nor that of B7-2 was significantly altered during differentiation. IFN-gamma and TNF-alpha upregulated mRNA encoding for both HLA molecules, but not for the B7 molecules. This study describes, for the first time, the expression of B7-H3 and B7-H2 by HNE cells and thus expands the range of potential costimulatory signals through which these cells may interact with activated mucosal T lymphocytes. In addition, the results suggest that the extent of mucociliary differentiation of cultured cells may influence this capability. FAU - Saatian, Bahman AU - Saatian B AD - Department of Environmental Health Sciences, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA. FAU - Yu, Xiao-Ying AU - Yu XY FAU - Lane, Andrew P AU - Lane AP FAU - Doyle, Thanh AU - Doyle T FAU - Casolaro, Vincenzo AU - Casolaro V FAU - Spannhake, Ernst Wm AU - Spannhake EW LA - eng GR - ES-03819/ES/NIEHS NIH HHS/United States GR - ES-09004/ES/NIEHS NIH HHS/United States PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, P.H.S. DEP - 20040326 PL - United States TA - Am J Physiol Lung Cell Mol Physiol JT - American journal of physiology. Lung cellular and molecular physiology JID - 100901229 RN - 0 (Antigens, CD) RN - 0 (Carrier Proteins) RN - 0 (HLA-B Antigens) RN - 0 (HLA-DR1 Antigen) RN - 0 (ICOSLG protein, human) RN - 0 (Inducible T-Cell Co-Stimulator Ligand) RN - 0 (Ligands) RN - 0 (Proteins) RN - 0 (Tumor Necrosis Factor-alpha) RN - 82115-62-6 (Interferon-gamma) SB - IM EIN - Am J Physiol Lung Cell Mol Physiol. 2005 Apr;288(4):L771. Yu, XiaoYing [corrected to Yu, Xiao-Ying] MH - Antigens, CD MH - Biopsy/methods MH - Carrier Proteins/genetics/*metabolism MH - Cell Differentiation/genetics MH - Cells, Cultured MH - Female MH - Gene Expression/drug effects MH - HLA-B Antigens/genetics MH - HLA-DR1 Antigen/genetics MH - Humans MH - Inducible T-Cell Co-Stimulator Ligand MH - Interferon-gamma/pharmacology MH - Ligands MH - Male MH - Nasal Mucosa/*metabolism/*pathology MH - *Proteins MH - T-Lymphocytes/*metabolism MH - Tumor Necrosis Factor-alpha/pharmacology EDAT- 2004/03/30 05:00 MHDA- 2004/07/09 05:00 CRDT- 2004/03/30 05:00 PHST- 2004/03/30 05:00 [pubmed] PHST- 2004/07/09 05:00 [medline] PHST- 2004/03/30 05:00 [entrez] AID - 00132.2003 [pii] AID - 10.1152/ajplung.00132.2003 [doi] PST - ppublish SO - Am J Physiol Lung Cell Mol Physiol. 2004 Jul;287(1):L217-25. doi: 10.1152/ajplung.00132.2003. Epub 2004 Mar 26.