PMID- 18828016 OWN - NLM STAT- MEDLINE DCOM- 20090401 LR - 20181113 IS - 1432-0851 (Electronic) IS - 0340-7004 (Print) IS - 0340-7004 (Linking) VI - 58 IP - 5 DP - 2009 May TI - Effect of invariant chain on major histocompatibility complex class I molecule expression and stability on human breast tumor cell lines. PG - 729-36 LID - 10.1007/s00262-008-0595-1 [doi] AB - Invariant chain (Ii) binds to the human leukocyte antigen (HLA) class II molecule and assists it in the process of peptide acquisition. In addition, Ii binds to the HLA class I molecule, although there has been little study of its effects on the HLA class I molecule. In addition to its normal expression on antigen-presenting cells, Ii expression is up regulated in a variety of tumors. By flow cytometric analysis, we found that expression of Ii resulted in an increase in the number of cell surface HLA class I molecules and in the proportion of unstable HLA class I molecules at the surface of breast tumor cell lines. These data suggest that the expression of Ii by tumor cells may quantitatively and qualitatively alter the presentation of antigens on those cells. FAU - Lin, Xuede AU - Lin X AD - Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, USA. FAU - Wang, Xiaojian AU - Wang X FAU - Capek, Haley L AU - Capek HL FAU - Simone, Laura C AU - Simone LC FAU - Tuli, Amit AU - Tuli A FAU - Morris, Chantey R AU - Morris CR FAU - Reber, Adrian J AU - Reber AJ FAU - Solheim, Joyce C AU - Solheim JC LA - eng GR - T32 CA009476-18/CA/NCI NIH HHS/United States GR - F32 AI055152/AI/NIAID NIH HHS/United States GR - T32 CA 009476/CA/NCI NIH HHS/United States GR - T32 CA009476-19A1/CA/NCI NIH HHS/United States GR - R01 GM057428-07/GM/NIGMS NIH HHS/United States GR - F32 AI 055152/AI/NIAID NIH HHS/United States GR - R01 GM057428/GM/NIGMS NIH HHS/United States GR - P30 CA 036727/CA/NCI NIH HHS/United States GR - R01 GM057428-08/GM/NIGMS NIH HHS/United States GR - R01 GM 057428/GM/NIGMS NIH HHS/United States GR - R01 GM057428-09/GM/NIGMS NIH HHS/United States GR - P30 CA036727/CA/NCI NIH HHS/United States GR - R01 GM057428-06A2/GM/NIGMS NIH HHS/United States GR - T32 CA009476/CA/NCI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, Non-P.H.S. DEP - 20081001 PL - Germany TA - Cancer Immunol Immunother JT - Cancer immunology, immunotherapy : CII JID - 8605732 RN - 0 (Antigens, Differentiation, B-Lymphocyte) RN - 0 (Antigens, Neoplasm) RN - 0 (HLA Antigens) RN - 0 (Histocompatibility Antigens Class I) RN - 0 (Histocompatibility Antigens Class II) RN - 0 (Peptide Fragments) RN - 0 (invariant chain) SB - IM MH - Adenocarcinoma/immunology/pathology MH - *Antigen Presentation MH - Antigens, Differentiation, B-Lymphocyte/*immunology MH - Antigens, Neoplasm/*immunology MH - Breast Neoplasms/genetics/*immunology/pathology MH - Carcinoma, Hepatocellular/immunology/pathology MH - Cell Line, Tumor/immunology MH - Female MH - Flow Cytometry MH - Gene Expression Regulation, Neoplastic MH - Genes, MHC Class I MH - HLA Antigens/*immunology MH - Histocompatibility Antigens Class I/*immunology MH - Histocompatibility Antigens Class II/*immunology MH - Humans MH - Liver Neoplasms/immunology/pathology/secondary MH - Male MH - Pancreatic Neoplasms/immunology/pathology MH - Peptide Fragments/immunology MH - Prostatic Neoplasms/immunology/pathology MH - T-Lymphocytes, Cytotoxic/immunology MH - Temperature PMC - PMC2703440 MID - NIHMS70756 EDAT- 2008/10/02 09:00 MHDA- 2009/04/02 09:00 PMCR- 2008/10/01 CRDT- 2008/10/02 09:00 PHST- 2007/12/26 00:00 [received] PHST- 2008/09/09 00:00 [accepted] PHST- 2008/10/02 09:00 [pubmed] PHST- 2009/04/02 09:00 [medline] PHST- 2008/10/02 09:00 [entrez] PHST- 2008/10/01 00:00 [pmc-release] AID - 595 [pii] AID - 10.1007/s00262-008-0595-1 [doi] PST - ppublish SO - Cancer Immunol Immunother. 2009 May;58(5):729-36. doi: 10.1007/s00262-008-0595-1. Epub 2008 Oct 1.