PMID- 21672354 OWN - NLM STAT- MEDLINE DCOM- 20111014 LR - 20170214 IS - 1473-2300 (Electronic) IS - 0300-0605 (Linking) VI - 39 IP - 2 DP - 2011 TI - The amount of surface HLA-I on T lymphocytes decreases in breast infiltrating ductal carcinoma patients. PG - 508-13 AB - Human leucocyte antigen class I (HLA-I), which includes HLA-A, -B and -C, is an essential immune factor participating in the antitumour immune response. The changes in HLA-I expression in peripheral blood T lymphocytes in cancer patients have yet to be defined. This study examined the expression of HLA-I on CD4(+) and CD8(+) T lymphocytes in female patients with stage I - IV breast infiltrating ductal carcinoma, benign breast tumour diseases (mammary intraductal papilloma or breast fibroadenoma), and in healthy controls. HLA-I was down-regulated on CD4(+) T lymphocytes from patients with stage III and IV cancer, and on CD8(+) T lymphocytes in patients with stage I - IV cancer compared with healthy controls. HLA-I expression in T lymphocytes may contribute towards immune-balance disorders in tumour patients. FAU - Zhao, S AU - Zhao S AD - Department of Clinical Laboratory Medicine, Qilu Hospital, Shandong University, Jinan, China. FAU - Yang, X AU - Yang X FAU - Lu, N AU - Lu N FAU - Zhang, Y AU - Zhang Y FAU - Li, X AU - Li X FAU - Li, Y AU - Li Y FAU - Zhou, Y AU - Zhou Y FAU - Wan, F AU - Wan F FAU - Zou, X AU - Zou X LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - J Int Med Res JT - The Journal of international medical research JID - 0346411 RN - 0 (Histocompatibility Antigens Class I) SB - IM MH - Adult MH - Aged MH - Breast Neoplasms/*immunology/pathology MH - CD4-Positive T-Lymphocytes/immunology MH - CD8-Positive T-Lymphocytes/immunology MH - Carcinoma, Ductal, Breast/*immunology/pathology MH - Female MH - Fluorescence MH - Histocompatibility Antigens Class I/*immunology MH - Humans MH - Middle Aged MH - T-Lymphocytes/*immunology EDAT- 2011/06/16 06:00 MHDA- 2011/10/15 06:00 CRDT- 2011/06/16 06:00 PHST- 2011/06/16 06:00 [entrez] PHST- 2011/06/16 06:00 [pubmed] PHST- 2011/10/15 06:00 [medline] AID - 10.1177/147323001103900218 [doi] PST - ppublish SO - J Int Med Res. 2011;39(2):508-13. doi: 10.1177/147323001103900218.