PMID- 21951768 OWN - NLM STAT- MEDLINE DCOM- 20120817 LR - 20161020 IS - 1442-2050 (Electronic) IS - 1120-8694 (Linking) VI - 25 IP - 3 DP - 2012 Apr TI - Human leukocyte antigen class I on peripheral blood mononuclear cells as a non-invasive biomarker for esophageal cancer. PG - 273-8 LID - 10.1111/j.1442-2050.2011.01245.x [doi] AB - Esophageal cancer (EC) is a common malignant cancer threatening people's health. There are no universally accepted parameters for its early diagnosis. The aim of this study was to observe the expression of human leukocyte antigen class I (HLA-I) on peripheral blood mononuclear cells (PBMCs) of EC patients and in individuals of high-incidence area of EC so as to evaluate the feasibility of using this parameter as a potential non-invasive biomarker for the early diagnosis of EC. The present study enrolled 58 pathological confirmed EC patients, 46 patients with benign esophageal disease, and 65 healthy volunteers. Expression levels of HLA-I protein and mRNA on PBMCs were determined by flow cytometry and quantitative reverse transcriptase polymerase chain reaction, respectively. Then, 181 volunteers from Lijiadian, a village with high morbidity of EC, and 153 age- and gender-matched health volunteers were involved in this study to observe HLA-I expressions in individuals of high-incidence area of EC. Compared with benign esophageal disease and health volunteers, the expressions of HLA-I protein and mRNA on PBMCs of EC patients are significantly decreased, especially in patients with stage III and IV EC, but was not influenced by patient's age and gender. Furthermore, individuals of high-incidence area of EC also show downregulated HLA-I protein, but not mRNA, expression on PBMCs. Altogether, HLA-I expression on PBMCs of EC patients and individuals from high-incidence area of EC is downregulated, and this parameter might be used as a potential predictor of EC. CI - (c) 2011 Copyright the Authors. Journal compilation (c) 2011, Wiley Periodicals, Inc. and the International Society for Diseases of the Esophagus. FAU - Zhang, Z AU - Zhang Z AD - Department of Health Examination Center, Qilu Hospital, Shandong University, Jinan, China. zhangzhimian@126.com FAU - Li, Y AU - Li Y FAU - Guan, X AU - Guan X FAU - Yang, X AU - Yang X FAU - Yang, X AU - Yang X FAU - Li, S AU - Li S FAU - Zou, X AU - Zou X LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20110923 PL - United States TA - Dis Esophagus JT - Diseases of the esophagus : official journal of the International Society for Diseases of the Esophagus JID - 8809160 RN - 0 (Biomarkers, Tumor) RN - 0 (Histocompatibility Antigens Class I) RN - 0 (RNA, Messenger) SB - IM MH - Adult MH - Aged MH - Biomarkers, Tumor/*blood MH - Carcinoma, Squamous Cell/*blood/genetics/*pathology MH - China MH - Down-Regulation MH - Esophageal Neoplasms/*blood/genetics/*pathology MH - Female MH - Histocompatibility Antigens Class I/*metabolism MH - Humans MH - Leukocytes, Mononuclear/*metabolism MH - Male MH - Middle Aged MH - Neoplasm Staging MH - RNA, Messenger/metabolism EDAT- 2011/09/29 06:00 MHDA- 2012/08/18 06:00 CRDT- 2011/09/29 06:00 PHST- 2011/09/29 06:00 [entrez] PHST- 2011/09/29 06:00 [pubmed] PHST- 2012/08/18 06:00 [medline] AID - 10.1111/j.1442-2050.2011.01245.x [doi] PST - ppublish SO - Dis Esophagus. 2012 Apr;25(3):273-8. doi: 10.1111/j.1442-2050.2011.01245.x. Epub 2011 Sep 23.