PMID- 21035918 OWN - NLM STAT- MEDLINE DCOM- 20121009 LR - 20151119 IS - 1532-818X (Electronic) IS - 0196-0709 (Linking) VI - 33 IP - 2 DP - 2012 Mar-Apr TI - Expression of nonclassical molecule human leukocyte antigen-G in oral lesions. PG - 193-8 LID - 10.1016/j.amjoto.2010.08.001 [doi] AB - INTRODUCTION: Human leukocyte antigen (HLA)-G is a nonclassic class I molecule that acts as a modulator of immune responses, and the expression of these molecules in virus-infected cells has been associated with subversion of the immune response. OBJECTIVE: In this study, we performed a cross-sectional study, systematically comparing the expression of the HLA-G in benign, premalignant, and malignant oral lesions and correlating it with the presence of high-risk and low-risk human papillomavirus (HPV) types. SPECIMENS AND METHODS: Oral biopsies were collected from 51 patients and analyzed by immunohistochemistry using anti-HLA-G antibody. Human papillomavirus detection and typing from oral biopsies were obtained by polymerase chain reaction using GP5+/GP6+ and specific primers. RESULTS: The 51 biopsies were stratified into 3 groups according to lesion grade: oral benign lesions (oral hyperplasia and papilloma, n = 16), oral premalignant lesions (oral leukoplakia with dysplasia and lichen planus, n = 17), and malignant lesions (oral squamous cell carcinoma, n = 18). Human leukocyte antigen-G overexpression was mainly observed in benign and premalignant oral lesions but was not related to HPV infection (P > .05). On the other hand, HPV DNA was detected in 24 (47%) oral lesions, mainly in benign and premalignant lesions, with the most frequent type detected being high-risk HPV type. CONCLUSION: The HLA-G molecule was expressed in a significant number of benign oral lesions and was not correlated with HPV infection or oral cancer. CI - Crown Copyright (c) 2012. Published by Elsevier Inc. All rights reserved. FAU - Fregonezi, Paula A G AU - Fregonezi PA AD - Department of Clinical Analyses, School of Pharmaceutical Sciences of Araraquara, University of Sao Paulo State, Araraquara, SP, Brazil. FAU - Silva, Tarsia G A AU - Silva TG FAU - Simoes, Renata T AU - Simoes RT FAU - Moreau, Philipe AU - Moreau P FAU - Carosella, Edgardo D AU - Carosella ED FAU - Klay, Carla P M AU - Klay CP FAU - Goncalves, Maria A G AU - Goncalves MA FAU - Soares, Edson G AU - Soares EG FAU - Souto, Francisco AU - Souto F FAU - Donadi, Eduardo A AU - Donadi EA FAU - Soares, Christiane P AU - Soares CP LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20101029 PL - United States TA - Am J Otolaryngol JT - American journal of otolaryngology JID - 8000029 RN - 0 (Biomarkers, Tumor) RN - 0 (HLA-G Antigens) SB - IM MH - Biomarkers, Tumor/biosynthesis/immunology MH - Biopsy MH - Cross-Sectional Studies MH - Follow-Up Studies MH - HLA-G Antigens/*biosynthesis/immunology MH - Humans MH - *Immunity, Cellular MH - Immunohistochemistry MH - Mouth Mucosa/metabolism/pathology MH - Mouth Neoplasms/immunology/*metabolism/pathology MH - Retrospective Studies EDAT- 2010/11/03 06:00 MHDA- 2012/10/10 06:00 CRDT- 2010/11/02 06:00 PHST- 2009/10/27 00:00 [received] PHST- 2010/08/05 00:00 [revised] PHST- 2010/08/10 00:00 [accepted] PHST- 2010/11/02 06:00 [entrez] PHST- 2010/11/03 06:00 [pubmed] PHST- 2012/10/10 06:00 [medline] AID - S0196-0709(10)00147-X [pii] AID - 10.1016/j.amjoto.2010.08.001 [doi] PST - ppublish SO - Am J Otolaryngol. 2012 Mar-Apr;33(2):193-8. doi: 10.1016/j.amjoto.2010.08.001. Epub 2010 Oct 29.