國家衛生研究院 NHRI:Item 3990099045/4989

NHRI > National Institute of Infectious Diseases and Vaccinology > Shih-Jen Liu > Periodical Articles > Item 3990099045/4989

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Title:	T-cell response to human papillomavirus type 58 L1, E6 and E7 peptides in women with cleared infection, cervical intraepithelial neoplasia and invasive cancer
Authors:	Chan, KS;Liu, SJ;Cheung, TH;Yeo, W;Ngai, SM;Cheung, JL;Chong, P;Man, S
Contributors:	Vaccine Research and Development Center
Abstract:	Human papillomavirus (HPV) 58 exists in a relatively high prevalence in certain parts of the world including East Asia. This study examined T-cell response to HPV 58 L1, E6 and E7 peptides among women with cleared infection, cervical intraepithelial neoplasia (CIN) grade 2 and 3, and invasive cervical cancer (ICC). Peptides found reactive in the in-vitro peptide binding assay or mouse stimulating study were tested with interferon-gamma enzyme-linked immunospot (IFN-gamma ELISPOT) assay to detect peptide-specific response from the peripheral blood mononuclear cells (PBMC) collected from 91 HPV 58-infected women (32 with cleared infection, 16 CIN2, 15 CIN3, and 28 ICC). Four HLA A11-restricted HPV 58 L1 peptides located at amino acid positions 296-304, 327-335, 101-109 and 469-477 showed positive IFN-gamma ELISPOT results, and were mainly from women with cleared infection. Two HLA A11-restricted E6 peptides (amino acid positions 64-72 and 94-102), and three HLA A11-restricted E7 peptides (amino acid positions 78-86, 74-82, and 88-96) showed positive response. Response to E6 and E7 peptides was mainly observed from subjects with CIN2 or above. One HLA A2-restricted E6 peptide located at the amino acid position 99-107 had elicited positive response in two CIN2 subjects. One HLA A24-restricted L1 peptide located at amino acid position 468-476 also elicited positive response in two CIN2 subjects. In summary, this study has identified a few immunogenic epitopes for HPV 58 E6 and E7 proteins. It is worthwhile to further investigate whether response to these epitopes have a role in clearing an established cervical lesion.
Date:	2010-09
Relation:	Clinical and Vaccine Immunology. 2010 Sep;17(19):1315-1321.
Link to:	http://dx.doi.org/10.1128/cvi.00105-10
Cited Times(WOS):	https://www.webofscience.com/wos/woscc/full-record/WOS:000281444300003
Cited Times(Scopus):	http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=77956413907
Appears in Collections:	[Shih-Jen Liu] Periodical Articles [Pele Choi-Sing Chong] Periodical Articles

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