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Do neutralizing antibody responses generated by human papillomavirus infections favor a better outcome of low‐grade cervical lesions?
Author(s) -
Ochi Hiroyuki,
Matsumoto Koji,
Kondo Kazunari,
Oki Akinori,
Furuta Reiko,
Hirai Yasuo,
Yasugi Toshiharu,
Takatsuka Naoyoshi,
Maeda Hiroo,
Mitsuhashi Akira,
Fujii Takuma,
Kawana Kei,
Iwasaka Tsuyoshi,
Yaegashi Nobuo,
Watanabe Yoh,
Nagai Yutaka,
Kitagawa Tomoyuki,
Kanda Tadahito,
Yoshikawa Hiroyuki
Publication year - 2012
Publication title -
journal of medical virology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 121
eISSN - 1096-9071
pISSN - 0146-6615
DOI - 10.1002/jmv.23258
Subject(s) - colposcopy , medicine , antibody , neutralizing antibody , cervical intraepithelial neoplasia , hpv infection , cervical cancer , virology , papillomaviridae , immunology , human papillomavirus , cancer
To determine the role of neutralizing antibody generated by human papillomavirus (HPV) infections, baseline levels of serum neutralizing antibodies directed against HPV 16 and cervical HPV DNA were determined in 242 unvaccinated women with low‐grade cervical abnormalities, who were then monitored by cytology and colposcopy every 4 months. In women infected with HPV 16 (n = 42), abnormal cytology persisted longer in those positive for HPV 16‐specific neutralizing antibodies at baseline (median time to cytological regression: 23.8 vs. 7.2 months). Progression to cervical precancer (cervical intraepithelial neoplasia grade 3) within 5 years occurred only among women carrying HPV 16‐specific neutralizing antibodies ( P = 0.03, log‐rank test). In women infected with types other than HPV 16 (n = 200), detection of HPV 16‐specific neutralizing antibodies was not correlated with disease outcome. In conclusion, development of specific neutralizing antibodies following natural HPV 16 infection did not favor a better outcome of low‐grade cervical lesions induced by HPV 16 or by other types; rather, detection of neutralizing antibodies generated by current infection may reflect viral persistence and thus help identify those who are at high risk of disease progression. J. Med. Virol. 84: 1128–1134, 2012. © 2012 Wiley Periodicals, Inc.