Article (Scientific journals)
A discrete population of squamocolumnar junction cells implicated in the pathogenesis of cervical cancer.
Herfs, Michael; Yamamoto, Yusuke; Laury, Anna et al.
2012In Proceedings of the National Academy of Sciences of the United States of America, 109 (26), p. 10516-21
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Keywords :
Adult; Alphapapillomavirus/immunology/isolation & purification/pathogenicity; Blotting, Western; Female; Humans; Immunohistochemistry; Middle Aged; Transcription, Genetic; Uterine Cervical Neoplasms/immunology/pathology/virology
Abstract :
[en] Infection by carcinogenic human papillomaviruses (HPV) results in precancers [cervical intraepithelial neoplasia (CIN)] and cancers near the ectoendocervical squamocolumnar (SC) junction of the cervix. However, the specific cells targeted by HPV have not been identified and the cellular origin of cervical cancer remains elusive. In this study, we uncovered a discrete population of SC junctional cells with unique morphology and gene-expression profile. We also demonstrated that the selected junctional biomarkers were expressed by a high percentage of high-grade CIN and cervical cancers associated with carcinogenic HPVs but rarely in ectocervical/transformation zone CINs or those associated with noncarcinogenic HPVs. That the original SC junction immunophenotype was not regenerated at new SC junctions following excision, not induced by expression of viral oncoproteins in foreskin keratinocytes, and not seen in HPV-related precursors of the vagina, vulva, and penis further support the notion that junctional cells are the source of cervical cancer. Taken together, our findings suggest that carcinogenic HPV-related CINs and cervical cancers are linked to a small, discrete cell population that localizes to the SC junction of the cervix, expresses a unique gene expression signature, and is not regenerated after excision. The findings in this study uncover a potential target for cervical cancer prevention, provide insight into the risk assessment of cervical lesions, and establish a model for elucidating the pathway to cervical cancer following carcinogenic HPV infection.
Disciplines :
Oncology
Author, co-author :
Herfs, Michael ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques > Anatomie et cytologie pathologiques
Yamamoto, Yusuke
Laury, Anna
Wang, Xia
Nucci, Marisa R.
McLaughlin-Drubin, Margaret E.
Munger, Karl
Feldman, Sarah
McKeon, Frank D.
Xian, Wa
Crum, Christopher P.
Language :
English
Title :
A discrete population of squamocolumnar junction cells implicated in the pathogenesis of cervical cancer.
Publication date :
June 2012
Journal title :
Proceedings of the National Academy of Sciences of the United States of America
ISSN :
0027-8424
eISSN :
1091-6490
Publisher :
National Academy of Sciences, Washington, United States - District of Columbia
Volume :
109
Issue :
26
Pages :
10516-21
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 07 January 2013

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