FAM19A4/miR124-2 Methylation Testing and Human Papillomavirus (HPV) 16/18 Genotyping in HPV-Positive Women Under the Age of 30 Years.

BACKGROUND

High-grade squamous intraepithelial lesions (HSIL) or cervical intraepithelial neoplasia (CIN) grade 2/3 lesions in human papillomavirus (HPV)-positive women <30 years of age have high spontaneous regression rates. To reduce overtreatment, biomarkers are needed to delineate advanced CIN lesions that require treatment. We analyzed the FAM19A4/miR124-2 methylation test and HPV16/18 genotyping in HPV-positive women aged <30 years, aiming to identify CIN2/3 lesions in need of treatment.

METHODS

A European multicenter retrospective study was designed evaluating the FAM19A4/miR124-2 methylation test and HPV16/18 genotyping in cervical scrapes of 1061 HPV-positive women aged 15-29 years (690 ≤CIN1, 166 CIN2, and 205 CIN3+). A subset of 62 CIN2 and 103 CIN3 were immunohistochemically characterized by HPV E4 expression, a marker for a productive HPV infection, and p16ink4a and Ki-67, markers indicative for a transforming infection. CIN2/3 lesions with low HPV E4 expression and high p16ink4a/Ki-67 expression were considered as nonproductive, transforming CIN, compatible with advanced CIN2/3 lesions in need of treatment.

RESULTS

FAM19A4/miR124-2 methylation positivity increased significantly with CIN grade and age groups (<25, 25-29, and ≥30 years), while HPV16/18 positivity was comparable across age groups. FAM19A4/miR124-2 methylation positivity was HPV type independent. Methylation-positive CIN2/3 lesions had higher p16ink4a/Ki-67-immunoscores (P = .003) and expressed less HPV E4 (P = .033) compared with methylation-negative CIN2/3 lesions. These differences in HPV E4 and p16ink4a/Ki-67 expression were not found between HPV16/18-positive and non-16/18 HPV-positive lesions.

CONCLUSIONS

Compared with HPV16/18 genotyping, the FAM19A4/miR124-2 methylation test detects nonproductive, transforming CIN2/3 lesions with high specificity in women aged <30 years, providing clinicians supportive information about the need for treatment of CIN2/3 in young HPV-positive women.

Informations de copyright

© The Author(s) 2022. Published by Oxford University Press on behalf of the Infectious Diseases Society of America.

Déclaration de conflit d'intérêts

Potential conflicts of interest. C. J. L. M. M., R. D. M. S., and D. A. M. H. are minority shareholders of Self-screen B.V., a spin-off company of VU University Medical Center; Self-screen B.V. develops, manufactures and licences high-risk HPV and methylation marker assays for cervical cancer screening and holds patents on these tests. C. J. L. M. M. is part-time CEO of Self-screen B.V., had formerly a very small number of shares of MDXHealth and Qiagen, has received speaker fees from GlaxoSmithKline, Qiagen, and Sanofi Pasteur MSD/Merck and served occasionally on the scientific advisory boards (expert meetings) of these companies as well as Asieris Pharma/Ismar Healthcare NV (1-time payment); and received support for attending meetings and/or travel paid to author from Qiagen, GSK, SPMSD/Merck, and Self-screen B.V. J. B. is the principal investigator of studies funded in part by BD Diagnostics, Agena Bioscience, Genomica SAU, LifeRiver Biotech, and Qiagen and reports grants or contracts unrelated to this work from Capital Region of Denmark (public entity). He has received honoraria for lectures from BD Diagnostics, Roche Molecular Systems, Qiagen, and Genomica SAU. J. B. is an appointed member of the National Danish Cervical Screening Committee by the Danish Health Authority, and member of the regional cervical screening steering committee of the Capital Region of Denmark. A. O. V. has received reimbursement of travel expenses for attending conferences and honoraria for speaking from Abbott Molecular, Qiagen, and Seegene. M. d. P. has received personal fees for scientific advisory committee meetings and speaking fees from MSD and speaking fees from Roche. A. N. F. and A. T. H. are employed by Self-screen B.V., the legal manufacturer of the QIAsure Methylation Test. K. C. and R. B.’s institution has received research funding or consumables for free to support research from the following commercial entities in the last 3 years: Cepheid, Euroimmun, GeneFirst, Self-screen, Hiantis, Seegene, Roche, Abbott, and Hologic. K. C. also reports a position as advisor for nationally commissioned groups that support cervical screening in the United Kingdom (no personal payment but for work outside NHS Scotland time is reimbursed to employer). M. P. reports free-of-charge reagents and consumables received from Qiagen, Seegene, Abbott, and Roche to the author’s institution. G. G. K. reports an unpaid role as a member of the board of a patient advocacy group for gynecological cancer. All other authors report no potential conflicts. All authors have submitted the ICMJE Form for Disclosure of Potential Conflicts of Interest. Conflicts that the editors consider relevant to the content of the manuscript have been disclosed.