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Chaiwongkot A, Buranapraditkun S, Oranratanaphan S, Chuen-Im T, Kitkumthorn N. Efficiency of CIN2+ Detection by Thyrotropin-Releasing Hormone (TRH) Site-Specific Methylation. Viruses 2023; 15:1802. [PMID: 37766209 PMCID: PMC10535538 DOI: 10.3390/v15091802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 08/19/2023] [Accepted: 08/22/2023] [Indexed: 09/29/2023] Open
Abstract
Cervical cancer screening typically involves a Pap smear combined with high-risk human papillomavirus (hr-HPV) detection. Women with hr-HPV positivity but normal cytology, as well as those with precancerous abnormal cytology, such as low-grade squamous intraepithelial lesions (LSIL) and high-grade SIL (HSIL), are referred for colposcopy and histology examination to identify abnormal lesions, such as cervical intraepithelial neoplasia (CIN) and cervical cancer. However, in order to enhance the accuracy of detection, bioinformatics analysis of a microarray database was performed, which identified cg01009664, a methylation marker of the thyrotropin-releasing hormone (TRH). Consequently, a real-time PCR assay was developed to distinguish CIN2+ (CIN2, CIN3, and cervical cancer) from CIN2- (CIN1 and normal cervical epithelia). The real-time PCR assay utilized specific primers targeting methylated cg01009664 sites, whereas an unmethylated reaction was used to check the DNA quality. A cut-off value for the methylated reaction of Ct < 33 was established, resulting in improved precision in identifying CIN2+. In the first cohort group, the assay demonstrated a sensitivity of 93.7% and a specificity of 98.6%. In the cytology samples identified as atypical squamous cells of undetermined significance (ASC-US) and LSIL, the sensitivity and specificity for detecting CIN2+ were 95.0% and 98.9%, respectively. However, when self-collected samples from women with confirmed histology were tested, the sensitivity for CIN2+ detection dropped to 49.15%, while maintaining a specificity of 100%. Notably, the use of clinician-collected samples increased the sensitivity of TRH methylation testing. TRH methylation analysis can effectively identify women who require referral for colposcopy examinations, aiding in the detection of CIN2+.
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Affiliation(s)
- Arkom Chaiwongkot
- Department of Microbiology, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand;
- Center of Excellence in Applied Medical Virology, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand
| | - Supranee Buranapraditkun
- King Chulalongkorn Memorial Hospital, Bangkok 10330, Thailand;
- Division of Allergy and Clinical Immunology, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand
- Center of Excellence in Vaccine Research and Development (Chula Vaccine Research Center-(Chula VRC)), Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand
| | - Shina Oranratanaphan
- Department of Obstetrics and Gynecology, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand;
| | - Thanaporn Chuen-Im
- Department of Microbiology, Faculty of Science, Silpakorn University, Nakhon Pathom 73000, Thailand;
| | - Nakarin Kitkumthorn
- Department of Oral Biology, Faculty of Dentistry, Mahidol University, Bangkok 10400, Thailand
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Ittiamornlert P, Jareemit N, Phianpiset R, Kuljarusnont S, Hanamornroongruang S, Horthongkham N, Khajorndumrongcherdkul P, Ruengkhachorn I. High-risk human papillomavirus genotyping in women with atypical squamous cells of undetermined significance. Sci Rep 2023; 13:12134. [PMID: 37495771 PMCID: PMC10372087 DOI: 10.1038/s41598-023-39206-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Accepted: 07/21/2023] [Indexed: 07/28/2023] Open
Abstract
We conducted a prospective study to evaluate the prevalence of high-risk human papillomavirus (hr-HPV) positivity in women with atypical squamous cells of undetermined significance (ASC-US). Additionally, we assessed the association of hr-HPV positivity with the pathology of high-grade squamous intraepithelial lesions or worse (HSIL+) and the risk of subsequent detection of squamous intraepithelial lesions. A total of 376 women were included, with 242 (64.4%) exhibiting hr-HPV positivity. The predominant HPV genotypes were 16, 52 and 58. Factors associated with the immediate detection of HSIL+ pathology included a colposcopic impression of high-grade lesions, hr-HPV positivity, HPV 16 positivity, HPV 18 positivity, HPV 58 positivity, age less than 40 years, and biopsy of two or more pieces. However, only the first three factors were statistically significant in multivariate analysis. Among the 291 women who continued surveillance for 6 months or more, the median follow-up period was 41.8 months (interquartile range [IQR] 26.5-54.0). The prevalence of subsequent HSIL in women with hr-HPV positivity versus negativity was 3.6% versus 0.98%, respectively. The median time to the subsequent detection of SIL was 28.7 months (IQR 14.9-41.7). In conclusion, women with ASC-US in our study had a high proportion of hr-HPV positivity. Type-specific HPV testing could play a pivotal role in the development of specific management protocols for women with ASC-US.Clinical trial registration: https://thaiclinicaltrials.org , TCTR20161017002.
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Affiliation(s)
- Pornporm Ittiamornlert
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Faculty of Medicine Siriraj Hospital, Mahidol University, 2 Wanglang Road, Bangkoknoi, Bangkok, 10700, Thailand
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Chulabhorn Royal Academy, Bangkok, Thailand
| | - Nida Jareemit
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Faculty of Medicine Siriraj Hospital, Mahidol University, 2 Wanglang Road, Bangkoknoi, Bangkok, 10700, Thailand
| | - Rattiya Phianpiset
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Faculty of Medicine Siriraj Hospital, Mahidol University, 2 Wanglang Road, Bangkoknoi, Bangkok, 10700, Thailand
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Sompop Kuljarusnont
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Faculty of Medicine Siriraj Hospital, Mahidol University, 2 Wanglang Road, Bangkoknoi, Bangkok, 10700, Thailand
| | | | - Navin Horthongkham
- Department of Microbiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Pornnida Khajorndumrongcherdkul
- Division of Obstetrics and Gynaecological Nursing, Department of Nursing Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Irene Ruengkhachorn
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Faculty of Medicine Siriraj Hospital, Mahidol University, 2 Wanglang Road, Bangkoknoi, Bangkok, 10700, Thailand.
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