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Aromseree S, Wongjumpa W, Ekalaksananan T, Temtanakitpaisan A, Kleebkaow P, Srisathaporn S, Tongchai P, Pientong C. P16/Ki-67 Dual Staining in Positive Human Papillomavirus DNA Testing for Predictive Diagnosis of Abnormal Cervical Lesions in Northeastern Thai Women. Asian Pac J Cancer Prev 2022; 23:3405-3411. [PMID: 36308365 PMCID: PMC9924320 DOI: 10.31557/apjcp.2022.23.10.3405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Indexed: 11/06/2022] Open
Abstract
OBJECTIVE Cervical cancer screening can effectively reduce new cervical cancer cases, including in Thailand. The abnormal results are subsequently referred for colposcopy. To avoid unnecessary colposcopy, an efficient triage is still needed for validation. This study aimed to investigate the overall positivity of cytology-based screening, HPV detection, and p16/Ki-67 dual staining and evaluate different triage strategies for predictive diagnosis of abnormal cervical lesions in northeastern Thailand. METHODS Cervical cells were collected from 191 women who came for cervical screening in the gynecological outpatient department during March 2019-February 2020. Pap smear samples were classified into 6 groups including 17 atypical glandular cells (AGC), 21 atypical squamous cells of undetermined significance (ASC-US), 7 atypical squamous cells - cannot exclude HSIL (ASC-H), 26 low-grade squamous intraepithelial lesions (LSILs), 19 high-grade SILs (HSILs) and 101 no squamous intraepithelial lesion (noSIL). Polymerase chain reaction (PCR) was performed for HPV DNA detection. HPV genotyping was determined by reverse line blot hybridization. P16/Ki-67 dual staining was performed by using CINtec PLUS Cytology kit. Biopsies from abnormal screening were collected for surgical pathology classification. RESULTS High-risk HPV (HR-HPV) infection was 2.97%, 29.41%, 38.10%, 57.14%, 46.15% and 84.21% in noSIL, AGC, ASC-US, ASC-H, LSIL and HSIL cytology respectively. P16/ Ki-67 in noSIL, AGC, ASC-US, ASC-H, LSIL and HSIL was 0.99%, 5.88%, 9.52%, 42.86%, 26.92% and 63.16%, respectively (P-value < 0.001). Among p16/Ki-67 positive cases, 96.15% (25/26) were infected with HPV and 84.62% (22/26) were HR-HPV. The overall positivity of each and co-testing between cytology or HPV DNA testing or p16/Ki-67 dual staining was evaluated. In each cervical lesion, primary HPV DNA testing showed the highest sensitivity, but low specificity. The combined all HPV/HR-HPV with p16/Ki-67 detection increased the specificity of abnormal cervical lesions. CONCLUSION P16/Ki-67 dual stain cytology in HPV-positive women performs well for diagnosis of abnormal cervical lesions and should be considered for management of HPV-positive women to avoid unnecessary colposcopy referrals.
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Affiliation(s)
- Sirinart Aromseree
- Department of Microbiology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand. ,HPV & EBV and Carcinogenesis Research Group, Khon Kaen University, Khon Kaen, 40002, Thailand.
| | - Weerayut Wongjumpa
- HPV & EBV and Carcinogenesis Research Group, Khon Kaen University, Khon Kaen, 40002, Thailand.
| | - Tipaya Ekalaksananan
- Department of Microbiology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand. ,HPV & EBV and Carcinogenesis Research Group, Khon Kaen University, Khon Kaen, 40002, Thailand.
| | - Amornrat Temtanakitpaisan
- Department of Obstetrics and Gynecology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand.
| | - Pilaiwan Kleebkaow
- Department of Obstetrics and Gynecology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand.
| | - Sawarot Srisathaporn
- Department of Microbiology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand. ,HPV & EBV and Carcinogenesis Research Group, Khon Kaen University, Khon Kaen, 40002, Thailand.
| | - Panwad Tongchai
- HPV & EBV and Carcinogenesis Research Group, Khon Kaen University, Khon Kaen, 40002, Thailand.
| | - Chamsai Pientong
- Department of Microbiology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand. ,HPV & EBV and Carcinogenesis Research Group, Khon Kaen University, Khon Kaen, 40002, Thailand. ,For Correspondence:
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Shidham VB. Role of immunocytochemistry in cervical cancer screening. Cytojournal 2022; 19:42. [PMID: 35928527 PMCID: PMC9345115 DOI: 10.25259/cmas_03_17_2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 04/25/2022] [Indexed: 11/04/2022] Open
Abstract
The cervical cancer screening has been based conventionally on cytologic analysis. With advances in understanding the role of human papillomavirus, cotesting has been applied. But most of the patients subjected to colposcopy did not benefit, except in cases with HSIL [high-grade squamous intraepithelial lesion] cytology. Because of this, a step to increase the sensitivity to detect cancers and pre-cancers but with higher specificity with minimal overdiagnosis leading to prevention of unindicated cervical biopsies is highly desired. Such triaging step in cases with abnormal screening results is expected to minimize invasive interventions because of low false positivity. With availability of methodologies leading to quantitatively and qualitatively enhanced cell-blocks from residual liquid based cytology specimens, immunostaining can be performed for multiple immunomarkers with potential objectivity to triage initial screening test results. This is enhanced further with inclusion of AV marker in the cell-blocks and application of SCIP (subtractive coordinate immunoreactivity pattern) approach. The cell-blocks are also resource for performing other ancillary studies including molecular pathology and proteomics/metabolomics as potential tests in future. This review explores application of residual liquid based cytology specimen for cell-blocking with application of ancillary studies in algorithmic manner as adjunct to ASCCP management guidelines for improved patient care.
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Karunakaran V, Saritha VN, Ramya AN, Murali VP, Raghu KG, Sujathan K, Maiti KK. Elucidating Raman Image-Guided Differential Recognition of Clinically Confirmed Grades of Cervical Exfoliated Cells by Dual Biomarker-Appended SERS-Tag. Anal Chem 2021; 93:11140-11150. [PMID: 34348462 DOI: 10.1021/acs.analchem.1c01607] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Ultrasensitive detection of cancer biomarkers via single-cell analysis through Raman imaging is an impending approach that modulates the possibility of early diagnosis. Cervical cancer is one such type that can be monitored for a sufficiently long period toward invasive cancer phenotype. Herein, we report a surface-enhanced Raman scattering (SERS) nanotag (SERS-tag) for the simultaneous detection of p16/K-i67, a dual biomarker persisting in the progression of squamous cell carcinoma of human cervix. A nanoflower-shaped SERS-tag, constituted of hybrid gold nanostar with silver tips to achieve maximum fingerprint enhancement from the incorporated reporter molecule, was further functionalized with the cocktail monoclonal antibodies against p16/K-i67. The recognition by the SERS-tag was first validated in cervical squamous cell carcinoma cell line SiHa as a foot-step study and subsequently implemented to different grades of clinically confirmed exfoliated cells including normal cell (NC), high-grade intra-epithelial lesion (HC), and squamous cell carcinoma (CC) samples of the cervix. Precise Raman mapped images were constituted based on the average intensity gradient of the signature Raman peaks arising from different grades of exfoliated cells. We observed a distinct intensity hike of around 10-fold in the single dysplastic HC and CC samples in comparison to NC specimen, which clearly justify the prevalence of p16/Ki-67. The synthesized probe is able to map the abnormal cells within 20 min with high reproducibility and stability for 1 mm × 1 mm mapping area with good contrast. Amidst the challenges in Raman image-guided modality, the technique was further complemented with the gold standard immunocytochemistry (ICC) dual staining analysis. Even though both are time-consuming techniques, tedious steps can be avoided and real-time readout can be achieved using the SERS mapping unlike immunocytochemistry technique. Therefore, the newly developed Raman image-guided SERS imaging emphasizes the approach of uplifting of SERS in practical utility with further improvement for clinical applications for cervical cancer detection in future.
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Affiliation(s)
- Varsha Karunakaran
- CSIR-National Institute for Interdisciplinary Science & Technology (NIIST), Chemical Sciences & Technology Division (CSTD), Organic Chemistry Section, Thiruvananthapuram 695019, Kerala, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Valliamma N Saritha
- Regional Cancer Centre (RCC), Division of Cancer Research, Thiruvananthapuram 695011, Kerala, India
| | - Adukkadan N Ramya
- CSIR-National Institute for Interdisciplinary Science & Technology (NIIST), Chemical Sciences & Technology Division (CSTD), Organic Chemistry Section, Thiruvananthapuram 695019, Kerala, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Vishnu Priya Murali
- CSIR-National Institute for Interdisciplinary Science & Technology (NIIST), Chemical Sciences & Technology Division (CSTD), Organic Chemistry Section, Thiruvananthapuram 695019, Kerala, India
| | - Kozhiparambil G Raghu
- CSIR-National Institute for Interdisciplinary Science & Technology (NIIST), Agro-Processing and Technology Division (APTD), Thiruvananthapuram 695019, Kerala, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Kunjuraman Sujathan
- Regional Cancer Centre (RCC), Division of Cancer Research, Thiruvananthapuram 695011, Kerala, India
| | - Kaustabh Kumar Maiti
- CSIR-National Institute for Interdisciplinary Science & Technology (NIIST), Chemical Sciences & Technology Division (CSTD), Organic Chemistry Section, Thiruvananthapuram 695019, Kerala, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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Abreu ÂL, Silva RA, Fernandes S. Validation of CINtec® PLUS Cytology Kit in the Diagnosis of Persistent HPV Infections - Cohort Study in the Portuguese Population. J Cytol 2021; 38:94-100. [PMID: 34321776 PMCID: PMC8280859 DOI: 10.4103/joc.joc_173_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 03/15/2021] [Accepted: 04/14/2021] [Indexed: 11/04/2022] Open
Abstract
Context The use of the CINtec® PLUS Cytology Kit as a complementary method of diagnosis is intended to contribute to a risk assessment of CIN II+ cervical lesions development, thus avoiding unnecessary colposcopy in negative cases. This method has proved to be effective in the follow-up of cervical lesions, although there is need for consistency in the approach of equivocal or negative cytological results, with persistent positive High-Risk Human Papillomavirus (HR-HPV) test. Aims The present study intends to retrospectively evaluate the capacity of the CINtec® to add information to the clinical practice within the screening and follow-up of cervical lesions. Additionally, this study intends to define criteria for CINtec® referral in order to maximize its utilization in the Portuguese context. Materials and Methods For this purpose, 225 cases with CINtec® PLUS Cytology Kit and histology results were used, and data were analysed and compared according to the cytology and HR-HPV molecular test results. Results The data of this study show that CINtec® PLUS Cytology Kit is a valid test for the diagnosis of persistent HPV lesions (p = 0.0005), with excellent sensitivity and reliable values of specificity. Relevant patient groups to apply the kit are in agreement with the manufacturer recommendations: women with ASC-US/LSIL result and NILM cytology with HPV-positive test, essentially over 30 years old. Conclusions Although clinical data and previous cytological information must help guiding, authors considered that CINtec® is a really valid test for the prognosis of persistent HPV infections in the female population.
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Affiliation(s)
- Ângela L Abreu
- Department of Pathological, Cytological and Thanatological Anatomy, School of Health of the Polytechnic Institute of Porto, Porto, Portugal
| | - Regina A Silva
- Department of Pathological, Cytological and Thanatological Anatomy, School of Health of the Polytechnic Institute of Porto, Porto, Portugal.,Research Centre in Health and Environment/ Centro de Investigação em Saúde e Ambiente (CISA), Porto, Portugal
| | - Sílvia Fernandes
- Department of Pathological, Cytological and Thanatological Anatomy, School of Health of the Polytechnic Institute of Porto, Porto, Portugal.,Research Centre in Health and Environment/ Centro de Investigação em Saúde e Ambiente (CISA), Porto, Portugal
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