Early detection of cervical cancer based on high‐risk HPV DNA‐based genosensors: A systematic review

BioFactors ◽  
2018 ◽  
Vol 45 (2) ◽  
pp. 101-117 ◽  
Author(s):  
Pegah Mahmoodi ◽  
Mona Fani ◽  
Majid Rezayi ◽  
Amir Avan ◽  
Zahra Pasdar ◽  
...  
Cells ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 714
Author(s):  
Matthias Läsche ◽  
Horst Urban ◽  
Julia Gallwas ◽  
Carsten Gründker

Cervical cancer is responsible for around 5% of all human cancers worldwide. It develops almost exclusively from an unsolved, persistent infection of the squamocolumnar transformation zone between the endo- and ecto-cervix with various high-risk (HR) human papillomaviruses (HPVs). The decisive turning point on the way to persistent HPV infection and malignant transformation is an immune system weakened by pathobionts and oxidative stress and an injury to the cervical mucosa, often caused by sexual activities. Through these injury and healing processes, HPV viruses, hijacking activated keratinocytes, move into the basal layers of the cervical epithelium and then continue their development towards the distal prickle cell layer (Stratum spinosum). The microbial microenvironment of the cervical tissue determines the tissue homeostasis and the integrity of the protective mucous layer through the maintenance of a healthy immune and metabolic signalling. Pathological microorganisms and the resulting dysbiosis disturb this signalling. Thus, pathological inflammatory reactions occur, which manifest the HPV infection. About 90% of all women contract an HPV infection in the course of their lives. In about 10% of cases, the virus persists and cervical intra-epithelial neoplasia (CIN) develops. Approximately 1% of women with a high-risk HPV infection incur a cervical carcinoma after 10 to 20 years. In this non-systematic review article, we summarise how the sexually and microbial mediated pathogenesis of the cervix proceeds through aberrant immune and metabolism signalling via CIN to cervical carcinoma. We show how both the virus and the cancer benefit from the same changes in the immune and metabolic environment.


2021 ◽  
pp. 985-991
Author(s):  
Johnson J. Katanga ◽  
Vibeke Rasch ◽  
Rachel Manongi ◽  
Andrea B. Pembe ◽  
Julius D. Mwaiselage ◽  
...  

PURPOSE Cervical cancer screening is one of the strategies to prevent the disease among women at risk. Human papillomavirus (HPV) DNA testing is increasingly used as the cervical cancer screening method because of its high sensitivity. Self-collection of cervical specimens has the potential to improve participation. However, there is only limited information on comparison between self-collected and provider-collected samples with regard to detection of high-risk HPV using the careHPV method. The study aimed to compare HPV detection by careHPV in self-collected and provider-collected cervical samples and to assess the acceptability of self-collection techniques. MATERIAL AND METHODS Women attending cervical cancer screening clinics at Ocean Road Cancer Institute, Kilimanjaro Christian Medical Centre or Mawenzi Hospital in Tanzania were included in the study. They underwent a face-to-face interview, HIV testing, and collected a self-sample using Evalyn Brush. Subsequently, they had a cervical sample taken by a health provider. Both samples were tested for high-risk HPV DNA using careHPV. RESULTS Overall, 464 women participated in the study. The high-risk HPV prevalence was 19.0% (95% CI, 15.6 to 22.9) in the health provider samples, but lower (13.8%; 95% CI, 10.9 to 17.3) in the self-collected samples. There was a good overall agreement 90.5% (95% CI, 87.5 to 93.0) and concordance (κ = 0.66; 95% CI, 0.56 to 0.75) between the two sets of samples. Sensitivity and specificity were 61.4% (95% CI, 50.4 to 71.6) and 97.3% (95% CI, 95.2 to 98.7), respectively, varying with age. Most women preferred self-collection (79.8%). CONCLUSION Overall, self-sampling seems to be a reliable alternative to health-provider collection and is acceptable to the majority of women. However, instructions on proper procedures for sample collection to the women are important.


2021 ◽  
Vol 3 (1) ◽  
pp. 47
Author(s):  
Elsani P. L. Rapar ◽  
Maria K. Sambuaga ◽  
Meilany F. Durry

Abstract: The incidence and mortality rates of cervical cancer in developing countries are relatively high compared to developed countries. The main risk factor for cervical cancer is high risk human papilloma virus (HPV) infection, such as types 16 and 18. Types of high-risk HPV expresses oncoproteins E6 and E7 which play an essential role in the pathogenesis of cervical carcinoma through inhibition of the activity of gene group expression products that play a role in suppressing tumor growth, such as p53 and pRB. This process will cause morphological changes in the squamous epithelium from precancerous lesions to cancer. The development of squamous epithelial cell cancer can be prevented through screening tests in order to detect cervical cancer early. This study was aimed to obtain the oncogenesis, morphology, and early detection modality of cervical carcinoma. This was a literature review study using three databases, as follows: ClinicalKey, PubMed, and Google Scholar. The results explained that p53 and pRB suppression by high-risk HPV oncoproteins E6 and E7 played an important role in the pathogenesis of cervical carcinoma. The most common histological type is squamous cell carcinoma. Screening tests such as visual inspection with acetic acid (VIA), Pap smears and HPV DNA have an important role as modalities for early detection of malignancy. More specifically VIA and Pap smears are suitable for Indonesia which is a developing country, especially when implemented in peripheral areas.Keywords: oncogenesis; morphological changes; early detection; cervical carcinoma  Abstrak: Insidens dan mortalitas kanker serviks di negara berkembang relatif tinggi dibandingkan negara maju. Faktor risiko utama dari kanker serviks adalah infeksi human papilloma virus (HPV) risiko tinggi yaitu tipe 16 dan 18. HPV tipe risiko tinggi mengekspresikan onkoprotein E6 dan E7, yang berperan penting dalam patogenesis karsinoma serviks melalui inhibisi terhadap aktivitas produk-produk ekspresi kelompok gen yang berperan dalam menekan pertumbuhan tumor, seperti p53 dan pRB. Proses ini akan menyebabkan perubahan morfologik pada epitel skuamosa mulai dari lesi prakanker sampai kanker. Perkembangan kanker sel epitel skuamosa dapat dicegah melalui pemeriksaan skrining guna mendeteksi dini kanker serviks. Penelitian ini bertujuan untuk mengetahui onkogenesis, morfologi, dan modalitas deteksi dini karsinoma serviks. Jenis penelitian ialah literature review menggunakan tiga basis data yaitu ClinicalKey, PubMed, dan Google Scholar. Hasil penelitian mendapatkan bahwa penekanan p53 dan pRB oleh onkoprotein HPV risiko tinggi E6 dan E7 sangat berperan penting dalam patogenesis karsinoma serviks. Tipe histologik tersering ialah tipe karsinoma sel skuamosa. Pemeriksaan skrining seperti pemeriksaan inspeksi visual dengan asam asetat (IVA), Pap smear dan HPV DNA memiliki peran penting sebagai modalitas deteksi dini keganasan. Lebih khusus IVA dan Pap smear cocok untuk negara Indonesia yang merupakan negara berkembang, terutama bila diimplementasikan di daerah perifer.Kata kunci: onkogenesis; perubahan morfologik; deteksi dini; karsinoma serviks


2015 ◽  
Vol 18 (7) ◽  
pp. A349 ◽  
Author(s):  
A Skroumpelos ◽  
T Agorastos ◽  
K Chatzistamatiou ◽  
T Akalestos ◽  
N Poulios ◽  
...  

Pathology ◽  
2014 ◽  
Vol 46 ◽  
pp. S68
Author(s):  
Sumalee Siriaunkgul ◽  
Jongkolnee Settakorn ◽  
Kornkanok Sukpun ◽  
Jatupol Srisomboon ◽  
Prapaporn Suprasert ◽  
...  

2007 ◽  
Vol 120 (11) ◽  
pp. 2435-2438 ◽  
Author(s):  
Constance Mao ◽  
Akhila Balasubramanian ◽  
Mujun Yu ◽  
Nancy Kiviat ◽  
Ruediger Ridder ◽  
...  

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Yang Liu ◽  
Changjun Xu ◽  
Jing Pan ◽  
Chunyi Sun ◽  
Honglin Zhou ◽  
...  

Abstract Background The significance of HPV viral load in the detection of cervical lesions is still controversial. This study analyzed the correlation between the high-risk HPV viral load and different cervical lesion degrees. Methods This retrospective study included women positive for high-risk HPV DNA and screened for cervical lesions between 01/2015 and 06/2018. The high-risk HPV DNA load was measured by the second-generation Hybrid Capture technology and classified as low, moderate, and high. Colposcopy and biopsy were performed in all patients. The patients were grouped as normal, cervical intraepithelial neoplasia (CIN) grade 1, CIN grade 2, CIN grade 3, and cervical cancer. Multivariable logistic regression was performed to explore the association between high-risk HPV DNA load and cervical lesions. The odds ratios (ORs) represent the odds for increasing from low to high viral load. Results Finally, 265 patients were grouped as normal (n = 125), CIN 1 (n = 51), CIN 2 (n = 23), CIN 3 (n = 46), and cervical cancer (n = 20). Among them, 139 (52.5%) had a low viral load, 90 (34.0) had a moderate viral load, and 36 (13.4%) had a high viral load. Taking the normal control group as a reference, a high viral load was an independent factor for CIN 1 (OR = 3.568, 95% CI: 1.164–10.941, P = 0.026), CIN 2 (OR = 6.939, 95% CI: 1.793–26.852, P = 0.005), CIN 3 (OR = 7.052, 95% CI: 2.304–21.586, P = 0.001), and cervical cancer (OR = 8.266, 95% CI: 2.120–32.233, P = 0.002). Conclusions Among women who underwent cervical biopsy, higher high-risk HPV viral load in cervical lesions was associated with a higher risk of high-grade cervical lesions.


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