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Dhesi SS, Frood R, Swift S, Cooper R, Muzumdar S, Jamal M, Scarsbrook A. Prediction of Patient Outcomes in Locally Advanced Cervical Carcinoma Following Chemoradiotherapy-Comparative Effectiveness of Magnetic Resonance Imaging and 2-Deoxy-2-[ 18F]fluoro-D-glucose Imaging. Cancers (Basel) 2024; 16:476. [PMID: 38339229 PMCID: PMC10854890 DOI: 10.3390/cancers16030476] [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: 12/18/2023] [Revised: 01/16/2024] [Accepted: 01/18/2024] [Indexed: 02/12/2024] Open
Abstract
PURPOSE To evaluate the utility and comparative effectiveness of three five-point qualitative scoring systems for assessing response on PET-CT and MRI imaging individually and in combination, following curative-intent chemoradiotherapy (CRT) in locally advanced cervical cancer (LACC). Their performance in the prediction of subsequent patient outcomes was also assessed; Methods: Ninety-seven patients with histologically confirmed LACC treated with CRT using standard institutional protocols at a single centre who underwent PET-CT and MRI at staging and post treatment were identified retrospectively from an institutional database. The post-CRT imaging studies were independently reviewed, and response assessed using five-point scoring tools for T2WI, DWI, and FDG PET-CT. Patient characteristics, staging, treatment, and follow-up details including progression-free survival (PFS) and overall survival (OS) outcomes were collected. To compare diagnostic performance metrics, a two-proportion z-test was employed. A Kaplan-Meier analysis (Mantel-Cox log-rank) was performed. RESULTS The T2WI (p < 0.00001, p < 0.00001) and DWI response scores (p < 0.00001, p = 0.0002) had higher specificity and accuracy than the PET-CT. The T2WI score had the highest positive predictive value (PPV), while the negative predictive value (NPV) was consistent across modalities. The combined MR scores maintained high NPV, PPV, specificity, and sensitivity, and the PET/MR consensus scores showed superior diagnostic accuracy and specificity compared to the PET-CT score alone (p = 0.02926, p = 0.0083). The Kaplan-Meier analysis revealed significant differences in the PFS based on the T2WI (p < 0.001), DWI (p < 0.001), combined MR (p = 0.003), and PET-CT/MR consensus scores (p < 0.001) and in the OS for the T2WI (p < 0.001), DWI (p < 0.001), and combined MR scores (p = 0.031) between responders and non-responders. CONCLUSION Post-CRT response assessment using qualitative MR scoring and/or consensus PET-CT and MRI scoring was a better predictor of outcome compared to PET-CT assessment alone. This requires validation in a larger prospective study but offers the potential to help stratify patient follow-up in the future.
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Affiliation(s)
- Simran Singh Dhesi
- Department of Radiology, Leeds Teaching Hospitals NHS Trust, Leeds LS9 7TF, UK; (S.S.D.); (R.F.); (S.S.); (M.J.)
| | - Russell Frood
- Department of Radiology, Leeds Teaching Hospitals NHS Trust, Leeds LS9 7TF, UK; (S.S.D.); (R.F.); (S.S.); (M.J.)
- Leeds Institute of Health Research, Faculty of Medicine & Health, University of Leeds, Leeds LS9 7TF, UK
| | - Sarah Swift
- Department of Radiology, Leeds Teaching Hospitals NHS Trust, Leeds LS9 7TF, UK; (S.S.D.); (R.F.); (S.S.); (M.J.)
| | - Rachel Cooper
- Department of Clinical Oncology, Leeds Cancer Centre, Leeds LS9 7TF, UK;
| | - Siddhant Muzumdar
- Department of Radiology, Chelsea & Westminster Hospital, 369 Fulham Rd., London SW10 9NH, UK;
| | - Mehvish Jamal
- Department of Radiology, Leeds Teaching Hospitals NHS Trust, Leeds LS9 7TF, UK; (S.S.D.); (R.F.); (S.S.); (M.J.)
| | - Andrew Scarsbrook
- Department of Radiology, Leeds Teaching Hospitals NHS Trust, Leeds LS9 7TF, UK; (S.S.D.); (R.F.); (S.S.); (M.J.)
- Leeds Institute of Health Research, Faculty of Medicine & Health, University of Leeds, Leeds LS9 7TF, UK
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Haran M, Kelly JR, Kennedy L, Hennigan K, Farid H, Herteu C, Kreisel A, Salehin S, O' Sullivan M, Keating S, Ivers JH, Scully M. An audit of the cervical screening programme in the National Drug Treatment Centre (NDTC). Ir J Med Sci 2021; 190:1379-1386. [PMID: 33449334 PMCID: PMC7809234 DOI: 10.1007/s11845-020-02459-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Accepted: 12/03/2020] [Indexed: 12/24/2022]
Abstract
BACKGROUND Women diagnosed with substance use disorders (SUDs) have higher rates of major medical conditions compared to women without SUDs. Cervical cancer is the second leading cause of cancer death in women aged 20-39 years worldwide and women with SUDs have an increased risk of cervical cancer compared to women without SUD. The National Drug Treatment Centre (NDTC) cervical screening programme, derived from the national CervicalCheck programme, offers free cervical screening to patients attending for treatment of SUDs. AIMS This study aimed to audit adherence to the NDTC Cervical Screening guidelines before and after the implementation of an awareness-raising educational intervention. METHODS The electronic clinical records of women aged between 25 and 60 years attending the lead consultant's (M.S.) outpatient clinic were reviewed for documentary evidence indicating that information about the cervical screening programme had been discussed. This was completed before and one month after the implementation of an awareness-raising educational intervention. RESULTS All women (n = 46, mean age 36.3 (SD = 6.5) years) had an opioid use disorder; 85% had a benzodiazepine use disorder, and 24% had an alcohol use disorder. Of these, 80% had at least one chronic medical condition, 76% had a psychiatric disorder, and 59% were homeless. Adherence to the NDTC cervical screening guideline, as indicated by documentary evidence in clinical records, was 33% (14/43) at baseline, and rose to 88% (36/41) (p < 0.0001) one month after the intervention. CONCLUSIONS This completed audit cycle shows that an awareness-raising educational intervention can significantly improve adherence to a cervical screening programme in women with SUDs.
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Affiliation(s)
- Maeve Haran
- Daughters of Charity Disability Services, Navan Road, Dublin 7, Ireland.
| | - John R Kelly
- Trinity Centre for Health Sciences, Tallaght University Hospital, Dublin 24, Ireland
| | - Liam Kennedy
- Psychiatry of Later Life, Sarto House, Sarto Road, Naas, Co. Kildare, Ireland
| | - Kieran Hennigan
- General Adult Psychiatry, University College Hospital Galway, Newcastle Rd, Galway, Ireland
| | - Huma Farid
- General Adult Psychiatry, Belfast City Hospital, 51 Lisburn Road, Belfast, BT9, 7AB 1841, Ireland
| | - Cristina Herteu
- The HSE National Drug Treatment Centre, 30-31 Pearse Street, Dublin 2, Ireland
| | - Anna Kreisel
- Adult Psychiatry Department, Aulingatan 22 C, SE-271 39, Ystad, Sweden
| | - Shamus Salehin
- The HSE National Drug Treatment Centre, 30-31 Pearse Street, Dublin 2, Ireland
| | - Marie O' Sullivan
- The HSE National Drug Treatment Centre, 30-31 Pearse Street, Dublin 2, Ireland
| | - Shay Keating
- The HSE National Drug Treatment Centre, 30-31 Pearse Street, Dublin 2, Ireland
| | - Jo-Hanna Ivers
- Department of Public Health and Primary Care, Institute of Population Health, School of Medicine, Trinity College Dublin, the University of Dublin, Russell Building, Tallaght Cross West, Tallaght, Dublin, D24 DH74, Ireland
| | - Mike Scully
- The HSE National Drug Treatment Centre, 30-31 Pearse Street, Dublin 2, Ireland
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Ding L, Zhao X, Xiong Q, Jiang X, Liu X, Ding K, Zhou P. Cdc25B is transcriptionally inhibited by IER5 through the NF-YB transcription factor in irradiation-treated HeLa cells. Toxicol Res (Camb) 2021; 10:875-884. [PMID: 34484679 DOI: 10.1093/toxres/tfab069] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 05/28/2021] [Accepted: 07/05/2021] [Indexed: 12/09/2022] Open
Abstract
Cervical cancer (CC) is a type of pelvic malignant tumor that severely threatens women's health. Current evidence suggests that IER5, as a potential radiosensitizer, promotes irradiation-induced apoptosis in CC tissues in patients undergoing chemoradiotherapy. IER5 has been shown to be involved in the G2/M-phase transition. In the present study, we used Cdc25B as the breakthrough point to explore the underlying mechanism of IER5 in the cell cycle regulation of radiation-damaged HeLa cells. IER5 was evidently upregulated after irradiation, but Cdc25B was significantly downregulated. In monoclonal IER5-silenced HeLa cells, irradiation-induced downregulation of Cdc25B was attenuated. The effect of irradiation on Cdc25B promoter activity was determined by dual-luciferase reporter assays. The response elements on the Cdc25B promoter related to irradiation were predicted by JASPAR. These conserved sequences were mutated individually or in combination by splicing-by-overlap extension PCR, and their function was confirmed by dual-luciferase reporter assays. The enrichment efficiency of transcription factors after irradiation was determined by chromatin immunoprecipitation (ChIP) assay. Both Sp1/Sp3 and NF-YB binding sites were involved in irradiation-mediated regulation of Cdc25B. IER5 was involved in irradiation-mediated regulation of Cdc25B through the NF-YB binding site. Furthermore, ChIP assays showed that IER5 bound to the Cdc25B promoter, and the binding of IER5 to the Cdc25B promoter region in irradiation-induced HeLa cells induced the release of the coactivator p300 through interaction with NF-YB. Taken together, these findings indicate that IER5 is the transcriptional repressor that accelerates the downregulation of Cdc25B expression after irradiation.
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Affiliation(s)
- Lixin Ding
- National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Xicheng District, Beijing 100088, P. R. China
| | - Xianzhe Zhao
- National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Xicheng District, Beijing 100088, P. R. China
| | - Qiang Xiong
- National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Xicheng District, Beijing 100088, P. R. China
| | - Xiaoyan Jiang
- National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Xicheng District, Beijing 100088, P. R. China
| | - Xiaodan Liu
- Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Haidian District, Beijing 100850, P. R. China
| | - Kuke Ding
- National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Xicheng District, Beijing 100088, P. R. China
| | - Pingkun Zhou
- Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Haidian District, Beijing 100850, P. R. China
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Beyene T, Akibu M, Bekele H, Seyoum W. Risk factors for precancerous cervical lesion among women screened for cervical cancer in south Ethiopia: Unmatched case-control study. PLoS One 2021; 16:e0254663. [PMID: 34265004 PMCID: PMC8282005 DOI: 10.1371/journal.pone.0254663] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Accepted: 06/30/2021] [Indexed: 01/08/2023] Open
Abstract
Background Nearly 90% of deaths from cervical cancer occur in a low resource setting. In Ethiopia, the magnitude of precancerous cervical lesions ranges from 7% to 28%. Precancerous cervical lesions may progress to cervical cancer. Early screening and treatment of precancerous cervical lesions is a cost-effective way to avert the growth of cervical cancer. However, there has been limited research on risk factors for precancerous cervical lesions in Ethiopia. Therefore, this study aimed to identify risk factors for precancerous cervical lesions among women screened for cervical cancer in south Ethiopia. Method A facility-based unmatched case-control study was carried out in five health facilities in south Ethiopia between 8 May to 28 September 2018. Interviewer administered questionnaires were used to collect data from 98 cases and 197 controls. Multivariate logistic regression was employed to identify determinants of precancerous cervical lesions. Results Women aged 30–39 years (AOR = 2.51, 95% CI: 1.03–6.08), monthly income ≤66 (AOR = 3.51, 95% CI: 1.77–6.97), initiation of first sexual intercourse at age less than or equal to 20 (AOR = 2.39, 95% CI: 1.14–5.47), having more than one lifetime sexual partner (AOR = 4.70, 95% CI: 2.02–10.95), having a partner/ husband with more than one lifetime sexual partner (AOR = 2.98, 95% CI: 1.35–6.65) had higher odds of precancerous cervical lesions. Conclusion and recommendation Strategies to prevent precancerous cervical lesions should focus on modification of lifestyle and sexual behaviour. The findings of this study highlight several implications for policymakers: targeting older women for cervical cancer screening, addressing inequalities and education relating to risky sexual behaviour may reduce precancerous cervical lesions. Furthermore, future longitudinal studies are needed to assess the awareness of women about cervical cancer screening.
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Affiliation(s)
- Tesfalidet Beyene
- College of Medical and Health Sciences, Wollega University, Nekemte, Oromia, Ethiopia
- Postdoctoral Research Fellow, University of Newcastle, Callaghan, Australia
- * E-mail: ,
| | - Mohammed Akibu
- Department of Midwifery, Institute of Medicine and Health Sciences, Debre Berhan University, Debre Birhan, Ethiopia
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Gomes FG, Almeida VH, Martins-Cardoso K, Martins-Dinis MMDC, Rondon AMR, Melo ACD, Tilli TM, Monteiro RQ. Epidermal growth factor receptor regulates fibrinolytic pathway elements in cervical cancer: functional and prognostic implications. ACTA ACUST UNITED AC 2021; 54:e10754. [PMID: 33886813 PMCID: PMC8055187 DOI: 10.1590/1414-431x202010754] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 01/04/2021] [Indexed: 12/23/2022]
Abstract
Epidermal growth factor receptor (EGFR) signaling and components of the fibrinolytic system, including urokinase-type plasminogen activator (uPA) and thrombomodulin (TM), have been implicated in tumor progression. In the present study, we employed cBioPortal platform (http://www.cbioportal.org/), cancer cell lines, and an in vivo model of immunocompromised mice to evaluate a possible cooperation between EGFR signaling, uPA, and TM expression/function in the context of cervical cancer. cBioPortal analysis revealed that EGFR, uPA, and TM are positively correlated in tumor samples of cervical cancer patients, showing a negative prognostic impact. Aggressive human cervical cancer cells (CASKI) presented higher gene expression levels of EGFR, uPA, and TM compared to its less aggressive counterpart (C-33A cells). EGFR induces uPA expression in CASKI cells through both PI3K-Akt and MEK1/2-ERK1/2 downstream effectors, whereas TM expression induced by EGFR was dependent on PI3K/Akt signaling alone. uPA induced cell-morphology modifications and cell migration in an EGFR-dependent and -independent manner, respectively. Finally, treatment with cetuximab reduced in vivo CASKI xenografted-tumor growth in nude mice, and decreased intratumoral uPA expression, while TM expression was unaltered. In conclusion, we showed that EGFR signaling regulated expression of the fibrinolytic system component uPA in both in vitro and in vivo settings, while uPA also participated in cell-morphology modifications and migration in a human cervical cancer model.
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Affiliation(s)
- F G Gomes
- Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brasil
| | - V H Almeida
- Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brasil
| | - K Martins-Cardoso
- Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brasil
| | - M M D C Martins-Dinis
- Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brasil.,Instituto Nacional de Ciência e Tecnologia de Biologia Estrutural e Bioimagem, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brasil
| | - A M R Rondon
- Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brasil
| | - A C de Melo
- Clinical Research Division, Instituto Nacional de Câncer, Rio de Janeiro, RJ, Brasil
| | - T M Tilli
- Plataforma de Oncologia Translacional, Centro de Desenvolvimento Tecnológico em Saúde, Fundação Oswaldo Cruz, Rio de Janeiro, RJ, Brasil
| | - R Q Monteiro
- Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brasil
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From squamous intraepithelial lesions to cervical cancer: Circulating microRNAs as potential biomarkers in cervical carcinogenesis. Biochim Biophys Acta Rev Cancer 2019; 1872:188306. [DOI: 10.1016/j.bbcan.2019.08.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Accepted: 08/01/2019] [Indexed: 02/06/2023]
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7
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Wang C, Davis JS. At the center of cervical carcinogenesis: synergism between high-risk HPV and the hyperactivated YAP1. Mol Cell Oncol 2019; 6:e1612677. [PMID: 31528691 PMCID: PMC6736164 DOI: 10.1080/23723556.2019.1612677] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Human papillomavirus (HPV) is recognized as a necessary, but insufficient cause of cervical cancer. Recent in vitro and in vivo evidence from our laboratory demonstrate that hyperactivation of yes-associated protein 1 (YAP1) is sufficient to induce cervical carcinogenesis. We found that synergism between hyperactivated YAP1 and high-risk HPV is a key driver of cervical cancer initiation and progression.
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Affiliation(s)
- Cheng Wang
- Department of Obstetrics and Gynecology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, 02114, USA
| | - John S Davis
- Department of Obstetrics and Gynecology, University of Nebraska Medical Center, and VA Medical Center, Omaha, NE, 68198, USA
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Lekoane KMB, Kuupiel D, Mashamba-Thompson TP, Ginindza TG. Evidence on the prevalence, incidence, mortality and trends of human papilloma virus-associated cancers in sub-Saharan Africa: systematic scoping review. BMC Cancer 2019; 19:563. [PMID: 31185951 PMCID: PMC6558783 DOI: 10.1186/s12885-019-5781-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Accepted: 05/31/2019] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Human papilloma virus (HPV) associated cervical cancer remains a global concern particular, in Sub-Saharan Africa (SSA) where the impact is felt most. Evidence show that many other cancers such as vaginal, anal, oropharyngeal, penile are because of persistent infection with HPV especially, high-risk types. AIM We mapped evidence on the incidence, prevalence, mortality, and the trends of human papillomavirus-related cancers in SSA. METHODS A comprehensive literature search was conducted from several databases including PubMed, Google scholar, Science Direct, and CINAHL and MEDLINE via EBSCOhost as well as World Health Organization website for grey literature. Studies reporting HPV-related cancers in SSA outcomes including prevalence, incidence, mortality, and trends were included in this study. The risk of bias of the included studies were assessed using the mixed methods appraisal tool version 2011. We employed PRISMA (preferred reporting items for systematic reviews and meta-analyses) to report the search results. Thematic analysis used to reveal the emerging themes from the included studies. RESULTS Seventy-four (74) studies were retrieved at full article screening, eight of them (six reviews, and two quantitative study) were eligible for data extraction. The degree of agreement between the two independent reviewers following full article screening, was 86.49% agreement versus 64.57% likely by chance which constituted moderate to significant agreement (Kappa statistic = 0.62, p-value< 0.05). Of the eight included studies, four (50%) studies generalized about SSA with no country of interest; two (25%) studies were conducted in Nigeria; one (12.5%) reported about Uganda, Zambia, Guinea, Malawi Tanzania, Mali, Mozambique, Zimbabwe; and one (12.5%) reported about Ethiopia, Senegal, Zimbabwe and Uganda. These eight included studies reported evidence on more than one outcome of interest. Four studies reported about the prevalence of HPV-related cancers, seven studies reported about the incidence, four studies reported about mortality, and four studies reported about the trends of HPV-related cancers. CONCLUSION This study observation highlighted a gap of knowledge regarding the epidemiological data on the recent HPV prevalence in SSA, which will have a potential impact in determining the distribution of HPV on different body sites (cervix, penis, vagina, vulva, anus and oropharynx). Ongoing research projects are recommended in SSA to enhance the value of HPV, and HPV-associated cancers epidemiological data to inform strategies or/and policies on prevention, diagnosis, and treatment of HPV-related conditions.
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Affiliation(s)
- Kabelo M. B. Lekoane
- Discipline of Public Health Medicine, School of Nursing and Public Health, University of KwaZulu-Natal, 2nd Floor George Campbell Building, Howard College Campus, Durban, 4001 South Africa
| | - Desmond Kuupiel
- Discipline of Public Health Medicine, School of Nursing and Public Health, University of KwaZulu-Natal, 2nd Floor George Campbell Building, Howard College Campus, Durban, 4001 South Africa
- Research for Sustainable Development, Sunyani, Ghana
| | - Tivani P. Mashamba-Thompson
- Discipline of Public Health Medicine, School of Nursing and Public Health, University of KwaZulu-Natal, 2nd Floor George Campbell Building, Howard College Campus, Durban, 4001 South Africa
| | - Themba G. Ginindza
- Discipline of Public Health Medicine, School of Nursing and Public Health, University of KwaZulu-Natal, 2nd Floor George Campbell Building, Howard College Campus, Durban, 4001 South Africa
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Xu Y, Zhou W, Zhang C, Liu X, Lv J, Li X, Zhao L, Li W, Li J, Ren Y, Ou R. Long non-coding RNA RP11-552M11.4 favors tumorigenesis and development of cervical cancer via modulating miR-3941/ATF1 signaling. Int J Biol Macromol 2019; 130:24-33. [DOI: 10.1016/j.ijbiomac.2019.02.083] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 01/31/2019] [Accepted: 02/14/2019] [Indexed: 12/12/2022]
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Sodium-coupled monocarboxylate transporter is a target of epigenetic repression in cervical cancer. Int J Oncol 2019; 54:1613-1624. [PMID: 30896789 PMCID: PMC6438420 DOI: 10.3892/ijo.2019.4749] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Accepted: 02/11/2019] [Indexed: 12/30/2022] Open
Abstract
The SLC5A8 gene encodes Na monocarboxylate transporter 1, which is epigenetically inactivated in various tumour types. This has been attributed to the fact that it prevents the entry of histone deacetylase (HDAC) inhibitors and favours the metabolic reprogramming of neoplastic cells. Nevertheless, its expression and regulation in cervical cancer (CC) have not been elucidated to date. The aim of the present study was to investigate whether SLC5A8 expression is silenced in CC and if epigenetic mechanisms are involved in its regulation. Using RNA and DNA from human CC cell lines and tumour tissues from patients with CC, the expression of SLC5A8 was analysed by reverse transcription polymerase chain reaction and the methylation status of its CpG island (CGI) by bisulphite‑modified sequencing. Additionally, SLC5A8 reactivation was examined in the CC cell lines following treatment with DNA methylation (5‑aza‑2'‑deoxycytidine) and HDAC inhibitors (trichostatin A and pyruvate). All the CC cell lines and a range of tumour tissues (65.5%) exhibited complete or partial loss of SLC5A8 transcription. The bisulphite‑sequencing revealed that hypermethylation of the CGI within SLC5A8 first exon was associated with its downregulation in the majority of cases. The transporter expression was restored in the CC cell lines following exposure to 5‑aza‑2'‑deoxycytidine alone, or in combination with trichostatin A or pyruvate, suggesting that DNA methylation and histone deacetylation contribute to its inhibition in a cell line‑dependent manner. Together, the results of the present study demonstrate the key role of DNA hypermethylation in the repression of SLC5A8 in CC, as well as the involvement of histone deacetylation, at least partially. This allows for research focused on the potential function of SLC5A8 as a tumour suppressor in CC, and as a biomarker or therapeutic target in this malignancy.
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Prevalence and distribution of Human Papillomavirus (HPV) genotypes among HIV infected women in Lomé, Togo. PLoS One 2019; 14:e0212516. [PMID: 30811454 PMCID: PMC6392291 DOI: 10.1371/journal.pone.0212516] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Accepted: 02/04/2019] [Indexed: 01/06/2023] Open
Abstract
Human papillomavirus (HPV) infection is the most common sexually transmitted disease worldwide, and it particularly affects people living with human immunodeficiency virus (HIV). This study aimed to estimate the prevalence of HPV and to describe HPV genotypes in HIV-1 infected women in Lomé, Togo. From September 2014 to September 2015, a cross-sectional study was conducted in two treatment and care centers for people living with HIV: the Centre Hospitalier Universitaire Sylvanus Olympio and the non-profit organization ‘Espoir Vie Togo’. Women living with HIV-1, aged 18 years and older, receiving a combination antiretroviral therapy for at least 12 months, and who gave their informed consent to participate in the study were recruited. Cervical swabs were collected using a cytobrush, and cells were stored in a preservative solution. HPV testing was performed using e-BRID equipment. Blood samples were collected for CD4+ count using a flow cytometer and for HIV viral load using polymerase chain reaction. A total of 221 HIV-1 infected women were enrolled. The prevalence of any type and oncogenic HPV was 22.2%, 95% confidence interval (95% CI): [17.1–28.2] and 16.7% (95%CI: 12.3–22.3), respectively. The most prevalent genotypes were: 18 (8.6%), 68 (4.1%), and 62/81 (2.7%). Only 1.3% (3/221) of participants were infected with HPV16. In regression analysis, no factor was associated with HRHPV.
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A novel arylbenzofuran induces cervical cancer cell apoptosis and G1/S arrest through ERK-mediated Cdk2/cyclin-A signaling pathway. Oncotarget 2018; 7:41843-41856. [PMID: 27259234 PMCID: PMC5173100 DOI: 10.18632/oncotarget.9731] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Accepted: 05/12/2016] [Indexed: 01/03/2023] Open
Abstract
7-hydroxy-5,4'-dimethoxy-2-arylbenzofuran (Ary) is purified from Livistona. It has been demonstrated to have anticancer activity to various tumors in including cervical cancer, but its mechanism is still unclear. In the present, we show that Ary induces cervical cancer cells apoptosis through mitochondria degradation and mediates cervical cancer cell arrest. Further, Ary-inducing cell cycle G1/S-phase arrest is associated with increased cyclin A2 and cyclin dependent kinase 2 (Cdk2) proteins. Knockdown of cyclin A2 using small interfering RNA (siRNA), and inhibiting Cdk2 activity with flavopiridol, strikingly reduced G1/S-phase arrest. Moreover, Ary sustainedly induced phosphorylation of extracellular signal-regulated kinase1/2 (ERK1/2). And ERK1/2 phosphorylation inhibition using specific inhibitor U0126 effectively suppressed cyclin A2 expression, and reduced G1/S-phase arrest induced by Ary. All the experiments in vitro and in vivo verified that Ary has an anticancer effect on cervical cancer. These data provide novel evidences that Ary induces cervical cancer cells apoptosis through mitochondria degradation and cell G1/S-phase arrest. These findings also suggest that ERK-mediated Cdk2/cyclin A signaling pathway is involved in Ary-induced G1/S-phase arrest.
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Mboumba Bouassa RS, Prazuck T, Lethu T, Jenabian MA, Meye JF, Bélec L. Cervical cancer in sub-Saharan Africa: a preventable noncommunicable disease. Expert Rev Anti Infect Ther 2017; 15:613-627. [PMID: 28440679 DOI: 10.1080/14787210.2017.1322902] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
INTRODUCTION Infections caused by high-risk human papillomavirus (HPV) are responsible for 7.7% of cancers in developing countries, mainly cervical cancer. This disease is steadily increasing in sub-Saharan Africa, with more than 75,000 new cases and 50,000 deaths yearly, further increased by HIV infection. Areas covered: The current status of cervical cancer associated with HPV in sub-Saharan Africa has been systematically revised. The main issues discussed here are related to the public health burden of cervical cancer in sub-Saharan Africa and predictions for the coming decades, including molecular epidemiology and determinants of HPV infection in Africa, and promising prevention measures currently being evaluated in Africa. Expert commentary: By the year 2030, cervical cancer will kill more than 443,000 women yearly worldwide, most of them in sub-Saharan Africa. The increase in the incidence of cervical cancer in Africa could counteract the progress made by African women in reducing maternal mortality and longevity. Nevertheless, cervical cancer is a potentially preventable noncommunicable disease, and intervention strategies to eliminate cervical cancer as a public health concern should be urgently implemented.
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Affiliation(s)
- Ralph-Sydney Mboumba Bouassa
- a Laboratoire de virologie, hôpital Européen Georges Pompidou , Assistance Publique-Hôpitaux de Paris , France.,b Department of Immunology, INSERM U970 , Université Paris Descartes, Sorbonne Paris-Cité , Paris , France
| | - Thierry Prazuck
- c Service des Maladies Infectieuses et Tropicales , Centre Hospitalier Régional Orléans La Source , Orléans , France
| | - Thérèse Lethu
- d Department of health and well-being , Global Health Objectives , Geneva , Switzerland
| | - Mohammad-Ali Jenabian
- e Departement des Sciences Biologiques et Centre de recherche BioMed , Universite du Quebec a Montreal (UQAM) , Montreal , QC , Canada
| | - Jean-François Meye
- f Service de Gynécologie Obstétrique, Centre Hospitalo-Universitaire d'Angondjé, Libreville et Faculté de Médecine de Libreville , Université des Sciences de la Santé , Libreville , Gabon
| | - Laurent Bélec
- a Laboratoire de virologie, hôpital Européen Georges Pompidou , Assistance Publique-Hôpitaux de Paris , France.,b Department of Immunology, INSERM U970 , Université Paris Descartes, Sorbonne Paris-Cité , Paris , France
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Tomoaia G, Horovitz O, Mocanu A, Nita A, Avram A, Racz CP, Soritau O, Cenariu M, Tomoaia-Cotisel M. Effects of doxorubicin mediated by gold nanoparticles and resveratrol in two human cervical tumor cell lines. Colloids Surf B Biointerfaces 2015; 135:726-734. [PMID: 26340362 DOI: 10.1016/j.colsurfb.2015.08.036] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2015] [Revised: 07/16/2015] [Accepted: 08/20/2015] [Indexed: 11/16/2022]
Abstract
Green synthesis of gold nanoparticles capped with resveratrol (GNPs) and their physical and chemical characterization by UV-vis spectra, FTIR, DLS, XRD, TEM and AFM are reported. The GNPs are highly stable, with average diameter of about 20 nm. Then, supramolecular nanoassemblies of GNPs and doxorubicin (Dox), Dox-GNPs complexes, were prepared and morphologically characterized. The stability of these Dox nanocomplexes is high in phosphate buffer saline as estimated by UV-vis spectra, TEM and AFM analysis. Effects of resveratrol (Resv), Resv-Dox mixtures, GNPs and Dox-GNPs complexes on HeLa and CaSki cells, after 24h drug incubation, were assessed using MTT cell viability assay. Results showed strong anticancer activity for Resv-Dox mixtures and Dox-GNPs complexes in the two human cervical carcinoma cell lines. Clearly, both Resv and GNPs can mediate the anticancer activity of Dox at its very low concentration of 0.1 μg/mL, reaching the cytotoxicity of Dox alone, at its concentration up to 20 times higher. Cytotoxic effects of Resv-Dox mixtures and Dox-GNPs complexes have been found for the first time in HeLa and CaSki cells. Furthermore, the apoptosis induction in HeLa and CaSki cells was evidenced for Resv-Dox mixtures and Dox-GNPs complexes by flow cytometry using Annexin V-FITC/propidium iodide cellular staining. For CaSki cells, the apoptosis was also demonstrated, mainly for the treatment with Dox-GNPs complexes, by MTT formazan cellular staining visualized in phase contrast microscopy. Our results provide strong evidence that novel drug delivery vehicles developed on Dox-GNPs nanocomplexes and Resv could have wide applications in cancer diagnosis and treatment.
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Affiliation(s)
- Gheorghe Tomoaia
- Iuliu Hatieganu University of Medicine and Pharmacy, Orthopedics and Traumatology Department, 47 Traian Mosoiu Str., 400132 Cluj-Napoca, Romania
| | - Ossi Horovitz
- Babes-Bolyai University of Cluj-Napoca, Chemical Engineering Department, 11 Arany J. Str., 400028 Cluj-Napoca, Romania
| | - Aurora Mocanu
- Babes-Bolyai University of Cluj-Napoca, Chemical Engineering Department, 11 Arany J. Str., 400028 Cluj-Napoca, Romania
| | - Andreea Nita
- Babes-Bolyai University of Cluj-Napoca, Chemical Engineering Department, 11 Arany J. Str., 400028 Cluj-Napoca, Romania
| | - Alexandra Avram
- Babes-Bolyai University of Cluj-Napoca, Chemical Engineering Department, 11 Arany J. Str., 400028 Cluj-Napoca, Romania
| | - Csaba Pal Racz
- Babes-Bolyai University of Cluj-Napoca, Chemical Engineering Department, 11 Arany J. Str., 400028 Cluj-Napoca, Romania
| | - Olga Soritau
- Ion Chiricuta Oncologic Institute of Cluj-Napoca, Cancer Cells Investigation Section, 34-36 Republicii Str., 400015 Cluj-Napoca, Romania
| | - Mihai Cenariu
- University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, Department of Veterinary Reproduction, Obstetrics and Gynecology, 3-5Calea Manastur, 400372 Cluj-Napoca, Romania
| | - Maria Tomoaia-Cotisel
- Babes-Bolyai University of Cluj-Napoca, Chemical Engineering Department, 11 Arany J. Str., 400028 Cluj-Napoca, Romania.
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Amorim VMSL, Barros MBDA. Equity of access to Pap smears: population-based study in Campinas, São Paulo, Brazil. REVISTA BRASILEIRA DE EPIDEMIOLOGIA 2014; 17 Suppl 2:136-49. [PMID: 25409644 DOI: 10.1590/1809-4503201400060012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2012] [Accepted: 06/12/2013] [Indexed: 11/22/2022] Open
Abstract
OBJECTIVE To determine the prevalence of the Papanicolaou exam among women aged 20 to 59 years in the city of Campinas (state of São Paulo, Brazil) and to analyze associations between this test and affiliation to private health insurance plans as well as socioeconomic/demographic variables and health-related behavior. METHOD To do so, a population-based, cross-sectional study was carried out. Statistical analyses took the study design into account. RESULTS Despite the significant socioeconomic differences between women with and without private health plans, no differences between these groups were found regarding having been submitted to the Papanicolaou test. In fact no differences were found as to socioeconomic and health variables analyzed. Among all variables analyzed, only marital status was significantly associated with having undergone the test. The Brazilian public health system accounted for 55.7% of the exams. CONCLUSION The present findings indicate social equity in the city of Campinas regarding the preventive exam for cervical cancer in the age group studied.
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Hubert P, Herman L, Roncarati P, Maillard C, Renoux V, Demoulin S, Erpicum C, Foidart JM, Boniver J, Noël A, Delvenne P, Herfs M. Altered α-defensin 5 expression in cervical squamocolumnar junction: implication in the formation of a viral/tumour-permissive microenvironment. J Pathol 2014; 234:464-77. [PMID: 25196670 DOI: 10.1002/path.4435] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2014] [Revised: 08/10/2014] [Accepted: 09/02/2014] [Indexed: 11/07/2022]
Abstract
Human papillomavirus (HPV) infection, particularly type 16, is causally associated with cancer of the uterine cervix, which mainly develops at the squamocolumnar (SC) junction. The progression of cervical HPV infections into (pre)neoplastic lesions suggests that viral antigens are not adequately recognized by innate immunity or presented to the adaptive immune system. Members of the defensin family have recently been found to inhibit viral and bacterial pathogens, to stimulate the migration of immune cells and to play a role in anticancer responses. In the present study, we focused on the poorly characterized human α-defensin 5 (HD-5) and its possible role in these processes. We showed that HD-5 was able to prevent HPV virion entry into cervical keratinocytes and to influence adaptive immunity. Indeed, this peptide specifically induced the chemoattraction and proliferation of both activated T lymphocytes and immature dendritic cells in a CCR2/CCR6-dependent manner and stimulated the infiltration of these professional antigen-presenting cells in a (pre)neoplastic epithelium transplanted in vivo in immunodeficient mice. No chemotactic effect was observed with plasmacytoid dendritic cells, macrophages or natural killer cells. Proliferative and angiogenic effects of HD-5 were also assessed in vitro and in vivo. However there was a striking regional disparity in expression of HD-5, being prominent in ectocervical, vaginal and vulvar neoplasia, while absent, or nearly so, in the cervical SC junction. Taken together, these results suggest one possible explanation for why the SC junction is uniquely vulnerable to both high-risk HPV infection (via reduced HD-5 expression and viral entry) and progression of neoplasia (via altered cell-mediated immune responses and altered microenvironment).
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Affiliation(s)
- Pascale Hubert
- Laboratory of Experimental Pathology, GIGA-Cancer, University of Liege, Belgium
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Schmidt MA, Gold R, Kurosky SK, Daley MF, Irving SA, Gee J, Naleway AL. Uptake, coverage, and completion of quadrivalent human papillomavirus vaccine in the vaccine safety Datalink, July 2006-June 2011. J Adolesc Health 2013; 53:637-41. [PMID: 24138765 PMCID: PMC6708557 DOI: 10.1016/j.jadohealth.2013.08.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2013] [Revised: 08/01/2013] [Accepted: 08/01/2013] [Indexed: 11/17/2022]
Abstract
PURPOSE The Advisory Committee on Immunization Practices recommended quadrivalent human papillomavirus vaccine (HPV4) for use in females in June 2006 and in males in October 2009. The objective of our study was to describe HPV4 uptake, single-dose coverage, and completion of the three-dose series among those 9-26 years of age, after the respective female and male vaccine licensures through June 2011. METHODS The study population included members of eight managed care organizations participating in the Vaccine Safety Datalink; we abstracted demographic and comprehensive vaccine information from electronic health records. RESULTS We found one-dose coverage increasing throughout the study period, to a high of 37.7% among females and 1.3% among males in June 2011. Among those receiving at least one HPV4 dose, three-dose series completion was 42% for females and 30.2% for males. CONCLUSIONS Our results demonstrate low initiation and completion of the HPV4 series among those recommended to receive the vaccine. Although consistent with previous studies, these results highlight the continued need to develop, implement, and monitor strategies to increase HPV4 vaccine initiation and completion in younger adolescents to achieve maximum impact in reducing the burden of cervical cancer and other HPV-related diseases.
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Affiliation(s)
- Mark A Schmidt
- The Center for Health Research, Kaiser Permanente Northwest, Portland, Oregon.
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18
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The association of the immune response genes to human papillomavirus-related cervical disease in a Brazilian population. BIOMED RESEARCH INTERNATIONAL 2013; 2013:146079. [PMID: 23936772 PMCID: PMC3722781 DOI: 10.1155/2013/146079] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2013] [Revised: 06/05/2013] [Accepted: 06/15/2013] [Indexed: 12/13/2022]
Abstract
The genetic variability of the host contributes to the risk of human papillomavirus (HPV)-related cervical disease. Immune response genes to HPV must be investigated to define patients with the highest risk of developing malignant disease. The aim of this study was to investigate the association of polymorphic immune response genes, namely KIR, HLA class I and II, and single-nucleotide polymorphisms (SNPs) of cytokines with HPV-related cervical disease. We selected 79 non-related, admixed Brazilian women from the state of Paraná, southern region of Brazil, who were infected with high carcinogenic risk HPV and present cervical intraepithelial neoplasia grade 3 (CIN3), and 150 HPV-negative women from the same region matched for ethnicity. KIR genes were genotyped using an in-house PCR-SSP. HLA alleles were typed using a reverse sequence-specific oligonucleotide technique. SNPs of TNF −308G>A, IL6 −174G>C, IFNG +874T>A, TGFB1 +869T>C +915G>C, and IL10 −592C>A −819C>T −1082G>A were evaluated using PCR-SSP. The KIR genes were not associated with HPV, although some pairs of i(inhibitory)KIR-ligands occurred more frequently in patients, supporting a role for NK in detrimental chronic inflammatory and carcinogenesis. Some HLA haplotypes were associated with HPV. The associations of INFG and IL10 SNPs potentially reflect impaired or invalid responses in advanced lesions.
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Lam TK, Spitz M, Schully SD, Khoury MJ. "Drivers" of translational cancer epidemiology in the 21st century: needs and opportunities. Cancer Epidemiol Biomarkers Prev 2013; 22:181-8. [PMID: 23322363 PMCID: PMC3565029 DOI: 10.1158/1055-9965.epi-12-1262] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Cancer epidemiology is at the cusp of a paradigm shift--propelled by an urgent need to accelerate the pace of translating scientific discoveries into health care and population health benefits. As part of a strategic planning process for cancer epidemiologic research, the Epidemiology and Genomics Research Program (EGRP) at the National Cancer Institute (NCI) is leading a "longitudinal" meeting with members of the research community to engage in an on-going dialogue to help shape and invigorate the field. Here, we review a translational framework influenced by "drivers" that we believe have begun guiding cancer epidemiology toward translation in the past few years and are most likely to drive the field further in the next decade. The drivers include: (i) collaboration and team science, (ii) technology, (iii) multilevel analyses and interventions, and (iv) knowledge integration from basic, clinical, and population sciences. Using the global prevention of cervical cancer as an example of a public health endeavor to anchor the conversation, we discuss how these drivers can guide epidemiology from discovery to population health impact, along the translational research continuum.
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Affiliation(s)
- Tram Kim Lam
- Epidemiology and Genomics Research Program, Division of Cancer Control and Population Sciences, National Cancer Institute, NIH, Bethesda, MD, USA.
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Astirin OP, Artanti AN, Fitria MS, Perwitasari EA, Prayitno A. <i> Annonaa muricata </i> Linn Leaf Induce Apoptosis in Cancer Cause Virus. ACTA ACUST UNITED AC 2013. [DOI: 10.4236/jct.2013.47146] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Wierstra I. FOXM1 (Forkhead box M1) in tumorigenesis: overexpression in human cancer, implication in tumorigenesis, oncogenic functions, tumor-suppressive properties, and target of anticancer therapy. Adv Cancer Res 2013; 119:191-419. [PMID: 23870513 DOI: 10.1016/b978-0-12-407190-2.00016-2] [Citation(s) in RCA: 136] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
FOXM1 (Forkhead box M1) is a typical proliferation-associated transcription factor and is also intimately involved in tumorigenesis. FOXM1 stimulates cell proliferation and cell cycle progression by promoting the entry into S-phase and M-phase. Additionally, FOXM1 is required for proper execution of mitosis. In accordance with its role in stimulation of cell proliferation, FOXM1 exhibits a proliferation-specific expression pattern and its expression is regulated by proliferation and anti-proliferation signals as well as by proto-oncoproteins and tumor suppressors. Since these factors are often mutated, overexpressed, or lost in human cancer, the normal control of the foxm1 expression by them provides the basis for deregulated FOXM1 expression in tumors. Accordingly, FOXM1 is overexpressed in many types of human cancer. FOXM1 is intimately involved in tumorigenesis, because it contributes to oncogenic transformation and participates in tumor initiation, growth, and progression, including positive effects on angiogenesis, migration, invasion, epithelial-mesenchymal transition, metastasis, recruitment of tumor-associated macrophages, tumor-associated lung inflammation, self-renewal capacity of cancer cells, prevention of premature cellular senescence, and chemotherapeutic drug resistance. However, in the context of urethane-induced lung tumorigenesis, FOXM1 has an unexpected tumor suppressor role in endothelial cells because it limits pulmonary inflammation and canonical Wnt signaling in epithelial lung cells, thereby restricting carcinogenesis. Accordingly, FOXM1 plays a role in homologous recombination repair of DNA double-strand breaks and maintenance of genomic stability, that is, prevention of polyploidy and aneuploidy. The implication of FOXM1 in tumorigenesis makes it an attractive target for anticancer therapy, and several antitumor drugs have been reported to decrease FOXM1 expression.
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Kruzikas D, Smith JS, Harley C, Buzinec P. Costs associated with management of cervical human papillomavirus-related conditions. Cancer Epidemiol Biomarkers Prev 2012; 21:1469-78. [PMID: 22781027 DOI: 10.1158/1055-9965.epi-11-1019] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Oncogenic types of human papillomavirus (HPV) have been linked to 99.7% of cervical cancer cases worldwide. METHODS This retrospective claims-based analysis was conducted to assess patterns of use and costs associated with diagnostic and treatment procedures for disease attributed to HPV performed before the introduction of HPV vaccination (January 1, 2001-May 31, 2006). Percentages of commercially insured health plan enrollees who underwent each procedure of interest were calculated for each year. Annual costs (combined patient and health plan-paid amounts) were calculated from qualifying medical claims. Descriptive statistics were used to assess trends in procedure rates and costs. RESULTS Data for approximately 14.2 million enrollees were obtained. Hysterectomy was the most commonly administered treatment. With the exception of colposcopy with LEEP, all other treatment procedures experienced a decline in rate of use. The most frequently performed diagnostic procedure was colposcopy with endocervical curettage (ECC). With the exception of ECC, rates of diagnostic procedures reached a peak among 20- to 24-year-olds, and followed a downward trend across older groups. Hysterectomy was the most expensive treatment (median $7,383; mean $8,384) per procedure in 2006. CONCLUSION Results reveal high rates of use and high-associated costs of diagnostic procedures and treatments related to disease attributed to HPV. IMPACT The data presented may be useful in cost-effectiveness analyses and to guide decision makers evaluating how best to optimize prevention strategies.
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Gutschner T, Diederichs S. The hallmarks of cancer: a long non-coding RNA point of view. RNA Biol 2012. [PMID: 22664915 DOI: 10.4161/rna.20481395] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
With the advent of next generation sequencing methods and progress in transcriptome analysis, it became obvious that the human genome contains much more than just protein-coding genes. In fact, up to 70% of our genome is transcribed into RNA that does not serve as templates for proteins. In this review, we focus on the emerging roles of these long non-coding RNAs (lncRNAs) in the field of tumor biology. Long ncRNAs were found to be deregulated in several human cancers and show tissue-specific expression. Functional studies revealed a broad spectrum of mechanisms applied by lncRNAs such as HOTAIR, MALAT1, ANRIL or lincRNA-p21 to fulfill their functions. Here, we link the cellular processes influenced by long ncRNAs to the hallmarks of cancer and therefore provide an ncRNA point-of-view on tumor biology. This should stimulate new research directions and therapeutic options considering long ncRNAs as novel prognostic markers and therapeutic targets.
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Affiliation(s)
- Tony Gutschner
- Helmholtz-University-Group "Molecular RNA Biology & Cancer", German Cancer Research Center DKFZ, Heidelberg, Germany
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Abstract
With the advent of next generation sequencing methods and progress in transcriptome analysis, it became obvious that the human genome contains much more than just protein-coding genes. In fact, up to 70% of our genome is transcribed into RNA that does not serve as templates for proteins. In this review, we focus on the emerging roles of these long non-coding RNAs (lncRNAs) in the field of tumor biology. Long ncRNAs were found to be deregulated in several human cancers and show tissue-specific expression. Functional studies revealed a broad spectrum of mechanisms applied by lncRNAs such as HOTAIR, MALAT1, ANRIL or lincRNA-p21 to fulfill their functions. Here, we link the cellular processes influenced by long ncRNAs to the hallmarks of cancer and therefore provide an ncRNA point-of-view on tumor biology. This should stimulate new research directions and therapeutic options considering long ncRNAs as novel prognostic markers and therapeutic targets.
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Affiliation(s)
- Tony Gutschner
- Helmholtz-University-Group "Molecular RNA Biology & Cancer", German Cancer Research Center DKFZ, Heidelberg, Germany
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Mendoza-Catalán MA, Cristóbal-Mondragón GR, Adame-Gómez J, del Valle-Flores HN, Coppe JF, Sierra-López L, Romero-Hernández MA, del Carmen Alarcón-Romero L, Illades-Aguiar B, Castañeda-Saucedo E. Nuclear expression of Rac1 in cervical premalignant lesions and cervical cancer cells. BMC Cancer 2012; 12:116. [PMID: 22443139 PMCID: PMC3340301 DOI: 10.1186/1471-2407-12-116] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2011] [Accepted: 03/23/2012] [Indexed: 01/28/2023] Open
Abstract
Background Abnormal expression of Rho-GTPases has been reported in several human cancers. However, the expression of these proteins in cervical cancer has been poorly investigated. In this study we analyzed the expression of the GTPases Rac1, RhoA, Cdc42, and the Rho-GEFs, Tiam1 and beta-Pix, in cervical pre-malignant lesions and cervical cancer cell lines. Methods Protein expression was analyzed by immunochemistry on 102 cervical paraffin-embedded biopsies: 20 without Squamous Intraepithelial Lesions (SIL), 51 Low- grade SIL, and 31 High-grade SIL; and in cervical cancer cell lines C33A and SiHa, and non-tumorigenic HaCat cells. Nuclear localization of Rac1 in HaCat, C33A and SiHa cells was assessed by cellular fractionation and Western blotting, in the presence or not of a chemical Rac1 inhibitor (NSC23766). Results Immunoreacivity for Rac1, RhoA, Tiam1 and beta-Pix was stronger in L-SIL and H-SIL, compared to samples without SIL, and it was significantly associated with the histological diagnosis. Nuclear expression of Rac1 was observed in 52.9% L-SIL and 48.4% H-SIL, but not in samples without SIL. Rac1 was found in the nucleus of C33A and SiHa cells but not in HaCat cells. Chemical inhibition of Rac1 resulted in reduced cell proliferation in HaCat, C33A and SiHa cells. Conclusion Rac1 is expressed in the nucleus of epithelial cells in SILs and cervical cancer cell lines, and chemical inhibition of Rac1 reduces cellular proliferation. Further studies are needed to better understand the role of Rho-GTPases in cervical cancer progression.
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Affiliation(s)
- Miguel A Mendoza-Catalán
- Laboratorio de Biología Celular del Cáncer, UACQB, Universidad Autónoma de Guerrero, Guerrero, Mexico.
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Carvajal M, Berumen J, Guardado-Estrada M. The presence of aflatoxin B1-FAPY adduct and human papilloma virus in cervical smears from cancer patients in Mexico. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2012; 29:258-68. [DOI: 10.1080/19440049.2011.647098] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Delmas AL, Riggs BM, Pardo CE, Dyer LM, Darst RP, Izumchenko EG, Monroe M, Hakam A, Kladde MP, Siegel EM, Brown KD. WIF1 is a frequent target for epigenetic silencing in squamous cell carcinoma of the cervix. Carcinogenesis 2011; 32:1625-33. [PMID: 21873353 PMCID: PMC3204350 DOI: 10.1093/carcin/bgr193] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2011] [Revised: 07/22/2011] [Accepted: 08/08/2011] [Indexed: 02/07/2023] Open
Abstract
Aberrant activation of the Wnt/β-catenin signaling axis is a prominent oncogenic mechanism in numerous cancers including cervical cancer. Wnt inhibitory factor-1 (WIF1) is a secreted protein that binds Wnt and antagonizes Wnt activity. While the WIF1 gene is characterized as a target for epigenetic silencing in some tumor types, WIF1 expression has not been examined in human cervical tissue and cervical cancer. Here, we show that WIF1 is unmethylated and its gene product is expressed in normal cervical epithelium and some cultured cervical tumor lines. In contrast, several cervical cancer lines contained dense CpG methylation within the WIF1 gene, and expression of both WIF1 transcript and protein was restored by culturing cells in the presence of the global DNA demethylating agent 5-aza-2'-deoxycytidine. Using single-molecule MAPit methylation footprinting, we observed differences in chromatin structure within the WIF1 promoter region between cell lines that express and those that do not express WIF1, consistent with transcriptional activity and repression, respectively. The WIF1 promoter was aberrantly methylated in ∼60% (10 of 17) high-grade highly undifferentiated squamous cell cervical tumors examined, whereas paired normal tissue showed significantly lower levels of CpG methylation. WIF1 protein was not detectable by immunohistochemistry in tumors with quantitatively high levels of WIF1 methylation. Of note, WIF1 protein was not detectable in two of the seven unmethylated cervical tumors examined, suggesting other mechanisms may contribute WIF1 repression. Our findings establish the WIF1 gene as a frequent target for epigenetic silencing in squamous cell carcinoma of the cervix.
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MESH Headings
- Adaptor Proteins, Signal Transducing/genetics
- Adaptor Proteins, Signal Transducing/metabolism
- Azacitidine/analogs & derivatives
- Azacitidine/pharmacology
- Blotting, Western
- Carcinoma, Squamous Cell/genetics
- Carcinoma, Squamous Cell/metabolism
- Carcinoma, Squamous Cell/pathology
- Cell Line
- Cervix Uteri/metabolism
- CpG Islands/genetics
- DNA Methylation
- Decitabine
- Epigenesis, Genetic
- Female
- Gene Expression Regulation, Neoplastic
- Gene Silencing
- Humans
- Immunoenzyme Techniques
- Promoter Regions, Genetic
- RNA, Messenger/genetics
- Repressor Proteins/genetics
- Repressor Proteins/metabolism
- Reverse Transcriptase Polymerase Chain Reaction
- Uterine Cervical Neoplasms/genetics
- Uterine Cervical Neoplasms/metabolism
- Uterine Cervical Neoplasms/pathology
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Affiliation(s)
| | - Bridget M. Riggs
- Cancer Epidemiology Program, Division of Population Sciences, H. Lee Moffitt Cancer Center & Research Institute, 12902 Magnolia Drive, Tampa, FL 33612, USA
| | | | | | | | | | - Mänette Monroe
- Department of Pathology, Immunology and Laboratory Medicine, College of Medicine, University of Florida, Gainesville, FL 32610, USA
| | - Ardeshir Hakam
- Department of Anatomic Pathology, H. Lee Moffitt Cancer Center & Research Institute, 12902 Magnolia Drive, Tampa, FL 33612, USA
| | - Michael P. Kladde
- To whom correspondence should be addressed. Department of Biochemistry and Molecular Biology, College of Medicine, University of Florida, Box 100245, Gainesville, FL 32610, USA. Tel: +352 273 5458,
| | - Erin M. Siegel
- Cancer Epidemiology Program, Division of Population Sciences, H. Lee Moffitt Cancer Center & Research Institute, 12902 Magnolia Drive, Tampa, FL 33612, USA
| | - Kevin D. Brown
- To whom correspondence should be addressed. Department of Biochemistry and Molecular Biology, College of Medicine, University of Florida, Box 100245, Gainesville, FL 32610, USA. Tel: +352 273 5458,
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The Prognostic Role of Human Papillomavirus in Patients With Vaginal Cancer. Int J Gynecol Cancer 2011; 21:923-9. [DOI: 10.1097/igc.0b013e31821bc615] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
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Matijevic M, Hedley ML, Urban RG, Chicz RM, Lajoie C, Luby TM. Immunization with a poly (lactide co-glycolide) encapsulated plasmid DNA expressing antigenic regions of HPV 16 and 18 results in an increase in the precursor frequency of T cells that respond to epitopes from HPV 16, 18, 6 and 11. Cell Immunol 2011; 270:62-9. [PMID: 21550027 PMCID: PMC7094646 DOI: 10.1016/j.cellimm.2011.04.005] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2010] [Revised: 03/24/2011] [Accepted: 04/14/2011] [Indexed: 01/08/2023]
Abstract
A phase II trial was conducted in subjects with human papillomavirus (HPV) associated high-grade cervical dysplasia testing the safety and efficacy of a microparticle encapsulated pDNA vaccine. Amolimogene expresses T cell epitopes from E6 and E7 proteins of HPV types 16 and 18. An analysis was performed on a subset of HLA-A2+ subjects to test whether CD8+ T cells specific to HPV 16, 18, 6 and 11 were increased in response to amolimogene immunization. Of the 21 subjects receiving amolimogene, 11 had elevated CD8+ T cell responses to HPV 16 and/or 18 peptides and seven of these also had increases to corresponding HPV 6 and/or 11 peptides. In addition, T cells primed and expanded in vitro with an HPV 18 peptide demonstrated cross-reactivity to the corresponding HPV 11 peptide. These data demonstrate that treatment with amolimogene elicits T cell responses to HPV 16, 18, 6 and 11.
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Abstract
Various strategies have been used to generate cellular cancer vaccines with the expectation that they will become an effective part of the overall management of cancer patients. However, with few notable exceptions, immunization has not resulted in significant long-term therapeutic benefits. Tumor growth has continued and patient survival has been at best only modestly prolonged. One possible explanation is that as only a small proportion of the constituents of malignant cells are "tumor specific" and the vast majority are the products of nonantigenic, normal "housekeeping" genes, the immune response in patients immunized with cellular cancer vaccines is not sufficient to result in tumor rejection. Here, we review and characterize various types of cellular cancer vaccines. In addition, in a mouse breast cancer model system, we describe a unique strategy designed to enrich cellular vaccines for cells that induce tumor immunity. Numerous advantages and disadvantages of cancer immunotherapy with cellular vaccines are also presented.
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Affiliation(s)
- Edward P Cohen
- Department of Microbiology & Immunology, University of Illinois College of Medicine, 835 South Wolcott Ave., Chicago, IL 60612, USA.
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Lee S, Kim JH, Kim H, Kang JW, Kim SH, Yang Y, Kim J, Park J, Park S, Hong J, Yoon DY. Activation of the interleukin-32 pro-inflammatory pathway in response to human papillomavirus infection and over-expression of interleukin-32 controls the expression of the human papillomavirus oncogene. Immunology 2011; 132:410-20. [PMID: 21208204 DOI: 10.1111/j.1365-2567.2010.03377.x] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
High-risk variants of human papillomavirus (HPV) induce cervical cancer by persistent infection, and are regarded as the principal aetiological factor in this malignancy. The pro-inflammatory cytokine interleukin-32 (IL-32) is present at substantial levels in cervical cancer tissues and in HPV-positive cervical cancer cells. In this study, we identified the mechanism by which the high-risk HPV-16 E7 oncogene induces IL-32 expression in cervical cancer cells. We used antisense transfection, over-expression, or knock-down of IL-32 to assess the effects of the HPV-16 E7 oncogene on IL-32 expression in cervical cancer cells. Cyclo-oxygenase 2 (COX-2) inhibitor treatment was conducted, and the expression levels, as well as the promoter activities, of IL-32 and COX-2 were evaluated in human HPV-positive cervical cancer cell lines. E7 antisense treatment reduced the expression levels and promoter activities of COX-2, which is constitutively expressed in HPV-infected cells. Constitutively expressed IL-32 was also inhibited by E7 antisense treatment. Moreover, IL-32 expression was blocked by the application of the selective COX-2 inhibitor, NS398, whereas COX-2 over-expression resulted in increased IL-32 levels. These results show that the high-risk variant of HPV induces IL-32 expression via E7-mediated COX-2 stimulation. However, E7 and COX-2 were down-regulated in the IL-32γ over-expressing cells and recovered by IL-32 small interfering RNA, indicating that E7 and COX-2 were feedback-inhibited by IL-32γ in cervical cancer cells.
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Affiliation(s)
- Sojung Lee
- Department of Bioscience and Biotechnology, Bio/Molecular Informatics Centre, Seoul, Korea
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Construction and identification of a yeast two-hybrid bait vector and its effect on the growth of yeast cells and the self-activating function of reporter genes for screening of HPV18 E6-interacting protein. JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY. MEDICAL SCIENCES = HUA ZHONG KE JI DA XUE XUE BAO. YI XUE YING DE WEN BAN = HUAZHONG KEJI DAXUE XUEBAO. YIXUE YINGDEWEN BAN 2010; 30:8-12. [PMID: 20155448 DOI: 10.1007/s11596-010-0102-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2009] [Indexed: 10/19/2022]
Abstract
By using a yeast two-hybrid system, a yeast two-hybrid bait vector was constructed and identified for screening of the HPV18 E6-interacting proteins, and its effects on the growth of yeast cells and the activation of reporter genes were investigated. Total mRNA extracted from Hela cells was reversely transcribed into cDNA. Fragment of HPV18 E6 cDNA was amplified using RT-PCR and directly ligated to the pGBKT7 vector. The recombinant plasmid was confirmed by restriction endonuclease analysis and DNA sequencing. The recombinant pGBKT7-HPV18 E6 plasmid and empty pGBKT7 vector were transformed into the yeast cell AH109, respectively. After they were cultured respectively in YPDA liquid medium and nutrition-deficient culture medium, their toxicity and transcriptional activation were tested by both the phenotype assay and the color assay. The bait plasmid HPV18 E6 was successfully obtained. After being cultured in YPDA liquid medium for 16h, the A (600 nm) values of two yeast fluids were 0.98+/-0.03 and 0.99+/-0.02, respectively. The recombinant pGBKT7-HPV18 E6 plasmid and empty pGBKT7 vector could grow to white colonies on SD/-Trp/X-alpha-gal plates, while no colony could survive on SD/-His/-Trp/X-alpha-gal, SD/-Ade/-Trp/X-alpha-gal plates, indicating that the bait plasmid pGBKT7-HPV18 E6 was constructed successfully and expressed correctly, and could not activate the transcription of reporter gene alone. The yeast two-hybrid GAL4 system 3 can be utilized to find HPV18 E6 interacting proteins.
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Smith PA, Gray W. Cervical intraepithelial neoplasia and squamous cell carcinoma of the cervix. Diagn Cytopathol 2010. [DOI: 10.1016/b978-0-7020-3154-0.00023-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Bachran D, Schneider S, Bachran C, Urban R, Weng A, Melzig MF, Hoffmann C, Kaufmann AM, Fuchs H. Epidermal growth factor receptor expression affects the efficacy of the combined application of saponin and a targeted toxin on human cervical carcinoma cells. Int J Cancer 2009; 127:1453-61. [DOI: 10.1002/ijc.25123] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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