1
|
Okunade KS, Adejimi AA, John-Olabode SO, Oshodi YA, Oluwole AA. An Overview of HPV Screening Tests to Improve Access to Cervical Cancer Screening Amongst Underserved Populations: From Development to Implementation. Risk Manag Healthc Policy 2022; 15:1823-1830. [PMID: 36176779 PMCID: PMC9514784 DOI: 10.2147/rmhp.s296914] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Accepted: 09/14/2022] [Indexed: 12/12/2022] Open
Abstract
Cervical cancer is the most common human papillomavirus (HPV)-related disease. Knowledge of the natural history and aetiology of cervical cancer offers unique opportunities for its prevention, and the development of HPV screening tests is one of the most effective strategies. The current HPV diagnostics detect HPV DNA or E6/E7 mRNA in cervical/vaginal samples using molecular-based technologies. HPV screening tests are more sensitive than cytology or visual inspection with acetic acid (VIA) as a primary screening method and are even more clinically valuable in triaging mild cytological abnormalities as a hybrid test. As technical and laboratory resources are grossly limited in marginalized or underserved settings which thus require that women travel long distances for screening and treatment. The practical implementation of an HPV-based screening programme may face many challenges and measures should be instituted to overcome these challenges without compromising disease detection. These measures may include a reduction in screening frequency using the WHO global strategy of offering HPV screening tests at 35 and 45 years of age, adoption of a high throughput testing technology, and improved access to vaginal HPV self-sampling screening tests to women in remote settings or those who are reluctant to undergo gynecologic examination. Another important strategy is the implementation of a "see-and-treat" approach using a point-of-care platform that requires limited skills of laboratory technicians. In addition, the development and large-scale incorporation of more specific HPV testing technologies that are much cheaper and easier to use in non-laboratory settings than the currently available options should be prioritized for underserved settings. At the same time, there is a need to develop and commence the implementation of an affordable and readily available intermediate or secondary test with optimal specificity for triaging or segregating clinically unimportant HPV infections that do not require colposcopy.
Collapse
Affiliation(s)
- Kehinde S Okunade
- Department of Obstetrics & Gynaecology, College of Medicine, University of Lagos, Lagos, Nigeria
| | - Adebola A Adejimi
- Department of Community Health and Primary Care, College of Medicine, University of Lagos, Lagos, Nigeria
| | - Sarah O John-Olabode
- Department of Haematology and Blood Transfusion, College of Medicine, University of Lagos, Lagos, Nigeria
| | - Yusuf A Oshodi
- Department of Obstetrics & Gynaecology, Lagos State University College of Medicine, Lagos, Nigeria
| | - Ayodeji A Oluwole
- Department of Obstetrics & Gynaecology, College of Medicine, University of Lagos, Lagos, Nigeria
| |
Collapse
|
2
|
Carneiro MCCG, Rodrigues LR, Moreira FTC, Sales MGF. Colorimetric Paper-Based Sensors against Cancer Biomarkers. SENSORS (BASEL, SWITZERLAND) 2022; 22:s22093221. [PMID: 35590912 PMCID: PMC9102172 DOI: 10.3390/s22093221] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 04/15/2022] [Accepted: 04/17/2022] [Indexed: 05/14/2023]
Abstract
Cancer is a major cause of mortality and morbidity worldwide. Detection and quantification of cancer biomarkers plays a critical role in cancer early diagnosis, screening, and treatment. Clinicians, particularly in developing countries, deal with high costs and limited resources for diagnostic systems. Using low-cost substrates to develop sensor devices could be very helpful. The interest in paper-based sensors with colorimetric detection increased exponentially in the last decade as they meet the criteria for point-of-care (PoC) devices. Cellulose and different nanomaterials have been used as substrate and colorimetric probes, respectively, for these types of devices in their different designs as spot tests, lateral-flow assays, dipsticks, and microfluidic paper-based devices (μPADs), offering low-cost and disposable devices. However, the main challenge with these devices is their low sensitivity and lack of efficiency in performing quantitative measurements. This review includes an overview of the use of paper for the development of sensing devices focusing on colorimetric detection and their application to cancer biomarkers. We highlight recent works reporting the use of paper in the development of colorimetric sensors for cancer biomarkers, such as proteins, nucleic acids, and others. Finally, we discuss the main advantages of these types of devices and highlight their major pitfalls.
Collapse
Affiliation(s)
- Mariana C. C. G. Carneiro
- BioMark@ISEP, School of Engineering, Polytechnic Institute, 4249-015 Porto, Portugal;
- Centre of Biological Engineering, Minho University (CEB), 4710-057 Braga, Portugal; (L.R.R.); (M.G.F.S.)
- LABBELS—Associate Laboratory, 4710-057 Braga, Portugal
| | - Ligia R. Rodrigues
- Centre of Biological Engineering, Minho University (CEB), 4710-057 Braga, Portugal; (L.R.R.); (M.G.F.S.)
- LABBELS—Associate Laboratory, 4710-057 Braga, Portugal
| | - Felismina T. C. Moreira
- BioMark@ISEP, School of Engineering, Polytechnic Institute, 4249-015 Porto, Portugal;
- Centre of Biological Engineering, Minho University (CEB), 4710-057 Braga, Portugal; (L.R.R.); (M.G.F.S.)
- LABBELS—Associate Laboratory, 4710-057 Braga, Portugal
- Correspondence:
| | - Maria Goreti F. Sales
- Centre of Biological Engineering, Minho University (CEB), 4710-057 Braga, Portugal; (L.R.R.); (M.G.F.S.)
- LABBELS—Associate Laboratory, 4710-057 Braga, Portugal
- BioMark@UC, Faculty of Sciences and Technology, Coimbra University, 3030-790 Coimbra, Portugal
| |
Collapse
|
3
|
Camara H, Zhang Y, Lafferty L, Vallely AJ, Guy R, Kelly-Hanku A. Self-collection for HPV-based cervical screening: a qualitative evidence meta-synthesis. BMC Public Health 2021; 21:1503. [PMID: 34348689 PMCID: PMC8336264 DOI: 10.1186/s12889-021-11554-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Accepted: 07/22/2021] [Indexed: 12/20/2022] Open
Abstract
Background Cervical cancer is the fourth most common cancer affecting women worldwide, with 85% of the burden estimated to occur among women in low and middle-income countries (LMICs). Recent developments in cervical cancer screening include a novel self-collection method for the detection of oncogenic HPV strains in the collected samples. The purpose of this review is to synthesise qualitative research on self-collection for HPV-based testing for cervical screening and identify strategies to increase acceptability and feasibility in different settings, to alleviate the burden of disease. Methods This review includes qualitative studies published between 1986 and 2020. A total of 10 databases were searched between August 2018 and May 2020 to identify qualitative studies focusing on the perspectives and experiences of self-collection for HPV-based cervical screening from the point of view of women, health care workers and other key stakeholders (i.e., policymakers). Two authors independently assessed studies for inclusion, quality, and framework thematic synthesis findings. The Socio-Ecological Model (SEM) was used to synthesize the primary studies. Results A total of 1889 publications were identified, of which 31 qualitative studies were included. Using an adapted version of SEM, 10 sub-themes were identified and classified under each of the adapted model’s constructs: (a) intrapersonal, (b) interpersonal, and (c) health systems/public policy. Some of the themes included under the intrapersonal (or individual) construct include the importance of self-efficacy, and values attributed to self-collection. Under the intrapersonal construct, the findings centre around the use of self-collection and its impact on social relationships. The last construct of health systems focuses on needs to ensure access to self-collection, the need for culturally sensitive programs to improve health literacy, and continuum of care. Conclusion This review presents the global qualitative evidence on self-collection for HPV-based testing and details potential strategies to address socio-cultural and structural barriers and facilitators to the use of self-collection. If addressed during the design of an HPV-based cervical cancer screening testing intervention program, these strategies could significantly increase the acceptability and feasibility of the intervention and lead to more effective and sustainable access to cervical screening services for women worldwide. Supplementary Information The online version contains supplementary material available at 10.1186/s12889-021-11554-6.
Collapse
Affiliation(s)
- Hawa Camara
- Kirby Institute for Infection and Immunity in Society, UNSW Sydney, Level 6, Wallace Wurth Building, Sydney, NSW, 2052, Australia.
| | - Ye Zhang
- Kirby Institute for Infection and Immunity in Society, UNSW Sydney, Level 6, Wallace Wurth Building, Sydney, NSW, 2052, Australia
| | - Lise Lafferty
- Kirby Institute for Infection and Immunity in Society, UNSW Sydney, Level 6, Wallace Wurth Building, Sydney, NSW, 2052, Australia.,Centre for Social Research in Health, UNSW Sydney, Goodsell Building, Sydney, NSW, 2052, Australia
| | - Andrew J Vallely
- Kirby Institute for Infection and Immunity in Society, UNSW Sydney, Level 6, Wallace Wurth Building, Sydney, NSW, 2052, Australia.,Papua New Guinea Institute of Medical Research, Homate Street, PO Box 60, Goroka, Eastern Highlands Province, Papua New Guinea
| | - Rebecca Guy
- Kirby Institute for Infection and Immunity in Society, UNSW Sydney, Level 6, Wallace Wurth Building, Sydney, NSW, 2052, Australia
| | - Angela Kelly-Hanku
- Kirby Institute for Infection and Immunity in Society, UNSW Sydney, Level 6, Wallace Wurth Building, Sydney, NSW, 2052, Australia.,Papua New Guinea Institute of Medical Research, Homate Street, PO Box 60, Goroka, Eastern Highlands Province, Papua New Guinea
| |
Collapse
|
4
|
Yang Z, Francisco J, Reese AS, Spriggs DR, Im H, Castro CM. Addressing cervical cancer screening disparities through advances in artificial intelligence and nanotechnologies for cellular profiling. BIOPHYSICS REVIEWS 2021; 2:011303. [PMID: 33842926 PMCID: PMC8015256 DOI: 10.1063/5.0043089] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Accepted: 03/15/2021] [Indexed: 06/12/2023]
Abstract
Almost all cases of cervical cancer are caused by the human papilloma virus (HPV). Detection of pre-cancerous cervical changes provides a window of opportunity for cure of an otherwise lethal disease when metastatic. With a greater understanding of the biology and natural course of high-risk HPV infections, screening methods have shifted beyond subjective Pap smears toward more sophisticated and objective tactics. This has led to a substantial growth in the breadth and depth of HPV-based cervical cancer screening tests, especially in developed countries without constrained resources. Many low- and middle-income countries (LMICs) have less access to advanced laboratories and healthcare resources, so new point-of-care (POC) technologies have been developed to provide test results in real time, improve the efficiency of techniques, and increase screening adoption. In this Review, we will discuss how novel decentralized screening technologies and computational strategies improve upon traditional methods and how their realized promise could further democratize cervical cancer screening and promote greater disease prevention.
Collapse
Affiliation(s)
| | | | - Alexandra S. Reese
- Cancer Center, Massachusetts General Hospital, Boston, Massachusetts 02114, USA
| | - David R. Spriggs
- Cancer Center, Massachusetts General Hospital, Boston, Massachusetts 02114, USA
| | - Hyungsoon Im
- Authors to whom all correspondence should be addressed: and
| | | |
Collapse
|
5
|
Camara H, Zhang Y, Lafferty L, Vallely A, Guy R, Kelly-Hanku A. Qualitative Evidence Synthesis on Self-Collection for Human Papillomavirus-Based Cervical Screening: Protocol for Systematic Review. JMIR Res Protoc 2020; 9:e21093. [PMID: 33090114 PMCID: PMC7644378 DOI: 10.2196/21093] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 08/11/2020] [Accepted: 08/18/2020] [Indexed: 12/22/2022] Open
Abstract
Background Cervical cancer is the fourth most common cancer affecting women worldwide. In the 1980s, it was found that the sexually transmitted disease human papillomavirus causes over 90% of all cervical cancer cases. Since that discovery, diagnostic technologies have been developed for the detection of human papillomavirus DNA in cervical samples. However, significant sociocultural and structural barriers remain. Considerable strides have taken place in recent years to address these barriers, such as the self-collection for human papillomavirus–based cervical screening method. Objective The purpose of this review is to synthesize qualitative evidence around the self-collection method and identify strategies to increase acceptability and feasibility in different settings. This qualitative synthesis will be used to better understand how to conceptualize and implement more effective, accessible, and socially and culturally acceptable cervical screening programs and policies globally. Methods A systematic search will be conducted in Global Health, Cochrane, CINAHL (Cumulative Index to Nursing and Allied Health Literature), ProQuest, ScienceDirect, EMBASE, EMCARE, Medline (OVID), Scopus, and Web of Science. Published and peer-reviewed articles will be included. Two reviewers will independently screen and assess the studies. The data will be coded and analyzed using a thematic synthesis process. The socioecological model will be used to organize emergent themes at the micro and macro levels. The results will be presented in narrative and tabular form. Results The article search and data extraction were completed in May 2020. The data were analyzed in June 2020. The review will be submitted for publication in Fall 2020. Conclusions This review will present the global evidence of the perspectives and experiences of various key stakeholders and how these perspectives and experiences impact their decision-making process to perform or accept self-collection for human papillomavirus–based cervical screening. The review will provide guidance to implementation researchers as well as implications for future research. Trial Registration PROSPERO International Prospective Register of Systematic Reviews CRD42019109073; https://www.crd.york.ac.uk/PROSPERO/display_record.php?RecordID=109073 International Registered Report Identifier (IRRID) DERR1-10.2196/21093
Collapse
Affiliation(s)
- Hawa Camara
- The Kirby Institute, UNSW Sydney, Wallace Wurth Building, Kensington, Australia
| | - Ye Zhang
- The Kirby Institute, UNSW Sydney, Wallace Wurth Building, Kensington, Australia
| | - Lise Lafferty
- The Kirby Institute, UNSW Sydney, Wallace Wurth Building, Kensington, Australia.,Centre for Social Research in Health, UNSW Sydney, Kensington, Australia
| | - Andrew Vallely
- The Kirby Institute, UNSW Sydney, Wallace Wurth Building, Kensington, Australia.,Papua New Guinea Institute of Medical Research, Goroka, Eastern Highlands Province, Papua New Guinea
| | - Rebecca Guy
- The Kirby Institute, UNSW Sydney, Wallace Wurth Building, Kensington, Australia
| | - Angela Kelly-Hanku
- The Kirby Institute, UNSW Sydney, Wallace Wurth Building, Kensington, Australia.,Papua New Guinea Institute of Medical Research, Goroka, Eastern Highlands Province, Papua New Guinea
| |
Collapse
|
6
|
Molina MA, Carosi Diatricch L, Castany Quintana M, Melchers WJ, Andralojc KM. Cervical cancer risk profiling: molecular biomarkers predicting the outcome of hrHPV infection. Expert Rev Mol Diagn 2020; 20:1099-1120. [PMID: 33044104 DOI: 10.1080/14737159.2020.1835472] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
INTRODUCTION Cervical cancer affects half a million women worldwide annually. Given the association between high-risk human papillomavirus (hrHPV) infection and carcinogenesis, hrHPV DNA testing became an essential diagnostic tool. However, hrHPV alone does not cause the disease, and, most importantly, many cervical lesions regress to normal in a year because of the host immune system. Hence, the low specificity of hrHPV DNA tests and their inability to predict the outcome of infections have triggered a further search for biomarkers. AREAS COVERED We evaluated the latest viral and cellular biomarkers validated for clinical use as primary screening or triage for cervical cancer and assessed their promise for prevention as well as potential use in the future. The literature search focused on effective biomarkers for different stages of the disease, aiming to determine their significance in predicting the outcome of hrHPV infections. EXPERT OPINION Biomarkers such as p16/Ki-67, hrHPV genotyping, hrHPV transcriptional status, and methylation patterns have demonstrated promising results. Their eventual implementation in the screening programs may support the prompt diagnosis of hrHPV infection and its progression to cancer. These biomarkers will help in making clinical management decisions on time, thus, saving the lives of hrHPV-infected women, particularly in developing countries.
Collapse
Affiliation(s)
- Mariano A Molina
- Department of Microbiology, Faculty of Science, Radboud University , Nijmegen, The Netherlands.,Department of Medical Microbiology, Radboud university medical center , Nijmegen, The Netherlands
| | | | - Marina Castany Quintana
- Department of Medical Microbiology, Radboud university medical center , Nijmegen, The Netherlands
| | - Willem Jg Melchers
- Department of Medical Microbiology, Radboud university medical center , Nijmegen, The Netherlands
| | - Karolina M Andralojc
- Department of Medical Microbiology, Radboud university medical center , Nijmegen, The Netherlands.,Department of Biochemistry, Radboud Institute for Molecular Life Sciences , Nijmegen, The Netherlands
| |
Collapse
|
7
|
Márquez A, Aymerich J, Dei M, Rodríguez-Rodríguez R, Vázquez-Carrera M, Pizarro-Delgado J, Giménez-Gómez P, Merlos Á, Terés L, Serra-Graells F, Jiménez-Jorquera C, Domínguez C, Muñoz-Berbel X. Reconfigurable multiplexed point of Care System for monitoring type 1 diabetes patients. Biosens Bioelectron 2019; 136:38-46. [DOI: 10.1016/j.bios.2019.04.015] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 04/02/2019] [Accepted: 04/07/2019] [Indexed: 01/15/2023]
|
8
|
Chen H, Liu K, Li Z, Wang P. Point of care testing for infectious diseases. Clin Chim Acta 2019; 493:138-147. [PMID: 30853460 PMCID: PMC6462423 DOI: 10.1016/j.cca.2019.03.008] [Citation(s) in RCA: 138] [Impact Index Per Article: 27.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 03/06/2019] [Accepted: 03/06/2019] [Indexed: 01/06/2023]
Abstract
Infectious diseases are caused by pathogenic microorganisms and can be transmitted between individuals and populations thus threatening the general public health and potentially the economy. Efficient diagnostic tools are needed to provide accurate and timely guidance for case identification, transmission disruption and appropriate treatment administration. Point of care (POC) tests provide actionable results near the patient and thereby serve as a personal "radar". In this review, we review clinical needs for POC testing for several major pathogens, including malaria parasites, human immunodeficiency virus (HIV), human papillomavirus (HPV), dengue, Ebola and Zika viruses and Mycobacterium tuberculosis (TB). We compare different molecular approaches, including pathogen nucleic acid and protein, circulating microRNA and antibodies, used in the POC tests. Finally, we review recent advances in novel POC technologies focusing on microfluidic and plasmonic-based approaches.
Collapse
Affiliation(s)
- Hui Chen
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA 19104, United States
| | - Kengku Liu
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA 19104, United States
| | - Zhao Li
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA 19104, United States
| | - Ping Wang
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA 19104, United States.
| |
Collapse
|
9
|
Ren W, Mohammed SI, Wereley S, Irudayaraj J. Magnetic Focus Lateral Flow Sensor for Detection of Cervical Cancer Biomarkers. Anal Chem 2019; 91:2876-2884. [PMID: 30632735 DOI: 10.1021/acs.analchem.8b04848] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
We report on a magnetic focus lateral flow biosensor (mLFS) for ultrasensitive detection of protein biomarkers in a practical format. With valosin-containing protein as a target protein, we show that the developed mLFS concept could detect as low as 25 fg/mL with magnetic focus to enhance target capture efficiency to deliver a 106-fold improvement in sensitivity compared to that of conventional lateral flow (LF) systems. The conceptualized strategy utilizes a simple magnet placed beneath the three-dimensional printed LF device to concentrate the targets at the signal zone without any additional instrumentation. In addition, protein mixtures extracted from the tissue of cervical cancer patients was also utilized to validate the sensor. To investigate the effect of magnetic focus on sensitivity, surface-enhanced Raman spectroscopy and dark-field imaging was utilized to characterize the distribution and movement of Fe3O4 core-Au shell nanoprobes in a model LF strip. Our experiments show that the magnetic focus results in an increased interaction time between the magnetic probe-labeled targets and the capture antibody, yielding a higher capture efficiency, allowing for ultrasensitive detection of the target not possible before with LF. The proposed mLFS can be utilized to detect a range of trace protein biomarkers for early diagnosis and can be combined with diverse pretreatment and signal amplification steps to query complex samples.
Collapse
Affiliation(s)
- Wen Ren
- Bioengineering, Cancer Center at Illinois , University of Illinois at Urbana-Champaign , Urbana , Illinois 61801 , United States
| | | | | | - Joseph Irudayaraj
- Bioengineering, Cancer Center at Illinois , University of Illinois at Urbana-Champaign , Urbana , Illinois 61801 , United States
| |
Collapse
|
10
|
Torres-Luquis O, Madden K, N'dri NM, Berg R, Olopade OF, Ngwa W, Abuidris D, Mittal S, Lyn-Cook B, Mohammed SI. LXR/RXR pathway signaling associated with triple-negative breast cancer in African American women. BREAST CANCER-TARGETS AND THERAPY 2018; 11:1-12. [PMID: 30588086 PMCID: PMC6304259 DOI: 10.2147/bctt.s185960] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Background Triple-negative breast cancer (TNBC) is more prevalent in African and African American (AA) women compared to European American (EA) women. African and AA women diagnosed with TNBC experience high frequencies of metastases and less favorable outcomes. Emerging evidence indicates that this disparity may in fact be the result of the uniquely aggressive biology of African and AA disease. Purpose To understand the reasons for TNBC in AA aggressive biology, we designed the present study to examine the proteomic profiles of TNBC and luminal A (LA) breast cancer within and across patients’ racial demographic groups in order to identify proteins or molecular pathways altered in TNBC that offer some explanation for its aggressiveness and potential targets for treatment. Materials and methods Proteomic profiles of TNBC, LA tumors, and their adjacent normal tissues from AA and EA women were obtained using 2-dimensional gel electrophoresis and bioinformatics, and differentially expressed proteins were validated by Western blot and immunohistochemistry. Our data showed that a number of proteins have significantly altered in expression in LA tumors compared to TNBC, both within and across patients’ racial demographic groups. The differentially overexpressed proteins in TNBC (compared to LA) of AA samples were distinct from those in TNBC (compared to LA) of EA women samples. Among the signaling pathways altered in AA TNBC compared to EA TNBC are innate immune signaling, calpain protease, and pyrimidine de novo synthesis pathways. Furthermore, liver LXR/RXR signaling pathway was altered between LA and TNBC in AA women and may be due to the deficiency of the CYP7B1 enzyme responsible for cholesterol degradation. Conclusion These findings suggest that TNBC in AA women enriched in signaling pathways that are different from TNBC in EA women. Our study draws a link between LXR/RXR expression, cholesterol, obesity, and the TNBC in AA women.
Collapse
Affiliation(s)
- Odalys Torres-Luquis
- Department of Comparative Pathobiology, Purdue University, West Lafayette, IN, USA, .,Purdue University Center for Cancer Research, Purdue University, West Lafayette, IN, USA,
| | - Krystal Madden
- Department of Learning Sciences, University of Illinois at Chicago, Chicago, IL, USA
| | - N'sanh Mr N'dri
- Department of Comparative Pathobiology, Purdue University, West Lafayette, IN, USA,
| | - Richard Berg
- Department of Surgery, Indiana University Health, Lafayette, IN, USA
| | - Olufunmilayo F Olopade
- Center for Clinical Cancer Genetics and Global Health, Department of Medicine, University of Chicago, Chicago, IL, USA
| | - Wilfred Ngwa
- Department of Radiation Oncology, Brigham and Women's Hospital, Boston, MA, USA.,Department of Radiation Oncology, Harvard Medical School, Boston, MA, USA
| | - Dafalla Abuidris
- Department of Oncology, National Cancer Institute, University of Gezira, Gezira, Sudan
| | - Suresh Mittal
- Department of Comparative Pathobiology, Purdue University, West Lafayette, IN, USA, .,Purdue University Center for Cancer Research, Purdue University, West Lafayette, IN, USA,
| | - Beverly Lyn-Cook
- Division of Biochemical Toxicology, National Center for Toxicological Research, Jefferson, AR, USA
| | - Sulma I Mohammed
- Department of Comparative Pathobiology, Purdue University, West Lafayette, IN, USA, .,Purdue University Center for Cancer Research, Purdue University, West Lafayette, IN, USA,
| |
Collapse
|
11
|
Duscharla D, Reddy Kami Reddy K, Dasari C, Bhukya S, Ummanni R. Interleukin-6 induced overexpression of valosin-containing protein (VCP)/p97 is associated with androgen-independent prostate cancer (AIPC) progression. J Cell Physiol 2018; 233:7148-7164. [PMID: 29693262 DOI: 10.1002/jcp.26639] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Accepted: 03/30/2018] [Indexed: 12/21/2022]
Abstract
Though Androgen deprivation therapy (ADT) is effective initially, numerous patients become resistant to it and develop castration resistant PCa (CRPC). Cytokines promotes ligand independent activation of AR. Interleukin-6 (IL-6) levels are elevated in CRPC patients and regulate AR activity. However, progression to CRPC is not fully understood. In this study, we analyzed differential protein expression in LNCaP cells treated with IL-6 using proteomics. Results revealed altered expression of 27 proteins and Valosin-containing protein (VCP)/p97 plays a predominant role in co-regulation of altered proteins. Interestingly, IL-6 induced VCP expression through Pim-1 via STAT3 is AR independent there by suggesting a role for VCP in CRPC. Transfection of LNCaP cells for VCP overexpression showed an increased cell proliferation, migration, and invasion where as its inhibition by NMS-873 showed the reverse effect causing cell death. Mechanistic studies demonstrate that cell death occurs due to apoptosis by endoplasmic reticulum (ER) stress, elevated cell cycle inhibitors p21, p27kip1, and active PARP and reduced Bcl-2. VCP promotes cell invasion and migration by altering E-cadherin and Vimentin levels inversely triggering EMT of PCa cells. VCP immunostaining revealed no staining in BPH but strong staining in PCa. This study determines VCP may play an important role in progression to CRPC and it can be a favorable target with to develop new therapies to treat ADT resistant prostate cancer.
Collapse
Affiliation(s)
- Divya Duscharla
- Center for Chemical Biology, Indian Institute of Chemical Technology (IICT), Hyderabad, India.,Center for Academy of Scientific and Innovative Research, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
| | - Karthik Reddy Kami Reddy
- Center for Chemical Biology, Indian Institute of Chemical Technology (IICT), Hyderabad, India.,Center for Academy of Scientific and Innovative Research, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
| | - Chandrashekhar Dasari
- Center for Chemical Biology, Indian Institute of Chemical Technology (IICT), Hyderabad, India.,Center for Academy of Scientific and Innovative Research, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
| | - Supriya Bhukya
- Center for Chemical Biology, Indian Institute of Chemical Technology (IICT), Hyderabad, India
| | - Ramesh Ummanni
- Center for Chemical Biology, Indian Institute of Chemical Technology (IICT), Hyderabad, India.,Center for Academy of Scientific and Innovative Research, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
| |
Collapse
|
12
|
Chowdhury B, Cho IH, Irudayaraj J. Technical advances in global DNA methylation analysis in human cancers. J Biol Eng 2017; 11:10. [PMID: 28261325 PMCID: PMC5331624 DOI: 10.1186/s13036-017-0052-9] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Accepted: 02/10/2017] [Indexed: 02/07/2023] Open
Abstract
Prototypical abnormalities of genome-wide DNA methylation constitute the most widely investigated epigenetic mechanism in human cancers. Errors in the cellular machinery to faithfully replicate the global 5-methylcytosine (5mC) patterns, commonly observed during tumorigenesis, give rise to misregulated biological pathways beneficial to the rapidly propagating tumor mass but deleterious to the healthy tissues of the affected individual. A growing body of evidence suggests that the global DNA methylation levels could serve as utilitarian biomarkers in certain cancer types. Important breakthroughs in the recent years have uncovered further oxidized derivatives of 5mC - 5-hydroxymethylcytosine (5hmC), 5-formylcytosine (5fC) and 5-carboxylcytosine (5caC), thereby expanding our understanding of the DNA methylation dynamics. While the biological roles of these epigenetic derivatives are being extensively characterized, this review presents a perspective on the opportunity of innovation in the global methylation analysis platforms. While multiple methods for global analysis of 5mC in clinical samples exist and have been reviewed elsewhere, two of the established methods - Liquid Chromatography coupled with mass spectrometry (LC-MS/MS) and Immunoquantification have successfully evolved to include the quantitation of 5hmC, 5fC and 5caC. Although the analytical performance of LC-MS/MS is superior, the simplicity afforded by the experimental procedure of immunoquantitation ensures it’s near ubiquity in clinical applications. Recent developments in spectroscopy, nanotechnology and sequencing also provide immense promise for future evaluations and are discussed briefly. Finally, we provide a perspective on the current scenario of global DNA methylation analysis tools and present suggestions to develop the next generation toolset.
Collapse
Affiliation(s)
- Basudev Chowdhury
- Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University, West Lafayette, 47907 IN USA
| | - Il-Hoon Cho
- Department of Biomedical Laboratory Science, College of Health Science, Eulji University, Seongnam, 461-713 Republic of Korea
| | - Joseph Irudayaraj
- Bindley Bioscience Center, Purdue University, West Lafayette, IN 47907 USA
| |
Collapse
|
13
|
Viviano M, Kenfack B, Catarino R, Tincho E, Temogne L, Benski AC, Tebeu PM, Meyer-Hamme U, Vassilakos P, Petignat P. Feasibility of thermocoagulation in a screen-and-treat approach for the treatment of cervical precancerous lesions in sub-Saharan Africa. BMC WOMENS HEALTH 2017; 17:2. [PMID: 28061842 PMCID: PMC5219781 DOI: 10.1186/s12905-016-0355-x] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Accepted: 12/08/2016] [Indexed: 12/28/2022]
Abstract
BACKGROUND The use of thermocoagulation for the treatment of cervical precancerous lesions has recently generated a great deal of interest. Our aim was to determine the feasibility of this outpatient procedure in the context of a cervical cancer (CC) screen-and-treat campaign in sub-Saharan Africa. METHODS Between July and December 2015, women living in the area of Dschang (Cameroon) aged between 30 and 49 years, were enrolled in a CC screening study. HPV self-sampling was performed as a primary screening test and women who were either "HPV 16/18/45-positive" or "positive to other HPV types and to VIA" were considered screen-positive, thus requiring further management. The primary outcome was the percentage of screen-positive patients who met the criteria to undergo thermocoagulation. The secondary outcome was the assessment of the procedure's side effects immediately after treatment and at the 1-month follow-up visit. RESULTS A total of 1012 women were recruited in the study period. Among 121 screen-positive women, 110 of them (90.9%) were eligible to be treated with thermocoagulation. No patients discontinued treatment because of pain or other side effects. The mean ± SD (Standard Deviation) score measured on the 10-point Visual Analogue Scale (VAS) was 3.0 ± 1.6. Women having less than 2 children were more likely to report a higher pain score than those with more than two (4.2 ± 2.0 versus 2.9 ± 1.5, respectively; p value = 0.016). A total of 109/110 (99.1%) patients came to the 1-month follow-up visit. Vaginal discharge was reported in 108/109 (99.1%) patients throughout the month following treatment. Three patients (2.8%) developed vaginal infection requiring local antibiotics. No hospitalizations were required. CONCLUSION The majority of screen-positive women met the criteria and could be treated by thermocoagulation. The procedure was associated to minor side effects and is overall feasible in the context of a CC screen-and-treat campaign in sub-Saharan Africa. TRIAL REGISTRATION The trial was retrospectively registered on November 11, 2015 with the identifier: ISRCTN99459678 .
Collapse
Affiliation(s)
- Manuela Viviano
- Division of Gynaecology, Department of Gynaecology and Obstetrics, Geneva University Hospitals, Geneva, Switzerland. .,Division of Gynecology, Geneva University Hospitals, Boulevard de la Cluse 30, 1205, Geneva, Switzerland.
| | - Bruno Kenfack
- Department of Biomedical Sciences, University of Dschang, Dschang, Cameroon
| | - Rosa Catarino
- Division of Gynaecology, Department of Gynaecology and Obstetrics, Geneva University Hospitals, Geneva, Switzerland
| | - Eveline Tincho
- Department of Biomedical Sciences, University of Dschang, Dschang, Cameroon
| | - Liliane Temogne
- Department of Biomedical Sciences, University of Dschang, Dschang, Cameroon
| | - Anne-Caroline Benski
- Division of Gynaecology, Department of Gynaecology and Obstetrics, Geneva University Hospitals, Geneva, Switzerland.,Saint Damien Medical Centre, Ambanja, Madagascar
| | - Pierre-Marie Tebeu
- Department of Gynecology and Obstetrics, University Centre Hospital, Yaoundé, Cameroon
| | - Ulrike Meyer-Hamme
- Division of Gynaecology, Department of Gynaecology and Obstetrics, Geneva University Hospitals, Geneva, Switzerland
| | - Pierre Vassilakos
- Geneva Foundation for Medical Education and Research, Geneva, Switzerland
| | - Patrick Petignat
- Division of Gynaecology, Department of Gynaecology and Obstetrics, Geneva University Hospitals, Geneva, Switzerland
| |
Collapse
|