1
|
Davidović M, Dhokotera T, dos-Santos-Silva I, Bohlius J, Sengayi-Muchengeti M. Breast cancer in women by HIV status: A report from the South African National Cancer Registry. PLoS One 2024; 19:e0305274. [PMID: 38885245 PMCID: PMC11182510 DOI: 10.1371/journal.pone.0305274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 05/27/2024] [Indexed: 06/20/2024] Open
Abstract
BACKGROUND Breast cancer (BC) is the leading cause of cancer-related morbidity and mortality in women living in South Africa, a country with a high HIV burden. However, characteristics of the double burden of HIV and BC in South Africa have not been properly investigated. We described characteristics of BC cases by HIV status in South Africa. METHODS In this nationwide South African study, we obtained BC records for women aged ≥15 years diagnosed in the public health sector between January 2004 and December 2014. We included records from the National Cancer Registry that had been linked to HIV-related laboratory records from the National Health Laboratory Service. We assessed the odds of being HIV positive versus HIV negative in relation to patient-, cancer-, and municipality-related characteristics. RESULTS From 2004-2014, 40 520 BC cases were diagnosed in women aged ≥15 years. Of these, 73.5% had unknown HIV status, 18.7% were HIV negative, and 7.7% were HIV positive. The median age at BC diagnosis was 43 years (interquartile range [IQR]: 37-52) in HIV positive and 57 years (IQR: 46-68) in HIV negative women, respectively. The odds of being HIV positive was higher for women who were aged 30-34 years compared to women aged 35-39 years at cancer diagnosis (odds ratio [OR] 1.38, 95% confidence interval [CI] 1.10-1.71), Black versus non-Black (OR 6.41, 95% CI 5.68-7.23), diagnosed with cancer in rural versus urban areas (OR 1.59, 95% CI 1.40-1.82) and diagnosed in municipalities with low and middle (OR 3.46, 95% CI 2.48-4.82) versus high socioeconomic position (OR 2.69, 95% CI 2.11-3.42). CONCLUSION HIV status was unknown for the majority of BC patients. Among those with known HIV status, being HIV positive was associated with a younger age at cancer diagnosis, being Black and receiving care in municipalities of poor socioeconomic position. Future studies should examine opportunities to integrate HIV and BC control programs.
Collapse
Affiliation(s)
- Maša Davidović
- Graduate School for Health Sciences, University of Bern, Bern, Switzerland
- Epidemiology and Public Health Department, Swiss Tropical and Public Health Institute, Allschwil, Switzerland
- University of Basel, Basel, Switzerland
| | - Tafadzwa Dhokotera
- Epidemiology and Public Health Department, Swiss Tropical and Public Health Institute, Allschwil, Switzerland
- University of Basel, Basel, Switzerland
- Graduate School for Cellular and Biomedical Sciences, University of Bern, Bern, Switzerland
| | - Isabel dos-Santos-Silva
- Department of Non-Communicable Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Julia Bohlius
- Epidemiology and Public Health Department, Swiss Tropical and Public Health Institute, Allschwil, Switzerland
- University of Basel, Basel, Switzerland
| | - Mazvita Sengayi-Muchengeti
- National Cancer Registry, National Health Laboratory Service, Johannesburg, South Africa
- School of Public Health, University of the Witwatersrand, Johannesburg, South Africa
| |
Collapse
|
2
|
Uwishema O, Frederiksen KS, Badri R, Pradhan AU, Shariff S, Adanur I, Dost B, Esene I, Rosseau G. Epidemiology and etiology of brain cancer in Africa: A systematic review. Brain Behav 2023; 13:e3112. [PMID: 37312649 PMCID: PMC10498065 DOI: 10.1002/brb3.3112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 04/07/2023] [Accepted: 05/23/2023] [Indexed: 06/15/2023] Open
Abstract
BACKGROUND Cancer is a significant threat to public health and a leading cause of morbidity across the globe. Of all cancers, brain cancer can be particularly catastrophic as treatment often fails to achieve the desired degree of effectiveness and diagnosis remains associated with a high mortality rate. Africa, as a continent with resource-limited countries, needs to allocate the necessary proper healthcare infrastructure to significantly reduce cancer rates and improve patient survival. In addition, the relative paucity of data within this field in Africa makes effective management a challenge. OBJECTIVE This review is aimed at elucidating the currently available evidence base with regard to the epidemiology and etiology of brain cancer within resource-limited African countries. This review hopes to bring to the attention of the wider clinical community the growing burden of brain cancer within Africa and to encourage future research into this field of research. METHODS The available literature for this Systematic Review was searched on two bibliographic databases, PubMed and Scopus, using an individually verified, prespecified approach. In addition, the Global Cancer Observatory and Global Burden of Disease databases were also utilized. Studies reporting on the epidemiology, etiology, and impact of brain cancer in Africa were suitable for inclusion. The level of evidence of the included studies was considered as per the Centre for Evidence-Based Medicine recommendations. RESULTS Out of the four databases searched, 3848 articles were initially screened rigorously, filtered into 54 articles, and finally assessed qualitatively and quantitatively. We have demonstrated a poor survival rate and lack of proper funds/resources necessary to report, identify, and treat cases, as well as the dearth of comprehensive research on the subject of brain cancer that has become a challenging healthcare concern in many African developing nations. Also, because of the gradual improvement in healthcare facilities and the increasing population within many countries in Africa, the number of patients with central nervous system and intracranial tumors is rising specifically in the elder population. In addition, the population in West Africa is at a higher risk of HIV-related malignancies due to the high prevalence of HIV in West Africa. The burden of brain cancer in Africa is increasing in comparison with the developed parts of the world in which it is decreasing. Moreover, the mismanagement of cancers in Africa leads to higher morbidity and mortality and decreased quality of life. CONCLUSION This study addresses the burden of brain cancer as a major public health crisis in Africa. Improved treatment modalities and access to screening are required to better address the burden of this disease. Therefore, there is a clear need for more substantial and comprehensive research on etiology, epidemiology, and treatment of brain cancer within Africa to understand its epidemiological distribution and provide a means for managing and reducing the associated morbidity and mortality.
Collapse
Affiliation(s)
- Olivier Uwishema
- Department of Research and EducationOli Health Magazine OrganizationKigaliRwanda
- Department of Research and ProjectClinton Global Initiative UniversityNew YorkNew YorkUSA
- Faculty of MedicineKaradeniz Technical UniversityTrabzonTurkey
| | | | - Rawa Badri
- Department of Research and EducationOli Health Magazine OrganizationKigaliRwanda
- Mycetoma Research CentreKhartoumSudan
- Faculty of MedicineUniversity of KhartoumKhartoumSudan
| | | | - Sanobar Shariff
- Department of Research and EducationOli Health Magazine OrganizationKigaliRwanda
- Faculty of medicineYerevan State Medical UniversityYerevanArmenia
| | - Irem Adanur
- Department of Research and EducationOli Health Magazine OrganizationKigaliRwanda
- Faculty of MedicineKaradeniz Technical UniversityTrabzonTurkey
| | - Burhan Dost
- Department of Anaesthesiology and ReanimationOndokuz Mayis University Faculty of MedicineSamsunTurkey
| | - Ignatius Esene
- Neurosurgery Division, Faculty of Health SciencesUniversity of BamendaBambiliCameroon
| | - Gail Rosseau
- Department of NeurosurgeryGeorge Washington University School of Medicine and Health SciencesWashington, D.C.USA
| |
Collapse
|
3
|
Agegnew Wondm S, Dagnew EM, Tadesse Abegaz S, Kiflu M, Kebede B. Burden, risk factors, and management of neutropenic fever among solid cancer patients in Ethiopia. SAGE Open Med 2022; 10:20503121221098236. [PMID: 35646361 PMCID: PMC9130822 DOI: 10.1177/20503121221098236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Accepted: 04/14/2022] [Indexed: 11/19/2022] Open
Abstract
Objectives: Although neutropenic fever is one of the most well-known oncologic
emergencies and the common causes of death, a few studies have been
conducted in resource-limited countries, particularly in Ethiopia. This
study aimed to assess the burden, risk factors, and management of
neutropenic fever among solid cancer patients in Ethiopia. Methods: A hospital-based retrospective follow-up study was conducted from January
2017 to February 2021. Data were collected from patient’s medical charts
using a structured data abstraction format and analyzed using STATA version
14.2. Logistic regression analyses were used to identify independent
predictors of neutropenic fever, and a p-value of < 0.05
was considered statistically significant. Results: A total of 416 patients were included, with a mean age of 51 ± 14 years. The
cumulative incidence of neutropenic fever was 13%. Advanced age, low
baseline white blood cell, prolonged duration of neutropenia, and presence
of two or more comorbidities were factors significantly associated with
neutropenic fever (p < 0.05). Among patients who need
primary prophylaxis, 68% of patients did not get appropriate primary
prophylaxis, and 30%, 71%, and 93% of prescribed anti-bacterial,
anti-fungal, and anti-viral agents were inappropriate according to
Infectious Disease Society of America Guideline, respectively. Conclusion: Neutropenic fever was common among solid cancer patients and it is
multifactorial. The rate of guideline adherence during prophylaxis and
treatment of neutropenic fever was poor. Health care professionals should be
aware of these risk factors, and greater effort is needed to reduce the risk
of neutropenic fever.
Collapse
Affiliation(s)
- Samuel Agegnew Wondm
- Clinical Pharmacy Unit, Department of Pharmacy, College of Health Sciences, Debre Markos University, Debre Markos, Ethiopia
| | - Ephrem Mebratu Dagnew
- Clinical Pharmacy Unit, Department of Pharmacy, College of Health Sciences, Debre Markos University, Debre Markos, Ethiopia
| | - Sumeya Tadesse Abegaz
- Clinical Pharmacy Department, School of Pharmacy, College of Medicine and Health Science, University of Gondar, Gondar, Ethiopia
| | - Mekdes Kiflu
- Clinical Pharmacy Unit, Department of Pharmacy, College of Health Sciences, Debre Markos University, Debre Markos, Ethiopia
| | - Bekalu Kebede
- Clinical Pharmacy Unit, Department of Pharmacy, College of Health Sciences, Debre Markos University, Debre Markos, Ethiopia
| |
Collapse
|
4
|
Kuguyo O, Dube Mandishora RS, Thomford NE, Makunike-Mutasa R, Nhachi CFB, Matimba A, Dandara C. High-risk HPV genotypes in Zimbabwean women with cervical cancer: Comparative analyses between HIV-negative and HIV-positive women. PLoS One 2021; 16:e0257324. [PMID: 34582476 PMCID: PMC8478215 DOI: 10.1371/journal.pone.0257324] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 08/30/2021] [Indexed: 01/03/2023] Open
Abstract
BACKGROUND High-risk human papillomavirus HPV (HR-HPV) modifies cervical cancer risk in people living with HIV, yet African populations are under-represented. We aimed to compare the frequency, multiplicity and consanguinity of HR-HPVs in HIV-negative and HIV-positive Zimbabwean women. METHODS This was a cross-sectional study consisting of women with histologically confirmed cervical cancer attending Parirenyatwa Group of Hospitals in Harare, Zimbabwe. Information on HIV status was also collected for comparative analysis. Genomic DNA was extracted from 258 formalin fixed paraffin embedded tumour tissue samples, and analysed for 14 HR-HPV genotypes. Data was analysed using Graphpad Prism and STATA. RESULTS Forty-five percent of the cohort was HIV-positive, with a median age of 51 (IQR = 42-62) years. HR-HPV positivity was detected in 96% of biospecimens analysed. HPV16 (48%), was the most prevalent genotype, followed by HPV35 (26%), HPV18 (25%), HPV58 (11%) and HPV33 (10%), irrespective of HIV status. One third of the cohort harboured a single HPV infection, and HPV16 (41%), HPV18 (21%) and HPV35 (21%) were the most prevalent. HIV status did not influence the prevalence and rate of multiple HPV infections (p>0.05). We reported significant (p<0.05) consanguinity of HPV16/18 (OR = 0.3; 95% CI = 0.1-0.9), HPV16/33 (OR = 0.3; 95% CI = 0.1-1.0), HPV16/35 (OR = 3.3; 95% CI = 2.0-6.0), HPV35/51 (OR = 6.0; 95%CI = 1.8-15.0); HPV39/51 (OR = 6.4; 95% CI = 1.8-15), HPV31/52 (OR = 6.2; 95% CI = 1.8-15), HPV39/56 (OR = 11 95% CI = 8-12), HPV59/68 (OR = 8.2; 95% CI = 5.3-12.4), HPV66/68 (OR = 7; 95% CI = 2.4-13.5), independent of age and HIV status. CONCLUSION We found that HIV does not influence the frequency, multiplicity and consanguinity of HR-HPV in cervical cancer. For the first time, we report high prevalence of HPV35 among women with confirmed cervical cancer in Zimbabwe, providing additional evidence of HPV diversity in sub-Saharan Africa. The data obtained here probes the need for larger prospective studies to further elucidate HPV diversity and possibility of selective pressure on genotypes.
Collapse
Affiliation(s)
- Oppah Kuguyo
- Department of Clinical Pharmacology, University of Zimbabwe College of Health Sciences, Harare, Zimbabwe
- Division of Human Genetics, Department of Pathology, Pharmacogenomics and Drug Metabolism Group, Institute of Infectious Diseases and Molecular Medicine, University of Cape Town, Observatory, Cape Town, South Africa
| | - Racheal S. Dube Mandishora
- Faculty of Health Sciences, Department of Medical Microbiology Unit, University of Zimbabwe College of Health Sciences, Harare Zimbabwe University of Zimbabwe, Medical Microbiology Unit, Harare, Zimbabwe
- Early Detection, Prevention and Infections Branch, International Agency for Research on Cancer, Lyon, France
| | - Nicholas Ekow Thomford
- Division of Human Genetics, Department of Pathology, Pharmacogenomics and Drug Metabolism Group, Institute of Infectious Diseases and Molecular Medicine, University of Cape Town, Observatory, Cape Town, South Africa
- Department of Medical Biochemistry, School of Medical Sciences, College of Health and Allied Sciences, University of Cape Coast, Cape Coast, PMB, Ghana
| | - Rudo Makunike-Mutasa
- Department of Pathology, University of Zimbabwe College of Health Sciences, Harare, Zimbabwe
| | - Charles F. B. Nhachi
- Department of Clinical Pharmacology, University of Zimbabwe College of Health Sciences, Harare, Zimbabwe
| | - Alice Matimba
- Advanced Courses and Scientific Conferences, Wellcome Genome Campus, Hinxton, United Kingdom
| | - Collet Dandara
- Division of Human Genetics, Department of Pathology, Pharmacogenomics and Drug Metabolism Group, Institute of Infectious Diseases and Molecular Medicine, University of Cape Town, Observatory, Cape Town, South Africa
| |
Collapse
|
5
|
Dlamini Z, Mbele M, Makhafola TJ, Hull R, Marima R. HIV-Associated Cancer Biomarkers: A Requirement for Early Diagnosis. Int J Mol Sci 2021; 22:ijms22158127. [PMID: 34360891 PMCID: PMC8348540 DOI: 10.3390/ijms22158127] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 07/18/2021] [Accepted: 07/19/2021] [Indexed: 02/07/2023] Open
Abstract
Globally, HIV/AIDS and cancer are increasingly public health problems and continue to exist as comorbidities. The sub-Saharan African region has the largest number of HIV infections. Malignancies previously associated with HIV/AIDS, also known as the AIDS-defining cancers (ADCs) have been documented to decrease, while the non-AIDS defining cancer (NADCs) are on the rise. On the other hand, cancer is a highly heterogeneous disease and precision oncology as the most effective cancer therapy is gaining attraction. Among HIV-infected individuals, the increased risk for developing cancer is due to the immune system of the patient being suppressed, frequent coinfection with oncogenic viruses and an increase in risky behavior such as poor lifestyle. The core of personalised medicine for cancer depends on the discovery and the development of biomarkers. Biomarkers are specific and highly sensitive markers that reveal information that aid in leading to the diagnosis, prognosis and therapy of the disease. This review focuses mainly on the risk assessment, diagnostic, prognostic and therapeutic role of various cancer biomarkers in HIV-positive patients. A careful selection of sensitive and specific HIV-associated cancer biomarkers is required to identify patients at most risk of tumour development, thus improving the diagnosis and prognosis of the disease.
Collapse
|
6
|
Wen YF, Chen MX, Yin G, Lin R, Zhong YJ, Dong QQ, Wong HM. The global, regional, and national burden of cancer among adolescents and young adults in 204 countries and territories, 1990-2019: a population-based study. J Hematol Oncol 2021; 14:89. [PMID: 34108026 PMCID: PMC8191013 DOI: 10.1186/s13045-021-01093-3] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 05/19/2021] [Indexed: 12/09/2022] Open
Abstract
BACKGROUND Accurate appraisal of burden of adolescents and young adults (AYAs) cancers is crucial to informing resource allocation and policy making. We report on the latest estimates of burden of AYA cancers in 204 countries and territories between 1990 and 2019 in association with socio-demographic index (SDI). PATIENTS AND METHODS Estimates from the Global Burden of Disease study 2019 were used to analyse incidence, mortality, and disability-adjusted life years (DALYs) due to AYA cancers at global, regional, and national levels by sex. Association between AYA cancer burden and SDI were investigated. Burdens of AYA cancers were contextualized in comparison with childhood and older adult cancers. All estimates are reported as counts and age-standardized rates per 100,000 person-years. RESULTS In 2019, there were 1.2 million incident cases, 0.4 million deaths, and 23.5 million DALYs due to AYA cancers globally. The highest age-standardized incidence rate occurred in Western Europe (75.3 [Females] and 67.4 [Males] per 100,000 person-years). Age-standardized death (23.2 [Females] and 13.9 [Males] per 100,000 person-years) and DALY (1328.3 [Females] and 1059.2 [Males] per 100,000 person-years) rates were highest in Oceania. Increasing SDI was associated with a higher age-standardized incidence rate. An inverted U-shaped association was identified between SDI and death and DALY rates. AYA cancers collectively is the second leading cause of non-communicable diseases-related deaths globally in 2019. DALYs of AYA cancers ranked the second globally and the first in low and low-middle SDI locations when compared with that of childhood and older adult cancers. CONCLUSION The global burden of AYA cancers is substantial and disproportionally affect populations in limited-resource settings. Capacity building for AYA cancers is essential in promoting equity and population health worldwide.
Collapse
Affiliation(s)
- Yi Feng Wen
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, China
| | - Meng Xuan Chen
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, China
| | - Guosheng Yin
- Department of Statistics and Actuarial Science, The University of Hong Kong, Pok Fu Lam, Hong Kong
| | - Ruitao Lin
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - Yu Jie Zhong
- Department of Pulmonary and Critical Care Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Qian Qian Dong
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, China
| | - Hai Ming Wong
- Paediatric Dentistry and Orthodontics, Faculty of Dentistry, The University of Hong Kong, 34 Hospital Road, Pok Fu Lam, Hong Kong.
| |
Collapse
|
7
|
Macharia LW, Mureithi MW, Anzala O. Cancer in Kenya: types and infection-attributable. Data from the adult population of two National referral hospitals (2008-2012). AAS Open Res 2019; 1:25. [PMID: 32382698 PMCID: PMC7185250 DOI: 10.12688/aasopenres.12910.5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/04/2019] [Indexed: 12/16/2022] Open
Abstract
Background: Cancer in Africa is an emerging health problem. In Kenya it ranks third as a cause of death after infectious and cardiovascular diseases. Nearly 31% of the total cancer burden in sub-Saharan Africa is attributable to infectious agents. Information on cancer burden is scanty in Kenya and this study aimed to provide comprehensive hospital based data to inform policies. Method: A cross-sectional retrospective survey was conducted at Kenyatta National Hospital (KNH) and Moi Teaching and Referral Hospital (MTRH) from January 2008 to December 2012. Data was obtained from the patients files and the study was approved by the KNH/University of Nairobi and MTRH Ethics and Research Committees. Results: In KNH, the top five cancers were: cervical (62, 12.4%), breast (59, 11.8%), colorectal (31, 6.2%), chronic leukemia (27, 5.4%) and stomach cancer (26, 5.2%). Some 154 (30.8%) of these cancers were associated with infectious agents, while an estimated 138 (27.6%) were attributable to infections. Cancers of the cervix (62, 12.4%), stomach (26, 5.2%) and nasopharynx (17, 3.4%) were the commonest infection-associated cancers. In MTRH, the five common types of cancers were Kaposi's sarcoma (93, 18.6%), breast (77, 15.4%), cervical (41, 8.2%), non-Hodgkin's lymphoma (37, 7.4%) and colorectal, chronic leukemia and esophageal cancer all with 27 (5.4%). Some 241 (48.2%) of these cancers were associated with infectious agents, while an estimated 222 (44.4%) were attributable to infections. Kaposi's sarcoma (93, 18.6%), cancer of the cervix (41, 8.2%) and non-Hodgkin's lymphoma (37, 7.4%) were the commonest infection-associated cancers. Conclusion: Our results suggest that 30.8% and 48.2% of the total cancer cases sampled in KNH and MTRH respectively were associated with infectious agents, while 27.6% and 44.4% were attributable to infections in the two hospitals respectively. Reducing the burden of infection-attributable cancers can translate to a reduction of the overall cancer burden.
Collapse
Affiliation(s)
- Lucy Wanjiku Macharia
- Department of medical Microbiology, Faculty of Medicine, University of Nairobi, Nairobi, Kenya
| | - Marianne Wanjiru Mureithi
- Department of medical Microbiology, Faculty of Medicine, University of Nairobi, Nairobi, Kenya
- KAVI-Institute of Clinical Research (KAVI-ICR), College of Health Sciences, University of Nairobi, Nairobi, Kenya
| | - Omu Anzala
- Department of medical Microbiology, Faculty of Medicine, University of Nairobi, Nairobi, Kenya
- KAVI-Institute of Clinical Research (KAVI-ICR), College of Health Sciences, University of Nairobi, Nairobi, Kenya
| |
Collapse
|
8
|
Ndlovu SR, Kuupiel D, Ginindza TG. Mapping evidence on the distribution of paediatric cancers in sub-Saharan Africa: a scoping review protocol. Syst Rev 2019; 8:262. [PMID: 31699138 PMCID: PMC6836462 DOI: 10.1186/s13643-019-1184-4] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Accepted: 10/07/2019] [Indexed: 12/04/2022] Open
Abstract
BACKGROUND Paediatric cancers account for a minor fraction of deaths and hence receive little attention from policymakers. In low-income countries, the absence of comprehensive national paediatric strategies results in a lack of access for a majority of children with cancer. In sub-Saharan Africa (SSA), the burden of childhood cancers is underestimated due to a lack of paediatric cancer registries, poor health care systems and competing healthcare needs. The objective of this study is to map evidence on the distribution of paediatric cancers in the SSA region. METHOD A scoping review will be conducted to map literature on the distribution of paediatric cancers in SSA. An electronic literature search will be conducted from the following databases: PubMed, Google Scholar, EBSCOhost (CINAHL and Health Source) and World Health Organization (WHO)/International Agency for Research in Cancer (IARC) (GLOBOCAN databases). We will also search the reference lists of included studies to source relevant literature. A pilot search was conducted to determine the feasibility of the study. Study selection will be guided by the inclusion and exclusion criteria. After charting the data, a descriptive overview of the studies will be presented in a narrative format. An account of the study characteristics will be described in this narrative. The analysis will be mainly based on mapping the country-specific outcomes emerging from the studies, and a numerical summary of these outcomes will be conducted. Tables, maps and charts will be produced and presented in the result section. DISCUSSION This review study will identify existing research gaps for future research to influence policy implementation and to improve the availability of diagnosis and treatment of paediatric cancers in SSA.
Collapse
Affiliation(s)
- Sehlisiwe R Ndlovu
- Discipline of Public Health Medicine, School of Nursing and Public Health, University of KwaZulu-Natal, Durban, South Africa.
| | - Desmond Kuupiel
- Discipline of Public Health Medicine, School of Nursing and Public Health, University of KwaZulu-Natal, Durban, South Africa
| | - Themba G Ginindza
- Discipline of Public Health Medicine, School of Nursing and Public Health, University of KwaZulu-Natal, Durban, South Africa
| |
Collapse
|
9
|
Macharia LW, Mureithi MW, Anzala O. Cancer in Kenya: types and infection-attributable. Data from the adult population of two National referral hospitals (2008-2012). AAS Open Res 2019; 1:25. [PMID: 32382698 PMCID: PMC7185250 DOI: 10.12688/aasopenres.12910.4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/26/2019] [Indexed: 11/14/2023] Open
Abstract
Background: Cancer in Africa is an emerging health problem. In Kenya it ranks third as a cause of death after infectious and cardiovascular diseases. Nearly 31% of the total cancer burden in sub-Saharan Africa is attributable to infectious agents. Information on cancer burden is scanty in Kenya and this study aimed to provide comprehensive hospital based data to inform policies. Method: A cross-sectional retrospective survey was conducted at Kenyatta National Hospital (KNH) and Moi Teaching and Referral Hospital (MTRH) from January 2008 to December 2012. Data was obtained from the patients files and the study was approved by the KNH/University of Nairobi and MTRH Ethics and Research Committees. Results: In KNH, the top five cancers were: cervical (62, 12.4%), breast (59, 11.8%), colorectal (31, 6.2%), chronic leukemia (27, 5.4%) and stomach cancer 26 (5.2%). Some 154 (30.8%) of these cancers were associated with infectious agents, while an estimated 138 (27.6%) were attributable to infections. Cancers of the cervix (62, 12.4%), stomach (26, 5.2%) and nasopharynx (17, 3.4%) were the commonest infection-associated cancers. In MTRH, the five common types of cancers were Kaposi's sarcoma (93, 18.6%), breast (77, 15.4%), cervical (41, 8.2%), non-Hodgkin's lymphoma (37, 7.4%) and colorectal, chronic leukemia and esophageal cancer all with 27 (5.4%). Some 241 (48.2%) of these cancers were associated with infectious agents, while an estimated 222 (44.4%) were attributable to infections. Kaposi's sarcoma (93, 18.6%), cancer of the cervix (41, 8.2%) and non-Hodgkin's lymphoma (37, 7.4%) were the commonest infection-associated cancers. Conclusion: Our results suggest that 30.8% and 48.2% of the total cancer cases sampled in KNH and MTRH respectively were associated with infectious agents, while 27.6% and 44.4% were attributable to infections in the two hospitals respectively. Reducing the burden of infection-attributable cancers can translate to a reduction of the overall cancer burden.
Collapse
Affiliation(s)
- Lucy Wanjiku Macharia
- Department of medical Microbiology, Faculty of Medicine, University of Nairobi, Nairobi, Kenya
| | - Marianne Wanjiru Mureithi
- Department of medical Microbiology, Faculty of Medicine, University of Nairobi, Nairobi, Kenya
- KAVI-Institute of Clinical Research (KAVI-ICR), College of Health Sciences, University of Nairobi, Nairobi, Kenya
| | - Omu Anzala
- Department of medical Microbiology, Faculty of Medicine, University of Nairobi, Nairobi, Kenya
- KAVI-Institute of Clinical Research (KAVI-ICR), College of Health Sciences, University of Nairobi, Nairobi, Kenya
| |
Collapse
|
10
|
Adamu DB, Robertson N, Weller D, Campbell C. Implementation and Effectiveness of community-based resources to increase cervical cancer screening uptake among women living in sub-Saharan Africa: A protocol for systematic review. JOURNAL OF GLOBAL HEALTH REPORTS 2019. [DOI: 10.29392/joghr.3.e2019050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
|
11
|
Dhokotera T, Bohlius J, Spoerri A, Egger M, Ncayiyana J, Olago V, Singh E, Sengayi M. The burden of cancers associated with HIV in the South African public health sector, 2004-2014: a record linkage study. Infect Agent Cancer 2019; 14:12. [PMID: 31073325 PMCID: PMC6500038 DOI: 10.1186/s13027-019-0228-7] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Accepted: 04/17/2019] [Indexed: 01/10/2023] Open
Abstract
INTRODUCTION The impact of South Africa's high human immunodeficiency virus (HIV) burden on cancer risk is not fully understood, particularly in the context of antiretroviral treatment (ART) availability. We examined national cancer trends and excess cancer risk in people living with HIV (PLHIV) compared to those who are HIV-negative. METHODS We used probabilistic record linkage to match cancer records provided by the National Cancer Registry to HIV data provided by the National Health Laboratory Service (NHLS). We also used text search of specific HIV terms from the clinical section of pathology reports to determine HIV status of cancer patients. We used logistic and Joinpoint regression models to evaluate the risk and trends in cancers in PLHIV compared to HIV-negative patients from 2004 to 2014. In sensitivity analysis, we used inverse probability weighting (IPW) to correct for possible selection bias. RESULTS A total of 329,208 cancer cases from public sector laboratories were reported to the NCR from 2004 to 2014 with the HIV status known for 95,279 (28.9%) cancer cases. About 50% of all the female cancer cases (n = 30,486) with a known status were HIV-positive. PLHIV were at higher risk of AIDS-defining cancers (Kaposi sarcoma [adjusted OR:134, 95% CI:111-162], non-Hodgkin lymphoma [adjusted OR:2.73, 95% CI:2.56-2.91] and, cervix [adjusted OR:1.70, 95% CI:1.63-1.77], conjunctival cancer [adjusted OR:21.5, 95% CI:16.3-28.4] and human papilloma virus (HPV) related cancers (including; penis [adjusted OR:2.35, 95% CI:1.85-2.99], and vulva [adjusted OR:1.94, 95% CI:1.67-2.25]) compared to HIV-negative patients. Analysis using the IPW population yielded comparable results. CONCLUSION There is need for improved awareness and screening of conjunctival cancer and HPV-associated cancers at HIV care centres. Further research and discussion is warranted on inclusive HPV vaccination in PLHIV.
Collapse
Affiliation(s)
- Tafadzwa Dhokotera
- National Cancer Registry, National Health Laboratory Service, Johannesburg, South Africa
- Division of Epidemiology and Biostatistics, School of Public Health, University of the Witwatersrand, Johannesburg, South Africa
| | - Julia Bohlius
- Institute of Social and Preventive Medicine (ISPM), University of Bern, Bern, Switzerland
| | - Adrian Spoerri
- Institute of Social and Preventive Medicine (ISPM), University of Bern, Bern, Switzerland
| | - Matthias Egger
- Institute of Social and Preventive Medicine (ISPM), University of Bern, Bern, Switzerland
- Centre for Infectious Disease Epidemiology and Research (CIDER), School of Public Health and Family Medicine, University of Cape Town, Cape Town, South Africa
| | - Jabulani Ncayiyana
- Division of Epidemiology and Biostatistics, School of Public Health, University of the Witwatersrand, Johannesburg, South Africa
- Division of Epidemiology and Biostatistics, School of Public Health and Family Medicine, University of Cape Town, Cape Town, South Africa
| | - Victor Olago
- National Cancer Registry, National Health Laboratory Service, Johannesburg, South Africa
- Division of Epidemiology and Biostatistics, School of Public Health, University of the Witwatersrand, Johannesburg, South Africa
| | - Elvira Singh
- National Cancer Registry, National Health Laboratory Service, Johannesburg, South Africa
- Division of Epidemiology and Biostatistics, School of Public Health, University of the Witwatersrand, Johannesburg, South Africa
| | - Mazvita Sengayi
- National Cancer Registry, National Health Laboratory Service, Johannesburg, South Africa
- Division of Epidemiology and Biostatistics, School of Public Health, University of the Witwatersrand, Johannesburg, South Africa
| |
Collapse
|
12
|
Macharia LW, Mureithi MW, Anzala O. Cancer in Kenya: types and infection-attributable. Data from two National referral hospitals. AAS Open Res 2019; 1:25. [PMID: 32382698 PMCID: PMC7185250 DOI: 10.12688/aasopenres.12910.3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/28/2019] [Indexed: 11/14/2023] Open
Abstract
Background: Cancer in Africa is an emerging health problem. In Kenya it ranks third as a cause of death after infectious and cardiovascular diseases. Nearly 31% of the total cancer burden in sub-Saharan Africa is attributable to infectious agents. Information on cancer burden is scanty in Kenya and this study aimed to provide comprehensive hospital based data to inform policies. Method: A cross-sectional retrospective survey was conducted at Kenyatta National Hospital (KNH) and Moi Teaching and Referral Hospital (MTRH) from 2008 to 2012. Data was obtained from the patients files and the study was approved by the KNH/University of Nairobi and MTRH Ethics and Research Committees. Results: In KNH, the top five cancers were: cervical (62, 12.4%), breast (59, 11.8%), colorectal (31, 6.2%), chronic leukemia (27, 5.4%) and stomach cancer 26 (5.2%). Some 154 (30.8%) of these cancers were associated with infectious agents, while an estimated 138 (27.6%) were attributable to infections. Cancers of the cervix (62, 12.4%), stomach (26, 5.2%) and nasopharynx (17, 3.4%) were the commonest infection-associated cancers. In MTRH, the five common types of cancers were Kaposi's sarcoma (93, 18.6%), breast (77, 15.4%), cervical (41, 8.2%), non-Hodgkin's lymphoma (37, 7.4%) and colorectal, chronic leukemia and esophageal cancer all with 27 (5.4%). Some 241 (48.2%) of these cancers were associated with infectious agents, while an estimated 222 (44.4%) were attributable to infections. Kaposi's sarcoma (93, 18.6%), cancer of the cervix (41, 8.2%) and non-Hodgkin's lymphoma (37, 7.4%) were the commonest infection-associated cancers. Conclusion: Our results suggest that 30.8% and 48.2% of the total cancer cases sampled in KNH and MTRH respectively were associated with infectious agents, while 27.6% and 44.4% were attributable to infections in the two hospitals respectively. Reducing the burden of infection-attributable cancers can translate to a reduction of the overall cancer burden.
Collapse
Affiliation(s)
- Lucy Wanjiku Macharia
- Department of medical Microbiology, Faculty of Medicine, University of Nairobi, Nairobi, Kenya
| | - Marianne Wanjiru Mureithi
- Department of medical Microbiology, Faculty of Medicine, University of Nairobi, Nairobi, Kenya
- KAVI-Institute of Clinical Research (KAVI-ICR), College of Health Sciences, University of Nairobi, Nairobi, Kenya
| | - Omu Anzala
- Department of medical Microbiology, Faculty of Medicine, University of Nairobi, Nairobi, Kenya
- KAVI-Institute of Clinical Research (KAVI-ICR), College of Health Sciences, University of Nairobi, Nairobi, Kenya
| |
Collapse
|
13
|
Awolude OA, Oyerinde SO. INVASIVE CERVICAL CANCER IN IBADAN: SOCIO-SEXUAL CHARACTERISTICS, CLINICAL STAGE AT PRESENTATION, HISTOPATHOLOGY DISTRIBUTIONS AND HIV STATUS. Afr J Infect Dis 2019; 13:32-38. [PMID: 30596194 PMCID: PMC6305076 DOI: 10.21010/ajid.v13i1.4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2017] [Revised: 05/23/2018] [Accepted: 05/26/2018] [Indexed: 01/20/2023] Open
Abstract
Background: Human Papillomavirus (HPV) infection persistence is the necessary but not sufficient cause of invasive cervical cancer (ICC). The effects of Human Immunodeficiency Virus (HIV) co-infection have been well documented. The purpose of this study was to describe our experience on the clinico-pathological characteristics of patients with cervical cancer and HIV status at a tertiary Hospital in Nigeria. Materials and Methods: This was a descriptive study among ICC patients presenting for clinical staging and biopsy for histological diagnosis at the Obstetrics and Gynaecology outpatient theatre of our hospital between January 2009 and February 2011. Results: Sixteen (6.8%) of the 248 patients with histologically confirmed ICC in this study were HIV positive. The mean age of all the participants was 55.4 (SD±10.2) years with the HIV positive patients’ younger than the HIV-negative and those that declined HIV testing. Coitarche was at lower age (18 [SD±4.4] vs 22[SD±3.4] years vs 24.5[SD±4.4], respectively). The modal lifetime sexual partners were four, one and two, respectively. Clinically, more HIV positive patients, presented at advanced stage of ≥ 2B. Also, the adenocarcinoma histological variant was slightly more among the HIV positive patients. Conclusion: HIV seemed relatively common among ICC patients and they presented at lower ages, at more advanced stages, earlier coitarche and more lifetime sexual partners. The proportion of adenocarcinoma histological types was slightly higher among the HIV positive patients compared with seronegative patients and those with unknown HIV status. Larger studies to substantiate these findings and ICC-HIV causal relationship are required.
Collapse
Affiliation(s)
- Olutosin A Awolude
- Department of Obstetrics and Gynaecology, College of Medicine, University of Ibadan/ University College Hospital, Ibadan, Nigeria
| | - Sunday O Oyerinde
- Department of Obstetrics and Gynaecology, University College Hospital, Ibadan, Nigeria
| |
Collapse
|
14
|
Ebogo-Belobo JT, Kagoué Simeni LA, Mbassa Nnouma G, Lawan Loubou M, Abamé I, Tchuisseu Hapi A, Dooh Ngalle S, Hemerode Mbock S, Mpondi Ngole Etame M, Atenguena Okobalemba E. Incidence of cancer in people living with HIV and prognostic value of current CD4 . Bull Cancer 2018; 106:201-205. [PMID: 30502923 DOI: 10.1016/j.bulcan.2018.11.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 09/20/2018] [Accepted: 11/01/2018] [Indexed: 01/15/2023]
Abstract
BACKGROUND Although Sub-Saharan Africa accounts for 71% of the people living with Human Immunodeficiency Virus (HIV) worldwide and Cameroon accounts for about 2% of them, the role of HIV-induced immunodeficiency and exposure to Antiretroviral Therapy (ART) in the occurrence of cancers in Cameroon has scarcely been examined. The aim of our study was to determine the incidence of cancers in HIV patients and to determine the role of CD4+cell count in the onset of cancers. METHODS A retrospective cohort study was carried out from medical records of people confirmed to be HIV-positive from 01 July 2003 to 30 April 2013. Potential risk factors were studied by Cox proportional hazards model. RESULTS A total of 1768 patients were included in the analysis and 53 cases of cancer were diagnosed with an incidence rate of 7.4 per 1000 person-year of follow-up (95% CI; 5.4-9.4 per 1000 person-years of follow-up). Immunosuppression and exposure to ART were identified as factors associated with the occurrence of cancers in this population. Current CD4+cell count was the most important risk factor for cancer. Risk of cancer ranged from 15.51 (95% CI; 5.45-44.1; P<0.001) for a CD4+ cell count<50 cells/mm3 to 2.87 (95% CI; 1.14-7.2; P=0.025) for a CD4+ level between 350-499 cells/mm3. CONCLUSION Our study showed that the incidence rate of cancers is high among HIV patients in Cameroon. This incidence seems to correlate positively with the latest CD4+cell count and negatively with initiation of antiretroviral treatment.
Collapse
Affiliation(s)
- Jean-Thierry Ebogo-Belobo
- School of Health Sciences, Unite of Microbiology-immunology, Central African Catholic University, PB 11628, Yaounde, Cameroon; Institute of Medical Research and Medicinal Plant Study, PB 13033, Yaoundé, Cameroon.
| | - Luc-Aimé Kagoué Simeni
- School of Health Sciences, Unite of Microbiology-immunology, Central African Catholic University, PB 11628, Yaounde, Cameroon
| | - Gregoire Mbassa Nnouma
- School of Health Sciences, Unite of Microbiology-immunology, Central African Catholic University, PB 11628, Yaounde, Cameroon
| | | | - Idrissa Abamé
- School of Health Sciences, Unite of Microbiology-immunology, Central African Catholic University, PB 11628, Yaounde, Cameroon
| | - Aurelie Tchuisseu Hapi
- School of Health Sciences, Unite of Microbiology-immunology, Central African Catholic University, PB 11628, Yaounde, Cameroon
| | - Sabine Dooh Ngalle
- School of Health Sciences, Unite of Microbiology-immunology, Central African Catholic University, PB 11628, Yaounde, Cameroon
| | - Sorelle Hemerode Mbock
- School of Health Sciences, Unite of Microbiology-immunology, Central African Catholic University, PB 11628, Yaounde, Cameroon
| | | | | |
Collapse
|
15
|
Macharia LW, Mureithi MW, Anzala O. Burden of cancer in Kenya: types, infection-attributable and trends. A national referral hospital retrospective survey. AAS Open Res 2018; 1:25. [PMID: 32382698 PMCID: PMC7185250 DOI: 10.12688/aasopenres.12910.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/08/2018] [Indexed: 11/14/2023] Open
Abstract
Background: Cancer in Africa is an emerging health problem. In Kenya it ranks third as a cause of death after infectious and cardiovascular diseases. Nearly 31% of the total cancer burden in sub-Saharan Africa is attributable to infectious agents. Information on cancer burden is scanty in Kenya and this study aimed to provide comprehensive hospital based data to inform policies. Method: A cross-sectional retrospective survey was conducted at Kenyatta National Hospital (KNH) and Moi Teaching and Referral Hospital (MTRH) from 2008 to 2012. Data was obtained from the patients files and the study was approved by the KNH/University of Nairobi and MTRH Ethics and Research Committees. Results: In KNH, the top five cancers were: cervical (62, 12.4%), breast (59, 11.8%), colorectal (31, 6.2%), chronic leukemia (27, 5.4%) and stomach cancer 26 (5.2%). Some 154 (30.8%) of these cancers were associated with infectious agents, while an estimated 138 (27.6%) were attributable to infections. Cancers of the cervix (62, 12.4%), stomach (26, 5.2%) and nasopharynx (17, 3.4%) were the commonest infection-associated cancers. In MTRH, the five common types of cancers were Kaposi's sarcoma (93, 18.6%), breast (77, 15.4%), cervical (41, 8.2%), non-Hodgkin's lymphoma (37, 7.4%) and colorectal, chronic leukemia and esophageal cancer all with 27 (5.4%). Some 241 (48.2%) of these cancers were associated with infectious agents, while an estimated 222 (44.4%) were attributable to infections. Kaposi's sarcoma (93, 18.6%), cancer of the cervix (41, 8.2%) and non-Hodgkin's lymphoma (37, 7.4%) were the commonest infection-associated cancers. Conclusion: Our results suggest that 30.8% and 48.2% of the total cancer cases sampled in KNH and MTRH respectively were associated with infectious agents, while 27.6% and 44.4% were attributable to infections in the two hospitals respectively. Reducing the burden of infection-attributable cancers can translate to a reduction of the overall cancer burden.
Collapse
Affiliation(s)
- Lucy Wanjiku Macharia
- Department of medical Microbiology, Faculty of Medicine, University of Nairobi, Nairobi, Kenya
| | - Marianne Wanjiru Mureithi
- Department of medical Microbiology, Faculty of Medicine, University of Nairobi, Nairobi, Kenya
- KAVI-Institute of Clinical Research (KAVI-ICR), College of Health Sciences, University of Nairobi, Nairobi, Kenya
| | - Omu Anzala
- Department of medical Microbiology, Faculty of Medicine, University of Nairobi, Nairobi, Kenya
- KAVI-Institute of Clinical Research (KAVI-ICR), College of Health Sciences, University of Nairobi, Nairobi, Kenya
| |
Collapse
|
16
|
Hodgkin lymphoma at Groote Schuur Hospital, South Africa: the effect of HIV and bone marrow infiltration. Ann Hematol 2018; 98:381-389. [PMID: 30397846 DOI: 10.1007/s00277-018-3533-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Accepted: 10/19/2018] [Indexed: 12/14/2022]
Abstract
Human immunodeficiency virus (HIV) is associated with an increased risk of developing Hodgkin lymphoma (HL). South Africa (SA) has the highest HIV prevalence rate in the world. There is currently no outcome-based data for HIV-associated HL from SA. A bone marrow database was compiled of all bone marrow biopsies (BMB) reported at National Health Laboratory Service (NHLS) Groote Schuur Hospital (GSH) between January 2005 and December 2012. Patients who had a BMB performed for staging of HL or where HL was diagnosed on the BMB were included for further analysis. Clinical and laboratory data was extracted from medical and laboratory records. Primary outcome measures included histological subtype, bone marrow infiltration (BMI) by HL, CD4 count, HIV-viral load (HIV-VL), tuberculosis (TB) data, treatment with chemotherapy and 5-year overall survival (OS). The database included 6569 BMB and 219 patients of these had HL and were included for analysis. The median age at presentation (32 years) was similar in the HIV+ and HIV- populations. While males predominated in the HIV- group, females predominated in the HIV+ group (male:female ratio of 1.5:1 vs 0.7:1, respectively). The majority of patients (71%) were HIV negative (HIV-) and 29% were HIV positive (HIV+). The diagnosis of HL was made on BMB in 17% of cases. BMI was seen in 37% (82/219) overall, and was found in more HIV+ patients (61%; 39/64) than HIV- patients (28%; 43/155; p = 0.03). The histological subtype varied according to HIV status with nodular sclerosis classical Hodgkin lymphoma (NSCHL) being most frequent in the HIV- group and classical Hodgkin lymphoma (CHL)-unclassifiable the most frequent in the HIV+ group. HIV+ patients had a median CD4 count of 149 × 106/L and 39% were anti-retroviral therapy (cART) naive at HL diagnosis. HIV+ patients had received anti-TB therapy more frequently than HIV- patients (72% vs 17%; p = 0.007). More HIV+ patients did not receive chemotherapy than HIV- patients (31% vs 3%; p = 0.001). The 5-year OS was 56%. HIV+ patients with BMI had a 5-year OS of 18%. BMI, HIV status, low CD4 count, histological subtype and TB therapy had a statistical significant impact on 5-year OS (p < 0.01). The 5-year OS was 56%, with both BMI and HIV+ status being associated with poor survival. BMB provided the diagnosis of HL in 17% of cases, confirming its diagnostic utility in our setting. Our cohort showed similar survival outcomes to other countries in Africa, Asia and Central America with comparable socio-economic constraints to SA.
Collapse
|
17
|
Macharia LW, Mureithi MW, Anzala O. Burden of cancer in Kenya: types, infection-attributable and trends. A national referral hospital retrospective survey. AAS Open Res 2018; 1:25. [PMID: 32382698 PMCID: PMC7185250 DOI: 10.12688/aasopenres.12910.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/20/2018] [Indexed: 11/14/2023] Open
Abstract
Background: Cancer in Africa is an emerging health problem. In Kenya it ranks third as a cause of death after infectious and cardiovascular diseases. Approximately 15% of the global cancer burden is attributable to infectious agents, with higher percentages in developing countries. Therefore, this study aimed to provide comprehensive hospital based data to inform policies Method: A retrospective survey was conducted at Kenyatta National Hospital (KNH) and Moi Teaching and Referral Hospital (MTRH) from 2008 to 2012. Data was obtained from the patients files using a pre-designed data collection form. The study was approved by the KNH/University of Nairobi and MTRH Ethics and Research Committees. Results: In KNH, the five most common cancers in females (n=300) were cervical 62 (20.7%), breast 59 (19.7%), ovarian 22 (7.3%), chronic leukemia 16 (5.3%), endometrial and gastric both with 15 (5%). In males (n=200) they were prostate 23 (11.5%), laryngeal 19 (9.5%), colorectal 17 (8.5%), esophageal 14 (7.0%) and nasopharyngeal carcinoma 12 (6%). The top infection-attributable cancers were: cervical 62 (12.4%), colorectal 31 (6.2%), gastric 26 (5.2%), prostate 23 (4.6%) and nasopharyngeal carcinoma 17 (3.4%). In contrast, in MTRH the five most common cancers in females (n=282) were breast cancer 74 (26.2%), cervical 41 (14.5%), Kaposi's sarcoma 38 (13.5%), non-Hodgkin's lymphoma 15(5.3%) and ovarian 14 (5%) while in males (n=218) they were Kaposi's sarcoma 55 (25.2%), non-Hodgkin's lymphoma 22 (10.1%), chronic leukemia 17 (7.8%), colorectal and esophageal cancers both with 16 (7.3%). The top infection-attributable cancers were: Kaposi's sarcoma 93 (18.6%), cervical 41 (8.2%), non-Hodgkin's lymphoma 37 (7.4%), colorectal 27 (5.4%) and liver cancer 16 (3.2%). Conclusion: This study presents a picture of the burden of cancer and infection-attributable cancer from two referral hospitals in Kenya. Reducing the burden of infection-attributable cancers can translate to a reduction of the overall cancer burden.
Collapse
Affiliation(s)
- Lucy Wanjiku Macharia
- Department of medical Microbiology, Faculty of Medicine, University of Nairobi, Nairobi, Kenya
| | - Marianne Wanjiru Mureithi
- Department of medical Microbiology, Faculty of Medicine, University of Nairobi, Nairobi, Kenya
- KAVI-Institute of Clinical Research (KAVI-ICR), College of Health Sciences, University of Nairobi, Nairobi, Kenya
| | - Omu Anzala
- Department of medical Microbiology, Faculty of Medicine, University of Nairobi, Nairobi, Kenya
- KAVI-Institute of Clinical Research (KAVI-ICR), College of Health Sciences, University of Nairobi, Nairobi, Kenya
| |
Collapse
|
18
|
Li M, Gan Y, Fan C, Yuan H, Zhang X, Shen Y, Wang Q, Meng Z, Xu D, Tu H. Hepatitis B virus and risk of non-Hodgkin lymphoma: An updated meta-analysis of 58 studies. J Viral Hepat 2018. [PMID: 29532605 DOI: 10.1111/jvh.12892] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Previous studies have focused on the relationship between hepatitis B virus (HBV) infection and non-Hodgkin lymphoma (NHL). However, the results remain inconsistent and somehow conflicting in different subgroups. The aim of this study was to combine the findings of independent studies to comprehensively assess the association between HBV and NHL using a meta-analysis. Relevant studies were identified through structured keyword searches in PubMed, EMBASE and the China National Knowledge Infrastructure (CNKI) database, and 58 studies with a total of 53 714 NHL cases and 1 778 591 controls were finally included. Pooled estimates indicated a significantly increased NHL risk in HBV-infected individuals (summary odds ratio [sOR]: 2.50; 95% confidence interval [CI]: 2.20-2.83) regardless of the study design (case-control studies: sOR: 2.47; 95% CI: 2.16-2.82; cohort studies: sOR: 2.64; 95% CI: 1.78-3.91). Considerable heterogeneity was observed across studies that was primarily attributed to the NHL subtypes (meta-regression: P < .05). Overall, B-cell NHL (sOR: 2.46; 95% CI: 1.97-3.07) presented a stronger association with HBV infection than T-cell NHL (sOR: 1.67; 95% CI: 1.34-2.10). Within the B-cell NHL subtypes, HBV infection was significantly associated with diffuse large B-cell lymphoma (DLBCL, sOR: 2.06; 95% CI: 1.48-2.88) and follicular lymphoma (FL, sOR: 1.54; 95% CI: 1.11-2.12), but not with chronic lymphocytic leukaemia/small lymphocytic lymphoma (CLL/SLL) and Burkitt lymphoma. The results of this meta-analysis support a positive link between HBV infection and NHL development. Further investigations for the mechanisms underlying HBV-induced NHL are warranted.
Collapse
Affiliation(s)
- M Li
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Y Gan
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - C Fan
- Department of Etiology, Qidong People's Hospital/Qidong Liver Cancer Institute, Qidong, China
| | - H Yuan
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - X Zhang
- Shanghai Medical Insurance Affairs Management Center, Shanghai, China
| | - Y Shen
- Department of Head and Neck Surgery, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Q Wang
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Z Meng
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - D Xu
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - H Tu
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| |
Collapse
|
19
|
Möller J, Steyn T, Combrinck N, Joubert G, Sherriff A, van Rensburg JJ. Inter-observer variability influences the Lugano classification when restaging lymphoma. SA J Radiol 2018; 22:1357. [PMID: 31754505 PMCID: PMC6837819 DOI: 10.4102/sajr.v22i1.1357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Accepted: 05/20/2018] [Indexed: 11/28/2022] Open
Abstract
Background Lymphoma is an important and potentially curable oncological disease in South Africa. The staging and restaging of lymphoma have evolved over the years, with the latest international consensus guideline being the Lugano classification (LC). Prior to routine implementation of the LC, its robustness in the local setting should be determined. Objectives To determine the Inter-observer variability in response assignment when applying the LC in patients with lymphoma who were staged and restaged with computed tomography. In case of excessive discordance, specific mitigating measures will have to be taken before and during any proposed implementation of the LC. Method A total of 61 computed tomography scans in 21 patients were evaluated independently by four reviewers according to the LC, of which 21 scans were done at baseline, 21 at initial restaging and 19 at follow-up restaging. A retrospective comparative analysis was performed. Kappa values were calculated to determine agreement between observers. Results Only a moderate inter-observer agreement of 52% in the overall response classification was demonstrated. The most important sources of discrepancy were inconsistency in the assessment of target lesion regression to normal, determining the percentage change in the summed cross-sectional area of the target lesions and ascribing new lesions as either due to lymphoma or other causes. Conclusion Implementing the Lugano classification when restaging lymphoma is desirable to improve consistency and to conform to international guidelines. However, our study shows substantial inter-observer variability in response classification, potentially altering the treatment plan. Dedicated training and continuous quality control should, therefore, accompany the process.
Collapse
Affiliation(s)
- Jacobus Möller
- Department of Clinical Imaging Sciences, Universitas Academic Hospital and University of the Free State, South Africa
| | - Tiaan Steyn
- Department of Clinical Imaging Sciences, Universitas Academic Hospital and University of the Free State, South Africa
| | - Nantes Combrinck
- Department of Clinical Imaging Sciences, Universitas Academic Hospital and University of the Free State, South Africa
| | - Gina Joubert
- Department of Biostatistics, University of the Free State, South Africa
| | - Alicia Sherriff
- Department of Oncology, Universitas Academic Hospital and University of the Free State, South Africa
| | | |
Collapse
|
20
|
Hybrid 2D/3D-quantitative structure-activity relationship and modeling studies perspectives of pepstatin A analogs as cathepsin D inhibitors. Future Med Chem 2017; 10:5-26. [PMID: 29235371 DOI: 10.4155/fmc-2017-0077] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
AIM Cathepsin D, one of the attractive targets in the treatment of breast cancer, has been implicated in HIV neuropathogenesis with potential proteolytic effects on chemokines. Methodology/result: Diverse modeling tools were used to reveal the key structural features affecting the inhibitory activities of 78 pepstatin A analogs. Analyses were performed to investigate the stability, rationality and fluctuation of the analogs. Results showed a clear correlation between the experimental and predicted activities of the analogs as well as the variation in their activities relative to structural modifications. CONCLUSION The insight gained from this study offers theoretical references for understanding the mechanism of action of cathepsin D and will aid in the design of more potent and clinically-relevant drugs. Graphical abstract [Formula: see text].
Collapse
|
21
|
Blumenthal MJ, Ujma S, Katz AA, Schäfer G. The Role of Type 2 Diabetes for the Development of Pathogen-Associated Cancers in the Face of the HIV/AIDS Epidemic. Front Microbiol 2017; 8:2368. [PMID: 29238337 PMCID: PMC5712558 DOI: 10.3389/fmicb.2017.02368] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2017] [Accepted: 11/16/2017] [Indexed: 12/16/2022] Open
Abstract
The contribution of HIV to the development of pathogen-associated cancers has long been recognized, as has the contribution of type 2 diabetes for the development of several types of cancer. While HIV/AIDS-associated immunosuppression reduces immunosurveillance and indirectly contributes favorably to cancerogenesis, diabetes directly increases cancer development due to chronic low-grade inflammation, dysregulated glucose metabolism, hyperactivation of insulin-responsive pathways, and anti-apoptotic signaling. Pathogen-associated cancers contribute significantly to the cancer burden particularly in low- and middle-income countries. In those countries, the incidence of type 2 diabetes has increased alarmingly over the last decades, in part due to rapid changes in diet, lifestyle, and urbanization. It is likely that the HIV/AIDS epidemic and the steadily increasing rate of type 2 diabetes display synergistic effects on oncogenesis. Although this possible link has not been extensively investigated, it might become more important in the years to come not least due to the stimulating effects of antiretroviral therapy on the development of type 2 diabetes. This review provides an overview of the current understanding of pathogen- and diabetes- associated cancers with focus on geographical regions additionally burdened by the HIV/AIDS epidemic. As both HIV and carcinogenic infections as well as the onset of type 2 diabetes involve environmental factors that can be avoided to a certain extent, this review will support the hypothesis that certain malignancies are potentially preventable. Deploying effective infection control strategies together with educational policies on diet and lifestyle may in the long term reduce the burden of preventable cancers which is of particular relevance in low-resource settings.
Collapse
Affiliation(s)
| | | | | | - Georgia Schäfer
- Receptor Biology Research Unit, Division of Medical Biochemistry and Structural Biology, Institute of Infectious Disease and Molecular Medicine, Department of Integrative Biomedical Sciences, Faculty of Health Sciences, SA-MRC Gynecology Cancer Research Centre, University of Cape Town, Cape Town, South Africa
| |
Collapse
|
22
|
McAllister SC, Hanson RL, Grissom KN, Botto S, Moses AV. An In Vitro Model for Studying Cellular Transformation by Kaposi Sarcoma Herpesvirus. J Vis Exp 2017. [PMID: 28872106 DOI: 10.3791/54828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
Kaposi sarcoma (KS) is an unusual tumor composed of proliferating spindle cells that is initiated by infection of endothelial cells (EC) with KSHV, and develops most often in the setting of immunosuppression. Despite decades of research, optimal treatment of KS remains poorly defined and clinical outcomes are especially unfavorable in resource-limited settings. KS lesions are driven by pathological angiogenesis, chronic inflammation, and oncogenesis, and various in vitro cell culture models have been developed to study these processes. KS arises from KSHV-infected cells of endothelial origin, so EC-lineage cells provide the most appropriate in vitro surrogates of the spindle cell precursor. However, because EC have a limited in vitro lifespan, and as the oncogenic mechanisms employed by KSHV are less efficient than those of other tumorigenic viruses, it has been difficult to assess the processes of transformation in primary or telomerase-immortalized EC. Therefore, a novel EC-based culture model was developed that readily supports transformation following infection with KSHV. Ectopic expression of the E6 and E7 genes of human papillomavirus type 16 allows for extended culture of age- and passage-matched mock- and KSHV-infected EC and supports the development of a truly transformed (i.e., tumorigenic) phenotype in infected cell cultures. This tractable and highly reproducible model of KS has facilitated the discovery of several essential signaling pathways with high potential for translation into clinical settings.
Collapse
Affiliation(s)
- Shane C McAllister
- Division of Pediatric Infectious Diseases, University of Minnesota Medical School;
| | - Ryan L Hanson
- Division of Pediatric Infectious Diseases, University of Minnesota Medical School
| | - Kyleen N Grissom
- Division of Pediatric Infectious Diseases, University of Minnesota Medical School
| | - Sara Botto
- Vaccine and Gene Therapy Institute, Oregon Health and Science University
| | - Ashlee V Moses
- Vaccine and Gene Therapy Institute, Oregon Health and Science University;
| |
Collapse
|
23
|
Nkanga MSN, Longo-Mbenza B, Adeniyi OV, Ngwidiwo JB, Katawandja AL, Kazadi PRB, Nzonzila AN. Ageing, exposure to pollution, and interactions between climate change and local seasons as oxidant conditions predicting incident hematologic malignancy at KINSHASA University clinics, Democratic Republic of CONGO (DRC). BMC Cancer 2017; 17:559. [PMID: 28835214 PMCID: PMC5569529 DOI: 10.1186/s12885-017-3547-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Accepted: 08/14/2017] [Indexed: 01/06/2023] Open
Abstract
Background The global burden of hematologic malignancy (HM) is rapidly rising with aging, exposure to polluted environments, and global and local climate variability all being well-established conditions of oxidative stress. However, there is currently no information on the extent and predictors of HM at Kinshasa University Clinics (KUC), DR Congo (DRC). This study evaluated the impact of bio-clinical factors, exposure to polluted environments, and interactions between global climate changes (EL Nino and La Nina) and local climate (dry and rainy seasons) on the incidence of HM. Methods This hospital-based prospective cohort study was conducted at Kinshasa University Clinics in DR Congo. A total of 105 black African adult patients with anaemia between 2009 and 2016 were included. HM was confirmed by morphological typing according to the French-American-British (FAB) Classification System. Gender, age, exposure to traffic pollution and garages/stations, global climate variability (El Nino and La Nina), and local climate (dry and rainy seasons) were potential independent variables to predict incident HM using Cox regression analysis and Kaplan Meier curves. Results Out of the total 105 patients, 63 experienced incident HM, with an incidence rate of 60%. After adjusting for gender, HIV/AIDS, and other bio-clinical factors, the most significant independent predictors of HM were age ≥ 55 years (HR = 2.4; 95% CI 1.4–4.3; P = 0.003), exposure to pollution and garages or stations (HR = 4.9; 95% CI 2–12.1; P < 0.001), combined local dry season + La Nina (HR = 4.6; 95%CI 1.8–11.8; P < 0.001), and combined local dry season + El Nino (HR = 4; 95% CI 1.6–9.7; P = 0.004). HM types included acute myeloid leukaemia (28.6% n = 18), multiple myeloma (22.2% n = 14), myelodysplastic syndromes (15.9% n = 10), chronic myeloid leukaemia (15.9% n = 10), chronic lymphoid leukaemia (9.5% n = 6), and acute lymphoid leukaemia (7.9% n = 5). After adjusting for confounders using Cox regression analysis, age ≥ 55 years, exposure to pollution, combined local dry season + La Nina and combined local dry season + El Nino were the most significant predictors of incident hematologic malignancy. Conclusion These findings highlight the importance of aging, pollution, the dry season, El Nino and La Nina as related to global warming as determinants of hematologic malignancies among African patients from Kinshasa, DR Congo. Cancer registries in DRC and other African countries will provide more robust database for future researches on haematological malignancies in the region.
Collapse
Affiliation(s)
- Mireille Solange Nganga Nkanga
- Département de Biologie Médicale, Service de Biologie Clinique, CUK, Faculté de Médecine, Kinshasa, Democratic Republic of Congo
| | - Benjamin Longo-Mbenza
- Faculty of Health Sciences, Walter Sisulu University, Private Bag X1, 5117, Mthatha, South Africa.
| | - Oladele Vincent Adeniyi
- Cecilia Makiwane Hospital/Walter Sisulu University, Faculty of Health Sciences, East London, South Africa.
| | - Jacques Bikaula Ngwidiwo
- Département de Biologie Médicale, Service de Biologie Clinique, CUK, Faculté de Médecine, Kinshasa, Democratic Republic of Congo
| | - Antoine Lufimbo Katawandja
- Département de Biologie Médicale, Service de Biologie Clinique, CUK, Faculté de Médecine, Kinshasa, Democratic Republic of Congo
| | | | | |
Collapse
|
24
|
Molyneux E, Scanlan T, Chagaluka G, Renner L. Haematological cancers in African children: progress and challenges. Br J Haematol 2017; 177:971-978. [PMID: 28599352 DOI: 10.1111/bjh.14617] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Cancer is increasingly important in low and middle-income settings where infectious diseases are declining. Childhood cancers treated in well-resourced centres have excellent outcomes with more than 80% survival. This success is not reflected in low-income settings where challenges involve every step on the care pathway. Access to diagnosis, delayed presentation, advanced disease, co-morbidities and underlying malnutrition make treatment difficult. Treatments are costly for impoverished families. Yet, the common haematological malignancies (Burkitt lymphoma, Hodgkin lymphoma, non Hodgkin lymphoma) are relatively easy to diagnose and, when managed with simple chemotherapy protocols, give limited but good results. As funding becomes available for cancer research we must ensure that the care and cure of these children is top of the agenda. There is already evidence of improved outcomes in middle-income countries. For others there is a long journey ahead.
Collapse
Affiliation(s)
| | | | | | - Lorna Renner
- University of Ghana School of Medicine and Dentistry, Accra, Ghana
| |
Collapse
|
25
|
Grover S, Martei YM, Puri P, Prabhakar P, Mutebi M, Balogun OD, Price AJ, Freeman AH, Narasimhamurthy M, Rodin D, Rayne S, Zetola NM. Breast Cancer and HIV in Sub-Saharan Africa: A Complex Relationship. J Glob Oncol 2017; 4:1-11. [PMID: 30241185 PMCID: PMC6180795 DOI: 10.1200/jgo.2016.006585] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Introduction The number and lifespan of individuals living with HIV have increased
significantly with the scale-up of antiretroviral therapy. Furthermore, the
incidence of breast cancer in women with HIV is growing, especially in
sub-Saharan Africa (SSA). However, the association between HIV infection and
breast cancer is not well understood. Methods A literature search was performed to identify articles published in journals
pertaining to breast cancer and HIV, with an emphasis on SSA. Selected
US-based studies were also identified for comparison. Results Among the 56 studies reviewed, the largest study examined 314 patients with
breast cancer and HIV in the United States. There is no consensus on whether
HIV infection acts as a pro-oncogenic or antioncogenic factor in breast
cancer, and it may have no relation to breast cancer. A higher incidence of
breast cancer is reported in high-income countries than in SSA, although
breast cancer in SSA presents at a younger age and at a more advanced stage.
Some studies show that patients with breast cancer and HIV experience worse
chemotherapy toxicity than do patients without HIV. Data on treatment
outcomes are limited. The largest study showed worse treatment outcomes in
patients with HIV, compared with their counterparts without HIV. Conclusion HIV infection has not been associated with different clinical presentation of
breast cancer. However, some evidence suggests that concurrent diagnosis of
HIV with breast cancer is associated with increased therapy-related toxicity
and worse outcomes. Systematic prospective studies are needed to establish
whether there is a specific association between breast cancer and HIV.
Collapse
Affiliation(s)
- Surbhi Grover
- Surbhi Grover, Yehoda M. Martei, Priya Puri, and Nicola M. Zetola, University of Pennsylvania, Philadelphia, PA; Surbhi Grover, Mohan Narasimhamurthy, and Nicola M. Zetola, University of Botswana, Gaborone, Botswana; Pooja Prabhakar, University of Texas Southwestern Medical Center, Dallas, TX; Miriam Mutebi, Aga Khan University Hospital, Nairobi, Kenya; Onyinye D. Balogun, Weill Cornell Medicine, New York, NY; Aryeh J. Price, California Institute of Technology, Pasadena; Alexandra H. Freeman, Kaiser Permanente San Francisco, San Francisco, CA; Danielle Rodin, University of Toronto, Toronto, Canada; and Sarah Rayne, Helen Joseph Hospital and University of the Witwatersrand, Johannesburg, South Africa
| | - Yehoda M Martei
- Surbhi Grover, Yehoda M. Martei, Priya Puri, and Nicola M. Zetola, University of Pennsylvania, Philadelphia, PA; Surbhi Grover, Mohan Narasimhamurthy, and Nicola M. Zetola, University of Botswana, Gaborone, Botswana; Pooja Prabhakar, University of Texas Southwestern Medical Center, Dallas, TX; Miriam Mutebi, Aga Khan University Hospital, Nairobi, Kenya; Onyinye D. Balogun, Weill Cornell Medicine, New York, NY; Aryeh J. Price, California Institute of Technology, Pasadena; Alexandra H. Freeman, Kaiser Permanente San Francisco, San Francisco, CA; Danielle Rodin, University of Toronto, Toronto, Canada; and Sarah Rayne, Helen Joseph Hospital and University of the Witwatersrand, Johannesburg, South Africa
| | - Priya Puri
- Surbhi Grover, Yehoda M. Martei, Priya Puri, and Nicola M. Zetola, University of Pennsylvania, Philadelphia, PA; Surbhi Grover, Mohan Narasimhamurthy, and Nicola M. Zetola, University of Botswana, Gaborone, Botswana; Pooja Prabhakar, University of Texas Southwestern Medical Center, Dallas, TX; Miriam Mutebi, Aga Khan University Hospital, Nairobi, Kenya; Onyinye D. Balogun, Weill Cornell Medicine, New York, NY; Aryeh J. Price, California Institute of Technology, Pasadena; Alexandra H. Freeman, Kaiser Permanente San Francisco, San Francisco, CA; Danielle Rodin, University of Toronto, Toronto, Canada; and Sarah Rayne, Helen Joseph Hospital and University of the Witwatersrand, Johannesburg, South Africa
| | - Pooja Prabhakar
- Surbhi Grover, Yehoda M. Martei, Priya Puri, and Nicola M. Zetola, University of Pennsylvania, Philadelphia, PA; Surbhi Grover, Mohan Narasimhamurthy, and Nicola M. Zetola, University of Botswana, Gaborone, Botswana; Pooja Prabhakar, University of Texas Southwestern Medical Center, Dallas, TX; Miriam Mutebi, Aga Khan University Hospital, Nairobi, Kenya; Onyinye D. Balogun, Weill Cornell Medicine, New York, NY; Aryeh J. Price, California Institute of Technology, Pasadena; Alexandra H. Freeman, Kaiser Permanente San Francisco, San Francisco, CA; Danielle Rodin, University of Toronto, Toronto, Canada; and Sarah Rayne, Helen Joseph Hospital and University of the Witwatersrand, Johannesburg, South Africa
| | - Miriam Mutebi
- Surbhi Grover, Yehoda M. Martei, Priya Puri, and Nicola M. Zetola, University of Pennsylvania, Philadelphia, PA; Surbhi Grover, Mohan Narasimhamurthy, and Nicola M. Zetola, University of Botswana, Gaborone, Botswana; Pooja Prabhakar, University of Texas Southwestern Medical Center, Dallas, TX; Miriam Mutebi, Aga Khan University Hospital, Nairobi, Kenya; Onyinye D. Balogun, Weill Cornell Medicine, New York, NY; Aryeh J. Price, California Institute of Technology, Pasadena; Alexandra H. Freeman, Kaiser Permanente San Francisco, San Francisco, CA; Danielle Rodin, University of Toronto, Toronto, Canada; and Sarah Rayne, Helen Joseph Hospital and University of the Witwatersrand, Johannesburg, South Africa
| | - Onyinye D Balogun
- Surbhi Grover, Yehoda M. Martei, Priya Puri, and Nicola M. Zetola, University of Pennsylvania, Philadelphia, PA; Surbhi Grover, Mohan Narasimhamurthy, and Nicola M. Zetola, University of Botswana, Gaborone, Botswana; Pooja Prabhakar, University of Texas Southwestern Medical Center, Dallas, TX; Miriam Mutebi, Aga Khan University Hospital, Nairobi, Kenya; Onyinye D. Balogun, Weill Cornell Medicine, New York, NY; Aryeh J. Price, California Institute of Technology, Pasadena; Alexandra H. Freeman, Kaiser Permanente San Francisco, San Francisco, CA; Danielle Rodin, University of Toronto, Toronto, Canada; and Sarah Rayne, Helen Joseph Hospital and University of the Witwatersrand, Johannesburg, South Africa
| | - Aryeh J Price
- Surbhi Grover, Yehoda M. Martei, Priya Puri, and Nicola M. Zetola, University of Pennsylvania, Philadelphia, PA; Surbhi Grover, Mohan Narasimhamurthy, and Nicola M. Zetola, University of Botswana, Gaborone, Botswana; Pooja Prabhakar, University of Texas Southwestern Medical Center, Dallas, TX; Miriam Mutebi, Aga Khan University Hospital, Nairobi, Kenya; Onyinye D. Balogun, Weill Cornell Medicine, New York, NY; Aryeh J. Price, California Institute of Technology, Pasadena; Alexandra H. Freeman, Kaiser Permanente San Francisco, San Francisco, CA; Danielle Rodin, University of Toronto, Toronto, Canada; and Sarah Rayne, Helen Joseph Hospital and University of the Witwatersrand, Johannesburg, South Africa
| | - Alexandra H Freeman
- Surbhi Grover, Yehoda M. Martei, Priya Puri, and Nicola M. Zetola, University of Pennsylvania, Philadelphia, PA; Surbhi Grover, Mohan Narasimhamurthy, and Nicola M. Zetola, University of Botswana, Gaborone, Botswana; Pooja Prabhakar, University of Texas Southwestern Medical Center, Dallas, TX; Miriam Mutebi, Aga Khan University Hospital, Nairobi, Kenya; Onyinye D. Balogun, Weill Cornell Medicine, New York, NY; Aryeh J. Price, California Institute of Technology, Pasadena; Alexandra H. Freeman, Kaiser Permanente San Francisco, San Francisco, CA; Danielle Rodin, University of Toronto, Toronto, Canada; and Sarah Rayne, Helen Joseph Hospital and University of the Witwatersrand, Johannesburg, South Africa
| | - Mohan Narasimhamurthy
- Surbhi Grover, Yehoda M. Martei, Priya Puri, and Nicola M. Zetola, University of Pennsylvania, Philadelphia, PA; Surbhi Grover, Mohan Narasimhamurthy, and Nicola M. Zetola, University of Botswana, Gaborone, Botswana; Pooja Prabhakar, University of Texas Southwestern Medical Center, Dallas, TX; Miriam Mutebi, Aga Khan University Hospital, Nairobi, Kenya; Onyinye D. Balogun, Weill Cornell Medicine, New York, NY; Aryeh J. Price, California Institute of Technology, Pasadena; Alexandra H. Freeman, Kaiser Permanente San Francisco, San Francisco, CA; Danielle Rodin, University of Toronto, Toronto, Canada; and Sarah Rayne, Helen Joseph Hospital and University of the Witwatersrand, Johannesburg, South Africa
| | - Danielle Rodin
- Surbhi Grover, Yehoda M. Martei, Priya Puri, and Nicola M. Zetola, University of Pennsylvania, Philadelphia, PA; Surbhi Grover, Mohan Narasimhamurthy, and Nicola M. Zetola, University of Botswana, Gaborone, Botswana; Pooja Prabhakar, University of Texas Southwestern Medical Center, Dallas, TX; Miriam Mutebi, Aga Khan University Hospital, Nairobi, Kenya; Onyinye D. Balogun, Weill Cornell Medicine, New York, NY; Aryeh J. Price, California Institute of Technology, Pasadena; Alexandra H. Freeman, Kaiser Permanente San Francisco, San Francisco, CA; Danielle Rodin, University of Toronto, Toronto, Canada; and Sarah Rayne, Helen Joseph Hospital and University of the Witwatersrand, Johannesburg, South Africa
| | - Sarah Rayne
- Surbhi Grover, Yehoda M. Martei, Priya Puri, and Nicola M. Zetola, University of Pennsylvania, Philadelphia, PA; Surbhi Grover, Mohan Narasimhamurthy, and Nicola M. Zetola, University of Botswana, Gaborone, Botswana; Pooja Prabhakar, University of Texas Southwestern Medical Center, Dallas, TX; Miriam Mutebi, Aga Khan University Hospital, Nairobi, Kenya; Onyinye D. Balogun, Weill Cornell Medicine, New York, NY; Aryeh J. Price, California Institute of Technology, Pasadena; Alexandra H. Freeman, Kaiser Permanente San Francisco, San Francisco, CA; Danielle Rodin, University of Toronto, Toronto, Canada; and Sarah Rayne, Helen Joseph Hospital and University of the Witwatersrand, Johannesburg, South Africa
| | - Nicola M Zetola
- Surbhi Grover, Yehoda M. Martei, Priya Puri, and Nicola M. Zetola, University of Pennsylvania, Philadelphia, PA; Surbhi Grover, Mohan Narasimhamurthy, and Nicola M. Zetola, University of Botswana, Gaborone, Botswana; Pooja Prabhakar, University of Texas Southwestern Medical Center, Dallas, TX; Miriam Mutebi, Aga Khan University Hospital, Nairobi, Kenya; Onyinye D. Balogun, Weill Cornell Medicine, New York, NY; Aryeh J. Price, California Institute of Technology, Pasadena; Alexandra H. Freeman, Kaiser Permanente San Francisco, San Francisco, CA; Danielle Rodin, University of Toronto, Toronto, Canada; and Sarah Rayne, Helen Joseph Hospital and University of the Witwatersrand, Johannesburg, South Africa
| |
Collapse
|
26
|
Reyes AJ, Ramcharan K, Goetz L, Aboh S. Penectomy for self-neglected opportunistic carcinoma: a large primary urogenital squamous cell carcinoma as initial manifestation of HIV-AIDS. BMJ Case Rep 2016; 2016:bcr-2016-217040. [PMID: 27530883 DOI: 10.1136/bcr-2016-217040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Affiliation(s)
- Antonio Jose Reyes
- Infectious Disease Unit/Medicine, San Fernando Teaching Hospital, San Fernando, Trinidad and Tobago
| | - Kanterpersad Ramcharan
- Department of Medicine, San Fernando Teaching Hospital, San Fernando, Trinidad and Tobago Department of Medicine, Surgi-Med Clinic, San Fernando, Trinidad and Tobago
| | - Lester Goetz
- Department of Urology, University of the West Indies, St Augustine, Trinidad and Tobago Department of Urology, Gulf View Medical Centre, San Fernando, Trinidad and Tobago
| | - Samuel Aboh
- Infectious Disease Unit/Medicine, San Fernando Teaching Hospital, San Fernando, Trinidad and Tobago
| |
Collapse
|
27
|
[Feasibility of cervical smear in HIV-positive women living in Chad]. ACTA ACUST UNITED AC 2016; 109:180-4. [PMID: 27299910 DOI: 10.1007/s13149-016-0496-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2015] [Accepted: 03/22/2016] [Indexed: 10/21/2022]
Abstract
Cervical cancer is the leading cause of cancerrelated death in Sub-Saharan African women. HIV-infected women are at increased risk for cervical intraepithelial lesions and invasive cervical cancer. WHO guidelines for screening and treatment of precancerous cervical lesions are regularly actualized. There are no data on cervical squamous intraepithelial lesions in Chad. Between August 2013 and May 2015, screening for cervical squamous intraepithelial lesions was proposed to HIV-infected women living in Moundou (Chad). Cytology examination was performed after with Papanicolaou coloration. Three hundred and eleven HIV-seropositive women accepted the screening without refusal. Mean age of the patients was 38 years (95% Confidence Interval: 37.7-39.9). The women declared a mean of 4.1 pregnancies (range: 0-12). The patients had been followed-up for their seropositivity for 8 years (range: 0-25). All were on highly active antiretroviral therapy (HAART). Of the patients whose results were known (N = 231), 98% had a CD4 lymphocyte nadir count less than 350/mm(3). Cytological results were as follows: normal smear (N = 59; 19%), inflammatory or hemorrhagic smear (N = 139; 44%), low grade squamous intraepithelial lesion (N = 58; 19%), high grade squamous intraepithelial lesion (N = 28; 9%), epidermoid carcinoma (N = 13; 4%), and uninterpretable smear (N = 14; 5%). The inflammatory lesions were due to cervicitis (N = 54), vaginosis (N = 22), and trichomonas infection (N = 3). The patients' age, CD4 lymphocyte nadir count, and CD4 count at the time of the cervical smear were not different according to the cytological results. Only five patients had a cone biopsy. Three patients deceased during the study of whom two from a gynaecological cancer diagnosed too late. The screening of dysplasia and cervical cancer in HIV-seropositive women is possible in Chad. In our study, 13% of the women had highgrade dysplasia or carcinoma needing curative care. We also showed that simple cytology did not permit the interpretation of half of the smears. The performance of cervical smear would have increased if it had been preceded by the visualization of the cervix with coloration.
Collapse
|
28
|
Brickman C, Palefsky JM. Human papillomavirus in the HIV-infected host: epidemiology and pathogenesis in the antiretroviral era. Curr HIV/AIDS Rep 2016; 12:6-15. [PMID: 25644977 DOI: 10.1007/s11904-014-0254-4] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Human papillomavirus (HPV) infection is associated with essentially all cervical cancers, 80-90 % of anal cancers, and a high proportion of oropharyngeal, vaginal, penile, and vulvar cancers. Malignancy is preceded by the development of precancerous lesions termed high-grade squamous intraepithelial lesions (HSIL). Men and women with human immunodeficiency virus (HIV) infection are at high risk of HPV-related malignancies. The incidence of anal cancer in particular has markedly risen during the antiretroviral era due to the increased longevity of patients with HIV and the absence of anal malignancy screening programs. HIV infection may facilitate initial HPV infection by disrupting epithelial cell tight junctions. Once infection is established, HIV may promote HSIL development via the up-regulation of HPV oncogene expression and impairment of the immune response needed to clear the lesion. HIV-infected women should be screened for cervical HSIL and cancer, and HIV-infected men and women should be considered for anal screening programs.
Collapse
Affiliation(s)
- Cristina Brickman
- University of California San Francisco, Box 0654 513, Parnassus Ave, Medical Science Room 420E, San Francisco, CA, 94143, USA,
| | | |
Collapse
|
29
|
Langa BC, Oliveira MMC, Pereira SRF, Lupicki K, Marian C, Govender D, Panieri E, Hiss D, Cavalli IJ, Abdul-Rasool S, Cavalli LR. Copy Number Analysis of the DLX4 and ERBB2 Genes in South African Breast Cancer Patients. Cytogenet Genome Res 2015; 146:195-203. [PMID: 26524685 DOI: 10.1159/000439155] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2015] [Indexed: 11/19/2022] Open
Abstract
Breast cancer is one of the main causes of cancer death among South African women. Although several risk factors can be attributed to the observed high mortality rate, the biology of the tumors is not extensively investigated. Copy number gain of the DLX4 homeobox gene has been observed in breast cancer in association with poor prognosis and specific racial groups. Therefore, we aimed to assess the copy number and prognostic role of DLX4 in breast cancer from South African patients. Due to the co-location of ERBB2 and DLX4 in the 17q21 region, its copy number was also evaluated. Our results in the analysis of 66 cases demonstrated copy number gains of DLX4 and ERBB2 in 24.1 and 29.7% of the cases, respectively. Linear regression analysis showed no dependency between the copy number alterations in these genes. Although not significant, patients with DLX4 and ERBB2 gains presented a higher frequency of advanced-grade tumors. In addition, copy number alterations of these genes were not significantly differently observed in the 3 main racial groups of the Western Cape population: Colored, White, and Black. These findings indicate that gains of DLX4 and ERBB2 occur in South African breast cancer patients irrespectively of their race and factors known to influence prognosis.
Collapse
|
30
|
Chalya PL, Mbunda F, Rambau PF, Jaka H, Masalu N, Mirambo M, Mushi MF, Kalluvya SE. Kaposi's sarcoma: a 10-year experience with 248 patients at a single tertiary care hospital in Tanzania. BMC Res Notes 2015; 8:440. [PMID: 26374100 PMCID: PMC5439227 DOI: 10.1186/s13104-015-1348-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2014] [Accepted: 08/17/2015] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Kaposi's Sarcoma is the most common sarcoma and second most prevalent cancer seen in Tanzania. Little is known about Kaposi's sarcoma in our setting as there is paucity of recent published data regarding this condition. This study describes the clinicopathological pattern and treatment outcome of Kaposi's sarcoma at Bugando Medical Centre, a tertiary care hospital in northwestern Tanzania. METHODS This was a prospective study of histologically confirmed Kaposi's sarcoma that was conducted at Bugando Medical Center between July 2004 and June 2014. RESULTS A total of 248 patients (M:F = 1.4:1) representing 2.4% of all malignancies during the study period were enrolled into the study. The median age at presentation was 36 years. Females were younger than males (p = 0.04). Out of 248 patients, 122 (49.2%) were HIV positive. Of these, 46 (37.7%) were males and 76 (62.3%) females. AIDS-related Kaposi's sarcoma were younger than HIV negative Kaposi's sarcoma patients (p = 0.011). Median duration of symptoms was 6 months. Kaposi's sarcoma was the AIDS defining disease in 82 (67.2%) patients while in the remaining 40 (32.8%) it was diagnosed between 1 and 14 months after the initial diagnosis of AIDS. The lower limb was most frequently involved site in 28.9% of patient. Females had more disseminated lesions compared with more localized lesions in the males (p = 0.001). The treatment modalities in this study included chemotherapy, radiotherapy, surgery and highly active antiretroviral therapy. Overall 126 (53.4%) patients had significant improvement in quality of life at the end of 1 year follow up. Treatment related complication and mortality rates were 25.8 and 24.2% respectively. Poor ACTG stage, CD4+ count <200 cells/µl, associated co-morbid illness, disseminated disease and poor adherent to chemotherapy were the significant independent factors associated with deaths (p < 0.001). Patient's follow-up was generally poor and data on long-term survivals were not available as more than two-thirds of patients were lost to follow up. CONCLUSION Kaposi's sarcoma is the most common malignant vascular tumor and HIV/AIDS- related cancer in our region. There is an urgent need to develop health education programmes to enhance the understanding of this disease and how it spreads, particularly among the younger generation.
Collapse
Affiliation(s)
| | - Fidelis Mbunda
- Department of Surgery, Bugando Medical Centre, Mwanza, Tanzania
| | - Peter F Rambau
- Department of Pathology, Catholic University of Health and Allied Science-Bugando, Mwanza, Tanzania
| | - Hyasinta Jaka
- Department of Internal Medicine, Catholic University of Health and Allied Science-Bugando, Mwanza, Tanzania
| | - Nestory Masalu
- Department of Oncology, Bugando Medical Centre, Mwanza, Tanzania
| | - Mariam Mirambo
- Department of Microbiology, Catholic University of Health and Allied Science-Bugando, Mwanza, Tanzania
| | - Martha F Mushi
- Department of Microbiology, Catholic University of Health and Allied Science-Bugando, Mwanza, Tanzania
| | - Samuel E Kalluvya
- Department of Internal Medicine, Catholic University of Health and Allied Science-Bugando, Mwanza, Tanzania
| |
Collapse
|
31
|
Propranolol Decreases Proliferation of Endothelial Cells Transformed by Kaposi's Sarcoma-Associated Herpesvirus and Induces Lytic Viral Gene Expression. J Virol 2015; 89:11144-9. [PMID: 26269192 DOI: 10.1128/jvi.01569-15] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Accepted: 08/07/2015] [Indexed: 12/21/2022] Open
Abstract
Kaposi's sarcoma (KS) is common in Africa, but economic constraints hinder successful treatment in most patients. Propranolol, a generic β-adrenergic antagonist, decreased proliferation of KS-associated herpesvirus (KSHV)-infected cells. Downregulation of cyclin A2 and cyclin-dependent kinase 1 (CDK1) recapitulated this phenotype. Additionally, propranolol induced lytic gene expression in association with downregulation of CDK6. Thus, propranolol has diverse effects on KSHV-infected cells, and this generic drug has potential as a therapeutic agent for KS.
Collapse
|
32
|
Traore B, Diane S, Sow MS, Keita M, Conde M, Traore FA, Kourouma T. [HIV infection in patients with breast cancer in Guinea (West Africa)]. Pan Afr Med J 2015; 21:261. [PMID: 26523196 PMCID: PMC4607795 DOI: 10.11604/pamj.2015.21.261.7146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2015] [Accepted: 07/23/2015] [Indexed: 11/11/2022] Open
Abstract
L'objectif était de déterminer la prévalence de l'infection à VIH chez les patientes atteintes de cancer du sein et de comparer les caractéristiques anatomocliques et thérapeutiques de ces cancers du sein par rapports aux patientes non infectées par le VIH. Il s'agissait d'une étude rétrospective et analytique comparant les dossiers de patientes atteintes de cancers du sein histologiquement confirmés, infectées ou non par le VIH à l'unité de chirurgie oncologique de Donka, CHU de Conakry, de 2007 à 2012. Nous avons colligé 278 patientes présentant un cancer du sein dont 14 (5,0%) infectées par le VIH et 264 (95,0%) non infectées par le VIH. Les différences observées entre ces deux groupes de patientes étaient respectivement: âge médian (36,8 vs 49,0 ans), la ménopause (21,4% vs 53,4%), le nombre des patientes traitées (50,0% contre 77,1%) et la survenue de décès (78,6% vs 50,8%). Aucune différence n'a été notée dans la présentation clinique, histologique et le retard de consultation. Dans notre étude, la prévalence de l'infection à VIH chez les patients atteints de cancer du sein est élevée. L’âge jeune des patients, la faible accessibilité au traitement et la mortalité élevée doivent être confirmés par une étude sur un échantillon plus large.
Collapse
Affiliation(s)
- Bangaly Traore
- Unité de Chirurgie Oncologique de Donka, CHU de Conakry, Guinée
| | - Solomana Diane
- Unité de Chirurgie Oncologique de Donka, CHU de Conakry, Guinée
| | - Mamadou Saliou Sow
- Service des Maladies Infectieuses et Tropicales de Donka, CHU de Conakry, Guinée
| | - Mamady Keita
- Unité de Chirurgie Oncologique de Donka, CHU de Conakry, Guinée
| | - Mamoudou Conde
- Unité de Chirurgie Oncologique de Donka, CHU de Conakry, Guinée
| | - Fodé Amara Traore
- Service des Maladies Infectieuses et Tropicales de Donka, CHU de Conakry, Guinée
| | | |
Collapse
|
33
|
Castilho JL, Luz PM, Shepherd BE, Turner M, Ribeiro SR, Bebawy SS, Netto JS, McGowan CC, Veloso VG, Engels EA, Sterling TR, Grinsztejn B. HIV and cancer: a comparative retrospective study of Brazilian and U.S. clinical cohorts. Infect Agent Cancer 2015; 10:4. [PMID: 25685180 PMCID: PMC4327947 DOI: 10.1186/1750-9378-10-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Accepted: 01/08/2015] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND With successful antiretroviral therapy, non-communicable diseases, including malignancies, are increasingly contributing to morbidity and mortality among HIV-infected persons. The epidemiology of AIDS-defining cancers (ADCs) and non-AIDS-defining cancers (NADCs) in HIV-infected populations in Brazil has not been well described. It is not known if cancer trends in HIV-infected populations in Brazil are similar to those of other countries where antiretroviral therapy is also widely available. METHODS We performed a retrospective analysis of clinical cohorts at Instituto Nacional de Infectologia Evandro Chagas (INI) in Rio de Janeiro and Vanderbilt Comprehensive Care Clinic (VCCC) in Nashville from 1998 to 2010. We used Poisson regression and standardized incidence ratios (SIRs) to examine incidence trends. Clinical and demographic predictors of ADCs and NADCs were examined using Cox proportional hazards models. RESULTS This study included 2,925 patients at INI and 3,927 patients at VCCC. There were 57 ADCs at INI (65% Kaposi sarcoma), 47 at VCCC (40% Kaposi sarcoma), 45 NADCs at INI, and 82 at VCCC. From 1998 to 2004, incidence of ADCs remained statistically unchanged at both sites. From 2005 to 2010, ADC incidence decreased in both cohorts (INI incidence rate ratio per year = 0.74, p < 0.01; VCCC = 0.75, p < 0.01). Overall Kaposi sarcoma incidence was greater at INI than VCCC (3.0 vs. 1.2 cases per 1,000 person-years, p < 0.01). Incidence of NADCs remained constant throughout the study period (overall INI incidence 3.6 per 1,000 person-years and VCCC incidence 5.3 per 1,000 person-years). Compared to general populations, overall risk of NADCs was increased at both sites (INI SIR = 1.4 [95% CI 1.1-1.9] and VCCC SIR = 1.3 [1.0-1.7]). After non-melanoma skin cancers, the most frequent NADCs were anal cancer at INI (n = 7) and lung cancer at VCCC (n = 11). In multivariate models, risk of ADC was associated with male sex and immunosuppression. Risk of NADC was associated with increased age. CONCLUSIONS In both cohorts, ADCs have decreased over time, though incidence of KS was higher at INI than VCCC. Rates of NADCs remained constant over time at both sites.
Collapse
Affiliation(s)
- Jessica L Castilho
- Department of Medicine, Division of Infectious Diseases, MCN A2200, Vanderbilt University School of Medicine, 1611 21st Avenue South, Nashville, TN 37232 USA
| | - Paula M Luz
- Fundação Oswaldo Cruz, Instituto Nacional de Infectologia Evandro Chagas, HIV/AIDS Clinical Research Center, Avenida Brasil 4365, Rio de Janeiro, RJ CEP: 21040-360 Brazil
| | - Bryan E Shepherd
- Vanderbilt University School of Medicine Department of Biostatistics, 2525 West End, Suite 11000, Nashville, TN 37203 USA
| | - Megan Turner
- Department of Medicine, Division of Infectious Diseases, MCN A2200, Vanderbilt University School of Medicine, 1611 21st Avenue South, Nashville, TN 37232 USA
| | - Sayonara R Ribeiro
- Fundação Oswaldo Cruz, Instituto Nacional de Infectologia Evandro Chagas, HIV/AIDS Clinical Research Center, Avenida Brasil 4365, Rio de Janeiro, RJ CEP: 21040-360 Brazil
| | - Sally S Bebawy
- Department of Medicine, Division of Infectious Diseases, MCN A2200, Vanderbilt University School of Medicine, 1611 21st Avenue South, Nashville, TN 37232 USA
| | - Juliana S Netto
- Fundação Oswaldo Cruz, Instituto Nacional de Infectologia Evandro Chagas, HIV/AIDS Clinical Research Center, Avenida Brasil 4365, Rio de Janeiro, RJ CEP: 21040-360 Brazil
| | - Catherine C McGowan
- Department of Medicine, Division of Infectious Diseases, MCN A2200, Vanderbilt University School of Medicine, 1611 21st Avenue South, Nashville, TN 37232 USA
| | - Valdiléa G Veloso
- Fundação Oswaldo Cruz, Instituto Nacional de Infectologia Evandro Chagas, HIV/AIDS Clinical Research Center, Avenida Brasil 4365, Rio de Janeiro, RJ CEP: 21040-360 Brazil
| | - Eric A Engels
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, 9609 Medical Center Drive, MSC 9776, Bethesda, MD 20892 USA
| | - Timothy R Sterling
- Department of Medicine, Division of Infectious Diseases, MCN A2200, Vanderbilt University School of Medicine, 1611 21st Avenue South, Nashville, TN 37232 USA
| | - Beatriz Grinsztejn
- Fundação Oswaldo Cruz, Instituto Nacional de Infectologia Evandro Chagas, HIV/AIDS Clinical Research Center, Avenida Brasil 4365, Rio de Janeiro, RJ CEP: 21040-360 Brazil
| |
Collapse
|
34
|
Meernik C, Soliman AS, Ngoma T, Kahesa C, Mwaiselage J, Merajver SD. The changing pattern of ano-rectal cancer, squamous cell carcinoma of the eye, and Hodgkin's lymphoma as non-AIDS-defining cancers, by HIV status, in Tanzania over 11 years (2002-2012): a retrospective case-report study. Infect Agent Cancer 2014; 9:42. [PMID: 25926865 PMCID: PMC4414437 DOI: 10.1186/1750-9378-9-42] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2014] [Accepted: 11/03/2014] [Indexed: 12/01/2022] Open
Abstract
BACKGROUND In Tanzania, 5.1% of adults aged 15-49 are infected with HIV. While rates of HIV-related malignancies have declined globally with antiretroviral therapy (ART), including Tanzania, rates of non-AIDS-defining cancers (NADCs) are believed to have increased. Therefore, we determined trends of three NADCs in Tanzania: ano-rectal cancer, squamous cell carcinoma of the eye, and Hodgkin's lymphoma. METHODS This study was conducted at the Ocean Road Cancer Institute (ORCI) in Dar es Salaam. All medical records of patients diagnosed with ano-rectal cancer, squamous cell carcinoma of the eye, and Hodgkin's lymphoma between 2002 and 2012 were reviewed regarding HIV status, cancer clinical characteristics and management. Analysis was conducted to determine trends and proportions in these three NADCs and patient characteristics. RESULTS We identified 980 NADCs. The relative proportion of these three NADCs at ORCI out of all cancers treated increased from 2.37% in 2002 to a peak of 4.34% in 2009. The prevalence of HIV in patients diagnosed with these NADCs also increased-from 6.67% in 2002 to 20.87% in 2010-and 85% of squamous cell carcinoma of the eye cancer patients with a reported HIV status were HIV-positive. CONCLUSIONS The frequency and proportions of these three NADCs in Tanzania have increased over the past 11 years, as has the prevalence of HIV positivity amongst these NADC patients. The current and possibly increasing burden of NADCs in Tanzania and other low- and middle-income countries with high HIV rates should be a focus for future cancer prevention and control and HIV therapy programs.
Collapse
Affiliation(s)
- Clare Meernik
- />Department of Epidemiology, University of Michigan School of Public Health, Ann Arbor, MI USA
| | - Amr S Soliman
- />Department of Epidemiology, University of Nebraska Medical Center College of Public Health, Omaha, NE USA
| | - Twalib Ngoma
- />Ocean Road Cancer Institute, Dar es Salaam, Tanzania
| | | | | | - Sofia D Merajver
- />Department of Epidemiology, University of Michigan School of Public Health, Ann Arbor, MI USA
| |
Collapse
|
35
|
Singh P, Cartwright L, Visperas C. African Kaposi's sarcoma in the light of global AIDS: antiblackness and viral visibility. JOURNAL OF BIOETHICAL INQUIRY 2014; 11:467-478. [PMID: 25304011 DOI: 10.1007/s11673-014-9577-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2014] [Accepted: 08/04/2014] [Indexed: 06/04/2023]
Abstract
Drawing on the theoretical frameworks of antiblackness and intersectionality and the concept of viral visibility, this essay attends to the considerable archive of research about endemic Kaposi's sarcoma (KS) in sub-Saharan Africa accrued during the mid-20th century. This body of data was inexplicably overlooked in Western research into KS during the first decade of the AIDS epidemic, during which period European and Mediterranean KS cases were most often cited as precedents despite the volume of African data available. This paper returns to the research on KS conducted in Africa during the colonial and postcolonial period to consider visibility, racial erasure, and discourses of global epidemiology, suggesting that the dynamics of medical research on HIV/AIDS have proceeded according to a tacit paradigm of antiblackness manifest in multiple exclusions of Africa from global health agendas--most recently the exclusion of the region from antiretroviral (ARV) drug therapy during the first decades of the treatment's availability. During that decade KS all but disappeared among people with access to ARV therapy while KS became even more prevalent in sub-Saharan Africa, escalating along with HIV.
Collapse
Affiliation(s)
- Pawan Singh
- Department of Communication, University of California San Diego, La Jolla, CA, USA,
| | | | | |
Collapse
|
36
|
Carreira H, Lorenzoni C, Carrilho C, Ferro J, Sultane T, Garcia C, Amod F, Augusto O, Silva-Matos C, La Vecchia C, Lunet N. Spectrum of pediatric cancers in Mozambique: an analysis of hospital and population-based data. Pediatr Hematol Oncol 2014; 31:498-508. [PMID: 24852201 PMCID: PMC4339047 DOI: 10.3109/08880018.2014.909547] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The existing data provide little detail about the epidemiology of pediatric cancers in Mozambique. We aimed at characterizing the spectrum of pediatric cancers (0-14 years) diagnosed in Mozambique in two different calendar periods. Data were obtained from the Pathology Department of the Maputo Central Hospital (DP-HCM) (1999-2000 and 2009-2010), which receives virtually all samples for histopathological diagnosis in Maputo, with the exception of leukemia, and from the population-based Cancer Registry of Beira (2009-2010). In 1999-2000, the DP-HCM diagnosed 61 cancers. Burkitt lymphoma, malignant bone tumors, and rhabdomyosarcomas accounted for 24.6%, 11.5%, and 9.8% of all cases, respectively. In 2009-2010, the number of cancers increased to 150, reflecting a two- to threefold increase in the proportion of Kaposi sarcomas, non-Hodgkin lymphomas, nephroblastomas, and neuroblastomas. In 2009-2010, the Cancer Registry of Beira registered 34 cases, corresponding to an incidence rate of 9.7/100,000 inhabitants in this age group; Kaposi sarcomas, lymphomas, retinoblastomas, and nephroblastomas accounted for 29.4%, 23.5%, 8.8%, and 8.8% of all cases, respectively. These data show that pediatric cancers account for an appreciable burden in Mozambique, probably reflecting a high frequency of HIV-associated cancers and improved access to diagnosis, and highlight the potential for improving surveillance in this low resource setting.
Collapse
Affiliation(s)
- Helena Carreira
- Institute of Public Health, University of Porto, Porto, Portugal,Department of Clinical Epidemiology, Predictive Medicine and Public Health, University of Porto Medical School, Porto, Portugal
| | - Cesaltina Lorenzoni
- Department of Pathology, Medical Faculty, Eduardo Mondlane University, Maputo, Mozambique,Department of Anatomical Pathology, Maputo Central Hospital, Maputo, Mozambique
| | - Carla Carrilho
- Department of Pathology, Medical Faculty, Eduardo Mondlane University, Maputo, Mozambique,Department of Anatomical Pathology, Maputo Central Hospital, Maputo, Mozambique
| | - Josefo Ferro
- Department of Anatomical Pathology, Beira Central Hospital, Beira, Mozambique,Faculty of Medicine, Catholic University, Beira, Mozambique
| | - Thebora Sultane
- Serology Laboratory, National Institute of Health, Ministry of Health, Mozambique
| | - Carlos Garcia
- Department of Anatomical Pathology, Beira Central Hospital, Beira, Mozambique,Faculty of Medicine, Catholic University, Beira, Mozambique
| | - Faizana Amod
- Department of Pediatrics, Maputo Central Hospital, Maputo, Mozambique
| | - Orvalho Augusto
- Department of Anatomical Pathology, Maputo Central Hospital, Maputo, Mozambique
| | - Carla Silva-Matos
- Department of Non-Communicable Diseases, Ministry of Health, Maputo, Mozambique
| | - Carlo La Vecchia
- Department of Epidemiology, IRCCS, Istituto di Ricerche Farmacologiche “Mario Negri,” Milan, Italy,Department of Clinical Sciences and Public Health, Università degli Studi diMilano, Milan, Italy
| | - Nuno Lunet
- Institute of Public Health, University of Porto, Porto, Portugal,Department of Clinical Epidemiology, Predictive Medicine and Public Health, University of Porto Medical School, Porto, Portugal
| |
Collapse
|
37
|
Simbiri KO, Jha HC, Kayembe MK, Kovarik C, Robertson ES. Oncogenic viruses associated with vulva cancer in HIV-1 patients in Botswana. Infect Agent Cancer 2014; 9:28. [PMID: 25225572 PMCID: PMC4164322 DOI: 10.1186/1750-9378-9-28] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2014] [Accepted: 07/04/2014] [Indexed: 12/15/2022] Open
Abstract
Background Oncoviruses such as HPV, KSHV, and EBV have been reported in patients with HIV infection and AIDS. How oncovirus-associated cancers rise in AIDS patients has not been fully established. The purpose of our study was to identify the viral agents in vulvar cancer and to assess their contribution to pathogenesis. Method We retrospectively identified a total of 13 vulva tissue samples from HIV-1 positive and 9 vulvar samples from HIV-1 negative patients from the Botswana National Health Laboratory in Gaborone, Botswana, a Southern African country with a high incidence of HIV. We utilized PCR and IHC to identify HPV, EBV, KSHV, and JC virus in FFPE preserved tissue samples. Results Using the GP5+/GP6+ primer set we detected several HPV types in tissue samples. EBV was detected in all of the positive cases (100%) and in most of the negative cases (89%). KSHV was detected in 39% of the HIV-1 positive samples and in 11% of the negative samples, and no JC virus was detected in any of the samples. Using IHC we demonstrated that LANA was expressed in 61% of the positive samples and in 44% of the negative samples. The ubiquitous EBV was more consistently expressed in negative cases (100%) than in positive cases (69%). Interestingly, the HPV-16 E6 transcript was detected in 56% of the negative samples compared to 31% of the positive samples. However, the cell cycle protein P21 used as a surrogate marker for HPV was detected in 77% of the positive samples and in 44% of the negative samples, while VEGF signals were similar in both positive (92%) and negative samples (89%). Conclusion Our study, suggests that in Botswana, vulvar squamous cell carcinoma (VSCC) is associated with oncogenic viruses present in the niche but the contribution and progression may be regulated by HPV and other immunosuppressive infections that include HIV-1.
Collapse
Affiliation(s)
- Kenneth O Simbiri
- Department of Microbiology and Immunology, Upstate Medical University, R2120A, Weiskotten Hall, 750 East Adams Street, Syracuse, NY 13210, USA
| | - Hem C Jha
- Department of Microbiology, Abramson Cancer Center, Tumor Virology Program, Perelman School of Medicine at the University of Pennsylvania, 202A Johnson Pavilion, 3610 Hamilton Walk, Philadelphia, PA 19104-6076, USA
| | | | - Carrie Kovarik
- Botswana-University of Pennsylvania Partnership, Gaborone, Botswana ; Department of Dermatology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Erle S Robertson
- Department of Microbiology, Abramson Cancer Center, Tumor Virology Program, Perelman School of Medicine at the University of Pennsylvania, 202A Johnson Pavilion, 3610 Hamilton Walk, Philadelphia, PA 19104-6076, USA
| |
Collapse
|
38
|
Flepisi BT, Bouic P, Sissolak G, Rosenkranz B. Biomarkers of HIV-associated Cancer. BIOMARKERS IN CANCER 2014; 6:11-20. [PMID: 25057241 PMCID: PMC4085100 DOI: 10.4137/bic.s15056] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/02/2014] [Revised: 04/21/2014] [Accepted: 04/23/2014] [Indexed: 12/13/2022]
Abstract
Cancer biomarkers have provided great opportunities for improving the management of cancer patients by enhancing the efficiency of early detection, diagnosis, and efficacy of treatment. Every cell type has a unique molecular signature, referred to as biomarkers, which are identifiable characteristics such as levels or activities of a myriad of genes, proteins, or other molecular features. Biomarkers can facilitate the molecular definition of cancer, provide information about the course of cancer, and predict response to chemotherapy. They offer the hope of early detection as well as tracking disease progression and recurrence. Current progress in the characterization of molecular genetics of HIV-associated cancers may form the basis for improved patient stratification and future targeted or individualized therapies. Biomarker use for cancer staging and personalization of therapy at the time of diagnosis could improve patient care. This review focuses on the relevance of biomarkers in the most common HIV-associated malignancies, namely, Kaposi sarcoma, non-Hodgkin’s lymphoma, and invasive cervical cancer.
Collapse
Affiliation(s)
- Brian Thabile Flepisi
- Division of Clinical Pharmacology, Department of Medicine, Stellenbosch University, Cape Town, South Africa
| | - Patrick Bouic
- Department of Medical Microbiology, Stellenbosch University, Cape Town, South Africa
| | - Gerhard Sissolak
- Division of Clinical Haematology, Department of Medicine, Stellenbosch University, Cape Town, South Africa
| | - Bernd Rosenkranz
- Clinical Pharmacology Division, Department of Medicine, Stellenbosch University, Cape Town, South Africa
| |
Collapse
|
39
|
Abstract
BACKGROUND Noncommunicable diseases, and especially cancers, are recognized as an increasing problem for low and middle income countries. Effective control programs require adequate information on the size, nature, and evolution of the health problem that they pose. METHODS We present estimates of the incidence and mortality of cancer in Africa in 2012, derived from "GLOBOCAN 2012," published by the International Agency for Research on Cancer. RESULTS There were 847,000 new cancer cases (6% of the world total) and 591,000 deaths (7.2% of the world total) in the 54 countries of Africa in 2012, with about three quarters in the 47 countries of Sub-Saharan Africa. While the cancer profiles often differ markedly between regions, the most common cancers in men were prostate (16.4% of new cancers), liver (10.7%), and Kaposi sarcoma (6.7%); in women, by far the most important are cancers of the breast (27.6% of all cancers) and cervix uteri (20.4%). CONCLUSIONS There are still deficiencies in surveillance systems, particularly in Sub-Saharan Africa and, specifically, of their most vital component, population-based cancer registries. With the number of annual cancer cases and deaths likely to increase by at least 70% by 2030, there is a pressing need for a coordinated approach to improving the extent and quality of services for cancer control in Africa, and better surveillance systems with which they can be planned and monitored. IMPACT The results are the best data currently available and provide a reasonable appraisal of the cancer situation in Africa.
Collapse
Affiliation(s)
- D Maxwell Parkin
- Authors' Affiliations: African Cancer Registry Network, INCTR African Registry Programme; Clinical Trials Service Unit & Epidemiological Studies Unit, Nuffield Department of Public Health, University of Oxford, Richard Doll Building, Oxford, United Kingdom; Section of Cancer Information, International Agency for Research on Cancer, Lyon, France; and Surveillance & Health Services Research, American Cancer Society, Inc., Atlanta, GeorgiaAuthors' Affiliations: African Cancer Registry Network, INCTR African Registry Programme; Clinical Trials Service Unit & Epidemiological Studies Unit, Nuffield Department of Public Health, University of Oxford, Richard Doll Building, Oxford, United Kingdom; Section of Cancer Information, International Agency for Research on Cancer, Lyon, France; and Surveillance & Health Services Research, American Cancer Society, Inc., Atlanta, Georgia
| | - Freddie Bray
- Authors' Affiliations: African Cancer Registry Network, INCTR African Registry Programme; Clinical Trials Service Unit & Epidemiological Studies Unit, Nuffield Department of Public Health, University of Oxford, Richard Doll Building, Oxford, United Kingdom; Section of Cancer Information, International Agency for Research on Cancer, Lyon, France; and Surveillance & Health Services Research, American Cancer Society, Inc., Atlanta, Georgia
| | - Jacques Ferlay
- Authors' Affiliations: African Cancer Registry Network, INCTR African Registry Programme; Clinical Trials Service Unit & Epidemiological Studies Unit, Nuffield Department of Public Health, University of Oxford, Richard Doll Building, Oxford, United Kingdom; Section of Cancer Information, International Agency for Research on Cancer, Lyon, France; and Surveillance & Health Services Research, American Cancer Society, Inc., Atlanta, Georgia
| | - Ahmedin Jemal
- Authors' Affiliations: African Cancer Registry Network, INCTR African Registry Programme; Clinical Trials Service Unit & Epidemiological Studies Unit, Nuffield Department of Public Health, University of Oxford, Richard Doll Building, Oxford, United Kingdom; Section of Cancer Information, International Agency for Research on Cancer, Lyon, France; and Surveillance & Health Services Research, American Cancer Society, Inc., Atlanta, Georgia
| |
Collapse
|
40
|
Mwololo A, Nyagol J, Rogena E, Ochuk W, Kimani M, Onyango N, Pacenti L, Santopietro R, Leoncini L, Mwanda W. Correlation of EGFR, pEGFR and p16INK4 expressions and high risk HPV infection in HIV/AIDS-related squamous cell carcinoma of conjunctiva. Infect Agent Cancer 2014; 9:7. [PMID: 24572046 PMCID: PMC3996052 DOI: 10.1186/1750-9378-9-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2013] [Accepted: 02/11/2014] [Indexed: 12/17/2022] Open
Abstract
Background Squamous cell carcinoma of conjunctiva has increased tenfold in the era of HIV/AIDS. The disease pattern has also changed in Africa, affecting young persons, with peak age-specific incidence of 30-39 years, similar to that of Kaposi sarcoma, a well known HIV/AIDS defining neoplasm. In addition, the disease has assumed more aggressive clinical course. The contributing role of exposure to high risk HPV in the development of SCCC is still emerging. Objective The present study aimed to investigate if immunohistochemical expressions of EGFR, pEGFR and p16, could predict infection with high risk HPV in HIV-related SCCC. Methods FFPE tissue blocks of fifty-eight cases diagnosed on hematoxylin and eosin with SCCC between 2005-2011, and subsequently confirmed from medical records to be HIV positive at the department of human pathology, UoN/KNH, were used for the study. Immunohistochemistry was performed to assess the expressions of p16INK4A, EGFR and pEGFR. This was followed with semi-nested PCR based detection and sequencing of HPV genotypes. The sequences were compared with the GenBank database, and data analyzed for significant statistical correlations using SPSS 16.0. Ethical approval to conduct the study was obtained from KNH-ERC. Results Out of the fifty-eight cases of SCCC analyzed, twenty-nine (50%) had well differentiated (grade 1), twenty one (36.2%) moderately differentiated (grade 2) while eight (13.8%) had poorly differentiated (grade 3) tumours. Immunohistochemistry assay was done in all the fifty eight studied cases, of which thirty nine cases (67.2%) were positive for p16INK4A staining, forty eight cases (82.8%) for EGFR and fifty one cases (87.9%) showed positivity for p-EGFR. HPV DNA was detected in 4 out of 40 SCCC cases (10%) in which PCR was performed, with HPV16 being the only HPV sub-type detected. Significant statistical association was found between HPV detection and p16INK4 (p=0.000, at 99% C.I) and EGFR (p=0.028, at 95% C.I) expressions, but not pEGFR. In addition, the expressions of these biomarkers did not show any significant association with tumor grades. Conclusion This study points to an association of high risk HPV with over expressions of p16INK4A and EGFR proteins in AIDS-associated SCCC.
Collapse
Affiliation(s)
| | - Joshua Nyagol
- Department of Human Pathology, University of Nairobi, Nairobi, Kenya.
| | | | | | | | | | | | | | | | | |
Collapse
|
41
|
Korir A, Mauti N, Moats P, Gurka MJ, Mutuma G, Metheny C, Mwamba PM, Oyiro PO, Fisher M, Ayers LW, Rochford R, Mwanda WO, Remick SC. Developing clinical strength-of-evidence approach to define HIV-associated malignancies for cancer registration in Kenya. PLoS One 2014; 9:e85881. [PMID: 24465764 PMCID: PMC3900436 DOI: 10.1371/journal.pone.0085881] [Citation(s) in RCA: 3] [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: 10/31/2013] [Accepted: 12/06/2013] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Sub-Saharan Africa cancer registries are beset by an increasing cancer burden further exacerbated by the AIDS epidemic where there are limited capabilities for cancer-AIDS match co-registration. We undertook a pilot study based on a "strength-of-evidence" approach using clinical data that is abstracted at the time of cancer registration for purposes of linking cancer diagnosis to AIDS diagnosis. METHODS/FINDINGS The standard Nairobi Cancer Registry form was modified for registrars to abstract the following clinical data from medical records regarding HIV infection/AIDS in a hierarchal approach at time of cancer registration from highest-to-lowest strength-of-evidence: 1) documentation of positive HIV serology; 2) antiretroviral drug prescription; 3) CD4+ lymphocyte count; and 4) WHO HIV clinical stage or immune suppression syndrome (ISS), which is Kenyan terminology for AIDS. Between August 1 and October 31, 2011 a total of 1,200 cancer cases were registered. Of these, 171 cases (14.3%) met clinical strength-of-evidence criteria for association with HIV infection/AIDS; 69% (118 cases were tumor types with known HIV association - Kaposi's sarcoma, cervical cancer, non-Hodgkin's and Hodgkin's lymphoma, and conjunctiva carcinoma) and 31% (53) were consistent with non-AIDS defining cancers. Verifiable positive HIV serology was identified in 47 (27%) cases for an absolute seroprevalence rate of 4% among the cancer registered cases with an upper boundary of 14% among those meeting at least one of strength-of-evidence criteria. CONCLUSIONS/SIGNIFICANCE This pilot demonstration of a hierarchal, clinical strength-of-evidence approach for cancer-AIDS registration in Kenya establishes feasibility, is readily adaptable, pragmatic, and does not require additional resources for critically under staffed cancer registries. Cancer is an emerging public health challenge, and African nations need to develop well designed population-based studies in order to better define the impact and spectrum of malignant disease in the backdrop of HIV infection.
Collapse
Affiliation(s)
- Anne Korir
- Kenya Medical Research Institute, Nairobi Cancer Registry, Nairobi, Kenya
- * E-mail: (AK); (SCR)
| | - Nathan Mauti
- Kenya Medical Research Institute, Nairobi Cancer Registry, Nairobi, Kenya
| | - Pamela Moats
- West Virginia University Hospitals, Health Information Management–Cancer Registry, Morgantown, West Virginia, United States of America
| | - Matthew J. Gurka
- Department of Biostatistics, West Virginia University School of Public Health, Morgantown, West Virginia, United States of America
| | - Geoffrey Mutuma
- Kenya Medical Research Institute, Nairobi Cancer Registry, Nairobi, Kenya
| | - Christine Metheny
- West Virginia University Hospitals, Health Information Management–Cancer Registry, Morgantown, West Virginia, United States of America
| | - Peter M. Mwamba
- University of Nairobi Institute of Tropical and Infectious Diseases (UNITID), University of Nairobi College of Health Sciences, and Kenyatta National Hospital, Nairobi, Kenya
| | - Peter O. Oyiro
- University of Nairobi Institute of Tropical and Infectious Diseases (UNITID), University of Nairobi College of Health Sciences, and Kenyatta National Hospital, Nairobi, Kenya
| | - Melanie Fisher
- Department of Medicine, Global Health Program (MF) and Mary Babb Randolph Cancer Center (SCR), West Virginia University School of Medicine, Morgantown, West Virginia, United States of America
| | - Leona W. Ayers
- Department of Pathology, The Ohio State University College of Medicine, Columbus, Ohio, United States of America
| | - Rosemary Rochford
- Department of Microbiology and Immunology, SUNY Upstate Medical University, Syracuse, New York, United States of America
| | - Walter O. Mwanda
- University of Nairobi Institute of Tropical and Infectious Diseases (UNITID), University of Nairobi College of Health Sciences, and Kenyatta National Hospital, Nairobi, Kenya
| | - Scot C. Remick
- Department of Medicine, Global Health Program (MF) and Mary Babb Randolph Cancer Center (SCR), West Virginia University School of Medicine, Morgantown, West Virginia, United States of America
- * E-mail: (AK); (SCR)
| |
Collapse
|
42
|
Huchko MJ, Sneden J, Leslie HH, Abdulrahim N, Maloba M, Bukusi E, Cohen CR. A comparison of two visual inspection methods for cervical cancer screening among HIV-infected women in Kenya. Bull World Health Organ 2014; 92:195-203. [PMID: 24700979 DOI: 10.2471/blt.13.122051] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2013] [Revised: 11/12/2013] [Accepted: 11/12/2013] [Indexed: 11/27/2022] Open
Abstract
OBJECTIVE To determine the optimal strategy for cervical cancer screening in women with human immunodeficiency virus (HIV) infection by comparing two strategies: visual inspection of the cervix with acetic acid (VIA) and VIA followed immediately by visual inspection with Lugol's iodine (VIA/VILI) in women with a positive VIA result. METHODS Data from a cervical cancer screening programme embedded in two HIV clinic sites in western Kenya were evaluated. Women at a central site underwent VIA, while women at a peripheral site underwent VIA/VILI. All women positive for cervical intraepithelial neoplasia grade 2 or worse (CIN 2+) on VIA and/or VILI had a confirmatory colposcopy, with a biopsy if necessary. Overall test positivity, positive predictive value (PPV) and the CIN 2+ detection rate were calculated for the two screening methods, with biopsy being the gold standard. FINDINGS Between October 2007 and October 2010, 2338 women were screened with VIA and 1124 with VIA/VILI. In the VIA group, 26.4% of the women tested positive for CIN 2+; in the VIA/VILI group, 21.7% tested positive (P < 0.01). Histologically confirmed CIN 2+ was detected in 8.9% and 7.8% (P = 0.27) of women in the VIA and VIA/VILI groups, respectively. The PPV of VIA for biopsy-confirmed CIN 2+ in a single round of screening was 35.2%, compared with 38.2% for VIA/VILI (P = 0.41). CONCLUSION The absence of any differences between VIA and VIA/VILI in detection rates or PPV for CIN 2+ suggests that VIA, an easy testing procedure, can be used alone as a cervical cancer screening strategy in low-income settings.
Collapse
Affiliation(s)
- Megan J Huchko
- University of California, San Francisco, 50 Beale Street (Suite 1200), San Francisco, CA 94105, United States of America (USA)
| | - Jennifer Sneden
- University of California, San Francisco, 50 Beale Street (Suite 1200), San Francisco, CA 94105, United States of America (USA)
| | | | | | - May Maloba
- Kenya Medical Research Institute, Nairobi, Kenya
| | | | - Craig R Cohen
- University of California, San Francisco, 50 Beale Street (Suite 1200), San Francisco, CA 94105, United States of America (USA)
| |
Collapse
|
43
|
The prevalence of precancerous cervical cancer lesion among HIV-infected women in southern Ethiopia: a cross-sectional study. PLoS One 2013; 8:e84519. [PMID: 24376818 PMCID: PMC3869839 DOI: 10.1371/journal.pone.0084519] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2013] [Accepted: 11/15/2013] [Indexed: 12/03/2022] Open
Abstract
Introduction The magnitude of precancerous cervical cancer lesions as well as invasive cervical cancer is higher in HIV-infected women than non HIV-infected women. Thus, screening targeting HIV-infected women is being undertaken in developing countries, including Ethiopia. However, data on the prevalence and determinants of precancerous cervical cancer lesion among HIV-infected women in southern Ethiopia is lacking. Thus, this study aimed to assess the prevalence of and factors associated with precancerous cervical cancer lesion among HIV- infected women in southern Ethiopia. Methods A hospital-based cross-sectional study was conducted from October 2012 to February 2013 among HIV-infected women in Southern Ethiopia. Four hundred forty eight HIV-infected women who had been screened and treated for precancerous cervical cancer lesion were included in the study. Data were collected by using structured and pretested questionnaire. Visual inspection with acetic acid was applied for screening and treatment. SPSS version 16.0 was used for data entry and analysis. Logistic regression analysis was fitted and odds ratios with 95% Confidence intervals and p-values were computed to identify factors associated with precancerous cervical cancer lesion. Results Out of 448 study participants, 99 (22.1%) were found to be positive for precancerous cervical cancer. Being currently on highly active antiretroviral treatment (AOR=0.52, 95%CI: 0.35, 0.92), history of sexually transmitted disease (AOR=2.30, 95%CI: 1.23, 4.29) and having only one lifetime sexual partner (AOR=0.33, 95%CI: 0.20, 0.56) were factors associated with precancerous cervical cancer lesion. Conclusions The prevalence of precancerous cervical cancer lesion among HIV-infected women in southern Ethiopia was found to be high. Intervention to access all HIV-infected women like scaling up the limited services and awareness creation should be undertaken. Measures aimed at preventing the acquisition and transmission of sexually transmitted diseases and reducing the number of sexual partners are required. Besides, early initiation of highly active antiretroviral treatment is important.
Collapse
|
44
|
Treatment strategies for Kaposi sarcoma in sub-Saharan Africa: challenges and opportunities. Curr Opin Oncol 2013; 23:463-8. [PMID: 21681092 DOI: 10.1097/cco.0b013e328349428d] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE OF REVIEW The purpose of this review is to summarize recent published literature on treatment of AIDS-associated Kaposi sarcoma, the most common HIV-associated malignancy and a leading cancer diagnosis in sub-Saharan Africa (SSA), and to highlight the challenges faced in treating Kaposi sarcoma in this resource-limited environment. RECENT FINDINGS There are few prospective clinical trials for Kaposi sarcoma treatment in SSA, along with a relatively poor cancer treatment infrastructure, leading to late diagnosis and poor access to therapy. The only prospectively randomized trial of chemotherapy compared antiretroviral therapy (HAART) alone to HAART with combination chemotherapy with doxorubicin, bleomycin and vincristine (ABV), and documented a significantly higher rate of tumor regression for the combination along with improvement in quality of life and no adverse effects on HIV control. Other studies suggest that gemcitabine may be an active second-line chemotherapeutic agent after failure of HAART and ABV and suggest that AIDS-associated Kaposi sarcoma in children may respond well to HAART with chemotherapy. There are also (primarily retrospective) data suggesting a beneficial effect of HAART on Kaposi sarcoma, but some evidence for Kaposi sarcoma as a manifestation of immune reconstitution inflammatory syndrome. SUMMARY Opportunities and need exist for prospective research to establish evidence-based guidelines for the most effective treatments for Kaposi sarcoma in SSA.
Collapse
|
45
|
Seroprevalence of human herpesvirus-8 in HIV-1 infected and uninfected individuals in Cameroon. Viruses 2013; 5:2253-9. [PMID: 24056671 PMCID: PMC3798899 DOI: 10.3390/v5092253] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2013] [Revised: 08/08/2013] [Accepted: 09/13/2013] [Indexed: 01/04/2023] Open
Abstract
We evaluated the prevalence of HHV-8 antibodies in 516 plasma samples collected from HIV positive and negative patients from blood banks and urban areas of Cameroon. Among HIV-1 positive samples, HHV-8 seropositivity rate was 61% based on combined reactivity using both ELISA and IFA techniques. HIV negative samples showed 62% seropositivity rate for HHV-8 antibodies. Our results indicate a high HHV-8 prevalence rate in both HIV infected and uninfected individuals in Cameroon.
Collapse
|
46
|
Carreira H, Coutinho F, Carrilho C, Lunet N. HIV and HPV infections and ocular surface squamous neoplasia: systematic review and meta-analysis. Br J Cancer 2013; 109:1981-8. [PMID: 24030075 PMCID: PMC3790185 DOI: 10.1038/bjc.2013.539] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2013] [Revised: 07/26/2013] [Accepted: 08/13/2013] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND The frequency of ocular surface squamous neoplasias (OSSNs) has been increasing in populations with a high prevalence of infection with human immunodeficiency virus/acquired immunodeficiency syndrome (HIV/AIDS) and infection with human papillomavirus (HPV). We aimed to quantify the association between HIV/AIDS and HPV infection and OSSN, through systematic review and meta-analysis. METHODS The articles providing data on the association between HIV/AIDS and/or HPV infection and OSSN were identified in MEDLINE, SCOPUS and EMBASE searched up to May 2013, and through backward citation tracking. The DerSimonian and Laird method was used to compute summary relative risk (RR) estimates and 95% confidence intervals (95% CI). Heterogeneity was quantified with the I(2) statistic. RESULTS HIV/AIDS was strongly associated with an increased risk of OSSN (summary RR=8.06, 95% CI: 5.29-12.30, I(2)=56.0%, 12 studies). The summary RR estimate for the infection with mucosal HPV subtypes was 3.13 (95% CI: 1.72-5.71, I(2)=45.6%, 16 studies). Four studies addressed the association between both cutaneous and mucosal HPV subtypes and OSSN; the summary RR estimates were 3.52 (95% CI: 1.23-10.08, I(2)=21.8%) and 1.08 (95% CI: 0.57-2.05, I(2)=0.0%), respectively. CONCLUSION Human immunodeficiency virus infection increases the risk of OSSN by nearly eight-fold. Regarding HPV infection, only the cutaneous subtypes seem to be a risk factor.
Collapse
Affiliation(s)
- H Carreira
- 1] Institute of Public Health of the University of Porto, Porto, Portugal [2] Department of Clinical Epidemiology, Predictive Medicine and Public Health of the University of Porto Medical School, Porto, Portugal
| | | | | | | |
Collapse
|
47
|
Early experience after developing a pathology laboratory in Malawi, with emphasis on cancer diagnoses. PLoS One 2013; 8:e70361. [PMID: 23950924 PMCID: PMC3737192 DOI: 10.1371/journal.pone.0070361] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2013] [Accepted: 06/18/2013] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Despite increasing cancer burden in Malawi, pathology services are limited. We describe operations during the first 20 months of a new pathology laboratory in Lilongwe, with emphasis on cancer diagnoses. METHODS AND FINDINGS We performed a cross-sectional study of specimens from the Kamuzu Central Hospital pathology laboratory between July 1, 2011 and February 28, 2013. Patient and specimen characteristics, and final diagnoses are summarized. Diagnoses were categorized as malignant, premalignant, infectious, other pathology, normal or benign, or nondiagnostic. Patient characteristics associated with premalignancy and malignancy were assessed using logistic regression. Of 2772 specimens, 2758 (99%) with a recorded final diagnosis were included, drawn from 2639 unique patients. Mean age was 38 years and 63% were female. Of those with documented HIV status, 51% had unknown status, and 36% with known status were infected. Histologic specimens comprised 91% of cases, and cytologic specimens 9%. Malignant diagnoses were most common overall (n = 861, 31%). Among cancers, cervical cancer was most common (n = 117, 14%), followed by lymphoma (n = 91, 11%), esophageal cancer (n = 86, 10%), sarcoma excluding Kaposi sarcoma (n = 75, 9%), and breast cancer (n = 61, 7%). HIV status was known for 95 (11%) of malignancies, with HIV prevalence ranging from 9% for breast cancer to 81% for cervical cancer. Increasing age was consistently associated with malignancy [bivariable odds ratio 1.24 per decade increase (95% CI 1.19-1.29) among 2685 patients with known age; multivariable odds ratio 1.33 per decade increase (95% CI 1.14-1.56) among 317 patients with known age, gender, and HIV status], while HIV infection and gender were not. CONCLUSIONS Despite selection and referral bias inherent in these data, a new pathology laboratory in Lilongwe has created a robust platform for cancer care and research. Strategies to effectively capture clinical information for pathologically confirmed cancers can allow these data to complement population-based registration.
Collapse
|
48
|
Morhason-Bello IO, Odedina F, Rebbeck TR, Harford J, Dangou JM, Denny L, Adewole IF. Challenges and opportunities in cancer control in Africa: a perspective from the African Organisation for Research and Training in Cancer. Lancet Oncol 2013; 14:e142-51. [PMID: 23561745 DOI: 10.1016/s1470-2045(12)70482-5] [Citation(s) in RCA: 191] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Sub-Saharan Africa has a disproportionate burden of disease and faces a major public-health challenge from non-communicable diseases. Although infectious diseases continue to afflict Africa, the proportion of the overall disease burden in sub-Saharan Africa attributable to cancer is rising. The region is predicted to have a greater than 85% increase in cancer burden by 2030. Approaches to minimise the burden of cancer in sub-Saharan Africa in the past few years have had little success because of low awareness of the cancer burden and a poor understanding of the potential for cancer prevention. Success will not be easy, and will need partnerships and bridges to be built across countries, economies, and professions. A strategic approach to cancer control in sub-Saharan Africa is needed to build on what works there and what is unique to the region. It should ideally be situated within strong, robust, and sustainable health-care systems that offer quality health care to all people, irrespective of their social or economic standing. However, to achieve this will need new leadership, critical thinking, investment, and understanding. We discuss the present situation in sub-Saharan Africa and propose ideas to advance cancer control in the region, including the areas of cancer awareness, advocacy, research, workforce, care, training, and funding.
Collapse
Affiliation(s)
- Imran O Morhason-Bello
- Department of Obstetrics and Gynaecology, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | | | | | | | | | | | | |
Collapse
|
49
|
Maranga IO, Hampson L, Oliver AW, He X, Gichangi P, Rana F, Opiyo A, Hampson IN. HIV Infection Alters the Spectrum of HPV Subtypes Found in Cervical Smears and Carcinomas from Kenyan Women. Open Virol J 2013; 7:19-27. [PMID: 23494633 PMCID: PMC3594704 DOI: 10.2174/1874357901307010019] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2012] [Revised: 11/19/2012] [Accepted: 11/22/2012] [Indexed: 12/12/2022] Open
Abstract
Infection with high risk HPV is implicated in pre-cancerous squamous intraepithelial lesions and their progression to cervical cancer. In the developed countries, infection with HPV 16 and 18 accounts for ~70% of cervical cancers, but it has been established that HPV type prevalence differs according to worldwide geographical location. In sub Saharan Africa infection with HPV is known to be augmented by HIV, which is endemic in this region. It is not yet clear, however, whether this ultimately influences progression to cervical cancer. PapillocheckTM and multiplex PCR were used to determine the range of HPV genotypes found in cervical smears and carcinomas from HIV positive and negative Kenyan women. Smear samples from HIV-positive women had a higher prevalence of: multiple HPV infections; high-risk HPVs 52, 58, 68, potential high risk 53/70, low-risk 44/55 and abnormal cytology compared to HIV-negative women. A low overall prevalence (~8%) of types 16/18 was found in all smear samples tested (n = 224) although this increased in invasive cervical carcinoma tissues to ~80% for HIV-negative and ~46% for HIV-positive women. Furthermore, HPV45 was more common in cervical carcinoma tissues from HIV-positive women. In summary HIV infection appears to alter the spectrum of HPV types found in both cervical smears and invasive cervical carcinomas. It is hypothesised there could be a complex interplay between these viruses which could either positively or negatively influence the rate of progression to cervical cancer.
Collapse
Affiliation(s)
- Innocent O Maranga
- Viral Oncology Laboratories, University of Manchester Institute of Cancer Sciences, Research Floor 5, St Mary's Hospital, Manchester, M13 9WL, UK ; Departments of Obstetrics and Gynaecology, University of Nairobi, Nairobi, Kenya
| | | | | | | | | | | | | | | |
Collapse
|
50
|
Tanon A, Jaquet A, Ekouevi DK, Akakpo J, Adoubi I, Diomande I, Houngbe F, Zannou MD, Sasco AJ, Eholie SP, Dabis F, Bissagnene E. The spectrum of cancers in West Africa: associations with human immunodeficiency virus. PLoS One 2012; 7:e48108. [PMID: 23144732 PMCID: PMC3483170 DOI: 10.1371/journal.pone.0048108] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2012] [Accepted: 09/19/2012] [Indexed: 01/29/2023] Open
Abstract
Background Cancer is a growing co-morbidity among HIV-infected patients worldwide. With the scale-up of antiretroviral therapy (ART) in developing countries, cancer will contribute more and more to the HIV/AIDS disease burden. Our objective was to estimate the association between HIV infection and selected types of cancers among patients hospitalized for diagnosis or treatment of cancer in West Africa. Methods A case-referent study was conducted in referral hospitals in Côte d’Ivoire and Benin. Each participating clinical ward enrolled all adult patients seeking care for a confirmed diagnosis of cancer and clinicians systematically proposed an HIV test. HIV prevalence was compared between AIDS-defining cancers and a subset of selected non-AIDS defining cancers to a referent group of non-AIDS defining cancers not reported in the literature to be positively or inversely associated with HIV. An unconditional logistic model was used to estimate odds ratios (OR) and their 95% confidence intervals (CI) of the risk of being HIV-infected for selected cancers sites compared to a referent group of other cancers. Results The HIV overall prevalence was 12.3% (CI 10.3–14.4) among the 1,017 cancer cases included. A total of 442 patients constituted the referent group with an HIV prevalence of 4.7% (CI 2.8–6.7). In multivariate analysis, Kaposi sarcoma (OR 62.2 [CI 22.1–175.5]), non-Hodgkin lymphoma (4.0 [CI 2.0–8.0]), cervical cancer (OR 7.9 [CI 3.8–16.7]), anogenital cancer (OR 11.6 [CI 2.9–46.3]) and liver cancer (OR 2.7 [CI 1.1–7.7]) were all associated with HIV infection. Conclusions In a time of expanding access to ART, AIDS-defining cancers remain highly associated with HIV infection. This is to our knowledge, the first study reporting a significant association between HIV infection and liver cancer in sub-Saharan Africa.
Collapse
Affiliation(s)
- Aristophane Tanon
- Service de Maladies Infectieuses et Tropicales, CHU de Treichville, Abidjan, Côte d'Ivoire
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|