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Dube Mandishora RS, Rounge TB, Fitzpatrick M, Christiansen IK, Ambur OH, Lagström S, Stray-Pedersen B, Tommasino M, Palefsky J, Chirenje ZM. Self-collected and clinician-collected anal swabs show modest agreement for HPV genotyping. PLoS One 2021; 16:e0250426. [PMID: 33901223 PMCID: PMC8075200 DOI: 10.1371/journal.pone.0250426] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 04/06/2021] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND & AIM Women with HIV/HPV coinfection and cervical lesions are at increased risk of developing HPV related anal cancer. Self-collection of anal swabs may facilitate HPV molecular testing in anal cancer screening, especially in high-risk groups, and yet it is not adequately studied. We evaluated level of agreement between self-collected anal swabs (SCAS) and clinician-collected anal swabs (CCAS) when used for HPV genotyping. We also described the anal HPV genotype distribution and HIV/HPV coinfection. METHODS We performed a cross sectional study with participants from a visual-inspection-with-acetic-acid and cervicography (VIAC) clinic, in Harare, Zimbabwe. In a clinic setting, the women aged ≥18 years provided anal swabs in duplicate; first CCAS and then SCAS immediately after. HPV detection and genotyping were performed using next generation amplicon sequencing of a 450bp region of the HPV L1 gene. Level of agreement of HPV genotypes between CCAS and SCAS was calculated using the kappa statistic. McNemar tests were used to evaluate agreement in the proportion of genotypes detected by either method. RESULTS Three-hundred women provided 600 samples for HPV genotyping. HPV genotypes were detected in 25% of SCAS and in 22% of CCAS. The most common genotypes with CCAS were HPV52, HPV62 and HPV70 and with SCAS were HPV62, HPV44, HPV52, HPV53 and HPV68. Total HPV genotypes detected in CCAS were more than those detected in SCAS, 32 versus 27. The agreement of HPV genotypes between the two methods was 0.55 in kappa value (k). The test of proportions using McNemar gave a Chi-square value of 0.75 (p = 0.39). Multiple HPV infections were detected in 28/75 and 29/67 women for CCAS and SCAS respectively. CONCLUSIONS SCAS and CCAS anal swabs showed moderate agreement, with no statistically significant difference in the proportion of genotypes detected by either methods. Although the differences between the two methods were not statistically significant, CCAS detected more HPV genotypes than SCAS and more HPV infections were detected in SCAS than in CCAS. Our data suggest that self-collected anal swabs can be used as an alternative to clinician-collected anal swabs for HPV genotyping.
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Affiliation(s)
- Racheal S. Dube Mandishora
- Department of Medical Microbiology, University of Zimbabwe College of Health Sciences, Harare, Zimbabwe
- Infections and Cancer Biology Group, International Agency for Research on Cancer, Lyon, France
| | - Trine B. Rounge
- Department of Research, Cancer Registry of Norway, Oslo, Norway
- Department of Informatics, University of Oslo, Oslo, Norway
| | - Megan Fitzpatrick
- Department of Pathology, University of Wisconsin, Madison, Wisconsin, United States of America
| | - Irene Kraus Christiansen
- Department of Microbiology and Infection Control, The Norwegian HPV Reference Laboratory, Akershus University Hospital, Lørenskog, Norway
- Department of Clinical Molecular Biology (EpiGen), Division of Medicine, Akershus University Hospital and University of Oslo, Lørenskog, Norway
| | - Ole Herman Ambur
- Faculty of Health Sciences, OsloMet—Oslo Metropolitan University, Oslo, Norway
| | - Sonja Lagström
- Department of Research, Cancer Registry of Norway, Oslo, Norway
- Department of Microbiology and Infection Control, The Norwegian HPV Reference Laboratory, Akershus University Hospital, Lørenskog, Norway
| | - Babill Stray-Pedersen
- Women’s Clinic, Rikshospitalet, Oslo University Hospital and Institute of Clinical Medicine, Oslo, Norway
| | - Massimo Tommasino
- Infections and Cancer Biology Group, International Agency for Research on Cancer, Lyon, France
| | - Joel Palefsky
- Department of Medicine, UCSF School of Medicine, San Francisco, CA, United States of America
| | - Zvavahera M. Chirenje
- Department of Obstetrics and Gynaecology, University of Zimbabwe College of Health Sciences, Harare, Zimbabwe
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2
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Marques PI, Gonçalves JC, Monteiro C, Cavadas B, Nagirnaja L, Barros N, Barros A, Carvalho F, Lopes AM, Seixas S. Semen quality is affected by HLA class I alleles together with sexually transmitted diseases. Andrology 2019; 7:867-877. [PMID: 31002754 DOI: 10.1111/andr.12625] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 02/28/2019] [Accepted: 03/14/2019] [Indexed: 12/13/2022]
Abstract
BACKGROUND The human leukocyte antigen (HLA) locus includes several genes with key roles in antigen presentation and immune response, some of them inclusively found to be associated with non-obstructive azoospermia. Still, HLA connections to other infertility phenotypes such as semen hyperviscosity (SHV), asthenozoospermia (AST), and oligozoospermia (OLI) have been often neglected. OBJECTIVES In this work, we aimed to evaluate the association of HLA class I and II genes with SHV, AST, and OLI phenotypes while exploring a possible role in an adaptive immune response to sexually transmitted diseases (STD). MATERIALS AND METHODS Whole-exome sequencing was performed in a Portuguese cohort of 71 infertility cases and 68 controls, followed by HLA typing using a specific software-HLA*PRG:LA tool. Molecular screenings of seven STD were carried out in a subset of 72 samples (30 cases and 42 controls). RESULTS Statistical tests uncovered three protective alleles: HLA-A*11:01, associated with all forms of male infertility (p = 0.0006); HLA-DQB1*03:02 with SHV and OLI (PSHV = 0.0303, POLI = 0.0153); and HLA-A*29:02 with OLI (p = 0.0355), which was found to interfere in sperm number together with HPV (p = 0.0313). Five risk alleles were also identified: two linked with SHV (HLA-B*50:01, p = 0.0278; and HLA-C*06:02, p = 0.0461), another one with both SHV and OLI (HLA-DQA1*05:01, PSHV = 0.0444 and POLI =0.0265), and two with OLI (HLA-C*03:03, p = 0.0480; and HLA-DQB1*03:01, p = 0.0499). Here, HLA-C*03:03 carriers tend to be HPV infected. CONCLUSIONS The application of HLA*PRG:LA tool to the study of male infertility provided novel insights for an HLA correlation with semen quality, namely among SHV and OLI phenotypes. The discovery of an HLA-A*29:02/HPV crosstalk, together with former reports of HLA alleles conferring resistance-susceptibility to diverse human pathogens, raises the hypothesis of a mechanistic link between male infertility, HLA polymorphism, and host response to STD.
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Affiliation(s)
- P I Marques
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto (i3S), Porto, Portugal.,Institute of Molecular Pathology and Immunology of the University of Porto (Ipatimup), Porto, Portugal
| | - J C Gonçalves
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto (i3S), Porto, Portugal.,Institute of Molecular Pathology and Immunology of the University of Porto (Ipatimup), Porto, Portugal
| | - C Monteiro
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto (i3S), Porto, Portugal.,Institute of Molecular Pathology and Immunology of the University of Porto (Ipatimup), Porto, Portugal
| | - B Cavadas
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto (i3S), Porto, Portugal.,Institute of Molecular Pathology and Immunology of the University of Porto (Ipatimup), Porto, Portugal.,Institute of Biomedical Sciences Abel Salazar, University of Porto, Porto, Portugal
| | - L Nagirnaja
- Department of Genetics, Washington University School of Medicine, St. Louis, MO, USA
| | - N Barros
- Center for Reproductive Genetics Alberto Barros, Porto, Portugal
| | - A Barros
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto (i3S), Porto, Portugal.,Center for Reproductive Genetics Alberto Barros, Porto, Portugal.,Genetics, Department of Pathology, Faculty of Medicine, University of Porto, Porto, Portugal
| | - F Carvalho
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto (i3S), Porto, Portugal.,Genetics, Department of Pathology, Faculty of Medicine, University of Porto, Porto, Portugal
| | - A M Lopes
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto (i3S), Porto, Portugal.,Institute of Molecular Pathology and Immunology of the University of Porto (Ipatimup), Porto, Portugal
| | - S Seixas
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto (i3S), Porto, Portugal.,Institute of Molecular Pathology and Immunology of the University of Porto (Ipatimup), Porto, Portugal
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3
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Lee TS, Kothari-Talwar S, Singhal PK, Yee K, Kulkarni A, Lara N, Roset M, Giuliano AR, Garland SM, Ju W. Cross-sectional study estimating the psychosocial impact of genital warts and other anogenital diseases in South Korea. BMJ Open 2019; 9:e025035. [PMID: 30898815 PMCID: PMC6475443 DOI: 10.1136/bmjopen-2018-025035] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
OBJECTIVES To estimate self-reported human papillomavirus (HPV) disease-related psychosocial impact among male and female patients in South Korea. DESIGN In this multicentre cross-sectional study, psychosocial impacts were estimated using a one-time survey capturing HPV Impact Profile (HIP) results, CuestionarioEspecifico en Condilomas Acuminados (CECA; in Spanish)-'Specific questionnaire for Condylomata Acuminata' and the EuroQol-5 Dimension (EQ-5D) surveys. Student's t-tests or Mann-Whitney U tests were used for continuous comparisons; χ2 or Fisher's exact tests were applied for categorical comparisons. SETTING 5098 clinics throughout Seoul, Busan, Daegu, Kwangju and Daejeon (South Korea). PARTICIPANTS Patients with and without genital warts (GW) (males) and selected HPV diseases (females) visiting primary care physicians, obstetricians/gynaecologists, urologists and dermatologists with 2-30 years experience. RESULTS Of 150 male and 250 female patients, HIP scores showed 85.3% of male patients with GW and 32.0% without reported moderate psychological impact (p<0.0001). In categorised total scores, 88.5% of female patients with and 66.0% without selected HPV-related diseases reported moderate or high psychological impacts (p=0.0004). In the CECA questionnaire, male patients had mean (SD) scores of 10.51 (3.79) in 'emotional health' and 15.90 (6.13) in 'sexual activity'. Female patients with GW reported lower scores in both dimensions with mean scores of 7.18 (4.17) in 'emotional health' and 10.97 (5.80) in 'sexual activity' (p<0.0001), indicating worse health-related quality of life (HRQoL). For the EQ-5D, male patients with GW reported lower mean Visual Analogue Scale (VAS) scores than those without (75.1 vs 81.13, p<0.0135). Mean VAS score and utility values were lower for females with HPV-related diseases than those without (72.18 vs 76.86 and 0.90 vs 0.94, respectively). CONCLUSION In South Korea, GW in men and HPV-related diseases in women negatively impact patient well-being and HRQoL scores. Among women, those with GW suffered a greater psychosocial impact than those with other selected HPV-related diseases.
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Affiliation(s)
- Taek Sang Lee
- Department of Obstetrics and Gynecology, SMG-SNU Boramae Medical Center, Seoul, South Korea
| | | | | | - Karen Yee
- Cubist Pharmaceuticals Inc, Lexington, Massachusetts, USA
| | | | - Nuria Lara
- Real World Evidence Solutions, IQVIA, Barcelona, Spain
| | | | - Anna R Giuliano
- Lee Moffitt Cancer Center and Research Institute, Tampa, Florida, USA
| | - Suzanne M Garland
- Microbiology and Infectious Diseases Department, The Royal Women’s Hospital, Parkville, Victoria, Australia
| | - Woong Ju
- School of Medicine, Ewha Womans University, Seoul, South Korea
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Sichero L, El-Zein M, Ferreira S, Franco EL, Villa LL. Lack of Association between Human Papillomavirus Types 6 and 11 Genetic Variants and Cervical Abnormalities: The Ludwig-McGill Cohort Study. Cancer Epidemiol Biomarkers Prev 2019; 28:1086-1088. [PMID: 30867221 DOI: 10.1158/1055-9965.epi-19-0114] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 03/06/2019] [Accepted: 03/07/2019] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Human papillomavirus (HPV) types 6 and 11 are mainly associated with the development of genital warts and recurrent respiratory papillomatosis. We examined intratypic genetic variability of both viral types with the development of cervical cytologic abnormalities in Brazilian women. METHODS We used PCR sequencing to characterize variants of HPVs 6 and/or 11 in cervical swabs from women in the Ludwig-McGill Cohort Study. We used a binomial generalized estimating equations (GEE) model with logit link to estimate odds ratios (OR) and 95% confidence intervals (CI) for the associations between HPV 6 and 11 variants and cytologic abnormalities. RESULTS B1 and B3 HPV6 and A2 HPV11 variants were the most common isolates identified. Compared with HPV6-negative women, the ORs among women harboring HPV6 B1 or B3 variants were 6.3 (95% CI, 2.3-17.0) and 2.3 (95% CI, 0.6-9.7) for atypical cells of undetermined significance (ASCUS)/low squamous intraepithelial lesions (LSIL), respectively, and 1.7 (95% CI, 0.6-5.1) and 1.2 (95% CI, 0.3-4.7) for ASCUS/LSIL/high squamous intraepithelial lesions (HSIL). Respective ORs were 5.0 (95% CI, 1.7-14.6) and 2.8 (95% CI, 1.0-8.1) upon comparing women with HPV11 A2 variants to HPV11-negative women. All associations disappeared when adjusting for coinfections with high-risk HPV types. CONCLUSIONS Our data do not support an association between low-risk HPVs 6 and 11 genetic variability and cervical abnormalities. IMPACT Risk of cervical cytologic abnormalities is not affected by intratypic polymorphism in HPVs 6 and 11.
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Affiliation(s)
- Laura Sichero
- Center for Translational Investigation in Oncology, Instituto do Cancer do Estado de Sao Paulo, Hospital das Clinicas da Faculdade de Medicina da Universidade de Sao Paulo, São Paulo, Brazil.
| | - Mariam El-Zein
- Division of Cancer Epidemiology, McGill University, Montreal, Canada
| | - Silvaneide Ferreira
- Center for Translational Investigation in Oncology, Instituto do Cancer do Estado de Sao Paulo, Hospital das Clinicas da Faculdade de Medicina da Universidade de Sao Paulo, São Paulo, Brazil
| | - Eduardo L Franco
- Division of Cancer Epidemiology, McGill University, Montreal, Canada
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5
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Yao Y, Yan Z, Dai S, Li C, Yang L, Liu S, Zhang X, Shi L, Yao Y. Human Papillomavirus Type 16 E1 Mutations Associated with Cervical Cancer in a Han Chinese Population. Int J Med Sci 2019; 16:1042-1049. [PMID: 31341418 PMCID: PMC6643129 DOI: 10.7150/ijms.34279] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Accepted: 05/30/2019] [Indexed: 12/20/2022] Open
Abstract
Human papillomavirus type 16 (HPV16) is a high-risk HPV type and a potent carcinogen. HPV E1 is one of the most highly conserved proteins and it plays a central role in initiating HPV DNA replication. In current study, we enrolled 161 HPV16-positive cervical cancer patients (case group) and 171 HPV16-positive asymptomatic individuals (control group) in a study to analyse the association between HPV16 E1 genetic mutations and cervical cancer. The samples of case group were cervical cancer tissues and the samples of control group were cervical exfoliated cells. Three variants (A4, A1-A3 and D3) were found in the case group, 68.3% of the HPV16 E1 sequences belonged to the A4 (As) sub-lineage, 29.2% belonged to the A1-A3 (EUR) sub-lineage, and 2.5% belonged to the D3 (AA1) sub-lineage. Two variants (A4 and A1-A3) occurred in the control group. The A4 (As) sub-lineage was predominant in this group as well (66.1%), followed by the A1-A3 (EUR) sub-lineage (33.9%), but the D3 (AA1) sub-lineage was not found in the control group. The distribution of the HPV16 variants between the case and control groups was significantly different (P<0.05). When the distribution of the HPV16 E1 gene mutations was compared, the distribution of twenty-seven mutations was significantly different between the case and control groups (P<0.05), and twenty-two mutations occurred only in the D3 (AA1) sub-lineage, two were found only in the A4 (As) sub-lineage, one was found in the A1-A3 (EUR) sub-lineage, two was found in both the A4 (As) and A1-A3 (EUR) sub-lineages. In the sub-lineage analysis, the differences in the T933A (A23A), T1014G (D50E) and G2160A (R432R) mutations were statistically significant between the case and control groups for the A4 (As) sub-lineage (P<0.05), and the differences in the T2232C (F456F), G2337A (M491I) and A2547G (P561P) mutations were statistically significant between the case and control groups for the A1-A3 (EUR) sub-lineage (P<0.05). In the current study, we describe specific mutations in the HPV16 E1 gene associated with cervical cancer, and our study will provide a good reference for further functional studies of the relationship between cervical cancer carcinogenesis and HPV genes.
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Affiliation(s)
- Yueting Yao
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Kunming 650118, Yunnan, China
| | - Zhiling Yan
- Department of Gynaecologic Oncology, The 3rd Affiliated Hospital of Kunming Medical University, Kunming 650118, China
| | - Shuying Dai
- School of Basic Medical Science, Kunming Medical University, Kunming 650500, China
| | - Chuanyin Li
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Kunming 650118, Yunnan, China
| | - Longyu Yang
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Kunming 650118, Yunnan, China
| | - Shuyuan Liu
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Kunming 650118, Yunnan, China
| | - Xinwen Zhang
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Kunming 650118, Yunnan, China
| | - Li Shi
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Kunming 650118, Yunnan, China
| | - Yufeng Yao
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Kunming 650118, Yunnan, China
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6
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Combes JD, Franceschi S. Human papillomavirus genome variants and head and neck cancers: a perspective. Infect Agent Cancer 2018; 13:13. [PMID: 29643933 PMCID: PMC5891965 DOI: 10.1186/s13027-018-0185-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Accepted: 03/27/2018] [Indexed: 12/22/2022] Open
Abstract
Human papillomaviruses (HPV) cause infections that are responsible for diverse clinical manifestations from benign conditions to invasive cancer. As different HPV types are associated with variable pathogenic potential, minor genetic variations within a given high-risk HPV type might also be associated with distinct oncogenic capacities, through variable ability of persistence or risk of progression to precancer/cancer. Most recent HPV variant studies in the cervix using latest sequencing technology confirmed that minor changes in the HPV genome can have a major influence on carcinogenesis and have revealed key data that help better understand the carcinogenicity of HPV at a molecular level. Here we review the limited number of studies on HPV genome variants in head and neck cancers (HNC) and discuss their implications for cancer research in the light of accumulated knowledge for the cervix. Challenges in transposing HPV variant studies from the lower anogenital to the upper aerodigestive tract are also discussed, highlighting the main gaps of knowledge in the field of HPV-induced HNC. Specifically in the head and neck region, the lack of characterisation of precancerous lesions and the difficulty in sampling normal tissue will challenge the development of accurate studies. Although there is so far no indication that HPV variant research in HNC could directly translate into clinical application, such research is expected to be useful to disentangle unanswered questions in the pathogenesis of HNC. Yet, history of HPV variant research suggests that, to be successful, studies will require large international collaborative efforts.
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Affiliation(s)
- Jean-Damien Combes
- International Agency for Research on Cancer, 150 cours Albert Thomas, 69372 Cedex 08 Lyon, France
| | - Silvia Franceschi
- Cancer Epidemiology Unit, CRO Aviano National Cancer Institute IRCCS, Via Franco Gallini 2, 33081 Aviano, PN Italy
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7
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Flores-Díaz E, Sereday KA, Ferreira S, Sirak B, Sobrinho JS, Baggio ML, Galan L, Silva RC, Lazcano-Ponce E, Giuliano AR, Villa LL, Sichero L, The Him Study Group. HPV-11 variability, persistence and progression to genital warts in men: the HIM study. J Gen Virol 2017; 98:2339-2342. [PMID: 28809141 DOI: 10.1099/jgv.0.000896] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
HPV-11 and HPV-6 are the etiological agents of about 90 % of genital warts (GWs). The intra-typic variability of HPV-11 and its association with infection persistence and GW development remains undetermined. Here, HPV infection in men (HIM) participants who had an HPV-11 genital swab and/or GW, preceded or not by a normal skin genital swab were analysed. Genomic variants were characterized by PCR-sequencing and classified within lineages (A, B) and sublineages (A1, A2, A3, A4). HPV-11 A2 variants were the most frequently detected in the genital swab samples from controls and in both genital swabs and GW samples from cases. The same HPV-11 variant was detected in the GW sample and its preceding genital swab. There was a lack of association between any particular HPV-11 variant and the increased risk for GW development.
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Affiliation(s)
- Ema Flores-Díaz
- Molecular Biology Laboratory, Center for Translational Research in Oncology, Instituto do Cancer do Estado de Sao Paulo, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil.,Present address: Institute for Research in Immunology and Cancer-IRIC; Molecular Biology Program, Faculty of Medicine, University of Montreal, Montreal, Quebec, Canada
| | - Karen A Sereday
- Department of Cancer Epidemiology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA
| | - Silvaneide Ferreira
- Molecular Biology Laboratory, Center for Translational Research in Oncology, Instituto do Cancer do Estado de Sao Paulo, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Bradley Sirak
- Department of Cancer Epidemiology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA
| | - João Simão Sobrinho
- Molecular Biology Laboratory, Center for Translational Research in Oncology, Instituto do Cancer do Estado de Sao Paulo, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Maria Luiza Baggio
- Molecular Biology Laboratory, Center for Translational Research in Oncology, Instituto do Cancer do Estado de Sao Paulo, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Lenice Galan
- Ludwig Institute for Cancer Research, São Paulo branch, São Paulo, Brazil
| | - Roberto C Silva
- Centro de Referência e Treinamento DST/Aids, São Paulo, Brazil
| | - Eduardo Lazcano-Ponce
- Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Cuernavaca, Mexico
| | - Anna R Giuliano
- Department of Cancer Epidemiology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA
| | - Luisa L Villa
- Molecular Biology Laboratory, Center for Translational Research in Oncology, Instituto do Cancer do Estado de Sao Paulo, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil.,Department of Radiology and Oncology, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil
| | - Laura Sichero
- Molecular Biology Laboratory, Center for Translational Research in Oncology, Instituto do Cancer do Estado de Sao Paulo, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
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