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1.
PLoS One ; 14(12): e0225571, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31805074

RESUMO

OBJECTIVE: To estimate the prevalence, incidence and persistence of anal HPV infection and squamous intra-epithelial lesions (SILs) among men living with HIV (MLHIV), and determine their risk factors. METHODS: We enrolled MLHIV ≥18 years, who attended 6-monthly visits for 18 months. Socio-behavioural data were collected by questionnaire. Clinicians collected blood sample (CD4+ count and HIV plasma viral load), anal swabs (HPV DNA testing) and anal smears (Bethesda classification) at each visit. HPV DNA testing and classification of smears were done at enrolment and last follow-up visit (two time points). Factors associated with persistent anal HPV infection and SILs were evaluated with generalized estimating equations logistic regression and standard logistic regression respectively. RESULTS: Mean age of 304 participants was 38 (Standard Deviation, 8) years; 25% reported >1 sexual partner in the past 3 months. Only 5% reported ever having sex with other men. Most (65%) participants were taking antiretroviral treatment (ART), with a median CD4+ count of 445 cells/µL (IQR, 328-567). Prevalence of any-HPV infection at enrolment was 39% (88/227). In total, 226 men had anal HPV DNA results at both enrolment and final visits. Persistence of any-anal HPV infection among 80 men who had infection at enrolment was 26% (21/80). Any persistent anal HPV infection was more frequent among MLHIV with low CD4+ count (<200 vs. >500 cells/µL; aOR = 6.58; 95%CI: 2.41-17.94). Prevalence of anal SILs at enrolment was 49% (118/242) while incidence of SILs among MLHIV who had no anal dysplasia at enrolment was 27% (34/124). Of the 118 men who had anal dysplasia at enrolment, 15% had regressed and 38% persisted by month 18. Persistent anal HPV infection was associated with persistent SILs (aOR = 2.95; 95%CI: 1.08-10.89). ART status or duration at enrolment were not associated with persistent anal HPV infection or persistent SILs during follow-up. CONCLUSION: In spite of a high prevalence of anal HPV, HIV-positive heterosexual men have a low burden of anal HPV related disease. HPV vaccine and effective ART with immunological reconstitution could reduce this burden of infection.


Assuntos
Canal Anal/virologia , Doenças do Ânus/epidemiologia , Infecções por HIV/epidemiologia , Infecções por Papillomavirus/epidemiologia , Lesões Intraepiteliais Escamosas/epidemiologia , Adulto , Estudos de Coortes , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Prevalência , Fatores de Risco , África do Sul/epidemiologia
2.
Pediatr Transplant ; 23(5): e13470, 2019 08.
Artigo em Inglês | MEDLINE | ID: mdl-31081227

RESUMO

The prevalence, clinical significance, and spectrum of many HPV genotypes are currently largely untapped. We report a case of anal condyloma associated with a rare HPV genotype in a 11-year-old kidney transplant recipient. Eleven months post-graft, rectal bleeding revealed a 5-cm-large anal condyloma for which immuno-histopathology revealed typical papillomatosis. HPV genotyping performed on anal biopsy identified a HPV type 7, for which a single sequence was found in the GenBank sequence database. HPV7 is classically found in hand cutaneous warts, but HPV7-associated condyloma was only described in two patients. Total resection of the anal lesion was performed by electrocoagulation with no recurrence after 6 years. Post-transplant immunosuppression may promote anal condyloma with uncommon HPV types. HPV genotyping in such lesions is useful to get a better understanding of the epidemiology and clinical significance of such unusual HPV types as HPV7.


Assuntos
Doenças do Ânus/virologia , Condiloma Acuminado/virologia , Transplante de Rim , Infecções por Papillomavirus/virologia , Doenças do Ânus/genética , Doenças do Ânus/imunologia , Criança , Condiloma Acuminado/genética , Condiloma Acuminado/imunologia , Humanos , Terapia de Imunossupressão/métodos , Masculino , Infecções por Papillomavirus/genética , Infecções por Papillomavirus/imunologia
3.
Sex Transm Dis ; 46(5): 347-353, 2019 05.
Artigo em Inglês | MEDLINE | ID: mdl-30985636

RESUMO

OBJECTIVE: To estimate the incidence; persistence and correlates of human papillomavirus (HPV) infection and anogenital warts (AGW) among men living with human immunodeficiency virus (MLHIV). METHODS: Overall, 304 MLHIV 18 years or older were enrolled and attended follow-up visits at 6, 12, and 18 months. Clinicians examined for AGW, collected blood, and penile swabs for HPV testing (Roche Linear Array) at each visit. Time to AGW incidence or clearance was estimated by Kaplan-Meier method. Factors associated with persistent HPV infection and AGW clearance were evaluated with generalized estimating equations and Cox regression, respectively. RESULTS: Mean age of participants was 38 years (standard deviation, 8 years); 25% reported more than 1 sexual partner in the past 3 months. Most (65%) participants were on antiretroviral treatment (ART) with a median CD4 count of 445 cells/µL (interquartile range, 328-567). Prevalence of HPV infection and AGW at enrolment were 79% (224 of 283) and 12% (36 of 304), respectively. Two hundred fifty-nine men were followed up for a median (interquartile range) 1.4 years (0.5-1.7 years). Incidence of any-genital HPV infection was 2.9 (95% confidence interval, 1.5-5.5) per 100 person-years. Persistence of any-genital HPV infection was 35% (68 of 192) and was higher among MLHIV with low CD4 count (adjusted odds ratio, 3.54; 95% confidence interval, 2.07-6.05). Incidence of AGW was 1.4 per 100 person-years. Men living with human immunodeficiency virus with high CD4 count were more likely to clear AGW than those with low CD4 count (adjusted hazard ratio, 3.69; 95% confidence interval, 1.44-9.47). No associations were observed between persistent genital HPV infection, AGW clearance with enrolment ART status or duration. CONCLUSIONS: Human immunodeficiency virus-positive men have a high burden of genital HPV infection and AGW. The ART and HPV vaccine could reduce this burden.


Assuntos
Condiloma Acuminado/epidemiologia , Infecções por HIV/complicações , HIV/imunologia , Infecções por Papillomavirus/epidemiologia , Infecções Sexualmente Transmissíveis/epidemiologia , Adolescente , Contagem de Linfócito CD4 , Estudos de Coortes , Condiloma Acuminado/complicações , Condiloma Acuminado/virologia , Genitália/virologia , Homossexualidade Masculina , Humanos , Incidência , Masculino , Infecções por Papillomavirus/complicações , Infecções por Papillomavirus/virologia , Prevalência , Parceiros Sexuais , Infecções Sexualmente Transmissíveis/complicações , Infecções Sexualmente Transmissíveis/virologia , África do Sul/epidemiologia , Adulto Jovem
4.
Am J Trop Med Hyg ; 100(6): 1552-1555, 2019 06.
Artigo em Inglês | MEDLINE | ID: mdl-30994102

RESUMO

Vaginal self-sampling and human papillomavirus (HPV) DNA testing can be useful tools for women with limited access to health care living in sub-Saharan Africa. To assess the feasibility and acceptability of vaginal self-sampling and high-risk HPV prevalence in two villages of central Senegal, women were asked to self-sample vaginal swabs for HPV detection in May, 2016. Vaginal swabs were collected from 133 women and were tested for HPV genotyping. The acceptability rate of vaginal self-sampling was 98.5%, and 99.2% of the women (133/134) used the device correctly. The quality of self-sampling was satisfactory in 100% of the samples; 10.5% of the samples were positive for HPV, including 6% with high-risk HPV types and 4% with low-risk HPV types. This preliminary study indicates that vaginal self-sampling is a valuable strategy for high-risk HPV detection and cervical cancer screening in a population of women not attending gynecologic screening in rural areas of Senegal.


Assuntos
Papillomaviridae/isolamento & purificação , Infecções por Papillomavirus/diagnóstico , População Rural , Manejo de Espécimes , Doenças Vaginais/virologia , Esfregaço Vaginal/normas , Adulto , Detecção Precoce de Câncer , Estudos de Viabilidade , Feminino , Humanos , Pessoa de Meia-Idade , Papillomaviridae/classificação , Infecções por Papillomavirus/epidemiologia , Infecções por Papillomavirus/virologia , Aceitação pelo Paciente de Cuidados de Saúde , Senegal/epidemiologia , Doenças Vaginais/epidemiologia
6.
Future Microbiol ; 12: 609-620, 2017 06.
Artigo em Inglês | MEDLINE | ID: mdl-28604063

RESUMO

Gynecological health is a challenge in low-income countries. Personal opposition to perineal examination has been overcome by the use of vaginal self-sampling. Here, we review the use of this procedure notably in low-income countries and the main infectious causes of miscarriage. Vaginal self-sampling was mainly used for human papillomavirus detection but also to detect microorganisms causing sexually transmitted infections or bacterial vaginosis. 58 studies have been performed in low-resource countries, mainly studies performed to detect human papillomavirus in urban and peri-urban areas and demonstrating excellent acceptability. Several infectious causes of miscarriage could be tested using self-vaginal samples. In the future, such strategies coupled with a rapid-identification point-of-care method could allow the development of screening and treatment programs in rural areas in low-resource countries.


Assuntos
Aborto Espontâneo/microbiologia , Autoexame , Infecções Sexualmente Transmissíveis/diagnóstico , Manejo de Espécimes/métodos , Vagina/microbiologia , Vaginose Bacteriana/diagnóstico , Aborto Espontâneo/virologia , Adulto , Países em Desenvolvimento , Feminino , Humanos , Listeria monocytogenes/isolamento & purificação , Papillomaviridae/isolamento & purificação , Sistemas Automatizados de Assistência Junto ao Leito , Pobreza , Gravidez , Infecções Sexualmente Transmissíveis/complicações , Infecções Sexualmente Transmissíveis/microbiologia , Infecções Sexualmente Transmissíveis/virologia , Vagina/virologia , Vaginose Bacteriana/complicações
7.
Intervirology ; 59(2): 118-122, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27923228

RESUMO

OBJECTIVES: Anal cancer incidence is increasing among HIV-positive patients. No consensus currently exists for the screening of anal dysplasia. This study aimed at evaluating the feasibility and acceptability of anal self-sampling and assessing the prevalence of human papillomavirus (HPV) types among HIV-positive patients from Marseille University Hospitals. METHODS: Between October 2013 and March 2014, during their regular visits for the monitoring of their HIV infection in an HIV outpatient clinical unit of Marseille University Hospitals, patients were asked to self-sample anal swabs for HPV detection. A specimen self-collection kit was provided. HPV detection and genotyping were performed using in-house protocols. The quality of self-sampling was assessed by concurrent cellular quantification in collected samples. RESULTS: The acceptability rate of anal self-sampling was 91%, and 91% of the self-sampled specimens were appropriate for HPV screening. In addition, 76% of the samples were positive for HPV, including 54% of HPV types with oncogenic potential. CONCLUSIONS: This study indicates that HPV detection and typing through anal self-sampling is a valuable strategy to screen patients at high risk for anal cancer development. This could allow earlier management of anal lesions and related cancer in patients at high risk for HPV.


Assuntos
Doenças do Ânus/diagnóstico , Neoplasias do Ânus/prevenção & controle , Infecções por HIV/complicações , Infecções por Papillomavirus/complicações , Infecções por Papillomavirus/diagnóstico , Manejo de Espécimes/métodos , Adulto , Idoso , Doenças do Ânus/complicações , Doenças do Ânus/virologia , Neoplasias do Ânus/diagnóstico , Neoplasias do Ânus/virologia , DNA Viral/isolamento & purificação , Estudos de Viabilidade , Feminino , França/epidemiologia , Genótipo , Infecções por HIV/virologia , Papillomavirus Humano 16/classificação , Papillomavirus Humano 16/isolamento & purificação , Humanos , Masculino , Programas de Rastreamento/métodos , Pessoa de Meia-Idade , Ambulatório Hospitalar , Infecções por Papillomavirus/epidemiologia , Infecções por Papillomavirus/virologia , Prevalência
8.
J Clin Virol ; 78: 102-7, 2016 May.
Artigo em Inglês | MEDLINE | ID: mdl-27015435

RESUMO

BACKGROUND: HPV vaginal self-sampling can be an alternative for women refusing cytological screening. OBJECTIVES: To describe HR-HPV types in 35-69 years old women from low socioeconomic groups not attending regular cytological screening in Marseille, France. STUDY DESIGN: A cervical screening campaign using HR-HPV self-sampling including 22,702 women aged 35-69 years living in low socioeconomic districts of Marseille was organized. A cytological and/or histological follow-up was undertaken for a subset of women harboring HR-HPV types. Abbott RealTime High Risk HPV test was used for screening, while INNO-LiPA HPV Genotyping Extra assay was used for genotyping. RESULTS: 4245 self-samplings were performed (participation rate, 18.7%) out of which 609 (14.3%) were HR-HPV+ by the screening test including 114HPV 16 (18.7%), 41HPV 18 (6.7%), 454HR-HPVnon-16/18 (75.4%). A sample of 260 out of the 454HR-HPVnon-16/18 were genotyped by INNO-LiPA which revealed HPV52 (35%), 66 (22.6%), 51 (19.6%), 31 (15.7%), 39 (13%), 56 (10.4%), and 53, 35, 59, 33, 58, 82, 45, 68, 73 (<10% each). At month 12, a 2nd self-collection kit was sent to 274 of 609HR-HPV+ women who did not have a Pap-test previously performed on them. Of these 274 women, 130 provided a sample for HPV testing; one was uninterpretable, 56 were HPV negative, and 73 were HR-HPV+ (10HPV16+, 3HPV18+, 60HR-HPVnon-16/18+). Of the 345 women with cytological and/or histological follow-up 19 (5.5%) had ≥CIN2 lesions, (11 were HPV16+ and 8 were HR-HPVnon-16/18). CONCLUSION: This study illustrates the potential efficacy of self-sampling as a cancer screening strategy for socioeconomically deprived women who do not participate in regular Pap screening programs.


Assuntos
Genótipo , Papillomaviridae/classificação , Papillomaviridae/isolamento & purificação , Infecções por Papillomavirus/epidemiologia , Infecções por Papillomavirus/virologia , Autoadministração , Manejo de Espécimes/métodos , Adulto , Idoso , Feminino , França/epidemiologia , Humanos , Pessoa de Meia-Idade , Papillomaviridae/genética , Infecções por Papillomavirus/diagnóstico , Classe Social , Vagina/virologia
9.
Virology ; 484: 354-363, 2015 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-26186574

RESUMO

BACKGROUND/AIMS: Virological factors associated with hepatitis B virus reactivation (HBV-R), following chemotherapy for cancer in hepatitis B surface antigen (HBsAg)-negative patients, are not well known. MATERIALS AND METHODS: HBV strains from 16 patients presenting HBV-R following chemotherapy were studied and compared to those obtained from 51 HBV chronically-infected patients. RESULTS: HBsAg variability was significantly increased within the major hydrophilic region, the a determinant and the C-terminal region. Amino acid substitutions were more frequently found in HBV-R patients as compared to controls at 17 and 11 positions within HBsAg and HBV-RT, respectively. This resulted in atypical serological testing in 56% of patients and detection of resistance mutation to nucleoside analogs in 12.5%. CONCLUSION: HBsAg and HBV-RT mutations are frequently encountered in patients with HBV-R, resulting in atypical serological testing and emergence of HBV strains resistant to nucleos(t)ides analogs.


Assuntos
Antígenos de Superfície da Hepatite B/sangue , Antígenos de Superfície da Hepatite B/genética , Vírus da Hepatite B/fisiologia , DNA Polimerase Dirigida por RNA/genética , Ativação Viral , Adulto , Idoso , Antineoplásicos/uso terapêutico , Feminino , Vírus da Hepatite B/genética , Humanos , Masculino , Pessoa de Meia-Idade , Proteínas Mutantes/genética , Neoplasias/tratamento farmacológico
10.
J Med Virol ; 87(8): 1389-96, 2015 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-25908062

RESUMO

Better understanding of the correlation between high-risk HPV DNA testing, viral load quantitation, and E6/E7 mRNA detection is required. The aim of this study was to assess the relationship between these markers and the severity of cervical lesions. One-hundred and fifty one directed cervical specimens were analysed (normal, cervical intraepithelial neoplasia, and cancer). HPV types 16, 18, 31, 33, and 45 DNA detection and quantititation and E6/E7 mRNA detection were performed. DNA was detected in 87 (57.6%) samples and increased from 0% (normal) to 93.9% (cancer). E6/E7 mRNA was detected in 65 (43%) samples and increased with the severity of the lesions from 0% (normal) to 78.8% (26/33) (cancers) (P < 0.001). HPV DNA and E6/E7 mRNA detection were compared in the 141 samples harbouring HPV16, 18, 31, 33, or 45 infection: 45.4% (64/141) of specimens were DNA-/mRNA-, 46% (65/141) were DNA + /mRNA+ and 8.5% (12/141) were DNA + /mRNA-. The proportion of DNA + /mRNA+ specimens increased with the severity of the lesions (P < 0.001). All normal cervix specimens were DNA-/mRNA-. Among grade 2 cervical intraepithelial neoplasia, prevalence of DNA was higher than that of mRNA: 41.6% (5/12) versus 25% (3/12), whereas it was 79.3% (46/58) versus 62% (36/58) among grade 3 cervical intraepithelial neoplasia. Full concordance was observed in cancers as all the 26 DNA+ specimens were mRNA +. Median overall HPV load was higher in DNA + /mRNA+ than in DNA + /mRNA- specimens (1.41 × 10(6) vs. 9.1 × 10(2) copies per million cells, P < 0.001). Both E6/E7 mRNA detection and concordant DNA + /mRNA+ detection increases with the severity of the lesions and with the HPV DNA load.


Assuntos
Proteínas Oncogênicas Virais/biossíntese , Papillomaviridae/isolamento & purificação , Infecções por Papillomavirus/complicações , Infecções por Papillomavirus/patologia , RNA Mensageiro/análise , Índice de Gravidade de Doença , Neoplasias do Colo do Útero/patologia , Adulto , Idoso , Estudos Transversais , Feminino , Perfilação da Expressão Gênica , Humanos , Pessoa de Meia-Idade , Proteínas Oncogênicas Virais/genética , Papillomaviridae/genética , Infecções por Papillomavirus/virologia , RNA Mensageiro/genética , RNA Viral/análise , RNA Viral/genética , Neoplasias do Colo do Útero/virologia
11.
Int J Infect Dis ; 29: 241-3, 2014 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-25461665

RESUMO

OBJECTIVES: We aimed to seek HIV sequences highly similar to CRF56-cpx, a recently described newly circulating B/CRF02/G recombinant HIV, in our local clinical microbiology laboratory sequence database. METHODS: A recently implemented tool that combines a databank of all HIV nucleotide sequences obtained at our clinical microbiology laboratory with a search tool that uses BLAST was used. A comparative and phylogenetic analysis of HIV protease and reverse transcriptase fragments was performed. RESULTS: We identified two sequences that were clustered with CRF56-cpx with a bootstrap value of 99% in phylogenetic analyses; these were obtained from two patients diagnosed with HIV in 2009-2011. HIV protease-reverse transcriptase sequences obtained from these two patients shared a mean identity of 98.2±0.2% with previously described CRF56-cpx sequences. Both case patients diagnosed with HIV in our centre were highly sexually active men who have sex with men. CONCLUSIONS: Our findings highlight the continuous expansion of HIV diversity in France and indicate that real-time surveillance of HIV molecular epidemiology, including the comparison of sequences from laboratory, national, and international databases, might be helpful to identify the emergence, circulation, and transmission of viral strains.


Assuntos
HIV/isolamento & purificação , Adulto , Sequência de Bases , França , HIV/genética , Infecções por HIV/virologia , Humanos , Masculino , Filogenia , Alinhamento de Sequência , Adulto Jovem
12.
AIDS Res Ther ; 11(1): 33, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-25320633

RESUMO

BACKGROUND: Ongoing HIV-1 replication in lymphoid cells is one explanation of the persistence of HIV-1 reservoirs despite highly active antiretroviral therapy (cART). We tested the potential of cART intensification by Maraviroc plus Raltegravir to decrease proviral HIV-1 DNA levels in lymphoid cells during a randomized trial. PATIENTS AND METHODS: We randomly assigned for 48 weeks 22 patients to continue their current first line regimen of Truvada® plus Kaletra® or intensify it with Maraviroc and Raltegravir. The primary objective was to obtain a 50% decrease in proviral HIV-1 DNA levels in lymphoid cells with intensification. Blood samples were drawn at W-2, W0, W2, W4, W12, W24 and W48. Plasma viremia, cellular proviral DNA and cellular RNA, 2-LTR circles and lymphocytes subsets were assayed using validated methods. Patients in the intensified group underwent a gut biopsy at baseline and W48 to measure proviral DNA levels. Statistical analysis used parametric and non-parametric tests. RESULTS: Ten patients in each arm completed the trial. The 2 populations were comparable at baseline. No change in the reservoir size was observed in the intensified arm compared to the control arm measured in peripheral blood mononuclear cells (PBMCs). No change in the reservoir size was observed in gut proviral DNA in the intensified arm. In this group, no increase in 2-LTR circles was observed as early as 2 weeks after intensification and no change was found in residual plasma RNA levels measured by the single copy assay. However, a decrease in CD8(+) T cells activation was observed at 24 and 48 weeks, as well as in PBMCs HIV-1 RNA levels. CONCLUSION: We conclude that the intensification of a Protease Inhibitor regimen with Maraviroc and Raltegravir does not impact the blood proviral DNA reservoir of HIV but can decrease the cell-associated HIV RNA, the CD8 activation and has a possible impact on rectal proviral HIV DNA in some patients. TRIAL REGISTRATION: ClinicalTrials.gov identifier number NCT00935480.

13.
J Med Virol ; 86(3): 419-25, 2014 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-24154930

RESUMO

Natural history of anal intraepithelial neoplasia and anal cancer is not fully understood. Factors associated with cytological abnormalities and predictors of progression to high-grade anal intraepithelial neoplasia still deserve investigation. The aim of this cross-sectional study was to assess the prevalence of HPV types, the relationship between HPV genotypes, HPV 16/18 viral load and cytological abnormalities in male and female HIV-infected patients. One hundred and twenty-two (72.6%) patients were infected with HPV, 75 (61%) had multiple HPV infection, and 94 (77%) had high-risk HPV infection. The most frequently identified HPV types were HPV 16 (64%), HPV 6 (39%), HPV 18 (31%), HPV 53 (14.7%), HPV 33 (10.6%), HPV 11 (8.2%), HPV 70 (5.7%), and HPV 61 (4.9%). The HPV types which were most frequently found in combination were HPV 6 + 16 (9.8%), 6 + 16 + 18 (8.2%), 16 + 18 (6.6%), 6 + 18 (4.9%), 16 + 33 (3.3%), 16 + 53 (3.3%). Median HPV16 and 18 viral loads were 6.1 log10 copies/10(6) cells [IQR 5.0-7.3] and 6.1 log10 copies/10(6) cells [IQR 5.7-6.0], respectively. Male gender (P = 0.03, OR: 1.2 [1.0-1.4]) and homo/bisexual transmission routes (P = 0.044, OR: 1.4 [1.0-1.9]) were associated with HPV 16 infection. An HPV 16 viral load cut-off ≥5.3 log10 copies/10(6) cells and a CD4+ cell count ≤200/µl were independent factors associated with abnormal cytology. In the absence of national consensus guidelines, a strict regular follow-up at shorter intervals is recommended for HIV-infected patients with abnormal cytology, especially low grade squamous intraepithelial lesions, an HPV 16 viral load ≥5.3 log/10(6) cells and a CD4+ cell count ≤200/µl.


Assuntos
Neoplasias do Ânus/patologia , Carcinoma in Situ/patologia , Papillomaviridae/isolamento & purificação , Infecções por Papillomavirus/complicações , Carga Viral , Adolescente , Adulto , Neoplasias do Ânus/virologia , Carcinoma in Situ/virologia , Estudos Transversais , Técnicas Citológicas , Feminino , Genótipo , Humanos , Masculino , Pessoa de Meia-Idade , Papillomaviridae/classificação , Papillomaviridae/genética , Infecções por Papillomavirus/virologia , Adulto Jovem
14.
J Clin Virol ; 57(4): 351-5, 2013 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-23664725

RESUMO

BACKGROUND: The persistence of HIV residual replication in patients with an undetectable plasma viral load (pVL) may limit immune recovery and facilitate inflammation-induced comorbidities. OBJECTIVE: The objective was to evaluate any correlation between immune restoration and intracellular [IC] HIV-DNA in cART-treated patients with a sustained undetectable pVL. STUDY DESIGN: This retrospective cross sectional study included 62 patients with a median duration of undetectable pVL of 10.3 years. IC HIV DNA in peripheral mononuclear blood cells (PBMCs) and T cell subsets were measured at the last visit. pVL, CD4(+) and CD8(+) T cell counts were retrospectively collected from the onset of long-term inhibition by antiretroviral treatment. The patients were separated into two groups: 27 non-blippers (sustained pVL< threshold value during all the visits) and 35 blippers ( ≥ 1 episodes of pVL> threshold but < 1000 copies/ml). The median pVL in blippers was 115 copies/ml. RESULTS: The median IC HIV DNA rate was 34 copies/10(6) PBMCs (71% ≥ 20 copies/10(6) PBMCs) with no significant difference between the groups. The proportion of CD8(+)CD38(+) and CD8(+)DR(+) T cells was higher in blipper patients, but the difference was only significant for the CD8(+)DR(+) marker (p = 0.036). No correlation was found between markers of immune activation on CD4(+) and CD8(+) T cells and the IC HIV-DNA level. CONCLUSION: No relation was found between the size of HIV reservoirs and immune activation in patients with sustained undetectable pVL. Mechanisms of immune activation have to be better understood in order to define specific therapeutic interventions.


Assuntos
DNA Viral/imunologia , Infecções por HIV/imunologia , HIV/genética , HIV/imunologia , Adulto , Fármacos Anti-HIV/imunologia , Fármacos Anti-HIV/uso terapêutico , Terapia Antirretroviral de Alta Atividade/métodos , Linfócitos T CD4-Positivos/efeitos dos fármacos , Linfócitos T CD4-Positivos/imunologia , Linfócitos T CD4-Positivos/virologia , Linfócitos T CD8-Positivos/efeitos dos fármacos , Linfócitos T CD8-Positivos/imunologia , Linfócitos T CD8-Positivos/virologia , Estudos Transversais , DNA Viral/genética , Feminino , Infecções por HIV/sangue , Infecções por HIV/tratamento farmacológico , Infecções por HIV/virologia , Humanos , Leucócitos Mononucleares/imunologia , Leucócitos Mononucleares/virologia , Ativação Linfocitária/imunologia , Masculino , Pessoa de Meia-Idade , RNA Viral/sangue , RNA Viral/imunologia , Estudos Retrospectivos , Subpopulações de Linfócitos T/efeitos dos fármacos , Subpopulações de Linfócitos T/imunologia , Subpopulações de Linfócitos T/virologia , Carga Viral/imunologia
15.
J Med Virol ; 84(6): 964-72, 2012 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-22499020

RESUMO

Management of patients infected with high-risk HPV (hrHPV) despite normal colposcopy following abnormal cytology remains a clinical challenge. The aim of this study was to evaluate if, in that specific population, initial HPV 16 and HPV 18 viral loads are predictive of infection clearance over a 24-month follow-up. A total of 67 women infected with hrHPV having normal colposcopy following equivocal or low-grade cytological abnormalities were recruited and attended regular follow-ups based on repeat colposcopies and HPV testing. HPV16 and HPV18 infection were diagnosed in 36 (53.7%) and 7 (10.4%) cases, respectively. Viral load was quantified using the quantitative duplex real-time PCR method. Although this was not observed for HPV 18, initial HPV 16 viral load was highly associated to HPV 16 infection outcome (receiver operating characteristic curve analysis, area under curve: 0.90). Thus, women who had cleared their HPV 16 infection had significantly lower median initial HPV 16 viral load than those with persistent HPV 16 infection: 1.5 × 10(3) copies per million cells (CPMC) versus 3.8 × 10(6) CPMC, respectively (P = 0.006). The best prediction of HPV 16 clearance was obtained with an initial HPV 16 viral load of <7.5 × 10(4) CPMC: 86.7% specificity and 85.7% sensitivity. Finally, six patients were diagnosed with grade 2 or 3 cervical or vaginal intraepithelial neoplasia. Although all had a persistent hrHPV infection, neither HPV 16 nor 18 viral loads were found to be predictive of the risk of cervical or vaginal intraepithelial neoplasia. HPV16 viral load quantitation could represent a clinically useful marker in that very specific population.


Assuntos
Papillomavirus Humano 16/isolamento & purificação , Papillomavirus Humano 18/isolamento & purificação , Infecções por Papillomavirus/patologia , Infecções por Papillomavirus/virologia , Displasia do Colo do Útero/epidemiologia , Carga Viral , Adulto , Idoso , Colposcopia , Feminino , Seguimentos , Humanos , Pessoa de Meia-Idade , Infecções por Papillomavirus/complicações , Prognóstico , Medição de Risco , Sensibilidade e Especificidade , Resultado do Tratamento , Adulto Jovem , Displasia do Colo do Útero/patologia
16.
J Med Virol ; 84(2): 306-13, 2012 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-22170552

RESUMO

The clinical utility of HPV 16 and 18 viral loads remains debated. The aim of this study was to assess the clinical significance of HPV 16 and 18 viral load and to determine a cut-off for optimal prediction of grade 2 or higher cervical intraepithelial neoplasia among patients referred to colposcopy. A total of 186 cervico-vaginal specimens harboring HPV 16 and/or 18 obtained at the time of colposcopy from patients without previous cervical neoplasia were tested for HPV 16 and 18 detection and quantitation using quantitative duplex real-time PCR method. Grade 2 or higher cervical intraepithelial neoplasia was diagnosed in 87 (46.8%) cases. Only HPV 16 median viral load increased significantly with the lesion grade: 9.1 × 10(4) in normal cervix or grade 1 cervical intraepithelial lesion versus 4.0 × 10(6) copies per million cells in grade 2 or higher cervical intraepithelial lesion (P < 0.001). The highest predictive value for grade 2 or higher cervical intraepithelial lesion was observed with a HPV 16 viral load cut-off of 3.0 × 10(6) copies per million cells (91% specificity, 58.2% sensitivity). Using this cut-off, the highest predictive value of HPV 16 viral load was observed among those referred for previous low-grade abnormal cervical cytology (96.4% specificity, 88% sensitivity). HPV 18 quantitation showed very poor predictive value. Specific attention should be given when performing colposcopic examination of women with an HPV 16 viral load higher than 3.0 × 10(6) copies per million cells, especially among those referred after a low-grade abnormal cytology.


Assuntos
Colposcopia , Papillomavirus Humano 16/isolamento & purificação , Papillomavirus Humano 18/isolamento & purificação , Carga Viral , Adolescente , Adulto , Idoso , DNA Viral/análise , Feminino , Humanos , Pessoa de Meia-Idade , Infecções por Papillomavirus/diagnóstico , Infecções por Papillomavirus/virologia , Neoplasias do Colo do Útero/diagnóstico , Neoplasias do Colo do Útero/virologia , Esfregaço Vaginal , Adulto Jovem , Displasia do Colo do Útero/diagnóstico , Displasia do Colo do Útero/patologia , Displasia do Colo do Útero/virologia
17.
Bull Cancer ; 98(7): 723-31, 2011 Jul.
Artigo em Francês | MEDLINE | ID: mdl-21700548

RESUMO

The non-participation to cervical screening is the major determinant in the risk of mortality due to cervical cancer. In France, around 40% of women do not participate to regular screening. The cultural or economic barriers for performing screening by Pap test are numerous; one of the most frequent is the refusal of gynaecological examination. A persistent HPV(HR) infection is a necessary factor for developing cervical cancer. The HPV(HR) testing has a high sensibility to detect high grade cervical intra-epithelial neoplasia (CIN 2-3) and a satisfactory specificity after 30-35 years old. The principal objective of this study was to compare the participation rates in women 35-69 years old who did not perform a Pap test after a first individual invitation, either when an HPV(HR) auto-test was offered to be performed at home or a second invitation to Pap test was sent. We also evaluated the quality of the two tests, the positive results obtained by age groups and the following histological type of lesions diagnosed in the women with positive results. The study included 9,334 women, 35-69 years old, who did not realized a Pap-test during the 2 previous years and who did not respond at a first individual invitation. These non-responders were randomized into two groups: one group (n=4,934) received a second individual invitation and the other (n=4,400) an offer of receiving and performing an HPV auto-test at home. In women 35-69 years the participation to the second invitation to Pap test was significantly lower (7.2%) than the participation to auto-test (26.4%) with P<0.001. The quality of the two tests was satisfactory; the auto-test was not altered by the postage to laboratory (non interpretable rate=1.4% [CI at 95%=0.65%; 2.15%]. From the 311 Pap tests done, 5.5% (17) were classified "abnormal" (nine ASCUS, one high grade and seven low grades). The follow up of 13 women out of 17 confirmed the diagnosis for 1 case of CIN2 and 2 cases of CIN3, 4 women are lost of follow up after 6 months. From the 939 HPV(HR) tests done, 6.2% (58) were positive. Such positivity rate was not influenced by age. Out of the 58 positive HPV(HR) cases, 27 only were of the 16 genotype (46.5% [CI 95%=33.7%; 59.3%]). This law rate is a consequence of an inversion of the ratio HPV 16 versus other types in women 60 years old and over. In this group, the follow-up of 36 women diagnosed five cases of CIN1, one of CIN2 and four of CIN3; 22 patients are lost of follow up at 6 months. Globally, in the studied population, an individual recall for pap test allowed to diagnose and treat 3 high grade lesions (7‰) and the dispatching of an auto test allowed the diagnosis and treatment of five high grade lesions (1,4‰), this difference is significant (P=0.02; OR=0.25 [0.05; 0.97]). The HPV(HR) auto-test seems to be better accepted than the Pap test in the 35-69 years old women previously non-responders to individual invitation, and the quality of the test is satisfactory. Such a test can be proposed to the 35-69 years old non-participant to Pap test to increase the coverage for cervical screening, if the rates of diagnostic examinations performed in case of an HPV(HR) positive is sufficiently high.


Assuntos
Infecções por Papillomavirus/diagnóstico , Recusa de Participação/estatística & dados numéricos , Displasia do Colo do Útero/diagnóstico , Neoplasias do Colo do Útero/diagnóstico , Esfregaço Vaginal/estatística & dados numéricos , Adulto , Idoso , Autoavaliação Diagnóstica , Feminino , França , Humanos , Pessoa de Meia-Idade , Projetos Piloto , Neoplasias do Colo do Útero/virologia , Displasia do Colo do Útero/virologia
18.
J Med Virol ; 83(4): 637-43, 2011 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-21328378

RESUMO

The persistence of high-risk HPV (HR-HPV) infection is necessary for the development of cervical intraepithelial neoplasia. The aim of this study was to evaluate if HR-HPV typing and HPV16, 18, 31, and 33 quantitation are predictive for type-specific infection persistence and/or the development of CIN in women under 30 with normal cervical cytology. Young women (under 30) attending a family planning clinic who were HPV positive with normal cervical cytology were included. HPV genotyping was assessed by MY09/MY11 PCR, sequencing, phylogenetic analysis, and cloning when necessary. HR-HPV viral load was quantified using duplex real-time PCR. Study patients were offered for a second smear and HR-HPV detection and quantitation after 12 months. HR-HPV was identified in 43 (21.9%) of the 199 included women. Of these, 39 patients had a second cervical sample taken within a mean interval of 11.7 months (8.8-18.3 months). The mean HR-HPV 16, 18, 31, and 33 initial viral load was 1.9 × 10(6) copies/million cells. The level of viral load did not reveal any significant association with type-specific HR-HPV persistence or the subsequent development of cervical intraepithelial neoplasia. Only HPV16 infection was significantly more likely to persist (91.7% vs. 33.1%, P=0.001) and to develop CIN (33.3% vs. 3.7%, P=0.025). In women under 30 with normal cytology, HR-HPV viral load is common and is not predictive of HPV persistence or the development of cervical intraepithelial neoplasia. HPV16 positive women are significantly more likely to have persistent infection and to develop cervical intraepithelial neoplasia.


Assuntos
Colo do Útero/fisiologia , Colo do Útero/virologia , Papillomaviridae/classificação , Papillomaviridae/isolamento & purificação , Infecções por Papillomavirus/epidemiologia , Infecções por Papillomavirus/virologia , Carga Viral , Adolescente , Adulto , Análise por Conglomerados , DNA Viral/química , DNA Viral/genética , DNA Viral/isolamento & purificação , Feminino , Genótipo , Humanos , Papillomaviridae/genética , Filogenia , Reação em Cadeia da Polimerase , Polimorfismo Genético , Prevalência , Análise de Sequência de DNA , Adulto Jovem
19.
J Med Virol ; 82(8): 1431-7, 2010 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-20572091

RESUMO

Self-sampling using vaginal swabs could be a valuable alternative to screen for cervical cancer for women who do not attend regular cytological screening. The aim of this study was to determine the prevalence of high and low-risk HPV types and of HPV type 16 and 18 DNA load in self-collected vaginal swabs from 35- to 69-year-old Southern French women of low socioeconomic level or migrant populations who do not attend regular cervical screening. A good concordance (93.1%) was found between cervical brush and vaginal swabs in 29 samples. Self-collected vaginal swabs were examined from 120 women. HPV infection was found in 28 women (23.3%; median age 48 years), 17 (14.1%) of whom harbored high-risk HPV types. HPV type 16 was the high risk type found most frequently, followed by types 53, 31, 18, 58, and 66. The low-risk type detected most frequently was HPV type 6, followed by types 61, 70, and 81. The mean HPV 16 and 18 load was 6.3 log(10) copies/10(6) cells and 2.4 log(10) copies/10(6) cells, respectively. These results suggest that vaginal self-swabs can be a reliable tool for cervical cancer screening in non-attending and inadequately screened elderly women.


Assuntos
Papillomavirus Humano 16/isolamento & purificação , Papillomavirus Humano 18/isolamento & purificação , Programas de Rastreamento/métodos , Infecções por Papillomavirus/diagnóstico , Infecções por Papillomavirus/epidemiologia , Autoadministração , Vagina/virologia , Adulto , Idoso , Feminino , França/epidemiologia , Humanos , Pessoa de Meia-Idade , Infecções por Papillomavirus/virologia , Prevalência , Carga Viral
20.
J Clin Virol ; 44(4): 314-7, 2009 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-19269245

RESUMO

BACKGROUND: Despite HAART, the prevalence and incidence of anal cancer in HIV-infected individuals have increased. Recently, the relationship between the severity of cervical lesions and oncogenic HPV load was demonstrated; however, few studies have assessed the level and the significance of oncogenic HPV load in patients at risk for anal neoplasia. OBJECTIVES: To assess HPV genotypes and HPV 16/18 DNA load in HIV-1 infected patients at risk for anal neoplasia. STUDY DESIGN: Cross-sectional pilot study from male and female HIV-1 infected individuals at risk for anal neoplasia in an outpatient HIV Clinical Unit of Marseilles university Hospitals. RESULTS: Anal HPV was found in 79% of the patients whereas high-risk (HR) HPV types and infection with multiple HPV types were found in 83% and 61% of the patients, respectively. Using a sensitive real-time PCR, median HPV 16 and 18 DNA load were 5 x 10(6) copies/10(6) cells and 3.2 x 10(5) copies/10(6) cells, respectively. Notably, there were no significant differences in the HPV 16/18 viral loads with respect to the anoscopic results. CONCLUSIONS: Longitudinal studies are needed to evaluate the link between high anal HPV DNA load and progression to anal squamous intraepithelial lesions and anal cancer.


Assuntos
Canal Anal/virologia , DNA Viral/isolamento & purificação , Infecções por HIV/complicações , Papillomavirus Humano 16/isolamento & purificação , Papillomavirus Humano 18/isolamento & purificação , Infecções por Papillomavirus/epidemiologia , Adulto , Estudos Transversais , Feminino , Infecções por HIV/virologia , HIV-1/isolamento & purificação , Papillomavirus Humano 16/genética , Papillomavirus Humano 18/genética , Humanos , Masculino , Pessoa de Meia-Idade , Infecções por Papillomavirus/virologia , Prevalência
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