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1.
J Infect Dis ; 229(Supplement_2): S213-S218, 2024 Mar 26.
Artigo em Inglês | MEDLINE | ID: mdl-38019187

RESUMO

The 2022 mpox outbreak primarily involved sexual transmission among men who have sex with men and disproportionately affected persons with human immunodeficiency virus (HIV). We examined viral dynamics and clinical features in a cohort evaluated for mpox infection at a comprehensive HIV clinic in Atlanta, Georgia. Viral DNA was found in 8 oropharyngeal and 5 anorectal specimens among 10 mpox cases confirmed by lesion swab polymerase chain reaction. Within-participant anatomic site of lowest cycle threshold (Ct) value varied, and lower Ct values were found in oropharyngeal and anorectal swabs when corresponding symptoms were present. This provides insight into mpox infection across multiple anatomic sites among people with HIV.


Assuntos
Infecções por HIV , Mpox , Minorias Sexuais e de Gênero , Masculino , Humanos , Homossexualidade Masculina , Instituições de Assistência Ambulatorial
2.
Adv Radiat Oncol ; 8(2): 101155, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36845623

RESUMO

Purpose: Anal cancer affects a disproportionate percentage of persons infected with human immunodeficiency virus (HIV). We analyzed a cohort of patients with HIV and anal cancer who received modern radiation therapy (RT) and concurrent chemotherapy to assess whether certain factors are associated with poor oncologic outcomes. Patients and Methods: We performed a retrospective chart review of 75 consecutive patients with HIV infection and anal cancer who received definitive chemotherapy and RT from 2008 to 2018 at a single academic institution. Local recurrence, overall survival, changes in CD4 counts, and toxicities were investigated. Results: Most patients were male (92%) with large representation from Black patients (77%). The median pretreatment CD4 count was 280 cells/mm3, which was persistently lower at 6 and 12 months' posttreatment, 87 cells/mm3 and 182 cells/mm3, respectively (P < .001). Most (92%) patients received intensity modulated RT; median dose was 54 Gy (Range, 46.8-59.4 Gy). At a median follow-up 5.4 years (Range, 4.37-6.21 years), 20 (27%) patients had disease recurrence and 10 (13%) had isolated local failures. Nine patients died due to progressive disease. In multivariable analysis, clinically node negative involvement was significantly associated with better overall survival (hazard ratio, 0.39; 95% confidence interval, 0.16-1.00, P = .049). Acute grade 2 and 3 skin toxicities were common, at 83% and 19%, respectively. Acute grade 2 and 3 gastrointestinal toxicities were 9% and 3%, respectively. Acute grade 3 hematologic toxicity was 20%, and one grade 5 toxicity was reported. Several late grade 3 toxicities persisted: gastrointestinal (24%), skin (17%), and hematologic (6%). Two late grade 5 toxicities were noted. Conclusions: Most patients with HIV and anal cancer did not experience local recurrence; however, acute and late toxicities were common. CD4 counts at 6 and 12 months' posttreatment remained lower than pretreatment CD4 counts. Further attention to treatment of the HIV-infected population is needed.

3.
Open Forum Infect Dis ; 10(2): ofad054, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-36820315

RESUMO

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) escape from combination monoclonal antibody treatment is rarely reported. We describe an immunocompromised individual with human immunodeficiency virus and persistent SARS-CoV-2 infection in whom substantial SARS-CoV-2 evolution occurred, including the emergence of 2 mutations associated with escape from the monoclonal antibody cocktail received.

4.
JCO Oncol Pract ; 16(6): 319-325, 2020 06.
Artigo em Inglês | MEDLINE | ID: mdl-32160138

RESUMO

Recent studies have identified durable responses with the use of immune checkpoint inhibitors in patients with mismatch repair-deficient (MMR-D)/microsatellite instability-high (MSI-H) metastatic colorectal cancer (CRC). The dramatic improvement in clinical outcomes led to the US Food and Drug Administration approval of pembrolizumab, nivolumab, and nivolumab in combination with ipilimumab in metastatic patients with MSI-H/MMR-D CRC who previously experienced progression on cytotoxic therapies. In the clinical trials investigating these agents, HIV-seropositive patients were not included and therefore the clinical efficacy of these agents in patients with metastatic MSI-H/MMR-D CRC living with HIV is unclear. On the basis of growing evidence, immune checkpoint blockade therapies seem to be a safe approach in patients with well-controlled HIV infection. Research on immunotherapeutic approaches in patients living with HIV and cancer is an area of unmet medical need that can be addressed by clinical trial designs that are inclusive of patients with well-controlled seropositive HIV and trials that specifically evaluate immune therapies in patients living with HIV.


Assuntos
Neoplasias Colorretais , Infecções por HIV , Neoplasias Colorretais/tratamento farmacológico , Infecções por HIV/tratamento farmacológico , Humanos , Inibidores de Checkpoint Imunológico , Ipilimumab/efeitos adversos , Instabilidade de Microssatélites , Estados Unidos
5.
Open Forum Infect Dis ; 4(4): ofx196, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-29766014

RESUMO

In 2010, a new entity, characterized by the classical signs and symptoms of Kaposi sarcoma herpesvirus-associated multicentric Castleman's disease (KSHV-MCD) in the absence of pathologic evidence of MCD, was described in individuals living with HIV. This syndrome was named KSHV inflammatory cytokine syndrome (KICS). It carries mortality rates of up to 60%. To date, there are no standard therapies. Treatment regimens studied in clinical trials for MCD disease are used in cases of KICS.

6.
AIDS Res Hum Retroviruses ; 33(6): 583-589, 2017 06.
Artigo em Inglês | MEDLINE | ID: mdl-28019110

RESUMO

The national incidence of epidemic Kaposi sarcoma (KS) has decreased dramatically since the availability of combined antiretroviral therapy. Despite national trends, we continue to see admissions for KS. Electronic medical records were queried to identify patients with HIV who were admitted with active KS between 2010 and 2013 and records were reviewed to determine patient characteristics and factors affecting survival. Data were collected from all hospital admissions until death or May 1, 2015. Kaplan-Meier survival analysis with log-rank tests were used to test for differences in survival and Cox proportional hazards models were used to assess the prognostic value of variables. Odds ratios were calculated to determine factors associated with death during hospital admissions. Forty-three patients were admitted 141 times, with 81 admissions specifically related to KS. The majority of patients were highly immunosuppressed when KS was diagnosed (median CD4 count: 11), and 68% had multiple organ involvement with KS. Comorbidities at diagnosis included hepatitis B (26%) and pneumocystis pneumonia (33%). Frequent reasons for admission included skin and soft tissue complaints (28.4%) and respiratory complaints (27.2%). The estimated median survival after KS diagnosis was 3.0 years. Lung involvement, liver involvement, poor performance status, and low CD4 T cell count (<50) were associated with lower survival. Lung infections were the only admission diagnoses significantly associated with an increased odds of death during admission (OR: 5.42, 95% CI: 1.04-28.24). KS in our population is associated with poor access to healthcare and management of HIV. Factors affecting survival, including CD4 count and pulmonary involvement of KS, are in accordance with previous studies. Pulmonary KS should therefore be considered early in AIDS patients presenting with respiratory complaints. Our study also demonstrated that respiratory infections are associated with significant morbidity in patients with KS.


Assuntos
Infecções por HIV/complicações , Sarcoma de Kaposi/epidemiologia , Sarcoma de Kaposi/patologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Comorbidade , Feminino , Hospitais Públicos , Humanos , Masculino , Pessoa de Meia-Idade , Fatores de Risco , Sarcoma de Kaposi/mortalidade , Análise de Sobrevida , População Urbana , Adulto Jovem
8.
AIDS Res Hum Retroviruses ; 30(7): 665-9, 2014 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-24707838

RESUMO

People living with HIV/AIDS (PLWHA) are at a higher risk of developing non-Hodgkin lymphoma (NHL). The influence of combined antiretrovirals (cART) on the presentation, treatment, and outcomes of HIV-associated NHL (HIV-NHL) warrants further investigation. We performed a retrospective analysis of PLWHA diagnosed with NHL who received care at the Infectious Diseases Ponce de Leon Center in Atlanta, Georgia, from January 1, 2004 to December 31, 2010. Thirty-five patients with HIV-NHL were identified. Among these patients, 7 had Burkitt lymphoma (BL), 20 had diffuse large B cell lymphoma (DLBCL), 7 had plasmablastic lymphoma (PL), and 1 had primary effusion lymphoma (PEL). The majority of patients (82.9%) presented with advanced disease, and 63% were not on ART at diagnosis. Despite having good performance status at presentation, the majority of patients presented with high International Prognostic Index (IPI) scores. There were differences between the histologic subtypes of NHL in regard to treatment, complications, and outcomes. The median CD4 lymphocyte count at diagnosis was 110 cells/mm(3) for patients with DLBCL [interquartile range (IQR): 66, 203], 165 cells/mm(3) for Burkitt lymphoma (IQR: 36, 199), and 98 cells/mm(3) for plasmablastic lymphoma (IQR: 34, 214). Overall, patients completed 67% of planned chemotherapy cycles. Common causes for chemotherapy termination were persistent myelosuppression (18.2%), social factors (22.7%), and disease progression (36.4%). Social factors included lack of transportation, substance abuse, unstable housing, and poor adherence. Two-year overall survival was 40% for all HIV-NHL. Half of the patients with DLBCL (n=10), 42% of patients with PL (n=3), and only 14.3% of patients with BL (n=1) were alive at 2 years. Among the overall survivors at 2 years, 85.7% had CD4 >200 cells/mm(3) and 78.6% had undetectable HIV viral loads (VL) at that time.


Assuntos
Síndrome da Imunodeficiência Adquirida/epidemiologia , Linfoma de Burkitt/epidemiologia , Linfoma Relacionado a AIDS/epidemiologia , Linfoma Difuso de Grandes Células B/epidemiologia , Linfoma de Efusão Primária/epidemiologia , Síndrome da Imunodeficiência Adquirida/tratamento farmacológico , Adulto , Antirretrovirais/uso terapêutico , Anticorpos Monoclonais Murinos/uso terapêutico , Antineoplásicos/uso terapêutico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Linfoma de Burkitt/tratamento farmacológico , Contagem de Linfócito CD4 , Ciclofosfamida/uso terapêutico , Progressão da Doença , Doxorrubicina/uso terapêutico , Feminino , Hepatite B/complicações , Hepatite B/virologia , Humanos , Linfoma Relacionado a AIDS/tratamento farmacológico , Linfoma Difuso de Grandes Células B/tratamento farmacológico , Linfoma de Efusão Primária/tratamento farmacológico , Masculino , Pessoa de Meia-Idade , Prednisona/uso terapêutico , Estudos Retrospectivos , Rituximab , Vincristina/uso terapêutico , Carga Viral
9.
Am J Clin Pathol ; 141(1): 119-27, 2014 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-24343745

RESUMO

OBJECTIVES: To explore the diagnosis of hematolymphoid malignancies of the liver (hepatic lymphoma [HeL]) by image-guided fine-needle aspiration (FNA), which can often be difficult due to a low index of suspicion and nonspecific patient presentations, especially in the rare cases where the liver is the only site of disease (primary HeL [PHeL]). Understanding the clinical setting in which such lesions arise, as well as the cytomorphologic findings, may assist cytopathologists in making an accurate diagnosis and triaging samples for ancillary studies. METHODS: In this retrospective study of 32 patients with HeL, the largest such study to our knowledge, we review the clinical and diagnostic features of HeL. RESULTS: HeL and especially PHeL most commonly show a diffuse large B-cell lymphoma phenotype and have a poor prognosis (median survival of seven months). PHeL is strongly associated with human immunodeficiency virus infection (12/16 patients). CONCLUSIONS: Image-guided FNA with immediate evaluation is a reliable means to obtain diagnostic material and triage for ancillary tests.


Assuntos
Neoplasias Hepáticas/diagnóstico , Linfoma Difuso de Grandes Células B/diagnóstico , Adulto , Idoso , Idoso de 80 Anos ou mais , Biópsia por Agulha Fina , Feminino , Georgia/epidemiologia , Infecções por HIV/complicações , Humanos , Biópsia Guiada por Imagem , Neoplasias Hepáticas/mortalidade , Neoplasias Hepáticas/patologia , Linfoma Difuso de Grandes Células B/mortalidade , Linfoma Difuso de Grandes Células B/patologia , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos
10.
Transfusion ; 53(10): 2164-7, 2013 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-23362994

RESUMO

BACKGROUND: Human herpesvirus 8 (HHV-8) is likely transmitted through blood transfusion in high-prevalence areas. The efficacy of leukoreduction filtration for reducing HHV-8 in blood has not been reported. STUDY DESIGN AND METHODS: Blood was drawn from 45 human immunodeficiency virus-positive men either with Kaposi's sarcoma (KS; n=21) or without KS (n=24) and subject to leukoreduction filtration. HHV-8 viral load was measured in plasma and in blood before and after filtration. RESULTS: Twelve subjects, all with KS, had detectable HHV-8 viremia before filtration with viral loads of 10(2) to 10(5) copies/mL (mean, 3 × 10(4) copies/mL). After filtration, seven of 12 subjects no longer had detectable HHV-8 in their blood, and five of 12 subjects had detectable HHV-8 that was 90% reduced on average from prefiltration levels. The presence of HHV-8 in the blood after filtration was strongly associated with prefiltration viral loads greater than 1000 copies/mL and the presence of cell-free virus in plasma. None of the subjects without KS had detectable levels of HHV-8 virus in blood before or after filtration. CONCLUSION: Cell-associated HHV-8 appeared to be effectively removed by leukoreduction filtration. Cell-free HHV-8 was present in 42% of subjects as 1% to 20% of the total virus which was not removed by filtration.


Assuntos
DNA Viral/sangue , Herpesvirus Humano 8/isolamento & purificação , Procedimentos de Redução de Leucócitos , Carga Viral , Humanos , Masculino , Viremia/virologia
11.
J Oral Pathol Med ; 41(4): 288-91, 2012 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-22082117

RESUMO

BACKGROUND: Oral human papillomavirus (HPV) is associated with several health complications especially in combination with HIV infections. Screening may be useful, but methodologies and results have varied widely in previous studies. We conducted a pilot study in an HIV-positive population to evaluate HPV detection in four different oral sample types. METHODS: Upon enrollment, an oral-rinse (OR) sample was collected in 10 ml saline. Additional samples of the buccal mucosa, tonsils, and oral lesion if present were collected with cytology brushes. DNA was extracted using LC-MagNAPure, and the Linear Array HPV genotyping Assay (Roche) was used for HPV genotyping. RESULTS: In samples from 100 HIV-positive participants, HPV was detected in 39 (%) of the oral rinses, 13 (%) mucosal and 11 (12.9%) tonsil brushings. Of seven lesion brushings collected, four were HPV positive. All participants with HPV detected in mucosal, tonsil, or lesion brushings were also positive in the OR sample. Among the rinse samples, 27 different genotypes were detected with HPV84 (n = 6), HPV55 (n = 5), and HPV83 (n = 5) being the most common. Multiple infections were detected in 17 samples (range 2-9, mean 1.9 types). As potential cofactors, only receptive oral sex was significantly associated with HPV (P = 0.018, odds ratio 2.9, 95% CI 1.2-6.9). CONCLUSION: Sampling is a significant factor for oral prevalence studies. Oral rinse provides the best representation for HPV in the oral cavity. To evaluate associated cofactors other than receptive oral sex, larger studies with case-control design are necessary.


Assuntos
Alphapapillomavirus/classificação , Infecções por HIV/virologia , Mucosa Bucal/virologia , Adulto , Idoso , Alphapapillomavirus/genética , Terapia Antirretroviral de Alta Atividade , Contagem de Linfócito CD4 , Condiloma Acuminado/virologia , Citodiagnóstico/instrumentação , DNA Viral/análise , Feminino , Genótipo , Gengiva/virologia , HIV/isolamento & purificação , Soropositividade para HIV/virologia , Humanos , Masculino , Pessoa de Meia-Idade , Doenças da Boca/virologia , Úlceras Orais/virologia , Tonsila Palatina/virologia , Papiloma/virologia , Infecções por Papillomavirus/diagnóstico , Projetos Piloto , Carga Viral
12.
Cancer ; 118(1): 164-72, 2012 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-21713759

RESUMO

BACKGROUND: Lung cancer is the leading cause of death among non-acquired immunodeficiency syndrome (AIDS)-defining malignancies. Because highly active antiretroviral therapy (HAART) has improved the survival of patients with human immunodeficiency virus (HIV), the authors evaluated lung cancer outcomes in the HAART era. METHODS: HIV-positive patients who were diagnosed with lung cancer at the authors' institution during the HAART era (1995-2008) were analyzed. Patient charts were reviewed for clinical and laboratory data. The CD4 count at diagnosis was treated as a continuous variable and subcategorized into distinct variables with 3 cutoff points (50 cells/mL, 200 cells/mL, and 500 cells/mL). Pearson correlation coefficients were estimated for each covariate studied. Survival was determined by using the Kaplan-Meier method. RESULTS: Of 80 patients, 73 had nonsmall cell lung cancer. Baseline characteristics were as follows: median patient age, 52 years; male, 80%; African Americans, 84%; injection drug users, 25%; smokers, 100%; and previous exposure to antiretroviral agents, 55%. At the time of cancer diagnosis, the mean CD4 count was 304 cells/mL, and the mean viral load was 82,420 copies/mL. The latency between HIV diagnosis and lung cancer diagnosis was significantly shorter among women (4.1 years vs 7.7 years; P = .02), and 71% of patients received anticancer therapy. The 1-year and 3-year survival rates for stage IIIB/IV were 25% and 0%, respectively. Grade 3/4 toxicities occurred in 60% of patients who received chemoradiation versus 36% of patients who received chemotherapy. Cancer-related survival was better for patients with CD4 counts >200 cells/mL (P = .0298) and >500 cells/mL (P = .0076). CONCLUSIONS: The latency from diagnosis of HIV to lung cancer was significantly shorter for women. Although outcomes for patients with lung cancer who have HIV remain poor, a high CD4 count was associated with improved lung cancer-related survival.


Assuntos
Síndrome da Imunodeficiência Adquirida/complicações , Terapia Antirretroviral de Alta Atividade , Infecções por HIV/complicações , Neoplasias Pulmonares/complicações , Síndrome da Imunodeficiência Adquirida/tratamento farmacológico , Adulto , Idoso , Estudos de Coortes , Feminino , Humanos , Neoplasias Pulmonares/mortalidade , Neoplasias Pulmonares/terapia , Masculino , Pessoa de Meia-Idade
13.
Curr Infect Dis Rep ; 12(1): 46-55, 2010 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-21308498

RESUMO

The introduction of highly active antiretroviral therapy (HAART) has drastically changed the scope and spectrum of diseases associated with HIV, shifting from AIDS-related to non-AIDS-related diseases. Studies linking HIV/AIDS databases to cancer registries have shown a dramatic decrease in AIDS-related malignancies and a steady increase in non-AIDS-defining malignancies (NADM). We review the causes underlying the rise in incidence of NADM and the clinical presentation, pathology, and treatment outcomes of the four most commonly encountered NADM in the HAART era. Meta-analysis of published studies show an increase in NADM over the general population, mostly among infection-related cancers such as anal cancer, Hodgkin lymphoma, and liver cancer. Among the non-infection-related cancers, lung and skin cancers predominate. The overall effect of HAART on NADM is unsettled. As HIV-infected individuals survive longer, better screening strategies are needed to detect cancer earlier, and prospective data are needed to assess the impact of HAART on cancer outcomes.

14.
AIDS ; 21(12): 1541-5, 2007 Jul 31.
Artigo em Inglês | MEDLINE | ID: mdl-17630548

RESUMO

OBJECTIVE: We present the largest longitudinal study to date that examines the association between Kaposi's Sarcoma (KS) disease progression and the presence and viral load of human herpesvirus 8 (HHV-8). METHODS: Ninety-six men were enrolled at HIV clinics in Atlanta, Georgia, who had KS (n = 47) or were without KS but seropositive for HHV-8. Visits occurred at 6-month intervals for 2 years at which the patient's KS status was evaluated and oral fluid and blood were collected for quantification of HHV-8 DNA and antibodies. RESULTS: The presence of HHV-8 DNA in blood was more common (P < 0.001) and the viral load higher (P < 0.001) in men with KS in comparison with men without KS. Mean HHV-8 viral loads in blood and oral fluids were associated with disease status, being highest among patients with progressing KS, intermediate among patients with stable KS, and lowest among patients with regressing KS. Consistent with our previous report high antibody titers to HHV-8 orf 65 were inversely associated with HHV-8 shedding in oral fluid. CONCLUSIONS: We observed a significant association between changes in KS disease severity and the presence and viral load of HHV-8. HHV-8 viral load in blood may provide useful information to clinicians for assessment of the risk of further disease progression in patients with KS.


Assuntos
Síndrome da Imunodeficiência Adquirida/complicações , Herpesvirus Humano 8/isolamento & purificação , Sarcoma de Kaposi/virologia , Carga Viral , Anticorpos Antivirais/sangue , Progressão da Doença , Seguimentos , Herpesvirus Humano 8/imunologia , Humanos , Leucócitos Mononucleares/virologia , Masculino , Saliva/virologia , Índice de Gravidade de Doença , Eliminação de Partículas Virais
15.
Int J Gastrointest Cancer ; 36(1): 1-14, 2005.
Artigo em Inglês | MEDLINE | ID: mdl-16227631

RESUMO

The gastrointestinal tract is one of the most common sites for the development of primary neoplasms arising in patients with pre-existing infection with the human immunodeficiency virus (HIV). Over the past decade, new information on the clinical manifestation, natural history, treatment options, and related toxicity have been reported, mostly notably the integration of highly active antiretroviral therapy (HAART). The following is a concise review summarizing the current state-of-the-art for GI tract malignancies in the HIV-positive patient and is designed to assist the clinical oncology team in developing a rationale plan when caring for these patients.


Assuntos
Neoplasias do Ânus/etiologia , Neoplasias Gastrointestinais/etiologia , Infecções por HIV/complicações , Linfoma/etiologia , Sarcoma de Kaposi/etiologia , Terapia Antirretroviral de Alta Atividade , Neoplasias do Ânus/fisiopatologia , Neoplasias do Ânus/terapia , Neoplasias Gastrointestinais/fisiopatologia , Neoplasias Gastrointestinais/terapia , Infecções por HIV/tratamento farmacológico , Humanos , Linfoma/fisiopatologia , Linfoma/terapia , Prognóstico , Fatores de Risco , Sarcoma de Kaposi/fisiopatologia , Sarcoma de Kaposi/terapia
16.
Oncology (Williston Park) ; 19(12): 1634-8; discussion 1638-40, 1645 passim, 2005 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-16396154

RESUMO

Squamous cell anal cancer remains an uncommon entity; however, the incidence appears to be increasing in at-risk populations, especially those infected with human papillomavirus (HPV) and human immunodeficiency virus (HIV). Given the ability to cure this cancer using synchronous chemoradiotherapy, management practices of this disease are critical. This article considers treatment strategies for HIV-positive patients with anal cancer, including the impact on chemoradiation-induced toxicities and the role of highly active antiretroviral therapy in the treatment of this patient population. The standard treatment has been fluorouracil (5-FU) and mitomycin (or cisplatin) as chemotherapy agents plus radiation. Consideration to modifying the standard treatment regime is based on the fact that patients with HIV tend to experience greater toxicity, especially when CD4 counts are below 200; these patients also require longer treatment breaks. Additional changes to the chemotherapy dosing, such as giving 5-FU continuously and decreasing mitomycin dose, are evaluated and considered in relation to radiation field sizes in an effort to reduce toxicity, maintain local tumor control, and limit need for colostomy. The opportunity for decreasing the radiation field size and using intensity-modulated radiation therapy (IMRT) is also considered, particularly in light of the fact that IMRT provides dose-sparing while maximizing target volume dose to involved areas. The impact of the immune system in patients with HIV and squamous cell carcinoma of the anus and the associated response to therapy remains unknown. Continued studies and phase III trials will be needed to test new treatment strategies in HIV-infected patients with squamous cell cancer of the anus to determine which treatment protocols provide the greatest benefits.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias do Ânus/epidemiologia , Neoplasias do Ânus/terapia , Carcinoma de Células Escamosas/epidemiologia , Carcinoma de Células Escamosas/terapia , Infecções por HIV/epidemiologia , Adulto , Terapia Antirretroviral de Alta Atividade/métodos , Neoplasias do Ânus/patologia , Carcinoma de Células Escamosas/patologia , Terapia Combinada/métodos , Comorbidade , Feminino , Infecções por HIV/diagnóstico , Infecções por HIV/tratamento farmacológico , Humanos , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Prognóstico , Radioterapia Adjuvante , Ensaios Clínicos Controlados Aleatórios como Assunto , Medição de Risco , Análise de Sobrevida , Resultado do Tratamento
17.
AIDS ; 18(13): 1819-26, 2004 Sep 03.
Artigo em Inglês | MEDLINE | ID: mdl-15316343

RESUMO

OBJECTIVE: To study the natural history and pathogenesis of human herpesvirus 8 (HHV-8) infection in HHV-8-seropositive, immunosuppressed men. DESIGN: Longitudinal study of 87 HHV-8- and HIV-seropositive men [42 with Kaposi's sarcoma (KS)] during four visits over a 2 month period. METHODS: : Patients provided oral fluid and blood. HHV-8 antibody titers were measured with peptide-based enzyme-linked immunosorbent assays (ELISA) for ORF65 and K8.1; HHV-8 DNA was detected with polymerase chain reaction ELISA. RESULTS: HHV-8 DNA was present in oral fluid or peripheral blood mononuclear cells (PBMC) at one or more of the four visits in 71% of men with KS and 56% of men without KS. The strongest correlate of HHV-8 DNA in PBMC was the presence of KS [odds ratio (OR), 8.7; 95% confidence interval (CI), 3.4-22]. Detection of HHV-8 DNA in oral fluid or PBMC was often intermittent, but individuals who shed virus at one time point were more likely to shed at other times. Some men had incomplete epitope recognition in their anti-HHV-8 antibody response. High antibody titers were associated with the absence of circulating HHV-8, particularly for the ORF65 seroassay (OR, 0.16; 95% CI, 0.05-0.51). CONCLUSIONS: Among HHV-8 seropositive men, circulating virus is common even in the absence of disease. The link between KS and HHV-8 DNA in PBMC suggests that anti-herpes drugs may impede KS development or progression. Seroassays should target multiple epitopes to achieve maximal sensitivity. HHV-8 replication may be limited by high antibody titers or other immune function for which antibodies are a marker.


Assuntos
Anticorpos Antivirais/isolamento & purificação , DNA Viral/isolamento & purificação , Soropositividade para HIV/imunologia , Herpesvirus Humano 8/isolamento & purificação , Tolerância Imunológica/imunologia , Sarcoma de Kaposi/etiologia , Adulto , Líquidos Corporais/virologia , Ensaio de Imunoadsorção Enzimática , Soropositividade para HIV/sangue , Herpesvirus Humano 8/genética , Homossexualidade Masculina , Humanos , Estudos Longitudinais , Masculino , Sarcoma de Kaposi/sangue , Sarcoma de Kaposi/imunologia
18.
AIDS ; 17(2): 215-22, 2003 Jan 24.
Artigo em Inglês | MEDLINE | ID: mdl-12545082

RESUMO

OBJECTIVE: To identify risk factors for Kaposi's sarcoma (KS) among men seropositive for both human herpesvirus 8 (HHV-8) and HIV. DESIGN: Cross-sectional study of 91 HHV-8 seropositive, HIV seropositive men who have sex with men (57 with KS), and 70 controls at lower risk for KS. METHODS: Patients received clinical evaluations. Blood, oral fluids, semen, rectal brush, rectal swab, and urine were collected, and tests for HHV-8 were performed. RESULTS: Men with KS were more likely to have HHV-8 DNA in peripheral blood mononuclear cells (PBMC) than men without KS [35.1 versus 5.9%, odds ratio (OR), 8.6, 95% confidence interval (CI), 1.9-39.9]. The prevalence of HHV-8 DNA in oral fluids was similar for the two groups (37.0 versus 32.4%; OR, 1.2; 95% CI, 0.5-3.0). HHV-8 DNA was rarely detected in specimens of other types from these men, or in any specimens from the 70 controls. Among men with KS, HHV-8 DNA in PBMC was associated with new KS lesions (OR, 4.5; 95% CI, 1.4-14.5), and HHV-8 DNA in oral fluids was associated with oropharyngeal KS lesions (OR, 3.1; 95% CI, 1.0-10.1). Men with high HHV-8 antibody titers were more likely to have KS (OR, 9.6; 95% CI, 1.2-78.2), but were less likely to have new KS lesions (OR, 0.2; 95% CI, 0.0-1.1) or HHV-8 DNA in PBMC (OR, 0.2; 95% CI, 0.0-1.6) or oral fluids (OR, undefined; = 0.001). CONCLUSIONS: In HHV-8- and HIV-seropositive men, HHV-8 DNA is associated with KS. Among men without KS, HHV-8 DNA is most commonly found in oral fluids. High HHV-8 antibody titers may protect against circulating HHV-8 and new KS lesions.


Assuntos
Infecções por HIV/complicações , Herpesvirus Humano 8/isolamento & purificação , Sarcoma de Kaposi/virologia , Infecções Oportunistas Relacionadas com a AIDS/complicações , Infecções Oportunistas Relacionadas com a AIDS/imunologia , Adulto , Anticorpos Antivirais/análise , Contagem de Linfócito CD4 , Estudos Transversais , DNA Viral/sangue , Infecções por HIV/imunologia , Herpesvirus Humano 8/imunologia , Homossexualidade Masculina , Humanos , Masculino , Razão de Chances , Fatores de Risco , Sarcoma de Kaposi/imunologia , Carga Viral
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