LUISA LINA VILLA
Projetos de Pesquisa
Unidades Organizacionais
Departamento de Radiologia, Faculdade de Medicina - Docente
LIM/24 - Laboratório de Oncologia Experimental, Hospital das Clínicas, Faculdade de Medicina - Líder
LIM/24 - Laboratório de Oncologia Experimental, Hospital das Clínicas, Faculdade de Medicina - Líder
15 resultados
Resultados de Busca
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- Oral HPV prevalence assessment by Linear Array vs. SPF10 PCR-DEIA-LiPA(25) system in the HPV Infection in Men (HIM) study(2020) BETTAMPADI, Deepti; SIRAK, Bradley A.; FULP, William J.; ABRAHAMSEN, Martha; VILLA, Luisa L.; LAZCANO-PONCE, Eduardo; SALMERON, Jorge; ISAACS-SORIANO, Kimberly A.; BAGGIO, Maria L.; TRENADO, Manuel Quiterio; GIULIANO, Anna R.Introduction: Oral human papillomavirus (HPV) attributable oropharyngeal cancers are on the rise in many countries. Oral HPV infections among healthy individuals are commonly detected using oral gargle samples. However, the optimal method for HPV genotyping oral gargle specimens in research studies has not been previously evaluated. Materials and methods: Oral gargle samples from 1455 HPV Infection in Men (HIM) study participants were HPV genotyped using two different methods: Linear Array and the SPF10 PCR-DEIA-LiPA(25). The sensitivity of the two tests for detecting individual HPV types and grouped HPV types, high-risk HPV, low-risk HPV, grouped 4-HPV-vaccine types, and grouped 9-HPV-vaccine-types, and the degree of concordance between the two tests was assessed. We also examined whether socio-demographic-behavioral factors were associated with concordance between the two assays. Results: The sensitivity of SPF10 PCR-DEIA-LiPA(25) was higher than Linear Array, with the exception of HPV 70, for the detection of oral HPV. The prevalence ratio of SPF10 PCR-DEIA-LiPA(25) to Linear Array varied between 1.0 and 9.0 for individual HPV genotypes, excluding HPV 70, and between 3.8 and 4.4 for grouped 4-valent and 9-valent HPV vaccine types, respectively. There was no association between socio-demographic-behavioral factors and discordance in results between the two tests for oral HPV 16 detection. Discussion: SPF10 PCR-DEIA-LiPA(25) was more sensitive than Linear Array for detecting HPV in oral gargle samples. Given the growing importance of detecting oral HPV infection for research studies of oral HPV natural history and vaccine effectiveness evaluation, we recommend using methods with higher sensitivity such as SPF10 PCR-DEIA-LiPA(25) for detecting HPV in oral gargle samples.
conferenceObject Cervical cancer immunomodulation through stat3 and p65 NF kappa b: Effects beyond the tumor microenvironment.(2020) ROSSETTI, Renata Ariza Marques; RODRIGUEZ, Gretel Rodriguez; SILVA JR., Ildelfonso Alves Da; CARVALHO, Jesus De Paula; ROSA, Maria Beatriz Sartor De Faria; VILLA, Luisa Lina; LEPIQUE, Ana Paula- Role of microRNAs in a panel of human cervical cancer cell lines(2020) CAUSIN, R. L.; NUNES, M. R.; SILVA, L. S. da; FREITAS, A. J. A. de; CARVALHO, A. C.; SICHERO, L. C.; VILLA, L. L.; SILVA, V. A. O.; REIS, R. M. V.; MARQUES, M. M. C.
- The contribution of Latin American research to HPV epidemiology and natural history knowledge(2020) SICHERO, L.; PICCONI, M. A.; VILLA, L. L.Our aim was to review the major contributions of studies conducted in different Latin American (LA) countries to the field of human papillomavirus (HPV) epidemiology, natural history, risk of disease, and prevention strategies, mainly in the uterine cervix. Although cytological screening is established in several countries in LA, incidence and mortality rates from cervical cancer (CC) are still extremely high. Finally, data from large cohort studies conducted in LA countries provided seminal data to propose primary and secondary prevention modalities: the HPV vaccine has been introduced in the national immunization programs of several LA countries and multiple screening experiences using HPV testing are under evaluation in the region.
- High p16(INK4a) immunoexpression is not HPV dependent in oral leukoplakia(2020) TOMO, Saygo; BISS, Stephanye Pinto; CRIVELINI, Marcelo Macedo; OLIVEIRA, Sandra Helena Penha de; BIASOLI, Eder Ricardo; TJIOE, Kellen Cristine; BERNABE, Daniel Galera; VILLA, Luisa Lina; MIYAHARA, Glauco IssamuObjective: To evaluate the prevalence of HPV DNA detection in fresh tissue from oral leukoplakia by Linear Array assay, and its correlation with p16(INK4a) immunoexpression in the northwest region of the Sao Paulo state, Brazil. Patients and methods: Fifty patients diagnosed with oral leukoplakia were included in the study. Sociodemographic, clinicopathologic and lifestyle data, fresh tissue and formalin fixed paraffin embedded (FFPE) tissue samples were collected. The fresh tissue was stored at -80 degrees C and then submitted to further viral DNA detection by the Linear Array method. Immunohistochemical analysis for the p16(INK4a) expression was performed. Results: Of the 50 patients included in the study, 62 % were men, and the age ranged from 25 to 82 years. Twenty-three (46 %) were elderly, 46 % were middle-aged adults, and only 12 % were young adults. Most patients were smokers (76 %), 14 % were former smokers, and 10 % were non-smokers. Most patients (56 %) were current drinkers, 22 % were ex-drinkers and 22 % were non-drinkers. Thirty-two percent of the lesions presented some degree of dysplasia. No lesions were positive to HPV by Linear Array detection. Thirty (60 %) OL had p16-low immunoexpression and 20 (40 %) had p16-high immunoexpression. Conclusion: HPV was not identified in the population studied. The high p16(INK4a) immunoexpression is not dependent on HPV in oral leukoplakia. Broader epidemiological studies are required to clarify the geographic variability in the prevalence of HPV in head and neck squamous cell carcinoma and oral potentially malignant lesions.
- Impact of human papillomavirus status on survival and recurrence in a geographic region with a low prevalence of HPV-related cancer: A retrospective cohort study(2020) CICCO, Rafael De; MENEZES, Rosilene de Melo; NICOLAU, Ulisses R.; PINTO, Clovis A. L.; VILLA, Luisa L.; KOWALSKI, Luiz P.Background Human papillomavirus (HPV)-positive oropharyngeal squamous cell carcinoma (OPSCC) is associated with better tumor-response rates and survival outcomes. However, in some geographic regions, the impact of HPV infection on prognosis remains unclear. The aim of this study was to describe the patterns of recurrence and survival among patients treated for OPSCC in a geographic region with a reported low prevalence of HPV-related OPSCC. Methods We retrospectively evaluated 215 patients diagnosed with American Joint Committee on Cancer (AJCC) stages I to IV OPSCC who were treated with upfront surgery or radiation therapy with or without chemotherapy in a tertiary Cancer Center in Brazil. The collected data included demographic information, HPV status, tobacco and alcohol consumption, and pathologic and treatment variables. The patterns of recurrence were recorded according to HPV status. Disease-specific survival and recurrence-free survival were calculated. Results One hundred twenty-seven (59.1%) patients were diagnosed with HPV-positive OPSCC. According to the AJCC eighth edition, 34 (15.8%), 71 (33%), 47 (21.9%), and 60 (27.9%) patients had stage I, II, III, and IV disease, respectively. Surgery was performed in 109 (50.7%) cases, and upfront chemoradiation regimens were provided in 104 (48.4%, P = .69) patients. Overall, the 5-year cancer-specific survival was 73.5% and 68.1% for patients positive and negative to HPV, respectively. Tobacco status was considered the only independent prognostic factor for survival. Furthermore, HPV status was not associated with differences in recurrence rates (P = .68). While all distant relapses were found to be lung metastases in the HPV-negative group, we observed unusual sites of distant metastases in the HPV-positive group. Conclusions HPV status was not associated with higher rates of survival among the investigated population. Moreover, smoking status was considered the only independent prognostic factor for survival. Furthermore, patients with HPV-positive tumors were more likely than patients with HPV-negative OPSCC to have unusual distant metastases.
conferenceObject Prevalence association between HPV and fistulising perianal Crohn's disease(2020) BOARINI, L. Rodrigues; SOBRADO JR., C. W.; GUZELA, V. R.; GONCALVES, A. Pozzebon; VILLA, L. Lina; NADAL, S. R.; COSTA, A. Da Costa Lino; NAHAS, S. C.- Oral human papillomavirus prevalence and type distribution by country (Brazil, Mexico and the United States) and age among HPV infection in men study participants(2020) BETTAMPADI, Deepti; VILLA, Luisa L.; PONCE, Eduardo L.; SALMERON, Jorge; SIRAK, Bradley A.; ABRAHAMSEN, Martha; RATHWELL, Julie A.; REICH, Richard R.; GIULIANO, Anna R.Incidence of human papillomavirus (HPV) attributable oropharyngeal cancers (OPCs) has been increasing globally, especially among men in high-income countries. There is a lack of studies comparing oral HPV prevalence by age and country among healthy men. The purpose of our study was to assess oral HPV prevalence by country and age. Participants of the HPV Infection in Men Study (HIM), a cohort of 3,098 healthy men from Sao Paulo, Brazil, Cuernavaca, Mexico and Tampa, USA, were studied. Oral HPV prevalence and type distribution were assessed using the SPF10 PCR-DEIA-LiPA(25) system. The prevalence of any HPV in Brazil, Mexico and the US was 8.7% (95% CI: 7.1%, 10.4%), 10.0% (95% CI: 8.3%, 12.1%) and 7.6% (95% CI: 5.9%, 9.5%), respectively, while the prevalence of high-risk HPV was 5.3% (95% CI: 4.1%, 6.7%), 7.3% (95% CI: 5.7%, 9.0%) and 5.4% (95% CI: 4.0%, 7.0%), respectively. No significant differences in prevalence of grouped HPV types were observed by country despite significant differences in sexual behaviors. However, the age-specific prevalence of oral HPV differed by country. Brazilian (6.0% [95% CI: 3.4%, 9.7%]) and Mexican (9.2% [95% CI: 5.6%, 14.0%]) participants had peak high-risk HPV prevalence among men aged 41-50 years whereas the US participants had peak prevalence at ages 31-40 years (11.0% [95% CI: 6.4%, 17.3%]). In conclusion, oral HPV prevalence was low with no difference in overall prevalence observed by country. Factors associated with the differences in oral HPV age-patterning by country and sexual orientation require further study.
- Role of epstein-barr virus in the severity of recurrent respiratory papillomatosis(2020) COSTA, Victor; EL-ACHKAR, Vivian Narana; BARROS, Patricia Pimentel de; LEON, Jorge Esquiche; RIBEIRO-SILVA, Alfredo; CARLOS, Roman; PIGNATARI, Shirley Shizue Nagata; FERREIRA, Silvaneide; MELLO, Barbara Pereira; SICHERO, Laura; VILLA, Luisa Lina; KAMINAGAKURA, EstelaObjective The objective was to investigate the prevalence of the Epstein-Barr virus (EBV) and its association with human papilloma virus (HPV) detection, clinicopathological features, and the severity of recurrent respiratory papillomatosis (RRP). Methods Cases of juvenile recurrent respiratory papillomatosis (JRRP) (n = 36) and adult recurrent respiratory papillomatosis (ARRP) (n = 44) were collected retrospectively and subdivided into low- and high-risk severity groups based on the Derkay score. We performed HPV detection and genotyping using a reverse hybridization protocol and investigated the presence of EBV by polymerase chain reaction (PCR) and in situ hybridization. CD21 levels were accessed by immunohistochemistry. Results All samples were HPV-positive, including 49 cases of HPV 6, 26 cases of HPV 11, four cases of HPV 6 and 11 coinfections, and one case of HPV 16. EBV-DNA was detected in nine samples by PCR, although none of the cases were positive by means of in situ hybridization. CD21 immunoexpression was not statistically associated with any of the variables analyzed. HPV 6 detection was significantly higher in ARRP cases (P = 0.03), whereas HPV 11 was more prevalent in JRRP cases (P = 0.02) and was even more prevalent in JRRP cases of greater severity (Derkay laryngoscopic scale >= 20) (P = 0.04). Conclusion The presence of EBV does not seem to play an important role in the progression/severity of RRP. Level of Evidence 4 Laryngoscope, 2019
- Sex differences in the prevalence and determinants of HPV-related external genital lesions in young adults: a national cross-sectional survey in Brazil(2020) COMERLATO, Juliana; KOPS, Natalia Luiza; BESSEL, Marina; HORVATH, Jaqueline Driemeyer; FERNANDES, Bruna Vieira; VILLA, Luisa Lina; SOUZA, Flavia Moreno Alves de; PEREIRA, Gerson Fernando Mendes; WENDLAND, Eliana MarciaBackground External genital lesions (EGL) are the most common sexually transmitted infections (STIs). We aimed to evaluate the prevalence, determinants and sex differences in EGL among young adults from Brazil. Methods Overall, 7694 participants (aged 16 to 25 years) underwent an interview, genital examination and sampling for HPV genotyping. Results The prevalence of EGL was 4.08% (234) and is more frequent in men (5.72%) than women (2.31%) (p < 0.001). Genital lesions were significantly associated with male sex, infection by high-risk and multiple HPV types, having more than two sexual partners in the last year, smoking status and the presence of other STI. While alcohol use was associated with a higher prevalence of EGL in women, same-sex sexual relationship increase the prevalence in men. In the EGL group, 67.79% (p = 0.032) were positive for HPV infection and the types HPV6 and HPV11 were the most prevalent ones. Conclusion The prevalence of EGL in young adults was consistently high, and most cases were associated with genital HPV infection and STIs. Although men have a higher prevalence, both sexes share most genital lesion determinants. The promotion of sexual education and vaccination especially focus in young men, who are usually outside the targets of primary health care programmes, can prevent EGL in Brazilian young adults.