MARCO AURELIO VAMONDES KULCSAR

(Fonte: Lattes)
Índice h a partir de 2011
17
Lattes
ResearcherID
ORCID
Projetos de Pesquisa
Unidades Organizacionais
Instituto Central, Hospital das Clínicas, Faculdade de Medicina - Médico
Instituto do Câncer do Estado de São Paulo, Hospital das Clínicas, Faculdade de Medicina - Médico
LIM/28 - Laboratório de Cirurgia Vascular e da Cabeça e Pescoço, Hospital das Clínicas, Faculdade de Medicina

Filtros

Limpar filtros

Configurações

Assunto: Oncology ×

Resultados de Busca

Agora exibindo 1 - 10 de 13
  • conferenceObject
    Long term toxicities after cisplatin-based concurrent chemoradiation in head & neck squamous cell carcinoma (HNSCC) disease-free patients: A cross-sectional study
    (2015) RIVELLI, T. G.; SIMAO, E. F.; MAK, M. P.; MARTINS, R. Eiras; TAKAHASHI, T. K.; MARINI, A. M.; ROITBERG, F. S. R.; MESQUITA, C.; KULCSAR, M. A. V.; CASTRO JR., G.
  • conferenceObject
    Survival predictors in patients with head and neck cancer treated with surgical resection
    (2017) FRANCO, R. C. D. O.; MATOS, L. L. De; CASTRO JUNIOR, G. De; KULCSAR, M. A. V.; MARTA, G. N.
  • article 0 Citação(ões) na Scopus
    Prognostic Value of Hematological Parameters in Oral Squamous Cell Carcinoma
    (2023) TREVISANI, Lorenzo Fernandes Moca; KULCSAR, Isabelle Fernandes; KULCSAR, Marco Aurelio Vamondes; DEDIVITIS, Rogerio Aparecido; KOWALSKI, Luiz Paulo; MATOS, Leandro Luongo
    Introduction: Oral squamous cell carcinoma (OSCC) remains a significant public health concern. The variables utilized to determine appropriate treatment for this disease also represent its most unfavorable prognostic factors, with these parameters solely determined by the neoplasm and its behavior. However, a lack of well-established indices is evident in the literature that specifically relate to the patient and indicate a worse prognosis. Objective: To assess the prognostic impact of hematological indices in patients with OSCC. Methods: This retrospective cohort study included patients with oral squamous cell carcinoma (OSCC) who underwent curative-intent treatment. Treatment encompassed surgery, followed by adjuvant therapy, as necessary. Laboratory tests were conducted immediately prior to surgery, and demographic information was obtained from medical records. Results: The cohort comprised 600 patients, with 73.5% being male subjects. Adjuvant treatment was recommended for 60.3% of patients. Throughout the follow-up period, 48.8% of participants died. Univariate analysis indicated that perineural invasion, angiolymphatic invasion, pT4 tumors, lymph node metastases, extranodal extravasation, RDW > 14.3%, NLR (neutrophil-lymphocyte ratio) > 3.38, PLR (platelet-lymphocyte ratio) > 167.3, and SII (systemic inflammatory/immune response index) > 416.1 were factors associated with increased mortality. These threshold values were established through ROC curve analysis. In the multivariate analysis, angiolymphatic invasion (HR = 1.43; 95% CI: 1.076-1.925; p = 0.014), pT4a/b tumors (HR = 1.761; 95% CI: 1.327-2.337; p < 0.001), extranodal extravasation (HR = 1.420; 95% CI: 1.047-1.926; p = 0.024), and RDW (HR = 1.541; 95% CI: 1.153-2.056; p = 0.003) were identified as independent risk factors for decreased overall survival. Conclusions: RDW > 14.3% was proven to be a reliable parameter for assessing overall survival in patients with OSCC. Further studies are required to evaluate the clinical applicability of other hematological indices.
  • article 67 Citação(ões) na Scopus
    External validation of the AJCC Cancer Staging Manual, 8th edition, in an independent cohort of oral cancer patients
    (2017) MATOS, Leandro Luongo; DEDIVITIS, Rogerio Aparecido; KULCSAR, Marco Aurelio Vamondes; MELLO, Evandro Sobroza de; ALVES, Venancio Avancini F.; CERNEA, Claudio Roberto
    Objectives: To evaluate the new American Joint Committee on Cancer (AJCC) cancer staging manual (8th edition) in an independent cohort of patients surgically treated for oral squamous cell carcinoma in order to determine whether the upstaging of pT and pN classification was indicative of a worse prognosis. Methods: A cohort of 298 patients was analyzed retrospectively. Results: Of these patients, 22.8% received an upstaging when the depth of invasion was included into the pT classification. Similarly, 29.2% of them were upstaged when extracapsular extension was added to pN classification. Twenty-eight of 68 patients (41.2%) that received an upstaging of pT classification died, and 23 (33.8%) experienced disease recurrence compared to 98/229 (42.8%) and 68/229 (29.7%), respectively, for those with the same pT during follow-up. With regard to pN classification, 70.6% of upstaged patients (60/85) died, and 50.6% (43/85) developed recurrence of the disease compared to 63/205 (30.7%) and 42/205 (20.5%), respectively, for those with the same pN during follow-up. Patients who were upstaged in pT classification presented a worse DFS (51.1% versus 80.4%, P = 0.007) and OS (31.5% versus 58.6%, P = 0.017). Similarly, those that were upstaged in pN classification presented a worse DFS (17.1% versus 61.2%, P = 0.001) and OS (8.5% versus 37.9%, P < 0.001). Conclusion: The new AJCC cancer staging manual (8th edition) allows a better stratification of oral SCC patients. By including the depth of invasion to the pT classification and extranodal extension to the pN classification, a worse disease-free and overall survival was assessed for these patients.
  • article 7 Citação(ões) na Scopus
    Valproic acid combined with cisplatin-based chemoradiation in locally advanced head and neck squamous cell carcinoma patients and associated biomarkers
    (2020) MAK, Milena Perez; PASINI, Fatima Solange; DIAO, Lixia; GARCIA, Fabyane O. Teixeira; TAKAHASHI, Tiago Kenji; NAKAZOTO, Denyei; MARTINS, Renata Eiras; ALMEIDA, Cristiane Maria; KULCSAR, Marco Aurelio Vamondes; LAMOUNIER, Valdelania Aparecida; NUNES, Emily Montosa; SOUZA, Isabela Cristina de; GARCIA, Marcio Ricardo Taveira; AMADIO, Alex Vieira; SIQUEIRA, Sheila Aparecida C.; SNITCOVSKY, Igor Moyses Longo; SICHERO, Laura; WANG, Jing; JR, Gilberto de Castro
    Background: Cisplatin-based chemoradiation (CCRT) offers locally advanced head and neck squamous cell carcinoma (LAHNSCC) patients high local control rate, however, relapses are frequent. Our goal was to evaluate if association of valproic acid (VPA), a histone deacetylase (HDAC) inhibitor, with CCRT improved response rate (RR) and associated biomarkers. Methods: This phase II trial included patients with unresectable locally advanced (LA) oropharynx (OP) squamous cell carcinoma. CCRT began after 2 weeks of VPA (P1). Primary goal was RR at 8 weeks after chemoradiation (CRT)+VPA (P2). Biomarkers included microRNA (miR) polymerase chain reaction (PCR)-array profiling in plasma compared to healthy controls by two-sample t-test. Distribution of p-values was analysed by beta-uniform mixture. Findings were validated by real-time PCR quantitative polymerase chain reaction (qPCR) for selected miRs in plasma and saliva. p16, HDAC2 and RAD23 Homolog B, Nucleotide Excision Repair Protein (HR23B) tumour immunohistochemistry were evaluated. Results: Given significant toxicities, accrual was interrupted after inclusion of ten LA p16 negative OP patients. All were male, smokers/ex-smokers, aged 41-65 and with previous moderate/high alcohol intake. Nine evaluable patients yielded a RR of 88%. At false discovery rate of 5%, 169 miRs were differentially expressed between patients and controls, including lower expression of tumour suppressors (TSs) such as miR-31, -222, -let-7a/b/e and -145. miR-let-7a/e expression was validated by qPCR using saliva. A HDAC2 H-score above 170 was 90% accurate in predicting 6-month disease-free survival. Conclusions: VPA and CRT offered high RR; however, with prohibitive toxicities, which led to early trial termination. Patients and controls had a distinct pattern of miR expression, mainly with low levels of TS miRs targeting Tumor protein P53 (TP53). miR-let-7a/e levels were lower in patients compared to controls, which reinforces the aggressive nature of such tumours (NCT01695122).
  • article 0 Citação(ões) na Scopus
    Exploring the use of the GLIM criteria to diagnose malnutrition in cancer inpatients
    (2023) OZORIO, Gislaine Aparecida; RIBEIRO, Lia Mara Kauchi; SANTOS, Barbara Chaves; BRUZACA, Wannia Ferreira de Sousa; ROCHA, Gabriela Del Gallo Vieira da; MARCHI, Luani Maria da Fonseca; SANTOS, Fernando Magri; ALMEIDA, Maria Manuela Ferreira Alves de; KULCSAR, Marco Aurelio Vamondes; RIBEIRO, Ulysses; CORREIA, Maria Isabel Toulson Davisson; WAITZBERG, Dan Linetzky
    Objectives: The Global Leadership Initiative on Malnutrition (GLIM) criteria establish a diagnosis of malnutrition based on the presence of at least one phenotypic and one etiologic criterion. This study aimed to assess the concurrent and predictive validity of the GLIM criteria in hospitalized cancer patients.Methods: This is an observational retrospective study, including 885 cancer patients, ages >18 y, admitted to a medical oncology inpatient unit between 2019 and 2020. All patients at risk for malnutrition according to the Nutritional Risk Screening 2002 score were assessed by the subjective global assessment (SGA) and 14 different combinations of the GLIM criteria. The SGA was considered the gold standard for assessing the con-current validity of the GLIM combinations. For a subsample of patients with data available on inflammatory markers (n = 198), the serum albumin and C-reactive protein were included in the combinations as etiologic criteria. The predictive validity of the different combinations was tested using the occurrence of surgical complications as the clinical outcome. The sensitivity and specificity values were calculated to assess the con-current validity, univariate and multivariate logistic regression models were used to test predictive validity. Adequate concurrent and predictive validity were determined as sensitivity and specificity values >80% and odds ratio values >2.0, respectively.Results: The median age of the patients was 61.0 y (interquartile range = 51.0-70.0). Head and neck cancer was the prevailing diagnosis and 375 patients were at nutritional risk. According to the SGA, 173 (26.1%) patients were malnourished (SGA categories B or C) and the prevalence of malnutrition ranged from 3.9% to 30.0%, according to the GLIM combinations. None of the tested combinations reached adequate concurrent validity; however, the presence of malnutrition according to four combinations independently predicted surgical complications.Conclusions: The predictive validity of the GLIM was satisfactory in surgical cancer patients.
  • conferenceObject
    Phase II trial of valproic acid combined with cisplatin-based chemoradiation in locally advanced (LA) head and neck squamous cell carcinoma (HNSCC) patients (pts).
    (2017) MAK, Milena Perez; PASINI, Fatima Solange; DIAO, Lixia; GARCIA, Fabyane Oliveira Teixeira; TAKAHASHI, Tiago Kenji; AMADIO, Alex Vitorio; SIQUEIRA, Sheila Aparecida Coelho; SICHERO, Laura; SNITCOVSKY, Igor M. L.; KULCSAR, Marco Aurelio Vamondes; WANG, Jing; CASTRO, Gilberto
  • conferenceObject
    Cachexia in head and neck squamous cell carcinoma (HNSCC) patients (pts) after cisplatin-based chemoradiation (CRT): A cross-sectional study.
    (2019) CASTRO, Gilberto; NEVES, Willian das; RIVELLI, Thomas Giollo; SIMAO, Eduardo Furquim; MARTINS, Renata Eiras; KULCSAR, Marco Aurelio Vamondes
  • article 20 Citação(ões) na Scopus
    Prevalence of human papillomavirus types and variants and p16(INK4a) expression in head and neck squamous cells carcinomas in Sao Paulo, Brazil
    (2016) BETIOL, Julio C.; SICHERO, Laura; COSTA, Henrique O. de Olival; MATOS, Leandro L. de; ANDREOLI, Maria A.; FERREIRA, Silvaneide; FARAJ, Sheila F.; MELLO, Evandro S. de; SOBRINHO, Joao S.; BRANDAO, Lenine G.; CERNEA, Claudio R.; KULCSAR, Marco A.; PINTO, Fabio R.; GONCALVES, Antonio J.; MENEZES, Marcelo B.; SILVA, Leonardo; ROSSI, Lia M.; NUNES, Rafaella A. Lima; TERMINI, Lara; VILLA, Luisa L.
    Background: Human papillomavirus (HPV) prevalence in head and neck squamous cell carcinomas (HNSCC) diverges geographically. The reliability of using p16(INK4a) expression as a marker of viral infection is controversial in HNSCC. We evaluated HPV types and HPV-16 variants prevalence, and p16(INK4a) expression in HNSCC specimens provided by two different Institutions in Sao Paulo. Methods: HPV DNA from formalin-fixed specimens was accessed by Inno-LiPA, HPV-16 variants by PCR-sequencing, and p16(INK4a) protein levels by immunohistochemistry. Results: Overall, HPV DNA was detected among 19.4 % of the specimens (36/186). Viral prevalence was higher in the oral cavity (25.0 %, 23/92) then in other anatomical sites (oropharynx 14,3 %, larynx 13.7 %) when samples from both Institutions were analyzed together. HPV prevalence was also higher in the oral cavity when samples from both Institutions were analyzed separately. HPV-16 was the most prevalent type identified in 69.5 % of the HPV positive smaples and specimens were assigned into Asian-American (57.2 %) or European (42.8 %) phylogenetic branches. High expression of p16(INK4a) was more common among HPV positive tumors. Conclusion: Our results support a role for HPV-16 in a subset of HNSCC.
  • article 9 Citação(ões) na Scopus
    Cancer-associated fibroblast regulation by microRNAs promotes invasion of oral squamous cell carcinoma
    (2020) MATOS, Leandro Luongo; MENDERICO JUNIOR, Gilberto Mendes; THEODORO, Therese Rachell; PASINI, Fatima Solange; ISHIKAWA, Marina de Menezes; RIBEIRO, Andromeda Aryane Bomtempo; MELLO, Evandro Sobroza de; PINHAL, Maria Aparecida da Silva; MOYSES, Raquel Ajub; KULCSAR, Marco Aurelio Vamondes; DEDIVITIS, Rogerio Aparecido; CERNEA, Claudio Roberto; KOWALSKI, Luiz Paulo
    The objective of the present study was to evaluate the role of microRNA-mediated remodeling of the extracellular matrix in the process of tumor invasion of oral squamous cell carcinoma and to evaluate its relationship with the prognosis of these patients. This was a retrospective study on material from the paraffin blocks of patients operated on for oral squamous cell carcinoma, in addition to a group of healthy oral mucosa samples of paired patients. miR-1-3p, miR-133-3p, and miR-21-5p were differentially expressed between the superficial and deep tumor groups. miR-21-5p was the one with the greatest accuracy in the differentiation between superficial and deep tumors. By immunohistochemistry, the group of deep tumors showed greater immunoreactivity to matrix metalloproteinases 2 and 9 and laminin a in tumor-associated fibroblasts, with consequent degradation of the basal membrane, measured by greater loss of continuity of type IV collagen. This process was also associated with lower and higher expression of miR-1-3p and miR-21-5p, respectively. There was also a trend toward better overall and disease-free survival rates in patients with higher miR-133a-3p. The present study showed the interaction between microRNAs and extracellular matrix remodeling in oral squamous cell carcinoma.