Results: 54

Expression of urokinase-type plasminogen activator and its receptor in squamous cell carcinoma of the oral tongue

Abstract Urokinase-type plasminogen activator (uPA) and its receptor (uPAR) act in the proteolysis of basement membrane and extracellular matrix structures, facilitating tumor invasion. The purpose of this study was to evaluate the relationship between these proteins and clinicopathological parameters in...

Expression of E-cadherin, Slug and NCAM and its relationship to tumor invasiveness in patients with acromegaly

Braz. j. med. biol. res; 51 (2), 2018
Pituitary adenomas account for 10-15% of primary intracranial tumors. Growth hormone (GH)-secreting adenomas account for 13% of all pituitary adenomas and cause acromegaly. These tumors can be aggressive, invade surrounding structures and are highly recurrent. The objective of this study was to evaluate ...

Prognostic value of carcinoembryonic antigen levels in transoperative peritoneal lavage in patients with gastric cancer

ABCD (São Paulo, Impr.); 31 (1), 2018
ABSTRACT Background: The carcinoembryonic antigen level in peritoneal lavage has been showing to be a reliable prognostic factor in gastric cancer. Aim: To identify any association between carcinoembryonic antigen level in peritoneal lavage, in gastric cancer patients, with mortality, peritoneal recur...

Assessment of HER-2 status in invasive breast cancer in Brazil

Summary Objective: To characterize the frequency of HER-2-positive breast cancer in Brazil. Method: In this prospective observational study, we first ascertained the HER-2 status of invasive breast cancer specimens by automated immunohistochemistry (IHC). For specimens classified as 2+ by IHC, we perfo...

Evaluation of the p16 and Ki-67 Biomarkers as Predictors of the Recurrence of Premalignant Cervical Cancer Lesions after LEEP Conization

Abstract Objective To evaluate the expressions of biomarkers p16 and Ki-67 in low-grade (LG) or high-grade (HG) lesions, and to relate them to risk factors and the recurrence of these lesions. Methods A retrospective case-control study of 86 patients with LG and HG lesions who underwent a loop electr...

Analysis of various potential prognostic markers and survival data in clear cell renal cell carcinoma

Int. braz. j. urol; 43 (3), 2017
ABSTRACT Purpose Clear cell renal cell cancers frequently harbor Von Hippel-Lindau gene mutations, leading to stabilization of the hypoxia-inducible factors (HIFs) and their target genes. In this study, we investigated the relationship between vascular endothelial growth factor (VEGF), HIF-1α, HIF...

Comparison of microRNA profiles between benign and malignant salivary gland tumors in tissue, blood and saliva samples: a prospective, case-control study

Abstract Introduction: Salivary gland tumors (SGTs) are rare head and neck malignancies consisting of a spectrum of tumors with different biological behaviors. Objective: In this study we aimed to find out differential expression of microRNA profiles between benign and malignant SGTs. Methods: We inve...

Analysis of gene expression EGFR and KRAS, microRNA-21 and microRNA-203 in patients with colon and rectal cancer and correlation with clinical outcome and prognostic factors

Acta cir. bras; 32 (3), 2017
Abstract Purpose: To evaluate the expression of EGFR, KRAS genes, microRNAs-21 and 203 in colon and rectal cancer samples, correlated with their age at diagnosis, histological subtype, value of pretreatment CEA, TNM staging and clinical outcome. Methods: Expression of genes and microRNAs by real time ...

Metastatic Lymphoepithelioma-like Hepatocellular Carcinoma: a Potential Diagnostic Pitfall and Demonstration of Pd-l1 Expression

Ann. hepatol; 16 (1), 2017
Abstract: Lymphoepithelioma-like hepatocellular carcinoma (LEL-HCC) is a rare primary hepatic neoplasm with female predominance and relatively good prognosis. We report a 73-year-old female with chronic hepatitis B who developed metastatic lesions 5 years after underwent resection for LEL-HCC. The metast...

Valor prognóstico da imunoexpressão de podoplanina e de CD44v6 na recidiva locorregional dos pacientes com câncer de lábio

O objetivo deste estudo consistiu em avaliar a expressão imuno-histoquímica da podoplanina e do CD44v6 pelas células malignas, verificando a associação destas proteínas com as variáveis clínicas, microscópicas, com o índice histopatológico de malignidade e com a sobrevivência livre de doença...