The importance of CD39, CD43, CD81, and CD95 expression for differentiating B cell lymphoma by flow cytometry.

BACKGROUND: B cell lymphomas' (BCL) current diagnosis is usually based on a combination of morphology, immunophenotype, recurrent cytogenetic aberration and clinical features. However, even with these diagnostic tools, a definitive diagnosis can be difficult to achieve. Therefore, the aim of this study was to assess the profile of CD39, CD43, CD81, and CD95 expressions in diffuse large B cell lymphoma (DLBCL), follicular lymphoma (FL), and Burkitt lymphoma (BL) cases. METHODS: To address this issue, we investigated the expression of CD39, CD43, CD81, and CD95 by eight-color flow cytometry in retrospective cases from 2014 to 2016. RESULTS: The study included 27 adult patients diagnosed with DLBCL, FL, and BL during the study period. Four patients were diagnosed with germinal center B cell-like DLBCL (GCB DLBCL), seven with non-GCB DLBCL, nine with FL, and seven with BL. CD39 seems to be especially relevant to differentiate non-GCB DLBCL from BL and from FL. BL showed stronger expression of CD43 when compared to FL and GCB DLBCL. Moreover, CD43 may help to distinguish non-GCB DLBCL from GCB DLBCL. CD81 expression was much stronger in BL when compared to the other three groups of patients. Lastly, CD95 may also help to distinguish BL from the other subtypes, as BL cells expressed this antigen at low levels. CONCLUSIONS: In combination, CD39, CD43, CD81, and CD95 expressions appear to be helpful to distinguish CD10+ BCL, particularly BL. Phenotypic distinction between FL and GCB DLBCL remains challenging and requires further studies. © 2017 International Clinical Cytometry Society.

Câncer de pulmão: dados de três anos do registro hospitalar de câncer de um hospital do sul do Brasil / Lung cancer: three years of data hospital cancer registry of a Brazil south hospital

O Câncer de pulmão é uma neoplasia frequente. Na região sul, observam-se as maiores taxas de incidência e mortalidade relacionadas à doença no país. Objetivou-se avaliar o perfil dos pacientes com câncer de pulmão, atendidos no em um hospital do sul do Brasil. Como metodologia foi realizado um estudo retrospectivo, transversal, descritivo e analítico que utilizou o banco de dados do referido hospital, no período de 2007 a 2010. Analisou-se dados demográficos, socioeconômicos, características da neoplasia, diagnósticos e tratamentos.Foram avaliados dados de 103 pacientes com câncer de pulmão, com idade mediana de 65 anos, sexo masculino (71,8%), brancos (78,6%), com até primeiro grau incompleto (67%). O principal tipo histológico foi adenocarcinoma (24,3%). Não havia informação sobre o estadiamento em 48,5% dos pacientes. O estádio 4foi encontrado em 18,4% e apenas 10,7% apresentavam estadios precoces (I e II). A mediana dos dias entre primeira consulta e diagnóstico foi de 15 dias e entre o diagnóstico e o primeiro tratamento9dias. A principal forma de diagnóstico foi através de exame histológico do tumor primário (48,5%). Apenas 27,2% dos pacientes realizaram tratamento na própria instituição e 14,6% realizaram cirurgia de ressecção tumoral. A maioria (74,8%) não realizou nenhum tratamento no hospital. Observou-se uma tendência dos adenocarcinomasemse apresentarem em estadios precoces. Este hospital não realizou a maior parte do tratamento e nem o seguimento da maioria destes pacientes, mas desempenhou importante papel na investigação diagnóstica.

Lung cancer is a common cancer. In the southern region, are observed the highest incidence and mortality rates related to the disease in the country. The objective was to evaluate the profile of patients with lung cancer treated at a hospital in southern Brazil. The methodology was conducted a retrospective, cross-sectional, descriptive and analytical study using the Hospital database, from 2007 to 2010. We analyzed demographic, socioeconomic, tumor characteristics, diagnosis and treatment. Data were collected from 103 patients with lung cancer, with a median age of 65, male (71.8%), white (78.6%), with up to incomplete primary education (67%). The main histological type was adenocarcinoma (24.3%). There was no information about the staging in 48.5% of patients. The stadium 4foi found in 18.4% and only 10.7% had early stages (I and II). The median of days between the first visit and diagnosis was 15 days and between the first diagnosis and treatment 9dias. The main form of diagnosis was by histological examination of the primary tumor (48.5%). Only 27.2% of the patients underwent treatment at the institution and 14.6% underwent tumor resection. Most (74.8%) did not perform any treatment in the hospital. There was a tendency of adenocarcinomas in presenting themselves at early stages. This hospital did not perform most of the treatment nor the follow-up of most of these patients, but played an important role in diagnosis.

Mature B cell neoplasms: retrospective analysis of 93 cases diagnosed between 2011 and 2014 in a University Hospital in southern Brazil.

BACKGROUND: According to the 2008 World Health Organization classification, mature B-cell neoplasms are a heterogeneous group of diseases that include B-cell lymphomas and plasma cell disorders. These neoplasms can have very different clinical behaviors, from highly aggressive to indolent, and therefore require diverse treatment strategies. OBJECTIVE: The aim of this study was to assess the profile of 93 patients diagnosed with mature B-cell neoplasms monitored between 2011 and 2014. METHODS: A review of patients' charts was performed and laboratory results were obtained using the online system of the Universidade Federal de Santa Catarina. RESULTS: The study included 93 adult patients with mature B-cell neoplasms. The most frequent subtypes were multiple myeloma, chronic lymphocytic leukemia, diffuse large B-cell lymphoma, follicular lymphoma, and Burkitt's lymphoma. The median age at diagnosis was 58 years with a male-to-female ratio of 1.3:1. There were statistical differences in terms of age at diagnosis, lactate dehydrogenase activity and Ki-67 expression among the subtypes of B-cell lymphoma. According to the prognostic indexes, the majority of multiple myeloma patients were categorized as high risk, while the majority of chronic lymphocytic leukemia patients were classified as low risk. CONCLUSIONS: This study demonstrates the profile of patients diagnosed with mature B-cell neoplasms in a south Brazilian university hospital. Of the B-cell lymphoma, Burkitt's lymphoma presented particular features regarding lactate dehydrogenase activity levels, Ki-67 expression, age at diagnosis, and human immunodeficiency virus infection.

Individuals with hematological malignancies before undergoing chemotherapy present oxidative stress parameters and acute phase proteins correlated with nutritional status.

Hematological malignancies present abnormal blood cells that may have altered functions. This study aimed to evaluate nutritional status, acute phase proteins, parameters of cell's functionality, and oxidative stress of patients with hematological malignancies, providing a representation of these variables at diagnosis, comparisons between leukemias and lymphomas and establishing correlations. Nutritional status, C-reactive protein (CRP), albumin, phagocytic capacity and superoxide anion production of mononuclear cells, lipid peroxidation and catalase activity in plasma were evaluated in 16 untreated subjects. Main diagnosis was acute leukemia (n = 9) and median body mass index (BMI) indicated overweight (25.6 kg/m(2)). Median albumin was below (3.2 g/dL) and CRP above (37.45 mg/L) the reference values. Albumin was inversely correlated with BMI (r = -0.53). Most patients were overweight before the beginning of treatment and had a high CRP/albumin ratio, which may indicate a nutrition inflammatory risk. BMI values correlated positively with lipid peroxidation and catalase activity. A strong correlation between catalase activity and lipid peroxidation was found (r = 0.75). Besides the elevated BMI, these patients also have elevated CRP values and unexpected relations between nutritional status and albumin, reinforcing the need for nutritional counseling during the course of chemotherapy, especially considering the correlations between oxidative stress parameters and nutritional status evidenced here.

Evaluation of multidrug resistance in 46 newly diagnosed patients with acute leukemia.

OBJECTIVES: The aim of the present study was to assess the expression profile of multidrug resistance (MDR)-related proteins ABCB1, ABCC1 and LRP in 46 patients with acute leukemia (AL). METHODS: The levels of MDR gene mRNA expression and protein expression at diagnosis were analyzed by semi-quantitative PCR and flow cytometry, respectively. RESULTS: In the adult group, higher expression levels of abcc1 gene were associated with older age and lower levels of lactate dehydrogenase (LDH). In the pediatric group, abcc1 gene expression levels were associated with higher CD34 expression and a higher ABCB1 protein expression was correlated with high WBC counts. DISCUSSION/CONCLUSION: The present data indicate that abcb1 gene overexpression may be associated with a poor prognosis in adults with AL and that ABCB1 and abcc1 expression correlates with different prognostic factors in pediatric patients with AL. Our findings demonstrate that the method of choice to evaluate chemotherapy resistance-related proteins is a major variable.

Diagnosticando depressão em pacientes internados com doenças hematológicas: prevalência e sintomas associados / Diagnosing depression among hematological impatients: prevalence and associated symptons

Introdução: não encontramos estudos avaliando o diagnóstico e a prevalência de depressão em pacientes hematológicos aqui no Brasil. Objetivo: verificar a prevalência dos sintomas depressivos e quais deles mais se associam à depressão em pacientes internados com doenças hematológicas. Métodos: num estudo transversal, 104 pacientes consecutivamente internados nos leitos da hematologia do Hospital Universitário da Universidade Federal de Santa Catarina (HU/UFSC) foram avaliados. Foram preenchidos questionários de variáveis sociodemográficas e de história psiquiátrica. O índice Charlson de co-morbidade (IC) foi usado para medir gravidade física. Foi aplicado, também, o inventário Beck de depressão (BDI). Aqueles que tiveram pontuação acima de 9 na soma dos 13 primeiros itens do BDI(BDI-13) foram considerados deprimidos. Também foi verificada a freqüência caso fosse utilizada a escala completa com 21 itens (BDI-21), com ponto de corte 16/17. Resultados: as prevalências foram: BDI-13 = 25% e BDI-21 = 32,7%. Após controle para fatores de confusão, os sintomas que permaneceram no modelo de regressão logística, indicando que melhor detectavam os deprimidos, foram sensação de fracasso, anedonia, culpa e fadiga. Conclusão: cerca de um quarto a um terço dos pacientes internados com doenças hematológicas tinham sintomas depressivos significativos, e os sintomas que melhor os discriminaram foram sensação de fracasso, anedonia, culpa e fadiga.