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Avaliação dos níveis de células CD44high/CD24low E TCD3+, e da expressão dos fatores de transcrição SOX2 e STAT3 no carcinoma escamoso de pênis / Evaluation of CD44highCD24low and TCD3 + cell levels, and expression of SOX2 and STAT3 transcription factors in penile squamous cell carcinoma
São Paulo; s.n; 2019. 99 p. ilust.
Thesis in Portuguese | LILACS, Inca | ID: biblio-1179955
RESUMO

Introdução:

O câncer de pênis (CaPe) tem uma alta incidência em alguns países subdesenvolvidos. O tratamento padrão é a remoção do tumor primário e a linfadenectomia inguinal, em alguns pacientes. O fator prognóstico mais importante é a doença linfonodal, porém os métodos de estadiamento, disponíveis na atualidade são pouco precisos, e a alta taxa de morbidade da linfadenectomia tem estimulado o estudo de biomarcadores preditivos de metástases em linfonodos, selecionando os pacientes que necessitam da linfadenectomia. Os marcadores STAT3 e CD44, CD24, e SOX2+ são conhecidos por serem considerados marcadores de diagnóstico e prognóstico em outros cânceres, mas sem estudos no câncer de pênis.

Objetivo:

Avaliar os níveis das células CD44high/CD24low E TCD3+, e a expressão dos fatores de transcrição SOX2 e STAT3 no carcinoma escamoso de pênis.

Métodos:

Estudo transversal realizado no Hospital de Câncer de Pernambuco (HCP) e Laboratório de Pesquisa Translacional do Instituto de Medicina Integral Prof. Fernando Figueira (IMIP), no período de março de 2015 a dezembro de 2017 em uma população de 38 pacientes com CaPe e controles. Foram realizadas análises de SOX2, STAT3, CD24 e CD44 no sangue e tecido tumoral por citometria de fluxo.

Resultados:

A mediana da idade foi de 61 anos (37 - 80 anos). A maioria dos pacientes apresentou tumor localizado na glande (76,3%), tipo histológico usual (71,0%), de grau 1 (86,8%), sem invasão vascular e perineural (86,8% e 68,4%), sem presença de metástases (86,8%). Com relação ao estadiamento, 55,3% dos pacientes apresentavam estágio pT2 e 34,2% pT1. Foram encontrados níveis elevados de CD44highCD24low, CD44highCD24lowpSTAT3+ e CD44highCD24lowSOX2+nos pacientes, quando comparados aos controles (p<0,05). Foram observados níveis percentuais reduzidos de leucócitos SOX2+ e TCD3+/SOX2+, e elevados leucócitos pSTAT3 nos pacientes, quando comparados aos dos controles saudáveis. Foram constatados níveis elevados de CD44highCD24low e de leucócitos SOX2+ no grupo de pacientes com invasão perineural, tamanho tumoral > 3 cm e em estádio pT2 (p<0,05). Foram encontradas associação dos níveis de célulasCD44high/CD24low e no sangue periférico com o tamanho do tumor (p=0,04) e status de sobrevida (p=0,01) e de CD44high/CD24lowSOX2+ no sangue e tumor com status de sobrevida nos pacientes;expressão reduzida de pSTAT3 no sangue de pacientes com invasão perineural e elevados no tecido tumoral no grupo em estádio pT1;alta expressão de TCD3+ no sangue e tecido tumoral de pacientes com tumor ≤3cm;aumento de TCD3+SOX2+ no sangue de pacientes sem invasão perineural e em estádio pT1.Observou-se correlação de CD44highCD24lowpSTAT3+ (r=0,669; p=0,024), de pSTAT3 (r=0,487; p=0,018) e de TCD3+SOX2+ (r=0,404; p=0,029) entre o sangue e o tecido tumoral.

Conclusão:

As moléculas CD44, CD24 e SOX2 foram marcadores de doença avançada, sendo associados ao pior prognóstico no câncer de pênis, porém, p-STAT3 e TCD3+ foram associados a um prognóstico mais favorável neste estudo
ABSTRACT

Introduction:

Penile cancer (CaPe) has a high incidence in some underdeveloped countries. The standard treatment is removal of the primary tumor and inguinal lymphadenectomy in some patients. At the moment, the most important prognostic factor is lymph node disease, but the staging methods currently available are not very accurate and the high morbidity rate of lymphadenectomy has prompted the study of biomarkers that may predict lymph node metastasis, and aid in the selection of patients who need lymphadenectomy. The markers STAT3 and CD44, CD24, SOX2 + are known to be markers of diagnosis and prognosis in other cancers, but there are no such studies on penile cancer.

Aim:

To evaluate the levels of CD44high/ CD24low and TCD3+ cells, and the expression of SOX2 and STAT3 transcription factors in squamous cell carcinoma of the penis.

Methods:

A cross-sectional study was conducted at the Hospital de Cancer de Pernambuco (HCP) and Translational Research Laboratory at the Prof. Fernando Figueira Institute of Integral Medicine (IMIP), from March 2015 to December 2017 of a population of 38 patients with CaPe and controls. Analyses of SOX2, STAT3, CD24 and CD44 were performed on blood and tumor tissue by flow cytometry.

Results:

The median age was 61 years (37-80 years). Most of the patients presented tumor localized in the glans (76.3%), histological type (71.0%), grade 1 (86.8%), without vascular and perineural invasion (86.8% and 68.4% %), without metastases (86.8%). Regarding staging, 55.3% of the patients had pT2 and 34.2% pT1. High levels of CD44highCD24low, CD44highCD24lowpSTAT3+and CD44highCD24low,SOX2+ were found in the patients compared to the controls (p <0.05). Reduced percentage levels of SOX2+ and TCD3+/ SOX2+ leukocytes and high pSTAT3 leukocytes were observed in the patients when compared to healthy controls. There were elevated levels of CD44highCD24low and SOX2+ leukocytes in the group of patients with perineural invasion, tumor size> 3 cm and at pT2 stage (p <0.05). Peripheral blood CD44highCD24low levels were found to be associated with the tumor size(p = 0.04) and survival status (p = 0.01) and CD44highCD24lowSOX2+ levels in the blood and tumor with survival status in patients. Reduced levels of pSTAT3 in the blood of patients with perineural invasion and elevated tumor tissue in the pT1 stage. There were elevated levels of TCD3 + in the blood and tumor tissue of patients with tumors of ≤3cm. Increased TCD3 + SOX2 + was found in the blood of patients without perineural and pT1 stage invasion. CD44highCD24lowpSTAT3 + (r = 0.669; p = 0.024), pSTAT3 (r = 0.487, p = 0.018) and TCD3 + SOX2 + (r = 0.404, p = 0.029) correlations were observed between blood and tumor tissue.

Conclusion:

CD44, CD24 and SOX2 molecules were markers of advanced disease, and were associated with the worst prognosis in penile cancer. However, p-STAT3 and TCD3 + were associated with a more favorable prognosis in this study
Subject(s)
Full text: Available Index: LILACS (Americas) Main subject: Penile Neoplasms / Transcription Factors / T-Lymphocytes / Hyaluronan Receptors / STAT3 Transcription Factor / Flow Cytometry Type of study: Observational study / Prevalence study / Prognostic study / Risk factors Limits: Adult / Aged / Female / Humans / Male Language: Portuguese Year: 2019 Type: Thesis

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Full text: Available Index: LILACS (Americas) Main subject: Penile Neoplasms / Transcription Factors / T-Lymphocytes / Hyaluronan Receptors / STAT3 Transcription Factor / Flow Cytometry Type of study: Observational study / Prevalence study / Prognostic study / Risk factors Limits: Adult / Aged / Female / Humans / Male Language: Portuguese Year: 2019 Type: Thesis