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Expression of epidermal growth factor receptor (EGFR) in cholangiocarcinomas: predictive factors and survival / Expressão do receptor do fator de crescimento epitelial (EGFR) em colangiocarcinomas: fatores preditivos e sobrevida
GOMES, RODRIGO VIEIRA; RODRIGUES, MICHELE ÂNGELA; RODRIGUES, JOÃO BERNARDO SANCIO ROCHA; VIDIGAL, PAULA TEIXEIRA; DAMASCENO, KARINE ARAÚJO; LIMA, HENRIQUE ARAÚJO; GOMES, DAWIDSON ASSIS; MACHADO, CARLA JORGE; RESENDE, VIVIAN.
Affiliation
  • GOMES, RODRIGO VIEIRA; Federal University of Minas Gerais. Faculty of Medicine. Surgery Department. Belo Horizonte. BR
  • RODRIGUES, MICHELE ÂNGELA; Federal University of Minas Gerais. Institute of Biological Sciences. Belo Horizonte. BR
  • RODRIGUES, JOÃO BERNARDO SANCIO ROCHA; Federal University of Minas Gerais. Faculty of Medicine. Surgery Department. Belo Horizonte. BR
  • VIDIGAL, PAULA TEIXEIRA; Federal University of Minas Gerais. Faculty of Medicine, Pathological Anatomy and Legal Medicine. Belo Horizonte. BR
  • DAMASCENO, KARINE ARAÚJO; Federal University of Minas Gerais. Institute of Biological Sciences. Belo Horizonte. BR
  • LIMA, HENRIQUE ARAÚJO; Federal University of Minas Gerais. Faculty of Medicine. Surgery Department. Belo Horizonte. BR
  • GOMES, DAWIDSON ASSIS; Federal University of Minas Gerais. Institute of Biological Sciences, Biochemistry and Immunology. Belo Horizonte. BR
  • MACHADO, CARLA JORGE; Federal University of Minas Gerais. Faculty of Medicine, Preventive and Social Medicine. Belo Horizonte. BR
  • RESENDE, VIVIAN; Federal University of Minas Gerais. Faculty of Medicine. Surgery Department. Belo Horizonte. BR
Rev. Col. Bras. Cir ; 45(3): e1826, 2018. tab, graf
Article in English | LILACS | ID: biblio-956562
Responsible library: BR1.1
ABSTRACT
ABSTRACT

Objective:

to evaluate the expression of the epithelial growth factor receptor (EGFR) by immunohistochemistry, and to verify its association with prognostic factors and survival of patients operated by cholangiocarcinoma.

Methods:

we verified the immunohistochemical expression of EGFR in 35 surgical specimens of cholangiocarcinoma (CCA). We obtained survival curves with the Kaplan-Meier method.

Results:

we found significant EGFR expression in ten (28.6%) of the 35 CCAs, eight with score 3 and two with score 2. Advanced stages (III and IV) presented higher EGFR expression (p=0.07). The clinical characteristics that were most associated with positive EGFR expression were female gender (p=0.06) and absence of comorbidities (p=0.06). Overall survival at 12, 24, 36 and 48 months was 100%, 82.5%, 59% and 44.2%, respectively. The survival of EGFR positive patients at 12, 24, 36 and 48 months was 100%, 75%, 50% and 0%, whereas for negative EGFR patients it was 100%, 87.5%, 65.6% and 65.6%, respectively.

Conclusion:

EGFR expression occurred in 28.6% of the cases studied and was associated with lower survival.
RESUMO
RESUMO

Objetivo:

avaliar a expressão do receptor do fator de crescimento epitelial (EGFR) por meio de imuno-histoquímica, e verificar sua associação com fatores prognósticos e com a sobrevida dos pacientes operados por colangiocarcinoma.

Métodos:

a expressão imuno-histoquímica de EGFR foi verificada em 35 peças cirúrgicas de colangiocarcinomas (CCA). Curvas de sobrevida foram obtidas pelo método de Kaplan-Meier.

Resultados:

expressão significativa de EGFR foi encontrada em dez (28,6%) de 35 CCA, oito com escore 3 e dois com escore 2. Estágios avançados (III e IV) apresentaram maior expressão de EGFR (p=0,07). As características clínicas que mais estiveram associadas com a expressão positiva de EGFR foram o sexo feminino (p=0,06) e ausência de comorbidades (p=0,06). A sobrevida global aos 12, 24, 36 e 48 meses foi de 100%, 82,5%, 59% e 44,2%, respectivamente. A sobrevida de pacientes EGFR positivos aos 12, 24, 36 e 48 meses foi de 100%, 75%, 50% e 0%, enquanto que para EGFR negativos foi de 100%, 87,5%, 65,6% e 65,6%, respectivamente.

Conclusão:

a expressão do EGFR ocorreu em 28,6% dos casos estudados e esteve associada a menor sobrevida.
Subject(s)


Full text: Available Collection: International databases Database: LILACS Main subject: Bile Duct Neoplasms / Cholangiocarcinoma / ErbB Receptors Type of study: Prognostic study / Risk factors Limits: Adult / Aged / Aged, 80 and over / Female / Humans / Male Language: English Journal: Rev. Col. Bras. Cir Journal subject: CIRURGIA GERAL Year: 2018 Document type: Article Affiliation country: Brazil Institution/Affiliation country: Federal University of Minas Gerais/BR

Full text: Available Collection: International databases Database: LILACS Main subject: Bile Duct Neoplasms / Cholangiocarcinoma / ErbB Receptors Type of study: Prognostic study / Risk factors Limits: Adult / Aged / Aged, 80 and over / Female / Humans / Male Language: English Journal: Rev. Col. Bras. Cir Journal subject: CIRURGIA GERAL Year: 2018 Document type: Article Affiliation country: Brazil Institution/Affiliation country: Federal University of Minas Gerais/BR
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