Immunohistochemical evaluation of e-cadherin, Ki-67 and PCNA in canine mammary neoplasias: correlation of prognostic factors and clinical outcome

Pesquisa Veterinária Brasileira

Debora A.p.c. Zuccari²  Marcilia V. Pavam¹  Carolina B. Terzian¹  Rodrigo S. Pereira¹  Camila M. Ruiz¹  Joanna Coelho Andrade¹ 

[1] ,Faculdade de Medicina de São José do Rio Preto Centro Regional de Bioterismo São José do Rio Preto SP ,Brazil

关键词: Canine;    cell proliferation marker;    e-cadherin;    immunohistochemistry;    mammary neoplasm;    Canino;    marcador de proliferação celular;    e-caderina;    imuno-histoquímica;    neoplasma mamário;   

DOI  :  10.1590/S0100-736X2008000400003

来源: SciELO

【 摘 要 】

E-cadherin is a cell-cell adhesion molecule and low e-cadherin expression is related to invasiveness and may indicate a bad prognosis in mammary neoplasms. The expression of cell proliferation markers PCNA and especially Ki-67, has also proved to have a strong prognostic value in this tumor class. The expression of these markers was related to the clinical-pathological characteristics of 73 surgically removed mammary tumors in female dogs by immunohistochemistry. There was no statistical correlation between these markers and death by neoplasm, survival time and disease-free interval. However, the loss of e-cadherin expression and marked Ki-67 expression (p=0.016) were considered statistically significant for the diagnosis (p=0.032). When evaluated as independent factors, there was evidence of the relationship between the loss of e-cadherin expression and high PCNA expression with changes in the body status (divided into obese, normal and cachectic) of female dogs (p=0.030); there was also evidence of the relationship between pseudopregnancy and e-cadherin alone (p=0.021) and for ulceration and PCNA alone (p=0.035). The significant correlation between the markers expression and these well known prognostic factors used individually or in combination suggests their prognostic value in canine mammary tumors.

【 授权许可】

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