 |
|
|
|
Year 2013 - Volume 33, Number 4
|
|
IGF-1 and SCF protein expression in cutaneous mast cell tumors in dogs and relation to prognostic factors and mammalian target of rapamycin (m-TOR), 33(4):549-556
|
ABSTRAC.- Ferioli R.B., Torres Neto R., Costa S.S, Alessi A.C., Rocha R.M. & Amorim R.L. 2013. [IGF-1 and SCF protein expression in cutaneous mast cell tumors in dogs and relation to prognostic factors and mammalian target of rapamycin (m-TOR).] Relação da expressão de fatores de crescimento cellular (IGF-1) e (SCF) com fatores prognósticos e o alvo da rapamicina em mamíferos (m-TOR) em mastocitomas cutâneos caninos. Pesquisa Veterinária Brasileira 33(4):549-556. Serviço de Patologia Veterinária, Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual Paulista Júlio de Mesquita Filho, Campus de Botucatu, Distrito de Rubião Jr s/n, Botucatu, SP 18618-970, Brazil. E-mail: raquel.ferioli@fmvz.unesp.br
Cutaneous mast cell tumor (MCT) is one of the most common neoplasms in the skin of dogs and express variable biological behavior. Among the MTC aspects studied, histological classification, proliferative index and protein expression of c-KIT show the most defined connection with the tumor prognostic. The aim of this study was to evaluate the protein expression of insulin-like growth factor type 1 (IGF-1), steam cell factor (SCF) and theit relationship with tyrosine kinase receptor (c-KIT), mammalian target of rapamycin (m-TOR), histological classification (KI-67), proliferative and mitotic index and epidemiological data in MTCs. In this study 133 MTC samples from 133 animals were used, arranged in tissue microarray (TMA) slides. The TMA was used for evaluation the proteins. An association was observed between SCF and histological grade proposed in 2011, mitotic index, cell proliferation, IGF-1, lesion site, age of the animals, and immunohistochemical pattern c-KIT receptor. The dependence relationship was also observed between IGF-1 and animal size, mitotic index, m-TOR and c-KIT. The SCF protein expression was related to canine MTCs aggressiveness, since it is more frequent in MCTs with c-KIT cytoplasmic. The relationship between the expression of IGF-1, SCF, c-KIT e m-TOR can be associated with the integration of its actions ways. The IGF-1 expression is associated with large dog breeds MTCs. |
| |
|
|
| |
|
|
