Apoptosis as a prognostic marker in canine mammary tumors by TUNEL



Document title: Apoptosis as a prognostic marker in canine mammary tumors by TUNEL
Journal: Brazilian journal of veterinary research and animal science
Database: PERIÓDICA
System number: 000291684
ISSN: 1413-9596
Authors: 1
1

Institutions: 1Centro Universitario de Rio Preto, Faculdade de Medicina Veterinaria, Sao Jose do Rio Preto, Sao Paulo.
Year:
Volumen: 40
Number: 5
Pages: 359-365
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Caso clínico
English abstract Apoptosis plays an important role in oncogenesis determining tumor growth and aggressiveness. The aim of this study was to examine the relationship between apoptosis, diagnosis and prognosis in canine mammary tumors. Thirty bitches were submitted to tumor extirpation and a method of labeling apoptotic cells, that labels DNA fragments, by terminal deoxynucleotidyl-tranferase (TdT) mediated by 5' deoxy-uridine-triphosphate (dUTP) nick and labeling (TUNEL) was used. The apoptotic cells were counted in ten high power fields (10HPF). Statistical results showed that when there are more than 30 apoptotic cells/10HPF the prognosis is worse (p= 0,0005). Thus suggesting that apoptosis can be used as a prognostic marker in canine breast tumors
Portuguese abstract A apoptose, como evento celular, tem uma participação importante na tumorigênese, determinando o crescimento tumoral e sua agressividade. O presente estudo, teve como objetivo, examinar a relação entre a apoptose, o diagnóstico histopatológico e o prognóstico na neoplasia mamária canina. Trinta cadelas foram submetidas a exérese tumoral e o fragmento tumoral submetido ao método de marcação das células apoptóticas, que marca fragmentos de DNA da célula em apoptose, conhecido como desoxinucleotídeo terminal transferase (TdT) mediado pela 5' desoxiuridina trifosfato (dUTP) ou TUNEL. As células em apoptose foram contadas em 10 campos de maior aumento (10HPF) sendo que os resultados estatísticos demonstraram uma correlação positiva entre a apoptose e o prognóstico ruim (p= 0,0005). Dessa forma, a apoptose pode ser considerada um marcador prognóstico nas neoplasias mamárias caninas
Disciplines: Medicina veterinaria y zootecnia,
Biología
Keyword: Medicina veterinaria,
Anatomía e histología,
Biología celular,
Apoptosis,
Prognóstico,
Tumores,
Perros,
Cirugía
Keyword: Veterinary medicine and animal husbandry,
Biology,
Companion animals,
Veterinary medicine,
Anatomy and histology,
Cell biology,
Apoptosis,
Prognosis,
Mammary tumors,
Dogs,
Surgery
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