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Expression of inflammation-mediated cluster of genes as a new marker of canine mammary malignancy |
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| Authors: | K M Paw?owski A Homa M Bulkowska K Majchrzak T Motyl M Król |
| Institution: | 1. Department of Physiological Sciences, Faculty of Veterinary Medicine, Warsaw University of Life Sciences—WULS, Nowoursynowska 159, 02-776, Warsaw, Poland 2. Department of Large Animal Diseases with Clinic, Faculty of Veterinary Medicine, Warsaw University of Life Sciences—WULS, Nowoursynowska 100, 02-797, Warsaw, Poland 3. Department of Animal Environment Biology, Faculty of Animal Sciences, Warsaw University of Life Sciences—WULS, Ciszewskiego 8, 02-786, Warsaw, Poland |
| Abstract: | Because canine mammary tumours constitute a serious clinical problem and there are no good prognostic markers (only histopathological variables are used), the aim of the presented study was to find new malignancy markers as well as to identify intracellular pathways and biological processes characteristic for canine mammary malignancy. We compared gene expression of the most malignant mammary tumours (poorly differentiated cancers of the 3rd grade of malignancy) with less malignant tumours (well differentiated cancers of the 1st grade of malignancy). The results of our study indicated that in dogs the number of tumour-infiltrating myeloid cells or expression of myeloid-specific antigens by cancer cells is related to the cancer progression and may constitute a new marker of malignancy, however further studies in this field are required. |
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