Evaluation of the expression of matrix metalloproteinase 9 and neutrophil gelatinase associated lipocalin in serum, urine and tumoral tissues of female dogs suffering from mammary gland tumors

Abstract

In human medicine, it has been shown recently that the level of expression of matrix metalloproteinase-9 (MMP-9) and neutrophil gelatinase-associated lipocalin (NGAL) in serum, urine, and breast tissue were significantly increased in patients with breast cancer and correlated to several prognostic factors. In the first part, the author presents the MMP-9 and NGAL as a synthesis of current knowledge on their ability to serve as biomarkers of breast cancer in women. In the second, the author presents the production of canine MMP9 and NGAL recombinant proteins, the production of polyclonal antibodies, and their use in various techniques (ELISA, western blot, immunohistochemistry) to assess the level of expression of these proteins in the blood, urine and breast tissue of dogs suffering from mammary gland tumors and demonstrate a positive correlation between these proteins and the presence of a tumor disease of the mammary gland.