چکیده انگلیسی:
Backgrounds: In breast cancer, blocking of Ras signaling and inhibition of H-Ras is quite promising. H-Ras may become a target for farnesyl transferase inhibitors, and in combination with other immunohistochemical factors it will contribute to the progression of a breast tumor. Purpose: The aim of this study was to evaluate the effectiveness of neoadjuvant therapy for breast cancer with the inclusion of farnesyl transferase inhibitor, arglabin interfering with the expression and concentration of H-Ras oncoproteins. Methods: Depending on the presence of H-Ras oncoproteins after Western-blot hybridization, the patients were divided a negative and positive expression of H-Ras groups. Results: Correlation analysis of methods used for determining the expression ability and concentration of H-Ras oncoproteins (immunohistochemistry and Western-blot analysis) demonstrated substantial statistical relationship Rs=0.71, p=0.03. The H-Ras oncoproteins were absent in patients receiving either “Arglabin” or standard AC regimen. However, in the AC + Arglabin group, there was a varying degrees of positive concentration of H-Ras oncoproteins (Kruskal-Wallis=6.92; p=0.03). Conclusion: These results indicate that Arglabin attenuates H-Ras oncoproteins expression which is a promising therapeutic target for breast cancer.
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