Infrared Spectra of Human Breast Tumor Tissue and Experimental Animal Tumors
Journal of Applied Spectroscopy(2015)
Abstract
We have used Fourier transform IR spectroscopy methods to conduct comparative studies of human breast tumors and sarcoma 180 tumor grafted into mice. The IR spectral parameters used to identify tumor tissue in mice with the sarcoma 180 strain proved to be identical to the parameters for human breast tissue in cancer. In the presence of a malignant tumor in humans, the most intense C=O vibrational bands in the protein molecules are observed in the interval 1710–1680 cm –1 . For a benign tumor, in the IR spectra of breast tissue the intense bands are located in the interval 1670–1650 cm –1 . We spectroscopically monitored the diagnosis and the chemotherapy process using the model of sarcoma 180 in mice. As the therapeutic drugs, we used synthesized coordination compounds based on palladium complexes with diphosphonic acid derivatives. We demonstrate the promising potential of palladium complexes with zoledronic acid as an effective cytostatic. In therapy using a palladium complex with zoledronic acid, the effect of tumor growth inhibition is accompanied by a change in its spectral characteristics. The parameters of the IR spectra for tumor tissue after treatment are close to those of the IR spectra for healthy tissue.
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Key words
infrared spectrum,breast,tumor,palladium complexes,chemotherapy
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