PMID: 18712085Aug 21, 2008Paper

Changes in amino acid patterns of blood plasma in tumor patients treated with anticancer drug NSC-631570: possible approaches to cancer diagnostics

Biomedit︠s︡inskai︠a︡ khimii︠a︡
A A Glazev, L I Nefedov

Abstract

In our early experimental (with W-256, SM-1 and PC-1 tumors) and clinical (breast, bladder and prostate cancers) studies the use of the anticancer drug NSC-631570 was proven to be safe and highly effective, inhibiting protein synthesis in cancer cells, selectively accumulating in cancer tissue after a single intravenous administration and controlling cancer-induced metabolic imbalance. This drug inhibits metabolic processes in the tumor and causes metabolic disorders in cancer cells. Moreover, NSC-631570 induced the changes in certain amino acids concentrations in biological fluids and tumor tissue in animal models and cancer patients. These changes cannot be explained by metabolic amino acid disorders in cancer known so far. In this study the effects of NSC-631570 on blood plasma amino acids has been investigated. Blood was sampled from 10 healthy donors and 29 patients with different types of cancer (stomach, rectal, lung, breast, bladder, prostate, and leukemia). Comparison of NSC-531570 effects in plasma of healthy donors and cancer patients has shown, that this compoumd: 1) affects amino acids with positively charged (His, Arg) or not charged (Tyr, Thr, Gln) R-groups; 2) decreases concentration of His and increase the conc...Continue Reading

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