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A Study of the Cytotoxic Effect of Microcapsules and Their Constituent Polymers on Macrophages and Tumor Cells

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We studied the effect of different concentrations of polyelectrolytes poly(allylamine hydrochloride) (PAH) and polystyrene sulfonate (PSS) as well as the effects of microcapsules coated with these polymers on survival of Ehrlich ascites carcinoma cells and mouse peritoneal macrophages and on ROS production by phagocytes. PAH reduced viability of Ehrlich ascites carcinoma in a concentration-dependent manner (LD50=12-15 μg/ml). This effect was presumably determined by its ability to bind phosphates, thereby depleting the culture medium. At the same time, PAH did not affect the viability of macrophages. PSS produced no cytotoxic effect on the examined cells. Polyelectrolyte capsules with the shell architectonics (PAH/PSS)3 and (PAH/PSS)3PAH in the examined concentration range had no effect on the viability of macrophages and tumor cells. PAH microcapsules with positively charged surface much more rapidly and more intensively activated macrophages. The chemiluminescence response directly depended on the amount of capsules in the solution.

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Correspondence to S. A. Tikhonenko.

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Translated from Byulleten’ Eksperimental’noi Biologii i Meditsiny, Vol. 166, No. 7, pp. 77-83, July, 2018

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Naumov, A.A., Dubrovskii, A.V., Musin, E.V. et al. A Study of the Cytotoxic Effect of Microcapsules and Their Constituent Polymers on Macrophages and Tumor Cells. Bull Exp Biol Med 166, 69–74 (2018).

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