We studied the response of the extracellular matrix of the lungs and liver in mice with BCGinduced granulomatosis (3 months) after inhalation and intraperitoneal administration of liposome-encapsulated dextrazide (LEDZ): a conjugate of oxidized dextran (40 kDa) and isonicotinic acid hydrazide (INH). LEDZ inhalation proved to be more effective in reducing fibrosis severity, both in the lungs and liver. However, the mechanisms of the antifibrotic effect were different: increased degradation and reduced collagen synthesis in the lungs and reduced collagen synthesis and collagen degradation in the liver. This suggest that drug administration routes and delivery to the target organs are crucially important in the therapy of tuberculosis. The antifibrotic effect depended on LEDZ administration route and was more potent after LEDZ inhalation.
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Translated from Byulleten’ Eksperimental’noi Biologii i Meditsiny, Vol. 169, No. 1, pp. 78-83, January, 2020
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Kim, L.B., Putyatina, A.N., Russkikh, G.S. et al. Antifibrotics Effect of Liposome-Encapsulated Composition of Oxidized Dextran and Isonicotinic Acid Hydrazide in Mice with BCG-Induced Granulomatosis Depends on Administration Route. Bull Exp Biol Med 169, 71–76 (2020). https://doi.org/10.1007/s10517-020-04827-4
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DOI: https://doi.org/10.1007/s10517-020-04827-4