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Studies on cytotoxicity of man-made mineral fiber to alveolar macrophage

, : Studies on cytotoxicity of man-made mineral fiber to alveolar macrophage. Zhonghua Yu Fang Yi Xue Za Zhi 32(6): 327-329

To compare the difference in cytotoxicity to human alveolar macrophage caused by ten kinds of man-made mineral fiber. Ten kinds of man-made mineral fiber prepared by Japan Fibrous Materials Research Association (JFM) were used with alveolar macrophage extracted from guinea pigs in vitro as the target cells. Changes in the production of O2- and H2O2, levels of glutathione and cellular free calcium ion (Ca2+) in alveolar macrophage were determined. Most of the 10 kinds of JFM fiber could cause increased production of O2- and H2O2, reduction of levels of glutathione and increase of cellular free calcium ion (Ca2+) in alveolar macrophage, to a extent less than that caused by chrysotile. In general, the cytotoxicity of JFM fiber was less than that of chrysotile. Although these mineral fiber could be used as substitutes for asbestos, they still could cause certain harm to human bodies.


PMID: 10374577

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