Adherence and Cytotoxicity of Candida spp. to HaCaT and A549 cells

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  • Ichikawa Tomoe
    Department of Infection Control Science, Meiji Pharmaceutical University
  • Kutsumi Yuri
    Department of Infection Control Science, Meiji Pharmaceutical University
  • Sadanaga Jumpei
    Department of Infection Control Science, Meiji Pharmaceutical University
  • Ishikawa Moeko
    Department of Infection Control Science, Meiji Pharmaceutical University
  • Sugita Daisuke
    Department of Infection Control Science, Meiji Pharmaceutical University
  • Ikeda Reiko
    Meiji Pharmaceutical University

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タイトル別名
  • Adherence and Cytotoxicity of <i>Candida</i> spp. to HaCaT and A549 cells

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Candida species are opportunistic fungal pathogens that cause superficial or invasive infections. Recently, the incidence of infection by non-Candida albicans species, especially Candida glabrata, has increased. In this study, we analyzed the adhesion and cytotoxicity of various Candida spp. that are part of the normal human microbiota. C. albicans adheres well to cell culture plates and to cultured cells. C. glabrata selectively adheres to epithelial cells rather than to cell culture plates. Candida parapsilosis insufficiently adheres to confluent monolayers of human lung epithelial A549 and keratinocyte HaCaT cells. We then analyzed the cytotoxicity of C. albicans and C. glabrata, which adhered well to epithelial cells. C. glabrata has been found to cause more damage to A549 cells than to HaCaT cells, suggesting that resident Candida spp. have distinct cytotoxic effects in different tissues. It is important to clarify the properties of Candida spp. as there is evidence that normal microbiota can cause infections. Our data suggest that it is necessary to use appropriate cell lines for characterizing the adherence and cytotoxicity of Candida spp.

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