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Saccharomyces cerevisiae and Candida albicans Stimulate Cytokine Secretion from Human Neutrophil-Like HL-60 Cells Differentiated with Retinoic Acid or Dimethylsulfoxide
We investigated whether non-pathogenic Saccharomyces cerevisiae and human commensal opportunistic pathogenic Candida albicans stimulate cytokine responses of human neutrophil-like HL-60 cells pre-treated with either 1 μM retinoic acid or 1.25% dimethyl sulfoxide (DMSO). Intact and heat-killed S. cer...
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Published in: | Bioscience, biotechnology, and biochemistry biotechnology, and biochemistry, 2009-12, Vol.73 (12), p.2600-2608 |
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Main Authors: | , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | We investigated whether non-pathogenic Saccharomyces cerevisiae and human commensal opportunistic pathogenic Candida albicans stimulate cytokine responses of human neutrophil-like HL-60 cells pre-treated with either 1 μM retinoic acid or 1.25% dimethyl sulfoxide (DMSO). Intact and heat-killed S. cerevisiae enhanced secretion of interleukin (IL)-1β, IL-6, IL-8, IL-12, IL-18, MCP-1/CCL2 and TNF-α from retinoic acid-treated HL-60 cells, accompanied by alterations in mRNA expression of the cytokines. Heat-killed C. albicans promoted secretion of IL-6, IL-8, IL-12, MCP-1 and TNF-α, while intact C. albicans slightly enhanced secretion of IL-1β, IL-8 and IL-18. In response to yeast stimuli, retinoic acid-treated HL-60 cells generally secreted cytokines more strongly than DMSO-treated HL-60 cells. Gene expression levels of Toll-like receptor (TLR)1, TLR2, TLR4, TLR6 and dectin-1 in HL-60 cells were additionally affected by retinoic acid or DMSO and by co-culturing with S. cerevisiae or C. albicans. Our results suggest that both intact and heat-killed S. cerevisiae and C. albicans induce cytokine responses of neutrophils in the intestine, and stimulate host immune function. |
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ISSN: | 0916-8451 1347-6947 |
DOI: | 10.1271/bbb.90410 |