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3 protocols using zymosan tlrl zyn

1

Immune Response Modulation Protocols

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Heat-killed C. albicans (HKCA; tlrl-hkca), zymosan (tlrl-zyn) and Trehalose-6,6-dibehenate (TDB; tlrl-tdb) were purchased from Invivogen. Mannan (M3640) were purchased from Sigma-Aldrich. The HDAC11 inhibitors FT895 (HY-112285) and SIS17 (HY-128918), SYK inhibitor R406 (HY-12067), NF-κB inhibitor JSH-23 (HY-13982) and STAT3 inhibitor STAT3-IN-1 (HY-100753) were purchased from MedChemExpress. iNOS inhibitors S-methylisothiourea hemisulfate salt (SMT; S0008) and L-NMMA (S0011) were purchased from Beyotime Biotechnology. The SYK inhibitor R406 (S2194) was purchased from Selleck. The antibodies used in this study shown in Supplementary Table 1.
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2

Zymosan and Curdlan Induced Cytokine Secretion

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Cells were seeded in 12 well plates at a density of 7.5×105 (SW480) cells/well. After overnight incubation, the medium was replaced with fresh medium and Zymosan (tlrl-zyn, InvivoGen, San Diego, CA) or Curdlan (C7821 Sigma-Aldrich, St. Louis, MO). To avoid possible contaminating with endotoxin, we used endotoxin-free (<0.001 EU) Zymosan or Curdlan. Where indicated the SYK inhibitors [3-(1-methyl-1H-indol-3-yl-methylene)-2-oxo-2,3-dihydro-1H-indole-5-sulfonamide], (*574711, CAS 622387–85-3 Calbiochem, Merck-Millipore, Darmstadt, Germany) and R406 (Invivogen), were added 1 hour prior to the addition of Zymosan. All treatments were performed in duplicates/triplicate. After 20 hours, supernatants were collected, and maintained at −70ºC until analysis. IL-8, CCL2, CXCL1 and GM-CSF concentrations were determined using ELISA (DY208, DY271, DY215 and DY275 respectively from R&D systems) according to the manufacturer’s instructions.
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3

Zymosan and Curdlan Induced Cytokine Secretion

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Cells were seeded in 12 well plates at a density of 7.5×105 (SW480) cells/well. After overnight incubation, the medium was replaced with fresh medium and Zymosan (tlrl-zyn, InvivoGen, San Diego, CA) or Curdlan (C7821 Sigma-Aldrich, St. Louis, MO). To avoid possible contaminating with endotoxin, we used endotoxin-free (<0.001 EU) Zymosan or Curdlan. Where indicated the SYK inhibitors [3-(1-methyl-1H-indol-3-yl-methylene)-2-oxo-2,3-dihydro-1H-indole-5-sulfonamide], (*574711, CAS 622387–85-3 Calbiochem, Merck-Millipore, Darmstadt, Germany) and R406 (Invivogen), were added 1 hour prior to the addition of Zymosan. All treatments were performed in duplicates/triplicate. After 20 hours, supernatants were collected, and maintained at −70ºC until analysis. IL-8, CCL2, CXCL1 and GM-CSF concentrations were determined using ELISA (DY208, DY271, DY215 and DY275 respectively from R&D systems) according to the manufacturer’s instructions.
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