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3 protocols using hydrocortisone h0888

1

Immortalized Endothelial Cells Response to LPS

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The immortalized mouse cardiac endothelial cell line (MMEC) was cultured in DMEM supplemented with 5% FBS (GIBCO) on collagen. Cells were incubated overnight in 0% FBS and stimulated with 300 ng/ml LPS for 4 h with or without preincubation for 60 min with a Map3k8 inhibitor (C1, 10 μM) that was generously provided by Sir Philip Cohen, and G-CSF levels in the cell supernatant were determined. The human endothelial cell line HMEC-1 was cultured in MCDB131 medium (Corning) supplemented with 10% FBS (GIBCO), 10 ng/ml EGF (E4127, Sigma-Aldrich), 1 µg/ml hydrocortisone (H0888, Sigma-Aldrich), 10 mM glutamine (G7513, Sigma-Aldrich), 100 U/ml penicillin (Gibco, Thermo Fisher Scientific) and 100 µg/ml streptomycin (Gibco, Thermo Fisher Scientific). Cells were incubated overnight in 0.1% FBS and stimulated with 300 ng/ml LPS for 6 h with or without preincubation for 60 min with the Map3k8 inhibitor. The cells were then harvested and subjected to quantitative reverse-transcriptase PCR analysis.
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2

Isogenic Cell Lines for Cancer Research

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MCF10A, a non-tumorigenic breast cell line (ATCC, CRL-10317) and MCF10A CDH1−/− cells (CLLS1042, Sigma-Aldrich, St Louis, MO, USA) were cultured in DMEM/F12/Glutamax (10565042, Thermo Fisher Scientific, Waltham, MA, USA) with 5% horse serum (16050, Thermo Fisher Scientific, Waltham, MA, USA), 10μg/μL neutral insulin (797139, Dunedin hospital, Dunedin, New Zealand), 500 ng/mL hydrocortisone (H0888, Sigma-Aldrich, St Louis, MO, USA), 100 ng/mL cholera toxin (C8052, Sigma-Aldrich, St Louis, MO, USA) and 20 ng/mL human epidermal growth factor (E9644, Sigma-Aldrich, St Louis, MO, USA). A CDH1-null strain of the gastric cancer cell line NCI-N87 (ATCC, CRL-5822) was generated using CRISPR-Cas9 [9 (link)]. Briefly, the sequence 5′-ATTCACATCCAGCACATCCA-3′ was used to target exon 10 of CDH1 and induce a single base frameshift, followed by a stop codon. Isogenic NCI-N87 cells were cultured in DMEM/F12/Glutamax with 10% fetal bovine serum (10091148, Thermo Fisher Scientific, Waltham, MA, USA). Both cell lines were grown at 37 °C with 5% CO2.
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3

Hematopoietic Support by iPSC-Derived MSCs

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MSC-like cells generated from hiPSC were seeded at 30,000 cells/cm2 in 96-well plate (n = 5) onto 0.1% gelatine-coated wells in MSC medium. At 100% confluence, the cells were irradiated at 10 Gy for 10 min. The same day, CD34+ hematopoietic progenitor cells were isolated from cord blood by magnetic labelling using the Indirect CD34 MicroBead Kit (130–046–701; Miltenyi) on MS MACS separation columns (Miltenyi) following manufacturer's instructions, and seeded at 5000 cells/cm2 on top of MSC-like cells in myelocult H5100 (05,150; STEMCELL Technologies) supplemented with 10−6 hydrocortisone (H0888; Sigma-Aldrich). Co-cultures were maintained for 5 weeks with medium changes every other day and then evaluated by optical microscopy analysis on a Nikon Eclipse Ti microscope (Nikon) for the formation of typical cobblestone areas and by flow cytometry using CD45-APC—C7 (561,863; BD; RRID: AB_10,897,014) and CD34-FITC antibodies (555,821; BD; RRID: AB_396,150) to assess support of hematopoietic cells, following the protocols already described above.
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