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5 protocols using isocove s modified dulbecco s medium

1

Cerebellar Differentiation of Mouse ES Cells

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ES cells were dissociated in 0.25% trypsin-EDTA (Sigma-Aldrich) and reaggregated in 96-well low-cell-adhesion plates (Lipidure coat, NOF, Japan) at seeding densities of 3 × 103 and 3 × 104 cells per 150 µl of medium to induce cerebellar differentiation of mouse ES cells in serum-free culture of embryoid-body like aggregates (SFEBq)20 (link). The differentiation medium contained: Isocove’s modified Dulbecco’s medium (Gibco)/Ham’s F12 (Gibco) 1:1, chemically defined lipid concentrate (1% of total volume, Sigma-Aldrich), penicillin/streptomycin (Sigma-Aldrich), monothioglycerol (450 µM, Sigma-Aldrich), human apo-transferrin (15 µg/ml, Sigma-Aldrich), insulin (7 µg/ml, Sigma-Aldrich) and crystallization-purified BSA (5 mg/ml, Sigma-Aldrich). In addition, 4 × 106 ES cells28 (link) were seeded per Petri dish (Greiner Bio-one) in differentiation medium.
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2

Cell Line Maintenance Protocol

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All lymphoma cell lines were maintained in Isocove’s Modified Dulbecco’s Medium (IMDM) (Gibco, USA) supplemented with 10% fetal bovine serum and 2 mM l-glutamine. 293T cells and HeLa cells were maintained in Dulbecco’s modified Eagle’s medium (DMEM) (Gibco, USA) containing 10% fetal bovine serum.
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3

Modulating Keloid Tissue Explants

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Keloid tissues were obtained from active-stage keloid patients (n = 4). Keloid tissue explants were prepared by dissecting keloid central dermal tissue into 2-mm diameter pieces with sterile 21-gauge needles. The explants were plated onto HydroCell® 24 multi-well plates (Nunc, Rochester, NY) after which they were cultured for 4 hr in Isocove’s modified Dulbecco’s medium (GIBCO) supplemented with 5% FBS, 10 mM insulin (Sigma) and 1 mM hydrocortisone (Sigma). For histological analysis, dEl-k35/LacZ or dEl-k35/sLRP6E1E2 at 1 × 1010 VP or 10 mM of commercially available Wnt inhibitor, JW 55 (Axon Medchem, Groningen, Netherland), were added into the plates containing keloid tissue explants, and incubated at 37 °C in 5% CO2 incubator for 3 or 5 days.
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4

Keloid Spheroid Transduction with Adenoviral Vectors

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Keloid tissues were obtained from active-stage keloid patients (n = 5). Keloid spheroids were prepared by dissecting keloid central dermal tissue into 2-mm diameter pieces with sterile 21-gauge needles. Explants were plated onto HydroCell® 24 Multi-well plates (Nunc, Rochester, NY) after which they were cultured for 4 h in IMDM (Isocove’s modified Dulbecco’s medium, Gibco BRL) supplemented with 5% fetal bovine serum, 10 mM l−1 insulin and 1 mM l−1 hydrocortisone. Each of the Ads (dE1-RGD/GFP/shMot and dE1-RGD/GFP/scramble) at 1 × 1010 VP were added into the plates containing keloid spheroid, and incubated at 37 °C in 5% CO2 incubator for 3 days. The transduced keloid spheroids were then fixed with 10% formalin, paraffin-embedded, and cut into 5-μm-thick sections.
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5

Evaluating Caudatin's Effects on HMC-1 Cells

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HMC-1 was maintained in standard conditions using Isocove’s modified Dulbecco’s medium (GIBCO, Grand Island, NY, USA) containing antibiotics (100 units/ml penicillin/100 μg/ml streptomycin) and 10% heat-inactivated fetal bovine serum (GIBCO) in a cell incubator (at 37 °C with 5% CO2). Cell was checked for mycoplasma contamination using Mycoplasma detection Kit (iNtRON Biotech, Sungnam, Korea). HMC-1 (3 × 105/well) was treated with caudatin (ChemFace, Wuhan, China) for 1 h before stimulation with PMACI. According to a prior study (Qiu et al., 2021 (link)), caudatin at concentrations of 0.5, 5, and 50 μM was used to study concentration-dependent effects. An evaluation of cell viability was attained by the MTT (Sigma Chemical Co., St. Louis, MO, USA) assay where a tetrazolium reagent is reduced to insoluble purple formazan crystals by mitochondria of viable cells.
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