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6 protocols using its g 100x

1

Decellularized Extracellular Matrix Effects on Cardiac Explants

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Hearts harvested from day 1 mice were washed in cold 1 x PBS. Atrial was removed and ventricle was cut to approximately 1mm3 pieces using surgical scissors. Two microliters of adult or fetal dECM were injected into explants using 10μl Hamilton syringes with 23G needles before plating on 48-well plates coated with 1.5mg/ml collagen I (Corning) gel. Explants were incubated at 37°C for 2h to induce dECM polymerization and explant-collagen gel attachment. Explants were cultured in explant culture media [1% fetal bovine serum, 2mM L-glutamine, 1 x insulin-transferrin-selenium (Gibco, ITS-G 100X) in M199] for 6 days with 10μM BrdU labeling for 3 days before fixation. Paraformaldehyde (4%) was used for fixation. In separate experiments, explants were cultured in explant culture media supplemented with 5mM ribose or 0.2mM BAPN for 6 days from plating in combination with dECM treatment conditions. Atomic force microscopy was used to measure the elastic modulus of decellularized explants [13 (link)], [32 (link)].
In order to regulate cytoskeleton polymerization, explants were cultured in explant culture media supplemented with Jasplakinolide (Cayman), Latrunculin A (Cayman), Y27632 (Chemdea), PF573228 (Selleck) for 3 days; no BrdU labeling applied.
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2

Podocyte Differentiation and Stress Assays

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Control and patient-derived iPSC were differentiated into podocytes according to the protocol we developed previously [9 (link)]. From day 13 to day 18, iPSC-derived podocytes were cultured in RPMI 1640 medium (Gibco, Waltham, MA, USA) supplemented with 10% fetal bovine serum (FBS), ITS 1X (insulin–transferrin–selenium; ITS-G, 100X; Gibco), and 50 U/mL penicillin plus 0.05 mg/mL streptomycin (Gibco).
To evaluate cytoskeleton rearrangement, iPSC-derived podocytes at day 13 of diffe-rentiation were exposed to angiotensin II (Ang II, 500 nM, Sigma-Aldrich, St. Louis, MO, USA) for 24 h in DMEM-F12 + GlutaMAX (Gibco) in serum-free conditions.
To analyze susceptibility to apoptosis, at day 13 iPSC-derived podocytes were exposed to the puromycin aminonucleoside (PAN, 100 μg/mL, Sigma-Aldrich) in DMEM-F12 + GlutaMAX supplemented with 1% FBS.
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3

Ovarian Cancer Cell Line Cultivation

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For the purpose of this study two commercially available human ovarian epithelial adenocarcinoma cell lines were used (SKOV-3 and OVCAR-3). Both cell types were acquired from the American Type Culture Collection (ATCC, Manassas, Virginia, USA) and cultivated according to the specification of the supplier in base media supplemented with heat-inactivated fetal calf/bovine serum (FCS, Gibco, Thermo Fisher Scientific, Austria) and maintained in humidified incubators (37°C and 5% CO2). SKOV-3 cells were cultivated in McCoy’s 5a Medium Modified (Gibco, Thermo Fisher Scientific, Austria) with 10% (v/v) FCS and 1% (v/v) penicillin-streptomycin (P/S, Sigma-Aldrich, Austria), and OVCAR-3 cells were cultivated in RPMI-1640 Medium (Gibco, Thermo Fisher Scientific, Austria) supplemented with 20% (v/v) FCS, 1% (v/v) P/S and 1% (w/v) insulin-transferrin-selenium (ITS-G, 100X, Gibco, Thermo Fisher Scientific). Cell number was determined with a MOXI Z Mini Automated Cell Counter with the corresponding MOXI Z Type M Cassettes (ORFLO Technologies, USA) and experiments were performed with cells reaching a confluency of 80%.
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4

Cardiac Explant Culture and Cytoskeleton Modulation

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The cell and explant culture media contain 1U/ml P/S. Primary cardiomyocytes plated with ECM were cultured in DMEM supplemented with 15% fetal bovine serum (FBS) at 37°C overnight. Cells were then cultured in DMEM, followed by culturing in DMEM containing 10μM BrdU. Cells were fixed in 4% paraformaldehyde (PFA).
Cardiac explants were cultured in M199 supplemented with 1% FBS, 1:100 diluted insulin-transferrin-selenium (Gibco, ITS-G 100X), and 2mM L-glutamine [explant culture media] for 3 days [44 (link)]. Explants were then cultured in explant culture media with 10μM BrdU for cell cycle labeling for 3 days. Explants were fixed in 4% PFA. In separate experiments, explants were cultured in explant culture media supplemented with 5mM ribose or 0.2mM BAPN for 6 days from plating in combination with ECM treatment conditions. In order to tune cytoskeleton, explants were cultured in explant culture media supplemented with Jasplakinolide (Cayman), Latrunculin A (Cayman), Y27632 (Chemdea), PF573228 (Selleck) for 3 days; no BrdU labeling applied.
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5

Culturing DolKT1 Cells for Experiments

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DolKT1 cells were cultured in Dulbecco’s modified eagle medium (DMEM) (Cat# 11885084; Gibco, Grand Island, NY) supplemented with 10% FBS (Nichirei Biosciences, Tokyo, Japan), 1% insulin-transferrin-selenium (ITS-G 100X, # 41400045, Thermo Fisher, Waltham, MA), 50 U streptomycin/mL and 50 mg penicillin/mL (Life Technologies, Van Allen Way Carlsbad, CA). The cells were grown at 37 °C in a humidified atmosphere with 5% CO2. We tested for mycoplasma on a regular basis. The cells were passaged at 90% confluency and exposed to different experimental conditions. The culture medium was changed with 1% FBS (if not mentioned separately) for 18 h before the experiments. All experiments were performed between passages 24 and 30.
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6

Cell Line Cultivation and Starvation

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All cell lines were cultured at 37°C with 5% CO2. MDA-MB-231, Huh7, HEK293A cell lines were cultured in DMEM (Life Technologies #11965092) supplemented with 10% FBS. MCF10A were cultured in DMEM/F12 (Life Technologies #11330032) containing 5% horse serum, 20 ng/mL EGF, 0.5 μg/mL hydrocortisone, 10 μg/mL insulin, 100 ng/mL cholera toxin, and 50 μg/mL penicillin/streptomycin (P/S). Primary mouse hepatocytes were cultured in William’s E medium (Life Technologies #12551032) containing 10% FBS and 1% P/S. AML12 cells were cultured in DMEM: F12 medium (ATCC #30–2006) supplemented with 10% FBS, Insulin-Transferrin-Selenium (ITS-G) (100X) (Thermo Fisher Scientific #41400045), and 40 ng/mL dexamethasone. For signaling assays, cells were washed 1x in PBS and placed in starvation media (-FBS) for 2–16 h depending upon cell line.
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