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4 protocols using ezh2 sirna

1

Molecular Mechanism of 3-DZNeP and Cisplatin

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3-DZNeP was purchased from Selleckchem (Houston, TX, USA). Cisplatin was purchased from Sigma (St. Louis, MO, USA). Antibodies to caspase3, E-cadherin, EZH2, H3K27me3, p-JNK, p-ERK1/2, p-p38, histone H3, and tubulin were purchased from Cell Signaling Technology (Danvers, MA, USA). Antibody to NGAL was purchased from R&D systems (Minneapolis, MN, USA). Antibodies to GAPDH, β-actin, horseradish peroxidase-conjugated secondary antibodies, enhanced chemiluminescence (ECL) detection kit, cell counting kit-8 (CCK-8), and DAPI were from Beyotime institute of Biotechnology (Jiangsu, China). Scr and BUN reagent kits were purchased from Nanjing Jiancheng Bioengineering Institute (Nanjing, China). EZH2 siRNA, E-cadherin siRNA and scramble siRNA were purchased from Santa Cruz Biotechnology (Santa Cruz, CA, USA).
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2

EZH2 Inhibition and Modulation in SSc

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DZNep (Cayman Chemicals), an EZH2 inhibitor, was dosed at 0.2–5 μM for fibroblasts and 5 μM for ECs for 48 h, with PBS as a negative control. When indicated, another EZH2 inhibitor, GSK126 (Cayman Chemicals), was dosed at 0.5–10 μM for 72 h in SSc dermal fibroblasts. Cell viability was checked using Trypan blue and was not affected by either EZH2 inhibitor with the dosages used. To evaluate the effect of EZH2 on angiogenesis in ECs, we used 75 nM EZH2 siRNA (Santa Cruz Biotechnology) to transfect ECs for 48 h. Overexpression of EZH2 in ECs was achieved by transfecting 0.33 μg of EZH2 (control vector pCMV6-XL5; Origene) using Lipofectamine 2000 (Invitrogen) in T12.5 flasks. After 5 h, culture media were changed to EGM supplemented with bovine brain extract (Lonza). Matrigel tube formation assay was performed 24 h after transfection. Overexpression of EZH2 was also done in fibroblasts, using 0.1 μg of either control or EZH2 vector in a 12-well plate for 24–72 h. Successful transfection was confirmed by qPCR.
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3

EZH2 Silencing in ESCC Cells

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To inhibit EZH2, 50 nmol/L EZH2 siRNA (Santa cruze) was transfected into ESCC cells using Lipofectamine 2000 reagent according to the manufacturer's instructions. Cells transfected by the transfection agent with no siRNA (Mock) and with scramble‐controlled siRNA (Negative control) were employed as controls. The cells were harvested 48 hours after transfection.
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4

Silencing EZH2 with siRNA

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The EZH2 siRNA was obtained from Santa Cruz Biotechnology; miR-138-5p mimic, inhibitor, and negative control were synthesized by Guangzhou RiboBio. The transfection we had used Lipofectamine 2000 (Invitrogen) according to the corresponding's protocol.
EZH2 siRNA
5′-TTCGAGCTCCTCTGAATCAAA-3′
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