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4 protocols using ang 2

1

Angiotensin II Signaling Pathway Protocol

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LIQ (CAS No. 551-15-5; purity ≥ 98%), Ang II was sourced from Shanghai YuanYe Biotechnology (Shanghai, China). Primary antibodies including anti-TAK1, anti-phos-JNK1/2, and anti-JNK1/2 were purchased from CST (Boston, USA). Primary antibodies including anti-ATE1 and secondary antibodies were purchased from Abcam (Cambridge, England); anti-phos-TAK1 was purchased from Sabbiotech (Maryland, USA). CCK-8 was purchased from Beyotime Biotechnology (Shanghai, China). The Phalloidin Staining Kit was purchased from Solarbio (Beijing, China). The RT-qPCR kit, Trizol, and the SYBR Premix Ex Tap kit were purchased from Takara (Japan). Real-time PCR primers were obtained from Sangon Biotech (Shanghai, China). All other chemicals used were sourced from Thermo Fisher Scientific (Pittsburgh, PA, USA).
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2

Angiotensin II Effects on Axl Expression

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H9C2 cells were seeded (5×105 cells/well) into 12-well plates and cultured overnight. Cells were treated with different concentrations (0, 10−8, 10−7 or 10−6 M) of AngII (Shanghai YuanYe Biotechnology Co., Ltd.) for 6, 12 and 24 h at 37°C. Subsequently, reverse transcription-quantitative PCR (RT-qPCR) was performed to measure Axl expression levels.
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3

Modeling Aortic-VSMC Transfection for TAD

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Human aortic-VSMCs (HA-VSMCs, ATCC, Manassas, VA, USA) were cultured in a complete medium composed of F-12K medium (ATCC) according to the manufacturer's recommendation. For mimic TAD cell models in vitro, HA-VSMCs were induced with 0.1 μM Ang II (Yuanye Bio-Technology, Shanghai, China) for 24 h. HA-VSMCs were transfected with circNRIP1 siRNAs (si-circNRIP1#1: 5′-GACAGACGGAAGTGTTTGGATdTdT-3′; si-circNRIP1#2: 5′-ACAGACGGAAGTGTTTGGATTdTdT-3′), CXCL5 siR-NAs (si-CXCL5#1: 5′-GAGAGAGCTGCGTTGCGTTTGT TTA-3′; si-CXCL5#2: 5′-GAGAGCTGCGTTGCGTTTGTTT ACA-3′), CXCL5 overexpression vector (oe-CXCL5), IGF2BP1 siRNA (si-IGF2BP1: 5′-CCGGGAAAGTAGAATTACAAGG AAA-3′) and their controls (si-NC and vector) (RiboBio, Guangzhou, China) by Lipofectamine 3000 (Invitrogen, Carlsbad, CA, USA).
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4

Cardiomyocyte Hypertrophy Induction Protocol

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The H9c2 cardiomyocyte cell line was purchased from Procell Life Science & Technology Co., Ltd. Cells were maintained in high-glucose Dulbecco's modified Eagle's medium (DMEM; Procell Life Science & Technology Co., Ltd.) containing 10% fetal bovine serum (Gibco; Thermo Fisher Scientific, Inc.) and 1% penicillin-streptomycin (Biosharp Life Sciences) in a 5% CO2 incubator at 37°C. To induce the cardiomyocyte hypertrophy model, H9c2 cells were treated with either 60 µM ISO (MilliporeSigma) dissolved in phosphate-buffered saline (PBS) for 48 h, or 3 µM Ang II (Shanghai Yuanye Biotechnology Co., Ltd.) in PBS for 24 h in a 5% CO2 incubator at 37°C. The control group cells were treated with an equal volume of PBS in a 5% CO2 incubator at 37°C for 48 h (when compared with ISO) and 24 h (when compared with Ang II).
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