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8 protocols using sybr green pcr master mix

1

Quantitative Real-Time PCR for EZH2-Interacting RNAs

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RIP was followed by quantitative real-time PCR using an ABI 7900 Real Time PCR Instrument, using the SYBR green PCR Master Mix (DBI bioscience). U1 was used as a control RNA for normalization. The primer sequences are shown in Supplementary Table 5.
To test the authenticity of EZH2-interacting RNAs, RIP assay under more stringent condition was performed [30 (link)] and RIP enriched RNAs were subjected to RT-qPCR. The primer sequences are shown in Supplementary Table 5.
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2

Quantitative RT-PCR Analysis of Cardiac Fibrosis

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Total RNA was isolated by Trizol, and then was reverse transcribed using cDNA synthesis kit (DBI Bioscience, Ludwigshafen, Germany). All primers were designed by Premier 5.0 software or reported in previous literature [7 (link)], and were synthesized by Invitrogen. The primer sequences are as followings: rat TNF-α (sense: TGTTCATCCGTTCTCTACC; antisense: CCACTACTTCAGCGTCTC), rat IL-6 (sense: CGGAGAGGAGACTTCACA; antisense: GCATCATCGCTGTTCATAC), rat collagen type I (Col1a1) (sense: ATCCTGCCGATGTCGCTAT; antisense: CCACAAGCGTGCTGTAGGT), rat collagen type III (Col3a1) (sense: CTGGTCCTGTTGGTCCATCT; antisense: ACCTTTGTCACCTCGTGGAC), rat angiotensin-converting enzyme (ACE) (sense: TTGGCTCTGTCTGTGTCT; antisense: CTCCTTGGTGATGCTTCC), rat Ang (sense: CTGGAGCTAAAGGACACACAGA; antisense: CAGGGTCTTCTCATCCACGG), rat Renin (sense: CACCTTCATCCGCAAGTT; antisense: GCAGAGCCAGACAGAATG), rat AT1R (sense: GGCAGGCACAGTTACATAT; antisense: CAAGGCGAGATTGAGAAGA). Each real-time PCR were carried out in a total volume of 20 μl with SYBR Green PCR Master Mix (DBI Bioscience) with the reaction condition: 95°C 2min, 40 cycles at 95°C 15S, 60°C 15S, 68°C 10S, 72°C 20S. Relative mRNA expression levels were firstly normalized to β-actin by using the ΔΔCt method and then normalized the value for each sample by divided it by the value of one sample from that of the Con+Ve group.
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3

Quantitative Gene Expression Analysis

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Total RNA was extracted using TRIzol (DBI Bioscience, Shanghai, China). cDNA was obtained using a reverse transcription kit (DBI Bioscience, Shanghai, China) and amplified using SYBR Green PCR Master Mix (DBI Bioscience, Shanghai, China) according to the manufacturer’s instructions. β-actin was used to normalize gene expression, and the relative gene expression values were calculated using the 2–∆∆Ct method20 (link). Primer sequences were retrieved from PrimerBank 40 (Supplementary Table 2), and primer specificity was further validated using the National Center for Biotechnology Information Primer-BLAST tool.
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4

Total RNA Isolation and qRT-PCR Analysis

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Total RNA was isolated from roots tissue or protoplasts using TransZol reagent (TransGen Biotech); genomic DNA contamination was eliminated with DNase I (Roche). M-MLV reverse transcriptase (Thermo Scientific) was used for first-strand cDNA synthesis. Real-time PCR was conducted in technical triplicates using SYBR Green PCR master mix (DBI Bioscience). GhACTIN14 was used as the reference gene. Three to four biological replicates were performed; the results were analyzed with SPSS statistics 17.0 (IBM).
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5

Protein and mRNA Expression Analysis

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Total cellular and nuclear proteins were extracted from cells 68 (link). Protein expression of ABCA1, ABCG1, KLF4, VCAM-1, ICAM-1, PECAM-1, CD36, LOX-1, αSMA, GAPDH, CD68, SRBI, Lamin A/C, and SRA were determined by Western blot. Total RNA was extracted from cells or aorta followed by determination of mRNA expression by quantitative real-time PCR (q-RT-PCR) with a reverse transcription kit (Vazyme bioteck co., ltd), a SYBR green PCR master mix (DBI, Bioscience), and the primers with sequences listed in Table 2. Expression of IL-1β, TNF-α, IL-6, Arg1 and iNOS mRNA was normalized by GAPDH mRNA in the corresponding samples.
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6

Quantifying Hippocampal Gene Expression

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Total RNA was extracted from the hippocampal tissues of rats by using TRIzol reagent (Invitrogen, CA, USA), and cDNA was synthesized using a qRT-PCR kit (Bestar; DBI Bioscience). qRT-PCR was performed in a Stratagene RT-PCR system (Applied Biosystems, USA) by using SYBR® Green PCR Master Mix (DBI Bioscience). The thermal cycling conditions were as follows: 95 °C for 2 min, followed by 40 cycles of 94 °C for 20 s, 58 °C for 20 s, and 72 °C for 40 s. The relative expression of each target gene was quantified using the 2−ΔΔCt method. GAPDH was used to normalize circLrp1b and Dram2 mRNA. U6 served as an endogenous control for miR-27a-3p. The primer sequences are listed in Table 1.
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7

Quantifying Apoptosis-Related Gene Expression via RT-qPCR

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The quantification of mRNA levels of apoptosis-related genes was evaluated using RT-qPCR. Total RNA was extracted using Trizol (Life Technologies Corp.) and subjected to reverse transcription with random primers using SuperScript III (Life Technologies Corp.) to obtain cDNAs. RT-qPCR was performed using a SYBR Green PCR Master Mix (DBI Bioscience, Shanghai, China) according to the manufacturer’s protocol. The primer sequences were used for real-time PCR (S5 Table). Threshold cycle (Ct) values were automatically calculated by the Applied Biosystems StepOnePlus system (Applied Biosystems Inc., Foster City, CA, USA). The PCR conditions were as follows: 95°C for 10 min, followed by 40 cycles of 95°C for 15 sec and 60°C for 1 min. The intensity of each gene was normalized by GAPDH expression. According to the ΔΔCt method, differential expression was calculated as a ratio of the expression levels of target genes in PGL-treated and -untreated cells.
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8

Quantitative Gene Expression Analysis

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Total RNA was extracted from cells and frozen samples by using Trizol reagent (Thermo Fisher Scientific, Waltham, MA, USA) and then reverse transcribed into cDNA. Real-time polymerase chain reaction (PCR) was performed using SYBR Green PCR Master Mix (DBI® Bioscience, Ludwig-shafen, Germany) and ABI PRISM 7900 Sequence Detection System (Thermo Fisher Scientific). Results were normalized to β-actin for mRNA measurement. All the primer sequences used in this study were listed as follows: PD-L1 (forward: TGGCATTTGCTGAACGCATTT, reverse: TGCAGCCAGGTCTAATTGTTTT); CD8A (forward: ATGGCCTTACCAGTGACCG, reverse: AGGTTCCAGGTCCGATCCAG); interferon (IFN)-γ (forward: TCGGTAACTGACTTGAATGTCCA, reverse: TCGCTTCCCTGTTTTAGCTGC); β-actin (forward: CATGTACGTTGCTATCCAGGC, reverse: CTCCTTAATGTCACGCACGAT).
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