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5 protocols using real time quantitative pcr instrument

1

Quantitative Real-Time PCR for Gene Expression

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The total RNA was extracted using Ultrapure RNA Kit according to the manufacturer’s instructions (CWBIO, Taizhou, China). The RNA was reverse transcribed into cDNA using a Superscript II reverse transcription kit (Vazyme, Nanjing, China). Then, we used a SYBR-Green master kit (Vazyme, Nanjing, China) on a quantitative real-time PCR instrument (Applied Biosystems, USA). GAPDH or U6 was used for standardization. The primers used to amplify all of mRNA and miRNA involved in this study were chemically synthesized by TSINGKE (TSINGKE, Beijing, China) and the primer sequences used for qRT-PCR are shown in Supplementary Table 3.
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2

Cytokine Expression in Blood Cells

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The peripheral blood of patients was taken before treatment and 14 days after treatment. After the erythrocytes were lysed, the RNA of white blood cells was extracted with an RNA extraction kit (Kangwei Co., Beijing, China), which was then transcribed to cDNA with a reverse transcription kit (TaKaRa, Dalian, China). Based on gene sequences provided by GenBank, primers for interleukin-6 (IL-6), tumor necrosis factor alpha (TNF-α), and interleukin-1 beta (IL-1β) were designed with optimized annealing temperatures, and then quantitative real-time PCR was conducted with SYBR Green mix (Roche, Basel, Switzerland). Data were collected via a quantitative real-time PCR instrument (Applied Biosystems, Foster City, CA, USA). The mRNA expression of IL-6, TNF-α, and IL-1β of each patient before and after treatment was analyzed and expressed as the mean ± SD.
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3

Quantitative Analysis of Gene Expression

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Total RNA was extracted utilizing the RNAsimple Total RNA kit (Tiangen). The ReverAid FirstStrand cDNA Synthesis kit (Thermo Scientific) was used to synthesize cDNA. The mRNA expression level was analyzed by real-time quantitative PCR instrument (Applied Biosystems) with Maxima SYBR Green qPCR Master Mix (Thermo Scientific). The primers’ sequences were shown as follows: human AFP, 5′-GCAGTGAATCTACAGGGACGC-3′ and 5′-ATCCTGATCCAACCAATCACC-3′; human HBP1, 5′-TGAAGGCTGTGATAATGAGGAAGAT-3′ and 5′-CATAGAAAGGGTGGTCCAGCTTA-3′; and human GAPDH, 5′-CCATGGAGAAGGCTGGGG-3′ and 5′-CAAAGTTGTCATGGATGACC-3′; mouse HBP1, 5′-TGGGAAGTGAAGACAAAT-3′ and 5′-TGACAGGGAGGACATACA-3′; mouse AFP, 5′-AAACCTCCAGGCAACAACCA-3′ and 5′-ACTCCAGCGAGTTTCCTTGG-3′; mouse IL-1β, 5′-GAAATGCCACCTTTTGACAGTG-3′ and 5′-TGGATGCTCTCATCAGGACAG-3′; mouse TNF-α, 5′-CAGGCGGTGCCTATGTCTC-3′ and 5′-CGATCACCCCGAAGTTCAGTAG-3′; mouse type I collagen, 5′-GCTCCTCTTAGGGGCCACT-3′ and 5′-CCACGTCTCACCATTGGGG-3′; mouse type III collagen, 5′-ACGTAGATGAATTGGGATGCAG-3′ and 5′-GGGTTGGGGCAGTCTAGTG-3′; mouse β-actin, 5′-AGCCATGTACGTAGCCATCC-3′ and 5′-GCTGTGGTGGTGAAGCTGTA-3′.
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Quantifying Zebrafish GAD1 Expression via qPCR

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Embryos treated with ethanol or ACEA as described above were collected, pooled (n=15) into tubes, and mRNA was extracted with RNAzol (Molecular Research Center, INC). 1 μg mRNA was used for cDNA synthesis using iScript reverse transcriptase (Bio-Rad) with a mix of oligo(dT) and random hexamers as primers. 50 ng cDNA was used for real time PCR amplification, which was performed with TaqMan® Gene Expression Master Mix (Life Technology) and TaqMan Gene Expression Assay ID (Dr03080474_g1) (Life Technology) for zebrafish gad1 expression or TaqMan Gene Expression Assay ID (Dr03432610_m1) (Life technology) for endogenous control zebrafish ß-actin expression. The PCR reaction plate was run on an Applied Biosystems real-time quantitative PCR instrument in triplicates using the default PCR thermal cycling conditions. Quantitation of gad1 was normalized to the internal ß-actin. Relative gad1 mRNA levels from each treatment group were compared against control, untreated gad1 mRNA levels.
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5

Quantitative RT-PCR Analysis of Gene Expression

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Total RNA was extracted utilizing the RNAsimple Total RNA kit (Tiangen). The ReverAid FirstStrand cDNA Synthesis kit (Thermo Scienti c) was used to synthesize cDNA. The mRNA expression level was analyzed by real-time quantitative PCR instrument (Applied Biosystems) with Maxima SYBR Green qPCR Master Mix (Thermo Scienti c). The primers' sequences were shown as follows: human AFP, 5'-GCAGTGAATCTACAGGGACGC-3' and 5'-ATCCTGATCCAACCAATCACC-3'; human HBP1, 5'-TGAAGGCTGTGATAATGAGGAAGAT-3' and 5'-CATAGAAAGGGTGGTCCAGCTTA-3'; and human GAPDH, 5'-CCATGGAGAAGGCTGGGG-3' and 5'-CAAAGTTGTCATGGATGACC-3'; mouse HBP1, 5'-TGGGAAGTGAAGACAAAT-3' and 5'-TGACAGGGAGGACATACA-3'; mouse AFP, 5'-AAACCTCCAGGCAACAACCA-3' and 5'-ACTCCAGCGAGTTTCCTTGG-3'; mouse IL-1β, 5'-GAAATGCCACCTTTTGACAGTG-3' and 5'-TGGATGCTCTCATCAGGACAG-3'; mouse TNF-α, 5'-CAGGCGGTGCCTATGTCTC-3' and 5'-CGATCACCCCGAAGTTCAGTAG-3'; mouse type collagen, 5'-GCTCCTCTTAGGGGCCACT-3' and 5'-CCACGTCTCACCATTGGGG-3'; mouse type collagen, 5'-ACGTAGATGAATTGGGATGCAG-3' and 5'-GGGTTGGGGCAGTCTAGTG-3'; mouse β-actin, 5'-AGCCATGTACGTAGCCATCC-3' and 5'-GCTGTGGTGGTGAAGCTGTA-3'.
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