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6 protocols using one step superrt pcr mix kit

1

Total RNA Extraction and qRT-PCR Analysis

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Total RNA extraction kit (R1200), bought from Solarbio (China), was applied to isolate total RNA from cells. Then, a one-stepSuperRT-PCR mix kit (T2240, Solarbio, China) was applied to conduct the qRT-PCR reaction. Afterward, the signals were examined in a PCR system (EDC-810, Eastwin Life Sciences, Inc.). GAPDH was employed as the normalization control. The relative levels of gene were counted utilizing 2−ΔΔCT. The primers are displayed in Table 1.
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2

RT-qPCR Analysis of Gene Expression

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RNAs were collected from cells and tissues. RT-qPCR was performed using One Step SuperRT-PCR Mix Kit (T2240, Solarbio) on a Mastercycler® nexus (6330000072, Eppendorf Inc.). All primers used in the present study were designed and synthesized by Genewiz Inc. GAPDH and U6 served as loading controls. The thermocycling conditions were as follows: denaturation at 94°C for 60 s, annealing at 37°C for 60 s for 30 cycles, and extension at 72°C for 120 s. The results were analyzed using the 2−ΔΔCt method [23 (link)]. The sequences of the primers were as follows: AC012668 forward (F) 5'-ATCAGAATCACCTGGCGGTC-3', reverse (R) 5'-TGTACTAGCGGCATCAGCAG-3'; SCD1 F 5''GCTGATCCTCATAATTCCCGA‐3', R 5';TTAAGCACCACAGCATATCGC‐3'; SREBP1 F 5'-ACAGTGACTTCCCTGGCCTAT-3', R 5'-GCATGGACGGGTACATCTTCAA-3'; FAS F 5'-AAATGAAAGCCAACTGCATCGAC-3', R 5'-ATTGGACCCTCGCTGAGCAC-3'; miR-380-5p F 5'-CTCGCTTCGGCAGCACA-3', R 5'-CAGTGCGTGTCGTGGAGT-3'; LRP2 F 5'-CCTTGCCAAACCCTCTGAAAAT-3'; R 5'-CACAAGGTTTGCGGTGTCTTTA-3'; and GAPDH F 5'-GGGAGCCAAAAGGGTCATCA-3', R 5'-TGATGGCATGGACTGTGGTC-3'.
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3

Quantitative Expression Analysis of Stemness Genes

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Total RNA Extraction Kit (Cat # R1200, Solarbio, Beijing, China) was used to extract RNA from cells. One Step SuperRT-PCR Mix Kit (Cat # T2240, Solarbio) was utilized to synthesize the complementary DNA (cDNA). qRT-PCR analysis was constructed using 2× SYBR Green PCR Mastermix (Cat # SR1110, Solarbio), and GAPDH mRNA was designated as the internal reference. 2−ΔΔct method was carried out to calculate the relative expression levels. The detailed primer sequences were listed as below: OTUB1 (forward: 5ʹ- ATGACCAGAGCACCTCCGACTACC-3ʹ, reverse, 5ʹ-GACCATTTACAACCACAGAAAAAC-3ʹ), SLC7A11 (forward: 5ʹ- GGTTTGTAATGATAGGGCGGCAGC-3ʹ, reverse, 5ʹ- CCATAGTAGGGACACACGGGGGAA-3ʹ), Oct4 (forward: 5ʹ- AGCGATCAAGCAGCGACTA-3ʹ, reverse, 5ʹ- GGAAAGGGACCGAGGAGTA-3ʹ), Sox2 (forward: 5ʹ- CATCACCCACAGCAAATGAC-3ʹ, reverse, 5ʹ-CAAAGCTCCTACCGTACCACT-3ʹ), CD133 (forward: 5ʹ- TGGTGGGGTATTTCTTTTGTATGT-3ʹ, reverse, 5ʹ- ACGCCTTGTCCTTGGTAGTGTTGT-3ʹ), GAPDH (forward: 5ʹ- CTTAGTTGCGTTACACCCTTTCTTG- 3ʹ, reverse, 5ʹ- CTGTCACCTTCACCGTTCCAGTTT-3ʹ).
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4

Quantification of Target Gene Expression

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Total RNA was isolated from macrophages, SVCs, BMDMs, or human WATs using the Total RNA Extraction Kit (Solarbio, Beijing, China) and reverse transcribed into cDNA using the One Step SuperRT-PCR Mix Kit (Solarbio). The SYBR Green Real-Time PCR Master Mix (TOYOBO, Japan) was used for quantitative RT-PCR to detect target gene expression levels. The relative gene expression normalized to β-actin was calculated using the 2−ΔΔCT method. Online supplementary Table 2 lists the primer sequences used in this study.
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5

Quantitative RT-PCR Analysis of CLEC14A

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RNA of the liver tissues, PBMCs, and cells was extracted by TRIzol® reagent (Invitrogen; Thermo Fisher Scientific, Inc.). Reverse transcription and qPCR were carried out using One Step SuperRT-PCR Mix Kit (T2240; Solarbio) on Mastercycler® nexus (6330000072; Eppendorf, Inc.). All primers used in the present study were designed and synthesized by Genewiz Inc. GAPDH was used as the internal reference gene. The thermocycling conditions were as follows: denaturation at 94°C for 60s, then annealing at 37°C for 60s for 30 cycles. At last, the extension was at 72°C for 120s. The 2ΔΔCt method was used for calculating the fold change in gene expression level. The sequences of the primers were: CLEC14A forward primer, 5’-CTGCACCACGCTACCATGAA-3’; CLEC14A reverse primer, 5’-CCAGGAGAAACCCCGCAAA-3’; GAPDH forward primer, 5’-TGTGGGCATCAATGGATTTGG-3’; GAPDH reverse primer, 5’- ACACCATGTATTCCGGGTCAAT-3’.
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6

Exosomal RNA and Protein Isolation

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The total exosomal RNAs and protein isolation kit (4478545, Invitrogen, USA) could be used to purify the total RNAs in exosomes. Total RNAs from tumor tissues or cells were harvested by Triquick reagent (R1100, Solarbio, China) and tissue/cell miRNA extraction kit (R2220, Solarbio, China). Then, the collected RNAs were inversely transcribed into cDNAs according to One Step SuperRT-PCR Mix Kit (T2240, Solarbio, China) or miRNA First-Strand cDNA Synthesis Kit (KR211, TIANGEN, China). Thereafter, qPCR was conducted with FastFire qPCR PreMix (FP207, TIANGEN, China) and miRNA qRT-PCR Kit (FP411, TIANGEN, China) under the Thermal Cycler Dice Real Time System III (Takara, China). Oligo (dT)-Universal Tag universal reverse transcription primer was used as the reverse primer of miRNA and U6. The sequence information of primers was exhibited as follows: CDKN2B-AS1 (5′-3′): AGTTAGGGTGTGGTATGTGCC, ACATCCAAGACAGCAAGTGGT; P4HA1 (5′-3′): AGTACAGCGACAAAAGATCCAG, CTCCAACTCACTCCACTCAGTA; GAPDH (5′-3′): TGCACCACCAACTGCTTAGC, CATGCACTGTGGTCATGAG; MiR-122-5p forward primer (5′-3′): TGGAGTGTGACAATGGTGTTTG; U6 forward primer (5′-3′): CTCGCTTCGGCAGCACATATACT.
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