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Cfx connect 96 real time pcr system

Manufactured by Bio-Rad
Sourced in United States

The CFX-Connect 96 Real-Time PCR System is a laboratory instrument designed for real-time polymerase chain reaction (PCR) analysis. It is capable of performing precise, quantitative detection and analysis of nucleic acid sequences.

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6 protocols using cfx connect 96 real time pcr system

1

Quantifying PIEZO1 Gene Expression

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Total RNA was extracted using the TRIzol reagent and reverse‐transcribed into cDNA using a reverse transcription kit (TAKARA, Japan). RT‐qPCR was performed using the SYBR FAST qPCR Master Mix in a CFX‐Connect 96 Real‐Time PCR System (Bio‐Rad, USA). GAPDH was used as an internal reference gene. The relative expression of PIEZO1 was calculated using the 2−ΔΔCt method. Primer sequences were as follows: PIEZO1 forward primer, 5′‐TCTTCCTTAGCCATTACTACCT‐3′, PIEZO1 reverse primer, 5′‐TACGCTCCATCTGTCTTTTC‐3′. GAPDH forward primer, 5′‐GGGAAACTGTGGCGTGAT‐3′, GAPDH reverse primer, 5′‐GAGTGGGTGTCGCTGTTGA‐3′.
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2

Hypoxia-Responsive Gene Expression Analysis

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Total RNA was extracted from cells
using ReliaPrep RNA Cell Miniprep System (Promega) and quantified
using a Nanodrop ND-1000 spectrophotometer. Complementary cDNA was
synthesized in a 20 μL reaction using 1 μg of total RNA
with GoScript Reverse Transcriptase (Promega) according to the manufacturer’s
instructions. Quantitative real-time PCR (RT-qPCR) was performed using
Universal Taqman PCR master mix (Applied Biosystems) and the TaqMan
gene expression assays of interest (Applied Biosystems) on a CFX-connect
96 Real-Time PCR system (Bio-Rad). Expression assays used in this
study were: 18S (Hs99999901_s1), ActB (Hs99999903_m1), VEGF (Hs00900055_m1),
CAIX (Hs00154208_m1), HIF-1α (Hs00153153_m1) and EPAS1 (Hs01026149_m1).
Expression values were expressed as ΔΔCT normalized
to expression of 18S and β-Actin and normoxic gene expression.
Hypoxia focused microarray was conducted using TaqMan Array Human
Hypoxia plates (Applied Biosystems). Expression values were expressed
as ΔΔCT normalized to expression of 18S and
normoxic gene expression.
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3

MXene Micropatterning Impacts on Cardiac Cells

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To observe the effect of MXene and patterning separately, three different sample types were prepared: (i) iCMs seeded on glass only, (ii) 1 mm2 Ti3C2Tx MXene squares printed on PEG (unpatterned), and (iii) Hilbert’s curve-patterned Ti3C2Tx MXene printed on PEG (patterned). After one week in culture, RNA was collected using a total RNA isolation kit (RNeasy, Qiagen, USA). The purity and concentration of RNA were measured using a NanoDrop 2000 Spectrophotometer (Thermo Fisher Scientific, USA). Using the iScript cDNA Synthesis Kit (Bio-Rad, USA), RNA was converted into cDNA. Certified human gene-specific primers were purchased from Bio-Rad (Table S2). For qRT-PCR reactions, iTaq SYBR Green Supermix (Bio-Rad, USA) was used and the reactions were run on CFX Connect 96 Real Time PCR system (Bio-Rad, USA) in duplicates. To quantify the relative expression of genes, ΔΔCt method was applied using GAPDH as the housekeeping gene.
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4

Thermostability of NylC-TS Variants

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The thermostabilities of the NylC-TS variants were determined using differential scanning fluorimetry (DSF). For each protein, a 5 µM sample of protein was prepared in reaction buffer and SYPRO Orange dye (provided at a 5000X concentration from the manufacturer), added to a final concentration of 10X. DSF was carried out using a Bio-Rad CFX Connect 96-Real Time PCR system, using the FRET channel for excitation and emission settings, and CFX Manager (version 2.0) for data collection. The temperature was increased with an increment of 0.3 °C/s from 25 °C to 95 °C. The Tm was then determined from the peak of the first derivative of the melt curve from three replicate measurements.
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5

Quantitative RT-PCR Protocol for mRNA Expression

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We extracted total RNA from cultured cells with AG RNAex Pro Reagent (AGbio, Hunan, China), and performed cDNA synthesis with 1 μg of total RNA with Evo M-MLV RT Kit (AGbio) based on the manufacturer’s instructions. We performed qRT-PCR to detect relevant mRNA expression with an SYBR® Green Premix Pro Taq HS qPCR Kit (AGbio) and a CFX Connect 96 Real-Time PCR System (Bio-Rad, Singapore). The expression level of mRNA relative to GAPDH was assessed by the 2−ΔΔCt method. The qRT-PCR primer sequences are listed in Supplementary Table 1.
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6

Comprehensive RNA Isolation and qRT-PCR Analysis

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RNA was collected from iCMs at different days of differentiation using a total RNA isolation kit (RNeasy, Qiagen). Fixed human heart tissue samples were first snap-frozen in liquid nitrogen, homogenized using mortar-pestle and then lysed in Trizol. After tissue debris was separated through centrifugation, the supernatant was mixed with chloroform and shaken vigorously for 30 sec. The solution was then centrifuged following the incubation step for phase separation. RNA was collected from the upper layer formed after centrifugation, using a total RNA isolation kit (RNeasy, Qiagen). RNA purity and concentration were measured on a NanoDrop 2000 Spectrophotometer (Thermo Fisher Scientific). RNA was converted into cDNA using the iScript cDNA Synthesis Kit (Bio-Rad). Validated human gene-specific primers were purchased from Bio-Rad (Supplementary Table 2). iTaq SYBR Green Supermix (Bio-Rad) was used for qRT-PCR reactions and run on CFX Connect 96 Real-Time PCR system (BioRad) in triplicates. The relative expression of genes was quantified by the ΔΔCt method using GAPDH as the housekeeping gene.
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