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4 protocols using amv 2 reverse transcription system

1

Profiling Survivin Splice Variants in MCF-7 Cells

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Total RNA was isolated from treated and untreated MCF-7 cells using TRIzol reagent from ThermoFisher Scientific, USA. Complementary deoxyribonucleic acid (cDNA) was synthesized from the total RNA using the AMV II Reverse transcription System (Promega, USA). The cDNA samples were normalized to a consistent concentration of 200 ng. The cDNA samples were then subjected to PCR using primers which amplify the different survivin splice variants (Table 1).
The EmeraldAmp® GT PCR Kit (Takara Bio, USA) was used and the manufacturer’s instructions were followed. Briefly, the 25 µL reaction mix containing 12.5 µL EmeraldAmp®, GT PCR Master Mix (Takara Bio), 1 µl of each primer, 9.5 µl of water and 1 µl of DNA template. The PCR products were visualised on a 1.3% agarose gels. The gels were then viewed using a Chemidoc XRS image analyser (BioRad, Hercules, CA, USA).
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2

Analysis of Apoptosis and Cell Cycle Genes

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ZR® RNA MiniPrep Kit (Zymo Research, United States) was used for total RNA extraction and manufacturer’s instructions were followed. The complementary deoxyribonucleic acid (cDNA) was synthesised using a Promega AMV II Reverse Transcription System (United States). The EmeraldAmp® GT PCR Kit (Takara Bio, United States) was employed for the amplification of apoptosis-related genes, cell cycle-related genes and STAT genes using the primer sets (Table 1). Amplification was done using T100 Thermal Cycler (BioRad, United States). The PCR products were mixed with the novel juice (Genedirex, Taiwan). Samples were visualised using 2% agarose gels, which were viewed using D-DiGit Gel Scanner (LICOR, United States). The band densities from three independent experiments were measured and analysed using ImageJ software [National Institutes of Health (NIH), United States].
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3

Quantitative Expression Analysis of Apoptosis and STAT Genes

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ZR® RNA MiniPrep Kit (Zymo Research, USA) was used for total RNA was extracted, and manufacturer’s instructions were followed. The complementary deoxyribonucleic acid (cDNA) was synthesised using Promega AMV II Reverse Transcription System (USA). The EmeraldAmp® GT PCR Kit (Takara Bio, USA) was employed for the amplification of apoptosis-related genes and STAT genes. Amplification using different primer sets shown in Table 1 was done using T100™ Thermal Cycler (BioRad, USA).. The PCR products were mixed with the novel juice (Cat no. LD001-1000) [Celtic Molecular Diagnostic, South Africa]. Samples were visualised using 2 % agarose gels which were viewed using D-DiGit Gel Scanner (Analytical technology, South Africa). The band densities from three independent experiments were measure using Image J software.

The primer sequences of apoptosis-related genes and STAT genes.

Table 1
GeneForward PrimersReverse Primer
p535′- GTTGCCCAGGCTGGAGTGGAG -3′5′- GGCTGAGACAGGTGGATCGC -3′
Bcl-25′- GCACCGGGCATCTTCTCCTC-3′5′- CCGAGATGTCCAGCCAGCTG -3′
Bax5′-GGGTGGTTGGGTGAGACTC-3′5′-AGACACGTAAGGAAACGCATTA-3′
STAT15′-GCCCCGATGGTCTCATTCCG-3′5′-GTCCTTCAACAGGGCACGCT-3′
STAT35′-TGCCTGCGGCATCCTTCTGC-3′5′-ACAGGCGTGAGCCACCATGC-3′
STAT5B5′-GGATGGGTGCATCGGGGAAG-3′5′-TCTCAGAGGCAGGTGCTGGT-3′
GAPDHAGCTGAACGGGAAGCTCACTTGCTGTAGCCAAATTCGTTG
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4

MCF-7 Cell Culture and Analysis

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The MCF-7 cells were kindly donated by Prof Mervin Meyer from the University of the Western Cape, South Africa. Dulbecco’s Modified Eagle Medium (DMEM) and foetal bovine serum (FBS) were purchased from Hyclone (Hyclone, South Logan, UT, USA). Antibiotic mixture containing penicillin and streptomycin (Pen-Strep), phosphate buffered saline (PBS) the MTT [3-(4,5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide], 4′, 6-diamidino-2-phenylindole (DAPI), Trizol reagent were obtained from ThermoFisher Scientific (ThermoFischer Scientific, Waltham, MA, USA) while Dimethyl Sulfoxide (DMSO) was purchased from (Sigma-Aldrich (Sigma-Aldrich, St. Louis, MO, USA). The AMV II Reverse transcription system was purchased from Promega (Promega, Madison, WI, USA) while the EmeraldAmp® GT-PCR Kit was procured from Takara Bio (Takara Bio, Kasatsu, Shiga Prefecture, Japan). The Muse® Assay Kits (Muse® Count and Viability Assay, Muse® Cell Cycle Assay, Muse® Annexin V and Dead Cell Assay, Muse® MitoPotential Assay, Muse® Multi-Caspase Assay, Muse® MAPK Assay and Muse® PI3k Assay) were all purchased from Merck-Millipore (Merck-Millipore, Darmstadt, Germany). All the reagents were used without further purification or alterations.
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