siRNA / miRNA gene silencing Human Primary Human Aortic Endothelial Cells GLO-1

Get tips on using ON-TARGETplus Human MET (4233) siRNA - SMARTpool to perform siRNA / miRNA gene silencing Human - MDA-MB-231 MET

When extracting nucleic acids from cell cultures, thorough homogenization of cells via vortexing in lysis buffer is very necessary. Choose the best RNA isolation method keeping in mind the downstream applications, generally, column-based isolations result in clean and concentrated RNA samples. Downstream applications like sequencing and cDNA synthesis require high-quality RNA, always treat the samples with DNases and check their integrity by running a gel.

Get tips on using Silencer® FANCD2 siRNA (human) to perform siRNA / miRNA gene silencing Human - 501 Mel and SK Mel 28 FANCD2

Get tips on using ON-TARGETplus Human PPRC1 siRNA to perform siRNA / miRNA gene silencing Human - MCF-7 PRC (PGC-1α–related coactivator)/PPRC1

Get tips on using Accell Human VDAC1 (7416) siRNA - Set of 4 to perform siRNA / miRNA gene silencing Human - Min-6 VDAC1

Get tips on using Accell Human VDAC1 (7416) siRNA - Set of 4 to perform siRNA / miRNA gene silencing Human - PC-3 VDAC1

Short hairpin or small hairpin RNA (shRNA) is artificial RNA, which has a hairpin loop structure, and uses inherent microRNA (miRNA) machinery to silence target gene expression. This is called RNA interference (RNAi). These can be delivered via plasmids or viral/bacterial vectors. Challenges in shRNA-mediated gene silencing include: 1. Off-target silencing, 2. Packaging shRNA encoding lentivirus, and 3. Stable transduction in cells. RNAi have been designed to have anywhere from 19-27 bs, but the most effective design has 19 bp. In case commercial shRNAs are not available, potential target sites can be chosen within exon, 5’- or 3’ UTR, depending on which splice variants of the gene are desired. One should use the latest algorithms and choose at least two different sequences, targeting different regions, in order to have confidence in overcoming off-target effects. A BLAST search after selecting potential design will eliminate potential off-target sequences. For the second challenge, sequencing the vector using primers for either strand (50-100 bp upstream) is suggested, along with using enzymatic digestion on agarose gel for the vector. Next, once the shRNA-containing vector is packaged in a virus, it is important to check the viral titer before transduction. Finally, using a marker in the lentiviral vector (fluorescent protein or antibiotic resistance), along with qPCR for target gene expression can help in determining efficacy of transduction and shRNA on its target site.

Get tips on using ON-TARGETplus Human NCR3LG1 (374383) siRNA - SMARTpool to perform siRNA / miRNA gene silencing Human - HT-29 B7-H6/NCR3LG1

Get tips on using ON-TARGETplus Human ABL2 (27) siRNA - SMARTpool to perform siRNA / miRNA gene silencing Human - MDA-MB-231 ARG/ABL2

Get tips on using ON-TARGETplus Human SLC7A5 (8140) siRNA - Individual to perform siRNA / miRNA gene silencing Human - MDA-MB-231 LAT1/SLC7A5