«To reduce off - target effects, we introduced preassembled Cpf1 RNPs into cells, assuming that Cpf1 RNPs, similar to Cas9 RNPs, would cleave target sites
immediately after transfection and would be degraded rapidly by endogenous enzymes that break the proteins, thereby reducing off - target effects without sacrificing on - target effects.»
48
hr after transfection, cells were seeded into six - well plates in triplicates and selected with puromycin (1.5 μg / ml) for 3 days.
Virus - containing supernatants were collected forty - eight hours
after transfection, passed through a 0.45 µm filter (Millipore) and concentrated by ultracentrifugation at 100,000 g for two hours at 4 °C.
Supernatants were collected for 3 consecutive days beginning 48 hours
after transfection.
Forty - eight hours
after transfection, the media were centrifuged and the supernatant was diluted with culture medium to 100 %, 50 % and 25 % the original concentrations.
Forty - eight hours
after transfection, the media were centrifuged at 800 g for 3 min and the supernatant was transferred into new tubes.
Twelve hours
after transfection, cells were treated with or without IFNα for another 24 h.
Twelve hours
after transfection, the cells were incubated for another 24 h in the culture supernatants of NB4 cells treated with or without ATRA.
Twenty - four hours
after transfection, cells were treated with the different drugs for 24 — 36 hours.
Twelve hours
after transfection, cells were treated with or without 1,000 units / mL IFNα.
The luciferase activity was measured 36 h
after transfection.
Six hours
after transfection 2.5 uM SAHA (to increase global histone acetylation) was added and BAZ2 - ICR was added 1 hour before imaging, which was carried out 24 hours after transfection.
Thirty - six hours
after transfection, the culture supernatants were collected and used for IFNα titration.
72 h
after transfection, cells were collected for RFLP assay (Mutation frequency analysis) or were seeded individually into 96 - well plates for isolating single cell colonies.
Twelve hours
after transfection, cells were treated with or without IFNα for another 24 h. Cell lysates (Input) were then immunoprecipitated (IP) with anti — IRF - 9 antibody followed by Western blot (WB) analysis with anti-STAT2 antibody.
NSCs transfected with anti-HER2 antibody were used 24 h
after transfection, the time - point that correlated with peak antibody expression.