shRNA knockdown

Nancy C. Hernandez Villegas, schekman, wusj

Published: 2023-08-26 DOI: 10.17504/protocols.io.e6nvwdjj7lmk/v1

Abstract

This protocol describes a standard procedure to generate a stable cell line for a DNAJC5 knockdown using shRNA.

Steps

shRNA knockdown

1.

HEK293T cells were plated at a density such that on the day of transfection they are no more than 50% confluent.

2.

plKO.1-Hygroplasmids-containing shRNA targeting DNAJC5 (ccggGCAACCTCAGATGACATTAAACTCGAGTTTAATGTCATCTGAGGTTGCTTTTTG) together with pMD2.G and PsPAX2 were transfected into HEK293T cells to produce lentiviral particles for 72 hr.

3.

Lentivirus particles were concentrated with Lenti-X Concentrator follow manufacturer protocol (Takara Bio).

4.

SH-SY5Y cells were transduced by lentivirus before differentiation.

5.

Three days post transduction, cells were selected with 250 μg/ml hygromycin for 10 days.

6.

The selected cells were differentiated, and the knockdown was verified with immunoblot.

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