Use of GapmeRs for gene expression knockdowns in human primary resting CD4+ T cells.

Abstract:

:Human primary resting CD4+ T cells are difficult to transfect while preserving viability. The present study evaluated gymnotic delivery and RNase H1-dependent gene expression knockdown mediated by antisense oligonucleotides, called GapmeRs. Exposure of primary resting CD4+ T cells to GapmeRs did not cause cell activation or affect cell viability. Gene expression knockdowns were stable at least up to 48 h after removal of GapmeRs from culture. Exposure to GapmeRs resulted in comparable levels of degradation along the entire transcript, which could be important when studying function of regulatory long non-coding RNAs. Efficiency of transcript degradation was not solely dependent on the dose of GapmeR, RNA target and its localization. When using GapmeRs, some optimization is required, and all targets have to be individually tested; however, using GapmeRs is advantageous in experiments where preservation of the resting state of the human primary CD4+ T cells and targeting nuclear RNAs are desired. In certain cases, combining GapmeR with siRNA for the same target may improve knockdown efficiency.

journal_name

J Immunol Methods

authors

Abewe H,Deshmukh S,Mukim A,Beliakova-Bethell N

doi

10.1016/j.jim.2019.112674

subject

Has Abstract

pub_date

2020-01-01 00:00:00

pages

112674

eissn

0022-1759

issn

1872-7905

pii

S0022-1759(19)30249-2

journal_volume

476

pub_type

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