Thousands of different long non-coding RNAs (lncRNAs) exist in mammalian cells. lncRNAs do not encode proteins but can be very important for cell function. Studying their functions can be difficult because of their diverse modes of action. One method to discern cellular function is by selective knockdown of a specific lncRNA species. However, achieving consistent knockdown has proven to be more challenging for lncRNAs than for mRNAs or miRNAs. In this presentation, we discuss some of the issues encountered with lncRNA research. We cover antisense oligonucleotide (ASO) and small interfering RNA (siRNA) methods for lncRNA knockdown. And, we show how cellular localization of a specific lncRNA target informs the choice of knockdown method.

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