The phrase "affect the expression of microRNAs" is correct and usable in written English.
It can be used in scientific or academic contexts when discussing how certain factors influence the levels or activity of microRNAs.
Example: "Environmental factors can significantly affect the expression of microRNAs, leading to various biological outcomes."
Alternatives: "influence the levels of microRNAs" or "modulate the activity of microRNAs."
More interestingly, FGF-2 did not affect the expression of δEF1 at either the mRNA or protein level, nor did it affect the expression of microRNA-200b that directly targets δEF1 (Supplementary Figure S2D) (Gregory et al, 2008).
A single microRNA can affect the expression of hundreds of genes [14], [15].
The mammalian genome encodes hundreds of MicroRNAs [miRNAs] that collectively affect the expression of about one-third of all genes.
Since AtPV42a and AtPV42b shared high sequence similarity, microRNAs designed for either of them could simultaneously affect the expression of the other in transgenic plants.
MicroRNAs (miRNAs or miRs) are short non-coding RNAs that affect the expression of genes involved in normal physiology, but that also become dysregulated in cancer development.
However, MYC affects the expression of many other microRNAs (Chang et al., 2009; Kota et al., 2009).
The data indicate that aging impacted the expression of both guide and passenger strands of the microRNA clusters; nutrient stress also affected the expression of the three microRNA clusters.
Our results suggest that TWEAK affects the expression of several genes and microRNAs involved in inflammatory response, fibrosis, extracellular matrix remodeling, and proteolytic degradation which might be responsible for TWEAK-induced skeletal muscle loss.
MicroRNAs (miRNAs) are small non-coding RNAs affecting the expression of target genes via translational repression or mRNA degradation mechanisms.
For example, synonymous mutation may create microRNA-binding sites to facilitate mRNA degradation and influence the efficiency of protein translation, eventually affecting the expression of gene products.
