Table 3.

Function and downstream targets of axonal miRNAs.

Axonal miRNA	Species	Neuron type	Age	Function	Targeted mRNA	Cultured method	Reference
miR-338	Rat	Sympathetic neuron	P3	Mitochondrial oxidative phosphorylation	COXIV	Campenot chamber	Aschrafi et al. (2008)
miR-16	Rat	Sympathetic neuron	P3	Axon outgrowth	eIF2B2, eIF4G2	Campenot chamber	Kar et al. (2013)
miR-181d	Rat	Primary sensory neuron	E13.5	Axon elongation	MAP1B, calmodulin	Microfluidic chamber	Wang et al. (2015)
miR-132	Mouse	Primary sensory neuron	E13.5	Axon extension	Rasal	Microfluidic chamber	Hancock et al. (2014)
miR-9	Mouse	Cortical neuron	E17	Axon extension/branching	MAP1B	Microfluidic chamber	Dajas-Bailador et al. (2012)
miR-17-92	Rat	Cortical neuron	E18	Axon outgrowth	PTEN	Microfluidic chamber	Zhang et al. (2013)
miR-29c	Rat	Cortical neuron	E18	Axon outgrowth	ITBG1	Microfluidic chamber	Zhang et al. (2015b)

COXIV, cytochrome c oxidase IV; eIF2B2, eukaryotic translation initiation factors 2B, subunit 2β; eIF4G2, eukaryotic translation initiation factors γ4, subunit 2; E, embryonic day; ITBG1, integrin, β1 subunit; MAP1B, microtubule-associated protein 1B; P, postnatal day; PTEN, phosphatase and tensin homology; Rasa1, RAS p21 protein activator 1.