Table 1.

RNA oligonucleotides in this article.

Name	Sequence (5′-3′)
miR-9-5p mimic	UCUUUGGUUAUCUAGCUGUAUGA
Negative mimic	UUGUACUACACAAAAGUACUG
miR-9-5p inhibitor	UCAUACAGCUAGAUAACCAAAGA
Negative inhibitor	CAGUACUUUUGUGUAGUACAA
Si-IGF2BP3-984	GCUGCUGAGAAACCAAUUATT UAAUUGGUUUCUCAGCAGCTT
Si-IGF2BP3-1214	GCAGGACUUGACACUCUAUTT AUAGAGUGUCAAGUCCUGCTT
Si-IGF2BP3-1519	CCUUGGCAGUUGGAGCUAUTT AUAGCUCCAACUGCCAAGGTT
Si-NC	UUCUUCGAACGUGUCACGUTT ACGUGACACGUUCGGAGAATT

For IGF2BP3 overexpression plasmid construction, the coding sequence fragments of IGF2BP3 was cloned into pcDNA3.1 (+) vector using T4 DNA ligase (TakaRa; Tokyo, Japan) following the restrictive endonuclease digestion of HindIII and KpnI restriction enzyme (TakaRa). Then, the successfully constructed vectors were termed as pcDNA3.1- IGF2BP3 after confirming by sequencing.