UCA1 and gastric cancer: Experimental evidence shows that sponging of miR-145 by UCA1 is dependent on sequence 5′-AGCUGGAC-3′ in UCA1 transcript EU334869.1 (ENST00000644174.2 UCA1-213 with 2688 nt) that forms a duplex with miR-145 sequence 3′-UUGACCUG-5′ in gastric cancer [74].