Panel A: A Northern blot analysis showing the expression of miR-BART3-5p (21 nucleotides), miR-BART5 (24 nucleotides), and 5S rRNA (120 nucleotides) in different cell lines. The cell lines include HK1, EBV-HK1, C666-1, 293, 293/pmiR-BART5, AGS/BX1, and AGS. The long exposure image is shown for miR-BART3-5p. Panel B: A Northern blot analysis showing the expression of pre-miR-BART5 (89 nucleotides), miR-BART5 (24 nucleotides), and U6 (106 nucleotides) in various cell lines. The cell lines include C666-1, NP01, NP02, NP03, NPC01, NPC02, NPC03, NPC04, NPC05, NPC06, NPC07, NPC08, and NPC09.