Fig. 1From: Roles of circRNAs in hematological malignanciesBiosynthesis of circRNAs. CircRNAs can be directly generated by back-splicing; Intron-driven circularization can be inhibited by RNA helicase DHX9; Lariat-driven circularization generates a lariat structure. Spliceosome can splice to generate circRNAs and lariat-introns RNAs. Lariat-introns RNAs can be degraded, but some lariat-introns RNAs can escape degradation to form ciRNAsBack to article page