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Tumor Discovery                                                  RNA-protein complexes deregulated in cancer




            Table 5. m6A modification: Role of ncRNA interactions with m6A writers, readers, and erasers
            lncRNA                     Interaction        Modified              Effect               References
            FEZF1-AS1         IGF2BP1 sequestration       m6A      Apoptosis                            195
            DARS1-AS1         METTL3-METTL14              m6A      Proliferation                        196
            THOR              Readers YTHDF1 and YTHDF2   m6A      Oncogenesis                          197
            LNCAROD           METTL3-METTL14              m6A      Prevents YBX1 degradation            198
            GAS5              Reader YTHDF3               m6A      GAS5 degradation                     199
            LINC021           IGF2BP2                     m6A      MSX1 stability                       200
            LINC0047          METTL3                      m6A      PTEN-m6A degradation                 125
            CASC11            ALKBH5                      m6A      Decrease in m6A UBE2T                200
            NEAT1_2           ALKBH5, YTHDF2              m6A      Destabilize mRNA                   201,202
            PVT1              Silencing ALKBH5            m6A      Decrease levels                      58
            LEAWBIH           YTHDC1                      m6A      Recruits H3K9me2 demethylase KDM3B   203
            MALAT1            The serine/arginine-rich splicing factor   m6A  lncRNA m6A methylation    204
                              TRA2A forms a complex with writers
                              METTL14, RBMX, KIAA1429
            LINC00022         FTO                         m6A      Block degradation by YTHDF2          205
            DANCR             IGF2BP2                     m6A      Stabilized DANCR                     206
            circARHGAP35/     METTL3, HNRNPL              m6A      Promotes its translation, producing an   102
            circDLC1                                               oncogenic protein
            circDDIT4         METTL3-WTAP                 m6A      Suppresses anoctamin (ANO7) binding to   189
                                                                   ELAVL1/HuR, reduces PC progression
            circRBM33         METTL3/YTHDC1               m6A      RNA stability, abdominal aortic aneurysm  207
            circ0049271       WTAP                        m6A      IGF2BP3 binding, regulation of the TGF-b/  208
                                                                   SMAD signal, and promotion of EMT in gastric
                                                                   cancer
            circPTPRA, circNSUN,   WTAP writer complex, IGF2BP1   m6A  Cytoplasmic export and formation of protein   209
            circ1662, circMEG3  binding, recruitment of YTHDF3 and   ternary complexes
                              YTHDC1
            circMARK2         METTL3                      m6A      Cytoplasmic export, Lin28B stabilization, Wilms   210
                                                                   tumor progression
            Note: An extensive database (http://www.xjtlu.edu.cn/biologicalsciences/m7ghub) is available as a tool to check RNA modifications.
            Abbreviations: FTO: Fat mass and obesity; ALHB1: AlkB homolog protein 5; IGF2BP1: Insulin-like growth factor mRNA-binding protein 1;
            METTL3: Methyltransferase 3, N6-adenosine-methyltransferase complex catalytic subunit; CircARHGAP35/CircDLC1: Rho GTPase activating
            protein 35 circular RNA; CircDDIT4: Damage inducible transcript 4 circular RNA; CircPPTRA; Protein tyrosine phosphatase receptor type A
            circular RNA; DARS1-AS1: Aspartyl-tRNA synthetase, antisense; FEZF1-AS: FEZ family zinc finger1, antisense; GAS5: Growth arrest specific 5;
            LNCAROD: LncRNA activating regulator of DKK1; DANCR: Differentiation antagonizing non-protein coding RNA; LEAWBIH: Long noncoding
            RNA epigenetically activating Wnt/β-catenin signaling in HCC.

            activator, have also been identified. 191,215  New studies   vesicle-like  nanoparticles  encapsulating  YTHDF1-siRNA
            are investigating the role of m7G modification in cancer   enhanced immune responses and improved anti-PD-1
            through METTL1 activity, with efficient inhibitors   therapy outcomes in vivo. 223
            undergoing testing. 218
                                                                 ONC213 suppressed mitochondrial respiration,
              Studies have also focused on inhibitors and activators   elevated  α-ketoglutarate by inhibiting  α-ketoglutarate
            of m6A readers. IGF2BP1 and IGF2BP2 inhibitors     dehydrogenase  (αKGDH),   and  exhibited  potent
            have shown antiproliferative effects. 219-222  For instance,   antileukemia activity with minimal toxicity. ALK‐04 is a
            SU056, an azopodophyllotoxin-derived small molecule,   selective ALKBH5 inhibitor. 220
            effectively inhibits IGF2BP2, promoting apoptosis and
            RNA degradation while reducing splicing pathways, with   Several classes of FTO inhibitors have been developed
                                                                                    224
            inhibitory effects in ovarian, lung, and breast cancers   to target m6A erasers,  including metal-chelating
            and AML.  Silencing the YTHDF1 m6A reader using    inhibitors, substrate-competitive inhibitors, and various
                    219
            Volume 3 Issue 4 (2024)                         15                                doi: 10.36922/td.4657
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