The role of m6A RNA methyltransferase METTL3 in drug resistance mechanisms in acute myeloid leukemia
The role of m6A RNA methyltransferase METTL3 in drug resistance mechanisms in acute myeloid leukemia
Prajapati Suresh(Parul Institute of Applied Sciences, Parul University); Jyotishi Charmi(Parul Institute of Applied Sciences, Parul University); Patel Mansi(Research and Development Cell, Parul Institute of Applied Sciences, Parul University); Gupta Reeshu(Parul Institute of Applied Sciences, Parul University)
61권 1호, 7~7쪽
초록
This review examines the role of METTL3, a core RNA methyltransferase, in therapeutic resistance in acute myeloid leukemia (AML) and discusses emerging strategies to address this challenge. METTL3 regulates N6- methyladenosine ( m6A) modifications on transcripts involved in key cellular processes, including apoptosis (BCL2, MCL1), metabolism (PGC-1α, CSRP1), proliferation (MYC), autophagy (FOXO3), and bone marrow microenvironmental interactions (ITGA4, AKT1). These modifications enhance the stability and translation of resistance-associated genes, supporting leukemic cell survival under treatment pressure. Pharmacological targeting of METTL3 has shown efficacy in preclinical AML models. Inhibitors such as STM2457, METTL3-directed PROTACs, and rational drug combinations with agents including venetoclax, anthracyclines, and ATRA, have reversed resistance phenotypes and impaired leukemic cell fitness. Beyond canonical resistance mechanisms, METTL3 also regulates noncoding RNAs, autophagy, and metabolic–epigenetic crosstalk, including histone lactylation, linking epitranscriptomic regulation to broader resistance pathways. By integrating molecular, cellular, and microenvironmental evidence, this review underscores METTL3 as a central driver of drug resistance and a promising therapeutic target in relapsed or refractory AML. Unlike previous summaries, it highlights the convergence of METTL3-mediated m6A modifications with noncoding RNA regulation, autophagy, and niche adaptation, and critically evaluates emerging therapeutic approaches, including catalytic inhibitors, PROTACs, and natural compounds.
Abstract
This review examines the role of METTL3, a core RNA methyltransferase, in therapeutic resistance in acute myeloid leukemia (AML) and discusses emerging strategies to address this challenge. METTL3 regulates N6- methyladenosine ( m6A) modifications on transcripts involved in key cellular processes, including apoptosis (BCL2, MCL1), metabolism (PGC-1α, CSRP1), proliferation (MYC), autophagy (FOXO3), and bone marrow microenvironmental interactions (ITGA4, AKT1). These modifications enhance the stability and translation of resistance-associated genes, supporting leukemic cell survival under treatment pressure. Pharmacological targeting of METTL3 has shown efficacy in preclinical AML models. Inhibitors such as STM2457, METTL3-directed PROTACs, and rational drug combinations with agents including venetoclax, anthracyclines, and ATRA, have reversed resistance phenotypes and impaired leukemic cell fitness. Beyond canonical resistance mechanisms, METTL3 also regulates noncoding RNAs, autophagy, and metabolic–epigenetic crosstalk, including histone lactylation, linking epitranscriptomic regulation to broader resistance pathways. By integrating molecular, cellular, and microenvironmental evidence, this review underscores METTL3 as a central driver of drug resistance and a promising therapeutic target in relapsed or refractory AML. Unlike previous summaries, it highlights the convergence of METTL3-mediated m6A modifications with noncoding RNA regulation, autophagy, and niche adaptation, and critically evaluates emerging therapeutic approaches, including catalytic inhibitors, PROTACs, and natural compounds.
- 발행기관:
- 대한혈액학회
- 분류:
- 병리학