Progression of m⁶A in the tumor microenvironment: hypoxia, immune and metabolic reprogramming

Area of Science:

• Molecular Biology
• Cancer Research
• Immunology

Background:

• N6-methyladenosine (m⁶A) is a crucial RNA modification impacting gene expression and cellular functions.
• The tumor microenvironment (TME) comprises diverse cells that significantly influence tumor progression and immune response.
• Dysregulation of m⁶A and TME homeostasis is implicated in various cancers.

Purpose of the Study:

• To elucidate the composition of m⁶A regulatory mechanisms and the TME.
• To explore the intricate relationship between m⁶A methylation and TME characteristics.
• To investigate the role of m⁶A in modulating TME cell functions and its impact on tumor development.

Main Methods:

• Review of current literature on m⁶A modifications and TME components.
• Analysis of studies linking m⁶A regulators (writers, erasers, readers) to TME cell types (e.g., T cells, CAFs).
• Examination of experimental evidence demonstrating m⁶A's influence on TME-associated processes like immune cell function and tumor invasion.

Main Results:

• m⁶A modification impacts the function of various immune and non-immune cells within the TME.
• Aberrant m⁶A patterns are associated with altered TME composition and pro-tumorigenic activities.
• m⁶A regulators are key players in shaping the TME landscape and influencing therapeutic responses.

Conclusions:

• m⁶A plays a significant role in regulating the TME, affecting tumor progression and immune evasion.
• Targeting m⁶A pathways within the TME presents a promising avenue for novel cancer therapies.
• Further research into m⁶A-TME interactions can lead to improved clinical strategies for cancer treatment.