Role of MTH1 in oxidative stress and therapeutic targeting of cancer

Area of Science:

• Biochemistry
• Molecular Biology
• Oncology

Background:

• Cancer cells exhibit elevated reactive oxygen species (ROS) levels crucial for proliferation.
• Cancer cells activate antioxidant defenses, including MTH1 (NUDT1), to mitigate ROS-induced oxidative stress and DNA damage.
• Elevated MTH1 expression is observed in numerous cancers, highlighting its role in tumor survival and progression.

Purpose of the Study:

• To review the therapeutic potential of MTH1 as a cancer treatment target.
• To provide insights into MTH1's structure, function, and role in cancer progression and oxidative stress management.
• To discuss the development and effectiveness of MTH1 inhibitors for cancer therapy.

Main Methods:

• Literature review of MTH1's role in cancer biology.
• Analysis of MTH1's structure and enzymatic function.
• Survey of existing MTH1 inhibitors and their mechanisms of action.

Main Results:

• MTH1 prevents the incorporation of oxidized nucleotides into DNA, protecting cancer cells from oxidative damage.
• Targeted MTH1 inhibition induces DNA damage and cell death in cancer cells by exploiting their high ROS levels.
• MTH1 inhibitors show variable effectiveness, necessitating further research for optimal therapeutic strategies.

Conclusions:

• MTH1 is a promising therapeutic target for cancer treatment due to its critical role in cancer cell survival.
• Inhibiting MTH1 offers a selective approach to cancer therapy, with normal cells being less reliant on this pathway.
• Further research into MTH1 inhibitors is needed to enhance their efficacy and clinical application in cancer prevention and treatment.