Targeting the MAPK Pathway in Cancer.

Area of Science:

• Oncology
• Molecular Biology
• Cell Signaling

Background:

• The mitogen-activated protein kinase (MAPK) signaling cascade is vital for cell proliferation, differentiation, and apoptosis.
• Dysregulation of the MAPK pathway can lead to apoptosis evasion, uncontrolled cell growth, and oncogenesis.

Purpose of the Study:

• To review MAPK pathway dysregulation in cancer.
• To discuss therapeutic targets, resistance mechanisms, and novel strategies for MAPK-targeted cancer therapy.

Main Methods:

• This is a narrative review.
• Literature search on MAPK signaling, cancer, therapeutic targets, resistance mechanisms, and ferroptosis.

Main Results:

• MAPK pathway targeting is complex due to context-dependent kinase roles.
• Cancer cells develop chemoresistance via compensatory signaling pathways (JNK, AKT, mTOR).
• Novel strategies include combination therapies, PROTACs, and targeting MAPK-regulated ferroptosis.

Conclusions:

• Effective MAPK-targeted therapies require addressing resistance mechanisms like compensatory signaling and exploiting ferroptosis.
• Emerging therapies must consider pathway crosstalk, tumor microenvironment, and novel regulatory strategies like ferroptosis.