Non-Muscle Myosin II A: Friend or Foe in Cancer?

Area of Science:

• Biochemistry
• Cell Biology
• Molecular Oncology

Background:

• Non-muscle myosin IIA (NM IIA), encoded by the MYH9 gene, is a crucial motor protein involved in fundamental cellular processes.
• NM IIA's functions, including cell adhesion, migration, and shape maintenance, are regulated by phosphorylation.
• Dysregulation of NM IIA is implicated in genetic disorders and various cancers.

Purpose of the Study:

• To review the multifaceted role of NM IIA in tumorigenesis across different cancer types.
• To summarize the signaling pathways, particularly the ROCK-NM IIA pathway, involved in cancer development.
• To explore NM IIA as a potential therapeutic target in oncology.

Main Methods:

• Literature review of studies on NM IIA function in cancer.
• Analysis of signaling networks, including the ROCK-NM IIA pathway.
• Discussion of current and preclinical therapeutic strategies targeting NM IIA.

Main Results:

• NM IIA exhibits a dual role in cancer, functioning as both a tumor suppressor and a promoter of tumorigenesis, resistance, and stemness.
• The ROCK-NM IIA pathway is frequently dysregulated in various solid tumors and leukemia.
• Evidence suggests NM IIA's involvement in melanoma, head and neck squamous cell carcinoma, and other malignancies.

Conclusions:

• NM IIA's complex role in cancer necessitates careful consideration for therapeutic targeting.
• The ROCK-NM IIA pathway represents a promising target for novel cancer therapies.
• Further research into NM IIA-targeting compounds is crucial for clinical translation.