Noncanonical roles of p53 in cancer stemness and their implications in sarcomas

Area of Science:

• Oncology
• Molecular Biology
• Stem Cell Biology

Background:

• The tumor suppressor p53, known as the "guardian of the genome", is frequently impaired in human cancers.
• Emerging evidence highlights p53's noncanonical roles in regulating stemness, including differentiation and cancer stem cell (CSC) inhibition.
• Dysregulation of p53 family proteins is common in sarcomas and linked to poor patient outcomes.

Purpose of the Study:

• To review the noncanonical roles of p53 in sarcoma initiation and progression.
• To summarize recent findings on aberrant p53 function in sarcoma development and stemness.
• To explore therapeutic strategies targeting p53 for anti-CSC approaches in refractory sarcomas.

Main Methods:

• Literature review of recent findings on p53, stemness, and sarcomas.
• Analysis of studies investigating p53 family protein dysregulation in sarcoma.
• Examination of research on mesenchymal stem cell differentiation and p53 activity.

Main Results:

• Impaired p53 function is implicated in sarcoma development and progression.
• Loss of wild-type p53 activity hinders mesenchymal stem cell differentiation, promoting aggressive sarcomas.
• Aberrant p53 contributes to cancer stemness, leading to therapy resistance.

Conclusions:

• Aberrant p53 plays a critical role in sarcoma initiation, progression, and stemness.
• Restoring normal p53 activity is a potential therapeutic strategy against CSCs in sarcomas.
• Targeting p53 offers a promising avenue for treating refractory sarcomas.