Combining TP53 mutation and isoform has the potential to improve clinical practice

Area of Science:

• Oncology
• Molecular Biology
• Genetics

Background:

• The TP53 tumor suppressor gene encodes for the p53 protein, a critical regulator of cellular responses to stress.
• p53 exists in various isoforms, which can have distinct functions and impact cellular processes differently than the canonical p53 protein.
• Dysregulation of TP53, including mutations and altered isoform expression, is implicated in a wide range of human cancers.

Purpose of the Study:

• To review the clinical significance of assessing both TP53 mutations and their isoforms.
• To summarize the roles of p53 isoforms in cancer development, treatment response, and resistance.
• To highlight the potential of p53 isoforms as prognostic biomarkers and discuss current diagnostic challenges.

Main Methods:

• Literature review of studies investigating TP53 mutations and isoforms in various cancer types.
• Analysis of research on the biological functions of p53 isoforms.
• Examination of data linking p53 isoforms to clinicopathological features and therapeutic outcomes.

Main Results:

• p53 isoforms play significant roles in cancer initiation, progression, and response to therapy.
• TP53 mutations can alter the function of p53 isoforms, affecting their roles in cancer.
• p53 isoforms show promise as prognostic indicators, with their expression correlating with patient outcomes in several tumor types.
• Current methods for identifying TP53 isoforms face diagnostic challenges.

Conclusions:

• Integrating data on TP53 mutations and isoforms is essential for a comprehensive understanding of their clinical impact.
• Improved methods for evaluating TP53 isoforms are needed to enhance their clinical utility.
• Recommendations are provided for better identification and integration of TP53 isoform data in clinical practice.