Mutant p53: One, No One, and One Hundred Thousand.

Area of Science:

• Oncology
• Molecular Biology
• Cancer Genetics

Background:

• Mutated TP53 tumor suppressor gene variants encode mutant p53 proteins.
• These mutant p53 proteins function as oncoproteins, promoting tumor growth and metastasis.
• Missense mutant p53 proteins lose wild-type tumor suppressor activity and gain oncogenic potential.

Purpose of the Study:

• To review studies on mutant p53 gain-of-function (GOF) activities.
• To discuss the advantages and disadvantages of various experimental approaches used to study mutant p53.
• To explore therapeutic strategies for targeting mutant p53 proteins in cancer.

Main Methods:

• Review of existing scientific literature on mutant p53.
• Analysis of experimental approaches for studying mutant p53 gain-of-function.
• Discussion of therapeutic targeting of mutant p53 in human cancers.

Main Results:

• Mutant p53 proteins exhibit diverse transforming abilities in cellular and animal models.
• Evidence suggests common downstream programs activated by different mutant p53 variants.
• Various experimental methods have limitations and advantages in characterizing mutant p53 activities.

Conclusions:

• Mutant p53 proteins are key drivers of oncogenesis with gain-of-function properties.
• Understanding common mutant p53 pathways is crucial for developing effective therapies.
• Targeting mutant p53, individually or collectively, presents promising therapeutic avenues for cancer treatment.