General

P53 research

What is the role of the p53 gene?

It does this remains unclear, although the p53 gene is vital for tumor suppression.

Upon genotoxic or oncogenic tests, increased p53 activity causes uncontrollable cell cycle arrest, senescence or apoptosis.

The 3 cornerstones of those so-called triumvirate.

Therefore, it’s long been believed that p53 inhibits tumorigenesis by counteracting cell survival or proliferation.

Several clarified mice imply without activating these three answers that p53 can suppress tumorigenesis.

As a significant mechanism for tumor reduction, these mice stage to p53to’s capability stop the Warburg effect, which would be to soften glycolysis and boost respiration.

Collectively, these”conservative” actions of p53 may protect against tumor initiation by encouraging and maintaining a typical nitric oxide and thus below the”daily” tumor suppression by p53 in many cells. Destructive activities resulting in apoptosis or senescence and elicited by p53 levels supply a shield against transformed or partly cells.

This scenario, although rare during life, is customary in configurations, which might explain the high number of information.


Recent results suggest that this triumvirate isn’t always required. An analysis of the data indicates that the”conservative” acts of p53, particularly that the inhibition of the Warburg effect along with the antioxidant action, automatically linked and quite connected with a minimal expression of p53, stop”every day” the tumor transformation of normal cells. When this barrier is triggered, the acts of p53, resulting in senescence or apoptosis and actuated by its expression.

Data reveal the use of the p53 1 receptor in tumor reduction.

In vitro, cell immortalization is promoted by inactivation of p53. Disruption of p53 function is the most frequent abnormality. A replica of p53’s mutation is associated.

In tumors of individuals that have endured a zero p53 allele, another (ordinary ) allele is lost.

In mice, homozygous or perhaps (to a lesser degree ) heterozygous invalidation of p53 contributes to an remarkable acceleration of the start of tumors.

The growth of the mice is nevertheless only marginally influenced, even when fertility of these females is diminished. For the person himself, the use of p53 appears to function as tumor suppression.