p53 Protein News and Research

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The TP53 is a gene that instructs the cell to produce tumor protein (p53) ; a vital transcription factor and tumor suppressor. P53 is known as the “guardian of the genome” as it helps in regulating the cell cycle and acts as a tumor suppressor.

Researchers uncover new mechanism that p53 protein uses to trigger cell death

Researchers have identified a new mechanism that the tumor suppressor protein p53 uses to trigger cell death via apoptosis and have shown how the process could be harnessed to kill cancer cells. St. Jude Children's Research Hospital scientists led the study, which appears today in the scientific journal Molecular Cell.

31 Jul 2015

Removing accumulated mutant p53 protein regresses tumors, increases cancer survival

Removing accumulated mutant p53 protein from a cancer model showed that tumors regress significantly and survival increases. This finding, by an international team of cancer researchers led by Ute Moll, MD, Professor of Pathology at Stony Brook University School of Medicine, is reported in a paper published advanced online May 25 in Nature.

26 May 2015

UC Davis researchers uncover complex relationship between p53 and Rbm38 proteins

Scientists have long known the p53 protein suppresses tumors. However, a recent animal study by UC Davis researchers has uncovered a complicated relationship between p53 and another protein, Rbm38, highlighting how the body calibrates protein levels. Too much Rbm38 reduces p53 levels, increasing the risk of cancer.

16 Dec 2014

Study sheds new light on well-known mechanism required for immune response

A new study published in the scientific journal Proceedings of the National Academy of Sciences of the United States of America sheds new light on a well-known mechanism required for the immune response. Researchers at the IRCM, led by Tarik Möröy, PhD, identified a protein that controls the activity of the p53 tumour suppressor protein known as the "guardian of the genome".

6 Dec 2014

Researchers discover new function of body's most important tumor-suppressing protein

Researchers at Cold Spring Harbor Laboratory (CSHL) have discovered a new function of the body's most important tumor-suppressing protein. Called p53, this protein has been called "the guardian of the genome."

30 Jul 2014

Study shows inactivation of p53 protein promotes cancer progression

Researchers at the Bellvitge Biomedical Research Institute (IDIBELL) and the University of Barcelona have discovered the interaction between HERC2 proteins with another protein called p53 that is inactivated in more than half of human tumors.

22 Jul 2014

Chemoprevention and colon cancer: an interview with Dr. John Letterio, Case Western Reserve University School of Medicine

The basic idea of cancer chemoprevention is to arrest or reverse the progression of premalignant cells towards full malignancy, using physiological mechanisms that do not kill healthy cells.

16 Jul 2014

St. Jude analysis reveals how protein p53 triggers cancer cells to commit suicide

St. Jude Children's Research Hospital scientists have mapped the structural details of how p53 attaches to its regulatory protein, called BCL-xL, in the cell.

16 May 2014

UAMS receives $1.8M grant to lead new treatments for herpes viruses and cancers

A surprise discovery that could lead to new treatments for herpes viruses that infect more than 90 percent of the world's adult population has led to a $1.8 million grant to the University of Arkansas for Medical Sciences (UAMS) from the National Cancer Institute (NCI) at the National Institutes of Health (NIH).

5 May 2014

Alteration in tumor suppressor gene TP53 plays key role early in development of bone cancer

The St. Jude Children's Research Hospital-Washington University Pediatric Cancer Genome Project found mutations in the tumor suppressor gene TP53 in 90 percent of osteosarcomas, suggesting the alteration plays a key role early in development of the bone cancer.

4 Apr 2014

Researchers discover genetic function that helps "tumor suppressor" genes to prevent cancer

Researchers at Oregon State University have discovered a genetic function that helps one of the most important "tumor suppressor" genes to do its job and prevent cancer.

4 Feb 2014

Studies aim to address urgent need to identify possible new methods for mesothelioma treatment

Mesothelioma is a very aggressive cancer associated with asbestos exposure, which is usually diagnosed in an advanced stage. So far no therapeutic strategy has proven effective against this deadly cancer and the prognosis remains very poor with only few exceptions.

20 Jan 2014

Findings establish gene as critical regulator of lung cancer tumor growth

Scientists from the Florida campus of The Scripps Research Institute (TSRI) have shown that a well-known cancer-causing gene implicated in a number of malignancies plays a far more critical role in non-small cell lung cancer, the most common form of the disease, than previously thought.

30 Aug 2013

p53 and cancer research: an interview with Professor Sir David Lane, Scientific Director of the Ludwig Institute for Cancer Research

P53 is a tumor suppressor gene. The gene encodes for a protein that monitors the state of the cell. If something goes wrong, it stops the cell from dividing or causes the cell to commit suicide. I call it the “guardian of the genome” as it is the molecule that seems to keep cells normal. It is one of our big defenses against cancer.

22 Jul 2013

p53 restoration of function drug candidate: an interview with Dr. Wayne Danter, MD, FRCPC President and CEO of Critical Outcome Technologies

COTI-2 is a computer-designed small molecule that was discovered by our artificial intelligence drug discovery platform called CHEMSAS.

8 Jul 2013

Tumor suppressor p53 inactivation and restoration: an interview with Dr. Xin Lu, Ludwig Institute for Cancer Research

Before we talk about p53, it is important to understand why cancer cells are a problem for the body. Cancer cells multiply recklessly, refuse to die and blithely metastasize to set up shop in places where they don’t belong.

12 Jun 2013

Study suggests possible way to halt cancer development in premalignant cells

Scientists have uncovered a survival mechanism that occurs in breast cells that have just turned premalignant-cells on the cusp between normalcy and cancers-which may lead to new methods of stopping tumors.

24 May 2013

Inherited mutations in p53 gene put people at high risk of developing cancers

The understanding of how a powerful protein called p53 protects against cancer development has been upended by a discovery by Walter and Eliza Hall Institute researchers. More than half of human cancers carry defects in the gene for p53, and almost all other cancers, with a normal p53 gene, carry other defects that somehow impair the function of the p53 protein. Inherited mutations in the p53 gene put people at a very high risk of developing a range of cancers.

10 May 2013

Mechanism of tumor suppressor p53 inactivation described

Cancer cells are a problem for the body because they multiply recklessly, refuse to die and blithely metastasize to set up shop in places where they don’t belong. One protein that keeps healthy cells from behaving this way is a tumor suppressor named p53. This protein stops potentially precancerous cells from dividing and induces suicide in those that are damaged beyond repair. Not surprisingly, p53’s critical function is disrupted in most cancers.

25 Apr 2013

Researchers identify new mechanism in onset of motor neuron diseases

The British astrophysicist Stephen Hawking is likely to be the world's most famous person living with amyotrophic lateral sclerosis (ALS), also known as Lou Gehrig's disease. ALS is a progressive disease affecting motor neurons, nerve cells that control muscle function, and nearly always leads to death.

11 Mar 2013