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 identify body's control switch system to eliminate damaged cells

St. Jude Children's Research Hospital scientists discovered a new mechanism cells use to maximize production of a key protein following DNA damage and demonstrated the potential of small molecules to regulate the process and protect healthy tissue.

14 Sep 2010

Research finds adenovirus impact on cell's suicide program pave way for new cancer therapy

A novel mechanism used by adenovirus to sidestep the cell's suicide program, could go a long way to explain how tumor suppressor genes are silenced in tumor cells and pave the way for a new type of targeted cancer therapy, report researchers at the Salk Institute for Biological Studies in the Aug. 26, 2010 issue of Nature.

26 Aug 2010

AMPK may regulate epigenetic mechanism: Research

AMP-activated protein kinase, or AMPK, is a master regulator protein of metabolism that is conserved from yeast to humans. When a cell is low on fuel, AMPK shuts down processes that use energy and turns on processes that produce energy.Biologists have been studying how AMPK works for several decades and know that once it is activated, AMPK turns on a large number of genes by passing the "make more energy" message through numerous signaling cascades in the cell. What was not known, until now, was that AMPK also works via an epigenetic mechanism to slow down or stop cell growth.

17 Jul 2010

Scientists explain mechanism behind acute myeloid leukemia

New research by scientists at Cold Spring Harbor Laboratory (CSHL) has illuminated in fine detail one of the genetic paths that leads to a particularly aggressive form of leukemia.

2 Jul 2010

Study demonstrates p53 protein becomes activated during gamete formation

Protein p53 is known as the guardian of the genome since it is basic for the genome's integrity by preventing the accumulation of mutations originating either by the cell's own mechanisms or by the action of external agents.

11 Jun 2010

Study identifies mechanism that interrupts normal p53 gene function leading to tumor development

The p53 gene has been a well-documented player in the prevention of tumors. It is considered the most frequently mutated gene in human tumors with more than half harboring p53 mutations (Bennett et al., 1999). These mutations often can be caused by disruption in normal p53 function.

11 Jun 2010

Ascenta Therapeutics, sanofi-aventis sign global licensing agreement for cancer drug candidates

Ascenta Therapeutics announced today the signing of a global collaboration and licensing agreement with sanofi-aventis covering several early-stage agents being investigated for their potential to restore tumor cell apoptosis (programmed cell death). These orally-active, small-molecule drug candidates inhibit the interaction between HDM2 (Human Double Minute 2) and p53, removing a block to normal p53 tumor suppressor function and potentially enhancing cancer control and treatment.

4 Jun 2010

New p53 knockout rat model improves timelines for carcinogenicity screening

Sigma Life Science, the innovative biological products and services brand of Sigma-Aldrich, today introduced the world's first p53 'knockout' rat model, an important development that is expected to, due to the rat's closer physiological and metabolic similarity to humans, significantly improve timelines for carcinogenicity screening and reduce time to market for therapeutics.

19 Apr 2010

Gene defect promotes aggressive forms of ovarian cancer

CANCER RESEARCH UK scientists have discovered how mistakes in a key gene drive the early stages of aggressive ovarian cancers. This could improve diagnosis of aggressive forms of the disease and lead to new treatments, according to a study published in the Journal of Pathology this month.

15 Apr 2010

Brain stem cells in subventricular zone characterized by transcription factor Protein Tlx

The "cradle" of new neurons in the adult brain is well known. It is what is called the subventricular zone, a tissue structure lining the lateral ventricles. This is where neural or brain stem cells reside, which are responsible for generating new neurons if needed. For many years now, the subventricular zone has been suspected to be the origin of specific malignant brain tumors called gliomas, the most deadly type of which is glioblastoma.

2 Apr 2010

Roche Molecular Systems, Merck Sharp & Dohme announce cancer therapeutics collaboration

Roche Molecular Systems, Inc. announced today a research collaboration with Merck Sharp & Dohme Corp. (a subsidiary of Merck & Co., Inc.) providing Merck access to Roche's developmental microarray-based AmpliChip p53 Test, which is designed to detect mutations in the tumor suppressor gene p53. By identifying cancers that harbor a dysfunctional p53 gene, the companies aim to achieve better treatment outcomes in cancer patients by determining which patients are most likely to respond to certain investigational therapeutic candidates.

18 Feb 2010

Cancer Research UK scientists named on New Year's Honours list

Several of Cancer Research UK's scientists have been named on this year's New Year's Honours list, as has the government's National Cancer Director and a long-term supporter of the charity.

9 Jan 2010

Champions Biotechnology and Ramot establish licensing agreement

Champions Biotechnology, Inc., a U.S. Oncology drug development company with a predictive preclinical platform aimed at accelerating the development and enhancing the value of oncology drugs, has established an exclusive licensing agreement with Ramot at Tel Aviv University Ltd., Tel Aviv University's wholly owned technology transfer company.

2 Dec 2009

Activating TAp63 protein, a viable anti-cancer strategy

Oncologists have had their hands tied because more than half of all human cancers have mutations that disable a protein called p53. As a critical anti-cancer watchdog, p53 masterminds several cancer-fighting operations within cells. When cells lose p53, tumors grow aggressively and often cannot be treated.

10 Nov 2009

Champions Biotechnology obtains global rights to Tel Aviv University's TAR-1 compound

Champions Biotechnology, Inc., an oncology drug development company with a predictive preclinical platform aimed at accelerating the development and enhancing the value of oncology drugs, has established an exclusive licensing agreement with Ramot at Tel Aviv University Ltd., Tel Aviv University's wholly owned technology transfer company.

27 Oct 2009

Estrogen can reduce stroke damage by inactivating a tumor-suppressing protein

Estrogen can halt stroke damage by inactivating a tumor-suppressing protein known to prevent many cancers, Medical College of Georgia researchers say.

17 Jul 2009

Dramatic drop in deaths from most common cancers

The death toll from three of the UK's most common cancers has dropped to its lowest level for almost 40 years* - according to new figures released by Cancer Research UK.

12 Jul 2009

Discovery of potent metastasis inhibitor

Researchers at Children's Hospital Boston have isolated a potent inhibitor of tumor metastasis made by tumor cells, one that could potentially be harnessed as a cancer treatment.

23 Jun 2009

Study gives clues to how ultra-rare adrenocortical cancer forms

At the ends of chromosome are special pieces of DNA called telomeres. Think of it as the little tip that caps off a shoelace. The telomeres send signals to the cells to let them know it's the end point, not a break that should be repaired.

4 Jun 2009

Glioblastoma may originate in neural stem cells

University of Michigan scientists have found that a deficiency in a key tumor suppressor gene in the brain leads to the most common type of adult brain cancer. The study, conducted in mice that mimic human cancer, points the way to more effective future treatments and a way to screen for the disease early.

1 Jun 2009