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.

Study of placenta unexpectedly leads to cancer gene

University of Rochester Medical Center scientists discovered a gene mutation that impairs the placenta and also is influential in cancer development, according to a study published online December 16, 2008, in the journal PLoS (Public Library of Science) Biology.

16 Dec 2008

Selenium may protect from high risk-bladder cancer

A study published in the December issue of Cancer Prevention Research, a journal of the American Association for Cancer Research, suggests that selenium, a trace mineral found in grains, nuts and meats, may aid in the prevention of high-risk bladder cancer.

8 Dec 2008

New insights into cellular senescence

Scientists have identified a molecular cause behind the ravages of old age and in doing so have also shown how a natural process for fighting cancer in younger persons can actually promote cancer in older individuals.

3 Dec 2008

Researchers find that when cells shut down they also spew proteins into their surrounding environment

Cells shut down and stop dividing when their DNA is damaged, in a process known as cellular senescence, so as to prevent damaged DNA from leading to unregulated cell division and therefore cancer.

1 Dec 2008

New insight into the response of human skin to radiation

Scientists have new insight into the response of human skin to radiation and what drives the most aggressive and deadly form of skin cancer.

20 Nov 2008

Does HBV infection induce acute cellular DNA damage?

Eukaryotic cells employ multiple strategies of checkpoint signaling and DNA repair mechanisms to monitor and repair damaged DNA.

11 Nov 2008

Genetically modified tomatoes rich in anthocyanins

Researchers from the John Innes Centre in Norwich, Great Britain, in collaboration with other European centres participating to the FLORA project, have obtained genetically modified tomatoes rich in anthocyanins, a category of antioxidants belonging to the class of flavonoids. These tomatoes, added to the diet of cancer-prone mice, showed a significant protective effect by extending the mice lifespan. The research has been published in the 26 October issue of Nature Biotechnology.

26 Oct 2008

Design of a compound that stabilizes the main natural suppressor of tumours

An interdisciplinary team of researchers, headed by Ernest Giralt at the Institute for Research in Biomedicine (IRB Barcelona) and Javier de Mendoza at the "Institut Catala d'Investigaciió Quimica" (ICIQ, Tarragona), have discovered a substance with the capacity to maintain protein p53 stable even when it presents certain mutations that promote the appearance of cancer.

14 Oct 2008

Researchers find multiple cancer genes cooperate to cause malignant cell transformation

Pinpointing new targets for cancer treatments is as difficult as finding a needle in a haystack, yet a University of Rochester team has discovered an entire novel class of genes they believe will lead to a greater understanding of cancer cell function and the next generation of effective and less harmful therapies for patients.

26 May 2008

Research shows protecting p53 from degradation also defends metastasis-promoter

Efforts to protect the tumor-suppressor p53 could just as easily shelter a mutant version of the protein, causing cancer cells to thrive and spread rather than die, according to research by scientists at The University of Texas M. D. Anderson Cancer Center reported in the current issue of the journal Genes and Development.

22 May 2008

New prognostic markers for gastric cancer patients

In standard clinical settings, DNA microarrays are currently unsuitable for routine use. Prognostic classification on formalin-fixed paraffin-embedded tissues is required. In this study, we looked for new molecular markers for identifying the prognosis of gastric cancer patients.

20 May 2008

Study implicates 350 gene regions in cancer development in the mouse

A large genetic study in mice has identified hundreds of genes involved in the development of cancer by examining the DNA of more than 500 lymphomas to find the cancer causing mutations.

15 May 2008

New chemicals shield 'genome guardian'

Cancer Research UK scientists have discovered a potent group of chemicals that protect p53 - a major anti-tumour gene - from destruction, a study published in Cancer Cell* today (Monday) reveals.

6 May 2008

Discovery of tenovins could lead to cancer cure

Scientists in Scotland have discovered a group of chemicals which protect one of the body's most important anti-cancer genes from destruction.

6 May 2008

New study raises questions about prostate cancer therapies targeting insulin-like growth factor receptor

Therapies under development to treat prostate cancer by inhibiting the ability of insulin-like growth factor (IGF-1) to activate its target receptor could have unexpected results especially if a major tumor suppressor gene - p53 - is already compromised, according to new research by investigators at Fred Hutchinson Cancer Research Center.

1 May 2008

Small molecule nutlin-3a activates an important cancer suppressor gene

By activating a cancer suppressor gene, a small molecule called nutlin-3a can block cancer cell division, according to researchers at the National Cancer Institute (NCI), part of the National Institutes of Health.

1 May 2008

Study raises questions about prostate cancer therapies targeting IGF-1

1 May 2008

Blood pressure drugs halt pancreatic cancer cell growth

Researchers at the Kimmel Cancer Center at Thomas Jefferson University in Philadelphia are inching closer to understanding how common blood pressure medications might help prevent the spread of pancreatic cancer.

15 Apr 2008

Soy appears to protect against development of breast cancer

Evidence is growing from animal and human studies that genistein, a potent chemical found in soy, protects against development of breast cancer - but only if consumed during puberty, says a Georgetown University Medical Center researcher in the British Journal of Cancer published online today.

10 Apr 2008