Navigation Links
A gene that protects against colorectal cancers
Date:12/14/2011

The research team at Lyon has developed an animal model carrying a mutation of the DCC gene. Mice carrying the mutation develop tumours, because this gene can no longer induce the death of the cancer cells. This discovery could lead to the development of a new targeted cancer treatment that aims to reactivate the dying of cancer cells.

The results of this study have been published as a Letter in the 11th December 2011 issue of the journal Nature.

The team led by Patrick Mehlen, Director of the DEVweCAN 'Laboratory of Excellence' at the Lyon Cancer Research Centre (CNRS/Inserm/Centre Lon Brard/Universit Claude Bernard 1), studies the cell death process (apoptosis) and, in particular, the mechanism that makes the cells understand that they should initiate a self-destruction process when they become abnormal. Patrick Mehlen's team suggested that this mechanism could operate via sentinels located on the surface of cells, which examine their environment. The scientists named these sentinels 'dependence receptors'.

The research team focused on this concept of 'dependence receptors'. When a cell receptor is associated with its ligand, the classic message indicates 'all is well', and leads to cell survival. On the other hand, when the receptor is deprived of its ligand, it can send a message leading to cell death. This mechanism is also called 'apoptosis.' When this is applied to cancer research, the absence of ligands could cause the death of cancer cells that proliferate in an anarchic manner.

In this study, Patrick Mehlen's team shows that the DCC gene (Deleted Colorectal Cancer), which codes for a 'dependence receptor', protects the organism from the onset of cancer by causing the death of cells that become cancerous. The researchers used a mouse model where the DCC gene has been genetically modified. The mutation of this dependence receptor prevents the induction of apoptosis. When the DCC gene is eliminated by mutation, the mouse spontaneously develops colon cancer.

'The organism is naturally protected from the development of cancers thanks to the presence of this tumour-suppressing gene. Unfortunately, certain cancer cells escape from this control by blocking this 'dependence receptor' mechanism. That is how we know that the DCC gene is extinguished in most human cancers,' explains Patrick Mehlen.

In the near future, this research work could lead to a new targeted treatment that aims to reactivate the death of the cancer cells to destroy breast cancer, lung cancer, etc. 'Our group has developed several candidate drugs that reactivate the cell death induced by the DCC receptor in animal models, and we hope to be able to carry out human clinical testing of these candidate drugs in three years' time,' concludes Patrick Mehlen.


'/>"/>

Contact: Inserm Presse
presse@inserm.fr
INSERM (Institut national de la sant et de la recherche mdicale)
Source:Eurekalert

Related medicine news :

1. Happiness Protects Your Heart
2. New Insurance Membership Program Protects Washington State Families Against High Cost of Emergency Medical Transports
3. HIV drug that protects a fetus should be avoided for one year after childbirth, researchers say
4. Breastfeeding protects children against peptic ulcer bacterium
5. Bishops Encourage Vigilance that Health Care Legislation Protects Conscience, Does Not Fund Abortion
6. EarPeace Protects Hearing for Thousands at South by Southwest
7. A stress-response system in the ear protects against hearing loss
8. Study Challenges Notion That Moderate Drinking Protects the Heart
9. NIH-funded scientists find 2009 H1N1 pandemic influenza vaccine protects mice from 1918 flu virus
10. New Study Finds HPV Vaccine Protects Against Genital Warts
11. Widely used arthritis pill protects against skin cancer
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/8/2016)... (PRWEB) , ... February 08, 2016 , ... ... offices in Houma, LA, celebrates the beginning of a new charity campaign. As ... assist Court Appointed Special Advocates (CASA). In the belief that children deserve a ...
(Date:2/8/2016)... ... February 08, 2016 , ... If you are feeling that your clothes are ... alone. According to the Center for Disease Control and Prevention (CDC), 34.9% of U.S. ... certain types of cancer, some of the leading causes of preventable death. February ...
(Date:2/8/2016)... ... February 08, 2016 , ... Local insurance agency ... Venice, FL area, has initiated a fundraiser for a two year old little ... days after Christmas. To support this beautiful child who is facing life’s journey ...
(Date:2/8/2016)... ... February 08, 2016 , ... Eating disorders and post-traumatic ... of women and men with eating disorders report a history of trauma, research ... development of an eating disorder. , At the 2016 iaedp Symposium, the ...
(Date:2/8/2016)... ... February 08, 2016 , ... The Association of ... AHCC and the Home Health and Hospice ICD-10 Transition Workgroup are working closely ... coding guidance and clarifications, to address concerns over the use of 'A' as ...
Breaking Medicine News(10 mins):
(Date:2/8/2016)... , Feb. 8, 2016  Echo Therapeutics, ... device company focused on non-invasive continuous glucose ... today announced that it will host a ... 17, 2015 at 9:00 a.m. Eastern Time ... its corporate strategy, advancements in its CGM ...
(Date:2/8/2016)... , Feb. 8, 2016 ... the "Global Skin Protective Equipment Market 2016-2020" ... --> http://www.researchandmarkets.com/research/fqx6nz/global_skin ) has announced the addition ... 2016-2020" report to their offering. ... ) has announced the addition of the ...
(Date:2/8/2016)... , Feb. 8, 2016   HighPoint ... November Research Group (NRG),s pharmacovigilance technology services division.  ... consulting services and an Oracle Argus Specialized partner, ... to Life Sciences companies. --> ... expands HighPoint,s life sciences capabilities and provides a ...
Breaking Medicine Technology: