Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Excess dietary fat accelerates breast cancer by altering the activity of a group of genes

18.10.2004


Breast cancer is the most frequent form of cancer in women around the world. The fact that this cancer is more frequent in the developed world suggests that life style and environmental factors may be involved. Nutritional factors are particularly important, given people’s continual exposure through dietary habits. Among them, dietary fats are the main element involved in breast cancer. Fats do not cause cancer, however some of them, such as animal fats or certain vegetable fats, accelerate the clinical development of the disease, while blue fish and olive oil appear to delay its development.



A research team headed by Dr. Eduard Escrich, lecturer in the Departament de Biologia Cel·lular, de Fisiologia i d’Immunologia at the Universitat Autònoma de Barcelona and head of the Grup Multidisciplinari per a l’Estudi del Càncer de Mama (Multi-disciplinary group on Breast Cancer Studies) has established a specific mechanism by which some of these fats favour the development of breast cancer. According to research, diets rich in the polyunsaturated fatty acids n-6 reduce the expression of a group of four genes, three of which are related to cellular differentiation (a-2u-globulin, VDUP1 and H19) and the fourth of which is a sequence with a totally unknown function (known as EST Rn.32385), thereby accelerating the proliferation of tumours.

The scientists have reached these conclusions from results, obtained using microarrays, that compare the expression of 6,000 genes in breast cancer tumours in animals fed with n-6 fat-rich diets and in animals with low-fat diets. The tumours in the rats with the fat-rich diets proliferated, on average, more than the others, apparently associated with a lesser expression of the four genes. According to the UAB researchers, in an article published in Molecular Carcinogenesis, “this is the first time that the influence of a fat-rich diet on the expression of these genes has been investigated. The discovery opens a new line of research into its implication in changes on the state of cellular differentiation induced by dietary lipids in breast cancer tumours and the degree of malignity of the cancer.


In general, the research carried out by the Grup Multidisciplinari per a l’Estudi del Càncer de Mama aims to establish possible activity of common elements in human diet, beyond the nutritional value, which may permit scientific opinions to be formulated on the health of the population of the risk of disease. It is therefore involved in the field of secondary and especially primary prevention of breast cancer.

Octavi López Coronado | alfa
Further information:
http://www.uab.es

More articles from Life Sciences:

nachricht Kidney tumor: Genetic trigger discovered
18.06.2018 | Julius-Maximilians-Universität Würzburg

nachricht New type of photosynthesis discovered
18.06.2018 | Imperial College London

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: AchemAsia 2019 will take place in Shanghai

Moving into its fourth decade, AchemAsia is setting out for new horizons: The International Expo and Innovation Forum for Sustainable Chemical Production will take place from 21-23 May 2019 in Shanghai, China. With an updated event profile, the eleventh edition focusses on topics that are especially relevant for the Chinese process industry, putting a strong emphasis on sustainability and innovation.

Founded in 1989 as a spin-off of ACHEMA to cater to the needs of China’s then developing industry, AchemAsia has since grown into a platform where the latest...

Im Focus: First real-time test of Li-Fi utilization for the industrial Internet of Things

The BMBF-funded OWICELLS project was successfully completed with a final presentation at the BMW plant in Munich. The presentation demonstrated a Li-Fi communication with a mobile robot, while the robot carried out usual production processes (welding, moving and testing parts) in a 5x5m² production cell. The robust, optical wireless transmission is based on spatial diversity; in other words, data is sent and received simultaneously by several LEDs and several photodiodes. The system can transmit data at more than 100 Mbit/s and five milliseconds latency.

Modern production technologies in the automobile industry must become more flexible in order to fulfil individual customer requirements.

Im Focus: Sharp images with flexible fibers

An international team of scientists has discovered a new way to transfer image information through multimodal fibers with almost no distortion - even if the fiber is bent. The results of the study, to which scientist from the Leibniz-Institute of Photonic Technology Jena (Leibniz IPHT) contributed, were published on 6thJune in the highly-cited journal Physical Review Letters.

Endoscopes allow doctors to see into a patient’s body like through a keyhole. Typically, the images are transmitted via a bundle of several hundreds of optical...

Im Focus: Photoexcited graphene puzzle solved

A boost for graphene-based light detectors

Light detection and control lies at the heart of many modern device applications, such as smartphone cameras. Using graphene as a light-sensitive material for...

Im Focus: Water is not the same as water

Water molecules exist in two different forms with almost identical physical properties. For the first time, researchers have succeeded in separating the two forms to show that they can exhibit different chemical reactivities. These results were reported by researchers from the University of Basel and their colleagues in Hamburg in the scientific journal Nature Communications.

From a chemical perspective, water is a molecule in which a single oxygen atom is linked to two hydrogen atoms. It is less well known that water exists in two...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Munich conference on asteroid detection, tracking and defense

13.06.2018 | Event News

2nd International Baltic Earth Conference in Denmark: “The Baltic Sea region in Transition”

08.06.2018 | Event News

ISEKI_Food 2018: Conference with Holistic View of Food Production

05.06.2018 | Event News

 
Latest News

Novel method for investigating pore geometry in rocks

18.06.2018 | Earth Sciences

Diamond watch components

18.06.2018 | Process Engineering

New type of photosynthesis discovered

18.06.2018 | Life Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>