A common point in all human tumors is that they produce an activation of oncogenes, genes that cause cancer and they also cause a loss of function of the protective genes, called anti-oncogenes or tumor suppressor genes. Normally both categories of anticancer and procancer genes are in different regions of our chromosomes.
Example of three colon tumors (up) whose growth was inhibited (down) a molecule of RNA (ribonucleic acid) which acts as identified anti-oncogene.
A study coordinated by Manel Esteller, Director of the program of epigenetics and cancer biology at the Bellvitge Institute for Biomedical Research (IDIBELL), Professor of genetics at the University of Barcelona and ICREA researcher, has discovered the existence of an antitumor molecule that originates within an oncogene. The finding is published this week in the Nature Structural & Molecular Biology journal.
The identified anti-oncogene is along non-coding ribonucleic acid (lncRNA), ie a molecule that does not produce protein itself but is responsible for regulating the expression of other proteins. Specifically, the identified molecule is produced in a cancer-causing gene (SMYD3) as its role in healthy cells is to inhibit pro-cancer action of the oncogene.
If you enter this fragment of ribonucleic acid on cancer cells growing in laboratory or in human tumors implanted in animals for research is able to block cancer growth. "We believe this discovery will be the starting point to find many other oncogenes and anti-oncogenes that coexist in regions of our genome, that when their life together deteriorates, contribute to the development of human tumors," said Dr. Esteller.
Intronic RNAs mediate EZH2 regulation of epigenetic targets. Sònia Guil*, Marta Soler*, Anna Portela*, Jordi Carrère*, Elena Fonalleras*, Antonio Gómez*, Alberto Villanueva* and Manel Esteller*. Nature Structural & Molecular Biology (NSMB), Early Edition, May 21, 2012.
* IDIBELL Researchers
Raül Toran | EurekAlert!
Fine organic particles in the atmosphere are more often solid glass beads than liquid oil droplets
21.04.2017 | Max-Planck-Institut für Chemie
Study overturns seminal research about the developing nervous system
21.04.2017 | University of California - Los Angeles Health Sciences
The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.
Supermassive black holes form some of the most enigmatic phenomena in astrophysics. Their enormous energy output is supposed to be generated by the...
The probability to find a certain number of photons inside a laser pulse usually corresponds to a classical distribution of independent events, the so-called...
Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.
Two-dimensional materials, or 2D materials for short, are extremely versatile, although – or often more precisely because – they are made up of just one or a...
Two researchers at Heidelberg University have developed a model system that enables a better understanding of the processes in a quantum-physical experiment...
Glaciers might seem rather inhospitable environments. However, they are home to a diverse and vibrant microbial community. It’s becoming increasingly clear that they play a bigger role in the carbon cycle than previously thought.
A new study, now published in the journal Nature Geoscience, shows how microbial communities in melting glaciers contribute to the Earth’s carbon cycle, a...
20.04.2017 | Event News
18.04.2017 | Event News
03.04.2017 | Event News
21.04.2017 | Physics and Astronomy
21.04.2017 | Health and Medicine
21.04.2017 | Physics and Astronomy