January 22, 2013
- HPV infection in women
- The Americans have chosen for anti-tobacco propaganda the most terrible pictures
- World Day for children with cancer
- An unusual program against smoking
Scientists claim that the closer to the discovery for the treatment of
cancer
. Recently, researchers from Cambridge reported that they were able to crack the genetic code of cancer cells. It was found that cancer cells are present in the molecule doubled
DNA
. In the course of studying this phenomenon, scientists have suggested that it is active in the formation of defective DNA chains and is cause of cancer cells in the body. As is known, normal DNA molecule is a helix, which consists of two chains. However, in the study of cancer cells, scientists have identified the presence of molecules which are composed of four chains. In the normal state like DNA structure is formed immediately before the division of a molecule into two. But sometimes such division never occurs, whereby the DNA molecule and remain with four chains. Scientists have named this type of molecule
G-quadruplex
. British geneticists argue that this discovery is an important step towards the creation of a safe and effective cure for cancer diseases.
As suggested by genetics, such failures in the division of DNA molecules is due not only to the formation of the human cancer cells, but also some of their features. For example, we are talking about the fact that immunity a person not subject to attacks such stand and recognize them as their own.
As the study, G-quadruplexes are actually contained in malignant cells. At the same time, scientists who study the immune system, indicate that there are antibodies Which can recognize and attack cells containing G-quadruplex genes. Consequently, in the evolution of the human body have to develop methodologies to combat such phenomena.
If scientists can find the feature that distinguishes healthy cells from the G-quadruplex of cancer, such finding could be decisive in the creation of a drug that can effectively deal with oncological diseases. This is a means of not destroying healthy cells.
At this stage of research, scientists are working to identify the factor that affects the appearance of the body G-quadruplex. They suggest that influence this process can be high maintenance guanine . This is one of four substances, which form the basis of the DNA helix.