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Wednesday, August 17, 2011

Researchers Bring Cancer Cells Back In Check

Researchers in the College of Nottingham have introduced cancer cells back under normal control -- by reactivating their cancer suppressor genes. The invention could form a effective new technology platform for treatment of cancer of the breast along with other cancer.
Cancer of the breast is identified within 1.4 million women around the world each year, with 500, 000 dying in the disease. A standard reason for cancer happens when cells are changed or mutated and also the body's tumor suppressor genes are turned off.
Research, released within the journal Molecular Cancer, discloses how Dr Cinzia Allegrucci in the School of Veterinary Science and Medicine and Dr Andrew Manley within the Center for Genetics and Genomics reactivated tumor suppressor genes and stopped cancer from growing by dealing with all of them with Axolotl oocyte extract. After two months there is still no proof of tumor.
Cancer occur once the systems that control normal cell division are mutated. The entire process of cell division is controlled by specific genes which are switched "on" or "off" based on their function. One of the most important of those genes are tumor suppressor genes. These genes repress the introduction of cancer and normally behave as a control reason for the cell division cycle. Therefore, the switching from tumor suppressor genes is a very common reason for cancer, including cancer of the breast.
Dr Allegrucci, a lecturer in molecular genetics and cell biology, stated: "The on/off switch in genes is controlled through the modification of proteins which are certain to the DNA inside a cell -- so known as epigenetic modifications. Tumor suppressor genes in several breast cancer are turned off by epigenetic marks, the underlying reason for tumours. We searched for to reverse this method, initiating the tumor suppressor genes, in hope of preventing cancerous cell divisions."
Dr Manley stated: "To get this done we used novel technology that utilizes the eggs from the axolotl salamander. Through the years Dr Johnson's lab has proven that humans developed from creatures that carefully resemble axolotls, and due to this the proteins in axolotls are much like individuals in humans. Axolotl oocytes -- what are eggs just before ovulation -- are full of molecules which have very effective epigenetic modifying activity. Formerly Johnson's lab demonstrated that extracts prepared from all of these oocytes have effective chance to change epigenetic marks about the DNA of human cells.
And, inside a breakthrough, they demonstrated you should use oocytes in the ovary, if the oocytes are ovulated these activities are lost. We believed that by dealing with cancer cells with extracts produced from axolotl oocytes we're able to turn back epigenetic marks on tumor suppressor genes, leading to these genes to reboot, and therefore preventing the cancerous cell growth."
The identification from the proteins accountable for this tumor curing activity in axolotl oocytes is really a major goal of future research that could form a effective new technology platform for treatment of breast cancer, along with other tissue.


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