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Tag: "cancerous" at biology news

Inflammation may play role in metastasis of prostate cancer

...indings suggest that promoting inflammation of the cancerous tissue, for instance, by performing prostate biopsies, may, ironically, hasten progression of metastasis," said Karin. "We have shown that proteins produced by inflammatory cells are the 'smoking gun' behind prostate cancer metastasis. The next ste...

New test for most virulent HPV strains under study

...men infected with type 18 had a 15 percent risk of cancerous or pre-cancerous changes after 10 years, those with type 16 had a 20 percent increased risk while those with the 11 other strains had a collective risk of 1-2 percent. “Clearly, there is a big difference between HPV types 16 and 18 and all the oth...

Targeting tumors the natural way

...indicating this strategy has the potential to kill cancerous and healthy cells indiscriminately. "This study ...ne that's found in significantly higher numbers on cancerous cells than on normal ones." ...

CSHL research ties harmless viruses to cancer

...ebnik. According to this model, cells can be made cancerous by viruses that fuse cells. Fusion abruptly unites two or three cells under the same membrane, a change that triggers massive CIN and creates diverse cells whose properties change over time. The researchers found that some of these cells can become c...

Light-based probe 'sees' early cancers in first tests on human tissue

...onal biopsy procedure, making it less likely for a cancerous lesion to escape detection. Wax and his former graduate student John Pyhtila reported in the March 2007 issue of Gastrointestinal Endoscopy that their fiber-optic device reliably differentiated between healthy and precancerous digestive tissue tak...

Cryoablation -- A new treatment option for some kidney tumor patients

...an the traditional radical nephrectomy (removal of cancerous kidney) for the treatment of small tumors, and percutaneous cryoablation is now on the list. With the incidence of kidney cancer steadily increasing over the last 20 years, and the American Cancer Society predicting nearly 52,000 people will be diag...

Widely used iron nanoparticles exhibit toxic effects on neuronal cells

...umor. Magnetic nanoparticles designed to attach to cancerous tissue can also be made to heat up by using a remote, alternating magnetic field, thereby selectively killing cancer cells in a process called magnetic hyperthermia. Many researchers throughout the world are also studying the use of iron-containi...

St. Jude announces breakthrough in eye cancer treatment

...dy rids itself of abnormal cells that might become cancerous or cause other problems. Until now, retinoblastoma experts thought that a mechanism called the p53 pathway triggered apoptosis in other types of cancer cells, but not in retinoblastoma. However, the St. Jude team proved not only that the p53 pathwa...

T-ray breakthrough could make detecting disease far easier

...useful in applications like endoscopic probing for cancerous cells or explosive detection. "This is a significant development that would allow unprecedented accuracy in studying tiny objects and sensing chemicals using T-rays" said Dr Stefan Maier, of the University of Bath's Department of Physics, who le...

Signal protein shows promise for blocking tumor promoters in skin cells

...eased activity of these kinases is associated with cancerous skin lesions. Src kinase proteins act like messengers, sending signals that control cellular growth. Found just inside the cell membrane, they conduct signals from cell surface receptors to the proteins that promote growth. Src kinases can be act...

Natural anti-viral enzyme helps keep cancer cells alive, researchers find

...esponse is stimulated but was always active in the cancerous cells they studied. When they blocked the function of TBK-1 in both the cancerous and healthy cells, cancer cells died while healthy cells survived. A German research team has stud...

New sunscreen ingredient to heal sunburn and help prevent skin cancer

...NA damage that can convert healthy skin cells into cancerous ones." ...

Inheritance outside DNA

...ring the DNA. Abnormal methylation patterns in cancerous cells were discovered more than 20 years ago. Yet tumor cells have so many things wrong with them, including methylation abnormalities, that a precise cause-and-effect relationship between cancer and epigenetic alterations has been difficult to pin d...

U-M researchers use nanoparticles to target brain cancer

...th iron oxide into nanoparticles that would target cancerous brain tumors. Photofrin is a type of photodynamic therapy, in which the drug is drawn through the blood stream to tumor cells; a special type of laser light activates the drug to attack the tumor. Iron oxide is a contrast agent used to enhance magnet...

Two central mysteries in genome inheritance solved at UCSD

...of this connection could stop the proliferation of cancerous cells, they didn't know how the connection itself... ? a situation that is dangerous as it can promote cancerous transformation," said Desai. Cells avoid such a fate by detecting errors in attachment to the spin...

World's smallest cancer detection device

...a next-generation microchip that, when placed in a cancerous mass, can gather information on the presence of metastatic cells that would demand more aggressive cancer therapy. "The NCI has placed a very high priority on understanding the 'dialogue' in tumor microenvironments that appears crucial for causing...

Intrinsic eye protein halts angiogenesis

...blood vessel growth, is what propels the growth of cancerous tumors and blinding conditions like macular degeneration. Because healthy corneas are avascular (free of blood vessels) they have long been the testing grounds for anti-angiogenesis drugs intended to treat conditions in other areas of the body. The...

New target for cancer therapy identified

...lomerase also plays a key role in the formation of cancerous tumours. "It's the best indicator of cancer ?85 per cent better than any other tumour marker," Associate Professor Liu said. "What's more, telomerase is not associated with benign tumours; it's a marker for malignant tumours only. "If we can control...

Cancer stem cells linked to radiation resistance

...ressive treatments can destroy the majority of the cancerous cells, a small fraction of them remain and often regenerate into even larger masses of tumor cells. Until recently, scientists knew little about what made these resistant cells different from those that succumb to radiation treatment. It was clear...

Elasticity imaging identifies cancers and reduces breast biopsies

...ity imaging, researchers correctly identified both cancerous and harmless lesions in nearly all of the cases studied. The findings were presented today at the annual meeting of the Radiological Society of North America (RSNA). “In our work, elasticity imaging has been found to have high specificity,?said Rich...

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