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Tumors

— Health & Wellbeing

Scientists destroy tumors in mice using light therapy

Besides surgery, chemotherapy and radiation are the foundation of modern day cancer treatment. Although effective, these therapies often have debilitating and damaging side effects. But scientists at the National Cancer Institute in Bethesda, Maryland have been experimenting with a new form of therapy using infrared light to kill cancer cells and shrink tumors without damaging healthy tissue. Read More
— Health & Wellbeing

LED device could aid in cancer treatment

We’ve heard of surgeons using a SpectroPen during the tumor removal surgeries, but now Californian scientists are shedding light on cancer, literally, in the hopes to find a new cure for skin cancer. The team of scientists from the University of California, Irvine are currently developing new techniques to image cancerous lesions using LEDs (light emitting diodes) with the hope of then being able to treat skin cancer using photodynamic therapy (PDT). Read More
— Medical

SpectroPen shines a light on tumors in real time

Statistics indicate that complete removal, or resection, of a tumor is the single most important predictor of patient survival for those with solid tumors. So, unsurprisingly, the first thing most patients want to know after surgery is whether the surgeon got everything. A new hand-held device called the SpectroPen could help surgeons provide a more definite and desirable answer by allowing them to see the edges of tumors in human patients in real time during surgery. Read More
— Medical

Genetically engineered immune cells watched in real-time as they kill cancer

One of the main problems with cancer cells is that the body's immune system generally doesn’t recognize them as enemies. By using a crippled HIV-like virus as a vehicle to arm lymphocytes with T-cell receptors, researchers have been able to genetically engineer a well-armed battalion of tumor-seeking immune system cells. By also inserting a reporter gene, which glows “hot” during positron emission tomography (PET) scanning, the researchers were able to watch in real time as these "special forces" traveled throughout the body to locate and attack dangerous melanomas. Read More
— Medical

Golden nanocages to put the heat on cancer cells

Cancer is a disease whose treatments are notoriously indiscriminate and nonspecific. Researchers have been searching for a highly targeted medical treatment that attacks cancer cells but leaves healthy tissue alone. A team of scientists at Washington University in St. Louis (WUSTL) is working on gold nanocages that, when injected, selectively accumulate in tumors. When the tumors are later bathed in laser light, the surrounding tissue is barely warmed, but the nanocages convert light to heat, killing the malignant cells. Read More
— Health & Wellbeing

Magnetic nanotags detect cancer much earlier than current methods

Extremely sensitive nanosensor chips are being developed by Stanford University researchers in an attempt to detect the early signs of cancer, called biomarkers, in humans. The researchers say their sensor is around 1,000 times more sensitive than current technology and is accurate regardless of which bodily fluid is being analyzed. It can also detect biomarker proteins over a range of concentrations three times broader than any existing method. It is forecast that earlier detection of cancer biomarkers will lead to improved survival rates among cancer sufferers. Read More
— Health & Wellbeing

Sugar-coating nanoparticles to tempt cancer cells brings dual benefits

Researchers believe nanoparticles hold the promise of battling cancer without the damaging side effects of chemotherapy or radiation treatment. They have discovered that coating minuscule balls of iron oxide with sugar molecules not only makes them particularly attractive to resource-hungry cancer cells, it also makes them more effective by allowing them to get close to each other, but not too close to render treatment ineffective. Read More
— Science

Treating tumors by blasting nanotubes with a laser

Current heat treatments for human tumors, such as radiofrequency, have shown promising results over the last couple of decades, even though they apply only a single-point of heat to the tumor. However, a new technique could prove much more effective by using nanotubes to apply heat throughout the tumor. Scientists found that by injecting the man-made, microscopic carbon tubes into tumors and heating them with a quick, 30-second zap of a laser, they were able to effectively kill kidney tumors in nearly 80 percent of mice. Read More
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