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Microsensors offer first look at whether cell mass affects growth rate

University of Illinois researchers developed microsensors that can track individual cells' masses and divisions over time. They found that cells grow faster as they grow heavier, rather than at a fixed rate throughout the cell cycle. The sensors also allow for imaging and tracking of cellular processes in conjunction with changes in mass.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalProceedings of the National Academy of Sciences·DateNov 15, 2010

Soy may stop prostate cancer spread

Researchers at Northwestern University have found that a soy-based drug can prevent the movement of prostate cancer cells from the prostate to the rest of the body. The experimental treatment, genistein, has shown beneficial effects on human subjects with localized prostate cancer in a recent phase II study.

How do we kill rogue cells?

A team of researchers has identified how the protein perforin kills rogue cells, which could lead to new treatments for cancer, malaria, and diabetes. The study reveals that perforin assembles to punch holes in cell membranes, allowing toxic enzymes to destroy infected cells.

SourceScience in Public·JournalNature·DateOct 31, 2010

'Reaper' protein strikes at mitochondria to kill cells

Researchers found that the Reaper protein triggers apoptosis by interfering with inhibitor of apoptosis proteins and delivering its death sentence to the mitochondria. By targeting the protein to the mitochondrial membrane, it can be made more effective at killing cells, providing a potential new approach for cancer treatments.

SourceRockefeller University·JournalJournal of Cell Biology·DateOct 20, 2010

'Gold' fish thrive, cancers die

Researchers at Rice University used gold nanoparticles with laser pulses to create tiny vapor bubbles that selectively destroyed cancer cells in zebra fish implanted with live human prostate cancer cells. This technique avoids damaging healthy tissue and demonstrates a new approach to cancer treatment.

SourceRice University·JournalBiomaterials·DateSep 27, 2010

Researchers to activate anti-cancer gene

CDX2 is an identity gene that tells a cell it is in the epithelial tissue of the intestine, enabling it to perform its job correctly. Cancer cells deactivate this gene, leading researchers to identify five anti-cancer genes and discover CDX2's role in suppressing colon cancer.

SourceUniversity of Copenhagen·JournalJournal of Biological Chemistry·DateAug 30, 2010

Researchers study relationship of oral cancers and periodontal disease

A recent study suggests that Porphyromonas gingivalis (P.g.) infection may contribute to the chronicity of inflammatory disorders leading to oral cancers. The research found that P.g. induces expression of immune-regulating receptors B7-H1 and B7-DC in squamous cell carcinoma cells, facilitating immune evasion.

Technique enables precise control of protein activity in living cells

Engineered allosteric regulation provides precise control of kinase activity in living cells, enabling scientists to understand cellular processes and dissect the functions of kinases. This new method has exciting applications in basic research and promises to open doors to new scientific insights into cancer and other human diseases.

SourceUniversity of North Carolina Health Care·JournalNature Biotechnology·DateJun 27, 2010

Off-the-shelf cancer detection

Rice University researchers developed a method to use an off-the-shelf digital camera to distinguish cancerous cells from healthy ones. The device uses fluorescent dyes and fiber-optic cables to capture images of tissues, allowing doctors to identify abnormal cells quickly and accurately.

SourceRice University·JournalPLOS ONE·DateJun 24, 2010

Turning a painkiller into a cancer killer

Researchers at Sanford-Burnham Medical Research Institute have discovered a new application for the painkiller Sulindac as a potential anti-cancer treatment. By binding to the truncated form of nuclear receptor RXRα, Sulindac shuts down cancer cell growth and initiates cell death.

SourceSanford Burnham Prebys·JournalCancer Cell·DateJun 14, 2010

Flower power: Marking winners and losers

A new study reveals that a protein called Flower marks weaker cells for elimination, allowing fitter neighbors to dominate. This process of cell competition may provide insight into pathological conditions like cancer and aging.

SourceCell Press·JournalDevelopmental Cell·DateJun 14, 2010

No relaxing for cancer cells

Cancer cells form clusters of centrosomes to distribute chromosomes correctly, a trick that can be targeted for destroying them. Researchers identified 82 genes responsible for this survival strategy and found that silencing specific proteins disrupts tension in spindle fibers, leading to cancer cell death.

SourceHelmholtz Association·JournalScience Translational Medicine·DateJun 1, 2010