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The immune system's guard against cancer

Scientists discovered that beta-interferon inhibits tumor growth by blocking its connection to the blood circulatory system and reducing the production of growth factors. This effect was seen in mice where tumors grew slower and formed fewer metastases, highlighting a new potential target for cancer therapy.

SourceHelmholtz Association·JournalJournal of Clinical Investigation·DateApr 6, 2010

Your fat may help you heal

A Rice University researcher has developed a natural extracellular matrix from adipose cells that supports the growth of living cells into tissues. The substance, called Adipogel, has been proven effective for growing liver cells and may be used to repair damaged organs in the future.

SourceRice University·JournalThe FASEB Journal·DateMar 25, 2010

Tumor suppressor p53 prevents cancer progression in cells with missegregated chromosomes

Researchers found that tumor suppressor p53 limits the growth of cells with incorrect numbers of chromosomes and prevents their progression toward cancer. Cells lacking p53 become aneuploid after induced missegregation, indicating that the p53 pathway normally serves to limit the propagation of cells with odd numbers of chromosomes.

SourceRockefeller University Press·JournalJournal of Cell Biology·DateFeb 1, 2010

Antagonistic genes control rice growth

Researchers found that a plant steroid controls the balance between two genes in rice, regulating leaf angle and cell growth. The discovery has important implications for understanding how to manipulate crop growth and yield, and could lead to better engineering of crops to feed a growing population.

SourceCarnegie Institution for Science·JournalThe Plant Cell·DateDec 15, 2009

Johns Hopkins researchers track down protein responsible for chronic rhinosinusitis with polyps

Johns Hopkins researchers found that a protein called vascular endothelial growth factor (VEGF) is responsible for the cell overgrowth in chronic rhinosinusitis with polyps. This discovery gives scientists a new target for treating this form of the disease, which typically resists current treatments.

SourceJohns Hopkins Medicine·JournalAmerican Journal of Respiratory and Critical Care Medicine·DateNov 23, 2009

Canadian scientists uncover a new mechanism regulating fetal growth and neonatal survival

Researchers have identified a critical role for protein kinase Erk3 in fetal growth potential and lung maturation, revealing the loss of this function leads to fetal growth restriction and early neonatal lethality. This finding provides new insights into intrauterine growth restriction and its associated risks.

SourceUniversity of Montreal·JournalProceedings of the National Academy of Sciences·DateSep 16, 2009

Unraveling how cells respond to low oxygen

Researchers at Burnham Institute for Medical Research discovered that the REDD1 protein is degraded under hypoxic conditions, enabling cells to rapidly restore mTOR signaling. This regulation mechanism plays a crucial role in cellular stress response and may be linked to tumor growth in cancer.

SourceSanford Burnham Prebys·JournalEMBO Reports·DateAug 5, 2009

Common infant tumor has a Nox(4)ious requirement

Researchers have identified protein Nox4 as crucial for hemangioma growth and found a potent inhibitor fulvene-5 to substantially inhibit its growth. This discovery suggests targeting Nox4 using fulvene derivatives may attenuate hemangioma growth.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateJul 13, 2009

Shatter-resistant brassicas

Researchers have developed a method to prevent pod shattering in oilseed rape, reducing seed loss by up to 70% and improving harvest efficiency. By controlling hormone production, scientists can seal seeds inside pods, addressing a major issue in farming this high-value crop.

Molecule prompts damaged heart cells to repair themselves after a heart attack

Researchers at UT Southwestern Medical Center found that the protein Thymosin beta-4 initiates migration of heart cells and blood vessel growth after a heart attack, encouraging new growth and repair of damaged heart cells. The molecule affects developmental gene expression as early as 24 hours after systemic injection.

SourceUT Southwestern Medical Center·JournalJournal of Molecular and Cellular Cardiology·DateApr 10, 2009

Magnetic nano-'shepherds' organize cells

Researchers at Duke University have developed an approach using magnetism to manipulate human cells, forming chains that can promote the growth of blood vessels. The iron-containing nanoparticles used by the researchers are suspended within a liquid known as a ferrofluid, allowing them to readily manipulate the chain formation.

SourceDuke University·JournalNano Letters·DateMar 31, 2009

CSHL researchers identify gene that helps plant cells keep communication channels open

Plant cells use microscopic channels called plasmodesmata to communicate and transport nutrients; the GAT1 gene encodes an enzyme that acts as an antioxidant, relieving cellular stress and maintaining flow through these channels. Turning on this gene helps plants prevent excessive callose accumulation and keeps channels open.

SourceCold Spring Harbor Laboratory·JournalProceedings of the National Academy of Sciences·DateFeb 17, 2009

Egg whites solve the 3-D problem

Researchers at Baylor College of Medicine found a solution to the high cost of commercial media for 3D cell cultures using chicken egg whites. The process enables normal and cancer cells to be grown in three dimensions, allowing scientists to study cell signaling and tumor microenvironments.

Discovery of natural compounds that could slow blood vessel growth

Scientists at Johns Hopkins University School of Medicine have identified over 100 human protein fragments that can slow or stop the growth of cells making up new blood vessels. These compounds, known as antiangiogenesis peptides, could lead to treatments for diseases such as cancer, macular degeneration, and rheumatoid arthritis.

SourceJohns Hopkins Medicine·JournalProceedings of the National Academy of Sciences·DateOct 3, 2008

Duke chemists synthesize promising anti-cancer product

Researchers at Duke University have synthesized largazole, a marine algae extract with potential as an anti-cancer agent. The team's efficient synthetic route enables the production of gram-sized quantities, paving the way for further study and potential treatment of various cancers.

SourceDuke University·JournalJournal of the American Chemical Society·DateAug 20, 2008