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Cell Press delivers the news

Cell Press introduces Cell DNA, a free daily news aggregation service covering life sciences topics. Readers can subscribe to receive daily email digests with news summaries and comment on stories.

SourceCell Press·JournalCell·DateNov 12, 2010

Live imaging puts new light on stem cell division

A team of researchers at the University of Oregon has made a groundbreaking discovery about stem cell division, finding that cortical proteins help position a cleavage furrow in the right location. This new mechanism has important implications for understanding how stem cells divide to produce unique cell types.

SourceUniversity of Oregon·JournalNature·DateSep 1, 2010

Repairing spinal cord injury with manipulated neural stem cells

A team of researchers has developed an approach to repairing spinal cord injuries using manipulated neural stem cells. In a mouse model, the cells were combined with valproic acid and resulted in impressive restoration of hind limb function. Further work is needed to determine if this approach can be used in human patients.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateAug 16, 2010

Scientists 'reprogram' mouse fat cells into clinically useful stem cells

Researchers have successfully reprogrammed adult mouse fat cells and neural cells to become induced pluripotent stem cells (iPS) that can differentiate into various cell types. The study demonstrates that adipose tissue-derived cells are the most amenable to reprogramming, making them a promising source for clinical applications.

Work-life balance: Brain stem cells need their rest, too

Researchers have identified a key molecular guard that prevents brain stem cells from proliferating, protecting the brain against excessive cell division. This study highlights the importance of bone morphogenetic factor protein (BMP) signaling for maintaining neural stem cells throughout adulthood.

SourceSalk Institute·JournalCell Stem Cell·DateJul 1, 2010

New 2009 Impact Factors soar for newest Cell Press journals

The 2009 Journal Citation Reports reveals a surge in Impact Factors for Cell Press journals, with Cell Stem Cell and Cell Host and Microbe leading the charge. Cancer Cell also continues to grow, while Molecular Cell sees an impressive 13% increase, demonstrating the growing importance of these publications in the scientific community.

SourceElsevier·JournalCell·DateJun 21, 2010

Immune system helps transplanted stem cells navigate in central nervous system

A UCI study identifies the body's immune system as a key player in navigating transplanted stem cells to injured areas in the central nervous system. Adult neural stem cells were shown to be guided by CXCR-4 receptors and chemokine proteins to specific sites, where they differentiated into oligodendrocytes to repair damaged tissue.

SourceUniversity of California - Irvine·JournalProceedings of the National Academy of Sciences·DateJun 1, 2010

Stem cells use GPS to generate proper nerve cells

Researchers at Linköping University discovered a new function that regulates stem cell production of different types of cells in various parts of the nervous system. The study found that Hox genes, similar to a GPS system, guide stem cells to produce specific nerve cells in certain regions.

SourcePLOS·JournalPLOS Biology·DateMay 11, 2010

Endometrial stem cells restore brain dopamine levels

Researchers successfully transplanted endometrial stem cells into the brains of mice with a Parkinson-like condition, restoring partially dopamine levels. This finding raises the possibility of women serving as their own stem cell donors and banks being established for men and women with Parkinson's disease.

SourceNIH/Eunice Kennedy Shriver National Institute of Child Health and Human Development·JournalJournal of Cellular and Molecular Medicine·DateMay 6, 2010

New nerve cells -- even in old age

Researchers discovered that neuronal stem cells exist in the human brain, even in adulthood, and can form new neurons. Physical activity and pathological stimuli like epileptic seizures reactivate dormant stem cells, promoting the formation of new neurons.

SourceMax-Planck-Gesellschaft·JournalCell Stem Cell·DateMay 6, 2010

Repeated anesthesia can affect childrens ability to learn

A study published in the Journal of Cerebral Blood Flow & Metabolism found that repeated anesthesia can cause a significant decrease in stem cells in the hippocampus, leading to impaired memory and learning in young animals. The researchers believe this effect may be age-related, with younger animals being more susceptible.

SourceUniversity of Gothenburg·JournalJournal of Cerebral Blood Flow & Metabolism·DateMar 7, 2010

New form of stem cell communication rescues diseased neurons

Researchers demonstrate that transplanted stem cells can rescue diseased neurons from death by sending signals through gap junctions, a newly recognized way of cell communication. This mechanism may play a role in both normal development and many diseases, including Huntington's disease and spinal cord injuries.

SourceSanford Burnham Prebys·JournalProceedings of the National Academy of Sciences·DateFeb 1, 2010

Stem cells rescue nerve cells by direct contact

Researchers at Karolinska Institutet have discovered that stem cells can connect with and rescue threatened neurons through direct contact via gap junctions. The findings suggest a new possible treatment approach for brain damage and neurodegenerative diseases.

SourceKarolinska Institutet·JournalProceedings of the National Academy of Sciences·DateFeb 1, 2010

JCI online early table of contents: Nov. 2, 2009

Researchers have identified a molecular mechanism underlying DES-induced male infertility in mice, which may be linked to increased incidence of human reproductive disorders. The study found that neonatal exposure to DES disrupts the protein NR0B2, leading to reduced fertility and protected males against negative effects.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateNov 2, 2009

Genetics of patterning the cerebral cortex

Researchers at Salk Institute discover critical period during which Lhx2 decides progenitors' regional identity, determining the development of distinct cortical regions. This knowledge may help understand neurodegenerative disorders and specify stem cells to repair brain damage.

SourceSalk Institute·JournalNature Neuroscience·DateOct 12, 2009

Release of the Stem Cell Charter

The Canadian Stem Cell Foundation has released a charter that unifies supporters of stem cell research, outlining five principles for advancing the field. The charter aims to promote responsible science, protect citizens, and empower the public to speak out on behalf of stem cell research.

Transplanted neurons develop disease-like pathology in Huntington's patients

A recent study found that transplanted neurons develop disease-like pathology in Huntington's patients, raising concerns about the therapeutic potential of cell transplantation therapy. The research suggests new mechanisms involved in the development of the disease and offers a new direction for developing novel therapeutic strategies.

SourceUniversité Laval·JournalProceedings of the National Academy of Sciences·DateJul 20, 2009