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Donor T cells change the fate of stem cells in transplantation
When a transplant patient suffers complications such as graft rejection or graft-versus-host disease, physicians attempt to stop the body's immune response by targeting a patient's T cells.   view more (2006-07-13)

Jefferson scientists uncover new clues to how crucial molecular gatekeepers work
One of the biggest mysteries in molecular biology is exactly how ion channels - tiny protein pores through which molecules such as calcium and potassium flow in and out of cells - operate.   view more (2005-10-12)

Cell signaling discovery yields heart disease clues
A pulsing heart cell is giving Oregon Health & Science University researchers insight into how it sends and receives signals, and that's providing clues into how heart disease and other disorders develop.   view more (2005-09-23)

ETH Zurich: Fast and Cheap Detection of Bacteria
Carbohydrates displayed on the surface of cells play critical roles in cell-cell recognition, adhesion, signaling between cells, and as markers for disease progression. Neural cells for instance use carbohydrates to facilitate development and regeneration and viruses recognize carbohydrates to gain... view more (2004-12-17)

Scientists re-engineer a well-known antibiotic to counter drug resistance
The scientists replaced a single atom from the molecular structure of vancomycin aglycon, a glycopeptide antibiotic that attacks the bacteria by inhibiting cell wall synthesis, significantly increasing the drug's spectrum of activity.   view more (2006-02-09)

Hopkins scientists uncover 'tags' that force proteins to cell surface
Johns Hopkins scientists have discovered internal "shipping labels that allow - and perhaps force - hundreds if not thousands of proteins to get to the surface of cells and stay there.   view more (2005-09-23)

Scientists make first step towards growing human lungs for transplant
Scientists have successfully converted human embryonic stem cells into lung cells, taking a first step towards building human lungs for transplantation.   view more (2005-08-23)

Expression of 'Blimp1' gene leads to the discovery of cells responsible for skin's sebaceous gland
Mice may not get zits, but they do have oily skin. This week, new research on mice from Rockefeller University shows how the cells responsible for oil production develop, and uncovers clues about how stem cells renew and differentiate.   view more (2006-08-11)

Markers of brain cell development may help success of stem cell transplants
Four sugar-coated faces made by stem cells as they differentiate into brain cells during development have been identified by scientists.   view more (2005-09-07)

Ghrelin: A player in diabetes but not obesity?
Ghrelin, a hormone long considered a key player in obesity, may instead take a major role in maintaining the balance between insulin and glucose and the development of diabetes.   view more (2006-05-10)

Tool developed to silence genes in specific tissues using RNAi
Researchers at The University of Texas M. D. Anderson Cancer Center say they have jumped a significant hurdle in the use of RNA interference (RNAi), believed by many to be the ultimate tool to both decode the function of individual genes in the human genome and to treat disease.   view more (2006-01-17)

Iron particles and MRI could replace biopsies to track stem cell therapy and deploy stents
In a series of experiments in animals, researchers at Johns Hopkins have successfully used a technique that tracks mesenchymal stem cells via magnetic resonance imaging (MRI) to monitor the progress of the cells in repairing tissue scarred by heart attack.   view more (2005-12-05)

Weizmann Institute scientists discover a molecular security mechanism for keeping mutations in check
Everyone knows mutations - genetic mistakes in DNA, the material of heredity - are bad: The more mutations in the cell's DNA, the higher the risk of cancer developing.   view more (2006-05-05)

Bone marrow may restore cells lost in vision diseases
University of Florida scientists conducting experiments with mice have found evidence that the body naturally replenishes small amounts of cells in the eye essential for healthy vision.   view more (2006-06-09)

Clues to breast cancer hidden inside stem cells
Stem cells and how to boost them is hot on the research agenda. But stopping them could be critical too, as evidence implicating stem cells in cancer is mounting.   view more (2006-04-25)

USC researchers track down the stem cells that create feathers
The stem cells that produce bird feathers have been visualized and analyzed for the first time, signifying the initial step in a scientific journey that may ultimately shed light on human organ regeneration.   view more (2005-12-15)

Faulty cell cycle checkpoints linked to lung cancer risk in African-Americans
Faulty cell cycle "checkpoints" that fail to respond to DNA damage effectively may contribute to the high incidence of lung cancer in African-Americans.   view more (2005-10-17)

Testes to incubate stem cells
Men may cringe at the idea, but sperm-producing stem cells found in testicles could be extracted, grown in the lab, and frozen for future use.   view more (2006-04-25)

New source of multipotent adult stem cells discovered in human hair follicles
Researchers at the University of Pennsylvania School of Medicine have isolated a new source of adult stem cells that appear to have the potential to differentiate into several cell types.   view more (2006-07-13)

AMN107 has potent activity in leukemia resistant to Gleevec
The targeted agent AMN107 can produce dramatic benefits in patients with some forms of leukemia that are resistant to Gleevec, the standard therapy for these cancers, say researchers at The University of Texas M. D. Anderson Cancer Center.   view more (2005-12-12)

Breast stem cells have features similar to 'basal' tumors
The most aggressive form of breast cancer may originate from breast stem cells that have undergone genetic mishaps.   view more (2006-07-20)

Researchers solve mystery of how nuclear pores duplicate before cell division
Researchers have long wondered how nuclear pores - the all-important channels that control the flow of information in and out of a cell's nucleus - double in number to prepare for the split to come when a cell divides.   view more (2006-04-21)

Adult stem cells are touchy-feely, need environmental clues
A certain type of adult stem cell can turn into bone, muscle, neurons or other types of tissue depending on the "feel" of its physical environment.   view more (2006-08-25)

New efficiency record for solar cells
The efficiency improvement is achieved by the use of an ultra-thin aluminum oxide layer at the front of the cell, and it brings a breakthrough in the use of solar energy a step closer.   view more (2008-05-15)

A little telomerase isn't enough
Chromosome ends, or telomeres, are repetitive stretches of DNA that protect chromosomes in much the same way as plastic tips on shoelaces prevent the fabric from fraying.   view more (2005-12-23)
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