News tagged with cell surface

Related topics: cells , immune response , cancer cells , protein

Molecular structure reveals how HIV infects cells

In a long-awaited finding, a team of Chinese and US scientists has determined the high-resolution atomic structure of a cell-surface receptor that most strains of HIV use to get into human immune cells. The ...

Sep 12, 2013
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Breakthrough in battle against leukemia

Scientists at Griffith University's Institute for Glycomics and The Saban Research Institute of Children's Hospital Los Angeles have discovered a critical weakness in leukaemic cells, which may pave the way to new treatments.

Mar 13, 2013
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Key driver of metastasis identified

Scientists at Dalhousie University in Nova Scotia have identified a key mechanism of metastasis that could lead to blocking tumor growth if their findings are confirmed.

Oct 31, 2011
popularity 5 / 5 (4) | comments 2 | with audio podcast

Could turning on a gene prevent diabetes?

Type 2 diabetes accounts for 90 % of cases of diabetes around the world, afflicting 2.5 million Canadians and costing over 15 billion dollars a year in Canada. It is a severe health condition which makes body cells incapable ...

Jul 22, 2013
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Receptor (biochemistry)

In biochemistry, a receptor is a protein molecule, embedded in either the plasma membrane or cytoplasm of a cell, to which a mobile signaling (or "signal") molecule may attach. A molecule which binds to a receptor is called a "ligand," and may be a peptide (such as a neurotransmitter), a hormone, a pharmaceutical drug, or a toxin, and when such binding occurs, the receptor undergoes a conformational change which ordinarily initiates a cellular response. However, some ligands merely block receptors without inducing any response (e.g. antagonists). Ligand-induced changes in receptors result in physiological changes which constitute the biological activity of the ligands.

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