News tagged with cell surface

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

Lymphoma: How the tumor escapes the immune response

Natural killer cells of the immune system can fend off malignant lymphoma cells and thus are considered a promising therapeutic approach. However, in the direct vicinity of the tumor they lose their effect. Scientists of ...

Jul 08, 2015
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Scientists map surface of immune cells

The immune system must constantly adapt to its environment in order to protect a body effectively. The so-called T cells are an important example in this regard. One of their functions is to form the immune system's "memory". ...

Jun 12, 2015
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Golgi trafficking controlled by G proteins

A family of proteins called G proteins are a recognized component of the communication system the human body uses to sense hormones and other chemicals in the bloodstream and to send messages to cells. In work that further ...

Apr 09, 2015
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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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