| chemoimmunology | <chemistry, immunology> A subfield of chemistry that is concerned with the study of the chemical activity involved with immunological processes. (09 Oct 1997) |
|---|---|
| chemokine | Cytokines that are chemotactic for leucocytes. The first member of the family was IL-8 interleukin-8) but subsequently many other members have been identified. They can now be sub divided into two groups on the basis of the arrangement of a pair of conserved cysteines: the C x C group includes platelet Factor 4, platelet basic protein, interleukin 8, melanoma growth stimulatory protein, macrophage inflammatory protein 2, the C C group contains (18 Nov 1997) |
| chemokine receptor | A molecule that receives a chemokine and a chemokine dock. Several chemokine receptors are essential co-receptors for HIV. (12 Dec 1998) |
| chemokines | Class of pro-inflammatory cytokines that have the ability to attract and activate leukocytes. They can be divided into at least three structural branches: c (chemokines, c), cc (chemokines, cc), and cxc (chemokines, cxc), according to variations in a shared cysteine motif. (12 Dec 1998) |
| chemokines, c | Group of chemokines without adjacent cysteines that are chemoattractants for lymphocytes only. (12 Dec 1998) |
| chemokines, cc | Group of chemokines with adjacent cysteines that are chemoattractants for lymphocytes, monocytes, eosinophils, basophils but not neutrophils. (12 Dec 1998) |
| chemokines, cxc | Group of chemokines with paired cysteines separated by a different amino acid. Cxc chemokines are chemoattractants for neutrophils but not monocytes. (12 Dec 1998) |
| chemokinesis | A response by a motile cell to a soluble chemical that involves an increase or decrease in speed (positive or negative orthokinesis) or of frequency of movement or a change in the frequency or magnitude of turning behaviour (klinokinesis). (18 Nov 1997) |
| chemokinetic | Referring to chemokinesis. (05 Mar 2000) |
| chemolithotroph | An organism which obtains its energy from the oxidation of inorganic compounds. (09 Oct 1997) |
| chemolithotrophic | Pertaining to a chemoautotroph. Synonym: chemolithotrophic. (05 Mar 2000) |
| chemolithotrophy | The utilization of inorganic compounds or ions to obtain reducing equivalents and energy. Origin: chemo-+ G. Lithos, stone, mineral, + trophe, nourishment (05 Mar 2000) |
| chemoluminescence | <chemistry> Light emitted as a reaction proceeds. Becoming used increasingly to assay ATP (using firefly luciferase) and the production of toxic oxygen species by activated phagocytes (using luminol or lucigenin as bystander substrates that release light when oxidized). See: bioluminescence. (18 Nov 1997) |
| chemolysis | Chemical decomposition. Origin: chemo-+ G. Lysis, dissolution (05 Mar 2000) |
| chemonucleolysis | Injection of chymopapain into the nucleus pulposis of an intervertebral disc. A therapeutic option for the treatment of a herniated nucleus pulposis, e.g., "slipped disc." (05 Mar 2000) |