chemotaxis

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Related to chemotactic: chemoattractants, Chemotactic factors

che·mo·tax·is

 (kē′mō-tăk′sĭs, kĕm′ō-)
n.
The characteristic movement or orientation of an organism or cell along a chemical concentration gradient either toward or away from the chemical stimulus.

che′mo·tac′tic (-tăk′tĭk) adj.
che′mo·tac′ti·cal·ly adv.

chemotaxis

(ˌkɛməʊˈtæksɪs)
n
(Microbiology) the movement of a microorganism or cell in response to a chemical stimulus
ˌchemoˈtactic adj
ˌchemoˈtactically adv

che•mo•tax•is

(ˌki moʊˈtæk sɪs, ˌkɛm oʊ-)

n.
oriented movement toward or away from a chemical stimulus.
[1890–95]
che`mo•tac′tic (-tɪk) adj.
che`mo•tac′ti•cal•ly, adv.

chemotaxis

the property of some plants and animals of moving toward or away from certain chemicals.
See also: Motion
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.chemotaxis - movement by a cell or organism in reaction to a chemical stimulus
taxis - a locomotor response toward or away from an external stimulus by a motile (and usually simple) organism
negative chemotaxis - movement away from a chemical stimulus
positive chemotaxis - movement toward a chemical stimulus
Translations
chemotassi

che·mo·tax·is

, positive chemotaxis, negative chemotaxis
n. quimiotaxis, movimiento de un organismo o célula como reacción a un estímulo químico.
References in periodicals archive ?
There is a key function of Transforming Growth Factor Beta 1 in repair of wounds; it is a strong chemotactic factor for fibroblasts and activates them to produce main extracellular matrix components like collagen.
In trauma, infection and stress, the HPA and SNS activate and release inflammatory compounds, which probably affect the central nervous system via three pathways: (a) the neurological pathway via the Vigus nerve, (b) the humoral pathway, (c) the pathway of activating astrocytes in the central nervous system (CNS) and promoting the release of Monocyte Chemotactic and Activating Factor (MCP), which causes mononuclear cells to migrate into the CNS directly.
No notable changes in either phase were seen for IL-1RA, IL-2, IL-5, IL-10, IL-12p70, IL-17, granulocyte colony-stimulating factor, monocyte chemotactic protein 1, and platelet-derived growth factor [beta] polypeptide levels (data not shown), and macrophage inflammatory protein 1[beta] concentrations.
Same study investigating the utility of eosinophil count in diagnosing sepsis suggested that as the inflammation cascade builds up, chemotactic substances released from inflammatory cells during the inflammatory response lead to the sequestration of circulating eosinophils at the site of inflammation, thus decreasing the number of circulating eosinophils.
TGFB1 is a strong chemotactic factor for fibroblasts and excites them to build main extracellular matrix constituents like collagen.
Nitrous oxide also depresses chemotactic migration by neutrophils and monocytes, apparently by interfering with microtubules (3, 4).
The use of in vivo imaging of transgenic zebrafish whose neutrophils express green fluorescence protein (GFP), as well as increased real-time tracking of immune cell migration, provides a new perspective on how chemicals and genetic interference operate on neutrophils' chemotactic response.
1992) are prominent chemokines secreted by macrophages, inducing chemotactic migration of fibroblasts.
The neutrophil-activating peptide 1/interleukin 8, a novel neutrophil chemotactic cytokine.
The failure of neutrophil migration caused by TNF-a, IL-8, and macrophage-derived neutrophil chemotactic factor is mediated by NO.
In acute inflammatory processes, macrophages, mast cells and lymphocytes have a modulator role in neutrophil migration releasing chemotactic factors, such as leukotrienes ([LTB.
Chemokine receptor 3 (CXCR-3) gene product is involved in chemotactic T-cell migration, dendritic cell maturation and recruitment of inflammatory cells during infections (16).