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@ARTICLE{Sengupta:57086,
author = {Sengupta, K. and Aranda-Espinoza, H. and Smith, L. and
Janmey, P. and Hammer, D.},
title = {{S}preading of neutrophils: from activation to migration},
journal = {Biophysical journal},
volume = {91},
issn = {0006-3495},
address = {New York, NY},
publisher = {Rockefeller Univ. Press},
reportid = {PreJuSER-57086},
pages = {4638 - 4648},
year = {2006},
note = {Record converted from VDB: 12.11.2012},
abstract = {Neutrophils rely on rapid changes in morphology to ward off
invaders. Time-resolved dynamics of spreading human
neutrophils after activation by the chemoattractant fMLF
(formyl methionyl leucyl phenylalanine) was observed by RICM
(reflection interference contrast microscopy). An
image-processing algorithm was developed to identify the
changes in the overall cell shape and the zones of close
contact with the substrate. We show that in the case of
neutrophils, cell spreading immediately after exposure of
fMLF is anisotropic and directional. The dependence of
spreading area, A, of the cell as a function of time, t,
shows several distinct regimes, each of which can be fitted
as power laws (A ~ t(b)). The different spreading regimes
correspond to distinct values of the exponent b and are
related to the adhesion state of the cell. Treatment with
cytochalasin-B eliminated the anisotropy in the spreading.},
keywords = {Actins: metabolism / Bicyclo Compounds, Heterocyclic:
pharmacology / Cell Adhesion / Cell Polarity / Cell Shape /
Chemotaxis, Leukocyte / Cytochalasin B: pharmacology /
Humans / Models, Biological / N-Formylmethionine
Leucyl-Phenylalanine: pharmacology / Neutrophil Activation /
Neutrophils: physiology / Thiazolidines: pharmacology /
Actins (NLM Chemicals) / Bicyclo Compounds, Heterocyclic
(NLM Chemicals) / Thiazolidines (NLM Chemicals) /
Cytochalasin B (NLM Chemicals) / N-Formylmethionine
Leucyl-Phenylalanine (NLM Chemicals) / latrunculin A (NLM
Chemicals) / J (WoSType)},
cin = {ISG-4},
ddc = {570},
cid = {I:(DE-Juel1)VDB421},
pnm = {Kondensierte Materie},
pid = {G:(DE-Juel1)FUEK414},
shelfmark = {Biophysics},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:17012330},
pmc = {pmc:PMC1779913},
UT = {WOS:000242339600032},
doi = {10.1529/biophysj.105.080382},
url = {https://juser.fz-juelich.de/record/57086},
}