Document Detail


Perturbations in cancer cell deformability and resistance to shear forces.
MedLine Citation:
PMID:  3089963     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
During hematogenous metastasis, circulating cancer cells appear to be killed in the microcirculation by a non-exclusive mechanism, involving the mechanical trauma consequent upon cancer cell interactions with the vessel wall. Various observations by others indicate that with increased cell deformability, there is decreased intravascular cell killing. We have therefore critically examined the effects of agents previously shown to modify cell deformability, on the susceptibility of Ehrlich ascites tumor and L1210 leukemia cells to mechanical damage on passage through polycarbonate membranes in vitro. Treatment with neuraminidase, trypsin or EGTA, was previously shown to increase cell deformability. However, in the present studies, neuraminidase treatment was associated with increased cell loss on filtration; trypsin treatment with small decreases in cell loss, and EGTA treatment with decreased loss. Consideration of the effects of these agents on cell deformability and membrane strength suggests that under the described experimental conditions, the latter appears more important for survival than the former. As proteolytic and glycolytic enzymes and calcium ions are involved in the release of cancer cells from tumors and invasive events, the effects described here may be relevant to the variability of cancer cells with respect to the metastatic process.
Authors:
H Gabor; L Weiss
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Invasion & metastasis     Volume:  6     ISSN:  0251-1789     ISO Abbreviation:  Invasion Metastasis     Publication Date:  1986  
Date Detail:
Created Date:  1986-09-17     Completed Date:  1986-09-17     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8202435     Medline TA:  Invasion Metastasis     Country:  SWITZERLAND    
Other Details:
Languages:  eng     Pagination:  166-79     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Animals
Carcinoma, Ehrlich Tumor
Cell Movement / drug effects
Cell Survival / drug effects
Egtazic Acid / pharmacology
Filtration
Humans
Leukemia L1210
Neoplasm Metastasis*
Neuraminidase / pharmacology
Trypsin / pharmacology
Chemical
Reg. No./Substance:
67-42-5/Egtazic Acid; EC 3.2.1.18/Neuraminidase; EC 3.4.21.4/Trypsin

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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