RRC ID 43781
著者 Shimizu Y, Haghparast SM, Kihara T, Miyake J.
タイトル Cortical rigidity of round cells in mitotic phase and suspended state.
ジャーナル Micron
Abstract This paper describes the results of the analysis of cortical rigidity in two round cell states: mitotic round cells and detached round cells after trypsinization using atomic force microscopy (AFM). These two states are primary cell events with dynamic morphological alterations in vitro. The trypsinized detached cells were fixed on the substrate of membrane anchoring oleyl surface. Fluorescent images taken by confocal laser scanning microscopy revealed diverse cell surface protrusions and cortical actin development in the round cells under different conditions. Although the cortical actin of these cells seemed to develop similarly, cortical rigidity of the trypsinized round cells showed greater stiffness than that of mitotic round cells. The elasticity measurements by AFM may detect invisible information about the maturation or strength of F-actin structures and such measurements may indicate that the strength of the actomyosin cortex would be higher in trypsinized round cells compared to mitotic cells. The mechanical properties can help provide better insights into the characteristics of the actin cytoskeleton network in vicinity of cell surface during dynamic morphological alterations.
巻・号 43(12)
ページ 1246-51
公開日 2012-12-1
DOI 10.1016/j.micron.2012.03.011
PII S0968-4328(12)00082-0
PMID 22494854
MeSH Cell Division* Cell Shape Chemical Phenomena* Elasticity Epithelial Cells / physiology* HeLa Cells Humans Mechanical Phenomena* Microscopy, Atomic Force / methods
IF 1.726
引用数 10
WOS 分野 MICROSCOPY
リソース情報
ヒト・動物細胞