Document Detail

Live cell response to mechanical stimulation studied by integrated optical and atomic force microscopy.
MedLine Citation:
PMID:  20972405     Owner:  NLM     Status:  MEDLINE    
To understand the mechanism by which living cells sense mechanical forces, and how they respond and adapt to their environment, a new technology able to investigate cells behavior at sub-cellular level with high spatial and temporal resolution was developed. Thus, an atomic force microscope (AFM) was integrated with total internal reflection fluorescence (TIRF) microscopy and fast-spinning disk (FSD) confocal microscopy. The integrated system is broadly applicable across a wide range of molecular dynamic studies in any adherent live cells, allowing direct optical imaging of cell responses to mechanical stimulation in real-time. Significant rearrangement of the actin filaments and focal adhesions was shown due to local mechanical stimulation at the apical cell surface that induced changes into the cellular structure throughout the cell body. These innovative techniques will provide new information for understanding live cell restructuring and dynamics in response to mechanical force. A detailed protocol and a representative data set that show live cell response to mechanical stimulation are presented.
Andreea Trache; Soon-Mi Lim
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.; Video-Audio Media     Date:  2010-10-04
Journal Detail:
Title:  Journal of visualized experiments : JoVE     Volume:  -     ISSN:  1940-087X     ISO Abbreviation:  J Vis Exp     Publication Date:  2010  
Date Detail:
Created Date:  2010-10-25     Completed Date:  2010-12-10     Revised Date:  2013-07-03    
Medline Journal Info:
Nlm Unique ID:  101313252     Medline TA:  J Vis Exp     Country:  United States    
Other Details:
Languages:  eng     Pagination:  -     Citation Subset:  IM    
Department of Systems Biology and Translational Medicine, College of Medicine, Cardiovascular Research Institute, Texas A&M Health Science Center, USA.
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MeSH Terms
Cell Physiological Phenomena*
Cytological Techniques / methods*
Green Fluorescent Proteins / analysis,  metabolism
Microscopy, Atomic Force / methods*
Microscopy, Fluorescence / methods
Optics and Photonics / methods*
Reg. No./Substance:
147336-22-9/Green Fluorescent Proteins

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

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