Chapter title |
Nanomechanical Characterization of Living Mammary Tissues by Atomic Force Microscopy
|
---|---|
Chapter number | 14 |
Book title |
Mammary Stem Cells
|
Published in |
Methods in molecular biology, January 2015
|
DOI | 10.1007/978-1-4939-2519-3_14 |
Pubmed ID | |
Book ISBNs |
978-1-4939-2518-6, 978-1-4939-2519-3
|
Authors |
Marija Plodinec, Roderick Y. H. Lim, Plodinec, Marija, Lim, Roderick Y. H. |
Abstract |
The mechanical properties of living cells and tissues are important for a variety of functional processes in vivo, including cell adhesion, migration, proliferation and differentiation. Changes in mechano-cellular phenotype, for instance, are associated with cancer progression. Atomic force microscopy (AFM) is an enabling technique that topographically maps and quantifies the mechanical properties of complex biological matter in physiological aqueous environments at the nanometer length scale. Recently we applied AFM to spatially resolve the distribution of nanomechanical stiffness across human breast cancer biopsies in comparison to healthy tissue and benign tumors. This led to the finding that AFM provides quantitative mechano-markers that may have translational significance for the clinical diagnosis of cancer. Here, we provide a comprehensive description of sample preparation methodology, instrumentation, data acquisition and analysis that allows for the quantitative nanomechanical profiling of unadulterated tissue at submicron spatial resolution and nano-Newton (nN) force sensitivity in physiological conditions. |
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