Methods of detection of changes in cells
First Claim
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1. A method of detection of responses of cells to stimuli comprising:
- (a) (i) immobilizing one or more extracellular matrix ligands to a surface of a colorimetric resonant reflectance biosensor or a grating-based waveguide biosensor, wherein the cells have cell surface receptors specific for the one or more extracellular matrix ligands; and
adding the cells to the biosensor;
or(ii) mixing cells with one or more extracellular matrix ligands, wherein the cells have cell surface receptors specific for the one or more extracellular matrix ligands; and
adding the cells with one or more extracellular matrix ligands to a surface of a colorimetric resonant reflectance biosensor or a grating-based waveguide biosensor;
(b) exposing the cells to stimuli, wherein the stimuli are compounds that modulate activity of a G protein-coupled receptor, ion channels, P13 kinase, transient receptor potential channels, phospholipase C, receptor tyrosine kinases, cytokines, beta-arrestin pathway responses, cytoskeletal rearrangements, epigenetic signals, integrins, or signal transduction pathways; and
(c) detecting a change in peak wavelength value or signal over time, which indicates that the cells have responded to the stimuli.
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Abstract
Methods are provided to detect changes in cells without the use of detection labels.
246 Citations
9 Claims
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1. A method of detection of responses of cells to stimuli comprising:
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(a) (i) immobilizing one or more extracellular matrix ligands to a surface of a colorimetric resonant reflectance biosensor or a grating-based waveguide biosensor, wherein the cells have cell surface receptors specific for the one or more extracellular matrix ligands; and
adding the cells to the biosensor;
or(ii) mixing cells with one or more extracellular matrix ligands, wherein the cells have cell surface receptors specific for the one or more extracellular matrix ligands; and
adding the cells with one or more extracellular matrix ligands to a surface of a colorimetric resonant reflectance biosensor or a grating-based waveguide biosensor;(b) exposing the cells to stimuli, wherein the stimuli are compounds that modulate activity of a G protein-coupled receptor, ion channels, P13 kinase, transient receptor potential channels, phospholipase C, receptor tyrosine kinases, cytokines, beta-arrestin pathway responses, cytoskeletal rearrangements, epigenetic signals, integrins, or signal transduction pathways; and (c) detecting a change in peak wavelength value or signal over time, which indicates that the cells have responded to the stimuli. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification