Name: studying cell rolling trajectories on asymmetric receptor patterns
Uploaded: 2011-02-13T16:00:00
Description: Watch this Scientific Journal Video about Studying Cell Rolling Trajectories on Asymmetric Receptor Patterns at JoVE.com

This project was supported by the Deshpande Center for Technological Innovation at MIT (R.K. and J.M.K.) and the NSF CAREER award 0952493 to R.K. through the Chemical and Biological Separations program. We thank the Institute for Soldier Nanotechnologies (ISN) and the Microsystems Technology Laboratory (MTL) at MIT for use of their facilities.

1. HL60 cell rolling
1.1. Fabrication of Patterned Substrates.
<ol>
	<li>Using microcontact printing (&mu;CP)4-7 to make alternating self-assembled monolayers (SAMs) of PEG molecules on the gold-coated glass slides: Fabricate microcontact printing polydimethylsiloxane (PDMS) stamps that defined the receptor patterns with inclination angle of &alpha; = 10&deg; by an SU-8 molding process. Clean the gold surface with piranha solution (3:1 mixture of sulfuric acid to 30% hydrogen peroxid...

<ol>
	<li>Karnik, R., Hong, S., Zhang, H., Mei, Y., Anderson, D. G., Karp, J. M., Langer, R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Nanomechanical+control+of+cell+rolling+in+two+dimensions+through+surface+Patterning+of+receptors.">Nanomechanical control of cell rolling in two dimensions through surface Patterning of receptors.</a> Nano Lett. 8 (4), 1153-1158 (2008).</li><li>Lee, C. H., Bose, S., Van Vliet, K. J., Karp, J. M., Karnik, R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Examining+Lateral+Displacement+of+HL60+Cells+Rolling+on+Asymmetric+P-selectin+Patterns.">Examining Lateral Displacement of HL60 Cells Rolling on Asymmetric P-selectin Patterns.</a> Langmuir. 27 (1), 240-249 (2011).</li><li>Norman, K. E., Moore, K. L., McEver, R. P., Ley, K. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Leukocyte+rolling+in-vivo+is+mediated+by+p-selectin+glycoprotein+ligand-1.">Leukocyte rolling in-vivo is mediated by p-selectin glycoprotein ligand-1.</a> Blood. 86 (12), 4417-4421 (1995).</li><li>Bernard, A., Delamarche, E., Schmid, H., Michel, B., Bosshard, H. R., Biebuyck, H. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Printing+patterns+of+proteins.">Printing patterns of proteins.</a> Langmuir. 14 (9), 2225-2229 (1998).</li><li>James, C. D., Davis, R. C., Kam, L., Craighead, H. G., Isaacson, M., Turner, J. N., Shain, W. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Patterned+protein+layers+on+solid+substrates+by+thin+stamp+microcontact+printing.">Patterned protein layers on solid substrates by thin stamp microcontact printing.</a> Langmuir. 14 (4), 741-744 (1998).</li><li>Mrksich, M., Whitesides, G. M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Using+self-assembled+monolayers+to+understand+the+interactions+of+man-made+surfaces+with+proteins+and+cells.">Using self-assembled monolayers to understand the interactions of man-made surfaces with proteins and cells.</a> Annual Review of Biophysics and Biomolecular Structure. 25, 55-78 (1996).</li><li>Tan, J. L., Tien, J., Chen, C. S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Microcontact+printing+of+proteins+on+mixed+self-assembled+monolayers.">Microcontact printing of proteins on mixed self-assembled monolayers.</a> Langmuir. 18 (2), 519-523 (2002).</li><li>Lee, D., King, M. R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Microcontact+Printing+of+P-Selectin+Increases+the+Rate+of+Neutrophil+Recruitment+Under+Shear+Flow.">Microcontact Printing of P-Selectin Increases the Rate of Neutrophil Recruitment Under Shear Flow.</a> Biotechnology Progress. 24 (5), 1052-1059 .</li><li>Greenberg, A. W., Hammer, D. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Cell+separation+mediated+by+differential+rolling+adhesion.">Cell separation mediated by differential rolling adhesion.</a> Biotechnol. Bioeng. 73 (2), 111-124 (2001).</li><li>Higuchi, A., Tsukamoto, Y. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Cell+separation+of+hepatocytes+and+fibroblasts+through+surface-modified+polyurethane+membranes.">Cell separation of hepatocytes and fibroblasts through surface-modified polyurethane membranes.</a> J. Biomed. Mater. Res. Part A. 71A (3), 470-479 (2004).</li><li>Alexeev, A., Verberg, R., Balazs, A. C. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Patterned+surfaces+segregate+compliant+microcapsules.">Patterned surfaces segregate compliant microcapsules.</a> Langmuir. 23 (3), 983-987 (2007).</li></ol>

We have described a protocol to examine cell rolling trajectories on asymmetric receptor-patterned surfaces fabricated using microcontact printing2. The optical microscope images of patterned surface showing clear contrast between PEG and P-selectin areas can be used to confirm whether stamping is successful. Sharp, straight edges can be observed when the stamping is performed well. Hard pressing of the stamp may result in stamp deformation which limits the precision of patterns. Wavy edges may be obtained whe...

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">	
		
		<div>
		<table border="1">
		<thead>
		<tr>
		<th>Material Name</th>
		<th>Type</th>
		<th>Company</th>
		<th>Catalogue Number</th>
		<th>Comment</th>
		</tr>
		</thead>
		<tbody>
		
<tr>
<td>Human promyelocytic leukemia cells</td>
<td>&nbsp;</td>
<td>ATCC</td>
<td>CCL-240</td>
<td>HL60 cells</td>
</tr>
<tr>
<td>Gold-coated glass slides</td>
<td>&nbsp;</td>
<td>EMF</td>
<td>TA134</td>
<td>Gold slides</td>
</tr>
<tr>
<td>(1-Mercaptoundec-11-yl)tetra(ethylene glycol)</td>
<td>&nbsp;</td>
<td>Sigma-Aldrich</td>
<td>674508</td>
<td>PEG</td>
</tr>
<tr>
<td>Recombinant human P-selectin</td>
<td>&nbsp;</td>
<td>R&amp;D Systems Inc.</td>
<td>ADP3-050</td>
<td>P-selectin</td>
</tr>
<tr>
<td>Bovine serum albumin</td>
<td>&nbsp;</td>
<td>Rockland Immunochemicals, Inc.</td>
<td>BSA-50</td>
<td>BSA</td>
</tr>
<tr>
<td>Dulbecco's phosphate buffered saline </td>
<td>&nbsp;</td>
<td>Mediatech Inc.</td>
<td>21-030</td>
<td>DPBS</td>
</tr>
<tr>
<td>Sulfuric acid </td>
<td>&nbsp;</td>
<td>Sigma-Aldrich</td>
<td>339741</td>
<td>&nbsp;</td>
<tr>
<td>Hydrogen peroxide</td>
<td>&nbsp;</td>
<td>Sigma-Aldrich</td>
<td>316989</td>
<td>&nbsp;</td>		</tbody>
		</table>
		</div>

studying cell rolling trajectories on asymmetric receptor patterns

Lateral displacement of cells orthogonal to a flow stream by rolling on asymmetric receptor patterns presents an opportunity for development of new devices for label-free separation and analysis of cells1. Such devices may use lateral displacement for continuous-flow separation, or receptor patterns that modulate adhesion to distinguish between different cell phenotypes or levels of receptor expression. Understanding the nature of cell rolling trajectories on receptor-patterned substrates is necessary for engineering of the substrates and design of such devices.
Here, we demonstrate a protocol for studying cell rolling trajectories on asymmetric receptor patterns that support cell rolling adhesion2. Well-defined, &mu;m-scale patterns of P-selectin receptors were fabricated using microcontact printing on gold-coated slides that were incorporated in a flow chamber. HL60 cells expressing the PSGL-1 ligand 3were flowed across a field of patterned lines and visualized on an inverted bright field microscope. The cells rolled and tracked along the inclined edges of the patterns, resulting in lateral deflection1. Each cell typically rolled for a certain distance along the pattern edges (defined as the edge tracking length), detached from the edge, and reattached to a downstream pattern. Although this detachment makes it difficult to track the entire trajectory of a cell from entrance to exit in the flow chamber, particle-tracking software was used to analyze and yield the rolling trajectories of the cells during the time when they were moving on a single receptor-patterned line. The trajectories were then examined to obtain distributions of cell rolling velocities and the edge tracking lengths for each cell for different patterns.
This protocol is useful for quantifying cell rolling trajectories on receptor patterns and relating these to engineering parameters such as pattern angle and shear stress. Such data will be useful for design of microfluidic devices for label-free cell separation and analysis.

Watch this Scientific Journal Video about Studying Cell Rolling Trajectories on Asymmetric Receptor Patterns at JoVE.com

Studying Cell Rolling Trajectories on Asymmetric Receptor Patterns

We describe a protocol to observe and analyze cell rolling trajectories on asymmetric receptor-patterned substrates. The resulting data are useful for engineering of receptor-patterned substrates for label-free cell separation and analysis.

Lateral displacement of cells orthogonal to a flow stream by rolling on asymmetric receptor patterns presents an opportunity for development of new ...

Research

JoVE Journal

Bioengineering

Microfabrication of Nanoporous Gold Patterns for Cell-material Interaction Studies

Nanostructured materials with feature sizes in tens of nanometers have enhanced the performance of several technologies, including fuel cells, biosensors, ...

Systematic Analysis of In Vitro Cell Rolling Using a Multi-well Plate Microfluidic System

Systematic Analysis of In Vitro Cell Rolling Using a Multi-well Plate Microfluidic System

A major challenge for cell-based therapy is the inability to systemically target a large quantity of viable cells with high efficiency to tissues of ...

Electronic Tongue Generating Continuous Recognition Patterns for Protein Analysis

In current protocol, a combinatorial approach has been developed to simplify the design and production of sensing materials for the construction of ...

Fluorescence Biomembrane Force Probe: Concurrent Quantitation of Receptor-ligand Kinetics and Binding-induced Intracellular Signaling on a Single Cell

Membrane receptor-ligand interactions mediate many cellular functions. Binding kinetics and downstream signaling triggered by these molecular interactions ...

Solid Lipid Nanoparticles (SLNs) for Intracellular Targeting Applications

Solid Lipid Nanoparticles SLNs for Intracellular Targeting Applications

Nanoparticle-based delivery vehicles have shown great promise for intracellular targeting applications, providing a mechanism to specifically alter ...

Studying the Stoichiometry of Epidermal Growth Factor Receptor in Intact Cells using Correlative Microscopy

This protocol describes the labeling of epidermal growth factor receptor (EGFR) on COS7 fibroblast cells, and subsequent correlative fluorescence ...

Human Neural Organoids for Studying Brain Cancer and Neurodegenerative Diseases

The lack of relevant in vitro neural models is an important obstacle on medical progress for neuropathologies. Establishment of relevant cellular models ...

A Macrophage Reporter Cell Assay to Examine Toll-Like Receptor-Mediated NF-kB/AP-1 Signaling on Adsorbed Protein Layers on Polymeric Surfaces

The persistent inflammatory host response to an implanted biomaterial, known as the foreign body reaction, is a significant challenge in the development ...

A Human 3D Extracellular Matrix-Adipocyte Culture Model for Studying Matrix-Cell Metabolic Crosstalk

The extracellular matrix (ECM) plays a central role in regulating tissue homeostasis, engaging in crosstalk with cells and regulating multiple aspects of ...

In Vitro 3D Cell-Cultured Arterial Models for Studying Vascular Drug Targeting Under Flow

In Vitro 3D Cell-Cultured Arterial Models for Studying Vascular Drug Targeting Under Flow

The use of three-dimensional (3D) models of human arteries, which are designed with the correct dimensions and anatomy, enables the proper modeling of ...