Abstract
Microarrays have become common tools for approaching different experimental questions: DNA, protein and peptide arrays offer the power of multiplexing the assay and by means of miniaturization technology, the possibility to reduce cost and amount of samples and reagents.
Recently, a novel technology for functional assays has been proposed. Sabatini and co-workers have shown a cell-based microarrays method (1) that relies on the deposition and immobilization of an array of cDNA plasmids on a slide where cells are subsequently plated; the cDNA is then internalized by “reverse transfection” and cells overexpress or downregulate in each single spot the genes of interest. This approach allows the screening of different phenotypes in living cells of many genes in parallel on a single slide.
To overcome some relevant limitations of this approach, we have implemented the technology by means of viral immobilization (2) on a novel surface of cluster-assembled nanostructured TiO2 (3) previously functionalized with an array of a docking protein.
In this work, we present the detailed development of the “reverse infection cell-microarray based technology” in U2OS cells on a novel coated slide that represents an advanced application of protein arrays.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Ziauddin, J., Sabatini, D. M. (2001) Microarrays of cells expressing defined cDNAs. Nature 411, 107–110.
Carbone, R., Giorgetti, L., Zanardi, A., et al. (2007) Retroviral microarray-based platform on nanostructured TiO2 for functional genomics and drug discovery. Biomaterials 28, 2244–2253.
Carbone, R., Marangi, I., Zanardi, A., et al. (2006) Biocompatibility of cluster-assembled nanostructured TiO2 with primary and cancer cells. Biomaterials 27, 3221–3229.
Piseri, P., Vahedi-Tafreshi, H., Milani, P. (2004) Manipulation of nanoparticles in supersonic beams for the production of nanostructured materials. Curr Op Solid State Mater Sci 8, 195–202.
Sousa, S. R., Lamghari, M., Sampaio, P., Moradas-Ferreira, P., Barbosa, M. A. (2008) Osteoblast adhesion and morphology on TiO2 depends on the competitive preadsorption of albumin and fibronectin. J Biomed Mater Res A 84, 281–90.
Hughes, C., Galea-Lauri, J., Farzaneh, F., Darling, D. (2001) Streptavidin paramagnetic particles provide a choice of three affinity-based capture and magnetic concentration strategies for retroviral vectors Mol Ther 3, 623–630.
Zavorotinskaya, T., Qian, Z., Franks, J., Albritton, L. M. (2004) A point mutation in the binding subunit of a retroviral envelope protein arrests virus entry at hemifusion. J Virol 78, 473–481.
Themis, M., Forbes, S. J., Chan, L., et al. (1998) Enhanced in vitro and in vivo gene delivery using cationic agent complexed retrovirus vectors. Gene Ther 5, 1180–1186.
Barborini, E., Piseri, P., Milani, P. (1999) A pulsed microplasma source of high intensity supersonic carbon cluster beams. J Phys D: Appl Phys 32, L105–L9.
Grignani, F., Kinsella, T., Mencarelli, A., et al. (1998) High-efficiency gene transfer and selection of human hematopoietic progenitor cells with a hybrid EBV/retroviral vector expressing the green fluorescence protein. Cancer Res 58, 14–19.
Acknowledgements
The author would like to thank Prof. Paolo Milani for providing nanostructured TiO2-coated slides and Andrea Zanardi and Samuele Venturini for technical assistance. This work was supported by AIRC under OGCG grant “Development and integration of high-throughput technologies for the functional genomics of cancer”.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2009 Humana Press, a part of Springer Science+Business Media, LLC
About this protocol
Cite this protocol
Carbone, R. (2009). An Advanced Application of Protein Microarrays: Cell-Based Assays for Functional Genomics. In: Cretich, M., Chiari, M. (eds) Peptide Microarrays. Methods in Molecular Biology™, vol 570. Humana Press. https://doi.org/10.1007/978-1-60327-394-7_19
Download citation
DOI: https://doi.org/10.1007/978-1-60327-394-7_19
Published:
Publisher Name: Humana Press
Print ISBN: 978-1-60327-393-0
Online ISBN: 978-1-60327-394-7
eBook Packages: Springer Protocols