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MicroSCALE screening reveals genetic modifiers of therapeutic response in melanoma.

Publication ,  Journal Article
Wood, KC; Konieczkowski, DJ; Johannessen, CM; Boehm, JS; Tamayo, P; Botvinnik, OB; Mesirov, JP; Hahn, WC; Root, DE; Garraway, LA; Sabatini, DM
Published in: Sci Signal
May 15, 2012

Cell microarrays are a promising tool for performing large-scale functional genomic screening in mammalian cells at reasonable cost, but owing to technical limitations they have been restricted for use with a narrow range of cell lines and short-term assays. Here, we describe MicroSCALE (Microarrays of Spatially Confined Adhesive Lentiviral Features), a cell microarray-based platform that enables application of this technology to a wide range of cell types and longer-term assays. We used MicroSCALE to uncover kinases that when overexpressed partially desensitized B-RAFV600E-mutant melanoma cells to inhibitors of the mitogen-activated protein kinase kinase kinase (MAPKKK) RAF, the MAPKKs MEK1 and 2 (MEK1/2, mitogen-activated protein kinase kinase 1 and 2), mTOR (mammalian target of rapamycin), or PI3K (phosphatidylinositol 3-kinase). These screens indicated that cells treated with inhibitors acting through common mechanisms were affected by a similar profile of overexpressed proteins. In contrast, screens involving inhibitors acting through distinct mechanisms yielded unique profiles, a finding that has potential relevance for small-molecule target identification and combination drugging studies. Further, by integrating large-scale functional screening results with cancer cell line gene expression and pharmacological sensitivity data, we validated the nuclear factor κB pathway as a potential mediator of resistance to MAPK pathway inhibitors. The MicroSCALE platform described here may enable new classes of large-scale, resource-efficient screens that were not previously feasible, including those involving combinations of cell lines, perturbations, and assay outputs or those involving limited numbers of cells and limited or expensive reagents.

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Published In

Sci Signal

DOI

EISSN

1937-9145

Publication Date

May 15, 2012

Volume

5

Issue

224

Start / End Page

rs4

Location

United States

Related Subject Headings

  • Proto-Oncogene Proteins B-raf
  • Pharmacogenetics
  • Mutation
  • Melanoma
  • MAP Kinase Signaling System
  • Humans
  • Fluorescent Antibody Technique
  • Cell Line, Tumor
  • Cell Cycle
  • Blotting, Western
 

Citation

APA
Chicago
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MLA
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Wood, K. C., Konieczkowski, D. J., Johannessen, C. M., Boehm, J. S., Tamayo, P., Botvinnik, O. B., … Sabatini, D. M. (2012). MicroSCALE screening reveals genetic modifiers of therapeutic response in melanoma. Sci Signal, 5(224), rs4. https://doi.org/10.1126/scisignal.2002612
Wood, Kris C., David J. Konieczkowski, Cory M. Johannessen, Jesse S. Boehm, Pablo Tamayo, Olga B. Botvinnik, Jill P. Mesirov, et al. “MicroSCALE screening reveals genetic modifiers of therapeutic response in melanoma.Sci Signal 5, no. 224 (May 15, 2012): rs4. https://doi.org/10.1126/scisignal.2002612.
Wood KC, Konieczkowski DJ, Johannessen CM, Boehm JS, Tamayo P, Botvinnik OB, et al. MicroSCALE screening reveals genetic modifiers of therapeutic response in melanoma. Sci Signal. 2012 May 15;5(224):rs4.
Wood, Kris C., et al. “MicroSCALE screening reveals genetic modifiers of therapeutic response in melanoma.Sci Signal, vol. 5, no. 224, May 2012, p. rs4. Pubmed, doi:10.1126/scisignal.2002612.
Wood KC, Konieczkowski DJ, Johannessen CM, Boehm JS, Tamayo P, Botvinnik OB, Mesirov JP, Hahn WC, Root DE, Garraway LA, Sabatini DM. MicroSCALE screening reveals genetic modifiers of therapeutic response in melanoma. Sci Signal. 2012 May 15;5(224):rs4.

Published In

Sci Signal

DOI

EISSN

1937-9145

Publication Date

May 15, 2012

Volume

5

Issue

224

Start / End Page

rs4

Location

United States

Related Subject Headings

  • Proto-Oncogene Proteins B-raf
  • Pharmacogenetics
  • Mutation
  • Melanoma
  • MAP Kinase Signaling System
  • Humans
  • Fluorescent Antibody Technique
  • Cell Line, Tumor
  • Cell Cycle
  • Blotting, Western