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Pharmaceutical Discovery, Dec 1, 2005 
Gene Expression Profiling of Esophageal Cancer Using Laser Capture Microdissected Samples

By Michelle Chen , Kaho Minoura , Siqun Wang , Tetsuo Noda , Tetsuichiro Muto , Yoshio Miki

Sigma-Aldrich Corporation
Pharmaceutical Discovery
General Company Description


Sigma-Aldrich was incorporated in 1975 and is based in St. Louis, Missouri. We are a leading life science and high-technology company. Our biochemical and organic chemical products and kits are used in scientific and genomic research, biotechnology, pharmaceutical development, diagnosis of disease, and as key components in pharmaceutical and other high-technology manufacturing. We have customers in life science companies, universities, and government institutions, hospitals and in industry. We operate in 35 countries and offer 90,000 chemicals and 30,000 equipment products.

Chief Drug Discovery/Genomics/Proteomics Technologies Supported

  • Molecular biology
  • Functional genomics
  • Proteomics and protein expression
  • Cell signaling
  • Custom proteomic services

Markets Served

Sigma-Aldrich provides reagents and innovative technologies for drug discovery and biomedical research. We offer several platforms for functional genomic studies, including the MISSION(tm) shRNA library, PEPscreen custom peptide libraries, as well as custom synthesis services for antisera, oligos, peptides, and custom-package design.

Major Products and Services

Small hairpin RNAs or small inhibitory RNAs (siRNAs) for RNA interference

Multiple formats available: bacterial glycerol stocks, purified plasmid DNA, lentiviral particles, and custom siRNAs.

AQUA peptides for biomarker quantitation

Stable isotope-labeled peptides used as internal reference standards for mass spectrometric quantitation of proteins and post-translational modifications are available.

PEPscreen custom peptide array

Custom peptide arrays for efficient screening of diverse protein interactions in a high-throughput format are also offered.

Functional protein arrays for protein profiling

Correctly folded and uniformly oriented proteins in a microarray format are available; they are suitable for screening a range of molecules including DNA, proteins, and small molecules.

Serum depletion for biomarker discovery



Removal of the top 20 most abundant plasma proteins results in increased loading of low abundance proteins and potential biomarkers.

Facilities

Sigma-Aldrich opened a $55 million Life Science Technology Center in December, 2001. The 130,000 ft2 state-of-the-art facility can accommodate over 200 scientists and focuses on multiple initiatives including genomics, functional genomics, gene expression, proteomics, and cell biology. Our immunochemical production facility in Rehovot, Israel specializes in many cell-based technologies, including antibody production and innovative cell signaling kits.

Sigma-Aldrich Corporation
3050 Spruce St. Louis, MO 63103

Telephone
1-800-521-8956

Web site
www.sigmaaldrich.com/

Number of employees
6,800

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