Protein profile of osteoarthritic human articular cartilage using tandem mass spectrometry.

Protein profile of osteoarthritic human articular cartilage using tandem mass spectrometry. Research Abstract Details 

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Protein profile of osteoarthritic human articular cartilage using tandem mass spectrometry. Abstract Text:

Benjamin A Garcia,Mark D Platt,Timothy L Born,Jeffrey Shabanowitz,Norman A Marcus,Donald F Hunt,

Articular cartilage contains both chondrocyte cells and extracellular matrix (ECM) components. Currently, comprehensive information concerning the protein composition of human articular cartilage tissue is somewhat lacking. In this report we detail the use of tandem mass spectrometry (MS/MS) for a preliminary global identification of proteins from human articular knee cartilage tissue from patients diagnosed with osteoarthritis. Knee cartilage supernatant was fractionated using one-dimensional sodium dodecyl sulfate polyacrylamide gel electrophoresis (1D-SDS-PAGE), in-gel digested and peptide sequences were then determined by performing on-line nano-liquid chromatography (LC)/MS/MS experiments using an ion trap mass spectrometer. Altogether, over 100 different proteins from nearly 700 unique peptide sequences were detected by MS/MS. The majority of the proteins identified are involved in ECM organization (35%), signal transduction and cell communication (14%), immune response (11%) and metabolism and energy pathways (11%). Proteins observed included several well-known cartilage components as well as lower abundant lesser known ECM proteins. Possible degradation products in the cartilage sample, such as from cartilage link protein, could also be detected by our mass spectrometry methods. We show here that mass spectrometry can be utilized as a tool for a fast, accurate and sensitive analysis of a complex mixture of cartilage proteins. It is believed that this type of proteomic analysis will aid future work centered on investigating the pathology of this and other related joint diseases.

Protein profile of osteoarthritic human articular cartilage using tandem mass spectrometry. Publishing Authors By Initials

BA Garcia,MD Platt,TL Born,J Shabanowitz,NA Marcus,DF Hunt,

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Protein profile of osteoarthritic human articular cartilage using tandem mass spectrometry. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Rapid communications in mass spectrometry : RCM

VOLUME: 20

Page Numbers: 2999-3006

Journal Abbreviation: Rapid Commun. Mass Spectrom.

ISSN: 0951-4198

DAY: 3

MONTH: 12

YEAR: 2006

Protein profile of osteoarthritic human articular cartilage using tandem mass spectrometry. Information

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LANGUAGE: eng

NlmUniqueID: 8802365

Protein profile of osteoarthritic human articular cartilage using tandem mass spectrometry. Keywords Mesh Terms:

KEYWORDS: Spectrometry, Mass, Electrospray Ionizat

MESH TERMS: methods

Chemical & Substance for Abstract: Protein profile of osteoarthritic human articular cartilage using tandem mass spectrometry. Information

Substance Name: Proteome

Registry Number: 0

Grant and Affiliation Information for Protein profile of osteoarthritic human articular cartilage using tandem mass spectrometry.

AFFILIATION: Department of Chemistry, University of Virginia, Charlottesville, VA 22904, USA.

Country: England

AGENCY: United States NIGMS

GRANT: GM37537

ACRONYM: GM

MEDLINETA: Rapid Commun Mass Spectrom

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