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Gene expression pro...
Gene expression profiles in chondrosarcoma cells subjected to cyclic stretching and hydrostatic pressure. A cDNA array study.
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- Karjalainen, Hannu (författare)
- Department of Anatomy, University of Kuopio, Kuopio, Finland
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- Sironen, Reijo (författare)
- Department of Anatomy, University of Kuopio, Kuopio, Finland
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- Elo, Mika (författare)
- Department of Anatomy, University of Kuopio, Kuopio, Finland
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- Kaarniranta, Kai (författare)
- Department of Anatomy, University of Kuopio, Kuopio, Finland
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- Takigawa, Masaharu (författare)
- bDepartment of Biochemistry and Molecular Dentistry, Okayama University Graduate School of Medicine and Dentistry, Japan
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- Helminen, Heikki (författare)
- Department of Anatomy, University of Kuopio, Kuopio, Finland
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- Lammi, Mikko, 1961- (författare)
- Department of Anatomy, University of Kuopio, Kuopio, Finland
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(creator_code:org_t)
- IOS Press, 2003
- 2003
- Engelska.
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Ingår i: Biorheology. - : IOS Press. - 0006-355X .- 1878-5034. ; 40:1-3, s. 93-100
- Relaterad länk:
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http://content.iospr...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- Mechanical forces have a profound effect on cartilage tissue and chondrocyte metabolism. Strenuous loading inhibits the cellular metabolism, while optimal level of loading at correct frequency raises an anabolic response in chondrocytes. In this study, we used Atlas Human Cancer cDNA array to investigate mRNA expression profiles in human chondrosarcoma cells stretched 8% for 6 hours at a frequency of 0.5 Hz. In addition, cultures were exposed to continuous and cyclic (0.5 Hz) 5 MPa hydrostatic pressure. Cyclic stretch had a more profound effect on the gene expression profiles than 5 MPa hydrostatic pressure. Several genes involved with the regulation of cell cycle were increased in stretched cells, as well as mRNAs for PDGF-B, glucose-1-phosphate uridylyltransferase, Tiam1, cdc37 homolog, Gem, integrin alpha6, and matrix metalloproteinase-3. Among down-regulated genes were plakoglobin, TGF-alpha, retinoic acid receptor-alpha and Wnt8b. A smaller number of changes was detected after pressure treatments. Plakoglobin was increased under cyclic and continuous 5 MPa hydrostatic pressure, while mitogen-activated protein kinase-9, proliferating cell nuclear antigen, Rad6, CD9 antigen, integrins alphaE and beta8, and vimentin were decreased. Cyclic and continuous pressurization induces a number of specific changes. In conclusion, a different set of genes were affected by three different types of mechanical stimuli applied on chondrosarcoma cells.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Cell- och molekylärbiologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Cell and Molecular Biology (hsv//eng)
- NATURVETENSKAP -- Biologi -- Biokemi och molekylärbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Biochemistry and Molecular Biology (hsv//eng)
Nyckelord
- Human chondrosarcoma
- hydostatic pressure
- cell stretching
- gene expression profiling
- microarray
- biokemi
- Biochemistry
- cell research
- cellforskning
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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