Change search
ReferencesLink to record
Permanent link

Direct link
Effects of cyclic hydrostatic pressure on proteoglycan synthesis in cultured chondrocytes and articular cartilage explants.
Department of Anatomy, University of Kuopio, Kuopio, Finland.
Technical Center, University of Kuopio, Kuopio, Finland.
Department of Anatomy, University of Kuopio, Kuopio, Finland. (Chondrogenic and Osteogenic Differentiation Group)ORCID iD: 0000-0002-6181-9904
Technical Center, University of Kuopio, Kuopio, Finland.
Show others and affiliations
1993 (English)In: Archives of Biochemistry and Biophysics, ISSN 0003-9861, E-ISSN 1096-0384, Vol. 300, no 1, 458-465 p., 8424680Article in journal (Refereed) Published
Abstract [en]

Primary chondrocyte cell cultures and explants of bovine articular cartilage were subjected to cyclic hydrostatic pressure in a novel computer-controlled pressure chamber designed for this purpose. The cultures were labeled with 5 microCi/ml 35SO4 and simultaneously pressurized with 5 MPa load for 1.5 or 20 h with pressure cycles of 0.0167, 0.05, 0.25, and 0.5 Hz. The chondrocyte cell cultures were also subjected to 0.0082 and 0.0034 Hz cycles. Sulfate incorporation was significantly inhibited in cell cultures subjected to the 0.5, 0.25, or 0.05 Hz cyclic loads for 1.5 h, but stimulated in explant cultures with a 0.5 Hz cyclic 1.5-h load. Chondrocyte cultures subjected to longer (20 h) loading showed a stimulation of sulfate incorporation with 0.5 and 0.25 Hz cycles, but an inhibition with 0.0167 Hz. The results indicate that cyclic hydrostatic pressures of presumably physiological magnitude have significant influences on proteoglycan synthesis in articular cartilage chondrocytes. Comparison of the cell and explant cultures under identical pressure conditions suggested that chondrocyte interactions with extracellular matrix are involved in this regulation by cyclic hydrostatic pressure. The responses of the chondrocytes to pressurization also varied according to the total length of the treatment, a finding compatible with the idea of multiple metabolic steps in chondrocytes, both pre- and post-translational, controlled by the ambient hydrostatic pressure.

Place, publisher, year, edition, pages
Elsevier, 1993. Vol. 300, no 1, 458-465 p., 8424680
Keyword [en]
Chondrocyte, hydrostatic pressure, proteoglycan, biosynthesis
National Category
Cell and Molecular Biology Biochemistry and Molecular Biology
Research subject
Biochemistry; cellforskning
URN: urn:nbn:se:umu:diva-108503DOI: 10.1006/abbi.1993.1062PubMedID: 8424680OAI: diva2:853237
Available from: 2015-09-11 Created: 2015-09-11 Last updated: 2015-09-11

Open Access in DiVA

No full text

Other links

Publisher's full textPubMedArticle web page

Search in DiVA

By author/editor
Lammi, Mikko
In the same journal
Archives of Biochemistry and Biophysics
Cell and Molecular BiologyBiochemistry and Molecular Biology

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 33 hits
ReferencesLink to record
Permanent link

Direct link