These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Hyaluronan affects protein and collagen synthesis by in vitro human skin fibroblasts.
    Author: Croce MA, Dyne K, Boraldi F, Quaglino D, Cetta G, Tiozzo R, Pasquali Ronchetti I.
    Journal: Tissue Cell; 2001 Aug; 33(4):326-31. PubMed ID: 11521947.
    Abstract:
    Given the importance of hyaluronan (HA) for the homeostasis of connective tissues during embryogenesis and aging and its role in tissue repair, the aim of the present study was to examine the effect of exogenous HA on the synthesis of total protein, collagen and HA by in vitro human dermal fibroblasts. With differences between different cell strains, HA, at concentrations between 0.5 and 1 microM, induced a significant decrease in total protein synthesised and secreted into the medium compared to controls (P < 0.05), and particularly in collagen (-40%; P < 0.05). The ratios between collagen types I and III and between collagen types V and I were normal. Pulse and chase experiments showed that protein degradation was normal. The presence of exogenous HA did not affect HA synthesis. Data strongly indicate that a relatively high concentration of HA in the extracellular space, such as during development and in the first phases of tissue repair, would partially limit the deposition of the extracellular matrix, and of collagen in particular. This would suggest a role for HA in delaying tissue differentiation during embryogenesis and in preventing fibrosis and scar formation in fetus and in the early phases of wound healing.
    [Abstract] [Full Text] [Related] [New Search]