Abstract:
:Culturing human fibroblasts in a three-dimensional collagen matrix leads to a reduction of collagen I by more than 90%, both on the level of mRNA steady-state as well as protein. In order to differentiate changes in de novo transcription and posttranscriptional control, nuclear run on assays and pulse/chase experiments determining mRNA stability were used. Our results indicate that de novo transcription of the COL1A1 gene and pro-alpha 1 (I)collagen mRNA half-life are both decreased by 50% in fibroblasts grown in three-dimensional collagen lattices as compared to monolayer cultures. The extracellular matrix therefore elicits signals which are transduced from the cell surface to the inside of fibroblasts resulting in a specific reprogramming of transcriptional as well as posttranscriptional processes.
journal_name
FEBS Lettjournal_title
FEBS lettersauthors
Eckes B,Mauch C,Hüppe G,Krieg Tdoi
10.1016/0014-5793(93)80006-gsubject
Has Abstractpub_date
1993-03-01 00:00:00pages
129-33issue
2eissn
0014-5793issn
1873-3468pii
0014-5793(93)80006-Gjournal_volume
318pub_type
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