ArticleGene expression1996
Characterization of mouse fibronectin alternative mRNAs reveals an unusual isoform present transiently during liver development.
Article in Gene expression, 1996. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
1 citing paper in PubMed, 8 citations in OpenAlex.
- Hepatitis B virus-mediated changes of apolipoprotein mRNA abundance in cultured hepatoma cells.Journal of virology · 2003Article
Corrections and comments
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
Abstract
Fibronectins are found in many extracellular matrices as well as being abundant plasma proteins. The plasma isoforms of fibronectin, which are synthesized in the adult by liver hepatocytes, differ from those derived from most other cells and tissues due to alternative mRNA splicing. Studies in several vertebrates have indicated that FN alternative splicing is regulated spatially and temporally during development. The mouse represents an attractive organism in which to study the regulation of fibronectin splicing during development, but the patterns of fibronectin alternative splicing were not known for this species. Mouse fibronectin cDNA clones were isolated and sequenced, revealing > 95% identity with rat fibronectin at the amino acid level; all three segments that undergo alternative splicing are well conserved. RNase protection and RT-PCR were used to determine the patterns of alternative splicing that occur in fibroblasts and adult liver, sources of cellular and plasma fibronectins. Only A-B-mRNAs were detected in liver, and three V region variants were observed, corresponding to the protein isoforms V120, V95, and V0. Fibroblasts produced mRNAs that were heterogeneous for A and B splicing, but all RNAs contained V120. These patterns contrast with the embryonic form (B+A+V120). Characterization of fibronectin mRNAs from livers of fetal and newborn mice revealed that a significant level of B+ mRNA was present throughout late gestation, declining at birth. Little A+ mRNA was present, and the adult liver V region pattern was observed at all stages. Thus, fibronectin splicing changes during liver development are noncoordinate. One consequence of this temporal regulation is the transient synthesis of B+ mRNAs, including a novel isoform, B+A-V0.
Indexed as
Identifiers
9041121PMC6148308W2405349894What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.