Related Experiment Video
Updated: May 10, 2025
09:40
Novel Sequence Discovery by Subtractive Genomics
Published on: January 25, 2019
8.5K
Discovery of Novel APOC3 Isoforms in Hepatic and Intestinal Cell Models Using Long-Read RNA Sequencing.
Kara Farstad-O'Halloran1, Anuradha Sooda1, Tooba Iqbal1
1Personalised Medicine Centre, Health Futures Institute, Murdoch University, Murdoch, Perth, WA 6150, Australia.
Genes
|April 26, 2025
Summary
Researchers discovered three new Apolipoprotein C-III (APOC3) splicing variants in liver and intestinal cells. These novel APOC3 isoforms may offer new therapeutic targets for managing triglyceride metabolism and cardiovascular disease risk.
Area of Science:
- Molecular biology
- Genetics
- Cardiovascular disease research
Background:
- Apolipoprotein C-III (APOC3) is critical for triglyceride metabolism.
- Elevated APOC3 levels are linked to higher triglycerides and atherosclerosis risk.
- APOC3 expression is a potential therapeutic target for cardiovascular diseases.
Purpose of the Study:
- To identify and characterize novel APOC3 transcript isoforms.
- To investigate the expression of APOC3 isoforms in different cell models.
Main Methods:
- Analysis of long-read RNA sequencing data from liver cell lines and tissue.
- Validation of novel isoforms using RT-PCR and Sanger sequencing.
- Examination of APOC3 splicing patterns in intestinal cell models.
Main Results:
- Three novel APOC3 splicing variants were identified, all derived from the MANE transcript APOC3-201.
- Two isoforms (1 and 2) showed variations in exon 1 splicing.
- A third isoform lacked exon 2, which contains the translation start codon.
- Similar APOC3 splicing patterns were observed in Caco-2 cells, indicating non-liver specificity.
Conclusions:
- Three novel APOC3 isoforms were discovered in both hepatic and intestinal cell models.
- The functional significance of these novel isoforms requires further investigation.
- Understanding these isoforms may contribute to regulating APOC3 gene expression.
Keywords:
apolipoprotein C-III (APOC3)cardiovascular diseaselong-read RNA sequencingnovel transcript isoformstriglyceride metabolismMore Related Videos
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