ArticleActa veterinaria Scandinavica2014
Carnitine transporter OCTN2 and carnitine uptake in bovine kidney cells is regulated by peroxisome proliferator-activated receptor β/δ.
Article in Acta veterinaria Scandinavica, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 9 citations in OpenAlex.
- Serum Metabolomic Profiling Reveals Potential Mechanisms and Biomarkers of Seladelpar Treatment in Patients With Primary Biliary Cholangitis.PPAR research · 2026Article
- PGC-1α and MEF2 Regulate the Transcription of the Carnitine Transporter OCTN2 Gene in C2C12 Cells and in Mouse Skeletal Muscle.International journal of molecular sciences · 2022Article
- The Link Between the Mitochondrial Fatty Acid Oxidation Derangement and Kidney Injury.Frontiers in physiology · 2020Review
- SLC22A5 (OCTN2) Carnitine Transporter-Indispensable for Cell Metabolism, a Jekyll and Hyde of Human Cancer.Molecules (Basel, Switzerland) · 2019Review
- Pharmacological doses of niacin stimulate the expression of genes involved in carnitine uptake and biosynthesis and improve the carnitine status of obese Zucker rats.BMC pharmacology & toxicology · 2014Article
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4 authors at 1 institution in 1 country.
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Abstract
backgroundPeroxisome proliferator-activated receptor α (PPARα), a central regulator of fatty acid catabolism, has recently been shown to be a transcriptional regulator of the gene encoding the carnitine transporter novel organic cation transporter 2 (OCTN2) in cattle. Whether PPARβ/δ, another PPAR subtype, which has partially overlapping functions as PPARα and is known to share a large set of common target genes with PPARα, also regulates OCTN2 and carnitine transport in cattle is currently unknown. To close this gap of knowledge, we studied the effect of the PPARβ/δ activator GW0742 on mRNA and protein levels of OCTN2 and carnitine uptake in the presence and absence of the PPARβ/δ antagonist GSK3787 in the bovine Madin-Darby bovine kidney (MDBK) cell line.
findingsTreatment of MDBK cells with GW0742 caused a strong increase in the mRNA level of the known bovine PPARβ/δ target gene CPT1A in MDBK cells indicating activation of PPARβ/δ. The mRNA and protein level of OCTN2 was clearly elevated in MDBK cells treated with GW0742, but the stimulatory effect of GW0742 on mRNA and protein level of OCTN2 was completely blocked by GSK3787. In addition, GW0742 increased Na⁺-dependent carnitine uptake, which is mediated by OCTN2, into MDBK cells, whereas treatment of cells with the PPARβ/δ antagonist completely abolished the stimulatory effect of GW0742 on carnitine uptake.
conclusionsThe present study shows for the first time that gene expression of the carnitine transporter OCTN2 and carnitine transport are regulated by PPARβ/δ in bovine cells. These novel findings extend the knowledge about the molecular regulation of the OCTN2 gene and carnitine transport in cattle and indicate that regulation of OCTN2 gene expression and carnitine transport is not restricted to the PPARα subtype.
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