| Title: | High producer variant of lipoprotein lipase may protect from hepatocellular carcinoma in alcohol-associated cirrhosis |
| Journal: | JHEP Reports |
| Published: | 25 Jan 2023 |
| Pubmed: | https://pubmed.ncbi.nlm.nih.gov/36879887/ |
| DOI: | https://doi.org/10.1016/j.jhepr.2023.100684 |
| URL: | http://www.jhep-reports.eu/article/S2589555923000150/pdf |
| Citations: | 5 (5 in last 2 years) as of 8 Aug 2024 |
Publication 11004
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Abstract
Background & Aims: Progression of alcohol-associated liver disease (ALD) is driven by genetic predisposition. The rs13702 variant in the lipoprotein lipase (LPL) gene is linked to non-alcoholic fatty liver disease. We aimed at clarifying its role in ALD.</p>
Methods: Patients with alcohol-associated cirrhosis, with (n = 385) and without hepatocellular carcinoma (HCC) (n = 656), with HCC attributable to viral hepatitis C (n = 280), controls with alcohol abuse without liver damage (n = 366), and healthy controls (n = 277) were genotyped regarding the LPL rs13702 polymorphism. Furthermore, the UK Biobank cohort was analysed. LPL expression was investigated in human liver specimens and in liver cell lines.</p>
Results: Frequency of the LPL rs13702 CC genotype was lower in ALD with HCC in comparison to ALD without HCC both in the initial (3.9% vs. 9.3%) and the validation cohort (4.7% vs. 9.5%; p <0.05 each) and compared with patients with viral HCC (11.4%), alcohol misuse without cirrhosis (8.7%), or healthy controls (9.0%). This protective effect (odds ratio [OR] = 0.5) was confirmed in multivariate analysis including age (OR = 1.1/year), male sex (OR = 3.0), diabetes (OR = 1.8), and carriage of the PNPLA3 I148M risk variant (OR = 2.0). In the UK Biobank cohort, the LPL rs13702 C allele was replicated as a risk factor for HCC. Liver expression of LPL mRNA was dependent on LPL rs13702 genotype and significantly higher in patients with ALD cirrhosis compared with controls and alcohol-associated HCC. Although hepatocyte cell lines showed negligible LPL protein expression, hepatic stellate cells and liver sinusoidal endothelial cells expressed LPL.</p>
Conclusions: LPL is upregulated in the liver of patients with alcohol-associated cirrhosis. The LPL rs13702 high producer variant confers protection against HCC in ALD, which might help to stratify people for HCC risk.</p>
Impact and implications: Hepatocellular carcinoma is a severe complication of liver cirrhosis influenced by genetic predisposition. We found that a genetic variant in the gene encoding lipoprotein lipase reduces the risk for hepatocellular carcinoma in alcohol-associated cirrhosis. This genetic variation may directly affect the liver, because, unlike in healthy adult liver, lipoprotein lipase is produced from liver cells in alcohol-associated cirrhosis.</p>
17 Authors
- Franziska Schmalz
- Janett Fischer
- Hamish Innes
- Stephan Buch
- Christine Möller
- Madlen Matz-Soja
- Witigo von Schönfels
- Benjamin Krämer
- Bettina Langhans
- Alexandra Klüners
- Michael Soyka
- Felix Stickel
- Jacob Nattermann
- Christian P. Strassburg
- Thomas Berg
- Philipp Lutz
- Hans Dieter Nischalke
1 Application
| Application ID | Title |
|---|---|
| 8764 | The epidemiology of liver disease in a population-based cohort. |
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