ArticleJournal of animal science2024
Glucose inhibits the inflammatory response in goose fatty liver by increasing the ubiquitination level of PKA.
Article in Journal of animal science, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Article
- Review
- Impacts of feeding different lipid sources on serum biochemical indices, dietary fatty acid metabolism, raw foie gras quality characteristics and gene expression related to fat deposition in the Landes goose.Animal nutrition (Zhongguo xu mu shou yi xue hui) · 2025Article
- Study on the effect of different types of sugar on proliferation and inflammatory in goose fatty liver.Frontiers in veterinary science · 2025Article
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8 authors.
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Abstract
Protein kinase A (PKA) plays an important role in cellular life activities. Recently, PKA was found to bind to the inhibitor of nuclear factor-kappaB (IκB), a key protein in the nuclear factor-kappaB (NF-κB) pathway, to form a complex involved in the regulation of inflammatory response. However, the role of PKA in the anti-inflammatory of goose fatty liver is still unclear. A total of 14 healthy 70-d-old male Lander geese were randomly divided into a control group and an overfeeding group. Inflammation level was analyzed by histopathological method in the liver. The mRNA and protein abundance of PKA and tumor necrosis factor-alpha (TNFα), as well as the ubiquitination level of PKA, were detected. Moreover, goose primary hepatocytes were cotreated with glucose, harringtonine, and carbobenzoxy-l-leucyl-l-leucyl-l-leucinal (MG132). Finally, the co-immunoprecipitated samples of PKA from the control and overfeeding group were used for protein mass spectrometry. The results showed that no difference in PKA mRNA expression was observed (P > 0.05), while the PKA protein level in the overfed group was significantly reduced (P < 0.05) when compared with the control group. The ubiquitination level of PKA was higher than that of the control group in fatty liver. The mRNA expression of PKA was elevated but protein abundance was reduced in goose primary hepatocytes with 200 mmol/L glucose treatment (P < 0.05). The PKA protein abundance was dramatically reduced in hepatocytes treated with harringtonine (P < 0.01) when compared with the glucose-supplemented group. Nevertheless, MG132 tended to alleviate the inhibitory effect of harringtonine on PKA protein abundance (P = 0.081). There was no significant difference in TNFα protein level among glucose-treated groups and control (P > 0.05). Protein mass spectrometry analysis showed that 29 and 76 interacting proteins of PKA were screened in goose normal and fatty liver, respectively. Validation showed that PKA interacted with the E3 ubiquitination ligases ring finger protein 135 (RNF135) and potassium channel modulatory factor 1 (KCMF1). In summary, glucose may inhibit the inflammatory response in goose fatty liver by increasing the ubiquitination level of PKA. Additionally, RNF135 and KCMF1 may be involved in the regulation of PKA ubiquitination level as E3 ubiquitination ligases.
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