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Valdecoxib attenuates lipid-induced hepatic steatosis through autophagy-mediated suppression of endoplasmic reticulum stress
This study investigated the effects of VAL on lipid accumulation and lipogenesis in human primary hepatocytes. Treatment with VAL suppressed lipid accumulation and expressions of lipogenic genes, such as processed sterol regulatory element binding proteins (SREBP1) and stearoyl-CoA desaturase-1 (SCD1) in palmitate-treated hepatocytes. Furthermore, VAL ameliorated dose-dependently palmitate-induced ER stress markers. Treatment of hepatocytes with VAL increased AMPK phosphorylation and SIRT6 expression. siRNA-mediated suppression of AMPK or SIRT6 abolished the effects of VAL on lipid accumulation, lipogenesis, and endoplasmi...
Source: Biochemical Pharmacology - March 31, 2022 Category: Drugs & Pharmacology Authors: Seung Yeon Park Wonjun Cho A M Abd El-Aty Ahmet Hacimuftuoglu Ji Hoon Jeong Tae Woo Jung Source Type: research

TonEBP Suppresses the HO-1 Gene by Blocking Recruitment of Nrf2 to Its Promoter
Discussion Dynamic changes in the functional phenotype of macrophages are associated with pathogenesis of inflammatory diseases (5–7). TonEBP primes macrophages toward an M1 phenotype, which has pro-inflammatory properties. TonEBP does this by promoting expression of pro-inflammatory genes via interaction with NF-κB (36) and by binding directly to the promoter (37, 64). In addition, TonEBP suppresses expression of the anti-inflammatory cytokine IL-10 by limiting chromatin access to the promoter (37). The pro-inflammatory function of TonEBP suggests that inhibiting its expression or activation could suppres...
Source: Frontiers in Immunology - April 17, 2019 Category: Allergy & Immunology Source Type: research

Genetic Regulation of Liver Metabolites and Transcripts Linking to Biochemical-Clinical Parameters
Conclusion In summary, this study is the first to combine metabolomics, transcriptomics, and genome-wide association studies in a porcine model. Our results improve understanding of the genetic regulation of metabolites which link to transcripts and finally biochemical-clinical parameters. Further, high-performance profiling of metabolites as intermediate phenotypes is a potentially powerful approach to uncover how genetic variation affects metabolic and health status. Our results advance knowledge in areas of biomedical and agricultural interest and identify potential correlates of biomarkers, SNPs-metabolites, SNPs-tran...
Source: Frontiers in Genetics - April 16, 2019 Category: Genetics & Stem Cells Source Type: research

Functional characterisation of ADP ribosylation factor-like protein 15 in rheumatoid arthritis synovial fibroblasts.
CONCLUSIONS: This first report on ARL15 expression in RASF and its likely role in inflammation and metabolic syndromes through a TNF independent pathway, encourages hypothesis-free studies to identify additional pathways underlying RA disease biology. PMID: 29465355 [PubMed - as supplied by publisher]
Source: Clinical and Experimental Rheumatology - February 24, 2018 Category: Rheumatology Tags: Clin Exp Rheumatol Source Type: research

TXNDC5 Contributes to Rheumatoid Arthritis by Down ‐regulating IGFBP1 Expression
This study investigated whether TXNDC5 contributes to RA via the insulin signaling pathway. In the study, RA synovial fibroblast‐like cells (RASFs) transfected with an anti‐TXNDC5 small interfering RNA (siRNA) were analyzed with an Insulin Signaling Pathway RT2 Profiler PCR Array and an Insulin Resistance RT2 Profiler PCR Array. The PCR arrays detected significantly increased expression of insulin‐like growth factor binding protein 1 (IGFBP1) in RASFs with suppressed TXNDC5 expression. The result was verified using real‐time PCR and western blot analyses. Significantly elevated IGFBP1 expression and decreased IL‐...
Source: Clinical and Experimental Immunology - November 13, 2017 Category: Allergy & Immunology Authors: Jian Li, Bing Xu, Changsun Wu, Xinfeng Yan, Lei Zhang, Xiaotian Chang Tags: Original Article Source Type: research

TXNDC5 Contributes to Rheumatoid Arthritis by Down-regulating IGFBP1 Expression.
This study investigated whether TXNDC5 contributes to RA via the insulin signaling pathway. In the study, RA synovial fibroblast-like cells (RASFs) transfected with an anti-TXNDC5 small interfering RNA (siRNA) were analyzed with an Insulin Signaling Pathway RT(2) Profiler PCR Array and an Insulin Resistance RT(2) Profiler PCR Array. The PCR arrays detected significantly increased expression of insulin-like growth factor binding protein 1 (IGFBP1) in RASFs with suppressed TXNDC5 expression. The result was verified using real-time PCR and western blot analyses. Significantly elevated IGFBP1 expression and decreased IL-6 secr...
Source: Clinical and Developmental Immunology - November 13, 2017 Category: Allergy & Immunology Authors: Li J, Xu B, Wu C, Yan X, Zhang L, Chang X Tags: Clin Exp Immunol Source Type: research