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Chuang CC, Yang YS, Kornelius E, Huang CN, Hsu MY, Lee CY, Yang SF. Impact of Long Noncoding RNA LINC00673 Genetic Variants on Susceptibility to Diabetic Retinopathy. Front Genet 2022; 13:889530. [PMID: 35547254 PMCID: PMC9081725 DOI: 10.3389/fgene.2022.889530] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 03/24/2022] [Indexed: 01/28/2023] Open
Abstract
Long noncoding RNAs (lncRNAs) have been proven to play critical roles in diabetic retinopathy (DR). This study investigated whether the single nucleotide polymorphism (SNP) of long intergenic noncoding RNA 00673 (LINC00673) affects the clinical characteristics of diabetic retinopathy (DR). A total of three loci of LINC00673 SNPs (rs6501551, rs9914618, and rs11655237) were genotyped using TaqMan allelic discrimination in 276 and 454 individuals with and without DR, respectively. Our results revealed that LINC00673 SNP rs11655237 CT genotype (AOR: 1.592, 95% CI: 1.059–2.395, p = 0.026), CT + TT genotype (AOR: 1.255, 95% CI: 1.029–1.531, p = 0.025), and allele T (AOR: 1.185, 95% CI: 1.004–1.397, p = 0.044) yielded higher ratios in the non-proliferative diabetic retinopathy (NPDR) subgroup than in the non-DR group. Furthermore, the interval of diabetes mellitus (DM) was significantly shorter in the LINC00673 SNP rs11655237 CT + TT variant than that in the LINC00673 SNP rs11655237 wild type (10.44 ± 7.10 vs. 12.98 ± 8.34, p = 0.009). In conclusion, the LINC00673 SNP rs11655237 T allele is associated with a higher probability of NPDR development. Patients with the LINC00673 SNP rs11655237 CT + TT variant exhibited a short DM interval.
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Affiliation(s)
- Chih-Chun Chuang
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan.,Department of Ophthalmology, Changhua Christian Hospital, Changhua, Taiwan
| | - Yi-Sun Yang
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan.,Department of Internal Medicine, Division of Endocrinology and Metabolism, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Edy Kornelius
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan.,Department of Internal Medicine, Division of Endocrinology and Metabolism, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Chien-Ning Huang
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan.,School of Medicine, Chung Shan Medical University, Taichung, Taiwan.,Department of Internal Medicine, Division of Endocrinology and Metabolism, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Min-Yen Hsu
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan.,Department of Ophthalmology, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Chia-Yi Lee
- Department of Ophthalmology, Nobel Eye Institute, Taipei, Taiwan
| | - Shun-Fa Yang
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan.,Department of Medical Research, Chung Shan Medical University Hospital, Taichung, Taiwan
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Chen J, Li L, Zhou Y, Zhang J, Chen L. Gambogic acid ameliorates high glucose- and palmitic acid-induced inflammatory response in ARPE-19 cells via activating Nrf2 signaling pathway: ex vivo. Cell Stress Chaperones 2021; 26:367-375. [PMID: 33245515 PMCID: PMC7925800 DOI: 10.1007/s12192-020-01182-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 09/02/2020] [Accepted: 11/17/2020] [Indexed: 12/11/2022] Open
Abstract
Diabetic retinopathy (DR) is a serious microvascular complication of diabetes. Gambogic acid has been reported to have anti-inflammatory effect. However, the effect of GA on inflammatory response of ARPE-19 cells remains unclear. In our study, ARPE-19 cells were stimulated by palmitic acid (PA) induction in the presence of 30 mM glucose and then treated with 0.5, 1, 2, 5, 10, or 20 μM GA. CCK-8 assay showed that cell viability was increased by GA treatment at doses of 0.5, 1, and 2 μM instead of higher doses. ELISA analysis found that GA dose-dependently reduced the production of pro-inflammatory mediators TNF-α and IL-1β. Western blot indicated that GA downregulated the expression of NLRP3 inflammasome components including TXNIP, NLRP3, ASC, cleaved-caspase-1, and cleaved-IL-1β in a dose-dependent manner. In addition, Western blot and immunofluorescence analysis suggested that GA effectively increased the protein level of nuclear factor E2-related factor-2 (Nrf2). RT-qPCR showed that GA significantly increased the mRNA levels of Heme oxygenase-1 (HO-1) and NADPH:quinone oxidoreductase1 (NQO1). Furthermore, Nrf2 siRNA transfection confirmed the above effects of GA. In total, subtoxic doses of GA significantly flattened the inflammatory response induced by HG and PA in ARPE-19 cells via modulating the Nrf2 signaling pathway.
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Affiliation(s)
- Jun Chen
- Department of Ophthalmology, The First Hospital of China Medical University, 155 North Nanjing Street, Shenyang, 110001, People's Republic of China
| | - Lihua Li
- Department of Ophthalmology, The First Hospital of China Medical University, 155 North Nanjing Street, Shenyang, 110001, People's Republic of China
| | - Yun Zhou
- Department of Ophthalmology, The First Hospital of China Medical University, 155 North Nanjing Street, Shenyang, 110001, People's Republic of China
| | - Jiahua Zhang
- Department of Ophthalmology, The First Hospital of China Medical University, 155 North Nanjing Street, Shenyang, 110001, People's Republic of China
| | - Lei Chen
- Department of Ophthalmology, The First Hospital of China Medical University, 155 North Nanjing Street, Shenyang, 110001, People's Republic of China.
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