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Zhu H, Wang Y, Wang G, Ling Y, Tian J, Zhou Y, Zhu R, Wang R, Wang R, Zhang W, Zhang X. The circular RNA hsa_circ_0045800 serves as a favorable biomarker in pathogenesis of sjögren's syndrome. Clin Rheumatol 2024:10.1007/s10067-024-06999-0. [PMID: 38866992 DOI: 10.1007/s10067-024-06999-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 04/08/2024] [Accepted: 04/25/2024] [Indexed: 06/14/2024]
Abstract
BACKGROUND Circular RNAs (circRNAs) play various roles in the development of many autoimmune diseases. However, their expression profiles and specific function in Sjögren's Syndrome remains largely unknown. OBJECTIVES We aimed to investigate circRNAs potential diagnostic value in primary Sjögren's syndrome (pSS) and contribution to the pathogenesis of pSS. METHODS This study included 102 subjects, 51 pSS patients and 51 healthy controls. The concentration of hsa_circ_0045800 was analyzed in peripheral blood mononuclear cells obtained from 51 pSS patients and 51 healthy controls by qRT-PCR. We established a receiver operating characteristic curve (ROC) to assess the biological diagnostic value of hsa_circ_0045800 for pSS. In addition, we analyzed the correlation between hsa_circ_0045800 and disease activity in Sjogren's syndrome. A differential analysis was also conducted on the concentration of hsa_circ_0045800 in patients in pSS patients before and after treatment. We studied the downstream mechanism of hsa_circ_0045800 through bioinformatics analysis and confirmed it using luciferase reporter gene assay. RESULTS We confirmed that the concentration of hsa_circ_0045800 was elevated 10.4-fold in peripheral blood mononuclear cells of pSS patients than in healthy controls (p = 0.00). In the pSS active disease group, the concentration of hsa_circ_0045800 is 2.5-fold higher compared to the pSS non-active disease group (p = 0.04). The concentration of hsa_circ_0045800 after treatment was decreased by 80% compared with that before treatment (p = 0.037), suggesting its utility as a potential marker for monitoring treatment efficacy. ROC curve analysis showed that the diagnostic value of hsa_circ_0045800 in pSS patients was significantly higher than that in healthy controls, with an area under the curve of 0.865, a sensitivity of 74%, and a specificity of 92%. The concentration of hsa_circ_0045800 is correlated with various clinical factors: the concentration of hsa_circ_0045800 is positively associated with age (r = 0.328, P = 0.019), oral dryness (r = 0.331, P = 0.017), while it is negatively correlated with HGB (r = -0.435, P = 0.001) and and hypothyroidism (r = -0.318, P = 0.023). Bioinformatics predictions and luciferase assays indicated that hsa_circ_0045800 acts as a molecular sponge for miR-1247-5p, with SMAD2 being a target gene of miR-1247-5p. CONCLUSION Our study results show that hsa_circ_0045800 potentially contributes to the development and progression of pSS via the miR-1247-5p/SMAD2 pathway. Peripheral blood mononuclear cells are directly involved in the pathogenesis of pSS, and the discovery of hsa_circ_0045800 in peripheral blood mononuclear cells highlights its potential as a novel biomarker for disease activity and diagnosis in patients with pSS. Key Points • The concentration of hsa_circ_0045800 was higher in peripheral blood mononuclear cells of pSS patients. • Hsa_circ_0045800 promoted pSS progression through miR-1247-5p-SMAD2 axis. • Hsa_circ_0045800 is a potential biomarker for pSS.
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Affiliation(s)
- Hong Zhu
- Department of Rheumatology, General Hospital of Ningxia Medical University, Yinchuan 750004, Ningxia, China
| | - Yi Wang
- The Second Department of Internal Medicine, Ningxia Gem Flower Hospital, Yinchuan 750006, Ningxia, China
| | - Ge Wang
- University of Health and Rehabilitation Sciences, Qingdao Municipal Hospital Group, Qingdao 266000, Shandong, China
| | - Yitong Ling
- Department of Neurology, Jinan University First Afliated Hospital, Guangzhou 510000, Guangdong, China
| | - Jinhai Tian
- Biochip Center, General Hospital of Ningxia Medical University, Yinchuan 750004, Ningxia, China
| | - Yan Zhou
- Department of Rheumatology, General Hospital of Ningxia Medical University, Yinchuan 750004, Ningxia, China
| | - Rong Zhu
- Department of Rheumatology, General Hospital of Ningxia Medical University, Yinchuan 750004, Ningxia, China
| | - Rui Wang
- First Clinical Medical College of Ningxia Medical University, Yinchuan 750004, Ningxia, China
| | - Ruixin Wang
- First Clinical Medical College of Ningxia Medical University, Yinchuan 750004, Ningxia, China
| | - Wenhui Zhang
- Department of Intensive Care Unit Ward, Rizhao People's Hospital, Rizhao, Shandong, China.
| | - Xiaoyu Zhang
- Department of Infectious Diseases, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510000, Guangdong, China.
- Guangdong Provincial Key Laboratory of Liver Disease Research, Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510000, Guangdong, China.
- Central Laboratory, Rizhao People's Hospital, Rizhao, China.
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