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Yang D, Zhou H, Qin W. High systemic inflammatory response index (SIRI) is an independent risk factor for poor outcome in IgA nephropathy patients. Int Urol Nephrol 2024:10.1007/s11255-024-04171-w. [PMID: 39060722 DOI: 10.1007/s11255-024-04171-w] [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: 11/30/2023] [Accepted: 06/27/2024] [Indexed: 07/28/2024]
Abstract
BACKGROUND The systemic inflammatory response index (SIRI), a straightforward and easily accessible measure of inflammation and prognosis, has drawn more attention lately. It is unknown, however, if SIRI is important for IgA nephropathy (IgAN) patients' outcomes. To better clarify these concerns, we conducted this investigation. METHOD This retrospective study involved 981 patients with biopsy-confirmed IgAN from West China Hospital of Sichuan University between 2008 and 2019. The patients were divided into two groups based on the SIRI's optimal cut-off value calculated by the X-tile: the low SIRI group (SIRI ≤ 0.63, n = 312) and the high SIRI group (SIRI > 0.63, n = 669). Basic clinical characteristics at the time of renal biopsy were evaluated, and the relationship between SIRI and the combined endpoint was analyzed. We also used the Cox proportional hazard model and Kaplan‒Meier curve to evaluate the renal prognosis of IgAN. RESULTS A total of 981 IgAN patients were included. During a median follow-up period of 56.7 months (36.8-80.4 months), 122 patients progressed to the combined endpoint (12.4%). Patients were divided into a low SIRI group (SIRI ≤ 0.63, n = 312) and a high SIRI group (SIRI > 0.63, n = 669) according to the optimal cut-off value of the systemic inflammatory response index (SIRI). Further analysis showed that a higher SIRI value was significantly associated with the risk of IgAN patients reaching the composite endpoint (HR 1.62, 95% CI 1.02-2.56, p = 0.041). CONCLUSION High SIRI is a significant and independent risk factor for renal disease progression in IgAN patients.
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Affiliation(s)
- Dandan Yang
- Department of Nephrology, West China Hospital of Sichuan University, Chengdu, 610041, China
- West China School of Medicine, Sichuan University, Guoxue Alley 37, Chengdu, 610041, Sichuan, China
| | - Huan Zhou
- Department of Nephrology, West China Hospital of Sichuan University, Chengdu, 610041, China
- West China School of Medicine, Sichuan University, Guoxue Alley 37, Chengdu, 610041, Sichuan, China
| | - Wei Qin
- Department of Nephrology, West China Hospital of Sichuan University, Chengdu, 610041, China.
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2
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Yates AG, Pink RC, Erdbrügger U, Siljander PR, Dellar ER, Pantazi P, Akbar N, Cooke WR, Vatish M, Dias‐Neto E, Anthony DC, Couch Y. In sickness and in health: The functional role of extracellular vesicles in physiology and pathology in vivo: Part II: Pathology: Part II: Pathology. J Extracell Vesicles 2022; 11:e12190. [PMID: 35041301 PMCID: PMC8765328 DOI: 10.1002/jev2.12190] [Citation(s) in RCA: 48] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 09/03/2021] [Accepted: 09/15/2021] [Indexed: 02/06/2023] Open
Abstract
It is clear from Part I of this series that extracellular vesicles (EVs) play a critical role in maintaining the homeostasis of most, if not all, normal physiological systems. However, the majority of our knowledge about EV signalling has come from studying them in disease. Indeed, EVs have consistently been associated with propagating disease pathophysiology. The analysis of EVs in biofluids, obtained in the clinic, has been an essential of the work to improve our understanding of their role in disease. However, to interfere with EV signalling for therapeutic gain, a more fundamental understanding of the mechanisms by which they contribute to pathogenic processes is required. Only by discovering how the EV populations in different biofluids change-size, number, and physicochemical composition-in clinical samples, may we then begin to unravel their functional roles in translational models in vitro and in vivo, which can then feedback to the clinic. In Part II of this review series, the functional role of EVs in pathology and disease will be discussed, with a focus on in vivo evidence and their potential to be used as both biomarkers and points of therapeutic intervention.
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Affiliation(s)
- Abi G. Yates
- Department of PharmacologyUniversity of OxfordOxfordUK
- School of Biomedical SciencesFaculty of MedicineUniversity of QueenslandSt LuciaAustralia
| | - Ryan C. Pink
- Department of Biological and Medical SciencesFaculty of Health and Life SciencesOxford Brookes UniversityOxfordUK
| | - Uta Erdbrügger
- Department of Medicine, Division of NephrologyUniversity of VirginiaCharlottesvilleVirginiaUSA
| | - Pia R‐M. Siljander
- Molecular and Integrative Biosciences Research ProgrammeFaculty of Biological and Environmental SciencesUniversity of HelsinkiHelsinkiFinland
| | - Elizabeth R. Dellar
- Department of Biological and Medical SciencesFaculty of Health and Life SciencesOxford Brookes UniversityOxfordUK
| | - Paschalia Pantazi
- Department of Biological and Medical SciencesFaculty of Health and Life SciencesOxford Brookes UniversityOxfordUK
| | - Naveed Akbar
- Division of Cardiovascular Medicine, Radcliffe Department of MedicineUniversity of OxfordOxfordUK
| | - William R. Cooke
- Nuffield Department of Women's and Reproductive HealthJohn Radcliffe Hospital, HeadingtonOxfordUK
| | - Manu Vatish
- Nuffield Department of Women's and Reproductive HealthJohn Radcliffe Hospital, HeadingtonOxfordUK
| | - Emmanuel Dias‐Neto
- Laboratory of Medical Genomics. A.C. Camargo Cancer CentreSão PauloBrazil
- Laboratory of Neurosciences (LIM‐27) Institute of PsychiatrySão Paulo Medical SchoolSão PauloBrazil
| | | | - Yvonne Couch
- Acute Stroke Programme ‐ Radcliffe Department of MedicineUniversity of OxfordOxfordUK
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Study on Protection of Human Umbilical Vein Endothelial Cells from Amiodarone-Induced Damage by Intermedin through Activation of Wnt/ β-Catenin Signaling Pathway. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:8889408. [PMID: 34434487 PMCID: PMC8382522 DOI: 10.1155/2021/8889408] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 06/07/2021] [Accepted: 07/06/2021] [Indexed: 02/07/2023]
Abstract
Amiodarone (AM) is one of the most effective antiarrhythmic drugs and normally administrated by intravenous infusion which is liable to cause serious phlebitis. The therapeutic drugs for preventing this complication are limited. Intermedin (IMD), a member of calcitonin family, has a broad spectrum of biological effects including anti-inflammatory effects, antioxidant activities, and antiapoptosis. But now, the protective effects of IMD against amiodarone-induced phlebitis and the underlying molecular mechanism are not well understood. In this study, the aim was to investigate the protective efficiency and potential mechanisms of IMD in amiodarone-induced phlebitis. The results of this study revealed that treatment with IMD obviously attenuated apoptosis and exfoliation of vascular endothelial cells and infiltration of inflammatory cells in the rabbit model of phlebitis induced by intravenous infusion of amiodarone compared with control. Further tests in vitro demonstrated that IMD lessened amiodarone-induced endothelial cell apoptosis, improved amiodarone-induced oxidative stress injury, reduced inflammatory reaction, and activated the Wnt/β-catenin signal pathway which was inhibited by amiodarone. And these effects could be reversed by Wnt/β-catenin inhibitor IWR-1-endo, and si-RNA knocked down the gene of Wnt pathway. These results suggested that IMD exerted the protective effects against amiodarone-induced endothelial injury via activating the Wnt/β-catenin pathway. Thus, IMD could be used as a potential agent for the treatment of phlebitis.
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Sun J, Qian P, Kang Y, Dai HB, Wang FZ, Wang HY, Zhou H, Gao Q, Zhou YB. Adrenomedullin 2 attenuates LPS-induced inflammation in microglia cells by receptor-mediated cAMP-PKA pathway. Neuropeptides 2021; 85:102109. [PMID: 33253929 DOI: 10.1016/j.npep.2020.102109] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 11/15/2020] [Accepted: 11/15/2020] [Indexed: 12/18/2022]
Abstract
Inflammation plays a critical role in the development of neurodegenerative diseases. Adrenomedullin 2 (AM2), a member of the calcitonin gene-related peptide family, has been known to have anti-inflammatory effects. Here, we evaluated the anti-inflammatory effects of AM2 in LPS-activated microglia and BV2 cells. The endogenous mRNA and protein expressions of AM2, calcitonin receptor-like receptor (CLR), receptor activity-modifying proteins (RAMPs) including RAMP1, RAMP2 and RAMP3 and the production of inflammatory mediators including tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β), cyclooxygenase-2 (COX-2) and inducible nitric oxide synthase (iNOS) were detected by RT-PCR and Western blot. Our results revealed that LPS (1 μg/mL) significantly stimulated CLR, RAMP1, RAMP2 and RAMP3 protein expressions in BV2 microglia cells, but AM2 had a significant decrease. However, the mRNA levels of AM2, CLR, and RAMP1/2/3 were all markedly increased. LPS also induced obvious increases in mRNA and protein levels of the inflammatory mediators (TNF-α, IL-1β, COX2 and iNOS). More importantly, AM2 (10 nM) administration effectively inhibited the mRNA and protein expressions of these mediators induced by LPS and increased the cAMP content in LPS-stimulated BV2 cells. Furthermore, the antagonism with AM2 receptor antagonist IMD17-47, adrenomedullin (AM) receptor antagonist by AM22-52 or the inhibition of protein kinase A (PKA) activation by P1195 effectively prevented the inhibitory role of AM2 in LPS-induced production of the above inflammatory mediators. In conclusion, AM2 inhibits LPS-induced inflammation in BV2 microglia cells that may be mainly through AM receptor-mediated cAMP-PKA pathway. Our results indicate AM2 plays an important protective role in microglia inflammation, suggesting therapeutic potential for AM2 in neuroinflammation diseases caused by activated microglia.
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Affiliation(s)
- Jing Sun
- Department of Physiology, Nanjing Medical University, Nanjing 211166, China
| | - Pei Qian
- Department of Physiology, Nanjing Medical University, Nanjing 211166, China
| | - Ying Kang
- Department of Physiology, Nanjing Medical University, Nanjing 211166, China
| | - Hang-Bing Dai
- Department of Physiology, Nanjing Medical University, Nanjing 211166, China
| | - Fang-Zheng Wang
- Department of Physiology, Nanjing Medical University, Nanjing 211166, China
| | - Hong-Yu Wang
- Department of Physiology, Nanjing Medical University, Nanjing 211166, China
| | - Hong Zhou
- Department of Physiology, Nanjing Medical University, Nanjing 211166, China
| | - Qing Gao
- Department of Physiology, Nanjing Medical University, Nanjing 211166, China
| | - Ye-Bo Zhou
- Department of Physiology, Nanjing Medical University, Nanjing 211166, China.
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Jiang Z, Tan J, Wang S, Dong L, Han X, Tang Y, Qin W. Lower serum bilirubin is associated with poor renal outcome in IgA nephropathy patients. Int J Med Sci 2021; 18:2964-2970. [PMID: 34220324 PMCID: PMC8241783 DOI: 10.7150/ijms.60111] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 05/19/2021] [Indexed: 02/05/2023] Open
Abstract
Aims: IgA nephropathy (IgAN) is the most prevalent primary glomerulonephritis worldwide. We conducted this study to explore the relationship between serum bilirubin and renal outcome of patients with IgAN. Methods: A total of 1492 biopsy proven IgAN patients were recruited and divided into two groups according to their median serum bilirubin concentration: the low bilirubin group (serum bilirubin≤9.7umol/L, n=753) and high bilirubin group (serum bilirubin>9.7umol/L, n=739). Basic clinical characteristics were assessed at the time of renal biopsy and the relationships between serum bilirubin and the combined endpoints were analyzed. The combined endpoints were defined as a 50% decline in estimate glomerular filtration rate (e-GFR), end-stage kidney disease (ESKD), renal transplantation and/or death. In addition, propensity score matching (PSM) was then performed to improve balance and simulate randomization between patients in different groups. Kaplan-Meier survival analysis was applied to explore the role of serum bilirubin in the progression of IgAN. Three clinicopathological models of multivariate Cox regression analysis were established to evaluate the association of serum bilirubin and renal prognosis of IgAN. Results: During median 5-year follow-up period, significant differences were shown in Kaplan-Meier analysis. In the unmatched group, 189 (12.7%) patients progressed to the renal combined endpoints. Among this, 122 in 753 patients (16.2%) were in low bilirubin group and 67 in 739 patients (9.1%) were in high bilirubin group (p<0.001). After PSM, there were 134 (11.8%) patients reached the combined endpoints, which included 77 in 566 patients (14.6%) in low bilirubin group and 57 in 566 patients (10.1%) in high bilirubin group (p=0.039). The results of three models (including demographics, pathological, clinical indicators and serum bilirubin) demonstrated that a lower basic serum bilirubin level was significantly associated with a higher risk of reaching combined endpoints in IgAN patients both in unmatched and matched cohort. Conclusion: Serum bilirubin level may be negatively associated with the progression of IgAN.
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Affiliation(s)
- Zheng Jiang
- West China School of Medicine, Sichuan University
| | - Jiaxing Tan
- West China School of Medicine, Sichuan University
| | - Siqing Wang
- West China School of Medicine, Sichuan University
| | - Lingqiu Dong
- West China School of Medicine, Sichuan University
| | - Xin Han
- West China School of Medicine, Sichuan University
| | - Yi Tang
- Division of Nephrology, Department of Medicine, West China Hospital of Sichuan University
| | - Wei Qin
- Division of Nephrology, Department of Medicine, West China Hospital of Sichuan University
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Han X, Xiao Y, Tang Y, Zheng X, Anwar M, Qin W. Clinical and pathological features of immunoglobulin A nephropathy patients with nephrotic syndrome. Clin Exp Med 2019; 19:479-486. [PMID: 31542837 DOI: 10.1007/s10238-019-00580-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Accepted: 09/16/2019] [Indexed: 02/05/2023]
Abstract
IgA nephropathy (IgAN) is the most common glomerulonephritis worldwide. The classic manifestation of IgAN is episodic hematuria and proteinuria. Nephrotic syndrome (NS) is not very common in IgAN, reported to occur in only 5-10% of IgAN patients. However, the clinical and pathological characteristics and long-term outcomes of patients with NS-IgAN at onset remain unknown. A retrospective study was conducted, enrolling 1165 patients with biopsy-proven IgAN from West China Hospital in 2008-2015. Patients with renal biopsy of minimal change disease with mesangial IgA deposits were excluded. The renal endpoint was defined as 50% decrease in eGFR or progressing into end-stage renal disease (ESRD). A total of 1165 patients were enrolled with average age of 34.58, and 171 (14.7%) patients were presented with NS. Comparing NS and non-NS groups, significance differences were shown in hypertension (HTN), 24-h urine protein, serum albumin, serum creatine, eGFR and uric acid. NS group had severe pathological changes such as endocapillary hypercellularity, tubular atrophy or interstitial fibrosis and crescent, but less segmental glomerulosclerosis or adhesion and global sclerosis. During the average follow-up of 44.27 months, 29.8% (51/171) NS patients and 15.8% (157/994) non-NS patients progressed to the renal endpoint. 5-year renal survival rates were 73.1% and 87.8% (P < 0.001) in NS and non-NS groups, respectively. This study demonstrated that IgAN patients with NS had higher serum creatine, lower eGFR, lower uric acid, more acute lesions and poor prognosis. NS was an independent risk factor for progression to the renal endpoint.
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Affiliation(s)
- Xin Han
- Division of Nephrology, West China Hospital of Sichuan University, 37th Guoxuexiang Road, Chengdu, 610041, China
| | - Yi Xiao
- West China School of Medicine, West China Hospital of Sichuan University, Chengdu, China
| | - Yi Tang
- Division of Nephrology, West China Hospital of Sichuan University, 37th Guoxuexiang Road, Chengdu, 610041, China
| | - Xiaonan Zheng
- West China School of Medicine, West China Hospital of Sichuan University, Chengdu, China
| | - Mawluda Anwar
- West China School of Medicine, West China Hospital of Sichuan University, Chengdu, China
| | - Wei Qin
- Division of Nephrology, West China Hospital of Sichuan University, 37th Guoxuexiang Road, Chengdu, 610041, China.
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Deng F, Zhang J, Li Y, Wang W, Hong D, Li G, Feng J. Hirudin ameliorates immunoglobulin A nephropathy by inhibition of fibrosis and inflammatory response. Ren Fail 2019; 41:104-112. [PMID: 30880546 PMCID: PMC6427573 DOI: 10.1080/0886022x.2019.1583113] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Immunoglobulin A nephropathy (IgAN) is characterized by mesangial IgA and IgG co-deposition. As the clinical course of IgAN is highly variable, a lot of patients will eventually develop to end-stage renal disease (ESRD) within years. Hirudin, a potent and specific thrombin inhibitor, has been reported to treat IgAN with hematuria, but the mechanism is unclear. Our study aims to explore the potential of hirudin and the underlying mechanism in the treatment of IgAN. The establishment of IgAN model was set up in rats through oral and intravenous immunization with bovine gamma-globulin (BGG). Results suggested that hirudin could reduce the increased level of proteinuria, serum creatinine and urea nitrogen in IgAN models. Besides that, hirudin ameliorated the elevated number of apoptotic bodies and expressions of apoptosis-related proteins (caspase-3 and caspase-9) in IgAN model. The fibrosis indexes (transforming growth factor β-1 (TGF-β1), Collagen-IV (CoI-IV) and Fibronectin-1) of kidney were remarkably suppressed in IgAN rats treated with hirudin compared with IgAN rats with no further treatment. IgAN rats exhibited remarkably increased inflammatory factors (IL-1β, IL-6, and IL-18), while hirudin treatment significantly alleviated these alterations. Moreover, the reduced levels of CD4+CD25+Foxp3+ Treg and CD4+IFN-γ+ Th1/CD4+IL-4+ Th2 could be reversed by hirudin in IgAN model. Furthermore, in the process of IgAN, hirudin could inactivate various pathways (IκBα, NF-κB, TNF-α, and VCAM-1) compared with IgAN model group. Taken together, our study indicated that hirudin could ameliorate IgAN through suppressing fibrosis and inflammatory response. These findings provide a new therapeutic method to treat IgAN.
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Affiliation(s)
- Fei Deng
- a Department of Nephrology , Sichuan Academy of Medical Science & Sichuan Provincial People's Hospital , Chengdu , PR China
| | - Jingwei Zhang
- b Department of Laboratory Medicine , Chengdu Second People's Hospital , Chengdu , PR China
| | - Yi Li
- a Department of Nephrology , Sichuan Academy of Medical Science & Sichuan Provincial People's Hospital , Chengdu , PR China
| | - Wei Wang
- a Department of Nephrology , Sichuan Academy of Medical Science & Sichuan Provincial People's Hospital , Chengdu , PR China
| | - Daqing Hong
- a Department of Nephrology , Sichuan Academy of Medical Science & Sichuan Provincial People's Hospital , Chengdu , PR China
| | - Guisen Li
- a Department of Nephrology , Sichuan Academy of Medical Science & Sichuan Provincial People's Hospital , Chengdu , PR China
| | - Jing Feng
- c Department of Traditional Chinese Medicine , Sichuan Academy of Medical Science & Sichuan Provincial People's Hospital , Chengdu , PR China
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Sun J, Ren XS, Kang Y, Dai HB, Ding L, Tong N, Zhu GQ, Zhou YB. Intermedin in Paraventricular Nucleus Attenuates Sympathoexcitation and Decreases TLR4-Mediated Sympathetic Activation via Adrenomedullin Receptors in Rats with Obesity-Related Hypertension. Neurosci Bull 2019; 35:34-46. [PMID: 30276527 PMCID: PMC6357274 DOI: 10.1007/s12264-018-0292-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 06/14/2018] [Indexed: 01/11/2023] Open
Abstract
Intermedin/adrenomedullin-2 (IMD/AM2), a member of the calcitonin gene-related peptide/AM family, plays an important role in protecting the cardiovascular system. However, its role in the enhanced sympathoexcitation in obesity-related hypertension is unknown. In this study, we investigated the effects of IMD in the paraventricular nucleus (PVN) of the hypothalamus on sympathetic nerve activity (SNA), and lipopolysaccharide (LPS)-induced sympathetic activation in obesity-related hypertensive (OH) rats induced by a high-fat diet for 12 weeks. Acute experiments were performed under anesthesia. The dynamic alterations of sympathetic outflow were evaluated as changes in renal SNA and mean arterial pressure (MAP) in response to specific drugs. Male rats were fed a control diet (12% kcal as fat) or a high-fat diet (42% kcal as fat) for 12 weeks to induce OH. The results showed that IMD protein in the PVN was downregulated, but Toll-like receptor 4 (TLR4) and plasma norepinephrine (NE, indicating sympathetic hyperactivity) levels, and systolic blood pressure were increased in OH rats. LPS (0.5 µg/50 nL)-induced enhancement of renal SNA and MAP was greater in OH rats than in obese or control rats. Bilateral PVN microinjection of IMD (50 pmol) caused greater decreases in renal SNA and MAP in OH rats than in control rats, and inhibited LPS-induced sympathetic activation, and these were effectively prevented in OH rats by pretreatment with the AM receptor antagonist AM22-52. The mitogen-activated protein kinase/extracellular signal-regulated kinase (ERK) inhibitor U0126 in the PVN partially reversed the LPS-induced enhancement of SNA. However, IMD in the PVN decreased the LPS-induced ERK activation, which was also effectively prevented by AM22-52. Chronic IMD administration resulted in significant reductions in the plasma NE level and blood pressure in OH rats. Moreover, IMD lowered the TLR4 protein expression and ERK activation in the PVN, and decreased the LPS-induced sympathetic overactivity. These results indicate that IMD in the PVN attenuates SNA and hypertension, and decreases the ERK activation implicated in the LPS-induced enhancement of SNA in OH rats, and this is mediated by AM receptors.
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Affiliation(s)
- Jing Sun
- Key Laboratory of Cardiovascular Disease and Molecular Intervention, Department of Physiology, Nanjing Medical University, Nanjing, 211166, China
| | - Xing-Sheng Ren
- Key Laboratory of Cardiovascular Disease and Molecular Intervention, Department of Physiology, Nanjing Medical University, Nanjing, 211166, China
| | - Ying Kang
- Key Laboratory of Cardiovascular Disease and Molecular Intervention, Department of Physiology, Nanjing Medical University, Nanjing, 211166, China
| | - Hang-Bing Dai
- Key Laboratory of Cardiovascular Disease and Molecular Intervention, Department of Physiology, Nanjing Medical University, Nanjing, 211166, China
| | - Lei Ding
- Key Laboratory of Cardiovascular Disease and Molecular Intervention, Department of Physiology, Nanjing Medical University, Nanjing, 211166, China
- Department of Pathophysiology, Xuzhou Medical College, Xuzhou, 221004, China
| | - Ning Tong
- Department of Neurology, Heze Municipal Hospital, Heze, 274000, China
| | - Guo-Qing Zhu
- Key Laboratory of Cardiovascular Disease and Molecular Intervention, Department of Physiology, Nanjing Medical University, Nanjing, 211166, China
| | - Ye-Bo Zhou
- Key Laboratory of Cardiovascular Disease and Molecular Intervention, Department of Physiology, Nanjing Medical University, Nanjing, 211166, China.
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Xiao F, Wang D, Kong L, Li M, Feng Z, Shuai B, Wang L, Wei Y, Li H, Wu S, Tan C, Zhao H, Hu X, Liu J, Kang Y, Liao X, Zhou Y, Zhang W. Intermedin protects against sepsis by concurrently re-establishing the endothelial barrier and alleviating inflammatory responses. Nat Commun 2018; 9:2644. [PMID: 29980671 PMCID: PMC6035189 DOI: 10.1038/s41467-018-05062-2] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2017] [Accepted: 06/11/2018] [Indexed: 02/05/2023] Open
Abstract
Sepsis is a life-threatening condition caused by dysregulated host responses to infection. Widespread vascular hyperpermeability and a “cytokine storm” are two pathophysiological hallmarks of sepsis. Here, we show that intermedin (IMD), a member of the calcitonin family, alleviates organ injury and decreases mortality in septic mice by concurrently alleviating vascular leakage and inflammatory responses. IMD promotes the relocation of vascular endothelial cadherin through a Rab11-dependent pathway to dynamically repair the disrupted endothelial junction. Additionally, IMD decreases inflammatory responses by reducing macrophage infiltration via downregulating CCR2 expression. IMD peptide administration ameliorates organ injuries and significantly improves the survival of septic mice, and the experimental results correlate with the clinical data. Patients with high IMD levels exhibit a lower risk of shock, lower severity scores, and greatly improved survival outcomes than those with low IMD levels. Based on our data, IMD may be an important self-protective factor in response to sepsis. Sepsis is a life-threatening condition. Here, the authors show that intermedin alleviates organ injury and decreases mortality in septic mice by concurrently alleviating vascular leakage and inflammatory responses. Patients with high intermedin levels exhibit a low risk of shock, lower severity scores, and greatly improved survival outcomes.
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Affiliation(s)
- Fei Xiao
- Molecular Medicine Research Center, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China.,Department of Intensive Care Unit of Gynecology and Obstetrics, West China Second University Hospital, Sichuan University, Chengdu, 610041, China
| | - Denian Wang
- Molecular Medicine Research Center, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Lingmiao Kong
- Molecular Medicine Research Center, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Min Li
- Molecular Medicine Research Center, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Zhongxue Feng
- Molecular Medicine Research Center, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Bingxing Shuai
- Department of Intensive Care Unit, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Lijun Wang
- Molecular Medicine Research Center, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Yong'gang Wei
- Department of Liver Surgery, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Hongyu Li
- Department of Liver Surgery, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Sisi Wu
- Molecular Medicine Research Center, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Chun Tan
- Molecular Medicine Research Center, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Huan Zhao
- Molecular Medicine Research Center, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Xuejiao Hu
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Jin Liu
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Yan Kang
- Department of Intensive Care Unit, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Xuelian Liao
- Department of Intensive Care Unit, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Yan Zhou
- Department of Intensive Care Unit, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Wei Zhang
- Molecular Medicine Research Center, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China.
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Wu D, Shi L, Li P, Ni X, Zhang J, Zhu Q, Qi Y, Wang B. Intermedin 1-53 Protects Cardiac Fibroblasts by Inhibiting NLRP3 Inflammasome Activation During Sepsis. Inflammation 2018; 41:505-514. [PMID: 29192367 DOI: 10.1007/s10753-017-0706-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Sepsis is a disease that occurs as a result of systemic inflammatory response syndrome (SIRS) in response to an infection, contributing to multiple organ dysfunction and a high mortality rate. Interleukin-lβ (IL-1β) is a cytokine that plays critical roles in inflammation and cardiac dysfunction during severe sepsis. Intermedin1-53 (IMD1-53) has been recently discovered to possess potential endogenous anti-inflammatory and strong cardiovascular protective effects. To investigate whether IMD1-53 can inhibit the NLRP3/caspase-1/IL-1β pathway to alleviate cardiac injury and rescue heart function, sepsis was induced in vivo by caecal ligation and puncture (CLP) surgery, and lipopolysaccharides were used as septic stressors for cardiac fibroblasts (CFs) in vitro. The expressions of IMD1-53 receptors in sepsis rat heart were increased. After IMD1-53 treatment, inflammation caused by sepsis in vivo was greatly reduced, as shown by the downregulation of apoptosis-associated speck-like protein containing a caspase recruitment domain (ASC), nucleotide-binding domain and leucine-rich repeat containing family, pyrin containing 3 (NLRP3), pro-IL-1β, caspase 1, and nuclear translocation of nuclear factor-κB (NF-kB) protein levels. In addition, cardiac function was significantly improved and mean arterial blood pressure (MABP) increased by 34.8% (P < 0.05) which almost back to normal. Surprisingly, IMD1-53 inhibited cell apoptosis, as caspase 3 activity and Bax expression was significantly reduced in the heart upon IMD1-53 treatment. IMD1-53 abolished the upregulation of ASC, NLRP3, and caspase 1 protein levels in CFs induced by lipopolysaccharide (LPS). IMD1-53 increased cell survival rates and inhibited IL-1β production in the cell culture medium. IMD1-53 can protect against inflammation and heart injury during sepsis via attenuating the NLRP3/caspase-1/IL-1β pathway.
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Affiliation(s)
- Di Wu
- The Peking University Aerospace School of Clinical Medicine, Peking University Health Science Center, Beijing, 100191, China
| | - Lin Shi
- The Peking University People's Hospital, Beijing, 100191, China
| | - Pengyang Li
- Texas Heart Institute, Houston, TX, 77030, USA
| | - Xianqiang Ni
- Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Peking University Health Science Center, Beijing, 100191, China
| | - Jinsheng Zhang
- Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Peking University Health Science Center, Beijing, 100191, China
| | - Qing Zhu
- Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Peking University Health Science Center, Beijing, 100191, China
| | - Yongfen Qi
- Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Peking University Health Science Center, Beijing, 100191, China.
| | - Bin Wang
- The Peking University Aerospace School of Clinical Medicine, Peking University Health Science Center, Beijing, 100191, China.
- The First Affiliated Hospital of Shantou University Medical College, Guangdong, 515041, China.
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11
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Wang WJ, Cai GY, Chen XM. Cellular senescence, senescence-associated secretory phenotype, and chronic kidney disease. Oncotarget 2017; 8:64520-64533. [PMID: 28969091 PMCID: PMC5610023 DOI: 10.18632/oncotarget.17327] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Accepted: 03/24/2017] [Indexed: 12/19/2022] Open
Abstract
Chronic kidney disease (CKD) is increasingly being accepted as a type of renal ageing. The kidney undergoes age-related alterations in both structure and function. To date, a comprehensive analysis of cellular senescence and senescence-associated secretory phenotype (SASP) in CKD is lacking. Hence, this review mainly discusses the relationship between the two phenomena to show the striking similarities between SASP and CKD-associated secretory phenotype (CASP). It has been reported that replicative senescence, stress-induced premature ageing, and epigenetic abnormalities participate in the occurrence and development of CKD. Genomic damage and external environmental stimuli cause increased levels of oxidative stress and a chronic inflammatory state as a result of irreversible cell cycle arrest and low doses of SASP. Similar to SASP, CASP factors activate tissue repair by multiple mechanisms. Once tissue repair fails, the accumulated SASP or CASP species aggravate DNA damage response (DDR) and cause the senescent cells to secrete more SASP factors, accelerating the process of cellular ageing and eventually leading to various ageing-related changes. It is concluded that cellular senescence and SASP participate in the pathological process of CKD, and correspondingly CKD accelerated the progression of cell senescence and the secretion of SASP. These results will facilitate the integration of these mechanisms into the care and management of CKD and other age-related diseases.
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Affiliation(s)
- Wen-Juan Wang
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing 100853, China
- Department of Nephrology, Beijing Changping Hospital, Beijing 102200, China
| | - Guang-Yan Cai
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing 100853, China
| | - Xiang-Mei Chen
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing 100853, China
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12
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Krochmal M, Cisek K, Filip S, Markoska K, Orange C, Zoidakis J, Gakiopoulou C, Spasovski G, Mischak H, Delles C, Vlahou A, Jankowski J. Identification of novel molecular signatures of IgA nephropathy through an integrative -omics analysis. Sci Rep 2017; 7:9091. [PMID: 28831120 PMCID: PMC5567309 DOI: 10.1038/s41598-017-09393-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Accepted: 07/26/2017] [Indexed: 12/19/2022] Open
Abstract
IgA nephropathy (IgAN) is the most prevalent among primary glomerular diseases worldwide. Although our understanding of IgAN has advanced significantly, its underlying biology and potential drug targets are still unexplored. We investigated a combinatorial approach for the analysis of IgAN-relevant -omics data, aiming at identification of novel molecular signatures of the disease. Nine published urinary proteomics datasets were collected and the reported differentially expressed proteins in IgAN vs. healthy controls were integrated into known biological pathways. Proteins participating in these pathways were subjected to multi-step assessment, including investigation of IgAN transcriptomics datasets (Nephroseq database), their reported protein-protein interactions (STRING database), kidney tissue expression (Human Protein Atlas) and literature mining. Through this process, from an initial dataset of 232 proteins significantly associated with IgAN, 20 pathways were predicted, yielding 657 proteins for further analysis. Step-wise evaluation highlighted 20 proteins of possibly high relevance to IgAN and/or kidney disease. Experimental validation of 3 predicted relevant proteins, adenylyl cyclase-associated protein 1 (CAP1), SHC-transforming protein 1 (SHC1) and prolylcarboxypeptidase (PRCP) was performed by immunostaining of human kidney sections. Collectively, this study presents an integrative procedure for -omics data exploitation, giving rise to biologically relevant results.
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Affiliation(s)
- Magdalena Krochmal
- Biomedical Research Foundation Academy of Athens, Center of Basic Research, Athens, Greece
- RWTH Aachen University Hospital, Institute for Molecular Cardiovascular Research, Aachen, Germany
| | | | - Szymon Filip
- Biomedical Research Foundation Academy of Athens, Center of Basic Research, Athens, Greece
| | - Katerina Markoska
- Department of Nephrology, Medical Faculty, University of Skopje, Skopje, Macedonia
| | - Clare Orange
- Department of Pathology, School of Medicine, University of Glasgow, Glasgow, UK
| | - Jerome Zoidakis
- Biomedical Research Foundation Academy of Athens, Center of Basic Research, Athens, Greece
| | - Chara Gakiopoulou
- Pathology Department, National and Kapodistrian University of Athens, Athens, Greece
| | - Goce Spasovski
- Department of Nephrology, Medical Faculty, University of Skopje, Skopje, Macedonia
| | - Harald Mischak
- Mosaiques Diagnostics GmbH, Hannover, Germany
- University of Glasgow, Institute of Cardiovascular and Medical Sciences, Glasgow, UK
| | - Christian Delles
- Institute of Cardiovascular and Medical Sciences, BHF Glasgow Cardiovascular Research Centre, University of Glasgow, 126 University Place, Glasgow, G12 8TA, UK
| | - Antonia Vlahou
- Biomedical Research Foundation Academy of Athens, Center of Basic Research, Athens, Greece.
| | - Joachim Jankowski
- RWTH Aachen University Hospital, Institute for Molecular Cardiovascular Research, Aachen, Germany.
- University of Maastricht, CARIM School for Cardiovascular Diseases, Maastricht, Netherlands.
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13
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MiR-100-3p and miR-877-3p regulate overproduction of IL-8 and IL-1β in mesangial cells activated by secretory IgA from IgA nephropathy patients. Exp Cell Res 2016; 347:312-21. [DOI: 10.1016/j.yexcr.2016.08.011] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Revised: 08/05/2016] [Accepted: 08/15/2016] [Indexed: 01/27/2023]
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14
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Ji M, Lu Y, Zhao C, Gao W, He F, Zhang J, Zhao D, Qiu W, Wang Y. C5a Induces the Synthesis of IL-6 and TNF-α in Rat Glomerular Mesangial Cells through MAPK Signaling Pathways. PLoS One 2016; 11:e0161867. [PMID: 27583546 PMCID: PMC5008626 DOI: 10.1371/journal.pone.0161867] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Accepted: 08/13/2016] [Indexed: 12/16/2022] Open
Abstract
Inflammatory response has been reported to contribute to the renal lesions in rat Thy-1 nephritis (Thy-1N) as an animal model of human mesangioproliferative glomerulonephritis (MsPGN). Besides C5b-9 complex, C5a is also a potent pro-inflammatory mediator and correlated to severity of various nephritic diseases. However, the role of C5a in mediating pro-inflammatory cytokine production in rats with Thy-1N is poorly defined. In the present studies, the levels of C5a, interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α) were first determined in the renal tissues of rats with Thy-1N. Then, the expression of IL-6 and TNF-α was detected in rat glomerular mesangial cells (GMC) stimulated with our recombinant rat C5a in vitro. Subsequently, the activation of mitogen-activated protein kinase (MAPK) signaling pathways (p38 MAPK, ERK1/2 and JNK) and their roles in the regulation of IL-6 and TNF-α production were examined in the GMC induced by C5a. The results showed that the levels of C5a, IL-6 and TNF-α were markedly increased in the renal tissues of Thy-1N rats. Rat C5a stimulation in vitro could up-regulate the expression of IL-6 and TNF-α in rat GMC, and the activation of MAPK signaling pathways was involved in the induction of IL-6 and TNF-α. Mechanically, p38 MAPK activation promoted IL-6 production, while either ERK1/2 or JNK activation promoted TNF-α production in the GMC with exposure to C5a. Taken together, these data implicate that C5a induces the synthesis of IL-6 and TNF-α in rat GMC through the activation of MAPK signaling pathways.
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Affiliation(s)
- Mingde Ji
- Department of Immunology, Nanjing Medical University, Nanjing, Jiangsu, 211166, P.R. China
- Department of Laboratory Medicine, Affiliated Hospital of Nanjing University of Traditional Chinese Medicine, Nanjing, Jiangsu, 210029, P.R. China
| | - Yanlai Lu
- Department of Immunology, Nanjing Medical University, Nanjing, Jiangsu, 211166, P.R. China
| | - Chenhui Zhao
- Department of Medicine, First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, 210029, P.R. China
| | - Wenxing Gao
- Basic Medical Science of Basic Medical College, Nanjing Medical University, Nanjing, Jiangsu, 211166, P.R. China
| | - Fengxia He
- Department of Immunology, Nanjing Medical University, Nanjing, Jiangsu, 211166, P.R. China
| | - Jing Zhang
- Department of Immunology, Nanjing Medical University, Nanjing, Jiangsu, 211166, P.R. China
| | - Dan Zhao
- Department of Immunology, Nanjing Medical University, Nanjing, Jiangsu, 211166, P.R. China
| | - Wen Qiu
- Department of Immunology, Nanjing Medical University, Nanjing, Jiangsu, 211166, P.R. China
- * E-mail:
| | - Yingwei Wang
- Department of Immunology, Nanjing Medical University, Nanjing, Jiangsu, 211166, P.R. China
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15
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Zhang SY, Lv Y, Zhang H, Gao S, Wang T, Feng J, Wang Y, Liu G, Xu MJ, Wang X, Jiang C. Adrenomedullin 2 Improves Early Obesity-Induced Adipose Insulin Resistance by Inhibiting the Class II MHC in Adipocytes. Diabetes 2016; 65:2342-55. [PMID: 27207558 DOI: 10.2337/db15-1626] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Accepted: 04/26/2016] [Indexed: 11/13/2022]
Abstract
MHC class II (MHCII) antigen presentation in adipocytes was reported to trigger early adipose inflammation and insulin resistance. However, the benefits of MHCII inhibition in adipocytes remain largely unknown. Here, we showed that human plasma polypeptide adrenomedullin 2 (ADM2) levels were negatively correlated with HOMA of insulin resistance in obese human. Adipose-specific human ADM2 transgenic (aADM2-tg) mice were generated. The aADM2-tg mice displayed improvements in high-fat diet-induced early adipose insulin resistance. This was associated with increased insulin signaling and decreased systemic inflammation. ADM2 dose-dependently inhibited CIITA-induced MHCII expression by increasing Blimp1 expression in a CRLR/RAMP1-cAMP-dependent manner in cultured adipocytes. Furthermore, ADM2 treatment restored the high-fat diet-induced early insulin resistance in adipose tissue, mainly via inhibition of adipocyte MHCII antigen presentation and CD4(+) T-cell activation. This study demonstrates that ADM2 is a promising candidate for the treatment of early obesity-induced insulin resistance.
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Affiliation(s)
- Song-Yang Zhang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education and Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, China
| | - Ying Lv
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education and Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, China
| | - Heng Zhang
- Department of Endocrinology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Song Gao
- Department of General Surgery, Peking University First Hospital, Peking University, Beijing, China
| | - Ting Wang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education and Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, China
| | - Juan Feng
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education and Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, China
| | - Yuhui Wang
- Institute of Cardiovascular Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing, China
| | - George Liu
- Institute of Cardiovascular Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing, China
| | - Ming-Jiang Xu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education and Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, China
| | - Xian Wang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education and Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, China
| | - Changtao Jiang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education and Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, China
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