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Sabra RT, Bekhit AA, Sabra NT, Abd El-Moeze NA, Fathy M. Nebivolol ameliorates sepsis-evoked kidney dysfunction by targeting oxidative stress and TGF-β/Smad/p53 pathway. Sci Rep 2024; 14:14735. [PMID: 38926458 PMCID: PMC11208533 DOI: 10.1038/s41598-024-64577-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2024] [Accepted: 06/11/2024] [Indexed: 06/28/2024] Open
Abstract
Sepsis is a potential fetal organ destruction brought on through an overzealous immunologic reaction to infection, causing severe inflammation, septic shock, and damage to different organs. Although there has been progress in the identification and controlling of clinical sepsis, the fatality rates are still significant. This study, for the first time, intended to examine the possible ameliorative impact of Nebivolol, a β1-adrenergic antagonist antihypertensive drug, against nephrotoxicity resulted from cecal ligation and puncture (CLP)-induced sepsis in rats, on molecular basis. Sixty male Wistar albino rats were chosen. Oxidative stress indicators and biochemical markers of kidney activity were evaluated. Inflammatory mediators, fibrosis- and apoptosis-related proteins and gene expressions were investigated. Moreover, renal histopathological investigation was performed. CLP-induced nephrotoxicity characterized by markedly elevated serum levels of creatinine, blood urea nitrogen, uric acid, and renal malondialdhyde. On the other hand, it decreased serum total protein level, renal superoxide dismutase activity and reduced glutathione level. Additionally, it significantly elevated the renal inflammatory mediators (tumor necrosis factor-alpha, ilnerlukin (IL)-6, and IL-1β) and Caspase-3 protein, reduced IL-10 level, amplified the expression of transforming growth factor-beta 1 (TGF-β1), p-Smad2/3 and alpha-smooth-muscle actin proteins, downregulated the B cell lymphoma-2 (Bcl-2) gene and elevated the transcription of Bcl-2-associated X-protein (Bax), p53 and Nuclear factor-kappa B (NF-κB) genes. Furtheremor, kidney tissues exhibited significant histopathological changes with CLP. On the contrary, Nebivolol significantly improved all these biochemical changes and enhanced the histopathological alterations obtained by CLP. This research showed, for the first time, that Nebivolol effectively mitigated the CLP-induced kidney dysfunction via its antioxidant, antifibrotic and anti-apoptotic activity through modulation of oxidative stress, TGF-β/NF-κB and TGF-β/Smad/p53 signaling pathways.
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Affiliation(s)
- Rahma Tharwat Sabra
- Department of Biochemistry, Faculty of Pharmacy, Minia University, Minia, 61519, Egypt
| | | | - Nourhan Tharwat Sabra
- Department of Anatomy and Embryology, Faculty of Medicine, Beni-Suef University, Beni-Suef, 62514, Egypt
| | | | - Moustafa Fathy
- Department of Biochemistry, Faculty of Pharmacy, Minia University, Minia, 61519, Egypt.
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Zhong J, Doughty R, Thymann T, Sangild PT, Nguyen DN, Muk T. Insulin-like growth factor-1 effects on kidney development in preterm piglets. Pediatr Res 2024:10.1038/s41390-024-03222-3. [PMID: 38762663 DOI: 10.1038/s41390-024-03222-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 04/03/2024] [Accepted: 04/04/2024] [Indexed: 05/20/2024]
Abstract
BACKGROUND Preterm birth disrupts fetal kidney development, potentially leading to postnatal acute kidney injury. Preterm infants are deficient in insulin-like growth factor 1 (IGF-1), a growth factor that stimulates organ development. By utilizing a preterm pig model, this study investigated whether IGF-1 supplementation enhances preterm kidney maturation. METHODS Cesarean-delivered preterm pigs were treated systemically IGF-1 or vehicle control for 5, 9 or 19 days after birth. Blood, urine, and kidney tissue were collected for biochemical, histological and gene expression analyses. Age-matched term-born pigs were sacrificed at similar postnatal ages and served as the reference group. RESULTS Compared with term pigs, preterm pigs exhibited impaired kidney maturation, as indicated by analyses of renal morphology, histopathology, and inflammatory and injury markers. Supplementation with IGF-1 reduced signs of kidney immaturity, particularly in the first week of life, as indicated by improved morphology, upregulated expression of key developmental genes, reduced severity and incidence of microscopic lesions, and decreased levels of inflammatory and injury markers. No association was seen between the symptoms of necrotizing enterocolitis and kidney defects. CONCLUSION Preterm birth in pigs impairs kidney maturation and exogenous IGF-1 treatment partially reverses this impairment. Early IGF-1 supplementation could support the development of preterm kidneys. IMPACT Preterm birth may disrupt kidney development in newborns, potentially leading to morphological changes, injury, and inflammation. Preterm pigs have previously been used as models for preterm infants, but not for kidney development. IGF-1 supplementation promotes kidney maturation and alleviates renal impairments in the first week of life in preterm pigs. IGF-1 may hold potential as a supportive therapy for preterm infants sensitive to acute kidney injury.
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Affiliation(s)
- Jingren Zhong
- Section for Comparative Paediatrics and Nutrition, Department of Veterinary and Animal Sciences, University of Copenhagen, Frederiksberg, Denmark
| | - Richard Doughty
- Department of Pathology, Akershus University Hospital, Lørenskog, Norway
| | - Thomas Thymann
- Section for Comparative Paediatrics and Nutrition, Department of Veterinary and Animal Sciences, University of Copenhagen, Frederiksberg, Denmark
| | - Per Torp Sangild
- Section for Comparative Paediatrics and Nutrition, Department of Veterinary and Animal Sciences, University of Copenhagen, Frederiksberg, Denmark
- Department of Pediatrics, Odense University Hospital, Odense, Denmark
- Department of Neonatology, Rigshospitalet, Copenhagen, Denmark
| | - Duc Ninh Nguyen
- Section for Comparative Paediatrics and Nutrition, Department of Veterinary and Animal Sciences, University of Copenhagen, Frederiksberg, Denmark
| | - Tik Muk
- Section for Comparative Paediatrics and Nutrition, Department of Veterinary and Animal Sciences, University of Copenhagen, Frederiksberg, Denmark.
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Abdelnaser M, Alaaeldin R, Attya ME, Fathy M. Modulating Nrf-2/HO-1, apoptosis and oxidative stress signaling pathways by gabapentin ameliorates sepsis-induced acute kidney injury. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2024; 397:947-958. [PMID: 37548662 PMCID: PMC10791735 DOI: 10.1007/s00210-023-02650-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 07/28/2023] [Indexed: 08/08/2023]
Abstract
PURPOSE Globally, sepsis, which is a major health issue resulting from severe infection-induced inflammation, is the fifth biggest cause of death. This research aimed to evaluate, for the first time, the molecular effects of gabapentin's possible nephroprotective potential on septic rats by cecal ligation and puncture (CLP). METHODS Sepsis was produced by CLP in male Wistar rats. Evaluations of histopathology and renal function were conducted. MDA, SOD, GSH, TNF-α, IL-1β, and IL-6 levels were measured. qRT-PCR was utilized to determine the expression of Bax, Bcl-2, and NF-kB genes. The expression of Nrf-2 and HO-1 proteins was examined by western blotting. RESULTS CLP caused acute renal damage, elevated the blood levels of creatinine, BUN, TNF-α, IL-1β, and IL-6, reduced the expression of Nrf-2 and HO-1 proteins and the Bcl-2 gene expression, and upregulated NF-kB and Bax genes. Nevertheless, gabapentin dramatically diminished the degree of the biochemical, molecular, and histopathological alterations generated by CLP. Gabapentin reduced the levels of proinflammatory mediators and MDA, improved renal content of GSH and SOD, raised the expression of Nrf-2 and HO-1 proteins and Bcl-2 gene, and reduced the renal expression of NF-kB and Bax genes. CONCLUSION Gabapentin mitigated the CLP-induced sepsis-related acute kidney injury through up-regulating Nrf-2/HO-1 pathway, repressing apoptosis, and attenuating the oxidative stress status by reducing the levels of the proinflammatory mediators and enhancing the antioxidant status.
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Affiliation(s)
- Mahmoud Abdelnaser
- Department of Biochemistry, Faculty of Pharmacy, Deraya University, Minia, 61111, Egypt
| | - Rania Alaaeldin
- Department of Biochemistry, Faculty of Pharmacy, Deraya University, Minia, 61111, Egypt
| | - Mina Ezzat Attya
- Department of Pathology, Faculty of Medicine, Minia University, Minia, 61519, Egypt
| | - Moustafa Fathy
- Department of Biochemistry, Faculty of Pharmacy, Minia University, Minia, 61519, Egypt.
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Li J, Wang L, Wang B, Zhang Z, Jiang L, Qin Z, Zhao Y, Su B. NOX4 is a potential therapeutic target in septic acute kidney injury by inhibiting mitochondrial dysfunction and inflammation. Theranostics 2023; 13:2863-2878. [PMID: 37284448 PMCID: PMC10240817 DOI: 10.7150/thno.81240] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Accepted: 04/25/2023] [Indexed: 06/08/2023] Open
Abstract
Rationale: Sepsis is a severe clinical syndrome featured through organ dysfunction due to infection, while the accompanying acute kidney injury (AKI) is linked to significant incidence of morbidity as well as mortality. Recently, emerging evidence has revealed that nicotinamide adenine dinucleotide phosphate (NADPH) oxidase 4 (NOX4) is implicated in various renal diseases, while its role and modulation in septic acute kidney injury (S-AKI) remains largely unknown. Methods: In vivo, S-AKI in wild-type and renal tubular epithelial cell (RTEC)-specific NOX4 knockout mice was induced by lipopolysaccharides (LPS) injection or cecal ligation and puncture (CLP). In vitro, TCMK-1 (mouse kidney tubular epithelium cell line) cells were treated with LPS. Serum and supernatant biochemical, mitochondrial dysfunctional, inflammatory and apoptotic parameters were measured and compared across groups. The activation of reactive oxygen species (ROS) and NF-κB signaling was also assessed. Results: NOX4 was predominantly upregulated in RTECs of S-AKI mouse model induced by LPS/CLP and cultured TCMK-1 cells exposed to LPS. RTEC-specific deletion of NOX4 or pharmacological inhibition of NOX4 by GKT137831 both alleviated LPS/CLP-injured renal function and pathology in mice. Furthermore, NOX4 inhibition alleviated mitochondrial dysfunction supported by ultrastructural damage, reduction of ATP production and mitochondrial dynamics imbalance, together with inflammation and apoptosis in kidney injured by LPS/CLP and TCMK-1 cells injured by LPS, while NOX4 overexpression aggravated the above-mentioned indices in TCMK-1 cells with LPS stimulation. Mechanism-wise, the raised NOX4 in RTECs may induce ROS and NF-κB signaling activation in S-AKI. Conclusions: Collectively, genetic or pharmacological inhibition of NOX4 protects from S-AKI by reducing generation of ROS and activation of NF-κB signal, which suppress mitochondrial dysfunction, inflammation together with apoptosis. NOX4 may act as a novel target for the S-AKI therapy.
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Affiliation(s)
- Jiameng Li
- Center of Gerontology and Geriatrics, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Liya Wang
- Department of Nephrology, Kidney Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Bo Wang
- Department of Nephrology, Kidney Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Zhuyun Zhang
- Department of Nephrology, Kidney Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Luojia Jiang
- Department of Nephrology, Jiujiang No. 1 People's Hospital, Jiujiang 332000, China
| | - Zheng Qin
- Department of Nephrology, Kidney Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yuliang Zhao
- Department of Nephrology, Kidney Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Baihai Su
- Department of Nephrology, Kidney Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
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Kazmi I, Al-Abbasi FA, Afzal M, Nadeem MS, Altayb HN, Gupta G. Phosphodiesterase-4 Inhibitor Roflumilast-Mediated Protective Effect in Sepsis-Induced Late-Phase Event of Acute Kidney Injury: A Narrative Review. Pharmaceuticals (Basel) 2022; 15:ph15070899. [PMID: 35890197 PMCID: PMC9315747 DOI: 10.3390/ph15070899] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 07/08/2022] [Accepted: 07/08/2022] [Indexed: 11/16/2022] Open
Abstract
Severe infections such as viral, bacterial, or fungal sepsis can cause an inflammatory response in the host, leading to organ failure and septic shock—phosphodiesterase-4 (PDE-4) inhibiting related agents from suppressing cyclic adenosine monophosphate (cAMP) degradation. Regulatory organisations have approved some substances in this category to reduce the risk of chronic obstructive pulmonary disease (COPD) exacerbations in patients with chronic bronchitis and a history of COPD exacerbations. Roflumilast has been shown to alleviate inflammatory responses, thus regulating airway inflammation. Additionally, roflumilast therapy dramatically enhanced B-cell lymphoma 2 (Bcl-2) expression, an anti-apoptotic marker lowered in septic animals. Previous research has indicated that roflumilast may help reverse sepsis-induced liver and lung harm, but whether it is also effective in reversing sepsis-induced renal impairment remains unknown. Therefore, this review determines whether roflumilast protects against renal dysfunction, inflammatory response, and apoptosis in sepsis-induced kidney damage. Additionally, we discussed the molecular mechanism through which roflumilast exerts its protective effect to uncover a possible treatment agent for sepsis-induced renal impairment.
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Affiliation(s)
- Imran Kazmi
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (F.A.A.-A.); (M.S.N.); (H.N.A.)
- Correspondence:
| | - Fahad A. Al-Abbasi
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (F.A.A.-A.); (M.S.N.); (H.N.A.)
| | - Muhammad Afzal
- Department of Pharmacology, College of Pharmacy, Jouf University, Sakakah 72341, Saudi Arabia;
| | - Muhammad Shahid Nadeem
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (F.A.A.-A.); (M.S.N.); (H.N.A.)
| | - Hisham N. Altayb
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (F.A.A.-A.); (M.S.N.); (H.N.A.)
| | - Gaurav Gupta
- School of Pharmacy, Suresh Gyan Vihar University, Mahal Road, Jagatpura 302017, Jaipur, India;
- Department of Pharmacology, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai 602105, Tamil Nadu, India
- Uttaranchal Institute of Pharmaceutical Sciences, Uttaranchal University, Dehradun 248007, Uttarakhand, India
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Wang B, Xu J, Ren Q, Cheng L, Guo F, Liang Y, Yang L, Tan Z, Fu P, Ma L. Fatty acid-binding protein 4 is a therapeutic target for septic acute kidney injury by regulating inflammatory response and cell apoptosis. Cell Death Dis 2022; 13:333. [PMID: 35410456 PMCID: PMC9001746 DOI: 10.1038/s41419-022-04794-w] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Revised: 03/14/2022] [Accepted: 03/22/2022] [Indexed: 12/16/2022]
Abstract
Sepsis is a systemic inflammatory state in response to infection, and concomitant acute kidney injury (AKI) significantly increases morbidity and mortality. Growing evidence suggests that fatty acid-binding protein 4 (FABP4) is critically involved in kidney diseases, while its role in septic AKI remains unknown. Here, FABP4 was mainly upregulated in renal tubular epithelial cells (RTECs) following cecal ligation and puncture (CLP)- or lipopolysaccharide (LPS)-induced septic AKI. FABP4 inhibition by genetic deletion or BMS309403 treatment both attenuated kidney dysfunction and pathological injury in CLP- or LPS-treated mice. Notably, RTEC-specific deletion of FABP4 also showed similar renoprotective effects. Moreover, FABP4 inhibition alleviated inflammation and apoptosis in CLP-injured kidneys and LPS-stimulated mouse tubular epithelial cells. Mechanistically, TLR4 blockage improved sepsis-induced kidney injury, as well as suppressed c-Jun phosphorylation and FABP4 expression, where c-Jun knockdown also inhibited LPS-stimulated FABP4 level. Meanwhile, FABP4 inhibition reduced the elevated phosphorylated c-Jun, while the levels of TLR4 and MyD88 were uninfluenced. Collectively, the increased FABP4 in RTECs is dependent on TLR4/c-Jun signaling activation and contributes to kidney injury, by forming a positive feedback loop with c-Jun to aggravate inflammation and apoptosis in septic AKI. Thus, FABP4 may be a therapeutic target for septic AKI.
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Affiliation(s)
- Bo Wang
- Kidney Research Institute, Division of Nephrology, West China Hospital of Sichuan University, 610041, Chengdu, China
| | - Jun Xu
- Kidney Research Institute, Division of Nephrology, West China Hospital of Sichuan University, 610041, Chengdu, China
| | - Qian Ren
- Kidney Research Institute, Division of Nephrology, West China Hospital of Sichuan University, 610041, Chengdu, China
| | - Lu Cheng
- Kidney Research Institute, Division of Nephrology, West China Hospital of Sichuan University, 610041, Chengdu, China
| | - Fan Guo
- Kidney Research Institute, Division of Nephrology, West China Hospital of Sichuan University, 610041, Chengdu, China
| | - Yan Liang
- Research Core Facility of West China Hospital, Sichuan University, 610041, Chengdu, China
| | - Letian Yang
- Kidney Research Institute, Division of Nephrology, West China Hospital of Sichuan University, 610041, Chengdu, China
| | - Zhouke Tan
- Division of Nephrology, ZunYi Medical University Affiliated Hospital, 563003, ZunYi, China
| | - Ping Fu
- Kidney Research Institute, Division of Nephrology, West China Hospital of Sichuan University, 610041, Chengdu, China.
| | - Liang Ma
- Kidney Research Institute, Division of Nephrology, West China Hospital of Sichuan University, 610041, Chengdu, China.
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LaFavers K. Disruption of Kidney-Immune System Crosstalk in Sepsis with Acute Kidney Injury: Lessons Learned from Animal Models and Their Application to Human Health. Int J Mol Sci 2022; 23:1702. [PMID: 35163625 PMCID: PMC8835938 DOI: 10.3390/ijms23031702] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 01/21/2022] [Accepted: 01/28/2022] [Indexed: 02/07/2023] Open
Abstract
In addition to being a leading cause of morbidity and mortality worldwide, sepsis is also the most common cause of acute kidney injury (AKI). When sepsis leads to the development of AKI, mortality increases dramatically. Since the cardinal feature of sepsis is a dysregulated host response to infection, a disruption of kidney-immune crosstalk is likely to be contributing to worsening prognosis in sepsis with acute kidney injury. Since immune-mediated injury to the kidney could disrupt its protein manufacturing capacity, an investigation of molecules mediating this crosstalk not only helps us understand the sepsis immune response, but also suggests that their supplementation could have a therapeutic effect. Erythropoietin, vitamin D and uromodulin are known to mediate kidney-immune crosstalk and their disrupted production could impact morbidity and mortality in sepsis with acute kidney injury.
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Affiliation(s)
- Kaice LaFavers
- Division of Nephrology and Hypertension, Department of Medicine, Indiana University School of Medicine, Evansville, IN 47708, USA
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Ding Y, Zhou DY, Yu H, Zhu T, Guo F, He Y, Guo XL, Lin YJ, Liu YJ, Yu YS. Upregulation of lncRNA NONRATG019935.2 suppresses the p53-mediated apoptosis of renal tubular epithelial cells in septic acute kidney injury. Cell Death Dis 2021; 12:771. [PMID: 34719669 PMCID: PMC8558325 DOI: 10.1038/s41419-021-03953-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 05/05/2021] [Accepted: 05/06/2021] [Indexed: 12/11/2022]
Abstract
Although increasing evidence has confirmed that the apoptosis of renal tubular epithelial cells (RTECs) is a crucial contributor to the onset and development of septic acute kidney injury (AKI), the pathological mechanism by which RTEC apoptosis is upregulated during septic AKI is not entirely clear. In this study, a rat model of septic AKI was induced by a cecal ligation puncture procedure or lipopolysaccharide (LPS) injection. Four differentially expressed long noncoding RNAs (DE-Lncs) in the rat model of septic AKI were determined using RNA-sequencing and verified by qRT-PCR. Among the four DE-Lncs, the expression level of lncRNA NONRATG019935.2 (9935) exhibited the most significant reduction in both septic AKI rats and LPS-treated NRK-52E cells (a rat RTEC line). The overexpression of 9935 suppressed cell apoptosis and p53 protein level in LPS-treated NRK-52E cells, and retarded septic AKI development in the rat model of septic AKI. Mechanistically, 9935 decreased the human antigen R (HuR)-mediated Tp53 mRNA stability by limiting the combination of HuR and the 3'UTR region of Tp53 mRNA in RTECs. The overexpression of HuR abrogated the inhibitory effect of pcDNA-9935 on the LPS-induced apoptosis of NRK-52E and rat primary RTECs. In conclusion, 9935 exerts its role in septic AKI by suppressing the p53-mediated apoptosis of RTECs, and this essential role of 9935 relies on its destructive effect on HuR-mediated Tp53 mRNA stability.
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Affiliation(s)
- Ying Ding
- Department of Intensive Care Unit, Sir Run Run Shaw Hospital Xiasha Campus, Zhejiang University School of Medicine, 310018, Hangzhou, Zhejiang, China.
| | - Dao-Yang Zhou
- Department of Emergency, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 310016, Hangzhou, Zhejiang, China
| | - Hong Yu
- Department of General Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 310016, Hangzhou, Zhejiang, China
| | - Tao Zhu
- Department of Intensive Care Unit, Sir Run Run Shaw Hospital Xiasha Campus, Zhejiang University School of Medicine, 310018, Hangzhou, Zhejiang, China
| | - Feng Guo
- Department of Intensive Care Unit, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 310016, Hangzhou, Zhejiang, China
| | - Yang He
- Department of Emergency, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 310016, Hangzhou, Zhejiang, China
| | - Xiu-Liu Guo
- Department of Intensive Care Unit, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 310016, Hangzhou, Zhejiang, China
| | - Yong-Jun Lin
- Department of Intensive Care Unit, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 310016, Hangzhou, Zhejiang, China
| | - Yu-Jiao Liu
- Department of Intensive Care Unit, Sir Run Run Shaw Hospital Xiasha Campus, Zhejiang University School of Medicine, 310018, Hangzhou, Zhejiang, China
| | - Yun-Song Yu
- Department of Infectious Diseases, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 310016, Hangzhou, Zhejiang, China
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Che L, Yu C, Chen G, Lin J, Xie Z, Xia T, Luo W, Cai X, Liu S. The Inflammatory Response Induced by RELMβ Upregulates IL-8 and IL-1β Expression in Bronchial Epithelial Cells in COPD. Int J Chron Obstruct Pulmon Dis 2021; 16:2503-2513. [PMID: 34511895 PMCID: PMC8421257 DOI: 10.2147/copd.s321877] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Accepted: 08/23/2021] [Indexed: 01/04/2023] Open
Abstract
Purpose Chronic obstructive pulmonary disease (COPD) is associated with a complex inflammatory regulatory network. Resistin-like molecule β (RELMβ) is highly expressed in the lungs of COPD patients. We aimed to investigate the proinflammatory effect of RELMβ on airway epithelial cells in COPD. Methods First, a GEO dataset was used to analyze the expression of the RELMβ gene in the COPD and control groups as well as the protein levels of RELMβ in the sera of outpatients with COPD and normal control subjects in our hospital. We also stimulated 16HBE bronchial epithelial cells with recombinant RELMβ protein and analyzed the expression of IL-8 and IL-1β. We upregulated and downregulated the gene expression of RELMβ in 16HBE cells and analyzed the expression of the inflammatory cytokines IL-8 and IL-1β. In addition, we also examined the mechanism by which the p38 MAPK signaling pathway contributed to the regulation of IL-8 and IL-1β expression by RELMβ. Results RELMβ expression was increased in COPD tissues in different data sets and in the serum of COPD patients in our hospital. IL-8 and IL-1β expression was also increased in COPD tissues with high RELMβ gene expression in different data sets. The RELMβ gene was mainly related to inflammatory factors and inflammatory signaling pathways in the PPI regulatory network. Experiments at the cellular level showed that RELMβ promoted the expression of the inflammatory cytokines IL-8 and IL-1β, and this regulation was mediated by the p38 MAPK signaling pathway. Conclusion RELMβ can promote the expression of the inflammatory cytokines IL-8 and IL-1β in bronchial epithelial cells of patients with COPD and exert inflammatory effects. RELMβ may be a potential target for the treatment of COPD.
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Affiliation(s)
- Li Che
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Jinan University, Guangzhou, 510630, People's Republic of China
| | - Chao Yu
- Department of Pulmonary and Critical Care Medicine, Lu'an People's Hospital of Anhui Province, Lu'an, 237016, People's Republic of China
| | - Guangshu Chen
- Department of Endocrinology, Guangzhou Red Cross Hospital, The Affiliated Hospital of Jinan University, Guangzhou, 510220, People's Republic of China
| | - Jiaxin Lin
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Jinan University, Guangzhou, 510630, People's Republic of China
| | - Zhefan Xie
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Jinan University, Guangzhou, 510630, People's Republic of China
| | - Tingting Xia
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Jinan University, Guangzhou, 510630, People's Republic of China
| | - Wenzhi Luo
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Jinan University, Guangzhou, 510630, People's Republic of China
| | - Xingdong Cai
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Jinan University, Guangzhou, 510630, People's Republic of China
| | - Shengming Liu
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Jinan University, Guangzhou, 510630, People's Republic of China
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Yang J, Xie X. Tofacitinib protects intestinal epithelial cells against oxygen-glucose deprivation/reoxygenation injury by inhibiting the JAK/STAT3 signaling pathway. Exp Ther Med 2021; 22:1108. [PMID: 34504562 PMCID: PMC8383770 DOI: 10.3892/etm.2021.10542] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 06/30/2021] [Indexed: 12/14/2022] Open
Abstract
The present study aimed to investigate the role and potential mechanism of action of tofacitinib (Tofa) in intestinal ischemia/reperfusion (I/R) injury. The normal rat small intestine epithelial cell line, IEC-6, was used to establish an I/R injury model by inducing oxygen-glucose deprivation/reoxygenation (OGD/R). Cells were divided into the following five groups: Control, OGD/R, OGD/R with 50, 100 and 200 nM Tofa. Following Tofa administration, cell viability was measured using Cell Counting Kit-8 assay and a lactate dehydrogenase detection kit. The expression levels of cell apoptosis-related proteins, Bcl-2, cleaved-caspase-3 and cleaved-caspase-9 were detected using western blot analysis. Additionally, the levels of oxidative stress-related markers, such as reactive oxygen species (ROS), malondialdehyde (MDA) and superoxide dismutase (SOD), and inflammatory cytokines, TNF-α, IL-6 and IL-1β were assessed using the colorimetric method. Western blot analysis was also used to measure the expression levels of the Janus kinase (JAK)/STAT3 signaling pathway-related proteins, including phosphorylated (p)-JAK1, p-JAK3 and p-STAT3. Subsequently, colivelin, an agonist of the JAK/STAT3 pathway, was used to investigate whether the effects of Tofa on intestinal I/R injury were mediated by this signaling pathway. The results showed that Tofa dose-dependently elevated cell viability compared with that in the OGD/R group. By contrast, Tofa attenuated cell apoptosis, which was coupled with upregulated Bcl-2 expression, downregulated cleaved-caspase-3 and downregulated cleaved-caspase-9 levels, in OGD/R-induced IEC-6 cells. Furthermore, the contents of ROS and MDA were significantly increased following exposure to OGD/R, which were accompanied by the decreased activity of SOD. These effects were reversed following cell treatment with Tofa. Consistently, Tofa intervention reduced the secretion levels of TNF-α, IL-6 and IL-1β in a dose-dependent manner. Additionally, Tofa markedly downregulated the phosphorylation levels of JAK1, JAK3 and STAT3 in OGD/R-induced IEC-6 cells. However, treatment with colivelin markedly reversed the inhibitory effects of Tofa on cell viability, cell apoptosis, oxidative stress and inflammation. Overall, the findings of the present study suggested that Tofa could protect against intestinal I/R injury by inhibiting the JAK/STAT3 signaling pathway, which may hold promise as a therapeutic agent for intestinal I/R injury.
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Affiliation(s)
- Jing Yang
- Department of Pediatric Gastroenterology, Chengdu Women's and Children's Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan 610091, P.R. China
| | - Xiaoli Xie
- Department of Pediatric Gastroenterology, Chengdu Women's and Children's Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan 610091, P.R. China
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Kostakoglu U, Mercantepe T, Yilmaz HK, Tumkaya L, Batcik S, Pinarbas E, Uydu HA. The Protective Effects of Perindopril Against Acute Kidney Damage Caused by Septic Shock. Inflammation 2020; 44:148-159. [PMID: 32803666 DOI: 10.1007/s10753-020-01316-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Acute kidney injury (AKI) resulting from septic shock caused by sepsis is an important health problem encountered at rates of 55-73%. Increasing oxidative stress and inflammation following sepsis is a widely observed condition with rising mortality rates. The purpose of this study was to determine whether perindopril (PER) can prevent sepsis-associated AKI with its antioxidant, anti-inflammatory, and anti-apoptotic effects. The control group received an oral saline solution only for 4 days. Cecal ligation and puncture (CLP)-induced sepsis only was applied to the CLP group, while the CLP + PER (2 mg/kg) received CLP-induced sepsis together with 2 mg/kg PER via the oral route for 4 days before induction of sepsis. Finally, all rats were euthanized by anesthesia and sacrificed. TBARS, total SH levels and NF-κβ, TNF-α, and Caspase-3 expression were then calculated for statistical analysis. TBARS, total SH, NF-kβ/p65, TNF-a, and Caspase-3 levels increased in the CLP group. In contrast, oral administration of PER (2 mg/kg) to septic rats reduced TBARS levels and NF-kβ/p65, TNF-α, and Caspase-3 immunopositivity at biochemical analysis. PER treatment appears to be a promising method for preventing sepsis-induced acute kidney injury through its antioxidant anti-inflammation and anti-apoptotic activities.
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Affiliation(s)
- Ugur Kostakoglu
- Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, Recep Tayyip Erdogan University, 53100, Rize, Turkey.
| | - Tolga Mercantepe
- Department of Histology and Embryology, Faculty of Medicine, Recep Tayyip Erdogan University, 53100, Rize, Turkey
| | - Hulya Kilic Yilmaz
- Department of Medical Biochemistry, Faculty of Medicine, Recep Tayyip Erdogan University, 53100, Rize, Turkey
| | - Levent Tumkaya
- Department of Histology and Embryology, Faculty of Medicine, Recep Tayyip Erdogan University, 53100, Rize, Turkey
| | - Sule Batcik
- Department of Anaesthesiology and Reanimation, Faculty of Medicine, Recep Tayyip Erdogan University, 53100, Rize, Turkey
| | - Esra Pinarbas
- Department of Medical Biochemistry, Faculty of Medicine, Recep Tayyip Erdogan University, 53100, Rize, Turkey
| | - Huseyin Avni Uydu
- Department of Medical Biochemistry, Faculty of Medicine, Recep Tayyip Erdogan University, 53100, Rize, Turkey
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Liu X, Zhu N, Zhang B, Xu SB. Long Noncoding RNA TCONS_00016406 Attenuates Lipopolysaccharide-Induced Acute Kidney Injury by Regulating the miR-687/PTEN Pathway. Front Physiol 2020; 11:622. [PMID: 32655407 PMCID: PMC7325890 DOI: 10.3389/fphys.2020.00622] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Accepted: 05/18/2020] [Indexed: 01/03/2023] Open
Abstract
Acute kidney injury (AKI) is a common and serious complication of sepsis accompanied by kidney dysfunction resulting from various etiologies and pathophysiological processes. Unfortunately, there is currently no ideal therapeutic strategy for AKI. Numerous studies have confirmed that long noncoding RNAs (lncRNAs) play important regulatory roles in the pathogenesis of sepsis-associated AKI. In this study, lncRNA TCONS_00016406 (termed lncRNA 6406), a novel lncRNA identified by using TargetScan, was significantly downregulated in the kidney tissues of mice with sepsis-associated AKI. This study aimed to explore the role of lncRNA 6406 in lipopolysaccharide (LPS)-induced AKI and its potential molecular mechanism. The models of sepsis-induced AKI (called LPS-induced AKI models) in mice and cell lines were established with male C57BL/6 mice and renal tubular epithelial (PTEC) cells, respectively. Twenty-four hours after LPS administration, kidneys and cell samples were collected after various treatments to examine the alterations in the lncRNA 6406 levels and to evaluate the effects on LPS-induced inflammation, oxidative stress, and apoptosis through real-time PCR (RT-PCR) analysis, western blotting, and terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL) staining. The results revealed that lncRNA 6406 could significantly attenuate LPS-induced AKI, as shown by the alleviation of inflammation, the suppression of oxidative stress and the inhibition of apoptosis. Mechanistically, a luciferase reporter assay and additional research showed that lncRNA 6406 functioned as a ceRNA to sponge miRNA-687, thereby modulating LPS-stimulated AKI by targeting the miR-687/PTEN axis; thus, this study presents a novel therapeutic strategy or sepsis-associated AKI.
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Affiliation(s)
- Xuelan Liu
- Department of Emergency, Ningbo Medical Center Li Huili Hospital, Ningbo, China
| | - Na Zhu
- Department of Emergency, Ningbo Medical Center Li Huili Hospital, Ningbo, China
| | - Bo Zhang
- Department of Emergency, Ningbo Medical Center Li Huili Hospital, Ningbo, China
| | - Shao Bo Xu
- Department of Emergency, Ningbo Medical Center Li Huili Hospital, Ningbo, China
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Xu X, Liao L, Hu B, Jiang H, Tan M. Roflumilast, a Phosphodiesterases-4 (PDE4) Inhibitor, Alleviates Sepsis‑induced Acute Kidney Injury. Med Sci Monit 2020; 26:e921319. [PMID: 32449901 PMCID: PMC7268890 DOI: 10.12659/msm.921319] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Sepsis causes acute kidney injury (AKI) in critically ill patients. Roflumilast, a phosphodiesterases-4 (PDE4) inhibitor, has been shown to be therapeutically effective in sepsis-induced organ injury. However, the function of roflumilast in sepsis-induced AKI is not clearly understood. The present study aimed to explore the protective effect of roflumilast on sepsis-induced AKI in mice. MATERIAL AND METHODS A sepsis model was established by cecal ligation and puncture surgery. Roflumilast (1 mg/kg and 3 mg/kg) was used once daily for 7 consecutive days for treatment. Kidney tissues were pathologically examined by hematoxylin and eosin (H&E) and periodic acid-Schiff (PAS) staining. The levels of kidney injury markers including blood urea nitrogen (BUN), creatinine (Cre), kidney injury molecule-1 (KIM-1), and neutrophil gelatinase-associated lipocalin (NGAL), and inflammatory cytokines including interleukin (IL)-6, tumor necrosis factor (TNF)-alpha, and IL-1ß were detected by their corresponding test kits. The protein expression was measured using western blot and cell apoptosis of kidney tissue was determined by TUNEL (terminal deoxynucleotidyl transferase dUTP nick end labeling) assay. RESULTS Roflumilast was demonstrated to alleviate sepsis-induced AKI by reducing histopathological changes and decreasing the levels of kidney injury markers in a concentration-dependent way. The production of TNF-alpha, IL-6, and IL-1ß was significantly suppressed by roflumilast. Besides, roflumilast inhibited the activation of NLRP3 (nucleotide-binding domain (NOD)-like receptor protein 3) and NF-kappaB (nuclear factor kappa-light-chain-enhancer of activated B cells). Additionally, roflumilast inhibited cell apoptosis and changes in expression of apoptosis related proteins induced by sepsis. Finally, high concentration of roflumilast (3 mg/kg) did not have an adverse effect on liver, heart, lung, or spleen. CONCLUSIONS Our study indicated that roflumilast could ameliorate AKI induced by sepsis through restraining inflammatory response and apoptosis of the kidney, providing a molecular basis for a novel medical treatment of septic AKI.
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Affiliation(s)
- Xingkai Xu
- Emergency Department, Shanghai Baoshan Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai, China (mainland)
| | - Lulei Liao
- Emergency Department, Shanghai Baoshan Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai, China (mainland)
| | - Baisheng Hu
- Emergency Department, Shanghai Baoshan Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai, China (mainland)
| | - Hao Jiang
- Emergency Department, Shanghai Baoshan Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai, China (mainland)
| | - Meichun Tan
- Emergency Department, Shanghai Baoshan Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai, China (mainland)
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