1
|
Huang LF, Ye QR, Chen XC, Huang XR, Zhang QF, Wu CY, Liu HF, Yang C. Research Progress of Drug Delivery Systems Targeting the Kidneys. Pharmaceuticals (Basel) 2024; 17:625. [PMID: 38794195 PMCID: PMC11124227 DOI: 10.3390/ph17050625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 05/03/2024] [Accepted: 05/10/2024] [Indexed: 05/26/2024] Open
Abstract
Chronic kidney disease (CKD) affects more than 10% of the global population, and its incidence is increasing, partially due to an increase in the prevalence of disease risk factors. Acute kidney injury (AKI) is an independent risk factor for CKD and end-stage renal disease (ESRD). The pathogenic mechanisms of CKD provide several potential targets for its treatment. However, due to off-target effects, conventional drugs for CKD typically require high doses to achieve adequate therapeutic effects, leading to long-term organ toxicity. Therefore, ideal treatments that completely cure the different types of kidney disease are rarely available. Several approaches for the drug targeting of the kidneys have been explored in drug delivery system research. Nanotechnology-based drug delivery systems have multiple merits, including good biocompatibility, suitable degradability, the ability to target lesion sites, and fewer non-specific systemic effects. In this review, the development, potential, and limitations of low-molecular-weight protein-lysozymes, polymer nanomaterials, and lipid-based nanocarriers as drug delivery platforms for treating AKI and CKD are summarized.
Collapse
Affiliation(s)
| | | | | | | | | | | | - Hua-Feng Liu
- Guangdong Provincial Key Laboratory of Autophagy and Major Chronic Non-Communicable Diseases, Key Laboratory of Prevention and Management of Chronic Kidney Disease of Zhanjiang City, Institute of Nephrology, Affiliated Hospital of Guangdong Medical University, Zhanjiang 524001, China; (L.-F.H.); (Q.-R.Y.); (X.-C.C.); (X.-R.H.); (Q.-F.Z.); (C.-Y.W.)
| | - Chen Yang
- Guangdong Provincial Key Laboratory of Autophagy and Major Chronic Non-Communicable Diseases, Key Laboratory of Prevention and Management of Chronic Kidney Disease of Zhanjiang City, Institute of Nephrology, Affiliated Hospital of Guangdong Medical University, Zhanjiang 524001, China; (L.-F.H.); (Q.-R.Y.); (X.-C.C.); (X.-R.H.); (Q.-F.Z.); (C.-Y.W.)
| |
Collapse
|
2
|
Amador-Martínez I, Aparicio-Trejo OE, Bernabe-Yepes B, Aranda-Rivera AK, Cruz-Gregorio A, Sánchez-Lozada LG, Pedraza-Chaverri J, Tapia E. Mitochondrial Impairment: A Link for Inflammatory Responses Activation in the Cardiorenal Syndrome Type 4. Int J Mol Sci 2023; 24:15875. [PMID: 37958859 PMCID: PMC10650149 DOI: 10.3390/ijms242115875] [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: 09/26/2023] [Revised: 10/25/2023] [Accepted: 10/30/2023] [Indexed: 11/15/2023] Open
Abstract
Cardiorenal syndrome type 4 (CRS type 4) occurs when chronic kidney disease (CKD) leads to cardiovascular damage, resulting in high morbidity and mortality rates. Mitochondria, vital organelles responsible for essential cellular functions, can become dysfunctional in CKD. This dysfunction can trigger inflammatory responses in distant organs by releasing Damage-associated molecular patterns (DAMPs). These DAMPs are recognized by immune receptors within cells, including Toll-like receptors (TLR) like TLR2, TLR4, and TLR9, the nucleotide-binding domain, leucine-rich-containing family pyrin domain-containing-3 (NLRP3) inflammasome, and the cyclic guanosine monophosphate (cGMP)-adenosine monophosphate (AMP) synthase (cGAS)-stimulator of interferon genes (cGAS-STING) pathway. Activation of these immune receptors leads to the increased expression of cytokines and chemokines. Excessive chemokine stimulation results in the recruitment of inflammatory cells into tissues, causing chronic damage. Experimental studies have demonstrated that chemokines are upregulated in the heart during CKD, contributing to CRS type 4. Conversely, chemokine inhibitors have been shown to reduce chronic inflammation and prevent cardiorenal impairment. However, the molecular connection between mitochondrial DAMPs and inflammatory pathways responsible for chemokine overactivation in CRS type 4 has not been explored. In this review, we delve into mechanistic insights and discuss how various mitochondrial DAMPs released by the kidney during CKD can activate TLRs, NLRP3, and cGAS-STING immune pathways in the heart. This activation leads to the upregulation of chemokines, ultimately culminating in the establishment of CRS type 4. Furthermore, we propose using chemokine inhibitors as potential strategies for preventing CRS type 4.
Collapse
Affiliation(s)
- Isabel Amador-Martínez
- Posgrado en Ciencias Biológicas, Universidad Nacional Autónoma de México, Ciudad Universitaria, Mexico City 04510, Mexico; (I.A.-M.); (A.K.A.-R.)
- Departamento de Fisiopatología Cardio-Renal, Instituto Nacional de Cardiología Ignacio Chávez, Mexico City 14080, Mexico; (O.E.A.-T.); (L.G.S.-L.)
| | - Omar Emiliano Aparicio-Trejo
- Departamento de Fisiopatología Cardio-Renal, Instituto Nacional de Cardiología Ignacio Chávez, Mexico City 14080, Mexico; (O.E.A.-T.); (L.G.S.-L.)
| | - Bismarck Bernabe-Yepes
- Departamento de Biomedicina Cardiovascular, Instituto Nacional de Cardiología Ignacio Chávez, Mexico City 14080, Mexico;
| | - Ana Karina Aranda-Rivera
- Posgrado en Ciencias Biológicas, Universidad Nacional Autónoma de México, Ciudad Universitaria, Mexico City 04510, Mexico; (I.A.-M.); (A.K.A.-R.)
- Laboratorio F-315, Departamento de Biología, Facultad de Química, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico;
| | - Alfredo Cruz-Gregorio
- Departamento de Fisiología, Instituto Nacional de Cardiología Ignacio Chávez, Mexico City 14080, Mexico;
| | - Laura Gabriela Sánchez-Lozada
- Departamento de Fisiopatología Cardio-Renal, Instituto Nacional de Cardiología Ignacio Chávez, Mexico City 14080, Mexico; (O.E.A.-T.); (L.G.S.-L.)
| | - José Pedraza-Chaverri
- Laboratorio F-315, Departamento de Biología, Facultad de Química, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico;
| | - Edilia Tapia
- Departamento de Fisiopatología Cardio-Renal, Instituto Nacional de Cardiología Ignacio Chávez, Mexico City 14080, Mexico; (O.E.A.-T.); (L.G.S.-L.)
| |
Collapse
|
3
|
Liu W, Hu C, Zhang B, Li M, Deng F, Zhao S. Exosomal microRNA-342-5p secreted from adipose-derived mesenchymal stem cells mitigates acute kidney injury in sepsis mice by inhibiting TLR9. Biol Proced Online 2023; 25:10. [PMID: 37085762 PMCID: PMC10120132 DOI: 10.1186/s12575-023-00198-y] [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: 10/13/2022] [Accepted: 04/11/2023] [Indexed: 04/23/2023] Open
Abstract
BACKGROUND Sepsis-related acute kidney injury (AKI) is an inflammatory disease associated with extremely high mortality and health burden. This study explored the possibility of exosomes secreted by adipose-derived mesenchymal stem cells (AMSCs) serving as a carrier for microRNA (miR)-342-5p to alleviate sepsis-related AKI and investigated the possible mechanism. METHODS Serum was obtained from 30 patients with sepsis-associated AKI and 30 healthy volunteers for the measurement of miR-342-5p, blood urea nitrogen (BUN), and serum creatinine (SCr) levels. For in vitro experiments, AMSCs were transfected with LV-miR-342-5p or LV-miR-67 to acquire miR-342-5p-modified AMSCs and miR-67-modified AMSCs, from which the exosomes (AMSC-Exo-342 and AMSC-Exo-67) were isolated. The human renal proximal tubular epithelial cell line HK-2 was induced by lipopolysaccharide (LPS) to construct a cellular model of sepsis. The expression of Toll-like receptor 9 (TLR9) was also detected in AKI cells and mouse models. The interaction between miR-342-5p and TLR9 was predicted by dual luciferase reporter gene assay. RESULTS Detection on clinical serum samples showed that BUN, SCr, and TLR9 were elevated and miR-342-5p level was suppressed in the serum of patients with sepsis-associated AKI. Transfection with LV-miR-342-5p reinforced miR-342-5p expression in AMSCs and AMSC-secreted exosomes. miR-342-5p negatively targeted TLR9. LPS treatment enhanced TLR9 expression, reduced miR-342-5p levels, suppressed autophagy, and increased inflammation in HK-2 cells, while the opposite trends were observed in LPS-induced HK-2 cells exposed to AMSC-Exo-342, Rapa, miR-342-5p mimic, or si-TLR9. Additionally, the effects of AMSC-Exo-342 on autophagy and inflammation in LPS-induced cells could be weakened by 3-MA or pcDNA3.1-TLR9 treatment. Injection of AMSC-Exo-342 enhanced autophagy, mitigated kidney injury, suppressed inflammation, and reduced BUN and SCr levels in sepsis-related AKI mouse models. CONCLUSION miR-342-5p transferred by exosomes from miR-342-5p-modified AMSCs ameliorated AKI by inhibiting TLR9 to accelerate autophagy.
Collapse
Affiliation(s)
- Wei Liu
- Department of Critical Care Medicine, Xiangya Hospital of Central South University, Changsha, Hunan, People's Republic of China
- Hunan Provincial Clinical Research Center for Critical Care Medicine, Xiangya Hospital of Central South University, Changsha, Hunan, People's Republic of China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital of Central South University, Changsha, Hunan, People's Republic of China
| | - Chenghuan Hu
- Department of Critical Care Medicine, Xiangya Hospital of Central South University, Changsha, Hunan, People's Republic of China
- Hunan Provincial Clinical Research Center for Critical Care Medicine, Xiangya Hospital of Central South University, Changsha, Hunan, People's Republic of China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital of Central South University, Changsha, Hunan, People's Republic of China
| | - Buyao Zhang
- Department of Critical Care Medicine, Xiangya Hospital of Central South University, Changsha, Hunan, People's Republic of China
| | - Mingxia Li
- Department of Critical Care Medicine, Xiangya Hospital of Central South University, Changsha, Hunan, People's Republic of China
| | - Fuxing Deng
- Department of Critical Care Medicine, Xiangya Hospital of Central South University, Changsha, Hunan, People's Republic of China
| | - Shuangping Zhao
- Department of Critical Care Medicine, Xiangya Hospital of Central South University, Changsha, Hunan, People's Republic of China.
- Hunan Provincial Clinical Research Center for Critical Care Medicine, Xiangya Hospital of Central South University, Changsha, Hunan, People's Republic of China.
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital of Central South University, Changsha, Hunan, People's Republic of China.
| |
Collapse
|
4
|
Kang HB, Lim CK, Kim J, Han SJ. Oxypurinol protects renal ischemia/reperfusion injury via heme oxygenase-1 induction. Front Med (Lausanne) 2023; 10:1030577. [PMID: 36968831 PMCID: PMC10033620 DOI: 10.3389/fmed.2023.1030577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 02/20/2023] [Indexed: 03/11/2023] Open
Abstract
Renal ischemia/reperfusion (I/R) injury is a major cause of acute kidney injury (AKI) by increasing oxidative stress, inflammatory responses, and tubular cell death. Oxypurinol, an active metabolite of allopurinol, is a potent anti-inflammatory and antioxidant agent. To investigate the therapeutic potential and underlying mechanism of oxypurinol in ischemic AKI, C57BL/6 male mice were intraperitoneally injected with oxypurinol and subjected to renal I/R or sham surgery. We found that oxypurinol-treated mice had lower plasma creatinine and blood urea nitrogen levels and tubular damage (hematoxylin-and-eosin staining) compared to vehicle-treated mice after renal I/R injury. Furthermore, oxypurinol treatment reduced kidney inflammation (i.e., neutrophil infiltration and MIP-2 mRNA induction), oxidative stress (i.e., 4-HNE, heme oxygenase-1 [HO-1], 8-OHdG expression, and Catalase mRNA induction), and apoptosis (i.e., TUNEL or cleaved caspase-3-positive renal tubular cells), compared to vehicle-treated mice. Mechanistically, oxypurinol induced protein expressions of HO-1, which is a critical cytoprotective enzyme during ischemic AKI, and oxypurinol-mediated protection against ischemic AKI was completely eliminated by pretreatment with tin protoporphyrin IX, an HO-1 inhibitor. In conclusion, oxypurinol protects against renal I/R injury by reducing oxidative stress, inflammation, and apoptosis via HO-1 induction, suggesting its preventive potential in ischemic AKI.
Collapse
Affiliation(s)
- Hye Bin Kang
- Department of Biotechnology, College of Fisheries Sciences, Pukyong National University, Busan, Republic of Korea
| | - Chae Kyu Lim
- Department of St. Mary Pathology and Laboratory Medicine, Busan, Republic of Korea
| | - Jongwan Kim
- Department of Medical Laboratory Science, Dong-eui Institute of Technology, Busan, Republic of Korea
| | - Sang Jun Han
- Department of Biotechnology, College of Fisheries Sciences, Pukyong National University, Busan, Republic of Korea
- *Correspondence: Sang Jun Han
| |
Collapse
|
5
|
The Importance of Toll-like Receptor 9 Expression on Monocytes and Dendritic Cells in the Context of Epstein–Barr Virus Infection in the Immunopathogenesis of Primary Glomerulonephritis. Int J Mol Sci 2022; 23:ijms231911796. [PMID: 36233099 PMCID: PMC9570264 DOI: 10.3390/ijms231911796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 09/24/2022] [Accepted: 09/27/2022] [Indexed: 11/16/2022] Open
Abstract
Toll-like receptor 9 (TLR9) is activated by unmethylated cytosine-phosphate-guanosine (CpG) dinucleotides found in the genomes of pathogens such as Epstein–Barr virus (EBV). The aim of this study was to determine the role of TLR9 in the immunopathogenesis of IgA nephropathy (IgAN) and membranoproliferative glomerulonephritis (MPGN) in the context of Epstein–Barr virus (EBV) infection. For this purpose, the frequency of TLR9-positive monocytes and dendritic cells (DCs, i.e., BDCA-1; myeloid dendritic cells, and BDCA-2; plasmocytoid dendritic cells) was studied, and a quantitative analysis of the concentration of TLR9 in the serum of patients diagnosed with IgAN and MPGN was undertaken. Higher frequencies of TLR9-positive DCs and monocytes in IgAN and MPGN patients were observed as compared with the control group. Patients diagnosed with GN exhibited a higher percentage of BDCA-1+CD19− and BDCA-2+CD123+ DCs than patients in the control group. Moreover, serum TLR9 concentration was shown to be significantly correlated with EBV DNA copy number/µg DNA, IgG, IgM, serum albumin, total protein in 24-h urine collection test and the frequency of BDCA-2+CD123+ DCs in peripheral blood. Our findings confirm that TLR9 may be involved in the development of IgAN and MPGN.
Collapse
|
6
|
Doke T, Susztak K. The multifaceted role of kidney tubule mitochondrial dysfunction in kidney disease development. Trends Cell Biol 2022; 32:841-853. [PMID: 35473814 PMCID: PMC9464682 DOI: 10.1016/j.tcb.2022.03.012] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 03/27/2022] [Accepted: 03/30/2022] [Indexed: 12/24/2022]
Abstract
More than 800 million people suffer from kidney disease. Genetic studies and follow-up animal models and cell biological experiments indicate the key role of proximal tubule metabolism. Kidneys have one of the highest mitochondrial densities. Mitochondrial biogenesis, mitochondrial fusion and fission, and mitochondrial recycling, such as mitophagy are critical for proper mitochondrial function. Mitochondrial dysfunction can lead to an energetic crisis, orchestrate different types of cell death (apoptosis, necroptosis, pyroptosis, and ferroptosis), and influence cellular calcium levels and redox status. Collectively, mitochondrial defects in renal tubules contribute to epithelial atrophy, inflammation, or cell death, orchestrating kidney disease development.
Collapse
Affiliation(s)
- Tomohito Doke
- Department of Medicine, Renal Electrolyte and Hypertension Division, University of Pennsylvania, Philadelphia, PA, USA; Department of Genetics, University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA 19104, USA.
| | - Katalin Susztak
- Department of Medicine, Renal Electrolyte and Hypertension Division, University of Pennsylvania, Philadelphia, PA, USA; Department of Genetics, University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA 19104, USA.
| |
Collapse
|
7
|
The effect of two types of diet on apoptosis indexes, lipid profile and histopathological outcome in acute kidney injury during exercise. BMC Nephrol 2022; 23:315. [PMID: 36123655 PMCID: PMC9487158 DOI: 10.1186/s12882-022-02938-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 09/08/2022] [Indexed: 11/16/2022] Open
Abstract
Background Exercise and some pre-AKI diets have been shown to improve injury, apoptosis, and lipid profile. In this study, the effect of two different diets along with exercise training on acute kidney injury (AKI) was investigated. Materials and methods Laboratory rats were randomly divided into four groups of control, standard diet + exercise, exercise + calorie restriction (CR) and exercise + time restriction (TR). Each group was divided into two subgroups of AKI and no AKI. The animals received endurance training and diet regimens before AKI. Fasting blood glucose, serum creatinine, Bcl-2-associated X protein (Bax), B-cell lymphoma 2 (Bcl2) and histopathological outcome of renal tissue as well as serum lipid profile of animals were assessed 24 h after AKI. Results The percentage of changes in renal Bcl2 and Bax after AKI in the group with previous exercise was lower than the group without previous exercise (p < 0.01). After induction of AKI, serum lipid profile changed in non-exercised rats (p < 0.001). Also, after injury, fasting blood glucose levels increased in non-exercised rats (p < 0.05). After injury, the start of both CR and TR diets during exercise caused less change in Bcl2 and Bax of non-exercised rats compared to exercised rats (p < 0.001). CR diet along with exercise improved lipid profile, and also CR diet along exercise decreased fasting blood glucose levels (p < 0.001). Also, both the CR and TR diets during exercise caused fewer changes in histopathological outcome after AKI. Conclusion Exercise alone decreased changes in apoptotic and histopathological indexes, fasting blood glucose, as well as lipid profile of rats after AKI. Reduction of apoptosis and improvement of histopathological outcome after AKI appeared more when CR and TR diets were commenced during exercise. The reduction of lipid profile changes was more pronounced in the group that received CR diet during exercise.
Collapse
|
8
|
Nishimoto S, Sata M, Fukuda D. Expanding role of deoxyribonucleic acid-sensing mechanism in the development of lifestyle-related diseases. Front Cardiovasc Med 2022; 9:881181. [PMID: 36176986 PMCID: PMC9513035 DOI: 10.3389/fcvm.2022.881181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 08/15/2022] [Indexed: 11/14/2022] Open
Abstract
In lifestyle-related diseases, such as cardiovascular, metabolic, respiratory, and kidney diseases, chronic inflammation plays a causal role in their pathogenesis; however, underlying mechanisms of sterile chronic inflammation are not well-understood. Previous studies have confirmed the damage of cells in these organs in the presence of various risk factors such as diabetes, dyslipidemia, and cigarette smoking, releasing various endogenous ligands for pattern recognition receptors. These studies suggested that nucleic acids released from damaged tissues accumulate in these tissues, acting as an endogenous ligand. Undamaged DNA is an integral factor for the sustenance of life, whereas, DNA fragments, especially those from pathogens, are potent activators of the inflammatory response. Recent studies have indicated that inflammatory responses such as the production of type I interferon (IFN) induced by DNA-sensing mechanisms which contributes to self-defense system in innate immunity participates in the progression of inflammatory diseases by the recognition of nucleic acids derived from the host, including mitochondrial DNA (mtDNA). The body possesses several types of DNA sensors. Toll-like receptor 9 (TLR9) recognizes DNA fragments in the endosomes. In addition, the binding of DNA fragments in the cytosol activates cyclic guanosine monophosphate (GMP)-adenosine monophosphate (AMP) synthase (cGAS), resulting in the synthesis of the second messenger cyclic GMP-AMP (cGAMP). The binding of cGAMP to stimulator of interferon genes (STING) activates NF-κB and TBK-1 signaling and consequently the production of many inflammatory cytokines including IFNs. Numerous previous studies have demonstrated the role of DNA sensors in self-defense through the recognition of DNA fragments derived from pathogens. Beyond the canonical role of TLR9 and cGAS-STING, this review describes the role of these DNA-sensing mechanism in the inflammatory responses caused by endogenous DNA fragments, and in the pathogenesis of lifestyle-related diseases.
Collapse
Affiliation(s)
- Sachiko Nishimoto
- Faculty of Clinical Nutrition and Dietetics, Konan Women’s University, Kobe, Japan
- Department of Cardiovascular Medicine, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Masataka Sata
- Department of Cardiovascular Medicine, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Daiju Fukuda
- Department of Cardiovascular Medicine, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
- Department of Cardiovascular Medicine, Osaka Metropolitan University, Osaka, Japan
- *Correspondence: Daiju Fukuda, ,
| |
Collapse
|
9
|
Saber MM, Monir N, Awad AS, Elsherbiny ME, Zaki HF. TLR9: A friend or a foe. Life Sci 2022; 307:120874. [PMID: 35963302 DOI: 10.1016/j.lfs.2022.120874] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 08/05/2022] [Accepted: 08/06/2022] [Indexed: 10/15/2022]
Abstract
The innate immune system is a primary protective line in our body. It confers its protection through different pattern recognition receptors (PRRs), especially toll like receptors (TLRs). Toll like receptor 9 (TLR9) is an intracellular TLR, expressed in different immunological and non-immunological cells. Release of cellular components, such as proteins, nucleotides, and DNA confers a beneficial inflammatory response and maintains homeostasis for removing cellular debris during normal physiological conditions. However, during pathological cellular damage and stress signals, engagement between mtDNA and TLR9 acts as an alarm for starting inflammatory and autoimmune disorders. The controversial role of TLR9 in different diseases baffled scientists if it has a protective or deleterious effect after activation during insults. Targeting the immune system, especially the TLR9 needs further investigation to provide a therapeutic strategy to control inflammation and autoimmune disorders.
Collapse
Affiliation(s)
- Mona M Saber
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Giza, Egypt.
| | - Nada Monir
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ahram Canadian University, Giza, Egypt
| | - Azza S Awad
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ahram Canadian University, Giza, Egypt
| | - Marwa E Elsherbiny
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ahram Canadian University, Giza, Egypt
| | - Hala F Zaki
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Giza, Egypt
| |
Collapse
|
10
|
Repression of inflammatory pathways with Boswellia for alleviation of liver injury after renal ischemia reperfusion. Life Sci 2022; 306:120799. [PMID: 35863426 DOI: 10.1016/j.lfs.2022.120799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 07/01/2022] [Accepted: 07/08/2022] [Indexed: 11/22/2022]
Abstract
AIM Acute kidney injury (AKI) is a sudden incident that is linked with a high lethality rate commonly due to distant organ injury. This study aims to explore the role of standardized Boswellia serrata (containing 35 % boswellic acid) in attenuating kidney and liver damage in a model of rats with renal insult. MAIN METHODS Sprague-Dawley rats, exposed to renal injury via ischemia-reperfusion model, were administered a daily regimen of 1000 or 2000 mg/kg Boswellia for seven days then rats were sacrificed on day eight. Alanine aminotransferase, aspartate aminotransferase, serum creatinine and blood urea nitrogen, were assayed. TLR9, oxidative stress markers; namely MDA and GSH, inflammatory cytokines; namely, IL-6, IL-1β, and TNF-α, as well as NF-κB were also measured. KEY FINDINGS Renal ischemia-reperfusion injury (IRI) impaired renal and liver function significantly, but Boswellia attenuated this impairment in a dose-dependent fashion. Histopathological assessment of kidney and liver confirmed that Boswellia decreased damage severity. A marked increase in TLR9, NF-κB, IL-6, IL-1β, TNF-α, and MDA besides decreased GSH levels were observed in the kidney and liver after renal IRI. Boswellia attenuated increases in TLR9, NF-κB, IL-1β, TNF-α, and IL-6 and boosted antioxidant defences via decreasing MDA and increasing GSH in kidney and liver. Anti-inflammatory and antioxidant effects of Boswellia were mostly comparable to those of silymarin. SIGNIFICANCE We conclude that the anti-inflammatory and antioxidant effects of Boswellia could be beneficial in ameliorating kidney and liver damage after AKI and that TLR9 might be the connection that signals liver injury in response to renal damage.
Collapse
|
11
|
Upadhyay R, Batuman V. Aristolochic acid I induces proximal tubule injury through ROS/HMGB1/mt DNA mediated activation of TLRs. J Cell Mol Med 2022; 26:4277-4291. [PMID: 35765703 PMCID: PMC9345294 DOI: 10.1111/jcmm.17451] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 06/02/2022] [Accepted: 06/07/2022] [Indexed: 01/08/2023] Open
Abstract
Aristolochic acids (AAs) are extracted from certain plants as folk remedies for centuries until their nephrotoxicity and carcinogenicity were recognized. Aristolochic acid I (AAI) is one of the main pathogenic compounds, and it has nephrotoxic, carcinogenic and mutagenic effects. Previous studies have shown that AAI acts mainly on proximal renal tubular epithelial cells; however, the mechanisms of AAI‐induced proximal tubule cell damage are still not fully characterized. We exposed human kidney proximal tubule cells (PTCs; HK2 cell line) to AAI in vitro at different time/dose conditions and assessed cell proliferation, reactive oxygen species (ROS) generation, nitric oxide (NO) production, m‐RNA/ protein expressions and mitochondrial dysfunction. AAI exposure decreased proliferation and increased apoptosis, ROS generation / NO production in PTCs significantly at 24 h. Gene/ protein expression studies demonstrated activation of innate immunity (TLRs 2, 3, 4 and 9, HMGB1), inflammatory (IL6, TNFA, IL1B, IL18, TGFB and NLRP3) and kidney injury (LCN2) markers. AAI also induced epithelial‐mesenchymal transition (EMT) and mitochondrial dysfunction in HK2 cells. TLR9 knock‐down and ROS inhibition were able to ameliorate the toxic effect of AAI. In conclusion, AAI treatment caused injury to PTCs through ROS‐HMGB1/mitochondrial DNA (mt DNA)‐mediated activation of TLRs and inflammatory response.
Collapse
Affiliation(s)
- Rohit Upadhyay
- Section of Nephrology and Hypertension, John W. Deming Department of Medicine, Tulane University School of Medicine, New Orleans, Louisiana, USA
| | - Vecihi Batuman
- Section of Nephrology and Hypertension, John W. Deming Department of Medicine, Tulane University School of Medicine, New Orleans, Louisiana, USA.,Medicine Service, Section of Nephrology, Southeast Louisiana Veterans Health Care System (SLVHCS), New Orleans, Louisiana, USA
| |
Collapse
|
12
|
Early Plasma Nuclear DNA, Mitochondrial DNA, and Nucleosome Concentrations Are Associated With Acute Kidney Injury in Critically Ill Trauma Patients. Crit Care Explor 2022; 4:e0663. [PMID: 35372847 PMCID: PMC8963825 DOI: 10.1097/cce.0000000000000663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Circulating nucleic acids, alone and in complex with histones as nucleosomes, have been proposed to link systemic inflammation and coagulation after trauma to acute kidney injury (AKI). We sought to determine the association of circulating nucleic acids measured at multiple time points after trauma with AKI risk.
Collapse
|
13
|
Mitochondrial DNA-Mediated Inflammation in Acute Kidney Injury and Chronic Kidney Disease. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:9985603. [PMID: 34306320 PMCID: PMC8263241 DOI: 10.1155/2021/9985603] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 06/19/2021] [Indexed: 12/25/2022]
Abstract
The integrity and function of mitochondria are essential for normal kidney physiology. Mitochondrial DNA (mtDNA) has been widely a concern in recent years because its abnormalities may result in disruption of aerobic respiration, cellular dysfunction, and even cell death. Particularly, aberrant mtDNA copy number (mtDNA-CN) is associated with the development of acute kidney injury and chronic kidney disease, and urinary mtDNA-CN shows the potential to be a promising indicator for clinical diagnosis and evaluation of kidney function. Several lines of evidence suggest that mtDNA may also trigger innate immunity, leading to kidney inflammation and fibrosis. In mechanism, mtDNA can be released into the cytoplasm under cell stress and recognized by multiple DNA-sensing mechanisms, including Toll-like receptor 9 (TLR9), cytosolic cGAS-stimulator of interferon genes (STING) signaling, and inflammasome activation, which then mediate downstream inflammatory cascades. In this review, we summarize the characteristics of these mtDNA-sensing pathways mediating inflammatory responses and their role in the pathogenesis of acute kidney injury, nondiabetic chronic kidney disease, and diabetic kidney disease. In addition, we highlight targeting of mtDNA-mediated inflammatory pathways as a novel therapeutic target for these kidney diseases.
Collapse
|
14
|
Liu J, Jia Z, Gong W. Circulating Mitochondrial DNA Stimulates Innate Immune Signaling Pathways to Mediate Acute Kidney Injury. Front Immunol 2021; 12:680648. [PMID: 34248963 PMCID: PMC8264283 DOI: 10.3389/fimmu.2021.680648] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 06/07/2021] [Indexed: 11/21/2022] Open
Abstract
Mitochondrial dysfunction is increasingly considered as a critical contributor to the occurrence and progression of acute kidney injury (AKI). However, the mechanisms by which damaged mitochondria mediate AKI progression are multifactorial and complicated. Mitochondrial DNA (mtDNA) released from damaged mitochondria could serve as a danger-associated molecular pattern (DAMP) and activate the innate immune system through STING, TLR9, NLRP3, and some other adaptors, and further mediate tubular cell inflammation and apoptosis. Accumulating evidence has demonstrated the important role of circulating mtDNA and its related pathways in the progression of AKI, and regulating the proteins involved in these pathways may be an effective strategy to reduce renal tubular injury and alleviate AKI. Here, we aim to provide a comprehensive overview of recent studies on mtDNA-mediated renal pathological events to provide new insights in the setting of AKI.
Collapse
Affiliation(s)
- Jiaye Liu
- Nanjing Key Lab of Pediatrics, Children's Hospital of Nanjing Medical University, Nanjing, China.,Jiangsu Key Laboratory of Pediatrics, Nanjing Medical University, Nanjing, China.,Department of Nephrology, State Key Laboratory of Reproductive Medicine, Children's Hospital of Nanjing Medical University, Nanjing, China
| | - Zhanjun Jia
- Nanjing Key Lab of Pediatrics, Children's Hospital of Nanjing Medical University, Nanjing, China.,Jiangsu Key Laboratory of Pediatrics, Nanjing Medical University, Nanjing, China.,Department of Nephrology, State Key Laboratory of Reproductive Medicine, Children's Hospital of Nanjing Medical University, Nanjing, China
| | - Wei Gong
- Nanjing Key Lab of Pediatrics, Children's Hospital of Nanjing Medical University, Nanjing, China.,Jiangsu Key Laboratory of Pediatrics, Nanjing Medical University, Nanjing, China.,Department of Nephrology, State Key Laboratory of Reproductive Medicine, Children's Hospital of Nanjing Medical University, Nanjing, China
| |
Collapse
|
15
|
Ishikawa T, Abe K, Takana-Ishikawa M, Yoshida K, Watanabe T, Imakiire S, Hosokawa K, Hirano M, Hirano K, Tsutsui H. Chronic Inhibition of Toll-Like Receptor 9 Ameliorates Pulmonary Hypertension in Rats. J Am Heart Assoc 2021; 10:e019247. [PMID: 33787285 PMCID: PMC8174358 DOI: 10.1161/jaha.120.019247] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Background Recent accumulating evidence suggests that toll‐like receptor 9 (TLR9) is involved in the pathogenesis of cardiovascular diseases. However, its role in pulmonary hypertension remains uncertain. We hypothesized that TLR9 is involved in the development of pulmonary hypertension. Methods and Results A rat model of monocrotaline‐induced pulmonary hypertension was used to investigate the effects of TLR9 on hemodynamic parameters, vascular remodeling, and survival. Monocrotaline‐exposed rats significantly showed increases in plasma levels of mitochondrial DNA markers, which are recognized by TLR9, TLR9 activation in the lung, and interleukin‐6 mRNA level in the lung on day 14 after monocrotaline injection. Meanwhile, monocrotaline‐exposed rats showed elevated right ventricular systolic pressure, total pulmonary vascular resistance index and vascular remodeling, together with macrophage accumulation on day 21. In the preventive protocol, administration (days −3 to 21 after monocrotaline injection) of selective (E6446) or nonselective TLR9 inhibitor (chloroquine) significantly ameliorated the elevations of right ventricular systolic pressure and total pulmonary vascular resistance index as well as vascular remodeling and macrophage accumulation on day 21. These inhibitors also significantly reduced NF‐κB activation and interleukin‐6 mRNA levels to a similar extent. In the short‐term reversal protocol, E646 treatment (days 14–17 after monocrotaline injection) almost normalized NF‐κB activation and interleukin‐6 mRNA level, and reduced macrophage accumulation. In the prolonged reversal protocol, E6446 treatment (days 14–24 after monocrotaline injection) reversed total pulmonary vascular resistance index and vascular remodeling, and improved survival in monocrotaline‐exposed rats. Conclusions TLR9 is involved in the development of pulmonary hypertension concomitant via activation of the NF‐κB‒IL‐6 pathway. Inhibition of TLR9 may be a novel therapeutic strategy for pulmonary hypertension.
Collapse
Affiliation(s)
- Tomohito Ishikawa
- Department of Cardiovascular Medicine Faculty of Medical Sciences Kyushu University Fukuoka Japan.,Division of Cardiovascular Medicine Research Institute of Angiocardiology Faculty of Medical Sciences Kyushu University Fukuoka Japan
| | - Kohtaro Abe
- Department of Cardiovascular Medicine Faculty of Medical Sciences Kyushu University Fukuoka Japan.,Division of Cardiovascular Medicine Research Institute of Angiocardiology Faculty of Medical Sciences Kyushu University Fukuoka Japan
| | - Mariko Takana-Ishikawa
- Department of Cardiovascular Medicine Faculty of Medical Sciences Kyushu University Fukuoka Japan.,Division of Cardiovascular Medicine Research Institute of Angiocardiology Faculty of Medical Sciences Kyushu University Fukuoka Japan.,Department of Anesthesiology and Critical Care Medicine Graduate School of Medical Sciences Kyushu University Fukuoka Japan
| | - Keimei Yoshida
- Department of Cardiovascular Medicine Faculty of Medical Sciences Kyushu University Fukuoka Japan.,Division of Cardiovascular Medicine Research Institute of Angiocardiology Faculty of Medical Sciences Kyushu University Fukuoka Japan
| | - Takanori Watanabe
- Department of Cardiovascular Medicine Faculty of Medical Sciences Kyushu University Fukuoka Japan.,Division of Cardiovascular Medicine Research Institute of Angiocardiology Faculty of Medical Sciences Kyushu University Fukuoka Japan
| | - Satomi Imakiire
- Department of Cardiovascular Medicine Faculty of Medical Sciences Kyushu University Fukuoka Japan.,Division of Cardiovascular Medicine Research Institute of Angiocardiology Faculty of Medical Sciences Kyushu University Fukuoka Japan
| | - Kazuya Hosokawa
- Department of Cardiovascular Medicine Faculty of Medical Sciences Kyushu University Fukuoka Japan.,Division of Cardiovascular Medicine Research Institute of Angiocardiology Faculty of Medical Sciences Kyushu University Fukuoka Japan
| | - Mayumi Hirano
- Division of Molecular Cardiology Research Institute of Angiocardiology Graduate School of Medical Sciences Kyushu University Fukuoka Japan
| | - Katsuya Hirano
- Department of Cardiovascular Physiology Faculty of Medicine Kagawa University Miki-cho, Kita-gun Kagawa Japan
| | - Hiroyuki Tsutsui
- Department of Cardiovascular Medicine Faculty of Medical Sciences Kyushu University Fukuoka Japan.,Division of Cardiovascular Medicine Research Institute of Angiocardiology Faculty of Medical Sciences Kyushu University Fukuoka Japan
| |
Collapse
|
16
|
McSweeney KR, Gadanec LK, Qaradakhi T, Ali BA, Zulli A, Apostolopoulos V. Mechanisms of Cisplatin-Induced Acute Kidney Injury: Pathological Mechanisms, Pharmacological Interventions, and Genetic Mitigations. Cancers (Basel) 2021; 13:1572. [PMID: 33805488 PMCID: PMC8036620 DOI: 10.3390/cancers13071572] [Citation(s) in RCA: 119] [Impact Index Per Article: 39.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 03/19/2021] [Accepted: 03/25/2021] [Indexed: 02/06/2023] Open
Abstract
Administration of the chemotherapeutic agent cisplatin leads to acute kidney injury (AKI). Cisplatin-induced AKI (CIAKI) has a complex pathophysiological map, which has been linked to cellular uptake and efflux, apoptosis, vascular injury, oxidative and endoplasmic reticulum stress, and inflammation. Despite research efforts, pharmaceutical interventions, and clinical trials spanning over several decades, a consistent and stable pharmacological treatment option to reduce AKI in patients receiving cisplatin remains unavailable. This has been predominately linked to the incomplete understanding of CIAKI pathophysiology and molecular mechanisms involved. Herein, we detail the extensively known pathophysiology of cisplatin-induced nephrotoxicity that manifests and the variety of pharmacological and genetic alteration studies that target them.
Collapse
|
17
|
Habib R. Multifaceted roles of Toll-like receptors in acute kidney injury. Heliyon 2021; 7:e06441. [PMID: 33732942 PMCID: PMC7944035 DOI: 10.1016/j.heliyon.2021.e06441] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 10/08/2020] [Accepted: 03/03/2021] [Indexed: 12/13/2022] Open
Abstract
Toll-like receptors (TLRs) are a family of pattern recognition receptors (PRRs) in the first line defense system of our bodies; they are widely expressed on leukocytes and kidney epithelial cells. Infections due to pathogens or danger signals from injured tissues often activate several TLRs and these receptors mediate their signal transduction through the activation of transcription factors that regulate the expression of cytokine interleukin-1β (IL-1β), type I interferons (IFNs), and nuclear factor kappa light chain enhancer of activated B cells (NF-κB) dependent cytokines and chemokines. Acute kidney injury (AKI) involves early Toll-like receptors driven immunopathology, while resolution of inflammation is needed for rapid regeneration of injured tubular cells. Despite their well known function in the progression of inflammation; interestingly, activation of TLRs also has been implicated in renal epithelial repair through the induction of certain interleukins and improvement in autophagy mechanism. Studies have found that although the blockade of TLRs during the early injury phase of renal tissues prevented tubular necrosis, suppression of interleukins production and impaired kidney regeneration due to their blockade has been observed during the healing phase of tissue. Taken together, these results suggest that the two danger response programs of renal cells i.e. renal inflammation and regeneration may link at the level of TLRs. This review aims to emphasize on the role of TLRs signaling in different acute kidney injury phases. Understanding of these pathways may turn out to be effective as therapeutic option for kidney diseases.
Collapse
Affiliation(s)
- Rakhshinda Habib
- Dow Research Institute of Biotechnology and Biomedical Sciences, Dow University of Health Sciences, Karachi, 74200, Pakistan
| |
Collapse
|
18
|
Zheng H, Zhang Y, Li L, Zhang R, Luo Z, Yang Z, Ye Y, He J, Sun Q. Depletion of Toll-Like Receptor-9 Attenuates Renal Tubulointerstitial Fibrosis After Ischemia-Reperfusion Injury. Front Cell Dev Biol 2021; 9:641527. [PMID: 33644078 PMCID: PMC7907438 DOI: 10.3389/fcell.2021.641527] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 01/25/2021] [Indexed: 12/18/2022] Open
Abstract
Toll-like receptor-9 (TLR-9) is a potent proinflammatory receptor that mediates renal injury. However, the reported effects of TLR-9 are contradictory. Here, using a traditional mouse AKI→CKD transition model, the roles of TLR-9 during the transition from acute kidney injury (AKI) to chronic kidney disease (CKD) were further explored. Using a TLR-9–/– mouse, the effects and mechanisms of TLR-9 were investigated. Loss of TLR-9 elicited no obvious effects as regards renal function or histology during AKI in the early phases (24–48 h), while TLR-9 KO attenuated renal fibrosis (as shown using fibronectin and collagen III) and epithelial-to-mesenchymal transition (EMT) [E-cadherin (E-Cad) and α-smooth muscle actin (α-SMA)] on the long-term after AKI through the inhibition of macrophages infiltration, especially M2 macrophages. The roles of TLR-9 on macrophages were also explored using Raw264.7 macrophage cell line, and results indicated that the inhibition of TLR-9 on Raw 264.7 macrophages decreased the induction of M2 type macrophage in a dose-dependent manner. The roles of TLR-9 on renal tubular epithelial (RTE) cells were also explored. Conversely, TLR-9 depletion did not contribute to the improvement of fibrosis and EMT in vitro. Therefore, TLR-9 plays a critical role in the AKI→CKD transition. Attenuation of CKD post-AKI in the TLR-9 KO group mainly relies on the effects of TLR-9 on macrophages. These results also suggest that TLR-9 could be a therapeutic target for CKD.
Collapse
Affiliation(s)
- Haofeng Zheng
- Organ Transplantation Research Institute of Sun Yat-sen University, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yannan Zhang
- Organ Transplantation Research Institute of Sun Yat-sen University, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Lei Li
- Organ Transplantation Research Institute of Sun Yat-sen University, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Rui Zhang
- Organ Transplantation Research Institute of Sun Yat-sen University, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Zihuan Luo
- Organ Transplantation Research Institute of Sun Yat-sen University, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Zhe Yang
- Organ Transplantation Research Institute of Sun Yat-sen University, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yongrong Ye
- Organ Transplantation Research Institute of Sun Yat-sen University, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Jiannan He
- Organ Transplantation Research Institute of Sun Yat-sen University, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Qiquan Sun
- Organ Transplantation Research Institute of Sun Yat-sen University, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| |
Collapse
|
19
|
Kumar V. The Trinity of cGAS, TLR9, and ALRs Guardians of the Cellular Galaxy Against Host-Derived Self-DNA. Front Immunol 2021; 11:624597. [PMID: 33643304 PMCID: PMC7905024 DOI: 10.3389/fimmu.2020.624597] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Accepted: 12/29/2020] [Indexed: 12/15/2022] Open
Abstract
The immune system has evolved to protect the host from the pathogens and allergens surrounding their environment. The immune system develops in such a way to recognize self and non-self and develops self-tolerance against self-proteins, nucleic acids, and other larger molecules. However, the broken immunological self-tolerance leads to the development of autoimmune or autoinflammatory diseases. Pattern-recognition receptors (PRRs) are expressed by immunological cells on their cell membrane and in the cytosol. Different Toll-like receptors (TLRs), Nod-like receptors (NLRs) and absent in melanoma-2 (AIM-2)-like receptors (ALRs) forming inflammasomes in the cytosol, RIG (retinoic acid-inducible gene)-1-like receptors (RLRs), and C-type lectin receptors (CLRs) are some of the PRRs. The DNA-sensing receptor cyclic GMP–AMP synthase (cGAS) is another PRR present in the cytosol and the nucleus. The present review describes the role of ALRs (AIM2), TLR9, and cGAS in recognizing the host cell DNA as a potent damage/danger-associated molecular pattern (DAMP), which moves out to the cytosol from its housing organelles (nucleus and mitochondria). The introduction opens with the concept that the immune system has evolved to recognize pathogens, the idea of horror autotoxicus, and its failure due to the emergence of autoimmune diseases (ADs), and the discovery of PRRs revolutionizing immunology. The second section describes the cGAS-STING signaling pathway mediated cytosolic self-DNA recognition, its evolution, characteristics of self-DNAs activating it, and its role in different inflammatory conditions. The third section describes the role of TLR9 in recognizing self-DNA in the endolysosomes during infections depending on the self-DNA characteristics and various inflammatory diseases. The fourth section discusses about AIM2 (an ALR), which also binds cytosolic self-DNA (with 80–300 base pairs or bp) that inhibits cGAS-STING-dependent type 1 IFN generation but induces inflammation and pyroptosis during different inflammatory conditions. Hence, this trinity of PRRs has evolved to recognize self-DNA as a potential DAMP and comes into action to guard the cellular galaxy. However, their dysregulation proves dangerous to the host and leads to several inflammatory conditions, including sterile-inflammatory conditions autoinflammatory and ADs.
Collapse
Affiliation(s)
- Vijay Kumar
- Children's Health Queensland Clinical Unit, School of Clinical Medicine, Faculty of Medicine, Mater Research, University of Queensland, St. Lucia, Brisbane, QLD, Australia.,School of Biomedical Sciences, Faculty of Medicine, University of Queensland, St. Lucia, Brisbane, QLD, Australia
| |
Collapse
|
20
|
Vázquez-Carballo C, Guerrero-Hue M, García-Caballero C, Rayego-Mateos S, Opazo-Ríos L, Morgado-Pascual JL, Herencia-Bellido C, Vallejo-Mudarra M, Cortegano I, Gaspar ML, de Andrés B, Egido J, Moreno JA. Toll-Like Receptors in Acute Kidney Injury. Int J Mol Sci 2021; 22:ijms22020816. [PMID: 33467524 PMCID: PMC7830297 DOI: 10.3390/ijms22020816] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 01/09/2021] [Accepted: 01/11/2021] [Indexed: 12/16/2022] Open
Abstract
Acute kidney injury (AKI) is an important health problem, affecting 13.3 million individuals/year. It is associated with increased mortality, mainly in low- and middle-income countries, where renal replacement therapy is limited. Moreover, survivors show adverse long-term outcomes, including increased risk of developing recurrent AKI bouts, cardiovascular events, and chronic kidney disease. However, there are no specific treatments to decrease the adverse consequences of AKI. Epidemiological and preclinical studies show the pathological role of inflammation in AKI, not only at the acute phase but also in the progression to chronic kidney disease. Toll-like receptors (TLRs) are key regulators of the inflammatory response and have been associated to many cellular processes activated during AKI. For that reason, a number of anti-inflammatory agents targeting TLRs have been analyzed in preclinical studies to decrease renal damage during AKI. In this review, we updated recent knowledge about the role of TLRs, mainly TLR4, in the initiation and development of AKI as well as novel compounds targeting these molecules to diminish kidney injury associated to this pathological condition.
Collapse
Affiliation(s)
- Cristina Vázquez-Carballo
- Renal, Vascular and Diabetes Research Laboratory, IIS-Fundación Jiménez Díaz, Universidad Autónoma de Madrid, 28040 Madrid, Spain; (C.V.-C.); (S.R.-M.); (L.O.-R.); (C.H.-B.)
| | - Melania Guerrero-Hue
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Hospital Universitario Reina Sofía, 14004 Córdoba, Spain; (M.G.-H.); (C.G.-C.); (J.L.M.-P.); (M.V.-M.)
| | - Cristina García-Caballero
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Hospital Universitario Reina Sofía, 14004 Córdoba, Spain; (M.G.-H.); (C.G.-C.); (J.L.M.-P.); (M.V.-M.)
| | - Sandra Rayego-Mateos
- Renal, Vascular and Diabetes Research Laboratory, IIS-Fundación Jiménez Díaz, Universidad Autónoma de Madrid, 28040 Madrid, Spain; (C.V.-C.); (S.R.-M.); (L.O.-R.); (C.H.-B.)
| | - Lucas Opazo-Ríos
- Renal, Vascular and Diabetes Research Laboratory, IIS-Fundación Jiménez Díaz, Universidad Autónoma de Madrid, 28040 Madrid, Spain; (C.V.-C.); (S.R.-M.); (L.O.-R.); (C.H.-B.)
- Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders (CIBERDEM), 28040 Madrid, Spain
| | - José Luis Morgado-Pascual
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Hospital Universitario Reina Sofía, 14004 Córdoba, Spain; (M.G.-H.); (C.G.-C.); (J.L.M.-P.); (M.V.-M.)
| | - Carmen Herencia-Bellido
- Renal, Vascular and Diabetes Research Laboratory, IIS-Fundación Jiménez Díaz, Universidad Autónoma de Madrid, 28040 Madrid, Spain; (C.V.-C.); (S.R.-M.); (L.O.-R.); (C.H.-B.)
| | - Mercedes Vallejo-Mudarra
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Hospital Universitario Reina Sofía, 14004 Córdoba, Spain; (M.G.-H.); (C.G.-C.); (J.L.M.-P.); (M.V.-M.)
| | - Isabel Cortegano
- Immunobiology Department, Carlos III Health Institute, 28220 Majadahonda (Madrid), Spain; (I.C.); (M.L.G.); (B.d.A.)
| | - María Luisa Gaspar
- Immunobiology Department, Carlos III Health Institute, 28220 Majadahonda (Madrid), Spain; (I.C.); (M.L.G.); (B.d.A.)
| | - Belén de Andrés
- Immunobiology Department, Carlos III Health Institute, 28220 Majadahonda (Madrid), Spain; (I.C.); (M.L.G.); (B.d.A.)
| | - Jesús Egido
- Renal, Vascular and Diabetes Research Laboratory, IIS-Fundación Jiménez Díaz, Universidad Autónoma de Madrid, 28040 Madrid, Spain; (C.V.-C.); (S.R.-M.); (L.O.-R.); (C.H.-B.)
- Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders (CIBERDEM), 28040 Madrid, Spain
- Correspondence: (J.E.); (J.A.M.); Tel.: +34-915504800 (J.E.); +34-957-218039 (J.A.M.)
| | - Juan Antonio Moreno
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Hospital Universitario Reina Sofía, 14004 Córdoba, Spain; (M.G.-H.); (C.G.-C.); (J.L.M.-P.); (M.V.-M.)
- Biomedical Research Networking Center on Cardiovascular Diseases (CIBERCV), 28029 Madrid, Spain
- Department of Cell Biology, Physiology and Immunology, University of Cordoba, 140471 Cordoba, Spain
- Correspondence: (J.E.); (J.A.M.); Tel.: +34-915504800 (J.E.); +34-957-218039 (J.A.M.)
| |
Collapse
|
21
|
Wu S, Fang Z, Zhou S. Saturated hydrogen alleviates CCl 4-induced acute kidney injury via JAK2/STAT3/p65 signaling. J Int Med Res 2020; 48:300060519895353. [PMID: 31937177 PMCID: PMC7114280 DOI: 10.1177/0300060519895353] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Objectives This study assessed the protective effects of saturated hydrogen against CCl4-induced acute kidney injury (AKI) in mice, and investigated signaling pathways activated by exposure to saturated hydrogen. Methods A mouse model of CCl4-induced AKI was established; some mice were treated with saturated hydrogen. Levels of cystatin C and kidney injury molecule 1 were determined using enzyme-linked immunosorbent assays. Blood urea nitrogen and serum creatinine were measured on a fully automated biochemical analyzer. Interleukin-8, tumor necrosis factor-α, and interferon-γ in serum and kidney tissues were measured using enzyme-linked immunosorbent assays. Malondialdehyde, glutathione peroxidase, and superoxide dismutase in kidney tissues were measured using biochemical kits. Oxidative stress in kidney tissues was analyzed using nitrotyrosine staining. Expression levels of p-JAK2, p-STAT3, and p-p65 signal protein were assayed by immunohistochemistry and western blotting. Results Compared with untreated mice with CCl4-induced AKI, mice that were treated with saturated hydrogen exhibited improved renal function and reduced oxidative stress. Moreover, expression levels of p-JAK2, p-STAT3, and p-p65 were significantly reduced in mice treated with saturated hydrogen, compared with expression levels in untreated mice. Conclusions Treatment with saturated hydrogen can reduce oxidative stress and inflammatory cytokine activation, potentially through inhibition of JAK2/STAT3/p65 signaling, thereby protecting against AKI.
Collapse
Affiliation(s)
- Song Wu
- Emergency Department, The Third Affiliated Hospital of Soochow University, The First People's Hospital of Changzhou, Changzhou, Jiangsu, China
| | - Zheng Fang
- Emergency Department, The Third Affiliated Hospital of Soochow University, The First People's Hospital of Changzhou, Changzhou, Jiangsu, China
| | - Shujun Zhou
- Department of Critical Care Medicine, The Third Affiliated Hospital of Soochow University, The First People's Hospital of Changzhou, Changzhou, Jiangsu, China
| |
Collapse
|
22
|
Han SJ, Williams RM, Kim M, Heller DA, D'Agati V, Schmidt-Supprian M, Lee HT. Renal proximal tubular NEMO plays a critical role in ischemic acute kidney injury. JCI Insight 2020; 5:139246. [PMID: 32941183 PMCID: PMC7566738 DOI: 10.1172/jci.insight.139246] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 09/03/2020] [Indexed: 02/06/2023] Open
Abstract
We determined that renal proximal tubular (PT) NF-κB essential modulator (NEMO) plays a direct and critical role in ischemic acute kidney injury (AKI) using mice lacking renal PT NEMO and by targeted renal PT NEMO inhibition with mesoscale nanoparticle-encapsulated NEMO binding peptide (NBP MNP). We subjected renal PT NEMO-deficient mice, WT mice, and C57BL/6 mice to sham surgery or 30 minutes of renal ischemia and reperfusion (IR). C57BL/6 mice received NBP MNP or empty MNP before renal IR injury. Mice treated with NBP MNP and mice deficient in renal PT NEMO were protected against ischemic AKI, having decreased renal tubular necrosis, inflammation, and apoptosis compared with control MNP-treated or WT mice, respectively. Recombinant peptidylarginine deiminase type 4 (rPAD4) targeted kidney PT NEMO to exacerbate ischemic AKI in that exogenous rPAD4 exacerbated renal IR injury in WT mice but not in renal PT NEMO-deficient mice. Furthermore, rPAD4 upregulated proinflammatory cytokine mRNA and NF-κB activation in freshly isolated renal proximal tubules from WT mice but not from PT NEMO-deficient mice. Taken together, our studies suggest that renal PT NEMO plays a critical role in ischemic AKI by promoting renal tubular inflammation, apoptosis, and necrosis.
Collapse
Affiliation(s)
- Sang Jun Han
- Department of Anesthesiology, College of Physicians and Surgeons of Columbia University, New York, New York, USA
| | - Ryan M Williams
- Department of Biomedical Engineering, City College of New York, New York, New York, USA
| | - Mihwa Kim
- Department of Anesthesiology, College of Physicians and Surgeons of Columbia University, New York, New York, USA
| | - Daniel A Heller
- Department of Molecular Pharmacology & Chemistry, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Vivette D'Agati
- Department of Pathology, College of Physicians and Surgeons of Columbia University, New York, New York, USA
| | - Marc Schmidt-Supprian
- Institute of Experimental Hematology, School of Medicine, Technical University Munich, Munich, Germany
| | - H Thomas Lee
- Department of Anesthesiology, College of Physicians and Surgeons of Columbia University, New York, New York, USA
| |
Collapse
|
23
|
Plotnikov EY, Jankauskas SS, Zinovkin RA, Zorova LD, Zorov SD, Pevzner IB, Silachev DN, Zorov DB. A Combination of Kidney Ischemia and Injection of Isolated Mitochondria Leads to Activation of Inflammation and Increase in Mortality Rate in Rats. Bull Exp Biol Med 2020; 169:213-217. [PMID: 32651821 DOI: 10.1007/s10517-020-04853-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Indexed: 10/23/2022]
Abstract
We studied the development of acute kidney injury and animal death in the model of combined injury caused by kidney ischemia/reperfusion with simultaneous systemic administration of mitochondria. It was found that intraperitoneal injection of isolated mitochondria led to the appearance of mitochondrial DNA in the peripheral blood that could activate innate immunity. After administration of mitochondria, as well as after renal ischemia/reperfusion, proinflammatory changes were observed, primarily leukocytosis and granulocytosis. The combination of ischemia/reperfusion with injection of mitochondria caused a sharp increase in animal death, which may indicate a direct link between activation of TLR-signaling and high mortality of patients with combined injuries and multiple-organ failure in intensive care units. Treatment with mitochondria-targeted antioxidant increased animal survival, which indicated the participation of mitochondrial ROS in the development of systemic inflammatory response and death caused by acute renal failure.
Collapse
Affiliation(s)
- E Yu Plotnikov
- A. N. Belozersky Research Institute of Physico-Chemical Biology, M. V. Lomonosov Moscow State University, Moscow, Russia. .,V. I. Kulakov National Medical Research Center of Obstetrics, Gynecology, and Perinatology, Ministry of Health of the Russian Federation, Moscow, Russia. .,Institute of Molecular Medicine, I. M. Sechenov First Moscow State Medical University, Ministry of Health of the Russian Federation (Sechenov University), Moscow, Russia.
| | - S S Jankauskas
- A. N. Belozersky Research Institute of Physico-Chemical Biology, M. V. Lomonosov Moscow State University, Moscow, Russia
| | - R A Zinovkin
- A. N. Belozersky Research Institute of Physico-Chemical Biology, M. V. Lomonosov Moscow State University, Moscow, Russia.,Institute of Molecular Medicine, I. M. Sechenov First Moscow State Medical University, Ministry of Health of the Russian Federation (Sechenov University), Moscow, Russia
| | - L D Zorova
- A. N. Belozersky Research Institute of Physico-Chemical Biology, M. V. Lomonosov Moscow State University, Moscow, Russia.,V. I. Kulakov National Medical Research Center of Obstetrics, Gynecology, and Perinatology, Ministry of Health of the Russian Federation, Moscow, Russia
| | - S D Zorov
- Faculty of Bioengineering and Bioinformatics, M. V. Lomonosov Moscow State University, Moscow, Russia
| | - I B Pevzner
- A. N. Belozersky Research Institute of Physico-Chemical Biology, M. V. Lomonosov Moscow State University, Moscow, Russia.,V. I. Kulakov National Medical Research Center of Obstetrics, Gynecology, and Perinatology, Ministry of Health of the Russian Federation, Moscow, Russia
| | - D N Silachev
- A. N. Belozersky Research Institute of Physico-Chemical Biology, M. V. Lomonosov Moscow State University, Moscow, Russia.,V. I. Kulakov National Medical Research Center of Obstetrics, Gynecology, and Perinatology, Ministry of Health of the Russian Federation, Moscow, Russia
| | - D B Zorov
- A. N. Belozersky Research Institute of Physico-Chemical Biology, M. V. Lomonosov Moscow State University, Moscow, Russia.,V. I. Kulakov National Medical Research Center of Obstetrics, Gynecology, and Perinatology, Ministry of Health of the Russian Federation, Moscow, Russia
| |
Collapse
|
24
|
Jin J, Sun H, Shi C, Yang H, Wu Y, Li W, Dong Y, Cai L, Meng X. Circular RNA in renal diseases. J Cell Mol Med 2020; 24:6523-6533. [PMID: 32333642 PMCID: PMC7299708 DOI: 10.1111/jcmm.15295] [Citation(s) in RCA: 89] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 03/28/2020] [Accepted: 03/31/2020] [Indexed: 02/06/2023] Open
Abstract
Circular RNA (circRNA) is a newly described type of non-coding RNA. Active research is greatly enriching the current understanding of the expression and role of circRNA, and a large amount of evidence has implicated circRNA in the pathogenesis of certain renal diseases, such as renal cell carcinoma, acute kidney injury, diabetic nephropathy and lupus nephritis. Studies have found evidence that circRNAs regulate programmed cell death, invasion, and metastasis and serve as biomarkers in renal diseases. Recently, circRNAs were identified in exosomes secreted by the kidneys. Nevertheless, the function of circRNA in renal diseases remains ambiguous. Given that circRNAs are regulators of gene expression, they may be involved in the pathology of multiple renal diseases. Additionally, emerging evidence is showing that circulating circRNAs may serve as novel biomarkers for renal disease. In this review, we have summarized the identification, biogenesis, degradation, and functions of circRNA and have evaluated the roles of circRNA in renal diseases.
Collapse
Affiliation(s)
- Juan Jin
- Department of PharmacologyAnhui Medical UniversityHefeiChina
| | - Haolu Sun
- Department of PharmacologyAnhui Medical UniversityHefeiChina
| | - Chao Shi
- Department of Cardiac SurgeryFirst Affiliated Hospital of Bengbu Medical CollegeBengbu CityChina
| | - Hui Yang
- Department of PharmacologyAnhui Medical UniversityHefeiChina
| | - Yiwan Wu
- Department of PharmacologyAnhui Medical UniversityHefeiChina
| | - Wanhai Li
- Department of Cardiac SurgeryFirst Affiliated Hospital of Bengbu Medical CollegeBengbu CityChina
| | - Yu‐hang Dong
- The Key Laboratory of Major Autoimmune DiseasesAnhui Institute of Innovative DrugsSchool of PharmacyAnhui Medical UniversityHefeiChina
| | - Liang Cai
- The Key Laboratory of Major Autoimmune DiseasesAnhui Institute of Innovative DrugsSchool of PharmacyAnhui Medical UniversityHefeiChina
| | - Xiao‐ming Meng
- The Key Laboratory of Major Autoimmune DiseasesAnhui Institute of Innovative DrugsSchool of PharmacyAnhui Medical UniversityHefeiChina
| |
Collapse
|
25
|
Tilstra JS, John S, Gordon RA, Leibler C, Kashgarian M, Bastacky S, Nickerson KM, Shlomchik MJ. B cell-intrinsic TLR9 expression is protective in murine lupus. J Clin Invest 2020; 130:3172-3187. [PMID: 32191633 PMCID: PMC7260024 DOI: 10.1172/jci132328] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 03/05/2020] [Indexed: 12/26/2022] Open
Abstract
Toll-like receptor 9 (TLR9) is a regulator of disease pathogenesis in systemic lupus erythematosus (SLE). Why TLR9 represses disease while TLR7 and MyD88 have the opposite effect remains undefined. To begin to address this question, we created 2 alleles to manipulate TLR9 expression, allowing for either selective deletion or overexpression. We used these to test cell type-specific effects of Tlr9 expression on the regulation of SLE pathogenesis. Notably, Tlr9 deficiency in B cells was sufficient to exacerbate nephritis while extinguishing anti-nucleosome antibodies, whereas Tlr9 deficiency in dendritic cells (DCs), plasmacytoid DCs, and neutrophils had no discernable effect on disease. Thus, B cell-specific Tlr9 deficiency unlinked disease from autoantibody production. Critically, B cell-specific Tlr9 overexpression resulted in ameliorated nephritis, opposite of the effect of deleting Tlr9. Our findings highlight the nonredundant role of B cell-expressed TLR9 in regulating lupus and suggest therapeutic potential in modulating and perhaps even enhancing TLR9 signals in B cells.
Collapse
Affiliation(s)
- Jeremy S. Tilstra
- Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Shinu John
- Department of Laboratory Medicine, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Rachael A. Gordon
- Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Claire Leibler
- Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Michael Kashgarian
- Department of Pathology, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Sheldon Bastacky
- Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Kevin M. Nickerson
- Department of Laboratory Medicine, Yale University School of Medicine, New Haven, Connecticut, USA
- Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Mark J. Shlomchik
- Department of Laboratory Medicine, Yale University School of Medicine, New Haven, Connecticut, USA
- Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| |
Collapse
|
26
|
Lin P, Pan Y, Chen H, Jiang L, Liao Y. Key genes of renal tubular necrosis: a bioinformatics analysis. Transl Androl Urol 2020; 9:654-664. [PMID: 32420172 PMCID: PMC7215026 DOI: 10.21037/tau.2019.11.24] [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] [Indexed: 12/29/2022] Open
Abstract
Background To explore the key genes in renal tubular necrosis. Methods Microarray datasets GSE69644, GSE27168, and GSE2027 were downloaded from the Gene Expression Omnibus database. Differentially expressed genes (DEGs) were identified and we performed functional enrichment analysis. The network of protein interaction and gene interaction was constructed, and the module analysis was conducted using Cytoscape. Results A total of 543 DEGs and 13 hub genes were identified. The correlation analysis between the hub genes and the clinical characteristics of tubular necrosis indicated that the patients with high expression of SPAG5 and BIRC5 had better renal function. Patients with high expression of KIF14, KIF20A, MAD2L1, CKAP2, CDC25C, and CENPEN had poor renal function. Four of those hub genes participate in the cell cycle, apoptosis, and mismatch repair by regulating important genes in the pathway. Conclusions Our study suggests that CDC25C, MAD2L, BIRC5, and EXO1 participate in the cell cycle, apoptosis, and mismatch repair during renal tubule necrosis (RTN) and have an impact on renal function.
Collapse
Affiliation(s)
- Peng Lin
- Department of Nephrology, First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - Yongqing Pan
- Department of Nephrology, First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - Hang Chen
- Department of Nephrology, First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - Ling Jiang
- Department of Nephrology, First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - Yunhua Liao
- Department of Nephrology, First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| |
Collapse
|
27
|
Ullah M, Liu DD, Rai S, Dadhania A, Jonnakuti S, Concepcion W, Thakor AS. Reversing Acute Kidney Injury Using Pulsed Focused Ultrasound and MSC Therapy: A Role for HSP-Mediated PI3K/AKT Signaling. MOLECULAR THERAPY-METHODS & CLINICAL DEVELOPMENT 2020; 17:683-694. [PMID: 32346546 PMCID: PMC7177168 DOI: 10.1016/j.omtm.2020.03.023] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 03/25/2020] [Indexed: 12/14/2022]
Abstract
Acute kidney injury (AKI) is characterized by a sudden failure of renal function, but despite increasing worldwide prevalence, current treatments are largely supportive, with no curative therapies. Mesenchymal stromal cell (MSC) therapy has been shown to have a promising regenerative effect in AKI but is limited by the ability of cells to home to damaged tissue. Pulsed focused ultrasound (pFUS), wherein target tissues are sonicated by short bursts of sound waves, has been reported to enhance MSC homing by upregulating local homing signals. However, the exact mechanism by which pFUS enhances MSC therapy remains insufficiently explored. In this study, we studied the effect of bone marrow-derived MSCs (BM-MSCs), in conjunction with pFUS, in a mouse model of cisplatin-induced AKI. Here, BM-MSCs improved kidney function, reduced histological markers of kidney injury, decreased inflammation and apoptosis, and promoted cellular proliferation. Surprisingly, whereas pFUS did not upregulate local cytokine expression or improve BM-MSC homing, it did potentiate the effect of MSC treatment in AKI. Further analysis linked this effect to the upregulation of heat shock protein (HSP)20/HSP40 and subsequent phosphatidylinositol 3-kinase (PI3K)/Akt signaling. In summary, our results suggest that pFUS and BM-MSCs have independent as well as synergistic therapeutic effects in the context of AKI.
Collapse
Affiliation(s)
- Mujib Ullah
- Interventional Regenerative Medicine and Imaging Laboratory, Department of Radiology, Stanford University, Palo Alto, CA, USA
| | - Daniel D Liu
- Interventional Regenerative Medicine and Imaging Laboratory, Department of Radiology, Stanford University, Palo Alto, CA, USA
| | - Sravanthi Rai
- Interventional Regenerative Medicine and Imaging Laboratory, Department of Radiology, Stanford University, Palo Alto, CA, USA
| | - Arya Dadhania
- Interventional Regenerative Medicine and Imaging Laboratory, Department of Radiology, Stanford University, Palo Alto, CA, USA
| | - Sriya Jonnakuti
- Interventional Regenerative Medicine and Imaging Laboratory, Department of Radiology, Stanford University, Palo Alto, CA, USA
| | - Waldo Concepcion
- Interventional Regenerative Medicine and Imaging Laboratory, Department of Radiology, Stanford University, Palo Alto, CA, USA
| | - Avnesh S Thakor
- Interventional Regenerative Medicine and Imaging Laboratory, Department of Radiology, Stanford University, Palo Alto, CA, USA
| |
Collapse
|
28
|
Kulkarni HS, Scozzi D, Gelman AE. Recent advances into the role of pattern recognition receptors in transplantation. Cell Immunol 2020; 351:104088. [PMID: 32183988 DOI: 10.1016/j.cellimm.2020.104088] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 03/05/2020] [Accepted: 03/06/2020] [Indexed: 12/19/2022]
Abstract
Pattern recognition receptors (PRRs) are germline-encoded sensors best characterized for their critical role in host defense. However, there is accumulating evidence that organ transplantation induces the release or display of molecular patterns of cellular injury and death that trigger PRR-mediated inflammatory responses. There are also new insights that indicate PRRs are able to distinguish between self and non-self, suggesting the existence of non-clonal mechanisms of allorecognition. Collectively, these reports have spurred considerable interest into whether PRRs or their ligands can be targeted to promote transplant survival. This review examines the mounting evidence that PRRs play in transplant-mediated inflammation. Given the large number of PRRs, we will focus on members from four families: the complement system, toll-like receptors, the formylated peptide receptor, and scavenger receptors through examining reports of their activity in experimental models of cellular and solid organ transplantation as well as in the clinical setting.
Collapse
Affiliation(s)
- Hrishikesh S Kulkarni
- Department of Medicine, Division of Pulmonary & Critical Care Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Davide Scozzi
- Department of Surgery, Division of Cardiothoracic Surgery, Washington University School of Medicine, St. Louis, MO, USA
| | - Andrew E Gelman
- Department of Pathology & Immunology, Washington University School of Medicine, St. Louis, MO, USA; Department of Surgery, Division of Cardiothoracic Surgery, Washington University School of Medicine, St. Louis, MO, USA.
| |
Collapse
|
29
|
Activation of sirtuin1 protects against ischemia/reperfusion-induced acute kidney injury. Biomed Pharmacother 2020; 125:110021. [PMID: 32092826 DOI: 10.1016/j.biopha.2020.110021] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 02/07/2020] [Accepted: 02/13/2020] [Indexed: 12/16/2022] Open
Abstract
Sirtuin1 (SIRT1), a class III histone deacetylase, exerts a protective role against kidney injury. However, its functions in renal ischemia/reperfusion (I/R) injury remains unclear as yet. In this study, we established acute kidney injury (AKI) rat model through renal ischemia and reperfusion, and the role of SIRT1 in I/R-induced AKI was investigated both in vivo and in vitro. In in vivo study, SIRT1 was expressed in tubular epithelial cells (TECs) and its expression was upregulated after I/R treatment. Meanwhile, our in vitro experiment confirmed that the expression of SIRT1 was also elevated in human renal proximal tubular epithelial (HK2) cells treated with hypoxia and reoxygenation (H/R). Notably, activation of SIRT1 by resveratrol (Res, an activator of SIRT1) could significantly ameliorate renal function and reduce the TECs apoptosis in rats. Likewise, Res intervention also reduced the apoptosis and the production of reactive oxygen species in HK2 cells. Furthermore, we found that the autophagy level was upregulated in I/R injury, which could be raised further through resveratrol intervention; and chloroquine (CQ, an autophagy inhibitor) did reverse these protective effects of SIRT1 activation. Taken together, our results suggest that SIRT1 plays a protective role by autophagy induction in I/R- induced AKI. Its role might serve as a preventive approach in I/R-associated AKI.
Collapse
|
30
|
Han SJ, Williams RM, D'Agati V, Jaimes EA, Heller DA, Lee HT. Selective nanoparticle-mediated targeting of renal tubular Toll-like receptor 9 attenuates ischemic acute kidney injury. Kidney Int 2020; 98:76-87. [PMID: 32386967 DOI: 10.1016/j.kint.2020.01.036] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 01/24/2020] [Accepted: 01/31/2020] [Indexed: 12/12/2022]
Abstract
We developed an innovative therapy for ischemic acute kidney injury with discerning kidney-targeted delivery of a selective Toll-like receptor 9 (TLR9) antagonist in mice subjected to renal ischemia reperfusion injury. Our previous studies showed that mice deficient in renal proximal tubular TLR9 were protected against renal ischemia reperfusion injury demonstrating a critical role for renal proximal tubular TLR9 in generating ischemic acute kidney injury. Herein, we used 300-400 nm polymer-based mesoscale nanoparticles that localize to the renal tubules after intravenous injection. Mice were subjected to sham surgery or 30 minutes renal ischemia and reperfusion injury after receiving mesoscale nanoparticles encapsulated with a selective TLR9 antagonist (unmethylated CpG oligonucleotide ODN2088) or mesoscale nanoparticles encapsulating a negative control oligonucleotide. Mice treated with the encapsulated TLR9 antagonist either six hours before renal ischemia, at the time of reperfusion or 1.5 hours after reperfusion were protected against ischemic acute kidney injury. The ODN2088-encapsulated nanoparticles attenuated renal tubular necrosis, inflammation, decreased proinflammatory cytokine synthesis. neutrophil and macrophage infiltration and apoptosis, decreased DNA fragmentation and caspase 3/8 activation when compared to the negative control nanoparticle treated mice. Taken together, our studies further suggest that renal proximal tubular TLR9 activation exacerbates ischemic acute kidney injury by promoting renal tubular inflammation, apoptosis and necrosis after ischemia reperfusion. Thus, our studies suggest a potential promising therapy for ischemic acute kidney injury with selective kidney tubular targeting of TLR9 using mesoscale nanoparticle-based drug delivery.
Collapse
Affiliation(s)
- Sang Jun Han
- Department of Anesthesiology, College of Physicians and Surgeons of Columbia University, New York, New York, USA
| | - Ryan M Williams
- Department of Molecular Pharmacology & Chemistry, Memorial Sloan Kettering Cancer Center, New York, New York, USA; Department of Biomedical Engineering, City College of New York, New York, New York, USA
| | - Vivette D'Agati
- Department of Pathology, College of Physicians and Surgeons of Columbia University, New York, New York, USA
| | - Edgar A Jaimes
- Renal Service, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Daniel A Heller
- Department of Molecular Pharmacology & Chemistry, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - H Thomas Lee
- Department of Anesthesiology, College of Physicians and Surgeons of Columbia University, New York, New York, USA.
| |
Collapse
|
31
|
Maelfait J, Liverpool L, Rehwinkel J. Nucleic Acid Sensors and Programmed Cell Death. J Mol Biol 2020; 432:552-568. [PMID: 31786265 PMCID: PMC7322524 DOI: 10.1016/j.jmb.2019.11.016] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 11/15/2019] [Accepted: 11/15/2019] [Indexed: 02/07/2023]
Abstract
Nucleic acids derived from microorganisms are powerful triggers for innate immune responses. Proteins called RNA and DNA sensors detect foreign nucleic acids and, in mammalian cells, include RIG-I, cGAS, and AIM2. On binding to nucleic acids, these proteins initiate signaling cascades that activate host defense responses. An important aspect of this defense program is the production of cytokines such as type I interferons and IL-1β. Studies conducted over recent years have revealed that nucleic acid sensors also activate programmed cell death pathways as an innate immune response to infection. Indeed, RNA and DNA sensors induce apoptosis, pyroptosis, and necroptosis. Cell death via these pathways prevents replication of pathogens by eliminating the infected cell and additionally contributes to the release of cytokines and inflammatory mediators. Interestingly, recent evidence suggests that programmed cell death triggered by nucleic acid sensors plays an important role in a number of noninfectious pathologies. In addition to nonself DNA and RNA from microorganisms, nucleic acid sensors also recognize endogenous nucleic acids, for example when cells are damaged by genotoxic agents and in certain autoinflammatory diseases. This review article summarizes current knowledge on the links between nucleic acid sensing and cell death and explores important open questions for future studies in this area.
Collapse
Affiliation(s)
- Jonathan Maelfait
- VIB Center for Inflammation Research, 9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium.
| | - Layal Liverpool
- Medical Research Council Human Immunology Unit, Medical Research Council Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford OX3 9DS, UK
| | - Jan Rehwinkel
- Medical Research Council Human Immunology Unit, Medical Research Council Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford OX3 9DS, UK.
| |
Collapse
|
32
|
Han SJ, Lee HT. Mechanisms and therapeutic targets of ischemic acute kidney injury. Kidney Res Clin Pract 2019; 38:427-440. [PMID: 31537053 PMCID: PMC6913588 DOI: 10.23876/j.krcp.19.062] [Citation(s) in RCA: 135] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2019] [Revised: 07/13/2019] [Accepted: 07/17/2019] [Indexed: 12/19/2022] Open
Abstract
Acute kidney injury (AKI) due to renal ischemia reperfusion (IR) is a major clinical problem without effective therapy and is a significant and frequent cause of morbidity and mortality during the perioperative period. Although the pathophysiology of ischemic AKI is not completely understood, several important mechanisms of renal IR-induced AKI have been studied. Renal ischemia and subsequent reperfusion injury initiates signaling cascades mediating renal cell necrosis, apoptosis, and inflammation, leading to AKI. Better understanding of the molecular and cellular pathophysiological mechanisms underlying ischemic AKI will provide more targeted approach to prevent and treat renal IR injury. In this review, we summarize important mechanisms of ischemic AKI, including renal cell death pathways and the contribution of endothelial cells, epithelial cells, and leukocytes to the inflammatory response during ischemic AKI. Additionally, we provide some updated potential therapeutic targets for the prevention or treatment of ischemic AKI, including Toll-like receptors, adenosine receptors, and peptidylarginine deiminase 4. Finally, we propose mechanisms of ischemic AKI-induced liver, intestine, and kidney dysfunction and systemic inflammation mainly mediated by Paneth cell degranulation as a potential explanation for the high mortality observed with AKI.
Collapse
Affiliation(s)
- Sang Jun Han
- Department of Anesthesiology, College of Physicians and Surgeons of Columbia University, New York, NY, USA
| | - H Thomas Lee
- Department of Anesthesiology, College of Physicians and Surgeons of Columbia University, New York, NY, USA
| |
Collapse
|
33
|
Han SJ, Kim M, D'Agati VD, Lee HT. Norepinephrine released by intestinal Paneth cells exacerbates ischemic AKI. Am J Physiol Renal Physiol 2019; 318:F260-F272. [PMID: 31813250 DOI: 10.1152/ajprenal.00471.2019] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Small intestinal Paneth cells play a critical role in acute kidney injury (AKI) and remote organ dysfunction by synthesizing and releasing IL-17A. In addition, intestine-derived norepinephrine is a major mediator of hepatic injury and systemic inflammation in sepsis. We tested the hypothesis that small intestinal Paneth cells synthesize and release norepinephrine to exacerbate ischemic AKI. After ischemic AKI, we demonstrated larger increases in portal venous norepinephrine levels compared with plasma norepinephrine in mice, consistent with an intestinal source of norepinephrine release after renal ischemia and reperfusion. We demonstrated that murine small intestinal Paneth cells express tyrosine hydroxylase mRNA and protein, a critical rate-limiting enzyme for the synthesis of norepinephrine. We also demonstrated mRNA expression for tyrosine hydroxylase in human small intestinal Paneth cells. Moreover, freshly isolated small intestinal crypts expressed significantly higher norepinephrine levels after ischemic AKI compared with sham-operated mice. Suggesting a critical role of IL-17A in Paneth cell-mediated release of norepinephrine, recombinant IL-17A induced norepinephrine release in the small intestine of mice. Furthermore, mice deficient in Paneth cells (SOX9 villin Cre mice) have reduced plasma norepinephrine levels after ischemic AKI. Finally, supporting a critical role for norepinephrine in generating ischemic AKI, treatment with the selective α-adrenergic antagonists yohimbine and phentolamine protected against murine ischemic AKI with significantly reduced renal tubular necrosis, inflammation, and apoptosis and less hepatic dysfunction. Taken together, we identify Paneth cells as a critical source of norepinephrine release that may lead to intestinal and liver injury and systemic inflammation after AKI.
Collapse
Affiliation(s)
- Sang Jun Han
- Department of Anesthesiology, College of Physicians and Surgeons of Columbia University, New York, New York
| | - Mihwa Kim
- Department of Anesthesiology, College of Physicians and Surgeons of Columbia University, New York, New York
| | - Vivette Denise D'Agati
- Department of Pathology, College of Physicians and Surgeons of Columbia University, New York, New York
| | - H Thomas Lee
- Department of Anesthesiology, College of Physicians and Surgeons of Columbia University, New York, New York
| |
Collapse
|
34
|
Naito Y, Tsuji T, Nagata S, Tsuji N, Fujikura T, Ohashi N, Kato A, Miyajima H, Yasuda H. IL-17A activated by Toll-like receptor 9 contributes to the development of septic acute kidney injury. Am J Physiol Renal Physiol 2019; 318:F238-F247. [PMID: 31760767 DOI: 10.1152/ajprenal.00313.2019] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Toll-like receptor 9 (TLR9), which is activated by endogenously released mtDNA during sepsis, contributes to the development of polymicrobial septic acute kidney injury (AKI). However, downstream factors of TLR9 to AKI remain unknown. We hypothesized that IL-17A activated by TLR9 may play a critical role in septic AKI development. To determine the effects of TLR9 on IL-17A production in septic AKI, we used a cecal ligation and puncture (CLP) model in Tlr9 knockout (Tlr9KO) mice and wild-type (WT) littermates. We also investigated the pathway from TLR9 activation in dendritic cells (DCs) to IL-17A production by γδT cells in vitro. To elucidate the effects of IL-17A on septic AKI, Il-17a knockout (Il-17aKO) mice and WT littermates were subjected to CLP. We further investigated the relationship between the TLR9-IL-17A axis and septic AKI by intravenously administering recombinant IL-17A or vehicle into Tlr9KO mice and assessing kidney function. IL-17A levels in both plasma and the peritoneal cavity and mRNA levels of IL-23 in the spleen were significantly higher in WT mice after CLP than in Tlr9KO mice. Bone marrow-derived DCs activated by TLR9 induced IL-23 and consequently promoted IL-17A production in γδT cells in vitro. Knockout of Il-17a improved survival, functional and morphological aspects of AKI, and splenic apoptosis after CLP. Exogenous IL-17A administration aggravated CLP-induced AKI attenuated by knockout of Tlr9. TLR9 in DCs mediated IL-17A production in γδT cells during sepsis and contributed to the development of septic AKI.
Collapse
Affiliation(s)
- Yoshitaka Naito
- First Department of Medicine, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - Takayuki Tsuji
- First Department of Medicine, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - Soichiro Nagata
- First Department of Medicine, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - Naoko Tsuji
- First Department of Medicine, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - Tomoyuki Fujikura
- First Department of Medicine, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - Naro Ohashi
- First Department of Medicine, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - Akihiko Kato
- Division of Blood Purification, Hamamatsu University School of Medicine Hospital, Hamamatsu, Shizuoka, Japan
| | - Hiroaki Miyajima
- First Department of Medicine, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - Hideo Yasuda
- First Department of Medicine, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| |
Collapse
|
35
|
Li J, Pan X, Yang J, Jia L, Wu C, Liu H, Ren Z, Pan LL, Sun J. Enteral virus depletion modulates experimental acute pancreatitis via toll-like receptor 9 signaling. Biochem Pharmacol 2019; 171:113710. [PMID: 31726046 DOI: 10.1016/j.bcp.2019.113710] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Accepted: 11/07/2019] [Indexed: 02/06/2023]
Abstract
Enteric viruses that inhabit the intestine have profound effects on innate and adaptive immunity of the gut and thus distant organs. Acute pancreatitis (AP) is a common abdominal inflammatory disease, in which gut bacteria play an indispensable part, particularly in the severe form with local and systemic complications. So far, little is known about the role of enteric viruses in the pathophysiology of AP. In this study, we evaluated the effect of enteric virus depletion by oral anti-viral cocktail (AVC) on caerulein (Cae)-hyperstimulation induced experimental AP and underlying mechanisms. We found that AVC treatment alleviated experimental AP, accompanied by suppressed innate immune cell infiltration and TLR9 expression and signaling in pancreas and intestine. Furthermore, AVC administration reduced AP-induced interleukin-6 (IL-6) production, IL-6-activated signal transducers and activators of transcription 3 (STAT3) signaling. Concordantly, expression of AP-induced STAT3-responsive chemokines, especially monocyte chemotactic protein-1 (MCP-1) and chemokine (C-X-C motif) ligand 1 (CXCL1) was reduced, thereby contributing to modulated pancreatic immune milieu. Treatment of mice with a toll-like receptor 9 (TLR9) agonist abolished the protective effect of AVC by activation of IL6/STAT3 signaling and downstream chemokine production. Conversely, treatment of mice with TLR9 antagonists, mimicking AVC, exerted protective effects against AP. Collectively, these results suggest that depletion of enteric viruses protects mice from experimental AP through inhibiting TLR9 signaling. Our study therefore implies a previously unrecognized role of enteric viruses in AP.
Collapse
Affiliation(s)
- Jiahong Li
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, PR China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, PR China
| | - Xiaohua Pan
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, PR China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, PR China
| | - Jun Yang
- Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, PR China
| | - Lingling Jia
- Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, PR China
| | - Chengfei Wu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, PR China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, PR China
| | - He Liu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, PR China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, PR China
| | - Zhengnan Ren
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, PR China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, PR China
| | - Li-Long Pan
- Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, PR China.
| | - Jia Sun
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, PR China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, PR China.
| |
Collapse
|
36
|
Rabadi MM, Han SJ, Kim M, D'Agati V, Lee HT. Peptidyl arginine deiminase-4 exacerbates ischemic AKI by finding NEMO. Am J Physiol Renal Physiol 2019; 316:F1180-F1190. [PMID: 30943066 DOI: 10.1152/ajprenal.00089.2019] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Peptidyl arginine deiminase-4 (PAD4) catalyzes the conversion of peptidylarginine residues to peptidylcitrulline. We have previously shown that kidney ischemia-reperfusion (I/R) injury increases renal proximal tubular PAD4 expression and activity. Furthermore, kidney PAD4 plays a critical role in ischemic acute kidney injury (AKI) by promoting renal tubular inflammation, neutrophil infiltration, and NF-κB activation. However, the mechanisms of PAD4-mediated renal tubular inflammation and NF-κB activation after I/R remain unclear. Here, we show that recombinant PAD4 preferentially citrullinates recombinant IKKγ [also called NF-κB essential modulator (NEMO)] over recombinant IKKα or IKKβ. Consistent with this finding, PAD4 citrullinated renal proximal tubular cell IKKγ and promoted NF-κB activation via IκBα phosphorylation in vitro. NEMO inhibition with a selective NEMO-binding peptide attenuated PAD4-mediated proinflammatory cytokine mRNA induction in HK-2 cells. Moreover, NEMO inhibition did not affect proximal tubular cell survival, proliferation, or apoptosis, unlike global NF-κB inhibition. In vivo, NEMO-binding peptide treatment protected against ischemic AKI. Finally, NEMO-binding peptide attenuated recombinant PAD4-mediated exacerbation of ischemic AKI, renal tubular inflammation, and apoptosis. Taken together, our results show that PAD4 exacerbates ischemic AKI and inflammation by promoting renal tubular NF-κB activity and inflammation via NEMO citrullination. Targeting NEMO activation may serve as a potential therapy for this devastating clinical problem.
Collapse
Affiliation(s)
- May M Rabadi
- Department of Anesthesiology, College of Physicians and Surgeons of Columbia University , New York, New York
| | - Sang Jun Han
- Department of Anesthesiology, College of Physicians and Surgeons of Columbia University , New York, New York
| | - Mihwa Kim
- Department of Anesthesiology, College of Physicians and Surgeons of Columbia University , New York, New York
| | - Vivette D'Agati
- Department of Pathology, College of Physicians and Surgeons of Columbia University , New York, New York
| | - H Thomas Lee
- Department of Anesthesiology, College of Physicians and Surgeons of Columbia University , New York, New York
| |
Collapse
|
37
|
Han SJ, Li H, Kim M, D’Agati V, Lee HT. Intestinal Toll-like receptor 9 deficiency leads to Paneth cell hyperplasia and exacerbates kidney, intestine, and liver injury after ischemia/reperfusion injury. Kidney Int 2019; 95:859-879. [DOI: 10.1016/j.kint.2018.10.035] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 10/09/2018] [Accepted: 10/24/2018] [Indexed: 01/02/2023]
|
38
|
Wakasaki R, Matsushita K, Golgotiu K, Anderson S, Eiwaz MB, Orton DJ, Han SJ, Lee HT, Smith RD, Rodland KD, Piehowski PD, Hutchens MP. Glomerular filtrate proteins in acute cardiorenal syndrome. JCI Insight 2019; 4:122130. [PMID: 30829647 DOI: 10.1172/jci.insight.122130] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Accepted: 01/14/2019] [Indexed: 12/12/2022] Open
Abstract
Acute cardiorenal syndrome (CRS-1) is a morbid complication of acute cardiovascular disease. Heart-to-kidney signals transmitted by "cardiorenal connectors" have been postulated, but investigation into CRS-1 has been limited by technical limitations and a paucity of models. To address these limitations, we developed a translational model of CRS-1, cardiac arrest and cardiopulmonary resuscitation (CA/CPR), and now report findings from nanoscale mass spectrometry proteomic exploration of glomerular filtrate 2 hours after CA/CPR or sham procedure. Filtrate acquisition was confirmed by imaging, molecular weight and charge distribution, and exclusion of protein specific to surrounding cells. Filtration of proteins specific to the heart was detected following CA/CPR and confirmed with mass spectrometry performed using urine collections from mice with deficient tubular endocytosis. Cardiac LIM protein was a CA/CPR-specific filtrate component. Cardiac arrest induced plasma release of cardiac LIM protein in mice and critically ill human cardiac arrest survivors, and administration of recombinant cardiac LIM protein to mice altered renal function. These findings demonstrate that glomerular filtrate is accessible to nanoscale proteomics and elucidate the population of proteins filtered 2 hours after CA/CPR. The identification of cardiac-specific proteins in renal filtrate suggests a novel signaling mechanism in CRS-1. We expect these findings to advance understanding of CRS-1.
Collapse
Affiliation(s)
- Rumie Wakasaki
- Anesthesiology & Perioperative Medicine, Oregon Health & Science University, Portland, Oregon, USA
| | - Katsuyuki Matsushita
- Anesthesiology & Perioperative Medicine, Oregon Health & Science University, Portland, Oregon, USA
| | - Kirsti Golgotiu
- Anesthesiology & Perioperative Medicine, Oregon Health & Science University, Portland, Oregon, USA
| | - Sharon Anderson
- Operative Care Division and Research and Development Division, Portland Veterans Affairs Medical Center, Portland, Oregon, USA.,Division of Nephrology and Hypertension, Oregon Health & Science University, Portland, Oregon, USA
| | - Mahaba B Eiwaz
- Anesthesiology & Perioperative Medicine, Oregon Health & Science University, Portland, Oregon, USA
| | - Daniel J Orton
- Pacific Northwest National Laboratory, Environmental and Biological Services Division, Richland, Washington, USA
| | - Sang Jun Han
- Department of Anesthesiology, College of Physicians and Surgeons of Columbia University, New York, New York, USA
| | - H Thomas Lee
- Department of Anesthesiology, College of Physicians and Surgeons of Columbia University, New York, New York, USA
| | - Richard D Smith
- Pacific Northwest National Laboratory, Environmental and Biological Services Division, Richland, Washington, USA
| | - Karin D Rodland
- Pacific Northwest National Laboratory, Environmental and Biological Services Division, Richland, Washington, USA
| | - Paul D Piehowski
- Pacific Northwest National Laboratory, Environmental and Biological Services Division, Richland, Washington, USA
| | - Michael P Hutchens
- Anesthesiology & Perioperative Medicine, Oregon Health & Science University, Portland, Oregon, USA.,Operative Care Division and Research and Development Division, Portland Veterans Affairs Medical Center, Portland, Oregon, USA
| |
Collapse
|