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Wu Y, Shi H, Xu Y, Shu G, Xiao Y, Hong G, Xu S. Targeted Restoration of GPX3 Attenuates Renal Ischemia/Reperfusion Injury by Balancing Selenoprotein Expression and Inhibiting ROS-mediated Mitochondrial Apoptosis. Transplantation 2024:00007890-990000000-00763. [PMID: 38771110 DOI: 10.1097/tp.0000000000005068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Abstract
BACKGROUND Renal ischemia/reperfusion (IR) injury is the leading cause of acute kidney injury in both autologous and transplanted kidneys. Low-level glutathione peroxidase 3 (GPX3) is associated with renal IR injury. The exact mechanism of targeted GPX3 restoration in renal IR injury has yet to be determined. METHODS The distribution of GPX3 in different tissues and organs of the body was investigated. The level of GPX3 in renal IR injury was assessed. To confirm the action of GPX3 and its mechanisms, IR models were used to introduce adeno-associated virus 9 containing GPX3, as well as hypoxia/reoxygenation-exposed normal rat kidney cells that consistently overexpressed GPX3. Reverse molecular docking was used to confirm whether GPX3 was a target of ebselen. RESULTS GPX3 is abundant in the kidneys and decreases in expression during renal IR injury. GPX3 overexpression reduced renal IR injury and protected tubular epithelial cells from apoptosis. Proteomics analysis revealed a strong link between GPX3 and mitochondrial signaling, cellular redox state, and different expression patterns of selenoproteins. GPX3 inhibited reactive oxygen species-induced mitochondrial apoptosis and balanced the disordered expression of selenoproteins. GPX3 was identified as a stable selenoprotein that interacts with ebselen. Ebselen enhanced the level of GPX3 and reduced IR-induced mitochondrial damage and renal dysfunction. CONCLUSIONS Targeted restoration of GPX3 attenuates renal IR injury by balancing selenoprotein expression and inhibiting reactive oxygen species-mediated mitochondrial apoptosis, indicating that GPX3 could be a potential therapeutic target for renal IR injury.
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Affiliation(s)
- Yikun Wu
- Guizhou University Medical College, Guiyang, China
- Department of Urology, Guizhou Provincial People's Hospital, Guiyang, China
| | - Hua Shi
- Department of Urology, Tongren City People's Hospital, Tongren, China
| | - Yuangao Xu
- Clinic for Kidney and Hypertension Diseases, Hannover Medical School, Hannover, Germany
| | - Guofeng Shu
- Department of Urology, Guizhou Provincial People's Hospital, Guiyang, China
| | - Yu Xiao
- Department of Urology, Guizhou Provincial People's Hospital, Guiyang, China
| | - Guangyi Hong
- Department of Urology, Guizhou Provincial People's Hospital, Guiyang, China
| | - Shuxiong Xu
- Department of Urology, Guizhou Provincial People's Hospital, Guiyang, China
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Hebert JF, Funahashi Y, Emathinger JM, Nickerson MN, Groat T, Andeen NK, Gurley SB, Hutchens MP. Parental recovered acute kidney injury causes prenatal renal dysfunction and fetal growth restriction with sexually dimorphic implications for adult offspring. Front Physiol 2024; 15:1357932. [PMID: 38681142 PMCID: PMC11045984 DOI: 10.3389/fphys.2024.1357932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Accepted: 03/20/2024] [Indexed: 05/01/2024] Open
Abstract
Introduction: Acute kidney injury (AKI) is rapidly increasing in global incidence and a healthcare burden. Prior maternal AKI diagnosis correlates with later pregnancy complications. As pregnancy influences developmental programming, we hypothesized that recovered parental AKI results in poor pregnancy outcomes, impaired fetal growth, and adult offspring disease. Methods: Using a well-characterized model of rhabdomyolysis-induced acute kidney injury (RIAKI), a form of AKI commonly observed in young people, we confirmed functional renal recovery by assessing glomerular filtration rate (GFR) 2 weeks following RIAKI. We bred sham and recovered RIAKI sires and dams in timed, matched matings for gestational day (GD) 16.5 and offspring (birth-12 weeks, 6 months) study. Results: Despite a normal GFR pre-pregnancy, recovered RIAKI dams at GD16.5 had impaired renal function, resulting in reduced fetoplacental ratios and offspring survival. Pregnant RIAKI dams also had albuminuria and less renal megalin in the proximal tubule brush border than shams, with renal subcapsular fibrosis and higher diastolic blood pressure. Growth-restricted offspring had a reduced GFR as older adults, with evidence of metabolic inefficiency in male offspring; this correlated with reduced renal AngII levels in female offspring from recovered RIAKI pairings. However, the blood pressures of 6-month-old offspring were unaffected by parental RIAKI. Conclusions: Our mouse model demonstrated a causal relationship among RIAKI, gestational risk, and developmental programming of the adult-onset offspring GFR and metabolic dysregulation despite parental recovery.
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Affiliation(s)
- Jessica F. Hebert
- Department of Anesthesiology and Perioperative Medicine, Oregon Health and Science University, Portland, OR, United States
| | - Yoshio Funahashi
- Department of Anesthesiology and Perioperative Medicine, Oregon Health and Science University, Portland, OR, United States
| | | | - Megan N. Nickerson
- Operative Care Division, Portland Veterans Administration Medical Center, Portland, OR, United States
| | - Tahnee Groat
- Department of Anesthesiology and Perioperative Medicine, Oregon Health and Science University, Portland, OR, United States
| | - Nicole K. Andeen
- Department of Pathology, Oregon Health and Science University, Portland, OR, United States
| | - Susan B. Gurley
- Division of Nephrology and Hypertension, Department of Medicine, Keck School Medicine of University of Southern California, Los Angeles, CA, United States
| | - Michael P. Hutchens
- Department of Anesthesiology and Perioperative Medicine, Oregon Health and Science University, Portland, OR, United States
- Operative Care Division, Portland Veterans Administration Medical Center, Portland, OR, United States
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Mohamed R, Sullivan JC. Sustained activation of 12/15 lipoxygenase (12/15 LOX) contributes to impaired renal recovery post ischemic injury in male SHR compared to females. Mol Med 2023; 29:163. [PMID: 38049738 PMCID: PMC10696802 DOI: 10.1186/s10020-023-00762-y] [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: 05/31/2023] [Accepted: 11/19/2023] [Indexed: 12/06/2023] Open
Abstract
BACKGROUND Acute kidney injury (AKI) due to ischemia-reperfusion (IR) is a serious and frequent complication in clinical settings, and mortality rates remain high. There are well established sex differences in renal IR, with males exhibiting greater injury following an ischemic insult compared to females. We recently reported that males have impaired renal recovery from ischemic injury vs. females. However, the mechanisms mediating sex differences in renal recovery from IR injury remain poorly understood. Elevated 12/15 lipoxygenase (LOX) activity has been reported to contribute to the progression of numerous kidney diseases. The goal of the current study was to test the hypothesis that enhanced activation of 12/15 LOX contributes to impaired recovery post-IR in males vs. females. METHODS 13-week-old male and female spontaneously hypertensive rats (SHR) were randomized to sham or 30-minute warm bilateral IR surgery. Additional male and female SHR were randomized to treatment with vehicle or the specific 12/15 LOX inhibitor ML355 1 h prior to sham/IR surgery, and every other day following up to 7-days post-IR. Blood was collected from all rats 1-and 7-days post-IR. Kidneys were harvested 7-days post-IR and processed for biochemical, histological, and Western blot analysis. 12/15 LOX metabolites 12 and 15 HETE were measured in kidney samples by liquid chromatography-mass spectrometry (LC/MS). RESULTS Male SHR exhibited delayed recovery of renal function post-IR vs. male sham and female IR rats. Delayed recovery in males was associated with activation of renal 12/15 LOX, increased renal 12-HETE, enhanced endoplasmic reticulum (ER) stress, lipid peroxidation, renal cell death and inflammation compared to females 7-days post-IR. Treatment of male SHR with ML355 lowered levels of 12-HETE and resulted in reduced renal lipid peroxidation, ER stress, tubular cell death and inflammation 7-days post-IR with enhanced recovery of renal function compared to vehicle-treated IR male rats. ML355 treatment did not alter IR-induced increases in plasma creatinine in females, however, tubular injury and cell death were attenuated in ML355 treated females compared to vehicle-treated rats 7 days post-IR. CONCLUSION Our data demonstrate that sustained activation 12/15 LOX contributes to impaired renal recovery post ischemic injury in male and female SHR, although males are more susceptible on this mechanism than females.
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Affiliation(s)
- Riyaz Mohamed
- Department of Physiology, Medical College of Georgia at Augusta University, Augusta, Georgia, 30912, United States.
| | - Jennifer C Sullivan
- Department of Physiology, Medical College of Georgia at Augusta University, Augusta, Georgia, 30912, United States
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Buncha V, Cherezova A, Alexander S, Baranovskaya I, Coleman KA, Cherian-Shaw M, Brands MW, Sullivan JC, O'Connor PM, Mamenko M. Aldosterone Antagonism Is More Effective at Reducing Blood Pressure and Excessive Renal ENaC Activity in AngII-Infused Female Rats Than in Males. Hypertension 2023; 80:2196-2208. [PMID: 37593894 PMCID: PMC10528186 DOI: 10.1161/hypertensionaha.123.21287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 08/03/2023] [Indexed: 08/19/2023]
Abstract
BACKGROUND AngII (angiotensin II)-dependent hypertension causes comparable elevations of blood pressure (BP), aldosterone levels, and renal ENaC (epithelial Na+ channel) activity in male and female rodents. Mineralocorticoid receptor (MR) antagonism has a limited antihypertensive effect associated with insufficient suppression of renal ENaC in male rodents with AngII-hypertension. While MR blockade effectively reduces BP in female mice with salt-sensitive and leptin-induced hypertension, MR antagonism has not been studied in female rodents with AngII-hypertension. We hypothesize that overstimulation of renal MR signaling drives redundant ENaC-mediated Na+ reabsorption and BP increase in female rats with AngII-hypertension. METHODS We employ a combination of physiological, pharmacological, biochemical, and biophysical approaches to compare the effect of MR inhibitors on BP and ENaC activity in AngII-infused male and female Sprague Dawley rats. RESULTS MR blockade markedly attenuates AngII-hypertension in female rats but has only a marginal effect in males. Spironolactone increases urinary sodium excretion and urinary sodium-to-potassium ratio in AngII-infused female, but not male, rats. The expression of renal MR and HSD11β2 (11β-hydroxysteroid dehydrogenase type 2) that determines the availability of MR to aldosterone is significantly higher in AngII-infused female rats than in males. ENaC activity is ≈2× lower in spironolactone-treated AngII-infused female rats than in males. Reduced ENaC activity in AngII-infused female rats on spironolactone correlates with increased interaction with ubiquitin ligase Nedd4-2 (neural precursor cell expressed developmentally down-regulated protein 4-2), targeting ENaC for degradation. CONCLUSIONS MR-ENaC axis is the primary determinant of excessive renal sodium reabsorption and an attractive antihypertensive target in female rats with AngII-hypertension, but not in males.
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Affiliation(s)
- Vadym Buncha
- Department of Physiology, Medical College of Georgia, Augusta University
| | - Alena Cherezova
- Department of Physiology, Medical College of Georgia, Augusta University
| | - Sati Alexander
- Department of Physiology, Medical College of Georgia, Augusta University
| | - Irina Baranovskaya
- Department of Physiology, Medical College of Georgia, Augusta University
| | - Kathleen A Coleman
- Department of Physiology, Medical College of Georgia, Augusta University
| | - Mary Cherian-Shaw
- Department of Physiology, Medical College of Georgia, Augusta University
| | - Michael W Brands
- Department of Physiology, Medical College of Georgia, Augusta University
| | | | - Paul M O'Connor
- Department of Physiology, Medical College of Georgia, Augusta University
| | - Mykola Mamenko
- Department of Physiology, Medical College of Georgia, Augusta University
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Hebert JF, Funahashi Y, Hutchens MP. Harm! foul! How acute kidney injury SHReDDs patient futures. Curr Opin Nephrol Hypertens 2023; 32:165-171. [PMID: 36683541 PMCID: PMC10079264 DOI: 10.1097/mnh.0000000000000864] [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] [Indexed: 01/24/2023]
Abstract
PURPOSE OF REVIEW Transition from acute kidney injury (AKI) to chronic kidney disease (CKD) is increasingly accepted. Less well recognized, but supported by very similar data, is development of disease of other organ systems after AKI. Awareness of other-organ sequelae of AKI may inform efforts to improve the care of patients after AKI. RECENT FINDINGS Stroke, hypertension, reproductive risk, dementia, and death (SHReDD) are sequelae, which occur with increased risk relative to that of non-AKI within 6 months-3 years after AKI diagnosis, and which are supported by preclinical/mechanistic study. Adjusted hazard ratios for these sequelae are strikingly similar to that of AKI-CKD, ranging from 1.2 to 3.0. Mechanistic studies suggest kidney-centric mechanisms including sodium regulation, volume status regulation, and the renin-angiotensin system are drivers of long-term, extra-renal, change. SUMMARY Further clinical characterization and mechanistic insight is necessary, and may have considerable translational impact. Programs which screen or follow post-AKI patients may increase clinical utility if focus is expanded to include the SHReDD complications.
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Affiliation(s)
- Jessica F Hebert
- Department of Anesthesiology & Perioperative Medicine, Oregon Health and Science University
| | - Yoshio Funahashi
- Department of Anesthesiology & Perioperative Medicine, Oregon Health and Science University
| | - Michael P Hutchens
- Department of Anesthesiology & Perioperative Medicine, Oregon Health and Science University
- Operative Care Division, Portland Veterans Administration Medical Center, Portland, Oregon, USA
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Wang Y, Pu M, Yan J, Zhang J, Wei H, Yu L, Yan X, He Z. 1,2-Bis(2-aminophenoxy)ethane- N, N, N', N'-tetraacetic Acid Acetoxymethyl Ester Loaded Reactive Oxygen Species Responsive Hyaluronic Acid-Bilirubin Nanoparticles for Acute Kidney Injury Therapy via Alleviating Calcium Overload Mediated Endoplasmic Reticulum Stress. ACS NANO 2023; 17:472-491. [PMID: 36574627 DOI: 10.1021/acsnano.2c08982] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Calcium overload is one of the early determinants of the core cellular events that contribute to the pathogenesis of acute kidney injury (AKI), which include oxidative stress, ATP depletion, calcium overload, and inflammatory response with self-amplifying and interactive feedback loops that ultimately lead to cellular injury and renal failure. Excluding adjuvant therapy, there are currently no approved pharmacotherapies for the treatment of AKI. Using an adipic dihydride linker, we modified the hyaluronic acid polymer chain with a potent antioxidant, bilirubin, to produce an amphiphilic conjugate. Subsequently, we developed a kidney-targeted and reactive oxygen species (ROS)-responsive drug delivery system based on the flash nanocomplexation method to deliver a well-known intracellular calcium chelator, 1,2-bis(2-aminophenoxy)ethane-N,N,N',N'-tetraacetic acid acetoxymethyl ester (BAPTA-AM, BA), with the goal of rescuing renal cell damage via rapidly scavenging of intracellularly overloaded Ca2+. In the ischemia-reperfusion (I/R) induced AKI rat model, a single dose of as-prepared formulation (BA 100 μg·kg-1) 6 h post-reperfusion significantly reduced renal function indicators by more than 60% within 12 h, significantly alleviated tissular pathological changes, ameliorated tissular oxidative damage, significantly inhibited apoptosis of renal tubular cells and the expression of renal tubular marker kidney injury molecule 1, etc., thus greatly reducing the risk of kidney failure. Mechanistically, the treatment with BA-loaded NPs significantly inhibited the activation of the ER stress cascade response (IRE1-TRAF2-JNK, ATF4-CHOP, and ATF6 axis) and regulated the downstream apoptosis-related pathway while also reducing the inflammatory response. The BA-loaded NPs hold great promise as a potential therapy for I/R injury-related diseases.
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Affiliation(s)
- Yanan Wang
- Frontiers Science Center for Deep Ocean Multispheres and Earth Systems, Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao266003, China
- College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao266003, China
| | - Minju Pu
- Frontiers Science Center for Deep Ocean Multispheres and Earth Systems, Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao266003, China
- College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao266003, China
| | - Jiahui Yan
- Frontiers Science Center for Deep Ocean Multispheres and Earth Systems, Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao266003, China
- College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao266003, China
| | - Jingwen Zhang
- Frontiers Science Center for Deep Ocean Multispheres and Earth Systems, Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao266003, China
- College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao266003, China
| | - Huichao Wei
- Frontiers Science Center for Deep Ocean Multispheres and Earth Systems, Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao266003, China
- College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao266003, China
| | - Liangmin Yu
- Frontiers Science Center for Deep Ocean Multispheres and Earth Systems, Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao266003, China
- College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao266003, China
| | - Xuefeng Yan
- Frontiers Science Center for Deep Ocean Multispheres and Earth Systems, Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao266003, China
- College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao266003, China
| | - Zhiyu He
- Frontiers Science Center for Deep Ocean Multispheres and Earth Systems, Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao266003, China
- College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao266003, China
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Shah S, Verma P. Pregnancy-Related Acute Kidney Injury: Do We Know What to Do? Nephron Clin Pract 2022; 147:35-38. [PMID: 35793648 PMCID: PMC9816347 DOI: 10.1159/000525492] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Accepted: 06/06/2022] [Indexed: 01/11/2023] Open
Abstract
Pregnancy-related AKI is a global health problem and is associated with a higher risk of both maternal and fetal morbidity and mortality. Risk factors for developing AKI during pregnancy include older age, history of preeclampsia, and comorbidities like diabetes. Hyperemesis gravidarum is a common cause of AKI during the first trimester, and conditions such as preeclampsia, acute fatty liver disease of pregnancy, thrombotic thrombocytopenic purpura, hemolytic uremic syndrome, and placental abruption are important causes of AKI later in the pregnancy. Diagnosis of pregnancy-related AKI is challenging due to the lack of standard criteria and overlap of clinical manifestations among different etiologies. Timely diagnosis of pregnancy-related AKI is instrumental. Specific treatment includes steroids and immunosuppressive therapy for glomerulonephritis, prompt delivery for severe preeclampsia and acute fatty liver of pregnancy, plasmapheresis for thrombotic thrombocytopenic purpura, and eculizumab for the atypical hemolytic uremic syndrome. Due to the high complexity, management of pregnancy-related AKI should be performed by a multidisciplinary team consisting of a nephrologist, obstetrician, and neonatologist.
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Affiliation(s)
- Silvi Shah
- Division of Nephrology, Department of Internal Medicine, University of Cincinnati College of Medicine, Cincinnati, Ohio, United States
| | - Prasoon Verma
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, United States
- Division of Neonatology, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, United States
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Tangren JS, Thadhani R. Animal Model of Pregnancy after Acute Kidney Injury Mirrors the Human Observations. J Am Soc Nephrol 2021; 32:259-260. [PMID: 33408138 PMCID: PMC8054898 DOI: 10.1681/asn.2020121734] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Affiliation(s)
- Jessica Sheehan Tangren
- Division of Nephrology, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
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