1
|
Wang XX, Myakala K, Libby AE, Krawczyk E, Panov J, Jones BA, Bhasin K, Shults N, Qi Y, Krausz KW, Zerfas PM, Takahashi S, Daneshpajouhnejad P, Titievsky A, Taranenko E, Billon C, Chatterjee A, Elgendy B, Walker JK, Albanese C, Kopp JB, Rosenberg AZ, Gonzalez FJ, Guha U, Brodsky L, Burris TP, Levi M. Estrogen-Related Receptor Agonism Reverses Mitochondrial Dysfunction and Inflammation in the Aging Kidney. Am J Pathol 2023; 193:1969-1987. [PMID: 37717940 PMCID: PMC10734281 DOI: 10.1016/j.ajpath.2023.07.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 06/21/2023] [Accepted: 07/19/2023] [Indexed: 09/19/2023]
Abstract
A gradual decline in renal function occurs even in healthy aging individuals. In addition to aging, per se, concurrent metabolic syndrome and hypertension, which are common in the aging population, can induce mitochondrial dysfunction and inflammation, which collectively contribute to age-related kidney dysfunction and disease. This study examined the role of the nuclear hormone receptors, the estrogen-related receptors (ERRs), in regulation of age-related mitochondrial dysfunction and inflammation. The ERRs were decreased in both aging human and mouse kidneys and were preserved in aging mice with lifelong caloric restriction (CR). A pan-ERR agonist, SLU-PP-332, was used to treat 21-month-old mice for 8 weeks. In addition, 21-month-old mice were treated with a stimulator of interferon genes (STING) inhibitor, C-176, for 3 weeks. Remarkably, similar to CR, an 8-week treatment with a pan-ERR agonist reversed the age-related increases in albuminuria, podocyte loss, mitochondrial dysfunction, and inflammatory cytokines, via the cyclic GMP-AMP synthase-STING and STAT3 signaling pathways. A 3-week treatment of 21-month-old mice with a STING inhibitor reversed the increases in inflammatory cytokines and the senescence marker, p21/cyclin dependent kinase inhibitor 1A (Cdkn1a), but also unexpectedly reversed the age-related decreases in PPARG coactivator (PGC)-1α, ERRα, mitochondrial complexes, and medium chain acyl coenzyme A dehydrogenase (MCAD) expression. These studies identified ERRs as CR mimetics and as important modulators of age-related mitochondrial dysfunction and inflammation. These findings highlight novel druggable pathways that can be further evaluated to prevent progression of age-related kidney disease.
Collapse
Affiliation(s)
- Xiaoxin X Wang
- Department of Biochemistry and Molecular and Cellular Biology, Georgetown University Medical Center, Washington, District of Columbia.
| | - Komuraiah Myakala
- Department of Biochemistry and Molecular and Cellular Biology, Georgetown University Medical Center, Washington, District of Columbia
| | - Andrew E Libby
- Department of Biochemistry and Molecular and Cellular Biology, Georgetown University Medical Center, Washington, District of Columbia
| | - Ewa Krawczyk
- Department of Pathology, Center for Cell Reprogramming, Georgetown University, Washington, District of Columbia
| | - Julia Panov
- Tauber Bioinformatics Research Center, University of Haifa, Haifa, Israel; Sagol Department of Neurobiology, University of Haifa, Haifa, Israel
| | - Bryce A Jones
- Department of Pharmacology and Physiology, Georgetown University Medical Center, Washington, District of Columbia
| | - Kanchan Bhasin
- Department of Biochemistry and Molecular and Cellular Biology, Georgetown University Medical Center, Washington, District of Columbia
| | - Nataliia Shults
- Department of Biochemistry and Molecular and Cellular Biology, Georgetown University Medical Center, Washington, District of Columbia
| | - Yue Qi
- Thoracic and GI Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Kristopher W Krausz
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Patricia M Zerfas
- Office of Research Services, Office of the Director, National Institutes of Health, Bethesda, Maryland
| | - Shogo Takahashi
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Parnaz Daneshpajouhnejad
- Renal Pathology Service, Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Avi Titievsky
- Tauber Bioinformatics Research Center, University of Haifa, Haifa, Israel
| | | | - Cyrielle Billon
- Center for Clinical Pharmacology, Washington University School of Medicine and University of Health Sciences and Pharmacy, St. Louis, Missouri
| | - Arindam Chatterjee
- Department of Pharmacology and Physiology, Saint Louis University School of Medicine, St. Louis, Missouri
| | - Bahaa Elgendy
- Center for Clinical Pharmacology, Washington University School of Medicine and University of Health Sciences and Pharmacy, St. Louis, Missouri
| | - John K Walker
- Department of Pharmacology and Physiology, Saint Louis University School of Medicine, St. Louis, Missouri
| | - Chris Albanese
- Department of Oncology and Center for Translational Imaging, Georgetown University Medical Center, Washington, District of Columbia
| | - Jeffrey B Kopp
- Kidney Diseases Section, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland
| | - Avi Z Rosenberg
- Renal Pathology Service, Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Frank J Gonzalez
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Udayan Guha
- Thoracic and GI Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Leonid Brodsky
- Tauber Bioinformatics Research Center, University of Haifa, Haifa, Israel
| | - Thomas P Burris
- Center for Clinical Pharmacology, Washington University School of Medicine and University of Health Sciences and Pharmacy, St. Louis, Missouri
| | - Moshe Levi
- Department of Biochemistry and Molecular and Cellular Biology, Georgetown University Medical Center, Washington, District of Columbia.
| |
Collapse
|
2
|
Törnquist K, Vainio PJ, Björklund S, Titievsky A, Dugué B, Tuominen RK. Hydrogen peroxide attenuates store-operated calcium entry and enhances calcium extrusion in thyroid FRTL-5 cells. Biochem J 2000; 351:47-56. [PMID: 10998346 PMCID: PMC1221334 DOI: 10.1042/0264-6021:3510047] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Redox modulation participates in the regulation of intracellular free calcium concentration ([Ca(2+)](i)) in several cell types. In thyroid cells, including FRTL-5 cells, changes in [Ca(2+)](i) regulate several important functions, including the production of H(2)O(2) (hydrogen peroxide). As H(2)O(2) is of crucial importance for the production of thyroid hormones, we investigated the effects of H(2)O(2) on [Ca(2+)](i) in thyroid FRTL-5 cells. H(2)O(2) itself did not modulate basal [Ca(2+)](i). However, H(2)O(2) attenuated store-operated calcium entry evoked by thapsigargin, both in a sodium-containing buffer and in a sodium-free buffer. The effect of H(2)O(2) was abrogated by the reducing agent beta-mercaptoethanol. H(2)O(2) also attenuated the thapsigargin-evoked entry of barium and manganese. The effect of H(2)O(2) was, at least in part, mediated by activation of protein kinase C (PKC), as H(2)O(2) enhanced the binding of [(3)H]phorbol 12,13-dibutyrate. H(2)O(2) also stimulated the translocation of the isoenzyme PKCepsilon from the cytosolic fraction to the particulate fraction. Furthermore, H(2)O(2) did not attenuate store-operated calcium entry in cells treated with staurosporine or calphostin C, or in cells with down-regulated PKC. H(2)O(2) depolarized the membrane potential in bisoxonol-loaded cells and when patch-clamp in the whole-cell mode was used. The depolarization was attenuated in cells with down-regulated PKC. This depolarization, at least in part, explained the H(2)O(2)-evoked inhibition of calcium entry. In addition, H(2)O(2) enhanced the extrusion of calcium from cells stimulated with thapsigargin and this effect was abolished in cells with down-regulated PKC and after treatment of the cells with the reducing agent beta-mercaptoethanol. In conclusion H(2)O(2) attenuates an increase in [Ca(2+)](i). As H(2)O(2) is produced in thyroid cells in a calcium-dependent manner, our results suggest that H(2)O(2) may participate in the regulation of [Ca(2+)](i) in these cells via a negative-feedback mechanism involving activation of PKC.
Collapse
Affiliation(s)
- K Törnquist
- Department of Biology, Abo Akademi University, BioCity, Artillerigatan 6, 20520 Turku, Finland and Minerva Foundation Institute for Medical Research, 00250 Helsinki, Finland.
| | | | | | | | | | | |
Collapse
|
4
|
Törnquist K, Vainio P, Titievsky A, Dugué B, Tuominen R. Redox modulation of intracellular free calcium concentration in thyroid FRTL-5 cells: evidence for an enhanced extrusion of calcium. Biochem J 1999; 339 ( Pt 3):621-8. [PMID: 10215601 PMCID: PMC1220198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
Redox modulation is involved in the regulation of the intracellular free calcium concentration ([Ca2+]i) in several cell types. In thyroid cells, including thyroid FRTL-5 cells, changes in [Ca2+]i regulate important functions. In the present study we investigated the effects of the oxidizing compounds thimerosal and t-butyl hydroperoxide on [Ca2+]i in thyroid FRTL-5 cells. Thimerosal mobilized sequestered calcium, and evoked modest store-dependent calcium entry. Both compounds potently attenuated the increase in [Ca2+]i when store-operated calcium entry was evoked with thapsigargin. The entry of barium was not attenuated. Experiments performed with high extracellular pH, in sodium-free buffer and in the presence of vanadate suggested that thimerosal decreased [Ca2+]i by activating a calcium extrusion mechanism, probably a plasma membrane Ca2+-ATPase. All the observed effects were abrogated by the reducing agent beta-mercaptoethanol. The mechanism of action was apparently mediated via activation of protein kinase C, as thimerosal potently stimulated binding of [3H]phorbol 12, 13-dibutyrate, and was without effect on store-operated calcium entry in cells treated with staurosporine or in cells with down-regulated protein kinase C. Thimerosal did not depolarize the membrane potential, as evaluated using patch-clamp in the whole-cell mode. In immunoprecipitates obtained with an antibody against plasma membrane Ca2+-ATPase, we observed several phosphorylated bands in cells stimulated with thimerosal. In conclusion, we have shown that thimerosal attenuates an increase in [Ca2+]i, probably by activating a plasma membrane Ca2+-ATPase.
Collapse
Affiliation(s)
- K Törnquist
- Department of Biology, Abo Akademi University, BioCity, Artillerigatan 6, 20520 Turku, Finland.
| | | | | | | | | |
Collapse
|
6
|
Abstract
In the present study we investigated the mechanism of inhibitory action of sphingosine (SP) on voltage-activated calcium channels (VOCCs) in pituitary GH4C1 cells. Using the patch-clamp technique in the whole-cell mode, we show that SP inhibits Ba2+ currents (IBa) when 0.1 mM BAPTA is included in the patch pipette. However, when the BAPTA concentration was raised to 1-10 mM, SP was without a significant effect. The effect of SP was apparently not mediated via a kinase, as it was not inhibited by staurosporine. By using the double-pulse protocol (to release possible functional inhibition of the VOCCs by G proteins), we observed that G proteins apparently evoked very little functional inhibition of the VOCCs. Furthermore, including GDPbetaS (guanyl-5'-yl thiophosphate) in the patch pipette did not alter the inhibitory effect of SP on the Ba2+ current, suggesting that SP did not modulate the VOCCs via a G protein-dependent pathway. Single-channel experiments with SP in the pipette, and experiments with excised outside-out patches, suggested that SP directly inhibited VOCCs. The main mechanism of action was a dose-dependent prolongation of the closed time of the channels. The results thus show that SP is a potent inhibitor of VOCCs in GH4C1 cells, and that calcium may be a cofactor in this inhibition.
Collapse
Affiliation(s)
- A Titievsky
- Department of Biosciences, Division of Animal Physiology, University of Helsinki, Helsinki, and the Department of Biology, Abo Akademi University, Turku, Finland
| | | | | | | | | |
Collapse
|
7
|
Karhapää L, Titievsky A, Kaila K, Törnquist K. Redox modulation of calcium entry and release of intracellular calcium by thimerosal in GH4C1 pituitary cells. Cell Calcium 1996; 20:447-57. [PMID: 8985589 DOI: 10.1016/s0143-4160(96)90086-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
In the present work we have investigated the actions of the oxidizing sulfhydryl reagent thimerosal on different mechanisms which regulate intracellular free Ca2+ concentration ([Ca2+]i) in GH4C1 pituitary cells. In intact Fura-2 loaded cells, low concentrations of thimerosal potentiated the spike phase of the TRH-induced (thyrotropin-releasing hormone) rise in [Ca2+]i, whereas high thimerosal concentrations inhibited it. The effect of thimerosal on the plateau phase was always inhibitory. The effect of thimerosal on the IP3-induced calcium release (IICR) was studied in permeabilized cells using the Ca2+ indicator Fluo-3. A low concentration of thimerosal (10 microM) stimulated IICR: the Ca2+ release induced by 300 nM inositol-1,4,5-trisphosphate (IP3) was enhanced in cells treated with thimerosal for 1 or 6 min (67 +/- 11 nM and 34 +/- 5 nM, respectively) as compared to control cells (17 +/- 2 nM). On the other hand, a high concentration of thimerosal (100 microM) inhibited IICR: when IP3 (10 microM) was added after a 5 min preincubation with thimerosal, the IP3-induced rise in [Ca2+]i (46 +/- 14 nM) was 57% smaller as compared with that seen in control cells (106 +/- 10 nM). The effect of thimerosal on the voltage-operated Ca2+ channels (VOCCs) was studied by depolarizing intact Fura-2 loaded cells by addition of 20 mM K+ to the cuvette. The depolarization-evoked increase in [Ca2+]i was inhibited in a dose-dependent manner by thimerosal. Direct evidence for an inhibitory effect of thimerosal on VOCCs was obtained by using the whole-cell configuration of the patch-clamp technique: thimerosal (100 microM) potently inhibited the Ba2+ currents through VOCCs. In addition, our results indicated that thimerosal inhibited the caffeine-induced increase in [Ca2+]i, and activated a capacitative Ca2+ entry pathway. The actions of thimerosal were apparently due to its oxidizing activity because the effects were mostly reversed by the thiol-reducing agent dithiothreitol (DTT). We conclude that, in GH4C1 pituitary cells, the mobilization of intracellular calcium and the different Ca2+ entry pathways are sensitive to redox modulation.
Collapse
Affiliation(s)
- L Karhapää
- Department of Biosciences, University of Helsinki, Finland
| | | | | | | |
Collapse
|