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Jiang D, Yu Z, He Y, Wang F, Gu Y, Davies TGE, Fan Z, Wang X, Wu Y. Key role of the ryanodine receptor I4790K mutation in mediating diamide resistance in Plutella xylostella. Insect Biochem Mol Biol 2024; 168:104107. [PMID: 38492676 DOI: 10.1016/j.ibmb.2024.104107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Revised: 02/27/2024] [Accepted: 03/13/2024] [Indexed: 03/18/2024]
Abstract
The diamondback moth Plutella xylostella, a global insect pest of cruciferous vegetables, has evolved resistance to many classes of insecticides including diamides. Three point mutations (I4790M, I4790K, and G4946E) in the ryanodine receptor of P. xylostella (PxRyR) have been identified to associate with varying levels of resistance. In this study, we generated a knockin strain (I4790K-KI) of P. xylostella, using CRISPR/Cas9 to introduce the I4790K mutation into PxRyR of the susceptible IPP-S strain. Compared to IPP-S, the edited I4790K-KI strain exhibited high levels of resistance to both anthranilic diamides (chlorantraniliprole 1857-fold, cyantraniliprole 1433-fold) and the phthalic acid diamide flubendiamide (>2272-fold). Resistance to chlorantraniliprole in the I4790K-KI strain was inherited in an autosomal and recessive mode, and genetically linked with the I4790K knockin mutation. Computational modeling suggests the I4790K mutation reduces the binding of diamides to PxRyR by disrupting key hydrogen bonding interactions within the binding cavity. The approximate frequencies of the 4790M, 4790K, and 4946E alleles were assessed in ten geographical field populations of P. xylostella collected in China in 2021. The levels of chlorantraniliprole resistance (2.3- to 1444-fold) in these populations were significantly correlated with the frequencies (0.017-0.917) of the 4790K allele, but not with either 4790M (0-0.183) or 4946E (0.017-0.450) alleles. This demonstrates that the PxRyR I4790K mutation is currently the major contributing factor to chlorantraniliprole resistance in P. xylostella field populations within China. Our findings provide in vivo functional evidence for the causality of the I4790K mutation in PxRyR with high levels of diamide resistance in P. xylostella, and suggest that tracking the frequency of the I4790K allele is crucial for optimizing the monitoring and management of diamide resistance in this crop pest.
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Affiliation(s)
- Dong Jiang
- College of Plant Protection, Nanjing Agricultural University, Nanjing, 210095, China.
| | - Zhenwu Yu
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China.
| | - Yingshi He
- College of Plant Protection, Nanjing Agricultural University, Nanjing, 210095, China.
| | - Falong Wang
- College of Plant Protection, Nanjing Agricultural University, Nanjing, 210095, China.
| | - Yucheng Gu
- Syngenta Jealott's Hill International Research Centre, Bracknell, Berkshire, RG42 6EY, UK.
| | - T G Emyr Davies
- Insect Molecular Genomics Group, Protecting Crops and the Environment, Rothamsted Research, Harpenden, Herts, AL5 2JQ, UK.
| | - Zhijin Fan
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China.
| | - Xingliang Wang
- College of Plant Protection, Nanjing Agricultural University, Nanjing, 210095, China.
| | - Yidong Wu
- College of Plant Protection, Nanjing Agricultural University, Nanjing, 210095, China.
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Okabe Y, Murakoshi N, Kurebayashi N, Inoue H, Ito Y, Murayama T, Miyoshi C, Funato H, Ishii K, Xu D, Tajiri K, Qin R, Aonuma K, Murakata Y, Song Z, Wakana S, Yokoyama U, Sakurai T, Aonuma K, Ieda M, Yanagisawa M. An inherited life-threatening arrhythmia model established by screening randomly mutagenized mice. Proc Natl Acad Sci U S A 2024; 121:e2218204121. [PMID: 38621141 DOI: 10.1073/pnas.2218204121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 02/27/2024] [Indexed: 04/17/2024] Open
Abstract
Inherited arrhythmia syndromes (IASs) can cause life-threatening arrhythmias and are responsible for a significant proportion of sudden cardiac deaths (SCDs). Despite progress in the development of devices to prevent SCDs, the precise molecular mechanisms that induce detrimental arrhythmias remain to be fully investigated, and more effective therapies are desirable. In the present study, we screened a large-scale randomly mutagenized mouse library by electrocardiography to establish a disease model of IASs and consequently found one pedigree that exhibited spontaneous ventricular arrhythmias (VAs) followed by SCD within 1 y after birth. Genetic analysis successfully revealed a missense mutation (p.I4093V) of the ryanodine receptor 2 gene to be a cause of the arrhythmia. We found an age-related increase in arrhythmia frequency accompanied by cardiomegaly and decreased ventricular contractility in the Ryr2I4093V/+ mice. Ca2+ signaling analysis and a ryanodine binding assay indicated that the mutant ryanodine receptor 2 had a gain-of-function phenotype and enhanced Ca2+ sensitivity. Using this model, we detected the significant suppression of VA following flecainide or dantrolene treatment. Collectively, we established an inherited life-threatening arrhythmia mouse model from an electrocardiogram-based screen of randomly mutagenized mice. The present IAS model may prove feasible for use in investigating the mechanisms of SCD and assessing therapies.
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Affiliation(s)
- Yuta Okabe
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan
| | - Nobuyuki Murakoshi
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan
| | - Nagomi Kurebayashi
- Department of Cellular and Molecular Pharmacology, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan
| | - Hana Inoue
- Department of Physiology, Tokyo Medical University, Tokyo 160-8402, Japan
| | - Yoko Ito
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan
| | - Takashi Murayama
- Department of Cellular and Molecular Pharmacology, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan
| | - Chika Miyoshi
- International Institute for Integrative Sleep Medicine, University of Tsukuba, Tsukuba 305-8575, Japan
| | - Hiromasa Funato
- International Institute for Integrative Sleep Medicine, University of Tsukuba, Tsukuba 305-8575, Japan
| | - Koichiro Ishii
- Department of Cellular and Molecular Pharmacology, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan
| | - Dongzhu Xu
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan
| | - Kazuko Tajiri
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan
| | - Rujie Qin
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan
| | - Kazuhiro Aonuma
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan
| | - Yoshiko Murakata
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan
| | - Zonghu Song
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan
| | - Shigeharu Wakana
- Technology and Development Team for Mouse Phenotype Analysis, RIKEN BioResource Center, Tsukuba 305-0074, Japan
- Department of Animal Experimentation, Foundation for Biomedical Research and Innovation at Kobe, Kobe 650-0047, Japan
| | - Utako Yokoyama
- Department of Physiology, Tokyo Medical University, Tokyo 160-8402, Japan
| | - Takashi Sakurai
- Department of Cellular and Molecular Pharmacology, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan
| | - Kazutaka Aonuma
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan
| | - Masaki Ieda
- Department of Cardiology, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Masashi Yanagisawa
- International Institute for Integrative Sleep Medicine, University of Tsukuba, Tsukuba 305-8575, Japan
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Ren J, Ji X, Zhang J, Yu Z, Wang X, Xiong L, Yang N, Tang L, Li Z, Fan Z. Discovery of Trisubstituted N-Phenylpyrazole Containing Diamides with Improved Insecticidal Activity. J Agric Food Chem 2024; 72:8072-8080. [PMID: 38547359 DOI: 10.1021/acs.jafc.3c08759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2024]
Abstract
To increase the structural diversity of insecticides and meet the needs of effective integrated insect management, the structure of chlorantraniliprole was modified based on a previously established three-dimensional quantitative structure-activity relationship (3D-QSAR) model. The pyridinyl moiety in the structure of chlorantraniliprole was replaced with a 4-fluorophenyl group. Further modifications of this 4-fluorophenyl group by introducing a halogen atom at position 2 and an electron-withdrawing group (e.g., iodine, cyano, and trifluoromethyl) at position 5 led to 34 compounds with good insecticidal efficacy against Mythimna separata, Plutella xylostella, and Spodoptera frugiperda. Among them, compound IV f against M. separata showed potency comparable to that of chlorantraniliprole. IV p against P. xylostella displayed a 4.5 times higher potency than chlorantraniliprole. In addition, IV d and chlorantraniliprole exhibited comparable potencies against S. frugiperda. Transcriptome analysis showed that the molecular target of compound IV f is the ryanodine receptor. Molecular docking was further performed to verify the mode of action and insecticidal activity against resistant P. xylostella.
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Affiliation(s)
- Jinzhou Ren
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
- Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
- Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Xia Ji
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
- Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
- Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Jin Zhang
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
- Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
- Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Zhenwu Yu
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
- Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
- Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Xinyuan Wang
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
- Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
- Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Lixia Xiong
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
- Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
- Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Na Yang
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
- Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
- Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Liangfu Tang
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
- Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
- Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Zhengming Li
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
- Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
- Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Zhijin Fan
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
- Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
- Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
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Olivera JF, Pizarro G. Quantal Properties of Voltage-Dependent Ca 2+ Release in Frog Skeletal Muscle Persist After Reduction of [Ca 2+] in the Sarcoplasmic Reticulum. J Membr Biol 2024; 257:37-50. [PMID: 38460011 DOI: 10.1007/s00232-024-00309-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 02/09/2024] [Indexed: 03/11/2024]
Abstract
In skeletal muscle, the Ca2+ release flux elicited by a voltage clamp pulse rises to an early peak that inactivates rapidly to a much lower steady level. Using a double pulse protocol the fast inactivation follows an arithmetic rule: if the conditioning depolarization is less than or equal to the test depolarization, then decay (peak minus steady level) in the conditioning release is approximately equal to suppression (unconditioned minus conditioned peak) of the test release. This is due to quantal activation by voltage, analogous to the quantal activation of IP3 receptor channels. Two mechanisms are possible. One is the existence of subsets of channels with different sensitivities to voltage. The other is that the clusters of Ca2+-gated Ryanodine Receptor (RyR) β in the parajunctional terminal cisternae might constitute the quantal units. These Ca2+-gated channels are activated by the release of Ca2+ through the voltage-gated RyR α channels. If the RyR β were at the basis of quantal release, it should be modified by strong inhibition of the primary voltage-gated release. This was attained in two ways, by sarcoplasmic reticulum (SR) Ca2+ depletion and by voltage-dependent inactivation. Both procedures reduced global Ca2+ release flux, but SR Ca2+ depletion reduced the single RyR current as well. The effect of both interventions on the quantal properties of Ca2+ release in frog skeletal muscle fibers were studied under voltage clamp. The quantal properties of release were preserved regardless of the inhibitory maneuver applied. These findings put a limit on the role of the Ca2+-activated component of release in generating quantal activation.
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Affiliation(s)
- J F Olivera
- Departamento de Biofísica, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
| | - G Pizarro
- Departamento de Biofísica, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay.
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Pinckard KM, Félix-Soriano E, Hamilton S, Terentyeva R, Baer LA, Wright KR, Nassal D, Esteves JV, Abay E, Shettigar VK, Ziolo MT, Hund TJ, Wold LE, Terentyev D, Stanford KI. Maternal exercise preserves offspring cardiovascular health via oxidative regulation of the ryanodine receptor. Mol Metab 2024; 82:101914. [PMID: 38479548 PMCID: PMC10965826 DOI: 10.1016/j.molmet.2024.101914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 02/28/2024] [Accepted: 03/05/2024] [Indexed: 03/19/2024] Open
Abstract
OBJECTIVE The intrauterine environment during pregnancy is a critical factor in the development of obesity, diabetes, and cardiovascular disease in offspring. Maternal exercise prevents the detrimental effects of a maternal high fat diet on the metabolic health in adult offspring, but the effects of maternal exercise on offspring cardiovascular health have not been thoroughly investigated. METHODS To determine the effects of maternal exercise on offspring cardiovascular health, female mice were fed a chow (C; 21% kcal from fat) or high-fat (H; 60% kcal from fat) diet and further subdivided into sedentary (CS, HS) or wheel exercised (CW, HW) prior to pregnancy and throughout gestation. Offspring were maintained in a sedentary state and chow-fed throughout 52 weeks of age and subjected to serial echocardiography and cardiomyocyte isolation for functional and mechanistic studies. RESULTS High-fat fed sedentary dams (HS) produced female offspring with reduced ejection fraction (EF) compared to offspring from chow-fed dams (CS), but EF was preserved in offspring from high-fat fed exercised dams (HW) throughout 52 weeks of age. Cardiomyocytes from HW female offspring had increased kinetics, calcium cycling, and respiration compared to CS and HS offspring. HS offspring had increased oxidation of the RyR2 in cardiomyocytes coupled with increased baseline sarcomere length, resulting in RyR2 overactivity, which was negated in female HW offspring. CONCLUSIONS These data suggest a role for maternal exercise to protect against the detrimental effects of a maternal high-fat diet on female offspring cardiac health. Maternal exercise improved female offspring cardiomyocyte contraction, calcium cycling, respiration, RyR2 oxidation, and RyR2 activity. These data present an important, translatable role for maternal exercise to preserve cardiac health of female offspring and provide insight on mechanisms to prevent the transmission of cardiovascular diseases to subsequent generations.
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Affiliation(s)
- Kelsey M Pinckard
- Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH, USA; Department of Physiology and Cell Biology, The Ohio State University College of Medicine, Columbus, OH, USA
| | - Elisa Félix-Soriano
- Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH, USA; Department of Physiology and Cell Biology, The Ohio State University College of Medicine, Columbus, OH, USA; Department of Surgery, Division of General and Gastrointestinal Surgery, The Ohio State University College of Medicine, Columbus, OH, USA
| | - Shanna Hamilton
- Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH, USA; Department of Physiology and Cell Biology, The Ohio State University College of Medicine, Columbus, OH, USA
| | - Radmila Terentyeva
- Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH, USA; Department of Physiology and Cell Biology, The Ohio State University College of Medicine, Columbus, OH, USA
| | - Lisa A Baer
- Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH, USA; Department of Physiology and Cell Biology, The Ohio State University College of Medicine, Columbus, OH, USA; Department of Surgery, Division of General and Gastrointestinal Surgery, The Ohio State University College of Medicine, Columbus, OH, USA
| | - Katherine R Wright
- Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH, USA; Department of Physiology and Cell Biology, The Ohio State University College of Medicine, Columbus, OH, USA
| | - Drew Nassal
- Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH, USA; Department of Internal Medicine, Cardiovascular Medicine, The Ohio State University College of Medicine, Columbus, OH, USA
| | - Joao Victor Esteves
- Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH, USA; Department of Physiology and Cell Biology, The Ohio State University College of Medicine, Columbus, OH, USA; Department of Surgery, Division of General and Gastrointestinal Surgery, The Ohio State University College of Medicine, Columbus, OH, USA
| | - Eaman Abay
- Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH, USA; Department of Physiology and Cell Biology, The Ohio State University College of Medicine, Columbus, OH, USA
| | - Vikram K Shettigar
- Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH, USA; Department of Physiology and Cell Biology, The Ohio State University College of Medicine, Columbus, OH, USA
| | - Mark T Ziolo
- Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH, USA; Department of Physiology and Cell Biology, The Ohio State University College of Medicine, Columbus, OH, USA
| | - Thomas J Hund
- Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH, USA; Department of Internal Medicine, Cardiovascular Medicine, The Ohio State University College of Medicine, Columbus, OH, USA; Department of Biomedical Engineering, The Ohio State University College of Engineering, Columbus, OH, USA
| | - Loren E Wold
- Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH, USA; Department of Physiology and Cell Biology, The Ohio State University College of Medicine, Columbus, OH, USA; Department of Surgery, Division of Cardiac Surgery, The Ohio State University College of Medicine, Columbus, OH, USA
| | - Dmitry Terentyev
- Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH, USA; Department of Physiology and Cell Biology, The Ohio State University College of Medicine, Columbus, OH, USA
| | - Kristin I Stanford
- Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH, USA; Department of Physiology and Cell Biology, The Ohio State University College of Medicine, Columbus, OH, USA; Department of Surgery, Division of General and Gastrointestinal Surgery, The Ohio State University College of Medicine, Columbus, OH, USA.
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6
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Souidi M, Resta J, Dridi H, Sleiman Y, Reiken S, Formoso K, Colombani S, Amédro P, Meyer P, Charrabi A, Vincenti M, Liu Y, Soni RK, Lezoualc'h F, Stéphane Blot D, Rivier F, Cazorla O, Parini A, Marks AR, Mialet‐Perez J, Lacampagne A, Meli AC. Ryanodine receptor dysfunction causes senescence and fibrosis in Duchenne dilated cardiomyopathy. J Cachexia Sarcopenia Muscle 2024; 15:536-551. [PMID: 38221511 PMCID: PMC10995256 DOI: 10.1002/jcsm.13411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 10/03/2023] [Accepted: 11/23/2023] [Indexed: 01/16/2024] Open
Abstract
BACKGROUND Duchenne muscular dystrophy (DMD) is an X-linked disorder characterized by progressive muscle weakness due to the absence of functional dystrophin. DMD patients also develop dilated cardiomyopathy (DCM). We have previously shown that DMD (mdx) mice and a canine DMD model (GRMD) exhibit abnormal intracellular calcium (Ca2+) cycling related to early-stage pathological remodelling of the ryanodine receptor intracellular calcium release channel (RyR2) on the sarcoplasmic reticulum (SR) contributing to age-dependent DCM. METHODS Here, we used hiPSC-CMs from DMD patients selected by Speckle-tracking echocardiography and canine DMD cardiac biopsies to assess key early-stage Duchenne DCM features. RESULTS Dystrophin deficiency was associated with RyR2 remodelling and SR Ca2+ leak (RyR2 Po of 0.03 ± 0.01 for HC vs. 0.16 ± 0.01 for DMD, P < 0.01), which led to early-stage defects including senescence. We observed higher levels of senescence markers including p15 (2.03 ± 0.75 for HC vs. 13.67 ± 5.49 for DMD, P < 0.05) and p16 (1.86 ± 0.83 for HC vs. 10.71 ± 3.00 for DMD, P < 0.01) in DMD hiPSC-CMs and in the canine DMD model. The fibrosis was increased in DMD hiPSC-CMs. We observed cardiac hypocontractility in DMD hiPSC-CMs. Stabilizing RyR2 pharmacologically by S107 prevented most of these pathological features, including the rescue of the contraction amplitude (1.65 ± 0.06 μm for DMD vs. 2.26 ± 0.08 μm for DMD + S107, P < 0.01). These data were confirmed by proteomic analyses, in particular ECM remodelling and fibrosis. CONCLUSIONS We identified key cellular damages that are established earlier than cardiac clinical pathology in DMD patients, with major perturbation of the cardiac ECC. Our results demonstrated that cardiac fibrosis and premature senescence are induced by RyR2 mediated SR Ca2+ leak in DMD cardiomyocytes. We revealed that RyR2 is an early biomarker of DMD-associated cardiac damages in DMD patients. The progressive and later DCM onset could be linked with the RyR2-mediated increased fibrosis and premature senescence, eventually causing cell death and further cardiac fibrosis in a vicious cycle leading to further hypocontractility as a major feature of DCM. The present study provides a novel understanding of the pathophysiological mechanisms of the DMD-induced DCM. By targeting RyR2 channels, it provides a potential pharmacological treatment.
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Affiliation(s)
- Monia Souidi
- PhyMedExpUniversity of Montpellier, INSERM, CNRSMontpellierFrance
| | - Jessica Resta
- Institute of Metabolic and Cardiovascular Diseases (I2MC), INSERMUniversity of ToulouseToulouseFrance
| | - Haikel Dridi
- Department of Physiology and Cellular Biophysics, Clyde and Helen Wu Center for Molecular CardiologyColumbia University Vagelos College of Physicians and SurgeonsNew YorkNYUSA
| | - Yvonne Sleiman
- PhyMedExpUniversity of Montpellier, INSERM, CNRSMontpellierFrance
| | - Steve Reiken
- Department of Physiology and Cellular Biophysics, Clyde and Helen Wu Center for Molecular CardiologyColumbia University Vagelos College of Physicians and SurgeonsNew YorkNYUSA
| | - Karina Formoso
- Institute of Metabolic and Cardiovascular Diseases (I2MC), INSERMUniversity of ToulouseToulouseFrance
| | - Sarah Colombani
- PhyMedExpUniversity of Montpellier, INSERM, CNRSMontpellierFrance
| | - Pascal Amédro
- PhyMedExpUniversity of Montpellier, INSERM, CNRSMontpellierFrance
- Department of Pediatric and Congenital Cardiology, M3C Regional Reference CHD Centre, Clinical Investigation CentreMontpellier University HospitalMontpellierFrance
| | - Pierre Meyer
- PhyMedExpUniversity of Montpellier, INSERM, CNRSMontpellierFrance
- Department of Pediatric Neurology, Reference Center for Neuromuscular Diseases AOC, Clinical Investigation CentreMontpellier University HospitalMontpellierFrance
| | - Azzouz Charrabi
- PhyMedExpUniversity of Montpellier, INSERM, CNRSMontpellierFrance
| | - Marie Vincenti
- PhyMedExpUniversity of Montpellier, INSERM, CNRSMontpellierFrance
- Department of Pediatric and Congenital Cardiology, M3C Regional Reference CHD Centre, Clinical Investigation CentreMontpellier University HospitalMontpellierFrance
| | - Yang Liu
- Department of Physiology and Cellular Biophysics, Clyde and Helen Wu Center for Molecular CardiologyColumbia University Vagelos College of Physicians and SurgeonsNew YorkNYUSA
| | - Rajesh Kumar Soni
- Proteomics and Macromolecular Crystallography Shared ResourceHerbert Irving Comprehensive Cancer CenterNew YorkNYUSA
| | - Frank Lezoualc'h
- Institute of Metabolic and Cardiovascular Diseases (I2MC), INSERMUniversity of ToulouseToulouseFrance
| | - D.V.M. Stéphane Blot
- IMRB ‐ Biology of the neuromuscular system, INSERM, UPEC, EFS, EnvAMaisons‐AlfortFrance
| | - François Rivier
- PhyMedExpUniversity of Montpellier, INSERM, CNRSMontpellierFrance
- Department of Pediatric Neurology, Reference Center for Neuromuscular Diseases AOC, Clinical Investigation CentreMontpellier University HospitalMontpellierFrance
| | - Olivier Cazorla
- PhyMedExpUniversity of Montpellier, INSERM, CNRSMontpellierFrance
| | - Angelo Parini
- Institute of Metabolic and Cardiovascular Diseases (I2MC), INSERMUniversity of ToulouseToulouseFrance
| | - Andrew R. Marks
- Department of Physiology and Cellular Biophysics, Clyde and Helen Wu Center for Molecular CardiologyColumbia University Vagelos College of Physicians and SurgeonsNew YorkNYUSA
| | - Jeanne Mialet‐Perez
- Institute of Metabolic and Cardiovascular Diseases (I2MC), INSERMUniversity of ToulouseToulouseFrance
- Present address:
MitoLab Team, UMR CNRS 6015, INSERM U1083, MitoVasc InstituteAngers UniversityAngersFrance
| | - Alain Lacampagne
- PhyMedExpUniversity of Montpellier, INSERM, CNRSMontpellierFrance
| | - Albano C. Meli
- PhyMedExpUniversity of Montpellier, INSERM, CNRSMontpellierFrance
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7
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Dubois M, Boulghobra D, Rochebloine G, Pallot F, Yehya M, Bornard I, Gayrard S, Coste F, Walther G, Meyer G, Gaillard JC, Armengaud J, Alpha-Bazin B, Reboul C. Hyperglycemia triggers RyR2-dependent alterations of mitochondrial calcium homeostasis in response to cardiac ischemia-reperfusion: Key role of DRP1 activation. Redox Biol 2024; 70:103044. [PMID: 38266577 PMCID: PMC10835010 DOI: 10.1016/j.redox.2024.103044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 01/04/2024] [Accepted: 01/14/2024] [Indexed: 01/26/2024] Open
Abstract
Hyperglycemia increases the heart sensitivity to ischemia-reperfusion (IR), but the underlying cellular mechanisms remain unclear. Mitochondrial dynamics (the processes that govern mitochondrial morphology and their interactions with other organelles, such as the reticulum), has emerged as a key factor in the heart vulnerability to IR. However, it is unknown whether mitochondrial dynamics contributes to hyperglycemia deleterious effect during IR. We hypothesized that (i) the higher heart vulnerability to IR in hyperglycemic conditions could be explained by hyperglycemia effect on the complex interplay between mitochondrial dynamics, Ca2+ homeostasis, and reactive oxygen species (ROS) production; and (ii) the activation of DRP1, a key regulator of mitochondrial dynamics, could play a central role. Using transmission electron microscopy and proteomic analysis, we showed that the interactions between sarcoplasmic reticulum and mitochondria and mitochondrial fission were increased during IR in isolated rat hearts perfused with a hyperglycemic buffer compared with hearts perfused with a normoglycemic buffer. In isolated mitochondria and cardiomyocytes, hyperglycemia increased mitochondrial ROS production and Ca2+ uptake. This was associated with higher RyR2 instability. These results could contribute to explain the early mPTP activation in mitochondria from isolated hearts perfused with a hyperglycemic buffer and in hearts from streptozotocin-treated rats (to increase the blood glucose). DRP1 inhibition by Mdivi-1 during the hyperglycemic phase and before IR induction, normalized Ca2+ homeostasis, ROS production, mPTP activation, and reduced the heart sensitivity to IR in streptozotocin-treated rats. In conclusion, hyperglycemia-dependent DRP1 activation results in higher reticulum-mitochondria calcium exchange that contribute to the higher heart vulnerability to IR.
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Affiliation(s)
- Mathilde Dubois
- LAPEC UPR-4278, Avignon Université, F-84000, Avignon, France
| | | | | | - Florian Pallot
- LAPEC UPR-4278, Avignon Université, F-84000, Avignon, France
| | - Marc Yehya
- LAPEC UPR-4278, Avignon Université, F-84000, Avignon, France
| | - Isabelle Bornard
- UR407 INRAE Pathologie Végétale, INRAE, 84140, Montfavet, France
| | | | - Florence Coste
- LAPEC UPR-4278, Avignon Université, F-84000, Avignon, France
| | | | - Gregory Meyer
- LAPEC UPR-4278, Avignon Université, F-84000, Avignon, France
| | - Jean-Charles Gaillard
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SPI, 30200, Bagnols-sur-Cèze, France
| | - Jean Armengaud
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SPI, 30200, Bagnols-sur-Cèze, France
| | - Béatrice Alpha-Bazin
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SPI, 30200, Bagnols-sur-Cèze, France
| | - Cyril Reboul
- LAPEC UPR-4278, Avignon Université, F-84000, Avignon, France.
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8
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Yao J, Chen SRW. RyR2-dependent modulation of neuronal hyperactivity: A potential therapeutic target for treating Alzheimer's disease. J Physiol 2024; 602:1509-1518. [PMID: 36866974 DOI: 10.1113/jp283824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 02/27/2023] [Indexed: 03/04/2023] Open
Abstract
Increasing evidence suggests that simply reducing β-amyloid (Aβ) plaques may not significantly affect the progression of Alzheimer's disease (AD). There is also increasing evidence indicating that AD progression is driven by a vicious cycle of soluble Aβ-induced neuronal hyperactivity. In support of this, it has recently been shown that genetically and pharmacologically limiting ryanodine receptor 2 (RyR2) open time prevents neuronal hyperactivity, memory impairment, dendritic spine loss and neuronal cell death in AD mouse models. By contrast, increased RyR2 open probability (Po) exacerbates the onset of familial AD-associated neuronal dysfunction and induces AD-like defects in the absence of AD-causing gene mutations. Thus, RyR2-dependent modulation of neuronal hyperactivity represents a promising new target for combating AD.
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Affiliation(s)
- Jinjing Yao
- Libin Cardiovascular Institute, Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Hotchkiss Brain Institute, Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - S R Wayne Chen
- Libin Cardiovascular Institute, Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Hotchkiss Brain Institute, Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
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9
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Xu J, Liao C, Yin CC, Li G, Zhu Y, Sun F. In situ structural insights into the excitation-contraction coupling mechanism of skeletal muscle. Sci Adv 2024; 10:eadl1126. [PMID: 38507485 PMCID: PMC10954225 DOI: 10.1126/sciadv.adl1126] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 02/12/2024] [Indexed: 03/22/2024]
Abstract
Excitation-contraction coupling (ECC) is a fundamental mechanism in control of skeletal muscle contraction and occurs at triad junctions, where dihydropyridine receptors (DHPRs) on transverse tubules sense excitation signals and then cause calcium release from the sarcoplasmic reticulum via coupling to type 1 ryanodine receptors (RyR1s), inducing the subsequent contraction of muscle filaments. However, the molecular mechanism remains unclear due to the lack of structural details. Here, we explored the architecture of triad junction by cryo-electron tomography, solved the in situ structure of RyR1 in complex with FKBP12 and calmodulin with the resolution of 16.7 Angstrom, and found the intact RyR1-DHPR supercomplex. RyR1s arrange into two rows on the terminal cisternae membrane by forming right-hand corner-to-corner contacts, and tetrads of DHPRs bind to RyR1s in an alternating manner, forming another two rows on the transverse tubule membrane. This unique arrangement is important for synergistic calcium release and provides direct evidence of physical coupling in ECC.
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Affiliation(s)
- Jiashu Xu
- Key Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chenyi Liao
- Laboratory of Molecular Modeling and Design, State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Chang-Cheng Yin
- Department of Biophysics, The Health Science Center, Peking University, Beijing 100191, China
- Electron Microscopy Analysis Laboratory, The Health Science Center, Peking University, Beijing 100191, China
- Center for Protein Science, Peking University, Beijing 100871, China
| | - Guohui Li
- Laboratory of Molecular Modeling and Design, State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Yun Zhu
- Key Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Fei Sun
- Key Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Center for Biological Imaging, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
- Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangzhou, Guangdong, 510005, China
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10
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Kar A, Ghosh P, Gautam A, Chowdhury S, Basak D, Sarkar I, Bhoumik A, Barman S, Chakraborty P, Mukhopadhyay A, Mehrotra S, Ganesan SK, Paul S, Chatterjee S. CD38-RyR2 axis-mediated signaling impedes CD8 + T cell response to anti-PD1 therapy in cancer. Proc Natl Acad Sci U S A 2024; 121:e2315989121. [PMID: 38451948 PMCID: PMC10945783 DOI: 10.1073/pnas.2315989121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 01/08/2024] [Indexed: 03/09/2024] Open
Abstract
PD1 blockade therapy, harnessing the cytotoxic potential of CD8+ T cells, has yielded clinical success in treating malignancies. However, its efficacy is often limited due to the progressive differentiation of intratumoral CD8+ T cells into a hypofunctional state known as terminal exhaustion. Despite identifying CD8+ T cell subsets associated with immunotherapy resistance, the molecular pathway triggering the resistance remains elusive. Given the clear association of CD38 with CD8+ T cell subsets resistant to anti-PD1 therapy, we investigated its role in inducing resistance. Phenotypic and functional characterization, along with single-cell RNA sequencing analysis of both in vitro chronically stimulated and intratumoral CD8+ T cells, revealed that CD38-expressing CD8+ T cells are terminally exhausted. Exploring the molecular mechanism, we found that CD38 expression was crucial in promoting terminal differentiation of CD8+ T cells by suppressing TCF1 expression, thereby rendering them unresponsive to anti-PD1 therapy. Genetic ablation of CD38 in tumor-reactive CD8+ T cells restored TCF1 levels and improved the responsiveness to anti-PD1 therapy in mice. Mechanistically, CD38 expression on exhausted CD8+ T cells elevated intracellular Ca2+ levels through RyR2 calcium channel activation. This, in turn, promoted chronic AKT activation, leading to TCF1 loss. Knockdown of RyR2 or inhibition of AKT in CD8+ T cells maintained TCF1 levels, induced a sustained anti-tumor response, and enhanced responsiveness to anti-PD1 therapy. Thus, targeting CD38 represents a potential strategy to improve the efficacy of anti-PD1 treatment in cancer.
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Affiliation(s)
- Anwesha Kar
- Division of Cancer Biology and Inflammatory Disorder, Translational Research Unit of Excellence, Council of Scientific and Industrial Research-Indian Institute of Chemical Biology, Kolkata700032, West Bengal, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad201002, Uttar Pradesh, India
| | - Puspendu Ghosh
- Division of Cancer Biology and Inflammatory Disorder, Translational Research Unit of Excellence, Council of Scientific and Industrial Research-Indian Institute of Chemical Biology, Kolkata700032, West Bengal, India
| | - Anupam Gautam
- Algorithms in Bioinformatics, Institute for Bioinformatics and Medical Informatics, University of Tübingen, Sand 1472076, Tübingen, Baden-Württemberg, Germany
- International Max Planck Research School “From Molecules to Organisms”, Max Planck Institute for Biology Tübingen72076, Tübingen, Baden-Württemberg, Germany
| | - Snehanshu Chowdhury
- Division of Cancer Biology and Inflammatory Disorder, Translational Research Unit of Excellence, Council of Scientific and Industrial Research-Indian Institute of Chemical Biology, Kolkata700032, West Bengal, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad201002, Uttar Pradesh, India
| | - Debashree Basak
- Division of Cancer Biology and Inflammatory Disorder, Translational Research Unit of Excellence, Council of Scientific and Industrial Research-Indian Institute of Chemical Biology, Kolkata700032, West Bengal, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad201002, Uttar Pradesh, India
| | - Ishita Sarkar
- Division of Cancer Biology and Inflammatory Disorder, Translational Research Unit of Excellence, Council of Scientific and Industrial Research-Indian Institute of Chemical Biology, Kolkata700032, West Bengal, India
| | - Arpita Bhoumik
- Division of Cancer Biology and Inflammatory Disorder, Translational Research Unit of Excellence, Council of Scientific and Industrial Research-Indian Institute of Chemical Biology, Kolkata700032, West Bengal, India
| | - Shubhrajit Barman
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad201002, Uttar Pradesh, India
- Division of Structural Biology & Bioinformatics, Council of Scientific and Industrial Research-Indian Institute of Chemical Biology, Kolkata700032, West Bengal, India
| | - Paramita Chakraborty
- Department of Surgery, Medical University of South Carolina, Charleston, South CarolinaSC- 29425
| | - Asima Mukhopadhyay
- Kolkata Gynaecology Oncology Trials and Translational Research Group, Kolkata700156, West Bengal, India
| | - Shikhar Mehrotra
- Department of Surgery, Medical University of South Carolina, Charleston, South CarolinaSC- 29425
| | - Senthil Kumar Ganesan
- Division of Structural Biology & Bioinformatics, Council of Scientific and Industrial Research-Indian Institute of Chemical Biology, Kolkata700032, West Bengal, India
| | - Sandip Paul
- System Biology Informatics Lab, Center for Health Science and Technology, JIS Institute of Advanced Studies and Research, JIS University, Kolkata700091, West Bengal, India
| | - Shilpak Chatterjee
- Division of Cancer Biology and Inflammatory Disorder, Translational Research Unit of Excellence, Council of Scientific and Industrial Research-Indian Institute of Chemical Biology, Kolkata700032, West Bengal, India
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11
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Gaglianone RB, Launikonis BS. Muscle fibre mitochondrial [Ca 2+ ] dynamics during Ca 2+ waves in RYR1 gain-of-function mouse. Acta Physiol (Oxf) 2024; 240:e14098. [PMID: 38240476 DOI: 10.1111/apha.14098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 11/14/2023] [Accepted: 01/01/2024] [Indexed: 02/24/2024]
Abstract
AIM A fraction of the Ca2+ released from the sarcoplasmic reticulum (SR) enters mitochondria to transiently increase its [Ca2+ ] ([Ca2+ ]mito ). This transient [Ca2+ ]mito increase may be important in the resynthesis of ATP and other processes. The resynthesis of ATP in the mitochondria generates heat that can lead to hypermetabolic reactions in muscle with ryanodine receptor 1 (RyR1) variants during the cyclic releasing of SR Ca2+ in the presence of a RyR1 agonist. We aimed to analyse whether the mitochondria of RYR1 variant muscle handles Ca2+ differently from healthy muscle. METHODS We used confocal microscopy to track mitochondrial and cytoplasmic Ca2+ with fluorescent dyes simultaneously during caffeine-induced Ca2+ waves in extensor digitorum longus muscle fibres from healthy mice and mice heterozygous (HET) for a malignant hyperthermia-causative RYR1 variant. RESULTS Mitochondrial Ca2+ -transient peaks trailed the peak of cytoplasmic Ca2+ transients by many seconds with [Ca2+ ]mito not increasing by more than 250 nM. A strong linear relationship between cytoplasmic Ca2+ and [Ca2+ ]mito amplitudes was observed in HET RYR1 KI fibres but not wild type (WT). CONCLUSION Our results indicate that [Ca2+ ]mito change within the nM range during SR Ca2+ release. HET fibre mitochondria are more sensitive to SR Ca2+ release flux than WT. This may indicate post-translation modification differences of the mitochondrial Ca2+ uniporter between the genotypes.
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Affiliation(s)
- Rhayanna B Gaglianone
- School of Biomedical Sciences, The University of Queensland, Brisbane, Queensland, Australia
| | - Bradley S Launikonis
- School of Biomedical Sciences, The University of Queensland, Brisbane, Queensland, Australia
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12
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Hua X, Yao J, Liu X, Liu Q, Deng Y, Li S, Valdivia CR, Wang F, Pozzolini M, Shou Z, Valdivia HH, Xiao L. Comparison of the structure-function of five newly members of the calcin family. Int J Biol Macromol 2024; 260:129424. [PMID: 38219929 DOI: 10.1016/j.ijbiomac.2024.129424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 01/03/2024] [Accepted: 01/09/2024] [Indexed: 01/16/2024]
Abstract
Calcins are a group of scorpion toxin peptides specifically binding to ryanodine receptors (RyRs) with high affinity, and have the ability to activate and stabilize RyR in a long-lasting subconductance state. Five newly calcins synthesized compounds exhibit typical structural characteristics of a specific family through chemical synthesis and virtual analysis. As the calcins from the same species, Petersiicalcin1 and Petersiicalcin2, Jendekicalcin2 and Jendekicalcin3, have only one residue difference. Both Petersiicalcin1 and Petersiicalcin2 exhibited different affinities in stimulating [3H]ryanodine binding, but the residue mutation resulted in a 2.7 folds difference. Other calcins also exhibited a stimulatory effect on [3H]ryanodine binding to RyR1, however, their affinities were significantly lower than that of Petersiiicalcin1 and Petersiiicalcin2. The channel domain of RyR1 was found to be capable of binding with the basic residues of these calcins, which also exhibited interactions with the S6 helices on RyR1. Dynamic simulations were conducted for Petersiicalcin1 and Petersiicalcin2, which demonstrated their ability to form a highly stable conformation and resulting in an asymmetric tetramer structure of RyR1. The discovery of five newly calcins further enriches the diversity of the natural calcin family, which provides more native peptides for the structure-function analysis between calcin and RyRs.
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Affiliation(s)
- Xiaoyu Hua
- Department of Occupational and Environmental Health, Faculty of Naval Medicine, Naval Medical University (Second Military Medical University), Shanghai 200433, China
| | - Jinchi Yao
- Department of Occupational and Environmental Health, Faculty of Naval Medicine, Naval Medical University (Second Military Medical University), Shanghai 200433, China; School of Life Sciences, Liaoning Normal University, Dalian 116081, China
| | - Xinyan Liu
- Department of Traditional Chinese Medicine Surgery, the First Affiliated Hospital of the Navy Medical University, Shanghai, 200433, China
| | - Qing Liu
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Shanxi, Taigu 030801, China
| | - Yuchen Deng
- Department of Dermatology, Second Affiliated Hospital of Naval Medical University, Shanghai 200003, China
| | - Songhua Li
- Department of Cardiology, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Carmen R Valdivia
- Department of Medicine and Cardiovascular Research Center, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI, USA.
| | - Fei Wang
- Department of Occupational and Environmental Health, Faculty of Naval Medicine, Naval Medical University (Second Military Medical University), Shanghai 200433, China
| | - Marina Pozzolini
- Department of Earth, Environment and Life Sciences (DISTAV), University of Genova, Via Pastore 3, 16132 Genova, Italy.
| | - Zhaoyong Shou
- Faculty of Health Service, Nacal Medical University (Second Military Medical University), Shanghai 200433, China.
| | - Héctor H Valdivia
- Department of Medicine and Cardiovascular Research Center, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI, USA.
| | - Liang Xiao
- Department of Occupational and Environmental Health, Faculty of Naval Medicine, Naval Medical University (Second Military Medical University), Shanghai 200433, China.
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13
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Xia Y, Zhang XH, Yamaguchi N, Morad M. Point mutations in RyR2 Ca2+-binding residues of human cardiomyocytes cause cellular remodelling of cardiac excitation contraction-coupling. Cardiovasc Res 2024; 120:44-55. [PMID: 37890099 PMCID: PMC10898933 DOI: 10.1093/cvr/cvad163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 07/17/2023] [Accepted: 09/26/2023] [Indexed: 10/29/2023] Open
Abstract
AIMS CRISPR/Cas9 gene edits of cardiac ryanodine receptor (RyR2) in human-induced pluripotent stem cell derived cardiomyocytes (hiPSC-CMs) provide a novel platform for introducing mutations in RyR2 Ca2+-binding residues and examining the resulting excitation contraction (EC)-coupling remodelling consequences. METHODS AND RESULTS Ca2+-signalling phenotypes of mutations in RyR2 Ca2+-binding site residues associated with cardiac arrhythmia (RyR2-Q3925E) or not proven to cause cardiac pathology (RyR2-E3848A) were determined using ICa- and caffeine-triggered Ca2+ releases in voltage-clamped and total internal reflection fluorescence-imaged wild type and mutant cardiomyocytes infected with sarcoplasmic reticulum (SR)-targeted ER-GCaMP6 probe. (i) ICa- and caffeine-triggered Fura-2 or ER-GCaMP6 signals were suppressed, even when ICa was significantly enhanced in Q3925E and E3848A mutant cardiomyocytes; (ii) spontaneous beating (Fura-2 Ca2+ transients) persisted in mutant cells without the SR-release signals; (iii) while 5-20 mM caffeine failed to trigger Ca2+-release in voltage-clamped mutant cells, only ∼20% to ∼70% of intact myocytes responded respectively to caffeine; (iv) and 20 mM caffeine transients, however, activated slowly, were delayed, and variably suppressed by 2-APB, FCCP, or ruthenium red. CONCLUSION Mutating RyR2 Ca2+-binding residues, irrespective of their reported pathogenesis, suppressed both ICa- and caffeine-triggered Ca2+ releases, suggesting interaction between Ca2+- and caffeine-binding sites. Enhanced transmembrane calcium influx and remodelling of EC-coupling pathways may underlie the persistence of spontaneous beating in Ca2+-induced Ca2+ release-suppressed mutant myocytes.
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Affiliation(s)
- Yanli Xia
- Cardiac Signaling Center of University of South Carolina, Medical University of South Carolina and Clemson University, 68 President Street, Bioengineering building Rm 306, Charleston, SC 29425, USA
| | - Xiao-hua Zhang
- Cardiac Signaling Center of University of South Carolina, Medical University of South Carolina and Clemson University, 68 President Street, Bioengineering building Rm 306, Charleston, SC 29425, USA
| | - Naohiro Yamaguchi
- Cardiac Signaling Center of University of South Carolina, Medical University of South Carolina and Clemson University, 68 President Street, Bioengineering building Rm 306, Charleston, SC 29425, USA
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, 68 President Street, Bioengineering building Rm 306, Charleston, SC 29425, USA
| | - Martin Morad
- Cardiac Signaling Center of University of South Carolina, Medical University of South Carolina and Clemson University, 68 President Street, Bioengineering building Rm 306, Charleston, SC 29425, USA
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, 68 President Street, Bioengineering building Rm 306, Charleston, SC 29425, USA
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14
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Gochman A, Do TQ, Kim K, Schwarz JA, Thorpe MP, Blackwell DJ, Ritschel PA, Smith AN, Rebbeck RT, Akers WS, Cornea RL, Laver DR, Johnston JN, Knollmann BC. ent-Verticilide B1 Inhibits Type 2 Ryanodine Receptor Channels and is Antiarrhythmic in Casq2 -/- Mice. Mol Pharmacol 2024; 105:194-201. [PMID: 38253398 PMCID: PMC10877729 DOI: 10.1124/molpharm.123.000752] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 12/20/2023] [Accepted: 01/02/2024] [Indexed: 01/24/2024] Open
Abstract
Intracellular Ca2+ leak from cardiac ryanodine receptor (RyR2) is an established mechanism of sudden cardiac death (SCD), whereby dysregulated Ca2+ handling causes ventricular arrhythmias. We previously discovered the RyR2-selective inhibitor ent-(+)-verticilide (ent-1), a 24-membered cyclooligomeric depsipeptide that is the enantiomeric form of a natural product (nat-(-)-verticilide). Here, we examined its 18-membered ring-size oligomer (ent-verticilide B1; "ent-B1") in RyR2 single channel and [3H]ryanodine binding assays, and in Casq2 -/- cardiomyocytes and mice, a gene-targeted model of SCD. ent-B1 inhibited RyR2 single channels and RyR2-mediated spontaneous Ca2+ release in Casq2 -/- cardiomyocytes with sub-micromolar potency. ent-B1 was a partial RyR2 inhibitor, with maximal inhibitory efficacy of less than 50%. ent-B1 was stable in plasma, with a peak plasma concentration of 1460 ng/ml at 10 minutes and half-life of 45 minutes after intraperitoneal administration of 3 mg/kg in mice. In vivo, ent-B1 significantly reduced catecholamine-induced ventricular arrhythmias in Casq2 -/- mice in a dose-dependent manner. Hence, we have identified a novel chemical entity - ent-B1 - that preserves the mechanism of action of a hit compound and shows therapeutic efficacy. These findings strengthen RyR2 as an antiarrhythmic drug target and highlight the potential of investigating the mirror-image isomers of natural products to discover new therapeutics. SIGNIFICANCE STATEMENT: The cardiac ryanodine receptor (RyR2) is an untapped target in the stagnant field of antiarrhythmic drug development. We have confirmed RyR2 as an antiarrhythmic target in a mouse model of sudden cardiac death and shown the therapeutic efficacy of a second enantiomeric natural product.
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Affiliation(s)
- Aaron Gochman
- Vanderbilt Center for Arrhythmia Research and Therapeutics, Division of Clinical Pharmacology, Vanderbilt University Medical Center, Nashville, Tennessee (A.G., T.Q.D. K.K., D.J.B., P.A.R., B.C.K.); Vanderbilt Department of Chemistry and Institute of Chemical Biology, Vanderbilt University, Nashville, Tennessee (M.P.T., A.N.S., J.N.J.); Pharmaceutical Sciences Research Center, Lipscomb University College of Pharmacy, Nashville, Tennessee (W.S.A.); Department of Biochemistry, Molecular Biology, and Biophysics, University of Minnesota, Minneapolis, Minnesota (J.A.S., R.L.C., R.T.R.); and School of Biomedical Sciences and Pharmacy, University of Newcastle and Hunter Medical Research Institute, Callaghan, NSW 2308, Australia (D.R.L.)
| | - Tri Q Do
- Vanderbilt Center for Arrhythmia Research and Therapeutics, Division of Clinical Pharmacology, Vanderbilt University Medical Center, Nashville, Tennessee (A.G., T.Q.D. K.K., D.J.B., P.A.R., B.C.K.); Vanderbilt Department of Chemistry and Institute of Chemical Biology, Vanderbilt University, Nashville, Tennessee (M.P.T., A.N.S., J.N.J.); Pharmaceutical Sciences Research Center, Lipscomb University College of Pharmacy, Nashville, Tennessee (W.S.A.); Department of Biochemistry, Molecular Biology, and Biophysics, University of Minnesota, Minneapolis, Minnesota (J.A.S., R.L.C., R.T.R.); and School of Biomedical Sciences and Pharmacy, University of Newcastle and Hunter Medical Research Institute, Callaghan, NSW 2308, Australia (D.R.L.)
| | - Kyungsoo Kim
- Vanderbilt Center for Arrhythmia Research and Therapeutics, Division of Clinical Pharmacology, Vanderbilt University Medical Center, Nashville, Tennessee (A.G., T.Q.D. K.K., D.J.B., P.A.R., B.C.K.); Vanderbilt Department of Chemistry and Institute of Chemical Biology, Vanderbilt University, Nashville, Tennessee (M.P.T., A.N.S., J.N.J.); Pharmaceutical Sciences Research Center, Lipscomb University College of Pharmacy, Nashville, Tennessee (W.S.A.); Department of Biochemistry, Molecular Biology, and Biophysics, University of Minnesota, Minneapolis, Minnesota (J.A.S., R.L.C., R.T.R.); and School of Biomedical Sciences and Pharmacy, University of Newcastle and Hunter Medical Research Institute, Callaghan, NSW 2308, Australia (D.R.L.)
| | - Jacob A Schwarz
- Vanderbilt Center for Arrhythmia Research and Therapeutics, Division of Clinical Pharmacology, Vanderbilt University Medical Center, Nashville, Tennessee (A.G., T.Q.D. K.K., D.J.B., P.A.R., B.C.K.); Vanderbilt Department of Chemistry and Institute of Chemical Biology, Vanderbilt University, Nashville, Tennessee (M.P.T., A.N.S., J.N.J.); Pharmaceutical Sciences Research Center, Lipscomb University College of Pharmacy, Nashville, Tennessee (W.S.A.); Department of Biochemistry, Molecular Biology, and Biophysics, University of Minnesota, Minneapolis, Minnesota (J.A.S., R.L.C., R.T.R.); and School of Biomedical Sciences and Pharmacy, University of Newcastle and Hunter Medical Research Institute, Callaghan, NSW 2308, Australia (D.R.L.)
| | - Madelaine P Thorpe
- Vanderbilt Center for Arrhythmia Research and Therapeutics, Division of Clinical Pharmacology, Vanderbilt University Medical Center, Nashville, Tennessee (A.G., T.Q.D. K.K., D.J.B., P.A.R., B.C.K.); Vanderbilt Department of Chemistry and Institute of Chemical Biology, Vanderbilt University, Nashville, Tennessee (M.P.T., A.N.S., J.N.J.); Pharmaceutical Sciences Research Center, Lipscomb University College of Pharmacy, Nashville, Tennessee (W.S.A.); Department of Biochemistry, Molecular Biology, and Biophysics, University of Minnesota, Minneapolis, Minnesota (J.A.S., R.L.C., R.T.R.); and School of Biomedical Sciences and Pharmacy, University of Newcastle and Hunter Medical Research Institute, Callaghan, NSW 2308, Australia (D.R.L.)
| | - Daniel J Blackwell
- Vanderbilt Center for Arrhythmia Research and Therapeutics, Division of Clinical Pharmacology, Vanderbilt University Medical Center, Nashville, Tennessee (A.G., T.Q.D. K.K., D.J.B., P.A.R., B.C.K.); Vanderbilt Department of Chemistry and Institute of Chemical Biology, Vanderbilt University, Nashville, Tennessee (M.P.T., A.N.S., J.N.J.); Pharmaceutical Sciences Research Center, Lipscomb University College of Pharmacy, Nashville, Tennessee (W.S.A.); Department of Biochemistry, Molecular Biology, and Biophysics, University of Minnesota, Minneapolis, Minnesota (J.A.S., R.L.C., R.T.R.); and School of Biomedical Sciences and Pharmacy, University of Newcastle and Hunter Medical Research Institute, Callaghan, NSW 2308, Australia (D.R.L.)
| | - Paxton A Ritschel
- Vanderbilt Center for Arrhythmia Research and Therapeutics, Division of Clinical Pharmacology, Vanderbilt University Medical Center, Nashville, Tennessee (A.G., T.Q.D. K.K., D.J.B., P.A.R., B.C.K.); Vanderbilt Department of Chemistry and Institute of Chemical Biology, Vanderbilt University, Nashville, Tennessee (M.P.T., A.N.S., J.N.J.); Pharmaceutical Sciences Research Center, Lipscomb University College of Pharmacy, Nashville, Tennessee (W.S.A.); Department of Biochemistry, Molecular Biology, and Biophysics, University of Minnesota, Minneapolis, Minnesota (J.A.S., R.L.C., R.T.R.); and School of Biomedical Sciences and Pharmacy, University of Newcastle and Hunter Medical Research Institute, Callaghan, NSW 2308, Australia (D.R.L.)
| | - Abigail N Smith
- Vanderbilt Center for Arrhythmia Research and Therapeutics, Division of Clinical Pharmacology, Vanderbilt University Medical Center, Nashville, Tennessee (A.G., T.Q.D. K.K., D.J.B., P.A.R., B.C.K.); Vanderbilt Department of Chemistry and Institute of Chemical Biology, Vanderbilt University, Nashville, Tennessee (M.P.T., A.N.S., J.N.J.); Pharmaceutical Sciences Research Center, Lipscomb University College of Pharmacy, Nashville, Tennessee (W.S.A.); Department of Biochemistry, Molecular Biology, and Biophysics, University of Minnesota, Minneapolis, Minnesota (J.A.S., R.L.C., R.T.R.); and School of Biomedical Sciences and Pharmacy, University of Newcastle and Hunter Medical Research Institute, Callaghan, NSW 2308, Australia (D.R.L.)
| | - Robyn T Rebbeck
- Vanderbilt Center for Arrhythmia Research and Therapeutics, Division of Clinical Pharmacology, Vanderbilt University Medical Center, Nashville, Tennessee (A.G., T.Q.D. K.K., D.J.B., P.A.R., B.C.K.); Vanderbilt Department of Chemistry and Institute of Chemical Biology, Vanderbilt University, Nashville, Tennessee (M.P.T., A.N.S., J.N.J.); Pharmaceutical Sciences Research Center, Lipscomb University College of Pharmacy, Nashville, Tennessee (W.S.A.); Department of Biochemistry, Molecular Biology, and Biophysics, University of Minnesota, Minneapolis, Minnesota (J.A.S., R.L.C., R.T.R.); and School of Biomedical Sciences and Pharmacy, University of Newcastle and Hunter Medical Research Institute, Callaghan, NSW 2308, Australia (D.R.L.)
| | - Wendell S Akers
- Vanderbilt Center for Arrhythmia Research and Therapeutics, Division of Clinical Pharmacology, Vanderbilt University Medical Center, Nashville, Tennessee (A.G., T.Q.D. K.K., D.J.B., P.A.R., B.C.K.); Vanderbilt Department of Chemistry and Institute of Chemical Biology, Vanderbilt University, Nashville, Tennessee (M.P.T., A.N.S., J.N.J.); Pharmaceutical Sciences Research Center, Lipscomb University College of Pharmacy, Nashville, Tennessee (W.S.A.); Department of Biochemistry, Molecular Biology, and Biophysics, University of Minnesota, Minneapolis, Minnesota (J.A.S., R.L.C., R.T.R.); and School of Biomedical Sciences and Pharmacy, University of Newcastle and Hunter Medical Research Institute, Callaghan, NSW 2308, Australia (D.R.L.)
| | - Razvan L Cornea
- Vanderbilt Center for Arrhythmia Research and Therapeutics, Division of Clinical Pharmacology, Vanderbilt University Medical Center, Nashville, Tennessee (A.G., T.Q.D. K.K., D.J.B., P.A.R., B.C.K.); Vanderbilt Department of Chemistry and Institute of Chemical Biology, Vanderbilt University, Nashville, Tennessee (M.P.T., A.N.S., J.N.J.); Pharmaceutical Sciences Research Center, Lipscomb University College of Pharmacy, Nashville, Tennessee (W.S.A.); Department of Biochemistry, Molecular Biology, and Biophysics, University of Minnesota, Minneapolis, Minnesota (J.A.S., R.L.C., R.T.R.); and School of Biomedical Sciences and Pharmacy, University of Newcastle and Hunter Medical Research Institute, Callaghan, NSW 2308, Australia (D.R.L.)
| | - Derek R Laver
- Vanderbilt Center for Arrhythmia Research and Therapeutics, Division of Clinical Pharmacology, Vanderbilt University Medical Center, Nashville, Tennessee (A.G., T.Q.D. K.K., D.J.B., P.A.R., B.C.K.); Vanderbilt Department of Chemistry and Institute of Chemical Biology, Vanderbilt University, Nashville, Tennessee (M.P.T., A.N.S., J.N.J.); Pharmaceutical Sciences Research Center, Lipscomb University College of Pharmacy, Nashville, Tennessee (W.S.A.); Department of Biochemistry, Molecular Biology, and Biophysics, University of Minnesota, Minneapolis, Minnesota (J.A.S., R.L.C., R.T.R.); and School of Biomedical Sciences and Pharmacy, University of Newcastle and Hunter Medical Research Institute, Callaghan, NSW 2308, Australia (D.R.L.)
| | - Jeffrey N Johnston
- Vanderbilt Center for Arrhythmia Research and Therapeutics, Division of Clinical Pharmacology, Vanderbilt University Medical Center, Nashville, Tennessee (A.G., T.Q.D. K.K., D.J.B., P.A.R., B.C.K.); Vanderbilt Department of Chemistry and Institute of Chemical Biology, Vanderbilt University, Nashville, Tennessee (M.P.T., A.N.S., J.N.J.); Pharmaceutical Sciences Research Center, Lipscomb University College of Pharmacy, Nashville, Tennessee (W.S.A.); Department of Biochemistry, Molecular Biology, and Biophysics, University of Minnesota, Minneapolis, Minnesota (J.A.S., R.L.C., R.T.R.); and School of Biomedical Sciences and Pharmacy, University of Newcastle and Hunter Medical Research Institute, Callaghan, NSW 2308, Australia (D.R.L.)
| | - Bjorn C Knollmann
- Vanderbilt Center for Arrhythmia Research and Therapeutics, Division of Clinical Pharmacology, Vanderbilt University Medical Center, Nashville, Tennessee (A.G., T.Q.D. K.K., D.J.B., P.A.R., B.C.K.); Vanderbilt Department of Chemistry and Institute of Chemical Biology, Vanderbilt University, Nashville, Tennessee (M.P.T., A.N.S., J.N.J.); Pharmaceutical Sciences Research Center, Lipscomb University College of Pharmacy, Nashville, Tennessee (W.S.A.); Department of Biochemistry, Molecular Biology, and Biophysics, University of Minnesota, Minneapolis, Minnesota (J.A.S., R.L.C., R.T.R.); and School of Biomedical Sciences and Pharmacy, University of Newcastle and Hunter Medical Research Institute, Callaghan, NSW 2308, Australia (D.R.L.)
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15
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Jungbluth H, Famili DT, Helmich RC, Previtali S, Voermans NC. "RYR1 and the cerebellum": scientific commentary on "Defective Cerebellar Ryanodine Receptor Type 1 and Endoplasmic Reticulum Calcium 'Leak' in Tremor Pathophysiology". Acta Neuropathol 2024; 147:33. [PMID: 38326582 PMCID: PMC10850253 DOI: 10.1007/s00401-024-02687-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 01/05/2024] [Accepted: 01/05/2024] [Indexed: 02/09/2024]
Affiliation(s)
- Heinz Jungbluth
- Department of Paediatric Neurology, Neuromuscular Service, Evelina London Children's Hospital, Guy's and St. Thomas' Hospital NHS Foundation Trust, Children's Neurosciences Centre, F02 - Becket House, Lambeth Palace Road, London, SE1 7EU, UK.
- Randall Centre for Cell and Molecular Biophysics, Muscle Signalling Section, Faculty of Life Sciences and Medicine (FoLSM), King's College London, London, UK.
| | - Dennis T Famili
- Department of Paediatric Neurology, Neuromuscular Service, Evelina London Children's Hospital, Guy's and St. Thomas' Hospital NHS Foundation Trust, Children's Neurosciences Centre, F02 - Becket House, Lambeth Palace Road, London, SE1 7EU, UK
| | - Rick C Helmich
- Department of Neurology, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Stefano Previtali
- Neuromuscular Repair Unit, Division of Neuroscience, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Nicol C Voermans
- Department of Neurology, Radboud University Medical Centre, Nijmegen, The Netherlands
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16
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Mundiña-Weilenmann C. Seeking for Regulatory Mechanisms of Phospholamban Expression. Circ Res 2024; 134:266-268. [PMID: 38300986 DOI: 10.1161/circresaha.124.324109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Affiliation(s)
- Cecilia Mundiña-Weilenmann
- Centro de Investigaciones Cardiovasculares, CCT-CONICET La Plata, Cátedra de Fisiología y Física Biológica, Facultad de Ciencias Médicas, Universidad Nacional de La Plata, Argentina
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17
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Ibneeva L, Singh SP, Sinha A, Eski SE, Wehner R, Rupp L, Kovtun I, Pérez-Valencia JA, Gerbaulet A, Reinhardt S, Wobus M, von Bonin M, Sancho J, Lund F, Dahl A, Schmitz M, Bornhäuser M, Chavakis T, Wielockx B, Grinenko T. CD38 promotes hematopoietic stem cell dormancy. PLoS Biol 2024; 22:e3002517. [PMID: 38422172 DOI: 10.1371/journal.pbio.3002517] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 03/12/2024] [Accepted: 01/24/2024] [Indexed: 03/02/2024] Open
Abstract
A subpopulation of deeply quiescent, so-called dormant hematopoietic stem cells (dHSCs) resides at the top of the hematopoietic hierarchy and serves as a reserve pool for HSCs. The state of dormancy protects the HSC pool from exhaustion throughout life; however, excessive dormancy may prevent an efficient response to hematological stresses. Despite the significance of dHSCs, the mechanisms maintaining their dormancy remain elusive. Here, we identify CD38 as a novel and broadly applicable surface marker for the enrichment of murine dHSCs. We demonstrate that cyclic adenosine diphosphate ribose (cADPR), the product of CD38 cyclase activity, regulates the expression of the transcription factor c-Fos by increasing the release of Ca2+ from the endoplasmic reticulum (ER). Subsequently, we uncover that c-Fos induces the expression of the cell cycle inhibitor p57Kip2 to drive HSC dormancy. Moreover, we found that CD38 ecto-enzymatic activity at the neighboring CD38-positive cells can promote human HSC quiescence. Together, CD38/cADPR/Ca2+/c-Fos/p57Kip2 axis maintains HSC dormancy. Pharmacological manipulations of this pathway can provide new strategies to improve the success of stem cell transplantation and blood regeneration after injury or disease.
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Affiliation(s)
- Liliia Ibneeva
- Institute for Clinical Chemistry and Laboratory Medicine, University Hospital and Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
| | | | - Anupam Sinha
- Institute for Clinical Chemistry and Laboratory Medicine, University Hospital and Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
| | - Sema Elif Eski
- IRIBHM, Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Rebekka Wehner
- Institute for Immunology, Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
- National Center for Tumor Diseases (NCT), Partner Site Dresden, Dresden, Germany
- German Cancer Consortium (DKTK), Partner Site Dresden, and German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Luise Rupp
- Institute for Immunology, Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Iryna Kovtun
- Institute for Clinical Chemistry and Laboratory Medicine, University Hospital and Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
| | - Juan Alberto Pérez-Valencia
- Institute for Clinical Chemistry and Laboratory Medicine, University Hospital and Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
| | - Alexander Gerbaulet
- Institute for Immunology, Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Susanne Reinhardt
- DRESDEN-concept Genome Center, Center for Molecular and Cellular Bioengineering, Technische Universität Dresden, Dresden, Germany
| | - Manja Wobus
- German Cancer Consortium (DKTK), Partner Site Dresden, and German Cancer Research Center (DKFZ), Heidelberg, Germany
- Medical Clinic I, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Malte von Bonin
- Medical Clinic I, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Jaime Sancho
- Instituto de Parasitología y Biomedicina "López-Neyra" CSIC, Granada, Spain
| | - Frances Lund
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - Andreas Dahl
- DRESDEN-concept Genome Center, Center for Molecular and Cellular Bioengineering, Technische Universität Dresden, Dresden, Germany
| | - Marc Schmitz
- Institute for Immunology, Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
- National Center for Tumor Diseases (NCT), Partner Site Dresden, Dresden, Germany
- German Cancer Consortium (DKTK), Partner Site Dresden, and German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Martin Bornhäuser
- National Center for Tumor Diseases (NCT), Partner Site Dresden, Dresden, Germany
- German Cancer Consortium (DKTK), Partner Site Dresden, and German Cancer Research Center (DKFZ), Heidelberg, Germany
- Medical Clinic I, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Triantafyllos Chavakis
- Institute for Clinical Chemistry and Laboratory Medicine, University Hospital and Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
| | - Ben Wielockx
- Institute for Clinical Chemistry and Laboratory Medicine, University Hospital and Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
- Experimental Center, Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
| | - Tatyana Grinenko
- Institute for Clinical Chemistry and Laboratory Medicine, University Hospital and Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Jiao Tong University School of Medicine, Shanghai, China
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18
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Flück M, Sanchez C, Jacquemond V, Berthier C, Giraud MN, Jacko D, Bersiner K, Gehlert S, Baan G, Jaspers RT. Enhanced capacity for CaMKII signaling mitigates calcium release related contractile fatigue with high intensity exercise. Biochim Biophys Acta Mol Cell Res 2024; 1871:119610. [PMID: 37913845 DOI: 10.1016/j.bbamcr.2023.119610] [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] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Revised: 09/27/2023] [Accepted: 10/18/2023] [Indexed: 11/03/2023]
Abstract
BACKGROUND We tested whether enhancing the capacity for calcium/calmodulin-dependent protein kinase type II (CaMKII) signaling would delay fatigue of excitation-induced calcium release and improve contractile characteristics of skeletal muscle during fatiguing exercise. METHODS Fast and slow type muscle, gastrocnemius medialis (GM) and soleus (SOL), of rats and mouse interosseus (IO) muscle fibers, were transfected with pcDNA3-based plasmids for rat α and β CaMKII or empty controls. Levels of CaMKII, its T287-phosphorylation (pT287-CaMKII), and phosphorylation of components of calcium release and re-uptake, ryanodine receptor 1 (pS2843-RyR1) and phospholamban (pT17-PLN), were quantified biochemically. Sarcoplasmic calcium in transfected muscle fibers was monitored microscopically during trains of electrical excitation based on Fluo-4 FF fluorescence (n = 5-7). Effects of low- (n = 6) and high- (n = 8) intensity exercise on pT287-CaMKII and contractile characteristics were studied in situ. RESULTS Co-transfection with αCaMKII-pcDNA3/βCaMKII-pcDNA3 increased α and βCaMKII levels in SOL (+45.8 %, +250.5 %) and GM (+40.4 %, +89.9 %) muscle fibers compared to control transfection. High-intensity exercise increased pT287-βCaMKII and pS2843-RyR1 levels in SOL (+269 %, +151 %) and GM (+354 %, +119 %), but decreased pT287-αCaMKII and p17-PLN levels in GM compared to SOL (-76 % vs. +166 %; 0 % vs. +128 %). α/β CaMKII overexpression attenuated the decline of calcium release in muscle fibers with repeated excitation, and mitigated exercise-induced deterioration of rates in force production, and passive force, in a muscle-dependent manner, in correlation with pS2843-RyR1 and pT17-PLN levels (|r| > 0.7). CONCLUSION Enhanced capacity for α/β CaMKII signaling improves fatigue-resistance of active and passive contractile muscle properties in association with RyR1- and PLN-related improvements in sarcoplasmic calcium release.
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Affiliation(s)
- Martin Flück
- Department of Medicine, University of Fribourg, Switzerland; Manchester Metropolitan University, United Kingdom.
| | - Colline Sanchez
- University of Lyon, Université Claude Bernard Lyon 1, CNRS UMR-5261, INSERM U-1315, Institut NeuroMyoGène - Pathophysiology and Genetics of Neuron and Muscle, 69008 Lyon, France
| | - Vincent Jacquemond
- University of Lyon, Université Claude Bernard Lyon 1, CNRS UMR-5261, INSERM U-1315, Institut NeuroMyoGène - Pathophysiology and Genetics of Neuron and Muscle, 69008 Lyon, France
| | - Christine Berthier
- University of Lyon, Université Claude Bernard Lyon 1, CNRS UMR-5261, INSERM U-1315, Institut NeuroMyoGène - Pathophysiology and Genetics of Neuron and Muscle, 69008 Lyon, France
| | | | - Daniel Jacko
- Department for Molecular and Cellular Sports Medicine, Institute for Cardiovascular Research and Sports Medicine, German Sport University Cologne, Germany
| | - Käthe Bersiner
- Department of Biosciences of Sports, Institute for Sports Sciences, University of Hildesheim, Hildesheim, Germany
| | - Sebastian Gehlert
- Department of Biosciences of Sports, Institute for Sports Sciences, University of Hildesheim, Hildesheim, Germany
| | - Guus Baan
- Laboratory for Myology, Department of Human Movement Sciences, Faculty of Behavioral and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, 1081 HZ Amsterdam, the Netherlands
| | - Richard T Jaspers
- Laboratory for Myology, Department of Human Movement Sciences, Faculty of Behavioral and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, 1081 HZ Amsterdam, the Netherlands
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19
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Wegener JW, Mitronova GY, ElShareif L, Quentin C, Belov V, Pochechueva T, Hasenfuss G, Ackermann L, Lehnart SE. A dual-targeted drug inhibits cardiac ryanodine receptor Ca 2+ leak but activates SERCA2a Ca 2+ uptake. Life Sci Alliance 2024; 7:e202302278. [PMID: 38012000 PMCID: PMC10681910 DOI: 10.26508/lsa.202302278] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 11/16/2023] [Accepted: 11/17/2023] [Indexed: 11/29/2023] Open
Abstract
In the heart, genetic or acquired mishandling of diastolic [Ca2+] by ryanodine receptor type 2 (RyR2) overactivity correlates with risks of arrhythmia and sudden cardiac death. Strategies to avoid these risks include decrease of Ca2+ release by drugs modulating RyR2 activity or increase in Ca2+ uptake by drugs modulating SR Ca2+ ATPase (SERCA2a) activity. Here, we combine these strategies by developing experimental compounds that act simultaneously on both processes. Our screening efforts identified the new 1,4-benzothiazepine derivative GM1869 as a promising compound. Consequently, we comparatively studied the effects of the known RyR2 modulators Dantrolene and S36 together with GM1869 on RyR2 and SERCA2a activity in cardiomyocytes from wild type and arrhythmia-susceptible RyR2R2474S/+ mice by confocal live-cell imaging. All drugs reduced RyR2-mediated Ca2+ spark frequency but only GM1869 accelerated SERCA2a-mediated decay of Ca2+ transients in murine and human cardiomyocytes. Our data indicate that S36 and GM1869 are more suitable than dantrolene to directly modulate RyR2 activity, especially in RyR2R2474S/+ mice. Remarkably, GM1869 may represent a new dual-acting lead compound for maintenance of diastolic [Ca2+].
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Affiliation(s)
- Jörg W Wegener
- Department of Cardiology and Pulmonology, Heart Research Center Göttingen, University Medical Center of Göttingen (UMG), Göttingen, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Göttingen, Göttingen, Germany
| | - Gyuzel Y Mitronova
- Department of NanoBiophotonics, Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Göttingen, Göttingen, Germany
| | - Lina ElShareif
- Department of Cardiology and Pulmonology, Heart Research Center Göttingen, University Medical Center of Göttingen (UMG), Göttingen, Germany
| | - Christine Quentin
- Department of NanoBiophotonics, Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany
| | - Vladimir Belov
- Department of NanoBiophotonics, Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany
| | - Tatiana Pochechueva
- Department of Cardiology and Pulmonology, Heart Research Center Göttingen, University Medical Center of Göttingen (UMG), Göttingen, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Göttingen, Göttingen, Germany
| | - Gerd Hasenfuss
- Department of Cardiology and Pulmonology, Heart Research Center Göttingen, University Medical Center of Göttingen (UMG), Göttingen, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Göttingen, Göttingen, Germany
| | - Lutz Ackermann
- Georg-August University of Göttingen, Institute of Organic and Biomolecular Chemistry, Göttingen, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Göttingen, Göttingen, Germany
| | - Stephan E Lehnart
- Department of Cardiology and Pulmonology, Heart Research Center Göttingen, University Medical Center of Göttingen (UMG), Göttingen, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Göttingen, Göttingen, Germany
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20
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Chirasani VR, Elferdink M, Kral M, Carter JS, Heitmann S, Meissner G, Yamaguchi N. Structural and functional interactions between the EF hand domain and S2-S3 loop in the type-1 ryanodine receptor ion channel. J Biol Chem 2024; 300:105606. [PMID: 38159862 PMCID: PMC10832476 DOI: 10.1016/j.jbc.2023.105606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 12/04/2023] [Accepted: 12/22/2023] [Indexed: 01/03/2024] Open
Abstract
Previous cryo-electron micrographs suggested that the skeletal muscle Ca2+ release channel, ryanodine receptor (RyR)1, is regulated by intricate interactions between the EF hand Ca2+ binding domain and the cytosolic loop (S2-S3 loop). However, the precise molecular details of these interactions and functional consequences of the interactions remain elusive. Here, we used molecular dynamics simulations to explore the specific amino acid pairs involved in hydrogen bond interactions within the EF hand-S2-S3 loop interface. Our simulations unveiled two key interactions: (1) K4101 (EF hand) with D4730 (S2-S3 loop) and (2) E4075, Q4078, and D4079 (EF hand) with R4736 (S2-S3 loop). To probe the functional significance of these interactions, we constructed mutant RyR1 complementary DNAs and expressed them in HEK293 cells for [3H]ryanodine binding assays. Our results demonstrated that mutations in the EF hand, specifically K4101E and K4101M, resulted in reduced affinities for Ca2+/Mg2+-dependent inhibitions. Interestingly, the K4101E mutation increased the affinity for Ca2+-dependent activation. Conversely, mutations in the S2-S3 loop, D4730K and D4730N, did not significantly change the affinities for Ca2+/Mg2+-dependent inhibitions. Our previous finding that skeletal disease-associated RyR1 mutations, R4736Q and R4736W, impaired Ca2+-dependent inhibition, is consistent with the current results. In silico mutagenesis analysis aligned with our functional data, indicating altered hydrogen bonding patterns upon mutations. Taken together, our findings emphasize the critical role of the EF hand-S2-S3 loop interaction in Ca2+/Mg2+-dependent inhibition of RyR1 and provide insights into potential therapeutic strategies targeting this domain interaction for the treatment of skeletal myopathies.
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Affiliation(s)
- Venkat R Chirasani
- Department of Biochemistry and Biophysics, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA; R.L. Juliano Structural Bioinformatics Core, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Millar Elferdink
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, South Carolina, USA; Cardiac Signaling Center of University of South Carolina, Medical University of South Carolina and Clemson University, Charleston, South Carolina, USA; College of Charleston Honors College, Charleston, South Carolina, USA
| | - MacKenzie Kral
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, South Carolina, USA; Cardiac Signaling Center of University of South Carolina, Medical University of South Carolina and Clemson University, Charleston, South Carolina, USA; College of Charleston Honors College, Charleston, South Carolina, USA
| | - Jordan S Carter
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, South Carolina, USA; Cardiac Signaling Center of University of South Carolina, Medical University of South Carolina and Clemson University, Charleston, South Carolina, USA
| | - Savannah Heitmann
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, South Carolina, USA; Cardiac Signaling Center of University of South Carolina, Medical University of South Carolina and Clemson University, Charleston, South Carolina, USA
| | - Gerhard Meissner
- Department of Biochemistry and Biophysics, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Naohiro Yamaguchi
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, South Carolina, USA; Cardiac Signaling Center of University of South Carolina, Medical University of South Carolina and Clemson University, Charleston, South Carolina, USA.
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21
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Yao J, Hua X, Huo W, Xiao L, Wang Y, Tang Q, Valdivia CR, Valdivia HH, Dong W, Xiao L. The Effect of Acidic Residues on the Binding between Opicalcin1 and Ryanodine Receptor from the Structure-Functional Analysis. J Nat Prod 2024; 87:104-112. [PMID: 38128916 PMCID: PMC10825818 DOI: 10.1021/acs.jnatprod.3c00821] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 11/26/2023] [Accepted: 11/26/2023] [Indexed: 12/23/2023]
Abstract
Calcin is a group ligand with high affinity and specificity for the ryanodine receptors (RyRs). Little is known about the effect of its acidic residues on the spacial structure as well as the interaction with RyRs. We screened the opicalcin1 acidic mutants and investigated the effect of mutation on activity. The results indicated that all acidic mutants maintained the structural features, but their surface charge distribution underwent significant changes. Molecular docking and dynamics simulations were used to analyze the interaction between opicalcin1 mutants and RyRs, which demonstrated that all opicalcin1 mutants effectively bound to the channel domain of RyR1. This stable binding induced a pronounced asymmetry in the structure of the RyR tetramer, exhibiting a high degree of structural dissimilarity. [3H]Ryanodine binding to RyR1 was enhanced in D2A and D15A, which was similar to opicalcin1, but that effect was suppressed in E12A and E29A and reversed for the DE-4A, thereby inhibiting ryanodine binding. Opicalcin1 and DE-4A also exhibited the ability to form stable docking structures with RyR2. Acidic residues play a crucial role in the structure of calcin and its functional interaction with RyRs that is beneficial for the calcin optimization to develop more active peptide lead compounds for RyR-related diseases.
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Affiliation(s)
- Jinchi Yao
- School
of Life Sciences, Liaoning Normal University, Dalian116081, China
- Department
of Occupational and Environmental Health, Faculty of Naval Medicine, Naval Medical University (Second Military Medical
University), Shanghai 200433, China
| | - Xiaoyu Hua
- Department
of Occupational and Environmental Health, Faculty of Naval Medicine, Naval Medical University (Second Military Medical
University), Shanghai 200433, China
| | - Wenjing Huo
- The
305 Hospital of PLA, Beijing 100017, China
| | - Li Xiao
- Department
of Medicine and Cardiovascular Research Center, University of Wisconsin-Madison School of Medicine and Public Health, Madison, Wisconsin 53188, United States
- Department
of Forensic Toxicological Analysis, West China School of Basic Medical
Sciences and Forensic Medicine, Sichuan
University, Chengdu 610017, China
| | - Yongfang Wang
- Department
of Occupational and Environmental Health, Faculty of Naval Medicine, Naval Medical University (Second Military Medical
University), Shanghai 200433, China
| | - Qinglong Tang
- Central
Medical District of Chinese, PLA General Hospital, Beijing 100120, China
| | - Carmen R. Valdivia
- Department
of Medicine and Cardiovascular Research Center, University of Wisconsin-Madison School of Medicine and Public Health, Madison, Wisconsin 53188, United States
| | - Héctor H. Valdivia
- Department
of Medicine and Cardiovascular Research Center, University of Wisconsin-Madison School of Medicine and Public Health, Madison, Wisconsin 53188, United States
| | - Weibing Dong
- School
of Life Sciences, Liaoning Normal University, Dalian116081, China
| | - Liang Xiao
- Department
of Occupational and Environmental Health, Faculty of Naval Medicine, Naval Medical University (Second Military Medical
University), Shanghai 200433, China
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22
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Zhang X, Zhou Y, Chang X, Wu Q, Liu Z, Liu R. Tongyang Huoxue decoction (TYHX) ameliorating hypoxia/reoxygenation-induced disequilibrium of calcium homeostasis via regulating β-tubulin in rabbit sinoatrial node cells. J Ethnopharmacol 2024; 318:117006. [PMID: 37544340 DOI: 10.1016/j.jep.2023.117006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 07/24/2023] [Accepted: 08/04/2023] [Indexed: 08/08/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE β-tubulin is a skeletal protein of sinoatrial node cells (SANCs) that maintains the physiological structure of SANCs and inhibits calcium overload. Tongyang Huoxue decoction (TYHX) is widely used to treat sick sinus syndrome (SSS) owing to its effects on calcium channels regulation and SANCs protection. AIM OF THE STUDY This study focuses on the mechanism of TYHX in improving the hypoxia/reoxygenation (H/R)-induced disequilibrium of calcium homeostasis in SANCs via regulating β-tubulin. MATERIALS AND METHODS Real-Time PCR (RT-PCR) and Western Blot were adopted to detect the mRNA and protein expression levels of calcium channel regulatory molecules. Laser confocal method was employed to examine β-tubulin structure and fluorescence expression levels in SANCs, as well as calcium wave and calcium release levels. RESULTS It was found that the fluorescence expression level decreased and the β-tubulin structure of SANCs was damaged after H/R treatment. The mRNA and protein expression levels of SERCA2a/CaV1.3/NCX and β-tubulin decreased, while the mRNA and protein expression of RyR2 increased. The results of calcium wave and calcium transient experiments showed that the fluorescence expression level of Ca2+ increased and calcium overload occurred in SANCs. After treatment with TYHX, the mRNA and protein expression levels of SERCA2a/CaV1.3/NCX and β-tubulin increased, while the mRNA and protein expression levels of RyR2 decreased and the cell structure was restored. Interestingly, the regulation of TYHX on calcium homeostasis was further enhanced after Ad-β-tubulin treatment and counteracted after siRNA-β-tubulin treatment. These results suggest that TYHX could maintain calcium homeostasis via regulating β-tubulin, thus protecting against H/R-induced SANCs injury, which may be a new target for SSS treatment.
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Affiliation(s)
- Xinai Zhang
- Department of Cardiovascular, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yutong Zhou
- Department of Cardiovascular, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Xing Chang
- Department of Cardiovascular, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Qiaomin Wu
- Department of Cardiovascular, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Zhiming Liu
- Department of Cardiovascular, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China.
| | - Riuxiu Liu
- Department of Cardiovascular, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China.
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23
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Hidalgo C, Paula-Lima A. RyR-mediated calcium release in hippocampal health and disease. Trends Mol Med 2024; 30:25-36. [PMID: 37957056 DOI: 10.1016/j.molmed.2023.10.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 10/16/2023] [Accepted: 10/20/2023] [Indexed: 11/15/2023]
Abstract
Hippocampal synaptic plasticity is widely considered the cellular basis of learning and spatial memory processes. This article highlights the central role of Ca2+ release from the endoplasmic reticulum (ER) in hippocampal synaptic plasticity and hippocampus-dependent memory in health and disease. The key participation of ryanodine receptor (RyR) channels, which are the principal Ca2+ release channels expressed in the hippocampus, in these processes is emphasized. It is proposed that the increased neuronal oxidative tone displayed by hippocampal neurons during aging or Alzheimer's disease (AD) leads to excessive activation of RyR-mediated Ca2+ release, a process that is highly redox-sensitive, and that this abnormal response contributes to and aggravates these deleterious conditions.
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Affiliation(s)
- Cecilia Hidalgo
- Biomedical Neuroscience Institute and Department of Neurosciences, Faculty of Medicine, Universidad de Chile, Santiago 8380000, Chile; Physiology and Biophysics Program, Institute of Biomedical Sciences and Center for Exercise, Metabolism, and Cancer Studies, Faculty of Medicine, Universidad de Chile, Santiago 8380000, Chile.
| | - Andrea Paula-Lima
- Biomedical Neuroscience Institute and Department of Neurosciences, Faculty of Medicine, Universidad de Chile, Santiago 8380000, Chile; Institute for Research in Dental Sciences (ICOD), Faculty of Dentistry, Universidad de Chile, Santiago 8380544, Chile.
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24
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Piao L, Fang YH, Fisher M, Hamanaka RB, Ousta A, Wu R, Mutlu GM, Garcia AJ, Archer SL, Sharp WW. Dynamin-related protein 1 is a critical regulator of mitochondrial calcium homeostasis during myocardial ischemia/reperfusion injury. FASEB J 2024; 38:e23379. [PMID: 38133921 DOI: 10.1096/fj.202301040rr] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 11/17/2023] [Accepted: 12/04/2023] [Indexed: 12/23/2023]
Abstract
Dynamin-related protein 1 (Drp1) is a cytosolic GTPase protein that when activated translocates to the mitochondria, meditating mitochondrial fission and increasing reactive oxygen species (ROS) in cardiomyocytes. Drp1 has shown promise as a therapeutic target for reducing cardiac ischemia/reperfusion (IR) injury; however, the lack of specificity of some small molecule Drp1 inhibitors and the reliance on the use of Drp1 haploinsufficient hearts from older mice have left the role of Drp1 in IR in question. Here, we address these concerns using two approaches, using: (a) short-term (3 weeks), conditional, cardiomyocyte-specific, Drp1 knockout (KO) and (b) a novel, highly specific Drp1 GTPase inhibitor, Drpitor1a. Short-term Drp1 KO mice exhibited preserved exercise capacity and cardiac contractility, and their isolated cardiac mitochondria demonstrated increased mitochondrial complex 1 activity, respiratory coupling, and calcium retention capacity compared to controls. When exposed to IR injury in a Langendorff perfusion system, Drp1 KO hearts had preserved contractility, decreased reactive oxygen species (ROS), enhanced mitochondrial calcium capacity, and increased resistance to mitochondrial permeability transition pore (MPTP) opening. Pharmacological inhibition of Drp1 with Drpitor1a following ischemia, but before reperfusion, was as protective as Drp1 KO for cardiac function and mitochondrial calcium homeostasis. In contrast to the benefits of short-term Drp1 inhibition, prolonged Drp1 ablation (6 weeks) resulted in cardiomyopathy. Drp1 KO hearts were also associated with decreased ryanodine receptor 2 (RyR2) protein expression and pharmacological inhibition of the RyR2 receptor decreased ROS in post-IR hearts suggesting that changes in RyR2 may have a role in Drp1 KO mediated cardioprotection. We conclude that Drp1-mediated increases in myocardial ROS production and impairment of mitochondrial calcium handling are key mechanisms of IR injury. Short-term inhibition of Drp1 is a promising strategy to limit early myocardial IR injury which is relevant for the therapy of acute myocardial infarction, cardiac arrest, and heart transplantation.
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Affiliation(s)
- Lin Piao
- Section of Emergency Medicine, Department of Medicine, University of Chicago, Chicago, Illinois, USA
| | - Yong-Hu Fang
- Section of Emergency Medicine, Department of Medicine, University of Chicago, Chicago, Illinois, USA
| | - Michael Fisher
- Section of Emergency Medicine, Department of Medicine, University of Chicago, Chicago, Illinois, USA
| | - Robert B Hamanaka
- Section of Pulmonary and Critical Care, Department of Medicine, University of Chicago, Chicago, Illinois, USA
| | - Alaa Ousta
- Department of Emergency Medicine, Duke University, Durham, North Carolina, USA
| | - Rongxu Wu
- Section of Cardiology, Department of Medicine, University of Chicago, Chicago, Illinois, USA
| | - Gökhan M Mutlu
- Section of Pulmonary and Critical Care, Department of Medicine, University of Chicago, Chicago, Illinois, USA
- Institute for Integrative Physiology, University of Chicago, Chicago, Illinois, USA
| | - Alfredo J Garcia
- Section of Emergency Medicine, Department of Medicine, University of Chicago, Chicago, Illinois, USA
- Institute for Integrative Physiology, University of Chicago, Chicago, Illinois, USA
- The University of Chicago Neuroscience Institute, University of Chicago, Chicago, Illinois, USA
| | - Stephen L Archer
- Department of Medicine, Queen's University, Kingston, Ontario, Canada
| | - Willard W Sharp
- Section of Emergency Medicine, Department of Medicine, University of Chicago, Chicago, Illinois, USA
- Institute for Integrative Physiology, University of Chicago, Chicago, Illinois, USA
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25
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Kano R, Tabuchi A, Tanaka Y, Shirakawa H, Hoshino D, Poole DC, Kano Y. In vivo cytosolic H 2O 2 changes and Ca 2+ homeostasis in mouse skeletal muscle. Am J Physiol Regul Integr Comp Physiol 2024; 326:R43-R52. [PMID: 37899753 DOI: 10.1152/ajpregu.00152.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 09/21/2023] [Accepted: 10/20/2023] [Indexed: 10/31/2023]
Abstract
Hydrogen peroxide (H2O2) and calcium ions (Ca2+) are functional regulators of skeletal muscle contraction and metabolism. Although H2O2 is one of the activators of the type-1 ryanodine receptor (RyR1) in the Ca2+ release channel, the interdependence between H2O2 and Ca2+ dynamics remains unclear. This study tested the following hypotheses using an in vivo model of mouse tibialis anterior (TA) skeletal muscle. 1) Under resting conditions, elevated cytosolic H2O2 concentration ([H2O2]cyto) leads to a concentration-dependent increase in cytosolic Ca2+ concentration ([Ca2+]cyto) through its effect on RyR1; and 2) in hypoxia (cardiac arrest) and muscle contractions (electrical stimulation), increased [H2O2]cyto induces Ca2+ accumulation. Cytosolic H2O2 (HyPer7) and Ca2+ (Fura-2) dynamics were resolved by TA bioimaging in young C57BL/6J male mice under four conditions: 1) elevated exogenous H2O2; 2) cardiac arrest; 3) twitch (1 Hz, 60 s) contractions; and 4) tetanic (30 s) contractions. Exogenous H2O2 (0.1-100 mM) induced a concentration-dependent increase in [H2O2]cyto (+55% at 0.1 mM; +280% at 100 mM) and an increase in [Ca2+]cyto (+3% at 1.0 mM; +8% at 10 mM). This increase in [Ca2+]cyto was inhibited by pharmacological inhibition of RyR1 by dantrolene. Cardiac arrest-induced hypoxia increased [H2O2]cyto (+33%) and [Ca2+]cyto (+20%) 50 min postcardiac arrest. Compared with the exogenous 1.0 mM H2O2 condition, [H2O2]cyto after tetanic muscle contractions rose less than one-tenth as much, whereas [Ca2+]cyto was 4.7-fold higher. In conclusion, substantial increases in [H2O2]cyto levels evoke only modest Ca2+ accumulation via their effect on the sarcoplasmic reticulum RyR1. On the other hand, contrary to hypoxia secondary to cardiac arrest, increases in [H2O2]cyto from muscle contractions are small, indicating that H2O2 generation is unlikely to be a primary factor driving the significant Ca2+ accumulation after, especially tetanic, muscle contractions.NEW & NOTEWORTHY We developed an in vivo mouse myocyte H2O2 imaging model during exogenous H2O2 loading, ischemic hypoxia induced by cardiac arrest, and muscle contractions. In this study, the interrelationship between cytosolic H2O2 levels and Ca2+ homeostasis during muscle contraction and hypoxic conditions was revealed. These results contribute to the elucidation of the mechanisms of muscle fatigue and exercise adaptation.
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Affiliation(s)
- Ryotaro Kano
- Department of Engineering Science, Bioscience and Technology Program, University of Electro-Communications, Chofu, Japan
- Research Fellowship for Young Scientists, Japan Society for the Promotion of Science, Tokyo, Japan
| | - Ayaka Tabuchi
- Department of Engineering Science, Bioscience and Technology Program, University of Electro-Communications, Chofu, Japan
| | - Yoshinori Tanaka
- Department of Engineering Science, Bioscience and Technology Program, University of Electro-Communications, Chofu, Japan
| | - Hideki Shirakawa
- Department of Engineering Science, Bioscience and Technology Program, University of Electro-Communications, Chofu, Japan
| | - Daisuke Hoshino
- Department of Engineering Science, Bioscience and Technology Program, University of Electro-Communications, Chofu, Japan
- Center for Neuroscience and Biomedical Engineering, University of Electro-Communications, Chofu, Japan
| | - David C Poole
- Departments of Anatomy and Physiology and Kinesiology, Kansas State University, Manhattan, Kansas, United States
| | - Yutaka Kano
- Department of Engineering Science, Bioscience and Technology Program, University of Electro-Communications, Chofu, Japan
- Center for Neuroscience and Biomedical Engineering, University of Electro-Communications, Chofu, Japan
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26
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Cala SE, Carruthers NJ, Stemmer PM, Chen Z, Chen X. Activation of Ca 2+ transport in cardiac microsomes enriches functional sets of ER and SR proteins. Mol Cell Biochem 2024; 479:85-98. [PMID: 37036634 PMCID: PMC10786961 DOI: 10.1007/s11010-023-04708-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 03/12/2023] [Indexed: 04/11/2023]
Abstract
The importance of sarcoplasmic reticulum (SR) Ca2+-handling in heart has led to detailed understanding of Ca2+-release and re-uptake protein complexes, while less is known about other endoplasmic reticulum (ER) functions in the heart. To more fully understand cardiac SR and ER functions, we analyzed cardiac microsomes based on their increased density through the actions of the SR Ca2+-ATPase (SERCA) and the ryanodine receptor that are highly active in cardiomyocytes. Crude cardiac microsomal vesicles loaded with Ca oxalate produced two higher density subfractions, MedSR and HighSR. Proteins from 20.0 μg of MV, MedSR, and HighSR protein were fractionated using SDS-PAGE, then trypsinized from 20 separate gel pieces, and analyzed by LC-MS/MS to determine protein content. From 62,000 individual peptide spectra obtained, we identified 1105 different proteins, of which 354 were enriched ≥ 2.0-fold in SR fractions compared to the crude membrane preparation. Previously studied SR proteins were all enriched, as were proteins associated with canonical ER functions. Contractile, mitochondrial, and sarcolemmal proteins were not enriched. Comparing the levels of SERCA-positive SR proteins in MedSR versus HighSR vesicles produced a range of SR subfraction enrichments signifying differing levels of Ca2+ leak co-localized in the same membrane patch. All known junctional SR proteins were more enriched in MedSR, while canonical ER proteins were more enriched in HighSR membrane. Proteins constituting other putative ER/SR subdomains also exhibited average Esub enrichment values (mean ± S.D.) that spanned the range of possible Esub values, suggesting that functional sets of proteins are localized to the same areas of the ER/SR membrane. We conclude that active Ca2+ loading of cardiac microsomes, reflecting the combined activities of Ca2+ uptake by SERCA, and Ca2+ leak by RyR, permits evaluation of multiple functional ER/SR subdomains. Sets of proteins from these subdomains exhibited similar enrichment patterns across membrane subfractions, reflecting the relative levels of SERCA and RyR present within individual patches of cardiac ER and SR.
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Affiliation(s)
- Steven E Cala
- Department of Physiology, Wayne State University, Detroit, MI, 48201, USA.
| | | | - Paul M Stemmer
- Institute of Environmental Health Sciences, Wayne State University, Detroit, USA
| | - Zhenhui Chen
- Krannert Institute of Cardiology, Indiana University, Indianapolis, IN, USA
| | - Xuequn Chen
- Department of Physiology, Wayne State University, Detroit, MI, 48201, USA
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27
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Griffin JA, Li X, Lehmler HJ, Holland EB. Predicted versus observed activity of PCB mixtures toward the ryanodine receptor. Neurotoxicology 2024; 100:25-34. [PMID: 38065417 PMCID: PMC10842331 DOI: 10.1016/j.neuro.2023.12.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 11/15/2023] [Accepted: 12/04/2023] [Indexed: 12/19/2023]
Abstract
Non-dioxin-like polychlorinated biphenyls (NDL PCBs) alter the activity of the ryanodine receptor (RyR), and this activity is linked to developmental neurotoxicity. Most work to date has focused on the activity of single congeners rather than relevant mixtures. The current study assessed the RyR activity of single congeners or binary, tertiary, and complex PCB mixtures. Observed mixture activity was then compared to the expected activity calculated using the concentration addition (CA) model or a RyR-specific neurotoxic equivalency scheme (rNEQ). The predictions of the CA model were consistent with the observed activity of binary mixtures at the lower portion of the concentration-response curve, supporting the additivity of RyR1 active PCBs. Findings also show that minimally active congeners can compete for the RyR1 binding site, and congeners that do not activate the RyR1 do not interfere with the activity of a full agonist. Complex PCB mixtures that mimic PCB profiles detected in indoor air, fish tissue, and the serum of mothers and children activated the RyR1 and displayed similar efficacy and potency regardless of varying congener profiles. Neither the CA model nor the rNEQ perfectly predicted the observed activity of complex mixtures, but predictions were often within one magnitude of change from the observed response. Importantly, PCB mixtures approximating profiles found in environmental samples or human serum displayed RyR1 activity at concentrations reported in published research. The work presented will aid in the development of risk assessment platforms for NDL PCBs and similar compounds toward RyR1 activation and related neurotoxicity.
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Affiliation(s)
- Justin A Griffin
- Department of Biological Science, California State University of Long Beach, Long Beach, CA, USA
| | - Xueshu Li
- Department of Occupational and Environmental Health, College of Public Health, University of Iowa, Iowa City, IA, USA
| | - Hans-Joachim Lehmler
- Department of Occupational and Environmental Health, College of Public Health, University of Iowa, Iowa City, IA, USA
| | - Erika B Holland
- Department of Biological Science, California State University of Long Beach, Long Beach, CA, USA.
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28
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Zhou D, Zhang Y, Zhu M, Zhang X, Zhang X, Lv J, Tang W, Weng Q, Lin Y, Tong L, Zhong Z, Zhang Y, Zhang M, Lai M, Wang D. mROS‑calcium feedback loop promotes lethal ventricular arrhythmias and sudden cardiac death in early myocardial ischemia. Int J Mol Med 2024; 53:5. [PMID: 37997788 PMCID: PMC10712693 DOI: 10.3892/ijmm.2023.5329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 10/23/2023] [Indexed: 11/25/2023] Open
Abstract
Lethal ventricular arrhythmia‑sudden cardiac death (LVA‑SCD) occurs frequently during the early stage of myocardial ischemia (MI). However, the mechanism underlying higher LVA‑SCD incidence is still poorly understood. The present study aimed to explore the role of mitochondrial reactive oxygen species (mROS) and Ca2+ crosstalk in promoting LVA‑SCD in early MI. RyR2 S2814A mice and their wild‑type littermates were used. MitoTEMPO was applied to scavenge mitochondrial ROS (mROS). Mice were subjected to severe MI and the occurrence of LVA‑SCD was evaluated. Levels of mitochondrial ROS and calcium (mitoCa2+), cytosolic ROS (cytoROS), and calcium (cytoCa2+), RyR2 Ser‑2814 phosphorylation, CaMKII Met‑282 oxidation, mitochondrial membrane potential (MMP), and glutathione/oxidized glutathione (GSH/GSSG) ratio in the myocardia were detected. Dynamic changes in mROS after hypoxia were investigated using H9c2 cells. Moreover, the myocardial phosphoproteome was analyzed to explore the related mechanisms facilitating mROS‑Ca2+ crosstalk and LVA‑SCD. There was a high incidence (~33.9%) of LVA‑SCD in early MI. Mice who underwent SCD displayed notably elevated levels of myocardial ROS and mROS, and the latter was validated in H9c2 cells. These mice also demonstrated overloads of cytoplasmic and mitochondrial Ca2+, decreased MMP and reduced GSH/GSSG ratio, upregulated RyR2‑S2814 phosphorylation and CaMKII‑M282 oxidation and transient hyperphosphorylation of mitochondrial proteomes in the myocardium. mROS‑specific scavenging by a mitochondria‑targeted antioxidant agent (MitoTEMPO) corrected these SCD‑induced alterations. S2814A mice with a genetically inactivated CaMKII phosphorylation site in RyR2 exhibited decreased overloads in cytoplasmic and mitochondrial Ca2+ and demonstrated similar effects as MitoTEMPO to correct SCD‑induced changes and prevent SCD post‑MI. The data confirmed crosstalk between mROS and Ca2+ in promoting LVA‑SCD. Therefore, we provided evidence that there is a higher incidence of LVA‑SCD in early MI, which may be attributed to a positive feedback loop between mROS and Ca2+ imbalance.
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Affiliation(s)
- Danya Zhou
- Department of Forensic Medicine, Shantou University Medical College, Shantou, Guangdong 515041, P.R. China
- School of Forensic Medicine, Xinxiang Key Laboratory of Forensic Toxicology, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China
| | - Ye Zhang
- Department of Forensic Medicine, Shantou University Medical College, Shantou, Guangdong 515041, P.R. China
| | - Mengting Zhu
- Department of Forensic Medicine, Shantou University Medical College, Shantou, Guangdong 515041, P.R. China
| | - Xiaojun Zhang
- Institute of Marine Sciences and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, Guangdong 515041, P.R. China
| | - Xiaojuan Zhang
- Department of Forensic Medicine, Shantou University Medical College, Shantou, Guangdong 515041, P.R. China
| | - Junyao Lv
- Department of Forensic Medicine, Shantou University Medical College, Shantou, Guangdong 515041, P.R. China
| | - Wanting Tang
- Department of Forensic Medicine, Shantou University Medical College, Shantou, Guangdong 515041, P.R. China
| | - Qi Weng
- Department of Forensic Medicine, Shantou University Medical College, Shantou, Guangdong 515041, P.R. China
| | - Yang Lin
- Department of Forensic Medicine, Shantou University Medical College, Shantou, Guangdong 515041, P.R. China
| | - Lejun Tong
- Department of Forensic Medicine, Shantou University Medical College, Shantou, Guangdong 515041, P.R. China
| | - Zhiwei Zhong
- Department of Forensic Medicine, Shantou University Medical College, Shantou, Guangdong 515041, P.R. China
| | - Yanmei Zhang
- Department of Pharmacology, Shantou University Medical College, Shantou, Guangdong 515041, P.R. China
| | - Mengxuan Zhang
- Department of Forensic Medicine, Shantou University Medical College, Shantou, Guangdong 515041, P.R. China
| | - Minchao Lai
- Department of Neurology, First Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong 515041, P.R. China
| | - Dian Wang
- Department of Forensic Medicine, Shantou University Medical College, Shantou, Guangdong 515041, P.R. China
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29
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Egger C, Fernandez-Tenorio M, Blanch J, Janicek R, Egger M. Dual mode of action of IP 3-dependent SR-Ca 2+ release on local and global SR-Ca 2+ release in ventricular cardiomyocytes. J Mol Cell Cardiol 2024; 186:107-110. [PMID: 37993093 DOI: 10.1016/j.yjmcc.2023.11.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 10/23/2023] [Accepted: 11/17/2023] [Indexed: 11/24/2023]
Abstract
In heart muscle, the physiological function of IP3-induced Ca2+ release (IP3ICR) from the sarcoplasmic reticulum (SR) is still the subject of intense study. A role of IP3ICR may reside in modulating Ca2+-dependent cardiac arrhythmogenicity. Here we observe the propensity of spontaneous intracellular Ca2+ waves (SCaW) driven by Ca2+-induced Ca2+ release (CICR) in ventricular myocytes as a correlate of arrhythmogenicity on the organ level. We observe a dual mode of action of IP3ICR on SCaW generation in an IP3R overexpression model. This model shows a mild cardiac phenotype and mimics pathophysiological conditions of increased IP3R activity. In this model, IP3ICR was able to increase or decrease the occurrence of SCaW depending on global Ca2+ activity. This IP3ICR-based regulatory mechanism can operate in two "modes" depending on the intracellular CICR activity and efficiency (e.g. SCaW and/or local Ryanodine Receptor (RyR) Ca2+ release events, respectively): a) in a mode that augments the CICR mechanism at the cellular level, resulting in improved excitation-contraction coupling (ECC) and ultimately better contraction of the myocardium, and b) in a protective mode in which the CICR activity is curtailed to prevent the occurrence of Ca2+ waves at the cellular level and thus reduce the probability of arrhythmogenicity at the organ level.
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Affiliation(s)
- Caroline Egger
- Department of Physiology, University of Bern, Buehlplatz 5, CH 3012 Bern, Switzerland; Department of Emergency Medicine (Notfallzentrum) Inselspital - University of Bern, Freiburgstrasse 10, CH 3010 Bern, Switzerland
| | | | - Joaquim Blanch
- Department of Physiology, University of Bern, Buehlplatz 5, CH 3012 Bern, Switzerland
| | - Radoslav Janicek
- Department of Physiology, University of Bern, Buehlplatz 5, CH 3012 Bern, Switzerland
| | - Marcel Egger
- Department of Physiology, University of Bern, Buehlplatz 5, CH 3012 Bern, Switzerland.
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30
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Wang X, Geng S, Meng J, Kang N, Liu X, Xu Y, Lyu H, Xu Y, Xu X, Song X, Zhang B, Wang X, Nuerbulati N, Zhang Z, Zhai D, Mao X, Sun R, Wang X, Wang R, Guo J, Chen SW, Zhou X, Xia T, Qi H, Hu X, Shi Y. Foxp3-mediated blockage of ryanodine receptor 2 underlies contact-based suppression by regulatory T cells. J Clin Invest 2023; 133:e163470. [PMID: 38099494 PMCID: PMC10721146 DOI: 10.1172/jci163470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Accepted: 10/10/2023] [Indexed: 12/18/2023] Open
Abstract
The suppression mechanism of Tregs remains an intensely investigated topic. As our focus has shifted toward a model centered on indirect inhibition of DCs, a universally applicable effector mechanism controlled by the transcription factor forkhead box P3 (Foxp3) expression has not been found. Here, we report that Foxp3 blocked the transcription of ER Ca2+-release channel ryanodine receptor 2 (RyR2). Reduced RyR2 shut down basal Ca2+ oscillation in Tregs, which reduced m-calpain activities that are needed for T cells to disengage from DCs, suggesting a persistent blockage of DC antigen presentation. RyR2 deficiency rendered the CD4+ T cell pool immune suppressive and caused it to behave in the same manner as Foxp3+ Tregs in viral infection, asthma, hypersensitivity, colitis, and tumor development. In the absence of Foxp3, Ryr2-deficient CD4+ T cells rescued the systemic autoimmunity associated with scurfy mice. Therefore, Foxp3-mediated Ca2+ signaling inhibition may be a central effector mechanism of Treg immune suppression.
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Affiliation(s)
- Xiaobo Wang
- Department of Basic Medical Sciences, School of Medicine, and
- Institute for Immunology, Beijing Key Lab for Immunological Research on Chronic Diseases, School of Medicine, Tsinghua University, Beijing, China
| | - Shuang Geng
- Department of Microbiology, Immunology and Infectious Diseases, Snyder Institute, University of Calgary, Calgary, Alberta, Canada
| | - Junchen Meng
- Institute for Immunology, Beijing Key Lab for Immunological Research on Chronic Diseases, School of Medicine, Tsinghua University, Beijing, China
- Peking University-Tsinghua University-National Institute of Biological Sciences Joint Graduate Program, School of Life Sciences, and
| | - Ning Kang
- Department of Basic Medical Sciences, School of Medicine, and
- Institute for Immunology, Beijing Key Lab for Immunological Research on Chronic Diseases, School of Medicine, Tsinghua University, Beijing, China
| | - Xinyi Liu
- Department of Basic Medical Sciences, School of Medicine, and
- Institute for Immunology, Beijing Key Lab for Immunological Research on Chronic Diseases, School of Medicine, Tsinghua University, Beijing, China
| | - Yanni Xu
- Department of Basic Medical Sciences, School of Medicine, and
- Institute for Immunology, Beijing Key Lab for Immunological Research on Chronic Diseases, School of Medicine, Tsinghua University, Beijing, China
| | - Huiyun Lyu
- Institute for Immunology, Beijing Key Lab for Immunological Research on Chronic Diseases, School of Medicine, Tsinghua University, Beijing, China
- Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, China
| | - Ying Xu
- Department of Basic Medical Sciences, School of Medicine, and
- Institute for Immunology, Beijing Key Lab for Immunological Research on Chronic Diseases, School of Medicine, Tsinghua University, Beijing, China
| | - Xun Xu
- Department of Basic Medical Sciences, School of Medicine, and
- Institute for Immunology, Beijing Key Lab for Immunological Research on Chronic Diseases, School of Medicine, Tsinghua University, Beijing, China
| | - Xinrong Song
- Department of Basic Medical Sciences, School of Medicine, and
- Institute for Immunology, Beijing Key Lab for Immunological Research on Chronic Diseases, School of Medicine, Tsinghua University, Beijing, China
| | - Bin Zhang
- Department of Basic Medical Sciences, School of Medicine, and
- Institute for Immunology, Beijing Key Lab for Immunological Research on Chronic Diseases, School of Medicine, Tsinghua University, Beijing, China
| | - Xin Wang
- Department of Basic Medical Sciences, School of Medicine, and
- Institute for Immunology, Beijing Key Lab for Immunological Research on Chronic Diseases, School of Medicine, Tsinghua University, Beijing, China
- Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, China
| | - Nuerdida Nuerbulati
- Department of Basic Medical Sciences, School of Medicine, and
- Institute for Immunology, Beijing Key Lab for Immunological Research on Chronic Diseases, School of Medicine, Tsinghua University, Beijing, China
- Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, China
| | - Ze Zhang
- Department of Basic Medical Sciences, School of Medicine, and
- Institute for Immunology, Beijing Key Lab for Immunological Research on Chronic Diseases, School of Medicine, Tsinghua University, Beijing, China
| | - Di Zhai
- Department of Basic Medical Sciences, School of Medicine, and
- Institute for Immunology, Beijing Key Lab for Immunological Research on Chronic Diseases, School of Medicine, Tsinghua University, Beijing, China
| | - Xin Mao
- Department of Basic Medical Sciences, School of Medicine, and
- Institute for Immunology, Beijing Key Lab for Immunological Research on Chronic Diseases, School of Medicine, Tsinghua University, Beijing, China
| | - Ruya Sun
- Department of Basic Medical Sciences, School of Medicine, and
| | - Xiaoting Wang
- Department of Medical Oncology, Affiliated Hospital of Jiangnan University and Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu, China
| | - Ruiwu Wang
- Libin Cardiovascular Institute, Department of Physiology and Pharmacology, University of Calgary, Calgary, Alberta, Canada
| | - Jie Guo
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing, China
| | - S.R. Wayne Chen
- Libin Cardiovascular Institute, Department of Physiology and Pharmacology, University of Calgary, Calgary, Alberta, Canada
| | - Xuyu Zhou
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing, China
| | - Tie Xia
- Department of Basic Medical Sciences, School of Medicine, and
- Institute for Immunology, Beijing Key Lab for Immunological Research on Chronic Diseases, School of Medicine, Tsinghua University, Beijing, China
| | - Hai Qi
- Department of Basic Medical Sciences, School of Medicine, and
- Institute for Immunology, Beijing Key Lab for Immunological Research on Chronic Diseases, School of Medicine, Tsinghua University, Beijing, China
- Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, China
- Collaborative Innovation Center for Biotherapy, Tsinghua University, Beijing, China
| | - Xiaoyu Hu
- Department of Basic Medical Sciences, School of Medicine, and
- Institute for Immunology, Beijing Key Lab for Immunological Research on Chronic Diseases, School of Medicine, Tsinghua University, Beijing, China
- Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, China
- Collaborative Innovation Center for Biotherapy, Tsinghua University, Beijing, China
| | - Yan Shi
- Department of Basic Medical Sciences, School of Medicine, and
- Institute for Immunology, Beijing Key Lab for Immunological Research on Chronic Diseases, School of Medicine, Tsinghua University, Beijing, China
- Department of Microbiology, Immunology and Infectious Diseases, Snyder Institute, University of Calgary, Calgary, Alberta, Canada
- Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, China
- Collaborative Innovation Center for Biotherapy, Tsinghua University, Beijing, China
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Ishida R, Kurebayashi N, Iinuma H, Zeng X, Mori S, Kodama M, Murayama T, Masuno H, Takeda F, Kawahata M, Tanatani A, Miura A, Nishio H, Sakurai T, Kagechika H. A potent and selective cis-amide inhibitor of ryanodine receptor 2 as a candidate for cardiac arrhythmia treatment. Eur J Med Chem 2023; 262:115910. [PMID: 37922828 DOI: 10.1016/j.ejmech.2023.115910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 10/22/2023] [Accepted: 10/23/2023] [Indexed: 11/07/2023]
Abstract
Ryanodine receptor 2 (RyR2) is a Ca2+ release channel mainly located on the sarcoplasmic reticulum (SR) membrane of heart muscle cells and regulates the concentration of Ca2+ in the cytosol. RyR2 overactivation causes potentially lethal cardiac arrhythmias, but no specific inhibitor is yet available. Herein we developed the first highly potent and selective RyR2 inhibitor, TMDJ-035, containing 3,5-difluoro substituents on the A ring and a 4-fluoro substituent on the B ring, based on a comprehensive structure-activity relationship (SAR) study of tetrazole compound 1. The SAR study also showed that the amide conformation is critical for inhibitory potency. Single-crystal X-ray diffraction analysis and variable-temperature 1H NMR revealed that TMDJ-035 strongly favors cis-amide configuration, while the inactive analogue TMDJ-011 with a secondary amide takes trans-amide configuration. Examination of the selectivity among RyRs indicated that TMDJ-035 displayed high selectivity for RyR2. TMDJ-035 suppressed abnormal Ca2+ waves and transients in isolated cardiomyocytes from RyR2-mutated mice. It appears to be a promising candidate drug for treating cardiac arrhythmias due to RyR2 overactivation, as well as a tool for studying the mechanism and dynamics of RyR2 channel gating.
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Affiliation(s)
- Ryosuke Ishida
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), Tokyo, 101-0062, Japan
| | - Nagomi Kurebayashi
- Department of Cellular and Molecular Pharmacology, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan.
| | - Hiroto Iinuma
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), Tokyo, 101-0062, Japan
| | - Xi Zeng
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), Tokyo, 101-0062, Japan
| | - Shuichi Mori
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), Tokyo, 101-0062, Japan
| | - Masami Kodama
- Department of Cellular and Molecular Pharmacology, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Takashi Murayama
- Department of Cellular and Molecular Pharmacology, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Hiroyuki Masuno
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), Tokyo, 101-0062, Japan
| | - Fumi Takeda
- Department of Chemistry, Faculty of Science, Ochanomizu University, 2-1-1 Otsuka, Bunkyo-ku, Tokyo, 112-8610, Japan
| | - Masatoshi Kawahata
- Faculty of Pharmaceutical Sciences, Showa Pharmaceutical University, 3-3165 Higashi-Tamagawagakuen, Machida, Tokyo, 194-8543, Japan
| | - Aya Tanatani
- Department of Chemistry, Faculty of Science, Ochanomizu University, 2-1-1 Otsuka, Bunkyo-ku, Tokyo, 112-8610, Japan
| | - Aya Miura
- Department of Legal Medicine, Hyogo Medical University, Nishinomiya, 663-8501, Japan
| | - Hajime Nishio
- Department of Legal Medicine, Hyogo Medical University, Nishinomiya, 663-8501, Japan
| | - Takashi Sakurai
- Department of Cellular and Molecular Pharmacology, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Hiroyuki Kagechika
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), Tokyo, 101-0062, Japan.
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32
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Torres R, Hidalgo C. Subcellular localization and transcriptional regulation of brain ryanodine receptors. Functional implications. Cell Calcium 2023; 116:102821. [PMID: 37949035 DOI: 10.1016/j.ceca.2023.102821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 10/16/2023] [Accepted: 11/03/2023] [Indexed: 11/12/2023]
Abstract
Ryanodine receptors (RyR) are intracellular Ca2+ channels localized in the endoplasmic reticulum, where they act as critical mediators of Ca2+-induced Ca2+ calcium release (CICR). In the brain, mammals express in both neurons, and non-neuronal cells, a combination of the three RyR-isoforms (RyR1-3). Pharmacological approaches, which do not distinguish between isoforms, have indicated that RyR-isoforms contribute to brain function. However, isoform-specific manipulations have revealed that RyR-isoforms display different subcellular localizations and are differentially associated with neuronal function. These findings raise the need to understand RyR-isoform specific transcriptional regulation, as this knowledge will help to elucidate the causes of neuronal dysfunction for a growing list of brain disorders that show altered RyR channel expression and function.
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Affiliation(s)
- Rodrigo Torres
- Facultad de Medicina y Ciencia, Universidad San Sebastián, Lago Panguipulli 1390, 5501842, Puerto Montt, Chile.
| | - Cecilia Hidalgo
- Department of Neurosciences. Biomedical Neuroscience Institute, Physiology and Biophysics Program, Institute of Biomedical Sciences, Center for Exercise, Metabolism and Cancer Studies, Faculty of Medicine, Universidad de Chile, Santiago, 8380000, Chile
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33
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Driver K, Vo C, Scriba CK, Saker S, Larmonier T, Malfatti E, Romero NB, Ravenscroft G, Laing NG, Taylor RL, Clayton JS. Generation of two induced pluripotent stem cell lines from a 33-year-old central core disease patient with a heterozygous dominant c.14145_14156delCTACTGGGACA (p.Asn4715_Asp4718del) deletion in the RYR1 gene. Stem Cell Res 2023; 73:103258. [PMID: 38029555 DOI: 10.1016/j.scr.2023.103258] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 11/09/2023] [Accepted: 11/20/2023] [Indexed: 12/01/2023] Open
Abstract
Central core disease (CCD) is a congenital disorder that results in hypotonia, delayed motor development, and areas of reduced oxidative activity in the muscle fibre. Two induced pluripotent stem cell (iPSC) lines were generated from the lymphoblastoid cells of a 33-year-old male with CCD, caused by a previously unreported dominant c.14145_14156delCTACTGGGACA (p.Asn4715_Asp4718del) deletion in the RYR1 gene. Both lines demonstrated typical morphology, pluripotency, trilineage differentiation, and had a normal karyotype. As the first published iPSC model of CCD caused by an RYR1 variant these lines are a potential resource for further investigation of RYR1-related myopathies in a human context.
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Affiliation(s)
- Karrison Driver
- Harry Perkins Institute of Medical Research, QEII Medical Centre, Nedlands, WA, Australia; Centre for Medical Research, University of Western Australia, QEII Medical Centre, Nedlands, WA, Australia
| | - Christina Vo
- Harry Perkins Institute of Medical Research, QEII Medical Centre, Nedlands, WA, Australia; Centre for Medical Research, University of Western Australia, QEII Medical Centre, Nedlands, WA, Australia
| | - Carolin K Scriba
- Harry Perkins Institute of Medical Research, QEII Medical Centre, Nedlands, WA, Australia; Centre for Medical Research, University of Western Australia, QEII Medical Centre, Nedlands, WA, Australia; Neurogenetics Laboratory, Department of Diagnostic Genomics, PP Block, QEII Medical Centre, Nedlands, WA, Australia
| | - Safaa Saker
- Genethon, DNA and Cell Bank, 91000 Evry, France
| | | | - Edoardo Malfatti
- APHP, Centre de Référence de Pathologie Neuromusculaire Nord-Est-Ile-de-France, Henri Mondor Hospital, France; Université Paris Est, U955, INSERM, IMRB, F-94010 Créteil, France
| | - Norma B Romero
- Sorbonne Université, Myology Institute, Neuromuscular Morphology Unit, Center for Research in Myology, GH Pitié-Salpêtrière, Paris, France; Centre de Référence de Pathologie Neuromusculaire Paris-Est, GHU Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Gianina Ravenscroft
- Harry Perkins Institute of Medical Research, QEII Medical Centre, Nedlands, WA, Australia; Centre for Medical Research, University of Western Australia, QEII Medical Centre, Nedlands, WA, Australia
| | - Nigel G Laing
- Harry Perkins Institute of Medical Research, QEII Medical Centre, Nedlands, WA, Australia; Centre for Medical Research, University of Western Australia, QEII Medical Centre, Nedlands, WA, Australia
| | - Rhonda L Taylor
- Harry Perkins Institute of Medical Research, QEII Medical Centre, Nedlands, WA, Australia; Centre for Medical Research, University of Western Australia, QEII Medical Centre, Nedlands, WA, Australia
| | - Joshua S Clayton
- Harry Perkins Institute of Medical Research, QEII Medical Centre, Nedlands, WA, Australia; Centre for Medical Research, University of Western Australia, QEII Medical Centre, Nedlands, WA, Australia.
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Chakraborty P, Aggarwal AK, Nair MKK, Massé S, Riazi S, Nanthakumar K. Restoration of calcium release synchrony: A novel target for heart failure and ventricular arrhythmia. Heart Rhythm 2023; 20:1773-1781. [PMID: 37678492 DOI: 10.1016/j.hrthm.2023.08.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 08/13/2023] [Accepted: 08/31/2023] [Indexed: 09/09/2023]
Abstract
Myocardial calcium (Ca2+) signaling plays a crucial role in contractile function and membrane electrophysiology. An abnormal myocardial Ca2+ transient is linked to heart failure and ventricular arrhythmias. At the subcellular level, the synchronous release of Ca2+ sparks from sarcoplasmic Ca2+ release units determines the configuration and amplitude of the global Ca2+ transient. This narrative review evaluates the role of aberrant Ca2+ release synchrony in the pathophysiology of cardiomyopathies and ventricular arrhythmias. The potential therapeutic benefits of restoration of Ca2+ release synchrony in heart failure and ventricular arrhythmias are also discussed.
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Affiliation(s)
- Praloy Chakraborty
- The Hull Family Cardiac Fibrillation Management Laboratory, Toronto General Hospital, University Health Network, Toronto, Ontario, Canada; Heart Rhythm Institute, University of Oklahoma Health Science Center, Oklahoma City, Oklahoma
| | - Arjun K Aggarwal
- The Hull Family Cardiac Fibrillation Management Laboratory, Toronto General Hospital, University Health Network, Toronto, Ontario, Canada
| | - Madhav Krishna Kumar Nair
- The Hull Family Cardiac Fibrillation Management Laboratory, Toronto General Hospital, University Health Network, Toronto, Ontario, Canada
| | - Stéphane Massé
- The Hull Family Cardiac Fibrillation Management Laboratory, Toronto General Hospital, University Health Network, Toronto, Ontario, Canada
| | - Sheila Riazi
- Malignant Hyperthermia Investigation Unit, Department of Anesthesia and Pain Management, University Health Network, Toronto, Ontario, Canada
| | - Kumaraswamy Nanthakumar
- The Hull Family Cardiac Fibrillation Management Laboratory, Toronto General Hospital, University Health Network, Toronto, Ontario, Canada.
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Vaghasiya J, Dalvand A, Sikarwar A, Mangat D, Ragheb M, Kowatsch K, Pandey D, Hosseini SM, Hackett TL, Karimi-Abdolrezaee S, Ravandi A, Pascoe CD, Halayko AJ. Oxidized Phosphatidylcholines Trigger TRPA1 and Ryanodine Receptor-dependent Airway Smooth Muscle Contraction. Am J Respir Cell Mol Biol 2023; 69:649-665. [PMID: 37552547 DOI: 10.1165/rcmb.2022-0457oc] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Accepted: 08/07/2023] [Indexed: 08/10/2023] Open
Abstract
Asthma pathobiology includes oxidative stress that modifies cell membranes and extracellular phospholipids. Oxidized phosphatidylcholines (OxPCs) in lung lavage from allergen-challenged human participants correlate with airway hyperresponsiveness and induce bronchial narrowing in murine thin-cut lung slices. OxPCs activate many signaling pathways, but mechanisms for these responses are unclear. We hypothesize that OxPCs stimulate intracellular free Ca2+ flux to trigger airway smooth muscle contraction. Intracellular Ca2+ flux was assessed in Fura-2-loaded, cultured human airway smooth muscle cells. Oxidized 1-palmitoyl-2-arachidonoyl-sn-glycero-3-phosphocholine (OxPAPC) induced an approximately threefold increase in 20 kD myosin light chain phosphorylation. This correlated with a rapid peak in intracellular cytoplasmic Ca2+ concentration ([Ca2+]i) (143 nM) and a sustained plateau that included slow oscillations in [Ca2+]i. Sustained [Ca2+]i elevation was ablated in Ca2+-free buffer and by TRPA1 inhibition. Conversely, OxPAPC-induced peak [Ca2+]i was unaffected in Ca2+-free buffer, by TRPA1 inhibition, or by inositol 1,4,5-triphosphate receptor inhibition. Peak [Ca2+]i was ablated by pharmacologic inhibition of ryanodine receptor (RyR) Ca2+ release from the sarcoplasmic reticulum. Inhibiting the upstream RyR activator cyclic adenosine diphosphate ribose with 8-bromo-cyclic adenosine diphosphate ribose was sufficient to abolish OxPAPC-induced cytoplasmic Ca2+ flux. OxPAPC induced ∼15% bronchial narrowing in thin-cut lung slices that could be prevented by pharmacologic inhibition of either TRPA1 or RyR, which similarly inhibited OxPC-induced myosin light chain phosphorylation in cultured human airway smooth muscle cells. In summary, OxPC mediates airway narrowing by triggering TRPA1 and RyR-mediated mobilization of intracellular and extracellular Ca2+ in airway smooth muscle. These data suggest that OxPC in the airways of allergen-challenged subjects and subjects with asthma may contribute to airway hyperresponsiveness.
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Affiliation(s)
- Jignesh Vaghasiya
- Department of Physiology and Pathophysiology
- Biology of Breathing Group, Children's Research Hospital of Manitoba, Winnipeg, Manitoba, Canada
| | - Azadeh Dalvand
- Department of Physiology and Pathophysiology
- Biology of Breathing Group, Children's Research Hospital of Manitoba, Winnipeg, Manitoba, Canada
| | - Anurag Sikarwar
- Department of Physiology and Pathophysiology
- Biology of Breathing Group, Children's Research Hospital of Manitoba, Winnipeg, Manitoba, Canada
| | - Divleen Mangat
- Biology of Breathing Group, Children's Research Hospital of Manitoba, Winnipeg, Manitoba, Canada
| | - Mirna Ragheb
- Biology of Breathing Group, Children's Research Hospital of Manitoba, Winnipeg, Manitoba, Canada
| | - Katarina Kowatsch
- Biology of Breathing Group, Children's Research Hospital of Manitoba, Winnipeg, Manitoba, Canada
| | - Dheerendra Pandey
- Department of Physiology and Pathophysiology
- Biology of Breathing Group, Children's Research Hospital of Manitoba, Winnipeg, Manitoba, Canada
| | - Seyed Mojtaba Hosseini
- Department of Physiology and Pathophysiology
- Manitoba Multiple Sclerosis Research Center, and
| | - Tillie L Hackett
- Department of Anesthesiology, Pharmacology & Therapeutics, Centre for Heart Lung Innovation, University of British Columbia, Vancouver, British Columbia, Canada; and
| | | | - Amir Ravandi
- Department of Physiology and Pathophysiology
- Department of Internal Medicine, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
- Institute of Cardiovascular Sciences, St. Boniface Hospital Albrechtsen Research Centre, Winnipeg, Manitoba, Canada
| | - Christopher D Pascoe
- Department of Physiology and Pathophysiology
- Biology of Breathing Group, Children's Research Hospital of Manitoba, Winnipeg, Manitoba, Canada
| | - Andrew J Halayko
- Department of Physiology and Pathophysiology
- Department of Internal Medicine, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
- Biology of Breathing Group, Children's Research Hospital of Manitoba, Winnipeg, Manitoba, Canada
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36
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Waddell HMM, Mereacre V, Alvarado FJ, Munro ML. Clustering properties of the cardiac ryanodine receptor in health and heart failure. J Mol Cell Cardiol 2023; 185:38-49. [PMID: 37890552 PMCID: PMC10717225 DOI: 10.1016/j.yjmcc.2023.10.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 10/09/2023] [Accepted: 10/24/2023] [Indexed: 10/29/2023]
Abstract
The cardiac ryanodine receptor (RyR2) is an intracellular Ca2+ release channel vital for the function of the heart. Physiologically, RyR2 is triggered to release Ca2+ from the sarcoplasmic reticulum (SR) which enables cardiac contraction; however, spontaneous Ca2+ leak from RyR2 has been implicated in the pathophysiology of heart failure (HF). RyR2 channels have been well documented to assemble into clusters within the SR membrane, with the organisation of RyR2 clusters recently gaining interest as a mechanism by which the occurrence of pathological Ca2+ leak is regulated, including in HF. In this review, we explain the terminology relating to key nanoscale RyR2 clustering properties as both single clusters and functionally grouped Ca2+ release units, with a focus on the advancements in super-resolution imaging approaches which have enabled the detailed study of cluster organisation. Further, we discuss proposed mechanisms for modulating RyR2 channel organisation and the debate regarding the potential impact of cluster organisation on Ca2+ leak activity. Finally, recent experimental evidence investigating the nanoscale remodelling and functional alterations of RyR2 clusters in HF is discussed with consideration of the clinical implications.
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Affiliation(s)
- Helen M M Waddell
- Department of Physiology and HeartOtago, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
| | - Valeria Mereacre
- Department of Physiology and HeartOtago, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
| | - Francisco J Alvarado
- Department of Medicine and Cardiovascular Research Center, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI, USA
| | - Michelle L Munro
- Department of Physiology and HeartOtago, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand.
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Vidal J, Fernandez EA, Wohlwend M, Laurila P, Lopez‐Mejia A, Ochala J, Lobrinus AJ, Kayser B, Lopez‐Mejia IC, Place N, Zanou N. Ryanodine receptor type 1 content decrease-induced endoplasmic reticulum stress is a hallmark of myopathies. J Cachexia Sarcopenia Muscle 2023; 14:2882-2897. [PMID: 37964752 PMCID: PMC10751419 DOI: 10.1002/jcsm.13349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 07/24/2023] [Accepted: 09/11/2023] [Indexed: 11/16/2023] Open
Abstract
BACKGROUND Decreased ryanodine receptor type 1 (RyR1) protein levels are a well-described feature of recessive RYR1-related myopathies. The aim of the present study was twofold: (1) to determine whether RyR1 content is also decreased in other myopathies and (2) to investigate the mechanisms by which decreased RyR1 protein triggers muscular disorders. METHODS We used publicly available datasets, muscles from human inflammatory and mitochondrial myopathies, an inducible muscle-specific RYR1 recessive mouse model and RyR1 knockdown in C2C12 muscle cells to measure RyR1 content and endoplasmic reticulum (ER) stress markers. Proteomics, lipidomics, molecular biology and transmission electron microscopy approaches were used to decipher the alterations associated with the reduction of RyR1 protein levels. RESULTS RYR1 transcripts were reduced in muscle samples of patients suffering from necrotizing myopathy (P = 0.026), inclusion body myopathy (P = 0.003), polymyositis (P < 0.001) and juvenile dermatomyositis (P < 0.001) and in muscle samples of myotonic dystrophy type 2 (P < 0.001), presymptomatic (P < 0.001) and symptomatic (P < 0.001) Duchenne muscular dystrophy, Becker muscular dystrophy (P = 0.004) and limb-girdle muscular dystrophy type 2A (P = 0.004). RyR1 protein content was also significantly decreased in inflammatory myopathy (-75%, P < 0.001) and mitochondrial myopathy (-71%, P < 0.001) muscles. Proteomics data showed that depletion of RyR1 protein in C2C12 myoblasts leads to myotubes recapitulating the common molecular alterations observed in myopathies. Mechanistically, RyR1 protein depletion reduces ER-mitochondria contact length (-26%, P < 0.001), Ca2+ transfer to mitochondria (-48%, P = 0.002) and the mitophagy gene Parkinson protein 2 transcripts (P = 0.037) and induces mitochondrial accumulation (+99%, P = 0.005) and dysfunction (P < 0.001). This was associated to the accumulation of deleterious sphingolipid species. Our data showed increased levels of the ER stress marker chaperone-binding protein/glucose regulated protein 78, GRP78-Bip, in RyR1 knockdown myotubes (+45%, P = 0.046), in mouse RyR1 recessive muscles (+58%, P = 0.001) and in human inflammatory (+96%, P = 0.006) and mitochondrial (+64%, P = 0.049) myopathy muscles. This was accompanied by increased protein levels of the pro-apoptotic protein CCAAT-enhancer-binding protein homologous protein, CHOP-DDIT3, in RyR1 knockdown myotubes (+27%, P < 0.001), mouse RyR1 recessive muscles (+63%, P = 0.009), human inflammatory (+50%, P = 0.038) and mitochondrial (+51%, P = 0.035) myopathy muscles. In publicly available datasets, the decrease in RYR1 content in myopathies was also associated to increased ER stress markers and RYR1 transcript levels are inversely correlated with ER stress markers in the control population. CONCLUSIONS Decreased RyR1 is commonly observed in myopathies and associated to ER stress in vitro, in mouse muscle and in human myopathy muscles, suggesting a potent role of RyR1 depletion-induced ER stress in the pathogenesis of myopathies.
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Affiliation(s)
- Jeremy Vidal
- Institute of Sport Sciences and Department of Biomedical SciencesUniversity of LausanneLausanneSwitzerland
| | - Eric A. Fernandez
- Center for Integrative GenomicsUniversity of LausanneLausanneSwitzerland
| | - Martin Wohlwend
- Computer Science and Artificial Intelligence LaboratoryMassachusetts Institute of TechnologyCambridgeMassachusettsUSA
| | | | - Andrea Lopez‐Mejia
- Center for Integrative GenomicsUniversity of LausanneLausanneSwitzerland
| | - Julien Ochala
- Department of Biomedical SciencesUniversity of CopenhagenCopenhagenDenmark
| | - Alexander J. Lobrinus
- Institute of PathologyLausanne University Hospital (CHUV)LausanneSwitzerland
- Department of Clinical PathologyUniversity Hospital GenevaGenevaSwitzerland
| | - Bengt Kayser
- Institute of Sport Sciences and Department of Biomedical SciencesUniversity of LausanneLausanneSwitzerland
| | | | - Nicolas Place
- Institute of Sport Sciences and Department of Biomedical SciencesUniversity of LausanneLausanneSwitzerland
| | - Nadège Zanou
- Institute of Sport Sciences and Department of Biomedical SciencesUniversity of LausanneLausanneSwitzerland
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Abstract
Calcium ions (Ca2+) are the basis of a unique and potent array of cellular responses. Calmodulin (CaM) is a small but vital protein that is able to rapidly transmit information about changes in Ca2+ concentrations to its regulatory targets. CaM plays a critical role in cellular Ca2+ signaling, and interacts with a myriad of target proteins. Ca2+-dependent modulation by CaM is a major component of a diverse array of processes, ranging from gene expression in neurons to the shaping of the cardiac action potential in heart cells. Furthermore, the protein sequence of CaM is highly evolutionarily conserved, and identical CaM proteins are encoded by three independent genes (CALM1-3) in humans. Mutations within any of these three genes may lead to severe cardiac deficits including severe long QT syndrome (LQTS) and/or catecholaminergic polymorphic ventricular tachycardia (CPVT). Research into disease-associated CaM variants has identified several proteins modulated by CaM that are likely to underlie the pathogenesis of these calmodulinopathies, including the cardiac L-type Ca2+ channel (LTCC) CaV1.2, and the sarcoplasmic reticulum Ca2+ release channel, ryanodine receptor 2 (RyR2). Here, we review the research that has been done to identify calmodulinopathic CaM mutations and evaluate the mechanisms underlying their role in disease.
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Affiliation(s)
- John W. Hussey
- Department of Physiology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Worawan B. Limpitikul
- Department of Medicine, Division of Cardiology, Massachusetts General Hospital, Boston, MA, USA
| | - Ivy E. Dick
- Department of Physiology, University of Maryland School of Medicine, Baltimore, MD, USA
- CONTACT Ivy E. Dick School of Medicine, University of Maryland, Baltimore, MD21210
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Bibollet H, Kramer A, Bannister RA, Hernández-Ochoa EO. Advances in Ca V1.1 gating: New insights into permeation and voltage-sensing mechanisms. Channels (Austin) 2023; 17:2167569. [PMID: 36642864 PMCID: PMC9851209 DOI: 10.1080/19336950.2023.2167569] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 01/09/2023] [Indexed: 01/17/2023] Open
Abstract
The CaV1.1 voltage-gated Ca2+ channel carries L-type Ca2+ current and is the voltage-sensor for excitation-contraction (EC) coupling in skeletal muscle. Significant breakthroughs in the EC coupling field have often been close on the heels of technological advancement. In particular, CaV1.1 was the first voltage-gated Ca2+ channel to be cloned, the first ion channel to have its gating current measured and the first ion channel to have an effectively null animal model. Though these innovations have provided invaluable information regarding how CaV1.1 detects changes in membrane potential and transmits intra- and inter-molecular signals which cause opening of the channel pore and support Ca2+ release from the sarcoplasmic reticulum remain elusive. Here, we review current perspectives on this topic including the recent application of functional site-directed fluorometry.
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Affiliation(s)
- Hugo Bibollet
- Department of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Audra Kramer
- Department of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Roger A. Bannister
- Department of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, MD, USA
- Department of Pathology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Erick O. Hernández-Ochoa
- Department of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, MD, USA
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Takenaka M, Kodama M, Murayama T, Ishigami-Yuasa M, Mori S, Ishida R, Suzuki J, Kanemaru K, Sugihara M, Iino M, Miura A, Nishio H, Morimoto S, Kagechika H, Sakurai T, Kurebayashi N. Screening for Novel Type 2 Ryanodine Receptor Inhibitors by Endoplasmic Reticulum Ca 2+ Monitoring. Mol Pharmacol 2023; 104:275-286. [PMID: 37678938 DOI: 10.1124/molpharm.123.000720] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 08/21/2023] [Accepted: 08/29/2023] [Indexed: 09/09/2023] Open
Abstract
Type 2 ryanodine receptor (RyR2) is a Ca2+ release channel on the endoplasmic (ER)/sarcoplasmic reticulum that plays a central role in the excitation-contraction coupling in the heart. Hyperactivity of RyR2 has been linked to ventricular arrhythmias in patients with catecholaminergic polymorphic ventricular tachycardia and heart failure, where spontaneous Ca2+ release via hyperactivated RyR2 depolarizes diastolic membrane potential to induce triggered activity. In such cases, drugs that suppress RyR2 activity are expected to prevent the arrhythmias, but there is no clinically available RyR2 inhibitors at present. In this study, we searched for RyR2 inhibitors from a well-characterized compound library using a recently developed ER Ca2+-based assay, where the inhibition of RyR2 activity was detected by the increase in ER Ca2+ signals from R-CEPIA1er, a genetically encoded ER Ca2+ indicator, in RyR2-expressing HEK293 cells. By screening 1535 compounds in the library, we identified three compounds (chloroxylenol, methyl orsellinate, and riluzole) that greatly increased the ER Ca2+ signal. All of the three compounds suppressed spontaneous Ca2+ oscillations in RyR2-expressing HEK293 cells and correspondingly reduced the Ca2+-dependent [3H]ryanodine binding activity. In cardiomyocytes from RyR2-mutant mice, the three compounds effectively suppressed abnormal Ca2+ waves without substantial effects on the action-potential-induced Ca2+ transients. These results confirm that ER Ca2+-based screening is useful for identifying modulators of ER Ca2+ release channels and suggest that RyR2 inhibitors have potential to be developed as a new category of antiarrhythmic drugs. SIGNIFICANCE STATEMENT: We successfully identified three compounds having RyR2 inhibitory action from a well-characterized compound library using an endoplasmic reticulum Ca2+-based assay, and demonstrated that these compounds suppressed arrhythmogenic Ca2+ wave generation without substantially affecting physiological action-potential induced Ca2+ transients in cardiomyocytes. This study will facilitate the development of RyR2-specific inhibitors as a potential new class of drugs for life-threatening arrhythmias induced by hyperactivation of RyR2.
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Affiliation(s)
- Mai Takenaka
- Department of Cellular and Molecular Pharmacology (M.T., M.K., T.M., T.S., N.K.) and Department of Clinical Laboratory Medicine (M.S.), Juntendo University Graduate School of Medicine, Tokyo, Japan; Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo, Japan (M.I.-Y., Sh.M., R.I., H.K.); Department of Physiology, University of California San Francisco, San Francisco, California (J.S.); Department of Physiology, Nihon University School of Medicine, Tokyo, Japan (K.K., M.I.); Department of Legal Medicine, Hyogo Medical University, Nishinomiya, Japan (A.M., H.N.); and Department of Health Sciences at Fukuoka, International University of Health and Welfare, Fukuoka, Japan (Sa.M.)
| | - Masami Kodama
- Department of Cellular and Molecular Pharmacology (M.T., M.K., T.M., T.S., N.K.) and Department of Clinical Laboratory Medicine (M.S.), Juntendo University Graduate School of Medicine, Tokyo, Japan; Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo, Japan (M.I.-Y., Sh.M., R.I., H.K.); Department of Physiology, University of California San Francisco, San Francisco, California (J.S.); Department of Physiology, Nihon University School of Medicine, Tokyo, Japan (K.K., M.I.); Department of Legal Medicine, Hyogo Medical University, Nishinomiya, Japan (A.M., H.N.); and Department of Health Sciences at Fukuoka, International University of Health and Welfare, Fukuoka, Japan (Sa.M.)
| | - Takashi Murayama
- Department of Cellular and Molecular Pharmacology (M.T., M.K., T.M., T.S., N.K.) and Department of Clinical Laboratory Medicine (M.S.), Juntendo University Graduate School of Medicine, Tokyo, Japan; Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo, Japan (M.I.-Y., Sh.M., R.I., H.K.); Department of Physiology, University of California San Francisco, San Francisco, California (J.S.); Department of Physiology, Nihon University School of Medicine, Tokyo, Japan (K.K., M.I.); Department of Legal Medicine, Hyogo Medical University, Nishinomiya, Japan (A.M., H.N.); and Department of Health Sciences at Fukuoka, International University of Health and Welfare, Fukuoka, Japan (Sa.M.)
| | - Mari Ishigami-Yuasa
- Department of Cellular and Molecular Pharmacology (M.T., M.K., T.M., T.S., N.K.) and Department of Clinical Laboratory Medicine (M.S.), Juntendo University Graduate School of Medicine, Tokyo, Japan; Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo, Japan (M.I.-Y., Sh.M., R.I., H.K.); Department of Physiology, University of California San Francisco, San Francisco, California (J.S.); Department of Physiology, Nihon University School of Medicine, Tokyo, Japan (K.K., M.I.); Department of Legal Medicine, Hyogo Medical University, Nishinomiya, Japan (A.M., H.N.); and Department of Health Sciences at Fukuoka, International University of Health and Welfare, Fukuoka, Japan (Sa.M.)
| | - Shuichi Mori
- Department of Cellular and Molecular Pharmacology (M.T., M.K., T.M., T.S., N.K.) and Department of Clinical Laboratory Medicine (M.S.), Juntendo University Graduate School of Medicine, Tokyo, Japan; Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo, Japan (M.I.-Y., Sh.M., R.I., H.K.); Department of Physiology, University of California San Francisco, San Francisco, California (J.S.); Department of Physiology, Nihon University School of Medicine, Tokyo, Japan (K.K., M.I.); Department of Legal Medicine, Hyogo Medical University, Nishinomiya, Japan (A.M., H.N.); and Department of Health Sciences at Fukuoka, International University of Health and Welfare, Fukuoka, Japan (Sa.M.)
| | - Ryosuke Ishida
- Department of Cellular and Molecular Pharmacology (M.T., M.K., T.M., T.S., N.K.) and Department of Clinical Laboratory Medicine (M.S.), Juntendo University Graduate School of Medicine, Tokyo, Japan; Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo, Japan (M.I.-Y., Sh.M., R.I., H.K.); Department of Physiology, University of California San Francisco, San Francisco, California (J.S.); Department of Physiology, Nihon University School of Medicine, Tokyo, Japan (K.K., M.I.); Department of Legal Medicine, Hyogo Medical University, Nishinomiya, Japan (A.M., H.N.); and Department of Health Sciences at Fukuoka, International University of Health and Welfare, Fukuoka, Japan (Sa.M.)
| | - Junji Suzuki
- Department of Cellular and Molecular Pharmacology (M.T., M.K., T.M., T.S., N.K.) and Department of Clinical Laboratory Medicine (M.S.), Juntendo University Graduate School of Medicine, Tokyo, Japan; Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo, Japan (M.I.-Y., Sh.M., R.I., H.K.); Department of Physiology, University of California San Francisco, San Francisco, California (J.S.); Department of Physiology, Nihon University School of Medicine, Tokyo, Japan (K.K., M.I.); Department of Legal Medicine, Hyogo Medical University, Nishinomiya, Japan (A.M., H.N.); and Department of Health Sciences at Fukuoka, International University of Health and Welfare, Fukuoka, Japan (Sa.M.)
| | - Kazunori Kanemaru
- Department of Cellular and Molecular Pharmacology (M.T., M.K., T.M., T.S., N.K.) and Department of Clinical Laboratory Medicine (M.S.), Juntendo University Graduate School of Medicine, Tokyo, Japan; Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo, Japan (M.I.-Y., Sh.M., R.I., H.K.); Department of Physiology, University of California San Francisco, San Francisco, California (J.S.); Department of Physiology, Nihon University School of Medicine, Tokyo, Japan (K.K., M.I.); Department of Legal Medicine, Hyogo Medical University, Nishinomiya, Japan (A.M., H.N.); and Department of Health Sciences at Fukuoka, International University of Health and Welfare, Fukuoka, Japan (Sa.M.)
| | - Masami Sugihara
- Department of Cellular and Molecular Pharmacology (M.T., M.K., T.M., T.S., N.K.) and Department of Clinical Laboratory Medicine (M.S.), Juntendo University Graduate School of Medicine, Tokyo, Japan; Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo, Japan (M.I.-Y., Sh.M., R.I., H.K.); Department of Physiology, University of California San Francisco, San Francisco, California (J.S.); Department of Physiology, Nihon University School of Medicine, Tokyo, Japan (K.K., M.I.); Department of Legal Medicine, Hyogo Medical University, Nishinomiya, Japan (A.M., H.N.); and Department of Health Sciences at Fukuoka, International University of Health and Welfare, Fukuoka, Japan (Sa.M.)
| | - Masamitsu Iino
- Department of Cellular and Molecular Pharmacology (M.T., M.K., T.M., T.S., N.K.) and Department of Clinical Laboratory Medicine (M.S.), Juntendo University Graduate School of Medicine, Tokyo, Japan; Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo, Japan (M.I.-Y., Sh.M., R.I., H.K.); Department of Physiology, University of California San Francisco, San Francisco, California (J.S.); Department of Physiology, Nihon University School of Medicine, Tokyo, Japan (K.K., M.I.); Department of Legal Medicine, Hyogo Medical University, Nishinomiya, Japan (A.M., H.N.); and Department of Health Sciences at Fukuoka, International University of Health and Welfare, Fukuoka, Japan (Sa.M.)
| | - Aya Miura
- Department of Cellular and Molecular Pharmacology (M.T., M.K., T.M., T.S., N.K.) and Department of Clinical Laboratory Medicine (M.S.), Juntendo University Graduate School of Medicine, Tokyo, Japan; Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo, Japan (M.I.-Y., Sh.M., R.I., H.K.); Department of Physiology, University of California San Francisco, San Francisco, California (J.S.); Department of Physiology, Nihon University School of Medicine, Tokyo, Japan (K.K., M.I.); Department of Legal Medicine, Hyogo Medical University, Nishinomiya, Japan (A.M., H.N.); and Department of Health Sciences at Fukuoka, International University of Health and Welfare, Fukuoka, Japan (Sa.M.)
| | - Hajime Nishio
- Department of Cellular and Molecular Pharmacology (M.T., M.K., T.M., T.S., N.K.) and Department of Clinical Laboratory Medicine (M.S.), Juntendo University Graduate School of Medicine, Tokyo, Japan; Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo, Japan (M.I.-Y., Sh.M., R.I., H.K.); Department of Physiology, University of California San Francisco, San Francisco, California (J.S.); Department of Physiology, Nihon University School of Medicine, Tokyo, Japan (K.K., M.I.); Department of Legal Medicine, Hyogo Medical University, Nishinomiya, Japan (A.M., H.N.); and Department of Health Sciences at Fukuoka, International University of Health and Welfare, Fukuoka, Japan (Sa.M.)
| | - Sachio Morimoto
- Department of Cellular and Molecular Pharmacology (M.T., M.K., T.M., T.S., N.K.) and Department of Clinical Laboratory Medicine (M.S.), Juntendo University Graduate School of Medicine, Tokyo, Japan; Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo, Japan (M.I.-Y., Sh.M., R.I., H.K.); Department of Physiology, University of California San Francisco, San Francisco, California (J.S.); Department of Physiology, Nihon University School of Medicine, Tokyo, Japan (K.K., M.I.); Department of Legal Medicine, Hyogo Medical University, Nishinomiya, Japan (A.M., H.N.); and Department of Health Sciences at Fukuoka, International University of Health and Welfare, Fukuoka, Japan (Sa.M.)
| | - Hiroyuki Kagechika
- Department of Cellular and Molecular Pharmacology (M.T., M.K., T.M., T.S., N.K.) and Department of Clinical Laboratory Medicine (M.S.), Juntendo University Graduate School of Medicine, Tokyo, Japan; Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo, Japan (M.I.-Y., Sh.M., R.I., H.K.); Department of Physiology, University of California San Francisco, San Francisco, California (J.S.); Department of Physiology, Nihon University School of Medicine, Tokyo, Japan (K.K., M.I.); Department of Legal Medicine, Hyogo Medical University, Nishinomiya, Japan (A.M., H.N.); and Department of Health Sciences at Fukuoka, International University of Health and Welfare, Fukuoka, Japan (Sa.M.)
| | - Takashi Sakurai
- Department of Cellular and Molecular Pharmacology (M.T., M.K., T.M., T.S., N.K.) and Department of Clinical Laboratory Medicine (M.S.), Juntendo University Graduate School of Medicine, Tokyo, Japan; Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo, Japan (M.I.-Y., Sh.M., R.I., H.K.); Department of Physiology, University of California San Francisco, San Francisco, California (J.S.); Department of Physiology, Nihon University School of Medicine, Tokyo, Japan (K.K., M.I.); Department of Legal Medicine, Hyogo Medical University, Nishinomiya, Japan (A.M., H.N.); and Department of Health Sciences at Fukuoka, International University of Health and Welfare, Fukuoka, Japan (Sa.M.)
| | - Nagomi Kurebayashi
- Department of Cellular and Molecular Pharmacology (M.T., M.K., T.M., T.S., N.K.) and Department of Clinical Laboratory Medicine (M.S.), Juntendo University Graduate School of Medicine, Tokyo, Japan; Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo, Japan (M.I.-Y., Sh.M., R.I., H.K.); Department of Physiology, University of California San Francisco, San Francisco, California (J.S.); Department of Physiology, Nihon University School of Medicine, Tokyo, Japan (K.K., M.I.); Department of Legal Medicine, Hyogo Medical University, Nishinomiya, Japan (A.M., H.N.); and Department of Health Sciences at Fukuoka, International University of Health and Welfare, Fukuoka, Japan (Sa.M.)
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Huo X, Wang K, Yao B, Song L, Li Z, He W, Li Y, Ma J, Wang L, Wu Z. Function and regulation of miR-186-5p, miR-125b-5p and miR-1260a in chordoma. BMC Cancer 2023; 23:1152. [PMID: 38012562 PMCID: PMC10680222 DOI: 10.1186/s12885-023-11238-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 07/30/2023] [Indexed: 11/29/2023] Open
Abstract
BACKGROUND The function and regulation of miRNAs in progression of chordoma were unclear. METHODS Five miRNAs were identified by the machine learning method from the miRNA expression array. CCk-8 assay, EDU assay, wound healing migration assay, and trans-well assay were used to reveal the effect of the miRNAs in chordoma cell lines. Moreover, bioinformation analysis and the mRNA expression array between the primary chordomas and recurrent chordomas were used to find the target protein genes of miRNAs. Furthermore, qRT-PCR and luciferase reporter assay were used to verify the result. RESULTS miR-186-5p, miR-30c-5p, miR-151b, and miR-125b-5p could inhibit proliferation, migration, and invasion of chordoma while miR-1260a enhances proliferation, migration, and invasion of chordoma. Recurrent chordoma has a worse disease-free outcome than the primary chordoma patients. AMOT, NPTX1, RYR3, and P2RX5 were the target protein mRNAs of miR-186-5p; NPTX1 was the target protein mRNAs of miR-125b-5p; and AMOT and TNFSF14 were the target protein mRNAs of miR-1260a. CONCLUSIONS miR-186-5p, miR-125b-5p, miR-1260a, and their target protein mRNAs including AMOT, NPTX1, RYR3, P2RX5, TNFSF14 may be the basement of chordoma research.
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Affiliation(s)
- Xulei Huo
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Nansihuanxilu 119, Fengtai District, Beijing, 100070, China
| | - Ke Wang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Nansihuanxilu 119, Fengtai District, Beijing, 100070, China.
| | - Bohan Yao
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Nansihuanxilu 119, Fengtai District, Beijing, 100070, China
| | - Lairong Song
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Nansihuanxilu 119, Fengtai District, Beijing, 100070, China
| | - Zirun Li
- China National Clinical Research Center for Neurological Diseases, Beijing, China
| | - Wenyan He
- China National Clinical Research Center for Neurological Diseases, Beijing, China
| | - Yiming Li
- Department of Neurosurgery, Tianjin Medical University General Hospital, TianJin, China
| | - Junpeng Ma
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Nansihuanxilu 119, Fengtai District, Beijing, 100070, China
| | - Liang Wang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Nansihuanxilu 119, Fengtai District, Beijing, 100070, China
| | - Zhen Wu
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Nansihuanxilu 119, Fengtai District, Beijing, 100070, China.
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Sun P, Zhang Z, Zhao J, Zhang H, Lin L, Wang X, Li L, Cao P, Wang Z, Li Z, Yuchi Z, Li Y. Novel Nitrophenyl Substituted Anthranilic Diamide Derivatives: Design, Synthesis, Selectivity, and Antiresistance. J Agric Food Chem 2023; 71:17646-17657. [PMID: 37939255 DOI: 10.1021/acs.jafc.3c03067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2023]
Abstract
Diamide insecticides have gained popularity due to their high efficacy and low toxicity to nontarget organisms. However, diamide-associated resistance has emerged recently, causing a significant reduction in their potency, thereby hindering sustainable agricultural development. Here, we explored novel diamide insecticide analogs and, using a structure-based approach, rationally designed and synthesized 28 nitrophenyl substituted anthranilic diamides. Most of the compounds showed moderate to good activity against Mythimna separata, Plutella xylostella, and Spodoptera frugiperda. Among them, compounds Ia and Im showed extraordinarily high activity and their mode of action was verified on isolated neurons. Additionally, Im exhibited over 10-fold greater potency than chlorantraniliprole in a HEK293 cell line stably expressing S. frugiperda ryanodine receptors (SfRyRs) containing the resistance mutations, G4891E and I4734M. The binding modes of Im in the SfRyRs were predicted using in silico molecular docking analysis. Our novel nitrophenyl substituted anthranilic diamide derivatives provide valuable insights for the design of insecticidal RyR-targeting compounds to effectively control both wild type and diamide insecticide-resistant lepidopteran pests.
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Affiliation(s)
- Pengwei Sun
- State Key Laboratory of Elemento-Organic Chemistry, Department of Chemistry, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Ze Zhang
- State Key Laboratory of Elemento-Organic Chemistry, Department of Chemistry, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Jiahui Zhao
- Tianjin Key Laboratory for Modern Drug Delivery and High-Efficiency, Collaborative Innovation Center of Chemical Science and Engineering, School of Pharmaceutical Science and Technology, Tianjin University, 92 Weijin Road, Tianjin 300072, China
| | - Hongyuan Zhang
- State Key Laboratory of Elemento-Organic Chemistry, Department of Chemistry, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Lianyun Lin
- Tianjin Key Laboratory for Modern Drug Delivery and High-Efficiency, Collaborative Innovation Center of Chemical Science and Engineering, School of Pharmaceutical Science and Technology, Tianjin University, 92 Weijin Road, Tianjin 300072, China
| | - Xinyao Wang
- State Key Laboratory of Elemento-Organic Chemistry, Department of Chemistry, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Linshan Li
- State Key Laboratory of Elemento-Organic Chemistry, Department of Chemistry, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Peng Cao
- Key Laboratory of Drug Targets and Drug Leads for Degenerative Diseases, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing 210023, China
| | - Zhongwen Wang
- State Key Laboratory of Elemento-Organic Chemistry, Department of Chemistry, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Zhengming Li
- State Key Laboratory of Elemento-Organic Chemistry, Department of Chemistry, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Zhiguang Yuchi
- Tianjin Key Laboratory for Modern Drug Delivery and High-Efficiency, Collaborative Innovation Center of Chemical Science and Engineering, School of Pharmaceutical Science and Technology, Tianjin University, 92 Weijin Road, Tianjin 300072, China
| | - Yuxin Li
- State Key Laboratory of Elemento-Organic Chemistry, Department of Chemistry, Nankai University, 94 Weijin Road, Tianjin 300071, China
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, Hunan Normal University, 371 Tongzipo Road, Changsha 410013, Hunan, China
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Seo K, Yamamoto Y, Kirillova A, Kawana M, Yadav S, Huang Y, Wang Q, Lane KV, Pruitt BL, Perez MV, Bernstein D, Wu JC, Wheeler MT, Parikh VN, Ashley EA. Improved Cardiac Performance and Decreased Arrhythmia in Hypertrophic Cardiomyopathy With Non-β-Blocking R-Enantiomer Carvedilol. Circulation 2023; 148:1691-1704. [PMID: 37850394 DOI: 10.1161/circulationaha.123.065017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 09/05/2023] [Indexed: 10/19/2023]
Abstract
BACKGROUND Hypercontractility and arrhythmia are key pathophysiologic features of hypertrophic cardiomyopathy (HCM), the most common inherited heart disease. β-Adrenergic receptor antagonists (β-blockers) are the first-line therapy for HCM. However, β-blockers commonly selected for this disease are often poorly tolerated in patients, where heart-rate reduction and noncardiac effects can lead to reduced cardiac output and fatigue. Mavacamten, myosin ATPase inhibitor recently approved by the US Food and Drug Administration, has demonstrated the ability to ameliorate hypercontractility without lowering heart rate, but its benefits are so far limited to patients with left ventricular (LV) outflow tract obstruction, and its effect on arrhythmia is unknown. METHODS We screened 21 β-blockers for their impact on myocyte contractility and evaluated the antiarrhythmic properties of the most promising drug in a ventricular myocyte arrhythmia model. We then examined its in vivo effect on LV function by hemodynamic pressure-volume loop analysis. The efficacy of the drug was tested in vitro and in vivo compared with current therapeutic options (metoprolol, verapamil, and mavacamten) for HCM in an established mouse model of HCM (Myh6R403Q/+ and induced pluripotent stem cell (iPSC)-derived cardiomyocytes from patients with HCM (MYH7R403Q/+). RESULTS We identified that carvedilol, a β-blocker not commonly used in HCM, suppresses contractile function and arrhythmia by inhibiting RyR2 (ryanodine receptor type 2). Unlike metoprolol (a β1-blocker), carvedilol markedly reduced LV contractility through RyR2 inhibition, while maintaining stroke volume through α1-adrenergic receptor inhibition in vivo. Clinically available carvedilol is a racemic mixture, and the R-enantiomer, devoid of β-blocking effect, retains the ability to inhibit both α1-receptor and RyR2, thereby suppressing contractile function and arrhythmias without lowering heart rate and cardiac output. In Myh6R403Q/+ mice, R-carvedilol normalized hyperdynamic contraction, suppressed arrhythmia, and increased cardiac output better than metoprolol, verapamil, and mavacamten. The ability of R-carvedilol to suppress contractile function was well retained in MYH7R403Q/+ iPSC-derived cardiomyocytes. CONCLUSIONS R-enantiomer carvedilol attenuates hyperdynamic contraction, suppresses arrhythmia, and at the same time, improves cardiac output without lowering heart rate by dual blockade of α1-adrenergic receptor and RyR2 in mouse and human models of HCM. This combination of therapeutic effects is unique among current therapeutic options for HCM and may particularly benefit patients without LV outflow tract obstruction.
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Affiliation(s)
- Kinya Seo
- From the Departments of Medicine (K.S., Y.Y., A.K., M.K., S.Y., Y.H., Q.W., M.V.P., M.T.W., V.N.P., E.A.A.), Stanford University School of Medicine, CA
| | - Yuta Yamamoto
- From the Departments of Medicine (K.S., Y.Y., A.K., M.K., S.Y., Y.H., Q.W., M.V.P., M.T.W., V.N.P., E.A.A.), Stanford University School of Medicine, CA
| | - Anna Kirillova
- From the Departments of Medicine (K.S., Y.Y., A.K., M.K., S.Y., Y.H., Q.W., M.V.P., M.T.W., V.N.P., E.A.A.), Stanford University School of Medicine, CA
| | - Masataka Kawana
- From the Departments of Medicine (K.S., Y.Y., A.K., M.K., S.Y., Y.H., Q.W., M.V.P., M.T.W., V.N.P., E.A.A.), Stanford University School of Medicine, CA
| | - Sunil Yadav
- From the Departments of Medicine (K.S., Y.Y., A.K., M.K., S.Y., Y.H., Q.W., M.V.P., M.T.W., V.N.P., E.A.A.), Stanford University School of Medicine, CA
| | - Yong Huang
- From the Departments of Medicine (K.S., Y.Y., A.K., M.K., S.Y., Y.H., Q.W., M.V.P., M.T.W., V.N.P., E.A.A.), Stanford University School of Medicine, CA
| | - Qianru Wang
- From the Departments of Medicine (K.S., Y.Y., A.K., M.K., S.Y., Y.H., Q.W., M.V.P., M.T.W., V.N.P., E.A.A.), Stanford University School of Medicine, CA
| | - Kerry V Lane
- Departments of Mechanical Engineering (K.V.L., B.L.P.), University of California, Santa Barbara, CA
| | - Beth L Pruitt
- Departments of Mechanical Engineering (K.V.L., B.L.P.), University of California, Santa Barbara, CA
- BioMolecular Science and Engineering (B.L.P.), University of California, Santa Barbara, CA
| | - Marco V Perez
- From the Departments of Medicine (K.S., Y.Y., A.K., M.K., S.Y., Y.H., Q.W., M.V.P., M.T.W., V.N.P., E.A.A.), Stanford University School of Medicine, CA
| | | | - Joseph C Wu
- Cardiovascular Research Institute (J.C.W.), Stanford University School of Medicine, CA
| | - Matthew T Wheeler
- From the Departments of Medicine (K.S., Y.Y., A.K., M.K., S.Y., Y.H., Q.W., M.V.P., M.T.W., V.N.P., E.A.A.), Stanford University School of Medicine, CA
| | - Victoria N Parikh
- From the Departments of Medicine (K.S., Y.Y., A.K., M.K., S.Y., Y.H., Q.W., M.V.P., M.T.W., V.N.P., E.A.A.), Stanford University School of Medicine, CA
| | - Euan A Ashley
- From the Departments of Medicine (K.S., Y.Y., A.K., M.K., S.Y., Y.H., Q.W., M.V.P., M.T.W., V.N.P., E.A.A.), Stanford University School of Medicine, CA
- Genetics (E.A.A.), Stanford University School of Medicine, CA
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Lee TI, Trang NN, Lee TW, Higa S, Kao YH, Chen YC, Chen YJ. Ketogenic Diet Regulates Cardiac Remodeling and Calcium Homeostasis in Diabetic Rat Cardiomyopathy. Int J Mol Sci 2023; 24:16142. [PMID: 38003332 PMCID: PMC10671812 DOI: 10.3390/ijms242216142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 11/02/2023] [Accepted: 11/06/2023] [Indexed: 11/26/2023] Open
Abstract
A ketogenic diet (KD) might alleviate patients with diabetic cardiomyopathy. However, the underlying mechanism remains unclear. Myocardial function and arrhythmogenesis are closely linked to calcium (Ca2+) homeostasis. We investigated the effects of a KD on Ca2+ homeostasis and electrophysiology in diabetic cardiomyopathy. Male Wistar rats were created to have diabetes mellitus (DM) using streptozotocin (65 mg/kg, intraperitoneally), and subsequently treated for 6 weeks with either a normal diet (ND) or a KD. Our electrophysiological and Western blot analyses assessed myocardial Ca2+ homeostasis in ventricular preparations in vivo. Unlike those on the KD, DM rats treated with an ND exhibited a prolonged QTc interval and action potential duration. Compared to the control and DM rats on the KD, DM rats treated with an ND also showed lower intracellular Ca2+ transients, sarcoplasmic reticular Ca2+ content, sodium (Na+)-Ca2+ exchanger currents (reverse mode), L-type Ca2+ contents, sarcoplasmic reticulum ATPase contents, Cav1.2 contents. Furthermore, these rats exhibited elevated ratios of phosphorylated to total proteins across multiple Ca2+ handling proteins, including ryanodine receptor 2 (RyR2) at serine 2808, phospholamban (PLB)-Ser16, and calmodulin-dependent protein kinase II (CaMKII). Additionally, DM rats treated with an ND demonstrated a higher frequency and incidence of Ca2+ leak, cytosolic reactive oxygen species, Na+/hydrogen-exchanger currents, and late Na+ currents than the control and DM rats on the KD. KD treatment may attenuate the effects of DM-dysregulated Na+ and Ca2+ homeostasis, contributing to its cardioprotection in DM.
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Affiliation(s)
- Ting-I Lee
- Division of Endocrinology and Metabolism, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan; (T.-I.L.); (T.-W.L.)
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei 11696, Taiwan
| | | | - Ting-Wei Lee
- Division of Endocrinology and Metabolism, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan; (T.-I.L.); (T.-W.L.)
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei 11696, Taiwan
| | - Satoshi Higa
- Cardiac Electrophysiology and Pacing Laboratory, Division of Cardiovascular Medicine, Makiminato Central Hospital, Makiminato Urasoe City, Okinawa 901-2131, Japan;
| | - Yu-Hsun Kao
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan;
- Department of Medical Education and Research, Wan Fang Hospital, Taipei Medical University, Taipei 11696, Taiwan
| | - Yao-Chang Chen
- Department of Biomedical Engineering, National Defense Medical Center, Taipei 11490, Taiwan
| | - Yi-Jen Chen
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan;
- Cardiovascular Research Center, Wan Fang Hospital, Taipei Medical University, Taipei 11696, Taiwan
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Aitken‐Buck HM, Khaing EP, Lamberts RR, Jones PP. Study of amphipathic metabolites in cardiac pathophysiology: Insights gained from long-chain acylcarnitines and calcium handling. J Cell Mol Med 2023; 27:3641-3645. [PMID: 37688368 PMCID: PMC10660640 DOI: 10.1111/jcmm.17949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 08/16/2023] [Accepted: 08/30/2023] [Indexed: 09/10/2023] Open
Affiliation(s)
- Hamish M. Aitken‐Buck
- Department of Physiology, HeartOtago, School of Biomedical SciencesUniversity of OtagoDunedinNew Zealand
| | - Ei Phyo Khaing
- Department of Physiology, HeartOtago, School of Biomedical SciencesUniversity of OtagoDunedinNew Zealand
| | - Regis R. Lamberts
- Department of Physiology, HeartOtago, School of Biomedical SciencesUniversity of OtagoDunedinNew Zealand
| | - Peter P. Jones
- Department of Physiology, HeartOtago, School of Biomedical SciencesUniversity of OtagoDunedinNew Zealand
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Zhang K, Huang L, Cai Y, Zhong Y, Chen N, Gao F, Zhang L, Li Q, Liu Z, Zhang R, Zhang L, Yue J. Identification of a small chemical as a lysosomal calcium mobilizer and characterization of its ability to inhibit autophagy and viral infection. FEBS J 2023; 290:5353-5372. [PMID: 37528513 DOI: 10.1111/febs.16920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 05/10/2023] [Accepted: 07/31/2023] [Indexed: 08/03/2023]
Abstract
We previously identified glyceraldehyde 3-phosphate dehydrogenase (GAPDH) as one of the cyclic adenosine diphosphoribose (cADPR)'s binding proteins and found that GAPDH participates in cADPR-mediated Ca2+ release from endoplasmic reticulum via ryanodine receptors (RyRs). Here, we aimed to chemically synthesise and pharmacologically characterise novel cADPR analogues. Based on the simulated cADPR-GAPDH complex structure, we performed the structure-based drug screening, identified several small chemicals with high docking scores to cADPR's binding pocket in GAPDH and showed that two of these compounds, C244 and C346, are potential cADPR antagonists. We further synthesised several analogues of C346 and found that its analogue, G42, also mobilised Ca2+ release from lysosomes. G42 alkalised lysosomal pH and inhibited autophagosome-lysosome fusion. Moreover, G42 markedly inhibited Zika virus (ZIKV, a flavivirus) or murine hepatitis virus (MHV, a β-coronavirus) infections of host cells. These results suggest that G42 inhibits virus infection, likely by triggering lysosomal Ca2+ mobilisation and inhibiting autophagy.
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Affiliation(s)
- Kehui Zhang
- State Key Laboratory of Bioactive Substance and Function of Natual Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
- Beijing Key Laboratory of Active Substances Discovery and Druggability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Lihong Huang
- State Key Laboratory for Animal Disease Control and Prevention, South China Agricultural University, Guangzhou, China
- Key Laboratory of Zoonoses, Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou, China
| | - Yang Cai
- Department of Biomedical Sciences, City University of Hong Kong, China
- City University of Hong Kong Shenzhen Research Institute, China
| | - Yi Zhong
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Nanjun Chen
- Department of Computer Science, City University of Hong Kong, China
| | - Fei Gao
- State Key Laboratory for Animal Disease Control and Prevention, South China Agricultural University, Guangzhou, China
- Key Laboratory of Zoonoses, Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou, China
| | - Liang Zhang
- Department of Biomedical Sciences, City University of Hong Kong, China
- City University of Hong Kong Shenzhen Research Institute, China
| | - Qi Li
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Zhenming Liu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Rongxin Zhang
- Laboratory of Immunology and Inflammation, Institute of Basic Medical Sciences, Guangdong Pharmaceutical University, Guangzhou, China
- Department of Biotechnology, School of Life Sciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, China
| | - Liangren Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Jianbo Yue
- City University of Hong Kong Shenzhen Research Institute, China
- Division of Natural and Applied Sciences, Duke Kunshan University, Kunshan, China
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Liu B, Zhu X, Zhou Q, Su Y, Qian Y, Ma Z, Gu X, Xia T. Activating ryanodine receptor improves isoflurane-induced cognitive dysfunction. Brain Res Bull 2023; 204:110790. [PMID: 37852420 DOI: 10.1016/j.brainresbull.2023.110790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Revised: 09/30/2023] [Accepted: 10/16/2023] [Indexed: 10/20/2023]
Abstract
BACKGROUND Postoperative cognitive dysfunction (POCD) is characterized by impaired learning and memory. 6 h duration isoflurane anesthesia is an important factor to induce POCD, and the dysfunction of ryanodine receptor (RyR) in the hippocampus may be involved in this process. We investigated the expression of RyR3 in the hippocampus of mice after 6-h duration isoflurane anesthesia, as well as the improvement of RyR receptor agonist caffeine on POCD mice, while attempting to identify the underlying molecular mechanism. MATERIALS We constructed a POCD model using 8-week-old male C57BL/6J mice that were exposed to 6-h duration isoflurane. Prior to the three-day cognitive behavioral experiment, RyR agonist caffeine were injected. Fear conditioning and location memory tests were used in behavioral studies. We also exposed the mouse neuroblastoma cell line Neuro-2a (N2A) to 6-h duration isoflurane exposure to simulate the conditions of in vivo cognitive dysfunction. We administered ryanodine receptor agonist (caffeine) and inhibitor (ryanodine) to N2a cells. Following that, we performed a series of bioinformatics analysis to discover proteins that are involved in the development of cognitive dysfunction. Rt-PCR and Western blot were used to assess mRNA level and protein expression. RESULTS 6-h duration isoflurane anesthesia induced cognitive dysfunction and increased RyR3 mRNA levels in hippocampus. The mRNA levels of RyR3 in cultured N2a cells after anesthesia were comparable to those in vivo, and the RyR agonist caffeine corrected the expression of some cognitive-related phenotypic proteins that were disturbed after anesthesia. Intraperitoneal injection of RyR agonist caffeine can improve cognitive function after isoflurane anesthesia in mice, and bioinformatics analyses suggest that CaMKⅣ may be involved in the molecular mechanism. CONCLUSION Ryanodine receptor agonist caffeine may improve cognitive dysfunction in mice after isoflurane anesthesia.
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Affiliation(s)
- Binwen Liu
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Medical School of Nanjing University, Nanjing 210008, China; Medical School, Nanjing University, Nanjing 210093, China; Jiangsu Key Laboratory of Molecular Medicine, Nanjing University, Nanjing, China; State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing, China.
| | - Xurui Zhu
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Medical School of Nanjing University, Nanjing 210008, China.
| | - Qingyun Zhou
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Medical School of Nanjing University, Nanjing 210008, China; Medical School, Nanjing University, Nanjing 210093, China; Jiangsu Key Laboratory of Molecular Medicine, Nanjing University, Nanjing, China; State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing, China.
| | - Yan Su
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Medical School of Nanjing University, Nanjing 210008, China; Medical School, Nanjing University, Nanjing 210093, China; Jiangsu Key Laboratory of Molecular Medicine, Nanjing University, Nanjing, China; State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing, China.
| | - Yue Qian
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Medical School of Nanjing University, Nanjing 210008, China.
| | - Zhengliang Ma
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Medical School of Nanjing University, Nanjing 210008, China.
| | - Xiaoping Gu
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Medical School of Nanjing University, Nanjing 210008, China.
| | - Tianjiao Xia
- Medical School, Nanjing University, Nanjing 210093, China; Jiangsu Key Laboratory of Molecular Medicine, Nanjing University, Nanjing, China; State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing, China.
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Thanassoulas A, Theodoridou M, Barrak L, Riguene E, Alyaarabi T, Elrayess MA, Lai FA, Nomikos M. Arrhythmia-Associated Calmodulin E105A Mutation Alters the Binding Affinity of CaM to a Ryanodine Receptor 2 CaM-Binding Pocket. Int J Mol Sci 2023; 24:15630. [PMID: 37958614 PMCID: PMC10649572 DOI: 10.3390/ijms242115630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 10/21/2023] [Accepted: 10/24/2023] [Indexed: 11/15/2023] Open
Abstract
Calmodulin (CaM) is a small, multifunctional calcium (Ca2+)-binding sensor that binds and regulates the open probability of cardiac ryanodine receptor 2 (RyR2) at both low and high cytosolic Ca2+ concentrations. Recent isothermal titration calorimetry (ITC) studies of a number of peptides that correspond to different regions of human RyR2 showed that two regions of human RyR2 (3584-3602aa and 4255-4271aa) bind with high affinity to CaM, suggesting that these two regions might contribute to a putative RyR2 intra-subunit CaM-binding pocket. Moreover, a previously characterized de novo long QT syndrome (LQTS)-associated missense CaM mutation (E105A) which was identified in a 6-year-old boy, who experienced an aborted first episode of cardiac arrest revealed that this mutation dysregulates normal cardiac function in zebrafish by a complex mechanism that involves alterations in both CaM-Ca2+ and CaM-RyR2 interactions. Herein, to gain further insight into how the CaM E105A mutation leads to severe cardiac arrhythmia, we generated large quantities of recombinant CaMWT and CaME105A proteins. We then performed ITC experiments to investigate and compare the interactions of CaMWT and CaME105A mutant protein with two synthetic peptides that correspond to the two aforementioned human RyR2 regions, which we have proposed to contribute to the RyR2 CaM-binding pocket. Our data reveal that the E105A mutation has a significant negative effect on the interaction of CaM with both RyR2 regions in the presence and absence of Ca2+, highlighting the potential contribution of these two human RyR2 regions to an RyR2 CaM-binding pocket, which may be essential for physiological CaM/RyR2 association and thus channel regulation.
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Affiliation(s)
- Angelos Thanassoulas
- College of Medicine, QU Health, Qatar University, Doha P.O. Box 2713, Qatar; (A.T.); (L.B.); (E.R.); (T.A.); (M.A.E.); (F.A.L.)
| | - Maria Theodoridou
- Biomedical Research Center, Qatar University, Doha P.O. Box 2713, Qatar;
| | - Laila Barrak
- College of Medicine, QU Health, Qatar University, Doha P.O. Box 2713, Qatar; (A.T.); (L.B.); (E.R.); (T.A.); (M.A.E.); (F.A.L.)
| | - Emna Riguene
- College of Medicine, QU Health, Qatar University, Doha P.O. Box 2713, Qatar; (A.T.); (L.B.); (E.R.); (T.A.); (M.A.E.); (F.A.L.)
| | - Tamader Alyaarabi
- College of Medicine, QU Health, Qatar University, Doha P.O. Box 2713, Qatar; (A.T.); (L.B.); (E.R.); (T.A.); (M.A.E.); (F.A.L.)
| | - Mohamed A. Elrayess
- College of Medicine, QU Health, Qatar University, Doha P.O. Box 2713, Qatar; (A.T.); (L.B.); (E.R.); (T.A.); (M.A.E.); (F.A.L.)
- Biomedical Research Center, Qatar University, Doha P.O. Box 2713, Qatar;
| | - F. Anthony Lai
- College of Medicine, QU Health, Qatar University, Doha P.O. Box 2713, Qatar; (A.T.); (L.B.); (E.R.); (T.A.); (M.A.E.); (F.A.L.)
| | - Michail Nomikos
- College of Medicine, QU Health, Qatar University, Doha P.O. Box 2713, Qatar; (A.T.); (L.B.); (E.R.); (T.A.); (M.A.E.); (F.A.L.)
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Šeflová J, Schwarz JA, Smith AN, Svensson B, Blackwell DJ, Phillips TA, Nikolaienko R, Bovo E, Rebbeck RT, Zima AV, Thomas DD, Van Petegem F, Knollmann BC, Johnston JN, Robia SL, Cornea RL. RyR2 Binding of an Antiarrhythmic Cyclic Depsipeptide Mapped Using Confocal Fluorescence Lifetime Detection of FRET. ACS Chem Biol 2023; 18:2290-2299. [PMID: 37769131 DOI: 10.1021/acschembio.3c00376] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/30/2023]
Abstract
Hyperactivity of cardiac sarcoplasmic reticulum (SR) ryanodine receptor (RyR2) Ca2+-release channels contributes to heart failure and arrhythmias. Reducing the RyR2 activity, particularly during cardiac relaxation (diastole), is a desirable therapeutic goal. We previously reported that the unnatural enantiomer (ent) of an insect-RyR activator, verticilide, inhibits porcine and mouse RyR2 at diastolic (nanomolar) Ca2+ and has in vivo efficacy against atrial and ventricular arrhythmia. To determine the ent-verticilide structural mode of action on RyR2 and guide its further development via medicinal chemistry structure-activity relationship studies, here, we used fluorescence lifetime (FLT)-measurements of Förster resonance energy transfer (FRET) in HEK293 cells expressing human RyR2. For these studies, we used an RyR-specific FRET molecular-toolkit and computational methods for trilateration (i.e., using distances to locate a point of interest). Multiexponential analysis of FLT-FRET measurements between four donor-labeled FKBP12.6 variants and acceptor-labeled ent-verticilide yielded distance relationships placing the acceptor probe at two candidate loci within the RyR2 cryo-EM map. One locus is within the Ry12 domain (at the corner periphery of the RyR2 tetrameric complex). The other locus is sandwiched at the interface between helical domain 1 and the SPRY3 domain. These findings document RyR2-target engagement by ent-verticilide, reveal new insight into the mechanism of action of this new class of RyR2-targeting drug candidate, and can serve as input in future computational determinations of the ent-verticilide binding site on RyR2 that will inform structure-activity studies for lead optimization.
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Affiliation(s)
- Jaroslava Šeflová
- Department of Cell and Molecular Physiology, Loyola University Chicago, Chicago, Illinois 60153, United States
| | - Jacob A Schwarz
- Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Abigail N Smith
- Department of Chemistry & Vanderbilt Institute of Chemical Biology, Vanderbilt University, Nashville, Tennessee 37235, United States
| | - Bengt Svensson
- Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Daniel J Blackwell
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee 37232, United States
| | - Taylor A Phillips
- Department of Cell and Molecular Physiology, Loyola University Chicago, Chicago, Illinois 60153, United States
| | - Roman Nikolaienko
- Department of Cell and Molecular Physiology, Loyola University Chicago, Chicago, Illinois 60153, United States
| | - Elisa Bovo
- Department of Cell and Molecular Physiology, Loyola University Chicago, Chicago, Illinois 60153, United States
| | - Robyn T Rebbeck
- Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Aleksey V Zima
- Department of Cell and Molecular Physiology, Loyola University Chicago, Chicago, Illinois 60153, United States
| | - David D Thomas
- Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Filip Van Petegem
- Department of Biochemistry and Molecular Biology, Life Sciences Centre, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Björn C Knollmann
- Department of Chemistry & Vanderbilt Institute of Chemical Biology, Vanderbilt University, Nashville, Tennessee 37235, United States
| | - Jeffrey N Johnston
- Department of Chemistry & Vanderbilt Institute of Chemical Biology, Vanderbilt University, Nashville, Tennessee 37235, United States
| | - Seth L Robia
- Department of Cell and Molecular Physiology, Loyola University Chicago, Chicago, Illinois 60153, United States
| | - Răzvan L Cornea
- Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, Minnesota 55455, United States
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Toth N, Zhang XH, Zamaro A, Morad M. Calcium Signaling Consequences of RyR2-S4938F Mutation Expressed in Human iPSC-Derived Cardiomyocytes. Int J Mol Sci 2023; 24:15307. [PMID: 37894987 PMCID: PMC10607246 DOI: 10.3390/ijms242015307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 10/02/2023] [Accepted: 10/14/2023] [Indexed: 10/29/2023] Open
Abstract
Type-2 ryanodine receptor (RyR2) is the major Ca2+ release channel of the cardiac sarcoplasmic reticulum (SR) that controls the rhythm and strength of the heartbeat, but its malfunction may generate severe arrhythmia leading to sudden cardiac death or heart failure. S4938F-RyR2 mutation in the carboxyl-terminal was expressed in human induced pluripotent stem cells derived cardiomyocytes (hiPSC-CMs) using CRISPR/Cas9 gene-editing technique. Ca2+ signaling and electrophysiological properties of beating cardiomyocytes carrying the mutation were studied using total internal reflection fluorescence microscopy (TIRF) and patch clamp technique. In mutant cells, L-type Ca2+ currents (ICa), measured either by depolarizations to zero mV or repolarizations from +100 mV to -50 mV, and their activated Ca2+ transients were significantly smaller, despite their larger caffeine-triggered Ca2+ release signals compared to wild type (WT) cells, suggesting ICa-induced Ca2+ release (CICR) was compromised. The larger SR Ca2+ content of S4938F-RyR2 cells may underlie the higher frequency of spontaneously occurring Ca2+ sparks and Ca2+ transients and their arrhythmogenic phenotype.
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Affiliation(s)
- Noemi Toth
- Cardiac Signaling Center, University of South Carolina, Medical University of South Carolina and Clemson University, Charleston, SC 29425, USA; (N.T.); (X.-H.Z.)
| | - Xiao-Hua Zhang
- Cardiac Signaling Center, University of South Carolina, Medical University of South Carolina and Clemson University, Charleston, SC 29425, USA; (N.T.); (X.-H.Z.)
| | - Alexandra Zamaro
- Cardiac Signaling Center, University of South Carolina, Medical University of South Carolina and Clemson University, Charleston, SC 29425, USA; (N.T.); (X.-H.Z.)
| | - Martin Morad
- Cardiac Signaling Center, University of South Carolina, Medical University of South Carolina and Clemson University, Charleston, SC 29425, USA; (N.T.); (X.-H.Z.)
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, SC 29425, USA
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