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Yang X, Bu X, Li Y, Shen R, Duan Y, Liu M, Ma X, Guo Z, Chen C, He L, Shi H, Kong X, Zhang L. Effects of oxidative stress and protein S-nitrosylation interactions on mitochondrial pathway apoptosis and tenderness of yak meat during postmortem aging. Food Res Int 2024; 191:114717. [PMID: 39059914 DOI: 10.1016/j.foodres.2024.114717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2024] [Revised: 06/28/2024] [Accepted: 06/28/2024] [Indexed: 07/28/2024]
Abstract
To reveal the interaction of oxidative stress and protein S-nitrosylation on mitochondrial pathway apoptosis and tenderness development in postmortem yak meat. Herein, we selected yak longissimus dorsi muscle as the research object and treated hydrogen peroxide (H2O2) with S-nitrosoglutathione agent (GSNO) as well as Nω-nitro-L-arginine methyl ester hydrochloride (L-NAME) in mixed injections with 0.9 % saline as a control group, followed by incubation at 4 °C for 12, 24, 72, 120 and 168 h. Results showed that this interaction significantly increased mitochondrial ROS and NO content (P < 0.05) while weakening the antioxidant capacity of GSH and TRX redox response systems or accelerating the Ca2+ release process, leading to mitochondrial functional impairment and increased apoptosis rate. Notably, the H2O2 + L-NAME group showed more pronounced apoptosis. Hence, we suggest that the interaction between oxidative stress and protein S-nitrosylation could positively regulate yak meat tenderization.
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Affiliation(s)
- Xue Yang
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, China
| | - Xinrong Bu
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, China
| | - Yiheng Li
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, China
| | - Ruheng Shen
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, China
| | - Yufeng Duan
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, China
| | - Mengying Liu
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, China
| | - Xiaotong Ma
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, China
| | - Zhaobin Guo
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, China
| | - Cheng Chen
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, China
| | - Long He
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, China
| | - Hongmei Shi
- Gansu Gannan Animal Husbandry and Veterinary Workstation, Gannan 747000, China
| | - Xiangying Kong
- Qinghai Haibei Animal Husbandry and Veterinary Science Research Institute, Haibei 812200, China
| | - Li Zhang
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, China.
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2
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Romero-Martínez BS, Flores-Soto E, Sommer B, Reyes-García J, Arredondo-Zamarripa D, Solís-Chagoyán H, Lemini C, Rivero-Segura NA, Santiago-de-la-Cruz JA, Pérez-Plascencia C, Montaño LM. 17β-estradiol induces hyperresponsiveness in guinea pig airway smooth muscle by inhibiting the plasma membrane Ca 2+-ATPase. Mol Cell Endocrinol 2024; 590:112273. [PMID: 38763427 DOI: 10.1016/j.mce.2024.112273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 05/16/2024] [Accepted: 05/17/2024] [Indexed: 05/21/2024]
Abstract
High serum estrogen concentrations are associated with asthma development and severity, suggesting a link between estradiol and airway hyperresponsiveness (AHR). 17β-estradiol (E2) has non-genomic effects via Ca2+ regulatory mechanisms; however, its effect on the plasma membrane Ca2+-ATPases (PMCA1 and 4) and sarcoplasmic reticulum Ca2+-ATPase (SERCA) is unknown. Hence, in the present study, we aim to demonstrate if E2 favors AHR by increasing intracellular Ca2+ concentrations in guinea pig airway smooth muscle (ASM) through a mechanism involving Ca2+-ATPases. In guinea pig ASM, Ca2+ microfluorometry, muscle contraction, and Western blot were evaluated. Then, we performed molecular docking analysis between the estrogens and Ca2+ ATPases. In tracheal rings, E2 produced AHR to carbachol. In guinea pig myocytes, acute exposure to physiological levels of E2 modified the transient Ca2+ peak induced by caffeine to a Ca2+ plateau. The incubation with PMCA inhibitors (lanthanum and carboxyeosin, CE) partially reversed the E2-induced sustained plateau in the caffeine response. In contrast, cyclopiazonic acid (SERCA inhibitor), U-0126 (an inhibitor of ERK 1/2), and choline chloride did not modify the Ca2+ plateau produced by E2. The mitochondrial uniporter activity and the capacitative Ca2+ entry were unaffected by E2. In guinea pig ASM, Western blot analysis demonstrated PMCA1 and PMCA4 expression. The results from the docking modeling demonstrate that E2 binds to both plasma membrane ATPases. In guinea pig tracheal smooth muscle, inhibiting the PMCA with CE, induced hyperresponsiveness to carbachol. 17β-estradiol produces hyperresponsiveness by inhibiting the PMCA in the ASM and could be one of the mechanisms responsible for the increase in asthmatic crisis in women.
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Affiliation(s)
- Bianca S Romero-Martínez
- Departamento de Farmacología, Facultad de Medicina, Universidad Nacional Autónoma de México, Av. Universidad No. 3000, Alcaldía de Coyoacán, CP 04510, CDMX, México
| | - Edgar Flores-Soto
- Departamento de Farmacología, Facultad de Medicina, Universidad Nacional Autónoma de México, Av. Universidad No. 3000, Alcaldía de Coyoacán, CP 04510, CDMX, México
| | - Bettina Sommer
- Departamento de Investigación en Hiperreactividad Bronquial, Instituto Nacional de Enfermedades Respiratorias, Calz. De Tlalpan 4502, Col. Sección XVI, Alcaldía de Tlalpan, CP 14080, CDMX, México
| | - Jorge Reyes-García
- Departamento de Farmacología, Facultad de Medicina, Universidad Nacional Autónoma de México, Av. Universidad No. 3000, Alcaldía de Coyoacán, CP 04510, CDMX, México
| | - David Arredondo-Zamarripa
- Departamento de Farmacología, Facultad de Medicina, Universidad Nacional Autónoma de México, Av. Universidad No. 3000, Alcaldía de Coyoacán, CP 04510, CDMX, México
| | - Héctor Solís-Chagoyán
- Neurociencia Cognitiva Evolutiva, Centro de Investigación en Ciencias Cognitivas, Universidad Autónoma Del Estado de Morelos, CP 62209, Morelos, México
| | - Cristina Lemini
- Departamento de Farmacología, Facultad de Medicina, Universidad Nacional Autónoma de México, Av. Universidad No. 3000, Alcaldía de Coyoacán, CP 04510, CDMX, México
| | - Nadia A Rivero-Segura
- Dirección de Investigación, Instituto Nacional de Geriatría (INGER), Ciudad de México, CP 10200, México
| | | | - Carlos Pérez-Plascencia
- Unidad de Genómica y Cáncer, Subdirección de Investigación Básica, INCan, SSA, Av. San Fernando 22, Alcaldía de Tlalpan, CP 14080, CDMX, México; Facultad de Estudios Superiores Iztacala, Av. de Los Barrios S/N Los Reyes Ixtacala Tlalnepantla de Baz, Edo. de México, CP 54090, Tlalnepantla de Baz, México
| | - Luis M Montaño
- Departamento de Farmacología, Facultad de Medicina, Universidad Nacional Autónoma de México, Av. Universidad No. 3000, Alcaldía de Coyoacán, CP 04510, CDMX, México.
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3
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Thirup Larsen S, Karlsen Dannersø J, Juul Fælled Nielsen C, Rosager Poulsen L, Palmgren M, Nissen P. Conserved N-terminal Regulation of the ACA8 Calcium Pump with Two Calmodulin Binding Sites. J Mol Biol 2024:168747. [PMID: 39168442 DOI: 10.1016/j.jmb.2024.168747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 07/30/2024] [Accepted: 08/14/2024] [Indexed: 08/23/2024]
Abstract
The autoinhibited plasma membrane calcium ATPase ACA8 from A. thaliana has an N-terminal autoinhibitory domain. Binding of calcium-loaded calmodulin at two sites located at residues 42-62 and 74-96 relieves autoinhibition of ACA8 activity. Through activity studies and a yeast complementation assay we investigated wild-type (WT) and N-terminally truncated ACA8 constructs (Δ20, Δ30, Δ35, Δ37, Δ40, Δ74 and Δ100) to explore the role of conserved motifs in the N-terminal segment preceding the calmodulin binding sites. Furthermore, we purified WT, Δ20- and Δ100-ACA8, tested activity in vitro and performed structural studies of purified Δ20-ACA8 stabilized in a lipid nanodisc to explore the mechanism of autoinhibition. We show that an N-terminal segment between residues 20 and 35 including conserved Phe32, upstream of the calmodulin binding sites, is important for autoinhibition and the activation by calmodulin. Cryo-EM structure determination at 3.3 Å resolution of a beryllium fluoride inhibited E2 form, and at low resolution for an E1 state combined with AlphaFold prediction provide a model for autoinhibition, consistent with the mutational studies.
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Affiliation(s)
- Sigrid Thirup Larsen
- Department of Molecular Biology and Genetics, Aarhus University, Aarhus, Denmark; Danish Research Institute of Translational Neuroscience - DANDRITE, Aarhus University, Aarhus, Denmark
| | - Josephine Karlsen Dannersø
- Department of Molecular Biology and Genetics, Aarhus University, Aarhus, Denmark; Danish Research Institute of Translational Neuroscience - DANDRITE, Aarhus University, Aarhus, Denmark
| | - Christine Juul Fælled Nielsen
- Department of Molecular Biology and Genetics, Aarhus University, Aarhus, Denmark; Danish Research Institute of Translational Neuroscience - DANDRITE, Aarhus University, Aarhus, Denmark
| | - Lisbeth Rosager Poulsen
- Department of Plant and Environmental Sciences, Copenhagen University, Thorvaldsensvej 40, DK-1871, Denmark
| | - Michael Palmgren
- Department of Plant and Environmental Sciences, Copenhagen University, Thorvaldsensvej 40, DK-1871, Denmark
| | - Poul Nissen
- Department of Molecular Biology and Genetics, Aarhus University, Aarhus, Denmark; Danish Research Institute of Translational Neuroscience - DANDRITE, Aarhus University, Aarhus, Denmark.
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4
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de Antonellis P, Ferrucci V, Miceli M, Bibbo F, Asadzadeh F, Gorini F, Mattivi A, Boccia A, Russo R, Andolfo I, Lasorsa VA, Cantalupo S, Fusco G, Viscardi M, Brandi S, Cerino P, Monaco V, Choi DR, Cheong JH, Iolascon A, Amente S, Monti M, Fava LL, Capasso M, Kim HY, Zollo M. Targeting ATP2B1 impairs PI3K/Akt/FOXO signaling and reduces SARS-COV-2 infection and replication. EMBO Rep 2024; 25:2974-3007. [PMID: 38816514 PMCID: PMC11239940 DOI: 10.1038/s44319-024-00164-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 05/02/2024] [Accepted: 05/07/2024] [Indexed: 06/01/2024] Open
Abstract
ATP2B1 is a known regulator of calcium (Ca2+) cellular export and homeostasis. Diminished levels of intracellular Ca2+ content have been suggested to impair SARS-CoV-2 replication. Here, we demonstrate that a nontoxic caloxin-derivative compound (PI-7) reduces intracellular Ca2+ levels and impairs SARS-CoV-2 infection. Furthermore, a rare homozygous intronic variant of ATP2B1 is shown to be associated with the severity of COVID-19. The mechanism of action during SARS-CoV-2 infection involves the PI3K/Akt signaling pathway activation, inactivation of FOXO3 transcription factor function, and subsequent transcriptional inhibition of the membrane and reticulum Ca2+ pumps ATP2B1 and ATP2A1, respectively. The pharmacological action of compound PI-7 on sustaining both ATP2B1 and ATP2A1 expression reduces the intracellular cytoplasmic Ca2+ pool and thus negatively influences SARS-CoV-2 replication and propagation. As compound PI-7 lacks toxicity in vitro, its prophylactic use as a therapeutic agent against COVID-19 is envisioned here.
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Affiliation(s)
- Pasqualino de Antonellis
- CEINGE Biotecnologie Avanzate, Naples, 80145, Italy
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche (DMMBM), 'Federico II' University of Naples, Naples, 80131, Italy
- Elysium Cell Bio Ita SRL, Via Gaetano Salvatore 486, 80145, Naples, Italy
| | - Veronica Ferrucci
- CEINGE Biotecnologie Avanzate, Naples, 80145, Italy
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche (DMMBM), 'Federico II' University of Naples, Naples, 80131, Italy
- Elysium Cell Bio Ita SRL, Via Gaetano Salvatore 486, 80145, Naples, Italy
| | - Marco Miceli
- CEINGE Biotecnologie Avanzate, Naples, 80145, Italy
| | - Francesca Bibbo
- CEINGE Biotecnologie Avanzate, Naples, 80145, Italy
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche (DMMBM), 'Federico II' University of Naples, Naples, 80131, Italy
| | - Fatemeh Asadzadeh
- CEINGE Biotecnologie Avanzate, Naples, 80145, Italy
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche (DMMBM), 'Federico II' University of Naples, Naples, 80131, Italy
- European School of Molecular Medicine, SEMM, Naples, Italy
| | - Francesca Gorini
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche (DMMBM), 'Federico II' University of Naples, Naples, 80131, Italy
| | - Alessia Mattivi
- Armenise-Harvard Laboratory of Cell Division, Department of Cellular Computational and Integrative Biology-CIBIO, University of Trento, Trento, Italy
| | | | - Roberta Russo
- CEINGE Biotecnologie Avanzate, Naples, 80145, Italy
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche (DMMBM), 'Federico II' University of Naples, Naples, 80131, Italy
| | - Immacolata Andolfo
- CEINGE Biotecnologie Avanzate, Naples, 80145, Italy
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche (DMMBM), 'Federico II' University of Naples, Naples, 80131, Italy
| | | | | | - Giovanna Fusco
- Istituto Zooprofilattico Sperimentale del Mezzogiorno, Naples, 80055, Italy
| | - Maurizio Viscardi
- Istituto Zooprofilattico Sperimentale del Mezzogiorno, Naples, 80055, Italy
| | - Sergio Brandi
- Istituto Zooprofilattico Sperimentale del Mezzogiorno, Naples, 80055, Italy
| | - Pellegrino Cerino
- Istituto Zooprofilattico Sperimentale del Mezzogiorno, Naples, 80055, Italy
| | - Vittoria Monaco
- CEINGE Biotecnologie Avanzate, Naples, 80145, Italy
- Department of Chemical Sciences, University 'Federico II' University of Naples, Naples, 80125, Italy
| | - Dong-Rac Choi
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
- Elysiumbio Inc., #2007, Samsung Cheil B/D, 309, Teheran-ro, Gangnam-gu, Seoul, 06151, Korea
| | - Jae-Ho Cheong
- Department of Surgery, Yonsei University College of Medicine, Seoul, Korea
| | - Achille Iolascon
- CEINGE Biotecnologie Avanzate, Naples, 80145, Italy
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche (DMMBM), 'Federico II' University of Naples, Naples, 80131, Italy
| | - Stefano Amente
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche (DMMBM), 'Federico II' University of Naples, Naples, 80131, Italy
| | - Maria Monti
- CEINGE Biotecnologie Avanzate, Naples, 80145, Italy
- Department of Chemical Sciences, University 'Federico II' University of Naples, Naples, 80125, Italy
| | - Luca L Fava
- Armenise-Harvard Laboratory of Cell Division, Department of Cellular Computational and Integrative Biology-CIBIO, University of Trento, Trento, Italy
| | - Mario Capasso
- CEINGE Biotecnologie Avanzate, Naples, 80145, Italy
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche (DMMBM), 'Federico II' University of Naples, Naples, 80131, Italy
| | - Hong-Yeoul Kim
- Elysiumbio Inc., #2007, Samsung Cheil B/D, 309, Teheran-ro, Gangnam-gu, Seoul, 06151, Korea
| | - Massimo Zollo
- CEINGE Biotecnologie Avanzate, Naples, 80145, Italy.
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche (DMMBM), 'Federico II' University of Naples, Naples, 80131, Italy.
- Elysium Cell Bio Ita SRL, Via Gaetano Salvatore 486, 80145, Naples, Italy.
- European School of Molecular Medicine, SEMM, Naples, Italy.
- DAI Medicina di Laboratorio e Trasfusionale, 'Federico II' University of Naples, 80131, Naples, Italy.
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5
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Ge WD, Du TT, Wang CY, Sun LN, Wang YQ. Calcium signaling crosstalk between the endoplasmic reticulum and mitochondria, a new drug development strategies of kidney diseases. Biochem Pharmacol 2024; 225:116278. [PMID: 38740223 DOI: 10.1016/j.bcp.2024.116278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 04/25/2024] [Accepted: 05/10/2024] [Indexed: 05/16/2024]
Abstract
Calcium (Ca2+) acts as a second messenger and constitutes a complex and large information exchange system between the endoplasmic reticulum (ER) and mitochondria; this process is involved in various life activities, such as energy metabolism, cell proliferation and apoptosis. Increasing evidence has suggested that alterations in Ca2+ crosstalk between the ER and mitochondria, including alterations in ER and mitochondrial Ca2+ channels and related Ca2+ regulatory proteins, such as sarco/endoplasmic reticulum Ca2+-ATPase (SERCA), inositol 1,4,5-trisphosphate receptor (IP3R), and calnexin (CNX), are closely associated with the development of kidney disease. Therapies targeting intracellular Ca2+ signaling have emerged as an emerging field in the treatment of renal diseases. In this review, we focused on recent advances in Ca2+ signaling, ER and mitochondrial Ca2+ monitoring methods and Ca2+ homeostasis in the development of renal diseases and sought to identify new targets and insights for the treatment of renal diseases by targeting Ca2+ channels or related Ca2+ regulatory proteins.
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Affiliation(s)
- Wen-Di Ge
- Research Division of Clinical Pharmacology, the First Affiliated Hospital of Nanjing Medical University & Jiangsu Province Hospital, Nanjing, China; Department of Pharmacy, Nanjing Medical University, Nanjing, China
| | - Tian-Tian Du
- Research Division of Clinical Pharmacology, the First Affiliated Hospital of Nanjing Medical University & Jiangsu Province Hospital, Nanjing, China; Department of Pharmacy, Nanjing Medical University, Nanjing, China
| | - Cao-Yang Wang
- Research Division of Clinical Pharmacology, the First Affiliated Hospital of Nanjing Medical University & Jiangsu Province Hospital, Nanjing, China; Department of Pharmacy, Nanjing Medical University, Nanjing, China
| | - Lu-Ning Sun
- Research Division of Clinical Pharmacology, the First Affiliated Hospital of Nanjing Medical University & Jiangsu Province Hospital, Nanjing, China; Department of Pharmacy, Nanjing Medical University, Nanjing, China.
| | - Yong-Qing Wang
- Research Division of Clinical Pharmacology, the First Affiliated Hospital of Nanjing Medical University & Jiangsu Province Hospital, Nanjing, China; Department of Pharmacy, Nanjing Medical University, Nanjing, China.
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6
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Echavarría JAC, El Hajj S, Irankunda R, Selmeczi K, Paris C, Udenigwe CC, Canabady-Rochelle L. Screening, separation and identification of metal-chelating peptides for nutritional, cosmetics and pharmaceutical applications. Food Funct 2024; 15:3300-3326. [PMID: 38488016 DOI: 10.1039/d3fo05765h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Metal-chelating peptides, which form metal-peptide coordination complexes with various metal ions, can be used as biofunctional ingredients notably to enhance human health and prevent diseases. This review aims to discuss recent insights into food-derived metal-chelating peptides, the strategies set up for their discovery, their study, and identification. After understanding the overall properties of metal-chelating peptides, their production from food-derived protein sources and their potential applications will be discussed, particularly in nutritional, cosmetics and pharmaceutical fields. In addition, the review provides an overview of the last decades of progress in discovering food-derived metal-chelating peptides, addressing several screening, separation and identification methodologies. Furthermore, it emphasizes the methods used to assess peptide-metal interaction, allowing for better understanding of chemical and thermodynamic parameters associated with the formation of peptide-metal coordination complexes, as well as the specific amino acid residues that play important roles in the metal ion coordination.
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Affiliation(s)
| | - Sarah El Hajj
- Université de Lorraine, CNRS, LRGP, F-54000 Nancy, France.
| | | | | | - Cédric Paris
- Université de Lorraine, LIBIO, F-54000 Nancy, France
| | - Chibuike C Udenigwe
- School of Nutrition Science, University of Ottawa, Ottawa, Ontario, K1H 8M5, Canada
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7
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Sapienza S, Tedeschi V, Apicella B, Pannaccione A, Russo C, Sisalli MJ, Magliocca G, Loffredo S, Secondo A. Ultrafine particulate matter pollution and dysfunction of endoplasmic reticulum Ca 2+ store: A pathomechanism shared with amyotrophic lateral sclerosis motor neurons? ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 273:116104. [PMID: 38377779 DOI: 10.1016/j.ecoenv.2024.116104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 01/29/2024] [Accepted: 02/09/2024] [Indexed: 02/22/2024]
Abstract
Increased risk of neurodegenerative diseases has been envisaged for air pollution exposure. On the other hand, environmental risk factors, including air pollution, have been suggested for Amyotrophic Lateral Sclerosis (ALS) pathomechanism. Therefore, the neurotoxicity of ultrafine particulate matter (PM0.1) (PM < 0.1 μm size) and its sub-20 nm nanoparticle fraction (NP20) has been investigated in motor neuronal-like cells and primary cortical neurons, mainly affected in ALS. The present data showed that PM0.1 and NP20 exposure induced endoplasmic reticulum (ER) stress, as occurred in cortex and spinal cord of ALS mice carrying G93A mutation in SOD1 gene. Furthermore, NSC-34 motor neuronal-like cells exposed to PM0.1 and NP20 shared the same proteomic profile on some apoptotic factors with motor neurons treated with the L-BMAA, a neurotoxin inducing Amyotrophic Lateral Sclerosis/Parkinson-Dementia Complex (ALS/PDC). Of note ER stress induced by PM0.1 and NP20 in motor neurons was associated to pathological changes in ER morphology and dramatic reduction of organellar Ca2+ level through the dysregulation of the Ca2+-pumps SERCA2 and SERCA3, the Ca2+-sensor STIM1, and the Ca2+-release channels RyR3 and IP3R3. Furthermore, the mechanism deputed to ER Ca2+ refilling (e.g. the so called store operated calcium entry-SOCE) and the relative currents ICRAC were also altered by PM0.1 and NP20 exposure. Additionally, these carbonaceous particles caused the exacerbation of L-BMAA-induced ER stress and Caspase-9 activation. In conclusion, this study shows that PM0.1 and NP20 induced the aberrant expression of ER proteins leading to dysmorphic ER, organellar Ca2+ dysfunction, ER stress and neurotoxicity, providing putative correlations with the neurodegenerative process occurring in ALS.
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Affiliation(s)
- Silvia Sapienza
- Department of Neuroscience, Reproductive and Odontostomatological Sciences, University of Naples Federico II, Naples 80131, Italy
| | - Valentina Tedeschi
- Department of Neuroscience, Reproductive and Odontostomatological Sciences, University of Naples Federico II, Naples 80131, Italy
| | - Barbara Apicella
- Istituto di Scienze e Tecnologie per l'Energia e la Mobilità Sostenibili (STEMS)-CNR, Naples 80125, Italy
| | - Anna Pannaccione
- Department of Neuroscience, Reproductive and Odontostomatological Sciences, University of Naples Federico II, Naples 80131, Italy
| | - Carmela Russo
- Istituto di Scienze e Tecnologie per l'Energia e la Mobilità Sostenibili (STEMS)-CNR, Naples 80125, Italy
| | - Maria Josè Sisalli
- Department of Translational Medical Sciences, University of Naples Federico II, Naples 80131, Italy
| | - Giorgia Magliocca
- Department of Neuroscience, Reproductive and Odontostomatological Sciences, University of Naples Federico II, Naples 80131, Italy
| | - Stefania Loffredo
- Department of Translational Medical Sciences, University of Naples Federico II, Naples 80131, Italy; Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, WAO Center of Excellence, Naples 80131, Italy
| | - Agnese Secondo
- Department of Neuroscience, Reproductive and Odontostomatological Sciences, University of Naples Federico II, Naples 80131, Italy.
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8
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Qu S, Lin H, Pfeiffer N, Grus FH. Age-Related Macular Degeneration and Mitochondria-Associated Autoantibodies: A Review of the Specific Pathogenesis and Therapeutic Strategies. Int J Mol Sci 2024; 25:1624. [PMID: 38338904 PMCID: PMC10855900 DOI: 10.3390/ijms25031624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 01/22/2024] [Accepted: 01/25/2024] [Indexed: 02/12/2024] Open
Abstract
Age-related macular degeneration (AMD) is a severe retinal disease that causes irreversible visual loss and blindness in elderly populations worldwide. The pathological mechanism of AMD is complex, involving the interactions of multiple environmental and genetic factors. A poor understanding of the disease leads to limited treatment options and few effective prevention methods. The discovery of autoantibodies in AMD patients provides an opportunity to explore the pathogenesis and treatment direction of the disease. This review focuses on the mitochondria-associated autoantibodies and summarizes the functional roles of mitochondria under physiological conditions and their alterations during the pathological states. Additionally, it discusses the crosstalk between mitochondria and other organelles, as well as the mitochondria-related therapeutic strategies in AMD.
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Affiliation(s)
| | | | | | - Franz H. Grus
- Department of Experimental and Translational Ophthalmology, University Medical Center, Johannes Gutenberg University, 55131 Mainz, Germany; (S.Q.); (H.L.)
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9
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Jeong J, Lee J, Talaia G, Kim W, Song J, Hong J, Yoo K, Gonzalez DG, Athonvarangkul D, Shin J, Dann P, Haberman AM, Kim LK, Ferguson SM, Choi J, Wysolmerski J. Intracellular calcium links milk stasis to lysosome-dependent cell death during early mammary gland involution. Cell Mol Life Sci 2024; 81:29. [PMID: 38212474 PMCID: PMC10784359 DOI: 10.1007/s00018-023-05044-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 10/17/2023] [Accepted: 11/07/2023] [Indexed: 01/13/2024]
Abstract
Involution of the mammary gland after lactation is a dramatic example of coordinated cell death. Weaning causes distension of the alveolar structures due to the accumulation of milk, which, in turn, activates STAT3 and initiates a caspase-independent but lysosome-dependent cell death (LDCD) pathway. Although the importance of STAT3 and LDCD in early mammary involution is well established, it has not been entirely clear how milk stasis activates STAT3. In this report, we demonstrate that protein levels of the PMCA2 calcium pump are significantly downregulated within 2-4 h of experimental milk stasis. Reductions in PMCA2 expression correlate with an increase in cytoplasmic calcium in vivo as measured by multiphoton intravital imaging of GCaMP6f fluorescence. These events occur concomitant with the appearance of nuclear pSTAT3 expression but prior to significant activation of LDCD or its previously implicated mediators such as LIF, IL6, and TGFβ3, all of which appear to be upregulated by increased intracellular calcium. We further demonstrate that increased intracellular calcium activates STAT3 by inducing degradation of its negative regulator, SOCS3. We also observed that milk stasis, loss of PMCA2 expression and increased intracellular calcium levels activate TFEB, an important regulator of lysosome biogenesis through a process involving inhibition of CDK4/6 and cell cycle progression. In summary, these data suggest that intracellular calcium serves as an important proximal biochemical signal linking milk stasis to STAT3 activation, increased lysosomal biogenesis, and lysosome-mediated cell death.
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Affiliation(s)
- Jaekwang Jeong
- Section of Endocrinology and Metabolism, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT, USA.
| | - Jongwon Lee
- Department of Biomedical Sciences, Korea University College of Medicine, Seoul, Republic of Korea
| | - Gabriel Talaia
- Departments of Cell Biology and of Neuroscience, Wu Tsai Institute, Yale University School of Medicine, New Haven, CT, 06510, USA
| | - Wonnam Kim
- Division of Phamacology, School of Korean Medicine, Pusan National University, Yangsan, Gyeongnam, 50612, Republic of Korea
| | - Junho Song
- Department of Biomedical Sciences, Korea University College of Medicine, Seoul, Republic of Korea
| | - Juhyeon Hong
- Department of Biomedical Sciences, Korea University College of Medicine, Seoul, Republic of Korea
| | - Kwangmin Yoo
- Department of Biomedical Sciences, Korea University College of Medicine, Seoul, Republic of Korea
| | - David G Gonzalez
- Department of Genetics, Yale School of Medicine, New Haven, CT, 06510, USA
| | - Diana Athonvarangkul
- Section of Endocrinology and Metabolism, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT, USA
| | - Jaehun Shin
- Integrated Science Engineering Division, Underwood International College, Yonsei University, Seoul, Republic of Korea
| | - Pamela Dann
- Section of Endocrinology and Metabolism, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT, USA
| | - Ann M Haberman
- Departments of Immunobiology and Laboratory Medicine, Yale School of Medicine, New Haven, CT, 06510, USA
| | - Lark Kyun Kim
- Department of Biomedical Sciences, Graduate School of Medical Science, Brain Korea 21 Project, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, 06230, Republic of Korea
| | - Shawn M Ferguson
- Departments of Cell Biology and of Neuroscience, Wu Tsai Institute, Yale University School of Medicine, New Haven, CT, 06510, USA
| | - Jungmin Choi
- Department of Biomedical Sciences, Korea University College of Medicine, Seoul, Republic of Korea
| | - John Wysolmerski
- Section of Endocrinology and Metabolism, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT, USA.
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10
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Monesterolo NE, Santander VS, Campetelli AN, Rivelli Antonelli JF, Nigra AD, Balach MM, Muhlberger T, Previtali G, Casale CH. Tubulin Regulates Plasma Membrane Ca 2+-ATPase Activity in a Lipid Environment-dependent Manner. Cell Biochem Biophys 2023:10.1007/s12013-023-01206-4. [PMID: 38133791 DOI: 10.1007/s12013-023-01206-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 11/30/2023] [Indexed: 12/23/2023]
Abstract
Ca2+ plays a crucial role in cell signaling, cytosolic Ca2+ can change up to 10,000-fold in concentration due to the action of Ca2+-ATPases, including PMCA, SERCA and SCR. The regulation and balance of these enzymes are essential to maintain cytosolic Ca2+ homeostasis. Our laboratory has discovered a novel PMCA regulatory system, involving acetylated tubulin alone or in combination with membrane lipids. This regulation controls cytosolic Ca2+ levels and influences cellular properties such as erythrocyte rheology. This review summarizes the findings on the regulatory mechanism of PMCA activity by acetylated tubulin in combination with lipids. The combination of tubulin cytoskeleton and membrane lipids suggests a novel regulatory system for PMCA, which consequently affects cytosolic Ca2+ content, depending on cytoskeletal and plasma membrane dynamics. Understanding the interaction between acetylated tubulin, lipids and PMCA activity provides new insights into Ca2+ signaling and cell function. Further research may shed light on potential therapeutic targets for diseases related to Ca2+ dysregulation. This discovery contributes to a broader understanding of cellular processes and offers opportunities to develop innovative approaches to treat Ca2+-related disorders. By elucidating the complex regulatory mechanisms of Ca2+ homeostasis, we advance our understanding of cell biology and its implications for human health.
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Affiliation(s)
- Noelia E Monesterolo
- Departamento de Biología Molecular, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Río Cuarto, 5800, Córdoba, Argentina
- Instituto de Biotecnología Ambiental y Salud (INBIAS), (CONICET - UNRC), Río Cuarto, 5800, Córdoba, Argentina
| | - Verónica S Santander
- Departamento de Biología Molecular, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Río Cuarto, 5800, Córdoba, Argentina
- Instituto de Biotecnología Ambiental y Salud (INBIAS), (CONICET - UNRC), Río Cuarto, 5800, Córdoba, Argentina
| | - Alexis N Campetelli
- Departamento de Biología Molecular, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Río Cuarto, 5800, Córdoba, Argentina
- Instituto de Biotecnología Ambiental y Salud (INBIAS), (CONICET - UNRC), Río Cuarto, 5800, Córdoba, Argentina
| | - Juan F Rivelli Antonelli
- Departamento de Biología Molecular, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Río Cuarto, 5800, Córdoba, Argentina
- Instituto de Biotecnología Ambiental y Salud (INBIAS), (CONICET - UNRC), Río Cuarto, 5800, Córdoba, Argentina
| | - Ayelén D Nigra
- Departamento de Biología Molecular, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Río Cuarto, 5800, Córdoba, Argentina
- Instituto de Biotecnología Ambiental y Salud (INBIAS), (CONICET - UNRC), Río Cuarto, 5800, Córdoba, Argentina
| | - Melisa M Balach
- Departamento de Biología Molecular, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Río Cuarto, 5800, Córdoba, Argentina
- Instituto de Biotecnología Ambiental y Salud (INBIAS), (CONICET - UNRC), Río Cuarto, 5800, Córdoba, Argentina
| | - Tamara Muhlberger
- Departamento de Biología Molecular, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Río Cuarto, 5800, Córdoba, Argentina
- Instituto de Biotecnología Ambiental y Salud (INBIAS), (CONICET - UNRC), Río Cuarto, 5800, Córdoba, Argentina
| | - Gabriela Previtali
- Departamento de Biología Molecular, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Río Cuarto, 5800, Córdoba, Argentina
- Instituto de Biotecnología Ambiental y Salud (INBIAS), (CONICET - UNRC), Río Cuarto, 5800, Córdoba, Argentina
| | - César H Casale
- Departamento de Biología Molecular, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Río Cuarto, 5800, Córdoba, Argentina.
- Instituto de Biotecnología Ambiental y Salud (INBIAS), (CONICET - UNRC), Río Cuarto, 5800, Córdoba, Argentina.
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11
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Poggio E, Barazzuol L, Salmaso A, Milani C, Deligiannopoulou A, Cazorla ÁG, Jang SS, Juliá-Palacios N, Keren B, Kopajtich R, Lynch SA, Mignot C, Moorwood C, Neuhofer C, Nigro V, Oostra A, Prokisch H, Saillour V, Schuermans N, Torella A, Verloo P, Yazbeck E, Zollino M, Jech R, Winkelmann J, Necpal J, Calì T, Brini M, Zech M. ATP2B2 de novo variants as a cause of variable neurodevelopmental disorders that feature dystonia, ataxia, intellectual disability, behavioral symptoms, and seizures. Genet Med 2023; 25:100971. [PMID: 37675773 DOI: 10.1016/j.gim.2023.100971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 08/28/2023] [Accepted: 08/29/2023] [Indexed: 09/08/2023] Open
Abstract
PURPOSE ATP2B2 encodes the variant-constrained plasma-membrane calcium-transporting ATPase-2, expressed in sensory ear cells and specialized neurons. ATP2B2/Atp2b2 variants were previously linked to isolated hearing loss in patients and neurodevelopmental deficits with ataxia in mice. We aimed to establish the association between ATP2B2 and human neurological disorders. METHODS Multinational case recruitment, scrutiny of trio-based genomics data, in silico analyses, and functional variant characterization were performed. RESULTS We assembled 7 individuals harboring rare, predicted deleterious heterozygous ATP2B2 variants. The alleles comprised 5 missense substitutions that affected evolutionarily conserved sites and 2 frameshift variants in the penultimate exon. For 6 variants, a de novo status was confirmed. Unlike described patients with hearing loss, the individuals displayed a spectrum of neurological abnormalities, ranging from ataxia with dystonic features to complex neurodevelopmental manifestations with intellectual disability, autism, and seizures. Two cases with recurrent amino-acid variation showed distinctive overlap with cerebellar atrophy-associated ataxia and epilepsy. In cell-based studies, all variants caused significant alterations in cytosolic calcium handling with both loss- and gain-of-function effects. CONCLUSION Presentations in our series recapitulate key phenotypic aspects of Atp2b2-mouse models and underline the importance of precise calcium regulation for neurodevelopment and cerebellar function. Our study documents a role for ATP2B2 variants in causing heterogeneous neurodevelopmental and movement-disorder syndromes.
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Affiliation(s)
- Elena Poggio
- Department of Biology, University of Padua, Padua, Italy
| | - Lucia Barazzuol
- Department of Biomedical Sciences, University of Padua, Padua, Italy
| | - Andrea Salmaso
- Department of Biology, University of Padua, Padua, Italy
| | - Celeste Milani
- Department of Biology, University of Padua, Padua, Italy
| | | | - Ángeles García Cazorla
- European Reference Network for Hereditary Metabolic Diseases (MetabERN), Madrid, Spain; Neurometabolic Unit and Synaptic Metabolism Laboratory, Neurology Department Sant Joan de Déu Hospital, IPR, Barcelona, Spain; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III, Madrid, Spain
| | - Se Song Jang
- Seoul National University (SNU) College of Medicine, Seoul, South Korea
| | - Natalia Juliá-Palacios
- Neurology Department, Neurometabolic Unit, Institut de Recerca, CIBERER and MetabERN, Hospital Sant Joan de Déu, Barcelona, Spain
| | - Boris Keren
- APHP.Sorbonne Université, Department of Medical Genetics, Pitié-Salpêtrière University Hospital, and Centre de Référence Maladies Rares Déficiences Intellectuelles de Causes Rares, Paris, France
| | - Robert Kopajtich
- Institute of Neurogenomics, Helmholtz Zentrum München, Munich, Germany; Institute of Human Genetics, School of Medicine, Technical University of Munich, Munich, Germany
| | - Sally Ann Lynch
- Department of Clinical Genetics, Temple Street Children's University Hospital, Dublin, Ireland
| | - Cyril Mignot
- APHP.Sorbonne Université, Department of Medical Genetics, Pitié-Salpêtrière University Hospital, and Centre de Référence Maladies Rares Déficiences Intellectuelles de Causes Rares, Paris, France
| | - Catherine Moorwood
- Exeter Genomics Laboratory, Royal Devon University Healthcare NHS Foundation Trust, Exeter, United Kingdom
| | - Christiane Neuhofer
- Institute of Neurogenomics, Helmholtz Zentrum München, Munich, Germany; Institute of Human Genetics, School of Medicine, Technical University of Munich, Munich, Germany
| | - Vincenzo Nigro
- Department of Precision Medicine, University of Campania, Luigi Vanvitelli, Napoli, Italy
| | - Anna Oostra
- Department of Pediatrics, Division of Pediatric Neurology and Metabolism, Ghent University Hospital, Ghent, Belgium
| | - Holger Prokisch
- Institute of Neurogenomics, Helmholtz Zentrum München, Munich, Germany; Institute of Human Genetics, School of Medicine, Technical University of Munich, Munich, Germany
| | - Virginie Saillour
- Laboratoire de biologie médicale multisites Seqoia - FMG2025, Paris, France
| | - Nika Schuermans
- Center for Medical Genetics Ghent, Ghent University Hospital, Ghent, Belgium; Department of Biomolecular Medicine, Ghent University Hospital, Ghent, Belgium
| | - Annalaura Torella
- Department of Precision Medicine, University of Campania, Luigi Vanvitelli, Napoli, Italy
| | - Patrick Verloo
- Department of Pediatric Neurology, Center for Inherited Metabolic Disorders and metabERN, University Hospital Ghent, Ghent, Belgium
| | - Elise Yazbeck
- Pediatric Neurology Department, Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Saclay, Bicêtre Hospital, Le Kremlin Bicêtre, France
| | - Marcella Zollino
- Unit of Medical Genetics, Section of Genomic Medicine, Department of Life Sciences and Public Health, Università Cattolica del Sacro Cuore, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Robert Jech
- Department of Neurology, Charles University in Prague, 1st Faculty of Medicine and General University Hospital in Prague, Prague, Czech Republic
| | - Juliane Winkelmann
- Institute of Neurogenomics, Helmholtz Zentrum München, Munich, Germany; Institute of Human Genetics, School of Medicine, Technical University of Munich, Munich, Germany; Munich Cluster for Systems Neurology, SyNergy, Munich, Germany
| | - Jan Necpal
- 2nd Department of Neurology, Faculty of Medicine, Comenius University, Bratislava, Slovakia; Department of Neurology, Zvolen Hospital, Zvolen, Slovakia
| | - Tito Calì
- Department of Biomedical Sciences, University of Padua, Padua, Italy; Centro Studi per la Neurodegenerazione (CESNE), University of Padua, Padua, Italy; Neuroscience Center (PNC), University of Padua, Padua, Italy
| | - Marisa Brini
- Department of Biology, University of Padua, Padua, Italy; Centro Studi per la Neurodegenerazione (CESNE), University of Padua, Padua, Italy
| | - Michael Zech
- Institute of Neurogenomics, Helmholtz Zentrum München, Munich, Germany; Institute of Human Genetics, School of Medicine, Technical University of Munich, Munich, Germany; Institute for Advanced Study, Technical University of Munich, Garching, Germany.
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12
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Rivera-Morán MA, Sampedro JG. Isolation of the Sarcoplasmic Reticulum Ca 2+-ATPase from Rabbit Fast-Twitch Muscle. Methods Protoc 2023; 6:102. [PMID: 37888034 PMCID: PMC10608927 DOI: 10.3390/mps6050102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 10/13/2023] [Accepted: 10/17/2023] [Indexed: 10/28/2023] Open
Abstract
The sarcoendoplasmic reticulum Ca2+-ATPase (SERCA) is a membrane protein that is destabilized during purification in the absence of calcium ions. The disaccharide trehalose is a protein stabilizer that accumulates in the yeast cytoplasm when under stress. In the present work, SERCA was purified by including trehalose in the purification protocol. The purified SERCA showed high protein purity (~95%) and ATPase activity. ATP hydrolysis was dependent on the presence of Ca2+ and the enzyme kinetics showed a hyperbolic dependence on ATP (Km = 12.16 ± 2.25 μM ATP). FITC labeling showed the integrity of the ATP-binding site and the identity of the isolated enzyme as a P-type ATPase. Circular dichroism (CD) spectral changes at a wavelength of 225 nm were observed upon titration with ATP, indicating α-helical rearrangements in the nucleotide-binding domain (N-domain), which correlated with ATP affinity (Km). The presence of Ca2+ did not affect FITC labeling or the ATP-mediated structural changes at the N-domain. The use of trehalose in the SERCA purification protocol stabilized the enzyme. The isolated SERCA appears to be suitable for structural and ligand binding studies, e.g., for testing newly designed or natural inhibitors. The use of trehalose is recommended for the isolation of unstable enzymes.
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Affiliation(s)
| | - José G. Sampedro
- Instituto de Física, Universidad Autónoma de San Luis Potosí, Avenida Chapultepec 1570, Privadas del Pedregal, San Luis Potosí 78295, Mexico
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13
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Arya JK, Kumar R, Singh A, Srivastava P, Yadawa AK, Rizvi SI. Acarbose Mitigates Age-Dependent Alterations in Erythrocyte Membrane Transporters During Aging in Rats. Rejuvenation Res 2023; 26:139-146. [PMID: 37166369 DOI: 10.1089/rej.2023.0010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2023] Open
Abstract
Acarbose (ACA), a well-studied and effective inhibitor of α-amylase and α-glucosidase, is a postprandial-acting antidiabetic medicine. The membrane of the erythrocyte is an excellent tool for analyzing different physiological and biochemical activities since it experiences a range of metabolic alterations throughout aging. It is uncertain if ACA modulates erythrocyte membrane activities in an age-dependent manner. As a result, the current study was conducted to explore the influence of ACA on age-dependent deteriorated functions of transporters/exchangers, disrupted levels of various biomarkers such as lipid hydroperoxides (LHs), protein carbonyl (PCO), sialic acid (SA), total thiol (-SH), and erythrocyte membrane osmotic fragility. In addition to a concurrent increase in Na+/H+ exchanger activity and concentration of LH, PCO, and osmotic fragility, we also detected a considerable decrease in membrane-linked activities of Ca2+-ATPase (PMCA) and Na+/K+-ATPase (NKA), as well as concentrations of SA and -SH in old-aged rats. The aging-induced impairment of the activities of membrane-bound ATPases and the changed levels of redox biomarkers were shown to be effectively restored by ACA treatment.
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Affiliation(s)
| | - Raushan Kumar
- Department of Biochemistry, University of Allahabad, Allahabad, India
| | - Akanksha Singh
- Department of Biochemistry, University of Allahabad, Allahabad, India
| | | | - Arun Kumar Yadawa
- Department of Biochemistry, University of Allahabad, Allahabad, India
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14
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Jeong J, Lee J, Talaia G, Kim W, Song J, Hong J, Yoo K, Gonzalez D, Athonvarangkul D, Shin J, Dann P, Haberman A, Kim LK, Ferguson S, Choi J, Wysolmerski J. Intracellular Calcium links Milk Stasis to Lysosome Dependent Cell Death by Activating a TGFβ3/TFEB/STAT3 Pathway Early during Mammary Gland Involution. RESEARCH SQUARE 2023:rs.3.rs-3030763. [PMID: 37398309 PMCID: PMC10312953 DOI: 10.21203/rs.3.rs-3030763/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/04/2023]
Abstract
Involution of the mammary gland after lactation is a dramatic example of coordinated cell death. Weaning causes distension of the alveolar structures due to the accumulation of milk, which, in turn, activates STAT3 and initiates a caspase-independent but lysosome-dependent cell death (LDCD) pathway. Although the importance of STAT3 and LDCD in early mammary involution is well established, it has not been entirely clear how milk stasis activates STAT3. In this report, we demonstrate that protein levels of the PMCA2 calcium pump are significantly downregulated within 2-4 hours of experimental milk stasis. Reductions in PMCA2 expression correlate with an increase in cytoplasmic calcium in vivo as measured by multiphoton intravital imaging of GCaMP6f fluorescence. These events occur concomitant with the appearance of nuclear pSTAT3 expression but prior to significant activation of LDCD or its previously implicated mediators such as LIF, IL6 and TGFβ3, all of which appear to be upregulated by increased intracellular calcium. We also observed that milk stasis, loss of PMCA2 expression and increased intracellular calcium levels activate TFEB, an important regulator of lysosome biogenesis. This is the result of increased TGFβ signaling and inhibition of cell cycle progression. Finally, we demonstrate that increased intracellular calcium activates STAT3 by inducing degradation of its negative regulator, SOCS3, a process which also appears to be mediated by TGFβ signaling. In summary, these data suggest that intracellular calcium serves as an important proximal biochemical signal linking milk stasis to STAT3 activation, increased lysosomal biogenesis, and lysosome-mediated cell death.
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Affiliation(s)
- Jaekwang Jeong
- Yale School of Medicine: Yale University School of Medicine
| | | | - Gabriel Talaia
- Yale School of Medicine: Yale University School of Medicine
| | | | | | | | | | - David Gonzalez
- Yale School of Medicine: Yale University School of Medicine
| | | | | | - Pamela Dann
- Yale School of Medicine: Yale University School of Medicine
| | - Ann Haberman
- Yale School of Medicine: Yale University School of Medicine
| | | | - Shawn Ferguson
- Yale School of Medicine: Yale University School of Medicine
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15
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Di Fonzo A, Jinnah HA, Zech M. Dystonia genes and their biological pathways. INTERNATIONAL REVIEW OF NEUROBIOLOGY 2023; 169:61-103. [PMID: 37482402 DOI: 10.1016/bs.irn.2023.04.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/25/2023]
Abstract
High-throughput sequencing has been instrumental in uncovering the spectrum of pathogenic genetic alterations that contribute to the etiology of dystonia. Despite the immense heterogeneity in monogenic causes, studies performed during the past few years have highlighted that many rare deleterious variants associated with dystonic presentations affect genes that have roles in certain conserved pathways in neural physiology. These various gene mutations that appear to converge towards the disruption of interconnected cellular networks were shown to produce a wide range of different dystonic disease phenotypes, including isolated and combined dystonias as well as numerous clinically complex, often neurodevelopmental disorder-related conditions that can manifest with dystonic features in the context of multisystem disturbances. In this chapter, we summarize the manifold dystonia-gene relationships based on their association with a discrete number of unifying pathophysiological mechanisms and molecular cascade abnormalities. The themes on which we focus comprise dopamine signaling, heavy metal accumulation and calcifications in the brain, nuclear envelope function and stress response, gene transcription control, energy homeostasis, lysosomal trafficking, calcium and ion channel-mediated signaling, synaptic transmission beyond dopamine pathways, extra- and intracellular structural organization, and protein synthesis and degradation. Enhancing knowledge about the concept of shared etiological pathways in the pathogenesis of dystonia will motivate clinicians and researchers to find more efficacious treatments that allow to reverse pathologies in patient-specific core molecular networks and connected multipathway loops.
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Affiliation(s)
- Alessio Di Fonzo
- Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Neurology Unit, Milan, Italy
| | - H A Jinnah
- Departments of Neurology, Human Genetics, and Pediatrics, Atlanta, GA, United States
| | - Michael Zech
- Institute of Neurogenomics, Helmholtz Zentrum München, Munich, Germany; Institute of Human Genetics, School of Medicine, Technical University of Munich, Munich, Germany.
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16
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La Manna S, Florio D, Di Natale C, Marasco D. Modulation of hydrogel networks by metal ions. J Pept Sci 2022:e3474. [PMID: 36579727 DOI: 10.1002/psc.3474] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 12/19/2022] [Accepted: 12/21/2022] [Indexed: 12/30/2022]
Abstract
Self-assembling hydrogels are receiving great attention for both biomedical and technological applications. Self-assembly of protein/peptides as well as organic molecules is commonly induced in response to external triggers such as changes of temperature, concentration, or pH. An interesting strategy to modulate the morphology and mechanical properties of the gels implies the use of metal ions, where coordination bonds regulate the dynamic cross-linking in the construction of hydrogels, and coordination geometries, catalytic, and redox properties of metal ions play crucial roles. This review aims to discuss recent insights into the supramolecular assembly of hydrogels involving metal ions, with a focus on self-assembling peptides, as well as applications of metallogels in biomedical fields including tissue engineering, sensing, wound healing, and drug delivery.
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Affiliation(s)
- Sara La Manna
- Department of Pharmacy, University of Naples "Federico II", Naples, Italy
| | - Daniele Florio
- Department of Pharmacy, University of Naples "Federico II", Naples, Italy
| | - Concetta Di Natale
- Department of Chemical, Materials and Production Engineering, University of Naples "Federico II", Naples, Italy.,Center for Advanced Biomaterials for Healthcare@CRIB, Istituto Italiano di Tecnologia (IIT), Naples, Italy
| | - Daniela Marasco
- Department of Pharmacy, University of Naples "Federico II", Naples, Italy
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17
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Oprea L, Desjardins N, Jiang X, Sareen K, Zheng JQ, Khadra A. Characterizing spontaneous Ca 2+ local transients in OPCs using computational modeling. Biophys J 2022; 121:4419-4432. [PMID: 36352783 PMCID: PMC9748374 DOI: 10.1016/j.bpj.2022.11.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Revised: 10/03/2022] [Accepted: 11/03/2022] [Indexed: 11/09/2022] Open
Abstract
Spontaneous Ca2+ local transients (SCaLTs) in isolated oligodendrocyte precursor cells are largely regulated by the following fluxes: store-operated Ca2+ entry (SOCE), Na+/Ca2+ exchange, Ca2+ pumping through Ca2+-ATPases, and Ca2+-induced Ca2+-release through ryanodine receptors and inositol-trisphosphate receptors. However, the relative contributions of these fluxes in mediating fast spiking and the slow baseline oscillations seen in SCaLTs remain incompletely understood. Here, we developed a stochastic spatiotemporal computational model to simulate SCaLTs in a homogeneous medium with ionic flow between the extracellular, cytoplasmic, and endoplasmic-reticulum compartments. By simulating the model and plotting both the histograms of SCaLTs obtained experimentally and from the model as well as the standard deviation of inter-SCaLT intervals against inter-SCaLT interval averages of multiple model and experimental realizations, we revealed the following: (1) SCaLTs exhibit very similar characteristics between the two data sets, (2) they are mostly random, (3) they encode information in their frequency, and (4) their slow baseline oscillations could be due to the stochastic slow clustering of inositol-trisphosphate receptors (modeled as an Ornstein-Uhlenbeck noise process). Bifurcation analysis of a deterministic temporal version of the model showed that the contribution of fluxes to SCaLTs depends on the parameter regime and that the combination of excitability, stochasticity, and mixed-mode oscillations are responsible for irregular spiking and doublets in SCaLTs. Additionally, our results demonstrated that blocking each flux reduces SCaLTs' frequency and that the reverse (forward) mode of Na+/Ca2+ exchange decreases (increases) SCaLTs. Taken together, these results provide a quantitative framework for SCaLT formation in oligodendrocyte precursor cells.
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Affiliation(s)
- Lawrence Oprea
- Department of Physiology, McGill University, Montréal, Quebec, Canada
| | | | - Xiaoyu Jiang
- Department of Physiology, McGill University, Montréal, Quebec, Canada
| | - Kushagra Sareen
- Department of Physiology, McGill University, Montréal, Quebec, Canada
| | - James Q Zheng
- Department of Cell Biology, School of Medicine, Emory University, Atlanta, Georgia
| | - Anmar Khadra
- Department of Physiology, McGill University, Montréal, Quebec, Canada.
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18
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Hricovíni M, Owens RJ, Bak A, Kozik V, Musiał W, Pierattelli R, Májeková M, Rodríguez Y, Musioł R, Slodek A, Štarha P, Piętak K, Słota D, Florkiewicz W, Sobczak-Kupiec A, Jampílek J. Chemistry towards Biology-Instruct: Snapshot. Int J Mol Sci 2022; 23:14815. [PMID: 36499140 PMCID: PMC9739621 DOI: 10.3390/ijms232314815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 11/15/2022] [Accepted: 11/23/2022] [Indexed: 12/05/2022] Open
Abstract
The knowledge of interactions between different molecules is undoubtedly the driving force of all contemporary biomedical and biological sciences. Chemical biology/biological chemistry has become an important multidisciplinary bridge connecting the perspectives of chemistry and biology to the study of small molecules/peptidomimetics and their interactions in biological systems. Advances in structural biology research, in particular linking atomic structure to molecular properties and cellular context, are essential for the sophisticated design of new medicines that exhibit a high degree of druggability and very importantly, druglikeness. The authors of this contribution are outstanding scientists in the field who provided a brief overview of their work, which is arranged from in silico investigation through the characterization of interactions of compounds with biomolecules to bioactive materials.
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Affiliation(s)
- Miloš Hricovíni
- Institute of Chemistry, Slovak Academy of Sciences, Dúbravská cesta 9, 845 38 Bratislava, Slovakia
| | - Raymond J. Owens
- Structural Biology, The Rosalind Franklin Institute, Harwell Science Campus, UK, University of Oxford, Oxford OX11 0QS, UK
- Division of Structural Biology, The Wellcome Centre for Human Genetics, University of Oxford, Oxford OX3 7BN, UK
| | - Andrzej Bak
- Institute of Chemistry, University of Silesia, Szkolna 9, 40 007 Katowice, Poland
| | - Violetta Kozik
- Institute of Chemistry, University of Silesia, Szkolna 9, 40 007 Katowice, Poland
| | - Witold Musiał
- Department of Physical Chemistry and Biophysics, Pharmaceutical Faculty, Wroclaw Medical University, Borowska 211A, 50 556 Wrocław, Poland
| | - Roberta Pierattelli
- Magnetic Resonance Center and Department of Chemistry “Ugo Schiff”, University of Florence, 50019 Sesto Fiorentino, Italy
| | - Magdaléna Májeková
- Center of Experimental Medicine SAS and Department of Biochemical Pharmacology, Institute of Experimental Pharmacology and Toxicology, Slovak Academy of Sciences, Dubravska cesta 9, 841 04 Bratislava, Slovakia
| | - Yoel Rodríguez
- Department of Natural Sciences, Eugenio María de Hostos Community College, City University of New York, 500 Grand Concourse, Bronx, NY 10451, USA
- Department of Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, 1425 Madison Avenue, New York, NY 10029, USA
| | - Robert Musioł
- Institute of Chemistry, University of Silesia, Szkolna 9, 40 007 Katowice, Poland
| | - Aneta Slodek
- Institute of Chemistry, University of Silesia, Szkolna 9, 40 007 Katowice, Poland
| | - Pavel Štarha
- Department of Inorganic Chemistry, Faculty of Science, Palacký University Olomouc, 17. listopadu 1192/12, 771 46 Olomouc, Czech Republic
| | - Karina Piętak
- Department of Materials Science, Faculty of Materials Engineering and Physics, Cracow University of Technology, 37 Jana Pawła II Av., 31 864 Krakow, Poland
| | - Dagmara Słota
- Department of Materials Science, Faculty of Materials Engineering and Physics, Cracow University of Technology, 37 Jana Pawła II Av., 31 864 Krakow, Poland
| | - Wioletta Florkiewicz
- Department of Materials Science, Faculty of Materials Engineering and Physics, Cracow University of Technology, 37 Jana Pawła II Av., 31 864 Krakow, Poland
| | - Agnieszka Sobczak-Kupiec
- Department of Materials Science, Faculty of Materials Engineering and Physics, Cracow University of Technology, 37 Jana Pawła II Av., 31 864 Krakow, Poland
| | - Josef Jampílek
- Department of Analytical Chemistry, Faculty of Natural Sciences, Comenius University, Ilkovičova 6, 842 15 Bratislava, Slovakia
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19
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Meyer DJ, Díaz-García CM, Nathwani N, Rahman M, Yellen G. The Na +/K + pump dominates control of glycolysis in hippocampal dentate granule cells. eLife 2022; 11:e81645. [PMID: 36222651 PMCID: PMC9592084 DOI: 10.7554/elife.81645] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 10/11/2022] [Indexed: 11/13/2022] Open
Abstract
Cellular ATP that is consumed to perform energetically expensive tasks must be replenished by new ATP through the activation of metabolism. Neuronal stimulation, an energetically demanding process, transiently activates aerobic glycolysis, but the precise mechanism underlying this glycolysis activation has not been determined. We previously showed that neuronal glycolysis is correlated with Ca2+ influx, but is not activated by feedforward Ca2+ signaling (Díaz-García et al., 2021a). Since ATP-powered Na+ and Ca2+ pumping activities are increased following stimulation to restore ion gradients and are estimated to consume most neuronal ATP, we aimed to determine if they are coupled to neuronal glycolysis activation. By using two-photon imaging of fluorescent biosensors and dyes in dentate granule cell somas of acute mouse hippocampal slices, we observed that production of cytoplasmic NADH, a byproduct of glycolysis, is strongly coupled to changes in intracellular Na+, while intracellular Ca2+ could only increase NADH production if both forward Na+/Ca2+ exchange and Na+/K+ pump activity were intact. Additionally, antidromic stimulation-induced intracellular [Na+] increases were reduced >50% by blocking Ca2+ entry. These results indicate that neuronal glycolysis activation is predominantly a response to an increase in activity of the Na+/K+ pump, which is strongly potentiated by Na+ influx through the Na+/Ca2+ exchanger during extrusion of Ca2+ following stimulation.
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Affiliation(s)
- Dylan J Meyer
- Department of Neurobiology, Harvard Medical SchoolBostonUnited States
| | | | - Nidhi Nathwani
- Department of Neurobiology, Harvard Medical SchoolBostonUnited States
| | - Mahia Rahman
- Department of Neurobiology, Harvard Medical SchoolBostonUnited States
| | - Gary Yellen
- Department of Neurobiology, Harvard Medical SchoolBostonUnited States
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20
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The ataxia-linked E1081Q mutation affects the sub-plasma membrane Ca 2+-microdomains by tuning PMCA3 activity. Cell Death Dis 2022; 13:855. [PMID: 36207321 PMCID: PMC9546857 DOI: 10.1038/s41419-022-05300-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 09/22/2022] [Accepted: 09/26/2022] [Indexed: 01/23/2023]
Abstract
Calcium concentration must be finely tuned in all eukaryotic cells to ensure the correct performance of its signalling function. Neuronal activity is exquisitely dependent on the control of Ca2+ homeostasis: its alterations ultimately play a pivotal role in the origin and progression of many neurodegenerative processes. A complex toolkit of Ca2+ pumps and exchangers maintains the fluctuation of cytosolic Ca2+ concentration within the appropriate threshold. Two ubiquitous (isoforms 1 and 4) and two neuronally enriched (isoforms 2 and 3) of the plasma membrane Ca2+ATPase (PMCA pump) selectively regulate cytosolic Ca2+ transients by shaping the sub-plasma membrane (PM) microdomains. In humans, genetic mutations in ATP2B1, ATP2B2 and ATP2B3 gene have been linked with hearing loss, cerebellar ataxia and global neurodevelopmental delay: all of them were found to impair pump activity. Here we report three additional mutations in ATP2B3 gene corresponding to E1081Q, R1133Q and R696H amino acids substitution, respectively. Among them, the novel missense mutation (E1081Q) immediately upstream the C-terminal calmodulin-binding domain (CaM-BD) of the PMCA3 protein was present in two patients originating from two distinct families. Our biochemical and molecular studies on PMCA3 E1081Q mutant have revealed a splicing variant-dependent effect of the mutation in shaping the sub-PM [Ca2+]. The E1081Q substitution in the full-length b variant abolished the capacity of the pump to reduce [Ca2+] in the sub-PM microdomain (in line with the previously described ataxia-related PMCA mutations negatively affecting Ca2+ pumping activity), while, surprisingly, its introduction in the truncated a variant selectively increased Ca2+ extrusion activity in the sub-PM Ca2+ microdomains. These results highlight the importance to set a precise threshold of [Ca2+] by fine-tuning the sub-PM microdomains and the different contribution of the PMCA splice variants in this regulation.
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21
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Calmodulin in Paramecium: Focus on Genomic Data. Microorganisms 2022; 10:microorganisms10101915. [PMID: 36296191 PMCID: PMC9608856 DOI: 10.3390/microorganisms10101915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 09/14/2022] [Accepted: 09/22/2022] [Indexed: 11/26/2022] Open
Abstract
Calcium (Ca2+) is a universal second messenger that plays a key role in cellular signaling. However, Ca2+ signals are transduced with the help of Ca2+-binding proteins, which serve as sensors, transducers, and elicitors. Among the collection of these Ca2+-binding proteins, calmodulin (CaM) emerged as the prototypical model in eukaryotic cells. This is a small protein that binds four Ca2+ ions and whose functions are multiple, controlling many essential aspects of cell physiology. CaM is universally distributed in eukaryotes, from multicellular organisms, such as human and land plants, to unicellular microorganisms, such as yeasts and ciliates. Here, we review most of the information gathered on CaM in Paramecium, a group of ciliates. We condense the information here by mentioning that mature Paramecium CaM is a 148 amino acid-long protein codified by a single gene, as in other eukaryotic microorganisms. In these ciliates, the protein is notoriously localized and regulates cilia function and can stimulate the activity of some enzymes. When Paramecium CaM is mutated, cells show flawed locomotion and/or exocytosis. We further widen this and additional information in the text, focusing on genomic data.
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22
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Caner A, Onal MG. Inhibition of Plasma Membrane Calcium Pump Influences Intracellular Calcium Signaling Pathways in Breast Cancer. Cell Biochem Biophys 2022; 80:747-753. [PMID: 36064997 DOI: 10.1007/s12013-022-01090-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 08/09/2022] [Indexed: 11/29/2022]
Abstract
The plasma membrane calcium pump (PMCA) is an important transporter that maintains intracellular calcium concentration ([Ca2+]i). It allows the calcium (Ca2+) from inside the cell to go out of the cell through the plasma membrane. For this, it cooperates with the proteins in the cell. The aim of this study is to demonstrate the effect of PMCA on intracellular calcium signaling in breast cancer cells. In this study, PMCA was inhibited by orthovanadate (OV), and changes in Calmodulin (CaM), Calcineurin (CaN) and cMyc proteins were demonstrated. Intracellular calcium accumulation was measured when PMCA was inhibited in MDA-MB-231 cells. At the same time, it was observed that the cell movement decreased with time. Over time, CaN and CaM were slightly suppressed, and cMyc protein was not expressed. As a result, when PMCA protein is targeted correctly in breast cancer cells, it has an indirect effect on cancer-promoting proteins.
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Affiliation(s)
- Armagan Caner
- Faculty of Medicine, Department of Biophysics, Erciyes University, Kayseri, Turkey. .,Genom and Stem Cell Center, Erciyes University, Kayseri, Turkey.
| | - Muge Gulcihan Onal
- Genom and Stem Cell Center, Erciyes University, Kayseri, Turkey.,Faculty of Medicine, Department of Medical Biology, Erciyes University, Kayseri, Turkey
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23
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Bian S, Zhang X, Lin L, Sun L, Guo Z, Pan J, Cui J, Yao H, Xu J, Hao Z, Wang Y, Tong L, Bu X, Kong D, Liu N, Li Y. Exosomal MiR-4261 mediates calcium overload in RBCs by downregulating the expression of ATP2B4 in multiple myeloma. Front Oncol 2022; 12:978755. [PMID: 36091107 PMCID: PMC9458875 DOI: 10.3389/fonc.2022.978755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Accepted: 08/11/2022] [Indexed: 11/13/2022] Open
Abstract
Background Hypercalcemia induced by multiple myeloma (MM) affects the biological functions of excitable and non-excitable cells. However, red blood cells (RBCs) regulatory effect on calcium in hypercalcemia is still not fully understood. Methods A total of 113 patients with MM osteolytic lesions were studied retrospectively. Flow cytometry and atomic absorption spectroscopy were used to detect calcium content. Immunofluorescence and Western blotting were used to investigate protein expression. GEO and miRNA databases were used to screen miRNAs. Exosomal miR-4261 migration was investigated by Transwell assay. Dual-luciferase assays confirmed the targeting relationship between miR-4261 and ATP2B4. An RBC oxidative stress model was constructed, and Omega-Agatoxin IVA was used to study the role of plasma membrane Ca2+-ATPase 4 (PMCA4) in RBCs. Results The results showed that MM RBCs had calcium overload, and serum calcium levels increased as the number of RBCs decreased. The expression of PMCA4 in MM RBCs was significantly lower than in normal RBCs. The exosomal miR-4261 produced by MM cells could be transferred to RBCs to downregulate the expression of ATP2B4. Conclusions Studies have confirmed that RBCs experience calcium overload in MM with osteolytic lesions, which is related to the downregulation of ATP2B4 by MM exosomal miR-4261.
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Affiliation(s)
- Sicheng Bian
- Key Laboratory of Cell Transplantation of National Health Commission, Heilongjiang Key Laboratory of Blood and Hematopoietic System, Harbin Medical University, Harbin, China
- Department of Hematology, The First Affiliated Hospital, Harbin Medical University, Harbin, China
| | - Xialin Zhang
- Department of Hematology, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Taiyuan, China
| | - Leilei Lin
- Department of Hematology, Affiliated Yantai Yuhuangding Hospital, Qingdao University, Yantai, China
| | - Lili Sun
- Key Laboratory of Cell Transplantation of National Health Commission, Heilongjiang Key Laboratory of Blood and Hematopoietic System, Harbin Medical University, Harbin, China
- Department of Hematology, The First Affiliated Hospital, Harbin Medical University, Harbin, China
| | - Zhibo Guo
- Key Laboratory of Cell Transplantation of National Health Commission, Heilongjiang Key Laboratory of Blood and Hematopoietic System, Harbin Medical University, Harbin, China
- Department of Hematology, The First Affiliated Hospital, Harbin Medical University, Harbin, China
| | - Jie Pan
- Department of Pathology, Stanford University School of Medicine, Palo Alto, CA, United States
| | - Jiangxia Cui
- Department of Hematology, Xi’an International Medical Center Hospital, Xi’an, China
| | - Hanbing Yao
- Department of Hematology, Xi’an International Medical Center Hospital, Xi’an, China
| | - Jing Xu
- Institute of Hematology, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Zhuanghui Hao
- Institute of Hematology, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Yuzhu Wang
- Key Laboratory of Cell Transplantation of National Health Commission, Heilongjiang Key Laboratory of Blood and Hematopoietic System, Harbin Medical University, Harbin, China
- Department of Hematology, The First Affiliated Hospital, Harbin Medical University, Harbin, China
| | - Liguo Tong
- Central Laboratory, Shanxi Academy of Traditional Chinese Medicine, Taiyuan, China
| | - Xingpeng Bu
- Department of Geriatrics, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Taiyuan, China
| | - Desheng Kong
- Key Laboratory of Cell Transplantation of National Health Commission, Heilongjiang Key Laboratory of Blood and Hematopoietic System, Harbin Medical University, Harbin, China
| | - Nianjiao Liu
- Key Laboratory of Cell Transplantation of National Health Commission, Heilongjiang Key Laboratory of Blood and Hematopoietic System, Harbin Medical University, Harbin, China
| | - Yinghua Li
- Key Laboratory of Cell Transplantation of National Health Commission, Heilongjiang Key Laboratory of Blood and Hematopoietic System, Harbin Medical University, Harbin, China
- Department of Hematology, The First Affiliated Hospital, Harbin Medical University, Harbin, China
- *Correspondence: Yinghua Li,
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Boutin JA, Bedut S, Jullian M, Galibert M, Frankiewicz L, Gloanec P, Ferry G, Puget K, Leprince J. Caloxin-derived peptides for the inhibition of plasma membrane calcium ATPases. Peptides 2022; 154:170813. [PMID: 35605801 DOI: 10.1016/j.peptides.2022.170813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 05/16/2022] [Accepted: 05/16/2022] [Indexed: 11/20/2022]
Abstract
Plasma membrane calcium ATPases (PMCAs) are a family of transmembrane proteins responsible for the extrusion of cytosolic Ca2+ to the extracellular milieu. They are important players of the calcium homeostasis possibly implicated in some important diseases. The reference inhibitors of PMCA extruding activity are on one hand ortho-vanadate (IC50 in the 30 mM range), and on the other a series of 12- to 20-mer peptides named caloxins (IC50 in the 100 µM scale). As for all integral membrane proteins, biochemistry and pharmacology are difficult to study on isolated and/or purified proteins. Using a series of reference blockers, we assessed a pharmacological window with which we could study the functionality of PMCAs in living cells. Using this system, we screened for alternative versions of caloxins, aiming at shortening the peptide backbone, introducing non-natural amino acids, and overall trying to get a glimpse at the structure-activity relationship between those new peptides and the protein in a cellular context. We describe a short series of equipotent 5-residue long analogues with IC50 in the low µM range.
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Affiliation(s)
- Jean A Boutin
- Institut de Recherches Servier, Croissy-sur-Seine, France; INSERM U1239, University of Rouen Normandy, Laboratory of Neuroendocrine Endocrine and Germinal Differentiation and Communication (NorDiC), Rouen, France.
| | | | | | | | | | | | - Gilles Ferry
- Institut de Recherches Servier, Croissy-sur-Seine, France
| | | | - Jérôme Leprince
- INSERM U1239, University of Rouen Normandy, Laboratory of Neuroendocrine Endocrine and Germinal Differentiation and Communication (NorDiC), Rouen, France; INSERM US51, University of Rouen Normandy, Cell Imaging Platform of Normandy (PRIMACEN), Rouen, France
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25
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Sluysmans S, Salmaso A, Rouaud F, Méan I, Brini M, Citi S. The PLEKHA7-PDZD11 complex regulates the localization of the calcium pump PMCA and calcium handling in cultured cells. J Biol Chem 2022; 298:102138. [PMID: 35714771 PMCID: PMC9307954 DOI: 10.1016/j.jbc.2022.102138] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 06/05/2022] [Accepted: 06/06/2022] [Indexed: 01/11/2023] Open
Abstract
The plasma membrane calcium ATPase (PMCA) extrudes calcium from the cytosol to the extracellular space to terminate calcium-dependent signaling. Although the distribution of PMCA is crucial for its function, the molecular mechanisms that regulate the localization of PMCA isoforms are not well understood. PLEKHA7 is implicated by genetic studies in hypertension and the regulation of calcium handling. PLEKHA7 recruits the small adapter protein PDZD11 to adherens junctions, and together they control the trafficking and localization of plasma membrane associated proteins, including the Menkes copper ATPase. Since PDZD11 binds to the C-terminal domain of b-isoforms of PMCA, PDZD11 and its interactor PLEKHA7 could control the localization and activity of PMCA. Here, we test this hypothesis using cultured cell model systems. We show using immunofluorescence microscopy and a surface biotinylation assay that KO of either PLEKHA7 or PDZD11 in mouse kidney collecting duct epithelial cells results in increased accumulation of endogenous PMCA at lateral cell–cell contacts and PDZ-dependent ectopic apical localization of exogenous PMCA4x/b isoform. In HeLa cells, coexpression of PDZD11 reduces membrane accumulation of overexpressed PMCA4x/b, and analysis of cytosolic calcium transients shows that PDZD11 counteracts calcium extrusion activity of overexpressed PMCA4x/b, but not PMCA4x/a, which lacks the PDZ-binding motif. Moreover, KO of PDZD11 in either endothelial (bEnd.3) or epithelial (mouse kidney collecting duct) cells increases the rate of calcium extrusion. Collectively, these results suggest that the PLEKHA7–PDZD11 complex modulates calcium homeostasis by regulating the localization of PMCA.
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Affiliation(s)
- Sophie Sluysmans
- Department of Molecular and Cellular Biology, University of Geneva, Geneva, Switzerland
| | - Andrea Salmaso
- Department of Biology, University of Padua, Padua, Italy
| | - Florian Rouaud
- Department of Molecular and Cellular Biology, University of Geneva, Geneva, Switzerland
| | - Isabelle Méan
- Department of Molecular and Cellular Biology, University of Geneva, Geneva, Switzerland
| | - Marisa Brini
- Department of Biology, University of Padua, Padua, Italy.
| | - Sandra Citi
- Department of Molecular and Cellular Biology, University of Geneva, Geneva, Switzerland.
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26
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Arya JK, Kumar R, Tripathi SS, Rizvi SI. Hormetic effect of 3-Bromopyruvate on age-induced alterations in erythrocyte membrane transporters and oxidative biomarkers in rats. Rejuvenation Res 2022; 25:122-128. [DOI: 10.1089/rej.2021.0060] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Affiliation(s)
- Jitendra Kumar Arya
- University of Allahabad, Department of Biochemistry, allahabad, ALLAHABAD, UTTAR PRADESH, India, 211002
| | - Raushan Kumar
- University of Allahabad, Department of Biochemistry, Allahabad, Uttar Pradesh, India
| | - Shambhoo Sharan Tripathi
- University of Allahabad, Department of Biochemistry, Fauclty of Science, UNIVERSITY OF ALLAHABAD, PRYAGRAJ, Uttar Pradesh, India, 211002
| | - Syed Ibrahim Rizvi
- University of Allahabad, Department of Biochemistry, faculty of Science, Allahabad, Uttar Pradesh, India, 211002
- India
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27
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Cheng M, Wang H, Yang G, Cheng Y, Yang Z, Chen X, Liu Y, Sun Z. Sustained developmental endothelial locus-1 overexpression promotes spinal cord injury recovery in mice through the SIRT1/SERCA2 signaling pathway. Brain Res Bull 2022; 181:65-76. [DOI: 10.1016/j.brainresbull.2022.01.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 01/04/2022] [Accepted: 01/22/2022] [Indexed: 11/16/2022]
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28
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Fornasiero F, Scapin C, Vitadello M, Pizzo P, Gorza L. Active nNOS Is Required for Grp94-Induced Antioxidant Cytoprotection: A Lesson from Myogenic to Cancer Cells. Int J Mol Sci 2022; 23:ijms23062915. [PMID: 35328344 PMCID: PMC8954037 DOI: 10.3390/ijms23062915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 03/02/2022] [Accepted: 03/04/2022] [Indexed: 11/16/2022] Open
Abstract
The endoplasmic reticulum (ER) chaperone Grp94/gp96 appears to be involved in cytoprotection without being required for cell survival. This study compared the effects of Grp94 protein levels on Ca2+ homeostasis, antioxidant cytoprotection and protein–protein interactions between two widely studied cell lines, the myogenic C2C12 and the epithelial HeLa, and two breast cancer cell lines, MDA-MB-231 and HS578T. In myogenic cells, but not in HeLa, Grp94 overexpression exerted cytoprotection by reducing ER Ca2+ storage, due to an inhibitory effect on SERCA2. In C2C12 cells, but not in HeLa, Grp94 co-immunoprecipitated with non-client proteins, such as nNOS, SERCA2 and PMCA, which co-fractionated by sucrose gradient centrifugation in a distinct, medium density, ER vesicular compartment. Active nNOS was also required for Grp94-induced cytoprotection, since its inhibition by L-NNA disrupted the co-immunoprecipitation and co-fractionation of Grp94 with nNOS and SERCA2, and increased apoptosis. Comparably, only the breast cancer cell line MDA-MB-231, which showed Grp94 co-immunoprecipitation with nNOS, SERCA2 and PMCA, increased oxidant-induced apoptosis after nNOS inhibition or Grp94 silencing. These results identify the Grp94-driven multiprotein complex, including active nNOS as mechanistically involved in antioxidant cytoprotection by means of nNOS activity and improved Ca2+ homeostasis.
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Affiliation(s)
- Filippo Fornasiero
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy; (F.F.); (C.S.); (P.P.)
| | - Cristina Scapin
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy; (F.F.); (C.S.); (P.P.)
| | - Maurizio Vitadello
- CNR-Neuroscience Institute, National Research Council, 35131 Padova, Italy;
| | - Paola Pizzo
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy; (F.F.); (C.S.); (P.P.)
- CNR-Neuroscience Institute, National Research Council, 35131 Padova, Italy;
| | - Luisa Gorza
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy; (F.F.); (C.S.); (P.P.)
- Correspondence:
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Immanuel T, Li J, Green TN, Bogdanova A, Kalev-Zylinska ML. Deregulated calcium signaling in blood cancer: Underlying mechanisms and therapeutic potential. Front Oncol 2022; 12:1010506. [PMID: 36330491 PMCID: PMC9623116 DOI: 10.3389/fonc.2022.1010506] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Accepted: 09/21/2022] [Indexed: 02/05/2023] Open
Abstract
Intracellular calcium signaling regulates diverse physiological and pathological processes. In solid tumors, changes to calcium channels and effectors via mutations or changes in expression affect all cancer hallmarks. Such changes often disrupt transport of calcium ions (Ca2+) in the endoplasmic reticulum (ER) or mitochondria, impacting apoptosis. Evidence rapidly accumulates that this is similar in blood cancer. Principles of intracellular Ca2+ signaling are outlined in the introduction. We describe different Ca2+-toolkit components and summarize the unique relationship between extracellular Ca2+ in the endosteal niche and hematopoietic stem cells. The foundational data on Ca2+ homeostasis in red blood cells is discussed, with the demonstration of changes in red blood cell disorders. This leads to the role of Ca2+ in neoplastic erythropoiesis. Then we expand onto the neoplastic impact of deregulated plasma membrane Ca2+ channels, ER Ca2+ channels, Ca2+ pumps and exchangers, as well as Ca2+ sensor and effector proteins across all types of hematologic neoplasms. This includes an overview of genetic variants in the Ca2+-toolkit encoding genes in lymphoid and myeloid cancers as recorded in publically available cancer databases. The data we compiled demonstrate that multiple Ca2+ homeostatic mechanisms and Ca2+ responsive pathways are altered in hematologic cancers. Some of these alterations may have genetic basis but this requires further investigation. Most changes in the Ca2+-toolkit do not appear to define/associate with specific disease entities but may influence disease grade, prognosis, treatment response, and certain complications. Further elucidation of the underlying mechanisms may lead to novel treatments, with the aim to tailor drugs to different patterns of deregulation. To our knowledge this is the first review of its type in the published literature. We hope that the evidence we compiled increases awareness of the calcium signaling deregulation in hematologic neoplasms and triggers more clinical studies to help advance this field.
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Affiliation(s)
- Tracey Immanuel
- Blood and Cancer Biology Laboratory, Department of Molecular Medicine and Pathology, University of Auckland, Auckland, New Zealand
| | - Jixia Li
- Blood and Cancer Biology Laboratory, Department of Molecular Medicine and Pathology, University of Auckland, Auckland, New Zealand
- Department of Laboratory Medicine, School of Medicine, Foshan University, Foshan City, China
| | - Taryn N. Green
- Blood and Cancer Biology Laboratory, Department of Molecular Medicine and Pathology, University of Auckland, Auckland, New Zealand
| | - Anna Bogdanova
- Red Blood Cell Research Group, Institute of Veterinary Physiology, Vetsuisse Faculty, University of Zurich, Zürich, Switzerland
- Zurich Center for Integrative Human Physiology, University of Zurich, Zürich, Switzerland
| | - Maggie L. Kalev-Zylinska
- Blood and Cancer Biology Laboratory, Department of Molecular Medicine and Pathology, University of Auckland, Auckland, New Zealand
- Haematology Laboratory, Department of Pathology and Laboratory Medicine, Auckland City Hospital, Auckland, New Zealand
- *Correspondence: Maggie L. Kalev-Zylinska,
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Mohanta TK, Al-Harrasi A. Fungal genomes: suffering with functional annotation errors. IMA Fungus 2021; 12:32. [PMID: 34724975 PMCID: PMC8559351 DOI: 10.1186/s43008-021-00083-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Accepted: 10/26/2021] [Indexed: 11/10/2022] Open
Abstract
Background The genome sequence data of more than 65985 species are publicly available as of October 2021 within the National Center for Biotechnology Information (NCBI) database alone and additional genome sequences are available in other databases and also continue to accumulate at a rapid pace. However, an error-free functional annotation of these genome is essential for the research communities to fully utilize these data in an optimum and efficient manner. Results An analysis of proteome sequence data of 689 fungal species (7.15 million protein sequences) was conducted to identify the presence of functional annotation errors. Proteins associated with calcium signaling events, including calcium dependent protein kinases (CDPKs), calmodulins (CaM), calmodulin-like (CML) proteins, WRKY transcription factors, selenoproteins, and proteins associated with the terpene biosynthesis pathway, were targeted in the analysis. Gene associated with CDPKs and selenoproteins are known to be absent in fungal genomes. Our analysis, however, revealed the presence of proteins that were functionally annotated as CDPK proteins. However, InterproScan analysis indicated that none of the protein sequences annotated as “calcium dependent protein kinase” were found to encode calcium binding EF-hands at the regulatory domain. Similarly, none of a protein sequences annotated as a “selenocysteine” were found to contain a Sec (U) amino acid. Proteins annotated as CaM and CMLs also had significant discrepancies. CaM proteins should contain four calcium binding EF-hands, however, a range of 2–4 calcium binding EF-hands were present in the fungal proteins that were annotated as CaM proteins. Similarly, CMLs should possess four calcium binding EF-hands, but some of the CML annotated fungal proteins possessed either three or four calcium binding EF-hands. WRKY transcription factors are characterized by the presence of a WRKY domain and are confined to the plant kingdom. Several fungal proteins, however, were annotated as WRKY transcription factors, even though they did not contain a WRKY domain. Conclusion The presence of functional annotation errors in fungal genome and proteome databases is of considerable concern and needs to be addressed in a timely manner. Supplementary Information The online version contains supplementary material available at 10.1186/s43008-021-00083-x.
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Affiliation(s)
- Tapan Kumar Mohanta
- Natural and Medical Sciences Research Center, University of Nizwa, 616, Nizwa, Oman.
| | - Ahmed Al-Harrasi
- Natural and Medical Sciences Research Center, University of Nizwa, 616, Nizwa, Oman.
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Conte E, Imbrici P, Mantuano P, Coppola MA, Camerino GM, De Luca A, Liantonio A. Alteration of STIM1/Orai1-Mediated SOCE in Skeletal Muscle: Impact in Genetic Muscle Diseases and Beyond. Cells 2021; 10:2722. [PMID: 34685702 PMCID: PMC8534495 DOI: 10.3390/cells10102722] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 10/05/2021] [Accepted: 10/08/2021] [Indexed: 02/08/2023] Open
Abstract
Intracellular Ca2+ ions represent a signaling mediator that plays a critical role in regulating different muscular cellular processes. Ca2+ homeostasis preservation is essential for maintaining skeletal muscle structure and function. Store-operated Ca2+ entry (SOCE), a Ca2+-entry process activated by depletion of intracellular stores contributing to the regulation of various function in many cell types, is pivotal to ensure a proper Ca2+ homeostasis in muscle fibers. It is coordinated by STIM1, the main Ca2+ sensor located in the sarcoplasmic reticulum, and ORAI1 protein, a Ca2+-permeable channel located on transverse tubules. It is commonly accepted that Ca2+ entry via SOCE has the crucial role in short- and long-term muscle function, regulating and adapting many cellular processes including muscle contractility, postnatal development, myofiber phenotype and plasticity. Lack or mutations of STIM1 and/or Orai1 and the consequent SOCE alteration have been associated with serious consequences for muscle function. Importantly, evidence suggests that SOCE alteration can trigger a change of intracellular Ca2+ signaling in skeletal muscle, participating in the pathogenesis of different progressive muscle diseases such as tubular aggregate myopathy, muscular dystrophy, cachexia, and sarcopenia. This review provides a brief overview of the molecular mechanisms underlying STIM1/Orai1-dependent SOCE in skeletal muscle, focusing on how SOCE alteration could contribute to skeletal muscle wasting disorders and on how SOCE components could represent pharmacological targets with high therapeutic potential.
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Affiliation(s)
- Elena Conte
- Department of Pharmacy-Drug Sciences, University of Bari “Aldo Moro”, 70125 Bari, Italy; (P.I.); (P.M.); (M.A.C.); (G.M.C.); (A.D.L.)
| | | | | | | | | | | | - Antonella Liantonio
- Department of Pharmacy-Drug Sciences, University of Bari “Aldo Moro”, 70125 Bari, Italy; (P.I.); (P.M.); (M.A.C.); (G.M.C.); (A.D.L.)
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The Effect of A2E on the Uptake and Release of Calcium in the Lysosomes and Mitochondria of Human RPE Cells Exposed to Blue Light. J Ophthalmol 2021; 2021:5586659. [PMID: 34603771 PMCID: PMC8486552 DOI: 10.1155/2021/5586659] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 08/26/2021] [Accepted: 09/02/2021] [Indexed: 02/05/2023] Open
Abstract
We aimed to explore the effect of N-retinylidene-N-retinylethanolamine (A2E) on the uptake and release of calcium in lysosomes and mitochondria by establishing a model of human retinal pigment epithelial (RPE) cell injury induced by exposure to blue light. Primary human RPE cells were cultured from passages 4 to 6 and exposed to blue light at an intensity of 2000 ± 500 lux for 6 hours. After blue light exposure, the culture was maintained for 24 hours. A2E at a final concentration of 25 μM was added to the culture 2 hours before light exposure, and nifedipine at a final concentration of 10−4 M was added 1 hour before light exposure. The levels of Ca2+ in the cytosol (CaTM/2AM), mitochondria (Rhod/2AM), and lysosomes (LysoTracker Red and Fluo-3/AM) were determined. In order to measure the calcium levels in the different organelles, RPE were imaged using a laser scanning confocal microscope. Moreover, changes in the mitochondrial membrane potential were detected by flow cytometry analysis of JC-1-stained cells. The obtained results revealed that blue light illumination increased the calcium fluorescence intensity in the cytoplasm, mitochondria, and lysosomes of human RPE cells when compared with the control cells (P < 0.05). After A2E treatment, the fluorescence intensity of the calcium in the cytoplasm was further increased (P < 0.05), while that in the mitochondria and lysosomes decreased (P < 0.05). In addition, we observed that nifedipine reduced the fluorescence intensity of calcium in the RPE cells. Our results also showed that the mitochondrial membrane potential in the RPE treated with blue light and A2E was lower than that in the control, blue light, and A2E-treated cells (P < 0.05). Blue light increased calcium levels in the cytoplasm, lysosomes, and mitochondria of RPE cells. A2E damages the lysosomal and mitochondrial membranes, resulting in calcium release into the cytoplasm. Finally, our results demonstrated that both blue light and A2E treatments reduced mitochondrial membrane potential, increasing cytosolic Ca2+ levels, which can contribute to the activation of RPE death.
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Merino-Wong M, Niemeyer BA, Alansary D. Plasma Membrane Calcium ATPase Regulates Stoichiometry of CD4 + T-Cell Compartments. Front Immunol 2021; 12:687242. [PMID: 34093590 PMCID: PMC8175910 DOI: 10.3389/fimmu.2021.687242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 05/04/2021] [Indexed: 11/13/2022] Open
Abstract
Immune responses involve mobilization of T cells within naïve and memory compartments. Tightly regulated Ca2+ levels are essential for balanced immune outcomes. How Ca2+ contributes to regulating compartment stoichiometry is unknown. Here, we show that plasma membrane Ca2+ ATPase 4 (PMCA4) is differentially expressed in human CD4+ T compartments yielding distinct store operated Ca2+ entry (SOCE) profiles. Modulation of PMCA4 yielded a more prominent increase of SOCE in memory than in naïve CD4+ T cell. Interestingly, downregulation of PMCA4 reduced the effector compartment fraction and led to accumulation of cells in the naïve compartment. In silico analysis and chromatin immunoprecipitation point towards Ying Yang 1 (YY1) as a transcription factor regulating PMCA4 expression. Analyses of PMCA and YY1 expression patterns following activation and of PMCA promoter activity following downregulation of YY1 highlight repressive role of YY1 on PMCA expression. Our findings show that PMCA4 adapts Ca2+ levels to cellular requirements during effector and quiescent phases and thereby represent a potential target to intervene with the outcome of the immune response.
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Affiliation(s)
| | | | - Dalia Alansary
- Molecular Biophysics, Saarland University, Homburg, Germany
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34
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Díaz-García CM, Meyer DJ, Nathwani N, Rahman M, Martínez-François JR, Yellen G. The distinct roles of calcium in rapid control of neuronal glycolysis and the tricarboxylic acid cycle. eLife 2021; 10:e64821. [PMID: 33555254 PMCID: PMC7870136 DOI: 10.7554/elife.64821] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 01/26/2021] [Indexed: 12/31/2022] Open
Abstract
When neurons engage in intense periods of activity, the consequent increase in energy demand can be met by the coordinated activation of glycolysis, the tricarboxylic acid (TCA) cycle, and oxidative phosphorylation. However, the trigger for glycolytic activation is unknown and the role for Ca2+ in the mitochondrial responses has been debated. Using genetically encoded fluorescent biosensors and NAD(P)H autofluorescence imaging in acute hippocampal slices, here we find that Ca2+ uptake into the mitochondria is responsible for the buildup of mitochondrial NADH, probably through Ca2+ activation of dehydrogenases in the TCA cycle. In the cytosol, we do not observe a role for the Ca2+/calmodulin signaling pathway, or AMPK, in mediating the rise in glycolytic NADH in response to acute stimulation. Aerobic glycolysis in neurons is triggered mainly by the energy demand resulting from either Na+ or Ca2+ extrusion, and in mouse dentate granule cells, Ca2+ creates the majority of this demand.
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Affiliation(s)
| | - Dylan J Meyer
- Department of Neurobiology, Harvard Medical SchoolBostonUnited States
| | - Nidhi Nathwani
- Department of Neurobiology, Harvard Medical SchoolBostonUnited States
| | - Mahia Rahman
- Department of Neurobiology, Harvard Medical SchoolBostonUnited States
| | | | - Gary Yellen
- Department of Neurobiology, Harvard Medical SchoolBostonUnited States
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35
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Hwang SM, Lee JY, Park CK, Kim YH. The Role of TRP Channels and PMCA in Brain Disorders: Intracellular Calcium and pH Homeostasis. Front Cell Dev Biol 2021; 9:584388. [PMID: 33585474 PMCID: PMC7876282 DOI: 10.3389/fcell.2021.584388] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 01/06/2021] [Indexed: 12/19/2022] Open
Abstract
Brain disorders include neurodegenerative diseases (NDs) with different conditions that primarily affect the neurons and glia in the brain. However, the risk factors and pathophysiological mechanisms of NDs have not been fully elucidated. Homeostasis of intracellular Ca2+ concentration and intracellular pH (pHi) is crucial for cell function. The regulatory processes of these ionic mechanisms may be absent or excessive in pathological conditions, leading to a loss of cell death in distinct regions of ND patients. Herein, we review the potential involvement of transient receptor potential (TRP) channels in NDs, where disrupted Ca2+ homeostasis leads to cell death. The capability of TRP channels to restore or excite the cell through Ca2+ regulation depending on the level of plasma membrane Ca2+ ATPase (PMCA) activity is discussed in detail. As PMCA simultaneously affects intracellular Ca2+ regulation as well as pHi, TRP channels and PMCA thus play vital roles in modulating ionic homeostasis in various cell types or specific regions of the brain where the TRP channels and PMCA are expressed. For this reason, the dysfunction of TRP channels and/or PMCA under pathological conditions disrupts neuronal homeostasis due to abnormal Ca2+ and pH levels in the brain, resulting in various NDs. This review addresses the function of TRP channels and PMCA in controlling intracellular Ca2+ and pH, which may provide novel targets for treating NDs.
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Affiliation(s)
- Sung-Min Hwang
- Gachon Pain Center, Department of Physiology, Gachon University College of Medicine, Incheon, South Korea
| | - Ji Yeon Lee
- Gil Medical Center, Department of Anesthesiology and Pain Medicine, Gachon University, Incheon, South Korea
| | - Chul-Kyu Park
- Gachon Pain Center, Department of Physiology, Gachon University College of Medicine, Incheon, South Korea
| | - Yong Ho Kim
- Gachon Pain Center, Department of Physiology, Gachon University College of Medicine, Incheon, South Korea
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36
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Dyla M, Kjærgaard M, Poulsen H, Nissen P. Structure and Mechanism of P-Type ATPase Ion Pumps. Annu Rev Biochem 2020; 89:583-603. [PMID: 31874046 DOI: 10.1146/annurev-biochem-010611-112801] [Citation(s) in RCA: 92] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
P-type ATPases are found in all kingdoms of life and constitute a wide range of cation transporters, primarily for H+, Na+, K+, Ca2+, and transition metal ions such as Cu(I), Zn(II), and Cd(II). They have been studied through a wide range of techniques, and research has gained very significant insight on their transport mechanism and regulation. Here, we review the structure, function, and dynamics of P2-ATPases including Ca2+-ATPases and Na,K-ATPase. We highlight mechanisms of functional transitions that are associated with ion exchange on either side of the membrane and how the functional cycle is regulated by interaction partners, autoregulatory domains, and off-cycle states. Finally, we discuss future perspectives based on emerging techniques and insights.
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Affiliation(s)
- Mateusz Dyla
- Department of Molecular Biology and Genetics, Aarhus University, 8000 Aarhus, Denmark; .,Danish Research Institute of Translational Neuroscience (DANDRITE), Nordic European Molecular Biology Laboratory (EMBL) Partnership for Molecular Medicine, 8000 Aarhus, Denmark
| | - Magnus Kjærgaard
- Department of Molecular Biology and Genetics, Aarhus University, 8000 Aarhus, Denmark; .,Danish Research Institute of Translational Neuroscience (DANDRITE), Nordic European Molecular Biology Laboratory (EMBL) Partnership for Molecular Medicine, 8000 Aarhus, Denmark
| | - Hanne Poulsen
- Department of Molecular Biology and Genetics, Aarhus University, 8000 Aarhus, Denmark; .,Danish Research Institute of Translational Neuroscience (DANDRITE), Nordic European Molecular Biology Laboratory (EMBL) Partnership for Molecular Medicine, 8000 Aarhus, Denmark
| | - Poul Nissen
- Department of Molecular Biology and Genetics, Aarhus University, 8000 Aarhus, Denmark; .,Danish Research Institute of Translational Neuroscience (DANDRITE), Nordic European Molecular Biology Laboratory (EMBL) Partnership for Molecular Medicine, 8000 Aarhus, Denmark
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Czeredys M. Dysregulation of Neuronal Calcium Signaling via Store-Operated Channels in Huntington's Disease. Front Cell Dev Biol 2020; 8:611735. [PMID: 33425919 PMCID: PMC7785827 DOI: 10.3389/fcell.2020.611735] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 12/01/2020] [Indexed: 12/17/2022] Open
Abstract
Huntington's disease (HD) is a progressive neurodegenerative disorder that is characterized by motor, cognitive, and psychiatric problems. It is caused by a polyglutamine expansion in the huntingtin protein that leads to striatal degeneration via the transcriptional dysregulation of several genes, including genes that are involved in the calcium (Ca2+) signalosome. Recent research has shown that one of the major Ca2+ signaling pathways, store-operated Ca2+ entry (SOCE), is significantly elevated in HD. SOCE refers to Ca2+ flow into cells in response to the depletion of endoplasmic reticulum Ca2+ stores. The dysregulation of Ca2+ homeostasis is postulated to be a cause of HD progression because the SOCE pathway is indirectly and abnormally activated by mutant huntingtin (HTT) in γ-aminobutyric acid (GABA)ergic medium spiny neurons (MSNs) from the striatum in HD models before the first symptoms of the disease appear. The present review summarizes recent studies that revealed a relationship between HD pathology and elevations of SOCE in different models of HD, including YAC128 mice (a transgenic model of HD), cellular HD models, and induced pluripotent stem cell (iPSC)-based GABAergic medium spiny neurons (MSNs) that are obtained from adult HD patient fibroblasts. SOCE in MSNs was shown to be mediated by currents through at least two different channel groups, Ca2+ release-activated Ca2+ current (ICRAC) and store-operated Ca2+ current (ISOC), which are composed of stromal interaction molecule (STIM) proteins and Orai or transient receptor potential channel (TRPC) channels. Their role under physiological and pathological conditions in HD are discussed. The role of Huntingtin-associated protein 1 isoform A in elevations of SOCE in HD MSNs and potential compounds that may stabilize elevations of SOCE in HD are also summarized. Evidence is presented that shows that the dysregulation of molecular components of SOCE or pathways upstream of SOCE in HD MSN neurons is a hallmark of HD, and these changes could lead to HD pathology, making them potential therapeutic targets.
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Affiliation(s)
- Magdalena Czeredys
- Laboratory of Neurodegeneration, International Institute of Molecular and Cell Biology in Warsaw, Warsaw, Poland
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38
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Tsyvkin VN, Prudnikov IM, Smirnov AN, Pristash IV. Partial Inhibition of Na+/K+-ATPase and Plasma Membrane Ca2+-ATPase from the Rat Cerebral Cortex by S-Nitrosoglutathione. NEUROPHYSIOLOGY+ 2020. [DOI: 10.1007/s11062-020-09868-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Dejos C, Gkika D, Cantelmo AR. The Two-Way Relationship Between Calcium and Metabolism in Cancer. Front Cell Dev Biol 2020; 8:573747. [PMID: 33282859 PMCID: PMC7691323 DOI: 10.3389/fcell.2020.573747] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 10/12/2020] [Indexed: 12/14/2022] Open
Abstract
Calcium ion (Ca2+) signaling is critical to many physiological processes, and its kinetics and subcellular localization are tightly regulated in all cell types. All Ca2+ flux perturbations impact cell function and may contribute to various diseases, including cancer. Several modulators of Ca2+ signaling are attractive pharmacological targets due to their accessibility at the plasma membrane. Despite this, the number of specific inhibitors is still limited, and to date there are no anticancer drugs in the clinic that target Ca2+ signaling. Ca2+ dynamics are impacted, in part, by modifications of cellular metabolic pathways. Conversely, it is well established that Ca2+ regulates cellular bioenergetics by allosterically activating key metabolic enzymes and metabolite shuttles or indirectly by modulating signaling cascades. A coordinated interplay between Ca2+ and metabolism is essential in maintaining cellular homeostasis. In this review, we provide a snapshot of the reciprocal interaction between Ca2+ and metabolism and discuss the potential consequences of this interplay in cancer cells. We highlight the contribution of Ca2+ to the metabolic reprogramming observed in cancer. We also describe how the metabolic adaptation of cancer cells influences this crosstalk to regulate protumorigenic signaling pathways. We suggest that the dual targeting of these processes might provide unprecedented opportunities for anticancer strategies. Interestingly, promising evidence for the synergistic effects of antimetabolites and Ca2+-modulating agents is emerging.
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Affiliation(s)
- Camille Dejos
- Univ. Lille, Inserm, U1003 - PHYCEL - Physiologie Cellulaire, Lille, France
| | - Dimitra Gkika
- Univ. Lille, CNRS, INSERM, CHU Lille, Centre Oscar Lambret, UMR 9020-UMR 1277-Canther-Cancer Heterogeneity, Plasticity and Resistance to Therapies, Lille, France.,Institut Universitaire de France (IUF), Paris, France
| | - Anna Rita Cantelmo
- Univ. Lille, Inserm, U1003 - PHYCEL - Physiologie Cellulaire, Lille, France
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40
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Calcium signaling and epigenetics: A key point to understand carcinogenesis. Cell Calcium 2020; 91:102285. [PMID: 32942140 DOI: 10.1016/j.ceca.2020.102285] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 08/22/2020] [Accepted: 08/26/2020] [Indexed: 02/07/2023]
Abstract
Calcium (Ca2+) signaling controls a wide range of cellular processes, including the hallmarks of cancer. The Ca2+ signaling system encompasses several types of proteins, such as receptors, channels, pumps, exchangers, buffers, and sensors, of which several are mutated or with altered expression in cancer cells. Since epigenetic mechanisms are disrupted in all stages of carcinogenesis, and reversibly regulate gene expression, they have been studied by different research groups to understand their role in Ca2+ signaling remodeling in cancer cells and the carcinogenic process. In this review, we link Ca2+ signaling, cancer, and epigenetics fields to generate a comprehensive landscape of this complex group of diseases.
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Wan JZ, Wang R, Zhou ZY, Deng LL, Zhang CC, Liu CQ, Zhao HX, Yuan CF, He YM, Dun YY, Yuan D, Wang T. Saponins of Panax japonicus Confer Neuroprotection against Brain Aging through Mitochondrial Related Oxidative Stress and Autophagy in Rats. Curr Pharm Biotechnol 2020; 21:667-680. [PMID: 31840608 DOI: 10.2174/1389201021666191216114815] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 07/31/2019] [Accepted: 11/21/2019] [Indexed: 12/20/2022]
Abstract
BACKGROUND Oxidative stress and mitochondrial dysfunction play a vital role in the pathogenesis of brain aging. Saponins from Panax japonicus (SPJ) have attracted much attention for their potential to attenuate age-related oxidative stress as the main ingredient in rhizomes of Panax japonicus. OBJECTIVE This study aimed to investigate the neuroprotective effects of SPJ on natural aging rats as well as the underlying mechanisms regarding oxidative stress and mitochondrial pathway. METHODS Sprague-Dawley rats were divided into control groups (3-, 9-, 15- and 24-month old groups) and SPJ-treated groups. For SPJ-treated groups, SPJ were orally administrated to 18-month old rats at doses of 10 mg/kg, 30 mg/kg and 60 mg/kg once daily. Control groups were given the same volume of saline. After the treatment with SPJ or saline for six months, the cortex and hippocampus were rapidly harvested and deposited at -80°C after the rats were decapitated under anesthesia. The neuroprotective effects of SPJ were estimated by histopathological observation, TUNEL detection, biochemical determination and western blotting. RESULTS SPJ improved pathomorphological changes in neuronal cells and decreased apoptosis in the cortex and hippocampus of aging rats, increased the activities of superoxide dismutase (SOD), glutathione peroxidase (GSH-Px), Na+/K+-ATPase, Ca2+-ATPase and Ca2+/Mg2+-ATPase whereas, decreased malondialdehyde (MDA) contents in the cortex of aging rats. Furthermore, the SPJ increased silent mating type information regulation 2 homolog-1 (SIRT1) protein expression, decreased acetylated level of peroxisome proliferator-activated receptor-γ coactivator-1α (PGC-1α) in the cortex and hippocampus of aging rats, and reversed the aging-induced decline of Forkhead box O3 (Foxo3a), Superoxide Dismutase 2 (SOD2), microtubule-associated protein light chain 3 (LC3II) and Beclin1 levels in the cortex and hippocampus. CONCLUSION Our data showed that SPJ conferred neuroprotection partly through the regulation of oxidative stress and mitochondria-related pathways in aging rats.
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Affiliation(s)
- Jing-Zhi Wan
- College of Medical Science, Three Gorges University, Yichang, Hubei 443002, China
| | - Rui Wang
- College of Medical Science, Three Gorges University, Yichang, Hubei 443002, China
| | - Zhi-Yong Zhou
- College of Medical Science, Three Gorges University, Yichang, Hubei 443002, China
| | - Li-Li Deng
- College of Medical Science, Three Gorges University, Yichang, Hubei 443002, China
| | - Chang-Cheng Zhang
- College of Medical Science, Three Gorges University, Yichang, Hubei 443002, China
| | - Chao-Qi Liu
- College of Medical Science, Three Gorges University, Yichang, Hubei 443002, China
| | - Hai-Xia Zhao
- College of Medical Science, Three Gorges University, Yichang, Hubei 443002, China
| | - Cheng-Fu Yuan
- College of Medical Science, Three Gorges University, Yichang, Hubei 443002, China
| | - Yu-Min He
- College of Medical Science, Three Gorges University, Yichang, Hubei 443002, China
| | - Yao-Yan Dun
- College of Medical Science, Three Gorges University, Yichang, Hubei 443002, China
| | - Ding Yuan
- College of Medical Science, Three Gorges University, Yichang, Hubei 443002, China
| | - Ting Wang
- College of Medical Science, Three Gorges University, Yichang, Hubei 443002, China.,Department of Pharmacy, College of Medicine, Wuhan University of Science and Technology, Wuhan, Hubei Province, China
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Abstract
Calcium (Ca2+) is a universal signalling molecule of life. The Ca2+ signalling is an evolutionarily conserved process from prokaryotes to eukaryotes. Ca2+ at high concentration is deleterious to the cell; therefore, cell maintains a low resting level of intracellular free Ca2+ concentration ([Ca2+]c). The resting [Ca2+]c is tightly regulated, and a transient increase of the [Ca2+]c initiates a signalling cascade in the cell. Ca2+ signalling plays an essential role in various processes, including growth, development, reproduction, tolerance to stress conditions, and virulence in fungi. In this review, we describe the evolutionary aspects of Ca2+ signalling and cell functions of major Ca2+ signalling proteins in different fungi.
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Affiliation(s)
- Avishek Roy
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, India
| | - Ajeet Kumar
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, India
| | - Darshana Baruah
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, India
| | - Ranjan Tamuli
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, India
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Jiang W, Zhang C, Tran L, Wang SG, Hakim AD, Liu H. Engineering Nano-to-Micron-Patterned Polymer Coatings on Bioresorbable Magnesium for Controlling Human Endothelial Cell Adhesion and Morphology. ACS Biomater Sci Eng 2020; 6:3878-3898. [DOI: 10.1021/acsbiomaterials.0c00642] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Wensen Jiang
- Materials Science and Engineering Program, University of California at Riverside, 900 University Avenue, Riverside, California 92521, United States
| | - Chaoxing Zhang
- Materials Science and Engineering Program, University of California at Riverside, 900 University Avenue, Riverside, California 92521, United States
| | - Larry Tran
- Department of Bioengineering, University of California at Riverside, 900 University Avenue, Riverside, California 92521, United States
- Department of Chemical Engineering, University of California at Riverside, 900 University Avenue, Riverside, California 92521, United States
| | - Sebo Gene Wang
- Department of Bioengineering, University of California at Riverside, 900 University Avenue, Riverside, California 92521, United States
- Department of Chemistry, College of Natural and Agricultural Sciences, University of California at Riverside, 900 University Avenue, Riverside, California 92521, United States
| | - Ammar Dilshad Hakim
- Department of Bioengineering, University of California at Riverside, 900 University Avenue, Riverside, California 92521, United States
| | - Huinan Liu
- Materials Science and Engineering Program, University of California at Riverside, 900 University Avenue, Riverside, California 92521, United States
- Department of Bioengineering, University of California at Riverside, 900 University Avenue, Riverside, California 92521, United States
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44
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Mijares A, Espinosa R, Adams J, Lopez JR. Increases in [IP3]i aggravates diastolic [Ca2+] and contractile dysfunction in Chagas' human cardiomyocytes. PLoS Negl Trop Dis 2020; 14:e0008162. [PMID: 32275663 PMCID: PMC7176279 DOI: 10.1371/journal.pntd.0008162] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 04/22/2020] [Accepted: 02/21/2020] [Indexed: 11/18/2022] Open
Abstract
Chagas cardiomyopathy is the most severe manifestation of human Chagas disease and represents the major cause of morbidity and mortality in Latin America. We previously demonstrated diastolic Ca2+ alterations in cardiomyocytes isolated from Chagas' patients to different degrees of cardiac dysfunction. In addition, we have found a significant elevation of diastolic [Na+]d in Chagas' cardiomyocytes (FCII>FCI) that was greater than control. Exposure of cardiomyocytes to agents that enhance inositol 1,4,5 trisphosphate (IP3) generation or concentration like endothelin (ET-1) or bradykinin (BK), or membrane-permeant myoinositol 1,4,5-trisphosphate hexakis(butyryloxy-methyl) esters (IP3BM) caused an elevation in diastolic [Ca2+] ([Ca2+]d) that was always greater in cardiomyocytes from Chagas' than non- Chagas' subjects, and the magnitude of the [Ca2+]d elevation in Chagas' cardiomyocytes was related to the degree of cardiac dysfunction. Incubation with xestospongin-C (Xest-C), a membrane-permeable selective blocker of the IP3 receptors (IP3Rs), significantly reduced [Ca2+]d in Chagas' cardiomyocytes but did not have a significant effect on non-Chagas' cells. The effects of ET-1, BK, and IP3BM on [Ca2+]d were not modified by the removal of extracellular [Ca2+]e. Furthermore, cardiomyocytes from Chagas' patients had a significant decrease in the sarcoplasmic reticulum (SR) Ca2+content compared to control (Control>FCI>FCII), a higher intracellular IP3 concentration ([IP3]i) and markedly depressed contractile properties compared to control cardiomyocytes. These results provide additional and convincing support about the implications of IP3 in the pathogenesis of Chagas cardiomyopathy in patients at different stages of chronic infection. Additionally, these findings open the door for novel therapeutic strategies oriented to improve cardiac function and quality of life of individuals suffering from chronic Chagas cardiomyopathy (CC).
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Affiliation(s)
- Alfredo Mijares
- Centro de Biofísica y Bioquímica, Instituto Venezolano de Investigaciones Científicas, Caracas, Venezuela
| | - Raúl Espinosa
- Departamento de Cardiología, Hospital Miguel Pérez Carreño, Instituto venezolano de los Seguros Sociales, Caracas, Venezuela
| | - José Adams
- Division of Neonatology, Mount Sinai, Medical Center, Miami, FL, United States of America
| | - José R. Lopez
- Department of Research, Mount Sinai, Medical Center, Miami, FL, United States of America
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45
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Chen S, Zhao H, Yan X, Zhang Z, Hu K, Gao H, Du W, Luo J, Zheng H. 5-Hydroxy-l-tryptophan Promotes the Milk Calcium Level via the miR-99a-3p/ ATP2B1 Axis in Goat Mammary Epithelial Cells. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:3277-3285. [PMID: 32054265 DOI: 10.1021/acs.jafc.9b07869] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
5-Hydroxy-l-tryptophan (5-HTP) is the primary product that converts l-tryptophan into 5-hydroxytryptamine by a rate-limiting enzyme. Our previous study found that 5-HTP could promote the intracellular calcium level in goat mammary epithelial cells (GMECs). Herein, first, dairy goats were injected with 5-HTP or saline daily from 7 days before delivery, and the calcium level in colostrum of 5-HTP-injected goats was significantly higher than that of saline-injected goats. Moreover, miR-99a-3p expression was significantly increased after 5-HTP treatment from transcriptome sequencing analysis and quantitative real-time polymerase chain reaction. In addition, it was found that ATP2B1 is one of the target genes of miR-99a-3p predicted by bioinformatic methods, which plays a crucial role in the maintenance of intracellular calcium homeostasis of mammary epithelial cells. Next, we confirmed that miR-99a-3p could increase the intracellular calcium level via decreasing ATP2B1 in GMECs. Taken together, we draw the conclusion that 5-HTP promotes the calcium level in colostrum possibly by increasing intracellular calcium of mammary epithelial cells induced by the miR-99a-3p/ATP2B1 axis.
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Affiliation(s)
- Shunxin Chen
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Haiying Zhao
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Xiaoru Yan
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Zhifei Zhang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Kaizhao Hu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Huijie Gao
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Wei Du
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Jun Luo
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Huiling Zheng
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
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46
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ANS Interacts with the Ca 2+-ATPase Nucleotide Binding Site. J Fluoresc 2020; 30:483-496. [PMID: 32146650 DOI: 10.1007/s10895-020-02518-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Accepted: 02/14/2020] [Indexed: 10/24/2022]
Abstract
The binding of 8-anilino-1-naphthalene sulfonate (ANS) to the nucleotide binding domain (N-domain) of the sarcoplasmic reticulum Ca2+-ATPase (SERCA) was studied. Molecular docking predicted two ANS binding modes (BMI and BMII) in the nucleotide binding site. The molecular interaction was confirmed as the fluorescence intensity of ANS was dramatically increased when in the presence of an engineered recombinant N-domain. Molecular dynamics simulation showed BMI (which occupies the ATP binding site) as the mode that is stable in solution. The above was confirmed by the absence of ANS fluorescence in the presence of a fluorescein isothiocyanate (FITC)-labeled N-domain. Further, the labeling of the N-domain with FITC was hindered by the presence of ANS, i.e., ANS was bound to the ATP binding site. Importantly, ANS displayed a higher affinity than ATP. In addition, ANS binding led to quenching the N-domain intrinsic fluorescence displaying a FRET pattern, which suggested the existence of a Trp-ANS FRET couple. Nonetheless, the chemical modification of the sole Trp residue with N-bromosuccinimide (NBS) discarded the existence of FRET and instead indicated structural rearrangements in the nucleotide binding site during ANS binding. Finally, Ca2+-ATPase kinetics in the presence of ANS showed a partial mixed-type inhibition. The Dixon plot showed the ANS-Ca2+-ATPase complex as catalytically active, hence supporting the existence of a functional dimeric Ca2+-ATPase in sarcoplasmic reticulum vesicles. ANS may be used as a molecular platform for the development of more effective inhibitors of Ca2+-ATPase and appears to be a new fluorescent probe for the nucleotide binding site. Graphical Abstract Molecular docking of ANS to the nucleotide binding site of Ca2+-ATPase. ANS fluorescence increase reveals molecular interaction.
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47
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García Bossi J, Kumar K, Barberini ML, Domínguez GD, Rondón Guerrero YDC, Marino-Buslje C, Obertello M, Muschietti JP, Estevez JM. The role of P-type IIA and P-type IIB Ca2+-ATPases in plant development and growth. JOURNAL OF EXPERIMENTAL BOTANY 2020; 71:1239-1248. [PMID: 31740935 DOI: 10.1093/jxb/erz521] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Accepted: 11/16/2019] [Indexed: 06/10/2023]
Abstract
As sessile organisms, plants have evolved mechanisms to adapt to variable and rapidly fluctuating environmental conditions. Calcium (Ca2+) in plant cells is a versatile intracellular second messenger that is essential for stimulating short- and long-term responses to environmental stresses through changes in its concentration in the cytosol ([Ca2+]cyt). Increases in [Ca2+]cyt direct the strength and length of these stimuli. In order to terminate them, the cells must then remove the cytosolic Ca2+ against a concentration gradient, either taking it away from the cell or storing it in organelles such as the endoplasmic reticulum (ER) and/or vacuoles. Here, we review current knowledge about the biological roles of plant P-type Ca2+-ATPases as potential actors in the regulation of this cytosolic Ca2+ efflux, with a focus the IIA ER-type Ca2+-ATPases (ECAs) and the IIB autoinhibited Ca2+-ATPases (ACAs). While ECAs are analogous proteins to animal sarcoplasmic-endoplasmic reticulum Ca2+-ATPases (SERCAs), ACAs are equivalent to animal plasma membrane-type ATPases (PMCAs). We examine their expression patterns in cells exhibiting polar growth and consider their appearance during the evolution of the plant lineage. Full details of the functions and coordination of ECAs and ACAs during plant growth and development have not yet been elucidated. Our current understanding of the regulation of fluctuations in Ca2+ gradients in the cytoplasm and organelles during growth is in its infancy, but recent technological advances in Ca2+ imaging are expected to shed light on this subject.
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Affiliation(s)
- Julián García Bossi
- Instituto de Investigaciones en Ingeniería Genética y Biología Molecular, Dr. Héctor Torres (INGEBI-CONICET), Buenos Aires, Argentina
| | - Krishna Kumar
- Fundación Instituto Leloir and Instituto de Investigaciones Bioquímicas de Buenos Aires (IIBBA-CONICET), Buenos Aires, Argentina
- Molecular Plant Biology and Biotechnology Laboratory, CSIR-Central Institute of Medicinal and Aromatic Plants Research Centre, GKVK Post, Bengaluru, India
| | - María Laura Barberini
- Instituto de Investigaciones en Ingeniería Genética y Biología Molecular, Dr. Héctor Torres (INGEBI-CONICET), Buenos Aires, Argentina
| | - Gabriela Díaz Domínguez
- Fundación Instituto Leloir and Instituto de Investigaciones Bioquímicas de Buenos Aires (IIBBA-CONICET), Buenos Aires, Argentina
| | | | - Cristina Marino-Buslje
- Fundación Instituto Leloir and Instituto de Investigaciones Bioquímicas de Buenos Aires (IIBBA-CONICET), Buenos Aires, Argentina
| | - Mariana Obertello
- Instituto de Investigaciones en Ingeniería Genética y Biología Molecular, Dr. Héctor Torres (INGEBI-CONICET), Buenos Aires, Argentina
| | - Jorge P Muschietti
- Instituto de Investigaciones en Ingeniería Genética y Biología Molecular, Dr. Héctor Torres (INGEBI-CONICET), Buenos Aires, Argentina
- Departamento de Biodiversidad y Biología Experimental, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Int. Güiraldes, Ciudad Universitaria, Pabellón II, Buenos Aires, Argentina
| | - José M Estevez
- Fundación Instituto Leloir and Instituto de Investigaciones Bioquímicas de Buenos Aires (IIBBA-CONICET), Buenos Aires, Argentina
- Centro de Biotecnología Vegetal (CBV), Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile
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48
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Thongprayoon C, Cheungpasitporn W, Chewcharat A, Mao MA, Thirunavukkarasu S, Kashani KB. Hospital mortality and long-term mortality among hospitalized patients with various admission serum ionized calcium levels. Postgrad Med 2020; 132:385-390. [PMID: 32066311 DOI: 10.1080/00325481.2020.1728980] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUND We conducted a single-center historical cohort study to evaluate the association between admission serum ionized calcium and mortality in hospitalized patients. METHODS We included hospitalized patients from January 2009 to December 2013 who had available serum ionized calcium at the time of admission. We assessed the in-hospital and 1-year mortality risk based on admission serum ionized calcium using multivariate logistic and Cox proportional hazard analysis, respectively. To test non-linear association, we categorized serum ionized calcium into six groups; ≤4.39, 4.40-4.59, 4.60-4.79, 4.80-4.99, 5.00-5.19, ≥5.20 mg/dL and selected serum ionized calcium of 4.80-4.99 mg/dL as a reference group. RESULTS We studied a total of 33,255 hospitalized patients. The mean admission serum ionized calcium at 4.8 ± 0.4 mg/dL. Hospital and 1-year mortality observed in 1,099 (3%) and 5,239 (15.8%), respectively. We observed a U-shaped association between admission serum ionized calcium and in-hospital and 1-year mortality. Ionized calcium lower threshold for increased in-hospital and 1-year mortality rates was ≤4.59 and ≤4.39 mg/dL, respectively. Ionized calcium upper threshold for increased in-hospital and 1-year mortality rates was ≥5.20 mg/dL. CONCLUSION Both hypocalcemia and hypercalcemia were associated with increased short- and long-term mortality with a U-shape relationship.
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Affiliation(s)
- Charat Thongprayoon
- Division of Nephrology and Hypertension, Department of Medicine, Mayo Clinic , Rochester, MN, USA
| | - Wisit Cheungpasitporn
- Division of Nephrology, Department of Internal Medicine, University of Mississippi Medical Center , Jackson, Mississippi, USA
| | - Api Chewcharat
- Division of Nephrology and Hypertension, Department of Medicine, Mayo Clinic , Rochester, MN, USA
| | - Michael A Mao
- Division of Nephrology and Hypertension, Mayo Clinic , Jacksonville, FL, USA
| | - Sorkko Thirunavukkarasu
- Division of Nephrology and Hypertension, Department of Medicine, Mayo Clinic , Rochester, MN, USA
| | - Kianoush B Kashani
- Division of Nephrology and Hypertension, Department of Medicine, Mayo Clinic , Rochester, MN, USA.,Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mayo Clinic , Rochester, MN, USA
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Ellingson PJ, Korogod SM, Kahl TM, Kulagina IB, Makedonsky IA, Cymbalyuk GS. Role of the Plasma Membrane Ca2+-ATPase Pump in the Regulation of Rhythm Generation by an Interstitial Cell of Cajal: A Computational Study. NEUROPHYSIOLOGY+ 2020. [DOI: 10.1007/s11062-020-09825-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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50
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Rodríguez Y, Májeková M. Structural Changes of Sarco/Endoplasmic Reticulum Ca 2+-ATPase Induced by Rutin Arachidonate: A Molecular Dynamics Study. Biomolecules 2020; 10:biom10020214. [PMID: 32024167 PMCID: PMC7072167 DOI: 10.3390/biom10020214] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Revised: 01/15/2020] [Accepted: 01/28/2020] [Indexed: 11/16/2022] Open
Abstract
Sarco/endoplasmic reticulum Ca2+-ATPase (SERCA) maintains the level of calcium concentration in cells by pumping calcium ions from the cytoplasm to the lumen while undergoing substantial conformational changes, which can be stabilized or prevented by various compounds. Here we attempted to clarify the molecular mechanism of action of new inhibitor rutin arachidonate, one of the series of the acylated rutin derivatives. We performed molecular dynamics simulations of SERCA1a protein bound to rutin arachidonate positioned in a pure dipalmitoylphosphatidylcholine bilayer membrane. Our study predicted the molecular basis for the binding of rutin arachidonate towards SERCA1a in the vicinity of the binding site of calcium ions and near the location of the well-known inhibitor thapsigargin. The stable hydrogen bond between Glu771 and rutin arachidonate plays a key role in the binding. SERCA1a is kept in the E2 conformation preventing the formation of important salt bridges between the side chains of several residues, primarily Glu90 and Lys297. All in all, the structural changes induced by the binding of rutin arachidonate to SERCA1a may shift proton balance near the titrable residues Glu771 and Glu309 into neutral species, hence preventing the binding of calcium ions to the transmembrane binding sites and thus affecting calcium homeostasis. Our results could lead towards the design of new types of inhibitors, potential drug candidates for cancer treatment, which could be anchored to the transmembrane region of SERCA1a by a lipophilic fatty acid group.
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Affiliation(s)
- Yoel Rodríguez
- Department of Natural Sciences, Eugenio María de Hostos Community College of The City University of New York, 500 Grand Concourse, Bronx, New York, NY 10451, USA; or
- Department of Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, 1425 Madison Avenue, New York, NY 10029, USA
| | - Magdaléna Májeková
- Center of Experimental Medicine of Slovak Academy of Sciences, Institute of Experimental Pharmacology and Toxicology, Department of Biochemical Pharmacology, Dubravska cesta 9, 841 04 Bratislava, Slovakia
- Correspondence: ; Tel.: +421-2-3229-5709
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