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Sebag SC, Koval OM, Paschke JD, Winters CJ, Comellas AP, Grumbach IM. Corrigendum to “Inhibition of the mitochondrial calcium uniporter prevents IL-13 and allergen-mediated airway epithelial apoptosis and loss of barrier function” [362/2 (2018) 400–411]. Exp Cell Res 2022; 412:113022. [DOI: 10.1016/j.yexcr.2022.113022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Sebag SC, Koval OM, Paschke JD, Winters CJ, Comellas AP, Grumbach IM. Inhibition of the mitochondrial calcium uniporter prevents IL-13 and allergen-mediated airway epithelial apoptosis and loss of barrier function. Exp Cell Res 2017; 362:400-411. [PMID: 29225050 DOI: 10.1016/j.yexcr.2017.12.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Revised: 11/12/2017] [Accepted: 12/06/2017] [Indexed: 01/13/2023]
Abstract
Mitochondria are increasingly recognized as key mediators of acute cellular stress responses in asthma. However, the distinct roles of regulators of mitochondrial physiology on allergic asthma phenotypes are currently unknown. The mitochondrial Ca2+ uniporter (MCU) resides in the inner mitochondrial membrane and controls mitochondrial Ca2+ uptake into the mitochondrial matrix. To understand the function of MCU in models of allergic asthma, in vitro and in vivo studies were performed using models of functional deficiency or knockout of MCU. In primary human respiratory epithelial cells, MCU inhibition abrogated mitochondrial Ca2+ uptake and reactive oxygen species (ROS) production, preserved the mitochondrial membrane potential and protected from apoptosis in response to the pleiotropic Th2 cytokine IL-13. Consequently, epithelial barrier function was maintained with MCU inhibition. Similarly, the endothelial barrier was preserved in respiratory epithelium isolated from MCU-/- mice after exposure to IL-13. In the ovalbumin-model of allergic airway disease, MCU deficiency resulted in decreased apoptosis within the large airway epithelial cells. Concordantly, expression of the tight junction protein ZO-1 was preserved, indicative of maintenance of epithelial barrier function. These data implicate mitochondrial Ca2+ uptake through MCU as a key controller of epithelial cell viability in acute allergic asthma.
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Affiliation(s)
- Sara C Sebag
- Department of Internal Medicine, Carver College of Medicine, University of Iowa, Iowa City, IA, USA
| | - Olha M Koval
- Department of Internal Medicine, Carver College of Medicine, University of Iowa, Iowa City, IA, USA; Veterans Affairs Healthcare System, Iowa City, IA, USA
| | - John D Paschke
- Department of Internal Medicine, Carver College of Medicine, University of Iowa, Iowa City, IA, USA
| | - Christopher J Winters
- Department of Internal Medicine, Carver College of Medicine, University of Iowa, Iowa City, IA, USA
| | - Alejandro P Comellas
- Department of Internal Medicine, Carver College of Medicine, University of Iowa, Iowa City, IA, USA; Veterans Affairs Healthcare System, Iowa City, IA, USA
| | - Isabella M Grumbach
- Department of Internal Medicine, Carver College of Medicine, University of Iowa, Iowa City, IA, USA; Veterans Affairs Healthcare System, Iowa City, IA, USA.
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Morris AS, Sebag SC, Paschke JD, Wongrakpanich A, Ebeid K, Anderson ME, Grumbach IM, Salem AK. Cationic CaMKII Inhibiting Nanoparticles Prevent Allergic Asthma. Mol Pharm 2017; 14:2166-2175. [PMID: 28460526 DOI: 10.1021/acs.molpharmaceut.7b00114] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Asthma is a common lung disease affecting over 300 million people worldwide and is associated with increased reactive oxygen species, eosinophilic airway inflammation, bronchoconstriction, and mucus production. Targeting of novel therapeutic agents to the lungs of patients with asthma may improve efficacy of treatments and minimize side effects. We previously demonstrated that Ca2+/calmodulin-dependent protein kinase (CaMKII) is expressed and activated in the bronchial epithelium of asthmatic patients. CaMKII inhibition in murine models of allergic asthma reduces key disease phenotypes, providing the rationale for targeted CaMKII inhibition as a potential therapeutic approach for asthma. Herein we developed a novel cationic nanoparticle (NP)-based system for delivery of the potent and specific CaMKII inhibitor peptide, CaMKIIN, to airways.1 CaMKIIN-loaded NPs abrogated the severity of allergic asthma in a murine model. These findings provide the basis for development of innovative, site-specific drug delivery therapies, particularly for treatment of pulmonary diseases such as asthma.
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Affiliation(s)
- Angie S Morris
- Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, University of Iowa , 115 South Grand Avenue, S228 PHAR, Iowa City, Iowa 52242, United States
| | - Sara C Sebag
- Department of Internal Medicine, Carver College of Medicine, University of Iowa , 200 Hawkins Drive, Iowa City, Iowa 52242, United States
| | - John D Paschke
- Department of Internal Medicine, Carver College of Medicine, University of Iowa , 200 Hawkins Drive, Iowa City, Iowa 52242, United States
| | | | - Kareem Ebeid
- Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, University of Iowa , 115 South Grand Avenue, S228 PHAR, Iowa City, Iowa 52242, United States
| | - Mark E Anderson
- Department of Medicine, Johns Hopkins University School of Medicine , Baltimore, Maryland 21205, United States
| | - Isabella M Grumbach
- Department of Internal Medicine, Carver College of Medicine, University of Iowa , 200 Hawkins Drive, Iowa City, Iowa 52242, United States.,Iowa City Veterans Affairs Healthcare System , 601 US-6, Iowa City, Iowa 52246, United States
| | - Aliasger K Salem
- Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, University of Iowa , 115 South Grand Avenue, S228 PHAR, Iowa City, Iowa 52242, United States
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Sebag SC, Koval OM, Paschke JD, Winters CJ, Jaffer OA, Dworski R, Sutterwala FS, Anderson ME, Grumbach IM. Mitochondrial CaMKII inhibition in airway epithelium protects against allergic asthma. JCI Insight 2017; 2:e88297. [PMID: 28194433 DOI: 10.1172/jci.insight.88297] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Excessive ROS promote allergic asthma, a condition characterized by airway inflammation, eosinophilic inflammation, and increased airway hyperreactivity (AHR). The mechanisms by which airway ROS are increased and the relationship between increased airway ROS and disease phenotypes are incompletely defined. Mitochondria are an important source of cellular ROS production, and our group discovered that Ca2+/calmodulin-dependent protein kinase II (CaMKII) is present in mitochondria and activated by oxidation. Furthermore, mitochondrial-targeted antioxidant therapy reduced the severity of allergic asthma in a mouse model. Based on these findings, we developed a mouse model of CaMKII inhibition targeted to mitochondria in airway epithelium. We challenged these mice with OVA or Aspergillus fumigatus. Mitochondrial CaMKII inhibition abrogated AHR, inflammation, and eosinophilia following OVA and A. fumigatus challenge. Mitochondrial ROS were decreased after agonist stimulation in the presence of mitochondrial CaMKII inhibition. This correlated with blunted induction of NF-κB, the NLRP3 inflammasome, and eosinophilia in transgenic mice. These findings demonstrate a pivotal role for mitochondrial CaMKII in airway epithelium in mitochondrial ROS generation, eosinophilic inflammation, and AHR, providing insights into how mitochondrial ROS mediate features of allergic asthma.
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Affiliation(s)
- Sara C Sebag
- Department of Internal Medicine, University of Iowa, Iowa City, Iowa, USA
| | - Olha M Koval
- Department of Internal Medicine, University of Iowa, Iowa City, Iowa, USA.,Veterans Affairs Healthcare System, Iowa City, Iowa, USA
| | - John D Paschke
- Department of Internal Medicine, University of Iowa, Iowa City, Iowa, USA
| | | | - Omar A Jaffer
- Department of Internal Medicine, University of Iowa, Iowa City, Iowa, USA
| | - Ryszard Dworski
- Division of Allergy, Pulmonary and Critical Care Medicine, Vanderbilt University, Nashville, Tennessee, USA
| | - Fayyaz S Sutterwala
- Department of Internal Medicine, University of Iowa, Iowa City, Iowa, USA.,Veterans Affairs Healthcare System, Iowa City, Iowa, USA.,Inflammation Program, University of Iowa, Iowa City, Iowa, USA.,Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Mark E Anderson
- Department of Medicine and.,Department of Physiology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Isabella M Grumbach
- Department of Internal Medicine, University of Iowa, Iowa City, Iowa, USA.,Veterans Affairs Healthcare System, Iowa City, Iowa, USA
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Winters CJ, Koval O, Murthy S, Allamargot C, Sebag SC, Paschke JD, Jaffer OA, Carter AB, Grumbach IM. CaMKII inhibition in type II pneumocytes protects from bleomycin-induced pulmonary fibrosis by preventing Ca2+-dependent apoptosis. Am J Physiol Lung Cell Mol Physiol 2015; 310:L86-94. [PMID: 26545899 DOI: 10.1152/ajplung.00132.2015] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Accepted: 10/22/2015] [Indexed: 01/25/2023] Open
Abstract
The calcium and calmodulin-dependent kinase II (CaMKII) translates increases in intracellular Ca(2+) into downstream signaling events. Its function in pulmonary pathologies remains largely unknown. CaMKII is a well-known mediator of apoptosis and regulator of endoplasmic reticulum (ER) Ca(2+). ER stress and apoptosis of type II pneumocytes lead to aberrant tissue repair and progressive collagen deposition in pulmonary fibrosis. Thus we hypothesized that CaMKII inhibition alleviates fibrosis in response to bleomycin by attenuating apoptosis and ER stress of type II pneumocytes. We first established that CaMKII was strongly expressed in the distal respiratory epithelium, in particular in surfactant protein-C-positive type II pneumocytes, and activated after bleomycin instillation. We generated a novel transgenic model of inducible expression of the CaMKII inhibitor peptide AC3-I limited to type II pneumocytes (Tg SPC-AC3-I). Tg SPC-AC3-I mice were protected from development of pulmonary fibrosis after bleomycin exposure compared with wild-type mice. CaMKII inhibition also provided protection from apoptosis in type II pneumocytes in vitro and in vivo. Moreover, intracellular Ca(2+) levels and ER stress were increased by bleomycin and significantly blunted with CaMKII inhibition in vitro. These data demonstrate that CaMKII inhibition prevents type II pneumocyte apoptosis and development of pulmonary fibrosis in response to bleomycin. CaMKII inhibition may therefore be a promising approach to prevent or ameliorate the progression of pulmonary fibrosis.
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Affiliation(s)
| | - Olha Koval
- Department of Internal Medicine, University of Iowa, Iowa City, Iowa
| | - Shubha Murthy
- Department of Internal Medicine, University of Iowa, Iowa City, Iowa
| | - Chantal Allamargot
- Central Microscopy Research Facility, University of Iowa, Iowa City, Iowa
| | - Sara C Sebag
- Department of Internal Medicine, University of Iowa, Iowa City, Iowa
| | - John D Paschke
- Department of Internal Medicine, University of Iowa, Iowa City, Iowa
| | - Omar A Jaffer
- Department of Internal Medicine, University of Iowa, Iowa City, Iowa
| | - A Brent Carter
- Department of Internal Medicine, University of Iowa, Iowa City, Iowa; Free Radical and Radiation Biology Graduate Program, University of Iowa, Iowa City, Iowa; Iowa City Veterans Affairs Healthcare System, Iowa City, Iowa; and Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama
| | - Isabella M Grumbach
- Department of Internal Medicine, University of Iowa, Iowa City, Iowa; Iowa City Veterans Affairs Healthcare System, Iowa City, Iowa; and
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Stiles B, Dunn PE, Paschke JD. Histopathology of a nuclear polyhedrosis infection in Aedes epactius with observations in four additional mosquito species. J Invertebr Pathol 1983; 41:191-202. [PMID: 6132948 DOI: 10.1016/0022-2011(83)90219-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Webb SR, Paschke JD, Wagner GW, Campbell WR. Pathology of mosquito iridescent virus of Aedes taeniorhynchus in cell cultures of Aedes aegypti. J Invertebr Pathol 1976; 27:27-40. [PMID: 1245745 DOI: 10.1016/0022-2011(76)90025-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Webb SR, Paschke JD, Wagner GW, Campbell WR. Bioassay of mosquito iridescent virus of Aedes taeniorhynchus in cell cultures of Aedes aegypti. J Invertebr Pathol 1975; 26:205-12. [PMID: 1159310 DOI: 10.1016/0022-2011(75)90050-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Wagner GW, Webb SR, Paschke JD, Campbell WR. A picornavirus isolated from Aedes taeniorhynchus and its interaction with mosquito iridescent virus. J Invertebr Pathol 1974; 24:380-2. [PMID: 4443612 DOI: 10.1016/0022-2011(74)90149-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Laigo FM, Paschke JD. Variations in total hemocyte counts as induced by a nosemosis in the cabbage looper, Trichoplusia ni. J Invertebr Pathol 1966; 8:175-9. [PMID: 4957247 DOI: 10.1016/0022-2011(66)90126-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Laigo FM, Paschke JD. A microsporidian, Thelohania sp., in Pieris rapae. J Invertebr Pathol 1966; 8:269-70. [PMID: 4957250 DOI: 10.1016/0022-2011(66)90146-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Behnke CN, Paschke JD. Spicaria rileyi (Farlow) Charles and Aspergillus flavus Link, entomogenous fungi of the cabbage looper, Trichoplusia ni (Hübner), in Indiana and Wisconsin. J Invertebr Pathol 1966; 8:103-8. [PMID: 5948338 DOI: 10.1016/0022-2011(66)90109-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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