1
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Kagemichi N, Umemura M, Ishikawa S, Iida Y, Takayasu S, Nagasako A, Nakakaji R, Akimoto T, Ohtake M, Horinouchi T, Yamamoto T, Ishikawa Y. Cytotoxic effects of the cigarette smoke extract of heated tobacco products on human oral squamous cell carcinoma: the role of reactive oxygen species and CaMKK2. J Physiol Sci 2024; 74:35. [PMID: 38918702 PMCID: PMC11197199 DOI: 10.1186/s12576-024-00928-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Accepted: 06/08/2024] [Indexed: 06/27/2024]
Abstract
BACKGROUND The increasing prevalence of heated tobacco products (HTPs) has heightened concerns regarding their potential health risks. Previous studies have demonstrated the toxicity of cigarette smoke extract (CSE) from traditional tobacco's mainstream smoke, even after the removal of nicotine and tar. Our study aimed to investigate the cytotoxicity of CSE derived from HTPs and traditional tobacco, with a particular focus on the role of reactive oxygen species (ROS) and intracellular Ca2+. METHODS A human oral squamous cell carcinoma (OSCC) cell line, HSC-3 was utilized. To prepare CSE, aerosols from HTPs (IQOS) and traditional tobacco products (1R6F reference cigarette) were collected into cell culture media. A cell viability assay, apoptosis assay, western blotting, and Fluo-4 assay were conducted. Changes in ROS levels were measured using electron spin resonance spectroscopy and the high-sensitivity 2',7'-dichlorofluorescein diacetate assay. We performed a knockdown of calcium/calmodulin-dependent protein kinase kinase 2 (CaMKK2) by shRNA lentivirus in OSCC cells. RESULTS CSE from both HTPs and traditional tobacco exhibited cytotoxic effects in OSCC cells. Exposure to CSE from both sources led to an increase in intracellular Ca2+ concentration and induced p38 phosphorylation. Additionally, these extracts prompted cell apoptosis and heightened ROS levels. N-acetylcysteine (NAC) mitigated the cytotoxic effects and p38 phosphorylation. Furthermore, the knockdown of CaMKK2 in HSC-3 cells reduced cytotoxicity, ROS production, and p38 phosphorylation in response to CSE. CONCLUSION Our findings suggest that the CSE from both HTPs and traditional tobacco induce cytotoxicity. This toxicity is mediated by ROS, which are regulated through Ca2+ signaling and CaMKK2 pathways.
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Affiliation(s)
- Nagao Kagemichi
- Cardiovascular Research Institute, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, Japan
- Neurosurgery, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, Japan
| | - Masanari Umemura
- Cardiovascular Research Institute, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, Japan.
| | - Soichiro Ishikawa
- Cardiovascular Research Institute, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, Japan
- Oral and Maxillofacial Surgery, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, Japan
| | - Yu Iida
- Cardiovascular Research Institute, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, Japan
- Neurosurgery, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, Japan
| | - Shota Takayasu
- Cardiovascular Research Institute, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, Japan
| | - Akane Nagasako
- Cardiovascular Research Institute, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, Japan
| | - Rina Nakakaji
- Cardiovascular Research Institute, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, Japan
- Oral and Maxillofacial Surgery, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, Japan
| | - Taisuke Akimoto
- Neurosurgery, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, Japan
| | - Makoto Ohtake
- Neurosurgery, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, Japan
| | - Takahiro Horinouchi
- Cellular Pharmacology, Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido, Japan
| | - Tetsuya Yamamoto
- Neurosurgery, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, Japan
| | - Yoshihiro Ishikawa
- Cardiovascular Research Institute, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, Japan.
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2
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Walker-Franklin I, Onyenwoke RU, Leung T, Huang X, Shipman JG, Kovach A, Sivaraman V. GC/HRMS Analysis of E-Liquids Complements In Vivo Modeling Methods and can Help to Predict Toxicity. ACS OMEGA 2024; 9:26641-26650. [PMID: 38911720 PMCID: PMC11191570 DOI: 10.1021/acsomega.4c03416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Revised: 05/23/2024] [Accepted: 05/27/2024] [Indexed: 06/25/2024]
Abstract
Tobacco smoking is a major risk factor for disease development, with the user inhaling various chemicals known to be toxic. However, many of these chemicals are absent before tobacco is "burned". Similar, detailed data have only more recently being reported for the e-cigarette with regards to chemicals present before and after the e-liquid is "vaped." Here, zebrafish were dosed with vaped e-liquids, while C57-BL/6J mice were vaped using nose-cone only administration. Preliminary assessments were made using e-liquids and GC/HRMS to identify chemical signatures that differ between unvaped/vaped and flavored/unflavored samples. Oxidative stress and inflammatory immune cell response assays were then performed using our in vivo models. Chemical signatures differed, e.g., between unvaped/vaped samples and also between unflavored/flavored e-liquids, with known chemical irritants upregulated in vaped and unvaped flavored e-liquids compared with unflavored e-liquids. However, when possible respiratory irritants were evaluated, these agents were predominantly present in only the vaped e-liquid. Both oxidative stress and inflammatory responses were induced by a menthol-flavored but not a tobacco-flavored e-liquid. Thus, chemical signatures differ between unvaped versus vaped e-liquid samples and also between unflavored versus flavored e-liquids. These flavors also likely play a significant role in the variability of e-liquid characteristics, e.g., pro-inflammatory and/or cytotoxic responses.
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Affiliation(s)
| | - Rob U. Onyenwoke
- Department
of Biological & Biomedical Sciences, North Carolina Central University, Durham, North Carolina 27707, United States
- Biomanufacturing
Research Institute and Technology Enterprise (BRITE), North Carolina Central University, Durham, North Carolina 27707, United States
| | - TinChung Leung
- Department
of Biological & Biomedical Sciences, North Carolina Central University, Durham, North Carolina 27707, United States
- The
Julius L. Chambers Biomedical/Biotechnology Research Institute, North Carolina Central University, North Carolina
Research Campus, Kannapolis, North Carolina 28081, United States
| | - Xiaoyan Huang
- The
Julius L. Chambers Biomedical/Biotechnology Research Institute, North Carolina Central University, North Carolina
Research Campus, Kannapolis, North Carolina 28081, United States
| | - Jeffrey G. Shipman
- Department
of Biological & Biomedical Sciences, North Carolina Central University, Durham, North Carolina 27707, United States
| | - Alex Kovach
- RTI
International, Research
Triangle Park, North Carolina 27704, United States
| | - Vijay Sivaraman
- Department
of Biological & Biomedical Sciences, North Carolina Central University, Durham, North Carolina 27707, United States
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3
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Shipman JG, Onyenwoke RU, Sivaraman V. Vaping-Dependent Pulmonary Inflammation Is Ca 2+ Mediated and Potentially Sex Specific. Int J Mol Sci 2024; 25:1785. [PMID: 38339063 PMCID: PMC10855597 DOI: 10.3390/ijms25031785] [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: 12/15/2023] [Revised: 01/23/2024] [Accepted: 01/25/2024] [Indexed: 02/12/2024] Open
Abstract
Here we use the SCIREQ InExpose system to simulate a biologically relevant vaping model in mice to investigate the role of calcium signaling in vape-dependent pulmonary disease as well as to investigate if there is a gender-based difference of disease. Male and female mice were vaped with JUUL Menthol (3% nicotine) using the SCIREQ InExpose system for 2 weeks. Additionally, 2-APB, a known calcium signaling inhibitor, was administered as a prophylactic for lung disease and damage caused by vaping. After 2 weeks, mice were exposed to lipopolysaccharide (LPS) to mimic a bacterial infection. Post-infection (24 h), mice were sacrificed, and bronchoalveolar lavage fluid (BALF) and lungs were taken. Vaping primed the lungs for worsened disease burden after microbial challenge (LPS) for both males and females, though females presented increased neutrophilia and inflammatory cytokines post-vape compared to males, which was assessed by flow cytometry, and cytokine and histopathological analysis. This increased inflammatory burden was controlled by calcium signaling inhibition, suggesting that calcium dysregulation may play a role in lung injury caused by vaping in a gender-dependent manner.
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Affiliation(s)
- Jeffrey G. Shipman
- Department of Biological & Biomedical Sciences, North Carolina Central University, Durham, NC 27707, USA; (J.G.S.); (R.U.O.)
| | - Rob U. Onyenwoke
- Department of Biological & Biomedical Sciences, North Carolina Central University, Durham, NC 27707, USA; (J.G.S.); (R.U.O.)
- Biomanufacturing Research Institute and Technology Enterprise (BRITE), North Carolina Central University, Durham, NC 27707, USA
| | - Vijay Sivaraman
- Department of Biological & Biomedical Sciences, North Carolina Central University, Durham, NC 27707, USA; (J.G.S.); (R.U.O.)
- The Julius L. Chambers Biomedical/Biotechnology Research Institute, North Carolina Central University, Durham, NC 27707, USA
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4
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Wan X, Chen L, Zhu Z, Luo P, Hang D, Su J, Tao R, Zhou J, Fan X. Association of Serum Calcium with the Risk of Chronic Obstructive Pulmonary Disease: A Prospective Study from UK Biobank. Nutrients 2023; 15:3439. [PMID: 37571375 PMCID: PMC10421293 DOI: 10.3390/nu15153439] [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: 07/05/2023] [Revised: 07/24/2023] [Accepted: 08/02/2023] [Indexed: 08/13/2023] Open
Abstract
BACKGROUND Although intracellular calcium had been demonstrated to involve in the pathogenesis of chronic obstructive pulmonary disease (COPD), the association between serum calcium and COPD risk remains unclear. METHODS We included 386,844 participants with serum calcium measurements and without airway obstruction at the baseline from UK Biobank. The restricted cubic splines were used to assess the dose-response relationship. Multivariable cox regression models were used to estimate hazard ratios (HRs) and 95% confidence intervals (CIs) for the associations of albumin-corrected calcium concentrations with the risk of COPD incidence and mortality. RESULTS During a median of 12.3 years of follow-up, 10,582 incident COPD cases were documented. A linear positive association was observed between serum calcium concentrations and the risk of COPD incidence. Compared to participants with normal serum calcium (2.19-2.56 mmol/L), a 14% higher risk of COPD was observed in hypercalcemic participants (≥2.56 mmol/L, HR = 1.14; 95% CI: 1.02-1.27). No significant effect modifications were observed in stratified variables. In survival analysis, 215 COPD-specific deaths were documented after a median survival time of 3.8 years. Compared to participants with normal serum calcium, hypercalcemic participants had a 109% (HR = 2.09, 95% CI: 1.15-3.81) increased risk for COPD-specific mortality. CONCLUSION Our study indicated that hypercalcemia was associated with an elevated risk of COPD incidence and mortality in the European population, and suggested that serum calcium may have a potential impact on the progression of COPD.
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Affiliation(s)
- Xinglin Wan
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing 211166, China; (X.W.); (D.H.); (R.T.)
| | - Lulu Chen
- Department of Non-Communicable Chronic Disease Control, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China; (L.C.); (Z.Z.); (P.L.); (J.S.)
| | - Zheng Zhu
- Department of Non-Communicable Chronic Disease Control, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China; (L.C.); (Z.Z.); (P.L.); (J.S.)
| | - Pengfei Luo
- Department of Non-Communicable Chronic Disease Control, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China; (L.C.); (Z.Z.); (P.L.); (J.S.)
| | - Dong Hang
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing 211166, China; (X.W.); (D.H.); (R.T.)
| | - Jian Su
- Department of Non-Communicable Chronic Disease Control, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China; (L.C.); (Z.Z.); (P.L.); (J.S.)
| | - Ran Tao
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing 211166, China; (X.W.); (D.H.); (R.T.)
- Department of Non-Communicable Chronic Disease Control, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China; (L.C.); (Z.Z.); (P.L.); (J.S.)
| | - Jinyi Zhou
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing 211166, China; (X.W.); (D.H.); (R.T.)
- Department of Non-Communicable Chronic Disease Control, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China; (L.C.); (Z.Z.); (P.L.); (J.S.)
| | - Xikang Fan
- Department of Non-Communicable Chronic Disease Control, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China; (L.C.); (Z.Z.); (P.L.); (J.S.)
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5
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Onyenwoke RU, Leung T, Huang X, Parker D, Shipman JG, Alhadyan SK, Sivaraman V. An assessment of vaping-induced inflammation and toxicity: A feasibility study using a 2-stage zebrafish and mouse platform. Food Chem Toxicol 2022; 163:112923. [PMID: 35318090 PMCID: PMC9018621 DOI: 10.1016/j.fct.2022.112923] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 03/03/2022] [Accepted: 03/13/2022] [Indexed: 11/29/2022]
Abstract
It is currently understood that tobacco smoking is a major cause of pulmonary disease due to pulmonary/lung inflammation. However, due to a highly dynamic market place and an abundance of diverse products, less is known about the effects of e-cigarette (E-cig) use on the lung. In addition, varieties of E-cig liquids (e-liquids), which deliver nicotine and numerous flavor chemicals into the lungs, now number in the 1000s. Thus, a critical need exists for safety evaluations of these E-cig products. Herein, we employed a "2-stage in vivo screening platform" (zebrafish to mouse) to assess the safety profiles of e-liquids. Using the zebrafish, we collected embryo survival data after e-liquid exposure as well as neutrophil migration data, a key hallmark for a pro-inflammatory response. Our data indicate that certain e-liquids induce an inflammatory response in our zebrafish model and that e-liquid exposure alone results in pro-inflammatory lung responses in our C57BL/6J model, data collected from lung staining and ELISA analysis, respectively, in the mouse. Thus, our platform can be used as an initial assessment to ascertain the safety profiles of e-liquid using acute inflammatory responses (zebrafish, Stage 1) as our initial metric followed by chronic studies (C57BL/6J, Stage 2).
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Affiliation(s)
- Rob U Onyenwoke
- Biomanufacturing Research Institute and Technology Enterprise (BRITE), North Carolina Central University, Durham, NC, 27707, USA; Department of Pharmaceutical Sciences, North Carolina Central University, Durham, NC, 27707, USA
| | - TinChung Leung
- The Julius L. Chambers Biomedical/Biotechnology Research Institute, North Carolina Central University, North Carolina Research Campus, Kannapolis, NC, 28081, USA; Department of Biological & Biomedical Sciences, North Carolina Central University, Durham, NC, 27707, USA
| | - Xiaoyan Huang
- The Julius L. Chambers Biomedical/Biotechnology Research Institute, North Carolina Central University, North Carolina Research Campus, Kannapolis, NC, 28081, USA
| | - De'Jana Parker
- Department of Biological & Biomedical Sciences, North Carolina Central University, Durham, NC, 27707, USA
| | - Jeffrey G Shipman
- Department of Biological & Biomedical Sciences, North Carolina Central University, Durham, NC, 27707, USA
| | - Shatha K Alhadyan
- Department of Pharmaceutical Sciences, North Carolina Central University, Durham, NC, 27707, USA
| | - Vijay Sivaraman
- Department of Biological & Biomedical Sciences, North Carolina Central University, Durham, NC, 27707, USA.
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6
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Shipman JG, Onyenwoke RU, Sivaraman V. Calcium-Dependent Pulmonary Inflammation and Pharmacological Interventions and Mediators. BIOLOGY 2021; 10:1053. [PMID: 34681152 PMCID: PMC8533358 DOI: 10.3390/biology10101053] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 10/11/2021] [Accepted: 10/14/2021] [Indexed: 12/17/2022]
Abstract
Pulmonary diseases present a significant burden worldwide and lead to severe morbidity and mortality. Lung inflammation caused by interactions with either viruses, bacteria or fungi is a prominent characteristic of many pulmonary diseases. Tobacco smoke and E-cig use ("vaping") are considered major risk factors in the development of pulmonary disease as well as worsening disease prognosis. However, at present, relatively little is known about the mechanistic actions by which smoking and vaping may worsen the disease. One theory suggests that long-term vaping leads to Ca2+ signaling dysregulation. Ca2+ is an important secondary messenger in signal transduction. Cellular Ca2+ concentrations are mediated by a complex series of pumps, channels, transporters and exchangers that are responsible for triggering various intracellular processes such as cell death, proliferation and secretion. In this review, we provide a detailed understating of the complex series of components that mediate Ca2+ signaling and how their dysfunction may result in pulmonary disease. Furthermore, we summarize the recent literature investigating the negative effects of smoking and vaping on pulmonary disease, cell toxicity and Ca2+ signaling. Finally, we summarize Ca2+-mediated pharmacological interventions that could potentially lead to novel treatments for pulmonary diseases.
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Affiliation(s)
- Jeffrey G. Shipman
- Department of Biological and Biomedical Sciences, College of Health and Sciences, North Carolina Central University, Durham, NC 27707, USA;
| | - Rob U. Onyenwoke
- Department of Pharmaceutical Sciences, North Carolina Central University, Durham, NC 27707, USA;
- Biomanufacturing Research Institute and Technology Enterprise (BRITE), North Carolina Central University, Durham, NC 27707, USA
| | - Vijay Sivaraman
- Department of Biological and Biomedical Sciences, College of Health and Sciences, North Carolina Central University, Durham, NC 27707, USA;
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7
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Zhang R, Jones MM, Parker D, Dornsife RE, Wymer N, Onyenwoke RU, Sivaraman V. Acute vaping exacerbates microbial pneumonia due to calcium (Ca2+) dysregulation. PLoS One 2021; 16:e0256166. [PMID: 34383849 PMCID: PMC8360547 DOI: 10.1371/journal.pone.0256166] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Accepted: 07/30/2021] [Indexed: 11/19/2022] Open
Abstract
As electronic cigarette (E-cig) use, also known as "vaping", has rapidly increased in popularity, data regarding potential pathologic effects are recently emerging. Recent associations between vaping and lung pathology have led to an increased need to scrutinize E-cigs for adverse health impacts. Our previous work (and others) has associated vaping with Ca2+-dependent cytotoxicity in cultured human airway epithelial cells. Herein, we develop a vaped e-liquid pulmonary exposure mouse model to evaluate vaping effects in vivo. Using this model, we demonstrate lung pathology through the use of preclinical measures, that is, the lung wet: dry ratio and lung histology/H&E staining. Further, we demonstrate that acute vaping increases macrophage chemotaxis, which was ascertained using flow cytometry-based techniques, and inflammatory cytokine production, via Luminex analysis, through a Ca2+-dependent mechanism. This increase in macrophage activation appears to exacerbate pulmonary pathology resulting from microbial infection. Importantly, modulating Ca2+ signaling may present a therapeutic direction for treatment against vaping-associated pulmonary inflammation.
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Affiliation(s)
- Rui Zhang
- Department of Respiratory and Critical Care Medicine, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, People’s Republic of China
- Biomanufacturing Research Institute and Technology Enterprise (BRITE), North Carolina Central University, Durham, North Carolina, United States of America
| | - Myles M. Jones
- Department of Biological and Biomedical Sciences, North Carolina Central University, Durham, North Carolina, United States of America
| | - De’Jana Parker
- Department of Biological and Biomedical Sciences, North Carolina Central University, Durham, North Carolina, United States of America
| | - Ronna E. Dornsife
- Biomanufacturing Research Institute and Technology Enterprise (BRITE), North Carolina Central University, Durham, North Carolina, United States of America
| | - Nathan Wymer
- Department of Chemistry and Biochemistry, North Carolina Central University, Durham, North Carolina, United States of America
| | - Rob U. Onyenwoke
- Biomanufacturing Research Institute and Technology Enterprise (BRITE), North Carolina Central University, Durham, North Carolina, United States of America
- Department of Pharmaceutical Sciences, North Carolina Central University, Durham, North Carolina, United States of America
| | - Vijay Sivaraman
- Department of Biological and Biomedical Sciences, North Carolina Central University, Durham, North Carolina, United States of America
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8
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Sivaraman V, Onyenwoke RU. Calcium Signaling Derangement and Disease Development and Progression. BIOLOGY 2021; 10:291. [PMID: 33918192 PMCID: PMC8066495 DOI: 10.3390/biology10040291] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 03/31/2021] [Indexed: 02/06/2023]
Abstract
The importance of intracellular calcium (Ca2+) in regulating integral biological functions such as cell division, cell motility, autophagy, apoptosis and gene transcription through its capacity as a ubiquitous second messenger is clear [...].
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Affiliation(s)
- Vijay Sivaraman
- Department of Biological and Biomedical Sciences, College of Health and Sciences, North Carolina Central University, Durham, NC 27707, USA
| | - Rob U. Onyenwoke
- Biomanufacturing Research Institute and Technology Enterprise (BRITE), North Carolina Central University, Room 2029, 1801 Fayetteville St., Durham, NC 27707, USA
- Department of Pharmaceutical Sciences, North Carolina Central University, Durham, NC 27707, USA
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9
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Sagar S, Kapoor H, Chaudhary N, Roy SS. Cellular and mitochondrial calcium communication in obstructive lung disorders. Mitochondrion 2021; 58:184-199. [PMID: 33766748 DOI: 10.1016/j.mito.2021.03.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 03/03/2021] [Accepted: 03/15/2021] [Indexed: 12/14/2022]
Abstract
Calcium (Ca2+) signalling is well known to dictate cellular functioning and fate. In recent years, the accumulation of Ca2+ in the mitochondria has emerged as an important factor in Chronic Respiratory Diseases (CRD) such as Asthma and Chronic Obstructive Pulmonary Disease (COPD). Various reports underline an aberrant increase in the intracellular Ca2+, leading to mitochondrial ROS generation, and further activation of the apoptotic pathway in these diseases. Mitochondria contribute to Ca2+ buffering which in turn regulates mitochondrial metabolism and ATP production. Disruption of this Ca2+ balance leads to impaired cellular processes like apoptosis or necrosis and thus contributes to the pathophysiology of airway diseases. This review highlights the key role of cytoplasmic and mitochondrial Ca2+ signalling in regulating CRD, such as asthma and COPD. A better understanding of the dysregulation of mitochondrial Ca2+ homeostasis in these diseases could provide cues for the development of advanced therapeutic interventions in these diseases.
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Affiliation(s)
- Shakti Sagar
- CSIR-Institute of Genomics & Integrative Biology, New Delhi, India; Academy of Scientific & Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Himanshi Kapoor
- CSIR-Institute of Genomics & Integrative Biology, New Delhi, India
| | - Nisha Chaudhary
- Multidisciplinary Center for Advanced Research and Studies, Jamia Millia Islamia, New Delhi, India
| | - Soumya Sinha Roy
- CSIR-Institute of Genomics & Integrative Biology, New Delhi, India; Academy of Scientific & Innovative Research (AcSIR), Ghaziabad 201002, India.
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10
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Martin SL, Reihill JA. Promotion of a Protease-Antiprotease Imbalance in the Airways through Chronic Vaping. Am J Respir Crit Care Med 2020; 200:1337-1339. [PMID: 31496259 PMCID: PMC6884052 DOI: 10.1164/rccm.201908-1605ed] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- S Lorraine Martin
- School of PharmacyQueen's University BelfastBelfast, Northern Ireland
| | - James A Reihill
- School of PharmacyQueen's University BelfastBelfast, Northern Ireland
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11
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Arimilli S, Makena P, Prasad GL. Combustible Cigarette and Smokeless Tobacco Product Preparations Differentially Regulate Intracellular Calcium Mobilization in HL60 Cells. Inflammation 2020; 42:1641-1651. [PMID: 31190105 PMCID: PMC6719334 DOI: 10.1007/s10753-019-01025-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Changes in the level of intracellular calcium ([Ca2+]i) are central to leukocyte signaling and immune response. Although evidence suggests that cigarette smoking affects inflammatory response via an increase in intracellular calcium, it remains unclear if the use of smokeless tobacco (e.g., moist snuff) elicits a similar response. In this study, we evaluated the effects of tobacco product preparations (TPPs), including total particulate matter (TPM) from 3R4F reference cigarettes, smokeless tobacco extract (STE) from 2S3 reference moist snuff, and nicotine alone on Ca2+ mobilization in HL60 cells. Treatment with TPM, but not STE or nicotine alone, significantly increased [Ca2+]i in a concentration-dependent manner in HL60 cells. Moreover, TPM-induced [Ca2+]i increase was not related to extracellular Ca2+ and did not require the activation of the IP3 pathway nor involved the transient receptor potential (TRP) channels. Our findings indicate that, in cells having either intact or depleted endoplasmic reticulum (ER) Ca2+ stores, TPM-mediated [Ca2+]i increase involves cytosolic Ca2+ pools other than thapsigargin-sensitive ER Ca2+ stores. These results, for the first time, demonstrate that TPM triggers [Ca2+]i increases, while significantly higher nicotine equivalent doses of STE or nicotine alone, did not affect [Ca2+]i under the experimental conditions. In summary, our study suggests that in contrast with STE or nicotine preparations, TPM activates Ca2+ signaling pathways in HL60 cells. The differential effect of combustible and non-combustible TPPs on Ca2+ mobilization could be a useful in vitro endpoint for tobacco product evaluation.
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Affiliation(s)
- S Arimilli
- Eurofins Lancaster Laboratories PSS, Winston-Salem, NC, 27105, USA
| | - P Makena
- RAI Services Company, Winston-Salem, NC, 27105, USA.
| | - G L Prasad
- RAI Services Company, Winston-Salem, NC, 27105, USA
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12
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Patel W, Moore PJ, Sassano MF, Lopes-Pacheco M, Aleksandrov AA, Amaral MD, Tarran R, Gray MA. Increases in cytosolic Ca 2+ induce dynamin- and calcineurin-dependent internalisation of CFTR. Cell Mol Life Sci 2019; 76:977-994. [PMID: 30547226 PMCID: PMC6394554 DOI: 10.1007/s00018-018-2989-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 11/28/2018] [Accepted: 12/04/2018] [Indexed: 12/12/2022]
Abstract
The cystic fibrosis transmembrane conductance regulator (CFTR) is a cAMP-regulated, apical anion channel that regulates ion and fluid transport in many epithelia including the airways. We have previously shown that cigarette smoke (CS) exposure to airway epithelia causes a reduction in plasma membrane CFTR expression which correlated with a decrease in airway surface hydration. The effect of CS on CFTR was dependent on an increase in cytosolic Ca2+. However, the underlying mechanism for this Ca2+-dependent, internalisation of CFTR is unknown. To gain a better understanding of the effect of Ca2+ on CFTR, we performed whole cell current recordings to study the temporal effect of raising cytosolic Ca2+ on CFTR function. We show that an increase in cytosolic Ca2+ induced a time-dependent reduction in whole cell CFTR conductance, which was paralleled by a loss of cell surface CFTR expression, as measured by confocal and widefield fluorescence microscopy. The decrease in CFTR conductance and cell surface expression were both dynamin-dependent. Single channel reconstitution studies showed that raising cytosolic Ca2+ per se had no direct effect on CFTR. In fact, the loss of CFTR plasma membrane activity correlated with activation of calcineurin, a Ca2+-dependent phosphatase, suggesting that dephosphorylation of CFTR was linked to the loss of surface expression. In support of this, the calcineurin inhibitor, cyclosporin A, prevented the Ca2+-induced decrease in cell surface CFTR. These results provide a hitherto unrecognised role for cytosolic Ca2+ in modulating the residency of CFTR at the plasma membrane through a dynamin- and calcineurin-dependent mechanism.
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Affiliation(s)
- Waseema Patel
- Institute for Cell and Molecular Biosciences, Newcastle University, Newcastle upon Tyne, NE2 4HH, UK
- Marsico Lung Institute, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Patrick J Moore
- Marsico Lung Institute, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - M Flori Sassano
- Marsico Lung Institute, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Miquéias Lopes-Pacheco
- Faculty of Sciences, BioISI-Biosystems and Integrative Sciences Institute, University of Lisboa, Lisbon, Portugal
| | - Andrei A Aleksandrov
- Department of Biochemistry and Biophysics, Cystic Fibrosis Research and Treatment Center, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Margarida D Amaral
- Faculty of Sciences, BioISI-Biosystems and Integrative Sciences Institute, University of Lisboa, Lisbon, Portugal
| | - Robert Tarran
- Marsico Lung Institute, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Department of Cell Biology and Physiology, Cystic Fibrosis Research and Treatment Center, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Michael A Gray
- Institute for Cell and Molecular Biosciences, Newcastle University, Newcastle upon Tyne, NE2 4HH, UK.
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