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Ito T, Ichikawa T, Yamada M, Hashimoto Y, Fujino N, Numakura T, Sasaki Y, Suzuki A, Takita K, Sano H, Kyogoku Y, Saito T, Koarai A, Tamada T, Sugiura H. CYP27A1-27-hydroxycholesterol axis in the respiratory system contributes to house dust mite-induced allergic airway inflammation. Allergol Int 2024; 73:151-163. [PMID: 37607853 DOI: 10.1016/j.alit.2023.08.005] [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: 04/09/2023] [Revised: 07/27/2023] [Accepted: 07/31/2023] [Indexed: 08/24/2023] Open
Abstract
BACKGROUND 27-Hydroxycholesterol (27-HC) derived from sterol 27-hydroxylase (CYP27A1) has pro-inflammatory biological activity and is associated with oxidative stress and chronic inflammation in COPD. However, the role of regulation of CYP27A1- 27-HC axis in asthma is unclear. This study aimed to elucidate the contribution of the axis to the pathophysiology of asthma. METHODS House dust mite (HDM) extract was intranasally administered to C57BL/6 mice and the expression of CYP27A1 in the airways was analyzed by immunostaining. The effect of pre-treatment with PBS or CYP27A1 inhibitors on the cell fraction in the bronchoalveolar lavage fluid (BALF) was analyzed in the murine model. In vitro, BEAS-2B cells were treated with HDM and the levels of CYP27A1 expression were examined. Furthermore, the effect of 27-HC on the expressions of E-cadherin and ZO-1 in the cells was analyzed. The amounts of RANTES and eotaxin from the 27-HC-treated cells were analyzed by ELISA. RESULTS The administration of HDM increased the expression of CYP27A1 in the airways of mice as well as the number of eosinophils in the BALF. CYP27A1 inhibitors ameliorated the HDM-induced increase in the number of eosinophils in the BALF. Treatment with HDM increased the expression of CYP27A1 in BEAS-2B cells. The administration of 27-HC to BEAS-2B cells suppressed the expression of E-cadherin and ZO-1, and augmented the production of RANTES and eotaxin. CONCLUSIONS The results of this study suggest that aeroallergen could enhance the induction of CYP27A1, leading to allergic airway inflammation and disruption of the airway epithelial tight junction through 27-HC production.
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Affiliation(s)
- Tatsunori Ito
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Tomohiro Ichikawa
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan.
| | - Mitsuhiro Yamada
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Yuichiro Hashimoto
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Naoya Fujino
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Tadahisa Numakura
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Yusaku Sasaki
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Ayumi Suzuki
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Katsuya Takita
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Hirohito Sano
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Yorihiko Kyogoku
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Takuya Saito
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Akira Koarai
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Tsutomu Tamada
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Hisatoshi Sugiura
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
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Chaudhari S, Pham GS, Brooks CD, Dinh VQ, Young-Stubbs CM, Shimoura CG, Mathis KW. Should Renal Inflammation Be Targeted While Treating Hypertension? Front Physiol 2022; 13:886779. [PMID: 35770194 PMCID: PMC9236225 DOI: 10.3389/fphys.2022.886779] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 05/17/2022] [Indexed: 11/28/2022] Open
Abstract
Despite extensive research and a plethora of therapeutic options, hypertension continues to be a global burden. Understanding of the pathological roles of known and underexplored cellular and molecular pathways in the development and maintenance of hypertension is critical to advance the field. Immune system overactivation and inflammation in the kidneys are proposed alternative mechanisms of hypertension, and resistant hypertension. Consideration of the pathophysiology of hypertension in chronic inflammatory conditions such as autoimmune diseases, in which patients present with autoimmune-mediated kidney inflammation as well as hypertension, may reveal possible contributors and novel therapeutic targets. In this review, we 1) summarize current therapies used to control blood pressure and their known effects on inflammation; 2) provide evidence on the need to target renal inflammation, specifically, and especially when first-line and combinatory treatment efforts fail; and 3) discuss the efficacy of therapies used to treat autoimmune diseases with a hypertension/renal component. We aim to elucidate the potential of targeting renal inflammation in certain subsets of patients resistant to current therapies.
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Affiliation(s)
| | | | | | | | | | | | - Keisa W. Mathis
- Department of Physiology and Anatomy, University of North Texas Health Science Center, Fort Worth, TX, United States
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3
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Erdogmus S, Concepcion AR, Yamashita M, Sidhu I, Tao AY, Li W, Rocha PP, Huang B, Garippa R, Lee B, Lee A, Hell JW, Lewis RS, Prakriya M, Feske S. Cavβ1 regulates T cell expansion and apoptosis independently of voltage-gated Ca 2+ channel function. Nat Commun 2022; 13:2033. [PMID: 35440113 PMCID: PMC9018955 DOI: 10.1038/s41467-022-29725-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 03/22/2022] [Indexed: 12/11/2022] Open
Abstract
TCR stimulation triggers Ca2+ signals that are critical for T cell function and immunity. Several pore-forming α and auxiliary β subunits of voltage-gated Ca2+ channels (VGCC) were reported in T cells, but their mechanism of activation remains elusive and their contribution to Ca2+ signaling in T cells is controversial. We here identify CaVβ1, encoded by Cacnb1, as a regulator of T cell function. Cacnb1 deletion enhances apoptosis and impairs the clonal expansion of T cells after lymphocytic choriomeningitis virus (LCMV) infection. By contrast, Cacnb1 is dispensable for T cell proliferation, cytokine production and Ca2+ signaling. Using patch clamp electrophysiology and Ca2+ recordings, we are unable to detect voltage-gated Ca2+ currents or Ca2+ influx in human and mouse T cells upon depolarization with or without prior TCR stimulation. mRNAs of several VGCC α1 subunits are detectable in human (CaV3.3, CaV3.2) and mouse (CaV2.1) T cells, but they lack transcription of many 5' exons, likely resulting in N-terminally truncated and non-functional proteins. Our findings demonstrate that although CaVβ1 regulates T cell function, these effects are independent of VGCC channel activity.
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Affiliation(s)
- Serap Erdogmus
- Department of Pathology, NYU Grossman School of Medicine, New York, NY, USA
| | - Axel R Concepcion
- Department of Pathology, NYU Grossman School of Medicine, New York, NY, USA
| | - Megumi Yamashita
- Department of Pharmacology, Northwestern University, Chicago, IL, USA
| | - Ikjot Sidhu
- Department of Pathology, NYU Grossman School of Medicine, New York, NY, USA
| | - Anthony Y Tao
- Department of Pathology, NYU Grossman School of Medicine, New York, NY, USA
| | - Wenyi Li
- Department of Pathology, NYU Grossman School of Medicine, New York, NY, USA
| | - Pedro P Rocha
- Unit on Genome Structure and Regulation, National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA
- National Cancer Institute, NIH, Bethesda, MD, USA
| | - Bonnie Huang
- National Institute of Allergy and Infectious Disease, Bethesda, MD, USA
- National Human Genome Research Institute, Bethesda, MD, USA
| | - Ralph Garippa
- Department of Cancer Biology & Genetics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Boram Lee
- Department of Pharmacology, University of California, Davis, CA, USA
| | - Amy Lee
- Department of Neuroscience, University of Texas-Austin, Austin, TX, USA
| | - Johannes W Hell
- Department of Pharmacology, University of California, Davis, CA, USA
| | - Richard S Lewis
- Department of Molecular and Cellular Physiology, Stanford University, Stanford, CA, USA
| | - Murali Prakriya
- Department of Pharmacology, Northwestern University, Chicago, IL, USA.
| | - Stefan Feske
- Department of Pathology, NYU Grossman School of Medicine, New York, NY, USA.
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Giang N, Mars M, Moreau M, Mejia JE, Bouchaud G, Magnan A, Michelet M, Ronsin B, Murphy GG, Striessnig J, Guéry J, Pelletier L, Savignac M. Separation of the Ca V 1.2-Ca V 1.3 calcium channel duo prevents type 2 allergic airway inflammation. Allergy 2022; 77:525-539. [PMID: 34181765 DOI: 10.1111/all.14993] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 04/16/2021] [Accepted: 05/16/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND Voltage-gated calcium (Cav 1) channels contribute to T-lymphocyte activation. Cav 1.2 and Cav 1.3 channels are expressed in Th2 cells but their respective roles are unknown, which is investigated herein. METHODS We generated mice deleted for Cav 1.2 in T cells or Cav 1.3 and analyzed TCR-driven signaling. In this line, we developed original fast calcium imaging to measure early elementary calcium events (ECE). We also tested the impact of Cav 1.2 or Cav 1.3 deletion in models of type 2 airway inflammation. Finally, we checked whether the expression of both Cav 1.2 and Cav 1.3 in T cells from asthmatic children correlates with Th2-cytokine expression. RESULTS We demonstrated non-redundant and synergistic functions of Cav 1.2 and Cav 1.3 in Th2 cells. Indeed, the deficiency of only one channel in Th2 cells triggers TCR-driven hyporesponsiveness with weakened tyrosine phosphorylation profile, a strong decrease in initial ECE and subsequent reduction in the global calcium response. Moreover, Cav 1.3 has a particular role in calcium homeostasis. In accordance with the singular roles of Cav 1.2 and Cav 1.3 in Th2 cells, deficiency in either one of these channels was sufficient to inhibit cardinal features of type 2 airway inflammation. Furthermore, Cav 1.2 and Cav 1.3 must be co-expressed within the same CD4+ T cell to trigger allergic airway inflammation. Accordingly with the concerted roles of Cav 1.2 and Cav 1.3, the expression of both channels by activated CD4+ T cells from asthmatic children was associated with increased Th2-cytokine transcription. CONCLUSIONS Thus, Cav 1.2 and Cav 1.3 act as a duo, and targeting only one of these channels would be efficient in allergy treatment.
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Affiliation(s)
- Nicolas Giang
- Toulouse Institute for Infectious and Inflammatory Diseases (Infinity) INSERM UMR1291 CNRS UMR5051Université Paul Sabatier Toulouse III Toulouse France
| | - Marion Mars
- Toulouse Institute for Infectious and Inflammatory Diseases (Infinity) INSERM UMR1291 CNRS UMR5051Université Paul Sabatier Toulouse III Toulouse France
| | - Marc Moreau
- Centre de Biologie du Développement Centre de Biologie Intégrative Université de ToulouseCNRSUniversité Paul Sabatier III Toulouse France
| | - Jose E. Mejia
- Toulouse Institute for Infectious and Inflammatory Diseases (Infinity) INSERM UMR1291 CNRS UMR5051Université Paul Sabatier Toulouse III Toulouse France
| | | | - Antoine Magnan
- Institut du Thorax INSERM CNRSUniversité de Nantes Nantes France
- Service de Pneumologie Centre Hospitalier Universitaire de Nantes Nantes France
| | - Marine Michelet
- Toulouse Institute for Infectious and Inflammatory Diseases (Infinity) INSERM UMR1291 CNRS UMR5051Université Paul Sabatier Toulouse III Toulouse France
- Pediatric Pneumology and Allergology Unit Hôpital des EnfantsCentre Hospitalier Universitaire Toulouse Toulouse France
- Unité de Recherche Clinique Pédiatrique/module plurithématique pédiatrique du CIC Toulouse France
| | - Brice Ronsin
- Centre de Biologie du Développement Centre de Biologie Intégrative Université de ToulouseCNRSUniversité Paul Sabatier III Toulouse France
| | - Geoffrey G. Murphy
- Molecular and Behavioral Neuroscience Institute University of Michigan Ann Arbor MI USA
| | - Joerg Striessnig
- Department of Pharmacology and Toxicology Institute of Pharmacy Center for Molecular Biosciences University of Innsbruck Innsbruck Austria
| | - Jean‐Charles Guéry
- Toulouse Institute for Infectious and Inflammatory Diseases (Infinity) INSERM UMR1291 CNRS UMR5051Université Paul Sabatier Toulouse III Toulouse France
| | - Lucette Pelletier
- Toulouse Institute for Infectious and Inflammatory Diseases (Infinity) INSERM UMR1291 CNRS UMR5051Université Paul Sabatier Toulouse III Toulouse France
| | - Magali Savignac
- Toulouse Institute for Infectious and Inflammatory Diseases (Infinity) INSERM UMR1291 CNRS UMR5051Université Paul Sabatier Toulouse III Toulouse France
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Ca v1.4 calcium channels control cytokine production by human peripheral T H17 cells and psoriatic skin-infiltrating T cells. J Allergy Clin Immunol 2021; 149:1348-1357. [PMID: 34653514 DOI: 10.1016/j.jaci.2021.09.030] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 09/03/2021] [Accepted: 09/17/2021] [Indexed: 01/16/2023]
Abstract
BACKGROUND Type-17 inflammation characterizes psoriasis, a chronic skin disease. Because several inflammatory cytokines contribute to psoriasis pathogenesis, inhibiting the simultaneous production of these cytokines in TH17 cells may be beneficial in psoriasis. We found that Cav1.4, encoded by CACNA1F, was the only Cav1 calcium channel expressed in TH17 cells. OBJECTIVE We sought to investigate the role of Cav1.4 expression in early TH17-activation events and effector functions, as well as its association with TH17 signature genes in lesional psoriatic (LP) skins. METHODS Transcriptional gene signatures associated with CACNA1F expression were examined in LP skins by RT-PCR and in situ hybridization. Cav1 inhibitor and/or shRNA lentivectors were used to assess the contribution of Cav1.4 in TH17 activation and effector functions in a 3-dimensional skin reconstruction model. RESULTS CACNA1F expression correlated with inflammatory cytokine expression that characterizes LP skins and was preferentially associated with RORC expression in CD4+ and CD4- cells from LP biopsies. Nicardipine, a Cav1 channel antagonist, markedly reduced inflammatory cytokine production by TH17 cells from blood or LP skin. This was associated with decreased TCR-induced early calcium events at cell membrane and proximal signaling events. The knockdown of Cav1.4 in TH17 cells impaired cytokine production. Finally, Cav1 inhibition reduced the expression of the keratinocyte genes characteristic of TH17-mediated psoriasis inflammation in human skin equivalents. CONCLUSIONS Cav1.4 channels promote TH17-cell functions both at the periphery and in inflammatory psoriatic skin.
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6
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Tsuzuki R, To M, Yamawaki S, Kono Y, To Y. Inhibitory effect of calcium channel blockers on the deterioration of lung function in adult-onset asthma. Ann Allergy Asthma Immunol 2021; 126:731-733. [PMID: 33705916 DOI: 10.1016/j.anai.2021.02.029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 02/25/2021] [Accepted: 02/27/2021] [Indexed: 11/25/2022]
Affiliation(s)
- Ryuta Tsuzuki
- Department of Allergy and Respiratory Medicine, The Fraternity Memorial Hospital, Tokyo, Japan
| | - Masako To
- Department of Allergy and Respiratory Medicine, The Fraternity Memorial Hospital, Tokyo, Japan
| | - Satoshi Yamawaki
- Department of Allergy and Respiratory Medicine, The Fraternity Memorial Hospital, Tokyo, Japan
| | - Yuta Kono
- Department of Allergy and Respiratory Medicine, The Fraternity Memorial Hospital, Tokyo, Japan; Department of Respiratory Medicine, Tokyo Medical University, Tokyo, Japan
| | - Yasuo To
- Department of Allergy and Respiratory Medicine, The Fraternity Memorial Hospital, Tokyo, Japan.
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Pelletier L, Moreau M. Ca v1 channels is also a story of non excitable cells: Application to calcium signalling in two different non related models. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2021; 1868:118996. [PMID: 33675852 DOI: 10.1016/j.bbamcr.2021.118996] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 02/22/2021] [Indexed: 12/12/2022]
Abstract
Calcium is a second messenger essential, in all cells, for most cell functions. The spatio-temporal control of changes in intracellular calcium concentration is partly due to the activation of calcium channels. Voltage-operated calcium channels are present in excitable and non-excitable cells. If the mechanism of voltage-operated calcium channels is well known in excitable cells the Ca2+ toolkit used in non-excitable cells to activate the calcium channels is less described. Herein we discuss about very similar pathways involving voltage activated Cav1 channels in two unrelated non-excitable cells; ectoderm cells undergoing neural development and effector Th2 lymphocytes responsible for parasite elimination and also allergic diseases. We will examine the way by which these channels operate and are regulated, as well as the consequences in terms of gene transcription. Finally, we will consider the questions that remain unsolved and how they might be a challenge for the future.
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Affiliation(s)
- Lucette Pelletier
- Infinity - Toulouse Institute For Infectious and Inflammatory Diseases INSERM UMR1291, CNRS UMR5051, University Toulouse III CHU Purpan, BP 3028, 31024 Toulouse CEDEX 3, France
| | - Marc Moreau
- Université Toulouse3, Centre de biologie du développement, CNRS UMR5547, 118 route de Narbonne, F31062 Toulouse Cedex 04, France.
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Pelletier L, Savignac M. Involvement of ion channels in allergy. Curr Opin Immunol 2018; 52:60-67. [PMID: 29704811 DOI: 10.1016/j.coi.2018.04.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Revised: 04/06/2018] [Accepted: 04/09/2018] [Indexed: 12/18/2022]
Abstract
Allergic asthma is a complex disease, often characterized by an inappropriate Th2 response to normally harmless allergens. Epithelial cells damaged or activated by the allergen produce IL-33, TSLP and IL-25, activating ILC2 and dendritic cells. The latter migrate into lymph nodes where they induce Th2-cell commitment. Th2 and other type 2 innate inflammatory cells trigger inflammation and airway hyper-reactivity. The toolbox consisting of the ion channels varies from one cellular type to another and depends on its activation state, offering the possibility to design novel drugs in the field of allergy. We will discuss about some channels as calcium, nonselective cation, potassium and chloride channels that appear as good candidates in allergy.
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Affiliation(s)
- Lucette Pelletier
- Center of Physiopathology Toulouse Purpan, University Paul Sabatier Toulouse III, INSERM U1043, CNRS UMR 5282, 31024 Toulouse, France.
| | - Magali Savignac
- Center of Physiopathology Toulouse Purpan, University Paul Sabatier Toulouse III, INSERM U1043, CNRS UMR 5282, 31024 Toulouse, France
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9
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Rosa N, Triffaux E, Robert V, Mars M, Klein M, Bouchaud G, Canivet A, Magnan A, Guéry JC, Pelletier L, Savignac M. The β and α2δ auxiliary subunits of voltage-gated calcium channel 1 (Ca v1) are required for T H2 lymphocyte function and acute allergic airway inflammation. J Allergy Clin Immunol 2017; 142:892-903.e8. [PMID: 29129580 DOI: 10.1016/j.jaci.2017.09.045] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Revised: 08/04/2017] [Accepted: 09/08/2017] [Indexed: 10/18/2022]
Abstract
BACKGROUND T lymphocytes express not only cell membrane ORAI calcium release-activated calcium modulator 1 but also voltage-gated calcium channel (Cav) 1 channels. In excitable cells these channels are composed of the ion-forming pore α1 and auxiliary subunits (β and α2δ) needed for proper trafficking and activation of the channel. Previously, we disclosed the role of Cav1.2 α1 in mouse and human TH2 but not TH1 cell functions and showed that knocking down Cav1 α1 prevents experimental asthma. OBJECTIVE We investigated the role of β and α2δ auxiliary subunits on Cav1 α1 function in TH2 lymphocytes and on the development of acute allergic airway inflammation. METHODS We used Cavβ antisense oligonucleotides to knock down Cavβ and gabapentin, a drug that binds to and inhibits α2δ1 and α2δ2, to test their effects on TH2 functions and their capacity to reduce allergic airway inflammation. RESULTS Mouse and human TH2 cells express mainly Cavβ1, β3, and α2δ2 subunits. Cavβ antisense reduces T-cell receptor-driven calcium responses and cytokine production by mouse and human TH2 cells with no effect on TH1 cells. Cavβ is mainly involved in restraining Cav1.2 α1 degradation through the proteasome because a proteasome inhibitor partially restores the α1 protein level. Gabapentin impairs the T-cell receptor-driven calcium response and cytokine production associated with the loss of α2δ2 protein in TH2 cells. CONCLUSIONS These results stress the role of Cavβ and α2δ2 auxiliary subunits in the stability and activation of Cav1.2 channels in TH2 lymphocytes both in vitro and in vivo, as demonstrated by the beneficial effect of Cavβ antisense and gabapentin in allergic airway inflammation.
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Affiliation(s)
- Nicolas Rosa
- Center of Physiopathology Toulouse Purpan, University Paul Sabatier Toulouse III, INSERM U1043, CNRS UMR 5282, Toulouse, France
| | - Emily Triffaux
- Center of Physiopathology Toulouse Purpan, University Paul Sabatier Toulouse III, INSERM U1043, CNRS UMR 5282, Toulouse, France
| | - Virginie Robert
- Center of Physiopathology Toulouse Purpan, University Paul Sabatier Toulouse III, INSERM U1043, CNRS UMR 5282, Toulouse, France
| | - Marion Mars
- Center of Physiopathology Toulouse Purpan, University Paul Sabatier Toulouse III, INSERM U1043, CNRS UMR 5282, Toulouse, France
| | - Martin Klein
- Institut du Thorax, INSERM CNRS, UNIV Nantes, France
| | | | - Astrid Canivet
- Center of Physiopathology Toulouse Purpan, University Paul Sabatier Toulouse III, INSERM U1043, CNRS UMR 5282, Toulouse, France
| | - Antoine Magnan
- Institut du Thorax, INSERM CNRS, UNIV Nantes, France; Centre Hospitalier Universitaire de Nantes, Service de Pneumologie, Nantes, France
| | - Jean-Charles Guéry
- Center of Physiopathology Toulouse Purpan, University Paul Sabatier Toulouse III, INSERM U1043, CNRS UMR 5282, Toulouse, France
| | - Lucette Pelletier
- Center of Physiopathology Toulouse Purpan, University Paul Sabatier Toulouse III, INSERM U1043, CNRS UMR 5282, Toulouse, France.
| | - Magali Savignac
- Center of Physiopathology Toulouse Purpan, University Paul Sabatier Toulouse III, INSERM U1043, CNRS UMR 5282, Toulouse, France.
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10
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Howells PA, Aldridge KA, Parekh D, Park D, Tucker O, Dancer RCA, Gao F, Perkins GD, Thickett DR. ARDS following oesophagectomy: a comparison of two trials. BMJ Open Respir Res 2017; 4:e000207. [PMID: 29435341 PMCID: PMC5687524 DOI: 10.1136/bmjresp-2017-000207] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Revised: 08/10/2017] [Accepted: 10/04/2017] [Indexed: 01/08/2023] Open
Abstract
Introduction The Beta Agonist Lung Injury Trial-Prevention (BALTI-P) translational substudy and Vitamin D to Prevent Acute Lung Injury Following Oesophagectomy (VINDALOO) trials recruited patients undergoing oesophagectomy, 4 years apart. The acute respiratory distress syndrome (ARDS) rates were lower in the VINDALOO trial. We sought to identify changes between these two trials and identify risk factors for ARDS in oesophagectomy. Methods There were data available from 61 patients in the BALTI-P substudy and 68 from VINDALOO. Databases were available for both trials; additional data were collected. Multivariate logistic regression was used to analyse risk factors for ARDS and postoperative complications in the cohorts combined. Results Logistic regression analysis showed active smoking was associated with an increase in ARDS (OR 3.91; 95% CI 1.33 to 11.5) and dihydropyridine use (OR 5.34;95% CI 1.56 to 18.3). Hospital length of stay was longer for those who took dihydropyridines (median 29 days (IQR 17–42) vs 13 days (IQR 10–18), P=0.0007) or were diabetic (median 25 days (IQR 14–39) vs 13 (IQR 10–19), P=0.023) but not for current smokers (median in never/ex-smokers 13 (IQR 10–23) vs current smokers 15 (IQR 11–20), P=0.73). Conclusions Smoking cessation trials should be promoted. Dihydropyridine effects perioperatively require further clinical and mechanistic evaluation. Patients undergoing oesophagectomy are a useful model for studying perioperative ARDS.
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Affiliation(s)
- Phillip A Howells
- Peri-operative and critical care trials group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
| | - Kerrie A Aldridge
- Peri-operative and critical care trials group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK.,Department of Respiratory Medicine, University Hospitals Birmingham NHS Trust, Birmingham, UK
| | - Dhruv Parekh
- Peri-operative and critical care trials group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK.,Department of Respiratory Medicine, University Hospitals Birmingham NHS Trust, Birmingham, UK
| | - Daniel Park
- Department of Critical Care Medicine, Heart of England NHS Foundation Trust, Birmingham, UK
| | - Olga Tucker
- Department of Upper Gastrointestinal Surgery, Heart of England NHS Foundation Trust, Birmingham, UK
| | - Rachel C A Dancer
- Peri-operative and critical care trials group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK.,Department of Respiratory Medicine, University Hospitals Birmingham NHS Trust, Birmingham, UK
| | - Fang Gao
- Peri-operative and critical care trials group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK.,Department of Critical Care Medicine, Heart of England NHS Foundation Trust, Birmingham, UK
| | - Gavin D Perkins
- Department of Critical Care Medicine, Heart of England NHS Foundation Trust, Birmingham, UK.,Warwick Clinical Trials Unit, Warwick Medical School, University of Warwick, Birmingham, UK
| | - David R Thickett
- Peri-operative and critical care trials group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK.,Department of Respiratory Medicine, University Hospitals Birmingham NHS Trust, Birmingham, UK
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Jha A, Singh AK, Weissgerber P, Freichel M, Flockerzi V, Flavell RA, Jha MK. Essential roles for Cavβ2 and Cav1 channels in thymocyte development and T cell homeostasis. Sci Signal 2015; 8:ra103. [DOI: 10.1126/scisignal.aac7538] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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12
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Protein kinase C-dependent activation of CaV1.2 channels selectively controls human TH2-lymphocyte functions. J Allergy Clin Immunol 2013; 133:1175-83. [PMID: 24365142 DOI: 10.1016/j.jaci.2013.10.038] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2013] [Revised: 10/02/2013] [Accepted: 10/28/2013] [Indexed: 02/02/2023]
Abstract
BACKGROUND In addition to calcium release-activated calcium channel/ORAI calcium channels, the role of voltage-gated calcium (Cav1) channels in T-cell calcium signaling is emerging. Cav1 channels are formed by α1 (CaV1.1 to CaV1.4) and auxiliary subunits. We previously demonstrated that mouse TH2 cells selectively overexpressed CaV1.2 and CaV1.3 channels. Knocking down these channels with Cav1 antisense (AS) oligonucleotides inhibited TH2 functions and experimental asthma. OBJECTIVE We investigated the expression profile and role of Cav1 channels in human T-cell subsets, with a focus on TH2 cells. METHODS We compared the profile of CaV1 channel subunit expression in T-cell subsets isolated ex vivo from the blood of healthy donors, as well as in vitro-polarized T-cell subsets, and tested the effect of the Cav1 inhibitors nicardipine and Cav1.2AS on their functions. RESULTS CaV1.4 expression was detectable in CD4(+) T cells, ex vivo TH1 cells, and TH17 cells, whereas Cav1.2 channels predominated in TH2 cells only. T-cell activation resulted in Cav1.4 downregulation, whereas Cav1.2 expression was selectively maintained in polarized TH2 cells and absent in TH1 or TH9 cells. Nicardipine and CaV1.2AS decreased Ca(2+) and cytokine responses in TH2, but not TH1, cells. Protein kinase C (PKC) α/β inhibition decreased Ca(2+) and cytokine responses, whereas both calcium and cytokine responses induced by PKC activation were inhibited by nicardipine or Cav1.2AS in TH2 cells. CONCLUSION This study highlights the selective expression of Cav1.2 channels in human TH2 cells and the role of PKC-dependent Cav1.2 channel activation in TH2 cell function. Blocking PKC or Cav1.2 channel activation in TH2 cells might represent new strategies to treat allergic diseases in human subjects.
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Badou A, Jha MK, Matza D, Flavell RA. Emerging roles of L-type voltage-gated and other calcium channels in T lymphocytes. Front Immunol 2013; 4:243. [PMID: 24009608 PMCID: PMC3757574 DOI: 10.3389/fimmu.2013.00243] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2013] [Accepted: 08/05/2013] [Indexed: 11/16/2022] Open
Abstract
In T lymphocytes, calcium ion controls a variety of biological processes including development, survival, proliferation, and effector functions. These distinct and specific roles are regulated by different calcium signals, which are generated by various plasma membrane calcium channels. The repertoire of calcium-conducting proteins in T lymphocytes includes store-operated CRAC channels, transient receptor potential channels, P2X channels, and L-type voltage-gated calcium (Cav1) channels. In this paper, we will focus mainly on the role of the Cav1 channels found expressed by T lymphocytes, where these channels appear to operate in a T cell receptor stimulation-dependent and voltage sensor independent manner. We will review their expression profile at various differentiation stages of CD4 and CD8 T lymphocytes. Then, we will present crucial genetic evidence in favor of a role of these Cav1 channels and related regulatory proteins in both CD4 and CD8 T cell functions such as proliferation, survival, cytokine production, and cytolysis. Finally, we will provide evidence and speculate on how these voltage-gated channels might function in the T lymphocyte, a non-excitable cell.
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Affiliation(s)
- Abdallah Badou
- Equipe de recherche Environnement et Santé, Faculté Polydisciplinaire de Safi, Université Cadi Ayyad , Safi , Morocco
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Lai NS, Yu CL, Yin WY, Yu HC, Huang HB, Tung CH, Lu MC. Combination of nifedipine and subtherapeutic dose of cyclosporin additively suppresses mononuclear cells activation of patients with rheumatoid arthritis and normal individuals via Ca(2+) -calcineurin-nuclear factor of activated T cells pathway. Clin Exp Immunol 2012; 168:78-86. [PMID: 22385242 DOI: 10.1111/j.1365-2249.2012.04563.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Abnormal Ca(2+) -mediated signalling contributes to the pathogenesis of rheumatoid arthritis (RA). However, the potential implication of calcium channel blocker in RA remained unknown. We hypothesized that nifedipine, an L-type calcium channel blocker, combined with a calcineurin inhibitor, could suppress T cell activation via targeting different level of the Ca(2+) signalling pathway. The percentage of activated T cells and the apoptotic rate of mononuclear cells (MNCs) was measured by flow cytometry. The MNC viability, cytokine production, cytosolic Ca(2+) level and activity of the nuclear factor of activated T cells (NFAT) were measured by enzyme-linked immunosorbent assay (ELISA). The NFAT-regulated gene expression, including interleukin (IL)-2, interferon (IFN)-γ and granulocyte-macrophage colony-stimulating factor (GM-CSF), was measured by real-time polymerase chain reaction (PCR). We found that the percentage of activated T cells in anti-CD3 + anti-CD28-activated MNC was higher in RA patients. High doses of nifedipine (50 µM) increased MNCs apoptosis, inhibited T cell activation and decreased T helper type 2 (Th1) (IFN-γ)/Th2 (IL-10) cytokine production in both groups. The Ca(2+) influx was lower in anti-CD3 + anti-CD28-activated MNC from RA patients than healthy volunteers and suppressed by nifedipine. When combined with a subtherapeutic dose (50 ng/ml) of cyclosporin, 1 µM nifedipine suppressed the percentage of activated T cells in both groups. Moreover, this combination suppressed more IFN-γ secretion and NFAT-regulated gene (GM-CSF and IFN-γ) expression in RA-MNCs than normal MNCs via decreasing the activity of NFATc1. In conclusion, we found that L-type Ca(2+) channel blockers and subtherapeutic doses of cyclosporin act additively to suppress the Ca(2+) -calcineurin-NFAT signalling pathway, leading to inhibition of T cell activity. We propose that this combination may become a potential treatment of RA.
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Affiliation(s)
- N-S Lai
- Division of Allergy, Immunology and Rheumatology Division of General Surgery, Buddhist Dalin Tzu Chi General Hospital, no. 2 Min-Sheng Road, Dalin Town, Chia-Yi, Taiwan
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Dendritic cells in human atherosclerosis: from circulation to atherosclerotic plaques. Mediators Inflamm 2011; 2011:941396. [PMID: 21976788 PMCID: PMC3184502 DOI: 10.1155/2011/941396] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2011] [Accepted: 07/31/2011] [Indexed: 01/11/2023] Open
Abstract
Background. Atherosclerosis is a chronic inflammatory disease with atherosclerotic plaques containing inflammatory infiltrates predominantly consisting of monocytes/macrophages and activated T cells. More recent is the implication of dendritic cells (DCs) in the disease. Since DCs were demonstrated in human arteries in 1995, numerous studies in humans suggest a role for these professional antigen-presenting cells in atherosclerosis. Aim. This paper focuses on the observations made in blood and arteries of patients with atherosclerosis. In principal, flow cytometric analyses show that circulating myeloid (m) and plasmacytoid (p) DCs are diminished in coronary artery disease, while immunohistochemical studies describe increased intimal DC counts with evolving plaque stages. Moreover, mDCs and pDCs appear to behave differently in atherosclerosis. Yet, the origin of plaque DCs and their relationship with blood DCs are unknown. Therefore, several explanations for the observed changes are postulated. In addition, the technical challenges and discrepancies in the research field are discussed. Future. Future studies in humans, in combination with experimental animal studies will unravel mechanisms leading to altered blood and plaque DCs in atherosclerosis. As DCs are crucial for inducing but also dampening immune responses, understanding their life cycle, trafficking and function in atherosclerosis will determine potential use of DCs in antiatherogenic therapies.
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Bidaud I, Lory P. Hallmarks of the channelopathies associated with L-type calcium channels: a focus on the Timothy mutations in Ca(v)1.2 channels. Biochimie 2011; 93:2080-6. [PMID: 21664226 DOI: 10.1016/j.biochi.2011.05.015] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2011] [Accepted: 05/19/2011] [Indexed: 11/29/2022]
Abstract
Within the voltage-gated calcium channels (Cav channels) family, there are four genes coding for the L-type Cav channels (Cav1). The Cav1 channels underly many important physiological functions like excitation-contraction coupling, hormone secretion, neuronal excitability and gene transcription. Mutations found in the genes encoding the Cav channels define a wide variety of diseases called calcium channelopathies and all four genes coding the Cav1 channels are carrying such mutations. L-type calcium channelopathies include muscular, neurological, cardiac and vision syndromes. Among them, the Timothy syndrome (TS) is linked to missense mutations in CACNA1C, the gene that encodes the Ca(v)1.2 subunit. Here we review the important features of the Cav1 channelopathies. We also report on the specific properties of TS-Ca(v)1.2 channels, which display non-inactivating calcium current as well as higher plasma membrane expression. Overall, we conclude that both electrophysiological and surface expression properties must be investigated to better account for the functional consequences of mutations linked to calcium channelopathies.
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Affiliation(s)
- Isabelle Bidaud
- CNRS, UMR-5203, Institut de Génomique Fonctionnelle, Montpellier, France
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Soh J, Kawauchi A, Kanemitsu N, Naya Y, Ochiai A, Naitoh Y, Fujiwara T, Kamoi K, Miki T. Nicardipine vs. Saline Injection as Treatment for Peyronie's Disease: A Prospective, Randomized, Single-Blind Trial. J Sex Med 2010; 7:3743-9. [DOI: 10.1111/j.1743-6109.2010.01924.x] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Cabral MD, Paulet PE, Robert V, Gomes B, Renoud ML, Savignac M, Leclerc C, Moreau M, Lair D, Langelot M, Magnan A, Yssel H, Mariamé B, Guéry JC, Pelletier L. Knocking Down Cav1 Calcium Channels Implicated in Th2 Cell Activation Prevents Experimental Asthma. Am J Respir Crit Care Med 2010; 181:1310-7. [DOI: 10.1164/rccm.200907-1166oc] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
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Sheridan H, Walsh JJ, Jordan M, Cogan C, Frankish N. A series of 1, 2-coupled indane dimers with mast cell stabilisation and smooth muscle relaxation properties. Eur J Med Chem 2009; 44:5018-22. [PMID: 19793620 DOI: 10.1016/j.ejmech.2009.09.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2008] [Revised: 09/02/2009] [Accepted: 09/03/2009] [Indexed: 10/20/2022]
Abstract
Asthma is characterised by bronchoconstriction and inflammation, with infiltration and activation of inflammatory cells such as eosinophils and mast cells, and subsequent release of inflammatory mediators. Much of the therapy directed at the treatment of asthma is either to provide symptomatic relief through bronchodilation or to reduce inflammation to prevent or delay airway remodelling. In an attempt to address both of these issues, a novel series of 1,2-indane dimers has been synthesized and evaluated for smooth muscle relaxant and mast cell stabilising activities. We have identified two lead compounds, 5 and 15, which have substantial mast cell stabilisation activity.
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Affiliation(s)
- H Sheridan
- Trinity College Dublin, Department of Pharmacy and Pharmaceutical Sciences, Panoz Institute, Westland Row, Dublin 2, Ireland.
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Di Sabatino A, Rovedatti L, Kaur R, Spencer JP, Brown JT, Morisset VD, Biancheri P, Leakey NAB, Wilde JI, Scott L, Corazza GR, Lee K, Sengupta N, Knowles CH, Gunthorpe MJ, McLean PG, MacDonald TT, Kruidenier L. Targeting Gut T Cell Ca2+ Release-Activated Ca2+ Channels Inhibits T Cell Cytokine Production and T-Box Transcription Factor T-Bet in Inflammatory Bowel Disease. THE JOURNAL OF IMMUNOLOGY 2009; 183:3454-62. [DOI: 10.4049/jimmunol.0802887] [Citation(s) in RCA: 84] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Lu MC, Lai NS, Yu HC, Hsieh SC, Tung CH, Yu CL. Nifedipine suppresses Th1/Th2 cytokine production and increased apoptosis of anti-CD3 + anti-CD28-activated mononuclear cells from patients with systemic lupus erythematosus via calcineurin pathway. Clin Immunol 2008; 129:462-70. [DOI: 10.1016/j.clim.2008.08.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2008] [Revised: 07/26/2008] [Accepted: 08/01/2008] [Indexed: 10/21/2022]
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Affiliation(s)
- Wendy C Moore
- Center for Human Genomics and Department of Internal Medicine, Wake Forest University School of Medicine, Medical Center Boulevard, Winston-Salem, NC 27157, USA.
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