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Burrello J, Tetti M, Forestiero V, Biemmi V, Bolis S, Pomatto MAC, Amongero M, Di Silvestre D, Mauri P, Vassalli G, Camussi G, Williams TA, Mulatero P, Barile L, Monticone S. Characterization of Circulating Extracellular Vesicle Surface Antigens in Patients With Primary Aldosteronism. Hypertension 2021; 78:726-737. [PMID: 34304584 DOI: 10.1161/hypertensionaha.121.17136] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
[Figure: see text].
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Affiliation(s)
- Jacopo Burrello
- From the Division of Internal Medicine 4 and Hypertension Unit, Department of Medical Sciences, University of Turin, Italy (J.B., M.T., V.F., T.A.W., P. Mulatero, S.M.).,Laboratory for Cardiovascular Theranostics and Laboratory of Cellular and Molecular Cardiology, Cardiocentro Ticino Institute, Lugano, Switzerland (J.B., V.B., S.B., G.V., L.B.)
| | - Martina Tetti
- From the Division of Internal Medicine 4 and Hypertension Unit, Department of Medical Sciences, University of Turin, Italy (J.B., M.T., V.F., T.A.W., P. Mulatero, S.M.)
| | - Vittorio Forestiero
- From the Division of Internal Medicine 4 and Hypertension Unit, Department of Medical Sciences, University of Turin, Italy (J.B., M.T., V.F., T.A.W., P. Mulatero, S.M.)
| | - Vanessa Biemmi
- Laboratory for Cardiovascular Theranostics and Laboratory of Cellular and Molecular Cardiology, Cardiocentro Ticino Institute, Lugano, Switzerland (J.B., V.B., S.B., G.V., L.B.).,Faculty of Biomedical Sciences, Università della Svizzera Italiana, Lugano, Switzerland (V.B., L.B.)
| | - Sara Bolis
- Laboratory for Cardiovascular Theranostics and Laboratory of Cellular and Molecular Cardiology, Cardiocentro Ticino Institute, Lugano, Switzerland (J.B., V.B., S.B., G.V., L.B.)
| | | | - Martina Amongero
- Department of Mathematical Sciences G. L. Lagrange, Polytechnic University of Torino, Italy (M.A.)
| | - Dario Di Silvestre
- Proteomic and Metabolomic Laboratory, Institute for Biomedical Technologies-National Research Council (ITB-CNR), Segrate (Milan), Italy (D.D.S., P. Mauri)
| | - Pierluigi Mauri
- Proteomic and Metabolomic Laboratory, Institute for Biomedical Technologies-National Research Council (ITB-CNR), Segrate (Milan), Italy (D.D.S., P. Mauri)
| | - Giuseppe Vassalli
- Laboratory for Cardiovascular Theranostics and Laboratory of Cellular and Molecular Cardiology, Cardiocentro Ticino Institute, Lugano, Switzerland (J.B., V.B., S.B., G.V., L.B.)
| | - Giovanni Camussi
- Molecular Biotechnology Center, Department of Medical Sciences, University of Torino, Italy (M.A.C.P., G.C.)
| | - Tracy Ann Williams
- From the Division of Internal Medicine 4 and Hypertension Unit, Department of Medical Sciences, University of Turin, Italy (J.B., M.T., V.F., T.A.W., P. Mulatero, S.M.).,Medizinische Klinik und Poliklinik IV, Klinikum der Universität, Ludwig-Maximilians-Universität München, Munich, Germany (T.A.W)
| | - Paolo Mulatero
- From the Division of Internal Medicine 4 and Hypertension Unit, Department of Medical Sciences, University of Turin, Italy (J.B., M.T., V.F., T.A.W., P. Mulatero, S.M.)
| | - Lucio Barile
- Laboratory for Cardiovascular Theranostics and Laboratory of Cellular and Molecular Cardiology, Cardiocentro Ticino Institute, Lugano, Switzerland (J.B., V.B., S.B., G.V., L.B.).,Faculty of Biomedical Sciences, Università della Svizzera Italiana, Lugano, Switzerland (V.B., L.B.)
| | - Silvia Monticone
- From the Division of Internal Medicine 4 and Hypertension Unit, Department of Medical Sciences, University of Turin, Italy (J.B., M.T., V.F., T.A.W., P. Mulatero, S.M.)
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2
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Wang Y, Wang J, Yang R, Wang P, Porche R, Kim S, Lutfy K, Liu L, Friedman TC, Jiang M, Liu Y. Decreased 11β-Hydroxysteroid Dehydrogenase Type 2 Expression in the Kidney May Contribute to Nicotine/Smoking-Induced Blood Pressure Elevation in Mice. Hypertension 2021; 77:1940-1952. [PMID: 33813843 DOI: 10.1161/hypertensionaha.120.16458] [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] [Indexed: 11/16/2022]
Abstract
[Figure: see text].
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Affiliation(s)
- Ying Wang
- Department of Pediatrics, Shanghai Tenth People's Hospital, Tongji University School of Medicine, China (Y.W., R.Y., Y.L.).,Division of Endocrinology, Metabolism and Molecular Medicine, Charles R. Drew University of Medicine and Sciences, Los Angeles, CA (Y.W., J.W., P.W., R.P., S.K., K.L., T.C.F., Y.L.)
| | - Jian Wang
- Division of Endocrinology, Metabolism and Molecular Medicine, Charles R. Drew University of Medicine and Sciences, Los Angeles, CA (Y.W., J.W., P.W., R.P., S.K., K.L., T.C.F., Y.L.).,Department of Neonatology, The First Hospital of Jilin University, Changchun, China (J.W.)
| | - Rong Yang
- Department of Pediatrics, Shanghai Tenth People's Hospital, Tongji University School of Medicine, China (Y.W., R.Y., Y.L.)
| | - Piwen Wang
- Division of Endocrinology, Metabolism and Molecular Medicine, Charles R. Drew University of Medicine and Sciences, Los Angeles, CA (Y.W., J.W., P.W., R.P., S.K., K.L., T.C.F., Y.L.)
| | - Rene Porche
- Division of Endocrinology, Metabolism and Molecular Medicine, Charles R. Drew University of Medicine and Sciences, Los Angeles, CA (Y.W., J.W., P.W., R.P., S.K., K.L., T.C.F., Y.L.)
| | - Samuel Kim
- Division of Endocrinology, Metabolism and Molecular Medicine, Charles R. Drew University of Medicine and Sciences, Los Angeles, CA (Y.W., J.W., P.W., R.P., S.K., K.L., T.C.F., Y.L.)
| | - Kabirullah Lutfy
- Division of Endocrinology, Metabolism and Molecular Medicine, Charles R. Drew University of Medicine and Sciences, Los Angeles, CA (Y.W., J.W., P.W., R.P., S.K., K.L., T.C.F., Y.L.).,College of Pharmacy, Western University of Health Sciences, Pomona, CA (K.L.)
| | - Limei Liu
- Department of Endocrinology and Metabolism, Shanghai Jiaotong University Affiliated Sixth People's Hospital, Shanghai Diabetes Institute, China (L.L.)
| | - Theodore C Friedman
- Division of Endocrinology, Metabolism and Molecular Medicine, Charles R. Drew University of Medicine and Sciences, Los Angeles, CA (Y.W., J.W., P.W., R.P., S.K., K.L., T.C.F., Y.L.).,David Geffen School of Medicine at University of California, Los Angeles (T.C.F., Y.L.)
| | - Meisheng Jiang
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, University of California, Los Angeles (M.J.)
| | - Yanjun Liu
- Department of Pediatrics, Shanghai Tenth People's Hospital, Tongji University School of Medicine, China (Y.W., R.Y., Y.L.).,Division of Endocrinology, Metabolism and Molecular Medicine, Charles R. Drew University of Medicine and Sciences, Los Angeles, CA (Y.W., J.W., P.W., R.P., S.K., K.L., T.C.F., Y.L.).,David Geffen School of Medicine at University of California, Los Angeles (T.C.F., Y.L.)
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3
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Fujikawa H, Kawakami T, Nakashima R, Nasu A, Kamei S, Nohara H, Eto Y, Ueno-Shuto K, Takeo T, Nakagata N, Suico MA, Kai H, Shuto T. Azithromycin Inhibits Constitutive Airway Epithelial Sodium Channel Activation in Vitro and Modulates Downstream Pathogenesis in Vivo. Biol Pharm Bull 2020; 43:725-730. [PMID: 32009028 DOI: 10.1248/bpb.b19-01091] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Epithelial sodium channel (ENaC) is an amiloride-sensitive sodium ion channel that is expressed in epithelial tissues. ENaC overexpression and/or hyperactivation in airway epithelial cells cause sodium over-absorption and dysregulated ciliary movement for mucus clearance; however, the agents that suppress constitutive airway ENaC activation are yet to be clinically available. Here, we focused on macrolides, which are widely used antibiotics that have many potential immunomodulatory effects. We examined whether macrolides could modulate constitutive ENaC activity and downstream events that typify cystic fibrosis (CF) and chronic obstructive pulmonary diseases (COPD) in in vitro and in vivo models of ENaC overexpression. Treatment of ENaC-overexpressing human bronchial epithelial cells (β/γENaC-16HBE14o- cells) with three macrolides (erythromycin, clarithromycin, azithromycin) confirmed dose-dependent suppression of ENaC function. For in vivo studies, mice harboring airway specific βENaC overexpression (C57BL/6J-βENaC-transgenic mice) were treated orally with azithromycin, a well-established antimicrobial agent that has been widely prescribed. Azithromycin treatment modulated pulmonary mechanics, emphysematous phenotype and pulmonary dysfunction. Notably, a lower dose (3 mg kg-1) of azithromycin significantly increased forced expiratory volume in 0.1 s (FEV0.1), an inverse indicator of bronchoconstriction. Although not statistically significant, improvement of pulmonary obstructive parameters such as emphysema and lung dysfunction (FEV0.1%) was observed. Our results demonstrate that macrolides directly attenuate constitutive ENaC function in vitro and may be promising for the treatment of obstructive lung diseases with defective mucociliary clearance, possibly by targeting ENaC hyperactivation.
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Affiliation(s)
- Haruka Fujikawa
- Department of Molecular Medicine, Graduate School of Pharmaceutical Sciences, Kumamoto University.,Program for Leading Graduate Schools "HIGO (Health life science: Interdisciplinary and Glocal Oriented) Program," Kumamoto University
| | - Taise Kawakami
- Department of Molecular Medicine, Graduate School of Pharmaceutical Sciences, Kumamoto University
| | - Ryunosuke Nakashima
- Department of Molecular Medicine, Graduate School of Pharmaceutical Sciences, Kumamoto University
| | - Aoi Nasu
- Department of Molecular Medicine, Graduate School of Pharmaceutical Sciences, Kumamoto University
| | - Shunsuke Kamei
- Department of Molecular Medicine, Graduate School of Pharmaceutical Sciences, Kumamoto University.,Program for Leading Graduate Schools "HIGO (Health life science: Interdisciplinary and Glocal Oriented) Program," Kumamoto University.,Center for Inflammation, Immunity & Infection, Institute for Biomedical Sciences, Georgia State University
| | - Hirofumi Nohara
- Department of Molecular Medicine, Graduate School of Pharmaceutical Sciences, Kumamoto University.,Program for Leading Graduate Schools "HIGO (Health life science: Interdisciplinary and Glocal Oriented) Program," Kumamoto University
| | - Yuka Eto
- Department of Molecular Medicine, Graduate School of Pharmaceutical Sciences, Kumamoto University
| | - Keiko Ueno-Shuto
- Laboratory of Pharmacology, Division of Life Science, Faculty of Pharmaceutical Sciences, Sojo University
| | - Toru Takeo
- Division of Reproductive Engineering, Center for Animal Resources and Development (CARD), Kumamoto University
| | - Naomi Nakagata
- Division of Reproductive Engineering, Center for Animal Resources and Development (CARD), Kumamoto University
| | - Mary Ann Suico
- Department of Molecular Medicine, Graduate School of Pharmaceutical Sciences, Kumamoto University.,Global Center for Natural Resources Sciences, Faculty of Life Sciences, Kumamoto University
| | - Hirofumi Kai
- Department of Molecular Medicine, Graduate School of Pharmaceutical Sciences, Kumamoto University.,Global Center for Natural Resources Sciences, Faculty of Life Sciences, Kumamoto University
| | - Tsuyoshi Shuto
- Department of Molecular Medicine, Graduate School of Pharmaceutical Sciences, Kumamoto University.,Global Center for Natural Resources Sciences, Faculty of Life Sciences, Kumamoto University
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4
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Kamei S, Fujikawa H, Nohara H, Ueno-Shuto K, Maruta K, Nakashima R, Kawakami T, Matsumoto C, Sakaguchi Y, Ono T, Suico MA, Boucher RC, Gruenert DC, Takeo T, Nakagata N, Li JD, Kai H, Shuto T. Zinc Deficiency via a Splice Switch in Zinc Importer ZIP2/SLC39A2 Causes Cystic Fibrosis-Associated MUC5AC Hypersecretion in Airway Epithelial Cells. EBioMedicine 2017; 27:304-316. [PMID: 29289532 PMCID: PMC5828551 DOI: 10.1016/j.ebiom.2017.12.025] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2017] [Revised: 12/15/2017] [Accepted: 12/19/2017] [Indexed: 01/02/2023] Open
Abstract
Airway mucus hyperproduction and fluid imbalance are important hallmarks of cystic fibrosis (CF), the most common life-shortening genetic disorder in Caucasians. Dysregulated expression and/or function of airway ion transporters, including cystic fibrosis transmembrane conductance regulator (CFTR) and epithelial sodium channel (ENaC), have been implicated as causes of CF-associated mucus hypersecretory phenotype. However, the contributory roles of other substances and transporters in the regulation of CF airway pathogenesis remain unelucidated. Here, we identified a novel connection between CFTR/ENaC expression and the intracellular Zn2 + concentration in the regulation of MUC5AC, a major secreted mucin that is highly expressed in CF airway. CFTR-defective and ENaC-hyperactive airway epithelial cells specifically and highly expressed a unique, alternative splice isoform of the zinc importer ZIP2/SLC39A2 (ΔC-ZIP2), which lacks the C-terminal domain. Importantly, ΔC-ZIP2 levels correlated inversely with wild-type ZIP2 and intracellular Zn2 + levels. Moreover, the splice switch to ΔC-ZIP2 as well as decreased expression of other ZIPs caused zinc deficiency, which is sufficient for induction of MUC5AC; while ΔC-ZIP2 expression per se induced ENaC expression and function. Thus, our findings demonstrate that the novel splicing switch contributes to CF lung pathology via the novel interplay of CFTR, ENaC, and ZIP2 transporters. Zinc deficiency is a common feature in both CFTR-defective (CF) and ENaC-hyperactive (CF-like) airway epithelial cells. A splice switch from WT-ZIP2 to ΔC-ZIP2 as well as other ZIPs down-regulation caused zinc deficiency in CF and CF-like cells. Lower intracellular Zn2 + levels contributed to CF-associated MUC5AC hypersecretion in airway epithelial cells.
The role of zinc in the pathogenesis of CF lung disease is not well understood. We utilized human CF patient-derived cell lines and primary cells as well as murine CF model, and identified zinc deficiency as a common characteristic in CF models. Down-regulation of several zinc importers (ZIPs) in CF cells caused zinc deficiency, which is sufficient for induction of MUC5AC, a major secreted mucin that exacerbates CF pathogenesis. Especially, strong contribution of ΔC-ZIP2, a novel ZIP2 splice isoform, in the regulation of CF-associated MUC5AC hypersecretion was clearly demonstrated. The study refined the importance of zinc in airway homeostasis.
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Affiliation(s)
- Shunsuke Kamei
- Department of Molecular Medicine, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-Honmachi, Chuo-ku, Kumamoto 862-0973, Japan; Program for Leading Graduate Schools "HIGO (Health life science: Interdisciplinary and Glocal Oriented) Program", Kumamoto University, 5-1 Oe-Honmachi, Chuo-ku, Kumamoto 862-0973, Japan
| | - Haruka Fujikawa
- Department of Molecular Medicine, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-Honmachi, Chuo-ku, Kumamoto 862-0973, Japan; Program for Leading Graduate Schools "HIGO (Health life science: Interdisciplinary and Glocal Oriented) Program", Kumamoto University, 5-1 Oe-Honmachi, Chuo-ku, Kumamoto 862-0973, Japan
| | - Hirofumi Nohara
- Department of Molecular Medicine, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-Honmachi, Chuo-ku, Kumamoto 862-0973, Japan; Program for Leading Graduate Schools "HIGO (Health life science: Interdisciplinary and Glocal Oriented) Program", Kumamoto University, 5-1 Oe-Honmachi, Chuo-ku, Kumamoto 862-0973, Japan
| | - Keiko Ueno-Shuto
- Laboratory of Pharmacology, Division of Life Science, Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto 860-0082, Japan
| | - Kasumi Maruta
- Department of Molecular Medicine, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-Honmachi, Chuo-ku, Kumamoto 862-0973, Japan
| | - Ryunosuke Nakashima
- Department of Molecular Medicine, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-Honmachi, Chuo-ku, Kumamoto 862-0973, Japan
| | - Taisei Kawakami
- Department of Molecular Medicine, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-Honmachi, Chuo-ku, Kumamoto 862-0973, Japan
| | - Chizuru Matsumoto
- Department of Molecular Medicine, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-Honmachi, Chuo-ku, Kumamoto 862-0973, Japan
| | - Yuki Sakaguchi
- Department of Molecular Medicine, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-Honmachi, Chuo-ku, Kumamoto 862-0973, Japan
| | - Tomomi Ono
- Department of Molecular Medicine, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-Honmachi, Chuo-ku, Kumamoto 862-0973, Japan
| | - Mary Ann Suico
- Department of Molecular Medicine, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-Honmachi, Chuo-ku, Kumamoto 862-0973, Japan
| | - Richard C Boucher
- Marsico Lung Institute, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Dieter C Gruenert
- Head and Neck Stem Cell Lab, University of California, San Francisco, 2340 Sutter St, Box 1330, N331, San Francisco, CA 94115, USA
| | - Toru Takeo
- Division of Reproductive Engineering, Center for Animal Resources and Development (CARD), Kumamoto University, 2-2-1 Honjo, Chuo-ku, Kumamoto 860-0811, Japan
| | - Naomi Nakagata
- Division of Reproductive Engineering, Center for Animal Resources and Development (CARD), Kumamoto University, 2-2-1 Honjo, Chuo-ku, Kumamoto 860-0811, Japan
| | - Jian-Dong Li
- Center for Inflammation, Immunity & Infection, Institute for Biomedical Sciences, Georgia State University, 714 Petit Science Center, 100 Piedmont Ave SE, Atlanta GA30303, USA
| | - Hirofumi Kai
- Department of Molecular Medicine, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-Honmachi, Chuo-ku, Kumamoto 862-0973, Japan.
| | - Tsuyoshi Shuto
- Department of Molecular Medicine, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-Honmachi, Chuo-ku, Kumamoto 862-0973, Japan.
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Calreticulin: roles in cell-surface protein expression. MEMBRANES 2014; 4:630-41. [PMID: 25230046 PMCID: PMC4194052 DOI: 10.3390/membranes4030630] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2014] [Revised: 09/05/2014] [Accepted: 09/09/2014] [Indexed: 12/03/2022]
Abstract
In order to perform their designated functions, proteins require precise subcellular localizations. For cell-surface proteins, such as receptors and channels, they are able to transduce signals only when properly targeted to the cell membrane. Calreticulin is a multi-functional chaperone protein involved in protein folding, maturation, and trafficking. However, evidence has been accumulating that calreticulin can also negatively regulate the surface expression of certain receptors and channels. In these instances, depletion of calreticulin enhances cell-surface expression and function. In this review, we discuss the role of calreticulin with a focus on its negative effects on the expression of cell-surface proteins.
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6
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Mizunoe S, Shuto T, Suzuki S, Matsumoto C, Watanabe K, Ueno-Shuto K, Suico MA, Onuki K, Gruenert DC, Kai H. Synergism between interleukin (IL)-17 and Toll-like receptor 2 and 4 signals to induce IL-8 expression in cystic fibrosis airway epithelial cells. J Pharmacol Sci 2012; 118:512-520. [PMID: 22466961 DOI: 10.1254/jphs.11240fp] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Cystic fibrosis (CF) is the most common lethal inherited disorder and is caused by mutations in the gene encoding the CF transmembrane regulator (CFTR). The CF lung expresses a profound proinflammatory phenotype that appears to be related to a constitutive hypersecretion of interleukin (IL)-8 from airway epithelial cells in response to microbial infection. Since overproduction of IL-8 in CF contributes to massive bronchial infiltrates of neutrophils, identification of the pathways underlying IL-8 induction could provide novel drug targets for treatment of neutrophil-dominated inflammatory diseases such as CF. Here, we show that IL-17A synergistically increases IL-8 production induced by a toll-like receptor (TLR) 2 agonist, peptidoglycan (PGN), or TLR4 agonist, lipopolysaccharide (LPS), in a human CF bronchial epithelial cell line (CFBE41o-). A strong synergism was also observed in primary human CF bronchial epithelial cells, but not in human non-CF cell lines and primary cells. Notably, despite the induction of nuclear factor-κB and MAP kinases during TLR2 or TLR4 activation in CFBE41o-, IL-17A-dependent synergism appears to be the result of enhanced PGN- or LPS-induced phosphorylation of p38. Taken together, these studies provide evidence that IL-17A is a critical factor in increasing IL-8 expression in bacteria-infected CF airways via a pathway that regulates p38 phosphorylation.
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Affiliation(s)
- Shota Mizunoe
- Department of Molecular Medicine, Graduate School of Pharmaceutical Sciences, Global COE "Cell Fate Regulation Research and Education Unit", Kumamoto University, Kumamoto 862-0973, Japan.,The Japan Society for the Promotion of Science (JSPS), Tokyo 102-8472, Japan
| | - Tsuyoshi Shuto
- Department of Molecular Medicine, Graduate School of Pharmaceutical Sciences, Global COE "Cell Fate Regulation Research and Education Unit", Kumamoto University, Kumamoto 862-0973, Japan
| | - Shingo Suzuki
- Department of Molecular Medicine, Graduate School of Pharmaceutical Sciences, Global COE "Cell Fate Regulation Research and Education Unit", Kumamoto University, Kumamoto 862-0973, Japan
| | - Chizuru Matsumoto
- Department of Molecular Medicine, Graduate School of Pharmaceutical Sciences, Global COE "Cell Fate Regulation Research and Education Unit", Kumamoto University, Kumamoto 862-0973, Japan
| | - Kenji Watanabe
- Department of Molecular Medicine, Graduate School of Pharmaceutical Sciences, Global COE "Cell Fate Regulation Research and Education Unit", Kumamoto University, Kumamoto 862-0973, Japan.,The Japan Society for the Promotion of Science (JSPS), Tokyo 102-8472, Japan
| | - Keiko Ueno-Shuto
- Laboratory of Pharmacology, Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto 860-0082, Japan
| | - Mary Ann Suico
- Department of Molecular Medicine, Graduate School of Pharmaceutical Sciences, Global COE "Cell Fate Regulation Research and Education Unit", Kumamoto University, Kumamoto 862-0973, Japan
| | - Kouhei Onuki
- Department of Molecular Medicine, Graduate School of Pharmaceutical Sciences, Global COE "Cell Fate Regulation Research and Education Unit", Kumamoto University, Kumamoto 862-0973, Japan.,The Japan Society for the Promotion of Science (JSPS), Tokyo 102-8472, Japan
| | - Dieter C Gruenert
- Department of Otolaryngology - Head and Neck Surgery.,Department of Laboratory Medicine.,Eli and Edythe Broad Center for Regenerative Medicine and Stem Cell Research.,Helen Diller Family Comprehensive Cancer Center.,Institute for Human Genetics.,Cardiovascular Research Institute, University of California, San Francisco, San Francisco, CA 94115, USA.,Department of Pediatrics, University of Vermont College of Medicine, Burlington, VT 05405, USA
| | - Hirofumi Kai
- Department of Molecular Medicine, Graduate School of Pharmaceutical Sciences, Global COE "Cell Fate Regulation Research and Education Unit", Kumamoto University, Kumamoto 862-0973, Japan
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7
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Watanabe K, Shuto T, Sato M, Onuki K, Mizunoe S, Suzuki S, Sato T, Koga T, Suico MA, Kai H, Ikeda T. Lucidenic acids-rich extract from antlered form of Ganoderma lucidum enhances TNFα induction in THP-1 monocytic cells possibly via its modulation of MAP kinases p38 and JNK. Biochem Biophys Res Commun 2011; 408:18-24. [PMID: 21453678 DOI: 10.1016/j.bbrc.2011.03.108] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2011] [Accepted: 03/24/2011] [Indexed: 01/03/2023]
Abstract
The Ganoderma lucidum (G. lucidum) is one of the oriental fungi that has been reported to have immunomodulatory properties. Although effect of β-glucans from G. lucidum has been well documented, little is known about how other major bioactive components, the triterpenes, contribute to the immunomodulatory function of G. lucidum. Here, we showed that triterpenes-rich extract of antlered form of G. lucidum (G. lucidum AF) induces TNFα production in monocytic THP-1 cells. Furthermore, the extract also synergized with lipopolysaccharide (LPS) to induce TNFα production in THP-1 cells, suggesting an immunostimulatory role of triterpenes-rich extract of G. lucidum AF. Notably, the extract enhanced LPS-induced phosphorylation of p38 mitogen-activated protein kinase (MAPK), while it suppressed LPS-induced phosphorylation of c-Jun N-terminal kinase (JNK) MAPK. p38 Inhibitor suppressed TNFα production, while JNK inhibitor enhanced TNFα production, implying that synergistic effect of the extract may work by modulating p38 and JNK MAPKs. Moreover, we found that the triterpenes-rich extract of G. lucidum AF contains high amounts of lucidenic acids. Lucidenic acid-A, -F and -D(2), which seem to dominantly exist in the extract, were purified from the triterpenes-rich extract. We also identified Lucidenic acid-A and -F as modulators of JNK and p38, respectively. Thus, our data demonstrate that lucidenic acids-rich extract from G. lucidum AF enhances LPS-induced immune responses in monocytic THP-1 cells possibly via the modulation of p38 and JNK MAPKs activation.
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Affiliation(s)
- Kenji Watanabe
- Department of Molecular Medicine, Graduate School of Pharmaceutical Sciences, Global COE Cell Fate Regulation Research and Education Unit, Kumamoto University, 5-1 Oe-Honmachi, Kumamoto 862-0973, Japan
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8
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Sugiyama T, Shuto T, Suzuki S, Sato T, Koga T, Suico MA, Kusuhara H, Sugiyama Y, Cyr DM, Kai H. Posttranslational negative regulation of glycosylated and non-glycosylated BCRP expression by Derlin-1. Biochem Biophys Res Commun 2010; 404:853-8. [PMID: 21184741 DOI: 10.1016/j.bbrc.2010.12.074] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2010] [Accepted: 12/15/2010] [Indexed: 12/31/2022]
Abstract
Human breast cancer resistance protein (BCRP)/MXR/ABCG2 is a well-recognized ABC half-transporter that is highly expressed at the apical membrane of many normal tissues and cancer cells. BCRP facilitates disposition of endogenous and exogenous harmful xenobiotics to protect cells/tissues from xenobiotic-induced toxicity. Despite the enormous impact of BCRP in the physiological and pathophysiological regulation of the transport of a wide variety of substrates, little is known about the factors that regulate posttranslational expression of BCRP. Here, we identified Derlin-1, a member of a family of proteins that bears homology to yeast Der1p, as a posttranslational regulator of BCRP expression. Overexpression of Derlin-1 suppressed ER to Golgi transport of wild-type (WT) BCRP that is known to be efficiently trafficked to the plasma membrane. On the other hand, protein expression of N596Q variant of BCRP, N-linked glycosylation-deficient mutant that preferentially undergoes ubiquitin-mediated ER-associated degradation (ERAD), was strongly suppressed by the overexpression of Derlin-1, whereas knockdown of Derlin-1 stabilized N596Q protein, suggesting a negative regulatory role of Derlin-1 for N596Q protein expression. Notably, knockdown of Derlin-1 also stabilized the expression of tunicamycin-induced deglycosylated WT BCRP protein, implying the importance of glycosylation state for the recognition of BCRP by Derlin-1. Thus, our data demonstrate that Derlin-1 is a negative regulator for both glycosylated and non-glycosylated BCRP expression and provide a novel posttranslational regulatory mechanism of BCRP by Derlin-1.
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Affiliation(s)
- Takashi Sugiyama
- Department of Molecular Medicine, Graduate School of Pharmaceutical Sciences, Global COE Cell Fate Regulation Research and Education Unit, Kumamoto University, 5-1 Oe-Honmachi, Kumamoto 862-0973, Japan
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