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Zhou J, Pathak JL, Cao T, Chen B, Wei W, Hu S, Mao T, Wu X, Watanabe N, Li X, Li J. CD4 T cell-secreted IFN-γ in Sjögren's syndrome induces salivary gland epithelial cell ferroptosis. Biochim Biophys Acta Mol Basis Dis 2024; 1870:167121. [PMID: 38471652 DOI: 10.1016/j.bbadis.2024.167121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 03/05/2024] [Accepted: 03/06/2024] [Indexed: 03/14/2024]
Abstract
BACKGROUND Sjögren's syndrome (SS) is a chronic autoimmune disease that predominantly affects exocrine glands. Previous studies have demonstrated that upregulated interferon-gamma (IFN-γ) in SS triggers ferroptosis in salivary gland epithelial cells (SGECs), resulting in impaired salivary gland secretion. However, the immune cells responsible for secreting IFN-γ remain unclear. Therefore, this study conducted bioinformatics analysis and molecular validation to identify the origin of IFN-γ in SS salivary gland. METHODS The 'limma' package in R software was utilized to identify differentially expressed genes (DEGs) in the human SS dataset. Subsequently, the identified DEGs were compared with the ferroptosis database and screened through Cytoscape to determine candidate genes. The cellular localization and expression patterns of candidate genes were further confirmed in the salivary gland single-cell RNA sequence (scRNA-seq) data set from healthy control and SS mice. Furthermore, in vitro and in vivo studies were performed to analyze the effect of CD4 T-secreted IFN-γ on SGECs' ferroptosis and functions. RESULTS Upregulated TLR4, IFNG, and IL33 were screened as candidates ferroptosis ferroptosis-inducing genes in SS salivary glands. The association of IFNG and IL33 with CD4 T cells was established through immune infiltration analysis. The expression of IFN-γ on CD4 T cells was robustly higher compared with that of IL33 as evidenced by scRNA-seq and immunofluorescence co-localization. Subsequent experiments conducted on candidate genes consistently demonstrated the potent ability of IFN-γ to induce SGECs' ferroptosis and inhibit AQP5 expression. CONCLUSIONS Our findings indicate that CD4 T cell-secreted IFN-γ in SS induces SGECs' ferroptosis and inhibits AQP5 expression.
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Affiliation(s)
- Jiannan Zhou
- School and Hospital of Stomatology, Guangdong Engineering Research Center of Oral Restoration and Reconstruction & Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou Medical University, Guangzhou 510182, China
| | - Janak L Pathak
- School and Hospital of Stomatology, Guangdong Engineering Research Center of Oral Restoration and Reconstruction & Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou Medical University, Guangzhou 510182, China
| | - Tingting Cao
- School and Hospital of Stomatology, Guangdong Engineering Research Center of Oral Restoration and Reconstruction & Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou Medical University, Guangzhou 510182, China
| | - Bo Chen
- School and Hospital of Stomatology, Guangdong Engineering Research Center of Oral Restoration and Reconstruction & Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou Medical University, Guangzhou 510182, China
| | - Wei Wei
- Hospital of Stomatology, Jilin University, Changchun 130021, China
| | - Shilin Hu
- School and Hospital of Stomatology, Guangdong Engineering Research Center of Oral Restoration and Reconstruction & Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou Medical University, Guangzhou 510182, China
| | - Tianjiao Mao
- School and Hospital of Stomatology, Guangdong Engineering Research Center of Oral Restoration and Reconstruction & Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou Medical University, Guangzhou 510182, China
| | - Xiaodan Wu
- School and Hospital of Stomatology, Guangdong Engineering Research Center of Oral Restoration and Reconstruction & Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou Medical University, Guangzhou 510182, China
| | - Nobumoto Watanabe
- Chemical Resource Development Research Unit, RIKEN CSRS, Wako, Saitama, 351-0198, Japan
| | - Xiaomeng Li
- KingMed School of Laboratory Medicine, Guangzhou Medical University, Guangzhou, Guangdong 510182, China.
| | - Jiang Li
- School and Hospital of Stomatology, Guangdong Engineering Research Center of Oral Restoration and Reconstruction & Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou Medical University, Guangzhou 510182, China.
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Rosell R, Codony-Servat J, González J, Santarpia M, Jain A, Shivamallu C, Wang Y, Giménez-Capitán A, Molina-Vila MA, Nilsson J, González-Cao M. KRAS G12C-mutant driven non-small cell lung cancer (NSCLC). Crit Rev Oncol Hematol 2024; 195:104228. [PMID: 38072173 DOI: 10.1016/j.critrevonc.2023.104228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 12/02/2023] [Indexed: 02/20/2024] Open
Abstract
KRAS G12C mutations in non-small cell lung cancer (NSCLC) partially respond to KRAS G12C covalent inhibitors. However, early adaptive resistance occurs due to rewiring of signaling pathways, activating receptor tyrosine kinases, primarily EGFR, but also MET and ligands. Evidence indicates that treatment with KRAS G12C inhibitors (sotorasib) triggers the MRAS:SHOC2:PP1C trimeric complex. Activation of MRAS occurs from alterations in the Scribble and Hippo-dependent pathways, leading to YAP activation. Other mechanisms that involve STAT3 signaling are intertwined with the activation of MRAS. The high-resolution MRAS:SHOC2:PP1C crystallization structure allows in silico analysis for drug development. Activation of MRAS:SHOC2:PP1C is primarily Scribble-driven and downregulated by HUWE1. The reactivation of the MRAS complex is carried out by valosin containing protein (VCP). Exploring these pathways as therapeutic targets and their impact on different chemotherapeutic agents (carboplatin, paclitaxel) is crucial. Comutations in STK11/LKB1 often co-occur with KRAS G12C, jeopardizing the effect of immune checkpoint (anti-PD1/PDL1) inhibitors.
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Affiliation(s)
- Rafael Rosell
- Germans Trias i Pujol Research Institute, Badalona (IGTP), Spain; IOR, Hospital Quiron-Dexeus, Barcelona, Spain.
| | | | - Jessica González
- Germans Trias i Pujol Research Institute, Badalona (IGTP), Spain
| | - Mariacarmela Santarpia
- Medical Oncology Unit, Department of Human Pathology "G. Barresi", University of Messina, Italy
| | - Anisha Jain
- Department of Microbiology, JSS Academy of Higher Education & Research, Mysuru, India
| | - Chandan Shivamallu
- Department of Biotechnology & Bioinformatics, JSS Academy of Higher Education & Research, Mysuru, Karnataka, India
| | - Yu Wang
- Genfleet Therapeutics, Shanghai, China
| | | | | | - Jonas Nilsson
- Department Radiation Sciences, Oncology, Umeå University, Sweden
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Fujita Y, Taniguchi A, Yamamoto H, Obinata H, Kogo H, Iizuka-Kogo A, Ikezawa M, Tajika Y, Yokoo S, Matsuzaki T. Aquaporin-5 Protein Is Selectively Reduced in Rat Parotid Glands under Conditions of Fasting or a Liquid Diet. Acta Histochem Cytochem 2024; 57:25-33. [PMID: 38463206 PMCID: PMC10918431 DOI: 10.1267/ahc.24-00003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Accepted: 01/13/2024] [Indexed: 03/12/2024] Open
Abstract
Aquaporin-5 (AQP5) water channel, transmembrane protein 16A (TMEM16A) Ca2+-activated Cl- channel, and Na+-K+-2Cl- cotransporter (NKCC1) are membrane proteins on salivary gland acinar cells that function in watery saliva secretion. We examined their expression changes in rat parotid glands under reduced mastication. Rats were either fed regular chow as a control group, fasted for 48 hr or fed a liquid diet for 48 hr or 1 week to reduce mastication. The parotid glands were then resected to analyze the protein and mRNA levels by immunofluorescence, immunoblotting, and reverse-transcription quantitative PCR (RT-qPCR). AQP5 protein was significantly decreased in both liquid diet groups and the fasting group but its mRNA levels showed no apparent changes compared with the control group. The protein and mRNA levels of TMEM16A and NKCC1 showed no significant changes between any of the groups other than an increase in NKCC1 mRNA in the 1-week liquid diet group. These results suggest that reduced mastication may increase the AQP5 protein degradation, but not that of other membrane proteins necessary for saliva secretion.
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Affiliation(s)
- Yoshie Fujita
- Department of Oral and Maxillofacial Surgery, and Plastic Surgery, Gunma University Graduate School of Medicine, 3–39–22, Showa-machi, Maebashi Gunma 371–8511, Japan
- Department of Anatomy and Cell Biology, Gunma University Graduate School of Medicine, 3–39–22, Showa-machi, Maebashi Gunma 371–8511, Japan
| | - Akie Taniguchi
- Department of Oral and Maxillofacial Surgery, and Plastic Surgery, Gunma University Graduate School of Medicine, 3–39–22, Showa-machi, Maebashi Gunma 371–8511, Japan
- Department of Anatomy and Cell Biology, Gunma University Graduate School of Medicine, 3–39–22, Showa-machi, Maebashi Gunma 371–8511, Japan
| | - Hanako Yamamoto
- Department of Anatomy and Cell Biology, Gunma University Graduate School of Medicine, 3–39–22, Showa-machi, Maebashi Gunma 371–8511, Japan
| | - Hideru Obinata
- Laboratory for Analytical Instruments, Education and Research Support Center, Gunma University Graduate School of Medicine, 3–39–22, Showa-machi, Maebashi Gunma 371–8511, Japan
| | - Hiroshi Kogo
- Department of Anatomy and Cell Biology, Gunma University Graduate School of Medicine, 3–39–22, Showa-machi, Maebashi Gunma 371–8511, Japan
| | - Akiko Iizuka-Kogo
- Department of Anatomy and Cell Biology, Gunma University Graduate School of Medicine, 3–39–22, Showa-machi, Maebashi Gunma 371–8511, Japan
| | - Maiko Ikezawa
- Department of Anatomy and Cell Biology, Gunma University Graduate School of Medicine, 3–39–22, Showa-machi, Maebashi Gunma 371–8511, Japan
| | - Yukiko Tajika
- Department of Anatomy and Cell Biology, Gunma University Graduate School of Medicine, 3–39–22, Showa-machi, Maebashi Gunma 371–8511, Japan
| | - Satoshi Yokoo
- Department of Oral and Maxillofacial Surgery, and Plastic Surgery, Gunma University Graduate School of Medicine, 3–39–22, Showa-machi, Maebashi Gunma 371–8511, Japan
| | - Toshiyuki Matsuzaki
- Department of Anatomy and Cell Biology, Gunma University Graduate School of Medicine, 3–39–22, Showa-machi, Maebashi Gunma 371–8511, Japan
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Mom R, Réty S, Mocquet V, Auguin D. Deciphering Molecular Mechanisms Involved in the Modulation of Human Aquaporins' Water Permeability by Zinc Cations: A Molecular Dynamics Approach. Int J Mol Sci 2024; 25:2267. [PMID: 38396944 PMCID: PMC10888569 DOI: 10.3390/ijms25042267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 02/03/2024] [Accepted: 02/05/2024] [Indexed: 02/25/2024] Open
Abstract
Aquaporins (AQPs) constitute a wide family of water channels implicated in all kind of physiological processes. Zinc is the second most abundant trace element in the human body and a few studies have highlighted regulation of AQP0 and AQP4 by zinc. In the present work, we addressed the putative regulation of AQPs by zinc cations in silico through molecular dynamics simulations of human AQP0, AQP2, AQP4, and AQP5. Our results align with other scales of study and several in vitro techniques, hence strengthening the reliability of this regulation by zinc. We also described two distinct putative molecular mechanisms associated with the increase or decrease in AQPs' water permeability after zinc binding. In association with other studies, our work will help deciphering the interaction networks existing between zinc and channel proteins.
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Affiliation(s)
- Robin Mom
- Laboratoire de Biologie et Modélisation de la Cellule, ENS de Lyon, Université Claude Bernard, CNRS UMR 5239, INSERM U1293, 46 Allée d’Italie Site Jacques Monod, F-69007 Lyon, France; (S.R.); (V.M.)
- Research Group on Vestibular Pathophysiology, CNRS, Unit GDR2074, F-13331 Marseille, France
| | - Stéphane Réty
- Laboratoire de Biologie et Modélisation de la Cellule, ENS de Lyon, Université Claude Bernard, CNRS UMR 5239, INSERM U1293, 46 Allée d’Italie Site Jacques Monod, F-69007 Lyon, France; (S.R.); (V.M.)
| | - Vincent Mocquet
- Laboratoire de Biologie et Modélisation de la Cellule, ENS de Lyon, Université Claude Bernard, CNRS UMR 5239, INSERM U1293, 46 Allée d’Italie Site Jacques Monod, F-69007 Lyon, France; (S.R.); (V.M.)
| | - Daniel Auguin
- Laboratoire de Physiologie, Ecologie et Environnement (P2E), UPRES EA 1207/USC INRAE-1328, UFR Sciences et Techniques, Université d’Orléans, F-45067 Orléans, France
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Rump K, Koos B, Ziehe D, Thon P, Rahmel T, Palmowski L, Marko B, Wolf A, Witowski A, Bazzi Z, Bazzi M, Orlowski J, Adamzik M, Bergmann L, Unterberg M. Methazolamide Reduces the AQP5 mRNA Expression and Immune Cell Migration-A New Potential Drug in Sepsis Therapy? Int J Mol Sci 2024; 25:610. [PMID: 38203778 PMCID: PMC10779206 DOI: 10.3390/ijms25010610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 12/27/2023] [Accepted: 12/28/2023] [Indexed: 01/12/2024] Open
Abstract
Sepsis is a life-threatening condition caused by the dysregulated host response to infection. Novel therapeutic options are urgently needed and aquaporin inhibitors could suffice as aquaporin 5 (Aqp5) knockdown provided enhanced sepsis survival in a murine sepsis model. Potential AQP5 inhibitors provide sulfonamides and their derivatives. In this study, we tested the hypothesis that sulfonamides reduce AQP5 expression in different conditions. The impact of sulfonamides on AQP5 expression and immune cell migration was examined in cell lines REH and RAW 264.7 by qPCR, Western blot and migration assay. Subsequently, whether furosemide and methazolamide are capable of reducing AQP5 expression after LPS incubation was investigated in whole blood samples of healthy volunteers. Incubation with methazolamide (10-5 M) and furosemide (10-6 M) reduced AQP5 mRNA and protein expression by about 30% in REH cells. Pre-incubation of the cells with methazolamide reduced cell migration towards SDF1-α compared to non-preincubated cells to control level. Pre-incubation with methazolamide in PBMCs led to a reduction in LPS-induced AQP5 expression compared to control levels, while furosemide failed to reduce it. Methazolamide appears to reduce AQP5 expression and migration of immune cells. However, after LPS administration, the reduction in AQP5 expression by methazolamide is no longer possible. Hence, our study indicates that methazolamide is capable of reducing AQP5 expression and has the potential to be used in sepsis prophylaxis.
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Affiliation(s)
- Katharina Rump
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Knappschaftskrankenhaus Bochum, 44892 Bochum, Germany; (B.K.); (D.Z.); (P.T.); (T.R.); (L.P.); (B.M.); (A.W.); (A.W.); (Z.B.); (M.B.); (J.O.); (M.A.); (M.U.)
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Nagase H, Shitara A, Ohno Y, Satoh K, Kashimata M. Loss of Cdc42 in Exocrine Acini Decreases Saliva Secretion but Increases Tear Secretion-A Potential Model of Exocrine Gland Senescence. Int J Mol Sci 2023; 24:17220. [PMID: 38139048 PMCID: PMC10743476 DOI: 10.3390/ijms242417220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 11/17/2023] [Accepted: 12/05/2023] [Indexed: 12/24/2023] Open
Abstract
Cdc42 is a small GTPase essential for the cell cycle, morphogenesis, and cell adhesion, and it is involved in the polarity of epithelial cells. However, the functional roles of Cdc42 in exocrine glands, such as the maintenance of acini and water secretion, are not yet well understood. In this study, we generated acinar-cell-specific Cdc42 conditional knockout (Cdc42cKO) mice to assess their maintenance of acinar cells and physiological functions in the salivary glands (SGs) and lacrimal glands (LGs). Our data revealed that the loss of Cdc42 altered the luminal structures to bulging structures and induced acinar cell apoptosis in both the parotid glands (PGs) and LGs of Cdc42cKO mice. Interestingly, saliva secretion in response to pilocarpine stimulation was decreased in the Cdc42cKO group, whereas tear secretion was increased. Consistent with the water secretion results, protein expression of the water channel AQP5 in acinar cells was also decreased in the PGs but conversely increased in the LGs. Moreover, the changes that increased AQP5 expression in LGs occurred in the acinar cells rather than the duct cells. The present study demonstrates that Cdc42 is involved in the structural and survival maintenance of acinar cells in SGs and LGs. On the other hand, depletion of Cdc42 caused the opposite physiological phenomena between PGs and LGs.
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Affiliation(s)
- Haruna Nagase
- Department of Pharmacology, Asahi University School of Dentistry, 1851-1 Hozumi, Mizuho, Gifu 501-0296, Japan
| | - Akiko Shitara
- Department of Pharmacology, Asahi University School of Dentistry, 1851-1 Hozumi, Mizuho, Gifu 501-0296, Japan
| | - Yuta Ohno
- Department of Pharmacology, Asahi University School of Dentistry, 1851-1 Hozumi, Mizuho, Gifu 501-0296, Japan
| | - Keitaro Satoh
- Department of Pharmacology, Meikai University School of Dentistry, 1-1 Keyakidai, Sakado, Saitama 350-0283, Japan
| | - Masanori Kashimata
- Department of Pharmacology, Asahi University School of Dentistry, 1851-1 Hozumi, Mizuho, Gifu 501-0296, Japan
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Lin JB, Chen YX, Lin NL, Li X. Upregulation of ITGB6 in primary palmar hyperhidrosis. ADV CLIN EXP MED 2023; 32:1413-1422. [PMID: 37212774 DOI: 10.17219/acem/162178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 08/23/2022] [Accepted: 03/13/2023] [Indexed: 05/23/2023]
Abstract
BACKGROUND The regulatory effect of integrin β6 (ITGB6) on sweat gland cells in primary palmar hyperhidrosis (PPH) remains unclear. OBJECTIVES This study investigated the involvement of ITGB6 in the pathogenesis of PPH. MATERIAL AND METHODS Sweat gland tissues were collected from PPH patients and healthy volunteers. The expression levels of ITGB6 in sweat gland tissues were detected with quantitative polymerase chain reaction (qPCR), western blot and immunohistochemical staining. Sweat gland cells were extracted from PPH patients, and identified with immunofluorescence staining of CEA and CK7. The expression of aquaporin 5 (AQP5) and Na-K-Cl cotransporter 1 (NKCC1) in primary sweat gland cells that overexpress ITGB6 were also detected. Through a series of bioinformatic methods, differentially expressed genes in sweat gland tissues were examined and validated via comparing PPH samples and controls. The key proteins and biological functions enriched in PPH were determined using Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses. RESULTS The ITGB6 was upregulated in sweat gland tissues of PPH patients compared to that of healthy volunteers. The CEA and CK7 were positively expressed in sweat gland cells extracted from PPH patients. The overexpression of ITGB6 upregulated AQP5 and NKCC1 protein expression in the sweat gland cells of PPH patients. A total of 562 differentially expressed mRNAs were identified using high-throughput sequencing (394 upregulated, 168 downregulated), which were mainly active in the chemokine and Wnt signaling pathways. After verification with qPCR and western blot, the overexpression of ITGB6 significantly upregulated CXCL3, CXCL5, CXCL10, and CXCL11, and downregulated Wnt2 mRNA and protein expression in sweat gland cells. CONCLUSIONS The ITGB6 is upregulated in PPH patients. It may be involved in the pathogenesis of PPH by upregulating AQP5, NKCC1, CXCL3, CXCL5, CXCL10, and CXCL11, and downregulating Wnt2 expression in sweat glands.
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Affiliation(s)
- Jian-Bo Lin
- Department of Thoracic Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Yan-Xun Chen
- Department of Thoracic Surgery, Quangang District Hospital, Quanzhou, China
| | - Nan-Long Lin
- Department of Thoracic Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Xu Li
- Department of Thoracic Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
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Zhang K, Di G, Li B, Ge H, Bai Y, Bian W, Wang D, Chen P. AQP5 deficiency promotes the senescence of lens epithelial cells through mitochondrial dysfunction. Biochem Biophys Res Commun 2023; 680:184-193. [PMID: 37742347 DOI: 10.1016/j.bbrc.2023.09.051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Revised: 09/16/2023] [Accepted: 09/19/2023] [Indexed: 09/26/2023]
Abstract
Cataract is lens opacity, which is a common blinding eye disease worldwide. Aquaporin 5 (AQP5) is expressed in the human and mouse lenses. This study aimed to investigate the underlying mechanisms of AQP5 in the senescence of lens epithelial cells (LECs). Primary LECs were isolated and cultured from Aqp5+/+ and Aqp5-/- mice. Western blot or immunofluorescence staining of p16, Ki67, MitoSOX, JC-1 and phalloidin was used in the experiments to evaluate the changes in the primary LECs. The primary Aqp5-/- LECs showed increased p16 expression and mitochondrial reactive oxygen species, decreased mitochondrial membrane potential and activity, and cytoskeletal disorders. When the cells were pretreated with Mito-TEMPO, the Aqp5-/- mice showed decreased p16 expression, reduced mitochondrial dysfunction and cytoskeletal disorders. Our results revealed that AQP5 deficiency promotes the senescence of primary LECs through mitochondrial dysfunction. This provides a new perspective for the treatment of cataracts by regulating AQP5 expression.
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Affiliation(s)
- Kaier Zhang
- Department of Human Anatomy, Histology and Embryology, School of Basic Medicine, Qingdao University, Qingdao, Shandong Province, 266071, China.
| | - Guohu Di
- Department of Human Anatomy, Histology and Embryology, School of Basic Medicine, Qingdao University, Qingdao, Shandong Province, 266071, China; Institute of Stem Cell Regeneration Medicine, School of Basic Medicine, Qingdao University, Qingdao, Shandong Province, 266071, China.
| | - Bin Li
- Department of Human Anatomy, Histology and Embryology, School of Basic Medicine, Qingdao University, Qingdao, Shandong Province, 266071, China.
| | - Huanhuan Ge
- Department of Human Anatomy, Histology and Embryology, School of Basic Medicine, Qingdao University, Qingdao, Shandong Province, 266071, China.
| | - Ying Bai
- Department of Human Anatomy, Histology and Embryology, School of Basic Medicine, Qingdao University, Qingdao, Shandong Province, 266071, China.
| | - Wenhan Bian
- Department of Human Anatomy, Histology and Embryology, School of Basic Medicine, Qingdao University, Qingdao, Shandong Province, 266071, China.
| | - Dianqiang Wang
- Qingdao Aier Eye Hospital, Qingdao, Shandong Province, 266400, China.
| | - Peng Chen
- Department of Human Anatomy, Histology and Embryology, School of Basic Medicine, Qingdao University, Qingdao, Shandong Province, 266071, China; Institute of Stem Cell Regeneration Medicine, School of Basic Medicine, Qingdao University, Qingdao, Shandong Province, 266071, China.
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Hao Y, Wang T, Hou Y, Wang X, Yin Y, Liu Y, Han N, Ma Y, Li Z, Wei Y, Feng W, Jia Z, Qi H. Therapeutic potential of Lianhua Qingke in airway mucus hypersecretion of acute exacerbation of chronic obstructive pulmonary disease. Chin Med 2023; 18:145. [PMID: 37924136 PMCID: PMC10623880 DOI: 10.1186/s13020-023-00851-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Accepted: 10/17/2023] [Indexed: 11/06/2023] Open
Abstract
BACKGROUND Lianhua Qingke (LHQK) is an effective traditional Chinese medicine used for treating acute tracheobronchitis. In this study, we evaluated the effectiveness of LHQK in managing airway mucus hypersecretion in the acute exacerbation of chronic obstructive pulmonary disease (AECOPD). METHODS The AECOPD model was established by subjecting male Wistar rats to 12 weeks of cigarette smoke (CS) exposure (80 cigarettes/day, 5 days/week for 12 weeks) and intratracheal lipopolysaccharide (LPS) exposure (200 μg, on days 1, 14, and 84). The rats were divided into six groups: control (room air exposure), model (CS + LPS exposure), LHQK (LHQK-L, LHQK-M, and LHQK-H), and a positive control group (Ambroxol). H&E staining, and AB-PAS staining were used to evaluate lung tissue pathology, inflammatory responses, and goblet cell hyperplasia. RT-qPCR, immunohistochemistry, immunofluorescence and ELISA were utilized to analyze the transcription, expression and secretion of proteins related to mucus production in vivo and in the human airway epithelial cell line NCI-H292 in vitro. To predict and screen the active ingredients of LHQK, network pharmacology analysis and NF-κB reporter system analysis were employed. RESULTS LHQK treatment could ameliorate AECOPD-triggered pulmonary structure damage, inflammatory cell infiltration, and pro-inflammatory cytokine production. AB-PAS and immunofluorescence staining with CCSP and Muc5ac antibodies showed that LHQK reduced goblet cell hyperplasia, probably by inhibiting the transdifferentiation of Club cells into goblet cells. RT-qPCR and immunohistochemistry of Muc5ac and APQ5 showed that LHQK modulated mucus homeostasis by suppressing Muc5ac transcription and hypersecretion in vivo and in vitro, and maintaining the balance between Muc5ac and AQP5 expression. Network pharmacology analysis and NF-κB luciferase reporter system analysis provided insights into the active ingredients of LHQK that may help control airway mucus hypersecretion and regulate inflammation. CONCLUSION LHQK demonstrated therapeutic effects in AECOPD by reducing inflammation, suppressing goblet cell hyperplasia, preventing Club cell transdifferentiation, reducing Muc5ac hypersecretion, and modulating airway mucus homeostasis. These findings support the clinical use of LHQK as a potential treatment for AECOPD.
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Affiliation(s)
- Yuanjie Hao
- Graduate School, Hebei Medical University, Shijiazhuang, 050017, Hebei, China
| | - Tongxing Wang
- Hebei Academy of Integrated Traditional Chinese and Western Medicine, Shijiazhuang, 050035, Hebei, China
- National Key Laboratory for Innovation and Transformation of Luobing Theory, Shijiazhuang, 050035, China
| | - Yunlong Hou
- Hebei Academy of Integrated Traditional Chinese and Western Medicine, Shijiazhuang, 050035, Hebei, China
- National Key Laboratory for Innovation and Transformation of Luobing Theory, Shijiazhuang, 050035, China
| | - Xiaoqi Wang
- Graduate School, Hebei University of Chinese Medicine, Shijiazhuan, 050090, Hebei, China
| | - Yujie Yin
- Hebei Academy of Integrated Traditional Chinese and Western Medicine, Shijiazhuang, 050035, Hebei, China
- National Key Laboratory for Innovation and Transformation of Luobing Theory, Shijiazhuang, 050035, China
| | - Yi Liu
- Graduate School, Hebei Medical University, Shijiazhuang, 050017, Hebei, China
| | - Ningxin Han
- Graduate School, Hebei Medical University, Shijiazhuang, 050017, Hebei, China
| | - Yan Ma
- Graduate School, Hebei University of Chinese Medicine, Shijiazhuan, 050090, Hebei, China
| | - Zhen Li
- Graduate School, Hebei Medical University, Shijiazhuang, 050017, Hebei, China
| | - Yaru Wei
- Graduate School, Hebei University of Chinese Medicine, Shijiazhuan, 050090, Hebei, China
| | - Wei Feng
- Hebei Academy of Integrated Traditional Chinese and Western Medicine, Shijiazhuang, 050035, Hebei, China
- National Key Laboratory for Innovation and Transformation of Luobing Theory, Shijiazhuang, 050035, China
| | - Zhenhua Jia
- Graduate School, Hebei Medical University, Shijiazhuang, 050017, Hebei, China.
- Affiliated Yiling Hospital of Hebei Medical University, Shijiazhuang, 050091, Hebei, China.
| | - Hui Qi
- Hebei Academy of Integrated Traditional Chinese and Western Medicine, Shijiazhuang, 050035, Hebei, China.
- National Key Laboratory for Innovation and Transformation of Luobing Theory, Shijiazhuang, 050035, China.
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10
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Zhang K, Di G, Bai Y, Liu A, Bian W, Chen P. Aquaporin 5 in the eye: Expression, function, and roles in ocular diseases. Exp Eye Res 2023; 233:109557. [PMID: 37380095 DOI: 10.1016/j.exer.2023.109557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 05/26/2023] [Accepted: 06/25/2023] [Indexed: 06/30/2023]
Abstract
As a water channel protein, aquaporin 5 (AQP5) is essential for the maintenance of the normal physiological functions of ocular tissues. This review provides an overview of the expression and function of AQP5 in the eye and discusses their role in related eye diseases. Although AQP5 plays a vital role in ocular functions, such as maintaining corneal and lens transparency, regulating water movement, and maintaining homeostasis, some of its functions in ocular tissues are still unclear. Based on the key role of AQP5 in eye function, this review suggests that in the future, eye diseases may be treated by regulating the expression of aquaporin.
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Affiliation(s)
- Kaier Zhang
- Department of Human Anatomy, Histology and Embryology, School of Basic Medicine, Qingdao University, Qingdao, 266071, Shandong Province, China
| | - Guohu Di
- Department of Human Anatomy, Histology and Embryology, School of Basic Medicine, Qingdao University, Qingdao, 266071, Shandong Province, China
| | - Ying Bai
- Department of Human Anatomy, Histology and Embryology, School of Basic Medicine, Qingdao University, Qingdao, 266071, Shandong Province, China
| | - Anxu Liu
- Department of Human Anatomy, Histology and Embryology, School of Basic Medicine, Qingdao University, Qingdao, 266071, Shandong Province, China
| | - Wenhan Bian
- Department of Human Anatomy, Histology and Embryology, School of Basic Medicine, Qingdao University, Qingdao, 266071, Shandong Province, China
| | - Peng Chen
- Department of Human Anatomy, Histology and Embryology, School of Basic Medicine, Qingdao University, Qingdao, 266071, Shandong Province, China; Clinical Laboratory, Qingdao Central Hospital, The Second Affiliated Hospital of Medical College of Qingdao University, Qingdao, 266042, Shandong Province, China.
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11
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Chen JF, Lin M, Li X, Lin JB. PAI1 inhibits the pathogenesis of primary focal hyperhidrosis by targeting CHRNA1. Orphanet J Rare Dis 2023; 18:205. [PMID: 37542348 PMCID: PMC10403875 DOI: 10.1186/s13023-023-02808-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 07/05/2023] [Indexed: 08/06/2023] Open
Abstract
BACKGROUND Primary focal hyperhidrosis (PFH) may be attributed to the up-regulation of the cholinergic receptor nicotinic alpha 1 subunit (CHRNA1) in eccrine glands. Plasminogen activator inhibitor-1 (PAI1, encoded by SERPINE1) is reported to inhibit the expression of CHRNA1, while the role of PAI1 in hyperhidrosis is unknown. METHODS Serpine1 KO mice, Serpine1-Tg mice, and wild type BALB/c mice were intraperitoneally injected with pilocarpine hydrochloride to induce PFH. Cisatracurium (CIS, antagonist of CHRNA1) or PAI-039 (small-molecule inhibitor of PAI1) was pre-administrated before the induction of hyperhidrosis. On the other hand, Chrna1-expressing AAV was constructed and administered to Serpine1-Tg mice with hydrochloride stimulation. Hydrochloride-related biomarkers, such as acetylcholine (ACH) in the serum, calcium voltage-gated channel subunit alpha1 C (CACNA1C), and aquaporin 5 (AQP5) in sweat glands of mice were assayed with ELISA, RT-PCR, and Western blot. RESULTS The administration of PAI-039 or Pai1 knock-out increased Chrna1 expression, sweat secretion, and hydrochloride-related biomarkers (ACH, CACNA1C, and AQP5) expression. On the other hand, CIS administration diminished the strengthened hyperhidrosis phenotype induced by Pai1 knock-out with decreased sweat gland secretion. CONCLUSION PAI1 inhibits CHRNA1-mediated hydrochloride-induced hyperhidrosis, with decreased sweat gland secretion and diminished ACH, AQP5, and CACNA1C expression. These results indicate the potential to utilize PAI1 to alleviate PFH.
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Affiliation(s)
- Jian-Feng Chen
- Department of Thoracic Surgery, the First Affiliated Hospital of Fujian Medical University, No. 20 Chazhong Road, Fuzhou, 350005, Fujian, China
| | - Min Lin
- Department of Thoracic Surgery, the First Affiliated Hospital of Fujian Medical University, No. 20 Chazhong Road, Fuzhou, 350005, Fujian, China
| | - Xu Li
- Department of Thoracic Surgery, the First Affiliated Hospital of Fujian Medical University, No. 20 Chazhong Road, Fuzhou, 350005, Fujian, China
| | - Jian-Bo Lin
- Department of Thoracic Surgery, the First Affiliated Hospital of Fujian Medical University, No. 20 Chazhong Road, Fuzhou, 350005, Fujian, China.
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12
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Petrova RS, Nair N, Bavana N, Chen Y, Schey KL, Donaldson PJ. Modulation of Membrane Trafficking of AQP5 in the Lens in Response to Changes in Zonular Tension Is Mediated by the Mechanosensitive Channel TRPV1. Int J Mol Sci 2023; 24:9080. [PMID: 37240426 PMCID: PMC10219244 DOI: 10.3390/ijms24109080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 05/16/2023] [Accepted: 05/18/2023] [Indexed: 05/28/2023] Open
Abstract
In mice, the contraction of the ciliary muscle via the administration of pilocarpine reduces the zonular tension applied to the lens and activates the TRPV1-mediated arm of a dual feedback system that regulates the lens' hydrostatic pressure gradient. In the rat lens, this pilocarpine-induced reduction in zonular tension also causes the water channel AQP5 to be removed from the membranes of fiber cells located in the anterior influx and equatorial efflux zones. Here, we determined whether this pilocarpine-induced membrane trafficking of AQP5 is also regulated by the activation of TRPV1. Using microelectrode-based methods to measure surface pressure, we found that pilocarpine also increased pressure in the rat lenses via the activation of TRPV1, while pilocarpine-induced removal of AQP5 from the membrane observed using immunolabelling was abolished by pre-incubation of the lenses with a TRPV1 inhibitor. In contrast, mimicking the actions of pilocarpine by blocking TRPV4 and then activating TRPV1 resulted in sustained increase in pressure and the removal of AQP5 from the anterior influx and equatorial efflux zones. These results show that the removal of AQP5 in response to a decrease in zonular tension is mediated by TRPV1 and suggest that regional changes to PH2O contribute to lens hydrostatic pressure gradient regulation.
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Affiliation(s)
- Rosica S. Petrova
- Department of Physiology, School of Medical Sciences, New Zealand National Eye Center, Faculty of Medical and Health Sciences, The University of Auckland, Auckland 1023, New Zealand
| | - Nikhil Nair
- Department of Physiology, School of Medical Sciences, New Zealand National Eye Center, Faculty of Medical and Health Sciences, The University of Auckland, Auckland 1023, New Zealand
| | - Nandini Bavana
- Department of Physiology, School of Medical Sciences, New Zealand National Eye Center, Faculty of Medical and Health Sciences, The University of Auckland, Auckland 1023, New Zealand
| | - Yadi Chen
- Department of Physiology, School of Medical Sciences, New Zealand National Eye Center, Faculty of Medical and Health Sciences, The University of Auckland, Auckland 1023, New Zealand
| | - Kevin L. Schey
- Department of Biochemistry, Mass Spectrometry Research Center, Vanderbilt University, Nashville, TN 37232, USA
| | - Paul J. Donaldson
- Department of Physiology, School of Medical Sciences, New Zealand National Eye Center, Faculty of Medical and Health Sciences, The University of Auckland, Auckland 1023, New Zealand
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13
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Matsuyama K, Fujikawa K, Matsuki-Fukushima M, Shibato J, Kimura A, Yamashita M, Takenoya F, Rakwal R, Shioda S, Nonaka N. Ontogenetic development of the water channel protein AQP5 in mouse salivary gland tissue. Cell Tissue Res 2023:10.1007/s00441-023-03762-w. [PMID: 36918428 DOI: 10.1007/s00441-023-03762-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 03/03/2023] [Indexed: 03/15/2023]
Abstract
Aquaporins (AQP) are a family of channel proteins expressed in the cell membranes of many tissue types. As water channels, they enable the selective permeation of water molecules and thus play an important role in water transport through the plasma membrane. There are numerous AQP sub-types, among which AQP5 is expressed in the salivary glands. The expression and localization of AQP5 in different salivary gland cells of animal models during fetal development and after birth have enabled the physiological functions of AQP5 to be elucidated, but subsequent changes in the adult phase are unknown. It is known that saliva production tends to decrease with age, but it is unclear how AQP5 activity and function changes developmentally, from young to old including gender differences. In the present study, we sampled the parotid, submandibular, and sublingual glands from young (8 weeks old) and aged (12 months old) mice of both sexes to study the effects of age- and sex-related differences in AQP5 expression. Positive fluorescence immunostaining was detected in the membranes of cells from all gland types, and this was enhanced in juvenile mice from both sexes. Western blot analyses revealed that AQP5 expression levels tended to decrease with age in both male and female animals. Conversely, AQP5 gene expression levels did not change significantly with aging, but were found to be high in submandibular gland cells of both sexes, in parotid gland cells of older female mice, and in the sublingual gland cells of young male mice.
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Affiliation(s)
- Kayo Matsuyama
- Department of Oral Anatomy and Developmental Biology, Showa University School of Dentistry, Shinagawa-ku, Tokyo, 142-8555, Japan
| | - Kaoru Fujikawa
- Department of Oral Anatomy and Developmental Biology, Showa University School of Dentistry, Shinagawa-ku, Tokyo, 142-8555, Japan
| | - Miwako Matsuki-Fukushima
- Department of Oral Anatomy and Developmental Biology, Showa University School of Dentistry, Shinagawa-ku, Tokyo, 142-8555, Japan
| | - Junko Shibato
- Department of Functional Morphology, Shonan University of Medical Sciences, 16-48 Kamishinano, Totsuka-ku, Yokohama, 244-0806, Japan
| | - Ai Kimura
- Department of Functional Morphology, Shonan University of Medical Sciences, 16-48 Kamishinano, Totsuka-ku, Yokohama, 244-0806, Japan
| | - Michio Yamashita
- Department of Physiology and Molecular Sciences, Hoshi University, Shinagawa-ku, Tokyo, Japan
| | - Fumiko Takenoya
- Department of Physiology and Molecular Sciences, Hoshi University, Shinagawa-ku, Tokyo, Japan
| | - Randeep Rakwal
- Faculty of Health and Sport Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, Japan
| | - Seiji Shioda
- Department of Functional Morphology, Shonan University of Medical Sciences, 16-48 Kamishinano, Totsuka-ku, Yokohama, 244-0806, Japan
| | - Naoko Nonaka
- Department of Oral Anatomy and Developmental Biology, Showa University School of Dentistry, Shinagawa-ku, Tokyo, 142-8555, Japan.
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14
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Edamana S, Login FH, Riishede A, Dam VS, Tramm T, Nejsum LN. The cell polarity protein Scribble is downregulated by the water channel aquaporin-5 in breast cancer cells. Am J Physiol Cell Physiol 2023; 324:C307-C319. [PMID: 36468842 DOI: 10.1152/ajpcell.00311.2022] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Breast carcinomas originate from cells in the terminal duct-lobular unit. Carcinomas are associated with increased cell proliferation and migration, altered cellular adhesion, as well as loss of epithelial polarity. In breast cancer, aberrant and high levels of aquaporin-5 (AQP5) are associated with increased metastasis, poor prognosis, and cancer recurrence. AQP5 increases the proliferation and migration of cancer cells, and ectopic expression of AQP5 in normal epithelial cells reduces cell-cell adhesion and increases cell detachment and dissemination from migrating cell sheets, the latter via AQP5-mediated activation of the Ras pathway. Here, we investigated if AQP5 also affects cellular polarity by examining the relationship between the essential polarity protein Scribble and AQP5. In tissue samples from invasive lobular and ductal carcinomas, the majority of cells with high AQP5 expression displayed low Scribble levels, indicating an inverse relationship. Probing for interactions via a Glutathione S-transferase pull-down experiment revealed that AQP5 and Scribble interacted. Moreover, overexpression of AQP5 in the breast cancer cell line MCF7 reduced both size and circularity of three-dimensional (3-D) spheroids and induced cell detachment and dissemination from migrating cell sheets. In addition, Scribble levels were reduced. An AQP5 mutant cell line, which cannot activate Ras (AQP5S156A) signaling, displayed unchanged spheroid size and circularity and an intermediate level of Scribble, indicating that the effect of AQP5 on Scribble is, at least in part, dependent on AQP5-mediated activation of Ras. Thus, our results suggest that high AQP5 expression negatively regulates the essential polarity protein Scribble and thus, can affect cellular polarity in breast cancer.
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Affiliation(s)
- Sarannya Edamana
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Frédéric H Login
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Andreas Riishede
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Vibeke S Dam
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Trine Tramm
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark.,Department of Pathology, Aarhus University Hospital, Aarhus, Denmark
| | - Lene N Nejsum
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
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15
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Wang Y, Di G, Zhang K, Bai Y, Cao X, Zhao H, Wang D, Chen P. Loss of aquaporin 5 contributes to the corneal epithelial pathogenesis via Wnt/β-catenin pathway. FASEB J 2023; 37:e22776. [PMID: 36688817 DOI: 10.1096/fj.202201503r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Revised: 12/08/2022] [Accepted: 01/05/2023] [Indexed: 01/24/2023]
Abstract
AQP5 plays a crucial role in maintaining corneal transparency and the barrier function of the cornea. Here, we found that in the corneas of Aqp5-/- mice at older than 6 months, loss of AQP5 significantly increased corneal neovascularization, inflammatory cell infiltration, and corneal haze. The results of immunofluorescence staining showed that upregulation of K1, K10, and K14, and downregulation of K12 and Pax6 were detected in Aqp5-/- cornea and primary corneal epithelial cells. Loss of AQP5 aggravated wound-induced corneal neovascularization, inflammation, and haze. mRNA sequencing, western blotting, and qRT-PCR showed that Wnt2 and Wnt6 were significantly decreased in Aqp5-/- corneas and primary corneal epithelial cells, accompanied by decreased aggregation in the cytoplasm and nucleus of β-catenin. IIIC3 significantly suppressed corneal neovascularization, inflammation, haze, and maintained corneal transparent epithelial in Aqp5-/- corneas. We also found that pre-stimulated Aqp5-/- primary corneal epithelial cells with IIIC3 caused the decreased expression of K1, K10, and K14, the increased expression of K12, Pax6, and increased aggregation in the cytoplasm and nucleus of β-catenin. These findings revealed that AQP5 may regulate corneal epithelial homeostasis and function through the Wnt/β-catenin signaling pathway. Together, we uncovered a possible role of AQP5 in determining corneal epithelial cell fate and providing a potential therapeutic target for corneal epithelial dysfunction.
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Affiliation(s)
- Yihui Wang
- Department of Human Anatomy, Histology and Embryology, School of Basic Medicine, Qingdao University, Qingdao, China
| | - Guohu Di
- Department of Human Anatomy, Histology and Embryology, School of Basic Medicine, Qingdao University, Qingdao, China
- Institute of Stem Cell Regeneration Medicine, School of Basic Medicine, Qingdao University, Qingdao, China
| | - Kaier Zhang
- Department of Human Anatomy, Histology and Embryology, School of Basic Medicine, Qingdao University, Qingdao, China
| | - Ying Bai
- Department of Human Anatomy, Histology and Embryology, School of Basic Medicine, Qingdao University, Qingdao, China
| | - Xin Cao
- Department of Human Anatomy, Histology and Embryology, School of Basic Medicine, Qingdao University, Qingdao, China
| | - Hui Zhao
- The 971 Hospital of the Chinese People's Liberation Army Navy, Qingdao, China
| | - Dianqiang Wang
- Department of Ophthalmology, Qingdao Aier Eye Hospital, Qingdao, China
| | - Peng Chen
- Department of Human Anatomy, Histology and Embryology, School of Basic Medicine, Qingdao University, Qingdao, China
- Institute of Stem Cell Regeneration Medicine, School of Basic Medicine, Qingdao University, Qingdao, China
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16
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Wang D, Deng B, Cheng L, Li J, Zhang J, Zhang X, Guo X, Yan T, Yue X, An Y, Zhang B, Yang W, Xie J, Wang R. A novel and low-toxic peptide DR3penA alleviates pulmonary fibrosis by regulating the MAPK/miR-23b-5p/ AQP5 signaling axis. Acta Pharm Sin B 2023; 13:722-738. [PMID: 36873181 PMCID: PMC9979266 DOI: 10.1016/j.apsb.2022.09.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Revised: 08/19/2022] [Accepted: 08/25/2022] [Indexed: 11/01/2022] Open
Abstract
Pulmonary fibrosis (PF) is a pathological change caused by repeated injuries and repair dysfunction of the alveolar epithelium. Our previous study revealed that the residues Asn3 and Asn4 of peptide DR8 (DHNNPQIR-NH2) could be modified to improve stability and antifibrotic activity, and the unnatural hydrophobic amino acids α-(4-pentenyl)-Ala and d-Ala were considered in this study. DR3penA (DHα-(4-pentenyl)-ANPQIR-NH2) was verified to have a longer half-life in serum and to significantly inhibit oxidative damage, epithelial-mesenchymal transition (EMT) and fibrogenesis in vitro and in vivo. Moreover, DR3penA has a dosage advantage over pirfenidone through the conversion of drug bioavailability under different routes of administration. A mechanistic study revealed that DR3penA increased the expression of aquaporin 5 (AQP5) by inhibiting the upregulation of miR-23b-5p and the mitogen-activated protein kinase (MAPK) pathway, indicating that DR3penA may alleviate PF by regulating MAPK/miR-23b-5p/AQP5. Safety evaluation showed that DR3penA is a peptide drug without obvious toxicity or acute side effects and has significantly improved safety compared to DR8. Thus, our findings suggest that DR3penA, as a novel and low-toxic peptide, has the potential to be a leading compound for PF therapy, which provides a foundation for the development of peptide drugs for fibrosis-related diseases.
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Affiliation(s)
- Dan Wang
- Institute of Materia Medica and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100050, China.,Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Bochuan Deng
- Institute of Materia Medica and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100050, China.,Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Lu Cheng
- Institute of Materia Medica and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100050, China.,Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Jieru Li
- Institute of Materia Medica and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100050, China.,Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Jiao Zhang
- Institute of Materia Medica and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100050, China.,Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Xiang Zhang
- Institute of Materia Medica and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100050, China.,Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Xiaomin Guo
- Institute of Materia Medica and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100050, China.,Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Tiantian Yan
- Institute of Materia Medica and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100050, China.,Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Xin Yue
- Institute of Materia Medica and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100050, China.,Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Yingying An
- Institute of Materia Medica and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100050, China.,Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Bangzhi Zhang
- Institute of Materia Medica and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100050, China.,Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Wenle Yang
- Institute of Materia Medica and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100050, China.,Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Junqiu Xie
- Institute of Materia Medica and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100050, China.,Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Rui Wang
- Institute of Materia Medica and Research Unit of Peptide Science, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100050, China.,Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
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17
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Jaskiewicz L, Romaszko-Wojtowicz A, Doboszynska A, Skowronska A. The Role of Aquaporin 5 ( AQP5) in Lung Adenocarcinoma: A Review Article. Cells 2023; 12:cells12030468. [PMID: 36766810 PMCID: PMC9913646 DOI: 10.3390/cells12030468] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 01/27/2023] [Accepted: 01/29/2023] [Indexed: 02/04/2023] Open
Abstract
Aquaporins (AQPs) are selective, transmembrane proteins, which are primarily responsible for the transport of water and small molecules. They have been demonstrated to play a key role in the development and progression of cancer. Lung adenocarcinoma is the most common primary lung cancer diagnosed in patients in Europe and the USA. The research done so far has provided firm evidence that some AQPs can be biomarkers for various diseases. The objective of this review article is to present a potential role of AQP5 in the development of lung adenocarcinoma. Original papers discussing the involvement of AQP5 in carcinogenesis and containing relevant clinical data were identified. In order to analyze the research material in accordance with PRISMA guidelines, a systematic search of the ScienceDirect, Web of Science, and Pubmed databases was conducted. Out of the total number of 199 papers identified, 14 original articles were subject to analysis. This article presents the pathophysiological role of AQP5 in the biology of lung adenocarcinoma as well as its prognostic value. The analysis substantiates the conclusion that the prognostic value of AQP5 in lung cancer requires further research. Another aim of this paper is to disseminate knowledge about AQPs among clinicians.
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Affiliation(s)
- Lukasz Jaskiewicz
- Department of Human Physiology and Pathophysiology, School of Medicine, Collegium Medicum, University of Warmia and Mazury in Olsztyn, 10-082 Olsztyn, Poland
- Correspondence: (L.J.); (A.R.-W.)
| | - Anna Romaszko-Wojtowicz
- Department of Pulmonology, School of Public Health, Collegium Medicum, University of Warmia and Mazury in Olsztyn, 10-719 Olsztyn, Poland
- Correspondence: (L.J.); (A.R.-W.)
| | - Anna Doboszynska
- Department of Pulmonology, School of Public Health, Collegium Medicum, University of Warmia and Mazury in Olsztyn, 10-719 Olsztyn, Poland
| | - Agnieszka Skowronska
- Department of Human Physiology and Pathophysiology, School of Medicine, Collegium Medicum, University of Warmia and Mazury in Olsztyn, 10-082 Olsztyn, Poland
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18
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Aubin Vega M, Girault A, Adam D, Chebli J, Privé A, Maillé É, Robichaud A, Brochiero E. Impact of KvLQT1 potassium channel modulation on alveolar fluid homeostasis in an animal model of thiourea-induced lung edema. Front Physiol 2023; 13:1069466. [PMID: 36699692 PMCID: PMC9868633 DOI: 10.3389/fphys.2022.1069466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 12/19/2022] [Indexed: 01/11/2023] Open
Abstract
Alveolar ion and fluid absorption is essential for lung homeostasis in healthy conditions as well as for the resorption of lung edema, a key feature of acute respiratory distress syndrome. Liquid absorption is driven by active transepithelial sodium transport, through apical ENaC Na+ channels and basolateral Na+/K+-ATPase. Our previous work unveiled that KvLQT1 K+ channels also participate in the control of Na+/liquid absorption in alveolar epithelial cells. Our aim was to further investigate the function of KvLQT1 channels and their interplay with other channels/transporters involved in ion/liquid transport in vivo using adult wild-type (WT) and KvLQT1 knock-out (KO) mice under physiological conditions and after thiourea-induced lung edema. A slight but significant increase in water lung content (WLC) was observed in naïve KvLQT1-KO mice, relative to WT littermates, whereas lung function was generally preserved and histological structure unaltered. Following thiourea-induced lung edema, KvLQT1-KO did not worsen WLC or lung function. Similarly, lung edema was not aggravated by the administration of a KvLQT1 inhibitor (chromanol). However, KvLQT1 activation (R-L3) significantly reduced WLC in thiourea-challenged WT mice. The benefits of R-L3 were prevented in KO or chromanol-treated WT mice. Furthermore, R-L3 treatment had no effect on thiourea-induced endothelial barrier alteration but restored or enhanced the levels of epithelial alveolar AQP5, Na+/K+-ATPase, and ENaC expressions. Altogether, the results indicate the benefits of KvLQT1 activation in the resolution of lung edema, probably through the observed up-regulation of epithelial alveolar channels/transporters involved in ion/water transport.
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Affiliation(s)
- Mélissa Aubin Vega
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC, Canada,Département de Médecine, Université de Montréal, Montréal, QC, Canada
| | - Alban Girault
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC, Canada,Département de Médecine, Université de Montréal, Montréal, QC, Canada,Laboratoire de Physiologie Cellulaire et Moléculaire (LPCM), Amiens, France
| | - Damien Adam
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC, Canada,Département de Médecine, Université de Montréal, Montréal, QC, Canada
| | - Jasmine Chebli
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC, Canada,Département de Médecine, Université de Montréal, Montréal, QC, Canada
| | - Anik Privé
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC, Canada
| | - Émilie Maillé
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC, Canada
| | | | - Emmanuelle Brochiero
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC, Canada,Département de Médecine, Université de Montréal, Montréal, QC, Canada,*Correspondence: Emmanuelle Brochiero,
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19
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Zhao R, He B, Bie Q, Cao J, Lu H, Zhang Z, Liang J, Wei L, Xiong H, Zhang B. AQP5 complements LGR5 to determine the fates of gastric cancer stem cells through regulating ULK1 ubiquitination. J Exp Clin Cancer Res 2022; 41:322. [PMID: 36372898 PMCID: PMC9661769 DOI: 10.1186/s13046-022-02532-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 10/29/2022] [Indexed: 11/15/2022]
Abstract
BACKGROUND Cancer stem cells (CSCs) are regarded as the "seed cells" for tumorigenesis, metastasis, recurrence and drug resistance. However, specific surface markers of CSCs of different origins have not been documented. METHODS Single-cell sequencing was used to analyze the highly expressed genes in cancer stem cells of gastric cancer patients, and it was verified that AQP5 was specifically highly expressed in gastric cancer stem cells (GC-CSCs) in vivo and in vitro. The effect of AQP5-promoting LGR5 on the malignant biological function of GC-CSCs was investigated. The mechanism by which AQP5 affects GC-CSCs was explored through transcriptome sequencing, proteomic detection, mass spectrometry, etc. RESULTS: We report the identification and validation of AQP5 as a potentially specific surface marker of GC-CSCs. AQP5 was significantly upregulated in CSCs isolated from gastric cancer patients and in spheroid cells, and AQP5 was coexpressed with the canonical stem marker LGR5. Biologically, AQP5 promoted the sphere formation, proliferation, migration and invasion of GC cells in vitro and enhanced tumorigenesis in vivo. Furthermore, AQP5 coordinated with LGR5 and synergistically promoted the tumorigenesis of GC-CSCs. At the mechanistic level, AQP5 activated autophagy by inducing the LC3I/LC3II transformation in GC-CSCs, which was crucial for the biological functions of AQP5. Finally, we demonstrated that AQP5 recruited the E3 ligase TRIM21 to the key autophagy protein ULK1 and induced the K63-mediated ubiquitination of ULK1. CONCLUSIONS We elucidate a novel surface marker, AQP5, which is specifically expressed by GC-CSCs. Furthermore, our study creates a link between AQP5 and LGR5 and highlights the necessity of targeting both surface markers simultaneously as a promising approach for the treatment of gastric cancer patients.
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Affiliation(s)
- Rou Zhao
- grid.449428.70000 0004 1797 7280Department of Laboratory Medicine, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, Shandong People’s Republic of China
| | - Baoyu He
- grid.449428.70000 0004 1797 7280Department of Laboratory Medicine, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, Shandong People’s Republic of China
| | - Qingli Bie
- grid.449428.70000 0004 1797 7280Department of Laboratory Medicine, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, Shandong People’s Republic of China
| | - Jinghe Cao
- grid.449428.70000 0004 1797 7280Department of Laboratory Medicine, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, Shandong People’s Republic of China
| | - Haoran Lu
- grid.449428.70000 0004 1797 7280Department of Hepatobiliary Surgery, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, Shandong People’s Republic of China
| | - Zhixin Zhang
- grid.449428.70000 0004 1797 7280Department of Gastrointestinal Surgery, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, Shandong People’s Republic of China
| | - Jing Liang
- grid.449428.70000 0004 1797 7280Department of Laboratory Medicine, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, Shandong People’s Republic of China
| | - Li Wei
- grid.449428.70000 0004 1797 7280Department of Laboratory Medicine, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, Shandong People’s Republic of China
| | - Huabao Xiong
- grid.449428.70000 0004 1797 7280Institute of Immunology and Molecular Medicine, Jining Medical University, Jining, Shandong People’s Republic of China
| | - Bin Zhang
- grid.449428.70000 0004 1797 7280Department of Laboratory Medicine, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, Shandong People’s Republic of China ,grid.449428.70000 0004 1797 7280Institute of Forensic Medicine and Laboratory Medicine, Jining Medical University, Jining, Shandong People’s Republic of China
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20
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Kemény KK, Ducza E. Physiological Cooperation between Aquaporin 5 and TRPV4. Int J Mol Sci 2022; 23:11634. [PMID: 36232935 DOI: 10.3390/ijms231911634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 09/15/2022] [Accepted: 09/27/2022] [Indexed: 11/06/2022] Open
Abstract
Aquaporins—among them, AQP5—are responsible for transporting water across biological membranes, which is an important process in all living organisms. The transient receptor potential channel 4 (TRPV4) is a cation channel that is mostly calcium-permeable and can also be activated by osmotic stimuli. It plays a role in a number of different functions in the body, e.g., the development of bones and cartilage, and it is involved in the body’s osmoregulation, the generation of certain types of sensation (pain), and apoptosis. Our earlier studies on the uterus and the literature data aroused our interest in the physiological role of the cooperation of AQP5 and TRPV4. In this review, we focus on the co-expression and cooperation of AQP5 and TRPV4 in the lung, salivary glands, uterus, adipose tissues, and lens. Understanding the cooperation between AQP5 and TRPV4 may contribute to the development of new drug candidates and the therapy of several disorders (e.g., preterm birth, cataract, ischemia/reperfusion-induced edema, exercise- or cold-induced asthma).
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21
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Shchagina O, Fedotov V, Markova T, Shatokhina O, Ryzhkova O, Fedotova T, Polyakov A. Palmoplantar Keratoderma: A Molecular Genetic Analysis of Family Cases. Int J Mol Sci 2022; 23:ijms23179576. [PMID: 36076978 PMCID: PMC9455982 DOI: 10.3390/ijms23179576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 08/14/2022] [Accepted: 08/17/2022] [Indexed: 11/16/2022] Open
Abstract
Palmoplantar keratoderma is a clinically polymorphic disorder with a heterogeneous etiology characterized by marked hyperkeratotic lesions on the surface of palms and soles. Hereditary forms of palmoplantar keratoderma usually have autosomal dominant inheritance and are caused by mutations in dozens of genes, most of which belong to the keratin family. We carried out clinical and molecular genetic analysis of the affected and healthy members of four families with autosomal dominant palmoplantar keratoderma. In three out of four family cases of autosomal dominant palmoplantar keratoderma, the following molecular genetic causes were established: in two families—previously non-described missense mutations in the AQP5 gene (NM_001651.4): c.369C>G (p.(Asn123Lys)) and c.103T>G (p.(Trp35Gly)); in one family—a described splice site mutation in the KRT9 gene (NM_000226.4): c.31T>G. In one family, the possible cause of palmoplantar keratoderma was detected—a variant in the KRT1 gene (NM_006121.4): c.931G>A (p.(Glu311Lys)).
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Affiliation(s)
- Olga Shchagina
- Research Centre for Medical Genetics, Moskvorechye St., 1, 115522 Moscow, Russia
- Correspondence:
| | - Valeriy Fedotov
- Voronezh Regional Clinical Hospital №1, Moscow Avenue, 151, 394066 Voronezh, Russia
| | - Tatiana Markova
- Research Centre for Medical Genetics, Moskvorechye St., 1, 115522 Moscow, Russia
| | - Olga Shatokhina
- Research Centre for Medical Genetics, Moskvorechye St., 1, 115522 Moscow, Russia
| | - Oksana Ryzhkova
- Research Centre for Medical Genetics, Moskvorechye St., 1, 115522 Moscow, Russia
| | - Tatiana Fedotova
- Voronezh Regional Clinical Hospital №1, Moscow Avenue, 151, 394066 Voronezh, Russia
| | - Aleksander Polyakov
- Research Centre for Medical Genetics, Moskvorechye St., 1, 115522 Moscow, Russia
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22
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Chen G, Song H, Yang Z, Du T, Zheng Y, Lu Z, Zhang K, Wei D. AQP5 Is a Novel Prognostic Biomarker in Pancreatic Adenocarcinoma. Front Oncol 2022; 12:890193. [PMID: 35619903 PMCID: PMC9128544 DOI: 10.3389/fonc.2022.890193] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Accepted: 04/04/2022] [Indexed: 12/23/2022] Open
Abstract
Background Pancreatic adenocarcinoma (PAAD) is a highly malignant tumor with a poor prognosis. The identification of effective molecular markers is of great significance for diagnosis and treatment. Aquaporins (AQPs) are a family of water channel proteins that exhibit several properties and play regulatory roles in human carcinogenesis. However, the association between Aquaporin-5 (AQP5) expression and prognosis and tumor-infiltrating lymphocytes in PAAD has not been reported. Methods AQP5 mRNA expression, methylation, and protein expression data in PAAD were analyzed using GEPIA, UALCAN, HAP, METHSURV, and UCSC databases. AQP5 expression in PAAD patients and cell lines from our cohort was examined using immunohistochemistry and Western blotting. The LinkedOmics database was used to study signaling pathways related to AQP5 expression. TIMER and TISIDB were used to analyze correlations among AQP5, tumor-infiltrating immune cells, and immunomodulators. Survival was analyzed using TCGA and Kaplan-Meier Plotter databases. Results In this study, we investigated AQP5 expression in PAAD and determined whether the expression of AQP5 is a strong prognostic biomarker for PAAD. We searched and analyzed public cancer databases (GEO, TCGA, HAP, UALCAN, GEPIA, etc.) to conclude that AQP5 expression levels were upregulated in PAAD. Kaplan-Meier curve analysis showed that high AQP5 expression positively correlated with poor prognosis. Using TIMER and TISIDB, we found that the expression of AQP5 was associated with different tumor-infiltrating immune cells, especially macrophages. We found that hypomethylation of the AQP5 promoter region was responsible for its high expression in PAAD. Conclusions AQP5 can serve as a novel biomarker to predict prognosis and immune infiltration in PAAD.
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Affiliation(s)
- Guo Chen
- Department of Biopharmaceuticals, School of Pharmacy, Air Force Medical University, Xi’an, China
| | - Haiyang Song
- Department of Interventional Therapy, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, China
| | - Zelong Yang
- Department of Hepatobiliary Surgery, Xijing Hospital, Air Force Medical University, Xi’an, China
| | - Tianshu Du
- People’s Liberation Army (PLA) of Institute of Orthopedics Xijing Hospital, Air Force Medical University, Xi’an, China
| | - Yu Zheng
- Department of Urology, Xijing Hospital, Air Force Military Medical University, Xi’an, China
- Medical Innovation Center, Fourth Military Medical Univeristy, Xi’an, China
| | - Zifan Lu
- Department of Biopharmaceuticals, School of Pharmacy, Air Force Medical University, Xi’an, China
| | - Kunpeng Zhang
- Department of Catheterization Room, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, China
| | - Di Wei
- Department of Urology, Xijing Hospital, Air Force Military Medical University, Xi’an, China
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23
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Yu Y, Wang M, Yu X, Yan Y, Yu B, Zhang D. Targeting Forkhead box O1-aquaporin 5 axis mitigates neuropathic pain in a CCI rat model through inhibiting astrocytic and microglial activation. Bioengineered 2022; 13:8567-8580. [PMID: 35324416 PMCID: PMC9161847 DOI: 10.1080/21655979.2022.2053032] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
Abstract
Forkhead box O1 (FoxO1) is a critical molecule in modulating cell growth, differentiation and metabolism, acting as a vital transcription factor. This study explored the role of FoxO1 in chronic constriction injury (CCI)-induced neuropathic pain (NP). Microglial and astrocyte activation was achieved with lipopolysaccharide (LPS, 100 ng/mL) to establish an in-vitro NP model. Morphological alterations in LPS-induced microglia and astrocytes were assayed by light microscopy. The levels of inflammatory cytokines and proteins in microglia and astrocytes were gauged by enzyme-linked immunosorbent assay (ELISA), and Western blot (WB). The CCI-induced NP rat model was constructed for investigating the FoxO1-AQP5 axis in NP. LPS markedly expanded the expression of inflammatory factors and boosted the expression of FoxO1 and AQP5 in microglia and astrocytes. Inhibition of FoxO1 or AQP5 dramatically decreased the LPS-induced inflammation in microglia and astrocytes. In vivo, CCI exacerbated the inflammatory response and NP symptoms and substantially raised the contents of FoxO1 and AQP5 in rats' spinal cord tissues. Intrathecal administration of the Sirt1 agonist Resveratrol abated CCI-induced activation of FoxO1 and AQP5, abrogated CCI-induced mechanical hyperalgesia and thermal hyperalgesia, depressed microglial and astrocyte activation, and declined the generation of pro-inflammatory mediators in spinal cord tissues. Mechanistically, blocking the FoxO1-AQP5 pathway inactivated the ERK and p38 MAPK pathways. Suppressing the FoxO1-AQP5 axis alleviated CCI-induced NP and inflammatory responses by modulating the ERK and p38 MAPK signaling pathways.
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Affiliation(s)
- Yaoping Yu
- Department of Pain, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Meng Wang
- Department of Pain, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Xiao Yu
- Department of Orthopedics, HwaMei Hospital, University of Chinese Academy of Sciences, Ningbo, China
| | - Yi Yan
- Department of Pain, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Bo Yu
- Department of Pain, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Dayin Zhang
- Department of Pain, The First Affiliated Hospital of Nanchang University, Nanchang, China
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24
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Li N, Xu X, Yang H, Wang H, Ouyang Y, Zhou Y, Peng C, Yuan Z, He C, Zeng C, Hong J. Activation of Aquaporin 5 by carcinogenic Helicobacter pylori infection promotes epithelial-mesenchymal transition via the MEK/ERK pathway. Helicobacter 2021; 26:e12842. [PMID: 34331360 DOI: 10.1111/hel.12842] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 05/23/2021] [Accepted: 05/24/2021] [Indexed: 01/06/2023]
Abstract
BACKGROUND Helicobacter pylori (H. pylori) is a major risk factor for gastric cancer. The water channel protein Aquaporin 5 (AQP5) is involved in the tumorigenesis and progression of various cancers. In this study, we aimed to explore the role of AQP5 in H. pylori-induced gastric carcinogenesis. MATERIALS AND METHODS We collected 160 samples which inculded CNAG, IM, Dys and gastric cancer from patients who underwent endoscopy and detected the expression of AQP5. In vivo and vitro H. pylori infection models, we explored the relationship between AQP5 and H. pylori. Plasmid, siRNA and inhibitors were used to investigated the relationship between AQP5 and EMT and the role of AQP5 in H. pylori-induced gastric carcinogenesis. RESULT AQP5 expression was gradually increased in human gastric tissues with the progression of chronic nonatrophic gastritis to gastric cancer and associated with the H. pylori infection status. In vivo and in vitro studies showed that H. pylori infection induced AQP5 expression in gastric epithelial cells in a CagA-dependent manner. Knockdown of AQP5 reversed H. pylori-induced cell proliferation and invasion, and -suppressed cell apoptosis. Additionally, knockdown of AQP5 suppressed H. pylori-induced Epithelial-mesenchymal transition (EMT) phenotypes by regulating transcriptional factors, mesenchymal markers, and epithelial markers. CONCLUSIONS We explored the underlying mechanism and our results indicated that knockdown of AQP5 significantly suppressed H. pylori infection-induced phosphorylation of ERK1/2, MEK and the expression levels of downstream genes. Treatment with an ERK inhibitor suppressed the EMT induced by H. pylori infection. Taken together, this study suggest that pathogenic H. pylori infection promotes AQP5 expression to induce the EMT via the MEK/ERK signaling pathway.
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Affiliation(s)
- Nianshuang Li
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China.,Institute of Digestive Disease, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Xinbo Xu
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Hui Yang
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Huan Wang
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Yaobin Ouyang
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Yanan Zhou
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Chao Peng
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Zhenxiang Yuan
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Cong He
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Chunyan Zeng
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Junbo Hong
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
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25
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Rahmel T, Nowak H, Frisenda S, Rump K, Koos B, Schenker P, Viebahn R, Adamzik M, Bergmann L. Corrigendum: The Aquaporin 5 -1364A/C Promoter Polymorphism Is Associated With Cytomegalovirus Infection Risk in Kidney Transplant Recipients. Front Immunol 2021; 12:739229. [PMID: 34475876 PMCID: PMC8406744 DOI: 10.3389/fimmu.2021.739229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Accepted: 07/27/2021] [Indexed: 11/13/2022] Open
Affiliation(s)
- Tim Rahmel
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany
| | - Hartmuth Nowak
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany
| | - Sandra Frisenda
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany
| | - Katharina Rump
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany
| | - Björn Koos
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany
| | - Peter Schenker
- Klinik für Chirurgie, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany
| | - Richard Viebahn
- Klinik für Chirurgie, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany
| | - Michael Adamzik
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany
| | - Lars Bergmann
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany
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26
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Lee SH, Jang B, Min J, Contreras-Panta EW, Presentation KS, Delgado AG, Piazuelo MB, Choi E, Goldenring JR. Up-regulation of Aquaporin 5 Defines Spasmolytic Polypeptide-Expressing Metaplasia and Progression to Incomplete Intestinal Metaplasia. Cell Mol Gastroenterol Hepatol 2022; 13:199-217. [PMID: 34455107 DOI: 10.1016/j.jcmgh.2021.08.017] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 08/18/2021] [Accepted: 08/19/2021] [Indexed: 12/19/2022]
Abstract
BACKGROUND & AIMS Metaplasia in the stomach is highly associated with development of intestinal-type gastric cancer. Two types of metaplasias, spasmolytic polypeptide-expressing metaplasia (SPEM) and intestinal metaplasia (IM), are considered precancerous lesions. However, it remains unclear how SPEM and IM are related. Here we investigated a new lineage-specific marker for SPEM cells, aquaporin 5 (AQP5), to assist in the identification of these 2 metaplasias. METHODS Drug- or Helicobacter felis (H felis) infection-induced mouse models were used to identify the expression pattern of AQP5 in acute or chronic SPEM. Gene-manipulated mice treated with or without drug were used to investigate how AQP5 expression is regulated in metaplastic lesions. Metaplastic samples from transgenic mice and human gastric cancer patients were evaluated for AQP5 expression. Immunostaining with lineage-specific markers was used to differentiate metaplastic gland characteristics. RESULTS Our results revealed that AQP5 is a novel lineage-specific marker for SPEM cells that are localized at the base of metaplastic glands initially and expand to dominate glands after chronic H felis infection. In addition, AQP5 expression was up-regulated early in chief cell reprogramming and was promoted by interleukin 13. In humans, metaplastic corpus showed highly branched structures with AQP5-positive SPEM. Human SPEM cells strongly expressing AQP5 were present at the bases of incomplete IM glands marked by TROP2 but were absent from complete IM glands. CONCLUSIONS AQP5-expressing SPEM cells are present in pyloric metaplasia and TROP2-positive incomplete IM and may be an important component of metaplasia that can predict a higher risk for gastric cancer development.
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27
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Ding QW, Lin M. [Protein Disulfide Bonds Detected by Tagging with High Molecular Weight Maleimide Derivative]. Mol Biol (Mosk) 2021; 55:519-528. [PMID: 34097686 DOI: 10.31857/s0026898421030046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 08/14/2020] [Indexed: 11/24/2022]
Abstract
Disulfide bridges are essential for maintaining the structure and function of proteins. Traditionally, studies of the disulfide bonds require expensive equipment and high purity of the protein sample, therefore, the development of simpler techniques is warranted. Here, were present a novel protocol for the detection of disulfide bonds in proteins, which is based on the labeling reduced disulfide bridges with a high molecular weight (HMW) maleimide derivative. After irreversible blocking of free thiol groups of proteins, the labeling of new thiols released from disulfide bridges with a high-molecular-weight (HMW) maleimide derivative is performed. To confirm localization of cysteines involved in the formation of disulfide bonds, cysteine mutagenesis was conducted. For validation, aquaporin 5 (AQP5) and transient receptor potential cation channel subfamily V member 4 (TRPV4) proteins were tagged with FLAG (DYKDDDDK) on N-termini. Increase in MW of the target proteins from immunoblot indicated the presence of disulfide bonds. No bands with increased MW were detected in AQP5, while TPRV4 cysteines at disulfide bridges-constituting positions 639, 645, 652, 660, 770 were detected and confirmed by cysteine mutagenesis. These data indicate that the proposed technique is feasible and effective for the detection of protein disulfide bonds.
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Affiliation(s)
- Q W Ding
- Beijing Stomatological Hospital and School of Stomatology, Capital Medical University, Beijing, 100050 China.,
| | - M Lin
- Department of Stomatology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, 100020 China
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Milković L, Čipak Gašparović A. AQP3 and AQP5-Potential Regulators of Redox Status in Breast Cancer. Molecules 2021; 26:2613. [PMID: 33947079 DOI: 10.3390/molecules26092613] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 04/22/2021] [Accepted: 04/27/2021] [Indexed: 12/23/2022] Open
Abstract
Breast cancer is still one of the leading causes of mortality in the female population. Despite the campaigns for early detection, the improvement in procedures and treatment, drastic improvement in survival rate is omitted. Discovery of aquaporins, at first described as cellular plumbing system, opened new insights in processes which contribute to cancer cell motility and proliferation. As we discover new pathways activated by aquaporins, the more we realize the complexity of biological processes and the necessity to fully understand the pathways affected by specific aquaporin in order to gain the desired outcome-remission of the disease. Among the 13 human aquaporins, AQP3 and AQP5 were shown to be significantly upregulated in breast cancer indicating their role in the development of this malignancy. Therefore, these two aquaporins will be discussed for their involvement in breast cancer development, regulation of oxidative stress and redox signalling pathways leading to possibly targeting them for new therapies.
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Abstract
Forkhead box O1 (FoxO1) is a multifunctional initiator, mediator, and repressor of autoimmune diseases in an organ- or disease-specific manner. However, the role of FoxO1 in the salivary gland has not yet been elucidated. In this study, we discovered that FoxO1 and aquaporin 5 (AQP5) are both significantly downregulated in the patients with primary Sjögren syndrome, an autoimmune disease accompanying salivary gland dysfunction. Pharmacologic or genetic perturbation of FoxO1 in the rat salivary gland acinar cell line, SMG-C6, induced a significant downregulation of AQP5 expression, as observed in clinical specimens. There was a strong correlation between FoxO1 and AQP5 expression because FoxO1 is a direct regulator of AQP5 expression in salivary gland acinar cells through its interaction with the promoter region of AQP5. Serial injection of a FoxO1 inhibitor into mice induced a reduction of AQP5 expression in submandibular glands and, consequently, hyposalivation, which is one of the major clinical symptoms of primary Sjögren syndrome. However, there was no sign of inflammation or cell damage in the submandibular glands harvested from mice treated with the FoxO1 inhibitor. In conclusion, our findings indicate that FoxO1 in salivary gland tissue acts as a direct regulator of AQP5 expression. Thus, downregulation of FoxO1 observed in primary Sjögren syndrome is a putative mechanism for hyposalivation without the involvement of previously reported soluble factors in primary Sjögren syndrome patient sera.
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Affiliation(s)
- S M Lee
- Department of Pharmacology, School of Dentistry, Kyungpook National University, Daegu, Republic of Korea
| | - S W Lee
- Department of Physiology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - M Kang
- Department of Pharmacology, School of Dentistry, Kyungpook National University, Daegu, Republic of Korea
| | - J K Choi
- Department of Oral Medicine, School of Dentistry, Kyungpook National University, Daegu, Republic of Korea
| | - K Park
- Department of Physiology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - J S Byun
- Department of Oral Medicine, School of Dentistry, Kyungpook National University, Daegu, Republic of Korea
| | - D Y Kim
- Department of Pharmacology, School of Dentistry, Kyungpook National University, Daegu, Republic of Korea
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Login FH, Palmfeldt J, Cheah JS, Yamada S, Nejsum LN. Aquaporin-5 regulation of cell-cell adhesion proteins: an elusive "tail" story. Am J Physiol Cell Physiol 2020; 320:C282-C292. [PMID: 33175575 DOI: 10.1152/ajpcell.00496.2020] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Aquaporins (AQPs) are water channels that facilitate transport of water across cellular membranes. AQPs are overexpressed in several cancers. Especially in breast cancer, AQP5 overexpression correlates with spread to lymph nodes and poor prognosis. Previously, we showed that AQP5 expression reduced cell-cell adhesion by reducing levels of adherens and tight-junction proteins (e.g., ZO-1, plakoglobin, and β-catenin) at the actual junctions. Here, we show that, when targeted to the plasma membrane, the AQP5 COOH-terminal tail domain regulated junctional proteins and, moreover, that AQP5 interacted with ZO-1, plakoglobin, β-catenin, and desmoglein-2, which were all reduced at junctions upon AQP5 overexpression. Thus, our data suggest that AQP5 mediates the effect on cell-cell adhesion via interactions with junctional proteins independently of AQP5-mediated water transport. AQP5 overexpression in cancers may thus contribute to carcinogenesis and cancer spread by two independent mechanisms: reduced cell-cell adhesion, a characteristic of epithelial-mesenchymal transition, and increased cell migration capacity via water transport.
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Affiliation(s)
- Frédéric H Login
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Johan Palmfeldt
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Joleen S Cheah
- Department of Biomedical Engineering, University of California, Davis, California
| | - Soichiro Yamada
- Department of Biomedical Engineering, University of California, Davis, California
| | - Lene N Nejsum
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
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Stookey JD, Allu PKR, Chabas D, Pearce D, Lang F. Hypotheses about sub-optimal hydration in the weeks before coronavirus disease (COVID-19) as a risk factor for dying from COVID-19. Med Hypotheses 2020; 144:110237. [PMID: 33254543 DOI: 10.1016/j.mehy.2020.110237] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 08/20/2020] [Accepted: 08/30/2020] [Indexed: 02/03/2023]
Abstract
To address urgent need for strategies to limit mortality from coronavirus disease 2019 (COVID-19), this review describes experimental, clinical and epidemiological evidence that suggests that chronic sub-optimal hydration in the weeks before infection might increase risk of COVID-19 mortality in multiple ways. Sub-optimal hydration is associated with key risk factors for COVID-19 mortality, including older age, male sex, race-ethnicity and chronic disease. Chronic hypertonicity, total body water deficit and/or hypovolemia cause multiple intracellular and/or physiologic adaptations that preferentially retain body water and favor positive total body water balance when challenged by infection. Via effects on serum/glucocorticoid-regulated kinase 1 (SGK1) signaling, aldosterone, tumor necrosis factor-alpha (TNF-alpha), vascular endothelial growth factor (VEGF), aquaporin 5 (AQP5) and/or Na+/K+-ATPase, chronic sub-optimal hydration in the weeks before exposure to COVID-19 may conceivably result in: greater abundance of angiotensin converting enzyme 2 (ACE2) receptors in the lung, which increases likelihood of COVID-19 infection, lung epithelial cells which are pre-set for exaggerated immune response, increased capacity for capillary leakage of fluid into the airway space, and/or reduced capacity for both passive and active transport of fluid out of the airways. The hypothesized hydration effects suggest hypotheses regarding strategies for COVID-19 risk reduction, such as public health recommendations to increase intake of drinking water, hydration screening alongside COVID-19 testing, and treatment tailored to the pre-infection hydration condition. Hydration may link risk factors and pathways in a unified mechanism for COVID-19 mortality. Attention to hydration holds potential to reduce COVID-19 mortality and disparities via at least 5 pathways simultaneously.
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Im JW, Lee CY, Kim DH, Bae HR. Differential Expressions of Aquaporin Subtypes in Female Reproductive Tract of Mice. Dev Reprod 2020; 24:177-185. [PMID: 33110949 PMCID: PMC7576970 DOI: 10.12717/dr.2020.24.3.177] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Revised: 09/07/2020] [Accepted: 09/18/2020] [Indexed: 11/17/2022]
Abstract
Although many aquaporin (AQP) transcripts have been demonstrated to express in
the female reproductive tract, the defined localizations and functions of AQP
subtype proteins remain unclear. In this study, we investigated the expression
of AQP1, AQP3, AQP5, AQP6, and AQP9 proteins in female reproductive tract of
mouse and characterized their precise localizations at the cellular and
subcellular levels. Immunofluorescence analyses for AQP1, AQP3, AQP6, and AQP9
showed that these proteins were abundantly expressed in female reproductive
tract and that intense immunoreactivities were observed in mucosa epithelial
cells with a subtype-specific pattern. The most abundant aquaporin in both
vagina and uterine cervix was AQP3. Each of AQP1, AQP3, AQP6, and AQP9 exhibited
its distinct distribution in stratified squamous or columnar epithelial cells.
AQP9 expression was predominant in oviduct and ovary. AQP1, AQP3, AQP6, and AQP9
proteins were mostly seen in apical membrane of ciliated epithelial cells of the
oviduct as well as in both granulosa and theca cells of ovarian follicles. Most
of AQP subtypes were also expressed in surface epithelial cells and glandular
cells of endometrium in the uterus, but their expression levels were relatively
lower than those observed in the vagina, uterine cervix, oviduct and ovary. This
is the first study to investigate the expression and localization of 5 AQP
subtype proteins simultaneously in female reproductive tract of mouse. Our
results suggest that AQP subtypes work together to transport water and glycerol
efficiently across the mucosa epithelia for lubrication, proliferation, energy
metabolism and pH regulation in female reproductive tract.
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Affiliation(s)
- Ji Woo Im
- Dept. of Physiology, College of Medicine, Dong-A University, Busan 49201, Korea
| | - Chae Young Lee
- Dept. of Physiology, College of Medicine, Dong-A University, Busan 49201, Korea
| | - Dong-Hwan Kim
- Human Life Research Center, Dong-A University, Busan 49315, Korea
| | - Hae-Rahn Bae
- Dept. of Physiology, College of Medicine, Dong-A University, Busan 49201, Korea.,Human Life Research Center, Dong-A University, Busan 49315, Korea
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Liu Y, Di G, Hu S, Zhao T, Xu X, Wang X, Chen P. Expression Profiles of CircRNA and mRNA in Lacrimal Glands of AQP5-/- Mice With Primary Dry Eye. Front Physiol 2020; 11:1010. [PMID: 33013441 PMCID: PMC7497440 DOI: 10.3389/fphys.2020.01010] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 07/24/2020] [Indexed: 12/23/2022] Open
Abstract
Purpose: This work aimed to identify differentially expressed circular RNAs (circRNAs) and elucidate their potential function in aquaporin 5 (AQP5) knockout (AQP5–/–) mice with the primary dry eye phenotype. Methods: A slit lamp examination was performed on AQP5–/– mice to assess corneal epithelial defects using fluorescein sodium staining. Hematoxylin–eosin staining and transmission electron microscopy analysis were performed to identify structural changes in lacrimal gland epithelial cells due to AQP5 deficiency. The expression profiles of circRNA and messenger RNA (mRNA) were determined by a microarray analysis. The selected circRNA was verified by quantitative real-time reverse transcription-polymerase chain reaction (qRT-PCR). Gene Ontology and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analyses were performed to predict the biological functions and the potential pathways of parental genes involved in lacrimal gland epithelial cell changes. According to the bioinformatics analysis of identified circRNAs, we predicted a circRNA–miRNA–mRNA network of phagosomes. Results: The AQP5–/– mice spontaneously exhibit dry eye symptoms, wherein the AQP5 deficiency changes the structure of lacrimal gland epithelial cells. The analysis revealed that, compared to AQP5+/+ mice, 30 circRNAs in the lacrimal glands of AQP5–/– mice were differentially expressed (fold change ≥ 2.0, p < 0.05). Nine upregulated circRNAs were identified using qRT-PCR, and nine upregulated validated circRNAs, 40 altered microRNAs (miRNAs), and nine upregulated mRNAs were identified through a network analysis. The KEGG analysis showed that these nine target genes were expressed in phagosomes. Conclusion: The AQP5–/– mice have primary and stable dry eye phenotypes from birth. We identified differently expressed circRNAs in the lacrimal glands of AQP5–/– and AQP5+/+ mice, predicting a circRNA–miRNA–mRNA network of phagosomes. CircRNA likely plays an important role in lacrimal gland epithelial cell pathogenesis. Therefore, it is reasonable to use circRNA as a potential therapeutic agent for the treatment of dry eyes.
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Affiliation(s)
- Yaning Liu
- Department of Human Anatomy, Histology and Embryology, School of Basic Medicine, Qingdao University, Qingdao, China
| | - Guohu Di
- Department of Human Anatomy, Histology and Embryology, School of Basic Medicine, Qingdao University, Qingdao, China
| | - Shaohua Hu
- Department of Human Anatomy, Histology and Embryology, School of Basic Medicine, Qingdao University, Qingdao, China
| | - Tianyu Zhao
- Department of Human Anatomy, Histology and Embryology, School of Basic Medicine, Qingdao University, Qingdao, China
| | - Xinkai Xu
- Department of Human Anatomy, Histology and Embryology, School of Basic Medicine, Qingdao University, Qingdao, China
| | - Xiaoyi Wang
- Department of Human Anatomy, Histology and Embryology, School of Basic Medicine, Qingdao University, Qingdao, China
| | - Peng Chen
- Department of Human Anatomy, Histology and Embryology, School of Basic Medicine, Qingdao University, Qingdao, China
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Lv X, Gao F, Zhang S, Zhang S, Zhou X, Ding F, Wang J, Chen Q, Chen M, Liu Q. Maladjustment of β-CGRP/α-CGRP Regulation of AQP5 Promotes Transition of Alveolar Epithelial Cell Apoptosis to Pulmonary Fibrosis. J Interferon Cytokine Res 2020; 40:377-388. [PMID: 32746702 DOI: 10.1089/jir.2019.0184] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
This study explored the triggering mechanism of interstitial lung disease (ILD). We established the effects of immunogenic and neurogenic calcitonin gene-related peptide (CGRP) imbalance on the regulation of aquaporin 5 (AQP5) expression and the repair responses that promote the transition from alveolar epithelial cell (AEC) apoptosis to pulmonary fibrosis. Newly diagnosed ILD patients (n = 60) were enrolled, whose serological levels of β-CGRP, α-CGRP, AQP5, receptor activity modifying protein 1, and receptor component protein were detected by ELISA. Th1 and Th2 cytokines and CD4+ and CD8+ cells were measured by flow cytometry method. In vivo, bleomycin (BLM) was set for modeling pulmonary fibrosis. A CALCA-HET model was set as a chronic pulmonary fibrosis model. Hematoxylin-eosin, immunohistochemistry, and Masson's trichrome staining were performed to assess the role of apoptosis in the injured lung. The concentrations of cytokines were determined by cytokine antibody arrays. Abnormal activation of serological CD4+ T lymphocytes and predominant Th2 response was established in the patients with ILD. Moreover, the ratio of β-CGRP/α-CGRP positively correlated with the increased level of AQP5 in patients with ILD. In vivo, a significant increase of AQP5 and β-CGRP at the chronic stage of pulmonary fibrosis was induced by BLM in the mice model, whereas the expression of AQP5 protein was generally lower in the acute alveolitis phase. Moreover, the levels of AQP5 and α-CGRP in the CALCA-HET rats were lower than those of the normal saline group. The high ratio β-CGRP/α-CGRP enhanced the expression of AQP5, inhibited transforming growth factor-β1 (TGFβ1)/P-Smad1/Smad4 pathway, and upregulated the NRF2 signal, whereas the apoptosis of AECs was significantly reduced in late-stage pulmonary fibrosis. The imbalance of β-CGRP/α-CGRP may be associated with the predominance of Th2 response and participate in the process of AEC apoptosis in lung fibrosis. The high ratio of β-CGRP/α-CGRP may elevate the level of AQP5 through inactivation of the TGF-β1/smad1 signaling pathway and upregulation of the Nrf2 signaling in the chronic stage of pulmonary fibrosis.
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Affiliation(s)
- Xiaoting Lv
- Department of Respiratory and Critical Care Medicine, Research Laboratory of the Respiratory System Diseases, First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Feng Gao
- Department of Pathology, First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Shuyu Zhang
- College of Medical Technology and Engineering, Fujian Medical University, Fuzhou, China
| | - Sheng Zhang
- Department of Pathology, First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Xiaohui Zhou
- Department of Clinical Skill Training Center, Fujian Medical University, Fuzhou, China
| | - Fadian Ding
- Department of Hepatopancreatobiliary Surgery and Institute of Abdominal Surgery, First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Jingwen Wang
- School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China
| | - Qingquan Chen
- College of Medical Technology and Engineering, Fujian Medical University, Fuzhou, China
| | - Min Chen
- College of Medical Technology and Engineering, Fujian Medical University, Fuzhou, China
| | - Qicai Liu
- Department of Reproductive Medicine Centre, First Affiliated Hospital, Fujian Medical University, Fuzhou, China
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Abstract
BACKGROUND Studies showed that microRNAs (miRNAs) are important regulators in drug resistance. The current study investigated the role of miR-185-3p and its predicted target gene AQP5 in 5-FU-insensitive colorectal cancer (CRC) cells. METHODS Quantitative real-time polymerase chain reaction (qRT-PCR) and Spearman's correlation analysis were conducted to determine the correlation of expression levels of miR-185-3p and AQP5 from CRC tissues. HCT-116 and HCT-8 cells were treated by gradient concentration of 5-FU to construct 5-FU-resistant CRC model. The inhibition and viability of 5-FU-resistant cells were detected by MTT assay, and cell migration and invasion ability were determined by wound healing and transwell assay. The expressions of miR-185-3p and AQP5 were measured by qRT-PCR. StarBase and dual-luciferase reporter assay were used to predict and confirm the interaction between miR-185-3p and AQP5. Further experiments were performed to explore the function of miR-185-3p in 5-FU-resistant cells through regulating aquaporin-5 (AQP5). The levels of EMT-associated markers and AQP5 were determined by conducting Western Blot and qRT-PCR. RESULTS We found that 5-FU-resistant CRC cells showed a lower inhibition rate, and higher migration and invasion abilities. MiR-185-3p was low-expressed in CRC tissues and 5-FU-resistance cells, and it targeted and regulated the expression of AQP5, which was found up-regulated in CRC and 5-FU-resistance CRC cells (r = -0.29, P < .05). Furthermore, miR-185-3p mimic enhanced the chemo-sensitivity of 5-FU-resistant cells, while overexpressed AQP5 reversed such an effect produced by miR-185-3p mimic. CONCLUSION MiR-185-3p mimic enhances the chemosensitivity of CRC cells via AQP5. Our research provides a potential therapeutic target for 5-FU-resistant CRC cells.
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Affiliation(s)
- Chunhua Zhou
- Department of Gastrointestinal Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine , Hangzhou, Zhejiang Province, China
| | - Wencheng Kong
- Department of Gastrointestinal Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine , Hangzhou, Zhejiang Province, China
| | - Tongfa Ju
- Department of Gastrointestinal Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine , Hangzhou, Zhejiang Province, China
| | - Qi Xie
- Department of Gastrointestinal Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine , Hangzhou, Zhejiang Province, China
| | - Lulu Zhai
- Department of Gastrointestinal Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine , Hangzhou, Zhejiang Province, China
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Ulkumen B, Artunc Ulkumen B, Batir MB, Cam S, Vatansever S. The Role of TREK-1 and AQP5 in Gonadocorticoid-Related Voice Disorders. J Voice 2020; 36:150-155. [PMID: 32439217 DOI: 10.1016/j.jvoice.2020.04.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 04/22/2020] [Accepted: 04/23/2020] [Indexed: 10/24/2022]
Abstract
OBJECTIVES TWIK-related potassium channel-1 (TREK-1) and Aquaporin 5 (AQP5) are involved in epithelial integrity and fluid transport, respectively. In this study, we aimed to compare physiological and gestational patterns of TREK-1 and AQP5 location and expression in rat larynx. Our secondary objective was to reveal the effect of estradiol (E2) and progesterone (PG) on these two biomolecules. METHODS This study was conducted on 20 Wister albino female rats which were assigned as control (group A) and pregnant group (group B). The rats were sacrificed at 20th day of pregnancy. Blood was obtained directly from the ventricle for detection of serum E2 and PG levels. Larynx was resected for immunohistochemical analyses and real-time polymerase chain reaction testing for detection of TREK-1 and AQP5 staining and expression, respectively. RESULTS Relative TREK-1 (P = 0.035) and AQP5 (P = 0.019) expression was found to be significantly high in group B when compared with group A. We found positive correlation between serum E2 levels and both biomolecules (TREK-1; P = 0.018, AQP5; P = 0.016). We also found positive correlation between serum PG levels and both biomolecules (TREK-1; P = 0.001, AQP5; P = 0.019). TREK-1 immunostaining was found to be higher in surface epithelium and lamina propria of vocal cord mucosa. AQP5 was particularly found to be located in basement membrane and adjacent superficial lamina propria. We revealed the physiological and gestational pattern of laryngeal TREK-1 and AQP5 expression for the first time. Gestational expression of both TREK-1 and AQP5 was found to be increased. Stimulatory effect of E2 and PG on laryngeal TREK-1 and AQP5 expression was also revealed. CONCLUSIONS We revealed upregulatory effect of E2 and PG on laryngeal TREK-1 and AQP5 expression. Based on this finding, it can be suggested that TREK-1 and AQP5 play role in biomolecular processes leading gonadocorticoid-related voice changes.
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Affiliation(s)
- Burak Ulkumen
- Department of Otorhinolaryngology-Head Neck Surgery, Faculty of Medicine, Manisa Celal Bayar University, Manisa, Turkey.
| | - Burcu Artunc Ulkumen
- Department of Obstetrics and Gynecology, Faculty of Medicine, Manisa Celal Bayar University, Manisa, Turkey
| | - Muhammet Burak Batir
- Department of Biology, Faculty of Science and Letters, Manisa Celal Bayar University, Manisa, Turkey
| | - Sirri Cam
- Department of Medical Genetics, Faculty of Medicine, Manisa Celal Bayar University, Manisa, Turkey
| | - Seda Vatansever
- Department of Histology-Embryology, Faculty of Medicine, Manisa Celal Bayar University, Manisa, Turkey; Experimental Research Center of Health (DESAM), Near East University, Mersin, Turkey
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Bergmann L, Nowak H, Siffert W, Peters J, Adamzik M, Koos B, Rahmel T. Major Adverse Kidney Events Are Associated with the Aquaporin 5 -1364A/C Promoter Polymorphism in Sepsis: A Prospective Validation Study. Cells 2020; 9:E904. [PMID: 32272738 DOI: 10.3390/cells9040904] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Accepted: 04/05/2020] [Indexed: 12/29/2022] Open
Abstract
Since the functionally important AQP5 -1364A/C single nucleotide promoter polymorphism alters key mechanisms of inflammation and survival in sepsis, it may affect the risk of an acute kidney injury. Accordingly, we tested the hypothesis in septic patients that this AQP5 polymorphism is associated with major adverse kidney events and also validated its impact on 90-day survival. In this prospective observational monocentric genetic association study 282 septic patients were included and genotyped for the AQP5 –1364A/C polymorphism (rs3759129). The primary endpoint was the development of major adverse kidney events within 30 days. In AC/CC genotypes, major adverse kidney events were less frequent (41.7%) than in AA genotypes (74.3%; OR:0.34; 95%-CI: 0.18–0.62; p < 0.001). Ninety-day survival was also associated with the AQP5 polymorphism (p = 0.004), with 94/167 deaths (56.3%) in AA genotypes, but only 46/115 deaths (40.0%) in C-allele carriers. Multiple proportional hazard analysis revealed AC/CC genotypes to be at significantly lower risk for death within 90 days (HR: 0.60; 95%-CI: 0.42-0.86; p = 0.006). These findings confirm the important role of the AQP5 -1364A/C polymorphism as an independent prognostic factor in sepsis. Furthermore, we demonstrate a strong association between this AQP5 polymorphism and susceptibility for major adverse kidney events suggesting a promising characteristic in terms of precision medicine.
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Varadaraj K, Kumari SS. Lens aquaporins function as peroxiporins to facilitate membrane transport of hydrogen peroxide. Biochem Biophys Res Commun 2020; 524:1025-1029. [PMID: 32063362 DOI: 10.1016/j.bbrc.2020.02.031] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2020] [Accepted: 02/05/2020] [Indexed: 01/02/2023]
Abstract
High levels of reactive oxygen species such as hydrogen peroxide (H2O2) cause oxidative stress in the lens and lead to cataractogenesis. The present investigation was undertaken to find out whether the mammalian lens aquaporins (AQPs) 0, 1, and 5 perform H2O2 transport across the plasma membrane to reduce oxidative stress. Our in vitro cell culture and ex vivo lens experiments demonstrated that in addition to the established water transport role, mouse AQP0, AQP1 and AQP5 facilitate transmembrane H2O2 transport and function as peroxiporins. Human lens epithelial cells expressing AQP1, AQP5 and AQP8, when treated with 50 μM HgCl2 water channel inhibitor showed a significant reduction in H2O2 transport. Data obtained from the experiments involving H2O2-degrading enzyme glutathione peroxidase 1 (GPX1) knockout lenses showed H2O2 accumulation, suggesting H2O2 transport level by AQPs in the lens is regulated by GPX1. Under hyperglycemic conditions, there was an increased loss of transparency, and enhanced production and retention of H2O2 in AQP5-/- lenses compared to similarly-treated WT lenses. Overall, the results show that lens AQPs function as peroxiporins and cooperate with GPX1 to maintain lens H2O2 homeostasis to prevent oxidative stress, highlighting AQPs and GPX1 as promising therapeutic drug targets to delay/treat/prevent age-related lens cataracts.
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Affiliation(s)
| | - S Sindhu Kumari
- Physiology and Biophysics, Renaissance School of Medicine, Stony Brook University, NY, USA
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Pang L, Li X, Wang K, Tao Y, Cui T, Xu Q, Lin H. Interactions with the aquaporin 5 gene increase the susceptibility to molar-incisor hypomineralization. Arch Oral Biol 2019; 111:104637. [PMID: 31884335 DOI: 10.1016/j.archoralbio.2019.104637] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2019] [Revised: 12/14/2019] [Accepted: 12/18/2019] [Indexed: 12/31/2022]
Abstract
OBJECTIVE The aim of this study was to evaluate whether individual genetic factors involved in amelogenesis, the immune response and water channel proteins may increase the susceptibility to Molar-Incisor Hypomineralization (MIH) in Chinese children. DESIGN DNA samples were collected from 86 cases with MIH cases and 344 controls. Sixteen single-nucleotide polymorphisms (SNPs) were investigated. Logistic regression analysis was performed to assess association between SNPs and the risk of MIH. RESULTS Our results showed that the risk of MIH in the rs13115627-AA genotype carriers and the rs1784418-TT genotype carriers were significantly higher than that among those with the rs13115627-GG genotype (OR (95 % CI)) = 4.942 (0.658-37.131) and the rs1784418-CT genotype (OR (95 % CI)) = 2.023 (1.63-3.521). The population with the rs1800972-CC genotype and the rs1800972-C allele had a higher risk to develop MIH, OR (95 % CI) = 2.284 (1.267-4.115), OR (95 % CI) = 2.427 (1.493-3.953) respectively. In the Aquaporin 5(AQP5) gene, we individually analyzed two SNPs, rs1996315 and rs923911. We found no significant associations between them and MIH. However, in the analysis of the gene-gene interactions, we discovered a significant two-locus model (P = 0.023) involving rs1996315 and rs923911. Participants with the rs1996315-AG and rs923911-AC genotypes had the highest MIH risk, compared to participants with the rs1996315-GG and rs923911-CC genotypes, OR (95 % CI) = 3.603 (1.147-11.318). CONCLUSION This study showed that genetic variants in the AMBN, MMP20 and DEFB1 genes may contribute to MIH in the permanent dentition of children. Moreover, interactions among AQP5 gene may also increase the MIH susceptibility.
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Affiliation(s)
- Liangyue Pang
- Department of Preventive Dentistry, Guanghua School of Stomatology, Sun Yat-sen University, 56 Ling Yuan Road West, 510050 Guangzhou, China; Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, 510080, Guangzhou, China
| | - Xia Li
- Foshan Stomatology Hospital, School of Stomatology and Medicine, Foshan University, Foshan, China
| | - Ketian Wang
- Department of Preventive Dentistry, Guanghua School of Stomatology, Sun Yat-sen University, 56 Ling Yuan Road West, 510050 Guangzhou, China; Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, 510080, Guangzhou, China
| | - Ye Tao
- Department of Preventive Dentistry, Guanghua School of Stomatology, Sun Yat-sen University, 56 Ling Yuan Road West, 510050 Guangzhou, China; Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, 510080, Guangzhou, China
| | - Tianqiang Cui
- Foshan Stomatology Hospital, School of Stomatology and Medicine, Foshan University, Foshan, China
| | - Qiong Xu
- Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, 510080, Guangzhou, China.
| | - Huancai Lin
- Department of Preventive Dentistry, Guanghua School of Stomatology, Sun Yat-sen University, 56 Ling Yuan Road West, 510050 Guangzhou, China; Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, 510080, Guangzhou, China.
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Zhang J, Li S, Liu J, Li L, Deng F, Baikeli B, Li L, Ma X, Liu G. Higher expression levels of aquaporin (AQP)1 and AQP5 in the lungs of arid-desert living Lepus yarkandensis. J Anim Physiol Anim Nutr (Berl) 2019; 104:1186-1195. [PMID: 31828851 DOI: 10.1111/jpn.13272] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2019] [Revised: 11/10/2019] [Accepted: 11/19/2019] [Indexed: 12/01/2022]
Abstract
Water transport across epithelial cells that line the airways and alveoli is a crucial component of lung physiology. Aquaporins (AQPs) facilitate water transport across the air space-capillary barrier in the distal lung. However, the roles of lung AQPs in desert animal adaptation to dry airstream environments are still unclear. A hare (Lepus yarkandensis) only lives in the Tarim Basin, and its living environment is an arid climate with rare precipitation. We studied cellular localization and expression levels of AQP1, AQP3, AQP4 and AQP5 in L. yarkandensis lungs by immunohistochemistry, quantitative real-time polymerase chain reaction and Western blot. The lung of rabbits (Oryctolagus cuniculus) that inhabit in mesic environment was similarly studied. Obtained results in two species of animals were compared to investigate whether AQPs in the lung altered expression in the animal living in arid region. AQP1 was localized to the endothelial cells in capillaries and venules surrounding terminal bronchioles and alveoli. AQP5 was localized to the ciliated columnar cells in terminal bronchioles and the alveolar type I cells in the alveolus. Quantitative real-time PCR analysis showed higher AQP1 and AQP5 mRNA levels in L. yarkandensis compared to O. cuniculus. Similar results were obtained by Western blot. These results revealed that the higher expression levels of AQP1 and AQP5 played a significant role in water transport in the lungs of arid-desert living L. yarkandensis and might accelerate water transport from capillary compartments to the airspace.
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Affiliation(s)
- Jianping Zhang
- College of Life Science, Tarim University, Alar, China.,Key Lab of Biological Resources Protection and Utilization in Tarim Basin, Tarim University, Alar, China.,Department of Biochemistry and Molecular Biology, School of Laboratory Medicine, Anhui Province Key Laboratory of Translational Cancer Research, Bengbu Medical College, Bengbu, China
| | - Shuwei Li
- College of Life Science, Tarim University, Alar, China.,Key Lab of Biological Resources Protection and Utilization in Tarim Basin, Tarim University, Alar, China
| | - Jie Liu
- Department of Biochemistry and Molecular Biology, School of Laboratory Medicine, Anhui Province Key Laboratory of Translational Cancer Research, Bengbu Medical College, Bengbu, China
| | - Lexing Li
- Department of Biochemistry and Molecular Biology, School of Laboratory Medicine, Anhui Province Key Laboratory of Translational Cancer Research, Bengbu Medical College, Bengbu, China
| | - Fang Deng
- College of Life Science, Tarim University, Alar, China
| | | | - Linrui Li
- Department of Basic Veterinary Medicine, Key Lab of Swine Genetics and Breeding and Agricultural Animal Breeding and Reproduction, College of Animal Science and Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Xuanye Ma
- Department of Basic Veterinary Medicine, Key Lab of Swine Genetics and Breeding and Agricultural Animal Breeding and Reproduction, College of Animal Science and Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Guoquan Liu
- Department of Biochemistry and Molecular Biology, School of Laboratory Medicine, Anhui Province Key Laboratory of Translational Cancer Research, Bengbu Medical College, Bengbu, China.,Department of Basic Veterinary Medicine, Key Lab of Swine Genetics and Breeding and Agricultural Animal Breeding and Reproduction, College of Animal Science and Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
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Rahmel T, Nowak H, Rump K, Koos B, Schenker P, Viebahn R, Adamzik M, Bergmann L. The Aquaporin 5 -1364A/C Promoter Polymorphism Is Associated With Cytomegalovirus Infection Risk in Kidney Transplant Recipients. Front Immunol 2019; 10:2871. [PMID: 31867018 PMCID: PMC6906153 DOI: 10.3389/fimmu.2019.02871] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Accepted: 11/22/2019] [Indexed: 12/19/2022] Open
Abstract
Background: The aquaporin 5 (AQP5) −1364A/C promoter single nucleotide polymorphism affects key mechanisms of inflammation and immune cell migration. Thus, it could be involved in the pathogenesis of cytomegalovirus infection. Accordingly, we tested the hypothesis that the AQP5 promoter −1364A/C polymorphism is associated with the risk of cytomegalovirus infection in kidney transplantation recipients. Methods: We included 259 adult patients who received a kidney transplant from 2007 and 2014 in this observational study. Patients were genotyped for the AQP5 promoter −1364A/C single nucleotide polymorphism and followed up for 12 months after transplantation. Kaplan–Meier plots and multivariable proportional hazard analyses were used to evaluate the relationship between genotypes and the incidence of cytomegalovirus infection. Results: The incidences of cytomegalovirus infection within 12 months after kidney transplantation were 22.9% for the AA genotypes (43/188) and 42.3% for the AC/CC genotypes (30/71; p = 0.002). Furthermore, multivariable COX regression revealed the C-allele of the AQP5 −1364A/C polymorphism to be a strong and independent risk factor for cytomegalovirus infection. In this analysis, AC/CC subjects demonstrated a more than 2-fold increased risk for cytomegalovirus infection within the first year after kidney transplantation (hazard ratio: 2.28; 95% CI: 1.40–3.73; p = 0.001) compared to that in individuals with homozygous AA genotypes. Conclusions: With respect to opportunistic cytomegalovirus infections (attributable to immunosuppression after kidney transplantation), the C-allele of the AQP5 −1364A/C promoter polymorphism is independently associated with an increased 12-months infection risk. These findings emphasize the importance of genetic variations as additional risk factors of cytomegalovirus infection after solid organ transplantations and might also facilitate the discovery of novel therapeutic targets.
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Affiliation(s)
- Tim Rahmel
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany
| | - Hartmuth Nowak
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany
| | - Katharina Rump
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany
| | - Björn Koos
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany
| | - Peter Schenker
- Klinik für Chirurgie, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany
| | - Richard Viebahn
- Klinik für Chirurgie, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany
| | - Michael Adamzik
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany
| | - Lars Bergmann
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany
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Ducza E, Csányi A, Szőke É, Pohóczky K, Hajagos-Tóth J, Kothencz A, Tiszai Z, Gáspár R. Significance of transient receptor potential vanilloid 4 and aquaporin 5 co-expression in the rat uterus at term. Heliyon 2019; 5:e02697. [PMID: 31687520 PMCID: PMC6820280 DOI: 10.1016/j.heliyon.2019.e02697] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 09/13/2019] [Accepted: 10/16/2019] [Indexed: 12/15/2022] Open
Abstract
Aims Aquaporins (AQPs) are channel proteins that facilitate the rapid passive movement of water. In our studies it was proved that the decreased AQP5 expression is followed by the increase of uterine contractility. The transient receptor potential vanilloid 4 (TRPV4) is a calcium channel, which is activated in response to osmotic changes. Our aim was to determine the possible role of AQP5 in this osmotic regulation of TRPV4, thus in pregnant uterine contraction. Main methods We used RT-PCR and Western blot techniques for the detection of the TRPV4 expression during pregnancy in rat uterus. The localization of AQP5 and TRPV4 was determined by immunohistochemical studies. The role of TRPV4 in uterus contraction was investigated in an isolated organ bath system. In vitro uterus contractions were stimulated with KCl and its effect was investigated with the selective TRPV4 agonist (RN1747) and antagonist (RN1734). Key findings The TRPV4 expression continuously increased from day 18 to the last day of pregnancy. The co-expression of TRPV4 and AQP5 in the myometrium and endometrium was determined in the late pregnant uterus. The TRPV4 antagonist and agonist significantly decreased and increased uterine contraction, respectively, especially on the last day of pregnancy. Significance We presume the decreased AQP5 expression triggers hypertonic stress, which activates TRPV4 and increases uterus contraction on the day of labor. Based on these findings, we suppose the TRPV4 effect on uterus contraction is AQP5 control, which could be a new target in preterm birth therapy.
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Affiliation(s)
- Eszter Ducza
- Department of Pharmacodynamics and Biopharmacy, University of Szeged, Hungary
- Corresponding author.
| | - Adrienn Csányi
- Department of Pharmacodynamics and Biopharmacy, University of Szeged, Hungary
| | - Éva Szőke
- Department of Pharmacology and Pharmacotherapy, Medical School, University of Pécs, Pécs, Hungary
- János Szentágothai Research Center & Centre for Neuroscience, University of Pécs, Hungary
| | - Krisztina Pohóczky
- Department of Pharmacology and Pharmacotherapy, Medical School, University of Pécs, Pécs, Hungary
- János Szentágothai Research Center & Centre for Neuroscience, University of Pécs, Hungary
- Department of Pharmacology, Faculty of Pharmacy, University of Pécs, Pécs, Hungary
| | - Judit Hajagos-Tóth
- Department of Pharmacodynamics and Biopharmacy, University of Szeged, Hungary
- Department of Pharmacology and Pharmacotherapy, Interdisciplinary Excellence Centre, University of Szeged, Hungary
| | - Anna Kothencz
- Department of Pharmacodynamics and Biopharmacy, University of Szeged, Hungary
- Department of Pharmacology and Pharmacotherapy, Interdisciplinary Excellence Centre, University of Szeged, Hungary
| | - Zita Tiszai
- Department of Pharmacodynamics and Biopharmacy, University of Szeged, Hungary
| | - Róbert Gáspár
- Department of Pharmacodynamics and Biopharmacy, University of Szeged, Hungary
- Department of Pharmacology and Pharmacotherapy, Interdisciplinary Excellence Centre, University of Szeged, Hungary
- Corresponding author.
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Liu SC, Huang CM, Chang YL, Bamodu OA, Yeh CT, Wang HW, Lee FP, Lin CS. Ovatodiolide suppresses inflammatory response in BEAS-2B cells by regulating the CREB/ AQP5 pathway, and sensitizes nasopharyngeal carcinoma cells to radiation therapy. Eur J Pharmacol 2019; 859:172548. [PMID: 31323224 DOI: 10.1016/j.ejphar.2019.172548] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 07/13/2019] [Accepted: 07/15/2019] [Indexed: 12/20/2022]
Abstract
Due to the radiosensitivity of the airway epithelium, radiation-induced sinusitis or bronchitis is not uncommon, and makes mitigation of resulting inflammatory airway diseases a principal goal of many investigations. This study examined whether Ovatodiolide (Ova) sensitizes the human metastatic nasopharyngeal cancer (NPC) cell line, NPC-BM2, to irradiation using viability, clonogenicity and Western blot assays. Concurrently, we used varying concentrations of histamine and/or Ova to determine the anti-inflammatory potential of Ovatodiolide on normal bronchus epithelial BEAS-2B cells, as well as on the subcellular distribution of Aquaporin 5 (AQP5) and expression levels of p-CREB, AQP5, p38 MAPK, NF-κB, PI3K, Akt and ERK proteins. We demonstrated that Ova in synergism with irradiation inhibited NPC-BM2 cell viability and suppressed their clonogenicity. Immunofluorescence analysis revealed low-dose (≤ 2.5 μM) Ova reversed histamine-induced suppression of AQP5 expression, and abrogated histamine-enhanced NF-κB nuclear translocation, indicating Ova modulates the p38 MAPK/NF-κB signaling pathway and elicits p-CREB/AQP5-mediated antihistamine effects. Similarly, Ova deregulates the PI3K/Akt/ERK signaling in BEAS-2B cells, suggesting its cytoprotective potential. In conclusion, this study highlights the radio-sensitizing anticancer efficacy of Ova in human metastatic NPC cells, as well as its putative cytoprotective role in normal bronchial cells, for airway surface liquid maintenance and homeostasis during or after radiotherapy.
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Affiliation(s)
- Shao-Cheng Liu
- Department of Otolaryngology-Head and Neck Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei City, 114, Taiwan
| | - Chih-Ming Huang
- Department of Otolaryngology, Taitung Mackay Memorial Hospital, Taiwan
| | - Yung-Lung Chang
- Department of Biochemistry, National Defense Medical Center, Taipei City, 114, Taiwan
| | - Oluwaseun Adebayo Bamodu
- Department of Hematology and Oncology, Cancer Center, Taipei Medical University - Shuang Ho Hospital, New Taipei City, 235, Taiwan; Department of Medical Research & Education, Taipei Medical University - Shuang Ho Hospital, New Taipei City, 235, Taiwan
| | - Chi-Tai Yeh
- Department of Hematology and Oncology, Cancer Center, Taipei Medical University - Shuang Ho Hospital, New Taipei City, 235, Taiwan; Department of Medical Research & Education, Taipei Medical University - Shuang Ho Hospital, New Taipei City, 235, Taiwan
| | - Hsing-Won Wang
- Department of Otolaryngology-Head and Neck Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei City, 114, Taiwan; Department of Otolaryngology-Head and Neck Surgery, Taipei Medical University - Shuang Ho Hospital, New Taipei City, 235, Taiwan
| | - Fei-Peng Lee
- Department of Hematology and Oncology, Cancer Center, Taipei Medical University - Shuang Ho Hospital, New Taipei City, 235, Taiwan; Department of Medical Research & Education, Taipei Medical University - Shuang Ho Hospital, New Taipei City, 235, Taiwan
| | - Chun-Shu Lin
- Department of Radiation Oncology, Tri-Service General Hospital, National Defense Medical Center, Taipei City, 114, Taiwan.
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Zhang Z, Han Y, Sun G, Liu X, Jia X, Yu X. MicroRNA-325-3p inhibits cell proliferation and induces apoptosis in hepatitis B virus-related hepatocellular carcinoma by down-regulation of aquaporin 5. Cell Mol Biol Lett 2019; 24:13. [PMID: 30805015 PMCID: PMC6373077 DOI: 10.1186/s11658-019-0137-1] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Accepted: 01/29/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Hepatitis B virus (HBV) infection is acknowledged as the main cause of hepatocellular carcinoma (HCC). Moreover, previous studies have revealed that microRNAs (miRNAs) widely participate in regulation of various cellular processes, such as viral replication. Hence, the purpose of this study was to investigate the roles of aquaporin 5 (AQP5) and miR-325-3p in the proliferation and apoptosis of HBV-related HCC cells. METHODS AQP5 and miR-325-3p expression in both normal and HBV-HCC tissues or cells (both Huh7-1.3 and HepG2.2.15) was detected using qRT-PCR. AQP5 expression was knocked down in HBV-related Huh7-1.3 and HepG2.2.15 cells using small interfering RNA (siRNA) technology. Down-regulation was confirmed using real-time PCR and Western blot analysis. Effects of AQP5 down-regulation on the proliferation and apoptosis were assessed. Dual luciferase reporter gene assay, Western blot and qRT-PCR were employed to evaluate the effect of miR-325-3p on the luciferase activity and expression of AQP5. Moreover, miR-325-3p mimic-induced changes in cellular proliferation and apoptosis were detected through CCK-8 assay, BrdU assay, flow cytometry analysis and ELISA. RESULTS In this study, the expression of AQP5 was up-regulated in human HBV-HCC tissue, Huh7-1.3 and HepG2.2.15 cells. Knockdown of AQP5 significantly inhibited the proliferation and promoted apoptosis of HBV-HCC cells. Next, miR-325-3p was obviously down-regulated in HBV-HCC. In concordance with this, MiR-325-3p directly targeted AQP5, and reduced both mRNA and protein levels of AQP5, which promoted cell proliferation and suppressed cell apoptosis in HCC cells. Overexpression of miR-325-3p dramatically inhibited cell proliferation and induced cell apoptosis. CONCLUSIONS Our findings clearly demonstrated that introduction of miR-325-3p inhibited proliferation and induced apoptosis of Huh7-1.3 and HepG2.2.15 cells by directly decreasing AQP5 expression, and that silencing AQP5 expression was essential for the pro-apoptotic effect of miR-325-3p overexpression on Huh7-1.3 and HepG2.2.15 cells. It is beneficial to gain insight into the mechanism of HBV infection and pathophysiology of HBV-related HCC.
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Affiliation(s)
- Zhitao Zhang
- Clinical Laboratory, Handan Infectious Disease Hospital, Handan, 056002 Hebei Province People’s Republic of China
| | - Yanzhen Han
- General Surgery V Ward, Affiliated Hospital of Hebei Engineering University, Handan, 056002 Hebei Province People’s Republic of China
| | - Guangxin Sun
- General Surgery V Ward, Affiliated Hospital of Hebei Engineering University, Handan, 056002 Hebei Province People’s Republic of China
| | - Xiaohong Liu
- General Surgery V Ward, Affiliated Hospital of Hebei Engineering University, Handan, 056002 Hebei Province People’s Republic of China
| | - Xiaoyan Jia
- General Surgery V Ward, Affiliated Hospital of Hebei Engineering University, Handan, 056002 Hebei Province People’s Republic of China
| | - Xiangjun Yu
- General Surgery V Ward, Affiliated Hospital of Hebei Engineering University, Handan, 056002 Hebei Province People’s Republic of China
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Biswas R, Ahn JC, Moon JH, Kim J, Choi YH, Park SY, Chung PS. Low-level laser therapy with 850 nm recovers salivary function via membrane redistribution of aquaporin 5 by reducing intracellular Ca 2+ overload and ER stress during hyperglycemia. Biochim Biophys Acta Gen Subj 2018; 1862:1770-1780. [PMID: 29751100 DOI: 10.1016/j.bbagen.2018.05.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Revised: 05/04/2018] [Accepted: 05/07/2018] [Indexed: 12/28/2022]
Abstract
The overall goal is to study the effect of low-level laser therapy (LLLT) on membrane distribution of major water channel protein aquaporin 5 (AQP5) in salivary gland during hyperglycemia. Par C10 cells treated with high glucose (50 mM) showed a reduced membrane distribution of AQP5. The functional expression of AQP5 was downregulated due to intracellular Ca2+ overload and ER stress. This reduction in AQP5 expression impairs water permeability and therefore results in hypo-salivation. A reduced salivary flow was also observed in streptozotocin (STZ)-induced diabetic mice model and the expression of AQP5 and phospho-AQP5 was downregulated. Low-level laser treatment with 850 nm (30 mW, 10 min = 18 J/cm2) reduced ER stress and recovered AQP5 membrane distribution via serine phosphorylation in the cells. In the STZ-induced diabetic mouse, LLLT with 850 nm (60 J/cm2) increased salivary flow and upregulated of AQP5 and p-AQP5. ER stress was also reduced via downregulation of caspase 12 and CHOP. In silico analysis confirmed that the serine 156 is one of the most favorable phosphorylation sites of AQP5 and may contribute to the stability of the protein. Therefore, this study suggests high glucose inhibits phosphorylation-dependent AQP5 membrane distribution. High glucose induces intracellular Ca2+ overload and ER stress that disrupt AQP5 functional expression. Low-level laser therapy with 850 nm improves salivary function by increasing AQP5 membrane distribution in hyperglycemia-induced hyposalivation.
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Affiliation(s)
- Raktim Biswas
- Laser Translational Clinical Trial Centre, Dankook University Hospital, Cheonan, Republic of Korea
| | - Jin Chul Ahn
- Department of Biomedical Science, College of Medicine, Dankook University, Cheonan, Republic of Korea
| | - Jeong Hwan Moon
- Laser Translational Clinical Trial Centre, Dankook University Hospital, Cheonan, Republic of Korea; Department of Otolaryngology-Head and Neck Surgery, Dankook University College of Medicine, Cheonan, Republic of Korea
| | - Jungbin Kim
- Laser Translational Clinical Trial Centre, Dankook University Hospital, Cheonan, Republic of Korea
| | - Young-Hoon Choi
- Laser Translational Clinical Trial Centre, Dankook University Hospital, Cheonan, Republic of Korea
| | - So Young Park
- Laser Translational Clinical Trial Centre, Dankook University Hospital, Cheonan, Republic of Korea
| | - Phil-Sang Chung
- Laser Translational Clinical Trial Centre, Dankook University Hospital, Cheonan, Republic of Korea; Department of Otolaryngology-Head and Neck Surgery, Dankook University College of Medicine, Cheonan, Republic of Korea.
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Kumari SS, Varadaraj M, Menon AG, Varadaraj K. Aquaporin 5 promotes corneal wound healing. Exp Eye Res 2018; 172:152-158. [PMID: 29660329 DOI: 10.1016/j.exer.2018.04.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Revised: 03/30/2018] [Accepted: 04/09/2018] [Indexed: 12/01/2022]
Abstract
Aquaporins (AQPs), ordinarily regarded as water channels, have recently been shown to participate in other cellular functions such as cell-to-cell adhesion, cell migration, cell proliferation etc. The current investigation was undertaken to find out whether AQP5 water channel plays a role in corneal epithelial wound healing. Expression of AQP5 in mouse cornea and transfected Madin-Darby canine kidney (MDCK) cells was detected using immunofluorescence or EGFP tag. Cell migration and proliferation, the two major events in wound healing, were studied in vitro using cell culture scratch-wound healing model and cell proliferation assay, in vivo by conducting wound healing experiments on corneas of wild-type and AQP5 knockout mouse model and ex vivo on corneal epithelial cells isolated from wild type and AQP5 knockout mice. MDCK cells stably expressing AQP5 showed significantly higher levels of cell migration and proliferation compared to control cells. Likewise, corneal epithelial cells of wild type mouse with innate AQP5 exhibited faster wound healing than those of AQP5 knockout in vivo and under ex vivo culture conditions. In vitro, in vivo and ex vivo studies showed that presence of AQP5 improved cell migration, proliferation and wound healing. The data collected suggest that AQP5 plays a significant role in corneal epithelial wound healing.
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Affiliation(s)
- S Sindhu Kumari
- Department of Physiology and Biophysics, Stony Brook University, Stony Brook Y 11794-8661, USA
| | - Murali Varadaraj
- InSTAR Program, Ward Melville High School, East Setauket, NY 11733, USA
| | - Anil G Menon
- Department of Molecular Genetics, Biochemistry and Microbiology, University of Cincinnati College of Medicine, Cincinnati, OH 45267-0524, USA
| | - Kulandaiappan Varadaraj
- Department of Physiology and Biophysics, Stony Brook University, Stony Brook Y 11794-8661, USA; SUNY Eye Institute, New York, NY, USA.
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Yang J, Zhang JN, Chen WL, Wang GS, Mao Q, Li SQ, Xiong WH, Lin YY, Ge JW, Li XX, Gu Z, Zhao CR. Effects of AQP5 gene silencing on proliferation, migration and apoptosis of human glioma cells through regulating EGFR/ERK/ p38 MAPK signaling pathway. Oncotarget 2018; 8:38444-38455. [PMID: 28404978 PMCID: PMC5503544 DOI: 10.18632/oncotarget.16461] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Accepted: 01/06/2017] [Indexed: 01/05/2023] Open
Abstract
We investigated the effects of aquaporin 5 (AQP5) gene silencing on the proliferation, migration and apoptosis of human glioma cells through regulating the EGFR/ERK/p38MAPK signaling pathway. qRT-PCR was applied to examine the mRNA expressions of AQP5 in five human glioma cell lines. U87-MG, U251 and LN229 cells were selected and assigned into blank, vector, AQP5 siRNA and FlagAQP5 groups. MTT assay was used to measure cell proliferation. Flow cytometry (FCM) with AnnexinV-FITC/PI double staining and PI staining were employed to analyze cell apoptosis and cell cycle respectively. Scratch test was used to detect cell migration. Western blotting was performed to determine the EGFR/ERK/p38 MAPK signaling pathway-related proteins. Results showed that the positive expression of AQP5 in primary glioblastoma was associated with the tumor size and whether complete excision was performed. The mRNA expressions of AQP5 in cell lines of U87-MG, U251 and LN229 were significantly higher than in U373 and T98G. The proliferation rates of U87-MG, U251 and LN229 cells in the AQP5 siRNA group were lower than in the vector and blank groups. The apoptosis rate increased in the AQP5 siRNA group compared with the vector group. Scratch test demonstrated that AQP5 gene silencing could suppress cell migration. Compared with the vector and blank groups, the AQP5 siRNA group showed decreased expressions of the ERK1/2, p38 MAPK, p-ERK1/2 and p-p38 MAPK proteins. AQP5 gene silencing could inhibit the cell proliferation, reduce cell migration and promote the cell apoptosis of U87-MG, U251 and LN229 by suppressing EGFR/ERK/p38 MAPK signaling pathway.
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Affiliation(s)
- Jian Yang
- Department of Neurosurgery, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, P. R. China
| | - Jian-Nan Zhang
- Operation Room, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, P. R. China
| | - Wei-Lin Chen
- Department of Neurosurgery, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, P. R. China
| | - Gui-Song Wang
- Department of Neurosurgery, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, P. R. China
| | - Qing Mao
- Department of Neurosurgery, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, P. R. China
| | - Shan-Quan Li
- Operation Room, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, P. R. China
| | - Wen-Hao Xiong
- Department of Neurosurgery, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, P. R. China
| | - Ying-Ying Lin
- Department of Neurosurgery, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, P. R. China
| | - Jian-Wei Ge
- Department of Neurosurgery, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, P. R. China
| | - Xiao-Xiong Li
- Department of Neurosurgery, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, P. R. China
| | - Zhao Gu
- Department of Neurosurgery, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, P. R. China
| | - Chun-Run Zhao
- Department of Neurosurgery, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, P. R. China
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Wang W, Li Q, Yang T, Li D, Ding F, Sun H, Bai G. Anti-cancer effect of Aquaporin 5 silencing in colorectal cancer cells in association with inhibition of Wnt/β-catenin pathway. Cytotechnology 2018; 70:615-624. [PMID: 29455395 PMCID: PMC5851956 DOI: 10.1007/s10616-017-0147-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Accepted: 09/14/2017] [Indexed: 12/21/2022] Open
Abstract
Aquaporin 5 (AQP5) is a water channel protein that is over-expressed in many tumors. Elevated expression of AQP5 is associated with poor prognosis of colorectal cancer. Yet, whether AQP5 plays a role in epithelial-mesenchymal transition (EMT) of colorectal cancer has not been reported until now. Here we aim to investigate the function of AQP5 in the EMT process of colorectal cancer. We transfected HCT116 and SW480 cells with AQP5-specific shRNA and verified the knockdown efficiency through western blotting and real-time PCR. Afterwards, scratch wound healing assay, invasion assay, gelatin zymography, immunofluorescence staining and immunoblotting were performed to assess the effect of AQP5 silencing in these two cells. The ability of migration and invasion of colorectal cancer cells was significantly impaired after AQP5 silencing. Correspondingly, the activity and expression of Matrix Metallopeptidase (MMP)-2 and MMP-9 were reduced. Moreover, the expression levels of EMT-related factors were altered: E-cadherin, Tissue Inhibitor Of Metalloproteinases (TIMP)-1 and TIMP-2 were upregulated, whereas Vimentin, N-cadherin, Plasminogen Activator, Urokinase (uPA) and Snail were downregulated following knockdown of AQP5 in colorectal cancer cells. Furthermore, the expression of Wnt1 and β-catenin was markedly decreased after AQP5 knockdown. Interestingly, the alteration of EMT-related factors mediated by AQP5 knockdown could be reversed by upregulation of β-catenin. Taken together, silencing of AQP5 restrained the migration and invasion of colorectal cancer cells, and regulated the expression of EMT-related molecules in them by inhibiting Wnt/β-catenin pathway.
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Affiliation(s)
- Wei Wang
- Department of General Surgery, The First Affiliated Hospital of Jinzhou Medical University, No. 2, Section 5, Renmin Street, Jinzhou, 121001, Liaoning, People's Republic of China
| | - Qing Li
- Department of Internal Medicine, The Third Affiliated Hospital of Jinzhou Medical University, Jinzhou, 121001, Liaoning, People's Republic of China
| | - Tao Yang
- Department of General Surgery, The First Affiliated Hospital of Jinzhou Medical University, No. 2, Section 5, Renmin Street, Jinzhou, 121001, Liaoning, People's Republic of China
| | - Dongsheng Li
- Department of General Surgery, The First Affiliated Hospital of Jinzhou Medical University, No. 2, Section 5, Renmin Street, Jinzhou, 121001, Liaoning, People's Republic of China
| | - Feng Ding
- Department of General Surgery, The First Affiliated Hospital of Jinzhou Medical University, No. 2, Section 5, Renmin Street, Jinzhou, 121001, Liaoning, People's Republic of China
| | - Hongzhi Sun
- Department of General Surgery, The First Affiliated Hospital of Jinzhou Medical University, No. 2, Section 5, Renmin Street, Jinzhou, 121001, Liaoning, People's Republic of China
| | - Guang Bai
- Department of General Surgery, The First Affiliated Hospital of Jinzhou Medical University, No. 2, Section 5, Renmin Street, Jinzhou, 121001, Liaoning, People's Republic of China.
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Chang YL, Jian KR, Lin CS, Wang HW, Liu SC. Dexamethasone attenuates methacholine-mediated aquaporin 5 downregulation in human nasal epithelial cells via suppression of NF-κB activation. Int Forum Allergy Rhinol 2017; 8:64-71. [PMID: 29083535 DOI: 10.1002/alr.22035] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Revised: 10/05/2017] [Accepted: 10/08/2017] [Indexed: 12/31/2022]
Abstract
BACKGROUND Cholinergic stimulation plays a major role in inflammatory airway diseases. However, its role in airway surface liquid homeostasis and aquaporin 5 (AQP5) regulation remains unclear. In this study we sought to determine the effects of methacholine and dexamethasone on AQP5 expression in human nasal epithelial cells (HNEpC). METHODS HNEpC were cultured with methacholine or dexamethasone at 4 concentrations in vitro. The subcellular distribution of AQP5 was explored using immunocytochemistry. The pharmacologic effects of methacholine and dexamethasone on the expression of the phosphorylation of cyclic adenosine monophosphate-responsive element binding protein (p-CREB), AQP5, and nuclear factor-kappaB (NF-κB) were examined using Western blotting. RESULTS AQP5 was found to be located in cell membrane and cytoplasm and present in every group without a statistically significant difference. Methacholine inhibited expression of AQP5 and p-CREB in HNEpC, whereas dexamethasone increased these protein levels dose-dependently in a statistically significant manner. In turn, HNEpC treated with methacholine and dexamethasone showed the same trends as those intervened separately with these 2 drugs. Moreover, dexamethasone had the ability to reverse the inhibitory effect of methacholine. Western blotting revealed that, after incubation with 10-4 mol/L methacholine, NF-κB increased significantly, by 186.67%, compared with the untreated control group. Again, such an increase could be significantly reversed after dexamethasone treatment. CONCLUSION NF-κB activation is important for inhibition of p-CREB/AQP5 expression after methacholine intervention, and dexamethasone adjusts it to the opposite side. This observation could provide additional insight into the anti-inflammatory effects of glucocorticoids that contribute to maintaining airway surface liquid and mucosal defense.
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Affiliation(s)
- Yung-Lung Chang
- Department of Biochemistry, National Defense Medical Center, Taipei, Taiwan, Republic of China
| | - Kai Ren Jian
- Department of Biochemistry, National Defense Medical Center, Taipei, Taiwan, Republic of China
| | - Chun-Shu Lin
- Department of Radiation Oncology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, Republic of China
| | - Hsing-Won Wang
- Department of Otolaryngology-Head and Neck Surgery, Tri-Service General Hospital, National Defense Medical Center.,Department of Otolaryngology-Head and Neck Surgery, Shuang Ho Hospital, Taipei, Taiwan, Republic of China
| | - Shao-Cheng Liu
- Department of Otolaryngology-Head and Neck Surgery, Tri-Service General Hospital, National Defense Medical Center
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Jensen HH, Login FH, Park JY, Kwon TH, Nejsum LN. Immunohistochemical evalulation of activated Ras and Rac1 as potential downstream effectors of aquaporin-5 in breast cancer in vivo. Biochem Biophys Res Commun 2017; 493:1210-1216. [PMID: 28958942 DOI: 10.1016/j.bbrc.2017.09.125] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Accepted: 09/23/2017] [Indexed: 11/29/2022]
Abstract
Aberrant levels of aquaporin-5 (AQP5) expression have been observed in several types of cancer, including breast cancer, where AQP5 overexpression is associated with metastasis and poor prognosis. In cultured cancer cells, AQP5 facilitates cell migration and activates Ras signaling. Both increased cell migration and Ras activation are associated with cancer metastasis, but so far it is unknown if AQP5 also affects these processes in vivo. Therefore, we investigated if high AQP5 expression in breast cancer tissue correlated with increased activation of Ras and of Rac1, which is a GTPase also involved in cell migration. This was accomplished by immunohistochemical analysis of invasive ductal carcinoma of breast tissue sections from human patients, followed by qualitative and quantitative correlation analysis between AQP5 and activated Ras and Rac1. Immunohistochemistry revealed that activation of Ras and Rac1 was positively correlated. There was, however, no correlation between high AQP5 expression and activation of Ras, whereas a nonsignificant, but positive, tendency between the levels of AQP5 and activated Rac1 levels was observed. In summary, this is the first report that correlates AQP5 expression levels to downstream signaling partners in breast cancer tissue sections. The results suggest Rac1 as a potential downstream signaling partner of AQP5 in vivo.
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Affiliation(s)
- Helene H Jensen
- Department of Clinical Medicine, Aarhus University, DK-8000, Aarhus, Denmark; Department of Molecular Biology and Genetics, Aarhus University, DK-8000, Aarhus, Denmark
| | - Frédéric H Login
- Department of Clinical Medicine, Aarhus University, DK-8000, Aarhus, Denmark
| | - Ji-Young Park
- Department of Pathology, School of Medicine, Kyungpook National University, Taegu, 41944, South Korea
| | - Tae-Hwan Kwon
- Department of Biochemistry and Cell Biology, School of Medicine, Kyungpook National University, Taegu, 41944, South Korea.
| | - Lene N Nejsum
- Department of Clinical Medicine, Aarhus University, DK-8000, Aarhus, Denmark.
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