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Calamita G, Delporte C. Insights into the Function of Aquaporins in Gastrointestinal Fluid Absorption and Secretion in Health and Disease. Cells 2023; 12:2170. [PMID: 37681902 PMCID: PMC10486417 DOI: 10.3390/cells12172170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Revised: 08/16/2023] [Accepted: 08/17/2023] [Indexed: 09/09/2023] Open
Abstract
Aquaporins (AQPs), transmembrane proteins permeable to water, are involved in gastrointestinal secretion. The secretory products of the glands are delivered either to some organ cavities for exocrine glands or to the bloodstream for endocrine glands. The main secretory glands being part of the gastrointestinal system are salivary glands, gastric glands, duodenal Brunner's gland, liver, bile ducts, gallbladder, intestinal goblet cells, exocrine and endocrine pancreas. Due to their expression in gastrointestinal exocrine and endocrine glands, AQPs fulfill important roles in the secretion of various fluids involved in food handling. This review summarizes the contribution of AQPs in physiological and pathophysiological stages related to gastrointestinal secretion.
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Affiliation(s)
- Giuseppe Calamita
- Department of Biosciences, Biotechnologies and Environment, University of Bari Aldo Moro, 70125 Bari, Italy;
| | - Christine Delporte
- Laboratory of Pathophysiological and Nutritional Biochemistry, Faculty of Medicine, Université Libre de Bruxelles, 1070 Brussels, Belgium
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Calamita G, Delporte C. Aquaporins in Glandular Secretion. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2023; 1398:225-249. [PMID: 36717498 DOI: 10.1007/978-981-19-7415-1_16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Exocrine and endocrine glands deliver their secretory product, respectively, at the surface of the target organs or within the bloodstream. The release of their products has been shown to rely on secretory mechanisms often involving aquaporins (AQPs). This chapter will provide insight into the role of AQPs in secretory glands located within the gastrointestinal tract, including salivary glands, gastric glands, duodenal Brunner's glands, liver, gallbladder, intestinal goblets cells, and pancreas, as well and in other parts of the body, including airway submucosal glands, lacrimal glands, mammary glands, and eccrine sweat glands. The involvement of AQPs in both physiological and pathophysiological conditions will also be highlighted.
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Affiliation(s)
- Giuseppe Calamita
- Department of Biosciences, Biotechnologies and Environment, University of Bari "Aldo Moro", Bari, Italy
| | - Christine Delporte
- Laboratory of Pathophysiological and Nutritional Biochemistry, Faculty of Medicine, Université Libre de Bruxelles, Brussels, Belgium.
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Jiang C, Liu Y, Wang L, Lu F. Interaction between Heavy Water and Single-Strand DNA: A SERS Study. Molecules 2022; 27:molecules27186023. [PMID: 36144761 PMCID: PMC9505314 DOI: 10.3390/molecules27186023] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Revised: 09/03/2022] [Accepted: 09/09/2022] [Indexed: 11/16/2022] Open
Abstract
The structure and function of biological macromolecules change due to intermolecular deuterium bond formation or deuterium substitution with environmental D2O. In this study, surface-enhanced Raman spectroscopy (SERS) was used to detect interaction sites between D2O and ssDNA and their action mechanisms. SERS peaks of ssDNA changed with increasing D2O proportions, and the site of action mainly involved A and G bases, whose number strengthened the interaction between sequences and D2O and hence the SERS peak intensities. Fixing the number of A and G bases prevented changes in their positions from significantly altering the map. We also identified the interaction between ssDNA sequences that easily formed a G-quadruplex structure and D2O. The amplitude of the SERS peak intensity change reflected the ssDNA structural stability and number of active sites. These findings are highly significant for exploring genetic exchanges and mutations and could be used to determine the stability and structural changes of biological macromolecules.
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Affiliation(s)
- Chengshun Jiang
- College of Pharmacy, Naval Medical University, Shanghai 200433, China
- College of Pharmacy, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China
| | - Yan Liu
- College of Pharmacy, Naval Medical University, Shanghai 200433, China
| | - Lianghua Wang
- College of Basic Medical Sciences, Naval Medical University, Shanghai 200433, China
| | - Feng Lu
- College of Pharmacy, Naval Medical University, Shanghai 200433, China
- College of Pharmacy, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China
- Shanghai Key Laboratory for Pharmaceutical Metabolite Research, Naval Medical University, Shanghai 200433, China
- Correspondence:
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Lee PJ, Pham CH, Thuy NTT, Park HJ, Lee SH, Yoo HM, Cho N. 1-Methoxylespeflorin G11 Protects HT22 Cells from Glutamate-Induced Cell Death through Inhibition of ROS Production and Apoptosis. J Microbiol Biotechnol 2021; 31:217-225. [PMID: 33397834 PMCID: PMC9705990 DOI: 10.4014/jmb.2011.11032] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 12/25/2020] [Accepted: 12/28/2020] [Indexed: 12/15/2022]
Abstract
This study aimed to investigate the neuroprotective effects of 1-methoxylespeflorin G11 (MLG), a pterocarpan, against glutamate-induced neurotoxicity in neuronal HT22 hippocampal cells. The protective effects of MLG were evaluated using MTT assay and microscopic analysis. The extent of apoptosis was studied using flow cytometric analysis performed on the damaged cells probed with annexin V/propidium iodide. Moreover, mitochondrial reactive oxygen species (ROS) were assessed using flow cytometry through MitoSOXTM Red staining. To determine mitochondrial membrane potential, staining with tetramethylrhodamine and JC-1 was performed followed by flow cytometry. The results demonstrated that MLG attenuates glutamate-induced apoptosis in HT22 cells by inhibiting intracellular ROS generation and mitochondrial dysfunction. Additionally, MLG prevented glutamate-induced apoptotic pathway in HT22 cells through upregulation of Bcl-2 and downregulation of cleaved PARP-1, AIF, and phosphorylated MAPK cascades. In addition, MLG treatment induced HO-1 expression in HT22 cells. These results suggested that MLG exhibits neuroprotective effects against glutamate-induced neurotoxicity in neuronal HT22 cells by inhibiting oxidative stress and apoptosis.
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Affiliation(s)
- Phil Jun Lee
- College of Pharmacy and Research Institute of Pharmaceutical Science and Technology, Ajou University, Suwon 6499, Republic of Korea
| | - Chau Ha Pham
- Biometrology Group, Korea Research Institute of Standards and Science (KRISS), Daejeon 34113, Republic of Korea,Department of Microbiology and Molecular Biology, Chungnam National University, Daejeon 414, Republic of Korea
| | - Nguyen Thi Thanh Thuy
- College of Pharmacy and Research Institute of Drug Development, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Hye-Jin Park
- College of Pharmacy and Research Institute of Pharmaceutical Science and Technology, Ajou University, Suwon 6499, Republic of Korea
| | - Sung Hoon Lee
- College of Pharmacy, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Hee Min Yoo
- Biometrology Group, Korea Research Institute of Standards and Science (KRISS), Daejeon 34113, Republic of Korea,H.M. Yoo Phone: +82-42-868-5362 E-mail:
| | - Namki Cho
- College of Pharmacy and Research Institute of Drug Development, Chonnam National University, Gwangju 61186, Republic of Korea,Corresponding authors N. Cho Phone: +82-62-530-2926 E-mail:
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Jandova J, Hua AB, Fimbres J, Wondrak GT. Deuterium Oxide (D 2O) Induces Early Stress Response Gene Expression and Impairs Growth and Metastasis of Experimental Malignant Melanoma. Cancers (Basel) 2021; 13:605. [PMID: 33546433 PMCID: PMC7913703 DOI: 10.3390/cancers13040605] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 01/25/2021] [Accepted: 01/29/2021] [Indexed: 11/16/2022] Open
Abstract
There are two stable isotopes of hydrogen, protium (1H) and deuterium (2H; D). Cellular stress response dysregulation in cancer represents both a major pathological driving force and a promising therapeutic target, but the molecular consequences and potential therapeutic impact of deuterium (2H)-stress on cancer cells remain largely unexplored. We have examined the anti-proliferative and apoptogenic effects of deuterium oxide (D2O; 'heavy water') together with stress response gene expression profiling in panels of malignant melanoma (A375V600E, A375NRAS, G361, LOX-IMVI), and pancreatic ductal adenocarcinoma (PANC-1, Capan-2, or MIA PaCa-2) cells with inclusion of human diploid Hs27 skin fibroblasts. Moreover, we have examined the efficacy of D2O-based pharmacological intervention in murine models of human melanoma tumor growth and metastasis. D2O-induction of apoptosis was substantiated by AV-PI flow cytometry, immunodetection of PARP-1, and pro-caspase 3 cleavage, and rescue by pan-caspase inhibition. Differential array analysis revealed early modulation of stress response gene expression in both A375 melanoma and PANC-1 adenocarcinoma cells elicited by D2O (90%; ≤6 h) (upregulated: CDKN1A, DDIT3, EGR1, GADD45A, HMOX1, NFKBIA, or SOD2 (up to 9-fold; p < 0.01)) confirmed by independent RT-qPCR analysis. Immunoblot analysis revealed rapid onset of D2O-induced stress response phospho-protein activation (p-ERK, p-JNK, p-eIF2α, or p-H2AX) or attenuation (p-AKT). Feasibility of D2O-based chemotherapeutic intervention (drinking water (30% w/w)) was demonstrated in a severe combined immunodeficiency (SCID) mouse melanoma metastasis model using luciferase-expressing A375-Luc2 cells. Lung tumor burden (visualized by bioluminescence imaging) was attenuated by D2O, and inhibition of invasiveness was also confirmed in an in vitro Matrigel transwell invasion assay. D2O supplementation also suppressed tumor growth in a murine xenograft model of human melanoma, and median survival was significantly increased without causing adverse effects. These data demonstrate for the first time that systemic D2O administration impairs growth and metastasis of malignant melanoma through the pharmacological induction of deuterium (2H)-stress.
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Affiliation(s)
| | | | | | - Georg T. Wondrak
- Department of Pharmacology and Toxicology, College of Pharmacy & UA Cancer Center, University of Arizona, Tucson, AZ 85724, USA; (J.J.); (A.B.H.); (J.F.)
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Kleemann J, Reichenbach G, Zöller N, Jäger M, Kaufmann R, Meissner M, Kippenberger S. Heavy Water Affects Vital Parameters of Human Melanoma Cells in vitro. Cancer Manag Res 2020; 12:1199-1209. [PMID: 32110094 PMCID: PMC7034964 DOI: 10.2147/cmar.s230985] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Accepted: 01/24/2020] [Indexed: 11/23/2022] Open
Abstract
Purpose Although regular water is composed of two hydrogens and one oxygen, referred to as H2O, a small amount of water on this planet contains alternative forms of elements with different molecular weights because of the addition of neutrons. The present study was dedicated to studying the effect of heavy water (D2O), in which the two hydrogens become substituted by deuterium, on the cell physiology of different human cells with particular focus on malignant melanoma cells. Methods Cells were cultured in regular medium in which the content of H2O was gradually substituted by D2O or deuterium-depleted water (DDW). Following this, the changes of basic cellular parameters, such as morphology, migration, proliferation, cell cycle, apoptosis and microtubule integrity were examined. Results It was found that raising the D2O content above the standard levels led to a concentration-dependent decrease in proliferation. Lowering the D2O levels below this level had no effect. Likewise, elevated D2O levels hampered migration. Moreover, cell-cycle analysis showed an increase of sub-G1 cells. Corroboratively, markers for apoptosis were induced (histone-associated DNA fragments, Bax, and PARP). In regard to microtubule integrity, only very high levels of D2O (75%) caused partial filament condensation. Conclusion D2O, although chemically identical with H2O, shows proapoptotic and antiproliferative effects on melanoma cells. These findings give a closer look of this interesting compound.
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Affiliation(s)
- Johannes Kleemann
- Department of Dermatology, Venereology and Allergy, Johann Wolfgang Goethe University, Frankfurt/Main, Germany
| | - Gabi Reichenbach
- Department of Dermatology, Venereology and Allergy, Johann Wolfgang Goethe University, Frankfurt/Main, Germany
| | - Nadja Zöller
- Department of Dermatology, Venereology and Allergy, Johann Wolfgang Goethe University, Frankfurt/Main, Germany
| | - Manuel Jäger
- Department of Dermatology, Venereology and Allergy, Johann Wolfgang Goethe University, Frankfurt/Main, Germany
| | - Roland Kaufmann
- Department of Dermatology, Venereology and Allergy, Johann Wolfgang Goethe University, Frankfurt/Main, Germany
| | - Markus Meissner
- Department of Dermatology, Venereology and Allergy, Johann Wolfgang Goethe University, Frankfurt/Main, Germany
| | - Stefan Kippenberger
- Department of Dermatology, Venereology and Allergy, Johann Wolfgang Goethe University, Frankfurt/Main, Germany
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Lee PJ, Park HJ, Yoo HM, Cho N. Betulin Protects HT-22 Hippocampal Cells against ER Stress through Induction of Heme Oxygenase-1 and Inhibition of ROS Production. Nat Prod Commun 2019. [DOI: 10.1177/1934578x19896684] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
A key pathologic event in neurodegenerative diseases, such as Alzheimer’s disease and Parkinson’s disease, is endoplasmic reticulum (ER) stress-induced neuronal cell death. ER stress-induced generation of reactive oxygen species (ROS) has been implicated in neurological disease processes. Betulin is one of the major triterpenoids found in Betula platyphylla that possesses several biological properties, including cytoprotective and antioxidative effects. Therefore, we investigated whether betulin could prevent ER stress-induced neurotoxicity in HT-22 hippocampal neuronal cells. We observed that betulin reduced the thapsigargin (TG, an ER stress inducer)-induced apoptosis of HT-22 cells. Moreover, the cytoprotective effects of betulin were comparable to those of tauroursodeoxycholic acid, a potent ER stress-reducing agent. In our study, we confirmed that the ER stress-induced accumulation of ROS plays an important role in HT-22 cell death. Betulin also displayed cytoprotective effects in TG-injured HT-22 cells by reducing ROS generation; these results were comparable to those for N-acetyl-L-cysteine, a known ROS inhibitor. In addition, SnPP, a heme oxygenase-1 (HO-1) inhibitor significantly blocked the cytoprotective effects and ROS scavenging activity of betulin. Based on these results, we believe that betulin-mediated induction of HO-1 may contribute to the neuroprotective effects against ER stress in HT-22 hippocampal cells. We also found that betulin significantly inhibited the TG-induced expression of CHOP and caspase-12. These results demonstrated that betulin could serve as a potential therapeutic agent against ER stress-induced neurodegenerative diseases.
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Affiliation(s)
- Phil Jun Lee
- College of Pharmacy and Research, Institute of Pharmaceutical Science and Technology (RIPST), Ajou University, Suwon, Korea
| | - Hye-Jin Park
- College of Pharmacy and Research, Institute of Pharmaceutical Science and Technology (RIPST), Ajou University, Suwon, Korea
| | - Hee Min Yoo
- Center for Bioanalysis, Korea Research Institute of Standards and Science (KRISS), Daejeon, Korea
| | - Namki Cho
- College of Pharmacy, Chonnam National University, Gwangju, Korea
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Halenova T, Zlatskiy I, Syroeshkin A, Maximova T, Pleteneva T. Deuterium-Depleted Water as Adjuvant Therapeutic Agent for Treatment of Diet-Induced Obesity in Rats. Molecules 2019; 25:E23. [PMID: 31861678 PMCID: PMC6982901 DOI: 10.3390/molecules25010023] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 12/03/2019] [Accepted: 12/12/2019] [Indexed: 12/26/2022] Open
Abstract
In this study, we present the potential application of deuterium-depleted water (DDW) for the prevention and adjuvant treatment of obesity in rats. We tested the hypothesis that DDW can alleviate diet-induced obesity (DIO) and its associated metabolic impairments. Rats fed a high-fat diet had an increased body weight index (BWI), glucose concentration, and level of certain proinflammatory cytokines; decreased levels of insulin in the serum; decreased tryptophan and serotonin in the brain, and a decreased concentration of some heavy metals in the liver. Drinking DDW at a concentration of 10 ppm deuterium/protium (D/H) ad libitum for 3 weeks restored the BWI, glucose (serum), tryptophan (brain), and serotonin (brain) levels and concentration of Zn in the liver in the DIO animals to those of the controls. The levels of proinflammatory cytokines (IL-1β, IL-6, IFNγ) and anti-inflammatory TNFα were decreased in DIO rats, while anti-inflammatory cytokine (IL-4, IL-10) levels remained at the control levels, which is indicative of a pathophysiological syndrome. In contrast, in groups of rats treated with DDW, a significant increase in anti-inflammatory (IL-4, IL-10) and proinflammatory cytokines (IFNγ) was observed. This finding indicates a reduction in systemic inflammation in obese animals treated with DDW. Similarly, the high-fat diet caused an increased level of oxidative stress products, which was accompanied by decreased activity of both superoxide dismutase and catalase, whereas the administration of DDW decreased the level of oxidative stress and enhanced antioxidant enzyme activities.
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Affiliation(s)
- Tetiana Halenova
- Taras Shevchenko National University of Kyiv, ESC "Institute of Biology and Medicine", 64 Volodymyrska Str., 01601 Kyiv, Ukraine
| | - Igor Zlatskiy
- Peoples Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St, Moscow 117198, Russia
- State Institute of Genetic and Regenerative Medicine NAMS of Ukraine, 67 Vyshgorodska Str., 04114 Kyiv, Ukraine
| | - Anton Syroeshkin
- Peoples Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St, Moscow 117198, Russia
| | - Tatiana Maximova
- Peoples Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St, Moscow 117198, Russia
| | - Tatiana Pleteneva
- Peoples Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St, Moscow 117198, Russia
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