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Azimi Mohammadabadi M, Moazzeni A, Jafarzadeh L, Faraji F, Mansourabadi AH, Safari E. Aquaporins in colorectal cancer: exploring their role in tumorigenesis, metastasis, and drug response. Hum Cell 2024; 37:917-930. [PMID: 38806940 DOI: 10.1007/s13577-024-01078-7] [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: 02/06/2024] [Accepted: 05/14/2024] [Indexed: 05/30/2024]
Abstract
Aquaporins (AQPs) are small, integral proteins facilitating water transport across plasma cell membranes in response to osmotic gradients. This family has 13 unique members (AQP0-12), which can also transport glycerol, urea, gases, and other salute small molecules. AQPs play a crucial role in the regulation of different cellular processes, including metabolism, migration, immunity, barrier function, and angiogenesis. These proteins are found to aberrantly overexpress in various cancers, including colorectal cancer (CRC). Growing evidence has explored AQPs as a potential diagnostic biomarker and therapeutic target in different cancers. However, there is no comprehensive review compiling the available information on the crucial role of AQPs in the context of colorectal cancer. This review highlights the significance of AQPs as the biomarker and regulator of tumor cells metabolism. In addition, the proliferation, angiogenesis, and metastasis of tumor cells related to AQPs expression as well as function are discussed. Understanding the AQPs prominent role in chemotherapy resistance is of great importance clinically.
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Affiliation(s)
- Maryam Azimi Mohammadabadi
- Department of Obstetrics and Gynecology, Vincent Center for Reproductive Biology, Massachusetts General Hospital, Boston, MA, USA
- Obstetrics, Gynecology and Reproductive Biology, Harvard Medical School, Boston, MA, USA
| | - Ali Moazzeni
- Department of Hematology, Faculty of Allied Medicine, Bushehr University of Medical Sciences, Bushehr, Iran
| | - Leila Jafarzadeh
- Department of Immunology, Faculty of Medicine, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Fatemeh Faraji
- Antimicrobial Resistance Research Center, Institute of Immunology and Infectious Diseases, Iran University of Medical Sciences, Tehran, Iran
| | - Amir Hossein Mansourabadi
- Department of Cellular and Molecular Medicine, University of Ottawa, 451 Smyth Road, Ottawa, ON K1H 8M5, Canada, Ottawa, Canada
- University of Ottawa, Brain and Mind Research Institute, University of Ottawa, 451 Smyth Road, Ottawa, ON K1H 8M5, Canada, Ottawa, Canada
| | - Elahe Safari
- Breast Health & Cancer Research Center, Iran University of Medical Sciences, Tehran, Iran.
- Department of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
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Kara H, Tekiner D. Distributions and expressions of Aquaporin-5 and 7 in the testes of developing male chicks. Anat Histol Embryol 2024; 53:e12978. [PMID: 37792899 DOI: 10.1111/ahe.12978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 08/16/2023] [Accepted: 09/10/2023] [Indexed: 10/06/2023]
Abstract
Aquaporins (AQPs) are integral membrane proteins that act as water channels for which a total of 13 orthologs of AQP genes in birds have been reported. Tissue expression and cellular or subcellular localization of AQPs have been poorly investigated in the male reproductive system of birds. We aimed to determine the distribution and localization of AQP5 and AQP7 proteins by immunocytochemistry in testicular tissues obtained from developing chicks (14, 21, 28, 35 and 42 days old). Totally 175 male chicks (Ross 308) were used in the study from which testicular tissue was removed, fixed in 10% formaldehyde solution, then embedded in paraffin blocks. Five μm sections were cut, mounted on poly-L-lysine slides, dried in an oven, then dehydrated using standard immunohistochemistry staining protocol. The sections were imaged with a Nikon Eclipse 50i trinocular light microscope. Immunohistochemical evaluation of the immune reactivity of AQP5 revealed a positive immune reaction in spermatocytes and interstitial areas of the testes in 14-day-old chicks. Testicular tissue AQP5 immune reactivity was observed in the tubule and the interstitial regions of 21-, 28-, 35- and 42-day-old chicks. AQP7 immune reactions were determined in the tubule and interstitial areas testes of developing chicks' testis tissue, with increasing positivity corresponding to older age. The expression of AQP5 and AQP7 appears to be species-specific due to differences in localization and expression in male chicks compared with studies of other mammals, which is likely to play an important role in regulating fluid and sperm volume. This research can serve as a base for future studies that will contribute to the understanding of the male genital system of AQPs.
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Affiliation(s)
- Hülya Kara
- Veterinary Faculty, Department of Anatomy, Atatürk University, Erzurum, Turkey
| | - Deniz Tekiner
- Veterinary Faculty, Department of Histology and Embryology, Atatürk University, Erzurum, Turkey
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Ma Q, Feng Y, Luo S, Cheng L, Tong W, Lu X, Li Y, Zhang P. The aquaporin MePIP2;7 improves MeMGT9-mediated Mg 2 + acquisition in cassava. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2023; 65:2349-2367. [PMID: 37548108 DOI: 10.1111/jipb.13552] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 08/03/2023] [Indexed: 08/08/2023]
Abstract
Aquaporins are important transmembrane water transport proteins which transport water and several neutral molecules. However, how aquaporins are involved in the synergistic transport of Mg2+ and water remains poorly understood. Here, we found that the cassava aquaporin MePIP2;7 was involved in Mg2+ transport through interaction with MeMGT9, a lower affinity magnesium transporter protein. Knockdown of MePIP2;7 in cassava led to magnesium deficiency in basal mature leaves with chlorosis and necrotic spots on their edges and starch over-accumulation. Mg2+ content was significantly decreased in leaves and roots of MePIP2;7-RNA interference (PIP-Ri) plants grown in both field and Mg2+ -free hydroponic solution. Xenopus oocyte injection analysis verified that MePIP2;7 possessed the ability to transport water only and MeMGT9 was responsible for Mg2+ efflux. More importantly, MePIP2;7 improved the transportability of Mg2+ via MeMGT9 as verified using the CM66 mutant complementation assay and Xenopus oocytes expressing system. Yeast two-hybrid, bimolecular fluorescence complementation, co-localization, and co-immunoprecipitation assays demonstrated the direct protein-protein interaction between MePIP2;7 and MeMGT9 in vivo. Mg2+ flux was significantly elevated in MePIP2;7-overexpressing lines in hydroponic solution through non-invasive micro-test technique analysis. Under Mg2+ -free condition, the retarded growth of PIP-Ri transgenic plants could be recovered with Mg2+ supplementation. Taken together, our results demonstrated the synergistic effect of the MePIP2;7 and MeMGT9 interaction in regulating water and Mg2+ absorption and transport in cassava.
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Affiliation(s)
- Qiuxiang Ma
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, 200032, China
| | - Yancai Feng
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, 200032, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Shu Luo
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, 200032, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Lu Cheng
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, 200032, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Weijing Tong
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, 200032, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xinlu Lu
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, 200032, China
| | - Youzhi Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources/College of Life Science and Technology, Guangxi University, Nanning, 530004, China
| | - Peng Zhang
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, 200032, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
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Meenakshi M, Kannan A, Jothimani M, Selvi T, Karthikeyan M, Prahalathan C, Srinivasan K. Evaluation of dual potentiality of 2,4,5-trisubstituted oxazole derivatives as aquaporin-4 inhibitors and anti-inflammatory agents in lung cells. RSC Adv 2023; 13:26111-26120. [PMID: 37664213 PMCID: PMC10472800 DOI: 10.1039/d3ra03989g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 08/15/2023] [Indexed: 09/05/2023] Open
Abstract
Inflammation is a multifaceted "second-line" adaptive defense mechanism triggered by exo/endogenous threating stimuli and inter-communicated by various inflammatory key players. Unresolved or dysregulated inflammation in lungs results in manifestation of diseases and leads to irreparable damage. Aquaporins (AQPs) are a ubiquitously expressed superfamily of intrinsic transmembrane water channel proteins that modulate the fluid homeostasis. In addition to their conventional functions, AQPs have clinical relevance to inflammation prevailing under the infectious conditions of various lung diseases and this proclaims them as appropriate biomarkers to be targeted. Hence an endeavor was undertaken to identify potential ligands to target AQP4 for the treatment of lung diseases. Oxazole being a versatile bio-potent core, a series of 2,4,5-trisubstituted oxazoles 3a-j were synthesized by a Lewis acid mediated reaction of aroylmethylidene malonates with nitriles. In silico studies conducted using the protein data bank (PDB) structure 3gd8 for AQP4 revealed that compound 3a would serve as a suitable candidate to inhibit AQP4 in human lung cells (NCI-H460). Further, in vitro studies demonstrated that compound 3a could effectively inhibit AQP4 and inflammatory cytokines in lung cells and hence it may be considered as a viable drug candidate for the treatment of various lung diseases.
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Affiliation(s)
- Maniarasu Meenakshi
- School of Chemistry, Bharathidasan University Tiruchirappalli-620024 Tamil Nadu India
| | - Arun Kannan
- Department of Biochemistry, Bharathidasan University Tiruchirappalli-620024 Tamil Nadu India
| | | | - Thangavel Selvi
- School of Chemistry, Bharathidasan University Tiruchirappalli-620024 Tamil Nadu India
| | | | - Chidambaram Prahalathan
- Department of Biochemistry, Bharathidasan University Tiruchirappalli-620024 Tamil Nadu India
| | - Kannupal Srinivasan
- School of Chemistry, Bharathidasan University Tiruchirappalli-620024 Tamil Nadu India
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Aquaporins Display a Diversity in their Substrates. J Membr Biol 2023; 256:1-23. [PMID: 35986775 DOI: 10.1007/s00232-022-00257-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 07/13/2022] [Indexed: 02/07/2023]
Abstract
Aquaporins constitute a family of transmembrane proteins that function to transport water and other small solutes across the cell membrane. Aquaporins family members are found in diverse life forms. Aquaporins share the common structural fold consisting of six transmembrane alpha helices with a central water-transporting channel. Four such monomers assemble together to form tetramers as their biological unit. Initially, aquaporins were discovered as water-transporting channels, but several studies supported their involvement in mediating the facilitated diffusion of different solutes. The so-called water channel is able to transport a variety of substrates ranging from a neutral molecule to a charged molecule or a small molecule to a bulky molecule or even a gas molecule. This article gives an overview of a diverse range of substrates conducted by aquaporin family members. Prime focus is on human aquaporins where aquaporins show a wide tissue distribution and substrate specificity leading to various physiological functions. This review also highlights the structural mechanisms leading to the transport of water and glycerol. More research is needed to understand how one common fold enables the aquaporins to transport an array of solutes.
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Tsujimoto H, Metz HC, Smith AA, Sakamoto JM, Pal U, Rasgon JL. Function and evolution of the aquaporin IsAQP1 in the Lyme disease vector Ixodes scapularis. INSECT MOLECULAR BIOLOGY 2023. [PMID: 36680546 DOI: 10.1111/imb.12833] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Accepted: 01/04/2023] [Indexed: 06/17/2023]
Abstract
Ticks are important vectors of pathogenic viruses, bacteria, and protozoans to humans, wildlife, and domestic animals. Due to their life cycles, ticks face significant challenges related to water homeostasis. When blood-feeding, they must excrete water and ions, but when off-host (for stretches lasting several months), they must conserve water to avoid desiccation. Aquaporins (AQPs), a family of membrane-bound water channels, are key players in osmoregulation in many animals but remain poorly characterized in ticks. Here, we bioinformatically identified AQP-like genes from the deer tick Ixodes scapularis and used phylogenetic approaches to map the evolution of the aquaporin gene family in arthropods. Most arachnid AQP-like sequences (including those of I. scapularis) formed a monophyletic group clustered within aquaglycerolporins (GLPs) from bacteria to vertebrates. This gene family is absent from insects, revealing divergent evolutionary paths for AQPs in different hematophagous arthropods. Next, we sequenced the full-length cDNA of I. scapularis aquaporin 1 (IsAQP1) and expressed it heterologously in Xenopus oocytes to functionally characterize its permeability to water and solutes. Additionally, we examined IsAQP1 expression across different life stages and adult female organs. We found IsAQP1 is an efficient water channel with high expression in salivary glands prior to feeding, suggesting it plays a role in osmoregulation before or during blood feeding. Its functional properties are unique: unlike most GLPs, IsAQP1 has low glycerol permeability, and unlike most AQPs, it is insensitive to mercury. Together, our results suggest IsAQP1 plays an important role in tick water balance physiology and that it may hold promise as a target of novel vector control efforts.
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Affiliation(s)
- Hitoshi Tsujimoto
- Department of Entomology, Center for Infectious Disease Dynamics and the Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, Pennsylvania, USA
- Department of Entomology, Texas A&M University, College Station, Texas, USA
| | - Hillery C Metz
- Department of Entomology, Center for Infectious Disease Dynamics and the Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, Pennsylvania, USA
| | - Alexis A Smith
- Department of Veterinary Medicine, University of Maryland, College Park, Maryland, USA
| | - Joyce M Sakamoto
- Department of Entomology, Center for Infectious Disease Dynamics and the Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, Pennsylvania, USA
| | - Utpal Pal
- Department of Veterinary Medicine, University of Maryland, College Park, Maryland, USA
| | - Jason L Rasgon
- Department of Entomology, Center for Infectious Disease Dynamics and the Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, Pennsylvania, USA
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Villalobos-López MA, Arroyo-Becerra A, Quintero-Jiménez A, Iturriaga G. Biotechnological Advances to Improve Abiotic Stress Tolerance in Crops. Int J Mol Sci 2022; 23:12053. [PMID: 36233352 PMCID: PMC9570234 DOI: 10.3390/ijms231912053] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 10/02/2022] [Accepted: 10/06/2022] [Indexed: 11/16/2022] Open
Abstract
The major challenges that agriculture is facing in the twenty-first century are increasing droughts, water scarcity, flooding, poorer soils, and extreme temperatures due to climate change. However, most crops are not tolerant to extreme climatic environments. The aim in the near future, in a world with hunger and an increasing population, is to breed and/or engineer crops to tolerate abiotic stress with a higher yield. Some crop varieties display a certain degree of tolerance, which has been exploited by plant breeders to develop varieties that thrive under stress conditions. Moreover, a long list of genes involved in abiotic stress tolerance have been identified and characterized by molecular techniques and overexpressed individually in plant transformation experiments. Nevertheless, stress tolerance phenotypes are polygenetic traits, which current genomic tools are dissecting to exploit their use by accelerating genetic introgression using molecular markers or site-directed mutagenesis such as CRISPR-Cas9. In this review, we describe plant mechanisms to sense and tolerate adverse climate conditions and examine and discuss classic and new molecular tools to select and improve abiotic stress tolerance in major crops.
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Affiliation(s)
- Miguel Angel Villalobos-López
- Laboratorio de Genómica Funcional y Biotecnología de Plantas, Centro de Investigación en Biotecnología Aplicada, Instituto Politécnico Nacional, Ex-Hacienda San Juan Molino Carretera Estatal Km 1.5, Santa Inés-Tecuexcomac-Tepetitla 90700, Tlaxcala, Mexico
| | - Analilia Arroyo-Becerra
- Laboratorio de Genómica Funcional y Biotecnología de Plantas, Centro de Investigación en Biotecnología Aplicada, Instituto Politécnico Nacional, Ex-Hacienda San Juan Molino Carretera Estatal Km 1.5, Santa Inés-Tecuexcomac-Tepetitla 90700, Tlaxcala, Mexico
| | - Anareli Quintero-Jiménez
- División de Estudios de Posgrado e Investigación, Tecnológico Nacional de México/I.T. Roque, Km. 8 Carretera Celaya-Juventino Rosas, Roque, Celaya 38110, Guanajato, Mexico
| | - Gabriel Iturriaga
- División de Estudios de Posgrado e Investigación, Tecnológico Nacional de México/I.T. Roque, Km. 8 Carretera Celaya-Juventino Rosas, Roque, Celaya 38110, Guanajato, Mexico
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Micropollutant removal capacity and stability of aquaporin incorporated biomimetic thin-film composite membranes. BIOTECHNOLOGY REPORTS 2022; 35:e00745. [PMID: 35719851 PMCID: PMC9204655 DOI: 10.1016/j.btre.2022.e00745] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 06/02/2022] [Accepted: 06/04/2022] [Indexed: 11/22/2022]
Abstract
Aquaporins increase the micropollutant removal capacity of TFC nanofiltration membranes. Biomimetic membrane prepared with Halomonas elongata aquaporin is applicable for micropollutant rejection. Aquaporin incorporated membrane is stable for six months period. Type of aquaporin and pore size of the membrane affect micropollutant rejection rates.
Aquaporin incorporated nanofiltration membranes have high potential for future applications on separation processes. In this study, performance of biomimetic thin-film composite membranes containing Halomonas elongata and Escherichia coli aquaporins with different affinity tags for the removal of micropollutants was investigated.% rejection of the membranes for atrazine, terbutryn, triclosan, and diuron varied between 66.7% and 90.3% depending on the type of aquaporin and micropollutant. The highest removal rate was achieved with a membrane containing H. elongata aquaporin for atrazine and terbutryn which have methyl branching in their structure. Electrostatic interactions between micropollutants, thin-film layer of the membrane, and tags of aquaporins may also play important role in rejection of micropollutants. Stability experiments showed that biomimetic membranes can be used for six months period without a remarkable decrease in% rejection. Membrane used 24 times for atrazine removal for a year period lost most of its ability to repel atrazine.
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Benga G, Cox G. Light and Scanning Electron Microscopy of Red Blood Cells From Humans and Animal Species Providing Insights into Molecular Cell Biology. Front Physiol 2022; 13:838071. [PMID: 35845990 PMCID: PMC9283769 DOI: 10.3389/fphys.2022.838071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 03/22/2022] [Indexed: 11/13/2022] Open
Abstract
We reviewed the many discoveries in cell biology, made since the 17th century, which have been based on red blood cells (RBCs). The advances in molecular and structural biology in the past 40 years have enabled the discovery with these cells, most notably, of the first water channel protein (WCP) called today aquaporin1 (AQP1). The main aim of our work reviewed was to examine by light and electron microscopy a very wide range of RBCs from reptiles, birds, monotremes, marsupials and placentals, in order to estimate from these images the RBC cell volume and surface area. The diffusional water permeability of the RBC membrane from these species has further been measured with a nuclear magnetic resonance (NMR) spectroscopy technique. The significance of the observed permeability of RBCs to water and possible influences on the whole body are discussed.
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Affiliation(s)
- Gheorghe Benga
- Romanian Academy, Cluj-Napoca, Romania
- School of Life and Environmental Sciences, Faculty of Science, University of Sydney, Darlington, NSW, Australia
- *Correspondence: Gheorghe Benga, ; Guy Cox,
| | - Guy Cox
- Australian Centre for Microscopy & Microanalysis, University of Sydney, Darlington, NSW, Australia
- *Correspondence: Gheorghe Benga, ; Guy Cox,
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Xu B, Liang S, Zhao J, Li X, Guo J, Xin B, Li B, Huo G, Ma W. Bifidobacterium animalis subsp. lactis XLTG11 improves antibiotic-related diarrhea by alleviating inflammation, enhancing intestinal barrier function and regulating intestinal flora. Food Funct 2022; 13:6404-6418. [PMID: 35616024 DOI: 10.1039/d1fo04305f] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Antibiotic-associated diarrhea (AAD) is a common side effect during antibiotic treatment. In this study, we evaluated the regulatory effect of Bifidobacterium animalis subsp. lactis XLTG11 on mouse diarrhea caused by antibiotic-induced intestinal flora disturbance. Then, two strains of Bifidobacterium animalis subsp. lactis XLTG11 and Bifidobacterium animalis subsp. lactis BB-12 were administered to AAD mice. We found that the recovery effect of using B. lactis XLTG11 was better than that of B. lactis BB-12. B. lactis XLTG11 reduced the pathological characteristics of the intestinal tract, and significantly reduced the levels of lipopolysaccharide (LPS), D-lactic acid (D-LA) and diamine oxidase (DAO) to decrease intestinal permeability. In addition, these two strains significantly increased the expression of aquaporin and tight junction proteins, and inhibited toll-like receptor 4 (TLR4)/activation of the nuclear factor-κB (NF-κB) signaling pathway, significantly increased the levels of anti-inflammatory cytokines and decreased levels of pro-inflammatory cytokines. Moreover, after treatment with B. lactis XLTG11, the contents of acetic acid, propionic acid, butyric acid and total short-chain fatty acids were significantly increased. Compared with the MC group, B. lactis XLTG11 increased the abundance and diversity of the intestinal flora and changed the composition of the intestinal flora. We found that B. lactis XLTG11 can promote the recovery of intestinal flora and mucosal barrier function, thereby effectively improving AAD-related symptoms, providing a scientific basis for future clinical applications.
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Affiliation(s)
- Baofeng Xu
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin 150030, China. .,Food College, Northeast Agricultural University, Harbin 150030, China. .,Heilongjiang Key Laboratory of Genetic and Metabolic Engineering of Lactic Acid Bacteria, Harbin 150030, China
| | - Shengnan Liang
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin 150030, China. .,Food College, Northeast Agricultural University, Harbin 150030, China. .,Heilongjiang Key Laboratory of Genetic and Metabolic Engineering of Lactic Acid Bacteria, Harbin 150030, China
| | - Jiayi Zhao
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin 150030, China. .,Food College, Northeast Agricultural University, Harbin 150030, China. .,Heilongjiang Key Laboratory of Genetic and Metabolic Engineering of Lactic Acid Bacteria, Harbin 150030, China
| | - Xuetong Li
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin 150030, China. .,Food College, Northeast Agricultural University, Harbin 150030, China. .,Heilongjiang Key Laboratory of Genetic and Metabolic Engineering of Lactic Acid Bacteria, Harbin 150030, China
| | - Jiayao Guo
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin 150030, China. .,Food College, Northeast Agricultural University, Harbin 150030, China. .,Heilongjiang Key Laboratory of Genetic and Metabolic Engineering of Lactic Acid Bacteria, Harbin 150030, China
| | - Bowen Xin
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin 150030, China. .,Food College, Northeast Agricultural University, Harbin 150030, China. .,Heilongjiang Key Laboratory of Genetic and Metabolic Engineering of Lactic Acid Bacteria, Harbin 150030, China
| | - Bailiang Li
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin 150030, China. .,Food College, Northeast Agricultural University, Harbin 150030, China. .,Heilongjiang Key Laboratory of Genetic and Metabolic Engineering of Lactic Acid Bacteria, Harbin 150030, China
| | - Guicheng Huo
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin 150030, China. .,Food College, Northeast Agricultural University, Harbin 150030, China. .,Heilongjiang Key Laboratory of Genetic and Metabolic Engineering of Lactic Acid Bacteria, Harbin 150030, China
| | - Weiwei Ma
- College of Pharmacy, Heilongjiang University of Chinese Medicine, Haerbin 150000, China.
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Falato M, Chan R, Chen LY. Aquaglyceroporin AQP7's affinity for its substrate glycerol: Have we reached convergence in the computed values of glycerol-aquaglyceroporin affinity? RSC Adv 2022; 12:3128-3135. [PMID: 35222995 PMCID: PMC8870571 DOI: 10.1039/d1ra07367b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Accepted: 01/18/2022] [Indexed: 12/02/2022] Open
Abstract
AQP7 is one of the four human aquaglyceroporins that facilitate glycerol transport across the cell membrane, a biophysical process that is essential in human physiology. Therefore, it is interesting to compute AQP7's affinity for its substrate (glycerol) with reasonable certainty to compare with the experimental data suggesting high affinity in contrast with most computational studies predicting low affinity. In this study aimed at computing the AQP7-glycerol affinity with high confidence, we implemented a direct computation of the affinity from unbiased equilibrium molecular dynamics (MD) simulations of three all-atom systems constituted with 0.16M, 4.32M, and 10.23M atoms, respectively. These three sets of simulations manifested a fundamental physics law that the intrinsic fluctuations of pressure in a system are inversely proportional to the system size (the number of atoms in it). These simulations showed that the computed values of glycerol-AQP7 affinity are dependent upon the system size (the inverse affinity estimations were, respectively, 47.3 mM, 1.6 mM, and 0.92 mM for the three model systems). In this, we obtained a lower bound for the AQP7-glycerol affinity (an upper bound for the dissociation constant). Namely, the AQP7-glycerol affinity is stronger than 1087/M (the dissociation constant is less than 0.92 mM). Additionally, we conducted hyper steered MD (hSMD) simulations to map out the Gibbs free-energy profile. From the free-energy profile, we produced an independent computation of the AQP7-glycerol dissociation constant being approximately 0.18 mM.
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Affiliation(s)
- Michael Falato
- Department of Physics, University of Texas at San AntonioSan AntonioTexas 78249USA
| | - Ruth Chan
- Department of Physics, University of Texas at San AntonioSan AntonioTexas 78249USA
| | - Liao Y. Chen
- Department of Physics, University of Texas at San AntonioSan AntonioTexas 78249USA
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12
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Benga G. Remembrance of Petre T. Frangopol (1933–2020) the promoter of scientometrics in Romania. Scientometrics 2021. [DOI: 10.1007/s11192-021-04213-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Jiang FW, Yang ZY, Bian YF, Cui JG, Zhang H, Zhao Y, Li JL. The novel role of the aquaporin water channel in lycopene preventing DEHP-induced renal ionic homeostasis disturbance in mice. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 226:112836. [PMID: 34601266 DOI: 10.1016/j.ecoenv.2021.112836] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Revised: 09/08/2021] [Accepted: 09/22/2021] [Indexed: 06/13/2023]
Abstract
Di-(2-ethylhexyl) phthalate (DEHP), an extensively used plasticizer, can cause environmental pollution and organ injury. Lycopene (LYC) is a natural carotene that has the potential to prevent chronic diseases. To reveal the effect of DEHP and/or LYC on the kidney, male mice were treated with LYC (5 mg/kg) and/or DEHP (500 mg/kg or 1000 mg/kg) by gavage for 28 days. The study indicated that DEHP caused glomerular atrophy, tubular expansion, disappearance of the mitochondrial membrane, and cristae rupture. DEHP exposure can increase the expression of aquaporin (AQP) subunits and the activity of Ca2+-Mg2+-ATPase and decrease the activity of Na+-K+-ATPase, which results in ion disorder. However, LYC can relieve kidney injury by regulating the activity of ATPase, the expression of ATPase subunits, and AQP subunit expression. The results indicated that AQP was a target for LYC in antagonizing the disturbance of DEHP-induced renal damage.
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Affiliation(s)
- Fu-Wei Jiang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Zhou-Yi Yang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Yu-Feng Bian
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Jia-Gen Cui
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Hao Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Yi Zhao
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China.
| | - Jin-Long Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China; Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, China; Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin 150030, PR China.
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14
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Immunohistochemical Expression of AQP2 and HSP70 in Broiler Kidney Tissue Treated with Salix tetrasperma Roxb. Extract under Heat Exposure. ScientificWorldJournal 2021; 2021:8711286. [PMID: 34707467 PMCID: PMC8545545 DOI: 10.1155/2021/8711286] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 09/08/2021] [Accepted: 10/05/2021] [Indexed: 11/18/2022] Open
Abstract
The administration of plant extracts to broilers may be a way to mitigate the effects of heat stress. The importance of AQP2 and HSP70 compounds in maintaining the homeostasis of the chicken body when it is subjected to heat stress is well established. This study aims to determine the effect of giving the ethanolic extract of the leaves of Salix tetrasperma Roxb. on the immunohistochemical expression of AQP2 and HSP70 in exposed and unexposed broiler kidney tissue. This study used 36 samples of 28-day-old chicken kidneys. Chickens were kept in individual cages, provided with feed and drinking water ad libitum. The design used was a completely randomized design with 6 treatments and 6 replications: (a) chickens were reared in conditions exposed to heat (HS + 0); (b) chickens were reared in conditions exposed to heat and given Salix extract at a dose of 50 mg/L drinking water (HS + 50); (c) chickens were reared under heat-exposed conditions and given Salix extract at a dose of 100 mg/L drinking water (HS + 100); (d) chickens were reared in conditions without exposure to heat (n-HS + 0); (e) chickens were reared in conditions without exposure to heat and given Salix extract at a dose of 50 mg/L drinking water (nHS + 50); and (f) chickens were reared in conditions exposed without exposure to heat and given 100 mg/L drinking water (nHS + 100) of Salix extract. Salix extract was given for 24 hours and was renewed every 6 hours. The results showed that giving Salix extract 100 mg/L in drinking water to chickens exposed to heat (HS + 100) reduced the value of the H/L ratio. Giving Salix extract 50–100 mg/L in drinking water caused an upregulated AQP2 expression; on the other hand, it downregulated HSP-70 expression, in chicken kidney tubules both exposed to heat stress and nonexposed to heat stress. In conclusion, exposure to heat stress in broiler chickens and giving Salix extract can increase the formation of aquaporin 2 compounds and suppress the formation of HSP70.
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15
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The role of AQP3 and AQP4 channels in cisplatin-induced cardiovascular edema and the protective effect of melatonin. Mol Biol Rep 2021; 48:7457-7465. [PMID: 34657253 DOI: 10.1007/s11033-021-06763-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Accepted: 09/15/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND The present study evaluates the development of edema, the change in the AQP3, AQP4, p53 and Bax gene expressions, and the protective effects of melatonin in rat hearts administered with cisplatin. METHODS AND RESULTS A total of 28 Wistar albino rats were divided into four groups. The vehicle was administered intraperitoneally (i.p.) to the rats in the control group. The melatonin group (Mel) received melatonin at a dose of 10 mg/kg for 13 days. The cisplatin group (Cis) received cisplatin on days 1, 5, 9 and 13 at a dose of 4 mg/kg. The rats in the cisplatin + melatonin (Cis+Mel) group underwent the procedures both in the Mel and Cis groups. Blood and left ventricular samples were taken and analyzed on day 14 of the study. AQP3, p53 and Bax gene expressions were found to be significantly increased following cisplatin administration compared to the control, while melatonin administration significantly decreased the expression of these genes (p < 0.05). Melatonin administration also significantly decreased the level of AQP4 gene expression compared to the cis. On histological examination, congestion, hemorrhage, extracellular and intracellular edema, and degenerative changes were significantly more common in the Cis than in the control. Melatonin administration significantly decreased intracellular edema (p = 0.010) and degenerative changes (p = 0.010), and the improvement in extracellular edema was close to statistical significance (p = 0.051) in melatonin. CONCLUSIONS These results indicate that melatonin had an ameliorative effect on myocardial edema and AQP channels, and that it may be used as a protective molecule against myocardial edema secondary to cisplatin administration.
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16
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Wang J, Lei Y, Yu Y, Yin L, Zhang Y. Use of Acetic Acid to Partially Replace Lactic Acid for Decontamination against Escherichia coli O157:H7 in Fresh Produce and Mechanism of Action. Foods 2021; 10:2406. [PMID: 34681456 PMCID: PMC8535275 DOI: 10.3390/foods10102406] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 10/06/2021] [Accepted: 10/07/2021] [Indexed: 11/16/2022] Open
Abstract
Escherichia coli O157:H7 is frequently detected in ready-to-eat produce and causes serious food-borne diseases. The decontamination efficacy of lactic acid (LA) is clearly established. In this study, LA was mixed with acetic acid (AA) to reduce costs while achieving consistent or better inhibitory effects. Time-kill curves and inoculation experiments using fresh-cut spinach and arugula indicated that 0.8%LA+0.2%AA shows similar antibacterial effects to those of 1%LA. To determine whether 1%LA and 0.8%LA+0.2%AA exert antibacterial effects by similar mechanisms, proteomics analysis was used. The proteins related to macromolecule localization, cellular localization, and protein unfolding were uniquely altered after the treatment with 1%LA, and the proteins related to taxis, response to stress, catabolic process, and the regulation of molecular function were uniquely altered after the treatment with 0.8%LA+0.2%AA. Based on these findings, combined with the results of a network clustering analysis, we speculate that cell membrane damage is greater in response to LA than to 0.8%LA+0.2%AA. This prediction was supported by cell membrane permeability experiments (analyses of protein, nucleotide, ATP, and alkaline phosphatase leakage), which showed that LA causes greater membrane damage than 0.8%LA+0.2%AA. These results provide a theoretical basis for the application of an acid mixture to replace LA for produce decontamination.
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Affiliation(s)
- Jiayi Wang
- College of Food and Chemical Engineering, Shaoyang University, Shaoyang 422000, China; (Y.Y.); (L.Y.); (Y.Z.)
| | - Yue Lei
- Institute of Rice Research, Guizhou Academy of Agricultural, Guiyang 550009, China;
| | - Yougui Yu
- College of Food and Chemical Engineering, Shaoyang University, Shaoyang 422000, China; (Y.Y.); (L.Y.); (Y.Z.)
| | - Lebin Yin
- College of Food and Chemical Engineering, Shaoyang University, Shaoyang 422000, China; (Y.Y.); (L.Y.); (Y.Z.)
| | - Yangyang Zhang
- College of Food and Chemical Engineering, Shaoyang University, Shaoyang 422000, China; (Y.Y.); (L.Y.); (Y.Z.)
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17
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Wang Z, Cheng Y, Su W, Zhang H, Li C, Routledge MN, Gong Y, Qiao B. Organ Specific Differences in Alteration of Aquaporin Expression in Rats Treated with Sennoside A, Senna Anthraquinones and Rhubarb Anthraquinones. Int J Mol Sci 2021; 22:ijms22158026. [PMID: 34360801 PMCID: PMC8347161 DOI: 10.3390/ijms22158026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 07/17/2021] [Accepted: 07/21/2021] [Indexed: 12/12/2022] Open
Abstract
Senna and rhubarb are often used as routine laxatives, but there are differences in mechanism of action and potential side effects. Here, we studied metabolites of senna anthraquinones (SAQ), rhubarb anthraquinones (RAQ) and their chemical marker, sennoside A (SA), in a rat diarrhea model. In in vitro biotransformation experiments, SAQ, RAQ and SA were incubated with rat fecal flora solution and the metabolites produced were analyzed using HPLC. In in vivo studies, the same compounds were investigated for purgation induction, with measurement of histopathology and Aqps gene expression in six organs. The results indicated that SAQ and RAQ had similar principal constituents but could be degraded into different metabolites. A similar profile of Aqps down-regulation for all compounds was seen in the colon, suggesting a similar mechanism of action for purgation. However, in the kidneys and livers of the diarrhea-rats, down-regulation of Aqps was found in the RAQ-rats whereas up-regulation of Aqps was seen in the SAQ-rats. Furthermore, the RAQ-rats showed lower Aqp2 protein expression in the kidneys, whilst the SA-rats and SAQ-rats had higher Aqp2 protein expression in the kidneys. This may have implications for side effects of SAQ or RAQ in patients with chronic kidney or liver diseases.
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Affiliation(s)
- Zhaoyang Wang
- Key Laboratory of Resource Biology and Modern Biotechnology in Western China, Ministry of Education, Northwest University, No. 229 TaiBai North Road, Xi’an 710069, China; (Z.W.); (Y.C.); (W.S.); (H.Z.); (C.L.)
| | - Ying Cheng
- Key Laboratory of Resource Biology and Modern Biotechnology in Western China, Ministry of Education, Northwest University, No. 229 TaiBai North Road, Xi’an 710069, China; (Z.W.); (Y.C.); (W.S.); (H.Z.); (C.L.)
| | - Wenting Su
- Key Laboratory of Resource Biology and Modern Biotechnology in Western China, Ministry of Education, Northwest University, No. 229 TaiBai North Road, Xi’an 710069, China; (Z.W.); (Y.C.); (W.S.); (H.Z.); (C.L.)
| | - Hongxia Zhang
- Key Laboratory of Resource Biology and Modern Biotechnology in Western China, Ministry of Education, Northwest University, No. 229 TaiBai North Road, Xi’an 710069, China; (Z.W.); (Y.C.); (W.S.); (H.Z.); (C.L.)
| | - Chu Li
- Key Laboratory of Resource Biology and Modern Biotechnology in Western China, Ministry of Education, Northwest University, No. 229 TaiBai North Road, Xi’an 710069, China; (Z.W.); (Y.C.); (W.S.); (H.Z.); (C.L.)
| | - Michael N. Routledge
- School of Medicine, University of Leeds, Leeds LS2 9JT, UK
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
- Correspondence: (M.N.R.); (B.Q.)
| | - Yunyun Gong
- School of Food Science and Nutrition, University of Leeds, Leeds LS2 9JT, UK;
| | - Boling Qiao
- Key Laboratory of Resource Biology and Modern Biotechnology in Western China, Ministry of Education, Northwest University, No. 229 TaiBai North Road, Xi’an 710069, China; (Z.W.); (Y.C.); (W.S.); (H.Z.); (C.L.)
- Correspondence: (M.N.R.); (B.Q.)
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18
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Bird aquaporins: Molecular machinery for urine concentration. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2021; 1863:183688. [PMID: 34242632 DOI: 10.1016/j.bbamem.2021.183688] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 06/15/2021] [Accepted: 06/23/2021] [Indexed: 11/21/2022]
Abstract
Water conservation is one of the most challenging processes for terrestrial vertebrates and is necessary for their survival. Birds are the only vertebrate animals other than mammals that have the ability to concentrate their urine. Previously, we identified and characterized aquaporins (AQP)1-4 responsible for urine concentration in Japanese quail kidneys. Today, a total of 13 orthologs for these genes have been reported in birds. Bird AQPs can be classified into four subfamilies: 1) Classical AQPs (AQP0-5 and novel member, AQP4-like) that conserve the selectivity filter; 2) aquaglyceroporins (AQP3, 7, 9 and 10) that retain an aspartic acid residue in the second NPA box and expand the pore to accept larger molecules; 3) unorthodox AQPs (AQP11-12) which structurally resemble their mammalian counterparts; 4) AQP8-type, a subfamily that differs from mammalian AQP8. Interestingly, over the course of time, birds lost their mammalian counterpart AQP6 but obtained a novel AQP4-like aquaporin member. In quail and/or chicken kidneys, at least six AQPs are expressed. Quail AQP1 (qAQP1) is expressed in both cortical and medullary proximal tubules but is absent in the descending limb (DL) and the thick ascending limb (TAL), supporting our previous finding that the DL and TAL are water impermeable. AQP2, an arginine vasotocin (AVT)-sensitive water channel, is exclusively expressed in the principal cells of the collecting duct (CD). AQP4 is unlikely to participate in free water resorption from the collecting duct (CD), and only AQP3 may represent an exit pathway for water reabsorbed apically via AQP2. While AQP9 is not expressed in mammalian kidneys, AQP9 was recently found in chicken kidneys. This review summarizes the current knowledge of the structure, function and expression of bird AQPs.
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19
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Pellavio G, Laforenza U. Human sperm functioning is related to the aquaporin-mediated water and hydrogen peroxide transport regulation. Biochimie 2021; 188:45-51. [PMID: 34087390 DOI: 10.1016/j.biochi.2021.05.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 05/11/2021] [Accepted: 05/23/2021] [Indexed: 10/21/2022]
Abstract
Aquaporins (AQPs) are transmembrane water channels and some of them are permeable in addition to water to other small solutes including hydrogen peroxide. The sperm cells of mammals and fishes express different AQPs, although there is no agreement in the literature on their localization. In humans, AQP3 and AQP11 are expressed mainly in the tail, AQP7 in the head and AQP8 in the midpiece. Thanks to the results of experiments with KO mice and to data obtained by comparing sub-fertile patients with normospermic subjects, the importance of AQPs for the normal functioning of sperms to ensure normal fertility emerged. AQP3, AQP7 and AQP11 appeared involved in the sperm volume regulation, a key role for fertility because osmoadaptation protect the sperm against a swelling and tail bending that could affect sperm motility. AQP8 seems to have a fundamental role in regulating the elimination of hydrogen peroxide, the most abundant reactive oxygen species (ROS), and therefore in the response to oxidative stress. In this review, the human AQPs expression, their localization and functions, as well as their relevance in normal fertility are discussed. To understand better the AQPs role in human sperm functionality, the results of studies obtained in other animal species were also considered.
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Affiliation(s)
- Giorgia Pellavio
- Department of Molecular Medicine, Human Physiology Unit, University of Pavia, Pavia, I-27100, Italy
| | - Umberto Laforenza
- Department of Molecular Medicine, Human Physiology Unit, University of Pavia, Pavia, I-27100, Italy.
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20
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Wawrzkiewicz-Jałowiecka A, Lalik A, Soveral G. Recent Update on the Molecular Mechanisms of Gonadal Steroids Action in Adipose Tissue. Int J Mol Sci 2021; 22:5226. [PMID: 34069293 PMCID: PMC8157194 DOI: 10.3390/ijms22105226] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 05/04/2021] [Accepted: 05/11/2021] [Indexed: 02/07/2023] Open
Abstract
The gonadal steroids, including androgens, estrogens and progestogens, are involved in the control of body fat distribution in humans. Nevertheless, not only the size and localization of the fat depots depend on the sex steroids levels, but they can also highly affect the functioning of adipose tissue. Namely, the gonadocorticoids can directly influence insulin signaling, lipid metabolism, fatty acid uptake and adipokine production. They may also alter energy balance and glucose homeostasis in adipocytes in an indirect way, e.g., by changing the expression level of aquaglyceroporins. This work presents the recent advances in understanding the molecular mechanism of how the gonadal steroids influence the functioning of adipose tissue leading to a set of detrimental metabolic consequences. Special attention is given here to highlighting the sexual dimorphism of adipocyte functioning in terms of health and disease. Particularly, we discuss the molecular background of metabolic disturbances occurring in consequence of hormonal imbalance which is characteristic of some common endocrinopathies such as the polycystic ovary syndrome. From this perspective, we highlight the potential drug targets and the active substances which can be used in personalized sex-specific management of metabolic diseases, in accord with the patient's hormonal status.
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Affiliation(s)
- Agata Wawrzkiewicz-Jałowiecka
- Department of Physical Chemistry and Technology of Polymers, Silesian University of Technology, 44-100 Gliwice, Poland
| | - Anna Lalik
- Department of Systems Biology and Engineering, Silesian University of Technology, Akademicka 16, 44-100 Gliwice, Poland;
- Biotechnology Center, Silesian University of Technology, B. Krzywoustego 8, 44-100 Gliwice, Poland
| | - Graça Soveral
- Faculty of Pharmacy, Research Institute for Medicines (iMed.ULisboa), Universidade de Lisboa, 1649-003 Lisboa, Portugal;
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21
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Kell DB. A protet-based, protonic charge transfer model of energy coupling in oxidative and photosynthetic phosphorylation. Adv Microb Physiol 2021; 78:1-177. [PMID: 34147184 DOI: 10.1016/bs.ampbs.2021.01.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Textbooks of biochemistry will explain that the otherwise endergonic reactions of ATP synthesis can be driven by the exergonic reactions of respiratory electron transport, and that these two half-reactions are catalyzed by protein complexes embedded in the same, closed membrane. These views are correct. The textbooks also state that, according to the chemiosmotic coupling hypothesis, a (or the) kinetically and thermodynamically competent intermediate linking the two half-reactions is the electrochemical difference of protons that is in equilibrium with that between the two bulk phases that the coupling membrane serves to separate. This gradient consists of a membrane potential term Δψ and a pH gradient term ΔpH, and is known colloquially as the protonmotive force or pmf. Artificial imposition of a pmf can drive phosphorylation, but only if the pmf exceeds some 150-170mV; to achieve in vivo rates the imposed pmf must reach 200mV. The key question then is 'does the pmf generated by electron transport exceed 200mV, or even 170mV?' The possibly surprising answer, from a great many kinds of experiment and sources of evidence, including direct measurements with microelectrodes, indicates it that it does not. Observable pH changes driven by electron transport are real, and they control various processes; however, compensating ion movements restrict the Δψ component to low values. A protet-based model, that I outline here, can account for all the necessary observations, including all of those inconsistent with chemiosmotic coupling, and provides for a variety of testable hypotheses by which it might be refined.
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Affiliation(s)
- Douglas B Kell
- Department of Biochemistry and Systems Biology, Institute of Systems, Molecular and Integrative, Biology, University of Liverpool, Liverpool, United Kingdom; The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Lyngby, Denmark.
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Abstract
Viral infections lead to the death of more than a million people each year around the world, both directly and indirectly. Viruses interfere with many cell functions, particularly critical pathways for cell death, by affecting various intracellular mediators. MicroRNAs (miRNAs) are a major example of these mediators because they are involved in many (if not most) cellular mechanisms. Virus-regulated miRNAs have been implicated in three cell death pathways, namely, apoptosis, autophagy, and anoikis. Several molecules (e.g., BECN1 and B cell lymphoma 2 [BCL2] family members) are involved in both apoptosis and autophagy, while activation of anoikis leads to cell death similar to apoptosis. These mechanistic similarities suggest that common regulators, including some miRNAs (e.g., miR-21 and miR-192), are involved in different cell death pathways. Because the balance between cell proliferation and cell death is pivotal to the homeostasis of the human body, miRNAs that regulate cell death pathways have drawn much attention from researchers. miR-21 is regulated by several viruses and can affect both apoptosis and anoikis via modulating various targets, such as PDCD4, PTEN, interleukin (IL)-12, Maspin, and Fas-L. miR-34 can be downregulated by viral infection and has different effects on apoptosis, depending on the type of virus and/or host cell. The present review summarizes the existing knowledge on virus-regulated miRNAs involved in the modulation of cell death pathways. Understanding the mechanisms for virus-mediated regulation of cell death pathways could provide valuable information to improve the diagnosis and treatment of many viral diseases.
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Identification of Differentially Expressed Drought-Responsive Genes in Guar [ Cyamopsis tetragonoloba (L.) Taub]. Int J Genomics 2020; 2020:4147615. [PMID: 33344629 PMCID: PMC7732403 DOI: 10.1155/2020/4147615] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Accepted: 11/20/2020] [Indexed: 11/17/2022] Open
Abstract
Drought remains one of the most serious environmental stresses because of the continuous reduction in soil moisture, which requires the improvement of crops with features such as drought tolerance. Guar [Cyamopsis tetragonoloba (L.) Taub], a forage and industrial crop, is a nonthirsty plant. However, the information on the transcriptome changes that occur under drought stress in guar is very limited; therefore, a gene expression analysis is necessary in this context. Here, we studied the differentially expressed genes (DEGs) in response to drought stress and their metabolic pathways. RNA-Seq via an expectation-maximization algorithm was used to estimate gene abundance. Subsequently, an Empirical Analysis of Digital Gene Expression Data in the R Bioconductor package was used to identify DEGs. Blast2GO, InterProScan, and the Kyoto Encyclopedia of Genes and Genomes were used to explore functional annotation, protein analysis, enzymes, and metabolic pathways. Transcription factors were identified using the PlantTFDB database. Our study identified 499 upregulated and 191 downregulated genes in response to drought stress. Of those, 32 upregulated and six downregulated genes were deemed as novel genes exclusive to guar. An aggregate of 137 protein families, 306 domains, 12 repeats, and two sites were upregulated. The proton-dependent oligopeptide transporter family and transferase, aquaporin transporter, calcium/calmodulin-dependent/calcium-dependent protein kinase, aspartic peptidase A1 family, UDP-glucuronosyl/UDP-glucosyltransferase, and major intrinsic protein were the most upregulated protein families. The upregulated unigenes were associated with 88 enzymes and 77 KEGG pathways. Finally, the MYB-related, MYB, and ERF transcription factor families were upregulated. These data may be useful for understanding the plant molecular response to drought stress.
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Zannetti A, Benga G, Brunetti A, Napolitano F, Avallone L, Pelagalli A. Role of Aquaporins in the Physiological Functions of Mesenchymal Stem Cells. Cells 2020; 9:cells9122678. [PMID: 33322145 PMCID: PMC7763964 DOI: 10.3390/cells9122678] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 12/09/2020] [Accepted: 12/11/2020] [Indexed: 12/13/2022] Open
Abstract
Aquaporins (AQPs) are a family of membrane water channel proteins that control osmotically-driven water transport across cell membranes. Recent studies have focused on the assessment of fluid flux regulation in relation to the biological processes that maintain mesenchymal stem cell (MSC) physiology. In particular, AQPs seem to regulate MSC proliferation through rapid regulation of the cell volume. Furthermore, several reports have shown that AQPs play a crucial role in modulating MSC attachment to the extracellular matrix, their spread, and migration. Shedding light on how AQPs are able to regulate MSC physiological functions can increase our knowledge of their biological behaviours and improve their application in regenerative and reparative medicine.
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Affiliation(s)
- Antonella Zannetti
- Institute of Biostructure and Bioimaging, CNR, Via T. De Amicis 95, 80145 Naples, Italy
| | - Gheorghe Benga
- Romanian Academy, Cluj-Napoca Branch, Strada Republicii 9, 400015 Cluj-Napoca, Romania
| | - Arturo Brunetti
- Department of Advanced Biomedical Sciences, University of Naples Federico II, via Pansini 5, 80131 Naples, Italy
| | - Francesco Napolitano
- Department of Veterinary Medicine and Animal Production, University of Naples Federico II, via Veterinaria 1, 80137 Naples, Italy
- CEINGE-Biotecnologie Avanzate, Via Gaetano Salvatore 486, 80145 Naples, Italy
| | - Luigi Avallone
- Department of Veterinary Medicine and Animal Production, University of Naples Federico II, via Veterinaria 1, 80137 Naples, Italy
| | - Alessandra Pelagalli
- Institute of Biostructure and Bioimaging, CNR, Via T. De Amicis 95, 80145 Naples, Italy
- Department of Advanced Biomedical Sciences, University of Naples Federico II, via Pansini 5, 80131 Naples, Italy
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25
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Misztal T, Golaszewska A, Branska-Januszewska J, Marcinczyk N, Chabielska E, Tomasiak M, Rusak T. HAuCl 4, Putative General Aquaporins Blocker, Reduces Platelet Spreading, Filopodia Formation, Procoagulant Response, and Thrombus Formation Under Flow. Front Physiol 2020; 11:1025. [PMID: 32973556 PMCID: PMC7472438 DOI: 10.3389/fphys.2020.01025] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Accepted: 07/27/2020] [Indexed: 02/04/2023] Open
Abstract
Background: Recent studies indicate that aquaporin (AQP) water channels have a regulatory function in human platelet secretion and in procoagulant response of murine platelets. However, the engagement of AQPs in morphological changes, procoagulant response, and thrombus formation in human blood has never been investigated. Methods: Confocal microscopy was used to study platelet spreading, filopodia formation, ballooning, and thrombus formation under flow. Flow cytometry was utilized to assess platelet phosphatidylserine (PS) exposure and microparticles shedding. Kinetics of clot formation in vitro was evaluated by thromboelastometry. Mouse model of ferric chloride (III) (FeCl3)-induced thrombosis was used to investigate thrombus formation in vivo. Results: We found that chloroauric(III) acid (HAuCl4), a classical AQP inhibitor (10–100 μM), reduced spreading of human platelets on collagen-coated surfaces and inhibited filopodia formation in a fluid phase. Under flow conditions, HAuCl4 (100 μM) attenuated thrombi growth on collagen, platelet secretion, and PS exposure. Thrombus formation was restored by the addition of exogenous adenosine diphosphate (ADP). Collagen-evoked platelet procoagulant response (evaluated as PS exposure, shedding of microparticles, platelet-dependent thrombin generation, and membrane ballooning) was distinctly reduced by HAuCl4 (25–200 μM), as well as the dynamics of clot formation. In mouse model of thrombosis, reduction of surface of PS-positive cells within thrombus was observed in the presence of HAuCl4 (1–10 mg/kg). Conclusion: These results suggest that in human platelets AQPs are crucial for agonist-evoked morphological changes, thrombus formation under flow, and in development of procoagulant response. Antithrombotic effect in vivo suggests that nontoxic inhibitors of AQPs may be considered as potential candidates for a novel class of antiplatelet drugs.
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Affiliation(s)
- Tomasz Misztal
- Department of Physical Chemistry, Medical University of Bialystok, Bialystok, Poland
| | - Agata Golaszewska
- Department of Physical Chemistry, Medical University of Bialystok, Bialystok, Poland
| | | | - Natalia Marcinczyk
- Department of Biopharmacy, Medical University of Bialystok, Bialystok, Poland
| | - Ewa Chabielska
- Department of Biopharmacy, Medical University of Bialystok, Bialystok, Poland
| | - Marian Tomasiak
- Department of Physical Chemistry, Medical University of Bialystok, Bialystok, Poland
| | - Tomasz Rusak
- Department of Physical Chemistry, Medical University of Bialystok, Bialystok, Poland
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Expression, Distribution and Role of Aquaporins in Various Rhinologic Conditions. Int J Mol Sci 2020; 21:ijms21165853. [PMID: 32824013 PMCID: PMC7461600 DOI: 10.3390/ijms21165853] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 08/11/2020] [Accepted: 08/12/2020] [Indexed: 01/13/2023] Open
Abstract
Aquaporins (AQPs) are water-specific membrane channel proteins that regulate cellular and organismal water homeostasis. The nose, an organ with important respiratory and olfactory functions, is the first organ exposed to external stimuli. Nose-related topics such as allergic rhinitis (AR) and chronic rhinosinusitis (CRS) have been the subject of extensive research. These studies have reported that mechanisms that drive the development of multiple inflammatory diseases that occur in the nose and contribute to the process of olfactory recognition of compounds entering the nasal cavity involve the action of water channels such as AQPs. In this review, we provide a comprehensive overview of the relationship between AQPs and rhinologic conditions, focusing on the current state of knowledge and mechanisms that link AQPs and rhinologic conditions. Key conclusions include the following: (1) Various AQPs are expressed in both nasal mucosa and olfactory mucosa; (2) the expression of AQPs in these tissues is different in inflammatory diseases such as AR or CRS, as compared with that in normal tissues; (3) the expression of AQPs in CRS differs depending on the presence or absence of nasal polyps; and (4) the expression of AQPs in tissues associated with olfaction is different from that in the respiratory epithelium.
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Abstract
Aquaporins (AQPs) are transmembrane channel proteins that mainly facilitate the water translocation through the plasma cell membrane. For several years these proteins have been extensively examined for their biologic role in health and their potential implication in different diseases. Technological improvements associated with the methods employed to evaluate the functions of the AQPs have provided us with significant new knowledge. In this chapter, we will examine the role of AQPs in health and disease based on the latest currently available evidence.
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Affiliation(s)
- Dimitrios E Magouliotis
- Division of Surgery and Interventional Sciences, UCL, London, United Kingdom; Department of Surgery, University of Thessaly, Biopolis, Larissa, Greece.
| | | | - Alexis A Svokos
- Geisinger Lewisburg-Women's Health, Lewisburg, PA, United States
| | - Konstantina A Svokos
- The Warren Alpert Medical School of Brown University, Providence, RI, United States
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Pimpão C, da Silva IV, Mósca AF, Pinho JO, Gaspar MM, Gumerova NI, Rompel A, Aureliano M, Soveral G. The Aquaporin-3-Inhibiting Potential of Polyoxotungstates. Int J Mol Sci 2020; 21:E2467. [PMID: 32252345 PMCID: PMC7177757 DOI: 10.3390/ijms21072467] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Revised: 03/25/2020] [Accepted: 03/31/2020] [Indexed: 02/07/2023] Open
Abstract
Polyoxometalates (POMs) are of increasing interest due to their proven anticancer activities. Aquaporins (AQPs) were found to be overexpressed in tumors bringing particular attention to their inhibitors as anticancer drugs. Herein, we report for the first time the ability of polyoxotungstates (POTs), such as of Wells-Dawson P2W18, P2W12, and P2W15, and Preyssler P5W30 structures, to affect aquaporin-3 (AQP3) activity and impair melanoma cell migration. The tested POTs were revealed to inhibit AQP3 function with different effects, with P2W18, P2W12, and P5W30 being the most potent (50% inhibitory concentration (IC50) = 0.8, 2.8, and 3.2 µM), and P2W15 being the weakest (IC50 > 100 µM). The selectivity of P2W18 toward AQP3 was confirmed in yeast cells transformed with human aquaglyceroporins. The effect of P2W12 and P2W18 on melanoma cells that highly express AQP3 revealed an impairment of cell migration between 55% and 65% after 24 h, indicating that the anticancer properties of these compounds may in part be due to the blockage of AQP3-mediated permeability. Altogether, our data revealed that P2W18 strongly affects AQP3 activity and cancer cell growth, unveiling its potential as an anticancer drug against tumors where AQP3 is highly expressed.
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Affiliation(s)
- Catarina Pimpão
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal; (C.P.); (I.V.d.S.); (A.F.M.); (J.O.P.); (M.M.G.)
- Department of Biochemistry and Human Biology, Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
| | - Inês V. da Silva
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal; (C.P.); (I.V.d.S.); (A.F.M.); (J.O.P.); (M.M.G.)
- Department of Biochemistry and Human Biology, Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
| | - Andreia F. Mósca
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal; (C.P.); (I.V.d.S.); (A.F.M.); (J.O.P.); (M.M.G.)
- Department of Biochemistry and Human Biology, Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
| | - Jacinta O. Pinho
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal; (C.P.); (I.V.d.S.); (A.F.M.); (J.O.P.); (M.M.G.)
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
| | - Maria Manuela Gaspar
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal; (C.P.); (I.V.d.S.); (A.F.M.); (J.O.P.); (M.M.G.)
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
| | - Nadiia I. Gumerova
- Universität Wien, Fakultät für Chemie, Institut für Biophysikalische Chemie, 1090 Vienna, Austria; (N.I.G.); (A.R.)
| | - Annette Rompel
- Universität Wien, Fakultät für Chemie, Institut für Biophysikalische Chemie, 1090 Vienna, Austria; (N.I.G.); (A.R.)
| | - Manuel Aureliano
- Faculdade de Ciências e Tecnologia (FCT), CCMar, Universidade do Algarve, 8005-139 Faro, Portugal
| | - Graça Soveral
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal; (C.P.); (I.V.d.S.); (A.F.M.); (J.O.P.); (M.M.G.)
- Department of Biochemistry and Human Biology, Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
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Chen LY. Application of the Brown dynamics fluctuation-dissipation theorem to the study of Plasmodium berghei transporter protein PbAQP. FRONTIERS IN PHYSICS 2020; 8:119. [PMID: 32457897 PMCID: PMC7250396 DOI: 10.3389/fphy.2020.00119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In this article, the Brownian dynamics fluctuation-dissipation theorem (BD-FDT) is applied to the study of transport of neutral solutes across the cellular membrane of Plasmodium berghei (Pb), a disease-causing parasite. Pb infects rodents and causes symptoms in laboratory mice that are comparable to human malaria caused by Plasmodium falciparum (Pf). Due to the relative ease of its genetic engineering, P. berghei has been exploited as a model organism for the study of human malaria. P. berghei expresses one type of aquaporin (AQP), PbAQP, and, in parallel, P. falciparum expresses PfAQP. Either PbAQP or PfAQP is a multifunctional channel protein in the plasma membrane of the rodent/human malarial parasite for homeostasis of water, uptake of glycerol, and excretion of some metabolic wastes across the cell membrane. This FDT-study of the channel protein PbAQP is to elucidate how and how strongly it interacts with water, glycerol, and erythritol. It is found that erythritol, which binds deep inside the conducting pore of PbAQP/PfAQP, inhibits the channel protein's functions of conducting water, glycerol etc. This points to the possibility that erythritol, a sugar substitute, may inhibit the malarial parasites in rodents and in humans.
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Affiliation(s)
- Liao Y Chen
- Department of Physics and Astronomy, The University of Texas at San Antonio, San Antonio, Texas, USA
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Rodrigues C, Pimpão C, Mósca AF, Coxixo AS, Lopes D, da Silva IV, Pedersen PA, Antunes F, Soveral G. Human Aquaporin-5 Facilitates Hydrogen Peroxide Permeation Affecting Adaption to Oxidative Stress and Cancer Cell Migration. Cancers (Basel) 2019; 11:cancers11070932. [PMID: 31277235 PMCID: PMC6678198 DOI: 10.3390/cancers11070932] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 06/28/2019] [Accepted: 07/02/2019] [Indexed: 12/30/2022] Open
Abstract
Reactive oxygen species (ROS), including H2O2, contribute to oxidative stress and may cause cancer initiation and progression. However, at low concentrations, H2O2 can regulate signaling pathways modulating cell growth, differentiation, and migration. A few mammalian aquaporins (AQPs) facilitate H2O2 diffusion across membranes and participate in tumorigenesis. AQP3 and AQP5 are strongly expressed in cancer tissues and AQP3-mediated H2O2 transport has been related to breast cancer cell migration, but studies with human AQP5 are lacking. Here, we report that, in addition to its established water permeation capacity, human AQP5 facilitates transmembrane H2O2 diffusion and modulates cell growth of AQP5-transformed yeast cells in response to oxidative stress. Mutagenesis studies revealed that residue His173 located in the selective filter is crucial for AQP5 permeability, and interactions with phosphorylated Ser183 may regulate permeation through pore blockage. Moreover, in human pancreatic cancer cells, the measured AQP5-mediated H2O2 influx rate indicates the presence of a highly efficient peroxiporin activity. Cell migration was similarly suppressed by AQP3 or AQP5 gene silencing and could be recovered by external oxidative stimuli. Altogether, these results unveiled a major role for AQP5 in dynamic fine-tuning of the intracellular H2O2 concentration, and consequently in activating signaling networks related to cell survival and cancer progression, highlighting AQP5 as a promising drug target for cancer therapies.
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Affiliation(s)
- Claudia Rodrigues
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisboa, Portugal
- Department of Biochemistry and Human Biology, Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisboa, Portugal
| | - Catarina Pimpão
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisboa, Portugal
- Department of Biochemistry and Human Biology, Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisboa, Portugal
| | - Andreia F Mósca
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisboa, Portugal
- Department of Biochemistry and Human Biology, Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisboa, Portugal
| | - Ana S Coxixo
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisboa, Portugal
- Department of Biochemistry and Human Biology, Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisboa, Portugal
| | - Duarte Lopes
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisboa, Portugal
- Department of Biochemistry and Human Biology, Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisboa, Portugal
| | - Inês Vieira da Silva
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisboa, Portugal
- Department of Biochemistry and Human Biology, Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisboa, Portugal
| | - Per Amstrup Pedersen
- Department of Biology, University of Copenhagen, Universitetsparken 13, DK-2100 Copenhagen OE, Denmark
| | - Fernando Antunes
- Centro de Química e Bioquímica, Centro de Química Estrutural e Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal
| | - Graça Soveral
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisboa, Portugal.
- Department of Biochemistry and Human Biology, Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisboa, Portugal.
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Li W, Zhang D, Zhu G, Mi X, Guo W. Combining genome-wide and transcriptome-wide analyses reveal the evolutionary conservation and functional diversity of aquaporins in cotton. BMC Genomics 2019; 20:538. [PMID: 31262248 PMCID: PMC6604486 DOI: 10.1186/s12864-019-5928-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Accepted: 06/23/2019] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Aquaporins (AQPs) are integral membrane proteins from a larger family of major intrinsic proteins (MIPs) and function in a huge variety of processes such as water transport, plant growth and stress response. The availability of the whole-genome data of different cotton species allows us to study systematic evolution and function of cotton AQPs on a genome-wide level. RESULTS Here, a total of 53, 58, 113 and 111 AQP genes were identified in G. arboreum, G. raimondii, G. hirsutum and G. barbadense, respectively. A comprehensive analysis of cotton AQPs, involved in exon/intron structure, functional domains, phylogenetic relationships and gene duplications, divided these AQPs into five subfamilies (PIP, NIP, SIP, TIP and XIP). Comparative genome analysis among 30 species from algae to angiosperm as well as common tandem duplication events in 24 well-studied plants further revealed the evolutionary conservation of AQP family in the organism kingdom. Combining transcriptome analysis and Quantitative Real-time PCR (qRT-PCR) verification, most AQPs exhibited tissue-specific expression patterns both in G. raimondii and G. hirsutum. Meanwhile, a bias of time to peak expression of several AQPs was also detected after treating G. davidsonii and G. hirsutum with 200 mM NaCl. It is interesting that both PIP1;4 h/i/j and PIP2;2a/e showed the highly conserved tandem structure, but differentially contributed to tissue development and stress response in different cotton species. CONCLUSIONS These results demonstrated that cotton AQPs were structural conservation while experienced the functional differentiation during the process of evolution and domestication. This study will further broaden our insights into the evolution and functional elucidation of AQP gene family in cotton.
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Affiliation(s)
- Weixi Li
- State Key Laboratory of Crop Genetics & Germplasm Enhancement, Engineering Research Center of Hybrid Cotton Development Ministry of Education, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, People's Republic of China
| | - Dayong Zhang
- State Key Laboratory of Crop Genetics & Germplasm Enhancement, Engineering Research Center of Hybrid Cotton Development Ministry of Education, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, People's Republic of China
| | - Guozhong Zhu
- State Key Laboratory of Crop Genetics & Germplasm Enhancement, Engineering Research Center of Hybrid Cotton Development Ministry of Education, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, People's Republic of China
| | - Xinyue Mi
- State Key Laboratory of Crop Genetics & Germplasm Enhancement, Engineering Research Center of Hybrid Cotton Development Ministry of Education, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, People's Republic of China
| | - Wangzhen Guo
- State Key Laboratory of Crop Genetics & Germplasm Enhancement, Engineering Research Center of Hybrid Cotton Development Ministry of Education, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, People's Republic of China.
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Maroli N, Jayakrishnan A, Ramalingam Manoharan R, Kolandaivel P, Krishna K. Combined Inhibitory Effects of Citrinin, Ochratoxin-A, and T-2 Toxin on Aquaporin-2. J Phys Chem B 2019; 123:5755-5768. [DOI: 10.1021/acs.jpcb.9b03829] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Aikman B, de Almeida A, Meier-Menches SM, Casini A. Aquaporins in cancer development: opportunities for bioinorganic chemistry to contribute novel chemical probes and therapeutic agents. Metallomics 2019; 10:696-712. [PMID: 29766198 DOI: 10.1039/c8mt00072g] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Aquaporins (AQPs) are membrane proteins allowing permeation of water, glycerol & hydrogen peroxide across biomembranes, and playing an important role in water homeostasis in different organs, exocrine gland secretion, urine concentration, skin moisturization, fat metabolism and neural signal transduction. Notably, a large number of studies showed that AQPs are closely associated with cancer biological functions and expressed in more than 20 human cancer cell types. Furthermore, AQP expression is positively correlated with tumour types, grades, proliferation, migration, angiogenesis, as well as tumour-associated oedema, rendering these membrane channels attractive as both diagnostic and therapeutic targets in cancer. Recent developments in the field of AQPs modulation have identified coordination metal-based complexes as potent and selective inhibitors of aquaglyceroporins, opening new avenues in the application of inorganic compounds in medicine and chemical biology. The present review is aimed at providing an overview on AQP structure and function, mainly in relation to cancer. In this context, the exploration of coordination metal compounds as possible inhibitors of aquaporins may open the way to novel chemical approaches to study AQP roles in tumour growth and potentially to new drug families. Thus, we describe recent results in the field and reflect upon the potential of inorganic chemistry in providing compounds to modulate the activity of "elusive" membrane targets as the aquaporins.
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Affiliation(s)
- Brech Aikman
- School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, UK.
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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: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [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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Martinotti S, Laforenza U, Patrone M, Moccia F, Ranzato E. Honey-Mediated Wound Healing: H₂O₂ Entry through AQP3 Determines Extracellular Ca 2+ Influx. Int J Mol Sci 2019; 20:ijms20030764. [PMID: 30754672 PMCID: PMC6387258 DOI: 10.3390/ijms20030764] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 01/22/2019] [Accepted: 02/02/2019] [Indexed: 12/26/2022] Open
Abstract
Since Biblical times, honey has been utilized in “folk medicine”, and in recent decades the positive qualities of honey have been re-discovered and are gaining acceptance. Scientific literature states that honey has been successfully utilized on infections not responding to classic antiseptic and antibiotic therapy, because of its intrinsic H2O2 production. In our study, we demonstrated the involvement of H2O2 as a main mediator of honey regenerative effects on an immortalized human keratinocyte cell line. We observed that this extracellularly released H2O2 could pass across the plasma membrane through a specific aquaporin (i.e., AQP3). Once in the cytoplasm H2O2, in turn, induces the entry of extracellular Ca2+ through Melastatin Transient Receptor Potential 2 (TRPM2) and Orai1 channels. Honey-induced extracellular Ca2+ entry results in wound healing, which is consistent with the role played by Ca2+ signaling in tissue regeneration. This is the first report showing that honey exposure increases intracellular Ca2+ concentration ([Ca2+]i), due to H2O2 production and redox regulation of Ca2+-permeable ion channels, opening up a new horizon for the utilization of the honey as a beneficial tool.
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Affiliation(s)
- Simona Martinotti
- DiSIT-Dipartimento di Scienze e Innovazione Tecnologica, University of Piemonte Orientale, Viale Teresa Michel 11, 15121 Alessandria, Italy.
| | - Umberto Laforenza
- Department of Molecular Medicine, University of Pavia, 27100 Pavia, Italy.
| | - Mauro Patrone
- DiSIT-Dipartimento di Scienze e Innovazione Tecnologica, University of Piemonte Orientale, Viale Teresa Michel 11, 15121 Alessandria, Italy.
| | - Francesco Moccia
- Department of Biology and Biotechnology "L. Spallanzani", University of Pavia, 27100 Pavia, Italy.
| | - Elia Ranzato
- DiSIT-Dipartimento di Scienze e Innovazione Tecnologica, University of Piemonte Orientale, Piazza Sant'Eusebio 5, 13100 Vercelli, Italy.
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Wang H, Zhang L, Tao Y, Wang Z, Shen D, Dong H. Transmembrane Helices 2 and 3 Determine the Localization of Plasma Membrane Intrinsic Proteins in Eukaryotic Cells. FRONTIERS IN PLANT SCIENCE 2019; 10:1671. [PMID: 31998350 PMCID: PMC6966961 DOI: 10.3389/fpls.2019.01671] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2019] [Accepted: 11/27/2019] [Indexed: 05/12/2023]
Abstract
In plants, plasma membrane intrinsic protein (PIP) PIP1s and PIP2s mediate the transport of disparate substrates across plasma membranes (PMs), with a prerequisite that the proteins correctly localize to the PMs. While PIP2s can take correct localization by themselves in plant cells, PIP1s cannot unless aided by a specific PIP2. Here, we analyzed the localization of the Arabidopsis aquaporins, AtPIP1s, AtPIP2;4, and their mutants in yeast, Xenopus oocytes, and protoplasts of Arabidopsis. Most of AtPIP2;4 localized in the PM when expressed alone, whereas AtPIP1;1 failed to realize it in yeast and Xenopus oocytes. Switch of the transmembrane helix 2 (TM2) or TM3 from AtPIP1;1 to AtPIP2;4 disabled the latter's PM targeting activity. Surprisingly, a replacement of TM2 and TM3 of AtPIP1;1 with those of AtPIP2;4 created a PM-localized AtPIP1;1 mutant, 1;1Δ(TM2+TM3)/2;4(TM2+TM3), which could act as a water and hydrogen peroxide channel just like AtPIP2;4. A localization and function analysis on mutants of AtPIP1;2, AtPIP1;3, AtPIP1;4, and AtPIP1;5, with the same replaced TM2 and TM3 from AtPIP2;4, showed that these AtPIP1 variants could also localize in the PM spontaneously, thus playing an inherent role in transporting solutes. Sequential and structural analysis suggested that a hydrophilic residue and a defective LxxxA motif are modulators of PM localization of AtPIP1s. These results indicate that TM2 and TM3 are necessary and, more importantly, sufficient in AtPIP2 for its PM localization.
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Affiliation(s)
- Hao Wang
- Department of Plant Pathology, Nanjing Agricultural University, Nanjing, China
| | - Liyuan Zhang
- Department of Plant Pathology, Shandong Agricultural University, Taian, China
- State Key Laboratory of Crop Biology, Taian, China
| | - Yuan Tao
- Department of Plant Pathology, Nanjing Agricultural University, Nanjing, China
| | - Zuodong Wang
- Department of Plant Pathology, Shandong Agricultural University, Taian, China
- State Key Laboratory of Crop Biology, Taian, China
| | - Dan Shen
- Department of Plant Pathology, Nanjing Agricultural University, Nanjing, China
- *Correspondence: Dan Shen, ; Hansong Dong,
| | - Hansong Dong
- Department of Plant Pathology, Nanjing Agricultural University, Nanjing, China
- Department of Plant Pathology, Shandong Agricultural University, Taian, China
- State Key Laboratory of Crop Biology, Taian, China
- *Correspondence: Dan Shen, ; Hansong Dong,
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Wittekindt OH, Dietl P. Aquaporins in the lung. Pflugers Arch 2018; 471:519-532. [PMID: 30397774 PMCID: PMC6435619 DOI: 10.1007/s00424-018-2232-y] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 10/04/2018] [Accepted: 10/25/2018] [Indexed: 12/22/2022]
Abstract
The lung is the interface between air and blood where the exchange of oxygen and carbon dioxide occurs. The surface liquid that is directly exposed to the gaseous compartment covers both conducting airways and respiratory zone and forms the air-liquid interface. The barrier that separates this lining fluid of the airways and alveoli from the extracellular compartment is the pulmonary epithelium. The volume of the lining fluid must be kept in a range that guarantees an appropriate gas exchange and other functions, such as mucociliary clearance. It is generally accepted that this is maintained by balancing resorptive and secretory fluid transport across the pulmonary epithelium. Whereas osmosis is considered as the exclusive principle of fluid transport in the airways, filtration may contribute to alveolar fluid accumulation under pathologic conditions. Aquaporins (AQP) facilitate water flux across cell membranes, and as such, they provide a transcellular route for water transport across epithelia. However, their contribution to near-isosmolar fluid conditions in the lung still remains elusive. Herein, we discuss the role of AQPs in the lung with regard to fluid homeostasis across the respiratory epithelium.
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Affiliation(s)
- Oliver H Wittekindt
- Institute of General Physiology, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany.
| | - Paul Dietl
- Institute of General Physiology, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
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Cao Y, He Y, Wei C, Li J, Qu L, Zhang H, Cheng Y, Qiao B. Aquaporins Alteration Profiles Revealed Different Actions of Senna, Sennosides, and Sennoside A in Diarrhea-Rats. Int J Mol Sci 2018; 19:E3210. [PMID: 30336596 PMCID: PMC6213963 DOI: 10.3390/ijms19103210] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 09/21/2018] [Accepted: 10/12/2018] [Indexed: 01/18/2023] Open
Abstract
Senna and its main components sennosides are well-known effective laxative drugs and are used in the treatment of intestinal constipation in the world. Their potential side effects have attracted more attention in clinics but have little scientific justification. In this study, senna extract (SE), sennosides (SS), and sennoside A (SA) were prepared and used to generate diarrhea rats. The diarrhea rats were investigated with behaviors, clinical signs, organ index, pathological examination, and gene expression on multiple aquaporins (Aqps) including Aqp1, Aqp2, Aqp3, Aqp4, Aqp5, Aqp6, Aqp7, Aqp8, Aqp9, and Aqp11. Using qRT-PCR, the Aqp expression profiles were constructed for six organs including colon, kidney, liver, spleen, lung, and stomach. The Aqp alteration profiles were characterized and was performed with Principle Component Analysis (PCA). The SE treatments on the rats resulted in a significant body weight loss (p < 0.001), significant increases (p < 0.001) on the kidney index (27.72%) and liver index (42.55%), and distinguished changes with up-regulation on Aqps expressions in the kidneys and livers. The SS treatments showed prominent laxative actions and down regulation on Aqps expression in the colons. The study results indicated that the SE had more influence/toxicity on the kidneys and livers. The SS showed more powerful actions on the colons. We suggest that the caution should be particularly exercised in the patients with kidney and liver diseases when chronic using senna-based products.
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Affiliation(s)
- Yixin Cao
- Key Laboratory of Resource Biology and Modern Biotechnology in Western China, Ministry of Education, Northwest University, No. 229 TaiBai North Road, Xi'an 710069, China.
- Shaanxi Traditional Chinese Medicine Innovation Engineering Technology Research Center, No. 229 Taibai North Road, Xi'an 710069, China.
| | - Ying He
- Key Laboratory of Resource Biology and Modern Biotechnology in Western China, Ministry of Education, Northwest University, No. 229 TaiBai North Road, Xi'an 710069, China.
- Shaanxi Traditional Chinese Medicine Innovation Engineering Technology Research Center, No. 229 Taibai North Road, Xi'an 710069, China.
| | - Cong Wei
- Key Laboratory of Resource Biology and Modern Biotechnology in Western China, Ministry of Education, Northwest University, No. 229 TaiBai North Road, Xi'an 710069, China.
- Shaanxi Traditional Chinese Medicine Innovation Engineering Technology Research Center, No. 229 Taibai North Road, Xi'an 710069, China.
| | - Jing Li
- Key Laboratory of Resource Biology and Modern Biotechnology in Western China, Ministry of Education, Northwest University, No. 229 TaiBai North Road, Xi'an 710069, China.
- Shaanxi Traditional Chinese Medicine Innovation Engineering Technology Research Center, No. 229 Taibai North Road, Xi'an 710069, China.
| | - Lejing Qu
- Key Laboratory of Resource Biology and Modern Biotechnology in Western China, Ministry of Education, Northwest University, No. 229 TaiBai North Road, Xi'an 710069, China.
- Shaanxi Traditional Chinese Medicine Innovation Engineering Technology Research Center, No. 229 Taibai North Road, Xi'an 710069, China.
| | - Huiqin Zhang
- Key Laboratory of Resource Biology and Modern Biotechnology in Western China, Ministry of Education, Northwest University, No. 229 TaiBai North Road, Xi'an 710069, China.
- Shaanxi Traditional Chinese Medicine Innovation Engineering Technology Research Center, No. 229 Taibai North Road, Xi'an 710069, China.
| | - Ying Cheng
- Key Laboratory of Resource Biology and Modern Biotechnology in Western China, Ministry of Education, Northwest University, No. 229 TaiBai North Road, Xi'an 710069, China.
- Shaanxi Traditional Chinese Medicine Innovation Engineering Technology Research Center, No. 229 Taibai North Road, Xi'an 710069, China.
| | - Boling Qiao
- Key Laboratory of Resource Biology and Modern Biotechnology in Western China, Ministry of Education, Northwest University, No. 229 TaiBai North Road, Xi'an 710069, China.
- Shaanxi Traditional Chinese Medicine Innovation Engineering Technology Research Center, No. 229 Taibai North Road, Xi'an 710069, China.
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Zhou Y, Li L, Qian J, Jia H, Cui Y. Identification of three aquaporin subgroups from Blomia tropicalis by transcriptomics. Int J Mol Med 2018; 42:3551-3561. [PMID: 30221673 DOI: 10.3892/ijmm.2018.3877] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Accepted: 07/25/2018] [Indexed: 11/05/2022] Open
Abstract
Aquaporins (AQPs), or water channel proteins, are highly conserved across species. These transmembrane proteins promote water and solute transport across cell membranes. No AQP‑related proteins have been identified in mites to date. The present study used transcriptomics (RNA‑sequencing) to identify potential AQPs in the mite species Blomia tropicalis. Molecular cloning techniques were then used to obtain the full‑length gene sequences encoding these AQP family members, and bioinformatics analyses were used to categorize them based on similarity to AQPs in other species. This approach led to the identification of 5 putative AQP‑coding sequences, known as BlotAQP1‑5 (GenBank accession numbers: KX655540, KX655541, KX655542, KX655543 and KX655544, respectively), which were indexed into all three subgroups, i.e., AQPs, aquaglyceroporins and superAQPs. To the best of our knowledge, these represent the first known AQPs in any mite species. Further studies are required to investigate their functional roles in water transport and their potential as drug targets.
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Affiliation(s)
- Ying Zhou
- Department of Pediatric Laboratory, Wuxi Children's Hospital, Wuxi, Jiangsu 214023, P.R. China
| | - Ling Li
- Department of Pediatric Respiratory Medicine, Wuxi Children's Hospital, Wuxi, Jiangsu 214023, P.R. China
| | - Jun Qian
- Department of Pediatric Respiratory Medicine, Wuxi Children's Hospital, Wuxi, Jiangsu 214023, P.R. China
| | - Haoyuan Jia
- Department of Clinical Laboratory, Wuxi People's Hospital Affiliated to Nanjing Medical University, Wuxi, Jiangsu 214023, P.R. China
| | - Yubao Cui
- Department of Clinical Laboratory, Wuxi People's Hospital Affiliated to Nanjing Medical University, Wuxi, Jiangsu 214023, P.R. China
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Molinas A, Turkina MV, Magnusson KE, Mirazimi A, Vikström E. Perturbation of Wound Healing, Cytoskeletal Organization and Cellular Protein Networks during Hazara Virus Infection. Front Cell Dev Biol 2017; 5:98. [PMID: 29209610 PMCID: PMC5702460 DOI: 10.3389/fcell.2017.00098] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Accepted: 11/06/2017] [Indexed: 12/11/2022] Open
Abstract
Normal epithelial and endothelial renewal and healing after bacterial and viral challenges are essential for homeostasis along the intestine and the blood and lymphatic vessels. We thus investigated whether and how virus affects migration of human epithelial cells and specifically how the nucleocapsid protein (N) modulates the cellular proteome and interactome using human Caco-2 cells in a wound-healing assay with Hazara virus as a model. Here, Hazara virus blocked cell migration in a dose- and time-dependent manner, disrupted the actin cytoskeleton and specifically reduced the expression of the IQ-motif-containing GTPase-activating protein 1 (IQGAP1) and water channel aquaporin 6 (AQP6) that regulate cytoskeletal organization, water homeostasis and vesicle communication. Moreover, in the Caco-2 cell proteome, we identified several distinct groups of molecules associating with N upon Hazara virus infection, being involved in the ensemble of important cellular processes, e.g., chaperone activity, metabolism, cellular defense against infections, cell morphology, and migration. These events do not only facilitate the virus life cycle, but they are also crucial for membrane and cytoskeleton dynamics, cellular self-renewal and wound healing, being so essential for body integrity and homeostasis.
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Affiliation(s)
- Andrea Molinas
- Department of Clinical and Experimental Medicine, Faculty of Medicine and Health Sciences, Linköping University, Linköping, Sweden
| | - Maria V Turkina
- Department of Clinical and Experimental Medicine, Faculty of Medicine and Health Sciences, Linköping University, Linköping, Sweden
| | - Karl-Eric Magnusson
- Department of Clinical and Experimental Medicine, Faculty of Medicine and Health Sciences, Linköping University, Linköping, Sweden
| | - Ali Mirazimi
- Department of Laboratory Medicine, Karolinska Institute, Stockholm, Sweden
| | - Elena Vikström
- Department of Clinical and Experimental Medicine, Faculty of Medicine and Health Sciences, Linköping University, Linköping, Sweden
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A Review: Expression of Aquaporins in Otitis Media. Int J Mol Sci 2017; 18:ijms18102164. [PMID: 29039751 PMCID: PMC5666845 DOI: 10.3390/ijms18102164] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Revised: 10/11/2017] [Accepted: 10/11/2017] [Indexed: 12/20/2022] Open
Abstract
Otitis media (OM) refers to inflammatory diseases of the middle ear (ME), regardless of cause or pathological mechanism. Among the molecular biological studies assessing the pathology of OM are investigations of the expression of aquaporins (AQPs) in the ME and Eustachian tube (ET). To date, fifteen studies have evaluated AQPs expression in the ME and ET. Although the expression of individual AQPs varies by species and model, eleven types of AQP, AQP1 to AQP11, were found to be expressed in mammalian ME and ET. The review showed that: (1) various types of AQPs are expressed in the ME and ET; (2) AQP expression may vary by species; and (3) the distribution and levels of expression of AQPs may depend on the presence or absence of inflammation, with variations even in the same species and same tissue. Fluid accumulation in the ME and ET is a common pathological mechanism for all types of OM, causing edema in the tissue and inducing inflammation, thereby possibly involving various AQPs. The expression patterns of several AQPs, especially AQP1, 4 and 5, were found to be altered in response to inflammatory stimuli, including lipopolysaccharide (LPS), suggesting that AQPs may have immunological functions in OM.
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Wambo TO, Rodriguez RA, Chen LY. Computing osmotic permeabilities of aquaporins AQP4, AQP5, and GlpF from near-equilibrium simulations. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2017; 1859:1310-1316. [PMID: 28455098 DOI: 10.1016/j.bbamem.2017.04.022] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2017] [Revised: 04/23/2017] [Accepted: 04/24/2017] [Indexed: 12/01/2022]
Abstract
Measuring or computing the single-channel permeability of aquaporins/aquaglyceroporins (AQPs) has long been a challenge. The measured values scatter over an order of magnitude but the corresponding Arrhenius activation energies converge in the current literature. Osmotic flux through an AQP was simulated as water current forced through the channel by kilobar hydraulic pressure or theoretically approximated as single-file diffusion. In this paper, we report large scale simulations of osmotic current under sub M gradient through three AQPs (water channels AQP4 and AQP5 and glycerol-water channel GlpF) using the mature particle mesh Ewald technique (PME) for which the established force fields have been optimized with known accuracy. These simulations were implemented with hybrid periodic boundary conditions devised to avoid the artifactitious mixing across the membrane in a regular PME simulation. The computed single-channel permeabilities at 5°C and 25°C are in agreement with recently refined experiments on GlpF. The Arrhenius activation energies extracted from our simulations for all the three AQPs agree with the in vitro measurements. The single-file diffusion approximations from our large-scale simulations are consistent with the current literature on smaller systems. From these unambiguous agreements among the in vitro and in silico studies, we observe the quantitative accuracy of the all-atom force fields of the current literature for water-channel biology. We also observe that AQP4, that is particularly rich in the central nervous system, is more efficient in water conduction and more temperature-sensitive than other water-only channels (excluding glycerol channels that also conduct water when not inhibited by glycerol).
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Affiliation(s)
- Thierry O Wambo
- Department of Physics, University of Texas at San Antonio, San Antonio, TX 78249, USA
| | - Roberto A Rodriguez
- Department of Physics, University of Texas at San Antonio, San Antonio, TX 78249, USA
| | - Liao Y Chen
- Department of Physics, University of Texas at San Antonio, San Antonio, TX 78249, USA.
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Affiliation(s)
- Parisa Gazerani
- Department of Health Science & Technology, Aalborg University, Frederik Bajers Vej 7A2-A2-208, 9220 Aalborg East, Denmark
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Ishibashi K, Morishita Y, Tanaka Y. The Evolutionary Aspects of Aquaporin Family. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 969:35-50. [PMID: 28258564 DOI: 10.1007/978-94-024-1057-0_2] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Aquaporins (AQPs ) are a family of transmembrane proteins present in almost all species including virus. They are grossly divided into three subfamilies based on the sequence around a highly conserved pore-forming NPA motif: (1) classical water -selective AQP (CAQP), (2) glycerol -permeable aquaglyceroporin (AQGP) and (3) AQP super-gene channel, superaquaporin (SAQP). AQP is composed of two tandem repeats of conserved three transmembrane domains and a NPA motif. AQP ancestors probably started in prokaryotes by the duplication of half AQP genes to be diversified into CAQPs or AQGPs by evolving a subfamily-specific carboxyl-terminal NPA motif. Both AQP subfamilies may have been carried over to unicellular eukaryotic ancestors, protists and further to multicellular organisms. Although fungus lineage has kept both AQP subfamilies, the plant lineage has lost AQGP after algal ancestors with extensive diversifications of CAQPs into PIP, TIP, SIP, XIP, HIP and LIP with a possible horizontal transfer of NIP from bacteria. Interestingly, the animal lineage has obtained new SAQP subfamily with highly deviated NPA motifs, especially at the amino-terminal halves in both prostomial and deuterostomial animals. The prostomial lineage has lost AQGP after hymenoptera, while the deuterostomial lineage has kept all three subfamilies up to the vertebrate with diversified CAQPs (AQP0, 1, 2, 4, 5, 6, 8) and AQGPs (AQP3, 7, 9, 10) with limited SAQPs (AQP11, 12) in mammals. Whole-genome duplications, local gene duplications and horizontal gene transfers may have produced the AQP diversity with adaptive selections and functional alternations in response to environment changes. With the above evolutionary perspective in mind, the function of each AQP could be speculated by comparison among species to get new insights into physiological roles of AQPs . This evolutionary guidance in AQP research will lead to deeper understandings of water and solute homeostasis.
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Affiliation(s)
- Kenichi Ishibashi
- Division of Pathophysiology, Meiji Pharmaceutical University, Kiyose, Tokyo, 204-8588, Japan.
| | - Yoshiyuki Morishita
- Division of Nephrology, Saitama Medical Center, Jichi Medical University, 1-847 Ohmiya, Saitama-City, Saitama, 330-8503, Japan
| | - Yasuko Tanaka
- Division of Pathophysiology, Meiji Pharmaceutical University, Kiyose, Tokyo, 204-8588, Japan
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de Almeida A, Mósca AF, Wragg D, Wenzel M, Kavanagh P, Barone G, Leoni S, Soveral G, Casini A. The mechanism of aquaporin inhibition by gold compounds elucidated by biophysical and computational methods. Chem Commun (Camb) 2017; 53:3830-3833. [DOI: 10.1039/c7cc00318h] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The mechanism of inhibition of water and glycerol permeation via human aquaglyceroporin-3 (AQP3) by gold(iii) complexes has been described, for the first time, using molecular dynamics (MD), combined with density functional theory (DFT) and electrochemical studies.
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Affiliation(s)
| | - Andreia F. Mósca
- Research Institute for Medicines (iMed.ULisboa)
- Faculty of Pharmacy
- Universidade de Lisboa
- 1649-003 Lisboa
- Portugal
| | - Darren Wragg
- School of Chemistry
- Cardiff University
- Cardiff CF10 3AT
- UK
| | - Margot Wenzel
- School of Chemistry
- Cardiff University
- Cardiff CF10 3AT
- UK
| | - Paul Kavanagh
- School of Chemistry and Chemical Engineering
- Queen's University Belfast
- Belfast
- UK
| | - Giampaolo Barone
- Dip. di Scienze e Tecnologie Biologiche
- Chimiche e Farmaceutiche (STEBICEF)
- Università degli Studi di Palermo
- Palermo
- Italy
| | - Stefano Leoni
- School of Chemistry
- Cardiff University
- Cardiff CF10 3AT
- UK
| | - Graça Soveral
- Research Institute for Medicines (iMed.ULisboa)
- Faculty of Pharmacy
- Universidade de Lisboa
- 1649-003 Lisboa
- Portugal
| | - Angela Casini
- School of Chemistry
- Cardiff University
- Cardiff CF10 3AT
- UK
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Chicu SA, Schannen L, Putz MV, Simu GM. Hydractinia echinata test-system. IV. Toxic synergism of human pharmaceuticals in mixtures with iodoform. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2016; 134P1:80-85. [PMID: 27591706 DOI: 10.1016/j.ecoenv.2016.08.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Revised: 08/16/2016] [Accepted: 08/22/2016] [Indexed: 06/06/2023]
Abstract
The structure-toxicity relationships for a series of singular human stomatological pharmaceuticals preparations and in mixture with Iodoform on Hydractinia echinata were obtained and their synergism was analyzed through the Metamorphosis Reduction Concentration (MRC50) within the "Köln model". The differences manifested between the total and individual components of the samples and mixtures, associated with toxic versus non-toxic synergism, are dependent on three essential factors of synthesis (the nature, the concentration and the number) besides manifested isotoxicity of the given components. The method represents a practical alternative useful for the reduction of experimental tests on animal to the lowest possible level, in accordance to the '3Rs' (reduce, reuse and recycle) integrative concept.
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Affiliation(s)
| | | | - Mihai V Putz
- Laboratory of Computational and Structural Physical-Chemistry for Nanosciences and QSAR, Biology-Chemistry Department, Faculty of Chemistry, Biology, Geography at West University of Timişoara, Pestalozzi Street No.16, Timişoara RO-300115, Romania.
| | - Georgeta-M Simu
- "Victor Babes" University of Medicine and Pharmacy Timișoara, Faculty of Pharmacy, Department 1-Pharmacy, Physical Chemistry, 2 Eftimie Murgu, 300041 Timișoara, Romania.
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48
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Yu L, Rodriguez RA, Chen LL, Chen LY, Perry G, McHardy SF, Yeh CK. 1,3-propanediol binds deep inside the channel to inhibit water permeation through aquaporins. Protein Sci 2016; 25:433-41. [PMID: 26481430 DOI: 10.1002/pro.2832] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2015] [Revised: 10/15/2015] [Accepted: 10/16/2015] [Indexed: 01/10/2023]
Abstract
Aquaporins and aquaglyceroporins (AQPs) are membrane channel proteins responsible for transport of water and for transport of glycerol in addition to water across the cell membrane, respectively. They are expressed throughout the human body and also in other forms of life. Inhibitors of human AQPs have been sought for therapeutic treatment for various medical conditions including hypertension, refractory edema, neurotoxic brain edema, and so forth. Conducting all-atom molecular dynamics simulations, we computed the binding affinity of acetazolamide to human AQP4 that agrees closely with in vitro experiments. Using this validated computational method, we found that 1,3-propanediol (PDO) binds deep inside the AQP4 channel to inhibit that particular aquaporin efficaciously. Furthermore, we used the same method to compute the affinities of PDO binding to four other AQPs and one aquaglyceroporin whose atomic coordinates are available from the protein data bank (PDB). For bovine AQP1, human AQP2, AQP4, AQP5, and Plasmodium falciparum PfAQP whose structures were resolved with high resolution, we obtained definitive predictions on the PDO dissociation constant. For human AQP1 whose PDB coordinates are less accurate, we estimated the dissociation constant with a rather large error bar. Taking into account the fact that PDO is generally recognized as safe by the US FDA, we predict that PDO can be an effective diuretic which directly modulates water flow through the protein channels. It should be free from the serious side effects associated with other diuretics that change the hydro-homeostasis indirectly by altering the osmotic gradients.
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Affiliation(s)
- Lili Yu
- Department of Physics, University of Texas at San Antonio, San Antonio, Texas, 78249
| | - Roberto A Rodriguez
- Department of Physics, University of Texas at San Antonio, San Antonio, Texas, 78249
| | - L Laurie Chen
- Medical School, University of Texas Southwestern Medical Center, Dallas, Texas, 75390
| | - Liao Y Chen
- Department of Physics, University of Texas at San Antonio, San Antonio, Texas, 78249
| | - George Perry
- Department of Biology, University of Texas at San Antonio, San Antonio, Texas, 78249
| | - Stanton F McHardy
- Department of Chemistry, University of Texas at San Antonio, San Antonio, Texas, 78249
| | - Chih-Ko Yeh
- Department of Comprehensive Dentistry, University of Texas Health Science Center at San Antonio & GRECC, South Texas Veterans Health Care System, San Antonio, Texas 78229
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49
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Putative new groups of invertebrate water channels based on the snail Helix pomatia L. (Helicidae) MIP protein identification and phylogenetic analysis. Eur J Cell Biol 2016; 95:543-551. [PMID: 27662803 DOI: 10.1016/j.ejcb.2016.09.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Revised: 09/09/2016] [Accepted: 09/12/2016] [Indexed: 12/20/2022] Open
Abstract
Water channel proteins, classified as a family of Membrane Intrinsic Proteins (MIPs) superfamily, enable rapid movement of water and small uncharged molecules through biological membranes. Although water channel proteins are required in several important processes characteristic for the animals, such as osmoregulation, mucus secretion, or defense against desiccation, molluscs, until now, have been very poorly explored in this aspect. Therefore, we decided to study MIPs in Helix pomatia L. applied as a model in studies on terrestrial snail physiology. Our studies consisted in: the snail organ transcriptome sequencing and consecutive bioinformatic analysis of the predicted protein, estimation of the encoding transcript expression (qPCR), investigation of the predicted protein function in the yeast Saccharomyces cerevisiae cells, and the phylogenetic analysis. We identified six water channel proteins, named HpAQP1 to HpAQP6. All of them were proven to transport water, two of them (HpAQP3 and HpAQP4) were also shown to be able to transport glycerol, and other two (HpAQP5 and HpAQP6) to transport H2O2. Phylogenetic analysis indicated that the proteins either fell into aquaporins (HpAQP1, HpAQP2 and HpAQP5) or formed new groups of invertebrate water channel proteins, not described until now, that we suggest to term malacoglyceroporins (HpAQP3 and HpAQP4) and malacoaquaporins (HpAQP6). Thus, the classification of animal water channels based on the vertebrate proteins and including aquaporin, aquaglyceroporin, S-aquaporin and AQP8-type grades does not reflect diversity of these proteins in invertebrates. The obtained results provide important data concerning diversity of water channel protein repertoire in aquatic and terrestrial invertebrates and should also contribute to the improvement of animal water channel classification system.
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The inhibition of glycerol permeation through aquaglyceroporin-3 induced by mercury(II): A molecular dynamics study. J Inorg Biochem 2016; 160:78-84. [DOI: 10.1016/j.jinorgbio.2015.11.027] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Revised: 11/05/2015] [Accepted: 11/30/2015] [Indexed: 11/22/2022]
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