1
|
Grooms AJ, Burris BJ, Badu-Tawiah AK. Mass spectrometry for metabolomics analysis: Applications in neonatal and cancer screening. MASS SPECTROMETRY REVIEWS 2024; 43:683-712. [PMID: 36524560 PMCID: PMC10272294 DOI: 10.1002/mas.21826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 11/18/2022] [Accepted: 11/24/2022] [Indexed: 06/17/2023]
Abstract
Chemical analysis by analytical instrumentation has played a major role in disease diagnosis, which is a necessary step for disease treatment. While the treatment process often targets specific organs or compounds, the diagnostic step can occur through various means, including physical or chemical examination. Chemically, the genome may be evaluated to give information about potential genetic outcomes, the transcriptome to provide information about expression actively occurring, the proteome to offer insight on functions causing metabolite expression, or the metabolome to provide a picture of both past and ongoing physiological function in the body. Mass spectrometry (MS) has been elevated among other analytical instrumentation because it can be used to evaluate all four biological machineries of the body. In addition, MS provides enhanced sensitivity, selectivity, versatility, and speed for rapid turnaround time, qualities that are important for instance in clinical procedures involving the diagnosis of a pediatric patient in intensive care or a cancer patient undergoing surgery. In this review, we provide a summary of the use of MS to evaluate biomarkers for newborn screening and cancer diagnosis. As many reviews have recently appeared focusing on MS methods and instrumentation for metabolite analysis, we sought to describe the biological basis for many metabolomic and additional omics biomarkers used in newborn screening and how tandem MS methods have recently been applied, in comparison to traditional methods. Similar comparison is done for cancer screening, with emphasis on emerging MS approaches that allow biological fluids, tissues, and breath to be analyzed for the presence of diagnostic metabolites yielding insight for treatment options based on the understanding of prior and current physiological functions of the body.
Collapse
Affiliation(s)
- Alexander J Grooms
- Department of Chemistry and Biochemistry, The Ohio State University, Ohio, Columbus, USA
| | - Benjamin J Burris
- Department of Chemistry and Biochemistry, The Ohio State University, Ohio, Columbus, USA
| | - Abraham K Badu-Tawiah
- Department of Chemistry and Biochemistry, The Ohio State University, Ohio, Columbus, USA
| |
Collapse
|
2
|
Rather IA, Ahmad M, Talukdar P, Ali R. Probing and evaluating transmembrane chloride ion transport in double walled trifluorophenyl/phthalimide extended calix[4]pyrrole-based supramolecular receptors. J Mater Chem B 2024; 12:5950-5956. [PMID: 38804847 DOI: 10.1039/d3tb02880a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
Therapeutic applications have sparked increased interest in the use of synthetic anion receptors for ion transport across lipid membranes. In this context, the construction of synthetic transmembrane transporters for the physiologically important chloride ion is currently of enormous interest. As a result, considerable effort is being devoted to the design and synthesis of artificial transmembrane chloride ion transporters. However, only inadequate progress has been made in developing macrocyclic chloride ion transporters using the fundamental principles of supramolecular chemistry, and hence this field entails fostering investigations. In this investigation, the synthesis of two new double walled trifluorophenyl/phthalimide extended calix[4]pyrrole (C4P) receptors (3 and 7) has been successfully reported. 1H-NMR titration and HRMS studies confirmed the 1 : 1 binding stoichiometry of the chloride ion with these receptors in the solution phase (only receptor 3b was studied by 1H-NMR). Regarding ion transport of 3b and 7, when studied in the HPTS-based vesicular system, 3b showed better activity with an EC50 value of 0.39 μM. The detailed ion transport studies on 3b have revealed that ion transport occurs through the Cl-/NO3- antiport mode.
Collapse
Affiliation(s)
- Ishfaq Ahmad Rather
- Organic and Supramolecular Functional Materials Research Laboratory, Department of Chemistry, Jamia Millia Islamia, Jamia Nagar, Okhla, New Delhi 110025, India.
| | - Manzoor Ahmad
- Department of Chemistry, Indian Institute of Science Education and Research Pune, Pune 411008, Maharashtra, India.
| | - Pinaki Talukdar
- Department of Chemistry, Indian Institute of Science Education and Research Pune, Pune 411008, Maharashtra, India.
| | - Rashid Ali
- Organic and Supramolecular Functional Materials Research Laboratory, Department of Chemistry, Jamia Millia Islamia, Jamia Nagar, Okhla, New Delhi 110025, India.
| |
Collapse
|
3
|
Thévenod F, Lee WK. Cadmium transport by mammalian ATP-binding cassette transporters. Biometals 2024; 37:697-719. [PMID: 38319451 PMCID: PMC11101381 DOI: 10.1007/s10534-024-00582-5] [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: 09/15/2023] [Accepted: 01/04/2024] [Indexed: 02/07/2024]
Abstract
Cellular responses to toxic metals depend on metal accessibility to intracellular targets, reaching interaction sites, and the intracellular metal concentration, which is mainly determined by uptake pathways, binding/sequestration and efflux pathways. ATP-binding cassette (ABC) transporters are ubiquitous in the human body-usually in epithelia-and are responsible for the transfer of indispensable physiological substrates (e.g. lipids and heme), protection against potentially toxic substances, maintenance of fluid composition, and excretion of metabolic waste products. Derailed regulation and gene variants of ABC transporters culminate in a wide array of pathophysiological disease states, such as oncogenic multidrug resistance or cystic fibrosis. Cadmium (Cd) has no known physiological role in mammalians and poses a health risk due to its release into the environment as a result of industrial activities, and eventually passes into the food chain. Epithelial cells, especially within the liver, lungs, gastrointestinal tract and kidneys, are particularly susceptible to the multifaceted effects of Cd because of the plethora of uptake pathways available. Pertinent to their broad substrate spectra, ABC transporters represent a major cellular efflux pathway for Cd and Cd complexes. In this review, we summarize current knowledge concerning transport of Cd and its complexes (mainly Cd bound to glutathione) by the ABC transporters ABCB1 (P-glycoprotein, MDR1), ABCB6, ABCC1 (multidrug resistance related protein 1, MRP1), ABCC7 (cystic fibrosis transmembrane regulator, CFTR), and ABCG2 (breast cancer related protein, BCRP). Potential detoxification strategies underlying ABC transporter-mediated efflux of Cd and Cd complexes are discussed.
Collapse
Affiliation(s)
- Frank Thévenod
- Institute for Physiology, Pathophysiology and Toxicology & ZBAF, Witten/Herdecke University, 58453, Witten, Germany
- Physiology and Pathophysiology of Cells and Membranes, Medical School OWL, Bielefeld University, Morgenbreede 1, 33615, Bielefeld, Germany
| | - Wing-Kee Lee
- Physiology and Pathophysiology of Cells and Membranes, Medical School OWL, Bielefeld University, Morgenbreede 1, 33615, Bielefeld, Germany.
| |
Collapse
|
4
|
Ling QH, Fu Y, Lou ZC, Yue B, Guo C, Hu X, Lu W, Hu L, Wang W, Zhang M, Yang HB, Xu L. Naphthalene Diimide-Based Metallacage as an Artificial Ion Channel for Chloride Ion Transport. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2308181. [PMID: 38459671 DOI: 10.1002/advs.202308181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 01/06/2024] [Indexed: 03/10/2024]
Abstract
Developing synthetic molecular devices for controlling ion transmembrane transport is a promising research field in supramolecular chemistry. These artificial ion channels provide models to study ion channel diseases and have huge potential for therapeutic applications. Compared with self-assembled ion channels constructed by intermolecular weak interactions between smaller molecules or cyclic compounds, metallacage-based ion channels have well-defined structures and can exist as single components in the phospholipid bilayer. A naphthalene diimide-based artificial chloride ion channel is constructed through efficient subcomponent self-assembly and its selective ion transport activity in large unilamellar vesicles and the planar lipid bilayer membrane by fluorescence and ion-current measurements is investigated. Molecular dynamics simulations and density functional theory calculations show that the metallacage spans the entire phospholipid bilayer as an unimolecular ion transport channel. This channel transports chloride ions across the cell membrane, which disturbs the ion balance of cancer cells and inhibits the growth of cancer cells at low concentrations.
Collapse
Affiliation(s)
- Qing-Hui Ling
- State Key Laboratory of Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Shanghai Frontiers Science Center of Molecule Intelligent Syntheses, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Yuanyuan Fu
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, 200062, China
| | - Zhen-Chen Lou
- State Key Laboratory of Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Shanghai Frontiers Science Center of Molecule Intelligent Syntheses, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Bangkun Yue
- Key Laboratory of Micro-Nano Optoelectronic Devices (Wenzhou), College of Electrical and Electronic Engineering, Wenzhou University, Wenzhou, 325035, China
| | - Chenxing Guo
- College of Chemistry and Environmental Engineering, Shenzhen University, Guangdong, 518055, China
| | - Xinyu Hu
- Key Laboratory of Micro-Nano Optoelectronic Devices (Wenzhou), College of Electrical and Electronic Engineering, Wenzhou University, Wenzhou, 325035, China
| | - Weiqiang Lu
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, 200062, China
| | - Lianrui Hu
- State Key Laboratory of Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Shanghai Frontiers Science Center of Molecule Intelligent Syntheses, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Wei Wang
- State Key Laboratory of Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Shanghai Frontiers Science Center of Molecule Intelligent Syntheses, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Min Zhang
- State Key Laboratory of Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Shanghai Frontiers Science Center of Molecule Intelligent Syntheses, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Hai-Bo Yang
- State Key Laboratory of Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Shanghai Frontiers Science Center of Molecule Intelligent Syntheses, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Lin Xu
- State Key Laboratory of Molecular & Process Engineering, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Shanghai Frontiers Science Center of Molecule Intelligent Syntheses, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| |
Collapse
|
5
|
Pontes L, Reichert-Lima F, Perini Leme Giordano AL, Moretti ML, Zaninelli Schreiber A. Challenging fungal infections in cystic fibrosis: a case of mixed Aspergillus species infection and antifungal combination testing. Access Microbiol 2024; 6:000758.v3. [PMID: 38737802 PMCID: PMC11083386 DOI: 10.1099/acmi.0.000758.v3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Accepted: 02/29/2024] [Indexed: 05/14/2024] Open
Abstract
Aspergillus stands as the predominant fungal genus in the airways of cystic fibrosis (CF) patients, significantly contributing to their morbidity and mortality. Aspergillus fumigatus represents the primary causative species for infections, though the emergence of rare species within the Aspergillus section Fumigati has become noteworthy. Among these, Aspergillus lentulus is particularly significant due to its frequent misidentification and intrinsic resistance to azole antifungal agents. In the management of invasive aspergillosis and resistant infections, combination antifungal therapy has proven to be an effective approach. This report documents a case involving the death of a CF patient due to a pulmonary exacerbation linked to the colonization of multiple Aspergillus species, including A. lentulus, A. fumigatus, and A. terreus, and treated with Itraconazole (ITC) monotherapy. We delineated the procedures used to characterize the Aspergillus isolates in clinical settings and simulated in vitro the impact of the combination antifungal therapy on the isolates obtained from the patient. We evaluated three different combinations: Amphotericin B (AMB)+Voriconazole (VRC), AMB+Anidulafungin (AND), and VRC+AND. Notably, all strains isolated from the patient exhibited a significant decrease in their minimum inhibitory concentration (MIC) or minimum effective concentration (MEC) values when treated with all antifungal combinations. The VRC+AMB combination demonstrated the most synergistic effects. This case report emphasizes the critical importance of susceptibility testing and precise identification of Aspergillus species to enhance patient prognosis. It also underscores the potential benefits of combined antifungal treatment, which, in this case, could have led to a more favourable patient outcome.
Collapse
Affiliation(s)
- Laís Pontes
- School of Medical Sciences - University of Campinas, Campinas, São Paulo, Brazil
| | - Franqueline Reichert-Lima
- School of Medical Sciences in São José dos Campos – Humanitas, São José dos Campos – São Paulo, Brazil
| | | | - Maria Luiza Moretti
- School of Medical Sciences - University of Campinas, Campinas, São Paulo, Brazil
| | | |
Collapse
|
6
|
Han X, Li D, Zhu Y, Schneider-Futschik EK. Recommended Tool Compounds for Modifying the Cystic Fibrosis Transmembrane Conductance Regulator Channel Variants. ACS Pharmacol Transl Sci 2024; 7:933-950. [PMID: 38633590 PMCID: PMC11019735 DOI: 10.1021/acsptsci.3c00362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 02/20/2024] [Accepted: 02/23/2024] [Indexed: 04/19/2024]
Abstract
Cystic fibrosis (CF) is a genetic disorder arising from variations in the cystic fibrosis transmembrane conductance regulator (CFTR) gene, leading to multiple organ system defects. CFTR tool compounds are molecules that can modify the activity of the CFTR channel. Especially, patients that are currently not able to benefit from approved CFTR modulators, such as patients with rare CFTR variants, benefit from further research in discovering novel tools to modulate CFTR. This Review explores the development and classification of CFTR tool compounds, including CFTR blockers (CFTRinh-172, GlyH-101), potentiators (VRT-532, Genistein), correctors (VRT-325, Corr-4a), and other approved and unapproved modulators, with detailed descriptions and discussions for each compound. The challenges and future directions in targeting rare variants and optimizing drug delivery, and the potential synergistic effects in combination therapies are outlined. CFTR modulation holds promise not only for CF treatment but also for generating CF models that contribute to CF research and potentially treating other diseases such as secretory diarrhea. Therefore, continued research on CFTR tool compounds is critical.
Collapse
Affiliation(s)
- XiaoXuan Han
- Department of Biochemistry & Pharmacology,
School of Biomedical Sciences, Faculty of Medicine, Dentistry and
Health Sciences, The University of Melbourne, Parkville, VIC 3010, Australia
| | - Danni Li
- Department of Biochemistry & Pharmacology,
School of Biomedical Sciences, Faculty of Medicine, Dentistry and
Health Sciences, The University of Melbourne, Parkville, VIC 3010, Australia
| | - Yimin Zhu
- Department of Biochemistry & Pharmacology,
School of Biomedical Sciences, Faculty of Medicine, Dentistry and
Health Sciences, The University of Melbourne, Parkville, VIC 3010, Australia
| | - Elena K. Schneider-Futschik
- Department of Biochemistry & Pharmacology,
School of Biomedical Sciences, Faculty of Medicine, Dentistry and
Health Sciences, The University of Melbourne, Parkville, VIC 3010, Australia
| |
Collapse
|
7
|
Young PG, Levring J, Fiedorczuk K, Blanchard SC, Chen J. Structural basis for CFTR inhibition by CFTR inh-172. Proc Natl Acad Sci U S A 2024; 121:e2316675121. [PMID: 38422021 DOI: 10.1073/pnas.2316675121] [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: 09/25/2023] [Accepted: 01/12/2024] [Indexed: 03/02/2024] Open
Abstract
The cystic fibrosis transmembrane conductance regulator (CFTR) is an anion channel that regulates electrolyte and fluid balance in epithelial tissues. While activation of CFTR is vital to treating cystic fibrosis, selective inhibition of CFTR is a potential therapeutic strategy for secretory diarrhea and autosomal dominant polycystic kidney disease. Although several CFTR inhibitors have been developed by high-throughput screening, their modes of action remain elusive. In this study, we determined the structure of CFTR in complex with the inhibitor CFTRinh-172 to an overall resolution of 2.7 Å by cryogenic electron microscopy. We observe that CFTRinh-172 binds inside the pore near transmembrane helix 8, a critical structural element that links adenosine triphosphate hydrolysis with channel gating. Binding of CFTRinh-172 stabilizes a conformation in which the chloride selectivity filter is collapsed, and the pore is blocked from the extracellular side of the membrane. Single-molecule fluorescence resonance energy transfer experiments indicate that CFTRinh-172 inhibits channel gating without compromising nucleotide-binding domain dimerization. Together, these data reconcile previous biophysical observations and provide a molecular basis for the activity of this widely used CFTR inhibitor.
Collapse
Affiliation(s)
- Paul G Young
- Laboratory of Membrane Biology and Biophysics, The Rockefeller University, New York, NY 10065
- Weill Cornell/Rockefeller/Sloan Kettering Tri-Institutional MD-PhD Program, New York, NY 10065
| | - Jesper Levring
- Laboratory of Membrane Biology and Biophysics, The Rockefeller University, New York, NY 10065
| | - Karol Fiedorczuk
- Laboratory of Membrane Biology and Biophysics, The Rockefeller University, New York, NY 10065
| | - Scott C Blanchard
- Department of Structural Biology, St. Jude Children's Research Hospital, Memphis, TN 38101
| | - Jue Chen
- Laboratory of Membrane Biology and Biophysics, The Rockefeller University, New York, NY 10065
- HHMI, The Rockefeller University, New York, NY 10065
| |
Collapse
|
8
|
Thakur S, Ankita, Dash S, Verma R, Kaur C, Kumar R, Mazumder A, Singh G. Understanding CFTR Functionality: A Comprehensive Review of Tests and Modulator Therapy in Cystic Fibrosis. Cell Biochem Biophys 2024; 82:15-34. [PMID: 38048024 DOI: 10.1007/s12013-023-01200-w] [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: 10/11/2023] [Accepted: 11/13/2023] [Indexed: 12/05/2023]
Abstract
Cystic fibrosis is a genetic disorder inherited in an autosomal recessive manner. It is caused by a mutation in the Cystic Fibrosis Transmembrane Conductance Regulator (CFTR) gene on chromosome 7, which leads to abnormal regulation of chloride and bicarbonate ions in cells that line organs like the lungs and pancreas. The CFTR protein plays a crucial role in regulating chloride ion flow, and its absence or malfunction causes the production of thick mucus that affects several organs. There are more than 2000 identified mutations that are classified into seven categories based on their dysfunction mechanisms. In this article, we have conducted a thorough examination and consolidation of the diverse array of tests essential for the quantification of CFTR functionality. Furthermore, we have engaged in a comprehensive discourse regarding the recent advancements in CFTR modulator therapy, a pivotal approach utilized for the management of cystic fibrosis, alongside its concomitant relevance in evaluating CFTR functionality.
Collapse
Affiliation(s)
- Shorya Thakur
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Panjab, India
| | - Ankita
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Panjab, India
| | - Shubham Dash
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Panjab, India
| | - Rupali Verma
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Panjab, India
| | - Charanjit Kaur
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Panjab, India
| | - Rajesh Kumar
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Panjab, India
| | - Avijit Mazumder
- Noida Institute of Engineering and Technology (Pharmacy Institute), Greater Noida, UP, India
| | - Gurvinder Singh
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Panjab, India.
| |
Collapse
|
9
|
Gaudin C, Ghinnagow R, Lemaire F, Villeret B, Sermet-Gaudelus I, Sallenave JM. Abnormal functional lymphoid tolerance and enhanced myeloid exocytosis are characteristics of resting and stimulated PBMCs in cystic fibrosis patients. Front Immunol 2024; 15:1360716. [PMID: 38469306 PMCID: PMC10925672 DOI: 10.3389/fimmu.2024.1360716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Accepted: 01/30/2024] [Indexed: 03/13/2024] Open
Abstract
Introduction Cystic Fibrosis (CF) is the commonest genetically inherited disease (1 in 4,500 newborns) and 70% of people with CF (pwCF) harbour the F508Del mutation, resulting in misfolding and incorrect addressing of the channel CFTR to the epithelial membrane and subsequent dysregulation of fluid homeostasis. Although studies have underscored the importance and over-activation of myeloid cells, and in particular neutrophils in the lungs of people with CF (pwCF), relatively less emphasis has been put on the potential immunological bias in CF blood cells, at homeostasis or following stimulation/infection. Methods Here, we revisited, in an exhaustive fashion, in pwCF with mild disease (median age of 15, median % FEV1 predicted = 87), whether their PBMCs, unprimed or primed with a 'non specific' stimulus (PMA+ionomycin mix) and a 'specific' one (live P.a =PAO1 strain), were differentially activated, compared to healthy controls (HC) PBMCs. Results 1) we analysed the lymphocytic and myeloid populations present in CF and Control PBMCs (T cells, NKT, Tgd, ILCs) and their production of the signature cytokines IFN-g, IL-13, IL-17, IL-22. 2) By q-PCR, ELISA and Luminex analysis we showed that CF PBMCs have increased background cytokines and mediators production and a partial functional tolerance phenotype, when restimulated. 3) we showed that CF PBMCs low-density neutrophils release higher levels of granule components (S100A8/A9, lactoferrin, MMP-3, MMP-7, MMP-8, MMP-9, NE), demonstrating enhanced exocytosis of potentially harmful mediators. Discussion In conclusion, we demonstrated that functional lymphoid tolerance and enhanced myeloid protease activity are key features of cystic fibrosis PBMCs.
Collapse
Affiliation(s)
- Clémence Gaudin
- Laboratoire d’Excellence Inflamex, Institut National de la Santé et de la Recherche Medicale, Physiopathologie et Épidémiologie des Maladies Respiratoires, Université Paris-Cité, Paris, France
| | - Reem Ghinnagow
- Laboratoire d’Excellence Inflamex, Institut National de la Santé et de la Recherche Medicale, Physiopathologie et Épidémiologie des Maladies Respiratoires, Université Paris-Cité, Paris, France
| | - Flora Lemaire
- Laboratoire d’Excellence Inflamex, Institut National de la Santé et de la Recherche Medicale, Physiopathologie et Épidémiologie des Maladies Respiratoires, Université Paris-Cité, Paris, France
| | - Bérengère Villeret
- Laboratoire d’Excellence Inflamex, Institut National de la Santé et de la Recherche Medicale, Physiopathologie et Épidémiologie des Maladies Respiratoires, Université Paris-Cité, Paris, France
| | - Isabelle Sermet-Gaudelus
- INSERM, CNRS, Institut Necker Enfants Malades, Paris, France
- Université Paris-Cité, Paris, France
- ERN-LUNG CF Network, Frankfurt, Germany
- Centre de Ressources et de Compétence de la Mucoviscidose Pédiatrique, Hôpital Mignot, Paris, France
| | - Jean-Michel Sallenave
- Laboratoire d’Excellence Inflamex, Institut National de la Santé et de la Recherche Medicale, Physiopathologie et Épidémiologie des Maladies Respiratoires, Université Paris-Cité, Paris, France
| |
Collapse
|
10
|
Douglas J, Carter CW, Wills PR. HetMM: A Michaelis-Menten model for non-homogeneous enzyme mixtures. iScience 2024; 27:108977. [PMID: 38333698 PMCID: PMC10850774 DOI: 10.1016/j.isci.2024.108977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 11/21/2023] [Accepted: 01/16/2024] [Indexed: 02/10/2024] Open
Abstract
The Michaelis-Menten model requires its reaction velocities to come from a preparation of homogeneous enzymes, with identical or near-identical catalytic activities. However, this condition is not always met. We introduce a kinetic model that relaxes this requirement, by assuming there are an unknown number of enzyme species drawn from a probability distribution whose standard deviation is estimated. Through simulation studies, we demonstrate the method accurately discriminates between homogeneous and heterogeneous data, even with moderate levels of experimental error. We applied this model to three homogeneous and three heterogeneous biological systems, showing that the standard and heterogeneous models outperform respectively. Lastly, we show that heterogeneity is not readily distinguished from negatively cooperative binding under the Hill model. These two distinct attributes-inequality in catalytic ability and interference between binding sites-yield similar Michaelis-Menten curves that are not readily resolved without further experimentation. Our user-friendly software package allows homogeneity testing and parameter estimation.
Collapse
Affiliation(s)
- Jordan Douglas
- Department of Physics, The University of Auckland, Auckland 1010, New Zealand
- Centre for Computational Evolution, The University of Auckland, Auckland 1010, New Zealand
| | - Charles W. Carter
- Department of Biochemistry and Biophysics, University of North Carolina at Chapel Hill, NC 27599, USA
| | - Peter R. Wills
- Department of Physics, The University of Auckland, Auckland 1010, New Zealand
- Centre for Computational Evolution, The University of Auckland, Auckland 1010, New Zealand
| |
Collapse
|
11
|
Zhong Q, Cao Y, Xie X, Wu Y, Chen Z, Zhang Q, Jia C, Wu Z, Xin P, Yan X, Zeng Z, Ren C. Non-Covalently Stapled H + /Cl - Ion Channels Activatable by Visible Light for Targeted Anticancer Therapy. Angew Chem Int Ed Engl 2024; 63:e202314666. [PMID: 37864456 DOI: 10.1002/anie.202314666] [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: 09/29/2023] [Revised: 10/18/2023] [Accepted: 10/20/2023] [Indexed: 10/22/2023]
Abstract
The development of stimuli-responsive artificial H+ /Cl- ion channels, capable of specifically disturbing the intracellular ion homeostasis of cancer cells, presents an intriguing opportunity for achieving high selectivity in cancer therapy. Herein, we describe a novel family of non-covalently stapled self-assembled artificial channels activatable by biocompatible visible light at 442 nm, which enables the co-transport of H+ /Cl- across the membrane with H+ /Cl- transport selectivity of 6.0. Upon photoirradiation of the caged C4F-L for 10 min, 90 % of ion transport efficiency can be restored, giving rise to a 10.5-fold enhancement in cytotoxicity against human colorectal cancer cells (IC50 =8.5 μM). The mechanism underlying cancer cell death mediated by the H+ /Cl- channels involves the activation of the caspase 9 apoptosis pathway as well as the scarcely reported disruption of the autophagic processes. In the absence of photoirradiation, C4F-L exhibits minimal toxicity towards normal intestine cells, even at a concentration of 200 μM.
Collapse
Affiliation(s)
- Qishuo Zhong
- State Key Laboratory of Cellular Stress Biology and Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, Fujian, 361102, China
- Shenzhen Research Institute of, Xiamen University, Shenzhen, Guangdong, 518057, China
| | - Yin Cao
- State Key Laboratory of Cellular Stress Biology and Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, Fujian, 361102, China
- Shenzhen Research Institute of, Xiamen University, Shenzhen, Guangdong, 518057, China
| | - Xiaopan Xie
- State Key Laboratory of Antiviral Drugs, Pingyuan Laboratory, NMPA (National Medical Products Administration) Key Laboratory for Research and Evaluation of Innovative Drug, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan, 453007, China
| | - Yuhang Wu
- State Key Laboratory of Cellular Stress Biology and Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, Fujian, 361102, China
| | - Zhiqing Chen
- State Key Laboratory of Cellular Stress Biology and Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, Fujian, 361102, China
| | - Qiuping Zhang
- State Key Laboratory of Cellular Stress Biology and Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, Fujian, 361102, China
| | - Chunyan Jia
- State Key Laboratory of Cellular Stress Biology and Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, Fujian, 361102, China
| | - Zhen Wu
- State Key Laboratory of Cellular Stress Biology and Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, Fujian, 361102, China
| | - Pengyang Xin
- State Key Laboratory of Antiviral Drugs, Pingyuan Laboratory, NMPA (National Medical Products Administration) Key Laboratory for Research and Evaluation of Innovative Drug, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan, 453007, China
| | - Xiaosheng Yan
- State Key Laboratory of Cellular Stress Biology and Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, Fujian, 361102, China
| | - Zhiping Zeng
- State Key Laboratory of Cellular Stress Biology and Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, Fujian, 361102, China
| | - Changliang Ren
- State Key Laboratory of Cellular Stress Biology and Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, Fujian, 361102, China
- Shenzhen Research Institute of, Xiamen University, Shenzhen, Guangdong, 518057, China
| |
Collapse
|
12
|
Ersoy A, Altintel B, Livnat Levanon N, Ben-Tal N, Haliloglu T, Lewinson O. Computational analysis of long-range allosteric communications in CFTR. eLife 2023; 12:RP88659. [PMID: 38109179 PMCID: PMC10727502 DOI: 10.7554/elife.88659] [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] [Indexed: 12/19/2023] Open
Abstract
Malfunction of the CFTR protein results in cystic fibrosis, one of the most common hereditary diseases. CFTR functions as an anion channel, the gating of which is controlled by long-range allosteric communications. Allostery also has direct bearings on CF treatment: the most effective CFTR drugs modulate its activity allosterically. Herein, we integrated Gaussian network model, transfer entropy, and anisotropic normal mode-Langevin dynamics and investigated the allosteric communications network of CFTR. The results are in remarkable agreement with experimental observations and mutational analysis and provide extensive novel insight. We identified residues that serve as pivotal allosteric sources and transducers, many of which correspond to disease-causing mutations. We find that in the ATP-free form, dynamic fluctuations of the residues that comprise the ATP-binding sites facilitate the initial binding of the nucleotide. Subsequent binding of ATP then brings to the fore and focuses on dynamic fluctuations that were present in a latent and diffuse form in the absence of ATP. We demonstrate that drugs that potentiate CFTR's conductance do so not by directly acting on the gating residues, but rather by mimicking the allosteric signal sent by the ATP-binding sites. We have also uncovered a previously undiscovered allosteric 'hotspot' located proximal to the docking site of the phosphorylated regulatory (R) domain, thereby establishing a molecular foundation for its phosphorylation-dependent excitatory role. This study unveils the molecular underpinnings of allosteric connectivity within CFTR and highlights a novel allosteric 'hotspot' that could serve as a promising target for the development of novel therapeutic interventions.
Collapse
Affiliation(s)
- Ayca Ersoy
- Department of Chemical Engineering, Bogazici UniversityIstanbulTurkey
- Polymer Research Center, Bogazici UniversityIstanbulTurkey
| | - Bengi Altintel
- Department of Chemical Engineering, Bogazici UniversityIstanbulTurkey
- Polymer Research Center, Bogazici UniversityIstanbulTurkey
| | - Nurit Livnat Levanon
- Department of Molecular Microbiology, Bruce and Ruth Rappaport Faculty of Medicine, Technion-Israel Institute of TechnologyTel AvivIsrael
| | - Nir Ben-Tal
- Department of Biochemistry and Molecular Biology, Faculty of Life Sciences, Tel-Aviv UniversityTel-AvivIsrael
| | - Turkan Haliloglu
- Department of Chemical Engineering, Bogazici UniversityIstanbulTurkey
- Polymer Research Center, Bogazici UniversityIstanbulTurkey
| | - Oded Lewinson
- Department of Molecular Microbiology, Bruce and Ruth Rappaport Faculty of Medicine, Technion-Israel Institute of TechnologyTel AvivIsrael
| |
Collapse
|
13
|
Shengjia S, Lei W, Tianwei W, Hongmei W, Juanzi S, Sen Q. Compound heterozygous variants in CFTR with potentially reducing ATP-binding ability identified in Chinese infertile brothers with isolated congenital bilateral absence of vas deferens. Mol Genet Genomic Med 2023; 11:e2249. [PMID: 37489040 PMCID: PMC10655520 DOI: 10.1002/mgg3.2249] [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: 02/28/2023] [Revised: 03/23/2023] [Accepted: 07/13/2023] [Indexed: 07/26/2023] Open
Abstract
BACKGROUND Isolated congenital bilateral absence of vas deferens (iCBAVD) in men results in obstructive azoospermia and is mainly caused by pathogenic variants in cystic fibrosis transmembrane conductance regulator (CFTR) or adhesion G protein-coupled receptor G2 (ADGRG2). METHODS The next-generation sequencing (NGS) was used to screen the mutations in the proband, and Sanger sequencings were performed to validate the compound heterozygous variant of CFTR in his family members. Protein structure simulation was performed to discover the potential pathological mechanism. RESULTS This study reported novel compound heterozygous CFTR mutations (NM:000492.4, Intron: 5T; c.3965_3969dupTTGGG: p.R1325Gfs*5) in two brothers with obstructive azoospermia. The compound heterozygous CFTR mutations were first screened out by NGS in an infertile male patient who exhibited iCBAVD from a nonconsanguineous Chinese family. Histological analysis of the testicular biopsy from this patient revealed normal spermatogenesis and mature spermatozoa were observed in the seminiferous tubules. Surprisingly, the same compound heterozygous CFTR mutations were also observed in his brothers who also exhibited iCBAVD, with their parents being a heterozygous carrier for the mutations, as verified by Sanger sequencing. Protein structure simulation revealed that these mutations potentially led to impaired ATP-binding ability of CFTR. CONCLUSION We identified novel compound heterozygous CFTR mutations in two brothers and summarized the literature regarding CFTR mutation and male infertility. Our study may contribute to the genetic diagnosis of iCBAVD and future genetic counseling.
Collapse
Affiliation(s)
- Shi Shengjia
- Reproductive CenterNorthwest Women's and Children's HospitalXi'anChina
| | - Wang Lei
- Reproductive CenterNorthwest Women's and Children's HospitalXi'anChina
| | - Wang Tianwei
- Reproductive CenterNorthwest Women's and Children's HospitalXi'anChina
| | - Wang Hongmei
- School of MedicineSoutheast UniversityNanjingChina
| | - Shi Juanzi
- Reproductive CenterNorthwest Women's and Children's HospitalXi'anChina
| | - Qiao Sen
- Reproductive CenterNorthwest Women's and Children's HospitalXi'anChina
| |
Collapse
|
14
|
Figueiredo IAD, Ferreira SRD, Fernandes JM, Silva BA, Vasconcelos LHC, Cavalcante FA. A review of the pathophysiology and the role of ion channels on bronchial asthma. Front Pharmacol 2023; 14:1236550. [PMID: 37841931 PMCID: PMC10568497 DOI: 10.3389/fphar.2023.1236550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 09/08/2023] [Indexed: 10/17/2023] Open
Abstract
Asthma is one of the main non-communicable chronic diseases and affects a huge portion of the population. It is a multifactorial disease, classified into several phenotypes, being the allergic the most frequent. The pathophysiological mechanism of asthma involves a Th2-type immune response, with high concentrations of allergen-specific immunoglobulin E, eosinophilia, hyperreactivity and airway remodeling. These mechanisms are orchestrated by intracellular signaling from effector cells, such as lymphocytes and eosinophils. Ion channels play a fundamental role in maintaining the inflammatory response on asthma. In particular, transient receptor potential (TRP), stock-operated Ca2+ channels (SOCs), Ca2+-activated K+ channels (IKCa and BKCa), calcium-activated chloride channel (TMEM16A), cystic fibrosis transmembrane conductance regulator (CFTR), piezo-type mechanosensitive ion channel component 1 (PIEZO1) and purinergic P2X receptor (P2X). The recognition of the participation of these channels in the pathological process of asthma is important, as they become pharmacological targets for the discovery of new drugs and/or pharmacological tools that effectively help the pharmacotherapeutic follow-up of this disease, as well as the more specific mechanisms involved in worsening asthma.
Collapse
Affiliation(s)
- Indyra Alencar Duarte Figueiredo
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, Paraíba, Brazil
| | - Sarah Rebeca Dantas Ferreira
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, Paraíba, Brazil
| | - Jayne Muniz Fernandes
- Graduação em Farmácia, Departamento de Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, Paraíba, Brazil
| | - Bagnólia Araújo da Silva
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, Paraíba, Brazil
- Departamento de Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, Paraíba, Brazil
| | - Luiz Henrique César Vasconcelos
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, Paraíba, Brazil
- Departamento de Fisiologia e Patologia, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, Paraíba, Brazil
| | - Fabiana de Andrade Cavalcante
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, Paraíba, Brazil
- Departamento de Fisiologia e Patologia, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, Paraíba, Brazil
| |
Collapse
|
15
|
Schnitker F, Liu Y, Keitsch S, Soddemann M, Verhasselt HL, Kehrmann J, Grassmé H, Kamler M, Gulbins E, Wu Y. Reduced Sphingosine in Cystic Fibrosis Increases Susceptibility to Mycobacterium abscessus Infections. Int J Mol Sci 2023; 24:14004. [PMID: 37762308 PMCID: PMC10530875 DOI: 10.3390/ijms241814004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 09/06/2023] [Accepted: 09/08/2023] [Indexed: 09/29/2023] Open
Abstract
Cystic fibrosis (CF) is an autosomal recessive disorder caused by the deficiency of the cystic fibrosis transmembrane conductance regulator (CFTR) and often leads to pulmonary infections caused by various pathogens, including Staphylococcus aureus, Pseudomonas aeruginosa, and nontuberculous mycobacteria, particularly Mycobacterium abscessus. Unfortunately, M. abscessus infections are increasing in prevalence and are associated with the rapid deterioration of CF patients. The treatment options for M. abscessus infections are limited, requiring the urgent need to comprehend infectious pathogenesis and develop new therapeutic interventions targeting affected CF patients. Here, we show that the deficiency of CFTR reduces sphingosine levels in bronchial and alveolar epithelial cells and macrophages from CF mice and humans. Decreased sphingosine contributes to the susceptibility of CF tissues to M. abscessus infection, resulting in a higher incidence of infections in CF mice. Notably, treatment of M. abscessus with sphingosine demonstrated potent bactericidal activity against the pathogen. Most importantly, restoration of sphingosine levels in CF cells, whether human or mouse, and in the lungs of CF mice, provided protection against M. abscessus infections. Our findings demonstrate that pulmonary sphingosine levels are important in controlling M. abscessus infection. These results offer a promising therapeutic avenue for CF patients with pulmonary M. abscessus infections.
Collapse
Affiliation(s)
- Fabian Schnitker
- Department of Molecular Biology, Institute of Molecular Biology, University Hospital Essen, University of Duisburg-Essen, 45122 Essen, Germany; (F.S.); (Y.L.); (S.K.); (M.S.); (H.G.); (E.G.)
| | - Yongjie Liu
- Department of Molecular Biology, Institute of Molecular Biology, University Hospital Essen, University of Duisburg-Essen, 45122 Essen, Germany; (F.S.); (Y.L.); (S.K.); (M.S.); (H.G.); (E.G.)
- West German Heart and Vascular Center, Thoracic Transplantation, Department of Thoracic and Cardiovascular Surgery, University Hospital Essen, University Duisburg-Essen, 45122 Essen, Germany;
| | - Simone Keitsch
- Department of Molecular Biology, Institute of Molecular Biology, University Hospital Essen, University of Duisburg-Essen, 45122 Essen, Germany; (F.S.); (Y.L.); (S.K.); (M.S.); (H.G.); (E.G.)
| | - Matthias Soddemann
- Department of Molecular Biology, Institute of Molecular Biology, University Hospital Essen, University of Duisburg-Essen, 45122 Essen, Germany; (F.S.); (Y.L.); (S.K.); (M.S.); (H.G.); (E.G.)
| | - Hedda Luise Verhasselt
- Institute of Medical Microbiology, University Hospital Essen, University of Duisburg-Essen, 45122 Essen, Germany; (H.L.V.); (J.K.)
| | - Jan Kehrmann
- Institute of Medical Microbiology, University Hospital Essen, University of Duisburg-Essen, 45122 Essen, Germany; (H.L.V.); (J.K.)
| | - Heike Grassmé
- Department of Molecular Biology, Institute of Molecular Biology, University Hospital Essen, University of Duisburg-Essen, 45122 Essen, Germany; (F.S.); (Y.L.); (S.K.); (M.S.); (H.G.); (E.G.)
| | - Markus Kamler
- West German Heart and Vascular Center, Thoracic Transplantation, Department of Thoracic and Cardiovascular Surgery, University Hospital Essen, University Duisburg-Essen, 45122 Essen, Germany;
| | - Erich Gulbins
- Department of Molecular Biology, Institute of Molecular Biology, University Hospital Essen, University of Duisburg-Essen, 45122 Essen, Germany; (F.S.); (Y.L.); (S.K.); (M.S.); (H.G.); (E.G.)
- Department of Surgery, University of Cincinnati College of Medicine, Cincinnati, OH 45229, USA
| | - Yuqing Wu
- Department of Molecular Biology, Institute of Molecular Biology, University Hospital Essen, University of Duisburg-Essen, 45122 Essen, Germany; (F.S.); (Y.L.); (S.K.); (M.S.); (H.G.); (E.G.)
| |
Collapse
|
16
|
Benko F, Urminská D, Ďuračka M, Tvrdá E. Signaling Roleplay between Ion Channels during Mammalian Sperm Capacitation. Biomedicines 2023; 11:2519. [PMID: 37760960 PMCID: PMC10525812 DOI: 10.3390/biomedicines11092519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Revised: 08/31/2023] [Accepted: 09/06/2023] [Indexed: 09/29/2023] Open
Abstract
In order to accomplish their primary goal, mammalian spermatozoa must undergo a series of physiological, biochemical, and functional changes crucial for the acquisition of fertilization ability. Spermatozoa are highly polarized cells, which must swiftly respond to ionic changes on their passage through the female reproductive tract, and which are necessary for male gametes to acquire their functional competence. This review summarizes the current knowledge about specific ion channels and transporters located in the mammalian sperm plasma membrane, which are intricately involved in the initiation of changes within the ionic milieu of the sperm cell, leading to variations in the sperm membrane potential, membrane depolarization and hyperpolarization, changes in sperm motility and capacitation to further lead to the acrosome reaction and sperm-egg fusion. We also discuss the functionality of selected ion channels in male reproductive health and/or disease since these may become promising targets for clinical management of infertility in the future.
Collapse
Affiliation(s)
- Filip Benko
- Institute of Biotechnology, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 949 76 Nitra, Slovakia; (D.U.); (E.T.)
| | - Dana Urminská
- Institute of Biotechnology, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 949 76 Nitra, Slovakia; (D.U.); (E.T.)
| | - Michal Ďuračka
- AgroBioTech Research Centre, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 949 76 Nitra, Slovakia;
| | - Eva Tvrdá
- Institute of Biotechnology, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 949 76 Nitra, Slovakia; (D.U.); (E.T.)
| |
Collapse
|
17
|
Illek B, Fischer H, Machen TE, Hari G, Clemons KV, Sass G, Ferreira JAG, Stevens DA. Protective role of CFTR during fungal infection of cystic fibrosis bronchial epithelial cells with Aspergillus fumigatus. Front Cell Infect Microbiol 2023; 13:1196581. [PMID: 37680748 PMCID: PMC10482090 DOI: 10.3389/fcimb.2023.1196581] [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: 03/30/2023] [Accepted: 06/19/2023] [Indexed: 09/09/2023] Open
Abstract
Lung infection with the fungus Aspergillus fumigatus (Af) is a common complication in cystic fibrosis (CF) and is associated with loss of pulmonary function. We established a fungal epithelial co-culture model to examine the impact of Af infection on CF bronchial epithelial barrier function using Af strains 10AF and AF293-GFP, and the CFBE41o- cell line homozygous for the F508del mutation with (CF+CFTR) and without (CF) normal CFTR expression. Following exposure of the epithelial surface to Af conidia, formation of germlings (early stages of fungal growth) was detected after 9-12 hours and hyphae (mature fungal growth) after 12-24 hours. During fungal morphogenesis, bronchial epithelial cells showed signs of damage including rounding, and partial detachment after 24 hours. Fluorescently labeled conidia were internalized after 6 hours and more internalized conidia were observed in CF compared to CF+CFTR cells. Infection of the apical surface with 10AF conidia, germlings, or hyphae was performed to determine growth stage-specific effects on tight junction protein zona occludens protein 1 (ZO-1) expression and transepithelial electrical resistance (TER). In response to infection with conidia or germlings, epithelial barrier function degraded time-dependently (based on ZO-1 immunofluorescence and TER) with a delayed onset in CF+CFTR cell monolayers and required viable fungi and apical application. Infection with hyphae caused an earlier onset and faster rate of decline in TER compared to conidia and germlings. Gliotoxin, a major Af virulence factor, caused a rapid decline in TER and induced a transient chloride secretory response in CF+CFTR but not CF cells. Our findings suggest growth and internalization of Af result in deleterious effects on bronchial epithelial barrier function that occurred more rapidly in the absence of CFTR. Bronchial epithelial barrier breakdown was time-dependent and morphotype-specific and mimicked by acute administration of gliotoxin. Our study also suggests a protective role for CFTR by turning on CFTR-dependent chloride transport in response to gliotoxin, a mechanism that will support mucociliary clearance, and could delay the loss of epithelial integrity during fungal development in vivo.
Collapse
Affiliation(s)
- Beate Illek
- UCSF Benioff Children's Hospital Oakland, Children's Hospital Oakland Research Institute, Oakland, CA, United States
| | - Horst Fischer
- UCSF Benioff Children's Hospital Oakland, Children's Hospital Oakland Research Institute, Oakland, CA, United States
| | - Terry E. Machen
- Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA, United States
| | - Gopika Hari
- UCSF Benioff Children's Hospital Oakland, Children's Hospital Oakland Research Institute, Oakland, CA, United States
| | - Karl V. Clemons
- California Institute for Medical Research, San Jose, CA, United States
- Division of Infectious Diseases and Geographic Medicine, Stanford University Medical School, Stanford, CA, United States
| | - Gabriele Sass
- California Institute for Medical Research, San Jose, CA, United States
| | - Jose A. G. Ferreira
- California Institute for Medical Research, San Jose, CA, United States
- Division of Infectious Diseases and Geographic Medicine, Stanford University Medical School, Stanford, CA, United States
| | - David A. Stevens
- California Institute for Medical Research, San Jose, CA, United States
- Division of Infectious Diseases and Geographic Medicine, Stanford University Medical School, Stanford, CA, United States
| |
Collapse
|
18
|
Aryal B, Xia J, Hu Z, Stumpe M, Tsering T, Liu J, Huynh J, Fukao Y, Glöckner N, Huang HY, Sáncho-Andrés G, Pakula K, Ziegler J, Gorzolka K, Zwiewka M, Nodzynski T, Harter K, Sánchez-Rodríguez C, Jasiński M, Rosahl S, Geisler MM. An LRR receptor kinase controls ABC transporter substrate preferences during plant growth-defense decisions. Curr Biol 2023; 33:2008-2023.e8. [PMID: 37146609 DOI: 10.1016/j.cub.2023.04.029] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 02/27/2023] [Accepted: 04/13/2023] [Indexed: 05/07/2023]
Abstract
The exporter of the auxin precursor indole-3-butyric acid (IBA), ABCG36/PDR8/PEN3, from the model plant Arabidopsis has recently been proposed to also function in the transport of the phytoalexin camalexin. Based on these bonafide substrates, it has been suggested that ABCG36 functions at the interface between growth and defense. Here, we provide evidence that ABCG36 catalyzes the direct, ATP-dependent export of camalexin across the plasma membrane. We identify the leucine-rich repeat receptor kinase, QIAN SHOU KINASE1 (QSK1), as a functional kinase that physically interacts with and phosphorylates ABCG36. Phosphorylation of ABCG36 by QSK1 unilaterally represses IBA export, allowing camalexin export by ABCG36 conferring pathogen resistance. As a consequence, phospho-dead mutants of ABCG36, as well as qsk1 and abcg36 alleles, are hypersensitive to infection with the root pathogen Fusarium oxysporum, caused by elevated fungal progression. Our findings indicate a direct regulatory circuit between a receptor kinase and an ABC transporter that functions to control transporter substrate preference during plant growth and defense balance decisions.
Collapse
Affiliation(s)
- Bibek Aryal
- Department of Biology, University of Fribourg, 1700 Fribourg, Switzerland
| | - Jian Xia
- Department of Biology, University of Fribourg, 1700 Fribourg, Switzerland
| | - Zehan Hu
- Department of Biology, University of Fribourg, 1700 Fribourg, Switzerland
| | - Michael Stumpe
- Department of Biology, University of Fribourg, 1700 Fribourg, Switzerland
| | - Tashi Tsering
- Department of Biology, University of Fribourg, 1700 Fribourg, Switzerland
| | - Jie Liu
- Department of Biology, University of Fribourg, 1700 Fribourg, Switzerland
| | - John Huynh
- Department of Biology, University of Fribourg, 1700 Fribourg, Switzerland
| | - Yoichiro Fukao
- College of Life Sciences, Ritsumeikan University, Shiga 525-8577, Japan
| | - Nina Glöckner
- Zentrum für Molekularbiologie der Pflanzen, Pflanzenphysiologie, Universität Tübingen, Auf der Morgenstelle 32, 72076 Tübingen, Germany
| | - Hsin-Yao Huang
- Department of Biology, ETH Zurich, Universitätstrasse 2, 8092 Zurich, Switzerland
| | - Gloria Sáncho-Andrés
- Department of Biology, ETH Zurich, Universitätstrasse 2, 8092 Zurich, Switzerland
| | - Konrad Pakula
- Department of Plant Molecular Physiology, Institute of Bioorganic Chemistry, Polish Academy of Sciences, Z. Noskowskiego 12/14, 61-704 Poznań, Poland; NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, 61-614 Poznań, Poland
| | - Joerg Ziegler
- Department Molecular Signal Processing, Leibniz Institute of Plant Biochemistry, Weinberg 3, 06120 Halle (Saale), Germany
| | - Karin Gorzolka
- Department Biochemistry of Plant Interactions, Leibniz Institute of Plant Biochemistry, Weinberg 3, 06120 Halle (Saale), Germany
| | - Marta Zwiewka
- Mendel Centre for Plant Genomics and Proteomics Masaryk University, CEITEC MU Kamenice 5, Building A26, 625 00 Brno, Czech Republic
| | - Tomasz Nodzynski
- Mendel Centre for Plant Genomics and Proteomics Masaryk University, CEITEC MU Kamenice 5, Building A26, 625 00 Brno, Czech Republic
| | - Klaus Harter
- Zentrum für Molekularbiologie der Pflanzen, Pflanzenphysiologie, Universität Tübingen, Auf der Morgenstelle 32, 72076 Tübingen, Germany
| | | | - Michał Jasiński
- Department of Plant Molecular Physiology, Institute of Bioorganic Chemistry, Polish Academy of Sciences, Z. Noskowskiego 12/14, 61-704 Poznań, Poland; Department of Biochemistry and Biotechnology, Poznan University of Life Sciences, Dojazd 11, 60-632 Poznań, Poland
| | - Sabine Rosahl
- Department Biochemistry of Plant Interactions, Leibniz Institute of Plant Biochemistry, Weinberg 3, 06120 Halle (Saale), Germany
| | - Markus M Geisler
- Department of Biology, University of Fribourg, 1700 Fribourg, Switzerland.
| |
Collapse
|
19
|
Levring J, Terry DS, Kilic Z, Fitzgerald G, Blanchard SC, Chen J. CFTR function, pathology and pharmacology at single-molecule resolution. Nature 2023; 616:606-614. [PMID: 36949202 PMCID: PMC10115640 DOI: 10.1038/s41586-023-05854-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 02/16/2023] [Indexed: 03/24/2023]
Abstract
The cystic fibrosis transmembrane conductance regulator (CFTR) is an anion channel that regulates salt and fluid homeostasis across epithelial membranes1. Alterations in CFTR cause cystic fibrosis, a fatal disease without a cure2,3. Electrophysiological properties of CFTR have been analysed for decades4-6. The structure of CFTR, determined in two globally distinct conformations, underscores its evolutionary relationship with other ATP-binding cassette transporters. However, direct correlations between the essential functions of CFTR and extant structures are lacking at present. Here we combine ensemble functional measurements, single-molecule fluorescence resonance energy transfer, electrophysiology and kinetic simulations to show that the two nucleotide-binding domains (NBDs) of human CFTR dimerize before channel opening. CFTR exhibits an allosteric gating mechanism in which conformational changes within the NBD-dimerized channel, governed by ATP hydrolysis, regulate chloride conductance. The potentiators ivacaftor and GLPG1837 enhance channel activity by increasing pore opening while NBDs are dimerized. Disease-causing substitutions proximal (G551D) or distal (L927P) to the ATPase site both reduce the efficiency of NBD dimerization. These findings collectively enable the framing of a gating mechanism that informs on the search for more efficacious clinical therapies.
Collapse
Affiliation(s)
- Jesper Levring
- Laboratory of Membrane Biology and Biophysics, The Rockefeller University, New York, NY, USA
| | - Daniel S Terry
- Department of Structural Biology, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Zeliha Kilic
- Department of Structural Biology, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Gabriel Fitzgerald
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, NY, USA
| | - Scott C Blanchard
- Department of Structural Biology, St. Jude Children's Research Hospital, Memphis, TN, USA.
| | - Jue Chen
- Laboratory of Membrane Biology and Biophysics, The Rockefeller University, New York, NY, USA.
- Howard Hughes Medical Institute, The Rockefeller University, New York, NY, USA.
| |
Collapse
|
20
|
Hwang TC, Braakman I, van der Sluijs P, Callebaut I. Structure basis of CFTR folding, function and pharmacology. J Cyst Fibros 2023; 22 Suppl 1:S5-S11. [PMID: 36216744 DOI: 10.1016/j.jcf.2022.09.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 09/19/2022] [Accepted: 09/26/2022] [Indexed: 11/05/2022]
Abstract
The root cause of cystic fibrosis (CF), the most common life-shortening genetic disease in the Caucasian population, is the loss of function of the CFTR protein, which serves as a phosphorylation-activated, ATP-gated anion channel in numerous epithelia-lining tissues. In the past decade, high-throughput drug screening has made a significant stride in developing highly effective CFTR modulators for the treatment of CF. Meanwhile, structural-biology studies have succeeded in solving the high-resolution three-dimensional (3D) structure of CFTR in different conformations. Here, we provide a brief overview of some striking features of CFTR folding, function and pharmacology, in light of its specific structural features within the ABC-transporter superfamily. A particular focus is given to CFTR's first nucleotide-binding domain (NBD1), because folding of NBD1 constitutes a bottleneck in the CFTR protein biogenesis pathway, and ATP binding to this domain plays a unique role in the functional stability of CFTR. Unraveling the molecular basis of CFTR folding, function, and pharmacology would inspire the development of next-generation mutation-specific CFTR modulators.
Collapse
Affiliation(s)
- Tzyh-Chang Hwang
- Institute of Pharmacology, School of Medicine, National Yang Ming Chiao Tung University, Taiwan; Department of Medical Pharmacology and Physiology, Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO, USA
| | - Ineke Braakman
- Cellular Protein Chemistry, Bijvoet Centre for Biomolecular Research, Utrecht University, 3584 CH Utrecht, The Netherlands
| | - Peter van der Sluijs
- Cellular Protein Chemistry, Bijvoet Centre for Biomolecular Research, Utrecht University, 3584 CH Utrecht, The Netherlands
| | - Isabelle Callebaut
- Sorbonne Université, Muséum National d'Histoire Naturelle, UMR CNRS 7590, Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie, IMPMC, 75005 Paris, France.
| |
Collapse
|
21
|
Ravatin M, Odolczyk N, Servel N, Guijarro JI, Tagat E, Chevalier B, Baatallah N, Corringer PJ, Lukács GL, Edelman A, Zielenkiewicz P, Chambard JM, Hinzpeter A, Faure G. Design of Crotoxin-Based Peptides with Potentiator Activity Targeting the ΔF508NBD1 Cystic Fibrosis Transmembrane Conductance Regulator. J Mol Biol 2023; 435:167929. [PMID: 36566799 DOI: 10.1016/j.jmb.2022.167929] [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: 09/29/2022] [Revised: 12/16/2022] [Accepted: 12/17/2022] [Indexed: 12/24/2022]
Abstract
We have previously shown that the CBb subunit of crotoxin, a β-neurotoxin with phospholipase A2 (PLA2) activity, targets the human ΔF508CFTR chloride channel implicated in cystic fibrosis (CF). By direct binding to the nucleotide binding domain 1 (NBD1) of ΔF508CFTR, this neurotoxic PLA2 acts as a potentiator increasing chloride channel current and corrects the trafficking defect of misfolded ΔF508CFTR inside the cell. Here, for a therapeutics development of new anti-cystic fibrosis agents, we use a structure-based in silico approach to design peptides mimicking the CBb-ΔF508NBD1 interface. Combining biophysical and electrophysiological methods, we identify several peptides that interact with the ΔF508NBD1 domain and reveal their effects as potentiators on phosphorylated ΔF508CFTR. Moreover, protein-peptide interactions and electrophysiological studies allowed us to identify key residues of ΔF508NBD1 governing the interactions with the novel potentiators. The designed peptides bind to the same region as CBb phospholipase A2 on ΔF508NBD1 and potentiate chloride channel activity. Certain peptides also show an additive effect towards the clinically approved VX-770 potentiator. The identified CF therapeutics peptides represent a novel class of CFTR potentiators and illustrate a strategy leading to reproducing the effect of specific protein-protein interactions.
Collapse
Affiliation(s)
- Marc Ravatin
- Institut Pasteur, Université de Paris Cité, CNRS UMR 3571, Récepteurs-Canaux, Département de Neuroscience, 25, rue du Dr. Roux, F-75015 Paris, France; Sanofi, R&D, Integrated Drug Discovery, In Vitro Biology, Vitry-sur-Seine, France
| | - Norbert Odolczyk
- Institut Pasteur, Université de Paris Cité, CNRS UMR 3571, Récepteurs-Canaux, Département de Neuroscience, 25, rue du Dr. Roux, F-75015 Paris, France; Department of Systems Biology, Institute of Experimental Plant Biology and Biotechnology, University of Warsaw, Miecznikowa 1, 02-096 Warsaw, Poland; Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawinskiego 5a, 02-106 Warsaw, Poland
| | - Nathalie Servel
- INSERM, U1151, Université de Paris Cité, Institut Necker Enfants Malades (INEM), CNRS, UMR 8253, 160 rue de Vaugirard, F-75015 Paris, France
| | - J Iñaki Guijarro
- Institut Pasteur, Université de Paris Cité, CNRS UMR 3528, Biological NMR and HDX-MS Technological Platform, 28 rue du Dr. Roux, F-75015 Paris, France
| | - Eric Tagat
- Sanofi, R&D, Integrated Drug Discovery, In Vitro Biology, Vitry-sur-Seine, France
| | - Benoit Chevalier
- INSERM, U1151, Université de Paris Cité, Institut Necker Enfants Malades (INEM), CNRS, UMR 8253, 160 rue de Vaugirard, F-75015 Paris, France
| | - Nesrine Baatallah
- INSERM, U1151, Université de Paris Cité, Institut Necker Enfants Malades (INEM), CNRS, UMR 8253, 160 rue de Vaugirard, F-75015 Paris, France
| | - Pierre-Jean Corringer
- Institut Pasteur, Université de Paris Cité, CNRS UMR 3571, Récepteurs-Canaux, Département de Neuroscience, 25, rue du Dr. Roux, F-75015 Paris, France
| | - Gergely L Lukács
- Department of Physiology and Biochemistry, McGill University, Montréal, Quebec, Canada
| | - Aleksander Edelman
- INSERM, U1151, Université de Paris Cité, Institut Necker Enfants Malades (INEM), CNRS, UMR 8253, 160 rue de Vaugirard, F-75015 Paris, France
| | - Piotr Zielenkiewicz
- Department of Systems Biology, Institute of Experimental Plant Biology and Biotechnology, University of Warsaw, Miecznikowa 1, 02-096 Warsaw, Poland; Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawinskiego 5a, 02-106 Warsaw, Poland
| | - Jean-Marie Chambard
- Sanofi, R&D, Integrated Drug Discovery, In Vitro Biology, Vitry-sur-Seine, France
| | - Alexandre Hinzpeter
- INSERM, U1151, Université de Paris Cité, Institut Necker Enfants Malades (INEM), CNRS, UMR 8253, 160 rue de Vaugirard, F-75015 Paris, France.
| | - Grazyna Faure
- Institut Pasteur, Université de Paris Cité, CNRS UMR 3571, Récepteurs-Canaux, Département de Neuroscience, 25, rue du Dr. Roux, F-75015 Paris, France.
| |
Collapse
|
22
|
Ozaki T, Minami A, Oikawa H. Recent advances in the biosynthesis of ribosomally synthesized and posttranslationally modified peptides of fungal origin. J Antibiot (Tokyo) 2023; 76:3-13. [PMID: 36424516 DOI: 10.1038/s41429-022-00576-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 09/30/2022] [Accepted: 10/03/2022] [Indexed: 11/25/2022]
Abstract
Ribosomally synthesized and posttranslationally modified peptides (RiPPs) are growing class of natural products with potent biological activities. Although the core scaffolds of RiPPs are composed of proteinogenic amino acids, remarkable structural diversity is generated through posttranslational modifications (PTMs) of precursor peptides. In addition, ribosomal origin of biosynthetic precursors enables supply of its analogs through genetic approach such as site-directed mutagenesis on corresponding genes. As PTM enzymes often exhibit substrate tolerance, RiPP biosynthetic machineries are considered as efficient tools for generation of unique peptide derivatives. RiPP pathways are distributed among all domains of life and those derived from bacteria and plants have been known for decades. In contrast, fungal RiPPs (F-RiPPs) have fewer examples. Amatoxins and omphalotins are F-RiPPs produced by Basidiomycota fungi. In the biosynthesis of these compounds, macrocyclization by prolyl oligopeptidase homologs and N-methylations of back bone amides have been characterized, respectively. Ustiloxins and related compounds are another group of F-RiPPs with characteristic macrocyclic ethers. UstYa family proteins, which are fungi-specific putative oxidases, have been identified as common proteins involved in PTMs of these compounds. Despite a limited number of characterized examples, recent progress in sequencing of fungal genomes indicated that a number of RiPP pathways are hidden in fungal resources, making F-RiPPs as attractive target for genome mining studies while more detailed understandings of key biosynthetic enzymes are still necessary. This review seeks to describe recent advances on the F-RiPP biosynthesis with slight emphasis on the function of UstYa family proteins.
Collapse
Affiliation(s)
- Taro Ozaki
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo, 060-0810, Japan.,Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, 980-8578, Japan
| | - Atsushi Minami
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo, 060-0810, Japan
| | - Hideaki Oikawa
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo, 060-0810, Japan. .,Innovation Center of Marine Biotechnology and Pharmaceuticals, School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, 529020, Guangdong, China.
| |
Collapse
|
23
|
Huang B, Wang H, Yang B. Non-Aquaporin Water Channels. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2023; 1398:331-342. [PMID: 36717505 DOI: 10.1007/978-981-19-7415-1_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Water transport through membrane is so intricate that there are still some debates. AQPs are entirely accepted to allow water transmembrane movement depending on osmotic gradient. Cotransporters and uniporters, however, are also concerned in water homeostasis. UT-B has a single-channel water permeability that is similar to AQP1. CFTR was initially thought as a water channel but now not believed to transport water directly. By cotransporters, such as KCC4, NKCC1, SGLT1, GAT1, EAAT1, and MCT1, water is transported by water osmosis coupling with substrates, which explains how water is transported across the isolated small intestine. This chapter provides information about water transport mediated by other membrane proteins except AQPs.
Collapse
Affiliation(s)
- Boyue Huang
- Laboratory of Neuroscience and Tissue Engineering, Department of Anatomy, Basic Medical College, Chongqing Medical University, Chongqing, China
| | - Hongkai Wang
- Northwestern University Interdepartmental Neuroscience Program, Chicago, IL, USA
- Laboratory of Regenerative Rehabilitation and Department of Physical Medicine and Rehabilitation, Shirley Ryan AbilityLab and Northwestern University Feinberg School of Medicine and Shirley Ryan AbilityLab, Chicago, IL, USA
| | - Baoxue Yang
- School of Basic Medical Sciences, Peking University, Beijing, China.
| |
Collapse
|
24
|
Alfonso-Pérez T, Baonza G, Herranz G, Martín-Belmonte F. Deciphering the interplay between autophagy and polarity in epithelial tubulogenesis. Semin Cell Dev Biol 2022; 131:160-172. [PMID: 35641407 DOI: 10.1016/j.semcdb.2022.05.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 05/17/2022] [Accepted: 05/18/2022] [Indexed: 12/14/2022]
Abstract
The Metazoan complexity arises from a primary building block, the epithelium, which comprises a layer of polarized cells that divide the organism into compartments. Most of these body compartments are organs formed by epithelial tubes that enclose an internal hollow space or lumen. Over the last decades, multiple studies have unmasked the paramount events required to form this lumen de novo. In epithelial cells, these events mainly involve recognizing external clues, establishing and maintaining apicobasal polarity, endo-lysosomal trafficking, and expanding the created lumen. Although canonical autophagy has been classically considered a catabolic process needed for cell survival, multiple studies have also emphasized its crucial role in epithelial polarity, morphogenesis and cellular homeostasis. Furthermore, non-canonical autophagy pathways have been recently discovered as atypical secretory routes. Both canonical and non-canonical pathways play essential roles in epithelial polarity and lumen formation. This review addresses how the molecular machinery for epithelial polarity and autophagy interplay in different processes and how autophagy functions influence lumenogenesis, emphasizing its role in the lumen formation key events.
Collapse
Affiliation(s)
- Tatiana Alfonso-Pérez
- Program of Tissue and Organ Homeostasis, Centro de Biología Molecular "Severo, Ochoa", CSIC-UAM, Madrid 28049, Spain; Ramon & Cajal Health Research Institute (IRYCIS), Hospital Universitario Ramón y Cajal, Madrid 28034, Spain
| | - Gabriel Baonza
- Program of Tissue and Organ Homeostasis, Centro de Biología Molecular "Severo, Ochoa", CSIC-UAM, Madrid 28049, Spain
| | - Gonzalo Herranz
- Program of Tissue and Organ Homeostasis, Centro de Biología Molecular "Severo, Ochoa", CSIC-UAM, Madrid 28049, Spain; Ramon & Cajal Health Research Institute (IRYCIS), Hospital Universitario Ramón y Cajal, Madrid 28034, Spain
| | - Fernando Martín-Belmonte
- Program of Tissue and Organ Homeostasis, Centro de Biología Molecular "Severo, Ochoa", CSIC-UAM, Madrid 28049, Spain; Ramon & Cajal Health Research Institute (IRYCIS), Hospital Universitario Ramón y Cajal, Madrid 28034, Spain.
| |
Collapse
|
25
|
Sui H, Xu X, Su Y, Gong Z, Yao M, Liu X, Zhang T, Jiang Z, Bai T, Wang J, Zhang J, Xu C, Luo M. Gene therapy for cystic fibrosis: Challenges and prospects. Front Pharmacol 2022; 13:1015926. [PMID: 36304167 PMCID: PMC9592762 DOI: 10.3389/fphar.2022.1015926] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 09/29/2022] [Indexed: 11/25/2022] Open
Abstract
Cystic fibrosis (CF) is a life-threatening autosomal-recessive disease caused by mutations in a single gene encoding cystic fibrosis transmembrane conductance regulator (CFTR). CF effects multiple organs, and lung disease is the primary cause of mortality. The median age at death from CF is in the early forties. CF was one of the first diseases to be considered for gene therapy, and efforts focused on treating CF lung disease began shortly after the CFTR gene was identified in 1989. However, despite the quickly established proof-of-concept for CFTR gene transfer in vitro and in clinical trials in 1990s, to date, 36 CF gene therapy clinical trials involving ∼600 patients with CF have yet to achieve their desired outcomes. The long journey to pursue gene therapy as a cure for CF encountered more difficulties than originally anticipated, but immense progress has been made in the past decade in the developments of next generation airway transduction viral vectors and CF animal models that reproduced human CF disease phenotypes. In this review, we look back at the history for the lessons learned from previous clinical trials and summarize the recent advances in the research for CF gene therapy, including the emerging CRISPR-based gene editing strategies. We also discuss the airway transduction vectors, large animal CF models, the complexity of CF pathogenesis and heterogeneity of CFTR expression in airway epithelium, which are the major challenges to the implementation of a successful CF gene therapy, and highlight the future opportunities and prospects.
Collapse
Affiliation(s)
- Hongshu Sui
- Department of Histology and Embryology, School of Clinical and Basic Medical Sciences, Shandong First Medical University & Shandong Academy of Medical Science, Jinan, Shandong, China
- *Correspondence: Hongshu Sui, ; Changlong Xu, ; Mingjiu Luo,
| | - Xinghua Xu
- Department of Histology and Embryology, School of Clinical and Basic Medical Sciences, Shandong First Medical University & Shandong Academy of Medical Science, Jinan, Shandong, China
| | - Yanping Su
- Department of Histology and Embryology, School of Clinical and Basic Medical Sciences, Shandong First Medical University & Shandong Academy of Medical Science, Jinan, Shandong, China
| | - Zhaoqing Gong
- Department of Histology and Embryology, School of Clinical and Basic Medical Sciences, Shandong First Medical University & Shandong Academy of Medical Science, Jinan, Shandong, China
| | - Minhua Yao
- Department of Histology and Embryology, School of Clinical and Basic Medical Sciences, Shandong First Medical University & Shandong Academy of Medical Science, Jinan, Shandong, China
| | - Xiaocui Liu
- Department of Histology and Embryology, School of Clinical and Basic Medical Sciences, Shandong First Medical University & Shandong Academy of Medical Science, Jinan, Shandong, China
| | - Ting Zhang
- Department of Histology and Embryology, School of Clinical and Basic Medical Sciences, Shandong First Medical University & Shandong Academy of Medical Science, Jinan, Shandong, China
| | - Ziyao Jiang
- Department of Histology and Embryology, School of Clinical and Basic Medical Sciences, Shandong First Medical University & Shandong Academy of Medical Science, Jinan, Shandong, China
| | - Tianhao Bai
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai’an, China
| | - Junzuo Wang
- The Affiliated Tai’an City Central Hospital of Qingdao University, Tai’an, Shandong, China
| | - Jingjun Zhang
- Department of Neurology, The Second Affiliated Hospital of Shandong First Medical University, Tai’an, Shandong, China
| | - Changlong Xu
- The Reproductive Medical Center of Nanning Second People’s Hospital, Nanning, China
- National Center for International Research of Bio-targeting Theranostics, Guangxi Key Laboratory of Bio-targeting Theranostics, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Talent Highland of Bio-targeting Theranostics, Guangxi Medical University, Nanning, China
- *Correspondence: Hongshu Sui, ; Changlong Xu, ; Mingjiu Luo,
| | - Mingjiu Luo
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai’an, China
- *Correspondence: Hongshu Sui, ; Changlong Xu, ; Mingjiu Luo,
| |
Collapse
|
26
|
Yang H, Hou C, Xiao W, Qiu Y. The role of mechanosensitive ion channels in the gastrointestinal tract. Front Physiol 2022; 13:904203. [PMID: 36060694 PMCID: PMC9437298 DOI: 10.3389/fphys.2022.904203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 07/19/2022] [Indexed: 11/13/2022] Open
Abstract
Mechanosensation is essential for normal gastrointestinal (GI) function, and abnormalities in mechanosensation are associated with GI disorders. There are several mechanosensitive ion channels in the GI tract, namely transient receptor potential (TRP) channels, Piezo channels, two-pore domain potassium (K2p) channels, voltage-gated ion channels, large-conductance Ca2+-activated K+ (BKCa) channels, and the cystic fibrosis transmembrane conductance regulator (CFTR). These channels are located in many mechanosensitive intestinal cell types, namely enterochromaffin (EC) cells, interstitial cells of Cajal (ICCs), smooth muscle cells (SMCs), and intrinsic and extrinsic enteric neurons. In these cells, mechanosensitive ion channels can alter transmembrane ion currents in response to mechanical forces, through a process known as mechanoelectrical coupling. Furthermore, mechanosensitive ion channels are often associated with a variety of GI tract disorders, including irritable bowel syndrome (IBS) and GI tumors. Mechanosensitive ion channels could therefore provide a new perspective for the treatment of GI diseases. This review aims to highlight recent research advances regarding the function of mechanosensitive ion channels in the GI tract. Moreover, it outlines the potential role of mechanosensitive ion channels in related diseases, while describing the current understanding of interactions between the GI tract and mechanosensitive ion channels.
Collapse
Affiliation(s)
- Haoyu Yang
- Experimental Center of Basic Medicine, College of Basic Medical Sciences, Army Medical University, Chongqing, China
| | - Chaofeng Hou
- Experimental Center of Basic Medicine, College of Basic Medical Sciences, Army Medical University, Chongqing, China
| | - Weidong Xiao
- Department of General Surgery, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Yuan Qiu
- Department of General Surgery, Xinqiao Hospital, Army Medical University, Chongqing, China
- *Correspondence: Yuan Qiu,
| |
Collapse
|
27
|
Sumaily KM, Nimer R, Alzahrani M, Abdel Jabar M, Alodib A, Sabi EM, Nizami I, Abdel Rahman AM. CFTR protein quantification as a cystic fibrosis diagnostic biomarker in dried blood spots using multiple reaction monitoring tandem mass spectrometry. J Pharm Biomed Anal 2022; 216:114801. [DOI: 10.1016/j.jpba.2022.114801] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 04/10/2022] [Accepted: 04/22/2022] [Indexed: 12/11/2022]
|
28
|
Song C, Li X, Jia B, Liu L, Wei P, Manzoor MA, Wang F, Li BY, Wang G, Chen C, Han B. Comparative Transcriptomics Unveil the Crucial Genes Involved in Coumarin Biosynthesis in Peucedanum praeruptorum Dunn. FRONTIERS IN PLANT SCIENCE 2022; 13:899819. [PMID: 35656010 PMCID: PMC9152428 DOI: 10.3389/fpls.2022.899819] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Accepted: 04/29/2022] [Indexed: 06/15/2023]
Abstract
Peucedanum praeruptorum Dunn is a commonly used traditional Chinese medicine that is abundant in furano- and dihydropyrano coumarins. When P. praeruptorum reaches the bolting stage, the roots gradually lignified, and the content of coumarins declines rapidly. Non-bolting has always been a decisive factor for harvesting the P. praeruptorum materials. To evaluate the amount of coumarin components in unbolted and bolted P. praeruptorum, the variations of praeruptorin A, praeruptorin B, praeruptorin E, peucedanocoumarin I, and peucedanocoumarin II were determined. Additionally, 336,505 transcripts were obtained from the comparative transcriptome data. Among them, a total of 1,573 differentially expressed genes were screened out. To identify the critical genes involved in coumarin biosynthesis, comparative transcriptomics coupled with co-expression associated analysis was conducted. Finally, coumarin biosynthesis-related eighteen candidate genes were selected for the validation of qPCR. Additionally, a phylogenetic tree and the expression profile of ATP-binding cassette (ABC) transporters were constructed. To clarify the main genes in the regulation of coumarin biosynthesis, the interaction network of the co-expression genes from thirteen modules was constructed. Current results exhibited the significant increment of praeruptorin A, praeruptorin B and praeruptorin E in the bolted P. praeruptorum. Although, peucedanocoumarin I and peucedanocoumarin II were slightly increased. Besides the content of coumarins, the essential genes involved in the coumarin biosynthesis also exhibited an overall downward trend after bolting. Three peroxidases (PRXs) involved in the production of lignin monomers had been demonstrated to be downregulated. PAL, C4H, HCT, COMT, CCoAOMT, and some ABC transporters were dramatically downregulated at the bolting stage. These results indicated that the downregulation of coumarin biosynthetic genes in the bolted P. praeruptorum ultimately reduced the formation of coumarins. However, the mechanism through which bolting indirectly affects the formation of coumarin still needs extra functional verification.
Collapse
Affiliation(s)
- Cheng Song
- College of Biological and Pharmaceutical Engineering, West Anhui University, Lu’an, China
- Anhui Engineering Laboratory for Conservation and Sustainable Utilization of Traditional Chinese Medicine Resources, Lu’an, China
| | - Xiaoli Li
- College of Biological and Pharmaceutical Engineering, West Anhui University, Lu’an, China
- Anhui Engineering Laboratory for Conservation and Sustainable Utilization of Traditional Chinese Medicine Resources, Lu’an, China
| | - Bin Jia
- College of Biological and Pharmaceutical Engineering, West Anhui University, Lu’an, China
- Anhui Engineering Laboratory for Conservation and Sustainable Utilization of Traditional Chinese Medicine Resources, Lu’an, China
| | - Li Liu
- College of Biological and Pharmaceutical Engineering, West Anhui University, Lu’an, China
- Anhui Engineering Laboratory for Conservation and Sustainable Utilization of Traditional Chinese Medicine Resources, Lu’an, China
| | - Peipei Wei
- College of Biological and Pharmaceutical Engineering, West Anhui University, Lu’an, China
- Anhui Engineering Laboratory for Conservation and Sustainable Utilization of Traditional Chinese Medicine Resources, Lu’an, China
| | | | - Fang Wang
- College of Biological and Pharmaceutical Engineering, West Anhui University, Lu’an, China
- Anhui Engineering Laboratory for Conservation and Sustainable Utilization of Traditional Chinese Medicine Resources, Lu’an, China
| | - Biqi Yao Li
- College of Biological and Pharmaceutical Engineering, West Anhui University, Lu’an, China
- Anhui Engineering Laboratory for Conservation and Sustainable Utilization of Traditional Chinese Medicine Resources, Lu’an, China
| | - Guanglin Wang
- Analytical and Testing Center, West Anhui University, Lu’an, China
| | - Cunwu Chen
- College of Biological and Pharmaceutical Engineering, West Anhui University, Lu’an, China
- Anhui Engineering Laboratory for Conservation and Sustainable Utilization of Traditional Chinese Medicine Resources, Lu’an, China
| | - Bangxing Han
- College of Biological and Pharmaceutical Engineering, West Anhui University, Lu’an, China
- Anhui Engineering Laboratory for Conservation and Sustainable Utilization of Traditional Chinese Medicine Resources, Lu’an, China
| |
Collapse
|
29
|
Goodwin RJ, Docker A, MacDermott‐Opeskin HI, Aitken HM, O'Mara ML, Beer PD, White NG. Hydroxy Groups Enhance [2]Rotaxane Anion Binding Selectivity. Chemistry 2022; 28:e202200389. [PMID: 35293643 PMCID: PMC9321576 DOI: 10.1002/chem.202200389] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Indexed: 11/25/2022]
Abstract
We report the synthesis of two [2]rotaxanes containing an interlocked three dimensional binding cavity formed from a pyridinium bis(amide) axle component containing two phenol donors, and an isophthalamide based macrocycle. In the competitive solvent mixture 1 : 1 CDCl3 : CD3OD, one of the receptors exhibits a much higher selectivity preference for chloride than an analogous rotaxane without the hydroxy groups. X‐ray crystal structures reveal the chloride anion guest encapsulated within the interlocked binding cavity, though not all of the hydrogen bond donors are utilised. Computational semi‐empirical simulations indicate that secondary intermolecular interactions occur between the axle hydroxy hydrogen bond donors and the [2]rotaxane macrocycle components, contributing to a more preorganised binding pocket, which may be responsible for the observed enhanced selectivity.
Collapse
Affiliation(s)
- Rosemary J. Goodwin
- Research School of Chemistry Australian National University Canberra ACT Australia
| | - Andrew Docker
- Department of Chemistry University of Oxford Chemistry Research Laboratory Mansfield Road Oxford OX1 3TA UK
| | | | - Heather M. Aitken
- Research School of Chemistry Australian National University Canberra ACT Australia
| | - Megan L. O'Mara
- Research School of Chemistry Australian National University Canberra ACT Australia
| | - Paul D. Beer
- Department of Chemistry University of Oxford Chemistry Research Laboratory Mansfield Road Oxford OX1 3TA UK
| | - Nicholas G. White
- Research School of Chemistry Australian National University Canberra ACT Australia
| |
Collapse
|
30
|
da Cunha MF, Pranke I, Sassi A, Schreiweis C, Moriceau S, Vidovic D, Hatton A, Carlon MS, Creste G, Berhal F, Prestat G, Freund R, Odolczyk N, Jais JP, Gravier-Pelletier C, Zielenkiewicz P, Jullien V, Hinzpeter A, Oury F, Edelman A, Sermet-Gaudelus I. Systemic bis-phosphinic acid derivative restores chloride transport in Cystic Fibrosis mice. Sci Rep 2022; 12:6132. [PMID: 35413967 PMCID: PMC9005718 DOI: 10.1038/s41598-022-09678-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Accepted: 02/28/2022] [Indexed: 11/17/2022] Open
Abstract
Mutations in the Cystic Fibrosis Transmembrane Conductance Regulator gene (CFTR) are responsible for Cystic Fibrosis (CF). The most common CF-causing mutation is the deletion of the 508th amino-acid of CFTR (F508del), leading to dysregulation of the epithelial fluid transport in the airway’s epithelium and the production of a thickened mucus favoring chronic bacterial colonization, sustained inflammation and ultimately respiratory failure. c407 is a bis-phosphinic acid derivative which corrects CFTR dysfunction in epithelial cells carrying the F508del mutation. This study aimed to investigate c407 in vivo activity in the F508del Cftrtm1Eur murine model of CF. Using nasal potential difference measurement, we showed that in vivo administration of c407 by topical, short-term intraperitoneal and long-term subcutaneous route significantly increased the CFTR dependent chloride (Cl−) conductance in F508del Cftrtm1Eur mice. This functional improvement was correlated with a relocalization of F508del-cftr to the apical membrane in nasal epithelial cells. Importantly, c407 long-term administration was well tolerated and in vitro ADME toxicologic studies did not evidence any obvious issue. Our data provide the first in vivo preclinical evidence of c407 efficacy and absence of toxicity after systemic administration for the treatment of Cystic Fibrosis.
Collapse
Affiliation(s)
| | - Iwona Pranke
- INSERM U1151, équipe 11, Paris, France.,Université de Paris, Paris, France
| | - Ali Sassi
- INSERM U1151, équipe 11, Paris, France.,Université de Paris, Paris, France
| | | | | | - Dragana Vidovic
- Molecular Virology and Gene Therapy, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Leuven, Belgium
| | - Aurélie Hatton
- INSERM U1151, équipe 11, Paris, France.,Université de Paris, Paris, France
| | - Mariane Sylvia Carlon
- Molecular Virology and Gene Therapy, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Leuven, Belgium
| | - Geordie Creste
- Université de Paris, Paris, France.,UMR 8601, CNRS, LCBPT, Paris, France
| | - Farouk Berhal
- Université de Paris, Paris, France.,UMR 8601, CNRS, LCBPT, Paris, France
| | - Guillaume Prestat
- Université de Paris, Paris, France.,UMR 8601, CNRS, LCBPT, Paris, France
| | - Romain Freund
- Université de Paris, Paris, France.,Unité de Biostatistiques, Assistance Publique Hôpitaux de Paris, Paris, France
| | - Norbert Odolczyk
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warsaw, Poland.,Laboratory of Systems Biology, Institute of Experimental Plant Biology and Biotechnology, Warsaw, Poland
| | - Jean Philippe Jais
- Unité de Biostatistiques, Assistance Publique Hôpitaux de Paris, Paris, France
| | | | - Piotr Zielenkiewicz
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warsaw, Poland.,Laboratory of Systems Biology, Institute of Experimental Plant Biology and Biotechnology, Warsaw, Poland
| | - Vincent Jullien
- Laboratoire de Bactériologie-Virologie-Hygiène, Hôpital Avicenne, Bobigny, France
| | | | - Franck Oury
- Université de Paris, Paris, France.,INSERM U1151, équipe 8, Paris, France
| | - Aleksander Edelman
- INSERM U1151, équipe 11, Paris, France.,Université de Paris, Paris, France
| | - Isabelle Sermet-Gaudelus
- INSERM U1151, équipe 11, Paris, France. .,Université de Paris, Paris, France. .,Centre de Référence et de Compétence Maladies Rares, Mucoviscidose et maladies apparentées, Hôpital Necker Enfants malades, Paris, France. .,European Reference Network for Rare Respiratory Diseases (ERN-LUNG), Brussels, Belgium. .,Institut Necker Enfants Malades, 160 rue de Vaugirard, 75015, Paris, France.
| |
Collapse
|
31
|
Brusa I, Sondo E, Falchi F, Pedemonte N, Roberti M, Cavalli A. Proteostasis Regulators in Cystic Fibrosis: Current Development and Future Perspectives. J Med Chem 2022; 65:5212-5243. [PMID: 35377645 PMCID: PMC9014417 DOI: 10.1021/acs.jmedchem.1c01897] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In cystic fibrosis (CF), the deletion of phenylalanine 508 (F508del) in the CF transmembrane conductance regulator (CFTR) leads to misfolding and premature degradation of the mutant protein. These defects can be targeted with pharmacological agents named potentiators and correctors. During the past years, several efforts have been devoted to develop and approve new effective molecules. However, their clinical use remains limited, as they fail to fully restore F508del-CFTR biological function. Indeed, the search for CFTR correctors with different and additive mechanisms has recently increased. Among them, drugs that modulate the CFTR proteostasis environment are particularly attractive to enhance therapy effectiveness further. This Perspective focuses on reviewing the recent progress in discovering CFTR proteostasis regulators, mainly describing the design, chemical structure, and structure-activity relationships. The opportunities, challenges, and future directions in this emerging and promising field of research are discussed, as well.
Collapse
Affiliation(s)
- Irene Brusa
- Department of Pharmacy and Biotechnology, University of Bologna, 40126 Bologna, Italy.,Computational & Chemical Biology, Istituto Italiano di Tecnologia, 16163 Genova, Italy
| | - Elvira Sondo
- UOC Genetica Medica, IRCCS Istituto Giannina Gaslini, 16147 Genova, Italy
| | | | | | - Marinella Roberti
- Department of Pharmacy and Biotechnology, University of Bologna, 40126 Bologna, Italy
| | - Andrea Cavalli
- Department of Pharmacy and Biotechnology, University of Bologna, 40126 Bologna, Italy.,Computational & Chemical Biology, Istituto Italiano di Tecnologia, 16163 Genova, Italy
| |
Collapse
|
32
|
The Effect of CFTR Modulators on Airway Infection in Cystic Fibrosis. Int J Mol Sci 2022; 23:ijms23073513. [PMID: 35408875 PMCID: PMC8998472 DOI: 10.3390/ijms23073513] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/21/2022] [Accepted: 03/22/2022] [Indexed: 02/08/2023] Open
Abstract
The advent of Cystic fibrosis transmembrane receptor (CFTR) modulators in 2012 was a critical event in the history of cystic fibrosis (CF) treatment. Unlike traditional therapies that target downstream effects of CFTR dysfunction, CFTR modulators aim to correct the underlying defect at the protein level. These genotype-specific therapies are now available for an increasing number of CF patients, transforming the way we view the condition from a life-limiting disease to one that can be effectively managed. Several studies have demonstrated the vast improvement CFTR modulators have on normalization of sweat chloride, CFTR function, clinical endpoints, and frequency of pulmonary exacerbation. However, their impact on other aspects of the disease, such as pathogenic burden and airway infection, remain under explored. Frequent airway infections as a result of increased susceptibility and impaired innate immune response are a serious problem within CF, often leading to accelerated decline in lung function and disease progression. Current evidence suggests that CFTR modulators are unable to eradicate pathogenic organisms in those with already established lung disease. However, this may not be the case for those with relatively low levels of disease progression and conserved microbial diversity, such as young patients. Furthermore, it remains unknown whether the restorative effects exerted by CFTR modulators extend to immune cells, such as phagocytes, which have the potential to modulate the response of people with CF (pwCF) to infection. Throughout this review, we look at the potential impact of CFTR modulators on airway infection in CF and their ability to shape impaired pulmonary defences to pathogens.
Collapse
|
33
|
The NSAID glafenine rescues class 2 CFTR mutants via cyclooxygenase 2 inhibition of the arachidonic acid pathway. Sci Rep 2022; 12:4595. [PMID: 35302062 PMCID: PMC8930988 DOI: 10.1038/s41598-022-08661-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 03/09/2022] [Indexed: 12/12/2022] Open
Abstract
Most cases of cystic fibrosis (CF) are caused by class 2 mutations in the cystic fibrosis transmembrane regulator (CFTR). These proteins preserve some channel function but are retained in the endoplasmic reticulum (ER). Partial rescue of the most common CFTR class 2 mutant, F508del-CFTR, has been achieved through the development of pharmacological chaperones (Tezacaftor and Elexacaftor) that bind CFTR directly. However, it is not clear whether these drugs will rescue all class 2 CFTR mutants to a medically relevant level. We have previously shown that the nonsteroidal anti-inflammatory drug (NSAID) ibuprofen can correct F508del-CFTR trafficking. Here, we utilized RNAi and pharmacological inhibitors to determine the mechanism of action of the NSAID glafenine. Using cellular thermal stability assays (CETSAs), we show that it is a proteostasis modulator. Using medicinal chemistry, we identified a derivative with a fourfold increase in CFTR corrector potency. Furthermore, we show that these novel arachidonic acid pathway inhibitors can rescue difficult-to-correct class 2 mutants, such as G85E-CFTR > 13%, that of non-CF cells in well-differentiated HBE cells. Thus, the results suggest that targeting the arachidonic acid pathway may be a profitable way of developing correctors of certain previously hard-to-correct class 2 CFTR mutations.
Collapse
|
34
|
A Simulation Model for the Non-Electrogenic Uniport Carrier-Assisted Transport of Ions across Lipid Membranes. MEMBRANES 2022; 12:membranes12030292. [PMID: 35323767 PMCID: PMC8955484 DOI: 10.3390/membranes12030292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Revised: 02/24/2022] [Accepted: 03/01/2022] [Indexed: 12/10/2022]
Abstract
Impressive work has been completed in recent decades on the transmembrane anion transport capability of small synthetic transporters from many different structural classes. However, very few predicting models have been proposed for the fast screening of compound libraries before spending time and resources on the laboratory bench for their synthesis. In this work, a new approach is presented which aims at describing the transport process by taking all the steps into explicit consideration, and includes all possible experiment-derived parameters. The algorithm is able to simulate the macroscopic experiments performed with lipid vesicles to assess the ion-transport ability of the synthetic transporters following a non-electrogenic uniport mechanism. While keeping calculation time affordable, the final goal is the curve-fitting of real experimental data—so, to obtain both an analysis and a predictive tool. The role and the relative weight of the different parameters is discussed and the agreement with the literature is shown by using the simulations of a virtual benchmark case. The fitting of real experimental curves is also shown for two transporters of different structural type.
Collapse
|
35
|
Merjaneh L, Hasan S, Kasim N, Ode KL. The role of modulators in cystic fibrosis related diabetes. J Clin Transl Endocrinol 2022; 27:100286. [PMID: 34917484 PMCID: PMC8668978 DOI: 10.1016/j.jcte.2021.100286] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 11/15/2021] [Accepted: 11/27/2021] [Indexed: 11/21/2022] Open
Abstract
The development and introduction of modulator therapies have completely shifted the paradigm for the treatment of cystic fibrosis (CF). Highly effective modulator therapies have driven marked improvements in lung function, exacerbation rate, weight and quality of life in CF patients. However, their effect on CF related diabetes (CFRD) is not well delineated. The role of CF transmembrane conductance regulator (CFTR) in CFRD pathogenesis is inadequately understood and research aimed at deciphering the underlying mechanisms of CFRD continues to evolve. In this review, we summarize what is known regarding the effect of CFTR modulators on CFRD. Small studies using ivacaftor monotherapy in gating mutations have revealed improvement in insulin secretion, glucose tolerance and/or decrease in insulin requirement. However, lumacaftor/ivacaftor studies (primarily in delta F 508 homozygous) have not revealed significant improvement in CFRD or glucose tolerance. No studies are yet available regarding the effect of the highly effective triple therapy (elexacaftor/tezacaftor/ivacaftor) on CFRD or insulin secretion. CFTR modulators might affect development or progression of CFRD through many mechanisms including improving insulin secretion by correcting the CFTR defect directly, improving ductal function, reducing islet inflammation, and improving incretin secretion or by enhancing insulin sensitivity via reduced systemic inflammation and increased physical activity driven by improved lung function and quality of life. On the other hand, they can stimulate appetite and improve gastrointestinal function resulting in increased caloric intake and absorption, driving excessive weight gain and potentially increased insulin resistance. If the defect in insulin secretion is reversible then it is possible that initiation of CFTR modulators at a younger age might help prevent CFRD. Despite the advances in CF management, CFRD remains a challenge and knowledge continues to evolve. Future studies will drive better understanding of the role of highly effective CFTR modulators in CFRD.
Collapse
Affiliation(s)
- Lina Merjaneh
- Division of Endocrinology, Department of Pediatrics, Seattle Children's Hospital, Seattle, WA, USA
| | - Sana Hasan
- Department of Endocrinology and Metabolism, Cleveland Clinic Foundation, Cleveland, OH
| | - Nader Kasim
- Division of Pediatric Diabetes and Endocrinology, Helen Devos Children’s Hospital, Spectrum Health, Grand Rapids, MI, USA
| | - Katie Larson Ode
- Division of Endocrinology, Department of Pediatrics, University of Iowa Stead Family Children’s Hospital, Iowa City, IA, USA
| |
Collapse
|
36
|
Pinostrobin inhibits renal CFTR-mediated Cl- secretion and retards cyst growth in cell-derived cyst and polycystic kidney disease rats. J Pharmacol Sci 2022; 148:369-376. [DOI: 10.1016/j.jphs.2022.02.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Revised: 01/09/2022] [Accepted: 02/14/2022] [Indexed: 11/23/2022] Open
|
37
|
Zhang Q, Lv X, Wang Y, Wang B, He Y, Chen C, Shi G, Li Y. Expression of CFTR, a hallmark gene of ionocytes, is downregulated in salivary glands of Sjögren's syndrome patients. Arthritis Res Ther 2022; 24:263. [PMID: 36476557 PMCID: PMC9727938 DOI: 10.1186/s13075-022-02959-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 11/22/2022] [Indexed: 12/12/2022] Open
Abstract
INTRODUCTION The autoimmune exocrinopathy, Sjögren's syndrome (SjS), is associated with secretory defects in salivary glands. The cystic fibrosis transmembrane conductance regulator (CFTR) of the chloride channel is a master regulator of fluid secretion, but its role in SjS has not been investigated. Our research found a link between CFTR and SjS at the genetic and protein levels, as well as through clinical data. METHODS We used single-cell RNA sequencing to identify the presence of CFTR in glandular epithelial cells of the human salivary gland (scRNA-seq) and confirmed the difference using immunofluorescence tests in labial glands and clinical data statistics from 44 non-SjS and 36 SjS patients. RESULTS The changes of CFTR expression in salivary glands of SjS patients was assessed at both mRNA and protein levels. According to the scRNA-seq analyses, CFTR was the hallmark gene of ionocytes. We firstly identified that SjS had a lower level of CFTR expression in the labial glands than non-SjS at mRNA level. Using immunofluorescence assays, we also found that CFTR expression was decreased in SjS patients compared to non-SjS. The results of the clinical statistics revealed that CFTR expression was adversely correlated with feelings of dry mouth, lymphocyte infiltration in the labial glands, and certain autoantibodies in serum (antinuclear antibody, anti-Ro/SSA, and anti-La/SSB antibodies). CONCLUSION Those findings above proved an obviously downregulated expression of CFTR in salivary glands of SjS patients and its clinical significance. Dysfunction in CFTR or ionocytes may contribute to SjS pathogenesis and represents a promising therapeutic target.
Collapse
Affiliation(s)
- Qi Zhang
- grid.412625.6Department of Rheumatology and Clinical Immunology, The First Affiliated Hospital of Xiamen University, Medical College, Xiamen University, Xiamen, Fujian China
| | - Xiuying Lv
- grid.412625.6Department of Rheumatology and Clinical Immunology, The First Affiliated Hospital of Xiamen University, Medical College, Xiamen University, Xiamen, Fujian China
| | - Ying Wang
- grid.412625.6Department of Rheumatology and Clinical Immunology, The First Affiliated Hospital of Xiamen University, Medical College, Xiamen University, Xiamen, Fujian China
| | - Bin Wang
- grid.412625.6Department of Rheumatology and Clinical Immunology, The First Affiliated Hospital of Xiamen University, Medical College, Xiamen University, Xiamen, Fujian China
| | - Yan He
- grid.412625.6Department of Rheumatology and Clinical Immunology, The First Affiliated Hospital of Xiamen University, Medical College, Xiamen University, Xiamen, Fujian China
| | - Chubing Chen
- grid.412625.6Department of Rheumatology and Clinical Immunology, The First Affiliated Hospital of Xiamen University, Medical College, Xiamen University, Xiamen, Fujian China
| | - Guixiu Shi
- grid.412625.6Department of Rheumatology and Clinical Immunology, The First Affiliated Hospital of Xiamen University, Medical College, Xiamen University, Xiamen, Fujian China
| | - Yan Li
- grid.412625.6Department of Rheumatology and Clinical Immunology, The First Affiliated Hospital of Xiamen University, Medical College, Xiamen University, Xiamen, Fujian China
| |
Collapse
|
38
|
Wang Y, Zeng W, Lin B, Yao Y, Li C, Hu W, Wu H, Huang J, Zhang M, Xue T, Ren D, Qu L, Cang C. CLN7 is an organellar chloride channel regulating lysosomal function. SCIENCE ADVANCES 2021; 7:eabj9608. [PMID: 34910516 PMCID: PMC8673761 DOI: 10.1126/sciadv.abj9608] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Neuronal ceroid lipofuscinoses (NCLs) are a group of autosomal recessive lysosomal storage diseases. One variant form of late-infantile NCL (vLINCL) is caused by mutations of a lysosomal membrane protein CLN7, the function of which has remained unknown. Here, we identified CLN7 as a novel endolysosomal chloride channel. Overexpression of CLN7 increases endolysosomal chloride currents and enlarges endolysosomes through a Ca2+/calmodulin-dependent way. Human CLN7 and its yeast homolog exhibit characteristics of chloride channels and are sensitive to chloride channel blockers. Moreover, CLN7 regulates lysosomal chloride conductance, luminal pH, and lysosomal membrane potential and promotes the release of lysosomal Ca2+ through transient receptor potential mucolipin 1 (TRPML1). Knocking out CLN7 causes pathological features that are similar to those of patients with vLINCL, including retinal degeneration and autofluorescent lipofuscin. The pathogenic mutations in CLN7 lead to a decrease in chloride permeability, suggesting that reconstitution of lysosomal Cl− homeostasis may be an effective strategy for the treatment of vLINCL.
Collapse
Affiliation(s)
- Yayu Wang
- Hefei National Laboratory for Physical Sciences at Microscale, the CAS Key Laboratory of Innate Immunity and Chronic Disease, Neurodegenerative Disorder Research Center, School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Wenping Zeng
- Hefei National Laboratory for Physical Sciences at Microscale, the CAS Key Laboratory of Innate Immunity and Chronic Disease, Neurodegenerative Disorder Research Center, School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Bingqian Lin
- Hefei National Laboratory for Physical Sciences at Microscale, the CAS Key Laboratory of Innate Immunity and Chronic Disease, Neurodegenerative Disorder Research Center, School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Yichuan Yao
- CAS Key Laboratory of Brain Function and Disease, School of Life Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Canjun Li
- Hefei National Laboratory for Physical Sciences at Microscale, the CAS Key Laboratory of Innate Immunity and Chronic Disease, Neurodegenerative Disorder Research Center, School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Wenqi Hu
- Hefei National Laboratory for Physical Sciences at Microscale, the CAS Key Laboratory of Innate Immunity and Chronic Disease, Neurodegenerative Disorder Research Center, School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Haotian Wu
- Hefei National Laboratory for Physical Sciences at Microscale, the CAS Key Laboratory of Innate Immunity and Chronic Disease, Neurodegenerative Disorder Research Center, School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Jiamin Huang
- Hefei National Laboratory for Physical Sciences at Microscale, the CAS Key Laboratory of Innate Immunity and Chronic Disease, Neurodegenerative Disorder Research Center, School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Mei Zhang
- CAS Key Laboratory of Brain Function and Disease, School of Life Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Tian Xue
- Hefei National Laboratory for Physical Sciences at Microscale, the CAS Key Laboratory of Innate Immunity and Chronic Disease, Neurodegenerative Disorder Research Center, School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230026, China
- CAS Key Laboratory of Brain Function and Disease, School of Life Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Dejian Ren
- Department of Biology, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Lili Qu
- Hefei National Laboratory for Physical Sciences at Microscale, the CAS Key Laboratory of Innate Immunity and Chronic Disease, Neurodegenerative Disorder Research Center, School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230026, China
- Corresponding author. (L.Q.); (C.C.)
| | - Chunlei Cang
- Hefei National Laboratory for Physical Sciences at Microscale, the CAS Key Laboratory of Innate Immunity and Chronic Disease, Neurodegenerative Disorder Research Center, School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230026, China
- Corresponding author. (L.Q.); (C.C.)
| |
Collapse
|
39
|
Infield DT, Strickland KM, Gaggar A, McCarty NA. The molecular evolution of function in the CFTR chloride channel. J Gen Physiol 2021; 153:212705. [PMID: 34647973 PMCID: PMC8640958 DOI: 10.1085/jgp.202012625] [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: 04/10/2020] [Revised: 08/11/2021] [Accepted: 09/09/2021] [Indexed: 12/13/2022] Open
Abstract
The ATP-binding cassette (ABC) transporter superfamily includes many proteins of clinical relevance, with genes expressed in all domains of life. Although most members use the energy of ATP binding and hydrolysis to accomplish the active import or export of various substrates across membranes, the cystic fibrosis transmembrane conductance regulator (CFTR) is the only known animal ABC transporter that functions primarily as an ion channel. Defects in CFTR, which is closely related to ABCC subfamily members that bear function as bona fide transporters, underlie the lethal genetic disease cystic fibrosis. This article seeks to integrate structural, functional, and genomic data to begin to answer the critical question of how the function of CFTR evolved to exhibit regulated channel activity. We highlight several examples wherein preexisting features in ABCC transporters were functionally leveraged as is, or altered by molecular evolution, to ultimately support channel function. This includes features that may underlie (1) construction of an anionic channel pore from an anionic substrate transport pathway, (2) establishment and tuning of phosphoregulation, and (3) optimization of channel function by specialized ligand–channel interactions. We also discuss how divergence and conservation may help elucidate the pharmacology of important CFTR modulators.
Collapse
Affiliation(s)
- Daniel T Infield
- Department of Molecular Physiology and Biophysics, University of Iowa, Iowa City, IA
| | | | - Amit Gaggar
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL.,Gregory Fleming James Cystic Fibrosis Research Center, University of Alabama at Birmingham, Birmingham, AL.,Program in Protease and Matrix Biology, University of Alabama at Birmingham, Birmingham, AL.,Birmingham Veterans Administration Medical Center, Birmingham, AL
| | - Nael A McCarty
- Department of Pediatrics, Emory University, Atlanta, GA.,Children's Healthcare of Atlanta Center for Cystic Fibrosis and Airways Disease Research, Emory University, Atlanta, GA
| |
Collapse
|
40
|
Valizadeh M, Alimohammadi F, Azarm A, Pourtaghi Z, Derakhshan barjoei MM, Sabri H, Jafari A, Arabpour Z, Razavi P, Mokhtari M, Deravi N. Uses of soybean isoflavonoids in dentistry: A literature review. J Dent Sci 2021. [DOI: 10.1016/j.jds.2021.11.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
|
41
|
Chabanovska O, Galow AM, David R, Lemcke H. mRNA - A game changer in regenerative medicine, cell-based therapy and reprogramming strategies. Adv Drug Deliv Rev 2021; 179:114002. [PMID: 34653534 PMCID: PMC9418126 DOI: 10.1016/j.addr.2021.114002] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 10/06/2021] [Accepted: 10/08/2021] [Indexed: 12/25/2022]
Abstract
After thirty years of intensive research shaping and optimizing the technology, the approval of the first mRNA-based formulation by the EMA and FDA in order to stop the COVID-19 pandemic was a breakthrough in mRNA research. The astonishing success of these vaccines have brought the mRNA platform into the spotlight of the scientific community. The remarkable persistence of the groundwork is mainly attributed to the exceptional benefits of mRNA application, including the biological origin, immediate but transitory mechanism of action, non-integrative properties, safe and relatively simple manufacturing as well as the flexibility to produce any desired protein. Based on these advantages, a practical implementation of in vitro transcribed mRNA has been considered in most areas of medicine. In this review, we discuss the key preconditions for the rise of the mRNA in the medical field, including the unique structural and functional features of the mRNA molecule and its vehicles, which are crucial aspects for a production of potent mRNA-based therapeutics. Further, we focus on the utility of mRNA tools particularly in the scope of regenerative medicine, i.e. cell reprogramming approaches or manipulation strategies for targeted tissue restoration. Finally, we highlight the strong clinical potential but also the remaining hurdles to overcome for the mRNA-based regenerative therapy, which is only a few steps away from becoming a reality.
Collapse
Affiliation(s)
- Oleksandra Chabanovska
- Department of Cardiac Surgery, Reference and Translation Center for Cardiac Stem Cell Therapy (RTC), Rostock University Medical Center, Rostock, Germany,Faculty of Interdisciplinary Research, Department Life, Light & Matter, University Rostock, Rostock, Germany
| | - Anne-Marie Galow
- Institute of Genome Biology, Leibniz Institute for Farm Animal Biology, Dummerstorf, Germany
| | - Robert David
- Department of Cardiac Surgery, Reference and Translation Center for Cardiac Stem Cell Therapy (RTC), Rostock University Medical Center, Rostock, Germany,Faculty of Interdisciplinary Research, Department Life, Light & Matter, University Rostock, Rostock, Germany,Corresponding author at: Department of Cardiac Surgery, Reference and Translation Center for Cardiac Stem Cell Therapy (RTC), Rostock University Medical Center, Rostock, Germany
| | - Heiko Lemcke
- Department of Cardiac Surgery, Reference and Translation Center for Cardiac Stem Cell Therapy (RTC), Rostock University Medical Center, Rostock, Germany,Faculty of Interdisciplinary Research, Department Life, Light & Matter, University Rostock, Rostock, Germany
| |
Collapse
|
42
|
Yang J, Yu G, Sessler JL, Shin I, Gale PA, Huang F. Artificial transmembrane ion transporters as potential therapeutics. Chem 2021. [DOI: 10.1016/j.chempr.2021.10.028] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
43
|
Tillinghast J, Drury S, Bowser D, Benn A, Lee KPK. Structural mechanisms for gating and ion selectivity of the human polyamine transporter ATP13A2. Mol Cell 2021; 81:4650-4662.e4. [PMID: 34715014 DOI: 10.1016/j.molcel.2021.10.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 09/01/2021] [Accepted: 10/02/2021] [Indexed: 11/17/2022]
Abstract
Mutations in ATP13A2, also known as PARK9, cause a rare monogenic form of juvenile-onset Parkinson's disease named Kufor-Rakeb syndrome and other neurodegenerative diseases. ATP13A2 encodes a neuroprotective P5B P-type ATPase highly enriched in the brain that mediates selective import of spermine ions from lysosomes into the cytosol via an unknown mechanism. Here we present three structures of human ATP13A2 bound to an ATP analog or to spermine in the presence of phosphomimetics determined by cryoelectron microscopy. ATP13A2 autophosphorylation opens a lysosome luminal gate to reveal a narrow lumen access channel that holds a spermine ion in its entrance. ATP13A2's architecture suggests physical principles underlying selective polyamine transport and anticipates a "pump-channel" intermediate that could function as a counter-cation conduit to facilitate lysosome acidification. Our findings establish a firm foundation to understand ATP13A2 mutations associated with disease and bring us closer to realizing ATP13A2's potential in neuroprotective therapy.
Collapse
Affiliation(s)
- Jordan Tillinghast
- Department of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, The Pennsylvania State University, Hershey, PA 17033, USA
| | - Sydney Drury
- Department of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, The Pennsylvania State University, Hershey, PA 17033, USA
| | - Darren Bowser
- Department of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, The Pennsylvania State University, Hershey, PA 17033, USA
| | - Alana Benn
- Department of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, The Pennsylvania State University, Hershey, PA 17033, USA
| | - Kenneth Pak Kin Lee
- Department of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, The Pennsylvania State University, Hershey, PA 17033, USA.
| |
Collapse
|
44
|
Martynov VI, Pakhomov AA. BODIPY derivatives as fluorescent reporters of molecular activities in living cells. RUSSIAN CHEMICAL REVIEWS 2021. [DOI: 10.1070/rcr4985] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Abstract
Fluorescent compounds have become indispensable tools for imaging molecular activities in the living cell. 4,4-Difluoro-4-bora-3a,4a-diaza-s-indacene (BODIPY) is currently one of the most popular fluorescent reporters due to its unique photophysical properties. This review provides a general survey and presents a summary of recent advances in the development of new BODIPY-based cellular biomarkers and biosensors. The review starts with the consideration of the properties of BODIPY derivatives required for their application as cellular reporters. Then review provides examples of the design of sensors for different biologically important molecules, ions, membrane potential, temperature and viscosity defining the live cell status. Special attention is payed to BODPY-based phototransformable reporters.
The bibliography includes 339 references.
Collapse
|
45
|
Lee JA, Cho A, Huang EN, Xu Y, Quach H, Hu J, Wong AP. Gene therapy for cystic fibrosis: new tools for precision medicine. J Transl Med 2021; 19:452. [PMID: 34717671 PMCID: PMC8556969 DOI: 10.1186/s12967-021-03099-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 10/01/2021] [Indexed: 12/18/2022] Open
Abstract
The discovery of the Cystic fibrosis (CF) gene in 1989 has paved the way for incredible progress in treating the disease such that the mean survival age of individuals living with CF is now ~58 years in Canada. Recent developments in gene targeting tools and new cell and animal models have re-ignited the search for a permanent genetic cure for all CF. In this review, we highlight some of the more recent gene therapy approaches as well as new models that will provide insight into personalized therapies for CF.
Collapse
Affiliation(s)
- Jin-A Lee
- Program in Developmental and Stem Cell Biology, Hospital for Sick Children, 686 Bay Street, PGCRL 16-9420, Toronto, ON, M5G0A4, Canada
| | - Alex Cho
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Canada
| | - Elena N Huang
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Canada
| | - Yiming Xu
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Canada
| | - Henry Quach
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Canada
| | - Jim Hu
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Canada.,Program in Translational Medicine, Hospital for Sick Children, Toronto, ON, M5G0A4, Canada
| | - Amy P Wong
- Program in Developmental and Stem Cell Biology, Hospital for Sick Children, 686 Bay Street, PGCRL 16-9420, Toronto, ON, M5G0A4, Canada. .,Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Canada.
| |
Collapse
|
46
|
Lukasiak A, Zajac M. The Distribution and Role of the CFTR Protein in the Intracellular Compartments. MEMBRANES 2021; 11:membranes11110804. [PMID: 34832033 PMCID: PMC8618639 DOI: 10.3390/membranes11110804] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 10/18/2021] [Accepted: 10/21/2021] [Indexed: 12/11/2022]
Abstract
Cystic fibrosis is a hereditary disease that mainly affects secretory organs in humans. It is caused by mutations in the gene encoding CFTR with the most common phenylalanine deletion at position 508. CFTR is an anion channel mainly conducting Cl− across the apical membranes of many different epithelial cells, the impairment of which causes dysregulation of epithelial fluid secretion and thickening of the mucus. This, in turn, leads to the dysfunction of organs such as the lungs, pancreas, kidney and liver. The CFTR protein is mainly localized in the plasma membrane; however, there is a growing body of evidence that it is also present in the intracellular organelles such as the endosomes, lysosomes, phagosomes and mitochondria. Dysfunction of the CFTR protein affects not only the ion transport across the epithelial tissues, but also has an impact on the proper functioning of the intracellular compartments. The review aims to provide a summary of the present state of knowledge regarding CFTR localization and function in intracellular compartments, the physiological role of this localization and the consequences of protein dysfunction at cellular, epithelial and organ levels. An in-depth understanding of intracellular processes involved in CFTR impairment may reveal novel opportunities in pharmacological agents of cystic fibrosis.
Collapse
|
47
|
Talbi K, Cabrita I, Kraus A, Hofmann S, Skoczynski K, Kunzelmann K, Buchholz B, Schreiber R. The chloride channel CFTR is not required for cyst growth in an ADPKD mouse model. FASEB J 2021; 35:e21897. [PMID: 34473378 DOI: 10.1096/fj.202100843r] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 08/09/2021] [Accepted: 08/18/2021] [Indexed: 01/01/2023]
Abstract
Autosomal dominant polycystic kidney disease (ADPKD) is characterized by the development of bilateral renal cysts which enlarge continuously, leading to compression of adjacent intact nephrons. The growing cysts lead to a progressive decline in renal function. Cyst growth is driven by enhanced cell proliferation and chloride secretion into the cyst lumen. Chloride secretion is believed to occur mainly by the cAMP-activated cystic fibrosis transmembrane conductance regulator (CFTR), with some contribution by the calcium-activated chloride channel TMEM16A. However, our previous work suggested TMEM16A as a major factor for renal cyst formation. The contribution of CFTR to cyst formation has never been demonstrated in an adult ADPKD mouse model. We used mice with an inducible tubule-specific Pkd1 knockout, which consistently develop polycystic kidneys upon deletion of Pkd1. Cellular properties, ion currents, and cyst development in these mice were compared with that of mice carrying a co-deletion of Pkd1 and Cftr. Knockout of Cftr did not reveal any significant impact on cyst formation in the ADPKD mouse model. Furthermore, knockout of Cftr did not attenuate the largely augmented cell proliferation observed in Pkd1 knockout kidneys. Patch clamp analysis on primary renal epithelial cells lacking expression of Pkd1 indicated an only marginal contribution of CFTR to whole cell Cl- currents, which were clearly dominated by calcium-activated TMEM16A currents. In conclusion, CFTR does not essentially contribute to renal cyst formation in mice caused by deletion of Pkd1. Enhanced cell proliferation and chloride secretion is caused primarily by upregulation of the calcium-activated chloride channel TMEM16A.
Collapse
Affiliation(s)
- Khaoula Talbi
- Department of Physiology, University of Regensburg, Regensburg, Germany
| | - Inês Cabrita
- Department of Physiology, University of Regensburg, Regensburg, Germany
| | - Andre Kraus
- Department of Nephrology and Hypertension, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany
| | - Sascha Hofmann
- Department of Physiology, University of Regensburg, Regensburg, Germany
| | - Kathrin Skoczynski
- Department of Nephrology and Hypertension, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany
| | - Karl Kunzelmann
- Department of Physiology, University of Regensburg, Regensburg, Germany
| | - Bjoern Buchholz
- Department of Nephrology and Hypertension, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany
| | - Rainer Schreiber
- Department of Physiology, University of Regensburg, Regensburg, Germany
| |
Collapse
|
48
|
Serum inflammatory profiles in cystic fibrosis mice with and without Bordetella pseudohinzii infection. Sci Rep 2021; 11:17535. [PMID: 34475490 PMCID: PMC8413329 DOI: 10.1038/s41598-021-97033-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 08/09/2021] [Indexed: 01/04/2023] Open
Abstract
Cystic fibrosis (CF) is an autosomal recessive disease caused by dysfunctional cystic fibrosis transmembrane conductance regulator (CFTR) protein, and is marked by an accumulation of mucus in affected airways resulting in persistent infection and chronic inflammation. Quantitative differences in inflammatory markers have been observed in CF patient serum, tracheal cells, and bronchoalveolar lavage fluid, in the absence of detectable infection, implying that absent CFTR function alone may result in dysregulated immune responses. To examine the relationship between absent CFTR and systemic inflammation, 22 analytes were measured in CF mice (F508del/F508del) sera using the MSD multiplex platform. Pro-inflammatory cytokines IL-2, TNF-α, IL-17α, IFN-γ, IL-1β, and MIP-3α are significantly elevated in infection-naïve CF mice (p < 0.050). Anti-inflammatory cytokines IL-10 and IL-4 are also significantly increased (p = 0.00003, p = 0.004). Additionally, six general markers of inflammation are significantly different from non-CF controls (p < 0.050). To elucidate the effects of chronic infection on the CF inflammatory profile, we examined CF mice exposed to spontaneous Bordetella pseudohinzii infections. There are no statistical differences in nearly all inflammatory markers when compared to their infection-naïve CF counterparts, except in the Th2-derived IL-4 and IL-5 which demonstrate significant decreases following exposure (p = 0.046, p = 0.045). Lastly, following acute infection, CF mice demonstrate elevations in nearly all inflammatory markers, but exhibit a shortened return to uninfected levels over time, and suppression of Th1-derived IL-2 and IL-5 (p = 0.043, p = 0.011). These results imply that CF mice have a persistent inflammatory profile often indistinguishable from chronic infection, and a dysregulated humoral response during and following active infection.
Collapse
|
49
|
Szeri F, Corradi V, Niaziorimi F, Donnelly S, Conseil G, Cole SPC, Tieleman DP, van de Wetering K. Mutagenic Analysis of the Putative ABCC6 Substrate-Binding Cavity Using a New Homology Model. Int J Mol Sci 2021; 22:ijms22136910. [PMID: 34199119 PMCID: PMC8267652 DOI: 10.3390/ijms22136910] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Revised: 06/19/2021] [Accepted: 06/23/2021] [Indexed: 12/16/2022] Open
Abstract
Inactivating mutations in ABCC6 underlie the rare hereditary mineralization disorder pseudoxanthoma elasticum. ABCC6 is an ATP-binding cassette (ABC) integral membrane protein that mediates the release of ATP from hepatocytes into the bloodstream. The released ATP is extracellularly converted into pyrophosphate, a key mineralization inhibitor. Although ABCC6 is firmly linked to cellular ATP release, the molecular details of ABCC6-mediated ATP release remain elusive. Most of the currently available data support the hypothesis that ABCC6 is an ATP-dependent ATP efflux pump, an un-precedented function for an ABC transporter. This hypothesis implies the presence of an ATP-binding site in the substrate-binding cavity of ABCC6. We performed an extensive mutagenesis study using a new homology model based on recently published structures of its close homolog, bovine Abcc1, to characterize the substrate-binding cavity of ABCC6. Leukotriene C4 (LTC4), is a high-affinity substrate of ABCC1. We mutagenized fourteen amino acid residues in the rat ortholog of ABCC6, rAbcc6, that corresponded to the residues in ABCC1 found in the LTC4 binding cavity. Our functional characterization revealed that most of the amino acids in rAbcc6 corresponding to those found in the LTC4 binding pocket in bovine Abcc1 are not critical for ATP efflux. We conclude that the putative ATP binding site in the substrate-binding cavity of ABCC6/rAbcc6 is distinct from the bovine Abcc1 LTC4-binding site.
Collapse
Affiliation(s)
- Flora Szeri
- Department of Dermatology and Cutaneous Biology and PXE Center of Excellence in Research and Clinical Care, Thomas Jefferson University, Philadelphia, PA 19107, USA; (F.S.); (F.N.); (S.D.)
- Research Centre for Natural Sciences, Institute of Enzymology, 1117 Budapest, Hungary
| | - Valentina Corradi
- Department of Biological Sciences and Centre for Molecular Simulation, University of Calgary, Calgary, AB T2N 1N4, Canada; (V.C.); (D.P.T.)
| | - Fatemeh Niaziorimi
- Department of Dermatology and Cutaneous Biology and PXE Center of Excellence in Research and Clinical Care, Thomas Jefferson University, Philadelphia, PA 19107, USA; (F.S.); (F.N.); (S.D.)
| | - Sylvia Donnelly
- Department of Dermatology and Cutaneous Biology and PXE Center of Excellence in Research and Clinical Care, Thomas Jefferson University, Philadelphia, PA 19107, USA; (F.S.); (F.N.); (S.D.)
| | - Gwenaëlle Conseil
- Department of Pathology and Molecular Medicine, Queen’s University, Kingston, ON K7L 3N6, Canada; (G.C.); (S.P.C.C.)
| | - Susan P. C. Cole
- Department of Pathology and Molecular Medicine, Queen’s University, Kingston, ON K7L 3N6, Canada; (G.C.); (S.P.C.C.)
| | - D. Peter Tieleman
- Department of Biological Sciences and Centre for Molecular Simulation, University of Calgary, Calgary, AB T2N 1N4, Canada; (V.C.); (D.P.T.)
| | - Koen van de Wetering
- Department of Dermatology and Cutaneous Biology and PXE Center of Excellence in Research and Clinical Care, Thomas Jefferson University, Philadelphia, PA 19107, USA; (F.S.); (F.N.); (S.D.)
- Correspondence: ; Tel.: +1-(215)-503-5701
| |
Collapse
|
50
|
Pharmacokinetics and pharmacodynamics of antibiotics in cystic fibrosis: a narrative review. Int J Antimicrob Agents 2021; 58:106381. [PMID: 34157401 DOI: 10.1016/j.ijantimicag.2021.106381] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 05/21/2021] [Accepted: 06/10/2021] [Indexed: 12/22/2022]
Abstract
Cystic fibrosis affects several organs, predisposing patients to severe bacterial respiratory infections, including those caused by methicillin-resistant Staphylococcus aureus. Cystic fibrosis is also associated with a wide spectrum of pathological changes that can significantly affect the absorption, distribution, metabolism, and/or elimination of several drugs, including antibacterial agents. Therefore, awareness of the pharmacokinetic derangements in patients with cystic fibrosis is mandatory for the optimisation of antibiotic therapy. This review discusses the basic principles of pharmacokinetics and the pathophysiology of the pharmacokinetics changes associated with cystic fibrosis; it also provides an update of available data for the most widely used antibiotics. Evidence accumulated in the last few years has clearly shown that a significant number of cystic fibrosis patients treated with conventional dosing schemes have sub-therapeutic antibiotic concentrations, increasing their risk of therapeutic failure and/or the emergence of resistant pathogens. Some proposals to optimise antibiotic therapies in this clinical setting based on therapeutic drug monitoring are also discussed.
Collapse
|