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Wu S, Jiang P, Zhang X, Mao C, Dai Y, Zhuang H, Pang Y. Understanding the Transepithelial Transport and Transbilayer Diffusion of the Antihypertensive Peptide Asn-Cys-Trp: Insights from Caco-2 Cell Monolayers and the DPPC Model Membrane. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:9828-9841. [PMID: 38639269 DOI: 10.1021/acs.jafc.4c00155] [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: 04/20/2024]
Abstract
Understanding the transport mechanism of the peptide Asn-Cys-Trp (NCW) is crucial to improving its intestinal absorption and bioavailability. This study investigated the absorption of NCW through Caco-2 cell monolayers and its interaction with the DPPC bilayers. Results revealed that after a 3 h incubation, the Papp (AP-BL) and Papp (BL-AP) values of NCW at a concentration of 5 mmol/L were (22.24 ± 4.52) × 10-7 and (6.63 ± 2.31) × 10-7 cm/s, respectively, with the transport rates of 1.59 ± 0.32 and 0.62 ± 0.20%, indicating its moderate absorption. NCW was found to be transported via PepT1 and paracellular transport pathways, as evidenced by the significant impact of Gly-Pro and cytochalasin D on the Papp values. Moreover, NCW upregulated ZO-1 mRNA expression. Further investigation of the ZO-1-mediated interaction between NCW and tight junction proteins will contribute to a better understanding of the paracellular transport mechanism of NCW. The interaction between NCW and the DPPC bilayers was predominantly driven by entropy. NCW permeated the bilayers through electrostatic, hydrogen bonding, and hydrophobic interactions, resulting in increased fluidity, flexibility, and disorder as well as phase transition and phase separation of the bilayers.
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Affiliation(s)
- Sijia Wu
- College of Food Science and Engineering, Jilin University, Changchun 130062, P.R. China
| | - Ping Jiang
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Xiaoliang Zhang
- College of Food Science and Engineering, Jilin University, Changchun 130062, P.R. China
| | - Chen Mao
- College of Food Science and Engineering, Jilin University, Changchun 130062, P.R. China
| | - Yaxi Dai
- College of Food Science and Engineering, Jilin University, Changchun 130062, P.R. China
| | - Hong Zhuang
- College of Food Science and Engineering, Jilin University, Changchun 130062, P.R. China
| | - Yong Pang
- College of Food Science and Engineering, Jilin University, Changchun 130062, P.R. China
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2
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Prew MS, Camara CM, Botzanowski T, Moroco JA, Bloch NB, Levy HR, Seo HS, Dhe-Paganon S, Bird GH, Herce HD, Gygi MA, Escudero S, Wales TE, Engen JR, Walensky LD. Structural basis for defective membrane targeting of mutant enzyme in human VLCAD deficiency. Nat Commun 2022; 13:3669. [PMID: 35760926 PMCID: PMC9237092 DOI: 10.1038/s41467-022-31466-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 06/17/2022] [Indexed: 12/03/2022] Open
Abstract
Very long-chain acyl-CoA dehydrogenase (VLCAD) is an inner mitochondrial membrane enzyme that catalyzes the first and rate-limiting step of long-chain fatty acid oxidation. Point mutations in human VLCAD can produce an inborn error of metabolism called VLCAD deficiency that can lead to severe pathophysiologic consequences, including cardiomyopathy, hypoglycemia, and rhabdomyolysis. Discrete mutations in a structurally-uncharacterized C-terminal domain region of VLCAD cause enzymatic deficiency by an incompletely defined mechanism. Here, we conducted a structure-function study, incorporating X-ray crystallography, hydrogen-deuterium exchange mass spectrometry, computational modeling, and biochemical analyses, to characterize a specific membrane interaction defect of full-length, human VLCAD bearing the clinically-observed mutations, A450P or L462P. By disrupting a predicted α-helical hairpin, these mutations either partially or completely impair direct interaction with the membrane itself. Thus, our data support a structural basis for VLCAD deficiency in patients with discrete mutations in an α-helical membrane-binding motif, resulting in pathologic enzyme mislocalization.
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Affiliation(s)
- Michelle S. Prew
- grid.65499.370000 0001 2106 9910Department of Pediatric Oncology, Dana-Farber Cancer Institute, Boston, MA USA ,grid.65499.370000 0001 2106 9910Linde Program in Cancer Chemical Biology, Dana-Farber Cancer Institute, Boston, MA USA
| | - Christina M. Camara
- grid.65499.370000 0001 2106 9910Department of Pediatric Oncology, Dana-Farber Cancer Institute, Boston, MA USA ,grid.65499.370000 0001 2106 9910Linde Program in Cancer Chemical Biology, Dana-Farber Cancer Institute, Boston, MA USA
| | - Thomas Botzanowski
- grid.261112.70000 0001 2173 3359Department of Chemistry and Chemical Biology, Northeastern University, Boston, MA USA
| | - Jamie A. Moroco
- grid.261112.70000 0001 2173 3359Department of Chemistry and Chemical Biology, Northeastern University, Boston, MA USA
| | - Noah B. Bloch
- grid.65499.370000 0001 2106 9910Department of Pediatric Oncology, Dana-Farber Cancer Institute, Boston, MA USA ,grid.65499.370000 0001 2106 9910Linde Program in Cancer Chemical Biology, Dana-Farber Cancer Institute, Boston, MA USA
| | - Hannah R. Levy
- grid.65499.370000 0001 2106 9910Department of Pediatric Oncology, Dana-Farber Cancer Institute, Boston, MA USA ,grid.65499.370000 0001 2106 9910Linde Program in Cancer Chemical Biology, Dana-Farber Cancer Institute, Boston, MA USA
| | - Hyuk-Soo Seo
- grid.65499.370000 0001 2106 9910Linde Program in Cancer Chemical Biology, Dana-Farber Cancer Institute, Boston, MA USA ,grid.65499.370000 0001 2106 9910Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA USA
| | - Sirano Dhe-Paganon
- grid.65499.370000 0001 2106 9910Linde Program in Cancer Chemical Biology, Dana-Farber Cancer Institute, Boston, MA USA ,grid.65499.370000 0001 2106 9910Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA USA
| | - Gregory H. Bird
- grid.65499.370000 0001 2106 9910Department of Pediatric Oncology, Dana-Farber Cancer Institute, Boston, MA USA ,grid.65499.370000 0001 2106 9910Linde Program in Cancer Chemical Biology, Dana-Farber Cancer Institute, Boston, MA USA
| | - Henry D. Herce
- grid.65499.370000 0001 2106 9910Department of Pediatric Oncology, Dana-Farber Cancer Institute, Boston, MA USA ,grid.65499.370000 0001 2106 9910Linde Program in Cancer Chemical Biology, Dana-Farber Cancer Institute, Boston, MA USA
| | - Micah A. Gygi
- grid.65499.370000 0001 2106 9910Department of Pediatric Oncology, Dana-Farber Cancer Institute, Boston, MA USA ,grid.65499.370000 0001 2106 9910Linde Program in Cancer Chemical Biology, Dana-Farber Cancer Institute, Boston, MA USA
| | - Silvia Escudero
- grid.65499.370000 0001 2106 9910Department of Pediatric Oncology, Dana-Farber Cancer Institute, Boston, MA USA ,grid.65499.370000 0001 2106 9910Linde Program in Cancer Chemical Biology, Dana-Farber Cancer Institute, Boston, MA USA
| | - Thomas E. Wales
- grid.261112.70000 0001 2173 3359Department of Chemistry and Chemical Biology, Northeastern University, Boston, MA USA
| | - John R. Engen
- grid.261112.70000 0001 2173 3359Department of Chemistry and Chemical Biology, Northeastern University, Boston, MA USA
| | - Loren D. Walensky
- grid.65499.370000 0001 2106 9910Department of Pediatric Oncology, Dana-Farber Cancer Institute, Boston, MA USA ,grid.65499.370000 0001 2106 9910Linde Program in Cancer Chemical Biology, Dana-Farber Cancer Institute, Boston, MA USA
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Farrugia MY, Caruana M, Ghio S, Camilleri A, Farrugia C, Cauchi RJ, Cappelli S, Chiti F, Vassallo N. Toxic oligomers of the amyloidogenic HypF-N protein form pores in mitochondrial membranes. Sci Rep 2020; 10:17733. [PMID: 33082392 PMCID: PMC7575562 DOI: 10.1038/s41598-020-74841-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Accepted: 10/06/2020] [Indexed: 12/30/2022] Open
Abstract
Studies on the amyloidogenic N-terminal domain of the E. coli HypF protein (HypF-N) have contributed significantly to a detailed understanding of the pathogenic mechanisms in neurodegenerative diseases characterised by the formation of misfolded oligomers, by proteins such as amyloid-β, α-synuclein and tau. Given that both cell membranes and mitochondria are increasingly recognised as key targets of oligomer toxicity, we investigated the damaging effects of aggregates of HypF-N on mitochondrial membranes. Essentially, we found that HypF-N oligomers characterised by high surface hydrophobicity (type A) were able to trigger a robust permeabilisation of mito-mimetic liposomes possessing cardiolipin-rich membranes and dysfunction of isolated mitochondria, as demonstrated by a combination of mitochondrial shrinking, lowering of mitochondrial membrane potential and cytochrome c release. Furthermore, using single-channel electrophysiology recordings we obtained evidence that the type A aggregates induced currents reflecting formation of ion-conducting pores in mito-mimetic planar phospholipid bilayers, with multi-level conductances ranging in the hundreds of pS at negative membrane voltages. Conversely, HypF-N oligomers with low surface hydrophobicity (type B) could not permeabilise or porate mitochondrial membranes. These results suggest an inherent toxicity of membrane-active aggregates of amyloid-forming proteins to mitochondria, and that targeting of oligomer-mitochondrial membrane interactions might therefore afford protection against such damage.
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Affiliation(s)
- Maria Ylenia Farrugia
- Department of Physiology and Biochemistry, Faculty of Medicine and Surgery, University of Malta, Msida, Malta
- Centre for Molecular Medicine and Biobanking, University of Malta, Msida, Malta
| | - Mario Caruana
- Centre for Molecular Medicine and Biobanking, University of Malta, Msida, Malta
| | - Stephanie Ghio
- Department of Physiology and Biochemistry, Faculty of Medicine and Surgery, University of Malta, Msida, Malta
- Centre for Molecular Medicine and Biobanking, University of Malta, Msida, Malta
| | - Angelique Camilleri
- Department of Physiology and Biochemistry, Faculty of Medicine and Surgery, University of Malta, Msida, Malta
- Centre for Molecular Medicine and Biobanking, University of Malta, Msida, Malta
| | | | - Ruben J Cauchi
- Department of Physiology and Biochemistry, Faculty of Medicine and Surgery, University of Malta, Msida, Malta
- Centre for Molecular Medicine and Biobanking, University of Malta, Msida, Malta
| | - Sara Cappelli
- Section of Biochemistry, Department of Experimental and Clinical Biomedical Sciences, University of Florence, 50134, Florence, Italy
| | - Fabrizio Chiti
- Section of Biochemistry, Department of Experimental and Clinical Biomedical Sciences, University of Florence, 50134, Florence, Italy
| | - Neville Vassallo
- Department of Physiology and Biochemistry, Faculty of Medicine and Surgery, University of Malta, Msida, Malta.
- Centre for Molecular Medicine and Biobanking, University of Malta, Msida, Malta.
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Chacko IA, Ghate VM, Dsouza L, Lewis SA. Lipid vesicles: A versatile drug delivery platform for dermal and transdermal applications. Colloids Surf B Biointerfaces 2020; 195:111262. [PMID: 32736123 DOI: 10.1016/j.colsurfb.2020.111262] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 06/19/2020] [Accepted: 07/14/2020] [Indexed: 12/19/2022]
Abstract
Topical and transdermal application of active pharmaceutical ingredients to the skin is an attractive strategy being explored by formulation scientists to treat disease conditions rather than the oral drug delivery. Several approaches have been attempted, and many of them have emerged with significant clinical potential. However, the delivery of drugs across the skin is an arduous task due to permeation limiting barriers. It, therefore, requires the aid of external agents or carrier systems for efficient permeation. Lipid-based vesicular systems are carriers for the transport of drugs through the stratum corneum (dermal drug delivery) and into the bloodstream for systemic action (transdermal drug delivery) overcoming the barrier properties. This review article describes the various vesicular systems reported for skin delivery of actives with relevant case studies. The vesicular systems presented here are in the order of their advent from conventional systems to the advanced lipid vesicles. The design and development of drugs in vesicular systems have brought a new dimension to the treatment of disease conditions overcoming the permeation limiting barriers, thus improving its efficacy.
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Affiliation(s)
- Indhu A Chacko
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 576104, India
| | - Vivek M Ghate
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 576104, India
| | - Leonna Dsouza
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 576104, India
| | - Shaila A Lewis
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 576104, India.
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Ghio S, Camilleri A, Caruana M, Ruf VC, Schmidt F, Leonov A, Ryazanov S, Griesinger C, Cauchi RJ, Kamp F, Giese A, Vassallo N. Cardiolipin Promotes Pore-Forming Activity of Alpha-Synuclein Oligomers in Mitochondrial Membranes. ACS Chem Neurosci 2019; 10:3815-3829. [PMID: 31356747 DOI: 10.1021/acschemneuro.9b00320] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Aggregation of the amyloid-forming α-synuclein (αS) protein is closely associated with the etiology of Parkinson's disease (PD), the most common motor neurodegenerative disorder. Many studies have shown that soluble aggregation intermediates of αS, termed oligomers, permeabilize a variety of phospholipid membranes; thus, membrane disruption may represent a key pathogenic mechanism of αS toxicity. Given the centrality of mitochondrial dysfunction in PD, we therefore probed the formation of ion-permeable pores by αS oligomers in planar lipid bilayers reflecting the complex phospholipid composition of mitochondrial membranes. Using single-channel electrophysiology, we recorded distinct multilevel conductances (100-400 pS) with stepwise current transitions, typical of protein-bound nanopores, in mitochondrial-like membranes. Crucially, we observed that the presence of cardiolipin (CL), the signature phospholipid of mitochondrial membranes, enhanced αS-lipid interaction and the membrane pore-forming activity of αS oligomers. Further, preincubation of isolated mitochondria with a CL-specific dye protected against αS oligomer-induced mitochondrial swelling and release of cytochrome c. Hence, we favor a scenario in which αS oligomers directly porate a local lipid environment rich in CL, for instance outer mitochondrial contact sites or the inner mitochondrial membrane, to induce mitochondrial dysfunction. Pharmacological modulation of αS pore complex formation might thus preserve mitochondrial membrane integrity and alleviate mitochondrial dysfunction in PD.
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Affiliation(s)
- Stephanie Ghio
- Department of Physiology and Biochemistry and Centre for Molecular Medicine and Biobanking, University of Malta, Msida, Malta
| | - Angelique Camilleri
- Department of Physiology and Biochemistry and Centre for Molecular Medicine and Biobanking, University of Malta, Msida, Malta
| | - Mario Caruana
- Department of Physiology and Biochemistry and Centre for Molecular Medicine and Biobanking, University of Malta, Msida, Malta
| | - Viktoria C. Ruf
- Center for Neuropathology and Prion Research, Ludwig-Maximilians-University, Munich, Germany
| | - Felix Schmidt
- Center for Neuropathology and Prion Research, Ludwig-Maximilians-University, Munich, Germany
| | - Andrei Leonov
- Department of NMR-based Structural Biology, Max Planck Institute for Biophysical Chemistry, Göttingen, Germany
| | - Sergey Ryazanov
- Department of NMR-based Structural Biology, Max Planck Institute for Biophysical Chemistry, Göttingen, Germany
- MODAG GmbH, Wendelsheim, Germany
| | - Christian Griesinger
- Department of NMR-based Structural Biology, Max Planck Institute for Biophysical Chemistry, Göttingen, Germany
| | - Ruben J. Cauchi
- Department of Physiology and Biochemistry and Centre for Molecular Medicine and Biobanking, University of Malta, Msida, Malta
| | - Frits Kamp
- Biomedical Center, Metabolic Biochemistry, Ludwig-Maximilians-University, Munich, Germany
| | - Armin Giese
- Center for Neuropathology and Prion Research, Ludwig-Maximilians-University, Munich, Germany
| | - Neville Vassallo
- Department of Physiology and Biochemistry and Centre for Molecular Medicine and Biobanking, University of Malta, Msida, Malta
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6
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Malhotra K, Modak A, Nangia S, Daman TH, Gunsel U, Robinson VL, Mokranjac D, May ER, Alder NN. Cardiolipin mediates membrane and channel interactions of the mitochondrial TIM23 protein import complex receptor Tim50. SCIENCE ADVANCES 2017; 3:e1700532. [PMID: 28879236 PMCID: PMC5580885 DOI: 10.1126/sciadv.1700532] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Accepted: 08/04/2017] [Indexed: 05/07/2023]
Abstract
The phospholipid cardiolipin mediates the functional interactions of proteins that reside within energy-conserving biological membranes. However, the molecular basis by which this lipid performs this essential cellular role is not well understood. We address this role of cardiolipin using the multisubunit mitochondrial TIM23 protein transport complex as a model system. The early stages of protein import by this complex require specific interactions between the polypeptide substrate receptor, Tim50, and the membrane-bound channel-forming subunit, Tim23. Using analyses performed in vivo, in isolated mitochondria, and in reductionist nanoscale model membrane systems, we show that the soluble receptor domain of Tim50 interacts with membranes and with specific sites on the Tim23 channel in a manner that is directly modulated by cardiolipin. To obtain structural insights into the nature of these interactions, we obtained the first small-angle x-ray scattering-based structure of the soluble Tim50 receptor in its entirety. Using these structural insights, molecular dynamics simulations combined with a range of biophysical measurements confirmed the role of cardiolipin in driving the association of the Tim50 receptor with lipid bilayers with concomitant structural changes, highlighting the role of key structural elements in mediating this interaction. Together, these results show that cardiolipin is required to mediate specific receptor-channel associations in the TIM23 complex. Our results support a new working model for the dynamic structural changes that occur within the complex during transport. More broadly, this work strongly advances our understanding of how cardiolipin mediates interactions among membrane-associated proteins.
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Affiliation(s)
- Ketan Malhotra
- Department of Molecular and Cell Biology, University of Connecticut, 91 North Eagleville Road, Storrs, CT 06269–3125, USA
| | - Arnab Modak
- Department of Molecular and Cell Biology, University of Connecticut, 91 North Eagleville Road, Storrs, CT 06269–3125, USA
| | - Shivangi Nangia
- Department of Molecular and Cell Biology, University of Connecticut, 91 North Eagleville Road, Storrs, CT 06269–3125, USA
| | - Tyler H. Daman
- Department of Molecular and Cell Biology, University of Connecticut, 91 North Eagleville Road, Storrs, CT 06269–3125, USA
| | - Umut Gunsel
- Department of Physiological Chemistry, Biomedical Center Munich, Ludwig-Maximilian University of Munich, 82152 Planegg-Martinsried, Germany
| | - Victoria L. Robinson
- Department of Molecular and Cell Biology, University of Connecticut, 91 North Eagleville Road, Storrs, CT 06269–3125, USA
| | - Dejana Mokranjac
- Department of Physiological Chemistry, Biomedical Center Munich, Ludwig-Maximilian University of Munich, 82152 Planegg-Martinsried, Germany
| | - Eric R. May
- Department of Molecular and Cell Biology, University of Connecticut, 91 North Eagleville Road, Storrs, CT 06269–3125, USA
| | - Nathan N. Alder
- Department of Molecular and Cell Biology, University of Connecticut, 91 North Eagleville Road, Storrs, CT 06269–3125, USA
- Corresponding author.
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Sathappa M, Alder N. Ionization Properties of Phospholipids Determined by Zeta Potential Measurements. Bio Protoc 2016. [DOI: 10.21769/bioprotoc.2030] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
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