1
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Kordi M, Borzouyi Z, Chitsaz S, Asmaei MH, Salami R, Tabarzad M. Antimicrobial peptides with anticancer activity: Today status, trends and their computational design. Arch Biochem Biophys 2023; 733:109484. [PMID: 36473507 DOI: 10.1016/j.abb.2022.109484] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 11/29/2022] [Accepted: 11/30/2022] [Indexed: 12/12/2022]
Abstract
Some antimicrobial peptides have been shown to be able to inhibit the proliferation of cancer cell lines. Various strategies for treating cancers with active peptides have been pursued. According to the reports, anticancer peptides are important therapeutic peptides, which can act through two distinct pathways: they either just create pores in the cell membrane, or they have a vital intracellular target. In this review, publications up to Sep. 2021 had extracted form Scopus and PubMed using "antimicrobial peptide" and "anticancer peptide" as keywords. In second step, "computational design" related publications extracted. Among publications, those have similar scopes were classified and selected based on mechanisms of action and application. In this review, the most recent advances in the field of antimicrobial peptides with anti-cancer activities have been summarized. Freely available webservers such as AntiCP, ACPP, iACP, iACP-GAEnsC, ACPred are discussed here. In conclusion, despite some limitations of ACPs such as production cost and challenges, short half-life and toxicity on normal cells, the beneficial properties of AMPs make some of them good therapeutic agents for cancer therapy. Towards designing novel ACPs, the computational methods have substantial position and have been used progressively, today.
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Affiliation(s)
- Masoumeh Kordi
- Department of Plant Science and Biotechnology, School of Life Sciences and Biotechnology, Shahid Beheshti University, Tehran, Iran.
| | - Zeynab Borzouyi
- Department of Agriculture, School of Agriculture and Plant Breeding, Islamic Azad University, Sabzevar, Iran
| | - Saideh Chitsaz
- Department of Microbiology, Islamic Azad University, Karaj, Iran
| | | | - Robab Salami
- Department of Plant Science and Biotechnology, School of Life Sciences and Biotechnology, Shahid Beheshti University, Tehran, Iran
| | - Maryam Tabarzad
- Protein Technology Research Center, Shahid Beheshti University of Medical Science, Iran.
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2
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In Vitro Study of Cytotoxic Mechanisms of Alkylphospholipids and Alkyltriazoles in Acute Lymphoblastic Leukemia Models. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27238633. [PMID: 36500726 PMCID: PMC9737184 DOI: 10.3390/molecules27238633] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Revised: 10/20/2022] [Accepted: 10/21/2022] [Indexed: 12/12/2022]
Abstract
This study investigates the efficacy of miltefosine, alkylphospholipid, and alkyltriazolederivative compounds against leukemia lineages. The cytotoxic effects and cellular and molecular mechanisms of the compounds were investigated. The inhibitory potential and mechanism of inhibition of cathepsins B and L, molecular docking simulation, molecular dynamics and binding free energy evaluation were performed to determine the interaction of cathepsins and compounds. Among the 21 compounds tested, C9 and C21 mainly showed cytotoxic effects in Jurkat and CCRF-CEM cells, two human acute lymphoblastic leukemia (ALL) lineages. Activation of induced cell death by C9 and C21 with apoptotic and necrosis-like characteristics was observed, including an increase in annexin-V+propidium iodide-, annexin-V+propidium iodide+, cleaved caspase 3 and PARP, cytochrome c release, and nuclear alterations. Bax inhibitor, Z-VAD-FMK, pepstatin, and necrostatin partially reduced cell death, suggesting that involvement of the caspase-dependent and -independent mechanisms is related to cell type. Compounds C9 and C21 inhibited cathepsin L by a noncompetitive mechanism, and cathepsin B by a competitive and noncompetitive mechanism, respectively. Complexes cathepsin-C9 and cathepsin-C21 exhibited significant hydrophobic interactions, water bridges, and hydrogen bonds. In conclusion, alkyltriazoles present cytotoxic activity against acute lymphoblastic lineages and represent a promising scaffold for the development of molecules for this application.
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3
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Westman J, Plumb J, Licht A, Yang M, Allert S, Naglik JR, Hube B, Grinstein S, Maxson ME. Calcium-dependent ESCRT recruitment and lysosome exocytosis maintain epithelial integrity during Candida albicans invasion. Cell Rep 2022; 38:110187. [PMID: 34986345 PMCID: PMC8755444 DOI: 10.1016/j.celrep.2021.110187] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 07/21/2021] [Accepted: 12/07/2021] [Indexed: 01/12/2023] Open
Abstract
Candida albicans is both a commensal and an opportunistic fungal pathogen. Invading hyphae of C. albicans secrete candidalysin, a pore-forming peptide toxin. To prevent cell death, epithelial cells must protect themselves from direct damage induced by candidalysin and by the mechanical forces exerted by expanding hyphae. We identify two key Ca2+-dependent repair mechanisms employed by epithelial cells to withstand candidalysin-producing hyphae. Using camelid nanobodies, we demonstrate candidalysin secretion directly into the invasion pockets induced by elongating C. albicans hyphae. The toxin induces oscillatory increases in cytosolic [Ca2+], which cause hydrolysis of PtdIns(4,5)P2 and loss of cortical actin. Epithelial cells dispose of damaged membrane regions containing candidalysin by an Alg-2/Alix/ESCRT-III-dependent blebbing process. At later stages, plasmalemmal tears induced mechanically by invading hyphae are repaired by exocytic insertion of lysosomal membranes. These two repair mechanisms maintain epithelial integrity and prevent mucosal damage during both commensal growth and infection by C. albicans.
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Affiliation(s)
- Johannes Westman
- Program in Cell Biology, The Hospital for Sick Children, Toronto, ON M5G 0A4, Canada
| | - Jonathan Plumb
- Program in Cell Biology, The Hospital for Sick Children, Toronto, ON M5G 0A4, Canada
| | - Anna Licht
- Program in Cell Biology, The Hospital for Sick Children, Toronto, ON M5G 0A4, Canada
| | - Mabel Yang
- Program in Cell Biology, The Hospital for Sick Children, Toronto, ON M5G 0A4, Canada
| | - Stefanie Allert
- Department of Microbial Pathogenicity Mechanisms, Leibniz Institute for Natural Product Research and Infection Biology-Hans Knöll Institute (HKI), 07745 Jena, Germany
| | - Julian R Naglik
- Centre for Host-Microbiome Interactions, Faculty of Dentistry, Oral and Craniofacial Sciences, King's College London, London SE1 9RT, UK
| | - Bernhard Hube
- Department of Microbial Pathogenicity Mechanisms, Leibniz Institute for Natural Product Research and Infection Biology-Hans Knöll Institute (HKI), 07745 Jena, Germany; Institute of Microbiology, Friedrich Schiller University, 07745 Jena, Germany.
| | - Sergio Grinstein
- Program in Cell Biology, The Hospital for Sick Children, Toronto, ON M5G 0A4, Canada; Department of Biochemistry, University of Toronto, Toronto, ON M5S 1A8, Canada; Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, ON M5C 1N8, Canada.
| | - Michelle E Maxson
- Program in Cell Biology, The Hospital for Sick Children, Toronto, ON M5G 0A4, Canada
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4
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Buri MV, Sperandio LP, de Souza KFS, Antunes F, Rezende MM, Melo CM, Pinhal MAS, Barros CC, Fernig DG, Yates EA, Ide JS, Smaili SS, Riske KA, Nader HB, Luis Dos Santos Tersariol I, Lima MA, Judice WAS, Miranda A, Paredes-Gamero EJ. Endocytosis and the Participation of Glycosaminoglycans Are Important to the Mechanism of Cell Death Induced by β-Hairpin Antimicrobial Peptides. ACS APPLIED BIO MATERIALS 2021; 4:6488-6501. [PMID: 35006908 DOI: 10.1021/acsabm.1c00390] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The cytotoxic mode of action of four antimicrobial peptides (AMPs) (gomesin, tachyplesin, protegrin, and polyphemusin) against a HeLa cell tumor model is discussed. A study of cell death by AMP stimulation revealed some similarities, including annexin-V externalization, reduction of mitochondrial potential, insensitivity against inhibitors of cell death, and membrane permeabilization. Evaluation of signaling proteins and gene expression that control cell death revealed wide variation in the responses to AMPs. However, the ability to cross cell membranes emerged as an important characteristic of AMP-dependent cell death, where endocytosis mediated by dynamin is a common mechanism. Furthermore, the affinity between AMPs and glycosaminoglycans (GAGs) and GAG participation in the cytotoxicity of AMPs were verified. The results show that, despite their primary and secondary structure homology, these peptides present different modes of action, but endocytosis and GAG participation are an important and common mechanism of cytotoxicity for β-hairpin peptides.
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Affiliation(s)
- Marcus Vinicius Buri
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil
| | - Letícia Paulino Sperandio
- Centro Interdisciplinar de Investigação Bioquímica, Universidade de Mogi Das Cruzes, Av. Dr. Cândido Xavier de Almeida Souza, 200, Mogi Das Cruzes 08780-911, São Paulo, Brazil.,Departamento de Farmacologia, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil
| | - Kamylla F S de Souza
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil
| | - Fernanda Antunes
- Departamento de Farmacologia, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil
| | - Marina Mastelaro Rezende
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil
| | - Carina Mucciolo Melo
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil
| | - Maria A S Pinhal
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil.,Departmento de Bioquímica, Faculdade de Medicina Do ABC, Santo André 09060-870, Brazil
| | - Carlos C Barros
- Departamento de Nutrição, Universidade Federal de Pelotas, R. Gomes Carneiro, No1, Pelotas 96010-610, Rio Grande do Sul, Brazil
| | - David G Fernig
- Department of Biochemistry and Systems Biology, ISMIB, University of Liverpool, Liverpool L69 7ZB, U.K
| | - Edwin A Yates
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil.,Department of Biochemistry and Systems Biology, ISMIB, University of Liverpool, Liverpool L69 7ZB, U.K
| | - Jaime S Ide
- Department of Psychiatry, Yale University School of Medicine, New Haven, Connecticut 06519, United States
| | - Soraya S Smaili
- Departamento de Farmacologia, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil
| | - Karin A Riske
- Departamento de Biofísica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil
| | - Helena B Nader
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil
| | | | - Marcelo Andrade Lima
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil
| | - Wagner A S Judice
- Centro Interdisciplinar de Investigação Bioquímica, Universidade de Mogi Das Cruzes, Av. Dr. Cândido Xavier de Almeida Souza, 200, Mogi Das Cruzes 08780-911, São Paulo, Brazil
| | - Antonio Miranda
- Departamento de Biofísica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil
| | - Edgar J Paredes-Gamero
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil.,Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grosso Do Sul, Campo Grande 79070-900, Mato Grosso do Sul, Brazil
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5
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Colella F, Scillitani G, Pierri CL. Sweet as honey, bitter as bile: Mitochondriotoxic peptides and other therapeutic proteins isolated from animal tissues, for dealing with mitochondrial apoptosis. Toxicology 2020; 447:152612. [PMID: 33171268 DOI: 10.1016/j.tox.2020.152612] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 10/02/2020] [Accepted: 10/06/2020] [Indexed: 02/06/2023]
Abstract
Mitochondria are subcellular organelles involved in cell metabolism and cell life-cycle. Their role in apoptosis regulation makes them an interesting target of new drugs for dealing with cancer or rare diseases. Several peptides and proteins isolated from animal and plant sources are known for their therapeutic properties and have been tested on cancer cell-lines and xenograft murine models, highlighting their ability in inducing cell-death by triggering mitochondrial apoptosis. Some of those molecules have been even approved as drugs. Conversely, many other bioactive compounds are still under investigation for their proapoptotic properties. In this review we report about a group of peptides, isolated from animal venoms, with potential therapeutic properties related to their ability in triggering mitochondrial apoptosis. This class of compounds is known with different names, such as mitochondriotoxins or mitocans.
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Affiliation(s)
- Francesco Colella
- Laboratory of Biochemistry, Molecular and Structural Biology, Department of Biosciences, Biotechnologies, Biopharmaceutics, University of Bari, Via E. Orabona, 4, 70125, Bari, Italy
| | | | - Ciro Leonardo Pierri
- Laboratory of Biochemistry, Molecular and Structural Biology, Department of Biosciences, Biotechnologies, Biopharmaceutics, University of Bari, Via E. Orabona, 4, 70125, Bari, Italy; BROWSer S.r.l. (https://browser-bioinf.com/) c/o Department of Biosciences, Biotechnologies, Biopharmaceutics, University "Aldo Moro" of Bari, Via E. Orabona, 4, 70126, Bari, Italy.
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6
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Cyclic gomesin, a stable redesigned spider peptide able to enter cancer cells. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2020; 1863:183480. [PMID: 32979382 DOI: 10.1016/j.bbamem.2020.183480] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 09/08/2020] [Accepted: 09/16/2020] [Indexed: 12/25/2022]
Abstract
Anticancer chemo- and targeted therapies are limited in some cases due to strong side effects and/or drug resistance. Peptides have received renascent interest as anticancer therapeutics and are currently being considered as alternatives and/or as complementary to biologics and small-molecule drugs. Gomesin, a disulfide-rich host defense peptide expressed in the Brazilian spider Acanthoscurria gomesiana selectively targets and disrupts cancer cell membranes. In the current study, we employed a range of biophysical methodologies with model membranes and bioassays to investigate the use of a cyclic analogue of gomesin as a drug scaffold to internalize cancer cells. We found that cyclic gomesin can internalize cancer cells via endocytosis and direct membrane permeation. In addition, we designed an improved non-disruptive and non-toxic cyclic gomesin analogue by incorporating D-amino acids within the scaffold. This improved analogue retained the ability to enter cancer cells and can be used as a scaffold to deliver drugs. Efforts to investigate the internalization mechanism used by host defense peptides, and to improve their stability, potency, selectivity and ability to permeate cancer cell membranes will increase the opportunities to repurpose peptides as templates for designing alternative anticancer therapeutic leads.
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7
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Câmara GA, Nishiyama-Jr MY, Kitano ES, Oliveira UC, da Silva PI, Junqueira-de-Azevedo IL, Tashima AK. A Multiomics Approach Unravels New Toxins With Possible In Silico Antimicrobial, Antiviral, and Antitumoral Activities in the Venom of Acanthoscurria rondoniae. Front Pharmacol 2020; 11:1075. [PMID: 32774304 PMCID: PMC7388414 DOI: 10.3389/fphar.2020.01075] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Accepted: 07/02/2020] [Indexed: 12/20/2022] Open
Abstract
The Araneae order is considered one of the most successful groups among venomous animals in the world. An important factor for this success is the production of venoms, a refined biological fluid rich in proteins, short peptides and cysteine-rich peptides (CRPs). These toxins may present pharmacologically relevant biological actions, as antimicrobial, antiviral and anticancer activities, for instance. Therefore, there is an increasing interest in the exploration of venom toxins for therapeutic reasons, such as drug development. However, the process of peptide sequencing and mainly the evaluation of potential biological activities of these peptides are laborious, considering the low yield of venom extraction and the high variability of toxins present in spider venoms. Here we show a robust methodology for identification, sequencing, and initial screening of potential bioactive peptides found in the venom of Acanthoscurria rondoniae. This methodology consists in a multiomics approach involving proteomics, peptidomics and transcriptomics analyses allied to in silico predictions of antibacterial, antifungal, antiviral, and anticancer activities. Through the application of this strategy, a total of 92,889 venom gland transcripts were assembled and 84 novel toxins were identified at the protein level, including seven short peptides and 10 fully sequenced CRPs (belonging to seven toxin families). In silico analysis suggests that seven CRPs families may have potential antimicrobial or antiviral activities, while two CRPs and four short peptides are potentially anticancer. Taken together, our results demonstrate an effective multiomics strategy for the discovery of new toxins and in silico screening of potential bioactivities. This strategy may be useful in toxin discovery, as well as in the screening of possible activities for the vast diversity of molecules produced by venomous animals.
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Affiliation(s)
- Guilherme A Câmara
- Departamento de Bioquímica, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Milton Y Nishiyama-Jr
- Laboratório Especial de Toxinologia Aplicada, Center of Toxins, Immune-Response and Cell Signaling, Instituto Butantan, São Paulo, Brazil
| | - Eduardo S Kitano
- Laboratory of Immunology, Heart Institute (InCor), Faculty of Medicine, University of Sao Paulo, Sao Paulo, Brazil
| | - Ursula C Oliveira
- Laboratório Especial de Toxinologia Aplicada, Center of Toxins, Immune-Response and Cell Signaling, Instituto Butantan, São Paulo, Brazil
| | - Pedro I da Silva
- Laboratório Especial de Toxinologia Aplicada, Center of Toxins, Immune-Response and Cell Signaling, Instituto Butantan, São Paulo, Brazil
| | - Inácio L Junqueira-de-Azevedo
- Laboratório Especial de Toxinologia Aplicada, Center of Toxins, Immune-Response and Cell Signaling, Instituto Butantan, São Paulo, Brazil
| | - Alexandre K Tashima
- Departamento de Bioquímica, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil.,Laboratório Especial de Toxinologia Aplicada, Center of Toxins, Immune-Response and Cell Signaling, Instituto Butantan, São Paulo, Brazil
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8
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Deplazes E, Chin YKY, King GF, Mancera RL. The unusual conformation of cross-strand disulfide bonds is critical to the stability of β-hairpin peptides. Proteins 2019; 88:485-502. [PMID: 31589791 DOI: 10.1002/prot.25828] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 08/27/2019] [Accepted: 09/17/2019] [Indexed: 01/04/2023]
Abstract
The cross-strand disulfides (CSDs) found in β-hairpin antimicrobial peptides (β-AMPs) show a unique disulfide geometry that is characterized by unusual torsion angles and a short Cα-Cα distance. While the sequence and disulfide bond connectivity of disulfide-rich peptides is well studied, much less is known about the disulfide geometry found in CSDs and their role in the stability of β-AMPs. To address this, we solved the nuclear magnetic resonance (NMR) structure of the β-AMP gomesin (Gm) at 278, 298, and 310 K, examined the disulfide bond geometry of over 800 disulfide-rich peptides, and carried out extensive molecular dynamics (MD) simulation of the peptides Gm and protegrin. The NMR data suggests Cα-Cα distances characteristic for CSDs are independent of temperature. Analysis of disulfide-rich peptides from the Protein Data Bank revealed that right-handed and left-handed rotamers are equally likely in CSDs. The previously reported preference for right-handed rotamers was likely biased by restricting the analysis to peptides and proteins solved using X-ray crystallography. Furthermore, data from MD simulations showed that the short Cα-Cα distance is critical for the stability of these peptides. The unique disulfide geometry of CSDs poses a challenge to biomolecular force fields and to retain the stability of β-hairpin fold over long simulation times, restraints on the torsion angles might be required.
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Affiliation(s)
- Evelyne Deplazes
- School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute and Curtin Institute for Computation, Curtin University, Perth, Western Australia, Australia
| | - Yanni K-Y Chin
- Institute for Molecular Bioscience, The University of Queensland, St Lucia, Queensland, Australia
| | - Glenn F King
- Institute for Molecular Bioscience, The University of Queensland, St Lucia, Queensland, Australia
| | - Ricardo L Mancera
- School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute and Curtin Institute for Computation, Curtin University, Perth, Western Australia, Australia
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9
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Odai S, Ito H, Kamachi T. Dendrimer porphyrins as the oxygen sensor for intracellular imaging to suppress interaction towards biological molecules. J Clin Biochem Nutr 2019; 65:178-184. [PMID: 31777418 PMCID: PMC6877409 DOI: 10.3164/jcbn.19-13] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Accepted: 02/07/2019] [Indexed: 12/19/2022] Open
Abstract
Optical methods using phosphorescence quenching by oxygen are suitable for the measurement of oxygen concentration within cells. In cells, however, the dyes such as Pt-porphyrins interact with biological components so that their optical properties are changed. Therefore, the absolute oxygen concentration determination in cells is difficult. To suppress this interaction, we focussed on porphyrin-cored dendrimers (dendrimer-porphyrins) and synthesized 2nd–4th generation dendrimer-porphyrins with various surface functional groups (G2–G4, ARG, αGLU and γGLU). These dendrimer-porphyrins showed oxygen sensing property and the change of their spectroscopic properties by biomolecules was supressed. Additionally, the dendrimer-porphyrins were accumulated in cells even in the presence of serum, so oxygen concentration imaging without the effect of serum starvation was also achieved.
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Affiliation(s)
- Shunsuke Odai
- Department of Life Science and Technology, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Hidehiro Ito
- Department of Life Science and Technology, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Toshiaki Kamachi
- Department of Life Science and Technology, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan
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10
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Tan Q, Zhang M, Geng L, Xia Z, Li C, Usman M, Du Y, Wei L, Bi H. Hormesis of methylmercury-human serum albumin conjugate on N9 microglia via ERK/MAPKs and STAT3 signaling pathways. Toxicol Appl Pharmacol 2018; 362:59-66. [PMID: 30352208 DOI: 10.1016/j.taap.2018.10.017] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Revised: 09/18/2018] [Accepted: 10/19/2018] [Indexed: 10/28/2022]
Abstract
Methylmercury (MeHg+) is an extremely toxic organomercury cation that can induce severe neurological damage. Once it enters the body, methylmercury binds to amino acids or proteins containing free sulfhydryl groups. In particular, methylmercury is known to bind with human serum albumin (HSA) in human plasma; however, the effects of methylmercury-HSA conjugate (MeHg-HSA) on the central nervous system (CNS) are not fully understood. In the present study, we used the microglial cell line N9 as the target cells to evaluate the effect of MeHg-HSA on physiological function of the CNS preliminarily. The various factors in the cell culture were monitored by MTT assay, total lactate dehydrogenase assay, ELISA, qPCR, Western blot and flow cytometry techniques. The results showed that low-dose treatment with MeHg-HSA activated N9 cells, promoting cell proliferation and total cell number, enhancing NO and intracellular Ca2+ levels, and suppressing the release of TNFα and IL1β without cytotoxic effects; while high-dose MeHg-HSA exhibited cytotoxic effects on N9 cells, including promoting cell death and increasing the secretion of TNFα and IL1β. These results indicate that MeHg-HSA causes hormesis in microglia N9 cells. Furthermore, ERK/MAPKs and STAT3 signaling pathways related to the hormesis of MeHg-HSA on N9 cells. In addition, low dose of MeHg-HSA might be viewed as something very close to a lowest observed adverse effect level (LOAEL) for N9 cells. These findings will be useful for investigating the hormesis mechanism of MeHg+ and exploring the specific functions of MeHg-sulfhydryl conjugates on the central nervous system.
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Affiliation(s)
- Qiaozhu Tan
- Qinghai Provincial Key Laboratory of Tibetan Medicine Pharmacology and Safety Evaluation, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China; University of Chinese Academy of Sciences, Beijing, China
| | - Ming Zhang
- Qinghai Provincial Key Laboratory of Tibetan Medicine Pharmacology and Safety Evaluation, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China; University of Chinese Academy of Sciences, Beijing, China
| | - Lujing Geng
- Qinghai Provincial Key Laboratory of Tibetan Medicine Pharmacology and Safety Evaluation, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China; University of Chinese Academy of Sciences, Beijing, China
| | - Zhenghua Xia
- Qinghai Provincial Key Laboratory of Tibetan Medicine Pharmacology and Safety Evaluation, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China; University of Chinese Academy of Sciences, Beijing, China
| | - Cen Li
- Qinghai Provincial Key Laboratory of Tibetan Medicine Pharmacology and Safety Evaluation, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China; Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
| | - Muhammad Usman
- Department of Biotechnology, Virtual University of Pakistan, Lahore, Pakistan
| | - Yuzhi Du
- Qinghai Provincial Key Laboratory of Tibetan Medicine Pharmacology and Safety Evaluation, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China; Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
| | - Lixin Wei
- Qinghai Provincial Key Laboratory of Tibetan Medicine Pharmacology and Safety Evaluation, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China; Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China.
| | - Hongtao Bi
- Qinghai Provincial Key Laboratory of Tibetan Medicine Pharmacology and Safety Evaluation, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China; Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China.
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11
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Tan Q, Liu Z, Li H, Liu Y, Xia Z, Xiao Y, Usman M, Du Y, Bi H, Wei L. Hormesis of mercuric chloride-human serum albumin adduct on N9 microglial cells via the ERK/MAPKs and JAK/STAT3 signaling pathways. Toxicology 2018; 408:62-69. [DOI: 10.1016/j.tox.2018.07.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 06/07/2018] [Accepted: 07/03/2018] [Indexed: 12/22/2022]
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12
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Gomesin inhibits melanoma growth by manipulating key signaling cascades that control cell death and proliferation. Sci Rep 2018; 8:11519. [PMID: 30068931 PMCID: PMC6070509 DOI: 10.1038/s41598-018-29826-4] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Accepted: 07/10/2018] [Indexed: 02/03/2023] Open
Abstract
Consistent with their diverse pharmacology, peptides derived from venomous animals have been developed as drugs to treat disorders as diverse as hypertension, diabetes and chronic pain. Melanoma has a poor prognosis due in part to its metastatic capacity, warranting further development of novel targeted therapies. This prompted us to examine the anti-melanoma activity of the spider peptides gomesin (AgGom) and a gomesin-like homolog (HiGom). AgGom and HiGom dose-dependently reduced the viability and proliferation of melanoma cells whereas it had no deleterious effects on non-transformed neonatal foreskin fibroblasts. Concordantly, gomesin-treated melanoma cells showed a reduced G0/G1 cell population. AgGom and HiGom compromised proliferation of melanoma cells via activation of the p53/p21 cell cycle check-point axis and the Hippo signaling cascade, together with attenuation of the MAP kinase pathway. We show that both gomesin peptides exhibit antitumoral activity in melanoma AVATAR-zebrafish xenograft tumors and that HiGom also reduces tumour progression in a melanoma xenograft mouse model. Taken together, our data highlight the potential of gomesin for development as a novel melanoma-targeted therapy.
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13
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The Biological and Biophysical Properties of the Spider Peptide Gomesin. Molecules 2018; 23:molecules23071733. [PMID: 30012962 PMCID: PMC6099743 DOI: 10.3390/molecules23071733] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2018] [Revised: 07/11/2018] [Accepted: 07/12/2018] [Indexed: 01/31/2023] Open
Abstract
This review summarises the current knowledge of Gomesin (Gm), an 18-residue long, cationic anti-microbial peptide originally isolated from the haemocytes of the Brazilian tarantula Acanthoscurria gomesiana. The peptide shows potent cytotoxic activity against clinically relevant microbes including Gram-positive and Gram-negative bacteria, fungi, and parasites. In addition, Gm shows in-vitro and in-vivo anti-cancer activities against several human and murine cancers. The peptide exerts its cytotoxic activity by permeabilising cell membranes, but the underlying molecular mechanism of action is still unclear. Due to its potential as a therapeutic agent, the structure and membrane-binding properties, as well as the leakage and cytotoxic activities of Gm have been studied using a range of techniques. This review provides a summary of these studies, with a particular focus on biophysical characterisation studies of peptide variants that have attempted to establish a structure-activity relationship. Future studies are still needed to rationalise the binding affinity and cell-type-specific selectivity of Gm and its variants, while more pre-clinical studies are required to develop Gm into a therapeutically useful peptide.
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14
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D'Alpino PHP, Moura GEDDD, Barbosa SCDA, Marques LDA, Eberlin MN, Nascimento FD, Tersariol ILDS. Differential cytotoxic effects on odontoblastic cells induced by self-adhesive resin cements as a function of the activation protocol. Dent Mater 2017; 33:1402-1415. [DOI: 10.1016/j.dental.2017.09.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Revised: 07/19/2017] [Accepted: 09/20/2017] [Indexed: 11/15/2022]
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15
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Figueira TN, Oliveira FD, Almeida I, Mello ÉO, Gomes VM, Castanho MARB, Gaspar D. Challenging metastatic breast cancer with the natural defensin PvD 1. NANOSCALE 2017; 9:16887-16899. [PMID: 29076508 DOI: 10.1039/c7nr05872a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Metastatic breast cancer is a very serious life threatening condition that poses many challenges for the pharmaceutical development of effective chemotherapeutics. As the therapeutics targeted to the localized masses in breast improve, metastatic lesions in the brain slowly increase in their incidence compromising successful treatment outcomes overall. The blood-brain-barrier (BBB) is one important obstacle for the management of breast cancer brain metastases. New therapeutic approaches are in demand for overcoming the BBB's breaching by breast tumor cells. In this work we demonstrate the potential dual role of a natural antimicrobial plant defensin, PvD1: it interferes with the formation of solid tumors in the breast and concomitantly controls adhesion of breast cancer cells to human brain endothelial cells. We have used a combination of techniques that probe PvD1's effect at the single cell level and reveal that this peptide can effectively damage breast tumor cells, leaving healthy breast and brain cells unaffected. Results suggest that PvD1 quickly internalizes in cancer cells but remains located in the membrane of normal cells with no significant damage to its structure and biomechanical properties. These interactions in turn modulate cell adhesiveness between tumor and BBB cells. PvD1 is a potential template for the design of innovative pharmacological approaches for metastatic breast cancer treatment: the manipulation of the biomechanical properties of tumor cells that ultimately prevent their attachment to the BBB.
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Affiliation(s)
- Tiago N Figueira
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Av. Prof. Egas Moniz, Lisbon 1649-028, Portugal.
| | - Filipa D Oliveira
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Av. Prof. Egas Moniz, Lisbon 1649-028, Portugal.
| | - Inês Almeida
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Av. Prof. Egas Moniz, Lisbon 1649-028, Portugal.
| | - Érica O Mello
- Laboratório de Fisiologia e Bioquímica de Microrganismos do Centro de Biociências e Biotecnologia da Universidade Estadual do Norte Fluminense Darcy Ribeiro, Avenida Alberto Lamego 2000, Campos dos Goytacazes, Rio de Janeiro, 28013-602, Brazil
| | - Valdirene M Gomes
- Laboratório de Fisiologia e Bioquímica de Microrganismos do Centro de Biociências e Biotecnologia da Universidade Estadual do Norte Fluminense Darcy Ribeiro, Avenida Alberto Lamego 2000, Campos dos Goytacazes, Rio de Janeiro, 28013-602, Brazil
| | - Miguel A R B Castanho
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Av. Prof. Egas Moniz, Lisbon 1649-028, Portugal.
| | - Diana Gaspar
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Av. Prof. Egas Moniz, Lisbon 1649-028, Portugal.
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16
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Yokoi K, Hisamatsu Y, Naito K, Aoki S. Design, Synthesis, and Anticancer Activities of Cyclometalated Tris(2-phenylpyridine)iridium(III) Complexes with Cationic Peptides at the 4′-Position of the 2-Phenylpyridine Ligand. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700846] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Kenta Yokoi
- Faculty of Pharmaceutical Sciences; Tokyo University of Science; 2641Yamazaki 278-8510 Noda Chiba Japan
| | - Yosuke Hisamatsu
- Faculty of Pharmaceutical Sciences; Tokyo University of Science; 2641Yamazaki 278-8510 Noda Chiba Japan
| | - Kana Naito
- Faculty of Pharmaceutical Sciences; Tokyo University of Science; 2641Yamazaki 278-8510 Noda Chiba Japan
| | - Shin Aoki
- Faculty of Pharmaceutical Sciences; Tokyo University of Science; 2641Yamazaki 278-8510 Noda Chiba Japan
- Division of Medical-Science-Engineering Cooperation; Research Institute for Science and Technology; Tokyo University of Science; 2641Yamazaki 278-8510 Noda Chiba Japan
- Imaging Frontier Center; Research Institute for Science and Technology; Tokyo University of Science; 2641Yamazaki 278-8510 Noda Chiba Japan
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17
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Kuzmin DV, Emelianova AA, Kalashnikova MB, Panteleev PV, Balandin SV, Serebrovskaya EO, Belogurova-Ovchinnikova OY, Ovchinnikova TV. Comparative in vitro study on cytotoxicity of recombinant β-hairpin peptides. Chem Biol Drug Des 2017; 91:294-303. [PMID: 28815904 DOI: 10.1111/cbdd.13081] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2017] [Revised: 07/19/2017] [Accepted: 07/27/2017] [Indexed: 02/06/2023]
Abstract
Natural antimicrobial peptides (AMPs) are important components of the innate immune system with a wide spectrum of biological activity. In this study, we investigated the cytotoxic effect of three recombinant β-hairpin cationic AMPs: arenicin-1 from the polychaeta Arenicola marina, tachyplesin I from the horseshoe crab Tachypleus tridentatus, and gomesin from the spider Acanthoscurria gomesiana. All the three β-hairpin AMPs were overexpressed in Escherichia coli. Different cell lines were incubated with various concentrations of the investigated AMPs in order to evaluate their cytotoxic activity. Double staining with subsequent flow cytometric analysis was used to determine the predominant way of cell death mediated by each AMP. Hemolytic activity of the peptides was tested against fresh human red blood cells. Our results indicated that all the three AMPs exhibited significant cytotoxic effect against cancer cells that varied depending on the cell line type and, in most cases, on the presence of serum components. Flow cytometric analysis implicitly indicated that tachyplesin I mostly promoted late apoptosis/necrosis, while arenicin-1 and gomesin induced early apoptosis under the same conditions. Tachyplesin I proved to be the most promising therapeutic candidate as it displayed the highest specific cytotoxicity against cancer cell lines, independent of the serum presence.
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Affiliation(s)
- Denis V Kuzmin
- M.M. Shemyakin and Yu.A. Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, Russia
| | - Anna A Emelianova
- M.M. Shemyakin and Yu.A. Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, Russia
| | - Mariana B Kalashnikova
- M.M. Shemyakin and Yu.A. Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, Russia
| | - Pavel V Panteleev
- M.M. Shemyakin and Yu.A. Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, Russia
| | - Sergey V Balandin
- M.M. Shemyakin and Yu.A. Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, Russia
| | - Ekaterina O Serebrovskaya
- M.M. Shemyakin and Yu.A. Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, Russia
| | | | - Tatiana V Ovchinnikova
- M.M. Shemyakin and Yu.A. Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, Russia
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18
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Vieira Torquato HF, Ribeiro-Filho AC, Buri MV, Araújo Júnior RT, Pimenta R, de Oliveira JSR, Filho VC, Macho A, Paredes-Gamero EJ, de Oliveira Martins DT. Canthin-6-one induces cell death, cell cycle arrest and differentiation in human myeloid leukemia cells. Biochim Biophys Acta Gen Subj 2017; 1861:958-967. [PMID: 28161479 DOI: 10.1016/j.bbagen.2017.01.033] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Revised: 01/18/2017] [Accepted: 01/30/2017] [Indexed: 02/06/2023]
Abstract
BACKGROUND Canthin-6-one is a natural product isolated from various plant genera and from fungi with potential antitumor activity. In the present study, we evaluate the antitumor effects of canthin-6-one in human myeloid leukemia lineages. METHODS Kasumi-1 lineage was used as a model for acute myeloid leukemia. Cells were treated with canthin-6-one and cell death, cell cycle and differentiation were evaluated in both total cells (Lin+) and leukemia stem cell population (CD34+CD38-Lin-/low). RESULTS Among the human lineages tested, Kasumi-1 was the most sensitive to canthin-6-one. Canthin-6-one induced cell death with apoptotic (caspase activation, decrease of mitochondrial potential) and necrotic (lysosomal permeabilization, double labeling of annexin V/propidium iodide) characteristics. Moreover, canthin-6-one induced cell cycle arrest at G0/G1 (7μM) and G2 (45μM) evidenced by DNA content, BrdU incorporation and cyclin B1/histone 3 quantification. Canthin-6-one also promoted differentiation of Kasumi-1, evidenced by an increase in the expression of myeloid markers (CD11b and CD15) and the transcription factor PU.1. Furthermore, a reduction of the leukemic stem cell population and clonogenic capability of stem cells were observed. CONCLUSIONS These results show that canthin-6-one can affect Kasumi-1 cells by promoting cell death, cell cycle arrest and cell differentiation depending on concentration used. GENERAL SIGNIFICANCE Canthin-6-one presents an interesting cytotoxic activity against leukemic cells and represents a promising scaffold for the development of molecules for anti-leukemic applications, especially by its anti-leukemic stem cell activity.
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Affiliation(s)
- Heron F Vieira Torquato
- Department of Basic Sciences in Health, Faculty of Medicine, Federal University of Mato Grosso (UFMT), Av. Fernando Correa da Costa, no. 2367, Boa Esperança, Cuiabá, Mato Grosso 78060-900, Brazil; Department of Biochemistry, Federal University of São Paulo (UNIFESP), Av. Pedro de Toledo, no. 669, São Paulo, São Paulo 04039-401, Brazil
| | - Antonio C Ribeiro-Filho
- Centro Interdisciplinar de Investigação Bioquı́mica, Universidade de Mogi das Cruzes, Av. Dr. Cândido Xavier de Almeida Souza, 200, Mogi das Cruzes, São Paulo, Brazil
| | - Marcus V Buri
- Department of Biochemistry, Federal University of São Paulo (UNIFESP), Av. Pedro de Toledo, no. 669, São Paulo, São Paulo 04039-401, Brazil
| | - Roberto T Araújo Júnior
- Department of Biochemistry, Federal University of São Paulo (UNIFESP), Av. Pedro de Toledo, no. 669, São Paulo, São Paulo 04039-401, Brazil
| | - Renata Pimenta
- Department of Medicine (Hematology), Federal University of São Paulo (UNIFESP), Av. Diogo de Faria, 824, São Paulo, São Paulo 04037-002, Brazil
| | - José Salvador R de Oliveira
- Department of Medicine (Hematology), Federal University of São Paulo (UNIFESP), Av. Diogo de Faria, 824, São Paulo, São Paulo 04037-002, Brazil
| | - Valdir C Filho
- Chemical-Pharmaceutical Research Center, University of Vale of Itajaí (UNIVALI), Rua Uruguai, no. 458, Centro, Itajaí, Santa Catarina 88302-202, Brazil
| | - Antonio Macho
- Department of Basic Sciences in Health, Faculty of Medicine, Federal University of Mato Grosso (UFMT), Av. Fernando Correa da Costa, no. 2367, Boa Esperança, Cuiabá, Mato Grosso 78060-900, Brazil
| | - Edgar J Paredes-Gamero
- Department of Biochemistry, Federal University of São Paulo (UNIFESP), Av. Pedro de Toledo, no. 669, São Paulo, São Paulo 04039-401, Brazil; Centro Interdisciplinar de Investigação Bioquı́mica, Universidade de Mogi das Cruzes, Av. Dr. Cândido Xavier de Almeida Souza, 200, Mogi das Cruzes, São Paulo, Brazil.
| | - Domingos T de Oliveira Martins
- Department of Basic Sciences in Health, Faculty of Medicine, Federal University of Mato Grosso (UFMT), Av. Fernando Correa da Costa, no. 2367, Boa Esperança, Cuiabá, Mato Grosso 78060-900, Brazil.
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19
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Balandin SV, Emelianova AA, Kalashnikova MB, Kokryakov VN, Shamova OV, Ovchinnikova TV. Molecular mechanisms of antitumor effect of natural antimicrobial peptides. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2017. [DOI: 10.1134/s1068162016060029] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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20
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Buri MV, Torquato HFV, Barros CC, Ide JS, Miranda A, Paredes-Gamero EJ. Comparison of Cytotoxic Activity in Leukemic Lineages Reveals Important Features of β-Hairpin Antimicrobial Peptides. J Cell Biochem 2017; 118:1764-1773. [PMID: 27987312 DOI: 10.1002/jcb.25844] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Accepted: 12/14/2016] [Indexed: 02/06/2023]
Abstract
Several reports described different modes of cell death triggered by antimicrobial peptides (AMPs) due to direct effects on membrane disruption, and more recently by apoptosis and necrosis-like patterns. Cytotoxic curves of four β-hairpin AMPs (gomesin, protegrin, tachyplesin, and polyphemusin) were obtained from several human leukemic lineages and normal monocytes and Two cell lines were then selected based on their cytotoxic sensitivity. One was sensitive to AMPs (K562) and the other resistant (KG-1) and their effect compared between these lineages. Thus, these lineages were chosen to further investigate biological features related with their cytotoxicities to AMPs. Stimulation with AMPs produced cell death, with activation of caspase-3, in K562 lineage. Increase on the fluidity of plasmatic membrane by reducing cholesterol potentiated cytotoxicity of AMPs in both lineages. Quantification of internal and external gomesin binding to the cellular membrane of both K562 and KG-1 cells showed that more peptide is accumulated inside of K562 cells. Additionally, evaluation of multi-drug resistant pumps activity showed that KG-1 has more activity than K562 lineage. A comparison of intrinsic gene patterns showed great differences between K562 and KG-1, but stimulation with gomesin promoted few changes in gene expression patterns. Differences in internalization process through the plasma membrane, multidrug resistance pumps activity, and gene expression pattern are important features to AMPs regulated cell death. J. Cell. Biochem. 118: 1764-1773, 2017. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Marcus V Buri
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, SP, Brazil
| | - Heron F Vieira Torquato
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, SP, Brazil
| | - Carlos Castilho Barros
- Departamento de Nutrição, Universidade Federal de Pelotas, R. Gomes Carneiro, n°1, 96010-610, Pelotas, RS, Brazil
| | - Jaime S Ide
- Department of Psychiatry, Yale University School of Medicine, New Haven 06519, Connecticut
| | - Antonio Miranda
- Departamento de Biofísica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, SP, Brazil
| | - Edgar J Paredes-Gamero
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, SP, Brazil.,Centro Interdisciplinar de Investigação Bioquı́mica, Universidade de Mogi das Cruzes, Av. Dr. Cândido Xavier de Almeida Souza, 200. Mogi das Cruzes, SP, Brazil
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21
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Hisamatsu Y, Suzuki N, Masum AA, Shibuya A, Abe R, Sato A, Tanuma SI, Aoki S. Cationic Amphiphilic Tris-Cyclometalated Iridium(III) Complexes Induce Cancer Cell Death via Interaction with Ca2+-Calmodulin Complex. Bioconjug Chem 2016; 28:507-523. [DOI: 10.1021/acs.bioconjchem.6b00627] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Yosuke Hisamatsu
- Faculty of Pharmaceutical Sciences, ‡Research Institute for Biomedical Sciences, §Division of Medical-Science-Engineering
Cooperation and ∥Imaging Frontier Center, Research Institute for Science
and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Nozomi Suzuki
- Faculty of Pharmaceutical Sciences, ‡Research Institute for Biomedical Sciences, §Division of Medical-Science-Engineering
Cooperation and ∥Imaging Frontier Center, Research Institute for Science
and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Abdullah-Al Masum
- Faculty of Pharmaceutical Sciences, ‡Research Institute for Biomedical Sciences, §Division of Medical-Science-Engineering
Cooperation and ∥Imaging Frontier Center, Research Institute for Science
and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Ai Shibuya
- Faculty of Pharmaceutical Sciences, ‡Research Institute for Biomedical Sciences, §Division of Medical-Science-Engineering
Cooperation and ∥Imaging Frontier Center, Research Institute for Science
and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Ryo Abe
- Faculty of Pharmaceutical Sciences, ‡Research Institute for Biomedical Sciences, §Division of Medical-Science-Engineering
Cooperation and ∥Imaging Frontier Center, Research Institute for Science
and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Akira Sato
- Faculty of Pharmaceutical Sciences, ‡Research Institute for Biomedical Sciences, §Division of Medical-Science-Engineering
Cooperation and ∥Imaging Frontier Center, Research Institute for Science
and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Sei-ichi Tanuma
- Faculty of Pharmaceutical Sciences, ‡Research Institute for Biomedical Sciences, §Division of Medical-Science-Engineering
Cooperation and ∥Imaging Frontier Center, Research Institute for Science
and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Shin Aoki
- Faculty of Pharmaceutical Sciences, ‡Research Institute for Biomedical Sciences, §Division of Medical-Science-Engineering
Cooperation and ∥Imaging Frontier Center, Research Institute for Science
and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
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22
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Eksteen JJ, Ausbacher D, Simon-Santamaria J, Stiberg T, Cavalcanti-Jacobsen C, Wushur I, Svendsen JS, Rekdal Ø. Iterative Design and in Vivo Evaluation of an Oncolytic Antilymphoma Peptide. J Med Chem 2016; 60:146-156. [PMID: 28004928 DOI: 10.1021/acs.jmedchem.6b00839] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Oncolytic peptides represent a promising new strategy within the field of cancer immunotherapy. Here we describe the systematic design and evaluation of short antilymphoma peptides within this paradigm. The peptides were tested in vitro and in vivo to identify a lead compound for further evaluation as novel oncolytic immunotherapeutic. In vitro tests revealed peptides with high activity against several lymphoma types and low cytotoxicity toward normal cells. Treated lymphoma cells exhibited a reduced mitochondrial membrane potential that resulted in an irreversible disintegration of their plasma membranes. No caspase activation or ultrastructural features of apoptotic cell death were observed. One of these peptides, 11, was shown to induce complete tumor regression and protective immunity following intralesional treatment of murine A20 B-lymphomas. Due to its selectivity for lymphoma cells and its ability to induce tumor-specific immune responses, 11 has the potential to be used in intralesional treatment of accessible lymphoma tumors.
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Affiliation(s)
- J Johannes Eksteen
- Lytix Biopharma AS , P.O. Box 6447, Siva Innovation Centre Tromsø, Tromsø NO-9294, Norway
| | | | | | | | | | | | - John S Svendsen
- Lytix Biopharma AS , P.O. Box 6447, Siva Innovation Centre Tromsø, Tromsø NO-9294, Norway
| | - Øystein Rekdal
- Lytix Biopharma AS , P.O. Box 6447, Siva Innovation Centre Tromsø, Tromsø NO-9294, Norway
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23
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Buri MV, Dias CC, Barbosa CMV, Nogueira-Pedro A, Ribeiro-Filho AC, Miranda A, Paredes-Gamero EJ. Gomesin acts in the immune system and promotes myeloid differentiation and monocyte/macrophage activation in mouse. Peptides 2016; 85:41-45. [PMID: 27614284 DOI: 10.1016/j.peptides.2016.09.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2016] [Revised: 09/03/2016] [Accepted: 09/05/2016] [Indexed: 12/15/2022]
Abstract
Due to the cytotoxic effect of antimicrobial peptides (AMP) against several microorganism and tumor cells has been proposed their association with the immune system. However, just a few reports have shown this relationship. In this study, mice were treated with gomesin, a β-hairpin AMP that exhibit high cytotoxicity against bacterial and tumor cells. Different effects in the immune system were observed, such as, decrease of CD3+ in T lymphocytes (Control: 17.7±1.4%; Gomesin: 7.67±1.2%) and in hematopoietic progenitors and increase of hematopoietic stem cell (Control: 0.046±0.004%; Gomesin: 0.067±0.003%), B220+ B lymphocytes (Control: 38.63±1.5%; Gomesin: 47.83±0.48%), and Mac-1+F4/80+ macrophages (Control: 11.76±3.4%; Gomesin: 27.13±4.0%). Additionally, macrophage increase was accompanied by an increase of macrophage phagocytosis (Control 20.85±1.53; Gomesin 31.32±1 Geometric mean), interleukin 6 (Control: 47.24±1.9ng/mL; Gomesin: 138.68±33.68ng/mL) and monocyte chemoattractant protein-1 (Control: 0.872±0.093ng/mL; Gomesin: 1.83±0.067ng/mL). Thus, this report showed immunomodulatory activity of gomesin in the immune system of mice.
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Affiliation(s)
- Marcus V Buri
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, 04044-020, São Paulo, SP, Brazil
| | - Carol C Dias
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, 04044-020, São Paulo, SP, Brazil
| | - Christiano M V Barbosa
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, 04044-020, São Paulo, SP, Brazil
| | - Amanda Nogueira-Pedro
- Departamento de Biofísica, Universidade Federal de São Paulo, R. Três de Maio 100, 04044-020, São Paulo, SP, Brazil
| | - Antonio C Ribeiro-Filho
- Centro Interdisciplinar de Investigação Bioquı́mica, Universidade de Mogi das Cruzes, Av. Dr. Cândido Xavier de Almeida Souza, 200, Mogi das Cruzes, SP, Brazil
| | - Antonio Miranda
- Departamento de Biofísica, Universidade Federal de São Paulo, R. Três de Maio 100, 04044-020, São Paulo, SP, Brazil.
| | - Edgar J Paredes-Gamero
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, 04044-020, São Paulo, SP, Brazil; Centro Interdisciplinar de Investigação Bioquı́mica, Universidade de Mogi das Cruzes, Av. Dr. Cândido Xavier de Almeida Souza, 200, Mogi das Cruzes, SP, Brazil.
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24
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Post-translational allosteric activation of the P2X7 receptor through glycosaminoglycan chains of CD44 proteoglycans. Cell Death Discov 2015; 1:15005. [PMID: 27551441 PMCID: PMC4979527 DOI: 10.1038/cddiscovery.2015.5] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Accepted: 06/05/2015] [Indexed: 12/21/2022] Open
Abstract
Here, we present evidence for the positive allosteric modulation of the P2X7 receptor through glycosaminoglycans (GAGs) in CHO (cell line derived from the ovary of the Chinese hamster) cells. The marked potentiation of P2X7 activity through GAGs in the presence of non-saturating agonists concentrations was evident with the endogenous expression of the receptor in CHO cells. The presence of GAGs on the surface of CHO cells greatly increased the sensitivity to adenosine 5'-triphosphate and changed the main P2X7 receptor kinetic parameters EC50, Hill coefficient and E max. GAGs decreased the allosteric inhibition of P2X7 receptor through Mg(2+). GAGs activated P2X7 receptor-mediated cytoplasmic Ca(2+) influx and pore formation. Consequently, wild-type CHO-K1 cells were 2.5-fold more sensitive to cell death induced through P2X7 agonists than mutant CHO-745 cells defective in GAGs biosynthesis. In the present study, we provide the first evidence that the P2X7 receptor interacts with CD44 on the CHO-K1 cell surface. Thus, these data demonstrated that GAGs positively modulate the P2X7 receptor, and sCD44 is a part of a regulatory positive feedback loop linking P2X7 receptor activation for the intracellular response mediated through P2X7 receptor stimulation.
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Domingues TM, Perez KR, Miranda A, Riske KA. Comparative study of the mechanism of action of the antimicrobial peptide gomesin and its linear analogue: The role of the β-hairpin structure. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2015; 1848:2414-21. [PMID: 26231588 DOI: 10.1016/j.bbamem.2015.07.012] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Revised: 07/08/2015] [Accepted: 07/21/2015] [Indexed: 12/31/2022]
Abstract
Gomesin (Gm) is an antimicrobial peptide first isolated from the hemolymph of a Brazilian spider. Its powerful antimicrobial activity is, however, accompanied by hemolysis. As an alternative to this issue, a linear analogue (named GmL) lacking the disulfide bonds was designed. Here, CD spectroscopy, a fluorescence-based leakage assay, isothermal titration calorimetry (ITC) and light scattering are used to study the interaction of both Gm and GmL with large unilamellar vesicles (LUVs) composed of POPC (palmitoyl oleoyl phosphatidylcholine) with 25 and 50 mol% POPG (palmitoyl oleoyl phosphatidylglycerol). The activities of Gm and GmL in respect to their binding affinity/enthalpy, ability to permeabilize membranes and to induce vesicle aggregation are correlated with peptide secondary structure. Whereas Gm displays a quite stable β-hairpin motif irrespective of the environment, GmL assumes a random conformation in aqueous solution and in the presence of 25 mol% POPG but adopts a β-like structure in the presence of 50 mol% POPG. Gm exhibited high lytic activity against both surface charge densities. Instead, the activity of GmL was found to be negligible in the presence of 25 mol% POPG LUVs, but comparable to that of the native peptide against 50 mol% POPG as a consequence of peptide structuring. We conclude that the activity of Gm and its linear analogue is intimately related to the formation of a β-turn motif, in which the hydrophobic residues form a hydrophobic face able to insert into the membrane and disrupt it.
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Affiliation(s)
- Tatiana M Domingues
- Departamento de Biofísica, Escola Paulista de Medicina, Universidade Federal de São Paulo, R. Pedro de Toledo 669, L9D, CEP 04039-032 São Paulo, SP, Brazil
| | - Katia R Perez
- Departamento de Biofísica, Escola Paulista de Medicina, Universidade Federal de São Paulo, R. Pedro de Toledo 669, L9D, CEP 04039-032 São Paulo, SP, Brazil
| | - Antonio Miranda
- Departamento de Biofísica, Escola Paulista de Medicina, Universidade Federal de São Paulo, R. Pedro de Toledo 669, L9D, CEP 04039-032 São Paulo, SP, Brazil
| | - Karin A Riske
- Departamento de Biofísica, Escola Paulista de Medicina, Universidade Federal de São Paulo, R. Pedro de Toledo 669, L9D, CEP 04039-032 São Paulo, SP, Brazil.
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26
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Hisamatsu Y, Shibuya A, Suzuki N, Suzuki T, Abe R, Aoki S. Design and Synthesis of Amphiphilic and Luminescent Tris-Cyclometalated Iridium(III) Complexes Containing Cationic Peptides as Inducers and Detectors of Cell Death via a Calcium-Dependent Pathway. Bioconjug Chem 2015; 26:857-79. [DOI: 10.1021/acs.bioconjchem.5b00095] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Yosuke Hisamatsu
- Faculty of Pharmaceutical Sciences, ‡Research Institute for Biomedical
Sciences, and §Division of Medical
Science-Engineering Corporation, Research Institute of Science and
Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Ai Shibuya
- Faculty of Pharmaceutical Sciences, ‡Research Institute for Biomedical
Sciences, and §Division of Medical
Science-Engineering Corporation, Research Institute of Science and
Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Nozomi Suzuki
- Faculty of Pharmaceutical Sciences, ‡Research Institute for Biomedical
Sciences, and §Division of Medical
Science-Engineering Corporation, Research Institute of Science and
Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Toshihiro Suzuki
- Faculty of Pharmaceutical Sciences, ‡Research Institute for Biomedical
Sciences, and §Division of Medical
Science-Engineering Corporation, Research Institute of Science and
Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Ryo Abe
- Faculty of Pharmaceutical Sciences, ‡Research Institute for Biomedical
Sciences, and §Division of Medical
Science-Engineering Corporation, Research Institute of Science and
Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Shin Aoki
- Faculty of Pharmaceutical Sciences, ‡Research Institute for Biomedical
Sciences, and §Division of Medical
Science-Engineering Corporation, Research Institute of Science and
Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
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27
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Lipopolysaccharide-Binding Motif Derived Peptides Induce Cell Membrane Damages in Human Lung Cancer and Hepatoma Cell Lines. Int J Pept Res Ther 2015. [DOI: 10.1007/s10989-015-9459-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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28
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Guerra-Álvarez M, Moreno-Ortega AJ, Navarro E, Fernández-Morales JC, Egea J, López MG, Cano-Abad MF. Positive allosteric modulation of alpha-7 nicotinic receptors promotes cell death by inducing Ca(2+) release from the endoplasmic reticulum. J Neurochem 2015; 133:309-19. [PMID: 25650007 DOI: 10.1111/jnc.13049] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Revised: 01/15/2015] [Accepted: 01/16/2015] [Indexed: 12/11/2022]
Abstract
Positive allosteric modulation of α7 isoform of nicotinic acetylcholine receptors (α7-nAChRs) is emerging as a promising therapeutic approach for central nervous system disorders such as schizophrenia or Alzheimer's disease. However, its effect on Ca(2+) signaling and cell viability remains controversial. This study focuses on how the type II positive allosteric modulator (PAM II) PNU120596 affects intracellular Ca(2+) signaling and cell viability. We used human SH-SY5Y neuroblastoma cells overexpressing α7-nAChRs (α7-SH) and their control (C-SH). We monitored cytoplasmic and endoplasmic reticulum (ER) Ca(2+) with Fura-2 and the genetically encoded cameleon targeting the ER, respectively. Nicotinic inward currents were measured using patch-clamp techniques. Viability was assessed using methylthiazolyl blue tetrazolium bromide or propidium iodide staining. We observed that in the presence of a nicotinic agonist, PNU120596 (i) reduced viability of α7-SH but not of C-SH cells; (ii) significantly increased inward nicotinic currents and cytosolic Ca(2+) concentration; (iii) released Ca(2+) from the ER by a Ca(2+) -induced Ca(2+) release mechanism only in α7-SH cells; (iv) was cytotoxic in rat organotypic hippocampal slice cultures; and, lastly, all these effects were prevented by selective blockade of α7-nAChRs, ryanodine receptors, or IP3 receptors. In conclusion, positive allosteric modulation of α7-nAChRs with the PAM II PNU120596 can lead to dysregulation of ER Ca(2+) , overloading of intracellular Ca(2+) , and neuronal cell death. This study focuses on how the type II positive allosteric modulator PNU120596 (PAM II PNU12) affects intracellular Ca(2+) signaling and cell viability. Using SH-SY5Y neuroblastoma cells overexpressing α7-nAChRs (α7-SH) and their control (C-SH), we find that PAM of α7-nAChRs with PNU120596: (i) increases inward calcium current (ICa ) and cytosolic Ca(2+) concentration ([Ca(2+) ]cyt ); (ii) releases Ca(2+) from the ER ([Ca(2+) ]ER ) by a Ca(2+) -induced Ca(2+) release mechanism; and (iv) reduces cell viability. These findings were corroborated in rat hippocampal organotypic cultures. [Ca(2+) ]cyt , cytosolic Ca(2+) concentration; [Ca(2+) ]ER , endoplasmic reticulum Ca(2+) concentration; α7 nAChR, α7 isoform of nicotinic acetylcholine receptors; α7-SH, SH-SY5Y stably overexpressing α7 nAChRs cells; C-SH, control SH-SY5Y cells; Nic, nicotine; PNU12, PNU120596.
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Affiliation(s)
- María Guerra-Álvarez
- Servicio de Farmacología Clínica, Instituto de Investigación Sanitaria, Hospital Universitario de la Princesa, Madrid, Spain
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29
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Design of a multicomponent peptide-woven nanocomplex for delivery of siRNA. PLoS One 2015; 10:e0118310. [PMID: 25705892 PMCID: PMC4338040 DOI: 10.1371/journal.pone.0118310] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2014] [Accepted: 01/14/2015] [Indexed: 11/28/2022] Open
Abstract
We developed and tested a multicomponent peptide-woven siRNA nanocomplex (PwSN) comprising different peptides designed for efficient cellular targeting, endosomal escape, and release of siRNA. To enhance tumor-specific cellular uptake, we connected an interleukin-4 receptor-targeting peptide (I4R) to a nine-arginine peptide (9r), yielding I4R-9r. To facilitate endosomal escape, we blended endosomolytic peptides into the I4R-9r to form a multicomponent nanocomplex. Lastly, we modified 9r peptides by varying the number and positions of positive charges to obtain efficient release of siRNA from the nanocomplex in the cytosol. Using this step-wise approach for overcoming the biological challenges of siRNA delivery, we obtained an optimized PwSN with significant biological activity in vitro and in vivo. Interestingly, surface plasmon resonance analyses and three-dimensional peptide models demonstrated that our designed peptide adopted a unique structure that was correlated with faster complex disassembly and a better gene-silencing effect. These studies further elucidate the siRNA nanocomplex delivery pathway and demonstrate the applicability of our stepwise strategy to the design of siRNA carriers capable of overcoming multiple challenges and achieving efficient delivery.
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Costa BA, Sanches L, Gomide AB, Bizerra F, Dal Mas C, Oliveira EB, Perez KR, Itri R, Oguiura N, Hayashi MAF. Interaction of the Rattlesnake Toxin Crotamine with Model Membranes. J Phys Chem B 2014; 118:5471-9. [DOI: 10.1021/jp411886u] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Bruno A. Costa
- Departamento
de Farmacologia, Universidade Federal de São Paulo (UNIFESP), São
Paulo 04044-020, Brazil
| | - Leonardo Sanches
- Laboratório
Especial de Ecologia e Evolução, Instituto Butantan, São
Paulo 05503-900, Brazil
| | - Andreza Barbosa Gomide
- Departamento
de Física Aplicada, Instituto de Fisica, Universidade de São Paulo (USP), São Paulo 05508-090, Brazil
| | - Fernando Bizerra
- Departamento
de Medicina, Universidade Federal de São Paulo (UNIFESP), São Paulo 04021-001, Brazil
| | - Caroline Dal Mas
- Departamento
de Farmacologia, Universidade Federal de São Paulo (UNIFESP), São
Paulo 04044-020, Brazil
| | - Eduardo B. Oliveira
- Departamento
de Bioquímica e Imunologia, Universidade de São Paulo, Ribeirão
Preto, São Paulo, 14096-000, Brazil
| | - Katia Regina Perez
- Departamento
de Biofísica, Universidade Federal de São Paulo (UNIFESP), São Paulo 04021-001, Brazil
| | - Rosangela Itri
- Departamento
de Física Aplicada, Instituto de Fisica, Universidade de São Paulo (USP), São Paulo 05508-090, Brazil
| | - Nancy Oguiura
- Laboratório
Especial de Ecologia e Evolução, Instituto Butantan, São
Paulo 05503-900, Brazil
| | - Mirian A. F. Hayashi
- Departamento
de Farmacologia, Universidade Federal de São Paulo (UNIFESP), São
Paulo 04044-020, Brazil
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31
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Mattei B, Miranda A, Perez KR, Riske KA. Structure-activity relationship of the antimicrobial peptide gomesin: the role of peptide hydrophobicity in its interaction with model membranes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:3513-3521. [PMID: 24606158 DOI: 10.1021/la500146j] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Antimicrobial peptides are part of the innate immune system of animals and plants. Their lytic activity against microorganisms generally depends on their ability to disrupt and permeabilize membranes. Here we study the structure-activity relationship of the antimicrobial peptide gomesin (Gm), from the spider Acanthoscurria gomesiana, with large unilamellar vesicles (LUVs) composed of 3:7 palmitoyloleoyl phosphatidylglycerol: palmitoyloleoyl phosphatidylcholine. Several synthetic analogues of Gm were designed to alter the hydrophobicity/charge of the molecule, whereby selected amino acid residues were replaced by alanine. Isothermal titration calorimetry (ITC) was used to assess the thermodynamic parameters of peptide binding to LUVs and light scattering measurements were made to evaluated peptide-induced vesicle aggregation. The ability of the peptides to permeabilize vesicles was quantified through the leakage of an entrapped fluorescent probe. The activity of peptides could be quantified in terms of the leakage extent induced and their affinity to the membrane, which was largely dictated by the exothermic enthalpy change. The results show that analogues more hydrophobic than Gm display higher activity, whereas peptides more hydrophilic than Gm have their activity almost abolished. Vesicle aggregation, on the other hand, largely increases with peptide charge. We conclude that interaction of Gm with membranes depends on an interplay between surface electrostatic interactions, which drive anchoring to the membrane surface and vesicle aggregation, and insertion of the hydrophobic portion into the membrane core, responsible for causing membrane rupture/permeabilization.
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Affiliation(s)
- Bruno Mattei
- Departamento de Biofísica, Universidade Federal de São Paulo , São Paulo, Brazil
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32
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Buri MV, Domingues TM, Paredes-Gamero EJ, Casaes-Rodrigues RL, Rodrigues EG, Miranda A. Resistance to degradation and cellular distribution are important features for the antitumor activity of gomesin. PLoS One 2013; 8:e80924. [PMID: 24312251 PMCID: PMC3843672 DOI: 10.1371/journal.pone.0080924] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2013] [Accepted: 10/18/2013] [Indexed: 12/25/2022] Open
Abstract
Many reports have shown that antimicrobial peptides exhibit anticancer abilities. Gomesin (Gm) exhibits potent cytotoxic activity against cancer cells by a membrane pore formation induced after well-orchestrated intracellular mechanisms. In this report, the replacements of the Cys by Ser or Thr, and the use D-amino acids in the Gm structure were done to investigate the importance of the resistance to degradation of the molecule with its cytotoxicity. [Thr2,6,11,15]-Gm, and [Ser2,6,11,15]-Gm exhibits low cytotoxicity, and low resistance to degradation, and after 24 h are present in localized area near to the membrane. Conversely, the use of D-amino acids in the analogue [D-Thr2,6,11,15]-D-Gm confers resistance to degradation, increases its potency, and maintained this peptide spread in the cytosol similarly to what happens with Gm. Replacements of Cys by Thr and Gln by L- or D-Pro ([D-Thr2,6,11,15, Pro9]-D-Gm, and [Thr2,6,11,15, D-Pro9]-Gm), which induced a similar β-hairpin conformation, also increase their resistance to degradation, and cytotoxicity, but after 24 h they are not present spread in the cytosol, exhibiting lower cytotoxicity in comparison to Gm. Additionally, chloroquine, a lysosomal enzyme inhibitor potentiated the effect of the peptides. Furthermore, the binding and internalization of peptides was determined, but a direct correlation among these factors was not observed. However, cholesterol ablation, which increase fluidity of cellular membrane, also increase cytotoxicity and internalization of peptides. β-hairpin spatial conformation, and intracellular localization/target, and the capability of entry are important properties of gomesin cytotoxicity.
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Affiliation(s)
- Marcus V. Buri
- Departamento de Biofísica, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Tatiana M. Domingues
- Departamento de Biofísica, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Edgar J. Paredes-Gamero
- Departamento de Biofísica, Universidade Federal de São Paulo, São Paulo, SP, Brazil
- Departamento de Bioquímica, Universidade Federal de São Paulo, São Paulo, SP, Brazil
- * E-mail: (EG); (AM)
| | | | - Elaine Guadelupe Rodrigues
- Departamento de Microbiologia, Imunologia e Parasitologia, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Antonio Miranda
- Departamento de Biofísica, Universidade Federal de São Paulo, São Paulo, SP, Brazil
- * E-mail: (EG); (AM)
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33
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Chan LY, Zhang VM, Huang YH, Waters NC, Bansal PS, Craik DJ, Daly NL. Cyclization of the Antimicrobial Peptide Gomesin with Native Chemical Ligation: Influences on Stability and Bioactivity. Chembiochem 2013; 14:617-24. [DOI: 10.1002/cbic.201300034] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2013] [Indexed: 11/06/2022]
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