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Ojomoko LO, Kryukova EV, Egorova NS, Salikhov AI, Epifanova LA, Denisova DA, Khomutov AR, Sukhov DA, Vassilevski AA, Khomutov MA, Tsetlin VI, Shelukhina IV. Inhibition of nicotinic acetylcholine receptors by oligoarginine peptides and polyamine-related compounds. Front Pharmacol 2023; 14:1327603. [PMID: 38169863 PMCID: PMC10758494 DOI: 10.3389/fphar.2023.1327603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 11/30/2023] [Indexed: 01/05/2024] Open
Abstract
Oligoarginine peptides, known mostly for their cell-penetrating properties, are also inhibitors of the nicotinic acetylcholine receptors (nAChRs). Since octa-arginine (R8) inhibits α9α10 nAChR and suppresses neuropathic pain, we checked if other polycationic compounds containing amino and/or guanidino groups could be effective and tested the activity of the disulfide-fixed "cyclo"R8, a series of biogenic polyamines (putrescine, spermidine, and spermine), C-methylated spermine analogs, agmatine and its analogs, as well as acylpolyamine argiotoxin-636 from spider venom. Their inhibitory potency on muscle-type, α7 and α9α10 nAChRs was determined using radioligand analysis, electrophysiology, and calcium imaging. "Cyclo"R8 showed similar activity to that of R8 against α9α10 nAChR (IC50 ≈ 60 nM). Biogenic polyamines as well as agmatine and its analogs displayed low activity on muscle-type Torpedo californica, as well as α7 and α9α10 nAChRs, which increased with chain length, the most active being spermine and its C-methylated derivatives having IC50 of about 30 μM against muscle-type T. californica nAChR. Argiotoxin-636, which contains a polyamine backbone and terminal guanidino group, also weakly inhibited T. californica nAChR (IC50 ≈ 15 μM), but it revealed high potency against rat α9α10 nAChR (IC50 ≈ 200 nM). We conclude that oligoarginines and similar polycationic compounds effectively inhibiting α9α10 nAChR may serve as a basis for the development of analgesics to reduce neuropathic pain.
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Affiliation(s)
- Lucy O. Ojomoko
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - Elena V. Kryukova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - Natalya S. Egorova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - Arthur I. Salikhov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
| | - Lyubov A. Epifanova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - Daria A. Denisova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - Alex R. Khomutov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
| | - Dmitry A. Sukhov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - Alexander A. Vassilevski
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
- Moscow Institute of Physics and Technology (State University), Moscow, Russia
| | - Maxim A. Khomutov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
| | - Victor I. Tsetlin
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - Irina V. Shelukhina
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
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2
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Severyukhina MS, Ismailova AM, Shaykhutdinova ER, Dyachenko IA, Egorova NS, Murashev AN, Tsetlin VI, Utkin YN. Synthetic Peptide Fragments of the Wtx Toxin Reduce Blood Pressure in Rats under General Anesthesia. DOKL BIOCHEM BIOPHYS 2023; 513:319-323. [PMID: 37700213 PMCID: PMC10808285 DOI: 10.1134/s1607672923700497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 07/29/2023] [Accepted: 07/29/2023] [Indexed: 09/14/2023]
Abstract
Previously, it was shown that the non-conventional toxin WTX from the venom of the cobra Naja kaouthia, when administered intravenously, caused a decrease in blood pressure (BP) and an increase in heart rate (HR) in rats [13]. To identify the site of the toxin molecule responsible for these effects, we studied the influence of synthetic peptide fragments of the WTX on BP and HR in normotensive male Sprague-Dawley rats under general anesthesia induced by Telazol and Xylazine. It was found that peptides corresponding to the WTX central polypeptide loop, stabilized by a disulfide bond, at intravenous injection at concentrations from 0.1 to 1.0 mg/mL caused a dose-dependent decrease in BP, with the HR increasing only in the first 5-10 min after administration. Thus, WTX fragments corresponding to the central polypeptide loop reproduce the decrease in blood pressure caused by the toxin.
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Affiliation(s)
- M S Severyukhina
- Branch of Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Pushchino, Russia
- Pushchino State Natural-Science Institute, Pushchino, Russia
| | - A M Ismailova
- Branch of Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Pushchino, Russia
| | - E R Shaykhutdinova
- Branch of Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Pushchino, Russia
| | - I A Dyachenko
- Branch of Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Pushchino, Russia
| | - N S Egorova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - A N Murashev
- Branch of Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Pushchino, Russia
| | - V I Tsetlin
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - Yu N Utkin
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia.
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Severyukhina MS, Ismailova AM, Shaykhutdinova ER, Dyachenko IA, Egorova NS, Murashev AN, Tsetlin VI, Utkin YN. Erratum to: Synthetic Peptide Fragments of the Wtx Toxin Reduce Blood Pressure in Rats under General Anesthesia. DOKL BIOCHEM BIOPHYS 2023; 513:355. [PMID: 38267779 PMCID: PMC10808160 DOI: 10.1134/s1607672923050095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 11/16/2023] [Accepted: 11/16/2023] [Indexed: 01/26/2024]
Abstract
An Erratum to this paper has been published: https://doi.org/10.1134/S1607672923050095
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Affiliation(s)
- M S Severyukhina
- Branch of Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Pushchino, Russia
- Pushchino State Natural-Science Institute, Pushchino, Russia
| | - A M Ismailova
- Branch of Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Pushchino, Russia
| | - E R Shaykhutdinova
- Branch of Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Pushchino, Russia
| | - I A Dyachenko
- Branch of Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Pushchino, Russia
| | - N S Egorova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - A N Murashev
- Branch of Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Pushchino, Russia
| | - V I Tsetlin
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - Yu N Utkin
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia.
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Dyachenko IA, Palikova YA, Palikov VA, Korolkova YV, Kazakov VA, Egorova NS, Garifulina AI, Utkin YN, Tsetlin VI, Kryukova EV. α-Conotoxin RgIA and oligoarginine R8 in the mice model alleviate long-term oxaliplatin induced neuropathy. Biochimie 2021; 194:127-136. [PMID: 34979156 DOI: 10.1016/j.biochi.2021.12.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 12/27/2021] [Accepted: 12/28/2021] [Indexed: 12/28/2022]
Abstract
Оligoarginines were recently discovered (Lebedev et al., 2019 Nov) [1] as a novel class of nicotinic acetylcholine receptors (nAChRs) inhibitors, octaoligoarginine R8 showing a relatively high affinity (40 nM) for the α9/α10 nAChR. Since the inhibition of α9/α10 nAChR by α-conotoxin RgIA and its analogs is a possible way to drugs against neuropathic pain, here in a mice model we compared R8 with α-conotoxin RgIA in the effects on the chemotherapy-induced peripheral neuropathy (CIPN), namely on the long-term oxaliplatin induced neuropathy. Tests of cold allodynia, hot plate, Von Frey and grip strength analysis revealed for R8 and α-conotoxin RgIA similar positive effects, expressed most prominently after two weeks of administration. Histological analysis of the dorsal root ganglia sections showed for R8 and RgIA a similar partial correction of changes in the nuclear morphology of neurons. Since α9/α10 nAChR might be not the only drug target for R8, we analyzed the R8 action on rat TRPV1 and TRPA1, well-known nociceptive receptors. Against rTRPV1 at 25 μM there was no inhibition, while for rTRPA1 IC50 was about 20 μM. Thus, involvement of rTRPA1 cannot be excluded, but in view of the R8 much higher affinity for α9/α10 nAChR the latter seems to be the main target and the easily synthesized R8 can be considered as a potential candidate for a drug design.
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Affiliation(s)
- I A Dyachenko
- Branch of the Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 6 Nauki Avenue, 142290, Pushchino, Moscow, Russia.
| | - Yu A Palikova
- Branch of the Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 6 Nauki Avenue, 142290, Pushchino, Moscow, Russia.
| | - V A Palikov
- Branch of the Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 6 Nauki Avenue, 142290, Pushchino, Moscow, Russia.
| | - Y V Korolkova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, ul. Miklukho-Maklaya 16/10, 117997, Moscow, Russia.
| | - V A Kazakov
- Branch of the Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 6 Nauki Avenue, 142290, Pushchino, Moscow, Russia.
| | - N S Egorova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, ul. Miklukho-Maklaya 16/10, 117997, Moscow, Russia.
| | - A I Garifulina
- Division of Pharmacology and Toxicology, Department of Pharmaceutical Sciences, University of Vienna, A-1090, Vienna, Austria.
| | - Y N Utkin
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, ul. Miklukho-Maklaya 16/10, 117997, Moscow, Russia.
| | - V I Tsetlin
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, ul. Miklukho-Maklaya 16/10, 117997, Moscow, Russia.
| | - E V Kryukova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, ul. Miklukho-Maklaya 16/10, 117997, Moscow, Russia.
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5
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Nguyen TD, Nguyen TN, Nguyen KC, Tran QN, Hoang AN, Egorova NS, Starkov VG, Tsetlin VI, Utkin YN. Encapsulation of Neurotoxins, Blockers of Nicotinic Acetylcholine Receptors, in Nanomaterials Based on Sulfated Polysaccharides. DOKL BIOCHEM BIOPHYS 2019; 487:251-255. [PMID: 31559591 DOI: 10.1134/s1607672919040021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Indexed: 11/22/2022]
Abstract
Three-finger snake neurotoxins are selective antagonists of some nicotinic acetylcholine receptor subtypes and are widely used to study these receptors. The peptide neurotoxin azemiopsin, recently isolated from the venom of Azemipos feae, is a selective blocker of muscle-type nicotinic acetylcholine receptor. In order to reduce their toxicity and increase resistance under physiological conditions, we have encapsulated these toxins into nanomaterials. The study of nanomaterials after interaction with neurotoxins by the methods of transmission electron microscopy and dynamic light scattering revealed an increase in the size of nanoparticles, which indicates the inclusion of neurotoxins in nanomaterials.
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Affiliation(s)
- Tr D Nguyen
- Institute of Applied Materials Science, Vietnam Academy of Science and Technology, Ho Chi Minh City, Vietnam.,Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Ho Chi Minh City, Vietnam
| | - T N Nguyen
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Ho Chi Minh City, Vietnam.,Tra Vinh University, Tra Vinh City, Vietnam
| | - K C Nguyen
- Institute of Applied Materials Science, Vietnam Academy of Science and Technology, Ho Chi Minh City, Vietnam.,Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Ho Chi Minh City, Vietnam
| | - Q N Tran
- Institute of Applied Materials Science, Vietnam Academy of Science and Technology, Ho Chi Minh City, Vietnam.,Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Ho Chi Minh City, Vietnam
| | - A N Hoang
- Institute of Applied Materials Science, Vietnam Academy of Science and Technology, Ho Chi Minh City, Vietnam.,Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Ho Chi Minh City, Vietnam
| | - N S Egorova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997, Moscow, Russia
| | - V G Starkov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997, Moscow, Russia
| | - V I Tsetlin
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997, Moscow, Russia
| | - Yu N Utkin
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997, Moscow, Russia.
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6
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Kasheverov IE, Oparin PB, Zhmak MN, Egorova NS, Ivanov IA, Gigolaev AM, Nekrasova OV, Serebryakova MV, Kudryavtsev DS, Prokopev NA, Hoang AN, Tsetlin VI, Vassilevski AA, Utkin YN. Scorpion toxins interact with nicotinic acetylcholine receptors. FEBS Lett 2019; 593:2779-2789. [PMID: 31276191 DOI: 10.1002/1873-3468.13530] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 06/30/2019] [Accepted: 07/01/2019] [Indexed: 12/20/2022]
Abstract
Neurotoxins are among the main components of scorpion and snake venoms. Scorpion neurotoxins affect voltage-gated ion channels, while most snake neurotoxins target ligand-gated ion channels, mainly nicotinic acetylcholine receptors (nAChRs). We report that scorpion venoms inhibit α-bungarotoxin binding to both muscle-type nAChR from Torpedo californica and neuronal human α7 nAChR. Toxins inhibiting nAChRs were identified as OSK-1 (α-KTx family) from Orthochirus scrobiculosus and HelaTx1 (κ-KTx family) from Heterometrus laoticus, both being blockers of voltage-gated potassium channels. With an IC50 of 1.6 μm, OSK1 inhibits acetylcholine-induced current through mouse muscle-type nAChR heterologously expressed in Xenopus oocytes. Other well-characterized scorpion toxins from these families also bind to Torpedo nAChR with micromolar affinities. Our results indicate that scorpion neurotoxins present target promiscuity.
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Affiliation(s)
- Igor E Kasheverov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia.,Institute of Molecular Medicine, Sechenov First Moscow State Medical University, Moscow, Russia
| | - Peter B Oparin
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - Maxim N Zhmak
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - Natalya S Egorova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - Igor A Ivanov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - Andrei M Gigolaev
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - Oksana V Nekrasova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - Marina V Serebryakova
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Russia
| | - Denis S Kudryavtsev
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - Nikita A Prokopev
- Department of Bioorganic Chemistry, Faculty of Biology, Lomonosov Moscow State University, Russia
| | - Anh N Hoang
- Institute of Applied Materials Science, Vietnam Academy of Science and Technology, Ho Chi Minh City, Vietnam
| | - Victor I Tsetlin
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - Alexander A Vassilevski
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia.,Moscow Institute of Physics and Technology (State University), Dolgoprudny, Moscow Oblast, Russia
| | - Yuri N Utkin
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
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7
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Kryukova EV, Ivanov IA, Lebedev DS, Spirova EN, Senko DA, Egorova NS, Kasheverov IE, Tsetlin VI. Polyarginine Peptides As a New Class of Ligands of Nicotinic Acetylcholine Receptors. DOKL BIOCHEM BIOPHYS 2019; 483:313-315. [PMID: 30607728 DOI: 10.1134/s1607672918060017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Indexed: 11/23/2022]
Abstract
Arginine-containing peptides R3, R8, and R16 were obtained by solid-phase peptide synthesis, and their binding to nicotinic acetylcholine receptors (nAChRs) of muscle and neuronal (α7) types was studied by competitive radioligand assay with the use of 125I-α-bungarotoxin. The resulting peptides exhibited a significantly greater binding activity with respect to the muscle-type nAChRs than to the α7 receptor. Thus, we have discovered a new class of nAChR ligands. The affinity of the synthesized oligoarginines for nAChR depended on the number of amino acid residues in the chain. The highest affinity was exhibited by the R16 peptide, which contained 16 arginine residues.
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Affiliation(s)
- E V Kryukova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, 117997, Russia.
| | - I A Ivanov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, 117997, Russia
| | - D S Lebedev
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, 117997, Russia
| | - E N Spirova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, 117997, Russia
| | - D A Senko
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, 117997, Russia
| | - N S Egorova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, 117997, Russia
| | - I E Kasheverov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, 117997, Russia.,Sechenov First Moscow State Medical University, Ministry of Healthcare of the Russian Federation, Moscow, 119992, Russia
| | - V I Tsetlin
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, 117997, Russia
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8
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Shelukhina IV, Zhmak MN, Lobanov AV, Ivanov IA, Garifulina AI, Kravchenko IN, Rasskazova EA, Salmova MA, Tukhovskaya EA, Rykov VA, Slashcheva GA, Egorova NS, Muzyka IS, Tsetlin VI, Utkin YN. Azemiopsin, a Selective Peptide Antagonist of Muscle Nicotinic Acetylcholine Receptor: Preclinical Evaluation as a Local Muscle Relaxant. Toxins (Basel) 2018; 10:E34. [PMID: 29316656 PMCID: PMC5793121 DOI: 10.3390/toxins10010034] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Revised: 12/31/2017] [Accepted: 01/02/2018] [Indexed: 12/19/2022] Open
Abstract
Azemiopsin (Az), a linear peptide from the Azemiops feae viper venom, contains no disulfide bonds, is a high-affinity and selective inhibitor of nicotinic acetylcholine receptor (nAChR) of muscle type and may be considered as potentially applicable nondepolarizing muscle relaxant. In this study, we investigated its preclinical profile in regard to in vitro and in vivo efficacy, acute and chronic toxicity, pharmacokinetics, allergenic capacity, immunotoxicity and mutagenic potency. The peptide effectively inhibited (IC50 ~ 19 nM) calcium response of muscle nAChR evoked by 30 μM (EC100) acetylcholine but was less potent (IC50 ~ 3 μM) at α7 nAChR activated by 10 μM (EC50) acetylcholine and had a low affinity to α4β2 and α3-containing nAChR, as well as to GABAA or 5HT₃ receptors. Its muscle relaxant effect was demonstrated at intramuscular injection to mice at doses of 30-300 µg/kg, 30 µg/kg being the initial effective dose and 90 µg/kg-the average effective dose. The maximal muscle relaxant effect of Az was achieved in 10 min after the administration and elimination half-life of Az in mice was calculated as 20-40 min. The longest period of Az action observed at a dose of 300 µg/kg was 55 min. The highest acute toxicity (LD50 510 μg/kg) was observed at intravenous injection of Az, at intramuscular or intraperitoneal administration it was less toxic. The peptide showed practically no immunotoxic, allergenic or mutagenic capacity. Overall, the results demonstrate that Az has good drug-like properties for the application as local muscle relaxant and in its parameters, is not inferior to the relaxants currently used. However, some Az modification might be effective to extend its narrow therapeutic window, a typical characteristic and a weak point of all nondepolarizing myorelaxants.
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Affiliation(s)
- Irina V. Shelukhina
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, ul. Miklukho-Maklaya 16/10, Moscow 117997, Russia; (I.V.S.); (M.N.Z.); (I.A.I.); (A.I.G.); (N.S.E.); (I.S.M.); (V.I.T.)
| | - Maxim N. Zhmak
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, ul. Miklukho-Maklaya 16/10, Moscow 117997, Russia; (I.V.S.); (M.N.Z.); (I.A.I.); (A.I.G.); (N.S.E.); (I.S.M.); (V.I.T.)
| | - Alexander V. Lobanov
- Branch of the Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Pushchino 142290, Moscow Region, Russia; (A.V.L); (I.N.K.); (E.A.R.); (M.A.S.); (E.A.T.); (V.A.R.); (G.A.S.)
| | - Igor A. Ivanov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, ul. Miklukho-Maklaya 16/10, Moscow 117997, Russia; (I.V.S.); (M.N.Z.); (I.A.I.); (A.I.G.); (N.S.E.); (I.S.M.); (V.I.T.)
| | - Alexandra I. Garifulina
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, ul. Miklukho-Maklaya 16/10, Moscow 117997, Russia; (I.V.S.); (M.N.Z.); (I.A.I.); (A.I.G.); (N.S.E.); (I.S.M.); (V.I.T.)
| | - Irina N. Kravchenko
- Branch of the Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Pushchino 142290, Moscow Region, Russia; (A.V.L); (I.N.K.); (E.A.R.); (M.A.S.); (E.A.T.); (V.A.R.); (G.A.S.)
| | - Ekaterina A. Rasskazova
- Branch of the Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Pushchino 142290, Moscow Region, Russia; (A.V.L); (I.N.K.); (E.A.R.); (M.A.S.); (E.A.T.); (V.A.R.); (G.A.S.)
| | - Margarita A. Salmova
- Branch of the Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Pushchino 142290, Moscow Region, Russia; (A.V.L); (I.N.K.); (E.A.R.); (M.A.S.); (E.A.T.); (V.A.R.); (G.A.S.)
| | - Elena A. Tukhovskaya
- Branch of the Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Pushchino 142290, Moscow Region, Russia; (A.V.L); (I.N.K.); (E.A.R.); (M.A.S.); (E.A.T.); (V.A.R.); (G.A.S.)
| | - Vladimir A. Rykov
- Branch of the Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Pushchino 142290, Moscow Region, Russia; (A.V.L); (I.N.K.); (E.A.R.); (M.A.S.); (E.A.T.); (V.A.R.); (G.A.S.)
| | - Gulsara A. Slashcheva
- Branch of the Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Pushchino 142290, Moscow Region, Russia; (A.V.L); (I.N.K.); (E.A.R.); (M.A.S.); (E.A.T.); (V.A.R.); (G.A.S.)
| | - Natalya S. Egorova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, ul. Miklukho-Maklaya 16/10, Moscow 117997, Russia; (I.V.S.); (M.N.Z.); (I.A.I.); (A.I.G.); (N.S.E.); (I.S.M.); (V.I.T.)
| | - Inessa S. Muzyka
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, ul. Miklukho-Maklaya 16/10, Moscow 117997, Russia; (I.V.S.); (M.N.Z.); (I.A.I.); (A.I.G.); (N.S.E.); (I.S.M.); (V.I.T.)
| | - Victor I. Tsetlin
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, ul. Miklukho-Maklaya 16/10, Moscow 117997, Russia; (I.V.S.); (M.N.Z.); (I.A.I.); (A.I.G.); (N.S.E.); (I.S.M.); (V.I.T.)
| | - Yuri N. Utkin
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, ul. Miklukho-Maklaya 16/10, Moscow 117997, Russia; (I.V.S.); (M.N.Z.); (I.A.I.); (A.I.G.); (N.S.E.); (I.S.M.); (V.I.T.)
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9
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Chentsova EV, Konyushko OI, Makarov MS, Egorova NS, Zinov'ev MY, Borovkova NV. Optimization of the Method of Buccal Epithelial Cell Isolation and Culturing on Collagen Substrate for Ophthalmologic Application. Bull Exp Biol Med 2015; 159:168-72. [PMID: 26033610 DOI: 10.1007/s10517-015-2915-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2014] [Indexed: 11/27/2022]
Abstract
We performed morphofunctional analysis of cultured rabbit buccal epithelial cells in the primary culture, during passaging, and upon interaction with collagen substrates. Three different morphological types were identified. It was demonstrated that precursors of rabbit buccal epithelium were characterized by high proliferative activity, retain their biological properties throughout long-term culturing, and adhere to various collagen substrates.
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Affiliation(s)
- E V Chentsova
- Helmholtz Moscow Research Institute of Eye Diseases, Ministry of Health of the Russian Federation, Moscow, Russia
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10
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Cherkasova VG, Zimushkina NA, Krivoshchekova OF, Egorova NS. [Neurological service to patients with cognitive impairment in the Perm region]. Zh Nevrol Psikhiatr Im S S Korsakova 2012; 112:65-66. [PMID: 23250614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
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11
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Rokitskaya TI, Sorochkina AI, Kovalchuk SI, Egorova NS, Kotova EA, Sychev SV, Antonenko YN. The pH-dependent induction of lipid membrane ionic permeability by N-terminally lysine-substituted analogs of gramicidin A. Eur Biophys J 2011; 41:129-38. [DOI: 10.1007/s00249-011-0764-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2011] [Revised: 09/30/2011] [Accepted: 10/11/2011] [Indexed: 11/29/2022]
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12
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Dubovskii PV, Vassilevski AA, Samsonova OV, Egorova NS, Kozlov SA, Feofanov AV, Arseniev AS, Grishin EV. Novel lynx spider toxin shares common molecular architecture with defense peptides from frog skin. FEBS J 2011; 278:4382-93. [PMID: 21933345 DOI: 10.1111/j.1742-4658.2011.08361.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A unique 30-residue cationic peptide oxyopinin 4a (Oxt 4a) was identified in the venom of the lynx spider Oxyopes takobius (Oxyopidae). Oxt 4a contains a single N-terminally located disulfide bond, Cys4-Cys10, and is structurally different from any spider toxin studied so far. According to NMR findings, the peptide is disordered in water, but assumes a peculiar torpedo-like structure in detergent micelles. It features a C-terminal amphipathic α-helical segment (body; residues 12-25) and an N-terminal disulfide-stabilized loop (head; residues 1-11), and has an unusually high density of positive charge in the head region. Synthetic Oxt 4a was produced and shown to possess strong and broad-spectrum cytolytic and antimicrobial activity. cDNA cloning showed that the peptide is synthesized in the form of a conventional prepropeptide with an acidic prosequence. Unlike other arachnid toxins, Oxt 4a exhibits striking similarity with defense peptides from the skin of ranid frogs that contain the so-called Rana-box motif (a C-terminal disulfide-enclosed loop). Parallelism or convergence is apparent on several levels: the structure, function and biosynthesis of a lynx spider toxin are mirrored by those of Rana-box peptides from frogs.
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Affiliation(s)
- Peter V Dubovskii
- M M Shemyakin and Yu A Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia.
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13
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Rokitskaya TI, Macrae MX, Blake S, Egorova NS, Kotova EA, Yang J, Antonenko YN. Mechanistic insight into gramicidin-based detection of protein-ligand interactions via sensitized photoinactivation. J Phys Condens Matter 2010; 22:454118. [PMID: 21339605 DOI: 10.1088/0953-8984/22/45/454118] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Among the many challenges for the development of ion channel-based sensors is the poor understanding of how to engineer modified transmembrane pores with tailored functionality that can respond to external stimuli. Here, we use the method of sensitized photoinactivation of gramicidin A (gA) channels in planar bilayer lipid membranes to help elucidate the underlying mechanistic details for changes in macroscopic transmembrane ionic current observed upon interaction of C-terminally attached gA ligands with specific proteins in solution. Three different systems were studied: (i) carbonic anhydrase (CA) and gA-sulfonamide, (ii) PSD-95 protein (belonging to the 'PDZ domain-containing protein') and a gA analog carrying the KGGHRRSARYLESSV peptide sequence at the C-terminus, and (iii) an anti-biotin antibody and gA-biotin. The results challenge a previously proposed mechanistic hypothesis suggesting that protein-induced current suppression is due to steric blockage of the ion passage through gA channels, while they reveal new insight for consideration in alternative mechanistic models. Additionally, we demonstrate that the length of a linker between the ligand and the gA channel may be less important for gramicidin-based detection of monovalent compared to multivalent protein-ligand interactions. These studies collectively shed new light on the mechanism of protein-induced current alterations in bilayer recordings of gA derivatives, which may be important in the design of new gramicidin-based sensors.
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Affiliation(s)
- Tatyana I Rokitskaya
- Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow 119991, Russia
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14
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Abstract
Activity and action mechanisms of latarcin 2a (Ltc2a), an antimicrobial peptide from the venom of the spider Lachesana tarabaevi (Zodariidae), were studied in vitro on human cells. Cytotoxicity of Ltc2a for erythrocytes (EC(50) = 3.4 μM), leukocytes (EC(50) = 19.5 μM) and erythroleukemia K562 cells (EC(50) = 3.3 μM) has been found to be primary related to plasma membrane destabilization. Using fluorescently labeled Ltc2a, three common features are found for erythrocytes and K562 cells: pronounced inhomogeneity of cellular response to Ltc2a; complex multistage character of Ltc2a-cell interactions; a positive feedback between Ltc2a binding to plasma membrane and development of toxic effects. Discocyte - echinocyte - spherocyte - ghost is a sequence of Ltc2a-induced transformations of erythrocytes that are accompanied by multistage enhancement of Ltc2a membrane binding, formation of small (ca. 2.0 nm) membrane pores, osmotic imbalance development and reorganization of the pores into large (ca. 13 nm) membrane openings that are preserved in ghosts. Ltc2a induces membrane blebbing and swelling of K562 cells followed by cell death. Cytotoxic action occurs through formation of membrane pores (ca. 3.7 nm) which show greater permeability for anionic than cationic molecules. The pore formation is accompanied with self-assisted Ltc2a internalization and accumulation in mitochondria, mitochondrion inactivation and apoptosis-independent phosphatidylserine externalization.
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Affiliation(s)
- Olga V Vorontsova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, ul. Miklukho-Maklaya 16/10, 117997, Moscow, Russia
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15
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Polyansky AA, Vassilevski AA, Volynsky PE, Vorontsova OV, Samsonova OV, Egorova NS, Krylov NA, Feofanov AV, Arseniev AS, Grishin EV, Efremov RG. N-terminal amphipathic helix as a trigger of hemolytic activity in antimicrobial peptides: A case study in latarcins. FEBS Lett 2009; 583:2425-8. [DOI: 10.1016/j.febslet.2009.06.044] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2009] [Revised: 05/27/2009] [Accepted: 06/24/2009] [Indexed: 01/29/2023]
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16
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Stoilova TB, Kovalchuk SI, Egorova NS, Surovoy AY, Ivanov VT. Gramicidin A-based peptide vector for intracellular protein delivery. Biochim Biophys Acta 2008; 1778:2026-31. [PMID: 18339303 DOI: 10.1016/j.bbamem.2008.01.029] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2007] [Revised: 01/14/2008] [Accepted: 01/25/2008] [Indexed: 11/29/2022]
Abstract
The development of the peptide-based vectors for the intracellular delivery of biologically active macromolecules has opened new prospects of their application in research and therapy. Earlier the amphipathic cell-penetrating peptide (CPP) Pep-1 was reported to mediate cellular uptake of proteins without covalent binding to them. In this work we studied the ability of a series of membrane-active amphipathic peptides, based on the gramicidin A sequence, to transport a model protein across the eukaryotic cell membrane. Among them the positively charged Cys-containing peptide P10C demonstrated the most effective beta-galactosidase intracellular delivery. Besides, this peptide was shown to form noncovalent associates with beta-galactosidase as judged from electrophoresis and enzymatic activity assays. In addition, a series of new gramicidin analogues were prepared and the effect of N-terminus modification of gramicidin on the protein transduction efficiency was studied.
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Affiliation(s)
- Tatiana B Stoilova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry Russian Academy of Sciences, Miklukho-Maklaya, 16/10, 117997 Moscow, Russia.
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17
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Antonenko YN, Stoilova TB, Kovalchuk SI, Egorova NS, Pashkovskaya AA, Sobko AA, Kotova EA, Surovoy AY. Redox-regulated ion channel activity of a cysteine-containing gramicidin A analogue. Biochimica et Biophysica Acta (BBA) - Biomembranes 2006; 1758:493-8. [PMID: 16624254 DOI: 10.1016/j.bbamem.2006.02.028] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2005] [Revised: 01/16/2006] [Accepted: 02/20/2006] [Indexed: 11/29/2022]
Abstract
According to recent data, gramicidin A analogues having positively charged amino acid sequences at the C-termini exhibit two types of channel activity in lipid membranes: classical cation-selective channels and large unselective pores. The induction of unselective pores was shown here to strongly depend on the redox state of the membrane-bathing solution, if the gramicidin analogue contained a cysteine residue in the sequence GSGPKKKRKVC attached to the C-terminus. In particular, the addition of H2O2 led to an increase in the transmembrane current and the loss of cationic selectivity on planar bilayer lipid membranes and an increase in the carboxyfluorescein leakage of liposomes. The effect was observed at high concentration of the peptide while was absent at the single-channel level. It was concluded that oxidation led to possible formation of dimers of the peptide, which promoted the formation of large unselective pores.
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Affiliation(s)
- Yuri N Antonenko
- Belozersky Institute of Physico-Chemical Biology, Moscow State University, 119992 Moscow, Russia.
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18
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Antonenko YN, Stoilova TB, Kovalchuk SI, Egorova NS, Pashkovskaya AA, Sobko AA, Kotova EA, Sychev SV, Surovoy AY. Large unselective pore in lipid bilayer membrane formed by positively charged peptides containing a sequence of gramicidin A. FEBS Lett 2005; 579:5247-52. [PMID: 16165129 DOI: 10.1016/j.febslet.2005.08.049] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2005] [Revised: 08/04/2005] [Accepted: 08/06/2005] [Indexed: 11/27/2022]
Abstract
Ion-channel activity of a series of gramicidin A analogues carrying charged amino-acid sequences on the C-terminus of the peptide was studied on planar bilayer lipid membranes and liposomes. It was found that the analogue with the positively charged sequence GSGRRRRSQS forms classical cationic pores at low concentrations and large unselective pores at high concentrations. The peptide was predominantly in the right-handed beta(6.3)-helical conformation in liposomes as shown by circular dichroism spectroscopy. The single-channel conductance of the large pore was estimated to be 320pS in 100mM choline chloride as judged from the fluctuation analysis of the multi-channel current. The analogue with the negatively charged sequence GSGEEEESQS exhibited solely classical cationic channel activity. The ability of a peptide to form different type of channels can be used in the search for broad-spectrum antibiotics.
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Affiliation(s)
- Yuri N Antonenko
- Belozersky Institute of Physico-Chemical Biology, Moscow State University, 119992 Moscow, Russia.
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19
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Pashkov VS, Agapov II, Balashova TA, Egorova NS, Surovoĭ AI, Pevzner IB, Tonevitskiĭ AG. An Epitope of the Viscumin Catalytic Subunit Exposed on Its Interaction with Lipid Bilayer. Russian Journal of Bioorganic Chemistry 2003; 29:589-96. [PMID: 14743532 DOI: 10.1023/b:rubi.0000008893.51027.4c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
It was previously shown that the catalytic subunit of the plant toxin viscumin induces aggregation of small unilamellar liposomes and this process is inhibited by the mab_TA7 monoclonal antibody produced to the denatured catalytic subunit of viscumin (Agapov, I.I. et al., FEBS Lett., 1999, vol. 464, pp. 63-66). The interaction of the synthetic F101-T105 and A96-T105 fragments of the viscumin catalytic subunit with the mab_TA7 monoclonal antibody was studied by 1H NMR spectroscopy. The results of this study demonstrated that only the A96-T105 fragment is capable of binding to mab_TA7. A nuclear Overhauser effect observed in the antigen-antibody complex and registered on the resonances of the free peptide and exchanging between the free state and the antibody-bound state was analyzed; the mab_TA7 antigen determinant (H99-T105) was identified; and its conformation and orientation within the complex with the antibody were determined. The English version of the paper: Russian Journal of Bioorganic Chemistry, 2003, vol. 29, no. 6; see also http://www.maik.ru.
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Affiliation(s)
- V S Pashkov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, ul. Miklukho-Maklaya 16/10, GSP Moscow, 117997 Russia.
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20
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Sazonova OV, Blishchenko EY, Kalinina OA, Egorova NS, Surovoy AY, Philippova MM, Karelin AA, Ivanov VT. Proliferative Activity Of Neokyotorphinrelated Hemoglobin Fragments In Cell Cultures. Protein Pept Lett 2003; 10:386-95. [PMID: 14529492 DOI: 10.2174/0929866033478780] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
alpha-Hemoglobin fragments alpha-(133-141), alpha-(134-141), alpha-(135-141), alpha-(137-141), alpha-(134-140), alpha-(133-138), alpha-(134-140) and alpha-(137-138) stimulate L929 tumor cell proliferation, alpha-(134-141) being the most active. alpha-(134-141) stimulates proliferation of M3 melanoma cells, murine embryonic fibroblasts, primary cultures of red bone marrow and spleen cells. In L929 cells the effect of alpha-(134-141) is cell density independent; in M3 cells alpha-(137-141) and alpha-(134-141) are most active at density 10,000 cells/well (96 well plate) independently on FBS content.
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Affiliation(s)
- Olga V Sazonova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry Russian Academy of Sciences, Miklukho-Maklaya, 16/10, 117871 Moscow, Russia.
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21
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Blishchenko EY, Kalinina OA, Sazonova OV, Khaidukov SV, Egorova NS, Surovoy AY, Philippova MM, Vass AA, Karelin AA, Ivanov VT. Endogenous fragment of hemoglobin, neokyotorphin, as cell growth factor. Peptides 2001; 22:1999-2008. [PMID: 11786183 DOI: 10.1016/s0196-9781(01)00565-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
It is shown that neokyotorphin (the alpha-globin fragment 137-141) stimulates proliferation of normal cells (murine embryonic fibroblasts, red bone marrow and spleen cells) and tumor cells (murine melanoma and transformed fibroblasts L929) in the absence or in the presence of fetal bovine serum. In contrast to serum deprivation conditions, the ability to potentiate L929 cell growth in the presence of fetal serum is strongly cell density dependent. The peptide also enhances the viability of L929 cells, murine embryonic fibroblasts and of the primary cultures of murine red bone marrow cells and splenocytes under serum-deprivation conditions for at least 72 h. The results of flow cytometry analysis suggest that the effect of neokyotorphin on survival of L929 cells in serum-free culture medium is due to maintenance of cell proliferation in the absence of growth factors. Along with cell cycle progression the peptide induces reversible reduction of L929 cell size.
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Affiliation(s)
- E Y Blishchenko
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry Russian Academy of Sciences, ul. Miklukho-Maklaya, 16/10, 117871, GSP-7, Moscow, Russia.
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22
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Chistiakova IV, Efimov EE, Borovkova ML, Egorova NS, Novitskiĭ VI. [Interaction of influenza virus, staphylococci, and staphylococcal bacteriophages in developing chick embryos]. Zh Mikrobiol Epidemiol Immunobiol 1980:68-72. [PMID: 6449809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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23
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Kovalevskiĭ EI, Egorova NS, Kholodovskaia IV. [Conjunctivitis in newborn children]. Pediatriia 1972; 51:48-9. [PMID: 4668243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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24
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Ritova VV, Schastnyĭ EI, Krasikova VA, Egorova NS, Filippova LN. [Epidemiology of adenovirus infections in newborn infants]. Vopr Okhr Materin Det 1969; 14:83. [PMID: 4314987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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25
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Egorova NS, Timonin VM. [A punched-card system of collecting and processing statistical and scientific information on newborn infants]. Pediatriia 1969; 48:58-64. [PMID: 5393477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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26
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Shtern IA, Egorova NS, Zakharova ES, Chulkova VI. [Experience with the introduction of effective measures for reducing the mortality associated with hemolytic disease]. Pediatriia 1967; 46:41-3. [PMID: 5629552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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27
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Ritova VV, Oganesian OT, Egorova NS, Gilippova LN. [Virologic study of the significance of respiratory virus infections of the mother in fetal and newborn pathology]. Vopr Virusol 1966; 11:680-4. [PMID: 6002939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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28
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Ritova VV, Zlatkovskaia NM, Egorova NS. [On the pathogenesis of respiratory and enteral virus infections in the newborn and in children in the 1st years of life]. Klin Med (Mosk) 1966; 44:100-5. [PMID: 5995805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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