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Shin MK, Hwang IW, Jang BY, Bu KB, Yoo JS, Sung JS. In silico identification of novel antimicrobial peptides from the venom gland transcriptome of the spider Argiope bruennichi (Scopoli, 1772). Front Microbiol 2023; 14:1249175. [PMID: 37577428 PMCID: PMC10416796 DOI: 10.3389/fmicb.2023.1249175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 07/17/2023] [Indexed: 08/15/2023] Open
Abstract
As the emergence and prevalence of antibiotic-resistant strains have resulted in a global crisis, there is an urgent need for new antimicrobial agents. Antimicrobial peptides (AMPs) exhibit inhibitory activity against a wide spectrum of pathogens and can be utilized as an alternative to conventional antibiotics. In this study, two novel AMPs were identified from the venom transcriptome of the spider Argiope bruennichi (Scopoli, 1772) using in silico methods, and their antimicrobial activity was experimentally validated. Aranetoxin-Ab2a (AATX-Ab2a) and Aranetoxin-Ab3a (AATX-Ab3a) were identified by homology analysis and were predicted to have high levels of antimicrobial activity based on in silico analysis. Both peptides were found to have antibacterial effect against Gram-positive and -negative strains, and, in particular, showed significant inhibitory activity against multidrug-resistant Pseudomonas aeruginosa isolates. In addition, AATX-Ab2a and AATX-Ab3a inhibited animal and vegetable fungal strains, while showing low toxicity to normal human cells. The antimicrobial activity of the peptides was attributed to the increased permeability of microbial membranes. The study described the discovery of novel antibiotic candidates, AATX-Ab2a and AATX-Ab3a, using the spider venom gland transcriptome, and validated an in silico-based method for identifying functional substances from biological resources.
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Affiliation(s)
- Min Kyoung Shin
- Department of Life Science, Dongguk University-Seoul, Goyang, Republic of Korea
| | - In-Wook Hwang
- Department of Life Science, Dongguk University-Seoul, Goyang, Republic of Korea
| | - Bo-Young Jang
- Department of Life Science, Dongguk University-Seoul, Goyang, Republic of Korea
| | - Kyung-Bin Bu
- Department of Life Science, Dongguk University-Seoul, Goyang, Republic of Korea
| | - Jung Sun Yoo
- Species Diversity Research Division, National Institute of Biological Resources, Incheon, Republic of Korea
| | - Jung-Suk Sung
- Department of Life Science, Dongguk University-Seoul, Goyang, Republic of Korea
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Tan CH, Liew JL, Navanesan S, Sim KS, Tan NH, Tan KY. Cytotoxic and anticancer properties of the Malaysian mangrove pit viper ( Trimeresurus purpureomaculatus) venom and its disintegrin (purpureomaculin). J Venom Anim Toxins Incl Trop Dis 2020; 26:e20200013. [PMID: 32742279 PMCID: PMC7375409 DOI: 10.1590/1678-9199-jvatitd-2020-0013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Accepted: 05/29/2020] [Indexed: 11/22/2022] Open
Abstract
Background The Asiatic pit vipers from the Trimeresurus complex are medically important venomous snakes. These pit vipers are often associated with snakebite that leads to fatal coagulopathy and tissue necrosis. The cytotoxic venoms of Trimeresurus spp.; however, hold great potential for the development of peptide-based anticancer drugs. Methods This study investigated the cytotoxic effect of the venom from Trimeresurus purpureomaculatus, the mangrove pit viper (also known as shore pit viper) which is native in Malaysia, across a panel of human cancer cell lines from breast, lung, colon and prostate as well as the corresponding normal cell lines of each tissue. Results The venom exhibited dose-dependent cytotoxic activities on all cell lines tested, with median inhibition concentrations (IC50) ranging from 0.42 to 6.98 µg/mL. The venom has a high selectivity index (SI = 14.54) on breast cancer cell line (MCF7), indicating that it is significantly more cytotoxic toward the cancer than to normal cell lines. Furthermore, the venom was fractionated using C18 reversed-phase high-performance liquid chromatography and the anticancer effect of each protein fraction was examined. Fraction 1 that contains a hydrophilic low molecular weight (approximately 7.5 kDa) protein was found to be the most cytotoxic and selective toward the breast cancer cell line (MCF7). The protein was identified using liquid chromatography-tandem mass spectrometry as a venom disintegrin, termed purpureomaculin in this study. Conclusion Taken together, the findings revealed the potent and selective cytotoxicity of a disintegrin protein isolated from the Malaysian T. purpureomaculatus venom and suggested its anticancer potential in drug discovery.
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Affiliation(s)
- Choo Hock Tan
- Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Jia Lee Liew
- Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Suerialoasan Navanesan
- Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
| | - Kae Shin Sim
- Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
| | - Nget Hong Tan
- Department of Molecular Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Kae Yi Tan
- Department of Molecular Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
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Yanqing C, Bo W, Ping W, Bisheng H, Hegang L, Chao X, Mingli W, Nili W, Di L, Zhigang H, Shilin C. Rapid identification of common medicinal snakes and their adulterants using the Bar-HRM analysis method. Mitochondrial DNA A DNA Mapp Seq Anal 2019; 30:367-374. [PMID: 30686100 DOI: 10.1080/24701394.2018.1532417] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Effective identification methods for snake species are lacking, exacerbating the extermination of medicinal and commercially valuable snake species. Hence, it is imperative to find fast and reliable methods to distinguish snake samples available on the market. Seventy-three samples from four families belonging to 13 genera were collected in China and found to contain common medicinal snakes and their adulterants. Cytochrome oxidase I (COI) was utilized as a DNA barcode to analyse these common snakes, and a DNA mini-barcode was employed for fast detection. Then, the DNA mini-barcode assays were coupled with a high-resolution melting (HRM) analysis (Bar-HRM) to realize the rapid discrimination of these snake species. The results showed the power of DNA barcoding with COI, which was capable of distinguishing all collected snake samples, and the combined Bar-HRM method can successfully identify the adulterants and different snake species. In particular, Bar-HRM revealed Bungarus fasciatus adulterants in B. multicinctus at concentrations as low as 1.6%. Moreover, the results of the study confirmed the effectiveness of the technique in terms of the rapid identification of snakes, which has great potential for ensuring the safety of commercially valuable snake species.
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Affiliation(s)
- Chen Yanqing
- a College of Pharmacy , Hubei University of Chinese Medicine , Wuhan , China
| | - Wang Bo
- b Hubei Institute for Drug Control , Wuhan , China
| | - Wang Ping
- a College of Pharmacy , Hubei University of Chinese Medicine , Wuhan , China
| | - Huang Bisheng
- a College of Pharmacy , Hubei University of Chinese Medicine , Wuhan , China
| | - Liu Hegang
- a College of Pharmacy , Hubei University of Chinese Medicine , Wuhan , China.,c Zhan Yahua National Famous Traditional Chinese Medicine Experts Inheritance Studio , Wuhan , China
| | - Xiong Chao
- a College of Pharmacy , Hubei University of Chinese Medicine , Wuhan , China
| | - Wu Mingli
- a College of Pharmacy , Hubei University of Chinese Medicine , Wuhan , China
| | - Wang Nili
- a College of Pharmacy , Hubei University of Chinese Medicine , Wuhan , China
| | - Liu Di
- a College of Pharmacy , Hubei University of Chinese Medicine , Wuhan , China.,c Zhan Yahua National Famous Traditional Chinese Medicine Experts Inheritance Studio , Wuhan , China
| | - Hu Zhigang
- a College of Pharmacy , Hubei University of Chinese Medicine , Wuhan , China.,c Zhan Yahua National Famous Traditional Chinese Medicine Experts Inheritance Studio , Wuhan , China
| | - Chen Shilin
- d Artemisinin Research Center, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences , Beijing , China
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Chen J, Liu XM, Zhang Y. Venom based neural modulators. Exp Ther Med 2018; 15:615-619. [PMID: 29399064 PMCID: PMC5772594 DOI: 10.3892/etm.2017.5483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Accepted: 09/12/2017] [Indexed: 11/06/2022] Open
Abstract
Different types of neuronal nicotinic acetylcholine receptors (nAChRs) are expected to occur in vivo, most structure-activity relationship studies have been carried out for just a few neuronal subtypes. The present review enlightens current aspects of venom modulators of nAChRs. Important electronic databases such as PubMed or Google scholar were explored for the collection of latest studies in the field. Clinical and basic research has shown that cholinergic receptors play a role in several disorders of the nervous system such as chronic pain, Alzheimers disease and addiction to nicotine, alcohol and drugs. Unfortunately, the lack of selective modulators for each subtype of nAChR makes their pharmacological characterization difficult, which has slowed the development of therapeutic nAChR modulators with high selectivity and absence of off-target side-effects. Animal venoms have proven to be an excellent natural source of bioactive molecules with activity against ion channels. The present review concludes that the presence of small-molecule nAChR modulators in spider venoms support the use of venoms as a potential source of novel modulators.
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Affiliation(s)
- Jiao Chen
- Department of Pediatric Internal Medicine, Xuzhou Children's Hospital, Xuzhou, Jiangsu 221002, P.R. China
| | - Xiao-Ming Liu
- Department of Pediatric Internal Medicine, Xuzhou Children's Hospital, Xuzhou, Jiangsu 221002, P.R. China
| | - Yuan Zhang
- Department of Pediatric Internal Medicine, Xuzhou Children's Hospital, Xuzhou, Jiangsu 221002, P.R. China
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Das D, Sharma M, Kumar Das H, Pratim Sahu P, Doley R. Purification and Characterization of Nk-3FTx: A Three Finger Toxin from the Venom of North East Indian Monocled Cobra. J Biochem Mol Toxicol 2015; 30:59-70. [PMID: 26293154 DOI: 10.1002/jbt.21734] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Revised: 07/13/2015] [Accepted: 07/22/2015] [Indexed: 12/21/2022]
Abstract
Snake venom three finger toxins (3FTxs) are a non-enzymatic family of venom proteins abundantly found in elapids. We have purified a 7579.5 ± 0.591 Da 3FTx named as Nk-3FTx from the venom of Naja kaouthia of North East India origin. The primary structure was determined by a combination of N-terminal sequencing and electrospray ionization liquid chromatography-mass spectrometry/mass spectrometry. Biochemical and biological characterization reveal that it is nontoxic to human cell lines and exhibit mild anticoagulant activity when tested on citrated human plasma. Nk-3FTx was found to affect the compound action potential (CAP) and nerve conduction velocity of isolated toad sciatic nerve. This is the first report of a non-conventional 3FTx from Naja kaouthia venom that reduces CAP for its neurotoxic effect. Further studies can be carried out to understand the mechanism of action and to explore its potential therapeutic application.
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Affiliation(s)
- Diganta Das
- Molecular Toxinology Laboratory, Department of Molecular Biology and Biotechnology, Tezpur University, Tezpur-, 784028, India
| | - Maitreyee Sharma
- Molecular Toxinology Laboratory, Department of Molecular Biology and Biotechnology, Tezpur University, Tezpur-, 784028, India
| | - Hemanga Kumar Das
- Department of Electronics and Communication Engineering, Tezpur University, Tezpur, 784028, India
| | - Partha Pratim Sahu
- Department of Electronics and Communication Engineering, Tezpur University, Tezpur, 784028, India
| | - Robin Doley
- Molecular Toxinology Laboratory, Department of Molecular Biology and Biotechnology, Tezpur University, Tezpur-, 784028, India. ,
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Roly ZY, Hakim MA, Zahan ASMS, Hossain MM, Reza MA. ISOB: A Database of Indigenous Snake Species of Bangladesh with respective known venom composition. Bioinformation 2015; 11:107-14. [PMID: 25848172 PMCID: PMC4369687 DOI: 10.6026/97320630011107] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2015] [Accepted: 01/22/2015] [Indexed: 11/23/2022] Open
Abstract
UNLABELLED At present there is no well structured database available for the venomous snakes and venom composition of snakes in the world although venom has immense importance in biomedical research. Searching for a specific venom component from NCBI, PDB or public databases is troublesome, because they contain huge amount of data entries. Therefore, we created a database named "ISOB" which is a web accessible unique secondary database that represents the first online available bioinformatics resource showing venom composition of snakes. This database provides a comprehensive overview of seventy-eight indigenous snake species covering description of snakes supplemented with structural information of the relevant individual available venom proteins. We strongly believe that this database will contribute significantly in the field of bioinformatics, environmental research, proteomics, drug development and rationale drug designing. AVAILABILITY The database is freely available at http://www.snakebd.com/.
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Affiliation(s)
- Zahida Yesmin Roly
- Department of Genetic Engineering and Biotechnology, University of Rajshahi, Rajshahi-6205, Bangladesh
| | - Md Abdul Hakim
- Department of Genetic Engineering and Biotechnology, University of Rajshahi, Rajshahi-6205, Bangladesh
| | | | - M Monzur Hossain
- Department of Botany, University of Rajshahi, Rajshahi-6205, Bangladesh
| | - Md Abu Reza
- Department of Genetic Engineering and Biotechnology, University of Rajshahi, Rajshahi-6205, Bangladesh
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Roly ZY, Hasan SMN, Ferdaus KMKB, Reza MA. Predicted structure model of Bungarotoxin from Bungarus fasciatus snake. Bioinformation 2014; 10:617-22. [PMID: 25489170 PMCID: PMC4248343 DOI: 10.6026/97320630010617] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2014] [Accepted: 09/20/2014] [Indexed: 11/23/2022] Open
Abstract
Snake venoms are cocktails comprising combinations of different proteins, peptides, enzymes and toxins. Snake toxins have diverse characteristics having different molecular configuration, structure and mode of action. Many toxins derived from snake venom have distinct pharmacological activities. Venom from Bungarus fasciatus (commonly known as banded krait) is a species of elapid snake found on the South East Asia and Indian sub-continent, mainly contains neurotoxins. Beta bungartotoxin is the major fraction of Bungarus venom and particularly act pre-synaptically by obstructing neurotransmitter release. This toxin in other snake species functionally forms a heterodimer containing two different subunits (A and B). Dimerization of these two chains is a pre-requisite for the proper functionality of this protein. However, B. fasciatus bungartotoxin contains only B chain and their structural orientation in yet to be resolved. Therefore, it is of interest to describe the predicted structure model of the toxin for functional insights. In this work we analyzed the neurotoxic nature, their alignments, secondary and three dimensional structures, functions, active sites and stability with the help of different bioinformatical tools. A comprehensive analysis of the predicted model provides approaching to the functional interpretation of its molecular action.
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Affiliation(s)
- Zahida Yesmin Roly
- Department of Genetic Engineering and Biotechnology, Faculty of Life and Earth Science, University of Rajshahi, Rajshahi-6205,Bangladesh
- Authors equally contributed
| | - SM Naimul Hasan
- Department of Genetic Engineering and Biotechnology, Faculty of Life and Earth Science, University of Rajshahi, Rajshahi-6205,Bangladesh
- Authors equally contributed
| | - KMKB Ferdaus
- Assistant Professor, Department of Genetic Engineering and Biotechnology, University of Rajshahi, Rajshahi -6205,Bangladesh
| | - Md Abu Reza
- Professor, Department of Genetic Engineering and Biotechnology, University of Rajshahi, Rajshahi-6205, Bangladesh
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