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Zhu Z, Deng X, Xie W, Li H, Li Y, Deng Z. Pharmacological effects of bioactive agents in earthworm extract: A comprehensive review. Animal Model Exp Med 2024. [PMID: 38957072 DOI: 10.1002/ame2.12465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Accepted: 06/17/2024] [Indexed: 07/04/2024] Open
Abstract
This review compiles information from the literature on the chemical composition, pharmacological effects, and molecular mechanisms of earthworm extract (EE) and suggests possibilities for clinical translation of EE. We also consider future trends and concerns in this domain. We summarize the bioactive components of EE, including G-90, lysenin, lumbrokinase, antimicrobial peptides, earthworm serine protease (ESP), and polyphenols, and detail the antitumor, antithrombotic, antiviral, antibacterial, anti-inflammatory, analgesic, antioxidant, wound-healing, antifibrotic, and hypoglycemic activities and mechanisms of action of EE based on existing in vitro and in vivo studies. We further propose the potential of EE for clinical translation in anticancer and lipid-modifying therapies, and its promise as source of a novel agent for wound healing and resistance to antibiotic tolerance. The earthworm enzyme lumbrokinase embodies highly effective anticoagulant and thrombolytic properties and has the advantage of not causing bleeding phenomena due to hyperfibrinolysis. Its antifibrotic properties can reduce the excessive accumulation of extracellular matrix. The glycolipoprotein extract G-90 can effectively scavenge reactive oxygen groups and protect cellular tissues from oxidative damage. Earthworms have evolved a well-developed defense mechanism to fight against microbial infections, and the bioactive agents in EE have shown good antibacterial, fungal, and viral properties in in vitro and in vivo experiments and can alleviate inflammatory responses caused by infections, effectively reducing pain. Recent studies have also highlighted the role of EE in lowering blood glucose. EE shows high medicinal value and is expected to be a source of many bioactive compounds.
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Affiliation(s)
- Zihan Zhu
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Xinyi Deng
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Wenqing Xie
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Hengzhen Li
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yusheng Li
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Zhenhan Deng
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
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Waller D, Putnam J, Steiner JN, Fisher B, Burcham GN, Oliver J, Smith SB, Erickson R, Remek A, Bodoeker N. Targeted metabolomics characterizes metabolite occurrence and variability in stable freshwater mussel populations. CONSERVATION PHYSIOLOGY 2023; 11:coad040. [PMID: 37701372 PMCID: PMC10494281 DOI: 10.1093/conphys/coad040] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 03/30/2023] [Accepted: 06/06/2023] [Indexed: 09/14/2023]
Abstract
Freshwater mussels (order Unionida) play a key role in freshwater systems as ecosystem engineers and indicators of aquatic ecosystem health. The fauna is globally imperilled due to a diversity of suspected factors; however, causes for many population declines and mortality events remain unconfirmed due partly to limited health assessment tools. Mussel-monitoring activities often rely on population-level measurements, such as abundance and age structure, which reflect delayed responses to environmental conditions. Measures of organismal health would enable preemptive detection of declining condition before population-level effects manifest. Metabolomic analysis can identify shifts in biochemical pathways in response to stressors and changing environmental conditions; however, interpretation of the results requires information on inherent variability of metabolite concentrations in mussel populations. We targeted metabolites in the haemolymph of two common mussels, Lampsilis cardium and Lampsilis siliquoidea, from three Indiana streams (USA) using ultra-high-performance liquid chromatography combined with quadrupole time-of-flight mass spectroscopy. The influence of species, stream and sex on metabolite variability was examined with distance-based redundancy analysis. Metabolite variability was most influenced by species, followed by site and sex. Inter- and intraspecies metabolite variability among sexes was less distinct than differences among locations. We further categorized metabolites by occurrence and variability in mussel populations. Metabolites with high occurrence (Categories 1 and 2) included those indicative of energy status (catabolism versus anabolism; arginine, proline, carnitine, nicotinic acid, pantothenic acid), oxidative stress (proline, glutamine, glutamate) and protein metabolism (thymidine, cytidine, inosine). Metabolites with lower occurrence (Category 3) are constituents of assorted metabolic pathways and can be important biomarkers with additional temporal sampling to characterize their variability. These data provide a reference for future temporal (before/after) monitoring and for studies of stressor-metabolite linkages in freshwater mussels.
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Affiliation(s)
- Diane Waller
- United States Geological Survey, Upper Midwest Environmental Sciences Center, 2630 Fanta Reed Road, La Crosse, WI 54603, USA
| | - Joel Putnam
- Conagen, Inc., 15 Deangelo Dr, Bedford, MA 01730, USA
| | - J Nolan Steiner
- United States Geological Survey, Upper Midwest Environmental Sciences Center, 2630 Fanta Reed Road, La Crosse, WI 54603, USA
| | - Brant Fisher
- Indiana Department of Natural Resources – Division of Fish & Wildlife, Atterbury Fish & Wildlife Area, 7970 South Rowe Street, Edinburgh, IN 46124, USA
| | - Grant N Burcham
- Heeke Animal Disease Diagnostic Laboratory, 11367 East Purdue Farm Road, Dubois, IN 47527 and Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, West Lafayette, IN 47907, USA
| | - John Oliver
- United States Geological Survey, Upper Midwest Environmental Sciences Center, 2630 Fanta Reed Road, La Crosse, WI 54603, USA
| | - Stephen B Smith
- Department of Animal Science, Texas A&M University, 2471 TAMU, College Station, TX 77843, USA
| | - Richard Erickson
- United States Geological Survey, Upper Midwest Environmental Sciences Center, 2630 Fanta Reed Road, La Crosse, WI 54603, USA
| | - Anne Remek
- 200 W Washington St, Indianapolis, IN 46204, USA
| | - Nancy Bodoeker
- Department of Comparative Pathobiology, Purdue University College of Veterinary Medicine, 625 Harrison St. West Lafayette, IN 47907, USA
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Czaplewska P, Bogucka A, Macur K, Rybicka M, Rychłowski M, Fiołka MJ. Proteomic response of A549 lung cancer cell line to protein-polysaccharide complex Venetin-1 isolated from earthworm coelomic fluid. Front Mol Biosci 2023; 10:1128320. [PMID: 37377864 PMCID: PMC10292018 DOI: 10.3389/fmolb.2023.1128320] [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: 12/20/2022] [Accepted: 05/16/2023] [Indexed: 06/29/2023] Open
Abstract
Earthworms' celomic fluid has long attracted scientists' interest due to their toxic properties. It has been shown that the elimination of coelomic fluid cytotoxicity to normal human cells was crucial for the generation of the non-toxic Venetin-1 protein-polysaccharide complex, which exhibits selective activity against Candida albicans cells as well as A549 non-small cell lung cancer cells. To find the molecular mechanisms behind the anti-cancer properties of the preparation, this research investigated the proteome response of A549 cells to the presence of Venetin-1. The sequential window acquisition of all theoretical mass spectra (SWATH-MS) methodology was used for the analysis, which allows for a relative quantitative analysis to be carried out without radiolabelling. The results showed that the formulation did not induce significant proteome responses in normal BEAS-2B cells. In the case of the tumour line, 31 proteins were up regulated, and 18 proteins down regulated. Proteins with increased expression in neoplastic cells are mainly associated with the mitochondrion, membrane transport and the endoplasmic reticulum. In the case of altered proteins, Venetin-1 interferes with proteins that stabilise the structures, i.e., keratin, glycolysis/gluconeogenesis and metabolic processes.
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Affiliation(s)
- Paulina Czaplewska
- Intercollegiate Faculty of Biotechnology, The University of Gdansk, Gdańsk, Poland
| | - Aleksandra Bogucka
- Intercollegiate Faculty of Biotechnology, The University of Gdansk, Gdańsk, Poland
- Institute of Biochemistry, Justus Liebig University of Giessen, Giessen, Germany
| | - Katarzyna Macur
- Intercollegiate Faculty of Biotechnology, The University of Gdansk, Gdańsk, Poland
| | - Magda Rybicka
- Intercollegiate Faculty of Biotechnology, The University of Gdansk, Gdańsk, Poland
| | - Michał Rychłowski
- Intercollegiate Faculty of Biotechnology, The University of Gdansk, Gdańsk, Poland
| | - Marta J. Fiołka
- Department of Immunobiology, Institute of Biological Sciences, Maria Curie-Skłodowska University, Lublin, Poland
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Paul K, D'Ambrosio J, Phocas F. Temporal and region‐specific variations in genome‐wide inbreeding effects on female size and reproduction traits of rainbow trout. Evol Appl 2021; 15:645-662. [PMID: 35505890 PMCID: PMC9046919 DOI: 10.1111/eva.13308] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 07/11/2021] [Accepted: 09/14/2021] [Indexed: 02/01/2023] Open
Abstract
Recent studies have shown that current levels of inbreeding, estimated by runs of homozygosity (ROH), are moderate to high in farmed rainbow trout lines. Based on ROH metrics, the aims of our study were to (i) quantify inbreeding effects on female size (postspawning body weight, fork length) and reproduction traits (spawning date, coelomic fluid weight, spawn weight, egg number, average egg weight) in rainbow trout, and (ii) identify both the genomic regions and inbreeding events affecting performance. We analysed the performance of 1346 females under linear animal models including random additive and dominance genetics effects, with fixed covariates accounting for inbreeding effects at different temporal and genomic scales. A significant effect of genome‐wide inbreeding (F) was only observed for spawning date and egg weight, with performance variations of +12.3% and −3.8%, respectively, for 0.1 unit increase in F level. At different local genomic scales, we observed highly variable inbreeding effects on the seven traits under study, ranging from increasing to decreasing trait values. As widely reported in the literature, the main scenario observed during this study was a negative impact of recent inbreeding. However, other scenarios such as positive effects of recent inbreeding or negative impacts of old inbreeding were also observed. Although partial dominance appeared to be the main hypothesis explaining inbreeding depression for all the traits studied, the overdominance hypothesis might also play a significant role in inbreeding depression affecting fecundity (egg number and mass) traits in rainbow trout. These findings suggest that region‐specific inbreeding can strongly impact performance without necessarily observing genome‐wide inbreeding effects. They shed light on the genetic architecture of inbreeding depression and its evolution along the genome over time. The use of region‐specific metrics may enable breeders to more accurately manage the trade‐off between genetic merit and the undesirable side effects associated with inbreeding.
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Affiliation(s)
- Katy Paul
- Université Paris‐Saclay INRAE AgroParisTech GABIJouy‐en‐Josas France
| | - Jonathan D'Ambrosio
- Université Paris‐Saclay INRAE AgroParisTech GABIJouy‐en‐Josas France
- SYSAAFStation INRAE‐LPGPCampus de Beaulieu Rennes France
| | - Florence Phocas
- Université Paris‐Saclay INRAE AgroParisTech GABIJouy‐en‐Josas France
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Scott-Fordsmand JJ, Amorim MJB. The Curious Case of Earthworms and COVID-19. BIOLOGY 2021; 10:biology10101043. [PMID: 34681142 PMCID: PMC8533077 DOI: 10.3390/biology10101043] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 10/08/2021] [Accepted: 10/12/2021] [Indexed: 12/12/2022]
Abstract
Simple Summary Earthworms have been used for centuries in traditional medicine, and more than a century ago were praised by Charles Darwin as one of the most important organisms in the history of the world. These worms are well-studied with a wealth of information available, for example on the genome, the gene expression, the immune system, the general biology, and ecology. These worms live in many habitats, and they had to find solutions for severe environmental challenges. The common compost worm, Eisenia fetida, has developed a unique mechanism to deal with intruding (nano)materials, bacteria, and viruses. It deals with the intruders by covering these with a defence toxin (lysenin) targeted to kill the intruder. We outline how this mechanism probably can be used as a therapeutic model for human COVID-19 (Severe Acute Respiratory Syndrome Coronavirus 2, SARS-CoV-2) and other corona viruses. Abstract Earthworms have been used for centuries in traditional medicine and are used globally as an ecotoxicological standard test species. Studies of the earthworm Eisenia fetida have shown that exposure to nanomaterials activates a primary corona-response, which is covering the nanomaterial with native proteins, the same response as to biological invaders such as a virus. We outline that the earthworm Eisenia fetida is possibly immune to COVID-19 (Severe Acute Respiratory Syndrome Coronavirus 2, SARS-CoV-2), and we describe the likely mechanisms of highly receptor-specific pore-forming proteins (PFPs). A non-toxic version of this protein is available, and we hypothesize that it is possible to use the earthworm’s PFPs based anti-viral mechanism as a therapeutic model for human SARS-CoV-2 and other corona viruses. The proteins can be used as a drug, for example, delivered with a nanoparticle in a similar way to the current COVID-19 vaccines. Obviously, careful consideration should be given to the potential risk of toxicity elicited by lysenin for in vivo usage. We aim to share this view to activate its exploration by the wider scientific community while promoting a potential therapeutic development.
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Affiliation(s)
- Janeck J. Scott-Fordsmand
- Department of Biosciences, Aarhus University, 8600 Silkeborg, Denmark
- Correspondence: ; Tel.: +45-4025-6803
| | - Monica J. B. Amorim
- Department of Biology & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal;
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Czerwonka A, Fiołka MJ, Jędrzejewska K, Jankowska E, Zając A, Rzeski W. Pro-apoptotic action of protein-carbohydrate fraction isolated from coelomic fluid of the earthworm Dendrobaena veneta against human colon adenocarcinoma cells. Biomed Pharmacother 2020; 126:110035. [PMID: 32113054 DOI: 10.1016/j.biopha.2020.110035] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 01/31/2020] [Accepted: 02/17/2020] [Indexed: 12/22/2022] Open
Abstract
Earthworm coelomic fluid (CF) is known as a rich source of various bioactive compounds with promising anticancer features. However, it has been demonstrated that CF affects functionality of both, cancer and normal cells. This non-selective activity causes a major problem for medical application of CF. In this study, we present the anticancer activity of the active protein-carbohydrate fraction (AF) isolated from thermally treated CF of earthworm Dendrobaena veneta. The in vitro effect of the AF was examined in human colon model including normal human colon epithelium (CCD 841 CoTr) and human colon adenocarcinoma (HT-29 and LS180) cell lines. We investigated the impact of AF on cell viability neutral red and lactate dehydrogenase assays, morphology May-Grünwald-Giemsa staining assay proliferation MTT tetrazolium salt and BrdU incorporation assays as well as cell cycle progression propidium iodide/RNase staining and the activity of human 20S proteasome the hydrolysis of AMC from a Suc-LLVY-AMC peptide substrate. Additionally, the influence of AF on apoptosis was examined in HT-29 cells by Annexin V/PI, Hoechst 33342 staining and active caspase-3 assays. Our investigation demonstrated that AF at the tested concentration range does not affect the viability and morphology of CCD 841 CoTr cells. Simultaneously, AF inhibits human 20S proteasome activity as well as significantly decreases mitochondrial metabolism, disturbs cell cycle and induces apoptosis via activation of procaspase-3 in HT-29 cancer cells. Obtained results demonstrate the antiproliferative and proapoptotic activity of AF that can be useful in developing therapeutic strategies to treat human colon cancer.
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Affiliation(s)
- Arkadiusz Czerwonka
- Department of Virology and Immunology, Maria Curie-Skłodowska University, Lublin 20-033, Poland.
| | - Marta J Fiołka
- Department of Immunobiology, Maria Curie-Skłodowska University, Lublin 20-033, Poland.
| | - Katarzyna Jędrzejewska
- Department of Biomedical Chemistry, Faculty of Chemistry, University of Gdansk, Gdansk 80-308, Poland.
| | - Elżbieta Jankowska
- Department of Biomedical Chemistry, Faculty of Chemistry, University of Gdansk, Gdansk 80-308, Poland.
| | - Adrian Zając
- Department of Functional Anatomy and Cytobiology, Maria Curie-Skłodowska University, Lublin 20-033, Poland.
| | - Wojciech Rzeski
- Department of Virology and Immunology, Maria Curie-Skłodowska University, Lublin 20-033, Poland; Department of Functional Anatomy and Cytobiology, Maria Curie-Skłodowska University, Lublin 20-033, Poland; Department of Medical Biology, Institute of Rural Health, Lublin 20-090, Poland.
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7
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Fiołka MJ, Czaplewska P, Macur K, Buchwald T, Kutkowska J, Paduch R, Kaczyński Z, Wydrych J, Urbanik-Sypniewska T. Anti-Candida albicans effect of the protein-carbohydrate fraction obtained from the coelomic fluid of earthworm Dendrobaena veneta. PLoS One 2019; 14:e0212869. [PMID: 30856188 PMCID: PMC6411149 DOI: 10.1371/journal.pone.0212869] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Accepted: 02/11/2019] [Indexed: 01/09/2023] Open
Abstract
An antifungal active fraction (AAF) from the coelomic fluid (CF) of the earthworm Dendrobaena veneta was isolated. The aim of the study was to analyze the antifungal activity of the AAF and to carry out chemical characterization of the fraction. The active fraction showed antifungal activity against a clinical C. albicans isolate, C. albicans ATCC 10231, and C. krusei ATCC 6258. It effectively reduced the metabolic activity of C. albicans cells and influenced their morphology after 48 hours of incubation. Scanning electron microscopy (SEM) images revealed loss of integrity of the cell wall induced by the active fraction. Calcofluor White staining showed changes in the structure of the C. albicans cell wall induced by the AAF. The fungal cells died via apoptosis and necrosis after the treatment with the studied fraction. Electrophoresis under native conditions revealed the presence of two compounds in the AAF, while SDS/PAGE gel electrophoresis showed several protein and carbohydrate compounds. The active fraction was analyzed using Raman spectroscopy, MALDI TOF/TOF, and ESI LC-MS. The Raman analysis confirmed the presence of proteins and determined their secondary structure. The MALDI TOF/TOF analysis facilitated detection of four main compounds with a mass of 7694.9 m/z, 12292.3 m/z, 21628.3 m/z, and 42923.2 m/z in the analyzed fraction. The presence of carbohydrate compounds in the preparation was confirmed by nuclear magnetic resonance (NMR) and gas chromatography (GC-MS). The ATR-FTIR spectrum of the AAF exhibited high similarity to the spectrum of egg white lysozyme. The AAF showed no endotoxicity and cytotoxicity towards normal skin fibroblasts (HSF); therefore, it can be used for the treatment of skin and mucous membrane candidiasis in the future. Given its efficient and selective action, the fraction seems to be a promising preparation with antifungal activity against C. albicans.
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Affiliation(s)
- Marta J. Fiołka
- Department of Immunobiology, Institute of Biology and Biochemistry, Maria Curie-Skłodowska University, Lublin, Poland
- * E-mail:
| | - Paulina Czaplewska
- Intercollegiate Faculty of Biotechnology UG-MUG Laboratory of Mass Spectrometry, Gdansk, Poland
| | - Katarzyna Macur
- Intercollegiate Faculty of Biotechnology UG-MUG Laboratory of Mass Spectrometry, Gdansk, Poland
| | - Tomasz Buchwald
- Institute of Material Research and Quantum Engineering, Faculty of Technical Physics, Poznań University of Technology, Poznań, Poland
| | - Jolanta Kutkowska
- Department of Genetics and Microbiology, Faculty of Biology and Biotechnology Maria Curie-Skłodowska University, Lublin, Poland
| | - Roman Paduch
- Department of Virology and Immunology, Institute of Microbiology and Biotechnology, Maria Curie-Skłodowska University, Lublin, Poland
| | - Zbigniew Kaczyński
- Department of Biomedical Chemistry, Laboratory of Structural Biochemistry, Faculty of Chemistry, University of Gdańsk, Gdańsk, Poland
| | - Jerzy Wydrych
- Department of Comparative Anatomy and Anthropology, Institute of Biology and Biochemistry, Maria Curie-Skłodowska University, Lublin, Poland
| | - Teresa Urbanik-Sypniewska
- Department of Genetics and Microbiology, Faculty of Biology and Biotechnology Maria Curie-Skłodowska University, Lublin, Poland
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von Reumont BM, Campbell LI, Richter S, Hering L, Sykes D, Hetmank J, Jenner RA, Bleidorn C. A Polychaete's powerful punch: venom gland transcriptomics of Glycera reveals a complex cocktail of toxin homologs. Genome Biol Evol 2014; 6:2406-23. [PMID: 25193302 PMCID: PMC4202326 DOI: 10.1093/gbe/evu190] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Glycerids are marine annelids commonly known as bloodworms. Bloodworms have an eversible proboscis adorned with jaws connected to venom glands. Bloodworms prey on invertebrates, and it is known that the venom glands produce compounds that can induce toxic effects in animals. Yet, none of these putative toxins has been characterized on a molecular basis. Here we present the transcriptomic profiles of the venom glands of three species of bloodworm, Glycera dibranchiata, Glycera fallax and Glycera tridactyla, as well as the body tissue of G. tridactyla. The venom glands express a complex mixture of transcripts coding for putative toxin precursors. These transcripts represent 20 known toxin classes that have been convergently recruited into animal venoms, as well as transcripts potentially coding for Glycera-specific toxins. The toxins represent five functional categories: Pore-forming and membrane-disrupting toxins, neurotoxins, protease inhibitors, other enzymes, and CAP domain toxins. Many of the transcripts coding for putative Glycera toxins belong to classes that have been widely recruited into venoms, but some are homologs of toxins previously only known from the venoms of scorpaeniform fish and monotremes (stonustoxin-like toxin), turrid gastropods (turripeptide-like peptides), and sea anemones (gigantoxin I-like neurotoxin). This complex mixture of toxin homologs suggests that bloodworms employ venom while predating on macroscopic prey, casting doubt on the previously widespread opinion that G. dibranchiata is a detritivore. Our results further show that researchers should be aware that different assembly methods, as well as different methods of homology prediction, can influence the transcriptomic profiling of venom glands.
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Affiliation(s)
- Björn M von Reumont
- Department of Life Sciences, The Natural History Museum, London, United Kingdom
| | - Lahcen I Campbell
- Department of Life Sciences, The Natural History Museum, London, United Kingdom
| | - Sandy Richter
- Molecular Evolution and Systematics of Animals, Institute of Biology, University of Leipzig, Germany
| | - Lars Hering
- Animal Evolution & Development, Institute of Biology, University of Leipzig, Germany
| | - Dan Sykes
- Imaging and Analysis Centre, The Natural History Museum, London, United Kingdom
| | - Jörg Hetmank
- Molecular Evolution and Systematics of Animals, Institute of Biology, University of Leipzig, Germany
| | - Ronald A Jenner
- Department of Life Sciences, The Natural History Museum, London, United Kingdom
| | - Christoph Bleidorn
- Molecular Evolution and Systematics of Animals, Institute of Biology, University of Leipzig, Germany German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany
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9
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Earthworm-derived pore-forming toxin lysenin and screening of its inhibitors. Toxins (Basel) 2013; 5:1392-401. [PMID: 23965430 PMCID: PMC3760042 DOI: 10.3390/toxins5081392] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2013] [Revised: 07/08/2013] [Accepted: 07/31/2013] [Indexed: 11/16/2022] Open
Abstract
Lysenin is a pore-forming toxin from the coelomic fluid of earthworm Eisenia foetida. This protein specifically binds to sphingomyelin and induces erythrocyte lysis. Lysenin consists of 297 amino acids with a molecular weight of 41 kDa. We screened for cellular signal transduction inhibitors of low molecular weight from microorganisms and plants. The purpose of the screening was to study the mechanism of diseases using the obtained inhibitors and to develop new chemotherapeutic agents acting in the new mechanism. Therefore, our aim was to screen for inhibitors of Lysenin-induced hemolysis from plant extracts and microbial culture filtrates. As a result, we isolated all-E-lutein from an extract of Dalbergia latifolia leaves. All-E-lutein is likely to inhibit the process of Lysenin-membrane binding and/or oligomer formation rather than pore formation. Additionally, we isolated tyrosylproline anhydride from the culture filtrate of Streptomyces as an inhibitor of Lysenin-induced hemolysis.
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10
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Wang X, Chang L, Sun Z, Zhang Y, Yao L. Analysis of earthworm Eisenia fetida
proteomes during cadmium exposure: An ecotoxicoproteomics approach. Proteomics 2010; 10:4476-90. [DOI: 10.1002/pmic.201000209] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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11
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Kobayashi H, Suzuki H, Ohta N. Exfoliation of the Epidermal cells and Defecation by Amphibian Larvae in Response to Coelomic Fluid and Lysenin from the Earthworm Eisenia foetida. Biomed Res 2006; 27:169-81. [PMID: 16971770 DOI: 10.2220/biomedres.27.169] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Coelomic fluid (CF) and lysenin from the earthworm Eisenia foetida induced heavy epidermal exfoliation in the larvae of Bufo japonicus formosus at developmental stages from hatching (stage 22) to operculum completion (stage 34). In experiments with Xenopus laevis, we observed that exfoliated cells were not stained by trypan blue. Thus, it appeared that these cells were still alive. It is likely, therefore, that both CF and lysenin might disrupt the adhesion between epidermal cells of larvae prior to stage 34. Since it is known that lysenin exerts its toxic effects through its specific binding to sphingomyelin (SM), SM might be involved in such adhesion. This hypothesis was supported by the observations that CF and lysenin which had been incubated with SM-liposomes lost their exfoliative activity. In larvae after stage 34, the mechanism of adhesion between epidermal cells seemed to change and the adhesion was no longer disrupted by CF and lysenin. In larvae at around stage 34, a collagen layer started to form beneath the basement membrane of the epidermis. Furthermore, larvae at around this stage started to eat solid food. The developing collagen layer and food intake might be related indirectly to the chemical change in epidermal adhesion. The induction of exfoliation by CF and lysenin was also observed in other amphibian species. In Bufo larvae, defecation was induced both by CF and by lysenin but this effect was independent of exfoliation.
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Affiliation(s)
- Hideshi Kobayashi
- Research Laboratory, Zenyaku Kogyo Co., Ltd., Ohizumimachi, Tokyo, Japan
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12
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Nishiwaki H, Ito K, Otsuki K, Yamamoto H, Komai K, Matsuda K. Purification and functional characterization of insecticidal sphingomyelinase C produced by Bacillus cereus. ACTA ACUST UNITED AC 2004; 271:601-6. [PMID: 14728687 DOI: 10.1111/j.1432-1033.2003.03962.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Bacillus cereus isolated from the larvae of Myrmeleon bore was found to secrete proteins that paralyze and kill German cockroaches, Blattela germanica, when injected. One of these active proteins was purified from the culture broth of B. cereus using anion-exchange and gel-filtration chromatography. The purified toxin, with a molecular mass of 34 kDa, was identified as sphingomyelinase C (EC 3.1.4.12) on the basis of its N-terminal and internal amino-acid sequences. A recombinant sphingomyelinase C expressed in Escherichia coli was as potent as the native protein in killing the cockroaches. Site-directed mutagenesis (His151Ala) that inactivated the sphingomyelinase activity also abolished the insecticidal activity, suggesting that the rapid insect toxicity of sphingomyelinase C results from its phospholipid-degrading activity.
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Affiliation(s)
- Hisashi Nishiwaki
- Department of Agricultural Chemistry, Faculty of Agriculture, Kinki University, Nara, Japan
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