Hexapod Assassins’ Potion: Venom Composition and Bioactivity from the Eurasian Assassin Bug Rhynocoris iracundus

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dc.contributor.authorRügen, Nicolai
dc.contributor.authorJenkins, Timothy P.
dc.contributor.authorWielsch, Natalie
dc.contributor.authorVogel, Heiko
dc.contributor.authorHempel, Benjamin-Florian
dc.contributor.authorSüssmuth, Roderich D.
dc.contributor.authorAinsworth, Stuart
dc.contributor.authorCabezas-Cruz, Alejandro
dc.contributor.authorVilcinskas, Andreas
dc.contributor.authorTonk, Miray
dc.date.accessioned2021-08-17T10:57:43Z
dc.date.available2021-08-17T10:57:43Z
dc.date.issued2021-07-14
dc.date.updated2021-08-01T17:12:17Z
dc.description.abstractAssassin bug venoms are potent and exert diverse biological functions, making them potential biomedical goldmines. Besides feeding functions on arthropods, assassin bugs also use their venom for defense purposes causing localized and systemic reactions in vertebrates. However, assassin bug venoms remain poorly characterized. We collected the venom from the assassin bug Rhynocoris iracundus and investigated its composition and bioactivity in vitro and in vivo. It caused lysis of murine neuroblastoma, hepatoma cells, and healthy murine myoblasts. We demonstrated, for the first time, that assassin bug venom induces neurolysis and suggest that it counteracts paralysis locally via the destruction of neural networks, contributing to tissue digestion. Furthermore, the venom caused paralysis and melanization of Galleria mellonella larvae and pupae, whilst also possessing specific antibacterial activity against Escherichia coli, but not Listeria grayi and Pseudomonas aeruginosa. A combinatorial proteo-transcriptomic approach was performed to identify potential toxins responsible for the observed effects. We identified neurotoxic Ptu1, an inhibitory cystin knot (ICK) toxin homologous to ω-conotoxins from cone snails, cytolytic redulysins homologous to trialysins from hematophagous kissing bugs, and pore-forming hemolysins. Additionally, chitinases and kininogens were found and may be responsible for insecticidal and cytolytic activities. We demonstrate the multifunctionality and complexity of assassin bug venom, which renders its molecular components interesting for potential biomedical applications.en
dc.description.sponsorshipEC/H2020/713683/EU/H.C. Ørsted Fellows Programme – co-funded by Marie Skłodowska Curie Actions (COFUNDfellowsDTU)/COFUNDfellowsDTUen
dc.identifier.eissn2227-9059
dc.identifier.urihttps://depositonce.tu-berlin.de/handle/11303/13510
dc.identifier.urihttp://dx.doi.org/10.14279/depositonce-12293
dc.language.isoenen
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en
dc.subject.ddc570 Biowissenschaften; Biologiede
dc.subject.otherassassin bugsen
dc.subject.othervenomen
dc.subject.othertranscriptomicsen
dc.subject.otherproteomicsen
dc.subject.otherbioactivityen
dc.subject.otherparalysisen
dc.subject.othercytolysisen
dc.subject.otherantibacterialen
dc.subject.otherneurolysisen
dc.titleHexapod Assassins’ Potion: Venom Composition and Bioactivity from the Eurasian Assassin Bug Rhynocoris iracundusen
dc.typeArticleen
dc.type.versionpublishedVersionen
dcterms.bibliographicCitation.articlenumber819en
dcterms.bibliographicCitation.doi10.3390/biomedicines9070819en
dcterms.bibliographicCitation.issue7en
dcterms.bibliographicCitation.journaltitleBiomedicinesen
dcterms.bibliographicCitation.originalpublishernameMDPIen
dcterms.bibliographicCitation.originalpublisherplaceBaselen
dcterms.bibliographicCitation.volume9en
tub.accessrights.dnbfreeen
tub.affiliationVerbundforschung::Exzellenzcluster (EXC)::EXC - UniSysCatde
tub.affiliation.facultyVerbundforschungde
tub.affiliation.groupEXC - UniSysCatde
tub.affiliation.instituteExzellenzcluster (EXC)de
tub.publisher.universityorinstitutionTechnische Universität Berlinen
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