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Synergy between rhinacanthins from Rhinacanthus nasutus in inhibition against mosquito cytochrome P450 enzymes
Kotewong R. - ไม่ระบุหน่วยงาน
ชื่อเรื่อง (EN): Synergy between rhinacanthins from Rhinacanthus nasutus in inhibition against mosquito cytochrome P450 enzymes
ผู้แต่ง / หัวหน้าโครงการ (EN): Kotewong R.
บทคัดย่อ (EN): The cytochrome P450 monooxygenases play a major role in insecticide detoxification and become a target for development of insecticide synergists. In this study, a collection of rhinacanthins (rhinacanthin-D, -E, -G, -N, -Q, and -H/I) purified from Rhinacanthus nasutus, in addition to previously purified rhinacanthin-B and -C, were isolated. These compounds displayed various degrees of inhibition against benzyloxyresorufin-O-debenzylation mediated by CYP6AA3 and CYP6P7 which were implicated in pyrethroid resistance in Anopheles minimus malaria vector. Inhibition modes and kinetics were determined for each of rhinacanthins. Cell-based inhibition assays by rhinacanthins employing 3-(4, 5-dimethylthiazol-2-y-l)-2, 5-diphenyltetrazolium bromide (MTT) cytotoxicity test were explored their synergistic effects with cypermethrin toxicity on CYP6AA3- and CYP6P7-expressing Spodoptera frugiperda (Sf9) cells. Rhinacanthin-B, -D, -E, -G, and -N exhibited mechanism-based inhibition against CYP6AA3, an indication of irreversible inhibition, while rhinacanthin-B, -D, -G, and -N were mechanism-based inhibitors of CYP6P7. There was structure-function relationship of these rhinacanthins in inhibition effects against both enzymes. In vitro enzymatic inhibition assays revealed that there were synergistic interactions among rhinacanthins, except rhinacanthin-B and -Q, in inhibition against both enzymes. These rhinacanthins exerted synergism with cypermethrin toxicity on Sf9 cells expressing each of the two P450 enzymes via P450 inhibition and in addition could interact in synergy to further increase cypermethrin toxicity. The inhibition potentials, synergy among rhinacanthins in inhibition against the P450 detoxification enzymes, and synergism with cypermethrin toxicity of the R. nasutus constituents of reported herein could be beneficial to implement effective resistance management of mosquito vector control. © 2015, Springer-Verlag Berlin Heidelberg.
บทคัดย่อ: ไม่พบข้อมูลจากหน่วยงานต้นทาง
ภาษา (EN): en
เอกสารแนบ (EN): https://www.scopus.com/inward/record.uri?eid=2-s2.0-84935025671&doi=10.1007%2fs00436-015-4461-8&partnerID=40&md5=7b74824f91004d411d707cc00aff002c
เผยแพร่โดย (EN): มหาวิทยาลัยมหิดล
คำสำคัญ (EN): Spodoptera
เจ้าของลิขสิทธิ์ (EN): มหาวิทยาลัยมหิดล
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Synergy between rhinacanthins from Rhinacanthus nasutus in inhibition against mosquito cytochrome P450 enzymes
Kotewong R.
มหาวิทยาลัยมหิดล
ไม่ระบุวันที่เผยแพร่
Cytochrome P450 enzyme mediated herbal drug interactions (Part 2) Cytochrome P450 enzyme mediated herbal drug interactions (part 1) Mosquito vector-associated microbiota: Metabarcoding bacteria and eukaryotic symbionts across habitat types in Thailand endemic for dengue and other arthropod-borne diseases Combined larvicidal efficacy of rhinacanthin-c, luteolin, quercetin, and binary mixtures of rhinacanthus nasutus, andrographis paniculata and vernonia cinerea extracts against aedes aegypti mosquito Inhibition of oxidative stress through the induction of antioxidant enzymes of pigmented rice bran in HEK-293 cells Effects of cytochrome P450 2C19 and paraoxonase 1 polymorphisms on antiplatelet response to clopidogrel therapy in patients with coronary artery disease การพัฒนาโมโนโคลนอลแอนติบอดีต่อ cytochrome P450 1A (CYP1A) ในปลากะพงขาว (Lates calcarifer) ที่ได้รับสารเบนโซ[เอ]ไพรีน การพัฒนาโมโนโคลนอลแอนติบอดีต่อ cytochrome P450 1A (CYP1A) ในปลากะพงขาว (Lates calcarifer) ที่ได้รับสารเบนโซ[เอ]ไพรีน Cytochrome c oxidase subunit I haplotype diversity of Angiostrongylus cantonensis (Nematoda: Angiostrongylidae) Simulations to compare efficacies of tetravalent dengue vaccines and mosquito vector control
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