注射大鼠脑神经膜的非洲爪蟾卵母细胞——一种创新的体外方法研究拟除虫菊酯对天然态离子通道的影响
John Clark , Steve Symington
工程(英文) ›› 2020, Vol. 6 ›› Issue (5) : 515 -521.
注射大鼠脑神经膜的非洲爪蟾卵母细胞——一种创新的体外方法研究拟除虫菊酯对天然态离子通道的影响
Neurolemma-Injected Xenopus Oocytes: An Innovative Ex Vivo Approach to Study the Effects of Pyrethroids on Ion Channels in Their Native State
将大鼠脑神经膜微移植到非洲爪蟾卵母细胞的质膜中,是一种利用标准电生理学方式研究其天然态通道和受体的体外方法。在本文中,我们发现注射了成年大鼠脑神经膜的卵母细胞会引发对河豚毒素敏感的膜去极化内向离子流,经除虫菊酯类杀虫剂氯菊酯和溴氰菊酯处理后,该电流呈浓度依赖性增加。根据我们最初的方案,随着时间的推移,卵母细胞的健康水平会降低,不同批次的不同蛙类卵母细胞间与神经膜的结合程度也不同,这限制了该试验在调控问题上的实用性。对分析程序、数据接受标准和分析方法的一系列更改可显著提高试验的精度,从而提高性能。这些变化促使这种体外方法成为一种毒理学相关分析方法,以研究拟除虫菊酯对取自幼年和成年大鼠脑中的神经膜片段的离子通道的毒性作用。
Microtransplantation of rat brain neurolemma into the plasma membrane of Xenopus laevis oocytes is an ex vivo method used to study channels and receptors in their native state using standard electrophysiological approaches. In this review, we show that oocytes injected with adult rat brain neurolemma elicited tetrodotoxin-sensitive inward ion currents upon membrane depolarization, which were increased in a concentration-dependent manner by treatment with the pyrethroid insecticides permethrin and deltamethrin. Under our initial protocols, oocyte health was reduced over time and neurolemma incorporation varied between batches of oocytes from different frogs, limiting the usefulness of the assay for regulatory issues. A collection of changes to the assay procedure, data acceptance criteria, and analysis method yield substantially improved precision and, hence, assay performance. These changes established this ex vivo approach as a toxicologically relevant assay to study the toxicodynamic action of pyrethroids on ion channels in their native state using neurolemma fragments prepared from juvenile and adult rat brains.
微移植 / 拟除虫菊酯 / 大鼠脑神经膜 / 毒效动力学 / 电压敏感钠离子通道 / 非洲爪蟾
Microtransplantation / Pyrethroids / Rat brain neurolemma / Toxicodynamics / Voltage-sensitive sodium channels / Xenopus laevis
| [1] |
Soderlund DM. Toxicology and mode of action of pyrethroid insecticides. In: Krieger R, editor. Hayes’ handbook of toxicology. New York: Academic Press; 2010. p. 1665–86. |
| [2] |
Goldin AL, Sumikawa K. Preparation of RNA for injection into Xenopus oocytes. Methods Enzymol 1992;207:279–97. |
| [3] |
Yoshii M, Tsunoo A, Narahashi T. Effects of pyrethroids and veratridine on two types of calcium channels in neuroblastoma cells. Soc Neurosci Abs 1985;11:518. |
| [4] |
Davies TG, Field LM, Usherwood PN, Williamson MS. DDT, pyrethrins, pyrethroids and insect sodium channels. IUBMB Life 2007;59(3):151–62. |
| [5] |
Clark JM, Edman SJ, Nagy SR, Canhoto A, Hecht F, Van Houten J. Action of DDT and pyrethroids on calcium channels in Paramecium tetraurelia. Pestic Sci 1995;44(1):79–81. |
| [6] |
Aleu J, Blasi J, Solsona C, Marsal J. Calcium-dependent acetylcholine release from Xenopus oocytes: simultaneous ionic currents and acetylcholine release recordings. Eur J Neurosci 2002;16(8):1442–8. |
| [7] |
Canals JM, Ruiz-Avila L, Cantí C, Solsona C, Marsal J. Functional reconstitution of KCl-evoked, Ca2+-dependent acetylcholine release system in Xenopus oocytes microinjected with presynaptic plasma membranes and synaptic vesicles. J Neurosci Res 1996;44(2):106–14. |
| [8] |
Limon A, Reyes-Ruiz JM, Miledi R. Microtransplantation of neurotransmitter receptors from postmortem autistic brains to Xenopus oocytes. Proc Natl Acad Sci USA 2008;105(31):10973–7. |
| [9] |
Marsal J, Tigyi G, Miledi R. Incorporation of acetylcholine receptors and Cl channels in Xenopus oocytes injected with torpedo electroplaque membranes. Proc Natl Acad Sci USA 1995;92(11):5224–8. |
| [10] |
Miledi R, Eusebi F, Martínez-Torres A, Palma E, Trettel F. Expression of functional neurotransmitter receptors in Xenopus oocytes after injection of human brain membranes. Proc Natl Acad Sci USA 2002;99(20):13238–42. |
| [11] |
Miledi R, Dueñas Z, Martinez-Torres A, Kawas CH, Eusebi F. Microtransplantation of functional receptors and channels from the Alzheimer’s brain to frog oocytes. Proc Natl Acad Sci USA 2004;101(6):1760–3. |
| [12] |
Miledi R, Palma E, Eusebi F. Microtransplantation of neurotransmitter receptors from cells to Xenopus oocyte membranes. In: Liu XJ, editor. Xenopus protocols: cell biology and signal transduction. Clifton: Humana Press; 2006. p. 347–55. |
| [13] |
Eusebi F, Palma E, Amici M, Miledi R. Microtransplantation of ligand-gated receptor-channels from fresh or frozen nervous tissue into Xenopus oocytes: a potent tool for expanding functional information. Prog Neurobiol 2009;88 (1):32–40. |
| [14] |
Morales A, Aleu J, Ivorra I, Ferragut JA, Gonzalez-Ros JM, Miledi R. Incorporation of reconstituted acetylcholine receptors from torpedo into the Xenopus oocyte membrane. Proc Natl Acad Sci USA 1995;92(18):8468–72. |
| [15] |
Rettinger J, Schwarz S, Schwarz W. Electrophysiology: basics, modern approaches and applications. New York: Springer International Publishing; 2016. |
| [16] |
Murenzi E, Toltin AC, Symington SB, Morgan MM, Clark JM. Evaluation of microtransplantation of rat brain neurolemma into Xenopus laevis oocytes as a technique to study the effect of neurotoxicants on endogenous voltagesensitive ion channels. Neurotoxicology 2017;60:260–73. |
| [17] |
Murenzi E, Snyder MC, Toltin AC, Symington SB, Clark JM. Permethrin mimics the action of DDT on adult rat brain neurolemma microtransplanted in Xenopus laevis oocytes. Acta Hortic 2017;1169:15–24. |
| [18] |
Symington SB, Murenzi E, Toltin AC, Lansky D, Clark JM. Realizing the potential: improving a microtransplantation assay based on neurolemmainjected Xenopus oocytes. In: Gross AD, Ozoe Y, Coats JR, editors. Advances in agrochemicals: ion channels and G-protein coupled receptors (GPCR) as targets for pest control. Washington, DC: American Chemical Society; 2017. p. 53–73. |
| [19] |
Lee SH, Yoon KS, Williamson MS, Goodson SJ, Takano-Lee M, Edman JD, et al. Molecular analysis of kdr-type resistance in permethrin-resistant strains of head lice, Pediculus capitis. Pestic Biochem Physiol 2000;66(2):130–43. |
| [20] |
Virginio C, Cherubini E. Functional expression of voltage dependent sodium channels in Xenopus oocytes injected with mRNA from neonatal or adult rat brain. Brain Res Dev Brain Res 1995;87(2):153–9. |
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