Electrophysiological recording from parasitic nematode muscle

Invertebrate Neuroscience - Tập 8 - Trang 167-175 - 2008
Alan P. Robertson1, Sreekanth Puttachary1, Samuel K. Buxton1, Richard J. Martin1
1Department of Biomedical Sciences, College of Veterinary Medicine, Iowa State University, Ames, USA

Tóm tắt

Infection of man and animals with parasitic nematodes is recognized as a significant global problem (McLeod in Int J Parasitol 25(11):1363–1367, 1994; Hotez et al. in N Engl J Med 357(10):1018–1027, 2007). At present control of these infections relies primarily on chemotherapy. There are a limited number of classes of anthelmintic compounds and the majority of these act on ion-channels of the parasite (Martin et al. in Parasitology 113:S137–S156, 1996). In this report, we describe electrophysiological recording techniques as applied to parasitic nematodes. The aim of this report is: (1) to promote the study of ion channels in nematodes to help further the understanding of antinematodal drug action; (2) to describe our recording equipment and experimental protocols; and (3) provide some examples of the information to be gleaned from this approach and how it can increase our understanding of these important pathogens.

Tài liệu tham khảo

Adelsberger H, Scheuer T, Dudel J (1997) A patch clamp study of a glutamatergic chloride channel on pharyngeal muscle of the nematode Ascaris suum. Neurosci Lett 230:183–186. doi:10.1016/S0304-3940(97)00512-0 Brading AF, Caldwell PC (1971) The resting membrane potential of the somatic muscle cells of Ascaris lumbricoides. J Physiol 217(3):605–624 Byerly L, Masuda MO (1979) Voltage-clamp analysis of the potassium current that produces a negative-going action potential in Ascaris muscle. J Physiol 288:263–284 Cook A, Franks CJ, Holden-Dye L (2006) Electrophysiological recordings from the pharynx. WormBook 17:1–7 Davis RE, Stretton AO (1996) The motornervous system of Ascaris electrophysiology and anatomy of the neurons and their control by neuromodulators. Parasitology 113(Suppl):S97–S117 Guest M, Bull K, Walker RJ, Amliwala K, O’Connor V, Harder A, Holden-Dye L, Hopper NA (2007) The calcium-activated potassium channel, SLO-1, is required for the action of the novel cyclo-octadepsipeptide anthelmintic, emodepside, in Caenorhabditis elegans. Int J Parasitol 37(14):1577–1588. doi:10.1016/j.ijpara.2007.05.006 Harrow ID, Gration KAF (1985) Mode of action of the anthelmitics morantel, pyrantel and levamisole in the muscle cell membrane of the nematode Ascaris suum. Pestic Sci 16:662–672. doi:10.1002/ps.2780160612 Hotez PJ, Molyneux DH, Fenwick A, Kumaresan J, Sachs SE, Sachs JD, Savioli L (2007) Control of neglected tropical diseases. N Engl J Med 357(10):1018–1027. doi:10.1056/NEJMra064142 Holden-Dye L, Walker RJ (1990) Avermectin and avermectin derivatives are antagonists at the 4-aminobutyric acid (GABA) receptor on the somatic muscle cells Ascaris—is this the site of anthelmintic action? Parasitology 101:265–271 Jarman M (1959) Electrical activity in the muscle cells of Ascaris lumbricoides. Nature 184(Suppl 16):1244. doi:10.1038/1841244a0 Kaminsky R, Ducray P, Jung M, Clover R, Rufener L, Bouvier J, Weber SS, Wenger A, Wieland-Berghausen S, Goebel T, Gauvry N, Pautrat F, Skripsky T, Froelich O, Komoin-Oka C, Westlund B, Sluder A, Mäser P (2008) A new class of anthelmintics effective against drug-resistant nematodes. Nature 452(7184):176–180 Kaplan RM (2004) Drug resistance in nematodes of veterinary importance: a status report. Trends Parasitol 20(10):477–481. doi:10.1016/j.pt.2004.08.001 Martin RJ (1982) Electrophysiological effects of piperazine and diethylcarbamazine on Ascaris suum somatic muscle. Br J Pharmacol 77:255–265 Martin RJ (1996) An electrophysiological preparation of Ascaris suum pharyngeal muscle reveals a glutamate-gated chloride channel sensitive to the avermectin analogue, milbemycin D. Parasitology 112(Pt 2):247–252 Martin RJ, Kusel JR, Pennington AJ (1990) Surface properties of membrane vesicles prepared from muscle cells of Ascaris suum. J Parasitol 76(3):340–348. doi:10.2307/3282663 Martin RJ, Valkanov MA, Dale MVE, Robertson AP, Murray I (1996) Electrophysiology of Ascaris muscle and anti-nematodal drug action. Parasitology 113:S137–S156 McLeod RS (1994) Costs of major parasites to the Australian livestock industries. Int J Parasitol 25(11):1363–1367. doi:10.1016/0020-7519(95)00071-9 Qian H, Robertson AP, Powell-Coffman JA, Martin RJ (2008) Levamisole resistance resolved at the single-channel level in Caenorhabditis elegans. FASEB J 22(9):3247–3254. doi:10.1096/fj.08-110502 Richmond JE, Jorgensen EM (1999) One GABA and two acetylcholine receptors function at the C. elegans neuromuscular junction. Nat Neurosci 2:791–797. doi:10.1038/12160 Robertson AP, Martin RJ (2007) Ion-channels on parasite muscle: pharmacology and physiology. Invert Neurosci 7(4):209–217. doi:10.1007/s10158-007-0059-x Robertson AP, Bjorn HE, Martin RJ (1999) Resistance to levamisole resolved at the single-channel level. FASEB J 13:749–760 Wolstenholme AJ, Rogers AT (2005) Glutamate-gated chloride channels and the mode of action of the avermectin/mylbemycin anthelmintics. Parasitology 131:S85–S95. doi:10.1017/S0031182005008218