Antillatoxin and kalkitoxin, ichthyotoxins from the tropical cyanobacterium Lyngbya majuscula, induce distinct temporal patterns of NMDA receptor-mediated neurotoxicity

F. W. Berman; W. H. Gerwick; T. F. Murray

doi:10.1016/S0041-0101(99)00108-7

Antillatoxin and kalkitoxin, ichthyotoxins from the tropical cyanobacterium Lyngbya majuscula, induce distinct temporal patterns of NMDA receptor-mediated neurotoxicity

F. W. Berman, W. H. Gerwick, T. F. Murray

Research output: Contribution to journal › Article › peer-review

68 Scopus citations

Abstract

Curacin-A, antillatoxin and kalkitoxin, natural products from the marine cyanobacterium Lyngbya majuscula, were tested for neurotoxicity in primary cultures of rat cerebellar granule neurons. Curacin-A was non-toxic, whereas antillatoxin and kalkitoxin produced concentration-dependent cytotoxicity with LC₅₀ values of 20.1±6.4 and 3.86±1.91 nM, respectively. Antillatoxin neurotoxicity was produced acutely, whereas kalkitoxin caused a delayed neurotoxic response. The cytotoxicity produced by both antillatoxin and kalkitoxin was prevented by the non-competitive NMDA receptor antagonists dextrorphan and MK-801. Copyright (C) 1999 Elsevier Science Ltd.

Original language	English (US)
Pages (from-to)	1645-1648
Number of pages	4
Journal	Toxicon
Volume	37
Issue number	11
DOIs	https://doi.org/10.1016/S0041-0101(99)00108-7
State	Published - Nov 1999
Externally published	Yes

All Science Journal Classification (ASJC) codes

Toxicology

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10.1016/S0041-0101(99)00108-7

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title = "Antillatoxin and kalkitoxin, ichthyotoxins from the tropical cyanobacterium Lyngbya majuscula, induce distinct temporal patterns of NMDA receptor-mediated neurotoxicity",

abstract = "Curacin-A, antillatoxin and kalkitoxin, natural products from the marine cyanobacterium Lyngbya majuscula, were tested for neurotoxicity in primary cultures of rat cerebellar granule neurons. Curacin-A was non-toxic, whereas antillatoxin and kalkitoxin produced concentration-dependent cytotoxicity with LC50 values of 20.1±6.4 and 3.86±1.91 nM, respectively. Antillatoxin neurotoxicity was produced acutely, whereas kalkitoxin caused a delayed neurotoxic response. The cytotoxicity produced by both antillatoxin and kalkitoxin was prevented by the non-competitive NMDA receptor antagonists dextrorphan and MK-801. Copyright (C) 1999 Elsevier Science Ltd.",

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AU - Berman, F. W.

AU - Gerwick, W. H.

AU - Murray, T. F.

PY - 1999/11

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AB - Curacin-A, antillatoxin and kalkitoxin, natural products from the marine cyanobacterium Lyngbya majuscula, were tested for neurotoxicity in primary cultures of rat cerebellar granule neurons. Curacin-A was non-toxic, whereas antillatoxin and kalkitoxin produced concentration-dependent cytotoxicity with LC50 values of 20.1±6.4 and 3.86±1.91 nM, respectively. Antillatoxin neurotoxicity was produced acutely, whereas kalkitoxin caused a delayed neurotoxic response. The cytotoxicity produced by both antillatoxin and kalkitoxin was prevented by the non-competitive NMDA receptor antagonists dextrorphan and MK-801. Copyright (C) 1999 Elsevier Science Ltd.

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