Non-invasive method to assess genotoxicity of nocodazole interfering with spindle formation in mammalian oocytes

Shen Y, Betzendahl I, Sun FY, Tinneberg HR, Eichenlaub-Ritter U (2005)
REPRODUCTIVE TOXICOLOGY 19(4): 459-471.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Autor/in
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Abstract / Bemerkung
Trisomies due to nondisjunction in oogenesis are still a major cause of genetic diseases in humans. In this study, we analysed spindle morphology of in vitro matured nocodazole-exposed mouse oocytes by novel non-invasive Polscope-microscopy, and compared images to those obtained by anti-tubulin immunofluorescence of fixed oocytes. Polscope revealed a reduction in the numbers of oocytes expressing a birefringent spindle, and alterations in spindle morphology at concentrations of nocodazole below those inducing detectable aberrations in immunofluorescence. Hyperploidy increased significantly at a concentration of 40 nM nocodazole in mouse metaphase 11 oocytes, similar to thresholds inducing nondisjunction in cultured human lymphocytes. In conclusion, Polscope represents a novel highly sensitive, non-invasive method to identify chemicals inducing severe spindle aberrations that predispose mammalian oocytes to nondisjunction. Polscope may provide information on the functionality of the spindle in experimental studies but is also compatible with clinical trials in human assisted reproduction due to its non-invasive nature. (c) 2004 Elsevier Inc. All rights reserved.
Stichworte
oocyte; meiosis; nondisjunction; trisomy; polscope; aneuploidy; nocodazole; spindle
Erscheinungsjahr
2005
Zeitschriftentitel
REPRODUCTIVE TOXICOLOGY
Band
19
Ausgabe
4
Seite(n)
459-471
ISSN
0890-6238
Page URI
https://pub.uni-bielefeld.de/record/1604527

Zitieren

Shen Y, Betzendahl I, Sun FY, Tinneberg HR, Eichenlaub-Ritter U. Non-invasive method to assess genotoxicity of nocodazole interfering with spindle formation in mammalian oocytes. REPRODUCTIVE TOXICOLOGY. 2005;19(4):459-471.
Shen, Y., Betzendahl, I., Sun, F. Y., Tinneberg, H. R., & Eichenlaub-Ritter, U. (2005). Non-invasive method to assess genotoxicity of nocodazole interfering with spindle formation in mammalian oocytes. REPRODUCTIVE TOXICOLOGY, 19(4), 459-471. doi:10.1016/j.reprotox.2004.09.007
Shen, Y., Betzendahl, I., Sun, F. Y., Tinneberg, H. R., and Eichenlaub-Ritter, U. (2005). Non-invasive method to assess genotoxicity of nocodazole interfering with spindle formation in mammalian oocytes. REPRODUCTIVE TOXICOLOGY 19, 459-471.
Shen, Y., et al., 2005. Non-invasive method to assess genotoxicity of nocodazole interfering with spindle formation in mammalian oocytes. REPRODUCTIVE TOXICOLOGY, 19(4), p 459-471.
Y. Shen, et al., “Non-invasive method to assess genotoxicity of nocodazole interfering with spindle formation in mammalian oocytes”, REPRODUCTIVE TOXICOLOGY, vol. 19, 2005, pp. 459-471.
Shen, Y., Betzendahl, I., Sun, F.Y., Tinneberg, H.R., Eichenlaub-Ritter, U.: Non-invasive method to assess genotoxicity of nocodazole interfering with spindle formation in mammalian oocytes. REPRODUCTIVE TOXICOLOGY. 19, 459-471 (2005).
Shen, Y, Betzendahl, I, Sun, FY, Tinneberg, HR, and Eichenlaub-Ritter, Ursula. “Non-invasive method to assess genotoxicity of nocodazole interfering with spindle formation in mammalian oocytes”. REPRODUCTIVE TOXICOLOGY 19.4 (2005): 459-471.

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