Pretreatment effects of jelly components on the sperm acrosome reaction and histone degradation in the starfish, Asterina pectinifera

Tosikazu Amano; Yoshihito Okita; Taei Matsui; Motonori Hoshi

doi:10.1016/S0006-291X(05)81487-1

Pretreatment effects of jelly components on the sperm acrosome reaction and histone degradation in the starfish, Asterina pectinifera

Tosikazu Amano, Yoshihito Okita, Taei Matsui, Motonori Hoshi

Faculty of Medical Technology

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

2 Citations (Scopus)

Abstract

Acrosome reaction (AR) and histone degradation (HD) of Asterina pectinifera sperm are induced by co-operation of ARIS and a diffusible fraction (M8) of egg jelly. Once sperm are treated with ARIS or M8 separately for several minutes, they do not undergo the AR in response to the egg jelly. Preincubation of sperm with M8 at 0°C is not effective to block the jelly-induced AR whereas inhibitory effects of ARIS remain at 0°C. Jelly-induced HD is inhibited by pretreatment of sperm with ARIS but is not affected by the incubation with M8. The blockage of the jelly-induced reactions, both AR and HD, by ARIS- or M8-pretreatment can be bypassed by ionophores, A23187 and monensin.

Original language	English
Pages (from-to)	268-273
Number of pages	6
Journal	Biochemical and Biophysical Research Communications
Volume	187
Issue number	1
DOIs	https://doi.org/10.1016/S0006-291X(05)81487-1
Publication status	Published - 31-08-1992

All Science Journal Classification (ASJC) codes

Biophysics
Biochemistry
Molecular Biology
Cell Biology

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10.1016/S0006-291X(05)81487-1

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abstract = "Acrosome reaction (AR) and histone degradation (HD) of Asterina pectinifera sperm are induced by co-operation of ARIS and a diffusible fraction (M8) of egg jelly. Once sperm are treated with ARIS or M8 separately for several minutes, they do not undergo the AR in response to the egg jelly. Preincubation of sperm with M8 at 0°C is not effective to block the jelly-induced AR whereas inhibitory effects of ARIS remain at 0°C. Jelly-induced HD is inhibited by pretreatment of sperm with ARIS but is not affected by the incubation with M8. The blockage of the jelly-induced reactions, both AR and HD, by ARIS- or M8-pretreatment can be bypassed by ionophores, A23187 and monensin.",

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T1 - Pretreatment effects of jelly components on the sperm acrosome reaction and histone degradation in the starfish, Asterina pectinifera

AU - Amano, Tosikazu

AU - Okita, Yoshihito

AU - Matsui, Taei

AU - Hoshi, Motonori

PY - 1992/8/31

Y1 - 1992/8/31

N2 - Acrosome reaction (AR) and histone degradation (HD) of Asterina pectinifera sperm are induced by co-operation of ARIS and a diffusible fraction (M8) of egg jelly. Once sperm are treated with ARIS or M8 separately for several minutes, they do not undergo the AR in response to the egg jelly. Preincubation of sperm with M8 at 0°C is not effective to block the jelly-induced AR whereas inhibitory effects of ARIS remain at 0°C. Jelly-induced HD is inhibited by pretreatment of sperm with ARIS but is not affected by the incubation with M8. The blockage of the jelly-induced reactions, both AR and HD, by ARIS- or M8-pretreatment can be bypassed by ionophores, A23187 and monensin.

AB - Acrosome reaction (AR) and histone degradation (HD) of Asterina pectinifera sperm are induced by co-operation of ARIS and a diffusible fraction (M8) of egg jelly. Once sperm are treated with ARIS or M8 separately for several minutes, they do not undergo the AR in response to the egg jelly. Preincubation of sperm with M8 at 0°C is not effective to block the jelly-induced AR whereas inhibitory effects of ARIS remain at 0°C. Jelly-induced HD is inhibited by pretreatment of sperm with ARIS but is not affected by the incubation with M8. The blockage of the jelly-induced reactions, both AR and HD, by ARIS- or M8-pretreatment can be bypassed by ionophores, A23187 and monensin.

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Pretreatment effects of jelly components on the sperm acrosome reaction and histone degradation in the starfish, Asterina pectinifera

Abstract

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