Nuclear envelope dynamics during male pronuclear development.

D Poccia; P Collas

doi:10.1046/j.1440-169x.1997.t01-4-00001.x

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Nuclear envelope dynamics during male pronuclear development.

D Poccia·P Collas

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Abstract

Upon fertilization, the sperm nucleus undergoes reactivation. The poreless sperm nuclear envelope is replaced by a functional male pronuclear envelope and the highly compact male chromatin decondenses. Here some recent evidence is examined: that disassembly of the sperm lamina is required for chromatin decondensation, that remnant portions of the sperm nuclear envelope target the binding of egg membrane vesicles that form the male pronuclear envelope, that functional male pronuclear envelopes containing lamin B receptor assemble prior to lamin import and lamina formation, and that lamina assembly drives male pronuclear swelling. Several unresolved issues are discussed.

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Animals Chromatin Fertilization Fluorescent Dyes Lamin Type B Lamins Male Membrane Fusion Nuclear Envelope Nuclear Proteins Receptors, Cytoplasmic and Nuclear Spermatozoa Lamin B Receptor Journal Article Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S.Review

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D Poccia, P Collas. 1997. Nuclear envelope dynamics during male pronuclear development.. https://doi.org/10.1046/j.1440-169x.1997.t01-4-00001.x

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