The role of intermediate filaments in early Xenopus development studied by antisense depletion of maternal mRNA

The effects of depleting a maternal cytokeratin mRNA on the developing embryo are described. Cytokeratins are members of the intermediate filament family of cytoskeletal proteins, and are expressed in a cortical network of the superficial cytoplasm of the oocyte. After fertilisation, a new cortical network is built up, which comes to occupy only the most superficial cells of the blastula. The maternal cytokeratin mRNA is abundantly translated, both during oogenesis, and during oocyte maturation and after fertilisation. Depletion of the mRNA results in depletion of the cortical filaments at the blastula stage and leads to gastrulation abnormalities. We discuss the various possible control experiments required for antisense oligo depletion studies and the implications of these results for cytokeratin function.

Medienart:

Artikel

Erscheinungsjahr:

1992

Erschienen:

1992

Enthalten in:

Zur Gesamtaufnahme - year:1992

Enthalten in:

Development (Cambridge, England). Supplement - (1992) vom: 01., Seite 119-25

Sprache:

Englisch

Beteiligte Personen:

Heasman, J [VerfasserIn]
Torpey, N [VerfasserIn]
Wylie, C [VerfasserIn]

Themen:

68238-35-7
Journal Article
Keratins
Oligonucleotides, Antisense
RNA, Messenger
Research Support, Non-U.S. Gov't

Anmerkungen:

Date Completed 20.05.1993

Date Revised 25.08.2010

published: Print

Citation Status MEDLINE

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM012649392