Investigation of the Potency of Cells from the Postimplantation Mouse Embryo by Blastocyst Injection: a Preliminary Report

Overview

Journal J Embryol Exp Morphol

Specialty Anatomy & Histology

Date 1978 Dec 1

PMID 370330

Citations 13

Authors

J Rossant

R L Gardner

H L Alexandre

Affiliations

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Abstract

Chimaeric conceptuses have been produced by injection of 5 1/2-and 6 1/2-day extra-embryonic ectoderm and 5 1/2-day embryonic and extra-embryonic endoderm into 3 1/2-day mouse blastocysts. Extra-embryonic ectoderm cells contributed only to the ectoplacental cone and/or trophoblast giant cell fractions, reflecting the probable trophectoderm origin of these cells. Proximal (visceral) endoderm cells overlying both the embryonic and extra-embryonic ectoderm contributed cells only to the endoderm of the visceral yolk sac, indicating that the definitive embryonic endoderm has not formed by 5 1/2 days p.c.

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