Targeted disruption of the murine tissue factor gene results in embryonic lethality

John R. Toomey, Kenneth E. Kratzer, Nina M. Lasky, Jeffrey J. Stanton, George J. Broze

Research output: Contribution to journalArticlepeer-review

238 Scopus citations

Abstract

Tissue factor (TF) is an integral membrane glycoprotein that is believed to be the physiologic initiator of the blood coagulation cascade. Disruption of the mouse tissue factor gene leads to embryonic lethality between days E9.5-E11.5 of gestation. On E9.5, TF(-/-) embryos appear indistinguishable from their TF(+/+) and TF(+/-) littermates. By E10.5, TF(-/-) embryos are severely growth retarded, appear nearly bloodless, and are in most cases dead. Initial observations suggest that TF(-/-) embryos are dying of circulatory failure. Approximately 15% of the TF(-/-) embryos survive beyond E10.5, but none complete gestation. Heterozygotes appear normal and free of bleeding complications.

Original languageEnglish
Pages (from-to)1583-1587
Number of pages5
JournalBlood
Volume88
Issue number5
DOIs
StatePublished - Sep 1 1996

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