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Virology. 1993 Oct;196(2):905-9.

The human endogenous retrovirus ERV-3 is upregulated in differentiating placental trophoblast cells.

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  • 1Chester Beatty Laboratories, Institute of Cancer Research, London, United Kingdom.

Abstract

The single copy endogenous retrovirus locus ERV-3 is known to be primarily expressed in the placenta. The absence of expression of this gene in choriocarcinoma cell lines has led to speculation that this may be a defect associated with this abnormality. We show here that ERV-3 is not normally expressed in the cytotrophoblast from which these tumour cells are derived but is expressed in normal syncytiotrophoblast. The conservation of the ERV-3 open reading frame for env in ape and old world monkey species and its tight regulation and site of expression suggest a functional role for this gene in this tissue.

PMID:
8372456
[PubMed - indexed for MEDLINE]
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