title: Human endogenous retrovirus rec interferes with germ cell development in mice and may cause carcinoma in situ, the predecessor lesion of germ cell tumors.
abstract: Germ cell tumors (GCTs) are among the most common malignancies in young men. We have previously documented that patients with GCT frequently produce serum antibodies directed against proteins encoded by human endogenous retrovirus (HERV) type K sequences. Transcripts originating from the env gene of HERV-K, including the rec-relative of human immunodeficiency virus rev, are highly expressed in GCTs. We report here that mice that inducibly express HERV-K rec show a disturbed germ cell development and may exhibit, by 19 months of age, changes reminiscent of carcinoma in situ, the predecessor lesion of classic seminoma in humans. This provides the first direct evidence that the expression of a human endogenous retroviral gene previously established as a marker in human germ cell tumors may contribute to organ-specific tumorigenesis in a transgenic mouse model.
authors.affiliation: Department of Virology, Bldg. 47, University of Saarland Medical School, 66421 Homburg/Saar, Germany.
authors.forename: Uwe M
authors.initials: UM
authors.lastname: Galli
authors.forename: Marlies
authors.initials: M
authors.lastname: Sauter
authors.forename: Bernd
authors.initials: B
authors.lastname: Lecher
authors.forename: Simone
authors.initials: S
authors.lastname: Maurer
authors.forename: Hermann
authors.initials: H
authors.lastname: Herbst
authors.forename: Klaus
authors.initials: K
authors.lastname: Roemer
authors.forename: Nikolaus
authors.initials: N
authors.lastname: Mueller-Lantzsch
mesh_terms: D017398:Alternative Splicing; D000818:Animals; D017209:Apoptosis; D015153:Blotting, Western; D002278:Carcinoma in Situ / Q000209:etiology* / Q000821:virology; D045744:Cell Line, Tumor; D020077:Endogenous Retroviruses / Q000235:genetics*; D005854:Germ Cells / Q000166:cytology*; D018237:Germinoma / Q000378:metabolism; D006801:Humans; D008297:Male; D051379:Mice; D008822:Mice, Transgenic; D008856:Microscopy, Fluorescence; D008957:Models, Genetic; D009373:Neoplasms, Germ Cell and Embryonal / Q000378:metabolism*; D017434:Protein Structure, Tertiary; D012333:RNA, Messenger / Q000378:metabolism; D020133:Reverse Transcriptase Polymerase Chain Reaction; D012671:Seminiferous Tubules / Q000378:metabolism; D013997:Time Factors; D014759:Viral Envelope Proteins / Q000378:metabolism / Q000502:physiology*
chemical_list: C485839:ERVK-6 protein, human endogenous retrovirus; D012333:RNA, Messenger; D014759:Viral Envelope Proteins