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J Exp Med. 1988 Jan 1;167(1):213-8.

Characterization of a 280-kD protein restricted to the coated pits of the renal brush border and the epithelial cells of the yolk sac. Teratogenic effect of the specific monoclonal antibodies.

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1
Institut National de la Santé et de la Recherche Médicale, Unité 64, Paris, France.

Abstract

Intermicrovillar areas and apical vesicles characterized by an extensive clathrin coat can be identified in some epithelial cell types. We describe a 280-kD protein, characteristic of these areas in the proximal tubule brush border and epithelial cells of the visceral yolk sac. When injected to 9-d pregnant rats, mAbs to the 280-kD protein regularly induced fetal resorption and/or malformations. Antibodies to a 330-kD protein that is also coated-pit-restricted had no effect. Our observations point to a key function for p280 and suggest that immunity to specific constituents of the receptor-mediated endocytotic system may be involved in the induction of fetal abnormalities.

PMID:
2891781
PMCID:
PMC2188808
[Indexed for MEDLINE]
Free PMC Article
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