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Cell. 1987 Oct 9;51(1):21-31.

Ectopic expression of Thy-1 in the kidneys of transgenic mice induces functional and proliferative abnormalities.

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Laboratory of Gene Structure and Expression, National Institute for Medical Research, Ridgeway, Mill Hill, London, England.


Hybrid human--mouse Thy-1.1 genes were injected into pronuclei of Thy-1.2 mice to produce transgenic animals. A hybrid gene composed of the 5' part of the mouse Thy-1.1 gene combined with the 3' human untranslated regions was expressed abnormally in the kidney podocytes, which resulted in severe protein-uria and subsequent death in several founder mice. A hybrid Thy-1 gene composed of the human coding region with the 5' and 3' flanking regions of the mouse gene was expressed abnormally in a different part of the kidney (the tubular epithelia), which resulted in a proliferative kidney disorder. In addition, a neoplasm was found in the brain of one of these mice. These results show that the Thy-1 protein can play an important role in the activation, proliferation, and differentiation of many different cell types.

[Indexed for MEDLINE]

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