Analysis of a Mouse Skin Model of Tuberous Sclerosis Complex

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Analysis of a Mouse Skin Model of Tuberous Sclerosis Complex

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Title: Analysis of a Mouse Skin Model of Tuberous Sclerosis Complex
Author: Guo, Yanan; Dreier, John R.; Cao, Juxiang; Du, Heng; Granter, Scott R.; Kwiatkowski, David J.

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Citation: Guo, Yanan, John R. Dreier, Juxiang Cao, Heng Du, Scott R. Granter, and David J. Kwiatkowski. 2016. “Analysis of a Mouse Skin Model of Tuberous Sclerosis Complex.” PLoS ONE 11 (12): e0167384. doi:10.1371/journal.pone.0167384.
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Abstract: Tuberous Sclerosis Complex (TSC) is an autosomal dominant tumor suppressor gene syndrome in which patients develop several types of tumors, including facial angiofibroma, subungual fibroma, Shagreen patch, angiomyolipomas, and lymphangioleiomyomatosis. It is due to inactivating mutations in TSC1 or TSC2. We sought to generate a mouse model of one or more of these tumor types by targeting deletion of the Tsc1 gene to fibroblasts using the Fsp-Cre allele. Mutant, Tsc1ccFsp-Cre+ mice survived a median of nearly a year, and developed tumors in multiple sites but did not develop angiomyolipoma or lymphangioleiomyomatosis. They did develop a prominent skin phenotype with marked thickening of the dermis with accumulation of mast cells, that was minimally responsive to systemic rapamycin therapy, and was quite different from the pathology seen in human TSC skin lesions. Recombination and loss of Tsc1 was demonstrated in skin fibroblasts in vivo and in cultured skin fibroblasts. Loss of Tsc1 in fibroblasts in mice does not lead to a model of angiomyolipoma or lymphangioleiomyomatosis.
Published Version: doi:10.1371/journal.pone.0167384
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