alexa Bone marrow transplantation restores epidermal basement membrane protein expression and rescues epidermolysis bullosa model mice.

Author(s): Fujita Y, Abe R, Inokuma D, Sasaki M, Hoshina D,

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Abstract Attempts to treat congenital protein deficiencies using bone marrow-derived cells have been reported. These efforts have been based on the concepts of stem cell plasticity. However, it is considered more difficult to restore structural proteins than to restore secretory enzymes. This study aims to clarify whether bone marrow transplantation (BMT) treatment can rescue epidermolysis bullosa (EB) caused by defects in keratinocyte structural proteins. BMT treatment of adult collagen XVII (Col17) knockout mice induced donor-derived keratinocytes and Col17 expression associated with the recovery of hemidesmosomal structure and better skin manifestations, as well improving the survival rate. Both hematopoietic and mesenchymal stem cells have the potential to produce Col17 in the BMT treatment model. Furthermore, human cord blood CD34(+) cells also differentiated into keratinocytes and expressed human skin component proteins in transplanted immunocompromised (NOD/SCID/gamma(c)(null)) mice. The current conventional BMT techniques have significant potential as a systemic therapeutic approach for the treatment of human EB.
This article was published in Proc Natl Acad Sci U S A and referenced in

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