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Differentiation of mesenchymal stem cells from umbilical cord into keratinocytes: study of biology of the epidermis and perspectives for understanding the development of diseases

Grant number: 13/23245-9
Support type:Scholarships in Brazil - Master
Effective date (Start): October 01, 2014
Effective date (End): September 30, 2016
Field of knowledge:Biological Sciences - Biochemistry - Molecular Biology
Principal researcher:Mariana da Silva Araujo
Grantee:Jeniffer Farias dos Santos
Home Institution: Escola de Artes, Ciências e Humanidades (EACH). Universidade de São Paulo (USP). São Paulo , SP, Brazil


The skin is the cover of the body and isolates the organic components of the external environment. The human skin is composed, essentially, of three layers: epidermis, dermis and subcutaneous tissue. The epidermal cells, the keratinocytes, are renewed constantly, but certain pathological conditions, such psoriasis, can affect the proliferation and differentiation of these cells. Different approaches have been proposed for studying events involved in the differentiation of keratinocytes. In this context, emerges stem cells, whose potential for self renewal and ability to generate distinct cell lines with different functions have allowed therapeutic applications of these cells, in addition to the study of biological processes. An important source of stem cells is the human umbilical cord blood (hUCB), formed by hematopoietic and non hematopoietic (mesenchymal) components. The isolation of these cells involves a safe and simple procedure. Considering that epidermal stem cells are the complex obtaining and the isolation procedure gives low yields, we are interested in evaluating the potential of differentiation of mesenchymal stem cells from hUCB into keratinocytes, and to study some molecular events involved this process such as the expression of epidermal cells markers (p63, cytokeratin 5 and 10), and the expression and activity of different proteases as the tissue kallikreins 5, 6 and 7. The development of protocols for differentiation of stem cells into keratinocytes may provide useful tools for studying the biology of skin using in vitro models opening the perspectives to the understanding of pathological conditions.

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
DOS SANTOS, JENIFFER FARIAS; BORCARI, NATHALIA RUDER; ARAUJO, MARIANA DA SILVA; NUNES, VIVIANE ABREU. Mesenchymal stem cells differentiate into keratinocytes and express epidermal kallikreins: Towards an in vitro model of human epidermis. Journal of Cellular Biochemistry, v. 120, n. 8, p. 13141-13155, AUG 2019. Web of Science Citations: 1.

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