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2015 ; 4
(4
): 685-98
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Direct reprogramming of human bone marrow stromal cells into functional renal
cells using cell-free extracts
#MMPMID25754206
Papadimou E
; Morigi M
; Iatropoulos P
; Xinaris C
; Tomasoni S
; Benedetti V
; Longaretti L
; Rota C
; Todeschini M
; Rizzo P
; Introna M
; Grazia de Simoni M
; Remuzzi G
; Goligorsky MS
; Benigni A
Stem Cell Reports
2015[Apr]; 4
(4
): 685-98
PMID25754206
show ga
The application of cell-based therapies in regenerative medicine is gaining
recognition. Here, we show that human bone marrow stromal cells (BMSCs), also
known as bone-marrow-derived mesenchymal cells, can be reprogrammed into renal
proximal tubular-like epithelial cells using cell-free extracts.
Streptolysin-O-permeabilized BMSCs exposed to HK2-cell extracts underwent
morphological changes-formation of "domes" and tubule-like structures-and
acquired epithelial functional properties such as transepithelial-resistance,
albumin-binding, and uptake and specific markers E-cadherin and aquaporin-1.
Transmission electron microscopy revealed the presence of brush border microvilli
and tight intercellular contacts. RNA sequencing showed tubular epithelial
transcript abundance and revealed the upregulation of components of the EGFR
pathway. Reprogrammed BMSCs integrated into self-forming kidney tissue and formed
tubular structures. Reprogrammed BMSCs infused in immunodeficient mice with
cisplatin-induced acute kidney injury engrafted into proximal tubuli, reduced
renal injury and improved function. Thus, reprogrammed BMSCs are a promising cell
resource for future cell therapy.