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Deprecated: Implicit conversion from float 229.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Cell+Rep 2017 ; 20 (8): 1755-64 Nephropedia Template TP
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Pericytes Stimulate Oligodendrocyte Progenitor Cell Differentiation during CNS Remyelination #MMPMID28834740
De La Fuente AG; Lange S; Silva ME; Gonzalez GA; Tempfer H; van Wijngaarden P; Zhao C; Di Canio L; Trost A; Bieler L; Zaunmair P; Rotheneichner P; O?Sullivan A; Couillard-Despres S; Errea O; Mäe MA; Andrae J; He L; Keller A; Bátiz LF; Betsholtz C; Aigner L; Franklin RJ; Rivera FJ
Cell Rep 2017[Aug]; 20 (8): 1755-64 PMID28834740show ga
The role of the neurovascular niche in CNS myelin regeneration is incompletely understood. Here, we show that, upon demyelination, CNS-resident pericytes (PCs) proliferate, and parenchymal non-vessel-associated PC-like cells (PLCs) rapidly develop. During remyelination, mature oligodendrocytes were found in close proximity to PCs. In Pdgfbret/ret mice, which have reduced PC numbers, oligodendrocyte progenitor cell (OPC) differentiation was delayed, although remyelination proceeded to completion. PC-conditioned medium accelerated and enhanced OPC differentiation in vitro and increased the rate of remyelination in an ex vivo cerebellar slice model of demyelination. We identified Lama2 as a PC-derived factor that promotes OPC differentiation. Thus, the functional role of PCs is not restricted to vascular homeostasis but includes the modulation of adult CNS progenitor cells involved in regeneration.