APC and Stroke: Consistent with our previous results [30], the present data show that the numbers of APC+-OLs and PDGFRα+-OPCs as well as APC+/BrdU+-OLs and PDGFRα+/BrdU+-OPCs in the IBZ of ipsilateral brain in ABCA1-B/-B vehicle stroke mice significantly decreased compared with those in ABCA1fl/fl vehicle stroke mice.