of mitochondrial and metabolic genes could seemingly explain
the maladaptive effects of failure to repress MeCP2 after
TAC, at least in part.
Using an interesting new technique to isolate myocyte nuclei
from cardiac tissue, involving an antibody to pericentriolar
material 1 (PCM1), the team found that DNA methylation
was not altered appreciably in WT mice with TAC, but that
MeCP2 binding to methylated DNA was reduced, concomitant
with the reduction in MeCP2 levels. Finally, immunoprecipitation
in NRVMs suggested that MeCP2 interacted with
HDAC1, a type I HDAC.
Overall, this prodigious study, reflecting the efforts of an
impressive 29 coauthors, provided good evidence for a novel
pathway of sympathetic cardioprotection in pressure-overload
HF, as illustrated in the Figure