Nguyen et al. find that O-glycosylation
increases during liver tumor progression,
with increased expression of GALNT1
and glycosylation of ER-associated
proteins. In mouse models, expression of
GALNT1 in the ER, but not the Golgi,
accelerates tumorigenesis and increases
invasion through glycosylation
of MMP14.
Nguyen et al. find that O-glycosylation
increases during liver tumor progression,
with increased expression of GALNT1
and glycosylation of ER-associated
proteins. In mouse models, expression of
GALNT1 in the ER, but not the Golgi,
accelerates tumorigenesis and increases
invasion through glycosylation
of MMP14.