Conditional mesenchymal disruption of pkd1 results in osteopenia and polycystic kidney disease.

ABSTRACT: Conditional deletion of Pkd1 in osteoblasts using either Osteocalcin(Oc)-Cre or Dmp1-Cre results in defective osteoblast-mediated postnatal bone formation and osteopenia. Pkd1 is also expressed in undifferentiated mesenchyme that gives rise to the osteoblast lineage. To examine the effects of Pkd1 on prenatal osteoblast development, we crossed Pkd1(flox/flox) and Col1a1(3.6)-Cre mice, which has been used to achieve selective inactivation of Pkd1 earlier in the osteoblast lineage. Control Pkd1(flox/flox) and Pkd1(flox/+), heterozygous Col1a1(3.6)-Cre;Pkd1(flox/+) and Pkd1(flox/null), and homozygous Col1a1(3.6)-Cre;Pkd1(flox/flox) and Col1a1(3.6)-Cre;Pkd1(flox/null) mice were analyzed at ages ranging from E14.5 to 8-weeks-old. Newborn Col1a1(3.6)-Cre;Pkd1(flox/null) mice exhibited defective

SUBMITTER: Qiu N 

PROVIDER: S-EPMC3448720 | biostudies-literature | 2012

REPOSITORIES: biostudies-literature