摘要
Mice carrying Collagen2a1-cre-mediated deletions of Lrp5 and/or Lrp6 were created and characterized.Mice lacking either gene alone were viable and fertile with normal knee morphology.Mice in which both Lrp5 and Lrp6 were conditionally ablated via Collagen2al-cre-mediated deletion displayed severe defects in skeletal development during embryogenesis.In addition,adult mice carrying Collagen2al-cre-mediated deletions of Lrp5 and/or Lrp6 displayed low bone mass suggesting that the Collagen2a1-cre transgene was active in cells that subsequently differentiated into osteoblasts.In both embryonic skeletal development and establishment of adult bone mass,Lrp5 and Lrp6 carry out redundant functions.
Mice carrying Collagen2a1-cre-mediated deletions of Lrp5 and/or Lrp6 were created and characterized.Mice lacking either gene alone were viable and fertile with normal knee morphology.Mice in which both Lrp5 and Lrp6 were conditionally ablated via Collagen2al-cre-mediated deletion displayed severe defects in skeletal development during embryogenesis.In addition,adult mice carrying Collagen2al-cre-mediated deletions of Lrp5 and/or Lrp6 displayed low bone mass suggesting that the Collagen2a1-cre transgene was active in cells that subsequently differentiated into osteoblasts.In both embryonic skeletal development and establishment of adult bone mass,Lrp5 and Lrp6 carry out redundant functions.
基金
supported by the Van Andel Research Institute
NIH/NIAMS R01 grant AR053293 to BOW
