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  • Ohlsson, Claes,1965Gothenburg University,Göteborgs universitet,Centre for Bone and Arthritis Research,Institutionen för medicin, avdelningen för invärtesmedicin och klinisk nutrition,Institute of Medicine, Department of Internal Medicine and Clinical Nutrition (author)

Inducible Wnt16 inactivation: WNT16 regulates cortical bone thickness in adult mice.

  • Article/chapterEnglish2018

Publisher, publication year, extent ...

  • 2018

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  • LIBRIS-ID:oai:gup.ub.gu.se/274879
  • https://gup.ub.gu.se/publication/274879URI
  • https://doi.org/10.1530/JOE-18-0020DOI

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  • Language:English

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

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  • Substantial progress has been made in the therapeutic reduction of vertebral fracture risk in patients with osteoporosis, but non-vertebral fracture risk has been improved only marginally. Human genetic studies demonstrate that the WNT16 locus is a major determinant of cortical bone thickness and non-vertebral fracture risk and mouse models with life-long Wnt16 inactivation revealed that WNT16 is a key regulator of cortical thickness. These studies, however, could not exclude that the effect of Wnt16 inactivation on cortical thickness might be caused by early developmental and/or growth effects. To determine the effect of WNT16 specifically on adult cortical bone homeostasis, Wnt16 was conditionally ablated in young adult and old mice through tamoxifen-inducible Cre-mediated recombination using CAG-Cre-ER; Wnt16flox/flox (Cre-Wnt16flox/flox) mice. First, 10-week-old Cre-Wnt16flox/flox and Wnt16flox/flox littermate control mice were treated with tamoxifen. Four weeks later, Wnt16 mRNA levels in cortical bone were reduced and cortical thickness in femur was decreased in Cre-Wnt16flox/flox mice compared to Wnt16flox/flox mice. Then, inactivation of Wnt16 in 47-week-old mice (evaluated four weeks later) resulted in a reduction of Wnt16 mRNA levels, cortical thickness and cortical bone strength with no effect on trabecular bone volume fraction. Mechanistic studies demonstrated that the reduced cortical bone thickness was caused by a combination of increased bone resorption and reduced periosteal bone formation. In conclusion, WNT16 is a crucial regulator of cortical bone thickness in young adult and old mice. We propose that new treatment strategies targeting the adult regulation of WNT16 might be useful to reduce fracture risk at cortical bone sites.

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  • Henning, Petra,1974Gothenburg University,Göteborgs universitet,Centre for Bone and Arthritis Research,Institutionen för medicin, avdelningen för invärtesmedicin och klinisk nutrition,Institute of Medicine, Department of Internal Medicine and Clinical Nutrition(Swepub:gu)xhenpe (author)
  • Nilsson, Karin H.Gothenburg University,Göteborgs universitet,Centre for Bone and Arthritis Research,Institutionen för medicin, avdelningen för invärtesmedicin och klinisk nutrition,Institute of Medicine, Department of Internal Medicine and Clinical Nutrition(Swepub:gu)xnkarl (author)
  • Wu, JianyaoGothenburg University,Göteborgs universitet,Centre for Bone and Arthritis Research,Institutionen för medicin, avdelningen för invärtesmedicin och klinisk nutrition,Institute of Medicine, Department of Internal Medicine and Clinical Nutrition(Swepub:gu)xwujio (author)
  • Gustafsson, Karin L.,1987Gothenburg University,Göteborgs universitet,Centre for Bone and Arthritis Research,Institutionen för medicin, avdelningen för invärtesmedicin och klinisk nutrition,Institute of Medicine, Department of Internal Medicine and Clinical Nutrition(Swepub:gu)xgukab (author)
  • Sjögren, Klara,1970Gothenburg University,Göteborgs universitet,Centre for Bone and Arthritis Research,Institutionen för medicin, avdelningen för invärtesmedicin och klinisk nutrition,Institute of Medicine, Department of Internal Medicine and Clinical Nutrition(Swepub:gu)xsjokl (author)
  • Törnqvist, Anna EGothenburg University,Göteborgs universitet,Centre for Bone and Arthritis Research,Institutionen för medicin, avdelningen för invärtesmedicin och klinisk nutrition,Institute of Medicine, Department of Internal Medicine and Clinical Nutrition(Swepub:gu)xbannf (author)
  • Koskela, Antti (author)
  • Zhang, Fu-Ping (author)
  • Lagerquist, MarieGothenburg University,Göteborgs universitet,Institutionen för medicin, avdelningen för invärtesmedicin och klinisk nutrition,Centre for Bone and Arthritis Research,Institute of Medicine, Department of Internal Medicine and Clinical Nutrition(Swepub:gu)xlmarv (author)
  • Poutanen, MattiGothenburg University,Göteborgs universitet,Centre for Bone and Arthritis Research,Institutionen för medicin, avdelningen för invärtesmedicin och klinisk nutrition,Institute of Medicine, Department of Internal Medicine and Clinical Nutrition(Swepub:gu)xpouma (author)
  • Tuukkanen, Juha (author)
  • Lerner, Ulf HGothenburg University,Göteborgs universitet,Centre for Bone and Arthritis Research,Institutionen för medicin, avdelningen för invärtesmedicin och klinisk nutrition,Institute of Medicine, Department of Internal Medicine and Clinical Nutrition(Swepub:gu)xlerul (author)
  • Movérare-Skrtic, SofiaGothenburg University,Göteborgs universitet,Institutionen för medicin, avdelningen för invärtesmedicin och klinisk nutrition,Centre for Bone and Arthritis Research,Institute of Medicine, Department of Internal Medicine and Clinical Nutrition(Swepub:gu)xmovso (author)
  • Göteborgs universitetCentre for Bone and Arthritis Research (creator_code:org_t)

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