ISSN 1662-4009 (online)

ey0019.5-12 | Translational highlights | ESPEYB19

5.12. Premature growth plate closure caused by a hedgehog cancer drug is preventable by co-administration of a retinoid antagonist in mice

E Koyama , C Mundy , C Saunders , J Chung , SE Catheline , D Rux , M Iwamoto , M Pacifici

J Bone Miner Res 36, 1387–1402. (2021)Abstract: https://pubmed-ncbi-nlm-nih-gov/33724538/In brief: Premature growth plate closure under anti-hedgehog treatment is caused by impaired retinoic acid metabolism in growth plate progenitor cells. In this mouse model, administration of retinoic acid receptor blockers rescued the phenotype and normalized growth plate maturation.<p class="a...

ey0020.3-17 | Advances in Growth, Bone Biology, and Mineral Metabolism | ESPEYB20

3.17. Nutrient-regulated dynamics of chondroprogenitors in the postnatal murine growth plate

T Oichi , J Kodama , K Wilson , H Tian , Y Imamura Kawasawa , Y Usami , Y Oshima , T Saito , S Tanaka , M Iwamoto , S Otsuru , M Enomoto-Iwamoto

In Brief: The authors use cell-tracing of Axin2-positive chondroprogenitor cells in the resting zone during and after food restriction to demonstrate that nutrient availability influences the balance between accumulation and differentiation of resting zone chondrocytes and that this is influenced by Igf-1.Commentary: Catch-up growth is the rapid growth that occurs after growth-inhibiting conditions have been cured or removed. The molecular mechanism for ...