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...

ey0018.5-13 | Advances in skeletal biology | ESPEYB18

5.13. SOX9 keeps growth plates and articular cartilage healthy by inhibiting chondrocyte dedifferentiation/osteoblastic redifferentiation

A Haseeb , KC Ranjan , M Angelozzij , C de Charleroy , D Rux , RJ Tower , L Yao , R Pellegrino da Silva , M Pacifici , L Qin , V Lefebvre

Proc Natl Acad Sci USA 2021 Feb 23;118(8):e2019152118. Abstract: https://pubmed.ncbi.nlm.nih.gov/33597301/In brief: Sox9 is the key transcription factor and master regulator of chondrocyte differentiation during skeletal development. This paper demonstrates that SOX9 also has a key role during postnatal life to maintain open growth plates and healthy articular cartilage by preventi...