ISSN 1662-4009 (online)

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Yearbook of Paediatric Endocrinology 2020

5. Bone, Growth Plate and Mineral Metabolism

Advances in Skeletal Biology

ey0017.5-12 | Advances in Skeletal Biology | ESPEYB17

5.12. Lipid availability determines fate of skeletal progenitor cells via SOX9

N van Gastel , S Stegen , G Eelen , S Schoors , A Carlier , VW Daniels , N Baryawno , D Przybylski , M Depypere , PJ Stiers , D Lambrechts , R Van Looveren , S Torrekens , A Sharda , P Agostinis , D Lambrechts , F Maes , JV Swinnen , L Geris , H Van Oosterwyck , B Thienpont , P Carmeliet , DT Scadden , G Carmeliet

To read the full abstract: Nature 2020;579:111–117.In brief: In large fracture calluses, skeletal progenitors activate the chondrogenesis program, whereas in smaller calluses, direct osteogenesis is the preferred path. Here, the authors show that lipid availability determines whether skeletal stem cells repair a fracture through endochondral bone formation or direct ossificati...

ey0017.5-13 | Advances in Skeletal Biology | ESPEYB17

5.13. Perivascular osteoprogenitors are associated with transcortical channels of long bones

SH Root , NKY Wee , S Novak , CJ Rosen , R Baron , BG Matthews , I Kalajzic

To read the full abstract: Stem Cells, 2020;38(6):769–781.In brief: A novel population of osteoprogenitor cells in proximity to transcortical channels is found to persist during skeletal maturation. These migrate, expand and contribute to bone formation.Commentary: Bone formation and regeneration requires multiple distinct populations of progeni...

ey0017.5-14 | Advances in Skeletal Biology | ESPEYB17

5.14. Growth plate borderline chondrocytes behave as transient mesenchymal precursor cells

K Mizuhashi , M Nagata , Y Matsushita , W Ono , N Ono

To read the full abstract: J Bone Miner Res 2019;34(8):1387–1392.In brief: Cell tracing of the growth plate chondrocytes most adjacent to the perichondrium demonstrate that they transit into the metaphysis and contribute to the pool osteoblasts and reticular stromal cells of the bone marrow during growth in young mice.Commentary: Borderline chondrocytes are the growth plate chondrocytes located as a ...

ey0017.5-15 | Advances in Skeletal Biology | ESPEYB17

5.15. A simple method based on confocal microscopy and thick sections recognizes seven subphases in growth plate chondrocytes

A Fernandez-Iglesias , R Fuente , H Gil-Pena , L Alonso-Duran , M Garcia-Bengoa , F et al. Santos

To read the full abstract: Sci Rep 2020;10:6935.In brief: A well-defined and optimized protocol using confocal microscopy allowed novel insight into growth plate chondrocyte differentiation by quantitative analysis of cellular characteristics of murine growth plate samples.Commentary: The growth plate is a complex tissue with a unique morphology char...