ISSN 1662-4009 (online)

ey0016.5-15 | Basic Science - Growth Plate | ESPEYB16

5.15. mir-374-5p, mir-379-5p, and mir-503-5p Regulate Proliferation and Hypertrophic Differentiation of Growth Plate Chondrocytes in Male Rats

YH Jee , J Wang , S Yue , M Jennings , SJ Clokie , O Nilsson , JC Lui , J Baron

Abstract: Endocrinology. 2018 Mar 1;159(3):1469–1478.In brief: In this article, a combination of microdissection, miroRNA profiling and transfection studies identify 3 microRNAs that are highly expressed in the proliferative zone and appear to be down-stream mediators of PTHrP signaling in the growth plate.Comment: In the growth plate, P...

ey0020.3-13 | Translational Highlights | ESPEYB20

3.13. Loss-of-function variant in SPIN4 causes an X-linked overgrowth syndrome

JC Lui , J Wagner , E Zhou , L Dong , KM Barnes , YH Jee , J Baron

In Brief: These authors identify a frameshift truncating variant in the gene SPIN4 (Spindlin member 4) in a patient with skeletal overgrowth, hepatosplenomegaly and macrocephaly. Using state-of-the-art mouse models and histone peptide arrays, they delineate the underlying pathogenic mechanism and show that SPIN4 positively regulates Wnt signalling by functioning as an epigenetic reader.Commentary: Generalized overgrowth disorders are ch...

ey0016.5-13 | Basic Science - Growth Plate | ESPEYB16

5.13. Differential aging of growth plate cartilage underlies differences in bone length and thus helps determine skeletal proportions

JC Lui , YH Jee , P Garrison , JR Iben , S Yue , M Ad , Q Nguyen , B Kikani , Y Wakabayashi , J Baron

Abstract: PLoS Biol. 2018 Jul 23;16(7):e2005263.In brief: In this article, Lui et al, make important observations related to the fundamental limits of longitudinal bone growth implicating the growth plate senescence program as a major regulator of bone size.Comment: A person’s right and left arms almost always grow to the same length, bu...

ey0015.5-5 | New genes and gene mutations | ESPEYB15

5.5 Aggrecan Mutations in Nonfamilial Short Stature and Short Stature Without Accelerated Skeletal Maturation

C Tatsi , A Gkourogianni , K Mohnike , D DeArment , S Witchel , AC Andrade , TC Markello , J Baron , O Nilsson , YH Jee

To read the full abstract: J Endocr Soc 2017;1:1006-1011Besides its structural role in the extracellular matrix, aggrecan orchestrates a plethora of key mechanisms in endochondral ossification, such as embryonic morphogen distribution, regular indian hedgehog (IHH) / Sox9 expression and columnar chondrocyte orientation. Thus, homozygous loss-of-function mutations in the ACAN gene, encoding...