We are using live imaging, transgenic reporters
of osteoblast gene expression and targeted RNAseq approaches to identify the molecular regulators of progressive osteoblast differentiation during expansion of the skull.
Not exact matches
Downstream
of the signaling system, Runx2 overexpression led to overexpression
of bone - related
genes, including
genes expressed by
osteoblasts, osteoclasts and osteocytes.
To find out how, he turned to an engineered strain
of mice lacking a
gene for what was then a mysterious protein called osteocalcin, which is produced by
osteoblasts.
We show that expression
of clock
genes in
osteoblasts is regulated by the sympathetic nervous system and leptin.
To investigate the underlying mechanisms, we undertook (1) bioinformatic, functional genomic annotation and human
osteoblast expression studies; (2)
gene - function prediction; (3) skeletal phenotyping
of 120 knockout mice with deletions
of genes adjacent to lead independent SNPs; and (4) analysis
of gene expression in mouse
osteoblasts, osteocytes and osteoclasts.
Studies showed that curcumin reduced joint swelling by modifying
gene expression; inhibited inflammation by regulating NF - κB, a pro-inflammatory protein; and slowed down joint destruction by decreasing activity
of osteoblasts, cells involved in bone breakdown.