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Research

Many skeletal diseases are largely associated with or caused by inflammation. However, the underlying mechanisms are far from understood. Our lab studies osteoimmunology, an interdisciplinary field linking bone biology and the immune system, focusing on inflammatory regulation of gene expression and signaling in macrophage differentiation to osteoclasts (see the
model of a new molecular regulatory network we recently identified), adipogenesis, skeletal damage and repair involved in disease (such as osteoporosis and inflammatory arthritis). We equip genetic approaches (knockout and transgenic mice), primary cells (for example,
bone marrow cells and PBMCs), a combination
of molecular and cellular methods, various
next-generation techniques (RNAseq,
ATACseq, ChIPseq, scRNAseq), multi-omics
approaches, and disease models (such as RA,
osteoporosis, fracture, high fat diet-induced
obesity/type-2 diabetes mouse models). We
work extensively on signal transduction and
crosstalk, genetic and epigenetic regulation of
gene transcription and function, cell
differentiation and in vivo bone remodeling and
metabolism. We are dedicated to advancing
scientific knowledge addressing how the
immune system regulates the skeleton and
identifying novel therapeutic targets for

improving musculoskeletal diseases

associated with inflammation.

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Research Areas

  • Identification of distinct molecular mechanisms between inflammatory and physiological osteoclastogenesis from monocyte/macrophage lineage

  1. Intrinsic inhibitory mechanisms of osteoclast differentiation by TNF

  2. Reprogramming of macrophage response to TNF by TGFβ signaling

  • Regulation of inflammatory bone remodeling by:

  1. signaling pathways (TNF, IFN, Notch/RBP-J, Def6)

  2. genome-wide epigenetic and transcriptional regulation of gene expression and function

  3. noncoding RNAs (miRNAs and long non-coding RNAs)

  • Cross talk between bone and bone marrow adipose, and differential regulation of peripheral and bone marrow adiposity

  • Discovery of new bone marrow hematopoietic and non-hematopoietic progenitor populations in regulation of skeleton

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