Abstract:
:In our study, we explored the bidirectional communication via soluble factors between bone cells and endotoxin-stimulated splenic lymphocytes in an in vitro coculture model that mimics the inflammatory environment. Both the ability of lymphocytes to affect differentiation and immune properties of bone cells, osteoblasts (OBL) and osteoclasts (OCL), and of bone cells to modulate cytokine and activation profile of endotoxin-stimulated lymphocytes were tested. LPS-pulsed lymphocytes enhanced OCL but inhibited OBL differentiation and increased the RANKL/OPG ratio, and, at the same time, upregulated chemotactic properties of bone cells, specifically CCL2, CCL5, and CXCL10 in OCL and CCL5 and CXCL13 in OBL. In parallel, bone cells had immunosuppressive effects by downregulating the lymphocyte expression of interleukin (IL)-1, IL-6, TNF-α and co-stimulatory molecules. OCL stimulated the production of osteoclastogenic cytokine RANKL in T lymphocytes. The anti-inflammatory effect, especially of OBL, suggests a possible compensatory mechanism to limit the inflammatory reaction during infection.
journal_name
Inflammationjournal_title
Inflammationauthors
Cvija H,Kovacic N,Katavic V,Ivcevic S,Aguila HL,Marusic A,Grcevic Ddoi
10.1007/s10753-012-9477-ysubject
Has Abstractpub_date
2012-10-01 00:00:00pages
1618-31issue
5eissn
0360-3997issn
1573-2576journal_volume
35pub_type
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