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Open Access Research article

Potential role and mechanism of IFN-gamma inducible protein-10 on receptor activator of nuclear factor kappa-B ligand (RANKL) expression in rheumatoid arthritis

Eun Young Lee1, MiRan Seo2, Yong-Sung Juhnn2, Jeong Yeon Kim1, Yoo Jin Hong1, Yun Jong Lee1, Eun Bong Lee1 and Yeong Wook Song1*

Author Affiliations

1 Division of Rheumatology, Department of Internal Medicine, Seoul National University College of Medicine, 28 Yongon-Dong, Chongno-Gu, Seoul, 110-744, Republic of Korea

2 Department of Biochemistry, Seoul National University College of Medicine, 28 Yongon-Dong, Chongno-Gu, Seoul, 110-744, Republic of Korea

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Arthritis Research & Therapy 2011, 13:R104  doi:10.1186/ar3385

Published: 27 June 2011

Additional files

Additional file 1:

Receptor activator of nuclear factor kappa-B ligand (RANKL) induction by CXCL10 in rheumatoid arthritis (RA) synoviocytes and Jurkat T cell (real-time PCR). RANKL induction by CXCL10 in RA synoviocytes (n = 3) showed high individual variation but there was an increasing tendency of RANKL expression by CXCL10 stimulation. In Jurkat T cell, CXCL10 highly increased RANKL expression.

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Additional file 2:

Effect of CXCL10 on receptor activator of nuclear factor kappa-B (RANK) expression in CD14+ mococytes (reverse transcriptase-polymerase chain reaction). CD14+ mococytes derived from healthy donor were isolated by MACS microbeads and cultured in the presence of MCSF (25 ng/mL) with or without CXCL10 (10 ng/mL or 100 ng/mL). After 24 or 48 hour, the cells were collected and then RANK expression was assessed by RT-PCR (A). Effect of CXCL10 on osteoprotegerin (OPG) production in rheumatoid arthritis (RA) synoviocytes (enzyme-linked immunosorbent assay). RA synoviocytes (n = 3) were cultured in the presence or absence of CXCL10 (10 ng/mL or 100 ng/mL) for 24 or 48 hours and then, culture media were collected for measurement of OPG.

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