PMID- 23945080 OWN - NLM STAT- MEDLINE DCOM- 20150910 LR - 20211021 IS - 1478-6362 (Electronic) IS - 1478-6354 (Print) IS - 1478-6354 (Linking) VI - 15 IP - 4 DP - 2013 Aug 14 TI - Double-antiangiogenic protein DAAP targeting vascular endothelial growth factor A and angiopoietins attenuates collagen-induced arthritis. PG - R85 LID - 10.1186/ar4265 [doi] AB - INTRODUCTION: Angiogenesis plays a critical role in synovial inflammation and joint destruction in rheumatoid arthritis (RA). Vascular endothelial growth factor A (VEGF-A) and angiopoietins are two important mediators of synovial angiogenesis. We have previously developed a novel chimeric decoy receptor, namely, double-antiangiogenic protein (DAAP), which can both bind VEGF-A and angiopoietins and block their actions. This study was performed to evaluate the antiarthritic effect of DAAP and the combination effect with the tumor necrosis factor alpha (TNF-alpha) inhibitor in collagen-induced arthritis (CIA). METHODS: Recombinant DAAP, VEGF-Trap, Tie2-Fc and dimeric Fc proteins were produced and purified from CHO cells in large-scale bioreactors. CIA was induced in DBA/1 mice with type II collagen. The preventive effect of DAAP was determined and compared with other decoy receptors such as VEGF-Trap or Tie2-Fc, which block VEGF-A or angiopoietins, respectively. The clinical, radiographic, pathologic and immunohistochemical analyses were performed in CIA mice. The levels of matrix metalloprotease 3 (MMP-3) and interleukin 1beta (IL-1beta) were quantified by enzyme-linked immunosorbent assay, and receptor activator of nuclear factor kappaB ligand (RANKL) mRNA levels were measured by polymerase chain reaction. Finally, we investigated the combination effects of DAAP with a low dose of TNF-alpha decoy receptor (etanercept 10 mg/kg). RESULTS: On the basis of clinical and radiographic evaluation, DAAP had a much greater inhibitory effect than VEGF-Trap or Tie2-Fc on arthritis severity and bone destruction. These inhibitory effects were accompanied by significantly diminishing pathologic abnormalities, CD31-positive vasculature and synovial infiltration by F4/80-positive macrophages. The levels of MMP-3, IL-1beta and RANKL were much lower in the DAAP-injected group than those of the control. Furthermore, DAAP showed a therapeutic effect and a combination effect with etanercept when injected after arthritis onset in established CIA. CONCLUSIONS: DAAP has not only potent prophylactic effects on both inflammation and bone destruction but also therapeutic effects, alone and in combination with a TNF-alpha inhibitor in CIA mice. These results suggest that DAAP could be used as an effective new therapeutic agent for RA. FAU - Hah, Young-Sool AU - Hah YS FAU - Koh, Young Jun AU - Koh YJ FAU - Lim, Hye Song AU - Lim HS FAU - Kim, Hyun-Ok AU - Kim HO FAU - Cheon, Yun-Hong AU - Cheon YH FAU - Noh, Hae Sook AU - Noh HS FAU - Jang, Kyu Yun AU - Jang KY FAU - Lee, Sang Yong AU - Lee SY FAU - Lee, Gyun Min AU - Lee GM FAU - Koh, Gou Young AU - Koh GY FAU - Lee, Sang-Il AU - Lee SI LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20130814 PL - England TA - Arthritis Res Ther JT - Arthritis research & therapy JID - 101154438 RN - 0 (Angiopoietins) RN - 0 (Antirheumatic Agents) RN - 0 (Immunoglobulin G) RN - 0 (Receptors, Tumor Necrosis Factor) RN - 0 (Recombinant Proteins) RN - 0 (Vascular Endothelial Growth Factor A) RN - 0 (vascular endothelial growth factor A, mouse) RN - OP401G7OJC (Etanercept) SB - IM MH - Angiopoietins/*antagonists & inhibitors MH - Animals MH - Antirheumatic Agents/*pharmacology MH - Arthritis, Experimental MH - Arthritis, Rheumatoid/*pathology MH - Enzyme-Linked Immunosorbent Assay MH - Etanercept MH - Immunoglobulin G/pharmacology MH - Immunohistochemistry MH - Mice MH - Mice, Inbred DBA MH - Neovascularization, Pathologic/drug therapy/pathology MH - Receptors, Tumor Necrosis Factor MH - Recombinant Proteins/pharmacology MH - Reverse Transcriptase Polymerase Chain Reaction MH - Vascular Endothelial Growth Factor A/*antagonists & inhibitors PMC - PMC3978684 EDAT- 2013/08/16 06:00 MHDA- 2015/09/12 06:00 PMCR- 2013/08/14 CRDT- 2013/08/16 06:00 PHST- 2012/09/07 00:00 [received] PHST- 2013/08/14 00:00 [accepted] PHST- 2013/08/16 06:00 [entrez] PHST- 2013/08/16 06:00 [pubmed] PHST- 2015/09/12 06:00 [medline] PHST- 2013/08/14 00:00 [pmc-release] AID - ar4265 [pii] AID - 10.1186/ar4265 [doi] PST - epublish SO - Arthritis Res Ther. 2013 Aug 14;15(4):R85. doi: 10.1186/ar4265.