PMID- 32046264 OWN - NLM STAT- MEDLINE DCOM- 20200914 LR - 20200914 IS - 1422-0067 (Electronic) IS - 1422-0067 (Linking) VI - 21 IP - 3 DP - 2020 Feb 8 TI - IL-33 Inhibits TNF-alpha-Induced Osteoclastogenesis and Bone Resorption. LID - 10.3390/ijms21031130 [doi] LID - 1130 AB - Interleukin (IL)-33 is a member of the IL-1 family, which acts as an alarmin. Several studies suggested that IL-33 inhibited osteoclastogenesis and bone resorption. Tumor necrosis factor-alpha (TNF-alpha) is considered a direct inducer of osteoclastogenesis. However, there has been no report regarding the effect of IL-33 on TNF-alpha-induced osteoclastogenesis and bone resorption. The objective of this study is to investigate the role of IL-33 on TNF-alpha-induced osteoclastogenesis and bone resorption. In an in vitro analysis of osteoclastogenesis, osteoclast precursors, which were derived from bone marrow cells, were treated with or without IL-33 in the presence of TNF-alpha. Tartrate-resistant acid phosphatase (TRAP) staining solution was used to assess osteoclast formation. In an in vivo analysis of mouse calvariae, TNF-alpha with or without IL-33 was subcutaneously administrated into the supracalvarial region of mice daily for 5 days. Histological sections were stained for TRAP, and osteoclast numbers were determined. Using micro-CT reconstruction images, the ratio of bone destruction area on the calvariae was evaluated. The number of TRAP-positive cells induced by TNF-alpha was significantly decreased with IL-33 in vitro and in vivo. Bone resorption was also reduced. IL-33 inhibited IkappaB phosphorylation and NF-kappaB nuclear translocation. These results suggest that IL-33 inhibited TNF-alpha-induced osteoclastogenesis and bone resorption. FAU - Ohori, Fumitoshi AU - Ohori F AD - Division of Orthodontics and Dentofacial Orthopedics, Tohoku University Graduate School of Dentistry, 4-1, Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan. FAU - Kitaura, Hideki AU - Kitaura H AD - Division of Orthodontics and Dentofacial Orthopedics, Tohoku University Graduate School of Dentistry, 4-1, Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan. FAU - Ogawa, Saika AU - Ogawa S AD - Division of Orthodontics and Dentofacial Orthopedics, Tohoku University Graduate School of Dentistry, 4-1, Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan. FAU - Shen, Wei-Ren AU - Shen WR AD - Division of Orthodontics and Dentofacial Orthopedics, Tohoku University Graduate School of Dentistry, 4-1, Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan. FAU - Qi, Jiawei AU - Qi J AD - Division of Orthodontics and Dentofacial Orthopedics, Tohoku University Graduate School of Dentistry, 4-1, Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan. FAU - Noguchi, Takahiro AU - Noguchi T AD - Division of Orthodontics and Dentofacial Orthopedics, Tohoku University Graduate School of Dentistry, 4-1, Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan. FAU - Marahleh, Aseel AU - Marahleh A AD - Division of Orthodontics and Dentofacial Orthopedics, Tohoku University Graduate School of Dentistry, 4-1, Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan. FAU - Nara, Yasuhiko AU - Nara Y AD - Division of Orthodontics and Dentofacial Orthopedics, Tohoku University Graduate School of Dentistry, 4-1, Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan. FAU - Pramusita, Adya AU - Pramusita A AD - Division of Orthodontics and Dentofacial Orthopedics, Tohoku University Graduate School of Dentistry, 4-1, Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan. FAU - Mizoguchi, Itaru AU - Mizoguchi I AD - Division of Orthodontics and Dentofacial Orthopedics, Tohoku University Graduate School of Dentistry, 4-1, Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan. LA - eng GR - 16K11776/Japan Society for the Promotion of Science/ GR - 19K10397/Japan Society for the Promotion of Science/ GR - 18K09862/Japan Society for the Promotion of Science/ PT - Journal Article DEP - 20200208 PL - Switzerland TA - Int J Mol Sci JT - International journal of molecular sciences JID - 101092791 RN - 0 (Interleukin-33) RN - 0 (NF-kappa B) RN - 0 (Tumor Necrosis Factor-alpha) SB - IM MH - Animals MH - Bone Resorption/*chemically induced/*drug therapy MH - Fluorescent Antibody Technique MH - Immunoblotting MH - Interleukin-33/*pharmacology/*therapeutic use MH - Male MH - Mice MH - Mice, Inbred C57BL MH - NF-kappa B/metabolism MH - Osteoclasts/*cytology/*drug effects/metabolism MH - Osteogenesis/*drug effects MH - Phosphorylation/drug effects MH - Real-Time Polymerase Chain Reaction MH - Reverse Transcriptase Polymerase Chain Reaction MH - Tumor Necrosis Factor-alpha/*pharmacology PMC - PMC7038169 OTO - NOTNLM OT - IL-33 OT - TNF-alpha OT - osteoclast OT - osteoclastogenesis COIS- The authors declare no conflict of interest. EDAT- 2020/02/13 06:00 MHDA- 2020/09/15 06:00 PMCR- 2020/02/01 CRDT- 2020/02/13 06:00 PHST- 2019/12/25 00:00 [received] PHST- 2020/02/03 00:00 [revised] PHST- 2020/02/05 00:00 [accepted] PHST- 2020/02/13 06:00 [entrez] PHST- 2020/02/13 06:00 [pubmed] PHST- 2020/09/15 06:00 [medline] PHST- 2020/02/01 00:00 [pmc-release] AID - ijms21031130 [pii] AID - ijms-21-01130 [pii] AID - 10.3390/ijms21031130 [doi] PST - epublish SO - Int J Mol Sci. 2020 Feb 8;21(3):1130. doi: 10.3390/ijms21031130.