IL-6 Reduces Spheroid Sizes of Osteophytic Cells Derived from Osteoarthritis Knee Joint via Induction of Apoptosis

被引:3
作者
Negishi, Yoshifumi [1 ,2 ]
Adili, Arepati [1 ,2 ,4 ]
de Vega, Susana [1 ]
Momoeda, Masahiro [1 ,2 ]
Kaneko, Haruka [2 ]
Cilek, Mehmet Z. [1 ,4 ]
Yoshinaga, Chiho [1 ]
Takafuji, Kazuaki [5 ]
Otsuka, Yuta [7 ]
Shimoda, Masayuki [6 ,7 ]
Negishi-Koga, Takako [1 ,2 ,3 ,8 ]
Ishijima, Muneaki [1 ,2 ,3 ,4 ]
Okada, Yasunori [1 ,2 ,9 ]
机构
[1] Juntendo Univ, Dept Pathophysiol Locomotive Dis, Grad Sch Med, Tokyo, Japan
[2] Juntendo Univ, Grad Sch Med, Dept Med Orthopaed & Motor Organ, Tokyo, Japan
[3] Juntendo Univ, Dept Community Med & Res Bone & Joint Dis, Grad Sch Med, Tokyo, Japan
[4] Juntendo Univ, Sportol Ctr, Tokyo, Japan
[5] Suntory Global Innovat Ctr Ltd, Res Inst, Kyoto, Japan
[6] Suntory Wellness Ltd., Inst Sci Life, Kyoto, Japan
[7] Jikei Univ, Sch Med, Dept Pathol, Tokyo, Japan
[8] Juntendo Univ, Grad Sch Med, Dept Community Med & Res Bone & Joint Dis, Tokyo 1138241, Japan
[9] Juntendo Univ, Grad Sch Med, Dept Pathophysiol Locomot Dis, 2-1-1 Hongo,Bunkyo Ku, Tokyo 1138241, Japan
基金
日本科学技术振兴机构;
关键词
MESENCHYMAL PROGENITOR CELLS; ARTICULAR-CARTILAGE; DIFFERENTIATION; PROGRESSION; IDENTIFICATION; INTERLEUKIN-6; BETA;
D O I
10.1016/j.ajpath.2023.10.005
中图分类号
R36 [病理学];
学科分类号
100104 ;
摘要
Osteophytes in osteoarthritis (OA) joints contribute to restriction of joint movement, joint pain, and OA progression, but little is known about osteophyte regulators. Examination of gene expression related to cartilage extracellular matrix, endochondral ossification, and growth factor signaling in articular cartilage and osteophytes obtained from OA knee joints showed that several genes such as COL1A1, VCAN, BGLAP, BMP8B, RUNX2, and SOST were overexpressed in osteophytes compared with articular cartilage. Ratios of mesenchymal stem/progenitor cells, which were characterized by co-expression of CD105 and CD166, were significantly higher in osteophytic cells than articular cells. A three-dimensional culture method for cartilage and osteophyte cells was developed by modification of cultures of self-assembled spheroid cell organoids (spheroids). These spheroids cultured in the media for mesen-chymal stem cells containing transforming growth factor-b3 showed characteristic morphologies and gene expression profiles of articular cartilage and osteophytes, respectively. The effects of IL-1b, tumor necrosis factor-a, and IL-6 on the spheroids of articular and osteophytic cells were studied. To the best of our knowledge, they provide the first evidence that IL-6 suppresses the spheroid size of osteophytic cells by inducing apoptosis and reducing extracellular matrix molecules. These data show that IL-6 is the suppressor of osteophyte growth and suggest that IL-6 expression and/or activity are implicated in the regulation of osteophyte formation in pathologic joints. (Am J Pathol 2024, 194: 135-149; https://doi.org/10.1016/j.ajpath.2023.10.005)
引用
收藏
页码:135 / 149
页数:15
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