Cited by 76Osteoarthritis Treatment and MechanismsBone Metabolism and DiseasesBone and Joint Diseases

Irisin inhibits osteocyte apoptosis by activating the Erk signaling pathway in vitro and attenuates ALCT-induced osteoarthritis in mice

He, Zihao, Li, Hanjun, Han, Xuequan, Zhou, Feng, Du, Jingke, Yang, Yiqi, Xu, Qi, Zhang, Shuhong +4 more·2020·Bone

Abstract

Moderate exercise can alleviate symptoms of osteoarthritis (OA) such as pain, stiffness, and joint deformities that are associated with progressive cartilaginous degeneration, osteophyte formation, subchondral bone changes, and synovial inflammation. Irisin is an exercise-related myokine that reportedly plays a crucial role in bone remodeling. However, its role in OA remains unknown. This study aimed to determine whether irisin can attenuate OA progression and the mechanism of its therapeutic effect. Three-month-old male C57BL/6J mice were randomized to groups that underwent sham operation, and anterior cruciate ligament transection (ACLT) intraperitoneally injected with vehicle or irisin in vivo. Apoptosis was induced by stretching murine osteocyte-like MLO-Y4 cells in vitro. Irisin reduced wear, maintained the proportion of hyaline cartilage, a more complete cartilage structure, and lower Osteoarthritis Research Society International (OARSI) scores at 4 weeks after ACLT. Irisin reduced the expression of matrix metalloproteinase (MMP)-13 in cartilage and caspase 3 in the subchondral bone. Irisin exerted rescue effects in microstructural parameters of subchondral trabecular bone including bone volume fraction (BV/TV), trabecular number (Tb.N), connection density (Conn. D), and the structure model index (SMI) compared with ACLT-vehicle group. Bone histomorphometry showed that irisin increased subchondral bone remodeling. The decreasing ratio (%) of the eroded surface (ES/BS) was reversed by irisin in the ACLT+vehicle group. Staining with tartrate-resistant acid phosphatase showed a decreased number of osteoclasts. Irisin significantly increased the proliferation of osteocytes, protected them from apoptosis, and maintained cellular activity by regulating the expression of Bax, Bcl-2, and osteoprotegerin/receptor activator of nuclear factor (NF)-kB-ligand (OPG/Rankl). Irisin activated serine/threonine-selective protein kinases (Erk) and p38 signaling, and its anti-apoptosis function depended on the Erk signaling pathway. Irisin attenuated OA progression by decreasing osteocyte apoptosis and improving the microarchitecture of subchondral bone. Activation of the Erk pathway by irisin plays an important role in reducing osteocyte apoptosis in vitro.

Integrity signals

Registry

Crossref · 10.1016/j.bone.2020.115573

Cites

56 of 56 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Cites

Flagged first, then by citations

1 of the 57 references couldn’t be matched to a known paper.

Cited by

Sorted by citations

Authors
He, Z., Li, H., Han, X., Zhou, F., Du, J., Yang, Y., Xu, Q., Zhang, S., Zhang, S., Zhao, N., Yan, M., & Yu, Z.
Affiliations
Shanghai Jiao Tong University (CN)
Corresponding author
  • Yan, Mengning
  • Yu, Zhifeng
Venue
Bone
Publisher
Elsevier BV
Published
2020-12
Volume
141
Pages
115573
ISSN
  • 1873-2763 (ISSN-L)
  • 8756-3282
OpenAlex
W3047304391
Cited by
76
References
57
Citations by year
2026: 6 · 2025: 14 · 2024: 11 · 2023: 16 · 2022: 23 · 2021: 6
FWCI
8.48
Type
journal article
Language
en
Open access
closed
Locations
  • Bone (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Natural Science Foundation of China (11872251, 11572197, 81802679)
  • China Postdoctoral Science Foundation (2019T120348, 2018M632136)
Topics
  • Health Sciences › Medicine › Rheumatology › Osteoarthritis Treatment and Mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Bone Metabolism and Diseases
  • Health Sciences › Medicine › Orthopedics and Sports Medicine › Bone and Joint Diseases
Keywords
irisin, osteoarthritis, osteocyte apoptosis, ERK signaling, anterior cruciate ligament transection, subchondral bone remodeling, cartilage degeneration, MMP-13, caspase-3, osteoclasts, Bax/Bcl-2 ratio, p38 signaling, myokines, physical activity
MeSH terms
Animals, Cartilage, Articular, Disease Models, Animal, Male, Mice, Inbred C57BL, Osteoarthritis, Osteocytes, Signal Transduction, Apoptosis, MAP Kinase Signaling System, Mice

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review