ArticleJoint diseases and related surgery2020
Effects of osteoblast autophagy on glucocorticoid-induced femoral head necrosis.
Article in Joint diseases and related surgery, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 11 citations in OpenAlex.
- Advances in Research on Autophagy in Steroid-Induced Osteonecrosis of the Femoral Head: Dual Regulation of Its Beneficial and Detrimental Effects.Drug design, development and therapy · 2026Review
- MiR-370-3p regulate TLR4/SLC7A11/GPX4 to alleviate the progression of glucocorticoids-induced osteonecrosis of the femoral head by promoting osteogenesis and suppressing ferroptosis.Journal of orthopaedic translation · 2025Article
- Amentoflavone Induces Ferroptosis to Alleviate Proliferation, Migration, Invasion and Inflammation in Rheumatoid Arthritis Fibroblast-like Synoviocytes by Inhibiting PIN1.Cell biochemistry and biophysics · 2025Article
- TRIM21 silencing inhibits the apoptosis and expedites the osteogenic differentiation of dexamethasone‑induced MC3T3‑E1 cells by activating the Keap1/Nrf2 pathway.Experimental and therapeutic medicine · 2024Article
- Comparison of the prophylactic use of ibandronate and its use in early-stage osteonecrosis in rats with steroid-induced osteonecrosis of the femoral head.Joint diseases and related surgery · 2023Article
- Denosumab Can Prevent Collapse in Patients with Early-Stage Steroid-Induced Osteonecrosis of the Femoral Head by Inhibiting Osteoclasts and Autophagy.Orthopaedic surgery · 2023Article
- The effects of thymoquinone on steroid-induced femoral head osteonecrosis: An experimental study in rats.Joint diseases and related surgery · 2022Article
- Aucubin prevents steroid-induced osteoblast apoptosis by enhancing autophagy via AMPK activation.Journal of cellular and molecular medicine · 2021Article
- Are outpatient total hip and knee arthroplasties safe?Joint diseases and related surgeryArticle
Corrections and comments
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectivesThis study aims to explore the mechanism by which osteoblast autophagy participated in glucocorticoid-induced femoral head necrosis (FHN). MATERIALS AND
methodsThirty male specific-pathogen-free C57 mice (age, one month; weighing 20-25 g) were randomly divided into blank control, dexamethasone and rapamycin-dexamethasone groups (n=10). After six weeks of intervention, right femoral head was obtained to observe morphology and to calculate percentage of empty lacunae. MC3T3-E1 cells were randomly divided into normal, dexamethasone, rapamycin and dexamethasone-rapamycin groups, and cultured for 24 h. Microtubule-associated protein 1 light chain 3 (LC3)-I, LC3-II, mammalian target of rapamycin (mTOR) and Beclin-1 protein expressions were detected by Western blot.
resultsIn rapamycin-dexamethasone group, some bone trabeculae in medullary cavity ruptured and atrophied, and subchondral bone underwent local necrosis. The total apoptosis rates of dexamethasone and rapamycin-dexamethasone groups surpassed that of blank control group, and the former two groups had significantly different rates (p<0.001). LC3-II/LC3-I of dexamethasone group was lower than those of rapamycin and dexamethasone-rapamycin groups (p<0.001), and the ratio of rapamycin group surpassed that of dexamethasone-rapamycin group (p<0.001). Dexamethasone group had higher mTOR protein expression than those of rapamycin and dexamethasone- rapamycin groups (p<0.001), and the expression of rapamycin group was lower than that of dexamethasone-rapamycin group (p<0.001). The Beclin-1 protein expression of dexamethasone group was lower than those of rapamycin and dexamethasone- rapamycin groups (p<0.001), and the expression of rapamycin group exceeded that of dexamethasone-rapamycin group (p<0.05).
conclusionOsteoblast autophagy may play a crucial protective role in dexamethasone-induced FHN. The attenuation of autophagy may be related to the affected expressions of key autophagy regulators mTOR and Beclin-1.
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