ArticleJournal of orthopaedic translation2019
Haem oxygenase-1 induction prevents glucocorticoid-induced osteoblast apoptosis through activation of extracellular signal-regulated kinase1/2 signalling pathway.
Article in Journal of orthopaedic translation, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 12 citations in OpenAlex.
- Heme Oxygenase-1 in Bone Remodeling: Molecular Mechanisms and Therapeutic Implications.Biomolecules · 2026Review
- mClinical and translational medicine · 2026Article
- Targeting Sphingosine-1-Phosphate Signaling Attenuates Doxorubicin-Aggravated Bone Loss in Obese Breast Cancer Mice.Smart medicine · 2026Article
- In Situ Biomineralization Enhances Mitochondrial Transplantation to Differentiating Osteoclast Precursors for Suppressing Cancer-Induced Osteolysis.Research (Washington, D.C.) · 2026Article
- Narirutin mitigates inflammatory arthritis and osteoporosis through modulating macrophage phenotype and osteoclastogenesis.Journal of orthopaedic translation · 2025Article
- Parthenolide ameliorates glucocorticoid-induced inhibition of osteogenic differentiation and osteoporosis by activating ERK signaling pathway.Journal of orthopaedic surgery and research · 2025Article
- Luteolin's Potential in Managing Osteoporosis and Bone Metabolism Disorders: Preclinical Insights.Drug design, development and therapy · 2025Review
- Erythropoietin suppresses osteoblast apoptosis and ameliorates steroid-induced necrosis of the femoral head in rats by inhibition of STAT1-caspase 3 signaling pathway.BMC musculoskeletal disorders · 2023Article
- Pathogenic mechanisms of glucocorticoid-induced osteoporosis.Cytokine & growth factor reviews · 2023Review
- The Protective Effect of Luteolin in Glucocorticoid-Induced Osteonecrosis of the Femoral Head.Frontiers in pharmacology · 2020Article
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6 authors at 2 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundHigh-dose glucocorticoid (GC) therapy always causes osteoporosis partly by inducing osteoblast apoptosis. However, the underlying mechanisms of GC-induced apoptosis remain elusive. Haem oxygenase-1 (HO-1) is a cytoprotective protein that rescues cells from H
objectiveThe present study aimed to investigate the protective role of HO-1 against GC-induced osteoblast apoptosis and to elucidate the underlying mechanism.
methodsMouse osteoblastic MC3T3-E1 cells were treated with dexamethasone (Dex) for 24 h in the presence or absence of cobalt (III) protoporphyrin IX chloride (CoPP, an inducer of HO-1). In some experiments, U0126 was added to the culture 1 h before CoPP treatment. The induction of apoptosis was determined by flow cytometry. Cell viability was evaluated using a cell counting kit-8 (CCK-8) assay. The expression levels of Bax and bcl-2 were measured by real-time polymerase chain reaction and Western blot. HO-1, extracellular signal-regulated kinase (ERK)-1/2 and pERK1/2 protein levels were measured by Western blot analysis.
resultsDex promoted apoptosis and inhibited cell viability in MC3T3-E1 cells. In addition, Dex significantly increased Bax expression and reduced Bcl-2 expression. The expression of HO-1 was also reduced after Dex treatment. HO-1 induction by CoPP significantly attenuated Dex-induced apoptosis as evidenced by Annexin V/PI staining. The mRNA expression level of antiapoptotic gene Bcl-2 was also increased after CoPP treatment. Moreover, CoPP treatment increased the phosphorylation of ERK1/2. U0126, an inhibitor of ERK activation, significantly abrogated the protective effects of CoPP.
conclusionOur results demonstrate that HO-1 induction by CoPP can attenuate Dex-induced apoptosis of mouse osteoblastic MC3T3-E1 cells. The antiapoptotic effect of HO-1 induction may be correlated with the activation of ERK1/2 signalling pathway.
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