ArticleJournal of molecular histology2020
PERK-eIF2α-ATF4 signaling contributes to osteogenic differentiation of periodontal ligament stem cells.
Article in Journal of molecular histology, 2020. 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, 17 citations in OpenAlex.
- The UFM1 Conjugation System: A Master Regulator of Cellular Stress Surveillance in Human Disease.Biology · 2026Review
- Impaired stemness in aging periodontal ligament stem cells is mediated by the progerin/endoplasmic reticulum stress/p53 axis.Journal of advanced research · 2025Article
- Impact of Different Cell Types on the Osteogenic Differentiation Process of Mesenchymal Stem Cells.Stem cells international · 2025Review
- ERS-PERK Pathway is Involved in the Repair of the Pulpo-Dentinal Complex Under an Inflammatory Microenvironment.Stem cells international · 2025Article
- Integrative bulk and single-cell transcriptome analyses reveal integrated stress response-related biomarkers in periodontitis with experimental validation.Frontiers in immunology · 2025Article
- KPNB1-ATF4 induces BNIP3-dependent mitophagy to drive odontoblastic differentiation in dental pulp stem cells.Cellular & molecular biology letters · 2024Article
- The Role of Endoplasmic Reticulum Stress in Differentiation of Cells of Mesenchymal Origin.Biochemistry. Biokhimiia · 2022Review
- The progress of protein synthesis factors eIFs, eEFs and eRFs in inflammatory bowel disease and colorectal cancer pathogenesis.Frontiers in oncology · 2022Review
- High doses of dexamethasone induce endoplasmic reticulum stress-mediated apoptosis by promoting calcium ion influx-dependent CHOP expression in osteoblasts.Molecular biology reports · 2021Article
- Regulation of Osteoblast Differentiation by Cytokine Networks.International journal of molecular sciences · 2021Review
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Protein kinase-like endoplasmic reticulum kinase (PERK) is a type I transmembrane protein located in the endoplasmic reticulum (ER). The PERK-eukaryotic initiation factor 2α (eIF2α)-activating transcription factor 4 (ATF4) pathway has been proved to be involved in osteoblast differentiation, but the involvement of the PERK-eIF2α-ATF4 signaling pathway in osteogenic differentiation of human periodontal ligament stem cells (hPDLSCs) has remained unclear. Therefore, the aim of this study was to explore the role of PERK in osteogenic differentiation of hPDLSCs and to assess whether PERK-eIF2α-ATF4 contributes to the process of osteogenic differentiation in hPDLSCs. In our study, we constructed PERK-overexpressed and PERK-silenced hPDLSCs by lentiviral transduction. Furthermore, lentivirus-transfected cells were induced to differentiate into osteoblast cells for different days. Alkaline phosphatase (ALP) activity and Alizarin Red staining were used to evaluate the mineralization capacity, and the expression levels of related genes-ATF4, ALP, bone sialoprotein, runt-related transcription factor 2 (Runx2), and osteocalcin were measured to evaluate the osteogenic differentiation of hPDLSCs. The results showed that over-expression of PERK greatly increased ALP activity and the expression levels of related osteogenic genes, which displayed the strongest osteogenesis capacity. However, suppression of PERK caused decreased ALP activity and the weakest osteogenesis capacity, and the levels of ATF4 and p-eIF2α in PERK-silenced hPDLSCs were also decreased. Our results indicated that the PERK gene plays an important role in the differentiation of hPDLSCs to osteoblast-like cells. The PERK-eIF2α-ATF4 signaling pathway contributes to osteoblast differentiation of hPDLSCs.
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