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Long noncoding RNAs (lncRNAs) have been regarded as important regulators in numerous biological processes during cell development. However, the holistic lncRNA expression pattern and potential functions during osteoblast differentiation under simulated microgravity remain unknown. In the present study, a high throughput microarray assay was performed to detect lncRNA and mRNA expression profiles during MC3TC‑E1 pre‑osteoblast cell osteo‑differentiation under simulated microgravity. The expression of 857 lncRNAs and 2,264 mRNAs was signi-ficantly altered when MC3T3‑E1 cells were exposed to simulated microgravity. A relatively consistent distribution pattern on the chromosome and a co‑expression network were observed between the differentially‑expressed lncRNAs and mRNAs. Genomic context analysis further identified 132 differentially‑expressed lncRNAs and nearby coding gene pairs. Subsequently, 3 lncRNAs were screened out for their possible function in osteoblast differentiation, based on their co‑expression association and potential cis‑acting regulatory pattern with the deregulated mRNAs. The present study aimed to provide a comprehensive understanding of and a foundation for future studies into lncRNA function in mechanical signal‑mediated osteoblast differentiation.
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http://dx.doi.org/10.3892/mmr.2017.7671 | DOI Listing |
Braz Oral Res
September 2025
Universidade de São Paulo - USP, School of Dentistry of Ribeirão Preto, Department of Pediatric Dentistry, Ribeirão Preto, SP, Brazil.
Tumor necrosis factor-alpha (TNF-α) is a cytokine involved in the immune-inflammatory response. It can induce an odontoblastic phenotype and enhance biomineralization in dental pulp mesenchymal stem cells but does not have the same effect on osteoblasts. The reasons for this differential response, despite the shared lineage of these cell types, are not yet clear.
View Article and Find Full Text PDFACS Nano
September 2025
Guangzhou Key Laboratory of Spine Disease Prevention and Treatment, Department of Orthopaedic Surgery, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, Guangdong Provincial Clinical Research Center for Obstetrics and Gynecology, The Third Affiliated Hospital, Guangzhou Medical Univer
Osteoporotic fractures are notoriously difficult to heal due to an imbalance between osteoblasts and osteoclasts. Current treatments often have limited efficacy or adverse side effects, necessitating safer and more effective solutions. Here, we developed an injectable plant-derived phosphate coordination compound-based adhesive hydrogel (MgPA-Gel) to restore bone homeostasis by integrating magnesium ions (Mg)-phytic acid (PA) nanoparticles with aminated gelatin (Gel-NH) and aldehydated starch (AS).
View Article and Find Full Text PDFRegen Biomater
August 2025
Institute of Stomatology & Oral Maxilla Facial Key Laboratory, First Medical Center of Chinese PLA General Hospital, Beijing 100853, China.
Reconstructing bone defects remains a significant challenge in clinical practice, driving the urgent need for advanced artificial grafts that simultaneously promote vascularization and osteogenesis. Addressing the critical trade-off between achieving high porosity/strength and effective bioactivity at safe ion doses, we incorporated strontium (Sr) into β-tricalcium phosphate (β-TCP) scaffolds with a triply periodic minimal surface (TPMS) structure using digital light processing (DLP)-based three-dimensional (3D) printing. Systematically screening Sr concentrations (0-10 mol%), we identified 10 mol% as optimal, leveraging the synergy between the biomimetic TPMS architecture, providing exceptional mechanical strength (up to 1.
View Article and Find Full Text PDFFront Pharmacol
August 2025
Department of Genetics and Cell Biology, School of Basic Medicine, Qingdao University, Qingdao, Shandong, China.
Background: Osteoporosis (OP) is a chronic, systemic skeletal disorder characterized by progressive bone loss and microarchitectural deterioration, which increases fracture susceptibility and presents a challenging set of global healthcare problems. Current pharmacological interventions are limited by adverse effects, high costs, and insufficient long-term efficacy. Here, we identify snow crab shell-derived polypeptides (SCSP) as a potent osteoprotective agent.
View Article and Find Full Text PDFBone
September 2025
Department of Bone and Mineral Research, Research Institute, Osaka Women's and Children's Hospital, Osaka Prefectural Hospital Organization, Izumi, Osaka, 594-1101, Japan. Electronic address:
Hypophosphatasia (HPP) is caused by inactivating variants of ALPL, the gene encoding tissue non-specific alkaline phosphatase (TNSALP). In order to deepen our understanding of the pathogenic mechanisms of HPP, we herein generated ALPL-knockout (KO) human induced pluripotent stem (iPS) cells by applying CRISPR/Cas9-mediated gene deletion to an iPS clone derived from a healthy subject. We analyzed two ALPL-KO clones, one ALPL-hetero KO clone, and a control clone isogenic except for ALPL.
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