Unraveling Key m6A Modification Regulators Signatures in Postmenopausal Osteoporosis through Bioinformatics and Experimental Verification
View abstract on PubMed
Summary
This summary is machine-generated.YTH N6-methyladenosine RNA binding protein 3 (YTHDF3) is reduced in osteoporosis, impairing bone marrow mesenchymal stem cell function. Restoring YTHDF3 may enhance bone formation in osteoporosis patients.
Area Of Science
- Biomedical Science
- Molecular Biology
- Stem Cell Research
Background
- Bone marrow mesenchymal stem cells (BMSCs) are crucial for bone formation.
- Osteoporosis involves impaired osteogenic differentiation of BMSCs.
- The molecular mechanisms regulating osteogenic capacity in osteoporosis-derived BMSCs (OP-BMSCs) are not fully understood.
Purpose Of The Study
- To investigate the role of YTH N6-methyladenosine RNA binding protein 3 (YTHDF3) in OP-BMSCs.
- To identify YTHDF3 as a potential therapeutic target for enhancing bone formation in osteoporosis.
Main Methods
- Analysis of Gene Expression Omnibus (GEO) microarray datasets (GSE35956, GSE35958) to identify m6A regulators in osteoporosis.
- Differential expression, protein-protein interaction, and machine learning analyses to pinpoint key genes.
- Single-cell analysis, immune infiltration assessment, Mendelian randomization, in vivo, and in vitro experiments to validate findings.
Main Results
- YTHDF3 was identified as a critical hub gene associated with osteoporosis.
- YTHDF3 expression is significantly decreased in osteoporosis patient and mouse models.
- Silencing YTHDF3 in OP-BMSCs inhibited proliferation and osteogenic differentiation.
Conclusions
- YTHDF3 plays a significant role in the pathogenesis of osteoporosis.
- YTHDF3 regulates the proliferation and osteogenic differentiation of OP-BMSCs.
- Targeting YTHDF3 may offer a therapeutic strategy for osteoporosis.
Related Concept Videos
Bone remodeling is a continuous and balanced process of bone resorption by osteoclasts and bone formation by osteoblasts. In adults, it helps maintain bone mass and calcium homeostasis. While mechanical stress can stimulate turnover as part of the normal maintenance and reparative process, several hormones also regulate bone remodeling.
Hormonal Control of Bone Remodeling
Parathyroid hormone (PTH) maintains homeostatic control of blood calcium levels by regulating bone resorption. PTH is...
Osteoclasts are cells responsible for bone resorption and remodeling. They originate from hematopoietic progenitor cells present in the bone marrow. Numerous progenitor cells fuse to form multinucleated cells, each with 10-20 nuclei. A single osteoclast has a diameter of 150 to 200 µM. These cells have ruffled borders that break down the underlying bone tissue and release minerals such as calcium into the blood in bone resorption. Osteoclasts cling to bones with their ruffled edges during...
Aging and its effect on bone remodeling is the most common cause of bone disorders. In young and healthy people, bone deposition and resorption happen at an equal rate to maintain optimal bone health.
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...

