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N,N-Dimethylformamide inhibits high glucose-induced osteoporosis via attenuating MAPK and NF-κB signalling
Ya Dong Liu1, Jian Feng Liu2, Bin Liu2
1Department of Spine Surgery, The First Hospital of Jilin University, Changchun, China.
Aims:
The role of N,N-dimethylformamide (DMF) in diabetes-induced osteoporosis (DM-OS) progression remains unclear. Here, we aimed to explore the effect of DMF on DM-OS development.
Methods:
Diabetic models of mice, RAW 264.7 cells, and bone marrow macrophages (BMMs) were established by streptozotocin stimulation, high glucose treatment, and receptor activator of nuclear factor-κB ligand (RANKL) treatment, respectively. The effects of DMF on DM-OS development in these models were examined by micro-CT analysis, haematoxylin and eosin (H&E) staining, osteoclast differentiation of RAW 264.7 cells and BMMs, H&E and tartrate-resistant acid phosphatase (TRAP) staining, enzyme-linked immunosorbent assay (ELISA) of TRAP5b and c-terminal telopeptides of type 1 (CTX1) analyses, reactive oxygen species (ROS) analysis, quantitative reverse transcription polymerase chain reaction (qRT-PCR), Cell Counting Kit-8 (CCK-8) assay, and Western blot.
Results:
The established diabetic mice were more sensitive to ovariectomy (OVX)-induced osteoporosis, and DMF treatment inhibited the sensitivity. OVX-treated diabetic mice exhibited higher TRAP5b and c-terminal telopeptides of type 1 (CTX1) levels, and DMF treatment inhibited the enhancement. DMF reduced RAW 264.7 cell viability. Glucose treatment enhanced the levels of TRAP5b, cathepsin K, Atp6v0d2, and H+-ATPase, ROS, while DMF reversed this phenotype. The glucose-increased protein levels were inhibited by DMF in cells treated with RANKL. The expression levels of antioxidant enzymes Gclc, Gclm, Ho-1, and Nqo1 were upregulated by DMF. DMF attenuated high glucose-caused osteoclast differentiation by targeting mitogen-activated protein kinase (MAPK) and nuclear factor kappa B (NF-κB) signalling in BMMs.
Conclusion:
DMF inhibits high glucose-induced osteoporosis by targeting MAPK and NF-κB signalling. Cite this article: Bone Joint Res 2022;11(4):200-209.
Insights
N,N-dimethylformamide (DMF) inhibits high glucose-induced osteoporosis by targeting key signaling pathways. This study investigated DMF
Area of Science:
- Biomedical research
- Cell biology
- Endocrinology
Background:
- Diabetes-induced osteoporosis (DM-OS) is a growing concern.
- The precise role of N,N-dimethylformamide (DMF) in DM-OS progression is not well understood.
- Investigating novel therapeutic targets for DM-OS is crucial.
Purpose of the Study:
- To elucidate the effect of DMF on the development of diabetes-induced osteoporosis.
- To explore the underlying molecular mechanisms by which DMF influences DM-OS.
Main Methods:
- Established diabetic mouse models, RAW 264.7 cells, and bone marrow macrophages (BMMs).
- Assessed DMF's impact using micro-CT, histology, cell viability assays, ELISA, ROS analysis, qRT-PCR, and Western blotting.
- Investigated the involvement of mitogen-activated protein kinase (MAPK) and nuclear factor kappa B (NF-κB) signaling pathways.
Main Results:
- DMF treatment inhibited ovariectomy-induced osteoporosis in diabetic mice.
- DMF reversed high glucose-induced increases in osteoclast differentiation markers and reactive oxygen species (ROS).
- DMF upregulated antioxidant enzyme expression and attenuated osteoclast differentiation by targeting MAPK and NF-κB signaling.
Conclusions:
- N,N-dimethylformamide (DMF) demonstrates a protective effect against high glucose-induced osteoporosis.
- DMF exerts its therapeutic action by modulating MAPK and NF-κB signaling pathways.
- These findings suggest DMF as a potential therapeutic agent for managing diabetes-induced osteoporosis.
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