Abstract
Background
Mortality in patients with diabetes mellitus is estimated above 65% due to cardiovascular diseases. The aim of study was to investigate the effects of high-glucose conditions on TGF-β type II receptor (TGFBR2) expression levels, cell viability, and migration rate in vascular smooth muscle cells (VSMCs).
Methods
VSMCs were incubated in 30 mM and 50 mM of glucose for 24 h, 48 h, and 72 h periods. The gene and protein expression levels were investigated by Real-time qRT-PCR and western blotting techniques, respectively. The cell viability was evaluated by MTT assay. VSMC migration rate was also studied by wound healing assay.
Results
The TGFBR2 gene and protein expression levels were significantly upregulated in all the groups treated with glucose in 24 h, 48 h, and 72 h periods. The cell viability was not significantly affected in values of 30 mM and 50 mM of glucose. The increase of migration rate of VSMCs was not significant.
Conclusion
The results suggested the increased expression levels of TGFBR2 in the response to high glucose conditions may modulate the cellular events through the signaling pathway network in VSMCs.
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Data availability
The data sets used and/or analyzed during this study are available from the corresponding author on request.
Abbreviations
- CVD:
-
Cardiovascular disease
- VSMCs:
-
Vascular smooth muscle cells
- AGEs:
-
Advanced glycation end-products
- TGF-β:
-
Transforming growth factor-beta
- TGFBR2:
-
TGF-β type II receptor
- SMC:
-
Smooth muscle cells
- DMEM:
-
Dulbecco’s modified eagle medium
- FBS:
-
Fetal bovine serum
- cDNA:
-
Complementary DNA
- PVDF:
-
Polyvinylidene difluoride
- TBST:
-
Tris-buffered saline with 0.1% Tween®20
- ECL:
-
Enhanced chemiluminescence
- PMSF:
-
Phenylmethylsulfonyl fluoride
- PBS:
-
Phosphate-buffered saline
- CMR:
-
Cellular migration rate
- T2D:
-
Type 2 diabetes
- H-RPE:
-
Human retinal pigment epithelium
- MAPKs:
-
Mitogen-activated protein kinases
- ERK:
-
Extracellular-signal-regulated kinase
- JNK:
-
Jun N-terminal kinase
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The study is supported by Iran University of Medical Sciences, Grant No. 14440.
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MN designed research; GG, FZG, AAS and AM performed experiments; MN and GG analyzed data; MN and GG wrote the manuscript. All authors reviewed and approved the manuscript.
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The Ethical Committee of Iran University of Medical Sciences, Tehran, Iran, approves the study (14440).
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Ghasempour, G., Mohammadi, A., Zamani-Garmsiri, F. et al. Upregulation of TGF-β type II receptor in high glucose-induced vascular smooth muscle cells. Mol Biol Rep 49, 2869–2875 (2022). https://doi.org/10.1007/s11033-021-07100-7
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DOI: https://doi.org/10.1007/s11033-021-07100-7