Abstract
Background
Clear cell renal cell carcinoma (ccRCC) is a form of kidney cancer characterized by dysregulated angiogenesis and multidrug resistance. Hypoxia-induced tumor progression plays a crucial role in ccRCC pathogenesis. Beta-hydroxybutyrate (BHB) and quercetin (QCT) have shown potential in targeting angiogenesis and drug resistance in various cancer types. This study investigates the combined effects of BHB and QCT in hypoxia-induced Caki-1 cells.
Methods
Caki-1 cells were subjected to normoxic and hypoxic conditions and treated with BHB, QCT, or a combination of both. Cell-viability was assessed using the MTT assay, and mRNA expression levels of key angiogenesis-related genes (HIF-1α/2α, VEGF, Ang-1, Ang-2, and MDR4) were quantified through real-time PCR during 24 and 48 h.
Results
BHB and QCT treatments, either alone or in combination, significantly reduced cell-viability in Caki-1 cells (p < 0.05). Moreover, the combined therapy demonstrated a potential effect in downregulating the expression of angiogenesis-related genes and MDR4 in hypoxia-induced cells, with a marked reduction in HIF-1α/2α, VEGF, Ang-1, and MDR4 expression (p < 0.05). The expression of Ang-2 increases significantly in presence of BHB combined QCT treatment.
Conclusion
This study highlights the promising potential of a combination therapy involving BHB and QCT in mitigating angiogenesis and MDR4 expression in hypoxia-induced ccRCC cells. These findings support further investigation into the underlying mechanisms and warrant clinical studies to evaluate the therapeutic value of this combined treatment for ccRCC patients. This research provides new insights into addressing the challenges posed by angiogenesis and drug resistance in ccRCC.
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Information and resources availability
This article contains all data created and examined throughout this investigation. The corresponding author will provide datasets used or analyzed during the current work upon reasonable request.
Abbreviations
- RCC:
-
Renal cell carcinoma
- ccRCC:
-
Clear cell renal cell carcinoma
- HIFα:
-
Hypoxia-inducible factor alpha
- VHL:
-
Von Hippel-Lindau protein
- VEGF:
-
Vascular endothelial growth factor
- Ang-1:
-
Angiopoietin-1
- MDR:
-
Multidrug resistance
- EMT:
-
Epithelial–mesenchymal transition
- BHB:
-
Beta-hydroxybutyrate
- QCT:
-
Quercetin
- KD:
-
Ketogenic diet
- CMap:
-
Connectivity Map
- MTT:
-
3-(4,5-Dimethyl-2-thiazolyl)-2,5-diphenyl-2H-tetrazolium bromide
- DMEM:
-
Dulbecco’s modified Eagle’s medium
- FBS:
-
Fetal bovine serum
- DMSO:
-
Dimethyl sulfoxide
- cDNA:
-
Complementary DNA
- RT-qPCR:
-
Real-time reverse transcription-polymerase chain reaction
- SD:
-
Standard deviation
- ANOVA:
-
Analysis of variance
- PTMs:
-
Posttranslational modifications
- ACAT1:
-
Acetyl-CoA acyltransferase 1
- GSC:
-
Glioma stem cells
- ROS:
-
Reactive oxygen species
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All experiments, statistical analysis, and figure preparation were conducted by NM, RN, SAM, FA, MO. The initial draft of manuscript was written by NM, SD, and MS. All tests were set up by MHM and second draft of manuscript was written by MHM. A final manuscript proof was completed by SD and MHM who also contributed more funds to the project. All authors have read and agreed to the published version of the manuscript.
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Mohammadipoor, N., Naiebi, R., Mazhari, S.A. et al. Improved therapy for clear cell renal cell carcinoma: beta-hydroxybutyrate and quercetin target hypoxia-induced angiogenesis and multidrug resistance. Mol Biol Rep 51, 379 (2024). https://doi.org/10.1007/s11033-024-09355-2
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DOI: https://doi.org/10.1007/s11033-024-09355-2