Diosgenin

CAS# 512-04-9

Diosgenin

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Chemical structure

Diosgenin

3D structure

Chemical Properties of Diosgenin

Cas No. 512-04-9 SDF Download SDF
PubChem ID 99474 Appearance White-beige powder
Formula C27H42O3 M.Wt 414.63
Type of Compound Steroids Storage Desiccate at -20°C
Synonyms Nitogenin
Solubility Ethanol : 6.67 mg/mL (16.09 mM; Need ultrasonic)
DMSO : < 1 mg/mL (insoluble or slightly soluble)
SMILES CC1CCC2(C(C3C(O2)CC4C3(CCC5C4CC=C6C5(CCC(C6)O)C)C)C)OC1
Standard InChIKey WQLVFSAGQJTQCK-VKROHFNGSA-N
Standard InChI InChI=1S/C27H42O3/c1-16-7-12-27(29-15-16)17(2)24-23(30-27)14-22-20-6-5-18-13-19(28)8-10-25(18,3)21(20)9-11-26(22,24)4/h5,16-17,19-24,28H,6-15H2,1-4H3/t16-,17+,19+,20-,21+,22+,23+,24+,25+,26+,27-/m1/s1
General tips For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months.
We recommend that you prepare and use the solution on the same day. However, if the test schedule requires, the stock solutions can be prepared in advance, and the stock solution must be sealed and stored below -20℃. In general, the stock solution can be kept for several months.
Before use, we recommend that you leave the vial at room temperature for at least an hour before opening it.
About Packaging 1. The packaging of the product may be reversed during transportation, cause the high purity compounds to adhere to the neck or cap of the vial.Take the vail out of its packaging and shake gently until the compounds fall to the bottom of the vial.
2. For liquid products, please centrifuge at 500xg to gather the liquid to the bottom of the vial.
3. Try to avoid loss or contamination during the experiment.
Shipping Condition Packaging according to customer requirements(5mg, 10mg, 20mg and more). Ship via FedEx, DHL, UPS, EMS or other couriers with RT, or blue ice upon request.

Source of Diosgenin

1 Allium sp. 2 Capsicum sp. 3 Costus sp. 4 Dioscorea sp. 5 Lycium sp. 6 Paris sp. 7 Polygonatum sp. 8 Smilax sp. 9 Solanum sp. 10 Trigonella sp.

Biological Activity of Diosgenin

DescriptionDiosgenin possesses antivascular calcification , anti-osteoclastogenesis, anti-inflammatory and anticancer properties, it has favorable effects in the improvement of diabetes and regulation of lipid metabolism. Diosgenin treated inflammation-related disorders through the blockade of cAMP, PKA, cPLA2, PAK, Akt and MAPKs signaling pathways. Diosgenin may decrease the risk of developing dementia of opiate abusers with HIV infection and the ApoE4 allele.
TargetsPKA | cAMP | Akt | p38MAPK | Phospholipase (e.g. PLA) | ERK | JNK | NOS | COX | AP-1 | Bcl-2/Bax | MMP(e.g.TIMP) | TNF-α | NF-kB | p65 | HIV | ApoE4
In vitro

Diosgenin inhibits osteoclastogenesis, invasion, and proliferation through the downregulation of Akt, I kappa B kinase activation and NF-kappa B-regulated gene expression.[Pubmed: 16331273 ]

Oncogene. 2006 Mar 9;25(10):1463-73.

Diosgenin, a steroidal saponin present in fenugreek (Trigonella foenum graecum) and other plants, has been shown to suppress inflammation, inhibit proliferation, and induce apoptosis in a variety of tumor cells, but through a mechanism that is poorly understood.
METHODS AND RESULTS:
In the present study, we report that Diosgenin inhibits receptor-activated nuclear factor-kappaB ligand-induced osteoclastogenesis, suppresses tumor necrosis factor (TNF)-induced invasion, and blocks the proliferation of tumor cells, all activities known to be regulated by NF-kappaB. Diosgenin suppressed TNF-induced NF-kappaB activation as determined by DNA binding, activation of IkappaBalpha kinase, IkappaBalpha phosphorylation, IkappaBalpha degradation, p65 phosphorylation, and p65 nuclear translocation through inhibition of Akt activation. NF-kappaB-dependent reporter gene expression was also abrogated by Diosgenin. TNF-induced expression of NF-kappaB-regulated gene products involved in cell proliferation (cyclin D1, COX-2, c-myc), antiapoptosis (IAP1, Bcl-2, Bcl-X(L), Bfl-1/A1, TRAF1 and cFLIP), and invasion (MMP-9) were also downregulated by the saponin. Diosgenin also potentiated the apoptosis induced by TNF and chemotherapeutic agents.
CONCLUSIONS:
Overall, our results suggest that Diosgenin suppresses proliferation, inhibits invasion, and suppresses osteoclastogenesis through inhibition of NF-kappaB-regulated gene expression and enhances apoptosis induced by cytokines and chemotherapeutic agents.

Increased vulnerability of ApoE4 neurons to HIV proteins and opiates: protection by diosgenin and L-deprenyl.[Pubmed: 16697650 ]

Neurobiol Dis. 2006 Jul;23(1):109-19.

Human immunodeficiency virus (HIV) infection continues to rise in drug-abusing populations and causes a dementing illness in a subset of individuals. Factors contributing to the development of dementia in this population remain unknown.
METHODS AND RESULTS:
We found that HIV-infected individuals with the E4 allele of Apolipoprotein E (ApoE) or history of intravenous drug abuse had increased oxidative stress in the CNS. In vitro studies showed that HIV proteins, gp120 and Tat, Tat + morphine but not tumor necrosis factor-alpha (TNF-alpha), caused increased neurotoxicity in human neuronal cultures with ApoE4 allele. Microarray analysis showed a differential alteration of transcripts involved in energy metabolism in cultures of ApoE3 and 4 neurons upon treatment with Tat + morphine. This was confirmed using assays of mitochondrial function and exposure of the neurons to Tat + morphine. Using this in vitro model, we screened a number of novel antioxidants and found that only L-deprenyl and Diosgenin protected against the neurotoxicity of Tat + morphine. Furthermore, Tat-induced oxidative stress impaired morphine metabolism which could also be prevented by Diosgenin.
CONCLUSIONS:
In conclusion, opiate abusers with HIV infection and the ApoE4 allele may be at increased risk of developing dementia. L-deprenyl and a plant estrogen, Diosgenin, may have therapeutic potential in this population.

In vivo

Diosgenin inhibits superoxide generation in FMLP-activated mouse neutrophils via multiple pathways.[Pubmed: 25246240]

Free Radic Res. 2014 Dec;48(12):1485-93.

Diosgenin possesses anti-inflammatory and anticancer properties. Activated neutrophils produce high concentrations of the superoxide anion which is involved in the pathophysiology of inflammation-related diseases and cancer.
METHODS AND RESULTS:
In the present study, the inhibitory effect and possible mechanisms of Diosgenin on superoxide generation were investigated in mouse bone marrow neutrophils. Diosgenin potently and concentration-dependently inhibited the extracellular and intracellular superoxide anion generation in Formyl-Met-Leu-Phe (FMLP)- activated neutrophils, with IC50 values of 0.50 ± 0.08 μM and 0.66 ± 0.13 μM, respectively. Such inhibition was not mediated by scavenging the superoxide anion or by a cytotoxic effect. Diosgenin inhibited the phosphorylation of p47phox and membrane translocation of p47phox and p67phox, and thus blocking the assembly of nicotinamide adenine dinucleotide phosphate oxidase. Moreover, cellular cyclic adenosine monophosphate (cAMP) levels and protein kinase A (PKA) expression were also effectively increased by Diosgenin. It attenuated FMLP-induced increase of phosphorylation of cytosolic phospholipase A (cPLA2), p21-activated kinase (PAK), Akt, p38 mitogen-activated protein kinase (p38MAPK), extracellular signal-regulated kinase (ERK1/2), and c-Jun N-terminal kinase (JNK). Our data indicate that Diosgenin exhibits inhibitory effects on superoxide anion production through the blockade of cAMP, PKA, cPLA2, PAK, Akt and MAPKs signaling pathways.
CONCLUSIONS:
The results may explain the clinical implications of Diosgenin in the treatment of inflammation-related disorders.

Protocol of Diosgenin

Cell Research

Diosgenin inhibits atherosclerosis via suppressing the MiR-19b-induced downregulation of ATP-binding cassette transporter A1.[Pubmed: 25765596]

Atherosclerosis. 2015 May;240(1):80-9.

Diosgenin (Dgn), a structural analogue of cholesterol, has been reported to have the hypolipidemic and antiatherogenic properties, but the underlying mechanisms are not fully understood. Given the key roles of macrophages in cholesterol metabolism and atherogenesis, it is critical to investigate macrophage cholesterol efflux and development of atherosclerotic lesion after Dgn treatment. This study was designed to evaluate the potential effects of Dgn on macrophage cholesterol metabolism and the development of aortic atherosclerosis, and to explore its underlying mechanisms.
METHODS AND RESULTS:
Dgn significantly up-regulated the expression of ATP-binding cassette transporter A1 (ABCA1) protein, but didn't affect liver X receptor α levels in foam cells derived from human THP-1 macrophages and mouse peritoneal macrophages (MPMs) as determined by western blotting. The miR-19b levels were markedly down-regulated in Dgn-treated THP-1 macrophages/MPM-derived foam cells. Cholesterol transport assays revealed that treatment with Dgn alone or together with miR-19b inhibitor notably enhanced ABCA1-dependent cholesterol efflux, resulting in the reduced levels of total cholesterol, free cholesterol and cholesterol ester as determined by high-performance liquid chromatography. The fecal 3H-sterol originating from cholesterol-laden MPMs was increased in apolipoprotein E knockout mice treated with Dgn or both Dgn and antagomiR-19b. Treatment with Dgn alone or together with antagomiR-19b elevated plasma high-density lipoprotein levels, but reduced plasma low-density lipoprotein levels. Accordingly, aortic lipid deposition and plaque area were reduced, and collagen content and ABCA1 expression were increased in mice treated with Dgn alone or together with antagomiR-19b. However, miR-19b overexpression abrogated the lipid-lowering and atheroprotective effects induced by Dgn.
CONCLUSIONS:
The present study demonstrates that Dgn enhances ABCA1-dependent cholesterol efflux and inhibits aortic atherosclerosis progression by suppressing macrophage miR-19b expression.

Animal Research

Diosgenin interferes coronary vasoconstriction and inhibits osteochondrogenic transdifferentiation of aortic VSMC in CRF rats.[Pubmed: 24742379]

Biochimie. 2014 Jul;102:183-7.

Cardiovascular dysfunction and vascular calcification is the leading cause of death in chronic renal failure (CRF) patients. This study was designed to evaluate the effect of Diosgenin on coronary flow resistance and to address the question whether the previously proven antivascular calcification potential of Diosgenin is associated or not with the osteochondrogenic transdifferentiation of vascular smooth muscle cells (VSMC).
METHODS AND RESULTS:
In this study, CRF in Wistar rats was induced by fed with 0.75% adenine and Diosgenin was treated everyday at the dose of 40 mg/kg. Langendorff based isolated heart protocol was employed to analyze the coronary flow resistance. Western blot method was used to explore the phosphorylation dynamics of endothelial nitric oxide synthase (eNOS) at the serine 1177 residue. In addition, cardiac nitric oxide metabolites level also assessed. Quantitative expression of VSMC and osteochondrogenic markers was also evaluated. Antioxidant potential of Diosgenin was studied in vitro. The outcome of the present study explores that Diosgenin treatment significantly improves the coronary resistance and increased the nitric oxide metabolites level compared with CRF. Further, Diosgenin increases the phosphorylation of eNOS (peNOS ser1177). Moreover, Diosgenin reduced the aortic expression of osteochondrogenic markers and improved the VSMC phenotype components. Further, Diosgenin shows concentration dependent antioxidant potential.
CONCLUSIONS:
In conclusion, this study have proven that Diosgenin have enough potential to improve the coronary function and interfere the osteochondrogenic transdifferentiation program of aortic VSMC which supports its antivascular calcification potential.

Diosgenin Dilution Calculator

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Preparing Stock Solutions of Diosgenin

1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 2.4118 mL 12.0589 mL 24.1179 mL 48.2358 mL 60.2947 mL
5 mM 0.4824 mL 2.4118 mL 4.8236 mL 9.6472 mL 12.0589 mL
10 mM 0.2412 mL 1.2059 mL 2.4118 mL 4.8236 mL 6.0295 mL
50 mM 0.0482 mL 0.2412 mL 0.4824 mL 0.9647 mL 1.2059 mL
100 mM 0.0241 mL 0.1206 mL 0.2412 mL 0.4824 mL 0.6029 mL
* Note: If you are in the process of experiment, it's necessary to make the dilution ratios of the samples. The dilution data above is only for reference. Normally, it's can get a better solubility within lower of Concentrations.

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Background on Diosgenin

Diosgenin, an important natural source of steroidal hormones, has favorable effects in the improvement of diabetes and regulation of lipid metabolism. IC50 value: Target: In vitro: In MC65 cells, a cellular AD model, diosgenin exhibited weak protective abilities at 1 μM, may represent a good candidate as a steroidal moiety in our bivalent compounds against AD pathology [1]. In vivo: Diosgenin treatment significantly reduced fasted and refed blood glucose level in HF dietfed mice. Diosgenin treatment significantly reduced blood glucose level in IPGTT test, compared with that of HF diet-fed mice [2].

References:
[1]. Jeremy E. Chojnacki, et al. Bivalent ligands incorporating curcumin and diosgenin as multifunctional compounds against Alzheimer’s disease. Bioorganic & Medicinal Chemistry, 23 (2015) 7324–7331 [2]. Xin Wang, et al. Effect of diosgenin on metabolic dysfunction: Role of ERβ in the regulation of PPARγ. Toxicology and Applied Pharmacology 289 (2015) 286–296

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References on Diosgenin

Diosgenin inhibits osteoclastogenesis, invasion, and proliferation through the downregulation of Akt, I kappa B kinase activation and NF-kappa B-regulated gene expression.[Pubmed:16331273]

Oncogene. 2006 Mar 9;25(10):1463-73.

Diosgenin, a steroidal saponin present in fenugreek (Trigonella foenum graecum) and other plants, has been shown to suppress inflammation, inhibit proliferation, and induce apoptosis in a variety of tumor cells, but through a mechanism that is poorly understood. In the present study, we report that Diosgenin inhibits receptor-activated nuclear factor-kappaB ligand-induced osteoclastogenesis, suppresses tumor necrosis factor (TNF)-induced invasion, and blocks the proliferation of tumor cells, all activities known to be regulated by NF-kappaB. Diosgenin suppressed TNF-induced NF-kappaB activation as determined by DNA binding, activation of IkappaBalpha kinase, IkappaBalpha phosphorylation, IkappaBalpha degradation, p65 phosphorylation, and p65 nuclear translocation through inhibition of Akt activation. NF-kappaB-dependent reporter gene expression was also abrogated by Diosgenin. TNF-induced expression of NF-kappaB-regulated gene products involved in cell proliferation (cyclin D1, COX-2, c-myc), antiapoptosis (IAP1, Bcl-2, Bcl-X(L), Bfl-1/A1, TRAF1 and cFLIP), and invasion (MMP-9) were also downregulated by the saponin. Diosgenin also potentiated the apoptosis induced by TNF and chemotherapeutic agents. Overall, our results suggest that Diosgenin suppresses proliferation, inhibits invasion, and suppresses osteoclastogenesis through inhibition of NF-kappaB-regulated gene expression and enhances apoptosis induced by cytokines and chemotherapeutic agents.

Diosgenin inhibits atherosclerosis via suppressing the MiR-19b-induced downregulation of ATP-binding cassette transporter A1.[Pubmed:25765596]

Atherosclerosis. 2015 May;240(1):80-9.

RATIONALE: Diosgenin (Dgn), a structural analogue of cholesterol, has been reported to have the hypolipidemic and antiatherogenic properties, but the underlying mechanisms are not fully understood. Given the key roles of macrophages in cholesterol metabolism and atherogenesis, it is critical to investigate macrophage cholesterol efflux and development of atherosclerotic lesion after Dgn treatment. OBJECTIVE: This study was designed to evaluate the potential effects of Dgn on macrophage cholesterol metabolism and the development of aortic atherosclerosis, and to explore its underlying mechanisms. METHODS AND RESULTS: Dgn significantly up-regulated the expression of ATP-binding cassette transporter A1 (ABCA1) protein, but didn't affect liver X receptor alpha levels in foam cells derived from human THP-1 macrophages and mouse peritoneal macrophages (MPMs) as determined by western blotting. The miR-19b levels were markedly down-regulated in Dgn-treated THP-1 macrophages/MPM-derived foam cells. Cholesterol transport assays revealed that treatment with Dgn alone or together with miR-19b inhibitor notably enhanced ABCA1-dependent cholesterol efflux, resulting in the reduced levels of total cholesterol, free cholesterol and cholesterol ester as determined by high-performance liquid chromatography. The fecal 3H-sterol originating from cholesterol-laden MPMs was increased in apolipoprotein E knockout mice treated with Dgn or both Dgn and antagomiR-19b. Treatment with Dgn alone or together with antagomiR-19b elevated plasma high-density lipoprotein levels, but reduced plasma low-density lipoprotein levels. Accordingly, aortic lipid deposition and plaque area were reduced, and collagen content and ABCA1 expression were increased in mice treated with Dgn alone or together with antagomiR-19b. However, miR-19b overexpression abrogated the lipid-lowering and atheroprotective effects induced by Dgn. CONCLUSION: The present study demonstrates that Dgn enhances ABCA1-dependent cholesterol efflux and inhibits aortic atherosclerosis progression by suppressing macrophage miR-19b expression.

Diosgenin interferes coronary vasoconstriction and inhibits osteochondrogenic transdifferentiation of aortic VSMC in CRF rats.[Pubmed:24742379]

Biochimie. 2014 Jul;102:183-7.

Cardiovascular dysfunction and vascular calcification is the leading cause of death in chronic renal failure (CRF) patients. This study was designed to evaluate the effect of Diosgenin on coronary flow resistance and to address the question whether the previously proven antivascular calcification potential of Diosgenin is associated or not with the osteochondrogenic transdifferentiation of vascular smooth muscle cells (VSMC). In this study, CRF in Wistar rats was induced by fed with 0.75% adenine and Diosgenin was treated everyday at the dose of 40 mg/kg. Langendorff based isolated heart protocol was employed to analyze the coronary flow resistance. Western blot method was used to explore the phosphorylation dynamics of endothelial nitric oxide synthase (eNOS) at the serine 1177 residue. In addition, cardiac nitric oxide metabolites level also assessed. Quantitative expression of VSMC and osteochondrogenic markers was also evaluated. Antioxidant potential of Diosgenin was studied in vitro. The outcome of the present study explores that Diosgenin treatment significantly improves the coronary resistance and increased the nitric oxide metabolites level compared with CRF. Further, Diosgenin increases the phosphorylation of eNOS (peNOS ser1177). Moreover, Diosgenin reduced the aortic expression of osteochondrogenic markers and improved the VSMC phenotype components. Further, Diosgenin shows concentration dependent antioxidant potential. In conclusion, this study have proven that Diosgenin have enough potential to improve the coronary function and interfere the osteochondrogenic transdifferentiation program of aortic VSMC which supports its antivascular calcification potential.

Diosgenin inhibits superoxide generation in FMLP-activated mouse neutrophils via multiple pathways.[Pubmed:25246240]

Free Radic Res. 2014 Dec;48(12):1485-93.

Diosgenin possesses anti-inflammatory and anticancer properties. Activated neutrophils produce high concentrations of the superoxide anion which is involved in the pathophysiology of inflammation-related diseases and cancer. In the present study, the inhibitory effect and possible mechanisms of Diosgenin on superoxide generation were investigated in mouse bone marrow neutrophils. Diosgenin potently and concentration-dependently inhibited the extracellular and intracellular superoxide anion generation in Formyl-Met-Leu-Phe (FMLP)- activated neutrophils, with IC50 values of 0.50 +/- 0.08 muM and 0.66 +/- 0.13 muM, respectively. Such inhibition was not mediated by scavenging the superoxide anion or by a cytotoxic effect. Diosgenin inhibited the phosphorylation of p47phox and membrane translocation of p47phox and p67phox, and thus blocking the assembly of nicotinamide adenine dinucleotide phosphate oxidase. Moreover, cellular cyclic adenosine monophosphate (cAMP) levels and protein kinase A (PKA) expression were also effectively increased by Diosgenin. It attenuated FMLP-induced increase of phosphorylation of cytosolic phospholipase A (cPLA2), p21-activated kinase (PAK), Akt, p38 mitogen-activated protein kinase (p38MAPK), extracellular signal-regulated kinase (ERK1/2), and c-Jun N-terminal kinase (JNK). Our data indicate that Diosgenin exhibits inhibitory effects on superoxide anion production through the blockade of cAMP, PKA, cPLA2, PAK, Akt and MAPKs signaling pathways. The results may explain the clinical implications of Diosgenin in the treatment of inflammation-related disorders.

Increased vulnerability of ApoE4 neurons to HIV proteins and opiates: protection by diosgenin and L-deprenyl.[Pubmed:16697650]

Neurobiol Dis. 2006 Jul;23(1):109-19.

Human immunodeficiency virus (HIV) infection continues to rise in drug-abusing populations and causes a dementing illness in a subset of individuals. Factors contributing to the development of dementia in this population remain unknown. We found that HIV-infected individuals with the E4 allele of Apolipoprotein E (ApoE) or history of intravenous drug abuse had increased oxidative stress in the CNS. In vitro studies showed that HIV proteins, gp120 and Tat, Tat + morphine but not tumor necrosis factor-alpha (TNF-alpha), caused increased neurotoxicity in human neuronal cultures with ApoE4 allele. Microarray analysis showed a differential alteration of transcripts involved in energy metabolism in cultures of ApoE3 and 4 neurons upon treatment with Tat + morphine. This was confirmed using assays of mitochondrial function and exposure of the neurons to Tat + morphine. Using this in vitro model, we screened a number of novel antioxidants and found that only L-deprenyl and Diosgenin protected against the neurotoxicity of Tat + morphine. Furthermore, Tat-induced oxidative stress impaired morphine metabolism which could also be prevented by Diosgenin. In conclusion, opiate abusers with HIV infection and the ApoE4 allele may be at increased risk of developing dementia. L-deprenyl and a plant estrogen, Diosgenin, may have therapeutic potential in this population.

Description

Diosgenin, a steroidal saponin, can inhibit STAT3 signaling pathway. Diosgenin is an exogenous activator of Pdia3/ERp57.

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