Gambogic acid | CAS:2752-65-0 | Manufacturer ChemFaces

Gambogic acid

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Product Name	Gambogic acid
Price:	$30 / 20mg
CAS No.:	2752-65-0
Catalog No.:	CFN90172
Molecular Formula:	C₃₈H₄₄O₈
Molecular Weight:	628.75 g/mol
Purity:	>=98%
Type of Compound:	Miscellaneous
Physical Desc.:	Powder
Source:	The herbs of Garcinia hanburyi Hook. f.
Solvent:	Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc.
Download:	COA MSDS SDF Manual
Similar structural:	Comparison (Web) (SDF)
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Description:

Gambogic acid is a tissue-specific proteasome inhibitor, which has anticancer, anti-inflammatory, and anti-angiogenesis activities. Gambogic acid induces LRIG1 (leucine-rich repeat and Ig-like domain-containing-1) upregulation, which is responsible for EGFR (epidermal growth factor receptor) degradation and its downstream Akt/mTORC1 inhibition.

Targets:

In vitro:

Cell Biochem Biophys. 2013 Sep;67(1):199-206.

Gambogic acid sensitizes ovarian cancer cells to doxorubicin through ROS-mediated apoptosis.[Pubmed: 23436279]

Ovarian cancer is one human malignancy which has response portly to doxorubicin. The anti-cancer activity of Gambogic acid has been tested in in vitro and in vivo studies.
METHODS AND RESULTS:
In this study, we showed that Gambogic acid, a natural compound, could potentiate the anticancer activity of doxorubicin in ovarian cancer through ROS-mediated apoptosis. Platinum-resistant human ovarian cancer cell line (SKOV-3) was treated with Gambogic acid, doxorubicin, or the combination of both to investigate cell proliferation and apoptosis. We found that the combination of Gambogic acid and doxorubicin causes synergistic loss of cell viability in SKOV-3 cells and this synergistic effect correlated with increased cellular ROS accumulation. Moreover, in vivo results showed that Gambogic acid and doxorubicin combination resulted in a synergistic suppressing effect on tumor growth in ovarian cancer mice model.
CONCLUSIONS:
Taken together, the results suggested that doxorubicin in combination with Gambogic acid might provide a promising therapeutic strategy to enhance chemosensitivity of ovarian cancer to doxorubicin.

Cancer Res. 2008 Mar 15;68(6):1843-50.

Gambogic acid inhibits angiogenesis and prostate tumor growth by suppressing vascular endothelial growth factor receptor 2 signaling.[Pubmed: 18339865 ]

Gambogic acid (GA), the main active compound of Gamboge hanburyi, has been previously reported to activate apoptosis in many types of cancer cell lines by targeting transferrin receptor and modulating nuclear factor-kappaB signaling pathway. Whether GA inhibits angiogenesis, which is crucial for cancer and other human diseases, remains unknown.
METHODS AND RESULTS:
Here, we found that GA significantly inhibited human umbilical vascular endothelial cell (HUVEC) proliferation, migration, invasion, tube formation, and microvessel growth at nanomolar concentration. In a xenograft prostate tumor model, we found that GA effectively inhibited tumor angiogenesis and suppressed tumor growth with low side effects using metronomic chemotherapy with GA. GA was more effective in activating apoptosis and inhibiting proliferation and migration in HUVECs than in human prostate cancer cells (PC3), suggesting GA might be a potential drug candidate in cancer therapy through angioprevention with low chemotoxicity. Furthermore, we showed that GA inhibited the activations of vascular endothelial growth factor receptor 2 and its downstream protein kinases, such as c-Src, focal adhesion kinase, and AKT.
CONCLUSIONS:
Together, these data suggest that GA inhibits angiogenesis and may be a viable drug candidate in antiangiogenesis and anticancer therapies.

In vivo:

Mediators Inflamm. 2014;2014:195327.

Potent anti-inflammatory and antiproliferative effects of gambogic acid in a rat model of antigen-induced arthritis.[Pubmed: 24623960]

We have previously reported a continuous activation of caspase-1 and increased interleukin (IL)-1β levels in early rheumatoid arthritis (RA). These observations raised the hypothesis that drugs targeting the IL-1β pathway, in addition to tumour necrosis factor (TNF), may be particularly effective for early RA treatment. We have recently identified Gambogic acid as a promising therapeutic candidate to simultaneously block IL-1β and TNF secretion. Our main goal here was to investigate whether Gambogic acid administration was able to attenuate inflammation in antigen-induced arthritis (AIA) rats.
METHODS AND RESULTS:
Gambogic acid was administered to AIA rats in the early and late phases of arthritis. The inflammatory score, ankle perimeter, and body weight were evaluated during the period of treatment. Rats were sacrificed after 19 days of disease progression and paw samples were collected for histological and immunohistochemical evaluation. We found that inflammation in joints was significantly suppressed following Gambogic acid administration. Histological and immunohistochemical evaluation of treated rats revealed normal joint structures with complete abrogation of the inflammatory infiltrate and cellular proliferation.
CONCLUSIONS:
Our results suggest that Gambogic acid has significant anti-inflammatory properties and can possibly constitute a prototype anti-inflammatory drug with therapeutic efficacy in the treatment of inflammatory diseases such as RA.

Gambogic acid Description

Source:	The herbs of Garcinia hanburyi Hook. f.
Solvent:	Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc.
Storage:	Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to 24 months(2-8C). Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20C. Generally, these will be useable for up to two weeks. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour. Need more advice on solubility, usage and handling? Please email to: service@chemfaces.com
After receiving:	The packaging of the product may have turned upside down during transportation, resulting in the natural compounds adhering to the neck or cap of the vial. take the vial out of its packaging and gently shake to let the compounds fall to the bottom of the vial. for liquid products, centrifuge at 200-500 RPM to gather the liquid at the bottom of the vial. try to avoid loss or contamination during handling.

Kinase Assay:

Biochim Biophys Acta. 2014 Dec;1840(12):3374-84.

Gambogic acid induced oxidative stress dependent caspase activation regulates both apoptosis and autophagy by targeting various key molecules (NF-κB, Beclin-1, p62 and NBR1) in human bladder cancer cells.[Pubmed: 25218692]

Gambogic acid is a potent anticancer agent and has been found effective against various types of cancer cells.
METHODS AND RESULTS:
The present study was addressed to explore the cytotoxic potential of Gambogic acid and the modulation of autophagy and apoptosis in bladder cancer cells T24 and UMUC3. Gambogic acid induces reactive oxygen species, and elicits a strong autophagic response by activating JNK at earlier time points, which is inhibited at later time points with the activation of caspases. Reactive oxygen species mediated caspase activation causes degradation of autophagic proteins, cleavage of molecular chaperones (Hsp90 and GRP-78) and adaptor proteins (p62 and NBR1). Gambogic acid treatment results in mitochondrial hyperpolarization and cytochrome c release and activates caspases involved in both extrinsic and intrinsic apoptotic pathways. Gambogic acid abrogates NF-κB activation by ROS mediated inhibition of IκB-α phosphorylation. Functionally Gambogic acid induced autophagy acts as a strong cell survival response and delays caspase activation.
CONCLUSIONS:
Our study provides the new insights about the mechanism of Gambogic acid induced modulation of autophagy and apoptosis in bladder cancer cells. All the molecular events responsible for Gambogic acid induced autophagy and apoptosis are mediated by reactive oxygen species. Since Gambogic acid targets various cell survival molecules therefore, it may be considered as a potential anticancer agent against bladder cancer.

Biochem Biophys Res Commun. 2013 Jun 7;435(3):397-402.

Gambogic acid induces EGFR degradation and Akt/mTORC1 inhibition through AMPK dependent-LRIG1 upregulation in cultured U87 glioma cells.[Pubmed: 23665322]

Glioblastoma multiforme (GBM) is the most common malignant tumor in adults' central nervous system (CNS). The development of novel anti-cancer agents for GBM is urgent. In the current study, we found that Gambogic acid induced growth inhibition and apoptosis in cultured U87 glioma cells, which was associated with Akt/mTORC1 (mTOR complex 1) signaling in-activation.
METHODS AND RESULTS:
To restore Akt activation by introducing a constitutively active (CA) Akt attenuated Gambogic acid-induced cytotoxicity against U87 cells. For mechanism study, we found that Gambogic acid induced LRIG1 (leucine-rich repeat and Ig-like domain-containing-1) upregulation, which was responsible for EGFR (epidermal growth factor receptor) degradation and its downstream Akt/mTORC1 inhibition. Further, we provided evidence to support that AMPK (AMP-activated protein kinase) activation mediated Gambogic acid-induced LRIG1 upregulation, U87 cell apoptosis and growth inhibition, while AMPK inhibition by shRNA or compound C reduced Gambogic acid-induced EGFR/Akt inhibition and cytotoxicity in U87 cells.
CONCLUSIONS:
We here proposed novel signaling mechanism mediating Gambogic acid-induced cytotoxic effects in glioma cells.

Cell Rep. 2013 Jan 31;3(1):211-22.

Gambogic acid is a tissue-specific proteasome inhibitor in vitro and in vivo.[Pubmed: 23260670 ]

Gambogic acid (GA) is a natural compound derived from Chinese herbs that has been approved by the Chinese Food and Drug Administration for clinical trials in cancer patients; however, its molecular targets have not been thoroughly studied.
METHODS AND RESULTS:
Here, we report that GA inhibits tumor proteasome activity, with potency comparable to bortezomib but much less toxicity. First, GA acts as a prodrug and only gains proteasome-inhibitory function after being metabolized by intracellular CYP2E1. Second, GA-induced proteasome inhibition is a prerequisite for its cytotoxicity and anticancer effect without off-targets.
CONCLUSIONS:
Finally, because expression of the CYP2E1 gene is very high in tumor tissues but low in many normal tissues, GA could therefore produce tissue-specific proteasome inhibition and tumor-specific toxicity, with clinical significance for designing novel strategies for cancer treatment.

Cell Research:

Clin Cancer Res. 2014 Jan 1;20(1):151-63.

Gambogic acid induces apoptosis in imatinib-resistant chronic myeloid leukemia cells via inducing proteasome inhibition and caspase-dependent Bcr-Abl downregulation.[Pubmed: 24334603]

翻译关闭即时翻译英语中文德语检测语言中文(简体)英语日语翻译 Gambogic acid, a small molecule derived from Chinese herb gamboges, has been approved for phase II clinical trial for cancer therapy by the Chinese Food and Drug Administration (FDA). In this study, we investigated the effect of Gambogic acid on cell survival or apoptosis in CML cells bearing Bcr-Abl-T315I or wild-type Bcr-Abl.
METHODS AND RESULTS:
CML cell lines (KBM5, KBM5-T315I, and K562), primary cells from patients with CML with clinical resistance to imatinib, and normal monocytes from healthy volunteers were treated with Gambogic acid, imatinib, or their combination, followed by measuring the effects on cell growth, apoptosis, and signal pathways. The in vivo antitumor activity of Gambogic acid and its combination with imatinib was also assessed with nude xenografts. Gambogic acid induced apoptosis and cell proliferation inhibition in CML cells and inhibited the growth of imatinib-resistant Bcr-Abl-T315I xenografts in nude mice. Our data suggest that GA-induced proteasome inhibition is required for caspase activation in both imatinib-resistant and -sensitive CML cells, and caspase activation is required for Gambogic acid-induced Bcr-Abl downregulation and apoptotic cell death. <
CONCLUSIONS:
These findings suggest an alternative strategy to overcome imatinib resistance by enhancing Bcr-Abl downregulation with the medicinal compound Gambogic acid, which may have great clinical significance in imatinib-resistant cancer therapy.

	1 mg	5 mg	10 mg	20 mg	25 mg
1 mM	1.5905 mL	7.9523 mL	15.9046 mL	31.8091 mL	39.7614 mL
5 mM	0.3181 mL	1.5905 mL	3.1809 mL	6.3618 mL	7.9523 mL
10 mM	0.159 mL	0.7952 mL	1.5905 mL	3.1809 mL	3.9761 mL
50 mM	0.0318 mL	0.159 mL	0.3181 mL	0.6362 mL	0.7952 mL
100 mM	0.0159 mL	0.0795 mL	0.159 mL	0.3181 mL	0.3976 mL

CFN92086	Isogambogenin	173938-23-3	614.8	C₃₈H₄₆O₇
CFN92088	Desoxygambogenin	173614-93-2	600.8	C₃₈H₄₈O₆
CFN92096	Isogambogenic acid	887923-47-9	630.8	C₃₈H₄₆O₈
CFN92097	Gambogenic acid	173932-75-7	630.8	C₃₈H₄₆O₈
CFN95450	10-Methoxygambogenic acid	2095102-72-8	662.8	C₃₉H₅₀O₉
CFN90172	Gambogic acid	2752-65-0	628.75	C₃₈H₄₄O₈
CFN90175	Neogambogic acid	93772-31-7	646.77	C₃₈H₄₆O₉
CFN95440	Isogambogic acid	149655-52-7	628.8	C₃₈H₄₄O₈
CFN92089	Gambogin	173792-67-1	598.8	C₃₈H₄₆O₆
CFN92098	Epigambogic acid	887606-04-4	628.8	C₃₈H₄₄O₈