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Lonidamine

CAS# 50264-69-2

Lonidamine

2D Structure

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Lonidamine

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Chemical Properties of Lonidamine

Cas No. 50264-69-2 SDF Download SDF
PubChem ID 39562 Appearance Powder
Formula C15H10Cl2N2O2 M.Wt 321
Type of Compound N/A Storage Desiccate at -20°C
Synonyms DICA; Diclondazolic Acid; AF1890
Solubility DMSO : 50 mg/mL (155.69 mM; Need ultrasonic)
H2O : < 0.1 mg/mL (insoluble)
Chemical Name 1-[(2,4-dichlorophenyl)methyl]indazole-3-carboxylic acid
SMILES C1=CC=C2C(=C1)C(=NN2CC3=C(C=C(C=C3)Cl)Cl)C(=O)O
Standard InChIKey WDRYRZXSPDWGEB-UHFFFAOYSA-N
Standard InChI InChI=1S/C15H10Cl2N2O2/c16-10-6-5-9(12(17)7-10)8-19-13-4-2-1-3-11(13)14(18-19)15(20)21/h1-7H,8H2,(H,20,21)
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.

Biological Activity of Lonidamine

DescriptionAnticancer and antispermatogenic agent in vitro and in vivo. Inhibits cellular energy metabolism in some cells via inhibition of mitochondrial hexokinase. Also blocks CFTR Cl- channels in vitro.

Lonidamine Dilution Calculator

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Preparing Stock Solutions of Lonidamine

1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 3.1153 mL 15.5763 mL 31.1526 mL 62.3053 mL 77.8816 mL
5 mM 0.6231 mL 3.1153 mL 6.2305 mL 12.4611 mL 15.5763 mL
10 mM 0.3115 mL 1.5576 mL 3.1153 mL 6.2305 mL 7.7882 mL
50 mM 0.0623 mL 0.3115 mL 0.6231 mL 1.2461 mL 1.5576 mL
100 mM 0.0312 mL 0.1558 mL 0.3115 mL 0.6231 mL 0.7788 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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The University of Michigan
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Background on Lonidamine

Lonidamine is an orally administered small molecule hexokinase inactivator. Target: Others Lonidamine is a derivative of indazole-3-carboxylic acid, which for a long time, has been known to inhibit aerobic glycolysis in cancer cells. It seems to enhance aerobic glycolysis in normal cells, but suppress glycolysis in cancer cells. This is most likely through the inhibition of the mitochondrially bound hexokinase. Later studies in Ehrlich ascites tumor cells showed that lonidamine inhibits both respiration and glycolysis leading to a decrease in cellular ATP. Clinical trials of lonidamine in combination with other anticancer agents for a variety of cancers has begun. Lonidamine has been used in the treatment of brain tumours in combination with radiotherapy and temozolomide. Results showed that a combination of temozolomide and lonidamine at clinically achievable, low plasma concentrations, could inhibit tumour growth, and lonidamine could reduce the dose of temozolomide required for radiosensitization of brain tumours. From Wikipedia.

References:
[1]. http://en.wikipedia.org/wiki/Lonidamine

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References on Lonidamine

Modulation of lipolysis and glycolysis pathways in cancer stem cells changed multipotentiality and differentiation capacity toward endothelial lineage.[Pubmed:30962872]

Cell Biosci. 2019 Mar 27;9:30.

Cancer stem cells obtain energy demand through the activation of glycolysis and lipolysis. It seems that the use of approached targeting glycolysis and lipolysis could be an effective strategy for the inhibition of cancer stem cells. In the current experiment, we studied the potential effect of glycolysis and lipolysis inhibition on cancer stem cells differentiation and mesenchymal-epithelial-transition capacity. Cancer stem cells were enriched from human ovarian cells namely SKOV3 by using MACS technique. Cells were exposed to Lonidamine, an inhibitor of glycolysis, and TOFA, a potent inhibitor of lipolysis for 7 days in endothelial differentiation medium; EGM-2 and cell viability was studied by MTT assay. At the respective time point, the transcription level of genes participating in EMT such as Zeb-1, -2, Vimentin, Snail-1, -2 and VE-cadherin were measured by real-time PCR analysis. Our data noted that the inhibition of lipolysis and glycolysis could decrease cell viability compared to the control of cancer stem cells. The inhibition of glycolysis prohibited the expression of Zeb-1, Snails, and Vimentin while increased endothelial differentiation rate indicated by the expression of VE-cadherin. In contrast, the inhibition of lipolysis increased EMT associated genes and reduced endothelial differentiation rate by suppressing the transcription of VE-cadherin. Notably, the simultaneous inhibition of glycolysis and lipolysis had moderate effects on the transcription of EMT genes. We concluded that the modulation of the metabolic pathway of glycolysis in ovarian CSCs is more effective than the inhibition of lipolysis in the control of angiogenesis potential and stemness feature.

Effect of Differences in Metabolic Activity of Melanoma Models on Response to Lonidamine plus Doxorubicin.[Pubmed:30279592]

Sci Rep. 2018 Oct 2;8(1):14654.

Lonidamine (LND), a metabolic modulator, sensitizes DB-1 human melanoma to doxorubicin (DOX) chemotherapy by acidifying and de-energizing the tumor. This report compares the effects of LND on two human melanoma lines, DB-1 and WM983B, which exhibit different metabolic properties. Using liquid chromatography mass spectrometry and Seahorse analysis, we show that DB-1 was more glycolytic than WM983B in vitro. (31)P magnetic resonance spectroscopy (MRS) indicates that LND (100 mg/kg, i.p.) induces similar selective acidification and de-energization of WM983B xenografts in immunosuppressed mice. Over three hours, intracellular pH (pHi) of WM983B decreased from 6.91 +/- 0.03 to 6.59 +/- 0.10 (p = 0.03), whereas extracellular pH (pHe) of this tumor changed from 7.03 +/- 0.05 to 6.89 +/- 0.06 (p = 0.19). A decline in bioenergetics (beta-NTP/Pi) of 55 +/- 5.0% (p = 0.03) accompanied the decline in pHi of WM983B. Using (1)H MRS with a selective multiquantum pulse sequence and Hadamard localization, we show that LND induced a significant increase in tumor lactate levels (p < 0.01). LND pre-treatment followed by DOX (10 mg/kg, i.v.) produced a growth delay of 13.7 days in WM983B (p < 0.01 versus control), a growth delay significantly smaller than the 25.4 days that occurred with DB-1 (p = 0.03 versus WM983B). Differences in relative levels of glycolysis may produce differential therapeutic responses of DB-1 and WM983B melanomas.

Optical Redox Imaging of Lonidamine Treatment Response of Melanoma Cells and Xenografts.[Pubmed:30151646]

Mol Imaging Biol. 2018 Aug 27. pii: 10.1007/s11307-018-1258-z.

PURPOSE: Fluorescence of co-enzyme reduced nicotinamide adenine dinucleotide (NADH) and oxidized flavoproteins (Fp) provides a sensitive measure of the mitochondrial redox state and cellular metabolism. By imaging NADH and Fp, we investigated the utility of optical redox imaging (ORI) to monitor cellular metabolism and detect early metabolic response to cancer drugs. PROCEDURES: We performed ORI of human melanoma DB-1 cells in culture and DB-1 mouse xenografts to detect the redox response to Lonidamine (LND) treatment. RESULTS: For cultured cells, LND treatment for 45 min significantly lowered NADH levels with no significant change in Fp, resulting in a significant increase in the Fp redox ratio (Fp/(NADH+Fp)); 3-h prolonged treatment led to a decrease in NADH and an increase in Fp and a more oxidized redox state compared to control. Significant decrease in the mitochondrial redox capacity of LND-treated cells was observed for the first time. For xenografts, 45-min LND treatment resulted in a significant reduction of NADH content, no significant changes in Fp content, and a trend of increase in the Fp redox ratio. Intratumor redox heterogeneity was observed in both control and LND-treated groups. CONCLUSION: Our results support the utility of ORI for evaluating cellular metabolism and monitoring early metabolic response to cancer drugs.

Effective platinum(IV) prodrugs conjugated with lonidamine as a functional group working on the mitochondria.[Pubmed:29253663]

J Inorg Biochem. 2018 Mar;180:119-128.

Platinum-based anticancer drugs are one of the most widely used anticancer chemotherapeutics in oncology. Lonidamine (LND) could increase the response of human tumor cells to platinum(II) drugs in preclinical studies by working on the mitochondria. Herein, five platinum(IV) prodrugs conjugated with their potentiator LND are prepared, and most of the target complexes achieve improved anticancer activities compared with their platinum(II) precursors. Notably, Pt(NH3)2(LND)Cl3 (complex 1) derived from cisplatin achieve significantly improved anticancer activities against LNCaP cells and could trigger cancer cell death via an apoptotic pathway and the cell cycle arrest mainly at S phases. And the induction of apoptosis by complex 1 in LNCaP cells is closely associated with mitochondrial function disruption and reactive oxygen species (ROS) accumulation. Moreover, it is possessed of the ability to overcome cisplatin-resistance. Further research revealed that complex 1 could be easily reduced to release its platinum(II) precursor and axial ligand by ascorbic acid. All the results provid evidence to support the design strategy of conjugating platinum complexes with its potentiator to improve their anticancer effect.

Mitochondrial-Targeting Lonidamine-Doxorubicin Nanoparticles for Synergistic Chemotherapy to Conquer Drug Resistance.[Pubmed:29171954]

ACS Appl Mater Interfaces. 2017 Dec 20;9(50):43498-43507.

Lonidamine (LND) can act on mitochondria and inhibit energy metabolism in cancer cells and therefore has been used together with chemotherapy drugs for synergistically enhanced therapeutic efficacy. However, its use is hindered by the poor solubility and slow diffusion in the cytoplasm. To address these problems, we designed and prepared aqueous dispersible nanoparticles (NPs) containing integrated components including triphenylphosphine (TPP) to target the mitochondria of cells and LND and doxorubicin (DOX) for synergistic cancer treatment and conquering drug resistance. This design allows the NPs to concentrate in the mitochondria of cells, solve the low solubility of LND, and contain very high load of LND and DOX in comparison with previously reported drug-delivery systems based on various carrier nanomaterials. Detailed mechanism studies reveal that TPP-LND-DOX NPs could induce significant reactive oxygen species production, mitochondrial membrane potential decrease, and mitochondrial apoptosis pathway, thereby leading to great cytotoxicity in cancer cells. In vivo anticancer activities indicate that TPP-LND-DOX NPs exhibit the highest efficacy in tumor inhibition among all tested groups and show high effectiveness in drug-resistant model. This work demonstrates the potential use of our TPP-LND-DOX NPs to jointly promote the mitochondria apoptosis pathway and contribute to conquer drug resistance in cancer therapy.

Reciprocal role of SIRT6 and Hexokinase 2 in the regulation of autophagy driven monocyte differentiation.[Pubmed:28935467]

Exp Cell Res. 2017 Nov 15;360(2):365-374.

Emerging evidences suggest the impact of autophagy on differentiation but the underlying molecular links between metabolic restructuring and autophagy during monocyte differentiation remain elusive. An increase in PPARgamma, HK2 and SIRT6 expression was observed upon PMA induced monocyte differentiation. While PPARgamma positively regulated HK2 and SIRT6 expression, the latter served as a negative regulator of HK2. Changes in expression of these metabolic modelers were accompanied by decreased glucose uptake and increase in Chibby, a potent antagonist of beta-catenin/Wnt pathway. Knockdown of Chibby abrogated PMA induced differentiation. While inhibition of HK2 either by Lonidamine or siRNA further elevated PMA induced Chibby, mitochondrial ROS, TIGAR and LC3II levels; siRNA mediated knock-down of SIRT6 exhibited contradictory effects as compared to HK2. Notably, inhibition of autophagy increased HK2, diminished Chibby level and CD33 expression. In addition, PMA induced expression of cytoskeletal architectural proteins, CXCR4, phagocytosis, acquisition of macrophage phenotypes and release of pro-inflammatory mediators was found to be HK2 dependent. Collectively, our findings highlight the previously unknown reciprocal influence of SIRT6 and HK2 in regulating autophagy driven monocyte differentiation.

Mechanism of lonidamine inhibition of the CFTR chloride channel.[Pubmed:12411425]

Br J Pharmacol. 2002 Nov;137(6):928-36.

1. The cystic fibrosis transmembrane conductance regulator (CFTR) Cl(-) channel is blocked by a broad range of organic anionic compounds. Here we investigate the effects of the indazole compound Lonidamine on CFTR channels expressed in mammalian cell lines using patch clamp recording. 2. Application of Lonidamine to the intracellular face of excised membrane patches caused a voltage-dependent block of CFTR currents, with an apparent K(d) of 58 micro M at -100 mV. 3. Block by Lonidamine was apparently independent of channel gating but weakly sensitive to the extracellular Cl(-) concentration. 4. Intracellular Lonidamine led to the introduction of brief interruptions in the single channel current at hyperpolarized voltages, leading to a reduction in channel mean open time. Lonidamine also introduced a new component of macroscopic current variance. Spectral analysis of this variance suggested a blocker on rate of 1.79 micro M(-1) s(-1) and an off-rate of 143 s(-1). 5. Several point mutations within the sixth transmembrane region of CFTR (R334C, F337S, T338A and S341A) significantly weakened block of macroscopic CFTR current, suggesting that Lonidamine enters deeply into the channel pore from its intracellular end. 6. These results identify and characterize Lonidamine as a novel CFTR open channel blocker and provide important information concerning its molecular mechanism of action.

Effects of Lonidamine on murine and human tumor cells in vitro. A morphological and biochemical study.[Pubmed:6717891]

Oncology. 1984;41 Suppl 1:15-29.

Lonidamine induces in murine and human tumor cells severe morphological damage of the mitochondria and other cytoplasmic structures both 'in vitro' and 'in vivo'. Biochemical studies have demonstrated that the drug decreases oxygen consumption and lactate production. The sensitivity of human tumor cells is not related to their histotype. Lonidamine's effects on mitochondria, glycolysis, pentose phosphate pathway, and aromatase activity are discussed.

Description

Lonidamine (AF-1890), an antitumor agent, is a hexokinase, mitochondrial pyruvate carrier (Ki 2.5 μM in isolated rat liver mitochondria) and plasma membrane monocarboxylate transporters inhibitor, which also inhibits mitochondrial complex II.

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