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Cytisine-platinum(IV) prodrug-1

Cat No.:V133115 Purity: ≥98%
Cytisine-platinum(IV) prodrug-1 is a platinum(IV) prodrug containing the natural compound cytisine, which has anti-tumor cell proliferation activity.
Cytisine-platinum(IV) prodrug-1
Cytisine-platinum(IV) prodrug-1 Chemical Structure Product category: STING
This product is for research use only, not for human use. We do not sell to patients.
Size Price
500mg
1g
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Product Description
Cytisine-platinum(IV) prodrug-1 is a platinum(IV) prodrug containing the natural compound cytisine, which possesses anti-tumor cell proliferation activity. Cytisine-platinum(IV) prodrug-1 promotes calcium ion transfer across the IP3R1-GRP75-VDAC1 axis, leading to mitochondrial calcium overload. Cytisine-platinum(IV) prodrug-1 initiates the unfolded protein response via PERK, eIF2α, ATF4, and CHOP, thereby regulating Bcl-2 and Bax, ultimately inducing apoptosis. Cytisine-platinum(IV) prodrug-1 can induce mitochondrial dysfunction, reactive oxygen species (ROS) generation, reduced ATP synthesis, DNA damage, and S-phase cell cycle arrest. Cytisine-platinum(IV) prodrug-1 activates the cGAS-STING pathway, reduces PD-L1 expression, and induces immunogenic cell death. Cytotoxin-platinum(IV) prodrug-1 exhibits high physiological stability, efficient cell accumulation, and enhanced platinum-DNA binding capacity. Furthermore, it inhibits tumor growth in mouse models with low systemic toxicity. Cytotoxin-platinum(IV) prodrug-1 could be used in lung cancer research.
Biological Activity I Assay Protocols (From Reference)
ln Vitro
Cytotoxin-platinum(IV) prodrug-1 (compound CP12) (72 hours) effectively inhibited the activity of H226, SW1990, HepG2 and MDA-MB-231 tumor cells, with IC50 values of 0.09, 0.15, 0.21 and 0.61 μM, respectively, and the selectivity for tumor cells was much higher than that for normal PUMC-HUVEC-T1 cells [1]. Cytotoxin-platinum(IV) prodrug-1 (100 μM; 12-72 hours) showed high stability in PBS, RPMI-1640 medium and rat plasma when incubated at 37°C [1]. Cytotoxin-platinum(IV) prodrug-1 (100 μM; 16 hours) was reductively activated in H226 cells, releasing the cytotoxin derivative CYT-COOH [1]. Cytotoxin-platinum(IV) prodrug-1 (1 μM; 24 h) effectively inhibited the colony formation of H226 cells and effectively killed H226 cells [1]. Cytotoxin-platinum(IV) prodrug-1 (1 μM; 24 h) can effectively inhibit the migration and apoptosis of H226 cells[1]. Cytotoxin-platinum(IV) prodrug-1 (1 μM; 12 h) can induce strong S-phase cell cycle arrest in H226 cells, resulting in 62.19% of cells accumulating in the S phase and reducing the expression of cyclin D1[1]. Cytotoxin-platinum(IV) prodrug-1 (1 μM; 24 h) can induce endoplasmic reticulum stress in H226 cells, activate the IP3R1-GRP75-VDAC1 axis, and cause mitochondrial calcium overload, thereby exerting its antitumor activity[1]. Cytotoxin-platinum(IV) prodrug-1 (1 μM; 24 h) can induce mitochondrial dysfunction in H226 cells, characterized by reduced ATP production, collapse of mitochondrial membrane potential (MMP), increased reactive oxygen species (ROS) production, release of cytochrome C, and mitochondrial morphology disruption[1]. Cytotoxin-platinum(IV) prodrug-1 (1 μM; 24 h) can activate the cGAS-STING pathway in H226 cells, upregulate key proteins in the pathway and promote IL-6 secretion[1]. Cytisine-platinum(IV) prodrug-1 (1 μM; 24 h) can effectively induce immunogenic cell death in H226 cells, characterized by increased CRT exposure, increased release of HMGB1, LDH and ATP and decreased PD-L1 expression[1].
ln Vivo
Cytotoxin-platinum (IV) prodrug-1 (compound CP12) (2-4 mg/kg platinum; intravenous injection; once every 3 days; for a total of 6 doses) can effectively inhibit the growth of H226 lung cancer tumors in nude mice, and has no obvious hepatotoxicity or nephrotoxicity, and has minimal effect on body weight[1]. Cytotoxin-platinum (IV) prodrug-1 (2-4 mg/kg platinum; intravenous injection; once every 3 days; for a total of 6 doses) can effectively inhibit the growth of LLC lung cancer tumors in immune-normal mice, while activating the cGAS-STING pathway, inducing immunogenic cell death, and enhancing cytotoxic T cell infiltration, thereby reshaping the tumor microenvironment[1].
Cell Assay
Cell migration assay [1]
Cell Types: H226
Tested Concentrations: 1 μM
Incubation Duration: 24 hours
Experimental Results: Significantly inhibited the migration of H226 cells, resulting in a wound healing rate of only 2.44%.
Apoptosis analysis [1]
Cell Types: H226
Tested Concentrations: 1 μM
Incubation Duration: 24 h
Experimental Results: A high apoptosis rate of 80.4% was induced in H226 cells.
Cell cycle analysis [1]
Cell Types: H226
Tested Concentrations: 1 μM
Incubation Duration: 12 hours
Experimental Results: The H226 cell cycle was significantly arrested in the S phase, with 62.19% of the cells in the S phase, and the transition from the S phase to the G2 phase was completely blocked. The expression of cyclin D1 was reduced.
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Western Blot Analysis [1]
Cell Types: H226
Tested Concentrations: 1 μM
Incubation Duration: 24 h
Experimental Results: Protein expression of p-PERK, p-eIF2α, ATF4, and CHOP was significantly upregulated, while Bcl-2 was downregulated and Bax was upregulated. The expression of key components of the endoplasmic reticulum-mitochondrial calcium transport axis, IP3R1, GRP75, and VDAC1, was upregulated. This led to a significant increase in cytoplasmic and mitochondrial Ca2+ levels. 2-APB pretreatment reduced the accumulation of Ca2+ in the cytoplasm and mitochondria and partially reversed CP12-induced cytotoxicity.
Western Blot Analysis [1]
Cell Types: H226
Tested Concentrations: 1 μM
Incubation Duration: 24 hours
Experimental Results: The protein expression of cGAS, p-STING, p-IRF3 and p-TBK1 was significantly upregulated, indicating that the cGAS-STING pathway was activated. Among all the compounds tested, this compound induced the highest level of IL-6 secretion, which was 2.14 times higher than that induced by cisplatin (CDDP).
Immunofluorescence [1]
Cell Types: H226
Tested Concentrations: 1 μM
Incubation Duration: 24 hours
Experimental Results: Significantly increased CRT surface exposure and HMGB1 release in H226 cells and reduced PD-L1 protein expression.

Animal Protocol
Animal/Disease Models:BALB/c nude mice (male, 4-6 weeks old, 18 g, xenograft model derived from H226 cells) [1]
Doses: 2, 4 mg/kg platinum
Route of Administration: Intravenous injection; once every 3 days; 6 times in total
Experimental Results: Tumor growth inhibition rate (TGI) reached 59.3%. Tumor growth inhibition rate (TGI) reached 72.7%. No significant weight loss was observed; the weight of the low-dose group was comparable to that of the control group, while the weight of the high-dose group showed an increasing trend. No significant abnormalities were caused in the liver, lungs, or kidneys. Compared with cisplatin (CDDP), the accumulation of platinum in tumor tissue was significantly higher, while the accumulation of platinum in kidney tissue was significantly lower. The area of necrosis in tumor tissue was induced to increase in a concentration-dependent manner.
Animal/Disease Models:C57BL/6 (male, 5 weeks old, 18 g, LLC cell-derived xenograft model) [1]
Doses: 2, 4 mg/kg Pt
Route of Administration: Intravenous injection; once every 3 days; 6 doses in total
Experimental Results: Tumor growth inhibition rate (TGI) reached 69.1%. Tumor growth inhibition rate (TGI) reached 81.1%. No significant weight loss was observed. The cGAS-STING pathway in tumor tissue was potently activated in a dose-dependent manner. The exposure of calreticulin (CRT) and the release of high-mobility group box 1 (HMGB1) in tumor tissue were significantly increased. The infiltration of CD3+ and CD8+ T cells in the tumor was significantly increased compared with the control group and the cisplatin group.
References

[1]. Antitumor Cytisine-Platinum(IV) Prodrugs Potentiate Crosstalk between Endoplasmic Reticulum and Mitochondria through Calcium Overload Accompanied by Immunogenic Cell Death. J Med Chem. 2026;69(7):8148-8167.

These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C29H51CL2N5O6PT
Molecular Weight
831.74
Appearance
Typically exists as solids at room temperature
SMILES
[NH3][Pt](Cl)(Cl)([NH3])(OC(CCCC(N1C[C@](C2=CC=CC(N2C[C@@]3(C1)[H])=O)(C3)[H])=O)=O)OC(NCCCCCCCCCCCC)=O
HS Tariff Code
2934.99.9001
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
May dissolve in DMSO (in most cases), if not, try other solvents such as H2O, Ethanol, or DMF with a minute amount of products to avoid loss of samples
Solubility (In Vivo)
Note: Listed below are some common formulations that may be used to formulate products with low water solubility (e.g. < 1 mg/mL), you may test these formulations using a minute amount of products to avoid loss of samples.

Injection Formulations
(e.g. IP/IV/IM/SC)
Injection Formulation 1: DMSO : Tween 80: Saline = 10 : 5 : 85 (i.e. 100 μL DMSO stock solution 50 μL Tween 80 850 μL Saline)
*Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH ₂ O to obtain a clear solution.
Injection Formulation 2: DMSO : PEG300Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL DMSO 400 μLPEG300 50 μL Tween 80 450 μL Saline)
Injection Formulation 3: DMSO : Corn oil = 10 : 90 (i.e. 100 μL DMSO 900 μL Corn oil)
Example: Take the Injection Formulation 3 (DMSO : Corn oil = 10 : 90) as an example, if 1 mL of 2.5 mg/mL working solution is to be prepared, you can take 100 μL 25 mg/mL DMSO stock solution and add to 900 μL corn oil, mix well to obtain a clear or suspension solution (2.5 mg/mL, ready for use in animals).
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Injection Formulation 4: DMSO : 20% SBE-β-CD in saline = 10 : 90 [i.e. 100 μL DMSO 900 μL (20% SBE-β-CD in saline)]
*Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.
Injection Formulation 5: 2-Hydroxypropyl-β-cyclodextrin : Saline = 50 : 50 (i.e. 500 μL 2-Hydroxypropyl-β-cyclodextrin 500 μL Saline)
Injection Formulation 6: DMSO : PEG300 : castor oil : Saline = 5 : 10 : 20 : 65 (i.e. 50 μL DMSO 100 μLPEG300 200 μL castor oil 650 μL Saline)
Injection Formulation 7: Ethanol : Cremophor : Saline = 10: 10 : 80 (i.e. 100 μL Ethanol 100 μL Cremophor 800 μL Saline)
Injection Formulation 8: Dissolve in Cremophor/Ethanol (50 : 50), then diluted by Saline
Injection Formulation 9: EtOH : Corn oil = 10 : 90 (i.e. 100 μL EtOH 900 μL Corn oil)
Injection Formulation 10: EtOH : PEG300Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL EtOH 400 μLPEG300 50 μL Tween 80 450 μL Saline)


Oral Formulations
Oral Formulation 1: Suspend in 0.5% CMC Na (carboxymethylcellulose sodium)
Oral Formulation 2: Suspend in 0.5% Carboxymethyl cellulose
Example: Take the Oral Formulation 1 (Suspend in 0.5% CMC Na) as an example, if 100 mL of 2.5 mg/mL working solution is to be prepared, you can first prepare 0.5% CMC Na solution by measuring 0.5 g CMC Na and dissolve it in 100 mL ddH2O to obtain a clear solution; then add 250 mg of the product to 100 mL 0.5% CMC Na solution, to make the suspension solution (2.5 mg/mL, ready for use in animals).
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Oral Formulation 3: Dissolved in PEG400
Oral Formulation 4: Suspend in 0.2% Carboxymethyl cellulose
Oral Formulation 5: Dissolve in 0.25% Tween 80 and 0.5% Carboxymethyl cellulose
Oral Formulation 6: Mixing with food powders


Note: Please be aware that the above formulations are for reference only. InvivoChem strongly recommends customers to read literature methods/protocols carefully before determining which formulation you should use for in vivo studies, as different compounds have different solubility properties and have to be formulated differently.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 1.2023 mL 6.0115 mL 12.0230 mL
5 mM 0.2405 mL 1.2023 mL 2.4046 mL
10 mM 0.1202 mL 0.6011 mL 1.2023 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

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What is the mass of compound required to make a 10 mM stock solution in 5 ml of DMSO given that the molecular weight of the compound is 350.26 g/mol?
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What volume of a given 10 mM stock solution is required to make 25 ml of a 25 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=25 μM, V2=25 ml and V1 is the unknown:
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Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
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In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
Step 2: Enter in vivo formulation (This is only a calculator, not the exact formulation for a specific product. Please contact us first if there is no in vivo formulation in the solubility section.)
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Calculation results

Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.

Method for preparing in vivo formulation:Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
             (2) Be sure to add the solvent(s) in order.

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