Antitumor photosensitizer-5

Cat No.:V78082 Purity: ≥98%
Antitumor photosensitizer-5 (Ru2) is a photosensitizer that effectively targets tumor mitochondria, with IC50 of phototoxicity of 0.3 μM for A549 cells.
Antitumor photosensitizer-5 Chemical Structure Product category: Reactive Oxygen Species
This product is for research use only, not for human use. We do not sell to patients.
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Product Description
Antitumor photosensitizer-5 (Ru2) is a photosensitizer that effectively targets tumor mitochondria, with IC50 of phototoxicity of 0.3 μM for A549 cells. Under 460 nm illumination, Antitumor photosensitizer-5 induces the generation of reactive oxygen species and depletion of NADH, which in turn leads to mitochondrial damage and activation of caspase-3, causes apoptosis and inhibits cell migration. Antitumor photosensitizer-5 may be used to prevent the growth of malignant tumors and therefore shows potential for application in photodynamic therapy.
Biological Activity I Assay Protocols (From Reference)
Targets
Nicotinamide adenine dinucleotide (NADH)[1]
ln Vitro
The fluorescence signal of biotin receptor-positive A549 cells may be greatly increased (32.08 times) by antitumor photosensitizer-5 (10 μM, 4 h), however the fluorescence signal of biotin receptor-negative BHK cells can only be slightly increased (7.35 times). [1]. In BHK and A549 cells, antitumor photosensitizer-5 (0.391-100 μM, 24 h) shows phototoxicity with very little cytotoxicity at 100 μM in the absence of light, and more than 75% of the cells survive. [1]. The antitumor photosensitizer-5 (10 μM, 4 h) and the mitochondrial probe Mito-Tracker Green have a Pearson colocalization coefficient of 0.87.[1]. Antitumor photosensitizer-5 (0.15-0.6 μM, 24 hours) Following 15 minutes of 460 nm light irradiation, the fluorescence intensity ratio of the mitochondrial membrane potential probe decreased concentration-dependently, suggesting mitochondrial damage; conversely, the fluorescence intensity of the ROS probe increased concentration-dependently, suggesting effective ROS generation [1]. In A549 cells, antitumor photosensitizer-5 (0.15-0.6 μM, 24 h) can induce apoptosis following illumination. In a dark environment, apoptosis remains essentially constant. There is an increase in DNA migration damage and activated caspase-3 under light settings. Lower the amount of NADH in cells [1]. Following 460 nm light, A549 cell migration is inhibited by antitumor photosensitizer-5 (0.15-0.6 μM, 24 h/48 h) [1].
ln Vivo
After 460 nm light irradiation, antitumor photosensitizer-5 (10 mg/kg, i.tu. once, 24 days) considerably reduces tumor growth without having a major negative effect on normal organs [1].
Cell Assay
Cell Viability Assay[1]
Cell Types: BHK, A549
Tested Concentrations: 0.195, 0.391, 0.781, 1.563, 3.125, 6.250, 12.5, 25, 50, 100 μM
Incubation Duration: 4 h in dark + 15 min in light or dark + 20 h in dark
Experimental Results: demonstrated phototoxicity in both BHK cells and A549 cells, but was more phototoxic in A549 cells(A549 cell viability < 40% under 0.391 μM while BHK cell viability < 40% under 6.25 μM), revealed minimal cytotoxicity in the absence of light with over 75 % cell viability under 100 μM.

Apoptosis Analysis[1]
Cell Types: A549
Tested Concentrations: 0.15, 0.3, 0.6 μM
Incubation Duration: 4 h in dark + 15 min in light or dark + 20 h in dark
Experimental Results: Increased the percentage of early and late apoptotic cells in A549 in a concentration-dependent manner under the 460 nm light condition. Conversely, under dark conditions, the percentage of early and late apoptotic cells in treated A549 cells remained virtually unchanged.

Cell Migration Assay [1]
Cell Types: A549
Tested Concentrations: 0.15, 0.3, 0.6 μM
Incubation Duration: 4 h in dark + 15 min in light or dark + 20 h/44 h in dark
Experimental Results: Displayed a significant concentration-dependent inhibition of wound healing in A549 cells under 460 nm light compared to cells kept in the dark.
Animal Protocol
Animal/Disease Models: BALB/c nude female mice (6–8 weeks old) , Human lung adenocarcinoma epithelial A549 cells[1]
Doses: 10 mg/kg
Route of Administration: intratumoral injection (i.tu.) for once
Experimental Results: Suppressed the tumor growth remarkably in the light group while tumors in the dark or control groups grow rapidly during the same period. Caused severe apoptosis and disruption of the tumor structure in the tumor of light group while the tumors in the other group demonstrated no obvious tissue damage, normal organs Such as the heart, liver, spleen, lung, and kidney did not exhibit significant pathological abnormalities or inflammatory lesions.
References
[1]. Guoqiang Shao, et al. Biotin-conjugated Ru(II) complexes with AIE characteristics as mitochondria-targeted photosensitizers for enhancing photodynamic therapy by disrupting cellular redox balance. European Journal of Medicinal Chemistry. 2023,Volume 264,115985.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C53H43F12N11O2P2RUS
Molecular Weight
1289.04
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 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 0.7758 mL 3.8789 mL 7.7577 mL
5 mM 0.1552 mL 0.7758 mL 1.5515 mL
10 mM 0.0776 mL 0.3879 mL 0.7758 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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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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