1. Metabolic Enzyme/Protease
  2. Mitochondrial Metabolism
  3. Olesoxime

Olesoxime  (Synonyms: TRO 19622; NSC 21311)

Cat. No.: HY-14796 Purity: 99.09%
COA Handling Instructions

Olesoxime (TRO 19622) is a mitochondrial-targeted neuroprotective compound with mean EC50 value for increasing cell survival is 3.2±0.2 µM.

For research use only. We do not sell to patients.

Olesoxime Chemical Structure

Olesoxime Chemical Structure

CAS No. : 22033-87-0

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Solid + Solvent
10 mM * 1 mL in DMSO
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Customer Review

Based on 1 publication(s) in Google Scholar

Top Publications Citing Use of Products
  • Biological Activity

  • Protocol

  • Purity & Documentation

  • References

  • Customer Review

Description

Olesoxime (TRO 19622) is a mitochondrial-targeted neuroprotective compound with mean EC50 value for increasing cell survival is 3.2±0.2 µM.

IC50 & Target

Mitochondrial[1]

In Vitro

Exposure to Olesoxime (TRO 19622) (ranging from 0.1 to 10 µM) at 1 h after plating significantly protects primary embryonic rat spinal MNs (that had been cultured for 3 days without brain-derived, ciliary and glia-derived neurotrophic factors) from cell death. At a concentration of 10 µM, Olesoxime (TRO 19622) maintains survival of 74±10% of the neurons supported by a combination of neurotrophic factors (brain-derived, ciliary and glia-derived neurotrophic factors). The mean EC50 in this assay is 3.2±0.2 µM. In addition to preserving MN cell bodies, Olesoxime (TRO 19622) also promotes the outgrowth of neurites. At a concentration of 1 µM, which increases cell survival by only 38%, Olesoxime (TRO 19622) increases overall neurite outgrowth per cell by 54%[1]. Olesoxime (TRO 19622) belongs to a new family of cholesterol-oximes identified for its survival-promoting activity on purified motor neurons deprived of neurotrophic factors. Olesoxime (TRO 19622) targets proteins of the outer mitochondrial membrane, concentrates at the mitochondria and prevents permeability transition pore opening mediated by, among other things, oxidative stress[2].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

In Vivo

Daily administration of Olesoxime (TRO 19622) (3 or 30 mg/kg sc) to adult mice for more than 2 months is well tolerated without toxicity or adverse effects[1]. When animals are treated orally for 5 days following the lesion, Olesoxime (TRO 19622) increases motor neuron cell body survival in a dose-dependent manner with significant rescue at the highest dose of 100 mg/kg. At this dose, motor neuron survival is 29 ±2% (n=18) corresponding to a 42% increase in survival compared with vehicle-treated animals[3]. Paclitaxel-treated rats that receive prophylactic treatment with 3 mg/kg/d or 30 mg/kg/d Olesoxime (TRO 19622) have 239±17.6 and 247±14.4 IENFs per cm, respectively. For both doses, the decreases are significantly less than the 46% decrease seen in the Paclitaxel-treated rats administered vehicle. However, both doses produce decreases (25% and 22%) that are significantly different relative to the naïve control group[4].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Clinical Trial
Molecular Weight

399.65

Formula

C27H45NO

CAS No.
Appearance

Solid

Color

White to off-white

SMILES

C[C@@]12C(CC[C@]3([H])[C@]2([H])CC[C@@]4(C)[C@@]3([H])CC[C@@]4([C@]([H])(C)CCCC(C)C)[H])=CC(CC1)=NO

Shipping

Room temperature in continental US; may vary elsewhere.

Storage
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 2 years
-20°C 1 year
Solvent & Solubility
In Vitro: 

DMSO : 50 mg/mL (125.11 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 2.5022 mL 12.5109 mL 25.0219 mL
5 mM 0.5004 mL 2.5022 mL 5.0044 mL
View the Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

  • Molarity Calculator

  • Dilution Calculator

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Mass
=
Concentration
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Volume
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Molecular Weight *

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

C1

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Volume (start)

V1

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Concentration (final)

C2

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Volume (final)

V2

In Vivo:

Select the appropriate dissolution method based on your experimental animal and administration route.

For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for in vivo experiments, it is recommended to prepare freshly and use it on the same day.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

  • Protocol 1

    Add each solvent one by one:  10% DMSO    40% PEG300    5% Tween-80    45% Saline

    Solubility: ≥ 2.5 mg/mL (6.26 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.

    Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
  • Protocol 2

    Add each solvent one by one:  10% DMSO    90% (20% SBE-β-CD in Saline)

    Solubility: ≥ 2.5 mg/mL (6.26 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.

    Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.
In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:

Dosage

mg/kg

Animal weight
(per animal)

g

Dosing volume
(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
%
DMSO +
+
%
Tween-80 +
%
Saline
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).
Calculation results:
Working solution concentration: mg/mL
Method for preparing stock solution: mg drug dissolved in μL  DMSO (Stock solution concentration: mg/mL).
The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only. If necessary, please contact MedChemExpress (MCE).
Method for preparing in vivo working solution for animal experiments: Take μL DMSO stock solution, add μL . μL , mix evenly, next add μL Tween 80, mix evenly, then add μL Saline.
 If the continuous dosing period exceeds half a month, please choose this protocol carefully.
Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.
Purity & Documentation

Purity: 99.09%

References
Animal Administration
[3][4]

Mice[3]
Eight-week-old C57bl/6 RJ mice are anesthetized using 60 mg/kg i.p. ketamine chlorohydrate. To reduce the risk of gender-related differences in response to Olesoxime (TRO 19622), only female mice are used. The right sciatic nerve is surgically exposed at mid-thigh level, and it is crushed 5 mm proximal to the trifurcation of the sciatic nerve. The nerve is crushed twice for 30 s with hemostatic forceps (width, 1.5 mm) with a 90° rotation between each crush. Sciatic nerve degeneration/regeneration is assessed over 6 weeks by measurement of the compound muscular action potential (CMAP) and histological studies of the damaged area of the sciatic nerve. Olesoxime (TRO 19622) is given subcutaneously at 0.3, 3, and 30 mg/kg. Treatments started the day of the crush injury, and they continued daily for 6 weeks. In total, 15 animals per group are used in the study. Electromyography is performed once a week for 6 weeks using a Neuromatic 2000M electromyograph. Mice are anesthetized using 100 mg/kg i.p. ketamine chlorohydrate. CMAP is measured in the gastrocnemius muscle after a single 0.2-ms stimulation of the sciatic nerve at supramaximal intensity (12.8 mA). The amplitude (millivolts) and the latency (milliseconds) of the action potential are measured.
Rats[4]
Adult male Sprague-Dawley rats (200-300 g) are used. Olesoxime (TRO 19622) or the vehicle is administered via oral gavage in a volume of 5 mL/kg. The TRO19622doses used here (3-100 mg/kg) are chosen based on prior reports of neuroprotective and analgesic activity.

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

References

Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
DMSO 1 mM 2.5022 mL 12.5109 mL 25.0219 mL 62.5547 mL
5 mM 0.5004 mL 2.5022 mL 5.0044 mL 12.5109 mL
10 mM 0.2502 mL 1.2511 mL 2.5022 mL 6.2555 mL
15 mM 0.1668 mL 0.8341 mL 1.6681 mL 4.1703 mL
20 mM 0.1251 mL 0.6255 mL 1.2511 mL 3.1277 mL
25 mM 0.1001 mL 0.5004 mL 1.0009 mL 2.5022 mL
30 mM 0.0834 mL 0.4170 mL 0.8341 mL 2.0852 mL
40 mM 0.0626 mL 0.3128 mL 0.6255 mL 1.5639 mL
50 mM 0.0500 mL 0.2502 mL 0.5004 mL 1.2511 mL
60 mM 0.0417 mL 0.2085 mL 0.4170 mL 1.0426 mL
80 mM 0.0313 mL 0.1564 mL 0.3128 mL 0.7819 mL
100 mM 0.0250 mL 0.1251 mL 0.2502 mL 0.6255 mL
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Olesoxime Related Classifications

Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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