MitoPerOx (solution) 

MitoPerOx (solution) is a mitochondrial-targeted, lipid peroxidation-indicating fluorescent probe with BODIPY581/591 fluorophores. The triphenylphosphine cation (TPP+) of MitoPerOx can be selectively enriched in mitochondria (depending on membrane potential) and can be used to detect lipid peroxidation in the inner mitochondrial membrane. Under the action of lipid peroxides, the BODIPY581/591 fluorophores of MitoPerOx shift their emission wavelength from 590 nm (reduced state) to 520 nm (oxidized state), and ratiometric detection can be performed at an excitation wavelength of 488 nm. MitoPerOx can specifically monitor the peroxidation of mitochondrial phospholipids (especially cardiolipin) and is used in the study of oxidative stress-related diseases (such as aging, neurodegenerative diseases, and mitochondrial dysfunction)^[1][2].
Solution Concentration: 2 mM

1. Solution preparation^[2]
1.1 Stock solution
Storage: Store at -20°C or -80°C in dark after aliquoting. Avoid repeated freezing and thawing.
1.2 Preparation of working solution
Dilute with PBS or cell culture medium (optimized according to the experiment). The corresponding stock solution can be diluted according to the actual situation. Note that if the solvent is DMSO, the cytotoxicity of DMSO must be considered, and a solvent control should be prepared; if the solvent is pure water, the working solution needs to be filtered and sterilized before adding cells.
Note: The working solution should be prepared and used immediately. Keep it away from light.

MitoPerOx Assay Protocol Cell Culture:
Cells (e.g., HEK293 or fibroblasts) are plated on coverslips in 35 mm dishes and cultured at 37 °C, 5% CO2.
Probe Preparation: Add 100 nM MitoPerOx to phenol red-free medium and incubate at 37 °C for 30 min in the dark.
Washing: Discard medium and wash cells three times with PBS.
Induce oxidative stress: Treat cells with 500 μM H₂O₂ in Hepes-Tris buffer for 15-30 min. Fluorescence imaging: Confocal microscopy (excitation wavelength 488 nm) was used to collect emission light at 520 nm (oxidized state) and 590 nm (reduced state), and the extent of lipid peroxidation was quantified by calculating the 520/590 nm ratio.

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

760.47

C₄₂H₃₈BBrF₂N₃OP

1392820-50-6

O=C(CCC1=CC=C2[N-]1[B+3]([F-])([N]3=C(C=CC3=C2)/C=C/C=C/C4=CC=CC=C4)[F-])NCC[P+](C5=CC=CC=C5)(C6=CC=CC=C6)C7=CC=CC=C7.[Br-]

Room temperature in continental US; may vary elsewhere.

Please store the product under the recommended conditions in the Certificate of Analysis.

• [1]. Lyamzaev KG, Sumbatyan NV, Nesterenko AM, Kholina EG, Voskoboynikova N, Steinhoff HJ, Mulkidjanian AY, Chernyak BV. MitoCLox: A Novel Mitochondria-Targeted Fluorescent Probe for Tracing Lipid Peroxidation. Oxid Med Cell Longev. 2019 Nov 13;2019:9710208.  [Content Brief]

  [2]. Prime TA, et, al. A ratiometric fluorescent probe for assessing mitochondrial phospholipid peroxidation within living cells. Free Radic Biol Med. 2012 Aug 1;53(3):544-53.  [Content Brief]