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CellSimple™ Mitochondrial Membrane Potential Assay Kit (II)
Cellular Assay Kits
Assay Kit

CellSimple™ Mitochondrial Membrane Potential Assay Kit (II) #45898

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Inquiry Info.# 45898

Product Description

The CellSimple™ Mitochondrial Membrane Potential Assay Kit (II) is a fluorescent assay designed for use with the CellSimple™ Cell Analyzer. It detects the mitochondrial membrane potential in living cells. The kit includes the cationic dye TMRE (tetramethylrhodamine ethyl ester perchlorate) and a mitochondrial membrane potential disruptor CCCP (carbonyl cyanide 3-chlorophenylhydrazone). TMRE is a cell membrane permeable, fluorescent dye that accumulates in intact mitochondria. Depolarized or inactive mitochondria exhibit decreased membrane potential, resulting in reduced TMRE accumulation. The mean fluorescence intensity (MFI) of the red emission (561 nm LP) can be used as an indicator for mitochondrial membrane potential.

Specificity / Sensitivity

Species predicted to react based on 100% sequence homology:

All Species Expected


The CellSimple™ Cell Analyzer is a benchtop instrument that utilizes a disposable thin-film cassette and a combination of a 488 nm laser, two photomultiplier tubes (525/45 nm and 561 nm LP filters), Coulter Principle-based cell measurements, and on-board software to provide easy-to-run applications and data analysis. Data acquisition occurs within approximately 10 seconds per test. The instrument relies on disposable cassettes for sample handling, which alleviates the need for flow cell cleaning and fluidics maintenance and the instrument is small enough to be portable between the lab bench and the hood. Applications include quantitative assessments of cell viability, apoptosis, other labeled antibody markers and single and multiplexed bead-based assays for protein and cellular analysis.

Mitochondria are the main power house in cells and play important roles in processes such as steroid metabolism, calcium homeostasis, apoptosis and cellular proliferation. Mitochondrial membrane potential is a key indicator of cell health (1,2). The dissipation of mitochondrial membrane potential is established as an early indicator for apoptosis (3).

TMRE (tetramethylrhodamine, ethyl ester) is a cell membrane permeable cationic dye. In normal cells, TMRE accumulates in the mitochondria in response to their high membrane potential and negative charge. When excited at 550 nm, TMRE emits an orange-red fluorescence with a maximum at 575 nm (orange-red). Cells that have lost membrane potential or mitochondria activity cannot accumulate TMRE. Therefore, the fluorescence intensity of the orange-red emission can be used to measure mitochondrial membrane potential and is an indicator for cell health (4).

  1. Perry, S.W. et al. (2011) Biotechniques 50, 98-115.
  2. Nesti, C. et al. (2007) Biosci Rep 27, 165-71.
  3. Petit, P.X. et al. (1995) J Cell Biol 130, 157-67.
  4. O'Reilly, C.M. et al. (2003) Biophys J 85, 3350-7.

Limited Uses

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Products are labeled with For Research Use Only or a similar labeling statement and have not been approved, cleared, or licensed by the FDA or other regulatory foreign or domestic entity, for any purpose. Customer shall not use any Product for any diagnostic or therapeutic purpose, or otherwise in any manner that conflicts with its labeling statement. Products sold or licensed by CST are provided for Customer as the end-user and solely for research and development uses. Any use of Product for diagnostic, prophylactic or therapeutic purposes, or any purchase of Product for resale (alone or as a component) or other commercial purpose, requires a separate license from CST. Customer shall (a) not sell, license, loan, donate or otherwise transfer or make available any Product to any third party, whether alone or in combination with other materials, or use the Products to manufacture any commercial products, (b) not copy, modify, reverse engineer, decompile, disassemble or otherwise attempt to discover the underlying structure or technology of the Products, or use the Products for the purpose of developing any products or services that would compete with CST's products or services, (c) not alter or remove from the Products any trademarks, trade names, logos, patent or copyright notices or markings, (d) use the Products solely in accordance with CST's Product Terms of Sale and any applicable documentation, and (e) comply with any license, terms of service or similar agreement with respect to any third party products or services used by Customer in connection with the Products.

For Research Use Only. Not For Use In Diagnostic Procedures.
Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
CellSimple is a trademark of Cell Signaling Technology, Inc.