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Manual / Product Insert

pHrodo Phagocytosis Particle Labeling Kit for Flow Cytometry

Version: 08-14-2007
Catalog #

Citations & References

Development and validation of a flow cytometric method to evaluate phagocytosis of pHrodo™ BioParticles® by granulocytes in multiple species.

  • Authors: Neaga A, Lefor J, Lich KE, Liparoto SF, Xiao YQ,
  • Journal: J Immunol Methods (2011) -
  • PubMed ID: 21767540

Product FAQ

What cellular processes can be analyzed with a flow cytometer?


-Calcium flux: Each of the Oregon Green™ calcium indicators binds intracellular calcium with increasing affinity, providing a sensitivity range to match many applications. Oregon Green™ probes emit green fluorescence at resting levels of Ca2+ and increase their fluorescence intensity 14-fold with increasing Ca2+ concentration. The cell-permeant formulation (Cat. No. O6807) can be loaded in cell media and is compatible with flow cytometry.
-Rhodamine-based calcium indicators comprise a range of probes for large or small changes in Ca2+ concentration. They exhibit a 50-fold increase in fluorescence upon calcium binding and offer a range of wavelengths that can be used in conjunction with GFP or green-fluorescent dyes for multiplexing. Rhod-2, AM (Cat. No. R1245MP), in particular, localizes to mitochondria and can be used with flow cytometry.
-Membrane potential: A distinctive feature of the early stages of apoptosis is the disruption of the mitochondria, including changes in membrane and redox potential. We offer a range of products specifically designed to assay mitochondrial membrane potential in live cells by flow cytometry, with minimal disruption of cellular function. The MitoProbe™ family of mitochondrial stains (Cat. Nos. M34150, M34151, and M34152) provide quick, easy, and reliable flow cytometric detection of the loss of mitochondrial membrane potential that occurs during apoptosis. MitoTracker™ dyes (Cat. Nos. M7510 and M7512) are membrane potential-dependent probes for staining mitochondria in live cells. The staining pattern of MitoTracker™ dyes is retained throughout subsequent flow cytometry immunocytochemistry, DNA end labeling, in situ hybridization, or counterstaining steps. The Mitochondrial Permeability Transition Pore Assay (Cat. No. M34153) provides a more direct method of measuring mitochondrial permeability transition pore opening than assays relying on mitochondrial membrane potential alone. The mitochondrial permeability transition pore (MPTP) is a non-specific channel formed by components from the inner and outer mitochondrial membranes, and appears to be involved in the release of mitochondrial components during cell death.
-Phagocytosis: In phagocytosis, cells internalize particulate matter such as microorganisms, and this process is important for immune responses and during the clearance of apoptotic cells. Probes for studying phagocytosis include BioParticles™ indicators—bacteria and yeast labeled with fluorescent dyes.
-Tracking phagocytosis using a quench/wash-based assay can report on simple uptake, or a pH indicator can be used to monitor stages in the pathway. We have no-wash assays labeled with pHrodo™ Red or Green (Cat. Nos. A10010, P35361, P35364, P35365, P35366, and P35367) and no-wash assays for whole blood (Cat. Nos. A10025, A10026, P35381, and P35382), all suitable for flow cytometry.
-pH changes: Sensitive pH determinations can be made in a physiological range using either fluorescent intensity or ratiometric measurements. pHrodo™ dyes (Cat. Nos. P35373 and P35372) provide signal intensity modulation from pH 2 to pH 9 and with a choice of fluorescent wavelengths. Tracking internalization of fluorescent dextran is a routine method for analyzing pH changes in cellular compartments. Dextran conjugates of pHrodo™ dyes (Cat. Nos. P35368 and P10361) provide the most complete solution by allowing discrimination of vesicles from early endosomes to lysosomes, with no quench or wash required.
-Reactive oxygen species: Cells that are environmentally stressed usually contain greatly increased levels of reactive oxygen species (ROS). CellROX™ reagents are fluorogenic probes developed for the detection and quantitation of ROS in live cells. These cell-permeant reagents are non-fluorescent or very weakly fluorescent in the reduced state; however, when oxidized, they become brightly fluorescent and remain localized within the cell. We offer CellROX™ Green (Cat. No. C10492), CellROX™ Orange (Cat. No. C10493), and CellROX™ Deep Red (Cat. No. C10491) Assay Kits validated for flow cytometry.

Answer Id: E14827

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Manual / Product Insert

pHrodo Red Avidin

Version: 8 September 2011
Catalog #

Product Literature

Brochure: Attune NxT Flow Cytometer

Product Literature

Brochures & Specifications: Attune™ Brochure

Manual / Product Insert

User Guide: Attune™ Acoustic Focusing Cytometer (English)

Version: 4453328 Revision G (01.2014)
Catalog #
  • 4445315(Discontinued)
  • 4469120(Discontinued)

Product Literature

Articles & White Papers: Attune Sensitivity and Throughput

Product Literature

Brochures & Specifications:Brochure for Attune™ Acoustic Focusing Cytometer(English)