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Analysis of apoptotic cells using Beadlyte suspension arrays
Paul W Rhyne1, Jason D Scull, Lynn M Stiles
1Upstate USA, Lake Placid, NY, USA.
Biotechniques
|September 30, 2003
Summary
This study introduces a novel multiplex suspension array method for efficiently studying apoptosis pathways. The technique accurately tracks key apoptosis markers like phosphorylated Akt and caspase-3 in cell lysates.
Area of Science:
- Cell Biology
- Molecular Biology
- Biochemistry
Background:
- Apoptosis is a critical cellular process.
- Studying apoptosis pathways often requires extensive sample amounts and time-consuming techniques.
- Developing efficient methods to monitor apoptosis is essential for biological research.
Purpose of the Study:
- To present a novel multiplex suspension array approach for studying apoptosis.
- To demonstrate the utility of this method in tracking key apoptosis markers.
- To offer a faster and more sample-efficient alternative to traditional techniques.
Main Methods:
- Apoptosis was induced in Jurkat T cells using anisomycin.
- Cell lysates were analyzed using Beadlyte suspension arrays with specific microspheres for total Akt/PKB, phosphorylated Akt/PKB, active caspase-3, and single-stranded DNA (ssDNA).
- Quantification was performed using the X-MAP system.
Main Results:
- Phosphorylated Akt levels decreased significantly after 2 hours of anisomycin treatment.
- Active caspase-3 levels increased sharply by 2 hours, indicating apoptosis onset.
- Increased ssDNA levels were observed with longer anisomycin incubation, consistent with late-stage apoptosis.
Conclusions:
- Multiplex suspension arrays provide an efficient method for studying apoptosis.
- This approach allows for the analysis of apoptosis pathways from small sample volumes.
- The technique offers a valuable alternative to immunoprecipitation and Western blotting for apoptosis research.