Related Experiment Videos
A manual multiplex immunofluorescence method for investigating neurodegenerative diseases
Alexander J Ehrenberg1, Dulce Ovando Morales2, Antonia M H Piergies2
1University of California, San Francisco, Memory and Aging Center, Weill Institute for Neurosciences; San Francisco, CA, USA; University of California, Berkeley, Helen Wills Neuroscience Institute; Berkeley, CA, USA; University of California, Berkeley, Dept. of Integrative Biology; Berkeley, CA, USA.
Journal of Neuroscience Methods
|April 4, 2020
Summary
Multiplex immunostaining for neurodegenerative diseases is now feasible in standard labs. A new protocol using beta-mercaptoethanol and SDS effectively strips antibodies, enabling multiple stains on human postmortem tissue while preserving integrity.
Area of Science:
- Neuroscience
- Biochemistry
- Pathology
Background:
- Neurodegenerative diseases are characterized by protein aggregate deposits in vulnerable cells.
- Simultaneous in situ localization of multiple targets is crucial for understanding pathogenic pathways.
- Effective antibody stripping is a major challenge for multiplex immunostaining in standard laboratories.
Purpose of the Study:
- To develop protocols for multiplex localization of neurodegenerative processes without specialized equipment.
- To evaluate antibody stripping techniques for their efficacy in standard lab settings.
- To recommend quality control steps for validating stripping efficacy and minimizing false positives.
Main Methods:
- Evaluation of various antibody stripping techniques.
- Development of a protocol using beta-mercaptoethanol and SDS.
- Extensive testing on human postmortem tissue.
- Incorporation of quality control steps for validation.
Main Results:
- A protocol using beta-mercaptoethanol and SDS consistently enables reliable antibody stripping.
- The method preserves tissue adhesion and antigen integrity across multiple staining rounds.
- It minimizes cross-reactivity and false positives, even with suboptimal tissue and aggregated proteins.
Conclusions:
- Multiplex immunofluorescence is feasible for studying neurodegenerative diseases in standard laboratories.
- The developed protocol is effective for human postmortem tissue, including challenging samples.
- Careful evaluation of stripping parameters during optimization and validation is essential.