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Updated: Feb 8, 2026
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Chemical Amputation and Regeneration of the Pharynx in the Planarian Schmidtea mediterranea
Published on: March 26, 2018
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Quantification of Neurotransmitters from Intact and Regenerating Planarians Using UHPLC-MS/SRM Method
Kannan Rangiah1,2, Dasaradhi Palakodeti3
1Food Safety & Analytical Quality Control Laboratory, CSIR-Central Food Technological Research Institute (CFTRI), Mysore, 570020, Karnataka, India. kannan.rf0829@cftri.res.in.
Methods in Molecular Biology (Clifton, N.J.)
|June 20, 2018
Summary
This study introduces a new method for measuring neurotransmitters (NTs) in planarians, crucial for understanding regeneration. The assay quantifies 16 NTs in both intact and regenerating flatworms.
Area of Science:
- Developmental Biology
- Stem Cell Biology
- Neuroscience
- Analytical Chemistry
Background:
- The freshwater planarian Schmidtea mediterranea is a key model organism for studying regeneration due to its remarkable ability to regrow large body parts.
- Understanding the molecular mechanisms underlying planarian regeneration requires precise quantification of metabolites, including neurotransmitters (NTs).
- Existing methods may lack the sensitivity or scope for comprehensive NT analysis in planarian models.
Purpose of the Study:
- To develop and validate a sensitive assay for the absolute quantification of neurotransmitters in planarians.
- To apply the assay for simultaneous measurement of multiple neurotransmitters in both intact and regenerating planarian specimens.
- To provide a foundational tool for investigating the role of neurotransmitters in planarian regeneration.
Main Methods:
- Development of a stable isotope dilution ultrahigh performance liquid chromatography/mass spectrometry/selected reaction monitoring (UHPLC-MS/SRM) assay.
- Simultaneous quantification of 16 distinct neurotransmitters.
- Application of the assay to both intact and regenerating planarian samples.
Main Results:
- The developed UHPLC-MS/SRM assay provides sensitive and quantitative measurements of neurotransmitters in planarians.
- The method successfully quantified 16 different neurotransmitters.
- The assay is applicable to both homeostatic and regenerative states in planarians.
Conclusions:
- A robust analytical method for neurotransmitter quantification in planarians has been established.
- This assay is essential for future research into the biochemical pathways governing planarian regeneration.
- The findings enable deeper insights into the neurobiology of stem cell-mediated regeneration.
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