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Hypochlorous Acid-Activated Multifunctional Fluorescence Platform for Depression Therapy and Antidepressant Efficacy
Xin Wang1, Ruiyuan Wang1, Qi Ding1
1College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Institutes of Biomedical Sciences, Shandong Normal University, Jinan 250014, People's Republic of China.
This study introduces a novel fluorescence platform for depression, enabling simultaneous drug delivery and efficacy assessment. This approach offers a more objective diagnosis and effective treatment with fewer side effects.
Area of Science:
- Biomedical Engineering
- Neuroscience
- Pharmacology
Background:
- Current depression diagnosis lacks objective criteria, relying on symptoms.
- Existing antidepressant treatments have side effects and slow onset.
- Depression involves neurotransmitter decline, inflammation, and oxidative stress.
Purpose of the Study:
- To develop a multifunctional fluorescence platform for depression diagnosis and treatment.
- To enable simultaneous delivery of neurotransmitters/antidepressants and efficacy evaluation.
- To address the need for objective diagnostic criteria and effective therapies for depression.
Main Methods:
- Fabrication of a hypochlorous acid (HClO)-triggered multifunctional fluorescence platform (MB-Rs).
- MB-Rs covalently link methylene blue (MB) with neurotransmitters or antidepressants via a urea linkage.
- MB-Rs release active compounds and MB upon encountering HClO, a marker of depression.
Main Results:
- MB-Rs demonstrated simultaneous neurotransmitter/antidepressant delivery and efficacy evaluation in a mouse model.
- The platform showed improved antidepressant response and reduced side effects compared to clinical treatments.
- HClO-induced fluorescence from MB-Rs enabled successful evaluation of antidepressant efficacy.
Conclusions:
- The developed MB-Rs platform offers a promising approach for objective depression diagnosis.
- This platform provides a more effective therapeutic strategy with potentially fewer side effects.
- MB-Rs represent a significant advancement in integrated depression management.

