γ-Resorcyclic Acid-Based AIEgens for Illuminating Endoplasmic Reticulum
Jaypalsing Ingle1, Hiren Dedaniya1, Chaithra Mayya2
1Discipline of Chemistry, Indian Institute of Technology Gandhinagar, 382355, Palaj, Gujarat, India.
Chemistry (Weinheim an Der Bergstrasse, Germany)
|March 18, 2022
Summary
Researchers developed novel γ-resorcyclic acid-based molecules with aggregation-induced emission (AIE) properties. These molecules effectively visualize the endoplasmic reticulum (ER) in cancer and non-cancerous cells, aiding in disease research.
Area of Science:
- Chemical Biology
- Cell Biology
- Biophysical Chemistry
Background:
- The endoplasmic reticulum (ER) is crucial for numerous biological processes, but its visualization remains challenging.
- Understanding ER dynamics is vital for studying diseases like cancer.
Purpose of the Study:
- To design and synthesize novel small molecules for endoplasmic reticulum (ER) visualization.
- To investigate the aggregation-induced emission (AIE) properties of these molecules for cellular imaging.
Main Methods:
- Synthesis of γ-resorcyclic acid-based small molecules.
- Characterization of aggregation-induced emission (AIE) properties in aqueous media.
- pH- and temperature-dependent fluorescence quenching studies.
- Scanning electron microscopy for aggregation analysis.
- Live-cell imaging in HeLa cervical cancer and RPE-1 human retinal epithelial cells.
Main Results:
- Novel γ-resorcyclic acid-based molecules exhibited significant aggregation-induced emission (AIE) in water.
- AIE properties were attributed to dual intramolecular hydrogen bonding and 2D self-assembly.
- Successful sub-cellular visualization of the endoplasmic reticulum (ER) in both cancer and non-cancerous human cell lines within one hour.
- pH and temperature studies confirmed the fluorescence quenching mechanism and aggregation behavior.
Conclusions:
- Developed novel AIEgens based on γ-resorcyclic acid for ER imaging.
- These molecules offer a promising tool for studying ER chemical biology, particularly in disease states.
- Rapid and efficient ER illumination in live cells opens new avenues for biological research.
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