Neural stem cell specific fluorescent chemical probe binding to FABP7

Area of Science:

• Biomedical research
• Optical imaging
• Stem cell biology

Background:

• Fluorescent small molecules are crucial for advanced optical imaging in biomedical research.
• Developing specific probes for neural stem cells is essential for understanding development and disease.

Purpose of the Study:

• To develop and characterize a novel fluorescent small molecule for specific detection of neural stem cells.
• To identify the molecular target of the developed compound.

Main Methods:

• High-throughput/content screening of a diversity-oriented fluorescence library.
• Synthesis and characterization of a boron-dipyrromethane (BODIPY) derivative, CDr3.
• Proteomic analysis to identify the binding target of CDr3.

Main Results:

• A novel neural stem cell-specific fluorescent compound, CDr3, was identified.
• CDr3 specifically detects living human and mouse neural stem cells.
• Fatty acid binding protein 7 (FABP7) was identified as the cytoplasmic binding target of CDr3, highly expressed in neural stem cells.

Conclusions:

• CDr3 is a valuable and specific chemical tool for identifying and studying neural stem cells.
• The discovery of CDr3 and its target FABP7 advances neural stem cell research and applications.
• This fluorescent probe facilitates research in neurodevelopment and neurological disorders.