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Shedding light on imaging cancer research: Design and synthesis of 1, 8-naphthalimide-based PRMT5-targeted
Sayed Asmat Ali Shah1, Zihao Guo1, Peng Zhang1
1Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education and School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, China.
Abstract:
Protein Arginine Methyltransferase 5 (PRMT5) is an important player in breast cancer cell activity, and innovative fluorescent ligands targeting this enzyme offer revolutionary, real-time insights into its role in cancer progression, unlocking new avenues for diagnosis and treatment. This study introduces fluorescence-labeled PRMT5 ligands, highlighting their applications in visualizing PRMT5, monitoring enzymatic activity as well as studying toxicity. Herein, we describe the design, synthesis, and cellular imaging of a series of fluorescent ligands that target PRMT5. These ligands are based on the introduction of strong and selective PRMT5 inhibitors into various fluorophores using varied linkers. Among them, compound 7 at 10 μM was shown to exhibit strong fluorescence signals against MCF-7 cells with IC50 values of 29 nM. These advancements could significantly impact tumor treatment due to their ability to specify the target and visualize PRMT5 activity in real time, particularly in breast cancer research.
Insights
New fluorescent ligands visualize Protein Arginine Methyltransferase 5 (PRMT5) in breast cancer cells. This breakthrough enables real-time monitoring of PRMT5 activity for improved cancer diagnosis and treatment strategies.
Area of Science:
- Biochemistry
- Molecular Biology
- Cancer Research
Background:
- Protein Arginine Methyltransferase 5 (PRMT5) is implicated in breast cancer progression.
- Targeting PRMT5 offers potential for novel cancer diagnostics and therapeutics.
- Real-time visualization of enzyme activity is crucial for understanding cancer biology.
Purpose of the Study:
- To design and synthesize novel fluorescent ligands targeting PRMT5.
- To evaluate the application of these ligands in cellular imaging and monitoring PRMT5 activity.
- To explore the potential of these ligands in breast cancer research.
Main Methods:
- Design and synthesis of PRMT5 inhibitors linked to fluorophores.
- Cellular imaging studies using fluorescently labeled ligands.
- Enzymatic activity assays and toxicity assessments.
Main Results:
- A series of fluorescent ligands targeting PRMT5 were successfully synthesized.
- Compound 7 demonstrated strong fluorescence signals in MCF-7 cells at 10 μM.
- Compound 7 exhibited an IC50 value of 29 nM, indicating potent inhibition.
Conclusions:
- Fluorescent PRMT5 ligands provide a powerful tool for real-time visualization and activity monitoring.
- These ligands show significant potential for advancing breast cancer diagnosis and treatment.
- The developed compounds offer new avenues for studying PRMT5 in cancer progression.
