Aptamers: versatile molecular recognition probes for cancer detection

Area of Science:

• Biotechnology
• Molecular Biology
• Nanotechnology

Background:

• Aptamers are short DNA/RNA oligonucleotides with high specificity and affinity for targets.
• Often called "chemical antibodies," aptamers offer advantages over traditional antibody probes.
• Their chemical synthesis, conjugation ease, and tissue penetration enhance clinical utility.

Purpose of the Study:

• To review recent advancements in aptamer-based platforms for cancer detection and therapeutics.
• To highlight the potential of aptamers as alternatives to antibodies in oncology.

Main Methods:

• Review of aptamer probe development for cancer diagnostics.
• Analysis of aptamer-conjugated nanomaterials for ultrasensitive assays.
• Examination of aptamer-targeted multimodal imaging probes (fluorescence, PET, SPECT, MRI).

Main Results:

• Aptamer probes combined with nanomaterials enable ultrasensitive cancer diagnostics.
• Aptamer-targeted multimodal imaging probes show promise for tumor visualization.
• Aptamers offer a versatile platform for both cancer detection and therapy.

Conclusions:

• Aptamer-based platforms demonstrate significant potential for future cancer detection and treatment.
• These molecular probes represent a rapidly advancing field with broad clinical applicability.
• Aptamers are emerging as powerful tools in the fight against cancer.