Advances in Aptamer Screening and Drug Delivery

Area of Science:

• Biotechnology
• Molecular Biology
• Cancer Therapeutics

Background:

• Chemotherapy is a primary cancer treatment but causes severe systemic toxicity due to poor drug distribution and short circulation.
• Targeted drug delivery systems are needed to overcome the limitations of conventional chemotherapy.
• Aptamers, as specific binding agents, show potential for targeted delivery of chemotherapeutic drugs.

Purpose of the Study:

• To review the definition, characteristics, and screening methods of aptamers.
• To illustrate the various drug delivery strategies employing aptamers.
• To summarize recent clinical applications and future prospects of aptamers in cancer therapy.

Main Methods:

• Literature review focusing on aptamer technology and its application in drug delivery.
• Detailed illustration of aptamer-mediated drug delivery mechanisms.
• Summary of recent clinical trials and research findings on aptamers for cancer treatment.

Main Results:

• Aptamers can be screened and engineered for high specificity and affinity to target molecules.
• Aptamer-drug conjugates and aptamer-functionalized nanocarriers demonstrate enhanced drug delivery efficiency.
• Clinical studies show promising results for aptamer-based therapies in reducing toxicity and improving efficacy.

Conclusions:

• Aptamers represent a promising platform for targeted cancer chemotherapy, significantly reducing systemic side effects.
• Further research and clinical translation of aptamer-based drug delivery systems are warranted.
• Aptamer technology holds substantial long-term potential for revolutionizing cancer treatment strategies.