Related Experiment Video
Updated: Jul 20, 2025
13:34
Predicting In Vivo Payloads Delivery using a Blood-brain Tumor-barrier in a Dish
Published on: April 16, 2019
9.2K
In-situ Gels for Brain Delivery: Breaching the Barriers.
Gul Naz Fatima1, Priyanka Maurya1, Nishtha1
1Faculty of Pharmacy, Babu Banarasi Das Northern India Institute of Technology, Sector II, Dr. Akhilesh Das Nagar, Faizabad Road, Lucknow, Uttar Pradesh, 226028, India.
Current Pharmaceutical Design
|August 3, 2023
Summary
Nasal in-situ gels offer a promising route for delivering medications directly to the central nervous system. This method bypasses the blood-brain barrier, enhancing drug bioavailability for neurological therapies.
Area of Science:
- Neuroscience
- Pharmacology
- Biomedical Engineering
Background:
- The blood-brain barrier (BBB) restricts the passage of most molecules into the central nervous system (CNS), posing a significant challenge for drug delivery.
- This barrier, formed by brain capillary endothelial cells, protects the brain but limits therapeutic interventions for neurological disorders.
- Nutrients and hormones can cross the BBB via specific carrier systems, but many potential therapeutic agents, like peptides and antibodies, cannot.
Purpose of the Study:
- To explore the potential of nasal in-situ gels as a viable drug delivery system for direct CNS access.
- To evaluate the efficacy of nasal administration in overcoming the limitations imposed by the blood-brain barrier.
- To investigate the advantages of in-situ gels for enhanced drug bioavailability and therapeutic outcomes in the brain.
Main Methods:
- Utilizing in-situ gel formulations designed for mucoadhesion within the nasal cavity.
- Administering therapeutic agents, including peptides and proteins, via the nasal route.
- Leveraging the direct connection between the nasal mucosa, olfactory neurons, and the CNS.
Main Results:
- In-situ gels demonstrate mucoadhesive properties, prolonging residence time in the nasal cavity.
- The nasal route facilitates deep penetration into the nasal cavity, enabling direct transport to the CNS.
- This approach improves drug bioavailability in the brain compared to traditional systemic delivery methods.
Conclusions:
- Nasal in-situ gels provide a dependable and efficient method for delivering a wide range of medications, including large biomolecules, directly to the central nervous system.
- This drug delivery strategy holds significant potential for advancing neurological therapies by offering better drug release control and reduced systemic interference.
- The extensive vascularization and direct neural pathways of the nasal mucosa make it an advantageous route for achieving higher therapeutic impacts in brain treatments.
