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Intrathecal Delivery of Antisense Oligonucleotides in the Rat Central Nervous System
Published on: October 29, 2019
Therapeutic antisense oligonucleotides against cancer: hurdling to the clinic
Pedro M D Moreno1, Ana P Pêgo2
1Instituto de Engenharia Biomédica, Nanobiomaterials for Targeted Therapies Group Porto, Portugal.
Abstract:
Under clinical development since the early 90's and with two successfully approved drugs (Fomivirsen and Mipomersen), oligonucleotide-based therapeutics has not yet delivered a clinical drug to the market in the cancer field. Whilst many pre-clinical data has been generated, a lack of understanding still exists on how to efficiently tackle all the different challenges presented for cancer targeting in a clinical setting. Namely, effective drug vectorization, careful choice of target gene or synergistic multi-gene targeting are surely decisive, while caution must be exerted to avoid potential toxic, often misleading off-target-effects. Here a brief overview will be given on the nucleic acid chemistry advances that established oligonucleotide technologies as a promising therapeutic alternative and ongoing cancer related clinical trials. Special attention will be given toward a perspective on the hurdles encountered specifically in the cancer field by this class of therapeutic oligonucleotides and a view on possible avenues for success is presented, with particular focus on the contribution from nanotechnology to the field.
Insights
Oligonucleotide therapeutics show promise for cancer treatment but face challenges in delivery and targeting. Nanotechnology offers potential solutions to overcome these hurdles for effective cancer therapy.
Area of Science:
- Biotechnology
- Molecular Oncology
- Drug Development
Background:
- Oligonucleotide therapeutics have advanced significantly since the 1990s, with approved drugs in other fields.
- Despite pre-clinical data, clinical translation of oligonucleotide-based cancer therapies remains limited.
- Challenges include effective drug delivery, target gene selection, and mitigating off-target effects.
Purpose of the Study:
- To review advances in oligonucleotide chemistry for therapeutic applications.
- To examine ongoing clinical trials of oligonucleotide therapeutics in oncology.
- To identify specific hurdles and potential solutions for oligonucleotide-based cancer treatment.
Main Methods:
- Literature review of nucleic acid chemistry advancements.
- Analysis of ongoing clinical trials in cancer oligonucleotide therapy.
- Exploration of nanotechnology applications in oligonucleotide delivery.
Main Results:
- Nucleic acid chemistry has enabled oligonucleotide technologies as a therapeutic alternative.
- Several clinical trials are investigating oligonucleotide-based cancer treatments.
- Nanotechnology presents a promising avenue for improving oligonucleotide delivery and efficacy in cancer.
Conclusions:
- Oligonucleotide therapeutics hold potential for cancer treatment but require overcoming significant challenges.
- Effective vectorization, precise gene targeting, and minimizing toxicity are crucial for clinical success.
- Nanotechnology integration is key to advancing oligonucleotide-based cancer therapies.
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