Abstract
Nucleic acid molecules have emerged as versatile tools with promising utility in a variety of biochemical, diagnostic, and therapeutic applications. A parenteral administration of a nucleic acid is inconvenient because of pain, fear, and risks being associated with this type of application. The intestinal epithelium is considered to be an attractive site for oral delivery of therapeutic genes.
The successful development of oral nucleic acid delivery systems is challenged by a variety of barriers encountered with the GI tract. The intestinal mucosa is both a physical and a biochemical barrier, separating the external environment from the internal milieu of the body.
Despite the enormous potential of gene therapy, safe and efficient delivery of nucleic acid into cells is still a dominant task in current biotechnological research. The majority of nucleic acid therapeutics are to a higher degree dependent on delivery systems for successful therapeutic intervention than conventional drugs.
Regarding safety concerns, non-viral gene delivery vehicles that have the required efficiency and safety for use in human gene therapy are being widely investigated as possible alternatives. Non-viral systems show a significantly lower safety risk and can be tailored to specific therapeutic needs.
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Martien, R. (2009). Oral Delivery of Nucleic Acid Drugs. In: Bernkop-Schnürch, A. (eds) Oral Delivery of Macromolecular Drugs. Springer, New York, NY. https://doi.org/10.1007/978-1-4419-0200-9_12
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