Which of the following delivery methods is not used in gene therapy? a. virus b. nasal sprays c.

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Which of the following delivery methods is not used in gene...

Key Concepts

Drug Delivery Methods

Drug delivery methods encompass a variety of techniques used to administer therapeutic agents into the body. While methods like nasal sprays are commonly used for delivering certain pharmaceuticals due to their ease of use and rapid absorption, they are generally not employed in gene therapy because they lack the mechanisms needed for efficient and targeted gene transfer.

Electroporation

Electroporation is a physical method that uses controlled electric currents to transiently permeabilize cell membranes, facilitating the direct entry of genetic material into cells. As a nonviral approach, it offers advantages such as simplicity and the avoidance of viral-associated risks.

Liposomal Delivery

Liposomal delivery employs liposomes, which are small spherical vesicles made from lipid bilayers, to encapsulate and transport genetic material into cells. This nonviral method helps protect the genetic payload from enzymatic degradation and can provide a safer alternative to viral vectors in some applications.

Delivery Methods in Gene Therapy

Delivery methods in gene therapy refer to the systems and strategies used to transport therapeutic genetic material into target cells. These methods are critical as they determine the efficiency, safety, and specificity of gene transfer, and can be broadly categorized into viral and nonviral approaches.

Gene Therapy

Gene therapy is a medical intervention that involves modifying a person's genes to treat or prevent disease. It often entails the introduction, removal, or alteration of genetic material within a patient's cells and is used to address a range of genetic disorders, cancers, and other complex diseases.

Viral Vectors

Viral vectors utilize modified viruses that have been engineered to be replication-defective for the purpose of carrying therapeutic genes into cells. Their natural ability to infect cells and integrate genetic material makes them highly effective, although challenges include immune responses and potential insertional mutagenesis.

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