Advances in 3D-Printed Drug Delivery and Screening Platforms for Bone Disease Therapy
Abstract
Bone diseases such as osteomyelitis, osteosarcoma, and osteoarthritis, as well as conditions caused by metabolic imbalances, including osteoporosis, require more efficient and optimized therapies. Systemic drug administration entails major disadvantages like cytotoxicity and adverse reactions, which can lead to serious complications or death. Therefore, local drug administration alternatives are currently under investigation for different pharmacological therapies. New vectors were created to improve control over administration, and 3D-printed and patient-specific drug delivery systems have been tested, revealing great potential. Moreover, 3D-printed platforms that mimic human tissues for drug testing are innovative solutions emerging for the pharmaceutical industry. Situated between in vitro and in vivo testing on human patients, they offer the advantage of reproducing functional architecture, providing results that are closer to those encountered in clinical trials performed on patients. In our article, we present the two categories of 3D systems, from the perspective of main drug groups (antibiotics, anticancer, and anti-inflammatory) as well as other categories, alongside their advantages, limitations, and their adaptations to 3D printing technologies. This article also highlights the technological drawbacks encountered in both delivery and screening systems, as well as the printing methods and materials used, including their physical and biological properties.
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