Journal
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
Volume 23, Issue 24, Pages -Publisher
MDPI
DOI: 10.3390/ijms232416190
Keywords
bone tissue engineering; 3D magnetic scaffolds; biomaterials; magnetic nanoparticles
Funding
- Ministry of Research, Innovation and Digitization, CNCS/CCCDI-UEFISCDI, within PNCDI III [PN-III-P2-2.1-PED-2019-4524, PN-III-P1-1.1-PD-2019-0937]
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The need for bone substitutes is increasing due to modern world problems, and bone cancer treatment shows promise with modern therapies and external magnetic manipulation. Mimicking bone composition and controlling the micro-environment through magnetic stimulation can promote bone regeneration.
The need for bone substitutes is a major challenge as the incidence of serious bone disorders is massively increasing, mainly attributed to modern world problems, such as obesity, aging of the global population, and cancer incidence. Bone cancer represents one of the most significant causes of bone defects, with reserved prognosis regarding the effectiveness of treatments and survival rate. Modern therapies, such as hyperthermia, immunotherapy, targeted therapy, and magnetic therapy, seem to bring hope for cancer treatment in general, and bone cancer in particular. Mimicking the composition of bone to create advanced scaffolds, such as bone substitutes, proved to be insufficient for successful bone regeneration, and a special attention should be given to control the changes in the bone tissue micro-environment. The magnetic manipulation by an external field can be a promising technique to control this micro-environment, and to sustain the proliferation and differentiation of osteoblasts, promoting the expression of some growth factors, and, finally, accelerating new bone formation. By incorporating stimuli responsive nanocarriers in the scaffold's architecture, such as magnetic nanoparticles functionalized with bioactive molecules, their behavior can be rigorously controlled under external magnetic driving, and stimulates the bone tissue formation.
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