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Bone Tissue Engineering: Opportunities and Challenges

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Molecular Pathology, Diagnostics, and Therapeutics".

Deadline for manuscript submissions: 30 August 2024 | Viewed by 425

Special Issue Editors


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Guest Editor
Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, 44121 Ferrara, Italy
Interests: stem cells differentiation; material; scaffold; bone; tissue regeneration; signalling; infection; tumour

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Guest Editor
Department of Medical Sciences, University of Ferrara, 64/b, Fossato di Mortara Street, 44121 Ferrara, Italy
Interests: regenerative medicine; biomaterials; stem cells; bone tissue engineering; cell biology
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Special Issue Information

Dear Colleagues,

Tissue engineering (TE) aims to repair and regenerate tissues damaged by injury or disease. To this end, bone grafting has emerged as a viable treatment modality. Biomaterials play a key role in this reparative strategy. The burgeoning science of nanomaterials as nanomedicines is growing. Innovative materials can be functionalized with several bioactive molecules and ions, allowing them to be incorporated into and improve different scaffolds used in regenerative medicine. Novel biological therapies that can effectively treat bone fracturing or degeneration are of great significance in regenerative medicine. In addition, mesenchymal stem cells (MSCs) isolated from bone marrow (BM-MSCs), adipose tissue (AD-MSCs), and umbilical cord (UC-MSCs) show considerable promise for use in bone repair. The microenvironment, including that of the immune system, influences the state of stem cells in the context of tissue repair and regeneration of bone tissue. Although extensive strides have been made in our collective understanding of the processes governing bone and tissue regeneration within the microenvironment, effective clinical translation of these mechanisms remains a challenge. These materials, both alone and in combination with MSCs, may be promising in tissue regeneration.

Dr. Elisa Mazzoni
Dr. Maria Rosa Iaquinta
Guest Editors

Manuscript Submission Information

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Keywords

  • material
  • biocompatibility
  • scaffold
  • regeneration
  • bone
  • osteoinductivity
  • tissue
  • stem cells
  • microenvironment processes
 

Published Papers (1 paper)

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Research

18 pages, 5383 KiB  
Article
Bone Regenerative Effect of Injectable Hypoxia Preconditioned Serum-Fibrin (HPS-F) in an Ex Vivo Bone Defect Model
by Jun Jiang, Lynn Röper, Finja Fuchs, Marc Hanschen, Sandra Failer, Sarah Alageel, Xiaobin Cong, Ulf Dornseifer, Arndt F. Schilling, Hans-Günther Machens and Philipp Moog
Int. J. Mol. Sci. 2024, 25(10), 5315; https://0-doi-org.brum.beds.ac.uk/10.3390/ijms25105315 - 13 May 2024
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Abstract
Biofunctionalized hydrogels are widely used in tissue engineering for bone repair. This study examines the bone regenerative effect of the blood-derived growth factor preparation of Hypoxia Preconditioned Serum (HPS) and its fibrin-hydrogel formulation (HPS-F) on drilled defects in embryonic day 19 chick femurs. [...] Read more.
Biofunctionalized hydrogels are widely used in tissue engineering for bone repair. This study examines the bone regenerative effect of the blood-derived growth factor preparation of Hypoxia Preconditioned Serum (HPS) and its fibrin-hydrogel formulation (HPS-F) on drilled defects in embryonic day 19 chick femurs. Measurements of bone-related growth factors in HPS reveal significant elevations of Osteopontin, Osteoprotegerin, and soluble-RANKL compared with normal serum (NS) but no detection of BMP-2/7 or Osteocalcin. Growth factor releases from HPS-F are measurable for at least 7 days. Culturing drilled femurs organotypically on a liquid/gas interface with HPS media supplementation for 10 days demonstrates a 34.6% increase in bone volume and a 52.02% increase in bone mineral density (BMD) within the defect area, which are significantly higher than NS and a basal-media-control, as determined by microcomputed tomography. HPS-F-injected femur defects implanted on a chorioallantoic membrane (CAM) for 7 days exhibit an increase in bone mass of 123.5% and an increase in BMD of 215.2%, which are significantly higher than normal-serum-fibrin (NS-F) and no treatment. Histology reveals calcification, proteoglycan, and collagen fiber deposition in the defect area of HPS-F-treated femurs. Therefore, HPS-F may offer a promising and accessible therapeutic approach to accelerating bone regeneration by a single injection into the bone defect site. Full article
(This article belongs to the Special Issue Bone Tissue Engineering: Opportunities and Challenges)
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