Asymmetric SIS membranes specifically loaded with exosomes through the modification of engineered recombinant peptides for guide bone regeneration

Author(s):  
Shiqing Ma ◽  
Yifan Zhao ◽  
Yilin Yang ◽  
Yuzhu Mu ◽  
Lei Zhang ◽  
...  
2010 ◽  
Vol 26 (3) ◽  
pp. 233
Author(s):  
Yeon Kyung Lee ◽  
Ji Eun Kim ◽  
So Hee Nam ◽  
Sun il Choi ◽  
Eon Pil Lee ◽  
...  

2017 ◽  
Vol 23 (17-18) ◽  
pp. 874-890 ◽  
Author(s):  
Yoke Chin Chai ◽  
Johanna Bolander ◽  
Ioannis Papantoniou ◽  
Jennifer Patterson ◽  
Jef Vleugels ◽  
...  

2006 ◽  
Vol 309-311 ◽  
pp. 215-218
Author(s):  
D.H. Yoon ◽  
H.J. Kim ◽  
J.H. Lee ◽  
M.J. Cho ◽  
Hong In Shin

For effective bone regeneration, various surface modifications have been tried. In an effort to improve osteogenic repair potential, we evaluated recombinant peptides containing the RGD domain as a bioactive molecule for tissue-engineered bone regeneration. The synthetic peptides slightly suppressed cellular proliferation in the in vitro culture system but induced favorable osteoblastic differentiation, which was determined by MTT and ALP activity staining, respectively. The synthetic peptide coated CMP granules, which were implanted into the mandibular bone defects showed more favorable bone repair compared to the non-coated CMP implantation. In addition, there were not any sign of inflammatory reaction. These findings suggest that synthesized peptides containing the RGD domain enhance cellular attachment and osteogenic activity in vivo condition and that the peptide-coated CMP granules can serve as a biocompatible bone substitute.


2021 ◽  
Vol 10 (7) ◽  
pp. 411-424
Author(s):  
Da-Wang Zhao ◽  
Bing Ren ◽  
Hong-Wei Wang ◽  
Xiao Zhang ◽  
Ming-Zhi Yu ◽  
...  

Aims The use of 3D-printed titanium implant (DT) can effectively guide bone regeneration. DT triggers a continuous host immune reaction, including macrophage type 1 polarization, that resists osseointegration. Interleukin 4 (IL4) is a specific cytokine modulating osteogenic capability that switches macrophage polarization type 1 to type 2, and this switch favours bone regeneration. Methods IL4 at concentrations of 0, 30, and 100 ng/ml was used at day 3 to create a biomimetic environment for bone marrow mesenchymal stromal cell (BMMSC) osteogenesis and macrophage polarization on the DT. The osteogenic and immune responses of BMMSCs and macrophages were evaluated respectively. Results DT plus 30 ng/ml of IL4 (DT + 30 IL4) from day 3 to day 7 significantly (p < 0.01) enhanced macrophage type 2 polarization and BMMSC osteogenesis compared with the other groups. Local injection of IL4 enhanced new bone formation surrounding the DT. Conclusion DT + 30 IL4 may switch macrophage polarization at the appropriate timepoints to promote bone regeneration. Cite this article: Bone Joint Res 2021;10(7):411–424.


Author(s):  
Young-Kyun Kim ◽  
Hyo-Jung Lee ◽  
Kyung-Wook Kim ◽  
Su-Gwan Kim ◽  
In-Woong Um

2021 ◽  
Vol 2021 ◽  
pp. 1-8
Author(s):  
Qingjie Lin ◽  
Yong Zhang ◽  
Yanguo Liu

Oral repair membrane guided oral bone regeneration, particularly in dental implants, is a guided regeneration technology for bone tissue. The principle is based on the characteristics of rapid migration of epithelial cells and fibroblasts and slower migration of osteoblasts. Materials are placed in the bone defect, creating a relatively closed environment which is conducive to the growth of bone tissue. In this paper, we have evaluated clinical effects of Hai’ao oral repair membrane as a barrier membrane to guide bone regeneration in implants. For this purpose, certain treatment data are collected through data mining and patient’s names with bone defects in the implantation area are selected. According to the randomness principles, these patients are divided into experimental and control groups and preoperative examinations along with basic periodontal treatments are performed on the selected cases. Furthermore, we have analyzed different effects by comparing treatment conditions. Experimental results, as a technical shielding film, verify that Hai’ao oral repair membrane meets requirements of safety and no immune rejection. It plays a role in promoting bone formation around the implant. Mid-to-long-term follow-up is satisfactory with no related complications. At the same time, it has the advantages of simple operation, reduced patient suffering, convenient transportation and storage, and longer validity period. Compared with the control group in terms of safety evaluation of postoperative vital signs, laboratory examinations, and incision healing, Hai’ao oral repair membrane has no significant difference. Postoperative osteogenesis effect is equivalent to that of the control group and meets requirements of superiority. Hai’ao oral repair membrane is used as a shielding membrane material in implant surgery technology to guide bone regeneration.


2020 ◽  
Vol 48 (3) ◽  
pp. 755-764
Author(s):  
Benjamin B. Rothrauff ◽  
Rocky S. Tuan

Bone possesses an intrinsic regenerative capacity, which can be compromised by aging, disease, trauma, and iatrogenesis (e.g. tumor resection, pharmacological). At present, autografts and allografts are the principal biological treatments available to replace large bone segments, but both entail several limitations that reduce wider use and consistent success. The use of decellularized extracellular matrices (ECM), often derived from xenogeneic sources, has been shown to favorably influence the immune response to injury and promote site-appropriate tissue regeneration. Decellularized bone ECM (dbECM), utilized in several forms — whole organ, particles, hydrogels — has shown promise in both in vitro and in vivo animal studies to promote osteogenic differentiation of stem/progenitor cells and enhance bone regeneration. However, dbECM has yet to be investigated in clinical studies, which are needed to determine the relative efficacy of this emerging biomaterial as compared with established treatments. This mini-review highlights the recent exploration of dbECM as a biomaterial for skeletal tissue engineering and considers modifications on its future use to more consistently promote bone regeneration.


2008 ◽  
Vol 68 (S 01) ◽  
Author(s):  
S Mohr ◽  
BC Portmann-Lanz ◽  
A Schoeberlein ◽  
R Sager ◽  
DV Surbek

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