scholarly journals Hypoxic preconditioning of myoblasts implanted in a tissue engineering chamber significantly increases local angiogenesis via upregulation of myoblast vascular endothelial growth factor-A expression and downregulation of miRNA-1, miRNA-206 and angiopoieti

2017 ◽  
Vol 12 (1) ◽  
pp. e408-e421 ◽  
Author(s):  
C.J. Taylor ◽  
J.E. Church ◽  
M.D. Williams ◽  
Y.-W. Gerrand ◽  
E. Keramidaris ◽  
...  
Keyword(s):  
Tissue Engineering ◽  
Vascular Endothelial Growth Factor ◽  
Growth Factor ◽  
Hypoxic Preconditioning ◽  
Vascular Endothelial ◽  
Endothelial Growth Factor

scholarly journals Moscow State University of Medicine and Dentistry named after A.I. Evdokimov

2021 ◽  
Vol 19 (4) ◽  
pp. 343-349
Author(s):  
G. A. Volozhin ◽  
E. A. Bazikian ◽  
R. V. Deev ◽  
I. E. Bozo ◽  
E. A. Presnyakov
Keyword(s):  
Tissue Engineering ◽  
Vascular Endothelial Growth Factor ◽  
Growth Factor ◽  
Bone Tissue ◽  
Plasmid Dna ◽  
Octacalcium Phosphate ◽  
Vascular Endothelial ◽  
Growth Factor Gene ◽  
Tissue Engineering Construct ◽  
Endothelial Growth Factor

Relevance. The effect of a tissue engineering construct based on synthetic octacalcium phosphate activated with plasmid DNA with vascular endothelial growth factor gene on bone morphogenesis at the jaw defect sites of patients was studied. It is shown that the studied osteoplastic material stimulates osteosynthesis pathways already at early stages, and xenogenic hydroxyapatite, triggers osteogenesis processes with considerable delay and does not have time to form a full-fledged bone structure by 6 months.Aim. Evaluate the dynamics of reparative osteogenesis based on the results of histomorphometric diagnostics in patients with defects in the jaw bones of various configurations and lengths with an implanted bone matrix based on synthetic octacalcium phosphate activated with plasmid deoxyribonucleic acid with genes of vascular endothelial growth factor.Materials and methods. Histomorphological examination of bone tissue biopsy of jaws was carried out in 50 patients of both genders, who needed additional volume of bone tissue to install dental implantation. Patients were divided into 2 groups by type of grafted material. 6 months after the surgery, bone biopsies were taken from the bone sites at the stage of implant placement. Histomorphological patterns and histomycrophotograms were studied in bone biopcies.Results. In bone tissue biopsies of patients implanted with a tissue engineering construct based on synthetic octacalcium phosphate activated with plasmid DNA with vascular endothelial growth factor gene, it was revealed that after 6 months there was prevaluation of mature bone tissue (42,71%), with the proportion of differentiated plate bone tissue being < 90%.Conclusions. Histomorphometric analysis showed that in patients implanted with a tissue engineering construct based on synthetic octacalcium phosphate activated with plasmid DNA with vascular endothelial growth factor gene, after 6 months, early rearrangement of bone tissue into a mechanically dense and highly mineralized structure was detected. 

scholarly journals Tissue-engineered patch modified by vascular endothelial growth factor for reconstruction of vascular wall

2020 ◽  
Vol 24 (4) ◽  
pp. 114
Author(s):  
V. V. Sevostianova ◽  
A. V. Mironov ◽  
L. V. Antonova ◽  
E. O. Krivkina ◽  
V. G. Matveeva ◽  
...  
Keyword(s):  
Tissue Engineering ◽  
Vascular Endothelial Growth Factor ◽  
Growth Factor ◽  
Conflict Of Interest ◽  
Basic Research ◽  
Vascular Wall ◽  
Biologically Active ◽  
Vascular Endothelial ◽  
Postoperative Thrombosis ◽  
Endothelial Growth Factor

<p><strong>Background.</strong> Commercially available synthetic and animal-derived vascular patches used in patch angioplasty during carotid endarterectomy have several disadvantages, such as postoperative thrombosis or occlusion and restenosis. This problem may be resolved by the development of biologically active materials that are biodegradable and can stimulate tissue regeneration.<br />Aim. To evaluate the properties and efficacy of a biodegradable patch based on poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) and poly(ε-caprolactone) (PCL) into which vascular endothelial growth factor (VEGF) is incorporated, in comparison with unmodified PHBV/PCL and commercial vascular patches.</p><p><strong>Methods.</strong> Porous patches were fabricated by emulsion electrospinning from a mixture of PHBV and PCL, into which VEGF was incorporated. The morphological and mechanical properties of these patches were tested, and they were implanted into the wall of rat abdominal aortas for 1, 3, 6 and 12 months. Histological and immunofluorescence examinations were performed to evaluate endothelisation, cellular composition and calcification.</p><p><strong>Results.</strong> PHBV / PCL patches with VEGF had a highly porous structure and demonstrated tensile strength similar to that of the aorta in rats and the internal thoracic artery in humans. After 3 months of implantation, an endothelial monolayer was formed on the inner surface of these patches. The patches were populated by cells that secreted the extracellular matrix faster than did cells of patches from the xenopericardium. Remodelling with PHBV / PCL patches was not accompanied by chronic inflammation; in contrast, inflammation was observed with long-term implantation of unmodified PHBV / PCL samples.</p><p><strong>Conclusion.</strong> VEGF incorporated into biodegradable PHBV / PCL patches stimulated their endothelisation, increased their biocompatibility and promoted remodelling and formation of the components of the blood vessel. PHBV / PCL / VEGF patches thus have a high potential for use in tissue engineering of the vascular wall.</p><p>Received 2 June 2020. Revised 27 June 2020. Accepted 16 July 2020.</p><p><strong>Funding:</strong> This study was supported by the Complex Program of Basic Research under the Siberian Branch of the Russian Academy of Sciences within the Basic Research Topic of Research Institute for Complex Issues of Cardiovascular Diseases № 0546-2019-0002 “Pathogenetic basis for the development of cardiovascular implants from biocompatible materials using patient-oriented approach, mathematical modeling, tissue engineering, and genomic predictors”.</p><p><strong>Conflict of interest:</strong> Authors declare no conflict of interest.</p><p><strong>Author contributions</strong><br />Conception and study design: V.V. Sevostianova, A.V. Mironov, L.V. Antonova, R.S. Tarasov, L.S. Barbarash<br />Data collection and analysis: V.V. Sevostianova, A.V. Mironov, L.V. Antonova, E.O. Krivkina, V.G. Matveeva, E.A. Velikanova, T.V. Glushkova<br />Statistical analysis: V.V. Sevostianova, T.V. Glushkova<br />Drafting the article: V.V. Sevostianova, A.V. Mironov <br />Critical revision of the article: L.V. Antonova, R.S. Tarasov, L.S. Barbarash<br />Final approval of the version to be published: V.V. Sevostianova, A.V. Mironov, L.V. Antonova, E.O. Krivkina, V.G. Matveeva, E.A. Velikanova, R.S. Tarasov, T.V. Glushkova, L.S. Barbarash</p>

Nickel doped nanohydroxyapatite: vascular endothelial growth factor inducing biomaterial for bone tissue engineering

RSC Advances ◽  
2015 ◽  
Vol 5 (89) ◽  
pp. 72515-72528 ◽  
Author(s):  
B. Anu Priya ◽  
K. Senthilguru ◽  
T. Agarwal ◽  
S. N. Gautham Hari Narayana ◽  
S. Giri ◽  
...  
Keyword(s):  
Tissue Engineering ◽  
Vascular Endothelial Growth Factor ◽  
Growth Factor ◽  
Bone Tissue Engineering ◽  
Bone Tissue ◽  
Vascular Endothelial ◽  
Effective Option ◽  
Vegf Pathway ◽  
Endothelial Growth Factor

Biomaterial induced activation of vascular endothelial growth factor (VEGF) pathway for angiogenesis is now gaining recognition as an effective option for tissue engineering.

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