Search published articles


Showing 2 results for Baghaban Eslaminejad

A. Adibfar, Gh. Amoabediny ‎, M.r. Baghaban Eslaminejad ‎, Fatemeh. Bagheri , B. Zandieh Doulabi, J. Mohamadi ‎,
Volume 21, Issue 2 (Summer 2018)
Abstract

Aims: Growth factor (GFs) delivery with the certain concentration and release kinetic is one of the main challenges in tissue engineering. The aim of this study was the preparation and characterization of smart poly (N-isopropylacrylamide) nanoparticles containing vascular endothelial growth factor for induction of angiogenesis in human bone marrow-derived mesenchymal stem cells.
Materials and Methods: In this exprimental study, two different formulations of temperature-sensitive Poly (N-isopropylacrylamide) (PNIPAM) nanoparticles (NPs) were synthesized by free radical polymerization technique. Nanoprecipitation and diffusion methods were used to load the vascular endothelial growth factor (VEGF) in PNIPAM NPs. The effects of released VEGF on the differentiation of human bone marrow stem cells (hBMSCs) into endothelial cells in angiogenic, osteogenic, and 50% angiogenic-osteogenic culture medium were investigated, using flow cytometry and light microscope. Statistical analysis was performed, using the GraphPad Prism 6 software.
Findings: The nanoprecipitation process caused polymer degradation due to using the organic N, N-Dimethylacetamide solvent. The cumulative VEGF released after 72hours for 70%. A total of 10ng/ml VEGF released from PNIPAM nanoparticles, in 2D culture with cell density of 3×104 hBMSCs, after 7 days, leading to the endothelial differentiation, capillary-like tube formation, and expression of 20% vWF as angiogenic marker.
Conclusion: The PNIPAM NPs have the potential to load and release the angiogenic GFs for induction of angiogenesis in hBMSCs and in osteogenic medium.

N. Akbari Moghadam , F. Bagheri, M. Baghaban Eslaminejad ,
Volume 23, Issue 3 (Summer 2020)
Abstract

Osteoarthritis is the most common articular disease that has significantly affected the patients’ quality of life. As cartilage doesn’t have any blood vessels and neurons, its treatment is a difficult task to do. Traditional therapeutic approaches, including the use of non-steroidal anti-inflammatory drugs (NSAIDs) and surgical interventions, can only control the disease, and the joint will lose its functionality after a short period. Consequently, modern methods such as cell therapy and tissue engineering along with using various biomaterials are being attempted to repair degenerated cartilage tissue. Using interfering RNAs is another approach that targets specific destructive or malfunctioned RNA sequences and suppresses the responsible factors for cartilage tissue destruction. Hence, the degenerated tissue can gradually retain the balance between anabolic and catabolic activities. Identification of the affecting genes in degeneration or malfunctioning and their suppression has provided promising results for the treatment of diseases. In the current study, after introducing the tissue, the process of cartilage degeneration and osteoarthritis development, the researches that have investigated the effect of interfering RNAs on rehabilitating cartilage tissue via inhibition of cartilage matrix destruction are reviewed.


Page 1 from 1