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    VEGF Isolation from Platelet Lysate

    , M.Sc. Thesis Sharif University of Technology Sanaei, Reza (Author) ; Abdekhodaie, Mohammad Jafar (Supervisor)
    Abstract
    Platelet-rich plasma as a juvenile to the narrow repertoire of orthopedic medicine, has risen hope to attain a generic autologous regenerative formula for different conditions. Vast plethora of GFs, cytokines and chemokines has endowed PRP with excellent regenerative properties, however not all of them would favor different conditions. Vascular endothelial growth factor has been demonstrated to be involved in the progress of Osteoarthritis by amplifying the catabolic processes which deteriorate the extracellular matrix of cartilage. Though cumbersome, the result of eliminating VEGF from platelet lysate would be promising. VEGF isolation from platelet lysate requires selectivity. By employing... 

    Investigation of Molecular Interactions of VEGFR and its Inhibitors by Molecular Dynamics Simulation

    , M.Sc. Thesis Sharif University of Technology Didandeh, Mohsen (Author) ; Bastani, Daruoosh (Supervisor) ; Mashayekhan, Shohreh (Co-Supervisor) ; Karami, Layla (Co-Supervisor)
    Abstract
    One of the chief kinds of receptors in cancer angiogenesis is the tyrosine kinase VEGFR-2. This target receptor is presented in both forms; active and inactive. adenosine triphosphate (ATP) residue is the location of deformational change from inactive to active form. Small molecule inhibitors have been designed for various forms of this receptor. In current study, the interaction of small molecular inhibitors including; Regorafenib, Cabozantinib and Thiosanib with dual VEGFR-2 receptor forms was investigated by molecular dynamics with Gromacs software. Cabozantinib and Regorafenib inhibitors had a lower binding energy in interaction with the inactive state however, Thiosanib inhibitors in... 

    Induced cell migration based on a bioactive hydrogel sheet combined with a perfused microfluidic system

    , Article Biomedical Materials (Bristol) ; Volume 15, Issue 4 , May , 2020 Jafarkhani, M ; Jafarkhani, M ; Salehi, Z ; Mashayekhan, S ; Kowsari Esfahan, R ; Dolatshahi Pirouz, A ; Bonakdar, S ; Shokrgozar, M. A ; Sharif University of Technology
    Institute of Physics Publishing  2020
    Abstract
    Endothelial cell migration is a crucial step in the process of new blood vessel formation - a necessary process to maintain cell viability inside thick tissue constructs. Here, we report a new method for maintaining cell viability and inducing cell migration using a perfused microfluidic platform based on collagen gel and a gradient hydrogel sheet. Due to the helpful role of the extracellular matrix components in cell viability, we developed a hydrogel sheet from decellularized tissue (DT) of the bovine heart and chitosan (CS). The results showed that hydrogel sheets with an optimum weight ratio of CS/DT = 2 possess a porosity of around 75%, a mechanical strength of 23 kPa, and display cell...