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مقاله Abstract


Title: Construction and Optimization of the Fibrin Scaffold Fortified by Platelet lysate and investigating its effect on Cultivated Human Retinal Pigment Epithelial Cells
Author(s): Rasul Dabbaghi3 , Masoud Soleimani3, Sahar Balagholi1 , Mozhgan Rezaei Kanavi1*, Shaban Alizadeh2 , Bahareh KHeiri1, Samira Karami2, Hamid Ahmadiyeh.
Presentation Type: Poster
Subject: Physiology/Pharmacology
Others:
Presenting Author:
Name: Rasoul Dabbaghi
Affiliation :(optional) 1Ocular Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran 2Department of Hematology, School of Allied Medicine, Tehran University of Medical Sciences, Teh
E mail: dabbaghi1990@gmail.com
Phone:
Mobile: 09397164484
Purpose:

To examine morphologic, genotypic and phenotypic alterations of cultured adult human retinal pigment epithelial (ahRPE) cells when encapsulated with different concentrations of fibrin Scaffold Fortified by Platelet lysate.

Methods:

ahRPE cells were encapsulated with fibrin Glue fortified by different concentrations of platelets that were obtained from platelet-rich plasma. The mixtures includedMIX1= 150000plt/ul, MIX2= 240000plt/ul, MIX3= 300000 plt/ul, MIX4=390000 plt/ul, MIX5= 480000 plt/ul, and MIX6= 600000 plt/ul. The encapsulated cells were then evaluated for cytomorphological changes, gene and protein expression profiles.

Results:

Cultured ahRPE cells demonstrated dendritiform and epithelioid morphology in all mixtures. The results of Viability assay on the third day indicate a growth rate less than control in all mixtures, and this decrease in MIX1 than the control is significant. (P = 0.0001). However, with time and on the seventh day, there is no significant difference between the mixtures and the control. At the transcriptional level, gene expressions of PAX6, and RPE65 in MIX1 and MIX2-encapsulated cells were significantly higher than other treated groups and the expression of αSMA gene was decreased in all mixtures as compared with the controls. Moreover, all mixtures encapsulated cells expressed cytokeratin 8.18, RPE65protein while just MIX1 and MIX2 expressed PAX6 proteins on immunocytochemistry.

Conclusion:

Based on this study, fibrin glue fortified by platelet rich plasma especially MIX1 and MIX2 provide an appropriate scaffold for the preservation of identity of the cultivated human RPE cells.

Attachment: 63dabbaghi poster-MRK.pptx





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