AAS ›› 2016, Vol. 47 ›› Issue (4): 557-562.doi: 10.16098/j.issn.0529-1356.2016.04.021

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Preparation for acellular human amniotic membrane matrix and assessment the immunogenic property

LU Xin1 YUAN Jie2 GUO Xin-yue2 LI Wei-hong1 SHANG Hong-wei1 ZHANG Li-xin1 HUANG Xiao-wu3 ZHANG Hai-yan 2*   

  1. 1. Experimental Center for Basic Medical Teaching, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China; 2. Department of Cell Biology, School of Basic Medical Science, Capital Medical University, Beijing 100069, China; 3. Hysteroscopic Diagnosis and Treatment Center, Fuxing Hospital, Capital Medical University, Beijing 100038, China

  • Received:2015-12-15 Revised:2016-01-29 Online:2016-08-06 Published:2016-08-06
  • Contact: ZHANG Hai-yan E-mail:culture@ccmu.edu.cn

Abstract:

Objective To prepare of the acellular human amniotic membrane matrix (AHAM) and to assess the immunogenic property of AHAM as a scaffold for cell transplantation. Methods To prepare the AHAM, the HAM was peeled from the placenta, cut into pieces and incubated in trypsin with EDTA for decellularization. For generating cryopreserved AHAM, the fresh AHAM pieces were placed in dishes with a 1∶1 mixture of glycerol and chondroitin sulfate in MEM-NEAA and stored at -80℃. Before using, the cryopreserved AHAMs were rehydrated with sterile PBS. The expression of human leucocyte antigen in HAM and AHAM was determined by immunofluorescence. The ratio of CD4+ and CD8+ T cells in mouse spleen after AHAM transplantation for four weeks was assessed by immunofluorescence and flow cytometry. Results Immunofluorescence analysis confirmed that the fresh and cryopreserved AHAM were negative for human leucocyte antigen antibody. Immunofluorescence and flow cytometry analysis confirmed that the ratio of CD4+ and CD8+ T cells in mouse spleen after AHAM transplantation was not changed. Conclusion The immunogenic property of AHAM is relatively low and does not cause the T cells mediated immunological rejection after transplantation in the mouse model. These results support the potential of AHAM as a cell delivery platform to treat and manage disease. 

Key words: Acellular human amniotic membrane matrix, Immunogenicity, Transplantation, T lymphocyte, Mouse