Long-Term Safety of Transplanting Human Bone Marrow Stromal Cells into the Extravascular Spaces of the Choroid of Rabbits

Incurable neuroretinal degeneration diseases cause severe vision loss and blindness in millions of patients worldwide. In previous studies, we demonstrated that transplanting human bone marrow stromal cells (hBMSCs) in the extravascular spaces of the choroid (EVSC) of the Royal College of Surgeon ra...

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Main Authors: Adi Tzameret, Sapir E. Kalish, Ifat Sher, Lea Twito, Amilia Meir, Itay Levy, Shlomo Margel, Iris Moroz, Mordechai Rosner, Avraham J. Treves, Arnon Nagler, Michael Belkin, Ygal Rotenstreich
Format: Article
Language:English
Published: Wiley 2017-01-01
Series:Stem Cells International
Online Access:http://dx.doi.org/10.1155/2017/4061975
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author Adi Tzameret
Sapir E. Kalish
Ifat Sher
Lea Twito
Amilia Meir
Itay Levy
Shlomo Margel
Iris Moroz
Mordechai Rosner
Avraham J. Treves
Arnon Nagler
Michael Belkin
Ygal Rotenstreich
author_facet Adi Tzameret
Sapir E. Kalish
Ifat Sher
Lea Twito
Amilia Meir
Itay Levy
Shlomo Margel
Iris Moroz
Mordechai Rosner
Avraham J. Treves
Arnon Nagler
Michael Belkin
Ygal Rotenstreich
author_sort Adi Tzameret
collection DOAJ
description Incurable neuroretinal degeneration diseases cause severe vision loss and blindness in millions of patients worldwide. In previous studies, we demonstrated that transplanting human bone marrow stromal cells (hBMSCs) in the extravascular spaces of the choroid (EVSC) of the Royal College of Surgeon rats ameliorated retinal degeneration for up to 5 months. Assessing the safety of hBMSC treatment and graft survival in a large animal is a crucial step before initiating clinical trials. Here, we transplanted hBMSCs into the EVSC compartment of New Zealand White rabbits. No immunosuppressants were used. Transplanted cells were spread across the EVSC covering over 80 percent of the subretinal surface. No cells were detected in the sclera. Cells were retained in the EVSC compartment 10 weeks following transplantation. Spectral domain optical coherence tomography (SD-OCT) and histopathology analysis demonstrated no choroidal hemorrhages, retinal detachment, inflammation, or any untoward pathological reactions in any of transplanted eyes or in the control noninjected contralateral eyes. No reduction in retinal function was recorded by electroretinogram up to 10 weeks following transplantation. This study demonstrates the feasibility and safety of transplanting hBMSCs in the EVSC compartment in a large eye model of rabbits.
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spelling doaj-art-c7764a28034a47b98e6070922ddee56c2025-02-03T01:24:29ZengWileyStem Cells International1687-966X1687-96782017-01-01201710.1155/2017/40619754061975Long-Term Safety of Transplanting Human Bone Marrow Stromal Cells into the Extravascular Spaces of the Choroid of RabbitsAdi Tzameret0Sapir E. Kalish1Ifat Sher2Lea Twito3Amilia Meir4Itay Levy5Shlomo Margel6Iris Moroz7Mordechai Rosner8Avraham J. Treves9Arnon Nagler10Michael Belkin11Ygal Rotenstreich12Maurice and Gabriela Goldschleger Eye Institute, Sheba Medical Center, Tel Hashomer, IsraelMaurice and Gabriela Goldschleger Eye Institute, Sheba Medical Center, Tel Hashomer, IsraelMaurice and Gabriela Goldschleger Eye Institute, Sheba Medical Center, Tel Hashomer, IsraelMaurice and Gabriela Goldschleger Eye Institute, Sheba Medical Center, Tel Hashomer, IsraelCenter for Stem Cells and Regenerative Medicine, Sheba Medical Center, Tel Hashomer, IsraelDepartment of Chemistry, Bar-Ilan Institute of Nanotechnology and Advanced Materials, Ramat Gan 52900, IsraelDepartment of Chemistry, Bar-Ilan Institute of Nanotechnology and Advanced Materials, Ramat Gan 52900, IsraelMaurice and Gabriela Goldschleger Eye Institute, Sheba Medical Center, Tel Hashomer, IsraelMaurice and Gabriela Goldschleger Eye Institute, Sheba Medical Center, Tel Hashomer, IsraelCenter for Stem Cells and Regenerative Medicine, Sheba Medical Center, Tel Hashomer, IsraelHematology Division, Sheba Medical Center, Tel Hashomer, IsraelMaurice and Gabriela Goldschleger Eye Institute, Sheba Medical Center, Tel Hashomer, IsraelMaurice and Gabriela Goldschleger Eye Institute, Sheba Medical Center, Tel Hashomer, IsraelIncurable neuroretinal degeneration diseases cause severe vision loss and blindness in millions of patients worldwide. In previous studies, we demonstrated that transplanting human bone marrow stromal cells (hBMSCs) in the extravascular spaces of the choroid (EVSC) of the Royal College of Surgeon rats ameliorated retinal degeneration for up to 5 months. Assessing the safety of hBMSC treatment and graft survival in a large animal is a crucial step before initiating clinical trials. Here, we transplanted hBMSCs into the EVSC compartment of New Zealand White rabbits. No immunosuppressants were used. Transplanted cells were spread across the EVSC covering over 80 percent of the subretinal surface. No cells were detected in the sclera. Cells were retained in the EVSC compartment 10 weeks following transplantation. Spectral domain optical coherence tomography (SD-OCT) and histopathology analysis demonstrated no choroidal hemorrhages, retinal detachment, inflammation, or any untoward pathological reactions in any of transplanted eyes or in the control noninjected contralateral eyes. No reduction in retinal function was recorded by electroretinogram up to 10 weeks following transplantation. This study demonstrates the feasibility and safety of transplanting hBMSCs in the EVSC compartment in a large eye model of rabbits.http://dx.doi.org/10.1155/2017/4061975
spellingShingle Adi Tzameret
Sapir E. Kalish
Ifat Sher
Lea Twito
Amilia Meir
Itay Levy
Shlomo Margel
Iris Moroz
Mordechai Rosner
Avraham J. Treves
Arnon Nagler
Michael Belkin
Ygal Rotenstreich
Long-Term Safety of Transplanting Human Bone Marrow Stromal Cells into the Extravascular Spaces of the Choroid of Rabbits
Stem Cells International
title Long-Term Safety of Transplanting Human Bone Marrow Stromal Cells into the Extravascular Spaces of the Choroid of Rabbits
title_full Long-Term Safety of Transplanting Human Bone Marrow Stromal Cells into the Extravascular Spaces of the Choroid of Rabbits
title_fullStr Long-Term Safety of Transplanting Human Bone Marrow Stromal Cells into the Extravascular Spaces of the Choroid of Rabbits
title_full_unstemmed Long-Term Safety of Transplanting Human Bone Marrow Stromal Cells into the Extravascular Spaces of the Choroid of Rabbits
title_short Long-Term Safety of Transplanting Human Bone Marrow Stromal Cells into the Extravascular Spaces of the Choroid of Rabbits
title_sort long term safety of transplanting human bone marrow stromal cells into the extravascular spaces of the choroid of rabbits
url http://dx.doi.org/10.1155/2017/4061975
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