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Bu X, Wang J, Yin Z, Pan W, Liu L, Jin H, Liu Q, Zheng L, Sun H, Gao Y, Ping B. Human Amniotic Mesenchymal Stem Cells Alleviate aGVHD after allo-HSCT by Regulating Interactions between Gut Microbiota and Intestinal Immunity. Stem Cell Rev Rep 2023:10.1007/s12015-023-10522-4. [PMID: 36870009 PMCID: PMC10366239 DOI: 10.1007/s12015-023-10522-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/21/2023] [Indexed: 03/05/2023]
Abstract
Acute graft-versus-host disease (aGVHD) after allogeneic hematopoietic stem cell transplantation poses one of the most vexing challenges. Gut microbiota dysbiosis can proceed aGVHD and mesenchymal stem cells (MSCs) have promising therapeutic potential for aGVHD. However, whether hAMSCs affect the gut microbiota during aGVHD mitigation remains unknown. Accordingly, we sought to define the effects and underlying mechanisms of human amniotic membrane-derived MSCs (hAMSCs) regulating the gut microbiota and intestinal immunity in aGVHD. By establishing humanized aGVHD mouse models and hAMSCs treatment, we found that hAMSCs significantly ameliorated aGVHD symptoms, reversed the immune imbalance of T cell subsets and cytokines, and restored intestinal barrier. Moreover, the diversity and composition of gut microbiota were improved upon treatment with hAMSCs. Spearman's correlation analysis showed that there was a correlation between the gut microbiota and tight junction proteins, immune cells as well as cytokines. Our research suggested that hAMSCs alleviated aGVHD by promoting gut microbiota normalization and regulating the interactions between the gut microbiota and intestinal barrier, immunity.
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Affiliation(s)
- Xiaoyin Bu
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
- Department of Hematology, Huiqiao Medical Center, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Junhui Wang
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Zhao Yin
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Weifeng Pan
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Liping Liu
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Hua Jin
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Qifa Liu
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Lei Zheng
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Haitao Sun
- Department of Laboratory Medicine Clinical Biobank Center, Microbiome Medicine Center, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, China.
| | - Ya Gao
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China.
| | - Baohong Ping
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China.
- Department of Hematology, Huiqiao Medical Center, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China.
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Kuramoto Y, Fujita M, Takagi T, Takeda Y, Doe N, Yamahara K, Yoshimura S. Early-phase administration of human amnion-derived stem cells ameliorates neurobehavioral deficits of intracerebral hemorrhage by suppressing local inflammation and apoptosis. J Neuroinflammation 2022; 19:48. [PMID: 35151317 PMCID: PMC8840774 DOI: 10.1186/s12974-022-02411-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Accepted: 02/05/2022] [Indexed: 12/27/2022] Open
Abstract
Background Intracerebral hemorrhage (ICH) is a significant cause of death and disabilities. Recently, cell therapies using mesenchymal stem cells have been shown to improve ICH-induced neurobehavioral deficits. Based on these findings, we designed this study to evaluate the therapeutic efficacy and underlying mechanisms by which human amnion-derived stem cells (hAMSCs) would ameliorate neurobehavioral deficits of ICH-bearing hosts. Methods hAMSCs were induced from amnia obtained by cesarean section and administered intravenously to ICH-bearing mice during the acute phase. The mice were then subject to multitask neurobehavioral tests at the subacute phase. We attempted to optimize the dosage and timing of the hAMSC administrations. In parallel with the hAMSCs, a tenfold higher dose of human adipose-derived stem cells (ADSCs) were used as an experimental control. Specimens were obtained from the ICH lesions to conduct immunostaining, flow cytometry, and Western blotting to elucidate the underlying mechanisms of the hAMSC treatment. Results The intravenous administration of hAMSCs to the ICH-bearing mice effectively improved their neurobehavioral deficits, particularly when the treatment was initiated at Day 1 after the ICH induction. Of note, the hAMSCs promoted clinical efficacy equivalent to or better than that of hADSCs at 1/10 the cell number. The systemically administered hAMSCs were found in the ICH lesions along with the local accumulation of macrophages/microglia. In detail, the hAMSC treatment decreased the number of CD11b+CD45+ and Ly6G+ cells in the ICH lesions, while splenocytes were not affected. Moreover, the hAMSC treatment decreased the number of apoptotic cells in the ICH lesions. These results were associated with suppression of the protein expression levels of macrophage-related factors iNOS and TNFα. Conclusions Intravenous hAMSC administration during the acute phase would improve ICH-induced neurobehavioral disorders. The underlying mechanism was suggested to be the suppression of subacute inflammation and apoptosis by suppressing macrophage/microglia cell numbers and macrophage functions (such as TNFα and iNOS). From a clinical point of view, hAMSC-based treatment may be a novel strategy for the treatment of ICH. Supplementary Information The online version contains supplementary material available at 10.1186/s12974-022-02411-3.
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Gao Y, Li W, Bu X, Xu Y, Cai S, Zhong J, Du M, Sun H, Huang L, He Y, Hu X, Liu Q, Jin H, Wang Q, Ping B. Human Amniotic Mesenchymal Stem Cells Inhibit aGVHD by Regulating Balance of Treg and T Effector Cells. J Inflamm Res 2021; 14:3985-3999. [PMID: 34429630 PMCID: PMC8378934 DOI: 10.2147/jir.s323054] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 07/27/2021] [Indexed: 12/14/2022] Open
Abstract
Background Acute graft versus host disease (aGVHD) remains a leading cause of transplant-related mortality following allogeneic haematopoietic cell transplantation (allo-HCT). Human amniotic mesenchymal stem cells (hAMSCs) are a novel mesenchymal stem cells (MSCs), which have stronger proliferation and immunomodulatory ability compared with bone marrow mesenchymal stem cells (BM-MSCs). Besides, as the amniotic membrane is often treated as medical waste after delivery, hAMSCs can be obtained conveniently and noninvasively. The aim of this study was to explore the therapeutic efficacy and underlying mechanisms of hAMSCs transplantation for the humanized aGVHD mouse model. Methods We established a humanized aGVHD mouse model by transplanting human peripheral blood mononuclear cells (PBMCs) into NOD-PrkdcscidIL2rγnull (NPG) mice, human amniotic membrane collected from discarded placenta of healthy pregnant women after delivery and hAMSCs were extracted from amniotic membrane and expanded in vitro. Mice were divided into untreated group (Control), aGVHD group (aGVHD), and hAMSCs treatment group (aGVHD+hAMSCs), the hAMSCs labeled with GFP were administered to aGVHD mice to explore the homing ability of hAMSCs. T effector and regulatory T cells (Tregs) levels and cytokines of each group in target organs were detected by flow cytometry and cytometric bead array (CBA), respectively. Results We successfully established a humanized aGVHD mouse model using NPG mice. The hAMSCs have the ability to inhibit aGVHD in this mouse model through reduced villous blunting and lymphocyte infiltration of the gut while reducing inflammatory edema, tissue destruction and lymphocyte infiltration into the parenchyma of the liver and lung. hAMSCs suppressed CD3+CD4+ T and CD3+CD8+ T cell expression and increased the proportion of Tregs, and besides, hAMSCs can reduce the levels of IL-17A, INF-γ, and TNF in aGVHD target organs. Conclusion The NPG murine environment was capable of activating human T cells to produce aGVHD pathology to mimic aGVHD as in humans. The hAMSCs controlled aGVHD by decreasing inflammatory cytokine secretion within target organs by modulating the balance of Tregs and T effector cells in humanized mice.
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Affiliation(s)
- Ya Gao
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, People's Republic of China
| | - Weiru Li
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, People's Republic of China
| | - Xiaoyin Bu
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, People's Republic of China
| | - Ying Xu
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, People's Republic of China
| | - Shengchun Cai
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, People's Republic of China
| | - Jinman Zhong
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, People's Republic of China
| | - Meixue Du
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, People's Republic of China
| | - Haitao Sun
- Department of Laboratory Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, People's Republic of China
| | - Liping Huang
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, People's Republic of China
| | - Yongjian He
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, People's Republic of China
| | - Xiumei Hu
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, People's Republic of China
| | - Qifa Liu
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, People's Republic of China
| | - Hua Jin
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, People's Republic of China
| | - Qian Wang
- Department of Laboratory Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, People's Republic of China.,Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, People's Republic of China
| | - Baohong Ping
- Department of Hematology, Huiqiao Medical Center, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, People's Republic of China
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Yoshida Y, Takagi T, Kuramoto Y, Tatebayashi K, Shirakawa M, Yamahara K, Doe N, Yoshimura S. Intravenous Administration of Human Amniotic Mesenchymal Stem Cells in the Subacute Phase of Cerebral Infarction in a Mouse Model Ameliorates Neurological Disturbance by Suppressing Blood Brain Barrier Disruption and Apoptosis via Immunomodulation. Cell Transplant 2021; 30:9636897211024183. [PMID: 34144647 PMCID: PMC8216398 DOI: 10.1177/09636897211024183] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Neuro-inflammation plays a key role in the pathophysiology of brain infarction. Cell therapy offers a novel therapeutic option due to its effect on immunomodulatory effects. Amniotic stem cells, in particular, show promise owing to their low immunogenicity, tumorigenicity, and easy availability from amniotic membranes discarded following birth. We have successfully isolated and expanded human amniotic mesenchymal stem cells (hAMSCs). Herein, we evaluated the therapeutic effect of hAMSCs on neurological deficits after brain infarction as well as their immunomodulatory effects in a mouse model in order to understand their mechanisms of action. One day after permanent occlusion of the middle cerebral artery (MCAO), hAMSCs were intravenously administered. RT-qPCR for TNFα, iNOS, MMP2, and MMP9, immunofluorescence staining for iNOS and CD11b/c, and a TUNEL assay were performed 8 days following MCAO. An Evans Blue assay and behavioral tests were performed 2 days and several months following MCAO, respectively. The results suggest that the neurological deficits caused by cerebral infarction are improved in dose-dependent manner by the administration of hAMSCs. The mechanism appears to be through a reduction in disruption of the blood brain barrier and apoptosis in the peri-infarct region through the suppression of pro-inflammatory cytokines and the M2-to-M1 phenotype shift.
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Affiliation(s)
- Yasunori Yoshida
- Department of Neurosurgery, 12818Hyogo College of Medicine, 1-1 Mukogawa, Nishinomiya, Hyogo, Japan
| | - Toshinori Takagi
- Department of Neurosurgery, 12818Hyogo College of Medicine, 1-1 Mukogawa, Nishinomiya, Hyogo, Japan
| | - Yoji Kuramoto
- Department of Neurosurgery, 12818Hyogo College of Medicine, 1-1 Mukogawa, Nishinomiya, Hyogo, Japan
| | - Kotaro Tatebayashi
- Department of Neurosurgery, 12818Hyogo College of Medicine, 1-1 Mukogawa, Nishinomiya, Hyogo, Japan
| | - Manabu Shirakawa
- Department of Neurosurgery, 12818Hyogo College of Medicine, 1-1 Mukogawa, Nishinomiya, Hyogo, Japan
| | - Kenichi Yamahara
- Laboratory of Medical Innovation, Institute for Advanced Medical Sciences, Hyogo College of Medicine, Nishinomiya, Hyogo, Japan
| | - Nobutaka Doe
- Laboratory of Neurogenesis and CNS Repair, 12818, Nishinomiya, Hyogo, Japan.,Laboratory of Psychology, General Education Center, Hyogo University of Health Sciences, Kobe, Hyogo, Japan
| | - Shinichi Yoshimura
- Department of Neurosurgery, 12818Hyogo College of Medicine, 1-1 Mukogawa, Nishinomiya, Hyogo, Japan
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Zhang L, Xiong N, Liu Y, Gan L. Biomimetic cell-adhesive ligand-functionalized peptide composite hydrogels maintain stemness of human amniotic mesenchymal stem cells. Regen Biomater 2021; 8:rbaa057. [PMID: 33738111 PMCID: PMC7953499 DOI: 10.1093/rb/rbaa057] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 11/02/2020] [Accepted: 12/03/2020] [Indexed: 12/13/2022] Open
Abstract
In vivo, stem cells reside in a three-dimensional (3D) extracellular microenvironment in which complicated biophysical and biochemical factors regulate their behaviors. Biomimicking of the stem cell-matrix interactions is an ideal approach for controlling the stem cell fate. This study investigates the effects of the incorporation of cell-adhesive ligands in 3D self-assembling peptide hydrogels to modulate stem cell survival, proliferation, maintenance of stemness, and osteogenic differentiation. The results show that the composite hydrogels were non-cytotoxic and effective for maintaining human amniotic mesenchymal stem cell (hAMSC) survival, proliferation and phenotypic characterization. The expression levels of pluripotent markers were also upregulated in the composite hydrogels. Under inductive media conditions, mineral deposition and mRNA expression levels of osteogenic genes of hAMSCs were enhanced. The increasing expression of integrin α- and β-subunits for hAMSCs indicates that the ligand-integrin interactions may modulate the cell fate for hAMSCs in composite hydrogels.
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Affiliation(s)
- Ling Zhang
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou Province, China
| | - Na Xiong
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou Province, China
| | - Yanfei Liu
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou Province, China
| | - Lili Gan
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou Province, China
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Lou S, Duan Y, Nie H, Cui X, Du J, Yao Y. Mesenchymal stem cells: Biological characteristics and application in disease therapy. Biochimie 2021; 185:9-21. [PMID: 33711361 DOI: 10.1016/j.biochi.2021.03.003] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 03/05/2021] [Accepted: 03/05/2021] [Indexed: 12/12/2022]
Abstract
Mesenchymal stem cells (MSCs) are multipotent stem cells. In addition to the capacity for self-renewal and multipotential differentiation, MSCs also have the following characteristics. MSCs can exert immunomodulatory functions through interaction with innate or adaptive immune cells, MSCs with poor immunogenicity can be used for allogeneic transplantation, and MSCs can "home" to inflammation and tumour sites. Based on these biological properties, MSCs demonstrate broad clinical application prospects in the treatment of tissue injury, autoimmune diseases, transplantation, cancer and other inflammation-related diseases. In this review we describe the biological characteristics of MSCs and discuss the research advances of MSCs in regenerative medicine, immunomodulation, oncology, and COVID-19, to fully understand the range of diseases in which MSC therapy may be beneficial.
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Affiliation(s)
- Songyue Lou
- School of Pharmaceutical Science, Zhengzhou University, Zhengzhou, Henan, 450001, China.
| | - Yongtao Duan
- Henan Provincial Key Laboratory of Children's Genetics and Metabolic Diseases, Children's Hospital Affiliated to Zhengzhou University, Zhengzhou University, Henan, 450018, China.
| | - Huizong Nie
- School of Life Science, Zhengzhou University, Zhengzhou, Henan, 450001, China.
| | - Xujie Cui
- School of Life Science, Zhengzhou University, Zhengzhou, Henan, 450001, China.
| | - Jialing Du
- School of Pharmaceutical Science, Zhengzhou University, Zhengzhou, Henan, 450001, China.
| | - Yongfang Yao
- Henan Provincial Key Laboratory of Children's Genetics and Metabolic Diseases, Children's Hospital Affiliated to Zhengzhou University, Zhengzhou University, Henan, 450018, China; School of Pharmaceutical Science, Zhengzhou University, Zhengzhou, Henan, 450001, China.
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Xiong J, Chen L, Zhang L, Bao L, Shi Y. Mesenchymal Stromal Cell-Based Therapy: A Promising Approach for Severe COVID-19. Cell Transplant 2021; 30:963689721995455. [PMID: 33650894 PMCID: PMC7930651 DOI: 10.1177/0963689721995455] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 12/22/2020] [Accepted: 01/28/2021] [Indexed: 01/08/2023] Open
Abstract
During the outbreak of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), many critically ill patients died of severe pneumonia, acute respiratory distress syndrome (ARDS), or multiple organ dysfunction syndrome. To date, no specific treatments have been proven to be effective for coronavirus disease 2019 (COVID-19). In the animal models and clinical applications, mesenchymal stromal/stem cells (MSCs) have been shown safety and efficacy for the treatment of respiratory virus infection through their abilities of differentiation and immunomodulation. Besides, possessing several advantages of MSC-derived extracellular vesicles (EVs) over MSCs, EV-based therapy also holds potential therapeutic effects in respiratory virus infection. In this review, we summarized the basic characteristics and mechanisms of COVID-19 and MSCs, outlined some preclinical and clinical studies of MSCs or MSC-EVs for respiratory virus infection such as influenza virus and SARS-CoV-2, shed light on the common problems that we should overcome to translate MSC therapy into clinical application, and discussed some safe issues related to the use of MSCs.
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Affiliation(s)
- Jing Xiong
- Department of Neonatology, Children’s Hospital of Chongqing Medical University, Chongqing, China
| | - Long Chen
- Department of Neonatology, Children’s Hospital of Chongqing Medical University, Chongqing, China
| | - Li Zhang
- Department of Pulmonology, Children’s Hospital of Chongqing Medical University, Chongqing, China
| | - Lei Bao
- Department of Neonatology, Children’s Hospital of Chongqing Medical University, Chongqing, China
| | - Yuan Shi
- Department of Neonatology, Children’s Hospital of Chongqing Medical University, Chongqing, China
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Advantage of fat-derived CD73 positive cells from multiple human tissues, prospective isolated mesenchymal stromal cells. Sci Rep 2020; 10:15073. [PMID: 32934322 PMCID: PMC7493914 DOI: 10.1038/s41598-020-72012-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Accepted: 08/17/2020] [Indexed: 02/06/2023] Open
Abstract
Somatic stem cells have been isolated from multiple human tissues for their potential usefulness in cell therapy. Currently, mesenchymal stromal cells (MSCs) are prepared after several passages requiring a few months of cell culture. In this study, we used a prospective isolation method of somatic stem cells from gestational or fat tissues, which were identified using CD73 antibody. CD73-positive population from various tissues existed individually in flowcytometric pattern, especially subcutaneous fat- and amniotic-derived cells showed the highest enrichment of CD73-positive cells. Moreover, the cell populations isolated with the prospective method showed higher proliferative capacity and stem cell marker expression, compared to the cell populations which isolated through several passages of culturing whole living cells: which we named "conventional method" in this paper. Furthermore, the therapeutic potential of CD73-positive cells was evaluated in vivo using a mouse model of pulmonary fibrosis. After intranasal administration, murine CD73-positive cells reduced macrophage infiltration and inhibited fibrosis development. These results suggest that further testing using CD73-positive cells may be beneficial to help establish the place in regenerative medicine use.
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Ghamari SH, Abbasi-Kangevari M, Tayebi T, Bahrami S, Niknejad H. The Bottlenecks in Translating Placenta-Derived Amniotic Epithelial and Mesenchymal Stromal Cells Into the Clinic: Current Discrepancies in Marker Reports. Front Bioeng Biotechnol 2020; 8:180. [PMID: 32232037 PMCID: PMC7083014 DOI: 10.3389/fbioe.2020.00180] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Accepted: 02/24/2020] [Indexed: 12/23/2022] Open
Abstract
Placenta-derived amniotic cells have prominent features for application in regenerative medicine. However, there are still discrepancies in the characterization of human amniotic epithelial and mesenchymal stromal cells. It seems crucial that the characterization of human amniotic membrane cells be investigated to determine whether there are currently discrepancies in their characterization reports. In addition, possible causes for the witnessed discrepancies need to be addressed toward paving the way for further clinical application and safer practices. The objective of this review is to investigate the marker characterization as well as the potential causes of the discrepancies in the previous reports on placenta-derived amniotic epithelial and mesenchymal stromal cells. The current discrepancies could be potentially due to reasons including passage number and epithelial to mesenchymal transition (EMT), cell heterogeneity, isolation protocols and cross-contamination, the region of cell isolation on placental disk, measuring methods, and gestational age.
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Affiliation(s)
- Seyyed-Hadi Ghamari
- Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohsen Abbasi-Kangevari
- Student Research Committee, Social Determinants of Health Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Tahereh Tayebi
- Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Soheyl Bahrami
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology in AUVA Research Center, Vienna, Austria
| | - Hassan Niknejad
- Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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