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Lu Q, Yu M, Shen C, Chen X, Feng T, Yao Y, Li J, Li H, Tu W. Negligible immunogenicity of induced pluripotent stem cells derived from human skin fibroblasts. PLoS One 2014; 9:e114949. [PMID: 25503995 PMCID: PMC4263724 DOI: 10.1371/journal.pone.0114949] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2014] [Accepted: 11/16/2014] [Indexed: 12/29/2022] Open
Abstract
Human induced pluripotent stem cells (hiPSCs) have potential applications in cell replacement therapy and regenerative medicine. However, limited information is available regarding the immunologic features of iPSCs. In this study, expression of MHC and T cell co-stimulatory molecules in hiPSCs, and the effects on activation, proliferation and cytokine production in allogeneic human peripheral blood mononuclear cells were examined. We found that no-integrate hiPSCs had no MHC-II and T cell co-stimulatory molecules expressions but had moderate level of MHC-I and HLA-G expressions. In contrast to human skin fibroblasts (HSFs) which significantly induced allogeneic T cell activation and proliferation, hiPSCs failed to induce allogeneic CD45+ lymphocyte and CD8+ T cell activation and proliferation but could induce a low level of allogeneic CD4+ T cell proliferation. Unlike HSFs which induced allogeneic lymphocytes to produce high levels of IFN-γ, TNF-α and IL-17, hiPSCs only induced allogeneic lymphocytes to produce IL-2 and IL-10, and promote IL-10-secreting regulatory T cell (Treg) generation. Our study suggests that the integration-free hiPSCs had low or negligible immunogenicity, which may result from their induction of IL-10-secreting Treg.
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Affiliation(s)
- Qiao Lu
- The Joint Research Center of West China Second University Hospital of Sichuan University and Faculty of Medicine of the University of Hong Kong, Sichuan University, Chengdu, Sichuan, 610041, China
- Department of Pediatrics, University Hospital of Hubei University for Nationalities, Enshi, Hubei, 445000, China
| | - Meixing Yu
- The Joint Research Center of West China Second University Hospital of Sichuan University and Faculty of Medicine of the University of Hong Kong, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Chongyang Shen
- The Joint Research Center of West China Second University Hospital of Sichuan University and Faculty of Medicine of the University of Hong Kong, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Xiaoping Chen
- Laboratory of Pathogen Biology, State Key Laboratory of Respiratory Disease, Center for Infection and Immunity, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China
| | - Ting Feng
- The Joint Research Center of West China Second University Hospital of Sichuan University and Faculty of Medicine of the University of Hong Kong, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Yongchao Yao
- Laboratory of Pathogen Biology, State Key Laboratory of Respiratory Disease, Center for Infection and Immunity, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China
| | - Jinrong Li
- The Joint Research Center of West China Second University Hospital of Sichuan University and Faculty of Medicine of the University of Hong Kong, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Hong Li
- The Joint Research Center of West China Second University Hospital of Sichuan University and Faculty of Medicine of the University of Hong Kong, Sichuan University, Chengdu, Sichuan, 610041, China
- Key Laboratory of Obstetric and Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
- * E-mail: (HL); (WT)
| | - Wenwei Tu
- The Joint Research Center of West China Second University Hospital of Sichuan University and Faculty of Medicine of the University of Hong Kong, Sichuan University, Chengdu, Sichuan, 610041, China
- Department of Pediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong SAR, China
- * E-mail: (HL); (WT)
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Low immunogenicity of neural progenitor cells differentiated from induced pluripotent stem cells derived from less immunogenic somatic cells. PLoS One 2013; 8:e69617. [PMID: 23922758 PMCID: PMC3724937 DOI: 10.1371/journal.pone.0069617] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2013] [Accepted: 06/12/2013] [Indexed: 01/29/2023] Open
Abstract
The groundbreaking discovery of induced pluripotent stem cells (iPS cells) provides a new source for cell therapy. However, whether the iPS derived functional lineages from different cell origins have different immunogenicity remains unknown. It had been known that the cells isolated from extra-embryonic tissues, such as umbilical cord mesenchymal cells (UMCs), are less immunogenic than other adult lineages such as skin fibroblasts (SFs). In this report, we differentiated iPS cells from human UMCs and SFs into neural progenitor cells (NPCs) and analyzed their immunogenicity. Through co-culture with allologous peripheral blood mononuclear cells (PBMCs), we showed that UMCs were indeed less immunogenic than skin cells to simulate proliferation of PBMCs. Surprisingly, we found that the NPCs differentiated from UMC-iPS cells retained low immunogenicity as the parental UMCs based on the PBMC proliferation assay. In cytotoxic expression assay, reactions in most kinds of immune effector cells showed more perforin and granzyme B expression with SF-NPCs stimulation than that with UMC-NPCs stimulation in PBMC co-culture system, in T cell co-culture system as well. Furthermore, through whole genome expression microarray analysis, we showed that over 70 immune genes, including all members of HLA-I, were expressed at lower levels in NPCs derived from UMC-iPS cells than that from SF-iPS cells. Our results demonstrated a phenomenon that the low immunogenicity of the less immunogenic cells could be retained after cell reprogramming and further differentiation, thus provide a new concept to generate functional lineages with lower immunogenicity for regenerative medicine.
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