Stem Cells Translational Medicine最新文献

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Study on the Extrapolability of Current Tumorgenicity Test With Mice by Comparing the Syngeneic or Allogeneic Mouse Transplantation Model. 通过比较同种异体小鼠移植模型,研究当前小鼠肿瘤遗传性测试的可推广性。
IF 6 2区 医学
Stem Cells Translational Medicine Pub Date : 2024-06-14 DOI: 10.1093/stcltm/szae019
Takashi Tamura, Tsuyoshi Tahara, Michiko Inoue, Ryota Nanjo, Hirotaka Onoe, Takako Yamamoto, Shin Kawamata
{"title":"Study on the Extrapolability of Current Tumorgenicity Test With Mice by Comparing the Syngeneic or Allogeneic Mouse Transplantation Model.","authors":"Takashi Tamura, Tsuyoshi Tahara, Michiko Inoue, Ryota Nanjo, Hirotaka Onoe, Takako Yamamoto, Shin Kawamata","doi":"10.1093/stcltm/szae019","DOIUrl":"10.1093/stcltm/szae019","url":null,"abstract":"<p><p>The extrapolability of the current tumorigenicity test performed by transplanting human cell product into immunodeficient (NOG) mice was investigated. For this purpose, the susceptibility to form teratomas of NOG mice was assessed by transplanting undifferentiated human-induced pluripotent stem cells (hiPSCs) as positive control cells via the liver, striatum, or tail vein and evaluating the TPD50 value (dose required to form teratomas in half of the transplanted mice). This was then compared to the TPD50 of syngeneic or allogeneic mouse models. The TPD50 of C57/BL/6(B6)-iPSC or 129/Ola(129)-embryonic stem cell (ESC) transplanted into the liver of syngeneic mice was 4.08 × 105 and 4.64 × 104 cells, respectively, while the TPD50 of hiPSC administered into the liver of NOG mice was 4.64 × 104 cells. The TPD50 of B6-miPSC-synergic, 129-mESC-synergic, or 129-cell/B6 allogeneic transplantation into the striatum was 5.09 × 102, 1.0 × 104, and 3.73 × 104 cells, respectively, while that of hiPSC/NOG mice was 1.0 × 103 cells. The TPD50 for B6-miPSC or 129-mESC syngeneic tail vein infusion was 3.16 × 106 or 5.62 × 106 cells, respectively, while no incidence was observed from 1 × 107 B6-miPSCs in 129 mice or hiPSCs in NOG mice infusion study. Although the number of data sets was limited, these data indicate that the teratoma formation from transplanted undifferentiated hiPSCs via the liver or striatum in NOG mice is comparable to that in syngeneic or allogeneic mouse transplantation model, suggesting that the result of the current tumorigenicity test in NOG mice would provide useful information to infer the incidence of teratoma from residual undifferentiated hPSCs in hPSC-derived products after transplantation.</p>","PeriodicalId":21986,"journal":{"name":"Stem Cells Translational Medicine","volume":" ","pages":"572-581"},"PeriodicalIF":6.0,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11165165/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140330134","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Influence of Substrate Stiffness on iPSC-Derived Retinal Pigmented Epithelial Cells. 基底硬度对 iPSC 衍生视网膜色素上皮细胞的影响
IF 6 2区 医学
Stem Cells Translational Medicine Pub Date : 2024-06-14 DOI: 10.1093/stcltm/szae022
Rion J Wendland, Budd A Tucker, Kristan S Worthington
{"title":"Influence of Substrate Stiffness on iPSC-Derived Retinal Pigmented Epithelial Cells.","authors":"Rion J Wendland, Budd A Tucker, Kristan S Worthington","doi":"10.1093/stcltm/szae022","DOIUrl":"10.1093/stcltm/szae022","url":null,"abstract":"<p><p>Retinal degenerative diseases are a major cause of blindness involving the dysfunction of photoreceptors, retinal pigmented epithelium (RPE), or both. A promising treatment approach involves replacing these cells via surgical transplantation, and previous work has shown that cell delivery scaffolds are vital to ensure sufficient cell survival. Thus, identifying scaffold properties that are conducive to cell viability and maturation (such as suitable material and mechanical properties) is critical to ensuring a successful treatment approach. In this study, we investigated the effect of scaffold stiffness on human RPE attachment, survival, and differentiation, comparing immortalized (ARPE-19) and stem cell-derived RPE (iRPE) cells. Polydimethylsiloxane was used as a model polymer substrate, and varying stiffness (~12 to 800 kPa) was achieved by modulating the cross-link-to-base ratio. Post-attachment changes in gene and protein expression were assessed using qPCR and immunocytochemistry. We found that while ARPE-19 and iRPE exhibited significant differences in morphology and expression of RPE markers, substrate stiffness did not have a substantial impact on cell growth or maturation for either cell type. These results highlight the differences in expression between immortalized and iPSC-derived RPE cells, and also suggest that stiffnesses in this range (~12-800 kPa) may not result in significant differences in RPE growth and maturation, an important consideration in scaffold design.</p>","PeriodicalId":21986,"journal":{"name":"Stem Cells Translational Medicine","volume":" ","pages":"582-592"},"PeriodicalIF":6.0,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11165161/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140336857","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Precision Delivery of Human Bone Marrow-Derived Mesenchymal Stem Cells Into the Pancreas Via Intra-arterial Injection Prevents the Onset of Diabetes. 通过动脉内注射将人骨髓间充质干细胞精确输送到胰腺可预防糖尿病的发生
IF 6 2区 医学
Stem Cells Translational Medicine Pub Date : 2024-06-14 DOI: 10.1093/stcltm/szae020
Rosita Primavera, Shobha Regmi, Reza Yarani, Steven Levitte, Jing Wang, Abantika Ganguly, Shashank Chetty, Michele Guindani, Camillo Ricordi, Everett Meyer, Avnesh S Thakor
{"title":"Precision Delivery of Human Bone Marrow-Derived Mesenchymal Stem Cells Into the Pancreas Via Intra-arterial Injection Prevents the Onset of Diabetes.","authors":"Rosita Primavera, Shobha Regmi, Reza Yarani, Steven Levitte, Jing Wang, Abantika Ganguly, Shashank Chetty, Michele Guindani, Camillo Ricordi, Everett Meyer, Avnesh S Thakor","doi":"10.1093/stcltm/szae020","DOIUrl":"10.1093/stcltm/szae020","url":null,"abstract":"<p><p>Mesenchymal stem cells (MSCs) are a promising therapy to potentially treat diabetes given their potent anti-inflammatory and immune-modulatory properties. While these regenerative cells have shown considerable promise in cell culture, their clinical translation has been challenging. In part, this can be attributed to these cells not reaching the pancreas to exert their regenerative effects following conventional intravenous (IV) injection, with the majority of cells being trapped in the lungs in the pulmonary first-pass effect. In the present study, we will therefore examine whether direct delivery of MSCs to the pancreas via an intra-arterial (IA) injection can improve their therapeutic efficacy. Using a mouse model, in which repetitive low doses of STZ induced a gentle, but progressive, hyperglycemia, we tested bone marrow-derived MSCs (BM-MSCs) which we have shown are enriched with pro-angiogenic and immunomodulatory factors. In cell culture studies, BM-MSCs were shown to preserve islet viability and function following exposure to proinflammatory cytokines (IFN-γ, IL-1β, and TNF-α) through an increase in pAkt. When tested in our animal model, mice receiving IV BM-MSCs were not able to mitigate the effects of STZ, however those which received the same dose and batch of cells via IA injection were able to maintain basal and dynamic glycemic control, to similar levels as seen in healthy control animals, over 10 days. This study shows the importance of considering precision delivery approaches to ensure cell-based therapies reach their intended targets to enable them to exert their therapeutic effects.</p>","PeriodicalId":21986,"journal":{"name":"Stem Cells Translational Medicine","volume":" ","pages":"559-571"},"PeriodicalIF":6.0,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11165159/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140289026","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Longitudinal Magnetic Resonance Imaging Tracking of Transplanted Neural Progenitor Cells in the Spinal Cord Utilizing the Bright-Ferritin Mechanism. 利用Bright-Ferritin机制对脊髓中移植的神经祖细胞进行纵向磁共振成像追踪
IF 5.4 2区 医学
Stem Cells Translational Medicine Pub Date : 2024-06-14 DOI: 10.1093/stcltm/szae016
Zixiang Luo, Keyu Zhuang, Seong Jun Kim, Kyle D W Vollett, Zijian Lou, Jian Wang, Hai-Ying Mary Cheng, Mohamad Khazaei, Michael G Fehlings, Hai-Ling Margaret Cheng
{"title":"Longitudinal Magnetic Resonance Imaging Tracking of Transplanted Neural Progenitor Cells in the Spinal Cord Utilizing the Bright-Ferritin Mechanism.","authors":"Zixiang Luo, Keyu Zhuang, Seong Jun Kim, Kyle D W Vollett, Zijian Lou, Jian Wang, Hai-Ying Mary Cheng, Mohamad Khazaei, Michael G Fehlings, Hai-Ling Margaret Cheng","doi":"10.1093/stcltm/szae016","DOIUrl":"10.1093/stcltm/szae016","url":null,"abstract":"<p><p>Human neural progenitor cells (hNPCs) hold promise for treating spinal cord injury. Studies to date have focused on improving their regenerative potential and therapeutic effect. Equally important is ensuring successful delivery and engraftment of hNPCs at the injury site. Unfortunately, no current imaging solution for cell tracking is compatible with long-term monitoring in vivo. The objective of this study was to apply a novel bright-ferritin magnetic resonance imaging (MRI) mechanism to track hNPC transplants longitudinally and on demand in the rat spinal cord. We genetically modified hNPCs to stably overexpress human ferritin. Ferritin-overexpressing (FT) hNPCs labeled with 0.2 mM manganese provided significant T1-induced bright contrast on in vitro MRI, with no adverse effect on cell viability, morphology, proliferation, and differentiation. In vivo, 2 M cells were injected into the cervical spinal cord of Rowett nude rats. MRI employed T1-weighted acquisitions and T1 mapping on a 3 T scanner. Conventional short-term cell tracking was performed using exogenous Mn labeling prior to cell transplantation, which displayed transient bright contrast on MRI 1 day after cell transplantation and disappeared after 1 week. In contrast, long-term cell tracking using bright-ferritin allowed on-demand signal recall upon Mn supplementation and precise visualization of the surviving hNPC graft. In fact, this new cell tracking technology identified 7 weeks post-transplantation as the timepoint by which substantial hNPC integration occurred. Spatial distribution of hNPCs on MRI matched that on histology. In summary, bright-ferritin provides the first demonstration of long-term, on-demand, high-resolution, and specific tracking of hNPCs in the rat spinal cord.</p>","PeriodicalId":21986,"journal":{"name":"Stem Cells Translational Medicine","volume":" ","pages":"546-558"},"PeriodicalIF":5.4,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11165155/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140065985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Curcumin Improves Functional Recovery of Ruptured Tendon by Promoting Tenogenesis via PI3K/Akt Signaling. 姜黄素通过 PI3K/Akt 信号转导促进肌腱腱鞘生成,从而改善断裂肌腱的功能恢复。
IF 5.4 2区 医学
Stem Cells Translational Medicine Pub Date : 2024-05-14 DOI: 10.1093/stcltm/szae007
Zhan Zhang, Yiqun Zhang, Han Wang, Baolong Li, Rangjuan Cao, Yan Li, Shusen Cui, Weizhong Zhang
{"title":"Curcumin Improves Functional Recovery of Ruptured Tendon by Promoting Tenogenesis via PI3K/Akt Signaling.","authors":"Zhan Zhang, Yiqun Zhang, Han Wang, Baolong Li, Rangjuan Cao, Yan Li, Shusen Cui, Weizhong Zhang","doi":"10.1093/stcltm/szae007","DOIUrl":"10.1093/stcltm/szae007","url":null,"abstract":"<p><strong>Objective: </strong>In our previous study, we found that local release of curcumin from nanomicelles prevents peritendinous adhesion during Achilles tendon healing. The aim of this study is to further investigate the signaling integrated by curcumin to direct the tenogenetic program of tendon stem cells contributing to tendon healing.</p><p><strong>Methods: </strong>A surgical model of tendon rupture and repair (TRR) was established in rats. Peritendinous adhesion and inflammation, biomechanical function, and expression of β-catenin and epithelial cellular adhesion molecule (EpCAM) were determined. A dataset was analyzed to investigate differentially expressed genes and enriched genes related to the signaling pathways. Tendon stem cells were treated with curcumin to investigate the cellular and molecular events as well as the signaling pathway.</p><p><strong>Results: </strong>In rat TRR model, curcumin treatment resulted in not only significantly decreased peritendinous inflammatory but also improved tendon functional recovery along with significantly increased expressions of EpCAM and β-catenin. Analysis of the dataset indicated that the enriched genes were positively related to differentiation pathways but negatively related to proliferation pathways. In rat tendon stem cells, curcumin treatment inhibited proliferation but promoted differentiation. Curcumin's antioxidative activity was associated with tenogenesis. The upregulated expression of tendon lineage-specific markers was dependent on phosphatidylinositol 3'-kinase/Akt (PI3K/Akt) pathway which could be a potential mechanism of tenogenesis of curcumin treatment.</p><p><strong>Conclusion: </strong>Curcumin could improve tendon functional recovery via promoting tenogenesis in addition to its antioxidant and anti-inflammatory activities. Curcumin induced differentiation of tendon stem/progenitor cell into tenocytes via PI3K/Akt signaling pathway. This finding provided evidence for the application of curcumin to prevent adhesion during tendon repair.</p>","PeriodicalId":21986,"journal":{"name":"Stem Cells Translational Medicine","volume":" ","pages":"477-489"},"PeriodicalIF":5.4,"publicationDate":"2024-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11092270/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139932966","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Stem Cell Derived Extracellular Vesicle Therapy for Multiple Sclerosis, A Systematic Review and Meta-Analysis of Preclinical Studies. 干细胞衍生的细胞外囊泡疗法治疗多发性硬化症,临床前研究的系统回顾和元分析。
IF 5.4 2区 医学
Stem Cells Translational Medicine Pub Date : 2024-05-14 DOI: 10.1093/stcltm/szae011
Mehri Barabadi, Madison C B Paton, Naveen Kumar, Rebecca Lim, Natalie L Payne
{"title":"Stem Cell Derived Extracellular Vesicle Therapy for Multiple Sclerosis, A Systematic Review and Meta-Analysis of Preclinical Studies.","authors":"Mehri Barabadi, Madison C B Paton, Naveen Kumar, Rebecca Lim, Natalie L Payne","doi":"10.1093/stcltm/szae011","DOIUrl":"10.1093/stcltm/szae011","url":null,"abstract":"<p><p>Stem cell therapy holds promise for multiple sclerosis (MS), with efficacy of different stem cell types reported across a range of preclinical MS animal models. While stem cell therapy has been approved for a small number of diseases in humans, extracellular vesicles (EVs) may provide an efficacious, cost-effective, and safer alternative to stem cell therapy. To this end, we conducted a systematic review with meta-analysis to assess the effectiveness of stem cell-derived secretome (EV and conditioned media (CM)) in animal models of MS. The data were extracted to calculate standardized mean differences for primary outcome measure of disease severity, using a random effect model. Additionally, several subgroup analyses were conducted to assess the impact of various study variables such as stem cell type and source, stem cell modification, route and time of administration, number of animals and animal's age, and EV isolation methods on secondary outcome. Publication quality and risk of bias were assessed. Overall, 19 preclinical studies were included in the meta-analysis where stem cell EV/CM was found to significantly reduce disease severity in EV-treated (SMD = 2, 95% CI: 1.18-2.83, P < .00001) and CM-treated animals (SMD = 2.58, 95% CI: 1.34-3.83, P < .00001) compared with controls. Our analysis indicated that stem cell secretome has a positive effect on reducing demyelination, systemic neuroinflammation, and disease severity in preclinical models of MS. These findings indicate a potential therapeutic effect that merits investigation and validation in clinical settings.</p>","PeriodicalId":21986,"journal":{"name":"Stem Cells Translational Medicine","volume":" ","pages":"436-447"},"PeriodicalIF":5.4,"publicationDate":"2024-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11092271/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140176547","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Impact of FDA's HCT/P ZIKV Recommendations on Cord Blood Unit Eligibility and Utilization in a Large Public Cord Blood Bank. FDA 的 HCT/P ZIKV 建议对大型公共脐带血库中脐带血单位资格和使用的影响。
IF 6 2区 医学
Stem Cells Translational Medicine Pub Date : 2024-05-14 DOI: 10.1093/stcltm/szae008
Dana S Guggenheim, Joanne Kurtzberg, Beth H Shaz
{"title":"Impact of FDA's HCT/P ZIKV Recommendations on Cord Blood Unit Eligibility and Utilization in a Large Public Cord Blood Bank.","authors":"Dana S Guggenheim, Joanne Kurtzberg, Beth H Shaz","doi":"10.1093/stcltm/szae008","DOIUrl":"10.1093/stcltm/szae008","url":null,"abstract":"<p><strong>Background: </strong>Cord blood units (CBUs) that are ineligible for licensure due to incomplete compliance with FDA recommendations may be used for hematopoietic stem cell transplantation under urgent medical need and an Investigational Drug Application. The largest reason for CBU donor ineligibility is Zika virus (ZIKV) risk. The study's objective was to analyze the impact of current FDA recommendations for ZIKA risk on a large public cord blood bank and propose updated recommendations.</p><p><strong>Methods: </strong>We performed a retrospective analysis of Carolinas Cord Blood Bank (CCBB), an FDA licensed public CBB, using data from January 1, 2016 to November 21, 2023 and compared FDA recommendations for transfusion transmitted infections (TTI) for blood products and relevant communicable disease agents or diseases for human cell, tissue, or cellular or tissue-based products (HCT/Ps).</p><p><strong>Results: </strong>CCBB: 9057 (84.3% licensed) CBUs were banked. 984/1682 (58.5%) of unlicensed CBUs had ZIKV risk. 22.0% of CBUs with ZIKV risk were from Hispanic parents, compared to 16.1% of all units. 31 of IND CBUs (11 due to ZIKV risk without reported ZIKV transmission) were safely infused. FDA Guidance: HCT/P ZIKV, HIV, and vCJD recommendations have not been updated since 2018 in contrast to FDA removal of ZIKV as a relevant TTI in 2021 and updating HIV and vCJD guidance related to TTI in 2023 and 2022, respectively.</p><p><strong>Discussion: </strong>The FDA should consider new data to revise the HCT/P donor eligibility recommendations, which will increase the number of eligible HCT/P donors, and potentially improve access to therapies for a more diverse patient population.</p>","PeriodicalId":21986,"journal":{"name":"Stem Cells Translational Medicine","volume":" ","pages":"448-453"},"PeriodicalIF":6.0,"publicationDate":"2024-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11092266/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140194551","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Manufacturing Parameters for the Creation of Clinical-Grade Human-Induced Pluripotent Stem Cell Lines From Umbilical Cord Mesenchymal Stromal Cells. 利用脐带间充质基质细胞创建临床级人类诱导多能干细胞系的制造参数。
IF 6 2区 医学
Stem Cells Translational Medicine Pub Date : 2024-05-14 DOI: 10.1093/stcltm/szae010
Liziane Raquel Beckenkamp, Camila Gomes da Silva, Mônica Luiza Immig Von Hohendorff, Karolyn Sassi Ogliari
{"title":"Manufacturing Parameters for the Creation of Clinical-Grade Human-Induced Pluripotent Stem Cell Lines From Umbilical Cord Mesenchymal Stromal Cells.","authors":"Liziane Raquel Beckenkamp, Camila Gomes da Silva, Mônica Luiza Immig Von Hohendorff, Karolyn Sassi Ogliari","doi":"10.1093/stcltm/szae010","DOIUrl":"10.1093/stcltm/szae010","url":null,"abstract":"<p><p>Induced pluripotent stem cells (iPSCs) are reprogrammed cells with a remarkable capacity for unlimited expansion and differentiation into various cell types. Companies worldwide are actively engaged in developing clinical-grade iPSC lines to address the needs of regenerative medicine, immunotherapies, and precision medicine. However, ensuring the safety and quality of iPSCs is essential, with adherence to Good Manufacturing Practices (GMP) and ethical considerations being paramount. Perinatal cell and tissue banks, such as umbilical cord (UC) blood and tissue banks, are emerging as ideal sources for generating iPSCs due to their unique characteristics and GMP compliance. These banks provide access to immature cells with limited environmental exposure, known family and medical histories of donors, and readily available resources, thereby reducing the time and cost associated with personalized treatment strategies. This study describes the establishment of the first clinical-grade iPSC lines from umbilical cord mesenchymal stromal cells in Brazil. The process involved rigorous quality control measures, safety assessments, and adherence to regulatory standards, resulting in iPSCs with the necessary characteristics for clinical use, including sterility, genomic integrity, and stability. Importantly, the study contributes to the development of a Current Good Manufacturing Practice-compliant iPSC production pipeline in Brazil, using commercially available, chemically defined, and xeno-free products, along with validation by national outsourced laboratories, thereby facilitating the adoption of this technology within the country. The study emphasizes Brazil's contribution to the progress of translational medicine and the promotion of scientific advancements within the field of regenerative and precision medicine.</p>","PeriodicalId":21986,"journal":{"name":"Stem Cells Translational Medicine","volume":" ","pages":"454-461"},"PeriodicalIF":6.0,"publicationDate":"2024-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11092272/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139973516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Rejuvenation and Functional Restoration of Aged Adipose Stem Cells by DUXAP10 Knockdown via the Regulation of the miR-214-3p/RASSF5 Axis. 通过调控 miR-214-3p/RASSF5 轴敲除 DUXAP10 使衰老的脂肪干细胞恢复活力和功能重建
IF 5.4 2区 医学
Stem Cells Translational Medicine Pub Date : 2024-05-14 DOI: 10.1093/stcltm/szae015
Sen Ren, Chengcheng Li, Hewei Xiong, Qian Wu, Xiaohui Wu, Zhongwei Xiong, Lixing Dong, Bing Shu, Wei Wei, Chao Ma, Xiang Li, Jincao Chen
{"title":"The Rejuvenation and Functional Restoration of Aged Adipose Stem Cells by DUXAP10 Knockdown via the Regulation of the miR-214-3p/RASSF5 Axis.","authors":"Sen Ren, Chengcheng Li, Hewei Xiong, Qian Wu, Xiaohui Wu, Zhongwei Xiong, Lixing Dong, Bing Shu, Wei Wei, Chao Ma, Xiang Li, Jincao Chen","doi":"10.1093/stcltm/szae015","DOIUrl":"10.1093/stcltm/szae015","url":null,"abstract":"<p><p>Adipose stem cell (ASC)-based therapies provide an encouraging option for tissue repair and regeneration. However, the function of these cells declines with aging, which limits their clinical transformation. Recent studies have outlined the involvement of long non-coding RNAs in stem cell aging. Here, we reanalyzed our published RNA sequencing (RNA-seq) data profiling differences between ASCs from young and old donors and identified a lncRNA named double homeobox A pseudogene 10 (DUXAP10) as significantly accumulated in aged ASCs. Knocking down DUXAP10 promoted stem cell proliferation and migration and halted cell senescence and the secretion of proinflammatory cytokines. In addition, DUXAP10 was located in the cytoplasm and functioned as a decoy for miR-214-3p. miR-214-3p was downregulated in aged ASCs, and its overexpression rejuvenated aged ASCs and reversed the harm caused by DUXAP10. Furthermore, Ras Association Domain Family Member 5 (RASSF5) was the target of miR-214-3p and was upregulated in aged ASCs. Overexpressing DUXAP10 and inhibiting miR-214-3p both enhanced RASSF5 content in ASCs, while DUXAP10 knockdown promoted the therapeutic ability of aged ASCs for skin wound healing. Overall, this study offers new insights into the mechanism of age-related ASC dysfunction and names DUXAP10 and miR-214-3p as potential targets for energizing aged stem cells.</p>","PeriodicalId":21986,"journal":{"name":"Stem Cells Translational Medicine","volume":" ","pages":"462-476"},"PeriodicalIF":5.4,"publicationDate":"2024-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11092281/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140068677","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Advances in 3D Bioprinted Cardiac Tissue Using Stem Cell-Derived Cardiomyocytes. 利用干细胞衍生的心肌细胞制作三维生物打印心脏组织的进展。
IF 5.4 2区 医学
Stem Cells Translational Medicine Pub Date : 2024-05-14 DOI: 10.1093/stcltm/szae014
Jacqueline M Bliley, Maria A Stang, Anne Behre, Adam W Feinberg
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