Stem Cells Translational Medicine最新文献

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Nutraceuticals: using food to enhance brain health by modulating postnatal neurogenesis in animal models and patient populations. 营养保健品:利用食物通过调节动物模型和患者群体的产后神经发生来增强大脑健康。
IF 5.4 2区 医学
Stem Cells Translational Medicine Pub Date : 2025-05-19 DOI: 10.1093/stcltm/szaf006
Jun Ong, Qingqing Wu, Kazunori Sasaki, Hiroko Isoda, Francis G Szele
{"title":"Nutraceuticals: using food to enhance brain health by modulating postnatal neurogenesis in animal models and patient populations.","authors":"Jun Ong, Qingqing Wu, Kazunori Sasaki, Hiroko Isoda, Francis G Szele","doi":"10.1093/stcltm/szaf006","DOIUrl":"10.1093/stcltm/szaf006","url":null,"abstract":"<p><p>Adult hippocampal neurogenesis, while occurring throughout life, decreases with age and in some neurodegenerative diseases. As decreased hippocampal neurogenesis is correlated with cognitive decline, efforts have been made to increase levels of neurogenesis, either through natural compounds, environmental interventions or novel pharmacological compounds. Nutraceuticals are food products with medical benefits such as antioxidation, anti-inflammation or neuroprotection. There has been increasing interest in these \"functional foods\" and their active compounds in recent years, providing natural alternatives to de novo pharmaceuticals. This review highlights key nutraceuticals that promote neurogenesis and/or improve cognitive outcomes. By outlining the effects of these compounds in the animal models employed and in clinical populations, we also suggest further investigations. We examine common targets and pathways through which these nutraceuticals are believed to exert pro-neurogenic effects. Most nutraceutical preparations contain multiple components, any of which may exert effects on neurogenesis. Identifying key active compounds in nutraceuticals may enable researchers to better understand their effects and standardize doses across studies. The less stringent regulatory requirements for nutraceuticals can be a double-edged sword. While allowing easier access to the beneficial effects, higher doses of these compounds may have detrimental effects. Hence, research in this field should not only aim to identify the benefits of these compounds but also to identify efficacious and safe dosages for them. Our aims are to provide understanding of nutraceuticals, provide evidence for their benefits on neurogenesis and neurogenesis-related behaviors and finally to summarize potential mechanisms and help guide future work.</p>","PeriodicalId":21986,"journal":{"name":"Stem Cells Translational Medicine","volume":"14 5","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12087346/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144094846","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
Emerging clinical applications of ADAR based RNA editing. 基于ADAR的RNA编辑的新兴临床应用。
IF 5.4 2区 医学
Stem Cells Translational Medicine Pub Date : 2025-05-19 DOI: 10.1093/stcltm/szaf016
Joseph Rainaldi, Prashant Mali, Sami Nourreddine
{"title":"Emerging clinical applications of ADAR based RNA editing.","authors":"Joseph Rainaldi, Prashant Mali, Sami Nourreddine","doi":"10.1093/stcltm/szaf016","DOIUrl":"10.1093/stcltm/szaf016","url":null,"abstract":"<p><p>RNA editing via adenosine deaminases acting on RNA (ADARs) offers precise and reversible modifications at the RNA level, complementing traditional DNA-targeting therapies. ADAR enzymes catalyze the conversion of adenosine to inosine within double-stranded RNA, influencing critical cellular processes such as translation, splicing, and RNA stability. Utilizing endogenous ADARs guided by exogenous guide RNAs enables site-specific RNA editing without the need for transgenic editor expression, minimizing immunogenicity, and enhancing control over gene expression. Towards addressing the challenges in ensuring specificity, optimizing delivery methods, and navigating regulatory landscapes, ongoing innovations in guide RNA design, delivery technologies, and computational modeling are propelling the field forward. Already, initial clinical advancements are demonstrating the potential of ADAR-mediated RNA editing in treating human diseases. Collaborative efforts among researchers, clinicians, and industry partners are overcoming existing hurdles, progressively positioning ADAR-mediated RNA editing to revolutionize personalized medicine and provide effective treatments for a wide array of historically intractable diseases.</p>","PeriodicalId":21986,"journal":{"name":"Stem Cells Translational Medicine","volume":"14 5","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12105611/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144151821","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
Correction to: Fate and Efficacy of Engineered Allogeneic Stem Cells Targeting Cell Death and Proliferation Pathways in Primary and Brain Metastatic Lung Cancer. 修正:靶向细胞死亡和增殖途径的工程同种异体干细胞在原发性和脑转移性肺癌中的命运和疗效。
IF 5.4 2区 医学
Stem Cells Translational Medicine Pub Date : 2025-05-19 DOI: 10.1093/stcltm/szaf021
{"title":"Correction to: Fate and Efficacy of Engineered Allogeneic Stem Cells Targeting Cell Death and Proliferation Pathways in Primary and Brain Metastatic Lung Cancer.","authors":"","doi":"10.1093/stcltm/szaf021","DOIUrl":"10.1093/stcltm/szaf021","url":null,"abstract":"","PeriodicalId":21986,"journal":{"name":"Stem Cells Translational Medicine","volume":"14 5","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12105609/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144151818","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
Diet, dementia, and the hippocampus. 饮食,痴呆和海马体。
IF 5.4 2区 医学
Stem Cells Translational Medicine Pub Date : 2025-05-19 DOI: 10.1093/stcltm/szaf007
Frederick Charles Campbell
{"title":"Diet, dementia, and the hippocampus.","authors":"Frederick Charles Campbell","doi":"10.1093/stcltm/szaf007","DOIUrl":"10.1093/stcltm/szaf007","url":null,"abstract":"","PeriodicalId":21986,"journal":{"name":"Stem Cells Translational Medicine","volume":"14 5","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12087336/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144094838","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
A single-center, phase 1/2a trial of hESC-derived mesenchymal stem cells (MR-MC-01) for safety and efficacy in interstitial cystitis patients. hesc来源的间充质干细胞(MR-MC-01)在间质性膀胱炎患者中的安全性和有效性的单中心,1/2a期试验。
IF 5.4 2区 医学
Stem Cells Translational Medicine Pub Date : 2025-05-19 DOI: 10.1093/stcltm/szaf018
Yoon Soo Kyung, Ki-Sung Hong, Hyung-Min Chung, Jung Hyun Shin, Myung-Soo Choo, Eun-Young Kim, Jeong Min Shin, Ah Reum Kang, Jin Won Seo, Juhyun Park, Se-Pill Park
{"title":"A single-center, phase 1/2a trial of hESC-derived mesenchymal stem cells (MR-MC-01) for safety and efficacy in interstitial cystitis patients.","authors":"Yoon Soo Kyung, Ki-Sung Hong, Hyung-Min Chung, Jung Hyun Shin, Myung-Soo Choo, Eun-Young Kim, Jeong Min Shin, Ah Reum Kang, Jin Won Seo, Juhyun Park, Se-Pill Park","doi":"10.1093/stcltm/szaf018","DOIUrl":"10.1093/stcltm/szaf018","url":null,"abstract":"<p><p>This study investigated the safety and efficacy of MR-MC-01, a mesenchymal stem cell therapy derived from human embryonic stem cells, in patients with interstitial cystitis (IC), particularly those with Hunner lesions unresponsive to pentosan polysulfate sodium (PPS). Conducted as a prospective, randomized, double-blind, placebo-controlled phase I/IIa clinical trial, it enrolled 22 patients, with six completing phase I and 16 participating in phase IIa. Phase I tested 2 doses (2.0 × 107 and 5.0 × 107 cells) to determine the maximum tolerated dose (MTD), revealing no dose-limiting toxicities and only mild adverse events such as transient hemorrhage and bladder pain. In phase IIa, 12 participants received the MTD of 5.0 × 107 cells, and 4 received placebo. Significant reductions in interstitial cystitis questionnaire (ICQ) and pain urgency frequency (PUF) scores were observed in the treatment group. Improvements were noted in nocturnal voiding frequency and Hunner lesion size, with 8 patients showing either a reduction or complete resolution of lesions after 6 months. The global response assessment (GRA) reported moderate to marked improvement in 41.67% of treated patients versus 25% in the placebo group. MR-MC-01 demonstrated no serious drug-related adverse events, highlighting its favorable safety profile. These findings suggest that MR-MC-01 not only alleviates symptoms but also promotes structural recovery in IC, making it a promising treatment option. Further large-scale, long-term studies are warranted to confirm these results and optimize therapeutic protocols. (Identifier: NCT04610359).</p>","PeriodicalId":21986,"journal":{"name":"Stem Cells Translational Medicine","volume":"14 5","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12087345/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144094762","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
Long term event-free survival following cell-based therapy in patients with cardiomyopathy: the HYPERION observational cohort. 心肌病患者细胞治疗后的长期无事件生存率:HYPERION观察队列。
IF 5.4 2区 医学
Stem Cells Translational Medicine Pub Date : 2025-05-19 DOI: 10.1093/stcltm/szaf010
Russell G Saltzman, Andrew Sundin, Lina V Caceres, Jairo A Tovar, Ana Maria Garzon, Maria A Cabreja, Hossein Shayestehyekta, Jeanette Soto, Dushyantha Jayaweera, Aisha Khan, Ivonne H Schulman, Raul D Mitrani, Joshua M Hare
{"title":"Long term event-free survival following cell-based therapy in patients with cardiomyopathy: the HYPERION observational cohort.","authors":"Russell G Saltzman, Andrew Sundin, Lina V Caceres, Jairo A Tovar, Ana Maria Garzon, Maria A Cabreja, Hossein Shayestehyekta, Jeanette Soto, Dushyantha Jayaweera, Aisha Khan, Ivonne H Schulman, Raul D Mitrani, Joshua M Hare","doi":"10.1093/stcltm/szaf010","DOIUrl":"10.1093/stcltm/szaf010","url":null,"abstract":"<p><strong>Introduction: </strong>There is limited long-term clinical outcome data supporting the use of cell-based therapy to treat heart failure. The HYPERION study (NCT03071835) followed long-term outcomes of patients with ischemic cardiomyopathy (ICM) and non-ischemic cardiomyopathy (NIDCM) who received mesenchymal stromal cells (MSC). We hypothesized that improved cardiac parameters predict longer event-free survival.</p><p><strong>Methods: </strong>We performed a Kaplan-Meier analysis to examine event-free survival as the primary outcome. Time-to-event information was captured from all eligible participants. Endpoint events were defined as death (all-cause), Left Ventricular Assist Device (LVAD) placement, or Heart Transplant. Subjects were categorized based on increase in Left Ventricular Ejection Fraction (LVEF) or decrease in Left Ventricular End Diastolic Volume (LVEDV) for comparisons within disease etiologies.</p><p><strong>Results: </strong>There were 134 men and 21 women, with mean age 60.0 ± 11.0 years. There were 121 (78%) with ICM and 34 (22%) with NIDCM. By the end of long-term follow-up (~13 years), 38 (24.5%) subjects had deceased, 5 (3.2%) received LVAD, and 8 (5.2%) underwent heart transplantation. Post-therapy increase of ≥5% LVEF was associated with longer event-free survival in NIDCM (HR:0.31; 95%CI, 0.11,0.86; P = .025), but not ICM (HR:1.14; 95%CI, 0.47,2.72; P = .776). Conversely, reduction in left ventricular end-diastolic volume (LVEDV) was associated with longer event-free survival in ICM (HR:0.16; 95%CI, 0.05, 0.55; P = .008) but not NIDCM (HR:0.35; 95%CI, 0.1,1.2; P = .098). ICM improvers had LVEDV of 225.7 ± 95.9 mL at baseline and 209.0 ± 100.6 mL by year 5 (P = .046). NIDCM improvers had LVEF of 27.2 ± 8.9% at baseline and 36.1 ± 11.6% by year 5 (P = .018).</p><p><strong>Conclusion: </strong>In this long-term observational cohort analysis, improvement of LVEF and/or reduction in LVEDV was associated with survival benefits among subjects with NIDCM and ICM, respectively. In both etiologies the respective improvements are sustained for up to 5 years, providing evidence that cell-based therapy may be a promising and durable treatment option for patients with heart failure.</p>","PeriodicalId":21986,"journal":{"name":"Stem Cells Translational Medicine","volume":"14 5","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12105610/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144151797","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
Zinc finger protein 750 is a novel regulator of osteoblast differentiation and bone homeostasis by transcriptionally deactivating SNAI1 signaling. 锌指蛋白750是一种通过转录失活SNAI1信号来调控成骨细胞分化和骨稳态的新型调节因子。
IF 5.4 2区 医学
Stem Cells Translational Medicine Pub Date : 2025-04-22 DOI: 10.1093/stcltm/szaf013
Xiaoli Shi, Xueli Jia, Wei Liu, Liwen Shi, Zheng Yang, Jie Zhou, Xiaoxia Li, Baoli Wang
{"title":"Zinc finger protein 750 is a novel regulator of osteoblast differentiation and bone homeostasis by transcriptionally deactivating SNAI1 signaling.","authors":"Xiaoli Shi, Xueli Jia, Wei Liu, Liwen Shi, Zheng Yang, Jie Zhou, Xiaoxia Li, Baoli Wang","doi":"10.1093/stcltm/szaf013","DOIUrl":"https://doi.org/10.1093/stcltm/szaf013","url":null,"abstract":"<p><p>Zinc finger protein 750 (ZNF750) has been identified as a potential tumor suppressor across multiple malignancies. Nevertheless, the specific involvement of ZNF750 in the regulation of mesenchymal cell differentiation and bone homeostasis has yet to be elucidated. In the current study, we observed a substantial presence of ZNF750 in bone tissue and noted alterations in its expression during osteogenic differentiation of mesenchymal progenitor cells. Functional experiments indicated that ZNF750 promoted osteogenic differentiation while impeding adipogenic differentiation from mesenchymal stem/progenitor cells. Further mechanistic investigations revealed that ZNF750 transcriptionally suppressed the expression of Snail family transcriptional repressor 1 (SNAI1) by binding to the proximal promoter region of Snai1 gene, thereby activating Wnt/β-catenin signaling. SNAI1 exerted opposing effects on cell differentiation towards osteoblasts and adipocytes in comparison to ZNF750. The overexpression of SNAI1 counteracted the dysregulated osteogenic and adipogenic differentiation induced by ZNF750. Furthermore, the transplantation of Znf750-silenced bone marrow stromal cells into the marrow of wild-type mice resulted in a reduction in cancellous and cortical bone mass, alongside a decrease in osteoblasts and an increase in marrow adipocytes, while the number of osteoclasts remained unchanged. This study presents the first demonstration that ZNF750 regulates the differentiation of osteoblasts and adipocytes from mesenchymal stem/progenitor cells by transcriptionally deactivating SNAI1 signaling, thereby contributing to the maintenance of bone homeostasis. It suggests that ZNF750 may represent a promising therapeutic target for metabolic bone disorders such as osteoporosis.</p>","PeriodicalId":21986,"journal":{"name":"Stem Cells Translational Medicine","volume":"14 4","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12079655/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144080595","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
Adipose-mesenchymal stem cells enhance the formation of auricular cartilage in vitro and in vivo. 脂肪间充质干细胞在体外和体内均能促进耳廓软骨的形成。
IF 5.4 2区 医学
Stem Cells Translational Medicine Pub Date : 2025-04-22 DOI: 10.1093/stcltm/szae098
Dominika Zielinska, Katarzyna Micka-Michalak, Hyrije Ademi, Philip Fisch, Roland Boeni, Thomas Linder, Ueli Moehrlen, Thomas Biedermann, Agnes S Klar
{"title":"Adipose-mesenchymal stem cells enhance the formation of auricular cartilage in vitro and in vivo.","authors":"Dominika Zielinska, Katarzyna Micka-Michalak, Hyrije Ademi, Philip Fisch, Roland Boeni, Thomas Linder, Ueli Moehrlen, Thomas Biedermann, Agnes S Klar","doi":"10.1093/stcltm/szae098","DOIUrl":"https://doi.org/10.1093/stcltm/szae098","url":null,"abstract":"<p><p>Patients suffering from microtia have limited treatment options for auricular reconstruction due to donor-site morbidity, complications, and unaesthetic outcome. Therefore, tissue engineering emerged as an alternative therapeutic option. Here, we generated and characterized human auricular cartilage using differentiated human adipose mesenchymal stem cells (hASCs) combined with human auricular chondrocytes. The differentiated hASCs were analysed for their morphology, phenotype, gene, and protein expression of chondrogenic markers, and biochemical composition at different time points in 2D and 3D in vitro. Importantly, we improved conditions for chondrogenic differentiation of hASCs in vitro to enhance their proliferation, survival, and deposition of cartilaginous-matrix proteins. In particular, gene expression analysis revealed an upregulation of cartilage oligomeric matrix protein (COMP) and aggrecan core protein (ACAN) in hASCs using the improved differentiation protocol in vitro. Additionally, we observed that co-seeding of hASCs with chondrocytes in a 1:5 ratio significantly enhanced the de novo auricular cartilage formation in a collagen-I bioink after 8 weeks on immunodeficient rat. In particular, the co-culture resulted in reduced shrinkage, and increased cartilage matrix production as confirmed by GAG deposition in vivo. Our results demonstrate that in co-cultures, hASCs stimulate cartilage formation due to a synergistic effect: hASCs' differentiation into chondrocytes and a trophic effect of hASCs on human auricular chondrocytes. Here we demonstrate the successful use of an hASC-chondrocyte co-culture technique for auricular cartilage tissue engineering in 3D collagen-I bioink. This co-culture approach omits the major drawbacks of traditional cartilage transplantation and thus, represents a fundamental step towards clinical translation.</p>","PeriodicalId":21986,"journal":{"name":"Stem Cells Translational Medicine","volume":"14 4","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12042163/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144031826","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
Mixed lymphocyte reaction-conditioned MSC-derived extracellular vesicles enhance graft survival via miR-638-mediated immunoregulation. 混合淋巴细胞反应条件下的msc来源的细胞外囊泡通过mir -638介导的免疫调节增强移植物存活。
IF 5.4 2区 医学
Stem Cells Translational Medicine Pub Date : 2025-04-22 DOI: 10.1093/stcltm/szaf009
Yue Ding, Jiyuan Wang, Xueyang Zheng, Yu Chen, Fanyuan Zhu, Fang Lin, Kexin Ma, Xiaoting Liang, Shu Han
{"title":"Mixed lymphocyte reaction-conditioned MSC-derived extracellular vesicles enhance graft survival via miR-638-mediated immunoregulation.","authors":"Yue Ding, Jiyuan Wang, Xueyang Zheng, Yu Chen, Fanyuan Zhu, Fang Lin, Kexin Ma, Xiaoting Liang, Shu Han","doi":"10.1093/stcltm/szaf009","DOIUrl":"https://doi.org/10.1093/stcltm/szaf009","url":null,"abstract":"<p><strong>Background: </strong>Mesenchymal stem cells (MSCs) require priming by proinflammatory stimuli for optimal immunosuppressive effects. Our previous work identified mixed lymphocyte reaction-conditioned medium (MLR-CdM) as a potent enhancer of MSC immunosuppressive properties. This study evaluates the immunomodulatory potential of MSC-derived extracellular vesicles preconditioned with MLR-CdM (MSC-EVMLR) compared to IFN-γ (MSC-EVIFN), focusing on key miRNAs and mechanisms involved.</p><p><strong>Methods: </strong>We assessed the ability of MSC-EVMLR and MSC-EVIFN to modulate lymphocyte proliferation and cytokine expression in vitro. To identify potential effector molecules within MSC-EVMLR, we performed miRNA array analysis combined with dose-response experiments using MLR-CdM under varying stimulation conditions. We used a murine allogeneic heterotopic heart transplantation model to investigate the impact of MSC-EVMLR on graft survival and its immunomodulatory effects.</p><p><strong>Results: </strong>MSC-EVMLR outperformed MSC-EVIFN in suppressing lymphocyte proliferation and steering cytokine expression toward an anti-inflammatory profile in vitro. Through miRNA array analysis and dose-response experiments with MLR-CdM, miR-638 was identified as a potential effector molecule in MSC-EVMLR. In vivo study demonstrated that MSC-EVMLR significantly prolonged graft survival, which was associated with a marked decreased proinflammatory cytokines IL6 and IFN-γ and increase in regulatory T cells (Tregs) and within the transplanted heart tissue. These effect was significantly reduced upon miR-638 knockdown. Additionally, the miR-638/Fosb axis was identified as a key pathway that promoted Treg differentiation and induced immune tolerance.</p><p><strong>Conclusions: </strong>Preconditioning MSCs with MLR-CdM, a blend of inflammatory stimuli, potentiates the immunoregulatory capacity of MSC-EV beyond the effects of IFN-γ stimulation alone. This study advances the understanding of MSC-EV-based therapies in transplantation.</p>","PeriodicalId":21986,"journal":{"name":"Stem Cells Translational Medicine","volume":"14 4","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12012893/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144012676","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
hUC-MSCs loaded collagen scaffold for refractory thin endometrium caused by Asherman syndrome: a double-blind randomized controlled trial. hUC-MSCs负载胶原支架治疗Asherman综合征引起的难治性薄内膜:一项双盲随机对照试验。
IF 5.4 2区 医学
Stem Cells Translational Medicine Pub Date : 2025-04-22 DOI: 10.1093/stcltm/szaf011
Zhaojuan Hou, Tianli Yang, Dabao Xu, Jing Fu, Hongying Tang, Jing Zhao, Qiong Zhang, Jingjing Chen, Qun Qin, Waixing Li, Haixu Chen, Hui Li, Lei Guo, Bin Xu, Yanping Li
{"title":"hUC-MSCs loaded collagen scaffold for refractory thin endometrium caused by Asherman syndrome: a double-blind randomized controlled trial.","authors":"Zhaojuan Hou, Tianli Yang, Dabao Xu, Jing Fu, Hongying Tang, Jing Zhao, Qiong Zhang, Jingjing Chen, Qun Qin, Waixing Li, Haixu Chen, Hui Li, Lei Guo, Bin Xu, Yanping Li","doi":"10.1093/stcltm/szaf011","DOIUrl":"https://doi.org/10.1093/stcltm/szaf011","url":null,"abstract":"<p><p>In this single-center, double-blinded, randomized controlled trial, we investigated whether human umbilical cord-derived mesenchymal stromal cells loaded collagen scaffolds (hUC-MSC/CS) could improve the cumulative live-birth rate (cLBR) in infertile women with refractory thin endometrium (RTE). We randomly assigned 25 subfertile women with RTE, in a 1:1 ratio, to receive hysteroscopic adhesiolysis and plowing plus either hUC-MSC/CS or saline/CS (control) for intrauterine implantation. Uterine fluid was collected on the embryo transfer day for RNA-sequencing to explore the potential mechanisms by which hUC-MSCs exert their effects. The primary outcome was the cLBR. Live births occurred in 3 out of 11 women in the hUC-MSC/CS group and in 1 out of 13 women in the control group (27.3% vs 7.7%; relative risk [RR], 3.55; 95% confidence interval [CI], 0.43 to 29.42; P = .30). The cumulative frequencies of clinical pregnancy were 5/11 and 1/13 in the hUC-MSC/CS group and control group, respectively (45.5% vs. 7.7%; RR, 5.91; 95% CI, 0.81-43.28; P = .06). Two of 11 participants developed urticaria in the hUC-MSC/CS group. Enrichment analysis showed that T-cell activation had the largest proportion in the biological process category. Kyoto Encyclopedia of Genes and Genomes pathway analysis showed that most genes were related to cytokine-cytokine receptor interaction. In conclusion, there was a non-significant trend toward a higher cLBR with hUC-MSC/CS compared to controls, potentially through the cytokine-cytokine receptor interaction pathway. hUC-MSCs appeared to be relatively safe in a 1-year follow-up. Therefore, this novel therapy can be proposed to patients with RTE.</p>","PeriodicalId":21986,"journal":{"name":"Stem Cells Translational Medicine","volume":"14 4","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12079654/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144080593","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
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