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Harnessing extracellular vesicles for stabilized and functional IL-10 delivery in macrophage immunomodulation 利用细胞外囊泡在巨噬细胞免疫调节中稳定和功能的IL-10递送
Pub Date : 2025-12-12 DOI: 10.1016/j.vesic.2025.100102
Najla A. Saleh , Matthew A. Gagea , Xheneta Vitija , Sadhana Kilangodi , Ahmed A. Zarea , Tomas Janovic , Jens C. Schmidt , Cheri X. Deng , Masamitsu Kanada
Extracellular vesicles (EVs) are gaining recognition as promising therapeutic carriers for immune modulation. We investigated the potential of EVs derived from HEK293FT cells to stabilize and deliver interleukin-10 (IL-10), a key anti-inflammatory cytokine. Using minicircle (MC) DNA vectors, we achieved IL-10 overexpression and efficient incorporation into filter-isolated small EVs (F-sEVs), resulting in superior stability compared to free recombinant IL-10. Detailed biophysical and functional analyses revealed that IL-10+ F-sEVs contain both monomeric and oligomeric IL-10 on their external surface and encapsulated within vesicles. Size-based fractionation of IL-10+ large EVs (lEVs), small EVs (UC-sEVs), and non-vesicular extracellular particles (NVEPs) revealed IL-10 presence across all fractions, predominantly in monomeric form. Anion exchange chromatography successfully enriched IL-10+ exosomes that efficiently associated with both IL-10 monomers and oligomers. IL-10+ F-sEVs suppressed inflammatory cytokine expression in pro-inflammatory macrophages (two-to 14-fold more effectively than naïve F-sEVs) without inducing anti-inflammatory repolarization. However, detailed analysis of IL-10-loaded EV subpopulations revealed that anti-inflammatory activity was distributed across multiple fractions. Moreover, naïve F-sEVs derived from non-transfected cells also exhibited anti-inflammatory effects, suggesting that endogenous EV cargo contributes to their immunomodulatory activity and complicates attribution of effects specifically to IL-10. These findings highlight the therapeutic potential of EVs while emphasizing the need to disentangle contributions of engineered cytokines from endogenous vesicular components.
细胞外囊泡(EVs)作为一种有前景的免疫调节治疗载体正得到越来越多的认可。我们研究了HEK293FT细胞衍生的ev稳定和传递白细胞介素-10 (IL-10)的潜力,IL-10是一种关键的抗炎细胞因子。利用微环(MC) DNA载体,我们实现了IL-10的过表达,并有效地整合到过滤分离的小ev (f - sev)中,与游离重组IL-10相比,具有更高的稳定性。详细的生物物理和功能分析表明,IL-10+ f - sev的外表面含有单体和寡聚体IL-10,并被包裹在囊泡内。IL-10+大ev (lEVs)、小ev (UC-sEVs)和非囊泡细胞外颗粒(NVEPs)的基于尺寸的分离显示,IL-10存在于所有馏分中,主要以单体形式存在。阴离子交换色谱成功富集了IL-10+外泌体,这些外泌体有效地与IL-10单体和低聚物结合。IL-10+ f - sev抑制促炎巨噬细胞中炎症细胞因子的表达(比naïve f - sev有效2 - 14倍),而不诱导抗炎复极化。然而,对il -10负载EV亚群的详细分析显示,抗炎活性分布在多个部分。此外,来自非转染细胞的naïve f - sev也表现出抗炎作用,这表明内源性EV货物有助于其免疫调节活性,并使其特异性归因于IL-10。这些发现突出了ev的治疗潜力,同时强调了从内源性囊泡成分中分离工程化细胞因子的必要性。
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引用次数: 0
Systematic characterization of mammalian extracellular vesicles using nano-flow cytometry 利用纳米流式细胞术系统表征哺乳动物细胞外囊泡
Pub Date : 2025-11-14 DOI: 10.1016/j.vesic.2025.100098
Benjamin T. Vyzourek , Dirk Anderson , Luke Skrabal , Christine E. Humphrey , Eduardo Romero , Brittany Schweiger , Forrest Kievit , Jeremy R. Miles , Angela K. Pannier
Extracellular vesicles (EVs) are nanoscale, membrane-enclosed particles that transport bioactive cargo between cells and are increasingly studied for their potential in diagnostic and therapeutic applications. Advancing EV-based technologies for these applications depend on the ability to consistently isolate and characterize vesicle populations with defined biophysical and molecular properties. Efforts to obtain pure EV populations from cell culture systems are limited by inherent EV heterogeneity, exogenous particle contamination introduced by media supplements, and the co-isolation of non-vesicular contaminants. These challenges are further compounded by the limitations of conventional EV characterization platforms, which often lack the resolution to distinguish EVs from similarly sized non-vesicular particles or to capture molecular heterogeneity at the single-vesicle scale. Together, these limitations highlight the need for analytical approaches capable of resolving EV heterogeneity and enabling comparisons across EV production conditions and isolation strategies. In this study, we used nano-flow cytometry (nFCM) for high-resolution analysis of individual EVs, enabling simultaneous measurement of particle size, concentration, and tetraspanin expression. This approach revealed substantial amounts of exogenous particle contamination in media supplements commonly used to culture EV-producing cells, and quantified differences in EV purity and yield between methods used to isolate EVs from the media of the producing cells. Additionally, analysis of EVs derived from HEK293T, U-87 MG, and hMSC mammalian cell cultures revealed cell type-specific differences in EV production and expression of tetraspanin markers CD9, CD63, and CD81. Collectively, these results demonstrate that careful selection of media compositions and isolation strategies, combined with nFCM analytical techniques can resolve biological differences in EV populations.
细胞外囊泡(EVs)是一种纳米级、膜封闭的颗粒,可在细胞之间运输生物活性物质,其在诊断和治疗方面的应用潜力日益受到研究。在这些应用中,基于电动汽车的技术的进步取决于持续分离和表征具有明确生物物理和分子特性的囊泡群的能力。从细胞培养系统中获得纯EV群体的努力受到EV固有异质性、培养基补充引入的外源颗粒污染以及非泡状污染物的共分离的限制。传统的电动汽车表征平台的局限性进一步加剧了这些挑战,这些平台通常缺乏分辨电动汽车与类似大小的非囊泡颗粒的分辨率,或者在单囊泡尺度上捕捉分子异质性。总之,这些限制突出了分析方法的需求,这些分析方法能够解决电动汽车的异质性,并能够在电动汽车生产条件和隔离策略之间进行比较。在这项研究中,我们使用纳米流式细胞术(nFCM)对单个ev进行高分辨率分析,可以同时测量颗粒大小、浓度和tetraspanin表达。该方法揭示了在通常用于培养产生EV细胞的培养基补充物中存在大量外源颗粒污染,并量化了从产生EV细胞的培养基中分离EV的方法之间的EV纯度和产量差异。此外,对HEK293T、U-87 MG和hMSC哺乳动物细胞培养的EV的分析显示,EV的产生和四跨蛋白标记物CD9、CD63和CD81的表达存在细胞类型特异性差异。总之,这些结果表明,精心选择培养基组成和分离策略,结合nFCM分析技术,可以解决EV群体的生物学差异。
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引用次数: 0
Proteomic profiling of tissue extracellular vesicles (EVs) identifies tissue EV markers and estimates the abundance of tissue EVs in the circulation 组织细胞外囊泡(EVs)的蛋白质组学分析识别组织EVs标记并估计循环中组织EVs的丰度
Pub Date : 2025-11-05 DOI: 10.1016/j.vesic.2025.100097
Sho Watanabe , Takumi Makino , Kahori Hiro , Takashi Sasaki , Yu Takahashi , Kei Futagawa , Michio Suzuki , Ryuichiro Sato , Yoshio Yamauchi
Extracellular vesicles (EVs) mediate cell-to-cell communication in endocrine, paracrine, and autocrine fashions, but their roles and transport in the body remain incompletely understood. It is suggested that EVs circulate in the body through the bloodstream, where EVs derived from various tissues are present. However, how much each tissue contributes to circulating EVs is largely unknown. Therefore, identifying tissue-specific EV markers is of importance for elucidating in vivo dynamics of tissue EVs. A key issue that hampers studying EVs in vivo is the lack of methodologies for collecting them from tissues. Here, we developed methods to isolate EVs from four different tissues, skeletal muscle, heart, liver, and adipose tissue, and performed proteomic analysis on their EVs. Unbiased and quantitative proteomic analysis revealed protein signatures of EVs from the four tissues and identified marker proteins specific to or highly enriched in EVs of each tissue. Furthermore, through comprehensive comparisons of the proteome from tissue and plasma EVs, we estimated the relative contribution of tissue EVs to circulating EVs. Our data suggest that adipose tissue-derived EVs are highly enriched, while skeletal muscle-derived EVs are only a minor population in circulating EVs. Collectively, our tissue EV proteome identified potential tissue EV markers and suggested that the abundance of tissue EVs in circulation highly depends on the original tissues.
细胞外囊泡(EVs)在内分泌、旁分泌和自分泌模式中介导细胞间的通讯,但它们在体内的作用和运输尚不完全清楚。这表明,ev通过血液在体内循环,其中存在来自各种组织的ev。然而,每个组织对循环ev的贡献在多大程度上是未知的。因此,鉴定组织特异性EV标记对于阐明组织EV的体内动力学具有重要意义。阻碍在体内研究ev的一个关键问题是缺乏从组织中收集ev的方法。在这里,我们开发了从骨骼肌、心脏、肝脏和脂肪组织四种不同组织中分离ev的方法,并对其ev进行了蛋白质组学分析。无偏和定量的蛋白质组学分析揭示了来自四种组织的ev的蛋白质特征,并鉴定了每种组织ev特异性或高度富集的标记蛋白。此外,通过对组织和血浆EVs蛋白质组的综合比较,我们估计了组织EVs对循环EVs的相对贡献。我们的数据表明,脂肪组织来源的ev是高度富集的,而骨骼肌来源的ev只是循环ev中的一小部分。总的来说,我们的组织EV蛋白质组鉴定了潜在的组织EV标记,并表明循环中的组织EV丰度高度依赖于原始组织。
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引用次数: 0
Therapeutic application of mesenchymal stem cell-derived extracellular vesicles in radiation injury: research status, challenges, and prospects 间充质干细胞来源的细胞外囊泡在辐射损伤治疗中的应用:研究现状、挑战与展望
Pub Date : 2025-10-13 DOI: 10.1016/j.vesic.2025.100096
Runxuan Wang, Tong An, Daqin Li, Huijuan Song, Ningning He, Qiang Liu
Radiation injury treatment represents a longstanding scientific challenge in radiotherapy research and an urgent medical problem. As the number of cancer patients in China increases, so does the number of radiotherapy recipients and the frequency of treatments. Concurrently, nuclear accidents continue to occur. Under these circumstances, public attention is increasingly focused on various types of radiation-induced bodily damage. However, the multifaceted damaging effects of radiation impede the activation of organ regeneration responses. With the deepening research on mesenchymal stem cells (MSCs) and their extracellular vesicles (EVs), accumulating evidence suggests that Mesenchymal Stem Cell-Derived Extracellular Vesicles (MSC-EVs) are ideal candidates for cell-free therapy of radiation injury. In recent years, MSC-EVs have become a hot research topic in the biomedical field, and more and more studies have proven that they are excellent nanocarriers. Although significant gaps remain in understanding the therapeutic mechanisms of MSC-EVs for radiation injury repair, current research achievements sufficiently demonstrate their application value in treating radiation damage. Therefore, this paper summarizes and discusses recent advancements to provide new insights into cell-free EV therapy for radiation injury.
放射损伤治疗是放射治疗研究中一项长期存在的科学挑战,也是一个迫切需要解决的医学问题。随着中国癌症患者数量的增加,接受放疗的人数和治疗频率也在增加。同时,核事故继续发生。在这种情况下,公众的注意力越来越集中在各种类型的辐射引起的身体损伤上。然而,辐射的多方面损害效应阻碍了器官再生反应的激活。随着对间充质干细胞(mesenchymal stem cells, MSCs)及其细胞外囊泡(extracellular vesicles, EVs)研究的不断深入,越来越多的证据表明,间充质干细胞衍生的细胞外囊泡(mesenchymal stem Cell-Derived extracellular vesicles, MSCs -EVs)是无细胞治疗辐射损伤的理想候选细胞。近年来,msc - ev已成为生物医学领域的研究热点,越来越多的研究证明其是优良的纳米载体。虽然msc - ev在辐射损伤修复中的作用机制尚不清楚,但目前的研究成果充分证明了其在辐射损伤治疗中的应用价值。因此,本文对近年来的研究进展进行了总结和讨论,以期为无细胞EV治疗辐射损伤提供新的思路。
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引用次数: 0
Encapsulating extracellular vesicles with a minimal RISC complex as novel gene silencing tool 用最小的RISC复合物包封细胞外囊泡作为新型基因沉默工具
Pub Date : 2025-09-16 DOI: 10.1016/j.vesic.2025.100094
Tao Qiu, Yu Yan, Rui Hu, Yuan Yi, Guowu Liu, Wenqiang Lu, Xin Zhou, Ke Xu
Gene silencing modalities including small interfering RNAs (siRNAs) and antisense oligonucleotides (ASOs) have prospered in both fundamental research and clinical translations in recent years, with delivery platform being one of the key elements for success. Extracellular vesicles (EVs) as natural carriers for cell-cell communication have been engineered in a variety of ways as delivery platform for gene silencing, yet facing limited efficiency and reproducibility. In this study, we developed a new strategy for engineering EVs as gene silencing tool. A minimal RNA-induced silencing complex (RISC), composing of modified Argonaute 2 (AGO2) protein and specially designed guide strand RNAs, were encapsulated into EVs and elicited prominent EGFP silencing in proof-of-concept study. This modular EVs platform, which we named as minRISC-EVs, efficiently silenced iNOS expression in M1 macrophages as well as STAT6/A20 expression in M2 macrophages, enabling macrophages polarization towards desired directions. The macrophage modulating ability was further validated in vivo, as minRISC-EVs against iNOS alleviated mice lung inflammation in lipopolysaccharide (LPS)-induced acute lung injury model, and minRISC-EVs against STAT6/A20 inhibited B16F10 tumor progression in the tumor xenograft model. In summary, minRISC-EVs can be utilized as novel gene silencing tool, and hold great promise for clinical translation in the future.
近年来,包括小干扰rna (sirna)和反义寡核苷酸(ASOs)在内的基因沉默方式在基础研究和临床应用中都得到了蓬勃发展,而传递平台是成功的关键因素之一。细胞外囊泡(Extracellular vesic泡,ev)作为细胞间通讯的天然载体,已被设计成多种方式作为基因沉默的传递平台,但其效率和可重复性有限。在这项研究中,我们开发了一种新的策略,将电动汽车作为基因沉默工具。由修饰Argonaute 2 (AGO2)蛋白和专门设计的引导链rna组成的最小rna诱导沉默复合体(RISC)被封装到ev中,并在概念验证研究中引起了显著的EGFP沉默。这种模块化的EVs平台,我们将其命名为minRISC-EVs,有效地沉默了M1巨噬细胞中iNOS的表达以及M2巨噬细胞中STAT6/A20的表达,使巨噬细胞向所需方向极化。在体内进一步验证了巨噬细胞调节能力,在脂多糖(LPS)诱导的急性肺损伤模型中,minRISC-EVs抗iNOS减轻小鼠肺部炎症,在肿瘤异种移植模型中,minRISC-EVs抗STAT6/A20抑制B16F10肿瘤进展。综上所述,minrisc - ev可以作为一种新的基因沉默工具,在未来的临床转化中具有很大的前景。
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引用次数: 0
Generation and characterization of platelet-derived extracellular vesicle analogues from lyophilized platelets 冻干血小板衍生的细胞外囊泡类似物的生成和表征
Pub Date : 2025-09-12 DOI: 10.1016/j.vesic.2025.100095
Xin Xin, Ingrid Dijkgraaf, Tilman M. Hackeng, Rory R. Koenen
Platelet-derived extracellular vesicles (P-EV) are thought to facilitate the transfer of information from platelets to target cells, playing a role in both physiologic and pathophysiologic processes, particularly in regulating immune responses and healing processes. In addition, P-EV show promise as drug carriers and biomarkers for disease. However, the procedures for isolation, purification and fluorescent labeling of P-EV remain unstandardized. Moreover, the requirement to use freshly obtained platelets for generating EV presents a logistical challenge for their study. In this study, we isolated, characterized, and compared P-EV analogues by sonication of freshly obtained and lyophilized platelets, investigated fluorescent labeling methods, and monitored cellular uptake. We found that P-EV analogues derived from fresh or lyophilized platelets showed similar characteristics regarding size, surface proteins and content. Among the fluorescent labeling methods, CFSE and DiO-C6 were most effective in labeling P-EV analogues from both fresh and lyophilized platelets. All labeling methods led to an increase in P-EV analogue's size, with CFSE and DiO-C6 resulting in the smallest increase. The addition of P-EV analogues to cultured immortal endothelial cells revealed that P-EV analogues were effectively internalized and directed to the lysosomal compartment. The results indicate that P-EV analogues from lyophilized platelets have similar functional properties as those from freshly isolated platelets and these are retained after labeling with CFSE. Thus, lyophilized platelets can serve as a source of P-EV analogues for functional studies.
血小板来源的细胞外囊泡(P-EV)被认为促进了信息从血小板到靶细胞的传递,在生理和病理生理过程中发挥作用,特别是在调节免疫反应和愈合过程中。此外,P-EV作为药物载体和疾病的生物标志物也具有广阔的应用前景。然而,P-EV的分离、纯化和荧光标记的程序仍未标准化。此外,使用新鲜获得的血小板生成EV的要求对他们的研究提出了后勤挑战。在这项研究中,我们通过对新鲜获得的和冻干的血小板进行超声分离、表征和比较P-EV类似物,研究荧光标记方法,并监测细胞摄取。我们发现从新鲜或冻干血小板中提取的P-EV类似物在大小、表面蛋白和含量方面具有相似的特征。在荧光标记方法中,CFSE和DiO-C6对新鲜和冻干血小板中P-EV类似物的标记最有效。所有标记方法都导致P-EV类似物的大小增加,其中CFSE和DiO-C6的增加最小。将P-EV类似物添加到培养的永生内皮细胞中表明,P-EV类似物被有效地内化并定向到溶酶体腔室。结果表明,冻干血小板的P-EV类似物与新鲜分离血小板的P-EV类似物具有相似的功能特性,并且在CFSE标记后保留了这些特性。因此,冻干血小板可以作为功能研究中P-EV类似物的来源。
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引用次数: 0
Neutrophil-derived extracellular vesicles in the plasma of alpha-1 antitrypsin deficient individuals reveal pro-inflammatory metabolic and transcriptomic signatures α -1抗胰蛋白酶缺乏个体血浆中中性粒细胞来源的细胞外囊泡显示促炎代谢和转录组特征
Pub Date : 2025-08-26 DOI: 10.1016/j.vesic.2025.100093
Zachary F. Greenberg , Regina Oshins , Karina Serban , Sina F. Bazargani , Timothy J. Garrett , Nancy G. Casanova , Joe GN. Garcia , Mei He , Nazli Khodayari
Alpha-1 antitrypsin deficiency (AATD) is a genetic disorder caused by mutations in SERPINA1, leading to chronic obstructive pulmonary disease (COPD) and liver disease. Neutrophils are key regulators of inflammatory signaling networks; however, their dysregulation in AATD and the underlying molecular mechanisms remain poorly understood. Here, we employed a multi-omics approach integrating RNA sequencing (RNA-seq) and metabolomics to comprehensively characterize neutrophil dysfunction in AATD. RNA-seq analysis of blood neutrophils from AATD individuals revealed transcriptional dysregulation in genes involved in intracellular signaling, immune response regulation, and metabolic adaptation. Isolation and characterization of neutrophil-derived extracellular vesicles (EV) demonstrated an increased plasma burden of neutrophil elastase (NE)-rich EV with elevated surface-bound NE. Metabolomic profiling revealed that these EVs are enriched with pro-inflammatory metabolites linked to dysregulated signaling pathways. Integrated transcriptomic and metabolomic network analysis showed that altered neutrophil gene expression and signaling pathways reshape EV metabolic cargo, linking metabolic reprogramming to inflammatory signal transduction in AATD. Furthermore, differentially expressed EV metabolites may modulate gene expression in recipient cells, sustaining chronic inflammation in AATD. The observed upregulation of interferon, pattern recognition receptors, and cytokine-mediated signaling pathways in neutrophils suggests a potential feedback loop amplifying inflammation in AATD and COPD.
α -1抗胰蛋白酶缺乏症(AATD)是一种由SERPINA1突变引起的遗传性疾病,可导致慢性阻塞性肺疾病(COPD)和肝脏疾病。中性粒细胞是炎症信号网络的关键调节因子;然而,它们在AATD中的失调及其潜在的分子机制仍然知之甚少。在这里,我们采用多组学方法整合RNA测序(RNA-seq)和代谢组学来全面表征AATD中性粒细胞功能障碍。来自AATD个体的血液中性粒细胞的RNA-seq分析显示,参与细胞内信号传导、免疫反应调节和代谢适应的基因转录失调。中性粒细胞来源的细胞外囊泡(EV)的分离和表征表明,富含中性粒细胞弹性蛋白酶(NE)的EV的血浆负荷增加,表面结合的NE升高。代谢组学分析显示,这些ev富含与信号通路失调相关的促炎代谢物。综合转录组学和代谢组学网络分析表明,中性粒细胞基因表达和信号通路的改变重塑了EV代谢货,将代谢重编程与AATD中的炎症信号转导联系起来。此外,差异表达的EV代谢物可能会调节受体细胞中的基因表达,维持AATD的慢性炎症。观察到中性粒细胞中干扰素、模式识别受体和细胞因子介导的信号通路的上调,提示AATD和COPD中可能存在放大炎症的反馈回路。
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引用次数: 0
Outer membrane vesicles as novel therapeutics for heart repair 外膜囊泡作为心脏修复的新疗法
Pub Date : 2025-08-20 DOI: 10.1016/j.vesic.2025.100092
Ming Shen , Dashuai Zhu , Tongxuan Li , Shixiong Wei , Xianyun Wang , Mingqi Zheng
Ischemic heart disease is the leading cause of global morbidity and mortality. Amending an injured heart remains a major challenge in both clinics and basic research. Cardiac regenerative medicine that utilizes stem cells for heart repair and regeneration has transitioned into extracellular vesicles. Despite advancements in extracellular vesicle treatment for heart disease, the selection of parental cells and the transplantation pattern—whether autologous or allogeneic—remains a topic of ongoing debate due to immunological and therapeutic variability. Outer membrane vesicles (OMVs) offer an alternative option due to their unique properties, including large-scale production, and highly efficient drug loading/eluting, as well as proven modulation of pathological conditions in various diseases. Additionally, engineering strategies, including surface modification, cargo encapsulation, and microbiome modulation, enhance the specificity and safety of OMVs. At the joint of microbial engineering and cardiac regenerative medicine, OMVs represent a novel platform to develop precise therapeutics for heart disease treatment. This review underscores OMVs as innovative nanotherapeutic tools, bridging microbial-host interactions and cardiovascular health, with transformative potential for patient care.
缺血性心脏病是全球发病率和死亡率的主要原因。在临床和基础研究中,修复受伤的心脏仍然是一个重大挑战。利用干细胞进行心脏修复和再生的心脏再生医学已经转变为细胞外囊泡。尽管心脏病的细胞外囊泡治疗取得了进展,但由于免疫学和治疗的可变性,亲代细胞的选择和移植模式(无论是自体的还是异体的)仍然是一个持续争论的话题。外膜囊泡(omv)由于其独特的特性提供了另一种选择,包括大规模生产,高效的药物装载/洗脱,以及已证实的各种疾病病理条件的调节。此外,工程策略,包括表面改性、货物封装和微生物组调节,提高了omv的特异性和安全性。在微生物工程和心脏再生医学的结合下,omv代表了一个开发心脏病精确治疗方法的新平台。这篇综述强调了omv作为创新的纳米治疗工具,桥接微生物-宿主相互作用和心血管健康,具有改变患者护理的潜力。
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引用次数: 0
Novel exosome-like vesicles from Dendrobium officinale: Unraveling a pioneering extraction protocol and their skin anti-aging potentials 铁皮石斛的新型外泌体样囊泡:揭示了一种开创性的提取方案及其皮肤抗衰老潜力
Pub Date : 2025-08-06 DOI: 10.1016/j.vesic.2025.100090
Ye Zhang, Bo Zhao, Jing Wang, Meiping Shen, Zeyi Zhang, Chengjie Ren, Mimi Li, Melanie Liu, Zhicheng You, Ping Li

Objective

Numerous studies suggest that exosome-like nanovesicles (EVs) derived from medicinal plants are crucial for their therapeutic and cosmetic benefits. Nevertheless, the precise role of EVs derived from Dendrobium officinale Kimura et Migo (D. officinale), a treasured traditional Chinese medicine, in promoting skin health has not been extensively studied. Thus, the objective of this study was to establish an effective isolation method to isolate these EVs and to investigate their potential anti-aging benefits for skin.

Methods

We developed a sequential filtration-based isolation process to extract D. officinale EVs (DO-EVs). We compared their physical properties and phytochemical profiles with those of EVs obtained via the standard ultracentrifugation method (UC-EVs) using Nanoparticle Tracking Analysis (NTA), Transmission Electron Microscopy (TEM), and LC-MS/MS. At the cellular level, we assessed the anti-aging efficacy of DO-EVs against UC-EVs and ethanol-extracted polysaccharides from D. officinale (EE-PS) by analyzing pro-COL1A2 levels, cytoskeletal organization, and senescence markers. We further examined DO-EVs’ anti-photodamage effects on UV-treated 3D skin models through histological and immunological staining, and elasticity measurements. Finally, we observed DO-EVs’ impact on human skin using a two-photon microscope.

Results

Both isolation methods yielded EVs of similar size and structure but distinct metabonomic profiles. DO-EVs uniquely contained compounds vital for skin health. Compared to UC-EVs and EE-PS, DO-EVs more effectively enhanced collagen I production, restored cytoskeletal structures, and reduced senescence markers in UV-exposed fibroblasts. In 3D skin models, DO-EVs significantly improved epidermal thickness and skin elasticity post-UV exposure, upregulated hyaluronic acid, collagen I & IV, integrin α6β4, plectin, laminin 5, and nidogen expression, and decreased DNA damage. Human trials confirmed DO-EVs’ effectiveness in enhancing skin structures within two weeks.

Conclusion

Our isolation method successfully extracted D. officinale EVs with superior anti-aging bioactivity compared to UC-EVs or ethanol-extracted polysaccharides. These findings suggest DO-EVs’ great potential as an anti-aging cosmetic ingredient.
目的:大量研究表明,源自药用植物的外泌体样纳米囊泡(ev)对其治疗和美容功效至关重要。然而,从珍贵的中药木村石斛中提取的ev在促进皮肤健康中的确切作用尚未得到广泛研究。因此,本研究的目的是建立一种有效的分离方法来分离这些ev,并研究它们对皮肤的潜在抗衰老作用。方法建立了一种基于序贯过滤的分离方法,提取officinale ev (do - ev)。我们使用纳米颗粒跟踪分析(NTA)、透射电子显微镜(TEM)和LC-MS/MS将其物理性质和植物化学特征与通过标准超离心方法(uc - ev)获得的ev进行了比较。在细胞水平上,我们通过分析pro-COL1A2水平、细胞骨架组织和衰老标志物,评估了do - ev对uc - ev和乙醇提取的officinale多糖(EE-PS)的抗衰老功效。我们通过组织学和免疫学染色以及弹性测量进一步研究了do - ev对紫外线处理的3D皮肤模型的抗光损伤作用。最后,我们利用双光子显微镜观察了do - ev对人体皮肤的影响。结果两种分离方法获得的ev大小和结构相似,但代谢组学特征不同。do - ev独特地含有对皮肤健康至关重要的化合物。与uc - ev和EE-PS相比,do - ev更有效地促进了uv暴露成纤维细胞的胶原I生成,恢复了细胞骨架结构,并减少了衰老标志物。在3D皮肤模型中,do - ev显著改善了紫外线暴露后的表皮厚度和皮肤弹性,上调了透明质酸、胶原蛋白I和amp;IV,整合素α6β4、粘连素、层粘连蛋白5和氮原的表达,并降低DNA损伤。人体试验在两周内证实了do - ev在改善皮肤结构方面的有效性。结论与uc - ev和乙醇提取多糖相比,我们的分离方法成功地提取了具有较强抗衰老活性的officinale ev。这些发现表明,do - ev作为一种抗衰老化妆品成分具有巨大的潜力。
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引用次数: 0
Erratum to “Head-to-head comparison of extracellular vesicles from different cell sources for cardiac repair” [Extracell Vesicle 5 (2025) 100068] “不同细胞来源的细胞外囊泡对心脏修复的正面比较”的勘误[细胞外囊泡5 (2025)100068]
Pub Date : 2025-07-31 DOI: 10.1016/j.vesic.2025.100091
Kaiyue Zhang, Ke Cheng
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引用次数: 0
期刊
Extracellular vesicle
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