Results 31 to 40 of about 7,099 (167)

Injectable Biomimetic Composite Hydrogel Scaffold With Tissue‐Engineered Cartilage Matrix for Articular Cartilage Regeneration

open access: yesRare Metals, Volume 45, Issue 1, January 2026.
ABSTRACT Articular cartilage regeneration remains a significant challenge because of its limited intrinsic healing capacity and the inadequacy of conventional treatments for restoring structural and functional integrity. In this study, a novel injectable composite hydrogel scaffold was designed to mimic the extracellular matrix (ECM) of native ...
Zhong‐Lian Wu   +13 more
wiley   +1 more source

MRI表观弥散系数预测肝细胞癌肿瘤免疫细胞浸润

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 2021
目的探索MRI弥散加权成像(DWI)的表观弥散系数(ADC)评估肝细胞癌(HCC)免疫细胞浸润的可行性。方法纳入初治HCC患者24例,所有患者均于术前行MRI DWI检查。收集患者术后1 h内新鲜组织块,分别取瘤内、瘤旁2 cm内组织块。采用多色流式细胞分析术获得组织内炎性细胞、T细胞、B细胞、CD4+ T细胞、CD8+ T细胞以及CD8+PD1+ T细胞、调节性T细胞、巨噬细胞比率。在MRI ADC图上测量肿瘤ADC值、瘤旁肝组织ADC值(pADC),计算肿瘤比瘤旁组织相对ADC值(rADC ...
黄梦琪   +4 more
doaj  

Recombinant IL-33 prolongs leflunomide-mediated graft survival through reducing Th1-type cytokine IFN-γ and expanding CD4+Foxp3+ regulatory T cells (Treg) in concordant heart transplantation [PDF]

open access: yes, 2015
摘要 背景 白细胞介素33是一种非典型的IL-1家族成员。IL-33的给药与Th2型(Th2细胞)的应答促进相关联,其通过促进Th2细胞的活性和Th类型2相关的细胞因子,在体内,特别是以IL-4和IL-5的增殖为代表。最近,在同种异体心脏移植,IL-33显示出其能增加小鼠体内的CD4+Foxp3+调节性T细胞(Treg细胞),并抑制Th1型相关细胞因子IFN-γ的水平。我们采用小鼠到大鼠协调性异种移植模型,我们推测,IL-33和来氟米特可以延长移植物的存活。在这个模型中 ...
代辰
core  

Endogenous/Exogenous Dual‐Responsive Bimetallic Hollow Nanozyme for Photothermal/Nanocatalysis/Immune Synergistic Tumor Therapy

open access: yesRare Metals, Volume 45, Issue 1, January 2026.
ABSTRACT Nanozymes have attracted considerable attention in cancer therapy due to their adjustable enzyme activity and high catalytic efficiency. However, they still face a major challenge from tumor metastasis. In this work, endogenous/exogenous dual‐responsive bimetallic hollow PdRu (termed HPdRu) nanozymes were prepared.
Nan‐Nan Zheng, Xin Hu, Jun‐Qing Hu
wiley   +1 more source

B cell lymphoma:Characterization of the microenvironment and the tumor cell proteome [PDF]

open access: yes, 2016
B cell lymphoma is the most common hematologic malignancy. Besides alterations in the malignant lymphoma cells, also the interaction with the microenvironment has gained much interest in recent years.
Wu, Rui
core   +2 more sources

Studies on the immunoregulation and anti-tumor activity of polysaccharide from Arnebia root(紫草多糖的免疫调节和肿瘤抑制活性研究)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2008
为研究紫草多糖在体外对小鼠脾淋巴细胞的免疫调节活性及对肿瘤细胞的细胞毒作用,本实验采用水提醇沉法,经脱蛋白、脱色、透析等方法提取紫草多糖,MTT法检测紫草多糖对淋巴细胞增殖及对HepG2、SPC-A-1肿瘤细胞的杀伤作用.实验结果显示:当质量浓度在121~364 µg • mL-1时,紫草多糖能显著的促进ConA刺激的T淋巴细胞增殖 ...
CHENXiang-na(陈祥娜)   +1 more
doaj   +1 more source

The effection of everolimus on hamster-to-rat concordant heart xenotransplantation [PDF]

open access: yes, 2016
背景:器官移植是解决很多终末期疾病最有效的手段,然而器官短缺限制着器官移植术的推广。异种移植是最有可能快速解决器官短缺问题的途径之一。虽然异种移植的超级性排斥反应已经因分子生物学技术的应用而极大减轻,但异种移植的急性排斥反应、延迟性排斥反应等仍旧没有克服。新型免疫抑制剂的开发可能有助于克服这些类型的免疫排斥反应。依维莫司是雷帕霉素衍生物,是一种可用于抗移植排斥的免疫抑制药物,动物实验和临床资料表明它可延长同种器官移植物生存期。依维莫司对免疫系统具有多种调节作用 ...
付嘉钊
core  

Lithology modulates soil priming effect via resource limitations and bacterial community structure

open access: yesFunctional Ecology, Volume 40, Issue 1, Page 176-190, January 2026.
Read the free Plain Language Summary for this article on the Journal blog. Abstract The soil priming effect (PE), triggered by root exudate inputs that stimulates microbial activity and drives significant soil carbon (C) losses in terrestrial ecosystems.
Xinyu Hou   +4 more
wiley   +1 more source

铁死亡调控肝细胞癌及其肿瘤免疫研究进展

open access: yes浙江大学学报. 医学版
铁死亡是一种依赖铁代谢失衡并以脂质过氧化为特征的调控性细胞死亡形式,在多种病理过程中发挥关键作用。研究表明,铁死亡的发生与肝细胞癌(HCC)的进展密切相关。铁死亡参与调控HCC的脂质代谢、铁离子稳态、线粒体代谢和氧化还原过程,在HCC肿瘤免疫中发挥着关键作用。铁死亡通过调节免疫微环境中不同细胞的表型和功能影响肿瘤的免疫逃逸和进展;铁死亡诱导的脂质过氧化物和氧化应激能促进M1型巨噬细胞的极化,增强肿瘤的促炎反应,同时抑制髓源性抑制细胞和调节性T细胞等免疫抑制细胞的功能,从而破坏免疫抑制 ...
莫 宇倩, 邹 志霖, 陈 二宝
doaj   +1 more source

Mechanistic Analysis of Immunomodulation by Human Induced Pluripotent Stem Cells Derived Mesenchymal Stem Cells in Mice [PDF]

open access: yes, 2015
背景:间充质干细胞是具有自我更新能力和分化能力的组织细胞前体细胞,能够分化为一系列的间质细胞,包括成骨细胞、成软骨细胞、脂肪细胞、肌细胞和内皮细胞等。细胞治疗是再生医学发展的一个重要分支。越来越多的研究发现,间充质干细胞能够修复组织损伤,达到一定治疗效果。因此,间充质干细胞被视为天然组织工程材料的重要种子细胞,具有广阔的应用前景。此外,间充质干细胞具有负性免疫调节能力。在体外共培养条件下,间充质干细胞能够抑制免疫细胞功能,包括抑制T细胞反应,抑制树突状细胞的成熟和抗原提成,抑制B细胞激活和增殖 ...
李成林
core  

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