Results 11 to 20 of about 21,024 (161)

[Single-cell analysis of immune-lineage features in T-cell large granular lymphocytic leukemia]. [PDF]

open access: yesZhonghua Xue Ye Xue Za Zhi
目的 单细胞转录组层面解析T细胞大颗粒淋巴细胞白血病(T-LGLL)免疫谱系变化,探索其致病机制。 方法 收集2019年6月至2020年12月中国医学科学院血液病医院收治的5例T-LGLL患者治疗前后及3名健康志愿者外周血,应用10×Genomics技术进行单细胞转录组建库测序,比较患者与健康志愿者的免疫细胞差异基因并进行通路富集。 结果 通过对67 237个免疫细胞分析,发现T-LGLL患者疾病状态下:①效应CD8+ T细胞数量增多、细胞毒性及增殖能力增强,免疫抑制治疗有效后效应CD8 ...
Huang K   +11 more
europepmc   +2 more sources

[Advances in the application strategies of CRISPR/Cas9 technology in chimeric antigen receptor T cell therapy for hematological malignancies]. [PDF]

open access: yesZhonghua Xue Ye Xue Za Zhi
嵌合抗原受体T细胞(CAR-T细胞)疗法在复发难治性B细胞恶性肿瘤治疗中取得了突破性进展,但仍面临制备复杂、适应证局限、细胞耗竭及疗效不持久等挑战。CRISPR/Cas9作为一种高效、相对简单的基因编辑技术,为突破这些瓶颈提供了新的可能。本文简述CRISPR/Cas9的工作机制,重点探讨其在开发通用型CAR-T细胞、增强T细胞功能及拓展CAR-T细胞至T系和髓系白血病治疗中的最新应用与临床实践。此外,本文聚焦近两年用于提高CRISPR/Cas9系统的编辑精准性、递送效率和安全性的优化策略,以期为CAR ...
Wang YW, Tang YM.
europepmc   +2 more sources

[A highly sensitive approach for the analysis of tyrosine phosphoproteome in primary T cells]. [PDF]

open access: yesSe Pu
酪氨酸磷酸化在T细胞的信号转导过程中发挥着重要的作用,然而其丰度较低,鉴定困难。生物组织样本中分离获得的原代T细胞数量较少,培养和扩增的难度较大,因而常使用永生化细胞系来研究T细胞的酪氨酸磷酸化介导的信号转导过程,这通常会导致获得与原代T细胞相差较大的结论。因此,本研究发展了一种解析原代T细胞酪氨酸磷酸化修饰信号的高灵敏度的蛋白质组学方法。首先,针对原代T细胞数量有限的问题,本研究优化了一套从小鼠脾脏中分离、活化和扩增T细胞的完整流程,第4天时T细胞数量扩增到7倍以上;其次,针对酪氨酸磷酸化修饰丰度较低、
Liang FC, Ke M, Tian RJ.
europepmc   +2 more sources

Advances on T cell immunity in bone remodeling and bone regeneration. [PDF]

open access: yesZhejiang Da Xue Xue Bao Yi Xue Ban
骨重建和骨再生对于保持骨骼完整性和维持矿物质稳态至关重要。T淋巴细胞为适应性免疫的关键成员,通过产生一系列细胞因子和生长因子,在骨重建和骨再生过程中起着举足轻重的作用。在生理状态下,T淋巴细胞通过与间充质干细胞、成骨细胞、破骨细胞的交互作用参与骨稳态的维持;在病理状态下,T淋巴细胞通过与雌激素、糖皮质激素、甲状旁腺激素的协作参与不同类型骨质疏松的病理过程;在损伤后修复的骨折愈合过程中,T淋巴细胞在炎症血肿期、骨痂形成期和骨重建期发挥了不同的作用。因此,靶向T淋巴细胞成为调节骨稳态的潜在策略 ...
Hu W, Deng J, Su Z, Wang H, Lin S.
europepmc   +2 more sources

[TIM3+CD8+ T Cell Expression and Clinical Significance in the Central and Non-central Tumor Microenvironment of Non-small Cell Lung Cancer]. [PDF]

open access: yesZhongguo Fei Ai Za Zhi
背景与目的 免疫检查点抑制剂已成为非小细胞肺癌(non-small cell lung cancer, NSCLC)治疗的重要手段,但仍有部分患者未能从中获益,揭示参与免疫治疗的关键CD8+ T细胞亚群,并建立可靠的生物标志物至关重要。本研究旨在分析TIM3+CD8+ T细胞在NSCLC组织微环境中不同区域的表达,并探讨其作为新的生物标志物的价值。 方法 收集NSCLC患者肿瘤组织样本,根据活检方式分为肿瘤中心和肿瘤非中心区域,利用流式细胞术分析TIM3+CD8 ...
Wu J   +6 more
europepmc   +2 more sources

[Chinese consensus for the bispecific T cell engager in the treatment of acute lymphoblastic leukemia (2024)]. [PDF]

open access: yesZhonghua Xue Ye Xue Za Zhi
急性淋巴细胞白血病(acute lymphoblastic leukemia, ALL)是最常见的急性白血病之一,发病急、进展快,化疗和移植的规范化应用已极大改善患者预后,但仍存在未满足的治疗需求。近年以双特异性T细胞衔接器(Bispecific T cell Engager,BiTE)为代表的免疫治疗发展迅速,为ALL治疗提供了更多选择,同时也对临床诊疗管理提出了更高的要求。专家组基于国内外最新循证医学证据、相关指南和临床实践,对2022年版《双特异性T细胞衔接器治疗急性淋巴细胞白血病指导原则 ...
Union for China Leukemia of Chinese Society of Clinical Oncology   +5 more
europepmc   +2 more sources

Lipid Nanoparticles Delivering ClpP‐mRNA Suppress Pyroptosis and Senescence in Intervertebral Disc Degeneration via mTOR/BNIP3‐Activated Mitophagy

open access: yesRare Metals, EarlyView.
ABSTRACT Intervertebral disc degeneration (IDD) is a predominant cause of low back pain, significantly impacting quality of life. Mitochondrial fitness is essential in the progression of IDD, as it regulates cellular senescence and pyroptosis. This study investigates the role of mitochondrial caseinolytic protease P (ClpP) in alleviating senescence and
Kun Wang   +7 more
wiley   +1 more source

[Construction of CD138-targeted chimeric antigen receptor- modified T cells and their effect in multiple myeloma therapy]. [PDF]

open access: yesZhonghua Xue Ye Xue Za Zhi
目的 构建一种新型靶向CD138的嵌合抗原受体T(CAR-T)细胞,探索其抗恶性浆细胞肿瘤作用。 方法 通过单克隆抗体制备及筛选技术,获得能稳定分泌CD138抗体的杂交瘤细胞株;将杂交瘤细胞接种至小鼠腹腔,收集腹水并纯化得到抗CD138抗体纯品,进一步检测抗体特异性及亲和力;RT-PCR扩增其可变区序列,以此作为抗原识别域构建CD138 CAR,并表达于T细胞表面,制备CD138 CAR-T;流式细胞术检测CAR-T细胞表型特征;体外杀伤及脱颗粒实验检测其抗肿瘤作用。 结果 ...
Guo CC   +8 more
europepmc   +2 more sources

NIR‐Responsive Nano‐Integrated Magnesium Phosphate Cement Promotes Bone Regeneration via Osteoblast‐Exosome‐Osteoclast Crosstalk

open access: yesRare Metals, EarlyView.
ABSTRACT The limited osteogenic capacity of magnesium phosphate cement (MPC) has constrained its biomedical applications, underscoring the necessity to develop MPC with enhanced physical properties and bone‐forming capabilities. In this study, a multifunctional MPC system was developed by incorporating zoledronic acid‐loaded near‐infrared (NIR ...
Bin Wang   +8 more
wiley   +1 more source

Cu‐Enhanced Medium‐Entropy TiZrCoCrMo Alloys: Balancing Superior Antibacterial and Osteogenic Properties for Orthopedic Implants

open access: yesRare Metals, EarlyView.
ABSTRACT This study introduces novel nonequiatomic TiZrCoCrMoCux (x = 0, 5, 10; at%) medium‐entropy alloys (MEAx) tailored for orthopedic implants, synergistically combining the biocompatibility of Ti‐based alloys, the wear resistance of CoCrMo alloys, and the antibacterial/osteogenic attributes of Cu. The alloy's microstructure, mechanical properties,
Hang Yu   +9 more
wiley   +1 more source

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