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2024年6月3日,沈琳教授团队在国际权威学术期刊《自然-医学》(Nature Medicine)在线发表题为“Claudin18.2-specific CAR T cells in gastrointestinal cancers: phase 1 trial final results”研究成果,并由第一作者齐长松教授同步在2024年美国临床肿瘤学会(ASCO)进行大会口头报告。该研究全面报道...
科研人员提出CAR-T细胞抗肿瘤免疫治疗新策略
免疫疗法 恶性血液肿瘤 T细胞 中国科学报
2023/6/1
癌症是严重威胁人类健康和生命的主要疾病之一,每年有数百万患者死于癌症。免疫疗法是以激活和增强免疫系统来杀伤肿瘤,已成为癌症治疗的一个重要研究方向。尤其是以嵌合抗原受体T(CAR-T)细胞为代表的免疫疗法在治疗恶性血液肿瘤方面取得了巨大成功,但由于严酷的肿瘤生理障碍和免疫抑制微环境严重抑制了CAR-T细胞的浸润与功能活性。
Science亮点 | 利用LNP技术在体制造的瞬时CAR T如何修补“受伤的心脏”?(图)
心脏 T细胞 纤维细胞 活化蛋白
2022/12/20
纤维化影响着数以百万计的心脏病患者,但目前抗纤维化疗法旨在限制纤维化进展,而并非在形成初始就对其进行重塑。为此,已有研究报道特异性消除活化成纤维细胞的嵌合抗原受体 (chimeric antigen receptor, CAR) T细胞可以作为心力衰竭的治疗方法【1】,但问题就在于CAR T细胞在体内的持久生命力。成纤维细胞活化是许多组织中正常伤口愈合过程的一部分,而持久的抗纤维化CAR T 细胞...
徐建青、张晓燕教授团队《Journal for ImmunoTherapy of Cancer》报道一种全新的、肿瘤微环境激活杀伤的CAR-T,有潜力成为不同实体瘤有效治疗手段(图)
张晓燕教授 生物医学研究院 实体瘤 CAR-T疗法
2023/4/14
近年来,CAR-T疗法治疗血液源性肿瘤效果显著,然而在针对实体瘤的临床研究中却遭遇重大挑战。目前CAR-T均为靶点激活杀伤,而肿瘤靶点通常也在正常组织低表达,进而产生“on-target, off-tumor”现象、诱生炎症因子风暴、中枢神经毒性等,给CAR-T治疗带来严重的安全隐患。肿瘤细胞的异质性进一步导致靶点激活杀伤有效性受到挑战。即目前的靶点激活杀伤的CAR-T技术在在治疗实体瘤中,安全性...
CAR-T细胞治疗实体瘤中靶点选择的研究进展
实体肿瘤 嵌合抗原受体修饰T细胞 靶点
2020/8/27
嵌合抗原受体修饰T 细胞(CAR-T)治疗是一种通过基因编辑表达跨膜嵌合抗原受体并重新导向T细胞特异性的基因治疗方法。近年来不断累积的临床数据证实了CAR-T细胞在血液系统肿瘤治疗中的安全性与有效性。实体肿瘤的生物学特性更为复杂,高肿瘤异质性等特点使CAR-T细胞的靶点选择充满挑战。研究者们正在不断探索实体肿瘤恶性表型所必需的合适靶点、寻找最佳抗原组合和治疗方案,目前已有一些实体肿瘤靶点在临床试验...
复发、难治性B细胞淋巴瘤患者常规治疗方案难以奏效,研究新的治疗技术和改善预后迫在眉睫。近年来,嵌合抗原受体T细胞(chimeric antigen receptor T-cell,CAR-T)技术在B细胞淋巴瘤治疗中的突破,为复发、难治性B细胞淋巴瘤患者带来了新的希望。探讨在CAR-T技术治疗B细胞淋巴瘤的过程中,细胞因子释放综合征(cytokine release syndrome,CRS)和神...
CAR-T细胞治疗多发性骨髓瘤的研究进展
CAR-T细胞疗法 多发性骨髓瘤 嵌合抗原受体 不良反应
2020/8/7
多发性骨髓瘤(MM)是一种源于骨髓浆细胞的恶性肿瘤,截止目前尚无有效的治愈手段。嵌合抗原受体(CAR)-T细胞疗法是一种具有广阔研究前景的MM治疗方法。其设计理念是通过对部分基因序列进行特异性的改造,使CAR特异性地影响靶向肿瘤细胞的抗原,受体与抗原相结合以激活T细胞杀死肿瘤细胞。本文主要阐述CAR-T细胞疗法的设计过程、研究进展及现阶段所面临的缺陷。
CAR-T细胞治疗结直肠癌的研究进展
CAR修饰的T细胞 结直肠癌 免疫治疗
2020/7/29
近年来,结直肠癌的发病率、死亡率呈现逐年增长的趋势,严重威胁人类的健康。除了少部分早期发现的结直肠癌可以通过手术切除治疗外,大多数尚缺乏有效的治疗手段。CAR修饰的T细胞疗法(chimeric antigen receptor engineered T cells,CAR-T)作为免疫疗法的一种新模式,无疑成为最令人期待的治疗方法之一。目前,已有多个针对结直肠癌的临床试验正在进行,本文将对CAR-...
PePTCAP: A Privacy-enhancing Protocol for(Temporary) Car Access Provision
practical efficiency time estimations
2017/2/20
This paper proposes a novel physical keyless car sharing protocol that allows users to share their cars conveniently. In spite of many advantages, keyless car sharing systems come with substantial sec...
TOWARDS THE INFLUENCE OF A CAR WINDSHIELD ON DEPTH CALCULATION WITH A STEREO CAMERA SYSTEM
Stereo camera depth calculation camera calibration bundle adjustment statistical test
2016/11/11
Stereo camera systems in cars are often used to estimate the distance of other road users from the car. This information is important to improve road safety. Such camera systems are typically mounted ...
DETERMINATION OF STEERING WHEEL ANGLES DURING CAR ALIGNMENT BY IMAGE ANALYSIS METHODS
Image analysis image matching quality assessment industrial application
2016/11/11
Optical systems for automatic visual inspections are of increasing importance in the field of automation in the industrial domain. A new application is the determination of steering wheel angles durin...
ROAD NETWORK GENERALIZATION BASED ON FLOAT CAR TRACKING
Road network Dynamic attributes Mapping,Gathering Topology
2016/11/8
Road generalization is not only helpful to simplify complicated road networks but can also satisfy the needs of reasonable display of roads under varying scales, thus offering basis for updating and g...
Emission load of car service interiors
indoor environment gaseous emissions chemical factor emission limits noise
2016/9/2
Car service centres are specific in terms of production of pollutants. The aim of the paper is to assess the quality of indoor environment of car service interiors with respect to the safe range of ox...
Traffic Monitoring without Single Car Detection from Optical Airborne Images
Traffic monitoring airborne optical remote sensing data image series image understanding traffic classification traffic parameter extraction
2016/1/25
This article describes several methods for traffic monitoring from airborne optical remote sensing data. These methods classify the
traffic into free flowing traffic, traffic congestion and traffic ...
MOVING OBJECTS TRAJECTOTY PREDICTION BASED ON ARTIFICIAL NEURAL NETWORK APPROXIMATOR BY CONSIDERING INSTANTANEOUS REACTION TIME, CASE STUDY: CAR FOLLOWING
Moving Object Trajectory Artificial Neural Network Reaction Time Mean Square Error Index of Agreement Microscopic Simulation
2016/1/18
Car following models as well-known moving objects trajectory problems have been used for more than half a century in all traffic simulation software for describing driving behaviour in traffic flows. ...