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中国MET异常非小细胞肺癌临床诊疗现状调研

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循证医学 2024年第2期24卷 97-106页

作者：甘彬刘思阳严红虹吴一龙广东省肺癌研究所南方医科大学附属广东省人民医院(广东省医学科学院)广州510080 暨南大学附属第一医院血液科广州510630

目的非小细胞肺癌(non-small cell lung cancer,NSCLC)中间充质上皮转化因子(mesenchymal epithelial transition factor,MET)异常主要包括MET基因第14号外显子(MET exon 14)跳跃突变(简称METex14跳突)、MET基因扩增及MET蛋白过表达等。METex14跳突是NSCLC的原发致癌驱动变异,在NSCLC患者中的发生率约为0.9%~4%,目前国内外已有多个针对METex14跳突的靶向药物获批上市。NSCLC中原发MET基因扩增发生率约为1%~5%,与不良预后相关。MET基因扩增更常继发于其他驱动基因阳性NSCLC患者靶向治疗后,是表皮生长因子受体酪氨酸激酶抑制剂(epidermal growth factor receptor-tyrosine kinase inhibitor,EGFR-TKI)耐药的重要机制之一。本调研旨在了解国内MET异常NSCLC患者的诊疗现状、受访医师对MET抑制剂的认知、对于MET异常NSCLC患者治疗决策的考量,同时探求临床实践中未被满足的需求。方法限定时间内诊治过MET异常的医师通过在线问卷形式参与调研,并对结果进行汇总和描述性分析。结果调研共回收140份有效问卷。对于METex14跳突NSCLC,无论初治还是经治,超过50%的受访医师首选MET-TKI单药治疗。≥3级不良事件发生率是最为关注的安全性指标,最关注的不良反应有肺炎、肝毒性和胃肠道不良反应等,对于MET-TKI导致的外周水肿关注度不高。对于EGFR-TKI耐药后MET扩增NSCLC,受访医师首选MET-TKI和EGFR-TKI双靶联合的治疗方案。大型随机对照研究更充分证据、检测有待规范和临床共识是EGFR-TKI耐药后MET扩增NSCLC主要的未被满足的需求。结论MET-TKI在METex14跳突NSCLC的首选比例仍有待提升,对于METTKI导致的外周水肿的关注度需提高以帮助更科学地进行管理。针对不同类型的MET变异的检测还需进一步标准化和规范化。

关键词：非小细胞肺癌 METex14跳跃突变 MET基因扩增现状调研

Investigations of the mechanical response of dummy HTPB propellant grain under ultrahigh acceleration overload conditions using onboard flight-test measurements

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Defence Technology（防务技术） 2024年第2期32卷 473-484页

作者： yiming Zhang Ningfei Wang Weihua Ma Ran Wang long Bai yi wu School of Aerospace Engineering Beijing Institute of TechnologyBeijing 100081China Beijing System Design Institute of Electro-mechanic Engineering Beijing 100854China Xi'an Changfeng Research Institute of Mechanism and Electricity Xi'an 710065China

In this paper,to study the mechanical responses of a solid propellant subjected to ultrahigh acceleration overload during the gun-launch process,specifically designed projectile flight tests with an onboard measurement system were *** projectiles containing dummy HTPB propellant grains were successfully recovered after the flight tests with an ultrahigh acceleration overload value of 8100 *** onboard-measured time-resolved axial displacement,contact stress and overload values were successfully obtained and *** compression tests of the dummy HTPB propellant used in the gunlaunched tests were carried out at low and intermediate strain rates to characterize the propellant's dynamic properties.A linear viscoelastic constitutive model was employed and applied in finite-element simulations of the projectile-launching *** the launch process,the dummy propellant grain exhibited large deformation due to the high acceleration overload,possibly leading to friction between the motor case and propellant *** calculated contact stress showed good agreement with the experimental results,though discrepancies in the overall displacement of the dummy propellant grain were *** dynamic mechanical response process of the dummy propellant grain was analysed in *** results can be used to estimate the structural integrity of the analysed dummy propellant grain during the gun-launch process.

关键词： Gun-launched flight test Dummy HTPB propellant Onboard measurements Utrahigh overload Mechanical response

Single-atom Ag-loaded carbon nitride photocatalysts for efficient degradation of acetaminophen:The role of Ag-atom and O_(2)

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Journal of Environmental Sciences 2024年第5期139卷 12-22页

作者： yi Yuan Wen-long Wang Zhi-Wei Wang Jin Wang Qian-Yuan wu Key Laboratory of Microorganism Application and Risk Control of Shenzhen Guangdong Provincial Engineering Research Center for Urban Water Recycling and Environmental SafetyInstitute of Environment and EcologyShenzhen International Graduate SchoolTsinghua UniversityShenzhen 518055China Shenzhen Environmental Science and New Energy Technology Engineering Laboratory Tsinghua-Berkeley Shenzhen InstituteShenzhen 518055China College of Materials Science and Engineering Shenzhen UniversityShenzhen 518071China

Carbon nitride has been extensively used as a visible-light photocatalyst,but it has the disadvantages of a low specific surface area,rapid electron-hole recombination,and relatively low light *** this study,single-atom Ag was successfully anchored on ultrathin carbon nitride(UTCN)via thermal polymerization,the catalyst obtained is called *** Ag hardly changed the carbon nitride's layered and porous physical *** exhibited efficient visible-light photocatalytic performances in the degradation of various recalcitrant pollutants,eliminations of 85% were achieved by visible-light irradiation for *** with Ag improved the photocatalytic performance of UTCN by narrowing the forbidden band gap from 2.49 to 2.36 e V and suppressing electron-hole pair *** addition,Ag doping facilitated O_(2) adsorption on UTCN by decreasing the adsorption energy from -0.2 to -2.22 e V and favored the formation of O_(2)^(·-).Electron spin resonance and radical-quenching experiments showed that O_(2)^(·-)was the major reactive species in the degradation of Acetaminophen(paracetamol,APAP).

关键词： Ag single atom Carbon nitride Photocatalysis Visible light Adsorption energy Reactive species

Manifestation of leukoencephalopathy in a patient with advanced non-small cell lung cancer following treatment with gefitinib

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Chinese Medical Journal 2011年第22期124卷 3834-3837页

作者： HUANG yi-sheng HUANG Biao wu yi-long Gua-ngdong-LungJcancer Institute Guangdong General Hospital and Guangdong Academy of Medical Sciences Guangzhou Guangdong 510080 China

The present case is a patient with advanced non-smaU cell lung cancer （NSCLC） who developed leukoencephalopathy following radiotherapy and gefitinib treatments. There are rarely reports of such incidences because the median survival period of advanced NSCLC is only ten months. The features of leukoencephalopathy in this case were atypical for radiation leukoencephalopathy, so it was suspected that the ieukoencephalopathy was associated with gefitinib.

关键词： gefitinib leukoencephalopathy radiosensitizing non-small cell lung cancer

Non-adiabatic holonomic quantum operations in continuous variable systems

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Science China(Physics,Mechanics & Astronomy) 2024年第6期67卷 12-19页

作者： Hao-long Zhang yi-Hao Kang Fan wu Zhen-Biao Yang Shi-Biao Zheng Fujian Key Laboratory of Quantum Information and Quantum Optics College of Physics and Information EngineeringFuzhou UniversityFuzhou 350116China

Quantum operations by utilizing the underlying geometric phases produced in physical systems are favoured due to their potential *** a system in a non-degenerate eigenstate undergoes an adiabatically cyclic evolution dominated by its Hamiltonian,it will get a geometric phase,referred to as the Berry *** a non-adiabatically cyclic evolution produces an Aharonov-Anandan geometric *** two types of Abelian geometric phases are extended to the non-Abelian cases,where the phase factors become matrix-valued and the transformations associated with different loops are *** and non-Abelian(holonomic)operations are prevalent in discrete variable systems,whose limited(say,two)energy levels,form the *** their developments in continuous systems have also been investigated,mainly due to that,bosonic modes(in,such as,cat states)with large Hilbert spaces,provide potential advantages in fault-tolerant quantum *** we propose a feasible scheme to realize non-adiabatic holonomic quantum logic operations in continuous variable systems with cat *** construct arbitrary single-qubit(two-qubit)gates with the combination of single-and two-photon drivings applied to a Kerr Parametric Oscillator(KPO)(the coupled KPOs).Our scheme relaxes the requirements of the previously proposed quantum geometric operation strategies in continuous variable systems,providing an effective way for quantum control.

关键词： cat qubit continuous variable systems non-Abelian

晚期肺腺癌瘤内趋化因子CCR1、CXCR6和CXCL9对免疫治疗的预测及预后作用分析

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循证医学 2024年第2期24卷 107-114页

作者：钟思敏张东东李扬秋吴一龙刘思阳金真伊暨南大学生命科学技术学院广州510632 暨南大学第一附属医院胸外科广州510632 暨南大学基础医学与公共卫生学院血液学研究所再生医学教育部重点实验室广州510632 暨南大学第一附属医院血液科广州510632 暨南大学基础医学与公共卫生学院病理学系广州510632 广东省肺癌研究所南方医科大学附属广东省人民医院(广东省医学科学院)广州510080

目的构建能够预测晚期肺腺癌(lung adenocarcinoma,LUAD)患者免疫检查点阻断(immune checkpoint blockade,ICB)治疗疗效与预后的趋化因子模型。方法从既往研究数据中回顾性收集确诊为晚期LUAD且经过ICB治疗的42例患者(训练队列),取得其... 详细信息

目的构建能够预测晚期肺腺癌(lung adenocarcinoma,LUAD)患者免疫检查点阻断(immune checkpoint blockade,ICB)治疗疗效与预后的趋化因子模型。方法从既往研究数据中回顾性收集确诊为晚期LUAD且经过ICB治疗的42例患者(训练队列),取得其ICB治疗前肿瘤组织转录组测序数据,通过生物信息学方法,筛选出显著影响ICB治疗疗效与患者生存预后的趋化因子,通过无进展生存期(progression-free disease,PFS)评价疗效,通过总生存期(overall survival,OS)评价患者的预后。从高通量基因表达数据库(Gene Expression Omnibus,GEO)中的数据集(GSE 135222)下载25例非小细胞肺癌(non-small cell lung cancer,NSCLC)转录组测序数据和相关的生存数据,将其作为验证队列。结果通过单因素Cox回归分析,筛选出9个与晚期LUAD患者良好OS显著相关的趋化因子,其中CCR1、CXCR6和CXCL9高表达的患者明显具有更长的OS。基于这3个趋化因子的表达量构建风险模型,生存分析结果表明风险分数与患者的PFS和OS呈负相关,即低风险(risk score≤-1.33)的晚期LUAD患者在ICB治疗中明显获益更多。低风险组中位PFS为19.7个月对比高风险组(risk score>-1.33)2.9个月[95%可信区间(confidence interval,CI)为0.12~0.51,P-1.85)为2.7个月对比1.2个月(95%CI 0.12~0.93,P=0.009)。结论CCR1、CXCR6和CXCL9高表达表明晚期LUAD患者疾病进展的风险较低,与患者良好的PFS和OS相关,可能为晚期LUAD患者的ICB辅助治疗提供新的方向。

关键词： CCR1 CXCR6 CXCL9 肺腺癌免疫检查点阻断治疗

The Functional Redundancy of Neddylation E2s and E3s in Modulating the Fitness of Regulatory T Cells

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Research 2024年第2期2023卷 373-387页

作者： Di wu yi Sun Cancer Institute(Key Laboratory of Cancer Prevention and Intervention China National Ministry of Education)of the Second Affiliated Hospital and Institute of Translational MedicineZhejiang University School of MedicineHangzhou 310029China Cancer Center of Zhejiang University Hangzhou 310029China Zhejang Provincial Clinical Research Center for Cancer Zhejang ProvinceChina Key Laboratory of Molecular Biology in Medical Sciences Zhejang ProvinceChina Research Center for Life Science and Human Health Binjiang Institute of Zhejiang UniversityHangzhou 310053China

Neddylation is necessary for activation of Cullin-RING ligases(CRLs),which degrade various immune regulatory *** recent study showed that while depletion of neddylation E2-E3 pair Ube2f-Sag in regulatory T(T_(reg))cells had no obvious phenotype,the same depletion of either Ube2m or Rbx1 caused inflammation disorders with different *** these E2s or E3s compensate each other in functional regulations of T_(reg)cells is,however,previously *** this report,we generated Foxp3^(Cre);Ube2m^(fl/fl);Ube2f^(fl/fl)or Foxp3^(Cre);Rbx1^(fl/fl);Sag^(fl/fl)double-null mice by simultaneous deletion of both neddylation E2s or E3s in T_(reg)cells,***,Ube2m&Ube2f double-null mice developed much severe autoimmune phenotypes than did Ube2m-null mice,indicating that Ube2m markedly compensates Ube2f in T_(reg)*** minor worsened autoimmune phenotypes seen at the very early stage in Rbx1&Sag double-null than Rbx1-null mice is likely due to already severe phenotypes of the later,indicating a minor compensation of Rbx1 for *** RNA profiling-based analyses revealed that up-and down-regulations of few signaling pathways in T_(reg)cells are associated with the severity of autoimmune ***,severer inflammation phenotypes seen in mice with double E3-null than with double E2-null T_(reg)cells indicate a neddylation-independent mechanism of 2 E3s,also known to serve as the RING component of CRLs in regulation of T_(reg)cell fitness.

关键词： Foxp3 inflammation markedly

Differential bonding behaviors of sodium/potassium-ion storage in sawdust waste carbon derivatives

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Chinese Chemical Letters 2024年第4期35卷 496-501页

作者： Jun-Ming Cao Kai-Yang Zhang Jia-Lin Yang Zhen-yi Gu Xing-long wu MOE Key Laboratory for UV Light-Emitting Materials and Technology Northeast Normal UniversityChangchun 130024China Department of Chemistry Northeast Normal UniversityChangchun 130024China

Sodium-ion batteries(SIBs) and potassium-ion batteries(PIBs) are the most promising alternatives to lithium-ion batteries, and thus have drawn intensive research attention. Porous carbon materials from different precursors have been widely used as anode materials owing to their compatible storage effectiveness of both larger radii sodium and potassium ions. However, the differential bonding behaviors of Na and K ions with porous carbon-based anode are the significant one worth investigating, which could provide a clean picture of alkali ions storage mechanism. Therefore, in this work, we prepare a porous carbon network derived from sawdust(SDC) wastes, to further analyze the differences on sodium and potassium ions storage behaviors in terms of bond-forming process. It is found that, as-prepared SDC anodes could deliver stable sodium and potassium storage capacities, however, there are notable distinctions in terms of electrochemical behaviors and diffusion processes. By virtue of ex-situ XRD and Raman spectroscopy, the phase transition reaction of potassium ions could be well-observed, and the results shows that the multiple intercalated compounds was formed in SDC network during ions insertion, further resulting in slower diffusion kinetics and larger resistance compared to non-bonded process of sodium ions storage. This study provides more insights into the differences between sodium and potassium ions storage, as well as the energy storage mechanism of porous carbon as anodes for secondary batteries.

关键词： Porous carbon Sodium-ion storage Potassium-ion storage Bonding behaviors Batteries

Almost Periodic Type Group Actions on Compact Quantum Metric Spaces

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Acta Mathematica Sinica,English Series 2024年第2期40卷 568-594页

作者： Bo Tao long Wei wu College of Mathematics MIIT Key Laboratory of Mathematical Modelling and High Performance Computing of Air VehiclesNanjing University of Aeronautics and AstronauticsNanjing 211106P.R.China School of Mathematical Sciences Shanghai Key Laboratory of Pure Mathematics and Mathematical PracticeEast China Normal UniversityShanghai 200241P.R.China

A compact quantum metric space is a complete order unit space A endowed with a Lipnorm *** give some characterizations of almost periodic type group actions on a compact quantum metric space(A,L)by means of several kinds of subsets of A,its induced equicontinuous actions on several important subsets of the dual Banach space A*,and the Lip-norm L with its induced metric space structures on the state space S(A)of A.

关键词： Lip-norm compact quantum metric space Lipschitz isomorphism almost periodicity Arzela-Ascoli theorem metric set