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Inducing mitochondriopathy-like damages by transformable nucleopeptide nanoparticles for targeted therapy of bladder cancer

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National Science Review 2024年第4期11卷 216-227页

作者： Da-Yong hou Ni-yuan Zhang Lu Wang Mei-Yu Lv Xiang-Peng Li Peng Zhang Yue-Ze Wang Lei Shen Xiu-Hai Wu Bo Fu Peng-Yu Guo Zi-Qi Wang Dong-Bing Cheng Hao Wang Wanhai Xu NHC and CAMS Key Laboratory of Molecular Probe and Targeted Theranostics Heilongjiang Key Laboratory of Scientific Research in Urology Harbin Medical University Department of Urology Harbin Medical University Cancer Hospital CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety CAS Center for Excellence in NanoscienceNational Center for Nanoscience and Technology(NCNST) School of Chemistry Chemical Engineering & Life Science Hubei Key Laboratory of Nanomedicine for Neurodegenerative Diseases Wuhan University of Technology

Mitochondriopathy inspired adenosine triphosphate(ATP) depletions have been recognized as a powerful way for controlling tumor growth. Nevertheless, selective sequestration or exhaustion of ATP under complex biological environments remains a prodigious challenge. Harnessing the advantages of in vivo self-assembled nanomaterials, we designed an Intracellular ATP Sequestration(IAS) system to specifically construct nanofibrous nanostructures on the surface of tumor nuclei with exposed ATP binding sites,leading to highly efficient suppression of bladder cancer by induction of mitochondriopathy-like ***, the reported transformable nucleopeptide(NLS-FF-T) self-assembled into nuclear-targeted nanoparticles with ATP binding sites encapsulated inside under aqueous conditions. By interaction with KPNA2, the NLS-FF-T transformed into a nanofibrous-based ATP trapper on the surface of tumor nuclei,which prevented the production of intracellular energy. As a result, multiple bladder tumor cell lines(T24,EJ and RT-112) revealed that the half-maximal inhibitory concentration(IC50) of NLS-FF-T was reduced by approximately 4-fold when compared to NLS-T. Following intravenous administration, NLS-FF-T was found to be dose-dependently accumulated at the tumor site of T24 xenograft mice. More significantly, this IAS system exhibited an extremely antitumor efficacy according to the deterioration of T24 tumors and simultaneously prolonged the overall survival of T24 orthotopic xenograft mice. Together, our findings clearly demonstrated the therapeutic advantages of intracellular ATP sequestration-induced mitochondriopathy-like damages, which provides a potential treatment strategy for malignancies.

关键词： self-assembly nucleopeptide nanomaterial bladder cancer mitochondriopathy

Research status and hotspots of tight junctions and colorectal cancer:A bibliometric and visualization analysis

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World Journal of Gastrointestinal Oncology 2024年第8期16卷 3705-3715页

作者： Hui-Min Li Yin Liu Meng-Di Hao Xiao-qing Liang Da-Jin yuan Wen-Bin Huang Wen-Jie Li Lei Ding Department of Gastrointestinal Oncology Surgery Beijing Shijitan HospitalCapital Medical UniversityBeijing 100038China

BACKGROUND Colorectal cancer(CRC)is the third most common cancer worldwide and the second leading cause of cancer-related *** the past two decades,numerous researchers have provided important evidence regarding the role of tight junction(TJ)proteins in the occurrence and progression of *** causal relationship between the presence of specific TJ proteins and the development of CRC has also been *** the large number of publications in this field,a bibliometric study to review the current state of research and highlight the research trends and hotspots in this field has not yet been *** To analyze research on TJs and CRC,summarize the field’s history and current status,and predict future research *** We searched the Science Citation Index Expanded database for all literature on CRC and TJs from *** used bibliometrics to analyze the data of these papers,such as the authors,countries,institutions,and ***-authorship,co-citation,and co-occurrence analyses were the main methods of *** and VOSviewer were used to visualize the *** A total of 205 studies were ultimately *** number of publications on this topic has steadily increased since *** and the United States have made the largest contributions to this *** Research was the most prolific journal,publishing 8 articles,while the journal Oncogene had the highest average citation rate(68.33).Professor Dhawan P was the most prolific and cited author in this ***-occurrence analysis of keywords revealed that“tight junction protein expression”,“colorectal cancer”,“intestinal microbiota”,and“inflammatory bowel disease”had the highest frequency of occurrence,revealing the research hotspots and trends in this *** This bibliometric analysis evaluated the scope and trends of TJ proteins in CRC,providing valuable research perspectives and future directions for studying the connection between th

关键词： Colorectal cancer Tight junctions Bibliometric analysis Research trends Hot spots

Perturbation to Symmetries and Adiabatic Invariants for Generalized Birkhoffian Systems on Time Scales

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Wuhan University Journal of Natural Sciences 2024年第3期29卷 263-272页

作者： hou Shuang SONG Chuanjing School of Mathematical Sciences Suzhou University of Science and TechnologySuzhou 215009JiangsuChina

Time scale is a new and powerful tool for dealing with complex dynamics problems. The main result of this study is the exact invariants and adiabatic invariants of the generalized Birkhoffian system and the constrained Birkhoffian system on time scales. Firstly, we establish the differential equations of motion for the above two systems and give the corresponding Noether symmetries and exact invariants. Then, the perturbation to the Noether symmetries and the adiabatic invariants for the systems mentioned above under the action of slight disturbance are investigated, respectively. Finally, two examples are provided to show the practicality of the findings.

关键词： time scale generalized Birkhoffian system Noether symmetry perturbation and adiabatic invariants

Ancient DNA unravels species identification from Laosicheng site,Hunan Province,China,and provides insights into maternal genetic history of East Asian leopards

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Zoological Research 2024年第1期45卷 226-229页

作者： Ming Zhang Cai-Hui Wang Yu-Xin Zheng Qi-Gao Jiangzuo Ye-Mao hou Peng Cao qing-Yan Dai Ruo-Wei Yang Feng Liu Xiao-Tian Feng Lin-Heng Mo Qiao-Mei Fu China-Central Asia"the Belt and Road"Joint Laboratory on Human and Environment Research Key Laboratory of Cultural Heritage Research and ConservationSchool of Culture HeritageNorthwest UniversityXi’anShaanxi 710127China Shanghai Qi Zhi Institute Shanghai 200232China College of Life Sciences Northwest UniversityXi’anShaanxi 710127China Key Laboratory of Vertebrate Evolution and Human Origins Institute of Vertebrate Paleontology and PaleoanthropologyCenter for Excellence in Life and PaleoenvironmentChinese Academy of SciencesBeijing 100044China Cultural Relics and Archaeology Institute of Hunan ChangshaHunan 410083China University of the Chinese Academy of Sciences Beijing 100049China

DEAR EDITOR,The Laosicheng site in Yongshun County,Hunan Province,China,plays an important role in elucidating the animal population composition of the region prior to the middle qing Dynasty(approximately 300 years ago).This site has yielded a substantial number of animal bones,11960 of which have been identified to the species level,serving as direct evidence of ancient animal populations(Hunan Provincial Institute of Cultural Relics and Archaeology,2018).

关键词： Hunan Ancient insight

Self-consistent and precise measurement of time-dependent radiative albedo of gold based on specially symmetrical triple-cavity Hohlraum

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Matter and Radiation at Extremes 2024年第3期9卷 57-64页

作者： Zhiyu Zhang Yang Zhao Xiaoying Han Liling Li Bo qing Lifei hou Yulong Li YuXue Zhang Huan Zhang Xiangming Liu Bo Deng Gang Xiong Min Lv Tuo Zhu Chengwu Huang Tianming Song Yan Zhao Yingjie Li Lu Zhang Xufei Xie Jiyan Zhang Jiamin Yang Laser Fusion Research Center China Academy of Engineering PhysicsMianyang 621900China National Key Laboratory of Plasma Physcis Mianyang 621900China Institute of Applied Physics and Computational Mathematics Beijing 100088China

A self-consistent and precise method to determine the time-dependent radiative albedo,i.e.,the ratio of the reemission flux to the incident flux,for an indirect-drive inertial confinement fusion Hohlraum wall material is proposed.A specially designed symmetrical triple-cavity gold Hohlraum is used to create approximately constant and near-equilibrium uniform radiation with a peak temperature of 160 *** incident flux at the secondary cavity waist is obtained from flux balance analysis and from the shock velocity of a standard *** results agree well owing to the symmetrical radiation in the secondary cavity.A self-consistent and precise time-dependent radiative albedo is deduced from the reliable reemission flux and the incident flux,and the result from the shock velocity is found to have a smaller uncertainty than that from the multi-angle flux balance analysis,and also to agree well with the result of a simulation using the HYADES opacity.

关键词： precise cavity radiative

晚清来华西人对塾师的多维书写与形象建构研究

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安徽史学 2024年第4期 32-40页

作者：陈艳元青南开大学历史学院天津300350

晚清时期,来华西人出于政治考量、文化输出、传教需求等多种因素,对中国塾师群体给予了广泛的关注与书写,以满足对华认知的整体诉求,进而建构了塾师多维的“他塑形象”。19世纪早期至60年代以前是描述性介绍为主的早期阶段,主要关注塾... 详细信息

晚清时期,来华西人出于政治考量、文化输出、传教需求等多种因素,对中国塾师群体给予了广泛的关注与书写,以满足对华认知的整体诉求,进而建构了塾师多维的“他塑形象”。19世纪早期至60年代以前是描述性介绍为主的早期阶段,主要关注塾师的经济状况、教学教法,是为获取对华认知信息服务,而主观性的文化价值判断色彩较弱;19世纪60年代至20世纪初,则对塾师进行了全方位观察与多维度书写,以文化价值判断为主导,运用特异化手法,建构了塾师“一体多面”的形象,呈现出塾师“专业素养不甚高明”的职业形象、“贫寒”的经济形象、“特异化”的外貌形象、“无知、疏懒、严厉”的人格形象。在塾师“一体多面”的形象之下,隐含了西方中心主义价值取向。而解构中国传统教育,最终以现实为指向则是晚清来华西人塑造塾师形象的重要文化动机。晚清来华西人主要通过倾向性地择取“写实”要素,运用特异化手法和构建微型教学展示空间,对塾师进行形象建构。作为异域文化的观察者,来华西人的塾师书写虽然存在歪曲和想像,却在一定程度上为观察中国传统教育提供了多维视角,促使国人从“他者”视域反思中国本土教育问题。

关键词：来华西人塾师形象建构一体多面

Synthesis and Characterization of β-Cyclodextrin Modified Biochar Environmental Remediation Materials

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Journal of Materials Science and Chemical Engineering 2024年第4期12卷 42-52页

作者： qing Guo Xiao Wang Wanke Chen Xiaoyan Wang Jing yuan Qianfeng Zhang Institute of Molecular Engineering and Applied Chemistry Anhui University of Technology Ma&#8217anshan China Department of Civil Engineering Tongling University Tongling China Department of Civil Engineering Manitoba University Winnipeg Canada

In this paper, biochar (BC) was used as raw material, activated by deionizing aqueous solution, NaCl solution, CA solution and HCl solution respectively. Epichlorohydrin (EPI) was used as crosslinking agent, and β-cyclodextrin (β-CD) was used to modify biochar (BC). The prepared modified biochar materials were labeled with β-CDBC, β-CDBC-Na, β-CDBC-CA and β-CDBC-H, respectively. The infrared spectrum, X-ray diffractometer, scanning electron microscope and specific surface area of the four modified materials were tested. The results showed that the C-O stretching vibration peak at 1020 cm−1 of the modified materials was slightly offset compared with that of biochar. The characteristic absorption peaks of XRD pattern decrease obviously at 2θ = 26.7˚ and 29.5˚. It can be obviously observed on the electron microscope image that the surface is loaded or formed clathrates, and BET data and graphs also show that the specific surface area of the modified biochar is larger. Therefore, β-cyclodextrin successfully modified biochar and formed clathrates on the surface of biochar or was loaded in the pore structure of biochar, especially β-CDBC-CA achieved better modification effect. Because biochar and β-cyclodextrin raw materials are cheap, easy to prepare and green, and less prone to secondary pollution, it has a good advantage in environmental governance.

关键词： Biochar Β-Cyclodextrin Modification Clathrate Green Environmental Protection

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Ⅱ型亚历山大病一例

中国现代神经疾病杂志 2024年第6期24卷 502-506页

作者：袁于青占青青谢亮南昌大学第二附属医院神经内科、江西省神经系统肿瘤及脑血管疾病重点实验室、江西省神经医学重点实验室、南昌大学神经科学研究所 330006

先证者男性,50岁。因右下肢无力6个月,加重伴左下肢无力2个月,于2021年5月10日至我院就诊。2020年11月无明显诱因出现右下肢无力,尚可行走和上下楼梯,行走百米后需稍作休息,易疲劳,偶有饮水呛咳,无肢体麻木,无头痛头晕,无恶心不适,未予... 详细信息

先证者男性,50岁。因右下肢无力6个月,加重伴左下肢无力2个月,于2021年5月10日至我院就诊。2020年11月无明显诱因出现右下肢无力,尚可行走和上下楼梯,行走百米后需稍作休息,易疲劳,偶有饮水呛咳,无肢体麻木,无头痛头晕,无恶心不适,未予重视。2021年3月右下肢无力感加重,行走费力,有拖曳感,逐渐出现左下肢无力,双手持笔不稳,2021年3月27日至外院就诊,头部MRI显示延髓萎缩、纤细(图1a),考虑“脊髓损伤”可能,未予药物治疗。2021年5月上述症状加重,并伴有头晕、共济失调、言语不清,为求进一步诊治至我院神经内科就诊,门诊以“多系统萎缩?炎性脱髓鞘性病变(待排)”收入院。先证者自发病以来,食欲尚可,日间精神尚可;睡眠较差,主要表现为睡眠维持困难和易醒,一般10~20 min可入睡,但睡眠维持困难,夜间因小便间断觉醒3~4次,醒后难以入睡,持续10余年;便秘7~8年,且呈进行性加重;自发病以来体重下降约10 kg。

关键词： Alexander病神经胶质原纤维酸性蛋白质基因突变延髓萎缩磁共振波谱学病例报告

Biomimetic natural biomaterials for tissue engineering and regenerative medicine:new biosynthesis methods,recent advances,and emerging applications

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Military Medical Research 2024年第1期11卷 50-79页

作者： Shuai Liu Jiang-Ming Yu Yan-Chang Gan Xiao-Zhong Qiu Zhe-Chen Gao Huan Wang Shi-Xuan Chen yuan Xiong Guo-Hui Liu Si-En Lin Alec McCarthy Johnson V.John Dai-Xu Wei Hong-Hao hou Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering the Fifth Affiliated HospitalSchool of Basic Medical ScienceSouthern Medical UniversityGuangzhou 510900China Department of Orthopedics Tongren HospitalShanghai Jiao Tong UniversityShanghai 200336China The Eighth Affiliated Hospital Sun Yat-Sen UniversityShenzhen 518033GuangdongChina Engineering Research Center of Clinical Functional Materials and Diagnosis&Treatment Devices of Zhejiang Province Wenzhou InstituteUniversity of Chinese Academy of SciencesWenzhou 325011ZhejiangChina Department of Orthopedics Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430022China Department of Orthopaedics and Traumatology Faculty of Medicinethe Chinese University of Hong KongHong Kong SAR 999077China Department of Functional Materials Terasaki Institute for Biomedical InnovationLos AngelesCA 90064USA Mary&Dick Holland Regenerative Medicine Program College of MedicineUniversity of Nebraska Medical CenterOmahaNE 68130USA Zigong Affiliated Hospital of Southwest Medical University Zigong Psychiatric Research CenterZigong Institute of Brain ScienceZigong 643002SichuanChina Key Laboratory of Resource Biology and Biotechnology in Western China Ministry of EducationSchool of MedicineDepartment of Life Sciences and MedicineNorthwest UniversityXi’an 710127China

Biomimetic materials have emerged as attractive and competitive alternatives for tissue engineering(TE)and regenerative *** contrast to conventional biomaterials or synthetic materials,biomimetic scaffolds based on natural biomaterial can offer cells a broad spectrum of biochemical and biophysical cues that mimic the in vivo extracellular matrix(ECM).Additionally,such materials have mechanical adaptability,micro-structure interconnectivity,and inherent bioactivity,making them ideal for the design of living implants for specific applications in TE and regenerative *** paper provides an overview for recent progress of biomimetic natural biomaterials(BNBMs),including advances in their preparation,functionality,potential applications and future *** highlight recent advances in the fabrication of BNBMs and outline general strategies for functionalizing and tailoring the BNBMs with various biological and physicochemical characteristics of native ***,we offer an overview of recent key advances in the functionalization and applications of versatile BNBMs for TE ***,we conclude by offering our perspective on open challenges and future developments in this rapidly-evolving field.

关键词： Biomimic Scaffold Biosynthesis Natural biomaterial Tissue engineering