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Disruption of PABPN1 phase separation by SNRPD2 drives colorectal cancer cell proliferation and migration through promoting alternative polyadenylation of CTNNBIP1

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Science China(Life Sciences) 2024年第6期67卷 1212-1225页

作者： Zhijie Hu Mengxia Li Yufeng Chen Liutao Chen Yuting Han Chengyong Chen Xin Lu nan you Yawen Lou Yingye Huang Zhanfeng Huo Chao Liu Cheng Liang Susu Liu Ke Deng Liangfu Chen Shangwu Chen Guohui Wan Xiaojian Wu Yonggui Fu Anlong Xu State Key Laboratory of Biocontrol Guangdong Province Key Laboratory of Pharmaceutical Functional GenesDepartment of BiochemistrySchool of Life SciencesSun Yat-sen UniversityGuangzhou 510275China Department of General Surgery(Colorectal Surgery)&Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases&Biomedical Innovation Center The Sixth Affiliated HospitalSun Yat-sen UniversityGuangzhou 510655China National-Local Joint Engineering Laboratory of Druggability and New Drug Evaluation National Engineering Research Center for New Drug and Druggability(cultivation)Guangdong Province Key Laboratory of New Drug Design and EvaluationSchool of Pharmaceutical SciencesSun Yat-sen UniversityGuangzhou 510006China School of Life Sciences Beijing University of Chinese MedicineBeijing 100029China

Generally shortened 3′UTR due to alternative polyadenylation(APA)is widely observed in cancer,but its regulation mechanisms for cancer are not well ***,with profiling of APA in colorectal cancer tissues and poly(A)signal editing,we firstly identified that the shortened 3′UTR of CTNNIBP1 in colorectal cancer promotes cell proliferation and *** found that liquid-liquid phase separation(LLPS)of PABPN1 is reduced albeit with higher expression in cancer,and the reduction of LLPS leads to the shortened 3′UTR of CTNNBIP1and promotes cell proliferation and ***,the splicing factor SNRPD2 upregulated in colorectal cancer,can interact with glutamic-proline(EP)domain of PABPN1,and then disrupt LLPS of PABPN1,which attenuates the repression effect of PABPN1 on the proximal poly(A)*** results firstly reveal a new regulation mechanism of APA by disruption of LLPS of PABPN1,suggesting that regulation of APA by interfering LLPS of 3′end processing factor may have the potential as a new way for the treatment of cancer.

关键词： alternative polyadenylation colorectal cancer CTNNBIP1 PABPN1 liquid-liquid phase separation SNRPD2

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发射绿色荧光的钆氮掺杂碳点/水滑石纳米复合材料对潜在指纹的识别

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光谱学与光谱分析 2024年第5期44卷 1301-1306页

作者：张幸福张晓彤李大武尤楠丁保宏辽宁石油与化工大学石油化工学院辽宁抚顺113002 中国刑事警察学院刑事科学技术学院辽宁沈阳110035

碳点(CDs)是一种绿色纳米荧光剂,CDs分散在水溶液中,能够呈现出良好的荧光性能。由于聚集诱导而引发荧光猝灭效应,导致固态的CDs粉末的荧光消失,这一缺陷限制了CDs的实用性。一方面通过在CDs中掺杂其他元素的方式来改变CDs的荧光发射波... 详细信息

碳点(CDs)是一种绿色纳米荧光剂,CDs分散在水溶液中,能够呈现出良好的荧光性能。由于聚集诱导而引发荧光猝灭效应,导致固态的CDs粉末的荧光消失,这一缺陷限制了CDs的实用性。一方面通过在CDs中掺杂其他元素的方式来改变CDs的荧光发射波长和荧光颜色,提高潜在指纹(LFPs)与基材背景间的对比度;另一方面将CDs分散在低值的水滑石表面,阻止CDs的聚集,从而避免了荧光猝灭现象的产生。以酒石酸为碳源、三乙烯四胺为氮源和GdCl_(3),采用水热法先制备钆氮掺杂CDs(Gd/N-CDs),然后再将Gd/N-CDs沉积在水滑石(Gd/N-CDs@H)表面上,制备出了发射绿色荧光的纳米复合材料,并用于LFPs的成像和识别。从表征结果可知,纳米级Gd/N-CDs在水滑石表面的良好分散克服了Gd/N-CDs在固态状态下的荧光猝灭,得到了固态光致发光荧光纳米复合材料。在450 nm光的激发下,Gd/N-CD@H能发射稳定、强烈的绿色荧光,并且在各种基底(如玻璃片、铜箔、瓷砖、塑料、铝箔和纸张)呈现出清晰的LFPs图像。基于Gd/N-CDs@H,新鲜和老化LFPs图案的高级别细节都可以清晰地识别出来,并且具有良好的清晰度和高对比度,无明显的背景干扰。

关键词：荧光潜在指纹水滑石碳点纳米复合材料

穿刺正染ICG荧光导航腹腔镜解剖性肝Ⅶ段切除术1例报告(附视频)

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中国普通外科杂志 2024年第7期33卷 1043-1050页

作者：王峥尤楠贺永刚艾麦提·牙森郑璐中国人民解放军陆军军医大学第二附属医院肝胆外科重庆400037

背景与目的:腹腔镜解剖性肝切除术已成为肝后叶Ⅶ段(S7)占位性病变的主要手术方式。然而,受限于S7肝蒂复杂解剖结构,在肝表面可有缺血线,而在肝实质内缺乏有效引导。鉴于此,笔者团队采用吲哚菁绿(ICG)荧光穿刺正染技术实施腹腔镜解剖性... 详细信息

背景与目的:腹腔镜解剖性肝切除术已成为肝后叶Ⅶ段(S7)占位性病变的主要手术方式。然而,受限于S7肝蒂复杂解剖结构,在肝表面可有缺血线,而在肝实质内缺乏有效引导。鉴于此,笔者团队采用吲哚菁绿(ICG)荧光穿刺正染技术实施腹腔镜解剖性肝S7切除术。本文对此做一汇报。方法:回顾性分析中国人民解放军陆军军医大学第二附属医院肝胆外科采用ICG荧光穿刺正染技术行腹腔镜解剖性肝S7切除术的1例患者临床资料。结果:按照术前三维重建模拟成功获得肝S7 ICG荧光染色区域后采取足侧入路方式行解剖性肝S7切除,术中循荧光边界及右肝静脉断肝,过程中先后离断S7门静脉(P7)及右肝静脉S7各属支。患者术后恢复良好,术后1个月复查腹部超声见肝S7已切除,未见肿瘤复发征象。结论:ICG荧光穿刺正染技术对腹腔镜解剖性肝S7切除术起到良好的辅助指引作用,可提高手术安全性和保证肿瘤R0切缘。

关键词：肝切除术腹腔镜吲

Bleeding control during complex laparoscopic surgeries of the spleen:current status and challenges

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Chinese Medical Journal 2022年第24期135卷 2938-2940页

作者： nan you Jing Li Lu Zheng Department of Hepatobiliary Surgery The Second Affiliated HospitalThird Military Medical University(Army Medical University)Chongqing 400037China

Severe intra-operative bleeding has limited the application of complex laparoscopic splenectomy(LS),including laparoscopic total splenectomy(LTS)and laparoscopic partial splenectomy(LPS).Therefore,reducing bleeding ri... 详细信息

关键词： laparoscopic spleen bleeding

腹腔镜下中下段胆管癌根治术中联合肝动脉切除重建的疗效与安全性:附3例报告(附视频)

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中国普通外科杂志 2024年第2期33卷 210-218页

作者：杨凤霞贺永刚张英尤楠唐艺宸李靖郑璐黄小兵中国人民解放军陆军军医大学第二附属医院肝胆外科重庆400037

背景与目的:中下段胆管癌临床上主要以下段胆管癌多见,下段胆管癌一般采用胰十二指肠切除术,中段胆管癌可以采用胰十二指肠切除术或胆管癌根治、胆肠吻合术。中下段胆管癌因胆管紧邻肝动脉和门静脉,因此更容易发生门静脉侵犯,因肝动脉... 详细信息

背景与目的:中下段胆管癌临床上主要以下段胆管癌多见,下段胆管癌一般采用胰十二指肠切除术,中段胆管癌可以采用胰十二指肠切除术或胆管癌根治、胆肠吻合术。中下段胆管癌因胆管紧邻肝动脉和门静脉,因此更容易发生门静脉侵犯,因肝动脉有动脉外鞘,因此肝动脉受侵犯相对较少,但一旦侵犯,因为涉及肝动脉切除吻合重建,具有较高技术难度,常需联合肝动脉切除重建才能实现R0切除。目前肝动脉切除重建在临床逐渐成熟,但腹腔镜下完成肝动脉切除重建经验缺乏,需要进一步积累。因此,本研究对3例完成腹腔镜下联合肝动脉切除重建的胆管癌患者的临床资料进行回顾性分析并评估短期结果,以期为临床实践提供初步经验。方法:回顾性分析2021年11月—2022年11月中国人民解放军陆军军医大学第二附属医院肝胆外科的3例行联合肝动脉切除重建的中下段胆管癌根治术患者的临床资料。结果:3例患者中女性1例,男性2例,年龄分别为61、65、69岁;病例1为胆管中段癌,因肿瘤侵犯右肝动脉和门静脉,且胆管下端切缘阴性,行联合右肝动脉切除重建、门静脉切除重建、胆管癌切除、胆肠吻合术、肝门部胆管整形术、淋巴结清扫术;病例2为胆管下段癌,因肿瘤侵犯替代右肝动脉和门静脉,行联合替代肝动脉切除重建、门静脉切除重建、腹腔镜胰十二指肠切除术(LPD);病例3为胆管下段癌,因肿瘤侵犯胃十二指肠动脉和肝动脉分叉处,行腹腔镜下联合肝动脉切除重建、LPD。术后病例2出现B级胰瘘伴腹腔感染,经治疗12 d后好转拔管出院,病例1、病例3均恢复良好,无胰瘘、胆汁漏发生,复查肝动脉血供良好,3例患者均无30 d内非计划再入院。术后随访可见,病例2术后13个月复查肿瘤标志物升高复发,病例1,病例3复查1年均未见肿瘤复发。结论:中下段胆管癌若同时合并门静脉、肝动脉侵犯时,在行门静脉切除重建时,可以同时行肝动脉/替代右肝切除重建,以提高胆管癌切除率,且安全可行和有效。

关键词：胆管肿瘤腹腔镜肝动脉肿瘤浸润

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原位肝移植术后肺部并发症的诊疗进展

中华肺部疾病杂志（电子版） 2024年第2期17卷 329-331页

作者：杨凤霞张英尤楠王霞黄小兵冯欢陆军(第三)军医大学第二附属医院肝胆外科重庆400037 陆军(第三)军医大学第二附属医院呼吸科重庆400037 陆军(第三)军医大学第二附属医院护理处重庆400037

原位肝移植(orthotopic liver transplantation,OLT)是急性肝功能衰竭的重要治疗手段之一,也是治疗终末期肝病的有效手段。随着器官捐献事业的持续推进,肝移植手术技术的成熟,也带来了一些严重的问题。常引起术后并发症,较严重的包括肺... 详细信息

原位肝移植(orthotopic liver transplantation,OLT)是急性肝功能衰竭的重要治疗手段之一,也是治疗终末期肝病的有效手段。随着器官捐献事业的持续推进,肝移植手术技术的成熟,也带来了一些严重的问题。常引起术后并发症,较严重的包括肺部并发症(postoperative pulmonary complications,PPC).

关键词：肝移植术后肺部并发症预防诊疗进展

西黄胶囊联合DP方案治疗中晚期非小细胞肺癌的疗效观察

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微循环学杂志 2024年第2期34卷 36-40页

作者：王有南沈明群马军郭红娟华北医疗健康集团峰峰总医院肿瘤科邯郸056200 河北省沧州南大港医院呼吸内科沧州061000 河北省石家庄市藁城人民医院急诊科石家庄052160

目的:分析西黄胶囊联合多西他赛+顺铂(DP)方案同步放化疗对中晚期非小细胞肺癌(NSCLC)患者客观缓解率及循环肿瘤细胞(CTCs)水平的影响。方法:选取从2019-06-2022-06本院收治的中晚期NSCLC患者156例,按治疗方法的不同分为对照组(DP化疗)... 详细信息

目的:分析西黄胶囊联合多西他赛+顺铂(DP)方案同步放化疗对中晚期非小细胞肺癌(NSCLC)患者客观缓解率及循环肿瘤细胞(CTCs)水平的影响。方法:选取从2019-06-2022-06本院收治的中晚期NSCLC患者156例,按治疗方法的不同分为对照组(DP化疗)和观察组(西黄胶囊联合DP化疗),每组78例。对比两组患者客观缓解率(ORP)、生存质量评分及CTCs水平。结果:治疗后观察组患者ORR高于对照组(P0.05)。结论:对中晚期NSCLC患者采用西黄胶囊联合DP化疗方案同步治疗效果显著,值得推广应用。

关键词：西黄胶囊多西他赛化疗中晚期非小细胞肺癌客观缓解率循环肿瘤细胞水平

Capacity Market Mechanism Design,Considering Network Optimization and Energy Transition

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CSEE Journal of Power and Energy Systems 2024年第4期10卷 1676-1687页

作者： nan Shang Yihang Song Xiang Zhang you Lin China Southern Power Grid Co. Ltd.Guangzhou 510663China Southern Methodist University Junkins 3086251 Airline Road DallasTX 75205US

The coordination of enrgy transition,fixed cost recovery,and sufficient generation supply leads to a new challenge for a traditional capacity market ***,in order to better match network expansion at the same time,it is crucial to redesign the capacity market mechanism considering system *** this paper,a novel capacity market mechanism is proposed considering spot market operations,network expansion,and energy transition,which can minimize the total cost of capacity investment,network expansion,and generation operations,while satisfying the energy transition constraints and topology ***,the capacity market mechanism co-ordinated with spot market operations is illustrated,in which the energy transition and network constraints are ***,a bi-level optimization model is established where the trade organizers minimize the total cost of both investment and operations,subject to the spot power market simultaneously minimizing the local dispatching *** numerical results of a test system show that more economical capacity portfolios can be obtained by constructing reasonable transmission lines,thereby obtaining a more optimal market cost.A detailed multi-scenario simulation is further analyzed to verify the effectiveness of the proposed market mechanism.

关键词： Capacity market energy transition network expansion spot market operation

Single thiolate replacement of metal nanoclusters

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Science China Chemistry 2024年第2期67卷 523-528页

作者： Ambreen Ambreen Yue Zhou Wanmiao Gu Qing you Liang Fang Guoqing Bian nan Yan nan Xia Zhikun Wu Key Laboratory of Materials Physics Anhui Key Laboratory of Nanomaterials and NanotechnologyInstitute of Solid State PhysicsHefei Institutes of Physical Science(HFIPS)Chinese Academy of SciencesHefei230031China University of Science and Technology of China Hefei230601China Institute of Physical Science and Information Technology Anhui UniversityHefei230601China

Surface thiolates play important roles in evincing the structures and properties of thiolated metal nanoclusters—one type of recently emerging inorganic-organic hybrids,and thus the thiolate substitution,especially single thiolate substitution,is highly desirable for subtly tailoring the structures and properties of metal ***,such a single-thiolate substituting is challenging,and its influence on the metal-metal and metal-sulfur bonds remains mysterious due to the absence of the singlethiolate-substituted ***,we developed a combined method,concurrently synthesized the single-thiolate-substituted nanocluster and its parent nanocluster,and successfully resolved their structures by single crystal X-ray crystallography,which reveals that the single thiolate substitute has an obvious influence on the metal-metal and metal-sulfur bond lengths although it has no effect on the absorption ***,the metal-metal and metal-sulfur bonds show various thermal extensibility and even the negative thermal expansion phenomena of the Au–S bond were observed in the single-thiolate-substituted *** bond length-related stability was also ***,this study highlights a novel synthesis method and offers novel structural insights and an in-depth structure-property correlation of thiolated metal nanoclusters.

关键词： metal nanoclusters single thiolate replacement thermal expansion stability intercluster interaction