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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

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：肝切除术腹腔镜吲哚花青绿

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

Electroantennogram and behavioral responses of Cotesia plutellae to plant volatiles

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Insect Science 2016年第2期23卷 245-252页

作者： Guang Yang you-nan Zhang Geoff M. Gurr Liette Vasseur Min-Sheng you Institute of Applied Ecology Fujian Agriculture and Forestry University Fuzhou China Fujian-Taiwan Joint Centre for Ecological Control of Crop Pests Fujian Agriculture and Forestry University Fuzhou China Key Laboratory of Integrated Pest Management of Fujian and Taiwan China Ministry Agriculture Fuzhou Chin provincial Key Laboratory of Insect Ecology Fuzhou China Putian Institute of Agricultural Sciences Putian China Graham Centre Charles Sturt University & NSW Department of Primary Industries Orange New South Wales Australia Department of Biological Sciences Brock University 500 Glenridge Avenue St. Catharines Ontario Canada

Plant volatiles have been demonstrated to play an important role in regulat- ing the behavior of Cotesia plutellae, a major larval parasitoid of the diamondback moth （DBM）, Plutella xylostella, but little is currently known about the function of each volatile and their mixtures. We selected 13 volatiles of the DBM host plant, a cruciferous veg- etable, to study the electroantennogram （EAG） and behavioral responses of C. plutellae. EAG responses to each of the compounds generally increased with concentration. Strong EAG responses were to 100 μL/mL of trans-2-hexenal, benzaldehyde, nonanal and cis-3- hexenol, and 10/zL/mL of trans-2-hexenal and benzaldehyde with the strongest response provoked by trans-2-hexenal at 100μL/mL. In the Y-tube olfactometer, C. plutellae, was significantly attracted by 1μL/mL of trans-2-hexenal and benzaldehyde.β-caryophyllene, cis-3-hexenol or trans-2-hexenal significantly attracted C. plutellae at 10μL/mL, while nonanal, benzyl alcohol, cis-3-hexenol or benzyl cyanide at 100μL/mL significantly at- tracted C. plutellae. Trans-2-hexenal significantly repelled C. plutellae at 100 μL/mL. EAG of C. plutellae showed strong responses to all mixtures made of five various com- pounds with mixtures 3 （trans-2-hexenal, benzaldehyde, nonanal, cis-3-hexenol, benzyl cyanide, farnesene, eucalyptol） and 4 （trans-2-hexenal, benzaldehyde, benzyl alcohol, （R）- （＋）-limonene,β-ionone, farnesene, eucalyptol） significantly attracting C. plutellae. These findings demonstrate that the behavior of C. plutellae can be affected either by individual compounds or mixtures of plant volatiles, suggesting a potential of using plant volatiles to improve the efficiency of this parasitoid for biocontrol ofP. xylostella.

关键词： behavioral response Cotesia plutellae electroantennogram response herbivore-induced plant volatile

Characterization of Growth and Light Utilization for Rice Genotypes with Different Tiller Angles

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Agricultural Sciences in China 2011年第11期10卷 1701-1709页

作者： OUYANG you-nan ZENG Fan-rong ZHAN Ling ZHANG Guo-ping Department of Agronomy College of Agriculture and Bioteehnology Zhejiang University Hangzhou 310029 P.R.China State Key Laboratory for Rice Biology China National Rice Research institute Hangzhou 310006 P.R. China College of Life and Environment Sciences Hangzhou Normal University Hangzhou 310000 P.R.China

Tiller angle is very important for plant architecture and canopy structure in rice （Oryza sativa L.）. Physiological and ecological characteristics of three rice genotypes with different tiller angle habits were compared in the paper. DI508, a genotype with changing tiller angle during the growth, has semi-erect tillers at early tillering stage, similar to genotype M09, and had erect tillers at late stage, similar to genotype 9308. In terms of dry biomass per plant, DI508 was consistently higher than those of M09 and 9308 throughout the growth. It was also a distinct difference of leaf area per plant that DI508 was larger than two others. From booting stage, DI508 and 9308 maintained higher photosynthetic ability of the topmost three leaves, while M09 showed rapid decline in photosynthesis during grain filling. It may be concluded that the genotype DI508 with dynamic tiller angle habit has a comprehensive advantage of fast growth and high weed competition at early stage and slow decline in photosynthesis at late stage.

关键词： growth habit photosynthesis plant type rice (Oryza sativa L.) tiller

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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

Different prognostic association of systolic blood pressure at different time points with postdischarge events in patients hospitalized for decompensated heart failure

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Journal of Geriatric Cardiology 2019年第9期16卷 676-688,I0006-I0009页

作者： you-nan YAO Rong-Cheng ZHANG Tao AN Qi ZHANG Xin-Ke ZHAO Jian ZHANG State Key Laboratory of Cardiovascular Disease Heart Failure Care Unit of Fuwai Hospital National Center for Cardiovascular Diseases Chinese Academy of Medical Sciences and Peking Union Medical College Beijing China The Affiliated Hospital of Gansu University of Chinese Medicine Lanzhou China

Background The association of systolic blood pressure(SBP) with mortality in heart failure(HF) patients is paradoxical, and the time points of baseline SBP are also different across prior studies. We hypothesized that the levels of SBP at admission and at discharge had different associations with postdischarge events. Methods The study population included patients hospitalized for decompensated HF in the Heart Failure Center of Fuwai Hospital from January 1, 2009 to December 31, 2014. The primary outcome was a composite of cardiovascular(CV) death and heart transplantation. Multivariate Cox proportional-hazards and restricted cubic spline analyses were used to assess the relationships between SBP at different time points and outcomes. Results In total, 2005 patients were included with a median follow-up of 48.4 months. The median age was 59 years, and 69.9% were male. Multivariate Cox analyses showed that compared with SBP < 105 mm Hg, higher SBP at admission was associated with better long-term primary outcome(105–119 mm Hg, HR = 0.764, P = 0.005;120-134 mm Hg, HR = 0.658, P < 0.001;≥ 135 mm Hg, HR = 0.657, P = 0.001). Patients whose discharge SBP was higher than 135 mm Hg had a similar primary outcome as those with SBP < 105 mm Hg(HR = 0.969, P = 0.867), and the results remained unchanged even after adjusting for admission SBP(HR = 1.235, P = 0.291). The results of restricted cubic spline analysis indicated similar associations. Conclusions Lower but not higher SBP at admission is associated with more CV deaths/heart transplantations(a reverse J-shaped curve). In contrast, there is a U-shaped association between discharge SBP and CV mortality/heart transplantation.

关键词： Admission Discharge Heart failure Outcome Systolic blood pressure

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