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METTL5 promotes gastric cancer progression via sphingomyelin metabolism

World Journal of Gastrointestinal Oncology 2024年第5期16卷 1925-1946页

作者： Ya-Qiong Zhang Jian Li Zhe Qin De-Ming Li Fang-Zhou Ye Song-Hua Bei Xiao-Hong Zhang Li Feng Endoscopy Center Minhang Hospital Affiliated to Fudan UniversityShanghai 201100China

BACKGROUND The treatment of gastric cancer(GC)has caused an enormous social burden *** studies have reported that N6-methyladenosine(m6A)is closely related to tumor ***5 is a m6A methyltransferase that plays a pivotal role in maintaining the metabolic stability of ***,its aberrant regulation in GC has not been fully *** To excavate the role of METTL5 in the development of *** METTL5 expression and clinicopathological characteristics were analyzed via The Cancer Genome Atlas dataset and further verified via immunohistochemistry,western blotting and real-time quantitative polymerase chain reaction in tissue microarrays and clinical *** tumor-promoting effect of METTL5 on HGC-27 and AGS cells was explored in vitro by Cell Counting Kit-8 assays,colony formation assays,scratch healing assays,transwell assays and flow *** tumor-promoting role of METTL5 in vivo was evaluated in a xenograft tumor *** EpiQuik m6A RNA Methylation Quantification Kit was used for m6A ***,liquid chromatography-mass spectrometry was used to evaluate the association between METTL5 and sphingomyelin metabolism,which was confirmed by Enzyme-linked immunosorbent assay and rescue *** addition,we investigated whether METTL5 affects the sensitivity of GC cells to cisplatin via colony formation and transwell *** Our research revealed substantial upregulation of METTL5,which suggested a poor prognosis of GC *** METTL5 expression indicated distant lymph node metastasis,advanced cancer stage and pathological *** increased level of METTL5 correlated with a high degree of m6A ***5 markedly promotes the proliferation,migration,and invasion of GC cells in ***5 also promotes the growth of GC in animal ***5 knockdown resulted in significant changes in sphingomyelin metabolism,which implies that METTL5 may impact the development of GC via sphin

关键词： Gastric cancer METTL5 Sphingomyelin metabolism Cisplatin

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High patatin like phospholipase domain containing 8 expression as a biomarker for poor prognosis of colorectal cancer

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World Journal of Gastrointestinal Oncology 2024年第3期16卷 787-797页

作者： Peng-Yang Zhou De-Xiang Zhu Yi-Jiao Chen Qing-Yang Feng Yi-Hao Mao Ao-Bo Zhuang Jian-Min Xu Department of General Surgery Zhongshan Hospital Fudan UniversityShanghai 200032China

BACKGROUND Patatin like phospholipase domain containing 8(PNPLA8)has been shown to play a significant role in various cancer *** studies have focused on its roles as an antioxidant and in lipid ***,the role of PNPLA8 in colorectal cancer(CRC)progression is *** To explore the prognostic effects of PNPLA8 expression in *** A retrospective cohort containing 751 consecutive CRC patients was ***8 expression in tumor samples was evaluated by immunohistochemistry staining and semi-quantitated with immunoreactive *** patients were divided into high and low PNPLA8 expression groups based on the cut-off va-lues,which were calculated by X-tile *** prognostic value of PNPLA8 was identified using univariate and multivariate Cox regression *** over-all survival(OS)rates of CRC patients in the study cohort were compared with Kaplan-Meier analysis and Log-rank *** PNPLA8 expression was significantly associated with distant metastases in our cohort(P=0.048).CRC patients with high PNPLA8 expression indicated poor OS(median OS=35.3,P=0.005).CRC patients with a higher PNPLA8 expression at either stage I and II or stage III and IV had statistically significant shorter *** patients with left-sided colon and rectal cancer,the survival curves of two PN-PLA8-expression groups showed statistically significant *** analysis also confirmed that high PNPLA8 expression was an independent prog-nostic factor for overall survival(hazard ratio HR=1.328,95%CI:1.016-1.734,P=0.038).

关键词： Biomarker Colorectal cancer Expression level Overall survival Patatin like phospholipase domain containing 8 Prognosis

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Distinct immune escape and microenvironment between RG-like and pri-OPC-like glioma revealed by single-cell RNA-seq analysis

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Frontiers of Medicine 2024年第1期18卷 147-168页

作者： Weiwei Xian Mohammad Asad Shuai Wu Zhixin Bai Fengjiao Li Junfeng Lu Gaoyu Zu Erin Brintnell Hong Chen Ying Mao Guomin Zhou Bo Liao Jinsong Wu Edwin Wang Linya You Department of Human Anatomy&Histoembryology School of Basic Medical SciencesFudan UniversityShanghai200032China Cumming School of Medicine University of CalgaryCalgaryAlbertaT2N 4N1Canada Glioma Surgery Division Department of NeurosurgeryHuashan HospitalFudan UniversityShanghai200040China Department of Pathology Huashan HospitalFudan UniversityShanghai200040China Department of Neurosurgery Huashan HospitalFudan UniversityShanghai200040China Shanghai Key Laboratory of Medical Imaging Computing and Computer Assisted Intervention Fudan UniversityShanghai200040China School of Mathematics and Statistics Hainan Normal UniversityHaikou570100China

The association of neurogenesis and gliogenesis with glioma remains *** conducting single-cell RNA-seq analyses on 26 gliomas,we reported their classification into primitive oligodendrocyte precursor cell(pri-OPC)-like and radial glia(RG)-like tumors and validated it in a public cohort and TCGA *** RG-like tumors exhibited wild-type isocitrate dehydrogenase and tended to carry EGFR mutations,and the pri-OPC-like ones were prone to carrying TP53 *** subclones only in pri-OPC-like tumors showed substantially down-regulated MHC-I genes,suggesting their distinct immune evasion ***,the two subgroups appeared to extensively modulate glioma-infiltrating lymphocytes in distinct *** specific genes not expressed in normal immune cells were found in glioma-infiltrating *** example,glial/glioma stem cell markers OLIG1/PTPRZ1 and B cell-specific receptors IGLC2/IGKC were expressed in pri-OPC-like and RG-like glioma-infiltrating lymphocytes,*** expression was positively correlated with those of immune checkpoint genes(e.g.,LGALS33)and poor survivals as validated by the increased expression of LGALS3 upon IGKC overexpression in Jurkat *** finding indicated a potential inhibitory role in tumor-infiltrating lymphocytes and could provide a new way of cancer immune evasion.

关键词： single-cell RNA-seq glioma radial glia primitive oligodendrocyte precursor cell immune escape

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A new portable open-path instrument for ambient NH_(3) and on-road emission measurements

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Journal of Environmental Sciences 2024年第2期136卷 606-614页

作者： Wenhao Dai Shanshan Wang Sanbao Zhang Jian Zhu Chuanqi Gu Zhibin Sun Ruibin Xue Bin Zhou Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention(LAP3) Department of Environmental Science and EngineeringFudan UniversityShanghai 200438China Institute of Eco-Chongming(IEC) Shanghai 202162China Institute of Atmospheric Sciences Fudan UniversityShanghai 200433China

Increased attentions to vehicle emission of NH_(3)have been paid since it is generally regarded as an important source in urban ***,we developed a movable instrument based on Differential Optical Absorption Spectroscopy(DOAS)principle for detecting on-road NH_(3),which can avoid the losses in the sampling process attributed to the non-sampling *** this mobile DOAS,the temporal resolution,detection limit and relative error for NH_(3)were 1 min,2.29 ppbv and 4.57%±2.44%,*** employed to the on-road measurements along the arterial highway in Shanghai,the spatial distributions of NH_(3)and NO were obtained,and their dependence of traffic and road conditions were *** slopes of linear regression between NH_(3)and NO were 0.40,0.02 and 0.07 on the Middle Ring Road,Outer Ring Road and Chongming Island Ring *** indicates that light gasoline vehicles(LGVs)were found to be the main contributor to NH_(3)emissions,while heavy-duty diesel vehicles(HDVs)mainly emitted *** on the measured NH_(3)in the tunnel,the mileagebased NH_(3)emission factor per vehicle was estimated to be 17.9±6.3 mg/*** reported open-path instrument can be broadly used in on-road pollutant monitoring or vehicle emissions,and the measurements can reveal the real situation of emission characteristics,even find the abnormal operations of vehicle catalyst system.

关键词： Ammonia Traffic emissions DOAS Emission factor Mobile measurements

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Inflection Point Age in the Middle and Older Women—Jiangxi Province,China,2020-2022

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China CDC weekly 2024年第9期6卷 162-167页

作者： Shanlan Yang Langlang Zhang Helang Huang Jiaofeng Wang Lei Wu Zhijun Bao Shanghai Institute of Infectious Disease and Biosecurity Fudan UniversityShanghaiChina Department of Gerontology Huadong Hospital Affiliated to Fudan UniversityShanghai Key Laboratory of Clinical Geriatric MedicineResearch Center on Aging and MedicineFudan UniversityShanghaiChina Jiangxi Provincial Key Laboratory of Preventive Medicine School of Public HealthNanchang UniversityNanchang CityJiangxi ProvinceChina

Summary What is already known about this topic?Previous studies have predominantly examined the micro-level aspects of women aging inflection points,while macro-level research using big data on the inflection points o... 详细信息

关键词： Middle Jiangxi currently

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Stability and variability of molecular subtypes: comparative analysis of primary and metastatic triple-negative breast cancer

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Cancer Biology & Medicine 2024年第9期21卷 784-798页

作者： Xiuzhi Zhu Xiaohan Ying Yin Liu Yunyi Wang Li Chen Zhiming Shao Xi Jin Yizhou Jiang Zhonghua Wang Key Laboratory of Breast Cancer in Shanghai Shanghai Institute of Infectious Disease and Biosecurity Department of Oncology Shanghai Medical College Fudan University Department of Breast Surgery Fudan University Shanghai Cancer Center

Objective: Triple-negative breast cancer(TNBC) is a heterogeneous and aggressive cancer. Although our previous study classified primary TNBC into four subtypes, comprehensive longitudinal investigations are ***: We assembled a large-scale, real-world cohort comprised of 880 TNBC patients [465 early-stage TNBC(e TNBC) and 415 metastatic TNBC(m TNBC) patients] who were treated at fudan University Shanghai Cancer Center. The longitudinal dynamics of TNBC subtypes during disease progression were elucidated in this patient cohort. Comprehensive analysis was performed to compare primary and metastatic lesions within specific TNBC ***: The recurrence and metastasis rates within 3 years after initial diagnosis in the e TNBC cohort were 10.1%(47/465). The median overall survival(OS) in the m TNBC cohort was 27.2 months [95% confidence interval(CI), 24.4±30.2 months], which indicated a poor prognosis. The prognostic significance of the original molecular subtypes in both e TNBC and m TNBC patients was confirmed. Consistent molecular subtypes were maintained in 77.5% of the patients throughout disease progression with the mesenchymal-like(MES) subtype demonstrating a tendency for subtype transition and brain metastasis. Additionally, a precision treatment strategy based on the metastatic MES subtype of target lesions resulted in improved progression-free survival in the FUTURE ***: Our longitudinal study comprehensively revealed the clinical characteristics and survival of patients with the original TNBC subtypes and validated the consistency of most molecular subtypes throughout disease progression. However, we emphasize the major importance of repeat pathologic confirmation of the MES subtype.

关键词： Triple-negative breast cancer metastasis molecular subtype overall survival primary tumor

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FSS: algorithm and neural network accelerator for style transfer

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Science China(Information Sciences) 2024年第2期67卷 253-266页

作者： Yi LING Yujie HUANG Yujie CAI Zhaojie LI Mingyu WANG Wenhong LI Xiaoyang ZENG State Key Laboratory of ASIC & System Fudan University Shanghai Explore X Technology Co. Ltd.

Neural networks(NNs), owing to their impressive performance, have gradually begun to dominate multimedia processing. For resource-constrained and energy-sensitive mobile devices, an efficient NN accelerator is necessary. Style transfer is an important multimedia application. However, existing arbitrary style transfer networks are complex and not well supported by current NN accelerators, limiting their application on mobile devices. Moreover, the quality of style transfer needs improvement. Thus, we design the Fast Style system(FSS), where a novel algorithm and an NN accelerator are proposed for style transfer. In FSS, we first propose a novel arbitrary style transfer algorithm, Fast Style. We propose a light network that contributes to high quality and low computational complexity and a prior mechanism to avoid retraining when the style changes. Then, we redesign an NN accelerator for Fast Style by applying two improvements to the basic NVIDIA deep learning accelerator(NVDLA) architecture. First, a flexible dat FSM and wt FSM are redesigned to enable the original data path to perform other operations(including the GRAM operation)by software programming. Moreover, statistics and judgment logic are designed to utilize the continuity of a video stream and remove the data dependency in the instance normalization, which improves the accelerator performance by 18.6%. The experimental results demonstrate that the proposed Fast Style can achieve higher quality with a lower computational cost, making it more suitable for mobile devices. The proposed NN accelerator is implemented on the Xilinx VCU118 FPGA under a 180-MHz clock. Experimental results show that the accelerator can stylize 512×512-pixel video with 20 FPS, and the measured performance reaches up to 306.07 GOPS. The ASIC implementation in TSMC 28 nm achieves about 22 FPS in the case of a 720-p video.

关键词： neural network accelerator style transfer neural network deep learning

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Integration of HiBiT into enteroviruses:A universal tool for advancing enterovirus virology research

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Virologica Sinica 2024年第3期39卷 422-433页

作者： Rui Yu Xiaohong Li Peng Zhang Minghao Xu Jitong Zhao Jingjing Yan Chenli Qiu Jiayi Shu Shuo Zhang Miaomiao Kang Xiaoyan Zhang Jianqing Xu Shuye Zhang School of Medicine Shanghai UniversityShanghai200444China Clinical Center for Biotherapy Zhongshan HospitalFudan UniversityShanghai200433China Guangzhou Institutes of Biomedicine and Health The Chinese Academy of SciencesGuangzhou510530China Institutes of Biomedical Sciences Fudan UniversityShanghai200032China Shanghai Geriatric Medical Center Shanghai201104China Clinical Center for Biotherapy Zhongshan Hospital/Zhongshan Hospital(Xiamen)Fudan University361015China Shanghai Public Health Clinical Center Fudan UniversityShanghai201508China

The utilization of enteroviruses engineered with reporter genes serves as a valuable tool for advancing our understanding of enterovirus biology and its applications,enabling the development of effective therapeutic and preventive *** this study,our initial attempts to introduce a NanoLuc luciferase(NLuc)reporter gene into recombinant enteroviruses were unsuccessful in rescuing viable *** hypothesized that the size of the inserted tag might be a determining factor in the rescue of the ***,we inserted the 11-amino-acid HiBiT tag into the genomes of enterovirus A71(EV-A71),coxsackievirus A10(CVA10),coxsackievirus A7(CVA7),coxsackievirus A16(CVA16),namely EV-A71-HiBiT,CVA16-HiBiT,CVA10-HiBiT,CVA7-HiBiT,and observed that the HiBiT-tagged viruses exhibited remarkably high rescue ***,the HiBiT-tagged enteroviruses displayed comparable characteristics to the wild-type viruses.A direct comparison between CVA16-NLuc and CVA16-HiBiT recombinant viruses revealed that the tiny HiBiT insertion had minimal impact on virus infectivity and replication ***,these HiBiT-tagged enteroviruses demonstrated high genetic stability in different cell lines over multiple *** addition,the HiBiT-tagged viruses were successfully tested in antiviral drug assays,and the sensitivity of the viruses to drugs was not affected by the HiBiT ***,our findings provide definitive evidence that the integration of HiBiT into enteroviruses presents a universal,convenient,and invaluable method for advancing research in the realm of enterovirus ***,HiBiT-tagged enteroviruses exhibit great potential for diverse applications,including the development of antivirals and the elucidation of viral infection mechanisms.

关键词： Enterovirus Infectious clones Reporter genes Luciferase Drug screening

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Identifying the risk factors for pancreatic fistula after laparoscopic pancreaticoduodenectomy in patients with pancreatic cancer

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World Journal of Gastrointestinal Surgery 2024年第6期16卷 1609-1617页

作者： Hang Xu Qing-Cai Meng Jie Hua Wei Wang Department of Pancreatic Surgery Fudan University Shanghai Cancer CenterShanghai 200032China Department of Oncology Shanghai Medical CollegeFudan UniversityShanghai 200032China

BACKGROUND Laparoscopic pancreaticoduodenectomy(LPD)is a surgical procedure for treating pancreatic cancer;however,the risk of complications remains high owing to the wide range of organs involved during the surgery and the difficulty of *** fistula(PF)is a major complication that not only increases the risk of postoperative infection and abdominal hemorrhage but may also cause multi-organ failure,which is a serious threat to the patient’s *** study hypothesized the risk factors for PF after *** To identify the risk factors for PF after laparoscopic pancreatoduodenectomy in patients with pancreatic *** We retrospectively analyzed the data of 201 patients admitted to the fudan University Shanghai Cancer Center between August 2022 and August 2023 who underwent LPD for pancreatic *** the basis of the PF’s incidence(grades B and C),patients were categorized into the PF(n=15)and non-PF groups(n=186).Differences in general data,preoperative laboratory indicators,and surgery-related factors between the two groups were compared and analyzed using multifactorial logistic regression and receiver-operating characteristic(ROC)curve *** The proportions of males,combined hypertension,soft pancreatic texture,and pancreatic duct diameter≤3 mm;surgery time;body mass index(BMI);and amylase(Am)level in the drainage fluid on the first postoperative day(Am>1069 U/L)were greater in the PF group than in the non-PF group(P24.91 kg/m²[odds ratio(OR)=13.978,95%confidence interval(CI):1.886-103.581],hypertension(OR=8.484,95%CI:1.22-58.994),soft pancreatic texture(OR=42.015,95%CI:5.698-309.782),and operation time>414 min(OR=15.41,95%CI:1.63-145.674)were risk factors for the development of PF after LPD for pancreatic cancer(all P<0.05).The areas under the ROC curve for BMI,

关键词： Pancreatic cancer Laparoscopy Pancreaticoduodenectomy Pancreatic fistula Risk factors Receiver-operating characteristic curve

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Artificial Water Channel Promoting Depolymerization of Actin Filaments to Trigger Cancer Cell Apoptosis

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Chinese Journal of Chemistry 2024年第12期42卷 1335-1340页

作者： Lei Zhang Yin-Gui Cao Ting Fan Jjiatong Zhao Yong-Hong Fu Qi Xiao Zhan-Ting Li Yunfeng Wang Bo Xiao Jun-Li Hou Department of Chemistry Fudan University220 Handan RoadShanghai 200433China State Key Laboratory of Silkworm Genome Biology Cllege of SericultureTextileand Biomass Sciences InstitutionSouthwest UniversityChongqing400715China ENT Institute and Otorhinolaryngology Department of Eye&ENT Hospital Fudan UniversityShanghai 200031 fudan International School 325 Guoquan RoadShanghai 200433China

Actin filaments play important physiological functions,which have become potential targets of antitumor *** chemicals to intervene their polymerization-depolymerization dynamics would generate new strategies for designing antitumor *** this report,an artificial water channel appending acetazolamide moiety,a ligand that can selectively bind to carbonic anhydrase IX,has been prepared.

关键词： Artificial water channel Actin depolymerization Cell apoptosis Nanostructures Molecular recognition Supramolecular chemistry

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