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CD36 promotes tubular ferroptosis by regulating the ubiquitination of FSP1 in acute kidney injury

Genes & Diseases 2024年第1期11卷 449-463页

作者： Yixin Ma Lili Huang Zheng Zhang Pengfei Yang Qingsong Chen Xujia Zeng Fangyan Tan Chunxia Wang Xiongzhong Ruan Xiaohui Liao Department of Nephrology The Second Affiliated HospitalChongqing Medical UniversityChongqing 400010China Department of Cell biology and Genetics Chongqing Medical UniversityChongqing 400016China centre for Nephrology Royal Free and University College Medical SchoolUniversity College LondonRoyal Free CampusRowland Hill StreetLondon NW32PFUnited Kingdom centre for Lipid Research Key Laboratory of Molecular Biology on Infectious DiseasesMinistry of EducationChongqing Medical UniversityChongqing 400016China Kuanren Laboratory of Translational Lipidology Centre for Lipid ResearchSecond Affiliated Hospital of Chongqing Medical UniversityChongqing 400010China

Reactive oxidative species(ROos)production-driven ferroptosis plays a role in acute kidney injury(Akl).However,its exact molecular mechanism is poorly *** receptor CD36 has important roles in oxidizing lipids,lipid accumulation,metabolic syndrome,and insulin resistance in chronic kidney disease,but its roles remain unexplored in *** present study investigated the role and mechanism of CD36 in regulating proximal tubular cell ferroptosis and *** expression of CD36 was found to be significantly up-regulated in AKI renal tissues and correlated with renal function,which might serve as an independent biomarker for AKl ***,in adult mice subjected to AKl,deletion of CD36(CD36-/-)induced tubular cell Ros accumulation,ferroptosis activation,and renal ***,combining LC-MS/MS,co-IP,and ubiquitination analyses revealed that CD36 could specifically bind to ferroptosis suppressor protein 1(FSP1)and regulate its ubiquitination at sites K16 and K24,leading to FSP1 degradation and progression of ferroptosis in *** present results emphasize a novel mechanism of CD36 in cisplatin-induced *** discovery of the special CD36 roles in promoting ferroptosis and AKI development by regulating the ubiquitination of FSP1 in proximal tubular cells may be potential therapeutic targets for ***,CD36 may play a key role in the progression of ***,targeting CD36 may provide a promising treatment option for AKI.

关键词： Acute kidney injury CD36 Ferroptosis FSP1 Ubiquitin-dependent degradation

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An unexpected cellular fountain of youth:platelets provide factors rejuvenating brain functions

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Signal Transduction and Targeted Therapy 2024年第1期9卷 16-18页

作者： Harald F.Langer Department of Cardiology AngiologyHaemostaseology and Medical Intensive CareUniversity Medical Centre MannheimMedical Faculty MannheimHeidelberg UniversityMannheimGermany German centre for Cardiovascular Research(DZHK) Partner Site Heidelberg/MannheimMannheimGermany European Center for Angioscience Medical Faculty MannheimHeidelberg UniversityMannheimGermany Cardiovascular systems biology Medical Clinic IUniversity Heart Center LübeckLübeckGermany

In a recent manuscript published in Nature,Schroer et *** that platelets and in particular platelet derived PF-4(CXCL4)are a novel factor,which can rejuvenate the mammalian neuronal system.1 These findings have the potential to trigger an entire new field of research opening new platelet-derived candidate effector molecules for supporting regeneration.

关键词： supporting platelets finding

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Astrocytes dynamically regulate the blood-brain barrier in the healthy brain

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Neural Regeneration Research 2024年第4期19卷 709-710页

作者： AgnėPociūtė Augustas Pivoriūnas Alexei Verkhratsky Department of Stem Cell biology State Research Institute Centre for Innovative MedicineVilniusLithuania Faculty of biology Medicine and HealthThe University of ManchesterManchesterUK Achucarro centre for Neuroscience IKERBASQUEBasque Foundation for ScienceBilbaoSpain Department of Forensic Analytical Toxicology School of Forensic MedicineChina Medical UniversityShenyangLiaoning ProvinceChina

The blood-brain barrier(BBB)(discovered and defined by Max Lewandowsky and Lina Stern,and not,as it is universally,and yet erroneously believed,by Paul Ehrlich(Verkhratsky and Pivoriunas,2023))that separates the nervous system from the circulation is evolutionarily conserved from arthropods to *** primeval BBB of the invertebrates and some early vertebrates was made solely by glial cells and secured(in invertebrates)by septate junctions.

关键词： Ehrlich barrier blood

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Identification and functional characterization of fish IL‑17 receptors suggest important roles in the response to nodavirus infection

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Marine Life Science & Technology 2024年第2期6卷 252-265页

作者： Carmen González‑Fernández Miguel A.García‑Álvarez Alberto Cuesta Department of Cell biology and Histology Faculty of BiologyUniversity of Murcia30100 MurciaSpain Laboratoire d’écotoxicologie Centre de Lyon-VilleurbanneINRAEUR RiverLy69625 VilleurbanneFrance

Th17 is a lymphocyte T helper(Th)subpopulation relevant in the control and regulation of the immune response characterized by the production of interleukin(IL)-*** crucial cytokine family acts through their binding to the IL-17 receptors(IL-17R),having up to six *** the biology of fish Th17 is well-recognized,the molecular and functional characterization of IL-17 and IL-17R has been ***,our aim was to identify and characterize the IL-17R repertory and regulation in the two main Mediterranean cultured fish species,the gilthead seabream(Sparus aurata)and the European sea bass(Dicentrarchus labrax).Our in silico results showed the clear identification of six members in each fish species,from IL-17RA to IL-17RE-like,with well-conserved gene structure and protein domains with their human *** of them showed wide and constitutive transcription in naïve tissues but with highest levels in mucosal tissues,namely skin,gill or *** leucocytes,T mitogens showed the strongest up-regulation in most of the il17 receptors though il17ra resulted in inhibition by most ***,in vivo nodavirus infection resulted in alterations on the transcription of il17 *** nodavirus infection led to some increments in the il17ra,il17rb,il17rc and il17rd transcripts in the susceptible European sea bass,many down-regulations were observed in the resistant gilthead *** data identify the presence and conservation of six coding IL-17R in gilthead seabream and European sea bass as well as their differential regulation in vitro and upon nodavirus infection.

关键词： Th17 cells IL-17 receptors Immunity Teleost fish Nodavirus(NNV) Aquaculture

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Fine-needle aspiration technique under endoscopic ultrasound guidance:A technical approach for RNA profiling of pancreatic neoplasms

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World Journal of Gastrointestinal Oncology 2024年第6期16卷 2663-2672页

作者： Sabina Sherafedinovna Seyfedinova Olga Aleksandrovna Freylikhman Polina Sergeevna Sokolnikova Konstantin Aleksandrovich Samochernykh Anna Aleksandrovna Kostareva Olga Viktorovna Kalinina Evgeniy Gennadievich Solonitsyn Research Laboratory of Digestive Cancer Almazov Medical Research CentreSaint-Petersburg 197341Russia Research Laboratory of Molecular and Cellular Modeling and Gene Therapy Almazov Medical Research CentreSaint-Petersburg 197341Russia Head of Russian Neurosurgical Institute Named after Prof.A.L.Polenova Russian Neurosurgical Institute Named after Prof.A.L.PolenovaSaint-Petersburg 191014Russia Head of Institute of Molecular biology and Genetics Almazov National Medical Research CentreSaint-Petersburg 197341Russia Research Laboratory of Autoimmune and Autoinflammatory Diseases Almazov National Medical Research CentreSaint-Petersburg 197341Russia

BACKGROUND Early diagnosis of pancreatic ductal adenocarcinoma(PDAC)has been a longstanding *** prognosis of patients with PDAC depends on the stage at *** is necessary to identify biomarkers for the detection and differentiation of pancreatic tumors and optimize PDAC sample preparation procedures for DNA and RNA *** molecular studies are done using paraffin-embedded blocks;however,the integrity of DNA and RNA is often compromised in this ***,RNA isolated from human pancreatic tissue samples is generally of low quality,in part,because of the high concentration of endogenous pancreatic RNAse activity *** To assess the potential of endoscopic ultrasound-guided fine-needle aspiration(EUS-FNA)to obtain specimens from pancreatic neoplasms for subsequent RNA molecular profiling,including next-generation sequencing(NGS).METHODS Thirty-four EUS-FNA samples were included in this study:PDAC(n=15),chronic pancreatitis(n=5),pancreatic cysts(n=14),mucinous cysts(mucinous cystic neoplasia/intraductal papillary mucinous neoplasia)n=7,serous cystic neoplasms n=5,and pseudocysts n=*** material consisted of cyst fluid and cyst wall samples obtained by through-the-needle biopsy(TTNB).Samples were stored at -80℃ until *** purity(A260/230,A260/280 ratios),concentration,and integrity(RIN)were ***-time polymerase chain reaction was conducted on all samples,and small RNA libraries were prepared from solid mass *** RNA was successfully extracted from 29/34(85%)EUS-FNA samples:100% pancreatic adenocarcinoma samples,100% chronic pancreatitis samples,70% pancreatic fluid cyst samples,and 50%TTNB *** relative expression of GAPDH and HPRT were obtained for all successfully extracted RNA samples(n=29)including lowquality RNA *** concentration and nonoptimal RIN values(no less than 3)of RNA extracted from EUS-FNA samples did not prevent NGS library *** suitability of cyst fluid samples

关键词： Endoscopic ultrasound-guided,fine-needle aspiration Pancreatic cancer Pancreatic cysts RNA extraction Through-the-needle biopsy Next-generation sequencing

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5-Fluorouracil dose escalation generated desensitized colorectal cancer cells with reduced expression of protein methyltransferases and no epithelial-to-mesenchymal transition potential

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Oncology Research 2024年第6期32卷 1047-1061页

作者： KIMBERLY FENECH ISAAC MICALLEF BYRON BARON centre for Molecular Medicine and Biobanking University of MaltaMsidaMSD 2080Malta Department of Tumor Genetics and biology Graduate School of Medical SciencesFaculty of Life SciencesKumamoto UniversityKumamoto860-8556Japan

Background:Colorectal cancer(CRC)is one of the most frequently diagnosed *** many cases,the poor prognosis of advanced CRC is associated with resistance to treatment with chemotherapeutic drugs such as 5-Fluorouracil(5-FU).The epithelial-to-mesenchymal transition(EMT)and dysregulation in protein methylation are two mechanisms associated with chemoresistance in many *** study looked into the effect of 5-FU dose escalation on EMT and protein methylation in *** and Methods:HCT-116,Caco-2,and DLD-1 CRC cell lines were exposed to dose escalation treatment of *** motility and invasive potentials of the cells before and after treatment with 5-FU were investigated through wound healing and invasion *** was followed by aWestern blot which analyzed the protein expressions of the epithelial marker E-cadherin,mesenchymal marker vimentin,and the EMT transcription factor(EMTTF),the snail family transcriptional repressor 1(Snail)in the parental and desensitized *** blotting was also conducted to study the protein expressions of the protein methyltransferases(PMTs),Euchromatic histone lysine methyltransferase 2(EHMT2/G9A),protein arginine methyltransferase(PRMT5),and SET domain containing 7/9(SETD7/9)along with the global lysine and arginine methylation ***:The dose escalation method generated 5-FU desensitized CRC cells with distinct morphological features and increased tolerance to high doses of *** 5-FU desensitized cells experienced a decrease in migration and invasion when compared to the parental *** was reflected in the observed reduction in E-cadherin,vimentin,and Snail in the desensitized cell ***,the protein expressions of EHMT2/G9A,PRMT5,and SETD7/9 also decreased in the desensitized cells and global protein lysine and arginine methylation became dysregulated with 5-FU ***:This study showed that continuous,dose-escalation treatment of 5-FU in CRC cells generated 5-FU

关键词： Chemoresistance Epithelial-to-mesenchymal transition Protein methylation Protein methyltransferases

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In-situ synthesis of quantum dots in the nucleus of live cells

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National Science Review 2024年第3期11卷 172-182页

作者： Yusi Hu Zhi-Gang Wang Haohao Fu Chuanzheng Zhou Wensheng Cai Xueguang Shao Shu-Lin Liu Dai-Wen Pang State Key Laboratory of Medicinal Chemical biology Frontiers Science Centre for New Organic MatterTianjin Key Laboratory of Biosensing and Molecular Recognition Research Centre for Analytical Sciences College of Chemistry School of Medicine and Frontiers Science Centre for Cell Responses Nankai University Haihe Laboratory of Sustainable Chemical Transformations

The cell nucleus is the main site for the storage and replication of genetic material, and the synthesis of substances in the nucleus is rhythmic, regular and strictly regulated by physiological processes. However,whether exogenous substances, such as nanoparticles, can be synthesized in situ in the nucleus of live cells has not been reported. Here, we have achieved in-situ synthesis of CdSxSe1-xquantum dots（QDs） in the nucleus by regulation of the glutathione（GSH） metabolic pathway. High enrichment of GSH in the nucleus can be accomplished by the addition of GSH with the help of the Bcl-2 protein. Then, high-valence Se is reduced to low-valence Se by glutathione-reductase-catalyzed GSH, and interacts with the Cd precursor formed through Cd and thiol-rich proteins, eventually generating QDs in the nucleus. Our work contributes to a new understanding of the syntheses of substances in the cell nucleus and will pave the way for the development of advanced ‘supercells’.

关键词： glutathione live cell nucleus quantum dot intracellular synthesis

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Recent progress in MOFs-based nanozymes for biosensing

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Nano Research 2024年第1期17卷 39-64页

作者： Imamdin Chandio Yongjian Ai Lei Wu Qionglin Liang MOE Key Laboratory of Bioorganic Phosphorus Chemistry&Chemical biology Department of ChemistryLaboratory of Flexible Electronics TechnologyCenter for Synthetic and Systems BiologyTsinghua University-Peking University Joint Centre for Life SciencesTsinghua UniversityBeijing 100084China

Nanozymes are nanomaterials with enzyme-mimicking catalytic *** to natural enzymes,nanozymes show various properties such as easy to manufacture,stable,adjustable,and *** play key roles in biosensing,biocatalysis,and disease *** an important kind of nanozymes,metal-organic framework(MOF)-based nanozymes are receiving a lot of attention due to their structural properties and *** developing MOF with enzymes-like catalytic properties has opened new perspectives in *** review summarizes the up-to-date developments in synthesizing two-dimensional and three-dimensional MOF-based nanozymes and their applications in ***,classification of nanozymes obtained by MOFs is categorized,and different properties of MOF-based nanozymes are ***,the distinctive applications of MOF-based nanozymes in identifying various analytes are thoroughly ***,the recent challenges and progressive directions in this area are highlighted.

关键词： metal-organic frameworks nanozymes metal-organic framework (MOF)-based nanozymes biosensing analytes

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Redefining biofuels:Investigating oil palm biomass as a promising cellulose feedstock for nitrocellulose-based propellant production

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Defence Technology（防务技术） 2024年第7期37卷 111-132页

作者： Khoirul Solehah binti Abdul Rahim Alinda binti Samsuri Siti Hasnawati binti Jamal Siti Aminah binti Mohd Nor Siti Nor Ain binti Rusly Hafizah binti Ariff Nur Shazwani binti Abdul Latif centre for Tropicalization(CENTROP) Defence Research InstituteUniversiti Pertahanan Nasional MalaysiaKem Sungai Besi57000 Kuala LumpurMalaysia Department of Chemistry and biology Centre for Defence Foundation StudiesUniversiti Pertahanan Nasional MalaysiaKem Sungai Besi57000 Kuala LumpurMalaysia

This review paper explores the potential of oil palm biomass as a valuable cellulose source for the production of nitrocellulose-based propellants,contributing to the green revolution and sustainable energy *** highlights the availability of the corresponding biomass in Malaysia and in line with global studies,the chemical compositions,as well as a brief description of current technologies for converting biomass of oil palm into value added products specifically *** to achieve maximum utilization of biomass from oil palm industry for cellulose production and prospective source for nitrocellulose-based propellant are also *** methodology section outlines the pretreatment of lignocellulosic fibres,cellulose extraction,and nitrocellulose production ***,the review underscores the prospective of palm oil biomass as a sustainable cellulose source for propellant manufacturing,while acknowledging the need for further research and advancements in the field.

关键词： Biopolymer Cellulose nitrate Energetic materials Green technology Palm oil

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Genome Analysis of Plasmodium falciparum:A Preliminary Observation-Sierra Leone,2022-2023

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China CDC weekly 2024年第17期6卷 368-373页

作者： Tianyu Wang Haimo Shen Bin Xu Wanxuan Yang Shenbo Chen Junhu Chen National Institute of Parasitic Diseases Chinese Center for Disease Control and Prevention(Chinese Center for Tropical Diseases Research)NHC Key Laboratory of Parasite and Vector BiologyWHO Collaborating Centre for Tropical DiseasesNational Centre for International Research on Tropical DiseasesShanghaiChina School of Basic medical Sciences and Forensic Medicine Hangzhou Medical CollegeHangzhou CityZhejiang ProvinceChina School of Global Health Chinese Centre for Tropical Diseases ResearchShanghai Jiao Tong University School of MedicineShanghaiChina Hainan Tropical Diseases Research Center(Hainan Sub-Center Chinese Center for Tropical Diseases Research)Haikou CityHainan ProvinceChina.

Summary What is already known about this topic?Sierra Leone,with a gross domestic product(GDP)per capita below$300 and significant poverty,ranks among the world’s least developed countries(LDCs).Despite its modest population of 8.6 million,the nation reports approximately 2.6 million malaria cases ***,there has been no reporting on the malaria genome data from this *** is added by this report?In this study,we present the first reported wholegenome sequence analysis of 19 high parasite-density Plasmodium falciparum isolates from Sierra Leone,providing insights into the genomic epidemiology of this high-prevalence *** found a high degree of relatedness among infections and substantial genetic diversity,consistent with the gradual reduction in overall case ***,our whole-genome analysis revealed that,beyond drug-resistance genes,gene families related to blood cell invasion,immune evasion,and others are undergoing directional *** suggests that the population in Sierra Leone has developed a relatively strong acquired *** are the implications for public health practice?The genomic data not only facilitate the creation of single nucleotide polymorphism barcodes for case tracking but also enable the analysis of evolving transmission dynamics and selection ***,the samples from Sierra Leone exhibited higher selective pressures on resistance genes compared to those from Asia,a trend not commonly observed in other African *** suggests that less stringent healthcare systems and inconsistent treatment strategies can subject parasites to increased drug pressure,thereby accelerating the development of resistant strains.

关键词： epidemiology invasion Observation

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