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RAD51B-AS1 promotes the malignant biological behavior of ovarian cancer through upregulation of RAD51B

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2024年第7期25卷 581-593页

作者： Xinyi WEI Conghui WANG Sangsang TANG qian YANG Zhangjin SHEN Jiawei ZHU Xiaodong CHENG Xinyu WANG Xing xie Junfen XU Weiguo LU Women's Reproductive Health Laboratory of Zhejiang Province Women�s HospitalZhejiang University School of MedicineHangzhou 310006China Department of Gynecologic Oncology Women�s HospitalZhejiang University School of MedicineHangzhou 310006China Cancer Center Zhejiang UniversityHangzhou 310058China Department of Obstetrics and Gynecology the First Affiliated HospitalZhejiang University School of MedicineHangzhou 310003China Zhejiang Provincial Clinical Research Center for Obstetrics and Gynecology Hangzhou 310006China

Long non-coding RNAs(lncRNAs)play an indispensable role in the occurrence and development of ovarian cancer(OC).However,the potential involvement of lncRNAs in the progression of OC is largely *** investigate the detailed roles and mechanisms of RAD51 homolog B-antisense 1(RAD51B-AS1),a novel lncRNA in OC,reverse transcription-quantitative polymerase chain reaction(RT-qPCR)was performed to verify the expression of *** proliferation,metastasis,and apoptosis were detected using the cell counting kit-8(CCK-8),colony-formation,transwell,and flow cytometry *** xenograft models were established for the detection of *** results revealed that RAD51B-AS1 was significantly upregulated in a highly metastatic human OC cell line and OC ***51B-AS1 significantly increased the proliferation and metastasis of OC cells and enhanced their resistance to *** prediction analysis revealed that the only target gene of RAD51B-AS1 was *** gene function experiments revealed that RAD51B exerts the same biological effects as *** experiments demonstrated that the malignant biological behaviors promoted by RAD51B-AS1 overexpression were partially or completely reversed by RAD51B silencing in vitro and in ***,RAD51B-AS1 promotes the malignant biological behaviors of OC and activates the protein kinase B(Akt)/B cell lymphoma protein-2(Bcl-2)signaling pathway,and these effects may be associated with the positive regulation of RAD51B ***51B-AS1 is expected to serve as a novel molecular biomarker for the diagnosis and prediction of poor prognosis in OC,and as a potential therapeutic target for disease management.

关键词： Ovarian cancer(OC) Long non-coding RNA(LncRNA) Metastasis Anoikis

Selective photosynthesis of Z-olefins through crystalline metal-organic cage-initiated expeditious cascade reactions

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Carbon Energy 2024年第3期6卷 118-131页

作者： Jia-Ni Lu Yunze Huang Yuan-Sheng Xia Long-Zhang Dong Lei Zhang Jing-Jing Liu Lan-Gui xie Jiang Liu Ya-qian Lan Jiangsu Key Laboratory of New Power Batteries School of Chemistry and Materials ScienceJiangsu Collaborative Innovation Centre of Biomedical Functional MaterialsNanjing Normal UniversityNanjingChina School of Chemistry South China Normal UniversityGuangzhouChina

The semi-hydrogenation of alkyne to form Z-olefins with high conversion and high selectivity is still a huge challenge in the chemical ***,flammable and explosive hydrogen as the common hydrogen source of this reaction increases the cost and danger of industrial ***,we connect the photocatalytic hydrogen evolution reaction and the semihydrogenation reaction of alkynes in series and successfully realize the high selective production of Z-alkenes using low-cost,safe,and green water as the proton *** the cascade reaction,a series of isomorphic metal–organic cage catalysts(Co_(x)Zn_(8−x)L_(6),x=0,3,4,5,and 8)are designed and synthesized to improve the yield of the photocatalytic hydrogen *** them,Co_(5)Zn_(3)L_(6) shows the highest photocatalytic activity,with a H_(2) generation rate of 8.81 mmol g^(−1) h^(−1).Then,Co_(5)Zn_(3)L_(6) is further applied in the above tandem reaction to efficiently reduce alkynes to Z-alkenes under ambient conditions,which can reach high conversion of>98%and high selectivity of>99%,and maintain original catalytic activity after multiple ***“one-pot”tandem reaction can achieve a highly selective and safe stepwise conversion from water into hydrogen into Z-olefins under mild reaction conditions.

关键词： alkyne semi-hydrogenation hydrogen evolution reaction metal-organic cages photocatalysis Z-olefins

A Polyvinyl Alcohol/Acrylamide Hydrogel with Enhanced Mechanical Properties Promotes Full-Thickness Skin Defect Healing by Regulating Immunomodulation and Angiogenesis Through Paracrine Secretion

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Engineering 2024年第6期37卷 138-151页

作者： Peng Wang Liping qian Huixin Liang Jianhao Huang Jing Jin Chunmei xie Bin Xue Jiancheng Lai Yibo Zhang Lifeng Jiang Lan Li Qing Jiang State Key Laboratory of Pharmaceutical Biotechnology Division of Sports Medicine and Adult Reconstructive SurgeryDepartment of Orthopedic SurgeryNanjing Drum Tower HospitalThe Affiliated Hospital of Nanjing University Medical SchoolNanjing UniversityNanjing 210008China Jiangsu Engineering Research Center for 3D Bioprinting Nanjing 210008China Institute of Medical 3D Printing Nanjing UniversityNanjing 210093China Centre for Experimental Animals Nanjing Drum Tower HospitalThe Affiliated Hospital of Nanjing University Medical SchoolNanjing UniversityNanjing 210008China College of Aeroplane Engineering Nanjing University of Aeronautics and AstronauticsNanjing 210016China National Laboratory of Solid State Microstructures Department of PhysicsNanjing UniversityNanjing 210093China Department of Chemical Engineering Stanford UniversityStanfordCA 94305USA Department of Orthopedic Surgery The Second Affiliated Hospital Zhejiang University School of MedicineOrthopedic Research Institute of Zhejiang UniversityKey Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang ProvinceHangzhou 310009China

Hydrogel-based tissue-engineered skin has attracted increased attention due to its potential to restore the structural integrity and functionality of ***,the mechanical properties of hydrogel scaffolds and natural skin are substantially ***,we developed a polyvinyl alcohol(PVA)/acrylamide based interpenetrating network(IPN)hydrogel that was surface modified with polydopamine(PDA)and termed *** Dopa-gel exhibited mechanical properties similar to native skin tissue and a superior ability to modulate paracrine ***,a tough scaffold with tensile resistance was fabricated using this hydrogel by three-dimensional *** results showed that the interpenetration of PVA,alginate,and polyacrylamide networks notably enhanced the mechanical properties of the *** modification with PDA endowed the hydrogels with increased secretion of immunomodulatory and proangiogenic *** an in vivo model,Dopa-gel treatment accelerated wound closure,increased vascularization,and promoted a shift in macrophages from a proinflammatory M1 phenotype to a prohealing and anti-inflammatory M2 phenotype within the wound ***,the focal adhesion kinase(FAK)/extracellular signal-related kinase(ERK)signaling pathway may mediate the promotion of skin defect healing by increasing paracrine secretion via the ***,proangiogenic factors can be induced through Rho-associated kinase-2(ROCK-2)/vascular endothelial growth factor(VEGF)-mediated paracrine secretion under tensile stress *** together,these findings suggest that the multifunctional Dopa-gel,which has good mechanical properties similar to those of native skin tissue and enhanced immunomodulatory and angiogenic properties,is a promising scaffold for skin tissue regeneration.

关键词： Polyvinyl alcohol/acrylamide hydrogel Mechanical property enhancement Paracrine effect Skin regeneration Signaling pathways

Health risks and sources of trace elements and black carbon in PM_(2.5)from 2019 to 2021 in Beijing

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Journal of Environmental Sciences 2024年第8期142卷 69-82页

作者： Chenjie Hua Wei Ma Feixue Zheng Yusheng Zhang Jiali xie Li Ma Boying Song Chao Yan Hongyan Li Zhen Liu qian Liu Markku Kulmala Yongchun Liu Aerosol and Haze Laboratory Advanced Innovation Center for Soft Matter Science and EngineeringBeijing University of Chemical TechnologyBeijing 100029China Institute for Atmospheric and Earth System Research Faculty of ScienceUniversity of HelsinkiHelsinki 00014Finland School of Environment and Safety Taiyuan University of Science and TechnologyTaiyuan 030024China State Key Laboratory of Environmental Chemistry and Ecotoxicology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China

A comprehensive health risk assessment of PM_(2.5)is meaningful to understand the current status and directions regarding further improving air quality from the perspective of human *** this study,we evaluated the health risks of PM_(2.5)as well as highly toxic inorganic components,including heavy metals(HMs)and black carbon(BC)based on longterm observations in Beijing from 2019 to *** results showed that the relative risks of chronic obstructive pulmonary disease,lung cancer,acute lower respiratory tract infection,ischemic heart disease,and stroke decreased by 4.07%-9.30%in 2020 and 2.12%-6.70%in2021 compared with ***,they were still at high levels ranging from 1.26 to 1.77,in particular,stroke showed the highest value in *** had the highest hazard quotient(HQ,from 2.18 to 2.56)for adults from 2019 to 2021,while Ni,Cr,Pb,As,and BC showed high carcinogenic risks(CR>1.0×10^(-6))for *** HQ values of Mn and As and the CR values of Pb and As showed constant or slight upwards trends during our observations,which is in contrast to the downward trends of other HMs and PM_(2.5).Mn,Cr,and BC are crucial toxicants in PM_(2.5).A significant shrink of southern region sourcesof HMs and BCshrank suggests the increased importance of local ***,dust,and biomass burning are the major contributors to the non-carcinogenic risks,while traffic emissions and industry are the dominant contributors to the carcinogenic risks in Beijing.

关键词： PM_(2.5) Heavy metals Black carbon Health risk Source apportionment

Reconfigurable and orthogonal stiffness-structure patterning of dynamically crosslinked amphigels

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SmartMat 2024年第2期5卷 145-155页

作者： Chen Yang Weizhong Zheng Chujun Ni Ye Li Di Chen Tao xie qian Zhao State Key Laboratory of Chemical Engineering College of Chemical and Biological EngineeringZhejiang UniversityHangzhouChina Ningbo Innovation Center Zhejiang UniversityNingboChina School of Chemical Engineering East China University of Science and TechnologyShanghaiChina

Patterning diversified properties and surface structure of polymer materials are of great importance toward their potential in biology,optics,and ***,achieving both the patternability of stiffness and microstructure in a reconfigurable manner remains ***,we prepare amphigels crosslinked by dynamic disulfide bonds,which can be reversibly swollen by immiscible water or liquid *** the paraffingel form,the materials exhibited a high modulus of 130 MPa due to densified hydrogen *** swollen by water,the modulus fell over two orders of magnitude owing to the destruction of the hydrogen *** regionalized swelling of the solvents,well-controlled and rewritable soft/stiff mechanical patterns can be *** the other hand,the dynamic exchange of the disulfide crosslinking enables mechanophoto patterning to fabricate sophisticated macrogeometries and *** reconfigurable stiffness-structure patterning can be manipulated orthogonally,which will create more application opportunities beyond conventional hydrogels and organogels.

关键词： amphigels dynamic crosslinking hydrogels organogels surface patterning

A machine learning model for diagnosing acute pulmonary embolism and comparison with Wells score,revised Geneva score,and Years algorithm

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Chinese Medical Journal 2024年第6期137卷 676-682页

作者： Linfeng Xi Han Kang Mei Deng Wenqing Xu Feiya Xu qian Gao Wanmu xie Rongguo Zhang Min Liu Zhenguo Zhai Chen Wang Capital Medical University Beijing 100069China National Center for Respiratory Medicine State Key Laboratory of Respiratory Health and MultimorbidityNational Clinical Research Center for Respiratory DiseasesInstitute of Respiratory MedicineChinese Academy of Medical SciencesDepartment of Pulmonary and Critical Care MedicineCenter of Respiratory MedicineChina-Japan Friendship HospitalBeijing 100029China Institute of Advanced Research Infervision Medical Technology Co.Ltd.Beijing 100025China Department of Radiology China-Japan Friendship HospitalBeijing 100029China Chinese Academy of Medical Sciences and Peking Union Medical College Beijing 100730China Department of Radiology Peking University China-Japan Friendship School of Clinical MedicineBeijing 100191China

Background:Acute pulmonary embolism(APE)is a fatal cardiovascular disease,yet missed diagnosis and misdiagnosis often occur due to non-specific symptoms and signs.A simple,objective technique will help clinicians make a quick and precise *** population studies,machine learning(ML)plays a critical role in characterizing cardiovascular risks,predicting outcomes,and identifying *** work sought to develop an ML model for helping APE diagnosis and compare it against current clinical probability assessment ***:This is a single-center retrospective *** with suspected APE were continuously enrolled and randomly divided into two groups including training and testing sets.A total of 8 ML models,including random forest(RF),Naïve Bayes,decision tree,K-nearest neighbors,logistic regression,multi-layer perceptron,support vector machine,and gradient boosting decision tree were developed based on the training set to diagnose ***,the model with the best diagnostic performance was selected and evaluated against the current clinical assessment strategies,including the Wells score,revised Geneva score,and Years ***,the ML model was internally validated to assess the diagnostic performance using receiver operating characteristic(ROC)***:The ML models were constructed using eight clinical features,including D-dimer,cardiac troponin T(cTNT),arterial oxygen saturation,heart rate,chest pain,lower limb pain,hemoptysis,and chronic heart *** eight ML models,the RF model achieved the best performance with the highest area under the curve(AUC)(AUC=0.774).Compared to the current clinical assessment strategies,the RF model outperformed the Wells score(P=0.030)and was not inferior to any other clinical probability assessment *** AUC of the RF model for diagnosing APE onset in internal validation set was ***:Based on RF algorithm,a novel prediction model was finally constructed for AP

关键词： Acute pulmonary embolism Machine learning Wells score Revised Geneva score Years algorithm

Recycling Dead Ringers

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China Weekly 2024年第7期 49-52页

作者： Meng qian xie Ying 不详

Few Chinese consumers recycle their old cellphones over fears of putting the personal information they hold in someone else's *** are now calling on the government to standardize and regulate the resale and recycling ... 详细信息

关键词： cycling someone industry.

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Fashion Victims

China Weekly 2024年第2期 40-44页

作者： Meng qian xie Ying 不详

Wholesale markets are taking a hit from livestream *** and market bosses are scrambling to stay competitive,while others say they need to embrace the inevitable online future。

关键词： competitive market stream

E-commerce Hard Bargaining

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China Weekly 2024年第7期 46-48页

作者： Meng qian xie Ying 不详

Major e-commerce platforms have stopped offering advance sales ahead of shopping promotions,although experts say that in a crowded ecosystem,they should reconsider how they appeal to consumers and support retailers if... 详细信息

关键词： shopping retail offering