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Cellular preconditioning and mesenchymal stem cell ferroptosis

World Journal of Stem Cells 2024年第2期16卷 64-69页

作者： Doaa Hussein Zineldeen Mazhar Mushtaq Khawaja Husnain Haider Basic Sciences Sulaiman AlRajhi UniversityAlbukairiyah 52736AlQaseemSaudi Arabia department of Medical biochemistry and Molecular Biology Faculty of MedicineTanta UniversityTanta 6632110Egypt

In this editorial,we comment on the article published in the recent issue of the World Journal of Stem *** focus on stem cell preconditioning to prevent ferroptosis by modulating the cystathionineγ-lyase/hydrogen sulfide(H_(2)S)pathway as a novel approach to treat vascular disorders,particularly pulmonary *** stem cells are gaining popularity in regenerative medicine due to their unique ability to survive by resisting the harsh,unfavorable microenvironment of the injured *** also secrete various paracrine factors against apoptosis,necrosis,and ferroptosis to enhance cell ***,a regulated form of cell death characterized by iron accumulation and oxidative stress,has been implicated in various pathologies encompassing dege-nerative disorders to *** lipid peroxidation cascade initiates and sustains ferroptosis,generating many reactive oxygen species that attack and damage multiple cellular *** these intertwined mechanisms provi-des significant insights into developing therapeutic modalities for ferroptosis-related *** editorial primarily discusses stem cell preconditioning in modulating ferroptosis,focusing on the cystathionase gamma/H_(2)S ferroptosis *** presents a significant challenge in mesenchymal stem cell(MSC)-based therapies;hence,the emerging role of H_(2)S/cystathionase gamma/H_(2) S signaling in abrogating ferroptosis provides a novel option for therapeutic *** research into understanding the precise mechanisms of H_(2)S-mediated cytoprotection against ferroptosis is warranted to enhance the thera-peutic potential of MSCs in clinical settings,particularly vascular disorders.

关键词： Cell survival Cell therapy Hydrogen sulfide Ferroptosis Preconditioning Stem cells Umbilical cord

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Ferroptosis:A therapeutic opportunity of inflammatory bowel disease

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Chinese Medical Journal 2024年第7期137卷 874-876页

作者： Yulin Ye Limin Liu Yang Jing Shuangzhe Yao Mo Yang Xin Dai Meiyu Piao Xin Xu Zelin Feng Xiaoli Wang Yifei Liu Junming Miao Xingjie Gao Qingxiang Yu Xiaocang Cao department of Gastroenterology and Hepatology Tianjin Medical University General HospitalTianjin Medical UniversityTianjin 300070China department of biochemistry and Molecular Biology School of Basic Medical ScienceTianjin Medical UniversityTianjin 300070China

To the Editor:Even to this day,the etiology and pathogenesis of inammatory bowel disease(IBD)are still *** signicant progress in IBD treatment in recent years,some patients remain insensitive or non-responsive towards existing ***,further exploring IBD pathogenesis to develop novel therapeutic drugs or drug combinations is quite *** studies have demonstrated the therapeutic potential of regulating cell death in *** ferroptosis,a novel form of cell death,is also involved in the pathological process of IBD.

关键词： drugs death treatment

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Systematic pan-cancer analysis reveals OGT and OGA as potential biomarkers for tumor microenvironment and therapeutic responses

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Genes & Diseases 2024年第4期11卷 1-4页

作者： Chunyan Hou Ci Wu Wenge Zhu Huadong Pei Junfeng Ma department of Oncology Lombardi Comprehensive Cancer CenterGeorgetown UniversityWashingtonDC 20007USA department of biochemistry and Molecular Medicine School of Medicine and Health ScienceGeorge Washington UniversityWashingtonDC20052USA

Protein O-linkedβ-N-acetylglucosamine(O-GlcNAc)modification(O-GlcNAcylation)is a unique monosaccharide modification of essential importance in physiology and pathology.1,2 As a highly dynamic process,O-GlcNAcylation is mediated by two paired enzymes:O-GlcNAc transferase(OGT)and O-GlcNAcase(OGA),which add or remove the modification from proteins,*** evidence demonstrates that the aberrant O-GlcNAcylation underlies the initiation,progression,and metastasis of cancer.

关键词： metastasis pathology therapeutic

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Expanding through the Emerald Isle:exploration and spatial orientation of non-native bank voles in Ireland

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Current Zoology 2024年第3期70卷 320-331页

作者： Valeria Mazza Jana AEccard Animal Ecology Institute for Biochemistry and BiologyUniversity of PotsdamMaulbeerallee 114469PotsdamGermany and department of Ecological and Biological Sciences University of TusciaLargo dell'Università10100 ViterboItaly

Whether introduced into a completely novel habitat or slowly expanding their current range,the degree to which animals can effciently explore and navigate new environments can be key to survival,ultimately determining population establishment and colonization *** tested whether spatial orientation and exploratory behavior are associated with non-native spread in free-living bank voles(Myodes glareolus,N=43)from a population accidentally introduced to Ireland a century *** measured spatial orientation and navigation in a radial arm maze,and behaviors associated to exploratory tendencies and risk-taking in repeated open-feld tests,at the expansion edge and in the source *** voles at the expansion edge re-visited unrewarded arms of the maze more,waited longer before leaving it,took longer to start exploring both the radial arm maze and the open feld,and were more risk-averse compared to conspecifcs in the source *** together,results suggest that for this small mammal under heavy predation pressure,a careful and thorough exploration strategy might be favored when expanding into novel environments.

关键词： animal personality biological invasions exploration behavior Myodes glareolus range expansion spatial orientation.

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Exploring unconventional attributes of red blood cells and their potential applications in biomedicine

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Protein & Cell 2024年第5期15卷 315-330页

作者： Alkmini T.Anastasiadi Vasiliki-Zoi Arvaniti Krystalyn E.Hudson Anastasios G.Kriebardis Constantinos Stathopoulos Angelo D’Alessandro Steven L.Spitalnik Vassilis L.Tzounakas department of biochemistry School of MedicineUniversity of Patras26504 PatrasGreece department of Pathology and Cell Biology Columbia University Irving Medical CenterNew York CityNY 10032USA Laboratory of Reliability and Quality Control in Laboratory Hematology(HemQcR) Department of Biomedical SciencesSchool of Health&Caring SciencesUniversity of West Attica(UniWA)12243 EgaleoGreece department of biochemistry and Molecular Genetics University of Colorado Anschutz Medical Campus13001 AuroraCOUSA Present address:Institute for Fundamental Biomedical Research(IFBR) Biomedical Sciences Research Center“Alexander Fleming”Vari11527 AthensGreece

We need to talk about red blood *** cells are defined as cells containing distinct nuclei and other membranous ***,red blood cells(RBCs)lack a nucleus and organelles—perhaps to limit the generation of reactive oxygen species(Zhang et al.,2011)—and are filled with hemoglobin(Hb).This oxygen carrier is limited to the cytosol by the cell membrane and cytoskeleton,which maintain cellular integrity and deformability as RBCs pass through narrow capillaries(Gratzer,1994)to perform their primary function of gas exchange.

关键词： membranous maintain

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Neurological Disorders Caused by Structural Dysfunction of VANGL2

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Neuroscience & Medicine 2024年第2期15卷 106-117页

作者： Liheng Shen Zixiang Xu Xiaobin Xiong Xin Sheng department of biochemistry Zunyi Medical University Zunyi China

Background: VANGL2 plays a variety of roles in various cellular processes, including tissue morphogenesis, asymmetric cell division, and nervous system development. There is currently a lack of systematic organization in the development and disease of the nervous system. Purpose: To explore the role of VANGL2 in the development of the nervous system and related diseases. Methods: Literature review and analysis of the role of VANGL2 in the development and disease of the nervous system. Results: VANGL2 defects lead to the development of the nervous system through the misconfiguration of various cells, which affects the development of the cochlea, the conduction of neural signals, and the development of nervous system-related diseases such as Alzheimer’s disease, GBM, Bohling-Opitz syndrome, and hydrocephalus. Conclusions: The VANGL2 gene is essential for nervous system development and its deficiency is linked to severe congenital conditions and various disorders, highlighting the need for more research on treatments for related gene defects.

关键词： VANGL2 Neurological Disorders Planar Cell Polarity (PCP) Pathway Neural Tube Defects

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Caloric restriction,Sirtuins,and cardiovascular diseases

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Chinese Medical Journal 2024年第8期137卷 921-935页

作者： Ziyu Wei Bo Yang Huiyu Wang Shuangjie Lv Houzao Chen Depei Liu State Key Laboratory of Common Mechanism Research for Major Diseases Department of Biochemistry and Molecular BiologyInstitute of Basic Medical SciencesChinese Academy of Medical Sciences&Peking Union Medical CollegeBeijing 100005China

Caloric restriction(CR)is a well-established dietary intervention known to extend healthy lifespan and exert positive effects on aging-related diseases,including cardiovascular ***,a family of nicotinamide adenine dinucleotide(NAD^(+))-dependent histone deacetylases,have emerged as key regulators of cellular metabolism,stress responses,and the aging process,serving as energy status sensors in response to ***,the mechanism through which CR regulates Sirtuin function to ameliorate cardiovascular disease remains *** review not only provided an overview of recent research investigating the interplay between Sirtuins and CR,specifically focusing on their potential implications for cardiovascular health,but also provided a comprehensive summary of the benefits of CR for the cardiovascular system mediated directly via *** has also been shown to have considerable impact on specific metabolic organs,leading to the production of small molecules that enter systemic circulation and subsequently regulate Sirtuin activity within the cardiovascular *** direct and indirect effects of CR offer a potential mechanism for Sirtuin modulation and subsequent cardiovascular *** the interplay between CR and Sirtuins will provide new insights for the development of interventions to prevent and treat cardiovascular diseases.

关键词： Caloric restriction Sirtuins Cardiovascular diseases Healthy lifestyle Dietary

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Cisplatin-induced activation of TGF-βsignaling contributes to drug resistance

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Oncology Research 2024年第1期32卷 139-150页

作者： SAYAKA IMATSUJI YUKIKO UJIE HIROYUKI ODAKE MASAYA IMOTO SUSUMU ITOH ETSU TASHIRO department of Biosciences and Informatics Faculty of Science and TechnologyKeio UniversityYokohama223-8522Japan department of Neurology Juntendo University Graduate School of MedicineTokyo113-8421Japan Laboratory of biochemistry Showa Pharmaceutical UniversityTokyo194-8543Japan

Growing evidence suggests an association between epithelial-mesenchymal transition(EMT),a hallmark of tumor malignancy,and chemoresistance to a number of anti-cancer ***,the mechanism of EMT induction in the process of acquiring anti-cancer drug resistance remains *** address this issue,we obtained a number of cisplatin-resistant clones from LoVo cells and found that almost all of them lost cell-cell *** these clones,the epithelial marker E-cadherin was downregulated,whereas the mesenchymal marker N-cadherin was ***,the expression of EMT-related transcription factors,including Slug,was *** the other hand,the upregulation of other mesenchymal marker Vimentin was weak,suggesting that the mesenchymal-like phenotypic changes occurred in these cisplatin-resistant *** mesenchymal-like features of cisplatin-resistant clones were partially reversed to parental epithelial-like features by treatment with transforming growth factor-β(TGF-β)receptor kinase inhibitors,indicating that TGF-βsignaling is involved in cisplatin-induced the mesenchymallike phenotypic ***,cisplatin was observed to enhance the secretion of TGF-βinto the culture media without influencing TGF-βgene *** results suggest that cisplatin may induce the mesenchymal-like phenotypic changes by enhancing TGF-βsecretion,ultimately resulting in drug resistance.

关键词： Cisplatin EMT Chemo-resistance TGF-β

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Efficient scar-free knock-ins of several kilobases in plants by engineered CRISPR-Cas endonucleases

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Molecular Plant 2024年第5期17卷 824-837页

作者： Tom Schreiber Anja Prange Petra Schafer Thomas Iwen Ramona Grutzner Sylvestre Marillonnet Aurelie Lepage Marie Javelle Wyatt Paul Alain Tissier department of Cell and Metabolic Biology Leibniz Institute of Plant BiochemistryWeinberg 306120 Halle(Saale)Germany Limagrain Centre de RechercheRoute d’EnnezatCS 9012663720 ChappesFrance

In plants and mammals,non-homologous end-joining is the dominant pathway to repair DNA doublestrand breaks,making it challenging to generate knock-in *** this study,we identified two groups of exonucleases from the herpes virus and the bacteriophage T7 families that conferred an up to 38-fold increase in homology-directed repair frequencies when fused to Cas9/Cas12a in a tobacco mosaic virus-based transient assay in Nicotiana *** achieved precise and scar-free insertion of several kilobases of DNA both in transient and stable transformation *** Arabidopsis thaliana,fusion of Cas9 to a herpes virus family exonuclease led to 10-fold higher frequencies of knock-ins in the first generation of *** addition,we demonstrated stable and heritable knock-ins in wheat in 1%of the primary *** together,our results open perspectives for the routine production of heritable knock-in and gene replacement events in plants.

关键词： homology-directed repair knockin gene replacement CRISPR-Cas 50 exonuclease plants

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Unraveling the Rheology of Nanocellulose Aqueous Suspensions:A Comprehensive Study on Biomass-Derived Nanofibrillated Cellulose

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Journal of Renewable Materials 2024年第3期12卷 443-455页

作者： Mingyue Miao Fei Wang Qing Li Longchen Tao Chenchen Dai Yu Liu Shujuan Han Wenshuai Chen Ping Lu Key Laboratory of Bio-Based Material Science and Technology Ministry of EducationNortheast Forestry UniversityHarbin150040China department of Chemistry and biochemistry Rowan UniversityGlassboroNew Jersey08028USA

The rheological properties of nanocellulose aqueous suspensions play a critical role in the development of nanocellulose-based bulk ***-crystalline,high-aspect ratio,and slender nanofibrillated cellulose(NFC)were extracted from four biomass *** cellulose nanofibrils and nanofibril bundles formed inter-connected networks in the NFC aqueous *** storage moduli of the suspensions with different concentrations were higher than their corresponding loss *** the concentration increased,the storage and loss modulus of NFC dispersion *** the shear rate increased to a certain value,there were differences in the changing trend of the rheological behavior of NFC aqueous suspensions derived from different biomass resources and the suspensions with different solid *** dispersion’s storage and loss modulus increased when the temperature rose to nearly 80℃.We hope this study can deepen the understanding of the rheological properties of NFC colloids derived from different biomass resources.

关键词： Biomass resources nanofibrillated cellulose high-pressure homogenizer suspension rheology properties

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