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A multi-platform analysis of human gingival crevicular fluid reveals ferroptosis as a relevant regulated cell death mechanism during the clinical progression of periodontitis

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International Journal of Oral Science 2024年第2期16卷 265-279页

作者： Alfredo Torres M.Angélica Michea Ákos Végvári Marion Arce Valentina Pérez Marcela Alcota Alicia Morales Rolando Vernal Mauricio Budini Roman A.Zubarev Fermín E.González Laboratory of Experimental Immunology&Cancer Faculty of DentistryUniversity of ChileSantiagoChile Department of Conservative Dentistry Faculty of DentistryUniversity of ChileSantiagoChile division of Chemistry I Department of Medical Biochemistry and BiophysicsKarolinska InstitutetStockholmSweden Periodontal biology Laboratory Faculty of DentistryUniversidad de ChileSantiagoChile Laboratory of Cellular and Molecular Pathology Institute for Research in Dental SciencesFaculty of DentistryUniversity of ChileSantiagoChile

Ferroptosis is implicated in the pathogenesis of numerous chronic-inflammatory diseases,yet its association with progressive periodontitis remains *** investigate the involvement and significance of ferroptosis in periodontitis progression,we assessed sixteen periodontitis-diagnosed *** progression was clinically monitored over twelve weeks via weekly clinical evaluations and gingival crevicular fluid(GCF)collection was performed for further *** metrics,proteomic data,in silico methods,and bioinformatics tools were combined to identify protein profiles linked to periodontitis progression and to explore their potential connection with *** western blot analyses validated key ***,a single-cell RNA sequencing(scRNA-seq)dataset(GSE164241)for gingival tissues was analyzed to elucidate cellular dynamics during periodontitis *** progression was identified as occurring at a faster rate than traditionally *** samples from progressing and non-progressing periodontal sites showed quantitative and qualitatively distinct proteomic *** addition,specific biological processes and molecular functions during progressive periodontitis were revealed and a set of hub proteins,including SNCA,CA1,HBB,SLC4A1,and ANK1 was strongly associated with the clinical progression status of ***,we found specific proteins-drivers or suppressors-associated with ferroptosis(SNCA,FTH1,HSPB1,CD44,and GCLC),revealing the co-occurrence of this specific type of regulated cell death during the clinical progression of ***,the integration of quantitative proteomic data with scRNA-seq analysis suggested the susceptibility of fibroblasts to *** analyses reveal proteins and processes linked to ferroptosis for the first time in periodontal patients,which offer new insights into the molecular mechanisms of progressive periodontal *** findings may le

关键词： finding progression faster

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Pandemic punch:SARS-CoV-2 hits pancreas

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Signal Transduction and Targeted Therapy 2024年第5期9卷 1779-1780页

作者： Ninel Azoitei Sandra Heller Alexander Kleger Institute of Molecular Oncology and Stem Cell biology Ulm UniversityUlmGermany division of Interdisciplinary Pancreatology Clinic of Internal Medicine IUniversity Hospital UlmUlmGermany

The COVID-19 pandemic has profoundly impacted global health systems,revealing the extensive repercussions of SARS-CoV-2 beyond respiratory ***,traditionally considered a respiratory virus,SARS-CoV-2’s showcased the ability to target multiple organ systems including pancreas,an organ crucial for regulating blood sugar levels and aiding digestion.

关键词： pancreas respiratory traditionally

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Wharton’s jelly mesenchymal stem cells: Future regenerative medicine for clinical applications in mitigation of radiation injury

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World Journal of Stem Cells 2024年第7期16卷 742-759页

作者： Prashasti Sharma Dharmendra Kumar Maurya Life Sciences Homi Bhabha National InstituteMumbai 400094MaharashtraIndia Radiation biology&Health Sciences division Bhabha Atomic Research CentreMumbai 400085MaharashtraIndia

Wharton’s jelly mesenchymal stem cells(WJ-MSCs)are gaining significant attention in regenerative medicine for their potential to treat degenerative diseases and mitigate radiation ***-MSCs are more naïve and have a better safety profile,making them suitable for both autologous and allogeneic *** review highlights the regenerative potential of WJ-MSCs and their clinical applications in mitigating various types of radiation *** this review,we will also describe why WJ-MSCs will become one of the most probable stem cells for future regenerative medicine along with a balanced view on their strengths and ***,the most updated literature related to both preclinical and clinical usage of WJ-MSCs for their potential application in the regeneration of tissues and organs will also be compiled.

关键词： Stem cells Wharton’s jelly mesenchymal stem cells Radiotherapy Xerostomia Lung fibrosis

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On breakthroughs and limits: Resolving structural fine-tuning of photosynthetic supercomplexes

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Molecular Plant 2024年第2期17卷 224-226页

作者： Eunchul Kim Marcel Dann division of Environmental Photobiology National Institute for Basic BiologySOKENDAlOkazaki 444-8585Japan Department of Basic biology The Graduate University for Advanced StudiesSOKENDAlOkazaki 444-8585Japan Bio-Inspired Energy Conversion Technical University of DarmstadtSchnittspahnstraBe 1064287 DarmstadtGermany

Dynamic regulation of photosynthetic supercomplexes is a key strategy allowing plants to adjust their light-harvesting system in response to varying environmental light conditions(Bassi and Dall'Osto,2021).State transition(i.e.,acclimative re-distribution of peripheral antennae between photosystems[PSs]I and II)is one such regulation mechanism that maintains excitation balance between PSl and PSll.

关键词： complexes breakthrough maintain

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Cancer-associated fibroblasts express CD1d and activate invariant natural killer T cells under cellular stress

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Cellular & Molecular Immunology 2024年第1期21卷 91-94页

作者： Shengduo Pei Jonas Sjölund Yueyun Pan Kristian Pietras Mikael C.I.Karlsson Department of Microbiology Tumor and Cell BiologyKarolinska InstitutetStockholmSweden division of Translational Cancer Research Department of Laboratory MedicineLund University Cancer CentreLund UniversityLundSweden

Invariant natural killer T(iNKT)cells are part of the family of unconventional T cells,and they recognize glycolipid antigens presented on the MHC class I like molecule CD1^([1]).In humans there are five CD1 molecules named CD1a to CD1e,whereas mice use only CD1d for lipid ***,iNKT cells can elicit both cytotoxicity similarly to conventional CD8 T cells and secrete cytokines that influence the adaptive immune response including providing direct T cell help to B cells^([2]).In the context of tumors,they can use both release of granzyme B and use Fas-mediated mechanisms for killing of tumor *** iNKT cells use a restricted TCR repertoire and CD1 molecules are non-heterogenous the risk of graft vs host disease is limited and thus these T cells have been an attractive option for off the shelf immunotherapy to treat cancer^([3]).

关键词： killer CD1d Cancer

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Unveiling the anticancer effect of traditional Chinese herbal medicine

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World Journal of Gastroenterology 2024年第30期30卷 3625-3627页

作者： Naoki Asano division of Carcinogenesis and Senescence biology Tohoku University Graduate School of MedicineNatori 981-1293MiyagiJapan division of Cancer Stem Cell Miyagi Cancer Center Research InstituteNatori 981-1293MiyagiJapan

In this issue of World Journal of Gastroenterology,Huang et al reported that Calculus bovis(CB),a traditional Chinese herbal medicine,impedes the growth of liver cancers in *** further in vitro studies,they showed that CB suppressed the M2 polarization of tumor-associated macrophages by suppressing the Wnt signaling pathway,which consequently inhibited the growth of liver *** the effects of traditional Chinese herbal medicine are often not scientifically proven,Huang et al successfully identified the molecular mechanism involved in the anticancer effect of CB,and it is anticipated that the molecular mechanisms involved in the effects of other traditional Chinese herbal medicines will be scientifically elucidated,as demonstrated in this article.

关键词： Calculus bovis Chinese herbal medicine Wnt Hepatocellular carcinoma Liver cancer Tumor-associated macrophages M2 polarization

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Unveiling the distinctive traits of functional rye centromeres:minisatellites, retrotransposons, and R-loop formation

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Science China Life Sciences 2024年第9期67卷 1989-2002页

作者： Chang Liu Shulan Fu Congyang Yi Yang Liu Yuhong Huang Xianrui Guo Kaibiao Zhang Qian Liu James A.Birchler Fangpu Han State Key Laboratory of Plant Cell and Chromosome Engineering Institute of Genetics and Developmental Biology Chinese Academy of Sciences University of Chinese Academy of Sciences Key Laboratory for Plant Genetics and Breeding Sichuan Agricultural University division of Biological Science University of Missouri

Centromeres play a vital role in cellular division by facilitating kinetochore assembly and spindle attachments. Despite their conserved functionality, centromeric DNA sequences exhibit rapid evolution, presenting diverse sizes and compositions across species. The functional significance of rye centromeric DNA sequences, particularly in centromere identity, remains unclear. In this study, we comprehensively characterized the sequence composition and organization of rye centromeres. Our findings revealed that these centromeres are primarily composed of long terminal repeat retrotransposons(LTR-RTs) and interspersed minisatellites. We systematically classified LTR-RTs into five categories, highlighting the prevalence of younger CRS1, CRS2, and CRS3 of CRSs(centromeric retrotransposons of Secale cereale) were primarily located in the core centromeres and exhibited a higher association with CENH3 nucleosomes. The minisatellites, mainly derived from retrotransposons, along with CRSs, played a pivotal role in establishing functional centromeres in rye. Additionally, we observed the formation of R-loops at specific regions of CRS1, CRS2, and CRS3, with both rye pericentromeres and centromeres exhibiting enrichment in R-loops. Notably, these R-loops selectively formed at binding regions of the CENH3 nucleosome in rye centromeres, suggesting a potential role in mediating the precise loading of CENH3 to centromeres and contributing to centromere specification. Our work provides insights into the DNA sequence composition, distribution, and potential function of R-loops in rye centromeres. This knowledge contributes valuable information to understanding the genetics and epigenetics of rye centromeres, offering implications for the development of synthetic centromeres in future plant modifications and beyond.

关键词： centromere LTR-RTs minisatellite rye R-loop

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Carbene chemistry for unnatural biosynthesis

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Science China(Life Sciences) 2024年第1期67卷 204-207页

作者： Jing Huang Jay D.Keasling Department of Chemical and Biomolecular Engineering University of CaliforniaBerkeley 94720USA Joint BioEnergy Institute Lawrence Berkeley National LaboratoryEmeryville 94608USA Biological Systems and Engineering division Lawrence Berkeley National LaboratoryBerkeley 94720USA Novo Nordisk Foundation Center for Biosustainability Technical University of DenmarkKongens Lyngby 2800Denmark Department of Bioengineering University of CaliforniaBerkeley 94720USA Synthetic biochemistry Center Institute for Synthetic BiologyShenzhen Institutes for Advanced TechnologiesShenzhen 518055China

Previously,chemists working in synthesis were jealous of biologists since the enzymes found in nature usually exhibited great catalytic properties(e.g.,high catalytic efficiency,excellent selectivity such as substrate selectivity,regioselectivity and stereoselectivity).However,biological systems lack many counterparts of reactions widely used in chemical synthesis.

关键词： synthesis selectivity catalytic

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Metabologenomics and network pharmacology to understand the molecular mechanism of cancer research

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World Journal of Clinical Cases 2024年第3期12卷 474-478页

作者： Yusuf Tutar Department of Basic Pharmaceutical Sciences Faculty of PharmacyDivision of BiochemistryUniversity of Health SciencesIstanbul 34668Turkey Health Sciences Faculty Recep Tayyip Erdogan UniversityRize 53350Turkey Molecular Oncology division Health Sciences InstitutesUniversity of Health SciencesIstanbul 34668Turkey Molecular Medicine division Health Sciences InstitutesUniversity of Health SciencesIstanbul 34668Turkey

In this editorial I comment on the article“Network pharmacological and molecular docking study of the effect of Liu-Wei-Bu-Qi capsule on lung cancer”published in the recent issue of the World Journal of Clinical Cases 2023 November 6;11(31):*** all living forms are able to manufacture particular chemicals-metabolites that enable them to differentiate themselves from one another and to overcome the unique obstacles they encounter in their natural *** methods for chemical warfare,communication,nutrition acquisition,and stress prevention are made possible by these specialized *** is a popular technique for collecting direct mea-surements of metabolic activity from many biological ***,con-fusing metabolite identification is a typical issue,and biochemical interpretation is frequently constrained by imprecise and erroneous genome-based estimates of enzyme *** annotation and gene integration uses a biochemical reaction network to obtain a metabolite-gene association so called *** network uses an approach that emphasizes metabolite-gene consensus via biochemical *** metabolomics and genomics data is ***,computer networking proposes that using meta-bolomics data may improve annotations in sequenced species and provide testable hypotheses for specific biochemical *** The genome and metabolites of biological organisms are not fully characterized with current ***,increasing high-throughput metabolomics and genomics data provide promising generation of paired data sets to understand the molecular mechanism of biochemical processes as well as determining targets for pharmaceutical drug *** network infrastructures to integrate omics analysis can provide molecular mechanism of biochemical ***,clinical data may be integrated to gene expression–metabolite expression by system genetics appr

关键词： Network pharmacology Metabologenomics Genome Pathways Cancer

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Odor cues rather than personality affect tadpole deposition in a neotropical poison frog

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Current Zoology 2024年第3期70卷 332-342页

作者： Melissa Peignier Max Ringler Eva Ringler division of Behavioural Ecology Institute of Ecology and EvolutionUniversity of BernCH-3032 HinterkappelenSwitzerland Messerli Research Institute University of Veterinary Medicine Vienna1210 ViennaAustria Department of Behavioral and Cognitive biology University of Vienna1030 ViennaAustria Departmento f Evolutionary biology UniversityofVienna1030ViennaAustria lnstitute of Electronic Music and Acoustics University of Music and Performing Arts Graz8010 GrazAustria

Animals constantly need to evaluate available external and internal information to make appropriate ***,assessing,and acting on relevant cues in contexts such as mate choice,intra-sexual competition,and parental care is particularly important for optimizing individual reproductive *** factors can infuence decision-making,such as external environmental cues and the animal’s own internal state,yet,we have limited knowledge on how animals integrate available ***,we used an entire island population(57 males,53 females,and 1,109 tadpoles)of the neotropical brilliant-thighed poison frog Allobates femoralis to investigate how 2 factors(olfactory cues and personality traits)infuence the ability of males to fnd and use new resources for tadpole *** experimentally manipulated the location of tadpole deposition sites and their associated olfactory cues,and repeatedly measured exploration and boldness in adult *** further reconstructed tadpole deposition choices via inferred parent–offspring relationships of adult frogs and tadpoles deposited in our experimental pools using molecular parentage *** found that the discovery and use of new rearing sites were heavily infuenced by olfactory cues;however,we did not fnd an effect of the measured behavioral traits on resource discovery and *** conclude that in highly dynamic environments such as tropical rainforests,reliable external cues likely take priority over personality traits,helping individuals to discover and make use of reproductive resources.

关键词： animal personality Anura decision-making parental care tadpole transport.

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