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Deciphering the mechanobiology of microglia in traumatic brain injury with advanced microsystems

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Neural Regeneration research 2025年第8期20卷 2304-2306页

作者： Anthony Procès Sylvain Gabriele univ.Grenoble Alpes InsermU1216Grenoble Institut des NeurosciencesGrenobleFrance Mechanobiology&Biomaterials Group CIRMAPResearch Institute for BiosciencesUniversity of MonsMonsBelgium

Advanced microsystems in traumatic brain injury research:Traumatic brain injury(TBI)results from a mechanical insult to the brain,leading to neuronal and axonal damage and subsequently causing a secondary *** minutes ... 详细信息

关键词： traumatic injury damage

Central role of altered phosphodiesterase 2-dependent signaling in the pathophysiology of cognition-based brain disorders

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Neural Regeneration research 2025年第8期20卷 2302-2303页

作者： Asma Boulksibat Alessandra Tempio Barbara Bardoni Institut de Pharmacologie Moléculaire et Cellulaire CNRS UMR7275Inserm U1323ValbonneFrance

The second messengers 3',5'-cyclic adenosine monophosphate(cAMP)and 3',5'-cyclic guanosine monophosphate(cGMP)modulate molecular pathways that are involved in a large variety of cellular *** the brain,these processes include neurogenesis,neuronal differentiation,activation and function of microglia,and synaptic plasticity,finally resulting in memory formation.

关键词： formation processes finally

Decoding the nexus:branched-chain amino acids and their connection with sleep,circadian rhythms,and cardiometabolic health

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Neural Regeneration research 2025年第5期20卷 1350-1363页

作者： Hui Li Laurent Seugnet Department of Neurology Xijing HospitalXi’anShaanxi ProvinceChina Centre de Recherche en Neurosciences de Lyon Integrated Physiology of the Brain Arousal Systems(WAKING)UniversitéClaude Bernard Lyon 1INSERM U1028CNRS UMR 5292BronFrance

The sleep-wake cycle stands as an integrative process essential for sustaining optimal brain function and,either directly or indirectly,overall body health,encompassing metabolic and cardiovascular *** the heightened metabolic activity of the brain,there exists a considerable demand for nutrients in comparison to other *** these,the branched-chain amino acids,comprising leucine,isoleucine,and valine,display distinctive significance,from their contribution to protein structure to their involvement in overall metabolism,especially in cerebral *** the first amino acids that are released into circulation post-food intake,branched-chain amino acids assume a pivotal role in the regulation of protein synthesis,modulating insulin secretion and the amino acid sensing pathway of target of ***-chain amino acids are key players in influencing the brain's uptake of monoamine precursors,competing for a shared *** their involvement in protein synthesis,these amino acids contribute to the metabolic cycles ofγ-aminobutyric acid and glutamate,as well as energy ***,they impact GABAergic neurons and the excitation/inhibition *** rhythmicity of branchedchain amino acids in plasma concentrations,observed over a 24-hour cycle and conserved in rodent models,is under circadian clock *** mechanisms underlying those rhythms and the physiological consequences of their disruption are not fully *** sleep,obesity,diabetes,and cardiovascular diseases can elevate branched-chain amino acid concentrations or modify their oscillatory *** mechanisms driving these effects are currently the focal point of ongoing research efforts,since normalizing branched-chain amino acid levels has the ability to alleviate the severity of these *** this context,the Drosophila model,though underutilized,holds promise in shedding new light on these *** findings indicate its po

关键词： branched-chain amino acids cardiovascular health circadian clock drosophila insulin metabolism sleep γ-aminobutyric acid

Biomarkers of cetuximab resistance in patients with head and neck squamous cell carcinoma

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Cancer Biology & Medicine 2020年第1期17卷 208-217页

作者： Olivia Leblanc Sophie Vacher Charlotte Lecerf Emmanuelle Jeannot Jerzy Klijanienko Frederique Berger Caroline Hoffmann Valentin Calugaru Nathalie Badois Anne Chilles Maria Lesnik Samar Krhili IvanBieche Christophe Le Tourneau Maud Kamal Department of Genetics Curie InstitutePSL Research UniversityParis 75005France Department of Drug Development and Innovation(D3i) Curie InstitutePSL Research UniversityParis 75005France Department of Pathology Curie InstitutePSL Research UniversityParis 75005France Department of Biostatistics Curie InstitutePSL Research UniversityParis 75005France Department of Surgery Curie InstitutePSL Research UniversityParis 75005France inserm u932 research unit Paris 75005France Department of Radiotherapy Curie InstitutePSL Research UniversityParis 75005France EA7331 Faculty of Pharmaceutical and Biological SciencesParis Descartes UniversityParis 75005France inserm u900 research unit Curie InstituteParis 75005France

Objective:In patients with head and neck squamous cell carcinoma(HNSCC),cetuximab[a monoclonal antibody targeting epidermal growth factor receptor(EGFR)]has been shown to improve overall survival when combined with radiotherapy in the locally advanced setting or with chemotherapy in first-line recurrent and/or metastatic(R/M)setting,*** biomarkers of resistance to cetuximab have been identified in metastatic colorectal cancer,no biomarkers of efficacy have been identified in ***,we aimed to identify biomarkers of cetuximab sensitivity/resistance in ***:HNSCC patients treated with cetuximab at the Curie Institute,for whom complete clinicopathological data and formalin-fixed paraffin-embedded(FFPE)tumor tissue collected before cetuximab treatment were available,were *** analyses of PTEN and EGFR were performed to assess protein expression ***3 CA and H/N/KRAS mutations were analyzed using high-resolution melting(HRM)and Sanger *** evaluated the predictive value of these alterations in terms of progression-free survival(PFS).Results:Hot spot activating PIK3 CA and KRAS/HRAS mutations were associated with poor PFS among HNSCC patients treated with cetuximab in the first-line R/M setting,but not among HNSCC patients treated with cetuximab in combination with *** of PTEN protein expression had a negative predictive value among HNSCC patients treated with cetuximab and *** EGFR expression did not predict cetuximab sensitivity in our patient ***:Hot spot activating PIK3 CA and RAS mutations predicted cetuximab resistance among HNSCC patients in the firstline R/M setting,whereas loss of PTEN protein expression predicted resistance to cetuximab when combined to radiotherapy.

关键词： Head and neck squamous cell carcinoma cetuximab biomarker PIK3CA RAS

Crosstalk between androgen signaling and the chemokine receptor CXCR4:a novel strategy to promote myelin regeneration

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Neural Regeneration research 2025年第9期20卷 2581-2582页

作者： Marianne Bardy-Lagarde Narimène Asbelaoui Abdel Mouman Ghoumari uMR1195 “Diseases and Hormones of the Nervous System”Inserm and University Paris-SaclayKremlin-BicêtreFrance

Multiple sclerosis(MS)is the most common chronic disease of the central nervous system(CNS)in young adults and represents the first cause of severe handicap,originally non-traumatic(Oh et al.,2018).MS is chara cterized by the infiltration of auto reactive lymphocytes specific to myelin through the blood-brain barrier,which results in the appearance of inflammatory demyelinating lesions caused by the death of the central nervous system myelinating cells,oligodendrocytes(Oh et al.,2018).There is a prevalence sexual with a ratio of three times more affected women than men.

关键词： myelin CXCR4

use of longitudinal magnetic resonance imaging in preclinical models of spinal cord injury

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Neural Regeneration research 2019年第5期14卷 771-772页

作者： Harun Najib Noristani Florence Evelyne Perrin inserm u1198 University of Montpellier

Spinal cord injury(SCI)is a distressing event with grave socio/economic consequences to our *** response following SCI involves blood-spinal cord barrier breakdown,neuroinflammation and formation of a glial scar that altogether govern the feasibility of spontaneous axonal re-growth and limited functional *** advances in understanding SCI pathophysiology have been achieved using numerous transgenic mouse lines developed in different ***,there are inherent strain differences that affect inflammation,gliosis,axon regeneration and ultimately functional recovery after SCI.

关键词： Spinal cord injury(SCI) spinal cord injury

Reproducing indolent B-cell lymphoma transformation with T-cell immunosuppression in LMP1/CD40-expressing mice

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Cellular & Molecular Immunology 2019年第4期16卷 412-414页

作者： Christelle Vincent-Fabert Alexis Saintamand Amandine David Mehdi Alizadeh François Boyer Nicolas Arnaud ursula Zimber-Strobl Jean Feuillard Nathalie Faumont CNRS-uMR 7276 inserm u1262 CRIBL University of Limogesand Hematology Laboratory of Dupuytren Hospital University Center(CHU)of LimogesLimogesFrance inserm u917 University of Rennes 1RennesFrance LNPRM EFS BretagneRennesFrance research unit Gene Vectors Helmholtz Center MunichGerman Research Center for Environmental Health GmbHMunichGermany

Indolent B-cell lymphomas are a group of incurable cancers of the elderly that encompass various entities,such as chronic lymphocytic leukemia(CLL),follicular lymphoma(FL),and marginal zone lymphoma(MZL).All indolent lymphomas may evolve towards aggressive transformation with an increased proliferation index and decreased tumor doubling *** transformation,which is called Richter’s syndrome in CLL,is associated with an aggressive clinical course and poor *** least in CLL,transformation of an indolent B-cell clone is molecularly different from that of de novo diffuse large B-cell lymphomas.1 Aging is known to be associated with immune decline,with increased inflammation,decreased immune surveillance and increased onset of malignancies among the consequences.2 Progression of indolent B-cell lymphomas is likely to be associated with escape from immune surveillance.

关键词： lymphoma Richter transformation

Tale of mitochondria and mitochondria-associated ER membrane in patient-derived neuronal models of Wolfram syndrome

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Neural Regeneration research 2025年第9期20卷 2587-2588页

作者： Laetitia Aubry Timothy Barrett Sovan Sarkar I-STEM CECSCorbeil-EssonnesFrance universitéParis-Saclay Universitéd’EvryINSERMI-STEMUMR861Corbeil-EssonnesFrance Institute of Cancer and Genomic Sciences Institute of Biomedical ResearchCollege of Medical and Dental SciencesUniversity of BirminghamEdgbastonBirminghamUK Department of Endocrinology Birmingham Women’s and Children’s HospitalSteelhouse LaneBirminghamUK

Mitochondria and mitochondria-associated endoplasmic reticulum membrane in neurodegenerative diseases:Mitochondria generate most of the chemical energy needed to power the biochemical reactions of cells,and thus are often referred to as the"powerhouse"of the ***,this organelle is also involved in a pleth,ora of different cellular functions such as calcium(Ca^(2+))homeostasis,apoptosis,oxidative stress,and several metabolic pathways including oxidative phosphorylation,tricarboxylic acid cycle,andβ-oxidation of fatty acids.

关键词： oxidative cycle carboxylic

Telencephalic stab wound injury induces regenerative angiogenesis and neurogenesis in zebrafish:unveiling the role of vascular endothelial growth factor signaling and microglia

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Neural Regeneration research 2025年第10期20卷 2938-2954页

作者： Danielle Fernezelian Philippe Rondeau Laura Gence Nicolas Diotel universitéde La Réunion INSERMUMR 1188Diabète athérothrombose Thérapies Réunion Océan Indien(DéTROI)Saint PierreLa RéunionFrance

After brain damage,regenerative angiogenesis and neurogenesis have been shown to occur simultaneously in mammals,suggesting a close link between these ***,the mechanisms by which these processes interact are not well *** this work,we aimed to study the correlation between angiogenesis and neurogenesis after a telencephalic stab wound *** this end,we used zebrafish as a relevant model of neuroplasticity and brain repair ***,using the Tg(fli1:EGFP×mpeg1.1:mCherry)zebrafish line,which enables visualization of blood vessels and microglia respectively,we analyzed regenerative angiogenesis from 1 to 21 days *** parallel,we monitored brain cell proliferation in neurogenic niches localized in the ventricular zone by using *** found that after brain damage,the blood vessel area and width as well as expression of the fli1 transgene and vascular endothelial growth factor(vegfaa and vegfbb)were *** the same time,neural stem cell proliferation was also increased,peaking between 3 and 5 days post-lesion in a manner similar to angiogenesis,along with the recruitment of ***,through pharmacological manipulation by injecting an anti-angiogenic drug(Tivozanib)or Vegf at the lesion site,we demonstrated that blocking or activating Vegf signaling modulated both angiogenic and neurogenic processes,as well as microglial ***,we showed that inhibition of microglia by clodronate-containing liposome injection or dexamethasone treatment impairs regenerative neurogenesis,as previously described,as well as injury-induced *** conclusion,we have described regenerative angiogenesis in zebrafish for the first time and have highlighted the role of inflammation in this *** addition,we have shown that both angiogenesis and neurogenesis are involved in brain repair and that microglia and inflammation-dependent mechanisms activated by Vegf signaling are important contributors to

关键词： angiogenesis cerebral damage inflammation neurogenesis stab wound telencephalon vascular endothelial growth factor zebrafish