299 results match your criteria: "Institute Pasteur of Shanghai[Affiliation]"

Peripheral Lymphocyte Changes Associate With the Progression of Necrotizing Enterocolitis in Infants.

J Surg Res

September 2024

Department of Pediatric Surgery, Children's Hospital of Fudan University, Shanghai Key Laboratory of Birth Defect, Shanghai, China. Electronic address:

Introduction: Immune factors are important antecedents in the pathophysiology of necrotizing enterocolitis (NEC). However, studies on the peripheral blood lymphocyte subsets changes in NEC patients among different Bell stages and in patients requiring surgery are scarce.

Methods: 34 infants with NEC and 33 age-matched controls were included.

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Mycobacterial CpsA activates type I IFN signaling in macrophages via cGAS-mediated pathway.

iScience

May 2024

Key Laboratory of Medical Molecular Virology (MOE/NHC/CAMS), School of Basic Medical Sciences, Shanghai Medical College, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China.

Type I interferon (IFN) production is crucial in tuberculosis pathogenesis, yet the bacterial factors initiating this process are incompletely understood. CpsA, protein of , plays a key role in maintaining bacterial virulence and inhibiting host cell LC3-associated phagocytosis. By utilizing CpsA full deletion mutant studies, we re-verified its essential role in infection-induced pathology and revealed its new role in type I IFN expression.

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Background: Bladder cancer (BC), a prevalent malignancy in the urinary system, often poses challenges for effective treatment. Immunotherapy, harnessing the immune system, has exhibited promise in early-stage clinical trials. Mucosal associated invariant T (MAIT) cells, a subset of immune cells implicated in various diseases, including certain cancer, have yet to be explored in BC patients.

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Primary glioblastoma(pGBM) is the most malignant tumor of the central nervous system. Radiotherapy, chemotherapy and surgical treatment have little effect on the survival of pGBM patients. The prognosis is often poorly once the tumor recurs.

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CD14 facilitates perinatal human cytomegalovirus infection in biliary epithelial cells via CD55.

JHEP Rep

May 2024

Provincial Key Laboratory of Research in Structure Birth Defect Disease and Department of Pediatric Surgery, Guangdong Provincial Clinical Research Center for Child Health, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China.

Background & Aims: A high human cytomegalovirus (HCMV) infection rate accompanied by an increased level of bile duct damage is observed in the perinatal period. The possible mechanism was investigated.

Methods: A total of 1,120 HCMV-positive and 9,297 HCMV-negative children were recruited, and depending on age, their liver biochemistry profile was compared.

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Uterine Commensal Species Contribute to IDO1 Induction in Endometrial Cancer via Indoleacrylic Acid.

Biomedicines

March 2024

Department of Gynecology and Obstetrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, China.

Article Synopsis
  • The study explores how disruptions in the cervicovaginal microbiome, particularly through the production of indoleacrylic acid (IAA), influence the development of gynecological cancers like endometrial cancer (EC).
  • Researchers found that IAA production from certain bacterial species can promote tumor growth and affect immune cell dynamics in both patients and mouse models.
  • The results indicate a connection between higher levels of IAA, increased IDO1 expression, and altered immune responses, suggesting that certain bacterial species may contribute to immune tolerance in endometrial cancer.
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Photothermal therapy (PTT), which utilizes nanomaterials to harvest laser energy and convert it into heat to ablate tumor cells, has been rapidly developed for lung tumor treatment, but most of the PTT-related nanomaterials are not degradable, and the immune response associated with PTT is unclear, which leads to unsatisfactory results of the actual PTT. Herein, we rationally designed and prepared a manganese ion-doped polydopamine nanomaterial (MnPDA) for immune-activated PTT with high efficiency. Firstly, MnPDA exhibited 57.

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Ixekizumab-induced urticaria is associated with the short duration of remission in psoriasis by activation of mast cells.

J Am Acad Dermatol

May 2024

Laboratory of Dermatoimmunology, Rui Jin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China. Electronic address:

Background: Mast cell degranulation plays a pivotal role in urticaria and is also an early histologic characteristic of psoriasis. However, whether the activation of mast cells contributes to psoriasis recurrence after discontinuation of interleukin (IL)-17A blockers remains unclear.

Objective: To investigate the role of mast cells in ixekizumab treatment-associated urticaria (ITAUR) and assess the effect of urticaria eruption on psoriasis relapse.

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Spatiotemporal observations of host-pathogen interactions in mucosa during SARS-CoV-2 infection indicate a protective role of ILC2s.

Microbiol Spectr

December 2023

Department of Emergency Medicine, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, National Medical Center for Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China.

Article Synopsis
  • The study shows how humanized ACE2 interacts with a pseudovirus that has Spike proteins, highlighting the importance of type 2 innate lymphoid cells in the early stages of viral infection.
  • These results are crucial for creating mucosal vaccines, which target infection prevention right at the entry points of the virus.
  • This research also suggests potential new treatment methods for managing COVID-19 both before and after infection.
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Almost all Glioblastoma (GBM) are either intrinsically resistant to the chemotherapeutical drug temozolomide (TMZ) or acquire therapy-induced mutations that cause chemoresistance and recurrence. The genome maintenance mechanisms responsible for GBM chemoresistance and hypermutation are unknown. We show that the E3 ubiquitin ligase RAD18 (a proximal regulator of TLS) is activated in a Mismatch repair (MMR)-dependent manner in TMZ-treated GBM cells, promoting post-replicative gap-filling and survival.

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Almost all Glioblastoma (GBM) are either intrinsically resistant to the chemotherapeutical drug temozolomide (TMZ) or acquire therapy-induced mutations that cause chemoresistance and recurrence. The genome maintenance mechanisms responsible for GBM chemoresistance and hypermutation are unknown. We show that the E3 ubiquitin ligase RAD18 (a proximal regulator of TLS) is activated in a Mismatch repair (MMR)-dependent manner in TMZ-treated GBM cells, promoting post-replicative gap-filling and survival.

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HIV-1 infection of target cells can occur through either cell-free virions or cell-cell transmission in a virological synapse, with the latter mechanism of infection reported to be 100- to 1,000-fold more efficient. Neutralizing antibodies and entry inhibitors effectively block cell-free HIV-1, but with few exceptions, they display much less inhibitory activity against cell-mediated HIV-1 transmission. Previously, we showed that engineering HIV-1 target cells by genetically linking single-chain variable fragments (scFvs) of antibodies to glycosyl phosphatidylinositol (GPI) potently blocks infection by cell-free virions and cell-mediated infection by immature dendritic cell (iDC)-captured HIV-1.

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Comprehensive landscape and future perspective of long noncoding RNAs in non-small cell lung cancer: it takes a village.

Mol Ther

December 2023

Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China; Cancer Center, Zhongshan Hospital, Fudan University, Shanghai, China. Electronic address:

Long noncoding RNAs (lncRNAs) are a distinct subtype of RNA that lack protein-coding capacity but exert significant influence on various cellular processes. In non-small cell lung cancer (NSCLC), dysregulated lncRNAs act as either oncogenes or tumor suppressors, contributing to tumorigenesis and tumor progression. LncRNAs directly modulate gene expression, act as competitive endogenous RNAs by interacting with microRNAs or proteins, and associate with RNA binding proteins.

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CBX4 deletion promotes tumorigenesis under Kras background by inducing genomic instability.

Signal Transduct Target Ther

September 2023

Department of Human Anatomy and Histoembryology, School of Basic Medical Sciences and Shanghai Xuhui Central Hospital, Shanghai Medical College, Fudan University, Shanghai, 200030, China.

Article Synopsis
  • CBX4 is part of the Polycomb group proteins involved in various biological processes, but its deletion can have contrasting effects depending on the tissue type and disease context.
  • This study shows that deleting CBX4 in lung adenocarcinoma (LUAD) with Kras mutations accelerates cancer cell growth and progression, with significant apoptosis occurring in the initial stages of cell transformation.
  • Analysis revealed that CBX4 deletion leads to genomic instability and changes in key cellular pathways, linking low CBX4 expression to poorer patient outcomes in LUAD, highlighting its potential as a therapeutic target.
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Metagenomics revealed a correlation of gut phageome with autism spectrum disorder.

Gut Pathog

August 2023

Center for Microbes, Development, and Health (CMDH), Institute Pasteur of Shanghai/Chinese Academy of Sciences, Life Science Research Building, 320 Yueyang Road, Xuhui District, Shanghai, 200031, China.

The human gut bacteriome is believed to have pivotal influences on human health and disease while the particular roles associated with the gut phageome have not been fully characterized yet with few exceptions. It is argued that gut microbiota can have a potential role in autism spectrum disorders (ASD). The public microbiota database of ASD and typically developing (TD) Chinese individuals were analyzed for phage protein-coding units (pPCU) to find any link between the phageome and ASD.

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We conducted a global-scale study to identify antimicrobial-resistant genes (ARG), address their global distribution, and understand their effect on the antimicrobial resistance (AMR) phenotypes of the clinical isolates. We identified ARG using several well-known tools against extensive bacterial ARG databases, then analyzed their correlation with clinical antibiogram data from dozens of patients across countries. This revealed that combining multiple tools and databases, followed by manual selection of ARG from the annotation results, produces more conclusive results than using a single tool or database alone.

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SARS-CoV-2 nonstructural protein 6 triggers endoplasmic reticulum stress-induced autophagy to degrade STING1.

Autophagy

December 2023

CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China.

aa: amino acid; ATF6: activating transcription factor 6; ATG5: autophagy related 5; CCPG1: cell cycle progression 1; CFTR: CF transmembrane conductance regulator; cGAMP: cyclic GMP-AMP; CGAS: cyclic GMP-AMP synthase; CHX: cycloheximide; Co-IP: co-immunoprecipitation; CQ: chloroquine; EIF2A/eIF2α: eukaryotic translation initiation factor 2A; EIF2AK3/PERK: eukaryotic translation initiation factor 2 alpha kinase 3; ER: endoplasmic reticulum; ERN1/IRE1: endoplasmic reticulum to nucleus signaling 1; GFP: green fluorescent protein; HSPA5/GRP78: heat shock protein family A (Hsp70) member 5; HSV-1: herpes simplex virus type 1; IFIT1: interferon induced protein with tetratricopeptide repeats 1; IFNB1/IFN-β: interferon beta 1; IRF3: interferon regulatory factor 3; ISG15: ISG15 ubiquitin like modifier; MAP1LC3B/LC3B: microtubule associated protein 1 light chain 3 beta; MAP3K7/TAK1: mitogen-activated protein kinase kinase kinase 7; MAVS: mitochondrial antiviral signaling protein; MOI: multiplicity of infection; NFKB/NF-κB: nuclear factor kappa B; NSP6: non-structural protein 6; Δ106-108: deletion of amino acids 106-108 in NSP6 of SARS-CoV-2; Δ105-107: deletion of amino acids 105-107 in NSP6 of SARS-CoV-2; RETREG1/FAM134B: reticulophagy regulator 1; RIGI/DDX58: RNA sensor RIG-I; SQSTM1/p62: sequestosome 1; STING1: stimulator of interferon response cGAMP interactor 1; TBK1: TANK binding kinase 1.

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PTRF-IL33-ZBP1 signaling mediating macrophage necroptosis contributes to HDM-induced airway inflammation.

Cell Death Dis

July 2023

Unit of Respiratory Infection and Immunity, Institute Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China.

Polymerase 1 and transcript release factor (PTRF, encoding by Cavin-1) regulates interleukin 33 (IL-33) release, which is implicated in asthma development. Z-DNA binding protein 1 (ZBP1)-sensing Z-RNAs induces necroptosis which causes inflammatory diseases. House dust mite (HDM) is the major source of allergen in house dust and is strongly associated with the development of asthma.

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COVID-19 has posed unprecedented challenges to global public health since its outbreak. The Qing-Fei-Pai-Du decoction (QFPDD), a Chinese herbal formula, is widely used in China to treat COVID-19. It exerts an impressive therapeutic effect by inhibiting the progression from mild to critical disease in the clinic.

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Emergence of chromosomally located bla and qnrS1 in Salmonella enterica serotype Kentucky ST198 in China.

Int J Antimicrob Agents

September 2023

School of Public Health, Shanxi Medical University, Taiyuan, China; Shenzhen Center for Disease Control and Prevention, Shenzhen, China; Shenzhen Research Center for Communicable Disease Control and Prevention, Chinese Academy of Medical Sciences, Shenzhen, China. Electronic address:

Article Synopsis
  • Highly fluoroquinolone-resistant Salmonella enterica serotype Kentucky, particularly sequence type 198 (ST198), is spreading and contributing to multidrug resistance.
  • This study examined strains of Salmonella Kentucky ST198 found in Shenzhen, China, from 2010 to 2021, using genomic sequencing to understand their resistance profiles.
  • Out of 8559 Salmonella isolates studied, 43 ST198 isolates were identified, showing that clade 198.2 prevalent in Shenzhen exhibited multidrug resistance, necessitating increased surveillance for this strain.
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Article Synopsis
  • The resurgence of hemorrhagic fever with renal syndrome (HFRS) has prompted the need for better and safer vaccines, as existing options in China and Korea are inadequate.
  • Researchers designed a new recombinant protein vaccine using bioinformatics and the S2 Drosophila expression system to improve protein expression and immune response.
  • The promising results from mouse models show that the new HFRS subunit vaccine stimulates strong immunity and could be a potential candidate for preventing HFRS in humans.
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Unlabelled: Mast cells constitute indispensable immunoregulatory sentinel cells in the tumor microenvironment. A better understanding of the regulation and functions of mast cells in lung adenocarcinoma (LUAD) could uncover therapeutic approaches to reprogram the immunosuppressive tumor microenvironment. Here, we performed flow cytometry and single-cell RNA sequencing (scRNA-seq) of patient LUAD samples to comprehensively characterize LUAD-infiltrating mast cells.

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Vagal-mAChR4 signaling promotes Friend virus complex (FV)-induced acute erythroleukemia.

Virol Sin

June 2023

Unit of Respiratory Infection and Immunity, Institute Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, 200031, China; CAS Key Laboratory of Molecular Virology and Immunology, Institute Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, 200031, China; University of Chinese Academy of Sciences, Beijing, 101408, China; Shanghai Key Laboratory of Lung Inflammation and Injury, Shanghai, 200031, China. Electronic address:

Article Synopsis
  • Erythroleukemia, a type of acute myeloid leukemia (M6), has a poor prognosis and challenging treatment options; this study examines the role of the vagus nerve in its pathology.
  • The Friend virus (FV), a combination of two viruses, induces acute erythroleukemia in mice, and the study found that vagotomy (cutting the vagus nerve) can reverse some effects of FV infection, such as anemia and alterations in specific blood cell populations (erythroblasts and erythroid cells).
  • The research suggests that vagal signaling, particularly through muscarinic acetylcholine receptors, plays a significant role in the disease's progression and introduces new insights into how the nervous system may
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