Results 61 to 70 of about 4,567,849 (254)

Genetic Ablation and Multi‐Omics Profiling Reveal CEP55 as a Key Driver of Tumorigenesis in Diverse Cancer Models

open access: yesAdvanced Science, EarlyView.
Genetic ablation of Cep55 in Pten‐deficient mouse models delays tumorigenesis. Integrated multi‐omics analyses (proteomics, phosphoproteomics, and spatial transcriptomics) reveal that CEP55 regulates oncogenic signaling (RAS/ERK, PI3K/AKT), integrin/FAK‐mediated adhesion, extracellular matrix (ECM) remodeling, and endocytosis.
Behnam Rashidieh   +22 more
wiley   +1 more source

Activation of the mTOR/ Akt pathway in thymic epithelial cells derived from thymomas.

open access: yesPLoS ONE, 2019
The pathogenesis of thymic epithelial tumors remains poorly elucidated. The PIK3/Akt/mTOR pathway plays a key role in various cancers; interestingly, several phase I/II studies have reported a positive effect of mTOR inhibitors in disease control in ...
Jean-Michel Maury   +10 more
doaj   +1 more source

METTL7A Downregulation Drives SLC1A5‐Mediated Glutamine Competition to Promote Tumor Proliferation and Suppress CD8+ T Cell Immunity in Gastric Cancer

open access: yesAdvanced Science, EarlyView.
GC cells enhance glutamine accumulation by upregulating SLC1A5 expression. This upregulation not only boosts GC cell proliferation, but also outcompetes CD8+ T cells for glutamine and suppresses their antitumor immunity. Mechanistically, METTL7A deficiency in GC induces SLC1A5 overexpression via an m6A‐dependent pathway and N‐glycosylation ...
Mingjun Sun   +16 more
wiley   +1 more source

Delta-like 4 is indispensable in thymic environment specific for T cell development. [PDF]

open access: yes, 2008
The thymic microenvironment is required for T cell development in vivo. However, in vitro studies have shown that when hematopoietic progenitors acquire Notch signaling via Delta-like (Dll)1 or Dll4, they differentiate into the T cell lineage in the ...
Holländer, Georg   +30 more
core   +1 more source

Thymic Stromal Lymphopoietin–Driven B-Cell Hyperactivation Impairs Intestinal Epithelial Homeostasis Predisposing to Enterocolitis in Hirschsprung DiseaseSummaryWhat You Need to Know

open access: yesCellular and Molecular Gastroenterology and Hepatology
Background & Aims: Hirschsprung-associated enterocolitis, a lethal complication of Hirschsprung’s disease—a prevalent congenital disorder with high morbidity—has a poorly understood pathogenesis.
Shiwei He   +15 more
doaj   +1 more source

Administration of RANKL boosts thymic regeneration upon bone marrow transplantation

open access: yesEMBO Molecular Medicine, 2017
Cytoablative treatments lead to severe damages on thymic epithelial cells (TECs), which result in delayed de novo thymopoiesis and a prolonged period of T‐cell immunodeficiency. Understanding the mechanisms that govern thymic regeneration is of paramount
Noella Lopes   +3 more
doaj   +1 more source

Multi‐Omics Integration Identifies a CDH3‐Associated Malignant Epithelial State and Immunosuppressive Niche to Predict Prognosis in Thymic Epithelial Tumors

open access: yesAdvanced Science, EarlyView.
Single‐cell, spatial, molecular, and pathology analyses identify a CDH3‐associated malignant epithelial state in thymic epithelial tumors. This state links stem‐like and EMT programs to M2 macrophage–rich immunosuppressive niches, genomic instability, poor survival, and drug vulnerability.
Yuntao Feng   +13 more
wiley   +1 more source

Generation of Functional Patient-Specific Thymus Organoids From Human Pluripotent Stem Cells (hPSCs) Using Air–Liquid Interface Culture

open access: yesBio-Protocol
The thymus is critical for the establishment of a functional and self-tolerant adaptive immune system, but it involutes with age, resulting in reduced naive T-cell output.
Stephan Ramos, Holger Russ
doaj   +1 more source

Intrasplenic Thymus Organogenesis from Injectable Tissue Fragments Restores Functional T‐Cell Immunity

open access: yesAdvanced Science, EarlyView.
Clinical intramuscular thymus transplantation yields only short‐lived efficacy and marginal therapeutic benefits. Benefiting from the spleen's intrinsic strengths—rapid vascular perfusion, abundant developmental factors, and resident progenitors—the intrasplenic thymic grafts achieve robust thymic regeneration and substantial T‐cell reconstitution ...
Shaocong Wang   +10 more
wiley   +1 more source

Thymic Epithelial Tumor with Heart Metastasis in a Horse

open access: yesVeterinary Medicine International, 2010
Thymic malignancy is rare in horses. Thymic epithelial tumor was diagnosed in an 18-year-old mare with invasion and metastasis to the pericardium and heart.
Farshid Shahriar, Janet Moore
doaj   +1 more source

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