Results 81 to 90 of about 459,921 (305)

Infection of adult thymus with murine retrovirus induces virus-specific central tolerance that prevents functional memory CD8+ T cell differentiation. [PDF]

PLoS Pathogens, 2014
In chronic viral infections, persistent antigen presentation causes progressive exhaustion of virus-specific CD8+ T cells. It has become clear, however, that virus-specific naïve CD8+ T cells newly generated from the thymus can be primed with persisting ...
Shiki Takamura, Eiji Kajiwara, Sachiyo Tsuji-Kawahara, Tomoko Masumoto, Makoto Fujisawa, Maiko Kato, Tomomi Chikaishi, Yuri Kawasaki, Saori Kinoshita, Manami Itoi, Nobuo Sakaguchi, Masaaki Miyazawa   +11 more
doaj   +1 more source

Profiling neoadjuvant therapy response in rectal cancer using meta‐analysis of publicly available transcriptomic RNA‐seq datasets

Molecular Oncology, EarlyView.
This study integrates publicly available transcriptomic datasets to identify molecular signatures associated with response to neoadjuvant chemoradiotherapy in locally advanced rectal cancer. By analyzing a combination of multiple cohorts with bioinformatics approaches, we reveal biological pathways and immune‐related features that may improve ...
Aleksandra Stanojevic, Rafael Stroggilos, Mladen Marinkovic, Ana Djuric, Suzana Stojanovic‐Rundic, Radmila Jankovic, Sergi Castellvi‐Bel, Remond J.A. Fijneman, Antonia Vlahou, Jerome Zoidakis, Milena Cavic   +10 more
wiley   +1 more source

Immunization-induced antigen archiving enhances local memory CD8+ T cell responses following an unrelated viral infection

npj Vaccines
Antigens from viruses or immunizations can persist or are archived in lymph node stromal cells such as lymphatic endothelial cells (LEC) and fibroblastic reticular cells (FRC). Here, we find that, during the time frame of antigen archiving, LEC apoptosis
Thu A. Doan, Tadg S. Forward, Johnathon B. Schafer, Erin D. Lucas, Ira Fleming, Aspen Uecker-Martin, Edgardo Ayala, Jenna J. Guthmiller, Jay R. Hesselberth, Thomas E. Morrison, Beth A. Jirón Tamburini   +10 more
doaj   +1 more source

Production of Proinflammatory Cytokines by CD4+ and CD8+ T Cells in Response to Mycobacterial Antigens among Children and Adults with Tuberculosis

Pathogens, 2023
Tuberculosis (TB), caused by Mycobacterium tuberculosis (Mtb), remains a leading cause of pediatric morbidity and mortality. Young children are at high risk of TB following Mtb exposure, and this vulnerability is secondary to insufficient host immunity ...
Erin Morrow, Qijia Liu, Sarah Kiguli, Gwendolyn Swarbrick, Mary Nsereko, Megan D. Null, Meghan Cansler, Harriet Mayanja-Kizza, W. Henry Boom, Phalkun Chheng, Melissa R. Nyendak, David M. Lewinsohn, Deborah A. Lewinsohn, Christina L. Lancioni   +13 more
doaj   +1 more source

Loss of AMBRA1 activates MAPK and angiogenesis signaling pathways in melanoma cells

FEBS Open Bio, EarlyView.
Loss of AMBRA1 in melanoma cells activates multiple oncogenic pathways associated with tumor progression. Transcriptomic and protein network analyses revealed that AMBRA1 depletion enhances MAPK/ERK signaling, angiogenesis, TGF‐β/EMT signaling, and Wnt/axon guidance pathways.
Milad Ibrahim, Marco Corazzari, Iman Osman, Jane Armstrong, Noel Carter   +4 more
wiley   +1 more source

Diffuse Large B-Cell Lymphoma with Aberrant Coexpression of CD5 and CD8 T-Cell Markers

Case Reports in Oncology
Introduction: The expression of T-cell-associated antigens on diffuse large B-cell lymphoma (DLBCL) is uncommon. The coexpression of ≥2 T-cell-associated antigens on DLBCL is even rarer.
Janet Fan, Sarita Thanedar, Vasily Ovechko, Bagi Jana   +3 more
doaj   +1 more source

Preproinsulin Designer Antigens Excluded from Endoplasmic Reticulum Suppressed Diabetes Development in NOD Mice by DNA Vaccination

Molecular Therapy: Methods & Clinical Development, 2019
DNA vaccines against autoimmune type 1 diabetes (T1D) contain a nonpredictable risk to induce autoreactive T cell responses rather than a protective immunity. Little is known if (and how) antigen expression and processing requirements favor the induction
Katja Stifter, Cornelia Schuster, Jana Krieger, Andreas Spyrantis, Bernhard Otto Boehm, Reinhold Schirmbeck   +5 more
doaj   +1 more source

BCG vaccination potentiates oxidative phosphorylation in neonatal myeloid‐derived suppressor cells

FEBS Open Bio, EarlyView.
BCG vaccination enhances oxidative phosphorylation in neonatal MDSCs, impairing their immunosuppressive function. It upregulates electron transport chain genes and mitochondrial activity, increasing ATP and oxygen consumption. Pharmacological OXPHOS inhibition partially restores suppressive capacity, confirming causality.
Yingying Chen, Hui Li
wiley   +1 more source

Tumor antigen cross-presentation and the dendritic cell: Where it all begins? [PDF]

, 2010
Dendritic cells (DCs) are professional antigen-presenting cells (APCs) that are critical for the generation of effective cytotoxic T lymphocyte (CTL) responses; however, their function and phenotype are often defective or altered in tumor-bearing hosts ...
McDonnell, A.M., Robinson, B.W.S., Currie, A.J.   +2 more
core  

Chronobiology of Cancer: How Aging Fuels Oncogenesis at the Molecular Level

Aging and Cancer, EarlyView.
This graphical abstract illustrates the key biological pathways linking aging with cancer development and progression. In the upper left, cumulative exposure to ultraviolet radiation, toxins, and reactive oxygen species (ROS) causes DNA damage and genomic instability, whereas age‐related decline in repair mechanisms, such as ATM/ATR, BER, and NER ...
Anu Singh, Aroonima Misra, Sufian Zaheer
wiley   +1 more source