Results 81 to 90 of about 3,851,506 (357)

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Analysis of B cell selection mechanisms in the adaptive immune response [PDF]

, 2005
The essential task of a germinal centre reaction is the selection of those B cells that bind the antigen with high affinity. The exact mechanisms of B cell selection is still unknown and rather difficult to be accessed in experiment.
Iber, D., Maini, P. K., Meyer-Hermann, M. E.   +2 more
core  

Avidity of influenza-specific memory CD8+ T-cell populations decays over time compromising antiviral immunity [PDF]

, 2012
Decline of cell-mediated immunity is often attributed to decaying T-cell numbers and their distribution in peripheral organs. This study examined the hypothesis that qualitative as well as quantitative changes contribute to the declining efficacy of CD8+
Alexander-Miller, Almeida, Appay, Berger, Betts, Bosselut, Cerundolo, Gallimore, Gorman, Hansen, Hollander, Homann, Jelley-Gibbs, Jenkins, Jones, Jones, Judge, Karrer, Kattan, Kedzierska, Kim, Kohlmeier, Lefranc, Liang, Moffat, Neveu, Norbury, Powell, Price, Quigley, Rangel-Moreno, Richards, Roberts, Schluns, Tan, Tough, Trautmann, Valkenburg, Valkenburg, Woodland, Wooldridge, Zammit   +41 more
core   +1 more source

Diversity and complexity in neural organoids

FEBS Letters, EarlyView.
Neural organoid research aims to expand genetic diversity on one side and increase tissue complexity on the other. Chimeroids integrate multiple donor genomes within single organoids. Self‐organising multi‐identity organoids, exogenous cell seeding, or enforced assembly of region‐specific organoids contribute to tissue complexity.
Ilaria Chiaradia, Madeline A. Lancaster
wiley   +1 more source

In vitro models of cancer‐associated fibroblast heterogeneity uncover subtype‐specific effects of CRISPR perturbations

Molecular Oncology, EarlyView.
Development of therapies targeting cancer‐associated fibroblasts (CAFs) necessitates preclinical model systems that faithfully represent CAF–tumor biology. We established an in vitro coculture system of patient‐derived pancreatic CAFs and tumor cell lines and demonstrated its recapitulation of primary CAF–tumor biology with single‐cell transcriptomics ...
Elysia Saputra, Shamsudheen Karuthedath Vellarikkal, Lixia Li, Hong Sun, Khoa Nguyen, Amber Montano, Suchitra Natarajan, Federica Piccioni, Alex Michael Tamburino, Xin Yu, Aleksandra Katarzyna Olow   +10 more
wiley   +1 more source

Cell surface interactome analysis identifies TSPAN4 as a negative regulator of PD‐L1 in melanoma

Molecular Oncology, EarlyView.
Using cell surface proximity biotinylation, we identified tetraspanin TSPAN4 within the PD‐L1 interactome of melanoma cells. TSPAN4 negatively regulates PD‐L1 expression and lateral mobility by limiting its interaction with CMTM6 and promoting PD‐L1 degradation.
Guus A. Franken, Andrea Abel Gutierrez, Imke van Rossum, Cornelia G. Spruijt, Michiel Vermeulen, Guido van Mierlo, Blanca Scheijen, Annemiek B. van Spriel   +7 more
wiley   +1 more source

The Frequency of HLA-A, HLA-B, and HLA-DRB1 Alleles in Patients with Acute Lymphoblastic Leukemia in the Turkish Population: A Case-Control Study

Turkish Journal of Hematology, 2016
We studied the frequencies of human leukocyte antigen alleles (A, B, and DRB1) in 90 patients with acute lymphoblastic leukemia (ALL) and then compared them with 126 controls in this study. Although the frequencies of the A*03 allele, the DRB1*03 allele,
Türkan Patıroğlu, H. Haluk Akar
doaj   +1 more source

Early signaling defects in human T cells anergized by T cell presentation of autoantigen. [PDF]

, 1992
Major histocompatibility complex class II-positive human T cell clones are nontraditional antigen-presenting cells (APCs) that are able to simultaneously present and respond to peptide or degraded antigen, but are unable to process intact protein ...
Freeman, GJ, Hafler, DA, LaSalle, JM, Nadler, LM, Tolentino, PJ   +4 more
core  

PARP inhibition and pharmacological ascorbate demonstrate synergy in castration‐resistant prostate cancer

Molecular Oncology, EarlyView.
Pharmacologic ascorbate (vitamin C) increases ROS, disrupts cellular metabolism, and induces DNA damage in CRPC cells. These effects sensitize tumors to PARP inhibition, producing synergistic growth suppression with olaparib in vitro and significantly delayed tumor progression in vivo. Pyruvate rescue confirms ROS‐dependent activity.
Nicolas Gordon, Peter T. Gallagher, Orly I. Richter, Neermala Poudel Neupane, Amy C. Mandigo, Jennifer J. McCann, Emanuela Dylgjeri, Irina Vasilevskaya, Christopher McNair, Channing J. Paller, Wm. Kevin Kelly, Karen E. Knudsen, Matthew J. Schiewer, Ayesha A. Shafi   +13 more
wiley   +1 more source

Diagnostic validation of novel Borrelia antigens discovered by whole-proteome microarray: Advancing early detection and test of cure for Lyme disease

Cell Reports Medicine
Summary: Lyme disease serodiagnosis has limited early sensitivity and cannot distinguish active from past infections. To address this, we screen a Borrelia afzelii whole-proteome microarray (1,296 proteins) using human (n = 149) and murine (n = 32) sera.
Abhijeet Nayak, M.E. Baarsma, Jacqueline A. van Eck, Arlo Z. Randall, Jeanine Ursinus, Andy A. Teng, Jozelyn V. Pablo, Chris Hung, Doris U.M. Wopereis, Freek van de Schoor, Calin D. Popa, Cees C. van den Wijngaard, Bart-Jan Kullberg, Leo A.B. Joosten, Herman Kuiper, Joseph J. Campo, Xiaouw Liang, Joppe W. Hovius   +17 more
doaj   +1 more source