Results 91 to 100 of about 1,958,413 (325)

PD-1 Inhibitory Receptor Downregulates Asparaginyl Endopeptidase and Maintains Foxp3 Transcription Factor Stability in Induced Regulatory T Cells [PDF]

, 2018
CD4+ T cell differentiation into multiple T helper (Th) cell lineages is critical for optimal adaptive immune responses. This report identifies an intrinsic mechanism by which programmed death-1 receptor (PD-1) signaling imparted regulatory phenotype to ...
Amarnath, Shoba, Berlinguer-Palmini, Rolando, Bogyo, Matthew, Eckhaus, Michael A., Edgington-Mitchell, Laura, Felizardo, Tania C., Flomerfelt, Francis A., Fowler, Daniel H., Gangaplara, Arunakumar, Knight, David, Laurence, Arian, Liniany, Lukasz P., Mallett, Grace, Martinez-Fabregas, Jonathan, Samsel, Leigh A., Shevach, Ethan M., Stathopoulou, Chaido, van Kasteren, Sander I., Watts, Colin, Yim, Joshua J., Zhu, Jinfang   +20 more
core   +2 more sources

Molecular bases of circadian magnesium rhythms across eukaryotes

FEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

Unexpected Help: Follicular Regulatory T Cells in the Germinal Center

Frontiers in Immunology, 2018
Follicular helper T (Tfh) cells are necessary for germinal center (GC) formation and within the GC, provide key signals to B cells for their differentiation into plasmablasts and plasma cells that secrete high-affinity and isotype-switched antibody (Ab).
Markus M. Xie, Alexander L. Dent
doaj   +1 more source

Crosstalk between the ribosome quality control‐associated E3 ubiquitin ligases LTN1 and RNF10

FEBS Letters, EarlyView.
Loss of the E3 ligase LTN1, the ubiquitin‐like modifier UFM1, or the deubiquitinating enzyme UFSP2 disrupts endoplasmic reticulum–ribosome quality control (ER‐RQC), a pathway that removes stalled ribosomes and faulty proteins. This disruption may trigger a compensatory response to ER‐RQC defects, including increased expression of the E3 ligase RNF10 ...
Yuxi Huang, Satoshi Hashimoto, Sota Ito, Chisato Kikuguchi, Miho Hoshi, Kiyoshi Yamaguchi, Yoichi Furukawa, Toru Suzuki, Toshifumi Inada   +8 more
wiley   +1 more source

Peptide‐based ligand antagonists block a Vibrio cholerae adhesin

FEBS Letters, EarlyView.
The structure of a peptide‐binding domain of the Vibrio cholerae adhesin FrhA was solved by X‐ray crystallography, revealing how the inhibitory peptide AGYTD binds tightly at its Ca2+‐coordinated pocket. Structure‐guided design incorporating D‐amino acids enhanced binding affinity, providing a foundation for developing anti‐adhesion therapeutics ...
Mingyu Wang, Grace Du, Charity Yongo‐Luwawa, Angelina Lu, Brett Kinrade, Kim Munro, Karl E. Klose, William D. Lubell, Peter Davies, Shuaiqi Guo   +9 more
wiley   +1 more source

Nod2 Deficiency in mice is Associated with Microbiota Variation Favouring the Expansion of mucosal CD4+ LAP+ Regulatory Cells [PDF]

, 2018
Nucleotide-binding Oligomerization Domain-2 (NOD2) mutations are associated with an increased risk to develop Crohn's Disease. In previous studies, we have shown that Nod2-/- mice manifest increased proportion of Lamina Propria (LP) CD4+ LAP+ Foxp3 ...
Boirivant, M., Boirivant, M., Butera, A., Cavalieri, D., De Filippo, C., Di Paola, M., Pavarini, L., Pindo, M., Sanchez, M., Strati, F.   +9 more
core   +3 more sources

Interplay between circadian and other transcription factors—Implications for cycling transcriptome reprogramming

FEBS Letters, EarlyView.
This perspective highlights emerging insights into how the circadian transcription factor CLOCK:BMAL1 regulates chromatin architecture, cooperates with other transcription factors, and coordinates enhancer dynamics. We propose an updated framework for how circadian transcription factors operate within dynamic and multifactorial chromatin landscapes ...
Xinyu Y. Nie, Jerome S. Menet
wiley   +1 more source

Plasmodium chabaudi AS Infection Induces CD4+ Th1 Cells and Foxp3+T-bet+ Regulatory T Cells That Express CXCR3 and Migrate to CXCR3 Ligands

Frontiers in Immunology, 2019
Control and elimination of blood-stage Plasmodium chabaudi AS infection requires CD4+ Th1 cells that secrete IFN-γ and T follicular help (Tfh) cells together with B cell production of antibody.
Floriana Berretta, Floriana Berretta, Ciriaco A. Piccirillo, Ciriaco A. Piccirillo, Ciriaco A. Piccirillo, Mary M. Stevenson, Mary M. Stevenson   +6 more
doaj   +1 more source

Targeting the CBM complex causes Treg cells to prime tumours for immune checkpoint therapy. [PDF]

, 2019
Solid tumours are infiltrated by effector T cells with the potential to control or reject them, as well as by regulatory T (Treg) cells that restrict the function of effector T cells and thereby promote tumour growth1.
Cadilha, Bruno L, Carrizosa, Esteban, Di Pilato, Mauro, Kim, Edward Y, Ligorio, Matteo, Mani, Vinidhra, Marangoni, Francesco, Medoff, Benjamin D, Mempel, Thorsten R, Misale, Sandra, Nasrallah, Mazen N, Prüßmann, Jasper N, Seruggia, Davide, Usmani, Shariq M, Villani, Alexandra-Chloe, Warner, Ross D, Zappulli, Valentina   +16 more
core   +2 more sources

Real‐time assay of ribonucleotide reductase activity with a fluorescent RNA aptamer

FEBS Letters, EarlyView.
Ribonucleotide reductases (RNR) synthesize DNA building blocks de novo, making them crucial in DNA replication and drug targeting. FLARE introduces the first single‐tube real‐time coupled RNR assay, which enables isothermal tracking of RNR activity at nanomolar enzyme levels and allows the reconstruction of allosteric regulatory patterns and rapid ...
Jacopo De Capitani, Noemi E. Nwosu, Viktoria Gocke, Müge Kasanmascheff, Hannes Mutschler   +4 more
wiley   +1 more source