Results 101 to 110 of about 490,629 (332)

Functional Divergence and Horizontal Transfer of Type IV Secretion Systems [PDF]

Molecular Biology and Evolution, 2005
The type IV secretion system (TFSSs) is a multifunctional family of translocation pathways that mediate the transfer of DNA among bacteria and deliver DNA and proteins to eukaryotic cells during bacterial infections. Horizontal transmission has dominated the evolution of the TFSS, as demonstrated here by a lack of congruence between the tree topology ...
Frank AC, Alsmark CM, Thollesson M, Andersson SG   +3 more
openaire   +3 more sources

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

H. pylori modulates DC functions via T4SS/TNFα/p38-dependent SOCS3 expression

Cell Communication and Signaling, 2020
Background Helicobacter pylori (H. pylori) is a gram-negative bacterium that chronically infects approximately 50% of the world’s human population.
Muamera Sarajlic, Theresa Neuper, Julia Vetter, Susanne Schaller, Maria M. Klicznik, Iris K. Gratz, Silja Wessler, Gernot Posselt, Jutta Horejs-Hoeck   +8 more
doaj   +1 more source

Brucella abortus Infection of Placental Trophoblasts Triggers Endoplasmic Reticulum Stress-Mediated Cell Death and Fetal Loss via Type IV Secretion System-Dependent Activation of CHOP. [PDF]

, 2019
Subversion of endoplasmic reticulum (ER) function is a feature shared by multiple intracellular bacteria and viruses, and in many cases this disruption of cellular function activates pathways of the unfolded protein response (UPR).
Atluri, Vidya L, Byndloss, Mariana X, Celli, Jean, de Jong, Maarten F, English, Bevin C, Kerrinnes, Tobias, Miller, Cheryl N, O'Riordan, Mary, Roop, R Martin, Seyffert, Núbia, Tsai, April Y, Tsolis, Renée M, Walker, Gregory T, Winter, Maria G, Young, Briana M   +14 more
core   +1 more source

Transcriptional network analysis of PTEN‐protein‐deficient prostate tumors reveals robust stromal reprogramming and signs of senescent paracrine communication

Molecular Oncology, EarlyView.
Combining PTEN protein assessment and transcriptomic profiling of prostate tumors, we uncovered a network enriched in senescence and extracellular matrix (ECM) programs associated with PTEN loss and conserved in a mouse model. We show that PTEN‐deficient cells trigger paracrine remodeling of the surrounding stroma and this information could help ...
Ivana Rondon‐Lorefice, Jose I. Lopez, Aitziber Ugalde‐Olano, Maite Zufiaurre, Ianire Astobiza, Natalia Martin‐Martin, Laura Bozal‐Basterra, Saioa Garcia‐Longarte, Amaia Zabala‐Letona, Sofia Rey, Aida Santos‐Martin, Miguel Unda, Ana Loizaga‐Iriarte, Mariona Graupera, Paolo Nuciforo, Arkaitz Carracedo, Isabel Mendizabal   +16 more
wiley   +1 more source

Membrane platform protein PulF of the Klebsiella type II secretion system forms a trimeric ion channel essential for endopilus assembly and protein secretion

mBio
Type IV pili and type II secretion systems (T2SS) are crucial for bacterial adaptation, virulence, and environmental impact. A common mechanism underlying their multiple functions involves assembly of dynamic plasma membrane-anchored filaments—the (endo ...
Ingrid Guilvout, Firdaus Samsudin, Roland G. Huber, Peter J. Bond, Benjamin Bardiaux, Olivera Francetic   +5 more
doaj   +1 more source

Maintenance of Type IV Secretion Function During Helicobacter pylori Infection in Mice

mBio, 2020
The Helicobacter pylori type IV secretion system (T4SS) encoded on the cag pathogenicity island (cagPAI) secretes the CagA oncoprotein and other effectors into the gastric epithelium.
Emma C. Skoog, Miriam E. Martin, Roberto M. Barrozo, Lori M. Hansen, Lucy P. Cai, Seung-Joo Lee, Joseph M. Benoun, Stephen J. McSorley, Jay V. Solnick   +8 more
doaj   +1 more source

Role of Agrobacterium VirB11 ATPase in T-pilus assembly and substrate selection [PDF]

, 2001
The VirB11 ATPase is a subunit of the Agrobacterium tumefaciens transfer DNA (T-DNA) transfer system, a type IV secretion pathway required for delivery of T-DNA and effector proteins to plant cells during infection. In this study,
Sagulenko, E., Sagulenko, V., Chen, J., Christie, P. J.   +3 more
core   +1 more source

LINC01116, a hypoxia‐lncRNA marker of pathological lymphangiogenesis and poor prognosis in lung adenocarcinoma

Molecular Oncology, EarlyView.
The LINC01116 long noncoding RNA is induced by hypoxia and associated with poor prognosis and high recurrence rates in two cohorts of lung adenocarcinoma patients. Here, we demonstrate that besides its expression in cancer cells, LINC01116 is markedly expressed in lymphatic endothelial cells of the tumor stroma in which it participates in hypoxia ...
Marine Gautier‐Isola, Rafael Lopes Goncalves, Marin Truchi, Caroline Lacoux, Célia Scribe, Hugo Cadis, Laetitia Guardini, Sophie Bekisz, Marius Ilié, Paul Hofman, Georges Vassaux, Bernard Mari, Roger Rezzonico   +12 more
wiley   +1 more source

The Rab-binding profiles of bacterial virulence factors during infection [PDF]

, 2016
Legionella pneumophila, the causative agent of Legionnaire's disease, uses its type IV secretion system to translocate over 300 effector proteins into host cells.
Broncel, M, Carson, D, Frankel, GM, Mattheis, C, Mousnier, A, Schroeder, GN, So, EC, Tate, EW   +7 more
core   +1 more source