Results 51 to 60 of about 88,792,421 (301)

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

Toll-like receptor 4 promotes proliferation and apoptosis resistance in human papillomavirus–related cervical cancer cells through the Toll-like receptor 4/nuclear factor-κB pathway

Tumor Biology, 2017
Toll-like receptor 4 is overexpressed in various tumors, including cervical carcinoma. However, the role of Toll-like receptor 4 in cervical cancer remains controversial, and the underlying mechanisms are largely elusive.
Ninghong Jiang, Feng Xie, Qisang Guo, Ming-Qing Li, Jingjing Xiao, Long Sui   +5 more
doaj   +1 more source

Toll-like receptor 4 deficiency impairs motor coordination.

Frontiers in Neuroscience, 2016
The cerebellum plays an essential role in balance and motor coordination. Purkinje cells (PCs) are the sole output neurons of the cerebellar cortex and are critical for the execution of its functions, including motor coordination.
Jianwei eZhu, Yifei eLi, Zhaotao eWang, Weiqiang eJia, Ruxiang eXu   +4 more
doaj   +1 more source

Macrophages exposed continuously to lipopolysaccharide and other agonists that act via toll-like receptors exhibit a sustained and additive activation state [PDF]

, 2001
Background: Macrophages sense microorganisms through activation of members of the Toll-like receptor family, which initiate signals linked to transcription of many inflammation associated genes.
Aderem, A, Underhill David M, Ozinsky, A O, Underhill, D. M., Ozinsky, A.O., Sweet Matthew J, Hume, D A, Liew Foo Y, Sweet, M J, Underhill, D M, Liew, F Y, Liew, F.Y., Aderem, A., Sweet, M. J., Hume, D. A., Hume David A, Ozinsky Adrian O, Aderem Alan, David A Hume, Foo Y Liew, David M Underhill, Matthew J Sweet, Adrian O Ozinsky, Alan Aderem   +23 more
core   +1 more source

Microbiome‐blood–brain barrier interactions in aging — mechanisms and therapeutic potential

FEBS Letters, EarlyView.
Aging reshapes the gut microbiome (↓SCFA‐producing commensals; ↑pro‐inflammatory outputs), shifting circulating metabolites (↓SCFAs; ↑LPS, ↑TMAO, ↑PAA) that act at the BBB to increase nonspecific transcytosis, alter transport, and promote astrocyte reactivity, heightening brain vulnerability.
Daniel Cuervo‐Zanatta, Hari Baskar Balasubramanian, Amir Pasokh, Marietta Zille   +3 more
wiley   +1 more source

Activation of interferon regulatory factor-3 via toll-like receptor 3 and immunomodulatory functions detected in A549 lung epithelial cells exposed to misplaced U1-snRNA [PDF]

, 2009
U1-snRNA is an integral part of the U1 ribonucleoprotein pivotal for pre-mRNA splicing. Toll-like receptor (TLR) signaling has recently been associated with immunoregulatory capacities of U1-snRNA.
Pfeilschifter, Josef (Prof. Dr.), Sadik, Christian David, Bachmann, Malte, Mühl, Heiko   +3 more
core   +1 more source

Metastasis on pause: How dormant tumor cells stay hidden within the tumor microenvironment and evade immune surveillance

Molecular Oncology, EarlyView.
Dormant cancer cells can hide in distant organs for years, evading treatment and the immune system. This review highlights how signals from the surrounding tissue and immune environment keep these cells inactive or trigger their reawakening. Understanding these mechanisms may help develop therapies to eliminate or control dormant cells and prevent ...
Kanishka Tiwary, Jose Javier Bravo‐Cordero   +1 more
wiley   +1 more source

Involvement of the visfatin/toll-like receptor 4 signaling axis in human dental pulp cell senescence: Protection via toll-like receptor 4 blockade

Journal of Dental Sciences, 2023
Background: /purpose: Dental pulp plays an important role in the maintenance of tooth homeostasis and repair. The aging of dental pulp affects the functional life of the tooth owing to the senescence of dental pulp cells.
Chang Youp Ok, Sera Park, Hye-Ock Jang, Moon-Kyoung Bae, Soo-Kyung Bae   +4 more
doaj   +1 more source

Class A scavenger receptor 1 (MSR1) restricts hepatitis C virus replication by mediating toll-like receptor 3 recognition of viral RNAs produced in neighboring cells [PDF]

, 2013
Persistent infections with hepatitis C virus (HCV) may result in life-threatening liver disease, including cirrhosis and cancer, and impose an important burden on human health.
McGivern, David R., Fengyu Hu, Daisuke Yamane (206804), David R McGivern, Hu, Fengyu, Hiromichi Dansako (357935), Nobuyuki Kato (235685), Christoph Welsch (22852), Stanley M. Lemon (30543), Daisuke Yamane, Christoph Welsch, Welsch, Christoph, David R. McGivern (415119), Lemon, Stanley M., Kato, Nobuyuki, Fengyu Hu (415120), Dansako, Hiromichi, Stanley M Lemon, Yamane, Daisuke, Nobuyuki Kato, Hiromichi Dansako, Yamane Daisuke, McGivern David R., Welsch Christoph, Hu Fengyu, Dansako Hiromichi, Kato Nobuyuki, Lemon Stanley M.   +27 more
core   +1 more source

PANoptosis in the pathogenesis of myelodysplastic syndromes

Molecular Oncology, EarlyView.
PANoptosis, a combination of three types of programmed cell death, is mediated by a large protein complex called a PANoptosome. In healthy bone marrow hematopoietic cells, PANoptosis is restricted by inhibitory signaling. In MDS, bone marrow cells become sensitive to the PANoptotic stimuli due to the aberrant inactivation of inhibitory signaling or ...
Rohit Thalla, Jyoti Lamichhane, Cameron Lewis, Peter Breslin, Jiwang Zhang   +4 more
wiley   +1 more source