Results 31 to 40 of about 4,159 (85)

Ligand binding represses bacterial histidine kinase activity by inhibiting its dimerization

The FEBS Journal, EarlyView.
PdtaS is a kinase in the pathogen Mycobacterium tuberculosis that senses copper and nitric oxide and controls virulence gene expression, but how the kinase senses these compounds was unclear. We show that PdtaS is active as a dimer with each monomer phosphorylating the other in trans.
Gaurav D. Sankhe, Jiawei Xing, Xiansha Xiao, John A. Buglino, Huilin Li, Igor B. Zhulin, Michael S. Glickman   +6 more
wiley   +1 more source

Naturally Occurring CodY Variants Alter Ligand Binding, DNA Target Affinity, and Virulence in Clostridioides difficile

Molecular Microbiology, EarlyView.
Single amino acid substitutions in the global regulator CodY can alter nutrient sensing and virulence regulation in Clostridioides difficile. We show that the CodY(Y146N) and CodY(V58A) variants display altered ligand binding and reduced promoter binding, leading to derepression of toxin regulatory pathways and increased virulence in vivo.
Md Kamrul Hasan, Sourav Roy, Revathi Govind   +2 more
wiley   +1 more source

To Move or Not to Move: When and How Bacteria Suppress Flagellar Motility

Molecular Microbiology, EarlyView.
Motility cessation in bacteria is a key regulatory strategy that provides multiple survival advantages including enhanced community cooperation, niche adaptation and evasion of host immune responses. This process is controlled by associated mechanisms such as post‐translational modifications and second messenger signalling that stabilise non‐motile ...
Fatemeh Mohaghegh, Jacob Scadden, Matthew A. B. Baker   +2 more
wiley   +1 more source

Understanding exosomes in regenerative dentistry

Periodontology 2000, EarlyView.
Abstract Background Regenerative dentistry is shifting from cell‐based strategies to cell‐free biologics capable of orchestrating intricate tissue repair. Exosomes, nanosized extracellular vesicles carrying bioactive molecular payloads, have emerged as central modulators of intercellular communication.
Paras Ahmad, Anton Sculean, Richard J. Miron   +2 more
wiley   +1 more source

Multi‐Targeting Ligands as Prospective Therapeutics for Alzheimer's Disease, a Prevalent Neurodegenerative Disorder: Mechanistic Insights, Emerging Targets and Drug Discovery Campaigns

Medicinal Research Reviews, Volume 46, Issue 4, Page 1173-1229, July 2026.
ABSTRACT Alzheimer's disease (AD) is a debilitating neurodegenerative condition characterized by progressive cognitive impairment, memory deterioration, and neuronal dysfunction. Its complex pathophysiology involves multiple interlinked processes, including amyloid‐β (Aβ) aggregation, tau hyperphosphorylation, oxidative stress, neuroinflammation ...
Amandeep Thakur, Mandeep Rana, Sakshi Vanjani, Kei‐Chi Liou, Rajeev Taliyan, Kunal Nepali, Chih‐Hao Yang   +6 more
wiley   +1 more source

Small Extracellular Vesicles from Neural Cells: Physiological and Pathological Roles, and Potential in Neurodegenerative Therapy

Advanced Healthcare Materials, Volume 15, Issue 21, 5 June 2026.
Neural cell–derived small extracellular vesicles (sEVs) are emerging as pivotal mediators in neurodegenerative diseases, exerting both pathogenic and therapeutic functions. This review synthesizes current evidence on how sEVs from distinct neural cell types regulate neurodegeneration, neuroprotection, biomarker discovery, and targeted drug delivery ...
Muhammad Waqas Salim, Wei Zhang, Lyndsey Collins‐Praino, Yuling Wang, Andrew Care   +4 more
wiley   +1 more source

Double‐Stranded DNA Sensing cGAS‐STING Immune Signaling in a Rat Co‐Culture Model of the Blood–Brain Barrier

Cell Biochemistry and Function, Volume 44, Issue 6, June 2026.
ABSTRACT Double‐stranded DNA coming from, for example, viruses, bacteria, or apoptotic cells is recognized by the cGAS‐STING signaling pathway comprising the cyclic GMP‐AMP synthase (cGAS) and the stimulator of interferon genes (STING) receptors. The pathway induces type I interferon response and activates transcription of interferon‐stimulated genes ...
András Harazin, Line S. Reinert, Parvez Alam, Lea Hoy, Annemette Boe Marnow, Janni Nielsen, Anna Lorentzen, Daniel E. Otzen, Søren R. Paludan, Morten S. Nielsen   +9 more
wiley   +1 more source

Control of poorly immunogenic tumors with systemic STING agonist‐loaded liposomes targeting cross‐presenting dendritic cells

Clinical &Translational Immunology, Volume 15, Issue 6, 2026.
WH‐peptide‐functionalised liposomes encapsulating STING or RIG‐I agonists target intra‐tumoral Clec9A+ cDC1 and pDC, triggering release of type 1 IFN, presentation of CD4 and CD8 endogenous tumor epitopes, expansion of CTL with help from CD4 T cells in spleen, and tumor cell killing.
Bijun Zeng, Meghna Talekar, Thais Aragao‐Horoiwa, Amy Cameron, Guangzu Zhao, Yulia Zybina, Wendy Blumenschein, Karyn van de Mark, Wittaya Suwakulsiri, Gretchen A Baltus, Riccardo Dolcetti, Ranjeny Thomas   +11 more
wiley   +1 more source

Previously Uncharacterised Aliphatic Amino Acid Positions Modulate the Apparent Catalytic Activity of the EAL Domain of ZMO_1055 and Other Cyclic Di-GMP-Specific EAL Phosphodiesterases. [PDF]

Microb Biotechnol
Cao LY, Zhang X, Bai FW, Römling U.
europepmc   +1 more source

Genetic Determinants Associated With the Biofilm Formation Impairment in Pseudomonas aeruginosa Clinical Isolates. [PDF]

Microbiologyopen
Vvedenskii AV, Ivkina AS, Konanov DN, Savinova TA, Fedorova LS, Ilina EN.   +5 more
europepmc   +1 more source