Results 91 to 100 of about 7,255 (192)

Novel mixed-linkage β-glucan activated by c-di-GMP in Sinorhizobium meliloti [PDF]

, 2015
An artificial increase of cyclic diguanylate (c-di-GMP) levels in Sinorhizobium meliloti 8530, a bacterium that does not carry known cellulose synthesis genes, leads to overproduction of a substance that binds the dyes Congo red and calcofluor.
Araujo Farias, Gabriela de, Lloret, Javier, Pérez-Mendoza, Daniel, Rodríguez Carvajal, Miguel Ángel, Romero-Jiménez, Lorena, Sanjuan, Juan, Trinidad Gallegos, Maria   +6 more
core   +1 more source

Bacterial Outer Membrane Vesicles in Potentiating Cancer Vaccines: Progress and Prospects

Advanced Science, EarlyView.
Bacterial outer membrane vesicles (OMVs) have emerged as versatile platforms for cancer vaccine development owing to their intrinsic immunostimulatory properties and high engineering flexibility. This review summarizes OMV biology, immune mechanisms, and engineering strategies that enhance vaccine efficacy, discusses key translational challenges, and ...
Jiabeini Zhang, Tianyu Shao, Fengjiang Qu, Caiyun Bai, Sijie Li, Pin Gao, Wenna Li, Keman Cheng, Xiao Zhao, Zhimin Fan   +9 more
wiley   +1 more source

Engineering Approaches to Modify Immunomodulatory Functions of Mesenchymal Stromal Cells (MSCs): Tissue Regeneration and Clinical Application

Advanced Science, EarlyView.
Mesenchymal stromal cells (MSCs) show promise for treating immune‐related disorders through immunomodulation and tissue regeneration. This review gives a brief overview of current clinical approval of MSC therapies. It also discussed how bioengineering, including genetic modification, biomaterial delivery, extracellular vesicles, and iPSC‐derived MSCs,
Sichen Yang, Kejia Li, Ning Wang, Zhen Li, Zhiyong Zhang, Rocky S. Tuan, Yangzi Jiang   +6 more
wiley   +1 more source

Dynamic Executors of Bacterial Signals: Functional Versatility and Regulatory Networks of c-di-GMP Effectors

Biomolecules
Cyclic di-GMP (c-di-GMP), a universal second messenger in bacteria, orchestrates a wide array of essential life processes. Its intracellular dynamics are meticulously regulated by diguanylate cyclases (DGCs) and phosphodiesterases (PDEs), ensuring ...
Jia Jia, Ge Yun, Bingxin Liu, Xinxin Li, Meiling Jiang, Xinlu Yu, Jing Zhang, Yufei Han, Dan Liu, Junlong Zhao, Yuanyuan Wang, Gukui Chen   +11 more
doaj   +1 more source

Dual Covalent Targeting of STING Cysteines 292/309 Disrupts Functional Oligomerization and Enables Potent Antagonist Development

Advanced Science, EarlyView.
We report a rational design strategy for STING antagonists by dual covalent targeting of Cys292/309 in its C‐terminal domain, directly preventing functional oligomerization. Through covalent warhead repurposing, we identified P005091 and revealed its unique dual‐cysteine mechanism.
Yuxuan Zhao, Ling Huang, Wenjing Qin, Bin Zhang, Yang Yang, Xue Chen, Xiaoquan Wang, Weilin Zhou, Feiyang Chen, Zhenyu Li, Liyuan Le, Yiqiu Zhang, Zhen Xiang, Lu Zhang, Fei Wang, Dan Lei, Zi‐zhe Cai, Ying Gao, Yong Chen, Xuecen Wang, Junmin Quan, Shuixing Zhang, Xianzhang Bu, Xin Yue   +23 more
wiley   +1 more source

Toolbox of FRET-based c-di-GMP biosensors and its FRET-To-Sort application for genome-wide mapping of c-di-GMP regulation

Nature Communications
C-di-GMP is a widespread second messenger that coordinates transitions between different lifestyles in bacteria. Levels of c-di-GMP are controlled by complex regulatory networks, and they can vary dynamically over a wide range of concentrations.
Liyun Wang, Gabriele Malengo, Ananda Sanches-Medeiros, Xuanlin Chen, Julian Pietsch, Nataliya Teteneva, Silvia González Sierra, Ming C. Hammond, Victor Sourjik   +8 more
doaj   +1 more source

EEPD1 Inhibition Unleashes Antitumor Immunity in Colorectal Cancer by Activating the cGAS‐STING Pathway

Advanced Science, EarlyView.
In colorectal cancer, high expression of the DNA repair protein EEPD1 correlates with immune exclusion and poor prognosis. This study demonstrates that EEPD1 depletion induces genomic instability, leading to cytosolic DNA accumulation and subsequent activation of the cGAS‐STING‐type I interferon pathway. This cascade remodels the tumor microenvironment
Liyun Huo, Chong Wu, Xiaobo Li, Caina Ma, Jiamin Huang, Zishuo Chen, Weiling He, Tianyu Tao, Weijing Zhang   +8 more
wiley   +1 more source

The chemotherapeutic agent DMXAA as a unique IRF3-dependent type-2 vaccine adjuvant [PDF]

, 2013
5,6-Dimethylxanthenone-4-acetic acid (DMXAA), a potent type I interferon (IFN) inducer, was evaluated as a chemotherapeutic agent in mouse cancer models and proved to be well tolerated in human cancer clinical trials.
Akira, S, Aoshi, T, Coban, C, Dessailly, BH, Ishii, KJ, Ito, J, Jounai, N, Kobiyama, K, Kuroda, E, Mizuguchi, K, Ohata, K, Tang, CK   +11 more
core   +2 more sources

Nanomedicine Meets Immunotherapy: Advancing Adoptive Cell Therapy with Nanoparticles in the Treatment of Cancer with Sustainability Perspectives

Advanced Science, EarlyView.
This review surveys nanoparticle‐based strategies to enhance adoptive cell therapy, particularly CAR‐T cell approaches, in solid tumor treatment. It describes how nanoparticles can improve tumor immunogenicity and T‐cell infiltration while reducing toxicity, and how they enable in vivo CAR‐T cell generation.
Erica Frostegård, Tatiana Bobrova, Amalie Leinebø, Thibault Leray, Shayamita Ghosh, Lorena García‐Hevia, Chiara Puccinelli, Lorenzo Riccio, Jacopo Sorani, Davide Bonifazi, Julien Caumartin, Emmanuel Donnadieu, Florence Gazeau, Roland Hischier, Else Marit Inderberg, Mónica L. Fanarraga, Maria Loustau, Bernd Nowack, Sébastien Wälchli, Cécilia Ménard‐Moyon   +19 more
wiley   +1 more source

Low levels of the second messenger c-di-GMP enhance tolerance and resistance to meropenem in Pseudomonas aeruginosa

Frontiers in Cellular and Infection Microbiology
BackgroundThe carbapenem antibiotic meropenem is often used to treat life-threatening infections caused by Pseudomonas aeruginosa. Previous studies have shown that the susceptibility of P.
Tarcisio Brignoli, Silvia Ferrara, Silvia Ferrara, Edoardo Labrini, Giovanni Bertoni   +4 more
doaj   +1 more source