Results 121 to 130 of about 245,344 (350)

Engineered Peptide Self‐Assembled Nanofibers for Enhanced STING Activation: A Promising Nanodelivery Platform for Immunotherapy of Pediatric Solid Tumors

Advanced Science, EarlyView.
An engineered peptide self‐assembled nanofiber platform, designed to replicate STING–cGAMP binding motifs, facilitates pH‐responsive cytosolic delivery of cGAMP, enhances the endoplasmic reticulum with high efficiency, and robustly activates the STING pathway.
Yubin He, Xiao Lu, Chang qing Yang, Ran Zhang, Bo Wan, Xin Ni, Dong Mei   +6 more
wiley   +1 more source

Adaptation of a Fluorogenic RNA to N1‐Methylpseudouridine Nucleoside Chemistry

Angewandte Chemie, EarlyView.
Several green‐emitting fluorogenic RNA aptamers were evaluated following the replacement of every uridine by N1‐methylpseudouridine (mΨ). Because this modification impaired the function of most aptamers, a directed evolution strategy combining droplet microfluidics, bioinformatics, and rational design was used to identify an aptamer preserving its ...
Patrick P.A. Bertrand, Roger Cubi, Claire Husser, Magali Frugier, Michael Ryckelynck   +4 more
wiley   +2 more sources

Purine-Furan and Purine-Thiophene Conjugates

Molbank, 2018
Furyl and thienyl moieties were introduced into a purine structure to elevate its fluorescence properties, while a trityl group was used to increase the amorphous properties of the purine compounds.
Zigfrīds Kapilinskis, Irina Novosjolova, Māris Turks   +2 more
doaj   +1 more source

Abiotic synthesis of purine and pyrimidine ribonucleosides in aqueous microdroplets

Proceedings of the National Academy of Sciences of the United States of America, 2017
Significance Discovery of an improved prebiotic method for the synthesis of ribonucleosides provides support to theories that posit a central role for RNA in the origin of life. It has been assumed that ribonucleosides arose through an abiotic process in
Inho Nam, H. Nam, R. Zare
semanticscholar   +1 more source

A Postbiotic‐Inducing Ganoderma applanatum Polysaccharide Repairs the Intestinal Barrier via a Phocaeicola vulgatus ‐ Tridecylic Acid Axis

Advanced Science, EarlyView.
This study identifies GAP2, a bioactive polysaccharide fraction derived from Ganoderma applanatum, as a postbiotic inducer that repairs intestinal barrier damage in a gut microbiota‐dependent manner. GAP2 enriches Phocaeicola vulgatus, which degrades GAP2 and promotes tridecylic acid production, triggering Rho/CDC42 signaling and tight‐junction ...
Chuan Zhang, Miaoyu Li, Tiantian Li, Xiaojie Zang, Haiyang Shi, Yaru Liu, Chengcheng Zhang, Jianxin Zhao, Qixiao Zhai, Wei Chen, Fengwei Tian   +10 more
wiley   +1 more source

An Enterococcus faecalis isolate harboring both aerobic and anaerobic uric acid metabolic pathways alleviates hyperuricemia in mice

Food Science and Human Wellness
Probiotics have been demonstrated to be effective and safe for hyperuricemia (HUA) and gout treatment. Hence, identifying microbes with high uric acid- or purine-metabolizing ability is highly important. Due to the high load of uric acid in chicken feces,
Depeng Li, Xinyue Yang, A La Teng Zhu La, Meihong Zhang, Zhengtian Lü, Yuqing Feng, Dan Liu, Yuming Guo, Yongfei Hu   +8 more
doaj   +1 more source

A ROS‐Responsive and Mucoadhesive Thermosensitive Hydrogel Encapsulated with Mizoribine for Synergistic Dry Eye Therapy

Advanced Science, EarlyView.
The ROS‐responsive in situ thermosensitive MZR@SPPP hydrogel system enables dual‐stage drug loading and sustained ocular delivery. Upon administration, it gelates at ocular surface temperature, enhancing ocular adhesion. By scavenging free radicals, restoring NRF2‐mediated antioxidant defense and mitochondrial homeostasis, and suppressing inflammatory ...
Danyi Qin, Jiani Li, Panqin Ma, Shinan Wu, Wenying Guan, Yimin Huang, Ke Feng, Mingyan Wei, Zixuan Yang, Shujia Guo, Caihong Huang, Yun‐Long Wu, Yi Han, Zuguo Liu   +13 more
wiley   +1 more source

Cancer stem-like properties and gefitinib resistance are dependent on purine synthetic metabolism mediated by the mitochondrial enzyme MTHFD2

Oncogene, 2018
Tumor recurrence is attributable to cancer stem-like cells (CSCs), the metabolic mechanisms of which currently remain obscure. Here, we uncovered the critical role of folate-mediated one-carbon (1C) metabolism involving mitochondrial ...
Tatsunori Nishimura, A. Nakata, Xiaoxi Chen, Kurumi Nishi, Makiko Meguro-Horike, Soichiro Sasaki, Kenji Kita, Shin-ichi Horike, Kaori Saitoh, Keiko Kato, Kaori Igarashi, T. Murayama, S. Kohno, C. Takahashi, N. Mukaida, S. Yano, T. Soga, A. Tojo, N. Gotoh   +18 more
semanticscholar   +1 more source

Chromosomal Abnormalities, Drug Sensitivity and Resistance in Hematological Malignancies: A Comprehensive Overview by the Francophone Group of Hematological Cytogenetics (GFCH)

American Journal of Hematology, EarlyView.
ABSTRACT Chromosomal abnormalities have a major clinical impact on hematological malignancies, particularly with regard to treatment strategies. To preserve and consolidate fundamental knowledge in this rapidly evolving field, the Francophone Group of Hematological Cytogenetics (Groupe Francophone de Cytogénétique Hématologique, GFCH) conducted a ...
Florence Nguyen‐Khac, Audrey Bidet, Elise Chapiro, Nathalie Douet‐Guilbert, Jean‐Baptiste Gaillard, Nada Assaf, Nathalie Auger, Hend Chaker, Jasmine Chauzeix, Inge Govaerts, Hippolyte Guérineau, Christine Lefebvre, Pauline Roynard, Hélène Guermouche, Lucienne Michaux, Marie‐Bérengère Troadec, Lauren Véronèse   +16 more
wiley   +1 more source

Emerging Role of Purine Metabolizing Enzymes in Brain Function and Tumors

International Journal of Molecular Sciences, 2018
The growing evidence of the involvement of purine compounds in signaling, of nucleotide imbalance in tumorigenesis, the discovery of purinosome and its regulation, cast new light on purine metabolism, indicating that well known biochemical pathways may ...
M. Garcia-Gil, M. Camici, S. Allegrini, R. Pesi, Edoardo Petrotto, M. Tozzi   +5 more
semanticscholar   +1 more source