Results 81 to 90 of about 1,020,918 (293)

Purine metabolism regulates DNA repair and therapy resistance in glioblastoma

Nature Communications, 2020
Targeting genotype-independent abnormalities may overcome therapy resistance in glioblastoma despite intratumoral genomic heterogeneity. Here, the authors show that glioblastoma radiation resistance is promoted by purine metabolism and can be overcome by
Weihua Zhou, Yangyang Yao, Andrew J. Scott, Kari Wilder-Romans, Joseph J. Dresser, Christian K. Werner, Hanshi Sun, Drew Pratt, Peter Sajjakulnukit, Shuang G. Zhao, Mary Davis, Barbara S. Nelson, Christopher J. Halbrook, Li Zhang, Francesco Gatto, Yoshie Umemura, Angela K. Walker, Maureen Kachman, Jann N. Sarkaria, Jianping Xiong, Meredith A. Morgan, Alnawaz Rehemtualla, Maria G. Castro, Pedro Lowenstein, Sriram Chandrasekaran, Theodore S. Lawrence, Costas A. Lyssiotis, Daniel R. Wahl   +27 more
doaj   +1 more source

Purine nucleotide metabolism in lymphocytes of B-cell chronic lymphocytic leukemia patients

, 1995
Purine nucleotides were studied in human peripheral blood lymphocytes from normal subjects and patients with chronic B-cell lymphocytic leukemia (B-CLL). Nucleotide content was determined by high performance liquid chromatography (HPLC). The overall rate
Tabucchi A., Leoncini R., Consolmagno E., Pizzichini M., Vannoni D., Dispensa E., Pagani R., Carlucci F., Marinello E.   +8 more
core   +1 more source

Deregulation of purine metabolism in Alzheimer's disease [PDF]

, 2019
The neuroprotective role of adenosine and the deregulation of adenosine receptors in Alzheimer's disease (AD) have been extensively studied in recent years. However, little is known about the involvement of purine metabolism in AD.
Pujol Onofre, Aurora, Portero-Otin, Manuel, Pamplona, Reinald, Schlüter, Agatha, Ferrer, Isidro (Ferrer Abizanda), Garcia Esparcia, Paula, Moreno Castro, Jesús, Ansoleaga, Belén, Jove, Mariona   +8 more
core   +1 more source

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

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

Purine metabolism in plant pathogenic fungi

Frontiers in Microbiology
In eukaryotic cells, purine metabolism is the way to the production of deoxyribonucleic acid (DNA) and ribonucleic acid (RNA) and plays key roles in various biological processes.
Manli Sun, Pengbo Dai, Zhiyan Cao, Jingao Dong   +3 more
doaj   +1 more source

Metabolism of Purine Alkaloids and Xanthine in Leaves of Maté ()

Natural Product Communications, 2015
Accumulation and metabolism of purine alkaloids in leaves of maté ( Ilex paraguariensis ) were investigated. In winter, leaves accumulated caffeine but not theobromine, indicating that caffeine is the end product of purine alkaloid synthesis in maté.
Yuling Yin, Riko Katahira, Hiroshi Ashihara   +2 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

Purine Metabolism in Toxoplasma gondii

Journal of Biological Chemistry, 1989
We have studied the incorporation and interconversion of purines into nucleotides by freshly isolated Toxoplasma gondii. They did not synthesize nucleotides from formate, glycine, or serine. The purine bases hypoxanthine, xanthine, guanine, and adenine were incorporated at 9.2, 6.2, 5.1, and 4.3 pmol/10(7) cells/h, respectively.
E C, Krug, J J, Marr, R L, Berens
openaire   +2 more sources

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