Results 81 to 90 of about 24,465 (266)

Novel Approach to Overcome Osimertinib Resistance Using Bromodomain and Extra‐Terminal Domain Inhibitors

Cancer Science, EarlyView.
Our study found that epigenetic changes, particularly histone modifications regulating FGF1, contribute to osimertinib resistance. Targeting these modifications with BET inhibitors may offer new therapeutic strategies. ABSTRACT Osimertinib, a third‐generation EGFR‐tyrosine kinase inhibitor, is the first‐line therapy for lung cancer harboring EGFR ...
Yosuke Miyashita, Ken Tajima, Kenta Izumi, Naohisa Matsumoto, Daisuke Hayakawa, Ikuko Takeda Nakamura, Isana Katayama, Adityo Wibowo, Hironari Matsuda, Wira Winardi, Bagus Radityo Amien, Yoichiro Mitsuishi, Fumiyuki Takahashi, Kohta Nakamura, Ken Uchibori, Noriko Yanagitani, Takuo Hayashi, Kazuya Takamochi, Kenji Suzuki, Ryohei Katayama, Kazuhisa Takahashi   +20 more
wiley   +1 more source

Harnessing nucleotide metabolism and immunity in cancer: a tumour microenvironment perspective

The FEBS Journal, EarlyView.
This review explores how changes in nucleotide metabolism affect the tumour microenvironment and immune responses in cancer. Here, we discuss the dual role of nucleotide metabolism in promoting cancer cell growth and shaping immune suppression. We highlight how therapies targeting nucleotide pathways can enhance immunotherapy efficacy, offering new ...
Hadil Suleiman, Alexandra Emerson, Peter M. Wilson, Karl A. Mulligan, Robert D. Ladner, Melissa J. LaBonte   +5 more
wiley   +1 more source

Tri-Cyclic Nucleobase Analogs and Their Ribosides as Substrates of Purine-Nucleoside Phosphorylases. II Guanine and Isoguanine Derivatives

Molecules, 2019
Etheno-derivatives of guanine, O6-methylguanine, and isoguanine were prepared and purified using standard methods. The title compounds were examined as potential substrates of purine-nucleoside phosphorylases from various sources in the reverse ...
Alicja Stachelska-Wierzchowska, Jacek Wierzchowski, Michał Górka, Agnieszka Bzowska, Beata Wielgus-Kutrowska   +4 more
doaj   +1 more source

Synthesis of Ribavirin, Tecadenoson, and Cladribine by enzymatic transglycosylation [PDF]

, 2019
Despite the impressive progress in nucleoside chemistry to date, the synthesis of nucleoside analogues is still a challenge. Chemoenzymatic synthesis has been proven to overcome most of the constraints of conventional nucleoside chemistry.
Bavaro T., Cattaneo G., Massone M., Morelli C. F., Rabuffetti M., Semproli R., Speranza G., Ubiali D.   +7 more
core   +1 more source

Oligomeric Symmetry of Purine Nucleoside Phosphorylases

Symmetry
Many enzymes are composed of several identical subunits, which are arranged in a regular fashion and usually comply with some definite symmetry. This symmetry may be approximate or exact and may or may not coincide with the symmetry of crystallographic packing.
Boris Gomaz, Zoran Štefanić
openaire   +2 more sources

First‐in‐class inhibitors of SbnA reduce siderophore production in Staphylococcus aureus

The FEBS Journal, EarlyView.
The production of the iron‐chelating compound staphyloferrin B by the most invasive S. aureus strains is crucial for colonization, virulence, and survival in the host. Staphyloferrin B biosynthesis is carried out by eight enzymes, the Sbn system, that offer an appealing source of potential targets for the development of antimicrobials.
Sarah Hijazi, Monica Cozzi, Somayeh Asgharpour, Omar De Bei, Serena Faggiano, Francesco Marchesani, Luca Ronda, Marialaura Marchetti, Eleonora Gianquinto, Mariacristina Failla, Gauthier Trèves, Loretta Lazzarato, Francesca Spyrakis, Barbara Campanini, Emanuela Frangipani, Stefano Bettati   +15 more
wiley   +1 more source

Sexual Selection on Non‐Ornamental Traits Is Underpinned by Evidence of Genetic Constraints on Sex‐Biased Expression in Dusky Pipefish

Molecular Ecology, EarlyView.
ABSTRACT Species lacking distinct secondary sex characteristics, such as differences in size or morphology, are often thought to experience lower levels of sex‐specific selection in comparison to highly sexually dimorphic organisms. However, monomorphism in classic visible traits could be a result of genetic or physiological constraints that prevent ...
Nicole M. Tosto, Emily Rose, Heather D. Mason, Judith E. Mank, Sarah P. Flanagan   +4 more
wiley   +1 more source

Nucleoside-dependent synthesis of organic phosphorus compounds by rat liver nuclei [PDF]

, 1967
a) A modified procedure of the WIDNELL and TATA8 method yields rat liver nuclei manifesting a high degree of purity and activity. b) These nuclei contain a nucleoside-dependent phosphorylating activity that is readily released and apparently unrelated to
Utsumi, Kozo
core   +1 more source

Phase I dose-escalating trial of Escherichia coli purine nucleoside phosphorylase and fludarabine gene therapy for advanced solid tumors.

Annals of Oncology, 2015
BACKGROUND The use of Escherichia coli purine nucleoside phosphorylase (PNP) to activate fludarabine has demonstrated safety and antitumor activity during preclinical analysis and has been approved for clinical investigation.
E. Rosenthal, T. Chung, W. Parker, P. Allan, L. Clemons, Deborah Lowman, Jeong S. Hong, F. R. Hunt, J. Richman, R. Conry, K. Mannion, W. Carroll, L. Nabell, E. Sorscher   +13 more
semanticscholar   +1 more source

Extracellular ATP: an emerging multifaceted regulator of plant fitness

Plant Biotechnology Journal, EarlyView.
Summary Adenosine 5′‐triphosphate (ATP) is the energy currency of living organisms and the primary form of organic phosphate (Po) involved in cellular metabolism. In plants, some ATP is released into the extracellular matrix (ECM) in response to various stimuli, where it functions as extracellular ATP (eATP), a key signalling molecule.
De Peng Yuan, Daewon Kim, Yuan Hu Xuan
wiley   +1 more source