Results 171 to 180 of about 68,974 (263)

Actinomycin Derivatives: Structural Diversification and Biological Activities

ChemMedChem, Volume 21, Issue 15, 14 August 2026.
Actinomycins are chromopeptide antibiotics exhibiting remarkable structural diversity and broad bioactivity. This review traces their development from naturally occurring D‐, X‐, A‐, G‐, Y‐, and Z‐type analogs to precursor‐directed, synthetic, and semisynthetic derivatives.
Özge Can, Erdal Bedir
wiley   +1 more source

1‐(Acetylamino)thioxanthones and Derivatives: Synthesis From 1‐Halogenothioxanthones and Biological Properties

European Journal of Organic Chemistry, Volume 29, Issue 30, 12 August 2026.
The conversion of 1‐halogenothioxanthones into 1‐(acetylamino) derivatives and their NaH‐mediated cyclization have been optimized. This rapid method yields thiochromeno[4,3,2‐de]quinol‐2‐ones that exhibit promising in vitro anticancer activity. Institute and/or researcher Bluesky usernames: https://bsky.app/profile/iscr‐rennes.bsky.social.
Najet Ballagha, Frédéric Lassagne, William Erb, Isabelle Rouaud, Sophie Tomasi, Ziad Fajloun, Mona El Samarji, Mohamad Rima, Anamaria Mendonça Santos, Laurent Picot, Valérie Thiéry, Hédi M’Rabet, Florence Mongin   +12 more
wiley   +1 more source

Deruxtecan-based antibody-drug-conjugates induce senescence in HER2-positive breast cancer. [PDF]

Sci Rep
Vezzoli E, Pinos R, Galbiati S, Zambroni D, Dall'Ara C, Locatelli A, Colombo E, Galbardi B, Viganò L, Lavagnino Z, Scielzo C, De Palma C, Bianchini G, Tacchetti C, Daniele T.   +14 more
europepmc   +1 more source

Proteasome inhibitor, ixazomib prevents topoisomerase‐I degradation and reverses irinotecan resistance in colorectal cancer

Molecular Oncology, Volume 20, Issue 8, Page 2114-2128, August 2026.
Ixazomib inhibits proteasome‐mediated degradation of topoisomerase I induced by irinotecan, thereby restoring drug sensitivity and promoting tumor cell death in colorectal cancer. Irinotecan, a topoisomerase I (topoI) inhibitor, is widely used for colorectal cancer, but resistance remains a major clinical challenge.
Yuho Ebata, Koji Ando, Hirofumi Hasuda, Koshi Mimori, Elizabeth C. Unan, Siddhartha Pulukuri, Aahana Tiku, Allison Berger, Eiji Oki, Ajit Bharti, Tomoharu Yoshizumi   +10 more
wiley   +1 more source

G‐Quadruplexes: Structural Diversity and Emerging Roles in Biomolecular Condensation

Advanced Science, Volume 13, Issue 45, 13 August 2026.
G‐quadruplexes (G4s) fold into diverse intra‐ and intermolecular structures, positioning them as emerging regulators of biomolecular condensation. Mechanistically, G4s autonomously form condensates, act as structural platforms to initiate and stimulate condensation, or induce phase transitions.
Wenmeng Wang, Qingqing Xu, Yuxin Zhang, Fang Liu, Guangchao Sui, Dangdang Li   +5 more
wiley   +1 more source

The Roles of Topoisomerases in Transcriptional Regulation. [PDF]

Int J Mol Sci
Fenelon KD, Madabhushi R.
europepmc   +1 more source

Structural Modifications of Nonsteroidal Anti‐Inflammatory Drugs (NSAIDs): New Horizons in Antimicrobial Drug Discovery

Archiv der Pharmazie, Volume 359, Issue 8, August 2026.
This review provides a comprehensive analysis of the molecular modifications applied to NSAIDs to develop novel antimicrobial agents. By focusing on structural changes and their impact on biological activity, the study highlights innovative strategies to combat the global challenge of antimicrobial resistance.
Ebru Koçak Aslan, Ayşe Karagüzel, Miyase Gözde Gündüz   +2 more
wiley   +1 more source

Microbial Primer: Bacterial DNA supercoiling. [PDF]

Microbiology (Reading)
Dorman CJ.
europepmc   +1 more source

Mechanisms That Govern Recombinase Fidelity Control During Eukaryotic Homologous Recombination

BioEssays, Volume 48, Issue 8, August 2026.
The rate of recombinase filament formation controls the fidelity of the homologous recombination reaction by either restricting the length of strand pairing for high‐fidelity repair or increasing the length of strand pairing for more complex outcomes.
Ilayda Korkmaz, J. Brooks Crickard
wiley   +1 more source

Activities of the Novel Bacterial Topoisomerase Inhibitor OSUAB-0284 against the Biothreat Pathogen <i>Bacillus anthracis</i> and Its Type II Topoisomerases. [PDF]

ACS Infect Dis
Mann CA, Halasohoris SA, Gray AM, Chua J, Spencer JL, Curry BJ, Babyak AL, Klimko CP, Cote CK, West JS, Mitton-Fry MJ, Meinig JM, Osheroff N.   +12 more
europepmc   +1 more source