Results 81 to 90 of about 564,515 (340)

Dammarenediol II enhances etoposide‐induced apoptosis by targeting O‐GlcNAc transferase and Akt/GSK3β/mTOR signaling in liver cancer

Molecular Oncology, EarlyView.
Etoposide induces DNA damage, activating p53‐dependent apoptosis via caspase‐3/7, which cleaves PARP1. Dammarenediol II enhances this apoptotic pathway by suppressing O‐GlcNAc transferase activity, further decreasing O‐GlcNAcylation. The reduction in O‐GlcNAc levels boosts p53‐driven apoptosis and influences the Akt/GSK3β/mTOR signaling pathway ...
Jaehoon Lee, Byung‐Cheol Han, Gi‐Bang Koo, Jihye Park, Mijin Kwon, Young Bin Park, Jae‐Mun Choi, Seung‐Ho Lee, Sangho Roh   +8 more
wiley   +1 more source

Analysis of amino acid motif of penicillin-binding proteins 1a, 2b, and 2x in invasive Streptococcus pneumoniae nonsusceptible to penicillin isolated from pediatric patients in Casablanca, Morocco

BMC Research Notes, 2018
Objectives This study aimed to investigate the nature of the amino acid motifs found in PBPs of Streptococcus pneumoniae isolates in invasive diseases from pediatric patients at Casablanca, Morocco.
Idrissa Diawara, Kaotar Nayme, Khalid Katfy, Abouddihaj Barguigua, Mohamed Kettani-Halabi, Houria Belabbes, Mohammed Timinouni, Khalid Zerouali, Naima Elmdaghri   +8 more
doaj   +1 more source

Characterization and Clonal Diffusion of Ceftaroline Non-Susceptible MRSA in Two Hospitals in Central Italy

Antibiotics, 2021
Background: Ceftaroline represents a novel fifth-generation cephalosporin to treat infections caused by methicillin-resistant Staphylococcus aureus (MRSA).
Gianluca Morroni, Simona Fioriti, Federica Salari, Andrea Brenciani, Lucia Brescini, Marina Mingoia, Eleonora Giovanetti, Antonella Pocognoli, Andrea Giacometti, Elisa Molinelli, Annamaria Offidani, Oriana Simonetti, Oscar Cirioni   +12 more
doaj   +1 more source

MCM8-9 complex promotes resection of double-strand break ends by MRE11-RAD50-NBS1 complex. [PDF]

, 2015
MCM8-9 complex is required for homologous recombination (HR)-mediated repair of double-strand breaks (DSBs). Here we report that MCM8-9 is required for DNA resection by MRN (MRE11-RAD50-NBS1) at DSBs to generate ssDNA.
Dutta, Anindya, Handa, Naofumi, Im, Jun-Sub, Kowalczykowski, Stephen C, Lee, Kyung Yong, Park, Jonghoon, Shibata, Etsuko   +6 more
core   +1 more source

CD4+ Th immunogenicity of the Ascaris spp. secreted products [PDF]

, 2020
Ascaris spp. is a major health problem of humans and animals alike, and understanding the immunogenicity of its antigens is required for developing urgently needed vaccines.
Bertazzon, Miriam, Ebner, Friederike, Freund, Christian, Hartmann, Susanne, Midha, Ankur, Morrison, Eliot, Álvaro-Benito, Miguel   +6 more
core   +1 more source

TRAIL‐PEG‐Apt‐PLGA nanosystem as an aptamer‐targeted drug delivery system potential for triple‐negative breast cancer therapy using in vivo mouse model

Molecular Oncology, EarlyView.
Aptamers are used both therapeutically and as targeting agents in cancer treatment. We developed an aptamer‐targeted PLGA–TRAIL nanosystem that exhibited superior therapeutic efficacy in NOD/SCID breast cancer models. This nanosystem represents a novel biotechnological drug candidate for suppressing resistance development in breast cancer.
Gulen Melike Demirbolat, Aslihan Kucuk, Omer Erdogan, Samed Ozer, Bensu Kozan, Tugba Cuceli, Erkan Gumus, Evrim Cevik, Ozge Cevik   +8 more
wiley   +1 more source

Cephem Potentiation by Inactivation of Nonessential Genes Involved in Cell Wall Biogenesis of ß-Lactamase-Producing Escherichia coli [PDF]

, 2017
Reversal of antimicrobial resistance is an appealing and largely unexplored strategy in drug discovery. The objective of this study was to identify potential targets for “helper” drugs reversing cephem resistance in Escherichia coli strains producing β ...
Baker, K R, Guardabassi, L, Jana, B, Sigurðardóttir, H H   +3 more
core   +2 more sources

Regulation of penicillin-binding protein activity: description of a methicillin-inducible penicillin-binding protein in Staphylococcus aureus [PDF]

Antimicrobial Agents and Chemotherapy, 1985
The penicillin-binding proteins (PBPs) of two methicillin-resistant strains of Staphylococcus aureus (R2 and R1) were analyzed in cells grown in the absence and in the presence of methicillin. Under the former condition, strain R2 showed the typical PBP pattern of beta-lactam-susceptible strains, while strain R1 showed a markedly increased amount of ...
ROSSI L, TONIN, ENRICO ANGELO, CHENG YR, FONTANA R.   +3 more
openaire   +4 more sources

The PI3Kδ inhibitor roginolisib (IOA‐244) preserves T‐cell function and activity

Molecular Oncology, EarlyView.
Identification of novel PI3K inhibitors with limited immune‐related adverse effects is highly sought after. We found that roginolisib and idelalisib inhibit chronic lymphocytic leukemia (CLL) cells and Treg suppressive functions to similar extents, but roginolisib affects cytotoxic T‐cell function and promotion of pro‐inflammatory T helper subsets to a
Elise Solli, Alessio Bevilacqua, Mathias Wenes, Denis Migliorini, Lars van der Veen, Sigrid S Skånland, Giusy Di Conza, Kjetil Taskén   +7 more
wiley   +1 more source

Patchy Amphiphilic Dendrimers Bind Adenovirus and Control Its Host Interactions and in Vivo Distribution

, 2019
The surface of proteins is heterogeneous with sophisticated but precise hydrophobic and hydrophilic patches, which is essential for their diverse biological functions.
Andreozzi, P., Chakrabortty, S., D’Alicarnasso, M., Frank, L., Hammer, B., Kreppel, F., Krol, S., Kuan, S., Landfester, K., Li, L., Liu, W., Müllen, K., Pelliccia, M., Simon, J., Stellacci, F., Wagner, J., Weil, T., Wu, Y.   +17 more
core   +1 more source