Results 41 to 50 of about 7,605 (170)

Membrane Fusion‐Mediated Cytosolic Delivery of Threose Nucleic Acids via Homotypic Nanoparticles Overcomes Drug Resistance in Triple‐Negative Breast Cancer

Advanced Science, EarlyView.
This study introduces a biomimetic “nanofusion” platform that integrates the biostability of threose nucleic acids (TNA) with homotypic cell‐membrane cloaking to combat drug‐resistant TNBC. By leveraging a non‐canonical membrane‐fusion pathway for direct cytosolic delivery, the platform bypasses endosomal sequestration. To achieve potent AKT2 silencing
Wei Zheng, Tristan Juin Han Chang, Xinchao Li, Zhongqi Zhou, Chung Tin, Kenward Vong, Pierre Karam, Pik Kwan Lo   +7 more
wiley   +1 more source

Nicotinamide Riboside Vitamin B3 Mitigated C26 Adenocarcinoma–Induced Cancer Cachexia

Frontiers in Pharmacology, 2021
Nicotinamide riboside (NR), vitamin B3, is a substrate for nicotinamide adenine dinucleotide (NAD+)–consuming enzymes and is a coenzyme for hydride-transfer enzymes, including adenosine diphosphate (ADP)–ribose transferases, poly (ADP-ribose) polymerases,
Jong Min Park, Young Min Han, Ho Jae Lee, Yong Jin Park, Ki Baik Hahm, Ki Baik Hahm   +5 more
doaj   +1 more source

Oncogenic KRAS Rewires Stress Granule Dynamics: Mechanisms and Therapeutic Opportunities

The Kaohsiung Journal of Medical Sciences, EarlyView.
ABSTRACT Stress granules (SGs) are dynamic, membrane‐less structures that form in response to various cellular stresses, including metabolic, oxidative, and therapeutic challenges. They function as adaptive hubs and reorganize protein synthesis and signaling networks to help cells survive under stress. In cancer, these condensates are often hijacked to
Msimisi Ndzinisa, Birhanetensay Masresha Altaye, Yuh‐Pyng Sher   +2 more
wiley   +1 more source

SIRT Family: Biological Functions and Therapeutic Targets

MedComm, Volume 7, Issue 8, August 2026.
SIRT1–SIRT7 networks from transgenic mice to human‑relevant therapeutic targets. SIRT1–SIRT7 form an isoform‑, organ‑, and disease‑specific regulatory network. Transgenic Sirt1–7 mouse models define central regulatory SIRTs (SIRT1, SIRT3, SIRT6), context‑dependent modifiers (SIRT2, SIRT4, SIRT5, SIRT7), and their key mechanisms and target organs. These
Jia‐Yi Wang, Feng‐Li Jiang, Fang‐Yuan Zhang, Dong‐Hui Huang, Xiao‐Ying Li, Song Gao, Hua You, Qi‐Jun Wu, Huan‐Huan Chen, Ting‐Ting Gong   +9 more
wiley   +1 more source

Scrophularia buergeriana Extract Improves Memory Impairment via Inhibition of the Apoptosis Pathway in the Mouse Hippocampus

Applied Sciences, 2020
Scrophularia buergeriana (SB) Miq. (Scrophulariaceae) has been used to help cure swelling and fever and has reported antioxidant and neuro-protective effects.
Hae Jin Lee, Dae Young Lee, Hae Lim Kim, Seung Hwan Yang   +3 more
doaj   +1 more source

Nucleotide Metabolism in Health and Disease

MedComm, Volume 7, Issue 8, August 2026.
Nucleotide metabolism, including de novo synthesis, salvage pathways, and catabolism, when dysregulated contributes to cancer, immune disorders, metabolic and urological diseases, and radiation injury. Metabolites such as adenosine, cGAMP, NAD, and cAMP and enzymes like RNR are promising therapeutic targets and biomarkers.
Xiaoying Zhao, Yiyu Zeng, Yike Xu, Shu Rao, Mouna Khouchani, Hassna Soummane, Jingyi Li, Rui Liu   +7 more
wiley   +1 more source

Partial response to niraparib in combination with tislelizumab in a patient with metastatic undifferentiated tonsillar carcinoma: a case report and literature review

Frontiers in Oncology, 2023
Undifferentiated tonsillar carcinoma is an extremely rare head and neck cancer. The treatment options are challenging due to insensitivity to chemotherapy and easy development of drug resistance.
Jing Zhang, Jing Zhang, Zi Dai, Zi Dai, Pei Liao, Pei Liao, Jieshan Guan   +6 more
doaj   +1 more source

Recent Advances in the Molecular Mechanisms of Bacterial Anti‐Phage Defence Systems

Microbial Biotechnology, Volume 19, Issue 8, August 2026.
Panoptes as an example for an antiphage system consists of OptS producing a cyclic dinucleotide that prevents activation of OptE, a transmembrane protein. Phage T4 infection introduces the sponge protein Acb2 that adsorbs the cyclic dinucleotide thus activating OptE which disrupts the cell membrane aborting phage infection.
Harald Brüssow
wiley   +1 more source

Delineation of molecular characteristics in pediatric PFA ependymoma involving rare osseous and pulmonary metastases: A case report and literature review

Frontiers in Oncology, 2022
Ependymoma is the third most common pediatric primary brain tumor, with its most aggressive subtype being posterior fossa group A (PFA). Extraneural metastasis of pediatric PFA ependymoma is rare.
Mading Zhou, Leiming Wang, Peng Sun, Yutong Liu, Ge Chen, Gao Zeng   +5 more
doaj   +1 more source

Demonstration of high molecular weight poly (adenosine diphosphate ribose)

Nucleic Acids Research, 1978
An electrophoretic system was established that resolves poly(adenosine diphosphate ribose), enzymatically synthesized polymer from NAD+, by size difference of one residue on polyacrylamide gel. The existence of a polymer of at least 65 residues was demonstrated by band counting in this system. The polymer showed a heterogeneous size distribution on the
M, Tanaka, K, Hayashi, H, Sakura, M, Miwa, T, Matsushima, T, Sugimura   +5 more
openaire   +3 more sources