Results 61 to 70 of about 119 (117)

Self‐Assembling Cationic Lipopeptides for the Construction of Functional Vesicular Gene‐Delivery Systems

open access: yesSmall, EarlyView.
Cationic lipopeptides self‐assemble into stable, cell‐like vesicles that merge peptide programmability with lipid self‐organization. These biocompatible compartments efficiently sequester and deliver nucleic acids, enabling high transfection efficiency with low‐toxicity in both HEK293T cells and mesenchymal stem cells (MSCs).
Federica A. Souto‐Trinei   +4 more
wiley   +1 more source

DNA‐Enzyme Hybrid Nanostructures: Functional Materials to Modulate Enzymatic Activity

open access: yesSmall, EarlyView.
DNA–enzyme hybrid nanostructures enable precise spatial and stoichiometric control over enzyme organization, offering a powerful platform to modulate catalytic activity. This review critically evaluates key mechanistic hypotheses, including proximity effects, microenvironment changes, confinement, and stabilization, as well as highlighting ...
Manar Elnaggar, Amelie Heuer‐Jungemann
wiley   +1 more source

Staging concept for aging management: Definition, mechanism, and coping strategies

open access: yesVIEW, EarlyView.
We divided the overall aging stage into “pre‐aging”, “aging compensation”, and “aging disability”. For each stage, we delineate the clinical presentations, biological phenomena, theoretical underpinnings, and key management priorities. Abstract Aging, as a gradual and largely irreversible biological process, characterized by declining organismal ...
Zhonghan Wang   +6 more
wiley   +1 more source

Epac1 Alleviates Senescence in Auditory Hair Cells via the Ferroptosis

open access: yesWorld Journal of Otorhinolaryngology - Head and Neck Surgery, EarlyView.
ABSTRACT Objectives The aim of this study was to investigate the changes in Epac1 and ferroptosis‐related proteins in aged mice and the House Ear Institute‐Organ of Corti 1 (HEI‐OC1) cells, with the goal of elucidating their potential role in age‐related hearing loss. Methods The expression of Epac1 in the cochlea of C57BL/6J mice was examined by using
Wen‐Jun An   +7 more
wiley   +1 more source

AlignPCA‐2D: PCA‐reduced Euclidean vector alignment for 2D classification in cryo‐EM

open access: yesActa Crystallographica Section D, EarlyView.
We introduce AlignPCA‐2D, a PCA‐space Euclidean alignment method for rapid and interpretable 2D classification of cryo‐EM particle images. The approach preserves essential structural variability while greatly reducing computational cost, offering a lightweight alternative to existing large‐scale cryo‐EM classification pipelines.Cryogenic electron ...
E. Ramírez-Aportela   +6 more
wiley   +1 more source

Microbial and Metabolic Correlates of Endometrial Dysfunction in Polycystic Ovary Syndrome: A Translational Study

open access: yesBJOG: An International Journal of Obstetrics &Gynaecology, EarlyView.
ABSTRACT Objective Women with polycystic ovary syndrome (PCOS) exhibit a substantially increased risk of miscarriage, yet the underlying mechanisms remain inadequately understood. This study aimed to investigate whether specific gut microbial dysbiosis and metabolic disturbance are associated with and may potentially contribute to endometrial ...
Mengyu Jing   +9 more
wiley   +1 more source

Amphibian‐Derived Peptide OA‐AL14 Alleviates UVB‐Induced Skin Photoaging via Autophagy Activation Mediated by the AMPK/mTOR Pathway

open access: yesIntegrative Zoology, EarlyView.
The schematic diagram illustrates that the amphibian‐derived peptide OA‐AL14 protects against UVB‐induced skin photoaging through a dual mechanism: activating the Nrf2 pathway to counteract oxidative stress and modulating the AMPK/mTOR axis to induce protective autophagy. ABSTRACT Skin photoaging, primarily driven by ultraviolet B (UVB) radiation, is a
Ying Peng   +16 more
wiley   +1 more source

Rapid Human Skin Barrier Disruption by Sodium Dodecyl Sulfate and Associated Molecular Mechanisms

open access: yesAllergy, EarlyView.
Short‐term exposure to SDS rapidly disrupts human skin barrier integrity within minutes, as detected by real‐time electrical impedance spectroscopy. SDS‐induced barrier dysfunction is driven by oxidative stress, leading to suppression of immune/barrier mediators and activation of stress, lipid remodeling, and epidermal differentiation pathways ...
Manru Li   +10 more
wiley   +1 more source

Mesenchymal Stem Cells From a Klinefelter Syndrome Patient: Functional Characterization and Therapeutic Implications

open access: yesAndrology, EarlyView.
ABSTRACT Background Cell therapy, particularly those utilizing mesenchymal stem/stromal cells (MSCs), is gaining traction as a therapeutic option for regenerative treatment in patients with limited therapeutic options. Although the safety of MSC‐based interventions is well established, uncertainties remain regarding how genetic abnormalities and ...
Marzena Zychowicz   +12 more
wiley   +1 more source

Targeting hexokinase 2 to induce breast cancer cell senescence

open access: yesBritish Journal of Pharmacology, EarlyView.
Background and Purpose Hexokinase 2 (HK2) is a key enzyme linked to high tumour cell proliferation. Its inhibitors such as 3‐bromopyruvic acid (3‐BP) induce cancer cell death, highlighting HK2 modulation as potential anti‐cancer treatment. However, standard chemotherapies often cause the emergence of senescent cancer cells, which goes along with cell ...
Helmut Bischof   +8 more
wiley   +1 more source

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