Engineered Bacterial Outer Membrane Vesicles-Based Doxorubicin and CD47-siRNA Co-Delivery Nanoplatform Overcomes Immune Resistance to Potentiate the Immunotherapy of Glioblastoma.

Apart from the blood-brain barrier (BBB), the efficacy of immunotherapy for glioblastoma (GBM) is limited by the presence of intrinsic and adaptive immune resistance, implying that co-delivery of various immunotherapeutic agents or simultaneous regulation of different cells is urgently needed. Bacterial outer membrane vesicles (OMVs) offer a unique advantage in the treatment of GBM, owing to their multifunctional properties as carriers and immune adjuvants and their ability to cross the BBB. However, traditional OMVs can lead to toxic side effects and disruption of tight junctions in the BBB.

Copper-Doped NiOOH for the Electrocatalytic Conversion of Glycerol to Formate via the Inhibition of the Oxygen Evolution Reaction.

The combination of the electrocatalytic glycerol oxidation reaction (GOR) with the cathodic hydrogen evolution reaction serves to reduce the anodic overpotential, thereby facilitating the efficient production of hydrogen. However, the GOR is confined to a narrow potential range due to the competition of the oxygen evolution reaction (OER) at high potential. Therefore, it is necessary to develop a catalyst with a high Faraday efficiency of formate (FE) over a wide potential range.

Solid-State Sodium-Ion Batteries: Theories, Challenges and Perspectives.

Sodium-ion batteries have abundant sources of raw materials, uniform geographical distribution, and low cost, and it is considered an important substitute for lithium-ion batteries. Thereinto, solid-state sodium-ion batteries have the advantages of low raw material cost, high safety, and high energy density, and it has shown great potential for application in the fields of mobile power, electric vehicles, and large-scale energy storage systems. However, the commercial development and large-scale application of solid-state sodium-ion batteries urgently need to address issues such as the low room-temperature ionic conductivity of solid electrolytes, high interfacial charge transfer impedance, and poor compatibility and contact between the solid electrolytes and the electrodes.

Integrated network pharmacology and transcriptomic approach reveal the role of equol in reducing colorectal cancer via regulating multiple cell cycle genes in HCT116 cells.

Equol is an isoflavone-derived metabolite known to exhibit strong estrogenic and antioxidant activities. The aim of this paper is twofold: first, to confirm the anticancer potential of equol against colorectal cancer, and second, to reveal the underlying mechanisms. After treatment with 40 μg/mL equol, cell proliferation, cell migration, and colony formation of HCT116 colon cancer cells were inhibited.

Engineering Lattice Oxygen Regeneration of NiFe Layered Double Hydroxide Enhances Oxygen Evolution Catalysis Durability.

The lattice oxygen mechanism (LOM) endows NiFe layered double hydroxide (NiFe-LDH) with superior oxygen evolution reaction (OER) activity, yet the frequent evolution and sluggish regeneration of lattice oxygen intensify the dissolution of active species. Herein, we overcome this challenge by constructing the NiFe hydroxide/NiMo alloy (NiFe-LDH/NiMo) heterojunction electrocatalyst, featuring the NiMo alloy as the oxygen pump to provide oxygenous intermediates and electrons for NiFe-LDH. The released lattice oxygen can be timely offset by the oxygenous species during the LOM process, balancing the regeneration of lattice oxygen and assuring the enhancement of the durability.

Electron-rich SnO promote CO activation for stable electrocatalytic CO reduction.

Electrocatalytic CO reduction reaction (CORR) to formate offers a promising route for carbon neutralization, but its reactivity is largely compromised due to the competitive hydrogen evolution reaction (HER) accompanying the activation of CO at high potentials. Herein, we modulated the charge density around Sn atoms by introducing LaSnO into SnO, with the rich grain boundaries and fast electron transport of the heterostructure promoting CO reduction. Combined theoretical calculations and in situ electrochemical attenuated total reflection Fourier-transform infrared spectroscopy (ATR-FTIR) characterization revealed enhanced activation of CO and adsorption of *OCHO intermediates by the constructed electron-rich SnO.

Recycling of Spent Lithium Iron Phosphate Cathodes: Challenges and Progress.

The number of spent lithium iron phosphate (LiFePO, LFP) batteries will increase sharply in the next few years, owing to their large market share and development potential. Therefore, recycling of spent LFP batteries is necessary and urgent from both resource utilization and environmental protection standpoints. In this review, the significance of pretreatment for LFP recycling is first underscored, and its technical challenges and recent advancements are presented.

Monocytes Reprogrammed by 4-PBA Potently Contribute to the Resolution of Inflammation and Atherosclerosis.

Background: Chronic inflammation initiated by inflammatory monocytes underlies the pathogenesis of atherosclerosis. However, approaches that can effectively resolve chronic low-grade inflammation targeting monocytes are not readily available. The small chemical compound 4-phenylbutyric acid (4-PBA) exhibits broad anti-inflammatory effects in reducing atherosclerosis.

Immune-enhancing neutrophils reprogrammed by subclinical low-dose endotoxin in cancer treatment.

Despite the re-emergence of the pioneering "Coley's toxin" concept in anti-cancer immune therapies highlighted by check-point inhibitors and CAR-T approaches, fundamental mechanisms responsible for the immune-enhancing efficacy of low-dose "Coley's toxin" remain poorly understood. This study examines the novel reprogramming of immune-enhancing neutrophils by super-low dose endotoxin conducive for anti-cancer therapies. Through integrated analyses including scRNAseq and functional characterizations, we examined the efficacy of reprogrammed neutrophils in treating experimental cancer.

Recent advances in biomimetic strategies for the immunotherapy of glioblastoma.

Immunotherapy is regarded as one of the most promising approaches for treating tumors, with a multitude of immunotherapeutic thoughts currently under consideration for the lethal glioblastoma (GBM). However, issues with immunotherapeutic agents, such as limited in vivo stability, poor blood-brain barrier (BBB) penetration, insufficient GBM targeting, and represented monotherapy, have hindered the success of immunotherapeutic interventions. Moreover, even with the aid of conventional drug delivery systems, outcomes remain suboptimal.

Sodium chloride promotes macrophage pyroptosis and aggravates rheumatoid arthritis by activating SGK1 through GABA receptors Slc6a12.

Rheumatoid arthritis (RA) is a chronic systemic autoimmune disease characterized by synovial inflammation and the production of autoantibodies. Previous studies have indicated an association between high-salt diets (HSD) and an increased risk of RA, yet the underlying mechanisms remain unclear. Macrophage pyroptosis, a pro-inflammatory form of cell death, plays a pivotal role in RA.

Resolving neutrophils through genetic deletion of TRAM attenuate atherosclerosis pathogenesis.

Systemic neutrophil dysregulation contributes to atherosclerosis pathogenesis, and restoring neutrophil homeostasis may be beneficial for treating atherosclerosis. Herein, we report that a homeostatic resolving subset of neutrophils exists in mice and humans characterized by the low expression of TRAM, correlated with reduced expression of inflammatory mediators (leukotriene B4 [LTB4] and elastase) and elevated expression of anti-inflammatory resolving mediators (resolvin D1 [RvD1] and CD200R). TRAM-deficient neutrophils can potently improve vascular integrity and suppress atherosclerosis pathogenesis when adoptively transfused into recipient atherosclerotic animals.

Zn promoted GaZrO Ternary Solid Solution Oxide Combined with SAPO-34 Effectively Converts CO to Light Olefins with Low CO Selectivity.

We proposed a new strategy for CO hydrogenation to prepare light olefins by introducing Zn into GaZrO to construct ZnGaZrO ternary oxides, which was combined with SAPO-34 to prepare a high-performance ZnGaZrO/SAPO-34 tandem catalyst for CO hydrogenation to light olefins. By optimizing the Zn doping content, the ratio and mode of the two-phase composite, and the process conditions, the 3.5 %ZnGaZrO/SAPO-34 tandem catalyst showed excellent catalytic performance and good high-temperature inhibition of the reverse water-gas shift (RWGS) reaction.

Tumour-derived exosome SNHG17 induced by oestrogen contributes to ovarian cancer progression via the CCL13-CCR2-M2 macrophage axis.

Oestrogen is known to be strongly associated with ovarian cancer. There was much work to show the importance of lncRNA SNHG17 in ovarian cancer. However, no study has revealed the molecular regulatory mechanism and functional effects between oestrogen and SNHG17 in the development and metastasis of ovarian cancer.

A Robust In Vitro Co-culture Model for Studying the Intercellular Communication of Neutrophils.

Communication among neutrophils plays critical roles during various phases of inflammatory responses, with clinical relevance to both acute and chronic inflammatory diseases. Despite its significance, underlying mechanisms are not well understood, due to the lack of an effective in vitro system to properly address this important question. Here we report a robust in vitro method to culture primary murine neutrophils derived from bone marrow, amenable for well-controlled studies of both neutrophil activation and intercellular communication among co-cultured neutrophils.

A Robust In Vitro Culture Model and Generation of Memory Monocytes.

Innate monocytes can be trained or reprogrammed to adopt distinct memory states, such as low-grade inflammation and immune exhaustion, bearing fundamental relevance to the pathogenesis of both acute diseases such as sepsis as well as chronic diseases such as atherosclerosis. Therefore, it is critically important to develop a regimen for generating memory monocytes in vitro in order to better define key monocyte memory states with diverse potentials for proliferation, differentiation, and activation, as well as underlying mechanisms. Here, we describe an efficient in vitro system to propagate a large number of highly purified murine memory monocytes through sustaining bone marrow-derived monocytes with macrophage colony-stimulating factor (M-CSF, 10 ng/mL)-containing medium, together with other polarization agents such as lipopolysaccharide (LPS) for a 5-day period.

Immune Homeostasis Maintenance Through Advanced Immune Therapeutics to Target Atherosclerosis.

Atherosclerosis remains the leading cause of coronary heart disease (CHD) with enormous health and societal tolls. Traditional drug development approaches have been focused on small molecule-based compounds that aim to lower plasma lipids and reduce systemic inflammation, two primary causes of atherosclerosis. However, despite the widely available lipid-lowering and anti-inflammatory small compounds and biologic agents, CHD prevalence still remains high.

The AMPK and AKT/GSK3β pathways are involved in recombinant proteins fibroblast growth factor 1 (rFGF1 and rFGF1a) improving glycolipid metabolism in rainbow trout () fed a high carbohydrate diet.

Fibroblast growth factor 1 (FGF1) regulates vertebrate cell growth, proliferation and differentiation, and energy metabolism. In this study, we cloned rainbow trout () and , prepared their recombinant proteins (rFGF1 and rFGF1a), and described the molecular mechanisms by which they improve glycolipid metabolism in carnivorous fish. A 31-d feeding trial was conducted to investigate whether they could enhance glycolipid metabolism in rainbow trout on high-carbohydrate diets (HCD).

The effect of metabolic factors on the association between hyperuricemia and chronic kidney disease: a retrospective cohort mediation analysis.

Background: Hyperuricemia, hyperglycemia, hypertension, hyperlipidemia, and hyperhomocysteinemia are all established risk factors for chronic kidney disease (CKD), and their interplay could exacerbate CKD progression. This study aims to evaluate the potential mediation effects of hyperglycemia, hypertension, hyperlipidemia, and hyperhomocysteinemia on the association between hyperuricemia (HUA) and chronic kidney disease (CKD).

Methods: We collected electronic medical record data from 2055 participants who underwent physical examinations at the Affiliated Hospital of Qingdao University.

Molecular Mechanisms of Intracellular Delivery of Nanoparticles Monitored by an Enzyme-Induced Proximity Labeling.

Achieving increasingly finely targeted drug delivery to organs, tissues, cells, and even to intracellular biomacromolecules is one of the core goals of nanomedicines. As the delivery destination is refined to cellular and subcellular targets, it is essential to explore the delivery of nanomedicines at the molecular level. However, due to the lack of technical methods, the molecular mechanism of the intracellular delivery of nanomedicines remains unclear to date.

FGF21 Improves Glycolipid Metabolism in Rainbow Trout () Fed a High-Carbohydrate Diet by Inhibiting Inflammatory Responses and Activating Autophagy.

In this study, the coding region of rainbow trout was cloned and sequenced to synthesize a recombinant protein (rFGF21) and investigate its potential role in improving glycolipid metabolism. Acute injection of rFGF21 into rainbow trout effectively reduced serum glucose levels. To investigate the effect of rFGF21 on high-carbohydrate diet (HCD)-induced metabolic disorders in rainbow trout, a 31-day feeding experiment was conducted.