Exploration
·
2025
·
IF 22.5
Fangfang Liu,Zhong-Da Li,Yanqiao Zeng,Xiaofeng Wang,Yingnan Liu,Qi Li,Wenhe Luo,Xiaoman Suo,Yaqing Xu,Feng Yuan,Dan Zhang,Wuqiong Zhang,Shengyong Geng,Xue-Feng Yu,Guofang Zhang,Yang Li
The intrinsic properties of black phosphorus (BP) nanomaterials (NMs) enable them for targeted binding to polo-like kinase 1 (PLK1), thus inhibiting its kinase activity. However, the mechanism and targeted binding sites underlying this interaction remain unclear. To elucidate the critical properties of PLK1 that facilitate its interaction with BPNMs, the binding ability of BPNMs was compared across PLK family proteins. Although BPNMs exhibited a weak binding affinity for PLK3, PLK1 demonstrated the most favorable physicochemical properties for its binding. Factors as surface charge, hydrophobicity, secondary and three-dimensional structures significantly affected the interaction of PLK family proteins to BPNMs. The binding affinity was primarily determined by amino acid residues at the binding interface, where arginine and proline played critical roles in mediating the interaction of BPNMs-PLK1. BPNMs inhibited PLK1 activation by binding to key residues of the kinase domain, including S49, Y203, D204, E206, and R207. In conclusion, this study elucidates the molecular basis of the specific interaction between BPNMs and PLK1, highlighting the pivotal role of the amino acid residues in NM-protein binding. This work demonstrates that NM-protein interactions are a mutual selection and driven by the physicochemical properties of both proteins and NMs.
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高影响因子
Pharmaceuticals
·
2024
·Vol. 17
·期 3
·291
·
IF 4.3
Nannan Kang,Jun Ma,Yuling Hu,Rongrong Di,Lei Wang,Xuanling Zhang,Yisheng Lai,Yu Liu
Background: Breast cancer is a commonly diagnosed cancer worldwide. Human MutT homolog 1 (MTH1) is found to be elevated in breast tumors and cancer cells need MTH1 for survival. Pharmacological inhibition of MTH1 may be potentially beneficial in the treatment of breast cancer. Methods: MA−24 was screened by malachite green colorimetric assay for MTH1 inhibitors and the kinetic characteristics of MA−24 were assessed. The features of MA−24’s binding with MTH1 were ascertained through molecular docking, and the cytotoxic activity of MA−24 was validated in vitro and in vivo. Target engagement assays, comet assay, and Western blot confirmed the intracellular target and mechanism of MA−24. Results: MA−24 shows potent antitumor bioactivity both in vitro and in vivo. MA−24 competitively inhibited the MTH1 and further induced DNA strand breaks, leading to increased apoptosis of cancer cells depending on the upregulation of the cleaved-caspase 3–cleaved-PARP axis. In particular, MA−24 exhibited a powerful efficacy and safety in vivo (tumor growth inhibition rate: 61.8%). Conclusions: MA−24 possesses a broad spectrum of breast cancer cytotoxicity and offered valuable insights for overcoming the challenges of chemotherapy-related toxicity, which holds great potential for the further development MA−24 as an anti-cancer drug.
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高影响因子
MICROCHEMICAL JOURNAL
·
2025
·
IF 5.1
Suqi Liu,Xiaowei Wu,Shihao Chen,Cong Liu,Wanqi Zhang,Mingyi Yang,Jiyu Cheng,Guoquan Lu,Zhenhe Wang,Wei Chen,Yuge Guan,Linjiang Pang,Xinghua Lu
Linalool, a terpenoid alcohol with bacteriostatic properties, was detected in sweetpotato suffering from black spot disease. In this research, a composite material based on HKUST-1/MWCNT-gel@MIP was employed to detect the linalool content in these infected sweetpotatoes. The micro-morphology and crystal structure of the composite were characterized using scanning electron microscopy (SEM), fourier transform infrared (FTIR), and x-ray diffraction (XRD). Experimental results demonstrated that the quartz crystal microbalance (QCM) gas sensor of HKUST-1/MWCNT-gel@MIP composite exhibited high sensitivity (0.873 Hz/ppm), a low detection limit (0.237 ppm), a small standard deviation (0.83 %), good reproducibility, and outstanding selectivity. The QCM gas sensor data from actual samples showed a strong correlation with gas chromatography-mass spectrometry (GC–MS) results (r = −0.976, p < 0.01), demonstrating its exceptional ability to identify linalool. Thus, it can be used for early detection of sweetpotato black spot disease.
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Fermentation-Basel
·
2024
·Vol. 10
·期 2
·87
·
IF 3.3
Wenjiao Xue,Chen Liu,Yao Liu,Hao Ding,Chao An,Shizhe Zhang,Saijian Ma,Qiwen Zhang
To assess the probiotic potential of strain 68-1 with rutin conversion capabilities, isolated from Chinese traditional Jiangshui, a complete genomic analysis and in vitro tests were conducted. The Oxford Nanopore Technologies (ONT, Oxford, UK)–Illumina (San Diego, CA, USA) hybrid sequencing platform was used for whole genome sequencing and the results showed that strain 68-1 had a chromosome sequence of 3,482,151 bp, with 46.53% GC content and five plasmids with a sequence length ranging from 2009 bp to 48,711 bp. Strain 68-1 was identified asLactiplantibacillus pentosusbased on the whole genome sequence. A total of 133 genes encoding for carbohydrate-active enzymes (CAZymes) were identified and genes that may be involved in rutin conversion were found in theL. pentosus68-1 genome.L. pentosus68-1 showed excellent tolerance to gastrointestinal juice and adhesion properties, and corresponding genes were identified. In addition,L. pentosus68-1 exhibited strong antibacterial and antifungal activity, where organic acids may play a crucial role in its antagonistic ability. Moreover, the gene cluster for plantaricin_EF production was detected. No high virulence factor was found in theL. pentosus68-1 genome and no hemolytic effect was observed. In addition,L. pentosus68-1 showed resistance to ampicillin, gentamycin, and kanamycin, and the genomic analysis indicated that horizontal ARG transfer should not be possible. The results show thatL. pentosus68-1 could be developed as a novel probiotic candidate to improve rutin bioavailability in the food and feed industry.
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MOLECULAR NUTRITION & FOOD RESEARCH
·
2024
·
IF 4.5
Yu-Ru Ren,Wen-Ting Cui,Kai-Li Jiang,Kai-Qi He,Yong-Ming Lu,Yan Chen,Wen-Juan Pan
Age-related cognitive decline is primarily attributed to the progressive weakening of synaptic function and loss of synapses, while age-related gut microbial dysbiosis is known to impair synaptic plasticity and cognitive behavior by metabolic alterations. To improve the health of the elderly, the protective mechanisms of Oudemansiella raphanipes polysaccharide (ORP-1) against age-related cognitive decline are investigated. The results demonstrate that ORP-1 and its gut microbiota-derived metabolites SCFAs restore a healthy gut microbial population to handle age-related gut microbiota dysbiosis mainly by increasing the abundance of beneficial bacteria Dubosiella , Clostridiales , and Prevotellaceae and reducing the abundance of harmful bacteria Desulfovibrio , strengthen intestinal barrier integrity by abolishing age-related alterations of tight junction (TJ) and mucin 2 (MUC2) proteins expression, diminish age-dependent increase in circulating inflammatory factors, ameliorate cognitive decline by reversing memory- and synaptic plasticity-related proteins levels, and restrain hyperactivation of microglia-mediated synapse engulfment and neuroinflammation. These findings expand the understanding of prebiotic–microbiota–host interactions.
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CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Xiu Gong,Shuhan Fan,Qu Yang,Jing-Liang Yang,Yanli chen,Xiaosi Qi,Hui Shen,Dan Ren,Mingkui Wang
Using photoelectrochemical technology to construct efficient photoelectric materials has aroused extensive research interest. In this study, we propose a two-dimensional porous CuSe@BiOI isotype heterojunction photocathode for CO 2 reduction to formic acid. The heterojunction was constructed by the epitaxial growth of high-quality oriented BiOI nanosheets onto the porous CuSe framework. The CuSe framework as a template to ensure the formation of the (1 0 2) facets of BiOI and the isotropic charge transport characteristics of the (1 0 2) surface greatly improve the efficiency of charge separation and transfer. This CuSe@BiOI isotype heterojunction electrode can efficiently reduce CO 2 to formic acid with a selectivity of up to 80.5 % in 0.5 M potassium bicarbonate aqueous solution. Meanwhile, the performance of the photodetector based on CuSe@BiOI heterostructure is 6.97 × 10 11 Jones and a response rate of 87.13 mA W −1 . This finding provides a new approach to designing stable heterojunction photoelectrocatalysts with isotropy.
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FEBS Open Bio
·
2025
·
IF 2.3
Wenheng Gao,Yunlong Li,Lihua Chen,Wenshuo Yang,Yong He,Ye Yang,Dengke Yin,Song Tan
Hyperlipidemia is a common chronic disease characterized by elevated levels of lipids in the blood. There is some evidence that suggests that berberine (BBR) might be beneficial for the treatment of hyperlipidemia. However, its low intestinal bioavailability limits its potential therapeutic action. In the present study, we explored the effect and the underlying mechanism of berberine–cinnamic acid co-crystal (BBR-CA), which is self-assembled from CA and BBR and displays a high intestinal bioavailability. In mice, BBR-CA showed the ability to decrease body weight gain and hepatic lipid accumulation in animals fed a high-fat diet. To further characterize the molecular basis of this effect, we established a hyperlipidemia cell model by treating human hepatocellular carcinoma cells (HepG2) with free fatty acids. Similarly to our in vivo experiments, lipid accumulation in free fatty acids-induced HepG2 cells was also reduced by BBR-CA. We hypothesized that BBR-CA might act through the regulation of sterol regulatory element-binding proteins-1 (SREBP-1), a key factor regulating lipid synthesis, and, indeed, SREBP-1 protein expression was inhibited by BBR-CA treatment, resulting in the decreased expression of its downstream proteins stearoyl-CoA desaturase 1 and acetyl-CoA carboxylase. Furthermore, the phosphorylation of phosphatidylinositol 3-kinase (PI3K), AKT and mammalian target of rapamycin (mTOR) was inhibited by BBR-CA, contributing to decreased active SREBP-1 in the nucleus, and was reversed and enhanced by the PI3K agonist recilisib and inhibitor LY294002, respectively. Taken together, our results suggest that BBR-CA could function by modulating the PI3K/AKT/mTOR signaling pathway, resulting in decreased nuclear expression of SREBP-1, as well as reduced expression of stearoyl-CoA desaturase 1 and acetyl-CoA carboxylase, thus alleviating hyperlipidemia. Further experimental validation is required to confirm these results.
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ADVANCED FUNCTIONAL MATERIALS
·
2021
·Vol. 31
·期 18
·2009438
·
IF 18.808
Jianbo Yang,Zhen Xu,Jijun Wang,Ligang Gai,Xingxiang Ji,Haihui Jiang,Libin Liu
Hydrogel electrolytes have high room-temperature conductivity and can be widely used in energy storage device. However, hydrogels suffer from the inevitable freezing of water at subzero temperatures, resulting in the diminishment of their conductivity and mechanical properties. How to achieve high conductivity without sacrificing hydrogels’ flexibility at subzero temperature is an important challenge. To address this challenge, a new type of zwitterionic polymer hydrogel (polySH) electrolytes is fabricated. The anionic and cationic counterions on the polymer chains facilitate the dissociation of LiCl. The antifreezing electrolyte can be stretched to a strain of 325% and compressed to 75% at −40 °C and possesses an outstanding conductivity of 12.6 mS cm −1 at −40 °C. A direct hopping migration mechanism of hydrated lithium-ion through the channel of zwitterion groups is proposed. The polySH electrolyte-based-supercapacitor (SC) exhibits a high specific capacitance of 178 mF cm −2 at 60 °C and 134 mF cm −2 at −30 °C with a retention of 81% and 71% of the initial capacitance after 10 000 cycles, respectively. The overall merits of the electrolyte will open up a new avenue for advanced ionic conductors and energy storage device in practical applications.
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Analytical Methods
·
2019
·Vol. 11
·期 41
·5250-5259
·
IF 2.378
Chenlei Gu,Xinwei Wei,Yuxiang Pan,Tao Liang,Ying Gan,Keqiang Gao,Yong Qiu,Hao Wan,Ping Wang
Drug-induced cardiac side-effects remain a major cause for the removal of drugs from the market and the termination of significant numbers of drug development projects. Many of the physiological and pharmacological reasons are still unclear. In this study, to comprehensively evaluate the cardiac side-effects of drugs, high-temporal-range evaluation with an HL-1-based impedance and long-term electrophysiology recording platform was proposed. Integrated with microscale interdigitated electrodes (IDEs) and planar microelectrodes, the platform could get reliable cell viability monitoring and extracellular electrophysiology recording simultaneously for low system signal drifting and noise (10 μV) in long-term experiments. HL-1 cardiac muscle cells were used as a target cardiac electrophysiology model because they are, by far, the only cardiomyocytes that can continuously divide while maintaining specific characteristics of adult cardiomyocytes. Vinblastine and nifedipine were introduced to verify the performance of this platform in a different time-dependent manner. According to the extracted cell viability and electrophysiological characteristics including cell impedance (namely, cell index, CI), extracellular field potential (EFP), firing rate (FR), inner-period and period-to-period intervals, the results showed that vinblastine exhibited a relatively strong effect on cell viability (maximum 79.83% decrease after 24 hours) and led to the fluctuation of inner-period intervals in long-term monitoring. In contrast, nifedipine presented a negligible effect on cell viability compared to control groups (maintaining minimum 86.20% of viability on an average after 24 hours), but a shortened QT interval (15.2% at least) was observed immediately. In summary, all the two time-dependent drug-induced results indicated that this HL-1-based impedance and long-term electrophysiology recording platform can not only monitor cell viability through the whole experiment but also possess both quick-reaction and long-term tracking ability for identical requirements, thus providing a promising and useful way for drug-induced cardiac side-effect evaluation in a high temporal range.
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Current Research in Food Science
·
2022
·
IF 6.269
Kwame Eduam Baiden Frempong,Yan Chen,Lili Liang,Xiaoyan Lin
During post-harvest storage, the cell wall properties are closely associated with the physical, chemical, and biological properties of the fruit. The degradation of pectin in the cell walls and middle lamella is critical to these properties. The effects of calcium chloride (CaCl₂) and 1-methylcyclopropene (1-MCP) combined treatment on the pectin degradation, texture, and peel color of Eureka lemon were investigated during post-harvest storage. The in-situ light microscope analysis, rapid method, and FTIR test were used to investigate the spatial distribution, the pectin content, and its degradation. The results showed a reduction in pectin degradation, by 42 d the CaCl₂ and 1-MCP combined treated fruits presented a 36.7% pectin content loss which was lower than the control which was 48.3%. The treated fruits significantly exhibited enhanced textural properties, delayed weight loss, higher total acids, and improvement of other physicochemical properties in comparison to the control. The treatment deaccelerated the fruit peel color change from green to yellow and also had a better visual appearance on the final day. Overall, the results suggest that the control treatment for pectin degradation can reduce the fruit texture decline and peel color change and maintain a good visual appearance. The influence of pectin degradation on the texture and physicochemical properties of lemon provides a theoretical basis for fruit storage optimization, quality control, and shelf-life extension.
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高影响因子
Journal of Integrative Agriculture
·
2023
·
IF 4.8
Ke-da SHI,Yan LI,Min-sheng XU,Kun-li ZHANG,Hong-chao GOU,Shao-lun ZHAI,Chun-ling LI
Streptococcus suis serotype 2 ( S. suis 2) is a zoonotic pathogen that clinically causes severe swine and human infections (such as meningitis, endocarditis, and septicemia). In order to cause widespread diseases in different organs, S. suis 2 must colonize the host, break the blood barrier, and cause exaggerated inflammation. In the last few years, most studies have focused on a single virulence factor and its influences on the host. Membrane vesicles (MVs) can be actively secreted into the extracellular environment contributing to bacteria-host interactions. Gram-negative bacteria-derived outer membrane vesicles (OMVs) were recently shown to activate host caspase-11-mediated non-canonical inflammasome pathway via deliverance of OMV-bound lipopolysaccharide (LPS), causing host cell pyroptosis. However, little is known about the effect of the MVs from S. suis 2 (Gram-positive bacteria without LPS) on cell pyroptosis. Thus, we investigated the molecular mechanism by which S. suis 2 MVs participate in endothelial cell pyroptosis. In this study, we used proteomics, electron scanning microscopy, fluorescence microscope, western blotting, and bioassays, to investigate the MVs secreted by S. suis 2. First, we demonstrated that S. suis 2 secreted MVs with an average diameter of 72.04 nm, and 200 proteins in MVs were identified. Then, we showed that MVs were transported to cells via and dynamin-dependent endocytosis. The S. suis 2 MVs activated NLRP3/Caspase-1/GSDMD canonical inflammasome signaling pathway, resulting in cell pyroptosis, but it did not activate the caspase-4/-5 pathway. More importantly, endothelial cells produce large amounts of reactive oxygen species (ROS) and lost their mitochondrial membrane potential under induction by S. suis 2 MVs. The results in this study suggest for the first time that MVs from S. suis 2 were internalized by endothelial cells via mainly dynamin-dependent endocytosis and might promote NLRP3/caspase-1/GSDMD pathway by mitochondrial damage, which under induction produced mtDNA and ROS, leading to the pyroptosis of endothelial cells.
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高影响因子
NEUROREPORT
·
2020
·Vol. 31
·期 18
·1274-1282
·
IF 1.394
Xi Zhiyu,Chen Xiao,Xu Canxin,Wang Baofeng,Zhong Zhihong,Sun Qingfang,Sun Yuhao,Bian Liuguan
The brain edema following intracerebral hemorrhage (ICH) plays a key role in the recovery process. Protocatechuic acid (PCA) has been proved possessing neuroprotection in ICH. Here we tried to explore its value in brain edema after ICH and reveal underlying mechanisms. ICH model was
created in C57 mice using collagenase IV. PCA was injected intraperitoneally at 30 mg/kg every 24 h in PCA group. On day 3 after ICH, the water content of hemorrhagic ipsilateral hemisphere in PCA group was significantly reduced compared with vehicle group. AQP4, the main water channel, was
remarkably decreased in PCA group. Additionally, ZO-1 and occludin expression were increased in PCA group. The bEnd.3 cells were cultured to understand the effect of PCA on the blood-brain barrier (BBB) integrity. Compare to hemin treated group, plus PCA enhanced the expression of HO-1 and
Nrf2 nuclear translocation. Furtherly, the overexpression of HO-1, ZO-1, occludin, in the PCA treatment group was inhibited after knockdown of Nrf2. Taken together, our results proved PCA alleviated brain edema and BBB disruption in ICH by promoting the Nrf2/HO-1 signaling pathway.
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