Experimental and Therapeutic Medicine
·
2023
·Vol. 25
·期 4
·1-11
·
IF 2.7
Chun-Lian Liang,Xiu-Li Li,Xiao-Juan Quan,Lin Zhang
Idiopathic pulmonary fibrosis (IPF) is a heterogeneous lung disease associated with high mortality. Disabled‑2 (DAB2), an adapter protein, regulates cell‑fibrinogen adhesion and fibrinogen uptake. DAB2 is differentially expressed in mouse fibrotic lungs induced by bleomycin according to a genome microarray analysis based on Gene Expression Omnibus database. However, the role of DAB2 in IPF has not been revealed. A bleomycin‑induced mouse model of pulmonary fibrosis was constructed in the present study. It found that the expression of DAB2 was upregulated in bleomycin‑induced fibrotic lung tissue with collagen fiber deposition and pulmonary interstitium thickening. Colocalization of DAB2 with α‑smooth muscle actin (SMA) was observed in lung tissue sections. In vitro, human lung fibroblast MRC‑5 cells were treated with TGF‑β1 and the expression of DAB2 was increased. Knockdown of DAB2 suppressed cell proliferation and the expression of α‑SMA, collagen I, collagen IV and fibronectin in TGF‑β1‑treated MRC‑5 cells. The phosphorylation levels of PI3K and AKT were suppressed in DAB2‑knockdown cells. IGF‑1/IGF‑1R has been reported to promote pulmonary fibrosis and activate the PI3K/Akt signaling. In the present study, the activation of IGF‑1/IGF‑1R signaling pathways in bleomycin‑induced fibrotic lung tissues were positively associated with DAB2 expression. The phosphorylation level of IGF‑1R was increased in MRC‑5 cells with TGF‑β1 treatment, and DAB2 expression was decreased by silencing of IGF‑1R. This suggested that DAB2 might be a downstream target of the IGF‑1R pathway and thus induced PI3K/AKT signaling activation and fibrogenesis. The current study demonstrated the importance of DAB2 in pulmonary fibrosis and suggested the potential of IGF‑1R/DAB2/PI3K in the pathogenesis of IPF.
研究领域:
肺科学
·
细胞生物学
·
分子生物学
·
病理学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Acta Pharmaceutica Sinica B
·
2023
·
IF 14.5
Zinan Zhang,Wenbin Cao,Huanchun Xing,Shuai Guo,Lijuan Huang,Lin Wang,Xin Sui,Kui Lu,Yuan Luo,Yongan Wang,Jun Yang
In the treatment of central nervous system disease, the blood–brain barrier (BBB) is a major obstruction to drug delivery that must be overcome. In this study, we propose a brain-targeted delivery strategy based on selective opening of the BBB. This strategy allows some simple bare nanoparticles to enter the brain when mixed with special opening material; however, the BBB still maintains the ability to completely block molecules from passing through. Based on the screening of BBB opening and matrix delivery materials, we determined that phospholipase A2-catalyzed 1-palmitoyl-2-oleoyl- sn -glycero-3-phosphoserine liposomes can efficiently carry drugs into the brain immediately. At an effective dose, this delivery system is safe, especially with its effect on the BBB being reversible. This mix & act delivery system has a simple structure and rapid preparation, making it a strong potential candidate for drug delivery across the BBB.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
MICROCHEMICAL JOURNAL
·
2021
·
IF 4.821
Yimeng Geng,Sizhe Zhang,Yuxian Wang,Nengsheng Ye,Yuhong Xiang
We developed a fluorescent switching based on bovine serum albumin stabilized gold nanoclusters (BSA-AuNCs) and kanamycin (Kana) aptamer to detect Kana. Red fluorescence of BSA-AuNCs was turn off when Kana aptamer was assembled on the surface of BSA-AuNCs. However, after adding Kana, the specific aptamer detached from the surface of the BSA-AuNCs and formed the complex of aptamer-kanamycin, then the red fluorescence of BSA-AuNCs was turn on. The fluorescence intensity of BSA-AuNCs can be mediated by the amount of Kana aptamer. A good linear response for Kana was obtained in the concentration range 0.04 nM to 7.0 nM. The assay was used to detect Kana in milk matrix, and the accuracy and recovery of the method were satisfied. It is worth noting that the aptamer mediated BSA-AuNCs fluorescent switching was simple and easy to fabricate, which can provide a novel assay for the detection of small molecules.
研究领域:
分析化学
·
纳米技术
·
食品安全
✓ 已验证
DOI
高影响因子
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
·
2021
·Vol. 414
·期 4
·1631-1640
·
IF 4.157
Qian Jingqi,Wang Mian,Wang Zhaoxiang,Feng Rui,Zhang Jiaqi,Ye Chencheng,Zhang Man,Wang Baomin,Cui Liwang
Amodiaquine (AQ) is a commonly used antimalarial drug, and N -desethyl-AQ (N-DEAQ) is an active metabolite of AQ. Given the significance of drug quality in the management of malaria cases, this study aims to develop antibody-based assays for the detection and quantitation of AQ without the need for sophisticated equipment. Two monoclonal antibodies (mAbs) against AQ, designated as JUN7 and TE7, were selected, which showed 72.7% and 9.5% cross-reactivity to N-DEAQ, respectively. These mAbs showed <0.1% cross-reactivity to other commonly used antimalarial drugs. An indirect competitive enzyme-linked immunosorbent assay (icELISA) based on JUN7 showed a 50% inhibitory concentration (IC 50 ) of 0.16 ng/mL and a working range of 0.06–0.46 ng/mL. A lateral flow immunoassay (LFIA) based on JUN7 was also developed with a working range of 2.58–30.86 ng/mL. The icELISA and LFIA were applied for the quantification of AQ in commercial drugs, and the results were comparable to those determined using high-performance liquid chromatography. In addition, a combination dipstick for simultaneous, qualitative analysis of AQ and artesunate was developed. All immunoassays based on JUN7 can be applied for quality control of AQ-containing artemisinin-based combination therapies. As TE7 showed low cross-reactivity to N-DEAQ, an icELISA based on TE7 was developed with an IC 50 of 0.38 ng/mL and a working range of 0.14–1.67 ng/mL. The TE7 icELISA was applied for the study of pharmacokinetics of AQ in rat serum after intragastric administration, and the results were consistent with those of previous studies. Graphical abstract
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2020
·
IF 7.489
Lihua Zhi,Shengya Zhang,Youyuan Xu,Jibing Tu,Min Li,Dongcheng Hu,Jiacheng Liu
Controllable fabrication of nanomaterials with hierarchical architecture have received much attention in the field of photocatalysis due to their enhanced light-harvesting efficiency. Moreover, fabricating direct Z-scheme heterojunctions have been proven to be effective way to enhance the photocatalytic performance of photocatalysts . Herein, hierarchically hollow WO 3 nanoflower was successfully synthesized by a simple hydrothermal treatment of tungsten chloride (WCl 6 ) in ethanol solution. Decoration of the obtained WO 3 with AgI nanoparticles in situ can form the Z-scheme AgI/WO 3 hollow hierarchical nanoflowers (AgI/WO 3 HHNFs). The AgI/WO 3 HHNFs exhibited excellent photocatalytic activity and remarkable stability for the degradation of tetracycline hydrochloride (TC-HCl) and Eosin B (EB) under the irradiation of a low energy consume light (LED lamp, 5 W). Interestingly, compared to pure AgI nanoparticles , 3D hollow WO 3 nanoflowers and AgI/WO 3 nanosheets , the AgI/WO 3 HHNFs revealed conspicuously enhanced photocatalytic activity . This phenomenon could be associated to three aspects, namely the high light-harvesting efficiency, increased light trapping and scattering capability and strongly coupled Z-scheme heterointerface, which effectively improved the photoelectron-hole sepreation efficiency. Our work therefore provide a novel insight for the fabrication of 3D hollow hierarchical structures.
研究领域:
材料科学
·
环境科学
✓ 已验证
DOI
高影响因子
ACS Nano
·
2024
·
IF 15.8
Dan Yang,Yuqi Feng,Ying Yuan,Linxuan Zhang,Yao Zhou,Adam C. Midgley,Yanrong Wang,Ning Liu,Guoliang Li,Xiaolin Yao,Dechun Liu
The epithelial mucosa is a key biological barrier faced by gastrointestinal, intraoral, intranasal, ocular, and vaginal drug delivery. Ligand-modified nanoparticles demonstrate excellent ability on this process, but their efficacy is diminished by the formation of protein coronas (PCs) when they interact with biological matrices. PCs are broadly implicated in affecting the fate of NPs in vivo and in vitro, yet few studies have investigated PCs formed during interactions of NPs with the epithelial mucosa, especially mucus. In this study, we constructed transferrin modified NPs (Tf-NPs) as a model and explored the mechanisms and effects that epithelial mucosa had on PCs formation and the subsequent impact on the transcellular transport of Tf-NPs. In mucus-secreting cells, Tf-NPs adsorbed more proteins from the mucus layers, which masked, displaced, and dampened the active targeting effects of Tf-NPs, thereby weakening endocytosis and transcellular transport efficiencies. In mucus-free cells, Tf-NPs adsorbed more proteins during intracellular trafficking, which enhanced transcytosis related functions. Inspired by soft coronas and artificial biomimetic membranes, we used mucin as an “active PC” to precoat Tf-NPs (M@Tf-NPs), which limited the negative impacts of “passive PCs” formed during interface with the epithelial mucosa and improved favorable routes of endocytosis. M@Tf-NPs adsorbed more proteins associated with endoplasmic reticulum-Golgi functions, prompting enhanced intracellular transport and exocytosis. In summary, mucus shielded against the absorption of Tf-NPs, but also could be employed as a spear to break through the epithelial mucosa barrier. These findings offer a theoretical foundation and design platform to enhance the efficiency of oral-administered nanomedicines.
研究领域:
纳米技术
·
药学
·
生物医学工程
·
细胞生物学
·
药物递送系统
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ENVIRONMENTAL POLLUTION
·
2020
·
IF 6.793
Yinglong Su,Zhongjian Zhang,Jundong Zhu,Jianhong Shi,Huawei Wei,Bing Xie,Huahong Shi
Microplastics (MPs) are found to be ubiquitous and serve as vectors for other contaminants, and the inevitable aging process changes MP properties and fates. However, whether the MPs in aging process affects the fates of antibiotic resistance gene (ARGs) in aquatic environments is poorly understood. Herein, the physicochemical property alteration of MPs being aged in landfill leachate , an important reservoir of MPs and ARGs, was investigated, and microbial community evolution and ARGs occurrence of MP surface during the aging process were analyzed. Aging process remarkably altered surface properties, including increasing specific surface areas, causing the formation of oxygen-containing groups, and changing surface morphology, which further increased the probability of microbial colonization. The bacterial assemblage on MPs showed higher biofilm-forming and pathogenic potential compared to leachate. ARGs quantification results suggested that MPs exhibited selective enrichment for ARGs in a ratio of 5.7–10 3 folds, and the aging process enhanced the enrichment potential. Further co-occurrence networks suggested that the existence of non-random, closer and more stable ARGs-bacterial taxa relations on MP surface affected the ARG transmission. The study of ARG partitioning on MPs indicated that extracellular DNA was a nonnegligible reservoir of ARGs attached on MP surface, and that biofilm bacterial community influenced ARGs partitioning pattern during the aging process. This study confirmed that the aging process could enhance the potential of MPs as vectors for ARGs, which would promote the holistic understanding of MP behavior and risk in natural environments.
研究领域:
环境科学
·
微生物学
✓ 已验证
DOI
PubMed
高影响因子
RSC Advances
·
2015
·Vol. 5
·期 119
·98492-98499
·
IF 3.84
Dechao Shi,Fanyong Yan,Tancheng Zheng,Yinyin Wang,Xuguang Zhou,Li Chen
A simple and rapid method for sensitive and selective detection of 2,4,6-trinitrophenol (TNP) was developed with the use of water-soluble carbon dots (CDs) as a nanosensor. The CDs with a fluorescence quantum yield of 21.8% are easily prepared by hydrothermal treatment of a sucrose phosphate solution. In this sensing system, the fluorescence of CDs would be significantly quenched by TNP, while other nitroaromatic derivatives and common reagents exhibited little influence on the detection of TNP. The efficient selective detection of TNP can be attributed to the fluorescence resonance energy transfer process (FRET). This phenomenon can be used for the selective sensing of TNP with a limit of detection of 16.9 nM and a linear range of 0.2–17.0 μM. The recovery result for TNP in real samples by this assay method was satisfying, demonstrating its potential application as a fluorescence sensor. Furthermore, the resulting CDs solution could replace traditional colorings and was successfully applied for Escherichia coli labeling and intracellular imaging.
研究领域:
分析化学
·
环境科学
·
生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2017
·
IF 3.133
Hongying Liu,Mingru Jiao,Chunchuan Gu,Mingzhen Zhang
In this research, [email protected] x OS yolk-shell nanomaterials with porous shells were prepared by an ion-exchange route and characterized by scanning electron microscopy (SEM) as well as transmission electron microscopy (TEM). Then, the as-prepared [email protected] x OS yolk-shell nanomaterials were proposed as an outstanding peroxidase-like mimic for the first time, which could be used as a colorimetric probe for the determination of H 2 O 2 . The enhanced intrinsic peroxidase mimic activity was much higher than that of horseradish peroxidase (HRP), Au nanoparticles , and [email protected] 2 O core-shell nanomaterials due to the special yolk-shell structure and the synergistic cooperation between the AuNP core and the CuxOS shells. The catalytic property of the resulting nano-alloy followed a symbolical Michaelis–Menten model. Further studies also exhibited a ping-pong mechanism of the enzyme catalytic reaction. Under the optimized conditions, colorimetric determination for H 2 O 2 was carried out and the results showed a linear response range from 0.1 to 32 μM along with a limit of detection of 0.03 μM (S/N = 3). Due to the high catalytic activity, this assay promised wide application in clinical diagnosis, food safety, and environmental monitoring.
研究领域:
纳米生物学
·
分析化学
·
生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2022
·Vol. 32
·期 31
·2203492
·
IF 19.924
Min Hao,Dapeng Zhang,Wenhan Wang,Zhijian Wei,Jiazhi Duan,Jianlong He,Xiaohong Kong,Yuanhua Sang,Shiqing Feng,Hong Liu
Limitations such as the cell life span, cellular activity, and cellular diffusion outside the lesion make the direct repair of spinal cord injury (SCI) by neural stem cell (NSC) transplantation challenging. Here, an injectable hydroxyapatite (HAp) thermosensitive nanohydrogel is proposed to achieve stem cell storage and release, as well as fate regulation, for therapy. The cavities formed in situ functioned as brood pouches for cell proliferation. The enzyme-induced collapse of cavities released mouse NSCs (mNSCs) gradually and continuously. The endocytosis of HAp nanorods by encapsulated mNSCs enhanced the property of mNSC neuronal differentiation. The HAp thermosensitive nanohydrogel with mNSCs exert an inspiring therapeutic effect on a complete transected SCI model and has prospects in material design to improve SCI therapy with stem cells.
研究领域:
生物医学工程
·
神经科学
·
干细胞生物学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2022
·
IF 5.518
Chunhua Liang,Chuantao Wang,Kaixuan Xu,Hongbin He,Qiangen Li,Chunming Yang,Xiaoming Gao
The benzaldehyde (BAD) produced by the benzyl alcohol (BA) oxidation method is comprehensively applied to food and pharmaceutical fields. However, the selectivity and conversion of photocatalytic selective oxidation of BA in aqueous solution are still far from expectation. Herein, N-CQDs/CdS composites were synthesized by the in-situ precipitation method. N-CQDs served as an "Electronic Warehouse" to boost the separation efficiency of the carrier. The electron transferred from CdS to N-CQDs made electron on the N-CQDs surface enrich, which was conducive to the formation of superoxide radicals (·O 2 - ).·O 2 - and h + could efficiently oxidize BA to BAD. In addition, according to density functional theory (DFT), the adsorption energies of BA and BAD on N-CQDs/CdS were distinctly greater than that of CdS. BAD tended to desorb from the 7.5 N-CQDs/CdS surface, and BA preferred to adsorb on the CdS surface. However, BAD was difficult to desorb from the CdS surface, resulting in the poisoning of CdS. 7.5 N-CQDs/CdS exhibited the BA conversion of 60.4% and BAD selectivity of 99%, which was 2.2 times higher than that of original CdS. This work was expected to provide a theoretical basis for improving photocatalyst carrier separation efficiency and alcohol selective oxidation performance.
研究领域:
材料科学
·
催化化学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2022
·
IF 5.532
Junjie Tian,Hongmei Liu,Rong Guo,Honghao Sun,Yufeng Chen,Yi Wang,Qian Xu,Yao Zhu,Qing Yao
White light diodes (WLEDs) composed of blue chip and phosphor-converter are widely used in liquid crystal display (LCD) projectors as backlights. And it often needs a condenser lens to irradiate white light onto the LCD screen. In this paper, a large size lenticular shaped phosphors-in-glass (PiG) was prepared by Isobam-APS gel casting for the first time. The PiG could act for converting and condensing in LCD projector. Then a rectangular light spot similar to the shape of LCD screen was obtained to reduce the loss of light. The maximum temperatures of the chip and PiG were 62.1 °C and 57.3 °C respectively after working for 600 s and gradually stabilized by simulation. It was proved that simulation result was reliable through comparing with the actual measured value and the lenticular shaped PiG had good heat dissipation capacity for its large area. In conclusion, this is a successful application of PiG in LCD projector, which has guidance and promoting effect.
研究领域:
光学工程
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）