Results 21 to 30 of about 26,778 (175)
Novel Manganese Dioxide Nanoparticles Enhance Chemotherapy Response by Priming Tumor-Associated Macrophages toward M1-like Phenotype and Attenuating Tumor Hypoxia [PDF]
, 2016 缺血乏氧是肿瘤微环境的重要特征之一，肿瘤的缺血乏氧不仅促进了肿瘤细胞的侵袭转移，同时还增强肿瘤对化疗药物的耐药性。肿瘤相关巨噬细胞（Tumor-associatedmacrophages，TAMs）浸润在肿瘤微环境之中，通常在肿瘤缺血乏氧区域富集。肿瘤相关巨噬细胞作为肿瘤微环境的重要功能细胞，其在肿瘤细胞的增殖、侵袭、转移、化疗耐药等肿瘤进展的各个阶段均发挥着重要作用。鉴于此，我们提出一种新型的肿瘤治疗策略，以期改变肿瘤微环境的同时，增强实体瘤对化学治疗的疗效 ...
宋曼莉
core
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Diabetic wound infections are a common complication of diabetes, which severely impact patients' quality of life. Effective treatment of diabetic wound infections remains one major challenge in the clinic, partially due to the formation of bacterial biofilm and antibiotic resistance.
Liang Zhou +8 more
wiley +1 more source
诱导耐药型宋内志贺菌中主动外排阻遏基因acrR、marR的变化
Zhongguo shiyan zhenduanxue, 2015 目的分析宋内志贺菌在被环丙沙星诱导耐药后其主动外排阻遏基因acrR、marR突变与表达量的变化。方法通过1/2MIC逐级诱导宋内志贺菌对环丙沙星耐药,通过提取诱导株诱导前后DNA和总RNA,采用基因测序检测突变和实时荧光定量PCR方法检测acrR、marR基因表达量的变化。结果 2株诱导耐药株中acrR、marR中均不存在基因突变,相对于诱导前acrR、marR Ct值增加,基因表达量降低。结论 acrR、marR基因表达量降低间接导致主动外排基因acrAB-tolC转录水平提高 ...
高佩增, 姚明晓
doaj
pJAK2 polypeptide,an antagonist of suppressors of cytokine signaling-1,can enhance the antitumor effect of dendritic cells [PDF]
, 2013 目的:探讨细胞因子信号转导抑制因子-1(SuPPrESSOrS Of CyTOkInE SIgnAlIng1,SOCS1)拮抗物PJAk2多肽(氨基酸序列号为1001-1013)参与树突状细胞(dEndrITIC CEllS,dCS)的体外诱导培养后对dCS抗肿瘤作用的影响。方法:采集健康人外周血,离心获得单个核细胞,用重组人粒细胞巨噬细胞集落刺激因子(rECOMbInAnT HuMAn grAnulOCyTE-MACrOPHAgE COlOny STIMulATIng fACTOr,rHgM-CSf ...
丁园 +8 more
core
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT By adding CuO, the worm‐like amorphous phase and atomic clusters were simultaneously introduced, enabling the (Ni40Ti40Cu20)99.9O0.1 alloy micron columns to exhibit a uniform flow strain of over 40% and a strength of over 2.5 GPa during compression.
Huwen Ma +13 more
wiley +1 more source
黄酮与黄酮醇类化合物对HepG2细胞中CYP1A1mRNA表达的影响
Zhongguo shiyan zhenduanxue, 2008 目的观察15种黄酮与黄酮醇类化合物对细胞色素P450酶（cytochrome P450,CYP）1A1基因表达的影响。方法采用实时定量PCR技术检测HepG2细胞中各CYP1A1mRNA的表达。结果黄酮、6-羟基黄酮、槲皮素、黄芩素、野黄芩苷、野黄芩素和白杨黄素是CYP1A1的强诱导剂,50uM浓度时诱导超过10倍;黄芩苷是中等程度诱导剂,诱导倍数为7.68;桑黄素、木犀草素、汉黄芩素和山萘酚是CYP1A1弱诱导剂,诱导倍数在2-3倍左右。而7-羟基黄酮、漆黄素、芹菜黄素是CYP1A1的弱抑制剂 ...
郭颖杰, 康治臣, 张家剑, 周慧
doaj
HUVECs Promote the Proliferation of iPS-MSCs by FAM3B [PDF]
, 2016 间充质干细胞（mesenchymalstemcells，MSCs）存在于一个血管周微环境中，在这个微环境内，内皮细胞（endothelialcells，ECs）与MSCs互相作用，调控MSCs的表型和增殖，从而在MSCs的血管生成作用和治疗应用方面起重要作用。然而，MSCs受到来源、年龄、健康等多方面的影响，不能满足大规模的使用需求。诱导多能干细胞来源的间充质干细胞（inducedpluripotentstemcell-derivedMSCs，iPS-MSCs）可能会是一个有前景的替代性干细胞来源。但是，
冷云
core
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT In this study, a newly developed seeded electromagnetic confinement directional solidification (EMCDS) technique was employed to fabricate large‐scale TiAl single crystal ingots with a diameter of 32 mm, overcoming the long‐standing size limitations that have hindered their industrial application.
Wei Wang +9 more
wiley +1 more source
Induction of Nur77-dependent apoptotic pathyway by Apaensin through activation of JNK and P38MAPK and high content screen model of nulear receptor modulators [PDF]
, 2015 第一章主要介绍香豆素类衍生物通过激活p38和JNK通路调控Nur77依赖的细胞凋亡。香豆素化合物是从植物中提取的天然产物，具有包括抗肿瘤效应在内的广泛药理学活性，但这类化合物的抗肿瘤活性作用机制还不太为人所知。在本文中，我们首次发现香豆素类化合物Apaensin可以诱导肿瘤细胞凋亡，这种凋亡效应是通过激活JNK和p38MAPK激酶调控Nur77-Bcl-2凋亡信号通路实现的。我们发现在用JNK和p38抑制剂抑制JNK和p38MAPK的表达后，Apaensin所诱导的肿瘤细胞凋亡效应有所减弱 ...
赵伟
core
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT MXenes have been widely investigated as microwave absorption (MA) materials because of their unique properties. This study introduces a terminal bond manipulation strategy to enhance charge transfer and polarization in Ti3C2Tx, optimizing its MA performance.
Xiang Fang +8 more
wiley +1 more source