【摘 要】
:
Since the commercialization of the first liposomes used for drug delivery,Doxil/Caelyx? and Myocet?,tremendous progress has been made in understanding interactions between nanomedicines and biological systems.Fundamental work at the interface of engineeri
【机 构】
:
Laboratory of Pharmaceutical Technology(FarmaTec),Federal University of Goiás,Goiania 74605-220,Braz
论文部分内容阅读
Since the commercialization of the first liposomes used for drug delivery,Doxil/Caelyx? and Myocet?,tremendous progress has been made in understanding interactions between nanomedicines and biological systems.Fundamental work at the interface of engineering and medicine has allowed nanomedi-cines to deliver therapeutic small molecules and nucleic acids more efficiently.While nanomedicines are used in oncology for immunotherapy or to deliver combinations of cytotoxics,the clinical successes of gene silencing approaches like patisiran lipid complexes(Onpattro?)have paved the way for a variety of therapies beyond cancer.In parallel,the global severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)pandemic has highlighted the potential of mRNA vaccines to develop immunization strategies at unprece-dented speed.To rationally design therapeutic and vaccines,chemists,materials scientists,and drug delivery experts need to better understand how nanotechnologies interact with the immune system.This review pre-sents a comprehensive overview of the innate and adaptative immune systems and emphasizes the intricate mechanisms through which nanomedicines interact with these biological functions.
其他文献
目的:研究染料木素衍生物(Ged)对U87-MG细胞的凋亡机制.方法:实验分为对照组,染料木素衍生物组(10、20、40 μmol·L-1);以MTT法检测细胞体外抗增殖活性,流式细胞仪检测细胞的凋亡状况,荧光定量PCR仪检测细胞内Bax mRNA、Bcl-2 mRNA、Caspase-3 mRNA水平,激光共聚焦检测线粒体膜电位变化和活性氧含量,酶标仪检测Caspase-3酶的活性.结果:随染料木素衍生物浓度的增加,对U87-MG细胞的抑制性增强,细胞的凋亡量成浓度依赖性,IC50为20.23 μmol
目的:采用电感耦合等离子体质谱法(IPC-MS法)及原子荧光光谱法(AFS)测定雪松松针中28种元素的含量.方法:采用硝酸-水体系对雪松松针样品进行微波消解,用原子荧光光谱法测定雪松松针中的Hg元素,Li、Be、Na等27种元素用电感耦合等离子体质谱法进行测定.结果:28种元素的线性关系良好,r≥0.999 2,精密度、重复性、稳定性试验的RSD分别小于4.0%、4.3%及3.5%,加样回收率介于88.6%~110.6%之间,RSD 均小于4.9%.15批雪松松针样品中,K、Mg、Ca、Na、Al、Fe、
目的:利用超高效液相色谱-串联四极杆飞行时间高分辨率质谱(UPLC-Q-TOF/MS)技术快速表征肿节风中的化学成分,进一步分析越南与江西产肿节风化学成分的差异.方法:采用Waters CORTECS C18色谱柱(100 mm×2.1 mm,1.6 μm),以乙腈(A)-0.1%甲酸水溶液(B)为流动相,梯度洗脱,流速0.5 mL·min-1,柱温25℃;质谱数据采集为负离子模式扫描.通过高分辨质荷比、同位素丰度、Massbank数据库结合化合物本身裂解规律进行肿节风化学成分快速表征.将质谱数据导入Ma
目的:建立金樱根基原之一的粉团蔷薇根质量控制标准.方法:性状、显微、TLC法进行定性鉴别;根据2020年版《中华人民共和国药典》方法进行检查和浸出物测定;UPLC测定粉团蔷薇根中构莓苷F1、阿江榄仁亭、野蔷薇苷含量,并以UPLC建立指纹图谱.结果:所建立的显微鉴别、薄层色谱法、UPLC含量测定和指纹图谱方法稳定可行.药材水分、总灰分及浸出物含量:水分不得过13.87%,总灰分不得过8.72%,浸出物不得少于5.08%;11个批次粉团蔷薇根中所测构莓苷F1、阿江榄仁亭、野蔷薇苷含量范围分别是0.44~12.
目的:建立炽灼残渣-离子色谱法,考察药用溴化丁基橡胶塞中溴化物及其在药液中的迁移情况.方法:采用离子色谱柱Metrosep A Supp 5(250/4.0)和保护柱Metrosep A Supp 1 Guard/4.0,洗脱液为3.2 mmol·L-1碳酸钠溶液与1.0 mmol·L-1碳酸氢钠溶液,流速:0.7 mL·min-1,电导检测器,柱温为30℃,进样量20μL.结果:溴离子浓度为0.02~5.0μg·mL-1,线性良好,相关系数r为1.000;溴离子的提取试验与迁移试验的平均回收率分别为97
目的:建立采用核磁共振氢谱(1H NMR)对伐地那非进行定性和定量分析的方法.方法:将样品与经氢氧化钠碱化后的美国药典委员会(USP)对照品进行1H NMR比对鉴别;采用Bruker AVANCE NEOAscend 600型核磁共振波谱仪,脉冲序列zg90,恒温25℃,驰豫延迟时间(D1)30 s.以1,3,5-三甲氧基苯为内标物,氘代二甲基亚砜(DMSO-d6)为溶剂,采用定量核磁共振氢谱法(qHNMR法)测定伐地那非的含量,同时含量测定结果与质量平衡法和外标法测定结果进行比较.结果:伐地那非样品的1
目的:采用酸辅助微波消解技术,建立测定减肥类保健食品中总左旋肉碱的液相色谱-串联质谱/质谱方法(HPLC-MS/MS).方法:样品加水超声溶解后,再经酸辅助微波消解(120℃,40 min)处理;消解溶液经稀释后,采用Agilent Zorbax 300-SCX(3.0mm×50 mm,1.8 μm)色谱柱进行分离,以5 mmol·L-1甲酸铵乙腈-水(1∶1,含0.2%甲酸)为流动相A,30 mmol·L-1甲酸铵乙腈-水(1∶1,含0.2%甲酸)为流动相B,进行梯度洗脱.在质谱电喷雾(ESI)正离子模
目的:建立一种用拉曼光谱技术快速测定石膏中二水硫酸钙含量的方法.方法:首先以硝酸钠作为内标,氯化钠作为填充剂,与石膏样品混合研磨均匀,在室温干燥条件下,压片,然后进行拉曼光谱测定.测定条件:激发波长780 nm,激光功率24 mW,光阑50 μm slit,10倍物镜,曝光时间2 s,累积2次,扫描范围300~1 700 cm-1.结果:二水硫酸钙质量分数在5%~35%范围内与二水硫酸钙和硝酸钠的拉曼特征峰强度比值(I1 007/I1 068)呈良好的线性关系,线性回归方程为Y=0.019X-0.035
The use of lipid nanocarriers for drug delivery applications is an active research area,and a great interest has particularly been shown in the past two decades.Among different lipid nanocarriers,ISAsomes(Internally self-assembled somes or particles),incl
Monomethoxy poly(ethylene glycol)-block-poly(D,L-lactic acid)(PEG-PLA)is a typical amphiphilic di-block copolymer widely used as a nanoparticle carrier(nanocarrier)in drug delivery.Un-derstanding the in vivo fate of PEG-PLA is required to evaluate its ove