简介:OfficialJournalofChineseAnti-CancerAssociationDr.NikiKarachaliouisamedicaloncologistleadingtheTranslationalResearchTranscriptionPro-gramatthePangaeaBiotechlaboratory,Quiron-DexeusUniversityHospital,Barcelona.SheisalsoleadingtheClinicalTranslationalResearchattheInstituteGermansTriasiPujol(GermansTriasIPujolHealthSciencesInstituteandHospital
简介:Dearcolleague,GeriatricOncologyisnotaspecialty,it'sanattitude.Thereisnothingspecialintreatingseniorpatientsaffectedbycancer;wealldothatinoureverydayclinicalpractice.Theproblemrestswhenyouwanttodeliverthebestpossibletreatmenttoeachindividualolderpatient.Thisneedssomeuniqueunderstandingofthecomplexityofaging:let'sstartsayingthatoneintwoolderpatientssuffersfrommalnutrition,lackofmobility,incontinenceandcognitiveimpairment.
简介:瞄准:与胃肠的graft-versus-host疾病(官方补给的GVHD)在病人评估内视镜检查法的诊断价值。方法:我们与官方补给的GVHD后面的allogeneic识别了8个病人造血的干细胞移植(HSCT)。GVHD组织学地被定义为腺apoptosis的存在,没由另外的煽动性或传染的病原学解释。结果:官方补给的GVHD的症状包括了厌食,恶心,呕吐,水泻,腹的疼痛,官方补给的流血,等等。上面的内视镜的外观从微妙的粘膜浮肿变化了,充血,红斑到明显的侵蚀。Colonoscopic检查显示出弥漫的浮肿,充血,补缀的侵蚀,散布溃疡,腐肉形成并且活跃流血。在官方补给的GVHD的组织学的变化在上皮和薄板propria包括了地窟上皮细胞,地窟的退学学生,和淋巴球的渗入的apoptosis。胃和书籍的右页冒号的参与从diffuse变化了到焦点。结论:内视镜检查法可以在跟随allogeneicHSCT的官方补给的GVHD病人的早诊断起一个重要作用,并且胃肠的活体检视的histologic检查被需要证实最后的诊断。
简介:为了成功地感染,招待房间并且躲避主机免疫者反应,一个类型III分泌物系统(T3SS)被伤寒通常使用细菌的病原体象enteropathogenicEscherichiacoli(EPEC)那样。最近的调查结果表明了各种各样的受动器通过T3SS被注入主人房间并且在煽动性的发信号的小径上施加禁止的效果,破坏对这些病原体的有免疫力的回答。这里,我们考察针对探讨EPEC受动器蛋白质调制的几条重要煽动性的发信号小径的调整的最近的研究,例如原子factor-B(NF-B)和激活mitogen的蛋白质kinase(MAPK)小径,它在这块未经勘探的地和帮助里提供卓见进未完成的工作为EPEC受动器在煽动性的发信号的网络识别新奇位置。
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简介:AbstractEbola virus (EBOV) is one of the most pathogenic viruses in humans which can cause a lethal hemorrhagic fever. Understanding the cellular entry mechanisms of EBOV can promote the development of new therapeutic strategies to control virus replication and spread. It has been known that EBOV virions bind to factors expressed at the host cell surface. Subsequently, the virions are internalized by a macropinocytosis-like process, followed by being trafficked through early and late endosomes. Recent researches indicate that the entry of EBOV into cells requires integrated and functional lipid rafts. Whilst lipid rafts have been hypothesized to play a role in virus entry, there is a current lack of supporting data. One major technical hurdle is the lack of effective approaches for observing viral entry. To provide evidence on the involvement of lipid rafts in the entry process of EBOV, we generated the fluorescently labeled Ebola virus like particles (VLPs), and utilized single-particle tracking (SPT) to visualize the entry of fluorescent Ebola VLPs in live cells and the interaction of Ebola VLPs with lipid rafts. In this study, we demonstrate the compartmentalization of Ebola VLPs in lipid rafts during entry process, and inform the essential function of lipid rafts for the entry of Ebola virus. As such, our study provides evidence to show that the raft integrity is critical for Ebola virus pathogenesis and that lipid rafts can serve as potential targets for the development of novel therapeutic strategies.
简介:AlthoughanassociationbetweenthegroupAbetahemolyticstreptococcusandrheumaticfeverhasbeenrecognizedformorethanhalfacentury,manyimportantissuesaboutthisrelationshipremainincompletelydefined.Theinitiatingpharyngealthroatinfectionand
简介:AbstractBackground:Arteriosclerosis obliterans (ASO) is a major cause of adult limb loss worldwide. Autophagy of vascular endothelial cell (VEC) contributes to the ASO progression. However, the molecular mechanism that controls VEC autophagy remains unclear. In this study, we aimed to explore the role of the GRB2 associated binding protein 1 (GAB1) in regulating VEC autophagy.Methods:In vivo and in vitro studies were applied to determine the loss of adapt protein GAB1 in association with ASO progression. Histological GAB1 expression was measured in sclerotic vascular intima and normal vascular intima. Gain- and loss-of-function of GAB1 were applied in VEC to determine the effect and potential downstream signaling of GAB1.Results:The autophagy repressor p62 was significantly downregulated in ASO intima as compared to that in healthy donor (0.80 vs. 0.20, t= 6.43, P < 0.05). The expression level of GAB1 mRNA (1.00 vs. 0.24, t= 7.41, P < 0.05) and protein (0.72 vs. 0.21, t = 5.97, P < 0.05) was significantly decreased in ASO group as compared with the control group. Loss of GAB1 led to a remarkable decrease in LC3II (1.19 vs. 0.68, t = 5.99, P < 0.05), whereas overexpression of GAB1 significantly led to a decrease in LC3II level (0.41 vs. 0.93, t= 7.12, P < 0.05). Phosphorylation levels of JNK and p38 were significantly associated with gain- and loss-of-function of GAB1 protein.Conclusion:Loss of GAB1 promotes VEC autophagy which is associated with ASO. GAB1 and its downstream signaling might be potential therapeutic targets for ASO treatment.
简介:TheroleofthetranscriptionfactorNF-κBinshapingthecancermicroenvironmentisbecomingincreasinglyclear.InflammationalterstheactivityofenzymesthatmodulateNF-κBfunction,andcausesextensivechangesingenomicchromatinthatultimatelydrasticallyaltercell-specificgeneexpression.NF-κBregulatestheexpressionofcytokinesandadhesionfactorsthatcontrolinteractionsamongadjacentcells.Assuch,NF-κBfinetunestissuecellularcomposition,aswellastissues'interactionswiththeimmunesystem.Therefore,NF-κBchangesthecellresponsetohormonesandtocontactwithneighboringcells.ActivatingNF-κBconferstranscriptionalandphenotypicplasticitytoacellandtherebyenablesprofoundlocalchangesintissuefunctionandcomposition.ResearchsuggeststhattheregulationofNF-κBtargetgenesisspecificallyalteredincancer.SuchalterationsoccurnotonlyduetomutationsofNF-κBregulatoryproteins,butalsobecauseofchangesintheactivityofspecificproteostaticmodulesandmetabolicpathways.ThisarticledescribesthemolecularmodeofNF-κBregulationwithafewcharacteristicexamplesoftargetgenes.
简介:AbstractBackground:Oncomelania hupensis is only intermediate snail host of Schistosoma japonicum, and distribution of O. hupensis is an important indicator for the surveillance of schistosomiasis. This study explored the feasibility of a random forest algorithm weighted by spatial distance for risk prediction of schistosomiasis distribution in the Yangtze River Basin in China, with the aim to produce an improved precision reference for the national schistosomiasis control programme by reducing the number of snail survey sites without losing predictive accuracy.Methods:The snail presence and absence records were collected from Anhui, Hunan, Hubei, Jiangxi and Jiangsu provinces in 2018. A machine learning of random forest algorithm based on a set of environmental and climatic variables was developed to predict the breeding sites of the O. hupensis intermediated snail host of S. japonicum. Different spatial sizes of a hexagonal grid system were compared to estimate the need for required snail sampling sites. The predictive accuracy related to geographic distances between snail sampling sites was estimated by calculating Kappa and the area under the curve (AUC).Results:The highest accuracy (AUC = 0.889 and Kappa = 0.618) was achieved at the 5 km distance weight. The five factors with the strongest correlation to O. hupensis infestation probability were: (1) distance to lake (48.9%), (2) distance to river (36.6%), (3) isothermality (29.5%), (4) mean daily difference in temperature (28.1%), and (5) altitude (26.0%). The risk map showed that areas characterized by snail infestation were mainly located along the Yangtze River, with the highest probability in the dividing, slow-flowing river arms in the middle and lower reaches of the Yangtze River in Anhui, followed by areas near the shores of China’s two main lakes, the Dongting Lake in Hunan and Hubei and the Poyang Lake in Jiangxi.Conclusions:Applying the machine learning of random forest algorithm made it feasible to precisely predict snail infestation probability, an approach that could improve the sensitivity of the Chinese schistosome surveillance system. Redesign of the snail surveillance system by spatial bias correction of O. hupensis infestation in the Yangtze River Basin to reduce the number of sites required to investigate from 2369 to 1747.
简介:AbstractMany seminal advances have been made in human immunodeficiency virus (HIV)/AIDS research over the past four decades. Treatment strategies, such as gene therapy and immunotherapy, are yielding promising results to effectively control HIV infection. Despite this, a cure for HIV/AIDS is not envisioned in the near future. A recently published academic study has raised awareness regarding a promising alternative therapeutic option for HIV/AIDS, referred to as "selective elimination of host cells capable of producing HIV" (SECH). Similar to the "shock and kill strategy," the SECH approach requires the simultaneous administration of drugs targeting key mechanisms in specific cells to efficiently eliminate HIV replication-competent cellular reservoirs. Herein, we comprehensively review the specific mechanisms targeted by the SECH strategy. Briefly, the suggested cocktail of drugs should contain (i) latency reversal agents to promote the latency reversal process in replication-competent reservoir cells, (ii) pro-apoptotic and anti-autophagy drugs to induce death of infected cells through various pathways, and finally (iii) drugs that eliminate new cycles of infection by prevention of HIV attachment to host cells, and by HIV integrase inhibitor drugs. Finally, we discuss three major challenges that are likely to restrict the application of the SECH strategy in HIV/AIDS patients.
简介:Graft-versus-host疾病(GVHD)是在造血的干细胞移植以后的最普通的复杂并发症。澄清像使用费的受体的角色4(TLR4),它是为细菌的lipopolysaccharides(LPS)的主要受体在尖锐GVHD的发展,我们使用了一个TLR4大美人(TLR4−/−)老鼠GVHD模型并且分析了内在的免疫学的机制。当TLR4−/−老鼠被用作骨头髓和splenocyte房间接枝施主或接受者时,GVHD症状出现和死亡被推迟与相比野类型(TLR4+/+)老鼠。另外,组织病理学说的分析在TLR4−/−BALB/c怪物,肝和小肠织物损坏与最小的淋巴球的渗入被减少。与TLR4+/+,TLR4−/−老鼠相对照,树枝状的房间没在处于一个不成熟的状态感应、留下的LPS期间表示CD80,CD86,CD40,MHC-II或IL-12。而且,TLR4−/−鼠标怒气的能力支持allogeneicT房间增长的树枝状的房间和,特别地T助手房间1(Th1)开发显然与TLR4+/+鼠标相比被稀释interferon-γ的树枝状的房间,和层次;(IFN-γ;)并且IL-10,Th2房间特定的cytokines,在TLR4−/−BALB/c比在TLR4+/+BALB/c妄想的老鼠。总的来说,我们的数据表明TLR4可以在GVHD和基因治疗可能提供的那指向的TLR4的致病起一个作用减少GVHD的风险的一条新处理途径。
简介:AbstractBackground:Pancreatic cancer (PC) is a highly deadly malignancy with few effective therapies. We aimed to unmask the role that long non-coding RNA small nucleolar RNA host gene 6 (SNHG6) plays in PC cells by targeting far upstream element binding protein 1 (FUBP1) via microRNA-26a-5p (miR-26a-5p).Methods:SNHG6 expression was predicted by bioinformatics, followed by verification via reverse transcription quantitative polymerase chain reaction. Then, the interactions among SNHG6, miR-26a-5p, and FUBP1 were detected through online software analysis, dual luciferase reporter assay and RNA pull-down. After that, cells were treated with different small interfering RNAs and/or mimic to determine the interactions among SNHG6, miR-26a-5p, and FUBP1 and their roles in PC cells. Finally, the role of SNHG6 in tumor growth in vivo was evaluated by measuring the growth and weight of transplanted tumors in nude mice. A t-test, one-way and two-way analysis of variance were used for data analysis.Results:Compared with that in normal tissues, SNHG6 was highly expressed in PC tissues (1.00 ± 0.05 vs. 1.56 ± 0.06, t= 16.03, P < 0.001). Compared with that in human pancreatic duct epithelial cells (HPDE6-C7), SNHG6 showed the highest expression in PANC-1 cells (1.00 ± 0.06 vs. 3.87 ± 0.13, t= 34.72, P < 0.001) and the lowest expression in human pancreatic cancer cells (MIAPaCa-2) (1.00 ± 0.06 vs. 1.41 ± 0.07, t= 7.70, P= 0.0015). Compared with the levels in the si-negative control group, SNHG6 (0.97 ± 0.05 vs. 0.21 ± 0.06, t = 16.85, P < 0.001), N-cadherin (0.74 ± 0.05 vs. 0.41 ± 0.04, t= 8.93, P < 0.001), Vimentin (0.55 ± 0.04 vs. 0.25 ± 0.03, t= 10.39, P < 0.001), and β-catenin (0.62 ± 0.05 vs . 0.32 ± 0.03, t= 8.91, P < 0.001) were decreased, while E-cadherin (0.65 ± 0.06 vs. 1.36 ± 0.07, t= 13.34, P < 0.001) was increased after SNHG6 knockdown or miR-26a-5p overexpression, accompanied by inhibited cell proliferation, migration, and invasion. SNHG6 overexpression exerted the opposite effects. SNHG6 upregulated FUBP1 expression by sponging miR-26a-5p. Silencing SNHG6 blocked the growth of PC in vivo.Conclusion:Silencing SNHG6 might ameliorate PC through inhibition of FUBP1 by sponging miR-26a-5p, thus providing further supporting evidence for its use in PC treatment.