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https://www.readbyqxmd.com/read/30316082/molecular-imprinted-s-nitrosothiols-nanoparticles-for-nitric-oxide-control-release-as-cancer-target-chemotherapy
#1
Tuanwei Liu, Zhenyun Qiao, Jilan Wang, Ping Zhang, Zhide Zhang, Dian-Shun Guo, Xinlin Yang
It is the goal for the development of cancer target chemotherapy with specific recognition, efficient killing the tumor cells and tissues to avoid the intolerable side effects. Molecular imprinted polymer (MIPs) nanoparticles could introduce kinds of specific bio-markers (template molecules) into the nanoparticles with the subsequent removal, leaving special holes in the structure with predictable recognition specificity with cells. Herein, we design and synthesize a kind of sialic acid (SA) over-expressed tumor target hollow double-layer imprinted polymer nanoparticles with S-nitrosothiols for nitric oxide (NO)-releasing as chemotherapy...
October 3, 2018: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/30316037/netrin-signaling-defines-the-regional-border-in-the-drosophila-visual-center
#2
Takumi Suzuki, Chuyan Liu, Satoru Kato, Kohei Nishimura, Hiroki Takechi, Tetsuo Yasugi, Rie Takayama, Satoko Hakeda-Suzuki, Takashi Suzuki, Makoto Sato
The brain consists of distinct domains defined by sharp borders. So far, the mechanisms of compartmentalization of developing tissues include cell adhesion, cell repulsion, and cortical tension. These mechanisms are tightly related to molecular machineries at the cell membrane. However, we and others demonstrated that Slit, a chemorepellent, is required to establish the borders in the fly brain. Here, we demonstrate that Netrin, a classic guidance molecule, is also involved in the compartmental subdivision in the fly brain...
September 28, 2018: iScience
https://www.readbyqxmd.com/read/30315965/effects-of-curcumin-on-hypoxia-inducible-factor-as-a-new-therapeutic-target
#3
REVIEW
Afsane Bahrami, Stephen L Atkin, Muhammed Majeed, Amirhossein Sahebkar
Hypoxia-inducible factor-1 (HIF-1) is a transcription factor that consists of two subunits, the HIF-1α and HIF-1β (ARNT). Under hypoxic conditions, HIF-1 is an adaptive system that regulates the transcription of multiple genes associated with growth, angiogenesis, proliferation, glucose transport, metabolism, pH regulation and cell death. However, aberrant HIF-1 activation contributes to the pathophysiology of several human diseases such as cancer, ischemic cardiovascular disorders, and pulmonary and kidney diseases...
October 10, 2018: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/30315588/hybrid-density-functional-study-on-the-electronic-structures-and-properties-of-p3ht-pbs-and-p3ht-cds-hybrid-interface-for-photovoltaic-applications
#4
Thao P Nguyen, Ji Hoon Shim
The efficiency of charge transport mainly depends on the interfacial energy level alignment between the conjugated polymer and the inorganic substrate. It provides an accurate understanding, predicting as well as controlling the optimal power conversion efficiency of various type of hybrid photovoltaic systems. In this article, we use hybrid functional (HSE06) to study the electronic structures and properties at the interface of poly(3-hexylthiophene)(P3HT)/CdS and P3HT/PbS for solar cell applications. We found that the dangling bonds at the inorganic surface introduce in-gap states and greatly reduce the device performance...
September 15, 2018: Journal of Computational Chemistry
https://www.readbyqxmd.com/read/30315540/mechanobiology-and-vascular-remodeling-from-membrane-to-nucleus
#5
Ying-Xin Qi, Yue Han, Zong-Lai Jiang
Vascular endothelial cells (ECs) and smooth muscle cells (VSMCs) are constantly exposed to hemodynamic forces in vivo, including flow shear stress and cyclic stretch caused by the blood flow. Numerous researches revealed that during various cardiovascular diseases such as atherosclerosis, hypertension, and vein graft, abnormal (pathological) mechanical forces play crucial roles in the dysfunction of ECs and VSMCs, which is the fundamental process during both vascular homeostasis and remodeling. Hemodynamic forces trigger several membrane molecules and structures, such as integrin, ion channel, primary cilia, etc...
2018: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/30315228/reduced-graphene-oxide-triggered-epithelial-mesenchymal-transition-in-a549-cells
#6
Yanyan Liao, Weiyi Wang, Xiaomei Huang, Yongyan Sun, Shen Tian, Peng Cai
Graphene and its derivatives have exhibited wide potential applications in electronics, structural engineering and medicine. However, over utilization and untreated discharge may cause its distribution into environmental as well as biological chain, which raised the concerns of potential health risk as a potential hazard. Accumulating evidence has demonstrated that graphene derivatives induce lung fibrosis in vivo, so overall goal of this study was to explore the molecular mechanisms underlying the pulmonary fibrotic responses of reduced graphene oxide (rGO), using in vitro assays...
October 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/30315093/swi-snf-component-arid1a-restrains-pancreatic-neoplasia-formation
#7
Sam C Wang, Ibrahim Nassour, Shu Xiao, Shuyuan Zhang, Xin Luo, Jeon Lee, Lin Li, Xuxu Sun, Liem H Nguyen, Jen-Chieh Chuang, Lan Peng, Scott Daigle, Jeanne Shen, Hao Zhu
OBJECTIVE: ARID1A is commonly mutated in pancreatic ductal adenocarcinoma (PDAC), but the functional effects of ARID1A mutations in the pancreas are unclear. Understanding the molecular mechanisms that drive PDAC formation may lead to novel therapies. DESIGN: Concurrent conditional Arid1a deletion and Kras activation mutations were modelled in mice. Small-interfering RNA (siRNA) and CRISPR/Cas9 were used to abrogate ARID1A in human pancreatic ductal epithelial cells...
October 12, 2018: Gut
https://www.readbyqxmd.com/read/30315001/collagen-degradation-in-tuberculosis-pathogenesis-the-biochemical-consequences-of-hosting-an-undesired-guest
#8
REVIEW
Flavia Squeglia, Alessia Ruggiero, Rita Berisio
The scenario of chemical reactions prompted by the infection by Mycobacterium tuberculosis is huge. The infection generates a localized inflammatory response, with the recruitment of neutrophils, monocytes, and T-lymphocytes. Consequences of this immune reaction can be the eradication or containment of the infection, but these events can be deleterious to the host inasmuch as lung tissue can be destroyed. Indeed, a hallmark of tuberculosis (TB) is the formation of lung cavities, which increase disease development and transmission, as they are sites of high mycobacterial burden...
October 11, 2018: Biochemical Journal
https://www.readbyqxmd.com/read/30314898/long-noncoding-rna-pcat6-functions-as-an-oncogene-by-binding-to-ezh2-and-suppressing-lats2-in-non-small-cell-lung-cancer
#9
Xuefei Shi, Zhili Liu, Zhicong Liu, Xueren Feng, Feng Hua, Xixian Hu, Bin Wang, Kaihua Lu, Fengqi Nie
BACKGROUND: NSCLC (non-small-cell lung cancer) is the leading cause of cancer-related mortality worldwide. Both epigenetic and genetic changes contribute to the initiation, development and metastasis of NSCLC. Recently, accumulating data have begun to support the notion that long noncoding RNAs (lncRNAs) function as new crucial regulators of diverse biological processes, including proliferation, apoptosis and metastasis, and play crucial roles in tumorigenesis. Nevertheless, further study is warranted to comprehensively determine lncRNAs' functions and potential mechanism...
October 9, 2018: EBioMedicine
https://www.readbyqxmd.com/read/30314482/cgmp-interacts-with-tropomyosin-and-downregulates-actin-tropomyosin-myosin-complex-interaction
#10
Lihui Zou, Junhua Zhang, Jingli Han, Wenqing Li, Fei Su, Xiaomao Xu, Zhenguo Zhai, Fei Xiao
BACKGROUND: The nitric oxide-soluble guanylate cyclase-cyclic guanosine monophosphate (NO-sGC-cGMP) signaling pathway, plays a critical role in the pathogenesis of pulmonary arterial hypertension (PAH); however, its exact molecular mechanism remains undefined. METHODS: Biotin-cGMP pull-down assay was performed to search for proteins regulated by cGMP. The interaction between cGMP and tropomyosin was analyzed with antibody dependent pull-down in vivo. Tropomyosin fragments were constructed to explore the tropomyosin-cGMP binding sites...
October 12, 2018: Respiratory Research
https://www.readbyqxmd.com/read/30314454/expression-of-fibronectin-in-esophageal-squamous-cell-carcinoma-and-its-role-in-migration
#11
Jiefei Xiao, Weilin Yang, Bo Xu, Haoshuai Zhu, Jianyong Zou, Chunhua Su, Jian Rong, Tao Wang, Zhenguang Chen
BACKGROUND: Fibronectin (FN) is a high-molecular-weight glycoprotein component of the extracellular matrix involved in cell adhesion, migration, metastasis, proliferation and differentiation, as well as embryogenesis, wound healing, and blood coagulation. Considerable recent research has established that tumor expression of FN is closely associated with tumor formation and development as well as disease prognosis. However, the mechanisms underlying this relationship have remained unclear...
October 12, 2018: BMC Cancer
https://www.readbyqxmd.com/read/30314301/influence-of-molecular-design-on-the-targeting-properties-of-abd-fused-mono-and-bi-valent-anti-her3-affibody-therapeutic-constructs
#12
Mohamed Altai, Charles Dahlsson Leitao, Sara S Rinne, Anzhelika Vorobyeva, Christina Atterby, Stefan Ståhl, Vladimir Tolmachev, John Löfblom, Anna Orlova
Overexpression of human epidermal growth factor receptor type 3 (HER3) is associated with tumour cell resistance to HER-targeted therapies. Monoclonal antibodies (mAbs) targeting HER3 are currently being investigated for treatment of various types of cancers. Cumulative evidence suggests that affibody molecules may be appropriate alternatives to mAbs. We previously reported a fusion construct (3A3) containing two HER3-targeting affibody molecules flanking an engineered albumin-binding domain (ABD035 ) included for the extension of half-life in circulation...
October 11, 2018: Cells
https://www.readbyqxmd.com/read/30312890/identification-and-comprehensive-analysis-of-the-characteristics-and-roles-of-leucine-rich-repeat-receptor-like-protein-kinase-lrr-rlk-genes-in-sedum-alfredii-hance-responding-to-cadmium-stress
#13
Xuelian He, Tongyu Feng, Dayi Zhang, Renying Zhuo, Mingying Liu
Sedum alfredii Hance is a Zn/Cd co-hyperaccumulator and its underlying molecular mechanism of Cd tolerance is worthy to be elucidated. Although numerous studies have reported the uptake, sequestration and detoxification of Cd in S. alfredii Hance, how it senses Cd-stress stimuli and transfers signals within tissues remains unclear. Leucine-rich repeat receptor-like protein kinases (LRR-RLKs) are vital for plant growth, development, immunity and signal transduction. Till now, there is lack of comprehensive studies addressing their functions in S...
October 9, 2018: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/30312759/iron-addiction-with-ferroptosis-resistance-in-asbestos-induced-mesothelial-carcinogenesis-toward-the-era-of-mesothelioma-prevention
#14
Shinya Toyokuni
Cancer is the primary cause of human mortality in most countries. This tendency has increased as various medical therapeutics have advanced, which suggests that we cannot escape carcinogenesis, although the final outcome may be modified by exposomes and statistics. Cancer is classified by its cellular differentiation. Mesothelial cells are distinct in that they line somatic cavities, facilitating the smooth movement of organs, but are not exposed to the external environment. Malignant mesothelioma, or simply mesothelioma, develops either in the pleural, peritoneal or pericardial cavities, or in the tunica vaginalis testes...
October 9, 2018: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/30312753/effects-of-carbamazepine-on-the-p-gp-and-cyp3a-expression-correlated-with-pxr-or-nf-%C3%AE%C2%BAb-activity-in-the-bend-3-cells
#15
Xian-Jin Ke, Yong-Fei Cheng, Nian Yu, Qing Di
Drug-resistant epilepsy (DRE) is present in 20-30% of all patients who develop epilepsy. Growing evidences demonstrated that glutamate released during seizures to increase the brain P-glycoprotein (P-gp) expression. Carbamazepine (CBZ) is known to influence the P-gp and cytochrome P450 (CYP) expression. However, the exact molecular mechanism is still unknown. We investigated that the effects of NF-κB and pregnane X receptor (PXR) activity on P-gp and CYP3A expression in mouse brain endothelial (bEnd.3) cells treated with l-glutamate (mimicking the seizure conditions), CBZ (mimicking the AED treating conditions) or both (l-glutamate plus CBZ) through qPCR and Western blotting assay...
October 9, 2018: Neuroscience Letters
https://www.readbyqxmd.com/read/30312731/androgen-deprivation-induced-zbtb46-ptgs1-signaling-promotes-neuroendocrine-differentiation-of-prostate-cancer
#16
Wei-Yu Chen, Tao Zeng, Yu-Chng Wen, Hsiu-Lien Yeh, Kuo-Ching Jiang, Wei-Hao Chen, Qingfu Zhang, Jiaoti Huang, Yen-Nien Liu
Androgen receptor (AR) targeting is an important therapeutic strategy for treating prostate cancer. Most tumors progress to castration-resistant prostate cancer (CRPC) and develop the neuroendocrine (NE) phenotype under androgen deprivation therapy (ADT). The molecular basis for NE transdifferentiation after ADT remains incompletely understood. Herein, we show that an immunocyte expression protein, ZBTB46, induces inflammatory response gene expression and contributes to NE differentiation of prostate cancer cells...
October 9, 2018: Cancer Letters
https://www.readbyqxmd.com/read/30312719/a-hybrid-of-mpeg-b-pcl-and-g1-pea-dendrimer-for-enhancing-delivery-of-antibiotics
#17
Calvin A Omolo, Rahul S Kalhapure, Nikhil Agrawal, Mahantesh Jadhav, Sanjeev Rambharose, Chunderika Mocktar, Thirumala Govender
The development of novel materials is essential for the efficient delivery of drugs. Therefore, the aim of the study was to synthesize a linear polymer dendrimer hybrid star polymer (3-mPEA) comprising of a generation one poly (ester-amine) dendrimer (G1-PEA) and a diblock copolymer of methoxy poly (ethylene glycol)-b-poly(ε-caprolactone) (mPEG-b-PCL) for formulation of nanovesicles for efficient drug delivery. The synthesized star polymer was characterized by FTIR, 1 H and 13 C NMR, HRMS, GPC and its biosafety was confirmed by MTT assays...
October 9, 2018: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/30312028/uterine-epithelial-cells-undergo-a-plasma-membrane-transformation-during-early-pregnancy-in-the-domestic-cat-felis-catus
#18
Jessica S Dudley, Christopher R Murphy, Michael B Thompson, Tanya Carter, Bronwyn M McAllan
Mammals exhibit similar changes in uterine epithelial morphology during early pregnancy despite having a diverse range of placental types. The uterine epithelium undergoes rapid morphological and molecular change ("plasma membrane transformation") during the early stages of pregnancy to allow attachment of the blastocyst. The domestic cat, Felis catus is in the order Carnivora; all species within the Carnivora studied so far develop an endotheliochorial placenta during pregnancy. The endotheliochorial placental type is a common form of placental invasion in mammals...
September 2018: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/30312026/systematic-analysis-of-the-smooth-muscle-wall-phenotype-of-the-pharyngeal-arch-arteries-during-their-reorganization-into-the-great-vessels-and-its-association-with-hemodynamics
#19
Jessica Ryvlin, Stephanie E Lindsey, Jonathan T Butcher
Early outflow morphogenesis is a critical event in cardiac development. Understanding the mechanical and molecular based morphogenetic relationships at early stages of cardiogenesis is essential for the advancement of cardiovascular technology related to congenital heart defects. In this study, we pair molecular changes in pharyngeal arch artery (PAA) vascular smooth muscle cells (VSMCs) and hemodynamic changes throughout development. We focus on Hamburger Hamilton stage 24 to 36 chick embryos, using both Doppler ultrasound and histological sections to phenotype PAA VSMCs, and establish a relationship between hemodynamics and PAA composition...
October 12, 2018: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/30312004/therapeutic-targeting-of-cellular-stress-responses-in-cancer
#20
REVIEW
Miao Chen, Songbo Xie
Similar to bacteria, yeast, and other organisms that have evolved pathways to respond to environmental stresses, cancer cells develop mechanisms that increase genetic diversity to facilitate adaptation to a variety of stressful conditions, including hypoxia, nutrient deprivation, exposure to DNA-damaging agents, and immune responses. To survive, cancer cells trigger mechanisms that drive genomic instability and mutation, alter gene expression programs, and reprogram the metabolic pathways to evade growth inhibition signaling and immune surveillance...
October 12, 2018: Thoracic Cancer
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