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https://www.readbyqxmd.com/read/28435448/inhibition-of-platelet-function-using-liposomal-nanoparticles-blocks-tumor-metastasis
#1
Yinlong Zhang, Jingyan Wei, Shaoli Liu, Jing Wang, Xuexiang Han, Hao Qin, Jiayan Lang, Keman Cheng, Yiye Li, Yingqiu Qi, Greg J Anderson, Saraswati Sukumar, Suping Li, Guangjun Nie
Extensive evidence has shown that platelets support tumor metastatic progression by inducing epithelial-mesenchymal transition of cancer cells and by shielding circulating tumor cells from immune-mediated elimination. Therefore, blocking platelet function represents a potential new avenue for therapy focused on eliminating metastasis. Here we show that liposomal nanoparticles bearing the tumor-homing pentapeptide CREKA (Cys-Arg-Glu-Lys-Ala) can deliver a platelet inhibitor, ticagrelor, into tumor tissues to specifically inhibit tumor-associated platelets...
2017: Theranostics
https://www.readbyqxmd.com/read/28418672/a-liposome-encapsulated-ruthenium-polypyridine-complex-as-a-theranostic-platform-for-triple-negative-breast-cancer
#2
Jianliang Shen, Hancheon Kim, Joy Wolfram, Chao-Feng Mu, Wei Zhang, Haoran Liu, Yan Xie, Junhua Mai, Hang Zhang, Zhi Li, Maria L Guevara, Zong-Wan Mao, Haifa Shen
Ruthenium coordination complexes have the potential to serve as novel theranostic agents for cancer. However, a major limitation in their clinical implementation is effective tumor accumulation. In this study, we have developed a liposome-based theranostic nanodelivery system for [Ru(phen)2dppz](ClO4)2 (Lipo-Ru). This ruthenium polypyridine complex emits a strong fluorescent signal when incorporated in the hydrophobic lipid bilayer of the delivery vehicle or in the DNA helix, enabling visualization of the therapeutic agent in tumor tissues...
April 18, 2017: Nano Letters
https://www.readbyqxmd.com/read/28417106/comparative-analysis-of-the-combined-therapeutic-effects-of-lipoprostaglandin-e1-on-sudden-idiopathic-sensorineural-hearing-loss
#3
Haeng Seon Shim, Joon Soo Kim, Myung Gu Kim
BACKGROUND AND OBJECTIVES: Viral and vascular disorders are considered to be a major cause of idiopathic sudden sensorineural hearing loss (ISSNHL). Lipoprostaglandin E1 (lipo-PGE1) has vasodilating activity and has been used to treat ISSNHL. The purpose of this study was to determine the specific therapeutic effects of lipo-PGE1 and compare them to other treatment modalities for ISSNHL. SUBJECTS AND METHODS: The study group had 1,052 patients diagnosed with ISSNHL...
April 2017: Journal of Audiology & Otology
https://www.readbyqxmd.com/read/28406829/the-lipo-bodylift-a-new-circumferential-body-contouring-technique-useful-after-bariatric-surgery
#4
Nicolas Bertheuil, Benoit Chaput, Antoine De Runz, Paul Girard, Raphael Carloni, Eric Watier
No abstract text is available yet for this article.
April 3, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28406826/the-lipo-body-lift-a-new-circumferential-body-contouring-technique-useful-after-bariatric-surgery
#5
Morgane Atanasiu, Audrey Patoué
No abstract text is available yet for this article.
April 3, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28369428/novel-approaches-to-neisseria-meningitidis-vaccine-design
#6
Myron Christodoulides, John Heckels
A range of vaccines is available for preventing life-threatening diseases caused by infection with Neisseria meningitidis (meningococcus, Men). Capsule polysaccharide (CPS)-conjugate vaccines are successful prophylactics for serogroup MenA, MenC, MenW and MenY infections and outer membrane vesicle (OMV) vaccines have been used successfully for controlling clonal serogroup MenB infections. MenB vaccines based on recombinant proteins identified by reverse vaccinology (Bexsero®) and proteomics (Trumenba®) approaches have recently been licensed and Bexsero® has been introduced into the UK infant immunization program...
March 22, 2017: Pathogens and Disease
https://www.readbyqxmd.com/read/28331317/cyclic-rgd-peptide-modified-liposomal-drug-delivery-system-for-targeted-oral-apatinib-administration-enhanced-cellular-uptake-and-improved-therapeutic-effects
#7
Zhiwang Song, Yun Lin, Xia Zhang, Chan Feng, Yonglin Lu, Yong Gao, Chunyan Dong
Apatinib is an oral tyrosine kinase inhibitor, which selectively targets vascular endothelial growth factor receptor 2 and has the potential to treat many tumors therapeutically. Cyclic arginylglycylaspartic acid (cRGD)- and polyethylene glycol (PEG)-modified liposomes (cRGD-Lipo-PEG) were constructed to act as a targeted delivery system for the delivery of apatinib to the human colonic cancer cell line, HCT116. These cRGD-modified liposomes specifically recognized integrin αvβ3 and exhibited greater uptake efficiency with respect to delivering liposomes into HCT116 cells when compared to nontargeted liposomes (Lipo-PEG), as well as greater death of tumor cells and apoptosis...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28316269/development-of-a-novel-one-step-production-system-for-injectable-liposomes-under-gmp
#8
Ryo Araki, Takashi Matsuzaki, Ayumi Nakamura, Daisaku Nakatani, Shoji Sanada, Hai Ying Fu, Keiji Okuda, Masaki Yamato, Shota Tsuchida, Yasushi Sakata, Tetsuo Minamino
There are few methods available for injectable liposome production under good manufacturing practices (GMP). Injectable liposome production processes under GMP generally consist of liposome formation, size homogenization, organic solvent removal, liposome concentration control and sterilization. However, these complicated and separate processes make it difficult to maintain scalability, reproducibility and sterility. To overcome these limitations, we developed a novel one-step in-line closed liposome production system that integrated all production processes by combining the in-line thermal mixing device with modified counterflow dialysis...
March 20, 2017: Pharmaceutical Development and Technology
https://www.readbyqxmd.com/read/28289716/muscular-dystrophy-in-ptfr-cavin-1-null-mice
#9
Shi-Ying Ding, Libin Liu, Paul F Pilch
ice and humans lacking the caveolae component polymerase I transcription release factor (PTRF, also known as cavin-1) exhibit lipo- and muscular dystrophy. Here we describe the molecular features underlying the muscle phenotype for PTRF/cavin-1 null mice. These animals had a decreased ability to exercise, and exhibited muscle hypertrophy with increased muscle fiber size and muscle mass due, in part, to constitutive activation of the Akt pathway. Their muscles were fibrotic and exhibited impaired membrane integrity accompanied by an apparent compensatory activation of the dystrophin-glycoprotein complex along with elevated expression of proteins involved in muscle repair function...
March 9, 2017: JCI Insight
https://www.readbyqxmd.com/read/28287262/synthetic-glycopolymers-for-highly-efficient-differentiation-of-embryonic-stem-cells-into-neurons-lipo-or-not
#10
Qi Liu, Zhonglin Lyu, You Yu, Zhen-Ao Zhao, Shijun Hu, Lin Yuan, Gaojian Chen, Hong Chen
To realize the potential application of embryonic stem cells (ESCs) for the treatment of neurodegenerative diseases, it is a prerequisite to develop an effective strategy for the neural differentiation of ESCs so as to obtain adequate amount of neurons. Considering the efficacy of glycosaminoglycans (GAG) and their disadvantages (e.g., structure heterogeneity and impurity), GAG-mimicking glycopolymers (designed polymers containing functional units similar to natural GAG) with or without phospholipid groups were synthesized in the present work and their ability to promote neural differentiation of mouse ESCs (mESCs) was investigated...
March 24, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28284052/high-yield-production-of-rhizobium-nodb-chitin-deacetylase-and-its-use-for-in%C3%A2-vitro-synthesis-of-lipo-chitinoligosaccharide-precursors
#11
Rémi Chambon, Stéphanie Pradeau, Sébastien Fort, Sylvain Cottaz, Sylvie Armand
Lipo-chitinoligosaccharides (LCOs) are key molecules for the establishment of plant-microorganisms symbiosis. Interactions of leguminous crops with nitrogen-fixing rhizobial bacteria involve Nod factors, while Myc-LCOs improve the association of most plants with arbuscular mycorrhizal fungi. Both Nod factors and Myc-LCOs are composed of a chitinoligosaccharide fatty acylated at the non-reducing end accompanied with various substituting groups. One straightforward way to access LCOs is starting from chitin hydrolysate, an abundant polysaccharide found in crustacean shells, followed by regioselective enzymatic cleavage of an acetyl group from the non-reducing end of chitin tetra- or pentaose, and subsequent chemical introduction of N-acyl group...
April 10, 2017: Carbohydrate Research
https://www.readbyqxmd.com/read/28278503/doubly-labeled-water-method-and-accelerometer-for-the-measurement-of-energy-expenditure-in-human-immunodeficiency-virus-infected-patients
#12
Mariana P Guimarães, Eduardo Ferriolli, Karina Pfrimer, Anderson M Navarro
BACKGROUND: Several studies have reported increased resting energy expenditure (REE) in human immunodeficiency virus (HIV)-infected patients with HIV-associated lipodystrophy syndrome (HALS). However, limited data exist on the total energy expenditure (TEE). This study was aimed at evaluating the REE and TEE of HIV-infected patients with and without HALS by using the doubly labeled water (DLW) technique and the activity monitor based on accelerometry system (AM), and comparing the results obtained using both methods...
2017: Annals of Nutrition & Metabolism
https://www.readbyqxmd.com/read/28272275/the-lipo-body-lift-a-new-circumferential-body-contouring-technique-useful-after-bariatric-surgery
#13
Sandy Dast, Christian Herlin, Richard Vaucher, Razvan Mercut, Lidia Dessena, Raphael Sinna
No abstract text is available yet for this article.
March 7, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28272273/the-lipo-bodylift-an-ideal-technique-for-type-i-and-ii-massive-weight-loss-patients-reply-to-dast-et-al
#14
Nicolas Bertheuil, Benoit Chaput, Paul Girard, Raphael Carloni, Eric Watier, Antoine De Runz
No abstract text is available yet for this article.
March 7, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28267669/cell-targeted-dual-reduction-and-ph-responsive-saccharide-lipoic-acid-modified-poly-l-lysine-and-poly-acrylic-acid-polyionic-complex-nanogels-for-drug-delivery
#15
Su-Chun How, Yu-Fon Chen, Pin-Lun Hsieh, Steven S-S Wang, Jeng-Shiung Jan
A cell-targeted, reduction-/pH-responsive polyionic complex (PIC) nanogel system was developed by simply mixing cationic lactobionolatone/lipoic acid-modified poly(L-lysine) (PLL-g-(Lipo-Lac)) and anionic poly(acrylic acid) (PAA), followed by disulfide cross-linking. The nanogels with sizes smaller than 150nm can be prepared at certain mixing ratio via forming interchain disulfide cross-link and helical PAA/PLL complexes. In vitro drug release study showed that Doxorubicin (Dox) release from the nanogels was significantly enhanced by increasing acidity and/or introducing disulfide cleaving agent...
May 1, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28219808/photoluminescent-and-biodegradable-polycitrate-polyethylene-glycol-polyethyleneimine-polymers-as-highly-biocompatible-and-efficient-vectors-for-bioimaging-guided-sirna-and-mirna-delivery
#16
Min Wang, Yi Guo, Meng Yu, Peter X Ma, Cong Mao, Bo Lei
Development of biodegradable and biocompatible non-viral vectors with intrinsical multifunctional properties such as bioimaging ability for highly efficient nucleic acids delivery still remains a challenge. Here, a biodegradable poly (1, 8-octanedio-citric acid)-co-polyethylene glycol grafted with polyethyleneimine (PEI) (POCG-PEI) polymers with the photoluminescent capacity were synthesized for nucleic acids delivery (siRNA and miRNA). POCG-PEI polymers can efficiently bind various nucleic acids, protect them against enzymatic degradation and release the genes in the presence of polyanionic heparin...
February 17, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28193011/optimization-of-an-anti-poly-ethylene-glycol-anti-peg-cell-based-capture-system-to-quantify-peg-and-pegylated-molecules
#17
Wen-Wei Lin, Yuan-Chin Hsieh, Yi-An Cheng, Kuo-Hsiang Chuang, Chien-Chiao Huang, Chih-Hung Chuang, I-Ju Chen, Kai-Wen Cheng, Yun-Chi Lu, Ta-Chun Cheng, Yeng-Tseng Wang, Steve R Roffler, Tian-Lu Cheng
Sensitive determination of the pharmacokinetics of PEGylated molecules can accelerate the process of drug development. Here, we combined different anti-PEG Fab expressing 293T cells as capture cells (293T/3.3, 293T/6.3, and 293T/15-2b cells) with four detective anti-PEG antibodies (3.3, 6.3, 7A4, or 15-2b) to optimize an anti-PEG cell-based sandwich ELISA. Then, we quantified free PEG (mPEG2K-NH2 and mPEG5K-NH2) or PEG-conjugated small molecules (mPEG5K-biotin and mPEG5K-NIR797), proteins (PegIntron and Pegasys), and nanoparticles (Liposomal-Doxorubicin and quantum-dots)...
December 20, 2016: Analytical Chemistry
https://www.readbyqxmd.com/read/28167263/asialoglycoprotein-receptor-targeted-liposomes-loaded-with-a-norcantharimide-derivative-for-hepatocyte-selective-targeting
#18
Xiaolin Liu, Mengting Han, Jiawen Xu, Sicong Geng, Yu Zhang, Xaohui Ye, Jingxin Gou, Tian Yin, Haibing He, Xing Tang
In order to overcome the shortcomings associated with the clinical application of norcantharidin (NCTD), including intense irritation and a short half-life, and to obtain a hepatocyte-selective liposome system with high encapsulation efficiency (EE) and low leakage, we synthesized a C14 alkyl chain norcantharimide derivative of NCTD (2-tetradecylhexahydro-1H-4,7-epoxyisoindole-1,3(2H)-dione, N-14NCTDA). Asialoglycoprotein receptor-targeted, galactosylated liposomes loaded with N-14NCTDA (GAL-Lipo) were prepared by the lipid film hydration method...
February 4, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28159300/attenuation-of-alpha-naphthylisothiocyanate-anit-induced-biliary-fibrosis-by-depletion-of-hepatic-macrophages-in-rats
#19
Hossain M Golbar, Takeshi Izawa, Alexandra Bondoc, Kavindra K Wijesundera, Anusha H Tennakoon, Mitsuru Kuwamura, Jyoji Yamate
Biliary fibrosis is a complex process in which macrophages and myofibroblasts may play central roles. We investigated biliary fibrosis lesions induced in the Glisson's sheath in rats by alpha-naphthylisothiocyanate (ANIT) administration under macrophage depletion. Hepatic macrophages were depleted in F344 rats with liposome-encapsulated clodronate (CLD) (10mL/kg body weight, i.v) followed by bile duct injury with ANIT (75mg/kg body weight, i.p) (ANIT+CLD group). Rats received empty-liposomes (Lipo) followed by ANIT, and served as control (ANIT+Lipo group)...
January 31, 2017: Experimental and Toxicologic Pathology: Official Journal of the Gesellschaft Für Toxikologische Pathologie
https://www.readbyqxmd.com/read/28156162/contribution-of-both-olfactory-and-systemic-pathways-for-brain-targeting-of-nimodipine-loaded-lipo-pluronics-micelles-in-vitro-characterization-and-in-vivo-biodistribution-study-after-intranasal-and-intravenous-delivery
#20
COMPARATIVE STUDY
Hassan M Rashed, Rehab N Shamma, Emad B Basalious
Nimodipine (NM) is the only FDA-approved drug for treating subarachnoid hemorrhage induced vasospasm. NM has poor oral bioavailability (5-13%) due to its low aqueous solubility, and extensive first pass metabolism. The objective of this study is to develop radiolabeled NM-loaded LPM and to test its ability prolong its circulation time, reduce its frequency of administration and eventually target it to the brain tissue. NM was radiolabeled with (99m)Tc by direct labeling method using sodium dithionite. Different reaction conditions that affect the radiolabeling yield were studied...
November 2016: Drug Delivery
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