Abstract:
:Cell-intrinsic reporters such as luciferase (LUC) and red fluorescent protein (RFP) have been commonly utilized in preclinical studies to image tumor growth and to monitor therapeutic responses. While extrinsic reporters that emit near infrared I (NIR-I: 650-950 nm) or near-infrared II (NIR-II: 1000-1700 nm) optical signals have enabled minimization of tissue autofluorescence and light scattering, it has remained unclear as to whether their use has afforded more accurate tumor imaging in small animals. Here, we developed a novel optical imaging construct comprised of rare earth lanthanide nanoparticles coated with biodegradable diblock copolymers and doped with organic fluorophores, generating NIR-I and NIR-II emissive bands upon optical excitation. Simultaneous injection of multiple spectrally-unique nanoparticles into mice bearing tumor implants established via intraperitoneal dissemination of LUC+/RFP+ OVCAR-8 ovarian cancer cells enabled direct comparisons of imaging with extrinsic vs. intrinsic reporters, NIR-II vs. NIR-I signals, as well as targeted vs. untargeted exogenous contrast agents in the same animal and over time. We discovered that in vivo optical imaging at NIR-II wavelengths facilitates more accurate detection of smaller and earlier tumor deposits, offering enhanced sensitivity, improved spatial contrast, and increased depths of tissue penetration as compared to imaging with visible or NIR-I fluorescent agents. Our work further highlights the hitherto underappreciated enhancements in tumor accumulation that may be achieved with intraperitoneal as opposed to intravenous administration of nanoparticles. Lastly, we found discrepancies in the fidelity of tumor uptake that could be obtained by utilizing small molecules for in vivo as opposed to in vitro targeting of nanoparticles to disseminated tumors.
journal_name
Biomaterialsjournal_title
Biomaterialsauthors
Tao Z,Dang X,Huang X,Muzumdar MD,Xu ES,Bardhan NM,Song H,Qi R,Yu Y,Li T,Wei W,Wyckoff J,Birrer MJ,Belcher AM,Ghoroghchian PPdoi
10.1016/j.biomaterials.2017.04.046subject
Has Abstractpub_date
2017-07-01 00:00:00pages
202-215eissn
0142-9612issn
1878-5905pii
S0142-9612(17)30283-1journal_volume
134pub_type
杂志文章相关文献
BIOMATERIALS文献大全abstract::There are few suitable techniques available to sterilize biodegradable polyester three-dimensional tissue engineering scaffolds because they are susceptible to degradation and/or morphological degeneration by high temperature and pressure. We used a novel polyllactide-co-glycolide) scaffold (Osteofoam) to determine th...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/s0142-9612(00)00136-8
更新日期:2001-01-01 00:00:00
abstract::Herein we describe a bio-inspired, affinity binding alginate-sulfate scaffold, designed for the presentation and sustained release of transforming growth factor beta 1 (TGF-β1), and examine its effects on the chondrogenesis of human mesenchymal stem cells (hMSCs). When attached to matrix via affinity interactions with...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/j.biomaterials.2011.10.007
更新日期:2012-01-01 00:00:00
abstract::We have developed a family of synthetic biodegradable polymers that are composed of structural units endogenous to the human metabolism, designated poly(polyol sebacate) (PPS) polymers. Material properties of PPS polymers can be tuned by altering the polyol monomer and reacting stiochiometric ratio of sebacic acid. Th...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/j.biomaterials.2008.08.037
更新日期:2008-12-01 00:00:00
abstract::Collagen in vertebrate animals is often arranged in alternating lamellae or in bundles of aligned fibrils which are designed to withstand in vivo mechanical loads. The formation of these organized structures is thought to result from a complex, large-area integration of individual cell motion and locally-controlled sy...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/j.biomaterials.2012.06.041
更新日期:2012-10-01 00:00:00
abstract::Titanium and its alloys are widely used in load-bearing implants as a result of their excellent mechanical properties and corrosion resistance. In order to improve their performances with respect to osseointegration, the use of bioactive coatings has been suggested. Polypyrrole (PPy) has been chosen as coating polymer...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/s0142-9612(00)00449-x
更新日期:2001-10-01 00:00:00
abstract::Nanobubbles, as a kind of new ultrasound contrast agent (UCAs), have shown promise to penetrate tumor vasculature to allow for targeted imaging. However, their inherent physical instability is an ongoing concern that could weaken their imaging ability with ultrasound. Gas vesicles (GVs), which are genetically encoded,...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/j.biomaterials.2020.119803
更新日期:2020-04-01 00:00:00
abstract::Intervertebral disc (IVD) degeneration is the major cause of lower back pain, while the currently available treatments are symptomatic rather than curative. Tissue engineering is a powerful therapeutic strategy that can restore the normal biomechanical motion of the human spine. The ability of a biphasic elastic scaff...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/j.biomaterials.2007.10.031
更新日期:2008-02-01 00:00:00
abstract::Bioengineered scaffolds have the potential to support and guide injured axons after spinal cord injury, contributing to neural repair. In previous studies we have reported that templated agarose scaffolds can be fabricated into precise linear arrays and implanted into the partially injured spinal cord, organizing grow...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/j.biomaterials.2012.10.070
更新日期:2013-02-01 00:00:00
abstract::We report a new template-directed method for the fabrication of hydroxyapatite (HAp) sponges by using amino-acid-coated HAp nanoparticles dispersed within a viscous polysaccharide (dextran sulfate) matrix, and describe the use of these materials for the viability and proliferation of human bone marrow stromal cells. T...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/j.biomaterials.2005.04.037
更新日期:2005-11-01 00:00:00
abstract::We have designed a dual-aptamer complex specific to both prostate-specific membrane antigens (PSMA) (+) and (-) prostate cancer cells. In the complex, an A10 RNA aptamer targeting PSMA (+) cells and a DUP-1 peptide aptamer specific to PSMA (-) cells were conjugated through streptavidin. Doxorubicin-loaded onto the ste...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/j.biomaterials.2010.11.035
更新日期:2011-03-01 00:00:00
abstract::Umbilical cord mesenchymal stem cells (UCMSCs) have shown great potentials in regenerative medicine for their extensive sources, multilineage differentiation potential, low immunogenicity and self-renewal ability. However, the clinical application of UCMSCs still confronts many challenges including the requirement of ...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/j.biomaterials.2019.119573
更新日期:2020-01-01 00:00:00
abstract::This article reports a novel preparation method of poly(ethylene glycol) (PEG)-polystyrene (PST) amphiphilic block copolymers with well-defined block lengths by using photopolymerization of an iniferter, benzyl N,N-diethyldithiocarbamate. PEG macroiniferters, which were prepared by end-capping of PEG monomethyl ethers...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/s0142-9612(98)00252-x
更新日期:1999-05-01 00:00:00
abstract::Virus-based nanoparticles have shown promise as vehicles for delivering therapeutic genes. However, the rational design of viral vectors that enable selective tropism towards particular types of cells and tissues remains challenging. Here, we explored structural-functional relationships of the adeno-associated virus 2...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/j.biomaterials.2015.11.066
更新日期:2016-02-01 00:00:00
abstract::Chemodynamic therapy (CDT) has recently emerged as a promising treatment for cancer due to the high specificity of CDT towards tumor microenvironment (TME). However, the low efficiency of reactive oxygen species (ROS) generation and the robust ROS defensive mechanisms in cancer cells remain critical hurdles for curren...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/j.biomaterials.2019.119498
更新日期:2019-12-01 00:00:00
abstract::An examination has been made of factors affecting the results obtained from the impinging jet method for evaluating the durability of dental cements. These included intrinsic factors i.e. the powder/liquid ratio used in the mix and the cure time of the cement and extrinsic factors i.e. the pH, ionic strength and tempe...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/0142-9612(86)90106-7
更新日期:1986-05-01 00:00:00
abstract::The phenomenon of light-induced cell detachment is reported. Mouse calvaria-derived, pre-osteoblastic (MC3T3-E1) cells were cultured on a TiO(2) nanodot-coated quartz substrate. After 20 min of UV365 illumination, over 90% of the cells would detach from the surface. Moreover, intact cell sheets could be obtained in th...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/j.biomaterials.2012.09.043
更新日期:2013-01-01 00:00:00
abstract::Most urgent health problems are related to a blood vessel formation failure. The use of stem cells from different sources or species for both in vitro and in vivo engineering of endothelium does not necessarily imply their direct commitment towards a vascular phenotype. In the present study, we used human amniotic flu...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/j.biomaterials.2011.01.071
更新日期:2011-05-01 00:00:00
abstract::There is great demand for constructing well-organized three-dimensional (3D) tissues in vitro. Here, we developed a 3D stacked culture method using biodegradable poly(d,l-lactide-co- glycolide) (PLGA) membranes with defined topography. Pore size and porosity of the membranes can be controlled by changing the moisture ...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/j.biomaterials.2011.12.039
更新日期:2012-03-01 00:00:00
abstract::Alzheimer's disease (AD) is characterized by the loss of neurogenesis and excessive induction of apoptosis. The induction of neurogenesis and inhibition of apoptosis may be a promising therapeutic approach to combating the disease. Celecoxib (CB), a cyclooxygenase-2 specific inhibitor, could offer neuroprotection. Spe...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/j.biomaterials.2017.07.023
更新日期:2017-11-01 00:00:00
abstract::Nanoparticles formulated from biodegradable polymers such as poly(lactic acid) (PLA) and poly(lactide-co-glycolide) (PLGA) are being extensively investigated as non-viral gene delivery systems due to their controlled release characteristics and biocompatibility. PLGA nanoparticles for DNA delivery are mainly formulate...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/j.biomaterials.2003.08.069
更新日期:2004-05-01 00:00:00
abstract::Dual-functional liposomes with pH-responsive cell-penetrating peptide (CPP) and active targeting hyaluronic acid (HA) were fabricated for tumor-targeted drug delivery. A series of synthetic tumor pH-triggered CPPs rich in arginines and histidines were screened by comparing tumor cellular uptake efficiency at pH 6.4 wi...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/j.biomaterials.2012.09.027
更新日期:2012-12-01 00:00:00
abstract::Micro-computed tomography (micro-CT) is an emerging imaging modality, due to the low cost of the imagers as well as their efficiency in establishing high-resolution (1-100 μm) three-dimensional images of small laboratory animals and facilitating rapid, structural and functional in vivo visualization. However use of a ...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/j.biomaterials.2012.09.026
更新日期:2013-01-01 00:00:00
abstract::The first calcium phosphate cements (CPCs) were discovered in the 1980s. Two decades later, the interest for these materials is still rising. The goal of the present document is to review the most recent achievements in the field and to analyze future directions in research and development. ...
journal_title:Biomaterials
pub_type: 杂志文章,评审
doi:10.1016/j.biomaterials.2005.03.049
更新日期:2005-11-01 00:00:00
abstract::Microcontact printing techniques were used to modify silicon substrates with arrays of hexagonal features of N1[3-(trimethoxysilyl) propyl]diethylenetriamine (DETA) surrounded by octadecyltrichlorosilane (OTS), which are hydrophilic, cell-adhesive and hydrophobic, non-adhesive organosilanes, respectively. In the prese...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/s0142-9612(99)00163-5
更新日期:1999-12-01 00:00:00
abstract::Crystalline carbonate- and sodium-and-carbonate-substituted hydroxyapatite (CO3HAp and NaCO3HAp) powders were prepared at room temperature via a heterogeneous reaction between Ca(OH)2/CaCO3/Na2CO3 and (NH4)2HPO4 aqueous solution using the mechanochemical hydrothermal route. X-ray diffraction, infrared spectroscopy, th...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/s0142-9612(01)00158-2
更新日期:2002-02-01 00:00:00
abstract::Although a variety of nanoparticles (NPs) functionalized with amphotericin B, an antifungal agent widely used in the clinic, have been studied in the last years their cytotoxicity profile remains elusive. Here we show that human endothelial cells take up high amounts of silica nanoparticles (SNPs) conjugated with amph...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/j.biomaterials.2013.03.048
更新日期:2013-07-01 00:00:00
abstract::In this work, therapeutic magnetic micro carriers (TMMC) guided in real time by a magnetic resonance imaging (MRI) system are proposed as a mean to improve drug delivery to tumor sites. MRI steering constraints and physiological parameters for the chemoembolization of liver tumors were taken into account to design mag...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/j.biomaterials.2009.08.005
更新日期:2009-10-01 00:00:00
abstract::Tissue engineering and regenerative medicine technologies offer promising therapies for both medicine and dentistry. Our long-term goal is to create functional biomimetic tooth buds for eventual tooth replacement in humans. Here, our objective was to create a biomimetic 3D tooth bud model consisting of dental epitheli...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/j.biomaterials.2016.08.024
更新日期:2016-11-01 00:00:00
abstract::Reconstruction of the genitourinary tract, using engineered urological tissues, requires a mechanically stable biodegradable and biocompatible scaffold and cultured cells. Such engineered autologous tissue would have many clinical implications. In this study a highly porous biodegradable polyesterurethane-foam, DegraP...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/j.biomaterials.2005.08.026
更新日期:2006-03-01 00:00:00
abstract::Capillary morphogenesis is a multistage, multicellular activity that plays a pivotal role in various developmental and pathological situations. In-depth understanding of the regulatory mechanism along with the capability of controlling the morphogenic process will have direct implications on tissue engineering and the...
journal_title:Biomaterials
pub_type: 杂志文章
doi:10.1016/j.biomaterials.2013.12.101
更新日期:2014-03-01 00:00:00