Abstract:
:Traumatic brain injury (TBI) research has focused on moderate to severe injuries as their outcomes are significantly worse than those of a mild TBI (mTBI). However, recent epidemiological evidence has indicated that a series of even mild TBIs greatly increases the risk of neurodegenerative and psychiatric disorders. Neuropathological studies of repeated TBI have identified changes in neuronal ionic concentrations, axonal injury, and cytoskeletal damage as important determinants of later life neurological and mood compromise; yet, there is a paucity of data on the contribution of neurogliovascular dysfunction to the progression of repeated TBI and alterations of brain function in the intervening period. Methods: Here, we established a mouse model of repeated TBI induced via three electromagnetically actuated impacts delivered to the intact skull at three-day intervals and determined the long-term deficits in neurogliovascular functioning in Thy1-ChR2 mice. Two weeks post the third impact, cerebral blood flow and cerebrovascular reactivity were measured with arterial spin labelling magnetic resonance imaging. Neuronal function was investigated through bilateral intracranial electrophysiological responses to optogenetic photostimulation. Vascular density of the site of impacts was measured with in vivo two photon fluorescence microscopy. Pathological analysis of neuronal survival and astrogliosis was performed via NeuN and GFAP immunofluorescence. Results: Cerebral blood flow and cerebrovascular reactivity were decreased by 50±16% and 70±20%, respectively, in the TBI cohort relative to sham-treated animals. Concomitantly, electrophysiological recordings revealed a 97±1% attenuation in peri-contusional neuronal reactivity relative to sham. Peri-contusional vascular volume was increased by 33±2% relative to sham-treated mice. Pathological analysis of the peri-contusional cortex demonstrated astrogliosis, but no changes in neuronal survival. Conclusion: This work provides the first in-situ characterization of the long-term deficits of the neurogliovascular unit following repeated TBI. The findings will help guide the development of diagnostic markers as well as therapeutics targeting neurogliovascular dysfunction.
journal_name
Theranosticsjournal_title
Theranosticsauthors
Adams C,Bazzigaluppi P,Beckett TL,Bishay J,Weisspapir I,Dorr A,Mester JR,Steinman J,Hirschler L,Warnking JM,Barbier EL,McLaurin J,Sled JG,Stefanovic Bdoi
10.7150/thno.24747subject
Has Abstractpub_date
2018-09-09 00:00:00pages
4824-4836issue
17issn
1838-7640pii
thnov08p4824journal_volume
8pub_type
杂志文章相关文献
Theranostics文献大全abstract::Aplastic anemia (AA) is characterized as hypoplasia of bone marrow hematopoietic cells and hematopenia of peripheral blood cells. Though the supplement of exogenous erythropoietin (EPO) has been clinically approved for AA treatment, the side-effects hinder its further application. Here a robust treatment for AA induce...
journal_title:Theranostics
pub_type: 杂志文章
doi:10.7150/thno.46794
更新日期:2020-05-23 00:00:00
abstract::Cerebrospinal fluid (CSF) microRNAs (miRNAs) have emerged as potential biomarkers for minimally invasive diagnosis of central nervous system malignancies. However, despite significant advances in recent years, this field still suffers from poor data reproducibility. This is especially true in cases of infants, conside...
journal_title:Theranostics
pub_type: 杂志文章
doi:10.7150/thno.31502
更新日期:2019-06-19 00:00:00
abstract::Smart drug delivery system with strategic drug distribution is the future state-of-the-art treatment for any malignancy. To investigate therapeutic potential of such nanoparticle mediated delivery system, we examined the efficacy of dual drug-loaded, pH and thermo liable lipid coated mesoporous iron oxide-based magnet...
journal_title:Theranostics
pub_type: 杂志文章
doi:10.7150/thno.15231
更新日期:2016-06-18 00:00:00
abstract::Resistance to the chemotherapeutic drug 5'-azacytidine (5'-AZA) is a major obstacle in the treatment of patients with acute myeloid leukemia (AML). The uridine-cytidine kinase 1 (UCK1) has an established role in activating 5'-AZA and its protein level is significantly downregulated in patients resistant to the drug. H...
journal_title:Theranostics
pub_type: 杂志文章
doi:10.7150/thno.36503
更新日期:2020-01-01 00:00:00
abstract::Protein therapeutics is playing an increasingly critical role in treatment of human diseases. However, current vectors are captured by the digestive endo-lysosomal system, which results in an extremely low fraction (<2%) of protein being released in the cytoplasm. This paper reports a drug-delivering-drug platform (HA...
journal_title:Theranostics
pub_type: 杂志文章
doi:10.7150/thno.23804
更新日期:2018-06-06 00:00:00
abstract::Topical administration permits targeted, sustained delivery of therapeutics to human skin. Delivery to the skin, however, is typically limited to lipophilic molecules with molecular weight of < 500 Da, capable of crossing the stratum corneum. Nevertheless, there are indications protein delivery may be possible in barr...
journal_title:Theranostics
pub_type: 杂志文章
doi:10.7150/thno.21668
更新日期:2018-01-01 00:00:00
abstract::In this study, we investigated the induction of apoptosis by ultrasound in the presence of the novel porphyrin derivative DCPH-P-Na(I). HL-60 cells were exposed to ultrasound for up to 3 min in the presence and absence of DCPH-P-Na(I), and the induction of apoptosis was examined by analyzing cell morphology, DNA fragm...
journal_title:Theranostics
pub_type: 杂志文章
doi:10.7150/thno.3899
更新日期:2012-01-01 00:00:00
abstract::Intraoperative imaging with antibodies labeled with both a radionuclide for initial guidance and a near-infrared dye for adequate tumor delineation may overcome the main limitation of fluorescence imaging: the limited penetration depth of light in biological tissue. In this study, we demonstrate the feasibility and sa...
journal_title:Theranostics
pub_type: 杂志文章
doi:10.7150/thno.23335
更新日期:2018-03-08 00:00:00
abstract::Optical sensing plays an important role in theranostics due to its capability to detect hint biochemical entities or molecular targets as well as to precisely monitor specific fundamental psychological processes. Rare-earth (RE) doped upconversion nanoparticles (UCNPs) are promising for these endeavors due to their un...
journal_title:Theranostics
pub_type: 杂志文章,评审
doi:10.7150/thno.5305
更新日期:2013-03-26 00:00:00
abstract::Extracellular vesicles (EVs), or exosomes, are nanovesicles of endocytic origin that carry host and pathogen-derived protein, nucleic acid, and lipid cargos. They are secreted by most cell types and play important roles in normal cell-to-cell communications but can also spread pathogen- and host-derived molecules duri...
journal_title:Theranostics
pub_type: 杂志文章,评审
doi:10.7150/thno.20576
更新日期:2018-04-09 00:00:00
abstract::Malignant glioma is one of the most untreatable cancers because of the formidable blood-brain barrier (BBB), through which few therapeutics can penetrate and reach the tumors. Biologics have been booming in cancer therapy in the past two decades, but their application in brain tumor has long been ignored due to the im...
journal_title:Theranostics
pub_type: 杂志文章
doi:10.7150/thno.20578
更新日期:2017-08-15 00:00:00
abstract::Immuno-oncological treatment strategies that target abnormal receptor profiles of tumors are an increasingly important feature of cancer therapy. Yet, assessing receptor availability (RA) and drug-target engagement, important determinants of therapeutic efficacy, is challenging with current imaging strategies, largely...
journal_title:Theranostics
pub_type: 杂志文章
doi:10.7150/thno.45273
更新日期:2020-09-14 00:00:00
abstract::We report a new technique to detect enzyme activity inside cells. The method based on Fluorescence Lifetime Imaging (FLIM) technology allows one to follow sensor cleavage by proteolytic enzyme caspase-3. Specifically, we use the FLIM FRET of living cells via the confocal fluorescence microscopy. A specially designed l...
journal_title:Theranostics
pub_type: 杂志文章
doi:10.7150/thno.3885
更新日期:2012-01-01 00:00:00
abstract::Photodynamic therapy (PDT) is an emerging theranostic modality for various cancers and diseases. The focus of this study was the development of tumor-targeting albumin nanoparticles containing photosensitizers for efficient PDT. To produce tumor-targeting albumin nanoparticles, the hydrophobic photosensitizer, chlorin...
journal_title:Theranostics
pub_type: 杂志文章
doi:10.7150/thno/v01p0230
更新日期:2011-04-06 00:00:00
abstract::The ability of brain tissue to regenerate is limited; therefore, brain diseases (i.e., trauma, stroke, tumors) often lead to irreversible motor and cognitive impairments. Therapeutic interventions using various types of injectable biomaterials have been investigated to promote endogenous neural differentiation. Despit...
journal_title:Theranostics
pub_type: 杂志文章
doi:10.7150/thno.35606
更新日期:2019-05-31 00:00:00
abstract::Rationale: Mesenchymal cell-derived osteosarcoma is a rare malignant bone tumor affecting children and adolescents. PTEN down-regulation or function-loss mutation is associated with the aggressive of osteosarcoma. Explicating the regulatory mechanism of PTEN might highlight new targets for improving the survival rate ...
journal_title:Theranostics
pub_type: 杂志文章
doi:10.7150/thno.41279
更新日期:2020-02-03 00:00:00
abstract::Tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) can selectively induce apoptosis in a variety of tumor cells, but not most normal cells. Nevertheless, its therapeutic potential is limited due to the frequent occurrence of resistance in tumor cells, especially hepatocellular carcinoma cell lines. Theref...
journal_title:Theranostics
pub_type: 杂志文章
doi:10.7150/thno.21707
更新日期:2017-10-12 00:00:00
abstract::Periodontitis is a widespread oral disease that results in the loss of alveolar bone. Low-intensity pulsed ultrasound (LIPUS), which is a new therapeutic option, promotes alveolar bone regeneration in periodontal bone injury models. This study investigated the protective effect of LIPUS on oxidative stress in periodon...
journal_title:Theranostics
pub_type: 杂志文章
doi:10.7150/thno.42508
更新日期:2020-08-01 00:00:00
abstract::Rationale: Peripheral nerve injury (PNI) is a great challenge for regenerative medicine. Nerve autograft is the gold standard for clinical PNI repair. Due to its significant drawbacks, artificial nerve guidance conduits (NGCs) have drawn much attention as replacement therapies. We developed a combinatorial NGC consist...
journal_title:Theranostics
pub_type: 杂志文章
doi:10.7150/thno.50825
更新日期:2021-01-01 00:00:00
abstract::Pretargeting is a multi-step process that first has an unlabeled bispecific antibody (bsMAb) localize within a tumor by virtue of its anti-tumor binding site(s) before administering a small, fast-clearing radiolabeled compound that then attaches to the other portion of the bsMAb. The compound's rapid clearance signifi...
journal_title:Theranostics
pub_type: 杂志文章
doi:10.7150/thno.3582
更新日期:2012-01-01 00:00:00
abstract::Rationale: Glioma stem-like cells (GSCs) contribute to temozolomide (TMZ) resistance in gliomas, although the mechanisms have not been delineated. Methods:In vitro functional experiments (colony formation assay, flow cytometric analysis, TUNEL assay) were used to assess the ability of extracellular vesicles (EVs) from...
journal_title:Theranostics
pub_type: 杂志文章
doi:10.7150/thno.47057
更新日期:2021-01-01 00:00:00
abstract::In the past decade, iron oxide nanoparticles (IONPs) have attracted more and more attention for their excellent physicochemical properties and promising biomedical applications. In this review, we summarize and highlight recent progress in the design, synthesis, biocompatibility evaluation and magnetic theranostic app...
journal_title:Theranostics
pub_type: 杂志文章,评审
doi:10.7150/thno.25220
更新日期:2018-05-11 00:00:00
abstract::Rationale: Cytotoxic T-lymphocyte-associated antigen 4 (CTLA-4) is a co-inhibitory checkpoint receptor that is expressed by naïve T-cells in lymph nodes (LNs) to inhibit activation against "self" antigens (Ags). In cancer, anti-CTLA-4 blocks inhibitory action, enabling robust activation of T-cells against tumor Ags pr...
journal_title:Theranostics
pub_type: 杂志文章
doi:10.7150/thno.35280
更新日期:2019-10-22 00:00:00
abstract::CUB-domain containing protein 1 (CDCP1) is a cancer associated cell surface protein that amplifies pro-tumorigenic signalling by other receptors including EGFR and HER2. Its potential as a cancer target is supported by studies showing that anti-CDCP1 antibodies inhibit cell migration and survival in vitro, and tumor g...
journal_title:Theranostics
pub_type: 杂志文章
doi:10.7150/thno.30736
更新日期:2020-01-12 00:00:00
abstract::RNAi-based strategies provide a great therapeutic potential for treatment of various human diseases including kidney disorders, but face the challenge of in vivo delivery and specific targeting. The chitosan delivery system has previously been shown to target siRNA specifically to the kidneys in mice when administered...
journal_title:Theranostics
pub_type: 杂志文章
doi:10.7150/thno.7866
更新日期:2014-08-13 00:00:00
abstract::Fibrinolytic therapy of venous thromboembolism (VTE) is increasingly utilized, yet limited knowledge is available regarding in vivo mechanisms that govern fibrinolytic efficacy. In particular, it is unknown how age-dependent thrombus organization limits direct blood contact with fibrin, the target of blood-based fibri...
journal_title:Theranostics
pub_type: 杂志文章
doi:10.7150/thno.12494
更新日期:2015-09-13 00:00:00
abstract::Recently, self-assembling small dendrimers into supramolecular dendritic systems offers an alternative strategy to develop multifunctional nanoplatforms for biomedical applications. We herein report a dual-responsive supramolecular PEGylated dendritic system for efficient platinum-based drug delivery and near-infrared...
journal_title:Theranostics
pub_type: 杂志文章
doi:10.7150/thno.15081
更新日期:2016-06-05 00:00:00
abstract::Extracellular vesicles, in particular exosomes, have recently gained interest as novel drug delivery vectors due to their biological origin and inherent intercellular biomolecule delivery capability. An in-depth knowledge of their in vivo biodistribution is therefore essential. This work aimed to develop a novel, reli...
journal_title:Theranostics
pub_type: 杂志文章
doi:10.7150/thno.27891
更新日期:2019-02-28 00:00:00
abstract::Recently, rational design of a new class of contrast agents (CAs), based on biopolymers (hydrogels), have received considerable attention in Magnetic Resonance Imaging (MRI) diagnostic field. Several strategies have been adopted to improve relaxivity without chemical modification of the commercial CAs, however, unders...
journal_title:Theranostics
pub_type: 杂志文章
doi:10.7150/thno.27313
更新日期:2019-02-28 00:00:00
abstract::Metastasis is the primary cause of death in patients with advanced cancer. Recently, a high-fat diet was shown to specifically promote the metastatic potential of specific cancer cells in a CD36-dependent manner. However, the molecular basis of the fatty acid (FA)-induced upregulation of CD36 has remained unclear. Met...
journal_title:Theranostics
pub_type: 杂志文章
doi:10.7150/thno.34024
更新日期:2019-07-09 00:00:00