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Cellular Therapy

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https://www.readbyqxmd.com/read/28107662/a-simple-and-powerful-co-delivery-system-based-on-ph-responsive-metal-organic-frameworks-for-enhanced-cancer-immunotherapy
#1
Fei Duan, Xiaochen Feng, Xinjian Yang, Wentong Sun, Yi Jin, Huifang Liu, Kun Ge, Zhenhua Li, Jinchao Zhang
Tumor-associated antigens (TAAs)-loaded nanoparticles are able to be actively internalized by antigen-presenting cells (APCs) and have shown promising potential in cancer immunotherapy. However, current TAAs delivery strategy exhibits limitations of complicated synthesis process, low loading efficiency and inefficient CD8(+) cytotoxic T lymphocyte activation leading to unsatisfactory therapeutic effect. Thus, the construction of novel TAAs-delivery systems for enhanced cancer therapy is highly desirable. In this work, we fabricated a very simple yet powerful antigens-delivery system for cancer immunotherapy based-on pH-responsive metal-organic frameworks (MOFs) with size about 30 nm...
January 11, 2017: Biomaterials
https://www.readbyqxmd.com/read/28107631/overcoming-the-heat-endurance-of-tumor-cells-by-interfering-the-anaerobic-glycolysis-metabolism-for-improved-photothermal-therapy
#2
Wei-Hai Chen, Guo-Feng Luo, Qi Lei, Sheng Hong, Wen-Xiu Qiu, Li-Han Liu, Si-Xue Cheng, Xian-Zheng Zhang
In this study, we developed a general method to decorate plasmonic gold nanorods (GNRs) with a CD44-targeting functional polymer, containing hyaluronic acid (HA) targeting moiety and a small molecule Glut1 inhibitor of diclofenac (DC), to obtain GNR/HA-DC. This nanosystem exhibited the superiority of selectively sensitizing tumor cells for photothermal therapy (PTT) by inhibiting the unique anaerobic glycolysis. Upon specifically targeting CD44, sequentially time-dependent DC release could be achieved by the trigger of hyaluronidase (HAase), which abundantly existed in tumor tissue...
January 20, 2017: ACS Nano
https://www.readbyqxmd.com/read/28107571/increased-pd-l1-expression-in-breast-and-colon-cancer-stem-cells
#3
Yanheng Wu, Mingshui Chen, Peihong Wu, Chen Chen, Zhi Ping Xu, Wenyi Gu
Here we report the expression of programmed cell death ligand 1/2 (PD-L1/L2) in breast and colon cancer stem cells (CSCs). The stemness of these cells was confirmed by their surface markers. Using flow cytometry analysis we demonstrated that PD-L1 expression was higher in CSCs of both cancers compared to non-stem like cancer cells. Consistent with this, detection of cellular PD-L1 proteins by Western blot assay also showed increased PD-L1 protein in CSCs. In contrast, only trance amounts of PD-L2 were detected in CSCs of both cancers...
January 20, 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/28107209/nephropathic-cystinosis-an-update
#4
Koenraad R Veys, Mohamed A Elmonem, Fanny O Arcolino, Lambertus van den Heuvel, Elena Levtchenko
PURPOSE OF REVIEW: Over the past few decades, cystinosis, a rare lysosomal storage disorder, has evolved into a treatable metabolic disease. The increasing understanding of its pathophysiology has made cystinosis a prototype disease, delivering new insights into several fundamental biochemical and cellular processes. RECENT FINDINGS: In this review, we aim to provide an overview of the latest advances in the pathogenetic, clinical, and therapeutic aspects of cystinosis...
January 18, 2017: Current Opinion in Pediatrics
https://www.readbyqxmd.com/read/28106829/advances-in-monitoring-cell-based-therapies-with-magnetic-resonance-imaging-future-perspectives
#5
REVIEW
Ethel J Ngen, Dmitri Artemov
Cell-based therapies are currently being developed for applications in both regenerative medicine and in oncology. Preclinical, translational, and clinical research on cell-based therapies will benefit tremendously from novel imaging approaches that enable the effective monitoring of the delivery, survival, migration, biodistribution, and integration of transplanted cells. Magnetic resonance imaging (MRI) offers several advantages over other imaging modalities for elucidating the fate of transplanted cells both preclinically and clinically...
January 19, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28106541/cell-membrane-and-intracellular-expression-of-toll-like-receptor-9-tlr9-in-colorectal-cancer-and-breast-cancer-cell-lines
#6
Shadab Shahriari, Somayeh Rezaeifard, Hamid Reza Moghimi, Mohammad Reza Khorramizadeh, Zahra Faghih
BACKGROUND: Toll-like receptor 9 (TLR9) is a DNA receptor of innate immune system which plays a pivotal role in inflammatory response. Recent evidence reveals over-expression and functionality of TLR9 in a wide variety of cancer cells and its contribution to tumor cell proliferation and survival. OBJECTIVE: In this study, we assessed the aberrant cell surface expression of TLR9 in cancer using cell-lines model. METHODS: Three breast cancer cell-lines (MDA-MB-231, MCF7 and SKBR3) and five colorectal adenocarcinoma cell-lines (HT29, HT29/219, SW480, SW48 and SW1116) in addition to one primary foreskin isolated fibroblast cell were analyzed for cell surface and intracellular expression of TLR9 by flow cytometry method...
January 13, 2017: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/28106540/detection-of-human-breast-cancer-cells-using-a-2-deoxy-d-glucose-functionalized-superparamagnetic-iron-oxide-nanoparticles
#7
Xiu-Hong Shan, Peng Wang, Fei Xiong, Hao-Yue Lu, Hui Hu
BACKGROUND: Breast cancer is one of the most common type of female cancer worldwide and represents 14% of cancer-related deaths in women. Early detection is the most important factor for treatment and prognosis of breast cancer. In most countries, the women are currently screened with mammography only. Even though there has been considerable progress in the detection, surgical therapy, hormonal and target therapy of breast cancer, there are about ∼ 3500 000 women who die from breast cancer each year...
January 13, 2017: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/28105985/impact-of-traumatic-brain-injury-on-dopaminergic-transmission
#8
Yuan-Hao Chen, Eagle Yi-Kung, Tung-Tai Kuo, Jonathan Miller, Yung-Hsiao Chiang, Barry J
Brain trauma is often associated with severe morbidity and is a major public health concern. Even when injury is mild and no obvious anatomic disruption is seen, many individuals suffer disabling neuropsychological impairments such as memory loss, mood dysfunction, substance abuse, and adjustment disorder. These changes may be related to subtle disruption of neural circuits as well as functional changes at the neurotransmitter level. In particular, there is considerable evidence that dopamine physiology in the nigrostriatal and mesocorticolimbic pathways might be impaired after TBI...
January 20, 2017: Cell Transplantation
https://www.readbyqxmd.com/read/28105853/identification-of-potential-molecular-associations-between-chikungunya-virus-non-structural-protein-2-and-human-host-proteins
#9
J Rana, S Gulati, S Rajasekharan, A Gupta, V Chaudhary, S Gupta
Chikungunya virus (CHIKV) non-structural protein 2 (nsP2) is considered to be the master regulator of viral RNA replication and host responses generated during viral infection. This protein has two main functional domains: an N-terminal domain which exhibits NTPase, RNA triphosphatase and helicase activities and a C-terminal protease domain. Understanding how CHIKV nsP2 interacts with its host proteins is essential for elucidating all the required processes for viral replication and pathogenesis along with the identification of potential targets for antiviral therapy...
January 19, 2017: Acta Virologica
https://www.readbyqxmd.com/read/28105760/aerosol-based-airway-epithelial-cell-delivery-improves-airway-regeneration-and-repair
#10
E Kardia, E S Ch'ng, B H Yahaya
Aerosol-based cell therapy has emerged as a novel and promising therapeutic strategy for treating lung diseases. The goal of this study was to determine the safety and efficacy of aerosol-based airway epithelial cell (AEC) delivery in the setting of acute lung injury induced by tracheal brushing in rabbit. 24 hours following injury, exogenous rabbit AECs were labelled with BrdU and aerosolized using the MicroSprayer® Aerosolizer into the injured airway. Histopathological assessments of the injury in the trachea and lungs were quantitatively scored (1 and 5 d after cell delivery)...
January 20, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28105480/-cardiac-remodeling-after-myocardial-infarction-clinical-practice-update
#11
G Ertl, S Brenner, C E Angermann
Heart failure remains a frequent cause of death and is the leading reason for hospitalization in Germany although therapeutic options have significantly increased over the past years particularly in heart failure with reduced ejection fraction. Clinical symptoms are usually preceded by cardiac remodeling, which was originally defined only by left ventricular dilatation and depressed function but is also associated with typical cellular and molecular processes. Healing after acute myocardial infarction is characterized by inflammation, cellular migration and scar formation...
January 19, 2017: Herz
https://www.readbyqxmd.com/read/28105130/biological-characterization-of-sheep-kidney-derived-mesenchymal-stem-cells
#12
Meng Ji, Chunyu Bai, Lu Li, Ya'Nan Fan, Caiyun Ma, Xiangchen Li, Weijun Guan
The aim of the present study was to isolate, culture and characterize sheep metanephric mesenchymal stem cells (MMSCs). The MMSCs were isolated from the kidney tissue of six-week-old sheep fetus. This study investigated whether primary MMSCs could be grown for 26 passages and expressed Oct-4, which is involved in the self-renewal of undifferentiated pluripotent stem cells. The MMSCs also expressed the renal lineage marker gene PAX2, and mesenchymal cell marker genes CD44, FN1 and VIM. Expression of these genes was detected using immunofluorescence and reverse transcription-polymerase chain reaction assays...
December 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28105088/clinical-significance-of-lymphocyte-subset-changes-in-hemophagocytic-lymphohistiocytosis-of-children
#13
Qi An, Yi Wang, Shaoyan Hu, Daihua Fang, Chengmin Xuan, Shumei Xu, Mingwei Jin, Qiang Ji
In order to examine the role of peripheral blood lymphocyte subsets on the diagnosis, treatment and prognosis of hemophagocytic lymphohistiocytosis (HLH), 30 affected children during the acute period of the disease and 30 healthy children within the same age range were selected to test their peripheral blood lymphocyte subsets using flow cytometry and compare these subsets. At the same time, the peripheral blood lymphocyte subsets of 20 children with complete remission from HLH were compared to those of 10 cases who succumbed to the disease...
December 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28104789/a-novel-humanized-mouse-model-of-huntington-disease-for-preclinical-development-of-therapeutics-targeting-mutant-huntingtin-alleles
#14
Amber L Southwell, Niels H Skotte, Erika B Villanueva, Michael E Østergaard, Xiaofeng Gu, Holly B Kordasiewicz, Chris Kay, Daphne Cheung, Yuanyun Xie, Sabine Waltl, Louisa Dal Cengio, Hailey Findlay-Black, Crystal N Doty, Eugenia Petoukhov, Diepiriye Iworima, Ramy Slama, Jolene Ooi, Mahmoud A Pouladi, William X Yang, Eric E Swayze, Punit P Seth, Michael R Hayden
Huntington disease (HD) is a neurodegenerative disease caused by a mutation in the huntingtin (HTT) gene. HTT is a large protein, interacts with many partners and is involved in many cellular pathways, which are perturbed in HD. Therapies targeting HTT directly are likely to provide the most global benefit. Thus there is a need for preclinical models of HD recapitulating human HTT genetics. We previously generated a humanized mouse model of HD, Hu97/18, by intercrossing BACHD and YAC18 mice with knockout of the endogenous mouse HD homolog (Hdh)...
January 18, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28104682/out-ranking-brca1-in-mutation-carriers
#15
REVIEW
Emma Nolan, Geoffrey J Lindeman, Jane E Visvader
Beyond prophylactic mastectomy, there are currently very few options available to BRCA1 mutation carriers to help reduce their risk of developing breast cancer. An effective prevention therapy therefore remains a pressing area of need. Accumulating evidence points to amplification of the progesterone signaling axis in precancerous tissue from BRCA1 mutation carriers. Given that RANKL is an important paracrine mediator of hormonal signaling in breast tissue, there has been considerable interest in exploring a potential role for this pathway in oncogenesis...
January 19, 2017: Cancer Research
https://www.readbyqxmd.com/read/28104455/a-novel-role-for-endothelial-tetrahydrobiopterin-in-mitochondrial-redox-balance
#16
Jade Bailey, Andrew Shaw, Roman Fischer, Brent J Ryan, Benedikt M Kessler, James McCullagh, Richard Wade-Martins, Keith M Channon, Mark J Crabtree
The redox co-factor tetrahydrobiopterin (BH4) regulates nitric oxide (NO) and reactive oxygen species (ROS) production by endothelial NOS (eNOS) and is an important redox-dependent signalling molecule in the endothelium. Loss of endothelial BH4 is observed in cardiovascular disease (CVD) states and results in decreased NO and increased superoxide (O2(-)) generation via eNOS uncoupling. Genetic mouse models of augmented endothelial BH4 synthesis have shown proof of concept that endothelial BH4 can alter CVD pathogenesis...
January 16, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28103766/long-term-exposure-to-imatinib-mesylate-downregulates-hippo-pathway-and-activates-yap-in-a-model-of-chronic-myelogenous-leukemia
#17
Anna Chorzalska, Javier Flores Kim, Karim Roder, Alexander Tepper, Nagib Ahsan, R Shyama Prasad Rao, Adam J Olszewski, Xiaoqing Yu, Dmitry Terentyev, John Morgan, Diana O Treaba, Ting Zhao, Olin Liang, Philip Gruppuso, Patrycja Dubielecka
Despite the success of tyrosine kinase inhibitor (TKI) therapy in chronic myelogenous leukemia (CML), leukemic stem/progenitor cells remain detectable even in the state of deep molecular remission. Mechanisms that allow them to persist despite continued kinase inhibition remain unclear. We have previously shown that prolonged exposure to imatinib mesylate results in dysregulation of Akt/Erk 1/2 signaling, upregulation of miR-181a, enhanced adhesiveness, and resistance to high imatinib mesylate. In order to characterize the molecular basis and reversibility of those effects, we applied gene and protein expression analysis, quantitative phosphoproteomic, and direct miR-181a inhibition to our cellular model of CML cells subjected to prolonged exposure to imatinib mesylate...
January 19, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28103504/l-arginine-alters-the-effect-of-5-fluorouracil-on-breast-cancer-cells-in-favor-of-apoptosis
#18
Mozhgan Jahani, Mehri Azadbakht, Fatemeh Norooznezhad, Kamran Mansouri
Chemoresistance in breast cancer is a major obstacle, especially in p53 mutation types. The aim of this study was to evaluate if a combination therapy of l-arginine with 5-fluorouracil (5-FU) can alter the effect of this chemotherapy drug on breast cancer cells. The study was performed on BT-20 and MCF-7 cell lines. The effects of l-arginine alone and in combination with 5-FU were investigated on cell viability, apoptosis and nitric oxide (NO) production. Drugs effects on the cellular energetic metabolism were investigated through the lactate production and glucose-6-phosphate dehydrogenase (G6PD) activity assay...
January 16, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28102575/bcl-2-family-in-non-small-cell-lung-cancer-its-prognostic-and-therapeutic-implications
#19
Ping-Li Sun, Hironobu Sasano, Hongwen Gao
Non-small cell lung cancer (NSCLC) accounts for approximately 85% of all lung cancers. Despite significant advances in its research of tumor biology and therapy, the prognosis for this neoplasm has still remained poor. The great majority of anticancer agents, regardless of their mechanisms of action, exert their lethal actions on cancer cells by inducing apoptosis following drug-induced cellular damage. Many reported studies have evaluated the prognostic and therapeutic implications of apoptosis in lung cancer, but their exact clinical value has remained unclear...
January 19, 2017: Pathology International
https://www.readbyqxmd.com/read/28102546/ataluren-and-similar-compounds-specific-therapies-for-premature-termination-codon-class-i-mutations-for-cystic-fibrosis
#20
REVIEW
Aisha A Aslam, Colin Higgins, Ian P Sinha, Kevin W Southern
BACKGROUND: Cystic fibrosis is a common life-shortening genetic disorder in the Caucasian population (less common in other ethnic groups) caused by the mutation of a single gene that codes for the production of the cystic fibrosis transmembrane conductance regulator protein. This protein coordinates the transport of salt (and bicarbonate) across cell surfaces and the mutation most notably affects the airways. In the lungs of people with cystic fibrosis, defective protein results in a dehydrated surface liquid and compromised mucociliary clearance...
January 19, 2017: Cochrane Database of Systematic Reviews
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