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https://www.readbyqxmd.com/read/28221800/self-associating-poly-ethylene-oxide-block-poly-%C3%AE%C2%B5-caprolactone-peo-b-pcl-drug-conjugates-for-the-delivery-of-stat3-inhibitor-jsi-124-potential-application-in-cancer-immunotherapy
#1
Shyam M Garg, Mohammad Reza Vakili, Ommoleila Molavi, Afsaneh Lavasanifar
Constitutive activation of signal transducer and activator of transcription 3 (STAT3) in tumor cells and tumor associated dendritic cells (DCs) plays a major role in the progression of cancer. JSI-124 (Cucurbitacin I) is a potent inhibitor of STAT3, however, its poor solubility and non-specificity limits its effectiveness in cancer immunotherapy. In order to achieve a nano-carrier for solubilisation and passive targeting of JSI-124 to tumor cells and tumor associated DCs, the drug was chemically conjugated to pendent COOH groups of self-associating poly(ethylene oxide)-block-poly(-carboxylate-ε-caprolactone) (PEO-b-PCCL)...
February 21, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28221292/dermatofibroma-of-the-eyelid-immunohistochemical-diagnosis
#2
Frederick A Jakobiec, Fouad R Zakka, Yufei Tu, Suzanne K Freitag
A 66-year-old man developed a painless 2 mm to 3 mm recurrent nodule at the left upper eyelid margin. Excision disclosed a spindle cell lesion without frank atypia or mitotic activity growing in a twisted fascicular pattern often referred to as storiform. All the surgical margins were involved with tumor. Immunohistochemistry demonstrated that many of the constituent spindle and dendritic tumor cells were CD34, factor XIIIa, and CD 163, the latter 2 being biomarkers for monocytic lineage. The lesion was diagnosed as a dermatofibroma rather than a fibrous histiocytoma, a term that should be reserved for more aggressive lesions of deeper fascial planes...
February 17, 2017: Ophthalmic Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28220989/global-and-local-mechanisms-sustain-axonal-proteostasis-of-transmembrane-proteins
#3
REVIEW
Víctor Hugo Cornejo, Alejandro Luarte, Andrés Couve
The control of neuronal protein homeostasis or proteostasis is tightly regulated both spatially and temporally, assuring accurate and integrated responses to external or intrinsic stimuli. Local or autonomous responses in dendritic and axonal compartments are crucial to sustain function during development, physiology and in response to damage or disease. Axons are responsible for generating and propagating electrical impulses in neurons, and the establishment and maintenance of their molecular composition are subject to extreme constraints exerted by length and size...
February 21, 2017: Traffic
https://www.readbyqxmd.com/read/28220247/myeloid-cells-pave-the-way-for-lymphatic-system-development-and-maintenance
#4
REVIEW
Stoyan Ivanov, Gwendalyn J Randolph
The maintenance of tissue homeostasis is indispensable for health. In particular, removal of toxic compounds from cells and organs is a vital process for the organism. The lymphatic vasculature works in order to ensure the efficient removal of tissue waste. Forbidden over the last decade when more attention was paid to the blood vasculature, studies on the lymphatic vasculature have gained momentum during the last couple of years. The lymphatic vasculature naturally runs parallel to the blood vasculature and their synergistic work is critical for maintaining tissue homeostasis...
February 20, 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/28220059/disturbance-in-maternal-environment-leads-to-abnormal-synaptic-instability-during-neuronal-circuitry-development
#5
REVIEW
Yusuke Hatanaka, Tomohiro Kabuta, Keiji Wada
Adverse maternal environment during gestation and lactation can have negative effects on the developing brain that persist into adulthood and result in behavioral impairment. Recent studies of human and animal models suggest epidemiological and experimental association between disturbances in maternal environments during brain development and the occurrence of neuropsychiatric disorders, including autism spectrum disorder, attention deficit hyperactivity disorder, schizophrenia, anxiety, depression, and neurodegenerative diseases...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28219886/dependence-of-glomerulonephritis-induction-on-novel-intraglomerular-alternatively-activated-bone-marrow-derived-macrophages-and-mac-1-and-pd-l1-in-lupus-prone-nzm2328-mice
#6
Sun-Sang J Sung, Yan Ge, Chao Dai, Hongyang Wang, Shu Man Fu, Rahul Sharma, Young S Hahn, Jing Yu, Thu H Le, Mark D Okusa, Warren K Bolton, Jessica R Lawler
Glomerular damage mediated by glomerulus-infiltrating myeloid-derived cells is a key pathogenic event in lupus nephritis (LN), but the process is poorly understood. Confocal microscopy of kidney sections and flow cytometry analysis of glomerular cells from magnetic bead-purified glomeruli have identified glomerulus-infiltrating leukocyte populations in NZM2328 (NZM) lupus-prone mice with spontaneous chronic glomerulonephritis (GN) and anti-glomerular basement membrane-induced nephritis. The occurrence of a major glomerulus-infiltrating CD11b(+)F4/80(-)I-A(-) macrophage population exhibiting the markers programmed death ligand-1 (PD-L1), Mac-2, and macrophage mannose receptor (CD206) and producing Klf4, Il10, Retnla, Tnf, and Il6 mRNA, which are known to be expressed by alternatively activated (M2b) macrophages, correlated with proteinuria status...
February 20, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28218511/engineering-of-radioiodine-labeled-gold-core-shell-nanoparticles-as-efficient-nuclear-medicine-imaging-agents-for-trafficking-of-dendritic-cells
#7
Sang Bong Lee, Sang-Woo Lee, Shin Young Jeong, GhilSuk Yoon, Sung Jin Cho, Sang Kyoon Kim, In-Kyu Lee, Byeong-Cheol Ahn, Jaetae Lee, Yong Hyun Jeon
The development of highly sensitive, stable, and biocompatible imaging agents allowing visualization of dendritic cell (DC) migration is one of the essential factors for effective DC-based immunotherapy. Here, we used a novel and efficient synthesis approach to develop Radioiodine-124-labeled Tannic Acid Gold Core-Shell Nanoparticles (124I-TA-Au@AuNPs) for DC labeling and in vivo tracking of their migration using positron emission tomography (PET). 124I-TA-Au@AuNPs were produced within 40 min in high yield via straightforward tannic acid-mediated radiolabeling chemistry and incorporation of Au shell, which resulted in high radio-sensitivity and excellent chemical stability of nanoparticles in DCs and living mice...
February 20, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28217813/-vegf-enhances-reconstruction-of-neurovascular-units-in-the-brain-after-injury
#8
Zhi-Guang Pan, Ying Mao, Feng-Yan Sun
Vascular endothelial growth factor (VEGF) was originally recognized as a substance predominantly with vascular permeability and angiogenesis. Recently, more and more evidence indicated that VEGF is expressed in the neurons of the developing and adult brains. Functional investigation demonstrated that VEGF shows several important effects on the neuronal development and physiological function. For example, VEGF accelerates the development of neurons and neural dendritic and axon growth. Besides, VEGF directly and acutely regulates the functions of multiple ion channels of the neuron membrane and changes neural excitability...
February 25, 2017: Sheng Li Xue Bao: [Acta Physiologica Sinica]
https://www.readbyqxmd.com/read/28217126/high-endothelial-venules-and-other-blood-vessels-critical-regulators-of-lymphoid-organ-development-and-function
#9
REVIEW
Ann Ager
The blood vasculature regulates both the development and function of secondary lymphoid organs by providing a portal for entry of hemopoietic cells. During the development of lymphoid organs in the embryo, blood vessels deliver lymphoid tissue inducer cells that initiate and sustain the development of lymphoid tissues. In adults, the blood vessels are structurally distinct from those in other organs due to the requirement for high levels of lymphocyte recruitment under non-inflammatory conditions. In lymph nodes (LNs) and Peyer's patches, high endothelial venules (HEVs) especially adapted for lymphocyte trafficking form a spatially organized network of blood vessels, which controls both the type of lymphocyte and the site of entry into lymphoid tissues...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28216098/potential-influences-of-complement-factor-h-in-autoimmune-inflammatory-and-thrombotic-disorders
#10
Janez Ferluga, Lubna Kouser, Valarmathy Murugaiah, Robert B Sim, Uday Kishore
Complement system homeostasis is important for host self-protection and anti-microbial immune surveillance, and recent research indicates roles in tissue development and remodelling. Complement also appears to have several points of interaction with the blood coagulation system. Deficiency and altered function due to gene mutations and polymorphisms in complement effectors and regulators, including Factor H, have been associated with familial and sporadic autoimmune inflammatory - thrombotic disorders, in which autoantibodies play a part...
February 16, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28215296/neurotrophins-in-the-brain-interaction-with-alcohol-exposure-during-development
#11
K E Boschen, A Y Klintsova
Fetal alcohol spectrum disorders (FASDs) are a result of the teratogenic effects of alcohol on the developing fetus. Decades of research examining both individuals with FASDs and animal models of developmental alcohol exposure have revealed the devastating effects of alcohol on brain structure, function, behavior, and cognition. Neurotrophic factors have an important role in guiding normal brain development and cellular plasticity in the adult brain. This chapter reviews the current literature showing that alcohol exposure during the developmental period impacts neurotrophin production and proposes avenues through which alcohol exposure and neurotrophin action might interact...
2017: Vitamins and Hormones
https://www.readbyqxmd.com/read/28214928/dendritic-cell-rehab-new-strategies-to-unleash-therapeutic-immunity-in-ovarian-cancer
#12
REVIEW
Chang-Suk Chae, Eli Teran-Cabanillas, Juan R Cubillos-Ruiz
Immune-based therapies that induce remarkable and durable responses against melanoma and lung cancer have unfortunately demonstrated limited success in ovarian cancer patients. This is likely due to the exceptional immunoregulatory nature of ovarian tumors, which employ numerous strategies to effectively suppress anti-tumor immunity. Here, we summarize a decade of research indicating that ovarian cancers possess an exquisite capacity to subvert the activity of host dendritic cells (DCs) as a key mechanism to impede the development and maintenance of protective T cell-based immune responses...
February 18, 2017: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/28214915/evaluation-of-the-gard-assay-in-a-blind-cosmetics-europe-study
#13
Henrik Johansson, Robin Gradin, Andy Forreryd, Maria Agemark, Kathrin Zeller, Angelica Johansson, Olivia Larne, Erwin van Vliet, Carl Borrebaeck, Malin Lindstedt
Chemical hypersensitivity is an immunological response towards foreign substances, commonly referred to as sensitizers, which gives rise primarily to the clinical symptoms known as allergic contact dermatitis. For the purpose of mitigating risks associated with consumer products, chemicals are screened for sensitizing effects. Historically, such predictive screenings have been performed using animal models. However, due to industrial and regulatory demand, animal models for the purpose of sensitization assessment are being replaced by animal-free testing methods, a global trend that is spreading across industries and market segments...
February 17, 2017: ALTEX
https://www.readbyqxmd.com/read/28214610/virosome-bound-antigen-enhances-dc-dependent-specific-cd4-t-cell-stimulation-inducing-a-th1-and-treg-profile-in-vitro
#14
Rebecca A M Blom, Mario Amacker, Christian Moser, R Maarten van Dijk, Raffaela Bonetti, Emilie Seydoux, Sean R R Hall, Christophe von Garnier, Fabian Blank
There is considerable interest to develop antigen-carriers for immune-modulatory clinical applications, but insufficient information is available on their effects on antigen-presenting cells. We employed virosomes coupled to ovalbumin (OVA) to study their interaction with murine bone marrow-derived dendritic cells (BMDCs) and modulation of downstream T cell responses. BMDCs were treated in vitro with virosomes or liposomes prior to determining BMDC phenotype, viability, and intra-cellular trafficking. Antigen-specific CD4(+) T cell activation was measured by co-culture of BMDCs with DO11...
February 15, 2017: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/28214378/calcium-signaling-through-l-type-calcium-channels-role-in-pathophysiology-of-spinal-nociceptive-transmission
#15
REVIEW
Olivier Roca-Lapirot, Houda Radwani, Franck Aby, Frédéric Nagy, Marc Landry Pascal Fossat
L-type voltage-gated calcium channels (VGCCs) are ubiquitous channels in the central nervous system. L-type calcium channels (LTCs) are mostly post-synaptic channels regulating neuronal firing and gene expression. They play a role in important physio-pathological processes such as learning and memory, Parkinson's disease, autism and, as recognized more recently, in the pathophysiology of pain processes. Classically, the fundamental role of these channels in cardiovascular functions has limited the use of classical molecules to treat LTC-dependent disorders...
February 18, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28214198/tumor-derived-cd4-cd25-regulatory-t-cells-inhibit-dendritic-cells-function-by-ctla-4
#16
Xin Chen, Yong Du, Qingqing Hu, ZhiMing Huang
PURPOSE: CD4+CD25+regulatoryT cells (Tregs) play an important role in anti-tumor immune responses. Poor prognosis and declining survival rates have intimate connection with high Treg expression in cancer patients. Cytotoxic T Lymphocyte-associated protein (CTLA-4) is one of the most prominent molecules on Treg. In our previous research, we have demonstrated that HCC-derived Tregs can interfere with Dendritic cells (DCs) function and down-modulate CD80/CD86 on DCs in vitro in a cell-contact dependent way...
December 21, 2016: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28213441/secreted-metalloproteinase-adamts-3-inactivates-reelin
#17
Himari Ogino, Arisa Hisanaga, Takao Kohno, Yuta Kondo, Kyoko Okumura, Takana Kamei, Tempei Sato, Hiroshi Asahara, Hitomi Tsuiji, Masaki Fukata, Mitsuharu Hattori
The secreted glycoprotein Reelin regulates embryonic brain development and adult brain functions. It has been suggested that reduced Reelin activity contributes to the pathogenesis of several neuropsychiatric and neurodegenerative disorders, such as schizophrenia and Alzheimer's disease; however, non-invasive methods that can upregulate Reelin activity in vivo have yet to be developed. We previously found that the proteolytic cleavage of Reelin within Reelin repeat 3 (N-t site) abolishes Reelin activity in vitro, but it remains controversial as to whether this effect occurs in vivo Here we partially purified the enzyme that mediates the N-t cleavage of Reelin from the culture supernatant of cerebral cortical neurons...
February 17, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28213366/tumor-infiltrating-and-peripheral-blood-t-cell-immunophenotypes-predict-early-relapse-in-localized-clear-cell-renal-cell-carcinoma
#18
Nicolas A Giraldo, Etienne Becht, Yann Vano, Florent Petitprez, Laetitia Lacroix, Pierre Validire, Rafael Sanchez-Salas, Alexandre Ingels, Stephane Marie Oudard, Audrey Moatti, Bénédicte Buttard, Sarah Bourras, Claire Germain, Xavier Cathelineau, Wolf-Herman Fridman, Catherine Sautes-Fridman
PURPOSE: The efficacy of PD-1 Checkpoint Blockade (ChB) as adjuvant therapy in localized clear cell Renal Cell Carcinoma (ccRCC) is currently unknown. The identification of tumor microenvironment (TME) prognostic biomarkers in this setting may help to define which patients could benefit from ChB and to uncover new therapeutic targets. EXPERIMENTAL DESIGN: We performed multiparametric flow cytometry immunophenotypic analysis of T cells isolated from tumor tissue (TIL), adjacent non-malignant renal tissue (RIL) and peripheral blood (PBL), in a cohort of patients (n=40) with localized ccRCC...
February 17, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28212788/immunology-of-alveolar-and%C3%A2-cystic-echinococcosis-ae-and-ce
#19
B Gottstein, P Soboslay, E Ortona, J Wang, A Siracusano, D Α Vuitton
Cystic and alveolar echinococcosis are severe chronic helminthic diseases caused by the cystic growth or the intrahepatic tumour-like growth of the metacestode of Echinococcus granulosus or Echinococcus multilocularis, respectively. Both parasites have evolved sophisticated strategies to escape host immune responses, mainly by manipulating and directing this immune response towards anergy and/or tolerance. Recent research studies have revealed a number of respective immunoregulatory mechanisms related to macrophages and dendritic cell as well as T cell activities (regulatory T cells, Tregs)...
2017: Advances in Parasitology
https://www.readbyqxmd.com/read/28212670/characterization-of-schistosoma-japonicum-cp1412-protein-as-a-novel-member-of-the-ribonuclease-t2-molecule-family-with-immune-regulatory-function
#20
Xue-Dan Ke, Shuang Shen, Li-Jun Song, Chuan-Xin Yu, Mihoko Kikuchi, Kenji Hirayama, Hong Gao, Jie Wang, Xuren Yin, Yuan Yao, Qian Liu, Wei Zhou
BACKGROUND: Schistosome infection typically induces a polarized Th2 type host immune response. As egg antigen molecules play key roles in this immunoregulatory process, clarifying their functions in schistosomiasis would facilitate the development of vaccine and immunotherapeutic methods. Schistosoma japonicum (Sj) CP1412 (GenBank: AY57074.1) has been identified as a new member of the RNase T2 family with immune regulatory functions. METHODS: The expression plasmid Sj CP1412-pET28a was constructed and transformed into bacteria for production of recombinant Sj CP1412 protein (rSj CP1412) via IPTG induction...
February 17, 2017: Parasites & Vectors
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