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https://www.readbyqxmd.com/read/28109139/-imiquimod-combined-with-dendritic-cell-vaccine-decreases-treg-proportion-and-enhances-anti-tumor-responses-in-mice-bearing-melanoma
#1
Shurong Ren, Qiubo Wang, Yanli Zhang, Cuixiu Lu, Ping Li, Yumei Li
Objective To investigate the therapeutic effect of Toll-like receptor 7 (TLR7) agonist imiquimod combined with dendritic cell (DC)-based tumor vaccine on melanoma in mice and the potential mechanism. Methods Melanoma-bearing mouse models were established by subcutanous injection of B16-OVA cells into C57BL/6 mice. DCs were isolated from mouse bone marrow and propagated in culture medium with recombinant mouse granulocyte-macrophage colony-stimulating factor (rmGM-CSF) and recombinant mouse interleukin-4 (rmIL-4)...
February 2017: Xi Bao Yu Fen Zi Mian Yi Xue za Zhi, Chinese Journal of Cellular and Molecular Immunology
https://www.readbyqxmd.com/read/28108734/valproic-acid-inhibits-glioblastoma-multiforme-cell-growth-via-paraoxonase-2-expression
#2
Jen-Ho Tseng, Cheng-Yi Chen, Pei-Chun Chen, Sheng-Huang Hsiao, Chi-Chen Fan, Yu-Chih Liang, Chie-Pein Chen
We studied the potential mechanisms of valproic acid (VPA) in the treatment of glioblastoma multiforme (GBM). Using the human U87, GBM8401, and DBTRG-05MG GBM-derived cell lines, VPA at concentrations of 5 to 20 mM induced G2/M cell cycle arrest and increased the production of reactive oxygen species (ROS). Stress-related molecules such as paraoxonase 2 (PON2), cyclin B1, cdc2, and Bcl-xL were downregulated, but p27, p21 and Bim were upregulated by VPA treatment. VPA response element on the PON2 promoter was localized at position -400/-1...
January 18, 2017: Oncotarget
https://www.readbyqxmd.com/read/28107769/the-transcriptional-modulator-ifrd1-controls-pgc-1%C3%AE-expression-under-short-term-adrenergic-stimulation-in-brown-adipocytes
#3
Gyujin Park, Tetsuhiro Horie, Takashi Kanayama, Kazuya Fukasawa, Takashi Iezaki, Yuki Onishi, Kakeru Ozaki, Yukari Nakamura, Yukio Yoneda, Takeshi Takarada, Eiichi Hinoi
Sympathetic tone activates the function of classical brown adipocytes, which constitutively exist in the brown adipose tissue, and inducible brown adipocytes (so-called beige adipocytes), which sporadically reside within the white adipose tissue. Here we identified the transcriptional modulator interferon-related developmental regulator 1 (Ifrd1) as a negative regulator of thermogenic and mitochondrial gene expression in brown adipocytes. Ifrd1 expression was markedly induced by cold exposure and administration of CL-316243 (a β3 adrenergic agonist) in interscapular brown adipose and inguinal subcutaneous white adipose tissues, but not in epididymal visceral white adipose tissue, in vivo...
January 20, 2017: FEBS Journal
https://www.readbyqxmd.com/read/28106508/gelma-encapsulated-hdpscs-and-huvecs-for-dental-pulp-regeneration
#4
A Khayat, N Monteiro, E E Smith, S Pagni, W Zhang, A Khademhosseini, P C Yelick
Pulpal revascularization is commonly used in the dental clinic to obtain apical closure of immature permanent teeth with thin dentinal walls. Although sometimes successful, stimulating bleeding from the periapical area of the tooth can be challenging and in turn may deleteriously affect tooth root maturation. Our objective here was to define reliable methods to regenerate pulp-like tissues in tooth root segments (RSs). G1 RSs were injected with human dental pulp stem cells (hDPSCs) and human umbilical vein endothelial cells (HUVECs) encapsulated in 5% gelatin methacrylate (GelMA) hydrogel...
February 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28100035/stromal-cells-act-as-guardians-for-endothelial-progenitors-by-reducing-their-immunogenicity-after-co-transplantation
#5
Naima Souidi, Meaghan Stolk, Juliane Rudeck, Dirk Strunk, Katharina Schallmoser, Hans-Dieter Volk, Martina Seifert
Regeneration of injured tissues requires effective therapeutic strategies supporting vasculogenesis. The lack of instantly available autologous cell sources and immunogenicity of allogeneic endothelial (progenitor) cells limits clinical progress. Based on the immunosuppressive potency of mesenchymal strem/progenitor cells (MSCs), we investigated whether crosstalk between endothelial colony-forming progenitor cells (ECFCs) and MSCs during vasculogenesis could lower allogeneic T cell responses against ECFCs allowing long-term engraftment in vivo...
January 18, 2017: Stem Cells
https://www.readbyqxmd.com/read/28099124/browning-of-white-adipose-tissue-lessons-from-experimental-models
#6
Thereza Cristina Lonzetti Bargut, Vanessa Souza-Mello, Marcia Barbosa Aguila, Carlos Alberto Mandarim-de-Lacerda
Beige or brite (brown-in-white) adipocytes are present in white adipose tissue (WAT) and have a white fat-like phenotype that when stimulated acquires a brown fat-like phenotype, leading to increased thermogenesis. This phenomenon is known as browning and is more likely to occur in subcutaneous fat depots. Browning involves the expression of many transcription factors, such as PR domain containing 16 (PRDM16) and peroxisome proliferator-activated receptor (PPAR)-γ, and of uncoupling protein (UCP)-1, which is the hallmark of thermogenesis...
January 18, 2017: Hormone Molecular Biology and Clinical Investigation
https://www.readbyqxmd.com/read/28088407/far-off-and-close-up-dry-matter-intake-modulate-indicators-of-immunometabolic-adaptations-to-lactation-in-subcutaneous-adipose-tissue-of-pasture-based-transition-dairy-cows
#7
M Vailati-Riboni, G Farina, F Batistel, A Heiser, M D Mitchell, M A Crookenden, C G Walker, J K Kay, S Meier, J R Roche, J J Loor
The common practice of increasing dietary energy density during the close-up dry period (last ∼3 wk prepartum) has been recently associated with a higher incidence of metabolic disorders after calving. Despite these reports, over-feeding of metabolizable energy (ME) during the far-off, nonlactating period is a common management policy aimed at achieving optimum calving body condition score (BCS) in pasture-based systems, as cows are generally thinner than total mixed ration cows at the end of lactation. Our hypothesis was that both far-off and close-up overfeeding influence the peripartum adipose tissue changes associated with energy balance and inflammatory state...
January 11, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28087221/varenicline-provokes-impulsive-action-by-stimulating-%C3%AE-4%C3%AE-2-nicotinic-acetylcholine-receptors-in-the-infralimbic-cortex-in-a-nicotine-exposure-status-dependent-manner
#8
Yu Ohmura, Hitomi Sasamori, Iku Tsutsui-Kimura, Takeshi Izumi, Takayuki Yoshida, Mitsuhiro Yoshioka
Higher impulsivity is a risk factor for criminal involvement and drug addiction. Because nicotine administration enhances impulsivity, the effects of stop-smoking aids stimulating nicotinic acetylcholine receptors (nAChRs) on impulsivity must be determined in different conditions. Our goals were 1) to confirm the relationship between varenicline, a stop-smoking aid and α4β2 nAChR partial agonist, and impulsivity, 2) to elucidate the mechanisms underlying the effects of varenicline, 3) to examine whether a low dose of varenicline that does not evoke impulsive action could block the stimulating effects of nicotine on impulsive action, 4) to determine whether the route of administration could modulate the effects of varenicline on impulsive action, and 5) to determine whether the effects of varenicline on impulsivity could be altered by smoking status...
January 10, 2017: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/28086774/androgenic-effects-of-aqueous-and-methanolic-extracts-of-ficus-asperifolia-in-male-wistar-rats
#9
Pierre Watcho, Hermine Meli Watio, Modeste Wankeu-Nya, Esther Ngadjui, Patrick Deeh Defo, Pepin Alango Nkeng-Efouet, Telesphore Benoit Nguelefack, Albert Kamanyi
BACKGROUND: Androgen deficiency is a clinical syndrome resulting from the inability of the testes to produce physiological levels of testosterone due to a disturbance occurring at one or more levels of the hypothalamic-pituitary-testicular axis. The present study was undertaken to evaluate the androgenic properties of aqueous and methanolic extracts of Ficus asperifolia on normal and castrated immature rats. METHODS: Normal rats were treated either per os with aqueous or methanolic extract of Ficus asperifolia (100 mg/kg or 500 mg/kg b...
January 13, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28081535/efficacy-and-safety-of-continuous-subcutaneous-infusion-of-recombinant-human-gonadotropins-for-congenital-micropenis-during-early-infancy%C3%A2
#10
Athanasia Stoupa, Dinane Samara-Boustani, Isabelle Flechtner, Graziella Pinto, Isabelle Jourdon, Laura González-Briceño, Maud Bidet, Kathleen Laborde, Didier Chevenne, Anne-Elodie Millischer, Henri Lottmann, Thomas Blanc, Yves Aigrain, Michel Polak, Jacques Beltrand
BACKGROUND: Early postnatal administration of gonadotropins to infants with congenital hypogonadotropic hypogonadism (CHH) can mimic minipuberty, thereby increasing penile growth. We assessed the effects of gonadotropin infusion on stretched penile length (SPL) and hormone levels in infants with congenital micropenis. METHODS: Single-center study including 6 males with micropenis in case of isolated CHH (n = 4), panhypopituitarism (n = 1), and partial androgen insensitivity syndrome (PAIS; n = 1)...
January 12, 2017: Hormone Research in Pædiatrics
https://www.readbyqxmd.com/read/28076474/growth-factors-and-cox2-in-wound-healing-an-experimental-study-with-ehrlich-tumors
#11
Flávio L L Salgado, Ricardo Artigiani-Neto, Gaspar de Jesus Lopes-Filho
Background: Healing is an innate biological phenomenon, and carcinogenesis acquired, but with common humoral and cellular elements. Carcinogenesis interferes negatively in healing. Aim: To evaluate the histological changes in laparotomy scars of healthy Balb/c mice and with an Ehrlich tumor in its various forms of presentation. Methods: Fifty-four mice were divided into three groups of 18 animals. First group was the control; the second had Ehrlich tumor with ascites; and the third had the subcutaneous form of this tumor...
November 2016: Arquivos Brasileiros de Cirurgia Digestiva: ABCD, Brazilian Archives of Digestive Surgery
https://www.readbyqxmd.com/read/28075470/combined-effects-of-atorvastatin-and-aspirin-on-growth-and-apoptosis-in-human-prostate-cancer-cells
#12
Yan He, Huarong Huang, Chelsea Farischon, Dongli Li, Zhiyun Du, Kun Zhang, Xi Zheng, Susan Goodin
Epidemiologic studies indicate the use of either statins or aspirin have beneficial effects in prostate cancer patients. The present study was undertaken to evaluate the effects and mechanisms of atorvastatin and aspirin alone or in combination in human prostate cancer cells cultured in vitro and grown as xenograft tumors in severe combined immune-deficient (SCID) mice. The growth and apoptosis in prostate cancer cells were determined by the trypan blue exclusion and propidium iodide staining assays. Activation of the nuclear factor κB (NF-κB) was measured by luciferase reporter assay, and the levels of phospho-signal transducer and activator of transcription (Stat)3 and phospho-extracellular signal-regulated kinase (Erk)1/2 were determined by western blot analysis...
February 2017: Oncology Reports
https://www.readbyqxmd.com/read/28070968/bacterial-short-chain-fatty-acid-metabolites-modulate-the-inflammatory-response-against-infectious-bacteria
#13
R O Corrêa, A Vieira, E M Sernaglia, M Lancellotti, A T Vieira, M J Avila-Campos, H G Rodrigues, M A R Vinolo
Short chain fatty acids (SCFAs), predominately acetic, propionic and butyric acids, are bacterial metabolites with an important role in the maintenance of homeostasis due to their metabolic and immunomodulatory actions. Some evidence suggests that they may also be relevant during infections. Therefore, we aimed to investigate the effects of SCFAs in the effector functions of neutrophils to an opportunistic pathogenic bacteria, Aggregatibacter actinomycetemcomitans (A. actinomycetemcomitans). Using a subcutaneous model to generate a mono, isolated infection of A...
January 9, 2017: Cellular Microbiology
https://www.readbyqxmd.com/read/28066881/short-acting-erythropoiesis-stimulating-agents-for-anaemia-in-predialysis-patients
#14
REVIEW
Deirdre Hahn, Christopher I Esezobor, Noha Elserafy, Angela C Webster, Elisabeth M Hodson
BACKGROUND: The benefits of erythropoiesis-stimulating agents (ESA) for chronic kidney disease (CKD) patients have been previously demonstrated. However, the efficacy and safety of short-acting epoetins administered at larger doses and reduced frequency as well as of new epoetins and biosimilars remains uncertain. OBJECTIVES: This review aimed to evaluate the benefits and harms of different routes, frequencies and doses of epoetins (epoetin alpha, epoetin beta and other short-acting epoetins) for anaemia in adults and children with CKD not receiving dialysis...
January 9, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28064086/forced-swimming-induced-oxytocin-release-into-blood-and-brain-effects-of-adrenalectomy-and-corticosterone-treatment
#15
Luz Torner, Paul M Plotsky, Inga D Neumann, Trynke R de Jong
The oxytocin (OXT) system is functionally linked to the HPA axis in a reciprocal and complex manner. Certain stressors are known to cause the simultaneous release of OXT and adrenocorticotrophic hormone (ACTH) followed by corticosterone (CORT). Furthermore, brain OXT attenuates ACTH and CORT responses. Although there are some indications of CORT influencing OXT neurotransmission, specific effects of CORT on neurohypophyseal or intra-hypothalamic release of OXT have not been studied in detail. In the present set of experiments, adult male rats were adrenalectomized (ADX) or sham-operated and fitted with a jugular vein catheter and/or microdialysis probe targeting the hypothalamic paraventricular nucleus (PVN)...
December 16, 2016: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/28063991/the-effect-of-polyanhydride-chemistry-in-particle-based-cancer-vaccines-on-the-magnitude-of-the-antitumor-immune-response
#16
Emad I Wafa, Sean M Geary, Jonathan T Goodman, Balaji Narasimhan, Aliasger K Salem
: The goal of this research is to study the effect of polyanhydride chemistry on the immune response induced by a prophylactic cancer vaccine based on biodegradable polyanhydride particles. To achieve this goal, different compositions of polyanhydride copolymers based on 1,8-bis-(p-carboxyphenoxy)-3,6-dioxaoctane (CPTEG), 1,6-bis-(p-carboxyphenoxy)-hexane (CPH), and sebacic anhydride (SA) were synthesized by melt polycondensation, and polyanhydride copolymer particles encapsulating a model antigen, ovalbumin (OVA), were then synthesized using a double emulsion solvent evaporation technique...
January 4, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28063031/pharmacokinetics-and-pharmacodynamics-of-afamelanotide-and-its-clinical-use-in-treating-dermatologic-disorders
#17
REVIEW
Elisabeth I Minder, Jasmin Barman-Aksoezen, Xiaoye Schneider-Yin
Afamelanotide, the first α-melanocyte-stimulating hormone (MSH) analogue, synthesized in 1980, was broadly investigated in all aspects of pigmentation because its activity and stability were higher than the natural hormone. Afamelanotide binds to the melanocortin-1 receptor (MC1R), and MC1R signaling increases melanin synthesis, induces antioxidant activities, enhances DNA repair processes and modulates inflammation. The loss-of-function variants of the MC1R present in fair-skinned Caucasians are less effectively activated by the natural hormone...
January 6, 2017: Clinical Pharmacokinetics
https://www.readbyqxmd.com/read/28062253/spinal-neuropeptide-expression-and-neuropathic-behavior-in-the-acute-and-chronic-phases-after-spinal-cord-injury-effects-of-progesterone-administration
#18
María F Coronel, Marcelo J Villar, Pablo R Brumovsky, Susana L González
Patients with spinal cord injury (SCI) develop chronic pain that severely compromises their quality of life. We have previously reported that progesterone (PG), a neuroprotective steroid, could offer a promising therapeutic strategy for neuropathic pain. In the present study, we explored temporal changes in the expression of the neuropeptides galanin and tyrosine (NPY) and their receptors (GalR1 and GalR2; Y1R and Y2R, respectively) in the injured spinal cord and evaluated the impact of PG administration on both neuropeptide systems and neuropathic behavior...
January 3, 2017: Peptides
https://www.readbyqxmd.com/read/28057472/glutamatergic-modulation-of-noradrenaline-release-in-the-rat-median-preoptic-area
#19
Makoto Takahashi, Yasushi Hayashi, Junichi Tanaka
The present study was carried out to investigate whether glutamatergic receptor mechanisms modulate the release of noradrenaline (NA) in the region of the median preoptic nucleus (MnPO) using intracerebral microdialysis techniques in freely moving rats. Perfusion of N-methyl-d-asparatate (NMDA, 10 and 50μM) through the microdialysis probe significantly enhanced dialysate NA concentration in the region of the MnPO. Local perfusion of the NMDA antagonist dizocilpine (MK801, 10 and 50μM) did not change the basal release of NA in the MnPO area...
January 2, 2017: Brain Research Bulletin
https://www.readbyqxmd.com/read/28049526/atrial-natriuretic-peptide-protects-against-bleomycin-induced-pulmonary-fibrosis-via-vascular-endothelial-cells-in-mice-anp-for-pulmonary-fibrosis
#20
Atsuko Okamoto, Takashi Nojiri, Kazuhisa Konishi, Takeshi Tokudome, Koichi Miura, Hiroshi Hosoda, Jun Hino, Mikiya Miyazato, Yohkoh Kyomoto, Kazuhisa Asai, Kazuto Hirata, Kenji Kangawa
BACKGROUND: Pulmonary fibrosis is a life-threatening disease characterized by progressive dyspnea and worsening pulmonary function. Atrial natriuretic peptide (ANP), a heart-derived secretory peptide used clinically in Japan for the treatment of acute heart failure, exerts a wide range of protective effects on various organs, including the heart, blood vessels, kidneys, and lungs. Its therapeutic properties are characterized by anti-inflammatory and anti-fibrotic activities mediated by the guanylyl cyclase-A (GC-A) receptor...
January 3, 2017: Respiratory Research
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