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https://www.readbyqxmd.com/read/28719220/egfr-targeted-cationic-polymeric-mixed-micelles-for-co-delivery-of-gemcitabine-and-mir-205-for-treating-advanced-pancreatic-cancer
#1
Goutam Mondal, Saud Almawash, Amit Kumar Chaudhary, Ram I Mahato
Gemcitabine (GEM), a first-line chemotherapy for pancreatic cancer undergoes rapid metabolism and develops chemoresistance after repeated administration. We previously demonstrated that the combination of GEM and miR-205 provides an effective therapeutic strategy to sensitize GEM-resistant pancreatic cancer cells. Since epidermal growth factor receptor (EGFR) is overexpressed in pancreatic cancer cells, in this study, we aimed to deliver mixed micelles containing GEM and miR-205 decorated with EGFR-targeting cetuximab (C225) monoclonal antibody for targeted therapy...
July 18, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28715505/the-clinical-and-immunological-performance-of-28-days-survival-model-of-cecal-ligation-and-puncture-in-humanized-mice
#2
Krzysztof Laudanski, Natalia Lapko, Mateusz Zawadka, Benjamin X Zhou, Gwenn Danet-Desnoyers, George S Worthen
Sepsis triggers a coordinated and thorough immune system response with long-term unfavorable sequelae after the initial insult. Long-term recovery from sepsis has garnered increasing attention recently, but a lack of suitable animal models impairs progress in this area. Our study, therefore, aimed to address the performance of the immune system in a survivable model of sepsis (cecal ligation and sepsis; CLP) for up to 28 d after the initial injury in humanized mice. Our model mimics human sepsis with weight loss and post-sepsis hypothermia...
2017: PloS One
https://www.readbyqxmd.com/read/28714508/gold-glyconanoparticles-coupled-to-listeriolysin-o-91-99-peptide-serve-as-adjuvant-therapy-against-melanoma
#3
R Calderon-Gonzalez, H Terán-Navarro, I García, M Marradi, D Salcines-Cuevas, S Yañez-Diaz, A Solis-Angulo, E Frande-Cabanes, M C Fariñas, A Garcia-Castaño, J Gomez-Roman, S Penades, F Rivera, J Freire, C Álvarez-Domínguez
Dendritic cell-based (DC-based) vaccines are promising immunotherapies for cancer. However, several factors, such as the lack of efficient targeted delivery and the sources and types of DCs, have limited the efficacy of DCs and their clinical potential. We propose an alternative nanotechnology-based vaccine platform with antibacterial prophylactic abilities that uses gold glyconanoparticles coupled to listeriolysin O 91-99 peptide (GNP-LLO91-99), which acts as a novel adjuvant for cancer therapy. GNP-LLO91-99, when used to vaccinate mice, exhibited dual antitumour activities, namely, the inhibition of tumour migration and growth and adjuvant activity for recruiting and activating DCs, including those from melanoma patients...
July 17, 2017: Nanoscale
https://www.readbyqxmd.com/read/28713366/intratumoral-lentivector-mediated-tgf-%C3%AE-1-gene-downregulation-as-a-potent-strategy-for-enhancing-the-antitumor-effect-of-therapy-composed-of-cyclophosphamide-and-dendritic-cells
#4
Joanna Rossowska, Natalia Anger, Agnieszka Szczygieł, Jagoda Mierzejewska, Elżbieta Pajtasz-Piasecka
Vaccination with dendritic cells (DCs) stimulated with tumor antigens can induce specific cellular immune response that recognizes a high spectrum of tumor antigens. However, the ability of cancer cells to produce immunosuppressive factors drastically decreases the antitumor activity of DCs. The main purpose of the study was to improve the effectiveness of DC-based immunotherapy or chemoimmunotherapy composed of cyclophosphamide (CY) and DCs by application of lentivectors (LVs)-encoding short hairpin RNA specific for TGF-β1 (shTGFβ1 LVs)...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28713311/validation-of-spanish-language-evaluation-instruments-for-body-dysmorphic-disorder-and-the-dysmorphic-concern-construct
#5
Cristina Senín-Calderón, María Valdés-Díaz, Ma M Benítez-Hernández, Ma C Núñez-Gaitán, Salvador Perona-Garcelán, Rafael Martínez-Cervantes, Juan F Rodríguez-Testal
Dysmorphic concern (DC) refers to excessive preoccupation with a slight or imagined defect in physical appearance with social avoidance and behavior directed at controlling the defect in appearance. This study attempted to adapt the factor structure of two instruments that cover the DC construct, the Dysmorphic Concern Questionnaire (DCQ) and the Body Dysmorphic Disorder Examination Self-Report (BDDE-SR), to Spanish and establish their psychometric properties. A total of 920 subjects (62.7% women, Mage = 32...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28713268/sitagliptin-an-anti-diabetic-drug-suppresses-estrogen-deficiency-induced-osteoporosisin-vivo-and-inhibits-rankl-induced-osteoclast-formation-and-bone-resorption-in-vitro
#6
Chuandong Wang, Fei Xiao, Xinhua Qu, Zanjing Zhai, Guoli Hu, Xiaodong Chen, Xiaoling Zhang
Postmenopausal osteoporosis is a disease characterized by excessive osteoclastic bone resorption. Some anti-diabetic drugs were demonstrated for anti-osteoclastic bone-loss effects. The present study investigated the skeletal effects of chronic administration of sitagliptin, a dipeptidyl peptidase IV (DPP IV) inhibitor that is increasingly used for type 2 diabetes treatments, in an estrogen deficiency-induced osteoporosis and elucidated the associated mechanisms. This study indicated that sitagliptin effectively prevented ovariectomy-induced bone loss and reduced osteoclast numbers in vivo...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28706510/natural-killer-cell-functions-during-the-innate-immune-response-to-pathogenic-streptococci
#7
Paul Lemire, Tristan Galbas, Jacques Thibodeau, Mariela Segura
Dendritic cells (DCs) and NK cells play a crucial role in the first phase of host defense against infections. Group B Streptococcus (GBS) and Streptococcus suis are encapsulated streptococci causing severe systemic inflammation, leading to septicemia and meningitis. Yet, the involvement of NK cells in the innate immune response to encapsulated bacterial infection is poorly characterized. Here, it was observed that these two streptococcal species rapidly induce the release of IFN-γ and that NK cells are the major cell type responsible for this production during the acute phase of the infection...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28706421/gastric-cancer-derived-heat-shock-protein-gp96-peptide-complex-enhances-dendritic-cell-activation
#8
Wen-Wen Lu, Hong Zhang, You-Ming Li, Feng Ji
AIM: To investigate the role of heat shock protein (HSP)-glycoprotein (gp)96 in dendritic cells (DCs) and lymphocytes induction in gastric cancer (GC). METHODS: Human GC cell lines KATOIII, MKN-28 and SGC-7901 were infected with adenovirus gp96 at a multiplicity of infection of 100. gp96-GC antigen peptide complexes were purified. MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) assay, lactate dehydrogenase (LDH) release assay and enzyme-linked immunosorbent assay were used to determine allo-reactive T cell stimulation, natural killer (NK) cell activity and expression of cytokines (such as interleukin (IL)-10, IL-12, interferon (IFN)-γ and tumor necrosis factor (TNF)-α), respectively...
June 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28701702/the-influence-of-postharvest-uv-c-treatment-on-anthocyanin-biosynthesis-in-fresh-cut-red-cabbage
#9
Jie Wu, Wen Liu, Li Yuan, Wen-Qiang Guan, Charles S Brennan, Yang-Yong Zhang, Jie Zhang, Zhi-Dong Wang
Red cabbage (Brassica oleracea L. var. capitata f. rubra DC.) is a fresh edible vegetable consumed globally that contains high levels of antioxidant compounds including anthocyanins. In this study, fresh-cut red cabbage was treated with different Ultraviolet-C (UV-C) dosages. Fifteen cyanidin derivatives were observed in UV-C treated fresh-cut red cabbage; four of these were anthocyanins absent in control samples. The optimum dose of UV-C for enhancing total anthocyanin content in fresh-cut red cabbage was 3...
July 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28696399/dendritic-cells-and-their-role-in-allergy-uptake-proteolytic-processing-and-presentation-of-allergens
#10
REVIEW
Piotr Humeniuk, Pawel Dubiela, Karin Hoffmann-Sommergruber
Dendritic cells (DCs) are the most important antigen presenting cells to activate naïve T cells, which results in the case of Type 1 allergies in a Type 2 helper T cell (Th2)-driven specific immune response towards allergens. So far, a number of different subsets of specialized DCs in different organs have been identified. In the recent past methods to study the interaction of DCs with allergenic proteins, their different uptake and processing mechanisms followed by the presentation to T cells were developed...
July 11, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28692190/dupuytren-s-contracture-and-handwork-a-case-control-study
#11
Alfred Haines, Carolyn Levis, Charles H Goldsmith, Manraj Kaur, Eric Duku, Richard Wells, Stephen D Walter, Cheryl Rook, Susan Stock, Gary Liss, Jessica Murphy, Achilleas Thoma
OBJECTIVE: The objective of this study was to examine the association between Dupuytren's contracture (DC), repetitive handwork (RHW), heavy handwork (HHW), and/or vibration exposure. METHODS: Frequency and intensity of the three types of handwork were collected and compared between DC patients and controls. Hours of work were weighted by average "frequency," for RHW, and average "intensity," for HHW and use of vibrating tool. Logistic regression was used to evaluate risk of developing DC associated with the above-mentioned factors...
August 2017: American Journal of Industrial Medicine
https://www.readbyqxmd.com/read/28690613/relb-steady-state-migratory-dendritic-cells-control-the-peripheral-pool-of-the-natural-foxp3-regulatory-t-cells
#12
Anja Döhler, Theresa Schneider, Ina Eckert, Eliana Ribechini, Nico Andreas, Marc Riemann, Boris Reizis, Falk Weih, Manfred B Lutz
Thymus-derived natural Foxp3(+) CD4(+) regulatory T cells (nTregs) play a key role in maintaining immune tolerance and preventing autoimmune disease. Several studies indicate that dendritic cells (DCs) are critically involved in the maintenance and proliferation of nTregs. However, the mechanisms how DCs manage to keep the peripheral pool at constant levels remain poorly understood. Here, we describe that the NF-κB/Rel family transcription factor RelB controls the frequencies of steady-state migratory DCs (ssmDCs) in peripheral lymph nodes and their numbers control peripheral nTreg homeostasis...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28689708/the-growing-role-of-biologics-and-biosimilars-in-the-united-states-perspectives-from-the-apha-biologics-and-biosimilars-stakeholder-conference
#13
Judy Crespi-Lofton, Jann B Skelton
OBJECTIVES: The American Pharmacists Association (APhA) convened the Biologics and Biosimilars Stakeholder Conference on November 30, 2016, in Washington DC. The objectives of the Conference were to determine the key issues and challenges within the marketplace for biologics, follow-on biologics (FOBs), and biosimilars, identify potential roles and responsibilities of pharmacists regarding biologic and biosimilar medications, and identify actions or activities that pharmacists may take to optimize the safe and cost-effective use of biologics and biosimilars...
July 6, 2017: Journal of the American Pharmacists Association: JAPhA
https://www.readbyqxmd.com/read/28688767/the-activation-of-b-cells-enhances-dc-sign-expression-and-promotes-susceptibility-of-b-cells-to-hpai-h5n1-infection
#14
Prasit Na-Ek, Jutarat Thewsoongnoen, Maytawan Thanunchai, Suwimon Wiboon-Ut, Noppadol Sa-Ard-Iam, Rangsini Mahanonda, Arunee Thitithanyanont
The interplay between highly pathogenic avian influenza (HPAI) H5N1 virus and immune cells has been extensively studied for years, as host immune components are thought to play significant roles in promoting the systemic spread of the virus and in the induction of cytokine storm. Previous studies suggested that the interaction of B cells and monocytes could promote HPAI H5N1 infection by enhancing avian influenza virus receptor expression. In this study, we further investigate the relationship between the HPAI H5N1 virus, activated B cells, and DC-SIGN expression...
July 5, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28687661/a-systems-vaccinology-approach-reveals-temporal-transcriptomic-changes-of-immune-responses-to-the-yellow-fever-17d-vaccine
#15
Jue Hou, Shuhui Wang, Manxue Jia, Dan Li, Ying Liu, Zhengpeng Li, Hong Zhu, Huifang Xu, Meiping Sun, Li Lu, Zhinan Zhou, Hong Peng, Qichen Zhang, Shihong Fu, Guodong Liang, Lena Yao, Xuesong Yu, Lindsay N Carpp, Yunda Huang, Julie McElrath, Steve Self, Yiming Shao
In this study, we used a systems vaccinology approach to identify temporal changes in immune response signatures to the yellow fever (YF)-17D vaccine, with the aim of comprehensively characterizing immune responses associated with protective immunity. We conducted a cohort study in which 21 healthy subjects in China were administered one dose of the YF-17D vaccine; PBMCs were collected at 0 h and then at 4 h and days 1, 2, 3, 5, 7, 14, 28, 84, and 168 postvaccination, and analyzed by transcriptional profiling and immunological assays...
July 7, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28684103/late-hepatitis-b-and-c-diagnosis-in-relation-to-disease-decompensation-and-hepatocellular-carcinoma-development
#16
Hasina Samji, Amanda Yu, Margot Kuo, Maryam Alavi, Ryan Woods, Maria Alvarez, Gregory J Dore, Mark Tyndall, Mel Krajden, Naveed Z Janjua
BACKGROUND AND AIMS: We measured the timing of HBV and HCV diagnoses relative to detection of decompensated cirrhosis (DC) and hepatocellular carcinoma (HCC) as an indicator of late hepatitis diagnosis. METHODS: HBV and HCV diagnoses were defined relative to the diagnosis of DC or HCC such that HBV/HCV diagnoses within two years prior, at the time of or after HCC or DC diagnosis were considered late. We performed multivariable logistic regression to assess factors associated with late HBV/HCV diagnoses among those with DC or HCC...
July 3, 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/28683553/exploiting-particle-mutual-interactions-to-enable-challenging-dielectrophoretic-processes
#17
Mario Alberto Saucedo-Espinosa, Blanca H Lapizco-Encinas
Dielectrophoresis (DEP) is the motion of particles under the influence of a non-uniform electric field. In insulator-based dielectrophoresis (iDEP), the required non-uniform electric fields are generated with insulating structures embedded in a microchannel. These structures distort the electric field distribution when an electric potential is applied. This contribution presents an experimental characterization of the electrokinetic (EK) and DEP velocities of a set of target particles, under DC potentials, when additional innocuous particles are used as fillers...
July 7, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28680376/dendritic-cell-dysfunction-in-patients-with-end-stage-renal-disease
#18
REVIEW
Ji Ung Kim, Miyeon Kim, Sinae Kim, Tam Thanh Nguyen, Eunhye Kim, Siyoung Lee, Soohyun Kim, Hyunwoo Kim
End-stage renal disease (ESRD) with immune disorder involves complex interactions between the innate and adaptive immune responses. ESRD is associated with various alterations in immune function such as a reduction in polymorphonuclear leukocyte bactericidal activity, a suppression of lymphocyte proliferative response to stimuli, and a malfunction of cell-mediated immunity at the molecular level. ESRD also increases patients' propensity for infections and malignancies as well as causing a diminished response to vaccination...
June 2017: Immune Network
https://www.readbyqxmd.com/read/28676223/prevalence-of-peyronie-s-disease-like-symptoms-in-men-presenting-with-dupuytren-contractures
#19
Alan W Shindel, Genevieve Sweet, William Thieu, Blythe Durbin-Johnson, Jennifer Rothschild, Robert Szabo
INTRODUCTION: Peyronie's disease (PD) and Dupuytren contractures (DC) are often comorbid and are believed to have a similar underlying pathophysiologic mechanism. AIM: To investigate the prevalence of PD-like symptoms (PDLS) in men with DC. METHODS: From October 2013 to December 2016, men who were seen and evaluated for DC were offered the opportunity to participate in an anonymous survey. The survey assessed several basic demographic and sexual health factors and included items from the International Index of Erectile Function and the Erection Hardness Scale...
July 1, 2017: Sexual Medicine
https://www.readbyqxmd.com/read/28674498/nimotuzumab-induces-nk-cell-activation-cytotoxicity-dendritic-cell-maturation-and-expansion-of-egfr-specific-t-cells-in-head-and-neck-cancer-patients
#20
Zaima Mazorra, Anabel Lavastida, Fernando Concha-Benavente, Anet Valdés, Raghvendra M Srivastava, Tatiana M García-Bates, Esperanza Hechavarría, Zuyen González, Amnely González, Martha Lugiollo, Iván Cuevas, Carlos Frómeta, Braulio F Mestre, Maria C Barroso, Tania Crombet, Robert L Ferris
Survival benefit and long-term duration of clinical response have been seen using the epidermal growth factor receptor (EGFR)-targeted monoclonal antibody (mAb) nimotuzumab. Blocking EGFR signaling may not be the only mechanism of action underlying its efficacy. As an IgG1 isotype mAb, nimotuzumab's capacity of killing tumor cells by antibody dependent cellular cytotoxicity (ADCC) and to induce an immune response in cancer patients have not been studied. ADCC-induced by nimotuzumab was determined using a (51)Cr release assay...
2017: Frontiers in Pharmacology
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