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Dendritic Cell Therapy

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https://www.readbyqxmd.com/read/28431327/dendrimer-conjugated-iron-oxide-nanoparticles-as-stimuli-responsive-drug-carriers-for-thermally-activated-chemotherapy-of-cancer
#1
Saumya Nigam, Dhirendra Bahadur
In recent years, functional nanomaterials have found an appreciable place in the understanding and treatment of cancer. This work demonstrates the fabrication and characterization of a new class of cationic, biocompatible, peptide dendrimers, which were then used for stabilizing and functionalizing magnetite nanoparticles for combinatorial therapy of cancer. The synthesized peptide dendrimers have an edge over the widely used PAMAM dendrimers due to better biocompatibility and negligible cytotoxicity of their degradation products...
April 13, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28428103/characteristics-and-clinical-implications-of-reactive-germinal-centers-in-the-bone-marrow
#2
Rose Lou Marie C Agbay, L Jeffrey Medeiros, Joseph D Khoury, Alireza Salem, Carlos E Bueso-Ramos, Sanam Loghavi
Reactive germinal centers (GCs) in the bone marrow (BM) have been described in patients with autoimmune disorders, infections, malignancies and following certain drug therapies, or as an isolated finding without obvious underlying disease. In this study, we describe the clinical conditions in which reactive GCs occur in BM samples, and their topography and accompanying laboratory and ancillary findings in the setting of a cancer center. We identified 32 BM specimens with reactive GCs with an estimated frequency of <0...
April 17, 2017: Human Pathology
https://www.readbyqxmd.com/read/28425263/combination-therapy-with-dendritic-cell-based-vaccine-and-anti-cd69-antibody-enhances-antitumor-efficacy-in-renal-cell-carcinoma-bearing-mice
#3
Si-Ming Wei, Hang-Li Pan, Li Wang, Guo-Li Yin, Kai Zhong, Ya Zhou, Shu-Jiao Yang, Zhao-Liang Xin
BACKGROUND/AIM: Dendritic cell-based vaccine therapy for renal cell carcinoma is effective but requires improvement. Here we explored whether combination therapy with dendritic cell-based vaccine and anti-CD69 antibody can enhance antitumor efficacy in renal cell carcinoma-bearing mice. MATERIALS AND METHODS: Balb/c mice were challenged subcutaneously with murine renal cell carcinoma (Renca) cells. On day 3 after tumor cell inoculation, tumor-bearing mice either were left untreated or were treated with Renca tumor lysate-pulsed dendritic cells (i...
April 18, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28421385/in-vitro-and-in-vivo-anti-tumor-effects-of-selected-platinum-iv-and-dinuclear-platinum-ii-complexes-against-lung-cancer-cells
#4
Milos Arsenijevic, Marija Milovanovic, Snezana Jovanovic, Natalija Arsenijevic, Bojana Simovic Markovic, Marina Gazdic, Vladislav Volarevic
In the present study, cytotoxic effects of cisplatin, the most usually used chemotherapeutic agent, were compared with new designed platinum(IV) ([PtCl4(en)] (en = ethylenediamine) and [PtCl4(dach)]) (dach = (±)-trans-1,2-diaminocyclohexane) and platinum(II) complexes ([{trans-Pt(NH3)2Cl}2(μ-pyrazine)](ClO4)2 (Pt1), [{trans-Pt(NH3)2Cl}2(μ-4,4'-bipyridyl)](ClO4)2DMF(Pt2),[{trans-Pt(NH3)2Cl}2(μ-1,2-bis(4pyridyl)ethane)](ClO4)2 (Pt3)), in vitro and in vivo against human and murine lung cancer cells, to determine anti-tumor potential of newly synthesized platinum-based drugs in the therapy of lung cancer...
April 18, 2017: Journal of Biological Inorganic Chemistry: JBIC
https://www.readbyqxmd.com/read/28420805/immunotherapeutic-approaches-for-hepatocellular-carcinoma
#5
Vito Longo, Antonio Gnoni, Andrea Casadei Gardini, Salvatore Pisconti, Antonella Licchetta, Mario Scartozzi, Riccardo Memeo, Vincenzo Ostilio Palmieri, Giuseppe Aprile, Daniele Santini, Patrizia Nardulli, Nicola Silvestris, Oronzo Brunetti
Hepatocellular carcinoma (HCC) is a cancer with a high mortality rate due to the fact that the diagnosis usually occurs at anadvanced stage. Even in case of curative surgical treatment, recurrence is common. Sorafenib and regorafenib are the only therapeutic agents that have been demonstrated to be effective in advanced HCC, thus novel curative approaches are urgently needed. Recent studies focus on the role of immune system in HCC. In fact, the unique immune response in the liver favors tolerance, which can represent a real challenge for conventional immunotherapy in these patients...
February 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28417012/coordinating-antigen-cytosolic-delivery-and-danger-signaling-to-program-potent-cross-priming-by-micelle-based-nanovaccine
#6
Zhida Liu, Chang Zhou, Yan Qin, Zihao Wang, Luyao Wang, Xiuli Wei, Yinjian Zhou, Qicheng Li, Hang Zhou, Wenjun Wang, Yang-Xin Fu, Mingzhao Zhu, Wei Liang
Although re-activating cytotoxic T-cell (CTLs) response inside tumor tissues by checkpoint blockade has demonstrated great success in tumor immunotherapy, active induction of efficient endogenous CTL response by therapeutic vaccines has been largely hampered by inefficient cytosolic delivery of antigens and coordinated activation of dendritic cells (DCs) in lymph nodes. Here we show that polyethylene glycol-phosphatidylethanolamine (PEG-PE) micelles transform soluble peptides into α-helix to enable their efficient cytosolic delivery...
2017: Cell Discovery
https://www.readbyqxmd.com/read/28415388/targeted-delivery-of-docetaxel-via-pi-pi-stacking-stabilized-dendritic-polymeric-micelles-for-enhanced-therapy-of-liver-cancer
#7
Xiaolong Tang, Shuping Zhou, Xinrong Tao, Jian Wang, Fangyu Wang, Yong Liang
Delivery of taxane-based chemotherapeutics including Docetaxel (DTX) by conventional polymeric micelles still suffers from insufficient stability and rapid premature release during the circulation, which limits their targeting and anticancer efficiency. To conquer these challenges, we developed a novel DTX-loaded Pi-Pi stacking-stabilized dendritic polymeric micelle for targeted therapy of liver cancer. This dendritic polymeric micelle, referred to DPM-DTX-cRGD, was self-assembled from DTX and biodegradable dendritic block copolymers Poly(amidoamine)-poly(γ-benzyl-l-Glutamate)-b-polyethylene glycol-cRGD (PAM-PBLG-b-PEG-cRGD)...
June 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28414197/engineering-of-a-self-adjuvanted-itep-delivered-ctl-vaccine
#8
Shuyun Dong, Tiefeng Xu, Peng Wang, Peng Zhao, Mingnan Chen
Cytotoxic T lymphocyte (CTL) epitope peptide-based vaccines are widely used in cancer and infectious disease therapy. We previously generated an immune-tolerant elastin-like polypeptides (iTEPs)-based carrier to deliver a peptide CTL vaccine and enhance the efficiency of the vaccine. To further optimize the vaccine carrier, we intended to potentiate its function by designing an iTEP-based carrier that was able to deliver adjuvant and a vaccine epitope as one molecule. Thus, we fused a 9-mer H100, a peptide derived from the high-mobility group box 1 protein (HMGB1) that could induce activation of dendritic cells (DCs), with an iTEP polymer to generate a new iTEP polymer named H100-iTEP...
April 17, 2017: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/28409282/motor-neuron-vulnerability-and-resistance-in-amyotrophic-lateral-sclerosis
#9
REVIEW
Jik Nijssen, Laura H Comley, Eva Hedlund
In the fatal disease-amyotrophic lateral sclerosis (ALS)-upper (corticospinal) motor neurons (MNs) and lower somatic MNs, which innervate voluntary muscles, degenerate. Importantly, certain lower MN subgroups are relatively resistant to degeneration, even though pathogenic proteins are typically ubiquitously expressed. Ocular MNs (OMNs), including the oculomotor, trochlear and abducens nuclei (CNIII, IV and VI), which regulate eye movement, persist throughout the disease. Consequently, eye-tracking devices are used to enable paralysed ALS patients (who can no longer speak) to communicate...
April 13, 2017: Acta Neuropathologica
https://www.readbyqxmd.com/read/28408841/cytokine-induced-killer-cells-dendritic-cells-and-cytokine-induced-killer-cells-immunotherapy-for-the-treatment-of-esophageal-cancer-in-china-a-meta-analysis
#10
Yan Liu, Ying Mu, Anqi Zhang, Shaoda Ren, Weihua Wang, Jiaping Xie, Yingxin Zhang, Changhui Zhou
BACKGROUND: Immunotherapy based on cytokine-induced killer cells or combination of dendritic cells and cytokine-induced killer cells (CIK/DC-CIK) showed promising clinical outcomes for treating esophageal cancer (EC). However, the clinical benefit varies among previous studies. Therefore, it is necessary to systematically evaluate the curative efficacy and safety of CIK/DC-CIK immunotherapy as an adjuvant therapy for conventional therapeutic strategies in the treatment of EC. MATERIALS AND METHODS: Clinical trials published before October 2016 and reporting CIK/DC-CIK immunotherapy treatment responses or safety for EC were searched in Cochrane Library, EMBASE, PubMed, Wanfang and China National Knowledge Internet databases...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28405517/hematopoietic-stem-cell-derived-myeloid-and-plasmacytoid-dc-based-vaccines-are-highly-potent-inducers-of-tumor-reactive-t-cell-and-nk-cell-responses-ex-vivo
#11
Soley Thordardottir, Nicolaas Schaap, Elja Louer, Michel G D Kester, J H Frederik Falkenburg, Joop Jansen, Timothy R D Radstake, Willemijn Hobo, Harry Dolstra
Because of the potent graft-versus-tumor (GVT) effect, allogeneic stem cell transplantation (alloSCT) can be a curative therapy for hematological malignancies. However, relapse remains the most frequent cause of treatment failure, illustrating the necessity for development of adjuvant post-transplant therapies to boost GVT immunity. Dendritic cell (DC) vaccination is a promising strategy in this respect, in particular, where distinct biologic functions of naturally occurring DC subsets, i.e. myeloid DCs (mDCs) and plasmacytoid DCs (pDCs), are harnessed...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28404886/cytokine-induced-killer-cells-dendritic-cells-cytokine-induced-killer-cells-immunotherapy-combined-with-chemotherapy-for-treatment-of-colorectal-cancer-in-china-a-meta-analysis-of-29-trials-involving-2-610-patients
#12
Lei Zhang, Ying Mu, Anqi Zhang, Jiaping Xie, Shuangfeng Chen, Fang Xu, Weihua Wang, Yingxin Zhang, Shaoda Ren, Changhui Zhou
PURPOSE: To systematically evaluate the efficacy and safety of Cytokine-induced killer cells/dendritic cells-cytokine induced killer cells (CIK/DC-CIK) immunotherapy in treating advanced colorectal cancer (CRC) patients. RESULTS: 29 trials including 2,610 CRC patients were evolved. Compared with chemotherapy alone, the combination of chemotherapy with CIK/DC-CIK immunotherapy significantly prolonged the overall survival rate (OS) and disease-free survival rate (DFS) (1-5 year OS, P < 0...
March 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28401937/progesterone-based-compounds-affect-immune-responses-and-susceptibility-to-infections-at-diverse-mucosal-sites
#13
REVIEW
Olivia J Hall, Sabra L Klein
Over 100 million women worldwide are currently on progesterone-based contraceptives to improve their health outcomes through reduced maternal mortality and family planning. In addition to their role in reproduction, progesterone-based compounds modulate immune responses throughout the body, particularly at mucosal sites. By binding to receptors located in immune cells, including natural killer cells, macrophages, dendritic cells, and T cells, as well in non-immune cells, such as epithelial and endothelial cells, progesterone-based compounds alter cellular signaling and activity to affect the outcome of infections at diverse mucosal sites, including the genital, gastrointestinal, and respiratory tracts...
April 12, 2017: Mucosal Immunology
https://www.readbyqxmd.com/read/28391291/rejuvenation-of-mucosal-immunosenescence-by-adipose-tissue-derived-mesenchymal-stem-cells
#14
Akitoshi Tsuruhara, Kazuyoshi Aso, Daisuke Tokuhara, Junichiro Ohori, Masaki Kawabata, Yuichi Kurono, Jerry R McGhee, Kohtaro Fujihashi
Age-associated alterations in the mucosal immune system are generally termed mucosal immunosenescence. The major change seen in the aged mucosa is a failure to elicit an antigen-specific secretory IgA (SIgA) antibody response, which is a central player for host defense from various pathogens at mucosal surfaces. In this regard, it would be a first priority to compensate for mucosal dysregulation in the elderly in order to maintain their health in aging. We have successfully established antigen-specific SIgA antibody responses in aged (2 years old) mice, which provide protective immunity from Streptococcus pneumoniae and influenza virus infections, by using a new adjuvant system consisting of a plasmid encoding Flt3 ligand (pFL) and CpG ODN...
January 1, 2017: International Immunology
https://www.readbyqxmd.com/read/28390860/basophil-derived-interleukin-4-promotes-epicutaneous-antigen-sensitization-concomitant-with-the-development-of-food-allergy
#15
Maryam Hussain, Loïc Borcard, Kevin P Walsh, Maria Pena Rodriguez, Christoph Mueller, Brian S Kim, Masato Kubo, David Artis, Mario Noti
BACKGROUND: Exaggerated TSLP production and infiltration of basophils are associated with the pathogenesis of atopic dermatitis (AD), a recognized risk factor for the development of food allergies. While TSLP and basophils have been implicated to promote food-induced allergic disorders in response to epicutaneous sensitization, the mechanisms by which TSLP-elicited basophils guide the progression of allergic inflammation in the skin to distant mucosal sites such as the gastrointestinal tract are poorly understood...
April 5, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28389620/exploiting-tumor-associated-dendritic-cell-heterogeneity-for-novel-cancer-therapies
#16
REVIEW
Jiri Keirsse, Helena Van Damme, Jo A Van Ginderachter, Damya Laoui
Dendritic cells (DCs) are specialized APCs present in all tissues, including tumors. They play a major role in orchestrating immune responses and were shown to occur in various functional states in tumors. In this respect, immunogenic tumor-associated DCs (TADCs) are required to initiate and sustain T cell-dependent anti-cancer immunity, whereas regulatory TADCs harbor robust immunosuppressive potential and accelerate malignant growth. Importantly, the heterogeneity of the DC compartment in tumors has been dissected recently in murine and human cancers and was shown to consist of developmentally distinct subsets, including conventional DC (cDC)1, cDC2, and monocyte-derived DCs (Mo-DCs)...
April 7, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/28388587/micro-rna-19a-interferes-with-il-10-expression-in-peripheral-dendritic-cells-of-patients-with-nasal-polyposis
#17
Xiang-Qian Luo, Jian-Bo Shao, Rui-Di Xie, Lu Zeng, Xiao-Xi Li, Shu-Qi Qiu, Xiao-Rui Geng, Li-Tao Yang, Lin-Jing Li, Da-Bo Liu, Zhi-Gang Liu, Ping-Chang Yang
The pathogenesis of nasal polyp is to be further investigated. Micro RNA (miR) plays a role in the development of allergic inflammation. Interleukin (IL)-10-producing dendritic cells (DC) have immune tolerogenic properties. This study test a hypothesis that miR-17-92 cluster is associated with suppressing IL-10 in peripheral DC. In this study, peripheral blood samples were obtained from 26 patients with nasal polyp. The CD11c DCs were isolated from the blood samples and analyzed for the expression of IL-10...
March 24, 2017: Oncotarget
https://www.readbyqxmd.com/read/28382773/the-yin-and-yang-of-regulatory-t-cells-in-infectious-diseases-and-avenues-to-target-them
#18
REVIEW
Emmanuel Stephen-Victor, Iris Bosschem, Freddy Haesebrouck, Jagadeesh Bayry
CD4(+) CD25(+) FoxP3(+) regulatory T cells (Tregs) are key players for maintaining immune tolerance. Tregs are critical for reducing the inflammation-mediated tissue damage following infection. However, Tregs also suppress protective immune responses to pathogens (including virus, bacteria, parasites and fungi) and vaccines, and enhance pathogen persistence by inhibiting the activation and functions of both innate and adaptive immune cells such as dendritic cells, macrophages, T and B lymphocytes, and by promoting immunosuppressive environment...
April 6, 2017: Cellular Microbiology
https://www.readbyqxmd.com/read/28382648/characteristics-management-and-outcomes-of-patients-with-follicular-dendritic-cell-sarcoma
#19
Preetesh Jain, Sarah A Milgrom, Keyur P Patel, Loretta Nastoupil, Luis Fayad, Michael Wang, Chelsea C Pinnix, Bouthaina S Dabaja, Grace L Smith, Jun Yu, Shimin Hu, Carlos E Bueso Ramos, Rashmi Kanagal-Shamanna, L Jeffrey Medeiros, Yasuhiro Oki, Nathan Fowler
Dendritic cell sarcomas are rare tumours of antigen presenting cells. Data regarding their biology, management and outcomes are sparse. We analysed 66 patients with follicular dendritic cell sarcoma (FDCS). Six patients also had Castleman disease, 9 had another malignancy and 13 had an autoimmune disease. Fifty-four per cent of patients presented with localized disease and 46% with systemic involvement. The median progression-free (PFS) and overall survival (OS) following frontline therapy was 21 and 50 months, respectively...
April 6, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28377772/treatment-of-pediatric-acute-graft-versus-host-disease-lessons-from-primary-immunodeficiency
#20
REVIEW
Aisling M Flinn, Andrew R Gennery
Allogeneic hematopoietic stem cell transplant (HSCT) is used to treat increasing numbers of malignant and non-malignant disorders. Despite significant advances in improved human leukocyte antigens-typing techniques, less toxic conditioning regimens and better supportive care, resulting in improved clinical outcomes, acute graft-versus-host disease (aGvHD) continues to be a major obstacle and, although it principally involves the skin, gastrointestinal tract, and liver, the thymus is also a primary target. An important aim following HSCT is to achieve complete and durable immunoreconstitution with a diverse T-cell receptor (TCR) repertoire to recognize a broad range of pathogens providing adequate long-term adaptive T-lymphocyte immunity, essential to reduce the risk of infection, disease relapse, and secondary malignancies...
2017: Frontiers in Immunology
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