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Interleukin-2

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https://www.readbyqxmd.com/read/29334370/scaffolds-that-mimic-antigen-presenting-cells-enable-ex-vivo-expansion-of-primary-t-cells
#1
Alexander S Cheung, David K Y Zhang, Sandeep T Koshy, David J Mooney
Therapeutic ex vivo T-cell expansion is limited by low rates and T-cell products of limited functionality. Here we describe a system that mimics natural antigen-presenting cells (APCs) and consists of a fluid lipid bilayer supported by mesoporous silica micro-rods. The lipid bilayer presents membrane-bound cues for T-cell receptor stimulation and costimulation, while the micro-rods enable sustained release of soluble paracrine cues. Using anti-CD3, anti-CD28, and interleukin-2, we show that the APC-mimetic scaffolds (APC-ms) promote two- to tenfold greater polyclonal expansion of primary mouse and human T cells compared with commercial expansion beads (Dynabeads)...
January 15, 2018: Nature Biotechnology
https://www.readbyqxmd.com/read/29333035/the-activity-of-immunoglobulin-y-anti-mycobacterium-tuberculosis-on-proliferation-and-cytokine-expression-of-rat-peripheral-blood-mononuclear-cells
#2
Sri Agus Sudjarwo, Koerniasari Eraiko, Giftania Wardani Sudjarwo, Koerniasari
Objective: It has long been known that chickens, like mammals, are capable of producing antigen-specific immunoglobulin Y (IgY), which functions similar to IgG. The present study was performed to investigate the activity of IgY anti-Mycobacterium tuberculosis on proliferation, interleukin (IL)-2, and interferon (IFN)-γ expression of rat peripheral blood mononuclear cells (PBMCs). Materials and Methods: The activity of IgY anti-M. tuberculosis in different doses (25, 50, and 100 μg/ml) on rat PBMCs proliferation was determined by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide assay...
December 2017: Pharmacognosy Research
https://www.readbyqxmd.com/read/29328445/the-effects-of-interleukin-2-and-rad-p53-as-a-treatment-for-glioblastoma
#3
Hai-Bo Qiao, Jia Li, Lian-Jie Lv, Ben-Jin Nie, Peng Lu, Feng Xue, Zhi-Ming Zhang
Interleukin 2 (IL-2) is an anti-cancer cytokine that stimulates T cell propagation, triggering innate and adaptive immunity. IL-2 has been used for cancer therapy and has achieved curative effects. Recombinant adenovirus p53 injection (rAd‑p53) is a gene therapeutic agent that may improve the prognosis of patients with glioblastoma (GBM). In the present study, the effect of combined IL‑2 and rAd‑p53 treatment was studied. The ability of IL‑2 to stimulate immunoregulation and the ability of p53 to induce apoptosis for GBM was researched in the GBM tumor model...
January 9, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29328392/targeting-bladder-cancer-using-activated-t%C3%A2-cells-armed-with-bispecific-antibodies
#4
Juan Ma, Jing Ge, Xin Xue, Weigang Xiu, Pan Ma, Ximing Sun, Man Zhang
In the present study, we aimed to investigate whether EGFR or HER2 may serve as a target for T cell-mediated immunotherapy against human bladder cancer. Expression of EGFR and HER2 was detected on the surface of bladder cancer cells, including Pumc-91 and T24 cells, and their chemotherapeutic drug-resistant counterparts. Activated T cells (ATCs) were generated from healthy PBMCs that were stimulated by the combination of anti-CD3 monoclonal antibody and anti‑CD28 monoclonal antibody in the presence of interleukin-2 for 14 days...
January 11, 2018: Oncology Reports
https://www.readbyqxmd.com/read/29327244/antibody-based-delivery-of-tumor-necrosis-factor-l19-tnf%C3%AE-and-interleukin-2-l19-il2-to-tumor-associated-blood-vessels-has-potent-immunological-and-anticancer-activity-in-the-syngeneic-j558l-balb-c-myeloma-model
#5
Hans D Menssen, Ulf Harnack, Ulrike Erben, Dario Neri, Burkhard Hirsch, Horst Dürkop
PURPOSE: To analyze the impact of TNFα or IL2 on human lymphocytes in vitro and the anti-tumor and immune-modifying effects of L19-IL2 and L19-TNFα on subcutaneously growing J558L myeloma in immunocompetent mice. METHODS: PBMCs from three healthy volunteers were incubated with IL2, TNFα, or with IL2 plus addition of TNFα (final 20 h). BALB/c J558L mice with subcutaneous tumors were treated with intravenous L19-TNFα plus L19-IL2, or controls. Tumor growth and intra- and peri-tumoral tissues were analyzed for micro-vessel density, necrosis, immune cell composition, and PD1 or PD-L1 expressing cells...
January 11, 2018: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/29327110/the-role-of-interleukin-2-all-trans-retinoic-acid-and-natural-killer-cells-surveillance-mechanisms-in-anti-gd2-antibody-therapy-in-neuroblastoma
#6
Rosa Nguyen, Jim Houston, Wing K Chan, David Finkelstein, Michael A Dyer
Although anti-disialoganglioside (GD2) antibodies are successfully used for neuroblastoma therapy, a third of patients with neuroblastoma experience treatment failure or serious toxicity. Various strategies have been employed in the clinic to improve antibody-dependent cell-mediated cytotoxicity (ADCC), such as the addition of interleukin (IL)-2 to enhance natural killer (NK) cell function, adoptive transfer of allogeneic NK cells to exploit immune surveillance, and retinoid-induced differentiation therapy...
January 11, 2018: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/29325640/selective-egf-receptor-inhibition-in%C3%A2-cd4-%C3%A2-t%C3%A2-cells-induces-anergy-and%C3%A2-limits%C3%A2-atherosclerosis
#7
Lynda Zeboudj, Mikael Maître, Lea Guyonnet, Ludivine Laurans, Jeremie Joffre, Jeremie Lemarie, Simon Bourcier, Wared Nour-Eldine, Coralie Guérin, Jonas Friard, Abdelilah Wakkach, Elizabeth Fabre, Alain Tedgui, Ziad Mallat, Pierre-Louis Tharaux, Hafid Ait-Oufella
BACKGROUND: Several epidermal growth factor receptor (EGFR) inhibitors have been successfully developed for the treatment of cancer, limiting tumor growth and metastasis. EGFR is also expressed by leukocytes, but little is known about its role in the modulation of the immune response. OBJECTIVES: The aim of this study was to determine whether EGFR expressed on CD4+ T cells is functional and to address the consequences of EGFR inhibition in atherosclerosis, a T cell-mediated vascular chronic inflammatory disease...
January 16, 2018: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/29315824/cytokine-secreting-microparticles-engineer-the-fate-and-the-effector-functions-of-t-cells
#8
Fatemeh S Majedi, Mohammad Mahdi Hasani-Sadrabadi, Yoko Kidani, Timothy J Thauland, Alireza Moshaverinia, Manish J Butte, Steven J Bensinger, Louis-S Bouchard
T-cell immunotherapy is a promising approach for cancer, infection, and autoimmune diseases. However, significant challenges hamper its therapeutic potential, including insufficient activation, delivery, and clonal expansion of T-cells into the tumor environment. To facilitate T-cell activation and differentiation in vitro, core-shell microparticles are developed for sustained delivery of cytokines. These particles are enriched by heparin to enable a steady release of interleukin-2 (IL-2), the major T-cell growth factor, over 10+ d...
January 8, 2018: Advanced Materials
https://www.readbyqxmd.com/read/29311759/comparison-of-a-microsphere-based-platform-with-a-multiplex-flow-cytometric-assay-for-determination-of-circulating-cytokines-in-the-mouse
#9
Alain Stricker-Krongrad, Catherine Shoemake, Miao Zhong, Jason Liu, Guy Bouchard
Background: Measuring expression profiles of inflammatory biomarkers is important in monitoring the polarization of immune responses; therefore, results should be independent of quantitation methods if they are to be accepted as validated clinical pathology biomarkers. To evaluate effects of differing quantitation methods, the seven major circulating Th1/Th2/Th17 cytokines interleukin 2 (IL-2), interferon γ (IFN-γ), tumor necrosis factor α (TNF-α), IL-4, IL-6, IL-10 and IL-17A were quantified in plasma of lipopolysaccharide (LPS)-treated mice with two different multiplex platforms...
2018: BMC Clinical Pathology
https://www.readbyqxmd.com/read/29306151/enhancement-of-immune-response-of-piglets-to-pcv-2-vaccine-by-porcine-il-2-and-fusion-il-4-6-gene-entrapped-in-chitosan-nanoparticles
#10
Yi Chen, Tingyu Song, Yong-Le Xiao, Xiaoping Wan, Luyi Yang, Jinghai Li, Guangzhi Zeng, Pengfei Fang, Ze-Zhou Wang, Rong Gao
In order to develop a novel effective immunomodulator to enhance pig resistance against post-weaning multi systemic wasting syndrome (PMWS), a recombinant plasmid co-expressing pig interleukin-2 (IL-2) and fusion interleukin-4/6 (IL-4/6) genes, designated VRIL4/6-2, was constructed and encapsulated in chitosan (CS) nanoparticles prepared by the ionotropic gelation method. Then 21-day old piglets were divided into two groups and intramuscularly injected respectively with VPIL4/6-2-CS and saline along with the porcine circovirus-2 (PCV-2) vaccine...
December 29, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/29305520/soluble-slamf6-receptor-induces-strong-cd8-t-cell-effector-function-and-improves-anti-melanoma-activity-in-vivo
#11
Galit Eisenberg, Roni Engelstein, Anat Geiger, Emma Hajaj, Sharon Merims, Shoshana Frankenburg, Ronny Uzana, Abraham Rutenberg, Arthur Machlenkin, Gabi Frei, Tamar Peretz, Michal Lotem
SLAMF6, a member of the SLAM (signaling lymphocyte activation molecules) family, is a homotypic-binding immune receptor expressed on NK, T, and B lymphocytes. Phosphorylation variance between T-cell subclones prompted us to explore its role in anti-melanoma immunity. Using a 203-amino acid sequence of the human SLAMF6 (seSLAMF6) ectodomain, we found that seSLAMF6 reduced activation-induced cell death and had an anti-apoptotic effect on tumor infiltrating lymphocytes. CD8+ T cells costimulated with seSLAMF6 secreted more interferon gamma and displayed augmented cytolytic activity...
January 5, 2018: Cancer Immunology Research
https://www.readbyqxmd.com/read/29301121/association-of-soluble-interleukin-2-receptor-and-c-reactive-protein-with-the-efficacy-of-bendamustine-salvage-treatment-for-indolent-lymphomas-and-mantle-cell-lymphoma
#12
Yukiko Kawaguchi, Tsuyoshi Nakamaki, Maasa Abe, Yuta Baba, So Murai, Megumi Watanuki, Nana Arai, Shun Fujiwara, Nobuyuki Kabasawa, Hiroyuki Tsukamoto, Yui Uto, Hirotsugu Ariizumi, Kouji Yanagisawa, Norimichi Hattori, Hiroshi Harada, Bungo Saito
Bendamustine has demonstrated favourable efficacy in relapsed or refractory indolent lymphoma and mantle cell lymphoma. We retrospectively evaluated the pre-treatment clinical and laboratory factors and their correlation with the clinical outcome of these lymphomas. We analysed 53 patients who had been treated with bendamustine alone (n = 6) or rituximab plus bendamustine (n = 47). The overall response rate was 81.1%, with a complete response (CR) rate of 39.6%. The CR rate was significantly low in patients who had elevated levels of soluble interleukin-2 receptor (p = 0...
January 5, 2018: Acta Haematologica
https://www.readbyqxmd.com/read/29299904/clinical-significance-of-serum-adipokines-according-to-body-mass-index-in-patients-with-clinically-localized-prostate-cancer-undergoing-radical-prostatectomy
#13
Minyong Kang, Seok Soo Byun, Sang Eun Lee, Sung Kyu Hong
PURPOSE: The aim of this study was to investigate the clinical significance of 7 circulating adipokines according to body mass index (BMI) in Korean men with localized prostate cancer (PCa) undergoing radical prostatectomy (RP). MATERIALS AND METHODS: Sixty-two of 65 prospectively enrolled patients with clinically localized PCa who underwent RP between 2015 and 2016 were evaluated. Patients were classified into 2 groups according to their BMI: non-obese (<25 kg/m²) and obese (≥25 kg/m²)...
January 2018: World Journal of Men's Health
https://www.readbyqxmd.com/read/29296904/soluble-interleukin-2-receptor-is-a-sensitive-diagnostic-test-in-adult-hlh
#14
Anna Hayden, Molly Lin, Sujin Park, Morris Pudek, Marion Schneider, Michael B Jordan, Andre Mattman, Luke Y C Chen
Serum soluble interleukin-2 receptor (sIL-2r) is an important disease marker in hemophagocytic lymphohistiocytosis (HLH), but there are no published data on its diagnostic value in adults. We conducted a single-center retrospective study of 78 consecutive adults who had sIL-2r measured for suspected HLH. Serum sIL-2r levels were measured by enzyme-linked immunosorbent assay (adult reference range, 241-846 U/mL). There were 38 patients with HLH and 40 with a non-HLH diagnosis (such as sepsis, liver disease, histiocyte disorders, autoimmune disease, leukemia, or lymphoma)...
December 12, 2017: Blood Advances
https://www.readbyqxmd.com/read/29296700/il-33-il-25-and-tslp-induce-a-distinct-phenotypic-and-activation-profile-in-human-type-2-innate-lymphoid-cells
#15
Ana Camelo, Guglielmo Rosignoli, Yoichiro Ohne, Ross A Stewart, Catherine Overed-Sayer, Matthew A Sleeman, Richard D May
Innate lymphoid cells (ILCs) represent a distinct branch of the lymphoid lineage composed of 3 major subpopulations: ILC1, ILC2, and ILC3. ILCs are mainly described as tissue-resident cells but can be detected at low levels in human blood. However, unlike mouse ILCs, there is still no consistent methodology to purify and culture these cells that enables in-depth analysis of their intrinsic biology. Here, we describe defined culture conditions for ILC2s, which allowed us to dissect the roles of interleukin 2 (IL-2), IL-25, IL-33, and thymic stromal lymphopoietin (TSLP) individually, or in combination, in modulating ILC2 phenotype and function...
April 11, 2017: Blood Advances
https://www.readbyqxmd.com/read/29289312/diffusion-of-cytokines-in-live-lymph-node-tissue-using-microfluidic-integrated-optical-imaging
#16
A E Ross, R R Pompano
Communication and drug efficacy in the immune system rely heavily on diffusion of proteins such as cytokines through the tissue matrix. Available methods to analyze diffusion in tissue require microinjection or saturating the tissue in protein, which may alter local transport properties due to damage or rapid cellular responses. Here, we developed a novel, user-friendly method - Microfluidic Integrated Optical Imaging (micro-IOI) - to quantify the effective diffusion coefficient of bioactive proteins in live tissue samples ex vivo...
February 13, 2018: Analytica Chimica Acta
https://www.readbyqxmd.com/read/29288086/autoimmune-hepatitis-association-with-single-nucleotide-polymorphism-of-interleukin-2-but-not-interferon-gamma
#17
Azizollah Yousefi, Elham Mahmoudi, Behnoud Baradaran Noveiry, Alireza Zare Bidoki, Maryam Sadr, Farzaneh Motamed, Mehri Najafi, Fatemeh Farahmand, Ahmad Khodadad, Gholam Hossein Fallahi, Nima Rezaei
BACKGROUND: Autoimmune hepatitis (AIH) is a chronic inflammation in hepatocellular tissues associated with circulating autoantibodies. Imbalance in T-cells population and dysregulation in several cytokine profiles has been implicated in pathogenesis of AIH. This study was performed to assess potential association of AIH with interleukin-2 (IL-2) and interferon-gamma (IFN-γ) genes single nucleotide polymorphisms (SNPs). METHODS: Fifty-six patients with AIH and 139 healthy individuals were enrolled in this study...
December 26, 2017: Clinics and Research in Hepatology and Gastroenterology
https://www.readbyqxmd.com/read/29286140/identification-of-key-genes-implicated-in-the-suppressive-function-of-human-foxp3-cd25-cd4-regulatory-t-cells-through-the-analysis-of-time%C3%A2-series-data
#18
Xiaofeng Bai, Hua Shi, Mingxi Yang, Yuanlin Wang, Zhaolin Sun, Shuxiong Xu
Human forkhead box P3 (FOXP3)+ cluster of differentiation (CD)25+CD4+ regulatory T cells (Tregs) are a type of T cell that express CD4, CD25 and FOXP3, which are critical for maintaining immune homeostasis. The present study aimed to determine the mechanisms underlying Treg function. The GSE11292 dataset was downloaded from the Gene Expression Omnibus, which included data from Treg cells at 19 time points (0‑360 min) with an equal interval of 20 min, and corresponding repeated samples. However, data for Treg cells at time point 120 min were missing...
December 29, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29285806/systematic-review-of-infectious-events-with-the-btk-inhibitor-ibrutinib-in-the-treatment-of-haematologic-malignancies
#19
REVIEW
Benjamin F Tillman, James M Pauff, Gowri Satyanarayana, Mahsa Talbott, Jeremy L Warner
OBJECTIVE: Ibrutinib is an irreversible inhibitor of Bruton tyrosine kinase (BTK) in B-lymphocytes as well as other kinases including interleukin-2-inducible T-cell kinase (ITK) in CD4+ Th2 regulatory T-cells. Increased infections have been observed in patients taking ibrutinib. The overall incidence has not been systematically evaluated. METHODS: The published literature and conference abstracts of prospective clinical trials using ibrutinib in haematologic malignancies were identified and reviewed using PubMed, Google Scholar, and HemOnc...
December 28, 2017: European Journal of Haematology
https://www.readbyqxmd.com/read/29285110/large-scale-ex-vivo-expansion-of-clinical-grade-effector-cells-for-adoptive-immunotherapy
#20
Huiying Yu, Wei Chen, Changling Li, Di Lin, Junde Liu, Zien Yang, Jingang Yang, Yinghui Sun, Dongchu Ma
Cell-based adoptive immunotherapy for the treatment of various cancer types has attracted the attention of scientists. However, due to the absence of unitary standard protocols to produce large quantities of clinical-grade effector cells, it remains challenging to translate the experimental findings into clinical applications. The present study used methods complying with good manufacturing practice to induce effector cells from human peripheral blood mononuclear cells (PBMCs) of healthy donors by interleukin-2 and anti-Her-2 antibody with or without anti-CD3 antibodies (OKT3)...
December 2017: Experimental and Therapeutic Medicine
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