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Natural killer cell immunotherapy

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https://www.readbyqxmd.com/read/29350342/mesenchymal-stromal-cells-of-the-bone-marrow-and-natural-killer-cells-cell-interactions-and-cross-modulation
#1
Mehdi Najar, Mohammad Fayyad-Kazan, Nathalie Meuleman, Dominique Bron, Hussein Fayyad-Kazan, Laurence Lagneaux
Bone marrow-derived mesenchymal stromal cells (BM-MSCs) are multipotent progenitor cells that have shown promise for several different therapeutic applications. As they are able to modulate the function of several types of immune cells, BM-MSCs are highly important in the field of cell-based immunotherapy. Understanding BM-MSC-natural killer (NK) cell interactions is crucial for improving their therapeutic efficiency. Here, we observed that the type of NK cell-activating cytokine (e.g., IL-2, IL-12, IL-15 and IL-21) strongly influenced the outcomes of their interactions with BM-MSCs...
January 19, 2018: Journal of Cell Communication and Signaling
https://www.readbyqxmd.com/read/29331106/kbtbd2-inhibits-the-cytotoxic-activity-of-immortalized-nk-cells-through-down-regulating-mtor-signaling-in-a-mouse-hepatocellular-carcinoma-model
#2
Kai Dai, Yabing Huang, Zubing Chen, Xiaomei Sun, Lihua Yang, Yingan Jiang
Natural killer cell (NK cell)-based immunotherapy is a promising therapeutic strategy for hepatocellular carcinoma (HCC). However, the molecular mechanisms underlying the regulation of NK cell function in the tumor sites are not completely elucidated. In this study, we identified the enhanced expression of kelch repeat and BTB (POZ) domain containing 2 (Kbtbd2) in intratumoral NK cells in a mouse HCC implantation model as a negative regulator of NK cells. To investigate this interaction,, we used a Tet-on inducible expression system to control Kbtbd2 expression in an immortalized mouse NK cell line KIL C...
January 13, 2018: European Journal of Immunology
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
#3
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/29323337/regulatory-t-cells-as-a-new-therapeutic-target-for-atherosclerosis
#4
REVIEW
Han-Xiao Ou, Bing-Bing Guo, Qi Liu, Yu-Kun Li, Zhen Yang, Wen-Jie Feng, Zhong-Cheng Mo
Atherosclerosis is an autoimmune disease caused by self- and non-self-antigens contributing to excessive activation of T and B cell immune responses. These responses further aggravate vascular inflammation and promote progression of atherosclerosis and vulnerability to plaques via releasing pro-inflammatory cytokines. Regulatory T cells (Tregs) as the major immunoregulatory cells, in particular, induce and maintain immune homeostasis and tolerance by suppressing the immune responses of various cells such as T and B cells, natural killer (NK) cells, monocytes, and dendritic cells (DCs), as well as by secreting inhibitory cytokines interleukin (IL)-10, IL-35 and transcription growth factor β (TGF-β) in both physiological and pathological states...
January 11, 2018: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/29316666/fusion-proteins-of-nkg2d-nkg2dl-in-cancer-immunotherapy
#5
REVIEW
Hui Ding, Xi Yang, Yanzhang Wei
NKG2D (natural killer group 2, member D) is an important activating receptor in natural killer (NK) cells and some T cells. NKG2D ligands (NKG2DLs) are specifically expressed on most tumor cells. The engagement of these ligands on tumor cells to NKG2D on NK cells will induce cell-mediated cytotoxicity and have target cells destroyed. This gives NKG2D/NKG2DLs great potential in cancer therapeutic application. The creation of NKG2D/NKG2DL-based multi-functional fusion proteins is becoming one of the most promising strategies in immunotherapy for cancer...
January 7, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29307241/liposomal-formulation-of-glycosphingolipids-from-sphingomonas-paucimobilis-induces-antitumor-immunity-in-mice
#6
Masood A Khan, Ahmed N Aljarbou, Yousef H Aldebasi, Mohammed S Alorainy, Arshad H Rehmani, Hina Younus, Arif Khan
Natural Killer T (NKT) cells play an important role in host`s anti-tumor immune response. Glycosphingolipids (GSLs) isolated from Sphingomonas paucimobilis have the ability to stimulate NKT cells. In the present study, the activity of free GSLs or GSLs-incorporated liposomes (glycosphingosomes) was investigated against Dimethyl-α-benzanthracene (DMBA)-induced tumors in mice. The anti-tumor immunity of GSLs or GSLs- or glycosphingosomes-loaded bone marrow-derived dendritic cells (BMDCs) was investigated in tumor-bearing mice...
January 8, 2018: Journal of Drug Targeting
https://www.readbyqxmd.com/read/29306075/fasn-tgf-%C3%AE-1-pd-l1-axis-contributes-to-the-development-of-resistance-to-nk-cell-cytotoxicity-of-cisplatin-resistant-lung-cancer-cells
#7
MingJing Shen, Ying Tsai, Rongying Zhu, Peter C Keng, Yongbing Chen, Yuhchyau Chen, Soo Ok Lee
Cisplatin remains the most effective therapy for non-small cell lung cancer (NSCLC). We previously have found cisplatin-resistant lung cancer cells (A549CisR and H157CisR) were more resistant to natural killer (NK) cell-mediated cytotoxicity than parental cells. We also discovered that fatty acid synthase (FASN) levels in cisplatin-resistant cells were significantly higher than parental cells. To reveal whether a link exists between the up-regulated FASN levels and higher resistance to NK cell cytotoxicity, we performed inhibition studies using a FASN inhibitor and applied the FASN knockdown approach...
January 3, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29285110/large-scale-ex-vivo-expansion-of-clinical-grade-effector-cells-for-adoptive-immunotherapy
#8
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
https://www.readbyqxmd.com/read/29247708/modulation-the-expression-of-natural-killer-cell-activating-receptor-nkp44-in-the-peripheral-blood-of-diffuse-large-b-cell-lymphoma-patients-and-the-correlation-with-clinic-pathological-features
#9
Enas Said Essa, Gehan Abd-Elfatah Tawfeek, Suzan Ahmed El Hassanin, Khloud Gamal Mohammed Emara
NK cell activation is one strategy to improve the immunotherapy of non-Hodgkin's lymphoma. So, we aimed to investigate expression of Natural killer cell activating receptor NKp44 in patients with diffuse large B-cell lymphoma (DLBCL) and its correlation with clinic pathological data. In this study, 30 new cases with DLBCL in addition to 20 healthy control were involved. All were submitted to full history, clinical examination, histopathology, Routine laboratory investigations including CBC, LDH, β2microgloubine and bone marrow examination...
December 13, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/29238349/the-roles-of-glycodelin-in-cancer-development-and-progression
#10
REVIEW
Juan Cui, Yanguo Liu, Xiuwen Wang
Glycodelin is a kind of glycoprotein expressed in secretory endometrium, pregnancy deciduas, and amniotic fluid originally, which is vital for the maintenance of normal human reproductive activities. Recent researches have reported that glycodelin is specifically expressed in various malignancies, including female-specific cancers such as endometrial cancer, ovarian cancer and breast cancer, and non-gender specific cancers including lung cancer, and colon cancer, and glycodelin expression correlates with the diagnosis and prognosis of cancer patients...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29235195/human-pluripotent-stem-cells-to-produce-cell-based-cancer-immunotherapy
#11
REVIEW
Huang Zhu, Yi-Shin Lai, Ye Li, Robert Blum, Dan Kaufman
Human pluripotent stem cells (PSCs) provide a promising resource to produce immune cells for adoptive cellular immunotherapy to better treat and potentially cure otherwise lethal cancers. Cytotoxic T cells and natural killer (NK) cells can now be routinely produced from human PSCs. These PSC-derived lymphocytes have phenotype and function similar to primary lymphocytes isolated from peripheral blood. PSC-derived T and NK cells have advantages compared to primary immune cells, as they can be precisely engineered to introduce improved anti-tumor activity and produced in essentially unlimited numbers...
December 13, 2017: Stem Cells
https://www.readbyqxmd.com/read/29234178/combined-extract-of-heated-4t1-and-a-heat-killed-preparation-of-lactobacillus-casei-in-a-mouse-model-of-breast-cancer
#12
Sajjad Jafari, Seyyed Meysam Abtahi Froushani, Amir Tokmachi
Background: The adjuvanticity potential of Lactobacillus casei was first suggested in an old survey. The present study was designed to investigate the efficacy of a new immunotherapy against breast cancer made by mixing an extract of heated 4T1 mammary carcinoma cell line and a heat-killed preparation of Lactobacillus casei. Methods: Female BALB/c mice (6-8 weeks old, n=40) were challenged subcutaneously in the right flanks with 4T1 cells. When all the animals developed a palpable tumor, they were allocated to 4 equal groups and immunotherapy was initiated...
September 2017: Iranian Journal of Medical Sciences
https://www.readbyqxmd.com/read/29225605/the-state-of-cellular-adoptive-immunotherapy-for-neuroblastoma-and-other-pediatric-solid-tumors
#13
Thanh-Phuong Le, To-Ha Thai
Research on adult cancer immunotherapy is proceeding at a rapid pace resulting in an impressive success rate exemplified by a few high profile cases. However, this momentum is not readily extended to pediatric immunotherapy, and it is not for lack of trying. Though reasons for the slower advance are not apparent, some issues can be raised. Pediatric cancer patients represent a distinct demographic group whose immune system is inherently different from that of mature adults. Treating pediatric patients with immunotherapy designed for adults may not yield objective clinical responses...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29216804/the-use-of-alpha-fetoprotein-for-the-treatment-of-autoimmune-diseases-and-cancer
#14
Vladimir N Pak
Alpha-fetoprotein is a shuttle protein that delivers nutrients through receptor-mediated endocytosis to embryotic cells. In adults, alpha-fetoprotein can shuttle drugs into alpha-fetoprotein receptor-positive myeloid-derived suppressor, regenerating and also cancer cells. Drugs with high-binding affinity to alpha-fetoprotein can activate or deplete targeted cells. Myeloid-derived suppressor cells activation leads to immune suppression that can be used for treating autoimmune diseases. On the other hand, toxins delivered by alpha-fetoprotein can damage myeloid-derived suppressor cells and consequently unleash innate and adaptive immunity to destroy cancer cells...
January 2018: Therapeutic Delivery
https://www.readbyqxmd.com/read/29213274/natural-killer-cells-in-antifungal-immunity
#15
REVIEW
Stanislaw Schmidt, Lars Tramsen, Thomas Lehrnbecher
Invasive fungal infections are still an important cause of morbidity and mortality in immunocompromised patients such as patients suffering from hematological malignancies or patients undergoing hematopoietic stem cell transplantion. In addition, other populations such as human immunodeficiency virus-patients are at higher risk for invasive fungal infection. Despite the availability of new antifungal compounds and better supportive care measures, the fatality rate of invasive fungal infection remained unacceptably high...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29209309/new-directions-for-natural-killer-t-cells-in-the-immunotherapy-of-cancer
#16
Luc Teyton
Natural killer T (NKT) cells have been placed at the interface between innate and adaptive immunity by a long series of experiments that convincingly showed that beyond cytokine secretion and NK cell recruitment, NKT cells were coordinating dendritic cell and B cell maturation through direct membrane contacts and initiate productive responses. As such, NKT cells are the cellular adjuvant of many immune reactions and have functions that go much beyond what their name encapsulates. In addition, the initial discovery of the ligands of NKT cells is deeply linked to cancer biology and therapy...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29194124/humanized-mouse-models-to-study-pathophysiology-and-treatment-of-hiv-infection
#17
Guillemette Masse-Ranson, Hugo Mouquet, James P Di Santo
PURPOSE OF REVIEW: Immunodeficient mice that lack all lymphocyte subsets and have phagocytic cells that are tolerant of human cells can be stably xenografted with human hematopoietic stem cell as well as other human tissues (fetal liver and thymus) creating 'human immune system' (HIS) mice. HIS mice develop all major human lymphocyte classes (B, T, natural killer, and innate lymphoid cell) and their specialized subsets as well as a variety of myeloid cells (dendritic cell, monocytes, and macrophages) thereby providing a small animal model in which to interrogate human immune responses to infection...
November 30, 2017: Current Opinion in HIV and AIDS
https://www.readbyqxmd.com/read/29189387/ex-vivo-expanded-natural-killer-cells-derived-from-long-term-cryopreserved-cord-blood-are-cytotoxic-against-primary-breast-cancer-cells
#18
Tina Nham, Sophie M Poznanski, Isabella Y Fan, Fatemeh Vahedi, Mira M Shenouda, Amanda J Lee, Marianne V Chew, Richard T Hogg, Dean A Lee, Ali A Ashkar
With over 600,000 units of umbilical cord blood (CB) stored on a global scale, it is important to elucidate the therapeutic abilities of this cryopreserved reservoir. In the advancing field of natural killer (NK) cell cancer immunotherapy, CB has proven to be a promising and noninvasive source of therapeutic NK cells. Although studies have proven the clinical efficacy of using long-term cryopreserved CB in the context of hematopoietic stem cell transplantations, little is known about its use for the ex vivo expansion of effector immune cells...
November 17, 2017: Journal of Immunotherapy
https://www.readbyqxmd.com/read/29181007/interplay-between-natural-killer-cells-and-anti-her2-antibodies-perspectives-for-breast-cancer-immunotherapy
#19
REVIEW
Aura Muntasell, Mariona Cabo, Sonia Servitja, Ignasi Tusquets, María Martínez-García, Ana Rovira, Federico Rojo, Joan Albanell, Miguel López-Botet
Overexpression of the human epidermal growth factor receptor 2 (HER2) defines a subgroup of breast tumors with aggressive behavior. The addition of HER2-targeted antibodies (i.e., trastuzumab, pertuzumab) to chemotherapy significantly improves relapse-free and overall survival in patients with early-stage and advanced disease. Nonetheless, considerable proportions of patients develop resistance to treatment, highlighting the need for additional and co-adjuvant therapeutic strategies. HER2-specific antibodies can trigger natural killer (NK) cell-mediated antibody-dependent cellular cytotoxicity and indirectly enhance the development of tumor-specific T cell immunity; both mechanisms contributing to their antitumor efficacy in preclinical models...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29163783/abundant-expression-of-tim-3-lag-3-pd-1-and-pd-l1-as-immunotherapy-checkpoint-targets-in-effusions-of-mesothelioma-patients
#20
Elly Marcq, Jorrit De Waele, Jonas Van Audenaerde, Eva Lion, Eva Santermans, Niel Hens, Patrick Pauwels, Jan P van Meerbeeck, Evelien L J Smits
Malignant pleural mesothelioma (MPM) is an aggressive cancer with an increasing incidence, poor prognosis and limited effective treatment options. Hence, new treatment strategies are warranted which include immune checkpoint blockade approaches with encouraging preliminary data. Research on the immunological aspects of the easily accessible mesothelioma microenvironment could identify prognostic and/or predictive biomarkers and provide useful insights for developing effective immunotherapy. In this context, we investigated the immune cell composition of effusions (pleural and ascites fluids) from 11 different chemotherapy-treated MPM patients...
October 27, 2017: Oncotarget
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