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Cancer Immunology, Immunotherapy: CII

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https://www.readbyqxmd.com/read/29785657/novel-non-invasive-early-detection-of-lung-cancer-using-liquid-immunobiopsy-metabolic-activity-profiles
#1
Yochai Adir, Shoval Tirman, Shirley Abramovitch, Cynthia Botbol, Aviv Lutaty, Tali Scheinmann, Eyal Davidovits, Irit Arbel, Giora Davidovits, Sonia Schneer, Michal Shteinberg, Hagit Peretz Soroka, Ruven Tirosh, Fernando Patolsky
Lung cancer is the leading cause of cancer death worldwide. Survival is largely dependent on the stage of diagnosis: the localized disease has a 5-year survival greater than 55%, whereas, for spread tumors, this rate is only 4%. Therefore, the early detection of lung cancer is key for improving prognosis. In this study, we present an innovative, non-invasive, cancer detection approach based on measurements of the metabolic activity profiles of immune system cells. For each Liquid ImmunoBiopsy test, a 384 multi-well plate is loaded with freshly separated PBMCs, and each well contains 1 of the 16 selected stimulants in several increasing concentrations...
May 21, 2018: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/29785656/how-to-measure-the-immunosuppressive-activity-of-mdsc-assays-problems-and-potential-solutions
#2
Annika M Bruger, Anca Dorhoi, Gunes Esendagli, Katarzyna Barczyk-Kahlert, Pierre van der Bruggen, Marie Lipoldova, Tomas Perecko, Juan Santibanez, Margarida Saraiva, Jo A Van Ginderachter, Sven Brandau
Myeloid-derived suppressor cells (MDSC) are a heterogeneous group of mononuclear and polymorphonuclear myeloid cells, which are present at very low numbers in healthy subjects, but can expand substantially under disease conditions. Depending on disease type and stage, MDSC comprise varying amounts of immature and mature differentiation stages of myeloid cells. Validated unique phenotypic markers for MDSC are still lacking. Therefore, the functional analysis of these cells is of central importance for their identification and characterization...
May 21, 2018: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/29754218/genetic-variants-in-the-hla-class-ii-region-associated-with-risk-of-cutaneous-squamous-cell-carcinoma
#3
Wei Wang, Hanna M Ollila, Alice S Whittemore, Shadmehr Demehri, Nilah M Ioannidis, Eric Jorgenson, Emmanuel Mignot, Maryam M Asgari
BACKGROUND: The immune system has been implicated in the pathophysiology of cutaneous squamous cell carcinoma (cSCC) as evidenced by the substantially increased risk of cSCC in immunosuppressed individuals. Associations between cSCC risk and single nucleotide polymorphisms (SNPs) in the HLA region have been identified by genome-wide association studies (GWAS). The translation of the associated HLA SNPs to structural amino acids changes in HLA molecules has not been previously elucidated...
May 12, 2018: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/29748898/cystatin-f-as-a-regulator-of-immune-cell-cytotoxicity
#4
REVIEW
Janko Kos, Milica Perišić Nanut, Mateja Prunk, Jerica Sabotič, Esmeralda Dautović, Anahid Jewett
Cysteine cathepsins are lysosomal peptidases involved in the regulation of innate and adaptive immune responses. Among the diverse processes, regulation of granule-dependent cytotoxicity of cytotoxic T-lymphocytes (CTLs) and natural killer (NK) cells during cancer progression has recently gained significant attention. The function of cysteine cathepsins is regulated by endogenous cysteine protease inhibitors-cystatins. Whereas other cystatins are generally cytosolic or extracellular proteins, cystatin F is present in endosomes and lysosomes and is thus able to regulate the activity of its target directly...
May 10, 2018: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/29748897/myeloid-derived-suppressor-cells-mdscs-in-patients-with-solid-tumors-considerations-for-granulocyte-colony-stimulating-factor-treatment
#5
REVIEW
Katerina Pilatova, Beatrix Bencsikova, Regina Demlova, Dalibor Valik, Lenka Zdrazilova-Dubska
Myeloid-derived suppressor cells (MDSCs) have been shown to contribute to tumor escape from host immune surveillance and to cancer progression by production of tumor-promoting soluble factors. Granulocyte colony-stimulating factor (G-CSF) is a principle cytokine controlling granulocyte number. Recombinant human G-CSF (rhG-CSF) has become the main therapeutic agent for the treatment of neutropenia and prophylaxis of febrile neutropenia in cancer patients. However, we show here that rhG-CSF triggers accumulation of granulocytic and monocytic subsets...
May 10, 2018: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/29737376/author-correction-hypericin-based-photodynamic-therapy-induces-surface-exposure-of-damage-associated-molecular-patterns-like-hsp70-and-calreticulin
#6
Abhishek D Garg, Dmitri V Krysko, Peter Vandenabeele, Patrizia Agostinis
This correction refers to our Short Communication published in Cancer Immunology Immunotherapy in the year 2012 [1]. It has come to our attention that some errors resulting from accidental oversight concerning incorrect deletion/replacement of temporary placeholder images during figure assembly and mounting occurred during the assembly of the "Intracellular Proteins" immunoblots presented in Fig. 1A and Fig. 1D.
May 8, 2018: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/29737375/vista-expression-on-tumor-infiltrating-inflammatory-cells-in-primary-cutaneous-melanoma-correlates-with-poor-disease-specific-survival
#7
Lawrence F Kuklinski, Shaofeng Yan, Zhongze Li, Jan L Fisher, Chao Cheng, Randolph J Noelle, Christina V Angeles, Mary Jo Turk, Marc S Ernstoff
Adaptive immune responses contribute to the pathogenesis of melanoma by facilitating immune evasion. V-domain Ig suppressor of T-cell activation (VISTA) is a potent negative regulator of T-cell function and is expressed at high levels on monocytes, granulocytes, and macrophages, and at lower densities on T-cell populations within the tumor microenvironment. In this study, 85 primary melanoma specimens were selected from pathology tissue archives and immunohistochemically stained for CD3, PD-1, PD-L1, and VISTA...
May 8, 2018: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/29728723/pushing-the-limits-of-immune-related-response-a-case-of-extreme-pseudoprogression
#8
Alvin S Wong, Yee-Liang Thian, Jeevesh Kapur, Cheng-Nang Leong, Patrick Kee, Chun-Tsu Lee, Martin B Lee
The advent of immune checkpoint targeted immunotherapy has seen a spectrum of immune-related phenomena in both tumor responses and toxicities. We describe a case of pseudoprogression that pushes the limits of immune-related response criteria and challenges the boundaries and definitions set by trial protocols. A middle-aged man with conventional clear cell renal cell carcinoma (RCC) had received multiple prior systemic treatments including vascular endothelial growth factor receptor tyrosine kinase inhibitors, as well as multiple surgeries and radiotherapy treatments...
May 4, 2018: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/29700568/response-to-immune-mediated-cholangitis-is-it-always-nivolumab-s-fault
#9
LETTER
Jumpei Kashima, Yusuke Okuma
No abstract text is available yet for this article.
April 26, 2018: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/29696308/role-of-mda5-and-interferon-i-in-dendritic-cells-for-t-cell-expansion-by-anti-tumor-peptide-vaccines-in-mice
#10
Hussein Sultan, Juan Wu, Takumi Kumai, Andres M Salazar, Esteban Celis
Cytotoxic T lymphocytes (CTLs) are effective components of the immune system capable of destroying tumor cells. Generation of CTLs using peptide vaccines is a practical approach to treat cancer. We have previously described a peptide vaccination strategy that generates vast numbers of endogenous tumor-reactive CTLs after two sequential immunizations (prime-boost) using poly-ICLC adjuvant, which stimulates endosomal toll-like receptor 3 (TLR3) and cytoplasmic melanoma differentiation antigen 5 (MDA5). Dendritic cells (DCs) play an important role not only in antigen presentation but are critical in generating costimulatory cytokines that promote CTL expansion...
April 25, 2018: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/29687231/the-binding-of-an-anti-pd-1-antibody-to-fc%C3%AE-r%C3%AE-has-a-profound-impact-on-its-biological-functions
#11
Tong Zhang, Xiaomin Song, Lanlan Xu, Jie Ma, Yanjuan Zhang, Wenfeng Gong, Yilu Zhang, Xiaosui Zhou, Zuobai Wang, Yali Wang, Yingdi Shi, Huichen Bai, Ning Liu, Xiaolong Yang, Xinxin Cui, Yanping Cao, Qi Liu, Jing Song, Yucheng Li, Zhiyu Tang, Mingming Guo, Lai Wang, Kang Li
Antibodies targeting PD-1 have been demonstrated durable anti-cancer activity in certain cancer types. However, the anti-PD-1 antibodies are less or not efficacious in many situations, which might be attributed to co-expression of multiple inhibitory receptors or presence of immunosuppressive cells in the tumor microenvironment. Most of the anti-PD-1 antibodies used in clinical studies are of IgG4 isotype with the S228P mutation (IgG4S228P ). The functional impact by the interaction of anti-PD-1 IgG4S228P antibody with Fc gamma receptors (FcγRs) is poorly understood...
April 23, 2018: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/29671006/regulatory-t-cells-control-endothelial-chemokine-production-and-migration-of-t-cells-into-intestinal-tumors-of-apc-min-mice
#12
Paulina Akeus, Louis Szeponik, Filip Ahlmanner, Patrik Sundström, Samuel Alsén, Bengt Gustavsson, Tim Sparwasser, Sukanya Raghavan, Marianne Quiding-Järbrink
Tumor-infiltrating lymphocytes are crucial for anti-tumor immunity. We have previously shown that regulatory T cells (Treg) are able to reduce T-cell transendothelial migration in vitro and accumulation of effector T cells in intestinal tumors in vivo. Treg depletion also resulted in increased levels of the chemokines CXCL9 and CXCL10 specifically in the tumors. In this study, we investigated the mechanisms for Treg mediated suppression of T-cell migration into intestinal tumors in the APCmin/+ mouse model...
April 18, 2018: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/29644387/personalized-cancer-vaccines-adjuvants-are-important-too
#13
REVIEW
Cécile Gouttefangeas, Hans-Georg Rammensee
Therapeutic cancer vaccines have shown limited clinical efficacy so far. Nevertheless, in the meantime, our understanding of immune cell function and the interactions of immune cells with growing tumors has advanced considerably. We are now in a position to invest this knowledge into the design of more powerful vaccines and therapy combinations aimed at increasing immunogenicity and decreasing tumor-induced immunosuppression. This review focuses essentially on peptide-based human vaccines. We will discuss two aspects that are critical for increasing their intrinsic immunogenicity: the selection of the antigen(s) to be targeted, and the as yet unmet need for strong adjuvants...
April 11, 2018: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/29623342/immune-mediated-cholangitis-is-it-always-nivolumab-s-fault
#14
LETTER
Francesco Gelsomino, Giovanni Vitale, Andrea Ardizzoni
No abstract text is available yet for this article.
April 5, 2018: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/29619509/interferon-%C3%AE-2b-induced-stat3-suppression-in-myeloid-derived-suppressor-cells-in-mycosis-fungoides
#15
LETTER
Larisa J Geskin, Oleg E Akilov, Michael K Schowalter, Louis D Falo
No abstract text is available yet for this article.
April 4, 2018: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/29605883/induction-of-a-central-memory-and-stem-cell-memory-phenotype-in-functionally-active-cd4-and-cd8-car-t-cells-produced-in-an-automated-good-manufacturing-practice-system-for-the-treatment-of-cd19-acute-lymphoblastic-leukemia
#16
Franziska Blaeschke, Dana Stenger, Theresa Kaeuferle, Semjon Willier, Ramin Lotfi, Andrew Didier Kaiser, Mario Assenmacher, Michaela Döring, Judith Feucht, Tobias Feuchtinger
Relapsed/refractory B-precursor acute lymphoblastic leukemia (pre-B ALL) remains a major therapeutic challenge. Chimeric antigen receptor (CAR) T cells are promising treatment options. Central memory T cells (Tcm) and stem cell-like memory T cells (Tscm) are known to promote sustained proliferation and persistence after T-cell therapy, constituting essential preconditions for treatment efficacy. Therefore, we set up a protocol for anti-CD19 CAR T-cell generation aiming at high Tcm/Tscm numbers. 100 ml peripheral blood from pediatric pre-B ALL patients was processed including CD4+ /CD8+ -separation, T-cell activation with modified anti-CD3/-CD28 reagents and transduction with a 4-1BB-based second generation CAR lentiviral vector...
March 31, 2018: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/29600445/tumor-lysate-based-vaccines-on-the-road-to-immunotherapy-for-gallbladder-cancer
#17
REVIEW
Daniel Rojas-Sepúlveda, Andrés Tittarelli, María Alejandra Gleisner, Ignacio Ávalos, Cristián Pereda, Iván Gallegos, Fermín Eduardo González, Mercedes Natalia López, Jean Michel Butte, Juan Carlos Roa, Paula Fluxá, Flavio Salazar-Onfray
Immunotherapy based on checkpoint blockers has proven survival benefits in patients with melanoma and other malignancies. Nevertheless, a significant proportion of treated patients remains refractory, suggesting that in combination with active immunizations, such as cancer vaccines, they could be helpful to improve response rates. During the last decade, we have used dendritic cell (DC) based vaccines where DCs loaded with an allogeneic heat-conditioned melanoma cell lysate were tested in a series of clinical trials...
March 29, 2018: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/29574491/the-role-of-myeloid-derived-suppressor-cells-in-mycosis-fungoides
#18
LETTER
Alessandro Pileri, Claudio Agostinelli, Pietro Quaglino, Annalisa Patrizi, Nicola Pimpinelli
No abstract text is available yet for this article.
March 24, 2018: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/29572702/depleted-polymorphonuclear-leukocytes-in-human-metastatic-liver-reflect-an-altered-immune-microenvironment-associated-with-recurrent-metastasis
#19
Fiona Hand, Cathal Harmon, Louise A Elliott, Francesco Caiazza, Aonghus Lavelle, Donal Maguire, Emir Hoti, Niamh Nolan, Justin G Geoghegan, Elizabeth J Ryan, Cliona O'Farrelly
BACKGROUND: Hepatic immunity, normally protective against neoplasia, is subverted in colorectal liver metastasis (CRLM). Here, we compare the inflammatory microenvironment of CRLM-bearing liver tissue to donor liver. METHODS: Twenty-five patients undergoing resection for CRLM were recruited, 13 of whom developed intrahepatic recurrence within 18 months. Biopsies were obtained from tumour and normal liver tissue adjacent to and distal from, the tumour. Donor liver biopsies were obtained during transplantation...
March 23, 2018: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/29572701/diacylglycerol-kinase-%C3%AE-inactivation-is-an-integral-component-of-the-costimulatory-pathway-that-amplifies-tcr-signals
#20
Javier Arranz-Nicolás, Jesús Ogando, Denise Soutar, Raquel Arcos-Pérez, Daniel Meraviglia-Crivelli, Santos Mañes, Isabel Mérida, Antonia Ávila-Flores
The arsenal of cancer therapies has evolved to target T lymphocytes and restore their capacity to destroy tumor cells. T cells rely on diacylglycerol (DAG) to carry out their functions. DAG availability and signaling are regulated by the enzymes diacylglycerol kinase (DGK) α and ζ, whose excess function drives T cells into hyporesponsive states. Targeting DGKα is a promising strategy for coping with cancer; its blockade could reinstate T-cell attack on tumors while limiting tumor growth, due to positive DGKα functions in several oncogenic pathways...
March 23, 2018: Cancer Immunology, Immunotherapy: CII
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