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https://www.readbyqxmd.com/read/28086852/pd-l1-expression-in-papillary-renal-cell-carcinoma
#1
Takanobu Motoshima, Yoshihiro Komohara, Chaoya Ma, Arni Kusuma Dewi, Hirotsugu Noguchi, Sohsuke Yamada, Toshiyuki Nakayama, Shohei Kitada, Yoshiaki Kawano, Wataru Takahashi, Masaaki Sugimoto, Motohiro Takeya, Naohiro Fujimoto, Yoshinao Oda, Masatoshi Eto
BACKGROUND: The immune escape or tolerance of cancer cells is considered to be closely involved in cancer progression. Programmed death-1 (PD-1) is an inhibitory receptor expressed on activating T cells, and several types of cancer cells were found to express PD-1 ligand 1 (PD-L1) and ligand 2 (PD-L2). METHODS: In the present study, we investigated PD-L1/2 expression in papillary renal cell carcinoma (pRCC). RESULT: We found PD-L1 expression in 29 of 102 cases, but no PD-L2 expression was seen...
January 13, 2017: BMC Urology
https://www.readbyqxmd.com/read/28052254/pan-cancer-immunogenomic-analyses-reveal-genotype-immunophenotype-relationships-and-predictors-of-response-to-checkpoint-blockade
#2
Pornpimol Charoentong, Francesca Finotello, Mihaela Angelova, Clemens Mayer, Mirjana Efremova, Dietmar Rieder, Hubert Hackl, Zlatko Trajanoski
The Cancer Genome Atlas revealed the genomic landscapes of human cancers. In parallel, immunotherapy is transforming the treatment of advanced cancers. Unfortunately, the majority of patients do not respond to immunotherapy, making the identification of predictive markers and the mechanisms of resistance an area of intense research. To increase our understanding of tumor-immune cell interactions, we characterized the intratumoral immune landscapes and the cancer antigenomes from 20 solid cancers and created The Cancer Immunome Atlas (https://tcia...
January 3, 2017: Cell Reports
https://www.readbyqxmd.com/read/28031719/potential-role-of-immunotherapy-in-advanced-non-small-cell-lung-cancer
#3
REVIEW
Ramon Andrade de Mello, Ana Flávia Veloso, Paulo Esrom Catarina, Sara Nadine, Georgios Antoniou
Immuno checkpoint inhibitors have ushered in a new era with respect to the treatment of advanced non-small-cell lung cancer. Many patients are not suitable for treatment with epidermal growth factor receptor tyrosine kinase inhibitors (eg, gefitinib, erlotinib, and afatinib) or with anaplastic lymphoma kinase inhibitors (eg, crizotinib and ceritinib). As a result, anti-PD-1/PD-L1 and CTLA-4 inhibitors may play a novel role in the improvement of outcomes in a metastatic setting. The regulation of immune surveillance, immunoediting, and immunoescape mechanisms may play an interesting role in this regard either alone or in combination with current drugs...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28018344/adjunct-strategies-for-tuberculosis-vaccines-modulating-key-immune-cell-regulatory-mechanisms-to-potentiate-vaccination
#4
REVIEW
Lakshmi Jayashankar, Richard Hafner
Tuberculosis (TB) remains a global health threat of alarming proportions, resulting in 1.5 million deaths worldwide. The only available licensed vaccine, Bacillus Calmette-Guérin, does not confer lifelong protection against active TB. To date, development of an effective vaccine against TB has proven to be elusive, and devising newer approaches for improved vaccination outcomes is an essential goal. Insights gained over the last several years have revealed multiple mechanisms of immune manipulation by Mycobacterium tuberculosis (Mtb) in infected macrophages and dendritic cells that support disease progression and block development of protective immunity...
2016: Frontiers in Immunology
https://www.readbyqxmd.com/read/28006927/the-safety-of-therapeutic-monoclonal-antibodies-implications-for-cancer-therapy-including-immuno-checkpoint-inhibitors
#5
R Demlova, D Valík, R Obermannova, L ZdraŽilová-Dubská
Monoclonal antibody-based treatment of cancer has been established as one of the most successful therapeutic strategies for both hematologic malignancies and solid tumors. In addition to targeting cancer antigens antibodies can also modulate immunological pathways that are critical to immune surveillance. Antibody therapy directed against several negative immunologic regulators (checkpoints) is demonstrating significant success in the past few years. Immune checkpoint inhibitors, ipilimumab, pembrolizumab and nivolumab, have shown significant clinical benefit in several malignancies and are already approved for advanced melanoma and squamous NSCLC...
December 21, 2016: Physiological Research
https://www.readbyqxmd.com/read/27960591/immuno-oncology-for-renal-cell-carcinoma-treatment-future-perspectives-for-combinations-and-sequences-with-molecularly-targeted-agents
#6
Camillo Porta, Ilaria Toscani, Anna M Czarnecka, Cezary A Szczylik
From a theoretical viewpoint, combining molecularly targeted agents endowed with antiangiogenic properties with immunotherapy makes sense in treatment of metastatic renal cell carcinoma (RCC); this neoplasm is highly angiogenesis-dependent, as well as potentially immunogenic. Areas covered: The authors performed a literature search looking for clinical trials aimed at evaluating efficacy and tolerability of combinations (or sequences) of molecularly targeted agents and different immunotherapeutic approaches in metastatic RCC...
February 2017: Expert Opinion on Biological Therapy
https://www.readbyqxmd.com/read/27941289/immune-checkpoint-inhibitors-in-hematologic-malignancies
#7
Dai Maruyama
Immuno-checkpoint inhibitors are one of the most promising immunotherapies for various advanced cancers including hematologic malignancies. Recently, enhanced signaling of the PD-1/CTLA4 pathway has emerged as a critical mechanism by which tumors can escape the anti-tumor immune response. PD-1-blocking antibodies have been used to enhance immunity in several malignancies and obtain durable responses, especially in patients with heavily treated relapsed/refractory Hodgkin lymphoma. Currently, several clinical trials including single agent or combination therapies for hematologic malignancies, such as Hodgkin lymphoma, B-cell lymphomas and multiple myeloma, are ongoing...
2016: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
https://www.readbyqxmd.com/read/27941285/basics-of-cancer-immunotherapy
#8
Yuki Fujioka, Hiroyoshi Nishikawa
The immune system is the body's defense against infectious organisms and other invaders including cancer cells. Cancer immunotherapy, which employs our own immune systems to attack cancer cells, is now emerging as a promising modality of cancer treatment based upon the clinical successes of immune checkpoint blockade and adoptive T cell transfer. In hematologic malignancies, clinical application of anti-PD-1 mAb and CAR (chimeric antigen receptor) T therapy is now being extensively tested in Hodgkin's disease, multiple myeloma, and CD19(+) acute lymphocytic leukemia...
2016: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
https://www.readbyqxmd.com/read/27936870/emerging-biomarkers-for-pd-1-pathway-cancer-therapy
#9
Joline Sj Lim, Raghav Sundar, Maxime Chénard-Poirier, Juanita Lopez, Timothy A Yap
The field of immuno-oncology has witnessed unprecedented success in recent years, with several PD=1 and PD-L1 inhibitors obtaining US FDA registration and breakthrough drug therapy designation in multiple tumor types. Despite its clear efficacy in certain cancers, treatment with these agents carries a risk of immune-related toxicities and substantial financial burden. It is, therefore, critical to identify patients likely to benefit from such immunotherapies and develop strategies to differentiate responders from nonresponders early during treatment...
January 2017: Biomarkers in Medicine
https://www.readbyqxmd.com/read/27931845/immuno-oncology-allying-forces-of-radio-and-immuno-therapy-to-enhance-cancer-cell-killing
#10
REVIEW
Jacques Bernier
Besides the local effects of ionizing radiation at the cellular and molecular levels in tumor tissues, the interactions of radiotherapy with the host's immune system are nowadays at the center of many investigations. In some cases, these interactions can be strong enough to immunize the patient against the tumor, leading to a rejection by the host of both the irradiated tumor and distant metastases. In this latter case, the rejection mechanism is called "abscopal effect". Over the last two decades, increasing attention has also been paid to the combination of various forms of immunotherapies with radiation, as an attempt to boost cancer cell killing mechanisms...
December 2016: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/27930550/role-of-immune-cells-in-pancreatic-cancer-from-bench-to-clinical-application-an-updated-review
#11
Jae Hyuck Chang, Yongjian Jiang, Venu G Pillarisetty
BACKGROUND: Pancreatic cancer (PC) remains difficult to treat, despite the recent advances in various anticancer therapies. Immuno-inflammatory response is considered to be a major risk factor for the development of PC in addition to a combination of genetic background and environmental factors. Although patients with PC exhibit evidence of systemic immune dysfunction, the PC microenvironment is replete with immune cells. METHODS: We searched PubMed for all relevant English language articles published up to March 2016...
December 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27923825/rational-selection-of-syngeneic-preclinical-tumor-models-for-immunotherapeutic-drug-discovery
#12
Suzanne I S Mosely, John E Prime, Richard C A Sainson, Jens-Oliver Koopmann, Dennis Y Q Wang, Danielle M Greenawalt, Miika J Ahdesmaki, Rebecca Leyland, Stefanie Mullins, Luciano Pacelli, Danielle Marcus, Judith Anderton, Amanda Watkins, Jane Coates Ulrichsen, Philip Brohawn, Brandon W Higgs, Matthew McCourt, Hazel Jones, James A Harper, Michelle Morrow, Viia Valge-Archer, Ross Stewart, Simon J Dovedi, Robert W Wilkinson
Murine syngeneic tumor models are critical to novel immuno-based therapy development, but the molecular and immunologic features of these models are still not clearly defined. The translational relevance of differences between the models is not fully understood, impeding appropriate preclinical model selection for target validation, and ultimately hindering drug development. Across a panel of commonly used murine syngeneic tumor models, we showed variable responsiveness to immunotherapies. We used array comparative genomic hybridization, whole-exome sequencing, exon microarray analysis, and flow cytometry to extensively characterize these models, which revealed striking differences that may underlie these contrasting response profiles...
December 6, 2016: Cancer Immunology Research
https://www.readbyqxmd.com/read/27846884/future-perspectives-in-melanoma-research-meeting-report-from-the-melanoma-bridge-napoli-december-1st-4th-2015
#13
Paolo A Ascierto, Sanjiv Agarwala, Gerardo Botti, Alessandra Cesano, Gennaro Ciliberto, Michael A Davies, Sandra Demaria, Reinhard Dummer, Alexander M Eggermont, Soldano Ferrone, Yang Xin Fu, Thomas F Gajewski, Claus Garbe, Veronica Huber, Samir Khleif, Michael Krauthammer, Roger S Lo, Giuseppe Masucci, Giuseppe Palmieri, Michael Postow, Igor Puzanov, Ann Silk, Stefani Spranger, David F Stroncek, Ahmad Tarhini, Janis M Taube, Alessandro Testori, Ena Wang, Jennifer A Wargo, Cassian Yee, Hassane Zarour, Laurence Zitvogel, Bernard A Fox, Nicola Mozzillo, Francesco M Marincola, Magdalena Thurin
The sixth "Melanoma Bridge Meeting" took place in Naples, Italy, December 1st-4th, 2015. The four sessions at this meeting were focused on: (1) molecular and immune advances; (2) combination therapies; (3) news in immunotherapy; and 4) tumor microenvironment and biomarkers. Recent advances in tumor biology and immunology has led to the development of new targeted and immunotherapeutic agents that prolong progression-free survival (PFS) and overall survival (OS) of cancer patients. Immunotherapies in particular have emerged as highly successful approaches to treat patients with cancer including melanoma, non-small cell lung cancer (NSCLC), renal cell carcinoma (RCC), bladder cancer, and Hodgkin's disease...
November 15, 2016: Journal of Translational Medicine
https://www.readbyqxmd.com/read/27792052/novel-insights-in-the-regulation-and-function-of-macrophages-in-the-tumor-microenvironment
#14
Evangelia Bolli, Kiavash Movahedi, Damya Laoui, Jo A Van Ginderachter
PURPOSE OF REVIEW: Tumors contain not only cancer cells but also nontransformed types of cells, the stromal cells. A bidirectional interplay exists between transformed and nontransformed cells leading to tumor progression and metastasis. Tumor-associated macrophages (TAMs) are the most abundant tumor-infiltrating leukocytes characterized by a high heterogeneity and plasticity. TAMs exhibit strong protumoral activities and are related to bad prognosis and worse overall survival in various cancer types...
January 2017: Current Opinion in Oncology
https://www.readbyqxmd.com/read/27789023/the-evolution-of-oncology-companion-diagnostics-from-signal-transduction-to-immuno-oncology
#15
REVIEW
Nicholas C Dracopoli, Mark S Boguski
Sixteen oncology drugs have been approved with a companion diagnostic (CDx) test by the FDA. These represent only 9.6% of the 167 oncology drug approvals since 1998, the year the first CDx test for Herceptin was approved. The great majority of CDx tests are for drugs that inhibit signal transduction pathways by either inhibiting the intracellular kinase activity with a small molecule or preventing ligand-induced receptor activation with a monoclonal antibody. In most of these cases, prospective patient selection for the biomarker-positive subpopulation was initiated in or before Phase II...
January 2017: Trends in Pharmacological Sciences
https://www.readbyqxmd.com/read/27783034/aptamers-a-new-technological-platform-in-cancer-immunotherapy
#16
REVIEW
Fernando Pastor
The renaissance of cancer immunotherapy is, nowadays, a reality. In the near future, it will be very likely among the first-line treatments for cancer patients. There are several different approaches to modulate the immune system to fight against tumor maladies but, so far, monoclonal antibodies may currently be the most successful immuno-tools used to that end. The number of ongoing clinical trials with monoclonal antibodies has been increasing exponentially over the last few years upon the Food and Drug Administration (FDA) approval of the first immune-checkpoint blockade antibodies...
October 24, 2016: Pharmaceuticals
https://www.readbyqxmd.com/read/27777979/the-head-and-neck-cancer-immune-landscape-and-its-immunotherapeutic-implications
#17
Rajarsi Mandal, Yasin Şenbabaoğlu, Alexis Desrichard, Jonathan J Havel, Martin G Dalin, Nadeem Riaz, Ken-Wing Lee, Ian Ganly, A Ari Hakimi, Timothy A Chan, Luc G T Morris
Recent clinical trials have demonstrated a clear survival advantage in advanced head and neck squamous cell carcinoma (HNSCC) patients treated with immune checkpoint blockade. These emerging results reveal that HNSCC is one of the most promising frontiers for immunotherapy research. However, further progress in head and neck immuno-oncology will require a detailed understanding of the immune infiltrative landscape found in these tumors. We leveraged transcriptome data from 280 tumors profiled by The Cancer Genome Atlas (TCGA) to comprehensively characterize the immune landscape of HNSCC in order to develop a rationale for immunotherapeutic strategies in HNSCC and guide clinical investigation...
October 20, 2016: JCI Insight
https://www.readbyqxmd.com/read/27742649/next-steps-in-immuno-oncology-enhancing-antitumor-effects-through-appropriate-patient-selection-and-rationally-designed-combination-strategies
#18
A K S Salama, S J Moschos
BACKGROUND: Cancers escape immune surveillance via distinct mechanisms that involve central (negative selection within the thymus) or peripheral (lack of costimulation, receipt of death/anergic signals by tumor, immunoregulatory cell populations) immune tolerance. During the 1990s, moderate clinical benefit was seen using several cytokine therapies for a limited number of cancers. Over the past 20 years, extensive research has been performed to understand the role of various components of peripheral immune tolerance, with the co-inhibitory immune checkpoint molecules cytotoxic T-lymphocyte antigen 4 (CTLA-4), programmed death 1 (PD-1), and its ligand (PD-L1) being the most well characterized at preclinical and clinical levels...
October 13, 2016: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/27714433/tumor-directed-immunotherapy-can-generate-tumor-specific-t-cell-responses-through-localized-co-stimulation
#19
REVIEW
Peter Ellmark, Sara M Mangsbo, Christina Furebring, Per Norlén, Thomas H Tötterman
The most important goals for the field of immuno-oncology are to improve the response rate and increase the number of tumor indications that respond to immunotherapy, without increasing adverse side effects. One approach to achieve these goals is to use tumor-directed immunotherapy, i.e., to focus the immune activation to the most relevant part of the immune system. This may improve anti-tumor efficacy as well as reduce immune-related adverse events. Tumor-directed immune activation can be achieved by local injections of immune modulators in the tumor area or by directing the immune modulator to the tumor using bispecific antibodies...
October 6, 2016: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/27663482/immuno-pharmacodynamics-for-evaluating-mechanism-of-action-and-developing-immunotherapy-combinations
#20
REVIEW
Ralph E Parchment, Andrea Regier Voth, James H Doroshow, Jay A Berzofsky
Immunotherapy has become a major modality of cancer treatment, with multiple new classes of immunotherapeutics recently entering the clinic and obtaining market approval from regulatory agencies. While the promise of these therapies is great, so is the number of possible combinations not only with each other but also with small molecule therapeutics. Furthermore, the observation of unusual dose-response relationships suggests a critical dependency of drug effectiveness on the dosage regimen (dose and schedule)...
August 2016: Seminars in Oncology
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