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https://www.readbyqxmd.com/read/29336431/anti-pd1-in-the-wonder-gut-land
#1
Marie Vetizou, Giorgio Trinchieri
After the initial success of cancer immunotherapy using immune checkpoint blockers, the challenge is to understand why only a minority of patients respond to the therapy and to increase the rate of response. Three recent papers now report that the gut microbiota modulates the response to anti-PD1 therapy in patients with epithelial cancers or melanoma.
January 16, 2018: Cell Research
https://www.readbyqxmd.com/read/29329113/therapeutic-hiv-1-vaccine-time-for-immunomodulation-and-combinatorial-strategies
#2
Nabila Seddiki, Yves Lévy
PURPOSE OF REVIEW: The purpose is to recall some of the key immunological elements that are at the crossroad and need to be combined for developing a potent therapeutic HIV-1 vaccine. RECENT FINDINGS: Therapeutic vaccines and cytokines have been commonly used to enhance and/or recall preexisting HIV-1 specific cell-mediated immune responses aiming to suppress virus replication. While the vaccine is important to stimulate HIV-1 specific T-cell responses, the cytokine may support the expansion of the stimulated virus-specific T cells...
January 10, 2018: Current Opinion in HIV and AIDS
https://www.readbyqxmd.com/read/29318591/immune-checkpoint-molecules-in-acute-myeloid-leukaemia-managing-the-double-edged-sword
#3
REVIEW
Willemijn Hobo, Tim J A Hutten, Nicolaas P M Schaap, Harry Dolstra
New immunotherapeutic interventions have revolutionized cancer treatment. The immune responsiveness of acute myeloid leukaemia (AML) was first demonstrated by allogeneic stem cell transplantation. In addition, milder immunotherapeutic approaches are exploited. However, the long-term efficacy of these therapies is hampered by various immune resistance and editing mechanisms. In this regard, co-inhibitory signalling pathways have been shown to play a crucial role. Via up-regulation of inhibitory checkpoints, tumour-reactive T cell and Natural Killer cell responses can be strongly impeded...
January 9, 2018: British Journal of Haematology
https://www.readbyqxmd.com/read/29296022/targeting-immune-checkpoints-potentiates-immunoediting-and-changes-the-dynamics-of-tumor-evolution
#4
Mirjana Efremova, Dietmar Rieder, Victoria Klepsch, Pornpimol Charoentong, Francesca Finotello, Hubert Hackl, Natascha Hermann-Kleiter, Martin Löwer, Gottfried Baier, Anne Krogsdam, Zlatko Trajanoski
The cancer immunoediting hypothesis postulates a dual role of the immune system: protecting the host by eliminating tumor cells, and shaping the tumor by editing its genome. Here, we elucidate the impact of evolutionary and immune-related forces on editing the tumor in a mouse model for hypermutated and microsatellite-instable colorectal cancer. Analyses of wild-type and immunodeficient RAG1 knockout mice transplanted with MC38 cells reveal that upregulation of checkpoint molecules and infiltration by Tregs are the major tumor escape mechanisms...
January 2, 2018: Nature Communications
https://www.readbyqxmd.com/read/29283446/potential-cardiac-risk-of-immune-checkpoint-blockade-as-anticancer-treatment-what-we-know-what-we-do-not-know-and-what-we-can-do-to-prevent-adverse-effects
#5
REVIEW
Paolo Spallarossa, Giovanni Meliota, Claudio Brunelli, Eleonora Arboscello, Pietro Ameri, Christian Cadeddu Dessalvi, Francesco Grossi, Martino Deidda, Donato Mele, Matteo Sarocchi, Andrea Bellodi, Rosalinda Madonna, Giuseppe Mercuro
Cancer immunotherapy has become a well-established treatment option for some cancers after the development of a family of drugs targeting the so-called immune checkpoints, such as CTLA4 and PD-1 with PD-L1. These co-receptors/ligands inhibit the activation of T-cell, thus preventing an excessive inflammatory response. Tumors exploit these pathways to induce immune tolerance to themselves. Thus, the main effect of checkpoint-blocking drugs is to awake an immune response primarily directed against cancer cells...
December 28, 2017: Medicinal Research Reviews
https://www.readbyqxmd.com/read/29275464/the-role-of-tumor-microenvironment-in-cancer-immunotherapy
#6
Timothy Frankel, Mirna Perusina Lanfranca, Weiping Zou
The field of tumor immunology and immunotherapy has undergone a renaissance in the past decade do in large part to a better understanding of the tumor immune microenvironment. After suffering countless successes and setbacks in the twentieth century, immunotherapy has now come to the forefront of cancer research and is recognized as an important tool in the anti-tumor armamentarium. The goal of therapy is to aid the immune system in recognition and destruction of tumor cells by enhancing its ability to react to tumor antigens...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29258856/emerging-biomarkers-for-the-combination-of-radiotherapy-and-immune-checkpoint-blockers
#7
REVIEW
Claire Lhuillier, Claire Vanpouille-Box, Lorenzo Galluzzi, Silvia Chiara Formenti, Sandra Demaria
Over the past few years, multiple immune checkpoint blockers (ICBs) have achieved unprecedented clinical success and have been approved by regulatory agencies for the treatment of an increasing number of malignancies. However, only a limited fraction of patients responds to ICBs employed as a standalone intervention, calling for the development of combinatorial regimens. Radiation therapy (RT) stands out as a very promising candidate for this purpose. Indeed, RT mediates antineoplastic effects not only by cytotoxic and cytostatic mechanisms, but also by modulating immunological functions, both locally (within the irradiated field) and systemically...
December 16, 2017: Seminars in Cancer Biology
https://www.readbyqxmd.com/read/29239458/treatment-of-advanced-melanoma-a-changing-landscape
#8
Adriana Hepner, Alessandra Salgues, Carlos A Dos Anjos, Marina Sahade, Veridiana P Camargo, Bernardo Garicochea, Alexander N Shoushtari, Michael A Postow, Gustavo S Fernandes, Rodrigo R Munhoz
Following decades of relative ostracism, advances in the treatment of melanoma have brought a new reality for patients, physicians and researchers. While antibodies targeting molecules involved in the modulation of the interaction between melanoma and immune cells changed the meaning of the term "cancer immunotherapy," a better characterization of the molecular aberrations involved in melanoma carcinogenesis prompted the development of inhibitors of the mitogen-activated protein kinase pathway (MAPK) that also led to significant improvements both in response rates and survival...
September 2017: Revista da Associação Médica Brasileira
https://www.readbyqxmd.com/read/29238906/thyroid-dysfunctions-secondary-to-cancer-immunotherapy
#9
REVIEW
P Chalan, G Di Dalmazi, F Pani, A De Remigis, A Corsello, P Caturegli
BACKGROUND: Immunotherapy is a firmly established pillar in the treatment of cancer, alongside the traditional approaches of surgery, radiotherapy, and chemotherapy. Like every treatment, also cancer immunotherapy causes a diverse spectrum of side effects, collectively referred to as immune-related adverse events. OBJECTIVE: This review will examine the main forms of immunotherapy, the proposed mechanism(s) of action, and the incidence of thyroid dysfunctions. METHODS: A comprehensive MEDLINE search was performed for articles published up to March 30, 2017...
December 13, 2017: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/29234329/neoantigens-generated-by-individual-mutations-and-their-role-in-cancer-immunity-and-immunotherapy
#10
REVIEW
Mirjana Efremova, Francesca Finotello, Dietmar Rieder, Zlatko Trajanoski
Recent preclinical and clinical studies have proved the long-standing hypothesis that tumors elicit adaptive immune responses and that the antigens driving effective T-cell response are neoantigens, i.e., peptides that are generated from somatically mutated genes. Hence, the characterization of neoantigens and the identification of the immunogenic ones are of utmost importance for improving cancer immunotherapy and broadening its efficacy to a larger fraction of patients. In this review, we first introduce the methods used for the quantification of neoantigens using next-generation sequencing data and then summarize results obtained using these tools to characterize the neoantigen landscape in solid cancers...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29209575/trial-watch-dna-based-vaccines-for-oncological-indications
#11
REVIEW
Stefano Pierini, Renzo Perales-Linares, Mireia Uribe-Herranz, Jonathan G Pol, Laurence Zitvogel, Guido Kroemer, Andrea Facciabene, Lorenzo Galluzzi
DNA-based vaccination is a promising approach to cancer immunotherapy. DNA-based vaccines specific for tumor-associated antigens (TAAs) are indeed relatively simple to produce, cost-efficient and well tolerated. However, the clinical efficacy of DNA-based vaccines for cancer therapy is considerably limited by central and peripheral tolerance. During the past decade, considerable efforts have been devoted to the development and characterization of novel DNA-based vaccines that would circumvent this obstacle...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/29209572/trial-watch-immunostimulatory-monoclonal-antibodies-for-oncological-indications
#12
REVIEW
Mariona Cabo, Rienk Offringa, Laurence Zitvogel, Guido Kroemer, Aura Muntasell, Lorenzo Galluzzi
The goal of cancer immunotherapy is to establish new or boost pre-existing anticancer immune responses that eradicate malignant cells while generating immunological memory to prevent disease relapse. Over the past few years, immunomodulatory monoclonal antibodies (mAbs) that block co-inhibitory receptors on immune effectors cells - such as cytotoxic T lymphocyte-associated protein 4 (CTLA4), programmed cell death 1 (PDCD1, best known as PD-1) - or their ligands - such as CD274 (best known as PD-L1) - have proven very successful in this sense...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/29163786/axl-inhibition-induces-the-antitumor-immune-response-which-can-be-further-potentiated-by-pd-1-blockade-in-the-mouse-cancer-models
#13
Zhiqiang Guo, Yan Li, Dandan Zhang, Jiaying Ma
Immune checkpoint blockers (ICB) have emerged as a promising new class of antitumor agents which significantly change the treatment landscape in a range of tumors; however, cancer patients benefited from ICB-based immunotherapy remains limited, scoring the need to explore the combination treatments with synergistic mechanisms of action. Axl receptor tyrosine kinase critically involves in the carcinogenesis of multiple cancers due to its dual roles in both promoting cancer invasion and metastasis and suppressing myeloid cell activation and function...
October 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/29147629/trial-watch-immune-checkpoint-blockers-for-cancer-therapy
#14
REVIEW
Claire Vanpouille-Box, Claire Lhuillier, Lucillia Bezu, Fernando Aranda, Takahiro Yamazaki, Oliver Kepp, Jitka Fucikova, Radek Spisek, Sandra Demaria, Silvia C Formenti, Laurence Zitvogel, Guido Kroemer, Lorenzo Galluzzi
Immune checkpoint blockers (ICBs) are literally revolutionizing the clinical management of an ever more diversified panel of oncological indications. Although considerable attention persists around the inhibition of cytotoxic T lymphocyte-associated protein 4 (CTLA4) and programmed cell death 1 (PDCD1, best known as PD-1) signaling, several other co-inhibitory T-cell receptors are being evaluated as potential targets for the development of novel ICBs. Moreover, substantial efforts are being devoted to the identification of biomarkers that reliably predict the likelihood of each patient to obtain clinical benefits from ICBs in the absence of severe toxicity...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/29145885/future-perspectives-in-melanoma-research-melanoma-bridge-napoli-november-30th-3rd-december-2016
#15
Paolo A Ascierto, Sanjiv S Agarwala, Gennaro Ciliberto, Sandra Demaria, Reinhard Dummer, Connie P M Duong, Soldano Ferrone, Silvia C Formenti, Claus Garbe, Ruth Halaban, Samir Khleif, Jason J Luke, Lluis M Mir, Willem W Overwijk, Michael Postow, Igor Puzanov, Paul Sondel, Janis M Taube, Per Thor Straten, David F Stroncek, Jennifer A Wargo, Hassane Zarour, Magdalena Thurin
Major advances have been made in the treatment of cancer with targeted therapy and immunotherapy; several FDA-approved agents with associated improvement of 1-year survival rates became available for stage IV melanoma patients. Before 2010, the 1-year survival were quite low, at 30%; in 2011, the rise to nearly 50% in the setting of treatment with Ipilimumab, and rise to 70% with BRAF inhibitor monotherapy in 2013 was observed. Even more impressive are 1-year survival rates considering combination strategies with both targeted therapy and immunotherapy, now exceeding 80%...
November 16, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/29114543/molecular-mechanisms-of-programmed-cell-death-1-dependent-t-cell-suppression-relevance-for-immunotherapy
#16
REVIEW
Miren Zuazo, Maria Gato-Cañas, Noelia Llorente, María Ibañez-Vea, Hugo Arasanz, Grazyna Kochan, David Escors
Programmed cell death-1 (PD1) has become a significant target for cancer immunotherapy. PD1 and its receptor programmed cell death 1 ligand 1 (PDL1) are key regulatory physiological immune checkpoints that maintain self-tolerance in the organism by regulating the degree of activation of T and B cells amongst other immune cell types. However, cancer cells take advantage of these immunosuppressive regulatory mechanisms to escape T and B cell-mediated immunity. PD1 engagement on T cells by PDL1 on the surface of cancer cells dramatically interferes with T cell activation and the acquisition of effector capacities...
October 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/29113841/immunotherapy-with-checkpoint-blockade-in-the-treatment-of-urothelial-carcinoma
#17
REVIEW
Arlene O Siefker-Radtke, Andrea B Apolo, Trinity J Bivalacqua, Philippe E Spiess, Peter C Black
PURPOSE: Although immunotherapy has a long history in the treatment of urothelial carcinoma, its use was limited to intravesical therapy for non-muscle-invasive disease. The development of immune checkpoint blockers for systemic delivery has expanded the application of immunotherapy to advanced metastatic urothelial cancers. MATERIALS AND METHODS: The PubMed database was searched for publications regarding immune checkpoint blockers for the treatment of patients with urothelial carcinoma...
November 4, 2017: Journal of Urology
https://www.readbyqxmd.com/read/29104763/cardiotoxicity-of-immune-checkpoint-inhibitors
#18
REVIEW
Gilda Varricchi, Maria Rosaria Galdiero, Giancarlo Marone, Gjada Criscuolo, Maria Triassi, Domenico Bonaduce, Gianni Marone, Carlo Gabriele Tocchetti
Cardiac toxicity after conventional antineoplastic drugs (eg, anthracyclines) has historically been a relevant issue. In addition, targeted therapies and biological molecules can also induce cardiotoxicity. Immune checkpoint inhibitors are a novel class of anticancer drugs, distinct from targeted or tumour type-specific therapies. Cancer immunotherapy with immune checkpoint blockers (ie, monoclonal antibodies targeting cytotoxic T lymphocyte-associated antigen 4 (CTLA-4), programmed cell death 1 (PD-1) and its ligand (PD-L1)) has revolutionised the management of a wide variety of malignancies endowed with poor prognosis...
2017: ESMO Open
https://www.readbyqxmd.com/read/29069302/mechanistic-overview-of-immune-checkpoints-to-support-the-rational-design-of-their-combinations-in-cancer-immunotherapy
#19
A Rotte, J Y Jin, V Lemaire
Checkpoint receptor blockers, known to act by blocking the pathways that inhibit immune cell activation and stimulate immune responses against tumor cells, have been immensely successful in the treatment of cancer. Among several checkpoint receptors of immune cells, cytotoxic T-lymphocyte-associated protein-4 (CTLA-4), programmed cell death protein-1 (PD-1), T-cell immunoglobulin and ITIM domain (TIGIT), T-cell immunoglobulin-3 (TIM-3) and lymphocyte activation gene 3 (LAG-3) are the most commonly targeted checkpoints for cancer immunotherapy...
October 24, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/29048660/canonical-and-non-canonical-wnt-signaling-in-cancer-stem-cells-and-their-niches-cellular-heterogeneity-omics-reprogramming-targeted-therapy-and-tumor-plasticity-review
#20
Masaru Katoh
Cancer stem cells (CSCs), which have the potential for self-renewal, differentiation and de-differentiation, undergo epigenetic, epithelial-mesenchymal, immunological and metabolic reprogramming to adapt to the tumor microenvironment and survive host defense or therapeutic insults. Intra-tumor heterogeneity and cancer-cell plasticity give rise to therapeutic resistance and recurrence through clonal replacement and reactivation of dormant CSCs, respectively. WNT signaling cascades cross-talk with the FGF, Notch, Hedgehog and TGFβ/BMP signaling cascades and regulate expression of functional CSC markers, such as CD44, CD133 (PROM1), EPCAM and LGR5 (GPR49)...
September 19, 2017: International Journal of Oncology
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