keyword
MENU ▼
Read by QxMD icon Read
search

Tumor immune recognition

keyword
https://www.readbyqxmd.com/read/28720900/low-frequency-ultrasound-induced-vegf-suppression-and-synergy-with-dendritic-cell-mediated-anti-tumor-immunity-in-murine-prostate-cancer-cells-in-vitro
#1
Wei Zhang, Wen-De Shou, Yan-Jun Xu, Wen-Kun Bai, Bing Hu
High tumor vascular endothelial growth factor (VEGF) levels are associated with poor treatment outcomes in prostate cancer (PCa), and immune deficiency in the PCa microenvironment, especially suppression of dendritic cell (DC) proliferation, has been confirmed. In this study, we (1) investigated whether VEGF participates in DC suppression in murine PCa cells (RM-1), (2) down-regulated VEGF expression using low-frequency ultrasound and microbubbles (UM), and (3) further explored any synergistic effect on immunological activation...
July 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28713780/tumor-targeting-by-fusobacterium-nucleatum-a-pilot-study-and-future-perspectives
#2
Jawad Abed, Naseem Maalouf, Lishay Parhi, Stella Chaushu, Ofer Mandelboim, Gilad Bachrach
Colorectal adenocarcinoma (CRC) is a common tumor with high mortality rates. Interestingly, CRC was found to be colonized by the oral anaerobic bacteria Fusobacterium nucleatum, which accelerates tumor progression and enables immune evasion. The CRC-specific colonization by fusobacteria is mediated through the recognition of tumor displayed Gal-GalNAc moieties by the fusobacterial Fap2 Gal-GalNAc lectin. Here, we show high Gal-GalNAc levels in additional adenocarcinomas including those found in the stomach, prostate, ovary, colon, uterus, pancreas, breast, lung, and esophagus...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28712863/harnessing-the-cd1-restricted-t-cell-response-for-leukemia-adoptive-immunotherapy
#3
Michela Consonni, Claudia de Lalla, Alessandra Bigi, Paolo Dellabona, Giulia Casorati
Disease recurrence following chemotherapy and allogeneic hematopoietic cell transplantation is the major unmet clinical need of acute leukemia. Adoptive cell therapy (ACT) with allogeneic T lymphocytes can control recurrences at the cost of inducing detrimental GVHD. Targeting T cell recognition on leukemia cells is therefore needed to overcome the problem and ensure safe and durable disease remission. In this review, we discuss adoptive cells therapy based on CD1-restricted T cells specific for tumor associated self-lipid antigens...
July 8, 2017: Cytokine & Growth Factor Reviews
https://www.readbyqxmd.com/read/28709825/the-ambiguous-role-of-%C3%AE-%C3%AE-t-lymphocytes-in-antitumor-immunity
#4
REVIEW
Guranda Chitadze, Hans-Heinrich Oberg, Daniela Wesch, Dieter Kabelitz
γδ T cells play a role in immune surveillance because they recognize stress-induced surface molecules and metabolic intermediates that are frequently dysregulated in transformed cells. Hence, γδ T cells have attracted much interest as effector cells in cell-based immunotherapy. Recently, however, it has been realized that γδ T cells can also promote tumorigenesis through various mechanisms including regulatory activity and IL-17 production. In this review we outline both the pathways involved in cancer cell recognition and killing by γδ T cells as well as current evidence for their protumorigenic activity in various models...
July 11, 2017: Trends in Immunology
https://www.readbyqxmd.com/read/28709002/exosome-rna-unshielding-couples-stromal-activation-to-pattern-recognition-receptor-signaling-in-cancer
#5
Barzin Y Nabet, Yu Qiu, Jacob E Shabason, Tony J Wu, Taewon Yoon, Brian C Kim, Joseph L Benci, Angela M DeMichele, Julia Tchou, Joseph Marcotrigiano, Andy J Minn
Interactions between stromal fibroblasts and cancer cells generate signals for cancer progression, therapy resistance, and inflammatory responses. Although endogenous RNAs acting as damage-associated molecular patterns (DAMPs) for pattern recognition receptors (PRRs) may represent one such signal, these RNAs must remain unrecognized under non-pathological conditions. We show that triggering of stromal NOTCH-MYC by breast cancer cells results in a POL3-driven increase in RN7SL1, an endogenous RNA normally shielded by RNA binding proteins SRP9/14...
July 13, 2017: Cell
https://www.readbyqxmd.com/read/28706158/significant-benefit-of-nivolumab-treating-pd-l1-positive-metastatic-pulmonary-carcinosarcoma-a-case-report-and-literature-review
#6
Zhe Zhang, Yishan Chen, Mingxia Ma, Junli Hao, Rui Ding, Lixin Han, Jiayun Zou, Lina Zhang, Qin Meng, Xiujuan Qu, Yunpeng Liu, Mingfang Zhao
Immunotherapy has recently become a new focus for the treatment of malignant tumors following the surgery, chemotherapy, radiotherapy, and molecular targeted therapy. Nivolumab, a human monoclonal antibody, is the first programmed cell death protein-1 (PD-1) inhibitor, which can prohibit the interaction of its ligand (PD-L1), restoring the immune response of T cells, and enhancing the recognition of tumor cells by the immune system.Pulmonary Carcinosarcoma is an uncommon but highly aggressive tumor type with a poor prognosis...
July 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28704956/rapid-and-direct-vhh-and-target-identification-by-staphylococcal-surface-display-libraries
#7
Marco Cavallari
Unbiased and simultaneous identification of a specific antibody and its target antigen has been difficult without prior knowledge of at least one interaction partner. Immunization with complex mixtures of antigens such as whole organisms and tissue extracts including tumoral ones evokes a highly diverse immune response. During such a response, antibodies are generated against a variety of epitopes in the mixture. Here, we propose a surface display design that is suited to simultaneously identify camelid single domain antibodies and their targets...
July 12, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28699110/immune-selection-during-tumor-checkpoint-inhibition-therapy-paves-way-for-nk-cell-missing-self-recognition
#8
REVIEW
Karl-Johan Malmberg, Ebba Sohlberg, Jodie P Goodridge, Hans-Gustaf Ljunggren
The ability of NK cells to specifically recognize cells lacking expression of self-MHC class I molecules was discovered over 30 years ago. It provided the foundation for the "missing self" hypothesis. Research in the two past decades has contributed to a detailed understanding of the molecular mechanisms that determine the specificity and strength of NK cell-mediated "missing self" responses to tumor cells. However, in light of the recent remarkable breakthroughs in clinical cancer immunotherapy, the cytolytic potential of NK cells still remains largely untapped in clinical settings...
July 11, 2017: Immunogenetics
https://www.readbyqxmd.com/read/28696685/modeling-sequence-dependent-peptide-fluctuations-in-immunologic-recognition
#9
Cory M Ayres, Timothy P Riley, Steven A Corcelli, Brian M Baker
In cellular immunity, T cells recognize peptide antigens bound and presented by major histocompatibility complex (MHC) proteins. The motions of peptides bound to MHC play a significant role in determining immunogenicity. However, existing approaches for investigating peptide/MHC motional dynamics are challenging or of low throughput, hindering the development of algorithms for predicting immunogenicity from large databases, such as those of tumor or genetically unstable viral genomes. We addressed this by performing exhaustive molecular dynamics simulations on a large structural database of peptides bound to the most commonly expressed human class I MHC protein, HLA-A*0201...
July 11, 2017: Journal of Chemical Information and Modeling
https://www.readbyqxmd.com/read/28693196/early-diagnosis-of-venous-thromboembolism-as-a-clinical-primary-symptom-of-occult-cancer-core-proteins-of-a-venous-thrombus
#10
Siwan Wen, Qianglin Duan, Fan Yang, Guiyuan Li, Lemin Wang
Malignancy is one of the risk factors of venous thromboembolism (VTE). As a common accompanying factor of malignant tumors, almost 20% of idiopathic VTEs are identified in patients with occult types of cancer as the primary symptom. The type of internal association that exists between malignant tumors and VTE has not yet been determined. The present review discusses the following: i) Reversible combinations between core proteins of venous thrombi and their ligand proteins. With the condition of immune cell balancing function collapse, which is characterized as dysfunction immune cells and impaired immune functions, the human body loses the function of eliminating infectious/malignant cells quickly and effectively...
July 2017: Oncology Letters
https://www.readbyqxmd.com/read/28684637/interferon-stimulated-genes-are-transcriptionally-repressed-by-pr-in-breast-cancer
#11
Katherine Walter, Merit L Goodman, Hari Singhal, Jade Hall, Tianbao Li, Sean Holloran, Gloria Trinca, Katelin Gibson, Victor X Jin, Geoffrey Greene, Christy Hagan
The progesterone receptor (PR) regulates transcriptional programs that drive proliferation, survival, and stem cell phenotypes. Although the role of native progesterone in the development of breast cancer remains controversial, PR clearly alters the transcriptome in breast tumors. This study identifies a class of genes, interferon-stimulated genes (ISGs), potently downregulated by ligand-activated PR which have not been previously shown to be regulated by PR. Progestin-dependent transcriptional repression of ISGs was observed in breast cancer cell line models and human breast tumors...
July 6, 2017: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/28675562/innate-and-adaptive-immunity-in-human-epilepsies
#12
Jan Bauer, Albert J Becker, Wassim Elyaman, Jukka Peltola, Stephan Rüegg, Maarten J Titulaer, James A Varley, Ettore Beghi
Inflammatory mechanisms have been increasingly implicated in the origin of seizures and epilepsy. These mechanisms are involved in the genesis of encephalitides in which seizures are a common complaint. Experimental and clinical evidence suggests different inflammatory responses in the brains of patients with epilepsy depending on the etiology. In general, activation of both innate and adaptive immunity plays a role in refractory forms of epilepsy. Epilepsies in which seizures develop after infiltration of cells of the adaptive immune system in the central nervous system (CNS) include a broad range of epileptic disorders with different (known or unknown) etiologies...
July 2017: Epilepsia
https://www.readbyqxmd.com/read/28674499/phytochemicals-approach-for-developing-cancer-immunotherapeutics
#13
REVIEW
Shu-Yi Yin, Ning-Sun Yang, Tien-Jen Lin
Phytochemicals or their derived compounds are being increasingly recognized as potentially potent complementary treatments for cancer. Among them, some phytochemicals are being actively evaluated for use as adjuvants in anticancer therapies. For instance, shikonin and hypericin were found to induce immunogenic cell death of specific cancer cells, and this effect was able to further activate the recognition activity of tumor cells by the host immune system. On the other hand, some derivatives of phytochemicals, such as dihydrobenzofuran lignan (Q2-3) have been found to induce the secretion of an endogenous anticancer factor, namely IL-25, from non-malignant cells...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28674083/combining-local-immunotoxins-targeting-mesothelin-with-ctla-4-blockade-synergistically-eradicates-murine-cancer-by-promoting-anti-cancer-immunity
#14
Yasmin Leshem, James O'Brien, Xiufen Liu, Tapan K Bera, Masaki Terabe, Jay A Berzofsky, Birgit Bossenmaier, Gerhard Niederfellner, Chin-Hsien Tai, Yoram Reiter, Ira Pastan
Immune checkpoint blockade using antibodies to cytotoxic T-lymphocyte-associated antigen 4 (CTLA-4) benefits a limited number of cancer patients. SS1P and LMB-100 are immunotoxins that target mesothelin. We observed delayed responses to SS1P in patients with mesothelioma suggesting that anti-tumor immunity was induced. Our goal was to stimulate anti-tumor immunity by combining SS1P or LMB-100 with anti-CTLA-4. We constructed a BALB/c breast cancer cell line expressing human mesothelin (66C14-M) which was implanted in one or two locations...
July 3, 2017: Cancer Immunology Research
https://www.readbyqxmd.com/read/28673381/biomarkers-of-necrotising-soft-tissue-infections-aspects-of-the-innate-immune-response
#15
Marco Bo Hansen
Necrotising soft tissue infection (NSTI) is a life-threatening and rapidly progressing bacterial infection involving one or more layers of the soft tissue compartments causing necrosis. The amputation and mortality rates remain high despite increased focus on the patients. Timely treatment, including surgical intervention, reduces the risk of severe disability and death. However, the lack of pathognomonic signs impedes early diagnosis and treatment. Moreover, the rarity of the disease makes it difficult to conduct large prospective studies, thus prospective research is almost non-existent in this group of patients...
July 2017: Danish Medical Journal
https://www.readbyqxmd.com/read/28670716/adoptive-transfer-of-murine-t-cells-expressing-a-chimeric-pd1-dap10-receptor-as-an-immunotherapy-for-lymphoma
#16
Adam Lynch, William Hawk, Emily Nylen, Sean Ober, Pierre Autin, Amorette Barber
Adoptive transfer of T cells is a promising cancer therapy and expression of chimeric antigen receptors can enhance tumor recognition and T cell effector functions. The PD1 receptor is a prospective target for a chimeric antigen receptor because PD1 ligands are expressed on many cancer types, including lymphoma. Therefore, we developed a murine chimeric PD1 receptor (chPD1) consisting of the PD1 extracellular domain fused to the cytoplasmic domain of CD3 zeta. Additionally, chimeric antigen receptor therapies utilize various costimulatory domains to enhance efficacy...
July 3, 2017: Immunology
https://www.readbyqxmd.com/read/28669815/immuno-proteomic-discovery-of-tumor-tissue-autoantigens-identifies-olfactomedin-4-cd11b-and-integrin-alpha-2-as-markers-of-colorectal-cancer-with-liver-metastases
#17
Qian Yang, Prashant Bavi, Julia Y Wang, Michael H Roehrl
Late-stage colorectal cancer with liver metastasis is common and affords poor prognosis, yet there is a dearth of reliable biomarkers. Cancer is often characterized by an increase in serologic autoantibodies. Hence, we embarked on an immuno-proteomic strategy by using autoantibodies to discover antigens in tumor tissue as potential cancer markers. Matched sets of tissues from primary colon cancer, liver metastases, and adjacent benign tissues were obtained from colon cancer patients. Tissue proteins were extracted, and autoantigens were uncovered by immunoblotting with autoantibodies and sequenced by mass spectrometry...
June 29, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28665401/pd-l1-and-iaps-co-operate-to-protect-tumors-from-cytotoxic-lymphocyte-derived-tnf
#18
Conor J Kearney, Najoua Lalaoui, Andrew J Freeman, Kelly M Ramsbottom, John Silke, Jane Oliaro
Smac-mimetics are emerging as promising anti-cancer agents and are being evaluated in clinical trials for a variety of malignancies. Smac-mimetics can induce TNF production from a subset of tumor cells and simultaneously sensitize them to TNF-induced apoptosis. However, TNF derived from other cellular sources, such as cytotoxic lymphocytes (CLs) within the tumor, may also contribute to the anti-tumor activity of SMs. Here, we show that CD8(+) T cells and NK cells potently kill tumor cells in the presence of the SM, birinapant...
June 30, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28655789/acquired-immune-resistance-follows-complete-tumor-regression-without-loss-of-target-antigens-or-ifn-%C3%AE-signaling
#19
Marco Donia, Katja Harbst, Marit Van Buuren, P Kvistborg, Mattias F Lindberg, Rikke Andersen, Manja Idorn, Shamaila Munir, Eva Ellebaek, Anja Mueller, Paolo Fagone, Ferdinando Nicoletti, Massimo Libra, Martin Lauss, Sine Reker Hadrup, Henrik Schmidt, Mads Hald Andersen, Per Thor Straten, Jonas A Nilsson, Ton N Schumacher, Barbara Seliger, Göran Jönsson, Inge Marie Svane
Cancer immunotherapy can result in durable tumor regressions in some patients. However, patients who initially respond often experience tumor progression. Here we report mechanistic evidence of tumoral immune escape in an exemplary clinical case: a patient with metastatic melanoma who developed disease recurrence following an initial, unequivocal radiologic complete regression after T cell-based immunotherapy. Functional cytotoxic T cell responses, including responses to one mutant neo-antigen, were amplified effectively with therapy and generated durable immunological memory...
June 27, 2017: Cancer Research
https://www.readbyqxmd.com/read/28649246/redirected-primary-human-chimeric-antigen-receptor-natural-killer-cells-as-an-off-the-shelf-immunotherapy-for-improvement-in-cancer-treatment
#20
REVIEW
Olaf Oberschmidt, Stephan Kloess, Ulrike Koehl
Primary human natural killer (NK) cells recognize and subsequently eliminate virus infected cells, tumor cells, or other aberrant cells. However, cancer cells are able to develop tumor immune escape mechanisms to undermine this immune control. To overcome this obstacle, NK cells can be genetically modified to express chimeric antigen receptors (CARs) in order to improve specific recognition of cancer surface markers (e.g., CD19, CD20, and ErbB2). After target recognition, intracellular CAR domain signaling (CD3ζ, CD28, 4-1BB, and 2B4) leads to activation of PI3K or DNAX proteins (DAP10, DAP12) and finally to enhanced cytotoxicity, proliferation, and/or interferon γ release...
2017: Frontiers in Immunology
keyword
keyword
44729
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"