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Tumor associate antigen

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https://www.readbyqxmd.com/read/29456849/high-preoperative-glasgow-prognostic-score-is-a-negative-prognostic-factor-for-patients-with-endometrial-carcinoma
#1
Kohei Nakamura, Kentaro Nakayama, Toshiko Minamoto, Tomoka Ishibashi, Kaori Sanuki, Hitomi Yamashita, Ruriko Ono, Hiroki Sasamori, Takayoshi Komatsu-Fujii, Masako Ishikawa, Satoru Kyo
The aim of the present study was to determine the prognostic value of the Glasgow prognostic score (GPS) in endometrial carcinoma (EC). Patients with EC who underwent surgery at the Shimane University Hospital between January 1997 and December 2013 were enrolled (n=118). The associations between pretreatment GPS and clinical parameters, including age, histological type, International Federation of Gynecology and Obstetrics stage, tumor grade, carbohydrate antigen 19-9 and carcinoembryonic antigen levels, progression-free survival (PFS), and overall survival (OS), were investigated...
March 2018: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/29456740/an-obligatory-anaerobic-salmonella-typhimurium-strain-redirects-m2-macrophages-to-the-m1-phenotype
#2
Mei Yang, Juan Xu, Qi Wang, An-Qin Zhang, Kun Wang
A genetically engineered Salmonella typhimurium strain that may be applied in the medically useful therapeutic strategy of using bacterial agents to target breast cancer in a tumor-bearing nude mouse model has been previously reported. Furthermore, immune cell accumulation in breast tumor types has been observed, particularly distributed in regions surrounding the bacteria. M2 macrophages are associated with breast cancer aggressiveness, whereas M1 macrophages are prone to devouring bacteria and killing cancer cells...
March 2018: Oncology Letters
https://www.readbyqxmd.com/read/29456539/generation-of-human-immunosuppressive-myeloid-cell-populations-in-human-interleukin-6-transgenic-nog-mice
#3
Asami Hanazawa, Ryoji Ito, Ikumi Katano, Kenji Kawai, Motohito Goto, Hiroshi Suemizu, Yutaka Kawakami, Mamoru Ito, Takeshi Takahashi
The tumor microenvironment contains unique immune cells, termed myeloid-derived suppressor cells (MDSCs), and tumor-associated macrophages (TAMs) that suppress host anti-tumor immunity and promote tumor angiogenesis and metastasis. Although these cells are considered a key target of cancer immune therapy, in vivo animal models allowing differentiation of human immunosuppressive myeloid cells have yet to be established, hampering the development of novel cancer therapies. In this study, we established a novel humanized transgenic (Tg) mouse strain, human interleukin (hIL)-6-expressing NOG mice (NOG-hIL-6 transgenic mice)...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29456538/an-uncoupling-of-canonical-phenotypic-markers-and-functional-potency-of-ex-vivo-expanded-natural-killer-cells
#4
Nicole A P Lieberman, Kole DeGolier, Kristen Haberthur, Harrison Chinn, Kara W Moyes, Myriam N Bouchlaka, Kirsti L Walker, Christian M Capitini, Courtney A Crane
Recent advances in cellular therapies for patients with cancer, including checkpoint blockade and ex vivo -expanded, tumor-specific T cells, have demonstrated that targeting the immune system is a powerful approach to the elimination of tumor cells. Clinical efforts have also demonstrated limitations, however, including the potential for tumor cell antigenic drift and neoantigen formation, which promote tumor escape and recurrence, as well as rapid onset of T cell exhaustion in vivo . These findings suggest that antigen unrestricted cells, such as natural killer (NK) cells, may be beneficial for use as an alternative to or in combination with T cell based approaches...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29456158/autologous-ipsc-based-vaccines-elicit-anti-tumor-responses-in-vivo
#5
Nigel G Kooreman, Youngkyun Kim, Patricia E de Almeida, Vittavat Termglinchan, Sebastian Diecke, Ning-Yi Shao, Tzu-Tang Wei, Hyoju Yi, Devaveena Dey, Raman Nelakanti, Thomas P Brouwer, David T Paik, Idit Sagiv-Barfi, Arnold Han, Paul H A Quax, Jaap F Hamming, Ronald Levy, Mark M Davis, Joseph C Wu
Cancer cells and embryonic tissues share a number of cellular and molecular properties, suggesting that induced pluripotent stem cells (iPSCs) may be harnessed to elicit anti-tumor responses in cancer vaccines. RNA sequencing revealed that human and murine iPSCs express tumor-associated antigens, and we show here a proof of principle for using irradiated iPSCs in autologous anti-tumor vaccines. In a prophylactic setting, iPSC vaccines prevent tumor growth in syngeneic murine breast cancer, mesothelioma, and melanoma models...
February 8, 2018: Cell Stem Cell
https://www.readbyqxmd.com/read/29455841/actual-10-year-survival-after-hepatic-resection-of-colorectal-liver-metastases-what-factors-preclude-cure
#6
John M Creasy, Eran Sadot, Bas Groot Koerkamp, Joanne F Chou, Mithat Gonen, Nancy E Kemeny, Vinod P Balachandran, T Peter Kingham, Ronald P DeMatteo, Peter J Allen, Leslie H Blumgart, William R Jarnagin, Michael I D'Angelica
BACKGROUND: Hepatic resection of colorectal liver metastases is associated with long-term survival. This study analyzes actual 10-year survivors after resection of colorectal liver metastases, reports the observed rate of cure, and identifies factors that preclude cure. METHODS: A single-institution, prospectively maintained database was queried for all initial resections for colorectal liver metastases for the years 1992-2004. Observed cure was defined as actual 10-year survival with either no recurrence or resected recurrence with at least 3 years of disease-free follow-up...
February 15, 2018: Surgery
https://www.readbyqxmd.com/read/29455639/role-of-bruton-s-tyrosine-kinase-in-b-cells-and-malignancies
#7
REVIEW
Simar Pal Singh, Floris Dammeijer, Rudi W Hendriks
Bruton's tyrosine kinase (BTK) is a non-receptor kinase that plays a crucial role in oncogenic signaling that is critical for proliferation and survival of leukemic cells in many B cell malignancies. BTK was initially shown to be defective in the primary immunodeficiency X-linked agammaglobulinemia (XLA) and is essential both for B cell development and function of mature B cells. Shortly after its discovery, BTK was placed in the signal transduction pathway downstream of the B cell antigen receptor (BCR). More recently, small-molecule inhibitors of this kinase have shown excellent anti-tumor activity, first in animal models and subsequently in clinical studies...
February 19, 2018: Molecular Cancer
https://www.readbyqxmd.com/read/29455318/expression-of-terminal-deoxynucleotidyl-transferase-tdt-in-classical-seminoma-a-potential-diagnostic-pitfall
#8
Alexander Brobeil, Florian Wagenlehner, Stefan Gattenlöhner
Seminomas are the most frequent testicular tumors and in spite of specific markers some histological subtypes can be diagnostically challenging due to the potential overlap of morphologic features and a variant antigen expression. Terminal deoxynucleotidyl transferase (TdT) is a DNA polymerase present in hematogones, thymic T cells, lymphoblastic lymphoma/leukemia (LBL), and in some cases of acute myeloid leukemia but so far has not been described to be expressed in seminomas. After observing a reactivity of TdT in one case of seminoma, we analyzed ten additional tumors by immunohistochemistry to determine their spectrum of reactivity for TdT...
February 18, 2018: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/29454548/correlation-between-molecular-tumor-volume-evaluated-with-68-ga-psma-pet-ct-and-prostatic-specific-antigen-levels
#9
S Medina-Ornelas Sevastián, O García-Pérez Francisco, Y Hernández-Pedro Norma, E Arellano-Zarate Angélica, L Abúndiz-López Blanca
OBJECTIVE: To investigate the association between prostatic-specific antigen (PSA) levels and molecular tumor volume (MTV) measured in the68 Ga-PSMA PET/CT, both done in a short period of time, in prostate cancer patients with biochemical failure. METHODS: Eighty-four patients who underwent68 Ga-PSMA PET/CT and measurement of PSA levels in the same week (trigger-PSA) were studied in this retrospective analysis. MTV was calculated from the sum of the metastatic lesions...
February 14, 2018: Revista Española de Medicina Nuclear e Imagen Molecular
https://www.readbyqxmd.com/read/29454317/oxidative-damage-and-response-to-bacillus-calmette-gu%C3%A3-rin-in-bladder-cancer-cells-expressing-sialyltransferase-st3gal1
#10
Paulo F Severino, Mariana Silva, Mylene Carrascal, Nadia Malagolini, Mariella Chiricolo, Giulia Venturi, Roberto Barbaro Forleo, Annalisa Astolfi, Mariangela Catera, Paula A Videira, Fabio Dall'Olio
BACKGROUND: Treatment with Bacillus Calmette-Guérin (BCG) is the gold standard adjuvant immunotherapy of non-muscle invasive bladder cancer (NMIBC), although it fails in one third of the patients. NMIBC expresses two tumor-associated O-linked carbohydrates: the disaccharide (Galβ1,3GalNAc) Thomsen-Friedenreich (T) antigen, and its sialylated counterpart (Siaα2,3Galβ1,3GalNAc) sialyl-T (sT), synthesized by sialyltransferase ST3GAL1, whose roles in BCG response are unknown. METHODS: The human bladder cancer (BC) cell line HT1376 strongly expressing the T antigen, was retrovirally transduced with the ST3GAL1 cDNA or with an empty vector, yielding the cell lines HT1376sT and HT1376T , that express, respectively, either the sT or the T antigens...
February 17, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29453962/an-autoantibody-against-human-dna-topoiomerase-i-is-a-novel-biomarker-for-non-small-cell-lung-cancer
#11
Wen-Bin Wu, Shang-Mian Yie, Shang-Rong Ye, Ke Xie, Jian-Bo Zhang, Mei Cao, Jie Chen, Xu He, Xiao-Li Ma, Jia Zhang
BACKGROUND: We previously reported a novel tumor associated antigen with a molecular weight around 48 kDa that was a fragment derived from human DNA-topoiomerase I. The aim of this study is to further investigate the clinical significance of the autoantibody in patients with non-small cell lung cancer (NSCLC). METHODS: We determined serum levels of the autoantibody in 127 NSCLC patients, 127 age-, gender- and smoking history-matched healthy controls, and 38 patients with pulmonary benign tumors by using a specific enzyme linked immunosorbent assay (ELISA) for the autoantibody...
February 14, 2018: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/29450544/hla-class-i-antigen-expression-in-conjunctival-melanoma-is-not-associated-with-pd-l1-pd-1-status
#12
Jinfeng Cao, Niels J Brouwer, Ekaterina S Jordanova, Marina Marinkovic, Sjoerd G van Duinen, Nadine E de Waard, Bruce R Ksander, Arend Mulder, Frans H J Claas, Mirjam H M Heemskerk, Martine J Jager
Purpose: Antitumor T cells need expression of HLA class I molecules but can be inhibited by ligands such as programmed death ligand 1 (PD-L1). We determined expression and regulation of these molecules in human conjunctival melanoma (CM) samples, cell lines, and murine xenografts. Methods: Immunofluorescence staining was performed to examine the expression of HLA-A, HLA-B/C, and β-2-microglobulin (B2M) in 23 primary CM samples. HLA class I expression was compared with clinicopathologic characteristics, the presence of tumor-infiltrating leukocytes, and PD-L1/PD-1 status...
February 1, 2018: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29447987/escmid-study-group-for-infections-in-compromised-hosts-esgich-consensus-document-on-the-safety-of-targeted-and-biological-therapies-an-infectious-diseases-perspective-soluble-immune-effector-molecules-ii-agents-targeting-interleukins-immunoglobulins-and-complement
#13
REVIEW
Kevin L Winthrop, Xavier Mariette, Jose T Silva, Esther Benamu, Leonard H Calabrese, Alexandre Dumusc, Josef S Smolen, José María Aguado, Mario Fernández-Ruiz
BACKGROUND: The present review is part of the ESCMID Study Group for Infections in Compromised Hosts (ESGICH) Consensus Document on the safety of targeted and biological therapies. AIMS: To review, from an Infectious Diseases perspective, the safety profile of agents targeting interleukins, immunoglobulins and complement factors and to suggest preventive recommendations. SOURCES: Computer-based MEDLINE searches with MeSH terms pertaining to each agent or therapeutic family...
February 12, 2018: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/29447659/paraneoplastic-pemphigus-in-a-34-year-old
#14
Laura E Melnick, Jenna M Beasley, Randi Kim, Nooshin Brinster, Kristen Lo Sicco
Paraneoplastic Pemphigus (PNP) is a rare and often fatal autoimmune mucocutaneous blistering disease associated with an underlying malignancy. It is thought to be caused by antibodies to tumor antigenscross-reacting with epithelial antigens, specifically desmosomal and hemidesmosomal antigens. There are at least five clinical morphologic variants of PNP, with the earliest and most consistent finding beingsevere stomatitis. Diagnosis of PNP requires direct immunofluorescence of perilesional skin and indirect immunofluorescence...
December 15, 2017: Dermatology Online Journal
https://www.readbyqxmd.com/read/29440406/chimeric-antigen-receptor-t-cells-form-nonclassical-and-potent-immune-synapses-driving-rapid-cytotoxicity
#15
A J Davenport, R S Cross, K A Watson, Y Liao, W Shi, H M Prince, P A Beavis, J A Trapani, M H Kershaw, D S Ritchie, P K Darcy, P J Neeson, M R Jenkins
Chimeric antigen receptor T (CAR-T) cells are effective serial killers with a faster off-rate from dying tumor cells than CAR-T cells binding target cells through their T cell receptor (TCR). Here we explored the functional consequences of CAR-mediated signaling using a dual-specific CAR-T cell, where the same cell was triggered via TCR (tcrCTL) or CAR (carCTL). The carCTL immune synapse lacked distinct LFA-1 adhesion rings and was less reliant on LFA to form stable conjugates with target cells. carCTL receptors associated with the synapse were found to be disrupted and formed a convoluted multifocal pattern of Lck microclusters...
February 12, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29440380/comparative-transcriptome-analysis-reveals-distinct-genetic-modules-associated-with-helios-expression-in-intratumoral-regulatory-t-cells
#16
Kathleen Yates, Kevin Bi, W Nicholas Haining, Harvey Cantor, Hye-Jung Kim
Regulatory T cells (Tregs) are key modulators of immune tolerance, capable of suppressing inflammatory immune responses and promoting nonlymphoid tissue homeostasis. Helios, a transcription factor (TF) that is selectively expressed by Tregs, has been shown to be essential for the maintenance of Treg lineage stability in the face of inflammatory conditions that include autoimmune disease and cancer. Helios-deficient Tregs within tumors acquire effector T cell function and contribute to immune responses against cancer...
February 9, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29440175/pan-cancer-molecular-classes-transcending-tumor-lineage-across-32-cancer-types-multiple-data-platforms-and-over-10-000-cases
#17
Chad J Creighton, Fengju Chen, Yiqun Zhang, Don L Gibbons, Benjamin Deneen, David Kwiatkowski, Michael Ittmann
PURPOSE: The Cancer Genome Atlas data resources represent an opportunity to explore commonalities across cancer types involving multiple molecular levels, but tumor lineage and histology can represent a barrier in moving beyond differences related to cancer type. EXPERIMENTAL DESIGN: On the basis of gene expression data, we classified 10224 cancers, representing 32 major types, into ten molecular-based "classes."  Molecular patterns representing tissue or histologic dominant effects were first removed computationally, with the resulting classes representing emergent themes across tumor lineages...
February 9, 2018: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/29438676/stress-induced-cellular-responses-in-immunogenic-cell-death-implications-for-cancer-immunotherapy
#18
REVIEW
Flavia Radogna, Marc Diederich
Cancer is evading the host's defense mechanisms leading to avoidance of immune destruction. During tumor progression, immune-evading cancer cells arise due to selective pressure from the hypoxic and nutrient-deprived microenvironment. Thus, therapies aiming at re-establishing immune destruction of pathological cells constitute innovating anti-cancer strategies. Accumulating evidence suggests that selected conventional chemotherapeutic drugs increase the immunogenicity of stressed and dying cancer cells by triggering a form of cell death called immunogenic cell death (ICD), which is characterized by the release of danger-associated molecular patterns (DAMPs)...
February 10, 2018: Biochemical Pharmacology
https://www.readbyqxmd.com/read/29437789/targeted-bite-expression-by-an-oncolytic-vector-augments-therapeutic-efficacy-against-solid-tumors
#19
Tobias Speck, Johannes Pw Heidbuechel, Rūta Veinalde, Dirk Jaeger, Christof von Kalle, Claudia R Ball, Guy Ungerechts, Christine E Engeland
PURPOSE: Immunotherapy with bispecific T cell engagers has achieved striking success against hematological malignancies, but efficacy against solid tumors has been limited. We hypothesized that oncolytic measles viruses encoding bispecific T cell engagers (MV-BiTEs) represent a safe and effective treatment against solid tumors through local BiTE expression, direct tumor cell lysis and in situ tumor vaccination. EXPERIMENTAL DESIGN: To test this hypothesis, we generated MV-BiTEs from the Edmonston B vaccine strain to target two model antigens...
February 6, 2018: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/29436609/enhancement-of-malignant-properties-of-human-glioma-cells-by-ganglioside-gd3-gd2
#20
Taiji Iwasawa, Pu Zhang, Yuki Ohkawa, Hiroyuki Momota, Toshihiko Wakabayashi, Yuhsuke Ohmi, Robiul H Bhuiyan, Keiko Furukawa, Koichi Furukawa
Sialic acid-containing glycosphingolipids, gangliosides, are considered as cancer associated antigens in neuro-ectoderm-derived tumors such as melanomas and neuroblastomas. In particular, gangliosides GD3 and GD2 are expressed in human gliomas. It has been reported that their expression levels increase along with increased malignant properties. However, the implication of GD3/GD2 in human glioma cells has never been clarified, at least to the best of our knowledge. In this study, we introduced the cDNA of GD3 synthase (GD3S)(ST8SIA1) into a glioma cell line, U-251MG, that expresses neither GD3 nor GD2, thereby establishing transfectant cells U-251MG-GD3S(+) expressing high levels of GD3 and GD2 on the cell surface...
February 7, 2018: International Journal of Oncology
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