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Tumor associate antigen

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https://www.readbyqxmd.com/read/29036791/globo-h-expression-is-associated-with-driver-mutations-and-pd-l1-expressions-in-stage-i-non-small-cell-lung-cancer
#1
Ching-Yao Yang, Mong-Wei Lin, Yih-Leong Chang, Chen-Tu Wu
BACKGROUND: Globo H is a tumor-associated carbohydrate antigen exclusively expressed in cancer cells rather than normal tissue. Globo H has been found on many cancers of epithelial origins, and become an attractive target for cancer vaccine. OBJECTIVES: We aimed to study the expression of Globo H in non-small cell lung cancer (NSCLC) patients, and correlated its expression with common driver mutations, clinical outcomes, and status of immune checkpoint, programmed death-ligand 1 (PD-L1)...
September 29, 2017: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/29036034/investigation-of-association-between-borderline-pancreatic-head-cancer-and-glucose-uptake-by-using-positron-emission-tomographic-studies
#2
Ying Zhang, Lei Qin, Changming Zhang
BACKGROUND In the background of the well-known importance of positron-emission tomographic studies (PET) in the prediction of pancreatic oncologic problems, we designed and performed this investigation to study the link between borderline pancreatic head cancer and glucose uptake by using PET. MATERIAL AND METHODS We retrospectively investigated patients during the period of almost 4 years (May 2013 to December 2016). Patients underwent potentially curative resection for borderline exocrine pancreatic head adenocarcinoma without undergoing neoadjuvant therapy...
October 16, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29034994/risk-factors-of-lymph-node-metastasis-in-patients-with-non-small-cell-lung-cancer-%C3%A2-2%C3%A2-cm-in-size-a-monocentric-population-based-analysis
#3
Xiyan Yu, Yanwen Li, Chunlei Shi, Baohui Han
AIM: This study was designed to determine the risk factors of lymph node metastasis in non-small cell lung cancer (NSCLC) patients with tumors ≤ 2 cm, using the Shanghai Chest Hospital Lung Cancer Database. METHODS: Five hundred and eighteen patients with NSCLC ≤ 2 cm were included in this study, and were classified into lymph node-positive and lymph node-negative groups. Univariate and multivariate logistic regression analyses were performed to select the independent risk factors for lymph node metastasis in NSCLC patients...
October 16, 2017: Thoracic Cancer
https://www.readbyqxmd.com/read/29034816/clinical-performance-of-loci%C3%A2-based-tumor-marker-assays-for-tumor-markers-ca-15-3-ca-125-cea-ca-19-9-and-afp-in-gynecological-cancers
#4
Ramona C Dolscheid-Pommerich, Mignon Keyver-Paik, Thomas Hecking, Walther Kuhn, Gunther Hartmann, Birgit Stoffel-Wagner, Stefan Holdenrieder
Evidence is sparse regarding the clinical performance of luminescent oxygen channeling immunoassays-based tumor marker assays in gynecological cancer. Analyzing serum samples of 336 patients with Dimension™Vista1500, we investigated the diagnostic power of carbohydrate antigen 15-3, carbohydrate antigen 125, carcinoembryonic antigen, carbohydrate antigen 19-9, and alpha-fetoprotein in patients suffering from different types of gynecological cancer and precancerous gynecological diseases and compared findings to appropriate control groups...
October 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/29034589/involvement-of-local-renin-angiotensin-system-in-immunosuppression-of-tumor-microenvironment
#5
Kenta Nakamura, Tomonori Yaguchi, Gaku Ohmura, Asuka Kobayashi, Naoshi Kawamura, Takashi Iwata, Yukiko Kiniwa, Ryuhei Okuyama, Yutaka Kawakami
To improve the current cancer immunotherapies, strategies to modulate various immunosuppressive cells including myeloid derived suppressor cells (MDSCs) which were shown to be negative factors in the immune-checkpoint blockade therapy, need to be developed. In this study, we have evaluated the role of local renin-angiotensin system (RAS) in the tumor immune-microenvironment using murine models bearing tumor cell lines in which RAS was not involved in their proliferation and angiogenetic ability. Administration of angiotensin II receptor blockers (ARBs) to C57BL/6 mice bearing murine colon cancer cell line MC38 resulted in significant enhancement of tumor antigen gp70 specific T cells...
October 16, 2017: Cancer Science
https://www.readbyqxmd.com/read/29034543/pd-l1-expression-is-mainly-regulated-by-ifn-%C3%AE-associated-with-jak-stat-pathway-in-gastric-cancer
#6
Kousaku Mimura, Jun Liang Teh, Hirokazu Okayama, Kensuke Shiraishi, Ley-Fang Kua, Vivien Koh, Duane T Smoot, Hassan Ashktorab, Takahiro Oike, Yoshiyuki Suzuki, Zul Fazreen, Bernadette R Asuncion, Asim Shabbir, Wei-Peng Yong, Jimmy So, Richie Soong, Koji Kono
Despite multidisciplinary treatment for patients with advanced gastric cancer, their prognosis still remains poor. Therefore, the development of novel therapeutic strategies is urgently needed, and immunotherapy utilizing anti-programmed death 1/-programmed death ligand-1 mAb is an attractive approach. However, as there is limited information on how programmed death ligand-1 is upregulated on tumor cells within the tumor microenvironment, we examined the mechanism of programmed death ligand-1 regulation with a particular focus on interferon gamma in in-vitro setting and in clinical samples...
October 16, 2017: Cancer Science
https://www.readbyqxmd.com/read/29033776/carbohydrate-antigen-19-9-positive-gastric-adenocarcinoma-autopsy-findings-and-review-of-the-literature
#7
Tan Wang, Yoko Matsuda, Atsuko Seki, Keisuke Nonaka, Mototsune Kakizaki, Daita Kaneda, Junko Takahashi-Fujigasaki, Shigeo Murayama, Tomio Arai
Carbohydrate antigen 19-9 (CA19-9) is a well-known tumor marker for pancreatobiliary cancer, and several studies have shown that an elevated serum CA19-9 level is associated with more aggressive biological behavior in gastric cancer (GC). However, the clinicopathological characteristics of CA19-9-positive GC remain unclear. We herein report an autopsy case of CA19-9-positive GC in an 84-year-old man who was admitted to our hospital because of paralysis and anemia. Autopsy revealed an ulcerative-invasive tumor measuring 72 × 60 mm in the anterior wall of the gastric body...
September 2017: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/29033422/a-case-of-hepatic-pseudolymphoma-with-an-occult-hepatitis-b-virus-infection
#8
Hideo Kunimoto, Daisuke Morihara, Shin-Ichiro Nakane, Takashi Tanaka, Keiji Yokoyama, Akira Anan, Yasuaki Takeyama, Makoto Irie, Satoshi Shakado, Tomoaki Noritomi, Morishige Takeshita, Kengo Yoshimitsu, Shotaro Sakisaka
A 49-year-old woman who was asymptomatic was found to have a small liver tumor on abdominal ultrasonography (US) at her annual health checkup. US revealed a hypoechoic, solid, mass measuring 17-mm in size in segment 6. The tumor markers associated with liver malignancy were negative. An infectious disease screen was negative for hepatitis B surface antigen, but positive for antibody to hepatitis B core antigen. Imaging studies using computed tomography (CT), magnetic resonance imaging (MRI), and CT angiography suggested a malignant liver tumor, such as hepatocellular carcinoma...
October 16, 2017: Internal Medicine
https://www.readbyqxmd.com/read/29032985/damp-tlr-cytokine-axis-dictates-the-fate-of-tumor
#9
REVIEW
Ashok Patidar, Sathishkumar Selvaraj, Aditya Sarode, Prashant Chauhan, Debprasad Chattopadhyay, Bhaskar Saha
Random mutations leading to loss of cell cycle control is not a rare occurrence in an organism but the mutated cells are recognized and eliminated preventing the development of a tumor. These potentially tumorigenic cells release damage-associated molecular patterns (DAMPs), which are recognized by toll-like receptors (TLRs) on macrophages and dendritic cells. The initial TLR-DAMP interactions lead to different responses such as altered antigen presentation and cytokine release that directly affect T cell activation and removal of the tumorigenic cells...
October 9, 2017: Cytokine
https://www.readbyqxmd.com/read/29032274/assessment-of-impact-of-human-leukocyte-antigen-hla-type-on-outcomes-of-allogeneic-hematopoietic-stem-cell-transplant-for-chronic-lymphocytic-leukemia-cll
#10
Brian T Hill, Kwang Woo Ahn, Zhen-Huan Hu, Mahmoud Aljurf, Amer Beitinjaneh, Jean-Yves Cahn, Jan Cerny, Mohamed A Kharfan-Dabaja, Siddhartha Ganguly, Nilanjan Ghosh, Michael R Grunwald, Yoshihiro Inamoto, Tamila Kindwall-Keller, Taiga Nishihori, Richard F Olsson, Ayman Saad, Matthew Seftel, Sachiko Seo, Jeffrey Szer, Martin Tallman, Celalettin Ustun, Peter H Wiernik, Richard T Maziarz, Matt Kalaycio, Edwin Alyea, Uday Popat, Ronald Sobecks, Wael Saber
Chronic lymphocytic leukemia (CLL) is a common hematologic malignancy with many highly effective therapies. Chemorefractory disease, often characterized by deletion of chromosome 17p, has historically been associated with very poor outcomes, leading to the application of allogeneic hematopoietic stem cell transplant (allo-HCT) for medically fit patients. Although the use of allo-HCT has reduced since the introduction of novel targeted therapy for the treatment of CLL, there remains significant interest in understanding factors that may influence the efficacy of allo-HCT as it represents the only known curative treatment for CLL...
October 12, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/29031828/non-progressing-cancer-patients-have-persistent-b-cell-responses-expressing-shared-antibody-paratopes-that-target-public-tumor-antigens
#11
Jeff DeFalco, Michael Harbell, Amy Manning-Bog, Gilson Baia, Alexander Scholz, Beatriz Millare, May Sumi, Danhui Zhang, Felix Chu, Christine Dowd, Patricia Zuno-Mitchell, Dongkyoon Kim, Yvonne Leung, Shuwei Jiang, Xiaobin Tang, Kevin S Williamson, Xiaomu Chen, Sean M Carroll, Gregg Espiritu Santo, Nicole Haaser, Ngan Nguyen, Eldar Giladi, David Minor, Yann Chong Tan, Jeremy B Sokolove, Lawrence Steinman, Tito A Serafini, Guy Cavet, Norman M Greenberg, Jacob Glanville, Wayne Volkmuth, Daniel E Emerling, William H Robinson
There is significant debate regarding whether B cells and their antibodies contribute to effective anti-cancer immune responses. Here we show that patients with metastatic but non-progressing melanoma, lung adenocarcinoma, or renal cell carcinoma exhibited increased levels of blood plasmablasts. We used a cell-barcoding technology to sequence their plasmablast antibody repertoires, revealing clonal families of affinity matured B cells that exhibit progressive class switching and persistence over time. Anti-CTLA4 and other treatments were associated with further increases in somatic hypermutation and clonal family size...
October 11, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/29030683/preoperative-alkaline-phosphatase-elevation-was-associated-with-poor-survival-in-colorectal-cancer-patients
#12
Hsin-Yuan Hung, Jinn-Shiun Chen, Chien-YuhYeh, Reiping Tang, Pao-Shiu Hsieh, Wen-SyTasi, Yau-Tong You, Jeng-Fu You, Jy-Ming Chiang
PURPOSE: Purpose To assess preoperative serum alkaline phosphatase (ALP) levels in colon adenocarcinomapatients with various clinical features and determine its prognostic value. METHODS: Between 2000 and 2013, 10,800 stage I-IV colon cancer patients who underwent surgery wereretrospectively enrolled. The relationship between ALP level and variables, including age, gender,carcinoembryonic Antigen (CEA) levels, aspartate aminotransferase (AST) level, bilirubin level, tumor size,liver cirrhosis, hepatitis, albumin level, histological type, and TNM-stage, were evaluated...
October 13, 2017: International Journal of Colorectal Disease
https://www.readbyqxmd.com/read/29029482/in-vivo-immuno-targeting-of-an-extracellular-epitope-of-membrane-bound-preferentially-expressed-antigen-in-melanoma-prame
#13
Dmitry Pankov, Ludvig Sjöström, Teja Kalidindi, Sang-Gyu Lee, Kjell Sjöström, Rui Gardner, Michael R McDevitt, Richard O'Reilly, Daniel L J Thorek, Steven M Larson, Darren Veach, David Ulmert
Preferentially Expressed Antigen in Melanoma (PRAME) is a cancer/testis antigen that is overexpressed in a broad range of malignancies, while absent in most healthy human tissues, making it an attractive diagnostic cancer biomarker and therapeutic target. Although commonly viewed as an intracellular protein, we have demonstrated that PRAME has a membrane bound form with an external epitope targetable with conventional antibodies. We generated a polyclonal antibody (Membrane associated PRAME Antibody 1, MPA1) against an extracellular peptide sequence of PRAME...
September 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/29029417/anti-tumor-activity-of-anthrax-toxin-variants-that-form-a-functional-translocation-pore-by-intermolecular-complementation
#14
Shihui Liu, Qian Ma, Rasem Fattah, Thomas H Bugge, Stephen H Leppla
Anthrax lethal toxin is a typical A-B type protein toxin secreted by Bacillus anthracis. Lethal factor (LF) is the catalytic A-subunit, a metalloprotease having MEKs as targets. LF relies on the cell-binding B-subunit, protective antigen (PA), to gain entry into the cytosol of target cells. PA binds to cell surface toxin receptors and is activated by furin protease to form an LF-binding-competent oligomer-PA pre-pore, which converts to a functional protein-conductive pore in the acidic endocytic vesicles, allowing translocation of LF into the cytosol...
September 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/29028833/merkel-cell-polyomavirus-recruits-mycl-to-the-ep400-complex-to-promote-oncogenesis
#15
Jingwei Cheng, Donglim Esther Park, Christian Berrios, Elizabeth A White, Reety Arora, Rosa Yoon, Timothy Branigan, Tengfei Xiao, Thomas Westerling, Alexander Federation, Rhamy Zeid, Benjamin Strober, Selene K Swanson, Laurence Florens, James E Bradner, Myles Brown, Peter M Howley, Megha Padi, Michael P Washburn, James A DeCaprio
Merkel cell carcinoma (MCC) frequently contains integrated copies of Merkel cell polyomavirus DNA that express a truncated form of Large T antigen (LT) and an intact Small T antigen (ST). While LT binds RB and inactivates its tumor suppressor function, it is less clear how ST contributes to MCC tumorigenesis. Here we show that ST binds specifically to the MYC homolog MYCL (L-MYC) and recruits it to the 15-component EP400 histone acetyltransferase and chromatin remodeling complex. We performed a large-scale immunoprecipitation for ST and identified co-precipitating proteins by mass spectrometry...
October 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/29028099/the-diagnostic-value-of-determination-of-serum-golph3-associated-with-ca125-ca19-9-in-patients-with-ovarian-cancer
#16
H-Y Fan, D-M Duan, Y-F Liu
OBJECTIVE: To evaluate the value of three tumor markers serum Golgi phosphoprotein-3 (GOLPH3), cancer antigen 125 (CA125) and cancer antigen 19-9 (CA19.9) in the diagnosis and postoperative evaluation of ovarian cancer by detecting these three markers. PATIENTS AND METHODS: A total of 187 patients were studied and included in the ovarian cancer group, benign pelvic mass group, and the normal control group. The levels of serum Golgi phosphoprotein-3 (GOLPH3), cancer antigen 125 (CA125) and cancer antigen 199 (CA19...
September 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29027228/high-mobility-group-box-1-protein-orchestrates-responses-to-tissue-damage-via-inflammation-innate-and-adaptive-immunity-and-tissue-repair
#17
REVIEW
Marco E Bianchi, Massimo P Crippa, Angelo A Manfredi, Rosanna Mezzapelle, Patrizia Rovere Querini, Emilie Venereau
A single protein, HMGB1, directs the triggering of inflammation, innate and adaptive immune responses, and tissue healing after damage. HMGB1 is the best characterized damage-associated molecular pattern (DAMP), proteins that are normally inside the cell but are released after cell death, and allow the immune system to distinguish between antigens that are dangerous or not. Notably, cells undergoing severe stress actively secrete HMGB1 via a dedicated secretion pathway: HMGB1 is relocated from the nucleus to the cytoplasm and then to secretory lysosomes or directly to the extracellular space...
November 2017: Immunological Reviews
https://www.readbyqxmd.com/read/29027218/cell-death-and-immunity-in-cancer-from-danger-signals-to-mimicry-of-pathogen-defense-responses
#18
REVIEW
Abhishek D Garg, Patrizia Agostinis
The immunogenicity of cancer cells is an emerging determinant of anti-cancer immunotherapy. Beyond developing immunostimulatory regimens like dendritic cell-based vaccines, immune-checkpoint blockers, and adoptive T-cell transfer, investigators are beginning to focus on the immunobiology of dying cancer cells and its relevance for the success of anticancer immunotherapies. It is currently accepted that cancer cells may die in response to anti-cancer therapies through regulated cell death programs, which may either repress or increase their immunogenic potential...
November 2017: Immunological Reviews
https://www.readbyqxmd.com/read/29026949/a-filamentous-bacteriophage-targeted-to-carcinoembryonic-antigen-induces-tumor-regression-in-mouse-models-of-colorectal-cancer
#19
Paola Murgas, Nicolás Bustamante, Nicole Araya, Sebastián Cruz-Gómez, Eduardo Durán, Diana Gaete, César Oyarce, Ernesto López, Andrés Alonso Herrada, Nicolás Ferreira, Hans Pieringer, Alvaro Lladser
Colorectal cancer is a deadly disease, which is frequently diagnosed at advanced stages, where conventional treatments are no longer effective. Cancer immunotherapy has emerged as a new form to treat different malignancies by turning-on the immune system against tumors. However, tumors are able to evade antitumor immune responses by promoting an immunosuppressive microenvironment. Single-stranded DNA containing M13 bacteriophages are highly immunogenic and can be specifically targeted to the surface of tumor cells to trigger inflammation and infiltration of activated innate immune cells, overcoming tumor-associated immunosuppression and promoting antitumor immunity...
October 12, 2017: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/29026664/supratentorial-extraparenchymal-schwannoma-mimicking-parasagittal-meningioma-a-rare-case-report
#20
Uday S Raswan, Irfan Bhat, Nuzhat Samoon, Sajad H Arif, Masood Laharwal, Sarbjit S Chhiber, Altaf Umar Ramzan
BACKGROUND: Intracranial schwannomas not related to cranial nerves are very rare. Young age, no known history of neurofibromatosis, and seizure as initial symptom have been reported to be associated with intraparenchymal schwannoma. CASE DESCRIPTION: We report a case of supratentorial parasagittal schwannoma in the right frontal region presenting with seizure episode in a 70-year-old man. Computed tomography and magnetic resonance imaging showed a right frontal solid, enhancing extra-axial lesion based on anterior and middle third junction of superior sagittal sinus...
2017: Surgical Neurology International
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