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https://www.readbyqxmd.com/read/29790264/immune-responses-against-tumor-associated-antigen-derived-cytotoxic-t-lymphocyte-epitopes-in-cholangiocarcinoma-patients
#1
Akihiko Kida, Eishiro Mizukoshi, Toshikatsu Tamai, Takeshi Terashima, Masaaki Kitahara, Kuniaki Arai, Tatsuya Yamashita, Kazumi Fushimi, Masao Honda, Shuichi Kaneko
BACKGROUND & AIMS: Immunotherapy is a promising treatment option for cholangiocarcinoma. We compared cytotoxic T lymphocyte (CTL) responses against several tumor-associated antigen (TAA)-derived epitopes in cholangiocarcinoma patients to identify candidate epitopes for immunotherapy. METHODS: Twenty-six TAAs were selected, and the expression of TAAs in 6 cholangiocarcinoma cell lines and 9 specimens were measured using real-time polymerase chain reaction (PCR)...
May 23, 2018: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/29785020/glypican-1-immunohistochemistry-does-not-separate-mesothelioma-from-pulmonary-adenocarcinoma
#2
Kenrry Chiu, Lawrence Lee, Simon Cheung, Andrew M Churg
Immunohistochemistry (IHC) is used to help differentiate pleural mesothelioma from pulmonary adenocarcinoma in pleural biopsies and cytology specimens of pleural effusions due to overlapping morphologic features between these two malignancies. The aim of this study is to evaluate IHC glypican-1, a recently proposed marker for epithelioid mesothelioma, in our cohort of mesotheliomas and pulmonary adenocarcinoma. Tissue microarrays with duplicate cores from 33 cases of mesotheliomas (28 epithelioid type and five sarcomatoid type) and 21 cases of pulmonary adenocarcinoma were stained with glypican-1 antibody...
May 21, 2018: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/29785018/pulmonary-adenocarcinoma-with-high-grade-fetal-adenocarcinoma-component-has-a-poor-prognosis-comparable-to-that-of-micropapillary-adenocarcinoma
#3
Masaki Suzuki, Yukio Nakatani, Hiroyuki Ito, Hiroto Narimatsu, Kozo Yamada, Emi Yoshioka, Kota Washimi, Yoichiro Okubo, Kae Kawachi, Yohei Miyagi, Tomoyuki Yokose
Fetal adenocarcinoma is a rare variant of lung adenocarcinoma, which is subcategorized into low-grade and high-grade forms. High-grade fetal adenocarcinoma confers worse prognosis than low-grade fetal adenocarcinoma, but the prognostic differences between high-grade fetal adenocarcinoma and conventional lung adenocarcinoma are unknown. We reviewed tissue sections of 3719 cases of surgically resected primary lung cancers and found 53 lung cancers with a high-grade fetal adenocarcinoma component. We analyzed their clinicopathological and immunohistochemical features, and performed a prognostic analysis of adenocarcinomas with the fetal-type component...
May 21, 2018: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/29775666/the-effect-of-syndecan-4-and-glypican-1-knockdown-on-the-proliferation-and-differentiation-of-turkey-satellite-cells-differing-in-age-and-growth-rates
#4
Sandra G Velleman, Daniel L Clark, Jeffrey R Tonniges
Posthatch skeletal muscle growth requires myogenic satellite cells and the dynamic expression of cell membrane-associated proteins. The membrane associated heparan sulfate proteoglycans, syndecan-4 and glypican-1, link the satellite cell niche to the intracellular environment. Sydnecan-4 and glypican-1 are differentially expressed with age in turkey satellite cells and their over-expression impacts both satellite cell proliferation and differentiation, but their effect on satellite cells from lines with different growth potentials is not known...
May 15, 2018: Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology
https://www.readbyqxmd.com/read/29753846/role-of-hnf1%C3%AE-in-the-differential-diagnosis-from-other-germ-cell-tumors
#5
Anne-Laure Rougemont, Jean-Christophe Tille
Identification of the yolk sac tumor (YST) component in germ cell tumors (GCT) may prove challenging, and highly sensitive and specific immunohistochemical markers are still lacking. Preliminary data from the literature suggest that HNF1β may represent a sensitive marker of YST. The specificity of HNF1β has not been addressed in GCT. A cohort of 49 YST specimens from 45 patients was designed, occurring either as pure tumors, or as a component of a mixed GCT. Immunohistochemistry was conducted on whole tumor sections using HNF1β...
May 10, 2018: Human Pathology
https://www.readbyqxmd.com/read/29751880/update-on-ancillary-testing-in-the-evaluation-of-high-grade-liver-tumors
#6
REVIEW
Anne Koehne de Gonzalez, Stephen M Lagana
Tissue diagnosis is the gold standard for mass lesions of the liver, but needle core biopsies may sometimes prove challenging. Presented here is a review of a panel of immunohistochemical stains, including hepatocyte in paraffin 1, arginase-1, polyclonal carcinoembryonic antigen, CD10, bile salt export pump, glypican-3, as well as in situ hybridization for albumin RNA, to establish hepatocellular origin in cases in which hepatocellular carcinoma is suspected but the sample is limited or the morphology is challenging, as it may be with cases of scirrhous, fibrolamellar carcinoma, intrahepatic cholangiocarcinoma, and combined hepatocellular-cholangiocarcinoma...
June 2018: Surgical Pathology Clinics
https://www.readbyqxmd.com/read/29751042/next-generation-sequencing-analysis-for-gastric-adenocarcinoma-with-enteroblastic-differentiation-emphasis-on-the-relationship-with-hepatoid-adenocarcinoma
#7
Yoichi Akazawa, Tsuyoshi Saito, Takuo Hayashi, Yuka Yanai, Sho Tsuyama, Keisuke Akaike, Yoshiyuki Suehara, Fumiyuki Takahashi, Kazuya Takamochi, Hiroya Ueyama, Takashi Murakami, Sumio Watanabe, Akihito Nagahara, Takashi Yao
Histologically tubulo-papillary structures with glycogen-rich clear cytoplasm in gastric adenocarcinoma with enteroblastic differentiation (GAED) are well-known, but a solid growth pattern can also be observed as a minor component. In contrast, hepatoid adenocarcinoma (HAC) of the stomach shows many overlapping features, including solid pattern and alpha-fetoprotein expression. In this study, we employed next-generation sequencing (NGS) to establish a molecular/clinicopathological concept of GAED and clarify whether these two tumors should be grouped together in one category...
May 8, 2018: Human Pathology
https://www.readbyqxmd.com/read/29750031/glypican-1-antibody-conjugated-gd-au-nanoclusters-for-fi-mri-dual-modal-targeted-detection-of-pancreatic-cancer
#8
Xin Huang, Chengqi Fan, Huanhuan Zhu, Wenjun Le, Shaobin Cui, Xin Chen, Wei Li, Fulei Zhang, Yong Huang, Donglu Sh, Zheng Cui, Chengwei Shao, Bingdi Chen
Introduction: Pancreatic cancer (PC) has a poor prognosis with high mortality, due to the lack of effective early diagnostic and prognostic tools. Materials and methods: In order to target and diagnose PC, we developed a dual-modal imaging probe using Glypican-1 (GPC-1) antibody conjugated with Gd-Au nanoclusters (NCs; Gd-Au-NC-GPC-1). GPC-1 is a type of cell surface heparan sulfate proteoglycan, which is often highly expressed in PC. The probe was successfully prepared with a hydrodynamic diameter ranging from 13...
2018: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29721179/glypican-1-is-enriched-in-circulating-exosomes-in-pancreatic-cancer-and-correlates-with-tumor-burden
#9
Adam E Frampton, Mireia Mato Prado, Elena López-Jiménez, Ana Belen Fajardo-Puerta, Zaynab A R Jawad, Phillip Lawton, Elisa Giovannetti, Nagy A Habib, Leandro Castellano, Justin Stebbing, Jonathan Krell, Long R Jiao
Background: Glypican-1 (GPC1) is expressed in pancreatic ductal adenocarcinoma (PDAC) cells and adjacent stromal fibroblasts. Recently, GPC1 circulating exosomes (crExos) have been shown to be able to detect early stages of PDAC. In this study, we investigated the usefulness of crExos GPC1 as a biomarker for PDAC. Methods: Plasma was obtained from patients with benign pancreatic disease ( n = 16) and PDAC ( n = 27) prior to pancreatectomy, and crExos were isolated by ultra-centrifugation...
April 10, 2018: Oncotarget
https://www.readbyqxmd.com/read/29708315/glypican-3-and-melanoma-antigen-genes-1-and-3-as-tumor-markers-for-hepatocellular-carcinoma
#10
Nadia M El-Wahab, Hebat-Allah G Rashed, Wafaa T El-Sherif, Sohair K Sayed, Mohamed O Abd-Elmalek, Abeer Refaiy, Hussein Fakhry, Abeer A Mokhtar
Hepatocellular carcinoma (HCC) is the commonest liver cancer; its incidence and prevalence are continuously increased. Glypican3 (GPC3), melanoma antigen-1, 3 genes (MAGE1 and 3) are tumor markers used in HCC. We evaluated their role in HCC detection and assessed their relation to tumor parameters. Three groups, HCC group, liver cirrhosis group and a control group were studied. AFP, GPC3, and MAGE1 and 3 mRNA were determined in all study subjects. Tissue GPC3 was examined in patients with HCC only. Serum AFP and GPC3 were elevated in HCC group compared to other groups (P < 0...
June 2017: Egyptian Journal of Immunology
https://www.readbyqxmd.com/read/29675356/-in-vivo-fluorescence-imaging-of-hepatocellular-carcinoma-using-a-novel-gpc3-specific-aptamer-probe
#11
Menglong Zhao, Lili Dong, Zhuang Liu, Shuohui Yang, Weizhong Wu, Jiang Lin
Background: Glypican-3 (GPC3) is highly expressed in most of the hepatocellular carcinomas (HCCs), even in small HCCs. It may be used as a potential biomarker for early detection of HCC. The aptamer is a promising targeting agent with unique advantages over antibody. This study was to introduce a novel GPC3 specific aptamer (AP613-1), to verify its specific binding property in vitro , and to evaluate its targeting efficiency in vivo by performing near-infrared (NIR) fluorescence imaging on an HCC xenograft model...
March 2018: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/29672570/detection-of-glypican-1-gpc-1-expression-in-urine-cell-sediments-in-prostate-cancer
#12
Douglas H Campbell, Maria E Lund, Aline L Nocon, Paul J Cozzi, Mark Frydenberg, Paul De Souza, Belinda Schiller, Jennifer L Beebe-Dimmer, Julie J Ruterbusch, Bradley J Walsh
While measurement of serum prostate specific antigen (PSA) is an important screening tool for prostate cancer, new biomarkers are necessary for better discrimination between presence and absence of disease. The MIL-38 monoclonal antibody is specific for the membrane glycoprotein glypican 1 (GPC-1) and binds to prostate cancer tissue. Urine is known to be a source of cellular material. Thus, we hypothesized that detection of GPC-1 in urine cellular material may identify individuals with prostate cancer. Urine samples from patients with prostate cancer, benign prostatic hyperplasia (BPH), or normal controls were collected and cell sediments prepared...
2018: PloS One
https://www.readbyqxmd.com/read/29669302/cytotoxic-and-partial-hepatoprotective-activity-of-sodium-ascorbate-against-hepatocellular-carcinoma-through-inhibition-of-sulfatase-2-in-vivo-and-in-vitro
#13
Abdullah Alyoussef, Mohammed M H Al-Gayyar
Hepatocellular carcinoma (HCC) is characterized by elevation in the activity of sulfatase-2, an extracellular enzyme that catalyzes removal of 6-O-sulfate groups from heparan sulfate. Therefore, we conducted this study to investigate the cytotoxic activity of the strong water-soluble antioxidant, sodium ascorbate, against HCC both in vivo and in vitro. Sodium ascorbate enhanced animal survival in vivo and reduced HepG2 cells survival. The protein levels of heparan sulfate proteoglycans (HSPGs), insulin like growth factor (IGF)-2, sulfatase-2 and glypican-3 were assessed...
April 15, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29624843/a-novel-multimarker-assay-for-the-phenotypic-profiling-of-circulating-tumor-cells-in-hepatocellular-carcinoma
#14
Colin M Court, Shuang Hou, Paul Winograd, Nicholas H Segel, Qingyu Wilda Li, Yazhen Zhu, Saeed Sadeghi, Richard S Finn, Ekambaram Ganapathy, Min Song, Samuel W French, Bita V Naini, Shonan Sho, Fady M Kaldas, Ronald W Busuttil, James S Tomlinson, Hsian-Rong Tseng, Vatche G Agopian
Current clinicopathologic staging systems and serum biomarkers poorly discriminate tumor biology in hepatocellular carcinoma (HCC), with high recurrence rates following curative-intent surgical resection and liver transplantation (LT). Identification of accurate biomarkers for improved prognostication and treatment selection is a critical unmet need. We sought to develop a novel "liquid-biopsy" assay capable of detecting HCC circulating tumor cells (CTCs), and characterizing phenotypic subpopulations with prognostic significance...
April 6, 2018: Liver Transplantation
https://www.readbyqxmd.com/read/29623600/significance-of-glypican-3-in-early-detection-of-hepatocellular-carcinoma-in-cirrhotic-patients
#15
Ahmed M Tahon, Magdy Z El-Ghanam, Samy Zaky, Tarek Mostafa Emran, Ali M Bersy, Fathiya El-Raey, Elsayed A Z, Amr M El Kharsawy, Dina Johar
BACKGROUND: Egypt has high incidence of hepatocellular carcinoma (HCC). This is due to wide spread of hepatitis C virus (HCV) infection which is responsible for most of the cases of liver cirrhosis. The major diagnostic techniques for HCC include serum markers and various imaging modalities. Glypican 3 (GPC3) protein is highly expressed in HCC, but not in normal liver tissue. The significance of GPC3 as a predictor or diagnostic tool for human tumors other than HCC is unclear. AIM: To quantitatively assess the role of GPC3 in diagnosis of HCC in comparison to α-fetoprotein (AFP), ultrasonography (US), and computerized tomography (CT)...
April 6, 2018: Journal of Gastrointestinal Cancer
https://www.readbyqxmd.com/read/29605994/slow-off-rate-modified-aptamer-somamer-as-a-novel-reagent-in-immunoassay-development-for-accurate-soluble-glypican-3-quantification-in-clinical-samples
#16
Jia Duo, Camelia Chiriac, Richard Y-C Huang, John Timothy Mehl, Guodong Chen, Adrienne A Tymiak, Peter Sabbatini, Renuka Pillutla, Yan J Zhang
Accurate quantification of soluble glypican-3 in clinical samples using immunoassays is challenging due to the lack of appropriate antibody reagents to provide a full spectrum measurement of all potential soluble glypican-3 fragments in vivo. Glypican-3 SOMAmer (Slow Off-Rate Modified Aptamer) is a novel reagent which binds, with high affinity, to a far distinct epitope of glypican-3 when compared to all available antibody reagents generated in house. This paper describes an integrated analytical approach to rational selection of key reagents based on molecular characterization by epitope mapping, with the focus on our work using a SOMAmer as a new reagent to address development challenges with traditional antibody reagents for the soluble glypican-3 immunoassay...
March 31, 2018: Analytical Chemistry
https://www.readbyqxmd.com/read/29582639/diagnostic-value-of-glypican-3-for-hepatocellular-carcinomas
#17
Sherif El-Saadany, Taher El-Demerdash, Amal Helmy, Wael Wahid Mayah, Boshra El-Sayed Hussein, Mohammed Hassanien, Nehal Elmashad, Mahmoud Ali Fouad, Eman Ahmed Basha
Background: Hepatocellular carcinoma (HCC) is a common and dangerous malignancy in many parts of the world, and especially in Egypt. Early diagnosis is the most important step in successful HCC management. However most cases are detected at late stage making effective intervention impossible. Aim: The aim of this study was to evaluate the potential of Glypican-3 (GPC-3) to aid in diagnosis of HCC, especially in patients with low serum alpha-fetoprotein (AFP). Subjects and methods: Serum GPC-3 was assessed by flow-cytometry and serum AFP by enzyme-linked immunosorbent assay (ELISA) in 40 HCC patients with AFP< 400ug\l...
March 27, 2018: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/29577937/hepatitis-c-virus-hcv-mimics-effects-of-glypican-3-gpc3-on-cd81-and-promotes-development-of-hepatocellular-carcinomas-via-activation-of-hippo-pathway-in-hepatocytes
#18
Yuhua Xue, Wendy M Mars, William Bowen, Aatur D Singhi, John Stoops, George K Michalopoulos
Glypican 3 (GPC3) is over-expressed in hepatocellular carcinomas (HCC). GPC3 binds to CD81. Forced expression of CD81 in a GPC3 expressing HCC cell line caused activation of Hippo, decrease in Ezrin phosphorylation, and decrease in Yap. CD81 is also associated with HCV entry into hepatocytes. Activation of CD81 by agonistic antibody causes activation of spleen kinase (Syk) and phosphorylation of Ezrin, a regulator of Hippo pathway. In cultures of normal hepatocytes, CD81 agonistic antibody led to enhanced phosphorylation of Ezrin and increase in nuclear Yap...
March 22, 2018: American Journal of Pathology
https://www.readbyqxmd.com/read/29570265/integrated-analysis-of-exosomal-protein-biomarkers-on-alternating-current-electrokinetic-chips-enables-rapid-detection-of-pancreatic-cancer-in-patient-blood
#19
Jean M Lewis, Ankit D Vyas, Yuqi Qiu, Karen S Messer, Rebekah White, Michael J Heller
Pancreatic ductal adenocarcinoma (PDAC) typically has non-specific symptoms, and is often found too late to treat. Because diagnosis of PDAC involves complex, invasive, and expensive procedures, screening populations at increased risk will depend on developing rapid, sensitive, specific, and cost-effective tests. Exosomes, which are nanoscale vesicles shed into blood from tumors, have come into focus as valuable entities for non-invasive liquid biopsy diagnostics. However, rapid capture and analysis of exosomes with their protein and other biomarkers have proven difficult...
March 23, 2018: ACS Nano
https://www.readbyqxmd.com/read/29569872/concomitant-use-of-heat-shock-protein-70-glutamine-synthetase-and-glypican-3-is-useful-in-diagnosis-of-hbv-related-hepatocellular-carcinoma-with-higher-specificity-and-sensitivity
#20
Bita Moudi, Zahra Heidari, Hamidreza Mahmoudzadeh-Sagheb, Seyed-Moayed Alavian, Kamran B Lankarani, Parisa Farrokh, Jens Randel Nyengaard
Hepatocellular carcinoma is the third leading cause of cancer-related death worldwide and late diagnosis is the main cause of death in HCC patients. In this study expression patterns of HSP70, GPC3 and GS and their relationships with pathogenesis of HCC in Iranian patients were investigated. The expression of HSP70, GPC3 and GS were determined by immunohistochemistry and quantitative real-time PCR (q-PCR) methods, using 121 cases from patients with HBV alone, HCC without HBV, HBV+HCC and 30 normal tissues as control group...
January 29, 2018: European Journal of Histochemistry: EJH
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