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Advanced gastric cancer

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https://www.readbyqxmd.com/read/28817117/increased-tumor-infiltrating-cd45ra-ccr7-regulatory-t-cell-subset-with-immunosuppressive-properties-foster-gastric-cancer-progress
#1
Fang-Yuan Mao, Hui Kong, Yong-Liang Zhao, Liu-Sheng Peng, Weisan Chen, Jin-Yu Zhang, Ping Cheng, Ting-Ting Wang, Yi-Pin Lv, Yong-Sheng Teng, Xiao-Long Fu, Yu-Gang Liu, Xiao-Long Wu, Chuan-Jie Hao, Nan You, Ping Luo, Pei-Wu Yu, Quan-Ming Zou, Gang Guo, Yuan Zhuang
Regulatory T cells (Tregs) are major components of tumor-infiltrating immune cells with potent immunosuppressive properties in gastric cancer (GC) microenvironment. However, different subsets of the Tregs and their relevance to GC are unknown. Here, we found that patients with GC showed a significantly higher Tregs infiltration in tumors, and CD45RA(-)CCR7(-) Treg subset constituted most tumor-infiltrating Tregs. Tumor-infiltrating CD45RA(-)CCR7(-) Treg subset with an effector/memory phenotype accumulated in tumors and expressed low level of HLA-DR...
August 17, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28815347/the-tumor-stromal-ratio-as-a-strong-prognosticator-for-advanced-gastric-cancer-patients-proposal-of-a-new-tsnm-staging-system
#2
Chunwei Peng, Jiuyang Liu, Guifang Yang, Yan Li
BACKGROUND: Insufficient attention is paid to the underlying tumor microenvironment (TME) evolution, that resulting in tumor heterogeneity and driving differences in cancer aggressiveness and treatment outcomes. The morphological evaluation of the proportion of the stroma at the most invasive part of primary tumor (tumor-stromal ratio, TSR) in cancer is gaining momentum as evidence strengthens for the clinical relevance. METHODS: Tissue samples from the most invasive part of the primary gastric cancer (GC) of 494 patients were analyzed for their TSR, and a new TSNM (tumor-stromal node metastasis) staging system based on patho-biological behaviors was established and assessed...
August 16, 2017: Journal of Gastroenterology
https://www.readbyqxmd.com/read/28814970/prevalence-and-characteristics-of-epstein-barr-virus-associated-gastric-carcinomas-in-portugal
#3
Célia Nogueira, Marta Mota, Rui Gradiz, Maria Augusta Cipriano, Francisco Caramelo, Hugo Cruz, Ana Alarcão, Francisco Castro E Sousa, Fernando Oliveira, Fernando Martinho, João Moura Pereira, Paulo Figueiredo, Maximino Leitão
BACKGROUND: Gastric cancer (GC) is one of the most common malignant tumors of the digestive tract and is the third leading cause of cancer death worldwide. Epstein-Barr virus (EBV) has been associated with approximately 10% of the total cases of gastric carcinomas. No previous study has analyzed the prevalence of EBV infection in gastric cancer of the Portuguese population. METHODS: In the present study, we have analyzed 82 gastric carcinoma cases and 33 healthy individuals (control group) from Coimbra region for the presence of EBV by polymerase chain reaction (PCR) and by in situ hybridization (ISH) for EBV-encoded small RNAs (EBERs)...
2017: Infectious Agents and Cancer
https://www.readbyqxmd.com/read/28811251/deletion-in-hsp110-t17-correlation-with-wild-type-hsp110-expression-and-prognostic-significance-in-microsatellite-unstable-advanced-gastric-cancers
#4
Kyung-Ju Kim, Tae Hun Lee, Jung Ho Kim, Nam-Yun Cho, Woo Ho Kim, Gyeong Hoon Kang
Deletion of the HSP110 T17 mononucleotide repeat has recently been identified as a prognostic marker that is correlated with wild-type HSP110 (HSP110wt) expression in microsatellite instability-high (MSI-H) colorectal cancers. The aim of this study was to assess the correlation between deletion of the HSP110 T17 repeat and expression of HSP110wt, using DNA testing and immunohistochemistry and to determine the prognostic implications of HSP110 T17 deletion in MSI-H advanced gastric cancers (GCs). The status of HSP110wt expression was evaluated by immunohistochemistry using an HSP110wt-specific antibody in 142 MSI-H advanced GCs...
August 12, 2017: Human Pathology
https://www.readbyqxmd.com/read/28810654/roles-of-p38-and-jnk-protein-kinase-pathways-activated-by-compound-cantharidin-capsules-containing-serum-on-proliferation-inhibition-and-apoptosis-of-human-gastric-cancer-cell-line
#5
Yonghao Sun, Dejuan Zhang, Mao Mao, Yangping Lu, Ning Jiao
The aim of the present study was to investigate the inhibitory effect of compound cantharides capsules (CCCs) on the viability and apoptosis of human gastric cancer cell lines, BGC-823 and SGC-7901, and to detect its regulation of gene expression levels, as well as its inhibition mechanisms. Each cell line was grouped into a control group, CCC serum group, 5-fluorouracil (5-FU) group, combination therapy group (CCC serum + 5-FU) and serum control group. Growth curves were measured and flow cytometry was used to detect cell apoptosis and cell viability...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28808875/ssat-state-of-the-art-conference-current-surgical-management-of-gastric-tumors
#6
Jeffrey A Norton, Teresa Kim, Joseph Kim, Martin D McCarter, Kaitlyn J Kelly, Joyce Wong, Jason K Sicklick
INTRODUCTION: The current era of gastric surgery is marked by low morbidity and mortality rates, innovative strategies to approach resections with a minimally invasive fashion or hyperthermic intraperitoneal chemotherapy (HIPEC), as well as improved understanding of the biology of sporadic and hereditary stromal, neuroendocrine, and epithelial malignancies. METHODS: In 2017, the Society for Surgery of the Alimentary Tract convened a State-of-the-Art Conference on Current Surgical Management of Gastric Tumors with both international experts and emerging leaders in the field of gastric surgery...
August 14, 2017: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/28800749/palliative-external-beam-radiotherapy-for-the-treatment-of-tumor-bleeding-in-inoperable-advanced-gastric-cancer
#7
Yun Hee Lee, Jeong Won Lee, Hong Seok Jang
BACKGROUND: To assess the outcomes and prognostic factors associated with palliative external beam radiotherapy (EBRT), administered to patients with advanced gastric cancer. METHODS: Forty-two patients with bleeding gastric tumors that received EBRT for palliation were analyzed. The response to EBRT was assessed by the palliation of tumor bleeding. Patients were classified as either responders, or non-responders to EBRT. The prognostic utility of clinical and dosimetric variables was examined in a multivariate logistic regression model...
August 12, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28799174/abdominal-surgery-for-gastric-cancer-following-coronary-artery-bypass-grafting-using-an-in-situ-right-gastroepiploic-artery-graft
#8
Keita Yano, Hideki Tsubota, Yoshio Arai, Toshihiro Abe, Michiya Hanyu
BACKGROUND: The right gastroepiploic artery (RGEA) is often used for coronary artery bypass grafting (CABG) in Japan. As gastric cancer has a high prevalence in many Asian countries, we investigated problems with surgery for gastric cancer after CABG using the RGEA. METHODS: A total of 860 patients underwent CABG using the RGEA between January 1997 and December 2006. Of these, 13 patients underwent surgery for gastric cancer after CABG. In all cases, the RGEA was harvested by the skeletonization technique, and an antegastric route was used for the anastomosis...
August 11, 2017: Journal of Cardiac Surgery
https://www.readbyqxmd.com/read/28799048/irinotecan-monotherapy-as-third-line-or-later-treatment-in-advanced-gastric-cancer
#9
Akitaka Makiyama, Kohei Arimizu, Gen Hirano, Chinatsu Makiyama, Yuzo Matsushita, Tsuyoshi Shirakawa, Hirofumi Ohmura, Masato Komoda, Keita Uchino, Kyoko Inadomi, Shuji Arita, Hiroshi Ariyama, Hitoshi Kusaba, Yudai Shinohara, Miyuki Kuwayama, Tatsuhiro Kajitani, Hisanobu Oda, Taito Esaki, Koichi Akashi, Eishi Baba
BACKGROUND: Patients with advanced gastric cancer (AGC) are often treated with irinotecan monotherapy as salvage-line therapy. However, the survival benefit of this therapy remains to be elucidated. METHODS: Medical records of AGC patients who were treated with irinotecan monotherapy as salvage-line treatment in six institutions from 2007 to 2014 were reviewed. RESULTS: A total of 146 patients had prior fluoropyrimidine and taxane therapies, and 75...
August 10, 2017: Gastric Cancer
https://www.readbyqxmd.com/read/28798986/a-phase-ii-multicentre-open-label-proof-of-concept-study-of-tasquinimod-in-hepatocellular-ovarian-renal-cell-and-gastric-cancers
#10
Bernard Escudier, Sandrine Faivre, Eric Van Cutsem, Nathalie Germann, Jean-Christophe Pouget, Ruth Plummer, Ignace Vergote, Fiona Thistlethwaite, Georg A Bjarnason, Robert Jones, Helen Mackay, Julien Edeline, Laetitia Fartoux, Hal Hirte, Amit Oza
BACKGROUND: Tasquinimod is a small molecule with immunomodulatory, anti-angiogenic, and anti-metastatic properties that targets the tumor microenvironment. This study aimed to obtain a clinical proof of concept that tasquinimod was active and tolerable in patients with advanced solid tumors. PATIENTS AND METHODS: This early stopping design, open-label, proof-of-concept clinical trial evaluated the clinical activity of tasquinimod in four independent cohorts of patients with advanced hepatocellular (n = 53), ovarian (n = 55), renal cell (n = 38), and gastric (n = 21) cancers...
August 10, 2017: Targeted Oncology
https://www.readbyqxmd.com/read/28796840/yes-research-matters
#11
Mari L Shinohara
My father was diagnosed with stomach cancer recently. Luckily, it was still at an early stage, and endoscopic surgery successfully took care of it. My father was fortunate; since people with stomach cancer do not show clear symptoms in the early stages, the disease is often not diagnosed until it becomes advanced. In his case, the diagnosis started from a suggestion by his doctor to check whether he had a gastric infection with Helicobacter pylori, a bacterial species found in the digestive tract. In Japan, where he lives, a majority of gastric cancer patients (more than 99%) have been infected with H...
August 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28795345/prognostic-implications-of-mir-302a-b-c-d-in-human-gastric-cancer
#12
Gang Ma, Qianjun Li, Weijie Dai, Xiaozhong Yang, Aiyu Sang
BACKGROUND: The microRNA (miR)-302 family consisting four members, miR-302a, miR-302b, miR-302c and miR-302d, plays an important role in diverse biological processes, and regulates many pathological changes, including cancer. However, the involvement of the miR-302 family into human gastric cancer (GC) remains unclear. The aim of this study was to investigate the expression patterns of miR-302a/b/c/d and determine their clinical significance in GC. MATERIALS AND METHODS: Expression levels of miR-302a/b/c/d in 160 pairs of human GC and matched normal mucosa tissues were detected by quantitative real-time polymerase chain reaction...
August 9, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28795293/endoscopic-palliation-of-pancreatic-cancer
#13
REVIEW
Vishal B Gohil, Jason B Klapman
Pancreas cancer is a fourth-leading cause of cancer death in the USA and its incidence is rising as the population is aging. The majority of patients present at an advanced stage due to the silent nature of the disease and treatment have focused more on palliation than curative intent. Gastroenterologists have become integral in the multidisciplinary care of these patients with a focus on providing endoscopic palliation of pancreas cancer. The three most common areas that gastroenterologists palliate endoscopically are biliary obstruction, cancer-related pain, and gastric outlet obstruction...
August 9, 2017: Current Treatment Options in Gastroenterology
https://www.readbyqxmd.com/read/28791679/effect-of-age-on-rates-of-palliative-surgery-and-chemotherapy-use-in-patients-with-locally-advanced-or-metastatic-gastric-cancer
#14
S D Nelen, M van Putten, V E P P Lemmens, K Bosscha, J H W de Wilt, R H A Verhoeven
BACKGROUND: This study assessed trends in the treatment and survival of palliatively treated patients with gastric cancer, with a focus on age-related differences. METHODS: For this retrospective, population-based, nationwide cohort study, all patients diagnosed between 1989 and 2013 with non-cardia gastric cancer with metastasized disease or invasion into adjacent structures were selected from the Netherlands Cancer Registry. Trends in treatment and 2-year overall survival were analysed and compared between younger (age less than 70 years) and older (aged 70 years or more) patients...
August 9, 2017: British Journal of Surgery
https://www.readbyqxmd.com/read/28791438/vps52-induces-apoptosis-via-cathepsin-d-in-gastric-cancer
#15
Jian Zhang, Ying Lin, Xichun Hu, Zheng Wu, Weijian Guo
Vacuolar protein sorting (VPS) genes encode a class of proteins involved in vesicular trafficking. Growing evidence suggests that VPS proteins play roles in tumor biology. Vacuolar protein sorting 52 (VPS52) is involved in retrograde transport of endosomes, and its roles in cancers have not been explored. This study investigated the genetic alterations, protein changes, biological role, and molecular mechanism of VPS52 in gastric cancer. Loss of heterozygosity of VPS52 was detected in 52.9% (9/17) of gastric cancer samples...
August 8, 2017: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
https://www.readbyqxmd.com/read/28791319/gastric-superficial-neoplasia-high-miss-rate-but-slow-progression
#16
Yuichi Shimodate, Motowo Mizuno, Akira Doi, Naoyuki Nishimura, Hirokazu Mouri, Kazuhiro Matsueda, Hiroshi Yamamoto
BACKGROUND AND AIMS:  Gastric superficial neoplasia (GSN) is often overlooked at endoscopy because of difficulty in identifying it. The miss rate of GSN at endoscopy and the impact on clinical outcome of the missed GSN have not been fully elucidated. In this study, we investigated these issues. METHODS:  Among 1462 endoscopically and pathologically diagnosed gastric cancers in our hospital from January 2011 to December 2014, previous records of esophagogastroduodenoscopy (EGD) were available for 198 lesions (index lesions) and were reviewed retrospectively...
August 2017: Endoscopy International Open
https://www.readbyqxmd.com/read/28782986/her2-heterogeneity-in-gastroesophageal-cancer-detected-by-testing-biopsy-and-resection-specimens
#17
Ladan Fazlollahi, Helen E Remotti, Alina Iuga, Hui-Min Yang, Stephen M Lagana, Antonia R Sepulveda
CONTEXT: - In advanced gastric, esophageal, and gastroesophageal junction adenocarcinomas (GE-GEJ-AC) that overexpress ERBB2 (erb-b2 receptor tyrosine kinase 2 or HER2), anti-HER2 monoclonal antibody therapy confers survival benefit. To select patients for treatment, HER2 expression and gene amplification are evaluated by immunohistochemistry (IHC) and in situ hybridization. OBJECTIVE: - To determine whether GE-GEJ-AC tested for HER2 on biopsy specimens of a primary tumor show different IHC scores and/or HER2 amplification by in situ hybridization in matched resection specimens, potentially changing therapy eligibility...
August 7, 2017: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/28782661/clinical-impact-of-small-advanced-gastric-cancer-%C3%A2-40%C3%A2-mm-in-elderly-patients-a-retrospective-cohort-study
#18
Yoshitake Ueda, Hajime Fujishima, Teijiro Hirashita, Hidefumi Shiroshita, Tsuyoshi Etoh, Masafumi Inomata, Norio Shiraishi
OBJECTIVES: Recently, the incidence of small advanced gastric cancer has been increasing in elderly patients. To clarify the clinical impact of small advanced gastric cancer (≤40 mm) in elderly patients, short- and long-term outcomes after gastrectomy for this disease were examined and compared with those for large gastric cancer. PATIENTS AND METHOD: Forty-seven patients aged 80 years or older with advanced gastric cancer (deeper than pT2) who underwent curative gastrectomy from 1998 to 2015 were enrolled in this study...
August 3, 2017: International Journal of Surgery
https://www.readbyqxmd.com/read/28781967/immunotherapeutic-strategies-for-gastric-carcinoma-a-review-of-preclinical-and-clinical-recent-development
#19
REVIEW
Mohamed Abozeid, Antonio Rosato, Roberta Sommaggio
Gastric carcinoma (GC) is the 2nd most common cause of cancer-related death. Despite advances in conventional treatment and surgical interventions, a high percentage of GC patients still have poor survival. Recently, immunotherapy has become a promising approach to treat GC. Here, we present preclinical and clinical studies encouraging the use of vaccination, adoptive T-cell therapy (ACT), and immune checkpoint inhibitors, such as programmed cell death protein 1 (PD-1)/programmed death-ligand 1 (PD-L1) or cytotoxic T-lymphocyte-associated protein 4 (CTLA-4)...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28781787/combined-perioperative-eox-chemotherapy-and-postoperative-chemoradiotherapy-for-locally-advanced-gastric-cancer
#20
Qiushan He, Juan Zhao, Jia Yuan, Zhimin Gong, Tienan Yi
Currently, adjunctive therapy for gastric cancer is not standardized worldwide and the most effective combination of different modalities has not been clearly determined. The aim of the present study was to retrospectively analyze the efficacy and toxicity of the combination of perioperative epirubicin, capecitabine and oxaliplatin (EOX) chemotherapy and postoperative concurrent chemoradiotherapy in the treatment of locally advanced gastric cancer. A total of 41 patients with locally advanced gastric cancer who had undergone perioperative EOX chemotherapy and surgical resection followed by chemoradiotherapy, were assessed...
August 2017: Molecular and Clinical Oncology
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