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https://www.readbyqxmd.com/read/28223509/high-throughput-screening-of-rare-metabolically-active-tumor-cells-in-pleural-effusion-and-peripheral-blood-of-lung-cancer-patients
#1
Yin Tang, Zhuo Wang, Ziming Li, Jungwoo Kim, Yuliang Deng, Yan Li, James R Heath, Wei Wei, Shun Lu, Qihui Shi
Malignant pleural effusion (MPE), the presence of malignant cells in pleural fluid, is often the first sign of many cancers and occurs in patients with metastatic malignancies. Accurate detection of tumor cells in pleural fluid is crucial because the presence of MPE denotes an advanced stage of disease and directs a switch in clinical managements. Cytology, as a traditional diagnostic tool, has limited sensitivity especially when tumor cells are not abundant, and may be confounded by reactive mesothelial cells in the pleural fluid...
February 21, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28197626/kdm6a-and-kdm6b-altered-expression-in-malignant-pleural-mesothelioma
#2
Sian Cregan, Maeve Breslin, Gerard Roche, Sigrid Wennstedt, Lauren MacDonagh, Cinaria Albadri, Yun Gao, Kenneth J O'Byrne, Sinead Cuffe, Stephen P Finn, Steven G Gray
Malignant pleural mesothelioma (MPM) is a rare aggressive cancer of the pleura primarily associated with prior exposure to asbestos. The current standard of care for patients suffering from MPM is a combination of cisplatin and pemetrexed (or alternatively cisplatin and raltitrexed). Most patients, however, die within 24 months of diagnosis. New therapies are therefore urgently required for this disease. Inflammation is thought to be a key element in the pathogenesis of MPM, and recently Kdm6 family members (Kdm6a and Kdm6b) have been identified as playing important roles in inflammatory processes...
March 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28196410/mesothelin-expression-in-gastric-adenocarcinoma-and-its-relation-to-clinical-outcomes
#3
Song-Hee Han, Mee Joo, Hanseong Kim, Sunhee Chang
Background: Although surgical resection with chemotherapy is considered effective for patients with advanced gastric cancer, it remains the third leading cause of cancer-related death in South Korea. Several studies have reported that mesothelial markers including mesothelin, calretinin, and Wilms tumor protein 1 (WT1) were positive in variable carcinomas, associated with prognosis, and were evaluated as potential markers for targeted therapy. The aim of this study was to assess the immunohistochemical expression of mesothelial markers (mesothelin, calretinin, and WT1) in gastric adenocarcinoma and their relations to clinocopathological features and prognosis...
February 15, 2017: Journal of Pathology and Translational Medicine
https://www.readbyqxmd.com/read/28195084/calretinin-expression-as-a-reliable-prognostic-marker-in-different-molecular-subtypes-of-breast-carcinoma
#4
Mayada Saad Farrag, Amro Awad El-Karef, Maha Mohammed Amin, Nagwa Mokhtar Helal, Omar Farouk Ali, Nesrine Saad Farrag
BACKGROUND: Calretinin (CR), a known mesothelial marker, is expressed in both epithelial and mesenchymal malignancies including breast cancer. AIMS: We aimed to measure the frequency of CR expression in correlation with other clinicopathological parameters of different molecular subtypes of invasive breast carcinoma and to study its prognostic implications in this common cancer. STUDY DESIGN: Tissue microarrays were constructed from 225 tissue samples of breast carcinoma cases...
January 2017: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/28191281/switching-off-malignant-mesothelioma-exploiting-the-hypoxic-microenvironment
#5
REVIEW
Noushin Nabavi, Kevin L Bennewith, Andrew Churg, Yuzhuo Wang, Colin C Collins, Luciano Mutti
Malignant mesotheliomas are aggressive, asbestos-related cancers with poor patient prognosis, typically arising in the mesothelial surfaces of tissues in pleural and peritoneal cavity. The relative unspecific symptoms of mesotheliomas, misdiagnoses, and lack of precise targeted therapies call for a more critical assessment of this disease. In the present review, we categorize commonly identified genomic aberrations of mesotheliomas into their canonical pathways and discuss targeting these pathways in the context of tumor hypoxia, a hallmark of cancer known to render solid tumors more resistant to radiation and most chemo-therapy...
November 2016: Genes & Cancer
https://www.readbyqxmd.com/read/28185919/rheostatic-cd44-isoform-expression-and-its-association-with-oxidative-stress-in-human-malignant-mesothelioma
#6
Shan Hwu Chew, Yasumasa Okazaki, Shinya Akatsuka, Shenqi Wang, Li Jiang, Yuuki Ohara, Fumiya Ito, Hideyuki Saya, Yoshitaka Sekido, Shinya Toyokuni
CD44 exists as a standard (CD44s) isoform and different variant isoforms (CD44v) due to alternative splicing. While the complex nature of these different isoforms has not been fully elucidated, CD44v expression has been shown to exert oncogenic effects by promoting tumor progression, metastasis and resistance of tumor cells to chemotherapy. One of the CD44v isoforms, CD44v8-10, was recently shown to protect cancer cells from oxidative stress by increasing the synthesis of glutathione (GSH). However, data regarding CD44 isoform expression in malignant mesothelioma (MM) are still lacking...
February 6, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28160193/correlation-between-tumor-mesothelin-expression-and-serum-mesothelin-in-patients-with-epithelial-ovarian-carcinoma-a-potential-noninvasive-biomarker-for-mesothelin-targeted-therapy
#7
Tatsuya Hanaoka, Kosei Hasegawa, Tomomi Kato, Sho Sato, Akira Kurosaki, Akiko Miyara, Shoji Nagao, Hiroyuki Seki, Masanori Yasuda, Keiichi Fujiwara
BACKGROUND: The cell surface glycoprotein mesothelin is highly expressed in several malignant diseases. Normal mesothelin expression is limited to mesothelial cells lining the pleura, peritoneum, and pericardium, making it a biomarker and an attractive target for cancer therapy. METHODS: We investigated tumor mesothelin expression and serum mesothelin levels in patients with epithelial ovarian cancer or borderline tumors. In total, 161 patients selected from a previous prospective study were analyzed for tumor mesothelin expression using immunohistochemistry and serum mesothelin expression using enzyme-linked immunosorbent assay...
February 3, 2017: Molecular Diagnosis & Therapy
https://www.readbyqxmd.com/read/28092842/blocking-tgf-%C3%AE-1-by-p17-peptides-attenuates-gastric-cancer-cell-induced-peritoneal-fibrosis-and-prevents-peritoneal-dissemination-in-vitro-and-in-vivo
#8
Zhi-Dong Lv, Wei-Jun Zhao, Li-Ying Jin, Wen-Juan Wang, Qian Dong, Na Li, Hui-Mian Xu, Hai-Bo Wang
Our previous study demonstrated that the peritoneal stroma environment favors proliferation of tumor cells by serving as a rich source of growth factors and chemokines known to be involved in tumor metastasis. In this study, we investigated the interaction between gastric cancer cells and peritoneal mesothelial cells, and determined the effects of TGF-β1 in this processing. Human peritoneal tissues and peritoneal wash fluid were obtained, which examined by hematoxylin and eosin staining or ELISA for measurements of TGF-β1 levels...
January 13, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28056854/establishing-a-xenograft-mouse-model-of-peritoneal-dissemination-of-gastric-cancer-with-organ-invasion-and-fibrosis
#9
Mitsuyoshi Okazaki, Sachio Fushida, Shinichi Harada, Tomoya Tsukada, Jun Kinoshita, Katsunobu Oyama, Tomoharu Miyashita, Itasu Ninomiya, Tetsuo Ohta
BACKGROUND: The clinical prognosis of gastric cancer with peritoneal dissemination is poor because of its chemoresistance and rich fibrosis. While several gastric cancer cell lines have been used to establish models of peritoneal dissemination by intraperitoneal injection, most peritoneal tumors that form adopt a medullary pattern in microscopic appearance. This histological finding for the model differs from that in the clinical situation. This study was performed to demonstrate the contribution of human peritoneal mesothelial cells (HPMCs) to fibrotic tumor formation and to establish a new xenograft model with high potential for peritoneal dissemination with organ invasion and extensive fibrosis...
January 5, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28035373/cancer-associated-peritoneal-mesothelial-cells-lead-the-formation-of-pancreatic-cancer-peritoneal-dissemination
#10
Toshiya Abe, Kenoki Ohuchida, Kazuhiro Koikawa, Sho Endo, Takashi Okumura, Masafumi Sada, Kohei Horioka, Biao Zheng, Taiki Moriyama, Kohei Nakata, Yoshihiro Miyasaka, Tatsuya Manabe, Takao Ohtsuka, Eishi Nagai, Kazuhiro Mizumoto, Makoto Hashizume, Masafumi Nakamura
The interaction between the cancer cells and the peritoneal mesothelial cells (PMCs) plays an important role in the peritoneal dissemination in several types of cancer. However, the role of PMCs in the peritoneal dissemination of pancreatic cancer remains unclear. In the present study, we investigated the interaction between the pancreatic cancer cells (PCCs) and the PMCs in the formation of peritoneal dissemination in vitro and in vivo. The tumor-stromal interaction of PCCs and PMCs significantly enhanced their mobility and invasiveness and enhanced the proliferation and anoikis resistance of PCCs...
February 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28032864/senescent-peritoneal-mesothelium-creates-a-niche-for-ovarian-cancer-metastases
#11
Justyna Mikuła-Pietrasik, Paweł Uruski, Patrycja Sosińska, Konstantin Maksin, Hanna Piotrowska-Kempisty, Małgorzata Kucińska, Marek Murias, Sebastian Szubert, Aldona Woźniak, Dariusz Szpurek, Stefan Sajdak, Katarzyna Piwocka, Andrzej Tykarski, Krzysztof Książek
Although both incidence and aggressiveness of ovarian malignancy rise with age, the exact reason for this tendency, in particular the contribution of senescent cells, remains elusive. In this project we found that the patient's age determines the frequency of intraperitoneal metastases of ovarian cancer. Moreover, we documented that senescent human peritoneal mesothelial cells (HPMCs) stimulate proliferation, migration and invasion of ovarian cancer cells in vitro, and that this effect is related to both the activity of soluble agents released to the environment by these cells and direct cell-cell contact...
December 29, 2016: Cell Death & Disease
https://www.readbyqxmd.com/read/28029338/vasculogenic-mimicry-in-malignant-mesothelioma-an-experimental-and-immunohistochemical-analysis
#12
Emily Pulford, Ashleigh Hocking, Kim Griggs, James McEvoy, Claudine Bonder, Douglas W Henderson, Sonja Klebe
Vasculogenic mimicry, the process in which cancer cells form angiomatoid structures independent of or in addition to host angiogenesis has been recorded in several otherwise non-endothelial malignant neoplasms. This study describes evidence of routine vascular mimicry by human mesothelioma cell lines in vitro, when the cell lines are cultured alone or co-cultured with human umbilical vascular endothelial cells, with the formation of angiomatoid tubular networks. Vasculogenic mimicry is also supported by immunohistochemical demonstration of human-specific anti-mitochondria antibody labelling of tumour-associated vasculature of human mesothelioma cells xenotransplanted into nude mice, and by evidence of vascular mimicry in some biopsy samples of human malignant mesotheliomas...
October 28, 2016: Pathology
https://www.readbyqxmd.com/read/28007619/malignant-mesothelioma-biomarkers-from-discovery-to-use-in-clinical-practise-for-diagnosis-monitoring-screening-and-treatment
#13
REVIEW
Jenette Creaney, Bruce W S Robinson
Malignant pleural mesothelioma is a highly aggressive tumour associated with asbestos exposure. There are few effective treatment options for mesothelioma and patients have a very poor prognosis with a median survival of less than 12 months from diagnosis. Biomarkers have been proposed as a cost-effective means of cancer management and the search for a mesothelioma biomarker has been on-going for the past thirty years. Many traditional soluble (glyco)-protein biomarkers have been evaluated over this time and an ever increasing list of new biomarkers, including mRNA, DNA, miRNA and antibodies, are being reported from biomarker discovery projects...
December 19, 2016: Chest
https://www.readbyqxmd.com/read/27984124/loss-of-brca1-associated-protein-1-bap1-expression-is-rare-in-non-small-cell-lung-cancer
#14
Daniel Owen, Brandon S Sheffield, Diana Ionescu, Andrew Churg
BRCA1-associated protein 1 (BAP1) is a tumor suppressor gene involved in regulation of the cell cycle, cellular differentiation, repair of DNA damage and apoptosis. In the distinction of malignant mesothelioma from benign mesothelial proliferations, immunohistochemical loss of BAP1, the protein expressed by the BAP1 gene, has proven highly specific for malignant mesothelioma. However, few studies have investigated the rate of BAP1 loss in tumors that commonly metastasize to the pleura. Our objective is to determine the rate of BAP1 loss in non-small cell lung cancer (NSCLC)...
October 28, 2016: Human Pathology
https://www.readbyqxmd.com/read/27957426/mesothelial-inclusions-in-pelvic-lymph-nodes-initially-diagnosed-as-metastatic-prostate-cancer-the-utility-of-second-opinions-and-genomic-testing-in-the-setting-of-unexpected-results
#15
Fadi Joudi, Bela S Denes, Carolyn Mies, Alan W Shindel
Benign mesothelial inclusions in pelvic lymph nodes may be mistaken for metastatic disease in the setting of pelvic malignancy. In this case-report a patient with Low-Risk prostate cancer (confirmed by biopsy and genomic testing) underwent radical prostatectomy with pelvic lymph node dissection. The initial pathological diagnosis was organ-confined Gleason 3 + 3 = 6 cancer with metastasis to a pelvic lymph node. Upon review of the pathological specimen and immunohistochemical staining the lymph node tissue concerning for metastatic disease was recharacterized as mesothelial in origin...
January 2017: Urology Case Reports
https://www.readbyqxmd.com/read/27956272/vasculogenic-mimicry-in-malignant-mesothelioma-an-experimental-and-immunohistochemical-analysis
#16
Emily Pulford, Ashleigh Hocking, Kim Griggs, James McEvoy, Claudine Bonder, Douglas W Henderson, Sonja Klebe
Vasculogenic mimicry, the process in which cancer cells form angiomatoid structures independent of or in addition to host angiogenesis has been recorded in several otherwise non-endothelial malignant neoplasms. This study describes evidence of routine vascular mimicry by human mesothelioma cell lines in vitro, when the cell lines are cultured alone or co-cultured with human umbilical vascular endothelial cells, with the formation of angiomatoid tubular networks. Vasculogenic mimicry is also supported by immunohistochemical demonstration of human-specific anti-mitochondria antibody labelling of tumour-associated vasculature of human mesothelioma cells xenotransplanted into nude mice, and by evidence of vascular mimicry in some biopsy samples of human malignant mesotheliomas...
December 2016: Pathology
https://www.readbyqxmd.com/read/27907819/giant-primary-malignant-mesothelioma-of-the-liver-a-case-report
#17
Ruba Haji Ali, Mohamad Khalife, Ghina El Nounou, Ruba Zuhri Yafi, Hussein Nassar, Zeinab Aidibe, Randa Raad, Rania Abou Eid, Walid Faraj
INTRODUCTION: Malignant mesothelioma is a rare neoplasm of mesothelial cells arising most frequently in the pleura or peritoneum and less frequently in the liver. CASE PRESENTATION: We present a case of primary hepatic mesothelioma of 41year old woman. She had no history of asbestos exposure or cancer. Abdominal computed tomography (CT) showed 21cm intrahepatic mass in the right lobe with many cystic lesions and few small calcifications. Pathology showed a biphasic cellular pattern...
November 11, 2016: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/27900005/fluoro-edenite-induces-fibulin-3-overexpression-in-non-malignant-human-mesothelial-cells
#18
Venerando Rapisarda, Rossella Salemi, Andrea Marconi, Carla Loreto, Adriana C Graziano, Venera Cardile, Maria S Basile, Saverio Candido, Luca Falzone, Demetrios A Spandidos, Concettina Fenga, Massimo Libra
Exposure to asbestos is associated with the development of mesothelioma. In addition to asbestos, other fibers have been identified as risk factors for malignant and non-malignant diseases of the lungs. Among these, fluoro-edenite (FE) was found in patients from Biancavilla (Sicily, Italy) with pleural and lung disease, suggesting its role for tumor expansion. In this context, the identification of early biomarkers useful for the diagnosis of cancer is mandatory. Fibulin-3 represents an important marker for the diagnosis of mesothelioma...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27895076/mesothelial-cells-create-a-novel-tissue-niche-that-facilitates-gastric-cancer-invasion
#19
Masamitsu Tanaka, Sei Kuriyama, Go Itoh, Daichi Maeda, Akiteru Goto, Yutaro Tamiya, Kazuyoshi Yanagihara, Masakazu Yashiro, Namiko Aiba
Peritoneal mesothelial cells (PMC) cover organ surfaces in the abdominal cavity. In this study, lineage tracing revealed that the PMCs guide cancer cell invasion in the gastric wall and in peritoneal metastatic lesions. Serosal PMCs covering the stomach surface entered the gastric wall to create a novel niche that favored gastric cancer cell invasion. PMC infiltration was induced by incorporation of cancer cell-derived, Wnt3a-containing extracellular vesicles. Infiltrated PMCs in turn promoted subserosal invasion of cancer cells...
November 28, 2016: Cancer Research
https://www.readbyqxmd.com/read/27863439/re-purposing-of-curcumin-as-an-anti-metastatic-agent-for-the-treatment-of-epithelial-ovarian-cancer-in-vitro-model-using-cancer-stem-cell-enriched-ovarian-cancer-spheroids
#20
Misi He, Dong Wang, Dongling Zou, Chen Wang, Bruno Lopes-Bastos, Wen G Jiang, John Chester, Qi Zhou, Jun Cai
Malignant epithelial ovarian cancer (EOC) spheroids high frequently are detected in the malignant ascites of the patients with the extensive peritoneal metastasis of ovarian cancer, which represent a significant obstacle to efficacious treatment. Clinical data also suggested that EOC spheroids play a putative role in the development of chemoresistance. Since standard surgery and conventional chemotherapy is the only available treatment, there is an urgent need to identify a more effective therapeutic strategy...
November 16, 2016: Oncotarget
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