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https://www.readbyqxmd.com/read/29191973/blocking-the-feedback-loop-between-neuroendocrine-differentiation-and-macrophages-improves-the-therapeutic-effects-of-enzalutamide-mdv3100-on-prostate-cancer
#1
Chao Wang, Guang Peng, Hai Huang, Fei Liu, De-Pei Kong, Ke-Qin Dong, Li-He Dai, Zhe Zhou, Kai-Jian Wang, Jun Yang, Yan-Qiong Cheng, Xu Gao, Min Qu, Hongru Wang, Feng Zhu, Qin-Qin Tian, Dan Liu, Li Cao, Xingang Cui, Chuanliang Xu, Dan-Feng Xu, Yinghao Sun
PURPOSE: Androgen-deprivation therapy (ADT), including enzalutamide, induces resistance in prostate cancer (PCa); ADT resistance is associated with neuroendocrine differentiation (NED) and tumor-associated macrophages (TAMs). This study aimed to investigate the association between enzalutamide-induced NED and TAMs and its mechanism. EXPERIMENTAL DESIGN: The association between enzalutamide-induced NED and TAMs was investigated by immunohistochemistry using PCa tissues, enzalutamide-resistant mouse xenografts and a co-culture system...
November 30, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/29133142/dedifferentiated-endometrial-carcinomas-with-neuroendocrine-features-a-clinicopathologic-immunohistochemical-and-molecular-genetic-study
#2
Iñigo Espinosa, Antonio De Leo, Emanuela D'Angelo, Juan M Rosa-Rosa, Marina Corominas, Alan Gonzalez, José Palacios, Jaime Prat
Undifferentiated endometrial carcinoma is an aggressive type of uterine cancer which is occasionally associated with a low-grade endometrioid carcinoma component. This combination is referred to as "dedifferentiated endometrioid endometrial carcinoma." Neuroendocrine expression may occur in undifferentiated endometrial carcinoma but its significance in dedifferentiated endometrial carcinomas is unknown. To gain insight into the pathogenesis of these tumors we have analyzed the immunophenotype (ARID1A, MLH1, PMS2, MSH2, MSH6, p53, b-catenin, SMARCB1, synaptophysin, chromogranin A, and CD56) and mutational status (PTEN, KRAS, PIK3CA, TP53 and POLE) of 4 dedifferentiated endometrial carcinomas with strong and diffuse neuroendocrine expression...
November 10, 2017: Human Pathology
https://www.readbyqxmd.com/read/28937365/immunohistochemical-characterization-of-glandular-elements-in-glandular-cardiac-myxoma-study-of-six-cases
#3
Devajit Nath, Sudheer Arava, Ruma Ray, Amol Kumar Bhoje, Rachit Saxena, Shiv Kumar Chaudhary
Back ground: Glandular cardiac myxoma has varying clinical presentation with uncertain histogenesis and debatable immunohistochemical profile. Glandular epithelial differentiations are rare phenomenon known to be present as an intrinsic component of the tumor. The origin of the glands has been attributed to epithelial differentiation of a totipotent cardiomyogenic precursor cells or the entrapped foregut rests in the tumor. MATERIALS AND METHODS: Retrospective study includes six cases of glandular cardiac myxoma collected over a perior of 4 years...
July 2017: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/28905209/expression-differences-of-genes-in-the-pi3k-akt-wnt-b-catenin-shh-notch-and-mapk-signaling-pathways-in-cd34-hematopoietic-cells-obtained-from-chronic-phase-patients-with-chronic-myeloid-leukemia-and-from-healthy-controls
#4
R de Cássia Viu Carrara, A M Fontes, K J Abraham, M D Orellana, S K Haddad, P V B Palma, R A Panepucci, M A Zago, D T Covas
PURPOSE: The fusion gene BRC-ABL has an important role to the progression of chronic myeloid leukemia (CML) and several signaling pathways have been characterized as responsible for the terminal blastic phase (BP). However, the initial phase, the chronic phase (CP), is long lasting and there is much yet to be understood about the critical role of BRC-ABL in this phase. This study aims to evaluate transcriptional deregulation in CD34+ hematopoietic cells (CD34+ cells) from patients with untreated newly diagnosed CML compared with CD34+HC from healthy controls...
September 13, 2017: Clinical & Translational Oncology
https://www.readbyqxmd.com/read/28802099/cancer-associated-fibroblasts-autophagy-enhances-progression-of-triple-negative-breast-cancer-cells
#5
Mengchuan Wang, Jian Zhang, Yizhe Huang, Shufeng Ji, Guoli Shao, Shaobo Feng, Danxun Chen, Kankan Zhao, Zixiang Wang, Aiguo Wu
BACKGROUND Cancer-associated fibroblasts (CAFs) are key factors in malignant tumor initiation, progression, and metastasis. However, the effect of CAFs autophagy on triple-negative breast cancer (TNBC) cells is not clear. In this study, the growth effect of TNBC cells regulated by CAFs autophagy was evaluated. MATERIAL AND METHODS CAFs were obtained from invasive TNBC tumors and identified by Western blot and immunofluorescence staining assay. CAFs were co-cultured with TNBC cells, and migration and invasion were evaluated by Matrigel-coated Transwell and Transwell inserts...
August 12, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28740751/dapk1-as-an-independent-prognostic-marker-in-liver-cancer
#6
Ling Li, Libin Guo, Qingshui Wang, Xiaolong Liu, Yongyi Zeng, Qing Wen, Shudong Zhang, Hang Fai Kwok, Yao Lin, Jingfeng Liu
The death-associated protein kinase 1 (DAPK1) can act as an oncogene or a tumor suppressor gene depending on the cellular context as well as external stimuli. Our study aims to investigate the prognostic significance of DAPK1 in liver cancer in both mRNA and protein levels. The mRNA expression of DAPK1 was extracted from the Gene Expression Omnibus database in three independent liver cancer datasets while protein expression of DAPK1 was detected by immunohistochemistry in our Chinese liver cancer patient cohort...
2017: PeerJ
https://www.readbyqxmd.com/read/28717623/chondrocytes-treated-with-different-shock-wave-devices
#7
Angela Notarnicola, Florenzo Iannone, Giuseppe Maccagnano, Nuniza Lacarpia, Dorotea Bizzoca, Biagio Moretti
BACKGROUND: Shock wave treatment is used for several orthopedic diseases and there are different devices available. Until now, there have been no experimental studies on the effects of these different generators. METHODS: We carried out an experimental study to compare the effects of three focused generators (electro-magnetic, piezoelectric and electro-hydraulic) as well as a radial generator on healthy and osteoarthritis chondrocytes. RESULTS: By the analysis of our results, we may exclude significant differences between the different generators, even though there is a greater action specificity for electro-magnetic and piezoelectric generators...
January 2017: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/28716029/foxp3-promotes-tumor-growth-and-metastasis-by-activating-wnt-%C3%AE-catenin-signaling-pathway-and-emt-in-non-small-cell-lung-cancer
#8
Shucai Yang, Yi Liu, Ming-Yue Li, Calvin S H Ng, Sheng-Li Yang, Shanshan Wang, Chang Zou, Yujuan Dong, Jing Du, Xiang Long, Li-Zhong Liu, Innes Y P Wan, Tony Mok, Malcolm J Underwood, George G Chen
BACKGROUND: The role of cancer cell FOXP3 in tumorigenesis is conflicting. We aimed to study FOXP3 expression and regulation, function and clinical implication in human non-small cell lung cancer (NSCLC). METHODS: One hundred and six patients with histologically-confirmed NSCLC who underwent surgery were recruited for the study. Tumor samples and NSCLC cell lines were used to examine FOXP3 and its related molecules. Various cell functions related to tumorigenesis were performed...
July 17, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28704345/the-effects-and-possible-mechanisms-of-puerarin-to-treat-uterine-fibrosis-induced-by-ischemia-reperfusion-injury-in-rats
#9
Lin Lin, Yi He, Jiashu Zhang, Qi Liu, Lixia Wang
BACKGROUND Tissues fibrosis is caused by ischemia-reperfusion injury (IRI) and results in organ dysfunction. In this study, we aimed to investigate whether fibrosis occurs after uterine ischemia-reperfusion injury, and to investigate the effects of puerarin (Pur) on the fibrosis process in rats. MATERIAL AND METHODS Twenty-four female Wistar rats were randomly divided into three groups (8 in each group): the control group rats only received operation without uterine ischemic, the IRI group and the IRI + Pur group rats received 30-minutes ischemia and 2-weeks of reperfusion...
July 13, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28659575/interaction-of-tankyrase-and-peroxiredoxin-ii-is-indispensable-for-the-survival-of-colorectal-cancer-cells
#10
Dong Hoon Kang, Doo Jae Lee, Sunmi Lee, So-Young Lee, Yukyung Jun, Yerin Kim, Youngeun Kim, Ju-Seog Lee, Dae-Kee Lee, Sanghyuk Lee, Eek-Hoon Jho, Dae-Yeul Yu, Sang Won Kang
Mammalian 2-Cys peroxiredoxin (Prx) enzymes are overexpressed in most cancer tissues, but their specific signaling role in cancer progression is poorly understood. Here we demonstrate that Prx type II (PrxII) plays a tumor-promoting role in colorectal cancer by interacting with a poly(ADP-ribose) polymerase (PARP) tankyrase. PrxII deletion in mice with inactivating mutation of adenomatous polyposis coli (APC) gene reduces intestinal adenomatous polyposis via Axin/β-catenin axis and thereby promotes survival...
June 28, 2017: Nature Communications
https://www.readbyqxmd.com/read/28621236/dynamic-soluble-changes-in-svegfr1-hgf-and-vegf-promote-chemotherapy-and-bevacizumab-resistance-a-prospective-translational-study-in-the-becox-gemcad-09-01-trial
#11
Estela Pineda, A Salud, E Vila-Navarro, M J Safont, Beatriz Llorente, J Aparicio, R Vera, P Escudero, E Casado, C Bosch, U Bohn, R Pérez-Carrión, A Carmona, J R Ayuso, T Ripollés, R Bouzas, M Gironella, X García-Albéniz, J Feliu, J Maurel
Despite initial responsiveness, acquired resistance to both bevacizumab and chemotherapy in metastatic colorectal cancer is universal. We have recently published that in vitro, chronically oxaliplatin resistance upregulates soluble vascular endothelial growth factor receptor 1, downregulates vascular endothelial growth factor, and also promotes c-MET, b-catenin/transcription factor 4, and AKT activation. We tested whether variation in three serum biomarkers such as the natural c-MET ligand (hepatocyte growth factor), soluble vascular endothelial growth factor receptor 1, and vascular endothelial growth factor-A was associated with efficacy in metastatic colorectal cancer patients treated in the prospective BECOX study...
June 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28618047/focal-%C3%AE-catenin-mutation-identified-on-formalin-fixed-and-paraffin-embedded-inflammatory-hepatocellular-adenomas
#12
Joan Saldarriaga, Bettina Bisig, Gabrielle Couchy, Claire Castain, Jessica Zucman-Rossi, Charles Balabaud, Christine Sempoux, Paulette Bioulac-Sage
The identification of hepatocellular adenoma (HCA) with mutation in exon 3 of the CTNNB1 gene encoding for β-catenin is clinically relevant due to a higher risk of malignant transformation. Inflammatory HCA (IHCA) can exhibit β-catenin activation (β-IHCA). We report two cases with multiple IHCA in which focal β-catenin activation has been found in one of the IHCA. In both cases, the diagnosis of IHCA was confirmed on the resected nodules by routine stains, immunohistochemical detection of C-reactive protein (CRP) and molecular biology on frozen material...
June 15, 2017: Histopathology
https://www.readbyqxmd.com/read/28611108/wnt-%C3%AE-catenin-signaling-contributes-to-tumor-malignancy-and-is-targetable-in-gastrointestinal-stromal-tumor
#13
Shan Zeng, Adrian M Seifert, Jennifer Q Zhang, Michael J Cavnar, Teresa S Kim, Vinod P Balachandran, Juan A Santamaria-Barria, Noah A Cohen, Michael J Beckman, Benjamin D Medina, Ferdinand Rossi, Megan H Crawley, Jennifer K Loo, Joanna H Maltbaek, Peter Besmer, Cristina R Antonescu, Ronald P DeMatteo
Gastrointestinal stromal tumor (GIST) is the most common type of sarcoma and usually harbors either a KIT or PDGFRA mutation. However, the molecular basis for tumor malignancy is not well defined. Although the Wnt/β-catenin signaling pathway is important in a variety of cancers, its role in GIST is uncertain. Through analysis of nearly 150 human GIST specimens, we found that some human GISTs expressed β-catenin and contained active, dephosphorylated nuclear β-catenin. Furthermore, advanced human GISTs expressed reduced levels of the Wnt antagonist DKK4...
September 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/28600477/targeting-the-wnt-pathway-and-cancer-stem-cells-with-anti-progastrin-humanized-antibodies-as-a-potential-treatment-for-k-ras-mutated-colorectal-cancer
#14
Alexandre Prieur, Monica Cappellini, Guillaume Habif, Marie-Paule Lefranc, Thibault Mazard, Eric Morency, Jean-Marc Pascussi, Maud Flacelière, Nathalie Cahuzac, Bérengère Vire, Benjamin Dubuc, Amandine Durochat, Pierre Liaud, Jérémy Ollier, Caroline Pfeiffer, Sophie Poupeau, Véronique Saywell, Chris Planque, Eric Assenat, Frédéric Bibeau, Jean-François Bourgaux, Pascal Pujol, Alain Sézeur, Marc Ychou, Dominique Joubert
Purpose: Patients with metastatic colorectal cancer suffer from disease relapse mainly due to cancer stem cells (CSC). Interestingly, they have an increased level of blood progastrin, a tumor-promoting peptide essential for the self-renewal of colon CSCs, which is also a direct β-catenin/TCF4 target gene. In this study, we aimed to develop a novel targeted therapy to neutralize secreted progastrin to inhibit Wnt signaling, CSCs, and reduce relapses.Experimental Design: Antibodies (monoclonal and humanized) directed against progastrin were produced and selected for target specificity and affinity...
September 1, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28472810/the-long-non-coding-rna-crnde-promotes-colorectal-carcinoma-progression-by-competitively-binding-mir-217-with-tcf7l2-and-enhancing-the-wnt-%C3%AE-catenin-signaling-pathway
#15
Bo Yu, Xuan Ye, Qiong Du, Bin Zhu, Qing Zhai, Xin-Xiang Li
BACKGROUND/AIMS: The long non-coding RNA colorectal neoplasia differentially expressed (CRNDE) contributes to the proliferation and migration of tumors. However, its molecular mechanism underlying gastric cancer remains unknown. In the present study, we investigated whether CRNDE was involved in the development of colorectal cancer via the binding of microRNA (miR)-217 with transcription factor 7-like 2 (TCF7L2) to enhance the Wnt signaling pathway. METHODS: Quantitative polymerase chain reaction was used to detect CRNDE, miR-217 and TCF7L2 in colorectal cancer tissues and cells...
2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28382841/hepatocellular-carcinoma-in-fanconi-bickel-syndrome
#16
Jennifer Pogoriler, Allison F O'Neill, Stephan D Voss, Robert C Shamberger, Antonio R Perez-Atayde
Fanconi-Bickel syndrome is a rare autosomal recessive disorder due to mutations in the facilitative glucose transporter 2 ( GLUT2 or SLC2A2) gene resulting in excessive glycogen storage predominantly in the liver and kidney. Previous case reports of this condition have described liver biopsies with glycogen storage and variable steatosis and/or fibrosis. Unlike in other types of glycogen storage disease, hepatocellular adenomas and carcinomas have not been described to date in this syndrome. A 6-year-old boy with consanguineous parents had short stature, poorly controlled rickets, hepatosplenomegaly, and renal tubular dysfunction clinically consistent with Fanconi-Bickel Syndrome...
January 1, 2017: Pediatric and Developmental Pathology
https://www.readbyqxmd.com/read/28314302/kras-mutant-status-may-be-associated-with-distant-recurrence-in-early-stage-rectal-cancer
#17
Michail Sideris, Jane Moorhead, Salvador Diaz-Cano, Amyn Haji, Savvas Papagrigoriadis
BACKGROUND/AIM: Total mesorectal excision combined with neo-adjuvant chemoradiotherary (CRT) and adjuvant chemotherapy, has been the standard treatment of locally advanced rectal cancer (LARC). Although TNM (Tumor, Node, Metastasis) classification for malignant Tumors is still the cornerstone in rectal cancer staging, there has been an effort to identify molecular biomarkers with additional prognostic or predictive value. MATERIALS AND METHODS: We retrospectively analyzed molecular biomarkers on prospectively collected histological specimens and clinical data from a cohort of 135 consecutive rectal cancer cases who underwent radical excision in a tertiary center between 2011-2014 (males=87, females=48, age range=22-89 years, mean=64,67 years, SD=13...
March 2017: Anticancer Research
https://www.readbyqxmd.com/read/28210516/immunohistochemical-investigation-of-her-akt-mtor-pathway-and-cellular-adhesion-molecules-in-urothelial-carcinomas
#18
Nikolaos Koletsas, Triantafyllia Koletsa, Spyros Choidas, Konstantinos Anagnostopoulos, Stavros Touloupidis, Thomas Zaramboukas, Georgia Raptou, Nikolaos Papadopoulos, Maria Lambropoulou
Background. Several investigators have suggested the possibility that the expression of both EGFR and HER2 could be utilized for molecularly targeted therapy in urinary bladder cancer. We tried to evaluate the expression of HER2 and EGFR and activation of the AKT/PTEN/mTOR pathway in urothelial carcinomas and if there is any association between them and cellular adhesion molecules (CAMs). Materials and Methods. Forty-one paraffin-embedded urothelial cancer tissue blocks were collected. Immunostains for HER2, EGFR, MIB1, phospho-AKT, PTEN, phospho-mTOR, e-cadherin, p-cadherin, and b-catenin were performed on tissue microarrays sections...
2017: Pathology Research International
https://www.readbyqxmd.com/read/28209947/forkhead-box-protein-j1-foxj1-is-overexpressed-in-colorectal-cancer-and-promotes-nuclear-translocation-of-%C3%AE-catenin-in-sw620-cells
#19
Kuiliang Liu, Jianghao Fan, Jing Wu
BACKGROUND FOXJ1, which is a forkhead transcription factor, has been previously studied mostly as a ciliary transcription factor. The role of FOXJ1 in cancer progression is still elusive and controversial. In the present study, the effect of FOXJ1 in progression of colorectal cancer (CRC) was investigated. MATERIAL AND METHODS The pattern of FOXJ1 expression was investigated using the method of immunohistochemistry (IHC) in a tissue microarray (TMA) incorporating 50 pairs of colon cancer specimens and adjacent normal tissue...
February 17, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28133318/-a-case-report-of-an-undifferentiated-pancreatic-carcinoma-diagnosed-as-a-solid-pseudopapillary-neoplasm-before-surgery
#20
Hisataka Matsuo, Hisashi Ikoma, Ryo Morimura, Tomohiro Arita, Toshiyuki Kosuga, Hirotaka Konishi, Yasutoshi Murayama, Shuhei Komatsu, Atsushi Shiozaki, Yoshiaki Kuriu, Masayoshi Nakanishi, Daisuke Ichikawa, Hitoshi Fujiwara, Kazuma Okamoto, Eigo Otsuji
A 37-year-old man visited a previous hospital because of left abdominal pain. A contrast-enhanced CT scan revealed a 7 cm solid tumor in the pancreas body, and the patient was referred to our hospital. EUS-FNA showed that the tumor cells were positive for b-catenin in the nuclei, as well as for CD10 and CD56. On the other hand, the cells were negative for chromogranin A and synaptophysin. This is the typical immunohistochemical pattern of a solid pseudopapillary neoplasm(SPN). Therefore, we diagnosed this case as SPN before surgery...
November 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
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