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https://www.readbyqxmd.com/read/28445233/preclinical-models-for-translational-sarcoma-research
#1
Rainer Hamacher, Sebastian Bauer
PURPOSE OF REVIEW: Sarcoma is a basket term for mesenchymal tumors for which more than 75 genetically and histologically distinct subtypes are recognized. Therapeutic progress has largely been achieved with classical chemotherapeutic drugs that were tested in empirical clinical trials. However, outcome in metastatic patients remains poor and with few exceptions numerous trials have failed or only provided limited improvement in recent years. RECENT FINDINGS: Given the genomic heterogeneity, preclinical model systems will be indispensable to identify new molecular targets and to prioritize drugs and drug combinations...
April 25, 2017: Current Opinion in Oncology
https://www.readbyqxmd.com/read/28442298/how-to-study-and-overcome-tumor-heterogeneity-with-circulating-biomarkers-the-breast-cancer-case
#2
REVIEW
Valentina Appierto, Serena Di Cosimo, Carolina Reduzzi, Valentina Pala, Vera Cappelletti, Maria Grazia Daidone
Breast cancer ranks first among female cancer-related deaths in Western countries. As the primary tumor can often be controlled by surgical resection, the survival of women with breast cancer is closely linked to the incidence of distant metastases. Molecular screening by next generation sequencing highlighted the spatial and temporal heterogeneity of solid tumors as well as the clonal evolution of cancer cells during progression and under treatment pressure. Such findings question whether an optimal assessment of disease progression and a screening for druggable mutations should be based on molecular features of primary or recurrent/metastatic lesions and therefore represent a crucial element for failure or success of personalized medicine...
April 22, 2017: Seminars in Cancer Biology
https://www.readbyqxmd.com/read/28441455/gene-expression-study-and-pathway-analysis-of-histological-subtypes-of-intestinal-metaplasia-that-progress-to-gastric-cancer
#3
Osmel Companioni, José Miguel Sanz-Anquela, María Luisa Pardo, Eulàlia Puigdecanet, Lara Nonell, Nadia García, Verónica Parra Blanco, Consuelo López, Victoria Andreu, Miriam Cuatrecasas, Maddi Garmendia, Javier P Gisbert, Carlos A Gonzalez, Núria Sala
BACKGROUND: Intestinal metaplasia (IM) is a precursor lesion that precedes gastric cancer (GC). There are two IM histological subtypes, complete (CIM) and incomplete (IIM), the latter having higher progression rates to GC. This study was aimed at analysing gene expression and molecular processes involved in the progression from normal mucosa to IM, and also from IM subtypes to GC. METHODOLOGY: We used expression data to compare the transcriptome of healthy gastric mucosa to that of IM not progressing to GC, and the transcriptome of IM subtypes that had progressed to GC to those that did not progress...
2017: PloS One
https://www.readbyqxmd.com/read/28439237/biomarkers-of-osteosarcoma-chondrosarcoma-and-ewing-sarcoma
#4
REVIEW
Francesco R Evola, Luciano Costarella, Vito Pavone, Giuseppe Caff, Luca Cannavò, Andrea Sessa, Sergio Avondo, Giuseppe Sessa
Osteosarcoma is the most frequent malignant bone neoplasm, followed by chondrosarcoma and Ewing sarcoma. The diagnosis of bone neoplasms is generally made through histological evaluation of a biopsy. Clinical and radiological features are also important in aiding diagnosis and to complete the staging of bone cancer. In addition to these, there are several non-specific serological or specific molecular markers for bone neoplasms. In bone tumors, molecular markers increase the accuracy of the diagnosis and assist in subtyping bone tumors...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28432480/predictive-value-of-18-f-fdg-pet-ct-for-axillary-lymph-node-metastasis-in-invasive-ductal-breast-cancer
#5
Bong-Il Song, Hae Won Kim, Kyoung Sook Won
BACKGROUND: This study assessed whether primary tumor maximum standardized uptake value (pSUVmax) measured by (18)F-fluoro-2-deoxy-D-glucose ((18)F-FDG) positron emission tomography/computed tomography (PET/CT) could improve the prediction of axillary lymph node (ALN) metastasis in invasive ductal breast cancer (IDC). METHODS: In this study, 128 IDC patients who underwent pretreatment (18)F-FDG PET/CT and surgical resection of primary tumor with sentinel lymph node biopsy, ALN dissection, or both were analyzed...
April 21, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28431273/chromosomal-instability-in-gastric-cancer-biology
#6
REVIEW
Saffiyeh Saboor Maleki, Christoph Röcken
Gastric cancer (GC) is the fifth most common cancer in the world and accounts for 7% of the total cancer incidence. The prognosis of GC is dismal in Western countries due to late diagnosis: approximately 70% of the patients die within 5 years following initial diagnosis. Recently, integrative genomic analyses led to the proposal of a molecular classification of GC into four subtypes, i.e.,microsatellite-instable, Epstein-Barr virus-positive, chromosomal-instable (CIN), and genomically stable GCs. Molecular classification of GC advances our knowledge of the biology of GC and may have implications for diagnostics and patient treatment...
April 18, 2017: Neoplasia: An International Journal for Oncology Research
https://www.readbyqxmd.com/read/28430637/clinical-utility-of-circulating-cell-free-epstein-barr-virus-dna-in-patients-with-gastric-cancer
#7
Katsutoshi Shoda, Daisuke Ichikawa, Yuji Fujita, Kiyoshi Masuda, Hidekazu Hiramoto, Junichi Hamada, Tomohiro Arita, Hirotaka Konishi, Toshiyuki Kosuga, Shuhei Komatsu, Atsushi Shiozaki, Kazuma Okamoto, Issei Imoto, Eigo Otsuji
Recent comprehensive molecular subtyping of gastric cancer (GC) identified Epstein-Barr virus (EBV)-positive tumors as a subtype with distinct salient molecular and clinical features. In this study, we aimed to determine the potential utility of circulating cell-free EBV DNA as a biomarker for the detection and/or monitoring of therapeutic response in patients with EBV-associated gastric carcinoma (EBVaGC). The EBV genes-to-ribonuclease P RNA component H1 ratios (EBV ratios) in the GC tumors and plasma samples were determined by quantitative real-time polymerase chain reaction in 153 patients with GC, including 14 patients with EBVaGC diagnosed by the conventional method...
February 24, 2017: Oncotarget
https://www.readbyqxmd.com/read/28429898/subclassification-of-the-molecular-types-of-breast-cancer-based-on-the-expression-of-immunohistochemical-markers-and-evolution
#8
Aldo Reigosa, David Hardisson, Francisco Sanzi, Eduardo Caleiras, Felipe Saldivia, Angel Fernández
Breast carcinomas have been classified from the molecular point of view into four major groups (Luminal A, Luminal B, HER2 and triple negative). However, these groups are not homogeneous and there is a need to establish subcategories that can be identified by immunohistochemistry (IHC), to better predict prognosis and carry out treatments that are more effective. This study was conducted in 354 patients diagnosed with invasive ductal breast carci- noma. The expression of 22 molecules was analyzed by tissue matrices and the results obtained were compared with molecular classes defined by IHC, according to the expression of estrogen receptor (ER), progesterone receptor (PR) and HER2, and the overall survival...
June 2016: Investigación Clínica
https://www.readbyqxmd.com/read/28429357/inhibition-of-pulmonary-carcinoma-proliferation-or-metastasis-of-mir-218-via-down-regulating-cdcp1-expression
#9
X-J Zeng, Y-H Wu, M Luo, P-G Cong, H Yu
OBJECTIVE: Pulmonary carcinoma is one common malignant tumor with a high risk of recurrence and metastasis. Non-small cell lung cancer (NSCLC) is the most common subtype. As one tumor biomarker, microRNA (miR) has tissue sensitivity and can facilitate oncogene or inhibit tumor suppressor gene. MiR-218 has abnormal expression and can work as one molecular marker for tumors. However, its expression and function mechanism in lung cancer cells have not been fully illustrated. MATERIALS AND METHODS: In vitro cultured pulmonary adenoma A549 cells and normal bronchial epithelial cell line 16HBE were tested for miR-218 expression...
April 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28427506/recent-advances-in-genitourinary-tumors-a-review-focused-on-biology-and-systemic-treatment
#10
REVIEW
Aránzazu González Del Alba, José Ángel Arranz, Javier Puente, María José Méndez-Vidal, Enrique Gallardo, Enrique Grande, Begoña Pérez-Valderrama, Enrique González-Billalabeitia, Martín Lázaro-Quintela, Álvaro Pinto, Nuria Lainez, Josep M Piulats, Emilio Esteban, José Pablo Maroto Rey, Jorge A García, Cristina Suárez
Updated information published up to 2016 regarding major advances in renal cancer, bladder cancer, and prostate cancer is here presented. Based on an ever better understanding of the genetic and molecular alterations that govern the initial pathogenic mechanisms of tumor oncogenesis, an improvement in the characterization and treatment of urologic tumors has been achieved in the past year. According to the Cancer Genome Atlas (ATLAS) project, alterations in the MET pathway are characteristics of type 1 papillary renal cell carcinomas, and activation of NRF2-ARE pathway is associated with the biologically distinct type 2...
May 2017: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/28426752/somatic-copy-number-alterations-in-gastric-adenocarcinomas-among-asian-and-western-patients
#11
Steven E Schumacher, Byoung Yong Shim, Giovanni Corso, Min-Hee Ryu, Yoon-Koo Kang, Franco Roviello, Gordon Saksena, Shouyong Peng, Ramesh A Shivdasani, Adam J Bass, Rameen Beroukhim
Gastric cancer, a leading worldwide cause of cancer mortality, shows high geographic and ethnic variation in incidence rates, which are highest in East Asia. The anatomic locations and clinical behavior also differ by geography, leading to the controversial idea that Eastern and Western forms of the disease are distinct. In view of these differences, we investigated whether gastric cancers from Eastern and Western patients show distinct genomic profiles. We used high-density profiling of somatic copy-number aberrations to analyze the largest collection to date of gastric adenocarcinomas and utilized genotyping data to rigorously annotate ethnic status...
2017: PloS One
https://www.readbyqxmd.com/read/28425758/agreement-between-mri-and-pathologic-analyses-for-determination-of-tumor-size-and-correlation-with-immunohistochemical-factors-of-invasive-breast-carcinoma
#12
Eun Young Yoo, Sang Yu Nam, Hye-Young Choi, Min Ji Hong
Background There may be discordance between tumor size determined by magnetic resonance imaging (MRI) and that observed during pathologic analyses. Purpose To evaluate MRI-pathology concordance of tumor size in patients with invasive breast carcinoma. Material and Methods Data from 307 invasive breast carcinomas were analyzed retrospectively. Preoperative breast MRI was reviewed for size, lesion type, morphology, and dynamic contrast-enhanced tumor kinetics. MRI tumor size was compared with tumor size measurements from the pathologic analysis...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/28424409/clinical-genomic-profiling-to-identify-actionable-alterations-for-investigational-therapies-in-patients-with-diverse-sarcomas
#13
Roman Groisberg, David S Hong, Vijaykumar Holla, Filip Janku, Sarina Piha-Paul, Vinod Ravi, Robert Benjamin, Shreyas Kumar Patel, Neeta Somaiah, Anthony Conley, Siraj M Ali, Alexa B Schrock, Jeffrey S Ross, Philip J Stephens, Vincent A Miller, Shiraj Sen, Cynthia Herzog, Funda Meric-Bernstam, Vivek Subbiah
BACKGROUND: There are currently no United States Food and Drug Administration approved molecularly matched therapies for sarcomas except gastrointestinal stromal tumors. Complicating this is the extreme diversity, heterogeneity, and rarity of these neoplasms. Few therapeutic options exist for relapsed and refractory sarcomas. In clinical practice many oncologists refer patients for genomic profiling hoping for guidance on treatment options after standard therapy. However, a systematic analysis of actionable mutations has yet to be completed...
April 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423671/genome-wide-dna-methylation-analysis-reveals-molecular-subtypes-of-pancreatic-cancer
#14
Nitish Kumar Mishra, Chittibabu Guda
Pancreatic cancer (PC) is the fourth leading cause of cancer deaths in the United States with a five-year patient survival rate of only 6%. Early detection and treatment of this disease is hampered due to lack of reliable diagnostic and prognostic markers. Recent studies have shown that dynamic changes in the global DNA methylation and gene expression patterns play key roles in the PC development; hence, provide valuable insights for better understanding the initiation and progression of PC. In the current study, we used DNA methylation, gene expression, copy number, mutational and clinical data from pancreatic patients...
March 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423635/quantification-of-her2-and-estrogen-receptor-heterogeneity-in-breast-cancer-by-single-molecule-rna-fluorescence-in-situ-hybridization
#15
Laura Annaratone, Michele Simonetti, Erik Wernersson, Caterina Marchiò, Silvano Garnerone, Maria Stella Scalzo, Magda Bienko, Roberto Chiarle, Anna Sapino, Nicola Crosetto
Intra-tumor heterogeneity is a pervasive property of human cancers that poses a major clinical challenge. Here, we describe the characterization, at the transcriptional level, of the intra-tumor topography of two prominent breast cancer biomarkers and drug targets, epidermal growth factor receptor 2 (HER2) and estrogen receptor 1 (ER) in 49 archival breast cancer samples. We developed a protocol for single-molecule RNA FISH in formalin-fixed, paraffin-embedded tissue sections (FFPE-smFISH), which enabled us to simultaneously detect and perform absolute quantification of HER2 and ER mature transcripts in single cells and multiple tumor regions...
March 21, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423598/next-generation-mapping-reveals-novel-large-genomic-rearrangements-in-prostate-cancer
#16
Weerachai Jaratlerdsiri, Eva K F Chan, Desiree C Petersen, Claire Yang, Peter I Croucher, M S Riana Bornman, Palak Sheth, Vanessa M Hayes
Complex genomic rearrangements are common molecular events driving prostate carcinogenesis. Clinical significance, however, has yet to be fully elucidated. Detecting the full range and subtypes of large structural variants (SVs), greater than one kilobase in length, is challenging using clinically feasible next generation sequencing (NGS) technologies. Next generation mapping (NGM) is a new technology that allows for the interrogation of megabase length DNA molecules outside the detection range of single-base resolution NGS...
April 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423575/activated-notch-signaling-augments-cell-growth-in-hepatocellular-carcinoma-via-up-regulating-the-nuclear-receptor-nr4a2
#17
Bo Zhu, Lichun Sun, Wei Luo, Min Li, David H Coy, Long Yu, Wenbo Yu
Hepatocellular carcinoma (HCC) is one of the most malignant cancers. Conventional therapies are limited due to the human liver being such a unique organ and easily showing side-effects. The unclear molecular mechanisms are tough challenges for scientists searching for new and effective anti-HCC targeting drugs. We identified that the nuclear receptor NR4A2 is a novel oncogene in HCC progression. In this study, we show that NR4A2 and the notch recceptor Notch1 were expressed highly in primary HCC tissues and immortal HCC cells by using qPCR, western blot and immuno-histochemistry assays...
April 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28418874/is-there-a-prognostic-value-of-tumor-location-among-chinese-patients-with-colorectal-cancer
#18
Fangqi Liu, Cong Li, Huixun Jia, Li Yang, Yuchen Wu, Jiang Zhao, Sanjun Cai, Ji Zhu, Ye Xu
Differences in epidemiology, pathological features, and molecular pathogeneses have been observed according to primary tumor location in colorectal cancer (CRC). However, predicting CRC survival by tumor location remains controversial. Therefore, we compared the pathological characteristics, molecular features, and prognoses of right-side colon cancer (RCC), left-side colon cancer (LCC), and rectal cancer (RECC) among Chinese patients with CRC. We evaluated 4,426 patients with stage I-III CRC between January 2008 and July 2014from Fudan University Shanghai Cancer Center...
March 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/28418164/molecular-subtyping-of-mammary-like-adenocarcinoma-of-the-vulva-shows-molecular-similarity-to-breast-carcinomas
#19
Basile Tessier-Cloutier, Karama Asleh-Aburaya, Varsha Shah, W Glenn McCluggage, Anna Tinker, C Blake Gilks
AIMS: Mammary-like adenocarcinoma (MLA) of the vulva is thought to be derived from vulvar mammary-like glands. We characterized a series of MLA using an immunohistochemical algorithm that identifies the major molecular subtypes of breast cancer. METHODS AND RESULTS: Seven cases of vulval MLA were stained for ER, PR, HER2, Ki-67, EGFR, CK5, nestin and INPP4b. 17 cases of vulval extramammary Paget disease (EMPD), 7 with invasion, were studied for comparison. The median age of patients with MLA was 72 years...
April 18, 2017: Histopathology
https://www.readbyqxmd.com/read/28417335/poor-prognosis-of-patients-with-triple-negative-breast-cancer-can-be-stratified-by-rank-and-rankl-dual-expression
#20
Monica E Reyes, Takeo Fujii, Daniel Branstetter, Savitri Krishnamurthy, Hiroko Masuda, Xiaoping Wang, James M Reuben, Wendy A Woodward, Beatrice J Edwards, Gabriel N Hortobagyi, Debu Tripathy, William C Dougall, Bedrich L Eckhardt, Naoto T Ueno
PURPOSE: As clinical studies have correlated RANK expression levels with survival in breast cancer, and that RANK signaling is dependent on its cognate ligand RANKL, we hypothesized that dual protein expression further stratifies the poor outcome in TNBC. METHODS: RANK mRNA and protein expression was evaluated in TNBC using genomic databases, cell lines and in a tissue microarray of curated primary tumor samples derived from 87 patients with TNBC. RANK expression was evaluated either by Mann-Whitney U test on log-normalized gene expression data or by Student's t test on FACS data...
April 17, 2017: Breast Cancer Research and Treatment
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