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https://www.readbyqxmd.com/read/29348129/genomic-cdkn2a-2b-deletions-in-adult-ph-all-are-adverse-despite-allogeneic-stem-cell-transplantation
#1
Heike Pfeifer, Katharina Raum, Sandra Markovic, Verena Nowak, Stephanie Fey, Julia Obländer, Jovita Pressler, Verena Böhm, Monika Brüggemann, Lydia Wunderle, Andreas Hüttmann, Ralph Wäsch, Joachim Beck, Matthias Stelljes, Andreas Viardot, Fabian Lang, Dieter Hoelzer, Wolf-Karsten Hofmann, Hubert Serve, Christel Weiss, Nicola Goekbuget, Oliver G Ottmann, Daniel Nowak
We investigated the role of copy number alterations to refine risk stratification in adult Philadelphia chromosome positive (Ph)+ ALL treated with tyrosine kinase inhibitors (TKI) and allogeneic stem cell transplantation (aSCT). 97 Ph+ ALL patients (median age 41 years, range 18-64 years) within the prospective multicenter GMALL studies 06/99 (n=8) and 07/2003 (n=89) were analysed. All patients received TKI and aSCT in first complete remission (CR1). Copy number analysis was performed with SNP arrays and validated by multiplex ligation-dependent probe amplification (MLPA)...
January 18, 2018: Blood
https://www.readbyqxmd.com/read/29327718/epithelioid-fibrous-histiocytoma-molecular-characterization-of-alk-fusion-partners-in-23-cases
#2
Brendan C Dickson, David Swanson, George S Charames, Christopher Dm Fletcher, Jason L Hornick
Epithelioid fibrous histiocytoma is a rare and distinctive cutaneous neoplasm. Most cases harbor ALK rearrangement and show ALK overexpression, which distinguish this neoplasm from conventional cutaneous fibrous histiocytoma and variants. SQSTM1 and VCL have previously been shown to partner with ALK in one case each of epithelioid fibrous histiocytoma. The purpose of this study was to examine a large cohort of epithelioid fibrous histiocytomas by next-generation sequencing to characterize the nature and prevalence of ALK fusion partners...
January 12, 2018: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/29325250/-myofibroma-myofibromatosis-a-clinicopathologic-analysis-of-9-cases
#3
Y Fu, W Y Guan, H Y Wu, H Y Wu, Z W Fan, Q Ye, F Q Meng
Objective: To investigate the clinical and histological features, diagnosis and differential diagnosis of myofibroma/myofibromatosis. Methods: The clinical data and pathology features of nine cases of myofibroma/myofibromatosis were collected from August 2011 to November 2016 in Affiliated Drum Tower Hospital, Nanjing University Medical School and Children's Hospital of Nanjing Medical University. Immunohistochemistry(IHC), PDGFRB molecular analysis and ETV6-NTRK3 gene fusion were performed and relevant literature reviewed...
January 8, 2018: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/29311095/5-of-healthy-newborns-have-an-etv6-runx1-fusion-as-revealed-by-dna-based-gipfel-screening
#4
Daniel Schäfer, Marianne Olsen, David Lähnemann, Martin Stanulla, Robert Slany, Kjeld Schmiegelow, Arndt Borkhardt, Ute Fischer
No abstract text is available yet for this article.
January 8, 2018: Blood
https://www.readbyqxmd.com/read/29290585/a-human-ips-model-implicates-embryonic-b-myeloid-fate-restriction-as-developmental-susceptibility-to-b%C3%A2-acute-lymphoblastic-leukemia-associated-etv6-runx1
#5
Charlotta Böiers, Simon E Richardson, Emma Laycock, Alya Zriwil, Virginia A Turati, John Brown, Jason P Wray, Dapeng Wang, Chela James, Javier Herrero, Ewa Sitnicka, Stefan Karlsson, Andrew J H Smith, Sten Erik W Jacobsen, Tariq Enver
ETV6-RUNX1 is associated with childhood acute B-lymphoblastic leukemia (cALL) functioning as a first-hit mutation that initiates a clinically silent pre-leukemia in utero. Because lineage commitment hierarchies differ between embryo and adult, and the impact of oncogenes is cell-context dependent, we hypothesized that the childhood affiliation of ETV6-RUNX1 cALL reflects its origins in a progenitor unique to embryonic life. We characterize the first emerging B cells in first-trimester human embryos, identifying a developmentally restricted CD19-IL-7R+ progenitor compartment, which transitions from a myeloid to lymphoid program during ontogeny...
December 27, 2017: Developmental Cell
https://www.readbyqxmd.com/read/29286563/etv6-ntrk3-in-congenital-mesoblastic-nephroma-a-report-of-the-siop-gpoh-nephroblastoma-study
#6
Christian Vokuhl, Nasenien Nourkami-Tutdibi, Rhoikos Furtwängler, Manfred Gessler, Norbert Graf, Ivo Leuschner
BACKGROUND: Congenital mesoblastic nephroma (MN) is a rare pediatric renal tumor representing approximately 5% of all pediatric renal tumors. Three different types of MN are distinguished histologically: classical, cellular, and mixed. A frequent genetic alteration is the translocation t(12;15) resulting in a fusion of the ETV6 gene on 12p13 and the NTRK3 gene on 15p15 that occurs almost exclusively in cellular MN. The aim of this study was to determine translocation status of a large cohort of MN with respect to tumor subtype and outcome...
December 29, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/29273914/myeloid-neoplasms-with-t-12-22-p13-q12-mn1-evt6-a-systematic-review-of-12-cases
#7
Haigang Shao, Jiannong Cen, Suning Chen, Huiying Qiu, Jinlan Pan
t(12;22)(p13;q12) is a rare but recurrent chromosomal abnormality involving the ETS transcription factor ETV6 and meningioma 1 (MN1) genes. In this study, we analyzed the clinical, cytogenetic, and molecular features of five new patients with the t(12;22)/MN1-EVT6 who presented with acute myeloid leukemia or chronic myelomonocytic leukemia. We subsequently reviewed the literature and identified seven additional cases reported with t(12;22)/MN1-EVT6. Our data suggest that neoplasms carrying the t(12;22)/MN1-ETV6, although rare, can commonly present as myeloid neoplasms at the initial diagnosis, including acute myeloid leukemia (n = 8), myelodysplastic syndrome (n = 2), and myelodysplastic/myeloproliferative neoplasms (n = 2)...
December 22, 2017: Annals of Hematology
https://www.readbyqxmd.com/read/29251639/mammary-analog-secretory-carcinoma-with-etv6-rearrangement-arising-in-the-conjunctiva-and-eyelid
#8
Yongyang Bao, Jiang Li, Yanbo Zhu
Mammary analog secretory carcinoma (MASC) of salivary gland is a recently described neoplasm that morphologically and immunohistochemically resembles secretory carcinoma of the breast. Genetically, both of them harbor ETV-6-NTRK-3 fusion rearrangement. One case of primary MASCs arising from the eyelid is reported. The patient was a 52-year-old man. Microscopically, the tumor exhibited nodular aggregation of solid, tubular, and microcystic/macrocystic structures. Characteristic "colloid-like" eosinophilic secretory material was present within intraluminal spaces...
November 28, 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/29237803/anti-tumor-activity-of-entrectinib-a-pan-trk-ros1-and-alk-inhibitor-in-etv6-ntrk3-positive-acute-myeloid-leukemia
#9
Kristen M Smith, Patrick C Fagan, Elena Pomari, Giuseppe Germano, Chiara Frasson, Colin Walsh, Ian M Silverman, Paolo Bonvini, Gang Li
Activation of tropomyosin receptor kinase (TRK) family tyrosine kinases by chromosomal rearrangement has been shown to drive a wide range of solid tumors and hematologic malignancies. TRK fusions are actionable targets as evidenced by recent clinical trial results in solid tumors. Entrectinib (RXDX-101) is an investigational, orally available, CNS-active, highly potent and selective kinase inhibitor against TRKA/B/C, ROS1 and ALK kinase activities. Here, we demonstrate that TRK kinase inhibition by entrectinib selectively targets preclinical models of TRK fusion-driven hematologic malignancies...
December 13, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/29233972/irf8-dependent-molecular-complexes-control-the-th9-transcriptional-program
#10
Etienne Humblin, Marion Thibaudin, Fanny Chalmin, Valentin Derangère, Emeric Limagne, Corentin Richard, Richard A Flavell, Sandy Chevrier, Sylvain Ladoire, Hélène Berger, Romain Boidot, Lionel Apetoh, Frédérique Végran, François Ghiringhelli
Interferon regulatory factors (IRF) have critical functions in lymphoid development and in immune response regulation. Although many studies have described the function of IRF4 in CD4+ T cells, few have focused on the IRF4 homologue, IRF8. Here, we show that IRF8 is required for Th9 differentiation in vitro and in vivo. IRF8 functions through a transcription factor complex consisting of IRF8, IRF4, PU.1 and BATF, which binds to DNA and boosts Il9 transcription. By contrast, IRF8 deficiency promotes the expression of other genes such as Il4, as IRF8 dimerises with the transcriptional repressor ETV6 and inhibits Il4 expression...
December 12, 2017: Nature Communications
https://www.readbyqxmd.com/read/29233640/rapid-response-to-larotrectinib-loxo-101-in-an-adult-chemotherapy-naive-patients-with-advanced-triple-negative-secretory-breast-cancer-expressing-etv6-ntrk3-fusion
#11
Yosef Landman, Maya Ilouze, Simon Wein, Victoria Neiman, Rinat Yerushalmi, Maxim Yakimov, Nora Ku, Alexa B Schrock, Siraj Ali, Nir Peled
No abstract text is available yet for this article.
November 28, 2017: Clinical Breast Cancer
https://www.readbyqxmd.com/read/29228842/mammary-analogue-secretory-carcinoma-of-the-thyroid-mimicking-locally-advanced-papillary-thyroid-carcinoma-a-rare-case-report
#12
Haihui Liao, Ashraf Khan, Patricia M Miron, Kristine M Cornejo
Mammary analogue secretory carcinoma (MASC) harboring ETV6 gene rearrangements was first described in the salivary gland with a relatively favorable prognosis and a possible molecular therapeutic target with pan-Trk inhibitors. Recently, primary MASC of the thyroid gland has been reported. We report a case of a 4.0 cm MASC arising from the left thyroid of a 58-year-old female with extrathyroidal extension. Initially, it was diagnosed by fine needle aspiration as suspicious for papillary thyroid carcinoma (PTC) and subsequently called a poorly differentiated carcinoma on resection...
December 1, 2017: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/29222283/hereditary-thrombocytopenias-a-growing-list-of-disorders
#13
REVIEW
Patrizia Noris, Alessandro Pecci
The introduction of high throughput sequencing (HTS) techniques greatly improved the knowledge of inherited thrombocytopenias (ITs) over the last few years. A total of 33 different forms caused by molecular defects affecting at least 32 genes have been identified; along with the discovery of new disease-causing genes, pathogenetic mechanisms of thrombocytopenia have been better elucidated. Although the clinical picture of ITs is heterogeneous, bleeding has been long considered the major clinical problem for patients with IT...
December 8, 2017: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/29205457/primary-cutaneous-secretory-carcinoma-a-previously-overlooked-low-grade-sweat-gland-carcinoma
#14
Mar Llamas-Velasco, Thomas Mentzel, Arno Rütten
INTRODUCTION: Twelve cases of primary cutaneous secretory carcinoma (PCSC) have been published, 9 showing ETV6-NTRK3 translocation, a characteristic finding shared with secretory breast carcinoma and mammary analogue secretory carcinoma. CASE REPORT: A 34-year-old female presented a solitary nodule on the right groin. Biopsy revealed a secretory carcinoma staining positive with CK7, CAM5.2, mammaglobulin and S100 and negative with GATA3, CK20, podoplanin, calponin and CDX2...
December 4, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/29177615/etv6-abl1-fusion-combined-with-monosomy-7-in-childhood-b-precursor-acute-lymphoblastic-leukemia
#15
Suguru Uemura, Noriyuki Nishimura, Daiichiro Hasegawa, Akemi Shono, Kimiyoshi Sakaguchi, Hisayuki Matsumoto, Yuji Nakamachi, Jun Saegusa, Takehito Yokoi, Teppei Tahara, Akihiro Tamura, Nobuyuki Yamamoto, Atsuro Saito, Aiko Kozaki, Kenji Kishimoto, Toshiaki Ishida, Nanako Nino, Satoru Takafuji, Takeshi Mori, Kazumoto Iijima, Yoshiyuki Kosaka
ETV6-ABL1 fusion is a rare but recurrent oncogenic lesion found in childhood B-cell precursor acute lymphoblastic leukemia (BCP-ALL), without an established chromosomal abnormality, and is associated with poor outcome. In ETV6-ABL1-positive cases, an in-frame fusion produced by a complex rearrangement results in constitutive chimeric tyrosine kinase activity. Monosomy 7 is also a rare and unfavorable chromosomal abnormality in childhood BCP-ALL. Here, we report a 14-year-old female BCP-ALL patient with ETV6-ABL1 fusion combined with monosomy 7...
November 24, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/29153093/next-generation-sequencing-and-molecular-cytogenetic-characterization-of-etv6-lyn-fusion-due-to-chromosomes-1-8-and-12-rearrangement-in-acute-myeloid-leukemia
#16
Edmond S K Ma, Thomas S K Wan, Chun Hang Au, Dona N Ho, Shing Yan Ma, Margaret H L Ng, Tsun Leung Chan
In a newly diagnosed patient with acute myeloid leukemia (AML) and complex cytogenetics and negative for gene mutations associated with myeloid neoplasms, RNA sequencing by next-generation sequencing (NGS) through a large cancer-related gene panel showed ETV6-LYN leukemic fusion transcript. Breakpoint analysis of the NGS reads showed fusion of exon 5 of the ETV6 gene to exon 8 of the LYN gene. Metaphase fluorescence in situ hybridization (FISH) inferred a four-break rearrangement of three chromosomes, namely 1, 8 and 12...
December 2017: Cancer Genetics
https://www.readbyqxmd.com/read/29148893/reduced-intensity-delayed-intensification-in-standard-risk-pediatric-acute-lymphoblastic-leukemia-defined-by-undetectable-minimal-residual-disease-results-of-an-international-randomized-trial-aieop-bfm-all-2000
#17
Martin Schrappe, Kirsten Bleckmann, Martin Zimmermann, Andrea Biondi, Anja Möricke, Franco Locatelli, Gunnar Cario, Carmelo Rizzari, Andishe Attarbaschi, Maria Grazia Valsecchi, Claus R Bartram, Elena Barisone, Felix Niggli, Charlotte Niemeyer, Anna Maria Testi, Georg Mann, Ottavio Ziino, Beat Schäfer, Renate Panzer-Grümayer, Rita Beier, Rosanna Parasole, Gudrun Göhring, Wolf-Dieter Ludwig, Fiorina Casale, Paul-Gerhardt Schlegel, Giuseppe Basso, Valentino Conter
Purpose Delayed intensification (DI) is an integral part of treatment of childhood acute lymphoblastic leukemia (ALL), but it is associated with relevant toxicity. Therefore, standard-risk patients of trial AIEOP-BFM ALL 2000 (Combination Chemotherapy Based on Risk of Relapse in Treating Young Patients With ALL) were investigated with the specific aim to reduce treatment intensity. Patients and Methods Between July 2000 and July 2006, 1,164 patients (1 to 17 years of age) with standard-risk ALL (defined as the absence of high-risk cytogenetics and undetectable minimal residual disease on days 33 and 78) were randomly assigned to either experimental reduced-intensity DI (protocol III; P-III) or standard DI (protocol II; P-II)...
November 17, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/29142456/secretory-carcinoma-impact-of-translocation-and-gene-fusions-on-salivary-gland-tumor
#18
Ryoko Inaki, Masanobu Abe, Liang Zong, Takahiro Abe, Aya Shinozaki-Ushiku, Tetsuo Ushiku, Kazuto Hoshi
Secretory carcinoma (SC), previously described as mammary analogue secretory carcinoma (MASC), is a recently described salivary gland tumor which morphologically resembles mammary secretory carcinoma. The first description of SC/MASC, reported by Skálová et al. in 2010, was as a rare salivary carcinoma imitating secretory carcinoma of the breast. SC/MASC is a unique salivary gland tumor with morphological overlap with acinic cell carcinoma (AciCC), mucoepidermoid carcinoma (MEC), and adenocarcinoma not otherwise specified (ADC-NOS)...
October 2017: Chinese Journal of Cancer Research, Chung-kuo Yen Cheng Yen Chiu
https://www.readbyqxmd.com/read/29139086/diagnostic-approaches-for-salivary-gland-tumors-with-secretory-and-microcystic-features
#19
Ha Young Woo, Eun Chang Choi, Sun Och Yoon
Secretory carcinoma (SC) of the salivary gland is a new entity that shares the unique morphologic features and cytogenetic characteristics of the ETV6-NTRK3 fusion gene with its breast counterpart. Before identification of SC of the salivary gland, it was most frequently diagnosed as acinic cell carcinoma (AciCC). We retrospectively reviewed our own database of salivary gland tumors harboring microcystic and papillary architecture and/or secretory features that were originally diagnosed as AciCC. We selected nine cases of AciCC showing diffuse S-100 expression on immunohistochemistry (IHC)...
November 14, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/29125853/whole-genome-dna-methylation-characteristics-in-pediatric-precursor-b-cell-acute-lymphoblastic-leukemia-bcp-all
#20
Radosław Chaber, Artur Gurgul, Grażyna Wróbel, Olga Haus, Anna Tomoń, Jerzy Kowalczyk, Tomasz Szmatoła, Igor Jasielczuk, Blanka Rybka, Renata Ryczan-Krawczyk, Ewa Duszeńko, Sylwia Stąpor, Krzysztof Ciebiera, Sylwia Paszek, Natalia Potocka, Christopher J Arthur, Izabela Zawlik
In addition to genetic alterations, epigenetic abnormalities have been shown to underlie the pathogenesis of acute lymphoblastic leukemia (ALL)-the most common pediatric cancer. The purpose of this study was to characterize the whole genome DNA methylation profile in children with precursor B-cell ALL (BCP ALL) and to compare this profile with methylation observed in normal bone marrow samples. Additional efforts were made to correlate the observed methylation patterns with selected clinical features. We assessed DNA methylation from bone marrow samples obtained from 38 children with BCP ALL at the time of diagnosis along with 4 samples of normal bone marrow cells as controls using Infinium MethylationEPIC BeadChip Array...
2017: PloS One
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