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https://www.readbyqxmd.com/read/30099141/functional-characterization-of-grass-carp-runt-related-transcription-factor-3-involvement-in-tgf-%C3%AE-1-mediated-c-myc-transcription-in-fish-cells
#1
Fuli Yao, Licheng Yin, Shiyu Feng, Xinyan Wang, Anying Zhang, Hong Zhou
In mammals, both runt-related transcription factor 3 (RUNX3) and c-Myc are the downstream effectors of transforming growth factor-β1 (TGF-β1) signaling to mediate various cellular responses. However, information of their interaction especially in fish is lacking. In the present study, grass carp (Ctenopharyngodon idella) runx3 (gcrunx3) cDNA was cloned and identified. Interestingly, opposing effects of recombinant grass carp TGF-β1 (rgcTGF-β1) on c-myc and runx3 mRNA expression were observed in grass carp periphery blood lymphocytes (PBLs)...
August 9, 2018: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/30043475/-triple-hit-lymphomas-a-retrospective-cytology-case-series-of-an-uncommon-high-grade-b-cell-malignancy-with-c-myc-bcl-2-and-bcl-6-rearrangements
#2
Tarek Eldessouki, Kelly Hanley, Fatima Hamadeh, Olaronke O Oshilaja, Charles D Sturgis
The Revised fourth Edition World Health Organization (WHO) Classification of Tumors of Hematopoietic and Lymphoid Tissues suggests novel categories, including "high grade B-cell lymphoma with MYC and BCL2 and BCL6 gene rearrangements." These diseases are known colloquially as "double hit" and "triple hit" lymphomas. The "first-hit" in these cases is the harboring of a MYC rearrangement. Concurrent derangements of BCL2 and BCL6 can be the "second-hit" or "third-hit...
July 25, 2018: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/30012920/transformation-of-double-hit-follicular-lymphoma-to-plasmablastic-lymphoma-a-partial-role-of-myc-gene-rearrangement
#3
Mikiko Ise, Hajime Kageyama, Dai Ikebe, Akinobu Araki, Kyoya Kumagai, Makiko Itami
Follicular lymphoma (FL) is genetically characterized by BCL2/IGH translocation. Some FL cases histologically transform to high-grade lymphoma, and the majority of cases transform to diffuse large B-cell lymphoma. We report herein an unusual FL case that transformed to plasmablastic lymphoma (PBL) with MYC gene rearrangement as early as 12 months after FL diagnosis. IGH/MYC translocation, the most common cytogenetic abnormality seen in de novo PBL, was also detected in the transformed tumor (double-hit lymphoma)...
July 14, 2018: Journal of Clinical and Experimental Hematopathology: JCEH
https://www.readbyqxmd.com/read/29989509/advances-in-pathological-understanding-of-high-grade-b-cell-lymphomas
#4
Shaoying Li, Pei Lin, L Jeffrey Medeiros
The designation high-grade B-cell lymphoma (HGBL) has been incorporated into the 2016 Revision of the WHO classification of lymphoid neoplasms and includes two types: (1) HGBL, not otherwise specified; and (2) HGBL with MYC and BCL2 and/or BCL6 rearrangements, also known as double or triple hit lymphoma (DHL/THL). These categories of lymphomas represent 1-2% of non-Hodgkin lymphomas and a considerable portion of DLBCL patients who are primary refractory to R-CHOP therapy. It corresponds to the designation 'B-cell lymphoma, unclassifiable, with features intermediate between DLBCL and Burkitt lymphoma' in the 2008 WHO classification...
August 2018: Expert Review of Hematology
https://www.readbyqxmd.com/read/29942008/towards-a-gene-regulatory-network-shaping-the-fins-of-the-princess-cichlid
#5
Ehsan Pashay Ahi, Kristina M Sefc
Variation in fin shape and size contributes to the outstanding morphological diversity of teleost fishes, but the regulation of fin growth has not yet been studied extensively outside the zebrafish model. A previous gene expression study addressing the ornamental elongations of unpaired fins in the African cichlid fish Neolamprologus brichardi identified three genes (cx43, mmp9 and sema3d) with strong and consistent expression differences between short and elongated fin regions. Remarkably, the expression patterns of these genes were not consistent with inferences on their regulatory interactions in zebrafish...
June 25, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29902576/lymphomas-with-pseudo-double-hit-bcl6-myc-translocations-due-to-t-3-8-q27-q24-are-associated-with-a-germinal-center-immunophenotype-extranodal-involvement-and-frequent-bcl2-translocations
#6
Steven M Johnson, Jayadev Manikkam Umakanthan, Ji Yuan, Yuri Fedoriw, R Gregory Bociek, Kathleen Kaiser-Rogers, Jennifer N Sanmann, Nathan D Montgomery
High-grade B-cell lymphomas with MYC, BCL2, and/or BCL6 rearrangements, "double hit" or "triple hit" lymphomas (DTHL), are aggressive neoplasms associated with a poor prognosis. A t(3;8)(q27;q24) rarely occurs in B-cell lymphomas that results in a unique "pseudo-double hit" BCL6-MYC fusion, indistinguishable by interphase fluorescence in situ hybridization (FISH) from more conventional DTHL with independent MYC and BCL6 translocations. Reports of t(3;8)(q27;q24) lymphomas are sparse, and to better characterize their pathologic, cytogenetic, and clinical features, 6 new cases from 2 institutions and 19 previously published cases were reviewed...
June 11, 2018: Human Pathology
https://www.readbyqxmd.com/read/29793519/high-grade-b-cell-lymphoma-with-myc-and-bcl2-rearrangements-arising-in-a-composite-lymphoma
#7
Alison M Moore, Olga Moshkin, Gordon J Swain, Susan Crocker, David P LeBrun
BACKGROUND: We report the first case of composite lymphoma consisting of chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL), follicular lymphoma (FL) and high-grade B-cell lymphoma with MYC and BCL2 rearrangements within the same needle biopsy in which a clonal relationship between the FL and high-grade B-cell lymphoma components was demonstrated by molecular cytogenetics. CASE PRESENTATION: An 85-year-old man presented with masses in his neck and right groin...
May 24, 2018: Diagnostic Pathology
https://www.readbyqxmd.com/read/29780927/isolated-orbital-mass-as-the-primary-presentation-of-a-triple-hit-lymphoma-transformed-from-a-systemic-follicular-lymphoma
#8
Xiao Yi Zhou, Xinyan Lu, Kirtee Raparia, Yi-Hua Chen
Purpose: Triple-hit lymphoma is a highly aggressive B-cell lymphoma. We report a case of triple-hit lymphoma transformed from systemic follicular lymphoma (FL) after 9-year remission and presented primarily as an isolated orbital mass without systemic symptoms or lymphadenopathy. Observations: A 58-year-old female presented with intermittent vertical binocular diplopia, left upper eyelid swelling and pain and was found to have a 2.9 cm orbital mass. Histological section revealed a CD10-positive large B-cell lymphoma, consistent with transformation of FL...
June 2018: American Journal of Ophthalmology Case Reports
https://www.readbyqxmd.com/read/29773426/stem-cell-transcription-factor-sox2-in-synovial-sarcoma-and-other-soft-tissue-tumors
#9
Heba Zayed, Iver Petersen
BACKGROUND: SOX2 has gained considerable interest as a pluripotency inducing gene. Co-transfection of SOX2 together with NANOG, KLF4 and c-MYC into adult fibroblasts was able to generate pluripotent stem cells. SOX2 has been reported to be expressed in synovial sarcoma, a tumor being characterized by the SS18-SSX gene fusion forming part of the SWI/SNF chromatin remodeling complex that affects histone methylation. The role of SOX2 in this tumor type as well as other soft tissue tumor entities however is still poorly characterized...
July 2018: Pathology, Research and Practice
https://www.readbyqxmd.com/read/29757976/fatty-acid-%C3%AE-oxidation-is-essential-in-leptin-mediated-oocytes-maturation-of-yellow-catfish-pelteobagrus-fulvidraco
#10
Yu-Feng Song, Xiao-Ying Tan, Ya-Xiong Pan, Li-Han Zhang, Qi-Liang Chen
Although several studies have been conducted to study leptin function, information is very scarce on the molecular mechanism of leptin in fatty acid β-oxidation and oocytes maturation in fish. In this study, we investigated the potential role of fatty acid β-oxidation in leptin-mediated oocytes maturation in Pelteobagrus fulvidraco . Exp. 1 investigated the transcriptomic profiles of ovary and the differential expression of genes involved in β-oxidation and oocytes maturation following rt-hLEP injection; rt-hLEP injection was associated with significant changes in the expression of genes, including twenty-five up-regulated genes ( CPT1 , Acsl , Acadl , Acadm , Hadhb , Echsl , Hsd17b4 , Acca , PPARα , CYP8B1 , ACOX1 , ACBP , MAPK , RINGO , Cdc2 , MEK1 , IGF-1R , APC/C, Cdk2 , GnRHR, STAG3 , SMC1 , FSHβ and C-Myc ) and ten down-regulated gene ( PPARγ , FATCD36 , UBC , PDK1 , Acads , Raf , Fizzy , C3H-4 , Raf and PKC ), involved in fatty acid β-oxidation and oocytes maturation...
May 14, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29666005/unexpected-favorable-outcome-in-a-patient-with-high-grade-b-cell-lymphoma-with-abnormalities-of-myc-bcl6-and-bcl2-loci
#11
Thomas Adams, Deborah Fuchs, Patricia K Shadoan, Laurel Johnstone, Branden M Lau, Lee McGhan, Faiz Anwer, Hussam Al-Kateb
High grade B-cell lymphoma (HGBCL) by WHO 2016 classification requires rearrangements of MYC and BCL2 and/or BCL6, practically covering the so called "double-hit" or "triple hit" lymphomas. We report a case of HGBCL "triple-hit" lymphoma in a 64-year old female. Cytogenetic and fluorescence in situ hybridization (FISH) studies revealed complex karyotype including rearrangement of MYC to a novel, non-IG partner on chromosome 18, and rearrangement of BCL2, BCL6 and IGH as well as ins(3)(q21q27...
April 2018: Cancer Genetics
https://www.readbyqxmd.com/read/29629947/identification-of-double-hit-lymphomas-using-updated-who-criteria-insights-from-routine-myc-immunohistochemistry-in-272-consecutive-cases-of-aggressive-b-cell-lymphomas
#12
Hany Sakr, James R Cook
Aggressive lymphomas with MYC and BCL2 and/or BCL6 translocations ("double hit" lymphomas, DHL) represent a distinct diagnostic category in the updated World Health Organization (WHO) classification. The diagnostic yield of MYC immunohistochemistry (IHC) for the identification of DHL is currently uncertain. MYC IHC was performed in 272 consecutive cases of aggressive B-cell lymphoma, and results correlated with fluorescence in situ hybridization (FISH) for MYC translocations. Among 156 patients with IHC and FISH data, MYC IHC identified MYC translocations with 89% sensitivity, 38% specificity, 92% negative predictive value, and 29% positive predictive value...
April 7, 2018: Applied Immunohistochemistry & Molecular Morphology: AIMM
https://www.readbyqxmd.com/read/29567771/gene-expression-profiling-reveals-a-close-relationship-between-follicular-lymphoma-grade-3a-and-3b-but-distinct-profiles-of-follicular-lymphoma-grade-1-and-2
#13
Heike Horn, Christian Kohler, Raphael Witzig, Markus Kreuz, Ellen Leich, Wolfram Klapper, Michael Hummel, Markus Loeffler, Lorenz Trümper, Rainer Spang, Andreas Rosenwald, German Ott
A linear progression model of follicular lymphomas (FL) FL1, FL2 and FL3A has been favored, since FL3A often co-exist with an FL1/2 component. FL3B, in contrast, is thought to be more closely related to diffuse large B-cell lymphoma (DLBCL), and both are often simultaneously present in one tumor (DLBCL/FL3B). To obtain more detailed insights into follicular lymphoma progression, a comprehensive analysis of a well-defined set of FL1/2 (n=22), FL3A (n=16), FL3B (n=6), DLBCL/FL3B (n=9), and germinal center B-cell-type diffuse large B-cell lymphoma (n=45) was undertaken using gene expression profiling, immunohistochemical stainings and genetic analyses by fluorescence in situ hybridization...
July 2018: Haematologica
https://www.readbyqxmd.com/read/29550806/a-plasma-cell-myeloma-case-with-an-abnormal-clone-with-a-t-8-22-q24-1-q11-2-within-the-context-of-a-hyperdiploid-complex-karyotype
#14
Kristie Liu, Mitchell Friend, John Reinartz, Carlos A Tirado
We report here a 74-year-old male who was seen for recurrent respiratory infections, fatigue, and weight loss in November 2016. Bone marrow biopsy showed 90% involvement by plasma cell myeloma (PCM) [90% plasma cells, 40% cellular bone marrow]. Cytogenetic analysis of the bone marrow showed a complex karyotype described as: 53,Y,add(X)(p22.1),del(1)(p13p22),+3,add(3)(p13),add(4)(p12),+6,del(6)(q13q25),t(8;22)(q24.1;q11.2),+9,+11,+15,+15,+21[7]/46,XY[13]. This particular pattern with deletion 1p, deletion 6q, and a t(8;22)(q24;q11...
2018: Journal of the Association of Genetic Technologists
https://www.readbyqxmd.com/read/29534355/-correlation-between-c-myc-protein-expression-and-genetic-abnormalities-in-diffuse-large-b-cell-lymphoma
#15
H Yu, H Wang, N Zhang, S M Gao, Y X Zhang
Objective: To study the correlation between expression of oncogene C-MYC protein and gene abnormality in diffuse large B-cell lymphoma (DLBCL). Methods: The expression of C-MYC protein and gene abnormality were detected by immunohistochemistry and fluorescence in situ hybridization (FISH), respectively, in 42 cases of paraffin-embedded DLBCL. All cases were collected at Department of Pathology, Weifang People's Hospital during January 2015 to October 2016. Results: The positive rate of C-MYC protein expression was 47...
March 8, 2018: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/29531008/late-relapse-of-multiple-myeloma-with-testicular-plasmacytoma-after-autologous-hematopoietic-stem-cell-transplantation-a-case-report-and-review-of-the-literature
#16
Zhong-Ling Wei, Cai-Ming Pan, Yi-Zhi Jiang, Yan-Dai, Lai-Quan Huanguang, Dong-Ping Huang
High-dose chemotherapy combined with autologous hematopoietic stem-cell transplantation (ASCT) is the first-line treatment for multiple myeloma. Yet, some patients will relapse. Testicular plasmacytoma which rarely happens can be isolated or associated with progressive multiple myeloma. Here, we report a case of multiple myeloma (MM) undergoing ASCT when the patient obtained complete remission. He developed painless right testicular swelling after nearly 3 years since the ASCT. After radical orchiectomy, histopathology showed diffuse abnormal plasma cells infiltration of the testicular tissue...
January 2018: Annals of Clinical and Laboratory Science
https://www.readbyqxmd.com/read/29489901/impact-of-9p-deletion-and-p16-cyclin-d1-and-myc-hyperexpression-on-the-outcome-of-anaplastic-oligodendrogliomas
#17
Karine Michaud, Marie de Tayrac, Myreille D'Astous, Claudie Paquet, Peter Vincent Gould, Stéphan Saikali
OBJECTIVE: To study the presence of 9p deletion and p16, cyclin D1 and Myc expression and their respective diagnostic and prognostic interest in oligodendrogliomas. METHODS: We analyzed a retrospective series of 40 consecutive anaplastic oligodendrogliomas (OIII) from a single institution and compared them to a control series of 10 low grade oligodendrogliomas (OII). Automated FISH analysis of chromosome 9p status and immunohistochemistry for p16, cyclin D1 and Myc was performed for all cases and correlated with clinical and histological data, event free survival (EFS) and overall survival (OS)...
2018: PloS One
https://www.readbyqxmd.com/read/29475959/high-grade-b-cell-lymphoma-with-myc-and-bcl2-and-or-bcl6-rearrangements-with-diffuse-large-b-cell-lymphoma-morphology
#18
David W Scott, Rebecca L King, Annette M Staiger, Susana Ben-Neriah, Aixiang Jiang, Heike Horn, Anja Mottok, Pedro Farinha, Graham W Slack, Daisuke Ennishi, Norbert Schmitz, Michael Pfreundschuh, Grzegorz S Nowakowski, Brad S Kahl, Joseph M Connors, Randy D Gascoyne, German Ott, William R Macon, Andreas Rosenwald
High-grade B-cell lymphoma with MYC and BCL2 and/or BCL6 rearrangements (HGBL-DH/TH) is a newly defined entity in the latest World Health Organization Classification. Accurate diagnosis would appear to mandate fluorescence in situ hybridization (FISH) for all tumors with diffuse large B-cell lymphoma (DLBCL) morphology. We present the results of FISH, cell-of-origin, and immunohistochemistry (IHC) testing from 1228 DLBCL biopsies from 3 clinical trials and a population-based registry. HGBL-DH/TH made up 7.9% of the DLBCL, confined primarily to the germinal center B-cell-like (GCB; 13...
May 3, 2018: Blood
https://www.readbyqxmd.com/read/29449271/targeted-therapies-for-targeted-populations-anti-egfr-treatment-for-egfr-amplified-gastroesophageal-adenocarcinoma
#19
Steven B Maron, Lindsay Alpert, Heewon A Kwak, Samantha Lomnicki, Leah Chase, David Xu, Emily O'Day, Rebecca J Nagy, Richard B Lanman, Fabiola Cecchi, Todd Hembrough, Alexa Schrock, John Hart, Shu-Yuan Xiao, Namrata Setia, Daniel V T Catenacci
Previous anti-EGFR trials in unselected patients with gastroesophageal adenocarcinoma (GEA) were resoundingly negative. We identified EGFR amplification in 5% (19/363) of patients at the University of Chicago, including 6% (8/140) who were prospectively screened with intention-to-treat using anti-EGFR therapy. Seven patients received ≥1 dose of treatment: three first-line FOLFOX plus ABT-806, one second-line FOLFIRI plus cetuximab, and three third/fourth-line cetuximab alone. Treatment achieved objective response in 58% (4/7) and disease control in 100% (7/7) with a median progression-free survival of 10 months...
June 2018: Cancer Discovery
https://www.readbyqxmd.com/read/29393095/myc-amplification-in-the-form-of-ring-chromosomes-8-in-acute-myeloid-leukemia-with-t-11-16-q13-p11-2
#20
Katsuya Yamamoto, Shinichiro Kawamoto, Keiji Kurata, Akihito Kitao, Yu Mizutani, Hiroya Ichikawa, Kimikazu Yakushijin, Kazuyoshi Kajimoto, Yoshitake Hayashi, Hiroshi Matsuoka, Hironobu Minami
Oncogene amplification is uncommon in acute myeloid leukemia (AML). Cytogenetically, it is primarily found as double minute chromosomes (dmin) or homogeneously staining regions (hsr). A 62-year-old woman was admitted to our hospital because of anemia and thrombocytopenia. Her bone marrow was hypercellular with 78.6% myeloperoxidase- positive blasts. Some had micronuclei. The patient was diagnosed with AML M2 and remains in complete remission (CR) after induction therapy. G-banding at diagnosis showed 51,XX,t(11;16)(q13;p11...
2017: Cytogenetic and Genome Research
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