Journal ArticleProstate · March 2024
BACKGROUND: Prostate cancer (PCa) continues to be one of the leading causes of cancer deaths in men. While androgen deprivation therapy is initially effective, castration-resistant PCa (CRPC) often recurs and has limited treatment options. Our previous stu ...
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Journal ArticleNat Commun · January 25, 2024
Stimulating the innate immune system has been explored as a therapeutic option for the treatment of gliomas. Inactivating mutations in ATRX, defining molecular alterations in IDH-mutant astrocytomas, have been implicated in dysfunctional immune signaling. ...
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Journal ArticleCommun Biol · January 3, 2024
There are limited therapeutic options for patients with advanced prostate cancer (PCa). We previously found that heat shock factor 1 (HSF1) expression is increased in PCa and is an actionable target. In this manuscript, we identify that HSF1 regulates the ...
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Journal ArticlePLoS One · 2024
Targeting endolysosomes is a strategy extensively pursued for treating cancers, including glioblastomas (GBMs), on the basis that the intact function of these subcellular organelles is key to tumor cell autophagy and survival. Through gene expression analy ...
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Journal ArticleMol Cell Oncol · 2024
Clemastine is an antagonist of histamine H1 receptor may provide benefits in the treatment of osteosarcoma (OS). In the current study, we used hyperthermia approach to sensitize OS cells to clemastine-mediated cell death. Osteosarcoma U-2 OS and Saos-2 cel ...
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Journal ArticleCancers (Basel) · September 18, 2023
Brain tumor-initiating cells (BTICs) and tumor cell plasticity promote glioblastoma (GBM) progression. Here, we demonstrate that clemastine, an over-the-counter drug for treating hay fever and allergy symptoms, effectively attenuated the stemness and suppr ...
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Journal ArticleNeuro Oncol · September 5, 2023
BACKGROUND: Telomere maintenance mechanisms are required to enable the replicative immortality of malignant cells. While most cancers activate the enzyme telomerase, a subset of cancers uses telomerase-independent mechanisms termed alternative lengthening ...
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Journal ArticleBiometrics · June 2023
In contrast to differential gene expression analysis at the single-gene level, gene regulatory network (GRN) analysis depicts complex transcriptomic interactions among genes for better understandings of underlying genetic architectures of human diseases an ...
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Journal ArticleJ Pathol · May 2023
Neuroendocrine (NE) cells comprise ~1% of epithelial cells in benign prostate and prostatic adenocarcinoma (PCa). However, they become enriched in hormonally treated and castration-resistant PCa (CRPC). In addition, close to 20% of hormonally treated tumor ...
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Journal ArticlebioRxiv · April 21, 2023
Stimulating the innate immune system has been explored as a therapeutic option for the treatment of gliomas. Inactivating mutations in ATRX , defining molecular alterations in IDH -mutant astrocytomas, have been implicated in dysfunctional immune signaling ...
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Journal ArticleNPJ Precis Oncol · February 24, 2023
An understanding of the molecular features associated with prostate cancer progression (PCa) and resistance to hormonal therapy is crucial for the identification of new targets that can be utilized to treat advanced disease and prolong patient survival. Th ...
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Journal ArticleBiomedicines · March 23, 2022
Glioblastoma (GBM) is a lethal brain cancer exhibiting high levels of drug resistance, a feature partially imparted by tumor cell stemness. Recent work shows that homozygous MTAP deletion, a genetic alteration occurring in about half of all GBMs, promotes ...
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Journal ArticleSci Rep · March 9, 2022
Glioblastoma (GBM) is a lethal brain cancer known for its potent immunosuppressive effects. Loss of Methylthioadenosine Phosphorylase (MTAP) expression, via gene deletion or epigenetic silencing, is one of the most common alterations in GBM. Here we show t ...
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Journal ArticleOncogene · February 2022
Advanced and aggressive prostate cancer (PCa) depends on glutamine for survival and proliferation. We have previously shown that inhibition of glutaminase 1, which catalyzes the rate-limiting step of glutamine catabolism, achieves significant therapeutic e ...
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Journal ArticleMol Cancer Res · December 2021
Strengthened DNA repair pathways in tumor cells contribute to the development of resistance to DNA-damaging agents. Consequently, targeting proteins in these pathways is a promising strategy for tumor chemosensitization. Here, we show that the expression o ...
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Journal ArticleActa Neuropathol Commun · November 3, 2021
Diffuse intrinsic pontine gliomas (DIPGs) are high-grade tumors of the brainstem that often occur in children, with a median overall survival of less than one year. Given the fact that DIPGs are resistant to chemotherapy and are not amenable to surgical re ...
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ConferenceNeuro-Oncology · June 1, 2021
AbstractMyc plays a central role in tumorigenesis by orchestrating the expression of genes essential to numerous cellular processes. While it is well established that Myc functions by binding to its target g ...
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Journal ArticleProc Natl Acad Sci U S A · March 30, 2021
Cellular metabolism in cancer is significantly altered to support the uncontrolled tumor growth. How metabolic alterations contribute to hormonal therapy resistance and disease progression in prostate cancer (PCa) remains poorly understood. Here we report ...
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Journal ArticleInt J Biol Markers · March 2021
BACKGROUND: BRCA1 and BRCA2 have been well studied for their roles in tumorigeneis, plus cancer diagnosis and treatment, but their prognostic value in colon cancer, especially for early-stage cancer, has not been fully illuminated. This study examined the ...
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Journal ArticleNat Commun · January 13, 2021
Several immunotherapy clinical trials in recurrent glioblastoma have reported long-term survival benefits in 10-20% of patients. Here we perform genomic analysis of tumor tissue from recurrent WHO grade IV glioblastoma patients acquired prior to immunother ...
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Journal ArticleMol Cancer Res · July 2020
Diffuse intrinsic pontine glioma (DIPG) is an invariably fatal brain tumor occurring predominantly in children. Up to 90% of pediatric DIPGs harbor a somatic heterozygous mutation resulting in the replacement of lysine 27 with methionine (K27M) in genes en ...
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Journal ArticleNat Commun · June 17, 2020
Brainstem gliomas are a heterogeneous group of tumors that encompass both benign tumors cured with surgical resection and highly lethal cancers with no efficacious therapies. We perform a comprehensive study incorporating epigenetic and genomic analyses on ...
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Journal ArticleSci Transl Med · December 4, 2019
Hormonal therapy targeting androgen receptor (AR) is initially effective to treat prostate cancer (PCa), but it eventually fails. It has been hypothesized that cellular heterogeneity of PCa, consisting of AR+ luminal tumor cells and AR- neuroendocrine (NE) ...
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Journal ArticleMol Cancer Res · October 2019
Mutations in isocitrate dehydrogenases 1 and 2 (IDH) occur in the majority of World Health Organization grade II and III gliomas. IDH1/2 active site mutations confer a neomorphic enzyme activity producing the oncometabolite D-2-hydroxyglutarate (D-2HG), wh ...
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Journal ArticleCell Rep · September 17, 2019
H2AX safeguards genomic stability in a dose-dependent manner; however, mechanisms governing its proteostasis are poorly understood. Here, we identify a PRMT5-RNF168-SMURF2 cascade that regulates H2AX proteostasis. We show that PRMT5 sustains the expression ...
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Journal ArticleCancer Res · July 1, 2019
Homozygous deletion of methylthioadenosine phosphorylase (MTAP) is one of the most frequent genetic alterations in glioblastoma (GBM), but its pathologic consequences remain unclear. In this study, we report that loss of MTAP results in profound epigenetic ...
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Journal ArticleFam Cancer · April 2019
Precise genetic counseling and prenatal diagnosis are often hindered by incomplete penetrance of risk variance and complex patterns of inheritance. Here, we performed a clinical and genetic study of a five-generation Pakistani family with a history of mult ...
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Journal ArticleNeuro Oncol · March 18, 2019
BACKGROUND: Mutations in telomerase reverse transcriptase promoter (TERTp) and isocitrate dehydrogenase 1 and 2 (IDH) offer objective markers to assist in classifying diffuse gliomas into genetic subgroups. However, traditional mutation detection technique ...
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Journal ArticleSci Rep · August 21, 2018
The concept that human cancer is in essence a genetic disease driven by gene mutations has been well established, yet its utilization in functional studies of cancer genes has not been fully explored. Here, we describe a simple genetics-based approach that ...
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Journal ArticleNat Commun · May 25, 2018
The majority of glioblastomas can be classified into molecular subgroups based on mutations in the TERT promoter (TERTp) and isocitrate dehydrogenase 1 or 2 (IDH). These molecular subgroups utilize distinct genetic mechanisms of telomere maintenance, eithe ...
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Journal ArticleCancer Res · January 1, 2018
Hotspot mutations in the isocitrate dehydrogenase 1 (IDH1) gene occur in a number of human cancers and confer a neomorphic enzyme activity that catalyzes the conversion of α-ketoglutarate (αKG) to the oncometabolite D-(2)-hydroxyglutarate (D2HG). In malign ...
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Journal ArticleCancer Res · November 15, 2017
Inactivating mutations in the transcriptional repression factor Capicua (CIC) occur in approximately 50% of human oligodendrogliomas, but mechanistic links to pathogenesis are unclear. To address this question, we generated Cic-deficient mice and human oli ...
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Journal ArticleOncotarget · September 29, 2017
Diffuse intrinsic pontine glioma (DIPG) is a devastating brain tumor, with a median survival of less than one year. Due to enormous difficulties in the acquisition of DIPG specimens and the sophisticated technique required to perform brainstem orthotopic i ...
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Journal ArticleOncotarget · July 28, 2017
Diffuse intrinsic pontine glioma (DIPG) is a devastating brain tumor, with a median survival of less than one year. Due to enormous difficulties in the acquisition of DIPG specimens and the sophisticated technique required to perform brainstem orthotopic i ...
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Journal ArticleMol Cancer Res · May 2017
IDH1 mutations occur in the majority of low-grade gliomas and lead to the production of the oncometabolite, D-2-hydroxyglutarate (D-2HG). To understand the effects of tumor-associated mutant IDH1 (IDH1-R132H) on both the neural stem cell (NSC) population a ...
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Chapter · March 2, 2017
Glioblastoma (GBM) is the most malignant primary brain tumor in adults. Even with the current standard of care therapy (i.e., surgery, radiotherapy, and chemotherapy), GBM has a poor prognosis. Innovative immunotherapeutic approaches, which engage a patien ...
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Journal ArticleClin Cancer Res · January 1, 2017
A new 30-gene signature has been described that separates prostate cancers of Gleason score ≤6 from those of Gleason score ≥8. It provides independent prognostic information for prostate cancers of intermediate risk (Gleason score of 7), which has the pote ...
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Journal ArticleOncotarget · December 1, 2015
Besides CDH1, few hereditary gastric cancer predisposition genes have been previously reported. In this study, we discovered two germline ATM mutations (p.Y1203fs and p.N1223S) in a Chinese family with a history of gastric cancer by screening 83 cancer sus ...
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ConferenceCancer Research · October 1, 2014
AbstractDespite decades worth of research, glioblastoma remains one of the most lethal cancers. The identification of IDH1 as a major cancer gene in glioblastoma provides a great opportunity for improving ou ...
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Journal ArticleNat Genet · July 2014
Gliomas arising in the brainstem and thalamus are devastating tumors that are difficult to surgically resect. To determine the genetic and epigenetic landscape of these tumors, we performed exomic sequencing of 14 brainstem gliomas (BSGs) and 12 thalamic g ...
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Journal ArticleOncotarget · March 30, 2014
Frequent mutations in isocitrate dehydrogenase 1 and 2 (IDH1 and IDH2) and the promoter of telomerase reverse transcriptase (TERT) represent two significant discoveries in glioma genomics. Understanding the degree to which these two mutations co-occur or o ...
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Journal ArticleOncotarget · March 30, 2014
Anaplastic astrocytoma WHO grade III (A3) is a lethal brain tumor that often occurs in middle aged patients. Clinically, it is challenging to distinguish A3 from glioblastoma multiforme (GBM) WHO grade IV. To reveal the genetic landscape of this tumor type ...
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Journal ArticleNature Genetics · January 1, 2014
Gliomas arising in the brainstem and thalamus are devastating tumors that are difficult to surgically resect. To determine the genetic and epigenetic landscape of these tumors, we performed exomic sequencing of 14 brainstem gliomas (BSGs) and 12 thalamic g ...
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Journal ArticlePLoS One · 2014
Despite an emerging understanding of the genetic alterations giving rise to various tumors, the mechanisms whereby most oncogenes are overexpressed remain unclear. Here we have utilized an integrated approach of genomewide regulatory element mapping via DN ...
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Journal ArticleOncotarget · November 2013
KMT2D (lysine (K)-specific methyltransferase 2D), formerly named MLL2 (myeloid/lymphoid or mixed-lineage leukemia 2, also known as ALR/MLL4), is a histone methyltransferase that plays an important role in regulating gene transcription. In particular, it ta ...
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Journal ArticleProc Natl Acad Sci U S A · April 9, 2013
Malignant cells, like all actively growing cells, must maintain their telomeres, but genetic mechanisms responsible for telomere maintenance in tumors have only recently been discovered. In particular, mutations of the telomere binding proteins alpha thala ...
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Journal ArticleCancer Res · January 15, 2013
Point mutations at Arg132 of the cytoplasmic NADP(+)-dependent isocitrate dehydrogenase 1 (IDH1) occur frequently in gliomas and result in a gain of function to produce the "oncometabolite" D-2-hydroxyglutarate (D-2HG). The mutated IDH1 allele is usually a ...
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Journal ArticleProc Natl Acad Sci U S A · October 23, 2012
Myeloid/lymphoid or mixed-lineage leukemia (MLL)-family genes encode histone lysine methyltransferases that play important roles in epigenetic regulation of gene transcription. MLL genes are frequently mutated in human cancers. Unlike MLL1, MLL2 (also know ...
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Journal ArticleOncotarget · August 2012
Frequent somatic hotspot mutations in isocitrate dehydrogenase 1 (IDH1) have been identified in gliomas, acute myeloid leukemias, chondrosarcomas, and other cancers, providing a likely avenue for targeted cancer therapy. However, whether mutant IDH1 protei ...
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Journal ArticleOncotarget · July 2012
Mutations in the critical chromatin modifier ATRX and mutations in CIC and FUBP1, which are potent regulators of cell growth, have been discovered in specific subtypes of gliomas, the most common type of primary malignant brain tumors. However, the frequen ...
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Journal ArticlePLoS One · 2012
Dysregulation of Otx2 is a hallmark of the pediatric brain tumor medulloblastoma, yet its functional significance in the establishment of these tumors is unknown. Here we have sought to determine the functional consequences of Otx2 overexpression in the mo ...
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Journal ArticleScience · July 22, 2011
The proteins encoded by ATRX and DAXX participate in chromatin remodeling at telomeres and other genomic sites. Because inactivating mutations of these genes are common in human pancreatic neuroendocrine tumors (PanNETs), we examined the telomere status of ...
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Journal ArticleProc Natl Acad Sci U S A · February 22, 2011
Point mutations of the NADP(+)-dependent isocitrate dehydrogenases 1 and 2 (IDH1 and IDH2) occur early in the pathogenesis of gliomas. When mutated, IDH1 and IDH2 gain the ability to produce the metabolite (R)-2-hydroxyglutarate (2HG), but the downstream e ...
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Journal ArticleScience · January 28, 2011
Medulloblastoma (MB) is the most common malignant brain tumor of children. To identify the genetic alterations in this tumor type, we searched for copy number alterations using high-density microarrays and sequenced all known protein-coding genes and micro ...
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Journal ArticleNature · March 25, 2010
The presence of hundreds of copies of mitochondrial DNA (mtDNA) in each human cell poses a challenge for the complete characterization of mtDNA genomes by conventional sequencing technologies. Here we describe digital sequencing of mtDNA genomes with the u ...
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Journal ArticleNat Biotechnol · September 2009
Analysis of abnormally methylated genes is increasingly important in basic research and in the development of cancer biomarkers. We have developed methyl-BEAMing technology to enable absolute quantification of the number of methylated molecules in a sample ...
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Journal ArticleGenes Dev · July 15, 2009
Precise control of the timing and magnitude of Notch signaling is essential for the normal development of many tissues, but the feedback loops that regulate Notch are poorly understood. Developing T cells provide an excellent context to address this issue. ...
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Journal ArticleScience · December 19, 2008
Transcription in mammalian cells can be assessed at a genome-wide level, but it has been difficult to reliably determine whether individual transcripts are derived from the plus or minus strands of chromosomes. This distinction can be critical for understa ...
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Journal ArticleInt Immunol · December 2007
Notch1 signalling is essential for the commitment of multipotent lymphocyte precursors towards the alphabeta T-cell lineage and plays an important role in regulating beta-selection in CD4(-)CD8(-) double-negative (DN) thymocytes. However, the role played b ...
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Journal ArticleBlood · November 15, 2007
Gene expression profiling of acute myeloid leukemia (AML) allows the discovery of previously unrecognized molecular entities. Here, we identified a specific subgroup of AML, defined by an expression profile resembling that of AMLs with mutations in the mye ...
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Journal ArticleCancer Cell · November 2006
Tribbles homolog 2 (Trib2) was identified as a downregulated transcript in leukemic cells undergoing growth arrest. To investigate the effects of Trib2 in hematopoietic progenitors, mice were reconstituted with hematopoietic stem cells retrovirally express ...
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Journal ArticleProc Natl Acad Sci U S A · March 7, 2006
MicroRNAs (miRNAs) are a class of small noncoding RNAs that have important regulatory roles in multicellular organisms. The public miRNA database contains 321 human miRNA sequences, 234 of which have been experimentally verified. To explore the possibility ...
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Journal ArticleBlood · December 1, 2005
Although Notch receptor expression on malignant B cells is widespread, the effect of Notch signaling in these cells is poorly understood. To investigate Notch signaling in B-cell malignancy, we assayed the effect of Notch activation in multiple murine and ...
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Journal ArticleProc Natl Acad Sci U S A · November 8, 2005
The early detection of cancers through analysis of circulating DNA could have a substantial impact on morbidity and mortality. To achieve this goal, it is essential to determine the number of mutant molecules present in the circulation of cancer patients a ...
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Journal ArticleImmunity · April 2004
Notch signaling has been identified as an important regulator of leukocyte differentiation and thymic maturation. Less is known about the role of Notch signaling in regulating mature T cells. We examined the role of Notch 1 in regulating peripheral T cell ...
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Journal ArticleImmunity · May 2003
Although Notch receptors are widely expressed during hematopoiesis, their roles outside of the T cell lineage are not well characterized. Two reports in this issue of Immunity show that Notch1 and Notch2, respectively, are required to generate the earliest ...
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Journal ArticleSemin Cell Dev Biol · April 2003
Notch signalling is likely to regulate multiple aspects of lymphoid development and function. During T cell development, Notch signalling is required for commitment of the earliest progenitor, and may also function during other developmental stages. T cell ...
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Journal ArticleOncogene · December 9, 2002
Chronic myelogenous leukemia (CML) is a biphasic neoplasm of the bone marrow that is precipitated by the Philadelphia chromosome, a t(9;22) balanced translocation that encodes a constitutively activated nonreceptor tyrosine kinase termed P210(BCR-ABL). Thi ...
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Journal ArticleBlood · April 15, 2002
The bcr/abl fusion in chronic myelogenous leukemia (CML) creates a chimeric tyrosine kinase with dramatically different properties than intact c-abl. In P210 bcr/abl, the bcr portion includes a coiled-coil oligomerization domain (amino acids 1-63) and a gr ...
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Journal ArticleImmunity · February 2002
Notch1 signaling drives T cell development at the expense of B cell development from a common precursor, an effect that is dependent on a C-terminal Notch1 transcriptional activation domain. The function of Deltex1, initially identified as a positive modul ...
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