Institution
St. Jude Children's Research Hospital
Healthcare•Memphis, Tennessee, United States•
About: St. Jude Children's Research Hospital is a healthcare organization based out in Memphis, Tennessee, United States. It is known for research contribution in the topics: Population & Virus. The organization has 9344 authors who have published 19233 publications receiving 1233399 citations. The organization is also known as: St. Jude Children's Hospital & St. Jude Hospital.
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Papers
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TL;DR: Common natural allelic variants of BCRP have been identified, and did not influence interindividual variation in expression of B CRP mRNA in human intestine, but remain to be tested for their effect on BCRp function.
Abstract: The aim of this study was to identify the extent of genetic variability in breast cancer resistance protein (BCRP) in humans. We first analysed the sequence of BCRP cDNA from human livers and from human intestines phenotyped for expression of intestinal BCRP. We then determined the frequency of all
270 citations
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TL;DR: Findings define caspase-8 as a metastasis suppressor gene that, together with integrins, regulates the survival and invasive capacity of neuroblastoma cells.
Abstract: Neuroblastoma, the most common paediatric solid tumour, arises from defective neural crest cells. Genetic alterations occur frequently in the most aggressive neuroblastomas. In particular, deletion or suppression of the proapoptotic enzyme caspase-8 is common in malignant, disseminated disease, although the effect of this loss on disease progression is unclear. Here we show that suppression of caspase-8 expression occurs during the establishment of neuroblastoma metastases in vivo, and that reconstitution of caspase-8 expression in deficient neuroblastoma cells suppressed their metastases. Caspase-8 status was not a predictor of primary tumour growth; rather, caspase-8 selectively potentiated apoptosis in neuroblastoma cells invading the collagenous stroma at the tumour margin. Apoptosis was initiated by unligated integrins by means of a process known as integrin-mediated death. Loss of caspase-8 or integrin rendered these cells refractory to integrin-mediated death, allowed cellular survival in the stromal microenvironment, and promoted metastases. These findings define caspase-8 as a metastasis suppressor gene that, together with integrins, regulates the survival and invasive capacity of neuroblastoma cells.
270 citations
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TL;DR: Stable and high level long-term GFP expression was observed in mice transplanted with the transduced BM and fully developed Purkinje neurons were found to express GFP in both cerebellar hemispheres and in all chimeric mice.
Abstract: The versatility of stem cells has only recently been fully recognized. There is evidence that upon adoptive bone marrow (BM) transplantation (BMT), donor-derived cells can give rise to neuronal phenotypes in the brains of recipient mice. Yet only few cells with the characteristic shape of neurons were detected 1–6 mo post-BMT using transgenic or newborn mutant mice. To evaluate the potential of BM to generate mature neurons in adult C57BL/6 mice, we transferred the enhanced green fluorescent protein (GFP) gene into BM cells using a murine stem cell virus-based retroviral vector. Stable and high level long-term GFP expression was observed in mice transplanted with the transduced BM. Engraftment of GFP-expressing cells in the brain was monitored by intravital microscopy. In a long-term follow up of 15 mo post-BMT, fully developed Purkinje neurons were found to express GFP in both cerebellar hemispheres and in all chimeric mice. GFP-positive Purkinje cells were also detected in BM chimeras from transgenic mice that ubiquitously express GFP. Based on morphologic criteria and the expression of glutamic acid decarboxylase, the newly generated Purkinje cells were functional.
270 citations
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TL;DR: In this article, the authors evaluated clinical, pathologic, and molecular outcome indicators and stratification models in a cohort (n = 207) of patients with medulloblastoma 3 to 16 years of age from the International Society of Pediatric Oncology CNS9102 (PNET3) trial.
Abstract: Purpose Medulloblastomas are heterogeneous and include relatively good-prognosis tumors characterized by Wnt pathway activation, as well as those that cannot be successfully treated with conventional therapy. Developing a practical therapeutic stratification that allows accurate identification of disease risk offers the potential to individualize adjuvant therapy and to minimize long-term adverse effects in a subgroup of survivors. Methods Using formalin-fixed paraffin-embedded (FFPE) tissue for immunohistochemistry, fluorescent in situ hybridization, and direct sequencing to identify tumors with a Wnt pathway signature and those harboring copy number abnormalities (CNAs) of potential prognostic significance (MYC/MYCN amplification, CNAs of chromosome 6 and 17), we evaluated clinical, pathologic, and molecular outcome indicators and stratification models in a cohort (n = 207) of patients with medulloblastoma 3 to 16 years of age from the International Society of Pediatric Oncology CNS9102 (PNET3) trial. R...
270 citations
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University of Genoa1, Istituto Giannina Gaslini2, Karolinska University Hospital3, Boston Children's Hospital4, Children's Hospital of Philadelphia5, Cincinnati Children's Hospital Medical Center6, Albert Einstein College of Medicine7, Jaslok Hospital8, Aichi Medical University9, University of Calgary10, St. Jude Children's Research Hospital11, Hacettepe University12, Bristol Royal Hospital for Children13, University of Toronto14, Mount Sinai Hospital15, Seattle Children's16, Katholieke Universiteit Leuven17, Utrecht University18, University of Alabama at Birmingham19
TL;DR: A set of classification criteria for MAS complicating systemic JIA is developed and preliminary evidence of its validity is provided, which will potentially improve understanding of MAS in systemic Jia and enhance efforts to discover effective therapies, by ensuring appropriate patient enrollment in studies.
Abstract: To develop criteria for the classification of macrophage activation syndrome (MAS) in patients with systemic juvenile idiopathic arthritis (JIA). A multistep process, based on a combination of expert consensus and analysis of real patient data, was conducted. A panel of 28 experts was first asked to classify 428 patient profiles as having or not having MAS, based on clinical and laboratory features at the time of disease onset. The 428 profiles comprised 161 patients with systemic JIA—associated MAS and 267 patients with a condition that could potentially be confused with MAS (active systemic JIA without evidence of MAS, or systemic infection). Next, the ability of candidate criteria to classify individual patients as having MAS or not having MAS was assessed by evaluating the agreement between the classification yielded using the criteria and the consensus classification of the experts. The final criteria were selected in a consensus conference. Experts achieved consensus on the classification of 391 of the 428 patient profiles (91.4%). A total of 982 candidate criteria were tested statistically. The 37 best-performing criteria and 8 criteria obtained from the literature were evaluated at the consensus conference. During the conference, 82% consensus among experts was reached on the final MAS classification criteria. In validation analyses, these criteria had a sensitivity of 0.73 and a specificity of 0.99. Agreement between the classification (MAS or not MAS) obtained using the criteria and the original diagnosis made by the treating physician was high (κ=0.76). We have developed a set of classification criteria for MAS complicating systemic JIA and provided preliminary evidence of its validity. Use of these criteria will potentially improve understanding of MAS in systemic JIA and enhance efforts to discover effective therapies, by ensuring appropriate patient enrollment in studies.
269 citations
Authors
Showing all 9410 results
Name | H-index | Papers | Citations |
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Richard A. Flavell | 231 | 1328 | 205119 |
David Baltimore | 203 | 876 | 162955 |
John C. Reed | 190 | 891 | 164382 |
Joan Massagué | 189 | 408 | 149951 |
Stuart H. Orkin | 186 | 715 | 112182 |
Douglas R. Green | 182 | 661 | 145944 |
Richard K. Wilson | 173 | 463 | 260000 |
Todd R. Golub | 164 | 422 | 201457 |
Robert G. Webster | 158 | 843 | 90776 |
Elaine R. Mardis | 156 | 485 | 226700 |
David Cella | 156 | 1258 | 106402 |
Rafi Ahmed | 146 | 633 | 93190 |
Ching-Hon Pui | 145 | 805 | 72146 |
Yoshihiro Kawaoka | 139 | 883 | 75087 |
Seth M. Steinberg | 137 | 936 | 80148 |