Abstract:
:Hypoxia-inducible factor (HIF)-1alpha is a transcription factor that promotes ischaemia-driven angiogenesis. The aim of this study was to determine the relation of HIF-1alpha to vascular endothelial growth factor (VEGF; an important angiogenic molecule in brain tumours), p53 expression, angiogenesis, proliferative potential and clinical outcome in a large series of diffuse astrocytomas. Expression of HIF-1alpha, VEGF, Ki-67 (a proliferation-associated marker) and p53 was determined immunohistochemically in 83 adult patients with supratentorial diffuse astrocytomas. Microvessels, highlighted by means of anti-CD34 immunohistochemistry, were enumerated with computer-assisted image analysis. Although HIF-1alpha and VEGF were expressed in the majority of cases, their levels increased significantly with increasing grade and proliferative potential. HIF-1alpha positively correlated with microvessel counts and VEGF with total vascular area and the presence of rounder vessel sections. There was a positive correlation of VEGF with p53 expression in astrocytomas and anaplastic astrocytomas. In univariate analysis, both VEGF and HIF-1alpha were associated with shortened survival in the entire cohort, but lost significance when grades II/III and grade IV were analysed separately. Multivariate analysis revealed that the combination of HIF-1alpha with grade was a significant prognostic indicator. HIF-1alpha expression may be used to refine the prognostic information provided by grade in patients with diffuse astrocytomas. Its adverse prognostic effect is most likely mediated by hypoxia, the driving force for HIF-1alpha accumulation.
journal_name
Neuropathol Appl Neurobioljournal_title
Neuropathology and applied neurobiologyauthors
Korkolopoulou P,Patsouris E,Konstantinidou AE,Pavlopoulos PM,Kavantzas N,Boviatsis E,Thymara I,Perdiki M,Thomas-Tsagli E,Angelidakis D,Rologis D,Sakkas Ddoi
10.1111/j.1365-2990.2003.00535.xkeywords:
subject
Has Abstractpub_date
2004-06-01 00:00:00pages
267-78issue
3eissn
0305-1846issn
1365-2990pii
NAN535journal_volume
30pub_type
杂志文章abstract::Paediatric diffuse high-grade gliomas (pHGG) are rare, but deadly tumours. The discovery of recurrent mutations in the tail of histone H3, changing lysine 27 to methionine, or glycine 34 to arginine or valine, has illuminated a critical role for epigenetic dysregulation in the aetiology of childhood gliomas and opened...
journal_title:Neuropathology and applied neurobiology
pub_type: 杂志文章,评审
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journal_title:Neuropathology and applied neurobiology
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journal_title:Neuropathology and applied neurobiology
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doi:10.1111/j.1365-2990.1989.tb01242.x
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journal_title:Neuropathology and applied neurobiology
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journal_title:Neuropathology and applied neurobiology
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doi:10.1111/j.1365-2990.1986.tb00051.x
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journal_title:Neuropathology and applied neurobiology
pub_type: 杂志文章
doi:10.1111/j.1365-2990.1983.tb00111.x
更新日期:1983-05-01 00:00:00
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journal_title:Neuropathology and applied neurobiology
pub_type: 杂志文章
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journal_title:Neuropathology and applied neurobiology
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doi:10.1111/j.1365-2990.1995.tb01036.x
更新日期:1995-04-01 00:00:00
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更新日期:2020-12-17 00:00:00
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journal_title:Neuropathology and applied neurobiology
pub_type: 杂志文章,评审
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更新日期:2013-02-01 00:00:00
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journal_title:Neuropathology and applied neurobiology
pub_type: 杂志文章
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更新日期:2001-08-01 00:00:00
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journal_title:Neuropathology and applied neurobiology
pub_type: 杂志文章
doi:10.1111/j.1365-2990.1989.tb01145.x
更新日期:1989-01-01 00:00:00
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更新日期:2019-12-01 00:00:00
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journal_title:Neuropathology and applied neurobiology
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doi:10.1111/j.1365-2990.1990.tb01159.x
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journal_title:Neuropathology and applied neurobiology
pub_type: 杂志文章
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更新日期:1991-10-01 00:00:00
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pub_type: 杂志文章
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更新日期:2008-10-01 00:00:00
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更新日期:2012-12-01 00:00:00
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journal_title:Neuropathology and applied neurobiology
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更新日期:1999-06-01 00:00:00
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journal_title:Neuropathology and applied neurobiology
pub_type: 杂志文章
doi:10.1111/nan.12291
更新日期:2016-12-01 00:00:00
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journal_title:Neuropathology and applied neurobiology
pub_type: 杂志文章,评审
doi:10.1111/nan.12206
更新日期:2015-08-01 00:00:00
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journal_title:Neuropathology and applied neurobiology
pub_type: 杂志文章
doi:10.1111/j.1365-2990.1978.tb01357.x
更新日期:1978-11-01 00:00:00
abstract::Defects of mitochondrial function have been proposed as a potential mechanism in the development and pathogenesis of Alzheimer's disease (AD) and neuronal apoptosis. Mitochondrial enzyme-deficient pyramidal neurones are found in greater quantities in the hippocampus of AD patients than in age-matched controls. The pre...
journal_title:Neuropathology and applied neurobiology
pub_type: 杂志文章
doi:10.1046/j.1365-2990.2002.00414.x
更新日期:2002-10-01 00:00:00
abstract:BACKGROUND:Juvenile neuronal ceroid lipofuscinoses (JNCL) or juvenile Batten disease is a recessively inherited childhood neurodegenerative disorder resulting from a mutation in CLN3, which encodes a putative lysosomal protein of unknown function. AIM:Recent evidence suggests that a disruption in CLN3 function results...
journal_title:Neuropathology and applied neurobiology
pub_type: 杂志文章
doi:10.1111/j.1365-2990.2008.00984.x
更新日期:2009-04-01 00:00:00
abstract::Minute amounts of tetanus toxin injected into the hippocampus of rats results in an epileptiform syndrome. When the toxin injection is made unilaterally or bilaterally into the ventral hippocampus, about one-third of animals with seizures show bilateral neuronal loss in dorsal CA1 of the hippocampus after 1 week. In a...
journal_title:Neuropathology and applied neurobiology
pub_type: 杂志文章
doi:10.1111/j.1365-2990.1994.tb00985.x
更新日期:1994-08-01 00:00:00