Abstract:
:Interphase cytogenetics, i.e., in situ hybridization using probes to chromosome-specific DNA, enables histological identification of cells bearing numerical chromosome aberrations and cytogenetic analysis of composite tumors. We studied routinely processed tissues from seven glioblastomas and three gliosarcomas using biotinylated probes to pericentromeric alpha-satellite sequences on chromosomes 10, 17 and X. By applying various pretreatment protocols, an evaluable compromise between morphology and signal intensity was obtained in most cases. Compared to vascular cells with normal chromosomal counts, a significant subpopulation of glioblastoma cells showed monosomy 10 (four of five cases), monosomy 17 (one of seven cases) and loss of one X chromosome (one of seven cases). All monosomy 10 cases comprised additional areas where two copies of chromosome 10 were retained. Among the gliosarcomas, both the glioma and the sarcoma portion showed monosomy 10 in one case and monosomy 17 in another case. In contrast, in the third case of gliosarcoma, monosomy 10 was found only in the glioma portion, whereas a gain of chromosome X was observed in the sarcoma portion. We conclude that: (1) numerical chromosome aberrations can be detected in routinely processed brain tumor biopsy specimens using interphase cytogenetics, making retrospective studies feasible; (2) glioblastomas show intratumoral cytogenetic heterogeneity with formation of monoclonal cell clusters; and (3) sarcoma and glioma elements in gliosarcomas may exhibit the same or different numerical chromosome aberrations, suggesting various histogenetic pathways of the sarcoma-like portion.
journal_name
Acta Neuropatholjournal_title
Acta neuropathologicaauthors
Paulus W,Bayas A,Ott G,Roggendorf Wdoi
10.1007/BF00389493subject
Has Abstractpub_date
1994-01-01 00:00:00pages
420-5issue
5eissn
0001-6322issn
1432-0533journal_volume
88pub_type
杂志文章abstract::MicroRNAs are recognized as important regulators of many facets of physiological brain function while also being implicated in the pathogenesis of several neurological disorders. Dysregulation of miR155 is widely reported across a variety of neurodegenerative conditions, including Alzheimer's disease (AD), Parkinson's...
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abstract::In order to further evaluate the parameters whereby intracerebral administration of recombinant α-synuclein (αS) induces pathological phenotypes in mice, we conducted a series of studies where αS fibrils were injected into the brains of M83 (A53T) and M47 (E46K) αS transgenic (Tg) mice, and non-transgenic (nTg) mice. ...
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abstract::The presence and distribution of human immunodeficiency virus (HIV) were examined in the CNS of two children with severe HIV encephalitis and myelitis. Using polymerase chain reaction-mediated DNA amplification and subsequent Southern analysis, proviral HIV gag sequences were identified in brain tissue of both patient...
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journal_title:Acta neuropathologica
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journal_title:Acta neuropathologica
pub_type: 杂志文章
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abstract::Paediatric high grade glioma (pHGG) (World Health Organisation astrocytoma grades III and IV) remains poor prognosis tumours, with a median survival of only 15 months following diagnosis. Current investigation of anti-angiogenic strategies has focused on adult glioblastoma multiforme (GBM) with phase III trials target...
journal_title:Acta neuropathologica
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abstract::Histochemical investigations were carried out on skeletal muscle biopsies from ten patients with chronic progressive external ophthalmoplegia with ragged-red fibers (RRF). In addition to the RRF, mild myopathic change consisting of variation in size of both type 1 and 2 fibers was seen in all patients, as well as neur...
journal_title:Acta neuropathologica
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abstract::Neurological signs were observed in 3 lambs at approximately 1 month of age, in a flock of 1 ram and 29 ewes with 43 lambs. Deterioration occurred such that the lambs had either died or been killed by 4 months of age. Necropsies of two of these lambs revealed a diffuse encephalopathy in which the most prominent featur...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/BF00309632
更新日期:1995-01-01 00:00:00
abstract::The present investigation examined the morphological characteristics of epiplexus macrophages following a single intracisternal injection of the antigen, bacillus Calmette-Guerin (BCG). Three days following injection of BCG (0.5 - 4.0 X 10(8) viable microorganisms), mongrel dogs were perfused with buffered aldehydes. ...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/BF00690545
更新日期:1979-08-01 00:00:00
abstract::We studied a 27-year-old woman who died after a 6-year history of progressive dementia, dystonia, ataxia, apraxia, spasticity, choreoathetosis, visual and auditory hallucinations, and optic atrophy. Magnetic resonance imaging showed decreased intensity in the globus pallidus, substantia nigra, and dentate nuclei in T2...
journal_title:Acta neuropathologica
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更新日期:2000-11-01 00:00:00
abstract::A 50-year-old carpenter died in Western Pennsylvania of rabies on January 4, 1979. He had been hospitalized in an intensive care unit for 28 days. The diagnosis was made postmortem from light and electron microscopic examination of central nervous system tissue. Immunofluorescence studies confirmed the diagnosis later...
journal_title:Acta neuropathologica
pub_type: 杂志文章
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更新日期:1980-01-01 00:00:00
abstract::MicroRNA (miRNA) expression was assessed in human cerebral cortical gray matter (GM) and white matter (WM) in order to provide the first insights into the difference between GM and WM miRNA repertoires across a range of Alzheimer's disease (AD) pathology. RNA was isolated separately from GM and WM portions of superior...
journal_title:Acta neuropathologica
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journal_title:Acta neuropathologica
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abstract::We described a new type of cytoplasmic inclusion in the choroidal epithelial cells of humans. The inclusions usually appeared as brown, round or elongated bodies with or without an inner core, ranging in size from 1.3 to 7.0 micron. Histochemically, they contained polysaccharides, proteins and compound lipids. Ultrast...
journal_title:Acta neuropathologica
pub_type: 杂志文章
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journal_title:Acta neuropathologica
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journal_title:Acta neuropathologica
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更新日期:1996-11-01 00:00:00
abstract::This report presents the largest series of consecutive, neuropathologically confirmed cases of frontotemporal degeneration (FTD). Prior studies have found dementia lacking distinctive histology (DLDH) to be the most common pathology underlying the clinical diagnosis of FTD. In this series of 76 cases, 29 (38%) were fo...
journal_title:Acta neuropathologica
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更新日期:2004-11-01 00:00:00
abstract::During corticogenesis, neurons adopt different migration pathways to reach their final position. The precursors of pyramidal neurons migrate radially, whereas most of the GABA-containing interneurons are generated in the ventral telencephalon and migrate tangentially into the neocortex. Then, they use a radial migrati...
journal_title:Acta neuropathologica
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更新日期:2010-10-01 00:00:00
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更新日期:2012-02-01 00:00:00
abstract::Aging and neurodegeneration are often accompanied by a functionally impaired ubiquitin-proteasome system (UPS). In tauopathies and polyglutamine diseases, a mutant form of ubiquitin B (UBB(+1)) accumulates in disease-specific aggregates. UBB(+1) mRNA is generated at low levels in vivo during transcription from the ubi...
journal_title:Acta neuropathologica
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更新日期:2012-08-01 00:00:00
abstract::A case of progressive polyneuropathy associated with Waldenström's macroglobulinaemia is reported. A monoclonal IgM-lambda gradient was detected in the serum and cerebro-spinal fluid. By electro-immunoblot analysis antibodies against myelin-associated glycoprotein were found in the serum and cerebro-spinal fluid. The ...
journal_title:Acta neuropathologica
pub_type: 杂志文章
doi:10.1007/BF00690395
更新日期:1984-01-01 00:00:00
abstract::Frontotemporal dementia (FTD) is a prevalent neurodegenerative disease of heterogeneous histopathology. Neuropathological subtypes are identified on the basis of the presence or absence of tau- or ubiquitin-positive neuronal inclusions. Our recent work has established four disease stages that are independent of neurop...
journal_title:Acta neuropathologica
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doi:10.1007/s00401-004-0917-0
更新日期:2004-12-01 00:00:00
abstract::Defects of major histocompatibility complex (MHC) class I antigen-processing machinery (APM) components have been shown to contribute to immune escape of malignant cells. We investigated the expression of APM components in astrocytomas without detectable defects in HLA class I antigen expression and correlated it with...
journal_title:Acta neuropathologica
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doi:10.1007/s00401-007-0231-8
更新日期:2007-08-01 00:00:00
abstract::Healthy nodes of Ranvier are crucial for action potential propagation along myelinated axons, both in the central and in the peripheral nervous system. Surprisingly, the node of Ranvier has often been neglected when describing CNS disorders, with most pathologies classified simply as being due to neuronal defects in t...
journal_title:Acta neuropathologica
pub_type: 杂志文章,评审
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更新日期:2014-08-01 00:00:00