The aim of the present study was the characterisation of genetic alterations in two different experimental gliomas, induced in rats from the inbred strain BDIX by transplacental ethylnitrosourea with subsequent serial transplantation. The genes investigated have been shown previously to be altered during human glial tumour progression and include the gene for the epidermal growth factor receptor (EGFR), the genes for the cell cycle regulators cyclin dependent kinase 4 (CDK4), cyclinD1 (cycD1), the p16 gene (MTS1/INK4) and the retinoblastoma gene (RB). Using a semi-quantitative PCR-based screening method no gross alterations could be detected in these genes, demonstrating that nitrosourea-induced glial tumours of rats do not harbour those genetic changes which typically arise in human malignant gliomas. Thus, the use of this tumour model for gene therapy trials is questionable.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/S0940-2993(99)80059-1 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Half-Sandwich Organometallic Ir(III) and Ru(II) Compounds and their Interactions with Biomolecules.
Chempluschem
January 2025
Faculty of Chemistry, University of Wrocław, ul. F. Joliot-Curie 14, 50-383, Wrocław, Poland.
This review highlights how a Ir(III) and Ru(II) coordination complexes can change theirs cytotoxic activity by interacting with a biomolecules such as deoxyribonucleic acid (DNA), human albumins (HSA), nicotinamide adenine dinucleotide (NADH), and glutathione (GSH). We have selected biomolecules (DNA, NADH, GSH, and HSA) based on their significant biological roles and importance in cellular processes. Moreover, this review may provide useful information for the development of new half-sandwich Ir(III) and Ru(II) complexes with desired properties and relevant biological activities.
View Article and Find Full Text PDFNuclear blebs are associated with destabilized chromatin packing domains.
J Cell Sci
January 2025
Department of Biomedical Engineering, Northwestern University, Evanston, Illinois, 60208, USA.
Disrupted nuclear shape is associated with multiple pathological processes including premature aging disorders, cancer-relevant chromosomal rearrangements, and DNA damage. Nuclear blebs (i.e.
View Article and Find Full Text PDFClearing the path for whole-mount labeling and quantification of neuron- and vessel-density in adipose tissue.
J Cell Sci
January 2025
Institute of Molecular Biosciences, University of Graz, Graz, Austria.
White adipose tissue (WAT) comprises a plethora of cell types beyond adipocytes forming a regulatory network that ensures systemic energy homeostasis. Intertissue communication is facilitated by metabolites and signaling molecules that are spread by vasculature and nerves. Previous works indicated that WAT responds to environmental cues by adapting the abundance of these "communication routes", however, high intra-tissue heterogeneity questions the informative value of bulk or single cell analyses and underscores the necessity of whole-mount imaging.
View Article and Find Full Text PDFComprehensive Hematological and molecular Characterization of hemoglobin Hekinan [α27(B8)Glu→Asp(α1), :c.84G > T] in a Large Thai cohort.
Hematology
December 2025
Division of Hematology, Department of Medicine, Faculty of Medicine, Chulalongkorn University, and King Chulalongkorn Memorial Hospital, Thai Red Cross, Bangkok, Thailand.
Background: Hemoglobin (Hb) Hekinan is a prevalent α-globin variant frequently missed in thalassemia screening centers using high-performance liquid chromatography (HPLC) or capillary electrophoresis. This study aims to investigate the hematological and molecular characteristics of Hb Hekinan in a large cohort.
Methods: Hb variants were identified using isoelectric focusing (IEF) and HPLC.
A chromosome-level, haplotype-resolved genome assembly and annotation for the Eurasian minnow (Leuciscidae: Phoxinus phoxinus) provide evidence of haplotype diversity.
Gigascience
January 2025
Leibniz Institute for the Analysis of Biodiversity Change, Museum Koenig Bonn, 53113 Bonn, Germany.
Background: In this study, we present an in-depth analysis of the Eurasian minnow (Phoxinus phoxinus) genome, highlighting its genetic diversity, structural variations, and evolutionary adaptations. We generated an annotated haplotype-phased, chromosome-level genome assembly (2n = 50) by integrating high-fidelity (HiFi) long reads and chromosome conformation capture data (Hi-C).
Results: We achieved a haploid size of 940 megabase pairs (Mbp) for haplome 1 and 929 Mbp for haplome 2 with high scaffold N50 values of 36.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!