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Berlin Brandenburg

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  • 1
    Language: English
    In: Science, 2012, Vol.336(6079), pp.344-347
    Description: Recent studies have shown that the polar bear matriline (mitochondrial DNA) evolved from a brown bear lineage since the late Pleistocene, potentially indicating rapid speciation and adaption to arctic conditions. Here, we present a high-resolution data set from multiple independent loci across the nuclear...
    Keywords: Medicin Och Hälsovetenskap ; Klinisk Medicin ; Neurologi ; Medical And Health Sciences ; Clinical Medicine ; Neurology ; Medicin Och Hälsovetenskap ; Klinisk Medicin ; Kirurgi ; Medical And Health Sciences ; Clinical Medicine ; Surgery
    ISSN: 1095-9203
    ISSN: 00368075
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  • 2
    Language: English
    In: Molecular Cancer, Sept 29, 2009, Vol.8, p.80
    Description: Background Chemoresistance acquisition may influence cancer cell biology. Here, bioinformatics analysis of gene expression data was used to identify chemoresistance-associated changes in neuroblastoma biology. Results Bioinformatics analysis of gene expression data revealed that expression of angiogenesis-associated genes significantly differs between chemosensitive and chemoresistant neuroblastoma cells. A subsequent systematic analysis of a panel of 14 chemosensitive and chemoresistant neuroblastoma cell lines in vitro and in animal experiments indicated a consistent shift to a more pro-angiogenic phenotype in chemoresistant neuroblastoma cells. The molecular mechanims underlying increased pro-angiogenic activity of neuroblastoma cells are individual and differ between the investigated chemoresistant cell lines. Treatment of animals carrying doxorubicin-resistant neuroblastoma xenografts with doxorubicin, a cytotoxic drug known to exert anti-angiogenic activity, resulted in decreased tumour vessel formation and growth indicating chemoresistance-associated enhanced pro-angiogenic activity to be relevant for tumour progression and to represent a potential therapeutic target. Conclusion A bioinformatics approach allowed to identify a relevant chemoresistance-associated shift in neuroblastoma cell biology. The chemoresistance-associated enhanced pro-angiogenic activity observed in neuroblastoma cells is relevant for tumour progression and represents a potential therapeutic target.
    Keywords: Drug Resistance -- Health Aspects ; Drug Resistance -- Genetic Aspects ; Drug Resistance -- Research ; Gene Expression -- Research ; Neuroblastoma -- Genetic Aspects ; Neuroblastoma -- Development And Progression ; Neuroblastoma -- Drug Therapy ; Neuroblastoma -- Research ; Computational Biology -- Usage
    ISSN: 1476-4598
    Source: Cengage Learning, Inc.
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