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  • 1
    Abstract: Diffuse intrinsic pontine glioma (DIPG) is a rare and deadly childhood malignancy. After 40 years of mostly single-center, often non-randomized trials with variable patient inclusions, there has been no improvement in survival. It is therefore time for international collaboration in DIPG research, to provide new hope for children, parents and medical professionals fighting DIPG. In a first step towards collaboration, in 2011, a network of biologists and clinicians working in the field of DIPG was established within the European Society for Paediatric Oncology (SIOPE) Brain Tumour Group: the SIOPE DIPG Network. By bringing together biomedical professionals and parents as patient representatives, several collaborative DIPG-related projects have been realized. With help from experts in the fields of information technology, and legal advisors, an international, web-based comprehensive database was developed, The SIOPE DIPG Registry and Imaging Repository, to centrally collect data of DIPG patients. As for April 2016, clinical data as well as MR-scans of 694 patients have been entered into the SIOPE DIPG Registry/Imaging Repository. The median progression free survival is 6.0 months (95% Confidence Interval (CI) 5.6-6.4 months) and the median overall survival is 11.0 months (95% CI 10.5-11.5 months). At two and five years post-diagnosis, 10 and 2% of patients are alive, respectively. The establishment of the SIOPE DIPG Network and SIOPE DIPG Registry means a paradigm shift towards collaborative research into DIPG. This is seen as an essential first step towards understanding the disease, improving care and (ultimately) cure for children with DIPG.
    Type of Publication: Journal article published
    PubMed ID: 28110411
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  • 2
    ISSN: 1365-4632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: : Urokinase (UK, Mr 55,000) and tissue-type plasminogen activator (tPA, Mr 74,000) are serine proteinases involved in many biological processes, ie, cell migration, neoplastic transformation, and extracellular proteolysis. Cutaneous fibrinolytic activity (dependent on the activity of UK and tPA) was studied with the autohistographic fibrin film method in 40 patients affected by psoriasis vulgaris before and after topical (anthralin, betamethasone valerate, hydrocolloid occlusive dressing) or systemic psoralen-ultraviolet-light (PUVA) treatments. Autohistographic studies also were performed after apposition of monoclonal antibodies directed against the catalytic site of UK and tPA. Finally, UK and tPA were localized immunohistochemically in the psoriatic plaques and in controls using the immunoperoxidase procedure based on the biotin/avidin system. UK and tPA immunoreactivity was present in the cytoplasm and around the outlines of keratinocytes in the psoriatic patches before treatment and in the patches not cleared after treatment, while it was not detectable in normal epidermis, in the unaffected psoriatic epidermis, and in the cleared psoriatic skin. Cutaneous fibrinolytic activity was present in the cases in which UK and tPA were detected histochemically and, in the psoriatic epidermis, it was abolished by preincubation with anti-tPA but not with anti-UK antibodies. This study suggests that established topical and systemic treatments for psoriasis possess UK and tPA antagonist activity.
    Type of Medium: Electronic Resource
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