TY  - JOUR
A1  - Kosnopfel, Corinna
A1  - Sinnberg, Tobias
A1  - Sauer, Birgit
A1  - Niessner, Heike
A1  - Muenchow, Alina
A1  - Fehrenbacher, Birgit
A1  - Schaller, Martin
A1  - Mertens, Peter R.
A1  - Garbe, Claus
A1  - Thakur, Basant Kumar
A1  - Schittek, Birgit
T1  - Tumour progression stage-dependent secretion of YB-1 stimulates melanoma cell migration and invasion
JF  - Cancers
N2  - Secreted factors play an important role in intercellular communication. Therefore, they are not only indispensable for the regulation of various physiological processes but can also decisively advance the development and progression of tumours. In the context of inflammatory disease, Y-box binding protein 1 (YB-1) is actively secreted and the extracellular protein promotes cell proliferation and migration. In malignant melanoma, intracellular YB-1 expression increases during melanoma progression and represents an unfavourable prognostic marker. Here, we show active secretion of YB-1 from melanoma cells as opposed to benign cells of the skin. Intriguingly, YB-1 secretion correlates with the stage of melanoma progression and depends on a calcium- and ATP-dependent non-classical secretory pathway leading to the occurrence of YB-1 in the extracellular space as a free protein. Along with an elevated YB-1 secretion of melanoma cells in the metastatic growth phase, extracellular YB-1 exerts a stimulating effect on melanoma cell migration, invasion, and tumourigenicity. Collectively, these data suggest that secreted YB-1 plays a functional role in melanoma cell biology, stimulating metastasis, and may serve as a novel biomarker in malignant melanoma that reflects tumour aggressiveness.
KW  - melanoma
KW  - secretion
KW  - Y-box binding protein 1
KW  - migration and invasiveness
Y1  - 2020
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-211206
SN  - 2072-6694
VL  - 12
IS  - 8
ER  - 
TY  - JOUR
A1  - Huss, André M.
A1  - Halbgebauer, Steffen
A1  - Öckl, Patrick
A1  - Trebst, Corinna
A1  - Spreer, Annette
A1  - Borisow, Nadja
A1  - Harrer, Andrea
A1  - Brecht, Isabel
A1  - Balint, Bettina
A1  - Stich, Oliver
A1  - Schlegel, Sabine
A1  - Retzlaff, Nele
A1  - Winkelmann, Alexander
A1  - Roesler, Romy
A1  - Lauda, Florian
A1  - Yildiz, Özlem
A1  - Voß, Elke
A1  - Muche, Rainer
A1  - Rauer, Sebastian
A1  - Bergh, Florian Then
A1  - Otto, Markus
A1  - Paul, Friedemann
A1  - Wildemann, Brigitte
A1  - Kraus, Jörg
A1  - Ruprecht, Klemens
A1  - Stangel, Martin
A1  - Buttmann, Mathias
A1  - Zettl, Uwe K.
A1  - Tumani, Hayrettin
T1  - Importance of cerebrospinal fluid analysis in the era of McDonald 2010 criteria: a German-Austrian retrospective multicenter study in patients with a clinically isolated syndrome
JF  - Journal of Neurology
N2  - The majority of patients presenting with a first clinical symptom suggestive of multiple sclerosis (MS) do not fulfill the MRI criteria for dissemination in space and time according to the 2010 revision of the McDonald diagnostic criteria for MS and are thus classified as clinically isolated syndrome (CIS). To re-evaluate the utility of cerebrospinal fluid (CSF) analysis in the context of the revised McDonald criteria from 2010, we conducted a retrospective multicenter study aimed at determining the prevalence and predictive value of oligoclonal IgG bands (OCBs) in patients with CIS. Patients were recruited from ten specialized MS centers in Germany and Austria. We collected data from 406 patients; at disease onset, 44/406 (11 %) fulfilled the McDonald 2010 criteria for MS. Intrathecal IgG OCBs were detected in 310/362 (86 %) of CIS patients. Those patients were twice as likely to convert to MS according to McDonald 2010 criteria as OCB-negative individuals (hazard ratio = 2.1, p = 0.0014) and in a shorter time period of 25 months (95 % CI 21-34) compared to 47 months in OCB-negative individuals (95 % CI 36-85). In patients without brain lesions at first attack and presence of intrathecal OCBs (30/44), conversion rate to MS was 60 % (18/30), whereas it was only 21 % (3/14) in those without OCBs. Our data confirm that in patients with CIS the risk of conversion to MS substantially increases if OCBs are present at onset. CSF analysis definitely helps to evaluate the prognosis in patients who do not have MS according to the revised McDonald criteria.
KW  - multiple sklerosis
KW  - MRI criteria
KW  - conversion
KW  - MS
KW  - CSF
KW  - biomarker
KW  - OCB
Y1  - 2016
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-186619
VL  - 263
IS  - 12
ER  -