TY  - JOUR
A1  - Chen, Jiangtian
A1  - Reiher, Wencke
A1  - Hermann-Luibl, Christiane
A1  - Sellami, Azza
A1  - Cognigni, Paola
A1  - Kondo, Shu
A1  - Helfrich-Förster, Charlotte
A1  - Veenstra, Jan A.
A1  - Wegener, Christian
T1  - Allatostatin A Signalling in Drosophila Regulates Feeding and Sleep and Is Modulated by PDF
JF  - PLoS Genetics
N2  - Feeding and sleep are fundamental behaviours with significant interconnections and cross-modulations. The circadian system and peptidergic signals are important components of this modulation, but still little is known about the mechanisms and networks by which they interact to regulate feeding and sleep. We show that specific thermogenetic activation of peptidergic Allatostatin A (AstA)-expressing PLP neurons and enteroendocrine cells reduces feeding and promotes sleep in the fruit fly Drosophila. The effects of AstA cell activation are mediated by AstA peptides with receptors homolog to galanin receptors subserving similar and apparently conserved functions in vertebrates. We further identify the PLP neurons as a downstream target of the neuropeptide pigment-dispersing factor (PDF), an output factor of the circadian clock. PLP neurons are contacted by PDF-expressing clock neurons, and express a functional PDF receptor demonstrated by cAMP imaging. Silencing of AstA signalling and continuous input to AstA cells by tethered PDF changes the sleep/activity ratio in opposite directions but does not affect rhythmicity. Taken together, our results suggest that pleiotropic AstA signalling by a distinct neuronal and enteroendocrine AstA cell subset adapts the fly to a digestive energy-saving state which can be modulated by PDF.
KW  - neurons
KW  - neuroimaging
KW  - circadian rhythms
KW  - food consumption
KW  - sleep
KW  - biological locomotion
KW  - Drosophila melanogaster
KW  - signal peptides
Y1  - 2016
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-178170
VL  - 12
IS  - 9
ER  - 
TY  - JOUR
A1  - Metzenmacher, Martin
A1  - Váraljai, Renáta
A1  - Hegedüs, Balazs
A1  - Cima, Igor
A1  - Forster, Jan
A1  - Schramm, Alexander
A1  - Scheffler, Björn
A1  - Horn, Peter A.
A1  - Klein, Christoph A.
A1  - Szarvas, Tibor
A1  - Reis, Hennig
A1  - Bielefeld, Nicola
A1  - Roesch, Alexander
A1  - Aigner, Clemens
A1  - Kunzmann, Volker
A1  - Wiesweg, Marcel
A1  - Siveke, Jens T.
A1  - Schuler, Martin
A1  - Lueong, Smiths S.
T1  - Plasma Next Generation Sequencing and Droplet Digital-qPCR-Based Quantification of Circulating Cell-Free RNA for Noninvasive Early Detection of Cancer
JF  - Cancers
N2  - Early detection of cancer holds high promise for reducing cancer-related mortality. Detection of circulating tumor-specific nucleic acids holds promise, but sensitivity and specificity issues remain with current technology. We studied cell-free RNA (cfRNA) in patients with non-small cell lung cancer (NSCLC; n = 56 stage IV, n = 39 stages I-III), pancreatic cancer (PDAC, n = 20 stage III), malignant melanoma (MM, n = 12 stage III-IV), urothelial bladder cancer (UBC, n = 22 stage II and IV), and 65 healthy controls by means of next generation sequencing (NGS) and real-time droplet digital PCR (RT-ddPCR). We identified 192 overlapping upregulated transcripts in NSCLC and PDAC by NGS, more than 90% of which were noncoding. Previously reported transcripts (e.g., HOTAIRM1) were identified. Plasma cfRNA transcript levels of POU6F2-AS2 discriminated NSCLC from healthy donors (AUC = 0.82 and 0.76 for stages IV and I–III, respectively) and significantly associated (p = 0.017) with the established tumor marker Cyfra 21-1. cfRNA yield and POU6F2-AS transcript abundance discriminated PDAC patients from healthy donors (AUC = 1.0). POU6F2-AS2 transcript was significantly higher in MM (p = 0.044). In summary, our findings support further validation of cfRNA detection by RT-ddPCR as a biomarker for early detection of solid cancers.
KW  - liquid biopsy
KW  - cfRNA
KW  - cancer
KW  - ddPCR
KW  - NGS
KW  - POU6F2-AS2
KW  - early detection
Y1  - 2020
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-200553
SN  - 2072-6694
VL  - 12
IS  - 2
ER  - 
TY  - JOUR
A1  - Fröhlich, Ellen
A1  - Sassenrath, Claudia
A1  - Nadji-Ohl, Minou
A1  - Unteroberdörster, Meike
A1  - Rückriegel, Stefan
A1  - Brelie, Christian von der
A1  - Roder, Constantin
A1  - Forster, Marie-Therese
A1  - Schommer, Stephan
A1  - Löhr, Mario
A1  - Pala, Andrej
A1  - Goebel, Simone
A1  - Mielke, Dorothee
A1  - Gerlach, Rüdiger
A1  - Renovanz, Mirjam
A1  - Wirtz, Christian Rainer
A1  - Onken, Julia
A1  - Czabanka, Marcus
A1  - Tatagiba, Marcos Soares
A1  - Rohde, Veit
A1  - Ernestus, Ralf-Ingo
A1  - Vajkoczy, Peter
A1  - Gansland, Oliver
A1  - Coburger, Jan
T1  - Resilience in lower grade glioma patients
JF  - Cancers
N2  - Current data show that resilience is an important factor in cancer patients’ well-being. We aim to explore the resilience of patients with lower grade glioma (LGG) and the potentially influencing factors. We performed a cross-sectional assessment of adult patients with LGG who were enrolled in the LoG-Glio registry. By phone interview, we administered the following measures: Resilience Scale (RS-13), distress thermometer, Montreal Cognitive Assessment Test for visually impaired patients (MoCA-Blind), internalized stigmatization by brain tumor (ISBI), Eastern Cooperative Oncological Group performance status (ECOG), patients’ perspective questionnaire (PPQ) and typical clinical parameters. We calculated correlations and multivariate regression models. Of 74 patients who were assessed, 38% of those showed a low level of resilience. Our results revealed significant correlations of resilience with distress (p < 0.001, −0.49), MOCA (p = 0.003, 0.342), ECOG (p < 0.001, −0.602), stigmatization (p < 0.001, −0.558), pain (p < 0.001, −0.524), and occupation (p = 0.007, 0.329). In multivariate analyses, resilience was negatively associated with elevated ECOG (p = 0.020, β = −0.383) and stigmatization levels (p = 0.008, β = −0.350). Occupation showed a tendency towards a significant association with resilience (p = 0.088, β = −0.254). Overall, low resilience affected more than one third of our cohort. Low functional status is a specific risk factor for low resilience. The relevant influence of stigmatization on resilience is a novel finding for patients suffering from a glioma and should be routinely identified and targeted in clinical routine.
KW  - resilience
KW  - lower grade glioma
KW  - diffuse astrocytoma
KW  - oligodendroglioma
KW  - RS-13
KW  - distress
KW  - internalized stigmatization
KW  - ISBI
KW  - occupation
KW  - pain
Y1  - 2022
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-297518
SN  - 2072-6694
VL  - 14
IS  - 21
ER  -