eprintid: 26886 rev_number: 13 eprint_status: archive userid: 4576 dir: disk0/00/02/68/86 datestamp: 2019-08-29 09:47:10 lastmod: 2019-10-01 16:06:20 status_changed: 2019-08-29 09:47:10 type: doctoralThesis metadata_visibility: show creators_name: Viehweger, Florian title: Inhibition/knock down and stimulation of the canonical WNT/ß Catenin signaling pathway in rhabdomyosarcoma title_de: Inhibition/Knock-down und Stimulation des kanonischen WNT/ß-Catenin-Signalweges im Rhabdomyosarkom subjects: 610 divisions: 62900 adv_faculty: af-06 cterms_swd: Rhabdomyosarkom cterms_swd: WNT Signalwegs cterms_swd: ß-Catenin abstract: The development of skeletal muscle from immature precursors is partially driven by canonical WNT/β-catenin signaling. Rhabdomyosarcomas (RMS) are immature skeletal muscle-like, highly lethal cancers with a variably pronounced blockade of muscle differentiation. To investigate whether canonical β-catenin signaling in RMS is involved in differentiation and aggressiveness of RMS, we analyzed the effects of WNT3A and of a siRNA-mediated or pharmacologically induced β-catenin knock-down on proliferation, apoptosis and differentiation of embryonal and alveolar RMS cell lines. While the canonical WNT pathway was maintained in all cell lines as shown by WNT3A induced AXIN expression, more distal steps including transcriptional activation of its key target genes were consistently impaired. In addition, activation or inhibition of canonical WNT/β-catenin only moderately affected proliferation, apoptosis or myodifferentiation of the RMS tumor cells. Together our data indicates a subordinary role of the canonical WNT/β-catenin signaling for RMS proliferation, apoptosis or differentiation and thus aggressiveness of this malignant childhood tumor. date: 2019 id_scheme: PubMed ppn_swb: 1676168354 own_urn: urn:nbn:de:bsz:16-heidok-268868 date_accepted: 2019-07-03 advisor: HASH(0x564e1c471b90) language: ger bibsort: VIEHWEGERFINHIBITION2019 full_text_status: public citation: Viehweger, Florian (2019) Inhibition/knock down and stimulation of the canonical WNT/ß Catenin signaling pathway in rhabdomyosarcoma. [Dissertation] document_url: https://archiv.ub.uni-heidelberg.de/volltextserver/26886/1/Viehweger_Florian%20Doktorarbeit_17_11_18_3.pdf