Abstract:
:Verteporfin (VP), a light-activated drug used in photodynamic therapy for the treatment of choroidal neovascular membranes, has also been shown to be an effective inhibitor of malignant cells. Recently, studies have demonstrated that, even without photo-activation, VP may still inhibit certain tumor cell lines, including ovarian cancer, hepatocarcinoma and retinoblastoma, through the inhibition of the YAP-TEAD complex. In this study, we examined the effects of VP without light activation on human glioma cell lines (LN229 and SNB19). Through western blot analysis, we identified that human glioma cells that were exposed to VP without light activation demonstrated a downregulation of YAP-TEAD-associated downstream signaling molecules, including c-myc, axl, CTGF, cyr61 and survivin and upregulation of the tumor growth inhibitor molecule p38 MAPK. In addition, we observed that expression of VEGFA and the pluripotent marker Oct-4 were also decreased. Verteporfin did not alter the Akt survival pathway or the mTor pathway but there was a modest increase in LC3-IIB, a marker of autophagosome biogenesis. This study suggests that verteporfin should be further explored as an adjuvant therapy for the treatment of glioblastoma.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Al-Moujahed A,Brodowska K,Stryjewski TP,Efstathiou NE,Vasilikos I,Cichy J,Miller JW,Gragoudas E,Vavvas DGdoi
10.1038/s41598-017-07632-8subject
Has Abstractpub_date
2017-08-08 00:00:00pages
7602issue
1issn
2045-2322pii
10.1038/s41598-017-07632-8journal_volume
7pub_type
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