scholarly journals Hypericum perforatum L. subsp. perforatum induces inhibition of free radicals and enhanced phototoxicity in human melanoma cells under ultraviolet light

2013 ◽  
Vol 46 (2) ◽  
pp. 193-202 ◽  
Author(s):  
G. Menichini ◽  
C. Alfano ◽  
M. Marrelli ◽  
C. Toniolo ◽  
E. Provenzano ◽  
...  
Keyword(s):  
Free Radicals ◽  
Ultraviolet Light ◽  
Hypericum Perforatum ◽  
Melanoma Cells ◽  
Human Melanoma ◽  
Human Melanoma Cells ◽  
Hypericum Perforatum L

Adipocytes Contribute to Resistance of Human Melanoma Cells to Chemotherapy and Targeted Therapy

2014 ◽  
Vol 21 (10) ◽  
pp. 1255-1267 ◽  
Author(s):  
M. Chi ◽  
J. Chen ◽  
Y. Ye ◽  
Hsin-Yi Tseng ◽  
F. Lai ◽  
...  
Keyword(s):  
Targeted Therapy ◽  
Melanoma Cells ◽  
Human Melanoma ◽  
Human Melanoma Cells

scholarly journals Phosphorylation of ectopically expressed L-plastin enhances invasiveness of human melanoma cells

2007 ◽  
Vol 120 (12) ◽  
pp. 2590-2599 ◽  
Author(s):  
Martin Klemke ◽  
Maria T. Rafael ◽  
Guido H. Wabnitz ◽  
Tatjana Weschenfelder ◽  
Mathias H. Konstandin ◽  
...  
Keyword(s):  
Melanoma Cells ◽  
Human Melanoma ◽  
Human Melanoma Cells

scholarly journals Mitochondrial function is controlled by melatonin and its metabolites in vitro in human melanoma cells

2021 ◽  
Vol 70 (3) ◽  
Author(s):  
Bernadetta Bilska ◽  
Fiona Schedel ◽  
Anna Piotrowska ◽  
Joanna Stefan ◽  
Michal Zmijewski ◽  
...  
Keyword(s):  
Mitochondrial Function ◽  
Melanoma Cells ◽  
Human Melanoma ◽  
Human Melanoma Cells

scholarly journals Ca2+ overload- and ROS-associated mitochondrial dysfunction contributes to δ-tocotrienol-mediated paraptosis in melanoma cells

APOPTOSIS ◽  
2021 ◽  
Author(s):  
Michela Raimondi ◽  
Fabrizio Fontana ◽  
Monica Marzagalli ◽  
Matteo Audano ◽  
Giangiacomo Beretta ◽  
...  
Keyword(s):  
Endoplasmic Reticulum ◽  
Cell Death ◽  
Mitochondrial Dysfunction ◽  
Atp Synthesis ◽  
Melanoma Cells ◽  
Human Melanoma ◽  
Ros Generation ◽  
Therapy Outcomes ◽  
Human Melanoma Cells ◽  
Oxphos Complex

Abstract Melanoma is an aggressive tumor with still poor therapy outcomes. δ-tocotrienol (δ-TT) is a vitamin E derivative displaying potent anti-cancer properties. Previously, we demonstrated that δ-TT triggers apoptosis in human melanoma cells. Here, we investigated whether it might also activate paraptosis, a non-canonical programmed cell death. In accordance with the main paraptotic features, δ-TT was shown to promote cytoplasmic vacuolization, associated with endoplasmic reticulum/mitochondrial dilation and protein synthesis, as well as MAPK activation in A375 and BLM cell lines. Moreover, treated cells exhibited a significant reduced expression of OXPHOS complex I and a marked decrease in oxygen consumption and mitochondrial membrane potential, culminating in decreased ATP synthesis and AMPK phosphorylation. This mitochondrial dysfunction resulted in ROS overproduction, found to be responsible for paraptosis induction. Additionally, δ-TT caused Ca2+ homeostasis disruption, with endoplasmic reticulum-derived ions accumulating in mitochondria and activating the paraptotic signaling. Interestingly, by using both IP3R and VDAC inhibitors, a close cause-effect relationship between mitochondrial Ca2+ overload and ROS generation was evidenced. Collectively, these results provide novel insights into δ-TT anti-melanoma activity, highlighting its ability to induce mitochondrial dysfunction-mediated paraptosis. Graphic Abstract δ-tocotrienol induces paraptotic cell death in human melanoma cells, causing endoplasmic reticulum dilation and mitochondrial swelling. These alterations induce an impairment of mitochondrial function, ROS production and calcium overload.

scholarly journals Polyamine and polyamine analog regulation of spermidine/spermine N1-acetyltransferase in MALME-3M human melanoma cells.

1993 ◽  
Vol 268 (25) ◽  
pp. 19118-19125
Author(s):  
M. Fogel-Petrovic ◽  
N.W. Shappell ◽  
R.J. Bergeron ◽  
C.W. Porter
Keyword(s):  
Melanoma Cells ◽  
Human Melanoma ◽  
Human Melanoma Cells ◽  
Polyamine Analog
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