Combined Treatment of Adriamycin and Dipyridamole Inhibits Lung Metastasis of B16 Melanoma Cells in Mice

1990 ◽  
Vol 22 (4) ◽  
pp. 213-218 ◽  
Author(s):  
Y. Sakaguchi ◽  
Y. Emi ◽  
Y. Maehara ◽  
S. Kohnoe ◽  
K. Sugimachi
2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Yu-Jen Chen ◽  
Ying-Yin Chen ◽  
Yi-Feng Lin ◽  
Hsuan-Yun Hu ◽  
Hui-Fen Liao

Melanoma is a malignancy with high potential to invasion and treatment resistance. Theα-melanocyte-stimulating hormone (α-MSH) signal transduction involving Wnt/β-catenin, c-Kit, and microphthalmia-associated transcription factor (MITF), a known pathway to produce melanin, has been demonstrated as one of cancer stem cell characteristics. This study was aimed to examine the effect of resveratrol, an abundant ingredient of grape and medicinal plants, onα-MSH signaling, viability, and invasiveness in melanoma cells. Byα-MSH treatment, the melanin production in B16 melanoma cells was augmented as a validation for activation ofα-MSH signaling. The upregulated expression ofα-MSH signaling-related moleculesβ-catenin, c-Kit, and MITF was suppressed by resveratrol and/or STI571 treatment. Nuclear translocation of MITF, a hallmark ofα-MSH signaling activation, was inhibited by combined treatment of resveratrol and STI571. At effective concentration, resveratrol and/or STI571 inhibited cell viability andα-MSH-activated matrix metalloproteinase- (MMP-)9 expression and invasion capacity of B16 melanoma cells. In conclusion, resveratrol enhances STI571 effect on suppressing theα-MSH signaling, viability, and invasiveness in melanoma cells. It implicates that resveratrol may have potential to modulate the cancer stem cell characteristics of melanoma.


Author(s):  
Masayuki Ohara ◽  
Yuzo Kawashima ◽  
Shunichi Kitajima ◽  
Chizuru Mitsuoka ◽  
Hiromitsu Watanabe

Life Sciences ◽  
2003 ◽  
Vol 72 (12) ◽  
pp. 1377-1387 ◽  
Author(s):  
Noriko Yoshikawa ◽  
Kazuki Nakamura ◽  
Yu Yamaguchi ◽  
Satomi Kagota ◽  
Kazumasa Shinozuka ◽  
...  

Nutrients ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 2697
Author(s):  
Thouria Bourhim ◽  
Myra O. Villareal ◽  
Chemseddoha Gadhi ◽  
Hiroko Isoda

The beneficial effect on health of argan oil is recognized worldwide. We have previously reported that the cake that remains after argan oil extraction (argan press-cake or APC) inhibits melanogenesis in B16 melanoma cells in a time-dependent manner without cytotoxicity. In this study, the global gene expression profile of B16 melanoma cells treated with APC extract was determined in order to gain an understanding of the possible mechanisms of action of APC. The results suggest that APC extract inhibits melanin biosynthesis by down-regulating microphthalmia-associated transcription factor (Mitf) and its downstream signaling pathway through JNK signaling activation, and the inhibition of Wnt/β-catenin and cAMP/PKA signaling pathways. APC extract also prevented the transport of melanosomes by down-regulating Rab27a expression. These results suggest that APC may be an important natural skin whitening product and pharmacological agent used for clinical treatment of pigmentary disorders.


2021 ◽  
Vol 16 (5) ◽  
pp. 1934578X2110192
Author(s):  
Yuki Ohno ◽  
Shiori Kondo ◽  
Kiho Tajima ◽  
Toshiyuki Shibata ◽  
Tomohiro Itoh

Phlorotannins isolated from brown algae, such as Eisena bicyclis, have positive physiological effects, including anti-cancer, anti-inflammatory, and anti-Alzheimer’s disease. Although phlorotannins have been shown to inhibit tyrosinase, an enzyme essential for melanogenesis, their effect on melanogenesis remains unexplored. Thus, we isolated phlorotannins from E. bicyclis and examined their effects on α-melanocyte-stimulating hormone (α-MSH)-induced melanogenesis in murine B16 melanoma cells. Both fucofuroeckol-A (FF-A) and phlorofucofuroeckol-A (PFF-A) suppressed α-MSH-induced melanogenesis. Neither inhibited human tyrosinase (TYR) activity, but both inhibited tyrosinase-related protein-2 activity. FF-A downregulated the expression of microphthalmia-associated transcription factor and TYR, which subsequently suppressed melanin production. These results suggest that phlorotannins could be beneficial as melanin control drugs for hyperpigmentation disorders.


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