Barium inhibits arsenic-mediated apoptotic cell death in human squamous cell carcinoma cells

2012 ◽  
Vol 86 (6) ◽  
pp. 961-973 ◽  
Author(s):  
Ichiro Yajima ◽  
Noriyuki Uemura ◽  
Saika Nizam ◽  
Md. Khalequzzaman ◽  
Nguyen D. Thang ◽  
...  
Keyword(s):  
Squamous Cell Carcinoma ◽  
Cell Death ◽  
Cell Carcinoma ◽  
Squamous Cell ◽  
Apoptotic Cell ◽  
Apoptotic Cell Death ◽  
Carcinoma Cells ◽  
Human Squamous Cell Carcinoma

scholarly journals XIAP inhibitor embelin induces autophagic and apoptotic cell death in human oral squamous cell carcinoma cells

2017 ◽  
Vol 32 (11) ◽  
pp. 2371-2378 ◽  
Author(s):  
You-Jin Lee ◽  
Bong-Soo Park ◽  
Hae-Ryoun Park ◽  
Su-Bin Yu ◽  
Hae-Mi Kang ◽  
...  
Keyword(s):  
Squamous Cell Carcinoma ◽  
Cell Death ◽  
Oral Squamous Cell Carcinoma ◽  
Cell Carcinoma ◽  
Squamous Cell ◽  
Apoptotic Cell ◽  
Apoptotic Cell Death ◽  
Carcinoma Cells

scholarly journals Methanol Extract of Holarrhena antidysenterica Inhibits the Growth of Human Oral Squamous Cell Carcinoma Cells and Osteoclastogenesis of Bone Marrow Macrophages

2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
Heein Yoon ◽  
Junhee Park ◽  
Kwang-Kyun Park ◽  
Jin Kim ◽  
N. Champika Bandara ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Squamous Cell Carcinoma ◽  
Cell Death ◽  
Oral Squamous Cell Carcinoma ◽  
Cell Carcinoma ◽  
Squamous Cell ◽  
Methanol Extract ◽  
Apoptotic Cell ◽  
Apoptotic Cell Death ◽  
Holarrhena Antidysenterica

Oral squamous cell carcinoma (OSCC) frequently invades mandibular bone, and outcomes for treatment with surgical resection are typically poor, ultimately resulting in death. Holarrhena antidysenterica L. (Apocynaceae), distributed throughout Sri Lanka and India, has been used as a folk remedy to treat various diseases. Treatment with methanol extract of H. antidysenterica bark (HABE) inhibited cell viability and BrdU incorporation and induced apoptotic cell death in Ca9-22 gingival and HSC-3 tongue SCC cells. Flow cytometric analysis indicated that HABE treatment preferentially induces apoptotic cell death via increasing the sub-G1 peak in Ca9-22 cells and cell cycle arrest at the G1 phase in HSC-3 cells. HABE treatment in the presence of zVAD-fmk, a pan-caspase inhibitor, rescued cell viabilities in both OSCC cell lines. The ratio of Bax to Bcl-2 increased with reductions in the Bcl-2 protein expression, and the activation of caspase 3 and subsequent cleavage of PARP was detected in HABE-treated Ca9-22 and HSC-3 cells. Furthermore, HABE treatment at noncytotoxic concentrations inhibited osteoclast formation in RANKL-stimulated bone marrow macrophages. Taken together, HABE possesses the inhibitory activity on the growth of OSCC cells and antiosteoclastogenic activity. Therefore, HABE may be a promising alternative and complementary agent for preventing and treating OSCC.

scholarly journals Dual Targeting of the p38 MAPK-HO-1 Axis and cIAP1/XIAP by Demethoxycurcumin Triggers Caspase-Mediated Apoptotic Cell Death in Oral Squamous Cell Carcinoma Cells

Cancers ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 703 ◽  
Author(s):  
Ming-Hsien Chien ◽  
Wei-En Yang ◽  
Yi-Chieh Yang ◽  
Chia-Chi Ku ◽  
Wei-Jiunn Lee ◽  
...  
Keyword(s):  
Squamous Cell Carcinoma ◽  
Cell Death ◽  
Oral Squamous Cell Carcinoma ◽  
Cell Carcinoma ◽  
P38 Mapk ◽  
Squamous Cell ◽  
Apoptotic Cell ◽  
Apoptotic Cell Death ◽  
Heme Oxygenase 1 ◽  
Caspase 8

Demethoxycurcumin (DMC) is a curcumin analogue with better stability and higher aqueous solubility than curcumin after oral ingestion and has the potential to treat diverse cancers, including oral squamous cell carcinoma (OSCC). The aim of this study was to investigate the anticancer effects and underlying mechanisms of DMC against OSCC. We found that DMC suppressed cell proliferation via simultaneously inducing G2/M-phase arrest and cell apoptosis. Mechanistic investigations found that the downregulation of cellular IAP 1 (cIAP1)/X-chromosome-linked IAP (XIAP) and upregulation of heme oxygenase-1 (HO-1) were critical for DMC-induced caspase-8/-9/-3 activation and apoptotic cell death. Moreover, p38 mitogen-activated protein kinase (MAPK) and c-Jun N-terminal kinase (JNK)1/2 were activated by DMC treatment in OSCC cells, and only the inhibition of p38 MAPK significantly abolished DMC-induced HO-1 expression and caspase-8/-9/-3 activation. The analyses of clinical datasets revealed that patients with head and neck cancers expressing high HO-1 and low cIAP1 had the most favorable prognoses. Furthermore, a combinatorial treatment of DMC with epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor, gefitinib, significantly enhanced the inhibitory effect of gefitinib on the proliferation of OSCC cells. Overall, the current study supported a role for DCM as part of a therapeutic approach for OSCC through suppressing IAPs and activating the p38-HO-1 axis.

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