Abstract 4772: A novel agonist antibody to human death receptor 4, AY4, induces apoptotic cell death in head and neck cancer through ROS generation:in vitroandin vivo

Author(s):  
Chul-Ho Kim ◽  
Bok-Soon Lee ◽  
Sung Un Kang ◽  
Hye Sook Hwang ◽  
Eun-Sil Sung ◽  
...  
Head & Neck ◽  
2005 ◽  
Vol 27 (9) ◽  
pp. 794-800 ◽  
Author(s):  
Douglas K. Frank ◽  
Bozena Szymkowiak ◽  
Olgica Josifovska-Chopra ◽  
Torahiko Nakashima ◽  
Kathleen W. Kinnally

2009 ◽  
Vol 8 (8) ◽  
pp. 2276-2285 ◽  
Author(s):  
Eun-Sil Sung ◽  
Kyung-Jin Park ◽  
Seung-Hyun Lee ◽  
Yoon-Seon Jang ◽  
Sang-Koo Park ◽  
...  

2017 ◽  
Vol 17 (4) ◽  
pp. 608-614 ◽  
Author(s):  
Sahar Yaghmaei ◽  
Parichehr Ghalayani ◽  
Siamak Salami ◽  
Farahnaz Nourmohammadian ◽  
Soheila Koohestanimobarhan ◽  
...  

2015 ◽  
Vol 2015 ◽  
pp. 1-14 ◽  
Author(s):  
Manuela Schwegler ◽  
Anna M. Wirsing ◽  
Hannah M. Schenker ◽  
Laura Ott ◽  
Johannes M. Ries ◽  
...  

Background. In this study, we investigated the prognostic role of homotypic tumor cell cannibalism in different cancer types.Methods. The phenomenon of one cell being internalized into another, which we refer to as “cell-in-cell event,” was assessed in 416 cases from five head and neck cancer cohorts, as well as one anal and one rectal cancer cohort. The samples were processed into tissue microarrays and immunohistochemically stained for E-cadherin and cleaved caspase-3 to visualize cell membranes and apoptotic cell death.Results. Cell-in-cell events were found in all of the cohorts. The frequency ranged from 0.7 to 17.3 cell-in-cell events per mm2. Hardly any apoptotic cells were found within the cell-in-cell structures, although apoptotic cell rates were about 1.6 to two times as high as cell-in-cell rates of the same tissue sample. High numbers of cell-in-cell events showed adverse effects on patients’ survival in the head and neck and in the rectal cancer cohorts. In multivariate analysis, high frequency was an adverse prognostic factor for overall survival in patients with head and neck cancer (p=0.008).Conclusion. Cell-in-cell events were found to predict patient outcomes in various types of cancer better than apoptosis and proliferation and might therefore be used to guide treatment strategies.


2017 ◽  
Vol 12 (2) ◽  
pp. 25 ◽  
Author(s):  
Ni Kou ◽  
Hyejoung Cho ◽  
Hye-Eun Kim ◽  
Qiaochu Sun ◽  
Kyuhyeon Ahn ◽  
...  

<p class="MS">The apoptosis resistance restricts the efficacy of traditional therapies of head and neck squamous cell carcinoma (HNSCC). To overcome this problem, <em>Atractylodes macrocephala</em>, a traditional Korean and Chinese herbal medicine, has been used in clinical practice. In the present study, the anticancer effect of <em>A. macrocephala</em> extract was investigated and its underlying mechanisms using head and neck cancer KB cell line. The extract-induced cytotoxicity was mediated by autophagic cell death as well as apoptosis in HNSCC cells though extrinsic apoptotic pathway and the Akt/mTOR autophagic pathway. This study suggests that <em>A. macrocephala</em> extracts can be a potential drug to overcome side effects and susceptibility for head and neck carcinoma by double induction of apoptosis and autophagy.</p><p class="MS"><strong>Video Clip of Methodology</strong>: 6 min 27 sec  <a href="https://www.youtube.com/v/iRpGT4zpfs4">Full Screen</a>    <a href="https://www.youtube.com/watch?v=iRpGT4zpfs4">If Failed</a></p>


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