scholarly journals Squamous cell carcinoma antigen suppresses radiation-induced cell death

2001 ◽  
Vol 84 (6) ◽  
pp. 851-858 ◽  
Author(s):  
A Murakami ◽  
Y Suminami ◽  
H Hirakawa ◽  
S Nawata ◽  
F Numa ◽  
...  
2010 ◽  
Vol 106 (2) ◽  
pp. 130-134 ◽  
Author(s):  
Remilio A. L. Schoop ◽  
Elizabeth M. E. Verdegaal ◽  
Robert J. Baatenburg de Jong ◽  
Mathieu H. M. Noteborn

2021 ◽  
Author(s):  
Songyan Wang ◽  
Cliff Luke ◽  
Stephen Pak ◽  
Victoria Shi ◽  
LiYun Chen ◽  
...  

Abstract The endogenous lysosomal cysteine protease inhibitor SERPINB3 (squamous cell carcinoma antigen 1, SCCA1) is elevated in patients with cervical cancer and other malignancies. High serum SERPINB3 is prognostic for recurrence and death following chemoradiation therapy (CRT). Cervical cancer cells genetically lacking SERPINB3 are more sensitive to ionizing radiation (IR), suggesting this protease inhibitor plays a role in therapeutic response. Here we demonstrate that SERPINB3-deficient cells have enhanced sensitivity to IR-induced cell death. Knock out of SERPINB3 sensitizes cells to a greater extent than cisplatin, the current standard of care. IR in SERPINB3 deficient cervical carcinoma cells induces cell death morphologically consistent with necrosis, with biochemical and cellular features of lysoptosis. Moreover, rescue with wild-type SERPINB3 or a reactive site loop mutant indicates that protease inhibitory activity is required to protect cervical tumor cells from radiation-induced death. These data suggest targeting of SERPINB3 and lysoptosis to treat radioresistant cervical cancers.


2021 ◽  
Vol 11 (10) ◽  
pp. 4559
Author(s):  
Jinyoung Park ◽  
Yoon-Seo Jang ◽  
Jeong-Hae Choi ◽  
Miheon Ryu ◽  
Gyoo-Cheon Kim ◽  
...  

Combination therapies for the treatment of oral squamous cell carcinoma have been studied extensively and represent a synergistic approach with better outcomes than monotherapy. In this study, a novel combination therapy was investigated using gold nanoparticles (GNP) conjugated to programmed cell death protein ligand 1 (PD-L1) antibodies and nonthermal plasma (NTP). The present study describes the effectiveness of NTP using PD-L1 antibody conjugated to GNP in PD-L1 expressing SCC-25 cells, an oral squamous cell carcinoma line. Immunocytochemistry revealed higher levels of PD-L1 expression and an increase in the selective uptake of PD-L1 antibody + GNP on SCC-25 cells compared to HaCaT cells. In addition, cell viability analyses confirmed higher levels of cell death of SCC-25 cells after treatment with PD-L1 antibody, GNP, and NTP compared to HaCaT cells. Among the experimental groups, the highest cell death was observed upon treatment with PD-L1 antibody + GNP + NTP. Following the Western blot analysis and immunofluorescence staining, the expression of apoptosis-related proteins was found to increase after treatment with PD-L1 antibody + GNP + NTP among the other experimental groups. In conclusion, the treatment of SCC-25 cells with PD-L1 antibody + GNP + NTP significantly increased the number of dead cells compared to other experimental groups. The results of this in vitro study confirmed the therapeutic effects of PD-L1 antibody + GNP + NTP treatment on oral squamous cell carcinoma.


2020 ◽  
Author(s):  
Mabel Catalán ◽  
Catalina Rodríguez ◽  
Ivonne Olmedo ◽  
Javiera Carrasco-Rojas ◽  
Diego Rojas ◽  
...  

2019 ◽  
Vol 1866 (4) ◽  
pp. 623-637 ◽  
Author(s):  
Amanda Tomie Ouchida ◽  
Valéria Tudella Uyemura ◽  
André Lima Queiroz ◽  
Verônica Soares Brauer ◽  
Marinaldo Pacífico Cavalcanti-Neto ◽  
...  

Oncotarget ◽  
2016 ◽  
Vol 7 (34) ◽  
pp. 55057-55068 ◽  
Author(s):  
Talita Antunes Guimarães ◽  
Lucyana Conceição Farias ◽  
Eliane Sobrinho Santos ◽  
Carlos Alberto de Carvalho Fraga ◽  
Lissur Azevedo Orsini ◽  
...  

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