scholarly journals 256P Recombination signal binding protein for immunoglobulin- kappa-J region (RBPJ) and Mastermind-like 3 (MAML3) are potential therapeutic targets for pancreatic cancer

2016 ◽  
Vol 27 ◽  
pp. ix80
Author(s):  
A. Yamasaki ◽  
H. Onishi ◽  
M. Nakamura
2022 ◽  
Vol 12 ◽  
Author(s):  
Chunhong Di ◽  
Guoxia Zheng ◽  
Yunheng Zhang ◽  
Enyu Tong ◽  
Yanli Ren ◽  
...  

The recombination signal binding protein for immunoglobulin kappa J region (RBPJ) has a dual effect on Kaposi’s sarcoma-associated herpesvirus (KSHV) replication. RBPJ interaction with replication and transcription activator (RTA) is essential for lytic replication, while the interaction with latency-associated nuclear antigen (LANA) facilitates latent infection. Furthermore, our previous study found that LANA decreased RBPJ through upregulating miRNA let-7a. However, it is unclear whether RTA regulates the expression of RBPJ. Here, we show RTA increases RBPJ by decreasing let-7a. During KSHV replication, the RBPJ expression level was positively correlated with the RTA expression level and negatively correlated with the LANA expression level. The let-7a expression level was inverse to RBPJ. Knockdown of RBPJ inhibited the self-activation of RTA promoter and LANA promoter and weakened LANA’s inhibition of RTA promoter. Collectively, these findings indicate that RTA and LANA compete for let-7a/RBPJ signal to control the KSHV replication. Regulating the RBPJ expression level by RTA and LANA plays an important role during KSHV replication.


1992 ◽  
Vol 267 (6) ◽  
pp. 4016-4022
Author(s):  
M Kawaichi ◽  
C Oka ◽  
S Shibayama ◽  
A.E. Koromilas ◽  
N Matsunami ◽  
...  

Cancers ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1781
Author(s):  
Gustavo A. Arias-Pinilla ◽  
Helmout Modjtahedi

Pancreatic cancer remains as one of the most aggressive cancer types. In the absence of reliable biomarkers for its early detection and more effective therapeutic interventions, pancreatic cancer is projected to become the second leading cause of cancer death in the Western world in the next decade. Therefore, it is essential to discover novel therapeutic targets and to develop more effective and pancreatic cancer-specific therapeutic agents. To date, 45 monoclonal antibodies (mAbs) have been approved for the treatment of patients with a wide range of cancers; however, none has yet been approved for pancreatic cancer. In this comprehensive review, we discuss the FDA approved anticancer mAb-based drugs, the results of preclinical studies and clinical trials with mAbs in pancreatic cancer and the factors contributing to the poor response to antibody therapy (e.g. tumour heterogeneity, desmoplastic stroma). MAb technology is an excellent tool for studying the complex biology of pancreatic cancer, to discover novel therapeutic targets and to develop various forms of antibody-based therapeutic agents and companion diagnostic tests for the selection of patients who are more likely to benefit from such therapy. These should result in the approval and routine use of antibody-based agents for the treatment of pancreatic cancer patients in the future.


Author(s):  
Jimmy A. Guo ◽  
Daniel Zhao ◽  
Scott P. Ginebaugh ◽  
Steven Wang ◽  
Ananya D. Jambhale ◽  
...  

2020 ◽  
Vol 11 ◽  
Author(s):  
María García-Costela ◽  
Julia Escudero-Feliú ◽  
Jose D. Puentes-Pardo ◽  
Sara Moreno San Juán ◽  
Sonia Morales-Santana ◽  
...  

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