Abstract B41: EMC1 influences cellular calcium homeostasis and promotes breast cancer cell migration and proliferation

2013 ◽  
Author(s):  
Roberto Augusto Silva Molina ◽  
Rodrigo Ribeiro Silva ◽  
Roberta Ribeiro Costa ◽  
Silmara Reis Banzi ◽  
Enilza Maria Espreafico
Keyword(s):  
Breast Cancer ◽  
Cell Migration ◽  
Cancer Cell ◽  
Breast Cancer Cell ◽  
Calcium Homeostasis ◽  
Cancer Cell Migration ◽  
Cellular Calcium ◽  
Breast Cancer Cell Migration ◽  
Cell Migration And Proliferation

scholarly journals Dysregulation of POPDC1 promotes breast cancer cell migration and proliferation

2017 ◽  
Vol 37 (6) ◽  
Author(s):  
Johanna Ndamwena Amunjela ◽  
Steven John Tucker
Keyword(s):  
Breast Cancer ◽  
Cell Migration ◽  
Cancer Cells ◽  
Cancer Cell ◽  
Breast Cancer Cell ◽  
Breast Cancer Cells ◽  
Cancer Cell Migration ◽  
Breast Tumorigenesis ◽  
Breast Cancer Cell Migration ◽  
Cell Migration And Proliferation

Breast cancer subtypes such as triple-negative that lack the expression of oestrogen receptor (ER), progesterone receptor (PR) and human epidermal growth factor 2 receptor (HER2), remain poorly clinically managed due to a lack of therapeutic targets. This necessitates identification and validation of novel targets. Suppression of Popeye domain-containing protein 1 (POPDC1) is known to promote tumorigenesis and correlate to poor clinical outcomes in various cancers, and also promotes cardiac and skeletal muscle pathologies. It remains to be established whether POPDC1 is dysregulated in breast cancer, and whether overcoming the dysregulation of POPDC1 could present a potential therapeutic strategy to inhibit breast tumorigenesis. We assessed the potential of POPDC1 as a novel target for inhibiting breast cancer cell migration and proliferation. POPDC1 was significantly suppressed with reduced cell membrane localization in breast cancer cells. Furthermore, functional suppression of POPDC1 promoted breast cancer cell migration and proliferation, which were inhibited by POPDC1 overexpression. Finally, cAMP interacts with POPDC1 and up-regulates its expression in breast cancer cells. These findings suggest that POPDC1 plays a role in breast tumorigenesis and represents a potential therapeutic target or biomarker in breast cancer medicine.

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