Abstract
Phospholipase A and acyltransferase 4 (PLAAT4) is a member of the HREV107 tumor suppressor gene family. The expression of PLAAT4 has been shown to induce cell death; however, the underlying mechanism remains unknown. Here, we found that RPLP0, a ribosomal protein, can interact with PLAAT4, as determined by yeast two-hybrid screening, coimmunoprecipitation, and colocalization. The level of RPLP0 was suppressed in HtTA cervical cancer cells expressing PLAAT4. In PLAAT4-expressing or RPLP0-silenced cells, decreased cell viability and cell proliferation combined with increased cell death were observed. Furthermore, the levels of cell cycle-associated proteins and anti-apoptotic proteins decreased in PLAAT4-expressing or RPLP0-silenced cells. Similar patterns of cell viability and expression levels of cell-cycle-associated proteins and apoptosis-related proteins were observed in PLAAT4-expressing and RPLP0-knockdown cells, indicating that RPLP0 deficiency might be involved in PLAAT4-mediated growth inhibition and cellular apoptosis.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
