Back

miR-631 suppresses oncogene RAB11A in oral squamous cell carcinoma

Pulakkat Muralidharan, H.; Mishra, R.; Gopal, C.; Kumar, A.

2025-07-14 cancer biology
10.1101/2025.04.26.650806 bioRxiv
Show abstract

Despite technological advancements, the five-year survival rate for oral squamous cell carcinoma (OSCC) remains dismally low. To develop more effective therapies, we intended to identify the potential therapeutic tumor suppressor microRNAs in OSCC. Previously, a microRNA microarray analysis of 5-Azacytidine treated SCC131 cells had identified 50 upregulated miRs. Of these, miR-631 that had no previously known roles in OSCC was selected for further analysis in the present study. We show that miR-631 binds directly to the oncogene RAB11A and reduces its transcript and protein levels. The upregulation of miR-631 occurs due to its gene promoter demethylation after 5-Azacytidine treatment. We demonstrate that miR-631 reduces proliferation and anchorage-independent growth of OSCC cells in soft agar and promotes apoptosis, in part, via targeting RAB11A. An inverse relationship between miR-631 and RAB11A levels observed across multiple cancer cell lines and in 58.33% of OSCC patient samples highlights the biological significance of their interaction. Further, miR-631 and RAB11A interaction reduces the Wnt signaling in OSCC. Additionally, the nude mice OSCC xenograft study proves the tumor suppressive nature of miR-631. Based on our results, we propose that miR-631 holds promise as a potential therapeutic agent for treating OSCC.

Matching journals

The top 8 journals account for 50% of the predicted probability mass.

50% of probability mass above

"Similar papers" are the closest papers from that journal in the model's embedding space. They show what the match is built on, but the ranking comes mostly from a classifier over the whole training set, not from these examples alone.