Epigenomics · 2025
Combined replacement of lnc-MEG3 and miR-155 elicit tumor suppression in multiple myeloma.
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El-Khazragy Nashwa, Abdelrahman Sara Elsayed, Darwish Amal, Hemida Eman H A
Аннотация
AIMS: To investigate the biological impact of simultaneous overexpression of lncRNA MEG3 and miR-155, termed a "double hit," on multiple myeloma (MM) cells compared to individual biomarker substitution.
MATERIALS AND METHODS: Human MM cells were transfected with MEG3-overexpressed plasmids and miR-155 mimics. Cell cytotoxicity, apoptosis, and gene expression were evaluated in transfected cells and clinical samples.
RESULTS: MEG3 and miR-155 were significantly downregulated in MM patients, with lower expression levels correlating with advanced disease stages and poorer survival. Dual overexpression induced potent cytotoxic effects in MM cells.
CONCLUSION: MEG3 and miR-155 are potential tumor suppressors in MM. Simultaneous overexpression of both biomarkers could represent a novel therapeutic strategy, and their levels could serve as diagnostic and prognostic markers.
MATERIALS AND METHODS: Human MM cells were transfected with MEG3-overexpressed plasmids and miR-155 mimics. Cell cytotoxicity, apoptosis, and gene expression were evaluated in transfected cells and clinical samples.
RESULTS: MEG3 and miR-155 were significantly downregulated in MM patients, with lower expression levels correlating with advanced disease stages and poorer survival. Dual overexpression induced potent cytotoxic effects in MM cells.
CONCLUSION: MEG3 and miR-155 are potential tumor suppressors in MM. Simultaneous overexpression of both biomarkers could represent a novel therapeutic strategy, and their levels could serve as diagnostic and prognostic markers.