C-X-C chemokine receptor type 4 mRNA (CXCR4 mRNA)

CXCR4 mRNA is the messenger RNA transcript that encodes the C-X-C chemokine receptor type 4 (CXCR4), a G protein-coupled receptor (GPCR) critical for hematopoietic stem cell homing, immune cell trafficking, and embryonic development. In various malignancies, including breast, lung, and colorectal cancers, CXCR4 mRNA is frequently overexpressed, serving as a key driver of tumor cell migration, invasion, and organ-specific metastasis toward CXCL12-rich environments. Beyond oncology, the mRNA is essential for the production of the CXCR4 protein, which acts as a major co-receptor for X4-tropic HIV-1 entry into T-cells. Therapeutic strategies specifically targeting CXCR4 mRNA, such as small interfering RNAs (siRNAs) and antisense oligonucleotides (ASOs), are being explored to downregulate receptor expression at the pre-translational level. This approach aims to inhibit the CXCR4/CXCL12 signaling axis more comprehensively than protein-level antagonists by preventing the synthesis of the receptor entirely, thereby reducing tumor aggressiveness and blocking viral entry. Additionally, CXCR4 mRNA levels serve as a significant prognostic biomarker, with high expression often correlating with poor survival and increased metastatic potential in clinical settings.

Other names

Fusin mRNACD184 mRNALESTR mRNAC-X-C motif chemokine receptor 4 mRNAChemokine (C-X-C motif) receptor 4 mRNA

RNA interference (RNAi) and antisense inhibition leading to mRNA degradation or translational repression, thereby reducing the expression of the CXCR4 protein.