Additionally, a differential expression of the cytokine genes CCL2, CCL20, TGFB1, and TGFB2; the transcription factor gene IRF4; and the receptor genes CCR2, IL10RB, TGFBR1, and TGFBR2 was identified in tumor tissue and vestibular nerve tissue. This evidence concerns the gene CCL2 and neoplasm.