Effectiveness and immune responses of focused ultrasound ablation for cervical intraepithelial neoplasia
Hongmin Zeng, Maoyu Liu, Linlin Xiao, Xiaoyuan Zhang, Qing Feng, Shufang Chang
Abstract
PURPOSE: To investigate the safety, efficacy, and the immune responses of focused ultrasound in cervical intraepithelial neoplasia (CIN). METHODS: Patients with biopsy-confirmed CIN were recruited for focused ultrasound treatment and asked to return during 3-6 and 6-12 months post-treatment to receive cervical cytology, high-risk human papilloma virus (HPV) detection, and colposcopy. The effective rate was evaluated within 3-6 months, whereas the recurrence rate was evaluated within 6-12 months. Cervicovaginal lavage and cervical tissue were sampled before and 3-6 months after treatment. The expression of interferon gamma (IFN-γ), endoplasmic reticulum aminopeptidase 1 (ERAP1), human leucocyte antigen I (HLA-I), cluster of differentiation 4 (CD4), and cluster of differentiation 8 (CD8) in the cervical tissue were observed by immunohistochemistry. Immunoglobulin A (IgA) and interleukin 10 (IL-10) levels in the cervicovaginal lavage were detected by enzyme-linked immunosorbent assay. Comparisons were made in immune analyte levels before and after treatment. RESULTS: > 0.05). CONCLUSIONS: Focused ultrasound is an effective and safe therapy for treating CIN, which could improve the local immune milieu of the cervix to some extent.