Abstract 3407
Background
Few studies have directly investigated the differential expression of miRNA between low-tobacco and high-tobacco exposed HNSCC. The purpose of this study is to screen the differentially expressed miRNA and to investigate the clinical significance and potential biological mechanisms in above two groups of HNSCC.
Methods
The HNSCC datasets were obtained from TCGA database. Meanwhile, we collected 22 HNSCC patients in our hospital. The differentially expressed miRNAs between low-tobacco and high-tobacco exposed HNSCC were identified based on log2FC > 1 and FDR < 0.05. KM survival analysis, Cox regression, chi-square test were used to evaluate the clinical significance of miRNA. The correlation between gene and clinical characteristic was analyzed by WGCNA. TargetScan, miRDB, DIANA databases were used to predict the target genes of miRNA. RT-qPCR was used to identify miRNA expression in HNSCC tissues. p < 0.05 was considered statistically significant.
Results
30 differentially expressed miRNAs were identified between low-tobacco and high-tobacco exposed HNSCC. The patients with high expression of miR-499a had lower overall survival than those with low expression of miR-499a in high-tobacco exposed HNSCC (p = 0.02). Multivariate Cox regression showed that high expression of miR-499a was an independent risk factor for prognosis of high-tobacco exposed HNSCC (HR = 3.26, p = 0.03). Chi-square test showed that miR-499a was related to N stage in high-tobacco exposed HNSCC (p < 0.01). The clinical significance of miR-499a was not found in low-tobacco exposed HNSCC. WGCNA identified genes associated with N stage in high-tobacco exposed HNSCC. The three databases predicted the target genes of miR-499a, which intersected the genes associated with N stage. ZNRF1, AEBP2, NUS1 were obtained. RT-qPCR showed that miR-499a was differentially expressed between low-tobacco and high-tobacco exposed HNSCC in our own patients.
Conclusions
30 differentially expressed miRNAs are identified between low-tobacco and high-tobacco exposed HNSCC. In high-tobacco exposed HNSCC, highly expressed miR-499a may promote lymph node metastasis by down-regulating one or more of ZNRF1, AEBP2, NUS1, resulting in shortened patient survival.
Clinical trial identification
Editorial acknowledgement
Legal entity responsible for the study
The authors.
Funding
Has not received any funding.
Disclosure
All authors have declared no conflicts of interest.
Resources from the same session
1802 - Evaluation of the anti-tumor efficacy and immune effects of N-809, a novel IL-15 superagonist/anti-PD-L1 bispecific agent
Presenter: Kristin Hicks
Session: Poster Display session 3
Resources:
Abstract
3190 - GI101, a novel triple-targeting bispecific CD80-IgG4-IL2variant fusion protein, elicits synergistic anti-tumor effects in preclinical models
Presenter: Jae Chan Park
Session: Poster Display session 3
Resources:
Abstract
4062 - Phase 1b, open-label, dose-escalation study of M9241 (NHS-IL12) plus avelumab in patients (pts) with advanced solid tumors
Presenter: Julius Strauss
Session: Poster Display session 3
Resources:
Abstract
5777 - THOR-707, a novel not-alpha IL-2, promotes all key immune system anti-tumoral actions of IL-2 without eliciting vascular leak syndrome (VLS)
Presenter: Marcos Milla
Session: Poster Display session 3
Resources:
Abstract
5047 - A phase I clinical trial of malignant pleural mesothelioma treated with locally delivered autologous anti-FAP-targeted CAR T-cells
Presenter: Alessandra Curioni
Session: Poster Display session 3
Resources:
Abstract
1679 - HPV16 E6-specific TCR-T armored with checkpoint blockade in the treatment of cervical cancer
Presenter: Paul Bryson
Session: Poster Display session 3
Resources:
Abstract
1133 - the Mutant Neoantigen Specific T Cell Is a Personalized Immunotherapy in Refractory Solid Tumor
Presenter: Qi Song
Session: Poster Display session 3
Resources:
Abstract
3338 - NY-ESO-1 and LAGE1A –an emerging target for cell therapies in solid tumours
Presenter: Ioanna Eleftheriadou
Session: Poster Display session 3
Resources:
Abstract
3089 - Targeting myeloid-derived suppressor cells and T cells: combination treatment with MTL-CEBPA and PD-1 antibody in a mouse syngeneic CT26 model
Presenter: Mikael Sodergren
Session: Poster Display session 3
Resources:
Abstract
5991 - Master Checkpoint Cbl-b Inhibition: Anti-tumor Efficacy in a Murine Colorectal Cancer Model Following siRNA-based Cell Therapy
Presenter: Kathrin Thell
Session: Poster Display session 3
Resources:
Abstract