Ma W, Liao Y, Gao Z, Zhu W, Liu J, She W. Overexpression of LIMA1 Indicates Poor Prognosis and Promotes Epithelial-Mesenchymal Transition in Head and Neck Squamous Cell Carcinoma.
CLINICAL MEDICINE INSIGHTS: ONCOLOGY 2022;
16:11795549221109493. [PMID:
35837368 PMCID:
PMC9274436 DOI:
10.1177/11795549221109493]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 05/26/2022] [Indexed: 11/17/2022] Open
Abstract
Background:
LIMA1 encodes LIM domain and actin binding 1, a
cytoskeleton-associated protein whose loss has been linked to migration and
invasion behavior of cancer cells. However, the roles of LIMA1 underlying
the malignant behavior of tumors in head and neck squamous cell carcinoma
(HNSC) are not fully understood.
Methods:
We conducted a multi-omics study on the role of LIMA1 in HNSC based on The
Cancer Genome Atlas data. Subsequent in vitro experiments were performed to
validate the results of bioinformatic analysis. We first identified the
correlation between LIMA1 and tumor cell functional states
according to single-cell sequencing data in HNSC. The potential downstream
effects of LIMA1 were explored for gene ontology and Kyoto Encyclopedia of
Genes and Genomes pathways through functional enrichment analysis of the
gene sets that correlated with LIMA1 in HNSC. The
prognostic role of LIMA1 was assessed using the log rank test to compare
difference in survival between LIMA1High and LIMA1Low
patients. Univariate Cox regression and multivariate Cox regression were
further carried out to identify the prognostic value of LIMA1 in HNSC.
Results:
LIMA1 was identified as a prognostic biomarker and is associated with
epithelial-mesenchymal transition (EMT) progress in HNSC. In vitro silencing
of LIMA1 suppressed EMT and related pathways in HNSC.
Conclusions:
LIMA1 promotes EMT and further leads to tumor invasion and metastasis.
Increased expression of LIMA1 indicates poor survival,
identifying it as a prognostic biomarker in HNSC.
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