Decreased TSPAN14 Expression Contributes to NSCLC Progression

Tspan14 is a transmembrane protein of the tetraspanin (Tspan) protein family. Different members of the Tspan family can promote or suppress tumor progression. The exact role of Tspan14 in tumor cells is unknown. Earlier, mutational inactivation of the TSPAN14 gene has been proposed to coincide with...

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Published inLife (Basel, Switzerland) Vol. 12; no. 9; p. 1291
Main Authors Jovanović, Mirna, Stanković, Tijana, Stojković Burić, Sonja, Banković, Jasna, Dinić, Jelena, Ljujić, Mila, Pešić, Milica, Dragoj, Miodrag
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 23.08.2022
MDPI
Subjects
Antibodies
Cancer
Gelatin
Gelatinase A
Gelatinase B
Gene expression
Inactivation
Invasiveness
Lung cancer
Matrix metalloproteinases
Metastases
Metastasis
Non-small cell lung carcinoma
NSCLC
Patients
Protein expression
Proteins
Survival
Thoracic surgery
Tspan14
Tumor cells
Tumors
Serbia
United States > US
Germany
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Summary:Tspan14 is a transmembrane protein of the tetraspanin (Tspan) protein family. Different members of the Tspan family can promote or suppress tumor progression. The exact role of Tspan14 in tumor cells is unknown. Earlier, mutational inactivation of the TSPAN14 gene has been proposed to coincide with a low survival rate in NSCLC patients. This study aimed to investigate the correlation of TSPAN14 lack of function with clinicopathological features of NSCLC patients, and to elucidate the role TSPAN14 might have in NSCLC progression. TSPAN14 expression was lower in tumor cells than non-tumor cells in NSCLC patients’ samples. The decreased gene expression was correlated with a low survival rate of patients and was more frequent in patients with aggressive, invasive tumor types. Additionally, the role of decreased TSPAN14 expression in the metastatic potential of cancer cells was confirmed in NSCLC cell lines. The highly invasive NSCLC cell line (NCI-H661) had the lowest TSPAN14 gene and protein expression, whereas the NSCLC cell line with the highest TSPAN14 expression (NCI-H460) had no significant metastatic potential. Finally, silencing of TSPAN14 in these non-metastatic cancer cells caused an increased expression of matrix-degrading enzymes MMP-2 and MMP-9, followed by an elevated capacity of cancer cells to degrade gelatin. The results of this study propose TSPAN14 expression as an indicator of NSCLC metastatic potential and progression.
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ISSN:2075-1729
2075-1729
DOI:10.3390/life12091291