Upregulation of CPNE7 in mesenchymal stromal cells promotes oral squamous cell carcinoma metastasis through the NF-κB pathway
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Le résumé fourni par la source
A remarkable shift in Mesenchymal stromal cells (MSCs) plays an important role in cancer metastasis, but the molecular mechanism is still unclear. CPNE7, a calcium-dependent phospholipid-binding protein, mediates signal transduction and metastasis in many tumours. Here, we demonstrated that MSCs derived from OSCC (OSCC-MSCs) promoted the metastasis of OSCC cells by transwell assay and animal models through epithelial to mesenchymal transition (EMT) (p < 0.05). RNA-sequencing, ELISA, neutralizing antibody and CXCR2 inhibitor assay confirmed that CXCL8 secreted by OSCC-MSCs was associated with the upregulated expression of CPNE7 by immunohistochemical and western blotting (p < 0.05). This is mechanistically linked to the activation of CPNE7 to NF-κB pathway-induced metastasis, including phosphorylated p65 and IκBa. CPNE7 silencing inhibited metastatic abilities and the expression of CXCL8, phosphorylated p65, IκBa, and p65 nuclear translocation by western blotting and immunofluorescence, while CPNE7 overexpression markedly promoted these events (p < 0.05). We also identified that Nucleolin could be bind CPNE7 and IκBa by co-immunoprecipitation. Together, our results suggest that upregulation of CPNE7 in MSCs interacted with surface receptor -Nucleolin and then combined with IκBa to promoted phosphorylated IκBa and p65 nuclear translocation to active NF-κB pathway, and then regulates CXCL8 secretion to promote the metastasis of OSCC cells. Therefore, CPNE7 in MSCs could be promising therapeutic targets in OSCC.
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Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Upregulation of CPNE7 in mesenchymal stromal cells promotes oral squamous cell carcinoma metastasis through the NF-κB pathway
- Date Crossref
- 14/10/2021
- Éditeur
- Springer Science and Business Media LLC
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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Shandong University Department of Stomatology pays non établi dans la noticeUniversité ou école supérieure
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Jinan Central Hospital pays non établi dans la noticeÉtablissement de santé
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Peking University Department of Oral and Maxillofacial Surgery pays non établi dans la noticeUniversité ou école supérieure
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Second Hospital of Shandong University pays non établi dans la noticeÉtablissement de santé
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Beijing Haidian Hospital pays non établi dans la noticeÉtablissement de santé
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Cheeloo College of Medicine Department of Human Microbiome pays non établi dans la noticeUniversité ou école supérieure
Department of Stomatology — Shandong University, Jinan Central Hospital et Department of Oral and Maxillofacial Surgery — Peking University, avec 3 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.