RIG-I promotes cell proliferation in esophageal squamous cell carcinoma by facilitating p21 degradation

© 2023. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature..

Retinoic acid-inducible gene-I (RIG-I) is considered a key sensor for host recognition of RNA virus infections. Recent studies have shown that RIG-I also regulates carcinogenesis. However, the role of RIG-I in esophageal squamous cell carcinoma (ESCC) remains unclear. We investigated the RIG-I expression in ESCC cells using a public database, immunohistochemistry, and Western blotting. We evaluated the proliferative activity of ESCC cells using CCK-8, colony formation, and EdU staining assays. Further, we determined the ESCC cell-cycle changes using flow cytometry and the ubiquitination of p21 in the cells using cycloheximide chase and ubiquitination assays. Finally, we verified the in vivo effects of RIG-I on ESCC cells by constructing xenograft models. RIG-I was highly expressed in ESCC cells and significantly promoted their proliferation and cell-cycle. Moreover, RIG-I knockdown inhibited xenograft growth in nude mice. Furthermore, RIG-I accelerated the cell-cycle by promoting the ubiquitination and degradation of p21. Overall, this study revealed that the increased expression of RIG-I due to ESCC accelerated the progression of esophageal cancer by promoting the ubiquitination and degradation of p21, which is related to the prognosis of ESCC. Thus, RIG-I may be a novel therapeutic target for ESCC treatment.

Medienart:

E-Artikel

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

Zur Gesamtaufnahme - volume:40

Enthalten in:

Medical oncology (Northwood, London, England) - 40(2023), 10 vom: 01. Sept., Seite 288

Sprache:

Englisch

Beteiligte Personen:

Wang, Meng [VerfasserIn]
Zhang, Yangyang [VerfasserIn]
Gao, Liping [VerfasserIn]
Zhang, Hailin [VerfasserIn]
Yang, Zhenwei [VerfasserIn]
Liu, Jialong [VerfasserIn]
Shan, Wenqing [VerfasserIn]
Zeng, Lingxiu [VerfasserIn]
Zhang, Ranran [VerfasserIn]
Li, Yong [VerfasserIn]
Liu, Jing [VerfasserIn]

Links:

Volltext

Themen:

EC 3.6.1.-
Esophageal cancer
Journal Article
P21
RIG-I
RIGI protein, human
Ubiquitination

Anmerkungen:

Date Completed 02.10.2023

Date Revised 02.10.2023

published: Electronic

Citation Status MEDLINE

doi:

10.1007/s12032-023-02157-9

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM361540884