CSN5 Promotes Carcinogenesis of Thyroid Carcinoma Cells Through ANGPTL2.

Abstract:

:COP9 signalosome subunit 5 (CSN5) plays a key role in carcinogenesis of multiple cancers and contributes to the stabilization of target proteins through deubiquitylation. However, the underlying role of CSN5 in thyroid carcinoma has not been reported. In this research, our data showed that CSN5 was overexpressed in thyroid carcinoma tissues compared with paracancerous tissues. Furthermore, a series of gain/loss functional assays were performed to demonstrate the role of CSN5 in facilitating thyroid carcinoma cell proliferation and metastasis. Additionally, we found there was a positive correlation between CSN5 and angiopoietin-like protein 2 (ANGPTL2) protein levels in thyroid carcinoma tissues and that CSN5 promoted thyroid carcinoma cell proliferation and metastasis through ANGPTL2. We also identified the underlying mechanism that CSN5 elevated ANGPTL2 protein level by directly binding it, decreasing its ubiquitination and degradation. Overall, our results highlight the significance of CSN5 in promoting thyroid carcinoma carcinogenesis and implicate CSN5 as a promising candidate for thyroid carcinoma treatment.

journal_name

Endocrinology

journal_title

Endocrinology

authors

Xie P,Wang H,Fang J,Du D,Tian Z,Zhen J,Liu Y,Ding Y,Fu B,Liu F,Huang D,Yu J

doi

10.1210/endocr/bqaa206

subject

Has Abstract

pub_date

2021-03-01 00:00:00

issue

3

eissn

0013-7227

issn

1945-7170

pii

6122687

journal_volume

162

pub_type

杂志文章