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author:

Li, Xiaoqin (Li, Xiaoqin.) [1] | Wu, Yun (Wu, Yun.) [2] | Xie, Baosong (Xie, Baosong.) [3] | Xu, Mingxiao (Xu, Mingxiao.) [4] | Xie, Tianjian (Xie, Tianjian.) [5] | Yue, Wenxiang (Yue, Wenxiang.) [6] | Lin, Ming (Lin, Ming.) [7] | Lin, Ying (Lin, Ying.) [8] | Chen, Yusheng (Chen, Yusheng.) [9]

Indexed by:

SCIE

Abstract:

Brain metastasis (BM) is a significant factor contributing to the poor prognosis of patients with non-small cell lung cancer (NSCLC). Secreted phosphoprotein 1 (SPP1) is implicated in the progression and metastasis of several cancers. The role of SPP1 in NSCLC remains unclear, especially in NSCLC BM. This study aimed to identify genes associated with NSCLC BM and to investigate the involvement of SPP1 in NSCLC BM. Integrated genomic analysis was utilized to identify candidate genes in NSCLC. The expression levels of SPP1 were evaluated in NSCLC tissues and cell lines. In vitro and in vivo experiments were conducted to assess the effect of SPP1 on NSCLC cell behavior and BM. The potential mechanisms of SPP1 were demonstrated by CO-IP and liquid chromatography-mass spectrometry (LC-MS). The underlying mechanism involving the PI3K/AKT/mTOR pathway was explored. The results showed that SPP1 expression was upregulated in NSCLC tissues and cell lines. Depletion of SPP1 using shRNA inhibited cell proliferation, migration, and invasion in vitro and suppressed BM in vivo. Mechanistically, SPP1 facilitates the ubiquitination of P85 alpha by interacting with the ubiquitin ligase RNF114, thus playing a role in regulating NSCLC BM through the PI3K/AKT/mTOR signaling pathway. Moreover, immunohistochemistry staining confirmed higher expression of SPP1 in NSCLC tissues with BM compared to those without BM. In summary, elevated SPP1 expression was associated with poor clinical outcomes in NSCLC patients. This study highlights the role of SPP1 as a regulator of cell metastasis and suggests its potential as a novel therapeutic target for BM in NSCLC.

Keyword:

brain metastasis NSCLC P85 alpha PI3K/AKT/mTOR pathway RNF114 SPP1 ubiquitination

Community:

  • [ 1 ] [Li, Xiaoqin]Fujian Med Univ, Shengli Clin Med Coll, Fuzhou, Peoples R China
  • [ 2 ] [Wu, Yun]Fujian Med Univ, Shengli Clin Med Coll, Fuzhou, Peoples R China
  • [ 3 ] [Xie, Baosong]Fujian Med Univ, Shengli Clin Med Coll, Fuzhou, Peoples R China
  • [ 4 ] [Yue, Wenxiang]Fujian Med Univ, Shengli Clin Med Coll, Fuzhou, Peoples R China
  • [ 5 ] [Lin, Ming]Fujian Med Univ, Shengli Clin Med Coll, Fuzhou, Peoples R China
  • [ 6 ] [Lin, Ying]Fujian Med Univ, Shengli Clin Med Coll, Fuzhou, Peoples R China
  • [ 7 ] [Chen, Yusheng]Fujian Med Univ, Shengli Clin Med Coll, Fuzhou, Peoples R China
  • [ 8 ] [Li, Xiaoqin]Fujian Prov Hosp, Dept Resp Med & Crit Care Med, Fuzhou, Peoples R China
  • [ 9 ] [Xie, Baosong]Fujian Prov Hosp, Dept Resp Med & Crit Care Med, Fuzhou, Peoples R China
  • [ 10 ] [Yue, Wenxiang]Fujian Prov Hosp, Dept Resp Med & Crit Care Med, Fuzhou, Peoples R China
  • [ 11 ] [Lin, Ming]Fujian Prov Hosp, Dept Resp Med & Crit Care Med, Fuzhou, Peoples R China
  • [ 12 ] [Chen, Yusheng]Fujian Prov Hosp, Dept Resp Med & Crit Care Med, Fuzhou, Peoples R China
  • [ 13 ] [Li, Xiaoqin]Fuzhou Univ, Prov Hosp, Fuzhou, Peoples R China
  • [ 14 ] [Wu, Yun]Fuzhou Univ, Prov Hosp, Fuzhou, Peoples R China
  • [ 15 ] [Xie, Baosong]Fuzhou Univ, Prov Hosp, Fuzhou, Peoples R China
  • [ 16 ] [Yue, Wenxiang]Fuzhou Univ, Prov Hosp, Fuzhou, Peoples R China
  • [ 17 ] [Lin, Ming]Fuzhou Univ, Prov Hosp, Fuzhou, Peoples R China
  • [ 18 ] [Lin, Ying]Fuzhou Univ, Prov Hosp, Fuzhou, Peoples R China
  • [ 19 ] [Chen, Yusheng]Fuzhou Univ, Prov Hosp, Fuzhou, Peoples R China
  • [ 20 ] [Li, Xiaoqin]Fujian Prov Researching Lab Resp Dis, Fuzhou, Peoples R China
  • [ 21 ] [Xie, Baosong]Fujian Prov Researching Lab Resp Dis, Fuzhou, Peoples R China
  • [ 22 ] [Chen, Yusheng]Fujian Prov Researching Lab Resp Dis, Fuzhou, Peoples R China
  • [ 23 ] [Wu, Yun]Fuzhou Univ, Prov Hosp, Fujian Prov Ctr Geriatr, Fuzhou, Peoples R China
  • [ 24 ] [Xu, Mingxiao]Navy Mil Med Univ, Affiliated Hosp 1, Dept Infect Dis, Shanghai, Peoples R China
  • [ 25 ] [Xie, Tianjian]Xiapu Cty Hosp Fujian Prov, Ningde, Peoples R China
  • [ 26 ] [Lin, Ying]Fujian Prov Hosp, Dept Pathol, Fuzhou, Peoples R China

Reprint 's Address:

  • 谢宝松 林瀛

    [Xie, Baosong]Fujian Med Univ, Shengli Clin Med Coll, Fuzhou, Peoples R China;;[Lin, Ying]Fujian Med Univ, Shengli Clin Med Coll, Fuzhou, Peoples R China;;[Chen, Yusheng]Fujian Med Univ, Shengli Clin Med Coll, Fuzhou, Peoples R China;;[Xie, Baosong]Fujian Prov Hosp, Dept Resp Med & Crit Care Med, Fuzhou, Peoples R China;;[Chen, Yusheng]Fujian Prov Hosp, Dept Resp Med & Crit Care Med, Fuzhou, Peoples R China;;[Xie, Baosong]Fuzhou Univ, Prov Hosp, Fuzhou, Peoples R China;;[Lin, Ying]Fuzhou Univ, Prov Hosp, Fuzhou, Peoples R China;;[Chen, Yusheng]Fuzhou Univ, Prov Hosp, Fuzhou, Peoples R China;;[Xie, Baosong]Fujian Prov Researching Lab Resp Dis, Fuzhou, Peoples R China;;[Chen, Yusheng]Fujian Prov Researching Lab Resp Dis, Fuzhou, Peoples R China;;[Lin, Ying]Fujian Prov Hosp, Dept Pathol, Fuzhou, Peoples R China

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Source :

MOLECULAR CARCINOGENESIS

ISSN: 0899-1987

Year: 2025

Issue: 5

Volume: 64

Page: 829-841

3 . 0 0 0

JCR@2023

CAS Journal Grade:3

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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