FHL1 inhibits the growth of tongue squamous cell carcinoma cells via G1/S cell cycle arrest

Four and a half LIM protein 1 (FHL1) has been characterized as a tumor suppressor in various types of tumor. However, the biological function and underlying mechanism of FHL1 in tongue squamous cell carcinoma (TSCC) remain to be elucidated. The present study demonstrated that FHL1 inhibits anchorage‑dependent and ‑independent growth of TSCC cells in vitro and tumor growth in nude mice, as determined by cell proliferation and soft agar assays. Knockdown of FHL1 with FHL1 small interfering RNA (siRNA) promoted tumor growth in nude mice. Mechanistically, flow cytometric analysis showed that knockdown of FHL1 promoted G1/S cell cycle progression. Furthermore, expression of cell cycle‑associated regulators, cyclin D and cyclin E, were detected by western blotting and reverse transcription‑quantitative polymerase chain reaction. Cyclin D and cyclin E were markedly elevated at both the protein and mRNA level in the FHL1 siRNA‑transfected cells. These results suggested that FHL1 has a tumor suppressive role in TSCC and that FHL1 may be a useful target for TSCC gene therapy.

Medienart:

E-Artikel

Erscheinungsjahr:

2015

Erschienen:

2015

Enthalten in:

Zur Gesamtaufnahme - volume:12

Enthalten in:

Molecular medicine reports - 12(2015), 3 vom: 28. Sept., Seite 3958-3964

Sprache:

Englisch

Beteiligte Personen:

Ren, Wei [VerfasserIn]
Lian, Panfeng [VerfasserIn]
Cheng, Long [VerfasserIn]
Du, Peiyun [VerfasserIn]
Guan, Xin [VerfasserIn]
Wang, Hongyuan [VerfasserIn]
Ding, Lihua [VerfasserIn]
Gao, Zhenyang [VerfasserIn]
Huang, Xin [VerfasserIn]
Xiao, Fengjun [VerfasserIn]
Wang, Lisheng [VerfasserIn]
Bi, Xiaolin [VerfasserIn]
Ye, Qinong [VerfasserIn]
Wang, Enqun [VerfasserIn]

Links:

Volltext

Themen:

Cyclin D
Cyclin E
FHL1 protein, human
Intracellular Signaling Peptides and Proteins
Journal Article
LIM Domain Proteins
Muscle Proteins
RNA, Small Interfering
Research Support, Non-U.S. Gov't

Anmerkungen:

Date Completed 12.05.2016

Date Revised 31.05.2018

published: Print-Electronic

Citation Status MEDLINE

doi:

10.3892/mmr.2015.3844

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM249409879