LncRNA SNHG5はPI3K/AKT経路によって胃がんにおけるmiR-92a-3p/BTG2軸を通じた細胞増殖と移動を調節する

Qi-Qi Mao¹, Mei-Lin Zhang², Liang Zhong³

¹Department of Gastroenterology, Huashan Hospital, Fudan University, Shanghai 201907, China.

World journal of gastrointestinal oncology

|August 21, 2025

まとめ

長い非コーディングRNASNHG5は,miR-92a-3pとBTG2を調節することによって,胃がんの進行を抑制する. この研究は,SNHG5を胃がん治療の潜在的な標的として示しています.

科学分野:

腫瘍学
分子生物学
遺伝子規制

背景:

胃がん (GC) は,高い死亡率で重要な世界的な健康問題です.
GCの進行に伴う分子メカニズムを理解することは,効果的な治療法の開発に不可欠です.

研究の目的:

胃がんにおける長い非コーディングRNA SNHG5 (小核RNA宿主遺伝子5) の機能的役割を調査する.
GC進行における SNHG5,miR-92a-3p,BTG2の調節関係を解明する.

主な方法:

SNHG5,miR-92a-3p,BTG2発現をGC組織で評価するための定量的逆転写PCRとウェスタンブラット.
SNHG5,miR-92a-3p,BTG2との相互作用を確認するための二重ルシフェラーゼアッセイ
SNHG5 と miR-92a-3p がGC細胞の増殖,移動,および腫瘍の成長に与える影響を評価するためのインビトロ (細胞系) とインビボ (異種移植マウスモデル) の実験.

主要な成果:

SNHG5とBTG2はダウン調節され,miR-92a-3pはGC組織でアップ調節された.
SNHG5の過剰表現またはmiR-92a-3pのノックダウンにより,GC細胞の増殖と移動が抑制され,BTG2の発現が増加し,PI3K/ AKT経路が抑制されました.
in vivo試験では,SNHG5の過剰発現やmiR-92a-3pの抑制により,腫瘍の成長が低下することが示された.

結論:

LncRNA SNHG5は胃がんの腫瘍抑制剤として作用する.
SNHG5は,miR-92a-3p/ BTG2軸を通じたPI3K/ AKT経路を調節することによって,GC細胞の成長と移動を抑制する.
SNHG5は胃がんの潜在的治療標的である.

キーワード:

B細胞転位遺伝子2 細胞増殖胃がんロング・ノン・コーディング・RNA スモール・ヌクレオラー・RNA ホスト遺伝子5 非コードRNA PI3K/AKT信号経路について

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