ジントニンはLPAR1/3とMEK信号経路を通じて作用する

BaiCheng Chen¹, Ajay Vijayakumar¹, Jun Hong Park¹

¹College of Veterinary Medicine, Biosafety Research Institute, Chonbuk National University, Iksan-city, Jeollabuk-Do 54596, Republic of Korea.

International journal of biological macromolecules

|August 27, 2025

まとめ

パナックス・ジンセンから派生したジントニンは,NKG2D分子を調節し,腫瘍細胞の殺戮を促進することで,自然殺虫細胞 (NK) の活動を高めます. これはギントニンを示唆しています

科学分野:

免疫学
薬理学について
分子生物学

背景:

パナックス・ジンセン (Panax ginseng) のタンパク質であるジントニンは,リソホスファティド酸受容体 (LPAR) アゴニストとして作用する.
LPARは細胞増殖,移動,生存を制御する上で重要な役割を果たします.
ナチュラルキラー (NK) 細胞は腫瘍の監視と排除に関与する重要な免疫細胞です

研究の目的:

NK細胞の活性化と機能に対するギントニンの影響を調査する.
NK細胞に対するギントニンの作用の基礎となる分子機構を解明する.
ジントニンの免疫治療薬としての可能性を探求するためです

主な方法:

NK細胞のNKG2D発現を分析するフロー細胞測定法
NKG2D+細胞の分布を検査する免疫ヒストロケミスト
NK細胞の細胞毒性を評価するためのYAC-1腫瘍モデル
遺伝子発現分析のための逆転写酶ポリメラーゼ連鎖反応 (RT-PCR)
トランスクリプトミア分析と阻害剤試験 (LPAR1/ 3, MAPK- MEK).

主要な成果:

ゲントニンは,外周血液NK細胞および胞におけるNKG2D発現を,投与量に応じて上位に調節した.
ジントニンは,YAC-1腫瘍細胞に対するNK細胞の細胞毒性を高めました.
ジントニンは,重要な免疫関連遺伝子 (パーフォリン,IL-2,IFN-γ,TNF-α) の転写を促進し,LPAR1を上調した.
ジントニンの効果はLPAR1/3とMAPK- MEKの信号伝達経路によって媒介された.
トランスクリプトミア分析により,NK細胞の伝達と代謝能力の改善が示されました.

結論:

ジントニンはLPAR1/ 3を標的として,NK細胞媒介の免疫反応を強化する.
ジントニンは免疫細胞機能に不可欠な信号伝達経路を調節する.
ジントニンは免疫療法における潜在的な治療薬として有望である.

キーワード:

ジントニン生まれつきの免疫反応 NKセル

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