Lactilactobacillus curvatus TH19-7: 皮膚の病原体を標的とした広範囲の抗微生物プロバイオティクスを使用し,感染症に関連した皮膚損傷を in vitro で軽減します
Trang Thi Minh Nguyen1, Xiangji Jin2, Qiwen Zheng1
1Graduate School of Biotechnology, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin-si, 17104, Republic of Korea.
Archives of microbiology
|February 22, 2026
まとめ
Lactilactobacillus curvatus TH19-7は,キムチに由来するプロバイオティックであり,細胞溶解によって皮膚の病原体を効果的に除去し,炎症を軽減します. この安全で広範囲の抗菌剤は,抗酸化物質の性質を持ち,組織の回復を助けます.
科学分野:
- 微生物学 微生物学とは
- 皮膚科 皮膚科について
- プロバイオティクス プロバイオティクス
背景:
- 皮膚感染症の効果的な管理には,病原体を根絶し,組織損傷を減らす抗菌剤が必要です.
- プロバイオティクスは,病原体を標的とし,宿主の反応を調節することによって,皮膚感染症を管理するための潜在的な代替案を提供します.
研究 の 目的:
- キムチから分離されたLactilactobacillus curvatus TH19-7を安全で広範囲の抗微生物局所性プロバイオティクスとして評価する.
- 病原体の根絶における有効性,安全性プロファイル,抗酸化能力,および抗炎症効果を評価する.
主な方法:
- 16S rRNAの配列決定と,株の識別のための生化学プロファイリング.
- インビトロ抗菌活性試験 (MIC/MBC),スキャニング電子顕微鏡 (SEM) でメカニズムを明らかにする.
- 抗生物質に対する感受性,血液溶解,胆塩のヒドローラゼ活性,D-乳酸の産生を含む安全性評価.
- 抗酸化能力測定 (DPPH,ABTS) と,マクロファージ NO抑制による抗炎症評価.
主要な成果:
- L. curvatus TH19-7は,MIC (1.25 mg/mL) が低い主要な皮膚病原体 (S. aureus,C. acnes,P. aeruginosa,E. coli,C. albicans) に対して有意な殺菌活性を示した.
- SEMは,直接的な細胞溶解と膜破壊を抗菌メカニズムとして明らかにした.
- この菌株は強い抗酸化能力 (ABTS IC50 = 39.1 μg/mL) を示し,マクロファージの酸化窒素生成を34.8%抑制した.
- 強固な安全性プロファイルが確認されました:非溶血性,抗生物質感受性,低D-乳酸塩の産生,および胃腸のストレスに対する耐性.
結論:
- L. curvatus TH19-7は,直接細胞溶解による皮膚病原体に対する強力な抗微生物活性を持つ有望な局所益生菌です.
- 抗酸化および抗炎症性の性質は,組織損傷を軽減し,回復を促進するのに役立ちます.
- この菌株は,好ましい安全性プロファイルを示しており,皮膚感染症の管理に潜在的に適用されることを支持しています.
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