- EMDB-62216: Bioengineered protein nanocarrier facilitating siRNA escape from ... -
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データベース: EMDB / ID: EMD-62216
タイトル
Bioengineered protein nanocarrier facilitating siRNA escape from lysosomes for targeted RNAi therapy in glioblastoma
マップデータ
試料
細胞器官・細胞要素: human ferritin heavy chain mutant
タンパク質・ペプチド: Ferritin heavy chain, N-terminally processed
キーワード
Bioengineered ferritin / Lysosomal escape / siRNA delivery / Glioblastoma targeted therapy / EGFR and TERT / METAL TRANSPORT
機能・相同性
機能・相同性情報
iron ion sequestering activity / ferritin complex / negative regulation of ferroptosis / Scavenging by Class A Receptors / Golgi Associated Vesicle Biogenesis / ferroxidase / autolysosome / ferroxidase activity / negative regulation of fibroblast proliferation / ferric iron binding ...iron ion sequestering activity / ferritin complex / negative regulation of ferroptosis / Scavenging by Class A Receptors / Golgi Associated Vesicle Biogenesis / ferroxidase / autolysosome / ferroxidase activity / negative regulation of fibroblast proliferation / ferric iron binding / autophagosome / Iron uptake and transport / ferrous iron binding / tertiary granule lumen / iron ion transport / ficolin-1-rich granule lumen / intracellular iron ion homeostasis / immune response / iron ion binding / negative regulation of cell population proliferation / Neutrophil degranulation / extracellular exosome / extracellular region / identical protein binding / nucleus / membrane / cytosol / cytoplasm 類似検索 - 分子機能
ジャーナル: Sci Adv / 年: 2025 タイトル: Bioengineered protein nanocarrier facilitating siRNA escape from lysosomes for targeted RNAi therapy in glioblastoma. 著者: Yiliang Jin / Baoli Zhang / Jianru Li / Zhenxi Guo / Chen Zhang / Xuehui Chen / Long Ma / Zhuoran Wang / Haiyin Yang / Yong Li / Yuhua Weng / Yuanyu Huang / Xiyun Yan / Kelong Fan / 要旨: RNA interference (RNAi) represents a promising gene-specific therapy against tumors. However, its clinical translation is impeded by poor performance of lysosomal escape and tumor targeting. This ...RNA interference (RNAi) represents a promising gene-specific therapy against tumors. However, its clinical translation is impeded by poor performance of lysosomal escape and tumor targeting. This challenge is especially prominent in glioblastoma (GBM) therapy, necessitating the penetration of the blood-brain barrier (BBB). Leveraging the intrinsic tumor-targeting and BBB traversing capability of human H-ferritin, we designed a series of ferritin variants with positively charged cavity and truncated carboxyl terminus, termed tHFn(+). These nanocarriers respond to weak acid and disassemble in endosomal compartments, exposing the internal positive charges to facilitate the lysosomal escape of loaded small interfering RNA (siRNA). Functioning as universal siRNA nanocarriers, tHFn(+) significantly enhanced the uptake of different siRNAs and suppressed gene expressions associated with GBM progression. Furthermore, tHFn(+) traversed the BBB and targeted glioma in vivo by binding to its receptors (e.g., transferrin receptor 1). tHFn(+)-delivered siRNAs exhibited exceptional therapeutic effects against glioma in vivo, advancing RNAi therapeutics beyond GBM for the treatment of various diseases.
詳細: Human ferritin heavy chain structure 4Y08 was used as the initial model, then the symmetry F432 was applied and thus obtained a homo 24-mer spherical structure as the startup model.
最終 再構成
解像度のタイプ: BY AUTHOR / 解像度: 1.73 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 使用した粒子像数: 966873