サノダイナミックナノ-LYTACs がん免疫療法のための逆腫瘍免疫抑制マイクロ環境
Mengke Xu1, Yuxuan Hu1, Jiayan Wu1
1School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 70 Nanyang Drive, Singapore 637457.
Journal of the American Chemical Society
|December 7, 2024
まとめ
新しいナノリソソームターゲティングキメラ (ナノ-LYTAC) は,免疫抑制性M2マクロファージを退化させ,がん免疫療法を強化します. このアプローチは腫瘍の微小環境を再プログラムし,臨床前モデルでは腫瘍の成長と転移を抑制します.
科学分野:
- 生物医学工学
- 癌 研究
- 免疫療法
背景:
- 細胞外および膜外タンパク質は,腫瘍免疫抑制微環境 (TIME) に著しく影響する.
- タンパク質分解療法では,主にがん細胞を標的とし,免疫細胞への適用は限られている.
研究 の 目的:
- M2マクロファージ膜タンパク質の分解と音波動的治療のためのポリマーナノリソソームターゲティングキメラ (ナノ-LYTAC) の開発.
- ナノLYTACの有効性を評価し,TIMEを再プログラムし,結合がん免疫療法を強化する.
主な方法:
- ナノリゾーム標的化キメラ (ナノ-LYTAC) の開発.
- M2マクロファージ機能 (CD206発現,IL-10分泌,アポトーシス) に及ぼす濃度依存の作用に対するナノ-LYTACの分解効果の評価.
- ナノ- LYTACの腫瘍保持とTIME成分 (M2マクロファージ,調節性T細胞,デンドリット細胞,Tエフェクタ細胞) に及ぼす影響の評価
主要な成果:
- ナノ- LYTACは従来の阻害剤と比較して優れたIL- 4R分解を示した.
- ナノ- LYTACの低濃度は,M2マクロファージのCD206発現とIL-10分泌を低下させ,高濃度はアポトーシスを誘発した.
- ナノ- LYTACは長期間腫瘍を保持し,腫瘍の成長,転移,再発を抑制する効果的な音波免疫療法を可能にしました.
結論:
- ナノ-LYTACは,M2マクロファージターゲティングと音波療法のための効果的なプラットフォームとして機能します.
- このアプローチは,腫瘍の免疫抑制微生物環境を 協同的に再プログラムし,抗腫瘍免疫を促進します.
- ナノ-LYTACは先進的な結合がん免疫療法の戦略に期待されています.
さらに関連する動画
07:44Studying the Effects of Tumor-Secreted Paracrine Ligands on Macrophage Activation using Co-Culture with Permeable Membrane Supports
Published on: November 28, 2019
7.5K
14:10Contrast Ultrasound Targeted Treatment of Gliomas in Mice via Drug-Bearing Nanoparticle Delivery and Microvascular Ablation
Published on: December 15, 2010
15.9K
関連する概念動画
Tumor Immunotherapy
476
Immunotherapy is a treatment that boosts or manipulates the immune system to fight diseases, including cancer. For instance, by stimulating an immune response through vaccinations against viruses that cause cancers, like hepatitis B virus and human papillomavirus, these diseases can be prevented. Nonetheless, some cancer cells can avoid the immune system due to their rapid mutation and division. The immune response to many cancers involves three phases: elimination, equilibrium, and escape.
476
The Tumor Microenvironment
6.5K
Every normal cell or tissue is embedded in a complex local environment called stroma, consisting of different cell types, a basal membrane, and blood vessels. As normal cells mutate and develop into cancer cells, their local environment also changes to allow cancer progression. The tumor microenvironment (TME) consists of a complex cellular matrix of stromal cells and the developing tumor. The cross-talk between cancer cells and surrounding stromal cells is critical to disrupt normal tissue...
6.5K
Cancer Therapies
7.6K
Cancer therapies are various modes of treatment, such as surgery, radiation therapy, and chemotherapy that are administered to cancer patients.
However, cancer treatments can pose several challenges, as therapies used to kill cancer cells are generally also toxic to normal cells. Moreover, cancer cells mutate rapidly and can develop resistance to chemical agents or radiation therapy. Besides, all types of cancer cells may not respond to the same therapy. Some cancer cells respond to one...
However, cancer treatments can pose several challenges, as therapies used to kill cancer cells are generally also toxic to normal cells. Moreover, cancer cells mutate rapidly and can develop resistance to chemical agents or radiation therapy. Besides, all types of cancer cells may not respond to the same therapy. Some cancer cells respond to one...
7.6K
Cancer Vaccines
338
Cancer treatment vaccines are a rapidly evolving field that offers a promising approach to immunotherapy. Unlike traditional vaccines that prevent diseases, cancer treatment vaccines are designed to treat existing cancers by stimulating the immune system to recognize and attack cancer cells.
Cancer vaccines come in two categories: preventive (prophylactic) and treatment (active). Preventive vaccines, such as the Human Papillomavirus (HPV) vaccine, protect against viruses that cause certain...
Cancer vaccines come in two categories: preventive (prophylactic) and treatment (active). Preventive vaccines, such as the Human Papillomavirus (HPV) vaccine, protect against viruses that cause certain...
338
