関連する実験動画
Updated: Feb 14, 2026

10:37
Induction and Analysis of Epithelial to Mesenchymal Transition
Published on: August 27, 2013
36.6K
エピテリア・メセンキマ・トランジション,免疫応答,口腔がんにおける細胞外マトリックスリモデリング
Nicole Lonni1, Camilla Kammer Pereira1, Amanda Maciel Costa1
1Health Sciences Center, Federal University of Santa Catarina, SC, Brazil.
まとめ
口腔状細胞癌 (OSCC) のがん関連線維芽細胞 (CAF) は,侵襲性腫瘍現象型と免疫細胞浸透の変化と関連しています. これらの発見は,CAFが腫瘍の微環境を調節し,患者の生存に影響を及ぼすことを示唆しています.
科学分野:
- 腫瘍学 腫瘍学
- 免疫学 免疫学とは
- がん生物学 がん生物学
背景:
- 口腔状細胞癌 (OSCC) は,複雑な腫瘍微環境 (TME) が特徴です.
- エピテリア・メゼンキマ・トランジション (EMT) は,がんの進行における重要なプロセスです.
- OSCCにおけるEMTと免疫応答の相互作用は,まだ完全に理解されていません.
研究 の 目的:
- OSCC TMEにおけるEMTマーカーと免疫細胞の浸透との関係を調査する.
- 腫瘍マイクロ環境と侵襲的な現象型を調節するがん関連線維芽細胞 (CAFs) の役割を調査する.
主な方法:
- 免疫ヒスト化学を用いたOSCC標本の遡及分析.
- EMTマーカー (PDP,CDH1,VIM,FN,TNC,VEGF) とCAFマーカー (α-SMA) の評価について
- 免疫細胞の定量化 (中性粒子はCD66b経由,Tリンパ球はCD8経由).
主要な成果:
- EMTのようなフェノタイプ (減少CDH1,増加VIM,PDP) はCAF活性化 (α-SMA) とVEGF発現と相関しています.
- 増加したVEGFは,腫瘍の侵入の増加と関連しています.
- 中性粒子の増加 (CD66b) と,特定のEMTおよびCAFマーカー (TNC,FN) と関連したCD8+T細胞の減少.
- 中性粒子の数の増加と中性粒子のリンパ球比は,全生存率の低下と相関している.
結論:
- CAFは,EMTと侵襲的なOSCCフェノタイプに関連しています.
- CAFは,TME内の免疫調節に役割を果たす可能性があります.
- これらの発見は,OSCCにおける潜在的な治療目標としてCAFを強調しています.
関連する概念動画
The Extracellular Matrix
89.5K
Overview
89.5K
The Extracellular Matrix
12.5K
Overview
In order to maintain tissue organization, many animal cells are surrounded by structural molecules that make up the extracellular matrix (ECM). Together, the molecules in the ECM maintain the structural integrity of tissue as well as the remarkable specific properties of certain tissues.
Composition of the Extracellular Matrix
The extracellular matrix (ECM) is commonly composed of ground substance, a gel-like fluid, fibrous components, and many structurally and functionally diverse...
In order to maintain tissue organization, many animal cells are surrounded by structural molecules that make up the extracellular matrix (ECM). Together, the molecules in the ECM maintain the structural integrity of tissue as well as the remarkable specific properties of certain tissues.
Composition of the Extracellular Matrix
The extracellular matrix (ECM) is commonly composed of ground substance, a gel-like fluid, fibrous components, and many structurally and functionally diverse...
12.5K
Humoral Immune Responses
84.2K
Overview
84.2K
Extracellular Matrix
5.6K
Unlike epithelial tissue, which is composed of cells closely packed with little or no extracellular space in between, connective tissue cells are dispersed in a matrix. This extracellular matrix (ECM) is composed of fibrous proteins like collagen, elastin, and fibronectin in a ground substance consisting of interstitial fluid, cell adhesion proteins, and proteoglycans. The proteoglycans form a gel-like material in the spaces between cells and provide hydration, buffering, binding, and force...
5.6K
Nucleosome Remodeling
11.3K
Nucleosomes are the basic units of chromatin compaction. Each nucleosome consists of the DNA bound tightly around a histone core, which makes the DNA inaccessible to DNA binding proteins such as DNA polymerase and RNA polymerase. Hence, the fundamental problem is to ensure access to DNA when appropriate, despite the compact and protective chromatin structure.
Nucleosome remodeling complex
Eukaryotic cells have specialized enzymes called ATP-dependent nucleosome remodeling enzymes. These enzymes...
Nucleosome remodeling complex
Eukaryotic cells have specialized enzymes called ATP-dependent nucleosome remodeling enzymes. These enzymes...
11.3K
Cell-mediated Immune Responses
84.3K
Overview
84.3K

