普通の乳腺コラーゲンストロマの空間プロテオミクス:密度と体量指数との関連

Jaclyn B Dunne¹, Denys Rujchanarong¹, Yeonhee Park²

¹Department of Pharmacology & Immunology, Bruker-MUSC Center of Excellence, Clinical Glycomics, Medical University of South Carolina, Charleston, South Carolina 29425, United States.

Journal of proteome research

|February 13, 2026

まとめ

正常な乳腺組織におけるコラーゲン変化は,ボディマス指数 (BMI) と関連しており,遺伝的祖先によって異なる. 乳腺ストロマタンパク質のこれらの変化は,乳がんのリスクに影響を与える可能性があります.

科学分野:

バイオケミストリーバイオケミストリー
プロテオミクスプロテオミクスは,プロテオミクスの
がん生物学がん生物学

背景:

コラーゲン乳腺ストロマのがんリスクにおける役割は知られているが,正常組織におけるタンパク質学的調節は不明である.
乳腺ストロマタンパク質の正常な変異を理解することは,早期がんのリスク因子を特定するために重要です.

研究の目的:

ヒトの正常な乳腺組織におけるコラーゲンタンパク質の空間的調節を調査する.
コラーゲン変異,ボディマス指数 (BMI),遺伝的祖先,およびマンモグラフ密度の間の関連性を調査する.

主な方法:

異なる遺伝的祖先とBMIグループからの正常な乳腺組織の断面 (n=40) の分析.
コラーゲン分析のために10plex細胞マーカー染色,第2ハーモニックジェネレーション顕微鏡,質量スペクトロメトリ画像を用いた.
コラーゲンシグネチャーを抽出し,臨床的特徴との関連を評価するために,コンピューティング方法を使用しました.

主要な成果:

ボディマス指数 (BMI) 調節されたCD44およびCOL1A1マーカーで,コラーゲン繊維の幅はBMIと遺伝的祖先によって異なります.
質量スペクトロメトリ画像は,コラーゲンα-1 (I) 鎖プロテオームの空間的異質性とサイト固有のプロリン水酸化を明らかにした.
47のコラーゲンペプチドがマンモグラフ密度カテゴリー (BI-RADS) を区別し,多変量モデリングは,コラーゲン変化の重要な決定因子としてBMIを確認しました.

結論:

正常な乳腺組織における空間的なコラーゲンタンパク質の変異は,BMIと有意に関連しており,遺伝的祖先の影響を受けています.
これらの発見は,乳がんのリスク評価のための空間的なコラーゲンタンパク質の変化を調査する潜在的な臨床的価値を強調しています.
この研究は,乳腺ストロマコラーゲン変異の臨床的影響に関する将来の研究のための基礎を確立します.

キーワード:

PTM PTMとは乳房の微生物環境についてコラーゲンコラーゲンコラーゲンの翻訳後の変化細胞外マイクロ環境とはプロリンの水酸化によりプロリンが生成されます.正常な乳房は正常な乳房です.プロテオミクスプロテオミクス

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