establishment of protein localization to extracellular region / cellular response to acetaldehyde / frontal suture morphogenesis / Influenza Virus Induced Apoptosis / adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains / positive regulation of microglia differentiation / regulation of interleukin-23 production / branch elongation involved in mammary gland duct branching / positive regulation of primary miRNA processing / columnar/cuboidal epithelial cell maturation ...establishment of protein localization to extracellular region / cellular response to acetaldehyde / frontal suture morphogenesis / Influenza Virus Induced Apoptosis / adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains / positive regulation of microglia differentiation / regulation of interleukin-23 production / branch elongation involved in mammary gland duct branching / positive regulation of primary miRNA processing / columnar/cuboidal epithelial cell maturation / negative regulation of skeletal muscle tissue development / embryonic liver development / macrophage derived foam cell differentiation / response to laminar fluid shear stress / regulation of enamel mineralization / regulation of branching involved in mammary gland duct morphogenesis / regulation of cartilage development / TGFBR2 MSI Frameshift Mutants in Cancer / regulation of striated muscle tissue development / regulation of blood vessel remodeling / regulation of protein import into nucleus / regulatory T cell differentiation / tolerance induction to self antigen / extracellular matrix assembly / negative regulation of natural killer cell mediated cytotoxicity directed against tumor cell target / negative regulation of hyaluronan biosynthetic process / type III transforming growth factor beta receptor binding / myofibroblast differentiation / positive regulation of cardiac muscle cell differentiation / positive regulation of odontogenesis / connective tissue replacement involved in inflammatory response wound healing / Langerhans cell differentiation / TGFBR2 Kinase Domain Mutants in Cancer / positive regulation of smooth muscle cell differentiation / positive regulation of exit from mitosis / secondary palate development / negative regulation of macrophage cytokine production / odontoblast differentiation / SMAD2/3 Phosphorylation Motif Mutants in Cancer / TGFBR1 KD Mutants in Cancer / positive regulation of isotype switching to IgA isotypes / positive regulation of mesenchymal stem cell proliferation / positive regulation of receptor signaling pathway via STAT / membrane protein intracellular domain proteolysis / positive regulation of extracellular matrix assembly / retina vasculature development in camera-type eye / heart valve morphogenesis / bronchiole development / TGFBR3 regulates TGF-beta signaling / mammary gland branching involved in thelarche / hyaluronan catabolic process / positive regulation of vasculature development / lens fiber cell differentiation / ATP biosynthetic process / negative regulation of extracellular matrix disassembly / type II transforming growth factor beta receptor binding / receptor catabolic process / positive regulation of branching involved in ureteric bud morphogenesis / positive regulation of chemotaxis / TGFBR1 LBD Mutants in Cancer / receptor ligand inhibitor activity / type I transforming growth factor beta receptor binding / positive regulation of mononuclear cell migration / response to salt / germ cell migration / endoderm development / negative regulation of biomineral tissue development / phospholipid homeostasis / negative regulation of cell-cell adhesion mediated by cadherin / negative regulation of myoblast differentiation / positive regulation of vascular permeability / response to cholesterol / oligodendrocyte development / cell-cell junction organization / negative regulation of interleukin-17 production / phosphate-containing compound metabolic process / surfactant homeostasis / transforming growth factor beta binding / deubiquitinase activator activity / sprouting angiogenesis / negative regulation of release of sequestered calcium ion into cytosol / negative regulation of ossification / positive regulation of chemokine (C-X-C motif) ligand 2 production / digestive tract development / aortic valve morphogenesis / RUNX3 regulates CDKN1A transcription / response to vitamin D / face morphogenesis / positive regulation of fibroblast migration / ureteric bud development / neural tube development / positive regulation of regulatory T cell differentiation / positive regulation of peptidyl-tyrosine phosphorylation / Molecules associated with elastic fibres / negative regulation of phagocytosis / positive regulation of epidermal growth factor receptor signaling pathway / negative regulation of neuroblast proliferation / negative regulation of cytokine production / lung alveolus development / Syndecan interactions 類似検索 - 分子機能
Fonds National de la Recherche Scientifique (FNRS)
PDR / T.0145.21
ベルギー
Fonds National de la Recherche Scientifique (FNRS)
WELBIO / CR2019A-02R
ベルギー
Other private
Salus Sanguinis
引用
ジャーナル: Cell Rep / 年: 2025 タイトル: Antibody-mediated TGF-β1 activation for the treatment of diseases caused by deleterious T cell activity. 著者: Fanny Lambert / Jan Felix / Séverine Wautier / Emilie Dupré / Mathieu Jamez / Camille Michiels / Mélanie Gaignage / Lore Mariën / Manon Lesage / Bas van der Woning / Savvas N Savvides / Sophie Lucas / 要旨: Transforming growth factor β1 (TGF-β1) is an immunosuppressive cytokine produced as a latent homodimer, in which mature TGF-β1 is encapsulated and kept inactive by the latency-associated peptide ...Transforming growth factor β1 (TGF-β1) is an immunosuppressive cytokine produced as a latent homodimer, in which mature TGF-β1 is encapsulated and kept inactive by the latency-associated peptide (LAP). The transmembrane protein GARP presents latent TGF-β1 on the surface of regulatory T cells (Tregs) to enable activation and release of mature TGF-β1 by integrins. Here, we derived monoclonal antibodies (mAbs) that activate latent TGF-β1 anchored on cells by a transmembrane protein. Biochemical and structural studies by electron cryo-microscopy (cryo-EM) reveal that such mAb-mediated activation requires bivalent binding close to the LAP dimerization interface and crosslinking of two membrane-bound GARP:TGF-β1 complexes on the same cell or across different cells. Administration of mAbs to mice with graft versus host disease reduced disease severity and increased survival. The therapeutic effect required Tregs. Collectively, our findings demonstrate that activation of membrane-bound TGF-β1 in vivo is achievable with mAbs, introducing new immunotherapeutic options for allo- or autoimmune diseases characterized by deleterious T cell activity insufficiently controlled by Tregs.
履歴
登録
2023年12月12日
登録サイト: PDBE / 処理サイト: PDBE
改定 1.0
2025年3月26日
Provider: repository / タイプ: Initial release
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2025年3月26日
Data content type: EM metadata / Data content type: EM metadata / Provider: repository / タイプ: Initial release
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2025年3月26日
Data content type: Additional map / Part number: 1 / Data content type: Additional map / Provider: repository / タイプ: Initial release
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2025年3月26日
Data content type: FSC / Data content type: FSC / Provider: repository / タイプ: Initial release
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2025年3月26日
Data content type: Half map / Part number: 1 / Data content type: Half map / Provider: repository / タイプ: Initial release
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2025年3月26日
Data content type: Half map / Part number: 2 / Data content type: Half map / Provider: repository / タイプ: Initial release
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2025年3月26日
Data content type: Image / Data content type: Image / Provider: repository / タイプ: Initial release
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2025年3月26日
Data content type: Mask / Part number: 1 / Data content type: Mask / Provider: repository / タイプ: Initial release
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2025年3月26日
Data content type: Primary map / Data content type: Primary map / Provider: repository / タイプ: Initial release
平均露光時間: 3.37 sec. / 電子線照射量: 61.8 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) / 撮影したグリッド数: 2 / 実像数: 13898 詳細: A total of 6678 untilted movies were collected with a defocus of 0.8 to 2 micrometer. Following untilted data collection, 4020 movies were collected at 16 degree tilt and 3200 movies were ...詳細: A total of 6678 untilted movies were collected with a defocus of 0.8 to 2 micrometer. Following untilted data collection, 4020 movies were collected at 16 degree tilt and 3200 movies were collected at 35 degree tilt, all using similar microscope settings.
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解析
EMソフトウェア
ID
名称
バージョン
カテゴリ
2
SerialEM
画像取得
4
cryoSPARC
4.2.1
CTF補正
7
UCSF Chimera
モデルフィッティング
9
cryoSPARC
初期オイラー角割当
10
cryoSPARC
最終オイラー角割当
11
cryoSPARC
分類
12
cryoSPARC
3次元再構成
13
PHENIX
1.19.2-4158
モデル精密化
CTF補正
タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION
対称性
点対称性: C1 (非対称)
3次元再構成
解像度: 2.98 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 320551 / クラス平均像の数: 1 / 対称性のタイプ: POINT