Results 41 to 50 of about 77,825 (245)

Smad2 and Smad3 Positively and Negatively Regulate TGFβ-Dependent Transcription through the Forkhead DNA-Binding Protein FAST2 [PDF]

open access: yesMolecular Cell, 1998
We identify a mammalian forkhead domain protein, FAST2, that is required for induction of the goosecoid (gsc) promoter by TGF beta or activin signaling. FAST2 binds to a sequence in the gsc promoter, but efficient transcriptional activation and assembly of a DNA-binding complex of FAST2, Smad2, and Smad4 requires an adjacent Smad4 site.
Labbé, Etienne   +4 more
openaire   +2 more sources

Mechanism of miR-21 targeting Smad7 in pulmonary fibrosis of A549 cells induced by beryllium sulfate

open access: yes环境与职业医学, 2022
BackgroundThe pathogenesis of beryllium-induced pulmonary fibrosis is unknown and there is no specific treatment for the disease as yet. MicroRNA (miRNA) may play a role in the process of beryllium-induced pulmonary fibrosis.ObjectiveTo construct a ...
Faqiu QI   +6 more
doaj   +1 more source

Perivascular Matrix Densification Dysregulates Angiogenesis and Activates Pro‐Inflammatory Endothelial Cells

open access: yesAdvanced Science, EarlyView.
Perivascular matrix densification promotes the emergence of aberrant endothelial tip cells (ATECs) that invade and persist within fibrotic microenvironments. Using in vivo lineage tracing and a human microvessel model, this study shows that fibrous matrix cues destabilize VE‐cadherin–mediated junctions to gate TGF‐β signaling, inducing a pro ...
Jingyi Xia   +17 more
wiley   +1 more source

A Non‐Canonical Role of SMAD4 in Regulating 3D Genome Architecture to Inhibit Lung Squamous Cell Carcinoma Development

open access: yesAdvanced Science, EarlyView.
SMAD4 is identified as a guardian of 3D genome architecture in lung squamous cell carcinoma. Loss of SMAD4 unleashes EP300 at chromatin loop anchors, strengthening enhancer–promoter looping and H3K27ac at the SOX2 locus to drive aberrant SOX2 activation and tumor cell proliferation.
Qian Tang   +33 more
wiley   +1 more source

Olmesartan alleviates SARS-CoV-2 envelope protein induced renal fibrosis by regulating HMGB1 release and autophagic degradation of TGF-β1

open access: yesFrontiers in Pharmacology, 2023
Background and aims: Renal damage in severe coronavirus disease 2019 (COVID-19) is highly associated with mortality. Finding relevant therapeutic candidates that can alleviate it is crucial.
Shilin Zhou   +9 more
doaj   +1 more source

A Brain‐Penetrant Nanobody Reveals GSK3β‐Driven Proline‐Directed Phosphorylation as a Master Regulator of Ischemic Neurodegeneration

open access: yesAdvanced Science, EarlyView.
A brain‐targeted nanoparticle enables delivery of a therapeutic nanobody (Nb.29E9) that inhibits pathogenic GSK3β signaling. This intervention restores AMPK/mTORC1/TGFβ homeostasis, attenuates neuroinflammation and oxidative stress, and promotes long‐term functional recovery after ischemic stroke.
Lan Li   +14 more
wiley   +1 more source

Novel bone morphogenetic protein signaling through Smad2 and Smad3 to regulate cancer progression and development

open access: yesThe FASEB Journal, 2013
The bone morphogenetic protein (BMP) signaling pathways have important roles in embryonic development and cellular homeostasis, with aberrant BMP signaling resulting in a broad spectrum of human disease. We report that BMPs unexpectedly signal through the canonical transforming growth factor β (TGF‐β)‐responsive Smad2 and Smad3 ...
Alisha, Holtzhausen   +6 more
openaire   +3 more sources

Hemoglobin's α‐Helix‐to‐β‐Sheet Transition Enables Targeted mRNA Delivery to the Lung

open access: yesAdvanced Science, EarlyView.
Acidic heating converts hemoglobin into β‐sheet‐rich fibrils with positively charged surfaces. These hemoglobin fibrils electrostatically complex IL‐11 scFv mRNA, selectively bind circulating platelets, and hitchhike to the lung, where they are enriched in fibroblasts.
Xihua Liu   +11 more
wiley   +1 more source

Ubiquitination of Smad2 by Smurf1 inhibits endothelial-to-mesenchymal transition in human coronary artery endothelial cells

open access: yesScientific Reports
Smad2 is a well-established regulator involved in tissue development and in the pathogenesis of endothelial-to-mesenchymal transition (EndMT) mediated by TGF-β signaling.
Panpan Liu   +11 more
doaj   +1 more source

Mustard Gas Exposure Actuates SMAD2/3 Signaling to Promote Myofibroblast Generation in the Cornea

open access: yesCells, 2023
Sulfur mustard gas (SM) is a vesicating and alkylating agent used as a chemical weapon in many mass-casualty incidents since World War I. Ocular injuries were reported in >90% of exposed victims.
Nishant R. Sinha   +6 more
doaj   +1 more source

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