Autoinduction of transforming growth factor beta 1 is mediated by the AP-1 complex.
Researchers observed that autoinduction of TGF-beta 1 is mediated by the AP-1 complex, highlighting the role of c-jun and c-fos in its transcriptional regulation.
Transforming Growth Factor Beta 1 · TGF-β1
Transforming Growth Factor-beta 1 (TGF-β1) is a multifunctional cytokine produced primarily by platelets, macrophages, and various cell types in the body, playing a crucial role in cellular processes such as growth, differentiation, and immune regulation. Researchers primarily study TGF-β1 for its involvement in various pathological conditions, including fibrosis, inflammation, and vascular hypertrophy. Key findings suggest that TGF-β1 can influence cell proliferation and mineralization in dental tissues, as well as contribute to cardiac fibrosis and arrhythmogenicity by altering the electrophysiological properties of cardiac myofibroblasts. Additionally, studies indicate that TGF-β1 expression is associated with inflammatory airway diseases and conditions like adenomyosis, highlighting its complex role in different tissues. Current research continues to explore the regulatory pathways of TGF-β1 and its potential implications in therapeutic strategies for various diseases.
Transforming Growth Factor Beta 1 (TGF-β1) is an endogenous cytokine belonging to the transforming growth factor beta superfamily, produced by various cell types including platelets, macrophages, and fibroblasts. It is a polypeptide growth factor involved in a wide range of cellular processes. TGF-β1 plays key roles in cell proliferation, differentiation, and apoptosis, making it a significant focus in research areas such as tissue regeneration, fibrosis, and cancer. Researchers have observed its involvement in the remodeling and immunosuppression processes in inflammatory airway diseases, cardiac fibrosis, and vascular hypertrophy in hypertension. The mechanism of action of TGF-β1 involves binding to TGF-β receptors, which activates SMAD-dependent and SMAD-independent signaling pathways, leading to transcriptional regulation of target genes. These pathways are crucial for its diverse biological effects, including modulation of the extracellular matrix and cell growth. Pharmacokinetic properties of TGF-β1 are not well-documented, with limited data on its half-life and metabolism. Clinically, TGF-β1 is not used as a therapeutic agent but is a target for research in developing treatments for diseases associated with its dysregulation, such as fibrosis and cancer. Its regulatory standing is primarily in the context of research rather than direct clinical application.
TGF-β1 acts primarily through the TGF-β receptors (TGFBR1 and TGFBR2), initiating SMAD-dependent signaling pathways that regulate gene expression. This signaling cascade influences cellular processes such as proliferation, differentiation, and extracellular matrix production.
TGF-beta 1 primarily signals through the TGF-beta receptor type I (TGFBR1) and type II (TGFBR2), activating the Smad signaling pathway, particularly Smad2 and Smad3, which translocate to the nucleus to regulate gene expression. This mechanism influences various biological processes, including cell proliferation, differentiation, and extracellular matrix production, contributing to fibrosis and vascular hypertrophy. Additionally, TGF-beta 1 can modulate other signaling pathways, such as MAPK and PI3K/Akt, but the complete understanding of its multifaceted roles and interactions remains to be fully elucidated.
Pharmacokinetic data for TGF-β1 is limited and primarily studied in research settings.
Temperature
Refrigerate at 2-8C
Light
Protect from light
Form
Aqueous solution: use within specified period after opening
Notes
Storage conditions are critical to maintain stability and activity in research settings.
TGF-β1 is soluble in aqueous solutions, which is relevant for its formulation in experimental studies.
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Current evidence is limited regarding the specific mechanisms by which TGF-β1 influences cell proliferation and differentiation across various tissues, particularly in the context of different concentrations and their effects on cellular outcomes. Further research is needed to clarify the contradictory findings related to TGF-β1 expression in conditions like adenomyosis, as well as its role in arrhythmogenesis and vascular hypertrophy, necessitating larger, well-controlled studies that examine diverse populations and long-term effects. Additionally, the interplay between TGF-β1 and other regulatory factors in inflammatory airway diseases requires more comprehensive investigations to develop effective therapeutic strategies.
3,996
Total Citations
25
Human/RCT
3.5
Avg. Influence
2024
Latest
Researchers observed that autoinduction of TGF-beta 1 is mediated by the AP-1 complex, highlighting the role of c-jun and c-fos in its transcriptional regulation.
The study demonstrated that maternal sources of TGF-beta 1 are crucial for the normal development and survival of TGF-beta 1 null newborn mice, highlighting the importance of maternal rescue during fetal development.
Researchers observed that TGF-beta 1 administration protects against collagen-induced arthritis and delays relapses in experimental allergic encephalomyelitis in mice, demonstrating its potent anti-inflammatory effects.
Researchers observed that eosinophils are the main source of TGF-β1 mRNA in severe asthmatics, indicating their role in subepithelial fibrosis and asthma pathogenesis.
Researchers observed that TGF-β3 expression is increased in diabetic foot ulcers compared to normal skin, while TGF-β1 expression remains unchanged, potentially contributing to impaired healing.
Researchers observed extensive recruitment of polymorphonuclear leukocytes in rat synovial tissue following intra-articular injection of TGF-beta 1, indicating its role in synovial inflammation and hyperplasia.
Bowen Timothy, et al. · The Journal of pathology · 2013
Researchers observed that microRNAs play a significant role in regulating TGF-β1 expression and its contribution to tissue fibrosis.
Key findings
Researchers observed that serum TGF-beta 1 levels are significantly influenced by platelet count, indicating the need for plasma over serum for accurate measurement in immunoassays.
Researchers observed that cyclosporine stimulates TGF-β1 gene transcription in human A-549 cells and T cells, suggesting a novel mechanism for its immunosuppressive effects.
The study demonstrated that transforming growth factor beta 1 inhibited proliferation and induced morphological changes in cultured astrocytes while promoting extracellular matrix production.
Log cycles, set reminders and visualize serum levels.
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