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      HomeProduct ApplicationDecorin: A Scientific "Magic Tool" in Disease Model Research

      Decorin: A Scientific "Magic Tool" in Disease Model Research

      Decorin (DCN), a small leucine-rich proteoglycan, plays an indispensable role in the extracellular matrix (ECM). It interacts not only with extracellular matrix proteins, cell growth factors, and cell surface receptors but also regulates the diameter and spacing of collagen fibers, primarily composed of Type I collagen, in fibrous tissues. Decorin is involved in the regulation of key processes such as collagen fiber assembly, cell proliferation, inflammatory responses, fibrosis, and tumorigenesis, making it a powerful tool in scientific research for constructing various disease models and exploring physiological mechanisms.

      一、Construction and Study of Fibrosis Disease Models

      Application: Study of pulmonary fibrosis, hepatic fibrosis, cardiac fibrosis, etc.

      Mechanism: Decorin binds to and inhibits the activity of TGF-β (transforming growth factor-beta), regulating collagen fiber assembly and thus affecting the fibrosis process.

      Model Example:
      (1)Construct spontaneous fibrosis models by knocking out the Decorin gene (Dcn-/- mice).
      (2)Induce fibrosis using drugs (e.g., bleomycin, abs817895)or surgery, and observe the therapeutic effects of Decorin (abs06612)

      二、Application and Exploration in Tumor Models

      Application: Study of tumor growth, metastasis, and angiogenesis.

      Mechanism: Decorin inhibits receptor tyrosine kinases such as EGFR and Met, or directly binds to VEGF to block angiogenesis.

      Model Example:
      Overexpress Decorin in xenograft tumor models (e.g., breast cancer, glioma) to observe tumor volume and metastasis inhibition. Use immunodeficient mice (e.g., nude mice) to assess the anti-cancer effects of Decorin.

      三、Key Role in Cardiovascular Disease Models

      Application: Myocardial infarction, atherosclerosis, vascular remodeling.

      Mechanism: Decorin regulates the structure of the collagen network, affecting myocardial repair or plaque stability.

      Model Example:
      (1)Myocardial infarction model induced by coronary artery ligation to assess the impact of Decorin on myocardial repair.
      (2)ApoE-/- mouse atherosclerosis model to study the regulation of plaque formation by Decorin.

      四、Important Role in Skin and Wound Healing Models

      Application: Chronic wounds, scar formation (e.g., hypertrophic scars, keloids).

      Mechanism: By regulating collagen fiber arrangement and TGF-β signaling, it affects the quality of healing.

      Model Example:
      (1)Diabetic mouse skin defect model to test the effect of Decorin in promoting healing.
      (2)In vitro 3D skin model to study the impact of Decorin on keratinocyte migration.

      五、Application Prospects in Bone and Joint Disease Models

      Application: Osteoarthritis, osteoporosis, cartilage repair.

      Mechanism: Decorin regulates the assembly of collagen fibers (e.g., Type II collagen) and the activity of growth factors.

      Model Example:
      (1)Surgically induced osteoarthritis model (e.g., mouse knee instability model).
      (2)In vitro chondrocyte culture model to evaluate the effects of Decorin on cartilage differentiation.

       

      六、Unique Contributions in Inflammation and Immune Regulation Models

      Application: Rheumatoid arthritis, inflammatory bowel disease (IBD).

      Mechanism: Decorin exerts anti-inflammatory effects by binding to Toll-like receptors (TLR2/4) or regulating macrophage polarization.

      Model Example:
      Collagen II (abs47006104)-induced arthritis (CIA) mouse model.
      DSS(abs9192)induced colitis model.

      Common Experimental Methods

      In experimental research, genetically engineered animals such as Dcn-/- mice or tissue-specific overexpression models provide important tools for in-depth exploration of the functions of decorin. In terms of administration, recombinant Decorin (abs06612) protein can be delivered locally or systemically to intervene in disease models. For detection indicators, hydroxyproline assay(abs580066) can be used to evaluate collagen content, Masson staining(abs9348)to observe histopathological changes, and detection of molecular markers such as TGF-β(abs552352), α-SMA(abs552296) to comprehensively understand the effects of decorin.

      Application Example

      Ding Qing [1] used the CCK-8 cell proliferation and toxicity detection kit to test the effects of different concentrations of decorin (1 μg/mL, 2.5 μg/mL, 5 μg/mL, and 7.5 μg/mL) and TGF-β1 (1 ng/mL, 2.5 ng/mL, 5 ng/mL, and 10 ng/mL) on the proliferation of fibroblasts cultured in vitro. After intervention with TGF-β1 (5 ng/mL) and decorin (5 µg/mL and 7.5 µg/mL) in fibroblasts, Western-blot, Polymerase chain reaction (PCR), and cell immunofluorescence staining were used to detect the expression of α-smooth muscle actin (α-SMA) to observe the effects of decorin on the transdifferentiation of fibroblasts into myofibroblasts. At the same time, Western-blot and PCR were used to test the effects of decorin on the synthesis of Type I collagen, Type III collagen, and fibronectin in fibroblasts stimulated by TGF-β1. Then, cell immunofluorescence staining further confirmed the effects of decorin on the expression of Type I collagen and fibronectin in fibroblasts stimulated by TGF-β1.



      Decorin exhibits tissue-specific roles in various disease models, such as inhibitory effects in tumors but promoting effects in cartilage repair. Therefore, when conducting related research, it is necessary to carefully select the appropriate model based on specific research objectives and design scientifically sound control experiments to accurately reveal the biological functions and potential application value of decorin.

      References:

      [1] Ding Qing. Study on the Effect and Mechanism of Decorin in Preventing Epidural Fibrosis and Adhesion after Laminectomy [D]. Huazhong University of Science and Technology, 2022.

      Product Recommendations

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      Collagen Type I (Chicken) Rheumatoid Arthritis/Osteoarthritis Model

      abs9270

      Complete Freund's Adjuvant (CFA) Immune Adjuvant

      abs580066

      Hydroxyproline Detection Kit Collagen Content Evaluation

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      Masson's Trichrome Stain Histopathological Research

      abs552352

      Mouse TGF- ELISA Kit Quantitative TGF

      abs552296

      Mouse -SMA ELISA Kit Quantitative -SMA

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      CCK-8 Kit Cell Proliferation/Cytotoxicity Assay



       



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