AI Article Synopsis
- The study aimed to analyze the gene expression of MMP-2, MMP-9, and TIMP-1 in different stages of hypertrophic scars compared to normal skin samples.
- Researchers extracted RNA from both normal skin and hypertrophic scar samples, using RT-PCR to measure the expression levels of the target genes.
- Results indicated higher levels of TIMP-1 in hypertrophic scars, while MMP-2 and MMP-9 levels returned to normal in mature scars, suggesting a link between these genes' expression and the development and maturation of hypertrophic scars.
Article Abstract
Objective: To investigate the gene expression of matrix metalloproteinases (MMP-2, MMP-9) and tissue inhibitor of metalloproteinase-1 (TIMP-1) in proliferative and mature hypertrophic scars.
Methods: Total RNA from 8 normal skin samples and from 16 human hypertrophic scar samples of different maturing stage was respectively extracted, and then mRNA was isolated. The gene expressions of MMP-2, MMP-9 and TIMP-1 in these samples were examined with reverse transcription-polymerase chain reaction (RT-PCR).
Results: The gray scale ratio of MMP-2, MMP-9 and TIMP-1 transcription in normal skin were (3.8 +/- 0.7)%, (5.8 +/-4.4)%, (30.3 +/- 3.0)%, respectively, which were obviously higher than those in proliferative hypertrophic scar [(14 +/- 5)%, (18 +/- 5)%, (38 +/- 4)%, P < 0.05]. The expression of MMP-2 and MMP-9 genes in mature hypotrophic scar returned to normal level, but that of TIMP-1 remained high when compared with that of normal level (P < 0. 05).
Conclusion: The increase in MMP-2, MMP-9 and TIMP-1 gene expression might be involved in the formation of hypertrophic scars, while the lowering of MMP-2 and MMP-9 gene expression might be associated with the maturation of hypertrophic scars.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
With the rapid emergence of pufferfish aquaculture and processing industries, fish skin is underutilized as a byproduct of processing, leading to resource waste. In this study, skin collagen (TBSC) was extracted by acetic acid solubilization and its physicochemical properties were analyzed. The effects of TBSC and the TBSC hydrolysate (TBSCH) on ultraviolet (UV) irradiation-induced photoaging were investigated using a mouse model.
View Article and Find Full Text PDFAnti-Inflammatory Action and Molecular Mechanism of Fucoidan Against Cystitis Glandularis.
Food Sci Nutr
December 2024
The Third Affiliated Hospital of Guangxi Medical University, The Second People's Hospital of Nanning City Nanning China.
Cystitis glandularis (CG), known as a pre-gradual lesion in the bladder, is the pathological changes in the vesical mucosa characterized by inflammatory invasion and chronic obstruction. Clinically, effective treatment against CG is prescribed only when using drug therapy. Fucoidan, the naturally extractive polysaccharide, is well-reported bioactive compound with anti-inflammatory and immunoregulatory properties.
View Article and Find Full Text PDFEffect of the IL-6 Trans-signaling Pathway in the Absence or Presence of TGF-β2 on Schlemm's Canal Endothelial Cells.
Exp Eye Res
December 2024
Department of Ophthalmology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan.
Intraocular pressure (IOP) is regulated through the balance of production and drainage of aqueous humor. The main route of aqueous-humor outflow comprises the trabecular meshwork (TM) and Schlemm's canal (SC). We reported that IL-6 trans-signaling can inhibit TGF-β signaling in TM cells and may affect regulation of IOP.
View Article and Find Full Text PDFDerivatives of D(-)-glutamine-based MMP-2 inhibitors as an effective remedy for the management of chronic myeloid leukemia-Part-III: Synthesis, biological screening and in silico binding interaction analysis.
Bioorg Chem
December 2024
Natural Science Laboratory, Division of Medicinal and Pharmaceutical Chemistry, Department of Pharmaceutical Technology, Jadavpur University, Kolkata 700032, India. Electronic address:
Tyrosine kinase inhibitors (TKIs) have markedly improved the overall survival rate of patients with chronic myeloid leukemia (CML), enabling them to achieve a normal life expectancy. However, toxicity, relapse, and drug resistance continue to pose major challenges in the clinical treatment of CML. The progression of leukemia is directly connected to higher expression levels and enzymatic actions of matrix metalloproteinase-2 (MMP-2).
View Article and Find Full Text PDF[Effects of Qixiong Zuogui Compound Prescription on blood-brain barrier permeability of rats with ischemic stroke by interfering in exosomes of bone marrow stem cells and its anti-aging effects].
Zhongguo Zhong Yao Za Zhi
September 2024
the First Affiliated Hospital of Henan University of Chinese Medicine Zhengzhou 450000, China.
This study explores the reparative effect of Qixiong Zuogui Compound Prescription(QXZG) intervention on the blood-brain barrier(BBB) in the aging brain with middle cerebral artery occlusion(MCAO) in rats mediated by bone marrow stem cells(BMSCs)-derived exosomes, as well as its anti-aging mechanism. An aging MCAO composite model was established using D-galactose-induced aging combined with line embolism. Rats were divided into young sham surgery group, aging sham surgery group, model group, exosome group, and exosome with traditional Chinese medicine(TCM) intervention group.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!