Exposure to ultraviolet (UV) light can cause skin photoaging, which is associated with upregulation of matrix metalloproteinases (MMPs) and downregulation of collagen synthesis. It has been reported that MMPs, especially MMP-1, MMP-3 and MMP-9, decrease the elasticity of the dermis by degrading collagen. In this study, we assessed the effects of Pinus densiflora extract (PDE) on photoaging and ...

Matrix metalloproteinases (MMPs) are members of the metzincin group of proteases which share the conserved zinc-binding motif in their catalytic active site. It was originally thought that their main function is to degrade the various components of the extracellular matrix (ECM), yet recent studies have led us to appreciate their significance as regulators of extracellular tissue signalling net...

Metastatic cascade in malignant tumors, including breast cancer, starts with localized invasion of the host tissue. This process, requiring that tumor cells separate from each other, includes loss of homotypic and heterotypic cell adhesion and cell-cell contact inhibition, acquisition of motility, exacerbated by “epithelial-to-mesenchymal transition”, and production of proteolytic enzymes which...

Glioblastoma multiforme (GBM) is a highly advanced and invasive brain tumor due to which current treatments cannot completely treat GBM or prevent recurrence. Therefore, adjunctive treatments are required. As part of the invasive and angiogenic nature of GBM, it has been well established that matrix metalloprotease-2 (MMP-2) and MMP-9 are overactive. To better treat GBM using chemotherapy, we h...

neovascularization of the normally avascular cornea was associated with a notable increase in the expression of the major pro-angiogenic factors, inflammatory cytokines and proteases. the data supporting a causal role for vascular endothelial growth factor (vegf), inflammatory cytokines and matrix metalloproteinase (mmps) are extensive. anti-angiogenic/anti-inflammatory therapy is considered as...

Gas insulated transmission lines (GIL) have a wide application prospect in special occasions such as cross terrain power transmission. Metal particle pollution is an important reason for the low insulation performance of GIL. When micron metal particles (MMPs), which are most common engineering, adhere to insulators or high-voltage electrodes, will be reduced. Based on that, this paper mainly s...

Objective. Although angiotensin II-mediated inflammation and extracellular matrix accumulation are considered to be associated with the progression of diabetic nephropathy, these processes have not yet been sufficiently clarified. The objective of this study was to determine whether the correction of the abnormal renal expression of MMPs and its inhibitors (MMPs/TIMPs) and cytokines following t...

Matrix metalloproteases (MMPs) are crucial components of a complex and dynamic network of proteases. With a wide range of potential substrates, their production and activity are tightly controlled by a combination of signalling events, zymogen activation, post-translational modifications and extracellular inhibition. Slight imbalances may result in the initiation or progression of specific dise...

The leading complication of total joint replacement is periprosthetic osteolysis, which often results in aseptic loosening of the implant, leading to revision surgery. Extracellular matrix degradation and connective tissue remodeling around implants have been considered as major biological events in the periprosthetic loosening. Critical mediators of wear particle-induced inflammatory osteolysi...