Faqja 1 nga 523 rezultatet
OBJECTIVE
Elastin is a signature protein of lungs. Increased elastin turnover driven by altered proteolytic activity is an important part of lung tumorigenesis. Elastin-derived fragments have been shown to be pro-tumorigenic, however, little is known regarding the biomarker potential of such elastin
There is a positive feedback loop driving tumorigenesis and tumor growth through coordinated regulation of epigenetics, inflammation, and stemness. Nevertheless, the molecular mechanism linking these processes is not well understood. In this study, we analyzed the correlation of de-ubiquitinases
Improvement in tumor detection using "smart" probes in combination with microcatheter fluorescence thoracoscopy was evaluated in a mouse model. These imaging probes increase in fluorescence intensity after protease activation; cathepsin B is a major activator of the probes used in this study. Lewis
The effect of the protease inhibitors Bowman Birk inhibitor (BBI) and aprotinin on the in vitro clonal growth of two human small cell lung cancer (SCLC) cell lines was investigated. In addition, the effect of BBI on the growth factor processing of proGRP by SCLC cells and on mRNA levels for
The parathyroid hormone-related protein (PTHrP) precursor requires proteolytic processing to generate PTHrP-related peptide products that possess regulatory functions in the control of PTH-like (parathyroid-like) actions and cell growth, calcium transport, and osteoclast activity. Biologically
In the present study, we investigated the effect of alpha 1 protease inhibitor (alpha 1PI) on the production of interleukin-1 alpha (IL-1 alpha, ELISA), IL-1 beta (ELISA), and tumor necrosis factor alpha (TNF alpha, ELISA) by alveolar macrophages (AM) recruited by bronchoalveolar lavage (BAL) from
BACKGROUND
Protease-activated receptor (PAR)-1 and PAR-4 are involved in extracellular matrix invasion and angiogenesis.
METHODS
A series of 60 resected stage IB non-small-cell lung cancers (NSCLCs), including 30 adenocarcinomas (ADCs) and 30 squamous cell carcinomas (SCCs), were processed by
In human lung tumor tissue specimen (n = 73) concentrations of stefins A and B were found to be increased 2.0-fold (p < 0.01) and 1.3-fold (p < 0.01), respectively, as compared to matched normal tissue. Stefin A and B concentrations were higher in primary tumors than in secondary tumors, i.e.
In addition to autoregulating its own expression, transforming growth factor-beta 1 (TGF-beta1) also regulates the production of proteases, protease inhibitors and extracellular matrix proteins. To investigate the relationship between plasminogen activator (PA), plasminogen activator inhibitor-1
BACKGROUND
In lung cancer, uPA, its receptor (uPAR), and the inhibitors PAI-1 and PAI-2 of the plasminogen activator family interact with MMP-2 and MMP-9 of the MMP family to promote cancer progression. However, it remains undetermined which of these markers plays the most important role and may be
Sputum obtained from healthy subjects and patients with known lung tumours has been challenged with fluorescent probes for the presence of an active cell surface protease. The mature epithelial cells from healthy patients' sputum lacked ability to bind these fluorescent probes whilst the majority of
OBJECTIVE
To investigate the changes in serum protease and cytokine in patients with silicosis, tuberculosis, and lung cancer.
METHODS
Serum samples of patients with silicosis, tuberculosis, and lung cancer were collected. The variation trends of the expression of granzyme A, cathepsin G,
OBJECTIVE
Insight into clinical response to platinum-based chemotherapy (PBC) in non-small-cell lung cancer (NSCLC).
METHODS
Matched tumor and nontumor lung tissues from PBC-treated NSCLC patients (four nonresponders and four responders) and tumor tissue from an independent test set (four
BACKGROUND
Protease activated receptor (PAR)-1 expression is increased in a variety of tumor cells. In preclinical models, tumor cell PAR-1 appeared to be involved in the regulation of lung tumor growth and metastasis; however the role of PAR-1 in the lung tumor microenvironment, which is emerging
Protease serine S1 family member 8 (PRSS8), a membrane-anchored serine protease, has been reported to be involved in the development of several human cancers. However, the role of PRSS8 in non-small cell lung cancer (NSCLC) pathogenesis remains unclear. The objective of this study was to investigate