Results 1 to 10 of about 1,269 (154)

Tryptase and tumor angiogenesis [PDF]

open access: yesFrontiers in Oncology
Tryptases represent the most abundant constituent of human mast cells, involved in extracellular matrix degradation, contributing to wound healing and metastasis. Moreover, most recently, it has been demonstrated that tryptase is angiogenic both in vitro
Domenico Ribatti
doaj   +4 more sources

Changes in tryptase levels during cardiac surgery in patients at low risk for allergic reactions

open access: yesMedičnì Perspektivi, 2022
Tryptase test can be used as a clinical marker of mast cell activation. The present study is was aimed to identify variations in serum tryptase levels and their possible relationships with allergic reactions to protamine in low-risk patients undergoing ...
Menekse Oksar   +5 more
doaj   +1 more source

Duodenases are a small subfamily of ruminant intestinal serine proteases that have undergone a remarkable diversification in cleavage specificity.

open access: yesPLoS ONE, 2021
Ruminants have a very complex digestive system adapted for the digestion of cellulose rich food. Gene duplications have been central in the process of adapting their digestive system for this complex food source.
Zhirong Fu   +8 more
doaj   +1 more source

Involvement of tryptase-positive mast cells and angiogenesis in the growth of inflammatory odontogenic cysts

open access: yesBrazilian Oral Research, 2021
: Inflammatory periapical lesions are characterized by infiltration of different immune cell types, the functions of which depend on an effective vascular network. This study aimed to evaluate the mast cells density (MCD) in inflamatory odontogenic cysts
Hugo Costa Neto   +4 more
doaj   +1 more source

Adult mastocytosis: a review of the Santo António Hospital 's experience and an evaluation of World Health Organization criteria for the diagnosis of systemic disease [PDF]

open access: yesAnais Brasileiros de Dermatologia, 2014
BACKGROUND: Mastocytosis is a clonal disorder characterized by the accumulation of abnormal mast cells in the skin and/or in extracutaneous organs. OBJECTIVES: To present all cases of mastocytosis seen in the Porto Hospital Center and evaluate the ...
Iolanda Conde Fernandes   +5 more
doaj   +1 more source

Generation of a new congenic mouse strain with enhanced chymase expression in mast cells. [PDF]

open access: yesPLoS ONE, 2013
Mast cells are effector cells best known for their roles in IgE-associated allergy, but they also play a protective role in defense against pathogens. These cells express high levels of proteases including chymase, tryptase and carboxypeptidase.
Xi Jin   +4 more
doaj   +1 more source

Implantation serine proteinase 1 exhibits mixed substrate specificity that silences signaling via proteinase-activated receptors. [PDF]

open access: yesPLoS ONE, 2011
Implantation S1 family serine proteinases (ISPs) are tryptases involved in embryo hatching and uterine implantation in the mouse. The two different ISP proteins (ISP1 and ISP2) have been detected in both pre- and post-implantation embryo tissue. To date,
Navneet Sharma   +8 more
doaj   +1 more source

Bivalent antibody pliers inhibit β-tryptase by an allosteric mechanism dependent on the IgG hinge

open access: yesNature Communications, 2020
β-tryptases are responsible for most of the proteolytic activity during mast cell activation. Here, the authors develop β-tryptase-inhibiting antibodies and provide structural and biochemical evidence that the bivalency of the antibodies is a ...
Henry R. Maun   +17 more
doaj   +1 more source

A simple, sensitive and safe method to determine the human α/β-tryptase genotype. [PDF]

open access: yesPLoS ONE, 2014
The human tryptase locus on chromosome 16 contains one gene encoding only β-tryptase and another encoding either β-tryptase or the homologous α-tryptase, providing α:β gene ratios of 0:4, 1:3 or 2:2 in the diploid genome, these genotypes being of ...
Quang Trong Le   +3 more
doaj   +1 more source

Expression of mast cell proteases correlates with mast cell maturation and angiogenesis during tumor progression. [PDF]

open access: yesPLoS ONE, 2012
Tumor cells are surrounded by infiltrating inflammatory cells, such as lymphocytes, neutrophils, macrophages, and mast cells. A body of evidence indicates that mast cells are associated with various types of tumors.
Devandir Antonio de Souza   +5 more
doaj   +1 more source

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