schistosomiasis/protease

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Impairment of intestinal barrier and secretory function as well as egg excretion during intestinal schistosomiasis occur independently of mouse mast cell protease-1.

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Deposition of Schistosoma mansoni eggs in the intestinal mucosa is associated with recruitment of mucosal mast cells (MMC) expressing mouse mast cell protease-1 (mMCP-1). We investigated the involvement of mMCP-1 in intestinal barrier disruption and egg excretion by examining BALB/c mice lacking

Rapid induction of IgE responses to a worm cysteine protease during murine pre-patent schistosome infection.

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BACKGROUND During the pre-patent stage of infection, juvenile Schistosoma blood flukes co-opt signals from the adaptive immune system to facilitate parasite development, but the types of responses that are induced at this early stage of infection, and the parasite antigens they target, have not been

Overview on cysteine protease inhibitors as chemotherapy for Schistosomiasis mansoni in mice and also its effect on the parasitological and immunological profile.

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The present study evaluated the use of 3 types of Cysteine Protease Inhibitors (CPIs) with praziquantel (PZQ) as chemotherapy against schistosomiasis mansoni in mice. All groups were going to assessment of fluromethylketone (FMK), Vinyl Sulfone (VS) and Sodium Nitro Prussid (SNP) by measurement of

Low MBL-associated serine protease 2 (MASP-2) levels correlate with urogenital schistosomiasis in Nigerian children.

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OBJECTIVE The human mannose-binding lectin (MBL) and ficolins (FCN) are involved in pathogen recognition in the first line of defence. They support activation of the complement lectin cascade in the presence of MBL-associated serine protease 2 (MASP-2), a protein that cleaves the C4 and C2

Schistosomiasis mansoni: novel chemotherapy using a cysteine protease inhibitor.

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BACKGROUND Schistosomiasis is a chronic, debilitating parasitic disease infecting more than 200 million people and is second only to malaria in terms of public health importance. Due to the lack of a vaccine, patient therapy is heavily reliant on chemotherapy with praziquantel as the World Health

A secreted schistosome cathepsin B1 cysteine protease and acute schistosome infection induce a transient T helper 17 response.

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The natural history of schistosome infection in the mammalian host is determined by CD4+ T helper responses mounted against different parasite life cycle stages. A T helper 2 (TH2) response to schistosome eggs is required for host survival and establishment of chronic infection. However, a TH2

Peptides Derived of Kunitz-Type Serine Protease Inhibitor as Potential Vaccine Against Experimental Schistosomiasis.

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Schistosomiasis is a significant public health problem in sub-Saharan Africa, China, Southeast Asia, and regions of South and Central America affecting about 189 million people. Kunitz-type serine protease inhibitors have been identified as important players in the interaction of other flatworm

Species-Specific Serological Detection for Schistosomiasis by Serine Protease Inhibitor (SERPIN) in Multiplex Assay.

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BACKGROUND Both Schistosoma mansoni and Schistosoma haematobium cause schistosomiasis in sub-Saharan Africa. We assessed the diagnostic value of selected Schistosoma antigens for the development of a multiplex serological immunoassay for sero-epidemiological surveillance. RESULTS Diagnostic ability

Kunitz-type protease inhibitor as a vaccine candidate against schistosomiasis mansoni.

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OBJECTIVE The aim of this study was to develop a vaccine against schistosomiasis, which is a major challenge due to the complex lifecycle of the causative schistosome parasite. METHODS SmKI-1 is a 16-kDa Kunitz-type protease inhibitor present in the excretory-secretory products and tegument of adult

Granuloma collagenase and EDTA-sensitive neutral protease production in hepatic murine schistosomiasis.

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Mice infected with Schistosoma mansoni represent a model for study of hepatic fibrosis in humans. Production of trypsin-activatable inactive collagenase and EDTA-sensitive neutral protease was measured in the culture medium in which granuloma explants or primary cultures were maintained. Collagenase

Proteomic Analysis on Cercariae and Schistosomula in Reference to Potential Proteases Involved in Host Invasion of Schistosoma japonicum Larvae.

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Schistosomiasis is a parasitic zoonosis posing great threat to human health. The infection is acquired by larval cercariae penetrating host skin and transforming into juveniles, schistosomula. Proteolytic enzymes secreted from the cercarial acetabular glands are known to aid to the skin penetration,

Differential use of protease families for invasion by schistosome cercariae.

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Schistosomes are parasitic platyhelminths (flatworms) of birds and mammals. As a parasitic disease of humans, schistosomiasis ranks second only to malaria in global importance. Schistosome larvae (cercariae) must invade and penetrate skin as an initial step to successful infection of the vertebrate

Schistosoma japonicum: efficient and rapid purification of the tetraspanin extracellular loop 2, a potential protective antigen against schistosomiasis in mammalian.

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The extracellular loop 2 of a tetraspanin from Schistosoma japonicum (Sj-TSP-2) is homologous to Schistosoma mansoni TSP-2. In our initial study, Sj-TSP-2 is an identical antigen against schistosomiasis caused by S. japonicum. Through the pET32 vector system and nickel (Ni)-absorbed chelating

Serine protease and phenoloxidase activities in hemocytes of Biomphalaria glabrata snails with varying susceptibility to infection with the parasite Schistosoma mansoni.

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The snail Biomphalaria glabrata possesses hemocytes, which are supposed to interact with the larval stages of the human parasite Schistosoma mansoni. We describe trypsin-like serine protease(s) and phenoloxidase activities in lysates from these hemocytes. Both enzymes have activity optima around pH

Detection of alpha 2-macroglobulin, alpha 1-protease inhibitor, and neutral protease-antiprotease complexes within liver granulomas of Schistosoma mansoni-infected mice.

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In schistosomiasis mansoni the parasite egg-induced granulomatous tissue inflammations resolve by fibrosis. Intralesional collagen synthesis and deposition are influenced by collagenase, elastase activity that is diminished at the chronic stage of the disease. To determine the cause of diminished

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