Results 191 to 200 of about 5,784 (241)
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Revising lysenin expression of earthworm coelomocytes
Developmental & Comparative Immunology, 2013Lysenin is a species-specific bioactive molecule of Eisenia andrei earthworms. This protein is a potent antimicrobial factor; however its cellular expression and induction against pathogens are still not fully understood. We developed a novel monoclonal antibody against lysenin and applied this molecular tool to characterize its production and ...
Balázs, Opper +4 more
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Coelomocytes as Effector Cells in Eartworm Immunity
Immunological Communications, 1972The results from this study support the following hypothetical mechanism for the rejection of xenografts by Lumbricus. Initially, coelomocytes are attracted to xenografts due to the stimulus of tissue injury. This results in clumping or nodule formation around injured and loose muscle fibers, and a general clumping of baso-phils.
R K, Hostetter, E L, Cooper
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Evaluation of immunotoxicity of iron oxide nanoparticles on coelomocytes of Eisenia fetida
Drug and chemical toxicology (New York, N.Y. 1978)Iron oxide nanoparticles (Fe3O4 NPs) have gained considerable attention due to their diverse applications in various fields. However, concerns about their potential toxic effects on the environment and living organisms have also emerged.
Briska Jifrina Premnath +10 more
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Cytotoxic activity of Holothuria tubulosa (Echinodermata) coelomocytes
Fish & Shellfish Immunology, 2018The immune system of marine invertebrates, in particular that of holothurians, still requires further study. Our research showed that coelomocyte cells contained in the coelomic fluid of the sea cucumber, Holothuria tubulosa, are able to lyse, in vitro, red blood cells in rabbits and sheep.
Mirella Vazzana +7 more
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Earthworm Coelomocyte Immunity
1974The coelomic cavity of Lumbricus terrestris may be considered a hypothetical precursor of the vertebrate immune system. It is in contact with all organs, allowing communication with the coelomic fluid, and with coelomic cells, obviating a specialized lymphatic vascular system.
Russell K. Hostetter, Edwin L. Cooper
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The hemolysin-producer coelomocytes in Holothuria polii
Developmental & Comparative Immunology, 1988Using sodium metrizoate discontinuous gradients, two hemolysin-producer amebocyte populations have been separated from total circulating Holothuria polii coelomocytes. The amebocytes of population 1 are responsible for the production of the calcium-dependent and temperature-labile hemolysin, whereas those of population 2 produce the calcium-independent
C, Canicatti +2 more
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Repeated antigenic challenge induces earthworm coelomocyte proliferation
Immunology Letters, 1992Annelids are able to protect themselves against foreign materials by natural and acquired cellular immunity. The aim of this study was to characterize the kinetic of antigen induced proliferation of earthworm coelomocytes. The proliferative activity of free coelomocytes of Eisenia foetida decreased after a second contact with the same antigen ...
M, Bilej, P, Síma, J, Slípka
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The Biological Bulletin, 2020
While so-called brown bodies were first defined in the 1950s as colorful aggregates of cells in the general cavity of echinoderms and other marine benthic taxa, their distribution and role have not yet been fully clarified.
G. Caulier, J. Hamel, A. Mercier
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While so-called brown bodies were first defined in the 1950s as colorful aggregates of cells in the general cavity of echinoderms and other marine benthic taxa, their distribution and role have not yet been fully clarified.
G. Caulier, J. Hamel, A. Mercier
semanticscholar +1 more source
Arylsulfatase in coelomocytes ofHolothuria polii
Experientia, 1988Holothuria polii coelomocytes possess arylsulfatase enzymes. Two pH optima were found for arylsulfatase activity in cell lysate preparations, one at pH 5.0 and the other at pH 5.8. Both increased after injection of zymosan particles or formalinized sheep red blood cells (fSR-BC), indicating an active role of the enzymes during phagocytosis of ...
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Zoological Science, 2015
Coelomocytes are the first line of immune defense in marine animals. Their distributions are greatly variable even in the close animal species. In this study, we used lectin staining to aid in the classification and purification of these cells for further investigation of SOD distribution among coelomocytes of H. scraba. We classified coelomocytes into
Yanvit, Prompoon +5 more
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Coelomocytes are the first line of immune defense in marine animals. Their distributions are greatly variable even in the close animal species. In this study, we used lectin staining to aid in the classification and purification of these cells for further investigation of SOD distribution among coelomocytes of H. scraba. We classified coelomocytes into
Yanvit, Prompoon +5 more
openaire +2 more sources