Hemocytes of Rhipicephalus sanguineus (Acari: Ixodidae): Characterization, Population Abundance, and Ultrastructural Changes Following Challenge with Leishmania infantum

Journal of Medical Entomology
A P S FeitosaF A Brayner

Abstract

Few studies have examined the cellular immune response of ticks, and further research on the characterization of the hemocytes of ticks is required, particularly on those of Rhipicephalus sanguineus (Latreille) because of the medical and veterinary importance of this tick. The aims of this study were to characterize the morphology and the ultrastructure of the different types of hemocytes of adult R. sanguineus and to determine the population abundance and the ultrastructural changes in the hemocytes of ticks infected with Leishmania infantum. The hemocytes were characterized through light and transmission electron microscopy. Within the variability of circulating cells in the hemolymph of adult R. sanguineus, five cell types were identified, which were the prohemocytes, plasmatocytes, granulocytes, spherulocytes, and adipohemocytes. The prohemocytes were the smallest cells found in the hemolymph. The plasmatocytes had polymorphic morphology with vesicles and cytoplasmic projections. The granulocytes had an elliptical shape with the cytoplasm filled with granules of different sizes and electrodensities. The spherulocytes were characterized by several spherules of uniform shapes and sizes that filled the entire cytoplasm, wherea...Continue Reading

References

May 25, 2002·Histochemistry and Cell Biology·Julián F Hillyer, Bruce M Christensen
Sep 13, 2002·Insect Biochemistry and Molecular Biology·M D Lavine, M R Strand
Mar 28, 2003·Brazilian Journal of Biology = Revista Brasleira De Biologia·J E B SilvaZ L P Simões
Feb 24, 2005·Veterinary Parasitology·Maria Teresa Zanatta CoutinhoPedro Marcos Linardi
Apr 29, 2005·Micron : the International Research and Review Journal for Microscopy·F A BraynerC A Peixoto
Jun 23, 2005·Experimental & Applied Acarology·Barbara Borovicková, Václav Hypsa
May 30, 2008·Frontiers in Bioscience : a Journal and Virtual Library·Daniel E Sonenshine, Wayne L Hynes
Nov 19, 2008·PLoS Neglected Tropical Diseases·Philippe ParolaDidier Raoult
Feb 4, 2010·Parasitology Research·Filipe Dantas-TorresDomenico Otranto
Apr 1, 2010·European Journal of Histochemistry : EJH·V Matozzo, M G Marin
Jan 12, 2011·Parasitology Research·Fabio A ColomboVera L Pereira-Chioccola
May 24, 2011·Parasites & Vectors·Laia Solano-Gallego The LeishVet Group
Aug 9, 2012·Infection, Genetics and Evolution : Journal of Molecular Epidemiology and Evolutionary Genetics in Infectious Diseases·Leonhard SchnittgerDavid A Morrison
Mar 13, 2013·Micron : the International Research and Review Journal for Microscopy·Tatiana SoaresPatrícia Maria Guedes Paiva
Oct 14, 2014·Current Opinion in Insect Science·Julián F Hillyer, Michael R Strand

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Citations

Jun 14, 2019·Frontiers in Physiology·Jéssica FiorottiVânia Rita Elias Pinheiro Bittencourt
Apr 28, 2018·Parasitology Research·Jéssica Fiorotti de PauloVânia Rita Elias Pinheiro Bittencourt
Jul 9, 2017·Cell and Tissue Research·Luis Andrés Arteaga BlancoGustavo Ferreira Martins
Jan 24, 2021·Developmental and Comparative Immunology·Melbourne Rio TalactacTetsuya Tanaka
Mar 20, 2021·Frontiers in Immunology·Andréa C FogaçaSirlei Daffre

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