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Hematopoietic plasticity mapped in Drosophila and other insects
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- Hultmark, Dan, 1949- (author)
- Umeå universitet,Institutionen för molekylärbiologi (Medicinska fakulteten)
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- Andó, István (author)
- Biological Research Centre, Institute of Genetics, Innate Immunity Group, Eötvös Loránd Research Network, Szeged, Hungary
- (creator_code:org_t)
- eLife Sciences Publications, 2022
- 2022
- English.
- In: eLIFE. - : eLife Sciences Publications. - 2050-084X. ; 11
- Research review (peer-reviewed)
Abstract
Subject headings
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- Hemocytes, similar to vertebrate blood cells, play important roles in insect development and immunity, but it is not well understood how they perform their tasks. New technology, in particular single-cell transcriptomic analysis in combination with Drosophila genetics, may now change this picture. This review aims to make sense of recently published data, focusing on Drosophila melanogaster and comparing to data from other drosophilids, the malaria mosquito, Anopheles gambiae, and the silkworm, Bombyx mori. Basically, the new data support the presence of a few major classes of hemocytes: (1) a highly heterogenous and plastic class of professional phagocytes with many functions, called plasmatocytes in Drosophila and granular cells in other insects. (2) A conserved class of cells that control melanin deposition around parasites and wounds, called crystal cells in D. melanogaster, and oenocytoids in other insects. (3) A new class of cells, the primocytes, so far only identified in D. melanogaster. They are related to cells of the so-called posterior signaling center of the larval hematopoietic organ, which controls the hematopoiesis of other hemocytes. (4) Different kinds of specialized cells, like the lamellocytes in D. melanogaster, for the encapsulation of parasites. These cells undergo rapid evolution, and the homology relationships between such cells in different insects are uncertain. Lists of genes expressed in the different hemocyte classes now provide a solid ground for further investigation of function.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Cell- och molekylärbiologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Cell and Molecular Biology (hsv//eng)
- NATURVETENSKAP -- Biologi -- Immunologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Immunology (hsv//eng)
Keyword
- cell biology
- chromosomes
- Drosophila
- gene expression
- hematopoiesis
- hemocytes
- immunity
- lepidoptera
- mosquitoes
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