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Xia, Y., Midoun, S.Z., Xu, Z., Hong, L. (2015). Heixuedian (heix), a potential melanotic tumor suppressor gene, exhibits specific spatial and temporal expression pattern during drosophila hematopoiesis.  Dev. Biol. 398(2): 218--230.
FlyBase ID
FBrf0227418
Publication Type
Research paper
Abstract
The Drosophila heixuedian (heix) is the ortholog of human UBIAD1 gene (a.k.a TERE1). The protein product of UBIAD1/heix has multiple enzymatic activities, including the vitamin K2 and the non-mitochondrial CoQ10 biosynthesis. However, the expression pattern of UBIAD1/Heix during metazoan development has not been systematically studied. In this paper, we found that loss of function of heix resulted in pathological changes of larval hematopoietic system, including lymph gland hypertrophy, hemocyte overproliferation and aberrant differentiation, and melanin mass formation. Overexpression of heix cDNA under the tubulin Gal4 driver rescued the above hematopoietic defects. Interestingly, Heix was specifically expressed in plasmatocyte/macrophage lineage in srp driven EGFP positive cells on the head mesoderm during embryogenesis, while it was highly expressed in crystal cells in the primary lobes of the third instar larval lymph gland. Using qRT-PCR analysis, loss of function of heix caused aberrant activation of multiple hemocyte proliferation-related as well as immune-related pathways, including JAK/STAT pathway, Ras/MAPK pathway, IMD pathway and Toll pathway. These data suggested that heix is a potential melanotic tumor suppressor gene and plays a pivotal role in both hemocytes proliferation and differentiation in Drosophila.
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    Language of Publication
    English
    Additional Languages of Abstract
    Parent Publication
    Publication Type
    Journal
    Abbreviation
    Dev. Biol.
    Title
    Developmental Biology
    Publication Year
    1959-
    ISBN/ISSN
    0012-1606
    Data From Reference
    Aberrations (1)
    Alleles (10)
    Genes (31)
    Natural transposons (1)
    Insertions (2)
    Experimental Tools (1)
    Transgenic Constructs (6)