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Studies on the Tissue Localization of HKDC1, a Putative Novel Fifth Hexokinase, in Humans.

ABSTRACT: Hexokinase domain component 1 (HKDC1) is a recently discovered novel protein, which is being promoted as a putative fifth hexokinase. Although the exact role HKDC1 plays in physiology is still unclear, it has been shown to be important during pregnancy in the regulation of glucose homeostasis. In this study, we have comprehensively studied the expression pattern of HKDC1 in the human body. Using human tissue sample, immunohistochemistry imaging was performed. Our studies indicate that the tissues with highest HKDC1 expression were the brush border epithelium of the intestines, parts of the pancreas, and lung alveolar macrophages. Future directions will be to understand the role of this fifth hexokinase in these tissues, with a focus on its relative function as compared with other endogenously expressed hexokinases.

SUBMITTER: Khan MW

PROVIDER: S-EPMC5958357 | biostudies-other | 2018 May

REPOSITORIES: biostudies-other

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Studies on the Tissue Localization of HKDC1, a Putative Novel Fifth Hexokinase, in Humans.

Khan Md Wasim MW Ding Xianzhong X Cotler Scott J SJ Clarke Michael M Layden Brian T BT

The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society 20180205 5

Hexokinase domain component 1 (HKDC1) is a recently discovered novel protein, which is being promoted as a putative fifth hexokinase. Although the exact role HKDC1 plays in physiology is still unclear, it has been shown to be important during pregnancy in the regulation of glucose homeostasis. In this study, we have comprehensively studied the expression pattern of HKDC1 in the human body. Using human tissue sample, immunohistochemistry imaging was performed. Our studies indicate that the tissue ...[more]

PMID: 29401404

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Project description:The complete genome sequence of a novel mononegavirus, Lepeophtheirus salmonis negative-stranded RNA virus 1 (LsNSRV-1), obtained from a salmonid ectoparasite, Lepeophtheirus salmonis was determined. The viral genome contains five open reading frames encoding three unknown proteins (ORF I, II and III), a putative glycoprotein (G), and a large (L) protein. Phylogenetic analysis placed LsNSRV-1 in the recently established mononegaviral family Artoviridae. LsNSRV-1 showed a prevalence of around 97% and was detected in all L. salmonis developmental stages. Viral genomic and antigenomic RNA was localized to nerve tissue, connective tissue, epithelial cells of the gut, subepidermal tissue, exocrine and cement glands, as well as the testis, vas deferens and spermatophore sac of male L. salmonis and the ovaries and oocytes of females. Viral RNA was detected in both the cytoplasm and the nucleoli of infected cells, and putative nuclear export and localization signals were found within the ORF I, III and L proteins, suggesting nuclear replication of LsNSRV-1. RNA interference (RNAi) was induced twice during development by the introduction of a double-stranded RNA fragment of ORF I, resulting in a transient knockdown of viral RNA. A large variation in the knockdown level was seen in adult males and off springs of knockdown animals, whereas the RNA level was more stable in adult females. Together with the localization of viral RNA within the male spermatophore and female oocytes and the amplification of viral RNA in developing embryos, this suggests that LsNSRV-1 is transmitted both maternally and paternally. Small amounts of viral RNA were detected at the site where chalimi were attached to the skin of Atlantic salmon (Salmo salar). However, as the RNAi-mediated treatment did not result in LsNSRV-1-negative offspring and the virus failed to replicate in the tested fish cell cultures, it is difficult to investigate the influence of secreted LsNSRV-1 on the salmon immune response.

Dataset Information

Studies on the Tissue Localization of HKDC1, a Putative Novel Fifth Hexokinase, in Humans.

Publications

Studies on the Tissue Localization of HKDC1, a Putative Novel Fifth Hexokinase, in Humans.

Similar Datasets

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