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

Md Wasim Khan, Xianzhong Ding, Scott J Cotler, Michael Clarke, Brian T Layden
Author Information
  1. Md Wasim Khan: Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, University of Illinois at Chicago, Chicago, Illinois. ORCID
  2. Xianzhong Ding: Department of Pathology, Section of Hepatology, Loyola University Chicago, Maywood, Illinois.
  3. Scott J Cotler: Department of Medicine, Loyola University Chicago, Maywood, Illinois.
  4. Michael Clarke: Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, University of Illinois at Chicago, Chicago, Illinois.
  5. Brian T Layden: Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, University of Illinois at Chicago, Chicago, Illinois.

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.

Keywords

References

J Exp Biol. 2003 Jun;206(Pt 12):2049-57 [PMID: 12756287]
Biochem Biophys Res Commun. 2016 Jun 10;474(4):673-679 [PMID: 27155152]
Nat Commun. 2015 Feb 04;6:6069 [PMID: 25648650]
Curr Diab Rep. 2005 Jun;5(3):171-6 [PMID: 15929862]
Comp Biochem Physiol Part D Genomics Proteomics. 2008 Mar;3(1):96-107 [PMID: 20483211]
Diabetes. 2013 Sep;62(9):3282-91 [PMID: 23903356]
Bioinformatics. 2014 Mar 15;30(6):748-52 [PMID: 24162464]
Biochim Biophys Acta. 1998 Mar 5;1401(3):242-64 [PMID: 9540816]
J Clin Endocrinol Metab. 2001 Feb;86(2):656-8 [PMID: 11158026]
Endocrinology. 2016 Sep;157(9):3452-61 [PMID: 27459389]

Grants

  1. I01 BX003382/BLRD VA
  2. P30 DK020595/NIDDK NIH HHS
  3. R01 DK104927/NIDDK NIH HHS

MeSH Term

Hexokinase
Humans
Immunohistochemistry
Intestinal Mucosa
Intestines
Macrophages, Alveolar
Pancreas

Chemicals

HKDC1 protein, human
Hexokinase