Hydroxyprostaglandin dehydrogenase 15-(NAD) (the HUGO-approved official symbol = HPGD; HGNC ID, HGNC:5154), also called 15-hydroxyprostaglandin dehydrogenase [NAD+], is an enzyme that in humans is encoded by the HPGDgene.[5][6]
15-hydroxy prostaglandin dehydrogenase (HPGD) is an enzyme belongs to the family of oxidoreductases, specifically the short chain dehydrogenase/reductase family 36C member 1.[8] This protein coding gene encodes a member of the short chain alcohol dehydrogenase protein family.[9] HPGD catalyzes the first step in the catabolic pathway of prostaglandins and is therefore responsible for the metabolic/catabolic inactivation of prostaglandins.[10] This inactivation process will oxidize the 15-hydroxyl group of prostaglandins and yield the corresponding 15-keto (oxo) metabolite.[11]
Prostaglandins have a critical role in the signaling pathways that are involved in reproduction (establishment of pregnancy, maintenance of pregnancy, and initiation of labor), blood pressure homeostasis (vasoconstriction and vasodilation), sexual dimorphism, and the immune system (inflammation).[12][13][14][15][16] HPGD has a critical role in the regulation of prostaglandin expression.
HPGD RNA-seq was performed in tissue samples from 95 human individuals representing 27 different tissues to determine tissue-specificity of all protein-coding genes.[17] HPGD was expressed in the adrenal, appendix, bone marrow, brain, colon, duodenum, endometrium, esophagus, fat, gall bladder, heart, kidney, liver, lung, lymph node, ovary, pancreas, placenta, prostate, salivary gland, skin, small intestine, spleen, stomach, testis, thyroid, urinary bladder [1]
15-HPGD has an unappreciated role in the maintenance of pregnancy. In mice, 15-HPDG has been shown to have essential roles in prevention of early termination of pregnancy and maternal morbidity.[18] In 15-HPGD knockout mice, early pregnancy termination was detected. 15-HPGD KO mice that were able to establish pregnancy, lost pregnancy by gestation day ~8.5. At time of pregnancy loss, 15-HPGD KO mice have normal levels of PGE2, increased levels of PGF2α and decreasing levels of serum progesterone.[18]
Ahypomorphic mutation of 15-HPGD causes mice to enter labor ~ a full day earlier when compared to their wild-type littermates, due to elevated circulating PGF2α concentrations. Furthermore, it was concluded that 15-HPGD has a critical role in determining the timing of labor[19]
^Parent, M., Madore, E., MacLaren, L. A., & Fortier, M. A. (2006). 15-Hydroxyprostaglandin dehydrogenase in the bovine endometrium during the oestrous cycle and early pregnancy. Reproduction, 131(3), 573-582.
^Hizaki, H. et al. Abortive expansion of the cumulus and impaired fertility in mice lacking the prostaglandin E receptor subtype EP(2). Proceedings of the National Academy of Sciences of the United States of America 96, 10501–10506 (1999).
^Kobayashi, T. & Narumiya, S. Function of prostanoid receptors: studies on knockout mice. Prostaglandins & other lipid mediators 68-69, 557–573 (2002).
^Lim, H. et al. Multiple female reproductive failures in cyclooxygenase 2-defcient mice. Cell 91, 197–208 (1997).
^Murata, T. et al. Altered pain perception and infammatory response in mice lacking prostacyclin receptor. Nature 388, 678–682 (1997).
^Tomas, D. W. et al. Coagulation defects and altered hemodynamic responses in mice lacking receptors for thromboxane A2. The Journal of clinical investigation 102, 1994–2001 (1998).
^ abRoizen, J. D., Asada, M., Tong, M., Tai, H. H., & Muglia, L. J. (2019). Early pregnancy loss in 15-hydroxyprostaglandin dehydrogenase knockout (15-HPGD−/−) mice due to requirement for embryo 15-HPGD activity. Scientific Reports, 9(1), 1-9.
^Roizen, J. D. (2008). 15-hydroxyprostaglandin dehydrogenase in mouse pregnancy and parturition (Order No. 3316671). Available from Health Research Premium Collection; ProQuest Dissertations & Theses Global. (304442244).
Erwich JJ, Keirse MJ (1992). "Placental localization of 15-hydroxy-prostaglandin dehydrogenase in early and term human pregnancy". Placenta. 13 (3): 223–9. doi:10.1016/0143-4004(92)90037-T. PMID1635910.
Ensor CM, Tai HH (1991). "Site-directed mutagenesis of the conserved tyrosine 151 of human placental NAD(+)-dependent 15-hydroxyprostaglandin dehydrogenase yields a catalytically inactive enzyme". Biochem. Biophys. Res. Commun. 176 (2): 840–5. doi:10.1016/S0006-291X(05)80262-1. PMID2025296.
Krook M, Marekov L, Jörnvall H (1990). "Purification and structural characterization of placental NAD(+)-linked 15-hydroxyprostaglandin dehydrogenase. The primary structure reveals the enzyme to belong to the short-chain alcohol dehydrogenase family". Biochemistry. 29 (3): 738–43. doi:10.1021/bi00455a021. PMID2337593.
Pichaud F, Frendo JL, Delage-Mourroux R, et al. (1995). "Sequence of a novel mRNA coding for a C-terminal-truncated form of human NAD(+)-dependent 15-hydroxyprostaglandin dehydrogenase". Gene. 162 (2): 319–22. doi:10.1016/0378-1119(95)00319-2. PMID7557451.
Sangha RK, Walton JC, Ensor CM, et al. (1994). "Immunohistochemical localization, messenger ribonucleic acid abundance, and activity of 15-hydroxyprostaglandin dehydrogenase in placenta and fetal membranes during term and preterm labor". J. Clin. Endocrinol. Metab. 78 (4): 982–9. doi:10.1210/jcem.78.4.8157731. PMID8157731.
Pichaud F, Delage-Mourroux R, Pidoux E, et al. (1997). "Chromosomal localization of the type-I 15-PGDH gene to 4q34-q35". Hum. Genet. 99 (2): 279–81. doi:10.1007/s004390050354. PMID9048936. S2CID6220018.
Delage-Mourroux R, Pichaud F, Frendo JL, et al. (1997). "Cloning and sequencing of a new 15-hydroxyprostaglandin dehydrogenase related mRNA". Gene. 188 (1): 143–8. doi:10.1016/S0378-1119(96)00800-1. PMID9099873.
Zhou H, Tai HH (1999). "Threonine 188 is critical for interaction with NAD+ in human NAD+-dependent 15-hydroxyprostaglandin dehydrogenase". Biochem. Biophys. Res. Commun. 257 (2): 414–7. doi:10.1006/bbrc.1999.0356. PMID10198228.
Conner CE, Kelly RW, Hume R (2001). "Regulation of prostaglandin availability in human fetal lung by differential localisation of prostaglandin H synthase-1 and prostaglandin dehydrogenase". Histochem. Cell Biol. 116 (4): 313–9. doi:10.1007/s004180100323. PMID11702189. S2CID13199767.
Cho H, Tai HH (2003). "Threonine 11 of human NAD(+)-dependent 15-hydroxyprostaglandin dehydrogenase may interact with NAD(+) during catalysis". Prostaglandins Leukot. Essent. Fatty Acids. 66 (5–6): 505–9. doi:10.1054/plef.2002.0391. PMID12144871.
Tai HH, Ensor CM, Zhou H, Yan F (2002). "Structure and Function of Human Nad+-Linked 15-Hydroxyprostaglandin Dehydrogenase". Eicosanoids and Other Bioactive Lipids in Cancer, Inflammation, and Radiation Injury, 5. Advances in Experimental Medicine and Biology. Vol. 507. pp. 245–50. doi:10.1007/978-1-4615-0193-0_37. ISBN978-1-4613-4960-0. PMID12664592.
