» Articles » PMID: 27776119

Fetus-derived DLK1 is Required for Maternal Metabolic Adaptations to Pregnancy and is Associated with Fetal Growth Restriction

Abstract

Pregnancy is a state of high metabolic demand. Fasting diverts metabolism to fatty acid oxidation, and the fasted response occurs much more rapidly in pregnant women than in non-pregnant women. The product of the imprinted DLK1 gene (delta-like homolog 1) is an endocrine signaling molecule that reaches a high concentration in the maternal circulation during late pregnancy. By using mouse models with deleted Dlk1, we show that the fetus is the source of maternal circulating DLK1. In the absence of fetally derived DLK1, the maternal fasting response is impaired. Furthermore, we found that maternal circulating DLK1 levels predict embryonic mass in mice and can differentiate healthy small-for-gestational-age (SGA) infants from pathologically small infants in a human cohort. Therefore, measurement of DLK1 concentration in maternal blood may be a valuable method for diagnosing human disorders associated with impaired DLK1 expression and to predict poor intrauterine growth and complications of pregnancy.

Citing Articles

The influence of fetal sex on antenatal maternal glucose and insulin dynamics.

Mullins T, Gallo L, McIntyre H, Barrett H Front Clin Diabetes Healthc. 2025; 5:1351317.

PMID: 39742292 PMC: 11685148. DOI: 10.3389/fcdhc.2024.1351317.


Genome-wide DNA methylation and gene expression in human placentas derived from assisted reproductive technology.

Auvinen P, Vehvilainen J, Ramo K, Laukkanen I, Marjonen-Lindblad H, Wallen E Commun Med (Lond). 2024; 4(1):267.

PMID: 39702541 PMC: 11659305. DOI: 10.1038/s43856-024-00694-6.


Enrichment of trimethyl histone 3 lysine 4 in the Dlk1 and Grb10 genes affects pregnancy outcomes due to dietary manipulation of excess folic acid and low vitamin B12.

Sapehia D, Mahajan A, Singh P, Kaur J Biol Res. 2024; 57(1):85.

PMID: 39543691 PMC: 11562088. DOI: 10.1186/s40659-024-00557-3.


Dlk1 is a novel adrenocortical stem/progenitor cell marker that predicts malignancy in adrenocortical carcinoma.

Mariniello K, Pittaway J, Altieri B, Borges K, Hadjidemetriou I, Ribeiro C bioRxiv. 2024; .

PMID: 39229217 PMC: 11370565. DOI: 10.1101/2024.08.22.609117.


A co-ordinated transcriptional programme in the maternal liver supplies long chain polyunsaturated fatty acids to the conceptus using phospholipids.

Amarsi R, Furse S, Cleaton M, Maurel S, Mitchell A, Ferguson-Smith A Nat Commun. 2024; 15(1):6767.

PMID: 39117683 PMC: 11310303. DOI: 10.1038/s41467-024-51089-z.


References
1.
Raghunandan R, Ruiz-Hidalgo M, Jia Y, Ettinger R, Rudikoff E, Riggins P . Dlk1 influences differentiation and function of B lymphocytes. Stem Cells Dev. 2008; 17(3):495-507. PMC: 3189718. DOI: 10.1089/scd.2007.0102. View

2.
Malik N, Carter N, Murray J, Scaramuzzi R, Wilson C, Stock M . Leptin requirement for conception, implantation, and gestation in the mouse. Endocrinology. 2001; 142(12):5198-202. DOI: 10.1210/endo.142.12.8535. View

3.
Schrey S, Wurst U, Ebert T, Kralisch S, Drewlo S, Stepan H . The adipokine preadipocyte factor-1 is downregulated in preeclampsia and expressed in placenta. Cytokine. 2015; 75(2):338-43. DOI: 10.1016/j.cyto.2015.07.021. View

4.
Smith G . Researching new methods of screening for adverse pregnancy outcome: lessons from pre-eclampsia. PLoS Med. 2012; 9(7):e1001274. PMC: 3409135. DOI: 10.1371/journal.pmed.1001274. View

5.
El-Kasti M, Christian H, Huerta-Ocampo I, Stolbrink M, Gill S, Houston P . The pregnancy-induced increase in baseline circulating growth hormone in rats is not induced by ghrelin. J Neuroendocrinol. 2008; 20(3):309-22. DOI: 10.1111/j.1365-2826.2008.01650.x. View