Proteomic Analysis of Adipose Tissue During the Last Weeks of Gestation in Pure and Crossbred Large White or Meishan Fetuses Gestated by Sows of Either Breed

Overview

Journal J Anim Sci Biotechnol

Publisher Biomed Central

Date 2018 Apr 6

PMID 29619215

Citations 2

Authors

F Gondret

B Guevel

M C Pere

H Quesnel

Y Billon

E Com

L Canario

I Louveau

L Liaubet

Affiliations

Soon will be listed here.

Abstract

Background: The degree of adipose tissue development at birth may influence neonatal survival and subsequent health outcomes. Despite their lower birth weights, piglets from Meishan sows (a fat breed with excellent maternal ability) have a higher survival rate than piglets from Large White sows (a lean breed). To identify the main pathways involved in subcutaneous adipose tissue maturation during the last month of gestation, we compared the proteome and the expression levels of some genes at d 90 and d 110 of gestation in purebred and crossbred Large White or Meishan fetuses gestated by sows of either breed.

Results: A total of 52 proteins in fetal subcutaneous adipose tissue were identified as differentially expressed over the course of gestation. Many proteins involved in energy metabolism were more abundant, whereas some proteins participating in cytoskeleton organization were reduced in abundance on d 110 compared with d 90. Irrespective of age, 24 proteins differed in abundance between fetal genotypes, and an interaction effect between fetal age and genotype was observed for 13 proteins. The abundance levels of proteins known to be responsive to nutrient levels such as aldolase and fatty acid binding proteins, as well as the expression levels of a key lipogenic enzyme, and , a pivotal transcriptional mediator of glucose-related stimulation of lipogenic genes, were elevated in the adipose tissue of pure and crossbred fetuses from Meishan sows. These data suggested that the adipose tissue of these fetuses had superior metabolic functionality, whatever their paternal genes. Conversely, proteins participating in redox homeostasis and apoptotic cell clearance had a lower abundance in Meishan than in Large White fetuses. Time-course differences in adipose tissue protein abundance were revealed between fetal genotypes for a few secreted proteins participating in responses to organic substances, such as alpha-2-HS-glycoprotein, transferrin and albumin.

Conclusions: These results underline the importance of not only fetal age but also maternal intrauterine environment in the regulation of several proteins in subcutaneous adipose tissue. These proteins may be used to estimate the maturity grade of piglet neonates.

Citing Articles

Plasma H-NMR metabolic and amino acid profiles of newborn piglets from two lines divergently selected for residual feed intake.

Liaubet L, Guilmineau C, Lefort G, Billon Y, Reigner S, Bailly J Sci Rep. 2023; 13(1):7127.

PMID: 37130953 PMC: 10154392. DOI: 10.1038/s41598-023-34279-5.

The maturity in fetal pigs using a multi-fluid metabolomic approach.

Lefort G, Servien R, Quesnel H, Billon Y, Canario L, Iannuccelli N Sci Rep. 2020; 10(1):19912.

PMID: 33199811 PMC: 7670440. DOI: 10.1038/s41598-020-76709-8.

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