High- and low-protein gestation diets do not provoke common transcriptional responses representing universal target-pathways in muscle and liver of porcine progeny
Article first published online: 27 NOV 2013
© 2013 Scandinavian Physiological Society. Published by John Wiley & Sons Ltd
Special Issue: Metabolic Programming
Volume 210, Issue 1, pages 202–214, January 2014
How to Cite
Oster, M., Murani, E., Metges, C. C., Ponsuksili, S. and Wimmers, K. (2014), High- and low-protein gestation diets do not provoke common transcriptional responses representing universal target-pathways in muscle and liver of porcine progeny. Acta Physiologica, 210: 202–214. doi: 10.1111/apha.12192
- Issue published online: 13 DEC 2013
- Article first published online: 27 NOV 2013
- Accepted manuscript online: 4 NOV 2013 08:00PM EST
- Manuscript Revised: 30 OCT 2013
- Manuscript Accepted: 30 OCT 2013
- Manuscript Revised: 2 JUL 2013
- Manuscript Received: 16 APR 2013
- German Federal Ministry of Education and Research. Grant Number: FKZ 0315132A
- nutritional programming;
- protein diets;
- swine model;
- transcriptional responses
Maternal diets introduce transcriptional changes in the offspring, highlighting the concept of genetic and physiological plasticity. Our previous analyses investigated stage-dependent transcriptional responses to either maternal high or low protein/carbohydrate ratios in either muscle or liver. Foetal programming is proposed to be mediated by a small number of gatekeeper processes, such as cytoskeleton remodelling and cell-cycle regulation. Here, we conducted an overall analysis of a three-dimensional data set aiming to elucidate, whether there are universally targeted pathways of adaptive transcriptional response to different protein/carbohydrate ratios.
Microarray analyses were performed on liver and skeletal muscle tissue sampled at 94 days post-conception and 1, 28 and 188 days post-natum from offspring (n = 253) of German Landrace gilts that were fed isoenergetic diets containing low, high or adequate protein.
Cluster analyses revealed a hierarchical influence of tissue, ontogenetic stage and diet on transcript levels. Considering results cumulatively over stages, liver showed only marginal transcriptional differences between the dietary groups, whereas considerable differences appeared in muscle. Considering results cumulatively over tissues, nutrition-responsive transcriptions were observed along ontogenesis. Pathway analyses revealed transcript differences in genes related to tissue remodelling, cell-cycle regulation and mitochondrial function.
The factors tissue, stage and diet impact gene expression in a hierarchical order. Porcine liver appeared to be a tissue that was more resilient to nutritional modulation compared with skeletal muscle tissue. Differential modulation between tissues and dietary groups reveal that there are no universal target-pathways of adaptive transcriptional response to different protein diets.