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Nguyen LT, Zacchi LF, Schulz BL, Moore SS, Fortes MRS. Adipose tissue proteomic analyses to study puberty in Brahman heifers. J Anim Sci 2018; 96:2392-2398. [PMID: 29788311 DOI: 10.1093/jas/sky128] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Accepted: 05/17/2018] [Indexed: 12/31/2022] Open
Abstract
The adipose tissue has been recognized as an active endocrine organ which can modulate numerous physiological processes such as metabolism, appetite, immunity, and reproduction. The aim of this study was to look for differentially abundant proteins and their biological functions in the abdominal adipose tissue between pre- and postpubertal Brahman heifers. Twelve Brahman heifers were divided into 2 groups and paired on slaughter day. Prepubertal heifers had never ovulated and postpubertal heifers were slaughtered on the luteal phase of their second estrous cycle. After ensuring the occurrence of puberty in postpubertal heifers, abdominal adipose tissue samples were collected. Mass spectrometry proteomic analysis identified 646 proteins and revealed that 171 proteins showed differential abundance in adipose tissue between the pre- and postpuberty groups (adjusted P-value < 0.05). Data are available via ProteomeXchange with identifier PXD009452. Using a list of 51 highly differentially abundant proteins as the target (adjusted P-value < 10-5), we found 14 enriched pathways. The results indicated that gluconeogenesis was enhanced when puberty approached. The metabolism of glucose, lipids, and AA in the adipose tissue mainly participated in oxidation and energy supply for heifers when puberty occurred. Our study also revealed the differentially abundant proteins were enriched for estrogen signaling and PI3K-Akt signaling pathways, which are known integrators of metabolism and reproduction. These results suggest new candidate proteins that may contribute to a better understanding of the signaling mechanisms that relate adipose tissue function to puberty. Protein-protein interaction network analysis identified 4 hub proteins that had the highest degrees of connection: PGK1, ALDH5A1, EEF2, and LDHB. Highly connected proteins are likely to influence the functions of all differentially abundant proteins identified, directly or indirectly.
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Affiliation(s)
- L T Nguyen
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Australia.,Faculty of Biotechnology, Vietnam National University of Agriculture, Hanoi, Vietnam
| | - L F Zacchi
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Australia.,Australian Research Council Training Centre for Biopharmaceutical Innovation, Australian Institute of Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Australia
| | - B L Schulz
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Australia.,Australian Research Council Training Centre for Biopharmaceutical Innovation, Australian Institute of Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Australia
| | - S S Moore
- Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, Brisbane, Australia
| | - M R S Fortes
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Australia
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Fortes MRS, Zacchi LF, Nguyen LT, Raidan F, Weller MMDCA, Choo JJY, Reverter A, Rego JPA, Boe-Hansen GB, Porto-Neto LR, Lehnert SA, Cánovas A, Schulz BL, Islas-Trejo A, Medrano JF, Thomas MG, Moore SS. Pre- and post-puberty expression of genes and proteins in the uterus of Bos indicus heifers: the luteal phase effect post-puberty. Anim Genet 2018; 49:539-549. [PMID: 30192028 DOI: 10.1111/age.12721] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/26/2018] [Indexed: 12/17/2022]
Abstract
Progesterone signaling and uterine function are crucial in terms of pregnancy establishment. To investigate how the uterine tissue and its secretion changes in relation to puberty, we sampled tissue and uterine fluid from six pre- and six post-pubertal Brahman heifers. Post-pubertal heifers were sampled in the luteal phase. Gene expression of the uterine tissue was investigated with RNA-sequencing, whereas the uterine fluid was used for protein profiling with mass spectrometry. A total of 4034 genes were differentially expressed (DE) at a nominal P-value of 0.05, and 26 genes were significantly DE after Bonferroni correction (P < 3.1 × 10-6 ). We also identified 79 proteins (out of 230 proteins) that were DE (P < 1 × 10-5 ) in the uterine fluid. When we compared proteomics and transcriptome results, four DE proteins were identified as being encoded by DE genes: OVGP1, GRP, CAP1 and HBA. Except for CAP1, the other three had lower expression post-puberty. The function of these four genes hypothetically related to preparation of the uterus for a potential pregnancy is discussed in the context of puberty. All DE genes and proteins were also used in pathway and ontology enrichment analyses to investigate overall function. The DE genes were enriched for terms related to ribosomal activity. Transcription factors that were deemed key regulators of DE genes are also reported. Transcription factors ZNF567, ZNF775, RELA, PIAS2, LHX4, SOX2, MEF2C, ZNF354C, HMG20A, TCF7L2, ZNF420, HIC1, GTF3A and two novel genes had the highest regulatory impact factor scores. These data can help to understand how puberty influences uterine function.
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Affiliation(s)
- M R S Fortes
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, QLD 4072, Australia
| | - L F Zacchi
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, QLD 4072, Australia
| | - L T Nguyen
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, QLD 4072, Australia.,Faculty of Biotechnology, Vietnam National University of Agriculture, Gialam, Hanoi, Vietnam
| | - F Raidan
- Animal Science Department, Universidade Federal de Viçosa, Vicosa, Minas Gerais, 36570-900, Brazil
| | - M M D C A Weller
- CSIRO Agriculture and Food, Queensland Bioscience Precinct, Brisbane, QLD 4072, Australia
| | - J J Y Choo
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, QLD 4072, Australia
| | - A Reverter
- Animal Science Department, Universidade Federal de Viçosa, Vicosa, Minas Gerais, 36570-900, Brazil
| | - J P A Rego
- Instituto Federal de Educação, Ciência e Tecnologia do Ceara, Fortaleza, Ceará, 62930-000, Brazil
| | - G B Boe-Hansen
- School of Veterinary Sciences, The University of Queensland, Gatton, QLD 4343, Australia
| | - L R Porto-Neto
- Animal Science Department, Universidade Federal de Viçosa, Vicosa, Minas Gerais, 36570-900, Brazil
| | - S A Lehnert
- Animal Science Department, Universidade Federal de Viçosa, Vicosa, Minas Gerais, 36570-900, Brazil
| | - A Cánovas
- Department of Animal Biosciences, Centre of Genetic Improvement for Livestock, University of Guelph, Guelph, ON, N1G 2W1, Canada
| | - B L Schulz
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, QLD 4072, Australia
| | - A Islas-Trejo
- Department of Animal Science, University of California Davis, Davis, CA, 95616, USA
| | - J F Medrano
- Department of Animal Science, University of California Davis, Davis, CA, 95616, USA
| | - M G Thomas
- Department of Animal Science, Colorado State University, Fort Collins, CO, 80523, USA
| | - S S Moore
- Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, Brisbane, QLD 4072, Australia
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