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Moraes DD, Mousovich-Neto F, Cury SS, Oliveira J, Souza JDS, Freire PP, Dal-Pai-Silva M, Mori MADS, Fernandez GJ, Carvalho RF. The Transcriptomic Landscape of Age-Induced Changes in Human Visceral Fat and the Predicted Omentum-Liver Connectome in Males. Biomedicines 2023; 11:biomedicines11051446. [PMID: 37239116 DOI: 10.3390/biomedicines11051446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 04/15/2023] [Accepted: 04/24/2023] [Indexed: 05/28/2023] Open
Abstract
Aging causes alterations in body composition. Specifically, visceral fat mass increases with age and is associated with age-related diseases. The pathogenic potential of visceral fat accumulation has been associated with its anatomical location and metabolic activity. Visceral fat may control systemic metabolism by secreting molecules that act in distal tissues, mainly the liver, through the portal vein. Currently, little is known about age-related changes in visceral fat in humans. Aiming to identify molecular and cellular changes occurring with aging in the visceral fat of humans, we analyzed publicly available transcriptomic data of 355 omentum samples from the Genotype-Tissue Expression portal (GTEx) of 20-79-year-old males and females. We identified the functional enrichment of genes associated with aging, inferred age-related changes in visceral fat cellularity by deconvolution analysis, profiled the senescence-associated secretory phenotype of visceral adipose tissue, and predicted the connectivity of the age-induced visceral fat secretome with the liver. We demonstrate that age induces alterations in visceral fat cellularity, synchronous to changes in metabolic pathways and a shift toward a pro-inflammatory secretory phenotype. Furthermore, our approach identified candidates such as ADIPOQ-ADIPOR1/ADIPOR2, FCN2-LPR1, and TF-TFR2 to mediate visceral fat-liver crosstalk in the context of aging. These findings cast light on how alterations in visceral fat with aging contribute to liver dysfunction and age-related disease etiology.
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Affiliation(s)
- Diogo de Moraes
- Department of Structural and Functional Biology, Institute of Biosciences of Botucatu, Sao Paulo State University, UNESP, Botucatu 18618-689, SP, Brazil
- Department of Biochemistry and Tissue Biology, University of Campinas, Monteiro Lobato St., 255, Campinas 13083-862, SP, Brazil
| | - Felippe Mousovich-Neto
- Department of Biochemistry and Tissue Biology, University of Campinas, Monteiro Lobato St., 255, Campinas 13083-862, SP, Brazil
| | - Sarah Santiloni Cury
- Department of Structural and Functional Biology, Institute of Biosciences of Botucatu, Sao Paulo State University, UNESP, Botucatu 18618-689, SP, Brazil
| | - Jakeline Oliveira
- Department of Structural and Functional Biology, Institute of Biosciences of Botucatu, Sao Paulo State University, UNESP, Botucatu 18618-689, SP, Brazil
| | - Jeferson Dos Santos Souza
- Department of Structural and Functional Biology, Institute of Biosciences of Botucatu, Sao Paulo State University, UNESP, Botucatu 18618-689, SP, Brazil
| | - Paula Paccielli Freire
- Department of Structural and Functional Biology, Institute of Biosciences of Botucatu, Sao Paulo State University, UNESP, Botucatu 18618-689, SP, Brazil
| | - Maeli Dal-Pai-Silva
- Department of Structural and Functional Biology, Institute of Biosciences of Botucatu, Sao Paulo State University, UNESP, Botucatu 18618-689, SP, Brazil
| | - Marcelo Alves da Silva Mori
- Department of Biochemistry and Tissue Biology, University of Campinas, Monteiro Lobato St., 255, Campinas 13083-862, SP, Brazil
- Obesity and Comorbidities Research Center (OCRC), University of Campinas, Campinas 13083-862, SP, Brazil
- Experimental Medicine Research Cluster (EMRC), University of Campinas, Campinas 13083-862, SP, Brazil
| | - Geysson Javier Fernandez
- Grupo Biologia y Control de Enfermedades Infeciosas (BCEI), Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia (UdeA), Medellín 050010, Colombia
| | - Robson Francisco Carvalho
- Department of Structural and Functional Biology, Institute of Biosciences of Botucatu, Sao Paulo State University, UNESP, Botucatu 18618-689, SP, Brazil
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