Genome-Wide Integrative Transcriptional Profiling Identifies Age-Associated Signatures in Dogs

Mammals experience similar stages of embryonic development, birth, infancy, youth, adolescence, maturity, and senescence. While embryonic developmental processes have been extensively researched, many molecular mechanisms regulating the different life stages after birth, such as aging, remain unreso...

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Main Authors: Hyun Seung Kim, Subin Jang, Jaemin Kim
Format: Article
Language:English
Published: MDPI AG 2023-05-01
Series:Genes
Subjects:
Online Access:https://www.mdpi.com/2073-4425/14/6/1131
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author Hyun Seung Kim
Subin Jang
Jaemin Kim
author_facet Hyun Seung Kim
Subin Jang
Jaemin Kim
author_sort Hyun Seung Kim
collection DOAJ
description Mammals experience similar stages of embryonic development, birth, infancy, youth, adolescence, maturity, and senescence. While embryonic developmental processes have been extensively researched, many molecular mechanisms regulating the different life stages after birth, such as aging, remain unresolved. We investigated the conserved and global molecular transitions in transcriptional remodeling with age in dogs of 15 breeds, which revealed that genes underlying hormone level regulation and developmental programs were differentially regulated during aging. Subsequently, we show that the candidate genes associated with tumorigenesis also exhibit age-dependent DNA methylation patterns, which might have contributed to the tumor state through inhibiting the plasticity of cell differentiation processes during aging, and ultimately suggesting the molecular events that link the processes of aging and cancer. These results highlight that the rate of age-related transcriptional remodeling is influenced not only by the lifespan, but also by the timing of critical physiological milestones.
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spelling doaj.art-4d4c5eca52a349cabc30124d6fd433052023-11-18T10:33:14ZengMDPI AGGenes2073-44252023-05-01146113110.3390/genes14061131Genome-Wide Integrative Transcriptional Profiling Identifies Age-Associated Signatures in DogsHyun Seung Kim0Subin Jang1Jaemin Kim2Division of Applied Life Science (BK21 Four), Gyeongsang National University, Jinju 52828, Republic of KoreaDivision of Applied Life Science (BK21 Four), Gyeongsang National University, Jinju 52828, Republic of KoreaDivision of Applied Life Science (BK21 Four), Gyeongsang National University, Jinju 52828, Republic of KoreaMammals experience similar stages of embryonic development, birth, infancy, youth, adolescence, maturity, and senescence. While embryonic developmental processes have been extensively researched, many molecular mechanisms regulating the different life stages after birth, such as aging, remain unresolved. We investigated the conserved and global molecular transitions in transcriptional remodeling with age in dogs of 15 breeds, which revealed that genes underlying hormone level regulation and developmental programs were differentially regulated during aging. Subsequently, we show that the candidate genes associated with tumorigenesis also exhibit age-dependent DNA methylation patterns, which might have contributed to the tumor state through inhibiting the plasticity of cell differentiation processes during aging, and ultimately suggesting the molecular events that link the processes of aging and cancer. These results highlight that the rate of age-related transcriptional remodeling is influenced not only by the lifespan, but also by the timing of critical physiological milestones.https://www.mdpi.com/2073-4425/14/6/1131agingdogtranscriptomemethylomeepigeneticsdifferentially expressed genes
spellingShingle Hyun Seung Kim
Subin Jang
Jaemin Kim
Genome-Wide Integrative Transcriptional Profiling Identifies Age-Associated Signatures in Dogs
Genes
aging
dog
transcriptome
methylome
epigenetics
differentially expressed genes
title Genome-Wide Integrative Transcriptional Profiling Identifies Age-Associated Signatures in Dogs
title_full Genome-Wide Integrative Transcriptional Profiling Identifies Age-Associated Signatures in Dogs
title_fullStr Genome-Wide Integrative Transcriptional Profiling Identifies Age-Associated Signatures in Dogs
title_full_unstemmed Genome-Wide Integrative Transcriptional Profiling Identifies Age-Associated Signatures in Dogs
title_short Genome-Wide Integrative Transcriptional Profiling Identifies Age-Associated Signatures in Dogs
title_sort genome wide integrative transcriptional profiling identifies age associated signatures in dogs
topic aging
dog
transcriptome
methylome
epigenetics
differentially expressed genes
url https://www.mdpi.com/2073-4425/14/6/1131
work_keys_str_mv AT hyunseungkim genomewideintegrativetranscriptionalprofilingidentifiesageassociatedsignaturesindogs
AT subinjang genomewideintegrativetranscriptionalprofilingidentifiesageassociatedsignaturesindogs
AT jaeminkim genomewideintegrativetranscriptionalprofilingidentifiesageassociatedsignaturesindogs