Abstract:
:The effects of stress on immune activity and growth in early vertebrates have not been studied in detail. The present study used fine flounder (Paralichthys adspersus) skeletal muscle as a model to evaluate molecules involved in the stress response, including the glucocorticoid receptors, foxo1/3, and the target genes of these. Additionally, immune markers (il-1β and tnfα) and effector molecules of atrophy (bnip3, caspase-3, and lc3) were assessed. These molecules were analyzed during periods of long-term fasting and refeeding. During fasting, gene expression related to the stress response and atrophy increased; whereas immune markers were down-regulated. During refeeding, atrophy- and stress-related gene expression significantly decreased. In contrast, immune markers were up-regulated. These results provide novel insight on the control of growth in the skeletal muscle of a non-mammalian species under a stressful condition, suggesting that growth, stress, and immune activity in muscle are closely related and coordinated by orchestrated transcriptional dynamics.
journal_name
Dev Comp Immunoljournal_title
Developmental and comparative immunologyauthors
Valenzuela CA,Escobar D,Perez L,Zuloaga R,Estrada JM,Mercado L,Valdés JA,Molina Adoi
10.1016/j.dci.2015.06.007subject
Has Abstractpub_date
2015-11-01 00:00:00pages
145-57issue
1eissn
0145-305Xissn
1879-0089pii
S0145-305X(15)00131-7journal_volume
53pub_type
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