인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
Farmed Atlantic salmon are subjected to different stressors during management routines, leading to prolonged elevated cortisol levels in the blood, a hallmark of chronic stress responses. In this study, we investigate how dexamethasone, an agonist for glucocorticoid receptors (GRs), and cortisol, an endogenous glucocorticoid, regulate gene expression in isolated A. salmon red blood cells (RBCs). Salmonid RBCs express GR genes at high levels. Transcriptional analysis revealed that dexamethasone significantly upregulated 156 genes, and led to > 100-fold induction of the genes FKBP prolyl isomerase 5 (fkbp5), the Krueppel-like factor 9 (klf9), and the DNA damage-inducible transcript 4 (ddit4). The significant upregulation of fkbp5 persisted for up to two weeks post RBC stimulation, indicating its potential as a biomarker candidate for chronic stress exposure. We compared ex vivo transcriptional responses in RBCs with responses in blood cells from A. salmon injected intraperitoneally with hydrocortisone, and found that ddit4 may be the most promising biomarker candidate for stress response in vivo. Dexamethasone and cortisol also downregulated antiviral and proteasome genes triggered by double-stranded RNA in RBCs. The results indicate that glucocorticoids have a profound effect on gene expression and putatively alter functions of A. salmon RBCs, and particularly block the antiviral response.
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.