Insights into the functional properties of thioredoxin domain-containing protein 12 (TXNDC12): Antioxidant activity, immunological expression, and wound-healing effect in yellowtail clownfish (Amphiprion clarkii)

被引：0
作者：
Dilshan, M. A. H. [1 ,2 ]
Omeka, W. K. M. [1 ,2 ,3 ]
Udayantha, H. M. V. [1 ,2 ,3 ]
Liyanage, D. S. [1 ,2 ,3 ]
Rodrigo, D. C. G. [1 ,2 ]
Warnakula, W. A. D. L. R. [1 ,2 ]
Hanchapola, H. A. C. R. [1 ,2 ]
Kodagoda, Y. K. [1 ,2 ]
Ganepola, G. A. N. P. [1 ,2 ]
Kim, Jeongeun [1 ,2 ]
Kim, Gaeun [1 ,2 ]
Lee, Jihun [1 ,2 ]
Jeong, Taehyug [1 ,2 ,3 ]
Lee, Sukkyoung [1 ,2 ,3 ]
Wan, Qiang [1 ,2 ,3 ]
Lee, Jehee [1 ,2 ,3 ]
机构：
[1] Jeju Natl Univ, Dept Marine Life Sci, Jeju 63243, South Korea
[2] Jeju Natl Univ, Ctr Genom Select Korean Aquaculture, Jeju 63243, South Korea
[3] Jeju Natl Univ, Marine Life Res Inst, Jeju 63333, South Korea
来源：
FISH & SHELLFISH IMMUNOLOGY | 2024年 / 154卷
关键词：
Thioredoxin; Thioredoxin domain-containing protein 12; Antioxidant; Wound healing; Yellowtail clownfish ( Amphiprion clarkii ); OXIDATIVE STRESS; NITRIC-OXIDE; REDOX REGULATION; MODULATION; REDUCTION; RESPONSES; SYSTEM; ROLES; CELLS; GENE;
D O I：
10.1016/j.fsi.2024.109939
中图分类号：
S9 [水产、渔业];
学科分类号：
0908 ;
摘要：
Thioredoxin domain-containing protein 12 (TXNDC12) is a member of the thioredoxin-like superfamily that contributes to various thiol-dependent metabolic activities in all living organisms. In this research, the TXNDC12 gene from yellowtail clownfish (Amphiprion clarkii) was structurally characterized using in silico tools, assessed for immunological expression, and evaluated for biological activity using recombinant protein and cellular overexpression. The deduced coding sequence of AcTXNDC12 comprised a 522-bp nucleotide, encoding 173 amino acids with a predicted molecular mass of 19.198 kDa. The AcTXNDC12 protein consists of a66WCGAC70 active motif and a170GDEL173 signature. The highest tissue-specific expression of AcTXNDC12 was observed in the brain tissue, with significant modulation observed in the blood and gill tissues following stimulation of polyinosinic: polycytidylic acid, lipopolysaccharides (LPS), and Vibrio harveyi. In functional assays, recombinant AcTXNDC12 protein (rAcTXNDC12) showed insulin disulfide reduction activity, 2,2 '-azino-di-(3-ethylbenzthiazoline sulfonic acid) decolorization antioxidant capacity, and ferric (Fe3+) reducing antioxidant potential. Additionally, a significant reduction in nitric oxide production was observed in AcTXNDC12overexpressed RAW 264.7 cells upon LPS stimulation. Furthermore, genes associated with the regulation of oxidative stress, including nuclear factor erythroid 2-related factor 2 (Nrf2), catalase (Cat), peroxiredoxin 1 (Prx1), and ribonucleotide reductase catalytic subunit M1 (Rrm1) were significantly upregulated in fathead minnow cells overexpressing AcTXNDC12 in response to H2O2 treatment. The scratch wound healing assay demonstrated tissue regeneration and cell proliferation ability upon AcTXNDC12 overexpression. Altogether, the current study elucidated the antioxidant activity, immunological importance, and wound-healing effect of the AcTXNDC12 gene in yellowtail clownfish, providing valuable insights for advancing the aquaculture of A. clarkii fish.
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页数：17
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