Abstract
Background
The purpose of the experiment was to explore the localization and seasonal expression of extracellular signal regulated kinase (ERK) in the colonic tissue of wild ground squirrels (Spermophilus dauricus).
Methods and results
Hematoxylin–eosin staining, immunohistochemistry, real-time quantitative PCR and Western blotting were used in this experiment. The histological results showed that the diameter of the colon lumen enlarged and the number of glandular cells increased in the non-breeding season. It was found in the immunochemical results that both ERK1/2 and pERK1/2 were expressed in the cytoplasm of goblet cells and intestinal epithelial cells, while pERK1/2 was also expressed in the nucleus of them. The immune localization of both was more obvious in the non-breeding season, especially in intestinal epithelial cells. Real-time quantitative PCR and Western blotting showed that ERK1/2 and pERK1/2 were seasonally highly expressed in the non-breeding season.
Conclusions
The expression of ERK1/2 and pERK1/2 was seasonal changes and had significant increases in the non-breeding season. This study revealed that ERK1/2 had potential roles in the colon to the adaptation of seasonal changes in wild ground squirrels.
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Data availability
All data generated or analyzed during this study are included in this published article.
Code availability
Not applicable.
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Funding
This research work is supported by the Fundamental Research Funds for the Central Universities (2018ZY21), and the National Training Program of Innovation and Entrepreneurship for Undergraduates (S202010022079, G202010022072).
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YS, XY: Participated in sample collection, Performing the experiments, Assisted with all experiments, Analyzing the data, Drafting the manuscript. XZ, JZ: Participated in sample collection, Performing the experiments. YC: Participated in sample collection. FG, HZ: Assisted with all experiments, Helped revising the manuscript. YH: Helped revising the manuscript. QW, ZY*: Designed, Supervised the study, Revised manuscript.
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All animal procedures were approved by the Policy on the Care and Use of Animals by the Ethical Committee, Beijing Forestry University and the Department of Agriculture of Hebei Province, China (JNZF11/2007).
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Song, Y., Yang, X., Zhang, X. et al. Seasonal expression of extracellular signal regulated kinases in the colon of wild ground squirrels (Spermophilus dauricus). Mol Biol Rep 49, 2209–2215 (2022). https://doi.org/10.1007/s11033-021-07042-0
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DOI: https://doi.org/10.1007/s11033-021-07042-0