Journal
JOURNAL OF THERMAL BIOLOGY
Volume 94, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jtherbio.2020.102771
Keywords
bta-mir-2898; Frieswal; Sahiwal; Heat stress; HSPs; ant-mir-2898
Funding
- Science and Engineering Research Board, Government of India [YSS/2014/000279]
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Earlier studies identified the role of bta-mir-2898 in bovine. Our earlier study identified that, bta-mir-2898 can be over expressed in crossbred cattle during heat stress. Nevertheless the differential expression of bta-mir-2898 among native vs crossbred cattle during summer stress along with it's correlation with different heat shock proteins (HSPs) is not yet studied. In the present context, we studied the differential expression of bta-mir-2898 among Frieswal (Bos indicus x Bos taurus) and Sahiwal (Bos indicus) breeds of cattle during a range of environmental air temperatures and further investigated the correlation of bta-mir-2898 with different HSPs (HSP70, HSP90, HSP60. HSF, HSPB8 and HSP27). It was observed that, at peak air temperature the relative miRNA expression level (p < 0.05) of bta-mir-2898 was 3.4 +/- 0.41 and 0.79 +/- 0.22 among Frieswal and Sahiwal, respectively. We also observed significant levels (p < 0.05) of mRNA abundance of HSP70, HSP90, HSPB8 and HSP27 among the breeds. In all the cases Sahiwal found to exhibited higher level of HSPs in comparison to Frieswal. Studies revealed that the expression profile of bta-mir-2898 was negatively correlated with the expression of all the HSPs during thermal stress in post anti-mir2898 treated PBMC invitro cultured model originated from both Frieswal and Sahiwal cattle breeds. However, significantly (p < 0.05) higher negative correlations were observed between bta-mir-2898 and HSP70, HSP60 and HSPB8. Present findings highlighted the preliminary role of overexpressed bta-mir-2898 in cattle during thermal stress and its impact on different heat shock proteins.
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