Quantification and comparison of TLR2 activity in monocyte-derived macrophages of zebu and crossbred cattle

Document Type : Full paper (Original article)

Authors

Division of Animal Genetics, ICAR-Indian Veterinary Research Institute, Izatnagar-243122, Bareilly, Uttar Pradesh, India

Abstract

The present study was conducted to quantify and compare TLR2 (toll-like receptor 2) activity in monocyte-derived macrophages of zebu (Tharparkar) and crossbred (Holstein-Friesian × Jersey × Brown Swiss × Hariana) cattle. The cells were either induced with Pam3CSK4 or kept as control. The TLR2 activity was quantified in terms of IκB-α inhibitory subunit (NFKBIA) messenger RNA (mRNA) copies using real-time, one-step reverse transcription-polymerase chain reaction (RT-PCR). Toll-like receptor 2 activity of induced cells was in the range of 1060421 ± 477937 (n=3) to 3514715 ± 290222 (n=3) copies for Tharparkar cattle (n=7) and in the range of 1365532 ± 47243 (n=3) to 3016510 ± 172340 (n=3) copies for the crossbred cattle (n=7). For uninduced cells, this activity was within the range of 117 ± 51 (n=3) to 293 ± 103 (n=3) copies for the Thraparkar cattle (n=7), and in the range of 182 ± 122 (n=3) to 296 ± 88 (n=3) copies for the crossbred cattle (n=7). The TLR2 activity of induced cells in both groups was found to be significantly higher than that of the respective uninduced cells (P<0.0001). Furthermore, upon comparison, TLR2 activities of induced and uninduced cells of the Tharparkar were not found to be significantly different from those of the crossbred cattle (P=0.8154 and P=0.6670). In the present study, we have quantified and compared, for the first time, TLR2 activity in terms of NFKBIA mRNA copies in monocyte-derived macrophages of Tharparkar and crossbred cattle and found that both have equivalent TLR2 activity.

Keywords

References

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