Abstract
To demonstrate the expression of heat shock proteins (Hsps) in the kidney, 5 kinds of Hsps, namely, Hsp70, Hsp72, Hsp86, Hsp90, and Hsp27, were examined in pigs after 6-h-transports by using western blot analysis. All 5 Hsps were detected in the kidneys of both the transported and control pigs. Hsp expression in the control pigs indicated that Hsps have some physiological functions in addition to stress-response functions. With the exception of Hsp27, a significant reduction was observed in all the levels of Hsps in the kidneys of the transport-stressed pigs after 6 h of transport, particularly in the levels of Hsp70 and Hsp72, which belong to the HSP70 family; and Hsp86 and Hsp90, which belong to the HSP90 family. The results indicate that 6-h-transports are not only related to renal pathological injury but also to a reduction in most of Hsp levels in the kidney. However, slight Hsp27 induction ( P < 0.05) indicates that Hsps that undergo different changes following transportation stress are involved in different physiological functions. Whether the decreased amount of a certain Hsp may indicate damage and/or overuse and whether Hsps actually protect kidney tissue from such overuse remain to be elucidated.
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