Expression of heat shock protein70 in pig oocytes: Heat shock response during oocyte growth

LÁNSKÁ, V., CHMELÍKOVÁ, E., SEDMÍKOVÁ, M., PETR, J., RAJMON, R., JEŠETA, M. & ROZINEK, J.. Expression of heat shock protein70 in pig oocytes: Heat shock response during oocyte growth. Animal Reproduction Science. 2006, roč. 96, č. 1-2, s. 154-164.
LÁNSKÁ, V., CHMELÍKOVÁ, Eva, SEDMÍKOVÁ, M., PETR, Jaroslav, RAJMON, Radko, JEŠETA, M. a ROZINEK, J. Expression of heat shock protein70 in pig oocytes: Heat shock response during oocyte growth. Animal Reproduction Science, 2006, 96, 154-164. ISSN 0378-4320.
Year2006
CathegoryScientific publication in impacted journals
Internal link6189.pdf
Abstract

The heat shock response of growing and fully grown pig oocytes was analyzed in vitro by determining heat shock protein (HSP70) synthesis under both normal conditions (39 deg C, 0 and 6 h) and after heat shock (43 deg C, 1, 4 and 6 h). The results indicate that growing oocytes are able to synthesize HSP70 and this ability declines at the end of the growth period, and fully-grown oocytes are unable to induce HSP70 synthesis after heat shock. HSP70 is synthesized and stored during oocyte growth. The high HSP70 synthesis in non-heat-treated growing oocytes and a great amount of HSP70 in fully-grown oocytes support the hypothesis that HSP70 is important for oocyte growth and maturation.