종양괴사인자-α가 배양된 인간 황체화과립막세포의 인슐린유사성장인자-II, 인슐린유사성장인자 결합단백질-1, 2, 3, 5 mRNA 발현에 미치는 영향
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=목적: 종양괴사인자-α (tumor necrosis factor-α, TNF-α)를 인간 난소 황체화과립막세포 (luteinized granulosa cell)에 처리하고 배양하여 TNF-α가 인간 난소 황체화과립막세포의 인슐린유사성장인자계 (insulin-like growth factor system, IGF system)에 미치는 영향을 알아보고자 하였다.연구 방법: 체외수정시술 (in vitro fertilization and embryo transfer, IVF-ET)을 시행받은 불임 환자들로부터 과배란유도 (controlled ovarian hyperstimulation, COH) 후 난자채취시 난포액에서 황체화과립막세포를 얻은 후 24시간 동안 배양한 뒤, 대조군에는 TNF-α를 첨가하지 않고, 처치군은 3개의 군으로 다시 나누어 각각 1.0 ng/mL, 10.0 ng/mL, 그리고 100.0 ng/mL의 TNF-α를 첨가한 후 72시간 동안 배양하여 조건배양액으로부터 IGF-II, IGFBP (insulin-like grothw factor binding protein)-1, 2, 그리고 3 등을 면역방사계측법및 방사면역측정법을 사용하여 측정하였다. 결과: 대조군을 포함하여 TNF-α 처리 후 각 군의 황체화과립막세포의 평균 생존율은 유사하였으나, 대조군과 TNF-α 1.0 ng/mL, 10.0 ng/mL 처리군에 비하여 100.0 ng/mL 처리군에서 세포 증식이 현저하였다. 배양액 내 E2의 분비량은 각 군 사이에 차이가 없었으나 P4의 분비량은 TNF-α의 농도가 증가할수록 감소하는 경향을 보였으며, 100.0 ng/mL 처리군에서 대조군 및 TNF-α 1.0 ng/mL 처리군에 비하여 유의한 감소를 나타내었다. 배양액 내 IGF-II, IGFBP-1, 2, 그리고 3의 분비량은 각 군 사이에 유의한 차이가 없었다. 각 군 사이에 IGF 제 I형 수용체 항체를 처리한 전후의 E2와 P4의 분비량에는 유의한 차이가 없었다.
참고문헌 (28)
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