Leukocyte Populations and Steroid Receptor Expression in Human First-Trimester Decidua; Regulation by Antiprogestin and Prostaglandin E Analog
Context: Progesterone acting via its cognate receptor is critical to maintaining a viable endometrial environment for implantation and pregnancy. During medical termination of pregnancy, the biological effect of progesterone is pharmacologically withdrawn and prostaglandins administered exogenously....
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Published in | The journal of clinical endocrinology and metabolism Vol. 90; no. 7; pp. 4315 - 4321 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
Bethesda, MD
Endocrine Society
01.07.2005
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Subjects | |
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Abstract | Context: Progesterone acting via its cognate receptor is critical to maintaining a viable endometrial environment for implantation and pregnancy. During medical termination of pregnancy, the biological effect of progesterone is pharmacologically withdrawn and prostaglandins administered exogenously. Leukocytes within the uterus are the effector cells of an inflammatory response and play important roles in both tissue breakdown and remodeling.
Objective: The aim of this study was to identify the separate and combined effects of the antiprogestin Mifepristone (single dose, 200 mg) and the prostaglandin E (PGE) analog (gemeprost) on leukocyte populations and steroid receptor expression in human first-trimester decidua.
Patients: Eighty women were recruited from the termination of pregnancy service with a gestational age of between 35 and 65 d at the time of surgical termination of pregnancy.
Main Outcome Measures: Immunohistochemistry was used to measure macrophage (CD68 +ve), neutrophil (neutrophil elastase +ve), and uterine natural killer cell (CD56 +ve) populations and progesterone (PRA and PRB), estrogen (ERα and ERβ), and androgen receptor (AR) expression.
Results: After administration of both antiprogestin and the PGE analog, macrophage and neutrophil numbers were significantly increased, whereas natural killer cell numbers were unchanged. Antiprogestin and PGE analog coadministration also significantly decreased PR and ERα immunoreactivity but had no effect on androgen receptor or ERβ receptor expression. PGE analog alone was also capable of reducing PR expression.
Conclusions: In this study, we demonstrate that the inflammatory response induced by antiprogestin in combination with PGE analog is accompanied by both increases in macrophages and neutrophils numbers and decreases in PR and ERα expression in human first-trimester decidua. |
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AbstractList | Context: Progesterone acting via its cognate receptor is critical to maintaining a viable endometrial environment for implantation and pregnancy. During medical termination of pregnancy, the biological effect of progesterone is pharmacologically withdrawn and prostaglandins administered exogenously. Leukocytes within the uterus are the effector cells of an inflammatory response and play important roles in both tissue breakdown and remodeling.
Objective: The aim of this study was to identify the separate and combined effects of the antiprogestin Mifepristone (single dose, 200 mg) and the prostaglandin E (PGE) analog (gemeprost) on leukocyte populations and steroid receptor expression in human first-trimester decidua.
Patients: Eighty women were recruited from the termination of pregnancy service with a gestational age of between 35 and 65 d at the time of surgical termination of pregnancy.
Main Outcome Measures: Immunohistochemistry was used to measure macrophage (CD68 +ve), neutrophil (neutrophil elastase +ve), and uterine natural killer cell (CD56 +ve) populations and progesterone (PRA and PRB), estrogen (ERα and ERβ), and androgen receptor (AR) expression.
Results: After administration of both antiprogestin and the PGE analog, macrophage and neutrophil numbers were significantly increased, whereas natural killer cell numbers were unchanged. Antiprogestin and PGE analog coadministration also significantly decreased PR and ERα immunoreactivity but had no effect on androgen receptor or ERβ receptor expression. PGE analog alone was also capable of reducing PR expression.
Conclusions: In this study, we demonstrate that the inflammatory response induced by antiprogestin in combination with PGE analog is accompanied by both increases in macrophages and neutrophils numbers and decreases in PR and ERα expression in human first-trimester decidua. CONTEXTProgesterone acting via its cognate receptor is critical to maintaining a viable endometrial environment for implantation and pregnancy. During medical termination of pregnancy, the biological effect of progesterone is pharmacologically withdrawn and prostaglandins administered exogenously. Leukocytes within the uterus are the effector cells of an inflammatory response and play important roles in both tissue breakdown and remodeling. OBJECTIVEThe aim of this study was to identify the separate and combined effects of the antiprogestin Mifepristone (single dose, 200 mg) and the prostaglandin E (PGE) analog (gemeprost) on leukocyte populations and steroid receptor expression in human first-trimester decidua. PATIENTSEighty women were recruited from the termination of pregnancy service with a gestational age of between 35 and 65 d at the time of surgical termination of pregnancy. MAIN OUTCOME MEASURESImmunohistochemistry was used to measure macrophage (CD68 +ve), neutrophil (neutrophil elastase +ve), and uterine natural killer cell (CD56 +ve) populations and progesterone (PR(A) and PR(B)), estrogen (ERalpha and ERbeta), and androgen receptor (AR) expression. RESULTSAfter administration of both antiprogestin and the PGE analog, macrophage and neutrophil numbers were significantly increased, whereas natural killer cell numbers were unchanged. Antiprogestin and PGE analog coadministration also significantly decreased PR and ERalpha immunoreactivity but had no effect on androgen receptor or ERbeta receptor expression. PGE analog alone was also capable of reducing PR expression. CONCLUSIONSIn this study, we demonstrate that the inflammatory response induced by antiprogestin in combination with PGE analog is accompanied by both increases in macrophages and neutrophils numbers and decreases in PR and ERalpha expression in human first-trimester decidua. Progesterone acting via its cognate receptor is critical to maintaining a viable endometrial environment for implantation and pregnancy. During medical termination of pregnancy, the biological effect of progesterone is pharmacologically withdrawn and prostaglandins administered exogenously. Leukocytes within the uterus are the effector cells of an inflammatory response and play important roles in both tissue breakdown and remodeling. The aim of this study was to identify the separate and combined effects of the antiprogestin Mifepristone (single dose, 200 mg) and the prostaglandin E (PGE) analog (gemeprost) on leukocyte populations and steroid receptor expression in human first-trimester decidua. Eighty women were recruited from the termination of pregnancy service with a gestational age of between 35 and 65 d at the time of surgical termination of pregnancy. Immunohistochemistry was used to measure macrophage (CD68 +ve), neutrophil (neutrophil elastase +ve), and uterine natural killer cell (CD56 +ve) populations and progesterone (PR(A) and PR(B)), estrogen (ERalpha and ERbeta), and androgen receptor (AR) expression. After administration of both antiprogestin and the PGE analog, macrophage and neutrophil numbers were significantly increased, whereas natural killer cell numbers were unchanged. Antiprogestin and PGE analog coadministration also significantly decreased PR and ERalpha immunoreactivity but had no effect on androgen receptor or ERbeta receptor expression. PGE analog alone was also capable of reducing PR expression. In this study, we demonstrate that the inflammatory response induced by antiprogestin in combination with PGE analog is accompanied by both increases in macrophages and neutrophils numbers and decreases in PR and ERalpha expression in human first-trimester decidua. |
Author | Kelly, Rodney W Milne, Stuart A Henderson, Teresa A Critchley, Hilary O. D Baird, David T Saunders, Philippa T |
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Snippet | Context: Progesterone acting via its cognate receptor is critical to maintaining a viable endometrial environment for implantation and pregnancy. During... Progesterone acting via its cognate receptor is critical to maintaining a viable endometrial environment for implantation and pregnancy. During medical... CONTEXTProgesterone acting via its cognate receptor is critical to maintaining a viable endometrial environment for implantation and pregnancy. During medical... |
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SubjectTerms | Abortifacient Agents - pharmacology Alprostadil - analogs & derivatives Alprostadil - pharmacology Biological and medical sciences Decidua - chemistry Decidua - cytology Decidua - drug effects Endocrinopathies Female Fundamental and applied biological sciences. Psychology Hormone Antagonists - pharmacology Humans Immunohistochemistry Killer Cells, Natural - drug effects Leukocyte Count Macrophages - drug effects Medical sciences Mifepristone - pharmacology Neutrophils - drug effects Pregnancy Pregnancy Trimester, First Receptors, Androgen - analysis Receptors, Estrogen - analysis Receptors, Progesterone - analysis Vertebrates: endocrinology |
Title | Leukocyte Populations and Steroid Receptor Expression in Human First-Trimester Decidua; Regulation by Antiprogestin and Prostaglandin E Analog |
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