Gonadotropin and steroid regulation of steroid receptor and aryl hydrocarbon receptor messenger ribonucleic acid in macaque granulosa cells during the periovulatory interval

C. L. Chaffin, Richard Stouffer, D. M. Duffy

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    58 Citations (Scopus)

    Abstract

    Although steroids play a local role(s) in ovulation and luteinization of the primate follicle, the dynamics of steroid receptor expression during the 36- to 38-h periovulatory interval has yet to be elucidated. The present study examines the regulation of messenger RNAs (mRNAs) for progesterone (PR), androgen (AR), and estrogen (ERα, ERβ) receptors as well as the aryl hydrocarbon receptor (AhR) in macaque granulosa cells during controlled ovarian stimulation cycles before (0 h) and after (up to 36 h) administration of the ovulatory hCG bolus with or without steroid depletion and progestin replacement. All steroid receptor mRNAs were detected in granulosa cells before the ovulatory stimulus, as determined by RT-PCR. PR mRNA increased (P <0.05) by 12 h after hCG; 24 and 36 h after hCG, levels were intermediate between 0-12 h. PR mRNA was reduced by steroid depletion throughout the periovulatory interval (P <0.05); however, progestin replacement returned PR mRNA to control levels at 12 h. AR mRNA increased (P <0.05) at 24 h post-hCG and remained at this level 36 h after hCG; steroid depletion did not alter AR mRNA levels. ERα mRNA did not change, whereas ERβ decreased 12-36 h after the ovulatory stimulus (P <0.05). Steroid depletion reduced ERα mRNA 12 h after hCG, an effect partially reversible by progestin replacement, whereas ERβ mRNA was not affected by steroids. AhR mRNA was undetectable before the administration of hCG, but increased by 12 h (P <0.05). These data demonstrate hCG-initiated, steroid-dependent (PR, ERα) and -independent (AR, ERβ, AhR) expression of receptor mRNAs in primate granulosa cells during the periovulatory interval. Differences in patterns of expression may relate to diverse roles for steroid hormones and AhR ligands in periovulatory events.

    Original languageEnglish (US)
    Pages (from-to)4753-4760
    Number of pages8
    JournalEndocrinology
    Volume140
    Issue number10
    StatePublished - 1999

    Fingerprint

    Aryl Hydrocarbon Receptors
    Granulosa Cells
    Steroid Receptors
    Macaca
    Gonadotropins
    Steroids
    RNA
    Messenger RNA
    Progesterone
    Progestins
    Primates
    Androgens
    Luteinization
    Ovulation Induction
    Androgen Receptors
    Progesterone Receptors
    Menstrual Cycle
    Ovulation
    Estrogen Receptors

    ASJC Scopus subject areas

    • Endocrinology
    • Endocrinology, Diabetes and Metabolism

    Cite this

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    title = "Gonadotropin and steroid regulation of steroid receptor and aryl hydrocarbon receptor messenger ribonucleic acid in macaque granulosa cells during the periovulatory interval",
    abstract = "Although steroids play a local role(s) in ovulation and luteinization of the primate follicle, the dynamics of steroid receptor expression during the 36- to 38-h periovulatory interval has yet to be elucidated. The present study examines the regulation of messenger RNAs (mRNAs) for progesterone (PR), androgen (AR), and estrogen (ERα, ERβ) receptors as well as the aryl hydrocarbon receptor (AhR) in macaque granulosa cells during controlled ovarian stimulation cycles before (0 h) and after (up to 36 h) administration of the ovulatory hCG bolus with or without steroid depletion and progestin replacement. All steroid receptor mRNAs were detected in granulosa cells before the ovulatory stimulus, as determined by RT-PCR. PR mRNA increased (P <0.05) by 12 h after hCG; 24 and 36 h after hCG, levels were intermediate between 0-12 h. PR mRNA was reduced by steroid depletion throughout the periovulatory interval (P <0.05); however, progestin replacement returned PR mRNA to control levels at 12 h. AR mRNA increased (P <0.05) at 24 h post-hCG and remained at this level 36 h after hCG; steroid depletion did not alter AR mRNA levels. ERα mRNA did not change, whereas ERβ decreased 12-36 h after the ovulatory stimulus (P <0.05). Steroid depletion reduced ERα mRNA 12 h after hCG, an effect partially reversible by progestin replacement, whereas ERβ mRNA was not affected by steroids. AhR mRNA was undetectable before the administration of hCG, but increased by 12 h (P <0.05). These data demonstrate hCG-initiated, steroid-dependent (PR, ERα) and -independent (AR, ERβ, AhR) expression of receptor mRNAs in primate granulosa cells during the periovulatory interval. Differences in patterns of expression may relate to diverse roles for steroid hormones and AhR ligands in periovulatory events.",
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    year = "1999",
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    T1 - Gonadotropin and steroid regulation of steroid receptor and aryl hydrocarbon receptor messenger ribonucleic acid in macaque granulosa cells during the periovulatory interval

    AU - Chaffin, C. L.

    AU - Stouffer, Richard

    AU - Duffy, D. M.

    PY - 1999

    Y1 - 1999

    N2 - Although steroids play a local role(s) in ovulation and luteinization of the primate follicle, the dynamics of steroid receptor expression during the 36- to 38-h periovulatory interval has yet to be elucidated. The present study examines the regulation of messenger RNAs (mRNAs) for progesterone (PR), androgen (AR), and estrogen (ERα, ERβ) receptors as well as the aryl hydrocarbon receptor (AhR) in macaque granulosa cells during controlled ovarian stimulation cycles before (0 h) and after (up to 36 h) administration of the ovulatory hCG bolus with or without steroid depletion and progestin replacement. All steroid receptor mRNAs were detected in granulosa cells before the ovulatory stimulus, as determined by RT-PCR. PR mRNA increased (P <0.05) by 12 h after hCG; 24 and 36 h after hCG, levels were intermediate between 0-12 h. PR mRNA was reduced by steroid depletion throughout the periovulatory interval (P <0.05); however, progestin replacement returned PR mRNA to control levels at 12 h. AR mRNA increased (P <0.05) at 24 h post-hCG and remained at this level 36 h after hCG; steroid depletion did not alter AR mRNA levels. ERα mRNA did not change, whereas ERβ decreased 12-36 h after the ovulatory stimulus (P <0.05). Steroid depletion reduced ERα mRNA 12 h after hCG, an effect partially reversible by progestin replacement, whereas ERβ mRNA was not affected by steroids. AhR mRNA was undetectable before the administration of hCG, but increased by 12 h (P <0.05). These data demonstrate hCG-initiated, steroid-dependent (PR, ERα) and -independent (AR, ERβ, AhR) expression of receptor mRNAs in primate granulosa cells during the periovulatory interval. Differences in patterns of expression may relate to diverse roles for steroid hormones and AhR ligands in periovulatory events.

    AB - Although steroids play a local role(s) in ovulation and luteinization of the primate follicle, the dynamics of steroid receptor expression during the 36- to 38-h periovulatory interval has yet to be elucidated. The present study examines the regulation of messenger RNAs (mRNAs) for progesterone (PR), androgen (AR), and estrogen (ERα, ERβ) receptors as well as the aryl hydrocarbon receptor (AhR) in macaque granulosa cells during controlled ovarian stimulation cycles before (0 h) and after (up to 36 h) administration of the ovulatory hCG bolus with or without steroid depletion and progestin replacement. All steroid receptor mRNAs were detected in granulosa cells before the ovulatory stimulus, as determined by RT-PCR. PR mRNA increased (P <0.05) by 12 h after hCG; 24 and 36 h after hCG, levels were intermediate between 0-12 h. PR mRNA was reduced by steroid depletion throughout the periovulatory interval (P <0.05); however, progestin replacement returned PR mRNA to control levels at 12 h. AR mRNA increased (P <0.05) at 24 h post-hCG and remained at this level 36 h after hCG; steroid depletion did not alter AR mRNA levels. ERα mRNA did not change, whereas ERβ decreased 12-36 h after the ovulatory stimulus (P <0.05). Steroid depletion reduced ERα mRNA 12 h after hCG, an effect partially reversible by progestin replacement, whereas ERβ mRNA was not affected by steroids. AhR mRNA was undetectable before the administration of hCG, but increased by 12 h (P <0.05). These data demonstrate hCG-initiated, steroid-dependent (PR, ERα) and -independent (AR, ERβ, AhR) expression of receptor mRNAs in primate granulosa cells during the periovulatory interval. Differences in patterns of expression may relate to diverse roles for steroid hormones and AhR ligands in periovulatory events.

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    M3 - Article

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