Serum and Follicular Fluid Levels of Insulin-Like Growth Factor I (IGF-I), IGF-II, and IGF-Binding Protein-1 and -3 during the Normal Menstrual Cycle

H. J H M Thierry Van Dessel, Yasmin Chandrasekher, O. W Stephanie Yap, Phillip Lee, Raymond L. Hintz, Gerry H J Faessen, Didi D M Braat, Bart C J M Fauser, Linda C. Giudice

Research output: Contribution to journalArticle

120 Citations (Scopus)

Abstract

Insulin-like growth factors (IGFs) and their binding proteins (IGFBPs) have important regulatory functions in ovarian follicular development. Although most studies have investigated the IGF system in ovarian cells in vitro, investigation of the IGF system in the peripheral circulation and in follicles of varying sizes throughout the menstrual cycle in large numbers of subjects has been lacking. In the current study we performed daily IGF-I, IGF-II, IGFBP-1, and IGFBP-3 measurements in 9 healthy regularly cycling volunteers throughout the menstrual cycle. In addition, we investigated IGF-I, IGF-II, IGFBP-1, and IGFBP-3 levels in 13 samples of androgen-dominant follicular fluid [FFa; androstenedione to estradiol (AD:E2) ratio, >4] and 19 samples of estrogen-dominant follicular fluid (FFe.; AD;E2 ratio, 4) obtained from 21 regularly cycling subjects and in 18 samples of fluid from luteinizing follicles obtained from patients undergoing in vitro fertilization (IVF) treatment (FFivf). IGF-I, IGF-II, IGFBP-1, and IGFBP-3 were measured using two-site immunoradiometric assays. No significant day to day differences were observed in IGF-I, IGF-II, IGFBP-1, and IGFBP-3 levels across the menstrual cycle. Median IGF-II levels in FFe (630 ng/mL; range, 212-1000) were significantly higher compared to those in FFa (474 ng/mL; range, 272-603; P = 0.002). Median IGFBP-3 levels in FFe. (2955 ng/mL; range, 388-3448) were also significantly higher than those in FFa (2352 ng/mL; range, 756-2604; P = 0.003). Median IGF-I (192 ng/mL; range, 29-256) and IGFBP-1 (12 ng/mL; range, 2-281) levels in FFe were not significantly different from those in FFa [149 (range, 22-232) and 21 (range, 5-32) ng/mL, respectively]. In contrast, significantly lower IGFBP-1 levels were found in FFe compared to FFivf (79 ng/mL; range, 57-234; P = 0.002), whereas there was no significant difference between FFe and FFiVf IGF-I, IGF-II, or IGFBP-3 levels, respectively. IGF-II levels were correlated with follicle diameter (r = 0.52; P = 0.002), cycle day (r = 0.47; P = 0.006), E2 levels (r = 0.53; P = 0.003), AD:E2 ratio (r = -0.58; P = 0.001), and P concentrations (r = 0.60; P = 0.001) in all follicles, whereas no such correlations were found with IGF-I. In conclusion, as circulating levels of IGF-I, IGF-II, IGFBP-1, and IGFBP-3 are not menstrual cycle dependent, it is unlikely that these growth factors and these binding proteins play an endocrine role in cyclic ovarian follicle development, although both cycle-dependent delivery to the ovary and modification of their actions locally within the ovary cannot be excluded. With regard to FF, the findings that IGF-II levels in FFe are elevated compared to those in FFa and correlate with follicular functional status support a role for IGF-II during development of the dominant follicle. In addition, as IGFBP-3 in estrogen-dominant follicles mirrors the rise of IGF-II, this IGFBP may be a primary regulator of IGF-II action within the estrogen-dominant follicle. Finally, the finding of elevated levels of IGFBP-1 in luteinizing (IVF) follicles suggests an important role for this peptide in corpus luteum regulation.

Original languageEnglish (US)
Pages (from-to)1224-1231
Number of pages8
JournalJournal of Clinical Endocrinology and Metabolism
Volume81
Issue number3
StatePublished - 1996
Externally publishedYes

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Insulin-Like Growth Factor Binding Protein 1
Follicular Fluid
Insulin-Like Growth Factor Binding Protein 3
Insulin-Like Growth Factor II
Menstrual Cycle
Insulin-Like Growth Factor I
Fluids
Serum
Insulin-Like Growth Factor Binding Proteins
Estrogens
Somatomedins
Fertilization in Vitro
Ovary
Immunoradiometric Assay
Ovarian Follicle
Androstenedione
Corpus Luteum
Androgens
Volunteers
Estradiol

ASJC Scopus subject areas

  • Biochemistry
  • Endocrinology, Diabetes and Metabolism

Cite this

Van Dessel, H. J. H. M. T., Chandrasekher, Y., Yap, O. W. S., Lee, P., Hintz, R. L., Faessen, G. H. J., ... Giudice, L. C. (1996). Serum and Follicular Fluid Levels of Insulin-Like Growth Factor I (IGF-I), IGF-II, and IGF-Binding Protein-1 and -3 during the Normal Menstrual Cycle. Journal of Clinical Endocrinology and Metabolism, 81(3), 1224-1231.

Serum and Follicular Fluid Levels of Insulin-Like Growth Factor I (IGF-I), IGF-II, and IGF-Binding Protein-1 and -3 during the Normal Menstrual Cycle. / Van Dessel, H. J H M Thierry; Chandrasekher, Yasmin; Yap, O. W Stephanie; Lee, Phillip; Hintz, Raymond L.; Faessen, Gerry H J; Braat, Didi D M; Fauser, Bart C J M; Giudice, Linda C.

In: Journal of Clinical Endocrinology and Metabolism, Vol. 81, No. 3, 1996, p. 1224-1231.

Research output: Contribution to journalArticle

Van Dessel, HJHMT, Chandrasekher, Y, Yap, OWS, Lee, P, Hintz, RL, Faessen, GHJ, Braat, DDM, Fauser, BCJM & Giudice, LC 1996, 'Serum and Follicular Fluid Levels of Insulin-Like Growth Factor I (IGF-I), IGF-II, and IGF-Binding Protein-1 and -3 during the Normal Menstrual Cycle', Journal of Clinical Endocrinology and Metabolism, vol. 81, no. 3, pp. 1224-1231.
Van Dessel, H. J H M Thierry ; Chandrasekher, Yasmin ; Yap, O. W Stephanie ; Lee, Phillip ; Hintz, Raymond L. ; Faessen, Gerry H J ; Braat, Didi D M ; Fauser, Bart C J M ; Giudice, Linda C. / Serum and Follicular Fluid Levels of Insulin-Like Growth Factor I (IGF-I), IGF-II, and IGF-Binding Protein-1 and -3 during the Normal Menstrual Cycle. In: Journal of Clinical Endocrinology and Metabolism. 1996 ; Vol. 81, No. 3. pp. 1224-1231.
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abstract = "Insulin-like growth factors (IGFs) and their binding proteins (IGFBPs) have important regulatory functions in ovarian follicular development. Although most studies have investigated the IGF system in ovarian cells in vitro, investigation of the IGF system in the peripheral circulation and in follicles of varying sizes throughout the menstrual cycle in large numbers of subjects has been lacking. In the current study we performed daily IGF-I, IGF-II, IGFBP-1, and IGFBP-3 measurements in 9 healthy regularly cycling volunteers throughout the menstrual cycle. In addition, we investigated IGF-I, IGF-II, IGFBP-1, and IGFBP-3 levels in 13 samples of androgen-dominant follicular fluid [FFa; androstenedione to estradiol (AD:E2) ratio, >4] and 19 samples of estrogen-dominant follicular fluid (FFe.; AD;E2 ratio, 4) obtained from 21 regularly cycling subjects and in 18 samples of fluid from luteinizing follicles obtained from patients undergoing in vitro fertilization (IVF) treatment (FFivf). IGF-I, IGF-II, IGFBP-1, and IGFBP-3 were measured using two-site immunoradiometric assays. No significant day to day differences were observed in IGF-I, IGF-II, IGFBP-1, and IGFBP-3 levels across the menstrual cycle. Median IGF-II levels in FFe (630 ng/mL; range, 212-1000) were significantly higher compared to those in FFa (474 ng/mL; range, 272-603; P = 0.002). Median IGFBP-3 levels in FFe. (2955 ng/mL; range, 388-3448) were also significantly higher than those in FFa (2352 ng/mL; range, 756-2604; P = 0.003). Median IGF-I (192 ng/mL; range, 29-256) and IGFBP-1 (12 ng/mL; range, 2-281) levels in FFe were not significantly different from those in FFa [149 (range, 22-232) and 21 (range, 5-32) ng/mL, respectively]. In contrast, significantly lower IGFBP-1 levels were found in FFe compared to FFivf (79 ng/mL; range, 57-234; P = 0.002), whereas there was no significant difference between FFe and FFiVf IGF-I, IGF-II, or IGFBP-3 levels, respectively. IGF-II levels were correlated with follicle diameter (r = 0.52; P = 0.002), cycle day (r = 0.47; P = 0.006), E2 levels (r = 0.53; P = 0.003), AD:E2 ratio (r = -0.58; P = 0.001), and P concentrations (r = 0.60; P = 0.001) in all follicles, whereas no such correlations were found with IGF-I. In conclusion, as circulating levels of IGF-I, IGF-II, IGFBP-1, and IGFBP-3 are not menstrual cycle dependent, it is unlikely that these growth factors and these binding proteins play an endocrine role in cyclic ovarian follicle development, although both cycle-dependent delivery to the ovary and modification of their actions locally within the ovary cannot be excluded. With regard to FF, the findings that IGF-II levels in FFe are elevated compared to those in FFa and correlate with follicular functional status support a role for IGF-II during development of the dominant follicle. In addition, as IGFBP-3 in estrogen-dominant follicles mirrors the rise of IGF-II, this IGFBP may be a primary regulator of IGF-II action within the estrogen-dominant follicle. Finally, the finding of elevated levels of IGFBP-1 in luteinizing (IVF) follicles suggests an important role for this peptide in corpus luteum regulation.",
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T1 - Serum and Follicular Fluid Levels of Insulin-Like Growth Factor I (IGF-I), IGF-II, and IGF-Binding Protein-1 and -3 during the Normal Menstrual Cycle

AU - Van Dessel, H. J H M Thierry

AU - Chandrasekher, Yasmin

AU - Yap, O. W Stephanie

AU - Lee, Phillip

AU - Hintz, Raymond L.

AU - Faessen, Gerry H J

AU - Braat, Didi D M

AU - Fauser, Bart C J M

AU - Giudice, Linda C.

PY - 1996

Y1 - 1996

N2 - Insulin-like growth factors (IGFs) and their binding proteins (IGFBPs) have important regulatory functions in ovarian follicular development. Although most studies have investigated the IGF system in ovarian cells in vitro, investigation of the IGF system in the peripheral circulation and in follicles of varying sizes throughout the menstrual cycle in large numbers of subjects has been lacking. In the current study we performed daily IGF-I, IGF-II, IGFBP-1, and IGFBP-3 measurements in 9 healthy regularly cycling volunteers throughout the menstrual cycle. In addition, we investigated IGF-I, IGF-II, IGFBP-1, and IGFBP-3 levels in 13 samples of androgen-dominant follicular fluid [FFa; androstenedione to estradiol (AD:E2) ratio, >4] and 19 samples of estrogen-dominant follicular fluid (FFe.; AD;E2 ratio, 4) obtained from 21 regularly cycling subjects and in 18 samples of fluid from luteinizing follicles obtained from patients undergoing in vitro fertilization (IVF) treatment (FFivf). IGF-I, IGF-II, IGFBP-1, and IGFBP-3 were measured using two-site immunoradiometric assays. No significant day to day differences were observed in IGF-I, IGF-II, IGFBP-1, and IGFBP-3 levels across the menstrual cycle. Median IGF-II levels in FFe (630 ng/mL; range, 212-1000) were significantly higher compared to those in FFa (474 ng/mL; range, 272-603; P = 0.002). Median IGFBP-3 levels in FFe. (2955 ng/mL; range, 388-3448) were also significantly higher than those in FFa (2352 ng/mL; range, 756-2604; P = 0.003). Median IGF-I (192 ng/mL; range, 29-256) and IGFBP-1 (12 ng/mL; range, 2-281) levels in FFe were not significantly different from those in FFa [149 (range, 22-232) and 21 (range, 5-32) ng/mL, respectively]. In contrast, significantly lower IGFBP-1 levels were found in FFe compared to FFivf (79 ng/mL; range, 57-234; P = 0.002), whereas there was no significant difference between FFe and FFiVf IGF-I, IGF-II, or IGFBP-3 levels, respectively. IGF-II levels were correlated with follicle diameter (r = 0.52; P = 0.002), cycle day (r = 0.47; P = 0.006), E2 levels (r = 0.53; P = 0.003), AD:E2 ratio (r = -0.58; P = 0.001), and P concentrations (r = 0.60; P = 0.001) in all follicles, whereas no such correlations were found with IGF-I. In conclusion, as circulating levels of IGF-I, IGF-II, IGFBP-1, and IGFBP-3 are not menstrual cycle dependent, it is unlikely that these growth factors and these binding proteins play an endocrine role in cyclic ovarian follicle development, although both cycle-dependent delivery to the ovary and modification of their actions locally within the ovary cannot be excluded. With regard to FF, the findings that IGF-II levels in FFe are elevated compared to those in FFa and correlate with follicular functional status support a role for IGF-II during development of the dominant follicle. In addition, as IGFBP-3 in estrogen-dominant follicles mirrors the rise of IGF-II, this IGFBP may be a primary regulator of IGF-II action within the estrogen-dominant follicle. Finally, the finding of elevated levels of IGFBP-1 in luteinizing (IVF) follicles suggests an important role for this peptide in corpus luteum regulation.

AB - Insulin-like growth factors (IGFs) and their binding proteins (IGFBPs) have important regulatory functions in ovarian follicular development. Although most studies have investigated the IGF system in ovarian cells in vitro, investigation of the IGF system in the peripheral circulation and in follicles of varying sizes throughout the menstrual cycle in large numbers of subjects has been lacking. In the current study we performed daily IGF-I, IGF-II, IGFBP-1, and IGFBP-3 measurements in 9 healthy regularly cycling volunteers throughout the menstrual cycle. In addition, we investigated IGF-I, IGF-II, IGFBP-1, and IGFBP-3 levels in 13 samples of androgen-dominant follicular fluid [FFa; androstenedione to estradiol (AD:E2) ratio, >4] and 19 samples of estrogen-dominant follicular fluid (FFe.; AD;E2 ratio, 4) obtained from 21 regularly cycling subjects and in 18 samples of fluid from luteinizing follicles obtained from patients undergoing in vitro fertilization (IVF) treatment (FFivf). IGF-I, IGF-II, IGFBP-1, and IGFBP-3 were measured using two-site immunoradiometric assays. No significant day to day differences were observed in IGF-I, IGF-II, IGFBP-1, and IGFBP-3 levels across the menstrual cycle. Median IGF-II levels in FFe (630 ng/mL; range, 212-1000) were significantly higher compared to those in FFa (474 ng/mL; range, 272-603; P = 0.002). Median IGFBP-3 levels in FFe. (2955 ng/mL; range, 388-3448) were also significantly higher than those in FFa (2352 ng/mL; range, 756-2604; P = 0.003). Median IGF-I (192 ng/mL; range, 29-256) and IGFBP-1 (12 ng/mL; range, 2-281) levels in FFe were not significantly different from those in FFa [149 (range, 22-232) and 21 (range, 5-32) ng/mL, respectively]. In contrast, significantly lower IGFBP-1 levels were found in FFe compared to FFivf (79 ng/mL; range, 57-234; P = 0.002), whereas there was no significant difference between FFe and FFiVf IGF-I, IGF-II, or IGFBP-3 levels, respectively. IGF-II levels were correlated with follicle diameter (r = 0.52; P = 0.002), cycle day (r = 0.47; P = 0.006), E2 levels (r = 0.53; P = 0.003), AD:E2 ratio (r = -0.58; P = 0.001), and P concentrations (r = 0.60; P = 0.001) in all follicles, whereas no such correlations were found with IGF-I. In conclusion, as circulating levels of IGF-I, IGF-II, IGFBP-1, and IGFBP-3 are not menstrual cycle dependent, it is unlikely that these growth factors and these binding proteins play an endocrine role in cyclic ovarian follicle development, although both cycle-dependent delivery to the ovary and modification of their actions locally within the ovary cannot be excluded. With regard to FF, the findings that IGF-II levels in FFe are elevated compared to those in FFa and correlate with follicular functional status support a role for IGF-II during development of the dominant follicle. In addition, as IGFBP-3 in estrogen-dominant follicles mirrors the rise of IGF-II, this IGFBP may be a primary regulator of IGF-II action within the estrogen-dominant follicle. Finally, the finding of elevated levels of IGFBP-1 in luteinizing (IVF) follicles suggests an important role for this peptide in corpus luteum regulation.

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