Expression and cellular distribution of insulin-like growth factor 1 receptor during window of implantation in infertile women with intramural fibroids

Annu Makker; Madhu Mati Goel; Dipti Nigam; Amita Pandey

doi:10.18203/2320-1770.ijrcog20193812

Authors

Annu Makker Department of Biochemistry, Prasad Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
Madhu Mati Goel Department of Pathology, King George’s Medical University, Lucknow, Uttar Pradesh, India
Dipti Nigam Department of Pathology, King George’s Medical University, Lucknow, Uttar Pradesh, India
Amita Pandey Department of Obstetrics and Gynecology, King George’s Medical University, Lucknow, Uttar Pradesh, India

DOI:

https://doi.org/10.18203/2320-1770.ijrcog20193812

Keywords:

IGF1R, Immunohistochemistry, Intramural fibroids, RT-PCR, Window of implantation

Abstract

Background: The “window of implantation” (WOI) is a transient but well defined period during which the hostile endometrial lining is transformed to a surface receptive to accept the embryo. Recently, data are beginning to accumulate suggesting negative influence of non-cavity distorting intramural uterine fibroids (NCD-IMF) on endometrial receptivity that may have implications for implantation failure. However, molecular mechanisms underlying infertility associated with NCD-IMF remain unclear. The aim of present study was to examine the expression and cellular distribution of insulin-like growth factor 1 receptor (IGF1R) during WOI in infertile women with NCD-IMF and fertile controls. While, reports are available that support role of IGF1R in mediating adhesive interaction with the implanting blastocyst, the effect of NCD-IMF on IGF1R expression during the WOI is not defined.

Methods: Quantitative real-time polymerase chain reaction and immunohistochemistry were used to evaluate messenger RNA (mRNA) and protein expression of IGF1R in midsecretory endometrial biopsies obtained from infertile women with NCD-IMF (n=20) and healthy fertile controls (n=10).

Results: As compared to fertile controls, significantly higher IGF1R: i) mRNA levels (1.59 fold up regulation; p=0.044) and ii) immunoscore in the luminal epithelium (8.94±3.13 versus 6.31±1.49; p=0.009) were observed in infertile women with NCD-IMF.

Conclusions: Over expression of IGF1R in infertile women with NCD-IMF, during the window of receptivity, may result in altered ability of uterine epithelial cells for blastocyst adhesion and subsequent implantation, which might lead to poor reproductive outcome in these women.

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