Differential gene expression during placentation in pregnancies conceived with different fertility treatments compared with spontaneous pregnancies

The transcriptome during placentation of pregnancies conceived using infertility treatment is like that of spontaneously conceived pregnancies, with gene expression differences found mainly in the non-in vitro fertilization fertility treatment pregnancies.

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Volume 111, Issue 3, Pages 535–546

Authors:

Bora Lee, Ph.D., Alex F. Koeppel, Ph.D., Erica T. Wang, M.D., M.A.S., Tania L. Gonzalez, Ph.D., Tianyanxin Sun, Ph.D., Lindsay Kroener, M.D., Yayu Lin, M.S., Nikhil V. Joshi, M.D., Tejal Ghadiali, B.S., Stephen D. Turner, Ph.D., Stephen S. Rich, Ph.D., Charles R. Farber, Ph.D., Jerome I. Rotter, M.D., Yii-Der Ida Chen, Ph.D., Mark O. Goodarzi, M.D., Ph.D., Seth Guller, Ph.D., Bryna Harwood, M.D., Tania B. Serna, M.D., John Williams III, M.D., Margareta D. Pisarska, M.D.

Abstract:

Objective

To identify differences in the transcriptomic profiles during placentation from pregnancies conceived spontaneously vs. those with infertility using non-in vitro fertilization (IVF) fertility treatment (NIFT) or IVF.

Design

Cohort study.

Setting

Academic medical center.

Patient(s)

Women undergoing chorionic villus sampling at gestational age 11–13 weeks (n = 141), with pregnancies that were conceived spontaneously (n = 74), with NIFT (n = 33), or with IVF (n = 34), resulting in the delivery of viable offspring.

Intervention(s)

Collection of chorionic villus samples from women who conceived spontaneously, with NIFT, or with IVF for gene expression analysis using RNA sequencing.

Main Outcome Measure(s)

Baseline maternal, paternal, and fetal demographics, maternal medical conditions, pregnancy complications, and outcomes. Differential gene expression of first-trimester placenta.

Result(s)

There were few differences in the transcriptome of first-trimester placenta from NIFT, IVF, and spontaneous pregnancies. There was one protein-coding differentially expressed gene (DEG) between the spontaneous and infertility groups, CACNA1I, one protein-coding DEG between the spontaneous and IVF groups, CACNA1I, and five protein-coding DEGs between the NIFT and IVF groups, SLC18A2CCL21FXYD2PAEP, and DNER.

Conclusion(s)

This is the first and largest study looking at transcriptomic profiles of first-trimester placenta demonstrating similar transcriptomic profiles in pregnancies conceived using NIFT or IVF and spontaneous conceptions. Gene expression differences found to be highest in the NIFT group suggest that the underlying infertility, in addition to treatment-related factors, may contribute to the observed gene expression profiles.


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Fertility and Sterility

Editorial Office, American Society for Reproductive Medicine

Fertility and Sterility® is an international journal for obstetricians, gynecologists, reproductive endocrinologists, urologists, basic scientists and others who treat and investigate problems of infertility and human reproductive disorders. The journal publishes juried original scientific articles in clinical and laboratory research relevant to reproductive endocrinology, urology, andrology, physiology, immunology, genetics, contraception, and menopause. Fertility and Sterility® encourages and supports meaningful basic and clinical research, and facilitates and promotes excellence in professional education, in the field of reproductive medicine.

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