Cytokine expression by first-trimester human chorionic villi.

Published

Journal Article

PROBLEM: Communication at the human maternal-fetal interface occurs by an intricate cytokine network. This study examines cytokine expression by normal first-trimester human chorionic villi. METHOD OF STUDY: Tissues were obtained at elective pregnancy terminations (7-9 weeks). Total RNA was isolated from chorionic villi by guanidinium isothiocynate-acid phenol extraction. A reverse transcriptase-polymerase chain reaction technique was used to examine cytokine expression. beta-Actin was used as the housekeeping gene, and mitogen-stimulated lymphocytes served as positive controls. RESULTS: beta-Actin was uniformly expressed by all chorionic villous samples. Interferon (IFN)-alpha and -beta also were highly expressed. Moderate expression was noted for interleukin (IL)-10, IL-6, tumor necrosis factor (TNF)-alpha, and IL-1 beta. In contrast, transforming growth factor-beta 1, IFN-gamma, IL-2, and IL-1 alpha were either weakly expressed or absent in first-trimester villi. CONCLUSIONS: Cytokines may contribute to pregnancy immunotolerance (IFN-alpha, IFN-beta, and IL-10), viral resistance (IFNs), hormone secretion (IL-1 and IL-6), and cellular remodeling (IFN-gamma and TNF-alpha) within the chorionic villous.

Full Text

Duke Authors

Cited Authors

  • Bennett, WA; Lagoo-Deenadayalan, S; Stopple, JA; Barber, WH; Hale, E; Brackin, MN; Cowan, BD

Published Date

  • November 1998

Published In

Volume / Issue

  • 40 / 5

Start / End Page

  • 309 - 318

PubMed ID

  • 9870073

Pubmed Central ID

  • 9870073

International Standard Serial Number (ISSN)

  • 1046-7408

Language

  • eng

Conference Location

  • Denmark