A Fast and Reliable Method to Isolate Human Placental Macrophages

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Abstract

Macrophages are specialized cells involved in recognition, uptake, and destruction of microorganisms. Human placental macrophages are poorly investigated because of the lack of a convenient protocol for their isolation. Here, we present a straightforward and reliable method to isolate macrophages from full-term human placentas. After enzymatic digestion of placental tissue and centrifugation of the cell suspension on a Ficoll cushion, placental macrophages are selected using magnetic beads coated with anti-CD14 antibodies. Isolated cells are characterized by flow cytometry. Ninety eight percent of isolated CD14+ placental macrophages also express the macrophage marker CD68. Thus, this efficient and reliable method yields placental macrophages at high purity and sufficient quantity for functional studies. © 2019 by John Wiley & Sons, Inc.

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