Predominant intracellular expression of CXCR4 and CCR5 in purified primary trophoblast cells from first trimester and term human placentae. - Archive ouverte HAL Access content directly
Journal Articles American Journal of Reproductive Immunology Year : 2003

Predominant intracellular expression of CXCR4 and CCR5 in purified primary trophoblast cells from first trimester and term human placentae.

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Abstract

PROBLEM: The aim of the present study was to define the expression of CXCR4 and CCR5 on non-cultured non-stimulated primary human trophoblast cells (TCs) immediately after their immunopurification. METHOD OF STUDY: We have evaluated by flow cytometric analysis and immunofluorescence, highly purified primary TCs prepared from first trimester (8.2 +/- 0.3 weeks, n = 15) and term (Caesarean section, n = 10) placentae for the cell surface and intracellular expression of CXCR4 and CCR5. RESULTS: There was a high level of individual variability for CXCR4 and CCR5 expression between trophoblast batches. In first trimester and term placentae TCs, we found a greater number of TCs preparations expressing intracellular CXCR4 than CCR5 (P < 0.05). Both receptors were predominantly localized in the intracellular compartment of TCs, whatever if isolated from first trimester or term placentae. CONCLUSIONS: The functional consequences of the predominance of CXCR4 expression and of cellular addressing are briefly discussed.

Dates and versions

pasteur-00166956 , version 1 (13-08-2007)

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Juan Maldonado-Estrada, Elisabeth Menu, Pierre Roques, Bruno Vaslin, Alice Dautry-Varsat, et al.. Predominant intracellular expression of CXCR4 and CCR5 in purified primary trophoblast cells from first trimester and term human placentae.. American Journal of Reproductive Immunology, 2003, 50 (4), pp.291-301. ⟨10.1034/j.1600-0897.2003.00084.x⟩. ⟨pasteur-00166956⟩

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