LPS FROM PORPHYROMONAS GINGIVALIS AFFECTS TROPHOBLAST CELL FUNCTION AND IMMUNE- TROPHOBLAST INTERACTION

MARIA ROMAN MUÑOZ; FATIMA ISABEL MERECH; CLAUDIA PÉREZ LEIRÓS; DAIANA VOTA; ROSANNA RAMHORST; GUILLERMINA CALO; DANIEL PAPARINI; VANESA HAUK

Mar del Plata

Congreso; LXIII REUNIÓN DE LA SOCIEDAD ARGENTINA DE INVESTIGACIÓN CLÍNICA; 2018

Sociedad Argentina de Investigación Clínica

Placentation is associated with trophoblast cell differentiation into invasive phenotypes, activation of matrix metalloproteinases (MMP) as well as trophoblast-immune cell interaction to maintain immune homeostasis. Porphyromonas gingivalis is considered to be an important pathogen of periodontal disease that has been also implicated in adverse pregnancy outcome (APO). However the pathophysiology remains unknown. The aim of this study was to examined the effect of a virulence factor such as lipopolysaccharide from Porphyromonas gingivalis (PgLPS) on trophoblast cell function and trophoblast-immune interaction.Cell migration was studied in the human trophoblastic cell line from 1st trimester Swan-71 by wound healing assays and invasiveness in Matrigel-covered transwells. MMPs, TIMPs and cytokine expression was measured by RTqPCR. Whole blood was obtained from healthy donors and neutrophil purified on Ficoll-Triyosom gradient and Dextran sedimentation. The effect of Swan-71 treated with PgLPS conditioned media (CM) on neutrophil migration through transwells was quantified by Flow cytometry. PgLPS treatment (10ng/ml) significantly reduced cell invasion with more than five times increased expression of tissue inhibitor of matrix metalloproteinase -1 and -2 (P