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Emmanuel Moyse, PhD; Monique Lyon, PhD; Geneviève Cordier, PhD; Jean-François Mornex, MD, PhD; Lionel Collet, MD, PhD; Patrick Froehlich, MD, PhD

Arch Otolaryngol Head Neck Surg. 2000;126:1105-1110.

Objective  To evaluate viral and cytokine signaling correlates of the persistent inflammation associated with chronic otitis media with effusion (OME).

Design  Prospective study.

Method  Reverse transcriptase–polymerase chain reaction targeting RNA viruses frequently associated with OME (respiratory syncytial virus and parainfluenza virus type 3, the proinflammatory cytokines interleukin 8 and interleukin 1, and RANTES [regulated upon activation, normal T cell expressed and secreted]) was performed on mucosal biopsy samples and on samples of the liquid and cellular compartments of inflammatory exudates obtained from 26 children (49 ears) with infected middle ears. Ribonucleic acid extracted from rapidly frozen samples was reverse transcribed by Moloney murine leukemia virus reverse transcriptase and amplified for 35 cycles using previously validated primers. Amplicons were evaluated by molecular size after agarose gel electrophoresis with ethidium bromide.

Results  Most children had evidence of the presence of an RNA virus in at least one specimen. Respiratory syncytial virus was present in 40% and parainfluenza virus type 3 in 8% of effusions. Interleukin 8 messenger RNA was present in 21% of inflammatory exudates but never in cells from the mucosal biopsy samples.

Conclusions  Our data support a viral contribution to the cause of OME and suggest that the inflammatory cytokines observed derive more from cells in the inflammatory exudate than from those in the middle ear mucosa.

From Neurosciences & Systèmes Sensoriels, Université Claude Bernard, Villeurbanne (Drs Moyse and Collet), Laboratoire d'Immunologie et de Biologie Pulmonaire, Université Claude Bernard et Service de Pneumologie, Hôpital Louis Pradel, Bron (Drs Lyon, Cordier, and Mornex), and Département d'ORL et de Chirurgie Cervico-Faciale, Hôpital E. Herriot, Lyon (Drs Collet and Froehlich), France.

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