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Article
December 1991

Role of Interleukin 6 in the Inflammatory Response After Cataract Surgery: An Experimental and Clinical Study

Author Affiliations

From the Ophthalmology Laboratory, Rangueil Hospital, Toulouse, France (Drs Malecaze, Chollet, and Arné); Sanofi Elf Bio Recherches, Protein Biochemistry Unit, Labège (Drs Cavrois, Vita, and Ferrara); and National Institute of Health and Medical Research, U326 (Pr CHAP), Toulouse, France (Drs Malecaze and Chollet).

Arch Ophthalmol. 1991;109(12):1681-1683. doi:10.1001/archopht.1991.01080120065027
Abstract

• The mechanism of uveitis following cataract surgery, which is mediated in part by the cyclooxygenase pathway, is complex, the complexity of which is likely to be due to several factors. We investigated the possible local involvement of interleukin 6 (IL-6) in this response. Using a specific bioassay, we showed a dramatic increase of IL-6 levels (>4 × 103 times) in all of the aqueous humors of 12 patients following cataract surgery. The IL-6 levels in serum samples were below detection limits, indicating a local production of this cytokine. In addition, the injection of highly purified recombinant interleukin 6 in the anterior chamber of the eye in rabbits resulted in an inflammatory response. These observations suggest that IL-6 may play a crucial role in the occurrence of inflammation after cataract surgery, and it may lead to new therapeutic approaches to this problem.

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