Abstract
The inhibitory effects of hydroxychloroquine on leucocyte motility have been compared with those of prednisolone. It has been shown to have similar potency to prednisolone as an inhibitor of human neutrophil and monocyte motility. Hydroxychloroquine has then been compared with placebo in the prevention of an immune-complex experimental colitis in rabbits. Rectal biopsies were taken from rabbits 24 hours after initiation of colitis, coded, and graded histologically. The summated gradings for acute inflammation and goblet cell depletion had worsened more in the control rabbits (mean grade +6.7) than in the treated rabbits (mean grade +1.8) P less than 0.05. There was no difference in the mononuclear cell infiltrate between the two groups. Hydroxychloroquine, which is a potent inhibitor of leucocyte motility, effectively prevents the acute inflammatory infiltrate in this experimental colitis model and therefore merits trial in human ulcerative colitis.
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- Baur H., Kasperek S., Pfaff E. Criteria of viability of isolated liver cells. Hoppe Seylers Z Physiol Chem. 1975 Jun;356(6):827–838. doi: 10.1515/bchm2.1975.356.s1.827. [DOI] [PubMed] [Google Scholar]
- Böyum A. Isolation of mononuclear cells and granulocytes from human blood. Isolation of monuclear cells by one centrifugation, and of granulocytes by combining centrifugation and sedimentation at 1 g. Scand J Clin Lab Invest Suppl. 1968;97:77–89. [PubMed] [Google Scholar]
- HURVITZ D., HIRSCHHORN K. SUPPRESSION OF IN VITRO LYMPHOCYTE RESPONSES BY CHLOROQUINE. N Engl J Med. 1965 Jul 1;273:23–26. doi: 10.1056/NEJM196507012730105. [DOI] [PubMed] [Google Scholar]
- Hodgson H. J., Potter B. J., Skinner J., Jewell D. P. Immune-complex mediated colitis in rabbits. An experimental model. Gut. 1978 Mar;19(3):225–232. doi: 10.1136/gut.19.3.225. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Ignarro L. J., Colombo C. Enzyme release from guinea-pig polymorphonuclear leucocyte lysosomes inhibited in vitro by anti-inflammatory drugs. Nat New Biol. 1972 Oct 4;239(92):155–157. doi: 10.1038/newbio239155a0. [DOI] [PubMed] [Google Scholar]
- KURNICK N. B., RADCLIFFE I. E. Reaction between DNA and quinacrine and other antimalarials. J Lab Clin Med. 1962 Oct;60:669–688. [PubMed] [Google Scholar]
- Kruze D., Fehr K., Menninger H., Böni A. Effect of antirheumatic drugs on neutral protease from human leucocyte granules. Z Rheumatol. 1976 Sep-Oct;35(9-10):337–346. [PubMed] [Google Scholar]
- Laaksonen A. L., Koskiahde V., Juva K. Dosage of antimalarial drugs for children with juvenile rheumatoid arthritis and systemic lupus erythematosus. A clinical study with determination of serum concentrations of chloroquine and hydroxychloroquine. Scand J Rheumatol. 1974;3(2):103–108. doi: 10.3109/03009747409115809. [DOI] [PubMed] [Google Scholar]
- MANDEL E. H. THE SIDE-EFFECTS OF CHLOROQUINE AND HYDROXYCHLOROQUINE: RESULTS OF A COMPARATIVE STUDY IN VIVO. N Y State J Med. 1963 Nov 1;63:3111–3113. [PubMed] [Google Scholar]
- O'Brien R. L., Allison J. L., Hahn F. E. Evidence for intercalation of chloroquine into DNA. Biochim Biophys Acta. 1966 Dec 21;129(3):622–624. doi: 10.1016/0005-2787(66)90078-5. [DOI] [PubMed] [Google Scholar]
- PARKER F. S., IRVIN J. L. The interaction of chloroquine with nucleic acids and nucleoproteins. J Biol Chem. 1952 Dec;199(2):897–909. [PubMed] [Google Scholar]
- Panush R. S. Effects of certain antirheumatic drugs on normal human peripheral blood lymphocytes. Inhibition of mitogen- and antigen-stimulated incorporation of tritiated thymidine. Arthritis Rheum. 1976 Sep-Oct;19(5):907–917. doi: 10.1002/art.1780190512. [DOI] [PubMed] [Google Scholar]
- Rinehart J. J., Balcerzak S. P., Sagone A. L., LoBuglio A. F. Effects of corticosteroids on human monocyte function. J Clin Invest. 1974 Dec;54(6):1337–1343. doi: 10.1172/JCI107880. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Shearer R. V., Dubois E. L. Ocular changes induced by long-term hydroxychloroquine (plaquenil) therapy. Am J Ophthalmol. 1967 Aug;64(2):245–252. doi: 10.1016/0002-9394(67)92518-4. [DOI] [PubMed] [Google Scholar]
- TRUELOVE S. C., WITTS L. J. Cortisone in ulcerative colitis; final report on a therapeutic trial. Br Med J. 1955 Oct 29;2(4947):1041–1048. doi: 10.1136/bmj.2.4947.1041. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Truelove S. C., Jewell D. P. Intensive intravenous regimen for severe attacks of ulcerative colitis. Lancet. 1974 Jun 1;1(7866):1067–1070. doi: 10.1016/s0140-6736(74)90552-2. [DOI] [PubMed] [Google Scholar]
- WEISSMANN G. LABILIZATION AND STABILIZATION OF LYSOSOMES. Fed Proc. 1964 Sep-Oct;23:1038–1044. [PubMed] [Google Scholar]
- Ward P. A. The chemosuppression of chemotaxis. J Exp Med. 1966 Aug 1;124(2):209–226. doi: 10.1084/jem.124.2.209. [DOI] [PMC free article] [PubMed] [Google Scholar]


