Abstract
Experimental models of autoimmune uveitis are consistently associated with pinealitis. To investigate the interaction between the neuroendocrine and immune systems in humans with uveitis, we measured serum levels of the predominant pineal hormone melatonin (MEL), prolactin (PRL) and interleukin-2 (IL-2). A total of 100 patients with different forms of uveitis and 30 age-matched, healthy blood donors were evaluated retrospectively. The day-time MEL was reduced significantly (P ≤ 0.01) in patients with iritis and iridocyclitis, and highly significantly (P ≤ 0.001) in patients with intermediate uveitis, chorioretinitis and panuveitis. In 38% of patients day-time MEL levels in plasma were below the limit of detection. PRL was significantly reduced (P <0.01) in patients with intermediate uveitis. IL-2 was reduced to about 50% of control values in all groups of patients. The results suggest a possible neuroendocrine-immune interaction in uveitis patients.
Similar content being viewed by others
References
Angeli A, Terzolo M, Piovesan A, Torta M, Buniva T, Paccotti P, Revelli A, Guidetti D, Cassoni P, Massobrio M (1991) Evidence for a sex-specific facilitatory effect of melatonin on prolactin secretion. Is pineal-prolactin interaction relevant to the clinical course of breast cancer? In: Fraschini F, Reiter RJ (eds) Role of melatonin and pineal peptides in neuroimmunomodulation. Plenum Press, New York, pp 263–271
Arocker-Mettinger E, Asenbauer T, Ulbrich S, Grabner G (1992) Serum interleukin-2 receptor levels in uveitis. Invest Ophthalmol Vis Sci 32:66
Bateman A, Singh A, Kral T and Solomon S (1989) The immune-hypothalamic-pituitary-adrenal axis. Endocr Rev 10:92–112
Bernton EW, Meltzer MS, and Holaday JW (1988) Suppression of macrophage activation and T-lymphocyte function in hypoprolactinemic mice. Science 239:401–404
Bispink G, Zimmermann R, Weise HC, Leidenberger F (1990) Influence of melatonin on the sleep-independent component of prolactin secretion. J Pineal Res 8:97–106
Chiou GCY, Aimoto T, Chiou LY (1985) Melatonergic involvement in diurnal changes of intraocular pressure in rabbit eyes. Ophthalmic Res 17:373–378
Flückiger E, del Pozo E, von Werder K (1982) Prolactin. Physiology, pharmacology and clinical findings. (Monographs on endocrinology, vol 23) Springer, Berlin Heidelberg New York
Fraschini F, Reiter RJ (eds) (1991) Role of melatonin and pineal peptides in neuroimmunomodulation. (NATO ASI Series, Life Sciences, vol 204) Plenum Press, New York
Gregerson DS, Obritsch WF, Fling SP, Cameron ID (1986) S-antigen-specific rat T cell lines recognize peptide fragments of S-antigen and mediate experimental autoimmune uveoretinitis and pinealitis. J Immunol 136:2875–2882
Gupta D (1992) Pathophysiology of immune-neuroendocrine network. Neuroendocrinol Lett 14:1–19
Gupta D, Attanasio A (1988) Pathophysiology of pineal function in health and disease in children. Pineal Res Rev 6:261–300
Gupta D, Riedel L, Frick HI, Attanasio A, Ranke MB (1983) Circulating melatonin in children: in relation to puberty, endocrine disorders, functional tests and racial origin. Neuroendocrinol Lett 5:63–68
Hedner LP, Bynke G (1985) Endogenous iridocyclitis relieved during treatment with bromocriptine. Am J Ophthalmol 100:618–619
Illum N, Korf HW, Julian K, Rasmussen T, Herning M, Krabbe S (1992) Concurrent uveoretinitis and pineocytoma in a child suggests a causal relationship. Br J Ophthalmol 76:574–576
Iuvone PM (1988) Dopamine: a light-adaptive modulator of melatonin synthesis in the frog retina. In: Dopaminergic mechanisms in vision. Alan R. Liss, New York, pp 95–98
Kalsow CM, Dwyer AE, Smith AW, Nifong TP (1992) Pinealitis coincident with recurrent uveitis: immunohistochemical studies. Curr Eye Res [Suppl] 11:47–51
Kalsow CM, Dwyer AE, Smith AW, Nifong TP (1993) Pinealitis accompanying equine recurrent uveitis. Br J Ophthalmol 77:46–48
Linker-Israeli M, Bakke AC, Kitridou RC, Gendler S, Gillis S, Horwitz DA (1983) Defective production of IL-1 and IL-2 in patients with systemic lupus erythematodes (SLE). J Immunol 130:2651–2655
Lissoni P, Resentini M, Mauri R, De Medici C, Morabito F, Esposti D, Di Bella L, Esposti G, Rossi D, Parravicini L, Legname G, Fraschini F (1986) Effect of an acute injection of melatonin of the basal secretion of hypophyseal hormones in prepubertal and pubertal healthy subjects. Acta Endocrinol (Copenh) 111:305–311
Lissoni P, Barni S, Tancini G, Crisponi S, Cattaneo G, Pellinzoni F, Eposti D, Eposti G, Lucini V, Fraschini F (1988) Pineal-immune system connection: possible existence of a feed-back mechanism between interleukin-2 production and melatonin secretion. J Endocrinol Invest 11 [Suppl 1]:114–118
Maestroni GJM, Conti A, Pierpaoli W (1988) Role of the pineal gland in immunity. III: Melatonin antagonizes the immunosuppressive effect of acute stress via an opiatergic mechanism. Immunology 63:465–469
Maestroni GJM, Conti A, Lissoni P (1992) Melatonin and the immune system. Exp Eye Res [Suppl] 55:57
Martin XD, Malina HZ, Brennan MC, Hendrickson PH, Lichter PR (1992) The ciliary body — the third organ found to synthesize indoleamines in human. Eur J Ophthalmol 2:67–72
Merchant A, Soukiasian SH, Zhao TZ, Foster CS (1991) Aqueous soluble interleukin-2 receptor (sIL-2R) in clinically quiescent uveitis. Invest Ophthalmol Vis Sci [Suppl] 31:677
Mochizuki M, Charley J, Kuwabara T, Nussenblatt RB, Gery I (1983) Involvement of the pineal gland in rats with experimental autoimmune uveitis. Invest Ophthalmol Vis Sci 24:1333–1338
Palestine AG, Muellenberg-Coulombre CG, Kim MK, Gelato MC, Nussenblatt RB (1987) Bromocriptine and low dose cyclosporine in the treatment of experimental autoimmune uveitis in the rat. J Clin Invest 79:1078–1081
Pang SF, Allen AE (1986) Extrapineal melatonin in the retina: Its regulation and physiological function. Pineal Res Rev 4:55–58
Pleyer U, Gupta D, Weidle EG, Lisch W, Zierhut M, Thiel HJ (1991) Elevated prolactin levels in human aqueous humor in patients with anterior uveitis. Graefe's Arch Clin Exp Ophthalmology 229:447–451
Rohde BH, McLaughlin MA, Chiou LY (1985) Existence and role of endogenous ocular melatonin. J Ocul Pharmacol 2:235–243
Rollag MD, Niswender GD (1976) Radioimmunoassay of serum concentrations of melatonin in sheep exposed to different lighting regimens. Endocrinology 98:482–489
Rowland JM, Potter DE, Reiter RJ (1981) Circadian rhythm in intraocular pressure: a rabbit model. Curr Eye Res 1:169–173
Shirakawa H, Ogino N (1987) Novel activity of melatonin. Its chemotactic effect of retinal pigment epithelial cells. Ophthalmic Res 19:226–229
Smith SD, Gregory DS (1989) A circadian rhythm of aqueous flow underlies the circadian rhythm of IOP in NZW rabbits. Invest Ophthalmol Vis Sci 30:775–778
Touitou Y, Le Hoang P, Claustrat B, Attye T, Auzeby A, Brun J, Bogdan A, Touitou C (1986) Decreased nocturnal plasma melatonin peak in patients with a functional alteration of the retina in relation with uveitis. Neurosci Lett 70:170–174
Waldmann TA, Goldmann CK, Robb RJ, Depper JM, Leonard WJ, Sharrow SO, Bongiovanni KF, Korsmeyer SJ, Greene WC (1984) Expression of interleukin-2-receptors on activated human B cells. J Exp Med 160:1450–1466
Wiechmann AF (1986) Melatonin: parallels in pineal gland and retina. Exp Eye Res 42:507–527
Wiechmann AF, O'Steen WK (1992) Melatonin increases photoreceptor susceptibility to light-induced damage. Invest Ophthalmol Vis Sci 33:1894–1902
Zierhut M, Thiel HJ, Pleyer U, Waetjen R, Weidle EG (1991) Bromocriptin in der Therapie der chronisch rezidivierenden Uveitis anterior. Fortschr Ophthalmol 88:161–164
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Wollmann, H.A., Pleyer, U., Friedel, S. et al. Neuroendocrine alterations in uveitis patients. Graefe's Arch Clin Exp Ophthalmol 232, 297–301 (1994). https://doi.org/10.1007/BF00194479
Received:
Revised:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00194479