Abstract
The concentration of cyclosporine in the vitreous after intravitreal injection of 100 micrograms of either free or liposome-bound cyclosporine was studied in albino rabbits. We found that the half-life of free cyclosporine was about 6 hours and that of liposome-bound cyclosporine was about 3 days. The finding indicates that liposome-bound cyclosporine prolongs the availability of the drug.
Similar content being viewed by others
References
Abel R, Boyle GH. Dissecting ocular tissue for intraocular drug studies. Invest Ophthalmol Vis Sci 1976; 15: 216–19.
Alghadyan AA, Peyman GA, Khoobehi B. Liposome-bound cyclosporin. Part II. Retinal toxicity intravitreal injection, this issue; 99–101.
Alghadyan AA, Peyman GA, Khoobehi B et al. Liposome-bound cyclosporin: aqueous and vitreous level after subconjunctival injection, this issue; 95–98.
Bell TAG, Hunnisett AG. Cyclosporin A: tissue levels following topical and systemic administration to rabbits. Br J Ophthalmol 1986; 70: 852–55.
Bio-Rad instruction manual. Cyclosporin by HPLC test. September, 1986.
Fishman PG, Peyman GA, Lesar T. Intravitreal liposome-encapsulated gentamicin in a rabbit model. Prolonged therapeutic levels. Invest Ophthalmol Vis Sci 1986; 27: 1103–06.
Grisolano J, Peyman GA. Retinal toxicity study of intravitreal injection of cyclosporin. Ophthalmic Surg 1986; 17: 155–6.
Liu KR, Peyman GA, Khoobehi B et al. Intravitreal liposome-encapsulated trifluorothymidine in a rabbit model. Ophthalmology 1987; 84: 1155–59.
Magin RL, Weinstein JN. Design and characterization of temperature sensitive liposomes. In: Gregoriadis G. ed. Liposomes technology, Vol III. Boca Raton, FL: CRC Press, 1983: 137–55.
Magin RL, Niesman M. Temperature-dependent permeability of large unilamellar liposomes. Chem Phys Lipids 1984; 34: 245–56.
Mosteller WM, Gebhardt BM, Hamilton AM, Kaufman HE. Penetration of topical cyclosporine into the rabbit cornea, aqueous humor, and serum. Arch Ophthalmol 1985; 103: 101–2.
Nussenblatt RB, Palestine AG. Cyclosporine, immunology, pharmacology, and therapeutic uses. Surv Ophthalmol 1986; 31: 159–69.
Oh JO, Minasi P, Grabrer G et al. Suppression of secondary herpes simplex uveitis by cyclosporin. Invest Ophthalmol Vis Sci 1985; 26: 494–500.
Palestine AG, Nussenblatt RB, Chan CC. Cyclosporine penetration into the anterior chamber and cerebral spinal fluid. Am J Ophthalmol 1985; 99: 210–11.
Szoka F, Papahadjopoulos D. Procedure for preparation of liposomes with large internal aqueous space and high capture by reverse-phase evaporation. Proc Natl Acad Sci USA 1978; 75: 4194–8.
Wiederhalt M, Kossendrup D, Schulz W, Hoffman F. Pharmacokinetic of topical cyclosporin A in rabbit eye. Invest Ophthalmol Vis Sci 1986; 27: 424–519.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Alghadyan, A.A., Peyman, G.A., Khoobehi, B. et al. Liposome-bound cyclosporine: Clearance after intravitreal injection. Int Ophthalmol 12, 109–112 (1988). https://doi.org/10.1007/BF00137135
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00137135