Abstract
Purpose. To clarify the mechanism of the renal clearance of recombinant human interleukin-11 (rhIL-11), we investigated the renal disposition characteristics of rhIL-11 in the perfused rat kidney.
Methods. The disposition characteristics of 111In-labeled rhIL-11 were analyzed using a single-pass indicator dilution technique and statistical moment analysis in the perfused rat kidney under filtering and nonfiltering conditions.
Results. Steady-state distribution volume (V d ) calculated from the venous outflow patterns of rhIL-11 at the doses of 0.3 to 10 μg/kidney was between 0.35 and 0.40 ml/g kidney. However, V d at the highest dose decreased to a value almost identical to that of bovine serum albumin, suggesting that there is a reversible and saturable interaction between the capillary wall and rhIL-11 molecule. In filtering kidney, a remarkable accumulation of rhIL-11 was observed while its urinary excretion was highly restricted at all doses. In nonfiltering kidney, rhIL-11 showed a decreased but still significant renal uptake. Taken together, the marked renal uptake of rhIL-11 may be explained by both efficient tubular reabsorption and significant uptake from the capillary side. These processes were not saturable within the tested dose range. These characteristics of rhIL-11 are likely based on non-specific electrostatic interaction with the tissues due to its cationic charge in the cytokine.
Conclusions. The renal disposition processes of rhIL-11 were clarified at organ level in a quantitative manner. These findings agree well with previous observations in an in vivo disposition study in mice.
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REFERENCES
T. Maack, V. Johnson, S. T. Kau, J. Figueiredo, and D. Sigulem. Kidney Int. 16:251–270 (1979).
R. Rabkin, M. P. Ryan, and W. C. Duckworth. Diabetologica 27:351–357 (1984).
A. Takagi, H. Masuda, Y. Takakura, and M. Hasuda. J. Pharmacol. Exp. Ther. 275:537–543 (1995).
K. Mihara, T. Hojo, M. Fujikawa, Y. Takakura, H. Sezaki, and M. Hashida. Pharm. Res. 10:823–827 (1993).
D. J. Hnatowich, W. W. Layne, and R. L. Childs. Int. J. Appl. Radiat. Isot. 33:327–332 (1982).
J. M. Nishiitsutsuji-Uwo, B. D. Ross, and B. D. Krebs. Biochem. J. 103:852 (1967).
K. Yamaoka, T. Nakagawa, and T. Uno. J. Pharmacokinet. Biopharm. 6:547–558 (1978).
T. Kakutani, K. Yamaoka, M. Hashida, and H. Sezaki. J. Pharmacokinet. Biopharm. 13:609–631 (1985).
F. H. Epstein, J. T. Brosnan, J. D. Tange, and B. D. Ross. Am. J. Physiol. 243:F284–F292 (1982).
S. Hall and M. Rowland. J. Pharmacol. Exp. Ther. 232:263–268 (1985).
D. Alcorn, K. R. Emslie, B. D. Ross, G. B. Ryan, and J. D. Tange. Kidney Int. 19:638–647 (1981).
J. R. Duncan, and M. J. Welch. J. Nucl. Med. 34:1728–1738 (1993).
D. C. Kim, B. Reitz, D. F. Carmichael, and D. C. Blowdow. J. Pharam. Sci. 84:575–580 (1995).
T. Maack. Am. J. Med. 58:57–64 (1975).
F. A. Carone, D. R. Peterson, S. Oparil, and T. N. Pullman. Kidney Int. 16:271–278 (1979).
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Takagi, A., Yabe, Y., Oka, Y. et al. Renal Disposition of Recombinant Human Interleukin-11 in the Isolated Perfused Rat Kidney. Pharm Res 14, 86–90 (1997). https://doi.org/10.1023/A:1012063602856
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DOI: https://doi.org/10.1023/A:1012063602856