Introduction - biology of renal tubulo-interstitial cells, M.E. De Broe and M.F. Helbert; tissue culture of human renal epithelial cells using a defined serum-free growth formulation, D.A. Sens, C.J. Detrisac et al; isolation, culture and characterization of human renal proximal tubule and collecting duct cells, A.L. Trifillis; flow cytometric immunodissection of the human nephron in vivo and in vitro, M.J.F. Herbert, S. Dauwe and M.E. De Broe; renal interstitial fibroblast culture, C. Grupp and G.A. Muller; immortalized kidney cells derived from transgenic mice harbouring L-type pyruvate kinase and vimentin promoters, A. Vandewalle; modulation of cell differentiation in perfusion culture, W.W. Minuth, P. Steiner et al; renal tubular cells cultured from genetically modified animals, G. Friedlander, I. Runembert et al; antisense and kidney cell research, M.B. Ganz; protein overload activates proximal tubular cells to release vasoactive and inflammatory mediators, C. Zoja, A. Benigni and G. Remuzzi; tubular epithelial cells - a critical cell type in the regulation of renal inflammatory processes, C. Van Kooten, M.R. Daha and L.A. van Es; cytokine-stimulated nitric oxide production in the human renal proximal tubule and its modulation by natriuretic peptides - a novel immunomodulatory mechanism? P.K. Chatterjee, G.M. Hawksworth and J.S. MacLay; decreased degradation of collagen and fibronectin following exposure of proximal cells to glucose, A.O. Phillips, K. Morrisey et al; hypoxia-induced changes in extracellular matrix metabolism in renal cells, J.T. Norman, C. Orphanides et al; fibrogenic effects of cyclosporin A on the tubulointerstitium - role of cytokines and growth factors, D.W. Johnson, H.J. Saunders et al.