Liu, A.Y.-C., Fiske, W.W. and Chen, K.Y.  Regulation of cyclic AMP-binding protein in N-18 mouse neuroblastoma cells.  Cancer Res., 40, 4100-4108, 1980.Liu, A.Y.-C., Chan, T. and Chen, K.Y.  Induction of regulatory subunit of type cAMP-dependent protein kinase in differentiated N-18 mouse neuroblastoma cells.  Cancer Res., 41, 4579
-4587, 1981.

Chen, K.Y. and Verma, R.  Spermine specifically inhibits the phosphorylation of an 11,000-dalton nuclear protein in various cultured mammalian cell lines.  Biochem. Biophys.
Res. Commun., 118, 710-716,1984.

Liu, A.Y.-C. and Chen, K.Y.  Differential effects of the tumor promoter phorbol-12-myristate-13-acetate on the morphological and biochemical differentiation of N-18 mouse neuroblastoma cells.  J. Cell. Physiol. 125, 387-392, 1985.

Verma, R. and Chen, K.Y.  Spermine inhibits the phosphorylation of the11,000- and 10,000-dalton nuclear proteins catalyzed by nuclear kinase NI in NB-15 mouse neuroblastoma cells.  J. Biol. Chem. 261, 2890-2896, 1986.

Liu, A.Y.-C., Chang, Z.F. and Chen, K.Y.  Increased cAMP-dependent protein kinase activity in aging human diploid fibroblasts.  J. Cell. Physiol. 128, 149-154, 1986.

Liu, A.Y.-C., Kamalakannan, V. and Chen, K.Y. Identification of functional cAMP-dependent protein kinase in a'neurite-minus'mouse neuroblastoma cell line.  Biochim. Biophys. Acta, 928, 235-239, 1987.

Hsu, L., Jeng, A. and Chen, K.Y.  Induction of neurite outgrowth from chick embryonic ganglia explants by activators of protein kinase C.  Neuroscience Letter 99, 257-262, 1989.

Mehta, S., Hsu, L., Jeng, A. and Chen, K.Y.  Neurite outgrowth and protein phosphorylation in chick embryonic sensory ganglia induced by a brief exposure to 12-O-tetradecanoylphorbol-13-acetate.  J. Neurochem., 60, 972-981, 1993.

Verma, R. and Chen, K.Y.   Spermine stimulates the phosphorylation of the nuclear matrix proteins catalyzed by nuclear kinase II.  Frontiers in Bioscience, 2, a26-30, 1997.