- A distinct pathway of cell-mediated apoptosis initiated by granulysin. Kaspar, A.A., Okada, S., Kumar, J., Poulain, F.R., Drouvalakis, K.A., Kelekar, A., Hanson, D.A., Kluck, R.M., Hitoshi, Y., Johnson, D.E., Froelich, C.J., Thompson, C.B., Newmeyer, D.D., Anel, A., Clayberger, C., Krensky, A.M. J. Immunol. (2001)