- The level of TACI gene expression in myeloma cells is associated with a signature of microenvironment dependence versus a plasmablastic signature. Moreaux, J., Cremer, F.W., Reme, T., Raab, M., Mahtouk, K., Kaukel, P., Pantesco, V., De Vos, J., Jourdan, E., Jauch, A., Legouffe, E., Moos, M., Fiol, G., Goldschmidt, H., Rossi, J.F., Hose, D., Klein, B. Blood (2005)