Improved Killing of Human High-Grade Glioma Cells by Combining Ionizing Radiation with Oncolytic Parvovirus H-1 Infection

Table 2

Titer of infectious virus particles in the supernatant of irradiated (10 Gy) or nonirradiated (0 Gy) human high-grade glioma cell lines 1 hour and 3 days post H-1PV infection.

		1 hour p.i.	3 days p.i.
NCH-37	10 Gy	1: 100	1: 10,000
	0 Gy	1: 10	1: 1,000
NCH-82	10 Gy	1: 100	1: 10,000
	0 Gy	1: 100	1: 10,000
NCH-89	10 Gy	1: 100	1: 10,000
	0 Gy	1: 100	1: 10,000
NCH-307	in vivo*	1: 10	1: 1,000

*in vivo irradiated recurrent glioblastoma cell line NCH-307 was not irradiated in vitro.