Table II.

Frequency of GFP+ cells in the brains of WBM or HSC transplanted mice failing to express hematopoietic or microglial lineage markers

Engraftment
 modelAnimal
 no.Age at
 transplant
 or parabiosisNo. of cells
 transplantedDuration of
 survival after
 transplant/parabiosisInjury
 modelHematopoietic chimerism
 at death
 (% GFP+ PB leukocytes)GFP+ nonhematopoietic cells
 (CD45Mac or CD45Iba cells/
 total GFP+ cells [%])
WBM
   transplant1newborn1069 mono injury1311/281 (3.9%)
2newborn1069 mono injury54/167 (2.4%)
3adult1063 mono injury882/128 (1.6%)
4adult1063 mono injury631/282 (0.4%)
5adult1066.5 moKA930/102 (0%)
HSC
   transplant8adult13 mono injury722/128 (1.56%)
18adult15 mono injury620/84 (0%)
9adult14.5 moKA270/90 (0%)