PROTECTION OF MICE AGAINST IRRADIATION AND TETANUS BY HOMOLOGOUS BONE MARROW CELLS FROM HYPERIMMUNIZED DONORS
Journal Article
·
· Journal of Immunology (U.S.)
OSTI ID:4634620
Female mice of inbred strains (101 x C3H, BDF, C57B1, Balb/C, C3H, CBA, and LAF) were immunized with 0.2 ml of alum-precipitated tetanus toxoid subcutaneously, followed in 3 weeks by 0.2 ml of fluid toxoid intravenously. Four days after the last injection the marrow was mechanically dispersed and 10- 20 million marrow cells were inoculated intravenously into mice that had received on the previous day a lethal dose of whole-body x irradiation. The LD/sub 96/ for 30 days of each host strain was: BDF, 950 r; LAF, 950 r; 101 x C3H, 900 r; Balb/C, 800 r; C3H, 800 r; C57B1, 800 r; and CBA, 700 r. Mice in which isologous bone marrow cells from hyperimmunized donors were transferred to irradiated hosts showed a high degree of protection against irradiation in all strains studied. The percentage of 30-day irradiation survivors follows: C3H, 100%; 101 x C3H, 100%; CBA, 90%; BDF, 90%; Balb/C, 60%; and C57B1, 70%. There were no survivors among groups irradiated but not protected with bone marrow. The percentage of 7- day survivors after toxin challenge for each of 4 different strains receiving isologous cells from hyperimmunized donors ranged between 87 and 100%. Normal mice, similar in weight to the experimental groups (called toxin controls) all died of tetanus within 48 hr of challenge with toxin. Other results showed that homologous disease does not interfere significantly with the in vivo neutralization of tetanus toxin by antitoxin. It was concluded that homologous disease is a clinical entity which, in some donor-host combinations, is associated with a host-vs-graft reaction and, in one strain combination so far tested, is associated with a graft-vshost reaction. The experiments showed that the genetic relation between donor and host is a factor in determining which type of immunologic reaction may occur. (TCO)
- Research Organization:
- Jefferson Medical Coll., Philadelphia
- NSA Number:
- NSA-17-038802
- OSTI ID:
- 4634620
- Journal Information:
- Journal of Immunology (U.S.), Journal Name: Journal of Immunology (U.S.) Vol. Vol: 91; ISSN JOIMA
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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