Cytomegalovirus antibody avidity in allogeneic bone marrow recipients: Evidence for primary or secondary humoral responses depending on donor immune status
✍ Scribed by Lutz, E.; Ward, K.N.; Szydlo, R.; Goldman, J.M.
- Book ID
- 102646526
- Publisher
- John Wiley and Sons
- Year
- 1996
- Tongue
- English
- Weight
- 545 KB
- Volume
- 49
- Category
- Article
- ISSN
- 0146-6615
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✦ Synopsis
The reconstitution of the human cytomegalovir u s (CMV) antibody response in CMV seropositive bone marrow transplant patients was investigated by comparing 11 patients whose donors were CMV seropositive with 8 whose donors were C M V seronegative. Evidence for primary or secondary responses to C M V was sought by determining IgG antibody avidity using an avidity index method, and antibody titre over a period of up to 3 years after transplant. For the patients whose donors were CMV seropositive, the results showed the characteristics of a secondary response, i.e., rising antibody titres of high avidity immediately after transplant. In contrast, the patients with CMV seronegative donors showed evidence of a primary antibody response usually occurring at about 250 days after transplant, i.e., rising antibody levels initially of low avidity maturing to high avidity over the following 100 to 200 days.
It is concluded that a secondary response and hence transfer of humoral immunity had occurred in those patients whose donor was C M V seropositive, whereas a delayed primary response occurred in those patients whose donor was C M V seronegative. o 1996 WiIey-Liss, Inc.