Montgomery WM, Nance SJ, Donnelly SF, Brady TW, Anderson G, Mintz PD, Moulds MK, Daniels GL, Spring FA, Molina N, de Asis EA, Olivares E. MAM: a "new" high-incidence antigen found on multiple cell lines.
Transfusion 2000;
40:1132-9. [PMID:
10988318 DOI:
10.1046/j.1537-2995.2000.40091132.x]
[Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND
Three women have been identified with an antibody to a "new" high-incidence antigen found on multiple cell lines.
CASE REPORTS
The proposita, M.A.M., presented during her third pregnancy with an antibody reacting with all RBCs tested except her own. She delivered a thrombocytopenic infant with a 3+ DAT, but without symptoms of HDN. The second example, A.N., presented during her third pregnancy with an antibody reacting with all RBCs tested except her own and those of M.A.M. She delivered a slightly thrombocytopenic but severely anemic infant. The third example, F.K., a sister of A.N., has an antibody reacting with all RBCs tested except her own and those of M.A.M. and A.N.
CONCLUSION
This "new" high-incidence antigen has been named MAM and assigned high-incidence antigen number 901016 by the International Society of Blood Transfusion. The corresponding antibody, anti-MAM, has been shown to cause HDN and has the potential to shorten RBC survival after the transfusion of incompatible RBC units, as determined by monocyte monolayer assay. Immunoblotting and flow cytometry show that this new antibody reacts with various WBC lines in addition to RBCs. This antibody also appears to react with platelets in some assays.
Collapse