Abstract
In the preceding paper (Protein J. 25, pages 37–49, 2005), we reported the preparation and oxygen-binding properties of peptides that form stable complexes with heme mimic. The design of the peptides was based on the natural environment of the heme group in myoglobin (Mb) and in the α- and β-subunits of human adult hemoglobin (Hb). In the present work, the heme-peptides were each administered into mice, either as emulsions in adjuvant (both for injections and boosters) or intravenously as solutions in phosphate-buffered saline. Antibody (Ab) responses, monitored up to 14 weeks after the first administration, showed that when the heme-peptides were injected with adjuvant they stimulated Ab responses against the immunizing peptide, which in most cases bound to the correlate protein (Mb or Hb). However these heme-peptides were non-immunogenic when administered in PBS intravenously. It is concluded that heme-peptides:(a) would not trigger an adverse immune response if used for transfusion purposes.
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Abbreviations
- Ab:
-
antibody
- BSA:
-
bovine serum albumin
- Hb:
-
human hemoglobin A
- Mb:
-
myoglobin
- PBS:
-
0.15 M NaCl in 0.01 M sodium phosphate buffer, pH 7.20
- PPSFH:
-
pyrodoxalated polymerized, stroma-free human Hb
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Atassi, M.Z., Childress, C. Immunogenicity of Heme Complexes of Peptides Designed to Mimic the Heme Environment of Myoglobin and Hemoglobin. Protein J 24, 51–56 (2005). https://doi.org/10.1007/s10930-004-0605-x
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DOI: https://doi.org/10.1007/s10930-004-0605-x