title: Blood banking-induced senescent modifications on red blood cells.
abstract: In the past few years significant progress has been made in the extension of storage time for red blood cells (RBCs). Albeit this, membrane still undergoes damage during conservation under blood bank conditions, reducing red cell viability following transfusion. Consequently in this study, we evaluated the presence of senescence indices (appearing on RBCs during in vivo aging) on blood bank stored RBCs, more precisely the 4.1a/4.1b ratio and the binding of autologous immunoglobulins. Although not significant, a slight increase (0.995 +/- 0.070 to 1.008 +/- 0.058) was observed in the 4.1a/4.1b ratio during the first three weeks of storage. A rapid and significant (p less than 0.001) increase in the number of cell-bound IgGs (91 +/- 22 to 913 +/- 92), following incubation with purified autologous IgGs, was observed in the first days of storage. Thus, following transfusion, binding of autologous IgGs to stored RBCs could influence post-transfusion viability.
authors.affiliation: Université du Québec à Trois-Rivières, Québec, Canada.
authors.forename: R
authors.initials: R
authors.lastname: Gareau
authors.forename: G R
authors.initials: GR
authors.lastname: Brisson
authors.forename: H
authors.initials: H
authors.lastname: Goulet
authors.forename: J
authors.initials: J
authors.lastname: Dubé
mesh_terms: D000143:Acids; D001793:Blood Preservation / Q000009:adverse effects*; D005591:Chemical Fractionation; D003598:Cytoskeletal Proteins; D004905:Erythrocyte Aging / Q000276:immunology*; D004910:Erythrocyte Membrane / Q000737:chemistry / Q000276:immunology; D006801:Humans; D007074:Immunoglobulin G / Q000097:blood; D008565:Membrane Proteins / Q000097:blood; D009479:Neuropeptides
chemical_list: D000143:Acids; D003598:Cytoskeletal Proteins; D007074:Immunoglobulin G; D008565:Membrane Proteins; D009479:Neuropeptides; C028841:erythrocyte membrane band 4.1 protein; C120557:erythrocyte membrane protein band 4.1-like 1