Thrombophilia screen included protein S, protein C, antithrombin, paroxysmal nocturnal hemoglobinuria (flow cytometry with CD55
, CD59, and fluoresce-in-labeled proaerolysin (FLAER) expression), and JAK2 mutation.
6% granulocytes and 94% of RBCs were negative for CD55
Flow cytometry examination CD55
and CD59 (PNH disease)
coli could be explained by a temporary increase in the expression of tissue receptor decay accelerating factor (DAF), also called CD55
, which is upregulated by progesterone.
Therefore, we performed a systematic study of mCRP expression in colon cancer by analyzing the expression density of CD46, CD55
, and CD59, in addition to other variables in patients with colon cancer, including age, sex, differentiation, and staging, in an attempt to provide insights into complement regulation in colon cancer.
One of these surface proteins, CD55
, was found on the cells of healthy blood vessels.
Trimesurus flavoviridis (habu snake) venom induces human erythrocyte lysis through enzymatic lypolisis, complement activation and decreased membrane expression of CD55
and CD59) that prevent complement activation (7).
In particular, the expression of CD55
and CD59 (15) that are partially lost by RBCs during in vitro and in vivo aging  were measured.
The disorder causes partial or complete deficiency of the complement inhibitors CD55
and CD59, which results in red blood cell susceptibility to terminal complement-mediated lysis.
In an effort to understand the pathogenesis of anaemia in Pf infection we studied the relationship between expression level of CD35, CD55
and CD59 with haemoglobin status in a group of malaria cases from three regions of India, namely Assam, Goa and Chennai.
Deficiencies in red blood cell CR1 and CD55
in children with SMA were accompanied by a marked decline in immune complex binding capacity and increased C3b deposition in vivo and ex vivo.