Wiktionary (0.00 / 0 votes) Rate this definition: kaleidoscopic (Adjective). Of, relating to, or produced by a kaleidoscope. kaleidoscopic (Adjective). Brightly coloured and continuously changing in pattern, as if in a kaleidoscope.
The Duffy blood group antigen serves not only as blood group antigen, but also as a receptor for a family of proinflammatory cytokines termed chemokines, and as a receptor for Plasmodium vivax malaria parasites.ndividuals with the Duffy-negative phenotype are resistant to P. vivax invasion, and the molecular mechanism that gives rise to the phenotype Fy(a-b -) in black individuals has been associated with a point mutation - 33TC expressed in homozigosity in the FYB allele [5].
2. an antigen present on human erythrocytes that is exposed by treatment with neuraminidase or contact with certain bacteria. see CD a. T-dependent antigen one that requires the presence of helper T cells to stimulate antibody production by B cells; most antigens are T-dependent.T-independent antigen an antigen that can trigger B lymphocytes to produce antibodies without the participation of T lymphocytes.epatitis B core antigen (HBcAg) a core protein antigen of the hepatitis B virus present inside complete virions (Dane particles) and in the nuclei of infected hepatic cells, indicating the presence of reproducing hepatitis B virus.