IMMUNOLOGICAL REACTIONS BETWEEN DEXTRAN POLYSACCHARIDE AND SOME BACTERIAL ANTISERA

Immunological Reactions between Dextran Polysaccharide and Some Bacterial Antisera

Dextran, the synthetic polysaccharide produced by Leuconostoc mesenterioides from saccharose, reacts immunologically with antisera from pneumococci, some of the Sahnonella and some of the types of Streptococcus viridans (Bargen). This immunological relationship is independent of the specific antipolysaccharide antibodies of these sera, suggesting the existence of a distinct antibody produced by...

Immunological Reactions between Agar-agar and Some Bacterial Antisera

1. As found by Sordelli and Mayer, agar adsorbed on bacteria produces agar-reacting antibodies in animals injected with these organisms. 2. False cross-agglutination and precipitin reactions can be produced in sera containing agar-reacting antibodies by organisms grown on agar. Zozaya's publication in this field (3) requires partial revision on this account. 3. There is suggestive immunological...

Biological and Immunological Reactions in Parasitic Diseases

Processed antigen reacts selectively with lymphocytes bearing .appropriate surface immunoglobulin molecules resulting in the clonal proliferation of these cells, produc­ing circulating immunoglobulin (humoral immunity) or non-circulating immunoglobulins (cellular immunity).  High levels of circulating immunoglobulins (lgM & lgG) occur in protozoa and helminths infections. Reaginic antibodies a...

Some Physical and Immunological Reactions of RBC 'Juice' and Stroma

The following experiments with rbc juice and stroma were undertaken to answer two questions : 1. Is the Hb in solution inert with an antiserum-protein serum and a blood-group specific serum ? 2. Can anti-rbc serum (such as antiRh serum, and anti-M&N fluids) be prepared from debris instead of whole cells which may not be compatible with the blood of the animal injected ? The first question is of...

Some immunological interactions between mother and foetus.