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Biomedical subjects

J Marjanovic

Publications and source records attributed to J Marjanovic.

3 recordsLinked to original sources

The disbalance of alpha- and beta-globins in anemic Belgrade rat red blood cells.

The Belgrade Laboratory (b/b) rat has an autosomal mutation which in homozygous state induces severe anemia. This study was based on solubilization of total rat globin chains and their separation into alpha- and beta-globins using a 20% SDS polyacrylamide gel. These analyses demonstrated that the disbalance of alpha/beta globins in b/b red blood cells (RBC) is due to decreased level of alpha-globins. Iron-dextran administration corrected the level and globin ratio in b/b RBC thus confirming that the iron deficiency is the primary defect in b/b rats.

Anemia↗

Constitutive interferon expression from retroviral vector.

A genomic fragment with the human beta-interferon gene was cloned into a pL3-4, a defective Moloney murine leukemia virus (M-MuLV) vector. Here we show that clones selected after viral infection of mouse NIH 3T3 cells constitutively produced 128 IU/ml of human beta-interferon. Constitutive synthesis of retroviral RNA was confirmed by dot blot hybridization of RNA isolated from two of the selected clones. Poly(I) x poly(C) and cycloheximide induction resulted in an increased RNA level, but this was not reflected in an increased production of biologically active interferon.

3T3 Cells↗