Potent antimycobacterial activity of the pyridoxal isonicotinoyl hydrazone analog 2-pyridylcarboxaldehyde isonicotinoyl hydrazone: a lipophilic transport vehicle for isonicotinic acid hydrazide.

Potent Anti-Mycobacterial Activity of the Pyridoxal Isonicotinoyl Hydrazone Analogue, 2- Pyridylcarboxaldehyde Isonicotinoyl Hydrazone: A Lipophilic Transport Vehicle for Isonicotinic Acid Hydrazide

A lipophilic iron chelator can replace transferrin as a stimulator of cell proliferation and differentiation

Of the different growth supplements used in chemically defined media, only transferrin is required for differentiation of tubules in the embryonic mouse metanephros. Since transferrin is an iron-carrying protein, we asked whether iron is crucial for tubulogenesis. Differentiation of metanephric tubules both in whole embryonic kidneys and in a transfilter system was studied. The tissues were gro...

The potential of iron chelators of the pyridoxal isonicotinoyl hydrazone class as effective antiproliferative agents II: the mechanism of action of ligands derived from salicylaldehyde benzoyl hydrazone and 2-hydroxy-1-naphthylaldehyde benzoyl hydrazone.

We have recently screened 36 analogues of the lipophilic iron (Fe) chelator, pyridoxal isonicotinoyl hydrazone (PIH), for their antiproliferative effect (Richardson et al, Blood 86:4295, 1995). Of these compounds, 1 chelator derived from salicylaldehyde benzoyl hydrazone (206) and 4 ligands derived from 2-hydroxy-1-naphthylaldehyde benzoyl hydrazone (308, 309, 311, and 315) showed pronounced an...

The effect of new lipophilic chelators on the activities of cytosolic reductases and P450 cytochromes involved in the metabolism of anthracycline antibiotics: studies in vitro.

A major obstacle to the therapeutic use of anthracyclines, highly effective anticancer agents, is the fact that their administration results in dose-dependent cardiomyopathy. According to the currently accepted hypothesis, anthracyclines injure the heart by generating oxygen free radicals. The ability of pyridoxal isonicotinoyl hydrazone (PIH) and salicylaldehyde isonicotinoyl hydrazone (SIH) -...

Effects of Combined Chelation Treatment with Pyridoxal Isonicotinoyl Hydrazone (PIH) Analogs and Deferoxamine in Hypertransfused Rats and in Iron-Loaded Rat Heart Cells Running Head: Combined PIH analog and DFO Chelation Treatment Heading: Red Cells

Gabriela Link , Prem Ponka, Abraham M Konijn, William Breuer, Z Ioav Cabantchik and Chaim Hershko . Department of Human Nutrition and Metabolism, Hebrew University Hadassah Medical School, Department of Biological Chemistry, Institute of Life Sciences, and Department of Medicine, Shaare Zedek Medical Center, Hebrew University of Jerusalem , Jerusalem, Israel and Lady Davis Institute for Medical...