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Tumor-inhibiting protein could be effective in treating leukemia
Date:7/14/2008

cytic leukemia cells into a normal, macrophage-like phenotype," he said.

"This indicates perhaps a new therapeutic application for this protein, that it could differentiate hematologic malignancies into a normal-like state, allowing then for chemotherapy because normal cells are susceptible to chemotherapy treatment," said Tuszynski, who is also a member of the Sol Sherry Thrombosis Research Center in Temple's School of Medicine.

He added, however, that Angiocidin must remain present with the differentiated cells or they will revert back to their leukemia phenotype. "We haven't repaired the genetic abnormality in the cell, but what we have done is push them into a more normal phenotype that could then be treated more easily."

Tuszynski also said that the research demonstrates the ability of Angiocidin to stimulate the body's immune system by differentiating monocytic cells into macrophages, which function to ingest bacteria and protein debris as part of the immune system.

"We did gene array analysis of the differentiated versus the undifferentiated cells and we discovered that there were many genes characteristic of immune cells that were up-regulated in the differentiated leukemia cells," he said. "That Angiocidin can stimulate differentiation and stimulate the immune system is basically a new activity that we discovered with this protein that we had never really anticipated before."


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Contact: Preston M. Moretz
pmoretz@temple.edu
215-204-4380
Temple University
Source:Eurekalert

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