1. Vascular Stem Cells and Tumor Angiogenesis - Pt. 2

    HPCs AND THEIR PROGENY The role of hematopoietic cells in tumor angiogenesis has recently received great attention. HPC from the bone marrow emigrate to the blood and tissues and differentiate to form cells of the innate and adaptive immune system. Tumor-infiltrating leukocytes can either protect against or promote tumor formation. The simplest example of the former is loss of immune...
  2. Vascular Stem Cells and Tumor Angiogenesis - Pt. 1

    Solid tumors are complex “organs” of cancer cells and a heterogeneous population of hematopoietic cells, mesenchymal cells, and endothelial cells. The cancer stem cell model proposes that tumor growth and progression is driven by rare populations of cancer stem cells
  3. Chymostatin (Protease Inhibitor) - Frequently Asked Questions

    Microbial product, chymostatin was discovered by H. Umezawaet al.v in 1970 by testing the anti-chymotrypsin activity of culture filtrates. Since the amino acid analysis of different samples gave variable ratios of phenylalanine, leucine, valine and isoleucine, chymostatin was considered to be a mixture of similar peptides with minor differences. Attempts to separate the components were unsuccessful.

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