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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Administration of a phorbol ester to patients with hematological malignancies: preliminary results from a phase I clinical trial of 12-O-tetradecanoylphorbol-13-acetate.

PURPOSE: Phorbol esters are capable of inducing a broad range of cellular effects,including the maturation/differentiation of hematopoietic cell lines (E. Huberman and M. F. Callaham, Proc. Natl. Acad. Sci. USA, 76: 1293-1297, 1979; J. Lotem and L. Sachs, Proc. Natl. Acad. Sci. USA, 76: 5158-5162, 1979; G. Rovera et al., Proc. Natl. Acad. Sci. USA, 76: 2779-2783, 1979; H. P. Koeffler, J. Clin. Investig., 66: 1101-1108, 1980). The ability to induce this differentiation at very low concentrations stimulated investigators to administer a phorbol ester, 12-O-tetradecanoylphorbol-13-acetate (TPA), to patients with myeloid leukemias in the People's Republic of China (Z. T. Han et al., Proc. Natl. Acad. Sci. USA, 95: 5357-5361, 1998). The tolerability of this therapy in China prompted Phase I studies of TPA in the United States. The purpose of this report is to demonstrate the tolerance of TPA at doses that result in detectable biological activity in blood and malignant cells. EXPERIMENTAL DESIGN: TPA was administered to patients with relapsed/refractory hematological malignancies. RESULTS: Phenotypic effects were detected in malignant cells and TPA-associated biological activity was present in blood for up to several hours after the infusion. CONCLUSIONS: These studies confirm the feasibility of TPA administration to humans and establish the foundation for the development of phorbol esters as therapy for patients with a variety of malignant and nonmalignant disorders.[1]

References

  1. Administration of a phorbol ester to patients with hematological malignancies: preliminary results from a phase I clinical trial of 12-O-tetradecanoylphorbol-13-acetate. Strair, R.K., Schaar, D., Goodell, L., Aisner, J., Chin, K.V., Eid, J., Senzon, R., Cui, X.X., Han, Z.T., Knox, B., Rabson, A.B., Chang, R., Conney, A. Clin. Cancer Res. (2002) [Pubmed]
 
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