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NEROFE--a novel human hormone-peptide with anti-cancer activity.

Posted on: 01/13/2011

J Exp Ther Oncol. 2010;8(4):327-39.

NEROFE--a novel human hormone-peptide with anti-cancer activity.

Sandler U, Devary O, Braitbard O, Ohana J, Kass G, Rubinstein AM, Friedman ZY, Devary Y.

Department of Computational Chemistry, Jerusalem College of Technology, Jerusalem, Israel.


We report the isolation of a novel Tumor-Cells Apoptosis Factor (Nerofe). We found that cDNA of this protein is expressed mainly in the human thymus and partially in the colon and in the frontal lobe of brain. Immunohistochemical studies localize Tumor-Cells Apoptosis Factor (TCApF) to the medulla and Hassal's corpuscles of the thymus gland, which are responsible for negative selection. Treatment of mice with induced AML terminates the cancer development and completely eliminates metastatic cell colonies from the bone marrow and the spleen that reduces probability of the cancer return. We find that TCApF binds to the T1/ST2 receptor and activates caspases 8, 9 and 3 mediated apoptosis, together with activation of JNKinase and p38 MAPKinase. Application of TCApF to cells induced apoptosis in acute myeloid leukemia proliferating cells (U937 premeyloid cells), in human breast carcinoma (MCF7), human glioblastoma, human neuroblastoma, human prostate cancer and human lung cancer proliferating cells. In contrast, TCApF was unable to induce apoptosis in non-proliferating cells. The selectivity of TCApF-induced apoptosis is related to the level of T1/ST2 receptor expression. This is the first report linking the T1/ST2 receptor to apoptosis.

PMID: 21222365 [PubMed - in process]


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