N-Terminal Truncation of TACO Inhibits PMA-Induced U937 Cell Adhesion

The effect of TACO 1-299, the N-terminal truncation of TACO, on phorbol 12-myristate 13-acetate (PMA)-induced U937 cell adhesion was investigated. Full-length TACO and several truncations were overexpressed in U937 cells. The effects of the expressed proteins on U937 cell adhesion mediated by PMA-in...

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Veröffentlicht in:Tsinghua science and technology 2005, Vol.10 (4), p.489-495
Hauptverfasser: Liu, Changzhen, Sui, Senfang
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description The effect of TACO 1-299, the N-terminal truncation of TACO, on phorbol 12-myristate 13-acetate (PMA)-induced U937 cell adhesion was investigated. Full-length TACO and several truncations were overexpressed in U937 cells. The effects of the expressed proteins on U937 cell adhesion mediated by PMA-induced differentiation were observed by fluorescence microscopy. The results show that the overexpression of TACO 1-299 inhibits cell adhesion while overexpressions of the other proteins do not have this effect. The actin-binding capability of TACO 1-299 was investigated and the results show that TACO 1-299 lacks the ability of TACO to bind F-actin. The inhibitive effect of TACO 1-299, the functional domain of TACO, suggests that TACO may play a role in cell differentiation mediating adhesion of monoblastic leukemia cells.
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Full-length TACO and several truncations were overexpressed in U937 cells. The effects of the expressed proteins on U937 cell adhesion mediated by PMA-induced differentiation were observed by fluorescence microscopy. The results show that the overexpression of TACO 1-299 inhibits cell adhesion while overexpressions of the other proteins do not have this effect. The actin-binding capability of TACO 1-299 was investigated and the results show that TACO 1-299 lacks the ability of TACO to bind F-actin. 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Full-length TACO and several truncations were overexpressed in U937 cells. The effects of the expressed proteins on U937 cell adhesion mediated by PMA-induced differentiation were observed by fluorescence microscopy. The results show that the overexpression of TACO 1-299 inhibits cell adhesion while overexpressions of the other proteins do not have this effect. The actin-binding capability of TACO 1-299 was investigated and the results show that TACO 1-299 lacks the ability of TACO to bind F-actin. The inhibitive effect of TACO 1-299, the functional domain of TACO, suggests that TACO may play a role in cell differentiation mediating adhesion of monoblastic leukemia cells.</abstract><pub>Elsevier Ltd</pub><doi>10.1016/S1007-0214(05)70105-X</doi><tpages>7</tpages></addata></record>
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subjects cell adhesion
differentiation
TACO
U937 cell
title N-Terminal Truncation of TACO Inhibits PMA-Induced U937 Cell Adhesion
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