The T. cruzi trans-sialidase induces PC12 cell differentiation via MAPK/ERK pathway.

Abstract:

:The trans-sialidase (TS) of Trypanosoma cruzi induces survival and differentiation of neuronal and glial cells. This mechanism underlying survival is via phosphatidylinositol 3-kinase (PI3K) but how TS promotes neuronal differentiation remained to be determined. Here we show that TS-induced neurite outgrowth in PC12 cells is through sustained activation of the mitogen-activated protein kinase or ERK cascade and, therefore, by a signaling mechanism distinct from the one it uses to induce cell survival. Such differential activation of signal pathways in neuronal cells to effectuate diverse biological activities is analogous to the action of authentic neurotrophins and other growth factors, thereby reinforcing the novel concept of T. cruzi mimicry of host neurotrophic factor(s).

journal_name

Neuroreport

journal_title

Neuroreport

authors

Chuenkova MV,Pereira MA

doi

10.1097/00001756-200112040-00022

subject

Has Abstract

pub_date

2001-12-04 00:00:00

pages

3715-8

issue

17

eissn

0959-4965

issn

1473-558X

journal_volume

12

pub_type

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