Human neuroblastoma cell differentiation requires protein kinase C-theta.

Abstract:

:Neuroblastoma LAN-5 cells exposed to retinoic acid cease to multiply and extend neurite outgrowths acquiring a neuronal phenotype. We now report that protein kinase C-theta; (PKC-theta;) isozyme is involved in this differentiation process due to the following findings: (i) PKC-theta; is expressed by LAN-5 cells as a nuclear and perinuclear protein; (ii) cell stimulation with retinoic acid promotes in a large increase in the expression level of the kinase and its intracellular redistribution; and (iii) a PKC-theta; antisense oligonucleotide reduces at the same time the expression level of the kinase and the cell response to retinoic acid. Altogether these data are consistent with a specific role played by PKC-theta; in the differentiation program of neuronal cells.

authors

Sparatore B,Patrone M,Passalacqua M,Pedrazzi M,Pontremoli S,Melloni E

doi

10.1006/bbrc.2000.3950

subject

Has Abstract

pub_date

2000-12-20 00:00:00

pages

589-94

issue

2

eissn

0006-291X

issn

1090-2104

pii

S0006-291X(00)93950-0

journal_volume

279

pub_type

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