Ectopic nerve growth factor prevents proliferation in glioma cells by senescence induction

Daniela Meco*, Angela Maria Di Francesco, Linda Melotti, Antonio Ruggiero, Riccardo Riccardi

*Autore corrispondente per questo lavoro

Risultato della ricerca: Contributo in rivistaArticolopeer review

2 Citazioni (Scopus)

Abstract

OBJECTIVE:\r\nThe neurotrophin nerve growth factor (NGF) affects survival, regulation and differentiation of both central and peripheral nervous system neurons. NGF exerts its effects primarily through tropomyosin receptor kinase A (TrkA), inducing a cascade of tyrosine kinase-initiated responses. In spite of its importance, the general behavior of NGF looks contradictory: its effects can be both stimulatory and inhibitory. The present study aims to explore the molecular mechanisms induced by NGF in glioma cancer cells.\r\n\r\nMETHODS:\r\nThe effects of NGF were investigated in high grade glioma and low grade pediatric glioma (PLGG) cell lines through comparative studies. In particular, we investigated TrkA-mediated cellular pathways, molecular signaling, proliferation, cell cycle and cellular senescence.\r\n\r\nRESULTS:\r\nWe found that exposure of PLGG cells to NGF produced stable growth arrest with the features of a senescence phenotype but without the expression of anti-poly(ADP-ribose) polymerase cleavage, a marker of apoptosis. Moreover, NGF treatment promoted the phosphorylation of extracellular signal-regulated kinase1/2 (ERK1/2), signal transducer and activator of transcription 3 (STAT3), and phosphatidylinositol-3-kinase (PI3K)/protein kinase B (AKT) signaling. In addition, K252a, a TrkA inhibitor, significantly reduced the phosphorylation of the aforementioned signaling pathways, suggesting that NGF-activated ERK1/2 and AKT signaling take place downstream of TrkA-neurotrophin interaction.\r\n\r\nCONCLUSIONS:\r\nThese findings provide the first evidence that NGF can induce senescence of PLGG cells in a receptor-mediated fashion, thus supporting the hypothesis that in the clinical setting NGF might be beneficial to pediatric glioma patients.
Lingua originaleInglese
pagine (da-a)6820-6830
Numero di pagine11
RivistaJournal of Cellular Physiology
Volume234
Numero di pubblicazione5
DOI
Stato di pubblicazionePubblicato - 2019

All Science Journal Classification (ASJC) codes

  • Fisiologia
  • Biochimica Clinica
  • Biologia Cellulare

Keywords

  • cellular senescence
  • glioma cell lines
  • nerve growth factor (NGF)
  • neurotrophin

Fingerprint

Entra nei temi di ricerca di 'Ectopic nerve growth factor prevents proliferation in glioma cells by senescence induction'. Insieme formano una fingerprint unica.

Cita questo