Inhibitory effect of temozolomide on apoptosis induction of cinnamaldehyde in human glioblastoma multiforme T98G cell line

Glioblastoma is the most common primary malignant brain tumor in adults. Temozolomide (TMZ) is an FDA-approved drug used to treat this type of cancer. Cinnamaldehyde (CIN) is a derivative of cinnamon extract and makes up 99% of it. The aim of this study was to investigate the in vitro combined effect of CIN and TMZ on human glioblastoma multiforme T98G cell line viability. In this study, we used 3-(4,5 dimethylthiazol-2-yl)-2,5-diphenyl-tertazolium bromide (MTT) method to evaluate the extent of IC50, acridine orange, Giemsa and Hoechst staining to evaluate the manner of apoptosis and the Western blotting method to examine the expression change of apoptotic proteins. Our results show that TMZ has an inhibitory effect on CIN when both used in combination at concentrations of 300 and 100 μM (P<0.05) and has a cytotoxic effect when used alone at the same concentrations (P<0.05). The western blotting result showed that TMZ at concentrations of 2,000 and 1,000 μM significantly increased Bax expression and decreased Bcl2 expression (P<0.05), indicating that TMZ induced apoptosis through the mitochondrial pathway. However, CIN had no effect on Bax and Bcl2 expressions, thus causing apoptosis from another pathway. Also, the Bax:Bcl2 expression ratio at concentrations combined was lower than that for TMZ 1,000 μM and higher than that for CIN 150 and 100 μM (P<0.05), which confirms the inhibitory effect of TMZ on CIN. From the present study, we conclude that TMZ in combination with CIN has an inhibitory effect on increasing the cytotoxicity rate.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:57

Enthalten in:

Anatomy & cell biology - 57(2024), 1 vom: 31. März, Seite 85-96

Sprache:

Englisch

Beteiligte Personen:

Abband, Hedieh [VerfasserIn]
Dabirian, Sara [VerfasserIn]
Jafari, Adele [VerfasserIn]
Nasiri, Mehran [VerfasserIn]
Nasiri, Ebrahim [VerfasserIn]

Links:

Volltext

Themen:

Apoptosis
Cinnamaldehyde
Glioblastoma
Journal Article
T98G cell line
Temozolomide

Anmerkungen:

Date Revised 29.03.2024

published: Print-Electronic

Citation Status PubMed-not-MEDLINE

doi:

10.5115/acb.23.159

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM364853042