Modulation of Apoptotic and Akt/PI3K/mTOR pathways to target Glioblastoma Cells using synthetic compound PGEA-AN

Objective: To investigate the anticancer potential of a novel synthetic derivative of a naturally occurring diterpenoid against glioblastoma. Method: The in vitro study was conducted at the Ojha Campus of Dow University of Health Sciences, Karachi, from February to December 2021, and comprised U87...

Full description

Bibliographic Details
Main Authors: Shafea Saad, Farina Hanif, Shabana Usman Simjee, Shaheen Faizi, Lubna Khan, Ambreen Ashfaque
Format: Article
Language:English
Published: Pakistan Medical Association 2024-02-01
Series:Journal of the Pakistan Medical Association
Online Access:http://ojs.jpma.org.pk/index.php/public_html/article/view/1163
_version_ 1797219497694724096
author Shafea Saad
Farina Hanif
Shabana Usman Simjee
Shaheen Faizi
Lubna Khan
Ambreen Ashfaque
author_facet Shafea Saad
Farina Hanif
Shabana Usman Simjee
Shaheen Faizi
Lubna Khan
Ambreen Ashfaque
author_sort Shafea Saad
collection DOAJ
description Objective: To investigate the anticancer potential of a novel synthetic derivative of a naturally occurring diterpenoid against glioblastoma. Method: The in vitro study was conducted at the Ojha Campus of Dow University of Health Sciences, Karachi, from February to December 2021, and comprised U87 cells. The 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay was used to determine the growth inhibitory effect of 16(R and S) – phenylamino-cleroda3, 13(14) Zdiene- 15, 16 olide and standard drug temozolomide against glioblastoma cells, and half-maximal inhibitory concentration was calculated. Microscopy and immunocytochemistry were used to investigate apoptotic morphology and active caspase-3 and B-cell lymphoma 2 (Bcl-2) expression. Quantitative real time polymerase chain reaction was used to investigate the expression of proliferation markers. Data was analysed using SPSS 21. Results: Both the synthetic derivative and the standard drug significantly inhibited growth of U87 cells (p<0.001) with half-maximal inhibitory concentration of 19uM and 185uM, respectively. Apoptotic morphology and upregulation of active caspase-3 protein expression was observed in cells treated with half-maximal inhibitory concentration doses of both the synthetic derivative (p<0.05) and the standard drug (p<0.001), and Bcl-2 was downregulated in both the synthetic derivative (p<0.01) and the standard drug (p=0.05). However, no significant difference was observed in the expression of proliferation markers (p>0.05). Conclusion: The synthetic diterpene derivative PGEA-AN showed growth inhibitory actiity against glioblastoma. Key Words: Temozolomide, Caspase, Glioblastoma, Diterpenes.
first_indexed 2024-04-24T12:34:35Z
format Article
id doaj.art-f6ca8ef75c7f4023a75457bb3ca18837
institution Directory Open Access Journal
issn 0030-9982
language English
last_indexed 2024-04-24T12:34:35Z
publishDate 2024-02-01
publisher Pakistan Medical Association
record_format Article
series Journal of the Pakistan Medical Association
spelling doaj.art-f6ca8ef75c7f4023a75457bb3ca188372024-04-07T16:28:14ZengPakistan Medical AssociationJournal of the Pakistan Medical Association0030-99822024-02-01742Modulation of Apoptotic and Akt/PI3K/mTOR pathways to target Glioblastoma Cells using synthetic compound PGEA-ANShafea Saad0Farina Hanif1Shabana Usman Simjee2Shaheen Faizi3Lubna Khan4Ambreen Ashfaque5Department of Physiology, Dow International Medical College, Dow University of Health SciencesDepartment of Biochemistry, Dow International Medical College, Dow University of Health Sciences,H.E.J. Research Institute of Chemistry, International Centre for Chemical and Biological Sciences, University of Karachi,H.E.J. Research Institute of Chemistry, International Centre for Chemical and Biological Sciences, University of Karachi, PakistanDepartment of Biotechnology, University of Karachi, Karachi, PakistanDepartment of Physiology, Dow International Medical College, Dow University of Health Sciences, Karachi, Pakistan Objective: To investigate the anticancer potential of a novel synthetic derivative of a naturally occurring diterpenoid against glioblastoma. Method: The in vitro study was conducted at the Ojha Campus of Dow University of Health Sciences, Karachi, from February to December 2021, and comprised U87 cells. The 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay was used to determine the growth inhibitory effect of 16(R and S) – phenylamino-cleroda3, 13(14) Zdiene- 15, 16 olide and standard drug temozolomide against glioblastoma cells, and half-maximal inhibitory concentration was calculated. Microscopy and immunocytochemistry were used to investigate apoptotic morphology and active caspase-3 and B-cell lymphoma 2 (Bcl-2) expression. Quantitative real time polymerase chain reaction was used to investigate the expression of proliferation markers. Data was analysed using SPSS 21. Results: Both the synthetic derivative and the standard drug significantly inhibited growth of U87 cells (p<0.001) with half-maximal inhibitory concentration of 19uM and 185uM, respectively. Apoptotic morphology and upregulation of active caspase-3 protein expression was observed in cells treated with half-maximal inhibitory concentration doses of both the synthetic derivative (p<0.05) and the standard drug (p<0.001), and Bcl-2 was downregulated in both the synthetic derivative (p<0.01) and the standard drug (p=0.05). However, no significant difference was observed in the expression of proliferation markers (p>0.05). Conclusion: The synthetic diterpene derivative PGEA-AN showed growth inhibitory actiity against glioblastoma. Key Words: Temozolomide, Caspase, Glioblastoma, Diterpenes. http://ojs.jpma.org.pk/index.php/public_html/article/view/1163
spellingShingle Shafea Saad
Farina Hanif
Shabana Usman Simjee
Shaheen Faizi
Lubna Khan
Ambreen Ashfaque
Modulation of Apoptotic and Akt/PI3K/mTOR pathways to target Glioblastoma Cells using synthetic compound PGEA-AN
Journal of the Pakistan Medical Association
title Modulation of Apoptotic and Akt/PI3K/mTOR pathways to target Glioblastoma Cells using synthetic compound PGEA-AN
title_full Modulation of Apoptotic and Akt/PI3K/mTOR pathways to target Glioblastoma Cells using synthetic compound PGEA-AN
title_fullStr Modulation of Apoptotic and Akt/PI3K/mTOR pathways to target Glioblastoma Cells using synthetic compound PGEA-AN
title_full_unstemmed Modulation of Apoptotic and Akt/PI3K/mTOR pathways to target Glioblastoma Cells using synthetic compound PGEA-AN
title_short Modulation of Apoptotic and Akt/PI3K/mTOR pathways to target Glioblastoma Cells using synthetic compound PGEA-AN
title_sort modulation of apoptotic and akt pi3k mtor pathways to target glioblastoma cells using synthetic compound pgea an
url http://ojs.jpma.org.pk/index.php/public_html/article/view/1163
work_keys_str_mv AT shafeasaad modulationofapoptoticandaktpi3kmtorpathwaystotargetglioblastomacellsusingsyntheticcompoundpgeaan
AT farinahanif modulationofapoptoticandaktpi3kmtorpathwaystotargetglioblastomacellsusingsyntheticcompoundpgeaan
AT shabanausmansimjee modulationofapoptoticandaktpi3kmtorpathwaystotargetglioblastomacellsusingsyntheticcompoundpgeaan
AT shaheenfaizi modulationofapoptoticandaktpi3kmtorpathwaystotargetglioblastomacellsusingsyntheticcompoundpgeaan
AT lubnakhan modulationofapoptoticandaktpi3kmtorpathwaystotargetglioblastomacellsusingsyntheticcompoundpgeaan
AT ambreenashfaque modulationofapoptoticandaktpi3kmtorpathwaystotargetglioblastomacellsusingsyntheticcompoundpgeaan