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Porcupine bezoar exhibit cell cycle arrest through inhibiting cyclin /CDK1 complex and apoptosis mitochondria mediated dependent pathway in A549 cells

Firus Khan, Al'aina Yuhainis and Abdullah Asuhaimi, Faizah and Abdull Rasad, Mohammad Syaiful Bahari and Mohamad, Mardhiah and Hashim, Ridzwan and Mamat, Suhana and Johan, Muhammad Farid and Abdul Wahab, Ridhwan (2016) Porcupine bezoar exhibit cell cycle arrest through inhibiting cyclin /CDK1 complex and apoptosis mitochondria mediated dependent pathway in A549 cells. In: 3rd Pan-Asian Biomedical Science Conference 2016 (3rd PABSC), 7th–8th December 2016, Shah Alam, Selangor. (Unpublished)

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Abstract

Porcupine bezoar (PB) previously reported to possess various medical properties, however there is no information on its potential anticancer effect on human cancer cells. In this study we investigate potential apoptotic effects induced by PB extracts in A549 cells and elucidate the underlying mechanism. Our study revealed that PB reduced the viability of A549 cells in dose dependent manner. PB treatment shown induction morphological changes of apoptosis feature in our phase contrast, hoechst 33342 and rhodamine phalloidin counter staining analysis. Flow cytometric analysis revealed that PB led to cell cycle arrest at G0/G1 through promoting p21 and inhibiting cyclin D/CDK1 complex gene expressions. Apoptotic gene expressions results indicated that PB mediated apoptosis of A549 cells by mitochondria pathway through receptor. Evidenced up-regulation of caspase 8 and BCL-2 interacting domain (BID) supported which resulted in Cytochrome C released. Additionally, upregulation of Bax result in down regulation of Bcl-2. The activities of caspase-8 and caspase-9 were enhanced by PB promoting caspase-3 activation, leading to DNA fragmentation. In conclusion, PB induced apoptosis occurs via mitochondria dependent pathway through receptor.

Item Type: Conference or Workshop Item (Speech/Talk)
Additional Information: 4701/60467
Uncontrolled Keywords: Porcupine bezoar, A549, apoptosis, cell cycle arrest, intrinsic pathway
Subjects: R Medicine > RM Therapeutics. Pharmacology
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Allied Health Sciences > Department of Biomedical Science (Effective:1st July 2011)
Depositing User: Dr Ridhwan Abdul Wahab
Date Deposited: 22 Jan 2018 14:40
Last Modified: 22 Jan 2018 15:12
URI: http://irep.iium.edu.my/id/eprint/60467

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