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Anti-proliferative effect of leaf phytochemicals of soursop (Annona muricata L.) against human osteosarcoma in vitro

Haripriya Shanmugam, R. Narmadha, Caroline Ravikumar, Kiruthika Ariyaperumal, R. Selvakumar, and Jayakanthan Mannu

Centre for Agricultural Nanotechnology, Tamil Nadu Agricultural University, Coimbatore, India

 

E-mail: haripriya.s@tnau.ac.in

Received: 18 May 2023  Accepted: 27 January 2024

Abstract:

Leaves of soursop (Annona muricata) is a potential anti-cancer agent. However, there is no report on the effect of soursop leaf phytochemicals against osteosarcoma, a musculoskeletal cancer commonly affecting children and adults. The current study identified 28 metabolites from ethyl acetate leaf (EAL) extract through GC–MS chemoprofiling and subjected to in silico analysis against the potential protein target, platelet-derived growth factor receptor α (PDGFRA) of osteosarcoma, including absorption, distribution, metabolism, and excretion and toxicity (ADMET) analysis to identify the possible hit compounds. This resulted in three hit leaf bioactives, namely 2’-hydroxy-5’-methyl chalcone, linoleic acid and annonacin showing good binding affinity with a docking score of − 7.4, − 7.0 and − 6.9 kcal/mol, respectively. With ADMET analysis, 2’-hydroxy-5’-methyl chalcone and linoleic acid obeyed Lipinski’s rule of five, whereas annonacin showed a slight violation. Among the three docked complexes, annonacin shows good stability during molecular dynamic simulation performed with PDGFRA. The concentration of the key marker compound, annonacin in EAL concentrate is found to be 5.032 ± 0.13 mg/g of leaf sample and is used for cytotoxicity assessment. Further, EAL concentrate exhibits cytotoxicity (IC50 value) on MG-63 osteosarcoma cells in vitro for concentrations ranging from 10 to 25 µg/mL. Nuclear imaging of osteoblast cells treated with EAL concentrate at 25 µg/mL concentration shows typical symptoms of apoptosis. In vitro cytotoxicity along with nuclear imaging confirmed EAL concentrate from soursop to be a potential drug candidate in developing new anti-cancer agent against osteosarcoma.

Keywords: Soursop leaves; Annona muricata; GC–MS chemoprofiling; Annonacin; Osteosarcoma; PDGFRA; Molecular docking; ADMET analysis; MG-63 cell lines; Nuclear imaging

Full paper is available at www.springerlink.com.

DOI: 10.1007/s11696-024-03349-x

 

Chemical Papers 78 (6) 3787–3797 (2024)

Monday, June 17, 2024

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