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Antitumor effect of lso-mukaadial acetate on human cancer cells
Dissertation   Open access

Antitumor effect of lso-mukaadial acetate on human cancer cells

Portia Pheladi Raphela-Choma
Doctor of Philosophy (PHD), University of Johannesburg
2023
Handle:
https://hdl.handle.net/10210/513979

Abstract

Cancer-Treatment-Research Cell proliferation-Regulation Antineoplastic Agents Apoptosis
Introduction: Cancer is an uncontrollable proliferation of cells and poses a major public health problem worldwide with the number of cases increasing each year. It results from alterations in genetic and epigenetic factors that allow changes in cell proliferation, resistant to undergo apoptosis, cell invasion and metastasis. The purpose of this study was to investigate the effect of lso-mukaadial acetate (I MA) on human cancer in cell culture and animal model. The objective of this study was to determine the therapeutic effect of lso-mukaadial acetate in breast cancer xenografted mice model, pancreatic and colon cancer cell lines. Materials and Methodology: In the in vivo study, female athymic nude mice were used and inoculated with MCF-7 breast cancer cells subcutaneously. Group one served as a negative control group (no treatments) and group two positive control group (cisplatin) which was administered intravenously. IMA was administered orally to group three (100 mg/kg) and group four (300 mg/kg). Blood was collected (70 μL) from the tail vein on day zero, day one and day 3. Tumor regression and body mass were measured every second day. Estimation of serum parameters for renal Indices was examined using a creatinine assay. Histopathological analysis was conducted to evaluate morphological changes of liver, kidney, spleen tissues and tumors before and after compound administration under a light microscope. Apoptotic analysis using TUNEL system was conducted on liver, kidney and spleen tissues. In the in vitro study, MIA-PACA2 pancreatic cancer cells and HT29 colon cancer cells were cultured and treated with IMA. Alamar blue reagent was used to conduct cell viability endpoint assay for 24 hours and xCELLigence system was used to conduct real time cell viability for 60 hours after treatment with lso-mukaadial acetate. After obtaining ICsos, a cellular Adenosine Triphosphate (ATP) assay was conducted after treatment with IMA using CellTiter-Glo ® 2.0 Reagent. Caspase Glo®-3/7 reagent was used to measure caspase 3/7 activity after treatment with IMA. Mitochondrial dysfunction was tested using the Mitochondrial ToxGlo ™ reagent and morphological changes were assessed by a light microscope after treatment with IMA. Upregulation, and downregulation of selected genes in cancer cells were examined using RealTime Polymerase Chain reaction (SYBR Green). Results and Discussion: According to the in vivo findings, tumor shrinkage and reduction in body mass were observed after treatment with IMA. Serum creatinine was slightly elevated after
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