Background & Aim: In traditional medicine, Zizyphus jujuba (jujube) has been used due to its medicinal properties and various physiological functions such as antioxidant, anticancer and anti-inflammatory properties. This study was conducted to study anti-cancer and apoptotic effects of essential oil from Zizyphus jujuba seeds and to evaluate the effect of essential oils on p53, APC and KRAS genes expression in HT-29 colorectal cell line.Experimental: In this study, the essential oil of jujube seeds collected from orchards in Isfahan was prepared by Clevenger apparatus and then analyzed by GC-MS. The effects of toxicity and cell viability were determined using Trypan Blue, MTT and clonogenic methods. DNA fragmentation and apoptosis techniques were used to evaluate the mechanism of the effects of essential oil on cell death by flow cytometry. Finally, Real-time PCR was used to evaluate the expression of p53, APC and KRAS genes and their role in induction of apoptosis.Results: Essential oil of Zizyphus jujuba seeds reduced the viability of cells by concentration and time-dependent manner as compared to the control group. The essential oil also induced apoptosis by increasing gene expression p53 and suppressing gene expression KRAS.Recommended applications/industries: The present results indicated that essential oil of Zizyphus jujuba seeds induces apoptosis by targeting genes involved in colon carcinogenesis. However, further investigations on signaling pathways are needed to fully confirm the results of this study. پرونده مقاله

Background & Aim: Colorectal canceris a clinically heterogeneous disease resulting from metabolome pattern alterations of many metabolites and their genetic factor interactions in man. Chemotherapy in colorectal cancer is generally followed by multiple side effects, including drug resistance; It is well established that herbal medicines are gaining worldwide interest in treating many cancers. Vitexin is an apigenin flavone glycoside present in hawthorn has exhibited therapeutic properties. This study was performed to assess the antitumor properties of Vitexin on the expression of p53, KRAS, and APC genes and the metabolome profile alterations associated with these genetic modifications.Experimental: Cells were treated with different concentrations of Vitexin, and toxicity and cell growth inhibition were ascertained in vitro using the MTT assay method. Cells were treated with Vitexin, and gene expression was determined. Following metabolome 1HNMR spectroscopy with 1D NOESY protocol and the resulting spectra scrutinized to classify differentiated metabolites and their biochemical pathways. Integrative systems biology analysis software examined the metabolites and the genes, and the main pathways modulated by gene expression were identified.Results: Our finding revealed that a 50% inhibitory concentration for Vitexin was 16.32 μM, while the relative expression of tumor suppressor genes APC and p53 in treated cells enhanced and the expression of the KRAS oncogene gene decreased significantly compared to the control group. The crucial changes in convergent metabolic phenotype with genes were identified in this investigation.Recommended applications/industries: Our findings revealed that Vitexin exhibits antitumor properties by targeting a specific biochemical pathway in the cell's metabolome profile due to changes in genes involved in colon cancer. پرونده مقاله

نوشیدنی تخمیری که به طور سنتی حاصل تخمیر چای شیرین توسط قارچ کامبوچا است، دارای اثرات سودمندی در درمان بسیاری از بیماری ها به ویژه سرطان است. هدف از مطالعه ی حاضر بررسی اثرات فرکشن های مختلف چای بر میزان تکثیر و آپوپیتوز بر سلول های سرطان کلون، HT-29 است. در مطالعه تجربی حاضر، میزان بقاء و تکثیر سلولی فرکشن های حلال چای کامبوچا شامل فرکشن های کلروفرم، اتیل استات، بوتانول، هگزان و فاز آبی نهایی در غلظت های ( 0-900 میکروگرم بر میلی لیتر) بوسیله روش MTT و تست کلوژنیک مورد بررسی قرار گرفت. میزان آلقاء آپوپتوز توسط تست قطعه قطعه شدن DNA و روش فلوسایتومتری بررسی گردید. فرکشن های آبی و بوتانولی فاقد اثرات سمیت سلولی بودند. IC50 تعیین شده برای فرکشن های اتیل استات، کلروفرم و هگزان بعد از 24 ساعت به ترتیب 63/49 ± 1/213، 11/70 ± 2/296 و 29/83 ± 2/563 میکروگرم بر میلی لیتر تعیین شد. نتایج نشان داد که مهار رشد سلولی وابسته به دوز است. غلظت IC50 از این فرکشن ها سبب قطعه قطعه شدن DNA شد. با بررسی آپوپتوز به روش فلوسیتومتری با این غلظت ها نشان داد که جزء اتیل استات باعث بروز آپوپتوز سلولی شد، در حالی که مرگی که غلظت های IC50 از فرکشن های کلروفرم و هگزان ایجاد کرده بودند بیشتر از نوع نکروز بود. فرکشن اتیل استات چای کامبوچا به صورت وابسته به دوز باعث القاء مرگ سلولی از طریق مسیر آپوپتوز شد و ممکن است مسئول خاصیت ضد آپوپتوز و ضدتکثیر مشاهده شده باشند و به نظر می رسد می تواند کاندیدای مناسبی برای جلوگیری از تکثیر سلول های سرطانی کلورکتال باشد. پرونده مقاله