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Amini-Farsani Z, Hashemi Sheikhshabani S, Shaygan N, Asgharzade S. The impact of oleuropein on miRNAs regulating cell death signaling pathway in human cervical cancer cells. Biotechnol Appl Biochem 2024; 71:61-71. [PMID: 37849224 DOI: 10.1002/bab.2521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 10/01/2023] [Indexed: 10/19/2023]
Abstract
Cervical cancer is known as the second most pervasive malignancy in women across the globe. The role played by microRNAs (miRNAs) in the initiation, progression, and metastasis of this cancer has received specific attention. The use of natural compounds leading cancer cells toward apoptosis is a feasible strategy for cancer therapy. Oleuropein, an olive-extracted phenolic substance, displays anticancer properties. Here, it was attempted to assess the role played by oleuropein in cell viability in cervical cancer and changes in the expression of some miRNAs associated with cervical cancer as well as some of their possible target genes selected using bioinformatics analysis. For this purpose, HeLa cell line was exposed to several oleuropein concentrations for 48 and 72 h. After that, 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2H-tetrazolium bromide assay and flow cytometry were employed to assess cell viability and apoptosis, respectively. In addition, to conduct bioinformatics analysis, Cytoscape computer program was used based on STRING database. Furthermore, to examine the role played by oleuropein in the expression of miRNAs of interest as well as their potential target genes, real-time PCR was employed. The findings indicated that oleuropein reduced cell viability through inducing apoptosis. As a result of treatment with oleuropein, miR-34a, miR-125b, and miR-29a showed increased expression levels, whereas miR-181b, miR-221, and miR-16 showed decreased expression levels. Furthermore, oleuropein reduced the expression of the anti-apoptotic genes Bcl-2 and Mcl1, whereas it elevated the expression of the pro-apoptotic Bid, Fas, and TNFRSF10B genes and the p53 tumor suppressor. Our results indicate that the apoptosis induction is a mechanism of action of oleuropein in HeLa cells. Because of its effect on the reflation of the expression of genes and miRNAs effective in the pathogenesis of cervical cancer, oleuropein shows potential as an effective research tool for developing new natural drugs for treating cervical cancer.
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Affiliation(s)
- Zeinab Amini-Farsani
- Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | | | - Nasibeh Shaygan
- Department of Plant Breeding and Biotechnology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Samira Asgharzade
- Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
- Department of Molecular, Medicine, School of Advanced Technologies, Shahrekord University of Medical Sciences, Shahrekord, Iran
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Benčić Đ, Barbarić M, Mornar A, Klarić DA, Brozovic A, Dabelić S, Fadljević M, Marković AK. Oleuropein in olive leaf, branch, and stem extracts: stability and biological activity in human cervical carcinoma and melanoma cells. ACTA PHARMACEUTICA (ZAGREB, CROATIA) 2023; 73:601-616. [PMID: 38147483 DOI: 10.2478/acph-2023-0046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 12/06/2023] [Indexed: 12/28/2023]
Abstract
Olive leaves as a main byproduct of olive oil and fruit industry are a valuable source of phytochemicals such as polyphenols, with multiple biomedical effects. Apart from leaves, olive branches and stems make up a significant amount of olive waste. It is well known that the drying process and long-term storage affect the stability and concentration of polyphenols present in raw materials. For that matter, two different means of storing olive waste, at room temperature and +4 °C, were compared by determining the content of the polyphenol oleuropein (OLE) in olive leaf, branch, and stem extracts (LE, BE, and SE) by HPLC-DAD method. Total phenols (TPC), o-diphenols (o-DPC), and total flavonoids (TFC) content in extracts were assessed by UV-Vis measurements. LE prepared from leaves stored at +4 °C had the highest OLE content, 30.7 mg g-1 of dry extract (DE). SE from stems stored at +4 °C was the richest in TPC and TFC (193 mg GAE/g DE and 82.9 mg CE/g DE, respectively), due to the higher purity of the extract. The biological activity of extracts was determined on cervical cancer (HeLa), melanoma (A375), metastatic melanoma (A375M) tumor cell lines, and on spontaneously immortalized cell line of keratinocytes (HaCaT), using the MTT assay. The data show that all extracts had a similar dose-dependent effect on cell viability in HeLa cells, while the effect of LE on melanoma A375 and A375M, and HaCaT cells was cell-line dependent.
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Affiliation(s)
- Đani Benčić
- 1University of Zagreb Faculty of Agriculture, 10000 Zagreb, Croatia
| | - Monika Barbarić
- 2University of Zagreb, Faculty of Pharmacy and Biochemistry, 10000 Zagreb, Croatia
| | - Ana Mornar
- 2University of Zagreb, Faculty of Pharmacy and Biochemistry, 10000 Zagreb, Croatia
| | | | | | - Sanja Dabelić
- 2University of Zagreb, Faculty of Pharmacy and Biochemistry, 10000 Zagreb, Croatia
| | - Mihaela Fadljević
- 2University of Zagreb, Faculty of Pharmacy and Biochemistry, 10000 Zagreb, Croatia
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Letafati A, Sakhavarz T, Khosravinia MM, Ardekani OS, Sadeghifar S, Norouzi M, Naseri M, Ghaziasadi A, Jazayeri SM. Exploring the correlation between progression of human papillomavirus infection towards carcinogenesis and nutrition. Microb Pathog 2023; 183:106302. [PMID: 37567326 DOI: 10.1016/j.micpath.2023.106302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 08/07/2023] [Accepted: 08/09/2023] [Indexed: 08/13/2023]
Abstract
Human papillomavirus (HPV) is a common sexually transmitted virus that can lead to the development of various types of cancer. While there are vaccines available to prevent HPV infection, there is also growing interest in the role of nutrition in reducing the risk of HPV-related cancers in HPV positive patients. Diet and nutrition play a critical role in maintaining overall health and preventing various diseases. A healthy diet can strengthen the immune system, which is essential for fighting off infections, including HPV infections, and preventing the growth and spread of cancer cells. Therefore, following a healthy diet and maintaining a healthy weight are important components of HPV and cancer prevention. This article explores the current scientific evidence on the relationship between nutrition and HPV, including the impact of specific nutrients, dietary patterns, and supplements on HPV infection toward cancer progression.
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Affiliation(s)
- Arash Letafati
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
| | - Tannaz Sakhavarz
- Research Center for Clinical Virology, Tehran University of Medical Science, Tehran, Iran.
| | - Mohammad Mahdi Khosravinia
- Personalized Medicine Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.
| | - Omid Salahi Ardekani
- Research Center for Clinical Virology, Tehran University of Medical Science, Tehran, Iran.
| | - Samira Sadeghifar
- Research Center for Clinical Virology, Tehran University of Medical Science, Tehran, Iran.
| | - Mehdi Norouzi
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran; Research Center for Clinical Virology, Tehran University of Medical Science, Tehran, Iran.
| | - Mona Naseri
- Research Center for Clinical Virology, Tehran University of Medical Science, Tehran, Iran.
| | - Azam Ghaziasadi
- Research Center for Clinical Virology, Tehran University of Medical Science, Tehran, Iran.
| | - Seyed Mohammad Jazayeri
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran; Research Center for Clinical Virology, Tehran University of Medical Science, Tehran, Iran.
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Patel L, Deng Z, Zhu Z, Lequio M, Hough J, Xiao H, Bai Q, Wakefiel MR, Fang Y. Olive: A Potential Suppressor for Cervical Cancer by Upregulation of P21. Cureus 2023; 15:e38719. [PMID: 37292535 PMCID: PMC10246731 DOI: 10.7759/cureus.38719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/08/2023] [Indexed: 06/10/2023] Open
Abstract
Background Cervical cancer is the second deadliest for women between the ages of 20 and 39 years. Even with prevention tactics for screening, incident rates and mortality of cervical cancer remain high. Olive has been shown to have many beneficial effects in humans concerning cardiovascular disease and inflammation. Despite these promising benefits, little is known about its effect on cervical cancer. This study examined the effects and mechanism of effects of olive extract (OE) on the HeLa cervical cancer cell line. Methodology We utilized clonogenic survival assay, quick cell proliferation assay, and caspase-3 activity to investigate the effect of OE on the proliferation and apoptosis of the cervical cancer cell line HeLa. To investigate the mechanisms behind these findings, Reverse transcription polymerase chain reaction and immunohistochemistry were performed. Results OE inhibited the growth and proliferation of HeLa cells. In comparison to the control, the percentage of colonies, as well as the optical density of the cervical cancer cells, was found to be decreased. In addition, the relative activity of caspase-3, a marker for apoptosis, was increased after treatment with OE. The anti-proliferative effect of OE on HeLa cells correlated with the increase of an anti-proliferative molecule p21. However, the pro-apoptotic effect of OE was not correlated with the change in major pro-apoptotic or anti-apoptotic molecules examined in this study. Conclusions Our study suggests that OE inhibits the growth of HeLa cervical cancer cells by upregulation of p21. Further investigation of the effects of OE on cervical cancer and other cancers is warranted by these results.
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Affiliation(s)
- Love Patel
- Department of Immunology, Pathology, and Microbiology, Des Moines University, Des Moines, USA
| | - Zuliang Deng
- Pathology, University of Missouri, Columbia, USA
| | - Ziwen Zhu
- School of Medicine, University of Missouri School of Medicine, Columbia, USA
| | - Marco Lequio
- Biological Sciences, University of Missouri, Columbia, USA
| | - Jacob Hough
- School of Medicine, University of Missouri School of Medicine, Columbia, USA
| | - Huaping Xiao
- Pathology, University of Missouri, Columbia, USA
| | - Qian Bai
- Pathology, University of Missouri, Columbia, USA
| | | | - Yujiang Fang
- Department of Immunology, Pathology, and Microbiology, Des Moines University, Des Moines, USA
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Oleuropein Counteracts Both the Proliferation and Migration of Intra- and Extragonadal Seminoma Cells. Nutrients 2022; 14:nu14112323. [PMID: 35684123 PMCID: PMC9182631 DOI: 10.3390/nu14112323] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 05/21/2022] [Accepted: 05/28/2022] [Indexed: 01/07/2023] Open
Abstract
Recent and growing literature has reported that oleuropein (OLE), the main polyphenol in olive leaf extract, inhibits tumor cell proliferation and reduces the invasiveness properties of cancer cells; therefore, OLE may play a significant role in the development of new drugs for cancer treatment. These antineoplastic properties have been reported in many experimental cancer models, but the effect of OLE on seminoma cells is yet to be evaluated. In the present study, we demonstrate, for the first time, that OLE reduces cell viability in both intra- and extragonadal TCAM-2 and SEM-1 seminoma cells, respectively, in a dose-dependent manner. As shown by Western-blot analysis, OLE exposure reduced cyclin-D1 expression and upregulated p21Cip/WAF1, concomitantly affecting the upstream pathway of NF-κB, leading to the reduction of its nuclear content, thereby suggesting that OLE could modulate cell-cycle regulators by inhibiting NF-κB. Moreover, Annexin V staining revealed that OLE induced apoptosis in cancer cells and upregulated the pro-apoptotic factor BAX. Through wound-healing scratch and transmigration assays, we also demonstrated that OLE significantly reduced the migration and motility of TCAM-2 and SEM-1 cells, and downregulated the expression of TGFβ-1, which is known to be the main pro-fibrotic factor involved in the acquisition of the migratory and invasive properties of cancer cells. Collectively, our results indicate that OLE reduces seminoma cell proliferation, promotes apoptosis, and counteracts cell migration and motility. Further studies are needed to explore the molecular mechanisms underlying these observed effects.
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Frediani E, Scavone F, Laurenzana A, Chillà A, Tortora K, Cimmino I, Leri M, Bucciantini M, Mangoni M, Fibbi G, Del Rosso M, Mocali A, Giovannelli L, Margheri F. Olive phenols preserve lamin B1 expression reducing cGAS/STING/NFκB-mediated SASP in ionizing radiation-induced senescence. J Cell Mol Med 2022; 26:2337-2350. [PMID: 35278036 PMCID: PMC8995441 DOI: 10.1111/jcmm.17255] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 02/04/2022] [Accepted: 02/11/2022] [Indexed: 12/25/2022] Open
Abstract
Senescence occurs upon critical telomere shortening, or following DNA damage, oncogenic activation, hypoxia and oxidative stress, overall referred to stress-induced premature senescence (SIPS). In response to DNA damage, senescent cells release cytoplasmic chromatin fragments (CCFs), and express an altered secretome, the senescence-associated secretory phenotype (SASP), which contributes to generate a pro-inflammatory and pro-tumoral extracellular milieu. Polyphenols have gained significant attention owing to their anti-inflammatory and anti-tumour activities. Here, we studied the effect of oleuropein aglycone (OLE) and hydroxytyrosol (HT) on DNA damage, CCF appearance and SASP in a model of irradiation-induced senescence. Neonatal human dermal fibroblasts (NHDFs) were γ-irradiated and incubated with OLE, 5 µM and HT, 1 µM. Cell growth and senescence-associated (SA)-β-Gal-staining were used as senescence markers. DNA damage was evaluated by Comet assay, lamin B1 expression, release of CCFs, cyclic GMP-AMP Synthase (cGAS) activation. IL-6, IL-8, MCP-1 and RANTES were measured by ELISA assay. Our results showed that OLE and HT exerted a protective effect on 8 Gy irradiation-induced senescence, preserving lamin B1 expression and reducing cGAS/STING/NFκB-mediated SASP. The ability of OLE and HT to mitigate DNA damage, senescence status and the related SASP in normal cells can be exploited to improve the efficacy and safety of cancer radiotherapy.
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Affiliation(s)
- Elena Frediani
- Department of Experimental and Clinical Biomedical SciencesUniversity of FlorenceFlorenceItaly
| | - Francesca Scavone
- Department of Experimental and Clinical Biomedical SciencesUniversity of FlorenceFlorenceItaly
| | - Anna Laurenzana
- Department of Experimental and Clinical Biomedical SciencesUniversity of FlorenceFlorenceItaly
| | - Anastasia Chillà
- Department of Experimental and Clinical Biomedical SciencesUniversity of FlorenceFlorenceItaly
| | | | - Ilaria Cimmino
- Department of Translational MedicineResearch Unit (URT) Genomic of DiabetesInstitute of Experimental Endocrinology and OncologyNational Council of Research (CNR)University of Naples Federico IINaplesItaly
| | - Manuela Leri
- Department of Experimental and Clinical Biomedical SciencesUniversity of FlorenceFlorenceItaly
| | - Monica Bucciantini
- Department of Experimental and Clinical Biomedical SciencesUniversity of FlorenceFlorenceItaly
| | - Monica Mangoni
- Department of Experimental and Clinical Biomedical SciencesUniversity of FlorenceFlorenceItaly
- Radiation Oncology Unit ‐ Oncology DepartmentAzienda Ospedaliero Universitaria CareggiFlorenceItaly
| | - Gabriella Fibbi
- Department of Experimental and Clinical Biomedical SciencesUniversity of FlorenceFlorenceItaly
| | - Mario Del Rosso
- Department of Experimental and Clinical Biomedical SciencesUniversity of FlorenceFlorenceItaly
| | - Alessandra Mocali
- Department of Experimental and Clinical Biomedical SciencesUniversity of FlorenceFlorenceItaly
| | - Lisa Giovannelli
- Department of Neurofarba (Department of Neurosciences, Psychology, Drug Research and Child Health)University of FlorenceFlorenceItaly
| | - Francesca Margheri
- Department of Experimental and Clinical Biomedical SciencesUniversity of FlorenceFlorenceItaly
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Albogami S, Hassan AM. Assessment of the Efficacy of Olive Leaf ( Olea europaea L.) Extracts in the Treatment of Colorectal Cancer and Prostate Cancer Using In Vitro Cell Models. Molecules 2021; 26:4069. [PMID: 34279409 PMCID: PMC8272070 DOI: 10.3390/molecules26134069] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 06/30/2021] [Accepted: 07/01/2021] [Indexed: 01/18/2023] Open
Abstract
Cancer is one of the most serious public health issues worldwide, ranking second only to cardiovascular diseases as a cause of death. Numerous plant extracts have extraordinary health benefits and have been used for centuries to treat a variety of ailments with few side effects. Olive leaves have a long history of medicinal and therapeutic use. In this study, the anti-cancer properties of an olive leaf extract were investigated in vitro using colorectal and prostate cancer cell lines (HT29 and PC3, respectively). A high-performance liquid chromatography analysis showed that the olive leaf extract contained a high chlorogenic acid content. Accordingly, chlorogenic acid may be related to the observed effects of the aqueous extract on cancer cells, including increased inhibition of cancer cell growth, migration, DNA fragmentation, cell cycle arrest at the S phase, reactive oxygen species (ROS) production, and altered gene expression. The effects of the extracts were greater in HT29 than in PC3 cells. These results suggest that chlorogenic acid, the main constituent in the olive extract, is a promising new anti-cancer agent. Further analyses should focus on its in vivo effects on colorectal tumor models, both alone and in combination with established agents.
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Affiliation(s)
- Sarah Albogami
- Department of Biotechnology, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia;
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Yusuf IO, Chen HM, Cheng PH, Chang CY, Tsai SJ, Chuang JI, Wu CC, Huang BM, Sun HS, Chen CM, Yang SH. FGF9 induces neurite outgrowth upon ERK signaling in knock-in striatal Huntington's disease cells. Life Sci 2020; 267:118952. [PMID: 33383048 DOI: 10.1016/j.lfs.2020.118952] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 12/07/2020] [Accepted: 12/16/2020] [Indexed: 12/17/2022]
Abstract
AIMS Huntington's disease (HD) is a neurodegenerative disease that causes deficits in neurite outgrowth, which suggests that enhancement of neurite outgrowth is a potential direction by which to improve HD. Our previous publications showed that fibroblast growth factor 9 (FGF9) provides anti-apoptosis and anti-oxidative functions in striatal cell models of HD through the extracellular signal-regulated kinases (ERK) pathway, and FGF9 also stimulates cytoskeletons to enhance neurite outgrowth via nuclear factor kappa B (NF-kB) signaling. In this study, we further demonstrate the importance of the ERK pathway for the neurite outgrowth induced by FGF9 in HD striatal models. MATERIALS AND METHODS FGF9 was treated with ERK (U0126) or NF-kB (BAY11-7082) inhibitors in STHdhQ7/Q7 and STHdhQ111/Q111 striatal knock-in cell lines to examine neurite outgrowth, cytoskeletal markers, and synaptic proteins via immunofluorescence staining and Western blotting. NF-kB activity was analyzed by NF-kB promoter reporter assay. KEY FINDINGS Here, we show that suppression of ERK signaling significantly inhibits FGF9-induced neurite outgrowth, cytoskeletal markers, and synaptic proteins in HD striatal cells. In addition, we also show suppression of ERK signaling significantly decreases FGF9-induced NF-kB activation, whereas suppression of NF-kB does not decrease FGF9-induced ERK signaling. These results suggest that FGF9 activates ERK signaling first, stimulates NF-kB upregulation, and then enhances neurite outgrowth in HD striatal cells. SIGNIFICANCE We elucidate the more detailed mechanisms of neurite outgrowth enhanced by FGF9 in these HD striatal cells. This study may provide insights into targeting neurite outgrowth for HD therapy.
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Affiliation(s)
- Issa Olakunle Yusuf
- Taiwan International Graduate Program in Interdisciplinary Neuroscience, National Cheng Kung University and Academia Sinica, Taipei 11529, Taiwan; Institute of Clinical Medicine, College of Medicine, Taiwan; Department of Physiology, College of Medicine, Taiwan
| | - Hsiu-Mei Chen
- Department of Physiology, College of Medicine, Taiwan
| | | | - Chih-Yi Chang
- Department of Physiology, College of Medicine, Taiwan
| | - Shaw-Jenq Tsai
- Department of Physiology, College of Medicine, Taiwan; Institute of Basic Medical Sciences, Taiwan
| | - Jih-Ing Chuang
- Department of Physiology, College of Medicine, Taiwan; Institute of Basic Medical Sciences, Taiwan
| | - Chia-Ching Wu
- Institute of Basic Medical Sciences, Taiwan; Department of Cell Biology and Anatomy, Taiwan
| | - Bu-Miin Huang
- Institute of Basic Medical Sciences, Taiwan; Department of Cell Biology and Anatomy, Taiwan
| | - H Sunny Sun
- Institute of Basic Medical Sciences, Taiwan; Institute of Molecular Medicine, National Cheng Kung University, Tainan 70101, Taiwan
| | - Chuan-Mu Chen
- Department of Life Sciences, College of Life Sciences, National Chung Hsing University, Taichung 40227, Taiwan
| | - Shang-Hsun Yang
- Taiwan International Graduate Program in Interdisciplinary Neuroscience, National Cheng Kung University and Academia Sinica, Taipei 11529, Taiwan; Department of Physiology, College of Medicine, Taiwan; Institute of Basic Medical Sciences, Taiwan.
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Benot-Dominguez R, Tupone MG, Castelli V, d'Angelo M, Benedetti E, Quintiliani M, Cinque B, Forte IM, Cifone MG, Ippoliti R, Barboni B, Giordano A, Cimini A. Olive leaf extract impairs mitochondria by pro-oxidant activity in MDA-MB-231 and OVCAR-3 cancer cells. Biomed Pharmacother 2020; 134:111139. [PMID: 33360155 DOI: 10.1016/j.biopha.2020.111139] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 12/10/2020] [Accepted: 12/10/2020] [Indexed: 02/07/2023] Open
Abstract
Breast and ovarian cancers are the leading and fifth reason for tumor death among females, respectively. Recently, many studies demonstrated antiproliferative activities of natural aliments in cancer. In this study, we investigated the antitumor potential of Olive Leaf Extract (OLE) in triple-negative breast and ovarian cancer cells. A HPLC/DAD analysis on OLE has been performed to assess the total polyphenolics and other secondary metabolites content. HCEpiC, MDA-MB-231, and OVCAR-3 cell lines were used. MTS, Cytofluorimetric, Western Blot analysis were performed to analyze cell viability, cell proliferation, apoptosis, and oxidative stress. Fluorimetric and IncuCyte® analyses were carried out to evaluate apoptosis and mitochondrial function. We confirmed that OLE, containing a quantity of oleuropein of 87 % of the total extract, shows anti-proliferative and pro-apoptotic activity on MDA-MB-231 cells. For the first time, our results indicate that OLE inhibits OVCAR-3 cell viability inducing cell cycle arrest, and it also increases apoptotic cell death up-regulating the protein level of cleaved-PARP and caspase 9. Moreover, our data show that OLE treatment causes a significant decrease in mitochondrial functionality, paralleled by a reduction of mitochondrial membrane potential. Interestingly, OLE increased the level of intracellular and mitochondrial reactive oxygen species (ROS) together with a decreased activity of ROS scavenging enzymes, confirming oxidative stress in both models. Our data demonstrate that mitochondrial ROS generation represented the primary mechanism of OLE antitumor activity, as pretreatment with antioxidant N-acetylcysteine prevented OLE-induced cell cycle arrest and apoptosis.
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Affiliation(s)
- Reyes Benot-Dominguez
- Department of Life, Health and Environmental Sciences, University of L'Aquila, 67100, L'Aquila, Italy.
| | - Maria Grazia Tupone
- Department of Life, Health and Environmental Sciences, University of L'Aquila, 67100, L'Aquila, Italy; Center for Microscopy, University of L'Aquila, 67100, L'Aquila, Italy.
| | - Vanessa Castelli
- Department of Life, Health and Environmental Sciences, University of L'Aquila, 67100, L'Aquila, Italy.
| | - Michele d'Angelo
- Department of Life, Health and Environmental Sciences, University of L'Aquila, 67100, L'Aquila, Italy.
| | - Elisabetta Benedetti
- Department of Life, Health and Environmental Sciences, University of L'Aquila, 67100, L'Aquila, Italy.
| | - Massimiliano Quintiliani
- Department of Life, Health and Environmental Sciences, University of L'Aquila, 67100, L'Aquila, Italy; S.I.R.E. srl, 80129, Napoli, Italy.
| | - Benedetta Cinque
- Department of Life, Health and Environmental Sciences, University of L'Aquila, 67100, L'Aquila, Italy.
| | - Iris Maria Forte
- Cell Biology and Biotherapy Unit, Istituto Nazionale Tumori-IRCCS-Fondazione G. Pascale, I-80131, Napoli, Italy.
| | - Maria Grazia Cifone
- Department of Life, Health and Environmental Sciences, University of L'Aquila, 67100, L'Aquila, Italy.
| | - Rodolfo Ippoliti
- Department of Life, Health and Environmental Sciences, University of L'Aquila, 67100, L'Aquila, Italy.
| | - Barbara Barboni
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, 64100, Teramo, Italy.
| | - Antonio Giordano
- Sbarro Institute for Cancer Research and Molecular Medicine and Center for Biotechnology, Temple University, Philadelphia, PA, 19122, USA.
| | - Annamaria Cimini
- Department of Life, Health and Environmental Sciences, University of L'Aquila, 67100, L'Aquila, Italy; Sbarro Institute for Cancer Research and Molecular Medicine and Center for Biotechnology, Temple University, Philadelphia, PA, 19122, USA.
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10
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Wang H, Wei J, Wang B, Meng L, Xin Y, Dong L, Jiang X. Role of human papillomavirus in laryngeal squamous cell carcinoma: A meta-analysis of cohort study. Cancer Med 2019; 9:204-214. [PMID: 31733044 PMCID: PMC6943161 DOI: 10.1002/cam4.2712] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2019] [Revised: 10/25/2019] [Accepted: 10/28/2019] [Indexed: 12/20/2022] Open
Abstract
Objective To evaluate the association of human papilloma virus (HPV) infection with prognosis, specifically overall survival (OS) and disease‐free survival (DFS), in laryngeal squamous cell carcinoma (LSCC) patients. Method A systematic review and meta‐analysis were performed according to the Preferred Reporting Items for Systematic Reviews and Meta‐Analyses (PRISMA) guidelines. LSCC was confirmed on the basis of histopathology, whereas HPV status was confirmed by polymerase chain reaction. Results A total of 6539 articles were initially searched from 8 databases, of which 11 studies were eligible for our review. A total of 1442 LSCC cases were included in this analysis. Eight studies examined 3‐year OS for LSCC. The pooled hazard ratio (HR) from the 8 studies was 0.29 (95% CI: 0.25‐0.33). There was a statistically significant difference in 3‐year OS between the HPV‐negative and ‐positive groups, with the latter having a better survival. There was no statistically significant differences in 5‐ and 10‐year OS. Five studies examined 3‐ and 5‐year DFS for LSCC, whereas only 3 studies examined 10‐year DFS. There was no statistically significant difference in 3‐, 5‐, and 10‐year DFS between the HPV groups. Conclusion This study evaluated the survival impact of HPV infection in LSCC patients. The OS of the HPV‐positive group was better than that of the HPV‐negative group in terms of short‐term survival. Compared with the HPV‐negative group, the HPV‐positive group had a better trend of DFS, suggesting that a larger sample size and further exploration of the pathology and local control of HPV‐positive tumors are needed.
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Affiliation(s)
- Huanhuan Wang
- Department of Radiation Oncology, The First Hospital, Jilin University, Changchun, China
| | - Jinlong Wei
- Department of Radiation Oncology, The First Hospital, Jilin University, Changchun, China
| | - Bin Wang
- Department of Radiation Oncology, The First Hospital, Jilin University, Changchun, China
| | - Lingbin Meng
- Department of Internal Medicine, Florida Hospital, Orlando, FL, USA
| | - Ying Xin
- Key Laboratory of Pathobiology, Ministry of Education, Jilin University, Changchun, China
| | - Lihua Dong
- Department of Radiation Oncology, The First Hospital, Jilin University, Changchun, China
| | - Xin Jiang
- Department of Radiation Oncology, The First Hospital, Jilin University, Changchun, China
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Žuntar I, Putnik P, Bursać Kovačević D, Nutrizio M, Šupljika F, Poljanec A, Dubrović I, Barba FJ, Režek Jambrak A. Phenolic and Antioxidant Analysis of Olive Leaves Extracts ( Olea europaea L.) Obtained by High Voltage Electrical Discharges (HVED). Foods 2019; 8:foods8070248. [PMID: 31288471 PMCID: PMC6678916 DOI: 10.3390/foods8070248] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 07/04/2019] [Accepted: 07/05/2019] [Indexed: 02/08/2023] Open
Abstract
Background: The aim of this study was to evaluate high voltage electrical discharges (HVED) as a green technology, in order to establish the effectiveness of phenolic extraction from olive leaves against conventional extraction (CE). HVED parameters included different green solvents (water, ethanol), treatment times (3 and 9 min), gases (nitrogen, argon), and voltages (15, 20, 25 kV). Methods: Phenolic compounds were characterized by ultra-performance liquid chromatography-tandem mass spectrometer (UPLC-MS/MS), while antioxidant potency (total phenolic content and antioxidant capacity) were monitored spectrophotometrically. Data for Near infrared spectroscopy (NIR) spectroscopy, colorimetry, zeta potential, particle size, and conductivity were also reported. Results: The highest yield of phenolic compounds was obtained for the sample treated with argon/9 min/20 kV/50% (3.2 times higher as compared to CE). Obtained results suggested the usage of HVED technology in simultaneous extraction and nanoformulation, and production of stable emulsion systems. Antioxidant capacity (AOC) of obtained extracts showed no significant difference upon the HVED treatment. Conclusions: Ethanol with HVED destroys the linkage between phenolic compounds and components of the plant material to which they are bound. All extracts were compliant with legal requirements regarding content of contaminants, pesticide residues and toxic metals. In conclusion, HVED presents an excellent potential for phenolic compounds extraction for further use in functional food manufacturing.
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Affiliation(s)
- Irena Žuntar
- Faculty of Pharmacy and Biochemistry, University of Zagreb, 10000 Zagreb, Croatia
| | - Predrag Putnik
- Faculty of Food Technology and Biotechnology, University of Zagreb, 10000 Zagreb, Croatia
| | | | - Marinela Nutrizio
- Faculty of Food Technology and Biotechnology, University of Zagreb, 10000 Zagreb, Croatia
| | - Filip Šupljika
- Faculty of Food Technology and Biotechnology, University of Zagreb, 10000 Zagreb, Croatia
| | - Andreja Poljanec
- Faculty of Food Technology and Biotechnology, University of Zagreb, 10000 Zagreb, Croatia
| | - Igor Dubrović
- Teaching Institute for Public health of Primorje-Gorski Kotar County, 51000 Rijeka, Croatia
| | - Francisco J Barba
- Nutrition and Food Science Area, Preventive Medicine and Public Health, Food Sciences, Toxicology and Forensic Medicine Department, Faculty of Pharmacy, Universitat de València, Avda. Vicent Andrés Estellés, s/n, Burjassot, 46100 València, Spain
| | - Anet Režek Jambrak
- Faculty of Food Technology and Biotechnology, University of Zagreb, 10000 Zagreb, Croatia.
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