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Su Y, Zhao J, Fu H, Liu Z, Du P, Zheng J, Wu J, Zhang J. TP53 R175H mutation promotes breast cancer cell proliferation through CORO1A-P38 MAPK pathway regulation. Biochem Pharmacol 2024; 221:116047. [PMID: 38331350 DOI: 10.1016/j.bcp.2024.116047] [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: 10/30/2023] [Revised: 01/23/2024] [Accepted: 02/05/2024] [Indexed: 02/10/2024]
Abstract
Breast cancer is the most commonly diagnosed cancer in women. Among all types, triple-negative breast cancer is particularly challenging to cure because of its high recurrence rates and invasive and metastatic capacity. Although numerous studies have explored the role of TP53 mutations in cancer, there is a dearth of research regarding the correlation between TP53 mutations and breast cancer cell proliferation. In this study, our aim was to examine the impact of TP53 mutations on the prognosis of patients with breast cancer bioinformatics techniques. To detect cell proliferation, a CCK8 assay was performed, and western blotting was used to identify the expression of p53, p38, and p-p38 proteins. Cellular mRNA sequencing was used to screen target genes of TP53 mutations, and molecular docking was performed to identify the drugs that could hinder the proliferation of breast cancer cells.The results showed that the TP53 mutation rate is higher in patients with triple-negative breast cancer than non-triple-negative breast cancer, and those with TP53 mutations tended to have a poorer prognosis than those without. Patients with R175H site mutations also had shorter survival times than those without. Cytological experiments revealed that the TP53R175H mutation increases the rate of breast cancer cell proliferation. In conjunction with this, CORO1A was found to be a downstream target of TP53 mutations, and it was determined to promote breast cancer cell proliferation. Moreover, CORO1A overexpression resulted in the downregulation of p-p38 levels. Molecular docking studies further revealed that tea polyphenols can inhibit breast cancer proliferation by binding to p53.
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Affiliation(s)
- Yali Su
- Department of Clinical Laboratory, North China University of Science and Technology Affiliated Tangshan Maternal and Child Health Care Hospital-Tangshan, China; Key Laboratory of Molecular Medicine for Abnormal Development and Related Diseases in Tangshan City-Tangshan, China
| | - Jiaxuan Zhao
- Department of Clinical Laboratory, North China University of Science and Technology Affiliated Tangshan Maternal and Child Health Care Hospital-Tangshan, China; Key Laboratory of Molecular Medicine for Abnormal Development and Related Diseases in Tangshan City-Tangshan, China
| | - Haoran Fu
- Department of Clinical Laboratory, North China University of Science and Technology Affiliated Tangshan Maternal and Child Health Care Hospital-Tangshan, China; Key Laboratory of Molecular Medicine for Abnormal Development and Related Diseases in Tangshan City-Tangshan, China
| | - Zeliang Liu
- Department of Clinical Laboratory, North China University of Science and Technology Affiliated Tangshan Maternal and Child Health Care Hospital-Tangshan, China; Key Laboratory of Molecular Medicine for Abnormal Development and Related Diseases in Tangshan City-Tangshan, China
| | - Panyan Du
- Department of Clinical Laboratory, North China University of Science and Technology Affiliated Tangshan Maternal and Child Health Care Hospital-Tangshan, China; Key Laboratory of Molecular Medicine for Abnormal Development and Related Diseases in Tangshan City-Tangshan, China
| | - Jianxia Zheng
- Department of Clinical Laboratory, North China University of Science and Technology Affiliated Tangshan Maternal and Child Health Care Hospital-Tangshan, China; Key Laboratory of Molecular Medicine for Abnormal Development and Related Diseases in Tangshan City-Tangshan, China
| | - Jinghua Wu
- Department of Clinical Laboratory, North China University of Science and Technology Affiliated Tangshan Maternal and Child Health Care Hospital-Tangshan, China; Key Laboratory of Molecular Medicine for Abnormal Development and Related Diseases in Tangshan City-Tangshan, China.
| | - Jinghua Zhang
- Department of Clinical Laboratory, North China University of Science and Technology Affiliated Tangshan Maternal and Child Health Care Hospital-Tangshan, China; Key Laboratory of Molecular Medicine for Abnormal Development and Related Diseases in Tangshan City-Tangshan, China.
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Samanta S. Potential Bioactive Components and Health Promotional Benefits of Tea (Camellia sinensis). J Am Coll Nutr 2020; 41:65-93. [DOI: 10.1080/07315724.2020.1827082] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Affiliation(s)
- Saptadip Samanta
- Department of Physiology, Midnapore College, Midnapore, West Bengal, India
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Diao JX, Ou JY, Dai H, Li HY, Huang W, Hua HY, Xie T, Wang M, Yang YG. Antioxidant and Antiapoptotic Polyphenols from Green Tea Extract Ameliorate CCl4-Induced Acute Liver Injury in Mice. Chin J Integr Med 2019; 26:736-744. [DOI: 10.1007/s11655-019-3043-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/22/2018] [Indexed: 02/08/2023]
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Anti-cancer effects of polyphenols via targeting p53 signaling pathway: updates and future directions. Biotechnol Adv 2019; 38:107385. [PMID: 31004736 DOI: 10.1016/j.biotechadv.2019.04.007] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Revised: 04/14/2019] [Accepted: 04/16/2019] [Indexed: 02/06/2023]
Abstract
The anticancer effects of polyphenols are ascribed to several signaling pathways including the tumor suppressor gene tumor protein 53 (p53). Expression of endogenous p53 is silent in various types of cancers. A number of polyphenols from a wide variety of dietary sources could upregulate p53 expression in several cancer cell lines through distinct mechanisms of action. The aim of this review is to focus the significance of p53 signaling pathways and to provide molecular intuitions of dietary polyphenols in chemoprevention by monitoring p53 expression that have a prominent role in tumor suppression.
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Li F, Wang Y, Li D, Chen Y, Qiao X, Fardous R, Lewandowski A, Liu J, Chan TH, Dou QP. Perspectives on the recent developments with green tea polyphenols in drug discovery. Expert Opin Drug Discov 2018; 13:643-660. [PMID: 29688074 PMCID: PMC6287262 DOI: 10.1080/17460441.2018.1465923] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
INTRODUCTION Increasing evidence has expanded the role of green tea from a traditional beverage to a source of pharmacologically active molecules with diverse health benefits. However, conclusive clinical results are needed to better elucidate the cancer-preventive and therapeutic effects of green tea polyphenols (GTPs). Areas covered: The authors describe GTPs' chemical compositions and metabolic biotransformations, and their recent developments in drug discovery, focusing on their cancer chemopreventive and therapeutic effects. They then review the recent development of GTP-loaded nanoparticles and GTP prodrugs. Expert opinion: GTPs possess potent anticarcinogenic activities through interfering with the initiation, development and progression phases of cancer. There are several challenges (e.g. poor bioavailability) in developing GTPs as therapeutic agents. Use of nanoparticle-based delivery systems has provided unique advantages over purified GTPs. However, there is still a need to determine the actual magnitude and pharmacological mechanisms of GTPs encapsulated in nanoparticles, in order to address newly emerging safety issues associated with the potential 'local overdose' effect. The use of Pro- epigallocatechin gallate (Pro-EGCG) as a prodrug appears to offer improved in vitro stability as well as better in vivo bioavailability and efficacies in a number of animal studies, suggesting its potential as a therapeutic agent for further study and development.
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Affiliation(s)
- Feng Li
- Key Laboratory of Food Processing Technology and Quality Control in Shandong Province, College of Food Science and Engineering, Shandong Agricultural University, Taian 271018, People’s Republic of China
- Barbara Ann Karmanos Cancer Institute, Departments of Oncology, Pharmacology and Pathology, Wayne State University School of Medicine, 4100 John R Road Detroit, MI 48201, USA
| | - Yongli Wang
- Key Laboratory of Food Processing Technology and Quality Control in Shandong Province, College of Food Science and Engineering, Shandong Agricultural University, Taian 271018, People’s Republic of China
| | - Dapeng Li
- Key Laboratory of Food Processing Technology and Quality Control in Shandong Province, College of Food Science and Engineering, Shandong Agricultural University, Taian 271018, People’s Republic of China
| | - Yilun Chen
- Key Laboratory of Food Processing Technology and Quality Control in Shandong Province, College of Food Science and Engineering, Shandong Agricultural University, Taian 271018, People’s Republic of China
| | - Xuguang Qiao
- Key Laboratory of Food Processing Technology and Quality Control in Shandong Province, College of Food Science and Engineering, Shandong Agricultural University, Taian 271018, People’s Republic of China
| | - Rania Fardous
- Barbara Ann Karmanos Cancer Institute, Departments of Oncology, Pharmacology and Pathology, Wayne State University School of Medicine, 4100 John R Road Detroit, MI 48201, USA
| | - Ashton Lewandowski
- Barbara Ann Karmanos Cancer Institute, Departments of Oncology, Pharmacology and Pathology, Wayne State University School of Medicine, 4100 John R Road Detroit, MI 48201, USA
| | - Jinbao Liu
- Protein Modification and Degradation Lab, School of Basic Medical Sciences, Affiliated Tumor Hospital of Guangzhou Medical University, Guangzhou 511436, People’s Republic of China
| | - Tak-Hang Chan
- Department of Chemistry, McGill University, Montreal, Quebec, Canada; Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong
| | - Q. Ping Dou
- Barbara Ann Karmanos Cancer Institute, Departments of Oncology, Pharmacology and Pathology, Wayne State University School of Medicine, 4100 John R Road Detroit, MI 48201, USA
- Protein Modification and Degradation Lab, School of Basic Medical Sciences, Affiliated Tumor Hospital of Guangzhou Medical University, Guangzhou 511436, People’s Republic of China
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Yang G, Bibi S, Du M, Suzuki T, Zhu MJ. Regulation of the intestinal tight junction by natural polyphenols: A mechanistic perspective. Crit Rev Food Sci Nutr 2018; 57:3830-3839. [PMID: 27008212 DOI: 10.1080/10408398.2016.1152230] [Citation(s) in RCA: 80] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Impairment of the epithelial barrier function is closely linked to the pathogenesis of various gastrointestinal diseases, food allergies, type I diabetes, and other systematic diseases. Plant-derived polyphenols are natural secondary metabolites and exert various physiological benefits, including anti-inflammatory, anti-oxidative, anti-carcinogenic, and anti-aging effects. Recent studies also show the role of plant polyphenols in regulation of the intestinal barrier and prevention of intestinal inflammatory diseases. Here we summarize the regulatory pathways and mediators linking polyphenols to their beneficial effects on tight junction and gut epithelial barrier functions, and provide useful information about using polyphenols as nutraceuticals for intestinal diseases.
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Affiliation(s)
- Guan Yang
- a School of Food Science , Washington State University , Pullman , Washington , USA
| | - Shima Bibi
- a School of Food Science , Washington State University , Pullman , Washington , USA
| | - Min Du
- b Department of Animal Science , Washington State University , Pullman , Washington , USA
| | - Takuya Suzuki
- c Department of Biofunctional Science and Technology , Hiroshima University , Higashi-Hiroshima , Japan
| | - Mei-Jun Zhu
- a School of Food Science , Washington State University , Pullman , Washington , USA
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Sinha D, Biswas J, Nabavi SM, Bishayee A. Tea phytochemicals for breast cancer prevention and intervention: From bench to bedside and beyond. Semin Cancer Biol 2017; 46:33-54. [DOI: 10.1016/j.semcancer.2017.04.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Revised: 03/25/2017] [Accepted: 04/01/2017] [Indexed: 02/06/2023]
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Synthesis of Polyphenon-60 Functionalized Bimetallic Ag–Pt Nanostructures that Inhibit Proliferation of SiHa Cells. J CLUST SCI 2016. [DOI: 10.1007/s10876-016-1142-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Cao J, Han J, Xiao H, Qiao J, Han M. Effect of Tea Polyphenol Compounds on Anticancer Drugs in Terms of Anti-Tumor Activity, Toxicology, and Pharmacokinetics. Nutrients 2016; 8:nu8120762. [PMID: 27983622 PMCID: PMC5188417 DOI: 10.3390/nu8120762] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Revised: 11/17/2016] [Accepted: 11/21/2016] [Indexed: 12/16/2022] Open
Abstract
Multidrug resistance and various adverse side effects have long been major problems in cancer chemotherapy. Recently, chemotherapy has gradually transitioned from mono-substance therapy to multidrug therapy. As a result, the drug cocktail strategy has gained more recognition and wider use. It is believed that properly-formulated drug combinations have greater therapeutic efficacy than single drugs. Tea is a popular beverage consumed by cancer patients and the general public for its perceived health benefits. The major bioactive molecules in green tea are catechins, a class of flavanols. The combination of green tea extract or green tea catechins and anticancer compounds has been paid more attention in cancer treatment. Previous studies demonstrated that the combination of chemotherapeutic drugs and green tea extract or tea polyphenols could synergistically enhance treatment efficacy and reduce the adverse side effects of anticancer drugs in cancer patients. In this review, we summarize the experimental evidence regarding the effects of green tea-derived polyphenols in conjunction with chemotherapeutic drugs on anti-tumor activity, toxicology, and pharmacokinetics. We believe that the combination of multidrug cancer treatment with green tea catechins may improve treatment efficacy and diminish negative side effects.
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Affiliation(s)
- Jianhua Cao
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China.
| | - Jie Han
- Analytical Center, Beijing Normal University, Beijing 100875, China.
| | - Hao Xiao
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China.
| | - Jinping Qiao
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China.
| | - Mei Han
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China.
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Siddiqi KS, Husen A. Green Synthesis, Characterization and Uses of Palladium/Platinum Nanoparticles. NANOSCALE RESEARCH LETTERS 2016; 11:482. [PMID: 27807824 PMCID: PMC5093107 DOI: 10.1186/s11671-016-1695-z] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2016] [Accepted: 10/19/2016] [Indexed: 05/22/2023]
Abstract
Biogenic synthesis of palladium (Pd) and platinum (Pt) nanoparticles from plants and microbes has captured the attention of many researchers because it is economical, sustainable and eco-friendly. Plant and their parts are known to have various kinds of primary and secondary metabolites which reduce the metal salts to metal nanoparticles. Shape, size and stability of Pd and Pt nanoparticles are influenced by pH, temperature, incubation time and concentrations of plant extract and that of the metal salt. Pd and Pt nanoparticles are broadly used as catalyst, as drug, drug carrier and in cancer treatment. They have shown size- and shape-dependent specific and selective therapeutic properties. In this review, we have discussed the biogenic fabrication of Pd/Pt nanoparticles, their potential application as catalyst, medicine, biosensor, medical diagnostic and pharmaceuticals.
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Affiliation(s)
| | - Azamal Husen
- Department of Biology, College of Natural and Computational Sciences, University of Gondar, PO Box #196, Gondar, Ethiopia
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12
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Alshatwi AA, Periasamy VS, Athinarayanan J, Elango R. Synergistic anticancer activity of dietary tea polyphenols and bleomycin hydrochloride in human cervical cancer cell: Caspase-dependent and independent apoptotic pathways. Chem Biol Interact 2016; 247:1-10. [PMID: 26800624 DOI: 10.1016/j.cbi.2016.01.012] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Revised: 12/14/2015] [Accepted: 01/15/2016] [Indexed: 11/15/2022]
Abstract
Bleomycin is a chemotherapeutic agent that is frequently used in the treatment of various cancers. Bleomycin causes serious adverse effects via antioxidant defense abnormalities against reactive oxygen species (ROS). However, the current cervical cancer monodrug therapy strategy has failed to produce the expected outcomes; hence, combinational therapies are gaining great interest. Tea polyphenols are also effective antioxidative and chemo-preventive agents. However, the combined effect of tea polyphenol (TPP) and bleomycin (BLM) against cervical cancer remains unknown. In this study, we focused on the potential of TPP on BLM anticancer activity against cervical cancer cells. Cervical cancer cells (SiHa) were treated with various concentrations of TPP, BLM and TPP combined with BLM (TPP-BLM), and their effects on cell growth, intracellular reactive oxygen species, poly-caspase activity, early apoptosis and the expression of caspase-3, caspase-8 and caspase-9, Bcl-2 and p53 were assessed. The MTT assay revealed that the SiHa cells were less sensitive to growth inhibition by TPP treatment compared with both BLM and the combination therapy. Nuclear staining indicated that exposure to TPP-BLM increased the percentage of apoptotic nuclei compared with a mono-agent treatment. Caspase activation assay demonstrated that proportion of early and late apoptotic/secondary necrotic cells was higher in the cells treated with the combination therapy than in those treated with either TPP or BLM alone. The TPP-BLM treatment synergistically induced apoptosis through caspase-3, caspase-8 and caspase-9 activation, Bcl-2 upregulation and p53 overexpression. This study suggests that TPP-BLM may be used as an efficient antioxidant-based combination therapy for cervical cancer.
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Affiliation(s)
- Ali A Alshatwi
- Nanobiotechnology and Molecular Biology Research Lab, Department of Food Science and Nutrition, College of Food and Agriculture Sciences, King Saud University, Riyadh, Saudi Arabia.
| | - Vaiyapuri Subbarayan Periasamy
- Nanobiotechnology and Molecular Biology Research Lab, Department of Food Science and Nutrition, College of Food and Agriculture Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Jegan Athinarayanan
- Nanobiotechnology and Molecular Biology Research Lab, Department of Food Science and Nutrition, College of Food and Agriculture Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Ramesh Elango
- Nanobiotechnology and Molecular Biology Research Lab, Department of Food Science and Nutrition, College of Food and Agriculture Sciences, King Saud University, Riyadh, Saudi Arabia
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Singh M, Bhatnagar P, Mishra S, Kumar P, Shukla Y, Gupta KC. PLGA-encapsulated tea polyphenols enhance the chemotherapeutic efficacy of cisplatin against human cancer cells and mice bearing Ehrlich ascites carcinoma. Int J Nanomedicine 2015; 10:6789-809. [PMID: 26586942 PMCID: PMC4636172 DOI: 10.2147/ijn.s79489] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
The clinical success of the applicability of tea polyphenols awaits efficient systemic delivery and bioavailability. Herein, following the concept of nanochemoprevention, which uses nanotechnology for enhancing the efficacy of chemotherapeutic drugs, we employed tea polyphenols, namely theaflavin (TF) and epigallocatechin-3-gallate (EGCG) encapsulated in a biodegradable nanoparticulate formulation based on poly(lactide-co-glycolide) (PLGA) with approximately 26% and 18% encapsulation efficiency, respectively. It was observed that TF/EGCG encapsulated PLGA nanoparticles (NPs) offered an up to ~7-fold dose advantage when compared with bulk TF/EGCG in terms of exerting its antiproliferative effects and also enhanced the anticancer potential of cisplatin (CDDP) in A549 (lung carcinoma), HeLa (cervical carcinoma), and THP-1 (acute monocytic leukemia) cells. Cell cycle analysis revealed that TF/EGCG-NPs were more efficient than bulk TF/EGCG in sensitizing A549 cells to CDDP-induced apoptosis, with a dose advantage of up to 20-fold. Further, TF/EGCG-NPs, alone or in combination with CDDP, were more effective in inhibiting NF-κB activation and in suppressing the expression of cyclin D1, matrix metalloproteinase-9, and vascular endothelial growth factor, involved in cell proliferation, metastasis, and angiogenesis, respectively. EGCG and TF-NPs were also found to be more effective than bulk TF/EGCG in inducing the cleavage of caspase-3 and caspase-9 and Bax/Bcl2 ratio in favor of apoptosis. Further, in vivo evaluation of these NPs in combination with CDDP showed an increase in life span (P<0.05) in mice bearing Ehrlich's ascites carcinoma cells, with apparent regression of tumor volume in comparison with mice treated with bulk doses with CDDP. These results indicate that EGCG and TF-NPs have superior cancer chemosensitization activity when compared with bulk TF/EGCG.
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Affiliation(s)
- Madhulika Singh
- CSIR-Indian Institute of Toxicology Research, Lucknow, India
| | - Priyanka Bhatnagar
- CSIR-Institute of Genomics and Integrative Biology, Delhi University Campus, Delhi, India
| | - Sanjay Mishra
- CSIR-Indian Institute of Toxicology Research, Lucknow, India
| | - Pradeep Kumar
- CSIR-Institute of Genomics and Integrative Biology, Delhi University Campus, Delhi, India
| | | | - Kailash Chand Gupta
- CSIR-Indian Institute of Toxicology Research, Lucknow, India ; CSIR-Institute of Genomics and Integrative Biology, Delhi University Campus, Delhi, India
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Alshatwi AA, Athinarayanan J, Periasamy VS. Green synthesis of bimetallic Au@Pt nanostructures and their application for proliferation inhibition and apoptosis induction in human cervical cancer cell. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2015; 26:148. [PMID: 25764083 DOI: 10.1007/s10856-015-5468-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2014] [Accepted: 01/11/2015] [Indexed: 06/04/2023]
Abstract
Bimetallic Au@Pt nanostructures (Au@Pts) are potential candidates for optical, electrical, catalytic and biological applications. However, methods for the fabrication of Au@Pts using total tea polyphenols (TPPs), studies of the mechanism of action of Au@Pts on biological systems and studies on the application of Au@Pts in cancer diagnosis and therapy are sparse. In this study, we developed a simple, eco-friendly and low-cost method for the synthesis of Au@Pts to examine the cytotoxic effect of these Au@Pts on human cervical cancers in vitro. The gold and platinum ions were successfully reduced simultaneously using TPPs at room temperature. The prepared Au@Pts were characterized using UV-Vis spectrophotometery, X-ray diffractometery (XRD), energy-dispersive X-ray spectroscopy (EDS), and transmission electron microscopy (TEM). EDS and XRD confirmed the formation of the Au@Pt. Formation of Au@Pts with a size of 5-20 nm was confirmed using TEM. The cytotoxic properties of the Au@Pts were evaluated in human cervical cancer cells (SiHa). The cell viability results revealed that Au@Pts induce cell death in a dose- and time-dependent manner. The morphological features of the Au@Pt-exposed SiHa cells were observed and indicated cell death via cell shrinkage, intranucleosomal DNA fragmentation and chromatin condensation. During progression of the different phases of the cell cycle, the proportion of cells in the G2/M phase of the treated SiHa cells was significantly increased, which strongly confirmed that the Au@Pts induced apoptosis through the G2/M phase check points. Our findings demonstrate the activity of Au@Pts against cervical cancer cells and reveal strategies for the development of highly active bimetallic nanostructures for cancer therapeutics.
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Affiliation(s)
- Ali A Alshatwi
- Nanobiotechnology and Molecular Biology Research Lab, Department of Food Science and Nutrition, College of Food Science and Agriculture, King Saud University, P.O. Box 2460, Riyadh, 11451, Kingdom of Saudi Arabia,
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Alshatwi AA, Athinarayanan J, Vaiyapuri Subbarayan P. Green synthesis of platinum nanoparticles that induce cell death and G2/M-phase cell cycle arrest in human cervical cancer cells. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2015; 26:5330. [PMID: 25577212 DOI: 10.1007/s10856-014-5330-1] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Accepted: 07/20/2014] [Indexed: 05/27/2023]
Abstract
Platinum-based chemotherapeutic drugs, including cisplatin, carboplatin, and oxaliplatin, have been used to manage cancer in spite of dose-dependent side effects, including nephrotoxicity, neurotoxicity and ototoxicity. These disadvantages have prompted the development of new strategies for cancer therapy that utilize functionalized nanoparticles as nanomedicines. In the present investigation, we have synthesized platinum nanoparticles using tea polyphenol (TPP) as both a reducing and surface modifying agent. The crystalline nature and morphology of the prepared TPP-functionalized platinum nanoparticles (TPP@Pt) were analyzed using X-ray diffraction (XRD) and transmission electron microscopy (TEM). The XRD results revealed that the TPP@Pt had a crystalline nature with a face-centered cubic structure. TEM imaging suggested that the TTP@Pt are flower shaped with a well-dispersed 30-60 nm-sized TPP@Pt formation. Cervical cancer cells (SiHa) were then treated with different concentrations of TPP@Pt. The effects of TPP@Pt on cell viability, nuclear morphology and cell cycle distribution were investigated. A cell viability assay revealed that the proliferation of SiHa cells was inhibited by TPP@Pt. Propidium iodide nuclear staining indicated that TPP@Pt induced nuclear fragmentation and chromatin condensation. Treatment with TPP@Pt significantly increased the percentage of cells in the G2/M phase, which indicates induced cell cycle arrest in the G2/M phase and an increased number of cells in the subG0 cell death phase. These findings highlight a potential use of TPP@Pt in cervical cancer treatment.
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Affiliation(s)
- Ali A Alshatwi
- Nanobiotechnology and Molecular Biology Research Laboratory, Department of Food Science and Nutrition, College of Food Science and Agriculture, King Saud University, P.O. Box 2460, Riyadh, 11451, Kingdom of Saudi Arabia,
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Chen X, Li Y, Lin Q, Wang Y, Sun H, Wang J, Cui G, Cai L, Dong X. Tea polyphenols induced apoptosis of breast cancer cells by suppressing the expression of Survivin. Sci Rep 2014; 4:4416. [PMID: 24646833 PMCID: PMC3960584 DOI: 10.1038/srep04416] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2013] [Accepted: 02/21/2014] [Indexed: 11/09/2022] Open
Abstract
To study the mechanism of tea polyphenols (TP)-induced apoptosis of breast cancer cells. Proliferation of MCF-7 and SK-BR-3 cells was evaluated by MTT assays. Cellular ultrastructure was examined by electron microscopy. Apoptosis was detected by TUNEL. PCNA、 Cyclin D1、 Cyclin E and Survivin expression was measured by Western blot. Cell proliferation was significantly inhibited by TP. Spindle and round cells were loosely distributed with increased particles after TP treatment. Increased cell size, frequent nuclear atypia and a collapse of apoptosis were observed. The nucleus was pushed towards one side, while the cytoplasm was rich in free ribosome. The membrane of mitochondria was thickening, and the cell apoptotic body was observed. TP treated cells experienced significantly enhanced apoptosis compared with 5-Fu treated or control groups. The expression of survivin was downregulated by TP. To conclude, TP can inhibit cell growth and induce apoptosis through downregulating the expression of survivin in breast cancer.
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Affiliation(s)
- Xuesong Chen
- 1] Department of Internal Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang Province, China [2]
| | - Yu Li
- 1] Bacteriologic Laboratory, Harbin Center for Disease Control and Prevention, Harbin, Heilongjiang Province, China [2]
| | - Qiushi Lin
- 1] Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, The University of Rhode Island, Pharmacy Building, 7 Greenhouse Road, Kingston, RI 02881, USA [2]
| | - Yan Wang
- Bacteriologic Laboratory, Harbin Center for Disease Control and Prevention, Harbin, Heilongjiang Province, China
| | - Hong Sun
- Bacteriologic Laboratory, Harbin Center for Disease Control and Prevention, Harbin, Heilongjiang Province, China
| | - Jian Wang
- Bacteriologic Laboratory, Harbin Center for Disease Control and Prevention, Harbin, Heilongjiang Province, China
| | - Guoquan Cui
- Bacteriologic Laboratory, Harbin Center for Disease Control and Prevention, Harbin, Heilongjiang Province, China
| | - Li Cai
- Department of Internal Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang Province, China
| | - Xiaoqun Dong
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, The University of Rhode Island, Pharmacy Building, 7 Greenhouse Road, Kingston, RI 02881, USA
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Yu HZ, Li YH, Wang RX, Zhou X, Yu MM, Ge Y, Zhao J, Fan TJ. Cytotoxicity of lidocaine to human corneal endothelial cells in vitro. Basic Clin Pharmacol Toxicol 2014; 114:352-9. [PMID: 24373304 DOI: 10.1111/bcpt.12186] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2013] [Accepted: 10/22/2013] [Indexed: 11/28/2022]
Abstract
Lidocaine has been reported to induce apoptosis on rabbit corneal endothelial cells. However, the apoptotic effect and exact mechanism involved in cytotoxicity of lidocaine are not well-established in human corneal endothelial (HCE) cells. In this study, we investigated the apoptosis-inducing effect of lidocaine on HCE cells in vitro. After HCE cells were treated with lidocaine at concentrations of 0.15625-10.0 g/l, the morphology and ultrastructure of the cells were observed by inverted light microscope and transmission electron microscope (TEM). Cell viability was measured by MTT assay, and the apoptotic ratio was evaluated with flow cytometry and fluorescent microscopic counting after FITC-Annexin V/PI and AO/EB staining. DNA fragmentation was detected by electrophoresis, and the activation of caspases was evaluated by ELISA. In addition, changes in mitochondrial membrane potential were determined by JC-1 staining. Results suggest that lidocaine above 1.25 g/l reduced cellular viability and triggered apoptosis in HCE cells in a time- and dose-dependent manner. Diminishment of ΔΨm and the activation of caspases indicate that lidocaine-induced apoptosis was caspase dependent and may be related to mitochondrial pathway.
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Affiliation(s)
- Hao-Ze Yu
- Laboratory for Corneal Tissue Engineering, College of Marine Life Sciences, Ocean University of China, Qingdao, China
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