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Bunjaku J, Lama A, Pesanayi T, Shatri J, Chamberlin M, Hoxha I. Lung Cancer and Lifestyle Factors: Umbrella Review. Hematol Oncol Clin North Am 2024; 38:171-184. [PMID: 37369612 DOI: 10.1016/j.hoc.2023.05.018] [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] [Indexed: 06/29/2023]
Abstract
This review explores the effect of common everyday factors, such as alcohol, tea and coffee consumption, on the risk for lung cancer. We performed an umbrella review of current systematic reviews. The risk for lung cancer was increased with alcohol or coffee intake and decreased with tea intake. While evidence for alcohol is of low quality, the effect of coffee may be confounded by the smoking effect. The protective effect of tea intake is present, but the evidence is also of low quality.
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Affiliation(s)
- Jeta Bunjaku
- Evidence Synthesis Group, Ali Vitia Street PN, 10000 Prishtina, Kosovo
| | - Arber Lama
- Evidence Synthesis Group, Ali Vitia Street PN, 10000 Prishtina, Kosovo
| | - Tawanda Pesanayi
- Evidence Synthesis Group, Ali Vitia Street PN, 10000 Prishtina, Kosovo
| | - Jeton Shatri
- Clinic of Radiology, University Clinical Center of Kosovo, 10000 Prishtina, Kosovo; Department of Anatomy, University of Prishtina, 10000 Prishtina, Kosovo
| | - Mary Chamberlin
- Dartmouth Cancer Center at Dartmouth-Hitchcock Medical Center Lebanon, NH 03756, USA
| | - Ilir Hoxha
- Evidence Synthesis Group, Ali Vitia Street PN, 10000 Prishtina, Kosovo; The Dartmouth Institute for Health Policy and Clinical Practice, Geisel School of Medicine at Dartmouth, Lebanon NH 03766, USA.
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Proença C, Freitas M, Ribeiro D, Rufino AT, Fernandes E, Ferreira de Oliveira JMP. The role of flavonoids in the regulation of epithelial-mesenchymal transition in cancer: A review on targeting signaling pathways and metastasis. Med Res Rev 2023; 43:1878-1945. [PMID: 37147865 DOI: 10.1002/med.21966] [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: 07/22/2022] [Revised: 03/20/2023] [Accepted: 04/12/2023] [Indexed: 05/07/2023]
Abstract
One of the hallmarks of cancer is metastasis, a process that entails the spread of cancer cells to distant regions in the body, culminating in tumor formation in secondary organs. Importantly, the proinflammatory environment surrounding cancer cells further contributes to cancer cell transformation and extracellular matrix destruction. During metastasis, front-rear polarity and emergence of migratory and invasive features are manifestations of epithelial-mesenchymal transition (EMT). A variety of transcription factors (TFs) are implicated in the execution of EMT, the most prominent belonging to the Snail Family Transcriptional Repressor (SNAI) and Zinc Finger E-Box Binding Homeobox (ZEB) families of TFs. These TFs are regulated by interaction with specific microRNAs (miRNAs), as miR34 and miR200. Among the several secondary metabolites produced in plants, flavonoids constitute a major group of bioactive molecules, with several described effects including antioxidant, antiinflammatory, antidiabetic, antiobesogenic, and anticancer effects. This review scrutinizes the modulatory role of flavonoids on the activity of SNAI/ZEB TFs and on their regulatory miRNAs, miR-34, and miR-200. The modulatory role of flavonoids can attenuate mesenchymal features and stimulate epithelial features, thereby inhibiting and reversing EMT. Moreover, this modulation is concomitant with the attenuation of signaling pathways involved in diverse processes as cell proliferation, cell growth, cell cycle progression, apoptosis inhibition, morphogenesis, cell fate, cell migration, cell polarity, and wound healing. The antimetastatic potential of these versatile compounds is emerging and represents an opportunity for the synthesis of more specific and potent agents.
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Affiliation(s)
- Carina Proença
- LAQV, REQUIMTE, Laboratory of Applied Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal
| | - Marisa Freitas
- LAQV, REQUIMTE, Laboratory of Applied Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal
| | - Daniela Ribeiro
- LAQV, REQUIMTE, Laboratory of Applied Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal
| | - Ana T Rufino
- LAQV, REQUIMTE, Laboratory of Applied Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal
| | - Eduarda Fernandes
- LAQV, REQUIMTE, Laboratory of Applied Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal
| | - José Miguel P Ferreira de Oliveira
- LAQV, REQUIMTE, Laboratory of Applied Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal
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Targeting Mesothelin in Solid Tumours: Anti-mesothelin Antibody and Drug Conjugates. Curr Oncol Rep 2023; 25:309-323. [PMID: 36763234 DOI: 10.1007/s11912-023-01367-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/14/2022] [Indexed: 02/11/2023]
Abstract
PURPOSE OF REVIEW This review aims to summarise the pathobiological role of mesothelin and the current data on therapeutic antibodies targeting mesothelin in solid tumours. RECENT FINDINGS High mesothelin expression is restricted to the pericardium, pleura, peritoneum and tunica vaginalis. Mesothelin does not seem to have any normal biological function in adult normal tissues. Mesothelin is highly expressed in mesothelioma, serous ovarian cancer, pancreatic cancer and some gastric cancer and adenocarcinoma of the lung and is responsible for tumour proliferation, metastasis, resistance to chemotherapy or radiation and evasion of immune system. To date, antibody, antibody drug conjugates and bispecific antibodies with immune checkpoints have been investigated in mesothelin expressing malignancies. After a couple of decades of clinical investigation in antibody targeting mesothelin, the therapeutic benefit is relatively modest. Novel delivery of mesothelin targeting agents, more potent payload in antibody drug conjugates and immune checkpoint inhibitor, may improve therapeutic benefit.
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Li XX, Liu C, Dong SL, Ou CS, Lu JL, Ye JH, Liang YR, Zheng XQ. Anticarcinogenic potentials of tea catechins. Front Nutr 2022; 9:1060783. [PMID: 36545470 PMCID: PMC9760998 DOI: 10.3389/fnut.2022.1060783] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Accepted: 11/21/2022] [Indexed: 12/07/2022] Open
Abstract
Catechins are a cluster of polyphenolic bioactive components in green tea. Anticarcinogenic effects of tea catechins have been reported since the 1980s, but it has been controversial. The present paper reviews the advances in studies on the anticarcinogenic activities of tea and catechins, including epidemiological evidence and anticarcinogenic mechanism. Tea catechins showed antagonistic effects on many cancers, such as gynecological cancers, digestive tract cancers, incident glioma, liver and gallbladder cancers, lung cancer, etc. The mechanism underlying the anticarcinogenic effects of catechins involves in inhibiting the proliferation and growth of cancer cells, scavenging free radicals, suppressing metastasis of cancer cells, improving immunity, interacting with other anticancer drugs, and regulating signaling pathways. The inconsistent results and their causes are also discussed in this paper.
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Affiliation(s)
- Xiao-Xiang Li
- Tea Research Institute, Zhejiang University, Hangzhou, China
| | - Chang Liu
- Tea Science Society of China, Hangzhou, China
| | - Shu-Ling Dong
- Tea Research Institute, Zhejiang University, Hangzhou, China
| | - Can-Song Ou
- Development Center of Liubao Tea Industry, Cangwu, China
| | - Jian-Liang Lu
- Tea Research Institute, Zhejiang University, Hangzhou, China
| | - Jian-Hui Ye
- Tea Research Institute, Zhejiang University, Hangzhou, China
| | - Yue-Rong Liang
- Tea Research Institute, Zhejiang University, Hangzhou, China,*Correspondence: Yue-Rong Liang,
| | - Xin-Qiang Zheng
- Tea Research Institute, Zhejiang University, Hangzhou, China,Xin-Qiang Zheng,
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Yin X, Xu R, Song J, Ruze R, Chen Y, Wang C, Xu Q. Lipid metabolism in pancreatic cancer: emerging roles and potential targets. CANCER COMMUNICATIONS (LONDON, ENGLAND) 2022; 42:1234-1256. [PMID: 36107801 PMCID: PMC9759769 DOI: 10.1002/cac2.12360] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 07/05/2022] [Accepted: 08/05/2022] [Indexed: 01/25/2023]
Abstract
Pancreatic cancer is one of the most serious health issues in developed and developing countries, with a 5-year overall survival rate currently <9%. Patients typically present with advanced disease due to vague symptoms or lack of screening for early cancer detection. Surgical resection represents the only chance for cure, but treatment options are limited for advanced diseases, such as distant metastatic or locally progressive tumors. Although adjuvant chemotherapy has improved long-term outcomes in advanced cancer patients, its response rate is low. So, exploring other new treatments is urgent. In recent years, increasing evidence has shown that lipid metabolism can support tumorigenesis and disease progression as well as treatment resistance through enhanced lipid synthesis, storage, and catabolism. Therefore, a better understanding of lipid metabolism networks may provide novel and promising strategies for early diagnosis, prognosis estimation, and targeted therapy for pancreatic cancer patients. In this review, we first enumerate and discuss current knowledge about the advances made in understanding the regulation of lipid metabolism in pancreatic cancer. In addition, we summarize preclinical studies and clinical trials with drugs targeting lipid metabolic systems in pancreatic cancer. Finally, we highlight the challenges and opportunities for targeting lipid metabolism pathways through precision therapies in pancreatic cancer.
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Affiliation(s)
- Xinpeng Yin
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical SciencesPeking Union Medical CollegeBeijing100023P. R China
| | - Ruiyuan Xu
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical SciencesPeking Union Medical CollegeBeijing100023P. R China
| | - Jianlu Song
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical SciencesPeking Union Medical CollegeBeijing100023P. R China
| | - Rexiati Ruze
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical SciencesPeking Union Medical CollegeBeijing100023P. R China
| | - Yuan Chen
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical SciencesPeking Union Medical CollegeBeijing100023P. R China
| | - Chengcheng Wang
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical SciencesPeking Union Medical CollegeBeijing100023P. R China
| | - Qiang Xu
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical SciencesPeking Union Medical CollegeBeijing100023P. R China
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Farhan M. Green Tea Catechins: Nature’s Way of Preventing and Treating Cancer. Int J Mol Sci 2022; 23:ijms231810713. [PMID: 36142616 PMCID: PMC9501439 DOI: 10.3390/ijms231810713] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 09/12/2022] [Accepted: 09/12/2022] [Indexed: 12/02/2022] Open
Abstract
Green tea’s (Camellia sinensis) anticancer and anti-inflammatory effects are well-known. Catechins are the most effective antioxidants among the physiologically active compounds found in Camellia sinesis. Recent research demonstrates that the number of hydroxyl groups and the presence of specific structural groups have a substantial impact on the antioxidant activity of catechins. Unfermented green tea is the finest source of these chemicals. Catechins have the ability to effectively neutralize reactive oxygen species. The catechin derivatives of green tea include epicatechin (EC), epigallocatechin (EGC), epicatechin gallate (ECG) and epigallocatechin gallate (EGCG). EGCG has the greatest anti-inflammatory and anticancer potential. Notably, catechins in green tea have been explored for their ability to prevent a variety of cancers. Literature evidence, based on epidemiological and laboratory studies, indicates that green tea catechins have certain properties that can serve as the basis for their consideration as lead molecules in the synthesis of novel anticancer drugs and for further exploration of their role as pharmacologically active natural adjuvants to standard chemotherapeutics. The various sections of the article will focus on how catechins affect the survival, proliferation, invasion, angiogenesis, and metastasis of tumors by modulating cellular pathways.
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Affiliation(s)
- Mohd Farhan
- Department of Basic Sciences, Preparatory Year Deanship, King Faisal University, Al-Ahsa 31982, Saudi Arabia
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Barberino RS, Lins TLBG, Monte APO, Silva RLS, Andrade KO, Campinho DSP, Palheta Junior RC, Smitz JEJ, Matos MHT. Epigallocatechin-3-gallate attenuates cyclophosphamide-induced damage in mouse ovarian tissue via suppressing inflammation, apoptosis, and expression of phosphorylated Akt, FOXO3a and rpS6. Reprod Toxicol 2022; 113:42-51. [PMID: 35981663 DOI: 10.1016/j.reprotox.2022.08.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 08/12/2022] [Accepted: 08/12/2022] [Indexed: 11/30/2022]
Abstract
This study was conducted to evaluate the protective effects of epigallocatechin-3-gallate (EGCG) against ovarian toxicity in cyclophosphamide-treated mice and to verify the possible involvement of phosphorylated Akt, FOXO3a and rpS6 in the EGCG actions. Mice received saline solution (i.p.; control) or a single dose of cyclophosphamide (200 mg/kg body weight, i.p.) or mice were pretreated with N-acetylcysteine (150 mg/kg body weight, i.p.; positive control) or with EGCG (5, 25 or 50 mg/kg body weight, i.p.) once daily for three days followed by injection with single dose of cyclophosphamide (200 mg/kg body weight, i.p.). Thereafter, the mice were euthanized, and the ovaries were harvested and destined to histological (follicular morphology and activation), immunohistochemistry (cleaved caspase-3 and TNF-α) and fluorescence (mitochondrial activity and GSH concentrations) analyses. Furthermore, we examined the participation of p-Akt, p-FOXO3a and p-rpS6 in the protective effects of EGCG in cyclophosphamide-induced ovarian damage by immunohistochemical staining. The results showed that pretreatment with N-acetylcysteine or EGCG at 25 and 50 mg/kg before cyclophosphamide administration preserved the normal follicular morphology, prevented primordial follicle loss, reduced atresia, inflammation, and mitochondrial damage, and increased GSH concentrations compared to the only cyclophosphamide treatment. Additionally, pretreatment with 25 mg/kg EGCG regulated phosphorylated Akt, FOXO3a and rpS6 after cyclophosphamide treatment. In conclusion, short-time pretreatment with 25 mg/kg EGCG can prevent follicle loss in cyclophosphamide-treated mice by reducing oxidative damage, inflammation, and apoptosis, and regulating of p-Akt, p-FOXO3a and p-rpS6.
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Affiliation(s)
- Ricássio S Barberino
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley - UNIVASF, Petrolina, Brazil.
| | - Thae Lanne B G Lins
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley - UNIVASF, Petrolina, Brazil
| | - Alane P O Monte
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley - UNIVASF, Petrolina, Brazil
| | - Regina Lucia S Silva
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley - UNIVASF, Petrolina, Brazil
| | - Kíscyla O Andrade
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley - UNIVASF, Petrolina, Brazil
| | - Daniela S P Campinho
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley - UNIVASF, Petrolina, Brazil
| | - Raimundo C Palheta Junior
- Laboratory of Veterinary Pharmacology, Department of Veterinary Medicine, Federal University of São Francisco Valley - UNIVASF, Petrolina, Brazil
| | - Johan E J Smitz
- Follicle Biology Laboratory, Free University Brussels - VUB, Brussels, Belgium
| | - Maria Helena T Matos
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley - UNIVASF, Petrolina, Brazil
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Green Tea ( Camellia sinensis): A Review of Its Phytochemistry, Pharmacology, and Toxicology. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27123909. [PMID: 35745040 PMCID: PMC9231383 DOI: 10.3390/molecules27123909] [Citation(s) in RCA: 42] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 06/11/2022] [Accepted: 06/13/2022] [Indexed: 12/21/2022]
Abstract
Objectives Green tea (Camellia sinensis) is a kind of unfermented tea that retains the natural substance in fresh leaves to a great extent. It is regarded as the second most popular drink in the world besides water. In this paper, the phytochemistry, pharmacology, and toxicology of green tea are reviewed systematically and comprehensively. Key findings Green tea has been demonstrated to be good for human health. Nowadays, multiple pharmacologically active components have been isolated and identified from green tea, including tea polyphenols, alkaloids, amino acids, polysaccharides, and volatile components. Recent studies have demonstrated that green tea shows versatile pharmacological activities, such as antioxidant, anticancer, hypoglycemic, antibacterial, antiviral, and neuroprotective. Studies on the toxic effects of green tea extract and its main ingredients have also raised concerns including hepatotoxicity and DNA damage. Summary Green tea can be used to assist the treatment of diabetes, Alzheimer’s disease, oral cancer, and dermatitis. Consequently, green tea has shown promising practical prospects in health care and disease prevention.
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BEYAZ S, GÖK Ö, ASLAN A. The therapeutic effects and antioxidant properties of epigallocatechin-3 gallate: A new review. INTERNATIONAL JOURNAL OF SECONDARY METABOLITE 2022. [DOI: 10.21448/ijsm.1017559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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10
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Periyasamy L, Muruganantham B, Park WY, Muthusami S. Phyto-targeting the CEMIP Expression as a Strategy to Prevent Pancreatic Cancer Metastasis. Curr Pharm Des 2022; 28:922-946. [PMID: 35236267 DOI: 10.2174/1381612828666220302153201] [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: 04/08/2021] [Accepted: 12/16/2021] [Indexed: 11/22/2022]
Abstract
INTRODUCTION Metastasis of primary pancreatic cancer (PC) to adjacent or distant organs is responsible for the poor survival rate of affected individuals. Chemotherapy, radiotherapy, and immunotherapy are currently being prescribed to treat PC in addition to surgical resection. Surgical resection is the preferred treatment for PC that leads to 20% of 5-year survival, but only less than 20% of patients are eligible for surgical resection because of the poor prognosis. To improve the prognosis and clinical outcome, early diagnostic markers need to be identified, and targeting them would be of immense benefit to increase the efficiency of the treatment. Cell migration-inducing hyaluronan-binding protein (CEMIP) is identified as an important risk factor for the metastasis of various cancers, including PC. Emerging studies have pointed out the crucial role of CEMIP in the regulation of various signaling mechanisms, leading to enhanced migration and metastasis of PC. METHODS The published findings on PC metastasis, phytoconstituents, and CEMIP were retrieved from Pubmed, ScienceDirect, and Cochrane Library. Computational tools, such as gene expression profiling interactive analysis (GEPIA) and Kaplan-Meier (KM) plotter, were used to study the relationship between CEMIP expression and survival of PC individuals. RESULTS Gene expression analysis using the GEPIA database identified a stupendous increase in the CEMIP transcript in PC compared to adjacent normal tissues. KM plotter analysis revealed the impact of CEMIP on the overall survival (OS) and disease-free survival (DFS) among PC patients. Subsequently, several risk factors associated with PC development were screened, and their ability to regulate CEMIP gene expression was analyzed using computational tools. CONCLUSION The current review is focused on gathering information regarding the regulatory role of phytocomponents in PC migration and exploring their possible impact on the CEMIP expression.
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Affiliation(s)
- Loganayaki Periyasamy
- Department of Biochemistry, Karpagam Academy of Higher Education, Coimbatore, Tamil Nadu, 641 021, India
| | - Bharathi Muruganantham
- Karpagam Cancer Research Centre, Karpagam Academy of Higher Education, Coimbatore, Tamil Nadu, 641 021, India
| | - Woo-Yoon Park
- Department of Radiation Oncology, Chungbuk National University College of Medicine, Cheongju 28644, Republic of Korea
| | - Sridhar Muthusami
- Department of Biochemistry, Karpagam Academy of Higher Education, Coimbatore, Tamil Nadu, 641 021, India
- Karpagam Cancer Research Centre, Karpagam Academy of Higher Education, Coimbatore, Tamil Nadu, 641 021, India
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Secci R, Hartmann A, Walter M, Grabe HJ, Van der Auwera-Palitschka S, Kowald A, Palmer D, Rimbach G, Fuellen G, Barrantes I. Biomarkers of geroprotection and cardiovascular health: An overview of omics studies and established clinical biomarkers in the context of diet. Crit Rev Food Sci Nutr 2021; 63:2426-2446. [PMID: 34648415 DOI: 10.1080/10408398.2021.1975638] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The slowdown, inhibition, or reversal of age-related decline (as a composite of disease, dysfunction, and, ultimately, death) by diet or natural compounds can be defined as dietary geroprotection. While there is no single reliable biomarker to judge the effects of dietary geroprotection, biomarker signatures based on omics (epigenetics, gene expression, microbiome composition) are promising candidates. Recently, omic biomarkers started to supplement established clinical ones such as lipid profiles and inflammatory cytokines. In this review, we focus on human data. We first summarize the current take on genetic biomarkers based on epidemiological studies. However, most of the remaining biomarkers that we describe, whether omics-based or clinical, are related to intervention studies. Then, because of their promising potential in the context of dietary geroprotection, we focus on the effects of berry-based interventions, which up to now have been mostly described employing clinical markers. We provide an aggregation and tabulation of all the recent systematic reviews and meta-analyses that we could find related to this topic. Finally, we present evidence for the importance of the "nutribiography," that is, the influence that an individual's history of diet and natural compound consumption can have on the effects of dietary geroprotection.
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Affiliation(s)
- Riccardo Secci
- Junior Research Group Translational Bioinformatics, Institute for Biostatistics and Informatics in Medicine and Ageing Research, Rostock University Medical Center, Rostock, Germany
| | - Alexander Hartmann
- Institute for Clinical Chemistry and Laboratory Medicine, University Medical Center Rostock, University of Rostock, Rostock, Germany
| | - Michael Walter
- Institute for Clinical Chemistry and Laboratory Medicine, University Medical Center Rostock, University of Rostock, Rostock, Germany.,Institute of Laboratory Medicine, Clinical Chemistry, and Pathobiochemistry, Charite University Medical Center, Berlin, Germany
| | - Hans Jörgen Grabe
- Department of Psychiatry and Psychotherapy, University Medicine Greifswald, Greifswald, Germany.,German Centre for Neurodegenerative Diseases (DZNE), Site Rostock/Greifswald, Greifswald, Germany
| | - Sandra Van der Auwera-Palitschka
- Department of Psychiatry and Psychotherapy, University Medicine Greifswald, Greifswald, Germany.,German Centre for Neurodegenerative Diseases (DZNE), Site Rostock/Greifswald, Greifswald, Germany
| | - Axel Kowald
- Institute for Biostatistics and Informatics in Medicine and Aging Research, Rostock University Medical Center, Rostock, Germany
| | - Daniel Palmer
- Institute for Biostatistics and Informatics in Medicine and Aging Research, Rostock University Medical Center, Rostock, Germany
| | - Gerald Rimbach
- Institute of Human Nutrition and Food Science, University of Kiel, Kiel, Germany
| | - Georg Fuellen
- Institute for Biostatistics and Informatics in Medicine and Aging Research, Rostock University Medical Center, Rostock, Germany
| | - Israel Barrantes
- Junior Research Group Translational Bioinformatics, Institute for Biostatistics and Informatics in Medicine and Ageing Research, Rostock University Medical Center, Rostock, Germany
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Pendergrass HA, Johnson AL, Hotinger JA, May AE. Fluorescence Detection of Type III Secretion Using a Glu-CyFur Reporter System in Citrobacter rodentium. Microorganisms 2020; 8:microorganisms8121953. [PMID: 33316970 PMCID: PMC7764322 DOI: 10.3390/microorganisms8121953] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 12/02/2020] [Accepted: 12/06/2020] [Indexed: 12/21/2022] Open
Abstract
Enteropathogenic Escherichia coli (EPEC) is a major cause of infantile diarrhea worldwide. EPEC and the closely related murine model of EPEC infection, Citrobacter rodentium, utilize a type III secretion system (T3SS) to propagate the infection. Since the T3SS is not essential for the bacteria to survive or propagate, inhibiting the virulence factor with a therapeutic would treat the infection without causing harm to commensal bacteria. Studying inhibitors of the T3SS usually requires a BSL-2 laboratory designation and eukaryotic host cells while not indicating the mechanism of inhibition. We have designed a BSL-1 assay using the murine model C. rodentium that does not require mammalian cell culture. This CPG2-reporter assay allows for more rapid analysis of secretion efficiency than Western blotting and is sensitive enough to differentiate between partial and total inhibition of the T3SS. Here we present our method and the results of a small collection of compounds we have screened, including known T3SS inhibitors EGCG, regacin, and aurodox and related quorum sensing inhibitors tannic acid and ellagic acid. We have further characterized EGCG as a T3SS inhibitor and established its IC50 of 1.8 ± 0.4 μM. We also establish tannic acid as a potent inhibitor of the T3SS with an IC50 of 0.65 ± 0.09 μM.
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13
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Green Tea Catechins Induce Inhibition of PTP1B Phosphatase in Breast Cancer Cells with Potent Anti-Cancer Properties: In Vitro Assay, Molecular Docking, and Dynamics Studies. Antioxidants (Basel) 2020; 9:antiox9121208. [PMID: 33266280 PMCID: PMC7761018 DOI: 10.3390/antiox9121208] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 11/12/2020] [Accepted: 11/24/2020] [Indexed: 12/16/2022] Open
Abstract
The catechins derived from green tea possess antioxidant activity and may have a potentially anticancer effect. PTP1B is tyrosine phosphatase that is oxidative stress regulated and is involved with prooncogenic pathways leading to the formation of a.o. breast cancer. Here, we present the effect of selected green tea catechins on enzymatic activity of PTP1B phosphatase and viability of MCF-7 breast cancer cells. We showed also the computational analysis of the most effective catechin binding with a PTP1B molecule. We observed that epigallocatechin, epigallocatechin gallate, epicatechin, and epicatechin gallate may decrease enzymatic activity of PTP1B phosphatase and viability of MCF-7 cells. Conclusions: From the tested compounds, epigallocatechin and epigallocatechin gallate were the most effective inhibitors of the MCF-7 cell viability. Moreover, epigallocatechin was also the strongest inhibitor of PTP1B activity. Computational analysis allows us also to conclude that epigallocatechin is able to interact and bind to PTP1B. Our results suggest also the most predicted binding site to epigallocatechin binding to PTP1B.
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Protective Effects of Epigallocatechin Gallate (EGCG) on Endometrial, Breast, and Ovarian Cancers. Biomolecules 2020; 10:biom10111481. [PMID: 33113766 PMCID: PMC7694163 DOI: 10.3390/biom10111481] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 10/22/2020] [Accepted: 10/23/2020] [Indexed: 02/07/2023] Open
Abstract
Green tea and its major bioactive component, (-)-epigallocatechin gallate (EGCG), possess diverse biological properties, particularly antiproliferation, antimetastasis, and apoptosis induction. Many studies have widely investigated the anticancer and synergistic effects of EGCG due to the side effects of conventional cytotoxic agents. This review summarizes recent knowledge of underlying mechanisms of EGCG on protective roles for endometrial, breast, and ovarian cancers based on both in vitro and in vivo animal studies. EGCG has the ability to regulate many pathways, including the activation of nuclear factor erythroid 2-related factor 2 (Nrf2), inhibition of nuclear factor-κB (NF-κB), and protection against epithelial-mesenchymal transition (EMT). EGCG has also been found to interact with DNA methyltransferases (DNMTs) and histone deacetylases (HDACs), which affect epigenetic modifications. Finally, the action of EGCG may exert a suppressive effect on gynecological cancers and have beneficial effects on auxiliary therapies for known drugs. Thus, future clinical intervention studies with EGCG will be necessary to more and clear evidence for the benefit to these cancers.
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Li K, Teng C, Min Q. Advanced Nanovehicles-Enabled Delivery Systems of Epigallocatechin Gallate for Cancer Therapy. Front Chem 2020; 8:573297. [PMID: 33195062 PMCID: PMC7645157 DOI: 10.3389/fchem.2020.573297] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 08/24/2020] [Indexed: 12/25/2022] Open
Abstract
Epigallocatechin gallate (EGCG) is the most abundant polyphenolic constituent derived from green tea extract, which has demonstrated versatile bioactivities in combating cardiovascular diseases, neurodegenerative diseases, diabetes, and cancer. In light of its anticancer activity, increasing attention has been paid to developing potent strategies involving EGCG in cancer chemotherapy. However, the poor bioavailability and stability of EGCG limits its effectiveness and practicality in real biomedical applications. To overcome this drawback, nanotechnology-facilitated drug delivery systems have been introduced and intensively explored to enhance the bioavailability and therapeutic efficacy of EGCG in cancer treatments and interventions. This review briefly discusses the anticancer mechanisms of EGCG, and then summarizes recent advances in engineering nanovehicles for encapsulating and delivering EGCG toward cancer therapy. In addition, we also highlight successful integrations of EGCG delivery with other chemotherapies, gene therapies, and phototherapies in one nanostructured entity for a combination therapy of cancers. To conclude, the current challenges and future prospects of the nanovehicle-based transportation systems of EGCG for cancer therapy are also discussed.
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Affiliation(s)
- Kai Li
- Shenzhen Polytechnic, Institute of Marine Biomedicine, Shenzhen, China.,State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, China
| | - Chao Teng
- Shenzhen Polytechnic, Institute of Marine Biomedicine, Shenzhen, China
| | - Qianhao Min
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, China
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16
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The Role of Dysfunctional Adipose Tissue in Pancreatic Cancer: A Molecular Perspective. Cancers (Basel) 2020; 12:cancers12071849. [PMID: 32659999 PMCID: PMC7408631 DOI: 10.3390/cancers12071849] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 07/04/2020] [Accepted: 07/06/2020] [Indexed: 12/24/2022] Open
Abstract
Pancreatic cancer (PC) is a lethal malignancy with rising incidence and limited therapeutic options. Obesity is a well-established risk factor for PC development. Moreover, it negatively affects outcome in PC patients. Excessive fat accumulation in obese, over- and normal-weight individuals induces metabolic and inflammatory changes of adipose tissue microenvironment leading to a dysfunctional adipose “organ”. This may drive the association between abnormal fat accumulation and pancreatic cancer. In this review, we describe several molecular mechanisms that underpin this association at both local and systemic levels. We focus on the role of adipose tissue-derived circulating factors including adipokines, hormones and pro-inflammatory cytokines, as well as on the impact of the local adipose tissue in promoting PC. A discussion on potential therapeutic interventions, interfering with pro-tumorigenic effects of dysfunctional adipose tissue in PC, is included. Considering the raise of global obesity, research efforts to uncover the molecular basis of the relationship between pancreatic cancer and adipose tissue dysfunction may provide novel insights for the prevention of this deadly disease. In addition, these efforts may uncover novel targets for personalized interventional strategies aimed at improving the currently unsatisfactory PC therapeutic options.
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Ganesan K, Jayachandran M, Xu B. Diet-Derived Phytochemicals Targeting Colon Cancer Stem Cells and Microbiota in Colorectal Cancer. Int J Mol Sci 2020; 21:E3976. [PMID: 32492917 PMCID: PMC7312951 DOI: 10.3390/ijms21113976] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 05/28/2020] [Accepted: 05/30/2020] [Indexed: 02/06/2023] Open
Abstract
Colorectal cancer (CRC) is a fatal disease caused by the uncontrolled propagation and endurance of atypical colon cells. A person's lifestyle and eating pattern have significant impacts on the CRC in a positive and/or negative way. Diet-derived phytochemicals modulate the microbiome as well as targeting colon cancer stem cells (CSCs) that are found to offer significant protective effects against CRC, which were organized in an appropriate spot on the paper. All information on dietary phytochemicals, gut microbiome, CSCs, and their influence on CRC were accessed from the various databases and electronic search engines. The effectiveness of CRC can be reduced using various dietary phytochemicals or modulating microbiome that reduces or inverses the progression of a tumor as well as CSCs, which could be a promising and efficient way to reduce the burden of CRC. Phytochemicals with modulation of gut microbiome continue to be auspicious investigations in CRC through noticeable anti-tumorigenic effects and goals to CSCs, which provides new openings for cancer inhibition and treatment.
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Affiliation(s)
- Kumar Ganesan
- Food Science and Technology Programme, Beijing Normal University-Hong Kong Baptist University United International College, Zhuhai 519087, China; (K.G.); (M.J.)
- Laboratory and Clinical Research Institute for Pain, Department of Anesthesiology, The University of Hong Kong, Hong Kong SAR, China
| | - Muthukumaran Jayachandran
- Food Science and Technology Programme, Beijing Normal University-Hong Kong Baptist University United International College, Zhuhai 519087, China; (K.G.); (M.J.)
| | - Baojun Xu
- Food Science and Technology Programme, Beijing Normal University-Hong Kong Baptist University United International College, Zhuhai 519087, China; (K.G.); (M.J.)
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Hu L, Chen X, Qiu S, Yang J, Liu H, Zhang J, Zhang D, Wang F. Intra-Pancreatic Insulin Nourishes Cancer Cells: Do Insulin-Receptor Antagonists such as PGG and EGCG Play a Role? THE AMERICAN JOURNAL OF CHINESE MEDICINE 2020; 48:1005-1019. [PMID: 32468825 DOI: 10.1142/s0192415x20500482] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Harboring insulin-producing cells, the pancreas has more interstitial insulin than any other organ. In vitro, insulin activates both insulin receptor (IR) and insulin-like growth factor-1 receptor (IGF1R) to stimulate pancreatic cancer cells. Whether intra-pancreatic insulin nourishes pancreatic cancer cells in vivo remains uncertain. In the present studies, we transplanted human pancreatic cancer cells orthotopically in euglycemic athymic mice whose intra-pancreatic insulin was intact or was decreased following pretreatment with streptozotocin (STZ). In the next eight weeks, the tumor carriers were treated with one of the IR/IGF1R antagonists penta-O-galloyl-[Formula: see text]-D-glucose (PGG) and epigallocatechin gallate (EGCG) or treated with vehicle. When pancreatic tumors were examined, their fraction occupied with living cells was decreased following STZ pretreatment and/or IR/IGF1R antagonism. Using Western blot, we examined tumor grafts for IR/IGF1R expression and activity. We also determined proteins that were downstream to IR/IGF1R and responsible for signal transduction, glycolysis, angiogenesis, and apoptosis. We demonstrated that STZ-induced decrease in intra-pancreatic insulin reduced IR/IGF1R expression and activity, decreased the proteins that promoted cell survival, and increased the proteins that promoted apoptosis. These suggest that intra-pancreatic insulin supported local cancer cells. When tumor carriers were treated with PGG or EGCG, the results were similar to those seen following STZ pretreatment. Thus, the biggest changes in examined proteins were usually seen when STZ pretreatment and PGG/EGCG treatment concurred. This suggests that intra-pancreatic insulin normally combated pharmacologic effects of PGG and EGCG. In conclusion, intra-pancreatic insulin nourishes pancreatic cancer cells and helps the cells resist IR/IGF1R antagonism.
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Affiliation(s)
- Lijuan Hu
- The Laboratory of Acute Abdomen Disease Associated, Organ Injury and Repair, Nankai Hospital Affiliated to Nankai University, Tianjin 300100, P. R. China
| | - Xijuan Chen
- The Graduate School, Tianjin Medical University, Tianjin 300070, P. R. China
| | - Shuai Qiu
- The Graduate School, Tianjin Medical University, Tianjin 300070, P. R. China
| | - Jing Yang
- The Graduate School, Tianjin Medical University, Tianjin 300070, P. R. China
| | - Hongyi Liu
- The Laboratory of Acute Abdomen Disease Associated, Organ Injury and Repair, Nankai Hospital Affiliated to Nankai University, Tianjin 300100, P. R. China
| | - Jie Zhang
- The Laboratory of Acute Abdomen Disease Associated, Organ Injury and Repair, Nankai Hospital Affiliated to Nankai University, Tianjin 300100, P. R. China
| | - Dapeng Zhang
- The Laboratory of Acute Abdomen Disease Associated, Organ Injury and Repair, Nankai Hospital Affiliated to Nankai University, Tianjin 300100, P. R. China
| | - Feng Wang
- The Laboratory of Acute Abdomen Disease Associated, Organ Injury and Repair, Nankai Hospital Affiliated to Nankai University, Tianjin 300100, P. R. China
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Aggarwal V, Tuli HS, Tania M, Srivastava S, Ritzer EE, Pandey A, Aggarwal D, Barwal TS, Jain A, Kaur G, Sak K, Varol M, Bishayee A. Molecular mechanisms of action of epigallocatechin gallate in cancer: Recent trends and advancement. Semin Cancer Biol 2020; 80:256-275. [PMID: 32461153 DOI: 10.1016/j.semcancer.2020.05.011] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 05/08/2020] [Accepted: 05/17/2020] [Indexed: 12/22/2022]
Abstract
Epigallocatechin gallate (EGCG), also known as epigallocatechin-3-gallate, is an ester of epigallocatechin and gallic acid. EGCG, abundantly found in tea, is a polyphenolic flavonoid that has the potential to affect human health and disease. EGCG interacts with various recognized cellular targets and inhibits cancer cell proliferation by inducing apoptosis and cell cycle arrest. In addition, scientific evidence has illustrated the promising role of EGCG in inhibiting tumor cell metastasis and angiogenesis. It has also been found that EGCG may reverse drug resistance of cancer cells and could be a promising candidate for synergism studies. The prospective importance of EGCG in cancer treatment is owed to its natural origin, safety, and low cost which presents it as an attractive target for further development of novel cancer therapeutics. A major challenge with EGCG is its low bioavailability which is being targeted for improvement by encapsulating EGCG in nano-sized vehicles for further delivery. However, there are major limitations of the studies on EGCG, including study design, experimental bias, and inconsistent results and reproducibility among different study cohorts. Additionally, it is important to identify specific EGCG pharmacological targets in the tumor-specific signaling pathways for development of novel combined therapeutic treatments with EGCG. The present review highlights the ongoing development to identify cellular and molecular targets of EGCG in cancer. Furthermore, the role of nanotechnology-mediated EGCG combinations and delivery systems will also be discussed.
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Affiliation(s)
- Vaishali Aggarwal
- Department of Histopathology, Post Graduate Institute of Medical Education and Research, Chandigarh 160 012, Punjab, India
| | - Hardeep Singh Tuli
- Department of Biotechnology, Maharishi Markandeshwar (Deemed to be University), Mullana-Ambala 133 207, Haryana, India.
| | - Mousumi Tania
- Division of Molecular Cancer, Red Green Research Center, Dhaka 1205, Bangladesh
| | - Saumya Srivastava
- Department of Biotechnology, Motilal Nehru National Institute of Technology Allahabad, Prayagraj 211 004, Uttar Pradesh, India
| | - Erin E Ritzer
- Lake Erie College of Osteopathic Medicine, Bradenton 34211, FL, USA
| | - Anjana Pandey
- Department of Biotechnology, Motilal Nehru National Institute of Technology Allahabad, Prayagraj 211 004, Uttar Pradesh, India
| | - Diwakar Aggarwal
- Department of Biotechnology, Maharishi Markandeshwar (Deemed to be University), Mullana-Ambala 133 207, Haryana, India
| | - Tushar Singh Barwal
- Department of Zoology, Central University of Punjab, Bathinda 151 001, Punjab, India
| | - Aklank Jain
- Department of Zoology, Central University of Punjab, Bathinda 151 001, Punjab, India
| | - Ginpreet Kaur
- Department of Pharmacology, Shobhaben Pratapbhai Patel School of Pharmacy and Technology Management, Mumbai 400 056, Maharastra, India
| | | | - Mehmet Varol
- Department of Molecular Biology and Genetics, Faculty of Science, Mugla Sitki Kocman University, Muğla TR48000, Turkey
| | - Anupam Bishayee
- Lake Erie College of Osteopathic Medicine, Bradenton 34211, FL, USA.
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20
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Reiterer M, Milton SL. Induction of foxo3a protects turtle neurons against oxidative stress. Comp Biochem Physiol A Mol Integr Physiol 2020; 243:110671. [DOI: 10.1016/j.cbpa.2020.110671] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Revised: 01/30/2020] [Accepted: 02/02/2020] [Indexed: 12/17/2022]
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21
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Mirza-Aghazadeh-Attari M, Ekrami EM, Aghdas SAM, Mihanfar A, Hallaj S, Yousefi B, Safa A, Majidinia M. Targeting PI3K/Akt/mTOR signaling pathway by polyphenols: Implication for cancer therapy. Life Sci 2020; 255:117481. [PMID: 32135183 DOI: 10.1016/j.lfs.2020.117481] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Revised: 02/20/2020] [Accepted: 02/28/2020] [Indexed: 02/07/2023]
Abstract
Cancer is one of the biggest challenges facing medicine and its cure is regarded to be the Holy Grail of medicine. Therapy in cancer is consisted as various artificial cytotoxic agents and radiotherapy, and recently immunotherapy. Recently much attention has been directed to the use of natural occurring agents in cancer therapy. One of the main group of agents utilized in this regard is polyphenols which are found abundantly in berries, fruits and vegetables. Polyphenols show to exert direct and indirect effects in progression of cancer, angiogenesis, proliferation and enhancing resistance to treatment. One of the cellular pathways commonly affected by polyphenols is PI3K/Akt/mTOR pathway, which has far ranging effects on multiple key aspects of cellular growth, metabolism and death. In this review article, evidence regarding the biology of polyphenols in cancer via PI3K/Akt/mTOR pathway is discussed and their application on cancer pathophysiology in various types of human malignancies is shown.
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Affiliation(s)
- Mohammad Mirza-Aghazadeh-Attari
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran; Aging Research Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Elyad Mohammadi Ekrami
- Department of Anesthesiology & Critical Care Medicine, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Seyyed Ali Mousavi Aghdas
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran; Aging Research Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ainaz Mihanfar
- Department of Biochemistry, Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Shahin Hallaj
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran; Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Bahman Yousefi
- Molecular Medicine Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Amin Safa
- Institute of Research and Development, Duy Tan University, Da Nang, Viet Nam; Department of Immunology, Ophthalmology and ENT, School of Medicine, Complutense University, Madrid, Spain
| | - Maryam Majidinia
- Solid Tumor Research Center, Urmia University of Medical Sciences, Urmia, Iran.
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22
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Marcu LG. Cancer stem cells as therapeutic targets of pancreatic cancer. Fundam Clin Pharmacol 2020; 34:200-201. [PMID: 31944386 DOI: 10.1111/fcp.12536] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Loredana G Marcu
- Faculty of Informatics & Science, University of Oradea, Oradea, 410087, Romania.,School of Health Sciences, University of South Australia, Adelaide, SA, 5001, Australia
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23
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Li K, Teng C, Min Q. Advanced Nanovehicles-Enabled Delivery Systems of Epigallocatechin Gallate for Cancer Therapy. Front Chem 2020. [PMID: 33195062 DOI: 10.3389/fchem.2020.573297/bibtex] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/19/2023] Open
Abstract
Epigallocatechin gallate (EGCG) is the most abundant polyphenolic constituent derived from green tea extract, which has demonstrated versatile bioactivities in combating cardiovascular diseases, neurodegenerative diseases, diabetes, and cancer. In light of its anticancer activity, increasing attention has been paid to developing potent strategies involving EGCG in cancer chemotherapy. However, the poor bioavailability and stability of EGCG limits its effectiveness and practicality in real biomedical applications. To overcome this drawback, nanotechnology-facilitated drug delivery systems have been introduced and intensively explored to enhance the bioavailability and therapeutic efficacy of EGCG in cancer treatments and interventions. This review briefly discusses the anticancer mechanisms of EGCG, and then summarizes recent advances in engineering nanovehicles for encapsulating and delivering EGCG toward cancer therapy. In addition, we also highlight successful integrations of EGCG delivery with other chemotherapies, gene therapies, and phototherapies in one nanostructured entity for a combination therapy of cancers. To conclude, the current challenges and future prospects of the nanovehicle-based transportation systems of EGCG for cancer therapy are also discussed.
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Affiliation(s)
- Kai Li
- Shenzhen Polytechnic, Institute of Marine Biomedicine, Shenzhen, China
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, China
| | - Chao Teng
- Shenzhen Polytechnic, Institute of Marine Biomedicine, Shenzhen, China
| | - Qianhao Min
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, China
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24
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Induction of Endoplasmic Reticulum Stress Pathway by Green Tea Epigallocatechin-3-Gallate (EGCG) in Colorectal Cancer Cells: Activation of PERK/p-eIF2 α/ATF4 and IRE1 α. BIOMED RESEARCH INTERNATIONAL 2019; 2019:3480569. [PMID: 31930117 PMCID: PMC6942794 DOI: 10.1155/2019/3480569] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Accepted: 10/31/2019] [Indexed: 01/01/2023]
Abstract
Epigallocatechin-3-gallate (EGCG) is the most abundant bioactive polyphenolic compound among the green tea constituents and has been identified as a potential anticancer agent in colorectal cancer (CRC) studies. This study was aimed to determine the mechanism of actions of EGCG when targeting the endoplasmic reticulum (ER) stress pathway in CRC. The MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide) assay was performed on HT-29 cell line and normal cell line (3T3) to determine the EGCG toxicity. Next, western blot was done to observe the expression of the related proteins for the ER stress pathway. The Caspase 3/7 assay was performed to determine the apoptosis induced by EGCG. The results demonstrated that EGCG treatment was toxic to the HT-29 cell line. EGCG induced ER stress in HT-29 by upregulating immunoglobulin-binding (BiP), PKR-like endoplasmic reticulum kinase (PERK), phosphorylation of eukaryotic initiation factor 2 alpha subunit (eIF2α), activating transcription 4 (ATF4), and inositol-requiring kinase 1 alpha (IRE1α). Apoptosis was induced in HT-29 cells after the EGCG treatment, as shown by the Caspase 3/7 activity. This study indicates that green tea EGCG has the potential to inhibit colorectal cancer cells through the induction of ER stress.
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Zhang W, Zhang W, Sun L, Xiang L, Lai X, Li Q, Sun S. The effects and mechanisms of epigallocatechin-3-gallate on reversing multidrug resistance in cancer. Trends Food Sci Technol 2019. [DOI: 10.1016/j.tifs.2019.09.017] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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26
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Zhou B, Wu D, Liu H, Du LT, Wang YS, Xu JW, Qiu FB, Hu SY, Zhan HX. Obesity and pancreatic cancer: An update of epidemiological evidence and molecular mechanisms. Pancreatology 2019; 19:941-950. [PMID: 31447281 DOI: 10.1016/j.pan.2019.08.008] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2019] [Revised: 07/04/2019] [Accepted: 08/16/2019] [Indexed: 12/11/2022]
Abstract
Despite advances in therapy and achievements in translational research, pancreatic cancer (PC) remains an invariably fatal malignancy. Risk factors that affect the incidence of PC include diabetes, smoking, obesity, chronic pancreatitis, and diet. The growing worldwide obesity epidemic is associated with an increased risk of the most common cancers, including PC. Chronic inflammation, hormonal effects, circulating adipokines, and adipocyte-mediated inflammatory and immunosuppressive microenvironment are involved in the association of obesity with PC. Herein, we systematically review the epidemiology of PC and the biological mechanisms that may account for this association. Included in this review is a discussion of adipokine-mediated inflammation, lipid metabolism, and the interactions of adipocytes with cancer cells. We consider the influence of bariatric surgery on the risk of PC risk as well as potential molecular targets of therapy. Our review leads us to conclude that targeting adipose tissue to achieve weight loss may represent a new therapeutic strategy for preventing and treating PC.
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Affiliation(s)
- Bin Zhou
- Department of Hepatobiliary and Pancreatic Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, 266003, China; Department of Retroperitoneal Tumor Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, 266003, China
| | - Dong Wu
- Department of General Surgery, Qilu Hospital, Shandong University, Jinan, Shandong Province, 250012, China
| | - Han Liu
- Department of General Surgery, Qilu Hospital, Shandong University, Jinan, Shandong Province, 250012, China
| | - Lu-Tao Du
- Department of Clinical Laboratory, The Second Hospital of Shandong University, Jinan, Shandong Province, 250033, China; Tumor Marker Detection Engineering Laboratory of Shandong Province, Jinan, Shandong Province, 250033, China
| | - Yun-Shan Wang
- Department of Clinical Laboratory, The Second Hospital of Shandong University, Jinan, Shandong Province, 250033, China; Tumor Marker Detection Engineering Laboratory of Shandong Province, Jinan, Shandong Province, 250033, China
| | - Jian-Wei Xu
- Department of General Surgery, Qilu Hospital, Shandong University, Jinan, Shandong Province, 250012, China
| | - Fa-Bo Qiu
- Department of Hepatobiliary and Pancreatic Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, 266003, China; Department of Retroperitoneal Tumor Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, 266003, China
| | - San-Yuan Hu
- Department of General Surgery, Qilu Hospital, Shandong University, Jinan, Shandong Province, 250012, China
| | - Han-Xiang Zhan
- Department of General Surgery, Qilu Hospital, Shandong University, Jinan, Shandong Province, 250012, China.
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27
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Silva AM, Martins-Gomes C, Fangueiro JF, Andreani T, Souto EB. Comparison of antiproliferative effect of epigallocatechin gallate when loaded into cationic solid lipid nanoparticles against different cell lines. Pharm Dev Technol 2019; 24:1243-1249. [PMID: 31437118 DOI: 10.1080/10837450.2019.1658774] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Several therapeutic properties have been attributed to epigallocatechin gallate (EGCG), a phytopharmaceutical polyphenol with antioxidant and antiproliferative activity. EGCG is, however, very prone to oxidation in aqueous solutions which changes its bioactive properties. Its loading in nanoparticles has been proposed to reduce its degradation while increasing its in vivo efficacy. The aim of this study was to compare the antiproliferative effect of EGCG before and after its loading in solid lipid nanoparticles (SLNs), against five different cell lines (Caco-2, HepG2, MCF-7, SV-80 and Y-79). EGCG produced concentration- and time-dependent antiproliferative effect, with efficacy dependent on the cell line. The order of potency was: MCF-7>SV-80>HepG2>Y-79>Caco-2, for 24 h exposure (MCF-7 IC50=58.60 ± 3.29 µg/mL; Caco-2 IC50>500.00 µg/mL). To the best of our knowledge this is the first study reporting EGCG antiproliferative effect in SV-80 and Y-79 cells. DDAB-SLN physicochemical properties (size ∼134 nm; PI∼0.179; ZP ∼+28mV) were only slightly modified with EGCG loading (EGCG-DDAB-SLN: ∼144 nm; PI∼0.160; ZP ∼+26mV). EGCG loading in SLN, only slightly increases the EGCG antiproliferative effect in MCF-7 and SV-80 cells. SLN exhibited intrinsic toxicity, attributed to the surfactant used in its production. From the obtained results, the biocompatibility of blank SLN must be also considered when testing the efficacy of loaded phytopharmaceutics.
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Affiliation(s)
- Amélia M Silva
- Department of Biology and Environment, University of Trás-os Montes e Alto Douro (UTAD) , Vila Real , Portugal.,Centre for Research and Technology of Agro-Environmental and Biological Sciences (CITAB-UTAD) , Vila Real , Portugal
| | - Carlos Martins-Gomes
- Department of Biology and Environment, University of Trás-os Montes e Alto Douro (UTAD) , Vila Real , Portugal.,Centre for Research and Technology of Agro-Environmental and Biological Sciences (CITAB-UTAD) , Vila Real , Portugal
| | - Joana F Fangueiro
- Centre for Research and Technology of Agro-Environmental and Biological Sciences (CITAB-UTAD) , Vila Real , Portugal.,Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Coimbra (FFUC) , Coimbra , Portugal
| | - Tatiana Andreani
- Department of Biology and Environment, University of Trás-os Montes e Alto Douro (UTAD) , Vila Real , Portugal.,Centre for Research and Technology of Agro-Environmental and Biological Sciences (CITAB-UTAD) , Vila Real , Portugal.,Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto (FCUP) , Porto , Portugal
| | - Eliana B Souto
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Coimbra (FFUC) , Coimbra , Portugal.,CEB - Centre of Biological Engineering, University of Minho , Braga , Portugal
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In Silico Investigation of the Anti-Tumor Mechanisms of Epigallocatechin-3-Gallate. Molecules 2019; 24:molecules24071445. [PMID: 30979098 PMCID: PMC6480119 DOI: 10.3390/molecules24071445] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 04/06/2019] [Accepted: 04/09/2019] [Indexed: 12/15/2022] Open
Abstract
The EGCG, an important component of polyphenol in green tea, is well known due to its numerous health benefits. We employed the reverse docking method for the identification of the putative targets of EGCG in the anti-tumor target protein database and these targets were further uploaded to public databases in order to understand the underlying pharmacological mechanisms and search for novel EGCG-associated targets. Similarly, the pharmacological linkage between tumor-related proteins and EGCG was manually constructed in order to provide greater insight into the molecular mechanisms through a systematic integration with applicable bioinformatics. The results indicated that the anti-tumor mechanisms of EGCG may involve 12 signaling transduction pathways and 33 vital target proteins. Moreover, we also discovered four novel putative target proteins of EGCG, including IKBKB, KRAS, WEE1 and NTRK1, which are significantly related to tumorigenesis. In conclusion, this work may provide a useful perspective that will improve our understanding of the pharmacological mechanism of EGCG and identify novel potential therapeutic targets.
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Ma Y, Yu W, Shrivastava A, Srivastava RK, Shankar S. Inhibition of pancreatic cancer stem cell characteristics by α-Mangostin: Molecular mechanisms involving Sonic hedgehog and Nanog. J Cell Mol Med 2019; 23:2719-2730. [PMID: 30712329 PMCID: PMC6433724 DOI: 10.1111/jcmm.14178] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2018] [Revised: 12/31/2018] [Accepted: 01/02/2019] [Indexed: 12/21/2022] Open
Abstract
The current investigation was intended to elucidate the molecular mechanism of α‐Mangostin in the regulation of pancreatic cancer stem cell (CSC) characteristics. Here, we demonstrate that α‐Mangostin inhibited cell proliferation in pancreatic CSCs and cancer cell lines while it showed no effect on human pancreatic normal ductal epithelial cells. Also, α‐Mangostin inhibited colony formation and induced apoptosis in these cells. Further, α‐Mangostin inhibited the self‐renewal capacity of CSCs isolated from human primary tumours and KrasG12D mice. Furthermore, α‐Mangostin inhibited the invasive and metastatic ability of pancreatic CSCs by suppressing the epithelial‐to‐mesenchymal transition (EMT) via up‐regulation of E‐cadherin and down‐regulation of mesenchymal phenotype by inhibiting N‐cadherin, Snail and Slug expression. Interestingly, the pluripotency maintaining factors and CSC markers were inhibited by α‐Mangostin thus suggesting that α‐Mangostin can target CSCs to inhibit pancreatic cancer effectively. Gli signalling plays a crucial role in the self‐renewal and pluripotency of CSCs. α‐Mangostin inhibited the Gli transcription and the expression of Gli target genes (Nanog, Oct4, c‐Myc, Sox‐2 and KLF4) in CSCs. Using ChIP assay, we demonstrated that Nanog could directly bind to promoters of Cdk2, Cdk6, FGF4, c‐Myc and α‐Mangostin inhibited Nanog binding to these promoters. Conversely, the inhibitory effects of the α‐Mangostin on CSC proliferation and Gli or Nanog transcription and their targets were abrogated by either enforced activation of sonic hedgehog (Shh) or by the overexpression of Nanog. Taken together, our studies suggest that α‐Mangostin may act as Gli inhibitor and establishes the pre‐clinical significance of α‐Mangostin for the prevention and treatment of pancreatic cancer.
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Affiliation(s)
- Yiming Ma
- Kansas City VA Medical Center, Kansas City, Missouri
| | - Wei Yu
- Kansas City VA Medical Center, Kansas City, Missouri
| | - Anju Shrivastava
- Department of Oncology, St. Joseph's Hospital and Medical Center, Phoenix, Arizona
| | - Rakesh K Srivastava
- Kansas City VA Medical Center, Kansas City, Missouri.,Department of Pharmaceutical Sciences, University of Missouri-Kansas City, Kansas City, Missouri
| | - Sharmila Shankar
- Kansas City VA Medical Center, Kansas City, Missouri.,Department of Pathology, School of Medicine, University of Missouri-Kansas City, Kansas City, Missouri
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30
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Li J, Yang R, Dong Y, Chen M, Wang Y, Wang G. Knockdown of FOXO3a induces epithelial-mesenchymal transition and promotes metastasis of pancreatic ductal adenocarcinoma by activation of the β-catenin/TCF4 pathway through SPRY2. J Exp Clin Cancer Res 2019; 38:38. [PMID: 30691517 PMCID: PMC6350320 DOI: 10.1186/s13046-019-1046-x] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Accepted: 01/16/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Early invasion and metastasis are responsible for the dismal prognosis of pancreatic ductal adenocarcinoma (PDAC), and epithelial-to-mesenchymal transition (EMT) is recognized as a crucial biological progress in driving tumor invasion and metastasis. The transcription factor FOXO3a is inactivated in various types of solid cancers and the loss of FOXO3a is associated with EMT and tumor metastasis. In this study, we sought to explore whether SPRY2, a regulator of receptor tyrosine kinase (RTK) signaling, is involved in FOXO3a-mediated EMT and metastasis in PDAC. METHODS Immunohistochemistry was performed in 130 paired PDAC tissues and paracarcinomatous pancreatic tissues. Cell proliferation and apoptosis were assessed by cell counting kit and flow cytometry, while cell migration and invasion were evaluated with wound healing and transwell assays. The changes in mRNA and protein levels were estimated by qRT-PCR and western blot. BALB/c nude mice xenograft model was established to evaluate tumorigenesis and metastasis in vivo. RESULTS FOXO3a expression was remarkably reduced in PDAC tissues, and correlated with metastasis-associated clinicopathologic characteristics and poor prognosis in patients with PDAC. In addition to the promotion of proliferation and suppression of apoptosis, knockdown of FOXO3a or SPRY2 induced EMT and promoted the migration and invasion of PDAC cells via activation of the β-catenin/TCF4 pathway. Moreover, silencing of SPRY2 reversed the suppressor effects induced by FOXO3a overexpression on EMT-associated migration and invasion of PDAC cells, while blockade of β-catenin reversed the effects of SPRY2 loss. FOXO3a knockdown decreased SPRY2 protein stability, whereas SPRY2 knockdown enhanced β-catenin protein stability. In vivo, FOXO3a knockdown promoted the tumorigenic ability and metastasis of PDAC cells. CONCLUSIONS Our study suggests that knockdown of FOXO3a induces EMT and promotes metastasis of PDAC by activation of the β-catenin/TCF4 pathway through SPRY2. Thus, FOXO3a may represent a candidate therapeutic target in PDAC.
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Affiliation(s)
- Jun Li
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Dadao, Wuhan, 430030, People's Republic of China
- Department of Pathology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China
| | - Rumeng Yang
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Dadao, Wuhan, 430030, People's Republic of China
- Department of Pathology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China
| | - Yuting Dong
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Dadao, Wuhan, 430030, People's Republic of China
- Department of Pathology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China
| | - Manyao Chen
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Dadao, Wuhan, 430030, People's Republic of China
- Department of Pathology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China
| | - Yu Wang
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Dadao, Wuhan, 430030, People's Republic of China.
| | - Guoping Wang
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Dadao, Wuhan, 430030, People's Republic of China.
- Department of Pathology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China.
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31
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Molecular Targets of Epigallocatechin-Gallate (EGCG): A Special Focus on Signal Transduction and Cancer. Nutrients 2018; 10:nu10121936. [PMID: 30563268 PMCID: PMC6315581 DOI: 10.3390/nu10121936] [Citation(s) in RCA: 159] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 11/30/2018] [Accepted: 12/04/2018] [Indexed: 12/15/2022] Open
Abstract
Green tea is a beverage that is widely consumed worldwide and is believed to exert effects on different diseases, including cancer. The major components of green tea are catechins, a family of polyphenols. Among them, epigallocatechin-gallate (EGCG) is the most abundant and biologically active. EGCG is widely studied for its anti-cancer properties. However, the cellular and molecular mechanisms explaining its action have not been completely understood, yet. EGCG is effective in vivo at micromolar concentrations, suggesting that its action is mediated by interaction with specific targets that are involved in the regulation of crucial steps of cell proliferation, survival, and metastatic spread. Recently, several proteins have been identified as EGCG direct interactors. Among them, the trans-membrane receptor 67LR has been identified as a high affinity EGCG receptor. 67LR is a master regulator of many pathways affecting cell proliferation or apoptosis, also regulating cancer stem cells (CSCs) activity. EGCG was also found to be interacting directly with Pin1, TGFR-II, and metalloproteinases (MMPs) (mainly MMP2 and MMP9), which respectively regulate EGCG-dependent inhibition of NF-kB, epithelial-mesenchimal transaction (EMT) and cellular invasion. EGCG interacts with DNA methyltransferases (DNMTs) and histone deacetylases (HDACs), which modulates epigenetic changes. The bulk of this novel knowledge provides information about the mechanisms of action of EGCG and may explain its onco-suppressive function. The identification of crucial signalling pathways that are related to cancer onset and progression whose master regulators interacts with EGCG may disclose intriguing pharmacological targets, and eventually lead to novel combined treatments in which EGCG acts synergistically with known drugs.
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Targeting ncRNAs by plant secondary metabolites: The ncRNAs game in the balance towards malignancy inhibition. Biotechnol Adv 2018; 36:1779-1799. [DOI: 10.1016/j.biotechadv.2017.11.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Revised: 10/31/2017] [Accepted: 11/06/2017] [Indexed: 02/06/2023]
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Lohse I, Wildermuth E, Brothers SP. Naturally occurring compounds as pancreatic cancer therapeutics. Oncotarget 2018; 9:35448-35457. [PMID: 30459936 PMCID: PMC6226042 DOI: 10.18632/oncotarget.26234] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2018] [Accepted: 10/06/2018] [Indexed: 02/06/2023] Open
Abstract
Naturally occurring small molecule compounds have long been in the spotlight of pancreatic cancer research as potential therapeutics to prevent cancer progression and sensitize chemoresistant tumors. The hope is that terminal pancreatic cancer patients receiving aggressive chemotherapy can benefit from an increase in treatment efficacy without adding further toxicity by way of utilizing natural compounds. While preclinical studies on a number of natural compounds, such as resveratrol, curcumin, rapalogs and cannabinoids, show promising preclinical results, little has translated into clinical practice, though a number of other compounds hold clinical potential. Nevertheless, recent advances in compound formulation may increase the clinical utility of these compounds.
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Affiliation(s)
- Ines Lohse
- Department of Psychiatry and Behavioral Sciences, Center for Therapeutic Innovation University of Miami Miller School of Medicine, University of Miami, Miami, FL, USA.,Molecular Therapeutics Shared Resource, Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Erin Wildermuth
- Department of Psychiatry and Behavioral Sciences, Center for Therapeutic Innovation University of Miami Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Shaun P Brothers
- Department of Psychiatry and Behavioral Sciences, Center for Therapeutic Innovation University of Miami Miller School of Medicine, University of Miami, Miami, FL, USA.,Molecular Therapeutics Shared Resource, Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL, USA
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34
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Matkar PN, Jong ED, Ariyagunarajah R, Prud'homme GJ, Singh KK, Leong-Poi H. Jack of many trades: Multifaceted role of neuropilins in pancreatic cancer. Cancer Med 2018; 7:5036-5046. [PMID: 30216699 PMCID: PMC6198212 DOI: 10.1002/cam4.1715] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 06/04/2018] [Accepted: 07/13/2018] [Indexed: 12/11/2022] Open
Abstract
Neuropilins (NRPs) have been described as receptors for class 3 semaphorins and coreceptors for a plethora of ligands, such as members of the vascular endothelial growth factor (VEGF) family of angiogenic cytokines and transforming growth factor (TGF). Initial studies using genetic models have indicated that neuropilin-1 (NRP-1) is essential for axonal guidance during neuronal and cardiovascular development, regulated via semaphorins and VEGF, respectively, whereas the other homolog of neuropilin, NRP-2, has been shown to play a more specific role in neuronal patterning and lymphangiogenesis. Pancreatic ductal adenocarcinoma (PDAC) remains a significant cause of cancer mortality with the lowest five-year survival rate compared to other types of cancer. Recent findings have indicated that NRPs are abundantly expressed in pancreatic cancer cell lines and pancreatic tumor tissues, where they mediate several essential cancer-initiating and cancer-promoting functional responses through their unique ability to bind multiple ligands. Specifically, NRPs have been implicated in numerous biological processes such as cancer cell proliferation, survival, invasion, and tumor growth. More recently, several other protumorigenic roles mediated by NRPs have emerged, advocating NRPs as ideal therapeutic targets against PDAC.
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Affiliation(s)
- Pratiek N Matkar
- Division of Cardiology, Keenan Research Centre for Biomedical Science, Li Ka Shing Knowledge Institute of St. Michael's Hospital, Toronto, Ontario, Canada.,Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada
| | - Eric D Jong
- Department of Biology, University of New Brunswick, Fredericton, New Brunswick, Canada
| | | | - Gerald J Prud'homme
- Laboratory Medicine, Keenan Research Centre for Biomedical Science, Li Ka Shing Knowledge Institute of St. Michael's Hospital, Toronto, Ontario, Canada.,Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
| | - Krishna K Singh
- Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada.,Vascular Surgery, Keenan Research Centre for Biomedical Science, Li Ka Shing Knowledge Institute of St. Michael's Hospital, Toronto, Ontario, Canada.,Department of Pharmacology and Toxicology, University of Toronto, Toronto, Ontario, Canada.,Department of Surgery, University of Toronto, Toronto, Ontario, Canada.,Department of Medical Biophysics, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ontario, Canada
| | - Howard Leong-Poi
- Division of Cardiology, Keenan Research Centre for Biomedical Science, Li Ka Shing Knowledge Institute of St. Michael's Hospital, Toronto, Ontario, Canada.,Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada
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35
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Liu Y, Ao X, Ding W, Ponnusamy M, Wu W, Hao X, Yu W, Wang Y, Li P, Wang J. Critical role of FOXO3a in carcinogenesis. Mol Cancer 2018; 17:104. [PMID: 30045773 PMCID: PMC6060507 DOI: 10.1186/s12943-018-0856-3] [Citation(s) in RCA: 277] [Impact Index Per Article: 46.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Accepted: 07/12/2018] [Indexed: 12/13/2022] Open
Abstract
FOXO3a is a member of the FOXO subfamily of forkhead transcription factors that mediate a variety of cellular processes including apoptosis, proliferation, cell cycle progression, DNA damage and tumorigenesis. It also responds to several cellular stresses such as UV irradiation and oxidative stress. The function of FOXO3a is regulated by a complex network of processes, including post-transcriptional suppression by microRNAs (miRNAs), post-translational modifications (PTMs) and protein–protein interactions. FOXO3a is widely implicated in a variety of diseases, particularly in malignancy of breast, liver, colon, prostate, bladder, and nasopharyngeal cancers. Emerging evidences indicate that FOXO3a acts as a tumor suppressor in cancer. FOXO3a is frequently inactivated in cancer cell lines by mutation of the FOXO3a gene or cytoplasmic sequestration of FOXO3a protein. And its inactivation is associated with the initiation and progression of cancer. In experimental studies, overexpression of FOXO3a inhibits the proliferation, tumorigenic potential, and invasiveness of cancer cells, while silencing of FOXO3a results in marked attenuation in protection against tumorigenesis. The role of FOXO3a in both normal physiology as well as in cancer development have presented a great challenge to formulating an effective therapeutic strategy for cancer. In this review, we summarize the recent findings and overview of the current understanding of the influence of FOXO3a in cancer development and progression.
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Affiliation(s)
- Ying Liu
- Institute for Translational Medicine, College of Medicine, Qingdao University, Qingdao, 266021, China
| | - Xiang Ao
- Institute for Translational Medicine, College of Medicine, Qingdao University, Qingdao, 266021, China
| | - Wei Ding
- Department of comprehensive internal medicine, Affiliated Hospital, Qingdao University, Qingdao, 266003, China
| | - Murugavel Ponnusamy
- Institute for Translational Medicine, College of Medicine, Qingdao University, Qingdao, 266021, China
| | - Wei Wu
- Institute for Translational Medicine, College of Medicine, Qingdao University, Qingdao, 266021, China
| | - Xiaodan Hao
- Institute for Translational Medicine, College of Medicine, Qingdao University, Qingdao, 266021, China
| | - Wanpeng Yu
- Institute for Translational Medicine, College of Medicine, Qingdao University, Qingdao, 266021, China
| | - Yifei Wang
- Institute for Translational Medicine, College of Medicine, Qingdao University, Qingdao, 266021, China
| | - Peifeng Li
- Institute for Translational Medicine, College of Medicine, Qingdao University, Qingdao, 266021, China.
| | - Jianxun Wang
- Institute for Translational Medicine, College of Medicine, Qingdao University, Qingdao, 266021, China.
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36
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The critical role of epigallocatechin gallate in regulating mitochondrial metabolism. Future Med Chem 2018. [DOI: 10.4155/fmc-2017-0204
expr 946749968 + 822201775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023] Open
Abstract
Epigallocatechin gallate (EGCG), one of polyphenols isolated from green tea, exhibits biology-benefiting effects with minimum severe adverse. EGCG is known to be a mitochondrion-targeting medicinal agent, regulating mitochondrial metabolism, including mitochondrial biogenesis, mitochondrial bioenergetics, and mitochondria-mediated cell cycle and apoptosis. EGCG might exhibit either antioxidative activity to prevent against oxidative stress or pro-oxidative activity to counteract cancer cells, which depends on the cellular stress situations, cell types and the concentration of EGCG. Recent research has gained positive and promising data. This review will discuss the interaction between EGCG and mitochondrion.
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37
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The critical role of epigallocatechin gallate in regulating mitochondrial metabolism. Future Med Chem 2018; 10:795-809. [DOI: 10.4155/fmc-2017-0204] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Epigallocatechin gallate (EGCG), one of polyphenols isolated from green tea, exhibits biology-benefiting effects with minimum severe adverse. EGCG is known to be a mitochondrion-targeting medicinal agent, regulating mitochondrial metabolism, including mitochondrial biogenesis, mitochondrial bioenergetics, and mitochondria-mediated cell cycle and apoptosis. EGCG might exhibit either antioxidative activity to prevent against oxidative stress or pro-oxidative activity to counteract cancer cells, which depends on the cellular stress situations, cell types and the concentration of EGCG. Recent research has gained positive and promising data. This review will discuss the interaction between EGCG and mitochondrion.
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38
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Le CT, Leenders WPJ, Molenaar RJ, van Noorden CJF. Effects of the Green Tea Polyphenol Epigallocatechin-3-Gallate on Glioma: A Critical Evaluation of the Literature. Nutr Cancer 2018; 70:317-333. [PMID: 29570984 DOI: 10.1080/01635581.2018.1446090] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
The review discusses the effects of Epigallocatechin-3-gallate Gallate (EGCG) on glioma as a basis for future research on clinical application of EGCG. Epidemiological studies on the effects of green tea or EGCG on the risk of glioma is inconclusive due to the limited number of studies, the inclusion of all tea types in these studies, and the focus on caffeine rather than EGCG. In vivo experiments using EGCG monotherapy are inconclusive. Nevertheless, EGCG induces cell death, prevents cellular proliferation, and limits invasion in multiple glioma cell lines. Furthermore, EGCG enhances the efficacy of anti-glioma therapies, including irradiation, temozolomide, carmustine, cisplatin, tamoxifen, and TNF-related apoptosis-inducing ligand, but reduces the effect of bortezomib. Pro-drugs, co-treatment, and encapsulation are being investigated to enhance clinical applicability of EGCG. Mechanisms of actions of EGCG have been partly elucidated. EGCG has both anti-oxidant and oxidant properties. EGCG inhibits pro-survival proteins, such as telomerase, survivin, GRP78, PEA15, and P-gp. EGCG inhibits signaling of PDGFR, IGF-1R, and 67LR. EGCG reduces invasiveness of cancer cells by inhibiting the activities of various metalloproteinases, cytokines, and chemokines. Last, EGCG inhibits some NADPH-producing enzymes, thus disturbing redox status and metabolism of glioma cells. In conclusion, EGCG may be a suitable adjuvant to potentiate anti-glioma therapies.
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Affiliation(s)
- Chung T Le
- a Department of Medical Biology , Academic Medical Center, University of Amsterdam, Amsterdam , The Netherlands
| | | | - Remco J Molenaar
- a Department of Medical Biology , Academic Medical Center, University of Amsterdam, Amsterdam , The Netherlands
| | - Cornelis J F van Noorden
- a Department of Medical Biology , Academic Medical Center, University of Amsterdam, Amsterdam , The Netherlands
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Lipid Metabolism and Lipid Droplets in Pancreatic Cancer and Stellate Cells. Cancers (Basel) 2017; 10:cancers10010003. [PMID: 29295482 PMCID: PMC5789353 DOI: 10.3390/cancers10010003] [Citation(s) in RCA: 92] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 12/19/2017] [Accepted: 12/20/2017] [Indexed: 02/06/2023] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is projected to become the second deadliest cancer by 2030, and the overall 5-year survival rate is currently less than 7%. Cancer cells frequently exhibit reprogramming of their metabolic activity. It is increasingly recognized that aberrant de novo lipid synthesis and reprogrammed lipid metabolism are both associated with the development and progression of various cancers, including pancreatic cancer. In this review, the current knowledge about lipid metabolism and lipid droplets in pancreatic cancer is discussed. In the first part, molecular mechanisms of lipid metabolism and roles of enzymes involved in lipid metabolism which are relevant for pancreatic cancer research are presented. Further, preclinical studies and clinical trials with drugs/inhibitors targeting cancer metabolic systems in cancer are summarized. An increase of our knowledge in lipid metabolism in pancreatic cancer cells and in tumor stroma is important for developing novel strategies of future individualized therapies of pancreatic cancer.
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Muñoz AR, Chakravarthy D, Gong J, Halff GA, Ghosh R, Kumar AP. Pancreatic cancer: Current status and Challenges. CURRENT PHARMACOLOGY REPORTS 2017; 3:396-408. [PMID: 29404265 PMCID: PMC5795623 DOI: 10.1007/s40495-017-0112-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
PURPOSE OF THE REVIEW The 5-year survival rate of patients with pancreatic cancer (PanCA) has remained stagnant. Unfortunately, the incidence is almost equal to mortality rates. These facts underscore the importance of concerted efforts to understand the pathology of this disease. Deregulation of multiple signaling pathways involved in a wide variety of cellular processes including proliferation, apoptosis, invasion, and metastasis contribute not only to cancer development but also to therapeutic resistance. The purpose of this review is to summarize current understanding of etiological factors including emerging evidence on the role of infectious agents, factors associated with therapeutic resistance and therapeutic options. RECENT FINDINGS The unique aspect of PanCA is "desmoplasia", a process that involves proliferation of stromal fibroblasts and collagen deposition in and around the filtrating cancer. Recent studies have identified pancreatic stellate cells (PSCs) as a potential source of such desmoplasia. Biphasic interactions between PSCs and cancer cells, endothelial cells, and/or myeloid derived suppressor cells in the tumor microenvironment contribute to pancreatic carcinogenesis. SUMMARY We summarize limitations of current therapeutic approaches and potential strategies to overcome these limitations using natural products including botanicals as adjuvant/neo-adjuvant for effective management of PanCA.
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Affiliation(s)
- Amanda R Muñoz
- Department of Urology, The University of Texas Health Science Center, San Antonio, TX
| | | | | | - Glenn A Halff
- Department of Surgery, The University of Texas Health Science Center, San Antonio, TX
| | - Rita Ghosh
- Department of Urology, The University of Texas Health Science Center, San Antonio, TX
- Department of Molecular Medicine, The University of Texas Health Science Center, San Antonio, TX
- Department of Pharmacology, The University of Texas Health Science Center, San Antonio, TX
- UT Health San Antonio Cancer Center, The University of Texas Health Science Center, San Antonio, TX
| | - Addanki P Kumar
- Department of Urology, The University of Texas Health Science Center, San Antonio, TX
- Department of Molecular Medicine, The University of Texas Health Science Center, San Antonio, TX
- Department of Pharmacology, The University of Texas Health Science Center, San Antonio, TX
- UT Health San Antonio Cancer Center, The University of Texas Health Science Center, San Antonio, TX
- South Texas Veterans Health Care System, The University of Texas Health Science Center, San Antonio, TX
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41
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Green Tea Extracts Epigallocatechin-3-gallate for Different Treatments. BIOMED RESEARCH INTERNATIONAL 2017; 2017:5615647. [PMID: 28884125 PMCID: PMC5572593 DOI: 10.1155/2017/5615647] [Citation(s) in RCA: 154] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Accepted: 06/28/2017] [Indexed: 02/05/2023]
Abstract
Epigallocatechin-3-gallate (EGCG), a component extracted from green tea, has been proved to have multiple effects on human pathological and physiological processes, and its mechanisms are discrepant in cancer, vascularity, bone regeneration, and nervous system. Although there are multiple benefits associated with EGCG, more and more challenges are still needed to get through. For example, EGCG shows low bioactivity via oral administration. This review focuses on effects of EGCG, including anti-cancer, antioxidant, anti-inflammatory, anticollagenase, and antifibrosis effects, to express the potential of EGCG and necessity of further studies in this field.
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42
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Singh AK, Sharma N, Ghosh M, Park YH, Jeong DK. Emerging importance of dietary phytochemicals in fight against cancer: Role in targeting cancer stem cells. Crit Rev Food Sci Nutr 2017; 57:3449-3463. [DOI: 10.1080/10408398.2015.1129310] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Amit Kumar Singh
- Laboratory of Animal Genetic Engineering and Stem Cell Biology, Department of Animal Biotechnology, Faculty of Biotechnology, Jeju National University, Jeju, Republic of Korea
| | - Neelesh Sharma
- Division of Veterinary Medicine, Faculty of Veterinary Science and Animal Husbandry, Sher-e-Kashmir University of Agricultural Sciences and Technology, R. S. Pura, Jammu, India
| | - Mrinmoy Ghosh
- Laboratory of Animal Genetic Engineering and Stem Cell Biology, Department of Animal Biotechnology, Faculty of Biotechnology, Jeju National University, Jeju, Republic of Korea
| | | | - Dong Kee Jeong
- Laboratory of Animal Genetic Engineering and Stem Cell Biology, Department of Animal Biotechnology, Faculty of Biotechnology, Jeju National University, Jeju, Republic of Korea
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Meng J, Tong Q, Liu X, Yu Z, Zhang J, Gao B. Epigallocatechin-3-gallate inhibits growth and induces apoptosis in esophageal cancer cells through the demethylation and reactivation of the p16 gene. Oncol Lett 2017; 14:1152-1156. [PMID: 28693288 DOI: 10.3892/ol.2017.6248] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Accepted: 11/01/2016] [Indexed: 11/06/2022] Open
Abstract
The present study aimed to investigate the effect of treatment with epigallocatechin-3-gallate (EGCG) on the human esophageal cancer cell line ECa109 and elucidate the associated underlying mechanisms. ECa109 cells were cultured and treated with increasing concentrations of EGCG for various durations. Cell viability was evaluated using the MTT assay and apoptosis was detected using flow cytometry. The methylation status of the cyclin-dependent kinase inhibitor 2A (p16) gene was analyzed using the methylation-specific polymerase chain reaction (PCR). p16 mRNA and protein expression was measured using reverse transcription-quantitative PCR and western blot analysis, respectively. The results of the present study demonstrated that, following treatment with EGCG, ECa109 cell viability was significantly decreased, while the rate of apoptosis was significantly increased (P<0.01), in a dose- and time-dependent manner. Following treatment of ECa109 cells with EGCG, p16 gene demethylation, and its mRNA and protein expression, were significantly increased compared with the untreated cells (P<0.01). EGCG may induce ECa109 cell apoptosis and inhibit cell growth through p16 gene demethylation, which restores its expression.
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Affiliation(s)
- Jianchao Meng
- Department of Oncology, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
| | - Qiang Tong
- Department of Gastroenterology, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
| | - Xiaobo Liu
- Department of Gastroenterology, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
| | - Zongtao Yu
- Department of Laboratory Medicine, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
| | - Jicai Zhang
- Department of Laboratory Medicine, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
| | - Bo Gao
- Department of Laboratory Medicine, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
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Pan P, Skaer C, Yu J, Zhao H, Ren H, Oshima K, Wang LS. Berries and other natural products in the pancreatic cancer chemoprevention in human clinical trials. JOURNAL OF BERRY RESEARCH 2017; 7:147-161. [PMID: 29367867 PMCID: PMC5777607 DOI: 10.3233/jbr-170159] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) was the 12th and 11th most common cancer in men and women worldwide in 2012, with the highest incidence in North America and Europe and the lowest in Africa and Asia. Due to the lack of efficient early diagnosis and rapid disease progression, PDAC patients have a 5-year survival rate of just 5%. Epidemiological studies suggest that smoking, obesity, type II diabetes, and pancreatitis are common risk factors for PDAC development. By contrast, high intake of fresh fruit, vegetables, and nuts rich in phytochemicals could reduce PDAC risk. This review summarizes the human clinical studies that have used berries or other natural products for chemoprevention of PDAC. Developing chemopreventive agents against PDAC would be tremendously valuable for the high-risk population and patients with premalignant lesions. Although some clinical trials of these agents have been completed, most are in early phases, and the results are not promising, which may be due to administration of the natural products at advanced stages of PDAC. Thus, further mechanistic studies using genetic animal models that recapitulate the tumor microenvironment and immunology of human PDAC would be informative for selecting an effective window for intervention with berries or other natural compounds.
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Affiliation(s)
- Pan Pan
- Division of Hematology and Oncology, Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Chad Skaer
- Division of Hematology and Oncology, Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, USA. Present address: Blood Research Institute, Blood Center of Wisconsin, Milwaukee, WI, USA
| | - Jianhua Yu
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH, USA
| | - Hui Zhao
- Tianjin Key Laboratory of Food Biotechnology, Tianjin University of Commerce, Tianjin, China
| | - He Ren
- Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Kiyoko Oshima
- Department of Pathology, Johns Hopkins University, Baltimore, MD, USA
| | - Li-Shu Wang
- Division of Hematology and Oncology, Department of Medicine, Medical College of Wisconsin, RM C4930, 8701 Watertown Plank Rd, Milwaukee, WI, 53226, USA
- Corresponding author: Telephone: 414-955-2827 Fax: 414-955-6059
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Zeng Y, Feng Q, Gu D, Vaupel JW. Demographics, phenotypic health characteristics and genetic analysis of centenarians in China. Mech Ageing Dev 2016; 165:86-97. [PMID: 28040447 DOI: 10.1016/j.mad.2016.12.010] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2016] [Revised: 12/16/2016] [Accepted: 12/22/2016] [Indexed: 12/11/2022]
Abstract
After a brief introduction to the background, significance and unique features of the centenarian population in China, we describe the Chinese Longitudinal Healthy Longevity Study (CLHLS), which is the world's largest study of centenarians, nonagenarians, octogenarians, and compatible young-old aged 65-79. Based on the CLHLS data and other relevant studies, we summarize demographic and socioeconomic characteristics as well as self-reported and objectively-tested health indicators of centenarians in China, with an emphasis on gender differences and rural/urban disparities. We then compare five-year-age-specific trajectories of physical and cognitive functions, self-reported health, and life satisfactions from ages 65-69 to 100+, concluding that good psychological resilience and optimism are keys to the exceptional longevity enjoyed by centenarians. We discuss recent findings of novel loci and pathways that are significantly associated with longevity based on the genome-wide association study (GWAS) of the CLHLS centenarian sample, which is 2.7 times as large as prior GWAS of longevity. We also highlight colleagues' and our own studies on longevity candidate genes and gene-environment interaction analyses. Finally, we discuss limitations inherent in our studies of centenarians in China and further research perspectives.
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Affiliation(s)
- Yi Zeng
- Center for the Study of Aging and Human Development, Medical School of Duke University, United States; Center for Healthy Aging and Development Studies, National School of Development, Raissun Institute for Advanced Studies, Peking University, China.
| | - Qiushi Feng
- Department of Sociology & Centre for Family and Population Research, National University of Singapore, Singapore
| | - Danan Gu
- United Nations Population Division, United States
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Fernando W, Coombs MRP, Hoskin DW, Rupasinghe HPV. Docosahexaenoic acid-acylated phloridzin, a novel polyphenol fatty acid ester derivative, is cytotoxic to breast cancer cells. Carcinogenesis 2016; 37:1004-1013. [PMID: 27535497 DOI: 10.1093/carcin/bgw087] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Accepted: 08/12/2016] [Indexed: 01/31/2023] Open
Abstract
Docosahexaenoic acid-acylated phloridzin (PZ-DHA), a novel polyphenol fatty acid ester derivative, was synthesized through a regioselective acylation reaction with the aim of increasing the bioactivity of phloridzin (PZ) and docosahexaenoic acid (DHA). In this study, PZ-DHA's cytotoxic activity was explored using in vitro and in vivo models of mammary carcinoma. PZ-DHA was selectively cytotoxic for mammary carcinoma (MDA-MB-231, MDA-MB-468, 4T1, MCF-7 and T-47D) cells compared to non-malignant human mammary epithelial cells (HMEC and MCF-10A) and fibroblasts by MTS assay and Annexin-V-FLUOS/propidium iodide staining. Flow cytometric analysis of Oregon Green 488- and Ki-67-stained MDA-MB-231 cells showed antiproliferative activity of PZ-DHA at a subcytotoxic concentration. PZ-DHA also arrested MDA-MB-231 cell division at the G2/M phase and down-regulated expression of cyclin B1 and cyclin-dependent kinase 1 (CDK1). PZ-DHA-induced apoptosis in MDA-MB-231 cells was confirmed by caspase 3/7 activation in a luminescence assay and DNA fragmentation by TUNEL staining. Moreover, MDA-MB-231 xenograft growth in non-obese diabetic severe combined immunodeficient mice was suppressed by intra-tumoral administration of PZ-DHA. This study shows that PZ-DHA is selectively cytotoxic to breast cancer cells in vitro and in vivo, suggesting that further investigations of PZ-DHA are warranted as a potential treatment for breast cancer.
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Affiliation(s)
| | | | - David W Hoskin
- Department of Pathology.,Department of Microbiology and Immunology and.,Department of Surgery, Faculty of Medicine, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada and
| | - H P Vasantha Rupasinghe
- Department of Pathology.,Department of Environmental Sciences, Faculty of Agriculture, Dalhousie University, Truro, Nova Scotia B2N 5E3, Canada
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Benlloch M, Obrador E, Valles SL, Rodriguez ML, Sirerol JA, Alcácer J, Pellicer JA, Salvador R, Cerdá C, Sáez GT, Estrela JM. Pterostilbene Decreases the Antioxidant Defenses of Aggressive Cancer Cells In Vivo: A Physiological Glucocorticoids- and Nrf2-Dependent Mechanism. Antioxid Redox Signal 2016; 24:974-90. [PMID: 26651028 PMCID: PMC4921902 DOI: 10.1089/ars.2015.6437] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
AIMS Polyphenolic phytochemicals have anticancer properties. However, in mechanistic studies, lack of correlation with the bioavailable concentrations is a critical issue. Some reports had suggested that these molecules downregulate the stress response, which may affect growth and the antioxidant protection of malignant cells. Initially, we studied this potential underlying mechanism using different human melanomas (with genetic backgrounds correlating with most melanomas), growing in nude mice as xenografts, and pterostilbene (Pter, a natural dimethoxylated analog of resveratrol). RESULTS Intravenous administration of Pter decreased human melanoma growth in vivo. However, Pter, at levels measured within the tumors, did not affect melanoma growth in vitro. Pter inhibited pituitary production of the adrenocorticotropin hormone (ACTH), decreased plasma levels of corticosterone, and thereby downregulated the glucocorticoid receptor- and nuclear factor (erythroid-derived 2)-like 2 (Nrf2)-dependent antioxidant defense system in growing melanomas. Exogenous corticosterone or genetically induced Nrf2 overexpression in melanoma cells prevented the inhibition of tumor growth and decreased antioxidant defenses in these malignant cells. These effects and mechanisms were also found in mice bearing different human pancreatic cancers. Glutathione depletion (selected as an antimelanoma strategy) facilitated the complete elimination by chemotherapy of melanoma cells isolated from mice treated with Pter. INNOVATION Although bioavailability-related limitations may preclude direct anticancer effects in vivo, natural polyphenols may also interfere with the growth and defense of cancer cells by downregulating the pituitary gland-dependent ACTH synthesis. CONCLUSIONS Pter downregulates glucocorticoid production, thus decreasing the glucocorticoid receptor and Nrf2-dependent signaling/transcription and the antioxidant protection of melanoma and pancreatic cancer cells. Antioxid. Redox Signal. 24, 974-990.
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Affiliation(s)
- María Benlloch
- 1 Department of Health and Functional Valorization, San Vicente Martir Catholic University , Valencia, Spain
| | - Elena Obrador
- 2 Department of Physiology, University of Valencia , Valencia, Spain
| | - Soraya L Valles
- 2 Department of Physiology, University of Valencia , Valencia, Spain
| | - María L Rodriguez
- 2 Department of Physiology, University of Valencia , Valencia, Spain
| | - J Antoni Sirerol
- 2 Department of Physiology, University of Valencia , Valencia, Spain
| | - Javier Alcácer
- 3 Pathology Laboratory, Quirón Hospital , Valencia, Spain
| | - José A Pellicer
- 2 Department of Physiology, University of Valencia , Valencia, Spain
| | - Rosario Salvador
- 2 Department of Physiology, University of Valencia , Valencia, Spain
| | - Concha Cerdá
- 4 Service of Clinical Analysis-CDB, General University Hospital, University of Valencia , Valencia, Spain
| | - Guillermo T Sáez
- 4 Service of Clinical Analysis-CDB, General University Hospital, University of Valencia , Valencia, Spain .,5 Department of Biochemistry and Molecular Biology, Faculty of Medicine and Odontology-INCLIVA, Service of Clinical Analysis, Dr. Peset University Hospital, University of Valencia , Valencia, Spain
| | - José M Estrela
- 2 Department of Physiology, University of Valencia , Valencia, Spain
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Shin S, Kim K, Lee MJ, Lee J, Choi S, Kim KS, Ko JM, Han H, Kim SY, Youn HJ, Ahn KJ, An IS, An S, Cha HJ. Epigallocatechin Gallate-Mediated Alteration of the MicroRNA Expression Profile in 5α-Dihydrotestosterone-Treated Human Dermal Papilla Cells. Ann Dermatol 2016; 28:327-34. [PMID: 27274631 PMCID: PMC4884709 DOI: 10.5021/ad.2016.28.3.327] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2015] [Revised: 08/04/2015] [Accepted: 08/11/2015] [Indexed: 11/08/2022] Open
Abstract
BACKGROUND Dihydrotestosterone (DHT) induces androgenic alopecia by shortening the hair follicle growth phase, resulting in hair loss. We previously demonstrated how changes in the microRNA (miRNA) expression profile influenced DHT-mediated cell death, cell cycle arrest, cell viability, the generation of reactive oxygen species (ROS), and senescence. Protective effects against DHT have not, however, been elucidated at the genome level. OBJECTIVE We showed that epigallocatechin gallate (EGCG), a major component of green tea, protects DHT-induced cell death by regulating the cellular miRNA expression profile. METHODS We used a miRNA microarray to identify miRNA expression levels in human dermal papilla cells (DPCs). We investigated whether the miRNA expression influenced the protective effects of EGCG against DHT-induced cell death, growth arrest, intracellular ROS levels, and senescence. RESULTS EGCG protected against the effects of DHT by altering the miRNA expression profile in human DPCs. In addition, EGCG attenuated DHT-mediated cell death and growth arrest and decreased intracellular ROS levels and senescence. A bioinformatics analysis elucidated the relationship between the altered miRNA expression and EGCG-mediated protective effects against DHT. CONCLUSION Overall, our results suggest that EGCG ameliorates the negative effects of DHT by altering the miRNA expression profile in human DPCs.
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Affiliation(s)
- Shanghun Shin
- Korea Institute for Skin and Clinical Sciences and Molecular-Targeted Drug Research Center, Konkuk University, Seoul, Korea
| | - Karam Kim
- Korea Institute for Skin and Clinical Sciences and Molecular-Targeted Drug Research Center, Konkuk University, Seoul, Korea
| | - Myung Joo Lee
- Korea Institute for Skin and Clinical Sciences and Molecular-Targeted Drug Research Center, Konkuk University, Seoul, Korea
| | - Jeongju Lee
- Korea Institute for Skin and Clinical Sciences and Molecular-Targeted Drug Research Center, Konkuk University, Seoul, Korea
| | - Sungjin Choi
- Korea Institute for Skin and Clinical Sciences and Molecular-Targeted Drug Research Center, Konkuk University, Seoul, Korea
| | - Kyung-Suk Kim
- Korea Institute for Skin and Clinical Sciences and Molecular-Targeted Drug Research Center, Konkuk University, Seoul, Korea
| | - Jung-Min Ko
- Korea Institute for Skin and Clinical Sciences and Molecular-Targeted Drug Research Center, Konkuk University, Seoul, Korea
| | - Hyunjoo Han
- Korea Institute for Skin and Clinical Sciences and Molecular-Targeted Drug Research Center, Konkuk University, Seoul, Korea
| | - Su Young Kim
- Korea Institute for Skin and Clinical Sciences and Molecular-Targeted Drug Research Center, Konkuk University, Seoul, Korea
| | - Hae Jeong Youn
- Department of Dermatology, Konkuk University School of Medicine, Seoul, Korea
| | - Kyu Joong Ahn
- Department of Dermatology, Konkuk University School of Medicine, Seoul, Korea
| | | | - Sungkwan An
- Korea Institute for Skin and Clinical Sciences and Molecular-Targeted Drug Research Center, Konkuk University, Seoul, Korea
| | - Hwa Jun Cha
- Korea Institute for Skin and Clinical Sciences and Molecular-Targeted Drug Research Center, Konkuk University, Seoul, Korea
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Liu S, Xu ZL, Sun L, Liu Y, Li CC, Li HM, Zhang W, Li CJ, Qin W. (‑)‑Epigallocatechin‑3‑gallate induces apoptosis in human pancreatic cancer cells via PTEN. Mol Med Rep 2016; 14:599-605. [PMID: 27176210 DOI: 10.3892/mmr.2016.5277] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Accepted: 04/06/2016] [Indexed: 01/30/2023] Open
Abstract
Phosphatase and tensin homolog deleted on chromosome 10 (PTEN) is a cancer suppressor gene and an important negative regulator in the phosphatidylinositide 3‑kinase (PI3K)/protein kinase B (Akt)/ mechanistic target of rapamycin (mTOR) signaling pathway. The PI3K/Akt/mTOR pathway can promote cancer cell survival, proliferation and progression. In the present study, the effects of (‑)‑epigallocatechin‑3‑gallate (EGCG) on PI3K/Akt/mTOR signaling in pancreatic cancer cells and PTEN knockdown cells were measured, in addition to assessing its therapeutic potential in pancreatic cancer. The apoptosis and proliferation of the cancer cells were examined by flow cytometry and Cell Counting kit‑8 assay, respectively. The expression of genes and proteins in the PI3K/Akt/mTOR signaling pathway were investigated by reverse transcription‑polymerase chain reaction and western blotting, respectively. The results suggested that the EGCG‑induced apoptosis, proliferation inhibition and downregulated expression of phosphorylated (p)‑Akt and p‑mTOR were partially attenuated in PTEN‑knockdown cells. In conclusion, the results indicated that EGCG is able to reduce proliferation and induce the apoptosis of pancreatic cancer cells associated with the expression of PTEN. Additionally, EGCG can suppress the expression of p‑Akt and p‑mTOR via PTEN to regulate the PI3K/Akt/mTOR pathway. The results suggest that EGCG may represent a potential treatment for pancreatic cancer, based on PTEN activation.
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Affiliation(s)
- Shi Liu
- Department of General Surgery, The Third Affiliated Hospital of Qiqihar Medical University, Qiqihar, Heilongjiang 161099, P.R. China
| | - Zhong-Ling Xu
- Department of Oncology, The Third Affiliated Hospital of Qiqihar Medical University, Qiqihar, Heilongjiang 161099, P.R. China
| | - Li Sun
- Department of Oncology, The Third Affiliated Hospital of Qiqihar Medical University, Qiqihar, Heilongjiang 161099, P.R. China
| | - Ying Liu
- Department of Oncology, The Third Affiliated Hospital of Qiqihar Medical University, Qiqihar, Heilongjiang 161099, P.R. China
| | - Cheng-Chong Li
- Department of Pharmaceutical Science, Qiqihar Medical University, Qiqihar, Heilongjiang 161099, P.R. China
| | - Hong-Mei Li
- Department of Pharmaceutical Science, Qiqihar Medical University, Qiqihar, Heilongjiang 161099, P.R. China
| | - Wei Zhang
- Department of Oncology, The Third Affiliated Hospital of Qiqihar Medical University, Qiqihar, Heilongjiang 161099, P.R. China
| | - Cheng-Jun Li
- Department of Pharmaceutical Science, Qiqihar Medical University, Qiqihar, Heilongjiang 161099, P.R. China
| | - Wei Qin
- Department of Pharmaceutical Science, Qiqihar Medical University, Qiqihar, Heilongjiang 161099, P.R. China
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Wang M, Shan F, Zou Y, Sun X, Zhang ZR, Fu Y, Gong T. Pharmacokinetic and pharmacodynamic study of a phospholipid-based phase separation gel for once a month administration of octreotide. J Control Release 2016; 230:45-56. [DOI: 10.1016/j.jconrel.2016.03.036] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2015] [Revised: 03/03/2016] [Accepted: 03/29/2016] [Indexed: 01/28/2023]
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