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Chemopreventive Properties of Black Raspberries and Strawberries in Esophageal Cancer Review. Antioxidants (Basel) 2022; 11:antiox11091815. [PMID: 36139889 PMCID: PMC9495642 DOI: 10.3390/antiox11091815] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 09/02/2022] [Accepted: 09/10/2022] [Indexed: 11/17/2022] Open
Abstract
Esophageal cancer is one of the most fetal malignancies in the world. Esophageal squamous cell carcinoma (SCC) and esophageal adenocarcinoma (AC) are two main types of esophageal cancer and each with distinct epidemiological, etiological and histopathological characteristics. The continued global prevalence of tobacco use and alcohol consumption, coupled with limited intake of fresh fruits and vegetables, ensures that esophageal cancer will remain one of the major health threats. In addition to promoting quitting smoking and alcohol abuse, one of the strategies of cancer prevention is to identify foods, food components, or dietary patterns that can prevent or delay the onset of esophageal cancer. A food-based approach has the advantage of a complex of mixtures of bioactive components simultaneously targeting multiple processes in carcinogenesis. We have employed a preclinical rodent model of esophageal SCC to assess the effects of black raspberries (BRB) and strawberries. Our investigations demonstrate that BRB and strawberries are potent inhibitors of esophageal cancer. To prepare for this review, a literature search was performed to screen BRB and strawberries against esophageal cancer using electronic databases from PubMed, Science Direct and Google Scholar. Search was conducted covering the period from January 2000 to June 2022. Our present review has provided a systematic review about chemopreventive effects of BRB and strawberries in esophageal cancer by collecting and compiling diverse research findings from the above sources. In this review, we discussed the anti-tumor potentials of BRB and strawberries in esophageal SCC and esophageal AC separately. For each cancer type, we discuss animal models and research findings from both animal bioassays and human clinical studies. We also discuss the potential mechanisms of action of berries and their key bioactive components.
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Melatonin Alleviates Oxidative Stress Induced by H2O2 in Porcine Trophectodern Cells. Antioxidants (Basel) 2022; 11:antiox11061047. [PMID: 35739944 PMCID: PMC9219737 DOI: 10.3390/antiox11061047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 05/13/2022] [Accepted: 05/18/2022] [Indexed: 01/17/2023] Open
Abstract
Placental oxidative stress has been implicated as a main risk factor for placental dysfunction. Alleviation of oxidative stress and enhancement of antioxidant capacity of porcine trophectoderm (PTr2) cells are effective means to maintaining normal placental function. The present study was conducted to evaluate the protective effect of melatonin (MT) on H2O2-induced oxidative damage in PTr2 cells. Our data revealed that pretreatment with MT could significantly improve the decrease in cell viability induced by H2O2, and reduce intracellular reactive oxygen species (ROS) levels and the ratio of apoptotic cells. Here, we compared the transcriptomes of untreated versus melatonin-treated PTr2 cells by RNA-seq analysis and found that differentially expressed genes (DEGs) were highly enriched in the Wnt signaling, TGF-beta signaling and mTOR signaling pathways. Moreover, pretreatment with MT upregulated the antioxidant-related genes such as early growth response3 (EGR3), WAP four-disulfide core domain1 (WFDC1), heme oxygenase1 (HMOX1) and vimentin (VIM). These findings reveal that melatonin protects PTr2 cells from H2O2-induced oxidative stress damage.
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Affiliation(s)
- Gary D. Stoner
- College of Medicine The Ohio State University Columbus Ohio
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Xie Y, Dong CD, Wu Q, Jiang Y, Yao K, Zhang J, Zhao S, Ren Y, Yuan Q, Chen X, Liu Z, Zhao J, Liu K. Ornithine decarboxylase inhibition downregulates multiple pathways involved in the formation of precancerous lesions of esophageal squamous cell cancer. Mol Carcinog 2019; 59:215-226. [PMID: 31793679 DOI: 10.1002/mc.23144] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Revised: 11/22/2019] [Accepted: 11/25/2019] [Indexed: 02/06/2023]
Abstract
The high incidence and mortality of esophageal squamous cell cancer (ESCC) is a major health problem worldwide. Precancerous lesions of ESCC may either progress to cancer or revert to normal epithelium with appropriate interventions; the bidirectional instability of the precancerous lesions of ESCC provides opportunities for intervention. Reports suggest that the upregulation of ornithine decarboxylase (ODC) is closely related to carcinogenesis. In this study, we investigated whether ODC may act as a target for chemoprevention in ESCC. Immunohistochemistry (IHC) assays indicate that ODC expression is higher in esophageal precancerous lesions compared with normal tissue controls. Its overexpression promotes cell proliferation and transformation of normal esophageal epithelial cells, and its activity is increased after N-nitrosomethylbenzylamine (NMBA) induction in Shantou human embryonic esophageal cell line (SHEE) and human immortalized cells (Het1A) cells. In addition, p38 α, extracellular regulated kinase (ERK1/2) in the mitogen-activated protein kinase pathway and protein kinase B (AKT)/mammalian target of rapamycin (mTOR)/ribosomal protein S6 kinase (p70S6K) pathways are activated in response to NMBA treatment. Difluoromethylornithine (DFMO) is an ODC inhibitor, which inhibits NMBA-induced activation of p38 α, ERK1/2 and AKT/mTOR/p70S6K pathways; this has been verified by Western blotting. DFMO was also found to suppress the development of esophageal precancerous lesions in an NMBA-induced rat model; IHC demonstrated p38 α, ERK1/2, and AKT/mTOR/p70S6K pathways to be downregulated in these rats. These findings indicate the mechanisms by which ODC inhibition suppresses the development of esophageal precancerous lesions by downregulating p38 α, ERK1/2, and AKT/mTOR/p70S6k signaling pathways, ODC may be a potential target for chemoprevention in ESCC.
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Affiliation(s)
- Yifei Xie
- Department of Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | | | - Qiong Wu
- Department of Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China.,China-US (Henan) Hormel Cancer Institute, Zhengzhou, Henan, China
| | - Yanan Jiang
- Department of Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China.,Henan Provincial Cooperative Innovation Center for Cancer Chemoprevention, Zhengzhou University, Zhengzhou, Henan, China
| | - Ke Yao
- The Hormel Institute, University of Minnesota, Austin, Minnesota
| | - Jing Zhang
- Department of Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Simin Zhao
- Department of Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Ying Ren
- Pathology Department, Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - Qiang Yuan
- Department of Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Xinhuan Chen
- Department of Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China.,Henan Provincial Cooperative Innovation Center for Cancer Chemoprevention, Zhengzhou University, Zhengzhou, Henan, China
| | - Zhongyi Liu
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, China
| | - Jimin Zhao
- Department of Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China.,Henan Provincial Cooperative Innovation Center for Cancer Chemoprevention, Zhengzhou University, Zhengzhou, Henan, China
| | - Kangdong Liu
- Department of Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China.,China-US (Henan) Hormel Cancer Institute, Zhengzhou, Henan, China.,Henan Provincial Cooperative Innovation Center for Cancer Chemoprevention, Zhengzhou University, Zhengzhou, Henan, China.,Cancer Chemoprevention International Collaboration Laboratory, Zhengzhou, Henan, China.,Henan Provincial Key Laboratory of Esophageal Cancer, Zhengzhou, Henan, China
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Pan P, Dombkowski AA, Wang LS, Stoner GD. A nutrigenetic approach for investigating the chemopreventive effects of black raspberries during the development of preneoplastic esophagi in rats. JOURNAL OF BERRY RESEARCH 2018; 8:263-274. [PMID: 30613310 PMCID: PMC6319902 DOI: 10.3233/jbr-180346] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
BACKGROUND Large epidemiological studies have shown that diets high in fruits reduce the risk of esophageal squamous cell carcinoma (ESCC). OBJECTIVE The current study investigated the effects of black raspberries (BRBs) on gene expression during the development of preneoplastic esophagi in rats. METHODS Using a post-initiation protocol, F344 rats were injected with N-nitrosomethylbenzylamine (NMBA) and then fed either a control diet or 5% BRBs. At weeks 9, 15, and 35, we euthanized subgroups of the rats and collected preneoplastic esophagi to isolate RNA samples for DNA microarray. RESULTS Along the development of NMBA-induced preneoplastic esophagi, NMBA injections led to differential expression of 1181 genes comparing to control rats, and dietary BRBs modulated 428 genes in esophagi from NMBA-treated rats. There are 137 common genes between 1181 and 428 gene sets, and BRBs significantly reversed the expression of 133 genes. These genes are associated with multiple gene oncology functions. BRBs induced an 8.8-fold gene enrichment on the pathway of inflammatory response and regulated 10 genes involved in this pathway. Among them, BRBs significantly reversed the expression of pro-inflammatory cytokines, such as CCL2, S100A8, and IL19. CONCLUSIONS BRBs exhibit strong anti-inflammatory effects against NMBA-induced rat esophageal tumorigenesis.
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Affiliation(s)
- Pan Pan
- Department of Medicine, Division of Hematology and Oncology, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Alan A. Dombkowski
- Department of Pediatrics, Wayne State University School of Medicine, Detroit, MI, USA
| | - Li-Shu Wang
- Department of Medicine, Division of Hematology and Oncology, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Gary D. Stoner
- Department of Medicine, Division of Hematology and Oncology, Medical College of Wisconsin, Milwaukee, WI, USA
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Pan P, Peiffer DS, Huang YW, Oshima K, Stoner GD, Wang LS. Inhibition of the development of N-nitrosomethylbenzylamine-induced esophageal tumors in rats by strawberries and aspirin, alone and in combination. JOURNAL OF BERRY RESEARCH 2018; 8:137-146. [PMID: 29977412 PMCID: PMC6029707 DOI: 10.3233/jbr-170291] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
BACKGROUND Esophageal squamous cell carcinoma (ESCC) is one of two subtypes of esophageal cancer, with high incidence and mortality rates in developing countries. OBJECTIVE The current study investigated the potential chemoprotective effects of strawberries and aspirin against the development of rat esophageal papillomas, the precursors to ESCC. METHODS Using a prevention model, we administered study diets to rats before, during, and after N-nitrosomethylbenzylamine (NMBA) treatment. The effects of the four diets were evaluated: the control diet, 5% strawberry powder in the control diet, 0.01% aspirin in the drinking water, and the combination of strawberries and aspirin. At week 25, we euthanized all the rats and collected their esophagi to quantify tumor incidence, multiplicity, and burden, as well as for molecular analysis. RESULTS Both strawberries and aspirin significantly decreased esophageal tumor multiplicity, with the combination causing the most robust suppression. Aspirin alone and the combination decreased the total tumor burden in the esophagus. None of the diets had a significant effect on tumor incidence or the expression of COX-1 and COX-2. Strawberries and aspirin, alone and in combination, significantly suppressed squamous epithelial cell proliferation (PCNA). CONCLUSIONS Strawberries, aspirin, and their combination exhibit chemoprotective effects against NMBA-induced esophageal tumors in rats.
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Affiliation(s)
- Pan Pan
- Department of Medicine, Division of Hematology and Oncology, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Daniel S. Peiffer
- Department of Medicine, Division of Hematology and Oncology, Medical College of Wisconsin, Milwaukee, WI, USA
- Current: Stritch School of Medicine, Loyola University Chicago, Chicago, IL, USA
| | - Yi-Wen Huang
- Department of Obstetrics and Gynecology, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Kiyoko Oshima
- Department of Pathology, Medical College of Wisconsin, Milwaukee, WI, USA
- Current: Department of Pathology, John Hopkins University, Baltimore, MD, USA
| | - Gary D. Stoner
- Department of Medicine, Division of Hematology and Oncology, Medical College of Wisconsin, Milwaukee, WI, USA
- Corresponding authors. Gary D. Stoner, Department of Medicine, Division of Hematology and Oncology, Medical College of Wisconsin, Milwaukee, WI, USA. and 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. Tel.: +1 414 955 2827; Fax: +1 414 955 6059;
| | - Li-Shu Wang
- Department of Medicine, Division of Hematology and Oncology, Medical College of Wisconsin, Milwaukee, WI, USA
- Corresponding authors. Gary D. Stoner, Department of Medicine, Division of Hematology and Oncology, Medical College of Wisconsin, Milwaukee, WI, USA. and 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. Tel.: +1 414 955 2827; Fax: +1 414 955 6059;
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Bishayee A, Haskell Y, Do C, Siveen KS, Mohandas N, Sethi G, Stoner GD. Potential Benefits of Edible Berries in the Management of Aerodigestive and Gastrointestinal Tract Cancers: Preclinical and Clinical Evidence. Crit Rev Food Sci Nutr 2017; 56:1753-75. [PMID: 25781639 DOI: 10.1080/10408398.2014.982243] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Epidemiological reports as well as experimental studies have demonstrated the significant health benefits provided by regular berry consumption. Berries possess both prophylactic and therapeutic potential against several chronic illnesses, such as cardiovascular, neurodegenerative, and neoplastic diseases. Berries owe their health benefits to phytoconstituents, such as polyphenolic anthocyanins, ellagic acid, and a diverse array of phytochemicals bestowed with potent antioxidant and anti-inflammatory effects as well as the ability to engage a multitude of signaling pathways. This review highlights the principal chemical constituents present in berries and their primary molecular targets. The article presents and critically analyzes the chemopreventive and therapeutic potential of berry extracts, fractions, and bioactive components on various cancers of the gastrointestinal tract (GIT), including esophageal, stomach, intestinal, and colorectal cancers as well as cancers of the upper aerodigestive tract, such as oral cancer. The current status of clinical studies evaluating berry products in several aforementioned cancers is presented. Various emerging issues including dose-ranging and dosage forms, the role of synergy and the usage of combination therapy as well as other relevant areas essential for the development of berry phytoconstituents as mainstream chemopreventive and therapeutic agents against aerodigestive and GIT cancers are critically discussed.
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Affiliation(s)
- Anupam Bishayee
- a Department of Pharmaceutical Sciences , College of Pharmacy, Larkin Health Sciences Institute , Miami , Florida USA
| | - Yennie Haskell
- b Department of Pharmaceutical Sciences , College of Pharmacy, Northeast Ohio Medical University , Rootstown , Ohio USA
| | - Chau Do
- b Department of Pharmaceutical Sciences , College of Pharmacy, Northeast Ohio Medical University , Rootstown , Ohio USA
| | - Kodappully Sivaraman Siveen
- c Department of Pharmacology , Yong Loo Lin School of Medicine, National University of Singapore , Singapore
| | - Nima Mohandas
- d School of Biomedical Sciences, Curtin Health Innovation Research Institute, Biosciences Research Precinct, Curtin University , Western Australia , Australia
| | - Gautam Sethi
- c Department of Pharmacology , Yong Loo Lin School of Medicine, National University of Singapore , Singapore.,d School of Biomedical Sciences, Curtin Health Innovation Research Institute, Biosciences Research Precinct, Curtin University , Western Australia , Australia
| | - Gary D Stoner
- e Division of Hematology and Oncology , Department of Medicine, Medical College of Wisconsin , Milwaukee , Wisconsin USA
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Kristo AS, Klimis-Zacas D, Sikalidis AK. Protective Role of Dietary Berries in Cancer. Antioxidants (Basel) 2016; 5:antiox5040037. [PMID: 27775562 PMCID: PMC5187535 DOI: 10.3390/antiox5040037] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Revised: 09/24/2016] [Accepted: 10/11/2016] [Indexed: 12/25/2022] Open
Abstract
Dietary patterns, including regular consumption of particular foods such as berries as well as bioactive compounds, may confer specific molecular and cellular protection in addition to the overall epidemiologically observed benefits of plant food consumption (lower rates of obesity and chronic disease risk), further enhancing health. Mounting evidence reports a variety of health benefits of berry fruits that are usually attributed to their non-nutritive bioactive compounds, mainly phenolic substances such as flavonoids or anthocyanins. Although it is still unclear which particular constituents are responsible for the extended health benefits, it appears that whole berry consumption generally confers some anti-oxidant and anti-inflammatory protection to humans and animals. With regards to cancer, studies have reported beneficial effects of berries or their constituents including attenuation of inflammation, inhibition of angiogenesis, protection from DNA damage, as well as effects on apoptosis or proliferation rates of malignant cells. Berries extend effects on the proliferation rates of both premalignant and malignant cells. Their effect on premalignant cells is important for their ability to cause premalignant lesions to regress both in animals and in humans. The present review focuses primarily on in vivo and human dietary studies of various berry fruits and discusses whether regular dietary intake of berries can prevent cancer initiation and delay progression in humans or ameliorate patients’ cancer status.
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Affiliation(s)
- Aleksandra S Kristo
- Department of Nutrition and Dietetics, Istanbul Yeni Yuzyil University, Yilanli Ayasma Caddesi No. 26, Istanbul 34010, Turkey.
| | | | - Angelos K Sikalidis
- Department of Nutrition and Dietetics, Istanbul Yeni Yuzyil University, Yilanli Ayasma Caddesi No. 26, Istanbul 34010, Turkey.
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Tian H, Yu J, Yang H, Zhu C, Fu H. Catalyst-Free Isothiocyanatoalkylthiation of Styrenes with (Alkylthio)pyrrolidine-2,5-diones and Trimethylsilyl Isothiocyanate. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201501181] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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10
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Isothiocyanates: a class of bioactive metabolites with chemopreventive potential. Tumour Biol 2015; 36:4005-16. [DOI: 10.1007/s13277-015-3391-5] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2014] [Accepted: 03/25/2015] [Indexed: 12/21/2022] Open
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Warner BM, Casto BC, Knobloch TJ, Accurso BT, Weghorst CM. Chemoprevention of oral cancer by topical application of black raspberries on high at-risk mucosa. Oral Surg Oral Med Oral Pathol Oral Radiol 2014; 118:674-83. [PMID: 25457886 PMCID: PMC4254525 DOI: 10.1016/j.oooo.2014.09.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2014] [Revised: 09/02/2014] [Accepted: 09/04/2014] [Indexed: 12/19/2022]
Abstract
OBJECTIVE To evaluate the preclinical efficacy of topical administration of freeze-dried black raspberries (BRBs) to inhibit the progression of premalignant oral lesions and modulate biomarkers of cancer development in high at-risk mucosa (HARM). STUDY DESIGN Hamster cheek pouches (HCPs) were treated with carcinogen for 6 weeks to initiate a HARM microenvironment. Subsequently, right HCPs were topically administered a BRB suspension in short-term or long-term studies. After 12 weeks, squamous cell carcinoma (SCC) multiplicity, SCC incidence, and cell proliferation rates were evaluated. mRNA expression was measured in short-term treated pouches for selected oral cancer biomarkers. RESULTS SCC multiplicity (-41.3%), tumor incidence (-37.1%), and proliferation rate (-6.9%) were reduced in HCPs receiving BRBs. Topical BRBs correlated with an increase in RB1 expression in developing oral lesions. CONCLUSIONS Topical BRBs inhibit SCC development when targeted to HARM tissues. These results support the translational role of BRBs to prevent oral cancer development in humans.
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Affiliation(s)
- Blake M Warner
- University College of Public Health, The Ohio State University, Columbus, OH, USA; College of Dentistry The Ohio State University, Columbus, OH, USA; School of Dental Medicine, University of Pittsburgh, Pittsburgh, PA, USA.
| | - Bruce C Casto
- University College of Public Health, The Ohio State University, Columbus, OH, USA; Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
| | - Thomas J Knobloch
- University College of Public Health, The Ohio State University, Columbus, OH, USA; Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
| | - Brent T Accurso
- College of Dentistry The Ohio State University, Columbus, OH, USA
| | - Christopher M Weghorst
- University College of Public Health, The Ohio State University, Columbus, OH, USA; Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
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Peiffer DS, Zimmerman NP, Wang LS, Ransom BWS, Carmella SG, Kuo CT, Siddiqui J, Chen JH, Oshima K, Huang YW, Hecht SS, Stoner GD. Chemoprevention of esophageal cancer with black raspberries, their component anthocyanins, and a major anthocyanin metabolite, protocatechuic acid. Cancer Prev Res (Phila) 2014; 7:574-84. [PMID: 24667581 PMCID: PMC6108893 DOI: 10.1158/1940-6207.capr-14-0003] [Citation(s) in RCA: 85] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Diets containing either freeze-dried black raspberries (BRBs) or their polyphenolic anthocyanins (ACs) have been shown to inhibit the development of N-nitrosomethylbenzylamine (NMBA)-induced esophageal cancer in rats. The present study was conducted to determine whether PCA, a major microbial metabolite of black raspberry (BRB) ACs, also prevents NMBA-induced esophageal cancer in rats. F344 rats were injected with NMBA three times a week for 5 weeks and then fed control or experimental diets containing 6.1% BRBs, an anthocyanin (AC)-enriched fraction derived from BRBs, or protocatechuic acid (PCA). Animals were exsanguinated at weeks 15, 25, and 35 to quantify the development of preneoplastic lesions and tumors in the esophagus, and to relate this to the expression of inflammatory biomarkers. At weeks 15 and 25, all experimental diets were equally effective in reducing NMBA-induced esophageal tumorigenesis, as well as in reducing the expression of pentraxin-3 (PTX3), a cytokine produced by peripheral blood mononuclear cells in response to interleukin (IL)-1β and TNF-α. All experimental diets were also active at reducing tumorigenesis at week 35; however, the BRB diet was significantly more effective than the AC and PCA diets. Furthermore, all experimental diets inhibited inflammation in the esophagus via reducing biomarker (COX-2, iNOS, p-NF-κB, and sEH) and cytokine (PTX3) expression. Overall, our data suggest that BRBs, their component ACs, and PCA inhibit NMBA-induced esophageal tumorigenesis, at least in part, by their inhibitory effects on genes associated with inflammation.
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Affiliation(s)
- Daniel S Peiffer
- Authors' Affiliations: Departments of Medicine, Pathology, and Obstetrics and Gynecology, Medical College of Wisconsin Cancer Center; Agro BioSciences Inc., Milwaukee, Wisconsin; and Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota
| | - Noah P Zimmerman
- Authors' Affiliations: Departments of Medicine, Pathology, and Obstetrics and Gynecology, Medical College of Wisconsin Cancer Center; Agro BioSciences Inc., Milwaukee, Wisconsin; and Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota
| | - Li-Shu Wang
- Authors' Affiliations: Departments of Medicine, Pathology, and Obstetrics and Gynecology, Medical College of Wisconsin Cancer Center; Agro BioSciences Inc., Milwaukee, Wisconsin; and Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota
| | - Benjamin W S Ransom
- Authors' Affiliations: Departments of Medicine, Pathology, and Obstetrics and Gynecology, Medical College of Wisconsin Cancer Center; Agro BioSciences Inc., Milwaukee, Wisconsin; and Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota
| | - Steven G Carmella
- Authors' Affiliations: Departments of Medicine, Pathology, and Obstetrics and Gynecology, Medical College of Wisconsin Cancer Center; Agro BioSciences Inc., Milwaukee, Wisconsin; and Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota
| | - Chieh-Ti Kuo
- Authors' Affiliations: Departments of Medicine, Pathology, and Obstetrics and Gynecology, Medical College of Wisconsin Cancer Center; Agro BioSciences Inc., Milwaukee, Wisconsin; and Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota
| | - Jibran Siddiqui
- Authors' Affiliations: Departments of Medicine, Pathology, and Obstetrics and Gynecology, Medical College of Wisconsin Cancer Center; Agro BioSciences Inc., Milwaukee, Wisconsin; and Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota
| | - Jo-Hsin Chen
- Authors' Affiliations: Departments of Medicine, Pathology, and Obstetrics and Gynecology, Medical College of Wisconsin Cancer Center; Agro BioSciences Inc., Milwaukee, Wisconsin; and Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota
| | - Kiyoko Oshima
- Authors' Affiliations: Departments of Medicine, Pathology, and Obstetrics and Gynecology, Medical College of Wisconsin Cancer Center; Agro BioSciences Inc., Milwaukee, Wisconsin; and Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota
| | - Yi-Wen Huang
- Authors' Affiliations: Departments of Medicine, Pathology, and Obstetrics and Gynecology, Medical College of Wisconsin Cancer Center; Agro BioSciences Inc., Milwaukee, Wisconsin; and Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota
| | - Stephen S Hecht
- Authors' Affiliations: Departments of Medicine, Pathology, and Obstetrics and Gynecology, Medical College of Wisconsin Cancer Center; Agro BioSciences Inc., Milwaukee, Wisconsin; and Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota
| | - Gary D Stoner
- Authors' Affiliations: Departments of Medicine, Pathology, and Obstetrics and Gynecology, Medical College of Wisconsin Cancer Center; Agro BioSciences Inc., Milwaukee, Wisconsin; and Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota
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Chemoprotection Against Cancer by Isothiocyanates: A Focus on the Animal Models and the Protective Mechanisms. NATURAL PRODUCTS IN CANCER PREVENTION AND THERAPY 2012; 329:179-201. [DOI: 10.1007/128_2012_337] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Abstract
Esophageal squamous cell carcinoma (SCC) is responsible for about one-seventh of all cancer-related mortality worldwide. This disease has a multifactorial etiology involving numerous environmental, genetic, and dietary factors. The 5-year survival from esophageal SCC is poor because the disease has usually metastasized at the time of diagnosis. Clinical investigations have shown that primary chemoprevention of this disease is feasible; however, only a few agents have shown efficacy. The Fischer 344 (F-344) rat model of esophageal SCC has been used extensively to investigate the pathophysiology of the disease and to identify chemopreventive agents of potential use in human trials. Multiple compounds that inhibit tumor initiation and/or tumor progression in the rat model have been identified. These include the isothiocyanates which inhibit the metabolic activation of esophageal carcinogens and agents that inhibit the progression of dysplastic lesions to cancer including inhibitors of inducible nitric oxide synthase (iNOS), cyclooxygenase-2 (COX-2), vascular endothelial growth factor (VEGF), and c-Jun (a component of activator protein-1 [AP-1]). The present review deals principally with the use of berry preparations for the prevention of esophageal SCC in rodents, and summarizes recent data from a human clinical trial in China. Our results suggest that the use of berry preparations might be a practical approach to the prevention of esophageal SCC in China and, potentially, other high risk regions for this disease.
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Fimognari C, Turrini E, Ferruzzi L, Lenzi M, Hrelia P. Natural isothiocyanates: genotoxic potential versus chemoprevention. Mutat Res 2011; 750:107-131. [PMID: 22178957 DOI: 10.1016/j.mrrev.2011.12.001] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2011] [Revised: 12/01/2011] [Accepted: 12/02/2011] [Indexed: 12/12/2022]
Abstract
Isothiocyanates, occurring in many dietary cruciferous vegetables, show interesting chemopreventive activities against several chronic-degenerative diseases, including cancer, cardiovascular diseases, neurodegeneration, diabetes. The electrophilic carbon residue in the isothiocyanate moiety reacts with biological nucleophiles and modification of proteins is recognized as a key mechanism underlying the biological activity of isothiocyanates. The nuclear factor-erythroid-2-related factor 2 system, which orchestrates the expression of a wide array of antioxidant genes, plays a role in the protective effect of isothiocyanates against almost all the pathological conditions reported above. Recent emerging findings suggest a further common mechanism. Chronic inflammation plays a central role in many human diseases and isothiocyanates inhibit the activity of many inflammation components, suppress cyclooxygenase 2, and irreversibly inactivate the macrophage migration inhibitory factor. Due to their electrophilic reactivity, some isothiocyanates are able to form adducts with DNA and induce gene mutations and chromosomal aberrations. DNA damage has been demonstrated to be involved in the pathogenesis of various chronic-degenerative diseases of epidemiological relevance. Thus, the genotoxicity of the isothiocyanates should be carefully considered. In addition, the dose-response relationship for genotoxic compounds does not suggest evidence of a threshold. Thus, chemicals that are genotoxic pose a greater potential risk to humans than non-genotoxic compounds. Dietary consumption levels of isothiocyanates appear to be several orders of magnitude lower than the doses used in the genotoxicity studies and thus it is highly unlikely that such toxicities would occur in humans. However, the beneficial properties of isothiocyanates stimulated an increase of dietary supplements and functional foods with highly enriched isothiocyanate concentrations on the market. Whether such concentrations may exert a potential health risk cannot be excluded with certainty and an accurate evaluation of the toxicological profile of isothiocyanates should be prompted before any major increase in their consumption be recommended or their clinical use suggested.
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Affiliation(s)
- Carmela Fimognari
- Department of Pharmacology, University of Bologna, via Irnerio 48, 40126 Bologna, Italy.
| | - Eleonora Turrini
- Department of Pharmacology, University of Bologna, via Irnerio 48, 40126 Bologna, Italy
| | - Lorenzo Ferruzzi
- Department of Pharmacology, University of Bologna, via Irnerio 48, 40126 Bologna, Italy
| | - Monia Lenzi
- Department of Pharmacology, University of Bologna, via Irnerio 48, 40126 Bologna, Italy
| | - Patrizia Hrelia
- Department of Pharmacology, University of Bologna, via Irnerio 48, 40126 Bologna, Italy
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Aiyer HS, Li Y, Losso JN, Gao C, Schiffman SC, Slone SP, Martin RCG. Effect of freeze-dried berries on the development of reflux-induced esophageal adenocarcinoma. Nutr Cancer 2011; 63:1256-62. [PMID: 22043833 DOI: 10.1080/01635581.2011.609307] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The incidence of esophageal adenocarcinoma in humans is increasing more rapidly than any other malignancy in the United States. Animal studies have demonstrated the efficacy of freeze-dried berry supplementation on carcinogen-induced esophageal squamous cell carcinoma in rats; however, no such studies have been done in esophagoduodenal anastomosis (EDA), an animal model for reflux-induced esophageal adenocarcinoma (EAC) development. Eight-week-old male Sprague-Dawley rats were randomized into 3 groups: EDA + control diet (EDA-CD; n = 10); EDA + 2.5% black raspberry diet (EDA-BRB; n = 11) and EDA + 2.5% blueberry diet (EDA-BB; n = 12). After 2 wk of feeding the respective diets, the rats underwent EDA surgery to induce gastroesophageal reflux and then continued the diet. Measurement of feed intake suggested that all EDA-operated animals had lower feed intake starting at 10 wk after surgery and this was significant close to termination at 24 wk. There were no significant differences in either reflux esophagitis (RE), intestinal metaplasia (IM) (70% in CD, 64% in BRB, and 66% in BB; P = 0.1) or EAC incidence (30% for CD, 34% for BRB, and 25% for BB; P = 0.2) with supplementation. Berry diets did not alter COX-2 levels, but BB diet significantly reduced MnSOD levels (1.23 ± 0.2) compared to control diet (2.05 ± 0.14; P < 0.05). We conclude that a dietary supplementation of freeze-dried BRB and BB at 2.5% (w/w) was not effective in the prevention of reflux-induced esophageal adenocarcinoma in this EDA animal model.
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Affiliation(s)
- Harini S Aiyer
- Division of Surgical Oncology, Department of Surgery, University of Louisville School of Medicine, Louisville, Kentucky, USA
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d'Avenia M, Rosati A, Belisario MA, Torino M, Torino G, Turco MC, Pascale M. The expression of the pro-apoptotic gene Air is inducible in human pancreatic adenocarcinoma cells. J Cell Physiol 2011; 226:2207-12. [DOI: 10.1002/jcp.22736] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Wang LS, Dombkowski AA, Seguin C, Rocha C, Cukovic D, Mukundan A, Henry C, Stoner GD. Mechanistic basis for the chemopreventive effects of black raspberries at a late stage of rat esophageal carcinogenesis. Mol Carcinog 2011; 50:291-300. [PMID: 21465577 DOI: 10.1002/mc.20634] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The present study used a postinitiation protocol to investigate molecular mechanisms by which black raspberries (BRBs) influence the late stages of N-nitrosomethylbenzylamine (NMBA)-induced esophageal tumorigenesis in rats. F344 rats were injected with NMBA and then fed either control diet or a diet containing 5% BRB powder. Control rats were injected with DMSO/water (20:80), the vehicle for NMBA. Esophagi from control, NMBA- and NMBA + BRB-treated rats were collected at 35 wk for histopathological, molecular, and immunohistochemical analyses. Treatment with 5% BRBs reduced the number of dysplastic lesions and the number and size of esophageal papillomas in NMBA-treated rats. When compared to esophagi from control rats, NMBA treatment led to the differential expression of 4807 genes in preneoplastic esophagus (PE) and 17 846 genes in esophageal papillomas. Dietary BRBs modulated 626 of the 4807 differentially expressed genes in PE and 625 of the 17 846 differentially expressed genes in esophageal papillomas towards normal levels of expression. In both PE and in papillomas, BRBs modulated the mRNA expression of genes associated with carbohydrate and lipid metabolism, cell proliferation and death, and inflammation. In these same tissues, BRBs modulated the expression of proteins associated with proliferation, apoptosis, inflammation, angiogenesis, and both cyclooxygenase and lipoxygenase pathways of arachidonic acid metabolism. Interestingly, matrix metalloproteinases involved in tissue invasion and metastasis, and proteins associated with cell-cell adhesion, were also modulated by BRBs. This is the first report of the effects of berries on the expression of genes associated with the late stages of rat esophageal carcinogenesis.
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Affiliation(s)
- Li-Shu Wang
- Ohio State University Comprehensive Cancer Center, Columbus, Ohio 43240, USA
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God J, Tate PL, Larcom LL. Red raspberries have antioxidant effects that play a minor role in the killing of stomach and colon cancer cells. Nutr Res 2011; 30:777-82. [PMID: 21130297 DOI: 10.1016/j.nutres.2010.10.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2010] [Revised: 10/07/2010] [Accepted: 10/08/2010] [Indexed: 12/31/2022]
Abstract
Berries and berry extracts possess properties that make them important in the prevention of cancer. The high antioxidant levels of these extracts play a role, but components of the berries can have other effects on cell replication and survival. We chose to test the hypothesis that (i) although the antioxidant capacity of raspberry extracts is important for inhibiting the proliferation of tumor cells, other characteristics of the berry extracts are responsible for a major part of their antiproliferative activity, and that (ii) the relative importance of the antioxidant effect can depend on the cell type being studied. The aim of this study was to assess the relative roles of low pH and high antioxidant levels in the killing of 3 cell types by an aqueous extract from Meeker red raspberries. Stomach, colon, and breast cancer cells were treated with berry extract and with HCl and ascorbic acid solutions of the same pH. A dilution of 7.5% ascorbic acid solution, of the same pH and slightly higher antioxidant concentration than the berry extract, killed less than 10% of the stomach and colon cancer cells. In contrast, the berry extract at this same dilution killed more than 90% of these cells. Antioxidants played a more significant role in the killing of breast cancer cells, however. For these cells, approximately 50% of the killing could be attributed to antioxidant effects. We conclude that the antioxidant effect plays a minor role in the killing of 2 gastrointestinal cell types, but its role in inactivating a breast cancer cell line is much more significant. No evidence of apoptosis was observed, and caspase activation did not contribute to cell killing by the extract.
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Affiliation(s)
- Jason God
- Department of Nursing, Clemson University, Clemson, SC 29634, USA
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Powolny AA, Bommareddy A, Hahm ER, Normolle DP, Beumer JH, Nelson JB, Singh SV. Chemopreventative potential of the cruciferous vegetable constituent phenethyl isothiocyanate in a mouse model of prostate cancer. J Natl Cancer Inst 2011; 103:571-84. [PMID: 21330634 DOI: 10.1093/jnci/djr029] [Citation(s) in RCA: 79] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
BACKGROUND This study was undertaken to determine the chemopreventative efficacy of phenethyl isothiocyanate (PEITC), a bioactive constituent of many edible cruciferous vegetables, in a mouse model of prostate cancer, and to identify potential biomarker(s) associated with PEITC response. METHODS The chemopreventative activity of dietary PEITC was investigated in Transgenic Adenocarcinoma of Mouse Prostate mice that were fed a control diet or one containing 3 μmol PEITC/g (n = 21 mice per group) for 19 weeks. Dorsolateral prostate tissue sections were stained with hematoxylin and eosin for histopathologic evaluations and subjected to immunohistochemistry for analysis of cell proliferation (Ki-67 expression), autophagy (p62 and LC3 protein expression), and E-cadherin expression. Autophagosomes were visualized by transmission electron microscopy. Apoptotic bodies were detected by terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling. Plasma proteomics was performed by two-dimensional gel electrophoresis followed by mass spectrometry to identify potential biomarkers of PEITC activity. All statistical tests were two-sided. RESULTS Administration of PEITC (3 μmol/g diet) decreased incidence (PEITC diet vs control diet, mean = 21.65 vs 57.58%, difference = -35.93%, 95% confidence interval = -45.48% to -13.10%, P = .04) as well as burden (affected area) (PEITC diet vs control diet, mean = 18.53% vs 45.01%, difference = -26.48%, 95% confidence interval = -49.78% to -3.19%, P = .02) of poorly differentiated tumors in the dorsolateral prostate of transgenic mice compared with control mice, with no toxic effects. PEITC-mediated inhibition of prostate carcinogenesis was associated with induction of autophagy and overexpression of E-cadherin in the dorsolateral prostate. However, PEITC treatment was not associated with a decrease in cellular proliferation, apoptosis induction, or inhibition of neoangiogenesis. Plasma proteomics revealed distinct changes in the expression of several proteins (eg, suppression of clusterin protein) in the PEITC-treated mice compared with control mice. CONCLUSIONS In this transgenic model, dietary PEITC suppressed prostate cancer progression by induction of autophagic cell death. Potential biomarkers to assess the response to PEITC treatment in plasma were identified.
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Affiliation(s)
- Anna A Powolny
- Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
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21
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Montrose DC, Horelik NA, Madigan JP, Stoner GD, Wang LS, Bruno RS, Park HJ, Giardina C, Rosenberg DW. Anti-inflammatory effects of freeze-dried black raspberry powder in ulcerative colitis. Carcinogenesis 2010; 32:343-50. [PMID: 21098643 DOI: 10.1093/carcin/bgq248] [Citation(s) in RCA: 105] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Ulcerative colitis (UC) is a chronic inflammatory disease of the colonic mucosa that can dramatically increase the risk of colon cancers. In the present study, we evaluated the effects of a dietary intervention of freeze-dried black raspberries (BRB), a natural food product with antioxidant and anti-inflammatory bioactivities, on disease severity in an experimental mouse model of UC using 3% dextran sodium sulfate (DSS). C57BL/6J mice were fed either a control diet or a diet containing BRB (5 or 10%) for 7-14 days and then the extent of colonic injury was assessed. Dietary BRB markedly reduced DSS-induced acute injury to the colonic epithelium. This protection included better maintenance of body mass and reductions in colonic shortening and ulceration. BRB treatment, however, did not affect the levels of either plasma nitric oxide or colon malondialdehyde, biomarkers of oxidative stress that are otherwise increased by DSS-induced colonic injury. BRB treatment for up to 7 days suppressed tissue levels of several key pro-inflammatory cytokines, including tumor necrosis factor α and interleukin 1β. Further examination of the inflammatory response by western blot analysis revealed that 7 day BRB treatment reduced the levels of phospho-IκBα within the colonic tissue. Colonic cyclooxygenase 2 levels were also dramatically suppressed by BRB treatment, with a concomitant decrease in the plasma prostaglandin E₂ (276 versus 34 ng/ml). These findings demonstrate a potent anti-inflammatory effect of BRB during DSS-induced colonic injury, supporting its possible therapeutic or preventive role in the pathogenesis of UC and related neoplastic events.
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Affiliation(s)
- David C Montrose
- Center for Molecular Medicine and Colon Cancer Prevention Program, University of Connecticut Health Center, Farmington, CT 06030, USA
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22
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Bi X, Fang W, Wang LS, Stoner GD, Yang W. Black raspberries inhibit intestinal tumorigenesis in apc1638+/- and Muc2-/- mouse models of colorectal cancer. Cancer Prev Res (Phila) 2010; 3:1443-50. [PMID: 21045162 PMCID: PMC3019096 DOI: 10.1158/1940-6207.capr-10-0124] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Freeze-dried black raspberries (BRB) produce chemopreventive effects in a rat model of colon carcinogenesis; however, the mechanisms of inhibition were not determined. Herein, we used two mouse models of human colorectal cancer to determine if dietary BRBs would inhibit colorectal tumor development and to investigate the underlying mechanisms. We found that a 12-week feeding of BRBs significantly inhibited intestinal tumor formation in both models; reducing tumor incidence by 45% and tumor multiplicity by 60% in Apc1638+/- mice and tumor incidence and multiplicity by 50% in Muc2-/- mice. Mechanistic studies revealed that BRBs inhibit tumor development in Apc1638+/- mice by suppressing β-catenin signaling and in Muc2-/- mice by reducing chronic inflammation. Intestinal cell proliferation was inhibited by BRBs in both animal models; however, the extent of mucus cell differentiation was not changed in either model. Collectively, our data suggest that BRBs are highly effective in preventing intestinal tumor development in both Apc1638+/- and Muc2-/- mice through targeting multiple signaling pathways.
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Affiliation(s)
- Xiuli Bi
- Department of Pathology, University of Illinois at Chicago, Chicago, IL 60612
| | - Wenfeng Fang
- Department of Pathology, University of Illinois at Chicago, Chicago, IL 60612
- The Open Laboratory for Overseas Scientists and Department of Oncology, College of Medicine, Wuhan University, Wuhan, China
| | - Li-Shu Wang
- Department of Internal Medicine and Comprehensive Cancer Center, The Ohio State University College of Medicine, Columbus, OH 43240
| | - Gary D. Stoner
- Department of Internal Medicine and Comprehensive Cancer Center, The Ohio State University College of Medicine, Columbus, OH 43240
| | - Wancai Yang
- Department of Pathology, University of Illinois at Chicago, Chicago, IL 60612
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Vaid M, Sharma SD, Katiyar SK. Proanthocyanidins inhibit photocarcinogenesis through enhancement of DNA repair and xeroderma pigmentosum group A-dependent mechanism. Cancer Prev Res (Phila) 2010; 3:1621-9. [PMID: 20947490 DOI: 10.1158/1940-6207.capr-10-0137] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Dietary grape seed proanthocyanidins (GSP) inhibit photocarcinogenesis in mice; however, the molecular mechanisms underlying this effect have not been fully elucidated. As ultraviolet B (UVB)-induced DNA damage in the form of cyclobutane pyrimidine dimers (CPDs) has been implicated in skin cancer risk, we studied whether dietary GSPs enhance repair of UVB-induced DNA damage and, if so, what is the potential mechanism? Supplementation of GSPs (0.5%, w/w) with AIN76A control diet significantly reduced the levels of CPD(+) cells in UVB-exposed mouse skin; however, GSPs did not significantly reduce UVB-induced CPD(+) cells in the skin of interleukin-12p40 (IL-12) knockout (KO) mice, suggesting that IL-12 is required for the repair of CPDs by GSPs. Using IL-12 KO mice and their wild-type counterparts and standard photocarcinogenesis protocol, we found that supplementation of control diet with GSPs (0.5%, w/w) significantly reduced UVB-induced skin tumor development in wild-type mice, which was associated with the elevated mRNA levels of nucleotide excision repair genes, such as XPA, XPC, DDB2, and RPA1; however, this effect of GSPs was less pronounced in IL-12 KO mice. Cytostaining analysis revealed that GSPs repaired UV-induced CPD(+) cells in xeroderma pigmentosum complementation group A (XPA)-proficient fibroblasts from a healthy individual but did not repair in XPA-deficient fibroblasts from XPA patients. Furthermore, GSPs enhance nuclear translocation of XPA and enhanced its interactions with other DNA repair protein ERCC1. Together, our findings reveal that prevention of photocarcinogenesis by GSPs is mediated through enhanced DNA repair in epidermal cells by IL-12- and XPA-dependent mechanisms.
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Affiliation(s)
- Mudit Vaid
- Department of Dermatology, University of Alabama at Birmingham, Birmingham, AL 35294, USA
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Aiyer HS, Li Y, Liu QH, Reuter N, Martin RCG. Dietary freeze-dried black raspberry's effect on cellular antioxidant status during reflux-induced esophagitis in rats. Nutrition 2010; 27:182-7. [PMID: 20538426 DOI: 10.1016/j.nut.2010.01.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2009] [Revised: 12/30/2009] [Accepted: 01/06/2010] [Indexed: 01/29/2023]
Abstract
INTRODUCTION Esophageal cancer consists of two distinct types, esophageal adenocarcinoma (EAC) and squamous cell carcinoma, both of which differ significantly in their etiology. Freeze-dried black raspberry (BRB) has been consistent in its ability to modulate the biomarkers and reduce the incidence of carcinogen-induced squamous cell carcinoma in rats. In our previous studies in the esophagoduodenal anastomosis (EDA) model, we have shown that the early modulation of manganese superoxide dismutase (MnSOD) significantly correlates with the development of reflux-induced EAC in rats. In this study we looked at the short-term effects of a BRB-supplemented diet on the modulation of antioxidant enzymes in reflux-induced esophagitis. METHODS Male SD rats (8 wk old; n = 3-5) were randomized into three groups--sham-operated, fed control AIN-93M diet (SH-CD), EDA operated and fed either control diet (EDA-CD) or 2.5% (w/w) BRB diet (EDA-BRB). The effect of both reflux and dietary supplementation was analyzed 2 and 4 wk after EDA surgery. RESULTS Animals in the EDA groups had significantly lower weight gain and diet intake compared to SH-CD (P < 0.05). The sham-operated animals received an average esophagitis score of 0.1 ± 0.1; this increased significantly in EDA-CD animals to 1.8 ± 0.14 (P < 0.001 versus SH-CD) and in EDA-BRB group to 1.7 ± 0.06 (P < 0.001 versus SH-CD), with BE changes also present. However, dietary supplementation of BRB did not alter or ameliorate the grade of esophagitis or the induction of BE. BRB diet caused a 43% increase in MnSOD levels compared to EDA-CD (0.73 ± 0.16; P = 0.09); however, this effect was not statistically significant and at 4 wk, EDA-CD (0.58 ± 0.12) showed an increase in MnSOD expression compared to SH-CD (0.34 ± 0.01). CONCLUSIONS In conclusion, our data suggest that dietary BRB does not increase the levels of cellular antioxidant enzymes or reduce the levels of lipid peroxidation compared to a control diet, in a short-term study of gastroesophageal reflux induction in the EDA animal model. However, it remains to be tested whether this is indicative of its ineffectiveness to inhibit reflux-induced EAC incidence over the long term.
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Affiliation(s)
- Harini S Aiyer
- Department of Surgery, Division of Surgical Oncology, University of Louisville School of Medicine, Louisville, Kentucky, USA
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Xiao D, Singh SV. p66Shc is indispensable for phenethyl isothiocyanate-induced apoptosis in human prostate cancer cells. Cancer Res 2010; 70:3150-8. [PMID: 20354186 DOI: 10.1158/0008-5472.can-09-4451] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Naturally occurring phenethyl isothiocyanate (PEITC) selectively inhibits growth of cancer cells by causing apoptosis, but the mechanism of cell death induction is not fully understood. We now show, for the first time, that growth factor adapter protein p66(Shc) is indispensable for PEITC-induced apoptosis. Mouse embryonic fibroblasts derived from p66(Shc) knockout mice were significantly more resistant to PEITC-mediated growth inhibition, cytoplasmic histone-associated apoptotic DNA fragmentation, and caspase-3 activation compared with wild-type fibroblasts. The PEITC treatment resulted in induction as well as increased Ser(36) phosphorylation of p66(Shc) in PC-3 and LNCaP human prostate cancer cells. Knockdown of p66(Shc) protein conferred significant protection against PEITC-mediated cytoplasmic histone-associated DNA fragmentation as well as production of reactive oxygen species in both PC-3 and LNCaP cells. The PEITC-treated PC-3 and LNCaP cells exhibited increased binding of p66(Shc) with prolyl isomerase Pin1, a protein implicated in translocation of p66(Shc) to mitochondria. Consistent with these results, treatment of PC-3 cells with PEITC resulted in translocation of p66(Shc) to the mitochondria as judged by immunoblotting using cytosolic and mitochondrial fractions and immunofluorescence microscopy. Growth suppression and apoptosis induction in tumor xenografts in vivo by oral administration of PEITC to the PC-3 tumor-bearing male athymic mice were accompanied by statistically significant increase in the level of Ser(36)-phosphorylated p66(Shc). Collectively, these results provide novel insight into the critical role of p66(Shc) in regulation of PEITC-induced apoptotic cell death in human prostate cancer cells.
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Affiliation(s)
- Dong Xiao
- Department of Pharmacology and Chemical Biology, and University of Pittsburgh Cancer Institute, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15213, USA
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Wyzgoski FJ, Paudel L, Rinaldi PL, Reese RN, Ozgen M, Tulio AZ, Miller AR, Scheerens JC, Hardy JK. Modeling relationships among active components in black raspberry (Rubus occidentalis L.) fruit extracts using high-resolution (1)H nuclear magnetic resonance (NMR) spectroscopy and multivariate statistical analysis. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2010; 58:3407-14. [PMID: 20192269 DOI: 10.1021/jf904401j] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
A process was developed to ascertain the bioactive components of black raspberry (Rubus occidentalis L.) fruit extracts by relating chemical constituents determined by high-field nuclear magnetic resonance (NMR) spectroscopy to biological responses using partial least-squares regression analysis. To validate our approach, we outlined relationships between phenolic signals in NMR spectra and chemical data for total monomeric anthocyanin (TMA) content and antioxidant capacity by the ferric-reducing antioxidant power (FRAP) and 2,2-diphenyl-1-picrylhydrazyl (DPPH) assays. Anthocyanins, cyanidin 3-O-rutinoside (Cy 3-rut), cyanidin 3-O-(2(G))-xylosylrutinoside (Cy 3-xylrut), and cyanidin 3-O-glucoside (Cy 3-glc), were significant contributors to the variability in assay results, with the two most important NMR bins corresponding to the methyl peaks in Cy 3-rut (6''') and/or Cy 3-xylrut (6(IV)). Many statistically important bins were common among assay models, but differences in structure-activity relationships resulted in changes in bin ranking. The specificity of these results supported the application of the process to investigate relationships among health-beneficial natural products and potential biological activity.
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Affiliation(s)
- Faith J Wyzgoski
- Department of Chemistry, The Ohio State University-Mansfield, Mansfield, Ohio 44906, USA.
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Stoner GD, Wang LS, Seguin C, Rocha C, Stoner K, Chiu S, Kinghorn AD. Multiple berry types prevent N-nitrosomethylbenzylamine-induced esophageal cancer in rats. Pharm Res 2010; 27:1138-45. [PMID: 20232121 DOI: 10.1007/s11095-010-0102-1] [Citation(s) in RCA: 81] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2010] [Accepted: 02/23/2010] [Indexed: 01/19/2023]
Abstract
PURPOSE The present study compared the ability of different berry types to prevent chemically-induced tumorigenesis in the rat esophagus. We also determined if berries influence the levels of inflammatory cytokines in the serum of carcinogen-treated rats. METHODS Rats were treated with the carcinogen N-nitrosomethylbenzylamine (NMBA) for 5 weeks, then placed on diets containing 5% of either black or red raspberries, strawberries, blueberries, noni, açaí or wolfberry until the end of the study. The effects of the berries on tumor incidence, multiplicity and size were determined, as well as their effects on the levels of selected inflammatory cytokines in serum. RESULTS All berry types were about equally effective in inhibiting NMBA-induced tumorigenesis in the rat esophagus. They also reduced the levels of the serum cytokines, interleukin 5 (IL-5) and GRO/KC, the rat homologue for human interleukin-8 (IL-8), and this was associated with increased serum antioxidant capacity. CONCLUSIONS Seven berry types were about equally capable of inhibiting tumor progression in the rat esophagus in spite of known differences in levels of anthocyanins and ellagitannins. Serum levels of IL-5 and GRO/KC (IL-8) may be predictive of the inhibitory effect of chemopreventive agents on rat esophageal carcinogenesis.
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Affiliation(s)
- Gary D Stoner
- Department of Internal Medicine and Comprehensive Cancer Center, College of Medicine, The Ohio State University, Columbus, Ohio 43210, USA.
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Wu X, Rahal O, Kang J, Till SR, Prior RL, Simmen RCM. In utero and lactational exposure to blueberry via maternal diet promotes mammary epithelial differentiation in prepubescent female rats. Nutr Res 2010; 29:802-11. [PMID: 19932869 DOI: 10.1016/j.nutres.2009.10.015] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2009] [Revised: 10/14/2009] [Accepted: 10/15/2009] [Indexed: 01/18/2023]
Abstract
Early developmental events influence the fine tuning of later susceptibility to adult diseases. Diet is a determinant of breast cancer risk, and our previous studies showed that diet-mediated changes in transcriptional programs promote early mammary gland differentiation. Although consumption of fruits is considered to elicit multiple health benefits, little is known on whether associated bioactive components modify the early differentiation program in developing mammary glands. Here, we evaluated the hypothesis that early exposure (in utero and lactational) to blueberry through maternal diet enhances mammary epithelial differentiation in female offspring. Pregnant Sprague-Dawley rats beginning at gestation day 4 were fed American Institute of Nutrition-based diets containing casein and whole blueberry powders added to casein at 2.5%, 5.0%, and 10% weight/weight. Female pups at weaning were evaluated for growth and mammary tissue parameters. Blueberry at 5% dose increased body and adipose fat weights, relative to the other diets. Mammary branch density and terminal end bud size were highest for the 5% blueberry group, whereas terminal end bud numbers were not affected by all diets. Mammary ductal epithelial cells of the 5% blueberry group had lower nuclear phosphorylated histone 3 and higher nuclear tumor suppressor phosphatase and tensin homolog deleted in chromosome 10 (PTEN) levels than the casein group. Although sera of both diet groups had similar antioxidant capacity, 5% blueberry sera elicited higher nuclear PTEN accumulation in human MCF-10A mammary epithelial cells. Our studies identify developing mammary glands as early targets of blueberry-associated bioactive components, possibly through systemic effects on epithelial PTEN signaling.
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Affiliation(s)
- Xianli Wu
- Department of Physiology and Biophysics, University of Arkansas for Medical Sciences, Little Rock, AR 72202, USA
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Cheung KL, Khor TO, Huang MT, Kong AN. Differential in vivo mechanism of chemoprevention of tumor formation in azoxymethane/dextran sodium sulfate mice by PEITC and DBM. Carcinogenesis 2009; 31:880-5. [PMID: 19959557 DOI: 10.1093/carcin/bgp285] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Previously, phenethyl isothiocyanate (PEITC) and dibenzoylmethane (DBM) had been shown to inhibit intestinal carcinogenesis in Apc(Min/+) mice. In this study, we investigated the chemopreventive efficacy of PEITC and DBM in the azoxymethane (AOM)-initiated and dextran sodium sulfate (DSS)-promoted colon cancer mouse model and to compare their potential in vivo mechanisms leading to chemoprevention. The mice were fed with diet supplemented with 0.05% PEITC or 1% DBM before or after AOM initiation. Our results showed that AOM/DSS mice fed with PEITC- or DBM-supplemented diet had lower tumor incidence, lower colon tumor multiplicities and smaller polyps as compared with mice fed with the standard AIN-76A diet. PEITC was effective even after AOM initiation, whereas DBM was not as effective when fed after AOM initiation. Hematoxylin and eosin staining showed that mice fed with PEITC or DBM had attenuated loss of crypt, a marker of inflammation. To examine potential in vivo mechanisms involved in chemoprevention, western blotting was performed and showed that inhibition of growth of adenomas by PEITC was associated with an increase of apoptosis (increased cleaved caspase-3 and-7) and cell cycle arrest (increased p21). In contrast DBM's effect on cell cycle arrest and apoptosis markers was not as substantial as PEITC. Instead, DBM showed increased induction of NF-E2-related factor-2 (Nrf2) transcription factor and phase II detoxifying enzymes, which appears to correlate with in vitro cell lines results that DBM is a more potent Nrf2 activator than PEITC. In summary, our present study shows that PEITC and DBM are potent natural dietary compounds for chemoprevention of colon cancer induced by AOM/DSS and appears to be associated with different in vivo mechanism of actions. PEITC's chemopreventive effect appears to be due to induction of apoptosis and cell cycle arrest, whereas DBM's effect is due to prevention of AOM initiation via induction of Nrf2 and phase II detoxifying enzymes.
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Affiliation(s)
- Ka Lung Cheung
- Graduate Program in Pharmaceutical Science, Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, 160 Frelinghuysen Road, Piscataway, NJ 08854, USA
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Ling Y, Ren C, Mallery SR, Ugalde CM, Pei P, Saradhi UVRV, Stoner GD, Chan KK, Liu Z. A rapid and sensitive LC-MS/MS method for quantification of four anthocyanins and its application in a clinical pharmacology study of a bioadhesive black raspberry gel. J Chromatogr B Analyt Technol Biomed Life Sci 2009; 877:4027-34. [PMID: 19896910 DOI: 10.1016/j.jchromb.2009.10.026] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2009] [Revised: 10/20/2009] [Accepted: 10/22/2009] [Indexed: 01/17/2023]
Abstract
Cyanidin 3-glucoside (C3GLU), cyanidin 3-rutinoside (C3RUT), cyanidin 3-sambubioside (C3SAM) and cyanidin 3-(2(G)-xylosyl) rutinoside (C3XRUT) are the four constituent black raspberry anthocyanins that contribute significantly to the chemopreventive effects of freeze-dried black raspberries (FBR). A highly sensitive and specific LC-MS/MS assay was developed and validated to simultaneously quantify these four FBR anthocyanins in human saliva, plasma and oral tissue homogenates. In saliva, the lower limit of quantification (LLOQ) for these anthocyanins was 1.0 ng/mL. The within-run and between-run coefficients of variations (CVs) at the quality control concentrations (1.0, 5.0, 50 and 500 ng/mL) were all <12%, except for C3SAM and C3RUT at the LLOQ, which showed a within-run CV of 18.3% and between-run CV of 16.0%, respectively. The accuracy values ranged from 87.5 to 110%. In plasma, the LLOQ for C3GLU and C3RUT was 1.0 ng/mL and for C3SAM 5.0 ng/mL. The CVs at the above concentrations were <15%, except for C3GLU at the LLOQ, which showed the between-run CV of 16.9%. The accuracy values ranged from 90.7% to 112.7% except for C3GLU at the LLOQ, which showed 119.3%. In tissue homogenates, the LLOQ for C3GLU and C3RUT was 2.0 ng/mL, and C3SAM 5.0 ng/mL. The CVs and accuracy values at concentrations (2.0, 5.0, 50 and 500 ng/mL) were similar to those in human plasma. This assay was subsequently used in a pilot pharmacology study to evaluate the effects of topical application of a 10% (w/w) FBR bioadhesive gel to selected mucosal sites in the posterior mandibular gingiva. Measurable saliva and tissue levels of the FBR anthocyanins confirmed that gel-delivered anthocyanins are readily distributed to saliva and easily penetrate human oral mucosa.
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Affiliation(s)
- Yonghua Ling
- College of Pharmacy, The Ohio State University, Columbus, OH 43210, USA
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Chen G, Izzo J, Demizu Y, Wang F, Guha S, Wu X, Hung MC, Ajani JA, Huang P. Different redox states in malignant and nonmalignant esophageal epithelial cells and differential cytotoxic responses to bile acid and honokiol. Antioxid Redox Signal 2009; 11:1083-95. [PMID: 19187006 PMCID: PMC2842128 DOI: 10.1089/ars.2008.2321] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2008] [Revised: 01/09/2009] [Accepted: 01/11/2009] [Indexed: 12/25/2022]
Abstract
Esophageal adenocarcinoma (EAC) is a highly lethal cancer in western countries. EAC cells are believed to develop from esophageal epithelial cells through complex transformation processes involving inflammation and oxidative stress. The purpose of this study was to compare the redox status of malignant and nonmalignant esophageal epithelial cells and to test their responses to bile acid-induced oxidative stress and to treatment with honokiol (HNK), a natural product with anticancer activity. We demonstrated that esophageal adenocarcinoma cells express significantly higher levels of antioxidant molecules and were resistant to reactive oxygen species (ROS) stress induced by bile acid, but were sensitive to the cytotoxic action of HNK. Mechanistic study showed that HNK caused cancer cell death by disruption of mitochondrial transmembrane potential and was correlated with cyclophilin D (CypD) expression. Inhibition of CypD by cyclosporin A or abrogation of its expression by siRNA significantly suppressed the cytotoxicity of HNK, suggesting that CypD may be a key molecule that mediates the cytotoxicity. Our study suggests that the high antioxidant capacity in EAC cells confers on them the ability to survive the oxidative microenvironment in the reflux esophagus, and that HNK is a promising compound to kill the transformed cells preferentially.
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Affiliation(s)
- Gang Chen
- Department of Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Julie Izzo
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Yusuke Demizu
- Department of Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Feng Wang
- Department of Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Sushovan Guha
- Department of Gastroenterology, Hepatology and Nutrition, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Xifeng Wu
- Department of Epidemiology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Mein-Chie Hung
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Jaffer A. Ajani
- Department GI Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Peng Huang
- Department of Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, Texas
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Thomasset S, Teller N, Cai H, Marko D, Berry DP, Steward WP, Gescher AJ. Do anthocyanins and anthocyanidins, cancer chemopreventive pigments in the diet, merit development as potential drugs? Cancer Chemother Pharmacol 2009; 64:201-11. [DOI: 10.1007/s00280-009-0976-y] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2009] [Accepted: 03/02/2009] [Indexed: 01/09/2023]
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Stoner GD. Foodstuffs for preventing cancer: the preclinical and clinical development of berries. Cancer Prev Res (Phila) 2009; 2:187-94. [PMID: 19258544 DOI: 10.1158/1940-6207.capr-08-0226] [Citation(s) in RCA: 110] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Laboratory research involving berries is a promising example of food-based cancer prevention. Berries contain many known chemopreventive agents such as anthocyanins and ellagitannins that can be greatly concentrated in freeze-dried berry powders. Based on our program of berry research, this commentary presents the first reported stepwise scheme for the preclinical and clinical development of foodstuffs for cancer prevention. Our preclinical work within this scheme includes promising approaches for assessing the chemopreventive potential of berry powder and berry extracts in preclinical model systems, for determining the mechanisms of action of these agents, and for identifying the active constituents in berries. The commentary also presents preliminary results of clinical trials in the oral cavity, esophagus, and colon using various formulations of freeze-dried berries. The relative merits of berry powders, extracts, or individual constituents (anthocyanins) for cancer prevention are also discussed.
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Affiliation(s)
- Gary D Stoner
- Department of Internal Medicine, The Ohio State University, Innovation Centre, 2001 Polaris Parkway, Columbus, Ohio 43240, USA.
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Nath J, Ghosh H, Yella R, Patel BK. Molecular Iodine Mediated Preparation of Isothiocyanates from Dithiocarbamic Acid Salts. European J Org Chem 2009. [DOI: 10.1002/ejoc.200801270] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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