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Onali T, Kivimäki A, Mauramo M, Salo T, Korpela R. Anticancer Effects of Lingonberry and Bilberry on Digestive Tract Cancers. Antioxidants (Basel) 2021; 10:antiox10060850. [PMID: 34073356 PMCID: PMC8228488 DOI: 10.3390/antiox10060850] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 05/17/2021] [Accepted: 05/21/2021] [Indexed: 12/17/2022] Open
Abstract
Wild berries are part of traditional Nordic diets and are a rich source of phytochemicals, such as polyphenols. Various berry treatments have shown to interfere with cancer progression in vitro and in vivo. Here, we systematically reviewed the anticancer effects of two Nordic wild berries of the Vaccinium genus, lingonberry (Vaccinium vitis-idaea) and bilberry (Vaccinium myrtillus), on digestive tract cancers. The review was conducted according to the PRISMA 2020 guidelines. Searches included four databases: PubMed, Scopus, Web of Science, and CAB abstracts. Publications not written in English, case-reports, reviews, and conference abstracts were excluded. Moreover, studies with only indirect markers of cancer risk or studies with single compounds not derived from lingonberry or bilberry were not included. Meta-analysis was not performed. The majority (21/26) of studies investigated bilberry and colorectal cancer. Experimental studies on colorectal cancer indicated that bilberry inhibited intestinal tumor formation and cancer cell growth. One uncontrolled pilot human study supported the inhibitory potential of bilberry on colorectal cancer cell proliferation. Data from all 10 lingonberry studies suggests potent inhibition of cancer cell growth and tumor formation. In conclusion, in vitro and animal models support the antiproliferative and antitumor effects of various bilberry and lingonberry preparations on digestive tract cancers.
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Affiliation(s)
- Tuulia Onali
- Department of Oral and Maxillofacial Diseases, Faculty of Medicine, University of Helsinki, 00014 Helsinki, Finland; (T.O.); (A.K.); (T.S.)
- Medical Nutrition Physiology, Department of Pharmacology, Faculty of Medicine, University of Helsinki, 00014 Helsinki, Finland
- Translational Immunology Research Program (TRIMM), University of Helsinki, 00014 Helsinki, Finland
| | - Anne Kivimäki
- Department of Oral and Maxillofacial Diseases, Faculty of Medicine, University of Helsinki, 00014 Helsinki, Finland; (T.O.); (A.K.); (T.S.)
- Medical Nutrition Physiology, Department of Pharmacology, Faculty of Medicine, University of Helsinki, 00014 Helsinki, Finland
| | - Matti Mauramo
- Department of Pathology, Faculty of Medicine, University of Helsinki and Helsinki University Hospital, 00014 Helsinki, Finland;
| | - Tuula Salo
- Department of Oral and Maxillofacial Diseases, Faculty of Medicine, University of Helsinki, 00014 Helsinki, Finland; (T.O.); (A.K.); (T.S.)
- Translational Immunology Research Program (TRIMM), University of Helsinki, 00014 Helsinki, Finland
- Cancer and Translational Medicine Research Unit, University of Oulu, 90014 Oulu, Finland
- Medical Research Centre, Oulu University Hospital, 90014 Oulu, Finland
| | - Riitta Korpela
- Medical Nutrition Physiology, Department of Pharmacology, Faculty of Medicine, University of Helsinki, 00014 Helsinki, Finland
- Human Microbiome Research Program, University of Helsinki, 00014 Helsinki, Finland
- Correspondence:
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Ranjani S, Kowshik J, Sophia J, Nivetha R, Baba AB, Veeravarmal V, Joksić G, Rutqvist LE, Nilsson R, Nagini S. Activation of PI3K/Akt/NF-kB Signaling Mediates Swedish Snus Induced Proliferation and Apoptosis Evasion in the Rat Forestomach: Modulation by Blueberry. Anticancer Agents Med Chem 2019; 20:59-69. [PMID: 31696813 DOI: 10.2174/1871520619666191024115738] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 06/23/2019] [Accepted: 07/17/2019] [Indexed: 12/23/2022]
Abstract
BACKGROUND AND OBJECTIVES The present study was undertaken to ascertain whether the modulatory effects of blueberries on cell proliferation induced by Swedish snus in the rat forestomach epithelium is mediated via abrogation of the PI3K/Akt/NFκB signaling axis that regulates cell fate decision. METHODS The transcript and protein expression of genes involved in cell cycle progression and apoptosis, as well as canonical PI3K/Akt/NF-κB signaling pathways, were analyzed by qRT-PCR, immunoblotting and ELISA. Expression profiling of noncoding RNAs (ncRNAs) that influence PI3K/Akt/NF-κB signaling was undertaken. TUNEL assay was performed using flow cytometry. RESULTS Administration of snus induced basal cell hyperplasia in the rat forestomach with increased cell proliferation and inhibition of apoptosis. This was associated with the activation of PI3K/Akt/NFκB signaling. Coadministration of blueberries significantly suppressed snus-induced hyperplasia. Analysis of the molecular mechanisms revealed that blueberries suppress the phosphorylation of Akt, NF-κB and IKKβ, prevent nuclear translocation of NF-κB and modulate the expression of microRNAs that influence PI3K/Akt/NF-κB signaling. CONCLUSION Taken together, the results of the current study provide compelling evidence that blueberries exert significant protective effects against snus-induced soft tissue changes in the rat forestomach epithelium mediated by inhibiting key molecular players in the PI3K/Akt/NF-κB signaling axis. Long-term studies on the impact of snus exposure on various cellular processes, signaling pathways, and the interplay between genetic and epigenetic mechanisms are however warranted. The results of this investigation may contribute to the development of protection against soft tissue changes induced by smokeless tobacco in the human oral cavity.
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Affiliation(s)
- Singaraj Ranjani
- Department of Biochemistry and Biotechnology, Faculty of Science, Annamalai University, Annamalainagar-608 002, Tamil Nadu, India
| | - Jaganathan Kowshik
- Department of Biochemistry and Biotechnology, Faculty of Science, Annamalai University, Annamalainagar-608 002, Tamil Nadu, India
| | - Josephraj Sophia
- Department of Biochemistry and Biotechnology, Faculty of Science, Annamalai University, Annamalainagar-608 002, Tamil Nadu, India
| | - Ramesh Nivetha
- Department of Biochemistry and Biotechnology, Faculty of Science, Annamalai University, Annamalainagar-608 002, Tamil Nadu, India
| | - Abdul B Baba
- Department of Biochemistry and Biotechnology, Faculty of Science, Annamalai University, Annamalainagar-608 002, Tamil Nadu, India
| | - Veeran Veeravarmal
- Division of Oral and Maxillofacial Pathology, Rajah Muthiah Dental College and Hospital, Annamalai University, Annamalainagar-608 002, Tamil Nadu, India
| | - Gordana Joksić
- Vinca Institute of Nuclear Sciences, Laboratory for Physical Chemistry, University of Belgrade, Mike PetrovicaAlasa 12-14, Belgrade 11001, Serbia
| | | | - Robert Nilsson
- Vinca Institute of Nuclear Sciences, Laboratory for Physical Chemistry, University of Belgrade, Mike PetrovicaAlasa 12-14, Belgrade 11001, Serbia
| | - Siddavaram Nagini
- Department of Biochemistry and Biotechnology, Faculty of Science, Annamalai University, Annamalainagar-608 002, Tamil Nadu, India
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Joksić G, Rutqvist LE, Mićić M, Tričković JF, Nilsson R. Factors effecting the induction of rat forestomach hyperplasia induced by Swedish oral smokeless tobacco (snus). Regul Toxicol Pharmacol 2019; 104:21-28. [PMID: 30844416 DOI: 10.1016/j.yrtph.2019.02.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 01/23/2019] [Accepted: 02/24/2019] [Indexed: 01/27/2023]
Abstract
Long term exposure to oral smokeless tobacco may induce lesions in the oral cavity characterized by a hyperplastic epithelium. The possible role of nicotine and the physical properties of oral tobacco for developing these lesions, as well as of dysplasia and neoplasia is unclear. Low nitrosamine Swedish snus as well as non-genotoxic butylated hydroxyanisole induces increased cellular proliferation in the rat forestomach epithelia. Using this model, we report here on the effects of nicotine, pH, and particle size. Snus with different properties had no impact on oxidative stress as determined by 8-oxo-7,8-dihydro-2'-deoxyguanosine, or on interleukin IL-1b. Whereas BHA boosted IL-6, probably due to the presence of nicotine. there was no significant enhancement of cell divisions with increasing particle size, although in individual samples the variations in proliferation rates increased greatly with increasing particle size. Conforming to human experience, the enhanced cell proliferation caused by snus was found to be completely reversible. A cacao bean extract had a protective action similar to that previously found for blueberries. The main cause of the observed tobacco induced cell proliferation could be mechanical irritation, possibly in combination with nicotine, whereas within the studied range, pH did not affect the rate of cell division.
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Affiliation(s)
- Gordana Joksić
- Vinča Institute of Nuclear Sciences, Department of Physical Chemistry, University of Belgrade, POB 522, 11000, Belgrade, Serbia
| | | | - Mileva Mićić
- Institute for Medical Research, University of Belgrade, POB 49, 11000, Belgrade, Serbia
| | - Jelena Filipović Tričković
- Vinča Institute of Nuclear Sciences, Department of Physical Chemistry, University of Belgrade, POB 522, 11000, Belgrade, Serbia
| | - Robert Nilsson
- Vinča Institute of Nuclear Sciences, Department of Physical Chemistry, University of Belgrade, POB 522, 11000, Belgrade, Serbia.
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Nilsson R. Use of rodent data for cancer risk assessment of smokeless tobacco in the regulatory context. Regul Toxicol Pharmacol 2017. [PMID: 28625913 DOI: 10.1016/j.yrtph.2017.06.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
To support risk management decisions, information from different fields has been integrated in this presentation to provide a realistic quantitative cancer risk assessment of smokeless tobacco. Smoking among Swedish men is currently below 10%, while about 20% use a special smokeless tobacco (snus) as a substitute for cigarettes. Epidemiological data and molecular biomarkers demonstrate that rodent bioassays with tobacco specific nitrosamines (TSNA) overestimate cancer risk from snus by more than one order of magnitude. The underlying reasons are discussed. DNA damage constitutes a necessary, although not sufficient prerequisite for cancer initiation. Individuals who have not used tobacco exhibit DNA lesions identical with those induced by TSNA. No increase above this adduct background can be shown from snus, and extensive epidemiological studies in Sweden have failed to demonstrate elevated cancer risks even in long term users. A "bench mark" for acceptable risk of 1/10(6) derived from rodent data has been suggested when regulating snus. By relating similarly derived estimates for some food contaminants, the implementation even of a limit of 1/10(4) may be unrealistic. The management of smokeless tobacco products has rarely been based on a scientifically sound risk assessment, where attention is given to the outstandingly higher hazards associated with smoking.
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Affiliation(s)
- Robert Nilsson
- Vinča Institute of Nuclear Sciences, Laboratory for Physical Chemistry, University of Belgrade, Vinča, Serbia.
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