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Summer M, Ali S, Fiaz U, Tahir HM, Ijaz M, Mumtaz S, Mushtaq R, Khan R, Shahzad H, Fiaz H. Therapeutic and immunomodulatory role of probiotics in breast cancer: A mechanistic review. Arch Microbiol 2023; 205:296. [PMID: 37486419 DOI: 10.1007/s00203-023-03632-7] [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: 03/14/2023] [Revised: 07/03/2023] [Accepted: 07/09/2023] [Indexed: 07/25/2023]
Abstract
Breast cancer has become the most prevalent and noxious type of malignancy around the globe (Giaquinto et al., 2022). Multiple clinical strategies including chemotherapy, radiotherapy, and immunotherapy have been in practice to manage breast cancer. Besides the protective roles of conventional remedial approaches, and non-reversible and deteriorative impacts like healthy cell damage, organ failure, etc., the world scientific community is in a continuous struggle to find some alternative biocompatible and comparatively safe solutions. Among novel breast cancer management/treatment options, the role of probiotics has become immensely important. The current review encompasses the prevalence statistics of breast cancer across the globe concerning developed and undeveloped counties, intestinal microbiota linkage with breast cancer, and association of breast microbiome with breast carcinoma. Furthermore, this review also narrates the role of probiotics against breast cancer and their mode of action. In Vivo and In Vitro studies under breast cancer research regarding probiotics are mechanistically explained. The current review systematically explains the immunomodulatory role of probiotics to prevent breast cancer. Last, but not the least, current review concludes the use of probiotics in the treatment of breast cancer through various mechanisms and future recommendations for molecular basis studies.
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Affiliation(s)
- Muhammad Summer
- Department of Zoology, Government College University Lahore, Lahore, 54000, Pakistan
| | - Shaukat Ali
- Department of Zoology, Government College University Lahore, Lahore, 54000, Pakistan.
| | - Umaima Fiaz
- Department of Zoology, Government College University Lahore, Lahore, 54000, Pakistan
| | - Hafiz Muhammad Tahir
- Department of Zoology, Government College University Lahore, Lahore, 54000, Pakistan
| | - Muhammad Ijaz
- Department of Veterinary Medicine, University of Veterinary and Animal Sciences Lahore, Lahore, Pakistan
| | - Shumaila Mumtaz
- Department of Zoology, Government College University Lahore, Lahore, 54000, Pakistan
| | - Rabia Mushtaq
- Department of Zoology, Government College University Lahore, Lahore, 54000, Pakistan
| | - Rida Khan
- Department of Zoology, Government College University Lahore, Lahore, 54000, Pakistan
| | - Hafsa Shahzad
- Department of Zoology, Government College University Lahore, Lahore, 54000, Pakistan
| | - Hashim Fiaz
- Department of Medicine and Surgery, Ammer-ul-din Medical College Lahore, Lahore, Pakistan
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2
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Isozaki S, Konishi H, Tanaka H, Yamamura C, Moriichi K, Ogawa N, Fujiya M. Probiotic-derived heptelidic acid exerts antitumor effects on extraintestinal melanoma through glyceraldehyde-3-phosphate dehydrogenase activity control. BMC Microbiol 2022; 22:110. [PMID: 35459092 PMCID: PMC9026996 DOI: 10.1186/s12866-022-02530-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 04/15/2022] [Indexed: 11/10/2022] Open
Abstract
Background Several microorganisms inhabit the mammalian gastrointestinal tract and are associated with the pathogenesis of various diseases, including cancer. Recent studies have indicated that several probiotics produce antitumor molecules and inhibit host tumor progression. We demonstrated that heptelidic acid (HA), a sesquiterpene lactone derived from the probiotic Aspergillus oryzae, exerts antitumor effects against pancreatic cancer in vitro and in vivo. In this study, the antitumor effects of HA against extraintestinal melanoma were assessed in vitro and in vivo. Results Sulforhodamine B (SRB) assay revealed that the growth of B16F10 cells was significantly inhibited by HA in a concentration-dependent manner. The enzymatic activity of glyceraldehyde-3-phosphate dehydrogenase (GAPDH) decreased in proportion with the growth inhibition effect of HA. Moreover, oral HA administration significantly suppressed the growth of transplanted B16F10 tumors without any significant changes in biochemical test values. Moreover, GAPDH activity in the transplanted tumor tissues in the HA group significantly decreased compared with that in the PBS group. Conclusion This study suggests that orally administered HA was absorbed in the gastrointestinal tract, reached the cancer cells transplanted in the skin, and inhibited GAPDH activity, thereby inhibiting the growth of extraintestinal melanoma cells. Thus, this study proposes a novel system for extraintestinal tumor regulation via gut bacteria-derived bioactive mediators. Supplementary Information The online version contains supplementary material available at 10.1186/s12866-022-02530-0.
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Affiliation(s)
- Shotaro Isozaki
- Division of Metabolism and Biosystemic Science, Gastroenterology, and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, Asahikawa, 078-8510, Japan.,Department of Forensic Medicine, Tokai University School of Medicine, Isehara, 259-1193, Japan
| | - Hiroaki Konishi
- Division of Metabolism and Biosystemic Science, Gastroenterology, and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, Asahikawa, 078-8510, Japan. .,Department of Gastroenterology and Advanced Medical Sciences, Department of Medicine, Asahikawa Medical University, Asahikawa, 078-8510, Japan.
| | - Hiroki Tanaka
- Division of Tumor Pathology, Department of Pathology, Asahikawa Medical University, Asahikawa, 078-8510, Japan
| | - Chikage Yamamura
- Division of Metabolism and Biosystemic Science, Gastroenterology, and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, Asahikawa, 078-8510, Japan
| | - Kentaro Moriichi
- Division of Metabolism and Biosystemic Science, Gastroenterology, and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, Asahikawa, 078-8510, Japan
| | - Naoki Ogawa
- Center for Advanced Research and Education, Asahikawa Medical University, Asahikawa, 078-8510, Japan
| | - Mikihiro Fujiya
- Division of Metabolism and Biosystemic Science, Gastroenterology, and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, Asahikawa, 078-8510, Japan.,Department of Gastroenterology and Advanced Medical Sciences, Department of Medicine, Asahikawa Medical University, Asahikawa, 078-8510, Japan
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Rao Malla R, Marni R, Kumari S, Chakraborty A, Lalitha P. Microbiome Assisted Tumor Microenvironment: Emerging Target of Breast Cancer. Clin Breast Cancer 2021; 22:200-211. [PMID: 34625387 DOI: 10.1016/j.clbc.2021.09.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 07/21/2021] [Accepted: 09/07/2021] [Indexed: 02/08/2023]
Abstract
The microbiome assisted tumor microenvironment (TME) supports the tumors by modulating multiple mechanisms. Recent studies reported that microbiome dysbiosis is the main culprit of immune suppressive phenotypes of TME. Further, it has been documented that immune suppressive stimulate metastatic phenotype in TME via modulating signaling pathways, cell differentiation, and innate immune response. This review aims at providing comprehensive developments in microbiome and breast TME interface. The combination of microbiome and breast cancer, breast TME and microbiome or microbial dysbiosis, microbiome and risk of breast cancer, microbiome and phytochemicals or anticancer drugs were as used keywords to retrieve literature from PubMed, Google scholar, Scopus, Web of Science from 2015 onwards. Based on the literature, we presented the impact of TME assisted microbiome dysbiosis and estrobolome in breast cancer risk, drug resistance, and antitumor immunity. We have discussed the influence of antibiotics on the breast microbiome. we also presented the possible dietary phytochemicals that target microbiome dysbiosis to restore the tumor suppression immune environment in breast TME. We presented the microbiome as a possible marker for breast cancer diagnosis. This study will help in the identification of microbiome as a novel target and diagnostic markers and phytochemicals and microbiome metabolites for breast cancer treatment.
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Affiliation(s)
- Rama Rao Malla
- Cancer Biology Laboratory, Department of Biochemistry and Bioinformatics, GIS, GITAM (Deemed to be University), Visakhapatnam, Andhra Pradesh, India.
| | - Rakshmitha Marni
- Cancer Biology Laboratory, Department of Biochemistry and Bioinformatics, GIS, GITAM (Deemed to be University), Visakhapatnam, Andhra Pradesh, India
| | - Seema Kumari
- Cancer Biology Laboratory, Department of Biochemistry and Bioinformatics, GIS, GITAM (Deemed to be University), Visakhapatnam, Andhra Pradesh, India
| | | | - Pappu Lalitha
- Department of Microbiology and FST, GIS, GITAM (Deemed to be University), Visakhapatnam, Andhra Pradesh, India
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Machida Y, Imai T. Different properties of mammary carcinogenesis induced by two chemical carcinogens, DMBA and PhIP, in heterozygous BALB/c Trp53 knockout mice. Oncol Lett 2021; 22:738. [PMID: 34466150 PMCID: PMC8387855 DOI: 10.3892/ol.2021.12999] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 07/02/2021] [Indexed: 12/31/2022] Open
Abstract
Chemical carcinogens, such as 7,12-dimethylbenz[a]anthracene (DMBA) and 2-amino-1-methyl-6-phenylimidazo(4,5-b)pyridine (PhIP), are known to induce mammary carcinomas in mice and rats. In the present study, the phenotypic and genotypic characteristics of carcinogen-induced mammary carcinogenesis in heterozygous BALB/c tumor protein p53 (Trp53) knockout mice were examined with reference to published data surrounding human breast cancer. A significantly accelerated induction of mammary carcinomas was observed following a single dose of DMBA (50 mg/kg of body weight at 7 weeks of age), and a modest acceleration was induced by PhIP (50 mg/kg of body weight) administered by gavage 6 times/2 weeks from 7 weeks of age. DMBA-induced mammary carcinomas were histopathologically characterized by distinct biphasic structures with luminal and myoepithelial cells, as well as a frequent estrogen receptor expression, and PhIP-induced carcinomas with solid/microacinar structures consisted of pleomorphic cells. Of note, DMBA-induced mammary carcinomas were characterized by a HRas proto-oncogene (Hras) mutation at codon 61, and gene/protein expression indicating MAPK stimulation. PhIP-induced lesions were suspected to be caused by different molecular mechanisms, including Wnt/β-catenin signaling and/or gene mutation-independent PI3K/AKT signaling activation. In conclusion, the present mouse mammary carcinogenesis models, induced by a combination of genetic and exogenous factors, may be utilized (such as the DMBA-induced model with Trp53 gene function deficiency as a model of adenomyoepithelioma, characterized by distinct biphasic cell constituents and Hras mutations), but PhIP-induced models are required to further analyze the genetic/epigenetic mechanisms promoting mammary carcinomas.
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Affiliation(s)
- Yukino Machida
- Central Animal Division, National Cancer Center Research Institute, Tokyo 104-0045, Japan.,Department of Veterinary Pathology, Nippon Veterinary and Life Science University, Tokyo 180-8602, Japan
| | - Toshio Imai
- Central Animal Division, National Cancer Center Research Institute, Tokyo 104-0045, Japan
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Dadfarma N, Nowroozi J, Kazemi B, Bandehpour M. Identification of the effects of acid-resistant Lactobacillus casei metallopeptidase gene under colon-specific promoter on the colorectal and breast cancer cell lines. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2021; 24:506-513. [PMID: 34094033 PMCID: PMC8143706 DOI: 10.22038/ijbms.2021.53015.11950] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Accepted: 03/02/2021] [Indexed: 12/29/2022]
Abstract
OBJECTIVES Anti-tumor effects of Lactobacilli as normal flora have been described. In a previous study, we identified a protein isolated from the bacterium Lactobacillus casei ATCC 39392 in acidic pH conditions named metallopeptidase. Therefore, we decided to evaluate the effect of the recombinant plasmid coding metallopeptidase protein on the inhibition, proliferation, or apoptosis of the colorectal and breast cancer cell lines. MATERIALS AND METHODS Identified metallopeptidase gene of L. casei under the specific colon cancer promoter was transferred to the Human SW480 and MDA-MB231 cells. Cell viability was evaluated in these two cancer cell lines via MTT assay, apoptotic changes, and expression level of p53 and MAP2K1 genes in comparison with healthy blood cells as a control group. RESULTS Viability of SW480 and MDA-MB231 cells was identified at 25% and 7%, respectively. An increase in apoptotic cell death in the SW480 cell line was observed as revealed by Tunnel staining. The expression assay of TP53 and MAP2K1 genes showed that MPL protein altered gene expression in a cell type-specific manner. Tunnel analyses showed that the pronounced cytotoxic effect of pEGFP-C2/MPL plasmid on SW480 cells was mediated through apoptosis. CONCLUSION These results suggest that endogenous recombinant MPL under colon specific promoter inhibits the proliferation of SW480 colorectal cancer cells by increase in MAP2K1 and P53 activation. L. casei metallopeptidase under the same circumstances could not affect the growth rate and viability of MDA-MB231 breast cancer cells in vitro.
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Affiliation(s)
- Narges Dadfarma
- Department of Microbiology, Faculty of Biological Sciences, North Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Jamileh Nowroozi
- Department of Microbiology, Faculty of Biological Sciences, North Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Bahram Kazemi
- Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mojgan Bandehpour
- Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Panebianco C, Latiano T, Pazienza V. Microbiota Manipulation by Probiotics Administration as Emerging Tool in Cancer Prevention and Therapy. Front Oncol 2020; 10:679. [PMID: 32523887 PMCID: PMC7261958 DOI: 10.3389/fonc.2020.00679] [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: 02/17/2020] [Accepted: 04/09/2020] [Indexed: 12/11/2022] Open
Abstract
A growing body of literature indicates that microbiota plays a significant role in the development and curability of cancer, essentially due to the microbial ability to modulate immune and inflammatory responses to cancer and therapeutic treatments. Probiotics consumption, either in the form of food or supplements, is an easy and feasible way to manipulate microbiota composition and a number of recent researches have shown that it may represent a valid approach to prevent cancer onset and progression, to improve the clinical efficacy of the current anticancer treatments, and to mitigate the harmful adverse events of chemo- and radiotherapy, which often lead to scale drug doses, to delay or interrupt treatments. In this review, we gather the main in vivo studies on the current topic, focusing on the beneficial effects and underlying mechanisms provided by bacterial and yeast probiotics and their combination, in the setting of various types of cancers and different therapeutic protocols. These findings will likely open the way to consider, in future, regular probiotics intake as an adjuvant strategy in cancer prevention and management.
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Affiliation(s)
- Concetta Panebianco
- Division of Gastroenterology, Fondazione IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy
| | - Tiziana Latiano
- Oncology Department, Fondazione IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy
| | - Valerio Pazienza
- Division of Gastroenterology, Fondazione IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy
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7
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Sipe LM, Chaib M, Pingili AK, Pierre JF, Makowski L. Microbiome, bile acids, and obesity: How microbially modified metabolites shape anti-tumor immunity. Immunol Rev 2020; 295:220-239. [PMID: 32320071 PMCID: PMC7841960 DOI: 10.1111/imr.12856] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Accepted: 03/02/2020] [Indexed: 02/06/2023]
Abstract
Bile acids (BAs) are known facilitators of nutrient absorption but recent paradigm shifts now recognize BAs as signaling molecules regulating both innate and adaptive immunity. Bile acids are synthesized from cholesterol in the liver with subsequent microbial modification and fermentation adding complexity to pool composition. Bile acids act on several receptors such as Farnesoid X Receptor and the G protein-coupled BA receptor 1 (TGR5). Interestingly, BA receptors (BARs) are expressed on immune cells and activation either by BAs or BAR agonists modulates innate and adaptive immune cell populations skewing their polarization toward a more tolerogenic anti-inflammatory phenotype. Intriguingly, recent evidence also suggests that BAs promote anti-tumor immune response through activation and recruitment of tumoricidal immune cells such as natural killer T cells. These exciting findings have redefined BA signaling in health and disease wherein they may suppress inflammation on the one hand, yet promote anti-tumor immunity on the other hand. In this review, we provide our readers with the most recent understanding of the interaction of BAs with the host microbiome, their effect on innate and adaptive immunity in health and disease with a special focus on obesity, bariatric surgery-induced weight loss, and immune checkpoint blockade in cancer.
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Affiliation(s)
- Laura M. Sipe
- Division of Hematology and Oncology, Department of Medicine, College of Medicine, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Mehdi Chaib
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Ajeeth K. Pingili
- Division of Hematology and Oncology, Department of Medicine, College of Medicine, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Joseph F. Pierre
- Department of Pediatrics, College of Medicine, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Liza Makowski
- Division of Hematology and Oncology, Department of Medicine, College of Medicine, University of Tennessee Health Science Center, Memphis, TN, USA
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN, USA
- Center for Cancer Research, University of Tennessee Health Science Center, Memphis, TN, USA
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8
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Moorehead RA. Rodent Models Assessing Mammary Tumor Prevention by Soy or Soy Isoflavones. Genes (Basel) 2019; 10:E566. [PMID: 31357528 PMCID: PMC6722900 DOI: 10.3390/genes10080566] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 06/26/2019] [Accepted: 07/09/2019] [Indexed: 12/14/2022] Open
Abstract
While epidemiological studies performed in Asian countries generally show that high levels of dietary soy are associated with reduced breast cancer risk, studies in Western countries have typically failed to show this correlation. In an attempt to model the preventative actions of soy on mammary tumor development, rodent models have been employed. Thirty-four studies were identified that evaluated the impact of soy products or purified soy isoflavones on mammary tumor initiation (studies evaluating established mammary tumors or mammary tumor cell lines were not included) and these studies were separated into mammary tumors induced by chemical carcinogens or transgenic expression of oncogenes based on the timing of soy administration. Regardless of when soy-based diets or purified isoflavones were administered, no consistent protective effects were observed in either carcinogen-induced or oncogene-induced mammary tumors. While some studies demonstrated that soy or purified isoflavones could reduce mammary tumor incidence, other studies showed either no effect or tumor promoting effects of soy products or isoflavones. Most importantly, only five studies found a decrease in mammary tumor incidence and six studies observed a decrease in tumor multiplicity, two relevant measures of the tumor preventative effects of soy or isoflavones. The variable outcomes of the studies examined were not completely surprising given that few studies employed the same experimental design. Future studies should be carefully designed to more accurately emulate soy consumption observed in Asian cultures including lifetime exposure to less refined soy products and potentially the incorporation of multigenerational feeding studies.
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Affiliation(s)
- Roger A Moorehead
- Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Guelph, ON N1G2W1, Canada.
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9
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Ranjbar S, Seyednejad SA, Azimi H, Rezaeizadeh H, Rahimi R. Emerging Roles of Probiotics in Prevention and Treatment of Breast Cancer: A Comprehensive Review of Their Therapeutic Potential. Nutr Cancer 2019; 71:1-12. [PMID: 30686054 DOI: 10.1080/01635581.2018.1557221] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Breast cancer is the most common cancer among women. Need for novel preventive and curative approaches with more safety than the present one seems inevitable. This review is devoted to potentially favorable role of probiotics in prevention and treatment of breast cancer as well as their alleviating role regarding chemotherapy-induced side effects. Literature was searched for human, animal, and in vitro studies about the role of probiotics in breast cancer. In vitro studies showed that probiotic intervention induces cancer cells apoptosis and inhibits their proliferation. In animal models, treatment with probiotics inhibited tumor growth and reduced tumor size; also, the immunomodulatory, antiangiogenesis and antimetastatic activities of probiotics were illustrated. Human studies showed that intake of Lactobacillus casei shirota reduced the breast cancer incidence and consumption of fermented milk products and yogurt was inversely associated with breast cancer incidence; however, no study regarding the curative role of probiotics in breast cancer is available. Studies on the effect of probiotics on chemotherapy-induced side effects in breast cancer were contradictory but showed potential for more investigation. Probiotics seem to have a potential role in both prevention and treatment of breast cancer. However, more clinical studies are needed to elucidate their efficacy and safety.
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Affiliation(s)
- Sheyda Ranjbar
- a Department of Pharmaceutics, Faculty of Pharmacy , Tehran University of Medical Sciences , Tehran , Iran
| | - Seyed Afshin Seyednejad
- b Department of Toxicology and Pharmacology, Faculty of Pharmacy , Tehran University of Medical Sciences , Tehran , Iran
| | - Haniye Azimi
- b Department of Toxicology and Pharmacology, Faculty of Pharmacy , Tehran University of Medical Sciences , Tehran , Iran
| | - Hossein Rezaeizadeh
- c Department of Traditional Medicine, School of Persian Medicine , Tehran University of Medical Sciences , Tehran , Iran
| | - Roja Rahimi
- d Department of Traditional Pharmacy, School of Persian Medicine , Tehran University of Medical Sciences , Tehran , Iran.,e Evidence-Based Medicine Group, Pharmaceutical Sciences Research Center , Tehran University of Medical Sciences , Tehran , Iran
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10
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Malik SS, Saeed A, Baig M, Asif N, Masood N, Yasmin A. Anticarcinogenecity of microbiota and probiotics in breast cancer. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2018. [DOI: 10.1080/10942912.2018.1448994] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Saima Shakil Malik
- Department of Environmental Sciences, Microbiology and Biotechnology Research Lab, Fatima Jinnah Women University, Rawalpindi, Pakistan
- Surgery Department, Armed Forces Institute of Pathology, Rawalpindi, Pakistan
| | - Ayesha Saeed
- Department of Environmental Sciences, Microbiology and Biotechnology Research Lab, Fatima Jinnah Women University, Rawalpindi, Pakistan
| | - Mehreen Baig
- Chemical Pathology and Endocrinology, Fauji Foundation Hospital, Rawalpindi, Pakistan
| | - Naveed Asif
- Surgery Department, Armed Forces Institute of Pathology, Rawalpindi, Pakistan
| | - Nosheen Masood
- Department of Environmental Sciences, Microbiology and Biotechnology Research Lab, Fatima Jinnah Women University, Rawalpindi, Pakistan
| | - Azra Yasmin
- Department of Environmental Sciences, Microbiology and Biotechnology Research Lab, Fatima Jinnah Women University, Rawalpindi, Pakistan
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Nagino T, Kaga C, Kano M, Masuoka N, Anbe M, Moriyama K, Maruyama K, Nakamura S, Shida K, Miyazaki K. Effects of fermented soymilk with Lactobacillus casei Shirota on skin condition and the gut microbiota: a randomised clinical pilot trial. Benef Microbes 2018; 9:209-218. [DOI: 10.3920/bm2017.0091] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Several clinical studies have shown that isoflavones and Lactobacillus casei Shirota (LcS) have beneficial effects on skin condition and the gut microbiota, respectively. Thus, we investigated the effects of consecutive intake of fermented soymilk (FSM) with LcS on skin condition and the gut microbiota, as well as isoflavone bioavailability, in a randomised, double-blind, placebo-controlled trial as a pilot study. Sixty healthy premenopausal Japanese women received FSM containing a moderate level of isoflavone aglycones and a probiotic LcS, or soymilk (SM) containing neither of them, twice a day for 8 weeks. Skin condition was assessed by a subjective questionnaire for face and morphological analysis of the stratum corneum on the inner forearm. Faecal microbiota and urinary isoflavone were analysed by 16S rRNA gene amplicon sequencing and high-performance liquid chromatography tandem mass spectrometry, respectively. Both the FSM and SM groups had improved skin condition as assessed from scores of overall satisfaction, dryness, moisture, elasticity, coarseness, pigmentation and/or stratum corneum morphology, as well as significantly increased levels of urinary isoflavones during the intake period compared with the pre-intake period, although there were no significant differences between the two groups. There was a significant positive correlation between urinary isoflavone levels and skin questionnaire scores. In contrast, the relative abundance levels of Lactobacillaceae significantly increased and those of Bifidobacteriaceae tended to increase during the intake period compared with the pre-intake period. For the after-intake period they only decreased significantly in the FSM group. The levels of Enterobacteriaceae and Porphyromonadaceae significantly decreased during the intake period in the FSM group. These findings suggest that daily intake of FSM, as well as SM, provides health benefits that improve skin condition via increased levels of isoflavone absorption in the body, and that only FSM beneficially modifies the gut microbiota in premenopausal healthy women.
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Affiliation(s)
- T. Nagino
- Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - C. Kaga
- Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - M. Kano
- Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - N. Masuoka
- Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - M. Anbe
- Yakult Honsha Co., Ltd., 1-1-19 Higashi-shinbashi, Minato-ku, Tokyo 105-8660, Japan
| | - K. Moriyama
- Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - K. Maruyama
- RIKEN Innovation Center, Nakamura Laboratory, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - S. Nakamura
- RIKEN Innovation Center, Nakamura Laboratory, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - K. Shida
- Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - K. Miyazaki
- Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
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12
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Dorostkar R, Hashemzadeh MS, Jafari S, Tat M, Ghalavand M, Asghari MH, Moloudizargari M. Immunotherapeutic efficacy of a Lactobacillus casei lysate as an adjuvant combined with a heated-4T1 mammary carcinoma cell lysate in a murine model of breast cancer. ASIAN BIOMED 2017. [DOI: 10.5372/1905-7415.1004.494] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Abstract
Background
Immunotherapy, during which the immune system of the patient is manipulated to act against tumors has been among the most successful methods in the treatment of breast cancer, a leading cause of mortality among women worldwide.
Objectives
To investigate the immunotherapeutic efficacy of Lactobacillus casei lysate as an adjuvant in combination with a heated-4T1 mammary carcinoma cell lysate in a model of breast cancer.
Methods
After ethics committee approval of all animal procedures, a murine model of breast cancer was induced in BALB/c mice using 4T1 cells. These mice were immunized with a combination of lysates of heated 4T1 cells and L. casei. Subsequent changes in tumor size and weight, and the production of TNF-α, IL-2, IL-12, IL-17, and IL13 were measured. Lung weights were measured as an indicator of metastasis to other organs.
Results
The tumor size and weight in mice immunized with the combined vaccine were significantly reduced compared with controls. The combined immunotherapy altered the pattern of cytokine production to the advantage of antitumor immunity, and was significantly more potent than immunization with heated-4T1-cell lysate or L. casei lysate alone.
Conclusions
Coadministration of L. casei lysate enhanced the immunotherapeutic efficacy of the heated-4T1-cell lysate as a source of tumor-associated antigens. L. casei can potentially be used as an adjuvant combined with sources of tumor antigens in the treatment of cancers, and as a safe alternative to the current adjuvants that cause greater irritation to hosts. Further studies are required to clarify the mechanisms underlying these effects.
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Affiliation(s)
- Ruhollah Dorostkar
- Applied Virology Research Center , Baqiyatallah University of Medical Sciences , Tehran 14351 , Iran
| | | | - Sajjad Jafari
- Faculty of Veterinary Medicine , Urmia University , Urmia 57153 , Iran
| | - Mahdi Tat
- Applied Virology Research Center , Baqiyatallah University of Medical Sciences , Tehran 14351 , Iran
| | - Majdedin Ghalavand
- Applied Virology Research Center , Baqiyatallah University of Medical Sciences , Tehran 14351 , Iran
| | - Mohammad Hossein Asghari
- Department of Pharmacology, Faculty of Medicine , Babol University of Medical Sciences , Babol 47176 , Iran
- Department of Toxicology and Pharmacology , Faculty of Pharmacy and Pharmaceutical Sciences Research Center , Tehran University of Medical Sciences , Tehran 14155 , Iran
| | - Milad Moloudizargari
- Student Research Committee, Department of Immunology , School of Medicine, Shahid Beheshti University of Medical Sciences , Tehran 19839 , Iran
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13
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Serata M, Kiwaki M, Iino T. Functional analysis of a novel hydrogen peroxide resistance gene in Lactobacillus casei strain Shirota. MICROBIOLOGY-SGM 2016; 162:1885-1894. [PMID: 27692041 DOI: 10.1099/mic.0.000379] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Lactic acid bacteria have a variety of mechanisms for tolerance to oxygen and reactive oxygen species, and these mechanisms differ among species. Lactobacillus casei strain Shirota grows well under aerobic conditions, indicating that the various systems involved in oxidative stress resistance function in this strain. To elucidate the mechanism of oxidative stress resistance in L. casei strain Shirota, we examined the transcriptome response to oxygen or hydrogen peroxide exposure. We then focused on an uncharacterized gene that was found to be up-regulated by both oxygen and hydrogen peroxide stress; we named the gene hprA1 (hydrogen peroxide resistance gene). This gene is widely distributed among lactobacilli. We investigated the involvement of this gene in oxidative stress resistance, as well as the mechanism of tolerance to hydrogen peroxide. Growth of L. casei MS105, an hprA1-disrupted mutant, was not affected by oxygen stress, whereas the survival rate of MS105 after hydrogen peroxide treatment was markedly reduced compared to that of the wild-type. However, the activity of MS105 in eliminating hydrogen peroxide was similar to that of the wild-type. We cloned hprA1 from L. caseiShirota and purified recombinant HprA1 protein from Escherichia coli. We demonstrated that the recombinant HprA1 protein bound to iron and prevented the formation of a hydroxyl radical in vitro. Thus, HprA1 protein probably contributes to hydrogen peroxide tolerance in L. casei strain Shirota by binding to iron in the cells and preventing the formation of a hydroxyl radical.
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Affiliation(s)
- Masaki Serata
- Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo, Japan
| | - Mayumi Kiwaki
- Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo, Japan
| | - Tohru Iino
- Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo, Japan
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14
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Yu AQ, Li L. The Potential Role of Probiotics in Cancer Prevention and Treatment. Nutr Cancer 2016; 68:535-44. [PMID: 27144297 DOI: 10.1080/01635581.2016.1158300] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The human gut microbiota has a significant effect on many aspects of human physiology such as metabolism, nutrient absorption, and immune function. Imbalance of the microbiota has been implicated in many disorders including inflammatory bowel disease, obesity, asthma, psychiatric illnesses, and cancers. As a kind of functional foods, probiotics have been shown to play a protective role against cancer development in animal models. Clinical application of probiotics indicated that some probiotic strains could diminish the incidence of postoperative inflammation in cancer patients. Chemotherapy or radiotherapy-related diarrhea was relieved in patients who were administered oral probiotics. The present review summarizes the up-to-date studies on probiotic effects and the underlying mechanisms related to cancer. At present, it is commonly accepted that most commercial probiotic products are generally safe and can improve the health of the host. By modulating intestinal microbiota and immune response, some strains of probiotics can be used as an adjuvant for cancer prevention or/and treatment.
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Affiliation(s)
- Ai-Qun Yu
- a Institute of Psychology, Chinese Academy of Sciences , Beijing , China.,b Graduate School of Chinese Academy of Sciences , Beijing , China.,c Shanghai Lida Polytechnic Institute , Shanghai , China
| | - Lianqin Li
- d Department of Obstetrics and Gynecology , Yantai Affiliated Hospital of Binzhou Medical University , Yantai , China
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15
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Saxami G, Papadopoulou OS, Chorianopoulos N, Kourkoutas Y, Tassou CC, Galanis A. Molecular Detection of Two Potential Probiotic Lactobacilli Strains and Evaluation of Their Performance as Starter Adjuncts in Yogurt Production. Int J Mol Sci 2016; 17:E668. [PMID: 27153065 PMCID: PMC4881494 DOI: 10.3390/ijms17050668] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Revised: 04/24/2016] [Accepted: 04/28/2016] [Indexed: 12/14/2022] Open
Abstract
A molecular method for efficient and accurate detection and identification of two potential probiotic lactobacilli strains isolated from fermented olives, namely Lactobacillus pentosus B281 and Lb. plantarum B282, was developed in the present study. Random Amplified Polymorphic DNA (RAPD) analysis was performed, and strain specific primers were designed and applied in a multiplex polymerase chain reaction (PCR) assay. The specificity of the assay was tested and successfully confirmed in 27 and 22 lactobacilli strains for Lb. pentosus B281 and Lb. plantarum B282, respectively. Moreover, the two strains were used as starter cultures in yogurt production. Cell enumeration followed by multiplex PCR analysis demonstrated that the two strains were present in yogurt samples at levels ≥6 log CFU/g even after 35 days of storage at 4 °C. Microbiological analysis showed that lactobacilli and streptococci were present within usual levels, whereas enterobacteriaceae and yeast/mold counts were not detected as expected. Although the pH values of the novel products were slightly lower than the control ones, the yogurt containing the probiotic cultures scored similar values compared to the control in a series of sensory tests. Overall, these results demonstrated the possible use of the two strains as starter adjuncts in the production of yogurt with potential probiotic properties.
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Affiliation(s)
- Georgia Saxami
- Department of Molecular Biology and Genetics, Democritus University of Thrace, Alexandroupolis 68100, Greece.
| | - Olga S Papadopoulou
- Institute of Technology of Agricultural Products, Hellenic Agricultural Organization-DEMETER, Sof. Venizelou 1, Lycovrissi, Attiki 14123, Greece.
| | - Nikos Chorianopoulos
- Institute of Technology of Agricultural Products, Hellenic Agricultural Organization-DEMETER, Sof. Venizelou 1, Lycovrissi, Attiki 14123, Greece.
| | - Yiannis Kourkoutas
- Department of Molecular Biology and Genetics, Democritus University of Thrace, Alexandroupolis 68100, Greece.
| | - Chrysoula C Tassou
- Institute of Technology of Agricultural Products, Hellenic Agricultural Organization-DEMETER, Sof. Venizelou 1, Lycovrissi, Attiki 14123, Greece.
| | - Alex Galanis
- Department of Molecular Biology and Genetics, Democritus University of Thrace, Alexandroupolis 68100, Greece.
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16
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Lee O, Choi MR, Christov K, Ivancic D, Khan SA. Progesterone receptor antagonism inhibits progestogen-related carcinogenesis and suppresses tumor cell proliferation. Cancer Lett 2016; 376:310-7. [PMID: 27080304 DOI: 10.1016/j.canlet.2016.04.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Revised: 04/05/2016] [Accepted: 04/06/2016] [Indexed: 12/12/2022]
Abstract
PURPOSE Blockade of the progestogen-progesterone receptor (PR) axis is a novel but untested strategy for breast cancer prevention. We report preclinical data evaluating telapristone acetate (TPA), ulipristal acetate (UPA), and mifepristone. METHODS Tumors were induced with medroxyprogesterone acetate (MPA) plus 7,12-dimethylbenz[a]anthracene (DMBA) in mice, and MPA or progesterone plus N-methyl-N-nitrosourea (MNU) in rats. Mammary gland histology, tumor incidence, latency, multiplicity, burden and histology were evaluated, along with immunohistochemical labeling of pHH3 (proliferation), CD34 (angiogenesis), and estrogen and progesterone receptors (ER and PR). A concentration gradient of TPA, UPA, and mifepristone was tested for growth inhibition of T47D spheroids. RESULTS In mouse mammary glands, no tumors formed, but TPA opposed the pro-hyperplastic effects of MPA (p = 0.002). In rats, TPA decreased tumor incidence (p = 0.037 for MPA + TPA vs. MPA, and p = 0.032 for progesterone + TPA vs. progesterone) and tumor burden (p = 0.042 for progesterone + TPA vs. progesterone), with significant decreases in pHH3 and CD34 positive cells. TPA and UPA were superior to mifepristone in growth inhibition of T47D spheroids. CONCLUSION TPA has consistent anti-tumorigenic effects in several models, which are accompanied by decreases in cell proliferation, angiogenesis, and hormone receptor expression.
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Affiliation(s)
- Oukseub Lee
- Department of Surgery, Northwestern University, Chicago, IL, USA
| | - Mi-Ran Choi
- Department of Surgery, Northwestern University, Chicago, IL, USA
| | - Konstantin Christov
- Department of Pathology, University of Illinois at Chicago, Chicago, IL, USA
| | - David Ivancic
- Department of Surgery, Northwestern University, Chicago, IL, USA
| | - Seema A Khan
- Department of Surgery, Northwestern University, Chicago, IL, USA; Feinberg College of Medicine, The Robert H. Lurie Cancer Center, Northwestern University, Chicago, IL, USA.
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17
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Nagino T, Kano M, Masuoka N, Kaga C, Anbe M, Miyazaki K, Kamachi K, Isozaki M, Suzuki C, Kasuga C, Tanaka A. Intake of a fermented soymilk beverage containing moderate levels of isoflavone aglycones enhances bioavailability of isoflavones in healthy premenopausal Japanese women: a double-blind, placebo-controlled, single-dose, crossover trial. BIOSCIENCE OF MICROBIOTA FOOD AND HEALTH 2015; 35:9-17. [PMID: 26858926 PMCID: PMC4735029 DOI: 10.12938/bmfh.2015-011] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Accepted: 08/27/2015] [Indexed: 12/03/2022]
Abstract
This study aimed to investigate the bioavailability of serum isoflavones after the intake of soymilk
fermented by Lactobacillus casei strain Shirota containing 32.5% isoflavone aglycones (FSM)
or placebo soymilk containing no isoflavone aglycones (SM). In a double-blind, placebo-controlled,
single-dose, crossover trial, 7 healthy premenopausal Japanese women (mean age: 35.3 ± 11.0) consumed FSM or
SM on day 1 and crossed over to the other soymilk after a 6-day washout period. Serum isoflavones in blood
samples collected at 0, 1, 2, 3, 4, and 5 hr after intake were analyzed by liquid chromatography coupled with
tandem mass spectrometry. The area under the curve (AUC) values for the serum concentrations of genistein and
total isoflavones were significantly higher, by about 1.4-fold, up to 5 hr after FSM intake compared with SM
intake (each p<0.05), and that of daidzein tended to be higher after FSM intake. In addition, AUC analysis
of total isoflavones for individual subjects revealed that 5 out of 7 subjects had higher AUC values after FSM
intake compared with SM intake and that the 2 remaining subjects had similar AUC values. These 2 subjects had
higher AUC values after SM intake (mean, 2,502 ± 348) than those of the other subjects (mean, 1,158 ± 269).
These results indicate that the bioavailability of isoflavones, especially genistein, is enhanced after the
intake of FSM containing 32.5% isoflavone aglycones compared with intake of SM containing no isoflavone
aglycones and that the enhancement is observed in healthy premenopausal Japanese women whose isoflavone
absorption capacity is low after SM intake.
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Affiliation(s)
- Takayuki Nagino
- Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - Mitsuyoshi Kano
- Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - Norie Masuoka
- Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - Chiaki Kaga
- Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - Michitoshi Anbe
- Yakult Honsha Co., Ltd., 1-1-19 Higashi-shinbashi, Minato-ku, Tokyo 105-8660, Japan
| | - Kouji Miyazaki
- Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - Keiko Kamachi
- Nutrition Clinic of Kagawa Nutrition University, 3-24-3 Komagome, Toshima-ku, Tokyo 170-8481, Japan
| | - Mariko Isozaki
- Nutrition Clinic of Kagawa Nutrition University, 3-24-3 Komagome, Toshima-ku, Tokyo 170-8481, Japan
| | - Chigusa Suzuki
- Nutrition Clinic of Kagawa Nutrition University, 3-24-3 Komagome, Toshima-ku, Tokyo 170-8481, Japan
| | - Chikako Kasuga
- Nutrition Clinic of Kagawa Nutrition University, 3-24-3 Komagome, Toshima-ku, Tokyo 170-8481, Japan
| | - Akira Tanaka
- Nutrition Clinic of Kagawa Nutrition University, 3-24-3 Komagome, Toshima-ku, Tokyo 170-8481, Japan
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18
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Takagi A, Kano M, Kaga C. Possibility of breast cancer prevention: use of soy isoflavones and fermented soy beverage produced using probiotics. Int J Mol Sci 2015; 16:10907-20. [PMID: 25984609 PMCID: PMC4463682 DOI: 10.3390/ijms160510907] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2015] [Revised: 04/10/2015] [Accepted: 04/24/2015] [Indexed: 11/21/2022] Open
Abstract
The various beneficial effects of soybeans, which are rich in phytochemicals, have received much attention because of increasing health awareness. Soy milk that has been fermented using lactic acid bacteria has been used to prepare cheese-like products, tofu (bean-curd), and yogurt-type products. However, the distinct odor of soybeans has limited the acceptance of such foods, particularly in Western countries. In Japan, while tofu and soy milk have long been habitually consumed, the development of novel, palatable food products has not been easy. The unpleasant odor of soy milk and the absorption efficiency for isoflavones can be improved using a recently developed fermented soy milk beverage. Cancer has been the leading cause of death, and breast cancer is the most common malignancy among women. The most common type of breast cancer is estrogen-dependent, and the anti-estrogenic effects of isoflavones are known. The present review focuses on the characteristics of soy milk fermented using probiotics, an epidemiological study examining the incidence of breast cancer and soy isoflavone consumption, and a non-clinical study examining breast cancer prevention using fermented soy milk beverage.
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Affiliation(s)
- Akimitsu Takagi
- Pharmaceutical Research Laboratory, Yakult Central Institute, Tokyo 186-8650, Japan.
| | - Mitsuyoshi Kano
- Food Research Laboratory, Yakult Central Institute, Tokyo 186-8650, Japan.
| | - Chiaki Kaga
- Food Research Laboratory, Yakult Central Institute, Tokyo 186-8650, Japan.
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19
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Aragón F, Perdigón G, LeBlanc ADMD. Modification in the diet can induce beneficial effects against breast cancer. World J Clin Oncol 2014; 5:455-464. [PMID: 25114859 PMCID: PMC4127615 DOI: 10.5306/wjco.v5.i3.455] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2014] [Revised: 05/15/2014] [Accepted: 05/29/2014] [Indexed: 02/06/2023] Open
Abstract
The population tends to consume foods that in addition to their nutritional values can offer some benefits to their health. There are many epidemiological evidences and research studies in animal models suggesting that diet plays an important role in breast cancer prevention or progression. This review summarized some of the relevant researches about nutrition and cancer during the last years, especially in breast cancer. The analysis of probiotics and fermented products containing lactic acid bacteria in cancer prevention and/or treatment was especially discussed. It was observed that a balance of fatty acids similar to those of traditional Mediterranean diet, the consumption of fruits and vegetables, dietary fiber intake, vitamin supplementation are, along with the intake of probiotic products, the most extensively studied by the negative association to breast cancer risk. The consumption of probiotics and fermented products containing lactic acid bacteria was associated to reduce breast cancer risk in some epidemiological studies. The use of animal models showed the modulation of the host’s immune response as one of the important effects associated to the benefices observed with most probiotics. However; future assays in human are very important before the medical community can accept the addition of probiotic or fermented milks containing lactic acid bacteria as supplements for cancer patients.
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20
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Kaga C, Takagi A, Kano M, Kado S, Kato I, Sakai M, Miyazaki K, Nanno M, Ishikawa F, Ohashi Y, Toi M. Lactobacillus casei Shirota enhances the preventive efficacy of soymilk in chemically induced breast cancer. Cancer Sci 2013; 104:1508-14. [PMID: 23992486 DOI: 10.1111/cas.12268] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2013] [Revised: 08/08/2013] [Accepted: 08/09/2013] [Indexed: 01/01/2023] Open
Abstract
Soy foods are known to be effective for breast cancer prevention. The habitual consumption of soy isoflavones in combination with the probiotic Lactobacillus casei Shirota (LcS) was shown to decrease the risk of breast cancer occurrence in our previous population-based case-controlled study among Japanese women. The present study aimed to elucidate the cooperative prevention mechanism of soymilk and LcS using an animal carcinogenic model. Female Sprague-Dawley rats received a high-fat, AIN-76A diet containing soymilk, LcS, both soymilk and LcS, or none and were orally exposed to 2-amino-1-methyl-6-penylimidazo[4,5-b]pyridine at a dose of 85 mg/kg bodyweight eight times for 2 weeks. The development of palpable mammary tumors was monitored for 17 weeks. Tumor tissues were immunohistochemically examined for estrogen receptor (ER)-α, Ki-67 and CD34. Compared with the control group, the incidence and multiplicity of mammary tumors were reduced by soymilk alone and soymilk in combination with LcS, while tumor volume was decreased by LcS alone and LcS in combination with soymilk. An immunohistochemical analysis revealed that soymilk in combination with LcS more effectively reduced the numbers of ER-α-positive and Ki-67-positive cells in tumors than soymilk alone and that both soymilk and LcS inhibited tumor angiogenesis. These results demonstrated that soymilk prevents the development of mammary tumors and that LcS suppresses tumor growth, potentially enhancing the preventive efficacy of soymilk. The habitual consumption of LcS in combination with soymilk might be a beneficial dietary style for breast cancer prevention.
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Affiliation(s)
- Chiaki Kaga
- Yakult Central Institute for Microbiological Research, Tokyo, Japan
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