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Gu Y, Guo Y, Deng Y, Song H, Nian R, Liu W. Development of a highly sensitive immunoassay based on pentameric nanobodies for carcinoembryonic antigen detection. Anal Chim Acta 2023; 1279:341840. [PMID: 37827654 DOI: 10.1016/j.aca.2023.341840] [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: 09/15/2023] [Accepted: 09/21/2023] [Indexed: 10/14/2023]
Abstract
BACKGROUND Carcinoembryonic antigen-related cell adhesion molecule 5 (CEACAM-5) is a well-characterized biomarker for the clinical diagnosis of various cancers. Nanobodies, considered the smallest antibody fragments with intact antigen-binding capacity, have gained significant attention in disease diagnosis and therapy. Due to their peculiar properties, nanobodies have become promising alternative diagnostic reagents in immunoassay. However, nanobodies-based immunoassay is still hindered by small molecular size and low antigen capture efficacy. Therefore, there is a pressing need to develop novel nanobody-based immunoassays with superior performance. RESULTS A novel pentameric nanobodies-based immunoassay (PNIA) was developed with enhanced sensitivity and specificity for CEACAM-5 detection. The binding epitopes of three anti-CEACAM-5 nanobodies (Nb1, Nb2 and Nb3) were analyzed. To enhance the capture and detection efficacy of CEACAM-5 in the immunoassay, we engineered bispecific nanobodies (Nb1-Nb2-rFc) as the capture antibody, and developed the FITC-labeled pentameric nanobodies (Nb3-VT1B) as the detection antibody. The binding affinities of Nb1-Nb2-rFc (1.746 × 10-10) and Nb3-VT1B (1.279 × 10-11) were significantly higher than those of unmodified nanobodies (Nb1-rFc, 4.063 × 10-9; Nb2-rFc, 2.136 × 10-8; Nb3, 3.357 × 10-9). The PNIA showed a linear range of 0.625-160 ng mL-1 with a correlation coefficient R2 of 0.9985, and a limit of detection of 0.52 ng mL-1, which was 24-fold lower than the immunoassay using monomeric nanobody. The PNIA was validated with the spiked human serum. The average recoveries ranged from 91.8% to 102% and the coefficients of variation ranged from 0.026% to 0.082%. SIGNIFICANCE AND NOVELTY The advantages of nanobodies offer a promising alternative to conventional antibodies in disease diagnosis. The novel PNIA demonstrated superior sensitivity and high specificity for the detection of CEACAM-5 antigen. This bispecific or multivalent nanobody design will provide some new insights into the design of immunoassays for clinical diagnosis.
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Affiliation(s)
- Yi Gu
- CAS Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No. 189, Songling Road, Qingdao, 266101, China; University of Chinese Academy of Sciences, No 19(A), Yuquan Road, Beijing, 100049, China
| | - Yang Guo
- CAS Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No. 189, Songling Road, Qingdao, 266101, China; University of Chinese Academy of Sciences, No 19(A), Yuquan Road, Beijing, 100049, China
| | - Yang Deng
- CAS Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No. 189, Songling Road, Qingdao, 266101, China; University of Chinese Academy of Sciences, No 19(A), Yuquan Road, Beijing, 100049, China
| | - Haipeng Song
- Shenzhen Innova Nanobodi Co., Ltd, No. 1301 Guanguang Road, Shenzhen, 518110, China
| | - Rui Nian
- CAS Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No. 189, Songling Road, Qingdao, 266101, China; Shandong Energy Institute, No. 189, Songling Road, Qingdao, 266101, China; Qingdao New Energy Shandong Laboratory, No. 189, Songling Road, Qingdao, 266101, China.
| | - Wenshuai Liu
- CAS Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No. 189, Songling Road, Qingdao, 266101, China; Shandong Energy Institute, No. 189, Songling Road, Qingdao, 266101, China; Qingdao New Energy Shandong Laboratory, No. 189, Songling Road, Qingdao, 266101, China.
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Mohajershojai T, Spangler D, Chopra S, Frejd FY, Yazaki PJ, Nestor M. Enhanced Therapeutic Effects of 177Lu-DOTA-M5A in Combination with Heat Shock Protein 90 Inhibitor Onalespib in Colorectal Cancer Xenografts. Cancers (Basel) 2023; 15:4239. [PMID: 37686514 PMCID: PMC10486833 DOI: 10.3390/cancers15174239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 08/16/2023] [Accepted: 08/21/2023] [Indexed: 09/10/2023] Open
Abstract
Carcinoembryonic antigen (CEA) has emerged as an attractive target for theranostic applications in colorectal cancers (CRCs). In the present study, the humanized anti-CEA antibody hT84.66-M5A (M5A) was labeled with 177Lu for potential CRC therapy. Moreover, the novel combination of 177Lu-DOTA-M5A with the heat shock protein 90 inhibitor onalespib, suggested to mediate radiosensitizing properties, was assessed in vivo for the first time. M5A antibody uptake and therapeutic effects, alone or in combination with onalespib, were assessed in human CRC xenografts and visualized using SPECT/CT imaging. Although both 177Lu-DOTA-M5A and onalespib monotherapies effectively reduced tumor growth rates, the combination therapy demonstrated the most substantial impact, achieving a fourfold reduction in tumor growth compared to the control group. Median survival increased by 33% compared to 177Lu-DOTA-M5A alone, and tripled compared to control and onalespib groups. Importantly, combination therapy yielded comparable or superior effects to the double dose of 177Lu-DOTA-M5A monotherapy. 177Lu-DOTA-M5A increased apoptotic cell levels, indicating its potential to induce tumor cell death. These findings show promise for 177Lu-DOTA-M5A as a CRC therapeutic agent, and its combination with onalespib could significantly enhance treatment efficacy. Further in vivo studies are warranted to validate these findings fully and explore the treatment's potential for clinical use.
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Affiliation(s)
- Tabassom Mohajershojai
- Department of Immunology, Genetics and Pathology, Uppsala University, 751 85 Uppsala, Sweden; (T.M.); (S.C.); (F.Y.F.)
| | - Douglas Spangler
- Department of Public Health and Caring Sciences, Uppsala University, 751 22 Uppsala, Sweden;
| | - Saloni Chopra
- Department of Immunology, Genetics and Pathology, Uppsala University, 751 85 Uppsala, Sweden; (T.M.); (S.C.); (F.Y.F.)
| | - Fredrik Y. Frejd
- Department of Immunology, Genetics and Pathology, Uppsala University, 751 85 Uppsala, Sweden; (T.M.); (S.C.); (F.Y.F.)
| | - Paul J. Yazaki
- Department of Immunology & Theranostics, Beckman Research Institute of the City of Hope, Duarte, CA 91010, USA;
| | - Marika Nestor
- Department of Immunology, Genetics and Pathology, Uppsala University, 751 85 Uppsala, Sweden; (T.M.); (S.C.); (F.Y.F.)
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CEACAMS 1, 5, and 6 in disease and cancer: interactions with pathogens. Genes Cancer 2023; 14:12-29. [PMID: 36741860 PMCID: PMC9891707 DOI: 10.18632/genesandcancer.230] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 01/20/2023] [Indexed: 02/04/2023] Open
Abstract
The CEA family comprises 18 genes and 11 pseudogenes located at chromosome 19q13.2 and is divided into two main groups: cell surface anchored CEA-related cell adhesion molecules (CEACAMs) and the secreted pregnancy-specific glycoproteins (PSGs). CEACAMs are highly glycosylated cell surface anchored, intracellular, and intercellular signaling molecules with diverse functions, from cell differentiation and transformation to modulating immune responses associated with infection, inflammation, and cancer. In this review, we explore current knowledge surrounding CEACAM1, CEACAM5, and CEACAM6, highlight their pathological significance in the areas of cancer biology, immunology, and inflammatory disease, and describe the utility of murine models in exploring questions related to these proteins.
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Tao J, Yin L, Wu A, Zhang J, Zhang J, Shi H, Liu S, Niu L, Xu L, Feng Y, Lian S, Li L, Zeng L, Meng X, Zhou X, Liu T, Zhang L. PDIA2 Bridges Endoplasmic Reticulum Stress and Metabolic Reprogramming During Malignant Transformation of Chronic Colitis. Front Oncol 2022; 12:836087. [PMID: 35860571 PMCID: PMC9289542 DOI: 10.3389/fonc.2022.836087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 06/02/2022] [Indexed: 12/03/2022] Open
Abstract
Background Chronic inflammation contributes to approximately 20% of cancers; the underlying mechanisms are still elusive. Here, using an animal model of colitis to colon-cancerous transformation, we demonstrated that endoplasmic reticulum (ER) stress couples with metabolic reprogramming to promote a malignant transformation of chronic inflammation. Methods The animal model for chronic colitis to colon-cancerous transformation was established in C57BL/6N mice by azoxymethane (AOM) and dextran sodium sulfate (DSS) treatments. The differential proteins in control and AOM/DSS-treated colon mucosa were determined using proteomic analysis; the kinetics of metabolic modifications were monitored by mitochondrial oxygen flux, extracellular acidification, and targeted metabolomics; the molecule linker between ER stress and metabolic modifications were identified by coimmunoprecipitation, KEGG pathway analysis, and the subcutaneous tumor model using gene-specific knockdown colon cancer cells. Tissue array analysis were used to evaluate the differential protein in cancer and cancer-adjacent tissues. Results AOM/DSS treatment induced 38 tumors in 10 mice at the 14th week with the mean tumor size 9.35 ± 3.87 mm2, which was significantly decreased to 5.85 ± 0.95 mm2 by the ER stress inhibitor 4-phenylbutyric acid (4PBA). Seven differential proteins were determined from control (1,067 ± 48) and AOM/DSS-treated mucosa (1,077 ± 59); the level of ER protein PDIA2 (protein disulfide isomerase-associated 2) was increased over 7-fold in response to AOM/DSS treatment. PDIA2 interacted with 420 proteins that were involved in 8 signaling pathways, in particular with 53 proteins in metabolic pathways. PDIA2 translocated from ER to mitochondria and interacted with the components of complexes I and II to inhibit oxophosphorylation but increase glycolysis. Knockdown PDIA2 in colon cancer cells restored the metabolic imbalance and significantly repressed tumor growth in the xenograft animal model. 4PBA therapy inhibited the AOM/DSS-mediated overexpression of PDIA2 and metabolic modifications and suppressed colon cancer growth. In clinic, PDIA2 was overexpressed in colon cancer tissues rather than cancer-adjacent tissues and was related with the late stages and lymph node metastasis of colon cancer. Conclusions Persistent ER stress reprograms the metabolism to promote the malignant transformation of chronic colitis; PDIA2 serves as a molecule linker between ER stress and metabolic reprogramming. The inhibition of ER stress restores metabolic homeostasis and attenuates the cancerous transformation of chronic inflammation.
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Affiliation(s)
- Jie Tao
- Scientific Research Institute, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Lin Yin
- Scientific Research Institute, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Ao Wu
- Scientific Research Institute, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Jiaoli Zhang
- Scientific Research Institute, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Jingpu Zhang
- Scientific Research Institute, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Huichun Shi
- Scientific Research Institute, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Siyuan Liu
- The College of Information, Mechanical and Electrical Engineering, Shanghai Normal University, Shanghai, China
| | - Liangfei Niu
- Scientific Research Institute, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Li Xu
- Scientific Research Institute, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Yanling Feng
- Clinical Pathology Laboratory, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Shixian Lian
- Department of Surgery, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Lei Li
- Department of Surgery, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Liyan Zeng
- Department of Clinical Research Center, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Xianmin Meng
- Department of Clinical Research Center, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Xiaohui Zhou
- Animal Research Center, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Tiefu Liu
- Scientific Research Institute, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
- *Correspondence: Lijun Zhang, ; Tiefu Liu,
| | - Lijun Zhang
- Scientific Research Institute, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
- Department of Clinical Research Center, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
- *Correspondence: Lijun Zhang, ; Tiefu Liu,
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Bisht V, Nash K, Xu Y, Agarwal P, Bosch S, Gkoutos GV, Acharjee A. Integration of the Microbiome, Metabolome and Transcriptomics Data Identified Novel Metabolic Pathway Regulation in Colorectal Cancer. Int J Mol Sci 2021; 22:5763. [PMID: 34071236 PMCID: PMC8198673 DOI: 10.3390/ijms22115763] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 05/25/2021] [Accepted: 05/26/2021] [Indexed: 12/12/2022] Open
Abstract
Integrative multiomics data analysis provides a unique opportunity for the mechanistic understanding of colorectal cancer (CRC) in addition to the identification of potential novel therapeutic targets. In this study, we used public omics data sets to investigate potential associations between microbiome, metabolome, bulk transcriptomics and single cell RNA sequencing datasets. We identified multiple potential interactions, for example 5-aminovalerate interacting with Adlercreutzia; cholesteryl ester interacting with bacterial genera Staphylococcus, Blautia and Roseburia. Using public single cell and bulk RNA sequencing, we identified 17 overlapping genes involved in epithelial cell pathways, with particular significance of the oxidative phosphorylation pathway and the ACAT1 gene that indirectly regulates the esterification of cholesterol. These findings demonstrate that the integration of multiomics data sets from diverse populations can help us in untangling the colorectal cancer pathogenesis as well as postulate the disease pathology mechanisms and therapeutic targets.
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Affiliation(s)
- Vartika Bisht
- Institute of Cancer and Genomic Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2TH, UK; (V.B.); (Y.X.); (G.V.G.)
- MRC Health Data Research UK (HDR UK), Midlands B15 2TT, UK
| | - Katrina Nash
- College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2TT, UK;
| | - Yuanwei Xu
- Institute of Cancer and Genomic Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2TH, UK; (V.B.); (Y.X.); (G.V.G.)
- MRC Health Data Research UK (HDR UK), Midlands B15 2TT, UK
- Institute of Translational Medicine, University Hospitals Birmingham NHS, Foundation Trust, Birmingham B15 2TT, UK
| | - Prasoon Agarwal
- KTH Royal Institute of Technology, School of Electrical Engineering and Computer Science, 100 44 Stockholm, Sweden;
- Science for Life Laboratory, 171 65 Solna, Sweden
| | - Sofie Bosch
- Department of Gastroenterology and Hepatology, AG&M research institute, Amsterdam UMC, 1105 AZ Amsterdam, The Netherlands;
| | - Georgios V. Gkoutos
- Institute of Cancer and Genomic Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2TH, UK; (V.B.); (Y.X.); (G.V.G.)
- MRC Health Data Research UK (HDR UK), Midlands B15 2TT, UK
- Institute of Translational Medicine, University Hospitals Birmingham NHS, Foundation Trust, Birmingham B15 2TT, UK
- NIHR Surgical Reconstruction and Microbiology Research Centre, University Hospital Birmingham, Birmingham B15 2WB, UK
- NIHR Experimental Cancer Medicine Centre, Birmingham B15 2TT, UK
- NIHR Biomedical Research Centre, University Hospital Birmingham, Birmingham B15 2TT, UK
| | - Animesh Acharjee
- Institute of Cancer and Genomic Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2TH, UK; (V.B.); (Y.X.); (G.V.G.)
- MRC Health Data Research UK (HDR UK), Midlands B15 2TT, UK
- Institute of Translational Medicine, University Hospitals Birmingham NHS, Foundation Trust, Birmingham B15 2TT, UK
- NIHR Surgical Reconstruction and Microbiology Research Centre, University Hospital Birmingham, Birmingham B15 2WB, UK
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Zhang X, Han X, Zuo P, Zhang X, Xu H. CEACAM5 stimulates the progression of non-small-cell lung cancer by promoting cell proliferation and migration. J Int Med Res 2020; 48:300060520959478. [PMID: 32993395 PMCID: PMC7536504 DOI: 10.1177/0300060520959478] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Objective To detect the expression of CEA-related cell adhesion molecule 5 (CEACAM5) in
non-small-cell lung cancer (NSCLC) and explore its function in the
progression and development of NSCLC. Methods qRT-PCR and immunohistochemistry were performed to detect CEACAM5 expression
in human NSCLC tissues and cell lines. The correlation between CEACAM5
expression and the clinicopathological features of patients with NSCLC was
also investigated. MTT, colony formation, wound healing, and immunoblot
assays were performed to detect the functions of CEACAM5 in NSCLC cells
in vitro, and immunoblotting was used to detect the
effects of CEACAM5 on p38–Smad2/3 signaling. Results CEACAM5 expression was elevated in human NSCLC tissues and cells. We further
found that CEACAM expression was correlated with clinicopathological
features including T division, lymph invasion, and histological grade in
patients with NSCLC. The in vitro assays confirmed that
CEACAM5 depletion inhibited the proliferation and migration of NSCLC cells
by activating p38–Smad2/3 signaling. We verified the involvement of CEACAM5
in the suppression of NSCLC tumor growth in mice. Conclusion CEACAM5 stimulated the progression of NSCLC by promoting cell proliferation
and migration in vitro and in vivo.
CEACAM5 may serve as a potential therapeutic target for the treatment of
NSCLC.
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Affiliation(s)
- Xinwen Zhang
- Department of General Practice, Linyi Central Hospital, Linyi, China
| | - Xingbao Han
- Department of Urology, Linyi Central Hospital, Linyi, China
| | - Pengli Zuo
- Central Laboratory, Linyi Central Hospital, Linyi, China
| | - Xiuying Zhang
- Department of Clinical Lab, Linyi Central Hospital, Linyi, China
| | - Hongbang Xu
- Department of Respiratory Medicine, Linyi Central Hospital, Linyi, China
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Oh NS, Joung JY, Lee JY, Kim YJ, Kim Y, Kim SH. A synbiotic combination of Lactobacillus gasseri 505 and Cudrania tricuspidata leaf extract prevents hepatic toxicity induced by colorectal cancer in mice. J Dairy Sci 2020; 103:2947-2955. [PMID: 32008775 DOI: 10.3168/jds.2019-17411] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 11/19/2019] [Indexed: 12/17/2022]
Abstract
Colorectal cancer (CRC) is known to be a life-threatening disease and commonly leads to metastasis in the liver. Fermented milk acts as an effective carrier for probiotic strains, whose consumption improves host health. Our previous study indicated that fermented milk that included a synbiotic combination of Lactobacillus gasseri 505 (505) and Cudrania tricuspidata leaf extract (CT) resulted in significantly greater anti-oxidative effects than fermented milk without CT. Therefore, we hypothesized that fermented milk containing CT and 505 (FCT) could result in hepatoprotective effects against CRC-induced liver metastasis. Liver inflammation and CRC were induced in male C57BL/6J mice, using azoxymethane/dextran sodium sulfate, and 505, CT, and FCT were administered to the 3 sample-treated 505, CT, and FCT groups, respectively, for 10 wk. The results showed that FCT treatment significantly reduced serum aspartate aminotransferase and alanine aminotransferase concentrations and elevated albumin concentrations. Moreover, the results of histological analysis showed that hepatic steatosis was notably reduced in the FCT group. Among the 3 sample-treated groups, the expression of mRNA associated with enzymes showing anti-oxidative activities, such as superoxide dismutase, catalase, and glutathione reductase, was the highest in the FCT-treated mice. In addition, FCT administration resulted in the greatest anti-inflammatory activity, as inflammatory marker levels (i.e., tumor necrosis factor-α, cyclooxygenase-2, myeloperoxidase, and nuclear factor kappa-light-chain enhancer of activated B cells) were significantly downregulated at the mRNA level and the expression of proteins associated with the nuclear factor kappa-light-chain enhancer of activated B cells and mitogen-activated protein kinase signaling pathways was suppressed by FCT. Therefore, this study demonstrated that fermented milk containing novel synbiotics has the potential to prevent hepatic toxicity induced because of CRC owing to its enhanced anti-oxidative and anti-inflammatory activities.
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Affiliation(s)
- Nam Su Oh
- Department of Food and Biotechnology, Korea University, Sejong 30019, Korea
| | - Jae Yeon Joung
- R&D Center, Seoul Dairy Cooperative, Ansan, Kyunggi 425-839, Korea; Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, 02841, Korea
| | - Ji Young Lee
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, 02841, Korea
| | - Youn Jeong Kim
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, 02841, Korea
| | - Younghoon Kim
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, Seoul National University, Seoul 08826, Korea.
| | - Sae Hun Kim
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, Seoul National University, Seoul 08826, Korea.
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Yu LCH. Microbiota dysbiosis and barrier dysfunction in inflammatory bowel disease and colorectal cancers: exploring a common ground hypothesis. J Biomed Sci 2018; 25:79. [PMID: 30413188 PMCID: PMC6234774 DOI: 10.1186/s12929-018-0483-8] [Citation(s) in RCA: 220] [Impact Index Per Article: 36.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Accepted: 10/29/2018] [Indexed: 02/06/2023] Open
Abstract
Inflammatory bowel disease (IBD) is a multifactorial disease which arises as a result of the interaction of genetic, environmental, barrier and microbial factors leading to chronic inflammation in the intestine. Patients with IBD had a higher risk of developing colorectal carcinoma (CRC), of which the subset was classified as colitis-associated cancers. Genetic polymorphism of innate immune receptors had long been considered a major risk factor for IBD, and the mutations were also recently observed in CRC. Altered microbial composition (termed microbiota dybiosis) and dysfunctional gut barrier manifested by epithelial hyperpermeability and high amount of mucosa-associated bacteria were observed in IBD and CRC patients. The findings suggested that aberrant immune responses to penetrating commensal microbes may play key roles in fueling disease progression. Accumulative evidence demonstrated that mucosa-associated bacteria harbored colitogenic and protumoral properties in experimental models, supporting an active role of bacteria as pathobionts (commensal-derived opportunistic pathogens). Nevertheless, the host factors involved in bacterial dysbiosis and conversion mechanisms from lumen-dwelling commensals to mucosal pathobionts remain unclear. Based on the observation of gut leakiness in patients and the evidence of epithelial hyperpermeability prior to the onset of mucosal histopathology in colitic animals, it was postulated that the epithelial barrier dysfunction associated with mucosal enrichment of specific bacterial strains may predispose the shift to disease-associated microbiota. The speculation of leaky gut as an initiating factor for microbiota dysbiosis that eventually led to pathological consequences was proposed as the "common ground hypothesis", which will be highlighted in this review. Overall, the understanding of the core interplay between gut microbiota and epithelial barriers at early subclinical phases will shed light to novel therapeutic strategies to manage chronic inflammatory disorders and colitis-associated cancers.
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Affiliation(s)
- Linda Chia-Hui Yu
- Graduate Institute of Physiology, National Taiwan University College of Medicine, Suite 1020, #1 Jen-Ai Rd. Sec. 1, Taipei, 100, Taiwan, Republic of China.
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Yu LCH, Wei SC, Ni YH. Impact of microbiota in colorectal carcinogenesis: lessons from experimental models. Intest Res 2018; 16:346-357. [PMID: 30090033 PMCID: PMC6077307 DOI: 10.5217/ir.2018.16.3.346] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 05/28/2018] [Accepted: 05/29/2018] [Indexed: 02/07/2023] Open
Abstract
A role of gut microbiota in colorectal cancer (CRC) growth was first suggested in germ-free rats almost 50 years ago, and the existence of disease-associated bacteria (termed pathobionts) had becoming increasingly evident from experimental data of fecal transplantation, and microbial gavage or monoassociation. Altered bacterial compositions in fecal and mucosal specimens were observed in CRC patients compared to healthy subjects. Microbial fluctuations were found at various cancer stages; an increase of bacterial diversity was noted in the adenoma specimens, while a reduction of bacterial richness was documented in CRC samples. The bacterial species enriched in the human cancerous tissues included Escherichia coli, Fusobacterium nucleatum, and enterotoxigenic Bacteroides fragilis. The causal relationship of gut bacteria in tumorigenesis was established by introducing particular bacterial strains in in situ mouse CRC models. Detailed experimental protocols of bacterial gavage and the advantages and caveats of different experimental models are summarized in this review. The microbial genotoxins, enterotoxins, and virulence factors implicated in the mechanisms of bacteria-driven tumorigenesis are described. In conclusion, intestinal microbiota is involved in colon tumorigenesis. Bacteria-targeting intervention would be the next challenge for CRC.
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Affiliation(s)
- Linda Chia-Hui Yu
- Graduate Institute of Physiology, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Shu-Chen Wei
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Yen-Hsuan Ni
- Department of Pediatrics, National Taiwan University Hospital, Taipei, Taiwan
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Abdella EM, Mahmoud AM, El-Derby AM. Brown seaweeds protect against azoxymethane-induced hepatic repercussions through up-regulation of peroxisome proliferator-activated receptor gamma and attenuation of oxidative stress. PHARMACEUTICAL BIOLOGY 2016; 54:2496-2504. [PMID: 27050090 DOI: 10.3109/13880209.2016.1160938] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
CONTEXT Seaweeds of the genera Turbinaria and Padina have long been used as food and in traditional medicine for treating several diseases. OBJECTIVE The current study determines the protective efficacy of the brown seaweeds Turbinaria ornata (Turner) J. Agardh (Sargassaceae) and Padina pavonia (Linnaeus) J.V. Lamouroux (Dictyotaceae) against liver injury induced by azoxymethane (AOM). MATERIALS AND METHODS Male Swiss mice received 10 mg/kg AOM once a week for two consecutive weeks and then 100 mg/kg daily dose of either T. ornata or P. pavonia ethanolic extract. Thirteen weeks after the first AOM administration and 24 h after the last treatment, overnight fasted mice were sacrificed and samples collected. RESULTS Compared with the AOM group, both T. ornata and P. pavonia significantly decreased the activity of aminotransferases and the concentration of bilirubin while increased albumin levels in the serum. The antioxidative effect of both extracts was observed from the increased activity of superoxide dismutase and glutathione peroxidase activities in the liver, both of which were decreased by AOM. Moreover, the levels of malondialdehyde and nitric oxide were reduced, and histological findings also confirmed the antihepatotoxic activity. In addition, treatment with T. ornata and P. pavonia significantly increased PPARγ and decreased NF-κB expression in the liver of AOM-administered mice. DISCUSSION AND CONCLUSION Our findings indicate that the protective function of T. ornata and P. pavonia on AOM-induced liver injury may be possibly exerted by multiple pathways including abolishment of inflammation and oxidative damage, and activation of PPARγ.
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Affiliation(s)
- Ehab M Abdella
- a Cell Biology and Genetics Division, Zoology Department, Faculty of Science , Beni-Suef University , Beni-Suef , Egypt
| | - Ayman M Mahmoud
- b Physiology Division, Zoology Department, Faculty of Science , Beni-Suef University , Beni-Suef , Egypt
| | - Azza M El-Derby
- a Cell Biology and Genetics Division, Zoology Department, Faculty of Science , Beni-Suef University , Beni-Suef , Egypt
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Zhou J, Fan X, Chen N, Zhou F, Dong J, Nie Y, Fan D. Identification of CEACAM5 as a Biomarker for Prewarning and Prognosis in Gastric Cancer. J Histochem Cytochem 2015; 63:922-30. [PMID: 26374829 DOI: 10.1369/0022155415609098] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Accepted: 09/04/2015] [Indexed: 12/27/2022] Open
Abstract
MGd1, a monoclonal antibody raised against gastric cancer cells, possesses a high degree of specificity for gastric cancer (GC). Here we identified that the antigen of MGd1 is CEACAM5, and used MGd1 to investigate the expression of CEACAM5 in non-GC and GC tissues (N=643), as a biomarker for prewarning and prognosis. The expression of CEACAM5 was detected by immunohistochemistry in numerous tissues; its clinicopathological correlation was statistically analyzed. CEACAM5 expression was increased progressively from normal gastric mucosa to chronic atrophic gastritis, intestinal metaplasia, dysplasia and finally to GC (p<0.05). In gastric precancerous lesions (intestinal metaplasia and dysplasia), CEACAM5-positive patients had a higher risk of developing GC as compared with CEACAM5-negative patients (OR = 12.68, p<0.001). Besides, CEACAM5 was found positively correlated with invasion depth of gastric adenocarcinoma (p<0.001). In survival analysis, CEACAM5 was demonstrated to be an independent prognostic predictor for patients with GC of clinical stage IIIA/IV (p=0.033). Our results demonstrate that CEACAM5 is a promising biomarker for GC prewarning and prognostic evaluation.
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Affiliation(s)
- Jinfeng Zhou
- State Key Laboratory of Cancer Biology & Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China (JZ, NC, FZ, JD, YN, DF)
| | - Xing Fan
- Institute of Plastic Surgery of the Chinese PLA, Fourth Military Medical University, Xi'an, China (XF)
| | - Ning Chen
- State Key Laboratory of Cancer Biology & Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China (JZ, NC, FZ, JD, YN, DF)
| | - Fenli Zhou
- State Key Laboratory of Cancer Biology & Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China (JZ, NC, FZ, JD, YN, DF)
| | - Jiaqiang Dong
- State Key Laboratory of Cancer Biology & Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China (JZ, NC, FZ, JD, YN, DF)
| | - Yongzhan Nie
- State Key Laboratory of Cancer Biology & Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China (JZ, NC, FZ, JD, YN, DF)
| | - Daiming Fan
- State Key Laboratory of Cancer Biology & Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China (JZ, NC, FZ, JD, YN, DF)
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Brewers' Rice: A By-Product from Rice Processing Provides Natural Hepatorenal Protection in Azoxymethane-Induced Oxidative Stress in Rats. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2015; 2015:539798. [PMID: 26257841 PMCID: PMC4516842 DOI: 10.1155/2015/539798] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Accepted: 06/30/2015] [Indexed: 02/07/2023]
Abstract
Brewers' rice, which is known locally as temukut, is a mixture of broken rice, rice bran, and rice germ. Our present study was designed to identify the effect of brewers' rice on the attenuation of liver and kidney damage induced by azoxymethane (AOM). Alanine transaminase (ALT), alkaline phosphatase (ALP), aspartate transaminase (AST), creatinine, and urea were evaluated to understand potential hepatoprotective effects and the ability of brewers' rice to attenuate kidney pathology induced by AOM treatment. Liver and kidney tissues were evaluated by hematoxylin and eosin (H&E) staining. Overall analyses revealed that brewers' rice improved the levels of serum markers in a manner associated with better histopathological outcomes, which indicated that brewers' rice could enhance recovery from hepatocyte and kidney damage. Taken together, these results suggest that brewers' rice could be used in future applications to combat liver and kidney disease.
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Cramer JM, Thompson T, Geskin A, LaFramboise W, Lagasse E. Distinct human stem cell populations in small and large intestine. PLoS One 2015; 10:e0118792. [PMID: 25751518 PMCID: PMC4353627 DOI: 10.1371/journal.pone.0118792] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2014] [Accepted: 01/06/2015] [Indexed: 12/22/2022] Open
Abstract
The intestine is composed of an epithelial layer containing rapidly proliferating cells that mature into two regions, the small and the large intestine. Although previous studies have identified stem cells as the cell-of-origin for intestinal epithelial cells, no studies have directly compared stem cells derived from these anatomically distinct regions. Here, we examine intrinsic differences between primary epithelial cells isolated from human fetal small and large intestine, after in vitro expansion, using the Wnt agonist R-spondin 2. We utilized flow cytometry, fluorescence-activated cell sorting, gene expression analysis and a three-dimensional in vitro differentiation assay to characterize their stem cell properties. We identified stem cell markers that separate subpopulations of colony-forming cells in the small and large intestine and revealed important differences in differentiation, proliferation and disease pathways using gene expression analysis. Single cells from small and large intestine cultures formed organoids that reflect the distinct cellular hierarchy found in vivo and respond differently to identical exogenous cues. Our characterization identified numerous differences between small and large intestine epithelial stem cells suggesting possible connections to intestinal disease.
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Affiliation(s)
- Julie M. Cramer
- Department of Pathology, University of Pittsburgh School of Medicine, 200 Lothrop Street, Pittsburgh, PA, 15261, United States of America
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, 450 Technology Drive, Suite 300, Pittsburgh, PA, 15219, United States of America
| | - Timothy Thompson
- Department of Bioengineering, University of Pittsburgh, 3700 O'Hara St, Pittsburgh, PA, 15261, United States of America
| | - Albert Geskin
- Department of Pathology, University of Pittsburgh, Shadyside Hospital, West Wing, WG 02.11, 5230 Center Avenue, Pittsburgh, PA 15232, United States of America
| | - William LaFramboise
- Department of Pathology, University of Pittsburgh, Shadyside Hospital, West Wing, WG 02.11, 5230 Center Avenue, Pittsburgh, PA 15232, United States of America
| | - Eric Lagasse
- Department of Pathology, University of Pittsburgh School of Medicine, 200 Lothrop Street, Pittsburgh, PA, 15261, United States of America
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, 450 Technology Drive, Suite 300, Pittsburgh, PA, 15219, United States of America
- * E-mail:
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14
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Usefulness of traditional serum biomarkers for management of breast cancer patients. BIOMED RESEARCH INTERNATIONAL 2013; 2013:685641. [PMID: 24350285 PMCID: PMC3856124 DOI: 10.1155/2013/685641] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2013] [Revised: 09/06/2013] [Accepted: 09/09/2013] [Indexed: 12/30/2022]
Abstract
The measurement of serum tumor markers levels in breast cancer (BC) patients is an economic and noninvasive diagnostic assay frequently requested by clinical oncologists to get information about the presence or absence of disease as well as its evolution. Despite their wide use in clinical practice, there is still an intense debate between scientific organizations about the real usefulness for patient monitoring during followup as well as response to therapy evaluation in case of advanced BC. In this review, we want to highlight the current recommendations published by scientific organizations about the use of “established” BC serum markers (CEA, TPA, TPS, CIFRA-21, CA15-3, and s-HER2) in clinical oncology practice. Moreover, we will focus on recent papers evidencing the usefulness of tumor markers levels measurement as a guide for the prescription and diagnostic integration of molecular imaging exams such as those performed by hybrid 18-fluorofeoxyglucose-positron emission tomography with integrated computed tomography. This technology is nowadays able to detect early cancer lesions undetectable by conventional morphological imaging investigation and most likely responsible for increasing of serum tumor markers levels.
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Lahouar L, Ghrairi F, Arem AE, Sghaeir W, Felah ME, Salem HB, Sriha B, Achour L. Attenuation of histopathological alterations of colon, liver and lung by dietary fibre of barley Rihane in azoxymethane-treated rats. Food Chem 2013; 149:271-6. [PMID: 24295706 DOI: 10.1016/j.foodchem.2013.10.101] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2013] [Revised: 09/11/2013] [Accepted: 10/21/2013] [Indexed: 11/27/2022]
Abstract
This study was carried out to determine the effect of dietary fibre (DF) of barley Rihane (BR) in the attenuation of colon, liver and lung histopathology alterations induced by azoxymethane (AOM) in rats. Rats were fed a control (C) or experimental diet containing 30% of BR. The intended rats for cancer treatment received two successive subcutaneous injections of azoxymethane (AOM) at 20mg/kg body weight. The colons were analyzed for crypt multiplicity after 12 weeks of treatment. A histological study of the colon, liver and lungs was determined. The results showed that the BR diet significantly reduced the number of aberrant crypt per focus and altered their distribution. In addition, DF of BR increased significantly the mucus secretion compared to control group. The use of the AOM as colon specific carcinogen substance altered the liver and lung architectures, whereas the presence of DF of BR could be a protective factor for these organs.
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Affiliation(s)
- Lamia Lahouar
- Unité de Recherche 03/UR/09-01 «Génome, Diagnostic Immunitaire et valorisation», Institut Supérieur de Biotechnologie de Monastir, Université de Monastir, Avenue Tahar Haddad, BP 74, 5000 Monastir, Tunisia.
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16
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Zariri A, van Dijken H, Hamstra HJ, van der Flier M, Vidarsson G, van Putten JPM, Boog CJP, van den Dobbelsteen G, van der Ley P. Expression of human CEACAM1 in transgenic mice limits the Opa-specific immune response against meningococcal outer membrane vesicles. Vaccine 2013; 31:5585-93. [PMID: 23933369 DOI: 10.1016/j.vaccine.2013.07.069] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2013] [Revised: 07/18/2013] [Accepted: 07/25/2013] [Indexed: 10/26/2022]
Abstract
Outer membrane vesicles (OMVs) have been extensively investigated as meningococcal vaccine candidates. Among their major components are the opacity (Opa) proteins, a family of surface-exposed outer membrane proteins important for bacterial adherence and entry into host cells. Many Opa-dependent interactions are mediated through the carcinoembryonic antigen-related cell adhesion molecule (CEACAM) family of receptors. Importantly, binding of Opa to CEACAM1 has been reported to suppress human CD4 T cell proliferation in vitro in response to OMV preparations. This raises the question whether OMV vaccines should contain Opa proteins at all. Until now it has been difficult to answer this question, as the proposed immunosuppressive effect was only demonstrated with human cells in vitro, while immunization experiments in mice are not informative because the Opa interaction is specific for human CEACAM1. In the present study we have used Opa+ and Opa- OMVs for immunization experiments in a human CEACAM1 transgenic mouse model. OMVs were prepared from a meningococcal strain H44/76 variant expressing the CEACAM1-binding OpaJ protein, and from an isogenic variant in which all opa genes have been inactivated. Both the CEACAM1 expressing transgenic mice and their congenic littermates lacking it were immunized twice with the OMV preparations, and the sera were analyzed for bactericidal activity and ELISA antibody titres. Total IgG antibodies against the OMVs were similar in both mouse strains. Yet the titres for IgG antibodies specific for purified OpaJ protein were significantly lower in the mice expressing human CEACAM1 than in the nontransgenic mice. No significant differences were found in bactericidal titres among the four groups. Overall, these data indicate that expression of human CEACAM1 confers a reduced Opa-specific antibody response in vivo without affecting the overall immune response against other OMV antigens.
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Affiliation(s)
- Afshin Zariri
- Institute for Translational Vaccinology (InTraVacc), Antonie van Leeuwenhoeklaan 9, 3720 AL Bilthoven, The Netherlands; Department of Infectious Diseases and Immunology, Utrecht University, 3584 CL Utrecht, The Netherlands.
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17
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Beauchemin N, Arabzadeh A. Carcinoembryonic antigen-related cell adhesion molecules (CEACAMs) in cancer progression and metastasis. Cancer Metastasis Rev 2013; 32:643-71. [DOI: 10.1007/s10555-013-9444-6] [Citation(s) in RCA: 288] [Impact Index Per Article: 26.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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18
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Effect of dietary fibre of barley variety 'Rihane' on azoxymethane-induced aberrant crypt foci development and on colonic microbiota diversity in rats. Br J Nutr 2012; 108:2034-42. [PMID: 22414704 DOI: 10.1017/s0007114512000219] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Many epidemiological and experimental studies have suggested an important role for dietary fibre (DF) of cereals in the prevention of colon cancer. The objective of the present study was to explain the effects of the DF of barley Rihane (BR) on azoxymethane (AOM)-induced aberrant crypt foci (ACF) and colonic bacterial diversity in rats. Following an acclimatisation period, rats were divided into four groups and fed a control (C) diet or experimental diet containing 30 % of BR. DF content in the experimental diet was twice that of the C diet (total DF was 8·69 % in the C diet and 15·24 % in the BR diet). At 7 and 8 weeks of age, rats received two successive subcutaneous injections of AOM at 20 mg/kg body weight. At 12 weeks after the first injection, ten animals from each group were killed. The BR diet decreased colonic pH (P < 0·05) compared with the C diet. The total number of ACF observed decreased considerably in the BR/AOM group compared with the C/AOM group (P < 0·05). Comparison of similarity coefficients showed variability of colonic microbiota species between the different groups. In addition, we showed inter-individual variability within the same group. This similarity was affected by BR and AOM. The present results show that bifidobacteria numbers were lower in rats fed the BR diet compared with those fed the C diet. However, the number of enterobacteria in colonic content was increased (P < 0·05) in the BR group compared with the C group. The results from the present study show that the DF of BR reduced the incidence of AOM-induced ACF and increased microbiota biodiversity.
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19
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Alves KZ, Borges HL, Soletti RC, Viana ALP, Petrella LI, Soldan M, Chagas VL, Schanaider A, Machado JC. Features of in vitro ultrasound biomicroscopic imaging and colonoscopy for detection of colon tumor in mice. ULTRASOUND IN MEDICINE & BIOLOGY 2011; 37:2086-2095. [PMID: 22033129 DOI: 10.1016/j.ultrasmedbio.2011.09.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2011] [Revised: 07/13/2011] [Accepted: 09/06/2011] [Indexed: 05/31/2023]
Abstract
The present work tested the capability of ultrasound biomicroscopy (UBM), at 45 MHz, to provide cross-sectional images with appropriate resolution and contrast to detect tumors and determine their penetration depths on the colon of mice, Mus musculus (Linnaeus 1758), treated with carcinogen for colon tumor induction. B-mode images were obtained, in vitro, from each animal (13 treated and 4 untreated) colon opened longitudinally and immersed in saline solution at room temperature. Prior to UBM inspection, all animals were also examined by colonoscopy. The layers of normal colon identified by UBM are: mucosa (hyperechoic), muscularis mucosae (hypoechoic), submucosa (hyperechoic) and muscularis externa (hypoechoic). UBM images of colon lesions presented structures corresponding to tumors (hyperechoic), lymphoid hyperplasia (hypoechoic) and polypoid tumors (hyperechoic). Additionally, tumoral lesion invasion through the colon was also identified. When compared with histopathologic analysis, all colon lesions detected by UBM were confirmed, while colonoscopic findings had two false negatives.
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Affiliation(s)
- Kelly Z Alves
- Biomedical Engineering Program, COPPE, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
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20
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Colorectal Oncogenesis and Inflammation in a Rat Model Based on Chronic Inflammation due to Cycling DSS Treatments. Gastroenterol Res Pract 2011; 2011:924045. [PMID: 22007198 PMCID: PMC3189610 DOI: 10.1155/2011/924045] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2011] [Accepted: 08/02/2011] [Indexed: 12/17/2022] Open
Abstract
Inflammation is known to be linked with development of colorectal cancer, and the aim was to assess the malignant potential and degree of inflammation in a dextran-sulphate-sodium-(DSS-) induced cyclic colonic tumour model (CTM) in rats and to compare it with the azoxymethane-(AOM-) induced CTM model. Tumours developed in both groups, although, in the DSS group, the colonic mucosa appeared edematous and the number of haemorrhagic erosions and quantity of dysplastic lesions were higher as well as the mucosal concentration of myeloperoxidase and faecal viable count of Enterobacteriaceae. The livers were affected as evaluated by steatosis, parenchymal loss, haemorrhage, and inflammatory infiltrations, and higher proportions of acetate and lower proportions of butyrate in colonic content were found. The DSS model seems to mimic the clinical situation and may be valuable for investigation of inflammation-related dysplasia and colon cancer, as well as for altered liver function by endogenous inflammatory mediators.
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21
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Zheng C, Feng J, Lu D, Wang P, Xing S, Coll JL, Yang D, Yan X. A novel anti-CEACAM5 monoclonal antibody, CC4, suppresses colorectal tumor growth and enhances NK cells-mediated tumor immunity. PLoS One 2011; 6:e21146. [PMID: 21731662 PMCID: PMC3120848 DOI: 10.1371/journal.pone.0021146] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2011] [Accepted: 05/20/2011] [Indexed: 11/23/2022] Open
Abstract
Carcinoembryonic antigen (CEA, CEACAM5, and CD66e) has been found to be associated with various types of cancers, particularly colorectal carcinoma, and developed to be a molecular target for cancer diagnosis and therapy. In present study, we generated a novel anti-CEACAM5 monoclonal antibody, namely mAb CC4, by immunizing mice with living colorectal cancer LS174T cells. Immunohistochemical studies found that mAb CC4 specifically and strongly binds to tumor tissues, especially colorectal adenocarcinoma. In xenografted mice, mAb CC4 is specifically accumulated in tumor site and remarkably represses colorectal tumor growth. In vitro functional analysis showed that mAb CC4 significantly suppresses cell proliferation, migration and aggregation of colorectal cancer cells and also raises strong ADCC reaction. More interestingly, mAb CC4 is able to enhance NK cytotoxicity against MHC-I-deficient colorectal cancer cells by blocking intercellular interaction between epithelial CEACAM5 and NK inhibitory receptor CEACAM1. These data suggest that mAb CC4 has the potential to be developed as a novel tumor-targeting carrier and cancer therapeutic.
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Affiliation(s)
- Chaogu Zheng
- National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Jing Feng
- National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, People's Republic of China
- * E-mail: (XY); (JF)
| | - Di Lu
- National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Ping Wang
- National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Shu Xing
- National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Jean-Luc Coll
- Groupe de Recherche sur le Cancer du Poumon, Equipe INSERM 9924, Institut Albert Bonniot, Grenoble, France
| | - Dongling Yang
- National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Xiyun Yan
- National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, People's Republic of China
- * E-mail: (XY); (JF)
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22
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Lahouar L, Ghrairi F, El Felah M, Salem HB, Miled AH, Hammami M, Achour L. Effect of dietary fiber of "Rihane" barley grains and azoxymethane on serum and liver lipid variables in Wistar rats. J Physiol Biochem 2010; 67:27-34. [PMID: 20852977 DOI: 10.1007/s13105-010-0045-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2010] [Accepted: 09/06/2010] [Indexed: 10/19/2022]
Abstract
The aim of the present study is to evaluate the effects of diet enriched with dietary fiber of barley variety "Rihane" and azoxymethane on serum and liver lipid variables in male rats. Forty male rats were divided into four groups and fed on control diet or experimental diet that contained control enriched with dietary fiber of barley variety "Rihane". Animals were injected with saline (controls) or azoxymethane (20 mg/kg body weight s.c.) at 7 and 8 weeks of age. The experimental diet significantly decreased cholesterol level compared with the control diet. Rats fed with BR diet significantly increased the serum high-density lipoprotein (HDL) cholesterol and significantly decreased low-density lipoprotein (LDL) cholesterol concentrations. The experimental diet decreased the atherogenic index (p < 0.05) compared with the control diet. Whereas the azoxymethane induced a significant increase of liver lipid, serum LDL and triglyceride concentrations, but it caused a significant reduction of HDL. Consequently, the ratio of HDL/TC decreased significantly compared with the control (p < 0.05). Accordingly, these results indicated that the diet enriched with dietary fiber of barley variety "Rihane" could be effective in decreasing the atherogenic risk factors in rats whereas the use of the azoxymethane as colon-specific carcinogen substance altered the lipid metabolism.
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Affiliation(s)
- Lamia Lahouar
- Unité de Recherche 03/UR/09-01 "Génome, Diagnostic Immunitaire et Valorisation", Institut Supérieur de Biotechnologie de Monastir, Rue Tahar Hadded, BP 74, Monastir 5019, Tunisia.
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23
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Chan C, Stanners C. Recent advances in the tumour biology of the GPI-anchored carcinoembryonic antigen family members CEACAM5 and CEACAM6. ACTA ACUST UNITED AC 2010; 14:70-3. [PMID: 17576469 PMCID: PMC1891201 DOI: 10.3747/co.2007.109] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
| | - C.P. Stanners
- Correspondence to: Clifford P. Stanners, McGill University, Department of Biochemistry, 3655 Promenade Sir William Osler, Montreal, Quebec H3G 1Y6. E-mail:
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24
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Chan CHF, Camacho-Leal P, Stanners CP. Colorectal hyperplasia and dysplasia due to human carcinoembryonic antigen (CEA) family member expression in transgenic mice. PLoS One 2007; 2:e1353. [PMID: 18159236 PMCID: PMC2131779 DOI: 10.1371/journal.pone.0001353] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2007] [Accepted: 11/22/2007] [Indexed: 01/30/2023] Open
Abstract
CEA and CEACAM6 are immunoglobulin family intercellular adhesion molecules that are up-regulated without structural mutations in approximately 70% of human cancers. Results in in vitro systems showing tumorigenic effects for these molecules suggest that this correlation could indicate an instrumental role in tumorigenesis. To test whether this applies in vivo, transgenic mice harboring 187 kb of the human genome containing four CEA family member genes including the CEA and CEACAM6 genes were created and their copy numbers increased by mating until colonocyte expression levels reached levels seen in human colorectal carcinomas. The colonocyte surface level of integrin alpha5 and the activation of AKT increased progressively with the expression levels of CEA/CEACAM6. Colonic crypts showed a progressive increase in colonocyte proliferation, an increase in crypt fission, and a strong inhibition of both differentiation and anoikis/apoptosis. All transgenic mice showed massively enlarged colons comprising a continuous mosaic of severe hyperplasia, dysplasia and serrated adenomatous morphology. These results suggest that up-regulated non-mutated adhesion molecules could have a significant instrumental role in human cancer.
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Affiliation(s)
- Carlos H. F. Chan
- McGill Cancer Centre, Department of Biochemistry, McGill University, Montréal, Québec, Canada
- * To whom correspondence should be addressed. E-mail: (CC); (CS)
| | - Pilar Camacho-Leal
- McGill Cancer Centre, Department of Biochemistry, McGill University, Montréal, Québec, Canada
| | - Clifford P. Stanners
- McGill Cancer Centre, Department of Biochemistry, McGill University, Montréal, Québec, Canada
- * To whom correspondence should be addressed. E-mail: (CC); (CS)
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25
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Filpula D. Antibody engineering and modification technologies. ACTA ACUST UNITED AC 2007; 24:201-15. [PMID: 17466589 DOI: 10.1016/j.bioeng.2007.03.004] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2007] [Accepted: 03/20/2007] [Indexed: 10/23/2022]
Abstract
Antibody engineering has become a well-developed discipline, encompassing discovery methods, production strategies, and modification techniques that have brought forth clinically investigated and marketed therapeutics. The realization of the long-standing goal of production of fully human monoclonal antibodies has focused intensive research on the clinical employment of this potent drug category. However, antibodies are large macromolecules that pose numerous challenges in formulation, optimal pharmacokinetics, manufacturing, stability, and process development. While further improvements in discovery technologies, such as phage display, ribosome display, and transgenic animals continue to advance our capacity to rapidly screen and refine optimal binding molecules, antibody engineers have recently focused more of their efforts on improving protein production and stability, as well as engineering improved biological properties in the effector domains of monoclonal antibodies. A second long-standing goal of antibody engineering, the development of targeted drugs, has not been wholly realized, but this obvious application for antibodies is currently undergoing increasing exploration. Minimal binding proteins, such as Fab, scFv, and single variable domains are the preferred targeting elements for some investigational drugs, whereas non-immunoglobulin scaffold proteins have been explored as binding proteins in other designs. The necessity to utilize non-protein components in targeted drugs, such as polymers, linkers, and cytotoxics, has brought a convergence of the fields of bioconjugate chemistry and protein engineering in experimental antibody therapeutics.
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Affiliation(s)
- David Filpula
- Enzon Pharmaceuticals, Piscataway, NJ 08854-3969, USA.
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26
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Naghibalhossaini F, Yoder AD, Tobi M, Stanners CP. Evolution of a tumorigenic property conferred by glycophosphatidyl-inositol membrane anchors of carcinoembryonic antigen gene family members during the primate radiation. Mol Biol Cell 2007; 18:1366-74. [PMID: 17287394 PMCID: PMC1838992 DOI: 10.1091/mbc.e06-10-0884] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
GPI membrane anchors of cell surface glycoproteins have been shown to confer functional properties that are different from their transmembrane (TM)-anchored counterparts. For the human carcinoembryonic antigen (CEA) family, a subfamily of the immunoglobulin superfamily, conversion of the mode of membrane linkage from TM to GPI confers radical changes in function: from tumor suppression or neutrality toward inhibition of differentiation and anoikis and distortion of tissue architecture, thereby contributing to tumorigenesis. We show here that GPI anchorage in the CEA family evolved twice independently in primates, very likely from more primitive TM anchors, by different packages of mutations. Both mutational packages, one package found in many primates, including humans, and a second, novel package found only in the Cebidae radiation of New World monkeys, give rise to efficiently processed GPI-linked proteins. Both types of GPI anchors mediate inhibition of cell differentiation. The estimated rate of nonsynonymous mutations (Ka) in the anchor-determining domain for conversion from TM to GPI anchorage in the CEA family that were fixed during evolution in these primates is 7 times higher than the average Ka in primates, indicating positive selection. These results suggest therefore that the functional changes mediated by CEA GPI anchors, including the inhibition of differentiation and anoikis, could be adaptive and advantageous.
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Affiliation(s)
| | - Anne D. Yoder
- Departments of Cell and Molecular Biology and Zoology, Northwestern University Medical School, Chicago, IL 60611
- Department of Zoology, Field Museum of Natural History, Chicago, IL 60605
| | - Martin Tobi
- Wayne State University, School of Medicine, Detroit VAMC, Detroit, MI 48201; and
| | - Clifford P. Stanners
- *McGill Cancer Centre and Department of Biochemistry, McGill University, Montréal, Québec, Canada H3G 1Y6
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27
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Boateng J, Verghese M, Shackelford L, Walker LT, Khatiwada J, Ogutu S, Williams DS, Jones J, Guyton M, Asiamah D, Henderson F, Grant L, DeBruce M, Johnson A, Washington S, Chawan CB. Selected fruits reduce azoxymethane (AOM)-induced aberrant crypt foci (ACF) in Fisher 344 male rats. Food Chem Toxicol 2006; 45:725-32. [PMID: 17321025 DOI: 10.1016/j.fct.2006.10.019] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2006] [Revised: 10/15/2006] [Accepted: 10/25/2006] [Indexed: 02/07/2023]
Abstract
Phytochemicals contribute to the vibrant colors of fruits and it is suggested that the darker the fruit the higher the antioxidative or anticarcinogenic properties. In this study we investigated the possible effects of blueberries (BLU), blackberries (BLK), plums (PLM), mangoes (MAN), pomegranate juice (POJ), watermelon juice (WMJ) and cranberry juice (CBJ) on azoxymethane (AOM)-induced aberrant crypt foci (ACF) in Fisher 344 male rats. Forty-eight male Fisher 344 rats were randomly assigned to eight groups (n=6). The groups were fed AIN-93G as a control (C) diet, the rats fed fruits received AIN-93G+5% fruits and the groups that were given fruits juices received 20% fruit juice instead of water. The rats received subcutaneous injections of AOM at 16 mg/kg body weight at seventh and eighth weeks of age. At 17th week of age, the rats were killed by CO(2) asphyxiation. Total ACF numbers (mean+/-SEM) in the rats fed CON, BLU, BLK, PLM, MNG, POJ, WMJ and CBJ were 171.67+/-5.6, 11.33+/-2.85, 24.0+/-0.58, 33.67+/-0.89, 28.67+/-1.33, 15.67+/-1.86, 24.33+/-3.92 and 39.0+/-15.31. Total glutathione-S-transferase (GST) activity (mICROmol/mg) in the liver of the rats fed fruits (except BLK) and fruit juices were significantly (p<0.05) higher in the rats fed fruits and fruit juices compared with the control. Our findings suggest that among the fruits and fruit juices, BLU and POJ contributed to significant (P<0.05) reductions in the formation of AOM-induced ACF.
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Affiliation(s)
- J Boateng
- Nutritional Biochemistry and Carcinogenesis Laboratory, Department of Food and Animal Sciences, Alabama A&M University, Normal, AL 35762, United States
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28
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Kuespert K, Pils S, Hauck CR. CEACAMs: their role in physiology and pathophysiology. Curr Opin Cell Biol 2006; 18:565-71. [PMID: 16919437 PMCID: PMC7127089 DOI: 10.1016/j.ceb.2006.08.008] [Citation(s) in RCA: 255] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2006] [Accepted: 08/03/2006] [Indexed: 12/24/2022]
Abstract
Carcinoembryonic antigen-related cell adhesion molecules (CEACAMs) belong to a group of mammalian immunoglobulin-related glycoproteins. They are involved in cell–cell recognition and modulate cellular processes that range from the shaping of tissue architecture and neovascularization to the regulation of insulin homeostasis and T-cell proliferation. CEACAMs have also been identified as receptors for host-specific viruses and bacteria in mice and humans, respectively, making these proteins an interesting example of pathogen–host co-evolution. Forward and reverse genetics in the mouse now provide powerful novel models to elucidate the action of CEACAM family members in vivo.
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