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Porreca A, Ibrahimi E, Maturo F, Marcos Zambrano LJ, Meto M, Lopes MB. Robust prediction of colorectal cancer via gut microbiome 16S rRNA sequencing data. J Med Microbiol 2024; 73. [PMID: 39377779 DOI: 10.1099/jmm.0.001903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/09/2024] Open
Abstract
Introduction. The study addresses the challenge of utilizing human gut microbiome data for the early detection of colorectal cancer (CRC). The research emphasizes the potential of using machine learning techniques to analyze complex microbiome datasets, providing a non-invasive approach to identifying CRC-related microbial markers.Hypothesis/Gap Statement. The primary hypothesis is that a robust machine learning-based analysis of 16S rRNA microbiome data can identify specific microbial features that serve as effective biomarkers for CRC detection, overcoming the limitations of classical statistical models in high-dimensional settings.Aim. The primary objective of this study is to explore and validate the potential of the human microbiome, specifically in the colon, as a valuable source of biomarkers for colorectal cancer (CRC) detection and progression. The focus is on developing a classifier that effectively predicts the presence of CRC and normal samples based on the analysis of three previously published faecal 16S rRNA sequencing datasets.Methodology. To achieve the aim, various machine learning techniques are employed, including random forest (RF), recursive feature elimination (RFE) and a robust correlation-based technique known as the fuzzy forest (FF). The study utilizes these methods to analyse the three datasets, comparing their performance in predicting CRC and normal samples. The emphasis is on identifying the most relevant microbial features (taxa) associated with CRC development via partial dependence plots, i.e. a machine learning tool focused on explainability, visualizing how a feature influences the predicted outcome.Results. The analysis of the three faecal 16S rRNA sequencing datasets reveals the consistent and superior predictive performance of the FF compared to the RF and RFE. Notably, FF proves effective in addressing the correlation problem when assessing the importance of microbial taxa in explaining the development of CRC. The results highlight the potential of the human microbiome as a non-invasive means to detect CRC and underscore the significance of employing FF for improved predictive accuracy.Conclusion. In conclusion, this study underscores the limitations of classical statistical techniques in handling high-dimensional information such as human microbiome data. The research demonstrates the potential of the human microbiome, specifically in the colon, as a valuable source of biomarkers for CRC detection. Applying machine learning techniques, particularly the FF, is a promising approach for building a classifier to predict CRC and normal samples. The findings advocate for integrating FF to overcome the challenges associated with correlation when identifying crucial microbial features linked to CRC development.
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Affiliation(s)
- Annamaria Porreca
- Department of Economics, Statistics and Business, Faculty of Economics and Law, Universitas Mercatorum, Rome, Italy
| | - Eliana Ibrahimi
- Department of Biology, University of Tirana, Tirana, Albania
| | - Fabrizio Maturo
- Department of Economics, Statistics and Business, Faculty of Technological and Innovation Sciences, Universitas Mercatorum, Rome, Italy
| | - Laura Judith Marcos Zambrano
- Computational Biology Group, Precision Nutrition and Cancer Research Program, IMDEA Food Institute, Madrid, Spain
| | - Melisa Meto
- Department of Biology, University of Tirana, Tirana, Albania
| | - Marta B Lopes
- Center for Mathematics and Applications (NOVA Math), NOVA School of Science and Technology, Caparica, Portugal
- UNIDEMI, Research and Development Unit for Mechanical and Industrial Engineering, NOVA School of Science and Technology, Caparica, Portugal
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Chen B, He J, Tian K, Qu J, Hong L, Lin Q, Yang K, Ma L, Xu X. Research Progress on Detection of Pathogens in Medical Wastewater by Electrochemical Biosensors. Molecules 2024; 29:3534. [PMID: 39124939 PMCID: PMC11314202 DOI: 10.3390/molecules29153534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2024] [Revised: 07/19/2024] [Accepted: 07/25/2024] [Indexed: 08/12/2024] Open
Abstract
The detection of pathogens in medical wastewater is crucial due to the high content of pathogenic microorganisms that pose significant risks to public health and the environment. Medical wastewater, which includes waste from infectious disease and tuberculosis facilities, as well as comprehensive medical institutions, contains a variety of pathogens such as bacteria, viruses, fungi, and parasites. Traditional detection methods like nucleic acid detection and immunological assays, while effective, are often time-consuming, expensive, and not suitable for rapid detection in underdeveloped areas. Electrochemical biosensors offer a promising alternative with advantages including simplicity, rapid response, portability, and low cost. This paper reviews the sources of pathogens in medical wastewater, highlighting specific bacteria (e.g., E. coli, Salmonella, Staphylococcus aureus), viruses (e.g., enterovirus, respiratory viruses, hepatitis virus), parasites, and fungi. It also discusses various electrochemical biosensing techniques such as voltammetry, conductometry, impedance, photoelectrochemical, and electrochemiluminescent biosensors. These technologies facilitate the rapid, sensitive, and specific detection of pathogens, thereby supporting public health and environmental safety. Future research may should pay more attention on enhancing sensor sensitivity and specificity, developing portable and cost-effective devices, and innovating detection methods for diverse pathogens to improve public health protection and environmental monitoring.
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Affiliation(s)
- Bangyao Chen
- Key Laboratory of Artificial Organs and Computational Medicine in Zhejiang Province, Shulan International Medical College, Zhejiang Shuren University, Hangzhou 310015, China; (B.C.); (J.H.); (K.T.); (J.Q.); (L.H.); (Q.L.)
| | - Jiahuan He
- Key Laboratory of Artificial Organs and Computational Medicine in Zhejiang Province, Shulan International Medical College, Zhejiang Shuren University, Hangzhou 310015, China; (B.C.); (J.H.); (K.T.); (J.Q.); (L.H.); (Q.L.)
| | - Kewei Tian
- Key Laboratory of Artificial Organs and Computational Medicine in Zhejiang Province, Shulan International Medical College, Zhejiang Shuren University, Hangzhou 310015, China; (B.C.); (J.H.); (K.T.); (J.Q.); (L.H.); (Q.L.)
| | - Jie Qu
- Key Laboratory of Artificial Organs and Computational Medicine in Zhejiang Province, Shulan International Medical College, Zhejiang Shuren University, Hangzhou 310015, China; (B.C.); (J.H.); (K.T.); (J.Q.); (L.H.); (Q.L.)
| | - Lihui Hong
- Key Laboratory of Artificial Organs and Computational Medicine in Zhejiang Province, Shulan International Medical College, Zhejiang Shuren University, Hangzhou 310015, China; (B.C.); (J.H.); (K.T.); (J.Q.); (L.H.); (Q.L.)
| | - Qin Lin
- Key Laboratory of Artificial Organs and Computational Medicine in Zhejiang Province, Shulan International Medical College, Zhejiang Shuren University, Hangzhou 310015, China; (B.C.); (J.H.); (K.T.); (J.Q.); (L.H.); (Q.L.)
| | - Keda Yang
- Key Laboratory of Artificial Organs and Computational Medicine in Zhejiang Province, Shulan International Medical College, Zhejiang Shuren University, Hangzhou 310015, China; (B.C.); (J.H.); (K.T.); (J.Q.); (L.H.); (Q.L.)
| | - Lei Ma
- Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology, Beijing College of New Materials and Chemical Engineering, Institute of Petrochemical Technology, Beijing 102617, China
| | - Xiaoling Xu
- Key Laboratory of Artificial Organs and Computational Medicine in Zhejiang Province, Shulan International Medical College, Zhejiang Shuren University, Hangzhou 310015, China; (B.C.); (J.H.); (K.T.); (J.Q.); (L.H.); (Q.L.)
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3
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Ma RT, Wang Y, Ji F, Chen JN, Wang TJ, Liu Y, Hou MX, Guo ZG. YTHDF1's grip on CRC vasculature: insights into LINC01106 and miR-449b-5p-VEGFA axis. Cancer Cell Int 2024; 24:195. [PMID: 38835070 DOI: 10.1186/s12935-024-03360-y] [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: 12/04/2023] [Accepted: 05/07/2024] [Indexed: 06/06/2024] Open
Abstract
BACKGROUND Investigating the unexplored territory of lncRNA m6A modification in colorectal cancer (CRC) vasculature, this study focuses on LINC01106 and YTHDF1. METHODS Clinical assessments reveal upregulated LINC01106 promoting vascular generation via the miR-449b-5p-VEGFA pathway. RESULTS YTHDF1, elevated in CRC tissues, emerges as an adverse prognostic factor. Functional experiments showcase YTHDF1's inhibitory effects on CRC cell dynamics. Mechanistically, Me-CLIP identifies m6A-modified LINC01106, validated as a YTHDF1 target through Me-RIP. CONCLUSIONS This study sheds light on the YTHDF1-mediated m6A modification of LINC01106, presenting it as a key player in suppressing CRC vascular generation.
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Affiliation(s)
- Rui-Ting Ma
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, Jiangsu, 210023, China
- The Affiliated Hospital of Inner Mongolia Medical University, No.1, North Channel Road, Huimin District, Hohhot, 010050, China
| | - Yuanyuan Wang
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, Jiangsu, 210023, China
| | - Feng Ji
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, Jiangsu, 210023, China
| | - Jian-Nan Chen
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, Jiangsu, 210023, China
| | - Tian-Jun Wang
- Nanjing Medical University, Nanjing, Jiangsu, 210097, China
| | - Yan Liu
- The Affiliated Hospital of Inner Mongolia Medical University, No.1, North Channel Road, Huimin District, Hohhot, 010050, China
| | - Ming-Xing Hou
- The Affiliated Hospital of Inner Mongolia Medical University, No.1, North Channel Road, Huimin District, Hohhot, 010050, China.
| | - Zhi-Gang Guo
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, Jiangsu, 210023, China.
- The Academy of Life Sciences, Nanjing Normal University, Nanjing, 210097, China.
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4
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Masheghati F, Asgharzadeh MR, Jafari A, Masoudi N, Maleki-Kakelar H. The role of gut microbiota and probiotics in preventing, treating, and boosting the immune system in colorectal cancer. Life Sci 2024; 344:122529. [PMID: 38490297 DOI: 10.1016/j.lfs.2024.122529] [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: 08/24/2023] [Revised: 12/03/2023] [Accepted: 02/21/2024] [Indexed: 03/17/2024]
Abstract
The gut microbiome plays a significant role in developing colorectal cancer (CRC). The gut microbiome usually acts as a protective barrier against harmful pathogens and infections in the intestine, while also regulating inflammation by affecting the human immune system. The gut microbiota and probiotics play a role not only in intestinal inflammation associated with tumor formation but also in regulating anti-cancer immune response. As a result, they associated with tumor progression and the effectiveness of anti-cancer therapies. Research indicates that gut microbiota and probiotics can be used as biomarkers to predict the impact of immunotherapy and enhance its efficacy in treating CRC by regulating it. This review examines the importance of gut microbiota and probiotics in the development and progression of CRC, as well as their synergistic impact on anti-cancer treatments.
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Affiliation(s)
- Forough Masheghati
- Solid Tumor Research Center, Cellular and Molecular Medicine Research Institute, Urmia University of Medical Sciences, Urmia, Iran
| | | | - Abbas Jafari
- Cellular and Molecular Research Center, Cellular and Molecular Medicine Research Institute, Urmia University of Medical Sciences, Urmia, Iran
| | - Naser Masoudi
- Solid Tumor Research Center, Cellular and Molecular Medicine Research Institute, Urmia University of Medical Sciences, Urmia, Iran; Department of General Surgery, School of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Hadi Maleki-Kakelar
- Solid Tumor Research Center, Cellular and Molecular Medicine Research Institute, Urmia University of Medical Sciences, Urmia, Iran.
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5
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Chen Q, Wang Z, Wu BX. Promoting wound recovery through stable intestinal flora: Reducing post-operative complications in colorectal cancer surgery patients. Int Wound J 2024; 21:e14501. [PMID: 38050345 PMCID: PMC10898368 DOI: 10.1111/iwj.14501] [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: 10/18/2023] [Revised: 11/02/2023] [Accepted: 11/06/2023] [Indexed: 12/06/2023] Open
Abstract
In recent years, the relationship between intestinal flora and post-operative recovery, particularly in colorectal cancer (CRC) surgery patients, it has been hypothesized that intestinal flora stability influences wound healing, reduces complications and improves overall recovery outcomes after surgical interventions. This study examined the relationship between intestinal flora stability and post-operative recovery in patients undergoing CRC surgery. Between May 2020 and 2023, 80 CRC patients from our hospital's Colorectal Surgery Department were enrolled. A random number table was used to divide them into two categories. Both groups were subjected to distinct gastrointestinal preparation protocols. Indicators of clinical therapeutic effect, intestinal flora balance following surgery, post-operative complications and quality of life were evaluated. The observation group, which adhered to a distinct gastrointestinal regimen, demonstrated a statistically significant improvement in post-operative outcomes, with a clinical effectiveness rate of 97.5% compared to the control group's 75%. In addition, the observation group had a lower incidence of intestinal flora imbalance following surgery than the control group. The observation group had lower incidences of intestinal obstruction, infection, anastomotic leakage, incisional tumour implantation and delayed diarrhoea. Using the KPS score and the BMI, post-treatment assessments of the observation group's quality of life revealed significant enhancements in comparison to the control group. Additionally, wound healing rates were superior in the observation group, with a correlation between stable intestinal flora and decreased wound infection rates. The type of post-operative diet influenced the stabilization of the gut flora, with a high-fibre diet producing superior results in both groups. The stability of intestinal flora influences the post-operative rehabilitation of patients undergoing CRC surgery favourably. Appropriate bowel preparation and dietary considerations can reduce post-operative complications, improve wound healing rates and enhance overall quality of life.
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Affiliation(s)
- Qiao Chen
- Colorectal and Anal SurgeryThe Second People's Hospital of China Three Gorges University, The Second People's Hospital of Yi Chang, HubeiYichangChina
| | - Zhi Wang
- Department of Gastrointestinal SurgeryThe Central Hospital of Enshi Tujia and Miao Autonomous PrefectureEnshiChina
| | - Bai Xiang Wu
- Colorectal and Anal SurgeryThe Second People's Hospital of China Three Gorges University, The Second People's Hospital of Yi Chang, HubeiYichangChina
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6
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Yarahmadi A, Afkhami H. The role of microbiomes in gastrointestinal cancers: new insights. Front Oncol 2024; 13:1344328. [PMID: 38361500 PMCID: PMC10867565 DOI: 10.3389/fonc.2023.1344328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 12/20/2023] [Indexed: 02/17/2024] Open
Abstract
Gastrointestinal (GI) cancers constitute more than 33% of new cancer cases worldwide and pose a considerable burden on public health. There exists a growing body of evidence that has systematically recorded an upward trajectory in GI malignancies within the last 5 to 10 years, thus presenting a formidable menace to the health of the human population. The perturbations in GI microbiota may have a noteworthy influence on the advancement of GI cancers; however, the precise mechanisms behind this association are still not comprehensively understood. Some bacteria have been observed to support cancer development, while others seem to provide a safeguard against it. Recent studies have indicated that alterations in the composition and abundance of microbiomes could be associated with the progression of various GI cancers, such as colorectal, gastric, hepatic, and esophageal cancers. Within this comprehensive analysis, we examine the significance of microbiomes, particularly those located in the intestines, in GI cancers. Furthermore, we explore the impact of microbiomes on various treatment modalities for GI cancer, including chemotherapy, immunotherapy, and radiotherapy. Additionally, we delve into the intricate mechanisms through which intestinal microbes influence the efficacy of GI cancer treatments.
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Affiliation(s)
- Aref Yarahmadi
- Department of Biology, Khorramabad Branch, Islamic Azad University, Khorramabad, Iran
| | - Hamed Afkhami
- Nervous System Stem Cells Research Center, Semnan University of Medical Sciences, Semnan, Iran
- Cellular and Molecular Research Center, Qom University of Medical Sciences, Qom, Iran
- Department of Medical Microbiology, Faculty of Medicine, Shahed University, Tehran, Iran
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7
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Zaher K, Basingab F. Interaction between Gut Microbiota and Dendritic Cells in Colorectal Cancer. Biomedicines 2023; 11:3196. [PMID: 38137417 PMCID: PMC10741039 DOI: 10.3390/biomedicines11123196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 11/07/2023] [Accepted: 11/14/2023] [Indexed: 12/24/2023] Open
Abstract
Colorectal cancer (CRC) is a malignancy that manifests in serial stages and has been observed to have an escalating incidence in modern societies, causing a significant global health problem. The development of CRC is influenced by various exogenous factors, including lifestyle, diet, nutrition, environment, and microbiota, that can affect host cells, including immune cells. Various immune dysfunctions have been recognized in patients with CRC at different stages of this disease. The signature of microbiota in the development of CRC-inflammation related to obesity, diet, and reactive host cells, such as dendritic cells (DCs)-has been highlighted by many studies. This study focuses on DCs, the primary cellular mediators linking innate and adaptive immune responses against cancer. In addition, this review focuses on the role of microbiota in dysbiosis and how it affects DCs and, in turn, the immune response and progression of CRC by stimulating different sets of T cells. Additionally, DCs' role in protecting this delicate balance is examined. This is to determine how gene yields of commensal microbiota may be critical in restoring this balance when disrupted. The stages of the disease and major checkpoints are discussed, as well as the role of the C-type lectin receptor of immature DCs pattern recognition receptor in CRC. Finally, based on a thorough examination of worldwide clinical studies and recent advancements in cancer immunotherapy, it is recommended that innovative approaches that integrate DC vaccination strategies with checkpoint inhibitors be considered. This approach holds great promise for improving CRC management.
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Affiliation(s)
- Kawther Zaher
- Immunology Unit, King Fahad Medical Research Centre, King Abdulaziz University, Jeddah 21859, Saudi Arabia
- Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah 21859, Saudi Arabia
| | - Fatemah Basingab
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah 21585, Saudi Arabia
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Mazumder K, Aktar A, Ramasamy S, Biswas B, Kerr PG, Blanchard C. Attenuating Colorectal Cancer Using Nine Cultivars of Australian Lupin Seeds: Apoptosis Induction Triggered by Mitochondrial Reactive Oxygen Species Generation and Caspases-3/7 Activation. Cells 2023; 12:2557. [PMID: 37947635 PMCID: PMC10647522 DOI: 10.3390/cells12212557] [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: 09/23/2023] [Revised: 10/21/2023] [Accepted: 10/27/2023] [Indexed: 11/12/2023] Open
Abstract
As Australian lupin cultivars are rich sources of polyphenols, dietary fibers, high-quality proteins, and abundant bioactive compounds with significant antioxidant, antidiabetic, and anticancer activities, this research work is aimed at investigating the colon cancer alleviation activity of nine cultivars of lupin seeds on HCT116 and HT29 colon carcinoma cell lines through anti-proliferation assay, measurement of apoptosis, and identification of the mechanism of apoptosis. Nine cultivars were pre-screened for anti-proliferation of HCT116 and HT29 cells along with consideration of the impact of heat processing on cancer cell viability. Mandelup and Jurien showed significant inhibition of HCT116 cells, whereas the highest inhibition of HT29 cell proliferation was attained by Jurien and Mandelup. Processing decreased the anti-proliferation activity drastically. Lupin cultivars Mandelup, Barlock, and Jurien (dose: 300 μg/mL) induced early and late apoptosis of colon cancer cells in Annexin V-FITC assay. The mechanism of apoptosis was explored, which involves boosting of caspases-3/7 activation and intracellular reactive oxygen species (ROS) generation in HCT116 cells (Mandelup and Barlock) and HT29 cells (Jurien and Mandelup). Thus, the findings showed that lupin cultivars arrest cell cycles by inducing apoptosis of colorectal carcinoma cells triggered by elevated ROS generation and caspases-3/7 activation.
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Affiliation(s)
- Kishor Mazumder
- Department of Pharmacy, Jashore University of Science and Technology, Jashore 7408, Bangladesh
- School of Optometry and Vision Science, UNSW Medicine, University of New South Wales (UNSW), Sydney, NSW 2052, Australia
| | - Asma Aktar
- Department of Pharmacy, Dhaka International University, Dhaka 1212, Bangladesh
| | - Sujatha Ramasamy
- Institute of Biological Sciences, Faculty of Science, Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Biswajit Biswas
- Department of Pharmacy, Jashore University of Science and Technology, Jashore 7408, Bangladesh
- Institute for Molecular Bioscience, Queensland University, Brisbane, QLD 4072, Australia
| | - Philip G. Kerr
- School of Biomedical Sciences and Graham Centre for Agricultural Innovation, Charles Sturt University, Boorooma St., Wagga Wagga, NSW 2650, Australia
| | - Christopher Blanchard
- School of Biomedical Sciences and Graham Centre for Agricultural Innovation, Charles Sturt University, Boorooma St., Wagga Wagga, NSW 2650, Australia
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9
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Deng X, Yang J, Zhang Y, Chen X, Wang C, Suo H, Song J. An Update on the Pivotal Roles of Probiotics, Their Components, and Metabolites in Preventing Colon Cancer. Foods 2023; 12:3706. [PMID: 37835359 PMCID: PMC10572180 DOI: 10.3390/foods12193706] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 10/01/2023] [Accepted: 10/08/2023] [Indexed: 10/15/2023] Open
Abstract
Diet, lifestyle, and gut microbiota composition are key risk factors for the progression of colon cancer. Probiotics are living microorganisms that can offer health benefits to the parasitifer when ingested in competent quantities. Several in vivo, in vitro, and clinical studies have demonstrated that probiotics can prevent and mitigate the development of colon cancer. The anti-colon cancer mechanisms of probiotics include the suppression of cell proliferation and the promotion of cancer cell apoptosis, immunomodulation, the modulation of intestinal microorganisms and their metabolism, strengthening the intestinal barrier, and antioxidant effects. This article describes the pathogenesis of colon cancer and the available therapeutic options. In addition, this paper reviews the mechanisms by which probiotics mitigate colon cancer as well as the mitigating effects of probiotic components and metabolites on colon cancer.
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Affiliation(s)
- Xue Deng
- College of Food Science, Southwest University, Chongqing 400715, China; (X.D.); (Y.Z.); (X.C.); (C.W.); (H.S.)
| | - Jing Yang
- Chongqing Engineering Research Center for Processing & Storage of Distinct Agricultural Products, Chongqing Technology and Business University, Chongqing 400067, China;
| | - Yu Zhang
- College of Food Science, Southwest University, Chongqing 400715, China; (X.D.); (Y.Z.); (X.C.); (C.W.); (H.S.)
| | - Xiaoyong Chen
- College of Food Science, Southwest University, Chongqing 400715, China; (X.D.); (Y.Z.); (X.C.); (C.W.); (H.S.)
| | - Chen Wang
- College of Food Science, Southwest University, Chongqing 400715, China; (X.D.); (Y.Z.); (X.C.); (C.W.); (H.S.)
| | - Huayi Suo
- College of Food Science, Southwest University, Chongqing 400715, China; (X.D.); (Y.Z.); (X.C.); (C.W.); (H.S.)
- National Citrus Engineering Research Center, Southwest University, Chongqing 400712, China
| | - Jiajia Song
- College of Food Science, Southwest University, Chongqing 400715, China; (X.D.); (Y.Z.); (X.C.); (C.W.); (H.S.)
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Zhou R, Ng SK, Sung JJY, Goh WWB, Wong SH. Data pre-processing for analyzing microbiome data - A mini review. Comput Struct Biotechnol J 2023; 21:4804-4815. [PMID: 37841330 PMCID: PMC10569954 DOI: 10.1016/j.csbj.2023.10.001] [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: 07/14/2023] [Revised: 10/01/2023] [Accepted: 10/01/2023] [Indexed: 10/17/2023] Open
Abstract
The human microbiome is an emerging research frontier due to its profound impacts on health. High-throughput microbiome sequencing enables studying microbial communities but suffers from analytical challenges. In particular, the lack of dedicated preprocessing methods to improve data quality impedes effective minimization of biases prior to downstream analysis. This review aims to address this gap by providing a comprehensive overview of preprocessing techniques relevant to microbiome research. We outline a typical workflow for microbiome data analysis. Preprocessing methods discussed include quality filtering, batch effect correction, imputation of missing values, normalization, and data transformation. We highlight strengths and limitations of each technique to serve as a practical guide for researchers and identify areas needing further methodological development. Establishing robust, standardized preprocessing will be essential for drawing valid biological conclusions from microbiome studies.
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Affiliation(s)
- Ruwen Zhou
- Lee Kong Chian School of Medicine, Nanyang Technological University, 11 Mandalay Road, 308232, Singapore
| | - Siu Kin Ng
- Lee Kong Chian School of Medicine, Nanyang Technological University, 11 Mandalay Road, 308232, Singapore
| | - Joseph Jao Yiu Sung
- Lee Kong Chian School of Medicine, Nanyang Technological University, 11 Mandalay Road, 308232, Singapore
- Department of Gastroenterology and Hepatology, Tan Tock Seng Hospital, National Healthcare Group, 11 Jalan Tan Tock Seng, 308433, Singapore
| | - Wilson Wen Bin Goh
- Lee Kong Chian School of Medicine, Nanyang Technological University, 11 Mandalay Road, 308232, Singapore
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, 637551, Singapore
- Center for Biomedical Informatics, Nanyang Technological University, 59 Nanyang Drive, 636921, Singapore
| | - Sunny Hei Wong
- Lee Kong Chian School of Medicine, Nanyang Technological University, 11 Mandalay Road, 308232, Singapore
- Department of Gastroenterology and Hepatology, Tan Tock Seng Hospital, National Healthcare Group, 11 Jalan Tan Tock Seng, 308433, Singapore
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11
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Dong Y, Chen J, Sun H, Chen Y, Jiao Y, Gu W, Chen H, Liu S. Traditional Chinese medicine as a novel therapy for colorectal cancer by modulating intestinal flora. J Cancer 2023; 14:2720-2725. [PMID: 37779871 PMCID: PMC10539393 DOI: 10.7150/jca.87719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 08/24/2023] [Indexed: 10/03/2023] Open
Abstract
Colorectal cancer is a common clinical malignant tumor of the digestive tract, and intestinal flora has played an important role in the development of colorectal cancer. Bifidobacteria, as one of the main dominant florae in intestinal tract, can inhibit the occurrence and development of colorectal cancer through various mechanisms. Recent studies have shown that traditional Chinese medicine can regulate the abundance of bifidobacteria in intestinal tract and exhibit anti-tumor effects on colorectal cancer. Detailed investigations have revealed that the mechanisms of bifidobacteria in the treatment of colorectal cancer involve three aspects: the production of short-chain fatty acids, the regulation of the body's immunity, and the regulation of cell apoptosis and differentiation. In this review, we provide an updated summary of recent advances in our understanding of the mechanisms by which traditional Chinese medicine regulate intestinal flora to inhibit colorectal cancer development and metastasis.
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Affiliation(s)
- Yushan Dong
- Graduate School of Heilongjiang University of Chinese Medicine, No. 24, Heping Road, Xiangfang District, Harbin, Heilongjiang, China, 150040
| | - Jingyu Chen
- Department of Chinese Medicine Internal Medicine, Xiyuan Hospital, China Academy of Chinese Medical Sciences, No. 1, Xiyuan Playground, Haidian District, Beijing, 100091
| | - Heng Sun
- Department of Chinese Medicine, The First Affiliated Hospital of Heilongjiang University of Chinese Medicine No.26, Heping Road, Xiangfang District, Harbin, Heilongjiang Province, China, 150040
| | - Yuhan Chen
- Department of Chinese Medicine, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China, 100091
| | - Yan Jiao
- Department of Orthopedic Surgery and BME, College of Medicine, University of Tennessee Health Science Center, Memphis, TN, 38163, USA
| | - Weikuan Gu
- Department of Chinese Medicine, Heilongjiang Academy of Chinese Medicine Sciences, No. 72 Xiangan Street, Xiangfang District, Harbin, China, 150036
| | - Hong Chen
- Department of Chinese Medicine, Heilongjiang Academy of Chinese Medicine Sciences, No. 72 Xiangan Street, Xiangfang District, Harbin, China, 150036
| | - Songjiang Liu
- Department of Chinese Medicine, The First Affiliated Hospital of Heilongjiang University of Chinese Medicine No.26, Heping Road, Xiangfang District, Harbin, Heilongjiang Province, China, 150040
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12
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Thoda C, Touraki M. Probiotic-Derived Bioactive Compounds in Colorectal Cancer Treatment. Microorganisms 2023; 11:1898. [PMID: 37630458 PMCID: PMC10456921 DOI: 10.3390/microorganisms11081898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 07/14/2023] [Accepted: 07/24/2023] [Indexed: 08/27/2023] Open
Abstract
Colorectal cancer (CRC) is a multifactorial disease with increased morbidity and mortality rates globally. Despite advanced chemotherapeutic approaches for the treatment of CRC, low survival rates due to the regular occurrence of drug resistance and deleterious side effects render the need for alternative anticancer agents imperative. Accumulating evidence supports that gut microbiota imbalance precedes the establishment of carcinogenesis, subsequently contributing to cancer progression and response to anticancer therapy. Manipulation of the gut microbiota composition via the administration of probiotic-derived bioactive compounds has gradually attained the interest of scientific communities as a novel therapeutic strategy for CRC. These compounds encompass miscellaneous metabolic secreted products of probiotics, including bacteriocins, short-chain fatty acids (SCFAs), lactate, exopolysaccharides (EPSs), biosurfactants, and bacterial peptides, with profound anti-inflammatory and antiproliferative properties. This review provides a classification of postbiotic types and a comprehensive summary of the current state of research on their biological role against CRC. It also describes how their intricate interaction with the gut microbiota regulates the proper function of the intestinal barrier, thus eliminating gut dysbiosis and CRC development. Finally, it discusses the future perspectives in precision-medicine approaches as well as the challenges of their synthesis and optimization of administration in clinical studies.
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Affiliation(s)
| | - Maria Touraki
- Laboratory of General Biology, Department of Genetics, Development and Molecular Biology, School of Biology, Faculty of Sciences, Aristotle University of Thessaloniki, 54 124 Thessaloniki, Greece;
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13
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Qu Y, Yang H, Li S, Li L, Li Y, Wang D. The involvement of Th1 cell differentiation in the anti-tumor effect of purified polysaccharide from Sanghuangporus vaninii in colorectal cancer via multi-omics analysis. Int J Biol Macromol 2023; 237:123927. [PMID: 36889619 DOI: 10.1016/j.ijbiomac.2023.123927] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 02/26/2023] [Accepted: 03/01/2023] [Indexed: 03/08/2023]
Abstract
Sanghuangporus vaninii is a medicinal mushroom, which has been used as a treatment for various diseases; however, the therapeutic potential and mechanism of action of S. vaninii in colorectal cancer (CRC) remain unknown. Herein, human colon adenocarcinoma cells were used to analyze the anti-CRC effects of the purified polysaccharide of S. vaninii (SVP-A-1) in vitro. In SVP-A-1-treated B6/JGpt-Apcem1Cin (Min)/Gpt male (ApcMin/+) mice, 16S rRNA sequencing was performed on cecal feces, metabolites were examined in serum, and LC-MS/MS protein detection was performed in colorectal tumors. Protein changes were further confirmed by various biochemical detection methods. Water-soluble SVP-A-1 with a molecular weight of 22.5 kDa was first obtained. SVP-A-1 prevented gut microbiota dysbiosis related to metabolic pathways of L-arginine biosynthesis, increased L-citrulline levels in the serum of ApcMin/+ mice, mediated L-arginine synthesis, and improved antigen presentation in dendritic cells and activated CD4+ T cells; the resulting Th1 cells released IFN-γ and TNF-α to act on tumor cells and promoted the sensitivity of tumor cells to cytotoxic T lymphocytes. In summary, SVP-A-1 exerted anti-CRC effects and has excellent potential for CRC treatment.
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Affiliation(s)
- Yidi Qu
- School of Life Sciences, Jilin University, Changchun 130012, China.
| | - Hongxin Yang
- School of Life Sciences, Jilin University, Changchun 130012, China.
| | - Siyu Li
- School of Life Sciences, Jilin University, Changchun 130012, China.
| | - Lanzhou Li
- Engineering Research Center of Chinese Ministry of Education for Edible and Medicinal Fungi, Jilin Agricultural University, Changchun 130118, China.
| | - Yu Li
- Engineering Research Center of Chinese Ministry of Education for Edible and Medicinal Fungi, Jilin Agricultural University, Changchun 130118, China.
| | - Di Wang
- School of Life Sciences, Jilin University, Changchun 130012, China; Engineering Research Center of Chinese Ministry of Education for Edible and Medicinal Fungi, Jilin Agricultural University, Changchun 130118, China.
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14
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Li T, Han L, Ma S, Lin W, Ba X, Yan J, Huang Y, Tu S, Qin K. Interaction of gut microbiota with the tumor microenvironment: A new strategy for antitumor treatment and traditional Chinese medicine in colorectal cancer. Front Mol Biosci 2023; 10:1140325. [PMID: 36950522 PMCID: PMC10025541 DOI: 10.3389/fmolb.2023.1140325] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Accepted: 02/23/2023] [Indexed: 03/08/2023] Open
Abstract
Colorectal cancer (CRC) is one of the most common malignancies worldwide and the second leading cause of cancer-related death. In recent years, the relationship between gut microbiota and CRC has attracted increasing attention from researchers. Studies reported that changes in the composition of gut microbiota, such as increase in the number of Fusobacterium nucleatum and Helicobacter hepaticus, impair the immune surveillance by affecting the intestinal mucosal immunity and increase the risk of tumor initiation and progression. The tumor microenvironment is the soil for tumor survival. Close contacts between gut microbiota and the tumor microenvironment may directly affect the progression of tumors and efficacy of antitumor drugs, thus influencing the prognosis of patients with CRC. Recently, many studies have shown that traditional Chinese medicine can safely and effectively improve the efficacy of antitumor drugs, potentially through remodeling of the tumor microenvironment by regulated gut microbiota. This article describes the effect of gut microbiota on the tumor microenvironment and possible mechanisms concerning the initiation and progression of CRC, and summarizes the potential role of traditional Chinese medicine.
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Affiliation(s)
- Tingting Li
- Department of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Liang Han
- Department of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Simin Ma
- Department of Nosocomial Infection Management, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Weiji Lin
- Department of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xin Ba
- Department of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jiahui Yan
- Department of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ying Huang
- Department of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shenghao Tu
- Department of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Kai Qin
- Department of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- *Correspondence: Kai Qin,
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15
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Bao L, Cui X, Bai R, Chen C. Advancing intestinal organoid technology to decipher nano-intestine interactions and treat intestinal disease. NANO RESEARCH 2022; 16:3976-3990. [PMID: 36465523 PMCID: PMC9685037 DOI: 10.1007/s12274-022-5150-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Revised: 09/17/2022] [Accepted: 10/06/2022] [Indexed: 06/17/2023]
Abstract
With research burgeoning in nanoscience and nanotechnology, there is an urgent need to develop new biological models that can simulate native structure, function, and genetic properties of tissues to evaluate the adverse or beneficial effects of nanomaterials on a host. Among the current biological models, three-dimensional (3D) organoids have developed as powerful tools in the study of nanomaterial-biology (nano-bio) interactions, since these models can overcome many of the limitations of cell and animal models. A deep understanding of organoid techniques will facilitate the development of more efficient nanomedicines and further the fields of tissue engineering and personalized medicine. Herein, we summarize the recent progress in intestinal organoids culture systems with a focus on our understanding of the nature and influencing factors of intestinal organoid growth. We also discuss biomimetic extracellular matrices (ECMs) coupled with nanotechnology. In particular, we analyze the application prospects for intestinal organoids in investigating nano-intestine interactions. By integrating nanotechnology and organoid technology, this recently developed model will fill the gaps left due to the deficiencies of traditional cell and animal models, thus accelerating both our understanding of intestine-related nanotoxicity and the development of nanomedicines.
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Affiliation(s)
- Lin Bao
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety & CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Chinese Academy of Sciences, Beijing, 100190 China
- University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Xuejing Cui
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety & CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Chinese Academy of Sciences, Beijing, 100190 China
- The GBA National Institute for Nanotechnology Innovation, Guangzhou, 510700 China
| | - Ru Bai
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety & CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Chinese Academy of Sciences, Beijing, 100190 China
| | - Chunying Chen
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety & CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Chinese Academy of Sciences, Beijing, 100190 China
- The GBA National Institute for Nanotechnology Innovation, Guangzhou, 510700 China
- University of Chinese Academy of Sciences, Beijing, 100049 China
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16
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Ren L, Zhang Z, Zhao W, Zhao B, Chen X, Wang Y, Chen Z, Ye J, Yang Y, Cao P. Qingchang Wenzhong Decoction Prevents the Occurrence of Intestinal Tumors by Regulating Intestinal Microbiota and Gasdermin E. Front Physiol 2022; 13:917323. [PMID: 35910578 PMCID: PMC9329543 DOI: 10.3389/fphys.2022.917323] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 06/22/2022] [Indexed: 11/13/2022] Open
Abstract
Background: Intestinal tumors are the third most common malignant tumors worldwide, accounting for approximately 10% of all new cancer cases worldwide. Cancer prevention is a promising way to limit the intestinal tumor incidence rate; however, challenges remain. Qingchang Wenzhong decoction (QCWZD) can clinically treat mild to moderate ulcerative colitis symptoms. Moreover, the mechanism by which it prevents intestinal tumors has not been clarified. In this study, we explored the mechanism by which QCWZD prevents the occurrence of intestinal tumors.Methods: To study the preventive mechanism of QCWZD on intestinal tumors, we used two model mice with azoxymethane/dextran sodium sulfate (AOM/DSS)- and Apcmin/+-induced intestinal tumor formation. The two models exhibited colitis-associated cancer and familial adenomatous polyposis, respectively. Colon and small intestine tissues were collected and analyzed based on histopathology and immunohistochemistry analyses. Fecal samples were collected, and 16S rRNA sequencing was used to analyze the correlation between intestinal microbiota and the prevention of intestinal tumors.Results: In the AOM/DSS mice, the QCWZD reduced the number and size of tumors, as well as tumor load. Similarly, in the Apcmin/+ mice, QCWZD can also reduce the number of tumors and the tumor load. The results of 16S rRNA sequencing confirmed that QCWZD altered the composition of intestinal microbiota in mice, a phenomenon that may prevent the occurrence of intestinal tumors by aiding the increase in the abundance of beneficial bacteria, such as Ralstonia and Butyricicoccus, and reducing that of pathogenic bacteria, such as Desulfobacterota and Bacteroides, in the intestine. Further, immunohistochemistry reveald that QCWZD can improve the expression of intestinal barrier-related proteins and inhibit pyroptosis-related proteins.Conclusions: QCWZD has the potential to prevent the occurrence of intestinal tumors. The anti-tumor activity may be achieved by regulating the intestinal microbiota, improving the function of the intestinal barrier, and inhibiting GSDME mediated pyroptosis.
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Affiliation(s)
- Lingli Ren
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, China
- Department of Pharmacology, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
| | - Zhengwei Zhang
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, China
- Department of Pharmacology, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
| | - Wenjing Zhao
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, China
- Department of Pharmacology, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
| | - Bing Zhao
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, China
- Department of Pharmacology, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
| | - Xi Chen
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, China
- Department of Pharmacology, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
| | | | - Zhong Chen
- Yangtze River Pharmaceutical Group, Taizhou, China
| | - Juan Ye
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, China
- Department of Pharmacology, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
- *Correspondence: Juan Ye, ; Yang Yang, ; Peng Cao,
| | - Yang Yang
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, China
- Department of Pharmacology, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
- Yangtze River Pharmaceutical Group, Taizhou, China
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, China
- *Correspondence: Juan Ye, ; Yang Yang, ; Peng Cao,
| | - Peng Cao
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, China
- Department of Pharmacology, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
- *Correspondence: Juan Ye, ; Yang Yang, ; Peng Cao,
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17
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Woodall CA, McGeoch LJ, Hay AD, Hammond A. Respiratory tract infections and gut microbiome modifications: A systematic review. PLoS One 2022; 17:e0262057. [PMID: 35025938 PMCID: PMC8757905 DOI: 10.1371/journal.pone.0262057] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Accepted: 12/15/2021] [Indexed: 12/15/2022] Open
Abstract
Respiratory tract infections (RTIs) are extremely common and can cause gastrointestinal tract symptoms and changes to the gut microbiota, yet these effects are poorly understood. We conducted a systematic review to evaluate the reported evidence of gut microbiome alterations in patients with a RTI compared to healthy controls (PROSPERO: CRD42019138853). We systematically searched Medline, Embase, Web of Science, Cochrane and the Clinical Trial Database for studies published between January 2015 and June 2021. Studies were eligible for inclusion if they were human cohorts describing the gut microbiome in patients with an RTI compared to healthy controls and the infection was caused by a viral or bacterial pathogen. Dual data screening and extraction with narrative synthesis was performed. We identified 1,593 articles and assessed 11 full texts for inclusion. Included studies (some nested) reported gut microbiome changes in the context of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) (n = 5), influenza (H1N1 and H7N9) (n = 2), Tuberculosis (TB) (n = 4), Community-Acquired Pneumonia CAP (n = 2) and recurrent RTIs (rRTI) (n = 1) infections. We found studies of patients with an RTI compared to controls reported a decrease in gut microbiome diversity (Shannon) of 1.45 units (95% CI, 0.15-2.50 [p, <0.0001]) and a lower abundance of taxa (p, 0.0086). Meta-analysis of the Shannon value showed considerable heterogeneity between studies (I2, 94.42). Unbiased analysis displayed as a funnel plot revealed a depletion of Lachnospiraceae, Ruminococcaceae and Ruminococcus and enrichment of Enterococcus. There was an important absence in the lack of cohort studies reporting gut microbiome changes and high heterogeneity between studies may be explained by variations in microbiome methods and confounder effects. Further human cohort studies are needed to understand RTI-induced gut microbiome changes to better understand interplay between microbes and respiratory health.
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Affiliation(s)
- Claire A. Woodall
- Centre for Academic Primary Care, Bristol Medical School, Population Health Sciences, University of Bristol, Bristol, United Kingdom
| | - Luke J. McGeoch
- Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom
| | - Alastair D. Hay
- Centre for Academic Primary Care, Bristol Medical School, Population Health Sciences, University of Bristol, Bristol, United Kingdom
| | - Ashley Hammond
- Centre for Academic Primary Care, Bristol Medical School, Population Health Sciences, University of Bristol, Bristol, United Kingdom
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18
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Zou Y, Yu H, Zhang L, Ruan Z. Dietary Vegetable Powders Modulate Immune Homeostasis and Intestinal Microbiota in Mice. Foods 2021; 11:foods11010027. [PMID: 35010153 PMCID: PMC8750791 DOI: 10.3390/foods11010027] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 12/17/2021] [Accepted: 12/20/2021] [Indexed: 12/20/2022] Open
Abstract
As the largest immune organ of the human body, the intestine also plays a vital role in nutrient digestion and absorption. Some vegetables are considered to have improvement effects on the intestine. This experiment explored the effects of freeze-dried asparagus, broccoli and cabbage powder on the intestinal immune homeostasis and microflora of mice. Thirty-two mice were divided into four groups (n = 8), including control group (fed normal diet), asparagus group (fed normal diet with 5% asparagus power), broccoli group (fed normal diet with 5% broccoli power) and cabbage group (fed normal diet with 5% cabbage power). The experiment lasted 21 days. The results showed that the serum immunoglobulin concentration (IgA and IgM) and intestinal cytokine content (like IFN-γ and TNF-α) were increased after vegetable powder supplement. The experiment also detected that vegetable powder supplementation changed intestinal flora and their metabolites (short-chain fatty acid), which showed that the abundance of Lachnospiraceae and Bacteroides were decreased, while the abundance of Firmicutes and Lactobacillus as well as propionic acid and butyric acid contents were increased. Together, these vegetable powders, especially cabbage, changed the intestinal immune response and microbial activity of mice.
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Affiliation(s)
- Yixin Zou
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University (BTBU), Beijing 100048, China;
- State Key Laboratory of Food Science and Technology, Institute of Nutrition and School of Food Science, Nanchang University, Nanchang 330047, China; (H.Y.); (L.Z.)
| | - Haifei Yu
- State Key Laboratory of Food Science and Technology, Institute of Nutrition and School of Food Science, Nanchang University, Nanchang 330047, China; (H.Y.); (L.Z.)
| | - Li Zhang
- State Key Laboratory of Food Science and Technology, Institute of Nutrition and School of Food Science, Nanchang University, Nanchang 330047, China; (H.Y.); (L.Z.)
| | - Zheng Ruan
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University (BTBU), Beijing 100048, China;
- State Key Laboratory of Food Science and Technology, Institute of Nutrition and School of Food Science, Nanchang University, Nanchang 330047, China; (H.Y.); (L.Z.)
- Correspondence: ; Fax: +86-791-8827-2923
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19
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Zheng J, Wang H, Deng Z, Shan Y, Lü X, Zhao X. Structure and biological activities of glycoproteins and their metabolites in maintaining intestinal health. Crit Rev Food Sci Nutr 2021:1-16. [PMID: 34619993 DOI: 10.1080/10408398.2021.1987857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Glycoproteins formed by covalent links between oligosaccharide and polypeptides are abundant in various food sources. They are less sensitivity to gastrointestinal enzymes, and hence many of them undergo fermentation in the colon by microorganisms. Therefore, the confer various health benefits on the intestinal ecosystem. However, the current understanding of the effect of glycoproteins on intestinal microorganisms and gut health is limited. This is probably due to their heterogeneous structures and complex metabolic programming patterns. The structure and biological activities of glycoproteins and their microbial metabolites were summarized in this review. The metabolic pathways activated by intestinal bacteria were then discussed in relation to their potential benefits on gut health. Food-derived glycoproteins and their metabolites improve gut health by regulating the intestinal bacteria and improving intestinal barrier function, thereby amplifying immune response. The data reviewed here show that food-derived glycoproteins are promising candidates for preventing various gastrointestinal diseases. Further studies should explore the interaction mechanisms between intestinal microorganisms and host metabolites.
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Affiliation(s)
- Jiaqi Zheng
- College of Food Science and Engineering, Northwest A&F University, Yangling, PR China
| | - Haotian Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling, PR China
| | - Zhanfei Deng
- College of Food Science and Engineering, Northwest A&F University, Yangling, PR China
| | - Yuanyuan Shan
- College of Food Science and Engineering, Northwest A&F University, Yangling, PR China
| | - Xin Lü
- College of Food Science and Engineering, Northwest A&F University, Yangling, PR China
| | - Xue Zhao
- Department of Nursing, Shandong College of Traditional Chinese Medicine, Yantai, PR China
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