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Pedrosa LDF, Kouzounis D, Schols H, de Vos P, Fabi JP. Assessing high-temperature and pressure extraction of bioactive water-soluble polysaccharides from passion fruit mesocarp. Carbohydr Polym 2024; 335:122010. [PMID: 38616103 DOI: 10.1016/j.carbpol.2024.122010] [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: 11/16/2023] [Revised: 02/16/2024] [Accepted: 02/29/2024] [Indexed: 04/16/2024]
Abstract
The mesocarp (albedo) of passion fruit is considered a waste product but rich in soluble fibers, especially pectins. Biological activity and health benefits of pectins have recently emerged, especially in colorectal cancer and attenuating inflammation. Pectin conventional extraction often uses mineral acids, which can be hazardous to the environment, and alternatives can be costly. Here, we assessed a high-temperature and pressure method to extract pectin from the passion fruit albedo and evaluated the differences from the water-soluble fractions extracted. HPSEC, HPAEC, FTIR-ATR, and HSQC-NMR were performed to identify and confirm the highly methylated homogalacturonan structures. The heat-modified samples showed a decreased molecular size compared to the untreated sample. Colorectal cancer cell lines showed reduced viability after being treated with different doses of modified samples, with two of them, LW-MP3 and 4, showing the most potent effects. All samples were detected inside cells by immunofluorescence assay. It was observed that LW-MP3 and 4 upregulated the p53 protein, indicating cell-cycle arrest and the cleaved caspase-9 in one of the cell lines, with LW-MP4 enhancing cell death by apoptosis. Since the modified samples were composed of hydrolyzed homogalacturonans, those probably were the responsible structures for these anti-cancer effects.
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Affiliation(s)
- Lucas de Freitas Pedrosa
- Department of Food Science and Experimental Nutrition, School of Pharmaceutical Sciences, University of São Paulo, São Paulo 05508-000, SP, Brazil; Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, 9713 GZ Groningen, the Netherlands; Laboratory of Food Chemistry, Wageningen University & Research, Bornse Weilanden 9, 6708 WG Wageningen, the Netherlands.
| | - Dimitrios Kouzounis
- Laboratory of Food Chemistry, Wageningen University & Research, Bornse Weilanden 9, 6708 WG Wageningen, the Netherlands.
| | - Henk Schols
- Laboratory of Food Chemistry, Wageningen University & Research, Bornse Weilanden 9, 6708 WG Wageningen, the Netherlands.
| | - Paul de Vos
- Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, 9713 GZ Groningen, the Netherlands.
| | - João Paulo Fabi
- Department of Food Science and Experimental Nutrition, School of Pharmaceutical Sciences, University of São Paulo, São Paulo 05508-000, SP, Brazil; Food and Nutrition Research Center (NAPAN), University of São Paulo, São Paulo 05508-000, SP, Brazil; Food Research Center (FoRC), CEPID-FAPESP (Research, Innovation and Dissemination Centers, São Paulo Research Foundation), São Paulo 05508-080, SP, Brazil.
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2
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Liu X, Wang B, Tang S, Yue Y, Xi W, Tan X, Li G, Bai J, Huang L. Modification, biological activity, applications, and future trends of citrus fiber as a functional component: A comprehensive review. Int J Biol Macromol 2024; 269:131798. [PMID: 38677689 DOI: 10.1016/j.ijbiomac.2024.131798] [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: 10/19/2023] [Revised: 03/06/2024] [Accepted: 03/26/2024] [Indexed: 04/29/2024]
Abstract
Citrus fiber, a by-product of citrus processing that has significant nutritional and bioactive properties, has gained attention as a promising raw material with extensive developmental potential in the food, pharmaceutical, and feed industries. However, the lack of in-depth understanding regarding citrus fiber, including its structure, modification, mechanism of action, and potential applications is holding back its development and utilization in functional foods and drugs. This review explores the status of extraction methods and modifications applied to citrus fiber to augment its health benefits. With the aim of introducing readers to the potential health benefits of citrus fibers, we have placed special emphasis on their regulatory mechanisms in the context of various conditions, including type 2 diabetes mellitus, cardiovascular disease, obesity, and cancer. Furthermore, this review highlights the applications and prospects of citrus fiber, aiming to provide a theoretical basis for the utilization and exploration of this valuable resource.
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Affiliation(s)
- Xin Liu
- Citrus Research Institute, Southwest University, Chongqing 400700, China; National Citrus Engineering Research Center, Chongqing 400700, China
| | - Botao Wang
- Bloomage Biotechnology CO, LTD., Jinan 250000, China
| | - Sheng Tang
- Citrus Research Institute, Southwest University, Chongqing 400700, China; National Citrus Engineering Research Center, Chongqing 400700, China
| | - Yuanyuan Yue
- Citrus Research Institute, Southwest University, Chongqing 400700, China; School of Food Science and Technology, Shihezi University, Shihezi 832000, China
| | - Wenxia Xi
- Citrus Research Institute, Southwest University, Chongqing 400700, China; School of Food Science and Technology, Shihezi University, Shihezi 832000, China
| | - Xiang Tan
- Citrus Research Institute, Southwest University, Chongqing 400700, China; National Citrus Engineering Research Center, Chongqing 400700, China
| | - Guijie Li
- Citrus Research Institute, Southwest University, Chongqing 400700, China; National Citrus Engineering Research Center, Chongqing 400700, China
| | - Junying Bai
- Citrus Research Institute, Southwest University, Chongqing 400700, China; National Citrus Engineering Research Center, Chongqing 400700, China.
| | - Linhua Huang
- Citrus Research Institute, Southwest University, Chongqing 400700, China; National Citrus Engineering Research Center, Chongqing 400700, China.
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3
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Pedrosa LDF, Fabi JP. Dietary fiber as a wide pillar of colorectal cancer prevention and adjuvant therapy. Crit Rev Food Sci Nutr 2024; 64:6177-6197. [PMID: 36606552 DOI: 10.1080/10408398.2022.2164245] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Colorectal cancer is the third most incident and second most lethal type of cancer worldwide. Lifestyle and dietary patterns are the key factors for higher disease development risk. The dietary fiber intake from fruits and vegetables, mainly formed by food hydrocolloids, can help to lower the incidence of this type of neoplasia. Different food polysaccharides have applications in anti-tumoral therapy, such as coadjuvant to mainstream drugs, carriage-like properties, or direct influence on tumoral cells. Some classes include inulin, β-glucans, pectins, fucoidans, alginates, mucilages, and gums. Therefore, it is fundamental to discuss colorectal cancer mechanisms and the roles played by different polysaccharides in intestinal health. Genetic, environmental, and immunological modulation of mutated pathways regarding colorectal cancer has been explored before. Microbial diversity, byproduct formation (primarily short-chain fatty acids), inflammatory profile control, and tumoral mutated pathways regulation are thoroughly explored mechanisms by which dietary fiber sources influence a healthy gut ambiance.
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Affiliation(s)
- Lucas de Freitas Pedrosa
- Department of Food Science and Experimental Nutrition, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, SP, Brazil
| | - João Paulo Fabi
- Food and Nutrition Research Center (NAPAN), University of São Paulo, São Paulo, SP, Brazil
- Food Research Center (FoRC), CEPID-FAPESP (Research, Innovation and Dissemination Centers, São Paulo Research Foundation), São Paulo, SP, Brazil
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4
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Donadio JLS, Prado SBRD, Soares CG, Tamarossi RI, Heidor R, Moreno FS, Fabi JP. Ripe papaya pectins inhibit the proliferation of colon cancer spheroids and the formation of chemically induced aberrant crypts in rats colons. Carbohydr Polym 2024; 331:121878. [PMID: 38388061 DOI: 10.1016/j.carbpol.2024.121878] [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: 10/16/2023] [Revised: 12/28/2023] [Accepted: 01/25/2024] [Indexed: 02/24/2024]
Abstract
Pectins are a class of soluble polysaccharides that can have anticancer properties through several mechanisms. This study aimed to characterize the molecular structure of water-soluble fractions (WSF) derived from ripe and unripe papayas and assess their biological effects in two models: the 3D colon cancer spheroids to measure cell viability and cytotoxicity, and the in vivo model to investigate the inhibition of preneoplastic lesions in rats. WSF yield was slightly higher in ripe papaya, and both samples mainly consisted of pectin. Both pectins inhibited the growth of colon cancer HT29 and HCT116 spheroids. Unripe pectin disturbed HT29/NIH3T3 spheroid formation, decreased HCT116 spheroid viability, and increased spheroid cytotoxicity. Ripe pectin had a more substantial effect on the reduction of spheroid viability for HT29 spheroids. Furthermore, in vivo experiments on a rat model revealed a decrease in aberrant crypt foci (ACF) formation for both pectins and increased apoptosis in colonocytes for ripe papaya pectins. The results suggest potential anticancer properties of papaya pectin, with ripe pectin showing a higher potency.
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Affiliation(s)
- Janaina L S Donadio
- University of São Paulo, Department of Food and Experimental Nutrition, Faculty of Pharmaceutical Sciences, Av. Prof. Lineu Prestes 580, São Paulo, SP, Brazil; Food Research Center (FoRC), CEPID-FAPESP, Research Innovation and Dissemination Centers, São Paulo Research Foundation, Rua do Lago, 250, São Paulo, SP, Brazil
| | | | - Caroline Giacomelli Soares
- University of São Paulo, Department of Food and Experimental Nutrition, Faculty of Pharmaceutical Sciences, Av. Prof. Lineu Prestes 580, São Paulo, SP, Brazil
| | - Rodrigo Invernort Tamarossi
- University of São Paulo, Department of Food and Experimental Nutrition, Faculty of Pharmaceutical Sciences, Av. Prof. Lineu Prestes 580, São Paulo, SP, Brazil
| | - Renato Heidor
- University of São Paulo, Department of Food and Experimental Nutrition, Faculty of Pharmaceutical Sciences, Av. Prof. Lineu Prestes 580, São Paulo, SP, Brazil
| | - Fernando Salvador Moreno
- University of São Paulo, Department of Food and Experimental Nutrition, Faculty of Pharmaceutical Sciences, Av. Prof. Lineu Prestes 580, São Paulo, SP, Brazil
| | - João Paulo Fabi
- University of São Paulo, Department of Food and Experimental Nutrition, Faculty of Pharmaceutical Sciences, Av. Prof. Lineu Prestes 580, São Paulo, SP, Brazil; Food Research Center (FoRC), CEPID-FAPESP, Research Innovation and Dissemination Centers, São Paulo Research Foundation, Rua do Lago, 250, São Paulo, SP, Brazil; Food and Nutrition Research Center (NAPAN), University of São Paulo, São Paulo, SP, Brazil.
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5
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Neto Í, Rocha J, Gaspar MM, Reis CP. Experimental Murine Models for Colorectal Cancer Research. Cancers (Basel) 2023; 15:cancers15092570. [PMID: 37174036 PMCID: PMC10177088 DOI: 10.3390/cancers15092570] [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: 03/29/2023] [Revised: 04/25/2023] [Accepted: 04/26/2023] [Indexed: 05/15/2023] Open
Abstract
Colorectal cancer (CRC) is the third most prevalent malignancy worldwide and in both sexes. Numerous animal models for CRC have been established to study its biology, namely carcinogen-induced models (CIMs) and genetically engineered mouse models (GEMMs). CIMs are valuable for assessing colitis-related carcinogenesis and studying chemoprevention. On the other hand, CRC GEMMs have proven to be useful for evaluating the tumor microenvironment and systemic immune responses, which have contributed to the discovery of novel therapeutic approaches. Although metastatic disease can be induced by orthotopic injection of CRC cell lines, the resulting models are not representative of the full genetic diversity of the disease due to the limited number of cell lines suitable for this purpose. On the other hand, patient-derived xenografts (PDX) are the most reliable for preclinical drug development due to their ability to retain pathological and molecular characteristics. In this review, the authors discuss the various murine CRC models with a focus on their clinical relevance, benefits, and drawbacks. From all models discussed, murine CRC models will continue to be an important tool in advancing our understanding and treatment of this disease, but additional research is required to find a model that can correctly reflect the pathophysiology of CRC.
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Affiliation(s)
- Íris Neto
- Research Institute for Medicines (iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - João Rocha
- Research Institute for Medicines (iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Maria Manuela Gaspar
- Research Institute for Medicines (iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Catarina P Reis
- Research Institute for Medicines (iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
- Instituto de Biofísica e Engenharia Biomédica (IBEB), Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
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Wang C, Bai J, Chen X, Song J, Zhang Y, Wang H, Suo H. Gut microbiome-based strategies for host health and disease. Crit Rev Food Sci Nutr 2023; 64:6834-6849. [PMID: 36803092 DOI: 10.1080/10408398.2023.2176464] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
Host health and disease are influenced by changes in the abundance and structure of intestinal flora. Current strategies are focused on regulating the structure of intestinal flora to ensure host health by alleviating disease. However, these strategies are limited by multiple factors, such as host genotype, physiology (microbiome, immunity, and gender), intervention, and diet. Accordingly, we reviewed the prospects and limitations of all strategies regulating the structure and abundance of microflora, including probiotics, prebiotics, diet, fecal microbiota transplantation, antibiotics, and phages. Some new technologies that can improve these strategies are also introduced. Compared with other strategies, diets and prebiotics are associated with reduced risk and high security. Besides, phages have the potential for application in the targeted regulation of intestinal microbiota due to their high specificity. Notably, the variability in individual microflora and their metabolic response to different interventions should be considered. Future studies should use artificial intelligence combined with multi-omics to investigate the host genome and physiology based on factors, such as blood type, dietary habits, and exercise, in order to develop individualized intervention strategies to improve host health.
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Affiliation(s)
- Chen Wang
- College of Food Science, Southwest University, Chongqing, China
| | - Junying Bai
- Citrus Research Institute, National Citrus Engineering Research Center, Southwest University, Chongqing, China
| | - Xiaoyong Chen
- College of Food Science, Southwest University, Chongqing, China
| | - Jiajia Song
- College of Food Science, Southwest University, Chongqing, China
| | - Yu Zhang
- College of Food Science, Southwest University, Chongqing, China
| | - Hongwei Wang
- College of Food Science, Southwest University, Chongqing, China
| | - Huayi Suo
- College of Food Science, Southwest University, Chongqing, China
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7
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Feng X, Li Z, Guo W, Hu Y. The effects of traditional Chinese medicine and dietary compounds on digestive cancer immunotherapy and gut microbiota modulation: A review. Front Immunol 2023; 14:1087755. [PMID: 36845103 PMCID: PMC9945322 DOI: 10.3389/fimmu.2023.1087755] [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: 11/02/2022] [Accepted: 01/17/2023] [Indexed: 02/09/2023] Open
Abstract
Digestive tract-related cancers account for four of the top ten high-risk cancers worldwide. In recent years, cancer immunotherapy, which exploits the innate immune system to attack tumors, has led to a paradigm shifts in cancer treatment. Gut microbiota modification has been widely used to regulate cancer immunotherapy. Dietary compounds and traditional Chinese medicine (TCM) can alter the gut microbiota and its influence on toxic metabolite production, such as the effect of iprindole on lipopolysaccharide (LPS), and involvement in various metabolic pathways that are closely associated with immune reactions. Therefore, it is an effective strategy to explore new immunotherapies for gastrointestinal cancer to clarify the immunoregulatory effects of different dietary compounds/TCMs on intestinal microbiota. In this review, we have summarized recent progress regarding the effects of dietary compounds/TCMs on gut microbiota and their metabolites, as well as the relationship between digestive cancer immunotherapy and gut microbiota. We hope that this review will act as reference, providing a theoretical basis for the clinical immunotherapy of digestive cancer via gut microbiota modulation.
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Affiliation(s)
- Xiaoli Feng
- Stomatological Hospital, Southern Medical University, Guangzhou, China
| | - Zhenhao Li
- Department of General Surgery, Nanfang Hospital, The First School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Weihong Guo
- Department of General Surgery, Nanfang Hospital, The First School of Clinical Medicine, Southern Medical University, Guangzhou, China,*Correspondence: Weihong Guo, ; Yanfeng Hu,
| | - Yanfeng Hu
- Department of General Surgery, Nanfang Hospital, The First School of Clinical Medicine, Southern Medical University, Guangzhou, China,*Correspondence: Weihong Guo, ; Yanfeng Hu,
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Emran TB, Islam F, Mitra S, Paul S, Nath N, Khan Z, Das R, Chandran D, Sharma R, Lima CMG, Awadh AAA, Almazni IA, Alhasaniah AH, Guiné RPF. Pectin: A Bioactive Food Polysaccharide with Cancer Preventive Potential. Molecules 2022; 27:7405. [PMID: 36364232 PMCID: PMC9657392 DOI: 10.3390/molecules27217405] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 10/25/2022] [Accepted: 10/26/2022] [Indexed: 07/30/2023] Open
Abstract
Pectin is an acidic heteropolysaccharide found in the cell walls and the primary and middle lamella of land plants. To be authorized as a food additive, industrial pectins must meet strict guidelines set forth by the Food and Agricultural Organization and must contain at least 65% polygalacturonic acid to achieve the E440 level. Fruit pectin derived from oranges or apples is commonly used in the food industry to gel or thicken foods and to stabilize acid-based milk beverages. It is a naturally occurring component and can be ingested by dietary consumption of fruit and vegetables. Preventing long-term chronic diseases like diabetes and heart disease is an important role of dietary carbohydrates. Colon and breast cancer are among the diseases for which data suggest that modified pectin (MP), specifically modified citrus pectin (MCP), has beneficial effects on the development and spread of malignancies, in addition to its benefits as a soluble dietary fiber. Cellular and animal studies and human clinical trials have provided corroborating data. Although pectin has many diverse functional qualities, this review focuses on various modifications used to develop MP and its benefits for cancer prevention, bioavailability, clinical trials, and toxicity studies. This review concludes that pectin has anti-cancer characteristics that have been found to inhibit tumor development and proliferation in a wide variety of cancer cells. Nevertheless, further clinical and basic research is required to confirm the chemopreventive or therapeutic role of specific dietary carbohydrate molecules.
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Affiliation(s)
- Talha Bin Emran
- Department of Pharmacy, BGC Trust University Bangladesh, Chittagong 4381, Bangladesh
- Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, Dhaka 1207, Bangladesh
| | - Fahadul Islam
- Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, Dhaka 1207, Bangladesh
| | - Saikat Mitra
- Department of Pharmacy, Faculty of Pharmacy, University of Dhaka, Dhaka 1000, Bangladesh
| | - Shyamjit Paul
- Department of Pharmacy, Faculty of Pharmacy, University of Dhaka, Dhaka 1000, Bangladesh
| | - Nikhil Nath
- Department of Pharmacy, International Islamic University Chittagong, Chittagong 4318, Bangladesh
| | - Zidan Khan
- Department of Pharmacy, International Islamic University Chittagong, Chittagong 4318, Bangladesh
| | - Rajib Das
- Department of Pharmacy, Faculty of Pharmacy, University of Dhaka, Dhaka 1000, Bangladesh
| | - Deepak Chandran
- Department of Veterinary Sciences and Animal Husbandry, Amrita School of Agricultural Sciences, Amrita Vishwa Vidyapeetham University, Coimbatore 642109, Tamil Nadu, India
| | - Rohit Sharma
- Department of Rasa Shastra and Bhaishajya Kalpana, Faculty of Ayurveda, Institute of Medical Sciences, Banaras Hindu University, Varanasi 221005, Uttar Pradesh, India
| | | | - Ahmed Abdullah Al Awadh
- Department of Clinical Laboratory Sciences, Faculty of Applied Medical Sciences, Najran University, P.O. Box 1988, Najran 61441, Saudi Arabia
| | - Ibrahim Abdullah Almazni
- Department of Clinical Laboratory Sciences, Faculty of Applied Medical Sciences, Najran University, P.O. Box 1988, Najran 61441, Saudi Arabia
| | - Abdulaziz Hassan Alhasaniah
- Department of Clinical Laboratory Sciences, Faculty of Applied Medical Sciences, Najran University, P.O. Box 1988, Najran 61441, Saudi Arabia
| | - Raquel P. F. Guiné
- CERNAS Research Centre, Department of Food Industry, Polytechnic Institute of Viseu, 3504-510 Viseu, Portugal
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Miao ST, Lu QS, Zhou YJ, Chang YN, Xu T, Zhu MY. Oral administration of octacosanol modulates the gut bacteria and protects the intestinal barrier in ulcerative colitis mice. J Food Biochem 2022; 46:e14284. [PMID: 35746852 DOI: 10.1111/jfbc.14284] [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: 01/20/2022] [Revised: 05/03/2022] [Accepted: 05/30/2022] [Indexed: 11/26/2022]
Abstract
Octacosanol (Oct), a kind of long-chain fatty alcohol extracted from rice bran was applied to study its effects on alleviating ulcerative colitis (UC). Oct was orally administered at 10 mg/kg (Oct-L) and 30 mg/kg (Oct-H) to dextran sulfate sodium (DSS)-induced mice. Here, we reported that oral administration of 30 mg/kg Oct can significantly prevent the weight loss, colon shortening, and decrease the disease activity index (DAI) score. Oct-H supplementation modified the intestinal flora by lowering the Firmicutes/Bacteroidetes (F/B) ratio, increasing the abundance of Prevotellaceae, S24-7, Turicibacter, and meanwhile decreasing Enterococcus and Stenotrophomonas. Based on the PICRUSt2 analysis, Oct-H may exert effects by anti-inflammation and xenobiotics degradation. Furthermore, short-chain fatty acids (SCFAs) levels were raised and the integrity of the gut barrier was protected. In conclusion, Oct-H can relieve clinical symptoms, modulate the gut bacteria and protect the intestinal barrier in UC mice, suggesting the potential of Oct as a food supplementation in alleviating UC. PRACTICAL APPLICATIONS: Ulcerative colitis (UC) is a hard-to-cure disease, with increasing morbidity in recent years. Therefore, finding out a food supplement to alleviate UC is very meaningful. In this work, we showed that octacosanol significantly alleviated ulcerative colitis in mice. We revealed, for the first time, octacosanol's effects on protecting the integrity of the gut barrier, modulating the intestinal flora and its metabolism (SCFAs). Therefore, octacosanol was expected to prevent colitis in an all-round way. Our research might also lay the theoretical foundation for the further development of related functional foods.
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Affiliation(s)
- Shu-Ting Miao
- The State Key Laboratory of Bioreactor Engineering, College of Bioengineering, East China University of Science and Technology, Shanghai, People's Republic of China
| | - Qian-Shan Lu
- The State Key Laboratory of Bioreactor Engineering, College of Bioengineering, East China University of Science and Technology, Shanghai, People's Republic of China
| | - Ying-Jun Zhou
- The State Key Laboratory of Bioreactor Engineering, College of Bioengineering, East China University of Science and Technology, Shanghai, People's Republic of China
| | - Ya-Ning Chang
- The State Key Laboratory of Bioreactor Engineering, College of Bioengineering, East China University of Science and Technology, Shanghai, People's Republic of China
| | - Tao Xu
- Huzhou Shengtao Biotech LLC, Zhejiang, China
| | - Meng-Yu Zhu
- The State Key Laboratory of Bioreactor Engineering, College of Bioengineering, East China University of Science and Technology, Shanghai, People's Republic of China
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10
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Xu J, Xu R, Jia M, Su Y, Zhu W. Metatranscriptomic analysis of colonic microbiota's functional response to different dietary fibers in growing pigs. Anim Microbiome 2021; 3:45. [PMID: 34217374 PMCID: PMC8254964 DOI: 10.1186/s42523-021-00108-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 06/23/2021] [Indexed: 01/30/2023] Open
Abstract
Background Dietary fibers are widely considered to be beneficial to health as they produce nutrients through gut microbial fermentation while facilitating weight management and boosting gut health. To date, the gene expression profiles of the carbohydrate active enzymes (CAZymes) that respond to different types of fibers (raw potato starch, RPS; inulin, INU; pectin, PEC) in the gut microbes of pigs are not well understood. Therefore, we investigated the functional response of colonic microbiota to different dietary fibers in pigs through metatranscriptomic analysis. Results The results showed that the microbial composition and CAZyme structure of the three experimental groups changed significantly compared with the control group (CON). Based on a comparative analysis with the control diet, RPS increased the abundance of Parabacteroides, Ruminococcus, Faecalibacterium and Alloprevotella but decreased Sutterella; INU increased the relative abundance of Fusobacterium and Rhodococcus but decreased Bacillus; and PEC increased the relative abundance of the Streptococcus and Bacteroidetes groups but decreased Clostridium, Clostridioides, Intestinibacter, Gemmiger, Muribaculum and Vibrio. The gene expression of CAZymes GH8, GH14, GH24, GH38, GT14, GT31, GT77 and GT91 downregulated but that of GH77, GH97, GT3, GT10 and GT27 upregulated in the RPS diet group; the gene expression of AA4, AA7, GH14, GH15, GH24, GH26, GH27, GH38, GH101, GT26, GT27 and GT38 downregulated in the INU group; and the gene expression of PL4, AA1, GT32, GH18, GH37, GH101 and GH112 downregulated but that of CE14, AA3, AA12, GH5, GH102 and GH103 upregulated in the PEC group. Compared with the RPS and INU groups, the composition of colonic microbiota in the PEC group exhibited more diverse changes with the variation of CAZymes and Streptococcus as the main contributor to CBM61, which greatly promoted the digestion of pectin. Conclusion The results of this exploratory study provided a comprehensive overview of the effects of different fibers on nutrient digestibility, gut microbiota and CAZymes in pig colon, which will furnish new insights into the impacts of the use of dietary fibers on animal and human health. Supplementary Information The online version contains supplementary material available at 10.1186/s42523-021-00108-1.
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Affiliation(s)
- Jie Xu
- Laboratory of Gastrointestinal Microbiology, Jiangsu Key Laboratory of Gastrointestinal Nutrition and Animal Health, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China.,National Center for International Research on Animal Gut Nutrition, Nanjing Agricultural University, Nanjing, 210095, China
| | - Rongying Xu
- Laboratory of Gastrointestinal Microbiology, Jiangsu Key Laboratory of Gastrointestinal Nutrition and Animal Health, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China.,National Center for International Research on Animal Gut Nutrition, Nanjing Agricultural University, Nanjing, 210095, China
| | - Menglan Jia
- Laboratory of Gastrointestinal Microbiology, Jiangsu Key Laboratory of Gastrointestinal Nutrition and Animal Health, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China.,National Center for International Research on Animal Gut Nutrition, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yong Su
- Laboratory of Gastrointestinal Microbiology, Jiangsu Key Laboratory of Gastrointestinal Nutrition and Animal Health, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China. .,National Center for International Research on Animal Gut Nutrition, Nanjing Agricultural University, Nanjing, 210095, China.
| | - Weiyun Zhu
- Laboratory of Gastrointestinal Microbiology, Jiangsu Key Laboratory of Gastrointestinal Nutrition and Animal Health, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China.,National Center for International Research on Animal Gut Nutrition, Nanjing Agricultural University, Nanjing, 210095, China
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