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Xu P, Xi Y, Kim JW, Zhu J, Zhang M, Xu M, Ren S, Yang D, Ma X, Xie W. Sulfation of chondroitin and bile acids converges to antagonize Wnt/ β-catenin signaling and inhibit APC deficiency-induced gut tumorigenesis. Acta Pharm Sin B 2024; 14:1241-1256. [PMID: 38487006 PMCID: PMC10935170 DOI: 10.1016/j.apsb.2023.12.006] [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: 06/26/2023] [Revised: 10/06/2023] [Accepted: 11/23/2023] [Indexed: 03/17/2024] Open
Abstract
Sulfation is a crucial and prevalent conjugation reaction involved in cellular processes and mammalian physiology. 3'-Phosphoadenosine 5'-phosphosulfate (PAPS) synthase 2 (PAPSS2) is the primary enzyme to generate the universal sulfonate donor PAPS. The involvement of PAPSS2-mediated sulfation in adenomatous polyposis coli (APC) mutation-promoted colonic carcinogenesis has not been reported. Here, we showed that the expression of PAPSS2 was decreased in human colon tumors along with cancer stages, and the lower expression of PAPSS2 was correlated with poor prognosis in advanced colon cancer. Gut epithelial-specific heterozygous Apc deficient and Papss2-knockout (ApcΔgut-HetPapss2Δgut) mice were created, and the phenotypes were compared to the spontaneous intestinal tumorigenesis of ApcΔgut-Het mice. ApcΔgut-HetPapss2Δgut mice were more sensitive to gut tumorigenesis, which was mechanistically accounted for by the activation of Wnt/β-catenin signaling pathway due to the suppression of chondroitin sulfation and inhibition of the farnesoid X receptor (FXR)-transducin-like enhancer of split 3 (TLE3) gene regulatory axis. Chondroitin sulfate supplementation in ApcΔgut-HetPapss2Δgut mice alleviated intestinal tumorigenesis. In summary, we have uncovered the protective role of PAPSS2-mediated chondroitin sulfation and bile acids-FXR-TLE3 activation in the prevention of gut carcinogenesis via the antagonization of Wnt/β-catenin signaling. Chondroitin sulfate may be explored as a therapeutic agent for Papss2 deficiency-associated colonic carcinogenesis.
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Affiliation(s)
- Pengfei Xu
- Center for Pharmacogenetics and Department of Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, PA 15261, USA
- Department of Hepatobiliary and Pancreatic Surgery, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan 430071, China
| | - Yue Xi
- Center for Pharmacogenetics and Department of Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Jong-Won Kim
- Center for Pharmacogenetics and Department of Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Junjie Zhu
- Center for Pharmacogenetics and Department of Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Min Zhang
- Center for Pharmacogenetics and Department of Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Meishu Xu
- Center for Pharmacogenetics and Department of Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Songrong Ren
- Center for Pharmacogenetics and Department of Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Da Yang
- Center for Pharmacogenetics and Department of Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Xiaochao Ma
- Center for Pharmacogenetics and Department of Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Wen Xie
- Center for Pharmacogenetics and Department of Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, PA 15261, USA
- Department of Pharmacology & Chemical Biology, University of Pittsburgh, Pittsburgh, PA 15261, USA
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Mneimneh AT, Mehanna MM. Chondroitin Sulphate: An emerging therapeutic multidimensional proteoglycan in colon cancer. Int J Biol Macromol 2024; 254:127672. [PMID: 38287564 DOI: 10.1016/j.ijbiomac.2023.127672] [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: 06/03/2023] [Revised: 10/19/2023] [Accepted: 10/23/2023] [Indexed: 01/31/2024]
Abstract
Chondroitin sulfate (CS) is a sulfated glycosaminoglycan (GAG) that has captured massive attention in the field of drug delivery. As the colon is considered the preferred site for local and systemic delivery of bioactive agents for the treatment of various diseases, colon-targeted drug delivery rose to the surface of research. Amid several tactics to attain colon-targeted drug release, the exploitation of polymers degraded by colonic bacteria holds great promise. Chondroitin sulfate as a biodegradable, biocompatible mucopolysaccharide is known for its anti-inflammatory, anti-osteoarthritis, anti-atherosclerotic, anti-oxidant, and anti-coagulant effects. Besides these therapeutic functions, CS thrived to play a major role in nanocarriers as a matrix material, coat, and targeting ligand. This review focuses on the role of CS in nanocarriers as a matrix material or as a targeting moiety for colon cancer therapy, relating the present applications to future perspectives.
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Affiliation(s)
- Amina T Mneimneh
- Pharmaceutical Nanotechnology Research Lab, Faculty of Pharmacy, Beirut Arab University, Beirut, Lebanon.
| | - Mohammed M Mehanna
- Department of Industrial Pharmacy, Faculty of Pharmacy, Alexandria University, Alexandria, 21521, Egypt; Department of Pharmaceutical Sciences, School of Pharmacy, Lebanese American University, Byblos, Lebanon.
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Xu P, Cai X, Guan X, Xie W. Sulfoconjugation of protein peptides and glycoproteins in physiology and diseases. Pharmacol Ther 2023; 251:108540. [PMID: 37777160 PMCID: PMC10842354 DOI: 10.1016/j.pharmthera.2023.108540] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 09/21/2023] [Accepted: 09/25/2023] [Indexed: 10/02/2023]
Abstract
Protein sulfoconjugation, or sulfation, represents a critical post-translational modification (PTM) process that involves the attachment of sulfate groups to various positions of substrates within the protein peptides or glycoproteins. This process plays a dynamic and complex role in many physiological and pathological processes. Here, we summarize the importance of sulfation in the fields of oncology, virology, drug-induced liver injury (DILI), inflammatory bowel disease (IBD), and atherosclerosis. In oncology, sulfation is involved in tumor initiation, progression, and migration. In virology, sulfation influences viral entry, replication, and host immune response. In DILI, sulfation is associated with the incidence of DILI, where altered sulfation affects drug metabolism and toxicity. In IBD, dysregulation of sulfation compromises mucosal barrier and immune response. In atherosclerosis, sulfation influences the development of atherosclerosis by modulating the accumulation of lipoprotein, and the inflammation, proliferation, and migration of smooth muscle cells. The current review underscores the importance of further research to unravel the underlying mechanisms and therapeutic potential of targeting sulfoconjugation in various diseases. A better understanding of sulfation could facilitate the emergence of innovative diagnostic or therapeutic strategies.
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Affiliation(s)
- Pengfei Xu
- Center for Pharmacogenetics and Department of Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, PA 15261, USA; Department of Hepatobiliary and Pancreatic Surgery, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan 430072, China
| | - Xinran Cai
- Center for Pharmacogenetics and Department of Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Xiuchen Guan
- Department of Orthodontics, School of Stomatology, Capital Medical University, Beijing 100069, China
| | - Wen Xie
- Center for Pharmacogenetics and Department of Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, PA 15261, USA; Department of Pharmacology & Chemical Biology, University of Pittsburgh, Pittsburgh, PA 15261, USA.
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Mizuta H, Kawahara S, Tsutsumi N, Miyamoto N. Quantification of orally administered chondroitin sulfate oligosaccharides in human plasma and urine. Glycobiology 2023; 33:755-763. [PMID: 37440435 DOI: 10.1093/glycob/cwad054] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 06/14/2023] [Accepted: 06/29/2023] [Indexed: 07/15/2023] Open
Abstract
Chondroitin sulfate has been widely administered orally to improve knee osteoarthritis. Chondroitin sulfate also has various biological properties, such as anti-inflammatory, immunomodulatory, anti-oxidative, and antitumor activity. However, chondroitin sulfate absorption in the digestive system and bioavailability remains controversial owing to its large molecular weight. In this study, we aimed to evaluate the absorption of chondroitin sulfate oligosaccharides, depolymerized chondroitin sulfate with low molecular weight, in oral administration to humans. Four types of chondroitin sulfate with varying molecular weight [chondroitin sulfate tetrasaccharide (MW. 980), CSOS-1 (MW. 1,500), CSOS-2 (MW. 2,800), and HMWCS (MW. 70,000)] were orally administered and quantified in plasma and urine. Exogenous chondroitin sulfate in these samples was quantified using a high-performance liquid chromatography system equipped with a fluorescence detector. Quantitative changes of administered chondroitin sulfate tetrasaccharide showed similar patterns in plasma and urine, therefore it was presumed that the amount of exogenous chondroitin sulfate excreted in urine reflects its quantitative profile in blood. Considering urinary exogenous chondroitin sulfate as a parameter of intestinal chondroitin sulfate absorption, urinary contents of orally administered chondroitin sulfate with varying molecular weight were compared. Consequently, the amount of urinary exogenous chondroitin sulfate in 24 h after administration was higher in the chondroitin sulfate oligosaccharides group than that in the high molecular weight chondroitin sulfate group. Additionally, in the molecular weight distribution, urinary exogenous chondroitin sulfate after chondroitin sulfate oligosaccharides administration showed a lower content of chondroitin sulfate oligosaccharides with a higher molecular weight than that observed before administration. In summary, our results demonstrated for the first time that lower molecular weight of chondroitin sulfate is more efficiently absorbed through the digestive tract in human, and the improvement of its bioavailability is expected.
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Affiliation(s)
- Hiroko Mizuta
- Fine Chemical Lab., Marukyou Bio Foods Co., Ltd., 2-1-40, Nishi-Miyanosawa 4-jo, Teine, Sapporo, Hokkaido, 006-0004, 42-1-40 Nishi-Miyanosawa, Teine, Sapporo, Hokkaido 006-0004, Japan
| | - Shota Kawahara
- Fine Chemical Lab., Marukyou Bio Foods Co., Ltd., 2-1-40, Nishi-Miyanosawa 4-jo, Teine, Sapporo, Hokkaido, 006-0004, 42-1-40 Nishi-Miyanosawa, Teine, Sapporo, Hokkaido 006-0004, Japan
| | - Naonobu Tsutsumi
- Fine Chemical Lab., Marukyou Bio Foods Co., Ltd., 2-1-40, Nishi-Miyanosawa 4-jo, Teine, Sapporo, Hokkaido, 006-0004, 42-1-40 Nishi-Miyanosawa, Teine, Sapporo, Hokkaido 006-0004, Japan
| | - Nobuyuki Miyamoto
- Fine Chemical Lab., Marukyou Bio Foods Co., Ltd., 2-1-40, Nishi-Miyanosawa 4-jo, Teine, Sapporo, Hokkaido, 006-0004, 42-1-40 Nishi-Miyanosawa, Teine, Sapporo, Hokkaido 006-0004, Japan
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Shen Q, Guo Y, Wang K, Zhang C, Ma Y. A Review of Chondroitin Sulfate's Preparation, Properties, Functions, and Applications. Molecules 2023; 28:7093. [PMID: 37894574 PMCID: PMC10609508 DOI: 10.3390/molecules28207093] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 09/07/2023] [Accepted: 10/10/2023] [Indexed: 10/29/2023] Open
Abstract
Chondroitin sulfate (CS) is a natural macromolecule polysaccharide that is extensively distributed in a wide variety of organisms. CS is of great interest to researchers due to its many in vitro and in vivo functions. CS production derives from a diverse number of sources, including but not limited to extraction from various animals or fish, bio-synthesis, and fermentation, and its purity and homogeneity can vary greatly. The structural diversity of CS with respect to sulfation and saccharide content endows this molecule with distinct complexity, allowing for functional modification. These multiple functions contribute to the application of CS in medicines, biomaterials, and functional foods. In this article, we discuss the preparation of CS from different sources, the structure of various forms of CS, and its binding to other relevant molecules. Moreover, for the creation of this article, the functions and applications of CS were reviewed, with an emphasis on drug discovery, hydrogel formation, delivery systems, and food supplements. We conclude that analyzing some perspectives on structural modifications and preparation methods could potentially influence future applications of CS in medical and biomaterial research.
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Affiliation(s)
- Qingshan Shen
- Zhang Zhongjing College of Chinese Medicine, Nanyang Institute of Technology, Changjiang Road 80, Nanyang 473004, China
- Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Yujie Guo
- Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Kangyu Wang
- Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Chunhui Zhang
- Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Yanli Ma
- Zhang Zhongjing College of Chinese Medicine, Nanyang Institute of Technology, Changjiang Road 80, Nanyang 473004, China
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Singh AK, Peng BY, Chien ST, Chan CH, Deng YH, Pai HY, Wei HJ, Wang MF, Wang SH, Wu CY, Deng WP. Anti-aging biomaterial sturgeon chondroitin sulfate upregulating anti-oxidant and SIRT-1/c-fos gene expression to reprogram stem cell senescence and prolong longevity. Biomater Sci 2023. [PMID: 37158091 DOI: 10.1039/d2bm01997c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Aging involves tissue and cell potential dysfunction characterized by stem cell senescence and extracellular matrix microenvironment (ECM) alteration. Chondroitin sulfate (CS), found in the ECM of normal cells and tissues, aids in maintaining tissue homeostasis. Here, CS-derived biomaterial (CSDB) from sturgeon is extracted to investigate its antiaging effect in senescence-accelerated mouse prone-8 (SAMP8) mice and elucidate the underlying mechanism of its action. Although CSDB has been widely extracted from different sources and used as a scaffold, hydrogel, or drug carrier for the treatment of various pathological diseases, CSDB has not yet been used as a biomaterial for the amelioration of senescence and aging features. In this study, the extracted sturgeon CSDB showed a low molecular weight and comprised 59% 4-sulfated CS and 23% 6-sulfated CS. In an in vitro study, sturgeon CSDB promoted cell proliferation and reduced oxidative stress to inhibit stem cell senescence. In an ex vivo study, after oral CSDB treatment of SAMP8 mice, the stem cells were extracted to analyze the p16Ink4a and p19Arf gene-related pathways, which were inhibited and then SIRT-1 gene expression was upregulated to reprogram stem cells from a senescence state for retarding aging. In an in vivo study, CSDB also restored the aging-phenotype-related bone mineral density and skin morphology to prolong longevity. Thus, sturgeon CSDB may be useful for prolonging healthy longevity as an anti-aging drug.
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Affiliation(s)
- Abhinay Kumar Singh
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 110301, Taiwan
- Stem Cell Research Center, College of Oral Medicine, Taipei Medical University, Taipei 110301, Taiwan.
| | - Bou-Yue Peng
- Department of Dentistry, Taipei Medical University Hospital, Taipei 110301, Taiwan
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 110301, Taiwan
| | - Shaw-Ting Chien
- Stem Cell Research Center, College of Oral Medicine, Taipei Medical University, Taipei 110301, Taiwan.
| | - Chun-Hao Chan
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 110301, Taiwan
- Stem Cell Research Center, College of Oral Medicine, Taipei Medical University, Taipei 110301, Taiwan.
| | - Yue-Hua Deng
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 110301, Taiwan
- Stem Cell Research Center, College of Oral Medicine, Taipei Medical University, Taipei 110301, Taiwan.
| | - Hsiao-Yu Pai
- Stem Cell Research Center, College of Oral Medicine, Taipei Medical University, Taipei 110301, Taiwan.
- Graduate Institute of Biomedical Materials and Tissue Engineering, Taipei Medical University, Taipei 110301, Taiwan
| | - Hong-Jian Wei
- Department of Radiation Oncology, Columbia University Irving Medical Center, 630 W. 168th Street, New York, NY, 10032, USA
| | - Ming-Fu Wang
- Department of Food and Nutrition, Providence University, Taichung 433303, Taiwan
| | - Shwu-Huey Wang
- Core Facility Center, Department of Research Development, Taipei Medical University, Taipei 11030, Taiwan
| | - Chia-Yu Wu
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 110301, Taiwan
- Division of Oral and Maxillofacial Surgery, Department of Dentistry, Taipei Medical University Hospital, Taipei 110301, Taiwan.
| | - Win-Ping Deng
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 110301, Taiwan
- Stem Cell Research Center, College of Oral Medicine, Taipei Medical University, Taipei 110301, Taiwan.
- Graduate Institute of Biomedical and Pharmaceutical Science, Fu Jen Catholic University, Taipei 242062, Taiwan
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Zhao M, Qin Y, Fan Y, Wang X, Yi H, Cui X, Li F, Wang W. Structural Characterization and Glycosaminoglycan Impurities Analysis of Chondroitin Sulfate from Chinese Sturgeon. Polymers (Basel) 2022; 14:polym14235311. [PMID: 36501703 PMCID: PMC9736423 DOI: 10.3390/polym14235311] [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: 10/13/2022] [Revised: 11/11/2022] [Accepted: 11/11/2022] [Indexed: 12/12/2022] Open
Abstract
Chinese sturgeon was an endangered cartilaginous fish. The success of artificial breeding has promoted it to a food fish and it is now beginning to provide a new source of cartilage for the extraction of chondroitin sulfate (CS). However, the structural characteristics of sturgeon CS from different tissues remain to be determined in more detail. In this study, CSs from the head, backbone, and fin cartilage of Chinese sturgeon were individually purified and characterized for the first time. The molecular weights, disaccharide compositions, and oligosaccharide sulfation patterns of these CSs are significantly different. Fin CS (SFCS), rich in GlcUAα1-3GalNAc(4S), has the biggest molecular weight (26.5 kDa). In contrast, head CS (SHCS) has a molecular weight of 21.0 kDa and is rich in GlcUAα1-3GalNAc(6S). Most features of backbone CS (SBCS) are between the former two. Other glycosaminoglycan impurities in these three sturgeon-derived CSs were lower than those in other common commercial CSs. All three CSs have no effect on the activity of thrombin or Factor Xa in the presence of antithrombin III. Hence, Chinese sturgeon cartilage is a potential source for the preparation of CSs with different features for food and pharmaceutical applications.
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Affiliation(s)
- Mei Zhao
- National Glycoengineering Research Center, Shandong Key Laboratory of Carbohydrate Chemistry and Glycobiology and State Key Laboratory of Microbial Technology, Shandong University, 72 Binhai Rd, Qingdao 266237, China
| | - Yong Qin
- National Glycoengineering Research Center, Shandong Key Laboratory of Carbohydrate Chemistry and Glycobiology and State Key Laboratory of Microbial Technology, Shandong University, 72 Binhai Rd, Qingdao 266237, China
| | - Ying Fan
- Qingdao Special Servicemen Recuperation Center of PLA Navy, Qingdao 266071, China
| | - Xu Wang
- National Glycoengineering Research Center, Shandong Key Laboratory of Carbohydrate Chemistry and Glycobiology and State Key Laboratory of Microbial Technology, Shandong University, 72 Binhai Rd, Qingdao 266237, China
| | - Haixin Yi
- National Glycoengineering Research Center, Shandong Key Laboratory of Carbohydrate Chemistry and Glycobiology and State Key Laboratory of Microbial Technology, Shandong University, 72 Binhai Rd, Qingdao 266237, China
| | - Xiaoyu Cui
- National Glycoengineering Research Center, Shandong Key Laboratory of Carbohydrate Chemistry and Glycobiology and State Key Laboratory of Microbial Technology, Shandong University, 72 Binhai Rd, Qingdao 266237, China
| | - Fuchuan Li
- National Glycoengineering Research Center, Shandong Key Laboratory of Carbohydrate Chemistry and Glycobiology and State Key Laboratory of Microbial Technology, Shandong University, 72 Binhai Rd, Qingdao 266237, China
- College of Marine Life Sciences, Ocean University of China, Qingdao 266100, China
- Correspondence: (F.L.); (W.W.); Tel.: +86-532-58631406 (F.L. & W.W.); Fax: +86-532-58631405 (F.L. & W.W.)
| | - Wenshuang Wang
- National Glycoengineering Research Center, Shandong Key Laboratory of Carbohydrate Chemistry and Glycobiology and State Key Laboratory of Microbial Technology, Shandong University, 72 Binhai Rd, Qingdao 266237, China
- Correspondence: (F.L.); (W.W.); Tel.: +86-532-58631406 (F.L. & W.W.); Fax: +86-532-58631405 (F.L. & W.W.)
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Jin H, Li M, Tian F, Yu F, Zhao W. An Overview of Antitumour Activity of Polysaccharides. Molecules 2022; 27:molecules27228083. [PMID: 36432183 PMCID: PMC9692906 DOI: 10.3390/molecules27228083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 11/14/2022] [Accepted: 11/17/2022] [Indexed: 11/22/2022] Open
Abstract
Cancer incidence and mortality are rapidly increasing worldwide; therefore, effective therapies are required in the current scenario of increasing cancer cases. Polysaccharides are a family of natural polymers that hold unique physicochemical and biological properties, and they have become the focus of current antitumour drug research owing to their significant antitumour effects. In addition to the direct antitumour activity of some natural polysaccharides, their structures offer versatility in synthesizing multifunctional nanocomposites, which could be chemically modified to achieve high stability and bioavailability for delivering therapeutics into tumor tissues. This review aims to highlight recent advances in natural polysaccharides and polysaccharide-based nanomedicines for cancer therapy.
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Affiliation(s)
- Hongzhen Jin
- College of Pharmacy, Nankai University, 38 Tongyan Road, Jinnan District, Tianjin 300350, China
| | - Maohua Li
- College of Pharmacy, Nankai University, 38 Tongyan Road, Jinnan District, Tianjin 300350, China
| | - Feng Tian
- College of Pharmacy, Nankai University, 38 Tongyan Road, Jinnan District, Tianjin 300350, China
| | - Fan Yu
- College of Life Sciences, Nankai University, Weijin Road, Nankai District, Tianjin 300350, China
- Correspondence: (F.Y.); (W.Z.)
| | - Wei Zhao
- College of Pharmacy, Nankai University, 38 Tongyan Road, Jinnan District, Tianjin 300350, China
- State Key Laboratory of Medicinal Chemical Biology, Nankai University, 38 Tongyan Road, Jinnan District, Tianjin 300350, China
- Correspondence: (F.Y.); (W.Z.)
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Luan J, Peng X, Lin J, Zhang Y, Tian X, Zhan L, Zhao G. The therapeutic potential of chondroitin sulfate in Aspergillus fumigatus keratitis. Mol Immunol 2022; 147:50-61. [DOI: 10.1016/j.molimm.2022.04.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Revised: 03/29/2022] [Accepted: 04/20/2022] [Indexed: 12/16/2022]
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Matusiewicz M, Marczak K, Kwiecińska B, Kupis J, Zglińska K, Niemiec T, Kosieradzka I. Effect of extracts from eggs of Helix aspersa maxima and Helix aspersa aspersa snails on Caco-2 colon cancer cells. PeerJ 2022; 10:e13217. [PMID: 35433131 PMCID: PMC9012176 DOI: 10.7717/peerj.13217] [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: 11/08/2021] [Accepted: 03/14/2022] [Indexed: 01/12/2023] Open
Abstract
Background Colorectal cancer is the third most commonly diagnosed cancer. Natural compounds, administered together with conventional chemotherapeutic agent(s) and/or radiotherapy, may be a novel element in the combination therapy of this cancer. Considering the anticancer properties of compounds derived from different tissues of various snail species confirmed earlier, the purpose of the present research was to evaluate the effect of extracts from eggs of Helix aspera maxima and Helix aspersa aspersa snails, and fractions of extracts containing particles of different molecular weights on Caco-2 human epithelial colorectal adenocarcinoma cells. Methods The extracts and fractions were analyzed for antioxidant activity, phenols and total carbohydrates using colorimetric methods. Lipid peroxidation products and glutathione in eggs were also examined using these methods. Crude protein and fat in eggs were determined. Molecular weights of egg proteins and glycoproteins were analyzed by sodium dodecyl sulfate-polyacrylamide gel electrophoresis. Astaxanthin, selected vitamins and amino acids in eggs were measured using liquid chromatography methods, and minerals by emission spectroscopy, mass spectrometry or X-ray fluorescence. The action of extracts on the cell viability was determined by the MTT (methylthiazolyldiphenyl-tetrazolium bromide) test, based on the mitochondrial oxidative activity, after 24 and 72 h of treatment. The influence of fractions on the cell viability was assayed after 24 h. The effect of extracts on the percentage of live and dead cells was evaluated by the trypan blue assay, in which live cells exclude trypan blue, while dead cells take up this dye, after 12, 24, 48 and 72 h of treatment. Their influence on the integrity of cell membranes was determined based on the activity of LDH (lactate dehydrogenase), released from damaged cells, after 24 and 72 h of treatment. Then, the effect of extracts on the content of lipid peroxidation products in cells was examined using colorimetric method, after 24 h of treatment. Their influence on types of cell death was determined by flow cytometry, after this time. Results The extracts and their fractions containing molecules <3 kDa decreased the cell viability, after 24 h of treatment. The extracts reduced the percentage of live cells (also after 48 h), increased the degree of cell membrane damage and the amount of lipid peroxidation products, induced apoptosis and reduced necrosis. Conclusions Antioxidants, phenols, lipid peroxidation products, anticancer peptides, restriction of methionine, appropriate ratio of essential amino acids to non-essential amino acids, vitamin D3, Ca, Mg, S, Cu, Mn, Zn, Se and other bioactive compounds comprised in the extracts and their additive and synergistic effects may have influenced Caco-2 cells. Natural extracts or the chemical compounds contained in them might be used in the combination therapy of colorectal cancer, which requires further research.
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Affiliation(s)
- Magdalena Matusiewicz
- Department of Nanobiotechnology, Institute of Biology, Warsaw University of Life Sciences, Warsaw, Poland
| | - Karolina Marczak
- Department of Nanobiotechnology, Institute of Biology, Warsaw University of Life Sciences, Warsaw, Poland
| | - Barbara Kwiecińska
- Department of Nanobiotechnology, Institute of Biology, Warsaw University of Life Sciences, Warsaw, Poland
| | - Julia Kupis
- Department of Nanobiotechnology, Institute of Biology, Warsaw University of Life Sciences, Warsaw, Poland
| | - Klara Zglińska
- Department of Animal Nutrition, Institute of Animal Sciences, Warsaw University of Life Sciences, Warsaw, Poland
| | - Tomasz Niemiec
- Department of Animal Nutrition, Institute of Animal Sciences, Warsaw University of Life Sciences, Warsaw, Poland
| | - Iwona Kosieradzka
- Department of Animal Nutrition, Institute of Animal Sciences, Warsaw University of Life Sciences, Warsaw, Poland
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Li F, Jiao X, Zhao J, Liao X, Wei Y, Li Q. Antitumor mechanisms of an exopolysaccharide from Lactobacillus fermentum on HT-29 cells and HT-29 tumor-bearing mice. Int J Biol Macromol 2022; 209:552-562. [PMID: 35421410 DOI: 10.1016/j.ijbiomac.2022.04.023] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 03/18/2022] [Accepted: 04/04/2022] [Indexed: 11/05/2022]
Abstract
We have obtained an exopolysaccharide (YL-11 EPS) produced by Lactobacillus fermentum YL-11 isolated from fermented milk and confirmed that it can effectively inhibit colon cancer HT-29 cells proliferation in vitro. The aim of this study is to study anti-colon cancer effect in vivo and its possible mechanisms. Animal assays indicated YL-11 EPS treatment significantly suppressed the growth of HT-29 tumor xenograft without exhibiting obvious negative effects on normal cells. Cell experiments demonstrated YL-11 EPS treatment up regulated the ratio of Bax/Bcl-2 and induced the decrease in mitochondrial membrane potential and improved the expression of cleaved caspases-3 and cleaved PARP proteins, and finally induced HT-29 cells apoptosis, suggesting the involvement of mitochondrial pathway. Moreover, YL-11 EPS can block the PI3K/AKT signaling pathway and arrest the cell cycle in G1-phase to exert its anti-colon cancer activity. Overall, YL-11 EPS can be explored as a potential nutraceutical to prevent colorectal cancer.
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Affiliation(s)
- Fei Li
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; National Engineering Research Center for Fruits and Vegetables Processing, Beijing 100083, China
| | - Xu Jiao
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; National Engineering Research Center for Fruits and Vegetables Processing, Beijing 100083, China
| | - Jing Zhao
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; National Engineering Research Center for Fruits and Vegetables Processing, Beijing 100083, China
| | - Xiaojun Liao
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; National Engineering Research Center for Fruits and Vegetables Processing, Beijing 100083, China.
| | - Yunlu Wei
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China.
| | - Quanhong Li
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; National Engineering Research Center for Fruits and Vegetables Processing, Beijing 100083, China.
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12
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Li WW, Liu B, Dong SQ, He SQ, Liu YY, Wei SY, Mou JY, Zhang JX, Liu Z. Bioinformatics and Experimental Analysis of the Prognostic and Predictive Value of the CHPF Gene on Breast Cancer. Front Oncol 2022; 12:856712. [PMID: 35372047 PMCID: PMC8965246 DOI: 10.3389/fonc.2022.856712] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 02/16/2022] [Indexed: 01/08/2023] Open
Abstract
Background Recent studies in the United States have shown that breast cancer accounts for 30% of all new cancer diagnoses in women and has become the leading cause of cancer deaths in women worldwide. Chondroitin Polymerizing Factor (CHPF), is an enzyme involved in chondroitin sulfate (CS) elongation and a novel key molecule in the poor prognosis of many cancers. However, its role in the development and progression of breast cancer remains unclear. Methods The transcript expression of CHPF in the Cancer Genome Atlas-Breast Cancer (TCGA-BRCA), Gene Expression Omnibus (GEO) database was analyzed separately using the limma package of R software, and the relationship between CHPF transcriptional expression and CHPF DNA methylation was investigated in TCGA-BRCA. Kaplan-Meier curves were plotted using the Survival package to further assess the prognostic impact of CHPF DNA methylation/expression. The association between CHPF transcript expression/DNA methylation and cancer immune infiltration and immune markers was investigated using the TIMER and TISIDB databases. We also performed gene ontology (GO) annotation and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis with the clusterProfiler package. Western blotting and RT-PCR were used to verify the protein level and mRNA level of CHPF in breast tissue and cell lines, respectively. Small interfering plasmids and lentiviral plasmids were constructed for transient and stable transfection of breast cancer cell lines MCF-7 and SUM1315, respectively, followed by proliferation-related functional assays, such as CCK8, EDU, clone formation assays; migration and invasion-related functional assays, such as wound healing assay and transwell assays. We also conducted a preliminary study of the mechanism. Results We observed that CHPF was significantly upregulated in breast cancer tissues and correlated with poor prognosis. CHPF gene transcriptional expression and methylation are associated with immune infiltration immune markers. CHPF promotes proliferation, migration, invasion of the breast cancer cell lines MCF-7 and SUM1315, and is significantly enriched in pathways associated with the ECM-receptor interaction and PI3K-AKT pathway. Conclusion CHPF transcriptional expression and DNA methylation correlate with immune infiltration and immune markers. Upregulation of CHPF in breast cancer promotes malignant behavior of cancer cells and is associated with poorer survival in breast cancer, possibly through ECM-receptor interactions and the PI3K-AKT pathway.
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Affiliation(s)
- Wan-Wan Li
- Department of General Surgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China.,Institute of Digestive Diseases, Xuzhou Medical University, Xuzhou, China
| | - Bin Liu
- Department of General Surgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Shu-Qing Dong
- Department of General Surgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China.,Institute of Digestive Diseases, Xuzhou Medical University, Xuzhou, China
| | - Shi-Qing He
- Department of General Surgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China.,Institute of Digestive Diseases, Xuzhou Medical University, Xuzhou, China
| | - Yu-Ying Liu
- Department of General Surgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China.,Institute of Digestive Diseases, Xuzhou Medical University, Xuzhou, China
| | - Si-Yu Wei
- Department of General Surgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China.,Institute of Digestive Diseases, Xuzhou Medical University, Xuzhou, China
| | - Jing-Yi Mou
- Department of General Surgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China.,Institute of Digestive Diseases, Xuzhou Medical University, Xuzhou, China
| | - Jia-Xin Zhang
- Department of General Surgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Zhao Liu
- Department of General Surgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
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13
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Sturgeon Chondroitin Sulfate Restores the Balance of Gut Microbiota in Colorectal Cancer Bearing Mice. Int J Mol Sci 2022; 23:ijms23073723. [PMID: 35409083 PMCID: PMC9040715 DOI: 10.3390/ijms23073723] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 03/01/2022] [Accepted: 03/05/2022] [Indexed: 02/06/2023] Open
Abstract
Chondroitin sulfate (CS) is a well-known bioactive substance with multiple biological functions, which can be extracted from animal cartilage or bone. Sturgeon, the largest soft bone animal with ~20% cartilage content, is a great candidate for CS production. Our recent study confirmed the role of sturgeon chondroitin sulfate (SCS) in reducing colorectal cancer cell proliferation and tumor formation. Here, we further studied the effect of SCS on modulating gut microbiome structure in colorectal cancer bearing mice. In this study, the transplanted tumor mice model was constructed to demonstrate that SCS can effectively halt the growth of transplanted colorectal tumor cells. Next, we showed that SCS significantly altered the gut microbiome, such as the abundance of Lactobacillales, Gastranaerophilales, Ruminiclostridiun_5 and Ruminiclostridiun_6. According to linear discriminant analysis (LDA) and abundance map analysis of the microbial metabolic pathways, the changes in microbial abundance led to an increase of certain metabolites (e.g., Phe, Tyr, and Gly). Fecal metabolome results demonstrated that SCS can significantly reduce the amount of certain amino acids such as Phe, Pro, Ala, Tyr and Leu presented in the feces, suggesting that SCS might inhibit colorectal cancer growth by modulating the gut microbiome and altering the production of certain amino acids. Our results revealed the therapeutic potential of SCS to facilitate treatment of colorectal cancer. This study provides insights into the development of novel food-derived therapies for colorectal cancer.
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Zheng X, Song J, Yu C, Zhou Z, Liu X, Yu J, Xu G, Yang J, He X, Bai X, Luo Y, Bao Y, Li H, Yang L, Xu M, Song N, Su X, Xu J, Ma X, Shi H. Single-cell transcriptomic profiling unravels the adenoma-initiation role of protein tyrosine kinases during colorectal tumorigenesis. Signal Transduct Target Ther 2022; 7:60. [PMID: 35221332 PMCID: PMC8882672 DOI: 10.1038/s41392-022-00881-8] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 12/25/2021] [Accepted: 12/30/2021] [Indexed: 12/29/2022] Open
Abstract
The adenoma-carcinoma sequence is a well-accepted roadmap for the development of sporadic colorectal cancer. However, cellular heterogeneity in aberrant epithelial cells limits our understanding of carcinogenesis in colorectal tissues. Here, we performed a single-cell RNA sequencing survey of 54,788 cells from patient-matched tissue samples, including blood, normal tissue, para-cancer, polyp, and colorectal cancer. At each stage of carcinogenesis, we characterized cell types, transcriptional signatures, and differentially expressed genes of distinct cell populations. The molecular signatures of epithelial cells at normal, benign, and malignant stages were defined at the single-cell scale. Adenoma and carcinoma precursor cell populations were identified and characterized followed by validation with large cohort biopsies. Protein tyrosine kinases (PTKs) BMX and HCK were identified as potential drivers of adenoma initiation. Specific BMX and HCK upregulations were observed in adenoma precursor cell populations from normal and adenoma biopsies. Overexpression of BMX and HCK significantly promoted colorectal epithelial cell proliferation. Importantly, in the organoid culture system, BMX and HCK upregulations resulted in the formation of multilayered polyp-like buds protruding towards the organoid lumen, mimicking the pathological polyp morphology often observed in colorectal cancer. Molecular mechanism analysis revealed that upregulation of BMX or HCK activated the JAK-STAT pathway. In conclusion, our work improved the current knowledge regarding colorectal epithelial evolution during carcinogenesis at the single-cell resolution. These findings may lead to improvements in colorectal cancer diagnosis and treatment.
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15
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Wu R, Li P, Wang Y, Su N, Xiao M, Li X, Shang N. Structural analysis and anti-cancer activity of low-molecular-weight chondroitin sulfate from hybrid sturgeon cartilage. Carbohydr Polym 2022; 275:118700. [PMID: 34742426 DOI: 10.1016/j.carbpol.2021.118700] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 09/15/2021] [Accepted: 09/20/2021] [Indexed: 12/30/2022]
Abstract
Low-molecular-weight chondroitin sulfate (CS) has attracted widespread attention due to its better bioavailability and bioactivity than native CS. In this study, a low-molecular-weight CS (named SCS-F2) was prepared from hybrid sturgeon (Acipenser schrenckii × Huso dauricus) cartilage by enzymatic depolymerization with high in vitro absorption and anti-cancer activity. The structure of SCS-F2 was characterized and the in vivo biodistribution and colorectal cancer prevention effect was investigated. The results revealed that SCS-F2 consisted of 48.84% ΔDi-6S [GlcUAβ1-3GalNAc(6S)], 32.11% ΔDi-4S [GlcUAβ1-3GalNAc(4S)], 16.05% ΔDi-2S,6S [GlcUA(2S)β1-3GalNAc(6S)] and 3.0% ΔDi-0S [GlcUAβ1-3GalNAc]. Animal study showed that the SCS-F2 could be effectively absorbed and delivered to the tumor site and significantly prevented the growth of HT-29 xenograft by inhibiting cell proliferation and inducing apoptosis without showing any negative effect to normal tissues. Therefore, SCS-F2 could be developed as a potential nutraceutical to protect against colorectal cancer.
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Affiliation(s)
- Ruiyun Wu
- Key Laboratory of Functional Dairy, Ministry of Education, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China.
| | - Pinglan Li
- Key Laboratory of Functional Dairy, Ministry of Education, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China.
| | - Yi Wang
- MOE Laboratory for Industrial Biocatalysis, Institute of Biochemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China.
| | - Nan Su
- MOE Laboratory for Industrial Biocatalysis, Institute of Biochemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Mengyuan Xiao
- Key Laboratory of Functional Dairy, Ministry of Education, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Xiaojun Li
- Yangzhou Borui Saccharide Biotech Co., Ltd, Jiangsu 225000, China
| | - Nan Shang
- College of Engineering, China Agricultural University, Beijing 100083, China; Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing 100083, China.
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16
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The Regulatory Network of Sturgeon Chondroitin Sulfate on Colorectal Cancer Inhibition by Transcriptomic and Proteomic Analysis. Int J Mol Sci 2021; 22:ijms22179395. [PMID: 34502301 PMCID: PMC8430666 DOI: 10.3390/ijms22179395] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Revised: 08/16/2021] [Accepted: 08/20/2021] [Indexed: 12/11/2022] Open
Abstract
Chondroitin sulfate (CS) is a food-derived bioactive substance with multiple biological functions, which exists in animal cartilage and/or bone. Sturgeon, a type of cartilaginous fish, is rich in CS. Our recent study demonstrated the effect of sturgeon chondroitin sulfate (SCS) on reducing colorectal cancer cell proliferation and tumor formation. However, the molecular mechanisms of its anticancer activity remain unknown. In this study, the cell proliferation assay and flow cytometric analysis were used to examine the cell viability and apoptosis of colon cancer cell HT-29 cells and normal colonic epithelial cell NCM460 cells. Transcriptomic and proteomic studies were used to identify the main targets of SCS. SCS showed little effect on the genes/proteins expression profile of NCM460 cells but more sensitive to HT-29, in which 188 genes and 10 proteins were differentially expressed after SCS treatment. Enrichment analysis of those genes/proteins showed that the majority of them are involved in DNA replication, cell cycle progression and apoptosis. Quantitative RT-PCR and Western blot were used to determine essential genes/proteins and networks targeted by SCS to exert inhibiting the development of colorectal cancer function. This study provided great insights into developing food-derived novel therapeutics for colorectal cancer treatment.
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Sun T, Gong Q, Wu Y, Shen Z, Zhang Y, Ge S, Duan JS. Dexmedetomidine alleviates cardiomyocyte apoptosis and cardiac dysfunction may be associated with inhibition of RhoA/ROCK pathway in mice with myocardial infarction. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2021; 394:1569-1577. [PMID: 33782744 DOI: 10.1007/s00210-021-02082-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Accepted: 03/16/2021] [Indexed: 11/25/2022]
Abstract
The global incidence of myocardial infarction has been consistently high, and it is one of the main causes of poor cardiovascular prognosis. Dexmedetomidine (DEX) is a highly selective α2 receptor agonist. Recent studies have found that DEX has a protective effect on myocardial infarction, but its specific mechanism is still unclear. In this experiment, we permanently ligated the anterior descending branch of mice to explore the protective mechanism of DEX against myocardial infarction. Our study found that intraperitoneal injection of DEX for 7 days after myocardial infarction in mice can increase the reduction of ejection fraction (EF) and fractional shortening (FS) caused by myocardial infarction and significantly reduce the release of serum markers. The results of myocardial HE and Sirius red staining suggest that the changes in the myocardial structure of mice after using DEX are reduced. Immunohistochemistry shows that DEX reduces the expression of ROCK1 protein after myocardial infarction. TUNEL staining and the protein expression levels of cleaved caspase-3 and cleaved caspase-9 were used to detect cell apoptosis and results make clear that DEX can reduce the apoptosis caused by myocardial infarction. Western blot experiments showed that DEX can reduce the expression levels of ROCK1 and ROCK2 (Rho-kinase). At the same time, it was observed that DEX improved the Bcl-2/Bax ratio. The above results indicate that DEX reduces cardiomyocyte apoptosis and improves cardiac function likely through inhibiting the RhoA/ROCK signaling pathway. This study may provide new insights into the protective effect of DEX after myocardial infarction in mice.
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Affiliation(s)
- Tao Sun
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Anhui Medical University, No. 218, Jixi Road, Shushan District, Hefei, 230032, Anhui, China
| | - Qian Gong
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Anhui Medical University, No. 218, Jixi Road, Shushan District, Hefei, 230032, Anhui, China
| | - Ying Wu
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Anhui Medical University, No. 218, Jixi Road, Shushan District, Hefei, 230032, Anhui, China
| | - Zhiming Shen
- Yangzhou University Medical College, Yangzhou, 225001, Jiangsu, China
| | - Yan Zhang
- Department of Pharmacology, Anhui Medical University, Hefei, 230032, Anhui, China
| | - Shenglin Ge
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Anhui Medical University, No. 218, Jixi Road, Shushan District, Hefei, 230032, Anhui, China.
| | - Jing-Si Duan
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Anhui Medical University, No. 218, Jixi Road, Shushan District, Hefei, 230032, Anhui, China.
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18
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Deng Y, Li S, Wang M, Chen X, Tian L, Wang L, Yang W, Chen L, He F, Yin W. Flavonoid-rich extracts from okra flowers exert antitumor activity in colorectal cancer through induction of mitochondrial dysfunction-associated apoptosis, senescence and autophagy. Food Funct 2020; 11:10448-10466. [PMID: 33241810 DOI: 10.1039/d0fo02081h] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Okra flowers contain a higher content of total flavonoids than most other flowers; however little research has been conducted on their potential benefits, including antitumor activity. In this study, we extracted and purified flavonoids from okra flower (AFE), and aimed to evaluate the effect of AFE and its underlying mechanism on colorectal cancer (CRC) cell growth in vitro and in vivo. Here, we identify that AFE is a safe, natural antioxidant and exerts significant antitumor efficacy on the inhibition of CRC cell proliferation and metastasis as well as tumour growth in vivo. We further reveal that AFE inhibits CRC cell proliferation by inducing mitochondrial dysfunction, which results from the activation of p53 and induction of apoptosis and senescence, and inhibits autophagic degradation. Furthermore, AFE inhibited migration and invasion of CRC cells by regulating the balance of MMP2/TIMP2 and MMP9 expression levels. Of note, administration of AFE as a preventive agent achieves a more effective antitumor effect than the therapeutic agent in a xenograft mouse model. Our results reveal, for the first time, that AFE is a safe, natural antioxidant with significant antitumor efficacy, which has great potential in the application for CRC prevention and treatment.
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Affiliation(s)
- Yuanle Deng
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, 610041, Sichuan, China.
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