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Xuan SH, Hua ML, Xiang Z, He XL, Huang L, Jiang C, Dong P, Wu J. Roles of cancer stem cells in gastrointestinal cancers. World J Stem Cells 2023; 15:209-220. [PMID: 37181004 PMCID: PMC10173810 DOI: 10.4252/wjsc.v15.i4.209] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 02/25/2023] [Accepted: 03/27/2023] [Indexed: 04/26/2023] Open
Abstract
Cancer stem cells (CSCs) are the main cause of tumor growth, invasion, metastasis and recurrence. Recently, CSCs have been extensively studied to identify CSC-specific surface markers as well as signaling pathways that play key roles in CSCs self-renewal. The involvement of CSCs in the pathogenesis of gastrointestinal (GI) cancers also highlights these cells as a priority target for therapy. The diagnosis, prognosis and treatment of GI cancer have always been a focus of attention. Therefore, the potential application of CSCs in GI cancers is receiving increasing attention. This review summarizes the role of CSCs in GI cancers, focusing on esophageal cancer, gastric cancer, liver cancer, colorectal cancer, and pancreatic cancer. In addition, we propose CSCs as potential targets and therapeutic strategies for the effective treatment of GI cancers, which may provide better guidance for clinical treatment of GI cancers.
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Affiliation(s)
- Shi-Hai Xuan
- Department of Laboratory Medicine, The People’s Hospital of Dongtai City, Dongtai 224299, Jiangsu Province, China
| | - Meng-Lu Hua
- School of Medicine, Zhejiang University, Hangzhou 310009, Zhejiang Province, China
| | - Ze Xiang
- School of Medicine, Zhejiang University, Hangzhou 310009, Zhejiang Province, China
| | - Xiang-Lin He
- School of Medicine, Zhejiang University, Hangzhou 310009, Zhejiang Province, China
| | - Lan Huang
- Department of Clinical Laboratory, Suzhou Municipal Hospital, Suzhou 215008, Jiangsu Province, China
| | - Chun Jiang
- Department of Clinical Laboratory, Suzhou Municipal Hospital, Suzhou 215008, Jiangsu Province, China
| | - Peng Dong
- Hangzhou Institute of Cardiovascular Diseases, Hangzhou Normal University, Hangzhou 310015, Zhejiang Province, China
| | - Jian Wu
- Department of Clinical Laboratory, Suzhou Municipal Hospital, Suzhou 215008, Jiangsu Province, China
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Kim KJ, Xuan SH, Park SN. Licoricidin, an isoflavonoid isolated from Glycyrrhiza uralensis Fisher, prevents UVA-induced photoaging of human dermal fibroblasts. Int J Cosmet Sci 2016; 39:133-140. [PMID: 27502959 DOI: 10.1111/ics.12357] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Accepted: 08/02/2016] [Indexed: 12/14/2022]
Abstract
OBJECTIVE Licoricidin is an isoflavonoid isolated from Glycyrrhiza uralensis Fisher. In this study, we investigated the effects of licoricidin on photoaging of UVA-irradiated human dermal fibroblasts (HDFs). METHODS In vitro reactive oxygen species (ROS) scavenging activity, cellular protective effect and inhibition of elastase activity was determined by Fe3+ -EDTA/H2 O2 systems, photohaemolysis and elastase activity assay, respectively. Anti-oxidative capacity of the compound was evaluated by fluorescent ELISA and 2', 7'-dichlorofluorescin-diacetate (DCF-DA) assay. The expression of protein and phosphorylation was examined using Western blot. RESULTS The ROS scavenging activity (OSC50 ) of licoricidin was 2.77 μM. It was 3.1-fold higher than that of L-ascorbic acid. Its protective effects were confirmed in a study of 1 O2 -induced cellular damage to human erythrocytes. The τ50 value of 10 μM of licoricidin was 71.0 min; this was markedly higher than that obtained with α-tocopherol (37.0 min). The elastase inhibitory activity of licoricidin (IC50 of 61.2 μM) was 2.1-fold more potent than that of oleanolic acid. Licoricidin markedly reduced the UVA-induced intracellular ROS in a concentration-dependent manner. Western blot revealed that licoricidin attenuated the UVA-dependent induction of MMP-1 protein. Mechanistically, this appeared to be due to licoricidin-dependent inhibition of mitogen-activated protein kinases (MAPK) phosphorylation, which resulted in decreased c-Jun activation and reduced c-Jun and c-Fos expression. CONCLUSION Licoricidin blocks UVA-induced photoaging via ROS scavenging. This activity converges to limit the activity of MMP-1. These data suggest that licoricidin may be considered as an active ingredient in new topically applied anti-ageing formulations.
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Affiliation(s)
- K J Kim
- Department of Fine Chemistry, Cosmetic R&D Center, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul, 01811, Korea
| | - S H Xuan
- Department of Fine Chemistry, Cosmetic R&D Center, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul, 01811, Korea
| | - S N Park
- Department of Fine Chemistry, Cosmetic R&D Center, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul, 01811, Korea
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Xuan SH, Wu LP, Zhou YG, Xiao MB. Detection of clarithromycin-resistant Helicobacter pylori in clinical specimens by molecular methods: A review. J Glob Antimicrob Resist 2016; 4:35-41. [PMID: 27436390 DOI: 10.1016/j.jgar.2016.01.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2015] [Revised: 01/06/2016] [Accepted: 01/08/2016] [Indexed: 12/17/2022] Open
Abstract
Various molecular methods have been developed to rapidly detect clarithromycin (CLR) resistance in Helicobacter pylori isolates in clinical specimens. All of these assays for detecting CLR resistance in H. pylori are based on detection of mutations in the 23S rRNA gene. In this article, we summarise current knowledge regarding the detection of H. pylori CLR resistance in clinical specimens by molecular tests. The available data showed that restriction fragment length polymorphism (RFLP), 3'-mismatch PCR, DNA sequencing, the PCR line probe assay (PCR-LiPA) and fluorescence in situ hybridisation assay (FISH) are able to detect CLR-resistant H. pylori in clinical specimens with excellent specificity and sensitivity. However, several factors limit their clinical application, including fastidious, time-consuming preparation and low-throughput as well as carrying a risk of contamination. Furthermore, as an invasive method, FISH is not suitable for children or the elderly. Among the molecular methods, one that is most promising for the future is real-time PCR probe hybridisation technology using fluorescence resonance energy transfer (FRET) probes, which can rapidly detect CLR resistance with high sensitivity and specificity in biopsies and stool specimens, even though mixed infections are present in clinical specimens. Moreover, due to the advantages that this method is simple, rapid and economical, real-time PCR is technically feasible for clinical application in small- and medium-sized hospitals in developing countries. Second, with high sensitivity, specificity and throughput, DNA chips will also be a valuable tool for detecting resistant H. pylori isolates from cultures and clinical specimens.
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Affiliation(s)
- Shi-Hai Xuan
- Department of Clinical Laboratory, The Affiliated Dongtai Hospital of Nantong University, Dongtai 224200, China
| | - Li-Pei Wu
- Department of Clinical Laboratory, The Affiliated Dongtai Hospital of Nantong University, Dongtai 224200, China
| | - Yu-Gui Zhou
- Department of Clinical Laboratory, The Affiliated Dongtai Hospital of Nantong University, Dongtai 224200, China
| | - Ming-Bing Xiao
- Department of Gastroenterology, Affiliated Hospital of Nantong University, Nantong 226001, China.
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Xuan SH, Zhou YG, Pan JQ, Zhu W, Xu P. Overexpression of integrin αv in the human nasopharyngeal carcinoma associated with metastasis and progression. Cancer Biomark 2014; 13:323-8. [PMID: 24440971 DOI: 10.3233/cbm-130361] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Integrins are cell-surface adhesion molecules, regulate normal cellular interactions, and which are consisting of α and β subunits and facilitate signal transduction in a bidirectional manner. Tumor cells have been found to express a wide variety of integrins, overexpression of integrin αv has been detected in a growing number of human malignancy types, However, the reports obout expression of integrin αv in nasopharyngeal carcinoma (NPC) are very rare. OBJECTIVE This study aims to detect the expression of integrin αv in NPC, and to evaluate the correlation between integrin αv expression and clinicopathological factors. METHODS Real-time polymerase chain reaction (real-time PCR) assay and immunohistochemical staining were performed to detect the expression of integrin αv in NPC tissue samples. The correlation between the integrin αv expression and clinicopathological factors was evaluated. RESULTS In NPC tissues, the expression levels of integrin αv mRNA was significantly higher than those in the nasopharyngeal inflammation tissues (P< 0.05), and the expression level were significantly correlated with T, N and clinical stage (all P < 0.05). Moreover, the expression rates of integrin αv protein in NPC tissues was 76.92%, significantly higher than that of nasopharyngeal inflammation tissues (6.25%, P< 0.05). We also observed that the protein expression of integrin αv was significantly related to T, N and clinical stage (all P< 0.05). CONCLUSIONS All these findings suggest that overexpression of integrin αv is closely associated with metastasis and progression of NPC. Therefore, we can speculate that integrin αv could be effective prognostic markers in the future for individualized treatment of patients with NPC.
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Affiliation(s)
- Shi-Hai Xuan
- Department of Clinical Laboratory, Affiliated Dongtai Hospital of Nantong University, Dongtai, Jiangsu, China
| | - Yu-Gui Zhou
- Department of Clinical Laboratory, Affiliated Dongtai Hospital of Nantong University, Dongtai, Jiangsu, China
| | - Ji-Qun Pan
- Department of Oncology, Affiliated Dongtai Hospital of Nantong University, Dongtai, Jiangsu, China
| | - Wei Zhu
- Department of Otolaryngology-Head and Neck Surgery, Affiliated Dongtai Hospital of Nantong University, Dongtai, Jiangsu, China
| | - Ping Xu
- Department of Oncology, Dongtai Hospital of Traditional Chinese Medicine, Dongtai, Jiangsu, China
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Abstract
Helicobacter pylori (H. pylori) has been identified as the most important risk factor for chronic active gastritis and peptic ulcer disease. Resistance to antibiotics is increasing in H. pylori and is the main reason for failure of H. pylori eradication therapy. It is now widely accepted that resistance to fluoroquinolones (levofloxacin) is related with mutations of H. pylori gyrA gene. Molecular mechanisms of and detection methods for H. pylori resistance to levofloxacin have become the focus of current research. Therefore, study on H. pylori resistance to antibiotics is of great significance for eradication therapy of H. pylori infection.
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Gong XL, Yang F, Xuan SH, Zong LH, Zhu W, Jiang WQ. Boundary effect in electrorheological fluids. Phys Rev E Stat Nonlin Soft Matter Phys 2011; 84:061505. [PMID: 22304095 DOI: 10.1103/physreve.84.061505] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2011] [Indexed: 05/31/2023]
Abstract
The effect of the boundary friction coefficient on the rheological properties of the electrorheological (ER) fluids in quasistatic and dynamic states is investigated by computer simulation. The relation between the shear stress and the boundary friction coefficient in quasistatic and dynamic states is discussed qualitatively and quantitatively, and the trend matches the previously reported experimental results well. The flow curves of ER fluids, under different friction coefficients, are calculated, and it is found that the friction coefficient affects the flow curves. In two dimensions, the transitions in structure corresponding to the shear stress variations are presented to understand the mechanism of ER fluids.
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Affiliation(s)
- X L Gong
- Department of Modern Mechanics, CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei 230027, People's Republic of China.
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Yang F, Gong XL, Xuan SH, Jiang WQ, Jiang CX, Zhang Z. Simulation study on the trembling shear behavior of eletrorheological fluid. Phys Rev E Stat Nonlin Soft Matter Phys 2011; 84:011504. [PMID: 21867175 DOI: 10.1103/physreve.84.011504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2010] [Revised: 05/12/2011] [Indexed: 05/31/2023]
Abstract
The trembling shear behavior of electrorheological (ER) fluids has been investigated by using a computer simulation method, and a shear-slide boundary model is proposed to understand this phenomenon. A thiourea-doped Ba-Ti-O ER fluid which shows a trembling shear behavior was first prepared and then systematically studied by both theoretical and experimental methods. The shear curves of ER fluids in the dynamic state were simulated with shear rates from 0.1 to 1000 s(-1) under different electric fields. The simulation results of the flow curves match the experimental results very well. The trembling shear curves are divided into four regions and each region can be explained by the proposed model.
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Affiliation(s)
- F Yang
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China, Hefei 230027, People's Republic of China
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Xuan SH, Zhou YG, Shao B, Cui YL, Li J, Yin HB, Song XP, Cong H, Jing FX, Jin QH, Wang HM, Zhou J. Enzymic colorimetry-based DNA chip: a rapid and accurate assay for detecting mutations for clarithromycin resistance in the 23S rRNA gene of Helicobacter pylori. J Med Microbiol 2009; 58:1443-1448. [PMID: 19628643 DOI: 10.1099/jmm.0.010785-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Macrolide drugs, such as clarithromycin (CAM), are a key component of many combination therapies used to eradicate Helicobacter pylori. However, resistance to CAM is increasing in H. pylori and is becoming a serious problem in H. pylori eradication therapy. CAM resistance in H. pylori is mostly due to point mutations (A2142G/C, A2143G) in the peptidyltransferase-encoding region of the 23S rRNA gene. In this study an enzymic colorimetry-based DNA chip was developed to analyse single-nucleotide polymorphisms of the 23S rRNA gene to determine the prevalence of mutations in CAM-related resistance in H. pylori-positive patients. The results of the colorimetric DNA chip were confirmed by direct DNA sequencing. In 63 samples, the incidence of the A2143G mutation was 17.46 % (11/63). The results of the colorimetric DNA chip were concordant with DNA sequencing in 96.83 % of results (61/63). The colorimetric DNA chip could detect wild-type and mutant signals at every site, even at a DNA concentration of 1.53×102 copies μl−1. Thus, the colorimetric DNA chip is a reliable assay for rapid and accurate detection of mutations in the 23S rRNA gene of H. pylori that lead to CAM-related resistance, directly from gastric tissues.
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Affiliation(s)
- Shi-Hai Xuan
- Department of Clinical Laboratory, The People's Hospital of Dongtai City, Dongtai 224200, PR China
| | - Yu-Gui Zhou
- Department of Clinical Laboratory, The People's Hospital of Dongtai City, Dongtai 224200, PR China
| | - Bo Shao
- Department of Clinical Laboratory, The People's Hospital of Dongtai City, Dongtai 224200, PR China
| | - Ya-Lin Cui
- Department of Clinical Laboratory, The People's Hospital of Dongtai City, Dongtai 224200, PR China
| | - Jian Li
- Department of Clinical Laboratory, The People's Hospital of Dongtai City, Dongtai 224200, PR China
| | - Hong-Bo Yin
- Department of Clinical Laboratory, The People's Hospital of Dongtai City, Dongtai 224200, PR China
| | - Xiao-Ping Song
- Department of Clinical Laboratory, The People's Hospital of Dongtai City, Dongtai 224200, PR China
| | - Hui Cong
- Center of Laboratory Medicine, Affiliated Hospital of Nantong University, Nantong 226001, PR China
| | - Feng-Xiang Jing
- Biochip Laboratory, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, PR China
| | - Qing-Hui Jin
- Biochip Laboratory, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, PR China
| | - Hui-Min Wang
- Center of Laboratory Medicine, Affiliated Hospital of Nantong University, Nantong 226001, PR China
| | - Jie Zhou
- Department of Clinical Laboratory, The People's Hospital of Dongtai City, Dongtai 224200, PR China
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Xuan SH, Zhou YG, Shao B, Cui YL, Li J, Yin HB, Song XP, Cong H, Jing FX, Jin QH, Wang HM, Zhou J. Enzymic colorimetry-based DNA chip: a rapid and accurate assay for detecting mutations for clarithromycin resistance in the 23S rRNA gene of Helicobacter pylori. J Med Microbiol 2009. [PMID: 19628643 DOI: 10.1099/jmm.0.010785-0.epub] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Macrolide drugs, such as clarithromycin (CAM), are a key component of many combination therapies used to eradicate Helicobacter pylori. However, resistance to CAM is increasing in H. pylori and is becoming a serious problem in H. pylori eradication therapy. CAM resistance in H. pylori is mostly due to point mutations (A2142G/C, A2143G) in the peptidyltransferase-encoding region of the 23S rRNA gene. In this study an enzymic colorimetry-based DNA chip was developed to analyse single-nucleotide polymorphisms of the 23S rRNA gene to determine the prevalence of mutations in CAM-related resistance in H. pylori-positive patients. The results of the colorimetric DNA chip were confirmed by direct DNA sequencing. In 63 samples, the incidence of the A2143G mutation was 17.46 % (11/63). The results of the colorimetric DNA chip were concordant with DNA sequencing in 96.83 % of results (61/63). The colorimetric DNA chip could detect wild-type and mutant signals at every site, even at a DNA concentration of 1.53 x 10(2) copies microl(-1). Thus, the colorimetric DNA chip is a reliable assay for rapid and accurate detection of mutations in the 23S rRNA gene of H. pylori that lead to CAM-related resistance, directly from gastric tissues.
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Affiliation(s)
- Shi-Hai Xuan
- Department of Clinical Laboratory, The People's Hospital of Dongtai City, Dongtai 224200, PR China
| | - Yu-Gui Zhou
- Department of Clinical Laboratory, The People's Hospital of Dongtai City, Dongtai 224200, PR China
| | - Bo Shao
- Department of Clinical Laboratory, The People's Hospital of Dongtai City, Dongtai 224200, PR China
| | - Ya-Lin Cui
- Department of Clinical Laboratory, The People's Hospital of Dongtai City, Dongtai 224200, PR China
| | - Jian Li
- Department of Clinical Laboratory, The People's Hospital of Dongtai City, Dongtai 224200, PR China
| | - Hong-Bo Yin
- Department of Clinical Laboratory, The People's Hospital of Dongtai City, Dongtai 224200, PR China
| | - Xiao-Ping Song
- Department of Clinical Laboratory, The People's Hospital of Dongtai City, Dongtai 224200, PR China
| | - Hui Cong
- Center of Laboratory Medicine, Affiliated Hospital of Nantong University, Nantong 226001, PR China
| | - Feng-Xiang Jing
- Biochip Laboratory, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, PR China
| | - Qing-Hui Jin
- Biochip Laboratory, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, PR China
| | - Hui-Min Wang
- Center of Laboratory Medicine, Affiliated Hospital of Nantong University, Nantong 226001, PR China
| | - Jie Zhou
- Department of Clinical Laboratory, The People's Hospital of Dongtai City, Dongtai 224200, PR China
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Abstract
Helicobacter pylori (H pylori) infection is the main cause of chronic active gastritis and peptic ulcer disease, and studies indicated eradication of H pylori could promote the healing of peptic ulcer. H pylori resistance to clarithromycin, which shows an increasing tendency year by year, is related with mutations of H pylori 23S rRNA domain V. Molecular mechanism and detection technology of H pylori resistance to clarithromycin have become the focus of current researches. Investigations on H pylori resistance to antibiotics are of great significance for the diagnosis and therapy of H pylori infection.
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