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Ji R, Wang Y, Pan D, Han J, Wang Y, Zheng S, Zhao W, Li X, Han C, Zhang L. NUCB2 inhibition antagonizes osteosarcoma progression and promotes anti-tumor immunity through inactivating NUCKS1/CXCL8 axis. Cancer Lett 2024; 591:216893. [PMID: 38636892 DOI: 10.1016/j.canlet.2024.216893] [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: 11/30/2023] [Revised: 04/08/2024] [Accepted: 04/11/2024] [Indexed: 04/20/2024]
Abstract
The oncogenic properties of Nucleobindin2 (NUCB2) have been observed in various cancer types. Nevertheless, the precise understanding of the biological functions and regulatory mechanisms of NUCB2 in osteosarcoma remains limited. This investigation reported that NUCB2 was significantly increased upon glucose deprivation-induced metabolic stress. Elevated NUCB2 suppressed glucose deprivation-induced cell death and reactive oxygen species (ROS) increase. Depletion of NUCB2 resulted in a reduction in osteosarcoma cell proliferation as well as metastatic potential in vitro and in vivo. Mechanically, NUCB2 ablation suppressed C-X-C Motif Chemokine Ligand 8 (CXCL8) expression which then reduced programmed cell death 1 ligand 1 (PD-L1) expression and stimulated anti-tumor immunity mediated through cytotoxic T cells. Importantly, a combination of NUCB2 depletion with anti-PD-L1 treatment improved anti-tumor T-cell immunity in vivo. Moreover, we further demonstrated that NUCB2 interacted with NUCKS1 to inhibit its degradation, which is responsible for the transcriptional regulation of CXCL8 expression. Altogether, the outcome emphasizes the function of NUCB2 in osteosarcoma and indicates that NUCB2 elevates osteosarcoma progression and immunosuppressive microenvironment through the NUCKS1/CXCL8 pathway.
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Affiliation(s)
- Renchen Ji
- The Second Affiliated Hospital, Dalian Medical University, Dalian, Liaoning 116044, China
| | - Yuan Wang
- The Second Affiliated Hospital, Dalian Medical University, Dalian, Liaoning 116044, China
| | - Deyue Pan
- The Second Affiliated Hospital, Dalian Medical University, Dalian, Liaoning 116044, China
| | - Jian Han
- Dalian NO.3 People's Hospital, Department of Orthopedics, Dalian, Liaoning 116044, China
| | - Yiping Wang
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian, Liaoning 116044, China
| | - Shuo Zheng
- The Second Affiliated Hospital, Dalian Medical University, Dalian, Liaoning 116044, China
| | - Wenzhi Zhao
- The Second Affiliated Hospital, Dalian Medical University, Dalian, Liaoning 116044, China.
| | - Xiaojie Li
- College of Stomatology Dalian Medical University, Dalian 116044, China.
| | - Chuanchun Han
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian, Liaoning 116044, China.
| | - Lu Zhang
- The Second Affiliated Hospital, Dalian Medical University, Dalian, Liaoning 116044, China.
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2
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Guan X, Ning J, Fu W, Wang Y, Zhang J, Ding S. Helicobacter pylori with trx1 high expression promotes gastric diseases via upregulating the IL23A/NF-κB/IL8 pathway. Helicobacter 2024; 29:e13072. [PMID: 38686467 DOI: 10.1111/hel.13072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 03/19/2024] [Accepted: 03/28/2024] [Indexed: 05/02/2024]
Abstract
BACKGROUND Helicobacter pylori infection is one of the main causes of gastric cancer. thioredoxin-1 (Trx1) and arginase (RocF) expressed by H. pylori were found to be closely related to its pathogenicity. However, whether Trx1 and RocF can be used in clinical screening of highly pathogenic H. pylori and the pathogenesis of trx1 high expressing H. pylori remain still unknown. MATERIALS AND METHODS We investigated the expression level of H. pylori trx1 and H. pylori rocF in human gastric antrum tissues using reverse transcription and quantitative real-time PCR (RT-qPCR) and clarified the clinical application value of trx1 and rocF for screening highly pathogenic H. pylori. The pathogenic mechanism of Trx1 were further explored by RNA-seq of GES-1 cells co-cultured with trx1 high or low expressing H. pylori. Differentially expressed genes and signaling pathways were validated by RT-qPCR, Enzyme-linked immunosorbent assay (ELISA), western blot, immunohistochemistry and immunofluorescence. We also assessed the adherence of trx1 high and low expressing H. pylori to GES-1 cells. RESULTS We found that H. pylori trx1 and H. pylori rocF were more significantly expressed in the gastric cancer and peptic ulcer group than that in the gastritis group and the parallel diagnosis of H. pylori trx1 and H. pylori rocF had high sensitivity. The trx1 high expressing H. pylori had stronger adhesion ability to GES-1 cells and upregulated the interleukin (IL) 23A/nuclear factor κappaB (NF-κB)/IL17A, IL6, IL8 pathway. CONCLUSIONS H. pylori trx1 and H. pylori rocF can be used in clinical screening of highly pathogenic H. pylori and predicting the outcome of H. pylori infection. The trx1 high expressing H. pylori has stronger adhesion capacity and promotes the development of gastric diseases by upregulating the activation of NF-κB signaling pathway.
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Affiliation(s)
- Xin Guan
- Beijing Key Laboratory for Helicobacter pylori Infection and Upper Gastrointestinal Diseases, Department of Gastroenterology, Peking University Third Hospital, Beijing, China
| | - Jing Ning
- Beijing Key Laboratory for Helicobacter pylori Infection and Upper Gastrointestinal Diseases, Department of Gastroenterology, Peking University Third Hospital, Beijing, China
| | - Weiwei Fu
- Beijing Key Laboratory for Helicobacter pylori Infection and Upper Gastrointestinal Diseases, Department of Gastroenterology, Peking University Third Hospital, Beijing, China
| | - Ye Wang
- Beijing Key Laboratory for Helicobacter pylori Infection and Upper Gastrointestinal Diseases, Department of Gastroenterology, Peking University Third Hospital, Beijing, China
| | - Jing Zhang
- Beijing Key Laboratory for Helicobacter pylori Infection and Upper Gastrointestinal Diseases, Department of Gastroenterology, Peking University Third Hospital, Beijing, China
| | - Shigang Ding
- Beijing Key Laboratory for Helicobacter pylori Infection and Upper Gastrointestinal Diseases, Department of Gastroenterology, Peking University Third Hospital, Beijing, China
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Wu L, Xue Q, Xia X. High expression of TRIP13 is associated with tumor progression in H. pylori infection induced gastric cancer. Mutat Res 2024; 828:111854. [PMID: 38492425 DOI: 10.1016/j.mrfmmm.2024.111854] [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: 10/09/2023] [Revised: 03/05/2024] [Accepted: 03/06/2024] [Indexed: 03/18/2024]
Abstract
BACKGROUND/OBJECTIVE H. pylori is a recognized bacterial carcinogen in the world to cause gastric cancer (GC). However, the molecular mechanism of H. pylori infection-induced GC is not completely clear. Thus, there is an urgent need to reveal the precise mechanisms regulating cancer development due to H. pylori infection. METHODS GEO microarray databases and TCGA databases were extracted for the analysis of different expression genes (DEGs). Then, Kaplan-Meier Plotter was used for prognostic analysis. Functional enrichment analysis of TRIP13 was performed by metascape database and TIMER database. Specific role of TRIP13 in GC with H. pylori infection was confirmed by CCK8, cell cycle analysis and WB. RESULTS A total 10 DEGs were substantially elevated in GC and H. pylori+ tissues and might be associated with H. pylori infection in GC and only the highly expressed TRIP13 was statistically associated with poor prognosis in GC patients. Meanwhile, TRIP13 were upregulated in both CagA-transfected epithelial cells and GC cells. And TRIP13 deficiency inhibited cell proliferation and arrested the cell cycle at the G1 phase. CONCLUSION Our study suggested that high expression of TRIP13 can promote the proliferation, cell cycle in GC cells, which could be used as a biomarker for H. pylori infection GC.
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Affiliation(s)
- Longxiang Wu
- Department of Gastrointestinal Surgery, Affiliated Tumor Hospital of Nantong University, Nantong Tumor Hospital, Nantong, Jiangsu 226361, China
| | - Qiu Xue
- Department of Gastrointestinal Surgery, Affiliated Tumor Hospital of Nantong University, Nantong Tumor Hospital, Nantong, Jiangsu 226361, China
| | - Xiaochun Xia
- Department of Radiation Oncology, Affiliated Tumor Hospital of Nantong University, Nantong Tumor Hospital, Nantong, Jiangsu 226361, China.
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4
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Ullah A, Zhao J, Li J, Singla RK, Shen B. Involvement of CXC chemokines (CXCL1-CXCL17) in gastric cancer: Prognosis and therapeutic molecules. Life Sci 2024; 336:122277. [PMID: 37995936 DOI: 10.1016/j.lfs.2023.122277] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 11/15/2023] [Indexed: 11/25/2023]
Abstract
Gastric cancer (GC) is the fifth-most prevalent and second-most deadly cancer worldwide. Due to the late onset of symptoms, GC is frequently treated at a mature stage. In order to improve the diagnostic and clinical decision-making processes, it is necessary to establish more specific and sensitive indicators valuable in the early detection of the disease whenever a cancer is asymptomatic. In this work, we gathered information about CXC chemokines and GC by using scientific search engines including Google Scholar, PubMed, SciFinder, and Web of Science. Researchers believe that GC chemokines, small proteins, class CXC chemokines, and chemokine receptors promote GC inflammation, initiation, and progression by facilitating angiogenesis, tumor transformation, invasion, survival, metastatic spread, host response safeguards, and inter-cell interaction. With our absolute best professionalism, the role of CXC chemokines and their respective receptors in GC diagnosis and prognosis has not been fully explained. This review article updates the general characteristics of CXC chemokines, their unique receptors, their function in the pathological process of GC, and their potential application as possible indicators for GC. Although there have only recently been a few studies focusing on the therapeutic efficacy of CXC chemokine inhibitors in GC, growing experimental evidence points to the inhibition of CXC chemokines as a promising targeted therapy. Therefore, further translational studies are warranted to determine whether specific antagonists or antibodies designed to target CXC chemokines alone or in combination with chemotherapy are useful for diagnosing advanced GC.
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Affiliation(s)
- Amin Ullah
- Department of Urology and Institutes for Systems Genetics, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Jing Zhao
- Department of Urology and Institutes for Systems Genetics, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Jiakun Li
- Department of Urology and Institutes for Systems Genetics, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Rajeev K Singla
- Department of Urology and Institutes for Systems Genetics, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Bairong Shen
- Department of Urology and Institutes for Systems Genetics, West China Hospital, Sichuan University, Chengdu 610041, China.
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Wang J, Liu D, Xie Y. GHRL as a prognostic biomarker correlated with immune infiltrates and progression of precancerous lesions in gastric cancer. Front Oncol 2023; 13:1142017. [PMID: 37469414 PMCID: PMC10353738 DOI: 10.3389/fonc.2023.1142017] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 06/12/2023] [Indexed: 07/21/2023] Open
Abstract
Objective Ghrelin is a protein that regulate appetite and energy balance in the human body, which is encoded by the ghrelin prepropeptide gene (GHRL). GHRL is linked with carcinogenesis and immune regulation. However, the correlation of GHRL to prognosis and tumor-infiltrating lymphocytes in gastric cancer (GC) remains unclear. Methods In this study, we assessed the transcriptional expression, prognosis, and different clinicopathological features about GHRL and the correlation between GHRL and tumor infiltration immune cells in GC patients based on the data published in the following databases: TIMER, GEPIA, GEO, STRING, UALCAN, TISIDB, and Kaplan-Meier Plotter. Furthermore, R software analysis for GC Correa' cascade was also provided. Finally, GHRL expression in GC tissues was assayed using quantitative real-time polymerase chain reaction and immunohistochemistry. Results We found that GHRL expression in GC samples was lower than in normal samples and verified by quantitative PCR (qPCR) and immunohistochemistry. However, sample type, cancer stage, and worse survival were correlated to high GHRL expression. We also found that the expression of GHRL in dysplasia was significantly lower than that in CNAG and in GC. High GHRL expression was connected with immunomodulators, chemokines, and infiltrating levels of B cells, CD8+ T cells, CD4+ T cells, macrophages, neutrophils, and dendritic cells in GC. Conclusions GHRL is a prognostic biomarker for GC patients, and it is correlated with progression of precancerous lesions in GC. It might lead to poor prognosis by regulating tumor immune microenvironment. Studies are important to explore therapeutic targeting GHRL in the future.
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Fu X, Wang Q, Du H, Hao H. CXCL8 and the peritoneal metastasis of ovarian and gastric cancer. Front Immunol 2023; 14:1159061. [PMID: 37377954 PMCID: PMC10291199 DOI: 10.3389/fimmu.2023.1159061] [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: 02/05/2023] [Accepted: 05/30/2023] [Indexed: 06/29/2023] Open
Abstract
CXCL8 is the most representative chemokine produced autocrine or paracrine by tumor cells, endothelial cells and lymphocytes. It can play a key role in normal tissues and tumors by activating PI3K-Akt, PLC, JAK-STAT, and other signaling pathways after combining with CXCR1/2. The incidence of peritoneal metastasis in ovarian and gastric cancer is extremely high. The structure of the peritoneum and various peritoneal-related cells supports the peritoneal metastasis of cancers, which readily produces a poor prognosis, low 5-year survival rate, and the death of patients. Studies show that CXCL8 is excessively secreted in a variety of cancers. Thus, this paper will further elaborate on the mechanism of CXCL8 and the peritoneal metastasis of ovarian and gastric cancer to provide a theoretical basis for the proposal of new methods for the prevention, diagnosis, and treatment of cancer peritoneal metastasis.
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7
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Liu S, Deng Z, Zhu J, Ma Z, Tuo B, Li T, Liu X. Gastric immune homeostasis imbalance: An important factor in the development of gastric mucosal diseases. Biomed Pharmacother 2023; 161:114338. [PMID: 36905807 DOI: 10.1016/j.biopha.2023.114338] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 01/18/2023] [Accepted: 01/27/2023] [Indexed: 03/11/2023] Open
Abstract
The gastric mucosal immune system is a unique immune organ independent of systemic immunity that not only maintains nutrient absorption but also plays a role in resisting the external environment. Gastric mucosal immune disorder leads to a series of gastric mucosal diseases, including autoimmune gastritis (AIG)-related diseases, Helicobacter pylori (H. pylori)-induced diseases, and various types of gastric cancer (GC). Therefore, understanding the role of gastric mucosal immune homeostasis in gastric mucosal protection and the relationship between mucosal immunity and gastric mucosal diseases is very important. This review focuses on the protective effect of gastric mucosal immune homeostasis on the gastric mucosa, as well as multiple gastric mucosal diseases caused by gastric immune disorders. We hope to offer new prospects for the prevention and treatment of gastric mucosal diseases.
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Affiliation(s)
- Shuhui Liu
- Department of Gastroenterology, Digestive Disease Hospital, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou Province, China
| | - Zilin Deng
- Department of Gastroenterology, Digestive Disease Hospital, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou Province, China
| | - Jiaxing Zhu
- Department of Gastroenterology, Digestive Disease Hospital, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou Province, China
| | - Zhiyuan Ma
- Department of Gastroenterology, Digestive Disease Hospital, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou Province, China
| | - Biguang Tuo
- Department of Gastroenterology, Digestive Disease Hospital, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou Province, China
| | - Taolang Li
- Department of General Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, China.
| | - Xuemei Liu
- Department of Gastroenterology, Digestive Disease Hospital, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou Province, China.
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8
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Zhang Y, Yao C, Ju Z, Jiao D, Hu D, Qi L, Liu S, Wu X, Zhao C. Krüppel-like factors in tumors: Key regulators and therapeutic avenues. Front Oncol 2023; 13:1080720. [PMID: 36761967 PMCID: PMC9905823 DOI: 10.3389/fonc.2023.1080720] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 01/09/2023] [Indexed: 01/26/2023] Open
Abstract
Krüppel-like factors (KLFs) are a group of DNA-binding transcriptional regulators with multiple essential functions in various cellular processes, including proliferation, migration, inflammation, and angiogenesis. The aberrant expression of KLFs is often found in tumor tissues and is essential for tumor development. At the molecular level, KLFs regulate multiple signaling pathways and mediate crosstalk among them. Some KLFs may also be molecular switches for specific biological signals, driving their transition from tumor suppressors to promoters. At the histological level, the abnormal expression of KLFs is closely associated with tumor cell stemness, proliferation, apoptosis, and alterations in the tumor microenvironment. Notably, the role of each KLF in tumors varies according to tumor type and different stages of tumor development rather than being invariant. In this review, we focus on the advances in the molecular biology of KLFs, particularly the regulations of several classical signaling pathways by these factors, and the critical role of KLFs in tumor development. We also highlight their strong potential as molecular targets in tumor therapy and suggest potential directions for clinical translational research.
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Affiliation(s)
- Yuchen Zhang
- School of Acupuncture-moxibustion and Tuina, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Chongjie Yao
- School of Acupuncture-moxibustion and Tuina, Shanghai University of Traditional Chinese Medicine, Shanghai, China,Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Ziyong Ju
- School of Acupuncture-moxibustion and Tuina, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Danli Jiao
- School of Acupuncture-moxibustion and Tuina, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Dan Hu
- School of Acupuncture-moxibustion and Tuina, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Li Qi
- School of Acupuncture-moxibustion and Tuina, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Shimin Liu
- School of Acupuncture-moxibustion and Tuina, Shanghai University of Traditional Chinese Medicine, Shanghai, China,Shanghai Research Institute of Acupuncture and Meridian, Shanghai, China
| | - Xueqing Wu
- Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China,*Correspondence: Chen Zhao, ; Xueqing Wu,
| | - Chen Zhao
- School of Acupuncture-moxibustion and Tuina, Shanghai University of Traditional Chinese Medicine, Shanghai, China,*Correspondence: Chen Zhao, ; Xueqing Wu,
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9
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Yang M, Huang X, Shen F, Yi J, Meng Y, Chen Y. Lef1 is transcriptionally activated by Klf4 and suppresses hyperoxia-induced alveolar epithelial cell injury. Exp Lung Res 2022; 48:213-223. [PMID: 35950640 DOI: 10.1080/01902148.2022.2108945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
PURPOSE Bronchopulmonary dysplasia (BPD) is a long-term respiratory condition. More than a quarter of extremely premature newborns are harmed by BPD. At present, there are no apparent effective drugs or treatments for the condition. In this study, we aimed to investigate the functional role and mechanism of lymphoid enhancer-binding factor 1 (Lef1) in BPD in vitro. MATERIALS AND METHODS Blood samples from BPD patients and healthy volunteers were gathered, and an in vitro model of BPD was developed in alveolar epithelial cells (AECs) MLE-12 induced by hyperoxia. Then expression of krüppel-like factor 4 (KLF4/Klf4) and LEF1/Lef1 were evaluated. After Lef1 overexpressing plasmid and the vector were transfected into hyperoxia-induced MLE-12 cells, cell proliferation assays were carried out. Cell apoptosis was investigated by a flow cytometry assay, and apoptosis related proteins Bcl-2, cleaved-caspase 3 and 9 were analyzed by a western blot assay. The binding between Klf4 and Lef1 promoter predicted on the JASPAR website was verified using luciferase and ChIP assays. For further study of the mechanism of Klf4 and Lef1 in BPD, gain-of-function experiments were performed. RESULTS The mRNA levels of KLF4/Klf4 and LEF1/Lef1 were diminished in clinical BPD serum samples and hyperoxia-induced MLE-12 cells. Overexpression of Lef1 stimulated AEC proliferation and suppressed AEC apoptosis induced by hyperoxia. Mechanically, Klf4 bound to Lef1's promoter region and aids transcription. Moreover, the results of gain-of-function experiments supported that Klf4 could impede AEC damage induced by hyperoxia via stimulating Lef1. CONCLUSION Klf4 and Lef1 expression levels were declined in hyperoxia-induced AECs, and Lef1 could be transcriptionally activated by Klf4 and protect against hyperoxia-induced AEC injury in BPD. As a result, Lef1 might become a prospective therapeutic target for BPD.
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Affiliation(s)
- Min Yang
- Department of Respiratory, Hunan Children's Hospital, Changsha, China
| | | | - Fang Shen
- Research Institute of Children, Hunan Children's Hospital, Changsha, China
| | - Juanjuan Yi
- Department of Neonate, Hunan Children's Hospital, Changsha, China
| | - Yanni Meng
- Department of Respiratory, Hunan Children's Hospital, Changsha, China
| | - Yanping Chen
- Department of Respiratory, Hunan Children's Hospital, Changsha, China
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10
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Deng R, Zheng H, Cai H, Li M, Shi Y, Ding S. Effects of helicobacter pylori on tumor microenvironment and immunotherapy responses. Front Immunol 2022; 13:923477. [PMID: 35967444 PMCID: PMC9371381 DOI: 10.3389/fimmu.2022.923477] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Accepted: 07/04/2022] [Indexed: 12/13/2022] Open
Abstract
Helicobacter pylori is closely associated with gastric cancer. During persistent infection, Helicobacter pylori can form a microenvironment in gastric mucosa which facilitates the survival and colony formation of Helicobacter pylori. Tumor stromal cells are involved in this process, including tumor-associated macrophages, mesenchymal stem cells, cancer-associated fibroblasts, and myeloid-derived suppressor cells, and so on. The immune checkpoints are also regulated by Helicobacter pylori infection. Helicobacter pylori virulence factors can also act as immunogens or adjuvants to elicit or enhance immune responses, indicating their potential applications in vaccine development and tumor immunotherapy. This review highlights the effects of Helicobacter pylori on the immune microenvironment and its potential roles in tumor immunotherapy responses.
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Affiliation(s)
- Ruiyi Deng
- Peking University Third Hospital, Research Center of Clinical Epidemiology, Beijing, China
- Peking University Health Science Center, Peking University First Medical School, Beijing, China
| | - Huiling Zheng
- Peking University Third Hospital, Department of Gastroenterology, Beijing, China
| | - Hongzhen Cai
- Peking University Third Hospital, Research Center of Clinical Epidemiology, Beijing, China
- Peking University Health Science Center, Peking University First Medical School, Beijing, China
| | - Man Li
- Peking University Third Hospital, Research Center of Clinical Epidemiology, Beijing, China
- Peking University Health Science Center, Peking University Third Medical School, Beijing, China
| | - Yanyan Shi
- Peking University Third Hospital, Research Center of Clinical Epidemiology, Beijing, China
- *Correspondence: Yanyan Shi, ; Shigang Ding,
| | - Shigang Ding
- Peking University Third Hospital, Department of Gastroenterology, Beijing, China
- *Correspondence: Yanyan Shi, ; Shigang Ding,
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11
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Li Z, Zhang W, Bai J, Li J, Li H. Emerging Role of Helicobacter pylori in the Immune Evasion Mechanism of Gastric Cancer: An Insight Into Tumor Microenvironment-Pathogen Interaction. Front Oncol 2022; 12:862462. [PMID: 35795038 PMCID: PMC9252590 DOI: 10.3389/fonc.2022.862462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 03/25/2022] [Indexed: 11/19/2022] Open
Abstract
Helicobacter pylori (H. pylori) infection is the strongest causative factor of gastric cancer. Growing evidence suggests that the complex crosstalk of H. pylori and the tumor microenvironment (TME) exerts a profound influence on gastric cancer progression. Hence, there is emerging interest to in-depth comprehension of the mechanisms of interplay between H. pylori and the TME. This review discusses the regulatory mechanisms underlying the crosstalk between H. pylori infection and immune and stromal cells, including tumor-associated macrophages (TAMs), neutrophils, dendritic cells, myeloid-derived suppressor cells (MDSCs), natural killer (NK) cells, B and T cells, cancer associated fibroblasts (CAFs), and mesenchymal stem cells (MSCs), within the TME. Such knowledge will deepen the understanding about the roles of H. pylori in the immune evasion mechanism in gastric cancer and contribute to the development of more effective treatment regimens against H. pylori-induced gastric cancer.
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Affiliation(s)
- Zhifang Li
- Shanxi Medical University, Taiyuan, China
- The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Wenqing Zhang
- The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Jinyang Bai
- Shanxi Traditional Chinese Medicine Hospital, Taiyuan, China
| | - Jing Li
- The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Hong Li
- The Second Hospital of Shanxi Medical University, Taiyuan, China
- *Correspondence: Hong Li,
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12
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Chen Z, Jiang Z, Meng L, Wang Y, Lin M, Wei Z, Han W, Ying S, Xu A. SAMHD1, positively regulated by KLF4, suppresses the proliferation of gastric cancer cells through MAPK p38 signaling pathway. Cell Cycle 2022; 21:2065-2078. [PMID: 35670736 DOI: 10.1080/15384101.2022.2085356] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
SAMHD1 was reported to be related with the development of tumors, while its function in gastric cancer (GC) has not been elucidated yet. Here, we investigated the role and mechanism of SAMHD1 in regulating the proliferation of GC, as well as the mechanism of its expression regulation. Our results revealed that SAMHD1 was downregulated in GC tissues and cell lines, which was correlated with tumor size, depth of invasion and TNM stage. Overexpression of SAMHD1 inhibited the proliferation, clone formation, DNA synthesis and cell cycle progression, while knockdown of SAMHD1 promoted the proliferation of GC cells in vitro and vivo. Meanwhile, SAMHD1 inhibited the activation of MAPK p38 signaling pathway. Moreover, SB203580, as a MAPK p38 inhibitor, could reverse the proliferation and activation of MAPK p38 signaling pathway caused by knockdown of SAMHD1 in GC cells. Additionally, transcription factor Krüppel-like factor 4 (KLF4) bound to the core promoter of SAMHD1, increasing its transcriptional expression in GC cells. In conclusion, SAMHD1 suppressed the proliferation of GC through negatively regulating the activation of MAPK p38 signaling pathway and was upregulated by KLF4 in GC cells.
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Affiliation(s)
- Zhangming Chen
- Department of General Surgery, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China.,Department of General Surgery, Fourth Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Zhe Jiang
- Department of General Surgery, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China.,Department of Immunology, School of Basic Medical Sciences, Anhui Medical University, Hefei, Anhui, China
| | - Lei Meng
- Department of General Surgery, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Ye Wang
- Department of General Surgery, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Minggui Lin
- Department of Immunology, School of Basic Medical Sciences, Anhui Medical University, Hefei, Anhui, China
| | - Zhijian Wei
- Department of General Surgery, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Wenxiu Han
- Department of General Surgery, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Songcheng Ying
- Department of Immunology, School of Basic Medical Sciences, Anhui Medical University, Hefei, Anhui, China
| | - Aman Xu
- Department of General Surgery, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China.,Department of General Surgery, Fourth Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
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