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Wei H, Li W, Zeng L, Ding N, Li K, Yu H, Jiang F, Yin H, Xia Y, Deng C, Cai N, Chen X, Gu L, Chen H, Zhang F, He Y, Li J, Zhang C. OLFM4 promotes the progression of intestinal metaplasia through activation of the MYH9/GSK3β/β-catenin pathway. Mol Cancer 2024; 23:124. [PMID: 38849840 PMCID: PMC11157765 DOI: 10.1186/s12943-024-02016-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Accepted: 05/04/2024] [Indexed: 06/09/2024] Open
Abstract
BACKGROUND Intestinal metaplasia (IM) is classified into complete intestinal metaplasia (CIM) and incomplete intestinal metaplasia (IIM). Patients diagnosed with IIM face an elevated susceptibility to the development of gastric cancer, underscoring the critical need for early screening measures. In addition to the complexities associated with diagnosis, the exact mechanisms driving the progression of gastric cancer in IIM patients remain poorly understood. OLFM4 is overexpressed in several types of tumors, including colorectal, gastric, pancreatic, and ovarian cancers, and its expression has been associated with tumor progression. METHODS In this study, we used pathological sections from two clinical centers, biopsies of IM tissues, precancerous lesions of gastric cancer (PLGC) cell models, animal models, and organoids to explore the role of OLFM4 in IIM. RESULTS Our results show that OLFM4 expression is highly increased in IIM, with superior diagnostic accuracy of IIM when compared to CDX2 and MUC2. OLFM4, along with MYH9, was overexpressed in IM organoids and PLGC animal models. Furthermore, OLFM4, in combination with Myosin heavy chain 9 (MYH9), accelerated the ubiquitination of GSK3β and resulted in increased β-catenin levels through the Wnt signaling pathway, promoting the proliferation and invasion abilities of PLGC cells. CONCLUSIONS OLFM4 represents a novel biomarker for IIM and could be utilized as an important auxiliary means to delimit the key population for early gastric cancer screening. Finally, our study identifies cell signaling pathways involved in the progression of IM.
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Affiliation(s)
- Hongfa Wei
- Department of General Surgery, The First Affiliated Hospital of Shantou University Medical College, Jinping, Shantou, Guangdong, 515041, P.R. China
- Department of Gastrointestinal Surgery, Digestive Diseases Center, The Seventh Affiliated Hospital, Sun Yat-Sen University, Shenzhen, 518107, China
| | - Wenchao Li
- Department of Gastrointestinal Surgery, Digestive Diseases Center, The Seventh Affiliated Hospital, Sun Yat-Sen University, Shenzhen, 518107, China
- The Department of Thyroid and Breast Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Leli Zeng
- Scientific Research Center, The Biobank, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, 518107, Guangdong, P.R. China
| | - Ni Ding
- Scientific Research Center, The Biobank, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, 518107, Guangdong, P.R. China
- The Department of Thyroid and Breast Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Kuan Li
- Department of Gastrointestinal Surgery, Digestive Diseases Center, The Seventh Affiliated Hospital, Sun Yat-Sen University, Shenzhen, 518107, China
| | - Hong Yu
- Department of Gastrointestinal Surgery, Digestive Diseases Center, The Seventh Affiliated Hospital, Sun Yat-Sen University, Shenzhen, 518107, China
| | - Fei Jiang
- Department of Gastrointestinal Surgery, Digestive Diseases Center, The Seventh Affiliated Hospital, Sun Yat-Sen University, Shenzhen, 518107, China
| | - Haofan Yin
- Department of Gastrointestinal Surgery, Digestive Diseases Center, The Seventh Affiliated Hospital, Sun Yat-Sen University, Shenzhen, 518107, China
- Department of Laboratory Medicine, Shenzhen People's Hospital, (The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, Guangdong, China
| | - Yu Xia
- Scientific Research Center, The Biobank, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, 518107, Guangdong, P.R. China
| | - Cuncan Deng
- Department of Gastrointestinal Surgery, Digestive Diseases Center, The Seventh Affiliated Hospital, Sun Yat-Sen University, Shenzhen, 518107, China
| | - Nan Cai
- Department of Gastrointestinal Surgery, Digestive Diseases Center, The Seventh Affiliated Hospital, Sun Yat-Sen University, Shenzhen, 518107, China
| | - Xiancong Chen
- Department of Gastrointestinal Surgery, Digestive Diseases Center, The Seventh Affiliated Hospital, Sun Yat-Sen University, Shenzhen, 518107, China
| | - Liang Gu
- Department of Gastrointestinal Surgery, Digestive Diseases Center, The Seventh Affiliated Hospital, Sun Yat-Sen University, Shenzhen, 518107, China
| | - Huanjie Chen
- Department of General Surgery, The First Affiliated Hospital of Shantou University Medical College, Jinping, Shantou, Guangdong, 515041, P.R. China
| | - Feiran Zhang
- Department of General Surgery, The First Affiliated Hospital of Shantou University Medical College, Jinping, Shantou, Guangdong, 515041, P.R. China.
| | - Yulong He
- Department of Gastrointestinal Surgery, Digestive Diseases Center, The Seventh Affiliated Hospital, Sun Yat-Sen University, Shenzhen, 518107, China.
| | - Jia Li
- Department of Gastrointestinal Surgery, Digestive Diseases Center, The Seventh Affiliated Hospital, Sun Yat-Sen University, Shenzhen, 518107, China.
- Scientific Research Center, The Biobank, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, 518107, Guangdong, P.R. China.
| | - Changhua Zhang
- Department of Gastrointestinal Surgery, Digestive Diseases Center, The Seventh Affiliated Hospital, Sun Yat-Sen University, Shenzhen, 518107, China.
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Chen S, Wang X, Liu Z, Wang J, Guo Y, Wang Q, Huang H, Li Y, Yu C, Xu C. Olfactomedin 4 deletion exacerbates nonalcoholic fatty liver disease through P62-dependent mitophagy in mice. Metabolism 2023; 148:155679. [PMID: 37611821 DOI: 10.1016/j.metabol.2023.155679] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Revised: 07/25/2023] [Accepted: 08/17/2023] [Indexed: 08/25/2023]
Abstract
BACKGROUND & AIMS Olfactomedin 4 (OLFM4) is a glycoprotein that is related to obesity and insulin resistance. This study aims to investigate the role and mechanisms of OLFM4 in nonalcoholic fatty liver disease (NAFLD). APPROACH & RESULTS OLFM4 expression levels were significantly increased in liver samples from NAFLD patients and in cellular and mouse models of NAFLD. Cell lines deficient in or overexpressing OLFM4 and Olfm4-/- mice were established to study its role in NAFLD. OLFM4 deficiency significantly aggravated diet-induced hepatic steatosis and inflammation, while re-expression of OLFM4 ameliorated diet-induced hepatic steatosis and inflammation in mice. Mechanistically, OLFM4 deficiency disrupted mitochondrial structure and decreased mitophagy in hepatocytes, thereby aggravating hepatic lipogenesis, inflammation, and insulin resistance. Moreover, OLFM4 directly interacted with P62, and OLFM4 deficiency decreased mitophagy in both cellular and mouse models of NAFLD through a P62-dependent mechanism. We also show that blocking the P62-ZZ-domain using XRK3F2 prevented diet-induced NAFLD in Olfm4-/- mice. CONCLUSION OLFM4 is significantly upregulated in NAFLD, and OLFM4 deletion exacerbates NAFLD through P62-dependent mitophagy.
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Affiliation(s)
- Shenghui Chen
- Department of Gastroenterology, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China; Department of Gastroenterology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - Xinyu Wang
- Department of Gastroenterology, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China; Department of Gastroenterology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - Zhening Liu
- Department of Gastroenterology, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - Jinghua Wang
- Department of Gastroenterology, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - Yanjun Guo
- Department of Gastroenterology, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - Qinqiu Wang
- Department of Gastroenterology, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - Hangkai Huang
- Department of Gastroenterology, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - Youming Li
- Department of Gastroenterology, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - Chaohui Yu
- Department of Gastroenterology, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - Chengfu Xu
- Department of Gastroenterology, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China.
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Li A, Li Y, Li Y, Zhang M, Zhang H, Chen F. Identification and validation of key genes associated with pathogenesis and prognosis of gastric cancer. PeerJ 2023; 11:e16243. [PMID: 37868053 PMCID: PMC10586292 DOI: 10.7717/peerj.16243] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 09/14/2023] [Indexed: 10/24/2023] Open
Abstract
Background Gastric cancer (GC) is the fourth leading cause of cancer-related death worldwide. However, the precise mechanisms and specific biomarkers of GC have not been fully elucidated. We therefore sought to identify and validate the genes associated with GC. Methods RNA sequencing was performed on gastric tissue specimens from 10 cases each of non-atrophic gastritis (NAG), intestinal metaplasia (IM), and GC. Validation of gene expression was conducted through immunohistochemistry (IHC) staining. The Kaplan-Meier Plotter database was utilized to screen genes associated with prognosis, while protein-protein interaction analysis was conducted to identify hub genes. Results In GC-IM, the differentially expressed genes (DEGs) were predominantly enriched in pathways related to ECM-receptor interaction, focal adhesion, PI3K-Akt pathway, and pathways in cancer. Conversely, in IM-NAG, the DEGs were primarily enriched in pathways associated with fat digestion and absorption, pancreatic secretion, and retinol metabolism. IHC staining revealed elevated expression levels of KLK7 and KLK10 in GC. Specifically, KLK7 expression was found to be correlated with differentiation (P = 0.025) and depth of invasion (P = 0.007) in GC, while both KLK7 and KLK10 were associated with the overall survival (P < 0.05). Furthermore, a total of ten hub genes from DEGs in GC-NAG (COL6A2, COL1A1, COL4A1, COL1A2, SPARC, COL4A2, FN1, PCOLCE, SERPINH1, LAMB1) and five hub genes in IM-NAG (SI, DPP4, CLCA1, MEP1A, OLFM4) were demonstrated to have a significant correlation with the prognosis of GC. Conclusions The present study successfully identified and validated crucial genes associated with GC, providing valuable insights into the underlying mechanisms of this disease. The findings of this study have the potential to inform clinical practice.
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Affiliation(s)
- Ai Li
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Yan Li
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Yueyue Li
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Mingming Zhang
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Hong Zhang
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Feixue Chen
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
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Zeng X, Yang M, Ye T, Feng J, Xu X, Yang H, Wang X, Bao L, Li R, Xue B, Zang J, Huang Y. Mitochondrial GRIM-19 loss in parietal cells promotes spasmolytic polypeptide-expressing metaplasia through NLR family pyrin domain-containing 3 (NLRP3)-mediated IL-33 activation via a reactive oxygen species (ROS) -NRF2- Heme oxygenase-1(HO-1)-NF-кB axis. Free Radic Biol Med 2023; 202:46-61. [PMID: 36990300 DOI: 10.1016/j.freeradbiomed.2023.03.024] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 03/05/2023] [Accepted: 03/24/2023] [Indexed: 03/31/2023]
Abstract
Spasmolytic polypeptide-expressing metaplasia (SPEM), as a pre-neoplastic precursor of intestinal metaplasia (IM), plays critical roles in the development of chronic atrophic gastritis (CAG) and gastric cancer (GC). However, the pathogenetic targets responsible for the SPEM pathogenesis remain poorly understood. Gene associated with retinoid-IFN-induced mortality 19 (GRIM-19), an essential subunit of the mitochondrial respiratory chain complex I, was progressively lost along with malignant transformation of human CAG, little is known about the potential link between GRIM-19 loss and CAG pathogenesis. Here, we show that lower GRIM-19 is associated with higher NF-кB RelA/p65 and NLR family pyrin domain-containing 3 (NLRP3) levels in CAG lesions. Functionally, GRIM-19 deficiency fails to drive direct differentiation of human GES-1 cells into IM or SPEM-like cell lineages in vitro, whereas parietal cells (PCs)-specific GRIM-19 knockout disturbs gastric glandular differentiation and promotes spontaneous gastritis and SPEM pathogenesis without intestinal characteristics in mice. Mechanistically, GRIM-19 loss causes chronic mucosal injury and aberrant NRF2 (Nuclear factor erythroid 2-related factor 2)- HO-1 (Heme oxygenase-1) activation via reactive oxygen species (ROS)-mediated oxidative stress, resulting in aberrant NF-кB activation by inducing p65 nuclear translocation via an IKK/IкB partner, while NRF2-HO-1 activation contributes to GRIM-19 loss-driven NF-кB activation via a positive feedback NRF2-HO-1 loop. Furthermore, GRIM-19 loss did not cause obvious PCs loss but triggers NLRP3 inflammasome activation in PCs via a ROS-NRF2-HO-1-NF-кB axis, leading to NLRP3-dependent IL-33 expression, a key mediator for SPEM formation. Moreover, intraperitoneal administration of NLRP3 inhibitor MCC950 drastically attenuates GRIM-19 loss-driven gastritis and SPEM in vivo. Our study suggests that mitochondrial GRIM-19 maybe a potential pathogenetic target for the SPEM pathogenesis, and its deficiency promotes SPEM through NLRP3/IL-33 pathway via a ROS-NRF2-HO-1-NF-кB axis. This finding not only provides a causal link between GRIM-19 loss and SPEM pathogenesis, but offers potential therapeutic strategies for the early prevention of intestinal GC.
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Affiliation(s)
- Xin Zeng
- Institute of Paediatrics, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Infection and Immunity, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China; Department of Laboratory Medicine, The Third People's Hospital of Chengdu, Chengdu, 610031, China
| | - Meihua Yang
- Departments of Neurology, Washington University School of Medicine and Barnes-Jewish Hospital, Saint Louis, 63110, MO, USA
| | - Tingbo Ye
- Department of Laboratory Medicine, The Third People's Hospital of Chengdu, Chengdu, 610031, China
| | - Jinmei Feng
- Institute of Paediatrics, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Infection and Immunity, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China
| | - Xiaohui Xu
- Institute of Paediatrics, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Infection and Immunity, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China
| | - Huaan Yang
- Department of Urologic Surgery, Yubei District People's Hospital, Chongqing, 401120, China
| | - Xin Wang
- Ministry of Education Key Laboratory of Molecular Biology for Infectious Diseases, Chongqing Medical University, Chongqing, 40016, China
| | - Liming Bao
- Department of Pathology and Laboratory Medicine, Weill Cornell Medical College of Cornell University, New York, NY, 10065, USA
| | - Rui Li
- Department of Laboratory Medicine, The Third People's Hospital of Chengdu, Chengdu, 610031, China
| | - Bingqian Xue
- Department of Laboratory Medicine, The Third People's Hospital of Chengdu, Chengdu, 610031, China
| | - Jinbao Zang
- Institute of Paediatrics, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Infection and Immunity, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China
| | - Yi Huang
- Institute of Paediatrics, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Infection and Immunity, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China.
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Barpanda A, Halder A, Dhote A, Parihari S, Kantharia C, Srivastava S. Colon Adenocarcinoma Quantitative Proteomics Reveals Dysregulation in Key Cancer Signaling Pathways and a Candidate Protein Marker Panel. OMICS : A JOURNAL OF INTEGRATIVE BIOLOGY 2023; 27:75-85. [PMID: 36730729 DOI: 10.1089/omi.2022.0169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Colorectal cancer (CRC) is reportedly the second leading cause of cancer death worldwide. By the end of the decade, there will likely be more than one million fatalities worldwide from this cancer, with an estimated 2.2 million additional cases. We need new ways of thinking about cancer research. One approach is to deploy systems science using quantitative proteomics to obtain postgenomic and functional insights into cancer. The present study compares the tissue proteome of CRC (n = 10) with the matched peritumoral controls (n = 10) in samples obtained from the Indian subcontinent. When compared with the controls, a list of 22 substantially altered protein candidates was identified, which were associated with the growth, survival, and metastasis of the tumor. A list of the unique peptides from top significant proteins, including olfactomedin-4, alanyl aminopeptidase, and grancalcin was further validated using a parallel reaction monitoring-based targeted proteomics approach. In addition, biological pathway analysis showed perturbation in key biological processes, including dysregulation in purine metabolism, MYC targets in cancer, DNA repair, and replication, and leukocyte transendothelial migration, among others. The protein panel reported herein is also shown to be dysregulated in CRC and warrants further research toward understanding pathobiology, diagnostics, and therapeutics development in CRC.
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Affiliation(s)
- Abhilash Barpanda
- Proteomics Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, Maharashtra, India.,Center for Research in Nanotechnology and Science, Indian Institute of Technology Bombay, Mumbai, Maharashtra, India
| | - Ankit Halder
- Center for Research in Nanotechnology and Science, Indian Institute of Technology Bombay, Mumbai, Maharashtra, India
| | - Ayushi Dhote
- Saint Francis de Sales College, Nagpur, Maharashtra, India
| | - Shashwati Parihari
- Center for Research in Nanotechnology and Science, Indian Institute of Technology Bombay, Mumbai, Maharashtra, India
| | - Chetan Kantharia
- Department of Surgical Gastroenterology, Seth G.S. Medical College and KEM Hospital, Mumbai, Maharashtra, India
| | - Sanjeeva Srivastava
- Proteomics Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, Maharashtra, India.,Center for Research in Nanotechnology and Science, Indian Institute of Technology Bombay, Mumbai, Maharashtra, India
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Pang L, Yan X, Su D, Wu X, Jiang H. Feasibility of olfactomedin 4 as a molecular biomarker for early diagnosis of gastric neoplasia after intestinal metaplasia. Scand J Gastroenterol 2023; 58:133-141. [PMID: 36124708 DOI: 10.1080/00365521.2022.2116992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
OBJECTIVES This study discusses whether olfactomedin 4 (OLFM4) could be used as a sensitive and specific biomarker in the early diagnosis of gastric cancer (GC) after gastric intestinal metaplasia (GIM). METHODS An integrative analysis combining data derived from the Gene Expression Omnibus (GEO) and cBioPortal databases was performed to investigate the potential molecular biomarker. Immunohistochemistry and quantitative real-time polymerase chain reactions were used to measure the expression of messenger ribonucleic acid (mRNA) and protein by OLFM4. In combination with the gastroscopic findings and the OLFM4 expression in GIM-GC, a predictive model was established. The receiver operator characteristic curve (ROC) was applied to assess the diagnostic value of the model for GIM-GC. RESULTS According to the GEO and cBioPortal databases, OLFM4 was identified as a key gene in the diagnosis of GIM-GC. Higher protein expression of OLFM4 was found in GIM and GIM-GC compared with chronic superficial gastritis (GS) (p < 0.05). The positive expression rate of OLFM4 in paracancerous tissue (GCP) was higher than in GIM (p > 0.05). There was no significant difference between GIM-GC and GCP (p > 0.05). The mRNA expression of OLFM4 was similar to the protein expression, and the positive expression rate was higher in early GIM-GC than in GIM (p < 0.05). CONCLUSION Olfactomedin 4 could be used as a biomarker for the early diagnosis of GIM-GC, and the logistic predictive model could be an effective tool for increasing the early diagnostic rate.
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Affiliation(s)
- Lixing Pang
- Department of Gastroenterology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Xin Yan
- Department of Endocrinology, Nanning Second People's Hospital, Nanning, China
| | - Dongxing Su
- Department of Gastroenterology, Nanning Second People's Hospital, Nanning, China
| | - Xianbin Wu
- Department of Gastroenterology, Nanning Second People's Hospital, Nanning, China
| | - Haixing Jiang
- Department of Gastroenterology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
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Lin Z, Yang S, Zhou Y, Hou Z, Li L, Meng M, Ge C, Zeng B, Lai J, Gao H, Zhao Y, Xie Y, He S, Tang W, Li R, Tan J, Wang W. OLFM4 depletion sensitizes gallbladder cancer cells to cisplatin through the ARL6IP1/caspase-3 axis. Transl Oncol 2022; 16:101331. [PMID: 34974280 PMCID: PMC8728528 DOI: 10.1016/j.tranon.2021.101331] [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: 12/02/2021] [Accepted: 12/24/2021] [Indexed: 11/25/2022] Open
Abstract
OLFM4 is involved in development of gallbladder cancer. Depletion of OLFM4 sensitizes gallbladder cancer cells to cisplatin by regulating apoptosis. Low expression of OLFM4 in GBC patients indicates longer survival.
Background Gallbladder cancer (GBC) is a highly lethal malignancy that carries an extremely poor prognosis due to its chemoresistant nature. Cisplatin (CDDP) is a first-line chemotherapeutic for GBC; however, patients experienced no benefit when treated with CDDP alone. The underlying mechanisms of CDDP resistance in GBC remain largely unknown. Methods Agilent mRNA microarray analysis was performed between paired GBC and paracarcinoma to explore differentially expressed genes that might underlie drug resistance. Gene Set Enrichment Analysis (GSEA) was employed to identify key genes mediating CDDP resistance in GBC, and immunohistochemistry was performed to validate protein expression and test correlations with clinicopathological features. In vitro and in vivo functional assays were performed to investigate the proteins’ roles in CDDP resistance. Results Olfactomedin 4 (OLFM4) was differentially expressed between GBC and paracarcinoma and had the highest rank metric score in the GSEA. OLFM4 expression was increasingly upregulated from chronic cholecystitis to GBC in clinical tissue samples, and OLFM4 depletion decreased GBC cell proliferation and invasion. Interestingly, downregulation of OLFM4 reduced ARL6IP1 (antiapoptotic factor) expression and sensitized GBC cells to CDDP both in vitro and in vivo. The evidence indicated that CDDP could significantly increase Bax and Bad expression and activate caspase-3 cascade in OLFM4-depleted GBC cells through ARL6IP1. Clinically, lower OLFM4 expression was associated with good prognosis of GBC patients. Conclusions Our results suggest that OLFM4 is an essential gene that contributes to GBC chemoresistance and could serve as a prognostic biomarker for GBC. Importantly, OLFM4 could be a potential chemotherapeutic target.
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Affiliation(s)
- Zhuying Lin
- Yan'an Hospital Affiliated to Kunming Medical University/Yan'an Hospital of Kunming City, Kunming, Yunnan 650051, China; Key Laboratory of Tumor Immunological Prevention and Treatment of Yunnan Province, Kunming, Yunnan 650051, China; Yunnan Cell Biology and Clinical Translational Research Center, Kunming, Yunnan 650051, China; Kunming Key Laboratory of Biotherapy, Kunming, Yunnan 650051, China
| | - Songlin Yang
- Yan'an Hospital Affiliated to Kunming Medical University/Yan'an Hospital of Kunming City, Kunming, Yunnan 650051, China; Key Laboratory of Tumor Immunological Prevention and Treatment of Yunnan Province, Kunming, Yunnan 650051, China; Yunnan Cell Biology and Clinical Translational Research Center, Kunming, Yunnan 650051, China; Kunming Key Laboratory of Biotherapy, Kunming, Yunnan 650051, China
| | - Yong Zhou
- Department of Cancer Biotherapy Center, Yunnan Cancer Hospital/The Third Affiliated Hospital of Kunming Medical University, Kunming 650118, China
| | - Zongliu Hou
- Yan'an Hospital Affiliated to Kunming Medical University/Yan'an Hospital of Kunming City, Kunming, Yunnan 650051, China; Key Laboratory of Tumor Immunological Prevention and Treatment of Yunnan Province, Kunming, Yunnan 650051, China; Yunnan Cell Biology and Clinical Translational Research Center, Kunming, Yunnan 650051, China; Kunming Key Laboratory of Biotherapy, Kunming, Yunnan 650051, China
| | - Lin Li
- Yan'an Hospital Affiliated to Kunming Medical University/Yan'an Hospital of Kunming City, Kunming, Yunnan 650051, China; Key Laboratory of Tumor Immunological Prevention and Treatment of Yunnan Province, Kunming, Yunnan 650051, China; Yunnan Cell Biology and Clinical Translational Research Center, Kunming, Yunnan 650051, China; Kunming Key Laboratory of Biotherapy, Kunming, Yunnan 650051, China
| | - Mingyao Meng
- Yan'an Hospital Affiliated to Kunming Medical University/Yan'an Hospital of Kunming City, Kunming, Yunnan 650051, China; Key Laboratory of Tumor Immunological Prevention and Treatment of Yunnan Province, Kunming, Yunnan 650051, China; Yunnan Cell Biology and Clinical Translational Research Center, Kunming, Yunnan 650051, China; Kunming Key Laboratory of Biotherapy, Kunming, Yunnan 650051, China
| | - Chunlei Ge
- Department of Cancer Biotherapy Center, Yunnan Cancer Hospital/The Third Affiliated Hospital of Kunming Medical University, Kunming 650118, China
| | - Baozhen Zeng
- Department of Pathology, Guangdong Provincial People's Hospital/Guangdong Academy of Medical Sciences, 106, Zhongshan Road II, Guangzhou 510000, China
| | - Jinbao Lai
- Yan'an Hospital Affiliated to Kunming Medical University/Yan'an Hospital of Kunming City, Kunming, Yunnan 650051, China; Key Laboratory of Tumor Immunological Prevention and Treatment of Yunnan Province, Kunming, Yunnan 650051, China; Yunnan Cell Biology and Clinical Translational Research Center, Kunming, Yunnan 650051, China
| | - Hui Gao
- Yan'an Hospital Affiliated to Kunming Medical University/Yan'an Hospital of Kunming City, Kunming, Yunnan 650051, China; Key Laboratory of Tumor Immunological Prevention and Treatment of Yunnan Province, Kunming, Yunnan 650051, China; Yunnan Cell Biology and Clinical Translational Research Center, Kunming, Yunnan 650051, China; Kunming Key Laboratory of Biotherapy, Kunming, Yunnan 650051, China
| | - Yiyi Zhao
- Yan'an Hospital Affiliated to Kunming Medical University/Yan'an Hospital of Kunming City, Kunming, Yunnan 650051, China; Key Laboratory of Tumor Immunological Prevention and Treatment of Yunnan Province, Kunming, Yunnan 650051, China; Yunnan Cell Biology and Clinical Translational Research Center, Kunming, Yunnan 650051, China; Kunming Key Laboratory of Biotherapy, Kunming, Yunnan 650051, China
| | - Yanhua Xie
- Yan'an Hospital Affiliated to Kunming Medical University/Yan'an Hospital of Kunming City, Kunming, Yunnan 650051, China; Key Laboratory of Tumor Immunological Prevention and Treatment of Yunnan Province, Kunming, Yunnan 650051, China; Yunnan Cell Biology and Clinical Translational Research Center, Kunming, Yunnan 650051, China; Kunming Key Laboratory of Biotherapy, Kunming, Yunnan 650051, China
| | - Shan He
- Yan'an Hospital Affiliated to Kunming Medical University/Yan'an Hospital of Kunming City, Kunming, Yunnan 650051, China; Key Laboratory of Tumor Immunological Prevention and Treatment of Yunnan Province, Kunming, Yunnan 650051, China; Yunnan Cell Biology and Clinical Translational Research Center, Kunming, Yunnan 650051, China; Kunming Key Laboratory of Biotherapy, Kunming, Yunnan 650051, China
| | - Weiwei Tang
- Yan'an Hospital Affiliated to Kunming Medical University/Yan'an Hospital of Kunming City, Kunming, Yunnan 650051, China; Key Laboratory of Tumor Immunological Prevention and Treatment of Yunnan Province, Kunming, Yunnan 650051, China; Yunnan Cell Biology and Clinical Translational Research Center, Kunming, Yunnan 650051, China; Kunming Key Laboratory of Biotherapy, Kunming, Yunnan 650051, China
| | - Ruhong Li
- Yan'an Hospital Affiliated to Kunming Medical University/Yan'an Hospital of Kunming City, Kunming, Yunnan 650051, China; Key Laboratory of Tumor Immunological Prevention and Treatment of Yunnan Province, Kunming, Yunnan 650051, China; Yunnan Cell Biology and Clinical Translational Research Center, Kunming, Yunnan 650051, China; Kunming Key Laboratory of Biotherapy, Kunming, Yunnan 650051, China.
| | - Jing Tan
- Yan'an Hospital Affiliated to Kunming Medical University/Yan'an Hospital of Kunming City, Kunming, Yunnan 650051, China; Key Laboratory of Tumor Immunological Prevention and Treatment of Yunnan Province, Kunming, Yunnan 650051, China; Yunnan Cell Biology and Clinical Translational Research Center, Kunming, Yunnan 650051, China; Kunming Key Laboratory of Biotherapy, Kunming, Yunnan 650051, China.
| | - Wenju Wang
- Yan'an Hospital Affiliated to Kunming Medical University/Yan'an Hospital of Kunming City, Kunming, Yunnan 650051, China; Key Laboratory of Tumor Immunological Prevention and Treatment of Yunnan Province, Kunming, Yunnan 650051, China; Yunnan Cell Biology and Clinical Translational Research Center, Kunming, Yunnan 650051, China; Kunming Key Laboratory of Biotherapy, Kunming, Yunnan 650051, China.
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8
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Olfm4 Is Highly Expressed in HCC Patients and as a Biomarker and Therapeutic Target for HCC. Can J Gastroenterol Hepatol 2021; 2021:5601678. [PMID: 34912753 PMCID: PMC8668352 DOI: 10.1155/2021/5601678] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 11/24/2021] [Indexed: 11/17/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is one of the primary types of cancer that claims many lives worldwide, and its incidence continues to increase. Conventional therapies against liver cancer are inadequate, and the pathogenesis of HCC remains unclear. Thus, not only are more effective therapies to treat HCC required but also identification of the key genes involved in its pathogenesis is important for developing such therapies. This study found that olfactomedin 4 (OLFM4) level is higher in HCC patients than in healthy individuals. Furthermore, HCC patients also have higher messenger ribonucleic acid (mRNA) expression level in HCC tissues than in liver paracancerous tissues. OLFM4 has high predictive capacity as a biomarker for HCC and closely correlates to tumor size. It is confirmed that OLFM4 contributes to cancer cell proliferation, and HIF1α is involved in this process. Thus, the OLFM4/HIF-1α axis might be a target signaling pathway for developing novel drugs to treat HCC.
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9
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Li R, Zeng X, Yang M, Feng J, Xu X, Bao L, Ye T, Wang X, Xue B, Huang Y. Antidiabetic DPP-4 Inhibitors Reprogram Tumor Microenvironment That Facilitates Murine Breast Cancer Metastasis Through Interaction With Cancer Cells via a ROS-NF-кB-NLRP3 Axis. Front Oncol 2021; 11:728047. [PMID: 34631556 PMCID: PMC8497989 DOI: 10.3389/fonc.2021.728047] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Accepted: 09/01/2021] [Indexed: 01/21/2023] Open
Abstract
Improvement of understanding of the safety profile and biological significance of antidiabetic agents in breast cancer (BC) progression may shed new light on minimizing the unexpected side effect of antidiabetic reagents in diabetic patients with BC. Our recent finding showed that Saxagliptin (Sax) and Sitagliptin (Sit), two common antidiabetic dipeptidyl peptidase-4 inhibitors (DPP-4i) compounds, promoted murine BC 4T1 metastasis via a ROS–NRF2–HO-1 axis in nonobese diabetic–severe combined immunodeficiency (NOD-SCID) mice. However, the potential role of DPP-4i in BC progression under immune-competent status remains largely unknown. Herein, we extended our investigation and revealed that Sax and Sit also accelerated murine BC 4T1 metastasis in orthotopic, syngeneic, and immune-competent BALB/c mice. Mechanically, we found that DPP-4i not only activated ROS–NRF2–HO-1 axis but also triggered reactive oxygen species (ROS)-dependent nuclear factor kappa B (NF-κB) activation and its downstream metastasis-associated gene levels in vitro and in vivo, while NF-кB inhibition significantly abrogated DPP-4i-driven BC metastasis in vitro. Meanwhile, inhibition of NRF2–HO-1 activation attenuated DPP-4i-driven NF-кB activation, while NRF2 activator ALA enhanced NF-кB activation, indicating an essential role of ROS–NRF2–HO-1 axis in DPP-4i-driven NF-кB activation. Furthermore, we also found that DPP-4i increased tumor-infiltrating CD45, MPO, F4/80, CD4, and Foxp3-positive cells and myeloid-derived suppressor cells (MDSCs), and decreased CD8-positive lymphocytes in metastatic sites, but did not significantly alter cell viability, apoptosis, differentiation, and suppressive activation of 4T1-induced splenic MDSCs. Moreover, we revealed that DPP-4i triggered ROS-NF-κB-dependent NLRP3 inflammasome activation in BC cells, leading to increase in inflammation cytokines such as interleukin (IL)-6, tumor necrosis factor alpha (TNF-α), vascular endothelial growth factor (VEGF), intercellular cell adhesion molecule 1 (ICAM-1), vascular cell adhesion molecule 1 (VCAM-1), IL-1β and IL-33, and MDSCs inductors granulocyte-macrophage colony-stimulating factor (GM-CSF), G-CSF, and M-CSF, which play a crucial role in the remodeling of tumor immune-suppressive microenvironment. Thus, our findings suggest that antidiabetic DPP-4i reprograms tumor microenvironment that facilitates murine BC metastasis by interaction with BC cells via a ROS–NRF2–HO-1–NF-κB–NLRP3 axis. This finding not only provides a mechanistic insight into the oncogenic ROS–NRF2–HO-1 in DPP-4i-driven BC progression but also offers novel insights relevant for the improvement of tumor microenvironment to alleviate DPP-4i-induced BC metastasis.
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Affiliation(s)
- Rui Li
- National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Infection and Immunity, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Xin Zeng
- National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Infection and Immunity, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Meihua Yang
- Departments of Neurology, Washington University School of Medicine and Barnes-Jewish Hospital, Saint Louis, MO, United States
| | - Jinmei Feng
- National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Infection and Immunity, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Xiaohui Xu
- National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Infection and Immunity, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Liming Bao
- Department of Pathology, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - Tingbo Ye
- National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Infection and Immunity, Children's Hospital of Chongqing Medical University, Chongqing, China.,Department of Laboratory Medicine, The Third People's Hospital of Chengdu, Chengdu, China
| | - Xin Wang
- National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Infection and Immunity, Children's Hospital of Chongqing Medical University, Chongqing, China.,Department of Laboratory Medicine, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - Bingqian Xue
- National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Infection and Immunity, Children's Hospital of Chongqing Medical University, Chongqing, China.,Department of Laboratory Medicine, Chengdu Women's and Children's Central Hospital, Chengdu, China
| | - Yi Huang
- National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Infection and Immunity, Children's Hospital of Chongqing Medical University, Chongqing, China
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10
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Ren X, Geng M, Xu K, Lu C, Cheng Y, Kong L, Cai Y, Hou W, Lu Y, Aihaiti Y, Xu P. Quantitative Proteomic Analysis of Synovial Tissue Reveals That Upregulated OLFM4 Aggravates Inflammation in Rheumatoid Arthritis. J Proteome Res 2021; 20:4746-4757. [PMID: 34496567 DOI: 10.1021/acs.jproteome.1c00399] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Tandem mass tag (TMT)-coupled liquid chromatography coupled with tandem mass spectrometry is a powerful method to investigate synovial tissue protein profiles in patients with rheumatoid arthritis (RA) and osteoarthritis (OA). Protein was isolated from synovial tissue samples of 22 patients and labeled with a TMT kit. Over 500 proteins were identified as the differential expression protein on comparing RA and OA synovial tissue, including 239 upregulated and 271 downregulated proteins. Data are available via ProteomeXchange with identifier PXD027703. Gene ontology and Kyoto Encyclopedia of Genes and Genomes analysis showed that the majority participated in the developmental processes and protein processing in the endoplasmic reticulum. Olfactomedin 4 (OLFM4), a secreted glycoprotein, in joint inflammation of RA was explored. OLFM4 was upregulated in RA synovial tissue samples. In fibroblast-like synoviocytes (FLS), inflammation cytokines, TNF-α, interleukin (IL)-1β, and LPS can upregulate OLFM4. After OLFM4 knockdown under TNF-α stimulation, RA FLS proliferation was inhibited and the expression of CXCL9, CXCL11, and MMP-1 was decreased. Overall, the RA synovial tissue protein expression profile by proteomic analysis shows some unique targets in RA pathophysiology, and OLFM4 in FLS plays an important role in RA joint inflammation. OLFM4 can be a promising therapeutic target in RA synovial tissue.
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Affiliation(s)
- Xiaoyu Ren
- Department of Joint Surgery, Xi'an Hong Hui Hospital, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710054, P. R. China
| | - Manman Geng
- Precision Medicine Institute, The Second Affiliated Hospital of Xian Jiaotong University, Xi'an 710061, P. R. China.,National & Local Joint Engineering Research Center of Biodiagnosis and Biotherapy, The Second Affiliated Hospital, Xi'an Jiaotong University, No.157, Xiwu Road, Xi'an 710004, Shaanxi, P. R. China
| | - Ke Xu
- Department of Joint Surgery, Xi'an Hong Hui Hospital, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710054, P. R. China
| | - Chao Lu
- Department of Joint Surgery, Xi'an Hong Hui Hospital, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710054, P. R. China
| | - Yuanyuan Cheng
- Precision Medicine Institute, The Second Affiliated Hospital of Xian Jiaotong University, Xi'an 710061, P. R. China.,National & Local Joint Engineering Research Center of Biodiagnosis and Biotherapy, The Second Affiliated Hospital, Xi'an Jiaotong University, No.157, Xiwu Road, Xi'an 710004, Shaanxi, P. R. China
| | - Linbo Kong
- Department of Joint Surgery, Xi'an Hong Hui Hospital, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710054, P. R. China
| | - Yongsong Cai
- Department of Joint Surgery, Xi'an Hong Hui Hospital, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710054, P. R. China
| | - Weikun Hou
- Department of Joint Surgery, Xi'an Hong Hui Hospital, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710054, P. R. China
| | - Yufeng Lu
- Department of Joint Surgery, Xi'an Hong Hui Hospital, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710054, P. R. China
| | - Yirixiati Aihaiti
- Department of Joint Surgery, Xi'an Hong Hui Hospital, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710054, P. R. China
| | - Peng Xu
- Department of Joint Surgery, Xi'an Hong Hui Hospital, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710054, P. R. China
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11
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Li R, Zeng X, Yang M, Xu X, Feng J, Bao L, Xue B, Wang X, Huang Y. Antidiabetic Agent DPP-4i Facilitates Murine Breast Cancer Metastasis by Oncogenic ROS-NRF2-HO-1 Axis via a Positive NRF2-HO-1 Feedback Loop. Front Oncol 2021; 11:679816. [PMID: 34123848 PMCID: PMC8187865 DOI: 10.3389/fonc.2021.679816] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 05/04/2021] [Indexed: 01/03/2023] Open
Abstract
Cancer has been as one of common comorbidities of diabetes. Long-term antidiabetic treatment may potentially exert uncertain impacts on diabetic patients with cancer including breast cancer (BC). Dipeptidyl peptidase-4 inhibitors (DPP-4i) are currently recommended by the AACE as first-line hypoglycemic drugs in type 2 diabetes mellitus (T2DM). Although the safety of DPP-4i has been widely evaluated, the potential side-effects of DPP-4i in cancer metastasis were also reported and remain controversial. Here, we revealed that Saxagliptin (Sax) and Sitagliptin (Sit), two common DPP-4i compounds, potentially promoted murine BC 4T1 metastasis in vitro and in vivo under immune-deficient status. Mechanically, we observed that DPP-4i treatment induced aberrant oxidative stress by triggering ROS overproduction, as well as ROS-dependent NRF2 and HO-1 activations in BC cells, while specific inhibition of ROS, NRF2 or HO-1 activations abrogated DPP-4i-driven BC metastasis and metastasis-associated gene expression in vitro. Furthermore, ALA, a NRF2 activator significantly promoted BC metastasis in vitro and in vivo, which can be abrogated by specific HO-1 inhibition in vitro. Moreover, specific HO-1 inhibition not only reversed DPP-4i-induced NRF2 activation but also abrogated ALA-induced NRF2 activation, resulting in a decrease of metastasis-associated genes, indicating a positive-feedback NRF2-HO-1 loop. Our findings suggest that DPP-4i accelerates murine BC metastasis through an oncogenic ROS-NRF2-HO-1 axis via a positive-feedback NRF2-HO-1 loop. Therefore, this study not only offers novel insights into an oncogenic role of DPP-4i in BC progression but also provides new strategies to alleviate the dark side of DPP-4i by targeting HO-1.
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Affiliation(s)
- Rui Li
- Chongqing Key Laboratory of Child Infection and Immunity, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Xin Zeng
- Chongqing Key Laboratory of Child Infection and Immunity, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Meihua Yang
- Department of Neurosurgery, Xinqiao Hospital of Third Military Medical University, Chongqing, China
| | - Xiaohui Xu
- Chongqing Key Laboratory of Child Infection and Immunity, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Jinmei Feng
- Chongqing Key Laboratory of Child Infection and Immunity, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Liming Bao
- Department of Pathology, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - Bingqian Xue
- Chongqing Key Laboratory of Child Infection and Immunity, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Xin Wang
- Chongqing Key Laboratory of Child Infection and Immunity, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China.,Department of Laboratory Medicine, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - Yi Huang
- Chongqing Key Laboratory of Child Infection and Immunity, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
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12
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Xu X, Zeng X, Li R, Feng J, Huang D, Huang Y. [Mechanism of hepatocyte mitochondrial NDUFA13 deficiency-induced liver fibrogenesis: the role of abnormal hepatic stellate cell activation]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2021; 41:529-535. [PMID: 33963711 DOI: 10.12122/j.issn.1673-4254.2021.04.07] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To investigate the role of hepatocyte mitochondrial NDUFA13 loss in the liver fibrogenesis in mice and explore the possible mechanisms. OBJECTIVE We used liver-specific NDUFA13 heterozygous knockout mouse models (NDUFA13fl/-; Alb-Cre) established previously by intercrossing NDUFA13fl/fl and Alb-Cre mice, with their littermate control NDUFA13fl/fl mice as the control (n=8). The mice were euthanized at the age of 4 weeks and 2 years, and the liver tissues were collected for HE and Masson staining to observe the pathological changes and fibrosis phenotypes. Western blotting was performed to detect the expression of NDUFA13 protein in the liver tissues, and the infiltration of F4/80+ macrophages and the expressions of TGF-β1, TNF-α and IL-1β were analyzed by immunofluorescence assay. The expression levels of α-SMA, matrix metalloproteinase-9 (MMP-9) and tissue inhibitor of matrix metalloproteases 1 (TIMP-1), collagen-Ⅰ and collagen-Ⅲ were assayed by immunohistochemistry. OBJECTIVE HE and Masson staining showed obvious inflammatory infiltration but no significant fibrosis in the liver tissues of 4-week-old NDUFA13fl/- mice, but severe liver damage with massive fibrosis was observed in 2-year-old NDUFA13fl/- mice. NDUFA13 expression in 2-year-old NDUFA13fl/- mice markedly decreased compared with that in the control NDUFA13fl/fl mice as shown by Western blotting (P < 0.05). Immunohistochemistry showed obvious infiltration of F4/80+ macrophages in the liver tissue with a large amount of TGF-β1 production (P < 0.05) and TNF-α and IL-1β secretions in NDUFA13fl/- mice (P < 0.05). NDUFA13 knockout obviously promoted α-SMA expression (P < 0.05) and collagen-Ⅰ and collagen-Ⅲ deposition (P < 0.05) while significantly decreased MMP-9 and increased TIMP-1 expression in the liver (P < 0.05). OBJECTIVE Hepatocytes-specific NDUFA13 deficiency can trigger spontaneous and chronic liver fibrosis phenotypes in mice probably in association with abnormal activation of hepatic stellate cells induced by macrophages and inflammatory factors.
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Affiliation(s)
- X Xu
- Pediatrics Research Institute, Children's Hospital of Chongqing Medical University; National Clinical Research Center for Child Health and Disorders; Ministry of Education Key Laboratory of Child Development and Disorders; China International Science and Technology Cooperation Base of Child Development and Critical Disorders; Chongqing Key Laboratory of Child Infection and Immunity, Chongqing 400014, China
| | - X Zeng
- Pediatrics Research Institute, Children's Hospital of Chongqing Medical University; National Clinical Research Center for Child Health and Disorders; Ministry of Education Key Laboratory of Child Development and Disorders; China International Science and Technology Cooperation Base of Child Development and Critical Disorders; Chongqing Key Laboratory of Child Infection and Immunity, Chongqing 400014, China
| | - R Li
- Pediatrics Research Institute, Children's Hospital of Chongqing Medical University; National Clinical Research Center for Child Health and Disorders; Ministry of Education Key Laboratory of Child Development and Disorders; China International Science and Technology Cooperation Base of Child Development and Critical Disorders; Chongqing Key Laboratory of Child Infection and Immunity, Chongqing 400014, China
| | - J Feng
- Pediatrics Research Institute, Children's Hospital of Chongqing Medical University; National Clinical Research Center for Child Health and Disorders; Ministry of Education Key Laboratory of Child Development and Disorders; China International Science and Technology Cooperation Base of Child Development and Critical Disorders; Chongqing Key Laboratory of Child Infection and Immunity, Chongqing 400014, China
| | - D Huang
- Pediatrics Research Institute, Children's Hospital of Chongqing Medical University; National Clinical Research Center for Child Health and Disorders; Ministry of Education Key Laboratory of Child Development and Disorders; China International Science and Technology Cooperation Base of Child Development and Critical Disorders; Chongqing Key Laboratory of Child Infection and Immunity, Chongqing 400014, China
| | - Y Huang
- Pediatrics Research Institute, Children's Hospital of Chongqing Medical University; National Clinical Research Center for Child Health and Disorders; Ministry of Education Key Laboratory of Child Development and Disorders; China International Science and Technology Cooperation Base of Child Development and Critical Disorders; Chongqing Key Laboratory of Child Infection and Immunity, Chongqing 400014, China
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13
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Xu X, Li R, Zeng X, Wang X, Xue B, Huang D, Huang Y. [Pathogenic role of NDUFA13 inactivation in spontaneous hepatitis in mice and the mechanism]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2021; 41:55-63. [PMID: 33509753 DOI: 10.12122/j.issn.1673-4254.2021.01.07] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
OBJECTIVE To investigate the role of NDUFA13 inactivation in the pathogenesis of spontaneous hepatitis in mice and explore the possible mechanisms. METHODS Hepatocyte-specific NDUFA13 knockout (NDUFA13fl/-) mice were generated by intercrossing NDUFA13fl/fl and Alb-Cre mice based on Cre/loxP transgenic technology, and tail and liver DNA of the mice was genotyped by PCR analysis. Ten NDUFA13fl/- mice and 10 littermate control NDUFA13fl/fl mice were housed, and in each group, 5 mice were euthanized at the age of 4 weeks and the other 5 at two years for pathological examination of the liver tissues with HE staining. Immunohistochemistry was used to verify the expression levels of NDUFA13, NF-κB/p65, NF-κB/p-p65 and inflammasome NLRP3. The total intracellular ROS and mitochondrial ROS levels were measured with a ROS staining kit. The expressions of the inflammatory cell markers (CD45, MPO, and F4/80) and inflammatory cytokines (IL1β and IL33) in the liver were detected with immunohistochemistry and immunofluorescence assay. RESULTS Liver-specific NDUFA13 heterozygous knockout mice were successfully constructed as verified by PCR results. HE staining revealed severe liver damage in both 4- week-old and 2-year-old NDUFA13fl/- mice as compared with their littermate controls. Immunohistochemistry showed a significant decrease of NDUFA13 expression in both 4-week-old and 2-year-old NDUFA13fl/- mice (P < 0.05). The expression levels of NF-κB signals p65, p-p65 and NLRP3 inflammasomes were all significantly increased in NDUFA13fl/- mice (P < 0.05). The total intracellular ROS and mitochondrial ROS levels in NDUFA13fl/- mice were also significantly increased. NDUFA13 knockout obviously promoted the expression of the inflammatory cell markers (CD45, MPO and F4/80) and the secretion of IL-1β and IL-33 in the liver tissue of the mice (P < 0.05). CONCLUSIONS Hepatocytes-specific NDUFA13 ablation can trigger spontaneous hepatitis in mice possibly mediated by the activation of ROS/NF-κB/NLRP3 signaling.
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Affiliation(s)
- Xiaohui Xu
- Institute of Pediatrics, Children's Hospital of Chongqing Medical University, Chongqing Key Laboratory of Child Infection and Immunity// Key Laboratory of Child Development and Disorders of Ministry of Education//National Clinical Research Center for Child Health and Disorders//China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing 400014, China
| | - Rui Li
- Institute of Pediatrics, Children's Hospital of Chongqing Medical University, Chongqing Key Laboratory of Child Infection and Immunity// Key Laboratory of Child Development and Disorders of Ministry of Education//National Clinical Research Center for Child Health and Disorders//China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing 400014, China
| | - Xin Zeng
- Institute of Pediatrics, Children's Hospital of Chongqing Medical University, Chongqing Key Laboratory of Child Infection and Immunity// Key Laboratory of Child Development and Disorders of Ministry of Education//National Clinical Research Center for Child Health and Disorders//China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing 400014, China
| | - Xin Wang
- Institute of Pediatrics, Children's Hospital of Chongqing Medical University, Chongqing Key Laboratory of Child Infection and Immunity// Key Laboratory of Child Development and Disorders of Ministry of Education//National Clinical Research Center for Child Health and Disorders//China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing 400014, China
| | - Bingqian Xue
- Institute of Pediatrics, Children's Hospital of Chongqing Medical University, Chongqing Key Laboratory of Child Infection and Immunity// Key Laboratory of Child Development and Disorders of Ministry of Education//National Clinical Research Center for Child Health and Disorders//China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing 400014, China
| | - Daochao Huang
- Institute of Pediatrics, Children's Hospital of Chongqing Medical University, Chongqing Key Laboratory of Child Infection and Immunity// Key Laboratory of Child Development and Disorders of Ministry of Education//National Clinical Research Center for Child Health and Disorders//China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing 400014, China
| | - Yi Huang
- Institute of Pediatrics, Children's Hospital of Chongqing Medical University, Chongqing Key Laboratory of Child Infection and Immunity// Key Laboratory of Child Development and Disorders of Ministry of Education//National Clinical Research Center for Child Health and Disorders//China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing 400014, China
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14
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Wang X, Ye T, Xue B, Yang M, Li R, Xu X, Zeng X, Tian N, Bao L, Huang Y. Mitochondrial GRIM-19 deficiency facilitates gastric cancer metastasis through oncogenic ROS-NRF2-HO-1 axis via a NRF2-HO-1 loop. Gastric Cancer 2021; 24:117-132. [PMID: 32770429 DOI: 10.1007/s10120-020-01111-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Accepted: 07/26/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND NRF2, a prime target of cellular defense against oxidative stress, has shown a dark side profile in cancer progression. GRIM-19, an essential subunit of the mitochondrial MRC complex I, was recently identified as a suppressive role in tumorigenesis of human gastric cancer (GC). However, little information is available on the role of GRIM-19 and its cross-talk with NRF2 in GC metastasis. METHODS Online GC database was used to investigate DNA methylation and survival outcomes of GRIM-19. CRISPR/Cas9 lentivirus-mediated gene editing, metastasis mice models and pharmacological intervention were applied to investigate the role of GRIM-19 deficiency in GC metastasis. Quantitative RT-PCR, FACS, Western blot, IHC, IF and reporter gene assay were performed to explore underlying mechanisms. RESULTS Low GRIM-19 is correlated with poor survival outcome of GC patients while DNA hypermethylation is associated with GRIM-19 downregulation. GRIM-19 deficiency facilitates GC metastasis and triggers aberrant oxidative stress as well as ROS-dependent NRF2-HO-1 activation. Experimental interventions of specific ROS, NRF2 or HO-1 inhibitor significantly abrogate GRIM-19 deficiency-driven GC metastasis in vitro and in vivo. Moreover, HO-1 inhibition not only reverses GRIM-19 deficiency-driven NRF2 activation, but also feedback blocks NRF2 activator-induced NRF2 signaling, resulting in decreased metastasis-associated genes. CONCLUSIONS Our data suggest that GRIM-19 deficiency accelerates GC metastasis through the oncogenic ROS-NRF2-HO-1 axis via a positive-feedback NRF2-HO-1 loop. Therefore, this study not only offers novel insights into the role of oncogenic NRF2 in tumor progression, but also provides new strategies to alleviate the dark side of NRF2 by targeting HO-1.
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Affiliation(s)
- Xin Wang
- Chongqing Key Laboratory of Child Infection and Immunity, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, Children's Hospital of Chongqing Medical University, No. 136 Zhongshan Erd Road, Yuzhong District, Chongqing, 400014, China
| | - Tingbo Ye
- Chongqing Key Laboratory of Child Infection and Immunity, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, Children's Hospital of Chongqing Medical University, No. 136 Zhongshan Erd Road, Yuzhong District, Chongqing, 400014, China
- The Third People's Hospital of Chengdu, Chengdu, 610031, China
| | - Bingqian Xue
- Chongqing Key Laboratory of Child Infection and Immunity, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, Children's Hospital of Chongqing Medical University, No. 136 Zhongshan Erd Road, Yuzhong District, Chongqing, 400014, China
| | - Meihua Yang
- Department of Neurosurgery, Xinqiao Hospital, Army Medical University, Chongqing, 400037, China
| | - Rui Li
- Chongqing Key Laboratory of Child Infection and Immunity, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, Children's Hospital of Chongqing Medical University, No. 136 Zhongshan Erd Road, Yuzhong District, Chongqing, 400014, China
| | - Xiaohui Xu
- Chongqing Key Laboratory of Child Infection and Immunity, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, Children's Hospital of Chongqing Medical University, No. 136 Zhongshan Erd Road, Yuzhong District, Chongqing, 400014, China
| | - Xin Zeng
- Chongqing Key Laboratory of Child Infection and Immunity, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, Children's Hospital of Chongqing Medical University, No. 136 Zhongshan Erd Road, Yuzhong District, Chongqing, 400014, China
| | - Na Tian
- Chongqing Key Laboratory of Child Infection and Immunity, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, Children's Hospital of Chongqing Medical University, No. 136 Zhongshan Erd Road, Yuzhong District, Chongqing, 400014, China
| | - Liming Bao
- Department of Pathology, University of Colorado School of Medicine, Aurora, CO, 80045, USA
| | - Yi Huang
- Chongqing Key Laboratory of Child Infection and Immunity, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, Children's Hospital of Chongqing Medical University, No. 136 Zhongshan Erd Road, Yuzhong District, Chongqing, 400014, China.
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15
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Yang C, Gong A. Integrated bioinformatics analysis for differentially expressed genes and signaling pathways identification in gastric cancer. Int J Med Sci 2021; 18:792-800. [PMID: 33437215 PMCID: PMC7797537 DOI: 10.7150/ijms.47339] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 11/13/2020] [Indexed: 12/13/2022] Open
Abstract
Background: Gastric cancer (GC) has a high mortality rate in cancer-related deaths worldwide. Currently, the pathogenesis of gastric cancer progression remains unclear. Here, we identified several vital candidate genes related to gastric cancer development and revealed the potential pathogenic mechanisms using integrated bioinformatics analysis. Methods: Two microarray datasets from Gene Expression Omnibus (GEO) database integrated. Limma package was used to analyze differentially expressed genes (DEGs) between GC and matched normal specimens. DAVID was utilized to conduct Gene ontology (GO) and KEGG enrichment analysis. The relative expression of OLFM4, IGF2BP3, CLDN1 and MMP1were analyzed based on TCGA database provided by UALCAN. Western blot and quantitative real time PCR assay were performed to determine the protein and mRNA levels of OLFM4, IGF2BP3, CLDN1 and MMP1 in GC tissues and cell lines, respectively. Results: We downloaded the expression profiles of GSE103236 and GSE118897 from the Gene Expression Omnibus (GEO) database. Two integrated microarray datasets were used to obtain differentially expressed genes (DEGs), and bioinformatics methods were used for in-depth analysis. After gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichments analysis, we identified 61 DEGs in common, of which the expression of 34 genes were elevated and 27 genes were decreased. GO analysis displayed that the biological functions of DEGs mainly focused on negative regulation of growth, fatty acid binding, cellular response to zinc ion and calcium-independent cell-cell adhesion. KEGG pathway analysis demonstrated that these DEGs mainly related to the Wnt and tumor signaling pathway. Interestingly, we found 4 genes were most significantly upregulated in the DEGs, which were OLFM4, IGF2BP3, CLDN1 and MMP1. Then, we confirmed the upregulation of these genes in STAD based on sample types. In the final, western blot and qRT-PCR assay were performed to determine the protein and mRNA levels of OLFM4, IGF2BP3, CLDN1 and MMP1 in GC tissues and cell lines. Conclusion: In our study, using integrated bioinformatics to screen DEGs in gastric cancer could benefit us for understanding the pathogenic mechanism underlying gastric cancer progression. Meanwhile, we also identified four significantly upregulated genes in DEGs from both two datasets, which might be used as the biomarkers for early diagnosis and prevention of gastric cancer.
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Affiliation(s)
- ChenChen Yang
- Department of Emergency, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, Huai'an 223300, Jiangsu, China
| | - Aifeng Gong
- Department of Gerontology, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, Huai'an, 223300, Jiangsu, China
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16
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Li Y, Gong Y, Ma J, Gong X. Overexpressed circ-RPL15 predicts poor survival and promotes the progression of gastric cancer via regulating miR-502-3p/OLFM4/STAT3 pathway. Biomed Pharmacother 2020; 127:110219. [PMID: 32559850 DOI: 10.1016/j.biopha.2020.110219] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 04/23/2020] [Accepted: 04/28/2020] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Increasing studies have revealed that circular RNAs (circRNAs) contribute to gastric cancer (GC) progression. The circular RNA ribosomal protein L15 (circ-RPL15) is involved in chronic lymphocytic leukemia. However, its expression and functions in GC remain elusive. METHODS The expression of circ-RPL15 in human GC tissues and adjacent normal tissues, human gastric cancer cell lines (MGC-803, BGC-823, MGN-28, SGC-7901, AGS) and normal gastric mucosal epithelial cell line (GES-1) were detected by RT-PCR. The relationship between circ-RPL15 level and clinical-pathological indicators were also analyzed. Gain- of function experiments of circ-RPL15 and miR-502-3p were conducted to verify their roles in mediating GC cell proliferation, apoptosis and metastasis. Also, the downstream mechanisms of circ-RPL15 were predicted by bioinformatics analysis, and the interactions between circ-RPL15 and miR-502-3p, miR-502-3p and OLFM4 were verified by dual luciferase reporter gene assay and RNA FISH. RESULTS circ-RPL15 was upregulated in GC tissues and cell lines, and the overexpressed circ-RPL15 was correlated with poorer survival of GC patients. Functionally, circ-RPL15 upregulation distinctly promoted the proliferation, migration and invasion of GC cells and inhibited apoptosis. Mechanistically, circ-RPL15 functioned as a competitive endogenous RNA via sponging miR-502-3p and activated OLFM4/STAT3 pathway. CONCLUSION circ-RPL15 promotes GC progression and predicts poor prognosis of GC patients, and regulates the malignant phenotypes of GC cells by mediating the miR-502-3p/OLFM4/STAT3 axis.
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Affiliation(s)
- Yutao Li
- Department of General Surgery, Linyi People's Hospital, Linyi, Shandong, 276003, China
| | - Yantao Gong
- Department of General Surgery, Linyi People's Hospital, Linyi, Shandong, 276003, China
| | - Jing Ma
- Lanshan District Community Health Service Center, Linyi, Shandong, 276002, China
| | - Xufei Gong
- Department of General Surgery, Linyi People's Hospital, Linyi, Shandong, 276003, China.
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17
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Stark JE, Opoka AM, Mallela J, Devarajan P, Ma Q, Levinsky NC, Stringer KF, Wong HR, Alder MN. Juvenile OLFM4-null mice are protected from sepsis. Am J Physiol Renal Physiol 2020; 318:F809-F816. [PMID: 32068457 PMCID: PMC7099509 DOI: 10.1152/ajprenal.00443.2019] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Pediatric sepsis is a leading cause of morbidity and mortality in children. One of the most common and devastating morbidities is sepsis-related acute kidney injury (AKI). AKI was traditionally thought to be related to low perfusion and acute tubular necrosis. However, little acute tubular necrosis can be found following septic AKI, and little is known about the mechanism of septic AKI. Olfactomedin-4 (OLFM4) is a secreted glycoprotein that marks a subset of neutrophils. Increased expression of OLFM4 in the blood is associated with worse outcomes in sepsis. Here, we investigated a pediatric model of murine sepsis using murine pups to investigate the mechanisms of OLFM4 in sepsis. When sepsis was induced in murine pups, survival was significantly increased in OLFM4-null pups. Immunohistochemistry at 24 h after the induction of sepsis demonstrated increased expression of OLFM4 in the kidney, which was localized to the loop of Henle. Renal cell apoptosis and plasma creatinine were significantly increased in wild-type versus OLFM4-null pups. Finally, bone marrow transplant suggested that increased OLFM4 in the kidney reflects local production rather than filtered from the plasma. These results demonstrate renal expression of OLFM4 for the first time and suggest that a kidney-specific mechanism may contribute to survival differences in OLFM4-null animals.
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Affiliation(s)
- Julie E Stark
- Department of Pediatrics, University of Cincinnati College of Medicine, and Division of Critical Care Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Amy M Opoka
- Department of Pediatrics, University of Cincinnati College of Medicine, and Division of Critical Care Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Jaya Mallela
- Department of Pediatrics, University of Cincinnati College of Medicine, and Division of Critical Care Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Prasad Devarajan
- Division of Nephrology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Qing Ma
- Division of Nephrology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Nick C Levinsky
- Department of Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Keith F Stringer
- Division of Pathology and Laboratory Medicine, University of Cincinnati Department of Pediatrics, Cincinnati, Ohio
| | - Hector R Wong
- Department of Pediatrics, University of Cincinnati College of Medicine, and Division of Critical Care Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Matthew N Alder
- Department of Pediatrics, University of Cincinnati College of Medicine, and Division of Critical Care Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
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18
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Gharehdaghchi Z, Baradaran B, Salehzadeh A, Kazemi T. miR-486-5p regulates cell proliferation and migration in breast cancer. Meta Gene 2020. [DOI: 10.1016/j.mgene.2019.100643] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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19
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Suzuki T, Yamazaki H, Honda K, Ryo E, Kaneko A, Ota Y, Mori T. Altered DNA methylation is associated with aberrant stemness gene expression in early‑stage HNSCC. Int J Oncol 2019; 55:915-924. [PMID: 31432153 DOI: 10.3892/ijo.2019.4857] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Accepted: 07/17/2019] [Indexed: 11/05/2022] Open
Abstract
Head and neck squamous cell carcinoma (HNSCC) is characterized by morphological and functional cellular heterogeneity, which are properties of progenitor cells, as opposed to cell alterations caused by accidental expression of stem cell‑related molecules. The expression levels of stemness molecules and their distribution in HNSCC are unclear. As regards sporadic cellular heterogeneity, methylation is an important factor for transcriptional regulation in tumors. Integrative screening analysis of mRNA expression and altered methylation status was performed with original microarrays in 12 tumor and non‑tumor pairs of oral squamous cell carcinoma (SCC) cases. From this data set, genes regulated via aberrant DNA methylation and classified proteins were validated by function clustering. Olfactomedin 4 (OLFM4), known as an intestinal stemness molecule and cell‑cell adhesion factor, was found to be highly expressed in tumors, with an mRNA expression ratio [tumor/normal (T/N)] of 40.7686 and low methylation (‑18.02%) in the promoter region. In addition, the OLFM4 expression levels increased following treatment with the demethylating agent 5‑azacytidine in two HNSCC cell lines. Furthermore, the expression levels of OLFM4 in 59 cases of early‑stage tongue SCC were analyzed using immunohistochemistry to examine protein expression corresponding to the histopathological definition of tumors and to evaluate prognosis. The aberrant stemness gene expression caused by altered DNA methylation appeared to regulate early‑stage HNSCC characteristics. The results of the present study indicated a correlation between OLFM4 expression and promoter methylation, and suggest that it plays an important role in tumor cell heterogeneity in HNSCC.
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Affiliation(s)
- Takatsugu Suzuki
- Department of Oral Surgery, Tokai University School of Medicine, Isehara, Kanagawa 259‑1193, Japan
| | - Hiroshi Yamazaki
- Department of Oral Surgery, Tokai University School of Medicine, Isehara, Kanagawa 259‑1193, Japan
| | - Kazufumi Honda
- Division of Biomarker for Cancer Early Detection, National Cancer Center Research Institute, Tokyo 104‑0045, Japan
| | - Eijitsu Ryo
- Division of Molecular Pathology, National Cancer Center Research Institute, Tokyo 104‑0045, Japan
| | - Akihiro Kaneko
- Department of Oral Surgery, Tokai University School of Medicine, Isehara, Kanagawa 259‑1193, Japan
| | - Yoshihide Ota
- Department of Oral Surgery, Tokai University School of Medicine, Isehara, Kanagawa 259‑1193, Japan
| | - Taisuke Mori
- Division of Molecular Pathology, National Cancer Center Research Institute, Tokyo 104‑0045, Japan
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20
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Chang YH, Ding DC, Chu TY. Estradiol and Progesterone Induced Differentiation and Increased Stemness Gene Expression of Human Fallopian Tube Epithelial Cells. J Cancer 2019; 10:3028-3036. [PMID: 31281480 PMCID: PMC6590043 DOI: 10.7150/jca.30588] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Accepted: 05/03/2019] [Indexed: 12/12/2022] Open
Abstract
Fallopian tube epithelial cells (FTECs) are thought to be the origin of epithelial ovarian cancer. However, the effect of the hormones on FTECs is unknown, and therefore, this study explored this effect. We successfully derived FTECs from the fallopian tube epithelial layer and treated them with estradiol and progesterone. Reverse transcription polymerase chain reaction was used to evaluate the gene expression of the FTECs' hormone receptors. Confocal and electron microscopy were used to evaluate the morphology of the FTECs after they were treated with hormones. Finally, quantitative PCR was used to evaluate the gene expression of the hormone-treated FTECs. The results showed that the FTECs exhibited cuboidal cell morphology and could be maintained at a constant proliferation rate. Furthermore, flow cytometry revealed that the FTECs expressed stem cell markers, such as SSEA3, SSEA4, and Lgr5. Moreover, the FTECs could express both estrogen and progesterone receptors. In a culture treated with 400 nM estrogen, the FTECs differentiated toward ciliated cells, whereas in a culture treated with estradiol or progesterone, the FTECs increased their expression of certain stem cell markers (SSEA3, SSEA4, and Aldh1) and stemness genes [Wnt (AXIN2, LGR5, LGR6, and OLFM4) and Notch (Hes1) signaling]. In conclusion, hormones may alter the gene expressions of FTECs, and these cells may provide new insights into how FTECs regenerate in response to hormones.
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Affiliation(s)
- Yu-Hsun Chang
- Stem Cell Laboratory, Department of Research, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation; Hualien, Taiwan.,Department of Pediatrics, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation; Tzu Chi University, Hualien, Taiwan
| | - Dah-Ching Ding
- Stem Cell Laboratory, Department of Research, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation; Hualien, Taiwan.,Department of Obstetrics and Gynecology, Hualien Tzu-Chi Hospital, Buddhist Tzu Chi Medical Foundation; Tzu Chi University, Hualien, Taiwan.,Institute of Medical Sciences, Tzu Chi University; Hualien, Taiwan
| | - Tang-Yuan Chu
- Department of Obstetrics and Gynecology, Hualien Tzu-Chi Hospital, Buddhist Tzu Chi Medical Foundation; Tzu Chi University, Hualien, Taiwan.,Institute of Medical Sciences, Tzu Chi University; Hualien, Taiwan
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21
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Ashizawa Y, Kuboki S, Nojima H, Yoshitomi H, Furukawa K, Takayashiki T, Takano S, Miyazaki M, Ohtsuka M. OLFM4 Enhances STAT3 Activation and Promotes Tumor Progression by Inhibiting GRIM19 Expression in Human Hepatocellular Carcinoma. Hepatol Commun 2019; 3:954-970. [PMID: 31304451 PMCID: PMC6601327 DOI: 10.1002/hep4.1361] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Accepted: 04/03/2019] [Indexed: 12/11/2022] Open
Abstract
Olfactomedin 4 (OLFM4) induces signal transducer and activator of transcription 3 (STAT3) activation by inhibiting gene associated with retinoid‐interferon‐induced mortality 19 (GRIM19), a strong STAT3 suppressor gene; however, the mechanisms of OLFM4 for regulating GRIM19‐STAT3 cascade in hepatocellular carcinoma (HCC) remain unclear. The functions and regulations of OLFM4, GRIM19, and STAT3 activation in HCC progression were evaluated using surgical specimens collected from 111 HCC patients or 2 HCC cell lines in vitro. Moreover, the cancer stem cell–like property of OLFM4 mediated by leucine‐rich repeat‐containing G protein‐coupled receptor 5 (LGR5), known as an intestinal stem cell marker, was investigated. OLFM4 was increased in HCC compared with adjacent liver tissue. The multivariate analysis revealed that high OLFM4 expression was an independent factor for poor prognosis. OLFM4 expression was negatively correlated with GRIM19 expression and positively correlated with STAT3 activation in HCC, thereby increasing cell cycle progression. OLFM4 knockdown in HCC cells increased GRIM19 expression and inhibited STAT3 activation; however, after double knockdown of GRIM19 and OLFM4, STAT3 activation decreased by OLFM4 knockdown was increased again. OLFM4 knockdown increased cell apoptosis, inhibited cell proliferation, and suppressed cancer stem cell–like property in HCC cells. The incidence of hematogenous recurrence was higher in HCC patients with high OLFM4 expression, suggesting that anoikis resistance of HCC was enhanced by OLFM4. In clinical cases, LGR5 expression and CD133 expression was correlated with OLFM4 expression in HCC, leading to poor patient prognosis. In vitro, LGR5 enhanced cancer stem cell–like property by up‐regulating OLFM4 through the Wnt signaling pathway. Conclusion: OLFM4 is induced by the LGR5‐Wnt signaling pathway and is strongly associated with aggressive tumor progression and poor prognosis in HCC by regulating STAT3‐induced tumor cell proliferation and cancer stem cell–like property. Therefore, OLFM4 is a novel prognostic predictor and a potential therapeutic target for patients with HCC.
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Affiliation(s)
- Yosuke Ashizawa
- Department of General Surgery, Graduate School of Medicine Chiba University Chiba Japan
| | - Satoshi Kuboki
- Department of General Surgery, Graduate School of Medicine Chiba University Chiba Japan
| | - Hiroyuki Nojima
- Department of General Surgery, Graduate School of Medicine Chiba University Chiba Japan
| | - Hideyuki Yoshitomi
- Department of General Surgery, Graduate School of Medicine Chiba University Chiba Japan
| | - Katsunori Furukawa
- Department of General Surgery, Graduate School of Medicine Chiba University Chiba Japan
| | - Tsukasa Takayashiki
- Department of General Surgery, Graduate School of Medicine Chiba University Chiba Japan
| | - Shigetsugu Takano
- Department of General Surgery, Graduate School of Medicine Chiba University Chiba Japan
| | - Masaru Miyazaki
- Department of General Surgery, Graduate School of Medicine Chiba University Chiba Japan
| | - Masayuki Ohtsuka
- Department of General Surgery, Graduate School of Medicine Chiba University Chiba Japan
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22
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Li J, Liu C, Li D, Wan M, Zhang H, Zheng X, Jie X, Zhang P, Li J, Hou H, Sun Q. OLFM4 Inhibits Epithelial-Mesenchymal Transition and Metastatic Potential of Cervical Cancer Cells. Oncol Res 2019; 27:763-771. [PMID: 30764901 PMCID: PMC7848444 DOI: 10.3727/096504018x15399955297355] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
OLFM4 has been shown to play an important role in tumor initiation and progression. This study aims to investigate the role of OLFM4 in metastatic cervical cancer and its underlying mechanism. Here we discover that OLFM4 expression is significantly reduced in metastatic cervical cancer. Accordingly, overexpression of OLFM4 inhibits epithelial–mesenchymal transition (EMT), migration, and invasion in human cervical cancer cells. To further explore its molecular mechanisms, we reveal that OLFM4 augmentation interferes with mTOR signaling pathway, and the suppressive effects of OLFM4 on cell migration and invasion are largely weakened by phosphatidic acid (PA)-induced mTOR signal activation, which implicates the potential role of the mTOR pathway in OLFM4-related cervical metastasis. In conclusion, our results confirm OLFM4 as a tumor suppressor that inhibits cervical cancer metastasis by regulating mTOR signal pathway.
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Affiliation(s)
- Juan Li
- Department of Pathology, Qianfoshan Hospital Affiliated with Shandong University, Jinan, Shandong, P.R. China
| | - Chunyan Liu
- Department of Combined Traditional Chinese and Western Medicine, Medical College of Qingdao University, Qingdao, Shandong, P.R. China
| | - Dawei Li
- Department of Neurology, People's Hospital of Xintai City, Affiliated to Taishan Medical University, Xintai, Shandong, P.R. China
| | - Meng Wan
- Department of Biochemistry and Molecular Biology, Shandong University School of Medicine, Jinan, Shandong, P.R. China
| | - Hong Zhang
- Department of Gynecology, Jinan Women and Children's Health Hospital, Jinan, Shandong, P.R. China
| | - Xiaoxia Zheng
- Department of Gynecology, Jinan Women and Children's Health Hospital, Jinan, Shandong, P.R. China
| | - Xuemei Jie
- Department of Gynecology, Jinan Women and Children's Health Hospital, Jinan, Shandong, P.R. China
| | - Pengju Zhang
- Department of Biochemistry and Molecular Biology, Shandong University School of Medicine, Jinan, Shandong, P.R. China
| | - Jingjing Li
- Cheeloo College of Medicine, Shandong University, Jinan, Shandong, P.R. China
| | - Hongchun Hou
- Department of Gynecology, Jinan Women and Children's Health Hospital, Jinan, Shandong, P.R. China
| | - Qing Sun
- Department of Pathology, Qianfoshan Hospital Affiliated with Shandong University, Jinan, Shandong, P.R. China
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MicroRNA-7 as a potential therapeutic target for aberrant NF-κB-driven distant metastasis of gastric cancer. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2019; 38:55. [PMID: 30728051 PMCID: PMC6364399 DOI: 10.1186/s13046-019-1074-6] [Citation(s) in RCA: 77] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Accepted: 01/30/2019] [Indexed: 12/24/2022]
Abstract
Background Dysregulated miR-7 and aberrant NF-κB activation were reported in various human cancers. However, the expression profile, clinical relevance and dysregulated mechanism of miR-7 and NF-κB RelA/p65 in human gastric cancers (GC) metastasis remain largely unknown. This study is to investigate the expression profile, clinical relevance and dysregulated mechanism of miR-7 and NF-κB RelA/p65 in GC and to explore the potential therapeutic effect of miR-7 to GC distant metastasis. Methods TCGA STAD and NCBI GEO database were used to investigate the expression profile of miR-7 and NF-κB RelA/p65 and clinical relevance. Lentivirus-mediated gene delivery was applied to explore the therapeutic effect of miR-7 in GC. Real-time PCR, FACS, IHC, IF, reporter gene assay, IP, pre-miRNA-7 processing and binding assays were performed. Results Low miR-7 correlated with high RelA/p65 in GC with a clinical relevance that low miR-7 and high RelA/p65 as prognostic indicators of poor survival outcome of GC patients. Moreover, an impaired pre-miR-7 processing caused by dysregulated Dicer1 expression is associated with downregulated miR-7 in GC cells. Functionally, delivery of miR-7 displays therapeutic effects to GC lung and liver metastasis by alleviating hemangiogenesis, lymphangiogenesis as well as inflammation cells infiltration. Mechanistically, miR-7 suppresses NF-κB transcriptional activity and its downstream metastasis-related molecules Vimentin, ICAM-1, VCAM-1, MMP-2, MMP-9 and VEGF by reducing p65 and p-p65-ser536 expression. Pharmacologic prevention of NF-κB activator LPS obviously restored miR-7-suppressed NF-κB transcriptional activation and significantly reverted miR-7-inhibited cell migration and invasion. Conclusions Our data suggest loss of miR-7 in GC promotes p65-mediated aberrant NF-κB activation, facilitating GC metastasis and ultimately resulting in the worse clinical outcome. Thus, miR-7 may act as novel prognostic biomarker and potential therapeutic target for aberrant NF-κB-driven GC distant metastasis. Electronic supplementary material The online version of this article (10.1186/s13046-019-1074-6) contains supplementary material, which is available to authorized users.
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Wang XY, Chen SH, Zhang YN, Xu CF. Olfactomedin-4 in digestive diseases: A mini-review. World J Gastroenterol 2018; 24:1881-1887. [PMID: 29740203 PMCID: PMC5937205 DOI: 10.3748/wjg.v24.i17.1881] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2018] [Revised: 04/06/2018] [Accepted: 04/09/2018] [Indexed: 02/06/2023] Open
Abstract
Olfactomedin-4 (OLFM4, GW112, hGC-1) is a glycoprotein belonging to the olfactomedin family. The expression of OLFM4 is strong in the small intestine, colon and prostate, and moderate in the stomach and bone marrow. Previous studies have revealed that OLFM4 is closely associated with many digestive diseases. Up-regulation of OLFM4 has been detected in the Helicobacter pylori (H. pylori)-infected gastric mucosa, inflammatory bowel disease tissue and gastrointestinal malignancies, including gastric cancer, colorectal cancer, pancreatic cancer and gallbladder cancer. Down-regulation of OLFM4 has also been detected in some cases, such as in poorly differentiated, advanced-stage and metastatic tumors. Studies using OLFM4-deficient mouse models have revealed that OLFM4 acts as a negative regulator of H. pylori-specific immune responses and plays an important role in mucosal defense in inflammatory bowel disease. Patients with OLFM4-positive gastric cancer or colorectal cancer have a better survival rate than OLFM4-negative patients. However, the prognosis is worse in pancreatic cancer patients with high levels of expression of OLFM4. The NF-κB, Notch and Wnt signaling pathways are involved in the regulation of OLFM4 expression in digestive diseases, and its role in pathogenesis is associated with anti-inflammation, apoptosis, cell adhesion and proliferation. OLFM4 may serve as a potential specific diagnostic marker and a therapeutic target in digestive diseases. Further studies are required to explore the clinical value of OLFM4.
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Affiliation(s)
- Xin-Yu Wang
- Department of Gastroenterology, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, Zhejiang Province, China
| | - Sheng-Hui Chen
- Department of Gastroenterology, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, Zhejiang Province, China
| | - Ya-Nan Zhang
- Department of Geriatrics, Zhejiang Provincial People’s Hospital, Hangzhou 310014, Zhejiang Province, China
| | - Cheng-Fu Xu
- Department of Gastroenterology, Key Laboratory of Precision Diagnosis and Treatment for Hepatobiliary and Pancreatic Tumor of Zhejiang Province, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, Zhejiang Province, China
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Christoffersson G, Phillipson M. The neutrophil: one cell on many missions or many cells with different agendas? Cell Tissue Res 2018; 371:415-423. [PMID: 29435651 PMCID: PMC5820408 DOI: 10.1007/s00441-017-2780-z] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Accepted: 12/19/2017] [Indexed: 12/25/2022]
Abstract
The unique role of neutrophils in host defense is not only based on their abilities to kill bacteria but is also due to their abundance in circulation and their ability to quickly migrate and accumulate in great numbers at afflicted sites. The high number of circulating neutrophils is the result of regulated release of new neutrophils from bone marrow as well as from marginated pools to balance their recruitment to tissue. Marginated pools, such as the spleen and lung, have previously been attributed to passively delay neutrophil transit time due to their large capillary network, but recent reports demonstrate that they are comprised of neutrophils with specific functions. The spleen, for instance, holds neutrophil subpopulations at different anatomical locations with distinct functions important for, e.g., bacterial eradication, and the lung was recently shown to re-educate neutrophils that had trafficked from a site of sterile injury to home back to bone marrow for elimination. Further, recent reports demonstrate subpopulations of neutrophils with different actions during homeostasis, infection, tissue restitution and cancer. It is becoming increasingly clear that this cannot be due to different stages of neutrophil activation during their life span but instead points towards distinct subpopulations of neutrophils with different effector functions. Whether these cellular distinctions are due to different education or origin is, however, not yet known. Together, the accumulating information about the heterogeneous neutrophils presents important insights into their role in development of pathologies, as well as revealing novel targets in the form of certain subpopulations to treat disease.
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Affiliation(s)
- Gustaf Christoffersson
- Department of Medical Cell Biology, Uppsala University, Husargatan 3, P.O. Box 571, 751 23, Uppsala, Sweden
| | - Mia Phillipson
- Department of Medical Cell Biology, Uppsala University, Husargatan 3, P.O. Box 571, 751 23, Uppsala, Sweden.
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Mitochondrial GRIM-19 as a potential therapeutic target for STAT3-dependent carcinogenesis of gastric cancer. Oncotarget 2018; 7:41404-41420. [PMID: 27167343 PMCID: PMC5173068 DOI: 10.18632/oncotarget.9167] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2015] [Accepted: 04/11/2016] [Indexed: 01/05/2023] Open
Abstract
Aberrant STAT3 activation occurs in most human gastric cancers (GCs) and contributes to the malignant progression of GC, but mechanism(s) underlying aberrant STAT3 remain largely unknown. Here we demonstrated that the gene associated with retinoid interferon-induced mortality 19 (GRIM-19) was severely depressed or lost in GC and chronic atrophic gastritis (CAG) tissues and its loss contributed to GC tumorigenesis partly by activating STAT3 signaling. In primary human GC tissues, GRIM-19 was frequently depressed or lost and this loss correlated with advanced clinical stage, lymph node metastasis, H. pylori infection and poor overall survival of GC patients. In CAG tissues, GRIM-19 was progressively decreased along with its malignant transformation. Functionally, we indentified an oncogenic role of GRIM-19 loss in promoting GC tumorigenesis. Ectopic GRIM-19 expression suppressed GC tumor formation in vitro and in vivo by inducing cell cycle arrest and apoptosis. Moreover, we revealed that GRIM-19 inhibited STAT3 transcriptional activation and its downstream targets by reducing STAT3 nuclear distribution. Conversely, knockdown of GRIM-19 induced aberrant STAT3 activation and accelerated GC cell growth in vitro and in vivo, and this could be partly attenuated by the blockage of STAT3 activation. In addition, we observed subcellular redistributions of GRIM-19 characterized by peri-nuclear aggregates, non-mitochondria cytoplasmic distribution and nuclear invasion, which should be responsible for reduced STAT3 nuclear distribution. Our studies suggest that mitochondrial GRIM-19 could not only serve as an valuable prognostic biomarker for GC development, but also as a potential therapeutic target for STAT3-dependent carcinogenesis of GC.
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Liu C, Guo Y, Wu W, Zhang Z, Xu L, Wu K, Hu W, Liu G, Shi J, Xu C, Bi J, Sheng Y. Plasma olfactomedin 4 level in peripheral blood and its association with clinical features of breast cancer. Oncol Lett 2017; 14:8106-8113. [PMID: 29344255 DOI: 10.3892/ol.2017.7193] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Accepted: 08/15/2017] [Indexed: 01/06/2023] Open
Abstract
The present study aimed to investigate the expression of olfactomedin 4 (OLFM4) in plasma of patients with breast cancer and its association with diagnosis, metastasis and prognosis of breast cancer. OLFM4 gene expression level of peripheral blood plasma in 60 patients with breast cancer and 26 healthy donors was examined by ELISA. The expression of OLFM4 in tumor tissues of patients with breast cancer was evaluated by immunohistochemistry (protein expression) and reverse transcription-quantitative polymerase chain reaction (mRNA expression), respectively. Circulating tumor cells (CTCs) were detected in a certain set of patients. The expression of OLFM4 in plasma of the overall healthy people was higher compared with patients with breast cancer. The plasma OLFM4 level in patients with breast cancer was consistent with the expression of OLFM4 protein in tumor tissues (R2=1), indicating that the level of plasma OLFM4 expression may represent the expression of OLFM4 in breast cancer tissues. The plasma OLFM4 level in patients with histological grade I was significantly lower compared with grade III (P<0.05). Breast cancer patients with positive CTC were associated with low level of plasma OLFM4. These results suggest that low OLFM4 expression in plasma or tissue specimens of breast cancer patients is more likely to represent low histological differentiation and decreased invasive/metastatic capabilities. Taken together, plasma OLFM4 level may be considered as a biomarker for diagnosis and prognosis of breast cancer for cases where there are difficulties in obtaining tumor tissue samples.
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Affiliation(s)
- Chaoqian Liu
- Department of Breast Surgery, Changhai Hospital, Second Military Medical University, Shanghai 200433, P.R. China
| | - Yan Guo
- Department of Endocrinology, Changhai Hospital, Second Military Medical University, Shanghai 200433, P.R. China
| | - Weiwei Wu
- Biotecan Medical Diagnostics Co., Ltd, Zhangjiang Center for Translational Medicine, Shanghai 200120, P.R. China
| | - Zhenzhen Zhang
- Department of Breast Surgery, Changhai Hospital, Second Military Medical University, Shanghai 200433, P.R. China.,Biotecan Medical Diagnostics Co., Ltd, Zhangjiang Center for Translational Medicine, Shanghai 200120, P.R. China
| | - Lu Xu
- Department of Breast Surgery, Changhai Hospital, Second Military Medical University, Shanghai 200433, P.R. China
| | - Kainan Wu
- Department of Breast Surgery, Changhai Hospital, Second Military Medical University, Shanghai 200433, P.R. China
| | - Wei Hu
- Department of Breast Surgery, Changhai Hospital, Second Military Medical University, Shanghai 200433, P.R. China
| | - Guoping Liu
- Department of Breast Surgery, Changhai Hospital, Second Military Medical University, Shanghai 200433, P.R. China
| | - Junyi Shi
- Department of Breast Surgery, Changhai Hospital, Second Military Medical University, Shanghai 200433, P.R. China
| | - Cheng Xu
- Biotecan Medical Diagnostics Co., Ltd, Zhangjiang Center for Translational Medicine, Shanghai 200120, P.R. China
| | - Jianwei Bi
- Department of General Surgery, Changhai Hospital, Second Military Medical University, Shanghai 200433, P.R. China
| | - Yuan Sheng
- Department of Breast Surgery, Changhai Hospital, Second Military Medical University, Shanghai 200433, P.R. China
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Abstract
Olfactomedin 4 (OLFM4) is an olfactomedin domain-containing glycoprotein. Multiple signaling pathways and factors, including NF-κB, Wnt, Notch, PU.1, retinoic acids, estrogen receptor, and miR-486, regulate its expression. OLFM4 interacts with several other proteins, such as gene associated with retinoic-interferon-induced mortality 19 (GRIM-19), cadherins, lectins, nucleotide oligomerization domain-1 (NOD1) and nucleotide oligomerization domain-2 (NOD2), and cathepsins C and D, known to regulate important cellular functions. Recent investigations using Olfm4-deficient mouse models have provided important clues about its in vivo biological functions. Olfm4 inhibited Helicobacter pylori-induced NF-κB pathway activity and inflammation and facilitated H. pylori colonization in the mouse stomach. Olfm4-deficient mice exhibited enhanced immunity against Escherichia coli and Staphylococcus aureus infection. Olfm4 deletion in a chronic granulomatous disease mouse model rescued them from S. aureus infection. Olfm4 deletion in mice treated with azoxymethane/dextran sodium sulfate led to robust intestinal inflammation and intestinal crypt hyperplasia. Olfm4 deletion in Apc (Min/+) mice promoted intestinal polyp formation as well as adenocarcinoma development in the distal colon. Further, Olfm4-deficient mice spontaneously developed prostatic epithelial lesions as they age. OLFM4 expression is correlated with cancer differentiation, stage, metastasis, and prognosis in a variety of cancers, suggesting its potential clinical value as an early-stage cancer marker or a therapeutic target. Collectively, these data suggest that OLFM4 plays important roles in innate immunity against bacterial infection, gastrointestinal inflammation, and cancer. In this review, we have summarized OLFM4's initial characterization, expression, regulation, protein interactions, and biological functions.
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Guo LL, He ZC, Yang CQ, Qiao PT, Yin GL. Epigenetic silencing of olfactomedin-4 enhances gastric cancer cell invasion via activation of focal adhesion kinase signaling. BMB Rep 2016; 48:630-5. [PMID: 26303970 PMCID: PMC4911205 DOI: 10.5483/bmbrep.2015.48.11.130] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2015] [Indexed: 01/17/2023] Open
Abstract
Downregulation of olfactomedin-4 (OLFM4) is associated with tumor progression, lymph node invasion and metastases. However, whether or not downregulation of OLFM4 is associated with epigenetic silencing remains unknown. In this study, we investigate the role of OLFM4 in gastric cancer cell invasion. We confirm the previous result that OLFM4 expression is increased in gastric cancer tissues and decreases with an increasing number of metastatic lymph nodes, which are associated with OLFM4 promoter hypermethylation. Overexpression of OLFM4 in gastric cancer cells had an inhibitory effect on cell invasion. Furthermore, we found that focal adhesion kinase (FAK) was negatively correlated with OLFM4 in regards to lymph node metastasis in gastric cancer tissues. Also, inhibition of FAK induced by OLFM4 knockdown resulted in a decrease in cell invasion. Thus, our study demonstrates that epigenetic silencing of OLFM4 enhances gastric cancer cell invasion via activation of FAK signaling. [BMB Reports 2015; 48(11): 630-635]
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Affiliation(s)
- Li-Li Guo
- Department of Gastroenterology, Heping Hospital, Changzhi Medical College, Changzhi, Shanxi 046000, China
| | - Zhao-Cai He
- Department of General Surgery, Heping Hospital, Changzhi Medical College, Changzhi, Shanxi 046000, China
| | - Chang-Qing Yang
- Department of Gastroenterology, Heping Hospital, Changzhi Medical College, Changzhi, Shanxi 046000, China
| | - Pei-Tang Qiao
- Department of Gastroenterology, Heping Hospital, Changzhi Medical College, Changzhi, Shanxi 046000, China
| | - Guo-Ling Yin
- Department of radiotherapy, Heping Hospital, Changzhi Medical College, Changzhi, Shanxi 046000, China
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30
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Sarkar A, Huebner AJ, Sulahian R, Anselmo A, Xu X, Flattery K, Desai N, Sebastian C, Yram MA, Arnold K, Rivera M, Mostoslavsky R, Bronson R, Bass AJ, Sadreyev R, Shivdasani RA, Hochedlinger K. Sox2 Suppresses Gastric Tumorigenesis in Mice. Cell Rep 2016; 16:1929-41. [PMID: 27498859 DOI: 10.1016/j.celrep.2016.07.034] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Revised: 03/22/2016] [Accepted: 07/14/2016] [Indexed: 01/10/2023] Open
Abstract
Sox2 expression marks gastric stem and progenitor cells, raising important questions regarding the genes regulated by Sox2 and the role of Sox2 itself during stomach homeostasis and disease. By using ChIP-seq analysis, we have found that the majority of Sox2 targets in gastric epithelial cells are tissue specific and related to functions such as endoderm development, Wnt signaling, and gastric cancer. Unexpectedly, we found that Sox2 itself is dispensable for gastric stem cell and epithelial self-renewal, yet Sox2(+) cells are highly susceptible to tumorigenesis in an Apc/Wnt-driven mouse model. Moreover, Sox2 loss enhances, rather than impairs, tumor formation in Apc-deficient gastric cells in vivo and in vitro by inducing Tcf/Lef-dependent transcription and upregulating intestinal metaplasia-associated genes, providing a mechanistic basis for the observed phenotype. Together, these data identify Sox2 as a context-dependent tumor suppressor protein that is dispensable for normal tissue regeneration but restrains stomach adenoma formation through modulation of Wnt-responsive and intestinal genes.
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Affiliation(s)
- Abby Sarkar
- Cancer Center and Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA 02114, USA; Department of Molecular Biology, Massachusetts General Hospital, Boston, MA 02114, USA; Harvard Stem Cell Institute, Cambridge, MA 02138, USA; Howard Hughes Medical Institute and Department of Stem Cell and Regenerative Biology, 7 Divinity Avenue, Harvard University, Cambridge, MA 02138, USA
| | - Aaron J Huebner
- Cancer Center and Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA 02114, USA; Department of Molecular Biology, Massachusetts General Hospital, Boston, MA 02114, USA; Harvard Stem Cell Institute, Cambridge, MA 02138, USA; Howard Hughes Medical Institute and Department of Stem Cell and Regenerative Biology, 7 Divinity Avenue, Harvard University, Cambridge, MA 02138, USA
| | - Rita Sulahian
- Harvard Stem Cell Institute, Cambridge, MA 02138, USA; Department of Medicine, Harvard Medical School, Boston, MA 02115, USA; Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02115, USA
| | - Anthony Anselmo
- Department of Molecular Biology, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Xinsen Xu
- Department of Medicine, Harvard Medical School, Boston, MA 02115, USA; Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02115, USA
| | - Kyle Flattery
- Cancer Center and Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA 02114, USA; Department of Molecular Biology, Massachusetts General Hospital, Boston, MA 02114, USA; Harvard Stem Cell Institute, Cambridge, MA 02138, USA; Howard Hughes Medical Institute and Department of Stem Cell and Regenerative Biology, 7 Divinity Avenue, Harvard University, Cambridge, MA 02138, USA
| | - Niyati Desai
- Division of Pathology, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Carlos Sebastian
- Cancer Center and Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Mary Anna Yram
- Cancer Center and Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA 02114, USA; Department of Molecular Biology, Massachusetts General Hospital, Boston, MA 02114, USA; Harvard Stem Cell Institute, Cambridge, MA 02138, USA; Howard Hughes Medical Institute and Department of Stem Cell and Regenerative Biology, 7 Divinity Avenue, Harvard University, Cambridge, MA 02138, USA
| | - Katrin Arnold
- Cancer Center and Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA 02114, USA; Department of Molecular Biology, Massachusetts General Hospital, Boston, MA 02114, USA; Harvard Stem Cell Institute, Cambridge, MA 02138, USA; Howard Hughes Medical Institute and Department of Stem Cell and Regenerative Biology, 7 Divinity Avenue, Harvard University, Cambridge, MA 02138, USA
| | - Miguel Rivera
- Division of Pathology, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Raul Mostoslavsky
- Cancer Center and Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Roderick Bronson
- Department of Pathology, Harvard Medical School, Boston, MA 02115, USA
| | - Adam J Bass
- Department of Medicine, Harvard Medical School, Boston, MA 02115, USA; Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02115, USA
| | - Ruslan Sadreyev
- Department of Molecular Biology, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Ramesh A Shivdasani
- Harvard Stem Cell Institute, Cambridge, MA 02138, USA; Department of Medicine, Harvard Medical School, Boston, MA 02115, USA; Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02115, USA
| | - Konrad Hochedlinger
- Cancer Center and Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA 02114, USA; Department of Molecular Biology, Massachusetts General Hospital, Boston, MA 02114, USA; Harvard Stem Cell Institute, Cambridge, MA 02138, USA; Howard Hughes Medical Institute and Department of Stem Cell and Regenerative Biology, 7 Divinity Avenue, Harvard University, Cambridge, MA 02138, USA.
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31
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Zhao J, Shu P, Duan F, Wang X, Min L, Shen Z, Ruan Y, Qin J, Sun Y, Qin X. Loss of OLFM4 promotes tumor migration through inducing interleukin-8 expression and predicts lymph node metastasis in early gastric cancer. Oncogenesis 2016; 5:e234. [PMID: 27294866 PMCID: PMC4945743 DOI: 10.1038/oncsis.2016.42] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Revised: 01/15/2016] [Accepted: 05/11/2016] [Indexed: 12/26/2022] Open
Abstract
Endoscopic surgery is increasingly used for early gastric cancer (EGC) treatment worldwide, and lymph node metastasis remains the most important risk factor for endoscopic surgery in EGC patients. Olfactomedin 4 (OLFM4) is mainly expressed in the digestive system and upregulated in several types of tumors. However, the role of OLFM4 in EGC has not been explored. We evaluated OLFM4 expression by immunohistochemical staining in 105 patients with EGC who underwent gastrectomy. The clinicopathological factors and OLFM4 expression were co-analyzed to predict lymph node metastasis in EGC. The metastatic mechanism of OLFM4 in gastric cancer was also investigated. We found that OLFM4 was upregulated in EGC tumor sections, and relatively low expression of OLFM4 was observed in patients with lymph node metastasis. OLFM4 expression as well as tumor size and differentiation were identified as independent factors, which could be co-analyzed to generate a better model for predicting lymph node metastasis in EGC patients. In vitro studies revealed that knockdown of OLFM4 promoted the migration of gastric cancer cells through activating the NF-κB/interleukin-8 axis. Negative correlation between OLFM4 and interleukin-8 expression was also observed in EGC tumor samples. Our study implies that OLFM4 expression is a potential predictor of lymph node metastasis in EGC, and combing OLFM4 with tumor size and differentiation could better stratify EGC patients with different risks of lymph node metastasis.
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Affiliation(s)
- J Zhao
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - P Shu
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - F Duan
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China.,Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - X Wang
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - L Min
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Z Shen
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Y Ruan
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - J Qin
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Y Sun
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - X Qin
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
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Suknuntha K, Ishii Y, Tao L, Hu K, McIntosh BE, Yang D, Swanson S, Stewart R, Wang JYJ, Thomson J, Slukvin I. Discovery of survival factor for primitive chronic myeloid leukemia cells using induced pluripotent stem cells. Stem Cell Res 2015; 15:678-693. [PMID: 26561938 PMCID: PMC5003778 DOI: 10.1016/j.scr.2015.10.015] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Accepted: 10/22/2015] [Indexed: 01/08/2023] Open
Abstract
A definitive cure for chronic myeloid leukemia (CML) requires identifying novel therapeutic targets to eradicate leukemia stem cells (LSCs). However, the rarity of LSCs within the primitive hematopoietic cell compartment remains a major limiting factor for their study in humans. Here we show that primitive hematopoietic cells with typical LSC features, including adhesion defect, increased long-term survival and proliferation, and innate resistance to tyrosine kinase inhibitor (TKI) imatinib, can be generated de novo from reprogrammed primary CML cells. Using CML iPSC-derived primitive leukemia cells, we discovered olfactomedin 4 (OLFM4) as a novel factor that contributes to survival and growth of somatic lin(-)CD34(+) cells from bone marrow of patients with CML in chronic phase, but not primitive hematopoietic cells from normal bone marrow. Overall, this study shows the feasibility and advantages of using reprogramming technology to develop strategies for targeting primitive leukemia cells.
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Affiliation(s)
- Kran Suknuntha
- Department of Pathology and Laboratory Medicine, University of Wisconsin, Madison, WI 53792, United States
| | - Yuki Ishii
- Department of Medicine, Moores Cancer Center, School of Medicine, University of California, San Diego, La Jolla, CA 92093-0820, United States
| | - Lihong Tao
- Wisconsin National Primate Research Center, University of Wisconsin, Madison, WI 53715, United States
| | - Kejin Hu
- Wisconsin National Primate Research Center, University of Wisconsin, Madison, WI 53715, United States
| | - Brian E McIntosh
- Morgridge Institute for Research, Madison, WI 53707, United States
| | - David Yang
- Department of Pathology and Laboratory Medicine, University of Wisconsin, Madison, WI 53792, United States
| | - Scott Swanson
- Morgridge Institute for Research, Madison, WI 53707, United States
| | - Ron Stewart
- Morgridge Institute for Research, Madison, WI 53707, United States
| | - Jean Y J Wang
- Department of Medicine, Moores Cancer Center, School of Medicine, University of California, San Diego, La Jolla, CA 92093-0820, United States
| | - James Thomson
- Morgridge Institute for Research, Madison, WI 53707, United States; Department of Cell and Regenerative Biology, School of Medicine and Public Health, University of Wisconsin, Madison, WI 53707, United States; Department of Molecular, Cellular & Developmental Biology, University of California, Santa Barbara, CA 93106, United States
| | - Igor Slukvin
- Department of Pathology and Laboratory Medicine, University of Wisconsin, Madison, WI 53792, United States; Wisconsin National Primate Research Center, University of Wisconsin, Madison, WI 53715, United States.
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33
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Holik AZ, Young M, Krzystyniak J, Williams GT, Metzger D, Shorning BY, Clarke AR. Brg1 loss attenuates aberrant wnt-signalling and prevents wnt-dependent tumourigenesis in the murine small intestine. PLoS Genet 2014; 10:e1004453. [PMID: 25010414 PMCID: PMC4091792 DOI: 10.1371/journal.pgen.1004453] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2014] [Accepted: 05/07/2014] [Indexed: 01/19/2023] Open
Abstract
Tumourigenesis within the intestine is potently driven by deregulation of the Wnt pathway, a process epigenetically regulated by the chromatin remodelling factor Brg1. We aimed to investigate this interdependency in an in vivo setting and assess the viability of Brg1 as a potential therapeutic target. Using a range of transgenic approaches, we deleted Brg1 in the context of Wnt-activated murine small intestinal epithelium. Pan-epithelial loss of Brg1 using VillinCreERT2 and AhCreERT transgenes attenuated expression of Wnt target genes, including a subset of stem cell-specific genes and suppressed Wnt-driven tumourigenesis improving animal survival. A similar increase in survival was observed when Wnt activation and Brg1 loss were restricted to the Lgr5 expressing intestinal stem cell population. We propose a mechanism whereby Brg1 function is required for aberrant Wnt signalling and ultimately for the maintenance of the tumour initiating cell compartment, such that loss of Brg1 in an Apc-deficient context suppresses adenoma formation. Our results highlight potential therapeutic value of targeting Brg1 and serve as a proof of concept that targeting the cells of origin of cancer may be of therapeutic relevance.
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Affiliation(s)
- Aliaksei Z. Holik
- Cardiff School of Biosciences, Cardiff University, Cardiff, United Kingdom
- Stem Cells and Cancer Division, The Walter and Eliza Hall Institute of Medical Research, Melbourne, Australia
| | - Madeleine Young
- Cardiff School of Biosciences, Cardiff University, Cardiff, United Kingdom
| | - Joanna Krzystyniak
- Cardiff School of Biosciences, Cardiff University, Cardiff, United Kingdom
| | | | - Daniel Metzger
- IGBMC, CNRS UMR7104/INSERM U964/Université de Strasbourg, Illkirch, France
| | - Boris Y. Shorning
- Cardiff School of Biosciences, Cardiff University, Cardiff, United Kingdom
| | - Alan R. Clarke
- Cardiff School of Biosciences, Cardiff University, Cardiff, United Kingdom
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34
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Anholt RRH. Olfactomedin proteins: central players in development and disease. Front Cell Dev Biol 2014; 2:6. [PMID: 25364714 PMCID: PMC4206993 DOI: 10.3389/fcell.2014.00006] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Accepted: 02/07/2014] [Indexed: 12/14/2022] Open
Abstract
Olfactomedin proteins are characterized by a conserved domain of \texorpdfstring~\textasciitilde250 amino acids corresponding to the olfactomedin archetype first discovered in olfactory neuroepithelium. They arose early in evolution and occur throughout the animal kingdom. In mice and humans olfactomedin proteins comprise a diverse array of glycoproteins, many of which are critical for early development and functional organization of the nervous system as well as hematopoiesis. Olfactomedin domains appear to facilitate protein-protein interactions, intercellular interactions, and cell adhesion. Several members of the family have been implicated in various common diseases, notably myocilin in glaucoma and OLFM4 in cancer. This review highlights this important, hitherto understudied family of proteins.
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Affiliation(s)
- Robert R H Anholt
- Department of Biological Sciences and W. M. Keck Center for Behavioral Biology, North Carolina State University Raleigh, NC, USA
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Orwig SD, Chi PV, Du Y, Hill SE, Cavitt MA, Suntharalingam A, Turnage KC, Dickey CA, France S, Fu H, Lieberman RL. Ligands for glaucoma-associated myocilin discovered by a generic binding assay. ACS Chem Biol 2014; 9:517-25. [PMID: 24279319 DOI: 10.1021/cb4007776] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Mutations in the olfactomedin domain of myocilin (myoc-OLF) are the strongest link to inherited primary open angle glaucoma. In this recently identified protein misfolding disorder, aggregation-prone disease variants of myocilin hasten glaucoma-associated elevation of intraocular pressure, leading to vision loss. Despite its well-documented pathogenic role, myocilin remains a domain of unknown structure or function. Here we report the first small-molecule ligands that bind to the native state of myoc-OLF. To discover these molecules, we designed a general label-free, mix-and-measure, high throughput chemical assay for restabilization (CARS), which is likely readily adaptable to discover ligands for other proteins. Of the 14 hit molecules identified from screening myoc-OLF against the Sigma-Aldrich Library of Pharmacologically Active Compounds using CARS, surface plasmon resonance binding studies reveal three are stoichiometric ligand scaffolds with low micromolar affinity. Two compounds, GW5074 and apigenin, inhibit myoc-OLF amyloid formation in vitro. Structure-activity relationship-based soluble derivatives reduce aggregation in vitro as well as enhance secretion of full-length mutant myocilin in a cell culture model. Our compounds set the stage for a new chemical probe approach to clarify the biological function of wild-type myocilin and represent lead therapeutic compounds for diminishing intracellular sequestration of toxic mutant myocilin.
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Affiliation(s)
- Susan D. Orwig
- School of Chemistry & Biochemistry, Georgia Institute of Technology, 901 Atlantic Drive NW, Atlanta, Georgia 30332-0400, United States
| | - Pamela V. Chi
- School of Chemistry & Biochemistry, Georgia Institute of Technology, 901 Atlantic Drive NW, Atlanta, Georgia 30332-0400, United States
| | - Yuhong Du
- Department
of Pharmacology, Emory University School of Medicine, 1510 Clifton
Road, Atlanta, Georgia 30322, United States
| | - Shannon E. Hill
- School of Chemistry & Biochemistry, Georgia Institute of Technology, 901 Atlantic Drive NW, Atlanta, Georgia 30332-0400, United States
| | - Marchello A. Cavitt
- School of Chemistry & Biochemistry, Georgia Institute of Technology, 901 Atlantic Drive NW, Atlanta, Georgia 30332-0400, United States
| | - Amrithaa Suntharalingam
- Department
of Molecular Medicine and Byrd Alzheimer’s Research Institute, University of South Florida, 4001 E. Fletcher Ave. Tampa, Florida 33613, United States
| | - Katherine C. Turnage
- School of Chemistry & Biochemistry, Georgia Institute of Technology, 901 Atlantic Drive NW, Atlanta, Georgia 30332-0400, United States
| | - Chad A. Dickey
- Department
of Molecular Medicine and Byrd Alzheimer’s Research Institute, University of South Florida, 4001 E. Fletcher Ave. Tampa, Florida 33613, United States
| | - Stefan France
- School of Chemistry & Biochemistry, Georgia Institute of Technology, 901 Atlantic Drive NW, Atlanta, Georgia 30332-0400, United States
| | - Haian Fu
- Department
of Pharmacology, Emory University School of Medicine, 1510 Clifton
Road, Atlanta, Georgia 30322, United States
| | - Raquel L. Lieberman
- School of Chemistry & Biochemistry, Georgia Institute of Technology, 901 Atlantic Drive NW, Atlanta, Georgia 30332-0400, United States
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Zhang Z, Huang J. Intestinal stem cells - types and markers. Cell Biol Int 2013; 37:406-14. [PMID: 23471862 DOI: 10.1002/cbin.10049] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2012] [Accepted: 12/31/2012] [Indexed: 01/12/2023]
Abstract
Intestinal epithelium is a rapidly cycling tissue, always renewing every 4-5 days under normal conditions, which is maintained by intestinal stem cells (ISCs). Using the fluorescence labelling trace, ISCs can be divided into two different types: active intestinal stem cells (A-ISCs) located in bottom of the intestinal crypt and the quiescent intestinal stem cells (Q-ISCs) in the +4 position of the crypt. There is a complex signal regulation net between the ISCs and other intestinal cells, such as Wnt and Notch pathways. ISCs have an intimate relationship with the colorectal cancer (CRC). However, a deficiency of stem cells markers severely limits research on the biological characteristics of ISCs. We have reviewed several ISCs markers, including Lgr5, PHLDA1, Bmi1 and Lrig1. These markers have widely different biological functions, but also have a close relationship with cancers, especially CRC. Our hypothesis concerns the reasons for ISCs having two distinct types and why endless ISCs markers have emerged.
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Affiliation(s)
- Zhigang Zhang
- Cancer Institute, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China.
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Panossian A, Hamm R, Kadioglu O, Wikman G, Efferth T. Synergy and Antagonism of Active Constituents of ADAPT-232 on Transcriptional Level of Metabolic Regulation of Isolated Neuroglial Cells. Front Neurosci 2013; 7:16. [PMID: 23430930 PMCID: PMC3576868 DOI: 10.3389/fnins.2013.00016] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2012] [Accepted: 02/01/2013] [Indexed: 12/16/2022] Open
Abstract
Gene expression profiling was performed on the human neuroglial cell line T98G after treatment with adaptogen ADAPT-232 and its constituents – extracts of Eleutherococcus senticosus root, Schisandra chinensis berry, and Rhodiola rosea root as well as several constituents individually, namely, eleutheroside E, schizandrin B, salidroside, triandrin, and tyrosol. A common feature for all tested adaptogens was their effect on G-protein-coupled receptor signaling pathways, i.e., cAMP, phospholipase C (PLC), and phosphatidylinositol signal transduction pathways. Adaptogens may reduce the cAMP level in brain cells by down-regulation of adenylate cyclase gene ADC2Y and up-regulation of phosphodiesterase gene PDE4D that is essential for energy homeostasis as well as for switching from catabolic to anabolic states and vice versa. Down-regulation of cAMP by adaptogens may decrease cAMP-dependent protein kinase A activity in various cells resulting in inhibition stress-induced catabolic transformations and saving of ATP for many ATP-dependant metabolic transformations. All tested adaptogens up-regulated the PLCB1 gene, which encodes phosphoinositide-specific PLC and phosphatidylinositol 3-kinases (PI3Ks), key players for the regulation of NF-κB-mediated defense responses. Other common targets of adaptogens included genes encoding ERα estrogen receptor (2.9–22.6 fold down-regulation), cholesterol ester transfer protein (5.1–10.6 fold down-regulation), heat shock protein Hsp70 (3.0–45.0 fold up-regulation), serpin peptidase inhibitor (neuroserpin), and 5-HT3 receptor of serotonin (2.2–6.6 fold down-regulation). These findings can be reconciled with the observed beneficial effects of adaptogens in behavioral, mental, and aging-associated disorders. Combining two or more active substances in one mixture significantly changes deregulated genes profiles: synergetic interactions result in activation of genes that none of the individual substances affected, while antagonistic interactions result in suppression some genes activated by individual substances. These interactions can have an influence on transcriptional control of metabolic regulation both on the cellular level and the level of the whole organism. Merging of deregulated genes array profiles and intracellular networks is specific to the new substance with unique pharmacological characteristics. Presumably, this phenomenon could be used to eliminate undesirable effects (e.g., toxic effects) and increase the selectivity of pharmacological intervention.
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Donegan RK, Hill SE, Turnage KC, Orwig SD, Lieberman RL. The glaucoma-associated olfactomedin domain of myocilin is a novel calcium binding protein. J Biol Chem 2012; 287:43370-7. [PMID: 23129764 DOI: 10.1074/jbc.m112.408906] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Myocilin is a protein found in the trabecular meshwork extracellular matrix tissue of the eye that plays a role in regulating intraocular pressure. Both wild-type and certain myocilin variants containing mutations in the olfactomedin (OLF) domain are linked to the optic neuropathy glaucoma. Because calcium ions are important biological cofactors that play numerous roles in extracellular matrix proteins, we examined the calcium binding properties of the myocilin OLF domain (myoc-OLF). Our study reveals an unprecedented high affinity calcium binding site within myoc-OLF. The calcium ion remains bound to wild-type OLF at neutral and acidic pH. A glaucoma-causing OLF variant, myoc-OLF(D380A), is calcium-depleted. Key differences in secondary and tertiary structure between myoc-OLF(D380A) and wild-type myoc-OLF, as well as limited access to chelators, indicate that the calcium binding site is largely buried in the interior of the protein. Analysis of six conserved aspartate or glutamate residues and an additional 18 disease-causing variants revealed two other candidate residues that may be involved in calcium coordination. Our finding expands our knowledge of calcium binding in extracellular matrix proteins; provides new clues into domain structure, function, and pathogenesis for myocilin; and offers insights into highly conserved, biomedically relevant OLF domains.
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Affiliation(s)
- Rebecca K Donegan
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, USA
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Anand H, Misro MM, Sharma SB, Prakash S. siRNA as a tool to delineate pathway channelization in H2O2 induced apoptosis of primary Leydig cells in vitro. Apoptosis 2012; 17:1131-43. [DOI: 10.1007/s10495-012-0749-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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