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Mudambi S, Fitzgerald ME, Washington DL, Pera PJ, Huss WJ, Paragh G. Dual targeting of KDM1A and antioxidants is an effective anticancer strategy. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.06.12.597953. [PMID: 38915482 PMCID: PMC11195178 DOI: 10.1101/2024.06.12.597953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/26/2024]
Abstract
Lysine Specific Demethylase 1 (KDM1A / LSD1) regulates mitochondrial respiration and stabilizes HIF-1A (hypoxia-inducible factor 1A). HIF-1A modulates reactive oxygen species (ROS) levels by increasing cellular glucose uptake, glycolysis, and endogenous antioxidants. The role of KDM1A in cellular ROS response has not previously been described. We determined the role of KDM1A in regulating the ROS response and the utility of KDM1A inhibitors in combination with ROS-inducing cancer therapies. Our results show that KDM1A inhibition sensitized cells to oxidative stress and increased total cellular ROS, which was mitigated by treatment with the antioxidant N-acetyl cysteine. KDM1A inhibition decreased basal mitochondrial respiration and impaired induction of HIF-1A after ROS exposure. Overexpression of HIF-1A salvaged cells from KDM1A inhibition enhanced sensitivity to ROS. Thus we found that increased sensitivity of ROS after KDM1A inhibition was mediated by HIF-1A and depletion of endogenous glutathione. We also show that KDM1A-specific inhibitor bizine synergized with antioxidant-depleting therapies, buthionine sulfoximine, and auranofin in rhabdomyosarcoma cell lines (Rh28 and Rh30). In this study, we describe a novel role for KDM1A in regulating HIF-1A functions under oxidative stress and found that dual targeting of KDM1A and antioxidant systems may serve as an effective combination anticancer strategy.
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Affiliation(s)
- Shaila Mudambi
- Department of Cell Stress Biology, Roswell Park Cancer Institute, Elm and Carlton Streets, Buffalo, NY, United States 14263
- Department of Dermatology, Roswell Park Cancer Institute, Elm and Carlton Streets, Buffalo, NY, United States 14263
| | - Megan E Fitzgerald
- Department of Cell Stress Biology, Roswell Park Cancer Institute, Elm and Carlton Streets, Buffalo, NY, United States 14263
- Department of Dermatology, Roswell Park Cancer Institute, Elm and Carlton Streets, Buffalo, NY, United States 14263
| | - Deschana L Washington
- Department of Cell Stress Biology, Roswell Park Cancer Institute, Elm and Carlton Streets, Buffalo, NY, United States 14263
| | - Paula J Pera
- Department of Cell Stress Biology, Roswell Park Cancer Institute, Elm and Carlton Streets, Buffalo, NY, United States 14263
- Department of Dermatology, Roswell Park Cancer Institute, Elm and Carlton Streets, Buffalo, NY, United States 14263
| | - Wendy J Huss
- Department of Cell Stress Biology, Roswell Park Cancer Institute, Elm and Carlton Streets, Buffalo, NY, United States 14263
- Department of Dermatology, Roswell Park Cancer Institute, Elm and Carlton Streets, Buffalo, NY, United States 14263
| | - Gyorgy Paragh
- Department of Cell Stress Biology, Roswell Park Cancer Institute, Elm and Carlton Streets, Buffalo, NY, United States 14263
- Department of Dermatology, Roswell Park Cancer Institute, Elm and Carlton Streets, Buffalo, NY, United States 14263
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Ding Z, Han J, Huang Q, Liu X, Sun D, Sui X, Zhuang Q, Wu G. Phosphatidylethanolamine (18:2e/18:2) may inhibit adipose tissue wasting in patients with cancer cachexia by increasing lysophosphatidic acid receptor 6. Nutrition 2024; 120:112356. [PMID: 38354460 DOI: 10.1016/j.nut.2024.112356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 12/17/2023] [Accepted: 01/05/2024] [Indexed: 02/16/2024]
Abstract
BACKGROUND Cancer associated cachexia is characterized by the significant loss of adipose tissue, leading to devastating weight loss and muscle wasting in the majority of cancer patients. The effects and underlying mechanisms of degradation metabolites on adipocytes in cachectic patients remain poorly understood. To address this knowledge gap, we conducted a comprehensive study combining lipidomic analysis of subcutaneous and visceral adipose tissue with transcriptomics data from the database to investigate the mechanisms of lipid regulation in adipocytes. METHODS We collected subcutaneous and visceral adipose tissue samples from cachectic and noncachectic cancer patients. Lipidomic analysis was performed to identify differentially expressed lipids in both types of adipose tissue. Additionally, transcriptomics data from the GEO database were analyzed to explore gene expression patterns in adipocytes. Bioinformatics analysis was employed to determine the enrichment of differentially expressed genes in specific pathways. Furthermore, molecular docking studies were conducted to predict potential protein targets of specific lipids, with a focus on the PI3K-Akt signaling pathway. Western blot analysis was used to validate protein levels of the identified target gene, lysophosphatidic acid receptor 6 (LPAR6), in subcutaneous and visceral adipose tissue from cachectic and noncachectic patients. RESULTS Significant lipid differences in subcutaneous and visceral adipose tissue between cachectic and noncachectic patients were identified by multivariate statistical analysis. Cachectic patients exhibited elevated Ceramides levels and reduced CerG2GNAc1 levels (P < 0.05). A total of 10 shared lipids correlated with weight loss and IL-6 levels, enriched in Sphingolipid metabolism, GPI-anchor biosynthesis, and Glyceropholipid metabolism pathways. LPAR6 expression was significantly elevated in both adipose tissues of cachectic patients (P < 0.05). Molecular docking analysis indicated strong binding of Phosphatidylethanolamine (PE) (18:2e/18:2) to LPAR6. CONCLUSIONS Our findings suggest that specific lipids, including PE(18:2e/18:2), may mitigate adipose tissue wasting in cachexia by modulating the expression of LPAR6 through the PI3K-Akt signaling pathway. The identification of these potential targets and mechanisms provides a foundation for future investigations and therapeutic strategies to combat cachexia. By understanding the underlying lipid regulation in adipocytes, we aim to develop targeted interventions to ameliorate the devastating impact of cachexia on patient outcomes and quality of life. Nevertheless, further studies and validation are warranted to fully elucidate the intricate mechanisms involved and translate these findings into effective clinical interventions.
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Affiliation(s)
- Zuoyou Ding
- Department of General Surgery, Zhongshan Hospital of Fudan University, Shanghai, China
| | - Jun Han
- Department of General Surgery, Zhongshan Hospital of Fudan University, Shanghai, China
| | - Qiuyue Huang
- Department of General Surgery, Zhongshan Hospital of Fudan University, Shanghai, China
| | - Xiao Liu
- Department of Nursing, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Diya Sun
- Department of General Surgery, Zhongshan Hospital of Fudan University, Shanghai, China
| | - Xiangyu Sui
- Department of General Surgery, Zhongshan Hospital of Fudan University, Shanghai, China
| | - Qiulin Zhuang
- Department of General Surgery, Zhongshan Hospital of Fudan University, Shanghai, China.
| | - Guohao Wu
- Department of General Surgery, Zhongshan Hospital of Fudan University, Shanghai, China
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Han D, Lu J, Fan B, Lu W, Xue Y, Wang M, Liu T, Cui S, Gao Q, Duan Y, Xu Y. Lysine-Specific Demethylase 1 Inhibitors: A Comprehensive Review Utilizing Computer-Aided Drug Design Technologies. Molecules 2024; 29:550. [PMID: 38276629 PMCID: PMC10821146 DOI: 10.3390/molecules29020550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 12/31/2023] [Accepted: 01/08/2024] [Indexed: 01/27/2024] Open
Abstract
Lysine-specific demethylase 1 (LSD1/KDM1A) has emerged as a promising therapeutic target for treating various cancers (such as breast cancer, liver cancer, etc.) and other diseases (blood diseases, cardiovascular diseases, etc.), owing to its observed overexpression, thereby presenting significant opportunities in drug development. Since its discovery in 2004, extensive research has been conducted on LSD1 inhibitors, with notable contributions from computational approaches. This review systematically summarizes LSD1 inhibitors investigated through computer-aided drug design (CADD) technologies since 2010, showcasing a diverse range of chemical scaffolds, including phenelzine derivatives, tranylcypromine (abbreviated as TCP or 2-PCPA) derivatives, nitrogen-containing heterocyclic (pyridine, pyrimidine, azole, thieno[3,2-b]pyrrole, indole, quinoline and benzoxazole) derivatives, natural products (including sanguinarine, phenolic compounds and resveratrol derivatives, flavonoids and other natural products) and others (including thiourea compounds, Fenoldopam and Raloxifene, (4-cyanophenyl)glycine derivatives, propargylamine and benzohydrazide derivatives and inhibitors discovered through AI techniques). Computational techniques, such as virtual screening, molecular docking and 3D-QSAR models, have played a pivotal role in elucidating the interactions between these inhibitors and LSD1. Moreover, the integration of cutting-edge technologies such as artificial intelligence holds promise in facilitating the discovery of novel LSD1 inhibitors. The comprehensive insights presented in this review aim to provide valuable information for advancing further research on LSD1 inhibitors.
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Affiliation(s)
- Di Han
- School of Medical Engineering, Xinxiang Medical University, Xinxiang 453003, China; (D.H.); (J.L.)
- Henan International Joint Laboratory of Neural Information Analysis and Drug Intelligent Design, Xinxiang 453003, China
- Xinxiang Key Laboratory of Biomedical Information Research, Xinxiang 453003, China
| | - Jiarui Lu
- School of Medical Engineering, Xinxiang Medical University, Xinxiang 453003, China; (D.H.); (J.L.)
- Henan International Joint Laboratory of Neural Information Analysis and Drug Intelligent Design, Xinxiang 453003, China
- Xinxiang Key Laboratory of Biomedical Information Research, Xinxiang 453003, China
| | - Baoyi Fan
- School of Medical Engineering, Xinxiang Medical University, Xinxiang 453003, China; (D.H.); (J.L.)
- Henan International Joint Laboratory of Neural Information Analysis and Drug Intelligent Design, Xinxiang 453003, China
- Xinxiang Key Laboratory of Biomedical Information Research, Xinxiang 453003, China
| | - Wenfeng Lu
- School of Medical Engineering, Xinxiang Medical University, Xinxiang 453003, China; (D.H.); (J.L.)
- Henan International Joint Laboratory of Neural Information Analysis and Drug Intelligent Design, Xinxiang 453003, China
- Xinxiang Key Laboratory of Biomedical Information Research, Xinxiang 453003, China
| | - Yiwei Xue
- School of Medical Engineering, Xinxiang Medical University, Xinxiang 453003, China; (D.H.); (J.L.)
- Henan International Joint Laboratory of Neural Information Analysis and Drug Intelligent Design, Xinxiang 453003, China
- Xinxiang Key Laboratory of Biomedical Information Research, Xinxiang 453003, China
| | - Meiting Wang
- School of Medical Engineering, Xinxiang Medical University, Xinxiang 453003, China; (D.H.); (J.L.)
- Henan International Joint Laboratory of Neural Information Analysis and Drug Intelligent Design, Xinxiang 453003, China
- Xinxiang Key Laboratory of Biomedical Information Research, Xinxiang 453003, China
| | - Taigang Liu
- School of Medical Engineering, Xinxiang Medical University, Xinxiang 453003, China; (D.H.); (J.L.)
- Henan International Joint Laboratory of Neural Information Analysis and Drug Intelligent Design, Xinxiang 453003, China
- Xinxiang Key Laboratory of Biomedical Information Research, Xinxiang 453003, China
| | - Shaoli Cui
- School of Forensic, Xinxiang Medical University, Xinxiang 453003, China
| | - Qinghe Gao
- School of Pharmacy, Xinxiang Medical University, Xinxiang 453003, China
| | - Yingchao Duan
- School of Pharmacy, Xinxiang Medical University, Xinxiang 453003, China
| | - Yongtao Xu
- School of Medical Engineering, Xinxiang Medical University, Xinxiang 453003, China; (D.H.); (J.L.)
- Henan International Joint Laboratory of Neural Information Analysis and Drug Intelligent Design, Xinxiang 453003, China
- Xinxiang Key Laboratory of Biomedical Information Research, Xinxiang 453003, China
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Jiang S, Yang H, Li M. Emerging Roles of Lysophosphatidic Acid in Macrophages and Inflammatory Diseases. Int J Mol Sci 2023; 24:12524. [PMID: 37569902 PMCID: PMC10419859 DOI: 10.3390/ijms241512524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 08/02/2023] [Accepted: 08/04/2023] [Indexed: 08/13/2023] Open
Abstract
Lysophosphatidic acid (LPA) is a bioactive phospholipid that regulates physiological and pathological processes in numerous cell biological functions, including cell migration, apoptosis, and proliferation. Macrophages are found in most human tissues and have multiple physiological and pathological functions. There is growing evidence that LPA signaling plays a significant role in the physiological function of macrophages and accelerates the development of diseases caused by macrophage dysfunction and inflammation, such as inflammation-related diseases, cancer, atherosclerosis, and fibrosis. In this review, we summarize the roles of LPA in macrophages, analyze numerous macrophage- and inflammation-associated diseases triggered by LPA, and discuss LPA-targeting therapeutic strategies.
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Affiliation(s)
- Shufan Jiang
- Laboratory for Reproductive Immunology, Hospital of Obstetrics and Gynecology, Fudan University, Shanghai 200080, China;
- Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Huili Yang
- Laboratory for Reproductive Immunology, Hospital of Obstetrics and Gynecology, Fudan University, Shanghai 200080, China;
| | - Mingqing Li
- Laboratory for Reproductive Immunology, Hospital of Obstetrics and Gynecology, Fudan University, Shanghai 200080, China;
- Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Hospital of Obstetrics and Gynecology, Fudan University, Shanghai 200080, China
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Lemster AL, Weingart A, Bottner J, Perner S, Sailer V, Offermann A, Kirfel J. Elevated PSPC1 and KDM5C expression indicates poor prognosis in prostate cancer. Hum Pathol 2023; 138:1-11. [PMID: 37209920 DOI: 10.1016/j.humpath.2023.05.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 05/13/2023] [Accepted: 05/15/2023] [Indexed: 05/22/2023]
Abstract
Prostate cancer (PCa) remains the most commonly diagnosed cancer in men worldwide and is still the second leading cause of cancer-related death. One major cause of PCa development is epigenetic aberration, including histone modification. We have previously demonstrated that Lysine Demethylase 5C (KDM5C) plays an essential role in the development of PCa and drives PCa progression by promoting epithelial-mesenchymal transition. Epigenetic regulators often work in concert, for example, to regulate transcription. We identified Paraspeckle Component 1 (PSPC1) as an interacting protein of KDM5C, suggesting that these proteins might function together in PCa. Here, we systematically investigate the expression patterns of KDM5C and PSPC1 in 2 independent prostate cohorts (432 and 205 prostate tumors in total for PSPC1 and KDM5C, respectively) by immunohistochemistry. We demonstrate that the expression of PSPC1 correlates with that of KDM5C. In addition, PSPC1 is up-regulated in primary and metastatic PCa. Elevated PSPC1 expression correlates with a higher-grade group and an advanced T-stage. Patients with high PSPC1 expression have a worse biochemical recurrence-free survival. In addition, PSPC1 expression is an independent prognostic parameter. Our data indicate that KDM5C and PSPC1 are involved in PCa progression, and therapeutic inhibition of KDM5C and PSPC1 by selective compounds might be a promising approach for the treatment of PCa.
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Affiliation(s)
- Anna-Lena Lemster
- Institute of Pathology, University Hospital Schleswig-Holstein, 23538, Luebeck, Germany
| | - Anika Weingart
- Institute of Pathology, University Hospital Schleswig-Holstein, 23538, Luebeck, Germany
| | - Justus Bottner
- Institute of Pathology, University Hospital Schleswig-Holstein, 23538, Luebeck, Germany
| | - Sven Perner
- MVZ HPH Institute of Pathology and Hematology, GmbH, 22547, Hamburg, Germany
| | - Verena Sailer
- Institute of Pathology, University Hospital Schleswig-Holstein, 23538, Luebeck, Germany
| | - Anne Offermann
- Institute of Pathology, University Hospital Schleswig-Holstein, 23538, Luebeck, Germany
| | - Jutta Kirfel
- Institute of Pathology, University Hospital Schleswig-Holstein, 23538, Luebeck, Germany.
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Dong J, Pervaiz W, Tayyab B, Li D, Kang L, Zhang H, Gong H, Ma X, Li J, Agboyibor C, Bi Y, Liu H. A comprehensive comparative study on LSD1 in different cancers and tumor specific LSD1 inhibitors. Eur J Med Chem 2022; 240:114564. [PMID: 35820351 DOI: 10.1016/j.ejmech.2022.114564] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 06/20/2022] [Accepted: 06/20/2022] [Indexed: 01/14/2023]
Abstract
LSD1 was significantly over-expressed in several cancer types, and its aberrant overexpression was revealed to play a crucial role in the initiation and progression of cancer. Several LSD1 inhibitors that were discovered and developed so far were found to be effective in attenuating tumor growth in both in vivo and in vitro studies. However, the major challenge associated with the development of cancer therapies is personalized treatment. Therefore, it is essential to look in detail at how LSD1 plays its part in carcinogenesis and whether there are any different expression levels of LSD1 in different tumors. Here in this review, fresh insight into a list of function correlated LSD1 binding proteins are provided, and we tried to figure out the role of LSD1 in different cancer types, including hematological malignancies and solid tumors. A critical description of mutation preference for LSD1 in different tumors was also discussed. Recent research findings clearly showed that the abrogation of LSD1 demethylase activity via LSD1 inhibitors markedly reduced the growth of cancer cells. But there are still many ambiguities regarding the role of LSD1 in different cancers. Therefore, targeting LSD1 for treating different cancers is still reductionist, and many challenges need to be met to improve the therapeutic outcomes of LSD1 inhibitors.
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Affiliation(s)
- Jianshu Dong
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450001, China; Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Zhengzhou University, Zhengzhou, 450001, China; Key Laboratory of Henan Province for Drug Quality Control and Evaluation, Zhengzhou University, Zhengzhou, 450001, China; Collaborative Innovation Center of New Drug Research and Safety Evaluation, Zhengzhou University, Zhengzhou, 450001, China; Institute of Drug Discovery and Development, Zhengzhou University, Zhengzhou, 450001, China.
| | - Waqar Pervaiz
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450001, China; Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Zhengzhou University, Zhengzhou, 450001, China; Key Laboratory of Henan Province for Drug Quality Control and Evaluation, Zhengzhou University, Zhengzhou, 450001, China; Collaborative Innovation Center of New Drug Research and Safety Evaluation, Zhengzhou University, Zhengzhou, 450001, China; Institute of Drug Discovery and Development, Zhengzhou University, Zhengzhou, 450001, China
| | - Bilal Tayyab
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450001, China; Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Zhengzhou University, Zhengzhou, 450001, China; Key Laboratory of Henan Province for Drug Quality Control and Evaluation, Zhengzhou University, Zhengzhou, 450001, China; Collaborative Innovation Center of New Drug Research and Safety Evaluation, Zhengzhou University, Zhengzhou, 450001, China; Institute of Drug Discovery and Development, Zhengzhou University, Zhengzhou, 450001, China
| | - Dié Li
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450001, China; Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Zhengzhou University, Zhengzhou, 450001, China; Key Laboratory of Henan Province for Drug Quality Control and Evaluation, Zhengzhou University, Zhengzhou, 450001, China; Collaborative Innovation Center of New Drug Research and Safety Evaluation, Zhengzhou University, Zhengzhou, 450001, China; Institute of Drug Discovery and Development, Zhengzhou University, Zhengzhou, 450001, China
| | - Lei Kang
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450001, China; Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Zhengzhou University, Zhengzhou, 450001, China; Key Laboratory of Henan Province for Drug Quality Control and Evaluation, Zhengzhou University, Zhengzhou, 450001, China; Collaborative Innovation Center of New Drug Research and Safety Evaluation, Zhengzhou University, Zhengzhou, 450001, China; Institute of Drug Discovery and Development, Zhengzhou University, Zhengzhou, 450001, China
| | - Huimin Zhang
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450001, China; Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Zhengzhou University, Zhengzhou, 450001, China; Key Laboratory of Henan Province for Drug Quality Control and Evaluation, Zhengzhou University, Zhengzhou, 450001, China; Collaborative Innovation Center of New Drug Research and Safety Evaluation, Zhengzhou University, Zhengzhou, 450001, China; Institute of Drug Discovery and Development, Zhengzhou University, Zhengzhou, 450001, China
| | - Huimin Gong
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450001, China; Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Zhengzhou University, Zhengzhou, 450001, China; Key Laboratory of Henan Province for Drug Quality Control and Evaluation, Zhengzhou University, Zhengzhou, 450001, China; Collaborative Innovation Center of New Drug Research and Safety Evaluation, Zhengzhou University, Zhengzhou, 450001, China; Institute of Drug Discovery and Development, Zhengzhou University, Zhengzhou, 450001, China
| | - Xinli Ma
- China-US(Henan) Hormel Cancer Institute, No.127, Dongming Road, Jinshui District, Zhengzhou, Henan, 450008, China
| | - Jian Li
- China-US(Henan) Hormel Cancer Institute, No.127, Dongming Road, Jinshui District, Zhengzhou, Henan, 450008, China
| | - Clement Agboyibor
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Zhengzhou University, Zhengzhou, 450001, China; Institute of Drug Discovery and Development, Zhengzhou University, Zhengzhou, 450001, China
| | - Yuefeng Bi
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450001, China; Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Zhengzhou University, Zhengzhou, 450001, China; Key Laboratory of Henan Province for Drug Quality Control and Evaluation, Zhengzhou University, Zhengzhou, 450001, China; Collaborative Innovation Center of New Drug Research and Safety Evaluation, Zhengzhou University, Zhengzhou, 450001, China; Institute of Drug Discovery and Development, Zhengzhou University, Zhengzhou, 450001, China.
| | - Hongmin Liu
- Institute of Drug Discovery and Development, Zhengzhou University, Zhengzhou, 450001, China.
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He J, Meng M, Wang H. A Novel Prognostic Biomarker LPAR6 in Hepatocellular Carcinoma via Associating with Immune Infiltrates. J Clin Transl Hepatol 2022; 10:90-103. [PMID: 35233377 PMCID: PMC8845155 DOI: 10.14218/jcth.2021.00047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 03/30/2021] [Accepted: 04/11/2021] [Indexed: 12/04/2022] Open
Abstract
BACKGROUND AND AIMS LPAR6 is the most recently determined G protein-coupled receptor of lysophosphatidic acid, and hardly any study has demonstrated the performance of LPAR6 in cancers. We sought to clarify the relationship of LPAR6 to prognosis potential and tumor infiltration immune cells in different cancers. METHODS The expression of LPAR6 and its clinical characteristics were evaluated on various databases. The association between LPAR6 and immune infiltrates of various types of cancer were investigated via TIMER. RESULTS We determined that higher LPAR6 expression level was associated with a better overall survival. Additionally, high LPAR6 expression level was significantly associated with better disease-specific survival (DSS) in bladder cancer, and better overall survival (OS)/ progression-free survival (PFS)/ distant metastasis-free survival (DMFS)/ relapse-free survival (RFS) in breast cancer and some other types of cancers. Moreover, LPAR6 significantly affects the prognosis of various cancers via The Cancer Genome Atlas (TCGA). Further research exposed that the mRNA level of LPAR6 was positively coordinated with infiltrating levels of devious immune cells in hepatocellular carcinoma. CONCLUSIONS Our results imply that LPAR6 is associated with prognosis potential and immune infiltration levels in liver cancer. Moreover, LPAR6 expression possibly contributes to the activation of CD8+ T, naive T, effector T cells and natural killer cells and inactivates T regulatory cells, decreases T cell exhaustion and regulate T helper cells in liver cancer. These discoveries imply that LPAR6 could be a novel biomarker of prognosis for indicating prognosis potential and immune-infiltrating level in hepatocellular carcinoma.
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Affiliation(s)
- Jian He
- Correspondence to: Hui Wang and Jian He, State Key Laboratory of Oncogenes and Related Genes, Center for Single-Cell Omics, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China. ORCID: https://orcid.org/0000-0002-1426-7799 (JH). Tel/Fax: +86-21-6384-6590, E-mail: (HW), (JH)
| | | | - Hui Wang
- Correspondence to: Hui Wang and Jian He, State Key Laboratory of Oncogenes and Related Genes, Center for Single-Cell Omics, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China. ORCID: https://orcid.org/0000-0002-1426-7799 (JH). Tel/Fax: +86-21-6384-6590, E-mail: (HW), (JH)
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8
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Suenaga R, Takemoto M, Inoue A, Ishitani R, Nureki O. Lateral access mechanism of LPA receptor probed by molecular dynamics simulation. PLoS One 2022; 17:e0263296. [PMID: 35113924 PMCID: PMC8812926 DOI: 10.1371/journal.pone.0263296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Accepted: 01/17/2022] [Indexed: 11/23/2022] Open
Abstract
G-protein-coupled receptors (GPCR) are a family of membrane receptors that play important roles in the regulation of various physiological phenomena. LPA receptors (LPA1-6) are members of the class A GPCRs, which transduce a lysophosphatidic acid (LPA) signal across the cell membrane and evoke various responses, including cellular survival, proliferation, differentiation, and migration. The crystal structure of LPA6 revealed a gap between its transmembrane helices (TMs), which is opened toward the membrane side. This led to the proposal of the “lateral access model,” in which its lipophilic ligand directly enters the binding pocket through the gap structure at the membrane. In this study, we performed molecular dynamics (MD) simulations and Markov state model (MSM) analyses of LPA6 and LPA, to elucidate the long timescale dynamics of the ligand binding process. The results from the 71.4-μs MD simulation suggested that the flexibility of the TMs constituting the gap structure enables the lateral entrance of the ligand, and the key interactions between the receptor and ligand facilitate the transition state of the ligand binding process.
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Affiliation(s)
- Rieko Suenaga
- Department of Biophysics and Biochemistry, Graduate School of Science, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Mizuki Takemoto
- Department of Biophysics and Biochemistry, Graduate School of Science, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Asuka Inoue
- Graduate School of Pharmaceutical Sciences, Tohoku University, Aramaki, Aoba-ku, Sendai, Miyagi, Japan
| | - Ryuichiro Ishitani
- Department of Biophysics and Biochemistry, Graduate School of Science, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
- * E-mail: (RI); (ON)
| | - Osamu Nureki
- Department of Biophysics and Biochemistry, Graduate School of Science, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
- * E-mail: (RI); (ON)
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Huang KB, Pan YH, Shu GN, Yao HH, Liu X, Zhou M, Wei JH, Chen ZH, Lu J, Feng ZH, Chen W, Han H, Zheng ZS, Luo JH, Zhang JX. Circular RNA circSNX6 promotes sunitinib resistance in renal cell carcinoma through the miR-1184/GPCPD1/ lysophosphatidic acid axis. Cancer Lett 2021; 523:121-134. [PMID: 34626691 DOI: 10.1016/j.canlet.2021.10.003] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 09/16/2021] [Accepted: 10/04/2021] [Indexed: 12/30/2022]
Abstract
Sunitinib resistance is a major challenge in systemic therapy for renal cell carcinoma (RCC). The role of circular RNAs (circRNAs) in regulating sunitinib resistance of RCC is largely unknown. We established sunitinib-resistant RCC cell lines in vivo. Through RNA-sequencing, we identified circSNX6, whose expression is upregulated in sunitinib-resistant cells compared with their parental cells. High circSNX6 expression was correlated with sunitinib resistance and worse oncologic outcomes in a cohort of 81 RCC patients. In vitro and in vivo experiments confirmed that circSNX6 could promote sunitinib resistance in RCC. circSNX6 acts as a molecular "sponge" to relieve the suppressive effect of microRNA (miR)-1184 on its target gene, glycerophosphocholine phosphodiesterase 1 (GPCPD1), which increases intracellular lysophosphatidic acid (LPA) levels and, ultimately, promotes sunitinib resistance in RCC cells. Our findings demonstrated that the circSNX6/miR-1184/GPCPD1 axis had a critical role in regulation of intracellular LPA levels and sunitinib resistance in RCC; they also provide a novel prognostic indicator and promising therapeutic targets.
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Affiliation(s)
- Kang-Bo Huang
- Department of Urology, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yi-Hui Pan
- Department of Urology, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Guan-Nan Shu
- Department of Urology, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Hao-Hua Yao
- Department of Urology, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xi Liu
- Department of Urology, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Mi Zhou
- Department of Oncology, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Jin-Huan Wei
- Department of Urology, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Zhen-Hua Chen
- Department of Urology, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Jun Lu
- Department of Urology, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Zi-Hao Feng
- Department of Urology, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Wei Chen
- Department of Urology, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Hui Han
- Department of Urology, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Zhou-San Zheng
- Department of Oncology, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.
| | - Jun-Hang Luo
- Department of Urology, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.
| | - Jia-Xing Zhang
- Department of Oncology, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.
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10
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HAUSP Is a Key Epigenetic Regulator of the Chromatin Effector Proteins. Genes (Basel) 2021; 13:genes13010042. [PMID: 35052383 PMCID: PMC8774506 DOI: 10.3390/genes13010042] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 12/20/2021] [Accepted: 12/21/2021] [Indexed: 12/18/2022] Open
Abstract
HAUSP (herpes virus-associated ubiquitin-specific protease), also known as Ubiquitin Specific Protease 7, plays critical roles in cellular processes, such as chromatin biology and epigenetics, through the regulation of different signaling pathways. HAUSP is a main partner of the “Epigenetic Code Replication Machinery,” ECREM, a large protein complex that includes several epigenetic players, such as the ubiquitin-like containing plant homeodomain (PHD) and an interesting new gene (RING), finger domains 1 (UHRF1), as well as DNA methyltransferase 1 (DNMT1), histone deacetylase 1 (HDAC1), histone methyltransferase G9a, and histone acetyltransferase TIP60. Due to its deubiquitinase activity and its ability to team up through direct interactions with several epigenetic regulators, mainly UHRF1, DNMT1, TIP60, the histone lysine methyltransferase EZH2, and the lysine-specific histone demethylase LSD1, HAUSP positions itself at the top of the regulatory hierarchies involved in epigenetic silencing of tumor suppressor genes in cancer. This review highlights the increasing role of HAUSP as an epigenetic master regulator that governs a set of epigenetic players involved in both the maintenance of DNA methylation and histone post-translational modifications.
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11
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Ojha R, Chen IC, Hsieh CM, Nepali K, Lai RW, Hsu KC, Lin TE, Pan SL, Chen MC, Liou JP. Installation of Pargyline, a LSD1 Inhibitor, in the HDAC Inhibitory Template Culminated in the Identification of a Tractable Antiprostate Cancer Agent. J Med Chem 2021; 64:17824-17845. [PMID: 34908406 DOI: 10.1021/acs.jmedchem.1c00966] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Pragmatic insertion of pargyline, a LSD1 inhibitor, as a surface recognition part in the HDAC inhibitory pharmacophore was planned in pursuit of furnishing potent antiprostate cancer agents. Resultantly, compound 14 elicited magnificent cell growth inhibitory effects against the PC-3 and DU-145 cell lines and led to remarkable suppression of tumor growth in human prostate PC-3 and DU-145 xenograft nude mouse models. The outcome of the enzymatic assays ascertained that the substantial antiproliferative effects of compound 14 were mediated through HDAC6 isoform inhibition as well as selective MAO-A and LSD1 inhibition. Moreover, the signatory feature of LSD1 inhibition by 14 in the context of H3K4ME2 accumulation was clearly evident from the results of western blot analysis. Gratifyingly, hydroxamic acid 14 demonstrates good human hepatocytic stability and good oral bioavailability in rats and exhibits enough promise to emerge as a therapeutic for the treatment of prostate cancer in the near future.
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Affiliation(s)
- Ritu Ojha
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei 110031, Taiwan
| | - I-Chung Chen
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei 110031, Taiwan
| | - Chien-Ming Hsieh
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei 110031, Taiwan.,TMU Research Center of Drug Discovery, Taipei Medical University, Taipei 110031, Taiwan
| | - Kunal Nepali
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei 110031, Taiwan.,TMU Research Center of Drug Discovery, Taipei Medical University, Taipei 110031, Taiwan
| | - Row-Wen Lai
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei 110031, Taiwan
| | - Kai-Cheng Hsu
- Graduate Institute of Cancer Molecular Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei 110031, Taiwan.,TMU Research Center of Drug Discovery, Taipei Medical University, Taipei 110031, Taiwan.,Ph.D. Program in Drug Discovery and Development Industry, College of Pharmacy, Taipei Medical University, Taipei 110031, Taiwan
| | - Tony Eight Lin
- Master Program for Cancer Molecular Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei 110031, Taiwan
| | - Shiow-Lin Pan
- Graduate Institute of Cancer Molecular Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei 110031, Taiwan.,TMU Research Center of Drug Discovery, Taipei Medical University, Taipei 110031, Taiwan.,Ph.D. Program in Drug Discovery and Development Industry, College of Pharmacy, Taipei Medical University, Taipei 110031, Taiwan
| | - Mei-Chuan Chen
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei 110031, Taiwan.,TMU Research Center of Drug Discovery, Taipei Medical University, Taipei 110031, Taiwan.,Ph.D. Program in Drug Discovery and Development Industry, College of Pharmacy, Taipei Medical University, Taipei 110031, Taiwan.,Traditional Herbal Medicine Research Center, Taipei Medical University Hospital, Taipei 110031, Taiwan.,Clinical Drug Development of Herbal Medicine, College of Pharmacy, Taipei Medical University, Taipei 110031, Taiwan
| | - Jing-Ping Liou
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei 110031, Taiwan.,TMU Research Center of Drug Discovery, Taipei Medical University, Taipei 110031, Taiwan
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12
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He J, Gao R, Meng M, Yu M, Liu C, Li J, Song Y, Wang H. Lysophosphatidic Acid Receptor 6 (LPAR6) Is a Potential Biomarker Associated with Lung Adenocarcinoma. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph182111038. [PMID: 34769557 PMCID: PMC8583018 DOI: 10.3390/ijerph182111038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 08/30/2021] [Accepted: 09/02/2021] [Indexed: 11/16/2022]
Abstract
LPAR6 is the most recently determined G-protein-coupled receptor of the lysophosphatidic acid receptor, and very few of studies have demonstrated the performance of LPAR6 in cancers. Moreover, the relationship of LPAR6 to the potential of prognosis and tumor infiltration immune cells in different types of cancer are still unclarified. In this study, the mRNA expression of LPAR6 and its clinical characteristics were evaluated on various databases. The association between LPAR6 and immune infiltrates of various types of cancer were investigated via TIMER. Immunohistochemistry (IHC) for LPAR6 in lung adenocarcinoma (LUAD) and lung squamous cell carcinoma (LUSC) tissue microarray with patients’ information was detected. We constructed a systematic prognostic landscape in a variety of types of cancer base on the expression level of mRNA. We enclosed that higher LPAR6 mRNA expression level was associated with better overall survival in some types of malignancy. Moreover, LPAR6 significantly affects the prognostic potential of various cancers in The Cancer Genome Atlas Program (TCGA), especially in lung cancer. Tissue microarrays of lung cancer patient cohorts demonstrated that a higher protein level of LPAR6 was correlated to better overall survival of LUAD rather than LUSC cohorts. Further research indicated that the underlying mechanism of this phenome might be the mRNA expression level of LPAR6 was positively associated to infiltrating statuses of devious immunocytes in LUAD rather than in LUSC, that is, LPAR6 expression potentially contributes to the activation and recruiting of T cells (CD8+ T, naive T, effector T cell) and NK cells and inactivates Tregs, decreases T cell exhaustion and regulates T-helper (Th) cells in LUAD. Our discovery implies that LPAR6 is associated with prognostic potential and immune-infiltrating levels in LUAD. These discoveries imply that LPAR6 could be a promising novel biomarker for indicating the prognosis potential of LUAD patients.
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Affiliation(s)
- Jian He
- State Key Laboratory of Oncogenes and Related Genes, Center for Single-Cell Omics, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China; (R.G.); (M.M.); (J.L.)
- Correspondence: (J.H.); (Y.S.); (H.W.)
| | - Rui Gao
- State Key Laboratory of Oncogenes and Related Genes, Center for Single-Cell Omics, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China; (R.G.); (M.M.); (J.L.)
| | - Mei Meng
- State Key Laboratory of Oncogenes and Related Genes, Center for Single-Cell Omics, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China; (R.G.); (M.M.); (J.L.)
| | - Miao Yu
- CAS Key Laboratory of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou 215163, China;
| | - Chengrong Liu
- Shanghai Institute of Immunology, Department of Immunology and Microbiology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China;
| | - Jingquan Li
- State Key Laboratory of Oncogenes and Related Genes, Center for Single-Cell Omics, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China; (R.G.); (M.M.); (J.L.)
| | - Yizhi Song
- CAS Key Laboratory of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou 215163, China;
- Correspondence: (J.H.); (Y.S.); (H.W.)
| | - Hui Wang
- State Key Laboratory of Oncogenes and Related Genes, Center for Single-Cell Omics, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China; (R.G.); (M.M.); (J.L.)
- Correspondence: (J.H.); (Y.S.); (H.W.)
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13
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Li Y, Qian X, Lin Y, Tao L, Zuo Z, Zhang H, Yang S, Cen X, Zhao Y. Lipidomic profiling reveals lipid regulation by a novel LSD1 inhibitor treatment. Oncol Rep 2021; 46:233. [PMID: 34498714 PMCID: PMC8444191 DOI: 10.3892/or.2021.8184] [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: 10/02/2019] [Accepted: 06/15/2021] [Indexed: 02/05/2023] Open
Abstract
Lipid metabolic alterations are associated with cancer progression. Lysine-specific demethylase 1 (LSD1) plays a crucial role in cancer and has become a promising target for cancer therapy. However, the effect of LSD1 on lipid metabolism remains unclear. In the present study, we used a LC-MS/MS-based lipidomics approach to investigate the impact of LSD1 on cancer cell lipid metabolism using ZY0511, a specific LSD1 inhibitor developed by our group as a specific probe. ZY0511 profoundly modified the human colorectal and cervical cancer cell lipid metabolism. A total of 256 differential metabolites were identified in HeLa cells, and 218 differential metabolites were identified in HCT116 cells, respectively. Among these lipid metabolites, phosphatidylserine, phosphatidylethanolamine, phosphatidylcholine and sphingomyelin (SM) were downregulated by ZY0511. In contrast, ceramide (Cer) and a small portion of glycerophospholipids such as phosphatidylinositol and phosphatidylethanolamine were upregulated by ZY0511. These results revealed a disturbance in sphingolipids (SPs) and glycerophospholipids, which may be correlated with the progression of cancer. Furthermore, a marked increase in Cer and prominent decrease in SM were consistent with the upregulated expression of key enzymes in the Cer synthesis process including de novo synthesis, hydrolysis of SM and the salvage pathway after ZY0511 exposure. In conclusion, our research reveals a link between LSD1 and lipid metabolism in cancer cells, offering more comprehensive evidence for the application of LSD1 inhibitors for cancer therapy. The underlying mechanisms of how the LSD1 inhibitor regulates lipid metabolism warrant further investigation.
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Affiliation(s)
- Yan Li
- Department of Pharmacology, Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China
| | - Xinying Qian
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, and Collaborative Innovation Center for Biotherapy, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Yiyun Lin
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, and Collaborative Innovation Center for Biotherapy, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Lei Tao
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, and Collaborative Innovation Center for Biotherapy, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Zeping Zuo
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, and Collaborative Innovation Center for Biotherapy, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Huaqin Zhang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, and Collaborative Innovation Center for Biotherapy, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Shengyong Yang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, and Collaborative Innovation Center for Biotherapy, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Xiaobo Cen
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Collaborative Innovation Center for Biotherapy, Chengdu, Sichuan 610041, P.R. China
| | - Yinglan Zhao
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, and Collaborative Innovation Center for Biotherapy, Sichuan University, Chengdu, Sichuan 610041, P.R. China
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14
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Lysophosphatidic Acid Signaling in Cancer Cells: What Makes LPA So Special? Cells 2021; 10:cells10082059. [PMID: 34440828 PMCID: PMC8394178 DOI: 10.3390/cells10082059] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 08/06/2021] [Accepted: 08/07/2021] [Indexed: 12/13/2022] Open
Abstract
Lysophosphatidic acid (LPA) refers to a family of simple phospholipids that act as ligands for G protein-coupled receptors. While LPA exerts effects throughout the body in normal physiological circumstances, its pathological role in cancer is of great interest from a therapeutic viewpoint. The numerous LPA receptors (LPARs) are coupled to a variety of G proteins, and more than one LPAR is typically expressed on any given cell. While the individual receptors signal through conventional GPCR pathways, LPA is particularly efficacious in stimulating cancer cell proliferation and migration. This review addresses the mechanistic aspects underlying these pro-tumorigenic effects. We provide examples of LPA signaling responses in various types of cancers, with an emphasis on those where roles have been identified for specific LPARs. While providing an overview of LPAR signaling, these examples also reveal gaps in our knowledge regarding the mechanisms of LPA action at the receptor level. The current understanding of the LPAR structure and the roles of LPAR interactions with other receptors are discussed. Overall, LPARs provide insight into the potential molecular mechanisms that underlie the ability of individual GPCRs (or combinations of GPCRs) to elicit a unique spectrum of responses from their agonist ligands. Further knowledge of these mechanisms will inform drug discovery, since GPCRs are promising therapeutic targets for cancer.
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15
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Raloxifene, identified as a novel LSD1 inhibitor, suppresses the migration of renal cell carcinoma. Future Med Chem 2021; 13:533-542. [PMID: 33527838 DOI: 10.4155/fmc-2020-0323] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Aim: As an important epigenetic modulator, histone lysine-specific demethylase 1 (LSD1) has been proved to be associated with the progression of renal cell carcinoma (RCC). Discovering novel LSD1 inhibitors offers therapeutic potential for RCC treatment. Methods & Results: We identified raloxifene as a novel LSD1 inhibitor (IC50 = 2.08 μM) through small compound library screening. Molecular docking indicated raloxifene might bind LSD1 in the flavin adenine dinucleotide (FAD) binding cavity in a reversible manner. Cell viability and migration assays showed raloxifene could suppress the proliferation and migration of RCC cells bearing overexpressed LSD1. Conclusion: Our findings indicated that LSD1 might be a promising therapeutic target for RCC and that raloxifene could serve as a lead compound for further anti-RCC metastasis drug discovery.
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16
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Geraldo LHM, Spohr TCLDS, Amaral RFD, Fonseca ACCD, Garcia C, Mendes FDA, Freitas C, dosSantos MF, Lima FRS. Role of lysophosphatidic acid and its receptors in health and disease: novel therapeutic strategies. Signal Transduct Target Ther 2021; 6:45. [PMID: 33526777 PMCID: PMC7851145 DOI: 10.1038/s41392-020-00367-5] [Citation(s) in RCA: 124] [Impact Index Per Article: 41.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 09/28/2020] [Accepted: 09/30/2020] [Indexed: 12/12/2022] Open
Abstract
Lysophosphatidic acid (LPA) is an abundant bioactive phospholipid, with multiple functions both in development and in pathological conditions. Here, we review the literature about the differential signaling of LPA through its specific receptors, which makes this lipid a versatile signaling molecule. This differential signaling is important for understanding how this molecule can have such diverse effects during central nervous system development and angiogenesis; and also, how it can act as a powerful mediator of pathological conditions, such as neuropathic pain, neurodegenerative diseases, and cancer progression. Ultimately, we review the preclinical and clinical uses of Autotaxin, LPA, and its receptors as therapeutic targets, approaching the most recent data of promising molecules modulating both LPA production and signaling. This review aims to summarize the most update knowledge about the mechanisms of LPA production and signaling in order to understand its biological functions in the central nervous system both in health and disease.
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Affiliation(s)
- Luiz Henrique Medeiros Geraldo
- Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.,Université de Paris, PARCC, INSERM, F-75015, Paris, France
| | | | | | | | - Celina Garcia
- Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Fabio de Almeida Mendes
- Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Catarina Freitas
- Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Marcos Fabio dosSantos
- Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Flavia Regina Souza Lima
- Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.
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17
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Perillo B, Tramontano A, Pezone A, Migliaccio A. LSD1: more than demethylation of histone lysine residues. Exp Mol Med 2020; 52:1936-1947. [PMID: 33318631 PMCID: PMC8080763 DOI: 10.1038/s12276-020-00542-2] [Citation(s) in RCA: 80] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 10/21/2020] [Accepted: 11/03/2020] [Indexed: 12/19/2022] Open
Abstract
Lysine-specific histone demethylase 1 (LSD1) represents the first example of an identified nuclear protein with histone demethylase activity. In particular, it plays a special role in the epigenetic regulation of gene expression, as it removes methyl groups from mono- and dimethylated lysine 4 and/or lysine 9 on histone H3 (H3K4me1/2 and H3K9me1/2), behaving as a repressor or activator of gene expression, respectively. Moreover, it has been recently found to demethylate monomethylated and dimethylated lysine 20 in histone H4 and to contribute to the balance of several other methylated lysine residues in histone H3 (i.e., H3K27, H3K36, and H3K79). Furthermore, in recent years, a plethora of nonhistone proteins have been detected as targets of LSD1 activity, suggesting that this demethylase is a fundamental player in the regulation of multiple pathways triggered in several cellular processes, including cancer progression. In this review, we analyze the molecular mechanism by which LSD1 displays its dual effect on gene expression (related to the specific lysine target), placing final emphasis on the use of pharmacological inhibitors of its activity in future clinical studies to fight cancer. Further research into the complex structure and behavior of an enzyme involved in gene regulation could improve future cancer therapies. The modification of chromosomal proteins known as histones can fundamentally change gene expression and influence the progression of diseases such as cancer. Bruno Perillo at the Italian National Research Council, Naples, Italy, and co-workers reviewed understanding of the structurally complex enzyme lysine-specific histone demethylase 1 A (LSD1), which interacts with multiple targets including histones. LSD1 removes methyl groups from histones, fine-tuning gene expression and influencing protein activity. The overexpression of LSD1 is linked to cancer development, particularly in aggressive cancers, and inhibiting LSD1 has shown promise in slowing progression and cancer spread. The researchers call for further research into the complexities of LSD1 activity, both in cancers and normal cell function.
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Affiliation(s)
- Bruno Perillo
- Istituto per l'Endocrinologia e l'Oncologia Sperimentale "G. Salvatore" C.N.R, 80131, Naples, Italy.
| | - Alfonso Tramontano
- Dipartimento di Medicina di Precisione Università della Campania "L. Vanvitelli", 80138, Naples, Italy
| | - Antonio Pezone
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche Università Federico II, 80131, Naples, Italy.
| | - Antimo Migliaccio
- Dipartimento di Medicina di Precisione Università della Campania "L. Vanvitelli", 80138, Naples, Italy
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18
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Zhao K, Li Y, Han T, Sun A, Bian W, Li M, Lin Q, Shao G. Comparison of the expression levels of lysine-specific demethylase 1 and survival outcomes between triple-negative and non-triple-negative breast cancer. Oncol Lett 2020; 21:102. [PMID: 33376535 PMCID: PMC7751332 DOI: 10.3892/ol.2020.12363] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 11/02/2020] [Indexed: 02/02/2023] Open
Abstract
Lysine-specific demethylase 1 (LSD1) is a nuclear protein and the first histone demethylase to be identified. LSD1 is an evolutionarily conserved member of the FAD-dependent amine oxidase family and serves an important role in controlling gene expression. LSD1 has been implicated in the tumorigenesis and progression of several types of human cancer; however, to the best of our knowledge, the expression levels and clinical significance of LSD1 in triple-negative breast cancer (TNBC) and non-triple-negative breast cancer (NTNBC) have not been investigated in detail. Therefore, the present study aimed to compare the expression levels of LSD1 in TNBC and NTNBC to determine the prognostic significance of LSD1 in breast cancer. Previous studies have suggested that LSD1 may be involved in the carcinogenesis and progression of breast cancer; however, the findings of the present study indicated that LSD1 may not be a suitable molecular treatment target and auxiliary diagnostic indicator for TNBC and NTNBC.
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Affiliation(s)
- Kangrong Zhao
- School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
| | - Yanlin Li
- School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
| | - Tiantian Han
- School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
| | - Aiqin Sun
- School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
| | - Wenxuan Bian
- School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
| | - Mingyue Li
- School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
| | - Qiong Lin
- School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
| | - Genbao Shao
- School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
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19
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Tian JY, Chi CL, Bian G, Guo FJ, Wang XQ, Yu B. A novel GPCR target in correlation with androgen deprivation therapy for prostate cancer drug discovery. Basic Clin Pharmacol Toxicol 2020; 128:195-203. [PMID: 32991779 DOI: 10.1111/bcpt.13499] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 09/17/2020] [Accepted: 09/17/2020] [Indexed: 12/24/2022]
Abstract
Most prostate carcinomas require androgen stimulation to grow, and for nearly 70 years, androgen ablation therapy has been one of the central therapeutic strategies against advanced prostate cancer. Although most tumours initially respond to this therapy, some will be acquired resistant and progress to metastatic castration-resistant (mCRPC) disease which clinically tends to progress more rapidly than earlier disease manifestations. The underlying molecular biology of mCRPC is highly complex, and numerous mechanisms have been proposed that promote and retain androgen independence. In various clinical and preclinical data explored, the nature of intracellular signalling pathways mediating mitogenic acquired resistant effects of GPCRs in prostate cancer is poorly defined. G-protein-coupled receptor kinase 2 (GRK2) contributes to the modulation of basic cellular functions-such as cell proliferation, survival or motility-and is involved in metabolic homeostasis, inflammation or angiogenic processes. Moreover, altered GRK2 levels are starting to be reported in different tumoural contexts and shown to promote breast tumourigenesis or to trigger the tumoural angiogenic switch. Thus, we are exploring recent findings that present unexpected opportunities to interfere with major tumourigenic signals by manipulating GPCR-mediated pathways.
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Affiliation(s)
- Jing-Yan Tian
- Department of Urology, Second Division of The First Hospital of Jilin University, Changchun, People's Republic of China
| | - Chang-Liang Chi
- Department of Urology, Second Division of The First Hospital of Jilin University, Changchun, People's Republic of China
| | - Ge Bian
- Department of Urology, Second Division of The First Hospital of Jilin University, Changchun, People's Republic of China
| | - Feng-Jun Guo
- Department of Gynaecology and Obstetrics, The Second Hospital of Jilin University, Changchun, People's Republic of China
| | - Xiao-Qing Wang
- Department of Urology, Second Division of The First Hospital of Jilin University, Changchun, People's Republic of China
| | - Bing Yu
- Department of Urology, Second Division of The First Hospital of Jilin University, Changchun, People's Republic of China
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Jia G, Cang S, Ma P, Song Z. Capsaicin: A “hot” KDM1A/LSD1 inhibitor from peppers. Bioorg Chem 2020; 103:104161. [DOI: 10.1016/j.bioorg.2020.104161] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 07/30/2020] [Accepted: 08/02/2020] [Indexed: 12/18/2022]
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21
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Dai XJ, Liu Y, Xiong XP, Xue LP, Zheng YC, Liu HM. Tranylcypromine Based Lysine-Specific Demethylase 1 Inhibitor: Summary and Perspective. J Med Chem 2020; 63:14197-14215. [PMID: 32931269 DOI: 10.1021/acs.jmedchem.0c00919] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Histone lysine-specific demethylase 1 (LSD1/KDM1A) has become an important and promising anticancer target since it was first identified in 2004 and specially demethylates lysine residues of histone H3K4me1/2 and H3K9me1/2. LSD1 is ubiquitously overexpressed in diverse cancers, and abrogation of LSD1 results in inhibition of proliferation, invasion, and migration in cancer cells. Over the past decade, a number of biologically active small-molecule LSD1 inhibitors have been developed. To date, six trans-2-phenylcyclopropylamine (TCP)-based LSD1 inhibitors (including TCP, ORY-1001, GSK-2879552, INCB059872, IMG-7289, and ORY-2001) that covalently bind to the flavin adenine dinucleotide (FAD) within the LSD1 catalytic cavity have already entered into clinical trials. Here, we provide an overview about the structures, activities, and structure-activity relationship (SAR) of TCP-based LSD1 inhibitors that mainly covers the literature from 2008 to date. The opportunities, challenges, and future research directions in this emerging and promising field are also discussed.
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Affiliation(s)
- Xing-Jie Dai
- Key Lab of Advanced Drug Preparation Technologies, Ministry of Education of China, State Key Laboratory of Esophageal Cancer Prevention & Treatment, Key Laboratory of Henan Province for Drug Quality and Evaluation, Institute of Drug Discovery and Development, School of Pharmaceutical Sciences, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, Henan 450001, China
| | - Ying Liu
- Key Lab of Advanced Drug Preparation Technologies, Ministry of Education of China, State Key Laboratory of Esophageal Cancer Prevention & Treatment, Key Laboratory of Henan Province for Drug Quality and Evaluation, Institute of Drug Discovery and Development, School of Pharmaceutical Sciences, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, Henan 450001, China
| | - Xiao-Peng Xiong
- Key Lab of Advanced Drug Preparation Technologies, Ministry of Education of China, State Key Laboratory of Esophageal Cancer Prevention & Treatment, Key Laboratory of Henan Province for Drug Quality and Evaluation, Institute of Drug Discovery and Development, School of Pharmaceutical Sciences, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, Henan 450001, China
| | - Lei-Peng Xue
- Key Lab of Advanced Drug Preparation Technologies, Ministry of Education of China, State Key Laboratory of Esophageal Cancer Prevention & Treatment, Key Laboratory of Henan Province for Drug Quality and Evaluation, Institute of Drug Discovery and Development, School of Pharmaceutical Sciences, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, Henan 450001, China
| | - Yi-Chao Zheng
- Key Lab of Advanced Drug Preparation Technologies, Ministry of Education of China, State Key Laboratory of Esophageal Cancer Prevention & Treatment, Key Laboratory of Henan Province for Drug Quality and Evaluation, Institute of Drug Discovery and Development, School of Pharmaceutical Sciences, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, Henan 450001, China
| | - Hong-Min Liu
- Key Lab of Advanced Drug Preparation Technologies, Ministry of Education of China, State Key Laboratory of Esophageal Cancer Prevention & Treatment, Key Laboratory of Henan Province for Drug Quality and Evaluation, Institute of Drug Discovery and Development, School of Pharmaceutical Sciences, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, Henan 450001, China
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22
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Xenograft-derived mRNA/miR and protein interaction networks of systemic dissemination in human prostate cancer. Eur J Cancer 2020; 137:93-107. [PMID: 32750503 DOI: 10.1016/j.ejca.2020.06.025] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 06/12/2020] [Accepted: 06/23/2020] [Indexed: 12/21/2022]
Abstract
BACKGROUND Distant metastasis formation is the major clinical problem in prostate cancer (PCa) and the underlying mechanisms remain poorly understood. Our aim was to identify novel molecules that functionally contribute to human PCa systemic dissemination based on unbiased approaches. METHODS We compared mRNA, microRNA (miR) and protein expression levels in established human PCa xenograft tumours with high (PC-3), moderate (VCaP) or weak (DU-145) spontaneous micrometastatic potential. By focussing on those mRNAs, miRs and proteins that were differentially regulated among the xenograft groups and known to interact with each other we constructed dissemination-related mRNA/miR and protein/miR networks. Next, we clinically and functionally validated our findings. RESULTS Besides known determinants of PCa progression and/or metastasis, our interaction networks include several novel candidates. We observed a clear role of epithelial-to-mesenchymal transition (EMT) pathways for PCa dissemination, which was additionally confirmed by an independent human PCa model (ARCAP-E/-M). Two converging nodes, CD46 (decreasing with metastatic potential) and DDX21 (increasing with metastatic potential), were used to test the clinical relevance of the networks. Intriguingly, both network nodes consistently added prognostic information for patients with PCa whereas CD46 loss predicted poor outcome independent of established parameters. Accordingly, depletion of CD46 in weakly metastatic PCa cells induced EMT-like properties in vitro and spontaneous micrometastasis formation in vivo. CONCLUSIONS The clinical and functional relevance of the dissemination-related interaction networks shown here could be successfully validated by proof-of-principle experiments. Therefore, we suggest a direct pro-metastatic, clinically relevant role for the multiple novel candidates included in this study; these should be further exploited by future studies.
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23
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Egolf S, Capell BC. LSD1: a viable therapeutic target in cutaneous squamous cell carcinoma? Expert Opin Ther Targets 2020; 24:671-678. [PMID: 32379508 PMCID: PMC7387205 DOI: 10.1080/14728222.2020.1762175] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Accepted: 04/26/2020] [Indexed: 02/08/2023]
Abstract
INTRODUCTION Cutaneous squamous cell carcinoma (cSCC) is the second most frequent cancer; it can be locally invasive and metastatic. cSCC is an immense clinical and economic problem given its sheer incidence and potential morbidity and mortality, particularly in the elderly and immunocompromised. Epigenetics has emerged as one of the most exciting areas of human biology, impacting virtually all areas of cellular physiology. Inhibition of an epigenetic enzyme is a potential treatment of cSCC. AREAS COVERED We provide an overview of the development of inhibitors targeting the lysine demethylase, LSD1 (KDM1A), the first histone demethylase discovered. We summarize current treatment modalities for cSCC and provide a rationale for why epigenome-targeting therapies, and particularly LSD1 inhibitors, may be a novel and effective approach for treating pre-malignant and malignant cSCCs. A search was conducted in PubMed utilizing the combination of 'LSD1' with keywords such as 'epidermis,' 'squamous cell carcinoma,' or 'skin.' Relevant papers from 2000 to 2020 were reviewed. EXPERT OPINION Given the ability of LSD1 inhibitors to promote epidermal differentiation and enhance anti-tumor immune responses, LSD1 inhibitors may offer a highly effective therapeutic approach for the prevention and treatment of these ubiquitous cancers.
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Affiliation(s)
- Shaun Egolf
- Penn Epigenetics Institute, University of Pennsylvania Perelman School of Medicine , Philadelphia, PA, USA
- Department of Dermatology, University of Pennsylvania Perelman School of Medicine , Philadelphia, PA, USA
| | - Brian C Capell
- Penn Epigenetics Institute, University of Pennsylvania Perelman School of Medicine , Philadelphia, PA, USA
- Department of Dermatology, University of Pennsylvania Perelman School of Medicine , Philadelphia, PA, USA
- Department of Genetics, University of Pennsylvania Perelman School of Medicine , Philadelphia, PA, USA
- Abramson Cancer Center, University of Pennsylvania Perelman School of Medicine , Philadelphia, PA, USA
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24
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Li H, Wang L, Li Z, Geng X, Li M, Tang Q, Wu C, Lu Z. SOX2 has dual functions as a regulator in the progression of neuroendocrine prostate cancer. J Transl Med 2020; 100:570-582. [PMID: 31772313 DOI: 10.1038/s41374-019-0343-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 10/18/2019] [Accepted: 10/21/2019] [Indexed: 12/14/2022] Open
Abstract
The mechanisms underlying the lineage switching from prostate adenocarcinoma (AdPC) to lethal neuroendocrine prostate cancer (NEPC) have yet to be completely elucidated. In this study, RNA sequencing data from a unique patient-derived xenograft NEPC model and a clinical NEPC cohort were used to identify the potential genes driving NEPC progression. Enrichr analysis resulted in the identification of SRY-related HMG-box gene 2 (SOX2) as a potential repressor that causes decrease in the expression of AdPC specific genes in NEPC. Assays involving the stable overexpression of SOX2 in LNCaP and CWR22RV1 cells validated this role of SOX2 in vitro. Mechanistic studies showed that the repressor role of SOX2 was attributed to the marked global hypomethylation of histone H3, which was driven by the activation of lysine-specific demethylase 1 (LSD1). Furthermore, Enrichr also predicted SOX2 as a driver gene involved in the upregulation of NEPC specific genes. However, SOX2 alone could only marginally induce the expression of some neuroendocrine markers in vitro, which was consistent with previous reports. Moreover, we also elucidated the molecular features of LNCaP-SOX2 cells that may confer resistance to androgen-deprivation therapy (ADT) and the inclination toward neuroendocrine transdifferentiation. The results of this study reveal a novel mechanism for SOX2 in the progression of NEPC via LSD1-mediated global epigenetic modulation. This discovery suggests that LSD1 may be a selective target for the prevention of NEPC progression.
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Affiliation(s)
- Haiying Li
- Department of Clinical Laboratory, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, PR China
| | - Lili Wang
- Department of Clinical Laboratory, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, PR China
| | - Zhang Li
- Department of Clinical Laboratory, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, PR China
| | - Xu Geng
- Department of Clinical Laboratory, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, PR China
| | - Ming Li
- Department of Clinical Laboratory, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, PR China
| | - Qi Tang
- Department of Clinical Laboratory, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, PR China
| | - Chunxiao Wu
- Department of Clinical Laboratory, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, PR China.
| | - Zhiming Lu
- Department of Clinical Laboratory, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, PR China.
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Piao L, Li H, Feng Y, Li X, Cui Y, Xuan Y. Leucine Zipper-EF-Hand Containing Transmembrane Protein 1 Is a Potential Prognostic Biomarker and Promotes Cell Progression in Prostate Cancer. Cancer Manag Res 2020; 12:1649-1660. [PMID: 32184668 PMCID: PMC7064284 DOI: 10.2147/cmar.s236482] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 02/02/2020] [Indexed: 12/22/2022] Open
Abstract
Purpose The leucine zipper-EF-hand containing transmembrane protein 1 (LETM1) is a mitochondrial protein that has been associated with the occurrence and development of malignant tumors. Previous studies have shown that LETM1 expression is increased in several types of human cancer and is associated with a poor clinical outcome. However, the role of LETM1 in prostate cancer (PCa) has not yet been determined. In this study, we investigated the clinicopathological significance of LETM1 expression and its role in PCa progression. Methods We assessed the expression of LETM1 and genes related to cancer stemness, epithelial-mesenchymal transition (EMT), cell cycle, and PI3K/Akt signaling in 133 paraffin-embedded PCa tissue samples and cancer cells by using immunohistochemistry, immunofluorescence, and Western blotting. Results LETM1 expression was significantly increased in PCa, and it was positively correlated with Gleason score, pathologic tumor (pT) stage, clinical stage, and high microvessel density. Survival analysis showed that patients with PCa with a high level of LETM1 expression exhibited a low overall survival. Cox regression analysis indicated that LETM1 is an independent poor prognostic PCa factor. Additionally, the expression of LETM1 was correlated with cancer cell stemness-associated genes, EMT-related genes, cell cycle regulatory genes, and PI3K/Akt signaling gene expression in PCa. Furthermore, knocking down LETM1 expression down-regulated the expression of stemness-related proteins, while inhibiting tumor spheroid formation, EMT-like changes, cell proliferation, migration, and invasion in PCa cells. Importantly, the PI3K inhibitor LY294002 strongly inhibited the expression of LETM1, pPI3K-p85, and pAkt (Thr308, Ser473) in PCa cells. Conclusion These results indicate that LETM1 expression is associated with cancer cell stemness, promotes EMT-like changes and cell proliferation and is a potential prognostic biomarker for PCa.
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Affiliation(s)
- Lihua Piao
- Institute for Regenerative Medicine, Yanbian University College of Medicine, Yanji 133002, Jilin Province, People's Republic of China
| | - Haoyue Li
- Institute for Regenerative Medicine, Yanbian University College of Medicine, Yanji 133002, Jilin Province, People's Republic of China.,Department of Pathology, Yanbian University College of Medicine, Yanji 133002, Jilin Province, People's Republic of China
| | - Ying Feng
- Institute for Regenerative Medicine, Yanbian University College of Medicine, Yanji 133002, Jilin Province, People's Republic of China.,Department of Pathology, Yanbian University College of Medicine, Yanji 133002, Jilin Province, People's Republic of China
| | - Xiaogang Li
- Department of Urology, Yanbian University Affiliated Hospital, Yanji 133002, Jilin Province, People's Republic of China
| | - Yan Cui
- Department of Oncology, Yanbian University Affiliated Hospital, Yanji 133002, Jilin Province, People's Republic of China
| | - Yanhua Xuan
- Institute for Regenerative Medicine, Yanbian University College of Medicine, Yanji 133002, Jilin Province, People's Republic of China.,Department of Pathology, Yanbian University College of Medicine, Yanji 133002, Jilin Province, People's Republic of China
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26
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Androgen receptor-binding sites are highly mutated in prostate cancer. Nat Commun 2020; 11:832. [PMID: 32047165 PMCID: PMC7012874 DOI: 10.1038/s41467-020-14644-y] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Accepted: 01/20/2020] [Indexed: 12/20/2022] Open
Abstract
Androgen receptor (AR) signalling is essential in nearly all prostate cancers. Any alterations to AR-mediated transcription can have a profound effect on carcinogenesis and tumor growth. While mutations of the AR protein have been extensively studied, little is known about those somatic mutations that occur at the non-coding regions where AR binds DNA. Using clinical whole genome sequencing, we show that AR binding sites have a dramatically increased rate of mutations that is greater than any other transcription factor and specific to only prostate cancer. Demonstrating this may be common to lineage-specific transcription factors, estrogen receptor binding sites were also found to have elevated rate of mutations in breast cancer. We provide evidence that these mutations at AR binding sites, and likely other related transcription factors, are caused by faulty repair of abasic sites. Overall, this work demonstrates that non-coding AR binding sites are frequently mutated in prostate cancer and can impact enhancer activity.
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Abstract
If the genome contains outlier sequences extraordinarily sensitive to environmental agents, these would be sentinels for monitoring personal carcinogen exposure and might drive direct changes in cell physiology rather than acting through rare mutations. New methods, adductSeq and freqSeq, provided statistical resolution to quantify rare lesions at single-base resolution across the genome. Primary human melanocytes, but not fibroblasts, carried spontaneous apurinic sites and TG sequence lesions more frequent than ultraviolet (UV)-induced cyclobutane pyrimidine dimers (CPDs). UV exposure revealed hyperhotspots acquiring CPDs up to 170-fold more frequently than the genomic average; these sites were more prevalent in melanocytes. Hyperhotspots were disproportionately located near genes, particularly for RNA-binding proteins, with the most-recurrent hyperhotspots at a fixed position within 2 motifs. One motif occurs at ETS family transcription factor binding sites, known to be UV targets and now shown to be among the most sensitive in the genome, and at sites of mTOR/5' terminal oligopyrimidine-tract translation regulation. The second occurs at A2-15TTCTY, which developed "dark CPDs" long after UV exposure, repaired CPDs slowly, and had accumulated CPDs prior to the experiment. Motif locations active as hyperhotspots differed between cell types. Melanocyte CPD hyperhotspots aligned precisely with recurrent UV signature mutations in individual gene promoters of melanomas and with known cancer drivers. At sunburn levels of UV exposure, every cell would have a hyperhotspot CPD in each of the ∼20 targeted cell pathways, letting hyperhotspots act as epigenetic marks that create phenome instability; high prevalence favors cooccurring mutations, which would allow tumor evolution to use weak drivers.
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Lysophosphatidic Acid Receptor 6 (LPAR6) Expression and Prospective Signaling Pathway Analysis in Breast Cancer. Mol Diagn Ther 2019; 23:127-138. [PMID: 30694446 DOI: 10.1007/s40291-019-00384-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND AND OBJECTIVE Lysophosphatidic acid (LPA) has widely been reported to participate in the numerous biological behaviors of tumors through its receptors. LPA receptor 6 (LPAR6) is a newly identified G protein-coupled receptor of LPA, and few studies have explored the role of LPAR6 in cancer. In breast cancer (BC), LPAR6 has not, as yet, been studied. This study aimed to evaluate LPAR6 expression in BC patients and to explore its possible role in BC. METHODS A total of 98 pairs of clinical BC and para-cancer tissues were collected, and LPAR6 expression was evaluated by quantitative real-time polymerase chain reaction (qRT-PCR). Kaplan-Meier plots were employed for survival analysis. Human BC cell lines were cultured to study decitabine (5-aza-2'-deoxycytidine [5-Aza]) intervention. Bioinformatic analyses were carried out to support the study conclusions and predictions. RESULTS LPAR6 expression was significantly reduced in BC tissues (p < 0.001). In the analysis of clinical parameters, LPAR6 expression was related to BC molecular classification (p < 0.05). Furthermore, patients with higher LPAR6 expression had better prognoses (p < 0.001). The CpG islands of LPAR6 were hypermethylated in BC tissues relative to those in para-cancer tissues (p < 0.01). 5-Aza significantly upregulated LPAR6 expression in BC cell lines. Additionally, LPAR6 knockdown significantly promoted cell migration and proliferation in the ZR-75-1 cell line (p < 0.001). Finally, through Gene Set Enrichment Analysis (GSEA), LPAR6 was found to be negatively correlated with cancer-promoting factors and positively correlated with tumor-suppressing factors. CONCLUSION LPAR6 was downregulated in BC, and low LPAR6 expression was related to poor prognosis. The anti-tumor drug 5-Aza significantly upregulated LPAR6 expression in vitro, and LPAR6 might act as a tumor suppressor in BC.
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29
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Natesan R, Aras S, Effron SS, Asangani IA. Epigenetic Regulation of Chromatin in Prostate Cancer. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1210:379-407. [PMID: 31900918 DOI: 10.1007/978-3-030-32656-2_17] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Epigenetics refers to mitotically/meiotically heritable mechanisms that regulate gene transcription without a need for changes in the DNA code. Covalent modifications of DNA, in the form of methylation, and histone post-translational modifications, in the form of acetylation and methylation, constitute the epigenetic code of a cell. Both DNA and histone modifications are highly dynamic and often work in unison to define the epigenetic state of a cell. Most epigenetic mechanisms regulate gene transcription by affecting localized/genome-wide transitions between heterochromatin and euchromatin states, thereby altering the accessibility of the transcriptional machinery and in turn, reduce/increase transcriptional output. Altered chromatin structure is associated with cancer progression, and epigenetic plasticity primarily governs the resistance of cancer cells to therapeutic agents. In this chapter, we specifically focus on regulators of histone methylation and acetylation, the two well-studied chromatin post-translational modifications, in the context of prostate cancer.
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Affiliation(s)
- Ramakrishnan Natesan
- Department of Cancer Biology, Abramson Family Cancer Research Institute, Epigenetics Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Shweta Aras
- Department of Cancer Biology, Abramson Family Cancer Research Institute, Epigenetics Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Samuel Sander Effron
- Department of Cancer Biology, Abramson Family Cancer Research Institute, Epigenetics Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Irfan A Asangani
- Department of Cancer Biology, Abramson Family Cancer Research Institute, Epigenetics Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
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30
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Yang GJ, Lei PM, Wong SY, Ma DL, Leung CH. Pharmacological Inhibition of LSD1 for Cancer Treatment. Molecules 2018; 23:E3194. [PMID: 30518104 PMCID: PMC6320820 DOI: 10.3390/molecules23123194] [Citation(s) in RCA: 88] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 11/30/2018] [Accepted: 11/30/2018] [Indexed: 12/20/2022] Open
Abstract
Lysine-specific demethylase 1A (LSD1, also named KDM1A) is a demethylase that can remove methyl groups from histones H3K4me1/2 and H3K9me1/2. It is aberrantly expressed in many cancers, where it impedes differentiation and contributes to cancer cell proliferation, cell metastasis and invasiveness, and is associated with inferior prognosis. Pharmacological inhibition of LSD1 has been reported to significantly attenuate tumor progression in vitro and in vivo in a range of solid tumors and acute myeloid leukemia. This review will present the structural aspects of LSD1, its role in carcinogenesis, a comparison of currently available approaches for screening LSD1 inhibitors, a classification of LSD1 inhibitors, and its potential as a drug target in cancer therapy.
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Affiliation(s)
- Guan-Jun Yang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao 999078, China.
| | - Pui-Man Lei
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao 999078, China.
| | - Suk-Yu Wong
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong 999077, China.
| | - Dik-Lung Ma
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong 999077, China.
| | - Chung-Hang Leung
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao 999078, China.
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31
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Lange T, Oh-Hohenhorst SJ, Joosse SA, Pantel K, Hahn O, Gosau T, Dyshlovoy SA, Wellbrock J, Feldhaus S, Maar H, Gehrcke R, Kluth M, Simon R, Schlomm T, Huland H, Schumacher U. Development and Characterization of a Spontaneously Metastatic Patient-Derived Xenograft Model of Human Prostate Cancer. Sci Rep 2018; 8:17535. [PMID: 30510249 PMCID: PMC6277427 DOI: 10.1038/s41598-018-35695-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Accepted: 11/09/2018] [Indexed: 12/15/2022] Open
Abstract
Here we describe the establishment and characterization of an AR+, PSMA+, ERG+, PTEN-/-, CHD1+/- patient-derived xenograft (PDX) model termed 'C5', which has been developed from a 60 years old patient suffering from castration-resistant prostate cancer (CRPC). The patient underwent radical prostatectomy, showed early tumor marker PSA recurrence and, one year after surgery, abiraterone resistance. Subcutaneous C5 tumors can be serially transplanted between mice and grow within ~90 days to 1.5-2 cm³ tumors in SCID Balb/c mice (take rate 100%), NOD-scid IL2Rgnull (NSG) mice (100%) and C57BL/6 pfp-/-/rag2-/- mice (66%). In contrast, no tumor growth is observed in female mice. C5 tumors can be cryopreserved and show the same growth characteristics in vivo afterwards. C5 tumor cells do not grow stably in vitro, neither under two- nor three-dimensional cell culture conditions. Upon serial transplantation, some C5 tumors spontaneously disseminated to distant sites with an observable trend towards higher metastatic cell loads in scid compared to NSG mice. Lung metastases could be verified by histology by means of anti-PSMA immunohistochemistry, exclusively demonstrating single disseminated tumor cells (DTCs) and micro-metastases. Upon surgical resection of the primary tumors, such pulmonary foci rarely grew out to multi-cellular metastatic colonies despite doubled overall survival span. In the brain and bone marrow, the metastatic cell load present at surgery even disappeared during the post-surgical period. We provide shallow whole genome sequencing and whole exome sequencing data of C5 tumors demonstrating the copy number aberration/ mutation status of this PCa model and proving genomic stability over several passages. Moreover, we analyzed genomic and transcriptomic alterations during metastatic progression achieved by serial transplantation. This study describes a novel PCa PDX model that enables future research on several aspects of metastatic PCa, particularly for the AR+ , ERG+ , PTEN-/- PCa subtype.
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Affiliation(s)
- Tobias Lange
- Institute of Anatomy and Experimental Morphology, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany.
| | - Su Jung Oh-Hohenhorst
- Martini-Clinic, Prostate Cancer Center, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Simon A Joosse
- Department of Tumor Biology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Klaus Pantel
- Department of Tumor Biology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Oliver Hahn
- Department of Urology, University Medical Center Goettingen, Robert-Koch-Strasse 40, 37075, Goettingen, Germany
| | - Tobias Gosau
- Institute of Anatomy and Experimental Morphology, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
| | - Sergey A Dyshlovoy
- Laboratory of Experimental Oncology, Department of Oncology, Hematology and Bone Marrow Transplantation with Section Pneumology, Hubertus Wald-Tumorzentrum, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.,School of Natural Sciences, Far Eastern Federal University, Vladivostok, Russian Federation
| | - Jasmin Wellbrock
- Department of Oncology, Hematology and Bone Marrow Transplantation with Section Pneumology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Susanne Feldhaus
- Institute of Anatomy and Experimental Morphology, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
| | - Hanna Maar
- Institute of Anatomy and Experimental Morphology, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
| | - Renate Gehrcke
- Institute of Anatomy and Experimental Morphology, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
| | - Martina Kluth
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Ronald Simon
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Thorsten Schlomm
- Martini-Clinic, Prostate Cancer Center, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.,Department of Urology, Charité University Hospital, Berlin, Germany
| | - Hartwig Huland
- Martini-Clinic, Prostate Cancer Center, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Udo Schumacher
- Institute of Anatomy and Experimental Morphology, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
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32
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Zhang W, Chen JH, Shan T, Aguilera-Barrantes I, Wang LS, Huang THM, Rader JS, Sheng X, Huang YW. miR-137 is a tumor suppressor in endometrial cancer and is repressed by DNA hypermethylation. J Transl Med 2018; 98:1397-1407. [PMID: 29955087 PMCID: PMC6214735 DOI: 10.1038/s41374-018-0092-x] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Revised: 05/09/2018] [Accepted: 05/11/2018] [Indexed: 01/24/2023] Open
Abstract
Endometrial cancer is the most common gynecological cancer in the United States. We wanted to identify epigenetic aberrations involving microRNAs (miRNAs), whose genes become hypermethylated in endometrial primary tumors. By integrating known miRNA sequences from the miRNA database (miRBase) with DNA methylation data from methyl-CpG-capture sequencing, we identified 111 differentially methylated regions (DMRs) associated with CpG islands (CGIs) and miRNAs. Among them, 22 DMRs related to 29 miRNAs and within 8 kb of CGIs were hypermethylated in endometrial tumors but not in normal endometrium. miR-137 was further validated in additional endometrial primary tumors. Hypermethylation of miR-137 was found in both endometrioid and serous endometrial cancer (P < 0.01), and it led to the loss of miR-137 expression. Treating hypermethylated endometrial cancer cells with epigenetic inhibitors reactivated miR-137. Moreover, genetic overexpression of miR-137 suppressed cancer cell proliferation and colony formation in vitro. When transfected cancer cells were implanted into nude mice, the cells that overexpressed miR-137 grew more slowly and formed smaller tumors (P < 0.05) than vector transfectants. Histologically, xenograft tumors from cancer cells expressing miR-137 were less proliferative (P < 0.05), partly due to inhibition of EZH2 and LSD1 expression (P < 0.01) in both the transfected cancer cells and tumors. Reporter assays indicated that miR-137 targets EZH2 and LSD1. These results suggest that miR-137 is a tumor suppressor that is repressed in endometrial cancer because the promoter of its gene becomes hypermethylated.
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Affiliation(s)
- Wei Zhang
- Department of Gynecology Oncology, Shandong Provincial Cancer Hospital, Jinan, Shandong, China,Department of Obstetrics and Gynecology, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Jo-Hsin Chen
- Department of Obstetrics and Gynecology, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Tianjiao Shan
- Department of Gynecology Oncology, Shandong Provincial Cancer Hospital, Jinan, Shandong, China,Department of Obstetrics and Gynecology, Medical College of Wisconsin, Milwaukee, WI, USA
| | | | - Li-Shu Wang
- Division of Hematology and Oncology, Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Tim Hui-Ming Huang
- Department of Molecular Medicine, and Cancer Therapy & Research Center, University of Texas Health Science Center, San Antonio, TX, USA
| | - Janet S. Rader
- Department of Obstetrics and Gynecology, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Xiugui Sheng
- Department of Gynecology Oncology, Shandong Provincial Cancer Hospital, Jinan, Shandong, China. .,Cancer Hospital of Chinese Academy of Medical Sciences, Shenzhen Center, Chaoyang Qu, Beijing Shi, China.
| | - Yi-Wen Huang
- Department of Obstetrics and Gynecology, Medical College of Wisconsin, Milwaukee, WI, USA.
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McAuley JR, Freeman TJ, Ekambaram P, Lucas PC, McAllister-Lucas LM. CARMA3 Is a Critical Mediator of G Protein-Coupled Receptor and Receptor Tyrosine Kinase-Driven Solid Tumor Pathogenesis. Front Immunol 2018; 9:1887. [PMID: 30158935 PMCID: PMC6104486 DOI: 10.3389/fimmu.2018.01887] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2018] [Accepted: 07/31/2018] [Indexed: 12/22/2022] Open
Abstract
The CARMA–Bcl10–MALT1 (CBM) signalosome is an intracellular protein complex composed of a CARMA scaffolding protein, the Bcl10 linker protein, and the MALT1 protease. This complex was first recognized because the genes encoding its components are targeted by mutation and chromosomal translocation in lymphoid malignancy. We now know that the CBM signalosome plays a critical role in normal lymphocyte function by mediating antigen receptor-dependent activation of the pro-inflammatory, pro-survival NF-κB transcription factor, and that deregulation of this signaling complex promotes B-cell lymphomagenesis. More recently, we and others have demonstrated that a CBM signalosome also operates in cells outside of the immune system, including in several solid tumors. While CARMA1 (also referred to as CARD11) is expressed primarily within lymphoid tissues, the related scaffolding protein, CARMA3 (CARD10), is more widely expressed and participates in a CARMA3-containing CBM complex in a variety of cell types. The CARMA3-containing CBM complex operates downstream of specific G protein-coupled receptors (GPCRs) and/or growth factor receptor tyrosine kinases (RTKs). Since inappropriate expression and activation of GPCRs and/or RTKs underlies the pathogenesis of several solid tumors, there is now great interest in elucidating the contribution of CARMA3-mediated cellular signaling in these malignancies. Here, we summarize the key discoveries leading to our current understanding of the role of CARMA3 in solid tumor biology and highlight the current gaps in our knowledge.
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Affiliation(s)
- J Randall McAuley
- Department of Pediatrics, Division of Pediatric Hematology-Oncology, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States.,Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
| | - Tanner J Freeman
- Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
| | - Prasanna Ekambaram
- Department of Pediatrics, Division of Pediatric Hematology-Oncology, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
| | - Peter C Lucas
- Department of Pediatrics, Division of Pediatric Hematology-Oncology, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States.,Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
| | - Linda M McAllister-Lucas
- Department of Pediatrics, Division of Pediatric Hematology-Oncology, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
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Knockdown of long non-coding RNA XIST inhibits cell viability and invasion by regulating miR-137/PXN axis in non-small cell lung cancer. Int J Biol Macromol 2018; 111:623-631. [PMID: 29337100 DOI: 10.1016/j.ijbiomac.2018.01.022] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Revised: 11/20/2017] [Accepted: 01/04/2018] [Indexed: 12/31/2022]
Abstract
Long non-coding RNAs (lncRNAs) may serve as miRNA sponges to modulate the expressions of miRNA target genes. LncRNA X-inactive specific transcript (XIST) has been demonstrated to be upregulated and act as an oncogene in non-small cell lung cancer (NSCLC). However, the sponge role of XIST in NSCLC progression remains largely unknown. In this study, we demonstrated that XIST was substantially upregulated and miR-137 was aberrantly downregulated in NSCLC tissues and cells. XIST was identified to function as a competitive endogenous RNA (ceRNA) for miR-137 to promote NSCLC cell viability and invasion. Additionally, our results suggested that miR-137 targeted the 3'UTR of paxillin (PXN) to suppress NSCLC cell viability and invasion. Meanwhile, miR-137 was negatively correlated with PXN expression while XIST was positively correlated with PXN expression. More importantly, XIST positively regulated PXN levels by sponging miR-137 in vitro and in vivo. Collectively, our study provided the evidence for the cross-talk between XIST, miR-137, and PXN, shedding light on the therapy for NSCLC.
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Younis S, Rashid S. Alpha conotoxin-BuIA globular isomer is a competitive antagonist for oleoyl-L-alpha-lysophosphatidic acid binding to LPAR6; A molecular dynamics study. PLoS One 2017; 12:e0189154. [PMID: 29211777 PMCID: PMC5718415 DOI: 10.1371/journal.pone.0189154] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Accepted: 11/20/2017] [Indexed: 11/19/2022] Open
Abstract
Lysophosphatidic acid receptor 6 (LPAR6) is a G-protein coupled receptor (GPCR) involved in hair development and cytoskeleton formation in mammals. Its proliferation is implicated in several forms of cancer including liver cancer, squamous cell carcinoma and metastatic prostate cancer. Current study emphasizes the isolation of competitive non-lipid and stable peptide antagonists for Lysophosphatidic acid ligand. A total of 148 conotoxin structures were characterized for their binding abilities against LPAR6. Subsequently, top 10 conotoxins were selected on the basis of binding energy values, residual contributions and conformational cluster saturations. BuIA (a member of Alpha- conotoxins family), contryphan-R and contryphan-Lo (Synthetic class) conotoxins, exhibiting efficient binding parameters were subjected to molecular dynamics simulation assays and topology analysis. We propose that BuIA might be a potent antagonist due to its predominant binding at the extracellular region of LPAR6. Current study provides a backbone for understanding structural and functional insights of LPAR6 and findings of this study may be helpful in designing novel therapeutic targets for the treatment of cancers caused by elevated LPAR6 expression.
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Affiliation(s)
- Saima Younis
- National Center for Bioinformatics, Quaid-i-Azam University, Islamabad, Pakistan
| | - Sajid Rashid
- National Center for Bioinformatics, Quaid-i-Azam University, Islamabad, Pakistan
- * E-mail:
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Structural insights into ligand recognition by the lysophosphatidic acid receptor LPA6. Nature 2017; 548:356-360. [DOI: 10.1038/nature23448] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Accepted: 06/28/2017] [Indexed: 01/27/2023]
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Quan M, Cui JJ, Feng X, Huang Q. The critical role and potential target of the autotaxin/lysophosphatidate axis in pancreatic cancer. Tumour Biol 2017; 39:1010428317694544. [PMID: 28347252 DOI: 10.1177/1010428317694544] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Autotaxin, an ecto-lysophospholipase D encoded by the human ENNP2 gene, is expressed in multiple tissues, and participates in numerous critical physiologic and pathologic processes including inflammation, pain, obesity, embryo development, and cancer via the generation of the bioactive lipid lysophosphatidate. Overwhelming evidences indicate that the autotaxin/lysophosphatidate signaling axis serves key roles in the numerous processes central to tumorigenesis and progression, including proliferation, survival, migration, invasion, metastasis, cancer stem cell, tumor microenvironment, and treatment resistance by interacting with a series of at least six G-protein-coupled receptors (LPAR1-6). This review provides an overview of the autotaxin/lysophosphatidate axis and collates current knowledge regarding its specific role in pancreatic cancer. With a deeper understanding of the critical role of the autotaxin/lysophosphatidate axis in pancreatic cancer, targeting autotaxin or lysophosphatidate receptor may be a potential and promising strategy for cancer therapy.
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Affiliation(s)
- Ming Quan
- Cancer Center, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, P.R. China
| | - Jiu-Jie Cui
- Cancer Center, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, P.R. China
| | - Xiao Feng
- Cancer Center, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, P.R. China
| | - Qian Huang
- Cancer Center, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, P.R. China
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Lian SX, Shao YB, Liu HB, He JY, Lu WQ, Zhang Y, Jiang Y, Zhu J. Lysine-specific demethylase 1 promotes tumorigenesis and predicts prognosis in gallbladder cancer. Oncotarget 2016; 6:33065-76. [PMID: 26460616 PMCID: PMC4741749 DOI: 10.18632/oncotarget.5279] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2015] [Accepted: 09/28/2015] [Indexed: 12/12/2022] Open
Abstract
Gallbladder Cancer (GBC), characterized by invasive growth and infiltrative dissemination, is difficult to diagnose and has poor prognosis. Emerging evidence demonstrates that Lysine-Specific Demethylase 1 (LSD1) has important roles in carcinogenesis, proliferation and metastasis. We studied the roles and molecular mechanisms of LSD1 in GBC. We examined LSD1 expression in 109 paired samples of GBC and normal gallbladder tissues. We found GBC tissues had upregulated LSD1 compared with normal gallbladder tissues (P = 0.003), and its high expression was associated with tumor-node-metastasis stage (P < 0.0001), Nevin's stage (P = 0.0093) and distant metastases (P = 0.0070). We found positive correlations between LSD1 expression and other proteins: epithelial-mesenchymal transition markers, C-myc and cyclin-related proteins. Inhibiting LSD1 expression in vitro impaired the proliferation and invasiveness of GBC cells and also downregulated c-myc expression and consequently inhibited GBC cell proliferation. LSD1 overexpression promotes GBC development and may be a predictor for a worsened prognosis. LSD1 may be a novel therapeutic target and prognostic tool for gallbladder cancer.
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Affiliation(s)
- Shi Xian Lian
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Ye Bo Shao
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Hou Bao Liu
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Jun Yi He
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Wei Qi Lu
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Yong Zhang
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Ying Jiang
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Jun Zhu
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China
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Yi L, Cui Y, Xu Q, Jiang Y. Stabilization of LSD1 by deubiquitinating enzyme USP7 promotes glioblastoma cell tumorigenesis and metastasis through suppression of the p53 signaling pathway. Oncol Rep 2016; 36:2935-2945. [DOI: 10.3892/or.2016.5099] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Accepted: 08/22/2016] [Indexed: 11/06/2022] Open
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40
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Tsigelny IF, Kouznetsova VL, Lian N, Kesari S. Molecular mechanisms of OLIG2 transcription factor in brain cancer. Oncotarget 2016; 7:53074-53101. [PMID: 27447975 PMCID: PMC5288170 DOI: 10.18632/oncotarget.10628] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Accepted: 06/03/2016] [Indexed: 12/13/2022] Open
Abstract
Oligodendrocyte lineage transcription factor 2 (OLIG2) plays a pivotal role in glioma development. Here we conducted a comprehensive study of the critical gene regulatory networks involving OLIG2. These include the networks responsible for OLIG2 expression, its translocation to nucleus, cell cycle, epigenetic regulation, and Rho-pathway interactions. We described positive feedback loops including OLIG2: loops of epigenetic regulation and loops involving receptor tyrosine kinases. These loops may be responsible for the prolonged oncogenic activity of OLIG2. The proposed schemes for epigenetic regulation of the gene networks involving OLIG2 are confirmed by patient survival (Kaplan-Meier) curves based on the cancer genome atlas (TCGA) datasets. Finally, we elucidate the Coherent-Gene Modules (CGMs) networks-framework of OLIG2 involvement in cancer. We showed that genes interacting with OLIG2 formed eight CGMs having a set of intermodular connections. We showed also that among the genes involved in these modules the most connected hub is EGFR, then, on lower level, HSP90 and CALM1, followed by three lower levels including epigenetic genes KDM1A and NCOR1. The genes on the six upper levels of the hierarchy are involved in interconnections of all eight CGMs and organize functionally defined gene-signaling subnetworks having specific functions. For example, CGM1 is involved in epigenetic control. CGM2 is significantly related to cell proliferation and differentiation. CGM3 includes a number of interconnected helix-loop-helix transcription factors (bHLH) including OLIG2. Many of these TFs are partially controlled by OLIG2. The CGM4 is involved in PDGF-related: angiogenesis, tumor cell proliferation and differentiation. These analyses provide testable hypotheses and approaches to inhibit OLIG2 pathway and relevant feed-forward and feedback loops to be interrogated. This broad approach can be applied to other TFs.
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Affiliation(s)
- Igor F. Tsigelny
- Department of Neurosciences, University of California San Diego, La Jolla, 92093-0752, CA, USA
- San Diego Supercomputer Center, University of California San Diego, La Jolla, 92093-0505, CA, USA
- Moores Cancer Center, University of California San Diego, La Jolla, 92093, CA, USA
| | - Valentina L. Kouznetsova
- San Diego Supercomputer Center, University of California San Diego, La Jolla, 92093-0505, CA, USA
- Moores Cancer Center, University of California San Diego, La Jolla, 92093, CA, USA
| | - Nathan Lian
- REHS, San Diego Supercomputer Center, University of California San Diego, La Jolla, 92093-0505, CA, USA
| | - Santosh Kesari
- John Wayne Cancer Institute at Providence Saint John's Health Center, Santa Monica, 90404, CA, USA
- Pacific Neuroscience Institute at Providence Saint John's Health Center, Santa Monica, 90404, CA, USA
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Palaniappan A, Ramar K, Ramalingam S. Computational Identification of Novel Stage-Specific Biomarkers in Colorectal Cancer Progression. PLoS One 2016; 11:e0156665. [PMID: 27243824 PMCID: PMC4887059 DOI: 10.1371/journal.pone.0156665] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Accepted: 05/17/2016] [Indexed: 12/19/2022] Open
Abstract
It is well-known that the conversion of normal colon epithelium to adenoma and then to carcinoma stems from acquired molecular changes in the genome. The genetic basis of colorectal cancer has been elucidated to a certain extent, and much remains to be known about the identity of specific cancer genes that are associated with the advancement of colorectal cancer from one stage to the next. Here in this study we attempted to identify novel cancer genes that could underlie the stage-specific progression and metastasis of colorectal cancer. We conducted a stage-based meta-analysis of the voluminous tumor genome-sequencing data and mined using multiple approaches for novel genes driving the progression to stage-II, stage-III and stage-IV colorectal cancer. The consensus of these driver genes seeded the construction of stage-specific networks, which were then analyzed for the centrality of genes, clustering of subnetworks, and enrichment of gene-ontology processes. Our study identified three novel driver genes as hubs for stage-II progression: DYNC1H1, GRIN2A, GRM1. Four novel driver genes were identified as hubs for stage-III progression: IGF1R, CPS1, SPTA1, DSP. Three novel driver genes were identified as hubs for stage-IV progression: GSK3B, GGT1, EIF2B5. We also identified several non-driver genes that appeared to underscore the progression of colorectal cancer. Our study yielded potential diagnostic biomarkers for colorectal cancer as well as novel stage-specific drug targets for rational intervention. Our methodology is extendable to the analysis of other types of cancer to fill the gaps in our knowledge.
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Affiliation(s)
- Ashok Palaniappan
- Faculty of Allied Health Sciences, Chettinad Academy of Research and Education, Kelambakkam, Tamil Nadu 603103, India
- * E-mail:
| | - Karthick Ramar
- Faculty of Allied Health Sciences, Chettinad Academy of Research and Education, Kelambakkam, Tamil Nadu 603103, India
| | - Satish Ramalingam
- Faculty of Allied Health Sciences, Chettinad Academy of Research and Education, Kelambakkam, Tamil Nadu 603103, India
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Zheng YC, Yu B, Chen ZS, Liu Y, Liu HM. TCPs: privileged scaffolds for identifying potent LSD1 inhibitors for cancer therapy. Epigenomics 2016; 8:651-66. [DOI: 10.2217/epi-2015-0002] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Since the first lysine-specific demethylase (KDM), lysine-specific demethylase 1 (LSD1), was characterized in 2004, several families of KDMs have been identified. LSD1 can specifically demethylate H3K4me1/2, H3K9me1/2 as well as some nonhistone substrates. It has been demonstrated to be an oncogene as well as a drug target. Hence, tens of small-molecule LSD1 inhibitors have been designed, synthesized and applied for cancer treatment. However, the two LSD1 inhibitors that have been advanced into early phase clinical trials are trans-2-phenylcyclopropylamine (TCP) derivatives, which indicate that TCP is a druggable scaffold for LSD1 inhibitor. Here, we review the design, synthesis and properties of reported TCP-based LSD1 inhibitors as well as their biological roles.
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Affiliation(s)
- Yi-Chao Zheng
- Key Laboratory of Advanced Pharmaceutical Technology, Ministry of Education of China; Co-innovation Center of Henan Province for New drug R&D & Preclinical Safety; Institute of Drug Discovery & Development, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, Henan 450001, China
| | - Bin Yu
- Key Laboratory of Advanced Pharmaceutical Technology, Ministry of Education of China; Co-innovation Center of Henan Province for New drug R&D & Preclinical Safety; Institute of Drug Discovery & Development, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, Henan 450001, China
| | - Zhe-Sheng Chen
- College of Pharmacy & Health Sciences, St. John’s University, 8000 Utopia Parkway, Queens, New York, NY 11439, USA
| | - Ying Liu
- Key Laboratory of Advanced Pharmaceutical Technology, Ministry of Education of China; Co-innovation Center of Henan Province for New drug R&D & Preclinical Safety; Institute of Drug Discovery & Development, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, Henan 450001, China
| | - Hong-Min Liu
- Key Laboratory of Advanced Pharmaceutical Technology, Ministry of Education of China; Co-innovation Center of Henan Province for New drug R&D & Preclinical Safety; Institute of Drug Discovery & Development, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, Henan 450001, China
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Jin H, Yu Y, Hu Y, Lu C, Li J, Gu J, Zhang L, Huang H, Zhang D, Wu XR, Gao J, Huang C. Divergent behaviors and underlying mechanisms of cell migration and invasion in non-metastatic T24 and its metastatic derivative T24T bladder cancer cell lines. Oncotarget 2016; 6:522-36. [PMID: 25402510 PMCID: PMC4381612 DOI: 10.18632/oncotarget.2680] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Accepted: 11/04/2014] [Indexed: 01/24/2023] Open
Abstract
Previous studies on cancer cell invasion were primarily focused on its migration because these two events were often considered biologically equivalent. Here we found that T24T cells exhibited higher invasion but lower migration abilities than T24 cells. Expression of Rho-GDPases was much lower and expression of SOD2 was much higher in T24T cells than those in T24 cells. Indeed, knockdown of SOD2 in T24T cells can reverse the cell migration but without affecting cell invasion. We also found that SOD2 inhibited the JNK/c-Jun cascade, and the inhibition of c-Jun activation by ectopic expression of TAM67 impaired Rho-GDPases expression and cell migration in T24T shSOD2 cells. Further, we found that Sp1 can upregulate SOD2 transcription in T24T cells. Importantly, matrix metalloproteinase-2 (MMP-2) was overexpressed in T24T and participated in increasing its invasion, and MMP-2 overexpression was mediated by increasing nuclear transport of nucleolin, which enhanced mmp-2 mRNA stability. Taken together, our study unravels an inverse relationship between cell migration and invasion in human bladder cancer T24T cells and suggests a novel mechanism underlying the divergent roles of SOD2 and MMP-2 in regulating metastatic behaviors of human bladder T24T in cell migration and invasion.
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Affiliation(s)
- Honglei Jin
- Zhejiang Provincial Key Laboratory for Technology & Application of Model Organisms, School of Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China. Nelson Institute of Environmental Medicine, New York University School of Medicine, Tuxedo, NY, USA
| | - Yonghui Yu
- Nelson Institute of Environmental Medicine, New York University School of Medicine, Tuxedo, NY, USA
| | - Young Hu
- Nelson Institute of Environmental Medicine, New York University School of Medicine, Tuxedo, NY, USA
| | - Chris Lu
- Nelson Institute of Environmental Medicine, New York University School of Medicine, Tuxedo, NY, USA
| | - Jingxia Li
- Nelson Institute of Environmental Medicine, New York University School of Medicine, Tuxedo, NY, USA
| | - Jiayan Gu
- Zhejiang Provincial Key Laboratory for Technology & Application of Model Organisms, School of Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Liping Zhang
- Zhejiang Provincial Key Laboratory for Technology & Application of Model Organisms, School of Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Haishan Huang
- Zhejiang Provincial Key Laboratory for Technology & Application of Model Organisms, School of Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China. Nelson Institute of Environmental Medicine, New York University School of Medicine, Tuxedo, NY, USA
| | - Dongyun Zhang
- Nelson Institute of Environmental Medicine, New York University School of Medicine, Tuxedo, NY, USA
| | - Xue-Ru Wu
- Departments of Urology and Pathology, New York University School of Medicine, New York, NY, USA. Veterans Affairs New York Harbor Healthcare System Manhattan Campus, New York, NY, USA
| | - Jimin Gao
- Zhejiang Provincial Key Laboratory for Technology & Application of Model Organisms, School of Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Chuanshu Huang
- Zhejiang Provincial Key Laboratory for Technology & Application of Model Organisms, School of Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China. Nelson Institute of Environmental Medicine, New York University School of Medicine, Tuxedo, NY, USA
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PRK1/PKN1 controls migration and metastasis of androgen-independent prostate cancer cells. Oncotarget 2015; 5:12646-64. [PMID: 25504435 PMCID: PMC4350344 DOI: 10.18632/oncotarget.2653] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2014] [Accepted: 10/26/2014] [Indexed: 12/20/2022] Open
Abstract
The major threat in prostate cancer is the occurrence of metastases in androgen-independent tumor stage, for which no causative cure is available. Here we show that metastatic behavior of androgen-independent prostate tumor cells requires the protein-kinase-C-related kinase (PRK1/PKN1) in vitro and in vivo. PRK1 regulates cell migration and gene expression through its kinase activity, but does not affect cell proliferation. Transcriptome and interactome analyses uncover that PRK1 regulates expression of migration-relevant genes by interacting with the scaffold protein sperm-associated antigen 9 (SPAG9/JIP4). SPAG9 and PRK1 colocalize in human cancer tissue and are required for p38-phosphorylation and cell migration. Accordingly, depletion of either ETS domain-containing protein Elk-1 (ELK1), an effector of p38-signalling or p38 depletion hinders cell migration and changes expression of migration-relevant genes as observed upon PRK1-depletion. Importantly, a PRK1 inhibitor prevents metastases in mice, showing that the PRK1-pathway is a promising target to hamper prostate cancer metastases in vivo.
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45
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Li X, Li T, Chen D, Zhang P, Song Y, Zhu H, Xiao Y, Xing Y. Overexpression of lysine-specific demethylase 1 promotes androgen-independent transition of human prostate cancer LNCaP cells through activation of the AR signaling pathway and suppression of the p53 signaling pathway. Oncol Rep 2015; 35:584-92. [PMID: 26534764 DOI: 10.3892/or.2015.4362] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Accepted: 09/23/2015] [Indexed: 11/05/2022] Open
Abstract
Lysine-specific demethylase 1 (LSD1) is the first defined histone demethylase, and was found to be closely correlated with the development and progression of various types of cancers, including prostate cancer (PCa). Previous research suggests that LSD1 is closely related with cell proliferation, angiogenesis, migration and invasion in PCa. However, it remains to be elucidated whether LSD1 is correlated with androgen-independent (AI) transition of PCa under androgen-ablated conditions. The present study aimed to investigate the correlation of LSD1 expression with AI transition of human androgen-dependent PCa LNCaP cells. Our data showed that LSD1 was overexpressed in human PCa specimens and in AI PCa LNCaP-AI cells, which were established through a three-month continuous culture of LNCaP cells in androgen-deprived medium. Under androgen-deprived conditions, LNCaP-AI cells grew perfectly with less apoptosis and G0/G1 cell cycle arrest. Overexpression of LSD1 protected the LNCaP cells from androgen deprivation-induced apoptosis and G0/G1 arrest, while knockdown of LSD1 drove LNCaP-AI cells into a higher rate of apoptosis and G0/G1 arrest. Furthermore, LSD1 was found to regulate the androgen receptor (AR) and p53 signaling pathways via demethylation, subsequently influencing apoptosis and cell cycle progression. These findings revealed that overexpression of LSD1 promoted AI transition of PCa LNCaP cells under androgen-ablated conditions via activation of the AR signaling pathway and suppression of the p53 signaling pathway.
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Affiliation(s)
- Xuechao Li
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Tao Li
- Department of Urology, Zhongda Hospital, Medical School, Southeast University, Nanjing, Jiangsu 210009, P.R. China
| | - Dehong Chen
- Department of Urology, Xiangyang Central Hospital, Xiangyang, Hubei 441021, P.R. China
| | - Peng Zhang
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Yarong Song
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Hongxue Zhu
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Yajun Xiao
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Yifei Xing
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
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Li D, Li Z, Xiong J, Gong B, Zhang G, Cao C, Jie Z, Liu Y, Cao Y, Yan Y, Xiong H, Qiu L, Yang M, Chen H, Jiang S, Yang X, Chen H. MicroRNA-212 functions as an epigenetic-silenced tumor suppressor involving in tumor metastasis and invasion of gastric cancer through down-regulating PXN expression. Am J Cancer Res 2015; 5:2980-2997. [PMID: 26693054 PMCID: PMC4656725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Accepted: 08/17/2015] [Indexed: 06/05/2023] Open
Abstract
Altered expression of paxillin (PXN) is closely linked to the pathogenesis progression, metastasis and prognosis of different malignancies including gastric cancer (GC). Epigenetic silencing of tumor-suppressive microRNAs (miRNAs) is a crucial component of the mechanism underlying activation of oncogenes in tumor. To screen for epigenetically silenced miRNAs which target PXN in GC, we performed bioinformatics algorithms and real-time PCR analysis, and identified miR-212 as the optimum candidate gene. A luciferase reporter gene assay validated that miR-212 directly targets the 3'UTR region of PXN. Importantly, miR-212 levels were inversely correlated with PXN expression in GC cell lines and clinical tumor tissues. The use of miR-212 minics decrease PXN mRNA and protein level in GC cell lines. Moreover, low expression of miR-212 and its promoter hypermethylation were causally related and were associated with aggressive tumor phenotype and adverse prognosis in GC. Restoring mir-212 expression by exogenous mirprecursor molecules transfection or reexpression of endogenous miR-212 treated by 5-aza-2'-deoxycytidine (5-aza) can exert similar effect that reduce GC cells invasion and metastasis abilities in vitro by interacting PXN gene. In addition, 5-aza-induced PXN reduction could be partically blocked by miR-212 inhibitor, resulting in a reversal of weankening cell migration and invasion ability of 5-aza. A rescue experiment and a loss-of-function experiment in vitro and vivo showed that PXN restoration rescues migration and invasion phenotype in miR-212 overexpressed GC cell lines and PXN knockdown blocks GC cells migration and invasion in the presence miR-212 inhibitors. Taken together, our results clearly show that overexpression of PXN induced by methylationsuppressed miR-212 promotes tumor metastasis and invasion, and regulation of miR-212 expression may be a novel therapeutic strategy for gastric cancer.
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Affiliation(s)
- Daojiang Li
- Department of Gastrointestinal Surgery, First Affiliated Hospital, Nanchang UniversityNanchang 330000, Jiangxi Province, China
- Nanchang University Medical CollegeNanchang 330000, Jiangxi Province, China
| | - Zhengrong Li
- Department of Gastrointestinal Surgery, First Affiliated Hospital, Nanchang UniversityNanchang 330000, Jiangxi Province, China
| | - Jianbo Xiong
- Department of Gastrointestinal Surgery, First Affiliated Hospital, Nanchang UniversityNanchang 330000, Jiangxi Province, China
- Nanchang University Medical CollegeNanchang 330000, Jiangxi Province, China
| | - Binbin Gong
- Nanchang University Medical CollegeNanchang 330000, Jiangxi Province, China
| | - Guoyang Zhang
- Department of Gastrointestinal Surgery, First Affiliated Hospital, Nanchang UniversityNanchang 330000, Jiangxi Province, China
- Nanchang University Medical CollegeNanchang 330000, Jiangxi Province, China
| | - Chao Cao
- Department of Gastrointestinal Surgery, First Affiliated Hospital, Nanchang UniversityNanchang 330000, Jiangxi Province, China
- Nanchang University Medical CollegeNanchang 330000, Jiangxi Province, China
| | - Zhigang Jie
- Department of Gastrointestinal Surgery, First Affiliated Hospital, Nanchang UniversityNanchang 330000, Jiangxi Province, China
| | - Yi Liu
- Department of Gastrointestinal Surgery, First Affiliated Hospital, Nanchang UniversityNanchang 330000, Jiangxi Province, China
| | - Yi Cao
- Department of Gastrointestinal Surgery, First Affiliated Hospital, Nanchang UniversityNanchang 330000, Jiangxi Province, China
| | - Yufeng Yan
- The Key Laboratory of Basic Pharmacology, School of Pharmaceutical Science, Nanchang UniversityNanchang 330006, Jiangxi Province, China
| | - Hong Xiong
- The Key Laboratory of Basic Pharmacology, School of Pharmaceutical Science, Nanchang UniversityNanchang 330006, Jiangxi Province, China
| | - Lingyu Qiu
- The Key Laboratory of Basic Pharmacology, School of Pharmaceutical Science, Nanchang UniversityNanchang 330006, Jiangxi Province, China
| | - Miantian Yang
- The Key Laboratory of Basic Pharmacology, School of Pharmaceutical Science, Nanchang UniversityNanchang 330006, Jiangxi Province, China
| | - Hongping Chen
- Department of Histology and Embryology, Medical College, Nanchang UniversityBayi Road 603, Nanchang 330006, China
| | - Shuping Jiang
- Department of Histology and Embryology, Medical College, Nanchang UniversityBayi Road 603, Nanchang 330006, China
| | - Xiongwen Yang
- Nanchang University Medical CollegeNanchang 330000, Jiangxi Province, China
| | - Heping Chen
- The Key Laboratory of Basic Pharmacology, School of Pharmaceutical Science, Nanchang UniversityNanchang 330006, Jiangxi Province, China
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Dynamic epigenetic regulation of glioblastoma tumorigenicity through LSD1 modulation of MYC expression. Proc Natl Acad Sci U S A 2015; 112:E4055-64. [PMID: 26159421 DOI: 10.1073/pnas.1501967112] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
The available evidence suggests that the lethality of glioblastoma is driven by small subpopulations of cells that self-renew and exhibit tumorigenicity. It remains unclear whether tumorigenicity exists as a static property of a few cells or as a dynamically acquired property. We used tumor-sphere and xenograft formation as assays for tumorigenicity and examined subclones isolated from established and primary glioblastoma lines. Our results indicate that glioblastoma tumorigenicity is largely deterministic, yet the property can be acquired spontaneously at low frequencies. Further, these dynamic transitions are governed by epigenetic reprogramming through the lysine-specific demethylase 1 (LSD1). LSD depletion increases trimethylation of histone 3 lysine 4 at the avian myelocytomatosis viral oncogene homolog (MYC) locus, which elevates MYC expression. MYC, in turn, regulates oligodendrocyte lineage transcription factor 2 (OLIG2), SRY (sex determining region Y)-box 2 (SOX2), and POU class 3 homeobox 2 (POU3F2), a core set of transcription factors required for reprogramming glioblastoma cells into stem-like states. Our model suggests epigenetic regulation of key transcription factors governs transitions between tumorigenic states and provides a framework for glioblastoma therapeutic development.
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Hoshino I, Akutsu Y, Murakami K, Akanuma N, Isozaki Y, Maruyama T, Toyozumi T, Matsumoto Y, Suito H, Takahashi M, Sekino N, Komatsu A, Suzuki T, Matsubara H. Histone Demethylase LSD1 Inhibitors Prevent Cell Growth by Regulating Gene Expression in Esophageal Squamous Cell Carcinoma Cells. Ann Surg Oncol 2015; 23:312-20. [PMID: 25791791 DOI: 10.1245/s10434-015-4488-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2014] [Indexed: 01/07/2023]
Abstract
BACKGROUND The expression of genes can be influenced by the balance of histone acetylation and/or histone demethylation, with an imbalance of these processes possibly observed in many cancers. The histone demethylase LSD1 inhibitor activity is associated with selective transcriptional regulation and alterations in the gene expression. However, the exact mechanisms underlying the antitumor effects of LSD1 inhibitors are not fully understood. METHODS The antitumor effects of NCL1, an LSD1 inhibitor, in esophageal squamous cell cancer (ESCC) cell lines were evaluated. A comprehensive analysis of the changes in the gene expression in ESCC cell lines induced by NCL1 was carried out using a microarray analysis. A loss-of-function assay using a siRNA analysis was performed to examine the oncogenic function of the gene. RESULTS NCL1 strongly inhibited the cell growth of T.Tn and TE2 ESCC cells and induced apoptosis. According to the microarray analysis, 81 genes in the T.Tn cells and 149 genes in the TE2 cells were up- or down-regulated 2-fold or more by NCL1 exposure. Among these genes, 27 were contained in both cell lines and exhibited similar expression patterns. PHLDB2, one of the genes down-regulated by NCL1, was overexpressed in the ESCC tumor tissues. Moreover, a high expression level of PHLDB2 was found to be significantly correlated with poor prognosis. CONCLUSIONS The present observations of the comprehensive analysis of the gene expression levels provide insight into the mechanisms underlying the antitumor effects of LSD1 inhibitors in ESCC patients.
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Affiliation(s)
- Isamu Hoshino
- Department of Frontier Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan.
| | - Yasunori Akutsu
- Department of Frontier Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Kentaro Murakami
- Department of Frontier Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Naoki Akanuma
- Department of Frontier Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Yuka Isozaki
- Department of Frontier Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Tetsuro Maruyama
- Department of Frontier Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Takeshi Toyozumi
- Department of Frontier Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Yasunori Matsumoto
- Department of Frontier Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Hiroshi Suito
- Department of Frontier Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Masahiko Takahashi
- Department of Frontier Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Nobufumi Sekino
- Department of Frontier Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Aki Komatsu
- Department of Frontier Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Takayoshi Suzuki
- Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Hisahiro Matsubara
- Department of Frontier Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
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Qin J, Wang F, Jiang H, Xu J, Jiang Y, Wang Z. MicroRNA-145 suppresses cell migration and invasion by targeting paxillin in human colorectal cancer cells. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2015; 8:1328-1340. [PMID: 25973017 PMCID: PMC4396207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 11/20/2014] [Accepted: 01/28/2015] [Indexed: 06/04/2023]
Abstract
A number of cancers show increased expression of paxillin which plays a central role in tumor progression, including colorectal cancer. However, the mechanisms causing paxillin upregulation remains unclear. In our study, bioinformatics analyses suggested that paxillin is predicted to be a direct target of miR-145. We firstly identified paxillin as a new target of miR-145 and demonstrated that miR-145 inhibits paxillin expression by binding to the paxillin mRNA 3'UTR. Therefore, we assume overexpression of paxillin induced by suppression of miR-145 may promote cell migration and invasion. We detected the expression of paxillin and miR-145 in human colorectal cancer tissues by real-time quantitative PCR. Higher expression of paxillin and lower expression of miR-145 was observed in colorectal cancer tissues than corresponding paracancerous tissue. Moreover, the expression of paxillin was negatively correlated with miR-145 expression. A dual-luciferase reporter assay was used to confirm that paxillin was a direct target of miR-145. In CRC cell lines, overexpression of miR-145 could downregulate paxillin protein expression levels, and ectopic overexpression of miR-145 mimics or inhibitor could inhibit or promote cell migration, invasion, proliferation and clone formation in vitro. Taken together, these data suggested that miR-145 plays a pivotal role in colon cancer through inhibiting cell proliferation migration and invasion, and miR-145 may serve as a tumor suppressor by targeting paxillin gene.
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Affiliation(s)
- Jun Qin
- Department of General Surgery, Affiliated Hospital of Nantong UniversityNantong 226001, Jiangsu Province, P. R. China
| | - Feiran Wang
- Department of General Surgery, Affiliated Hospital of Nantong UniversityNantong 226001, Jiangsu Province, P. R. China
| | - Haiyan Jiang
- Medical College of Nantong UniversityNantong 226001, Jiangsu Province, P. R. China
| | - Junfei Xu
- Department of General Surgery, Affiliated Hospital of Nantong UniversityNantong 226001, Jiangsu Province, P. R. China
| | - Yasu Jiang
- Department of General Surgery, Affiliated Hospital of Nantong UniversityNantong 226001, Jiangsu Province, P. R. China
| | - Zhiwei Wang
- Department of General Surgery, Affiliated Hospital of Nantong UniversityNantong 226001, Jiangsu Province, P. R. China
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