1
|
Bhattacharjee E, Thiruvengadam R, Ayushi, Das C, Wadhwa N, Natchu UCM, Kshetrapal P, Bhatnagar S, Majumder PP, Maitra A. Genetic variants associated with spontaneous preterm birth in women from India: a prospective cohort study. THE LANCET REGIONAL HEALTH. SOUTHEAST ASIA 2023; 14:100190. [PMID: 37492417 PMCID: PMC10363490 DOI: 10.1016/j.lansea.2023.100190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 10/28/2022] [Accepted: 03/23/2023] [Indexed: 07/27/2023]
Abstract
Background Despite having the highest number of preterm births globally, no genomic study on preterm birth was previously published from India or other South-Asian countries. Methods We conducted a genome-wide association (GWA) study of spontaneous preterm birth (sPTB) on 6211 women from India. We used a novel resampling procedure to identify the associated single nucleotide polymorphisms (SNPs) followed by haplotype association analysis and imputation. Findings We found that 512 maternal SNPs were associated with sPTB (p < 2.51e-3), of which minor allele at 19 SNPs (after Bonferroni correction) had increased genotype relative risk. Haplotypes containing six of the 19 SNPs (rs13011430, rs8179838, rs2327290, rs4798499, rs7629800, and rs13180906) were associated with sPTB (p < 9.9e-4; Bonferroni adjusted p-value <0.05). After imputation in regions around the 19 SNPs, 15 imputed SNPs were found to be associated with sPTB (Bonferroni adjusted p-value <0.05). One of these imputed SNPs, rs35760881, and three other SNPs (rs17307697, rs4308815, and rs10983507) were also reported to be associated with sPTB in women belonging to European ancestry. Moreover, we found that GG genotype at rs1152954, one of the associated SNPs, enhanced risk of sPTB and reduced telomere length. Interpretation This is the first study from South Asia on the genome-wide identification of maternal SNPs associated with sPTB. These SNPs are known to alter the expression of genes associated with major pathways in sPTB viz. inflammation, apoptosis, cervical ripening, telomere maintenance, selenocysteine biosynthesis, myometrial contraction, and innate immunity. From a public health perspective, the trans-ethnic association of four SNPs identified in our study may help to stratify women with risk of sPTB in most populations. Funding Department of Biotechnology (India), Grand Challenges India - All Children Thriving Program and Biotechnology Industry Research Assistance Council (BIRAC).
Collapse
Affiliation(s)
- Esha Bhattacharjee
- National Institute of Biomedical Genomics, PO: NSS, Kalyani, India
- Regional Centre for Biotechnology, 3rd Milestone, Faridabad-Gurugram Expressway, Faridabad, India
| | - Ramachandran Thiruvengadam
- Translational Health Science and Technology Institute, 3rd Milestone, Faridabad-Gurugram Expressway, Faridabad, India
- Pondicherry Institute of Medical Sciences, Ganapathichettikulam, Kalapet, Puducherry, India
| | - Ayushi
- Translational Health Science and Technology Institute, 3rd Milestone, Faridabad-Gurugram Expressway, Faridabad, India
| | - Chitrarpita Das
- National Institute of Biomedical Genomics, PO: NSS, Kalyani, India
| | | | - Nitya Wadhwa
- Translational Health Science and Technology Institute, 3rd Milestone, Faridabad-Gurugram Expressway, Faridabad, India
| | - Uma Chandra Mouli Natchu
- Translational Health Science and Technology Institute, 3rd Milestone, Faridabad-Gurugram Expressway, Faridabad, India
- Division of Infectious Diseases, St. John's Research Institute, 100 Feet Road, John Nagar, Koramangala, Bengaluru, India
| | - Pallavi Kshetrapal
- Translational Health Science and Technology Institute, 3rd Milestone, Faridabad-Gurugram Expressway, Faridabad, India
| | - Shinjini Bhatnagar
- Translational Health Science and Technology Institute, 3rd Milestone, Faridabad-Gurugram Expressway, Faridabad, India
| | - Partha Pratim Majumder
- National Institute of Biomedical Genomics, PO: NSS, Kalyani, India
- Indian Statistical Institute, Barrackpore Trunk Road, Kolkata, India
| | - Arindam Maitra
- National Institute of Biomedical Genomics, PO: NSS, Kalyani, India
| |
Collapse
|
2
|
Wu L, Ge Y, Yuan Y, Li H, Sun H, Xu C, Wang Y, Zhao T, Wang X, Liu J, Gao S, Chang A, Hao J, Huang C. Genome-wide CRISPR screen identifies MTA3 as an inducer of gemcitabine resistance in pancreatic ductal adenocarcinoma. Cancer Lett 2022; 548:215864. [PMID: 35981571 DOI: 10.1016/j.canlet.2022.215864] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 07/26/2022] [Accepted: 08/03/2022] [Indexed: 11/02/2022]
Abstract
Gemcitabine (GEM) resistance is one of the major causes of treatment failure in pancreatic ductal adenocarcinoma (PDAC) in clinic. Here, through CRISPR/Cas9 activation library screen, we found that MTA3 mediates the GEM resistance of PDAC and thus might be a potential therapeutic target for combination chemotherapy. The CRISPR library screening showed that MTA3 is the most enriched gene in the surviving GEM-treated cells, and bioinformatic and histology analysis implied its high correlation with GEM resistance. MTA3 promoted GEM resistance of PDAC cells in in vitro and in vivo experiments. Mechanistically, as a component of the Mi-2/nucleosome remodeling and deacetylase transcriptional repression complex, MTA3 transcriptionally represses CRIP2, a transcriptional repressor of NF-Κb/p65, activating NF-κB signaling and consequently leading to GEM resistance. Furthermore, the treatment of GEM increases MTA3 expression in PDAC cells via activating STAT3 signaling, thereby inducing the acquired chemoresistance of PDAC to GEM. In patients derived xenografts (PDX) mouse model, Colchicine suppresses the expression of MTA3 and increases the sensitivity of tumor cells to GEM. Based on these findings, MTA3 plays a key role in GEM resistance in pancreatic cancer and is a promising therapeutic target for reversing GEM chemotherapy resistance.
Collapse
Affiliation(s)
- Liangliang Wu
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, 300060, China; Department of Gastric Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, 300060, China
| | - Yi Ge
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, 300060, China
| | - Yudong Yuan
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, 300060, China
| | - Hui Li
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, 300060, China
| | - Huizhi Sun
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, 300060, China
| | - Chao Xu
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, 300060, China
| | - Yifei Wang
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, 300060, China
| | - Tiansuo Zhao
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, 300060, China
| | - Xiuchao Wang
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, 300060, China
| | - Jing Liu
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, 300060, China; Department of Breast Oncoplastic Surgery, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, 300060, China
| | - Song Gao
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, 300060, China
| | - Antao Chang
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, 300060, China.
| | - Jihui Hao
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, 300060, China.
| | - Chongbiao Huang
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, 300060, China.
| |
Collapse
|
3
|
The effect of progesterone administration on the expression of metastasis tumor antigens (MTA1 and MTA3) in placentas of normal and dexamethasone-treated rats. Mol Biol Rep 2022; 49:1935-1943. [PMID: 35037193 DOI: 10.1007/s11033-021-07005-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Accepted: 11/23/2021] [Indexed: 10/19/2022]
Abstract
BACKGROUND Dexamethasone (DEX) induces intrauterine growth restriction (IUGR) in pregnant rats. IUGR can occur due to apoptosis of trophoblasts, which is believed to be inhibited by progesterone (P4). A group of genes called MTAs play a role in proliferation and apoptosis. MTA1 upregulates trophoblasts proliferation and differentiation, while MTA3 downregulates proliferation and induces apoptosis. Hence, we hypothesized that during IUGR, placental MTA1 decreases and MTA3 increases and this is reversed by P4 treatment. METHODS Pregnant Sprague-Dawley rats were divided into 4 groups based on daily intraperitoneal injections: control (C, saline), DEX (DEX, 0.2 mg/kg/day), DEX and P4 (DEX + P4, DEX: 0.2 mg/kg/day, P4: 5 mg/kg/day) and P4-treated (P4, 5 mg/kg/day) groups. Injections were started on 15 dg until the day of dissection (19 or 21 dg). Gene and protein expressions of MTA1 and MTA3 were studied in the labyrinth (LZ) and basal (BZ) zones using real-time PCR and Western blotting, respectively. RESULTS DEX treatment induced 18% reduction in fetal body weight (p < 0.001) and 30% reduction in placental weight (p < 0.01). Maternal P4 level was also significantly lower in DEX treated groups (p < 0.05). MTA1 expression was decreased in the LZ (gene, p < 0.001) and BZ (protein p < 0.01), while MTA3 protein expression was upregulated in the LZ with DEX treatment (p < 0.001). These changes were reversed with P4 treatment. CONCLUSION The findings of the present study indicate that DEX induces IUGR through changing the expression of placental MTA1 and MTA3 antigens and P4 improved pregnancy outcome by preventing the changes in MTAs expression.
Collapse
|
4
|
Ranganathan S, Kumar S, Mohanty SS, Jolly MK, Rangarajan A. Cellular Plasticity in Matrix-attached and -Detached Cells: Implications in Metastasis. J Indian Inst Sci 2020. [DOI: 10.1007/s41745-020-00179-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
5
|
Du L, Wang L, Gan J, Yao Z, Lin W, Li J, Guo Y, Chen Y, Zhou F, Jim Yeung SC, Coppes RP, Zhang D, Zhang H. MTA3 Represses Cancer Stemness by Targeting the SOX2OT/SOX2 Axis. iScience 2019; 22:353-368. [PMID: 31810000 PMCID: PMC6909183 DOI: 10.1016/j.isci.2019.11.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 10/05/2019] [Accepted: 11/05/2019] [Indexed: 02/05/2023] Open
Abstract
Cancer cell stemness (CCS) plays critical roles in both malignancy maintenance and metastasis, yet the underlying molecular mechanisms are far from complete. Although the importance of SOX2 in cancer development and CCS are well recognized, the role of MTA3 in these processes is unknown. In this study, we used esophageal squamous cell carcinoma (ESCC) as a model system to demonstrate that MTA3 can repress both CCS and metastasis in vitro and in vivo. Mechanistically, by forming a repressive complex with GATA3, MTA3 downregulates SOX2OT, subsequently suppresses the SOX2OT/SOX2 axis, and ultimately represses CCS and metastasis. More importantly, MTA3low/SOX2high is associated with poor prognosis and could serve as an independent prognostic factor. These findings altogether indicate that MTA3/SOX2OT/SOX2 axis plays an indispensable role in CCS. Therefore, this axis could be potentially used in cancer stratification and serves as a therapeutic target.
Collapse
Affiliation(s)
- Liang Du
- Department of General Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong 510632, China; Institute of Precision Cancer Medicine and Pathology, Department of Pathology, Jinan University Medical College, Guangzhou, Guangdong 510632, China; Cancer Research Center, Shantou University Medical College, Shantou, Guangdong 515041, China; Department of Biomedical Sciences of Cells & Systems, Section Molecular Cell Biology and Radiation Oncology, University Medical Center Groningen, University of Groningen, Groningen 9700 AD, the Netherlands
| | - Lu Wang
- Department of General Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong 510632, China; Institute of Precision Cancer Medicine and Pathology, Department of Pathology, Jinan University Medical College, Guangzhou, Guangdong 510632, China
| | - Jinfeng Gan
- Institute of Precision Cancer Medicine and Pathology, Department of Pathology, Jinan University Medical College, Guangzhou, Guangdong 510632, China; Cancer Research Center, Shantou University Medical College, Shantou, Guangdong 515041, China
| | - Zhimeng Yao
- Institute of Precision Cancer Medicine and Pathology, Department of Pathology, Jinan University Medical College, Guangzhou, Guangdong 510632, China; Cancer Research Center, Shantou University Medical College, Shantou, Guangdong 515041, China
| | - Wan Lin
- Cancer Research Center, Shantou University Medical College, Shantou, Guangdong 515041, China
| | - Junkuo Li
- The Fourth Affiliated Hospital of Henan University of Science and Technology, Anyang, Henan 455001, China; Department of Thoracic Surgery, Anyang Tumor Hospital, Anyang, Henan 455001, China
| | - Yi Guo
- Endoscopy Center, Affiliated Cancer Hospital of Shantou University Medical College, Shantou, Guangdong 515041, China
| | - Yuping Chen
- Department of Thoracic Surgery, Affiliated Cancer Hospital of Shantou University Medical College, Shantou, Guangdong 515041, China
| | - Fuyou Zhou
- The Fourth Affiliated Hospital of Henan University of Science and Technology, Anyang, Henan 455001, China; Department of Thoracic Surgery, Anyang Tumor Hospital, Anyang, Henan 455001, China.
| | - Sai-Ching Jim Yeung
- Department of Emergency Medicine, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; Department of Endocrine Neoplasia and Hormonal Disorders, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Robert P Coppes
- Department of Biomedical Sciences of Cells & Systems, Section Molecular Cell Biology and Radiation Oncology, University Medical Center Groningen, University of Groningen, Groningen 9700 AD, the Netherlands
| | - Dianzheng Zhang
- Department of Bio-Medical Sciences, Philadelphia College of Osteopathic Medicine, 4170 City Avenue, Philadelphia, PA 19131, USA; Key Laboratory of Epigenetics and Oncology, Research Center for Preclinical Medicine, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Hao Zhang
- Department of General Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong 510632, China; Institute of Precision Cancer Medicine and Pathology, Department of Pathology, Jinan University Medical College, Guangzhou, Guangdong 510632, China; Research Centre of Translational Medicine, The Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong 515063, China.
| |
Collapse
|
6
|
Yao Z, Du L, Xu M, Li K, Guo H, Ye G, Zhang D, Coppes RP, Zhang H. MTA3-SOX2 Module Regulates Cancer Stemness and Contributes to Clinical Outcomes of Tongue Carcinoma. Front Oncol 2019; 9:816. [PMID: 31552166 PMCID: PMC6736560 DOI: 10.3389/fonc.2019.00816] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Accepted: 08/09/2019] [Indexed: 02/05/2023] Open
Abstract
Cancer cell plasticity plays critical roles in both tumorigenesis and tumor progression. Metastasis-associated protein 3 (MTA3), a component of the nucleosome remodeling and histone deacetylase (NuRD) complex and multi-effect coregulator, can serve as a tumor suppressor in many cancer types. However, the role of MTA3 in tongue squamous cell cancer (TSCC) remains unclear although it is the most prevalent head and neck cancer and often with poor prognosis. By analyzing both published datasets and clinical specimens, we found that the level of MTA3 was lower in TSCC compared to normal tongue tissues. Data from gene set enrichment analysis (GSEA) also indicated that MTA3 was inversely correlated with cancer stemness. In addition, the levels of MTA3 in both samples from TSCC patients and TSCC cell lines were negatively correlated with SOX2, a key regulator of the plasticity of cancer stem cells (CSCs). We also found that SOX2 played an indispensable role in MTA3-mediated CSC repression. Using the mouse model mimicking human TSCC we demonstrated that the levels of MTA3 and SOX2 decreased and increased, respectively, during the process of tumorigenesis and progression. Finally, we showed that the patients in the MTA3low/SOX2high group had the worst prognosis suggesting that MTA3low/SOX2high can serve as an independent prognostic factor for TSCC patients. Altogether, our data suggest that MTA3 is capable of repressing TSCC CSC properties and tumor growth through downregulating SOX2 and MTA3low/SOX2high might be a potential prognostic factor for TSCC patients.
Collapse
Affiliation(s)
- Zhimeng Yao
- Cancer Research Center, Shantou University Medical College, Shantou, China
| | - Liang Du
- Cancer Research Center, Shantou University Medical College, Shantou, China
- Department of Biomedical Sciences of Cells and Systems, Section Molecular Cell Biology and Radiation Oncology, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Min Xu
- Department of Head and Neck Surgery, Cancer Hospital of Shantou University Medical College, Shantou, China
| | - Kai Li
- Cancer Research Center, Shantou University Medical College, Shantou, China
| | - Haipeng Guo
- Department of Head and Neck Surgery, Cancer Hospital of Shantou University Medical College, Shantou, China
| | - Guodong Ye
- Institute of Precision Cancer Medicine and Pathology, Jinan University Medical College, Guangzhou, China
| | - Dianzheng Zhang
- Department of Bio-Medical Sciences, Philadelphia College of Osteopathic Medicine, Philadelphia, PA, United States
| | - Robert P. Coppes
- Department of Biomedical Sciences of Cells and Systems, Section Molecular Cell Biology and Radiation Oncology, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Hao Zhang
- Institute of Precision Cancer Medicine and Pathology, Jinan University Medical College, Guangzhou, China
- Research Centre of Translational Medicine, The Second Affiliated Hospital of Shantou University Medical College, Shantou, China
- *Correspondence: Hao Zhang
| |
Collapse
|
7
|
Wang L, Li W, Li K, Guo Y, Liu D, Yao Z, Lin X, Li S, Jiang Z, Liu Q, Jiang Y, Zhang B, Chen L, Zhou F, Ren H, Lin D, Zhang D, Yeung SJ, Zhang H. The oncogenic roles of nuclear receptor coactivator 1 in human esophageal carcinoma. Cancer Med 2018; 7:5205-5216. [PMID: 30270520 PMCID: PMC6198200 DOI: 10.1002/cam4.1786] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Revised: 08/05/2018] [Accepted: 08/16/2018] [Indexed: 02/05/2023] Open
Abstract
Nuclear receptor coactivator 1 (NCOA1) plays crucial roles in the regulation of gene expression mediated by a wide spectrum of steroid receptors such as androgen receptor (AR), estrogen receptor α (ER α), and estrogen receptor β (ER β). Therefore, dysregulations of NCOA1 have been found in a variety of cancer types. However, the clinical relevance and the functional roles of NCOA1 in human esophageal squamous cell carcinoma (ESCC) are less known. We found in this study that elevated levels of NCOA1 protein and/or mRNA as well as amplification of the NCOA1 gene occur in human ESCC. Elevated levels of NCOA1 due to these dysregulations were not only associated with more aggressive clinic-pathologic parameters but also poorer survival. Results from multiple cohorts of ESCC patients strongly suggest that the levels of NCOA1 could serve as an independent predictor of overall survival. In addition, silencing NCOA1 in ESCC cells remarkably decreased proliferation, migration, and invasion. These findings not only indicate that NCOA1 plays important roles in human ESCC but the levels of NCOA1 also could serve as a potential prognostic biomarker of ESCC and targeting NCOA1 could be an efficacious strategy in ESCC treatment.
Collapse
Affiliation(s)
- Lu Wang
- Department of Immunotherapy and Gastrointestinal OncologyAffiliated Cancer Hospital of Shantou University Medical CollegeShantouGuangdongChina
- Cancer Research CentreShantou University Medical CollegeShantouGuangdongChina
| | - Weiwei Li
- Cancer Research CentreShantou University Medical CollegeShantouGuangdongChina
| | - Kai Li
- Cancer Research CentreShantou University Medical CollegeShantouGuangdongChina
| | - Yi Guo
- Endoscopy CentreAffiliated Cancer Hospital of Shantou University Medical CollegeShantouGuangdongChina
| | - Ditian Liu
- Department of Thoracic SurgeryAffiliated Cancer Hospital of Shantou University Medical CollegeShantouGuangdongChina
| | - Zhimeng Yao
- Department of Immunotherapy and Gastrointestinal OncologyAffiliated Cancer Hospital of Shantou University Medical CollegeShantouGuangdongChina
- Cancer Research CentreShantou University Medical CollegeShantouGuangdongChina
| | - Xianjie Lin
- Department of Immunotherapy and Gastrointestinal OncologyAffiliated Cancer Hospital of Shantou University Medical CollegeShantouGuangdongChina
- Cancer Research CentreShantou University Medical CollegeShantouGuangdongChina
| | - Shujun Li
- Department of Thoracic SurgerySecond Affiliated Hospital of Hebei Medical UniversityShijiazhuangHebeiChina
| | - Zuojie Jiang
- Cancer Research CentreShantou University Medical CollegeShantouGuangdongChina
| | - Qing Liu
- Department of PathologyThe First People's Hospital of FoshanFoshanGuangdongChina
| | - Yi Jiang
- Department of Immunotherapy and Gastrointestinal OncologyAffiliated Cancer Hospital of Shantou University Medical CollegeShantouGuangdongChina
| | - Beien Zhang
- Cancer Research CentreShantou University Medical CollegeShantouGuangdongChina
- Department of Science and EducationAffiliated Cancer Hospital of Shantou University Medical CollegeShantouGuangdongChina
| | - Lei Chen
- Department of Immunotherapy and Gastrointestinal OncologyAffiliated Cancer Hospital of Shantou University Medical CollegeShantouGuangdongChina
| | - Fuyou Zhou
- Department of PathologyAnyang Tumour HospitalAnyangHenanChina
| | - Hongzheng Ren
- Cancer Research CentreShantou University Medical CollegeShantouGuangdongChina
| | - Danxia Lin
- Department of Breast OncologyAffiliated Cancer Hospital of Shantou University Medical CollegeShantouGuangdongChina
| | - Dianzheng Zhang
- Department of Bio‐Medical SciencesPhiladelphia College of Osteopathic MedicinePhiladelphiaPennsylvania
| | - Sai‐Ching Jim Yeung
- Department of Emergency Medicine, Department of Endocrine Neoplasia and Hormonal DisordersThe University of Texas MD Anderson Cancer CenterHoustonTexas
| | - Hao Zhang
- Department of Immunotherapy and Gastrointestinal OncologyAffiliated Cancer Hospital of Shantou University Medical CollegeShantouGuangdongChina
- Cancer Research CentreShantou University Medical CollegeShantouGuangdongChina
- Institute of Precision Cancer Medicine and Pathology and Department of PathologyJinan University Medical CollegeGuangzhouChina
- Tumor Tissue BankAffiliated Cancer Hospital of Shantou University Medical CollegeShantouGuangdongChina
| |
Collapse
|
8
|
Saxena M, Balaji SA, Deshpande N, Ranganathan S, Pillai DM, Hindupur SK, Rangarajan A. AMP-activated protein kinase promotes epithelial-mesenchymal transition in cancer cells through Twist1 upregulation. J Cell Sci 2018; 131:jcs.208314. [PMID: 29950484 PMCID: PMC6080604 DOI: 10.1242/jcs.208314] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Accepted: 06/20/2018] [Indexed: 12/24/2022] Open
Abstract
The developmental programme of epithelial-mesenchymal transition (EMT), involving loss of epithelial and acquisition of mesenchymal properties, plays an important role in the invasion-metastasis cascade of cancer cells. In the present study, we show that activation of AMP-activated protein kinase (AMPK) using A769662 led to a concomitant induction of EMT in multiple cancer cell types, as observed by enhanced expression of mesenchymal markers, decrease in epithelial markers, and increase in migration and invasion. In contrast, inhibition or depletion of AMPK led to a reversal of EMT. Importantly, AMPK activity was found to be necessary for the induction of EMT by physiological cues such as hypoxia and TGFβ treatment. Furthermore, AMPK activation increased the expression and nuclear localization of Twist1, an EMT transcription factor. Depletion of Twist1 impaired AMPK-induced EMT phenotypes, suggesting that AMPK might mediate its effects on EMT, at least in part, through Twist1 upregulation. Inhibition or depletion of AMPK also attenuated metastasis. Thus, our data underscore a central role for AMPK in the induction of EMT and in metastasis, suggesting that strategies targeting AMPK might provide novel approaches to curb cancer spread. Highlighted Article: Pharmacological and physiological activation of AMPK promotes epithelial-mesenchymal transition in cancer cells through Twist1 upregulation and its increased nuclear localization.
Collapse
Affiliation(s)
- Meera Saxena
- Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science, Bangalore 560012, Karnataka, India
| | - Sai A Balaji
- Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science, Bangalore 560012, Karnataka, India
| | - Neha Deshpande
- Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science, Bangalore 560012, Karnataka, India
| | - Santhalakshmi Ranganathan
- Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science, Bangalore 560012, Karnataka, India
| | - Divya Mohan Pillai
- Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science, Bangalore 560012, Karnataka, India
| | - Sravanth Kumar Hindupur
- Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science, Bangalore 560012, Karnataka, India
| | - Annapoorni Rangarajan
- Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science, Bangalore 560012, Karnataka, India
| |
Collapse
|
9
|
Huang Y, Li Y, He F, Wang S, Li Y, Ji G, Liu X, Zhao Q, Li J. Metastasis-associated protein 3 in colorectal cancer determines tumor recurrence and prognosis. Oncotarget 2018; 8:37164-37171. [PMID: 28418887 PMCID: PMC5514899 DOI: 10.18632/oncotarget.16332] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2016] [Accepted: 02/14/2017] [Indexed: 12/26/2022] Open
Abstract
Metastasis-associated protein family (MTA) promotes tumor cell invasion and metastasis of human malignancies. However, the novel component of MTA family, MTA3 was found to play conflicting roles in human malignancies. While the expression pattern and potential function of MTA3 in colorectal cancer has not been addressed yet. In the present study, we investigated the protein expression of MTA3 by immunohistochemistry assay, analyzed its association with tumor progression, recurrence and prognosis in239 cases of patients. Results showed that MTA3 expression in colorectal cancer was significantly decreased in colorectal cancer compared with normal specimens. Its expression was found to be correlated with tumor differentiation, metastases and TNM stage. Kaplan–Meier analysis proved that MTA3 was associated with both disease-free survival and overall survival of patients with colorectal cancer that patients with negative MTA3 expression tend to have unfavorable outcome. Moreover, cox's proportional hazards analysis showed that negative MTA3 expression was an independent prognostic marker of poor outcome. These results provided the first evidence that MTA3 level was decreased in colorectal cancer and significantly correlated with tumor cell invasion and metastasis. It also demonstrated that MTA3 might serve as a potential marker of tumor recurrence and prognosis of colorectal cancer.
Collapse
Affiliation(s)
- Yi Huang
- Department of Anesthesiology, Xijing Hospital, Fourth Military Medical University. Xi'an, China
| | - Yunlong Li
- State key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China
| | - Fenfei He
- State key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China
| | - Shiqi Wang
- State key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China
| | - Yaohui Li
- State key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China
| | - Gang Ji
- State key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China
| | - Xiaonan Liu
- State key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China
| | - Qingchuan Zhao
- State key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China
| | - Jipeng Li
- State key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China
| |
Collapse
|
10
|
Du L, Ning Z, Zhang H, Liu F. Corepressor metastasis-associated protein 3 modulates epithelial-to-mesenchymal transition and metastasis. CHINESE JOURNAL OF CANCER 2017; 36:28. [PMID: 28279208 PMCID: PMC5345190 DOI: 10.1186/s40880-017-0193-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Accepted: 02/22/2017] [Indexed: 02/05/2023]
Abstract
Worldwide, metastasis is the leading cause of more than 90% of cancer-related deaths. Currently, no specific therapies effectively impede metastasis. Metastatic processes are controlled by complex regulatory networks and transcriptional hierarchy. Corepressor metastasis-associated protein 3 (MTA3) has been confirmed as a novel component of nucleosome remodeling and histone deacetylation (NuRD). Increasing evidence supports the theory that, in the recruitment of transcription factors, coregulators function as master regulators rather than passive passengers. As a master regulator, MTA3 governs the target selection for NuRD and functions as a transcriptional repressor. MTA3 dysregulation is associated with tumor progression, invasion, and metastasis in various cancers. MTA3 is also a key regulator of E-cadherin expression and epithelial-to-mesenchymal transition. Elucidating the functions of MTA3 might help to find additional therapeutic approaches for targeting components of NuRD.
Collapse
Affiliation(s)
- Liang Du
- Cancer Research Center, Shantou University Medical College, Shantou, 515031 Guangdong P. R. China
| | - Zhifeng Ning
- Basic Medicine College, Hubei University of Science and Technology, Xianning, 437100 Hubei P. R. China
| | - Hao Zhang
- Cancer Research Center, Shantou University Medical College, Shantou, 515031 Guangdong P. R. China
- Department of Biotherapy, Affiliated Cancer Hospital of Shantou University Medical College, Shantou, 515031 Guangdong P. R. China
| | - Fuxing Liu
- Basic Medicine College, Hubei University of Science and Technology, Xianning, 437100 Hubei P. R. China
| |
Collapse
|
11
|
Dong H, Xu J, Li W, Gan J, Lin W, Ke J, Jiang J, Du L, Chen Y, Zhong X, Zhang D, Yeung SCJ, Li X, Zhang H. Reciprocal androgen receptor/interleukin-6 crosstalk drives oesophageal carcinoma progression and contributes to patient prognosis. J Pathol 2017; 241:448-462. [PMID: 27801498 DOI: 10.1002/path.4839] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Revised: 09/20/2016] [Accepted: 10/18/2016] [Indexed: 02/05/2023]
Abstract
Oesophageal squamous cell carcinoma (ESCC), a leading lethal malignancy of the digestive tract, is characterized by marked gender disparity. Clarifying the roles of the function and regulatory pathway of the androgen receptor (AR) will improve our understanding of oesophageal cancer progression, thereby facilitating the personalized management of ESCC. Here we report evidence to show that AR is a key mediator of inflammatory signals in ESCC cancer progression. High AR expression was associated with poor overall survival in tobacco-using ESCC patients but not in ESCC patients not using tobacco. A gain and loss of AR function enhanced and repressed ESCC cell growth, respectively, by altering cell cycle progression. In mice bearing human ESCC xenografts, silencing AR expression attenuated tumour growth, whereas AR overexpression promoted tumour growth in mice of different androgen statuses (male, female, and castrated male). Array assays revealed that the inflammatory cytokine interleukin-6 (IL6) is a prominent AR target gene in ESCC. By directly binding to the IL6 promoter, AR enhances IL6 transcription, and IL6 can in turn activate AR expression, thus forming a reciprocal regulatory circuit to sustain STAT3 oncogenic signalling in ESCC. Moreover, high expression levels of both AR and IL6 in human ESCC predict poor clinical outcome in tobacco users. Together, these data establish that AR promotes ESCC growth and is associated with poor patient prognosis. The discovery of a positive feedback loop between IL6 and AR bridges the knowledge gaps among lifestyle factor-associated inflammation, gender disparity, and oesophageal carcinoma. Copyright © 2016 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
Collapse
MESH Headings
- Animals
- Carcinoma, Squamous Cell/diagnosis
- Carcinoma, Squamous Cell/genetics
- Carcinoma, Squamous Cell/mortality
- Carcinoma, Squamous Cell/pathology
- Cell Line, Tumor
- Cell Proliferation
- Cohort Studies
- Disease Progression
- Esophageal Neoplasms/diagnosis
- Esophageal Neoplasms/genetics
- Esophageal Neoplasms/mortality
- Esophageal Neoplasms/pathology
- Esophageal Squamous Cell Carcinoma
- Female
- Gene Expression Regulation, Neoplastic
- Heterografts
- Humans
- Interleukin-6/genetics
- Interleukin-6/metabolism
- Male
- Mice
- Mice, Nude
- Prognosis
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Receptors, Androgen/genetics
- Receptors, Androgen/metabolism
- Receptors, Interleukin-6/genetics
- Receptors, Interleukin-6/metabolism
- Signal Transduction
- Survival Analysis
- Nicotiana/adverse effects
Collapse
Affiliation(s)
- Hongmei Dong
- Cancer Research Center, Shantou University Medical College, Shantou, Guangdong, PR China
| | - Jinjin Xu
- Shanghai Key Laboratory of Regulatory Biology, Shanghai Key Laboratory of Brain Functional Genomics (Ministry of Education), Institute of Biomedical Sciences, East China Normal University, Shanghai, PR China
| | - Weiwei Li
- Cancer Research Center, Shantou University Medical College, Shantou, Guangdong, PR China
| | - Jinfeng Gan
- Cancer Research Center, Shantou University Medical College, Shantou, Guangdong, PR China
| | - Wan Lin
- Cancer Research Center, Shantou University Medical College, Shantou, Guangdong, PR China
| | - Jierong Ke
- Cancer Research Center, Shantou University Medical College, Shantou, Guangdong, PR China
| | - Jiali Jiang
- Cancer Research Center, Shantou University Medical College, Shantou, Guangdong, PR China
| | - Liang Du
- Cancer Research Center, Shantou University Medical College, Shantou, Guangdong, PR China
| | - Yuping Chen
- Department of Thoracic Surgery, Affiliated Cancer Hospital of Shantou University Medical College, Shantou, PR China
| | - Xueyun Zhong
- Department of Pathology, Jinan University Medical College, Guangzhou, PR China
| | - Dianzheng Zhang
- Department of Biochemistry and Molecular Biology and Center for Chronic Disorders of Aging, Philadelphia College of Osteopathic Medicine, Philadelphia, USA
| | - Sai-Ching Jim Yeung
- Department of Emergency Medicine and Department of Endocrine Neoplasia and Hormonal Disorders, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Xiaotao Li
- Shanghai Key Laboratory of Regulatory Biology, Shanghai Key Laboratory of Brain Functional Genomics (Ministry of Education), Institute of Biomedical Sciences, East China Normal University, Shanghai, PR China
- Department of Molecular and Cellular Biology, The Dan L Duncan Cancer Center, Baylor College of Medicine, Houston, Texas, USA
| | - Hao Zhang
- Cancer Research Center, Shantou University Medical College, Shantou, Guangdong, PR China
- Department of Biotherapy, Affiliated Cancer Hospital of Shantou University Medical College, Shantou, PR China
- Tumor Tissue Bank, Affiliated Cancer Hospital of Shantou University Medical College, Shantou, PR China
| |
Collapse
|
12
|
Dong H, Ma L, Gan J, Lin W, Chen C, Yao Z, Du L, Zheng L, Ke C, Huang X, Song H, Kumar R, Yeung SC, Zhang H. PTPRO represses ERBB2-driven breast oncogenesis by dephosphorylation and endosomal internalization of ERBB2. Oncogene 2017; 36:410-422. [PMID: 27345410 PMCID: PMC5269534 DOI: 10.1038/onc.2016.213] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Revised: 05/05/2016] [Accepted: 05/08/2016] [Indexed: 02/05/2023]
Abstract
The plasma membrane-associated tyrosine phosphatase PTPRO is frequently transcriptionally repressed in cancers and signifies poor prognosis of breast cancer patients. In this study, deletion of Ptpro in MMTV-Erbb2 transgenic mice dramatically shortened the mammary tumor latency and accelerated tumor growth due to loss of Ptpro within the breast cancer cells but not in surrounding tissue as confirmed by hetero-transplantation studies. Both in vitro and in vivo data demonstrated that the phosphatase activity was required for the inactivation of ERBB2 and its downstream signaling. PTPRO regulated the phosphorylation status of ERBB2 at Y1248. Co-immunoprecipitation and proximity ligation assay (Duolink) indicated that PTPRO directly physically interacted with ERBB2. Moreover, PTPRO phosphatase activity shortened the half-life of ERBB2 by increasing endocytotic degradation. PTPRO reexpression by demethylation treatment using 5-azacytidine reduced the proliferation and colony formation potential in ERBB2-positive breast cancer cells. Taken together, PTPRO inhibited ERBB2-driven breast cancer through dephosphorylation leading to dual effects of ERBB2 signaling suppression and endosomal internalization of ERBB2, Therefore, reexpression of PTPRO may be a potential therapy for ERBB2-overexpressing breast cancer.
Collapse
Affiliation(s)
- H Dong
- Cancer Research Center, Shantou University Medical College, Shantou, China
| | - L Ma
- Department of Gastroenterology, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - J Gan
- Cancer Research Center, Shantou University Medical College, Shantou, China
| | - W Lin
- Cancer Research Center, Shantou University Medical College, Shantou, China
| | - C Chen
- Cancer Research Center, Shantou University Medical College, Shantou, China
| | - Z Yao
- Cancer Research Center, Shantou University Medical College, Shantou, China
| | - L Du
- Cancer Research Center, Shantou University Medical College, Shantou, China
| | - L Zheng
- Cancer Research Center, Shantou University Medical College, Shantou, China
| | - C Ke
- Cancer Research Center, Shantou University Medical College, Shantou, China
| | - X Huang
- MOE Key Laboratory of Model Animal for Disease Study, Model Animal Research Center of Nanjing University, Nanjing, China
| | - H Song
- Department of Cell Biology, Xi'an Jiaotong University Suzhou Academy, Suzhou, China
| | - R Kumar
- Department of Biochemistry and Molecular Medicine, School of Medicine and Health Sciences, George Washington University, Washington DC, USA
| | - S C Yeung
- Cancer Research Center, Shantou University Medical College, Shantou, China
- Department of Emergency Medicine, University of Texas MD Anderson Cancer Center, Houston, TX, USA
- Department of Endocrine Neoplasia and Hormonal Disorders, University of Texas MD Anderson Cancer Center, Houston, TX, USA
- Department of Endocrine Neoplasia and Hormonal Disorders, University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA. E-mail:
| | - H Zhang
- Cancer Research Center, Shantou University Medical College, Shantou, China
- Department of Biotherapy, Affiliated Cancer Hospital of Shantou University Medical College, Shantou, China
- Cancer Research Center, Shantou University Medical College, Xinling Road No. 22, Shantou 515041, ChinaE-mail:
| |
Collapse
|
13
|
Alqaryyan M, Kilarkaje N, Mouihate A, Al-Bader MD. Dexamethasone-Induced Intrauterine Growth Restriction Is Associated With Altered Expressions of Metastasis Tumor Antigens and Cell Cycle Control Proteins in Rat Placentas. Reprod Sci 2016; 24:1164-1175. [PMID: 27932593 DOI: 10.1177/1933719116681518] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Molecular mechanisms affecting placental formation in intrauterine growth-restricted (IUGR) pregnancies are not clearly understood. Since metastasis tumor antigens (MTAs) MTA1 and MTA2 promote cell proliferation and MTA3 suppresses it, we hypothesized that IUGR alters cell survival/cell death programs driven by placental MTAs. To induce IUGR, pregnant Sprague Dawley rats were given daily intraperitoneal injections of either saline or dexamethasone (0.4 mg/kg) starting from 14 days of gestation (dg) to either 19 dg or 21 dg. Gene and protein expressions of MTA1-3 in the placental basal and labyrinth zones were investigated by real-time polymerase chain reaction, Western blotting, and immunohistochemistry. We also explored the expressions of proliferating cell nuclear antigen (PCNA), caspase-3, p53, p21, and β-catenin. Dexamethasone-induced IUGR resulted in decreased expression of MTA1 in the nuclei of cells in the basal zone. The expression of p21 was increased and that of PCNA was reduced in both placental zones of IUGR rats. Cytoplasmic expression of MTA1 and p53 increased in the labyrinth zone of IUGR placentas in association with an increase in cell death as indicated by an increased caspase-3 expression. The labyrinth zone of IUGR placentas showed a significant reduction in MTA2-MTA3 gene expression and an increase in p53 protein levels. Total MTA3 level increased and β-catenin level decreased in the labyrinth zone of IUGR placentas associated with a reduction in cell proliferation. Taken together, these results strongly suggest that dexamethasone-induced IUGR is associated with changes in MTA expression, decreased cell proliferation, and increased cell death in placentas.
Collapse
Affiliation(s)
- Mariam Alqaryyan
- 1 Department of Physiology, Faculty of Medicine, Kuwait University, Kuwait City, Kuwait
| | - Narayana Kilarkaje
- 2 Department of Anatomy, Faculty of Medicine, Kuwait University, Kuwait City, Kuwait
| | - Abdeslam Mouihate
- 1 Department of Physiology, Faculty of Medicine, Kuwait University, Kuwait City, Kuwait
| | - Maie D Al-Bader
- 1 Department of Physiology, Faculty of Medicine, Kuwait University, Kuwait City, Kuwait
| |
Collapse
|
14
|
Wei FZ, Cao Z, Wang X, Wang H, Cai MY, Li T, Hattori N, Wang D, Du Y, Song B, Cao LL, Shen C, Wang L, Wang H, Yang Y, Xie D, Wang F, Ushijima T, Zhao Y, Zhu WG. Epigenetic regulation of autophagy by the methyltransferase EZH2 through an MTOR-dependent pathway. Autophagy 2016; 11:2309-22. [PMID: 26735435 DOI: 10.1080/15548627.2015.1117734] [Citation(s) in RCA: 117] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Abstract
Macroautophagy is an evolutionarily conserved cellular process involved in the clearance of proteins and organelles. Although the autophagy regulation machinery has been widely studied, the key epigenetic control of autophagy process still remains unknown. Here we report that the methyltransferase EZH2 (enhancer of zeste 2 polycomb repressive complex 2 subunit) epigenetically represses several negative regulators of the MTOR (mechanistic target of rapamycin [serine/threonine kinase]) pathway, such as TSC2, RHOA, DEPTOR, FKBP11, RGS16 and GPI. EZH2 was recruited to these genes promoters via MTA2 (metastasis associated 1 family, member 2), a component of the nucleosome remodeling and histone deacetylase (NuRD) complex. MTA2 was identified as a new chromatin binding protein whose association with chromatin facilitated the subsequent recruitment of EZH2 to silenced targeted genes, especially TSC2. Downregulation of TSC2 (tuberous sclerosis 2) by EZH2 elicited MTOR activation, which in turn modulated subsequent MTOR pathway-related events, including inhibition of autophagy. In human colorectal carcinoma (CRC) tissues, the expression of MTA2 and EZH2 correlated negatively with expression of TSC2, which reveals a novel link among epigenetic regulation, the MTOR pathway, autophagy induction, and tumorigenesis.
Collapse
Affiliation(s)
- Fu-Zheng Wei
- a Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education); State Key Laboratory of Natural and Biomimetic Drugs; Beijing Key Laboratory of Protein Posttranslational Modifications and Cell Function; Department of Biochemistry and Molecular Biology; Peking University Health Science Center ; Beijing , China
| | - Ziyang Cao
- a Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education); State Key Laboratory of Natural and Biomimetic Drugs; Beijing Key Laboratory of Protein Posttranslational Modifications and Cell Function; Department of Biochemistry and Molecular Biology; Peking University Health Science Center ; Beijing , China
| | - Xi Wang
- a Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education); State Key Laboratory of Natural and Biomimetic Drugs; Beijing Key Laboratory of Protein Posttranslational Modifications and Cell Function; Department of Biochemistry and Molecular Biology; Peking University Health Science Center ; Beijing , China
| | - Hui Wang
- a Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education); State Key Laboratory of Natural and Biomimetic Drugs; Beijing Key Laboratory of Protein Posttranslational Modifications and Cell Function; Department of Biochemistry and Molecular Biology; Peking University Health Science Center ; Beijing , China
| | - Mu-Yan Cai
- b State Key Laboratory of Oncology in South China; Sun Yat-Sen University Cancer Center ; Guangzhou , China
| | - Tingting Li
- c Department of Biomedical Informatics ; School of Basic Medical Sciences; Peking University Health Science Center ; Beijing , China
| | - Naoko Hattori
- d Division of Epigenomics; National Cancer Center Research Institute ; Tokyo , Japan
| | - Donglai Wang
- a Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education); State Key Laboratory of Natural and Biomimetic Drugs; Beijing Key Laboratory of Protein Posttranslational Modifications and Cell Function; Department of Biochemistry and Molecular Biology; Peking University Health Science Center ; Beijing , China
| | - Yipeng Du
- a Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education); State Key Laboratory of Natural and Biomimetic Drugs; Beijing Key Laboratory of Protein Posttranslational Modifications and Cell Function; Department of Biochemistry and Molecular Biology; Peking University Health Science Center ; Beijing , China
| | - Boyan Song
- a Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education); State Key Laboratory of Natural and Biomimetic Drugs; Beijing Key Laboratory of Protein Posttranslational Modifications and Cell Function; Department of Biochemistry and Molecular Biology; Peking University Health Science Center ; Beijing , China
| | - Lin-Lin Cao
- a Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education); State Key Laboratory of Natural and Biomimetic Drugs; Beijing Key Laboratory of Protein Posttranslational Modifications and Cell Function; Department of Biochemistry and Molecular Biology; Peking University Health Science Center ; Beijing , China
| | - Changchun Shen
- a Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education); State Key Laboratory of Natural and Biomimetic Drugs; Beijing Key Laboratory of Protein Posttranslational Modifications and Cell Function; Department of Biochemistry and Molecular Biology; Peking University Health Science Center ; Beijing , China
| | - Lina Wang
- a Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education); State Key Laboratory of Natural and Biomimetic Drugs; Beijing Key Laboratory of Protein Posttranslational Modifications and Cell Function; Department of Biochemistry and Molecular Biology; Peking University Health Science Center ; Beijing , China
| | - Haiying Wang
- a Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education); State Key Laboratory of Natural and Biomimetic Drugs; Beijing Key Laboratory of Protein Posttranslational Modifications and Cell Function; Department of Biochemistry and Molecular Biology; Peking University Health Science Center ; Beijing , China
| | - Yang Yang
- a Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education); State Key Laboratory of Natural and Biomimetic Drugs; Beijing Key Laboratory of Protein Posttranslational Modifications and Cell Function; Department of Biochemistry and Molecular Biology; Peking University Health Science Center ; Beijing , China
| | - Dan Xie
- b State Key Laboratory of Oncology in South China; Sun Yat-Sen University Cancer Center ; Guangzhou , China
| | - Fan Wang
- e Department of Radiation Medicine; School of Basic Medical Sciences ; Peking University ; Beijing , People's Republic of China
| | - Toshikazu Ushijima
- d Division of Epigenomics; National Cancer Center Research Institute ; Tokyo , Japan
| | - Ying Zhao
- a Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education); State Key Laboratory of Natural and Biomimetic Drugs; Beijing Key Laboratory of Protein Posttranslational Modifications and Cell Function; Department of Biochemistry and Molecular Biology; Peking University Health Science Center ; Beijing , China
| | - Wei-Guo Zhu
- a Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education); State Key Laboratory of Natural and Biomimetic Drugs; Beijing Key Laboratory of Protein Posttranslational Modifications and Cell Function; Department of Biochemistry and Molecular Biology; Peking University Health Science Center ; Beijing , China.,f Peking University-Tsinghua University Center for Life Sciences ; Beijing , China.,g School of Medicine; Shenzhen University ; Shenzhen , China
| |
Collapse
|
15
|
Sikora MJ, Jacobsen BM, Levine K, Chen J, Davidson NE, Lee AV, Alexander CM, Oesterreich S. WNT4 mediates estrogen receptor signaling and endocrine resistance in invasive lobular carcinoma cell lines. Breast Cancer Res 2016; 18:92. [PMID: 27650553 PMCID: PMC5028957 DOI: 10.1186/s13058-016-0748-7] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Accepted: 08/24/2016] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Invasive lobular carcinoma (ILC) of the breast typically presents with clinical biomarkers consistent with a favorable response to endocrine therapies, and over 90 % of ILC cases express the estrogen receptor (ER). However, a subset of ILC cases may be resistant to endocrine therapies, suggesting that ER biology is unique in ILC. Using ILC cell lines, we previously demonstrated that ER regulates a distinct gene expression program in ILC cells, and we hypothesized that these ER-driven pathways modulate the endocrine response in ILC. One potential novel pathway is via the Wnt ligand WNT4, a critical signaling molecule in mammary gland development regulated by the progesterone receptor. METHODS The ILC cell lines MDA-MB-134-VI, SUM44PE, and BCK4 were used to assess WNT4 gene expression and regulation, as well as the role of WNT4 in estrogen-regulated proliferation. To assess these mechanisms in the context of endocrine resistance, we developed novel ILC endocrine-resistant long-term estrogen-deprived (ILC-LTED) models. ILC and ILC-LTED cell lines were used to identify upstream regulators and downstream signaling effectors of WNT4 signaling. RESULTS ILC cells co-opted WNT4 signaling by placing it under direct ER control. We observed that ER regulation of WNT4 correlated with use of an ER binding site at the WNT4 locus, specifically in ILC cells. Further, WNT4 was required for endocrine response in ILC cells, as WNT4 knockdown blocked estrogen-induced proliferation. ILC-LTED cells remained dependent on WNT4 for proliferation, by either maintaining ER function and WNT4 regulation or uncoupling WNT4 from ER and upregulating WNT4 expression. In the latter case, WNT4 expression was driven by activated nuclear factor kappa-B signaling in ILC-LTED cells. In ILC and ILC-LTED cells, WNT4 led to suppression of CDKN1A/p21, which is critical for ILC cell proliferation. CDKN1A knockdown partially reversed the effects of WNT4 knockdown. CONCLUSIONS WNT4 drives a novel signaling pathway in ILC cells, with a critical role in estrogen-induced growth that may also mediate endocrine resistance. WNT4 signaling may represent a novel target to modulate endocrine response specifically for patients with ILC.
Collapse
Affiliation(s)
- Matthew J Sikora
- Women's Cancer Research Center, University of Pittsburgh, Pittsburgh, PA, USA. .,Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, PA, USA. .,Present address: Department of Pathology, University of Colorado - Anschutz Medical Campus, Mail Stop 8104, Research Complex 1 South, Room 5117, 12801 East 17th Avenue, Aurora, CO, 80045, USA.
| | - Britta M Jacobsen
- Department of Pathology, University of Colorado - Anschutz Medical Campus, Aurora, CO, USA
| | - Kevin Levine
- Women's Cancer Research Center, University of Pittsburgh, Pittsburgh, PA, USA.,Department of Pathology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Jian Chen
- Women's Cancer Research Center, University of Pittsburgh, Pittsburgh, PA, USA
| | - Nancy E Davidson
- Women's Cancer Research Center, University of Pittsburgh, Pittsburgh, PA, USA.,Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Adrian V Lee
- Women's Cancer Research Center, University of Pittsburgh, Pittsburgh, PA, USA.,Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Caroline M Alexander
- McArdle Laboratory for Cancer Research, University of Wisconsin-Madison, Madison, WI, USA
| | - Steffi Oesterreich
- Women's Cancer Research Center, University of Pittsburgh, Pittsburgh, PA, USA.,Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, PA, USA
| |
Collapse
|
16
|
Li H, Wang Q, Zhang L, Bao H, Zhang H. [Regulation Mechanism of MTA3 in the Apoptosis of NSCLC Cells]. ZHONGGUO FEI AI ZA ZHI = CHINESE JOURNAL OF LUNG CANCER 2016; 18:610-5. [PMID: 26483332 PMCID: PMC6000090 DOI: 10.3779/j.issn.1009-3419.2015.10.02] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
背景与目的 肿瘤转移基因(metastasis associated gene, MTA)是一个肿瘤候选基因家族, 主要包括MTA1、MTA2、MTA3, 已有的研究证实在不同肿瘤中MTA3发挥着相反的作用, 本研究旨在探讨MTA3在肺癌细胞中调控细胞凋亡方面的影响。 方法 应用Western blot方法和Real-time PCR方法检测肺癌细胞系A549和H157中MTA3的转染效率, 流式细胞仪方法检测上调/下调MTA3后肺癌细胞凋亡情况, Western blot方法检测下调MTA3后凋亡相关基因的表达。 结果 在肺癌细胞系A549和H157中干扰MTA3后则促进细胞凋亡, 同时引起凋亡相关蛋白Bax、Cleved-Caspase-3、p-PARP表达上调及Bcl-2表达下调。 结论 MTA3在肺癌细胞系A549和H157细胞中通过抑制凋亡相关基因的表达抑制细胞凋亡。
Collapse
Affiliation(s)
- Haiying Li
- Department of Pathology, College of Basic Medical Science, Xuzhou Medical College, Xuzhou 221000, China
| | - Qingling Wang
- Department of Pathology, College of Basic Medical Science, Xuzhou Medical College, Xuzhou 221000, China
| | - Lin Zhang
- Department of Pathology, College of Basic Medical Science, Xuzhou Medical College, Xuzhou 221000, China
| | - Haijun Bao
- Department of Pathology, College of Basic Medical Science, Xuzhou Medical College, Xuzhou 221000, China
| | - Heng Zhang
- Department of Pathology, College of Basic Medical Science, Xuzhou Medical College, Xuzhou 221000, China
| |
Collapse
|
17
|
Structure, expression and functions of MTA genes. Gene 2016; 582:112-21. [PMID: 26869315 DOI: 10.1016/j.gene.2016.02.012] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Revised: 02/04/2016] [Accepted: 02/04/2016] [Indexed: 11/23/2022]
Abstract
Metastatic associated proteins (MTA) are integrators of upstream regulatory signals with the ability to act as master coregulators for modifying gene transcriptional activity. The MTA family includes three genes and multiple alternatively spliced variants. The MTA proteins neither have their own enzymatic activity nor have been shown to directly interact with DNA. However, MTA proteins interact with a variety of chromatin remodeling factors and complexes with enzymatic activities for modulating the plasticity of nucleosomes, leading to the repression or derepression of target genes or other extra-nuclear and nucleosome remodeling and histone deacetylase (NuRD)-complex independent activities. The functions of MTA family members are driven by the steady state levels and subcellular localization of MTA proteins, the dynamic nature of modifying signals and enzymes, the structural features and post-translational modification of protein domains, interactions with binding proteins, and the nature of the engaged and resulting features of nucleosomes in the proximity of target genes. In general, MTA1 and MTA2 are the most upregulated genes in human cancer and correlate well with aggressive phenotypes, therapeutic resistance, poor prognosis and ultimately, unfavorable survival of cancer patients. Here we will discuss the structure, expression and functions of the MTA family of genes in the context of cancer cells.
Collapse
|
18
|
Torchy MP, Hamiche A, Klaholz BP. Structure and function insights into the NuRD chromatin remodeling complex. Cell Mol Life Sci 2015; 72:2491-507. [PMID: 25796366 PMCID: PMC11114056 DOI: 10.1007/s00018-015-1880-8] [Citation(s) in RCA: 143] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Revised: 03/02/2015] [Accepted: 03/04/2015] [Indexed: 01/09/2023]
Abstract
Transcription regulation through chromatin compaction and decompaction is regulated through various chromatin-remodeling complexes such as nucleosome remodeling and histone deacetylation (NuRD) complex. NuRD is a 1 MDa multi-subunit protein complex which comprises many different subunits, among which histone deacetylases HDAC1/2, ATP-dependent remodeling enzymes CHD3/4, histone chaperones RbAp46/48, CpG-binding proteins MBD2/3, the GATAD2a (p66α) and/or GATAD2b (p66β) and specific DNA-binding proteins MTA1/2/3. Here, we review the currently known crystal and NMR structures of these subunits, the functional data and their relevance for biomedical research considering the implication of NuRD subunits in cancer and various other diseases. The complexity of this macromolecular assembly, and its poorly understood mode of interaction with the nucleosome, the repeating unit of chromatin, illustrate that this complex is a major challenge for structure-function relationship studies which will be tackled best by an integrated biology approach.
Collapse
Affiliation(s)
- Morgan P. Torchy
- Department of Integrated Structural Biology, Centre for Integrative Biology (CBI), Institute of Genetics and of Molecular and Cellular Biology (IGBMC), 1 rue Laurent Fries, Illkirch, France
- Centre National de la Recherche Scientifique (CNRS) UMR 7104, Illkirch, France
- Institut National de la Santé et de la Recherche Médicale (INSERM) U964, Illkirch, France
- Université de Strasbourg, Strasbourg, France
| | - Ali Hamiche
- Department of Integrated Structural Biology, Centre for Integrative Biology (CBI), Institute of Genetics and of Molecular and Cellular Biology (IGBMC), 1 rue Laurent Fries, Illkirch, France
- Centre National de la Recherche Scientifique (CNRS) UMR 7104, Illkirch, France
- Institut National de la Santé et de la Recherche Médicale (INSERM) U964, Illkirch, France
- Université de Strasbourg, Strasbourg, France
| | - Bruno P. Klaholz
- Department of Integrated Structural Biology, Centre for Integrative Biology (CBI), Institute of Genetics and of Molecular and Cellular Biology (IGBMC), 1 rue Laurent Fries, Illkirch, France
- Centre National de la Recherche Scientifique (CNRS) UMR 7104, Illkirch, France
- Institut National de la Santé et de la Recherche Médicale (INSERM) U964, Illkirch, France
- Université de Strasbourg, Strasbourg, France
| |
Collapse
|
19
|
Shan S, Hui G, Hou F, Shi H, Zhou G, Yan H, Wang L, Liu J. Expression of metastasis-associated protein 3 in human brain glioma related to tumor prognosis. Neurol Sci 2015; 36:1799-804. [PMID: 26002011 DOI: 10.1007/s10072-015-2252-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2015] [Accepted: 05/13/2015] [Indexed: 11/28/2022]
Abstract
Glioma represents a disparate group of tumors characterized by high invasion ability, and therefore it is of clinical significance to identify molecular markers and therapeutic targets for better clinical management. Previously, metastasis-associated protein family (MTA) is considered to promote tumor cell invasion and metastasis of human malignancies. Recently, the newly identified MTA3 has been shown to play conflicting roles in human malignancies, while the expression pattern and potential clinical significance of MTA3 in human glioma have not been addressed yet. In the present study, we investigated the protein expression of MTA3 by immunohistochemistry assay and analyzed its association with glioma prognosis in 186 cases of patients. Results showed that MTA3 expression was decreased in glioma compared with that in normal brain (P < 0.05). In addition, tumors with high MTA3 expression were more likely to be of low WHO grade (P = 0.005) and reserve of body function (P = 0.014). Survival analysis showed that decreased MTA3 expression was independently associated with unfavorable overall survival of patients (P < 0.001). These results provide the first evidence that MTA3 expression was decreased in human glioma and negatively associated with prognosis of patients, suggesting that MTA3 may play a tumor suppressor role in glioma.
Collapse
Affiliation(s)
- Shouqin Shan
- Qingdao First Sanatorium of Jinan Military Region, Qingdao, 266071, Shandong, People's Republic of China.
| | - Guangyan Hui
- Qingdao First Sanatorium of Jinan Military Region, Qingdao, 266071, Shandong, People's Republic of China
| | - Fanggao Hou
- Qingdao Second Sanatorium of Jinan Military Region, Qingdao, 266071, Shandong, People's Republic of China
| | - Hua Shi
- Qingdao First Sanatorium of Jinan Military Region, Qingdao, 266071, Shandong, People's Republic of China
| | - Guoqing Zhou
- Qingdao First Sanatorium of Jinan Military Region, Qingdao, 266071, Shandong, People's Republic of China
| | - Han Yan
- Qingdao First Sanatorium of Jinan Military Region, Qingdao, 266071, Shandong, People's Republic of China
| | - Lu Wang
- Qingdao First Sanatorium of Jinan Military Region, Qingdao, 266071, Shandong, People's Republic of China
| | - Jinfeng Liu
- Qingdao First Sanatorium of Jinan Military Region, Qingdao, 266071, Shandong, People's Republic of China
| |
Collapse
|
20
|
Qin W, Du N, Zhang L, Wu X, Hu Y, Li X, Shen N, Li Y, Yang B, Xu C, Fang Z, Lu Y, Zhang Y, Du Z. Genistein alleviates pressure overload-induced cardiac dysfunction and interstitial fibrosis in mice. Br J Pharmacol 2015; 172:5559-72. [PMID: 25362897 DOI: 10.1111/bph.13002] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2014] [Revised: 10/23/2014] [Accepted: 10/28/2014] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND AND PURPOSE Pressure overload-induced cardiac interstitial fibrosis is viewed as a major cause of heart failure in patients with hypertension or aorta atherosclerosis. The purpose of this study was to investigate the effects and the underlying mechanisms of genistein, a natural phytoestrogen found in soy bean extract, on pressure overload-induced cardiac fibrosis. EXPERIMENTAL APPROACH Genisten was administered to mice with pressure overload induced by transverse aortic constriction. Eight weeks later, its effects on cardiac dysfunction, hypertrophy and fibrosis were determined. Its effects on proliferation, collagen production and myofibroblast transformation of cardiac fibroblasts (CFs) and the signalling pathways were also assessed in vitro. KEY RESULTS Pressure overload-induced cardiac dysfunction, hypertrophy and fibrosis were markedly attenuated by genistein. In cultured CFs, genistein inhibited TGFβ1-induced proliferation, collagen production and myofibroblast transformation. Genistein suppressed TGFβ-activated kinase 1 (TAK1) expression and produced anti-fibrotic effects by blocking the TAK1/MKK4/JNK pathway. Further analysis indicated that it up-regulated oestrogen-dependent expression of metastasis-associated gene 3 (MTA3), which was found to be a negative regulator of TAK1. Silencing MTA3 by siRNA, or inhibiting the activity of the MTA3-NuRD complex with trichostatin A, abolished genistein's anti-fibrotic effects. CONCLUSIONS AND IMPLICATIONS Genistein improved cardiac function and inhibited cardiac fibrosis in response to pressure overload. The underlying mechanism may involve regulation of the MTA3/TAK1/MKK4/JNK signalling pathway. Genistein may have potential as a novel agent for prevention and therapy of cardiac disorders associated with fibrosis.
Collapse
Affiliation(s)
- Wei Qin
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), Harbin Medical University, Harbin, Heilongjiang, China
| | - Ning Du
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), Harbin Medical University, Harbin, Heilongjiang, China
| | - Longyin Zhang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), Harbin Medical University, Harbin, Heilongjiang, China
| | - Xianxian Wu
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), Harbin Medical University, Harbin, Heilongjiang, China
| | - Yingying Hu
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), Harbin Medical University, Harbin, Heilongjiang, China
| | - Xiaoguang Li
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), Harbin Medical University, Harbin, Heilongjiang, China
| | - Nannan Shen
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), Harbin Medical University, Harbin, Heilongjiang, China
| | - Yang Li
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), Harbin Medical University, Harbin, Heilongjiang, China
| | - Baofeng Yang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), Harbin Medical University, Harbin, Heilongjiang, China.,Institute of Cardiovascular Research, Harbin Medical University, Harbin, Heilongjiang, China
| | - Chaoqian Xu
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), Harbin Medical University, Harbin, Heilongjiang, China
| | - Zhiwei Fang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), Harbin Medical University, Harbin, Heilongjiang, China
| | - Yanjie Lu
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), Harbin Medical University, Harbin, Heilongjiang, China.,Institute of Cardiovascular Research, Harbin Medical University, Harbin, Heilongjiang, China
| | - Yong Zhang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), Harbin Medical University, Harbin, Heilongjiang, China.,Institute of Cardiovascular Research, Harbin Medical University, Harbin, Heilongjiang, China
| | - Zhimin Du
- Institute of Clinical Pharmacy, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| |
Collapse
|
21
|
Basta J, Rauchman M. The nucleosome remodeling and deacetylase complex in development and disease. Transl Res 2015; 165:36-47. [PMID: 24880148 PMCID: PMC4793962 DOI: 10.1016/j.trsl.2014.05.003] [Citation(s) in RCA: 106] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2014] [Revised: 05/02/2014] [Accepted: 05/05/2014] [Indexed: 02/07/2023]
Abstract
The nucleosome remodeling and deacetylase (NuRD) complex is one of the major chromatin remodeling complexes found in cells. It plays an important role in regulating gene transcription, genome integrity, and cell cycle progression. Through its impact on these basic cellular processes, increasing evidence indicates that alterations in the activity of this macromolecular complex can lead to developmental defects, oncogenesis, and accelerated aging. Recent genetic and biochemical studies have elucidated the mechanisms of NuRD action in modifying the chromatin landscape. These advances have the potential to lead to new therapeutic approaches to birth defects and cancer.
Collapse
Affiliation(s)
- Jeannine Basta
- Department of Internal Medicine, Saint Louis University, St. Louis, Missouri; Department of Biochemistry and Molecular Biology, Saint Louis University, St. Louis, Missouri; John Cochran Division, VA St. Louis Health Care System, St. Louis, Missouri
| | - Michael Rauchman
- Department of Internal Medicine, Saint Louis University, St. Louis, Missouri; Department of Biochemistry and Molecular Biology, Saint Louis University, St. Louis, Missouri; John Cochran Division, VA St. Louis Health Care System, St. Louis, Missouri.
| |
Collapse
|
22
|
Abstract
Although the functional significance of the metastasic tumor antigen (MTA) family of chromatin remodeling proteins in the pathobiology of cancer is fairly well recognized, the physiological role of MTA proteins continues to be an understudied research area and is just beginning to be recognized. Similar to cancer cells, MTA1 also modulates the expression of target genes in normal cells either by acting as a corepressor or coactivator. In addition, physiological functions of MTA proteins are likely to be influenced by its differential expression, subcellular localization, and regulation by upstream modulators and extracellular signals. This review summarizes our current understanding of the physiological functions of the MTA proteins in model systems. In particular, we highlight recent advances of the role MTA proteins play in the brain, eye, circadian rhythm, mammary gland biology, spermatogenesis, liver, immunomodulation and inflammation, cellular radio-sensitivity, and hematopoiesis and differentiation. Based on the growth of knowledge regarding the exciting new facets of the MTA family of proteins in biology and medicine, we speculate that the next burst of findings in this field may reveal further molecular regulatory insights of non-redundant functions of MTA coregulators in the normal physiology as well as in pathological conditions outside cancer.
Collapse
Affiliation(s)
- Nirmalya Sen
- Department of Biochemistry and Molecular Medicine, George Washington University, Washington, DC, 20037, USA
| | | | | |
Collapse
|
23
|
Brüning A, Blankenstein T, Jückstock J, Mylonas I. Function and regulation of MTA1 and MTA3 in malignancies of the female reproductive system. Cancer Metastasis Rev 2014; 33:943-51. [PMID: 25319202 DOI: 10.1007/s10555-014-9520-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The family of metastasis-associated (MTA) genes is a small group of transcriptional co-regulators which are involved in various physiological functions, ranging from lymphopoietic cell differentiation to the development and maintenance of epithelial cell adhesions. By recruiting histone-modifying enzymes to specific promoter sequences, MTA proteins can function both as transcriptional repressors and activators of a number of cancer-relevant proteins, including Snail, E-cadherin, signal transducer and activator of transcriptions (STATs), and the estrogen receptor. Their involvement in the epithelial-mesenchymal transition process and regulatory interactions with estrogen receptor activity has made MTA proteins highly interesting research candidates, especially in the field of hormone-sensitive breast cancer and malignancies of the female reproductive tract. This review focuses on the current knowledge about the function and regulation of MTA1 and MTA3 proteins in gynecological cancer, including ovarian, endometrial, and cervical tumors.
Collapse
Affiliation(s)
- Ansgar Brüning
- Department of Obstetrics/Gynecology, Molecular Biology Laboratory, University Hospital Munich, Maistrasse 11, 80337, Munich, Germany,
| | | | | | | |
Collapse
|
24
|
Abstract
Metastasis-associated gene or metastasis tumor antigen 1 (MTA1) is a new member of cancer progression-related gene family. It was first identified in rat mammary adenocarcinoma and later recognized as an important constituent of nucleosomal remodeling complex (NuRD), displaying dual regulatory functions as a co-repressor and co-activator for a large number of genes. Chromatin remodelers are ATP-dependent multi-protein chromatin modifying machines. These complexes alter the nucleosome positioning regulating the accessibility of genomic DNA to various transcription factors and thus modulate eukaryotic gene transcription. Since its identification two decades ago, MTA1 has been reported to be overexpressed in many cancers. Moreover, its overexpression has also been correlated with transformation and tumor progression. Furthermore, MTA1 has been shown to modulate the response of several tumor suppressor genes like p53 and oncogenes like c-myc. Taken together, current literature suggests that MTA proteins, especially MTA1, act as a master co-regulatory molecule involved in the carcinogenesis and progression of various malignant tumors. The primary focus of this review is to provide an overview of the MTA proteins with special emphasis on its role in cancer and use as a marker for cancer progression and potential target for therapy.
Collapse
Affiliation(s)
- Ekjot Kaur
- Advanced Centre for Treatment, Research and Education in Cancer, Tata Memorial Center, Navi Mumbai, India
| | | | | |
Collapse
|
25
|
Abstract
The subcellular localization of a protein is closely linked to and indicates its function. The metastatic tumor antigen (MTA) family has been under continuous investigation since its identification two decades ago. MTA1, MTA2, and MTA3 are the main members of the MTA family. MTA1, as the representative member of this family, has been shown to be widely expressed in both embryonic and adult tissues, as well as in normal and cancerous conditions, indicating that MTA1 has functions both in physiological and pathological contexts. MTA1 is expressed at a higher level in most cancers than in their normal tissue counterparts. Even in normal cells, MTA1 levels vary a great deal from tissue to tissue. Importantly, MTA1 shows a multiple localization pattern in the cell, as do MTA2 and MTA3. Different MTA components in different subcellular compartments may exert different molecular functions in the cell. Previous studies revealed that MTA1 and MTA2 are predominately localized to the nucleus, while MTA3 is observed in both the nucleus and cytoplasm. Recent studies have reported that MTA1 is located in the nucleus, cytoplasm, and the nuclear envelope. In the nucleus, MTA1 dynamically interacts with chromatin in a MTA1-K532 methylation-dependent manner, whereas cytoplasmic MTA1 binds to the microtubule skeleton. MTA1 also shows a dynamic distribution during the cell cycle. Further investigations are needed to identify the exact subcellular localizations of MTA proteins. We review the sub-cellular localization patterns of the MTA family members and give a comprehensive overview of their respective molecular activities in multiple contexts.
Collapse
Affiliation(s)
- Jian Liu
- State Key Laboratory of Molecular Oncology, Cancer Institute/Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, 100021, China
| | | | | | | |
Collapse
|
26
|
Levenson AS, Kumar A, Zhang X. MTA family of proteins in prostate cancer: biology, significance, and therapeutic opportunities. Cancer Metastasis Rev 2014; 33:929-42. [PMID: 25332143 DOI: 10.1007/s10555-014-9519-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
This review summarizes our current understanding of the role of MTA family members, particularly MTA1, with a special emphasis on prostate cancer. The interest for the role of MTA1 in prostate cancer was boosted from our initial findings of MTA1 as a component of "vicious cycle" and a member of bone metastatic signature. Analysis of human prostate tissues, xenograft and transgenic mouse models of prostate cancer, and prostate cancer cell lines has provided support for the role of MTA1 in advanced disease and its potential role in initial stages of prostate tumor progression. Recent discoveries have highlighted a critical role for MTA1 in inflammation-triggered prostate tumorigenesis, epithelial-to-mesenchymal transition, prostate cancer survival pathways, and site metastasis. Evidence for MTA1 as an upstream negative regulator of tumor suppressor genes such as p53 and PTEN has also emerged. MTA1 is involved in prostate tumor angiogenesis by regulating several pro-angiogenic factors. Evidence for MTA1 as a prognostic marker for aggressive prostate cancer and disease recurrence has been described. Importantly, pharmacological dietary agents, namely resveratrol and its analogs, are potentially applicable to prostate cancer prevention, treatment, and control of cancer progression due to their potent inhibitory effects on MTA proteins.
Collapse
Affiliation(s)
- Anait S Levenson
- Cancer Institute, University of Mississippi Medical Center, 2500 North State Street, Jackson, MS, 39216, USA,
| | | | | |
Collapse
|
27
|
Manavathi B, Samanthapudi VSK, Gajulapalli VNR. Estrogen receptor coregulators and pioneer factors: the orchestrators of mammary gland cell fate and development. Front Cell Dev Biol 2014; 2:34. [PMID: 25364741 PMCID: PMC4207046 DOI: 10.3389/fcell.2014.00034] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2014] [Accepted: 07/21/2014] [Indexed: 12/14/2022] Open
Abstract
The steroid hormone, 17β-estradiol (E2), plays critical role in various cellular processes such as cell proliferation, differentiation, migration and apoptosis, and is essential for reproduction and mammary gland development. E2 actions are mediated by two classical nuclear hormone receptors, estrogen receptor α and β (ERs). The activity of ERs depends on the coordinated activity of ligand binding, post-translational modifications (PTMs), and importantly the interaction with their partner proteins called “coregulators.” Because coregulators are proved to be crucial for ER transcriptional activity, and majority of breast cancers are ERα positive, an increased interest in the field has led to the identification of a large number of coregulators. In the last decade, gene knockout studies using mouse models provided impetus to our further understanding of the role of these coregulators in mammary gland development. Several coregulators appear to be critical for terminal end bud (TEB) formation, ductal branching and alveologenesis during mammary gland development. The emerging studies support that, coregulators along with the other ER partner proteins called “pioneer factors” together contribute significantly to E2 signaling and mammary cell fate. This review discusses emerging themes in coregulator and pioneer factor mediated action on ER functions, in particular their role in mammary gland cell fate and development.
Collapse
Affiliation(s)
- Bramanandam Manavathi
- Department of Biochemistry, School of Life Sciences, University of Hyderabad Hyderabad, India
| | | | | |
Collapse
|
28
|
Shore AN, Rosen JM. Regulation of mammary epithelial cell homeostasis by lncRNAs. Int J Biochem Cell Biol 2014; 54:318-30. [PMID: 24680897 DOI: 10.1016/j.biocel.2014.03.012] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2013] [Revised: 03/14/2014] [Accepted: 03/18/2014] [Indexed: 01/02/2023]
Abstract
The epithelial cells of the mammary gland develop primarily after birth and undergo surges of hormonally regulated proliferation, differentiation, and apoptosis during both puberty and pregnancy. Thus, the mammary gland is a useful model to study fundamental processes of development and adult tissue homeostasis, such as stem and progenitor cell regulation, cell fate commitment, and differentiation. Long noncoding RNAs (lncRNAs) are emerging as prominent regulators of these essential processes, as their extraordinary versatility allows them to modulate gene expression via diverse mechanisms at both transcriptional and post-transcriptional levels. Not surprisingly, lncRNAs are also aberrantly expressed in cancer and promote tumorigenesis by disrupting vital cellular functions, such as cell cycle, survival, and migration. In this review, we first broadly summarize the functions of lncRNAs in mammalian development and cancer. Then we focus on what is currently known about the role of lncRNAs in mammary gland development and breast cancer. This article is part of a Directed Issue entitled: The Non-coding RNA Revolution.
Collapse
Affiliation(s)
- Amy N Shore
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, United States.
| | - Jeffrey M Rosen
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, United States
| |
Collapse
|
29
|
Chu H, Chen X, Wang H, Du Y, Wang Y, Zang W, Li P, Li J, Chang J, Zhao G, Zhang G. MiR-495 regulates proliferation and migration in NSCLC by targeting MTA3. Tumour Biol 2013; 35:3487-94. [PMID: 24293376 DOI: 10.1007/s13277-013-1460-1] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2013] [Accepted: 11/19/2013] [Indexed: 11/25/2022] Open
Abstract
Our previous studies have showed that metastasis-associated protein 3 (MTA 3) is overexpressed in non-small cell lung cancer (NSCLC) tissue, and increased MTA3 mRNA levels is a risk factor of lymph node metastasis. Using bioinformatics analyses, we found that MTA3 was a potential target of miR-495. However, the pathophysiological role of miR-495 and its relevance to the growth and development of NSCLC have yet to be investigated. The purpose of this study was to elucidate the molecular mechanisms by which miR-495 acts as a tumor suppressor in NSCLC. qRT-PCR data showed significant downregulation of miR-495 in 56 NSCLC tissue samples and 5 lung cancer cell lines, compared with their adjacent normal tissue; furthermore, western blotting analysis revealed MTA3 protein was overexpressed in the tumor samples compared with the matched adjacent normal tissue. MiR-495 was shown to not only inhibit the proliferation of lung cancer cells (A549 and Calu-3) but also to inhibit cell migration in vitro. Using western blotting and luciferase assays, MTA3 was identified as a target of miR-495. These findings suggest the importance of miR-495 targeting of MTA3 in the regulation of lung cancer growth and migration.
Collapse
Affiliation(s)
- Heying Chu
- Department of Respiratory Medicine, The First Affiliated Hospital of Zhengzhou University, No.1 Jianshe Road, Zhengzhou, 450052, Henan, China
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
30
|
Jin Y, Li F, Zheng C, Wang Y, Fang Z, Guo C, Wang X, Liu H, Deng L, Li C, Wang H, Chen H, Feng Y, Ji H. NEDD9 promotes lung cancer metastasis through epithelial-mesenchymal transition. Int J Cancer 2013; 134:2294-304. [DOI: 10.1002/ijc.28568] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2013] [Revised: 09/04/2013] [Accepted: 10/22/2013] [Indexed: 11/07/2022]
Affiliation(s)
- Yujuan Jin
- State Key Laboratory of Cell Biology; Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences; Shanghai People's Republic of China
| | - Fei Li
- State Key Laboratory of Cell Biology; Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences; Shanghai People's Republic of China
| | - Chao Zheng
- State Key Laboratory of Cell Biology; Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences; Shanghai People's Republic of China
| | - Ye Wang
- State Key Laboratory of Cell Biology; Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences; Shanghai People's Republic of China
| | - Zhaoyuan Fang
- State Key Laboratory of Cell Biology; Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences; Shanghai People's Republic of China
| | - Chenchen Guo
- State Key Laboratory of Cell Biology; Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences; Shanghai People's Republic of China
| | - Xujun Wang
- Department of Bioinformatics; School of Life Science and Technology, Tongji University; Shanghai People's Republic of China
| | - Hongyan Liu
- State Key Laboratory of Cell Biology; Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences; Shanghai People's Republic of China
| | - Lei Deng
- Department of Bioinformatics; School of Life Science and Technology, Tongji University; Shanghai People's Republic of China
| | - Cheng Li
- Department of Bioinformatics; School of Life Science and Technology, Tongji University; Shanghai People's Republic of China
| | - Hongda Wang
- State Key Laboratory of Electroanalytical Chemistry; Changchun Institute of Applied Chemistry, Chinese Academy of Sciences; Changchun Jilin People's Republic of China
| | - Haiquan Chen
- Department of Thoracic Surgery; Fudan University Shanghai Cancer Center; Shanghai People's Republic of China
- Department of Oncology; Shanghai Medical College, Fudan University; Shanghai People's Republic of China
| | - Yan Feng
- State Key Laboratory of Cell Biology; Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences; Shanghai People's Republic of China
| | - Hongbin Ji
- State Key Laboratory of Cell Biology; Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences; Shanghai People's Republic of China
| |
Collapse
|
31
|
Zhang H, Lin W, Kannan K, Luo L, Li J, Chao PW, Wang Y, Chen YP, Gu J, Yen L. Aberrant chimeric RNA GOLM1-MAK10 encoding a secreted fusion protein as a molecular signature for human esophageal squamous cell carcinoma. Oncotarget 2013; 4:2135-43. [PMID: 24243830 PMCID: PMC3875775 DOI: 10.18632/oncotarget.1465] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
It is increasingly recognized that chimeric RNAs may exert a novel layer of cellular complexity that contributes to oncogenesis and cancer progression, and could be utilized as molecular biomarkers and therapeutic targets. To date yet no fusion chimeric RNAs have been identified in esophageal cancer, the 6th most frequent cause of cancer death in the world. While analyzing the expression of 32 recurrent cancer chimeric RNAs in esophageal squamous cell carcinoma (ESCC) from patients and cancer cell lines, we identified GOLM1-MAK10, as a highly cancer-enriched chimeric RNA in ESCC. In situ hybridization revealed that the expression of the chimera is largely restricted to cancer cells in patient tumors, and nearly undetectable in non-neoplastic esophageal tissue from normal subjects. The aberrant chimera closely correlated with histologic differentiation and lymph node metastasis. Furthermore, we demonstrate that chimera GOLM1-MAK10 encodes a secreted fusion protein. Mechanistic studies reveal that GOLM1-MAK10 is likely derived from transcription read-through/splicing rather than being generated from a fusion gene. Collectively, these findings provide novel insights into the molecular mechanism involved in ESCC and provide a novel potential target for future therapies. The secreted fusion protein translated from GOLM1-MAK10 could also serve as a unique protein signature detectable by standard non-invasive assays. These observations are critical as there is no clinically useful molecular signature available for detecting this deadly disease or monitoring the treatment response.
Collapse
Affiliation(s)
- Hao Zhang
- Department of Integrative Oncology, Affiliated Cancer Hospital, Shantou University Medical College, Shantou, Guangdong, China
- Cancer Research Center, Shantou University Medical College, Shantou, Guangdong, China
- Tumor Tissue Bank, Affiliated Cancer Hospital, Shantou University Medical College, Shantou, Guangdong, China
| | - Wan Lin
- Cancer Research Center, Shantou University Medical College, Shantou, Guangdong, China
| | - Kalpana Kannan
- Department of Pathology & Immunology, Baylor College of Medicine, Houston, TX, USA
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, USA
| | - Liming Luo
- Department of Pathology & Immunology, Baylor College of Medicine, Houston, TX, USA
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, USA
| | - Jing Li
- Department of Pathology, Shantou University Medical College, Shantou, Guangdong, China
| | - Pei-Wen Chao
- Department of Pathology & Immunology, Baylor College of Medicine, Houston, TX, USA
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, USA
| | - Yan Wang
- Department of Pathology & Immunology, Baylor College of Medicine, Houston, TX, USA
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, USA
| | - Yu-Ping Chen
- Department of Thoracic Surgery, Affiliated Cancer Hospital, Shantou University Medical College, Shantou, Guangdong, China
| | - Jiang Gu
- Department of Pathology, Shantou University Medical College, Shantou, Guangdong, China
| | - Laising Yen
- Department of Pathology & Immunology, Baylor College of Medicine, Houston, TX, USA
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, USA
| |
Collapse
|
32
|
Zheng S, Du Y, Chu H, Chen X, Li P, Wang Y, Ma Y, Wang H, Zang W, Zhang G, Zhao G. Analysis of MAT3 gene expression in NSCLC. Diagn Pathol 2013; 8:166. [PMID: 24107548 PMCID: PMC3853379 DOI: 10.1186/1746-1596-8-166] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2013] [Accepted: 09/24/2013] [Indexed: 11/10/2022] Open
Abstract
Background Many studies have suggested different roles of Metastasis-associated protein 3 (MAT3) in different types of human cancers. However, expression of MAT3 in primary lung cancer and its relationship with clinicopathological factors have not been examined and the biological roles of MTA3 in lung cancer cells are still unclear. Methods The expression of MAT3 mRNA and protein were detected with quantitative real-time RT-PCR and immunohistochemical methods in 118 NSCLC samples and corresponding non-neoplastic samples. Survival curves were made with follow-up data. The relations of the prognosis with clinical and pathological characteristics were analyzed. Results The expression level of MAT3 mRNA and the positive rate of MAT3 protein were significantly higher in NSCLC samples than that in non-neoplastic samples, and in NSCLC samples with lymph node metastasis than that in NSCLC samples without lymph node metastasis (P < 0.01). MAT3 mRNA expression level was a risk factor of lymph node metastasis in patients with NSCLC (P = 0.006). There were significant differences in survival curves between lymph node metastatic group and non-metastatic group (P = 0.000), among groups of MAT3 positive and negative (P = 0.000), among groups of TNM stage I, II and III (P = 0.000) and among groups of tumor status T1, T2 and T3T4 (P = 0.000); but no statistical significance between male patients and female patients (P = 0.516), between ≥60 years old patients and <60 years old patients (P = 0.133), between histology types adenocarcinoma and squamous cell carcinoma (P = 0.865) and between well differentiation and moderate-poor differentiation (P = 0.134). The level of MAT3 mRNA (P = 0.000) and protein (P = 0.000) were risk factors of survival. Conclusion Our study showed that MAT3 over-expression in NSCLC tissue, and MAT3 mRNA level is a risk factor of lymph node metastasis. The level of MAT3 mRNA and protein were risk factors of survival in patients with NSCLC. It suggested that this antigen could be used as a simple and efficient parameter with which to identify high-risk patients. Virtual slides The virtual slides for this article can be found here: http://www.diagnosticpathology.diagnomx.eu/vs/5585901065503943.
Collapse
Affiliation(s)
- Shangen Zheng
- College of Basic Medical Sciences, Zhengzhou University, No,100 Kexue Road, Zhengzhou 450001, China.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
33
|
Li H, Sun L, Xu Y, Li Z, Luo W, Tang Z, Qiu X, Wang E. Overexpression of MTA3 Correlates with Tumor Progression in Non-Small Cell Lung Cancer. PLoS One 2013; 8:e66679. [PMID: 23840517 PMCID: PMC3686714 DOI: 10.1371/journal.pone.0066679] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2012] [Accepted: 05/09/2013] [Indexed: 11/18/2022] Open
Abstract
The objective of the current study was to investigate the expression pattern and clinicopathological significance of MTA3 in patients with non-small cell lung cancer (NSCLC). The expression profile of MTA3 in NSCLC tissues and adjacent noncancerous lung tissues was detected by immunohistochemistry. MTA3 was overexpressed in 62 of 108 (57.4%) human lung cancer samples and correlated with p-TNM stage (p<0.0001), nodal metastasis (p = 0.0009) and poor prognosis (p<0.05). In addition, the depletion of MTA3 expression with small interfering RNAs inhibited cell growth and colony formation in the A549 and H157 lung cancer cell lines. Moreover, MTA3 depletion induced cell cycle arrest at the G1/S boundary. Western blotting analysis revealed that the knockdown of MTA3 decreased the protein levels of cyclin A, cyclin D1 and p-Rb. These results indicate that MTA3 plays an important role in NSCLC progression.
Collapse
Affiliation(s)
- Haiying Li
- Department of Pathology, First Affiliated Hospital and College of Basic Medical Sciences, China Medical University, Shenyang, Liaoning, China
| | - Liangliang Sun
- Department of Pathology, First Affiliated Hospital and College of Basic Medical Sciences, China Medical University, Shenyang, Liaoning, China
| | - Ying Xu
- Department of Pathology, First Affiliated Hospital and College of Basic Medical Sciences, China Medical University, Shenyang, Liaoning, China
| | - Zixuan Li
- Department of Pathology, First Affiliated Hospital and College of Basic Medical Sciences, China Medical University, Shenyang, Liaoning, China
| | - Wenting Luo
- Department of Pathology, First Affiliated Hospital and College of Basic Medical Sciences, China Medical University, Shenyang, Liaoning, China
| | - Zhongping Tang
- Department of Pathology, First Affiliated Hospital and College of Basic Medical Sciences, China Medical University, Shenyang, Liaoning, China
| | - Xueshan Qiu
- Department of Pathology, First Affiliated Hospital and College of Basic Medical Sciences, China Medical University, Shenyang, Liaoning, China
- * E-mail:
| | - Enhua Wang
- Department of Pathology, First Affiliated Hospital and College of Basic Medical Sciences, China Medical University, Shenyang, Liaoning, China
| |
Collapse
|
34
|
Hipper C, Brault V, Ziegler-Graff V, Revers F. Viral and cellular factors involved in Phloem transport of plant viruses. FRONTIERS IN PLANT SCIENCE 2013; 4:154. [PMID: 23745125 PMCID: PMC3662875 DOI: 10.3389/fpls.2013.00154] [Citation(s) in RCA: 118] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2013] [Accepted: 05/05/2013] [Indexed: 05/03/2023]
Abstract
Phloem transport of plant viruses is an essential step in the setting-up of a complete infection of a host plant. After an initial replication step in the first cells, viruses spread from cell-to-cell through mesophyll cells, until they reach the vasculature where they rapidly move to distant sites in order to establish the infection of the whole plant. This last step is referred to as systemic transport, or long-distance movement, and involves virus crossings through several cellular barriers: bundle sheath, vascular parenchyma, and companion cells for virus loading into sieve elements (SE). Viruses are then passively transported within the source-to-sink flow of photoassimilates and are unloaded from SE into sink tissues. However, the molecular mechanisms governing virus long-distance movement are far from being understood. While most viruses seem to move systemically as virus particles, some viruses are transported in SE as viral ribonucleoprotein complexes (RNP). The nature of the cellular and viral factors constituting these RNPs is still poorly known. The topic of this review will mainly focus on the host and viral factors that facilitate or restrict virus long-distance movement.
Collapse
Affiliation(s)
| | | | - Véronique Ziegler-Graff
- Laboratoire Propre du CNRS (UPR 2357), Virologie Végétale, Institut de Biologie Moléculaire des Plantes, Université de StrasbourgStrasbourg, France
| | - Frédéric Revers
- UMR 1332 de Biologie du Fruit et Pathologie, INRA, Université de BordeauxVillenave d’Ornon, France
| |
Collapse
|
35
|
Dong H, Guo H, Xie L, Wang G, Zhong X, Khoury T, Tan D, Zhang H. The metastasis-associated gene MTA3, a component of the Mi-2/NuRD transcriptional repression complex, predicts prognosis of gastroesophageal junction adenocarcinoma. PLoS One 2013; 8:e62986. [PMID: 23671646 PMCID: PMC3643958 DOI: 10.1371/journal.pone.0062986] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2013] [Accepted: 03/27/2013] [Indexed: 02/05/2023] Open
Abstract
Gastroesophageal junction (GEJ) adenocarcinoma carries a poor prognosis that is largely attributable to early and frequent metastasis. The acquisition of metastatic potential in cancer involves epithelial-to-mesenchymal transition (EMT). The metastasis-associated gene MTA3, a novel component of the Mi-2/NuRD transcriptional repression complex, was identified as master regulator of EMT through inhibition of Snail to increase E-cadherin expression in breast cancer. Here, we evaluated the expression pattern of the components of MTA3 pathway and the corresponding prognostic significance in GEJ adenocarcinoma. MTA3 expression was decreased at both protein and mRNA levels in tumor tissues compared to the non-tumorous and lowed MTA3 levels were noted in tumor cell lines with stronger metastatic potential. Immunohistochemical analysis of a cohort of 128 cases exhibited that patients with lower expression of MTA3 had poorer outcomes. Combined misexpression of MTA3, Snail and E-cadherin had stronger correlation with malignant properties. Collectively, results suggest that the MTA3-regulated EMT pathway is altered to favor EMT and, therefore, disease progression and that MTA3 expression was an independent prognostic factor in patients with GEJ adenocarcinoma.
Collapse
Affiliation(s)
- Hongmei Dong
- Department of Integrative Oncology, Affiliated Cancer Hospital of Shantou University Medical College, Shantou, China
- Cancer Research Center, Shantou University Medical College, Shantou, China
| | - Hong Guo
- Department of Radiation Oncology, Affiliated Cancer Hospital of Shantou University Medical College, Shantou, China
| | - Liangxi Xie
- Department of Radiation Oncology, Affiliated Cancer Hospital of Shantou University Medical College, Shantou, China
| | - Geng Wang
- Department of Thoracic Surgery, Affiliated Cancer Hospital of Shantou University Medical College, Shantou, China
| | - Xueyun Zhong
- Department of Pathology, Jinan University Medical College, Guangzhou, China
| | - Thaer Khoury
- Department of Pathology, Roswell Park Cancer Institute, Buffalo, New York, United States of America
| | - Dongfeng Tan
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, Texas, United States of America
| | - Hao Zhang
- Department of Integrative Oncology, Affiliated Cancer Hospital of Shantou University Medical College, Shantou, China
- Tumor Tissue Bank, Affiliated Cancer Hospital of Shantou University Medical College, Shantou, China
- Cancer Research Center, Shantou University Medical College, Shantou, China
- * E-mail:
| |
Collapse
|
36
|
Sonic hedgehog intradermal gene therapy using a biodegradable poly(β-amino esters) nanoparticle to enhance wound healing. Biomaterials 2012; 33:9148-56. [DOI: 10.1016/j.biomaterials.2012.09.005] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2012] [Accepted: 09/04/2012] [Indexed: 02/07/2023]
|
37
|
Stromal epigenetic dysregulation is sufficient to initiate mouse prostate cancer via paracrine Wnt signaling. Proc Natl Acad Sci U S A 2012. [PMID: 23184966 DOI: 10.1073/pnas.1217982109] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Carcinomas most often result from the stepwise acquisition of genetic alterations within the epithelial compartment. The surrounding stroma can also play an important role in cancer initiation and progression. Given the rare frequencies of genetic events identified in cancer-associated stroma, it is likely that epigenetic changes in the tumor microenvironment could contribute to its tumor-promoting activity. We use Hmga2 (High-mobility group AT-hook 2) an epigenetic regulator, to modify prostate stromal cells, and demonstrate that perturbation of the microenvironment by stromal-specific overexpression of this chromatin remodeling protein alone is sufficient to induce dramatic hyperplasia and multifocal prostatic intraepithelial neoplasia lesions from adjacent naïve epithelial cells. Importantly, we find that this effect is predominantly mediated by increased Wnt/β-catenin signaling. Enhancement of Hmga2-induced paracrine signaling by overexpression of androgen receptor in the stroma drives frank murine prostate adenocarcinoma in the adjacent epithelial tissues. Our findings provide compelling evidence for the critical contribution of epigenetic changes in stromal cells to multifocal tumorigenesis.
Collapse
|
38
|
Shore AN, Kabotyanski EB, Roarty K, Smith MA, Zhang Y, Creighton CJ, Dinger ME, Rosen JM. Pregnancy-induced noncoding RNA (PINC) associates with polycomb repressive complex 2 and regulates mammary epithelial differentiation. PLoS Genet 2012; 8:e1002840. [PMID: 22911650 PMCID: PMC3406180 DOI: 10.1371/journal.pgen.1002840] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2012] [Accepted: 06/01/2012] [Indexed: 02/07/2023] Open
Abstract
Pregnancy-induced noncoding RNA (PINC) and retinoblastoma-associated protein 46 (RbAp46) are upregulated in alveolar cells of the mammary gland during pregnancy and persist in alveolar cells that remain in the regressed lobules following involution. The cells that survive involution are thought to function as alveolar progenitor cells that rapidly differentiate into milk-producing cells in subsequent pregnancies, but it is unknown whether PINC and RbAp46 are involved in maintaining this progenitor population. Here, we show that, in the post-pubertal mouse mammary gland, mPINC is enriched in luminal and alveolar progenitors. mPINC levels increase throughout pregnancy and then decline in early lactation, when alveolar cells undergo terminal differentiation. Accordingly, mPINC expression is significantly decreased when HC11 mammary epithelial cells are induced to differentiate and produce milk proteins. This reduction in mPINC levels may be necessary for lactation, as overexpression of mPINC in HC11 cells blocks lactogenic differentiation, while knockdown of mPINC enhances differentiation. Finally, we demonstrate that mPINC interacts with RbAp46, as well as other members of the polycomb repressive complex 2 (PRC2), and identify potential targets of mPINC that are differentially expressed following modulation of mPINC expression levels. Taken together, our data suggest that mPINC inhibits terminal differentiation of alveolar cells during pregnancy to prevent abundant milk production and secretion until parturition. Additionally, a PRC2 complex that includes mPINC and RbAp46 may confer epigenetic modifications that maintain a population of mammary epithelial cells committed to the alveolar fate in the involuted gland. During pregnancy, epithelial cells of the mammary gland begin to undergo differentiation into functional alveolar cells that, during lactation, will produce and secrete milk proteins, thereby providing nourishment to offspring. Following lactation, the majority of alveolar cells die and the mammary gland remodels to a pre-pregnancy-like state in a process called involution. However, some alveolar cells survive involution, and these cells are thought to serve as alveolar progenitors that are able to rapidly proliferate and differentiate into milk-producing cells in subsequent pregnancies. Keeping alveolar cells from undergoing terminal differentiation during pregnancy and involution is vital for the preservation of an alveolar progenitor population. Here, we show that the long noncoding RNA, PINC, is downregulated in the mammary gland between late pregnancy and early lactation, when alveolar cells begin to terminally differentiate. This reduction of PINC levels may be necessary for lactation, as overexpression of PINC inhibits differentiation, while knockdown of PINC enhances differentiation of mammary epithelial cells. Finally, we find that PINC interacts with the chromatin-modifying complex PRC2, suggesting epigenetic regulation may be involved in maintaining alveolar progenitors in the pregnant and involuting mammary gland. These results emphasize the potential importance of lncRNA-PRC2 involvement in regulating cell fate during development.
Collapse
Affiliation(s)
- Amy N. Shore
- Program in Developmental Biology, Baylor College of Medicine, Houston, Texas, United States of America
| | - Elena B. Kabotyanski
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, United States of America
| | - Kevin Roarty
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, United States of America
| | - Martin A. Smith
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, Australia
| | - Yiqun Zhang
- Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas, United States of America
| | - Chad J. Creighton
- Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas, United States of America
| | - Marcel E. Dinger
- Diamantina Institute, The University of Queensland, Princess Alexandra Hospital, Brisbane, Australia
| | - Jeffrey M. Rosen
- Program in Developmental Biology, Baylor College of Medicine, Houston, Texas, United States of America
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, United States of America
- * E-mail:
| |
Collapse
|
39
|
Murugan S, Shan J, Kühl SJ, Tata A, Pietilä I, Kühl M, Vainio SJ. WT1 and Sox11 regulate synergistically the promoter of the Wnt4 gene that encodes a critical signal for nephrogenesis. Exp Cell Res 2012; 318:1134-45. [DOI: 10.1016/j.yexcr.2012.03.008] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2011] [Revised: 03/07/2012] [Accepted: 03/10/2012] [Indexed: 01/19/2023]
|
40
|
Ma P, Lin S, Bartolomei MS, Schultz RM. Metastasis tumor antigen 2 (MTA2) is involved in proper imprinted expression of H19 and Peg3 during mouse preimplantation development. Biol Reprod 2010; 83:1027-35. [PMID: 20720167 DOI: 10.1095/biolreprod.110.086397] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
The epigenetic mechanisms involved in establishing and maintaining genomic imprinting are steadily being unmasked. The nucleosome remodeling and histone deacetylation (NuRD) complex is implicated in regulating DNA methylation and expression of the maternally expressed H19 gene in preimplantation mouse embryos. To dissect further the function of the NuRD complex in genomic imprinting, we employed an RNA interference (RNAi) strategy to deplete the NuRD complex component Metastasis Tumor Antigen 2 (MTA2). We found that Mta2 is the only zygotically expressed Mta gene prior to the blastocyst stage, and that RNAi-mediated knockdown of Mta2 transcript leads to biallelic H19 expression and loss of DNA methylation in the differentially methylated region in blastocysts. In addition, biallelic expression of the paternally expressed Peg3 gene, but not Snrpn, is also observed in blastocysts following Mta2 knockdown. Loss of MTA2 protein does not result in a decrease in abundance of other NuRD components, including methyl-binding-CpG-binding domain protein 3 (MBD3), histone deacetylases 1 and 2 (HDACs 1 and 2), and chromodomain helicase DNA-binding protein 4 (CHD4). Taken together, our results support a role for MTA2 within the NuRD complex in genomic imprinting.
Collapse
Affiliation(s)
- Pengpeng Ma
- Department of Biology, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6018, USA
| | | | | | | |
Collapse
|
41
|
Fu J, Qin L, He T, Qin J, Hong J, Wong J, Liao L, Xu J. The TWIST/Mi2/NuRD protein complex and its essential role in cancer metastasis. Cell Res 2010; 21:275-89. [PMID: 20714342 DOI: 10.1038/cr.2010.118] [Citation(s) in RCA: 190] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The epithelial-mesenchymal transition (EMT) converts epithelial tumor cells into invasive and metastatic cancer cells, leading to mortality in cancer patients. Although TWIST is a master regulator of EMT and metastasis for breast and other cancers, the mechanisms responsible for TWIST-mediated gene transcription remain unknown. In this study, purification and characterization of the TWIST protein complex revealed that TWIST interacts with several components of the Mi2/nucleosome remodeling and deacetylase (Mi2/NuRD) complex, MTA2, RbAp46, Mi2 and HDAC2, and recruits them to the proximal regions of the E-cadherin promoter for transcriptional repression. Depletion of these TWIST complex components from cancer cell lines that depend on TWIST for metastasis efficiently suppresses cell migration and invasion in culture and lung metastasis in mice. These findings not only provide novel mechanistic and functional links between TWIST and the Mi2/NuRD complex but also establish new essential roles for the components of Mi2/NuRD complex in cancer metastasis.
Collapse
Affiliation(s)
- Junjiang Fu
- Department of Molecular and Cellular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | | | | | | | | | | | | | | |
Collapse
|
42
|
Kumar R, Balasenthil S, Manavathi B, Rayala SK, Pakala SB. Metastasis-associated protein 1 and its short form variant stimulates Wnt1 transcription through promoting its derepression from Six3 corepressor. Cancer Res 2010; 70:6649-58. [PMID: 20682799 PMCID: PMC3711655 DOI: 10.1158/0008-5472.can-10-0909] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Although Wnt1 downstream signaling components have been well studied and activated in human cancer, the pathways that regulate Wnt1 itself have not been explored in depth. Here, we provide gain-of-function, loss-of function, and molecular evidence supporting functional interactions between metastasis-associated protein 1 short-form (MTA1s), metastasis-associated protein 1 (MTA1), and Wnt1 signaling components during mammary gland development and tumorigenesis. Using multiple model systems involving overexpression or knockdown of MTA1s or MTA1, we discovered that MTA1s and MTA1 hyperactivate the Wnt1 pathway due to increased expression of Wnt1 transcription. MTA1s and MTA1 physically interact with Six3 chromatin, a protein product of which is a direct histone deacetylase inhibitor-dependent repressor of Wnt1 transcription. Deletion of the MTA1s and MTA1 allele in murine embryonic fibroblasts resulted in the upregulation of Six3 and downregulation of Wnt signaling. In addition, mammary glands from the MTA1s/MTA1(-/-) mice exhibited increased recruitment of Six3 corepressor complex to the Wnt1 promoter and inhibition of Wnt1 pathway in mammary glands. These findings identify MTA1s and MTA1 as important upstream modifiers of the Wnt1 transcription, and consequently its functions, by directly inhibiting the transcription of Six3, allowing derepression of Wnt1 transcription.
Collapse
MESH Headings
- Animals
- Breast Neoplasms/genetics
- Breast Neoplasms/metabolism
- Cell Line, Tumor
- Chromatin/genetics
- Chromatin/metabolism
- Eye Proteins/biosynthesis
- Eye Proteins/genetics
- Eye Proteins/metabolism
- Female
- Gene Expression Regulation
- Gene Expression Regulation, Neoplastic
- Histone Deacetylases/genetics
- Histone Deacetylases/metabolism
- Homeodomain Proteins/biosynthesis
- Homeodomain Proteins/genetics
- Homeodomain Proteins/metabolism
- Humans
- Mammary Glands, Animal/metabolism
- Mammary Glands, Animal/physiology
- Mice
- Mice, Knockout
- Mice, Transgenic
- Nerve Tissue Proteins/biosynthesis
- Nerve Tissue Proteins/genetics
- Nerve Tissue Proteins/metabolism
- RNA, Messenger/biosynthesis
- RNA, Messenger/genetics
- RNA, Small Interfering/genetics
- Repressor Proteins/genetics
- Repressor Proteins/metabolism
- Signal Transduction
- Trans-Activators
- Transcription Factors/genetics
- Transcription Factors/metabolism
- Transcription, Genetic
- Wnt1 Protein/biosynthesis
- Wnt1 Protein/genetics
- beta Catenin/metabolism
- Homeobox Protein SIX3
Collapse
Affiliation(s)
- Rakesh Kumar
- Department of Biochemistry and Molecular Biology, The George Washington University Medical Center, Washington, District of Columbia 20037, USA.
| | | | | | | | | |
Collapse
|
43
|
Terhune SS, Moorman NJ, Cristea IM, Savaryn JP, Cuevas-Bennett C, Rout MP, Chait BT, Shenk T. Human cytomegalovirus UL29/28 protein interacts with components of the NuRD complex which promote accumulation of immediate-early RNA. PLoS Pathog 2010; 6:e1000965. [PMID: 20585571 PMCID: PMC2891856 DOI: 10.1371/journal.ppat.1000965] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2010] [Accepted: 05/25/2010] [Indexed: 12/31/2022] Open
Abstract
Histone deacetylation plays a pivotal role in regulating human cytomegalovirus gene expression. In this report, we have identified candidate HDAC1-interacting proteins in the context of infection by using a method for rapid immunoisolation of an epitope-tagged protein coupled with mass spectrometry. Putative interactors included multiple human cytomegalovirus-coded proteins. In particular, the interaction of pUL38 and pUL29/28 with HDAC1 was confirmed by reciprocal immunoprecipitations. HDAC1 is present in numerous protein complexes, including the HDAC1-containing nucleosome remodeling and deacetylase protein complex, NuRD. pUL38 and pUL29/28 associated with the MTA2 component of NuRD, and shRNA-mediated knockdown of the RBBP4 and CHD4 constituents of NuRD inhibited HCMV immediate-early RNA and viral DNA accumulation; together this argues that multiple components of the NuRD complex are needed for efficient HCMV replication. Consistent with a positive acting role for the NuRD elements during viral replication, the growth of pUL29/28- or pUL38-deficient viruses could not be rescued by treating infected cells with the deacetylase inhibitor, trichostatin A. Transient expression of pUL29/28 enhanced activity of the HCMV major immediate-early promoter in a reporter assay, regardless of pUL38 expression. Importantly, induction of the major immediate-early reporter activity by pUL29/28 required functional NuRD components, consistent with the inhibition of immediate-early RNA accumulation within infected cells after knockdown of RBBP4 and CHD4. We propose that pUL29/28 modifies the NuRD complex to stimulate the accumulation of immediate-early RNAs. A key event in regulating gene expression involves changes in the acetylation status of core histones. Regulation is accomplished by a balance between the addition of acetyl groups by histone acetyltransferase enzymes and removal of the moieties by deacetylases. These changes are essential in regulating cellular differentiation and proliferation and, likewise, disruption results in a variety of pathologies, including cancer. In addition, these key regulators are targeted by herpesviruses to ensure persistent infection during the life of the host. In the case of the herpesvirus human cytomegalovirus (HCMV), changes in histone acetylation have been implicated in the choice between latent and acute phases of infection. We have used a focused proteomics approach to identify proteins that are interacting with and regulating the histone deacetylase 1 (HDAC1) protein during acute cytomegalovirus infection. Our studies identified numerous cellular and viral proteins including HCMV pUL29/28. This protein bound to components of the nucleosome remodeling and deacetylase complex, NuRD, and functional NuRD components were necessary for HCMV gene expression and infection. Our study demonstrates a new tool for studying host-pathogen interactions as well as provides new insights into the complex regulation of HDAC1 during HCMV replication.
Collapse
Affiliation(s)
- Scott S. Terhune
- Department of Molecular Biology, Princeton University, Princeton, New Jersey, United States of America
- Department of Microbiology and Molecular Genetics & Biotechnology and Bioengineering Center, Medical College of Wisconsin, Milwaukee, Wisconsin, United States of America
| | - Nathaniel J. Moorman
- Department of Molecular Biology, Princeton University, Princeton, New Jersey, United States of America
| | - Ileana M. Cristea
- Department of Molecular Biology, Princeton University, Princeton, New Jersey, United States of America
- Laboratory for Mass Spectrometry and Gaseous Ion Chemistry, The Rockefeller University, New York, New York, United States of America
| | - John Paul Savaryn
- Department of Microbiology and Molecular Genetics & Biotechnology and Bioengineering Center, Medical College of Wisconsin, Milwaukee, Wisconsin, United States of America
| | - Christian Cuevas-Bennett
- Department of Molecular Biology, Princeton University, Princeton, New Jersey, United States of America
| | - Michael P. Rout
- Laboratory of Cellular and Structural Biology, The Rockefeller University, New York, New York, United States of America
| | - Brian T. Chait
- Laboratory for Mass Spectrometry and Gaseous Ion Chemistry, The Rockefeller University, New York, New York, United States of America
| | - Thomas Shenk
- Department of Molecular Biology, Princeton University, Princeton, New Jersey, United States of America
- * E-mail:
| |
Collapse
|
44
|
Mta3-NuRD complex is a master regulator for initiation of primitive hematopoiesis in vertebrate embryos. Blood 2009; 114:5464-72. [PMID: 19864643 DOI: 10.1182/blood-2009-06-227777] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Metastasis-associated antigens 1/2/3 (Mta1/2/3) are components of nucleosome remodeling and deacetylase (NuRD) complexes and have been found to play roles in embryonic development and homeostasis. However, their functions in primitive hematopoiesis are unknown. In this study, we demonstrate that knockdown of mta3 by antisense morpholinos abolishes primitive hematopoietic lineages and causes abnormal angiogenesis in zebrafish embryos. However, the expression of the pronephric duct and paraxial mesoderm markers is unaltered and the specification of angioblasts is unaffected in mta3 morphants. The results suggest that mta3 is specifically required for primitive hematopoiesis. Furthermore, inhibition of deacetylase activity with the inhibitors valproic acid (VPA) or trichostatin A (TSA) in zebrafish embryos completely blocks primitive hematopoiesis, resulting in hematopoietic defects almost identical to those seen in mta3 morphants. Importantly, overexpression of scl or scl and lmo2, 2 master genes for primitive hematopoiesis, is able to overturn effects of mta3 knockdown or VPA/TSA treatment; and overexpression of mta3, and human MBD3 or HDAC1, 2 other components of NuRD complex, enhances the expression of scl and lmo2 in the posterior lateral plate mesoderm during early primitive hematopoiesis. We conclude that Mta3-NuRD complex is essential for the initiation of primitive hematopoiesis. Thus, our findings provide new insight into the regulatory hierarchy of primitive hematopoiesis in vertebrates.
Collapse
|
45
|
Abstract
Coregulators (coactivators and corepressors) occupy the driving seat for actions of all nuclear receptors, and consequently, selective receptor modulator drugs. The potency and selectivity for subreactions of transcription reside in the coactivators, and thus, they are critically important for tissue-selective gene function. Each tissue has a "quantitative finger print" of coactivators based on its relative inherited concentrations of these molecules. When the cellular concentration of a coactivator is altered, genetic dysfunction usually leads to a pathologic outcome. For example, many cancers overexpress "growth coactivators." In this way, the cancer cell can hijack these coactivator molecules to drive proliferation and metastasis. The present review contains summaries of selective coactivators and corepressors that have been demonstrated to play important roles in the malignant process and emphasizes their importance for future therapeutic interventions.
Collapse
Affiliation(s)
- Bert W O'Malley
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, USA
| | | |
Collapse
|
46
|
Toh Y, Nicolson GL. The role of the MTA family and their encoded proteins in human cancers: molecular functions and clinical implications. Clin Exp Metastasis 2008; 26:215-27. [PMID: 19116762 DOI: 10.1007/s10585-008-9233-8] [Citation(s) in RCA: 164] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2008] [Accepted: 12/12/2008] [Indexed: 01/10/2023]
Abstract
MTA (metastasis-associated gene) is a newly discovered family of cancer progression-related genes and their encoded products. MTA1, the first gene found in this family, has been repeatedly reported to be overexpressed along with its protein product MTA1 in a wide range of human cancers. In addition, the expression of MTA1/MTA1 correlates with the clinicopathological properties (malignant properties) of human cancers. MTA proteins are transcriptional co-repressors that function in histone deacetylation and are involved in the NuRD complex, which contains nucleosome remodeling and histone deacetylating molecules. MTA1 expression correlates with tumor formation in the mammary gland. In addition, MTA1 converts breast cancer cells to a more aggressive phenotype by repression of the estrogen receptor (ER) alpha trans-activation function through deacetylation of the chromatin in the ER-responsive element of ER-responsive genes. Furthermore, MTA1 plays an essential role in c-MYC-mediated cell transformation. Another member of this family, MTA3, is induced by estrogen and represses the expression of the transcriptional repressor Snail, a master regulator of "epithelial to mesenchymal transitions", resulting in the expression of the cell adhesion molecule E-cadherin and maintenance of a differentiated, normal epithelial phenotype in breast cells. In addition, tumor suppressor p53 protein is deacetylated and inactivated by both MTA1 and MTA2, leading to inhibition of growth arrest and apoptosis. Moreover, a hypoxia-inducible factor-1alpha (HIF-1alpha) is also deacetylated and stabilized by MTA1, resulting in angiogenesis. Thus, MTA proteins, especially MTA1, represent a possible set of master co-regulatory molecules involved in the carcinogenesis and progression of various malignant tumors. MTA proteins are proposed to be important new tools for clinical application in cancer diagnosis and treatment.
Collapse
Affiliation(s)
- Yasushi Toh
- Department of Gastroenterological Surgery, National Kyushu Cancer Center, 3-1-1 Notame, Minami-ku, Fukuoka, Japan.
| | | |
Collapse
|
47
|
Negative regulation of the Wnt signal by MM-1 through inhibiting expression of the wnt4 gene. Exp Cell Res 2008; 314:1217-28. [PMID: 18281035 DOI: 10.1016/j.yexcr.2008.01.002] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2007] [Revised: 12/01/2007] [Accepted: 01/06/2008] [Indexed: 11/24/2022]
Abstract
We have reported that a novel c-Myc-binding protein, MM-1, repressed the E-box-dependent transcription activity of c-Myc through TIF1beta/KAP1, a transcriptional corepressor, and that the c-fms gene was a target gene involved in this pathway. We have also reported that a mutation of A157R in MM-1, which is often observed in patients with leukemia or lymphoma, abrogated all of the repressive activities of MM-1 toward c-Myc, indicating that MM-1 is a novel tumor suppressor. In this study, to further identify target genes of MM-1, DNA microarray analysis was carried out by comparing expression levels of genes in MM-1 knockdown and parental cells, and the wnt4 gene, a member of the Wnt-beta-catenin pathway, was identified as a target gene of MM-1. Increased expression level of the wnt4 gene, accumulation and translocation of beta-catenin to the cytoplasm and nucleus, and upregulation of TCF/Lef-1, a target protein of the Wnt-beta-catenin pathway, were found in MM-1 knockdown cells. Reporter assays using various deletion constructs of the wnt4 gene promoter showed that MM-1 recognized the region spanning -286 to -229 from a transcription start site, and MM-1 complex was found to bind to this region by chromatin immunoprecipitation and gel mobility shift assays. Furthermore, it was found that Egr-1 and MM-1 were bound to this region and that both proteins mutually down-regulate promoter activity of the wnt4 gene. Since the c-myc gene is the target gene of the Wnt-beta-catenin pathway, these findings suggest that MM-1 inhibits c-Myc by a dual mechanism.
Collapse
|
48
|
Manavathi B, Singh K, Kumar R. MTA family of coregulators in nuclear receptor biology and pathology. NUCLEAR RECEPTOR SIGNALING 2007; 5:e010. [PMID: 18174918 PMCID: PMC2121320 DOI: 10.1621/nrs.05010] [Citation(s) in RCA: 75] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2007] [Accepted: 10/09/2007] [Indexed: 01/16/2023]
Abstract
Nuclear receptors (NRs) rely on coregulators (coactivators and corepressors) to modulate the transcription of target genes. By interacting with nucleosome remodeling complexes, NR coactivators potentiate transcription, whereas corepressors inhibit transcription of the target genes. Metastasis-associated proteins (MTA) represent an emerging family of novel NR coregulators. In general, MTA family members form independent nucleosome remodeling and deacetylation (NuRD) complexes and repress the transcription of different genes by recruiting histone deacetylases onto their target genes. However, MTA1 also acts as a coactivator in a promoter-context dependent manner. Recent findings that repression of estrogen receptor transactivation functions by MTA1, MTA1s, and MTA2 and regulation of MTA3 by estrogen signaling have indicated the significance of these proteins in NR signaling. Here, we highlight the action of MTA proteins on NR signaling and their roles in pathophysiological conditions.
Collapse
Affiliation(s)
- Bramanandam Manavathi
- Department of Molecular and Cellular Oncology, The University of Texas M. D. Anderson Cancer Center, Houston, Texas, USA
| | | | | |
Collapse
|
49
|
Abstract
The Mi-2/nucleosome remodeling and deacetylase (NuRD) complex is an abundant deacetylase complex with a broad cellular and tissue distribution. It is unique in that it couples histone deacetylation and chromatin remodeling ATPase activities in the same complex. A decade of research has uncovered a number of interesting connections between Mi-2/NuRD and gene regulation. The subunit composition of the enzyme appears to vary with cell type and in response to physiologic signals within a tissue. Here, we review the known subunits of the complex, their connections to signaling networks, and their association with cancer. In addition, we propose a working model that integrates the known biochemical properties of the enzyme with emerging models on how chromatin structure and modification relate to gene activity.
Collapse
Affiliation(s)
- S A Denslow
- Laboratory of Molecular Carcinogenesis, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | | |
Collapse
|
50
|
Singh RR, Kumar R. MTA family of transcriptional metaregulators in mammary gland morphogenesis and breast cancer. J Mammary Gland Biol Neoplasia 2007; 12:115-25. [PMID: 17549610 DOI: 10.1007/s10911-007-9043-7] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Abstract
Since breast cancer and its associated metastasis are a global health problem and a major cause of mortality among women, research efforts to understand the development, morphogenesis, and functioning of the mammary gland are a high priority. Myriad signaling pathways, transcription factors, and associated transcriptional coregulators have been identified in both normal functioning and neoplastic transformation of the mammary gland. The discovery of the metastasis tumor antigen 1 (MTA1) gene, its overexpression in cancer and metastasis and its subsequent identification as an integral part of the chromatin remodeling complex heralded extensive research on its physiological role. Subsequent identification of additional gene family members, namely MTA1s, MTA2, and MTA3, and their functions in the cell has resulted in the establishment of the significance of the MTA family. The role of these proteins in modulating hormonal responses in normal mammary glands and in breast cancer has resulted in their identification as important molecular markers and potential therapeutic targets.
Collapse
MESH Headings
- Animals
- Breast Neoplasms/genetics
- Breast Neoplasms/metabolism
- Breast Neoplasms/pathology
- Gene Expression Regulation, Neoplastic
- Humans
- Mammary Glands, Animal/cytology
- Mammary Glands, Animal/growth & development
- Mammary Glands, Animal/metabolism
- Mammary Glands, Animal/pathology
- Mammary Glands, Human/cytology
- Mammary Glands, Human/growth & development
- Mammary Glands, Human/metabolism
- Mammary Glands, Human/pathology
- Morphogenesis
- Transcription, Genetic/genetics
Collapse
Affiliation(s)
- Rajesh R Singh
- Molecular and Cellular Oncology, The University of Texas, M.D. Anderson Cancer Center, Houston, TX 77030, USA
| | | |
Collapse
|