1
|
Xin DE, Liao Y, Rao R, Ogurek S, Sengupta S, Xin M, Bayat AE, Seibel WL, Graham RT, Koschmann C, Lu QR. Chaetocin-mediated SUV39H1 inhibition targets stemness and oncogenic networks of diffuse midline gliomas and synergizes with ONC201. Neuro Oncol 2024; 26:735-748. [PMID: 38011799 PMCID: PMC10995509 DOI: 10.1093/neuonc/noad222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Indexed: 11/29/2023] Open
Abstract
BACKGROUND Diffuse intrinsic pontine gliomas (DIPG/DMG) are devastating pediatric brain tumors with extraordinarily limited treatment options and uniformly fatal prognosis. Histone H3K27M mutation is a common recurrent alteration in DIPG and disrupts epigenetic regulation. We hypothesize that genome-wide H3K27M-induced epigenetic dysregulation makes tumors vulnerable to epigenetic targeting. METHODS We performed a screen of compounds targeting epigenetic enzymes to identify potential inhibitors for the growth of patient-derived DIPG cells. We further carried out transcriptomic and genomic landscape profiling including RNA-seq and CUT&RUN-seq as well as shRNA-mediated knockdown to assess the effects of chaetocin and SUV39H1, a target of chaetocin, on DIPG growth. RESULTS High-throughput small-molecule screening identified an epigenetic compound chaetocin as a potent blocker of DIPG cell growth. Chaetocin treatment selectively decreased proliferation and increased apoptosis of DIPG cells and significantly extended survival in DIPG xenograft models, while restoring H3K27me3 levels. Moreover, the loss of H3K9 methyltransferase SUV39H1 inhibited DIPG cell growth. Transcriptomic and epigenomic profiling indicated that SUV39H1 loss or inhibition led to the downregulation of stemness and oncogenic networks including growth factor receptor signaling and stemness-related programs; however, D2 dopamine receptor (DRD2) signaling adaptively underwent compensatory upregulation conferring resistance. Consistently, a combination of chaetocin treatment with a DRD2 antagonist ONC201 synergistically increased the antitumor efficacy. CONCLUSIONS Our studies reveal a therapeutic vulnerability of DIPG cells through targeting the SUV39H1-H3K9me3 pathway and compensatory signaling loops for treating this devastating disease. Combining SUV39H1-targeting chaetocin with other agents such as ONC201 may offer a new strategy for effective DIPG treatment.
Collapse
Affiliation(s)
- Dazhuan Eric Xin
- Brain Tumor Center, Division of Experimental Hematology and Cancer Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
| | - Yunfei Liao
- Brain Tumor Center, Division of Experimental Hematology and Cancer Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
| | - Rohit Rao
- Brain Tumor Center, Division of Experimental Hematology and Cancer Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
| | - Sean Ogurek
- Brain Tumor Center, Division of Experimental Hematology and Cancer Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
| | - Soma Sengupta
- Department of Neurology and Rehabilitation Medicine, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Mei Xin
- Brain Tumor Center, Division of Experimental Hematology and Cancer Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
| | - Arman Esshaghi Bayat
- Brain Tumor Center, Division of Experimental Hematology and Cancer Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
| | - William L Seibel
- Brain Tumor Center, Division of Experimental Hematology and Cancer Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
| | - Richard T Graham
- Brain Tumor Center, Division of Experimental Hematology and Cancer Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
- Department of Pediatrics, University of Cincinnati and Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
| | - Carl Koschmann
- Department of Pediatrics, Division of Pediatric Hematology-Oncology, University of Michigan School of Medicine, Ann Arbor, Michigan, USA
| | - Q Richard Lu
- Brain Tumor Center, Division of Experimental Hematology and Cancer Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
- Department of Pediatrics, University of Cincinnati and Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
| |
Collapse
|
2
|
Wan X, Zhao S, Dai Y, Zhang J, Shen Y, Gong L, Le Q. WNT16b promotes the proliferation and self-renewal of human limbal epithelial stem/progenitor cells via activating the calcium/calcineurin A/NFATC2 pathway. Cell Prolif 2023; 56:e13460. [PMID: 36974338 PMCID: PMC10542615 DOI: 10.1111/cpr.13460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 03/06/2023] [Accepted: 03/15/2023] [Indexed: 03/29/2023] Open
Abstract
Our previous finding revealed that WNT16b promoted the proliferation of human limbal epithelial stem cells (hLESCs) through a β-catenin independent pathway. Here, we aimed to explore its underlying molecular mechanism and evaluate its potential in the treatment of limbal stem cell deficiency (LSCD). Based on the findings of mRNA-sequencing, the expression of key molecules in WNT/calcineurin A/NFATC2 signalling pathway was investigated in WNT16b-co-incubated hLESCs and control hLESCs. An epithelial wound healing model was established on Wnt16b-KO mice to confirm the regulatory effect of WNT16b in vivo. The therapeutic potential of WNT16b-co-incubated hLESCs was also evaluated in mice with LSCD. Our findings showed that WNT16b bound with Frizzled7, promoted the release of Ca2+ and activated calcineurin A and NFATC2. With the translocation of NFATC2 into cell nucleus and the activation of HDAC3, WDR5 and GCN5L2, the expression of H3K4me3, H3K14ac and H3K27ac in the promoter regions of FoxM1 and c-MYC increased, which led to hLESC proliferation. The effect of the WNT16b/calcium/calcineurin A/NFATC2 pathway on LESC homeostasis maintenance and corneal epithelial repair was confirmed in Wnt16b-KO mice. Moreover, WNT16b-coincubated hLESCs could reconstruct a stable ocular surface and inhibit corneal neovascularization in mice with LSCD. In conclusion, WNT16b enhances the proliferation and maintains the stemness of hLESCs by activating the non-canonical calcium/calcineurin A/NFATC2 pathway in vitro and in vivo, and accelerates corneal epithelial wound healing.
Collapse
Affiliation(s)
- Xichen Wan
- Department of OphthalmologyEye, Ear, Nose and Throat Hospital of Fudan UniversityFudanChina
| | - Songjiao Zhao
- Department of Ophthalmology, Shanghai General HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Yiqin Dai
- Department of OphthalmologyEye, Ear, Nose and Throat Hospital of Fudan UniversityFudanChina
- Research CentreEye, Ear, Nose and Throat Hospital of Fudan UniversityFudanChina
| | - Jing Zhang
- Department of OphthalmologyEye, Ear, Nose and Throat Hospital of Fudan UniversityFudanChina
- Research CentreEye, Ear, Nose and Throat Hospital of Fudan UniversityFudanChina
| | - Yan Shen
- Department of OphthalmologyEye, Ear, Nose and Throat Hospital of Fudan UniversityFudanChina
| | - Lan Gong
- Department of OphthalmologyEye, Ear, Nose and Throat Hospital of Fudan UniversityFudanChina
- Myopia Key Laboratory of Ministry of HealthEye, Ear, Nose and Throat Hospital of Fudan UniversityFudanChina
| | - Qihua Le
- Department of OphthalmologyEye, Ear, Nose and Throat Hospital of Fudan UniversityFudanChina
- Research CentreEye, Ear, Nose and Throat Hospital of Fudan UniversityFudanChina
- Myopia Key Laboratory of Ministry of HealthEye, Ear, Nose and Throat Hospital of Fudan UniversityFudanChina
| |
Collapse
|
3
|
Zhang L, Liu HH, Yang F, Zhang ZY, Wu Y, Li F, Dang SP, Zhang ZY, Qian LL, Wang RX. Calcineurin/NFATc3 pathway mediates myocardial fibrosis in diabetes by impairing enhancer of zeste homolog 2 of cardiac fibroblasts. BMC Cardiovasc Disord 2023; 23:474. [PMID: 37735624 PMCID: PMC10512648 DOI: 10.1186/s12872-023-03492-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Accepted: 09/04/2023] [Indexed: 09/23/2023] Open
Abstract
BACKGROUND Diabetes is associated with myocardial fibrosis, while the underlying mechanisms remain elusive. The aim of this study is to investigate the underlying role of calcineurin/nuclear factor of activated T cell 3 (CaN/NFATc3) pathway and the Enhancer of zeste homolog 2 (EZH2) in diabetes-related myocardial fibrosis. METHODS Streptozotocin (STZ)-injected diabetic rats were randomized to two groups: the controlled glucose (Con) group and the diabetes mellitus (DM) group. Eight weeks later, transthoracic echocardiography was used for cardiac function evaluation, and myocardial fibrosis was visualized by Masson trichrome staining. The primary neonatal rat cardiac fibroblasts were cultured with high-glucose medium with or without cyclosporine A or GSK126. The expression of proteins involved in the pathway was examined by western blotting. The nuclear translocation of target proteins was assessed by immunofluorescence. RESULTS The results indicated that high glucose treatment increased the expression of CaN, NFATc3, EZH2 and trimethylates lysine 27 on histone 3 (H3K27me3) in vitro and in vivo. The inhibition of the CaN/NFATc3 pathway alleviated myocardial fibrosis. Notably, inhibition of CaN can inhibit the nuclear translocation of NFATc3, and the expression of EZH2 and H3K27me3 protein induced by high glucose. Moreover, treatment with GSK126 also ameliorated myocardial fibrosis. CONCLUSION Diabetes can possibly promote myocardial fibrosis by activating of CaN/NFATc3/EZH2 pathway.
Collapse
Affiliation(s)
- Lei Zhang
- Department of Cardiology, Wuxi People's Hospital Affiliated to Nanjing Medical University, Wuxi, 214023, China
| | - Huan-Huan Liu
- Wuxi School of Medicine, Jiangnan University, Wuxi, 214122, China
| | - Fan Yang
- Department of Cardiology, Wuxi People's Hospital Affiliated to Nanjing Medical University, Wuxi, 214023, China
| | - Zhi-Yuan Zhang
- Department of Cardiology, Wuxi People's Hospital Affiliated to Nanjing Medical University, Wuxi, 214023, China
| | - Ying Wu
- Department of Cardiology, Wuxi People's Hospital Affiliated to Nanjing Medical University, Wuxi, 214023, China
| | - Feng Li
- Department of Cardiology, Wuxi People's Hospital Affiliated to Nanjing Medical University, Wuxi, 214023, China
| | - Shi-Peng Dang
- Department of Cardiology, Wuxi People's Hospital Affiliated to Nanjing Medical University, Wuxi, 214023, China
| | - Zhen-Ye Zhang
- Department of Cardiology, Wuxi People's Hospital Affiliated to Nanjing Medical University, Wuxi, 214023, China
| | - Ling-Ling Qian
- Department of Cardiology, Wuxi People's Hospital Affiliated to Nanjing Medical University, Wuxi, 214023, China.
| | - Ru-Xing Wang
- Department of Cardiology, Wuxi People's Hospital Affiliated to Nanjing Medical University, Wuxi, 214023, China.
- Wuxi School of Medicine, Jiangnan University, Wuxi, 214122, China.
| |
Collapse
|
4
|
Wang W, Ren S, Lu Y, Chen X, Qu J, Ma X, Deng Q, Hu Z, Jin Y, Zhou Z, Ge W, Zhu Y, Yang N, Li Q, Pu J, Chen G, Ye C, Wang H, Zhao X, Liu Z, Zhu S. Inhibition of Syk promotes chemical reprogramming of fibroblasts via metabolic rewiring and H 2 S production. EMBO J 2021; 40:e106771. [PMID: 33909912 DOI: 10.15252/embj.2020106771] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 03/14/2021] [Accepted: 03/17/2021] [Indexed: 01/10/2023] Open
Abstract
Chemical compounds have recently been introduced as alternative and non-integrating inducers of pluripotent stem cell fate. However, chemical reprogramming is hampered by low efficiency and the molecular mechanisms remain poorly characterized. Here, we show that inhibition of spleen tyrosine kinase (Syk) by R406 significantly promotes mouse chemical reprogramming. Mechanistically, R406 alleviates Syk / calcineurin (Cn) / nuclear factor of activated T cells (NFAT) signaling-mediated suppression of glycine, serine, and threonine metabolic genes and dependent metabolites. Syk inhibition upregulates glycine level and downstream transsulfuration cysteine biosynthesis, promoting cysteine metabolism and cellular hydrogen sulfide (H2 S) production. This metabolic rewiring decreased oxidative phosphorylation and ROS levels, enhancing chemical reprogramming. In sum, our study identifies Syk-Cn-NFAT signaling axis as a new barrier of chemical reprogramming and suggests metabolic rewiring and redox homeostasis as important opportunities for controlling cell fates.
Collapse
Affiliation(s)
- Weiyun Wang
- The MOE Key Laboratory of Biosystems Homeostasis & Protection and Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Shaofang Ren
- State Key Laboratory of Organ Failure Research, Department of Developmental Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Yunkun Lu
- The MOE Key Laboratory of Biosystems Homeostasis & Protection and Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Xi Chen
- The MOE Key Laboratory of Biosystems Homeostasis & Protection and Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Juanjuan Qu
- College of Life Science, Shanxi University, Taiyuan, China
| | - Xiaojie Ma
- The MOE Key Laboratory of Biosystems Homeostasis & Protection and Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Qian Deng
- The MOE Key Laboratory of Biosystems Homeostasis & Protection and Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Zhensheng Hu
- The MOE Key Laboratory of Biosystems Homeostasis & Protection and Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Yan Jin
- The MOE Key Laboratory of Biosystems Homeostasis & Protection and Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Ziyu Zhou
- The MOE Key Laboratory of Biosystems Homeostasis & Protection and Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Wenyan Ge
- The MOE Key Laboratory of Biosystems Homeostasis & Protection and Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Yibing Zhu
- The MOE Key Laboratory of Biosystems Homeostasis & Protection and Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Nannan Yang
- Prenatal Diagnosis Center, Hangzhou Women's Hospital, Hangzhou, China
| | - Qin Li
- The MOE Key Laboratory of Biosystems Homeostasis & Protection and Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Jiaqi Pu
- The MOE Key Laboratory of Biosystems Homeostasis & Protection and Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Guo Chen
- The MOE Key Laboratory of Biosystems Homeostasis & Protection and Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Cunqi Ye
- The MOE Key Laboratory of Biosystems Homeostasis & Protection and Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Hao Wang
- Prenatal Diagnosis Center, Hangzhou Women's Hospital, Hangzhou, China.,Department of Cell Biology and Medical Genetics, School of Medicine, Zhejiang University, Hangzhou, China
| | - Xiaoyang Zhao
- State Key Laboratory of Organ Failure Research, Department of Developmental Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Zhiqiang Liu
- College of Life Science, Shanxi University, Taiyuan, China
| | - Saiyong Zhu
- The MOE Key Laboratory of Biosystems Homeostasis & Protection and Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, Life Sciences Institute, Zhejiang University, Hangzhou, China.,Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| |
Collapse
|
5
|
Chen H, Zeng Y, Shao M, Zhao H, Fang Z, Gu J, Liao B, Jin Y. Calcineurin A gamma and NFATc3/SRPX2 axis contribute to human embryonic stem cell differentiation. J Cell Physiol 2021; 236:5698-5714. [PMID: 33393109 DOI: 10.1002/jcp.30255] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 12/09/2020] [Accepted: 12/21/2020] [Indexed: 12/29/2022]
Abstract
Our understanding of signaling pathways regulating the cell fate of human embryonic stem cells (hESCs) is limited. Calcineurin-NFAT signaling is associated with a wide range of biological processes and diseases. However, its role in controlling hESC fate remains unclear. Here, we report that calcineurin A gamma and the NFATc3/SRPX2 axis control the expression of lineage and epithelial-mesenchymal transition (EMT) markers in hESCs. Knockdown of PPP3CC, the gene encoding calcineurin A gamma, or NFATC3, downregulates certain markers both at the self-renewal state and during differentiation of hESCs. Furthermore, NFATc3 interacts with c-JUN and regulates the expression of SRPX2, the gene encoding a secreted glycoprotein known as a ligand of uPAR. We show that SRPX2 is a downstream target of NFATc3. Both SRPX2 and uPAR participate in controlling expression of lineage and EMT markers. Importantly, SRPX2 knockdown diminishes the upregulation of multiple lineage and EMT markers induced by co-overexpression of NFATc3 and c-JUN in hESCs. Together, this study uncovers a previously unknown role of calcineurin A gamma and the NFATc3/SRPX2 axis in modulating the fate determination of hESCs.
Collapse
Affiliation(s)
- Hao Chen
- CAS Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, CAS Center for Excellence in Molecular Cell Science, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Yanwu Zeng
- Shanghai Key Laboratory of Reproductive Medicine, Department of Histoembryology, Genetics and Developmental Biology, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Min Shao
- CAS Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, CAS Center for Excellence in Molecular Cell Science, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Hanzhi Zhao
- Shanghai Key Laboratory of Reproductive Medicine, Department of Histoembryology, Genetics and Developmental Biology, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Zhuoqing Fang
- CAS Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, CAS Center for Excellence in Molecular Cell Science, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Junjie Gu
- Shanghai Key Laboratory of Reproductive Medicine, Department of Histoembryology, Genetics and Developmental Biology, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Bing Liao
- Shanghai Key Laboratory of Reproductive Medicine, Department of Histoembryology, Genetics and Developmental Biology, Shanghai JiaoTong University School of Medicine, Shanghai, China.,Basic Clinical Research Center, Renji Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Ying Jin
- CAS Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, CAS Center for Excellence in Molecular Cell Science, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China.,Shanghai Key Laboratory of Reproductive Medicine, Department of Histoembryology, Genetics and Developmental Biology, Shanghai JiaoTong University School of Medicine, Shanghai, China.,Basic Clinical Research Center, Renji Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| |
Collapse
|
6
|
Liu N, Qi M, Li K, Zeng W, Li J, Yin M, Liu H, Chen X, Zhang J, Peng C. CD147 regulates melanoma metastasis via the NFAT1-MMP-9 pathway. Pigment Cell Melanoma Res 2020; 33:731-743. [PMID: 32339381 DOI: 10.1111/pcmr.12886] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 04/11/2020] [Accepted: 04/22/2020] [Indexed: 12/20/2022]
Abstract
Although accumulating evidence had revealed that NFAT1 has oncogenic characteristics, the role of this molecule in melanoma cells remains unclear. Previous studies proved that CD147 plays a crucial function in melanoma cell metastasis and invasion through matrix metalloproteinase 9 (MMP-9) expression; however, the details of how CD147 regulates MMP-9 expression remain elusive. In this study, we demonstrated that CD147 and NFAT1 are overexpressed in the tissues of patients with primary and metastatic melanoma, which has shown a positive correlation. Further, we observed that CD147 regulates NFAT1 activation through the [Ca2+ ]i-calcineurin pathway. Knockdown of NFAT1 significantly suppresses melanoma metastasis, and we demonstrated that CD147 affects melanoma metastasis in an NFAT1-dependent manner. Moreover, we verified that NFAT1 directly binds to MMP-9 promoter. Inhibition of CD147 expression significantly abrogates MMP-9 promoter luciferase gene reporter activity as well as NFAT1 association with MMP-9 promoter. Taken together, this study demonstrated that CD147 affects MMP-9 expression through regulating NFAT1 activity and provided a novel mechanism by which NFAT1 contributes to melanoma metastasis through the regulation of MMP-9.
Collapse
Affiliation(s)
- Nian Liu
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Changsha, China.,Human Engineering Research Center of Skin Health and Disease, Changsha, China
| | - Min Qi
- Department of Plastic and Cosmetic Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Keke Li
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Changsha, China.,Human Engineering Research Center of Skin Health and Disease, Changsha, China
| | - Weiqi Zeng
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Changsha, China.,Human Engineering Research Center of Skin Health and Disease, Changsha, China
| | - Jiaoduan Li
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Changsha, China.,Human Engineering Research Center of Skin Health and Disease, Changsha, China
| | - Mingzhu Yin
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Changsha, China.,Human Engineering Research Center of Skin Health and Disease, Changsha, China
| | - Hong Liu
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Changsha, China.,Human Engineering Research Center of Skin Health and Disease, Changsha, China
| | - Xiang Chen
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Changsha, China.,Human Engineering Research Center of Skin Health and Disease, Changsha, China
| | - JiangLin Zhang
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Changsha, China.,Human Engineering Research Center of Skin Health and Disease, Changsha, China
| | - Cong Peng
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,Hunan Key Laboratory of Skin Cancer and Psoriasis, Changsha, China.,Human Engineering Research Center of Skin Health and Disease, Changsha, China
| |
Collapse
|
7
|
Role of the calcium toolkit in cancer stem cells. Cell Calcium 2019; 80:141-151. [PMID: 31103948 DOI: 10.1016/j.ceca.2019.05.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 05/07/2019] [Accepted: 05/07/2019] [Indexed: 12/11/2022]
Abstract
Cancer stem cells are a subpopulation of tumor cells that proliferate, self-renew and produce more differentiated tumoral cells building-up the tumor. Responsible for the sustained growth of malignant tumors, cancer stem cells are proposed to play significant roles in cancer resistance to standard treatment and in tumor recurrence. Among the mechanisms dysregulated in neoplasms, those related to Ca2+ play significant roles in various aspects of cancers. Ca2+ is a ubiquitous second messenger whose fluctuations of its intracellular concentrations are tightly controlled by channels, pumps, exchangers and Ca2+ binding proteins. These components support the genesis of Ca2+ signals with specific spatio-temporal characteristics that define the cell response. Being involved in the coupling of extracellular events with intracellular responses, the Ca2+ toolkit is often hijacked by cancer cells to promote notably their proliferation and invasion. Growing evidence obtained during the last decade pointed to a role of Ca2+ handling and mishandling in cancer stem cells. In this review, after a general overview of the concept of cancer stem cells we analyse and discuss the studies and current knowledge regarding the complex roles of Ca2+ toolkit and signaling in these cells. We highlight that numbers of Ca2+ signaling actors promote cancer stem cell state and are associated with cell resistance to current cancer treatments and thus may represent promising targets for potential clinical applications.
Collapse
|
8
|
Cai Q, Niu H, Zhang B, Shi X, Liao M, Chen Z, Mo D, He Z, Chen Y, Cong P. Effect of EZH2 knockdown on preimplantation development of porcine parthenogenetic embryos. Theriogenology 2019; 132:95-105. [PMID: 31004879 DOI: 10.1016/j.theriogenology.2019.04.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 03/11/2019] [Accepted: 04/06/2019] [Indexed: 10/27/2022]
Abstract
The EZH2 protein endows the polycomb repressive complex 2 (PRC2) with histone lysine methyltransferase activity that is associated with transcriptional repression. Recent investigations have documented crucial roles for EZH2 in mediating X-inactivation, stem cell pluripotency and cancer metastasis. However, there is little evidence demonstrating the maternal effect of EZH2 on porcine preimplantation development. Here, we took parthenogenetic activation embryos to eliminate the confounding paternal influence. We showed that the dynamic expression of EZH2 during early development was accompanied by changes in H3K27me3 levels. Depletion of EZH2 in MII oocytes by small interfering RNA not only impaired embryonic development at the blastocyst stage (P < 0.05), but also disrupted the equilibrium of H3K4me3 and H3K27me3 in the embryo. Interestingly, the expression of TET1, a member of Ten-Eleven Translocation gene family for converting 5-methylcytosine (5 mC) to 5-hydroxymethylcytosine (5hmC), was decreased after EZH2 knockdown, in contrast to the increase of the other two members, TET2 and TET3 (P < 0.05). These results indicate a correlation between histone methylation and DNA methylation, and between EZH2 and TET1. Along with the downregulation of TET1, the expression of the pluripotency gene NANOG was decreased (P < 0.05), which is consistent with a previous finding in mouse ES cells. Meanwhile, the abundance of OCT4 and SOX2 were also down-regulated. Moreover, EZH2 knockdown reduced the capacity of cells in the blastocysts to resist apoptosis. Taken together, our data suggest that EZH2 is integral to the developmental program of porcine parthenogenetic embryos and exerts its function by regulating pluripotency, differentiation and apoptosis.
Collapse
Affiliation(s)
- Qingqing Cai
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China
| | - Huiran Niu
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China
| | - Bingyue Zhang
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China
| | - Xuan Shi
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China
| | - Mengqin Liao
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China
| | - Zihao Chen
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China
| | - Delin Mo
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China
| | - Zuyong He
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China
| | - Yaosheng Chen
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China
| | - Peiqing Cong
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China.
| |
Collapse
|
9
|
Potassium as a pluripotency-associated element identified through inorganic element profiling in human pluripotent stem cells. Sci Rep 2017; 7:5005. [PMID: 28694442 PMCID: PMC5504050 DOI: 10.1038/s41598-017-05117-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Accepted: 05/24/2017] [Indexed: 12/20/2022] Open
Abstract
Despite their well-known function in maintaining normal cell physiology, how inorganic elements are relevant to cellular pluripotency and differentiation in human pluripotent stem cells (hPSCs) has yet to be systematically explored. Using total reflection X-ray fluorescence (TXRF) spectrometry and inductively coupled plasma mass spectrometry (ICP-MS), we analyzed the inorganic components of human cells with isogenic backgrounds in distinct states of cellular pluripotency. The elemental profiles revealed that the potassium content of human cells significantly differs when their cellular pluripotency changes. Pharmacological treatment that alters cell membrane permeability to potassium affected the maintenance and establishment of cellular pluripotency via multiple mechanisms in bona fide hPSCs and reprogrammed cells. Collectively, we report that potassium is a pluripotency-associated inorganic element in human cells and provide novel insights into the manipulation of cellular pluripotency in hPSCs by regulating intracellular potassium.
Collapse
|
10
|
Ashwini A, Naganur SS, Smitha B, Sheshadri P, Prasanna J, Kumar A. Cyclosporine A-Mediated IL-6 Expression Promotes Neural Induction in Pluripotent Stem Cells. Mol Neurobiol 2017. [PMID: 28623616 DOI: 10.1007/s12035-017-0633-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Differentiation of pluripotent stem cells (PSCs) to neural lineages has gathered huge attention in both basic research and regenerative medicine. The major hurdle lies in the efficiency of differentiation and identification of small molecules that facilitate neurogenesis would partly circumvent this limitation. The small molecule Cyclosporine A (CsA), a commonly used immunosuppressive drug, has been shown to enhance in vivo neurogenesis. To extend the information to in vitro neurogenesis, we examined the effect of CsA on neural differentiation of PSCs. We found CsA to increase the expression of neural progenitor genes during early neural differentiation. Gene silencing approach revealed CsA-mediated neural induction to be dependent on blocking the Ca2+-activated phosphatase calcineurin (Cn) signaling. Similar observation with FK506, an independent inhibitor of Cn, further strengthened the necessity of blocking Cn for enhanced neurogenesis. Surprisingly, mechanistic insight revealed Cn-inhibition dependent upregulation of IL-6 protein to be necessary for CsA-mediated neurogenesis. Together, these findings provide a comprehensive understanding of the role of CsA in neurogenesis, thus suggesting a method for obtaining large numbers of neural progenitors from PSCs for possible transplantation.
Collapse
Affiliation(s)
- Ashwathnarayan Ashwini
- School of Regenerative Medicine, Manipal University, Allalasandra, GKVK post, Yelahanka, Bangalore, 560065, India
| | - Sushma S Naganur
- School of Regenerative Medicine, Manipal University, Allalasandra, GKVK post, Yelahanka, Bangalore, 560065, India
| | - Bhaskar Smitha
- School of Regenerative Medicine, Manipal University, Allalasandra, GKVK post, Yelahanka, Bangalore, 560065, India
| | - Preethi Sheshadri
- School of Regenerative Medicine, Manipal University, Allalasandra, GKVK post, Yelahanka, Bangalore, 560065, India
| | - Jyothi Prasanna
- School of Regenerative Medicine, Manipal University, Allalasandra, GKVK post, Yelahanka, Bangalore, 560065, India
| | - Anujith Kumar
- School of Regenerative Medicine, Manipal University, Allalasandra, GKVK post, Yelahanka, Bangalore, 560065, India.
| |
Collapse
|