1
|
Zhang N, Nao J, Zhang S, Dong X. Novel insights into the activating transcription factor 4 in Alzheimer's disease and associated aging-related diseases: Mechanisms and therapeutic implications. Front Neuroendocrinol 2024:101144. [PMID: 38797197 DOI: 10.1016/j.yfrne.2024.101144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 05/16/2024] [Accepted: 05/22/2024] [Indexed: 05/29/2024]
Abstract
Ageing is inherent to all human beings, most mechanistic explanations of ageing results from the combined effects of various physiological and pathological processes. Additionally, aging pivotally contributes to several chronic diseases. Activating transcription factor 4 (ATF4), a member of the ATF/cAMP response element-binding protein family, has recently emerged as a pivotal player owing to its indispensable role in the pathophysiological processes of Alzheimer's disease and aging-related diseases. Moreover, ATF4 is integral to numerous biological processes. Therefore, this article aims to comprehensively review relevant research on the role of ATF4 in the onset and progression of aging-related diseases, elucidating its potential mechanisms and therapeutic approaches. Our objective is to furnish scientific evidence for the early identification of risk factors in aging-related diseases and pave the way for new research directions for their treatment. By elucidating the signaling pathway network of ATF4 in aging-related diseases, we aspire to gain a profound understanding of the molecular and cellular mechanisms, offering novel strategies for addressing aging and developing related therapeutics.
Collapse
Affiliation(s)
- Nan Zhang
- Department of Neurology, the Seventh Clinical College of China Medical University, No. 24 Central Street, Xinfu District, Fushun 113000, Liaoning, China.
| | - Jianfei Nao
- Department of Neurology, Shengjing Hospital of China Medical University, No. 36 Sanhao Street, Heping District, Shenyang 110000, Liaoning, China.
| | - Shun Zhang
- Department of Neurology, Shengjing Hospital of China Medical University, No. 36 Sanhao Street, Heping District, Shenyang 110000, Liaoning, China.
| | - Xiaoyu Dong
- Department of Neurology, Shengjing Hospital of China Medical University, No. 36 Sanhao Street, Heping District, Shenyang 110000, Liaoning, China.
| |
Collapse
|
2
|
Miyazaki-Anzai S, Masuda M, Keenan AL, Shiozaki Y, Miranda JG, Miyazaki M. Activation of the IKK2/NF-κB pathway in VSMCs inhibits calcified vascular stiffness in CKD. JCI Insight 2024; 9:e174977. [PMID: 38470493 PMCID: PMC11128211 DOI: 10.1172/jci.insight.174977] [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: 08/25/2023] [Accepted: 02/29/2024] [Indexed: 03/13/2024] Open
Abstract
IKK2/NF-κB pathway-mediated inflammation in vascular smooth muscle cells (VSMCs) has been proposed to be an etiologic factor in medial calcification and stiffness. However, the role of the IKK2/NF-κB pathway in medial calcification remains to be elucidated. In this study, we found that chronic kidney disease (CKD) induces inflammatory pathways through the local activation of the IKK2/NF-κB pathway in VMSCs associated with calcified vascular stiffness. Despite reducing the expression of inflammatory mediators, complete inhibition of the IKK2/NF-κB pathway in vitro and in vivo unexpectedly exacerbated vascular mineralization and stiffness. In contrast, activation of NF-κB by SMC-specific IκBα deficiency attenuated calcified vascular stiffness in CKD. Inhibition of the IKK2/NF-κB pathway induced cell death of VSMCs by reducing anti-cell death gene expression, whereas activation of NF-κB reduced CKD-dependent vascular cell death. In addition, increased calcification of extracellular vesicles through the inhibition of the IKK2/NF-κB pathway induced mineralization of VSMCs, which was significantly reduced by blocking cell death in vitro and in vivo. This study reveals that activation of the IKK2/NF-κB pathway in VSMCs plays a protective role in CKD-dependent calcified vascular stiffness by reducing the release of apoptotic calcifying extracellular vesicles.
Collapse
|
3
|
Behrens RT, Rajashekar JK, Bruce JW, Evans EL, Hansen AM, Salazar-Quiroz N, Simons LM, Ahlquist P, Hultquist JF, Kumar P, Sherer NM. Exploiting a rodent cell block for intrinsic resistance to HIV-1 gene expression in human T cells. mBio 2023; 14:e0042023. [PMID: 37676006 PMCID: PMC10653828 DOI: 10.1128/mbio.00420-23] [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: 04/06/2023] [Accepted: 07/13/2023] [Indexed: 09/08/2023] Open
Abstract
IMPORTANCE Unlike humans, mice are unable to support HIV-1 infection. This is due, in part, to a constellation of defined minor, species-specific differences in conserved host proteins needed for viral gene expression. Here, we used precision CRISPR/Cas9 gene editing to engineer a "mousified" version of one such host protein, cyclin T1 (CCNT1), in human T cells. CCNT1 is essential for efficient HIV-1 transcription, making it an intriguing target for gene-based inactivation of virus replication. We show that isogenic cell lines engineered to encode CCNT1 bearing a single mouse-informed amino acid change (tyrosine in place of cysteine at position 261) exhibit potent, durable, and broad-spectrum resistance to HIV-1 and other pathogenic lentiviruses, and with no discernible impact on host cell biology. These results provide proof of concept for targeting CCNT1 in the context of one or more functional HIV-1 cure strategies.
Collapse
Affiliation(s)
- Ryan T. Behrens
- McArdle Laboratory for Cancer Research and Carbone Cancer Center, University of Wisconsin-Madison, Madison, Wisconsin, USA
- Institute for Molecular Virology, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Jyothi Krishnaswamy Rajashekar
- Department of Internal Medicine, Section of Infectious Diseases, Yale University School of Medicine, New Haven, Connecticut, USA
| | - James W. Bruce
- McArdle Laboratory for Cancer Research and Carbone Cancer Center, University of Wisconsin-Madison, Madison, Wisconsin, USA
- Institute for Molecular Virology, University of Wisconsin-Madison, Madison, Wisconsin, USA
- Morgridge Institute for Research, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Edward L. Evans
- McArdle Laboratory for Cancer Research and Carbone Cancer Center, University of Wisconsin-Madison, Madison, Wisconsin, USA
- Institute for Molecular Virology, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Amelia M. Hansen
- McArdle Laboratory for Cancer Research and Carbone Cancer Center, University of Wisconsin-Madison, Madison, Wisconsin, USA
- Institute for Molecular Virology, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Natalia Salazar-Quiroz
- Department of Internal Medicine, Section of Infectious Diseases, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Lacy M. Simons
- Division of Infectious Diseases, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Paul Ahlquist
- McArdle Laboratory for Cancer Research and Carbone Cancer Center, University of Wisconsin-Madison, Madison, Wisconsin, USA
- Institute for Molecular Virology, University of Wisconsin-Madison, Madison, Wisconsin, USA
- Morgridge Institute for Research, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Judd F. Hultquist
- Division of Infectious Diseases, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Priti Kumar
- Department of Internal Medicine, Section of Infectious Diseases, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Nathan M. Sherer
- McArdle Laboratory for Cancer Research and Carbone Cancer Center, University of Wisconsin-Madison, Madison, Wisconsin, USA
- Institute for Molecular Virology, University of Wisconsin-Madison, Madison, Wisconsin, USA
| |
Collapse
|
4
|
Miyazaki-Anzai S, Masuda M, Keenan AL, Shiozaki Y, Miyazaki M. Activation of the IKK2-NFκB pathway in VSMCs inhibits calcified vascular stiffness in CKD by reducing the secretion of calcifying extracellular vesicles. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.07.11.548621. [PMID: 37502894 PMCID: PMC10370001 DOI: 10.1101/2023.07.11.548621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/29/2023]
Abstract
IKK2-NFκB pathway mediated-inflammation in vascular smooth muscle cells (VSMCs) has been proposed to be an etiologic factor in medial calcification and stiffness. However, the role of the IKK2-NFκB pathway in medial calcification remains to be elucidated. In this study, we found that CKD induces inflammatory pathways through the local activation of the IKK2-NFκB pathway in VMSCs associated with calcified vascular stiffness. Despite reducing the expression of inflammatory mediators, complete inhibition of the IKK2-NFκB pathway in vitro and in vivo unexpectedly exacerbated vascular mineralization and stiffness. In contrast, activation of NFκB by SMC-specific IκB deficiency attenuated calcified vascular stiffness in CKD. Inhibition of the IKK2-NFκB pathway induced apoptosis of VSMCs by reducing anti-apoptotic gene expression, whereas activation of NFκB reduced CKD-dependent vascular cell death. In addition, increased calcifying extracellular vesicles through the inhibition of the IKK2-NFκB pathway induced mineralization of VSMCs, which was significantly reduced by blocking cell death. This study reveals that activation of the IKK2-NFκB pathway in VSMCs plays a protective role in CKD-dependent calcified vascular stiffness by reducing the release of apoptotic calcifying extracellular vesicles.
Collapse
|
5
|
Zhang P, Brinton LT, Gharghabi M, Sher S, Williams K, Cannon M, Walker JS, Canfield D, Beaver L, Cempre CB, Phillips H, Chen X, Yan P, Lehman A, Scherle P, Wang M, Vaddi K, Baiocchi R, Wang R, Sampath D, Alinari L, Blachly JS, Lapalombella R. Targeting OXPHOS de novo purine synthesis as the nexus of FLT3 inhibitor-mediated synergistic antileukemic actions. SCIENCE ADVANCES 2022; 8:eabp9005. [PMID: 36112677 PMCID: PMC9481139 DOI: 10.1126/sciadv.abp9005] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Accepted: 07/28/2022] [Indexed: 05/09/2023]
Abstract
Using a genome-wide CRISPR screen, we identified CDK9, DHODH, and PRMT5 as synthetic lethal partners with gilteritinib treatment in fms-like tyrosine kinase 3 (FLT3)-internal tandem duplication (ITD) acute myeloid leukemia (AML) and genetically and pharmacologically validated their roles in gilteritinib sensitivity. The presence of FLT3-ITD is associated with an increase in anaerobic glycolysis, rendering leukemia cells highly sensitive to inhibition of glycolysis. Supportive of this, our data show the enrichment of single guide RNAs targeting 28 glycolysis-related genes upon gilteritinib treatment, suggesting that switching from glycolysis to oxidative phosphorylation (OXPHOS) may represent a metabolic adaption of AML in gilteritinib resistance. CDK9i/FLT3i, DHODHi/FLT3i, and PRMT5i/FLT3i pairs mechanistically converge on OXPHOS and purine biosynthesis blockade, implying that targeting the metabolic functions of these three genes and/or proteins may represent attractive strategies to sensitize AML to gilteritinib treatment. Our findings provide the basis for maximizing therapeutic impact of FLT3-ITD inhibitors and a rationale for a clinical trial of these novel combinations.
Collapse
Affiliation(s)
- Pu Zhang
- Division of Hematology, Department of Internal Medicine, The Ohio State University, Columbus, OH, USA
- College of Pharmacy, The Ohio State University, Columbus, OH, USA
| | - Lindsey T. Brinton
- Division of Hematology, Department of Internal Medicine, The Ohio State University, Columbus, OH, USA
| | - Mehdi Gharghabi
- Division of Hematology, Department of Internal Medicine, The Ohio State University, Columbus, OH, USA
- Department of Outcomes and Translational Sciences, College of Pharmacy, The Ohio State University, Columbus, OH 43210, USA
| | - Steven Sher
- Division of Hematology, Department of Internal Medicine, The Ohio State University, Columbus, OH, USA
| | - Katie Williams
- Division of Hematology, Department of Internal Medicine, The Ohio State University, Columbus, OH, USA
| | - Matthew Cannon
- Division of Hematology, Department of Internal Medicine, The Ohio State University, Columbus, OH, USA
| | - Janek S. Walker
- Division of Hematology, Department of Internal Medicine, The Ohio State University, Columbus, OH, USA
| | - Daniel Canfield
- Division of Hematology, Department of Internal Medicine, The Ohio State University, Columbus, OH, USA
| | - Larry Beaver
- Division of Hematology, Department of Internal Medicine, The Ohio State University, Columbus, OH, USA
| | - Casey B. Cempre
- Division of Hematology, Department of Internal Medicine, The Ohio State University, Columbus, OH, USA
| | - Hannah Phillips
- Division of Hematology, Department of Internal Medicine, The Ohio State University, Columbus, OH, USA
| | - Xuyong Chen
- Center for Childhood Cancer and Blood Diseases, Hematology/Oncology and BMT, Abigail Wexner Research Institute at Nationwide Children’s Hospital, The Ohio State University, Columbus, OH, USA
| | - Pearlly Yan
- Division of Hematology, Department of Internal Medicine, The Ohio State University, Columbus, OH, USA
| | - Amy Lehman
- Center for Biostatistics, The Ohio State University, Columbus, OH, USA
| | | | - Min Wang
- Prelude Therapeutics, Wilmington, DE, USA
| | - Kris Vaddi
- Prelude Therapeutics, Wilmington, DE, USA
| | - Robert Baiocchi
- Division of Hematology, Department of Internal Medicine, The Ohio State University, Columbus, OH, USA
| | - Ruoning Wang
- Center for Childhood Cancer and Blood Diseases, Hematology/Oncology and BMT, Abigail Wexner Research Institute at Nationwide Children’s Hospital, The Ohio State University, Columbus, OH, USA
| | - Deepa Sampath
- Division of Hematology, Department of Internal Medicine, The Ohio State University, Columbus, OH, USA
| | - Lapo Alinari
- Division of Hematology, Department of Internal Medicine, The Ohio State University, Columbus, OH, USA
| | - James S. Blachly
- Division of Hematology, Department of Internal Medicine, The Ohio State University, Columbus, OH, USA
- Department of Biomedical Informatics, The Ohio State University, Columbus, OH, USA
- Leukemia Research Program, The Ohio State University James Comprehensive Cancer Center, Columbus, OH, USA
| | - Rosa Lapalombella
- Division of Hematology, Department of Internal Medicine, The Ohio State University, Columbus, OH, USA
- College of Pharmacy, The Ohio State University, Columbus, OH, USA
- Leukemia Research Program, The Ohio State University James Comprehensive Cancer Center, Columbus, OH, USA
| |
Collapse
|
6
|
Rao Z, Zheng Y, Xu L, Wang Z, Zhou Y, Chen M, Dong N, Cai Z, Li F. Endoplasmic Reticulum Stress and Pathogenesis of Vascular Calcification. Front Cardiovasc Med 2022; 9:918056. [PMID: 35783850 PMCID: PMC9243238 DOI: 10.3389/fcvm.2022.918056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 05/30/2022] [Indexed: 12/05/2022] Open
Abstract
Vascular calcification (VC) is characterized by calcium phosphate deposition in blood vessel walls and is associated with many diseases, as well as increased cardiovascular morbidity and mortality. However, the molecular mechanisms underlying of VC development and pathogenesis are not fully understood, thus impeding the design of molecular-targeted therapy for VC. Recently, several studies have shown that endoplasmic reticulum (ER) stress can exacerbate VC. The ER is an intracellular membranous organelle involved in the synthesis, folding, maturation, and post-translational modification of secretory and transmembrane proteins. ER stress (ERS) occurs when unfolded/misfolded proteins accumulate after a disturbance in the ER environment. Therefore, downregulation of pathological ERS may attenuate VC. This review summarizes the relationship between ERS and VC, focusing on how ERS regulates the development of VC by promoting osteogenic transformation, inflammation, autophagy, and apoptosis, with particular interest in the molecular mechanisms occurring in various vascular cells. We also discuss, the therapeutic effects of ERS inhibition on the progress of diseases associated with VC are detailed.
Collapse
Affiliation(s)
- Zhenqi Rao
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yidan Zheng
- Basic Medical School, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Li Xu
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zihao Wang
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ying Zhou
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ming Chen
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Nianguo Dong
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhejun Cai
- Department of Cardiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Fei Li
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| |
Collapse
|
7
|
Ren SC, Mao N, Yi S, Ma X, Zou JQ, Tang X, Fan JM. Vascular Calcification in Chronic Kidney Disease: An Update and Perspective. Aging Dis 2022; 13:673-697. [PMID: 35656113 PMCID: PMC9116919 DOI: 10.14336/ad.2021.1024] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 10/24/2021] [Indexed: 12/13/2022] Open
Abstract
Chronic kidney disease is a devastating condition resulting from irreversible loss of nephron numbers and function and leading to end-stage renal disease and mineral disorders. Vascular calcification, an ectopic deposition of calcium-phosphate salts in blood vessel walls and heart valves, is an independent risk factor of cardiovascular morbidity and mortality in chronic kidney disease. Moreover, aging and related metabolic disorders are essential risk factors for chronic kidney disease and vascular calcification. Marked progress has been recently made in understanding and treating vascular calcification in chronic kidney disease. However, there is a paucity of systematic reviews summarizing this progress, and investigating unresolved issues is warranted. In this systematic review, we aimed to overview the underlying mechanisms of vascular calcification in chronic kidney diseases and discuss the impact of chronic kidney disease on the pathophysiology of vascular calcification. Additionally, we summarized potential clinical diagnostic biomarkers and therapeutic applications for vascular calcification with chronic kidney disease. This review may offer new insights into the pathogenesis, diagnosis, and therapeutic intervention of vascular calcification.
Collapse
Affiliation(s)
- Si-Chong Ren
- Chengdu Medical College, Chengdu, China.
- Department of Nephrology, First Affiliated Hospital of Chengdu Medical College, Chengdu, China.
- Center for Translational Medicine, Sichuan Academy of Traditional Chinese Medicine, Chengdu, China.
| | - Nan Mao
- Chengdu Medical College, Chengdu, China.
- Department of Nephrology, First Affiliated Hospital of Chengdu Medical College, Chengdu, China.
| | - Si Yi
- Chengdu Medical College, Chengdu, China.
- Clinical Research Center for Geriatrics of Sichuan Province, Chengdu, China.
| | - Xin Ma
- Chengdu Medical College, Chengdu, China.
- Department of Nephrology, First Affiliated Hospital of Chengdu Medical College, Chengdu, China.
| | - Jia-Qiong Zou
- Chengdu Medical College, Chengdu, China.
- Department of Nephrology, First Affiliated Hospital of Chengdu Medical College, Chengdu, China.
| | - Xiaoqiang Tang
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of Ministry of Education, State Key Laboratory of Biotherapy, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Jun-Ming Fan
- Chengdu Medical College, Chengdu, China.
- Clinical Research Center for Geriatrics of Sichuan Province, Chengdu, China.
| |
Collapse
|
8
|
Duan S, Chen X, Liu Y, Guo W, Liu W. Endoplasmic reticulum stress mediates parathyroid hormone-induced apoptosis in vascular smooth muscle cells. Ren Fail 2022; 44:126-136. [PMID: 35172689 PMCID: PMC8856047 DOI: 10.1080/0886022x.2022.2027248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Vascular calcification is one of the most common complications of chronic kidney disease (CKD), which is closely associated with increased mortality and morbidity rates of CKD patients. It has been reported that increased parathyroid hormone (PTH) aggravates vascular calcification in CKD patients. However, the direct role of PTH in vascular smooth muscle cells (VSMCs) is less elucidated. Here, we present evidence that PTH promotes apoptosis of VSMCs and endoplasmic reticulum (ER) stress participates in this process. Human aorta vascular smooth muscle cells (HASMCs) were treated with different concentrations of PTH for various time. HASMC apoptosis was detected by flow cytometry. Expression of phosphorylated (p)-PERK, CHOP, IRE1, p-JNK, and cleaved caspase 3 was determined by Western blotting. We found that PTH induced HASMC apoptosis and increased the expression of cleaved caspase 3. Furthermore, PTH activated PERK-CHOP and IRE1-JNK ER stress pathways. Either inhibition of JNK by SP600125 or CHOP by siRNA ameliorated PTH-induced apoptosis in HASMCs. We therefore suggest that ER stress participates in PTH-induced apoptosis of VSMCs, which may be a possible mechanism of PTH-promoted vascular calcification in CKD patients.
Collapse
Affiliation(s)
- Shuzhong Duan
- Department of Nephrology, Beijing Friendship Hospital, Faculty of Kidney Diseases, Capital Medical University, Beijing, China.,Department of Nephrology, Chengde Medical University Affiliated Hospital, Chengde, China
| | - Xinpan Chen
- Department of Nephrology, Beijing Friendship Hospital, Faculty of Kidney Diseases, Capital Medical University, Beijing, China
| | - Yingjie Liu
- Department of Nephrology, Beijing Friendship Hospital, Faculty of Kidney Diseases, Capital Medical University, Beijing, China
| | - Weikang Guo
- Department of Nephrology, Beijing Friendship Hospital, Faculty of Kidney Diseases, Capital Medical University, Beijing, China
| | - Wenhu Liu
- Department of Nephrology, Beijing Friendship Hospital, Faculty of Kidney Diseases, Capital Medical University, Beijing, China
| |
Collapse
|
9
|
Zhao D, Hou Y. Long non-coding RNA nuclear-enriched abundant transcript 1 (LncRNA NEAT1) upregulates Cyclin T2 (CCNT2) in laryngeal papilloma through sponging miR-577/miR-1224-5p and blocking cell apoptosis. Bioengineered 2022; 13:1828-1837. [PMID: 35012431 PMCID: PMC8805935 DOI: 10.1080/21655979.2021.2017653] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Long non-coding RNA nuclear-enriched abundant transcript 1 (Lnc-NEAT1) is a crucial mediator in cancer progression, which is associated with poor prognosis of patients with laryngeal papilloma (LP). Herein, we aimed to determine how Lnc-NEAT1 promotes LP development. q-PCR, MTT, EDU and Western blotting were performed to determine that Lnc-NEAT1 facilitates LP cell proliferation and hinders cell apoptosis. LncBase database, q-PCR, GEPIA online database, Dual luciferase reporter and RIP assays were utilized to confirm that Lnc-NEAT1 sponged miR-577/miR-1224-5p and negatively mediated CCNT2. Western blotting, MTT and EDU were used to confirm that Lnc-NEAT1 promoted LP cell proliferation and inhibited cell apoptosis through CCNT2. Lnc-NEAT1 was highly expressed in LP, and enhanced LP cell proliferation, and it was inhibited by Lnc-NEAT1 depleting. Concerning the underlying mechanism, it was found that Lnc-NEAT1 could functionally sponge microRNA-577 (miR-577) and microRNA-1224-5p (miR-1224-5p) and up-regulate Cyclin T2 (CCNT2) in LP cells. Notably, CCNT2 knockdown blocked Lnc-NEAT1-induced LP cell proliferation, and rescued cell apoptosis, which was specifically indicated by restoration of Bax, Cleaved caspase 3 and Cleaved caspase 9. Lnc-NEAT1 played a carcinogenic role in LP through mediating miR-577 or miR-1224-5p/CCNT2 axis, which may provide promising insights for the treatment of LP.
Collapse
Affiliation(s)
- Dong Zhao
- Department of Otolaryngology-Head and Neck Surgery, Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yueting Hou
- Department of Otolaryngology-Head and Neck Surgery, Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| |
Collapse
|
10
|
Shiozaki Y, Miyazaki-Anzai S, Keenan AL, Miyazaki M. MEF2D-NR4A1-FAM134B2-mediated reticulophagy contributes to amino acid homeostasis. Autophagy 2021; 18:1049-1061. [PMID: 34517786 DOI: 10.1080/15548627.2021.1968228] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
We recently identified FAM134B2, which is an N-terminal truncated reticulophagy receptor highly induced by starvation such as fasting of mice and treatment of mammalian cells with a starvation medium that does not contain amino acids, glucose and growth factors. However, which starvation signal mediates the induction of FAM134B2 is still obscure. In this study, we found that amino acid deficiency (AAD) could mimic the starvation condition to induce FAM134B2 expression. Unexpectedly, EIF2AK4/GCN2-mediated integrated signal response (ISR) and MTOR (mechanistic target of rapamycin kinase) signals, which constitute two major signaling pathways that respond to AAD, did not contribute to AAD-induced FAM134B2 induction. mRNA-seq and siRNA screenings identified two ISR-independent transcription factors, MEF2D (myocyte enhancer factor 2D) and NR4A1 (nuclear receptor subfamily 4 group A member 1), involved in AAD-induced FAM134B2 expression. AAD induces MEF2D, resulting in the induction of NR4A1, which in turn induces FAM134B2-mediated reticulophagy to maintain intracellular amino acid levels. In conclusion, the MEF2D-NR4A1-FAM134B2 cascade is a critical signal in amino acid homeostasis.
Collapse
Affiliation(s)
- Yuji Shiozaki
- Department of Medicine, Division of Renal Diseases and Hypertension, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Shinobu Miyazaki-Anzai
- Department of Medicine, Division of Renal Diseases and Hypertension, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Audrey L Keenan
- Department of Medicine, Division of Renal Diseases and Hypertension, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Makoto Miyazaki
- Department of Medicine, Division of Renal Diseases and Hypertension, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| |
Collapse
|
11
|
Xin Y, Zhang J, Fan Y, Wang C. Serum free fatty acids are associated with severe coronary artery calcification, especially in diabetes: a retrospective study. BMC Cardiovasc Disord 2021; 21:343. [PMID: 34266394 PMCID: PMC8281587 DOI: 10.1186/s12872-021-02152-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 07/07/2021] [Indexed: 11/10/2022] Open
Abstract
Background Serum free fatty acid (FFA) concentrations are associated with coronary heart disease and diabetes mellitus (DM). Few studies focused on the relationship between serum FFA levels and coronary artery calcification (CAC). Methods This was a retrospective, single-centered study recruiting patients underwent FFA quantification, coronary angiography and intravascular ultrasound (IVUS). CAC severity was assessed with the maximum calcific angle (arc) of the calcified plaque scanned by IVUS. Patients with an arc ≥ 180° were classified into the severe CAC (SCAC) group, and those with an arc < 180° were classified into the non-SCAC group. Clinical characteristics, serum indices were compared between 2 groups. Logistic regression, receiver operating characteristic (ROC) curves and area under the curves (AUC) were performed. Results Totally, 426 patients with coronary artery disease were consecutively included. Serum FFA levels were significantly higher in the SCAC group than non-SCAC group (6.62 ± 2.17 vs. 5.13 ± 1.73 mmol/dl, p < 0.001). Logistic regression revealed that serum FFAs were independently associated with SCAC after adjusting for confounding factors in the whole cohort (OR 1.414, CI 1.237–1.617, p < 0.001), the non-DM group (OR 1.273, CI 1.087–1.492, p = 0.003) and the DM group (OR 1.939, CI 1.388–2.710, p < 0.001). ROC analysis revealed a serum FFA AUC of 0.695 (CI 0.641–0.750, p < 0.001) in the whole population. The diagnostic predictability was augmented (AUC = 0.775, CI 0.690–0.859, p < 0.001) in the DM group and decreased (AUC = 0.649, CI 0.580–0.718, p < 0.001) in the non-DM group. Conclusions Serum FFA levels were independently associated with SCAC, and could have some predictive capacity for SCAC. The association was strongest in the DM group. Supplementary Information The online version contains supplementary material available at 10.1186/s12872-021-02152-w.
Collapse
Affiliation(s)
- Yangxun Xin
- Department of Cardiology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Junfeng Zhang
- Department of Cardiology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yuqi Fan
- Department of Cardiology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Changqian Wang
- Department of Cardiology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| |
Collapse
|
12
|
Cheng S, Yang GJ, Wang W, Ma DL, Leung CH. Discovery of a tetrahydroisoquinoline-based CDK9-cyclin T1 protein–protein interaction inhibitor as an anti-proliferative and anti-migration agent against triple-negative breast cancer cells. Genes Dis 2021; 9:1674-1688. [PMID: 36157485 PMCID: PMC9485199 DOI: 10.1016/j.gendis.2021.06.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 05/31/2021] [Accepted: 06/07/2021] [Indexed: 12/30/2022] Open
Affiliation(s)
- Shasha Cheng
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macao SAR, PR China
| | - Guan-Jun Yang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macao SAR, PR China
| | - Wanhe Wang
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR, PR China
- Institute of Medical Research, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, PR China
| | - Dik-Lung Ma
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR, PR China
- Corresponding author.
| | - Chung-Hang Leung
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macao SAR, PR China
- Department of Biomedical Sciences, Faculty of Health Sciences, University of Macau, Macao SAR, PR China
- Corresponding author.
| |
Collapse
|
13
|
Yang X, Luo W, Li L, Hu X, Xu M, Wang Y, Feng J, Qian J, Guan X, Zhao Y, Liang G. CDK9 inhibition improves diabetic nephropathy by reducing inflammation in the kidneys. Toxicol Appl Pharmacol 2021; 416:115465. [PMID: 33631230 DOI: 10.1016/j.taap.2021.115465] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 02/06/2021] [Accepted: 02/18/2021] [Indexed: 12/15/2022]
Abstract
Diabetic nephropathy (DN) is a chronic inflammatory renal disease induced by hyperglycemia. Recent studies have implicated cyclin-dependent kinase 9 (CDK9) in inflammatory responses and renal fibrosis. In this study, we explored a potential role of CDK9 in DN by using cultured mouse mesangial cell line SV40 MES-13 and streptozotocin-induced type 1 mouse model of diabetes. We inhibited CDK9 in mice and in cultured cells by a highly selective CDK9 inhibitor, LDC000067 (LDC), and evaluated inflammatory and fibrogenic outcome by mRNA and protein analyses. Our studies show that treatment of diabetic mice with LDC significantly inhibits the levels of inflammatory cytokines and fibrogenic genes in kidney specimens. These reductions were associated with improved renal function. We also found that LDC treatment suppressed MAPK-AP1 activation. We then confirmed the involvement of CDK9 in cultured SV40 MES-13 cells and showed that deficiency in CDK9 prevents glucose-induced inflammatory and fibrogenic proteins. This protection was also afforded by suppression of MAPK-AP1. Taken together, our results how that hyperglycemia activates CDK9-MAPK-AP1 axis in kidneys to induce inflammation and fibrosis, leading to renal dysfunction. Our findings also suggest that CDK9 may serve as a potential therapeutic target for DN.
Collapse
Affiliation(s)
- Xiaojing Yang
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Wu Luo
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Li Li
- Department of Anesthesiology, The Fourth Affiliated Hospital, Zhejiang University School of Medicine, Yiwu, Zhejiang, China
| | - Xiang Hu
- Department of Endocrinology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Mingjiang Xu
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Yi Wang
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Jianpeng Feng
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Jianchang Qian
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Xinfu Guan
- The Affiliated Cangnan Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Yunjie Zhao
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China.
| | - Guang Liang
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China; The Affiliated Cangnan Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China.
| |
Collapse
|
14
|
Miyazaki-Anzai S, Masuda M, Shiozaki Y, Keenan AL, Chonchol M, Kremoser C, Miyazaki M. Free Deoxycholic Acid Exacerbates Vascular Calcification in CKD through ER Stress-Mediated ATF4 Activation. KIDNEY360 2021; 2:857-868. [PMID: 34423309 PMCID: PMC8378801 DOI: 10.34067/kid.0007502020] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Our metabolome approach found that levels of circulating, free deoxycholic acid (DCA) is associated with the severity of vascular calcification in patients with CKD. However, it is not known whether DCA directly causes vascular calcification in CKD. METHODS Using various chemicals and animal and cell culture models, we investigated whether the modulation of DCA levels influences vascular calcification in CKD. RESULTS CKD increased levels of DCA in mice and humans by decreasing urinary DCA excretion. Treatment of cultured VSMCs with DCA but no other bile acids (BAs) induced vascular calcification and osteogenic differentiation through endoplasmic reticulum (ER) stress-mediated activating transcription factor-4 (ATF4) activation. Treatment of mice with Farnesoid X receptor (FXR)-specific agonists selectively reduced levels of circulating cholic acid-derived BAs, such as DCA, protecting from CKD-dependent medial calcification and atherosclerotic calcification. Reciprocal FXR deficiency and DCA treatment induced vascular calcification by increasing levels of circulating DCA and activating the ER stress response. CONCLUSIONS This study demonstrates that DCA plays a causative role in regulating CKD-dependent vascular diseases through ER stress-mediated ATF4 activation.
Collapse
Affiliation(s)
- Shinobu Miyazaki-Anzai
- Division of Renal Diseases, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Masashi Masuda
- Division of Renal Diseases, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Yuji Shiozaki
- Division of Renal Diseases, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Audrey L. Keenan
- Division of Renal Diseases, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Michel Chonchol
- Division of Renal Diseases, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | | | - Makoto Miyazaki
- Division of Renal Diseases, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado,Phenex Pharmaceuticals AG, Heidelberg, Germany
| |
Collapse
|
15
|
Tian X, Ahsan N, Lulla A, Lev A, Abbosh P, Dicker DT, Zhang S, El-Deiry WS. P53-independent partial restoration of the p53 pathway in tumors with mutated p53 through ATF4 transcriptional modulation by ERK1/2 and CDK9. Neoplasia 2021; 23:304-325. [PMID: 33582407 PMCID: PMC7890376 DOI: 10.1016/j.neo.2021.01.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 01/20/2021] [Accepted: 01/25/2021] [Indexed: 12/17/2022] Open
Abstract
A long-term goal in the cancer-field has been to develop strategies for treating p53-mutated tumors. A novel small-molecule, PG3-Oc, restores p53 pathway-signaling in tumor cells with mutant-p53, independently of p53/p73. PG3-Oc partially upregulates the p53-transcriptome (13.7% of public p53 target-gene dataset; 15.2% of in-house dataset) and p53-proteome (18%, HT29; 16%, HCT116-p53−/−). Bioinformatic analysis indicates critical p53-effectors of growth-arrest (p21), apoptosis (PUMA, DR5, Noxa), autophagy (DRAM1), and metastasis-suppression (NDRG1) are induced by PG3-Oc. ERK1/2- and CDK9-kinases are required to upregulate ATF4 by PG3-Oc which restores p53 transcriptomic-targets in cells without functional-p53. PG3-Oc represses MYC (ATF4-independent), and upregulates PUMA (ATF4-dependent) in mediating cell death. With largely nonoverlapping transcriptomes, induced-ATF4 restores p53 transcriptomic targets in drug-treated cells including functionally important mediators such as PUMA and DR5. Our results demonstrate novel p53-independent drug-induced molecular reprogramming involving ERK1/2, CDK9, and ATF4 to restore upregulation of p53 effector genes required for cell death and tumor suppression.
Collapse
Affiliation(s)
- Xiaobing Tian
- Laboratory of Translational Oncology and Experimental Cancer Therapeutics, The Warren Alpert Medical School, Brown University, Providence, RI, USA; The Joint Program in Cancer Biology, Brown University and Lifespan Health System, Providence, RI, USA; Department of Pathology and Laboratory Medicine, Brown University Alpert Medical School, Providence, RI, USA; Division of Biology and Medicine, Brown University, Providence, RI, USA; Molecular Therapeutics Program, Fox Chase Cancer Center, Philadelphia, PA, USA
| | - Nagib Ahsan
- The Joint Program in Cancer Biology, Brown University and Lifespan Health System, Providence, RI, USA; COBRE Center for Cancer Research Development, Proteomics Core Facility, Rhode Island Hospital, Providence, RI, USA; Division of Biology and Medicine, Brown University, Providence, RI, USA
| | - Amriti Lulla
- Molecular Therapeutics Program, Fox Chase Cancer Center, Philadelphia, PA, USA
| | - Avital Lev
- Molecular Therapeutics Program, Fox Chase Cancer Center, Philadelphia, PA, USA
| | - Philip Abbosh
- Molecular Therapeutics Program, Fox Chase Cancer Center, Philadelphia, PA, USA
| | - David T Dicker
- Laboratory of Translational Oncology and Experimental Cancer Therapeutics, The Warren Alpert Medical School, Brown University, Providence, RI, USA; The Joint Program in Cancer Biology, Brown University and Lifespan Health System, Providence, RI, USA; Department of Pathology and Laboratory Medicine, Brown University Alpert Medical School, Providence, RI, USA; Division of Biology and Medicine, Brown University, Providence, RI, USA; Molecular Therapeutics Program, Fox Chase Cancer Center, Philadelphia, PA, USA
| | - Shengliang Zhang
- Laboratory of Translational Oncology and Experimental Cancer Therapeutics, The Warren Alpert Medical School, Brown University, Providence, RI, USA; The Joint Program in Cancer Biology, Brown University and Lifespan Health System, Providence, RI, USA; Department of Pathology and Laboratory Medicine, Brown University Alpert Medical School, Providence, RI, USA; Division of Biology and Medicine, Brown University, Providence, RI, USA; Molecular Therapeutics Program, Fox Chase Cancer Center, Philadelphia, PA, USA
| | - Wafik S El-Deiry
- Laboratory of Translational Oncology and Experimental Cancer Therapeutics, The Warren Alpert Medical School, Brown University, Providence, RI, USA; The Joint Program in Cancer Biology, Brown University and Lifespan Health System, Providence, RI, USA; Department of Pathology and Laboratory Medicine, Brown University Alpert Medical School, Providence, RI, USA; Division of Biology and Medicine, Brown University, Providence, RI, USA; Molecular Therapeutics Program, Fox Chase Cancer Center, Philadelphia, PA, USA; Hematology-Oncology Division, Department of Medicine, Rhode Island Hospital and Brown University, Providence, RI, USA.
| |
Collapse
|
16
|
Gao JW, He WB, Xie CM, Gao M, Feng LY, Liu ZY, Wang JF, Huang H, Liu PM. Aldosterone enhances high phosphate-induced vascular calcification through inhibition of AMPK-mediated autophagy. J Cell Mol Med 2020; 24:13648-13659. [PMID: 33150736 PMCID: PMC7754028 DOI: 10.1111/jcmm.15813] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 07/11/2020] [Accepted: 08/10/2020] [Indexed: 12/25/2022] Open
Abstract
It remains unclear whether the necessity of calcified mellitus induced by high inorganic phosphate (Pi) is required and the roles of autophagy plays in aldosterone (Aldo)‐enhanced vascular calcification (VC) and vascular smooth muscle cell (VSMC) osteogenic differentiation. In the present study, we found that Aldo enhanced VC both in vivo and in vitro only in the presence of high Pi, alongside with increased expression of VSMC osteogenic proteins (BMP2, Runx2 and OCN) and decreased expression of VSMC contractile proteins (α‐SMA, SM22α and smoothelin). However, these effects were blocked by mineralocorticoid receptor inhibitor, spironolactone. In addition, the stimulatory effects of Aldo on VSMC calcification were further accelerated by the autophagy inhibitor, 3‐MA, and were counteracted by the autophagy inducer, rapamycin. Moreover, inhibiting adenosine monophosphate‐activated protein kinase (AMPK) by Compound C attenuated Aldo/MR‐enhanced VC. These results suggested that Aldo facilitates high Pi‐induced VSMC osteogenic phenotypic switch and calcification through MR‐mediated signalling pathways that involve AMPK‐dependent autophagy, which provided new insights into Aldo excess‐associated VC in various settings.
Collapse
Affiliation(s)
- Jing-Wei Gao
- Department of Cardiology, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, China
| | - Wan-Bing He
- Department of Cardiology, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, China
| | - Chang-Ming Xie
- Cardiovascular Department, The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
| | - Ming Gao
- Department of Radiology, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, China
| | - Lei-Yu Feng
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zhao-Yu Liu
- Medical Research Center, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, China
| | - Jing-Feng Wang
- Department of Cardiology, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, China
| | - Hui Huang
- Cardiovascular Department, The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
| | - Pin-Ming Liu
- Department of Cardiology, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, China
| |
Collapse
|
17
|
Liu X, Song J, Zhang Y, Wang H, Sun H, Feng X, Hou M, Chen G, Tang Q, Ji M. ASF1B promotes cervical cancer progression through stabilization of CDK9. Cell Death Dis 2020; 11:705. [PMID: 32848135 PMCID: PMC7449975 DOI: 10.1038/s41419-020-02872-5] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 07/29/2020] [Accepted: 07/30/2020] [Indexed: 12/12/2022]
Abstract
Cervical cancer (CC) is one of the most deadly cancers in women, its current treatments still result in poor outcomes and developing the novel targets and therapeutic strategies are urgently needed. Recent studies have shown that anti-silencing function 1B (ASF1B) might be used as a new proliferation marker for cancer diagnosis and prognosis. However, the expression and function of ASF1B in cervical cancer remain unclear. Here, we induced ASF1B knockdown and overexpression in cervical cancer cell lines and detected the biological behavior changes in vitro. Furthermore, we established two murine models using stable ASF1B-shRNA HeLa cells or normal HeLa cells following AAV-shRNA-ASF1B administration to evaluate how suppression of ASF1B affects tumor growth. We showed that ASF1B functions as an oncogene in cervical cancer cells. Silence of ASF1B suppressed cervical cancer cell growth in vitro and in vivo, while, ASF1B overexpression accelerated cancer cell proliferation. Furthermore, ASF1B deficiency induced cell cycle arrest and apoptosis. Mechanistically, we found that ASF1B formed stable complexes with cyclin-dependent kinase 9 (CDK9), and positively regulated CDK9 stabilization. Taken together, tumorigenic ASF1B could be targeted to suppress cervical cancer tumor growth by inducing apoptotic cell death.
Collapse
Affiliation(s)
- Xinjian Liu
- Department of Pathogen Biology, Nanjing Medical University, 211166, Nanjing, China
- Key Laboratory of Antibody Technique of National Health Commission of China, Nanjing Medical University, 211166, Nanjing, China
| | - Jingwei Song
- Department of Pathogen Biology, Nanjing Medical University, 211166, Nanjing, China
- Laboratory Medicine Center, The Second Affiliated Hospital of Nanjing Medical University, 210000, Nanjing, China
| | - Yenan Zhang
- Department of Pathogen Biology, Nanjing Medical University, 211166, Nanjing, China
| | - Huiquan Wang
- Department of Pathogen Biology, Nanjing Medical University, 211166, Nanjing, China
| | - Hongzhi Sun
- Department of Pathogen Biology, Nanjing Medical University, 211166, Nanjing, China
| | - Xiaomin Feng
- The Affiliated Obstetrics and Gynecology Hospital of Nanjing Medical University, 210004, Nanjing, China
| | - Min Hou
- Department of Pathogen Biology, Nanjing Medical University, 211166, Nanjing, China
| | - Guo Chen
- Department of Medical Biochemistry and Molecular Biology, School of Medicine, Jinan University, 510632, Guangzhou, China
| | - Qi Tang
- Key Laboratory of Antibody Technique of National Health Commission of China, Nanjing Medical University, 211166, Nanjing, China
| | - Minjun Ji
- Department of Pathogen Biology, Nanjing Medical University, 211166, Nanjing, China.
- Key Laboratory of Antibody Technique of National Health Commission of China, Nanjing Medical University, 211166, Nanjing, China.
| |
Collapse
|
18
|
Dong Q, Chen Y, Liu W, Liu X, Chen A, Yang X, Li Y, Wang S, Fu M, Ou JS, Lu L, Yan J. 25-Hydroxycholesterol promotes vascular calcification via activation of endoplasmic reticulum stress. Eur J Pharmacol 2020; 880:173165. [PMID: 32423869 DOI: 10.1016/j.ejphar.2020.173165] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 04/23/2020] [Accepted: 05/04/2020] [Indexed: 12/15/2022]
Abstract
Vascular calcification is a highly regulated process similar to osteogenesis involving phenotypic change of vascular smooth muscle cells (VSMCs). 25-Hydroxycholesterol (25-HC), one of oxysterols synthesized by the enzyme cholesterol 25-hydroxylase, has been shown to promote bovine calcifying vascular cells (CVC) calcification. However, whether and how 25-HC regulates vascular calcification are not completely understood. In this study, in vitro and ex vivo models of vascular calcification were used to determine whether 25-HC regulates vascular calcification. Alizarin red staining and calcium content assay showed that 25-HC treatment promoted calcification of rat and human VSMCs in a dose-dependent manner. Similarly, ex vivo study further confirmed that 25-HC accelerated calcification of rat aortic rings. In addition, western blot analysis showed that 25-HC significantly up-regulated the expression of endoplasmic reticulum stress (ERS) signaling molecules including ATF4 and CHOP in VSMCs and flow cytometry analysis revealed that 25-HC increased apoptosis of VSMCs. Moreover, knockdown of CHOP by siRNA blocked 25-HC-induced mineral deposition in VSMCs. Collectively, this study for the first time demonstrates that 25-HC promotes vascular calcification via ATF4/CHOP signaling using in vitro and ex vivo models, suggesting that ERS is involved in the regulation of 25-HC-induced vascular calcification.
Collapse
MESH Headings
- Activating Transcription Factor 4/metabolism
- Animals
- Aorta, Thoracic/cytology
- Apoptosis/drug effects
- Calcium/metabolism
- Cells, Cultured
- Endoplasmic Reticulum Stress/drug effects
- Humans
- Hydroxycholesterols/pharmacology
- Muscle, Smooth, Vascular/cytology
- Muscle, Smooth, Vascular/metabolism
- Myocytes, Smooth Muscle/drug effects
- Myocytes, Smooth Muscle/metabolism
- RNA, Small Interfering/genetics
- Rats, Sprague-Dawley
- Signal Transduction/drug effects
- Transcription Factor CHOP/genetics
- Vascular Calcification/chemically induced
- Vascular Calcification/metabolism
Collapse
Affiliation(s)
- Qianqian Dong
- Department of Cardiology, Laboratory of Heart Center, Heart Center, Zhujiang Hospital, Southern Medical University, China; Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, China
| | - Yanting Chen
- Department of Pathophysiolgy, Zhongshan School of Medicine, Sun Yat-Sen University, China
| | - Wantao Liu
- Department of Cardiology, Laboratory of Heart Center, Heart Center, Zhujiang Hospital, Southern Medical University, China; Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, China
| | - Xiaoyu Liu
- Department of Cardiology, Laboratory of Heart Center, Heart Center, Zhujiang Hospital, Southern Medical University, China; Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, China
| | - An Chen
- Department of Cardiology, Laboratory of Heart Center, Heart Center, Zhujiang Hospital, Southern Medical University, China; Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, China
| | - Xiulin Yang
- Department of Cardiology, Laboratory of Heart Center, Heart Center, Zhujiang Hospital, Southern Medical University, China; Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, China
| | - Yining Li
- Department of Cardiology, Laboratory of Heart Center, Heart Center, Zhujiang Hospital, Southern Medical University, China; Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, China
| | - Siyi Wang
- Department of Cardiology, Laboratory of Heart Center, Heart Center, Zhujiang Hospital, Southern Medical University, China; Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, China
| | - Mingwei Fu
- Department of Cardiology, Laboratory of Heart Center, Heart Center, Zhujiang Hospital, Southern Medical University, China; Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, China
| | - Jing-Song Ou
- Division of Cardiac Surgery, The First Affiliated Hospital, Sun Yat-Sen University, China
| | - Lihe Lu
- Department of Pathophysiolgy, Zhongshan School of Medicine, Sun Yat-Sen University, China.
| | - Jianyun Yan
- Department of Cardiology, Laboratory of Heart Center, Heart Center, Zhujiang Hospital, Southern Medical University, China; Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, China.
| |
Collapse
|
19
|
Sun Z, Li L, Zhang L, Yan J, Shao C, Bao Z, Liu J, Li Y, Zhou M, Hou L, Jing L, Pang Q, Geng Y, Mao X, Gu W, Wang Z. Macrophage galectin-3 enhances intimal translocation of vascular calcification in diabetes mellitus. Am J Physiol Heart Circ Physiol 2020; 318:H1068-H1079. [PMID: 32216615 DOI: 10.1152/ajpheart.00690.2019] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The clinical risks and prognosis of diabetic vascular intimal calcification (VIC) and medial calcification (VMC) are different. This study aims to investigate the mechanism of VIC/VMC translocation. Anterior tibial arteries were collected from patients with diabetic foot amputation. The patients were then divided into VIC and VMC groups. There were plaques in all anterior tibial arteries, while the enrichment of galectin-3 in arterial plaques in the VIC group was significantly higher than that in the VMC group. Furthermore, a macrophage/vascular smooth muscle cell (VSMC) coculture system was constructed. VSMC-derived extracellular vesicles (EVs) was labeled with fluorescent probe. After macrophages were pretreated with recombinant galectin-3 protein, the migration of VSMC-derived EVs and VSMC-derived calcification was more pronounced. And anti-galectin-3 antibody can inhibit this process of EVs and calcification translocation. Then, lentivirus (LV)-treated bone marrow cells (BMCs) were transplanted into apolipoprotein E-deficient (ApoE-/-) mice, and a diabetic atherosclerosis mouse model was constructed. After 15 wk of high-fat diet, ApoE-/- mice transplanted with LV-shgalectin-3 BMCs exhibited medial calcification and a concentrated distribution of EVs in the media. In conclusion, upregulation of galectin-3 in macrophages promotes the migration of VSMC-derived EVs to the intima and induces diabetic vascular intimal calcification.NEW & NOTEWORTHY The clinical risk and prognosis of vascular intimal and medial calcification are different. Macrophage galectin-3 regulates the migration of vascular smooth muscle cell-derived extracellular vesicles and mediates diabetic vascular intimal/medial calcification translocation. This study may provide insights into the early intervention in diabetic vascular calcification.
Collapse
Affiliation(s)
- Zhen Sun
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Lihua Li
- Department of Pathology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Lili Zhang
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Jinchuan Yan
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Chen Shao
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Zhengyang Bao
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Jia Liu
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Yalan Li
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Mengxue Zhou
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Lina Hou
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Lele Jing
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Qiwen Pang
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Yue Geng
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Xiang Mao
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Wen Gu
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Zhongqun Wang
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| |
Collapse
|
20
|
Kohno S, Shiozaki Y, Keenan AL, Miyazaki-Anzai S, Miyazaki M. An N-terminal-truncated isoform of FAM134B (FAM134B-2) regulates starvation-induced hepatic selective ER-phagy. Life Sci Alliance 2019; 2:2/3/e201900340. [PMID: 31101736 PMCID: PMC6526285 DOI: 10.26508/lsa.201900340] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 05/07/2019] [Accepted: 05/07/2019] [Indexed: 12/20/2022] Open
Abstract
This study has identified a novel truncated isoform of FAM134B (FAM134B-2) that regulates starvation-induced selective ER-phagy of secretory proteins such as ApoCIII through the activation of C/EBPβ. Autophagy is a conserved system that adapts to nutrient starvation, after which proteins and organelles are degraded to recycle amino acids in response to starvation. Recently, the ER was added to the list of targets of autophagic degradation. Autophagic degradation pathways of bulk ER and the specific proteins sorted through the ER are considered key mechanisms in maintaining ER homeostasis. Four ER-resident proteins (FAM134B, CCPG1, SEC62, and RTN3) have been identified as ER-resident cargo receptors, which contain LC3-interacting regions. In this study, we identified an N-terminal–truncated isoform of FAM134B (FAM134B-2) that contributes to starvation-induced ER-related autophagy. Hepatic FAM134B-2 but not full-length FAM134B (FAM134B-1) is expressed in a fed state. Starvation drastically induces FAM134B-2 but no other ER-resident cargo receptors through transcriptional activation by C/EBPβ. C/EBPβ overexpression increases FAM134B-2 recruitment into autophagosomes and lysosomal degradation. FAM134B-2 regulates lysosomal degradation of ER-retained secretory proteins such as ApoCIII. This study demonstrates that the C/EBPβ-FAM134B-2 axis regulates starvation-induced selective ER-phagy.
Collapse
Affiliation(s)
- Shohei Kohno
- Division of Renal Diseases and Hypertension, Department of Medicine, University of Colorado Denver, Aurora, CO, USA
| | - Yuji Shiozaki
- Division of Renal Diseases and Hypertension, Department of Medicine, University of Colorado Denver, Aurora, CO, USA
| | - Audrey L Keenan
- Division of Renal Diseases and Hypertension, Department of Medicine, University of Colorado Denver, Aurora, CO, USA
| | - Shinobu Miyazaki-Anzai
- Division of Renal Diseases and Hypertension, Department of Medicine, University of Colorado Denver, Aurora, CO, USA
| | - Makoto Miyazaki
- Division of Renal Diseases and Hypertension, Department of Medicine, University of Colorado Denver, Aurora, CO, USA
| |
Collapse
|
21
|
Stretton C, Lipina C, Hyde R, Cwiklinski E, Hoffmann TM, Taylor PM, Hundal HS. CDK7 is a component of the integrated stress response regulating SNAT2 (SLC38A2)/System A adaptation in response to cellular amino acid deprivation. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2019; 1866:978-991. [PMID: 30857869 PMCID: PMC6456927 DOI: 10.1016/j.bbamcr.2019.03.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 03/04/2019] [Accepted: 03/06/2019] [Indexed: 12/31/2022]
Abstract
Extracellular amino acid (AA) withdrawal/restriction invokes an integrated stress response (ISR) that induces global suppression of protein synthesis whilst allowing transcription and translation of a select group of genes, whose protein products facilitate cellular adaptation to AA insufficiency. Transcriptional induction of the System A/SNAT2 AA transporter represents a classic adaptation response and crucially depends upon activation of the General Control Nonderepressible-2 kinase/Activating transcription factor 4 (GCN2/ATF4) pathway. However, the ISR may also include additional signalling inputs operating in conjunction or independently of GCN2/ATF4 to upregulate SNAT2. Herein, we show that whilst pharmacological inhibition of MEK-ERK, mTORC1 and p38 MAP kinase signalling has no detectable effect on System A upregulation, inhibitors targeting GSK3 (e.g. SB415286) caused significant repression of the SNAT2 adaptation response. Strikingly, the effects of SB415286 persist in cells in which GSK3α/β have been stably silenced indicating an off-target effect. We show that SB415286 can also inhibit cyclin-dependent kinases (CDK) and that roscovitine and flavopiridol (two pan CDK inhibitors) are effective repressors of the SNAT2 adaptive response. In particular, our work reveals that CDK7 activity is upregulated in AA-deprived cells in a GCN-2-dependent manner and that a potent and selective CDK7 inhibitor, THZ-1, not only attenuates the increase in ATF4 expression but blocks System A adaptation. Importantly, the inhibitory effects of THZ-1 on System A adaptation are mitigated in cells expressing a doxycycline-inducible drug-resistant form of CDK7. Our data identify CDK7 as a novel component of the ISR regulating System A adaptation in response to AA insufficiency. Roscovitine and flavopiridol (CDK inhibitors) block the System A adaptive response. Extracellular amino acid (AA) withdrawal induces CDK7 activation. Pharmacological inhibition of GCN2 represses CDK7 activation in AA-deprived cells. Targeted suppression of CDK7 represses ATF4 expression and System A adaptation.
Collapse
Affiliation(s)
- Clare Stretton
- Division of Cell Signalling and Immunology, Sir James Black Centre, School of Life Sciences, University of Dundee, Dundee DD1 5EH, UK
| | - Christopher Lipina
- Division of Cell Signalling and Immunology, Sir James Black Centre, School of Life Sciences, University of Dundee, Dundee DD1 5EH, UK
| | - Russell Hyde
- Division of Cell Signalling and Immunology, Sir James Black Centre, School of Life Sciences, University of Dundee, Dundee DD1 5EH, UK
| | - Emma Cwiklinski
- Division of Cell Signalling and Immunology, Sir James Black Centre, School of Life Sciences, University of Dundee, Dundee DD1 5EH, UK
| | - Thorsten M Hoffmann
- Division of Cell Signalling and Immunology, Sir James Black Centre, School of Life Sciences, University of Dundee, Dundee DD1 5EH, UK
| | - Peter M Taylor
- Division of Cell Signalling and Immunology, Sir James Black Centre, School of Life Sciences, University of Dundee, Dundee DD1 5EH, UK
| | - Harinder S Hundal
- Division of Cell Signalling and Immunology, Sir James Black Centre, School of Life Sciences, University of Dundee, Dundee DD1 5EH, UK.
| |
Collapse
|