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席 进, 张 敏, 张 永, 张 晨, 张 雨, 王 锐, 申 林, 李 静, 宋 雪. [Upregulating KLF11 ameliorates intestinal inflammation in mice with 2, 4, 6-trinitrobenesulfonic acid-induced colitis by inhibiting the JAK2/STAT3 signaling pathway]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2024; 44:765-772. [PMID: 38708511 PMCID: PMC11073944 DOI: 10.12122/j.issn.1673-4254.2024.04.19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Indexed: 05/07/2024]
Abstract
OBJECTIVE To investigate the expression level of Kruppel-like transcription factor family member KLF11 in intestinal mucosal tissues of Crohn's disease (CD) and its regulatory effect on intestinal inflammation in CD-like colitis. METHODS We examined KLF11 expression levels in diseased and normal colon mucosal tissues from 12 CD patients and 12 patients with colorectal cancer using immunofluorescence staining. KLF11 expression was also detected in the colon mucosal tissues of a mouse model of 2, 4, 6-trinitrobenesulfonic acid (TNBS)-induced colitis. A recombinant adenoviral vector was used to upregulate KLF11 expression in the mouse models and the changes in intestinal inflammation was observed. A Caco-2 cell model with stable KLF11 overexpression was constructed by lentiviral infection. The effect of KLF11 overexpression on expressions of JAK2/STAT3 signaling pathway proteins was investigated using immunoblotting in both the mouse and cell models. The mouse models were treated with coumermycin A1, a JAK2/STAT3 signaling pathway agonist, and the changes in intestinal inflammatory responses were observed. RESULTS The expression level of KLF11 was significantly lowered in both the clinical specimens of diseased colon mucosal tissues and the colon tissues of mice with TNBS-induced colitis (P < 0.05). Adenovirus-mediated upregulation of KLF11 significantly improved intestinal inflammation and reduced the expression levels of inflammatory factors in the intestinal mucosa of the colitis mouse models (P < 0.05). Overexpression of KLF11 significantly inhibited the expression levels of p-JAK2 and p-STAT3 in intestinal mucosal tissues of the mouse models and in Caco-2 cells (P < 0.05). Treatment with coumermycin A1 obviously inhibited the effect of KLF11 upregulation for improving colitis and significantly increased the expression levels of inflammatory factors in the intestinal mucosa of the mouse models (P < 0.05). CONCLUSION KLF11 is downregulated in the intestinal mucosa in CD, and upregulation of KLF11 can improve intestinal inflammation and reduce the production of inflammatory factors probably by inhibiting the JAK2/STAT3 signaling pathway.
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Affiliation(s)
- 进 席
- 蚌埠医科大学,安徽 蚌埠 233000Bengbu Medical University, Bengbu 233000, China
| | - 敏 张
- 蚌埠医科大学,安徽 蚌埠 233000Bengbu Medical University, Bengbu 233000, China
- 蚌埠医科大学第一附属医院检验科,安徽 蚌埠 233000Clinical Laboratory, First Affiliated Hospital of Bengbu Medical University, Bengbu 233000, China
| | - 永玉 张
- 蚌埠医科大学,安徽 蚌埠 233000Bengbu Medical University, Bengbu 233000, China
| | - 晨 张
- 蚌埠医科大学,安徽 蚌埠 233000Bengbu Medical University, Bengbu 233000, China
| | - 雨路 张
- 蚌埠医科大学,安徽 蚌埠 233000Bengbu Medical University, Bengbu 233000, China
| | - 锐 王
- 蚌埠医科大学,安徽 蚌埠 233000Bengbu Medical University, Bengbu 233000, China
| | - 林 申
- 蚌埠医科大学,安徽 蚌埠 233000Bengbu Medical University, Bengbu 233000, China
| | - 静 李
- 蚌埠医科大学第一附属医院检验科,安徽 蚌埠 233000Clinical Laboratory, First Affiliated Hospital of Bengbu Medical University, Bengbu 233000, China
- 蚌埠医科大学第一附属医院炎症相关性疾病基础与转化研究安徽省重点实验室,安徽 蚌埠 233000Anhui Province Key Laboratory of Basic and Translational Research of inflammation-related Diseases, First Affiliated Hospital of Bengbu Medical University, Bengbu 233000, China
| | - 雪 宋
- 蚌埠医科大学第一附属医院中心实验室,安徽 蚌埠 233000Central Laboratory, First Affiliated Hospital of Bengbu Medical University, Bengbu 233000, China
- 蚌埠医科大学第一附属医院炎症相关性疾病基础与转化研究安徽省重点实验室,安徽 蚌埠 233000Anhui Province Key Laboratory of Basic and Translational Research of inflammation-related Diseases, First Affiliated Hospital of Bengbu Medical University, Bengbu 233000, China
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Yan K, Bian J, He L, Song B, Shen L, Zhen Y. Effects of KLF11 on Vascular Smooth Muscle Cells and its Underlying Mechanisms in Intracranial Aneurysm. Biochem Genet 2024:10.1007/s10528-024-10681-0. [PMID: 38368567 DOI: 10.1007/s10528-024-10681-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Accepted: 01/02/2024] [Indexed: 02/19/2024]
Abstract
Vascular smooth muscle cells (VSMCs) affect the phenotypic changes in intracranial aneurysm (IA). They exhibit enhanced dissociation and migration and play a key role in IA pathogenesis. KLF transcription factor 11 (KLF11), a member of the KLF family, significantly affects the cancer cell proliferation, differentiation, and apoptosis. However, its expression, biological functions, and latent action mechanisms in IA remain unclear. This study aimed to analyze the effects of KLF11 on H2O2-induced human brain VSMCs (HBVSMCs) in IA. We determined the mRNA levels of KLF11 in 15 paired arterial wall tissues of patients with IA and healthy volunteers. HBVSMCs were stimulated with H2O2 for 6 h to establish an IA model in vitro. Cell viability, apoptosis, and inflammatory cytokine (interleukin [IL-1β, tumor necrosis factor-α, and IL-6) levels were assessed using the 3-(4,5-dimethylthiazol-2-yl)-2-5-diphenyltetrazolium bromide, flow cytometry, and enzyme-linked immunosorbent assays, respectively. KLF11 expression was determined via quantitative reverse transcription-polymerase chain reaction, western blotting, and immunofluorescence analyses. Furthermore, p-p38, p38, cleaved-caspase 3, and caspase 3 levels were determined via western blotting. KLF11 levels were downregulated in the arterial wall tissues of patients with IA than in those of the control group. KLF11 upregulation by KLF11-plasmid promoted the cell viability, reduced apoptosis, decreased cleaved-caspase 3 expression, and inhibited the secretion of inflammatory factors in H2O2-induced HBVSMCs. KLF11-plasmid remarkably reduced p-p38 expression and p-p38/p-38 ratio; however, these effects were reversed by P79350 treatment. Overall, KLF11 upregulation improved the HBVSMC functions and exerted protective effects against IA, suggesting its potential for IA treatment.
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Affiliation(s)
- Ke Yan
- Department of Neurosurgery, Clinical Medical College of Yangzhou University, Northern Jiangsu People's Hospital, No. 98 Nantong West Road, Yangzhou, 225001, China
| | - Jiarong Bian
- Department of Respiratory Medicine, Clinical Medical College of Yangzhou University, Northern Jiangsu People's Hospital, Yangzhou, 225001, China
| | - Liang He
- Department of Neurosurgery, Clinical Medical College of Yangzhou University, Northern Jiangsu People's Hospital, No. 98 Nantong West Road, Yangzhou, 225001, China
| | - Bingwei Song
- Department of Neurosurgery, Clinical Medical College of Yangzhou University, Northern Jiangsu People's Hospital, No. 98 Nantong West Road, Yangzhou, 225001, China
| | - Linhai Shen
- Department of Neurosurgery, Clinical Medical College of Yangzhou University, Northern Jiangsu People's Hospital, No. 98 Nantong West Road, Yangzhou, 225001, China
| | - Yong Zhen
- Department of Neurosurgery, Clinical Medical College of Yangzhou University, Northern Jiangsu People's Hospital, No. 98 Nantong West Road, Yangzhou, 225001, China.
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Li Z, Zhang J, Ma Z, Zhao G, He X, Yu X, Fu Q, Wu N, Ding Z, Sun H, Zhang X, Zhu Y, Chen L, He J. Endothelial YAP Mediates Hyperglycemia-Induced Platelet Hyperactivity and Arterial Thrombosis. Arterioscler Thromb Vasc Biol 2024; 44:254-270. [PMID: 37916416 DOI: 10.1161/atvbaha.123.319835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 10/11/2023] [Indexed: 11/03/2023]
Abstract
BACKGROUND Hyperglycemia-a symptom that characterizes diabetes-is highly associated with atherothrombotic complications. However, the underlying mechanism by which hyperglycemia fuels platelet activation and arterial thrombus formation is still not fully understood. METHODS The profiles of polyunsaturated fatty acid metabolites in the plasma of patients with diabetes and healthy controls were determined with targeted metabolomics. FeCl3-induced carotid injury model was used to assess arterial thrombus formation in mice with endothelial cell (EC)-specific YAP (yes-associated protein) deletion or overexpression. Flow cytometry and clot retraction assay were used to evaluate platelet activation. RNA sequencing and multiple biochemical analyses were conducted to unravel the underlying mechanism. RESULTS The plasma PGE2 (prostaglandin E2) concentration was elevated in patients with diabetes with thrombotic complications and positively correlated with platelet activation. The PGE2 synthetases COX-2 (cyclooxygenase-2) and mPGES-1 (microsomal prostaglandin E synthase-1) were found to be highly expressed in ECs but not in other type of vessel cells in arteries from both patients with diabetes and hyperglycemic mice, compared with nondiabetic individuals and control mice, respectively. A combination of RNA sequencing and ingenuity pathway analyses indicated the involvement of YAP signaling. EC-specific deletion of YAP limited platelet activation and arterial thrombosis in hyperglycemic mice, whereas EC-specific overexpression of YAP in mice mimicked the prothrombotic state of diabetes, without affecting hemostasis. Mechanistically, we found that hyperglycemia/high glucose-induced endothelial YAP nuclear translocation and subsequently transcriptional expression of COX-2 and mPGES-1 contributed to the elevation of PGE2 and platelet activation. Blockade of EP3 (prostaglandin E receptor 3) activation by oral administration of DG-041 reversed the hyperactivity of platelets and delayed thrombus formation in both EC-specific YAP-overexpressing and hyperglycemic mice. CONCLUSIONS Collectively, our data suggest that hyperglycemia-induced endothelial YAP activation aggravates platelet activation and arterial thrombus formation via PGE2/EP3 signaling. Targeting EP3 with DG-041 might be therapeutic for diabetes-related thrombosis.
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Affiliation(s)
- Zhiyu Li
- Tianjin Key Laboratory of Metabolic Diseases, Province and Ministry Co-Sponsored Collaborative Innovation Center for Medical Epigenetics, Department of Physiology and Pathophysiology (Z.L., J.Z., G.Z., X.H., X.Z., Y.Z., J.H.), Tianjin Medical University, China
| | - Jiachen Zhang
- Tianjin Key Laboratory of Metabolic Diseases, Province and Ministry Co-Sponsored Collaborative Innovation Center for Medical Epigenetics, Department of Physiology and Pathophysiology (Z.L., J.Z., G.Z., X.H., X.Z., Y.Z., J.H.), Tianjin Medical University, China
| | - Zejun Ma
- Tianjin Key Laboratory of Metabolic Diseases, Province and Ministry Co-Sponsored Collaborative Innovation Center for Medical Epigenetics, Department of Physiology and Pathophysiology (Z.L., J.Z., G.Z., X.H., X.Z., Y.Z., J.H.), Tianjin Medical University, China
- National Humanities Center Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology (Z.M., H.S., L.C.), Tianjin Medical University, China
| | - Guobing Zhao
- Tianjin Key Laboratory of Metabolic Diseases, Province and Ministry Co-Sponsored Collaborative Innovation Center for Medical Epigenetics, Department of Physiology and Pathophysiology (Z.L., J.Z., G.Z., X.H., X.Z., Y.Z., J.H.), Tianjin Medical University, China
| | - Xue He
- Tianjin Key Laboratory of Metabolic Diseases, Province and Ministry Co-Sponsored Collaborative Innovation Center for Medical Epigenetics, Department of Physiology and Pathophysiology (Z.L., J.Z., G.Z., X.H., X.Z., Y.Z., J.H.), Tianjin Medical University, China
| | - Xuefang Yu
- Departments of Cardiology (X.Y.), Tianjin Medical University General Hospital, China
| | - Qiang Fu
- Cardiovascular Surgery (Q.F., N.W.), Tianjin Medical University General Hospital, China
| | - Naishi Wu
- Cardiovascular Surgery (Q.F., N.W.), Tianjin Medical University General Hospital, China
| | - Zhongren Ding
- School of Pharmacy (Z.D.), Tianjin Medical University, China
| | - Haipeng Sun
- National Humanities Center Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology (Z.M., H.S., L.C.), Tianjin Medical University, China
| | - Xu Zhang
- Tianjin Key Laboratory of Metabolic Diseases, Province and Ministry Co-Sponsored Collaborative Innovation Center for Medical Epigenetics, Department of Physiology and Pathophysiology (Z.L., J.Z., G.Z., X.H., X.Z., Y.Z., J.H.), Tianjin Medical University, China
| | - Yi Zhu
- Tianjin Key Laboratory of Metabolic Diseases, Province and Ministry Co-Sponsored Collaborative Innovation Center for Medical Epigenetics, Department of Physiology and Pathophysiology (Z.L., J.Z., G.Z., X.H., X.Z., Y.Z., J.H.), Tianjin Medical University, China
| | - Liming Chen
- National Humanities Center Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology (Z.M., H.S., L.C.), Tianjin Medical University, China
| | - Jinlong He
- Tianjin Key Laboratory of Metabolic Diseases, Province and Ministry Co-Sponsored Collaborative Innovation Center for Medical Epigenetics, Department of Physiology and Pathophysiology (Z.L., J.Z., G.Z., X.H., X.Z., Y.Z., J.H.), Tianjin Medical University, China
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Zhou ZQ, Lv X, Liu SB, Qu HC, Xie QP, Sun LF, Li G. The induction of ferroptosis by KLF11/NCOA4 axis: the inhibitory role in clear cell renal cell carcinoma. Hum Cell 2023; 36:2162-2178. [PMID: 37642832 DOI: 10.1007/s13577-023-00973-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Accepted: 08/16/2023] [Indexed: 08/31/2023]
Abstract
Ferroptosis is a form of cell death and has great potential application in the treatment of many cancers, including clear cell renal cell carcinoma (ccRCC). Herein, we identified the essential roles of Krüppel-like factor 11 (KLF11) in suppressing the progression of ccRCC. By analyzing mRNA expression data from the Gene Expression Omnibus (GEO) database, we found that KLF11 was a significantly downregulated gene in ccRCC tissues. The results of subsequent functional assays verified that KLF11 played an antiproliferative role in ccRCC cells and xenograft tumors. Furthermore, gene set enrichment analysis indicated that ferroptosis was involved in ccRCC development, and correlation analysis revealed that KLF11 was positively related to ferroptosis drivers. We also found that KLF11 promoted ferroptosis in ccRCC by downregulating the protein expression of ferritin, system xc (-) cystine/glutamate antiporter (xCT), and glutathione peroxidase 4 (GPX4), acting as the inhibitory factors of ferroptosis and increasing the intracellular levels of lipid reactive oxygen species (ROS). As a transcriptional regulator, KLF11 significantly increased the promoter activity of nuclear receptor coactivator 4 (NCOA4), a gene significantly downregulated in ccRCC and whose low expression is associated with poor survival. The characteristics of ccRCC cells caused by KLF11 overexpression were reversed after NCOA4 silencing. In summary, the present study suggests that KLF11 suppresses the progression of ccRCC by increasing NCOA4 transcription. Therefore, the KLF11/NCOA4 axis may serve as a novel therapeutic target for human ccRCC.
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Affiliation(s)
- Zi-Qi Zhou
- Department of Urology,, Cancer Hospital of China Medical University (Liaoning Cancer Hospital and Institute), No. 44, Xiaoheyan Road, Dadong District, Shenyang, Liaoning Province, China
| | - Xi Lv
- Department of Urology,, Cancer Hospital of China Medical University (Liaoning Cancer Hospital and Institute), No. 44, Xiaoheyan Road, Dadong District, Shenyang, Liaoning Province, China
| | - Shi-Bo Liu
- Department of Urology,, Cancer Hospital of China Medical University (Liaoning Cancer Hospital and Institute), No. 44, Xiaoheyan Road, Dadong District, Shenyang, Liaoning Province, China
| | - Hong-Chen Qu
- Department of Urology,, Cancer Hospital of China Medical University (Liaoning Cancer Hospital and Institute), No. 44, Xiaoheyan Road, Dadong District, Shenyang, Liaoning Province, China
| | - Qing-Peng Xie
- Department of Urology,, Cancer Hospital of China Medical University (Liaoning Cancer Hospital and Institute), No. 44, Xiaoheyan Road, Dadong District, Shenyang, Liaoning Province, China
| | - Long-Feng Sun
- Department of Geriatric Cardiology, The First Hospital of China Medical University, No. 155, Nanjing North Street, Shenyang, Liaoning Province, China.
| | - Gang Li
- Department of Urology,, Cancer Hospital of China Medical University (Liaoning Cancer Hospital and Institute), No. 44, Xiaoheyan Road, Dadong District, Shenyang, Liaoning Province, China.
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Suur BE, Chemaly M, Lindquist Liljeqvist M, Djordjevic D, Stenemo M, Bergman O, Karlöf E, Lengquist M, Odeberg J, Hurt-Camejo E, Eriksson P, Ketelhuth DF, Roy J, Hedin U, Nyberg M, Matic L. Therapeutic potential of the Proprotein Convertase Subtilisin/Kexin family in vascular disease. Front Pharmacol 2022; 13:988561. [PMID: 36188622 PMCID: PMC9520287 DOI: 10.3389/fphar.2022.988561] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 08/23/2022] [Indexed: 11/13/2022] Open
Abstract
Proprotein convertase subtilisin/kexins (PCSKs) constitute a family of nine related proteases: PCSK1-7, MBTPS1, and PCSK9. Apart from PCSK9, little is known about PCSKs in cardiovascular disease. Here, we aimed to investigate the expression landscape and druggability potential of the entire PCSK family for CVD. We applied an integrative approach, combining genetic, transcriptomic and proteomic data from three vascular biobanks comprising carotid atherosclerosis, thoracic and abdominal aneurysms, with patient clinical parameters and immunohistochemistry of vascular biopsies. Apart from PCSK4, all PCSK family members lie in genetic regions containing variants associated with human cardiovascular traits. Transcriptomic analyses revealed that FURIN, PCSK5, MBTPS1 were downregulated, while PCSK6/7 were upregulated in plaques vs. control arteries. In abdominal aneurysms, FURIN, PCSK5, PCSK7, MBTPS1 were downregulated, while PCSK6 was enriched in diseased media. In thoracic aneurysms, only FURIN was significantly upregulated. Network analyses of the upstream and downstream pathways related to PCSKs were performed on the omics data from vascular biopsies, revealing mechanistic relationships between this protein family and disease. Cell type correlation analyses and immunohistochemistry showed that PCSK transcripts and protein levels parallel each other, except for PCSK9 where transcript was not detected, while protein was abundant in vascular biopsies. Correlations to clinical parameters revealed a positive association between FURIN plaque levels and serum LDL, while PCSK6 was negatively associated with Hb. PCSK5/6/7 were all positively associated with adverse cardiovascular events. Our results show that PCSK6 is abundant in plaques and abdominal aneurysms, while FURIN upregulation is characteristic for thoracic aneurysms. PCSK9 protein, but not the transcript, was present in vascular lesions, suggesting its accumulation from circulation. Integrating our results lead to the development of a novel ‘molecular’ 5D framework. Here, we conducted the first integrative study of the proprotein convertase family in this context. Our results using this translational pipeline, revealed primarily PCSK6, followed by PCSK5, PCSK7 and FURIN, as proprotein convertases with the highest novel therapeutic potential.
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Affiliation(s)
- Bianca E. Suur
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Melody Chemaly
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | | | - Djordje Djordjevic
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
- Global Research Technologies, Novo Nordisk A/S, Maaloev, Denmark
| | - Markus Stenemo
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Otto Bergman
- Department of Medicine, Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Eva Karlöf
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Mariette Lengquist
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Jacob Odeberg
- Department of Medicine, Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
- Science for Life Laboratory, Department of Proteomics, School of Biotechnology, Royal Institute of Technology, Stockholm, Sweden
| | - Eva Hurt-Camejo
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
- Biopharmaceutical R&D, AstraZeneca, Mölndal, Sweden
| | - Per Eriksson
- Department of Medicine, Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Daniel F.J. Ketelhuth
- Department of Medicine, Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
- Department of Cardiovascular and Renal Research, University of Southern Denmark, Odense, Denmark
| | - Joy Roy
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Ulf Hedin
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Michael Nyberg
- Global Drug Discovery, Novo Nordisk A/S, Maaloev, Denmark
| | - Ljubica Matic
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
- *Correspondence: Ljubica Matic,
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Ghajar-Rahimi G, Agarwal A. Endothelial KLF11 as a Nephroprotectant in AKI. KIDNEY360 2022; 3:1302-1305. [PMID: 36176668 PMCID: PMC9416841 DOI: 10.34067/kid.0003422022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 06/14/2022] [Indexed: 06/16/2023]
Affiliation(s)
- Gelare Ghajar-Rahimi
- Division of Nephrology, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama
- Nephrology Research and Training Center, University of Alabama at Birmingham, Birmingham, Alabama
- Division of Cardiothoracic Surgery, Department of Surgery, University of Alabama at Birmingham, Birmingham, Alabama
| | - Anupam Agarwal
- Division of Nephrology, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama
- Birmingham Veterans Administration Health Care Services, Birmingham, Alabama
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Li Y, Zhao X, Xu M, Chen M. Krüppel-like factors in glycolipid metabolic diseases. Mol Biol Rep 2022; 49:8145-8152. [PMID: 35585376 DOI: 10.1007/s11033-022-07565-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 04/29/2022] [Accepted: 05/04/2022] [Indexed: 12/18/2022]
Abstract
Krüppel-like factors (KLFs) are a family of transcription factors characterised by zinc-finger structures at the C-terminal. They play the key roles in cell proliferation, differentiation, and migration, as well as in embryonic development. They have been widely expressed in multiple systems in vivo, and their dysregulation is closely associated with a variety of human diseases. Glycolipid metabolism is a complex physiological process which can be regulated at the transcriptional level. Glycolipid metabolic diseases, such as obesity, non-alcoholic fatty liver disease, diabetes, and their complications, are a serious threat to human health. Recently, increasing studies have shown that KLFs are closely related to glycolipid metabolism and energy balance of the liver, adipose tissue, heart, skeletal muscle, lung, pancreas, and nervous system. In this review, we focused on the correlation between the subtypes of the KLF family and glycolipid metabolic diseases to describe new directions and trends in endocrine and glycolipid metabolic disease treatments.
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Affiliation(s)
- Yutong Li
- Department of Endocrinology, The First Affiliated Hospital of Anhui Medical University, No. 218 Jixi Road, 230032, Hefei, Anhui, China
| | - Xiaotong Zhao
- Department of Endocrinology, The First Affiliated Hospital of Anhui Medical University, No. 218 Jixi Road, 230032, Hefei, Anhui, China
| | - Murong Xu
- Department of Endocrinology, The First Affiliated Hospital of Anhui Medical University, No. 218 Jixi Road, 230032, Hefei, Anhui, China
| | - Mingwei Chen
- Department of Endocrinology, The First Affiliated Hospital of Anhui Medical University, No. 218 Jixi Road, 230032, Hefei, Anhui, China.
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Liang W, Lu H, Sun J, Zhao G, Wang H, Guo Y, Eitzman D, Chen YE, Fan Y, Zhang J. KLF11 Protects against Venous Thrombosis via Suppressing Tissue Factor Expression. Thromb Haemost 2022; 122:777-788. [PMID: 34428834 PMCID: PMC10468287 DOI: 10.1055/s-0041-1735191] [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] [Indexed: 10/20/2022]
Abstract
Krüppel-like factors (KLFs) play essential roles in multiple biological functions, including maintaining vascular homeostasis. KLF11, a causative gene for maturity-onset diabetes of the young type 7, inhibits endothelial activation and protects against stroke. However, the role of KLF11 in venous thrombosis remains to be explored. Utilizing stasis-induced murine deep vein thrombosis (DVT) model and cultured endothelial cells (ECs), we identified an increase of KLF11 expression under prothrombotic conditions both in vivo and in vitro. The expression change of thrombosis-related genes was determined by utilizing gain- and loss-of-function approaches to alter KLF11 expression in ECs. Among these genes, KLF11 significantly downregulated tumor necrosis factor-α (TNF-α)-induced tissue factor (TF) gene transcription. Using reporter gene assay, chromatin immunoprecipitation assay, and co-immunoprecipitation, we revealed that KLF11 could reduce TNF-α-induced binding of early growth response 1 (EGR1) to TF gene promoter in ECs. In addition, we demonstrated that conventional Klf11 knockout mice were more susceptible to developing stasis-induced DVT. These results suggest that under prothrombotic conditions, KLF11 downregulates TF gene transcription via inhibition of EGR1 in ECs. In conclusion, KLF11 protects against venous thrombosis, constituting a potential molecular target for treating thrombosis.
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Affiliation(s)
- Wenying Liang
- Department of Internal Medicine, Frankel Cardiovascular Center, University of Michigan Medical Center, Ann Arbor, Michigan, United States
- Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Michigan, Unites States
| | - Haocheng Lu
- Department of Internal Medicine, Frankel Cardiovascular Center, University of Michigan Medical Center, Ann Arbor, Michigan, United States
| | - Jinjian Sun
- Department of Internal Medicine, Frankel Cardiovascular Center, University of Michigan Medical Center, Ann Arbor, Michigan, United States
| | - Guizhen Zhao
- Department of Internal Medicine, Frankel Cardiovascular Center, University of Michigan Medical Center, Ann Arbor, Michigan, United States
| | - Huilun Wang
- Department of Internal Medicine, Frankel Cardiovascular Center, University of Michigan Medical Center, Ann Arbor, Michigan, United States
- Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Michigan, Unites States
| | - Yanhong Guo
- Department of Internal Medicine, Frankel Cardiovascular Center, University of Michigan Medical Center, Ann Arbor, Michigan, United States
| | - Daniel Eitzman
- Department of Internal Medicine, Frankel Cardiovascular Center, University of Michigan Medical Center, Ann Arbor, Michigan, United States
| | - Y Eugene Chen
- Department of Internal Medicine, Frankel Cardiovascular Center, University of Michigan Medical Center, Ann Arbor, Michigan, United States
| | - Yanbo Fan
- Department of Cancer Biology, University of Cincinnati College of Medicine, Cincinnati, Ohio, Unites States
- Division of Cardiovascular Health and Disease, Department of Internal Medicine, University of Cincinnati College of Medicine, Cincinnati, Ohio, Unites States
| | - Jifeng Zhang
- Department of Internal Medicine, Frankel Cardiovascular Center, University of Michigan Medical Center, Ann Arbor, Michigan, United States
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De Lorenzo SB, Vrieze AM, Johnson RA, Lien KR, Nath KA, Garovic VD, Khazaie K, Grande JP. KLF11 deficiency enhances chemokine generation and fibrosis in murine unilateral ureteral obstruction. PLoS One 2022; 17:e0266454. [PMID: 35413089 PMCID: PMC9004740 DOI: 10.1371/journal.pone.0266454] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 03/21/2022] [Indexed: 12/28/2022] Open
Abstract
Progression of virtually all forms of chronic kidney disease (CKD) is associated with activation of pro-inflammatory and pro-fibrotic signaling pathways. Despite extensive research, progress in identifying therapeutic targets to arrest or slow progression of CKD has been limited by incomplete understanding of basic mechanisms underlying renal inflammation and fibrosis in CKD. Recent studies have identified Kruppel-like transcription factors that have been shown to play critical roles in renal development, homeostasis, and response to injury. Although KLF11 deficiency has been shown to increase collagen production in vitro and tissue fibrosis in other organs, no previous study has linked KLF11 to the development of CKD. We sought to test the hypothesis that KLF11 deficiency promotes CKD through upregulation of pro-inflammatory and pro-fibrogenic signaling pathways in murine unilateral ureteral obstruction (UUO), a well-established model of renal fibrosis. We found that KLF11-deficiency exacerbates renal injury in the UUO model through activation of the TGF-β/SMAD signaling pathway and through activation of several pro-inflammatory chemokine signaling pathways. Based on these considerations, we conclude that agents increase KLF11 expression may provide novel therapeutic targets to slow the progression of CKD.
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Affiliation(s)
- Silvana B. De Lorenzo
- Department of Laboratory Medicine & Pathology, Mayo Clinic, Rochester, Minnesota, United States of America
| | - Alyssa M. Vrieze
- Department of Comparative Medicine, Mayo Clinic, Rochester, Minnesota, United States of America
| | - Ruth A. Johnson
- Department of Laboratory Medicine & Pathology, Mayo Clinic, Rochester, Minnesota, United States of America
| | - Karen R. Lien
- Department of Laboratory Medicine & Pathology, Mayo Clinic, Rochester, Minnesota, United States of America
| | - Karl A. Nath
- Division of Nephrology & Hypertension, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota, United States of America
| | - Vesna D. Garovic
- Division of Nephrology & Hypertension, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota, United States of America
| | - Khashayarsha Khazaie
- Department of Immunology, Mayo Clinic, Rochester, Minnesota, United States of America
| | - Joseph P. Grande
- Department of Laboratory Medicine & Pathology, Mayo Clinic, Rochester, Minnesota, United States of America
- * E-mail:
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10
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Herault S, Naser J, Carassiti D, Chooi KY, Nikolopoulou R, Font ML, Patel M, Pedrigi R, Krams R. Mechanosensitive pathways are regulated by mechanosensitive miRNA clusters in endothelial cells. Biophys Rev 2021; 13:787-796. [PMID: 34777618 PMCID: PMC8555030 DOI: 10.1007/s12551-021-00839-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 08/27/2021] [Indexed: 12/15/2022] Open
Abstract
Shear stress is known to affect many processes in (patho-) physiology through a complex, multi-molecular mechanism, termed mechanotransduction. The sheer complexity of the process has raised questions how mechanotransduction is regulated. Here, we comprehensively evaluate the literature about the role of small non-coding miRNA in the regulation of mechanotransduction. Regulation of mRNA by miRNA is rather complex, depending not only on the concentration of mRNA to miRNA, but also on the amount of mRNA competing for a single mRNA. The only mechanism to counteract the latter factor is through overarching structures of miRNA. Indeed, two overarching structures are present miRNA families and miRNA clusters, and both will be discussed in details, regarding the latest literature and a previous conducted study focussed on mechanotransduction. Both the literature and our own data support a new hypothesis that miRNA-clusters predominantly regulate mechanotransduction, affecting 65% of signalling pathways. In conclusion, a new and important mode of regulation of mechanotransduction is proposed, based on miRNA clusters. This finding implicates new avenues for treatment of mechanotransduction and atherosclerosis.
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Affiliation(s)
- Sean Herault
- School of Engineering and Materials Science, Queen Mary University of London, Room 2.14, London, UK
| | | | - Daniele Carassiti
- School of Engineering and Materials Science, Queen Mary University of London, Room 2.14, London, UK
| | - K. Yean Chooi
- School of Engineering and Materials Science, Queen Mary University of London, Room 2.14, London, UK
| | | | - Marti Llopart Font
- School of Engineering and Materials Science, Queen Mary University of London, Room 2.14, London, UK
| | | | - Ryan Pedrigi
- College of Engineering, Mechanical & Materials Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
| | - Rob Krams
- School of Engineering and Materials Science, Queen Mary University of London, Room 2.14, London, UK
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11
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Nicoleau S, Fellows A, Wojciak-Stothard B. Role of Krüppel-like factors in pulmonary arterial hypertension. Int J Biochem Cell Biol 2021; 134:105977. [PMID: 33839307 DOI: 10.1016/j.biocel.2021.105977] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Revised: 03/16/2021] [Accepted: 04/05/2021] [Indexed: 02/04/2023]
Abstract
Pulmonary arterial hypertension is a rare but deadly disease with a complex pathogenesis. Recent evidence demonstrates that Krüppel-like factors, a diverse family of transcription factors, are involved in several key disease processes such as the phenotypic transition of endothelial cells and smooth muscle cells. Importantly, manipulation of certain Krüppel-like factors enables protection or attenuation against pulmonary arterial hypertension in both animal models and preliminary human studies. In this review, we discuss how Krüppel-like factors, in particular Krüppel-like factors 2, 4 and 5 contribute to the pathological phenomena seen in pulmonary arterial hypertension and how associated signaling and microRNA pathways may be suitable targets for new therapies.
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Affiliation(s)
- Salina Nicoleau
- National Heart and Lung Institute, Imperial College London, Hammersmith Campus, Du Cane Road, W12 0NN, London, United Kingdom
| | - Adam Fellows
- National Heart and Lung Institute, Imperial College London, Hammersmith Campus, Du Cane Road, W12 0NN, London, United Kingdom
| | - Beata Wojciak-Stothard
- National Heart and Lung Institute, Imperial College London, Hammersmith Campus, Du Cane Road, W12 0NN, London, United Kingdom.
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12
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Zhao G, Chang Z, Zhao Y, Guo Y, Lu H, Liang W, Rom O, Wang H, Sun J, Zhu T, Fan Y, Chang L, Yang B, Garcia-Barrio MT, Chen YE, Zhang J. KLF11 protects against abdominal aortic aneurysm through inhibition of endothelial cell dysfunction. JCI Insight 2021; 6:141673. [PMID: 33507881 PMCID: PMC8021107 DOI: 10.1172/jci.insight.141673] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Accepted: 01/27/2021] [Indexed: 12/13/2022] Open
Abstract
Abdominal aortic aneurysm (AAA) is a life-threatening degenerative vascular disease. Endothelial cell (EC) dysfunction is implicated in AAA. Our group recently demonstrated that Krüppel-like factor 11 (KLF11) plays an essential role in maintaining vascular homeostasis, at least partially through inhibition of EC inflammatory activation. However, the functions of endothelial KLF11 in AAA remain unknown. Here we found that endothelial KLF11 expression was reduced in the ECs from human aneurysms and was time dependently decreased in the aneurysmal endothelium from both elastase- and Pcsk9/AngII-induced AAA mouse models. KLF11 deficiency in ECs markedly aggravated AAA formation, whereas EC-selective KLF11 overexpression markedly inhibited AAA formation. Mechanistically, KLF11 not only inhibited the EC inflammatory response but also diminished MMP9 expression and activity and reduced NADPH oxidase 2-mediated production of reactive oxygen species in ECs. In addition, KLF11-deficient ECs induced smooth muscle cell dedifferentiation and apoptosis. Overall, we established endothelial KLF11 as a potentially novel factor protecting against AAA and a potential target for intervention in aortic aneurysms.
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Affiliation(s)
- Guizhen Zhao
- Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Ziyi Chang
- Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan, USA
- Department of Pathology, China-Japan Friendship Hospital, Beijing, China
| | - Yang Zhao
- Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Yanhong Guo
- Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Haocheng Lu
- Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Wenying Liang
- Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Oren Rom
- Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Huilun Wang
- Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Jinjian Sun
- Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan, USA
- Department of Cardiovascular Medicine, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Tianqing Zhu
- Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Yanbo Fan
- Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan, USA
- Department of Cancer Biology, College of Medicine, University of Cincinnati, Cincinnati, Ohio. USA
| | - Lin Chang
- Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Bo Yang
- Department of Cardiac Surgery, University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Minerva T. Garcia-Barrio
- Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Y. Eugene Chen
- Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan, USA
- Department of Cardiac Surgery, University of Michigan Medical Center, Ann Arbor, Michigan, USA
| | - Jifeng Zhang
- Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan, USA
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13
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Li X, Sim MMS, Wood JP. Recent Insights Into the Regulation of Coagulation and Thrombosis. Arterioscler Thromb Vasc Biol 2020; 40:e119-e125. [PMID: 32320291 DOI: 10.1161/atvbaha.120.312674] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Xian Li
- From the Saha Cardiovascular Research Center (X.L., J.P.W.), University of Kentucky, Lexington
| | - Martha M S Sim
- Department of Molecular and Cellular Biochemistry (M.M.S.S., J.P.W.), University of Kentucky, Lexington
| | - Jeremy P Wood
- From the Saha Cardiovascular Research Center (X.L., J.P.W.), University of Kentucky, Lexington.,Department of Molecular and Cellular Biochemistry (M.M.S.S., J.P.W.), University of Kentucky, Lexington.,Division of Cardiovascular Medicine (J.P.W.), University of Kentucky, Lexington
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14
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Zhang X, Tang X, Ma F, Fan Y, Sun P, Zhu T, Zhang J, Hamblin MH, Chen YE, Yin KJ. Endothelium-targeted overexpression of Krüppel-like factor 11 protects the blood-brain barrier function after ischemic brain injury. Brain Pathol 2020; 30:746-765. [PMID: 32196819 DOI: 10.1111/bpa.12831] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 02/07/2020] [Accepted: 03/15/2020] [Indexed: 12/22/2022] Open
Abstract
Microvascular endothelial cell (EC) injury and the subsequent blood-brain barrier (BBB) breakdown are frequently seen in many neurological disorders, including stroke. We have previously documented that peroxisome proliferator-activated receptor gamma (PPARγ)-mediated cerebral protection during ischemic insults needs Krüppel-like factor 11 (KLF11) as a critical coactivator. However, the role of endothelial KLF11 in cerebrovascular function and stroke outcome is unclear. This study is aimed at investigating the regulatory role of endothelial KLF11 in BBB preservation and neurovascular protection after ischemic stroke. EC-targeted overexpression of KLF11 significantly mitigated BBB leakage in ischemic brains, evidenced by significantly reduced extravasation of BBB tracers and infiltration of peripheral immune cells, and less brain water content. Endothelial cell-selective KLF11 transgenic (EC-KLF11 Tg) mice also exhibited smaller brain infarct and improved neurological function in response to ischemic insults. Furthermore, EC-targeted transgenic overexpression of KLF11 preserved cerebral tight junction (TJ) levels and attenuated the expression of pro-inflammatory factors in mice after ischemic stroke. Mechanistically, we demonstrated that KLF11 directly binds to the promoter of major endothelial TJ proteins including occludin and ZO-1 to promote their activities. Our data indicate that KLF11 functions at the EC level to preserve BBB structural and functional integrity, and therefore, confers brain protection in ischemic stroke. KLF11 may be a novel therapeutic target for the treatment of ischemic stroke and other neurological conditions involving BBB breakdown and neuroinflammation.
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Affiliation(s)
- Xuejing Zhang
- Pittsburgh Institute of Brain Disorders & Recovery, Department of Neurology, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15213
| | - Xuelian Tang
- Pittsburgh Institute of Brain Disorders & Recovery, Department of Neurology, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15213
| | - Feifei Ma
- Pittsburgh Institute of Brain Disorders & Recovery, Department of Neurology, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15213
| | - Yanbo Fan
- Cardiovascular Center, Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, MI, 48109
| | - Ping Sun
- Pittsburgh Institute of Brain Disorders & Recovery, Department of Neurology, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15213
| | - Tianqing Zhu
- Cardiovascular Center, Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, MI, 48109
| | - Jifeng Zhang
- Cardiovascular Center, Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, MI, 48109
| | - Milton H Hamblin
- Department of Pharmacology, Tulane University School of Medicine, 1430 Tulane Avenue SL83, New Orleans, LA, 70112
| | - Y Eugene Chen
- Cardiovascular Center, Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, MI, 48109
| | - Ke-Jie Yin
- Pittsburgh Institute of Brain Disorders & Recovery, Department of Neurology, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15213.,Geriatric Research, Education and Clinical Center, Veterans Affairs Pittsburgh Healthcare System, Pittsburgh, PA, 15261
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15
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Lewis CS, Bogdanov VY. KLF11 (Krüppel-Like Factor 11) Modulates Arterial Thrombosis. Arterioscler Thromb Vasc Biol 2019; 39:309-310. [PMID: 30811250 DOI: 10.1161/atvbaha.119.312368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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