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Huang Y, Pan W, Ma J. SKP2-mediated ubiquitination and degradation of KLF11 promotes osteoarthritis via modulation of JMJD3/NOTCH1 pathway. FASEB J 2024; 38:e23640. [PMID: 38690715 DOI: 10.1096/fj.202300664rr] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 03/28/2024] [Accepted: 04/18/2024] [Indexed: 05/02/2024]
Abstract
Osteoarthritis (OA) is the main cause of cartilage damage and disability. This study explored the biological function of S-phase kinase-associated protein 2 (SKP2) and Kruppel-like factor 11 (KLF11) in OA progression and its underlying mechanisms. C28/I2 chondrocytes were stimulated with IL-1β to mimic OA in vitro. We found that SKP2, Jumonji domain-containing protein D3 (JMJD3), and Notch receptor 1 (NOTCH1) were upregulated, while KLF11 was downregulated in IL-1β-stimulated chondrocytes. SKP2/JMJD3 silencing or KLF11 overexpression repressed apoptosis and extracellular matrix (ECM) degradation in chondrocytes. Mechanistically, SKP2 triggered the ubiquitination and degradation of KLF11 to transcriptionally activate JMJD3, which resulted in activation of NOTCH1 through inhibiting H3K27me3. What's more, the in vivo study found that KLF11 overexpression delayed OA development in rats via restraining apoptosis and maintaining the balance of ECM metabolism. Taken together, ubiquitination and degradation of KLF11 regulated by SKP2 contributed to OA progression by activation of JMJD3/NOTCH1 pathway. Our findings provide promising therapeutic targets for OA.
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Affiliation(s)
- Yuanchi Huang
- Department of Joint Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi Province, P. R. China
| | - Wenjie Pan
- Department of Joint Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi Province, P. R. China
| | - Jianbing Ma
- Department of Joint Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi Province, P. R. China
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Li Y, Yan J, Sun H, Liang Y, Zhao Q, Yu S, Zhang Y. Ferroptosis inhibitor alleviates sorafenib-induced cardiotoxicity by attenuating KLF11-mediated FSP1-dependent ferroptosis. Int J Biol Sci 2024; 20:2622-2639. [PMID: 38725840 PMCID: PMC11077382 DOI: 10.7150/ijbs.86479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 04/17/2024] [Indexed: 05/12/2024] Open
Abstract
Sorafenib is a standard first-line drug for advanced hepatocellular carcinoma, but the serious cardiotoxic effects restrict its therapeutic applicability. Here, we show that iron-dependent ferroptosis plays a vital role in sorafenib-induced cardiotoxicity. Remarkably, our in vivo and in vitro experiments demonstrated that ferroptosis inhibitor application neutralized sorafenib-induced heart injury. By analyzing transcriptome profiles of adult human sorafenib-treated cardiomyocytes, we found that Krüppel-like transcription factor 11 (KLF11) expression significantly increased after sorafenib stimulation. Mechanistically, KLF11 promoted ferroptosis by suppressing transcription of ferroptosis suppressor protein 1 (FSP1), a seminal breakthrough due to its ferroptosis-repressing properties. Moreover, FSP1 knockdown showed equivalent results to glutathione peroxidase 4 (GPX4) knockdown, and FSP1 overexpression counteracted GPX4 inhibition-induced ferroptosis to a substantial extent. Cardiac-specific overexpression of FSP1 and silencing KLF11 by an adeno-associated virus serotype 9 markedly improved cardiac dysfunction in sorafenib-treated mice. In summary, FSP1-mediated ferroptosis is a crucial mechanism for sorafenib-provoked cardiotoxicity, and targeting ferroptosis may be a promising therapeutic strategy for alleviating sorafenib-induced cardiac damage.
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Affiliation(s)
- Yilan Li
- Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China
- Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin Medical University, Harbin 150086, China
| | - Jingru Yan
- Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China
- Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin Medical University, Harbin 150086, China
| | - Heng Sun
- Cancer Centre, Faculty of Health Sciences, University of Macau, Macau, China
- Ministry of Education Frontiers Science Center for Precision Oncology, University of Macau, Macau, China
| | - Yating Liang
- Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China
- Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin Medical University, Harbin 150086, China
| | - Qianqian Zhao
- Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China
- Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin Medical University, Harbin 150086, China
| | - Shan Yu
- Department of Pathology, the Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China
| | - Yao Zhang
- Department of Cardiology, the Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China
- Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin Medical University, Harbin 150086, China
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Xi J, Zhang M, Zhang Y, Zhang C, Zhang Y, Wang R, Shen L, Li J, Song X. [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 2024; 44:765-772. [PMID: 38708511 DOI: 10.12122/j.issn.1673-4254.2024.04.19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [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)
- J Xi
- Bengbu Medical University, Bengbu 233000, China
| | - M Zhang
- Bengbu Medical University, Bengbu 233000, China
- Clinical Laboratory, First Affiliated Hospital of Bengbu Medical University, Bengbu 233000, China
| | - Y Zhang
- Bengbu Medical University, Bengbu 233000, China
| | - C Zhang
- Bengbu Medical University, Bengbu 233000, China
| | - Y Zhang
- Bengbu Medical University, Bengbu 233000, China
| | - R Wang
- Bengbu Medical University, Bengbu 233000, China
| | - L Shen
- Bengbu Medical University, Bengbu 233000, China
| | - J Li
- Clinical Laboratory, First Affiliated Hospital of Bengbu Medical University, Bengbu 233000, China
- Anhui Province Key Laboratory of Basic and Translational Research of inflammation-related Diseases, First Affiliated Hospital of Bengbu Medical University, Bengbu 233000, China
| | - X Song
- Central Laboratory, First Affiliated Hospital of Bengbu Medical University, Bengbu 233000, China
- Anhui 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] [What about the content of this article? (0)] [Affiliation(s)] [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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Zhang W, Zhao T, Gao X, Ma S, Gong T, Yang Y, Li M, Cao G, Guo X, Li B. miR-10a-5p Regulates the Proliferation and Differentiation of Porcine Preadipocytes Targeting the KLF11 Gene. Animals (Basel) 2024; 14:337. [PMID: 38275797 PMCID: PMC10812476 DOI: 10.3390/ani14020337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 01/15/2024] [Accepted: 01/16/2024] [Indexed: 01/27/2024] Open
Abstract
In the swine industry, meat quality, color, and texture are influenced by the excessive differentiation of fat cells. miRNAs have emerged as integral regulators of adipose development. This study delves into the influence of miR-10a-5b on the proliferation and differentiation of pig preadipocytes. Our findings reveal that miR-10a-5b is prevalent across various tissues. It hinders preadipocyte proliferation, amplifies the expression of adipogenic genes, promotes lipid accumulation, and, as a result, advances preadipocyte differentiation. We predict that KLF11 is the target gene of miRNA. A dual-fluorescence reporter assay was conducted to validate the binding sites of miR-10a-5b on the 3'UTR of the KLF11 mRNA. Results showed that miR-10a-5b targeted KLF11 3'UTR and reduced the fluorescence activity of the dual-fluorescent reporter vector. Our research also indicates that miR-10a-5b targets and downregulates the expression of both mRNA and the protein levels of KLF11. During the differentiation of the preadipocytes, KLF11 inhibited adipose differentiation and was able to suppress the promotion of adipose differentiation by miR-10a-5b. This underscores miR-10a-5b's potential as a significant regulator of preadipocyte behavior by modulating KLF11 expression, offering insights into the role of functional miRNAs in fat deposition.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Xiaohong Guo
- College of Animal Science, Shanxi Agricultural University, Jinzhong 030801, China; (W.Z.); (T.Z.); (X.G.); (S.M.); (T.G.); (Y.Y.); (M.L.); (G.C.)
| | - Bugao Li
- College of Animal Science, Shanxi Agricultural University, Jinzhong 030801, China; (W.Z.); (T.Z.); (X.G.); (S.M.); (T.G.); (Y.Y.); (M.L.); (G.C.)
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Mancera-Rincón P, Luna-España MC, Rincon O, Guzmán I, Alvarez M. Maturity-onset Diabetes of the Young Type 7 (MODY7) and the Krüppellike Factor 11 Mutation (KLF11). A Review. Curr Diabetes Rev 2024; 20:e210323214817. [PMID: 36944622 DOI: 10.2174/1573399819666230321114456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 01/04/2023] [Accepted: 01/17/2023] [Indexed: 03/23/2023]
Abstract
INTRODUCTION Maturity-onset diabetes of the young (MODY) is a rare disease due to a single gene mutation that affects several family members in most cases. The Krüppel-like factor 11 (KLF11) gene mutation is associated with decreased insulin sensitivity to high glucose levels. KLF 11 has been implicated in the pathogenesis of MODY type 7 but given its low prevalence, prolonged subclinical period, and the emergence of new information, doubts are raised about its association. METHODS A literature search of the PubMed, Scopus, and EBSCO databases was performed. The terms "Diabetes Mellitus, Type 2/genetics", "Mason-Type Diabetes" , "Maturity-Onset diabetes of the young", "KLF11 protein, human", and "Maturity-Onset Diabetes of the Young, Type 7" were used"., "Diagnosis" The search selection was not standardized. RESULTS The KLF1 mutation is rare and represents <1% of the mutations associated with monogenic diabetes. Its isolation in European family lines in the first studies and the emergence of new variants pose new diagnostic challenges. This article reviews the definition, epidemiology, pathophysiology, diagnosis, and treatment of MODY type 7. CONCLUSION MODY type 7 diabetes represents a rare form of monogenic diabetes with incomplete penetrance. Given its rarity, its association with impaired glucose metabolism has been questioned. Strict evaluation of glycemic control and the appearance of microvascular complications are key areas in the follow-up of patients diagnosed with MODY 7. More studies will be required to characterize the population with KLF11 mutation and clarify its correlation with MODY.
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Affiliation(s)
| | | | - Oswaldo Rincon
- Endocronology Department, Hospital Militar Central, Bogota, Colombia
| | - Issac Guzmán
- Endocronology Department, Hospital Militar Central, Bogota, Colombia
| | - Mauricio Alvarez
- Endocronology Department, Hospital Militar Central, Bogota, Colombia
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Deng C, Ye C, Liao X, Zhou F, Shi Y, Zhong H, Huang J. KMT2A maintains stemness of gastric cancer cells through regulating Wnt/β-catenin signaling-activated transcriptional factor KLF11. Open Med (Wars) 2023; 18:20230764. [PMID: 38025523 PMCID: PMC10655684 DOI: 10.1515/med-2023-0764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 06/30/2023] [Accepted: 07/03/2023] [Indexed: 12/01/2023] Open
Abstract
The molecular mechanisms of epigenetic regulation in gastric cancer development are not yet well established. In this study, we demonstrated that KMT2A was highly expressed in gastric cancer and associated with poor outcomes of patients and revealed that KMT2A was significantly associated with stemness and increased nuclear β-catenin in gastric cancer. Mechanistically, KMT2A activated the translocation of β-catenin into the nucleus of gastric cancer cells, and then, β-catenin served as a coactivator of KLF11, which promoted the expression of specific gastric cancer stemness-related molecules, including SOX2 and FOXM1. Together, KMT2A is an important epigenetic regulator of gastric cancer stemness, which provides a novel insight to the potential application of targeting against KMT2A in treating gastric cancer.
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Affiliation(s)
- Chongwen Deng
- Department of General Surgery, Loudi Central Hospital, No. 51, Changqing Middle Street, Loudi, 417000, People’s Republic of China
| | - Chunhua Ye
- Department of General Surgery, Loudi Central Hospital, Loudi, 417000, People’s Republic of China
| | - Xiwang Liao
- Department of General Surgery, Loudi Central Hospital, Loudi, 417000, People’s Republic of China
| | - Fuyin Zhou
- Department of General Surgery, Loudi Central Hospital, Loudi, 417000, People’s Republic of China
| | - Youxiong Shi
- Department of General Surgery, Loudi Central Hospital, Loudi, 417000, People’s Republic of China
| | - Hong Zhong
- Department of General Surgery, Loudi Central Hospital, Loudi, 417000, People’s Republic of China
| | - Junbiao Huang
- Department of General Surgery, Loudi Central Hospital, Loudi, 417000, People’s Republic of 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] [What about the content of this article? (0)] [Affiliation(s)] [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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Grande J, Jones TL, Sun Z, Chanana P, Jaiswal I, Leontovich A, Carapanceanu N, Carapanceanu V, Saadalla A, Osman A, Famuyide AO, Daftary GS, Khan Z, Khazaie K. Host immunity and KLF 11 deficiency together promote fibrosis in a mouse model of endometriosis. Biochim Biophys Acta Mol Basis Dis 2023; 1869:166784. [PMID: 37321514 DOI: 10.1016/j.bbadis.2023.166784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 06/05/2023] [Accepted: 06/05/2023] [Indexed: 06/17/2023]
Abstract
BACKGROUND Endometriosis is a debilitating disease typically characterized by prolific fibrotic scarring. Earlier we reported downregulation of two transcription factors belonging TGF-βR signaling pathway Sp/Krüppel-like factor 11 (KLF11) and 10 (KLF10) in human endometriosis lesions. Here we investigated the role of these nuclear factors and immunity in the scaring fibrosis associated with endometriosis. METHODS We used a well characterized experimental mouse model of endometriosis. WT, KLF10 or KLF11 deficient mice were compared. The lesions were evaluated histologically, fibrosis was quantified with Masons' Trichome staining, immune-infiltrates were quantified by immunohistochemistry, peritoneal adhesions were score, gene expression was evaluated by bulk RNA sequencing. RESULTS Intense fibrotic reactions and large changes in gene expression were detected in KLF11 deficient implants associated with squamous metaplasia of the ectopic endometrium, as compared to KLF10 deficient or WT implants. Fibrosis was mitigated with pharmacologic agents that blocked histone acetylation or TGF-βR signaling or with genetic deficiency for SMAD3. The lesions were richly infiltrated with T-cells, regulatory T-cells, and innate immune cells. Fibrosis was exacerbated when implants expressed ectopic genes implicating autoimmunity as a major factor contributing to the scaring fibrosis. CONCLUSIONS Our findings identify KLF11 and TGF-βR signaling as cell intrinsic mechanisms and autoimmune responses as cell extrinsic mechanisms of scaring fibrosis in ectopic endometrium lesions. GENERAL SIGNIFICANCE Immunological factors associated with inflammation and tissue repair drive scaring fibrosis in experimental endometriosis, providing the rationale for immune therapy of endometriosis.
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Affiliation(s)
- Joseph Grande
- Department of Laboratory Medicine and Pathology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, United States of America
| | - Tiffanny L Jones
- Department of Obstetrics and Gynecology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, United States of America
| | - Zhifu Sun
- Department of Quantitative Health Sciences, Division of Computational Biology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, United States of America
| | - Pritha Chanana
- Department of Quantitative Health Sciences, Division of Computational Biology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, United States of America
| | - Indu Jaiswal
- Department of Immunology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, United States of America
| | - Alexey Leontovich
- Department of Quantitative Health Sciences, Division of Computational Biology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, United States of America
| | - Nicoletta Carapanceanu
- Department of Immunology, Mayo Clinic, CRB, 2-221, 13400 E. Shea Blvd., Scottsdale, AZ 85259, United States of America
| | - Valentin Carapanceanu
- Department of Immunology, Mayo Clinic, CRB, 2-221, 13400 E. Shea Blvd., Scottsdale, AZ 85259, United States of America
| | - Abdulrahman Saadalla
- Department of Immunology, Mayo Clinic, CRB, 2-221, 13400 E. Shea Blvd., Scottsdale, AZ 85259, United States of America
| | - Abu Osman
- Department of Immunology, Mayo Clinic, CRB, 2-221, 13400 E. Shea Blvd., Scottsdale, AZ 85259, United States of America
| | - Abimbola O Famuyide
- Department of Obstetrics and Gynecology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, United States of America
| | - Gaurang S Daftary
- Department of Obstetrics and Gynecology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, United States of America.
| | - Zaraq Khan
- Department of Obstetrics and Gynecology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, United States of America.
| | - Khashayarsha Khazaie
- Department of Immunology, Mayo Clinic, CRB, 2-221, 13400 E. Shea Blvd., Scottsdale, AZ 85259, United States of America.
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Lin L, Pfender K, Ditsch N, Kuhn C, Rahmeh M, Peng L, Schmoeckel E, Mayr D, Trillsch F, Mahner S, Kessler M, Jeschke U, Hester A. KLF11 is an independent negative prognostic factor for breast cancer from a cohort study and induces proliferation and inhibits apoptosis in vitro. Breast Cancer 2023; 30:758-771. [PMID: 37199905 PMCID: PMC10404175 DOI: 10.1007/s12282-023-01470-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 05/10/2023] [Indexed: 05/19/2023]
Abstract
BACKGROUND The therapy concepts that target several members of krüppel like factor (KLF) family have been achieved in breast cancer (BC). However, the role of KLF11 in BC remains unclear. This study explored the prognostic significance of KLF11 in BC patients and investigated its functional roles in this malignancy. METHODS Immunohistochemistry (IHC) staining of KLF11 in 298 patients' samples was performed to determine the prognostic role of the KLF11. Then the protein level was correlated to clinicopathological characteristics and survival outcomes. Afterward, the function of KLF11 was explored in vitro with siRNA-mediated loss-of-function of cell viability, proliferation, and apoptosis. RESULTS From the cohort study, we found that the expression of KLF11 was positively associated with highly proliferative BC of BC. Furthermore, prognostic analysis demonstrated that KLF11 was an independent negative factor for disease-free survival (DFS) and distant-metastasis-free survival (DMFS) of BC. The KLF11-related prognostic model for DFS and DMFS showed high accuracy in predicting the 3-,5- and 10 -year survival probability of BC patients. Additionally, the knockdown of KLF11 inhibited cell viability and proliferation, as well as induced cell apoptosis in MCF7 and MDA-MB-231 cells, while only inhibited cell viability and induced cell apoptosis in SK-BR-3 cells. CONCLUSIONS Our study indicated that targeting KLF11 is an interesting therapeutic concept and further research could lead to a new therapeutic improvement in BC, especially in highly aggressive molecular subtypes.
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Affiliation(s)
- Lili Lin
- Department of Obstetrics and Gynecology, University Hospital, LMU Munich, Marchioninistr. 15, 81377, Munich, Germany
| | - Kristina Pfender
- Department of Obstetrics and Gynecology, University Hospital, LMU Munich, Marchioninistr. 15, 81377, Munich, Germany
| | - Nina Ditsch
- Department of Gynecology and Obstetrics, University Hospital Augsburg, 86156, Augsburg, Germany
| | - Christina Kuhn
- Department of Gynecology and Obstetrics, University Hospital Augsburg, 86156, Augsburg, Germany
| | - Martina Rahmeh
- Department of Obstetrics and Gynecology, University Hospital, LMU Munich, Marchioninistr. 15, 81377, Munich, Germany
| | - Lin Peng
- Department of Obstetrics and Gynecology, University Hospital, LMU Munich, Marchioninistr. 15, 81377, Munich, Germany
| | - Elisa Schmoeckel
- Department of Pathology, Ludwig-Maximilians University of Munich, 81337, Munich, Germany
| | - Doris Mayr
- Department of Pathology, Ludwig-Maximilians University of Munich, 81337, Munich, Germany
| | - Fabian Trillsch
- Department of Obstetrics and Gynecology, University Hospital, LMU Munich, Marchioninistr. 15, 81377, Munich, Germany
| | - Sven Mahner
- Department of Obstetrics and Gynecology, University Hospital, LMU Munich, Marchioninistr. 15, 81377, Munich, Germany
| | - Mirjana Kessler
- Department of Obstetrics and Gynecology, University Hospital, LMU Munich, Marchioninistr. 15, 81377, Munich, Germany
| | - Udo Jeschke
- Department of Obstetrics and Gynecology, University Hospital, LMU Munich, Marchioninistr. 15, 81377, Munich, Germany.
- Department of Gynecology and Obstetrics, University Hospital Augsburg, 86156, Augsburg, Germany.
| | - Anna Hester
- Department of Obstetrics and Gynecology, University Hospital, LMU Munich, Marchioninistr. 15, 81377, Munich, Germany
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11
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Wu S, Zhang G, Liu L, Wu W, Luo X. A novel KLF11 variant in a family with maturity-onset diabetes of the young. Pediatr Diabetes 2022; 23:597-603. [PMID: 35689450 DOI: 10.1111/pedi.13384] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 05/16/2022] [Accepted: 06/07/2022] [Indexed: 11/28/2022] Open
Abstract
OBJECTIVE The Krüppel-like factor 11 (KLF11) gene causes maturity-onset diabetes of the young 7 (MODY7). There are few reports on the clinical and functional characteristics of KLF11 mutations in patients with MODY7, making diagnosis and treatment complicated. RESEARCH DESIGN AND METHODS We report a novel KLF11 variant associated with MODY7 in a Chinese family. The proband had hyperglycemia at 9 years of age, and his mother had developed diabetes at age 28 years. Both required insulin injections from the initial phase of the disease. They were negative for islet cell autoantibodies and had normal fasting C-peptide levels. We observed changes in the levels of fasting blood glucose, C-peptide, and islet cell autoantibodies in the proband over 4.5 years. RESULTS Whole-exon sequencing was used to screen the proband and his family members for KLF11 variants. The heterozygous KLF11 variant (c.1045C>T, p. Pro349Ser) was identified in the proband, his mother, his maternal grandmother, and an elderly aunt, although the latter two individuals were unaffected. In silico analyses indicated that this variant involved a change in the amino acid side chain in the transcriptional regulatory domain 3. Luciferase reporter assays revealed that the variant had impaired insulin promoter regulation activity. Moreover, in vitro analyses showed that this variant impaired insulin secretion from pancreatic beta cells. CONCLUSIONS This study documents a novel heterozygous KLF11 variant (p. Pro349Ser) as a potential monogenic mutation associated with MODY7 in a family. This variant impairs insulin secretion from pancreatic beta cells, possibly by repressing insulin promoter regulation activity.
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Affiliation(s)
- Shimin Wu
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Guijiao Zhang
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Li Liu
- Department of Endocrinology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wei Wu
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaoping Luo
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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12
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Liu J, Liang Y, Qiao L, Xia D, Pan Y, Liu W. MiR-128-1-5p regulates differentiation of ovine stromal vascular fraction by targeting the KLF11 5'-UTR. Domest Anim Endocrinol 2022; 80:106711. [PMID: 35338828 DOI: 10.1016/j.domaniend.2022.106711] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 01/25/2022] [Accepted: 02/01/2022] [Indexed: 11/22/2022]
Abstract
Fat content is an important index to evaluate the individual performance of livestock animals such as sheep for meat production purposes. Reducing the subcutaneous and visceral fat while increasing the intramuscular fat is a valuable goal to achieve for the meat production industry. Here, we investigated the effect of miR-128-1-5p on adipogenesis of subcutaneous fat by targeting 5'-UTR in KLF11, a rare mechanism where most miRNAs bind the 3'-UTR of mRNAs. A dual fluorescence reporter assay was conducted to validate the binding sites of miR-128-1-5p on 5'-UTR of KLF11 mRNA. Roles of miR-128-1-5p in KLF11 expression were measured through co-transfecting miRNA mimics with KLF11-expressing vectors (CDSs together with or without the 5'-UTR) into ovine stromal vascular fractions (SVF). Additionally, functional roles of miR-128-1-5p, and KLF11 in adipogenesis of ovine subcutaneous fat were investigated. Results showed that miR-128-1-5p targeted KLF11 5'-UTR, reduced the fluorescence activity of the dual fluorescent reporter vector, as well as KLF11 mRNA, and protein expression levels. During the differentiation of SVF, disturbing the expression of miR-128-1-5p and KLF11 changed the adipogenic differentiation of SVF as observed in the lipid formation, and adipogenic marker genes. This study indicates that miR-128-1-5p promotes the expression of lipogenic marker genes and the formation of lipid droplets by targeting KLF11 5'-UTR. Furthermore, overexpression, and inhibition of KLF11 indicate that KLF11 inhibited SVF differentiation. In summary, the 5'-UTR binding mechanism discovered in this study extends the understanding of miRNA functions. Key roles of miR-128-1-5p and KLF11 in the adipogenesis of sheep subcutaneous fat have potential values for improving the meat and/or fat ratio of domestic animals.
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Affiliation(s)
- Jianhua Liu
- College of Animal Science, Shanxi Agricultural University, Taigu 030801, China
| | - Yu Liang
- College of Animal Science, Shanxi Agricultural University, Taigu 030801, China
| | - Liying Qiao
- College of Animal Science, Shanxi Agricultural University, Taigu 030801, China
| | - Dong Xia
- Royal Veterinary College, University of London, London NW1 0TU, UK
| | - Yangyang Pan
- College of Animal Science, Shanxi Agricultural University, Taigu 030801, China
| | - Wenzhong Liu
- College of Animal Science, Shanxi Agricultural University, Taigu 030801, China.
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13
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Nath KA, Singh RD, Croatt AJ, Ackerman AW, Grande JP, Khazaie K, Chen YE, Zhang J. KLF11 Is a Novel Endogenous Protectant against Renal Ischemia-Reperfusion Injury. Kidney360 2022; 3:1417-1422. [PMID: 36176648 PMCID: PMC9416845 DOI: 10.34067/kid.0002272022] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 05/05/2022] [Indexed: 01/19/2023]
Abstract
Discovering new nephroprotectants may provide therapeutic strategies in AKI.This study provides the first evidence that KLF11, a member of the Krüppel-like factor (KLF) family of proteins, protects against AKI.In the absence of KLF11, exaggerated induction of endothelin-1 and IL-6 occurs after ischemic renal injury and may contribute to worse AKI.
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Affiliation(s)
- Karl A. Nath
- Division of Nephrology and Hypertension, Department of Medicine, Mayo Clinic, Rochester, Minnesota
| | - Raman Deep Singh
- Division of Nephrology and Hypertension, Department of Medicine, Mayo Clinic, Rochester, Minnesota
| | - Anthony J. Croatt
- Division of Nephrology and Hypertension, Department of Medicine, Mayo Clinic, Rochester, Minnesota
| | - Allan W. Ackerman
- Division of Nephrology and Hypertension, Department of Medicine, Mayo Clinic, Rochester, Minnesota
| | - Joseph P. Grande
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota
| | | | - Y. Eugene Chen
- Department of Internal Medicine, Cardiovascular Center, University of Michigan Medical Center, Ann Arbor, Michigan
| | - Jifeng Zhang
- Department of Internal Medicine, Cardiovascular Center, University of Michigan Medical Center, Ann Arbor, Michigan
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14
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Li J, Wang C, Cheng R, Su H, Wang L, Ji L, Ji H. KLF11 promotes the progression of glioma via regulating HJURP. Cell Biol Int 2022; 46:1144-1155. [PMID: 35293659 DOI: 10.1002/cbin.11795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 03/05/2022] [Accepted: 03/13/2022] [Indexed: 11/09/2022]
Abstract
Understanding the molecular mechanism of glioma is very important for the diagnosis and treatment of glioma. Recently, a new study illustrated that KLF11 could be a potential prognostic and diagnostic biomarker in glioma, but the critical role is not illustrated. In this paper, we found that KLF11 was highly expressed in glioma cancer tissues and cells, and KLF11 high expression of glioblastoma (GBM) and Lower-grade glioma (LGG) were correlated with poorer overall survival and disease-free survival percentages. KLF11 knockdown inhibited glioma cell proliferation and migration, while KLF11 overexpression enhanced cell proliferation and migration. In vivo, knockdown of KLF11 reduced the tumor size of glioma. With regard to the molecular regulatory mechanism, we clarified that the Holliday Junction Recognition Protein (HJURP) was positively regulated by KLF11. Meanwhile, we demonstrated that HJURP knockdown also inhibited glioma carcinoma progression. Overexpression of HJURP rescued the suppressed proliferation and migration function of glioma cells with depletion of KLF11. Therefore, our study demonstrated the function of KLF11 in glioma and showed KLF11 and HJURP could be prognostic and diagnostic markers in glioma, which provides a new insight of glioma therapy. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Jian Li
- The Fifth Clinical Medical College of Shanxi Medical University, Taiyuan, 030012, Shanxi Province, China.,Department of neurosurgery, Chanzhi City People's hospital, Chanzhi, 046099, Shanxi Province, China
| | - Chunhong Wang
- The Fifth Clinical Medical College of Shanxi Medical University, Taiyuan, 030012, Shanxi Province, China.,Department of neurosurgery, Shanxi Provincial People's hospital, Taiyuan, 030012, Shanxi, China
| | - Rui Cheng
- The Fifth Clinical Medical College of Shanxi Medical University, Taiyuan, 030012, Shanxi Province, China.,Department of neurosurgery, Shanxi Provincial People's hospital, Taiyuan, 030012, Shanxi, China
| | - Haiyang Su
- The Fifth Clinical Medical College of Shanxi Medical University, Taiyuan, 030012, Shanxi Province, China.,Department of neurosurgery, Shanxi Provincial People's hospital, Taiyuan, 030012, Shanxi, China
| | - Lijun Wang
- The Fifth Clinical Medical College of Shanxi Medical University, Taiyuan, 030012, Shanxi Province, China.,Department of neurosurgery, Shanxi Provincial People's hospital, Taiyuan, 030012, Shanxi, China
| | - Lei Ji
- The Fifth Clinical Medical College of Shanxi Medical University, Taiyuan, 030012, Shanxi Province, China.,Department of neurosurgery, Shanxi Provincial People's hospital, Taiyuan, 030012, Shanxi, China
| | - Hongming Ji
- The Fifth Clinical Medical College of Shanxi Medical University, Taiyuan, 030012, Shanxi Province, China.,Department of neurosurgery, Shanxi Provincial People's hospital, Taiyuan, 030012, Shanxi, China
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15
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Abstract
Purpose Glioma is a primary intracranial malignant tumor with high recurrence and mortality rates. It is very important to study the prognostic factors. KLF11 can function as an oncogene or a tumor suppressor, depending on the tumor and tissue types and the cancer stage. In this study, we aimed to determine whether KLF11 expression is related to the overall survival of glioma patients. Patients and Methods We investigated KLF11 expression in 116 glioma patients with different grades using Western blot and immunohistochemistry assay. We analyzed the patients with different glioma grades and KLF11 expression levels by Kaplan-Meier survival curves. Independent prognostic factors for poor overall survival were identified by univariate and multivariate analyses. Results There were 37 patients in KLF11 low expression group and 79 patients in high expression group. There was no difference in gender, age, tumor diameter or tumor location between two groups. The patients in KLF11 high expression group had higher ECOG score (P =0.025) and higher WHO grades (P =0.029). Western blot and immunohistochemistry assay showed KLF11 expression was significantly upregulated in glioma groups compared with normal brain tissues group (P < 0.05), and the expression in grades III-IV was significantly higher than those in grades I-II (P < 0.05). Kaplan-Meier survival curve analysis showed high KLF11 expression tended to reduce the overall survival (P < 0.05). After univariate and multivariate analyses, KLF11 expression (P =0.003) and age (P =0.007) were independent prognostic factors for poor survival in glioma patients. Conclusion KLF11 expression was increased in glioma tissues, and high KLF11 expression was associated with poor prognosis. KLF11 expression was an independent prognostic factor for poor survival in glioma patients. KLF11 may serve as a novel prognostic marker for gliomas and as a novel treatment target.
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Affiliation(s)
- Zhuo Xi
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Rui Zhang
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Furong Zhang
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Shuang Ma
- Department of Neurology, Shengjing Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Tianda Feng
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China
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16
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Kollert L, Schiele MA, Thiel C, Menke A, Deckert J, Domschke K. DNA hypomethylation of the Krüppel-like factor 11 ( KLF11) gene promoter: a putative biomarker of depression comorbidity in panic disorder and of non-anxious depression? J Neural Transm (Vienna) 2020; 127:1539-1546. [PMID: 32524199 PMCID: PMC7578153 DOI: 10.1007/s00702-020-02216-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 06/02/2020] [Indexed: 01/10/2023]
Abstract
Panic disorder (PD) is one of the most common anxiety disorders and often occurs comorbidly with major depressive disorder (MDD). Altered methylation of the monoamine oxidase A (MAOA) gene has been implicated in the etiology of both PD and MDD. The Krüppel-like factor 11 (KLF11; alias TIEG2), an activating transcription factor of the MAOA gene, has been found to be increased in MDD, but has not yet been investigated in PD. In an effort to further delineate the effects of the KLF11–MAOA pathway in anxiety and affective disorders, KLF11 promoter methylation was analyzed via pyrosequencing of sodium bisulfite-treated DNA isolated from human peripheral blood in two independent samples of PD patients with or without comorbid MDD in a case–control design (sample 1: N = 120) as well as MDD patients with and without anxious depression (sample 2: N = 170). Additionally, in sample 1, KLF11 methylation was correlated with Beck Depression Inventory (BDI-II) scores. No overall association of KLF11 promoter methylation with PD was detected. However, PD patients with comorbid MDD showed significant hypomethylation relative to both healthy controls (p = 0.010) and PD patients without comorbid MDD (p = 0.008). Furthermore, KLF11 methylation was negatively correlated with BDI-II scores in PD patients (p = 0.013). MDD patients without anxious features showed nominally decreased KLF11 methylation in comparison to MDD patients with anxious depression (p = 0.052). The present results suggest KLF11 promoter hypomethylation as a potential epigenetic marker of MDD comorbidity in PD or of non-anxious depression, respectively, possibly constituting a differential pathomechanism in anxiety and mood disorders.
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Affiliation(s)
- Leonie Kollert
- Department of Psychiatry, Psychosomatics and Psychotherapy, University of Würzburg, Würzburg, Germany
| | - Miriam A Schiele
- Department of Psychiatry and Psychotherapy, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Christiane Thiel
- Department of Psychiatry and Psychotherapy, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Andreas Menke
- Department of Psychiatry, Psychosomatics and Psychotherapy, University of Würzburg, Würzburg, Germany
| | - Jürgen Deckert
- Department of Psychiatry, Psychosomatics and Psychotherapy, University of Würzburg, Würzburg, Germany
| | - Katharina Domschke
- Department of Psychiatry and Psychotherapy, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany. .,Center for Basics in Neuromodulation, Faculty of Medicine, University of Freiburg, Freiburg, Germany.
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17
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Viola L, Londero AP, Bertozzi S, Orsaria M, Marzinotto S, Antoniazzi F, Renda V, Cinel J, Fruscalzo A, Lellé RJ, Mariuzzi L. Prognostic Role of Krüppel-Like Factors 5, 9, and 11 in Endometrial Endometrioid Cancer. Pathol Oncol Res 2020; 26:2265-2272. [PMID: 32451988 DOI: 10.1007/s12253-020-00817-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Accepted: 04/28/2020] [Indexed: 12/01/2022]
Abstract
BACKGROUND AND OBJECTIVE Krüppel-like factors (KLFs) are transcription factors with the ability to mediate cross-talk with signaling pathways involved in cell proliferation control, apoptosis, migration, and differentiation. They also appear to influence steroid hormone signaling through transcriptional networks involving steroid hormone receptors and members of the nuclear receptor family of transcription factors. Our study aims to evaluate the potential prognostic role of KLF5, KLF9, and KLF11 in endometrial cancer, and their correlation with hormonal receptor status and cellular proliferation. MATERIALS AND METHODS Retrospective observational study on cases of endometrioid endometrial adenocarcinoma collected in the period January 2000-December 2011 at the University of Udine. Formalin-fixed, paraffin-embedded tissue samples were all submitted to tissue microarray immunohistochemical study. A survival analysis was performed. RESULTS One hundred forty seven patients were included in the study with a mean age at surgery of 65.6 years (±10.2). 80.3% of endometrial malignancies were classified as stage FIGO I (118/147). Radiation therapy and chemotherapy were administered in 62.3% (91/146) and 6.2% (9/145) of patients respectively. Five-year overall survival and disease-free survival resulted 85.4% (95% CI, 79.8-91.4%) and 79.4% (95% CI, 73.0-86.4%) respectively. A high Ki-67, cytoplasmatic KLF5 (HR 4.72, CI.95 1.61-13.89, p < 0.05), and nuclear KLF11 (HR 3.04, CI.95 0.99-9.36, p = 0.053) scores correlated with a shorter overall survival. In addition, a high nuclear KLF11 (HR 2.59, CI.95 1.13-5.95, p < 0.05) score correlated with a shorter disease-free survival. CONCLUSIONS In patients affected by endometrioid endometrial carcinoma, higher staining levels of KLF5 and KLF11 correlated with a poorer prognosis. However, further studies are required in order to better clarify the role of KLFs in the natural history of endometrial cancer.
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Affiliation(s)
- Luigi Viola
- Radiology Department, University of Campania "Luigi Vanvitelli", Naples, 80138, Italy
| | - Ambrogio P Londero
- Clinic of Obstetrics and Gynecology, DAME, Academic Hospital of Udine, University of Udine, Piazzale Santa Maria della Misericordia, 15, 33100, Udine, Italy. .,Ennergi Research (Non-Profit Organization), Lestizza, 33050, Italy.
| | - Serena Bertozzi
- Ennergi Research (Non-Profit Organization), Lestizza, 33050, Italy.,Breast Unit, DAME, Academic Hospital of Udine, University of Udine, 33100, Udine, Italy
| | - Maria Orsaria
- Institute of Pathology, DAME, Academic Hospital of Udine, University of Udine, Udine, 33100, Italy
| | - Stefania Marzinotto
- Institute of Pathology, DAME, Academic Hospital of Udine, University of Udine, Udine, 33100, Italy
| | - Fulvio Antoniazzi
- Institute of Pathology, DAME, Academic Hospital of Udine, University of Udine, Udine, 33100, Italy
| | - Valentina Renda
- Institute of Pathology, DAME, Academic Hospital of Udine, University of Udine, Udine, 33100, Italy
| | - Jacqueline Cinel
- Clinic of Surgery, Academic Hospital of Udine, University of Udine, 33100, Udine, Italy
| | - Arrigo Fruscalzo
- Clinic of Obstetrics and Gynecology, Christophorus-Kliniken, 48653, Coesfeld, Germany.,Clinic of Obstetrics and Gynecology, University Hospital of Münster, Albert-Schweitzer-Campus 1, Gebäude: A1, 48149, Münster, Germany
| | - Ralph J Lellé
- Clinic of Obstetrics and Gynecology, University Hospital of Münster, Albert-Schweitzer-Campus 1, Gebäude: A1, 48149, Münster, Germany
| | - Laura Mariuzzi
- Institute of Pathology, DAME, Academic Hospital of Udine, University of Udine, Udine, 33100, Italy
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18
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Son B, Jeon J, Lee S, Kim H, Kang H, Youn H, Jo S, Youn B. Radiotherapy in combination with hyperthermia suppresses lung cancer progression via increased NR4A3 and KLF11 expression. Int J Radiat Biol 2019; 95:1696-1707. [PMID: 31498019 DOI: 10.1080/09553002.2019.1665213] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Purpose: Hyperthermia (HT), a clinical treatment involving delivery of heat to tumors, has been used in combination with traditional chemotherapy and radiotherapy to enhance their effects. However, the molecular mechanism underlying the high efficacy of combination therapy is not clear. This study was conducted to identify the molecular mechanism underlying the sensitization of lung cancer to radiotherapy by HT.Materials and methods: Nuclear receptor subfamily 4, group A, member 3 (NR4A3) and Krüppel-like factor 11 (KLF11) expression in non-small-cell lung cancer cells was confirmed by performing real-time quantitative reverse transcription-polymerase chain reaction. Tumor cell proliferation and apoptosis were assessed via a colony-forming assay and Annexin V/propidium iodide staining.Results and conclusions: Expression profile analysis revealed elevated levels of NR4A3 and KLF11 in A549 lung cancer cells after treatment with HT combined with radiation. We also confirmed that NR4A3 and KLF11 induced apoptosis and inhibited cell proliferation by elevating intracellular reactive oxygen species levels. Knockdown of NR4A3 or KLF11 using siRNA led to decreased effects of radiohyperthermia. Finally, the effect of these two factors on lung cancer progression was evaluated by in vivo xenograft studies. Taken together, the results suggest that NR4A3 and KLF11 are critical for increasing the efficacy of radiotherapy in combination with HT.
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Affiliation(s)
- Beomseok Son
- Department of Integrated Biological Science, Pusan National University, Busan, Republic of Korea
| | - Jaewan Jeon
- Department of Integrated Biological Science, Pusan National University, Busan, Republic of Korea.,Department of Radiation Oncology, Haeundae Paik Hospital, Inje University School of Medicine, Busan, Republic of Korea
| | - Sungmin Lee
- Department of Integrated Biological Science, Pusan National University, Busan, Republic of Korea
| | - Hyunwoo Kim
- Department of Integrated Biological Science, Pusan National University, Busan, Republic of Korea
| | - Hyunkoo Kang
- Department of Integrated Biological Science, Pusan National University, Busan, Republic of Korea
| | - HyeSook Youn
- Department of Integrative Bioscience and Biotechnology, Sejong University, Seoul, Republic of Korea
| | - Sunmi Jo
- Department of Radiation Oncology, Haeundae Paik Hospital, Inje University School of Medicine, Busan, Republic of Korea
| | - BuHyun Youn
- Department of Integrated Biological Science, Pusan National University, Busan, Republic of Korea.,Department of Biological Sciences, Pusan National University, Busan, Republic of Korea
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19
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Wang J, Cheng C, Xin C, Wang Z. The Antidepressant-like Effect of Flavonoids from Trigonella Foenum-Graecum Seeds in Chronic Restraint Stress Mice via Modulation of Monoamine Regulatory Pathways. Molecules 2019; 24:molecules24061105. [PMID: 30897781 PMCID: PMC6471463 DOI: 10.3390/molecules24061105] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Revised: 03/17/2019] [Accepted: 03/19/2019] [Indexed: 01/08/2023] Open
Abstract
Fenugreek (Trigonella Foenum-Graecum) seeds flavonoids (FSF) have diverse biological activities, while the antidepressant-like effect of FSF has been seldom explored. The aim of this study was to evaluate the antidepressant-like effect of FSF and to identify the potential molecular mechanisms. LC-MS/MS was used for the determination of FSF. Chronic restraint stress (CRS) was used to establish the animal model of depression. Observation of exploratory behavior in the forced swimming test (FST), tail suspension test (TST) and sucrose preference test (SPT) indicated the stress level. The serum corticosterone (CORT) level was measured. The monoamine neurotransmitters (5-HT, NE and DA) and their metabolites, as well as monoamine oxidase A (MAO-A) enzyme activity in the prefrontal cortex, hippocampus and striatum, were evaluated. The protein expression levels of KLF11, SIRT1, MAO-A were also determined by western blot analysis. The results showed that FSF treatment significantly reversed the CRS-induced behavioral abnormalities, including reduced sucrose preference and increased immobility time. FSF administration markedly restored CRS induced changes in concentrations of serum corticosterone, prefrontal cortex neurotransmitters (NE, 5-HT and DA), hippocampus neurotransmitters (NE, 5-HT and DA) and striatum neurotransmitters (NE). FSF treatment exhibited significant inhibition of MAO-A activity in the prefrontal cortex and hippocampus. FSF also significantly down-regulated the KLF11, SIRT1 and MAO-A protein expression levels in the prefrontal cortex and hippocampus. These findings indicate that FSF could exhibit an antidepressant-like effect by down-regulating the KLF11/SIRT1-MAO-A pathways, inhibiting MAO-A expression and activity, as well as up-regulating monoamine neurotransmitters levels.
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Affiliation(s)
- Jiancheng Wang
- Harbin Institute of Technology, 92 West Dazhi Street, Nangang District, Harbin 150001, China.
| | - Cuilin Cheng
- Harbin Institute of Technology, 92 West Dazhi Street, Nangang District, Harbin 150001, China.
| | - Chao Xin
- Harbin Institute of Technology, 92 West Dazhi Street, Nangang District, Harbin 150001, China.
| | - Zhenyu Wang
- Harbin Institute of Technology, 92 West Dazhi Street, Nangang District, Harbin 150001, China.
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Kaneko Y, Konno T, Kohno T, Kakuki T, Miyata R, Ohkuni T, Kakiuchi A, Yajima R, Ohwada K, Kurose M, Himi T, Takano K, Kojima T. Induction of airway progenitor cells via p63 and KLF11 by Rho-kinase inhibitor Y27632 in hTERT-human nasal epithelial cells. Am J Transl Res 2019; 11:599-611. [PMID: 30899365 PMCID: PMC6413250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Accepted: 12/23/2018] [Indexed: 06/09/2023]
Abstract
Rho-kinase inhibitor Y27632, which is a factor in conditional reprogramming culture, induces airway progenitor clone formation. To investigate whether Y27632 enhances airway progenitor cells in nasal epithelium, primary cultures of HNECs transfected with human telomerase reverse transcriptase (hTERT-HNECs) were treated with Y27632. In TERT-HNECs treated with Y27632 for 5 days, upregulation of p63, gap junction molecules Cx26, Cx30, Cx43, cytochrome P450 enzymes CYP2C9, CYP2C18, CYP39A1, CYP4B1, CYP2G1P, CYP4Z1, and KLF families KLF10 and KLF11 were observed compared to the control. Downregulation of tight junction molecules claudin-4, -7, and -23 was observed. Circumfential submembrane F-actin was also induced. The functions of gap junctional intercellular communication (GJIC) and the epithelial barrier were upregulated. Knockdown of p63 by siRNAs of TAp63 or ΔNp63 inhibited Cx26, Cx43 and CYP2C18, and induced claudin-1, and -4. Knockdown of KLF11 prevented p63 expression and enhancement of the epithelial barrier function by Y27632. In nasal mucosal tissues from patients with allergic rhinitis (AR), localized alteration of p63, KLF11, RhoA, Cx30 and claudin-4 was observed. Treatment with Y27632 in long-term culture induced airway progenitor cells via KLF11 in p63-positive human nasal epithelium. Airway progenitor cells of nasal epithelium induced by Y27632 is important in understanding upper airway disease-specific characteristics.
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Affiliation(s)
- Yakuto Kaneko
- Department of Cell Science, Research Institute for Frontier Medicine, Sapporo Medical University School of MedicineSapporo 060-8556, Japan
- Department of Otolaryngology, Sapporo Medical University School of MedicineSapporo 060-8556, Japan
| | - Takumi Konno
- Department of Cell Science, Research Institute for Frontier Medicine, Sapporo Medical University School of MedicineSapporo 060-8556, Japan
| | - Takayuki Kohno
- Department of Cell Science, Research Institute for Frontier Medicine, Sapporo Medical University School of MedicineSapporo 060-8556, Japan
| | - Takuya Kakuki
- Department of Otolaryngology, Sapporo Medical University School of MedicineSapporo 060-8556, Japan
| | - Ryo Miyata
- Department of Otolaryngology, Sapporo Medical University School of MedicineSapporo 060-8556, Japan
| | - Tsuyoshi Ohkuni
- Department of Otolaryngology, Sapporo Medical University School of MedicineSapporo 060-8556, Japan
| | - Akito Kakiuchi
- Department of Cell Science, Research Institute for Frontier Medicine, Sapporo Medical University School of MedicineSapporo 060-8556, Japan
- Department of Otolaryngology, Sapporo Medical University School of MedicineSapporo 060-8556, Japan
| | - Ryoto Yajima
- Department of Cell Science, Research Institute for Frontier Medicine, Sapporo Medical University School of MedicineSapporo 060-8556, Japan
- Department of Otolaryngology, Sapporo Medical University School of MedicineSapporo 060-8556, Japan
| | - Kizuku Ohwada
- Department of Cell Science, Research Institute for Frontier Medicine, Sapporo Medical University School of MedicineSapporo 060-8556, Japan
- Department of Otolaryngology, Sapporo Medical University School of MedicineSapporo 060-8556, Japan
| | - Makoto Kurose
- Department of Otolaryngology, Sapporo Medical University School of MedicineSapporo 060-8556, Japan
| | - Tetsuo Himi
- Department of Otolaryngology, Sapporo Medical University School of MedicineSapporo 060-8556, Japan
| | - Kenichi Takano
- Department of Otolaryngology, Sapporo Medical University School of MedicineSapporo 060-8556, Japan
| | - Takashi Kojima
- Department of Cell Science, Research Institute for Frontier Medicine, Sapporo Medical University School of MedicineSapporo 060-8556, Japan
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Wehrkamp CJ, Natarajan SK, Mohr AM, Phillippi MA, Mott JL. miR-106b-responsive gene landscape identifies regulation of Kruppel-like factor family. RNA Biol 2018; 15:391-403. [PMID: 29286255 DOI: 10.1080/15476286.2017.1422471] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
MicroRNA dysregulation is a common feature of cancer and due to the promiscuity of microRNA binding this can result in a wide array of genes whose expression is altered. miR-106b is an oncomiR overexpressed in cholangiocarcinoma and its upregulation in this and other cancers often leads to repression of anti-tumorigenic targets. The goal of this study was to identify the miR-106b-regulated gene landscape in cholangiocarcinoma cells using a genome-wide, unbiased mRNA analysis. Through RNA-Seq we found 112 mRNAs significantly repressed by miR-106b. The majority of these genes contain the specific miR-106b seed-binding site. We have validated 11 genes from this set at the mRNA level and demonstrated regulation by miR-106b of 7 proteins. Combined analysis of our miR-106b-regulated mRNA data set plus published reports indicate that miR-106b binding is anchored by G:C pairing in and near the seed. Novel targets Kruppel-like factor 2 (KLF2) and KLF6 were verified both at the mRNA and at the protein level. Further investigation showed regulation of four other KLF family members by miR-106b. We have discovered coordinated repression of multiple members of the KLF family by miR-106b that may play a role in cholangiocarcinoma tumor biology.
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Affiliation(s)
- Cody J Wehrkamp
- a Department of Biochemistry and Molecular Biology , Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center , Omaha
| | - Sathish Kumar Natarajan
- a Department of Biochemistry and Molecular Biology , Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center , Omaha
| | - Ashley M Mohr
- a Department of Biochemistry and Molecular Biology , Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center , Omaha
| | - Mary Anne Phillippi
- a Department of Biochemistry and Molecular Biology , Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center , Omaha
| | - Justin L Mott
- a Department of Biochemistry and Molecular Biology , Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center , Omaha
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Hujie G, Zhou SH, Zhang H, Qu J, Xiong XW, Hujie O, Liao CG, Yang SE. MicroRNA-10b regulates epithelial-mesenchymal transition by modulating KLF4/ KLF11/Smads in hepatocellular carcinoma. Cancer Cell Int 2018; 18:10. [PMID: 29375271 PMCID: PMC5773153 DOI: 10.1186/s12935-018-0508-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2017] [Accepted: 01/11/2018] [Indexed: 02/08/2023] Open
Abstract
Background Our previous work showed that miR-10b was overexpressed in hepatocellular carcinoma (HCC) and promoted HCC cell migration and invasion. Epithelial–mesenchymal transition (EMT) is involved in HCC metastasis. So, we suspected that miR-10b might participate in the HCC EMT. Methods We performed morphological analysis and immunofluorescence to observe the roles of miR-10b in HCC EMT. The expression of KLF11 and EMT markers were detected by real-time RT-PCR and western blot. The regulation roles of miR-10b on KLF11 and KLF4 were determined by luciferase reporter assay. The chromatin immunoprecipitation revealed the binding relationship between KLF4 and KLF11. Results We found that overexpression of miR-10b could promote HCC EMT. miR-10b could upregulated KLF11 expression. The upregulation of KLF11 reduced the downstream molecular Smad7 expression, which upregulated the Smad3 expression to promote EMT development. Furthermore, the induction role of miR-10b in HCC EMT could be blocked by KLF11 siRNA. But our results showed that there was no direct regulation of miR-10b in KLF11 expression. Specifically, miR-10b could bind to the 3′UTR of KLF4 and inhibit KLF4 expression. KLF4 could directly bind to KLF11 promoter and downregulate KLF11 transcription. Conclusion Our results reveal that miR-10b downregulates KLF4, the inhibitory transcriptional factor of KLF11, which induces Smads signaling activity to promote HCC EMT. Our study presents the regulation mechanism of miR-10b in EMT through the KLF4/KLF11/Smads pathway for the first time and implicates miR-10b as a potential target for HCC therapies.
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Affiliation(s)
- Gulibaha Hujie
- 1Department of Medical Oncology, Affiliated Tumor Hospital of Xinjiang Medical University, Urumqi, 830000 People's Republic of China.,Department of Gerontology, General Hospital of Xinjiang Military Command of PLA, Urumqi, 830000 People's Republic of China
| | - Sheng-Hua Zhou
- Department of Gerontology, General Hospital of Xinjiang Military Command of PLA, Urumqi, 830000 People's Republic of China
| | - Hua Zhang
- Department of Oncology, Korla Hospital, Second Divisions of Xinjiang Production and Construction Corps, Korla, 841000 People's Republic of China
| | - Jie Qu
- Department of Gerontology, General Hospital of Xinjiang Military Command of PLA, Urumqi, 830000 People's Republic of China
| | - Xiao-Wei Xiong
- Department of Gerontology, General Hospital of Xinjiang Military Command of PLA, Urumqi, 830000 People's Republic of China
| | - Outikuer Hujie
- 4Xinjiang Medical University, Urumqi, 830000 People's Republic of China
| | - Cheng-Gong Liao
- Department of Oncology, General Hospital of Xinjiang Military Command of PLA, Urumqi, 830000 People's Republic of China
| | - Shun-E Yang
- 1Department of Medical Oncology, Affiliated Tumor Hospital of Xinjiang Medical University, Urumqi, 830000 People's Republic of China
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Tu X, Zheng X, Li H, Cao Z, Chang H, Luan S, Zhu J, Chen J, Zang Y, Zhang J. MicroRNA-30 Protects Against Carbon Tetrachloride-induced Liver Fibrosis by Attenuating Transforming Growth Factor Beta Signaling in Hepatic Stellate Cells. Toxicol Sci 2015; 146:157-69. [PMID: 25912033 DOI: 10.1093/toxsci/kfv081] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Transforming growth factor beta (TGF-β) is crucial for transdifferentiation of hepatic stellate cells (HSCs) and the blunting of TGF-β signaling in HSCs can effectively prevent liver fibrosis. Krüppel-like factor 11 (KLF11) is an early response transcription factor that potentiates TGF-β/Smad signaling by suppressing the transcription of inhibitory Smad7. Using a mouse model of carbon tetrachloride (CCl4)-induced liver fibrosis, we observed significant upregulation of KLF11 in the activated HSCs during liver fibrogenesis. Meanwhile, the downregulation of miR-30 was observed in the HSCs isolated from fibrotic liver. Adenovirus-mediated ectopic expression of miR-30 was under the control of smooth muscle α-actin promoter, showing that the increase in miR-30 in HSC greatly reduced CCl4-induced liver fibrosis. Subsequent investigations showed that miR-30 suppressed KLF11 expression in HSC and led to a significant upregulation of Smad7 in vivo. Mechanistic studies further confirmed that KLF11 was the direct target of miR-30, and revealed that miR-30 blunted the profibrogenic TGF-β signaling in HSC by suppressing KLF11 expression and thus enhanced the negative feedback loop of TGF-β signaling imposed by Smad7. Finally, we demonstrated that miR-30 facilitated the reversal of activated HSC to a quiescent state as indicated by the inhibition of proliferation and migration, the loss of activation markers, and the gain of quiescent HSC markers. In conclusion, our results define miR-30 as a crucial suppressor of TGF-β signaling in HSCs activation and provide useful insights into the mechanisms underlying liver fibrosis.
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Affiliation(s)
- Xiaolong Tu
- *State Key Laboratory of Pharmaceutical Biotechnology, School of Life Science, Nanjing University, State Key Laboratory of Analytical Chemistry for Life Science, Nanjing University and Jiangsu Engineering Research Center for microRNA Biology and Biotechnology, Nanjing University, Nanjing 210093, People's Republic of China
| | - Xiuxiu Zheng
- *State Key Laboratory of Pharmaceutical Biotechnology, School of Life Science, Nanjing University, State Key Laboratory of Analytical Chemistry for Life Science, Nanjing University and Jiangsu Engineering Research Center for microRNA Biology and Biotechnology, Nanjing University, Nanjing 210093, People's Republic of China
| | - Huanan Li
- *State Key Laboratory of Pharmaceutical Biotechnology, School of Life Science, Nanjing University, State Key Laboratory of Analytical Chemistry for Life Science, Nanjing University and Jiangsu Engineering Research Center for microRNA Biology and Biotechnology, Nanjing University, Nanjing 210093, People's Republic of China
| | - Zhipeng Cao
- *State Key Laboratory of Pharmaceutical Biotechnology, School of Life Science, Nanjing University, State Key Laboratory of Analytical Chemistry for Life Science, Nanjing University and Jiangsu Engineering Research Center for microRNA Biology and Biotechnology, Nanjing University, Nanjing 210093, People's Republic of China
| | - Hanwen Chang
- *State Key Laboratory of Pharmaceutical Biotechnology, School of Life Science, Nanjing University, State Key Laboratory of Analytical Chemistry for Life Science, Nanjing University and Jiangsu Engineering Research Center for microRNA Biology and Biotechnology, Nanjing University, Nanjing 210093, People's Republic of China
| | - Shaoyuan Luan
- *State Key Laboratory of Pharmaceutical Biotechnology, School of Life Science, Nanjing University, State Key Laboratory of Analytical Chemistry for Life Science, Nanjing University and Jiangsu Engineering Research Center for microRNA Biology and Biotechnology, Nanjing University, Nanjing 210093, People's Republic of China
| | - Jie Zhu
- *State Key Laboratory of Pharmaceutical Biotechnology, School of Life Science, Nanjing University, State Key Laboratory of Analytical Chemistry for Life Science, Nanjing University and Jiangsu Engineering Research Center for microRNA Biology and Biotechnology, Nanjing University, Nanjing 210093, People's Republic of China
| | - Jiangning Chen
- *State Key Laboratory of Pharmaceutical Biotechnology, School of Life Science, Nanjing University, State Key Laboratory of Analytical Chemistry for Life Science, Nanjing University and Jiangsu Engineering Research Center for microRNA Biology and Biotechnology, Nanjing University, Nanjing 210093, People's Republic of China
| | - Yuhui Zang
- *State Key Laboratory of Pharmaceutical Biotechnology, School of Life Science, Nanjing University, State Key Laboratory of Analytical Chemistry for Life Science, Nanjing University and Jiangsu Engineering Research Center for microRNA Biology and Biotechnology, Nanjing University, Nanjing 210093, People's Republic of China *State Key Laboratory of Pharmaceutical Biotechnology, School of Life Science, Nanjing University, State Key Laboratory of Analytical Chemistry for Life Science, Nanjing University and Jiangsu Engineering Research Center for microRNA Biology and Biotechnology, Nanjing University, Nanjing 210093, People's Republic of China
| | - Junfeng Zhang
- *State Key Laboratory of Pharmaceutical Biotechnology, School of Life Science, Nanjing University, State Key Laboratory of Analytical Chemistry for Life Science, Nanjing University and Jiangsu Engineering Research Center for microRNA Biology and Biotechnology, Nanjing University, Nanjing 210093, People's Republic of China *State Key Laboratory of Pharmaceutical Biotechnology, School of Life Science, Nanjing University, State Key Laboratory of Analytical Chemistry for Life Science, Nanjing University and Jiangsu Engineering Research Center for microRNA Biology and Biotechnology, Nanjing University, Nanjing 210093, People's Republic of China
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24
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Loft A, Forss I, Siersbæk MS, Schmidt SF, Larsen ASB, Madsen JGS, Pisani DF, Nielsen R, Aagaard MM, Mathison A, Neville MJ, Urrutia R, Karpe F, Amri EZ, Mandrup S. Browning of human adipocytes requires KLF11 and reprogramming of PPARγ superenhancers. Genes Dev 2014; 29:7-22. [PMID: 25504365 PMCID: PMC4281566 DOI: 10.1101/gad.250829.114] [Citation(s) in RCA: 121] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Long-term exposure to peroxisome proliferator-activated receptor γ (PPARγ) agonists such as rosiglitazone induces browning of rodent and human adipocytes; however, the transcriptional mechanisms governing this phenotypic switch in adipocytes are largely unknown. Here we show that rosiglitazone-induced browning of human adipocytes activates a comprehensive gene program that leads to increased mitochondrial oxidative capacity. Once induced, this gene program and oxidative capacity are maintained independently of rosiglitazone, suggesting that additional browning factors are activated. Browning triggers reprogramming of PPARγ binding, leading to the formation of PPARγ "superenhancers" that are selective for brown-in-white (brite) adipocytes. These are highly associated with key brite-selective genes. Based on such an association, we identified an evolutionarily conserved metabolic regulator, Kruppel-like factor 11 (KLF11), as a novel browning transcription factor in human adipocytes that is required for rosiglitazone-induced browning, including the increase in mitochondrial oxidative capacity. KLF11 is directly induced by PPARγ and appears to cooperate with PPARγ in a feed-forward manner to activate and maintain the brite-selective gene program.
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Affiliation(s)
- Anne Loft
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, DK-5230 Odense M, Denmark
| | - Isabel Forss
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, DK-5230 Odense M, Denmark
| | - Majken Storm Siersbæk
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, DK-5230 Odense M, Denmark
| | - Søren Fisker Schmidt
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, DK-5230 Odense M, Denmark
| | - Ann-Sofie Bøgh Larsen
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, DK-5230 Odense M, Denmark
| | - Jesper Grud Skat Madsen
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, DK-5230 Odense M, Denmark; The Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, DK-2200 Copenhagen, Denmark
| | - Didier F Pisani
- UMR 7277, Centre National de la Recherche Scientifique, U1091, Institut National de la Santé et de la Recherche Médicale, Institute of Biology Valrose, University Nice Sophia Antipolis, 06100 Nice, France
| | - Ronni Nielsen
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, DK-5230 Odense M, Denmark
| | - Mads Malik Aagaard
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, DK-5230 Odense M, Denmark
| | - Angela Mathison
- Laboratory of Epigenetics and Chromatin Dynamics, Mayo Clinic, Rochester, Minnesota 55905, USA
| | - Matt J Neville
- National Institute for Health Research, Oxford Biomedical Research Centre, OX3 7LE Oxford, United Kingdom
| | - Raul Urrutia
- Laboratory of Epigenetics and Chromatin Dynamics, Mayo Clinic, Rochester, Minnesota 55905, USA
| | - Fredrik Karpe
- National Institute for Health Research, Oxford Biomedical Research Centre, OX3 7LE Oxford, United Kingdom
| | - Ez-Zoubir Amri
- UMR 7277, Centre National de la Recherche Scientifique, U1091, Institut National de la Santé et de la Recherche Médicale, Institute of Biology Valrose, University Nice Sophia Antipolis, 06100 Nice, France
| | - Susanne Mandrup
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, DK-5230 Odense M, Denmark;
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Tabbaa ZM, Zheng Y, Daftary GS. KLF11 epigenetically regulates glycodelin-A, a marker of endometrial biology via histone-modifying chromatin mechanisms. Reprod Sci 2013; 21:319-28. [PMID: 24060634 DOI: 10.1177/1933719113503407] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Endometrial biology is characterized by programmed proliferation and differentiation that is synchronous with ovarian folliculogenesis to maximize the chance of pregnancy. Glycodelin-A, an endometrial secretory protein, promotes pregnancy mostly through immunomodulatory mechanisms. Glycodelin-A is repressed during the proliferative and early secretory phase and activated thereafter. Progesterone activates glycodelin via the Sp1 (Specificity Protein 1) transactivator. We identify a novel role for Kruppel-like transcription factor 11 (KLF11) as a glycodelin-A repressor. Although KLF11 bound 2 distinct regulatory elements, it regulated glycodelin promoter activity differentially through each element. Whereas KLF11 weakly activated glycodelin promoter activity via a region that also bound Sp1, the dominant effect of KLF11 was repression of promoter activity, messenger RNA (mRNA), and protein expression via a novel, specific binding element. KLF11 mediated this repression by recruiting the SIN3/histone deacetylase (HDAC) corepressor complex to the glycodelin promoter. KLF11 may solely, or by competing with Sp1, repress glycodelin-A levels and thereby influence its role in the endometrium.
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Affiliation(s)
- Zaid M Tabbaa
- 1Laboratory of Translational Epigenetics in Reproduction, Department of Obstetrics and Gynecology, Mayo Clinic, Rochester, MN, USA
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Lomberk G, Grzenda A, Mathison A, Escande C, Zhang JS, Calvo E, Miller LJ, Iovanna J, Chini EN, Fernandez-Zapico ME, Urrutia R. Krüppel-like factor 11 regulates the expression of metabolic genes via an evolutionarily conserved protein interaction domain functionally disrupted in maturity onset diabetes of the young. J Biol Chem 2013; 288:17745-58. [PMID: 23589285 PMCID: PMC3682574 DOI: 10.1074/jbc.m112.434670] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
The function of Krüppel-like factor 11 (KLF11) in the regulation of metabolic pathways is conserved from flies to human. Alterations in KLF11 function result in maturity onset diabetes of the young 7 (MODY7) and neonatal diabetes; however, the mechanisms underlying the role of this protein in metabolic disorders remain unclear. Here, we investigated how the A347S genetic variant, present in MODY7 patients, modulates KLF11 transcriptional activity. A347S affects a previously identified transcriptional regulatory domain 3 (TRD3) for which co-regulators remain unknown. Structure-oriented sequence analyses described here predicted that the KLF11 TRD3 represents an evolutionarily conserved protein domain. Combined yeast two-hybrid and protein array experiments demonstrated that the TRD3 binds WD40, WWI, WWII, and SH3 domain-containing proteins. Using one of these proteins as a model, guanine nucleotide-binding protein β2 (Gβ2), we investigated the functional consequences of KLF11 coupling to a TRD3 binding partner. Combined immunoprecipitation and biomolecular fluorescence complementation assays confirmed that activation of three different metabolic G protein-coupled receptors (β-adrenergic, secretin, and cholecystokinin) induces translocation of Gβ2 to the nucleus where it directly binds KLF11 in a manner that is disrupted by the MODY7 A347S variant. Using genome-wide expression profiles, we identified metabolic gene networks impacted upon TRD3 disruption. Furthermore, A347S disrupted KLF11-mediated increases in basal insulin levels and promoter activity and blunted glucose-stimulated insulin secretion. Thus, this study characterizes a novel protein/protein interaction domain disrupted in a KLF gene variant that associates to MODY7, contributing to our understanding of gene regulation events in complex metabolic diseases.
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Affiliation(s)
- Gwen Lomberk
- Laboratory of Epigenetics and Chromatin Dynamics, Epigenomics Translational Program, Mayo Clinic Center for Individualized Medicine, Division of Gastroenterology and Hepatology, and Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, Minnesota 55905, USA
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