1
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Baek J, Kim JH, Park J, Kim DH, Sa S, Han JS, Kim W. 1-Kestose Blocks UVB-Induced Skin Inflammation and Promotes Type I Procollagen Synthesis via Regulating MAPK/AP-1, NF-κB and TGF-β/Smad Pathway. J Microbiol Biotechnol 2024; 34:911-919. [PMID: 38379292 DOI: 10.4014/jmb.2311.11020] [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: 11/15/2023] [Revised: 01/26/2024] [Accepted: 02/17/2024] [Indexed: 02/22/2024]
Abstract
Solar UVB irradiation cause skin photoaging by inducing the high expression of matrix metalloproteinase (MMPs) to inhibit the expression of Type1 procollagen synthesis. 1-Kestose, a natural trisaccharide, has been indicated to show a cytoprotective role in UVB radiation-induced-HaCaT cells. However, few studies have confirmed the anti-aging effects. In the present study, we evaluated the anti-photoaging and pathological mechanism of 1-kestose using Human keratinocytes (HaCaT) cells. The results found that 1-kestose pretreatment remarkably reduced UVB-generated reactive oxygen species (ROS) accumulation in HaCaT cells. 1-Kestose suppressed UVB radiation-induced MMPs expressions by blocking MAPK/AP-1 and NF-κB p65 translocation. 1-Kestose pretreatment increased Type 1 procollagen gene expression levels by activating TGF-β/Smad signaling pathway. Taken together, our results demonstrate that 1-kestose may serve as a potent natural trisaccharide for inflammation and photoaging prevention.
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Affiliation(s)
- Jihye Baek
- Department of Microbiology, Chung-Ang University College of Medicine, Seoul 06974, Republic of Korea
| | - Jong-Hwa Kim
- Department of Microbiology, Chung-Ang University College of Medicine, Seoul 06974, Republic of Korea
| | - Jiwon Park
- Food R&D Center, Samyang Corp., Seongnam 13488, Republic of Korea
| | - Do Hyun Kim
- Food R&D Center, Samyang Corp., Seongnam 13488, Republic of Korea
| | - Soonok Sa
- Food R&D Center, Samyang Corp., Seongnam 13488, Republic of Korea
| | - Jung-Sook Han
- Food R&D Center, Samyang Corp., Seongnam 13488, Republic of Korea
| | - Wonyong Kim
- Department of Microbiology, Chung-Ang University College of Medicine, Seoul 06974, Republic of Korea
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2
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Yang Z, Chen F, Wei D, Chen F, Jiang H, Qin S. EGR1 mediates MDR1 transcriptional activity regulating gemcitabine resistance in pancreatic cancer. BMC Cancer 2024; 24:268. [PMID: 38408959 PMCID: PMC10895816 DOI: 10.1186/s12885-024-12005-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Accepted: 02/14/2024] [Indexed: 02/28/2024] Open
Abstract
BACKGROUND Gemcitabine is a cornerstone drug for the treatment of all stages of pancreatic cancer and can prolong the survival of patients with pancreatic cancer, but resistance to gemcitabine in pancreatic cancer patients hinders its efficacy. The overexpression of Early growth response 1(EGR1) in pancreatic ductal adenocarcinoma as a mechanism of gemcitabine chemoresistance in pancreatic cancer has not been explored. The major mechanisms of gemcitabine chemoresistance are related to drug uptake, metabolism, and action. One of the common causes of tumor multidrug resistance (MDR) to chemotherapy in cancer cells is that transporter proteins increase intracellular drug efflux and decrease drug concentrations by inducing anti-apoptotic mechanisms. It has been reported that gemcitabine binds to MDR1 with high affinity. The purpose of this research was to investigate the potential mechanisms by which EGR1 associates with MDR1 to regulate gemcitabine resistance in pancreatic cancer cells. METHODS The following in vitro and in vivo techniques were used in this research to explore the potential mechanisms by which EGR1 binds to MDR1 to regulate gemcitabine resistance in pancreatic cancer cells. Cell culture; in vitro and in vivo study of EGR1 function by loss of function analysis. Binding of EGR1 to the MDR1 promoter was detected using the ChIP assay. qRT-PCR, Western blot assays to detect protein and mRNA expression; use of Annexin V apoptosis detection assay to test apoptosis; CCK8, Edu assay to test cell proliferation viability. The animal model of pancreatic cancer subcutaneous allograft was constructed and the tumours were stained with hematoxylin eosin and Ki-67 expression was detected using immunohistochemistry. FINDINGS We revealed that EGR1 expression was increased in different pancreatic cancer cell lines compared to normal pancreatic ductal epithelial cells. Moreover, gemcitabine treatment induced upregulation of EGR1 expression in a dose- and time-dependent manner. EGR1 is significantly enriched in the MDR1 promoter sequence.Upon knockdown of EGR1, cell proliferation was impaired in CFPAC-1 and PANC-1 cell lines, apoptosis was enhanced and MDR1 expression was decreased, thereby partially reversing gemcitabine chemoresistance. In animal experiments, knockdown of EGR1 enhanced the inhibitory effect of gemcitabine on tumor growth compared with the sh-NC group. CONCLUSIONS Our study suggests that EGR1 may be involved in the regulation of MDR1 to enhance gemcitabine resistance in pancreatic cancer cells. EGR1 could be a novel therapeutic target to overcome gemcitabine resistance in pancreatic cancer.
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Affiliation(s)
- Zhe Yang
- Department of Gastroenterology, Guangxi Medical University Cancer Hospital, No 71 Hedi Road, Nanning, Guangxi Zhuang Autonomous Region, PR China
| | - Feiran Chen
- Department of Gastroenterology, The First Affiliated Hospital of Guangxi Medical University, No 6 Shuangyong Road, Nanning, Guangxi Zhuang Autonomous Region, PR China
| | - Dafu Wei
- Department of Gastroenterology, The First Affiliated Hospital of Guangxi Medical University, No 6 Shuangyong Road, Nanning, Guangxi Zhuang Autonomous Region, PR China
| | - Fengping Chen
- Department of Gastroenterology, The First Affiliated Hospital of Guangxi Medical University, No 6 Shuangyong Road, Nanning, Guangxi Zhuang Autonomous Region, PR China
| | - Haixing Jiang
- Department of Gastroenterology, The First Affiliated Hospital of Guangxi Medical University, No 6 Shuangyong Road, Nanning, Guangxi Zhuang Autonomous Region, PR China.
| | - Shanyu Qin
- Department of Gastroenterology, The First Affiliated Hospital of Guangxi Medical University, No 6 Shuangyong Road, Nanning, Guangxi Zhuang Autonomous Region, PR China.
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3
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Wang S, Ma J, Li X, Xian X, Tan G, Cai H, Yang B, Zhang A, Guo J, Gu G, Meng Z, Fu B. EGR-1 Contributes to Pulmonary Edema by Regulating the Epithelial Sodium Channel in Lipopolysaccharide-Induced Acute Lung Injury. Immunol Invest 2023; 52:925-939. [PMID: 37732637 DOI: 10.1080/08820139.2023.2256778] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/22/2023]
Abstract
Acute lung injury (ALI) is a common lung disease with increasing morbidity and mortality rates due to the lack of specific drugs. Impaired alveolar fluid clearance (AFC) is a primary pathological feature of ALI. Epithelial sodium channel (ENaC) is a primary determinant in regulating the transport of Na+ and the clearance of alveolar edema fluid. Therefore, ENaC is an important target for the development of drugs for ALI therapy. However, the role of ENaC in the progression of ALI remains unclear. Inhibition of early growth response factor (EGR-1) expression has been reported to induce a protective effect on ALI; therefore, we evaluated whether EGR-1 participates in the progression of ALI by regulating ENaC-α in alveolar epithelium. We investigated the potential mechanism of EGR-1-mediated regulation of ENaC in ALI. We investigated whether EGR-1 aggravates the pulmonary edema response in ALI by regulating ENaC. ALI mouse models were established by intrabronchial injection of lipopolysaccharides (LPS). Lentiviruses with EGR-1 knockdown were transfected into LPS-stimulated A549 cells. We found that EGR-1 expression was upregulated in the lung tissues of ALI mice and in LPS-induced A549 cells, and was negatively correlated with ENaC-α expression. Knockdown of EGR-1 increased ENaC-α expression and relieved cellular edema in ALI. Moreover, EGR-1 regulated ENaC-α expression at the transcriptional level, and correspondingly promoted pulmonary edema and aggravated ALI symptoms. In conclusion, our study demonstrated that EGR-1 could promote pulmonary edema by downregulating ENaC-α at the transcriptional level in ALI. Our study provides a new potential therapeutic strategy for treatment of ALI.
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Affiliation(s)
- Song Wang
- Precision Biomedical Laboratory, Liaocheng People's Hospital, Liaocheng, China
| | - Jing Ma
- Office of Academic Research, Liaocheng People's Hospital, Liaocheng, China
| | - Xin Li
- Department of Clinical Laboratory, Zibo Central Hospital, Zibo, China
| | - Xinmiao Xian
- Precision Biomedical Laboratory, Liaocheng People's Hospital, Liaocheng, China
| | - Guikun Tan
- Pharmacy Department, Liaocheng Woman and Child Health Care Hospital, Liaocheng, China
| | - Hongwei Cai
- Department of Critical Care Medicine, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, China
| | - Bingwu Yang
- Precision Biomedical Laboratory, Liaocheng People's Hospital, Liaocheng, China
| | - Anqi Zhang
- Central Laboratory, Liaocheng People's Hospital, Liaocheng, China
| | - Jianran Guo
- Precision Biomedical Laboratory, Liaocheng People's Hospital, Liaocheng, China
| | - Guohao Gu
- Precision Biomedical Laboratory, Liaocheng People's Hospital, Liaocheng, China
| | - Zhen Meng
- Biomedical Laboratory, Medical School of Liaocheng University, Liaocheng, China
| | - Bo Fu
- Precision Biomedical Laboratory, Liaocheng People's Hospital, Liaocheng, China
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4
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Ma C, Zhang N, Wang T, Guan H, Huang Y, Huang L, Zheng Y, Zhang L, Han L, Huo Y, Yang Y, Zheng H, Yang M. Inflammatory cytokine-regulated LNCPTCTS suppresses thyroid cancer progression via enhancing Snail nuclear export. Cancer Lett 2023; 575:216402. [PMID: 37741431 DOI: 10.1016/j.canlet.2023.216402] [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: 07/20/2023] [Revised: 08/30/2023] [Accepted: 09/17/2023] [Indexed: 09/25/2023]
Abstract
Lymph node metastases are commonly observed in diverse malignancies where they promote cancer progression and poor outcomes, although the molecular basis is incompletely understood. Thyroid cancer is the most prevalent endocrine neoplasm characterized by high frequency of lymph node metastases. Here, we uncover an inflammatory cytokines-controlled epigenetic program during thyroid cancer progression. LNCPTCTS acts as a novel tumor suppressive lncRNA with remarkably decreased expression in thyroid cancer specimens, especially in metastatic lymph nodes. Inflammatory cytokines TNFα or CXCL10, which are released from tumor microenvironment (TME), impair binding capabilities of the transcription factor (TF) EGR1 to the LNCPTCTS promoter and reduce the lncRNA expression in cells. Notably, LNCPTCTS binds to eEF1A2 protein and facilitates the interaction between eEF1A2 and Snail, which promotes Snail nucleus export via the RanGTP-Exp5-aa-tRNA-eEF1A2 complex. Loss of LNCPTCTS in tumors leads to accumulation of Snail in the nucleus, suppressed transcription of E-cadherin and PEBP1, reduced E-cadherin and PEBP1 protein levels, and activated epithelial-mesenchymal transition and MAPK signaling. Our results reveal what we believe to be a novel paradigm between TME and epigenetic reprogram in cancer cells which drives lymph node metastases, therefore illuminating the suitability of LNCPTCTS as a targetable vulnerability in thyroid cancer.
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Affiliation(s)
- Chi Ma
- Department of Thyroid Surgery, Yantai Yuhuangding Hospital, Shandong University, Yantai 264000, Shandong Province, China; Shandong University Cancer Center, Jinan 250117, Shandong Province, China
| | - Nasha Zhang
- Shandong Provincial Key Laboratory of Radiation Oncology, Cancer Research Center, Shandong Cancer Hospital and Institute, Jinan 250117, Shandong Province, China; Departemnt of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan 250117, Shandong Province, China; Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing 211166, Jiangsu Province, China
| | - Teng Wang
- Shandong University Cancer Center, Jinan 250117, Shandong Province, China; Shandong Provincial Key Laboratory of Radiation Oncology, Cancer Research Center, Shandong Cancer Hospital and Institute, Jinan 250117, Shandong Province, China
| | - Haixia Guan
- Department of Endocrinology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, Guangdong Province, China
| | - Yizhou Huang
- Shandong Provincial Key Laboratory of Radiation Oncology, Cancer Research Center, Shandong Cancer Hospital and Institute, Jinan 250117, Shandong Province, China
| | - Linying Huang
- Shandong Provincial Key Laboratory of Radiation Oncology, Cancer Research Center, Shandong Cancer Hospital and Institute, Jinan 250117, Shandong Province, China
| | - Yanxiu Zheng
- Shandong Provincial Key Laboratory of Radiation Oncology, Cancer Research Center, Shandong Cancer Hospital and Institute, Jinan 250117, Shandong Province, China
| | - Long Zhang
- Shandong Provincial Key Laboratory of Radiation Oncology, Cancer Research Center, Shandong Cancer Hospital and Institute, Jinan 250117, Shandong Province, China
| | - Linyu Han
- Shandong Provincial Key Laboratory of Radiation Oncology, Cancer Research Center, Shandong Cancer Hospital and Institute, Jinan 250117, Shandong Province, China
| | - Yanfei Huo
- Shandong Provincial Key Laboratory of Radiation Oncology, Cancer Research Center, Shandong Cancer Hospital and Institute, Jinan 250117, Shandong Province, China
| | - Yanting Yang
- Shandong Provincial Key Laboratory of Radiation Oncology, Cancer Research Center, Shandong Cancer Hospital and Institute, Jinan 250117, Shandong Province, China
| | - Haitao Zheng
- Department of Thyroid Surgery, Yantai Yuhuangding Hospital, Shandong University, Yantai 264000, Shandong Province, China.
| | - Ming Yang
- Shandong University Cancer Center, Jinan 250117, Shandong Province, China; Shandong Provincial Key Laboratory of Radiation Oncology, Cancer Research Center, Shandong Cancer Hospital and Institute, Jinan 250117, Shandong Province, China; Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing 211166, Jiangsu Province, China.
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5
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Hong M, Xiao K, Lin P, Lin J. Five Rutaceae family ethanol extracts alleviate H 2O 2 and LPS-induced inflammation via NF-κB and JAK-STAT3 pathway in HaCaT cells. Chin J Nat Med 2022; 20:937-947. [PMID: 36549807 DOI: 10.1016/s1875-5364(22)60217-6] [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: 05/12/2022] [Indexed: 12/24/2022]
Abstract
This study was designed to investigate the effects of five Rutaceae family ethanol extracts (FRFEE): Citrus medica Linn (CML), Citrus aurantium L. Cv. Daidai (CAD), Citrus medica Linn. var. sarcodactylis (Noot.) Swingle (CMS),Citrus sinensis L. Osbeck (CSO) and Zanthoxylum bungeanum Maxim (ZBM) on retarding the progression of H2O2 and LPS-induced HaCaT cells. Cell inflammatory injury model was established by H2O2 and LPS. The alleviative effects of FRFEE were evaluated by detecting the activity of superoxide dismutase (SOD), glutathione (GSH) and the generation of reactive oxygen species (ROS). The inflammatory signaling pathways of NF-κB and JAK-STAT3 were detected by Western blotting, the mRNA expression levels of inflammatory factors and skin barrier factors were detected by RT-PCR. 50% ethanol extracts of five medicinal and food homologous herbs of Rutaceae family showed different levels of anti-oxidant and anti-inflammatory activities. The FRFEE effectively improved SOD and GSH content and decreased ROS levels. Meanwhile, FRFEE strongly suppressed two inflammatory signaling pathways NF-κB and JAK-STAT3. The RT-PCR examination of inflammatory factors and skin barrier factor revealed significant anti-inflammatory effects of FRFEE. It was worth noting that among the five extracts, Zanthoxylum bungeanum Maxim extract had the best anti-inflammatory and anti-oxidation effects. In addition, it could strongly inhibit the expression of psoriasis factor CCL20. In summary, these results suggested that Zanthoxylum bungeanum Maxim extract could be used as an anti-psoriatic agent in the treatment of psoriasis among FRFEE.
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Affiliation(s)
- Mengsa Hong
- School of Life sciences and Health Engineering, Jiangnan University, Wuxi 214122, China
| | - Kun Xiao
- School of Life sciences and Health Engineering, Jiangnan University, Wuxi 214122, China
| | - Pei Lin
- School of Life sciences and Health Engineering, Jiangnan University, Wuxi 214122, China.
| | - Jun Lin
- School of Life sciences and Health Engineering, Jiangnan University, Wuxi 214122, China.
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6
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Yin L, Zhang J, Sun Y. Early growth response-1 is a new substrate of the GSK3β-FBXW7 axis. Neoplasia 2022; 34:100839. [PMID: 36240645 PMCID: PMC9573921 DOI: 10.1016/j.neo.2022.100839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 09/25/2022] [Accepted: 09/26/2022] [Indexed: 11/06/2022]
Abstract
EGR1, a short-lived transcription factor, regulates several biological processes, including cell proliferation and tumor progression. Whether and how EGR1 is regulated by Cullin-RING ligases (CRLs) remains elusive. Here, we report that MLN4924, a small molecule inhibitor of neddylation, causes EGR1 accumulation by inactivating SCFFBXW7 (CRL1), which is a new E3 ligase for EGR1. Specifically, FBXW7 binds to EGR1 via its consensus binding motif/degron, whereas cancer-derived FBXW7 mutants showed a much reduced EGR1 binding. SiRNA-mediated FBXW7 knockdown caused EGR1 accumulation, whereas FBXW7 overexpression reduced EGR1 levels. Likewise, FBXW7 knockdown significantly extended EGR1 protein half-life, while FBXW7 overexpression promotes polyubiquitylation of wild-type EGR1, but not EGR1-S2A mutant with the binding site abrogated. GSK3β kinase is required for the FBXW7-EGR1 binding, and for enhanced EGR1 degradation by wild type FBXW7, but not by FBXW7 mutants. Likewise, GSK3β knockdown or treatment with GSK3β inhibitor significantly increased the EGR1 levels and extended EGR1 protein half-life, while reducing EGR1 polyubiquitylation. Hypoxia exposure reduces the EGR1 levels via enhancing the FBXW7-EGR1 binding, and FBXW7-induced EGR1 polyubiquitylation. Biologically, EGR1 knockdown suppressed cancer cell growth, whereas growth stimulation by FBXW7 knockdown is partially rescued by EGR1 knockdown. Thus, EGR1 is a new substrate of the GSK3β-FBXW7 axis, and the FBXW7-EGR1 axis coordinately regulates growth of cancer cells.
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Affiliation(s)
- Lu Yin
- Cancer Institute of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China; Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou 310029, China
| | - Jiagui Zhang
- Cancer Institute of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China; Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou 310029, China
| | - Yi Sun
- Cancer Institute of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China; Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou 310029, China; Cancer Center, Zhejiang University, Hangzhou 310058, China; Research Center for Life Science and Human Health, Binjiang Institute of Zhejiang University, Hangzhou 310053, China.
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7
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Yeo H, Ahn SS, Jung E, Lim Y, Lee YH, Shin SY. Transcription factor EGR1 regulates the expression of the clock gene PER2 under IL-4 stimulation in human keratinocytes. J Invest Dermatol 2022; 142:2677-2686.e9. [DOI: 10.1016/j.jid.2022.03.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 03/29/2022] [Accepted: 03/29/2022] [Indexed: 11/24/2022]
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8
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Wang YC, Lu YB, Huang XL, Lao YF, Zhang L, Yang J, Shi M, Ma HL, Pan YW, Zhang YN. Myeloperoxidase: a new target for the treatment of stroke? Neural Regen Res 2022; 17:1711-1716. [PMID: 35017418 PMCID: PMC8820716 DOI: 10.4103/1673-5374.332130] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Myeloperoxidase is an important inflammatory factor in the myeloid system, primarily expressed in neutrophils and microglia. Myeloperoxidase and its active products participate in the occurrence and development of hemorrhagic and ischemic stroke, including damage to the blood-brain barrier and brain. As a specific inflammatory marker, myeloperoxidase can be used in the evaluation of vascular disease occurrence and development in stroke, and a large amount of experimental and clinical data has indicated that the inhibition or lack of myeloperoxidase has positive impacts on stroke prognosis. Many studies have also shown that there is a correlation between the overexpression of myeloperoxidase and the risk of stroke. The occurrence of stroke not only refers to the first occurrence but also includes recurrence. Therefore, myeloperoxidase is significant for the clinical evaluation and prognosis of stroke. This paper reviews the potential role played by myeloperoxidase in the development of vascular injury and secondary brain injury after stroke and explores the effects of inhibiting myeloperoxidase on stroke prognosis. This paper also analyzes the significance of myeloperoxidase etiology in the occurrence and development of stroke and discusses whether myeloperoxidase can be used as a target for the treatment and prediction of stroke.
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Affiliation(s)
- Yun-Chang Wang
- The Second Clinical Medical School, Lanzhou University; Department of Neurosurgery, Lanzhou University Second Hospital, Lanzhou, Gansu Province; Xiangya Hospital, Central South University, Changsha, Hunan Province, China
| | - Yu-Bao Lu
- The Second Clinical Medical School, Lanzhou University; Department of Neurosurgery, Lanzhou University Second Hospital, Lanzhou, Gansu Province; Department of Spine Surgery, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Xiao-Lan Huang
- University of Chinese Academy of Sciences, Beijing, China
| | - Yong-Feng Lao
- The Second Clinical Medical School, Lanzhou University, Lanzhou, Gansu Province, China
| | - Lu Zhang
- The Second Clinical Medical School, Lanzhou University, Lanzhou, Gansu Province, China
| | - Jun Yang
- The Second Clinical Medical School, Lanzhou University, Lanzhou, Gansu Province, China
| | - Mei Shi
- The Second Clinical Medical School, Lanzhou University, Lanzhou, Gansu Province, China
| | - Hai-Long Ma
- The Second Clinical Medical School, Lanzhou University, Lanzhou, Gansu Province, China
| | - Ya-Wen Pan
- The Second Clinical Medical School, Lanzhou University; Department of Neurosurgery, Lanzhou University Second Hospital, Lanzhou, Gansu Province, China
| | - Yi-Nian Zhang
- The Second Clinical Medical School, Lanzhou University; Department of Neurosurgery, Lanzhou University Second Hospital, Lanzhou, Gansu Province, China
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Park M, Park SH, Park H, Kim HR, Lim HJ, Song H. ADAMTS-1: a novel target gene of an estrogen-induced transcription factor, EGR1, critical for embryo implantation in the mouse uterus. Cell Biosci 2021; 11:155. [PMID: 34348778 PMCID: PMC8336340 DOI: 10.1186/s13578-021-00672-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Accepted: 07/28/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Recently, we demonstrated that estrogen (E2) induces early growth response 1 (Egr1) to mediate its actions on the uterine epithelium by controlling progesterone receptor signaling for successful embryo implantation. EGR1 is a transcription factor that regulates the spectrum of target genes in many different tissues, including the uterus. E2-induced EGR1 regulates a set of genes involved in epithelial cell remodeling during embryo implantation in the uterus. However, only few target genes of EGR1 in the uterus have been identified. RESULT The expression of ADAM metallopeptidase with thrombospondin type 1 motif 1 (Adamts-1) was significantly downregulated in the uteri of E2-treated ovariectomized (OVX) Egr1(-/-) mice. Immunostaining of ADAMTS-1 revealed its exclusive expression in the uterine epithelium of OVX wild-type but not Egr1(-/-) mice treated with E2. The expression profiles of Adamts-1 and Egr1 were similar in the uteri of E2-treated OVX mice at various time points tested. Pre-treatment with ICI 182, 780, a nuclear estrogen receptor (ER) antagonist, effectively inhibited the E2-dependent induction of Egr1 and Adamts-1. Pharmacologic inhibition of E2-induced ERK1/2 or p38 phosphorylation interfered with the induction of EGR1 and ADAMTS-1. Furthermore, ADAMTS-1, as well as EGR1, was induced in stroma cells surrounding the implanting blastocyst during embryo implantation. Transient transfection with EGR1 expression vectors significantly induced the expression of ADAMTS-1. Luciferase activity of the Adamts-1 promoter containing EGR1 binding sites (EBSs) was increased by EGR1 in a dose-dependent manner, suggesting functional regulation of Adamts-1 transcription by EGR1. Site-directed mutagenesis of EBS on the Adamts-1 promoter demonstrated that EGR1 directly binds to the EBS at -1151/-1134 among four putative EBSs. CONCLUSIONS Collectively, we have demonstrated that Adamts-1 is a novel target gene of E2-ER-MAPK-EGR1, which is critical for embryo implantation in the mouse uterus during early pregnancy.
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Affiliation(s)
- Mira Park
- Department of Biomedical Science, CHA University, Seongnam, Gyeonggi-do, 13488, Republic of Korea
| | - So Hee Park
- Department of Biomedical Science, CHA University, Seongnam, Gyeonggi-do, 13488, Republic of Korea
| | - Hyunsun Park
- Department of Biomedical Science, CHA University, Seongnam, Gyeonggi-do, 13488, Republic of Korea
| | - Hye-Ryun Kim
- Department of Biomedical Science, CHA University, Seongnam, Gyeonggi-do, 13488, Republic of Korea
| | - Hyunjung J Lim
- Department of Veterinary Medicine, School of Veterinary Medicine, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul, 05029, South Korea.
| | - Haengseok Song
- Department of Biomedical Science, CHA University, Seongnam, Gyeonggi-do, 13488, Republic of Korea.
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Mahendra CK, Abidin SAZ, Htar TT, Chuah LH, Khan SU, Ming LC, Tang SY, Pusparajah P, Goh BH. Counteracting the Ramifications of UVB Irradiation and Photoaging with Swietenia macrophylla King Seed. Molecules 2021; 26:molecules26072000. [PMID: 33916053 PMCID: PMC8037697 DOI: 10.3390/molecules26072000] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 03/24/2021] [Accepted: 03/26/2021] [Indexed: 11/16/2022] Open
Abstract
In this day and age, the expectation of cosmetic products to effectively slow down skin photoaging is constantly increasing. However, the detrimental effects of UVB on the skin are not easy to tackle as UVB dysregulates a wide range of molecular changes on the cellular level. In our research, irradiated keratinocyte cells not only experienced a compromise in their redox system, but processes from RNA translation to protein synthesis and folding were also affected. Aside from this, proteins involved in various other processes like DNA repair and maintenance, glycolysis, cell growth, proliferation, and migration were affected while the cells approached imminent cell death. Additionally, the collagen degradation pathway was also activated by UVB irradiation through the upregulation of inflammatory and collagen degrading markers. Nevertheless, with the treatment of Swietenia macrophylla (S. macrophylla) seed extract and fractions, the dysregulation of many genes and proteins by UVB was reversed. The reversal effects were particularly promising with the S. macrophylla hexane fraction (SMHF) and S. macrophylla ethyl acetate fraction (SMEAF). SMHF was able to oppose the detrimental effects of UVB in several different processes such as the redox system, DNA repair and maintenance, RNA transcription to translation, protein maintenance and synthesis, cell growth, migration and proliferation, and cell glycolysis, while SMEAF successfully suppressed markers related to skin inflammation, collagen degradation, and cell apoptosis. Thus, in summary, our research not only provided a deeper insight into the molecular changes within irradiated keratinocytes, but also serves as a model platform for future cosmetic research to build upon. Subsequently, both SMHF and SMEAF also displayed potential photoprotective properties that warrant further fractionation and in vivo clinical trials to investigate and obtain potential novel bioactive compounds against photoaging.
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Affiliation(s)
- Camille Keisha Mahendra
- Biofunctional Molecule Exploratory Research Group, School of Pharmacy, Monash University Malaysia, Bandar Sunway 47500, Malaysia; (C.K.M.); (T.T.H.); (L.-H.C.); (S.U.K.)
| | - Syafiq Asnawi Zainal Abidin
- Liquid Chromatography Mass Spectrometry (LCMS) Platform, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway 47500, Malaysia;
| | - Thet Thet Htar
- Biofunctional Molecule Exploratory Research Group, School of Pharmacy, Monash University Malaysia, Bandar Sunway 47500, Malaysia; (C.K.M.); (T.T.H.); (L.-H.C.); (S.U.K.)
| | - Lay-Hong Chuah
- Biofunctional Molecule Exploratory Research Group, School of Pharmacy, Monash University Malaysia, Bandar Sunway 47500, Malaysia; (C.K.M.); (T.T.H.); (L.-H.C.); (S.U.K.)
| | - Shafi Ullah Khan
- Biofunctional Molecule Exploratory Research Group, School of Pharmacy, Monash University Malaysia, Bandar Sunway 47500, Malaysia; (C.K.M.); (T.T.H.); (L.-H.C.); (S.U.K.)
- Department of Pharmacy, Abasyn University, Peshawar 25000, Pakistan
| | - Long Chiau Ming
- PAP Rashidah Sa’adatul Bolkiah Institute of Health Sciences, Universiti Brunei Darussalam, Gadong BE1410, Brunei;
| | - Siah Ying Tang
- Chemical Engineering Discipline, School of Engineering, Monash University Malaysia, Bandar Sunway 47500, Malaysia;
- Advanced Engineering Platform, School of Engineering, Monash University Malaysia, Bandar Sunway 47500, Malaysia
- Tropical Medicine and Biology Platform, School of Science, Monash University Malaysia, Bandar Sunway 47500, Malaysia
| | - Priyia Pusparajah
- Medical Health and Translational Research Group, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Bandar Sunway 47500, Malaysia
- Correspondence: (P.P.); (B.H.G.)
| | - Bey Hing Goh
- Biofunctional Molecule Exploratory Research Group, School of Pharmacy, Monash University Malaysia, Bandar Sunway 47500, Malaysia; (C.K.M.); (T.T.H.); (L.-H.C.); (S.U.K.)
- College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China
- Health and Well-Being Cluster, Global Asia in the 21st Century (GA21) Platform, Monash University Malaysia, Bandar Sunway 47500, Malaysia
- Correspondence: (P.P.); (B.H.G.)
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Identification of Beilschmiedia tsangii Root Extract as a Liver Cancer Cell-Normal Keratinocyte Dual-Selective NRF2 Regulator. Antioxidants (Basel) 2021; 10:antiox10040544. [PMID: 33915987 PMCID: PMC8066689 DOI: 10.3390/antiox10040544] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Accepted: 03/30/2021] [Indexed: 12/12/2022] Open
Abstract
Transcription factor nuclear factor erythroid 2-related factor 2 (NRF2) plays a crucial role in regulating the expression of genes participating in cellular defense mechanisms against oxidative or xenobiotic insults. However, there is increasing evidence showing that hyperactivation of NRF2 is associated with chemoresistance in several cancers, including hepatocellular carcinoma (HCC), thus making NRF2 an attractive target for cancer therapy. Another important issue in cancer medication is the adverse effects of these substances on normal cells. Here, we attempted to identify a dual-selective NRF2 regulator that exerts opposite effects on NRF2-hyperactivated HCC cells and normal keratinocytes. An antioxidant response element driven luciferase reporter assay was established in Huh7 and HaCaT cells as high-throughput screening platforms. Screening of 3,000 crude extracts from the Taiwanese Indigenous Plant Extract Library resulted in the identification of Beilschmiedia tsangii (BT) root extract as a dual-selective NRF2 regulator. Multiple compounds were found to contribute to the dual-selective effects of BT extract on NRF2 signaling in two cell lines. BT extract reduced NRF2 protein level and target gene expression levels in Huh7 cells but increased them in HaCaT cells. Furthermore, notable combinatory cytotoxic effects of BT extract and sorafenib on Huh7 cells were observed. On the contrary, sorafenib-induced inflammatory reactions in HaCaT cells were reduced by BT extract. In conclusion, our results suggest that the combination of a selective NRF2 activator and inhibitor could be a practical strategy for fine-tuning NRF2 activity for better cancer treatment and that plant extracts or partially purified fractions could be a promising source for the discovery of dual-selective NRF2 regulators.
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12
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Wang B, Guo H, Yu H, Chen Y, Xu H, Zhao G. The Role of the Transcription Factor EGR1 in Cancer. Front Oncol 2021; 11:642547. [PMID: 33842351 PMCID: PMC8024650 DOI: 10.3389/fonc.2021.642547] [Citation(s) in RCA: 93] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 02/25/2021] [Indexed: 12/12/2022] Open
Abstract
Early growth response factor 1 (EGR1) is a transcription factor that is mainly involved in the processes of tissue injury, immune responses, and fibrosis. Recent studies have shown that EGR1 is closely related to the initiation and progression of cancer and may participate in tumor cell proliferation, invasion, and metastasis and in tumor angiogenesis. Nonetheless, the specific mechanism whereby EGR1 modulates these processes remains to be elucidated. This review article summarizes possible mechanisms of action of EGR1 in tumorigenesis and tumor progression and may serve as a reference for clinical efficacy predictions and for the discovery of new therapeutic targets.
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Affiliation(s)
- Bin Wang
- Department of Neurosurgery, The First Hospital of Jilin University, Changchun, China
| | - Hanfei Guo
- Cancer Center, The First Hospital of Jilin University, Changchun, China
| | - Hongquan Yu
- Department of Neurosurgery, The First Hospital of Jilin University, Changchun, China
| | - Yong Chen
- Department of Neurosurgery, The First Hospital of Jilin University, Changchun, China
| | - Haiyang Xu
- Department of Neurosurgery, The First Hospital of Jilin University, Changchun, China
| | - Gang Zhao
- Department of Neurosurgery, The First Hospital of Jilin University, Changchun, China
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13
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Shin SY, Koh D, Lim Y, Lee YH. Inhibition of EGR-1-dependent MMP1 transcription by ethanol extract of Ageratum houstonianum in HaCaT keratinocytes. Mol Biol Rep 2021; 48:1-11. [PMID: 33449301 DOI: 10.1007/s11033-020-06091-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Accepted: 12/14/2020] [Indexed: 11/28/2022]
Abstract
Matrix metalloproteinase 1 (MMP-1) initiates the breakdown of matrix networks by cleaving fibrillar collagen during the pathophysiological progression of skin aging. Ageratum houstonianum ethanol extract (AHE) has been used as a traditional herbal medicine to treat external wounds and skin diseases. However, the mechanism of action underlying A. houstonianum-mediated modulation of skin aging has not been investigated. In this study, we evaluated the effect of AHE on MMP-1 expression in HaCaT keratinocytes. Gene expression was analyzed by Reverse transcription-PCR (RT-PCR), Quantitative real-time PCR (Q-PCR), gene promoter-reporter assay, and immunoblotting. We found that AHE abrogated TNFα-induced MMP1 expression at the transcriptional level via the suppression of ERK1/2 mitogen-activated protein kinase (MAPK)-mediated Early Growth Response 1 (EGR1) expression. We also demonstrated that β-caryophyllene, a cannabinoid receptor 2 (CB2) agonist, is a functional component of the AHE that inhibits TNFα-induced EGR-1 and MMP1 expression. AHE exerts inhibitory activity on TNFα-induced MMP1 expression at the transcription level through EGR-1 downregulation in keratinocytes. β-Caryophyllene is a bioactive ingredient of AHE that is responsible for the inhibition of TNFα-induced EGR1 expression. β-Caryophyllene can be used as a potential agent to prevent inflammation-induced skin aging.
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Affiliation(s)
- Soon Young Shin
- Department of Biological Sciences, Konkuk University, Seoul, 05029, Republic of Korea.,Cancer and Metabolism Institute, Konkuk University, Seoul, 05029, Republic of Korea
| | - Dongsoo Koh
- Department of Applied Chemistry, Dongduk Women's University, Seoul, 02748, Republic of Korea
| | - Yoongho Lim
- Division of Bioscience and Biotechnology, BMIC, Konkuk University, Seoul, 05029, Republic of Korea
| | - Young Han Lee
- Department of Biological Sciences, Konkuk University, Seoul, 05029, Republic of Korea. .,Cancer and Metabolism Institute, Konkuk University, Seoul, 05029, Republic of Korea.
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14
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Yeo H, Ahn SS, Lee JY, Shin SY. EGR-1 acts as a transcriptional activator of KLK7 under IL-13 stimulation. Biochem Biophys Res Commun 2020; 534:303-309. [PMID: 33276948 DOI: 10.1016/j.bbrc.2020.11.089] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Accepted: 11/22/2020] [Indexed: 01/20/2023]
Abstract
Kallikrein-related peptidase 7 (KLK7) is a chymotrypsin-like serine peptidase that plays a crucial role in regulating skin desquamation. KLK7 expression is highly upregulated in atopic dermatitis (AD) skin lesions in both humans and mice. Th2-lymphocyte-derived cytokines, including interleukin (IL)-4 and IL-13, have been shown to promote KLK7 expression in keratinocytes in patients with AD. However, the molecular mechanism underlying KLK7 expression remains poorly understood. Here, we demonstrated that the EGR-1-binding sequence (EBS) in the promoter region of KLK7 played a crucial role in IL-13-induced KLK7 transcription. Disruption of the EBS induced by a point mutation inhibited IL-13-induced KLK7 promoter activity. EGR-1 was shown to directly bind to the EBS, and EGR1 knockdown with shRNA abrogated IL-13-induced KLK7 expression. Using Egr1 knockout mice, we showed that Egr-1 was necessary for KLK7 expression in AD-like lesions induced by the repeated topical application of 2,4-dinitrobenzene on the dorsal skin of mice. We also demonstrated that the ERK1/2 mitogen-activated protein kinase (MAPK) pathway was responsible for EGR-1-dependent KLK7 transcription in response to IL-13 stimulation. Our findings delineate a signaling pathway that contributes to the regulation of KLK7 expression through the IL13-ERK MAPK-EGR1 signaling axis.
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Affiliation(s)
- Hyunjin Yeo
- Department of Biological Sciences, Sanghuh College of Life Sciences, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul, 05029, Republic of Korea
| | - Sung Shin Ahn
- Department of Biological Sciences, Sanghuh College of Life Sciences, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul, 05029, Republic of Korea
| | - Jeong Yeon Lee
- Department of Biological Sciences, Sanghuh College of Life Sciences, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul, 05029, Republic of Korea
| | - Soon Young Shin
- Department of Biological Sciences, Sanghuh College of Life Sciences, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul, 05029, Republic of Korea; Cancer and Metabolism Institute, Konkuk University, Seoul, Republic of Korea.
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