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Li J, Zhao Z, You D, Xie Y, Feng Y, Li X, Cui Z, Fuai L. Hemiprotonic ph-ph + with two targets inhibits metastatic breast cancer and concurrent candidiasis. Biochem Pharmacol 2024; 226:116394. [PMID: 38942090 DOI: 10.1016/j.bcp.2024.116394] [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: 03/26/2024] [Revised: 05/22/2024] [Accepted: 06/25/2024] [Indexed: 06/30/2024]
Abstract
Concurrent infection in breast cancer patients is the direct cause of the high mortality rate of the disease. However, there is no available method to increase the survival rate until now. To address the problem, we propose one drug with two target strategy to treat the refractory disease. A small chemical, ph-ph+, was attempted to be used in the study to explore the feasibility of the approach in anticancer and antifungus at the same time. The results showed that ph-ph+ could prevent the proliferation and metastasis of breast cancer cells, and kill C. albicans simultaneously. The molecular mechanism was associated with the activation of an evolutionarily conserved protease CLpP in the cancer and C. albicans cells. Also, the signaling pathway mediated by PLAGL2 that highly expressed in cancer cells participated in preventing cell metastasis and inducing apoptosis of ph-ph+. The one drug with dual targets inhibited the growth and metastasis of the cancer cells, and meanwhile eliminated C. albicans in tissues in the experimental animals. The results suggested that ph-ph+ with dual targets of CLpP and PLAGL2 would be a feasible approach to prolong the survival rate in patients with metastatic breast cancer and pathogenic infection.
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Affiliation(s)
- Jingli Li
- School of Pharmaceutical Sciences, Southwest University, China
| | - Zizhen Zhao
- School of Pharmaceutical Sciences, Southwest University, China
| | - Dongmei You
- School of Pharmaceutical Sciences, Southwest University, China
| | - Yafang Xie
- School of Pharmaceutical Sciences, Southwest University, China
| | - Yixiao Feng
- School of Pharmaceutical Sciences, Southwest University, China
| | - Xiaorong Li
- School of Pharmaceutical Sciences, Southwest University, China
| | - Zhihong Cui
- School of Pharmaceutical Sciences, Southwest University, China.
| | - Ling Fuai
- School of Pharmaceutical Sciences, Southwest University, China.
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Li G, Chen W, Jiang K, Huang J, Zhong J, Liu X, Wei T, Gong R, Li Z, Zhu J, Shi H, Lei J. Exosome-mediated Delivery of miR-519e-5p Promotes Malignant Tumor Phenotype and CD8+ T-Cell Exhaustion in Metastatic PTC. J Clin Endocrinol Metab 2024; 109:1601-1617. [PMID: 38078691 DOI: 10.1210/clinem/dgad725] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Indexed: 05/18/2024]
Abstract
CONTEXT Distant metastases are the primary cause of therapy failure and mortality in patients with papillary thyroid carcinomas (PTCs). However, the underlying mechanism responsible for the initiation of tumor cell dissemination and metastasis in PTCs has rarely been investigated. OBJECTIVE The aim of this study was to investigate effects and underlying molecular mechanisms of circulating exosomal microRNAs (miRNAs) in distant metastatic PTCs. METHODS The most relevant circulating exosomal miRNA to distant metastatic PTCs were verified between distant metastatic PTCs and nondistant metastatic PTCs by miRNA microarray, quantitative real-time polymerase chain reaction (qRT-PCR) assays and receiver operating characteristic (ROC) curves. The parental and recipient cells of that circulating exosomal miRNA were then explored. In vitro and in vivo experiments were further performed to elucidate the function and potential mechanisms of circulating exosomal miRNAs that contribute to the development of distant metastases. RESULTS We determined that PTC-derived exosomal miR-519e-5p was significantly upregulated in the circulatory system in distant metastatic PTCs. Further tests demonstrated that PTC cells can acquire a more malignant phenotype via hnRNPA2B1-mediated sorting of tumor suppressor miR-519e-5p into exosomes to activate Wnt signaling pathway via upregulating PLAGL2. Furthermore, miR-519e-5p included in PTC-derived exosomes can be transferred to recipient CD8+ T cells and aid in tumor immune escape in distant organs through inhibiting Notch signaling pathway by downregulating NOTCH2. CONCLUSION Our findings highlight the dual role of PTC-derived exosomal miR-519e-5p in distant metastasis, which may improve our understanding of exosome-mediated distant metastatic mechanisms.
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Affiliation(s)
- Genpeng Li
- Division of Thyroid Surgery, Department of General Surgery, West China Hospital, Sichuan University, Chengdu, 610041, China
- Laboratory of Thyroid and Parathyroid Disease, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Wenjie Chen
- Division of Thyroid Surgery, Department of General Surgery, West China Hospital, Sichuan University, Chengdu, 610041, China
- Laboratory of Thyroid and Parathyroid Disease, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Ke Jiang
- Head and Neck Surgery, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China
| | - Jing Huang
- Division of Thyroid Surgery, Department of General Surgery, West China Hospital, Sichuan University, Chengdu, 610041, China
- Laboratory of Thyroid and Parathyroid Disease, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Jinjing Zhong
- Department of Pathology, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Xiaowei Liu
- State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Tao Wei
- Division of Thyroid Surgery, Department of General Surgery, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Rixiang Gong
- Division of Thyroid Surgery, Department of General Surgery, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Zhihui Li
- Division of Thyroid Surgery, Department of General Surgery, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Jingqiang Zhu
- Division of Thyroid Surgery, Department of General Surgery, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Hubing Shi
- State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Jianyong Lei
- Division of Thyroid Surgery, Department of General Surgery, West China Hospital, Sichuan University, Chengdu, 610041, China
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Chen H, Yang W, Li Y, Ji Z. PLAGL2 promotes bladder cancer progression via RACGAP1/RhoA GTPase/YAP1 signaling. Cell Death Dis 2023; 14:433. [PMID: 37454211 PMCID: PMC10349853 DOI: 10.1038/s41419-023-05970-2] [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: 03/16/2023] [Revised: 06/21/2023] [Accepted: 07/06/2023] [Indexed: 07/18/2023]
Abstract
PLAGL2 is upregulated in various tumors, including bladder cancer (BCa). However, the mechanisms underlying the tumorigenic effects of PLAGL2 in BCa remain unclear. In our study, we proved that PLAGL2 was overexpressed in BCa tissues and correlated with decreased survival. Functionally, PLAGL2 deficiency significantly suppressed the proliferation and metastasis of BCa cells in vitro and in vivo. RNA sequencing, qRT‒PCR, immunoblotting, immunofluorescence staining, luciferase reporter, and ChIP assays revealed that overexpressed PLAGL2 disrupted the Hippo pathway and increased YAP1/TAZ activity by transactivating RACGAP1. Further investigations demonstrated that PLAGL2 activated YAP1/TAZ signaling via RACGAP1-mediated RhoA activation. Importantly, the RhoA inhibitor simvastatin or the YAP1/TAZ inhibitor verteporfin abrogated the proproliferative and prometastatic effects of BCa enhanced by PLAGL2. These findings suggest that PLAGL2 promotes BCa progression via RACGAP1/RhoA GTPase/YAP1 signaling. Hence, the core nodes of signaling may be promising therapeutic targets for BCa.
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Affiliation(s)
- Hualin Chen
- Department of Urology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No.1 Shuaifuyuan Wangfujing Dongcheng District, Beijing, 100730, China
| | - Wenjie Yang
- Department of Urology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No.1 Shuaifuyuan Wangfujing Dongcheng District, Beijing, 100730, China
| | - Yingjie Li
- Department of Urology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No.1 Shuaifuyuan Wangfujing Dongcheng District, Beijing, 100730, China
| | - Zhigang Ji
- Department of Urology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No.1 Shuaifuyuan Wangfujing Dongcheng District, Beijing, 100730, China.
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Chen W, He Q, Liu J, Li N, Xiao K, Chen H. PLAGL2 promotes Snail expression and gastric cancer progression via UCA1/miR-145-5p/YTHDF1 axis. Carcinogenesis 2023; 44:328-340. [PMID: 36999803 DOI: 10.1093/carcin/bgad016] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 03/13/2023] [Accepted: 03/30/2023] [Indexed: 04/01/2023] Open
Abstract
OBJECTIVES Although great progress has made in gastric cancer (GC) in the past years, the overall 5-year survival rate remains to be low for advanced GC patients. A recent study showed that PLAGL2 was increased in GC and enhanced the proliferation and metastasis of GC. Nevertheless, the underlying mechanism still needs to be investigated. METHODS Gene and protein expressions were assessed using RT-qPCR and western blot. The migration, proliferation and invasion of GC cells were examined using scratch assay, CCK-8 assay and Transwell assay, respectively. ChIP-PCR, dual-luciferase assay, RIP-qPCR and CoiP were utilized to confirm the interaction among PLAGL2, UCA1, miR-145-5p and YTHDF1 as well as METTL3, YTHDF1 and eEF-2. A mouse xenograft model was used utilized to further confirm the regulatory network. RESULTS PLAGL2 bound to the upstream promoter of UCA1, which regulated YTHDF1 by sponging miR-145-5p. METTL3 can mediate the m6A modification level of Snail. YTHDF1 recognized m6A-modified Snail by interacting with eEF-2 and thus promoted Snail expression, which eventually induced epithelial-mesenchymal transition (EMT) in GC cells and metastasis of GC. CONCLUSIONS Overall, our study demonstrates that PLAGL2 enhances Snail expression and GC progression via the UCA1/miR-145-5p/YTHDF1 axis, suggesting that PLAGL2 may become a therapeutic target for GC treatment.
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Affiliation(s)
- Wen Chen
- Department of Gastroenterology, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421001, Hunan Province, P.R. China
| | - Qunjun He
- Department of Quality Management and Information Statistics, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421001, Hunan Province, P.R. China
| | - Jingjing Liu
- Department of Gastroenterology, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421001, Hunan Province, P.R. China
| | - Ni Li
- Department of Gastroenterology, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421001, Hunan Province, P.R. China
| | - Kai Xiao
- Department of Gastroenterology, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421001, Hunan Province, P.R. China
| | - Honghui Chen
- Department of Gastroenterology, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421001, Hunan Province, P.R. China
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Tong X, Liu YS, Tong R, Tang WW, Li XM, Wang CY, Wang YP. TEAD4 predicts poor prognosis and transcriptionally targets PLAGL2 in serous ovarian cancer. Hum Cell 2023:10.1007/s13577-023-00908-4. [PMID: 37145265 DOI: 10.1007/s13577-023-00908-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 04/15/2023] [Indexed: 05/06/2023]
Abstract
The oncogenic function of TEA domain transcription factor 4 (TEAD4) has been confirmed in multiple human malignancies, while its potential role and regulatory mechanism in serous ovarian cancer progression are left unknown. By the gene expression analyses from Gene Expression Profiling Interactive Analysis (GEPIA) database, TEAD4 expression is shown to be up-regulated in serous ovarian cancer samples. Here, we confirmed the high expression of TEAD4 in clinical serous ovarian cancer specimens. In the following functional experiments, we found that TEAD4 overexpression promoted serous ovarian cancer malignant phenotypes, including proliferation, migration and invasion in serous ovarian cancer SK-OV-3 and OVCAR-3 cells, while TEAD4 knockout exerted the opposite function. The tumor growth inhibition of TEAD4 depletion was also affirmed by a Xenograft model in mice. In addition, this phenotypic deterioration induced by TEAD4 overexpression was diminished by PLAG1 like zinc finger 2 (PLAGL2) silencing. More importantly, combined with the results of the dual-luciferase assay, the transcriptional regulation of TEAD4 on PLAGL2 promoter was evidenced. Our results showed that the cancer-promoting gene TEAD4 was involved in serous ovarian cancer progression via targeting PLAGL2 at the transcriptional level.
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Affiliation(s)
- Xin Tong
- Department of Interventional, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, 110042, China
| | - Yi-Si Liu
- Department of Gynecology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, 44 Xiaoheyan Road, Dadong District, Shenyang, 110042, China
| | - Rui Tong
- Department of Gynecology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, 44 Xiaoheyan Road, Dadong District, Shenyang, 110042, China
| | - Wei-Wei Tang
- Department of Gynecology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, 44 Xiaoheyan Road, Dadong District, Shenyang, 110042, China
| | - Xue-Mei Li
- Department of Gynecology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, 44 Xiaoheyan Road, Dadong District, Shenyang, 110042, China
| | - Chun-Yan Wang
- Department of Gynecology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, 44 Xiaoheyan Road, Dadong District, Shenyang, 110042, China
| | - Yong-Peng Wang
- Department of Gynecology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, 44 Xiaoheyan Road, Dadong District, Shenyang, 110042, China.
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Zhao P, Zhen H, Zhao H, Huang Y, Cao B. Identification of hub genes and potential molecular mechanisms related to radiotherapy sensitivity in rectal cancer based on multiple datasets. J Transl Med 2023; 21:176. [PMID: 36879254 PMCID: PMC9987056 DOI: 10.1186/s12967-023-04029-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 03/01/2023] [Indexed: 03/08/2023] Open
Abstract
BACKGROUND Radiotherapy resistance is the main cause of low tumor regression for locally advanced rectum adenocarcinoma (READ). The biomarkers correlated to radiotherapy sensitivity and potential molecular mechanisms have not been completely elucidated. METHODS A mRNA expression profile and a gene expression dataset of READ (GSE35452) were acquired from The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO) databases. Differentially expressed genes (DEGs) between radiotherapy responder and non-responder of READ were screened out. Gene ontology (GO) analysis and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis for DEGs were performed. Random survival forest analysis was used to identified hub genes by randomForestSRC package. Based on CIBERSORT algorithm, Genomics of Drug Sensitivity in Cancer (GDSC) database, Gene set variation analysis (GSVA), enrichment analysis (GSEA), nomogram, motif enrichment and non-coding RNA network analyses, the associations between hub genes and immune cell infiltration, drug sensitivity, specific signaling pathways, prognosis prediction and TF - miRNA regulatory and ceRNA network were investigated. The expressions of hub genes in clinical samples were displayed with the online Human Protein Atlas (HPA). RESULTS In total, 544 up-regulated and 575 down-regulated DEGs in READ were enrolled. Among that, three hubs including PLAGL2, ZNF337 and ALG10 were identified. These three hub genes were significantly associated with tumor immune infiltration, different immune-related genes and sensitivity of chemotherapeutic drugs. Also, they were correlated with the expression of various disease-related genes. In addition, GSVA and GSEA analysis revealed that different expression levels of PLAGL2, ZNF337 and ALG10 affected various signaling pathways related to disease progression. A nomogram and calibration curves based on three hub genes showed excellent prognosis predictive performance. And then, a regulatory network of transcription factor (ZBTB6) - mRNA (PLAGL2) and a ceRNA network of miRNA (has-miR-133b) - lncRNA were established. Finally, the results from HPA online database demonstrated the protein expression levels of PLAGL2, ZNF337 and ALG10 varied widely in READ patients. CONCLUSION These findings indicated that up-regulation of PLAGL2, ZNF337 and ALG10 in READ associated with radiotherapy response and involved in multiple process of cellular biology in tumor. They might be potential predictive biomarkers for radiotherapy sensitivity and prognosis for READ.
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Affiliation(s)
- Pengfei Zhao
- Department of Radiotherapy, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, P.R. China
| | - Hongchao Zhen
- Department of Oncology, Beijing Friendship Hospital, Capital Medical University, No.95 Yong An Road, Xicheng District, Beijing, 100050, P.R. China
| | - Hong Zhao
- Department of Radiotherapy, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, P.R. China
| | - Yongjie Huang
- Department of Radiotherapy, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, P.R. China
| | - Bangwei Cao
- Department of Oncology, Beijing Friendship Hospital, Capital Medical University, No.95 Yong An Road, Xicheng District, Beijing, 100050, P.R. China.
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Juárez-Barber E, Segura-Benítez M, Carbajo-García MC, Bas-Rivas A, Faus A, Vidal C, Giles J, Labarta E, Pellicer A, Cervelló I, Ferrero H. Extracellular vesicles secreted by adenomyosis endometrial organoids contain miRNAs involved in embryo implantation and pregnancy. Reprod Biomed Online 2023; 46:470-481. [PMID: 36697316 DOI: 10.1016/j.rbmo.2022.12.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 12/02/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022]
Abstract
RESEARCH QUESTION Do extracellular vesicles secreted by the endometrium of women with adenomyosis contain miRNAs involved in adenomyosis-related infertility? DESIGN A descriptive study using organoids from eutopic endometrium of women with adenomyosis (n = 4) generated and differentiated to secretory and gestational phases, in which miRNA cargo from extracellular vesicles secreted by these differentiated organoids in each phase was analysed by next-generation sequencing. miRNAs in secretory-extracellular vesicles and gestational-extracellular vesicles were selected based on the counts per million. miRNAs target genes in each phase were obtained from miRNet and gene ontology was used for enrichment analysis. RESULTS miRNA sequencing identified 80 miRNAs in secretory-phase extracellular vesicles, including hsa-miR-21-5p, hsa-miR-24-3p, hsa-miR-26a-5p, hsa-miR-92a-3p, hsa-miR-92b-3p, hsa-miR-200c-3p and hsa-miR-423a-5p, related to adenomyosis pathogenesis and implantation failure. Further, 60 miRNAs were identified in gestational-phase extracellular vesicles, including hsa-miR-21-5p, hsa-miR-26a-5p, hsa-miR-30a-5p, hsa-miR-30c-5p, hsa-miR-222-3p and hsa-miR-423a-5p were associated with preeclampsia and miscarriage. Among the target genes of these miRNAs, PTEN, MDM4, PLAGL2 and CELF1, whose downregulation (P = 0.0003, P < 0.0001, P = 0.0002 and P = 0.0003, respectively) contributes to adenomyosis pathogenesis, and impaired early embryo development, leading to implantation failure and miscarriage, are highlihghted. Further, functional enrichment analyses of the target genes revealed their involvement in cell differentiation, proliferation, apoptosis, cell cycle regulation and response to extracellular stimuli. CONCLUSIONS Eutopic endometrium in secretory and gestational phase from women with adenomyosis releases extracellular vesicles containing miRNAs involved in adenomyosis progression, impaired embryo implantation and pregnancy complications.
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Affiliation(s)
- Elena Juárez-Barber
- Fundación IVI, Instituto de Investigación Sanitaria La Fe, 46026 Valencia, Spain
| | - Marina Segura-Benítez
- Fundación IVI, Instituto de Investigación Sanitaria La Fe, 46026 Valencia, Spain; Departamento de Pediatría, Obstetricia y Ginecología, Universidad de Valencia, 46010 Valencia, Spain
| | - María Cristina Carbajo-García
- Fundación IVI, Instituto de Investigación Sanitaria La Fe, 46026 Valencia, Spain; Departamento de Pediatría, Obstetricia y Ginecología, Universidad de Valencia, 46010 Valencia, Spain
| | - Alba Bas-Rivas
- Fundación IVI, Instituto de Investigación Sanitaria La Fe, 46026 Valencia, Spain
| | - Amparo Faus
- Fundación IVI, Instituto de Investigación Sanitaria La Fe, 46026 Valencia, Spain
| | - Carmen Vidal
- Fundación IVI, Instituto de Investigación Sanitaria La Fe, 46026 Valencia, Spain; IVI-RMA Valencia, 46015 Valencia, Spain
| | - Juan Giles
- Fundación IVI, Instituto de Investigación Sanitaria La Fe, 46026 Valencia, Spain; IVI-RMA Valencia, 46015 Valencia, Spain
| | - Elena Labarta
- Fundación IVI, Instituto de Investigación Sanitaria La Fe, 46026 Valencia, Spain; IVI-RMA Valencia, 46015 Valencia, Spain
| | - Antonio Pellicer
- Fundación IVI, Instituto de Investigación Sanitaria La Fe, 46026 Valencia, Spain; IVI-RMA Rome, 00197 Rome, Italy
| | - Irene Cervelló
- Fundación IVI, Instituto de Investigación Sanitaria La Fe, 46026 Valencia, Spain
| | - Hortensia Ferrero
- Fundación IVI, Instituto de Investigación Sanitaria La Fe, 46026 Valencia, Spain.
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Lin Y, Lin P, Guo W, Huang J, Xu X, Zhuang X. PLAGL2 promotes the stemness and is upregulated by transcription factor E2F1 in human lung cancer. ENVIRONMENTAL TOXICOLOGY 2023; 38:941-949. [PMID: 36620907 DOI: 10.1002/tox.23739] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 12/26/2022] [Accepted: 12/27/2022] [Indexed: 06/17/2023]
Abstract
This study mainly focuses on revealing the role of PLAGL2 in lung cancer stemness. In vitro and in vivo experiments were performed to evaluate the effects of PLAGL2 on lung cancer cell stemness. Mechanistic analysis using luciferase reporter and ChIP assays were implemented to reveal the underlying mechanisms. The transcriptional factor E2F1 transcriptionally activated PLAGL2 expression via directly binding to PLAGL2 promoter in lung cancer cells. Moreover, PLAGL2 promoted the stemness of lung cancer cells dependent on E2F1-mediated transcriptional activation. This study provides a potential target for lung cancer progression.
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Affiliation(s)
- Yijian Lin
- Department of Respiratory and Critical Care Medicine, Quanzhou First Hospital Affiliated to Fujian Medical University, Quanzhou, Fujian, China
| | - Peihuang Lin
- Department of Basic Medicine, Quanzhou Medical College, Quanzhou, Fujian, China
| | - Weifeng Guo
- Department of Respiratory and Critical Care Medicine, Quanzhou First Hospital Affiliated to Fujian Medical University, Quanzhou, Fujian, China
| | - Junling Huang
- Department of Respiratory and Critical Care Medicine, Quanzhou First Hospital Affiliated to Fujian Medical University, Quanzhou, Fujian, China
| | - Xiaoting Xu
- Department of Respiratory and Critical Care Medicine, Quanzhou First Hospital Affiliated to Fujian Medical University, Quanzhou, Fujian, China
| | - Xibin Zhuang
- Department of Respiratory and Critical Care Medicine, Quanzhou First Hospital Affiliated to Fujian Medical University, Quanzhou, Fujian, China
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Li Y, Liu R, Han X, Xu W, Liu Y. PLAGL2 increases adriamycin resistance and EMT in breast cancer cells by activating the Wnt pathway. Genes Genomics 2023; 45:49-57. [PMID: 36399309 DOI: 10.1007/s13258-022-01330-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 10/14/2022] [Indexed: 11/19/2022]
Abstract
BACKGROUND Adriamycin (ADR) is an effective treatment for breast cancer; nevertheless, it is often linked with acquired resistance in breast cancer cells, reducing ADR's therapeutic efficacy and increasing the risk of recurrence and poor prognosis. It has been revealed that the zinc-finger transcription factor pleomorphic adenoma gene like-2 (PLAGL2) is required for epithelial to mesenchymal transition (EMT) in cancer cells. Recent data indicates that PLAGL2 is also involved in regulating chemotherapeutic drug resistance, albeit the exact mechanism by which this happens remains unknown. OBJECTIVE This study examines the effect of PLAGL2 on adriamycin resistance and EMT in breast cancer cells. METHODS The small interfering RNA (siRNA) targeting PLAGL2 was transfected to breast cancer cells to alter PLAGL2 expression. Cell counting kit-8 (CCK-8) and colony formation assay detected cell growth and proliferation rate. Moreover, wound-healing and transwell assays were conducted to evaluate migration and invasion. Western blot (WB) checked the apoptosis and EMT-associated proteins. RESULTS PLAGL2 expression is associated with breast cancer cells' acquired resistance to ADR in this investigation. Additionally, deletion of PLAGL2 was associated with enhanced sensitivity to ADR, reduced proliferation, migration, and invasion capabilities, increased E-cadherin levels, and reduced Wnt6, β-catenin, and DVL1 levels in ADR-resistant breast cancer cells (MCF-7/ADR and MDA-MB-231/ADR cells). PLAGL2 could bind to the promoter region of Wnt6 and promote its expression. Additionally, the results of this research established that Wnt signaling is implicated in breast cancer cells' resistance to ADR since BML-284, a Wnt signaling activator partly restored the sensitivity of MCF-7/ADR and MDA-MB-231/ADR cells to ADR. CONCLUSION PLAGL2 promotes adriamycin resistance and cell aggressiveness in breast cancer cells via activating the Wnt signaling pathway.
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Affiliation(s)
- Yuxiao Li
- Department of Basic Teaching, Zhuhai Campus of Zunyi Medical University, 368 Jinwan Road, Zhuhai, 519041, Guangdong, China
| | - Ruolin Liu
- College of Basic Medicine, Hebei Medical University, Shijiazhuang, 050000, China
| | - Xingzhao Han
- Department of Basic Teaching, Zhuhai Campus of Zunyi Medical University, 368 Jinwan Road, Zhuhai, 519041, Guangdong, China
| | - Wei Xu
- Business School of International Medicine, China Pharmaceutical University, Nanjing, 210009, China
| | - Yahui Liu
- Department of Basic Teaching, Zhuhai Campus of Zunyi Medical University, 368 Jinwan Road, Zhuhai, 519041, Guangdong, China.
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METTL14 Regulates PLAGL2/ β-Catenin Signaling Axis to Promote the Development of Nonsmall Cell Lung Cancer. JOURNAL OF ONCOLOGY 2023; 2023:4738586. [PMID: 36873735 PMCID: PMC9981300 DOI: 10.1155/2023/4738586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 10/14/2022] [Accepted: 01/28/2023] [Indexed: 02/25/2023]
Abstract
N6-methyladenosine (m6A) is an abundant eukaryotic mRNA modification involved in regulating the formation and metastasis of nonsmall cell lung cancer (NSCLC). We collected clinical NSCLC tissue and paracarcinoma tissue. Then methyltransferase-like 14 (METTL14), pleomorphic adenoma gene like-2 (PLAGL2), and β-catenin expressions were assessed using quantitative real-time PCR and western blot. PLAGL2, and β-catenin (nuclear) expressions were increased in NSCLC tissues. Cell proliferation, migration, invasion, and death were examined. PLAGL2 could activate β-catenin signaling to affect cell proliferation and migration abilities. RNA immunoprecipitation assay was operated to identify m6A modification levels of PLAGL2 after knockdown and overexpression of METTL14. PLAGL2 was regulated by METTL14-mediated m6A modification. Knockdown of METTL14 repressed cell proliferation, migration, and invasion, and promoted cell death. Interestingly, these effects were reversed when PLAGL2 was overexpressed. Finally, tumor formation in nude mice was performed to verify the role of the METTL14/PLAGL2/β-catenin signaling axis. Tumor formation in nude mice demonstrated METTL14/PLAGL2/β-catenin axis promoted NSCLC development in vivo. In brief, METTL14 promoted NSCLC development by increasing m6A methylation of PLAGL2 to activate β-catenin signaling. Our research provided essential clues for in-depth comprehension of the mechanism of NSCLC occurrence and development and also provided the basis for NSCLC treatment.
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Chen Y, Chen M, Deng K. Blocking the Wnt/β‑catenin signaling pathway to treat colorectal cancer: Strategies to improve current therapies (Review). Int J Oncol 2022; 62:24. [PMID: 36579676 PMCID: PMC9854240 DOI: 10.3892/ijo.2022.5472] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 12/02/2022] [Indexed: 12/28/2022] Open
Abstract
Colorectal cancer (CRC) is one of the most common malignant tumor types occurring in the digestive system. The incidence of CRC has exhibits yearly increases and the mortality rate among patients with CRC is high. The Wnt/β‑catenin signaling pathway, which is associated with carcinogenesis, is abnormally activated in CRC. Most patients with CRC have adenomatous polyposis coli mutations, while half of the remaining patients have β‑catenin gene mutations. Therefore, targeting the Wnt/β‑catenin signaling pathway for the treatment of CRC is of clinical value. In recent years, with in‑depth research on the Wnt/β‑catenin signaling pathway, inhibitors have been developed that are able to suppress or hinder the development and progression of CRC. In the present review, the role of the Wnt/β‑catenin signaling pathway in CRC is summarized, the research status on Wnt/β‑catenin pathway inhibitors is outlined and potential targets for inhibition of this pathway are presented.
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Affiliation(s)
- Yuxiang Chen
- Department of Gastroenterology and Hepatology, Sichuan University, Chengdu, Sichuan 610041, P.R. China,The Laboratory of Sichuan University-Oxford University Huaxi Gastrointestinal Cancer Centre, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Mo Chen
- Department of Gerontology, Tibetan Chengdu Branch Hospital of West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China,Department of Gerontology, Hospital of Chengdu Office of People's Government of Tibetan Autonomous Region, Chengdu, Sichuan 610041, P.R. China,Professor Mo Chen, Department of Gerontology, Tibetan Chengdu Branch Hospital of West China Hospital, Sichuan University, 20 Ximianqiao Cross Street, Chengdu, Sichuan 610041, P.R. China, E-mail:
| | - Kai Deng
- Department of Gastroenterology and Hepatology, Sichuan University, Chengdu, Sichuan 610041, P.R. China,The Laboratory of Sichuan University-Oxford University Huaxi Gastrointestinal Cancer Centre, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China,Correspondence to: Professor Kai Deng, Department of Gastroenterology and Hepatology, West China Hospital, Sichuan University, 37 Guoxue Lane, Chengdu, Sichuan 610041, P.R. China, E-mail:
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Post-Translational Modification of ZEB Family Members in Cancer Progression. Int J Mol Sci 2022; 23:ijms232315127. [PMID: 36499447 PMCID: PMC9737314 DOI: 10.3390/ijms232315127] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 11/23/2022] [Accepted: 11/25/2022] [Indexed: 12/03/2022] Open
Abstract
Post-translational modification (PTM), the essential regulatory mechanisms of proteins, play essential roles in physiological and pathological processes. In addition, PTM functions in tumour development and progression. Zinc finger E-box binding homeobox (ZEB) family homeodomain transcription factors, such as ZEB1 and ZEB2, play a pivotal role in tumour progression and metastasis by induction epithelial-mesenchymal transition (EMT), with activation of stem cell traits, immune evasion and epigenetic reprogramming. However, the relationship between ZEB family members' post-translational modification (PTM) and tumourigenesis remains largely unknown. Therefore, we focussed on the PTM of ZEBs and potential therapeutic approaches in cancer progression. This review provides an overview of the diverse functions of ZEBs in cancer and the mechanisms and therapeutic implications that target ZEB family members' PTMs.
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Yu S, Han R, Gan R. The Wnt/β-catenin signalling pathway in Haematological Neoplasms. Biomark Res 2022; 10:74. [PMID: 36224652 PMCID: PMC9558365 DOI: 10.1186/s40364-022-00418-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 09/12/2022] [Accepted: 09/12/2022] [Indexed: 11/10/2022] Open
Abstract
Leukaemia and lymphoma are common malignancies. The Wnt pathway is a complex network of proteins regulating cell proliferation and differentiation, as well as cancer development, and is divided into the Wnt/β-catenin signalling pathway (the canonical Wnt signalling pathway) and the noncanonical Wnt signalling pathway. The Wnt/β-catenin signalling pathway is highly conserved evolutionarily, and activation or inhibition of either of the pathways may lead to cancer development and progression. The aim of this review is to analyse the mechanisms of action of related molecules in the Wnt/β-catenin pathway in haematologic malignancies and their feasibility as therapeutic targets.
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Affiliation(s)
- Siwei Yu
- Cancer Research Institute, Key Laboratory of Cancer Cellular and Molecular Pathology in Hunan Province, Hengyang Medical School, University of South China, 421001, Hengyang, Hunan, P. R. China
| | - Ruyue Han
- Cancer Research Institute, Key Laboratory of Cancer Cellular and Molecular Pathology in Hunan Province, Hengyang Medical School, University of South China, 421001, Hengyang, Hunan, P. R. China
| | - Runliang Gan
- Cancer Research Institute, Key Laboratory of Cancer Cellular and Molecular Pathology in Hunan Province, Hengyang Medical School, University of South China, 421001, Hengyang, Hunan, P. R. China.
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Bayrak T, Çetin Z, Saygılı Eİ, Ogul H. Identifying the tumor location-associated candidate genes in development of new drugs for colorectal cancer using machine-learning-based approach. Med Biol Eng Comput 2022; 60:2877-2897. [DOI: 10.1007/s11517-022-02641-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Accepted: 07/28/2022] [Indexed: 02/07/2023]
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Weng S, Liu Z, Ren X, Xu H, Ge X, Ren Y, Zhang Y, Dang Q, Liu L, Guo C, Beatson R, Deng J, Han X. SCG2: A Prognostic Marker That Pinpoints Chemotherapy and Immunotherapy in Colorectal Cancer. Front Immunol 2022; 13:873871. [PMID: 35844556 PMCID: PMC9283651 DOI: 10.3389/fimmu.2022.873871] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 05/31/2022] [Indexed: 11/13/2022] Open
Abstract
BackgroundFluorouracil (FU)-based chemotherapy regimens are indispensable in the comprehensive treatment of colorectal cancer (CRC). However, the heterogeneity of treated individuals and the severe adverse effects of chemotherapy results in limited overall benefit.MethodsFirstly, Weighted gene co-expression network analysis (WGCNA) identified modules tightly associated with chemotherapy response. Then, the in-house cohort and prognostic cohorts from TCGA and GEO were subjected to Cox proportional hazards model and survival analysis to ascertain the predictable function of SCG2 on the prognosis of CRC patients. Finally, we performed In vitro experiments, functional analysis, somatic mutation, and copy number variation research to explore the biological characteristics of SCG2.ResultsWe identified red and green as the modules most associated with chemotherapy response, in which SCG2 was considered a risky factor with higher expression predicting poorer prognosis. SCG2 expression in the APC non-mutation group was remarkably higher than in the mutation group. The mutation frequencies of amplified genes differed significantly between different SCG2 expression subgroups. Besides, CRC cell lines with SCG2 knockdown have reduced invasive, proliferative, and proliferative capacity. We discovered that the SCG2 high expression subgroup was the immune hot type and considered more suitable for immunotherapy.ConclusionThis study demonstrates the clinical significance and biological characteristics of SCG2, which could serve as a promising biomarker to identify patients who may benefit from chemotherapy and immunotherapy.
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Affiliation(s)
- Siyuan Weng
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Interventional Institute of Zhengzhou University, Zhengzhou, China
- Interventional Treatment and Clinical Research Center of Henan Province, Zhengzhou, China
| | - Zaoqu Liu
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Interventional Institute of Zhengzhou University, Zhengzhou, China
- Interventional Treatment and Clinical Research Center of Henan Province, Zhengzhou, China
| | - Xiaofeng Ren
- Faculty of Engineering and Information Technology University of Technology Sydney, Sydney, NSW, Australia
| | - Hui Xu
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Interventional Institute of Zhengzhou University, Zhengzhou, China
- Interventional Treatment and Clinical Research Center of Henan Province, Zhengzhou, China
| | - Xiaoyong Ge
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Interventional Institute of Zhengzhou University, Zhengzhou, China
- Interventional Treatment and Clinical Research Center of Henan Province, Zhengzhou, China
| | - Yuqing Ren
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yuyuan Zhang
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Qin Dang
- Department of Colorectal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Long Liu
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Chunguang Guo
- Department of Endovascular Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Richard Beatson
- King’s College London, School of Cancer and Pharmaceutical Sciences, Guy’s Cancer Centre, London, United Kingdom
| | - Jinhai Deng
- Richard Dimbleby Laboratory of Cancer Research, School of Cancer and Pharmaceutical Sciences, King’s College London, London, United Kingdom
| | - Xinwei Han
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Interventional Institute of Zhengzhou University, Zhengzhou, China
- Interventional Treatment and Clinical Research Center of Henan Province, Zhengzhou, China
- *Correspondence: Xinwei Han,
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The Therapeutic Role of PNU-74654 in Hepatocellular Carcinoma May Involve Suppression of NF-κB Signaling. MEDICINA (KAUNAS, LITHUANIA) 2022; 58:medicina58060798. [PMID: 35744061 PMCID: PMC9228701 DOI: 10.3390/medicina58060798] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 06/07/2022] [Accepted: 06/10/2022] [Indexed: 12/12/2022]
Abstract
Background and Objectives: PNU-74654, a Wnt/β-catenin inhibitor, has reported antitumor activities; however, the therapeutic potential of PNU-74654 in hepatocellular carcinoma (HCC) has not been investigated in detail. The aim of this study was to clarify the cytotoxic effects of PNU-74654 against HCC and to uncover its molecular mechanism. Materials and Methods: HepG2 and Huh7 liver cancer cell lines were selected to determine the antitumor properties of PNU-74654. Survival of the liver cancer cells in response to PNU-74654 was assessed by cell viability assays, and the apoptosis effect of PNU-74654 was analyzed by flow cytometry and visualized by Hoechst staining. An oncology array was used to explore the underlying molecular routes of PNU-74654 action in the cells. The migration properties were examined with a wound healing assay, and western blotting was conducted to evaluate protein expression. Results: Treatment with PNU-74654 decreased cell viability and inhibited cell migration. The cell cycle analysis and Hoechst staining revealed an increase in the population of cells at the sub-G1 stage and apoptotic morphological changes in the nucleus. The oncology array identified 84 oncology-related proteins and a suppressed expression of Bcl-xL and survivin. Western blotting showed that PNU-74654 could interfere with cell cycle-related proteins through the NF-κB pathway. Conclusions: PNU-74654 shows antiproliferative and antimigration effects against HepG2 and Huh7 cells, and its antitumor activity may be attributable to its interference in cell cycle regulation and the NF-κB pathway.
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Stress-induced epinephrine promotes epithelial-to-mesenchymal transition and stemness of CRC through the CEBPB/TRIM2/P53 axis. J Transl Med 2022; 20:262. [PMID: 35672760 PMCID: PMC9172202 DOI: 10.1186/s12967-022-03467-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 05/30/2022] [Indexed: 12/11/2022] Open
Abstract
Background Previous studies have indicated that chronic emotional stressors likely participate in the occurrence of cancers. However, direct evidence connecting stress and colorectal cancer development remains almost completely unexplored. Methods Chronic stress mouse model was used to investigate the influence of stress on tumorigenesis. Several major agonists and antagonists of adrenergic receptors were applied to investigate the effects of β-adrenergic signaling on the development of CRC. Chromatin immunoprecipitation assays (CHIP) were used to investigate the binding of p53 and CEBPB to TRIM2 promoter. Mammosphere cultures, Cell Counting Kit-8 (CCK-8) assay, colony-formation assay, scratch wound healing assays, qPCR, immunofluorescence, coimmunoprecipitation and western blotting were used to explore the effect of stress-induced epinephrine on the CEBPB/TRIM2/P53 axis and the progress of CRC cells. Results In this study, we found that stress-induced epinephrine (EPI) promotes the proliferation, metastasis and CSC generation of CRC primarily through the β2-adrenergic receptor. Furthermore, our studies also confirmed that chronic stress decreased the stability of p53 protein by promoting p53 ubiquitination. Results of transcriptome sequencing indicated that TRIM2 was overexpressed in cells treated with EPI. Further studies indicated that TRIM2 could regulate the stability of p53 protein by promoting p53 ubiquitination. Finally, we further proved that CEBPB was regulated by EPI and acts as the upstream transcription factor of TRIM2. Conclusions Our studies proved that stress-induced EPI promotes the development and stemness of CRC through the CEBPB/TRIM2/P53 axis. Supplementary Information The online version contains supplementary material available at 10.1186/s12967-022-03467-8.
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Inhibitory effect of protonic bis(5-amino-1,10-phenanthroline) on proliferation of hepatocellular carcinoma and its molecular mechanism. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.103982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Daks A, Fedorova O, Parfenyev S, Nevzorov I, Shuvalov O, Barlev NA. The Role of E3 Ligase Pirh2 in Disease. Cells 2022; 11:1515. [PMID: 35563824 PMCID: PMC9101203 DOI: 10.3390/cells11091515] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 04/27/2022] [Accepted: 04/28/2022] [Indexed: 02/04/2023] Open
Abstract
The p53-dependent ubiquitin ligase Pirh2 regulates a number of proteins involved in different cancer-associated processes. Targeting the p53 family proteins, Chk2, p27Kip1, Twist1 and others, Pirh2 participates in such cellular processes as proliferation, cell cycle regulation, apoptosis and cellular migration. Thus, it is not surprising that Pirh2 takes part in the initiation and progression of different diseases and pathologies including but not limited to cancer. In this review, we aimed to summarize the available data on Pirh2 regulation, its protein targets and its role in various diseases and pathological processes, thus making the Pirh2 protein a promising therapeutic target.
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Affiliation(s)
- Alexandra Daks
- Institute of Cytology RAS, 194064 St. Petersburg, Russia; (O.F.); (S.P.); (I.N.); (O.S.)
| | | | | | | | | | - Nickolai A. Barlev
- Institute of Cytology RAS, 194064 St. Petersburg, Russia; (O.F.); (S.P.); (I.N.); (O.S.)
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Wang Q, Liu Z, Zhai G, Yu X, Ke S, Shao H, Guo J. Overexpression of GATA5 Inhibits Prostate Cancer Progression by Regulating PLAGL2 via the FAK/PI3K/AKT Pathway. Cancers (Basel) 2022; 14:cancers14092074. [PMID: 35565203 PMCID: PMC9099954 DOI: 10.3390/cancers14092074] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 04/18/2022] [Indexed: 12/17/2022] Open
Abstract
Simple Summary Prostate cancer (PCa) has the highest incidence of malignant tumors and is the second-ranked tumor-causing death of men. GATA binding protein 5 (GATA5) belongs to the GATA gene family and we found that GATA5 was downregulated in PCa tissues, but the function of GATA5 in PCa remains elusive. We found overexpression GATA5 inhibited tumor proliferation, migration, invasion and the process of epithelial–mesenchymal transition (EMT), and upregulation of GATA5 promoted PCa cell apoptosis. In addition, we disclosed that GATA5 could interact with pleomorphic adenoma gene-like-2 (PLAGL2) to regulate PCa cell growth via FAK/PI3K/AKT signaling pathway. Hence, these findings suggested that GATA5 could serve as a new therapeutic target in the future. Abstract Background: Prostate cancer (PCa) is a malignancy with high incidence and the principal cause of cancer deaths in men. GATA binding protein 5 (GATA5) belongs to the GATA gene family. GATA5 has a close association with carcinogenesis, but the role of GATA5 in PCa remains poorly understood. The aim of our present study was to probe into the effect of GATA5 on PCa progression and to elucidate the involved mechanism. Methods: The expression of GATA5 was detected in both PCa samples and PCa cell lines. GATA5 overexpression, PLAGL2 knockdown, and overexpression cell models were generated, then Western blotting experiments were utilized to validate the efficiency of transfection. The effects of GATA5 on PCa cell proliferation, metastasis, apoptosis, cell cycle progression, and EMT were detected in vitro or in vivo. Furthermore, the mechanism by which GATA5 inhibits prostate cancer progression through regulating PLAGL2 via the FAK/PI3K/AKT pathway was also explored. Results: GATA5 expression was downregulated in PCa samples and cell lines. GATA5 overexpression inhibited PCa cell proliferation and metastasis but increased the rate of apoptosis. In addition, we confirmed that GATA5 inhibited prostate cancer progression, including EMT, by regulating PLAGL2 via the FAK/PI3K/AKT pathway. Conclusion: We demonstrated that GATA5, as a tumor suppressor in PCa, inhibits PCa progression by regulating PLAGL2. These results showed that the GATA5/PLAGL2/FAK/PI3K/AKT pathway may become a new therapeutic direction for the treatment of PCa.
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Qi X, Sun Z, Li X, Jiao Y, Chen S, Song P, Qian Z, Qian J, Qiu X, Tang L. Shp2 suppresses fat accumulation in white adipose tissue by activating Wnt/β‑catenin signaling following vertical sleeve gastrectomy in obese rats with type‑2 diabetes. Exp Ther Med 2022; 23:302. [PMID: 35340882 PMCID: PMC8931631 DOI: 10.3892/etm.2022.11231] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 02/11/2022] [Indexed: 12/02/2022] Open
Abstract
Adipogenesis and fat accumulation are closely associated with the development of obesity. Sleeve gastrectomy (SG) is an effective treatment for obesity and associated metabolic disorders. Leptin is downregulated after SG and Src homology phosphatase 2 (Shp2) has an important role in leptin signaling. The role of Shp2 in SG and the mechanisms of fat reduction following SG were further investigated in the current study. Sham and SG operations were performed on obese type-2 diabetes model Sprague-Dawley rats. Primary pre-adipocytes were isolated from the inguinal white adipose tissue (ingWAT) of the rats. Shp2 expression in ingWAT pre-adipocytes was silenced using small interfering RNA transfection. Shp2 function was inhibited using the specific inhibitor, SHP099. In addition, Shp2 was overexpressed using lentivirus. Gene and protein expression analysis was performed after adipocyte differentiation. Furthermore, Shp2-overexpressing ingWAT pre-adipocytes treated with the β-catenin inhibitor, PNU-74654, were also used for gene and protein expression analysis. Adipogenic markers, including triglycerides, peroxisome proliferator-activated receptor γ (PPARγ), CCAAT/enhancer-binding protein α (Cebpα), adiponectin, fatty acid-binding protein 4 and leptin, were examined. Compared with the sham, triglyceride, leptin, PPARγ and Cebpα levels were significantly reduced in the ingWAT from the SG group. Shp2 expression levels were reduced following leptin treatment. Moreover, genetic analysis demonstrated depot-specific adipogenesis following Shp2 silencing or inhibition in ingWAT pre-adipocytes. Conversely, Shp2 overexpression decreased the expression of adipogenic markers by enhancing β-catenin expression. PNU-74654 treatment abolished the downregulation of adipogenic markers caused by Shp2 overexpression. SG decreased leptin levels in ingWAT, which in turn upregulated Shp2, and Shp2 suppressed fat accumulation and adipogenic differentiation by activating the Wnt/β-catenin signaling pathway. Overall, this may represent a potential mechanism of fat reduction in SG, and Shp2 may serve as a potential therapeutic target for the treatment of obesity and type-2 diabetes.
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Affiliation(s)
- Xiaoyang Qi
- Department of Gastrointestinal Surgery, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, Jiangsu 213000, P.R. China
| | - Ziying Sun
- Department of Orthopedics, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu 210008, P.R. China
| | - Xugang Li
- Department of Orthopedics, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu 210008, P.R. China
| | - Yuwen Jiao
- Department of Gastrointestinal Surgery, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, Jiangsu 213000, P.R. China
| | - Shuai Chen
- Department of Gastrointestinal Surgery, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, Jiangsu 213000, P.R. China
| | - Peng Song
- Department of Gastrointestinal Surgery, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, Jiangsu 213000, P.R. China
| | - Zhifen Qian
- Department of Gastrointestinal Surgery, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, Jiangsu 213000, P.R. China
| | - Jun Qian
- Department of Gastrointestinal Surgery, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, Jiangsu 213000, P.R. China
| | - Xusheng Qiu
- Department of Orthopedics, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu 210008, P.R. China
| | - Liming Tang
- Department of Gastrointestinal Surgery, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, Jiangsu 213000, P.R. China
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Tomaszewska W, Kozłowska-Masłoń J, Baranowski D, Perkowska A, Szałkowska S, Kazimierczak U, Severino P, Lamperska K, Kolenda T. miR-154 Influences HNSCC Development and Progression through Regulation of the Epithelial-to-Mesenchymal Transition Process and Could Be Used as a Potential Biomarker. Biomedicines 2021; 9:1894. [PMID: 34944712 PMCID: PMC8698850 DOI: 10.3390/biomedicines9121894] [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: 09/30/2021] [Revised: 12/03/2021] [Accepted: 12/08/2021] [Indexed: 11/16/2022] Open
Abstract
MicroRNAs and their role in cancer have been extensively studied for the past decade. Here, we analyzed the biological role and diagnostic potential of miR-154-5p and miR-154-3p in head and neck squamous cell carcinoma (HNSCC). miRNA expression analyses were performed using The Cancer Genome Atlas (TCGA) data accessed from cBioPortal, UALCAN, Santa Cruz University, and Gene Expression Omnibus (GEO). The expression data were correlated with clinicopathological parameters. The functional enrichment was assessed with Gene Set Enrichment Analysis (GSEA). The immunological profiles were assessed using the ESTIMATE tool and RNAseq data from TCGA. All statistical analyses were performed with GraphPad Prism and Statistica. The study showed that both miR-154-5p and miR-154-3p were downregulated in the HNSCC samples and their expression levels correlated with tumor localization, overall survival, cancer stage, tumor grade, and HPV p16 status. GSEA indicated that individuals with the increased levels of miR-154 had upregulated AKT-MTOR, CYCLIN D1, KRAS, EIF4E, RB, ATM, and EMT gene sets. Finally, the elevated miR-154 expression correlated with better immune response. This study showed that miR-154 is highly involved in HNSCC pathogenesis, invasion, and immune response. The implementation of miR-154 as a biomarker may improve the effectiveness of HNSCC treatment.
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Affiliation(s)
- Weronika Tomaszewska
- Department of Cancer Immunology, Chair of Medical Biotechnology, Poznan University of Medical Sciences, 8 Rokietnicka Street, 60-806 Poznan, Poland; (D.B.); (A.P.); (S.S.); (U.K.)
| | - Joanna Kozłowska-Masłoń
- Laboratory of Cancer Genetics, Greater Poland Cancer Centre, Garbary 15, 61-866 Poznan, Poland; (J.K.-M.); (K.L.)
- Research and Implementation Unit, Greater Poland Cancer Centre, Garbary 15, 61-866 Poznan, Poland
- Faculty of Biology, Institute of Human Biology and Evolution, Adam Mickiewicz University, Uniwersytetu Poznańskiego 6, 61-614 Poznań, Poland
| | - Dawid Baranowski
- Department of Cancer Immunology, Chair of Medical Biotechnology, Poznan University of Medical Sciences, 8 Rokietnicka Street, 60-806 Poznan, Poland; (D.B.); (A.P.); (S.S.); (U.K.)
| | - Anna Perkowska
- Department of Cancer Immunology, Chair of Medical Biotechnology, Poznan University of Medical Sciences, 8 Rokietnicka Street, 60-806 Poznan, Poland; (D.B.); (A.P.); (S.S.); (U.K.)
| | - Sandra Szałkowska
- Department of Cancer Immunology, Chair of Medical Biotechnology, Poznan University of Medical Sciences, 8 Rokietnicka Street, 60-806 Poznan, Poland; (D.B.); (A.P.); (S.S.); (U.K.)
| | - Urszula Kazimierczak
- Department of Cancer Immunology, Chair of Medical Biotechnology, Poznan University of Medical Sciences, 8 Rokietnicka Street, 60-806 Poznan, Poland; (D.B.); (A.P.); (S.S.); (U.K.)
| | - Patricia Severino
- Centro de Pesquisa Experimental, Albert Einstein Research and Education Institute, Hospital Israelita Albert Einstein, Av. Albert Einstein, 627-Jardim Leonor, São Paulo 05652-900, SP, Brazil;
| | - Katarzyna Lamperska
- Laboratory of Cancer Genetics, Greater Poland Cancer Centre, Garbary 15, 61-866 Poznan, Poland; (J.K.-M.); (K.L.)
- Research and Implementation Unit, Greater Poland Cancer Centre, Garbary 15, 61-866 Poznan, Poland
| | - Tomasz Kolenda
- Laboratory of Cancer Genetics, Greater Poland Cancer Centre, Garbary 15, 61-866 Poznan, Poland; (J.K.-M.); (K.L.)
- Research and Implementation Unit, Greater Poland Cancer Centre, Garbary 15, 61-866 Poznan, Poland
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Gao LN, Hao M, Liu XH, Zhang L, Dong Y, Zhang YF, He XC. CXCL14 facilitates the growth and metastasis of ovarian carcinoma cells via activation of the Wnt/β-catenin signaling pathway. J Ovarian Res 2021; 14:159. [PMID: 34789307 PMCID: PMC8596933 DOI: 10.1186/s13048-021-00913-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 10/27/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND There is an urgent need to identify potential targets in anticancer therapy to improve the survival and prognosis of patients with ovarian cancer (OC). Herein, we investigated the functional significance of chemokine (C-X-C motif) ligand 14 (CXCL14) in OC cell growth and epithelial-mesenchymal transition (EMT). METHODS qRT PCR and western blotting was used to detect CXCL14 mRNA level and protein expression, respectively. The functional mechanism of CXCL14 in OC was investigated by CCK-8, colony formation and transwell assays. The migration ability of OC cell was determined using wound healing. The protein expressions of CXCL14 and β-catenin in OC tissues were determined by immumohistochemical staining. RESULTS We demonstrated that high levels of CXCL14 were associated with a worse prognosis in patients with OC. CXCL14 knockdown considerably restrained the growth, migration and invasion of OC cell in vitro. In contrast, ectopic CXCL14 overexpression yielded the opposite results. Investigations to determine the underlying molecular mechanisms revealed that the Wnt/β-catenin signaling pathway is involved in CXCL14-facilitated OC cell invasiveness. CONCLUSION These data collectively demonstrate that CXCL14 contributes to OC cell growth and metastatic potential by regulating the Wnt/β-catenin signaling pathway.
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Affiliation(s)
- Li-Na Gao
- The Second Obstetrics Department, Gansu Provincial Maternity and Child-care Hospital, No. 143 North Qilihe Street, Qilihe District, Lanzhou, Gansu, China
| | - Man Hao
- The Second Obstetrics Department, Gansu Provincial Maternity and Child-care Hospital, No. 143 North Qilihe Street, Qilihe District, Lanzhou, Gansu, China.
| | - Xiao-Hui Liu
- The Second Obstetrics Department, Gansu Provincial Maternity and Child-care Hospital, No. 143 North Qilihe Street, Qilihe District, Lanzhou, Gansu, China
| | - Li Zhang
- The Second Obstetrics Department, Gansu Provincial Maternity and Child-care Hospital, No. 143 North Qilihe Street, Qilihe District, Lanzhou, Gansu, China
| | - Yan Dong
- The Second Obstetrics Department, Gansu Provincial Maternity and Child-care Hospital, No. 143 North Qilihe Street, Qilihe District, Lanzhou, Gansu, China
| | - Yu-Fang Zhang
- The Second Obstetrics Department, Gansu Provincial Maternity and Child-care Hospital, No. 143 North Qilihe Street, Qilihe District, Lanzhou, Gansu, China
| | - Xiao-Chun He
- The Second Obstetrics Department, Gansu Provincial Maternity and Child-care Hospital, No. 143 North Qilihe Street, Qilihe District, Lanzhou, Gansu, China
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24
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Arabzade A, Zhao Y, Varadharajan S, Chen HC, Jessa S, Rivas B, Stuckert AJ, Solis M, Kardian A, Tlais D, Golbourn BJ, Stanton ACJ, Chan YS, Olson C, Karlin KL, Kong K, Kupp R, Hu B, Injac SG, Ngo M, Wang PR, De León LA, Sahm F, Kawauchi D, Pfister SM, Lin CY, Hodges HC, Singh I, Westbrook TF, Chintagumpala MM, Blaney SM, Parsons DW, Pajtler KW, Agnihotri S, Gilbertson RJ, Yi J, Jabado N, Kleinman CL, Bertrand KC, Deneen B, Mack SC. ZFTA-RELA Dictates Oncogenic Transcriptional Programs to Drive Aggressive Supratentorial Ependymoma. Cancer Discov 2021; 11:2200-2215. [PMID: 33741710 PMCID: PMC8418998 DOI: 10.1158/2159-8290.cd-20-1066] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 01/05/2021] [Accepted: 03/16/2021] [Indexed: 01/10/2023]
Abstract
More than 60% of supratentorial ependymomas harbor a ZFTA-RELA (ZRfus) gene fusion (formerly C11orf95-RELA). To study the biology of ZRfus, we developed an autochthonous mouse tumor model using in utero electroporation (IUE) of the embryonic mouse brain. Integrative epigenomic and transcriptomic mapping was performed on IUE-driven ZRfus tumors by CUT&RUN, chromatin immunoprecipitation sequencing, assay for transposase-accessible chromatin sequencing, and RNA sequencing and compared with human ZRfus-driven ependymoma. In addition to direct canonical NFκB pathway activation, ZRfus dictates a neoplastic transcriptional program and binds to thousands of unique sites across the genome that are enriched with PLAGL family transcription factor (TF) motifs. ZRfus activates gene expression programs through recruitment of transcriptional coactivators (Brd4, Ep300, Cbp, Pol2) that are amenable to pharmacologic inhibition. Downstream ZRfus target genes converge on developmental programs marked by PLAGL TF proteins, and activate neoplastic programs enriched in Mapk, focal adhesion, and gene imprinting networks. SIGNIFICANCE: Ependymomas are aggressive brain tumors. Although drivers of supratentorial ependymoma (ZFTA- and YAP1-associated gene fusions) have been discovered, their functions remain unclear. Our study investigates the biology of ZFTA-RELA-driven ependymoma, specifically mechanisms of transcriptional deregulation and direct downstream gene networks that may be leveraged for potential therapeutic testing.This article is highlighted in the In This Issue feature, p. 2113.
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Affiliation(s)
- Amir Arabzade
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, Texas
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, Texas Children's Cancer and Hematology Centers, Dan L. Duncan Cancer Center, Houston, Texas
- Therapeutic Innovation Center at Baylor College of Medicine, Houston, Texas
| | - Yanhua Zhao
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, Texas Children's Cancer and Hematology Centers, Dan L. Duncan Cancer Center, Houston, Texas
- Therapeutic Innovation Center at Baylor College of Medicine, Houston, Texas
| | - Srinidhi Varadharajan
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, Texas Children's Cancer and Hematology Centers, Dan L. Duncan Cancer Center, Houston, Texas
- Therapeutic Innovation Center at Baylor College of Medicine, Houston, Texas
| | - Hsiao-Chi Chen
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, Texas Children's Cancer and Hematology Centers, Dan L. Duncan Cancer Center, Houston, Texas
- Therapeutic Innovation Center at Baylor College of Medicine, Houston, Texas
- Cancer and Cell Biology Program, Baylor College of Medicine, Dan L. Duncan Cancer Center, Houston, Texas
| | - Selin Jessa
- Quantitative Life Sciences, McGill University, Montreal, Quebec, Canada
| | - Bryan Rivas
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, Texas Children's Cancer and Hematology Centers, Dan L. Duncan Cancer Center, Houston, Texas
- Therapeutic Innovation Center at Baylor College of Medicine, Houston, Texas
| | - Austin J Stuckert
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, Texas Children's Cancer and Hematology Centers, Dan L. Duncan Cancer Center, Houston, Texas
- Therapeutic Innovation Center at Baylor College of Medicine, Houston, Texas
| | - Minerva Solis
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, Texas Children's Cancer and Hematology Centers, Dan L. Duncan Cancer Center, Houston, Texas
- Therapeutic Innovation Center at Baylor College of Medicine, Houston, Texas
- Cancer and Cell Biology Program, Baylor College of Medicine, Dan L. Duncan Cancer Center, Houston, Texas
| | - Alisha Kardian
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, Texas Children's Cancer and Hematology Centers, Dan L. Duncan Cancer Center, Houston, Texas
- Therapeutic Innovation Center at Baylor College of Medicine, Houston, Texas
- Cancer and Cell Biology Program, Baylor College of Medicine, Dan L. Duncan Cancer Center, Houston, Texas
| | - Dana Tlais
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, Texas Children's Cancer and Hematology Centers, Dan L. Duncan Cancer Center, Houston, Texas
- Therapeutic Innovation Center at Baylor College of Medicine, Houston, Texas
| | - Brian J Golbourn
- Department of Neurological Surgery, UPMC Children's Hospital of Pittsburgh, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Ann-Catherine J Stanton
- Department of Neurological Surgery, UPMC Children's Hospital of Pittsburgh, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Yuen San Chan
- Therapeutic Innovation Center at Baylor College of Medicine, Houston, Texas
- Department of Molecular and Cellular Biology and Center for Precision Environmental Health, Baylor College of Medicine, Houston, Texas
- Department of Bioengineering, Rice University, Houston, Texas
- Center for Cancer Epigenetics, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Calla Olson
- Therapeutic Innovation Center at Baylor College of Medicine, Houston, Texas
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas
- Department of Biochemistry and Molecular Biology, Houston, Texas
| | - Kristen L Karlin
- Therapeutic Innovation Center at Baylor College of Medicine, Houston, Texas
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas
- Department of Biochemistry and Molecular Biology, Houston, Texas
| | - Kathleen Kong
- Therapeutic Innovation Center at Baylor College of Medicine, Houston, Texas
| | - Robert Kupp
- Cancer Research UK Cambridge Institute, University of Cambridge, Li Ka Shing Centre, Cambridge, England
- Department of Oncology, University of Cambridge, Hutchison/MRC Research Centre, Cambridge Biomedical Campus, Cambridge, England
| | - Baoli Hu
- Department of Neurological Surgery, UPMC Children's Hospital of Pittsburgh, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Sarah G Injac
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, Texas Children's Cancer and Hematology Centers, Dan L. Duncan Cancer Center, Houston, Texas
- Therapeutic Innovation Center at Baylor College of Medicine, Houston, Texas
| | - Madeline Ngo
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, Texas
| | - Peter R Wang
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, Texas
| | - Luz A De León
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, Texas Children's Cancer and Hematology Centers, Dan L. Duncan Cancer Center, Houston, Texas
| | - Felix Sahm
- Hopp-Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
- Clinical Cooperation Unit Neuropathology, German Cancer Research Center (DKFZ), Heidelberg, Germany
- Department of Neuropathology, Heidelberg University Hospital, Heidelberg, Germany
| | - Daisuke Kawauchi
- Hopp-Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
- Clinical Cooperation Unit Neuropathology, German Cancer Research Center (DKFZ), Heidelberg, Germany
- Department of Biochemistry and Cellular Biology, National Center of Neurology and Psychiatry (NCNP), Tokyo, Japan
| | - Stefan M Pfister
- Hopp-Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
- Department of Pediatric Neurooncology, German Cancer Research Center (DKFZ) and German Cancer Consortium (DKTK), Heidelberg, Germany
- Department of Pediatric Hematology and Oncology, Heidelberg University Hospital, Heidelberg, Germany
| | - Charles Y Lin
- Therapeutic Innovation Center at Baylor College of Medicine, Houston, Texas
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas
| | - H Courtney Hodges
- Therapeutic Innovation Center at Baylor College of Medicine, Houston, Texas
- Department of Molecular and Cellular Biology and Center for Precision Environmental Health, Baylor College of Medicine, Houston, Texas
- Department of Bioengineering, Rice University, Houston, Texas
- Center for Cancer Epigenetics, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Irtisha Singh
- Department of Molecular and Cellular Medicine, College of Medicine, Texas A&M University Health Science Center, Bryan, Texas
| | - Thomas F Westbrook
- Therapeutic Innovation Center at Baylor College of Medicine, Houston, Texas
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas
- Department of Biochemistry and Molecular Biology, Houston, Texas
| | - Murali M Chintagumpala
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, Texas Children's Cancer and Hematology Centers, Dan L. Duncan Cancer Center, Houston, Texas
| | - Susan M Blaney
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, Texas Children's Cancer and Hematology Centers, Dan L. Duncan Cancer Center, Houston, Texas
| | - Donald W Parsons
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, Texas Children's Cancer and Hematology Centers, Dan L. Duncan Cancer Center, Houston, Texas
| | - Kristian W Pajtler
- Hopp-Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany
- Department of Pediatric Neurooncology, German Cancer Research Center (DKFZ) and German Cancer Consortium (DKTK), Heidelberg, Germany
- Department of Pediatric Hematology and Oncology, Heidelberg University Hospital, Heidelberg, Germany
| | - Sameer Agnihotri
- Department of Neurological Surgery, UPMC Children's Hospital of Pittsburgh, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Richard J Gilbertson
- Cancer Research UK Cambridge Institute, University of Cambridge, Li Ka Shing Centre, Cambridge, England
- Department of Oncology, University of Cambridge, Hutchison/MRC Research Centre, Cambridge Biomedical Campus, Cambridge, England
| | - Joanna Yi
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, Texas Children's Cancer and Hematology Centers, Dan L. Duncan Cancer Center, Houston, Texas
- Therapeutic Innovation Center at Baylor College of Medicine, Houston, Texas
| | - Nada Jabado
- Quantitative Life Sciences, McGill University, Montreal, Quebec, Canada
- Department of Human Genetics, McGill University, Montreal, Quebec, Canada
| | - Claudia L Kleinman
- Quantitative Life Sciences, McGill University, Montreal, Quebec, Canada
- Department of Human Genetics, McGill University, Montreal, Quebec, Canada
- Lady Davis Research Institute, Jewish General Hospital, Quebec, Canada
| | - Kelsey C Bertrand
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, Texas Children's Cancer and Hematology Centers, Dan L. Duncan Cancer Center, Houston, Texas.
- Therapeutic Innovation Center at Baylor College of Medicine, Houston, Texas
| | - Benjamin Deneen
- Cancer and Cell Biology Program, Baylor College of Medicine, Dan L. Duncan Cancer Center, Houston, Texas.
- Program in Developmental Biology, Baylor College of Medicine, Houston, Texas
- Center for Cell and Gene Therapy, Baylor College of Medicine, Houston, Texas
- Department of Neurosurgery, Baylor College of Medicine, Houston, Texas
| | - Stephen C Mack
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, Texas Children's Cancer and Hematology Centers, Dan L. Duncan Cancer Center, Houston, Texas.
- Therapeutic Innovation Center at Baylor College of Medicine, Houston, Texas
- Cancer and Cell Biology Program, Baylor College of Medicine, Dan L. Duncan Cancer Center, Houston, Texas
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Yang T, Huo J, Xu R, Su Q, Tang W, Zhang D, Zhu M, Zhan Y, Dai B, Zhang Y. Selenium sulfide disrupts the PLAGL2/C-MET/STAT3-induced resistance against mitochondrial apoptosis in hepatocellular carcinoma. Clin Transl Med 2021; 11:e536. [PMID: 34586726 PMCID: PMC8441139 DOI: 10.1002/ctm2.536] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 07/26/2021] [Accepted: 08/01/2021] [Indexed: 01/12/2023] Open
Abstract
BACKGROUND Hepatocellular carcinoma (HCC) is the third leading cause of cancer-related deaths worldwide. Overexpression of pleomorphic adenoma gene like-2 (PLAGL2) is associated with tumorigenesis. However, its function in HCC is unclear, and there are currently no anti-HCC drugs that target PLAGL2. Drug repositioning may facilitate the development of PLAGL2-targeted drug candidates. METHODS The expression of PLAGL2 in HCC clinical tissue samples and HCC cell lines was analyzed by western blotting. The constructed HCC cell models were used to confirm the underlying function of PLAGL2 as a therapeutic target. Multiple in vitro and in vivo assays were conducted to determine the anti-proliferative and apoptosis-inducing effects of selenium sulfide (SeS2 ), which is clinically used for the treatment of seborrheic dermatitis and tinea versicolor. RESULTS PLAGL2 expression was higher in HCC tumor tissues than in normal adjacent tissues. Its overexpression promoted the resistance of HCC cells of mitochondrial apoptosis through the regulation of the downstream C-MET/STAT3 signaling axis. SeS2 exerted significant anti-proliferative and apoptosis-inducing effects on HCC cells in a PLAGL2-dependent manner. Mechanistically, SeS2 suppressed C-MET/STAT3, AKT/mTOR, and MAPK signaling and triggered Bcl-2/Cyto C/Caspase-mediated intrinsic mitochondrial apoptosis both in vitro and in vivo. CONCLUSIONS Our data reveal an important role of PLAGL2 in apoptosis resistance in HCC and highlight the potential of using SeS2 as a PLAGL2 inhibitor in patients with HCC.
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Affiliation(s)
- Tianfeng Yang
- School of PharmacyHealth Science CenterXi'an Jiaotong UniversityXi'anP. R. China
- State Key Laboratory of Shaanxi for Natural Medicines Research and EngineeringXi'anP. R. China
| | - Jian Huo
- School of PharmacyHealth Science CenterXi'an Jiaotong UniversityXi'anP. R. China
- State Key Laboratory of Shaanxi for Natural Medicines Research and EngineeringXi'anP. R. China
| | - Rui Xu
- School of PharmacyHealth Science CenterXi'an Jiaotong UniversityXi'anP. R. China
- State Key Laboratory of Shaanxi for Natural Medicines Research and EngineeringXi'anP. R. China
| | - Qi Su
- School of PharmacyHealth Science CenterXi'an Jiaotong UniversityXi'anP. R. China
- State Key Laboratory of Shaanxi for Natural Medicines Research and EngineeringXi'anP. R. China
| | - Wenjuan Tang
- School of PharmacyHealth Science CenterXi'an Jiaotong UniversityXi'anP. R. China
- State Key Laboratory of Shaanxi for Natural Medicines Research and EngineeringXi'anP. R. China
| | - Dongdong Zhang
- School of PharmacyHealth Science CenterXi'an Jiaotong UniversityXi'anP. R. China
- State Key Laboratory of Shaanxi for Natural Medicines Research and EngineeringXi'anP. R. China
| | - Man Zhu
- School of PharmacyHealth Science CenterXi'an Jiaotong UniversityXi'anP. R. China
- State Key Laboratory of Shaanxi for Natural Medicines Research and EngineeringXi'anP. R. China
| | - Yingzhuan Zhan
- School of PharmacyHealth Science CenterXi'an Jiaotong UniversityXi'anP. R. China
- State Key Laboratory of Shaanxi for Natural Medicines Research and EngineeringXi'anP. R. China
| | - Bingling Dai
- School of PharmacyHealth Science CenterXi'an Jiaotong UniversityXi'anP. R. China
- State Key Laboratory of Shaanxi for Natural Medicines Research and EngineeringXi'anP. R. China
| | - Yanmin Zhang
- School of PharmacyHealth Science CenterXi'an Jiaotong UniversityXi'anP. R. China
- State Key Laboratory of Shaanxi for Natural Medicines Research and EngineeringXi'anP. R. China
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Yan Y, Zhang Y, Li M, Zhang Y, Zhang X, Zhang X, Xu Y, Wei W, Wang J, Xu X, Song Q, Zhao C. C644-0303, a small-molecule inhibitor of the Wnt/β-catenin pathway, suppresses colorectal cancer growth. Cancer Sci 2021; 112:4722-4735. [PMID: 34431598 PMCID: PMC8586673 DOI: 10.1111/cas.15118] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 08/13/2021] [Accepted: 08/19/2021] [Indexed: 12/15/2022] Open
Abstract
The Wnt/β‐catenin signaling pathway plays an important role in tissue homeostasis, and its malignant activation is closely related to the occurrence and development of many cancers, especially colorectal cancer with adenomatous polyposis coli (APC) and CTNNB1 mutations. By applying a TCF/lymphoid‐enhancing factor (LEF) luciferase reporter system, the high‐throughput screening of 18 840 small‐molecule compounds was performed. A novel scaffold compound, C644‐0303, was identified as a Wnt/β‐catenin signaling inhibitor and exhibited antitumor efficacy. It inhibited both constitutive and ligand activated Wnt signals and its downstream gene expression. Functional studies showed that C644‐0303 causes cell cycle arrest, induces apoptosis, and inhibits cancer cell migration. Moreover, transcription factor array indicated that C644‐0303 could suppress various tumor‐promoting transcription factor activities in addition to Wnt/β‐catenin. Finally, C644‐0303 suppressed tumor spheroidization in a 3‐dimensional cell culture model and inhibited xenograft tumor growth in mice. In conclusion, we report a novel structural small molecular inhibitor targeting the Wnt/β‐catenin signaling pathway that has therapeutic potential for colorectal cancer treatment.
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Affiliation(s)
- Yu Yan
- School of Medicine and Pharmacy, Ocean University of China, Qingdao, China
| | - Yidan Zhang
- School of Medicine and Pharmacy, Ocean University of China, Qingdao, China
| | - Mengyuan Li
- School of Medicine and Pharmacy, Ocean University of China, Qingdao, China
| | - Yazhuo Zhang
- School of Medicine and Pharmacy, Ocean University of China, Qingdao, China
| | - Xinxin Zhang
- Innovation Platform of Marine Drug Screening & Evaluation, Qingdao Pilot National Laboratory for Marine Science and Technology, Qingdao, China
| | - Xiaonan Zhang
- Innovation Platform of Marine Drug Screening & Evaluation, Qingdao Pilot National Laboratory for Marine Science and Technology, Qingdao, China
| | - Yuting Xu
- School of Medicine and Pharmacy, Ocean University of China, Qingdao, China
| | - Wei Wei
- School of Life Science, Lanzhou University, Lanzhou, China
| | - Jie Wang
- School of Medicine and Pharmacy, Ocean University of China, Qingdao, China
| | - Xiaohan Xu
- School of Medicine and Pharmacy, Ocean University of China, Qingdao, China
| | - Qiaoling Song
- School of Medicine and Pharmacy, Ocean University of China, Qingdao, China.,Innovation Platform of Marine Drug Screening & Evaluation, Qingdao Pilot National Laboratory for Marine Science and Technology, Qingdao, China
| | - Chenyang Zhao
- School of Medicine and Pharmacy, Ocean University of China, Qingdao, China.,Innovation Platform of Marine Drug Screening & Evaluation, Qingdao Pilot National Laboratory for Marine Science and Technology, Qingdao, China
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Zeng Z, Teng Q, Xiao J. Long noncoding RNA ILF3-AS1 aggravates papillary thyroid carcinoma progression via regulating the miR-4306/PLAGL2 axis. Cancer Cell Int 2021; 21:322. [PMID: 34176471 PMCID: PMC8237480 DOI: 10.1186/s12935-021-01950-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 04/22/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND It have been proven that long non-coding RNAs (lncRNAs) serve as regulators in carcinogenesis. Interleukin enhancer binding factor 3 antisense RNA 1 (ILF3-AS1) has been illuminated as a prognostic factor in some cancers. Nevertheless, its expression pattern and possible functions in papillary thyroid carcinoma (PTC) have not been studied. METHODS The expression of ILF3-AS1 was measured by RT-qPCR and ISH. Colony formation assay and EdU assay were used to probe cell proliferation. TUNEL assay was used for analysis of cell apoptosis. Immunofluorescence and western blot were conducted to evaluate the expression change of E-cadherin and N-cadherin. The RNA interaction was demonstrated by mechanism experiments, including pull down assay and dual luciferase reporter assay. RESULTS ILF3-AS1 expression was evidently upregulated in PTC cell lines. ILF3-AS1 knockdown restrained the proliferation, migration and invasion of PTC cells. Mechanical investigation revealed that miR-4306 could interact with ILF3-AS1. PLAGL2 was a downstream target of miR-4306. The effects of ILF3-AS1 knockdown on the cellular processes were abrogated by miR-4306 downregulation or pleiomorphic adenoma gene-like 2 (PLAGL2) overexpression. CONCLUSION ILF3-AS1 plays tumor-promoting role in PTC via targeting miR-4306/PLAGL2 axis.
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Affiliation(s)
- Zhaohui Zeng
- Department of Nuclear Medicine, Hunan Provincial People's Hospital/The First Affiliated Hospital of Hunan Normal University, Changsha, 410005, Hunan, China
| | - Qiangfeng Teng
- Department of Nuclear Medicine, The First Affiliated Hospital of Guangxi Medical University, No. 6, Shuangyong Road, Nanning, 530021, Guangxi, China.
| | - Jinhong Xiao
- Department of Laboratory, Hunan Provincial People's Hospital/The First Affiliated Hospital of Hunan Normal University, Changsha, 410005, Hunan, China
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LncRNA ARAP1-AS1 aggravates the malignant phenotypes of ovarian cancer cells through sponging miR-4735-3p to enhance PLAGL2 expression. Cytotechnology 2021; 73:363-372. [PMID: 34149172 DOI: 10.1007/s10616-021-00463-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 03/18/2021] [Indexed: 12/15/2022] Open
Abstract
Ovarian cancer is one of the leading lethal gynecological cancers, causing serious harm to the health of female populations. Growing studies emphasize that lncRNAs serve as significant regulators in the tumorigenesis and evolution of numerous malignancies, including ovarian cancer. Recently, the oncogenic activity of lncRNA ARAP1-AS1 has been justified in a variety of cancers. However, the potential function of ARAP1-AS1 in ovarian cancer development is still unclear. Herein, we firstly revealed the expression profile of ARAP1-AS1 in ovarian cancer. Compared to normal samples and cells, upregulation of ARAP1-AS1 was observed in tissues and cells of ovarian cancer. Therewith, it was disclosed that knockdown of ARAP1-AS1 alleviated the carcinogenicity of ovarian cancer cells. Besides, our findings delineated that ARAP1-AS1 silence inhibited the expression of oncogene PLAGL2. Considering that ARAP1-AS1 was principally expressed in the the cytoplasm of ovarian cancer cells, we speculated that ARAP1-AS1 facilitated ovarian cancer progression via functioning as a ceRNA. Further investigations indicated that ARAP1-AS1 promoted PLAGL2 expression by competitively binding with miR-4735-3p. Of note, ARAP1-AS1 contributed to the malignant phenotypes of ovarian cancer cells through modulation of miR-4735-3p/PLAGL2 axis, revealing ARAP1-AS1 as a promising therapeutic target for ovarian cancer patients.
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Wang L, Sun L, Liu R, Mo H, Niu Y, Chen T, Wang Y, Han S, Tu K, Liu Q. Long non-coding RNA MAPKAPK5-AS1/PLAGL2/HIF-1α signaling loop promotes hepatocellular carcinoma progression. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2021; 40:72. [PMID: 33596983 PMCID: PMC7891009 DOI: 10.1186/s13046-021-01868-z] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Accepted: 02/05/2021] [Indexed: 02/06/2023]
Abstract
Background Long non-coding RNAs (lncRNAs) are widely involved in human cancers’ progression by regulating tumor cells’ various malignant behaviors. MAPKAPK5-AS1 has been recognized as an oncogene in colorectal cancer. However, the biological role of MAPKAPK5-AS1 in hepatocellular carcinoma (HCC) has not been explored. Methods Quantitative real-time PCR was performed to detect the level of MAPKAPK5-AS1 in HCC tissues and cell lines. The effects of MAPKAPK5-AS1 on tumor growth and metastasis were assessed via in vitro experiments, including MTT, colony formation, EdU, flow cytometry, transwell assays, and nude mice models. The western blotting analysis was carried out to determine epithelial-mesenchymal transition (EMT) markers and AKT signaling. The interaction between MAPKAPK5-AS1, miR-154-5p, and PLAGL2 were explored by luciferase reporter assay and RNA immunoprecipitation. The regulatory effect of HIF-1α on MAPKAPK5-AS1 was evaluated by chromatin immunoprecipitation. Results MAPKAPK5-AS1 expression was significantly elevated in HCC, and its overexpression associated with malignant clinical features and reduced survival. Functionally, MAPKAPK5-AS1 knockdown repressed the proliferation, mobility, and EMT of HCC cells and induced apoptosis. Ectopic expression of MAPKAPK5-AS1 contributed to HCC cell proliferation and invasion in vitro. Furthermore, MAPKAPK5-AS1 silencing suppressed, while MAPKAPK5-AS1 overexpression enhanced HCC growth and lung metastasis in vivo. Mechanistically, MAPKAPK5-AS1 upregulated PLAG1 like zinc finger 2 (PLAGL2) expression by acting as an endogenous competing RNA (ceRNA) to sponge miR-154-5p, thereby activating EGFR/AKT signaling. Importantly, rescue experiments demonstrated that the miR-154-5p/PLAGL2 axis mediated the function of MAPKAPK5-AS1 in HCC cells. Interestingly, we found that hypoxia-inducible factor 1α (HIF-1α), a transcript factor, could directly bind to the promoter to activate MAPKAPK5-AS1 transcription. MAPKAPK5-AS1 regulated HIF-1α expression through PLAGL2 to form a hypoxia-mediated MAPKAPK5-AS1/PLAGL2/HIF-1α signaling loop in HCC. Conclusions Our results reveal a MAPKAPK5-AS1/PLAGL2/HIF-1α signaling loop in HCC progression and suggest that MAPKAPK5-AS1 could be a potential novel therapeutic target of HCC. Supplementary Information The online version contains supplementary material available at 10.1186/s13046-021-01868-z.
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Affiliation(s)
- Liang Wang
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an, 710061, China
| | - Liankang Sun
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an, 710061, China
| | - Runkun Liu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an, 710061, China
| | - Huanye Mo
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an, 710061, China
| | - Yongshen Niu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an, 710061, China
| | - Tianxiang Chen
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an, 710061, China
| | - Yufeng Wang
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an, 710061, China
| | - Shaoshan Han
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an, 710061, China
| | - Kangsheng Tu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an, 710061, China.
| | - Qingguang Liu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an, 710061, China.
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Kaempferol ameliorates the regulatory effects of PVT1/ miR-214 on epithelial-mesenchymal transition through the PAK4/β-catenin axis in SRA01/04 cells. Future Med Chem 2021; 13:613-623. [PMID: 33527844 DOI: 10.4155/fmc-2020-0381] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Aim: To investigate whether kaempferol exhibits a protective effect on high glucose-induced epithelial-mesenchymal transition (EMT) by mediating the PVT1/miR-214 and PAK4/β-catenin pathways in SRA01/04 cells. Methods & methods: qRT-PCR and western blot assays were used for gene and protein determination, and migration and invasion assays were conducted. A coimmunoprecipitation assay was used for determining protein interactions. Results: High glucose effectively upregulated PVT1 expression, downregulated miR-214 expression and promoted cell migration and invasion. Kaempferol attenuated high glucose-induced EMT by increasing PVT1 expression and decreasing miR-214 expression. PAK4 was identified as a direct target of miR-214. PAK4 overexpression could rescue the effects of PVT1 deficiency on SRA01/04 cells. Conclusion: Kaempferol ameliorated the regulatory effects of PVT1/miR-214 on high glucose-induced EMT through PAK4/β-catenin in SRA01/04 cells.
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Wu L, Zhao N, Zhou Z, Chen J, Han S, Zhang X, Bao H, Yuan W, Shu X. PLAGL2 promotes the proliferation and migration of gastric cancer cells via USP37-mediated deubiquitination of Snail1. Am J Cancer Res 2021; 11:700-714. [PMID: 33391500 PMCID: PMC7738862 DOI: 10.7150/thno.47800] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 09/30/2020] [Indexed: 02/06/2023] Open
Abstract
Rationale: PLAGL2 (pleomorphic adenoma gene like-2), a zinc finger PLAG transcription factor, is aberrantly expressed in several malignant tumors. However, the biological roles of PLAGL2 and its underlying mechanism in gastric cancer (GC) remain unclear. Methods: A series of experiments in vitro and in vivo were conducted to reveal the role of PLAGL2 in GC progression. Results: The data revealed that PLAGL2 promotes GC cell proliferation, migration, invasion, and EMT in vitro and in vivo. Mechanistically, we demonstrated the critical role of PLAGL2 in the stabilization of snail family transcriptional repressor 1 (Snail1) and promoting Snail1-mediated proliferation and migration of GC cells. PLAGL2 activated the transcription of deubiquitinase USP37, which then interacted with and deubiquitinated Snail1 protein directly. In addition, GSK-3β-dependent phosphorylation of Snail1 protein is essential for USP37-mediated Snail1 deubiquitination regulation. Conclusions: In general, PLAGL2 promotes the proliferation and migration of GC cells through USP37-mediated deubiquitination of Snail1 protein. This work provided potential therapeutic targets for GC treatment.
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