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Wei Z, Wei N, Su L, Gao S. The molecular effects underlying the pharmacological activities of daphnetin. Front Pharmacol 2024; 15:1407010. [PMID: 39011506 PMCID: PMC11246999 DOI: 10.3389/fphar.2024.1407010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Accepted: 06/13/2024] [Indexed: 07/17/2024] Open
Abstract
As an increasingly well-known derivative of coumarin, daphnetin (7,8-dithydroxycoumarin) has demonstrated various pharmacological activities, including anti-inflammation, anti-cancer, anti-autoimmune diseases, antibacterial, organ protection, and neuroprotection properties. Various studies have been conducted to explore the action mechanisms and synthetic methods of daphnetin, given its therapeutic potential in clinical. Despite these initial insights, the precise mechanisms underlying the pharmacological activities of daphnetin remain largely unknown. In order to address this knowledge gap, we explore the molecular effects from the perspectives of signaling pathways, NOD-like receptor protein 3 (NLRP3) inflammasome and inflammatory factors; and try to find out how these mechanisms can be utilized to inform new combined therapeutic strategies.
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Affiliation(s)
- Zhifeng Wei
- Department of Hematology, The First Hospital of Jilin University, Changchun, China
| | - Na Wei
- Department of Obstetrics, The Affiliated Taian City Central Hospital of Qingdao University, Taian, China
| | - Long Su
- Department of Hematology, The First Hospital of Jilin University, Changchun, China
| | - Sujun Gao
- Department of Hematology, The First Hospital of Jilin University, Changchun, China
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Guo Y, Deng X, Wang S, Yuan Y, Guo Z, Hao H, Jiao Y, Li P, Han S. SILAC proteomics based on 3D cell spheroids unveils the role of RAC2 in regulating the crosstalk between triple-negative breast cancer cells and tumor-associated macrophages. Int J Biol Macromol 2024; 254:127639. [PMID: 37879580 DOI: 10.1016/j.ijbiomac.2023.127639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 09/29/2023] [Accepted: 10/21/2023] [Indexed: 10/27/2023]
Abstract
Triple-negative breast cancer (TNBC) is the most aggressive subtype of breast cancer, and is characterized by a high infiltration of tumor-associated macrophages (TAMs). TAMs contribute significantly to tumor progression by intricately interacting with tumor cells. Deeply investigating the interaction between TNBC cells and TAMs is of great importance for finding potential biomarkers and developing novel therapeutic strategies to further improve the clinical outcomes of TNBC patients. In this study, we confirmed the interplay using both 3D and 2D co-culture models. The stable-isotype labeling by amino acids in cell culture (SILAC)-based quantitative proteomics was conducted on 3D cell spheroids containing TNBC cells and macrophages to identify the potential candidate in regulating the crosstalk between TNBC and TAMs. Ras-related C3 botulinum toxin substrate 2 (RAC2) was identified as a potential molecule for further exploration, given its high expression in TNBC and positive correlation with M2 macrophage infiltration. The suppression of RAC2 inhibited TNBC cell proliferation, migration, invasion, and epithelial-mesenchymal transition (EMT) in vitro. Meanwhile, knocking down RAC2 in TNBC cells impaired macrophage recruitment and M2 polarization. Mechanistically, RAC2 exerted its roles in TNBC cells and TAMs by regulating the activation of P65 NF-κB and P38 MAPK, while TAMs further elevated RAC2 expression and P65 NF-κB activation by secreting soluble mediators including IL-10. These findings highlight the significance of RAC2 as a crucial molecule in the crosstalk between TNBC and TAMs, suggesting it could be a promising therapeutic target in TNBC.
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Affiliation(s)
- Yang Guo
- Department of Integration of Chinese and Western Medicine, School of Basic Medical Sciences, Peking University, Beijing, PR China; Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, Department of Integration of Chinese and Western Medicine, Peking University Cancer Hospital and Institute, Beijing 100142, PR China
| | - Xinxin Deng
- Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, Department of Integration of Chinese and Western Medicine, Peking University Cancer Hospital and Institute, Beijing 100142, PR China
| | - Shan Wang
- Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, Department of Integration of Chinese and Western Medicine, Peking University Cancer Hospital and Institute, Beijing 100142, PR China
| | - Yuan Yuan
- Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, Department of Integration of Chinese and Western Medicine, Peking University Cancer Hospital and Institute, Beijing 100142, PR China
| | - Zhengwang Guo
- Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, Department of Integration of Chinese and Western Medicine, Peking University Cancer Hospital and Institute, Beijing 100142, PR China
| | - Huifeng Hao
- Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, Department of Integration of Chinese and Western Medicine, Peking University Cancer Hospital and Institute, Beijing 100142, PR China
| | - Yanna Jiao
- Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, Department of Integration of Chinese and Western Medicine, Peking University Cancer Hospital and Institute, Beijing 100142, PR China
| | - Pingping Li
- Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, Department of Integration of Chinese and Western Medicine, Peking University Cancer Hospital and Institute, Beijing 100142, PR China.
| | - Shuyan Han
- Department of Integration of Chinese and Western Medicine, School of Basic Medical Sciences, Peking University, Beijing, PR China; Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, Department of Integration of Chinese and Western Medicine, Peking University Cancer Hospital and Institute, Beijing 100142, PR China.
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Liu R, Li T, Zhang G, Jia Y, Liu J, Pan L, Li Y, Jia C. Pancancer Analysis Revealed the Value of RAC2 in Immunotherapy and Cancer Stem Cell. Stem Cells Int 2023; 2023:8485726. [PMID: 37214785 PMCID: PMC10198763 DOI: 10.1155/2023/8485726] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 02/03/2023] [Accepted: 04/05/2023] [Indexed: 05/24/2023] Open
Abstract
Objective To investigate the oncogenic effect and clinical significance of RAC2 in pancarcinoma from the perspective of tumor immunity and cancer stem cell. Methods After in-depth mining of TCGA, GEO, UCSC, and other databases, basic information of the RAC2 gene and its expression in tumor tissues as well as the relationship between RAC2 and tumor were analyzed based on survival, mutation, immune microenvironment, tumor stemness, and enrichment analysis on related pathways. Results RAC2 mRNA expression was increased in most tumor tissues and was associated with their prognosis. Compared to normal tissues, the RAC2 mutation rate was higher in patients with skin melanoma, uterine sarcoma, and endometrial cancer. RAC2 had a strong relation with immune cell infiltration, immunomodulators, immunotherapy markers, cancer stem cell of THYM, and immune-related pathways. Conclusions This study explored the potential importance of RAC2 in the prognosis, immunotherapy, and cancer stem cell of 33 cancers, laying the foundation for mechanistic experiments and its future application in clinical practice. However, the results using bioinformatics methods could be affected by the differences in patients across databases. Thus, the present results were preliminary and required further experimental validation.
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Affiliation(s)
- Ranran Liu
- School of Acupuncture, Moxibustion and Tuina, Hebei University of Chinese Medicine, Shijiazhuang 050200, China
| | - Tianyu Li
- School of Acupuncture, Moxibustion and Tuina, Hebei University of Chinese Medicine, Shijiazhuang 050200, China
| | - Guohong Zhang
- Hebei Key Laboratory of Chinese Medicine Research on Cardiocerebrovascular Disease, Hebei University of Chinese Medicine, Shijiazhuang 050200, China
| | - Yejuan Jia
- School of Acupuncture, Moxibustion and Tuina, Hebei University of Chinese Medicine, Shijiazhuang 050200, China
| | - Jingxuan Liu
- School of Acupuncture, Moxibustion and Tuina, Hebei University of Chinese Medicine, Shijiazhuang 050200, China
| | - Lijia Pan
- School of Acupuncture, Moxibustion and Tuina, Hebei University of Chinese Medicine, Shijiazhuang 050200, China
| | - Yunfeng Li
- Hebei Key Laboratory of Chinese Medicine Research on Cardiocerebrovascular Disease, Hebei University of Chinese Medicine, Shijiazhuang 050200, China
| | - Chunsheng Jia
- School of Acupuncture, Moxibustion and Tuina, Hebei University of Chinese Medicine, Shijiazhuang 050200, China
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Sabbir Ahmed CM, Canchola A, Paul B, Alam MRN, Lin YH. Altered long non-coding RNAs expression in normal and diseased primary human airway epithelial cells exposed to diesel exhaust particles. Inhal Toxicol 2023; 35:157-168. [PMID: 36877189 PMCID: PMC10424575 DOI: 10.1080/08958378.2023.2185703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 02/24/2023] [Indexed: 03/07/2023]
Abstract
BACKGROUND Exposure to diesel exhaust particles (DEP) has been linked to a variety of adverse health effects, including increased morbidity and mortality from cardiovascular diseases, chronic obstructive pulmonary disease (COPD), metabolic syndrome, and lung cancer. The epigenetic changes caused by air pollution have been associated with increased health risks. However, the exact molecular mechanisms underlying the lncRNA-mediated pathogenesis induced by DEP exposure have not been revealed. METHODS Through RNA-sequencing and integrative analysis of both mRNA and lncRNA profiles, this study investigated the role of lncRNAs in altered gene expression in healthy and diseased human primary epithelial cells (NHBE and DHBE-COPD) exposed to DEP at a dose of 30 μg/cm2. RESULTS We identified 503 and 563 differentially expressed (DE) mRNAs and a total of 10 and 14 DE lncRNAs in NHBE and DHBE-COPD cells exposed to DEP, respectively. In both NHBE and DHBE-COPD cells, enriched cancer-related pathways were identified at mRNA level, and 3 common lncRNAs OLMALINC, AC069234.2, and LINC00665 were found to be associated with cancer initiation and progression. In addition, we identified two cis-acting (TMEM51-AS1 and TTN-AS1) and several trans-acting lncRNAs (e.g. LINC01278, SNHG29, AC006064.4, TMEM51-AS1) only differentially expressed in COPD cells, which could potentially play a role in carcinogenesis and determine their susceptibility to DEP exposure. CONCLUSIONS Overall, our work highlights the potential importance of lncRNAs in regulating DEP-induced gene expression changes associated with carcinogenesis, and individuals suffering from COPD are likely to be more vulnerable to these environmental triggers.
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Affiliation(s)
- C. M. Sabbir Ahmed
- Environmental Toxicology Graduate Program, University of California, Riverside, United States
| | - Alexa Canchola
- Environmental Toxicology Graduate Program, University of California, Riverside, United States
| | - Biplab Paul
- Gastrointestinal Unit, Massachusetts General Hospital, Boston, Massachusetts 02114, United States
- Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Md Rubaiat Nurul Alam
- Environmental Toxicology Graduate Program, University of California, Riverside, United States
| | - Ying-Hsuan Lin
- Environmental Toxicology Graduate Program, University of California, Riverside, United States
- Department of Environmental Sciences, University of California, Riverside, United States
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Downregulation of hsa-miR-135b-5p Inhibits Cell Proliferation, Migration, and Invasion in Colon Adenocarcinoma. Genet Res (Camb) 2022; 2022:2907554. [PMID: 36407085 PMCID: PMC9640266 DOI: 10.1155/2022/2907554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 10/08/2022] [Indexed: 01/11/2023] Open
Abstract
Colon cancer is the most common malignant tumor of the gastrointestinal tract, and approximately 80%-90% of colon cancers are colon adenocarcinomas (COADs). This study aimed to screen key microRNAs (miRNAs) associated with COAD. Differentially expressed (DE) miRNAs were screened between COAD and adjacent cancer samples based on the Gene Expression Omnibus (GEO) and the Cancer Genome Atlas obtained from datasets. The miRNAs of interest were validated using quantitative real-time polymerase chain reaction. Moreover, the effects of hsa-miR-135b-5p on the biological behavior of COAD cells were observed. To obtain the target genes of hsa-miR-135b-5p, transcriptome sequencing of the SW480 cells was performed, followed by protein-protein interaction (PPI) network and hsa-miR-135b-5p-target gene regulatory network construction and prognostic analysis. Downregulation of hsa-miR-135b-5p significantly inhibited SW480 cell proliferation, migration, and invasion and significantly facilitated apoptosis (P < 0.05). A total of 3384 DEmRNAs were screened, and enrichment analysis showed that the upregulated mRNAs were enriched in 25 Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways and 326 Gene Ontology Biological Processes (GO-BPs) while the downregulated mRNAs were enriched in 20 KEGG pathways and 276 GO-BPs. A PPI network was then constructed, and H2BC14, H2BC3, and H4C11 had a higher degree. In addition, a total of 352 hsa-miR-135b-5p-gene regulatory relationships were identified. Prognostic analysis showed that FOXN2, NSA2, MYCBP, DIRAS2, DESI1, and RAB33B had prognostic significance (P < 0.05). In addition, the validation analysis results showed that FOXN2, NSA2, and DESI1 were significantly expressed between the miR-135b-5p-inhibitor and negative control groups (P < 0.05). Therefore, downregulation of hsa-miR-135b-5p inhibits cell proliferation, migration, and invasion in COAD, and carcinogenesis may function by targeting FOXN2, NSA2, MYCBP, DIRAS2, DESI1, and RAB33B.
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The Pyroptosis-Related Risk Genes APOBEC3D, TNFRSF14, and RAC2 Were Used to Evaluate Prognosis and as Tumor Suppressor Genes in Breast Cancer. JOURNAL OF ONCOLOGY 2022; 2022:3625790. [PMID: 36059808 PMCID: PMC9436599 DOI: 10.1155/2022/3625790] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 07/13/2022] [Accepted: 07/18/2022] [Indexed: 12/27/2022]
Abstract
Background Pyroptosis is a type of cell death that plays an important role in predicting prognosis and immunoregulation in cancers. However, the pyroptosis-related gene signature for prognosis and immune infiltration prediction has not been studied in breast cancer (BC). Methods The Gene Expression Omnibus (GEO) and Cancer Genome Atlas (TCGA) databases were used to obtain the expression and clinical data of genes. 52 pyroptosis-related genes were obtained from TCGA-BC and estimated differentially expressed genes by the limma program. To categorize the molecular subtypes of pyroptosis-related genes, the ConsensusClusterPlus tool was utilized. Cox and Lasso regression analyses were used to create a signature. TCGA-BC dataset as the training set and the GSE37751 test set for risk research. Gene set enrichment analysis (GSEA) was used to conduct KEGG and GO studies of subtype groups. We also used the ssGSEA approach in the GSVA package to calculate the risk score of immune cells. Finally, pyroptosis-related genes in BC were validated using qPCR and immunohistochemical assays. Clone formation and EDU assays were used to explore the ability of signature genes to regulate the proliferation of BC cells. Results Based on pyroptosis-related genes, the C1 and C2 subtypes were obtained. Survival analysis results showed that the C2 group had a better prognosis. Then, a three-gene signature (APOBEC3D, TNFRSF14, and RAC2) were created by Lasso regression analysis, which had a good prediction effect in the TCGA-BC and GSE37751 datasets. Our nomogram has a fair degree of accuracy in predicting the survival rates of BC patients. The pyroptosis-related signature has a good predictive effect in evaluating the tumour microenvironment score, 28 types of immune cells and response to immune checkpoint therapy. Finally, qPCR and immunohistochemistry staining results indicated that APOBEC3D, TNFRSF14, and RAC2 expression in BC tissues was low. The results of clone formation and EdU assays showed that high expression of signature genes inhibited the proliferation ability of BC cells. Conclusions Based on pyroptosis-related genes (APOBEC3D, TNFRSF14, and RAC2), we built a novel prognostic molecular model for BC that might be used to assess prognostic risk and immune infiltration in BC patients. These signature genes are also tumor suppressor genes and may serve as potential targets for BC.
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Yi J, Pan J, Zhang S, Mao W, Wang J, Wang W, Yan Z. Jiedu Huoxue decoction improves chronic abacterial prostatitis/chronic pelvic pain syndrome through activating Wnt/GSKβ/β-catenin signaling pathway and alleviating apoptosis. Pharmacotherapy 2022; 149:112830. [PMID: 35306428 DOI: 10.1016/j.biopha.2022.112830] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 03/12/2022] [Accepted: 03/14/2022] [Indexed: 01/02/2023]
Abstract
BACKGROUND Chronic abacterial prostatitis/chronic pelvic pain syndrome (CP/CPPS) accounts for 90% of clinical prostatitis, and there is no specific and effective treatment for it. Jiedu Huoxue decoction (JDHXD) has been believed to be an effective agent for CP/CPPS, but the specific mechanism remains unclear. METHODS Carrageenan and LPS were used to established the animal and cell models of CP/CPPS, respectively. The prostate index, urine volume, lumen area, epithelial thickness, and pain response time were investigated. TUNEL staining and flow cytometry were applied to measure apoptosis levels in vivo and in vitro. RESULTS JDHXD improved CP/CPPS recovery in a dose-dependent manner. JDHXD restrained apoptosis and activated Wnt/GSK-3β/β-catenin signaling pathway in the CP/CPPS animal model. Inhibition of Wnt/GSK-3β/β-catenin signaling pathway remarkably aggravated apoptosis and suppressed the improvement of CP/CPPS by JDHXD. XAX939 markedly reversed the suppression of cell apoptosis and ROS level caused by JDHXD in vitro. CONCLUSION Jiedu Huoxue decoction improved CP/CPPS through activating Wnt/GSKβ/β-catenin signaling pathway and inhibiting apoptosis. This study might provide a novel insight for the prevention and treatment of CP/CPPS through activating Wnt/GSK-3β/β-catenin signaling pathway.
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Affiliation(s)
- Jun Yi
- Department of Traditional Chinese Medicine Surgery, Affiliated Hospital of Jiangxi University of Chinese Medicine, No.445 Bayi Avenue, Nanchang 330006, China
| | - Junqing Pan
- Department of Traditional Chinese Medicine Surgery, Affiliated Hospital of Jiangxi University of Chinese Medicine, No.445 Bayi Avenue, Nanchang 330006, China
| | - Sina Zhang
- Department of Traditional Chinese Medicine Surgery, Affiliated Hospital of Jiangxi University of Chinese Medicine, No.445 Bayi Avenue, Nanchang 330006, China
| | - Wenli Mao
- Department of Traditional Chinese Medicine Surgery, Affiliated Hospital of Jiangxi University of Chinese Medicine, No.445 Bayi Avenue, Nanchang 330006, China
| | - Jiangang Wang
- Department of Traditional Chinese Medicine Surgery, Affiliated Hospital of Jiangxi University of Chinese Medicine, No.445 Bayi Avenue, Nanchang 330006, China
| | - Wanchun Wang
- Department of Traditional Chinese Medicine Surgery, Affiliated Hospital of Jiangxi University of Chinese Medicine, No.445 Bayi Avenue, Nanchang 330006, China
| | - Zhangren Yan
- Department of Traditional Chinese Medicine Surgery, Affiliated Hospital of Jiangxi University of Chinese Medicine, No.445 Bayi Avenue, Nanchang 330006, China.
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Wang L, Liu J, Tai J, Zhou N, Huang T, Xue Y, Quan Z. A prospective study revealing the role of an immune-related eRNA, WAKMAR2, in breast cancer. Sci Rep 2021; 11:15328. [PMID: 34321580 PMCID: PMC8319425 DOI: 10.1038/s41598-021-94784-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 07/16/2021] [Indexed: 12/26/2022] Open
Abstract
Enhancer RNAs (eRNAs) are a subclass of non-coding RNAs that are generated during the transcription of enhancer regions and play an important role in tumourigenesis. In this study, we focused on the crucial eRNAs that participate in immune responses in invasive breast cancer (IBC). We first used The Cancer Genome Atlas and Human enhancer RNA Atlas to screen for tissue-specific eRNAs and their target genes. Through Pearson correlation analysis with immune genes, the eRNA WAKMAR2 was identified as a key candidate involved in IBC. Our further research suggested that WAKMAR2 is crucial in regulating the tumour microenvironment and may function by regulating immune-related genes, including IL27RA, RAC2, FABP7, IGLV1-51, IGHA1, and IGHD. Quantitative reverse transcription-polymerase chain reaction was used to detect the expression of WAKMAR2 in IBC and normal tissues, and the effect of WAKMAR2 on the regulation of downstream genes in MB-231 and MCF7 cells was studied in vitro. WAKMAR2 was found to be highly involved in tumour immunity and was downregulated in IBC tissues. Furthermore, the expression of WAKMAR2 and its target genes was observed at the pan-cancer level. This study provides evidence to suggest new potential targets for the treatment of breast cancer.
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Affiliation(s)
- Linbang Wang
- Department of Orthopedic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Jingkun Liu
- Honghui Hospital, Xian Jiaotong University, Xi'an, 710072, China
| | - Jiaojiao Tai
- Honghui Hospital, Xian Jiaotong University, Xi'an, 710072, China
| | - Nian Zhou
- Department of Orthopedic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Tianji Huang
- Department of Orthopedic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Yuzhou Xue
- Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Zhengxue Quan
- Department of Orthopedic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
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Zhao T, Meng Y, Wang Y, Wang W. NDRG1 regulates osteosarcoma cells via mediating the mitochondrial function and CSCs differentiation. J Orthop Surg Res 2021; 16:364. [PMID: 34099022 PMCID: PMC8182938 DOI: 10.1186/s13018-021-02503-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 05/23/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Cancer stem cells (CSCs) are mainly contributed to malignancy metastatic potential and resistant therapy of osteosarcoma (OS). The mitochondria-related apoptosis was generally accepted as the target of tumor therapy. However, the effect of N-myc downstream-regulated gene 1 (NDRG1) on CSCs and mitochondrial health in OS is still unknown. METHODS In OS cells, MG63 and U2OS, the siRNA of NDRG1 were conducted. Transwell, western blot, RT-qPCR, and mitochondria isolation were used to identify the effect of NDRG on OS cells and mitochondria. Moreover, the differentiation-related factors of CSCs were determined. RESULTS After downregulation of NDRG1, the cell viability, invasion ability decreased whereas cell apoptosis increased. The expressions profiles of fibronectin, vimentin, vascular endothelial growth factor (VEGF), matrix metalloproteinase (MMP) 2, MMP9, and MMP13 were downregulated, but E-cadherin expression level was upregulated by NDRG1 siRNA. At the same time, cytochrome (Cyt) C levels were increased in cytosol with the decreasing in mitochondria after siRNA treatment. The mitochondrial membrane potential (MMPs) was declined, and the function of mitochondria was impeded. The expressions of uncoupling proteins (UCP) 2, voltage dependent anion channel (VDAC), peroxisome proliferator-activated receptor gamma coactivator (PGC)-1α, and cyclooxygenase (COX) 2 were downregulated by NDRG1 silencing. Moreover, NDRG performed its function primarily through the Wnt pathway and could regulate the differentiation of osteosarcoma stem cells. CONCLUSION Silencing of NDRG1 could damage the function of mitochondria, promote the CSCs differentiation, alleviating OS progression.
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Affiliation(s)
- Tong Zhao
- The First Hospital of Lanzhou University, No. 1 Dongggang West Road, Chengguan District, Lanzhou, Gansu, China
| | - Ying Meng
- Lanzhou University Second Hospital, Lanzhou, Gansu, China
| | - Yongping Wang
- The First Hospital of Lanzhou University, No. 1 Dongggang West Road, Chengguan District, Lanzhou, Gansu, China
| | - Wenji Wang
- The First Hospital of Lanzhou University, No. 1 Dongggang West Road, Chengguan District, Lanzhou, Gansu, China.
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Chen L, Dong Y, Pan Y, Zhang Y, Liu P, Wang J, Chen C, Lu J, Yu Y, Deng R. Identification and development of an independent immune-related genes prognostic model for breast cancer. BMC Cancer 2021; 21:329. [PMID: 33785008 PMCID: PMC8011146 DOI: 10.1186/s12885-021-08041-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Accepted: 03/15/2021] [Indexed: 01/01/2023] Open
Abstract
Background Breast cancer is one of the main malignant tumors that threaten the lives of women, which has received more and more clinical attention worldwide. There are increasing evidences showing that the immune micro-environment of breast cancer (BC) seriously affects the clinical outcome. This study aims to explore the role of tumor immune genes in the prognosis of BC patients and construct an immune-related genes prognostic index. Methods The list of 2498 immune genes was obtained from ImmPort database. In addition, gene expression data and clinical characteristics data of BC patients were also obtained from the TCGA database. The prognostic correlation of the differential genes was analyzed through Survival package. Cox regression analysis was performed to analyze the prognostic effect of immune genes. According to the regression coefficients of prognostic immune genes in regression analysis, an immune risk scores model was established. Gene set enrichment analysis (GSEA) was performed to probe the biological correlation of immune gene scores. P < 0.05 was considered to be statistically significant. Results In total, 556 immune genes were differentially expressed between normal tissues and BC tissues (p < 0. 05). According to the univariate cox regression analysis, a total of 66 immune genes were statistically significant for survival risk, of which 30 were associated with overall survival (P < 0.05). Finally, a 15 immune genes risk scores model was established. All patients were divided into high- and low-groups. KM survival analysis revealed that high immune risk scores represented worse survival (p < 0.001). ROC curve indicated that the immune genes risk scores model had a good reliability in predicting prognosis (5-year OS, AUC = 0.752). The established risk model showed splendid AUC value in the validation dataset (3-year over survival (OS) AUC = 0.685, 5-year OS AUC = 0.717, P = 0.00048). Moreover, the immune risk signature was proved to be an independent prognostic factor for BC patients. Finally, it was found that 15 immune genes and risk scores had significant clinical correlations, and were involved in a variety of carcinogenic pathways. Conclusion In conclusion, our study provides a new perspective for the expression of immune genes in BC. The constructed model has potential value for the prognostic prediction of BC patients and may provide some references for the clinical precision immunotherapy of patients. Supplementary Information The online version contains supplementary material available at 10.1186/s12885-021-08041-x.
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Affiliation(s)
- Lin Chen
- Department of General Surgery, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, 210009, China
| | - Yuxiang Dong
- First Clinical Medical College of Nanjing Medical University, Nanjing, 210029, China
| | - Yitong Pan
- Nanjing Medical University, Nanjing, 211116, China.,University of Chinese Academy of Sciences, Beijing, 100101, China
| | - Yuhan Zhang
- First Clinical Medical College of Nanjing Medical University, Nanjing, 210029, China
| | - Ping Liu
- Nanjing University of Chinese Medicine, Nanjing, 210029, China
| | - Junyi Wang
- Nanjing Medical University, Nanjing, 211116, China
| | - Chen Chen
- Nanjing Medical University, Nanjing, 211116, China
| | - Jianing Lu
- First Clinical Medical College of Nanjing Medical University, Nanjing, 210029, China
| | - Yun Yu
- Nanjing Medical University, Nanjing, 211116, China. .,Department of Medical Informatics, School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing, 211116, China.
| | - Rong Deng
- Department of General Surgery, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, 210009, China.
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Chen J, Yan C, Yu H, Zhen S, Yuan Q. miR-548d-3p inhibits osteosarcoma by downregulating KRAS. Aging (Albany NY) 2020; 11:5058-5069. [PMID: 31327761 PMCID: PMC6682526 DOI: 10.18632/aging.102097] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 07/11/2019] [Indexed: 12/14/2022]
Abstract
MicroRNAs (miRNAs) are known to be associated with certain cancers, including osteosarcoma. We examined osteosarcoma tissues and cell lines, and found that most expressed lower levels of miR-548d-3p than adjacent tissues and normal cell lines. KRAS was identified as a potential target gene of miR-548d-3p. In osteosarcoma cells, miR-548d-3p exerted tumor-suppressive effects by downregulating KRAS. Functional assays revealed that miR-548d-3p mimics dramatically reduced cell growth and migration in vitro. These results suggest that miR-548d-3p mimics could be applied for osteosarcoma treatment.
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Affiliation(s)
- Jianhua Chen
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang 110001, People's Republic of China
| | - Chongnan Yan
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang 110001, People's Republic of China
| | - Honghao Yu
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang 110001, People's Republic of China
| | - Shihan Zhen
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang 110001, People's Republic of China
| | - Quan Yuan
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang 110001, People's Republic of China
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Circular RNA hsa_circ_0002052 promotes osteosarcoma via modulating miR-382/STX6 axis. Hum Cell 2020; 33:810-818. [PMID: 32274658 DOI: 10.1007/s13577-020-00335-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2019] [Accepted: 02/15/2020] [Indexed: 12/20/2022]
Abstract
Circular RNAs (circRNAs) exert pivotal effects on regulating the progression of osteosarcoma (OS). It was found through microarray analysis that circ-0002052 is abnormally expressed in OS, but the role of circ-0002052 in OS remains obscure. The results of this research manifested that relative to that in non-tumor controls, circ-0002052 level was raised in OS tissues. Up-regulated circ-0002052 was associated with advanced stage, tumor size, and metastasis. Additionally, circ-0002052 elevation indicated a low survival rate in OS patients and silencing of circ-0002052 suppressed proliferation, migration, and invasion of OS cells. It was proved that circ-0002052 sponged miR-382 and stimulated STX6 expression, thus activating Wnt/β-catenin. The function of circ-0002052 reduction in OS cells was effectively reversed by miR-382 suppression. To sum up, it can be concluded that circ-0002052, functioning as a sponge for miR-382, enhances the activation of Wnt/β-catenin mediated by STX6 to stimulate the progression of OS, and circ-0002052 may be an underlying treatment target and a biomarker for prognosis of osteosarcoma.
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13
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Jiang XH, Chen Y, Ding YY, Qiu H, Zhou DY, Qiu CL. Effect of Grilled Nux Vomica on Differential RNA Expression Profile of Gastrocnemius Muscle and Toll‑Like Receptor 4 (TLR-4)/Nuclear Factor kappa B (NF-κB) Signaling in Experimental Autoimmune Myasthenia Gravis Rats. Med Sci Monit 2020; 26:e919150. [PMID: 32052794 PMCID: PMC7034401 DOI: 10.12659/msm.919150] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Myasthenia gravis (MG) is a progressive autoimmune disorder caused by the production of antibodies directed against acetylcholine receptors (AChRs), resulting in muscle weakness and fatigue. This study aimed to explore the effect and mechanism of grilled nux vomica (GNV) in experimental autoimmune myasthenia gravis (EAMG) rats. MATERIAL AND METHODS Rat 97-116 peptides were used to mediate disease in the EAMG model in SPF female Lewis rats. The treatment groups received grilled nux vomica (75 mg/kg, 150 mg/kg, and 225 mg/kg). The autoantibody and inflammatory cytokines levels were measured by enzyme-linked immunosorbent assay (ELISA). RNA profiling was performed on high-dose and model group rats. Profiling results and TLR-4/NF-kappaB signaling were validated by q-PCR and Western blot analysis. RESULTS The results showed that GNV could attenuate the symptoms of EAMG rats. There was a decreased level of AChR-ab, IFN-γ, TNF-alpha, IL-2, IL-4, and IL-17 levels, and an increased level of TGF-ß1. In total, 235 differentially expressed genes (DEGs), consisting of 175 upregulated DEGs and 60 downregulated DEGs, were identified. Functional annotation demonstrated that DEGs were largely associated with leukocyte cell-cell adhesion, NF-kappa B signaling pathway, muscle contraction, and cardiac muscle contraction pathway. Rac2, Itgb2, Lcp2, Myl3, and Tnni1 were considered as hub genes with a higher degree value in the protein-protein interaction (PPI) network. The q-PCR and Western blot results of hub genes were consistent with RNA profiles. GNV treatment also significantly reduced the TLR-4 and NF-kappaB p65 protein expression in EAMG rats. CONCLUSIONS These results indicate that grilled nux vomica ameliorates EAMG by depressing the TLR-4/NF-kappaB signaling pathway, and hub genes may serve as potential targets for MG treatment.
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Affiliation(s)
- Xu Hong Jiang
- Department of Emergency Medicine, First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China (mainland)
| | - Yi Chen
- Department of Emergency Medicine, First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China (mainland)
| | - Yang Yang Ding
- Department of Emergency Medicine, First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China (mainland)
| | - Hui Qiu
- Department of Traditional Chinese Medicine (TCM), Third Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China (mainland)
| | - Di Yi Zhou
- Department of Endocrinology, Zhejiang Integrated and Western Medicine Hospital, Hangzhou, Zhejiang, China (mainland)
| | - Chang Lin Qiu
- Department of Neurology, First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China (mainland)
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