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Wang R, Wu NS, Wang L, Zhang ZZ, Wang CF, Wang Y, Liang Y, Zhang Y, Qi XW. A pan-cancer analysis of Wnt family member 7B in human cancers. CANCER INNOVATION 2024; 3:e139. [PMID: 39257440 PMCID: PMC11386237 DOI: 10.1002/cai2.139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 03/27/2024] [Accepted: 04/29/2024] [Indexed: 09/12/2024]
Abstract
Background Previous studies have highlighted the crucial role of Wnt7B in the development of various cancers, including breast, pancreatic, and gastric cancers. However, research into the involvement of Wnt7B is often confined to specific tumor types, with a noticeable lack of comprehensive studies spanning multiple cancer forms. The potential of Wnt7B as a diagnostic or prognostic cancer biomarker has not been fully explored. Methods In this study, we combined bioinformatics and immunohistochemistry analyses to examine the expression patterns and functions of Wnt7B in cancerous and adjacent noncancerous tissues across a range of tumors. Results Our data indicate that Wnt7B may serve as a novel prognostic biomarker and therapeutic target in certain cancers. Conclusion We found significant upregulation of Wnt7B expression levels in the majority of cancer cases examined. Furthermore, Wnt7B can influence cancer prognosis by modulating the tumor microenvironment, immune cell infiltration, and tumor stemness, among other factors. Additionally, we examined the associations between anticancer drug sensitivity and Wnt7B expression, which could aid in the development of more precise clinical therapies.
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Affiliation(s)
- Rui Wang
- Department of Breast and Thyroid Surgery, Southwest Hospital Army Medical University Chongqing China
| | - Ni-Sha Wu
- Department of Breast and Thyroid Surgery, Southwest Hospital Army Medical University Chongqing China
| | - Li Wang
- Department of Infection China Academy of Chinese Medical Sciences, Guang'anmen Hospital Beijing China
| | - Zhi-Zhao Zhang
- Department of Breast and Thyroid Surgery, Southwest Hospital Army Medical University Chongqing China
| | - Cheng-Fang Wang
- Department of Breast and Thyroid Surgery, Southwest Hospital Army Medical University Chongqing China
| | - Yan Wang
- Department of Breast and Thyroid Surgery, Southwest Hospital Army Medical University Chongqing China
| | - Yan Liang
- Department of Breast and Thyroid Surgery, Southwest Hospital Army Medical University Chongqing China
| | - Yi Zhang
- Department of Breast and Thyroid Surgery, Southwest Hospital Army Medical University Chongqing China
| | - Xiao-Wei Qi
- Department of Breast and Thyroid Surgery, Southwest Hospital Army Medical University Chongqing China
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Koh YW, Han JH, Haam S, Lee HW. Machine learning-driven prediction of brain metastasis in lung adenocarcinoma using miRNA profile and target gene pathway analysis of an mRNA dataset. Clin Transl Oncol 2024; 26:2296-2308. [PMID: 38568412 DOI: 10.1007/s12094-024-03474-9] [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: 12/21/2023] [Accepted: 03/21/2024] [Indexed: 08/20/2024]
Abstract
BACKGROUND Brain metastasis (BM) is common in lung adenocarcinoma (LUAD) and has a poor prognosis, necessitating predictive biomarkers. MicroRNAs (MiRNAs) promote cancer cell growth, infiltration, and metastasis. However, the relationship between the miRNA expression profiles and BM occurrence in patients with LUAD remains unclear. METHODS We conducted an analysis to identify miRNAs in tissue samples that exhibited different expression levels between patients with and without BM. Using a machine learning approach, we confirmed whether the miRNA profile could be a predictive tool for BM. We performed pathway analysis of miRNA target genes using a matched mRNA dataset. RESULTS We selected 25 miRNAs that consistently exhibited differential expression between the two groups of 32 samples. The 25-miRNA profile demonstrated a strong predictive potential for BM in both Group 1 and Group 2 and the entire dataset (area under the curve [AUC] = 0.918, accuracy = 0.875 in Group 1; AUC = 0.867, accuracy = 0.781 in Group 2; and AUC = 0.908, accuracy = 0.875 in the entire group). Patients predicted to have BM, based on the 25-miRNA profile, had lower survival rates. Target gene analysis of miRNAs suggested that BM could be induced through the ErbB signaling pathway, proteoglycans in cancer, and the focal adhesion pathway. Furthermore, patients predicted to have BM based on the 25-miRNA profile exhibited higher expression of the epithelial-mesenchymal transition signature, TWIST, and vimentin than those not predicted to have BM. Specifically, there was a correlation between EGFR mRNA levels and BM. CONCLUSIONS This 25-miRNA profile may serve as a biomarker for predicting BM in patients with LUAD.
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Affiliation(s)
- Young Wha Koh
- Department of Pathology, Ajou University School of Medicine, 206 Worldcup-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16499, Republic of Korea.
| | - Jae-Ho Han
- Department of Pathology, Ajou University School of Medicine, 206 Worldcup-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16499, Republic of Korea
| | - Seokjin Haam
- Department of Thoracic and Cardiovascular Surgery, Ajou University School of Medicine, Suwon-si, Republic of Korea
| | - Hyun Woo Lee
- Department of Hematology-Oncology, Ajou University School of Medicine, Suwon-si, Republic of Korea
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Lu H, Yu X, Li W, Zhang Y, Sun S. Prognosis and metabolism with a Golgi apparatus-related genes-based formula in breast cancer. Medicine (Baltimore) 2024; 103:e39177. [PMID: 39151519 PMCID: PMC11332736 DOI: 10.1097/md.0000000000039177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 03/20/2024] [Accepted: 07/15/2024] [Indexed: 08/19/2024] Open
Abstract
The Golgi apparatus (GA), an organelle that processes, sorts, and transports proteins synthesized by the endoplasmic reticulum, is also involved in many cellular processes associated with cancer, such as angiogenesis, the innate immune response, and tumor invasion and migration. We aimed to construct a breast cancer (BC) prognosis prediction model based on GA-related genetic information to evaluate the prognosis of patients with BC more accurately than existing models and to stratify patients for clinical therapy. In this study, The Cancer Genome Atlas-breast invasive carcinoma was used as the training cohort, and the Molecular Taxonomy of Breast Cancer International Consortium cohort was used as the validation cohort. Using bioinformatics methods, we constructed a GA-related gene risk score (GRS). The GRS was used to divide BC patients into a high-GRS group and a low-GRS group, and functional analysis, survival analysis, mutation analysis, immune landscape analysis, and metabolic analysis were performed to compare the 2 groups. Finally, a nomogram was constructed for clinical application. The genes in the GRS model were mainly related to the glucose metabolism pathway, and the main mutations in the 2 groups of patients were mutations in TP53 and CHD1. The mutation rate in the high-GRS group was greater than that in the low-GRS group. The high GRS group had higher tumor immune activity glycolysis; the pentose phosphate pathway tended to be the dominant metabolic pathways in this group, while fatty acid oxidation and glutamine catabolism tended to be dominant in the low-GRS group. GA-related genes were used to construct a prediction model for BC patients and had high accuracy in predicting prognosis. The mutations associated with the GRS are mainly TP53 and CDH1. Interestingly, the GRS is correlated with glucose metabolism in terms of gene expression and functional enrichment. In summary, the role of GRS-related genes in glucose metabolism is worthy of further study.
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Affiliation(s)
- Hang Lu
- Department of Breast and Thyroid Surgery, Renmin Hospital of Wuhan University, Wuhan, China
- Department of Cardiovascular Surgery, Xijing Hospital, Xi’an, China
| | - Xin Yu
- Department of Breast and Thyroid Surgery, Renmin Hospital of Wuhan University, Wuhan, China
| | - Wenge Li
- Department of Oncology, Shanghai Artemed Hospital, Shanghai, China
| | - Yimin Zhang
- Department of Breast and Thyroid Surgery, Renmin Hospital of Wuhan University, Wuhan, China
| | - Shengrong Sun
- Department of Breast and Thyroid Surgery, Renmin Hospital of Wuhan University, Wuhan, China
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Block I, Burton M, Sørensen KP, Larsen MJ, Do TTN, Bak M, Cold S, Thomassen M, Tan Q, Kruse TA. Ensemble-based classification using microRNA expression identifies a breast cancer patient subgroup with an ultralow long-term risk of metastases. Cancer Med 2024; 13:e7089. [PMID: 38676390 PMCID: PMC11053369 DOI: 10.1002/cam4.7089] [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: 03/02/2023] [Revised: 06/28/2023] [Accepted: 01/18/2024] [Indexed: 04/28/2024] Open
Abstract
BACKGROUND Current clinical markers overestimate the recurrence risk in many lymph node negative (LNN) breast cancer (BC) patients such that a majority of these low-risk patients unnecessarily receive systemic treatments. We tested if differential microRNA expression in primary tumors allows reliable identification of indolent LNN BC patients to provide an improved classification tool for overtreatment reduction in this patient group. METHODS We collected freshly frozen primary tumors of 80 LNN BC patients with recurrence and 80 recurrence-free patients (mean follow-up: 20.9 years). The study comprises solely systemically untreated patients to exclude that administered treatments confound the metastasis status. Samples were pairwise matched for clinical-pathological characteristics to minimize dependence of current markers. Patients were classified into risk-subgroups according to the differential microRNA expression of their tumors via classification model building with cross-validation using seven classification methods and a voting scheme. The methodology was validated using available data of two independent cohorts (n = 123, n = 339). RESULTS Of the 80 indolent patients (who would all likely receive systemic treatments today) our ultralow-risk classifier correctly identified 37 while keeping a sensitivity of 100% in the recurrence group. Multivariable logistic regression analysis confirmed independence of voting results from current clinical markers. Application of the method in two validation cohorts confirmed successful classification of ultralow-risk BC patients with significantly prolonged recurrence-free survival. CONCLUSION Profiles of differential microRNAs expression can identify LNN BC patients who could spare systemic treatments demanded by currently applied classifications. However, further validation studies are required for clinical implementation of the applied methodology.
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Affiliation(s)
- Ines Block
- Department of Clinical GeneticsOdense University HospitalOdenseDenmark
- Present address:
Department of Mathematics and Computer ScienceUniversity of MarburgMarburgGermany
| | - Mark Burton
- Department of Clinical GeneticsOdense University HospitalOdenseDenmark
- Human Genetics, Department of Clinical ResearchUniversity of Southern DenmarkOdenseDenmark
- Clinical Genome CenterUniversity of Southern Denmark and Region of Southern DenmarkOdenseDenmark
| | | | - Martin J. Larsen
- Department of Clinical GeneticsOdense University HospitalOdenseDenmark
- Human Genetics, Department of Clinical ResearchUniversity of Southern DenmarkOdenseDenmark
| | - Thi T. N. Do
- Department of Clinical GeneticsOdense University HospitalOdenseDenmark
- Human Genetics, Department of Clinical ResearchUniversity of Southern DenmarkOdenseDenmark
| | - Martin Bak
- Department of PathologyOdense University HospitalOdenseDenmark
- Department of PathologyHospital of Southwest JutlandEsbjergDenmark
| | - Søren Cold
- Department of OncologyOdense University HospitalOdenseDenmark
| | - Mads Thomassen
- Department of Clinical GeneticsOdense University HospitalOdenseDenmark
- Human Genetics, Department of Clinical ResearchUniversity of Southern DenmarkOdenseDenmark
- Clinical Genome CenterUniversity of Southern Denmark and Region of Southern DenmarkOdenseDenmark
| | - Qihua Tan
- Human Genetics, Department of Clinical ResearchUniversity of Southern DenmarkOdenseDenmark
- Clinical Genome CenterUniversity of Southern Denmark and Region of Southern DenmarkOdenseDenmark
- Epidemiology, Department of Public HealthUniversity of Southern DenmarkOdenseDenmark
| | - Torben A. Kruse
- Department of Clinical GeneticsOdense University HospitalOdenseDenmark
- Human Genetics, Department of Clinical ResearchUniversity of Southern DenmarkOdenseDenmark
- Clinical Genome CenterUniversity of Southern Denmark and Region of Southern DenmarkOdenseDenmark
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Jin K, Li Y, Wei R, Liu Y, Wang S, Tian H. BZW2 promotes malignant progression in lung adenocarcinoma through enhancing the ubiquitination and degradation of GSK3β. Cell Death Discov 2024; 10:105. [PMID: 38424042 PMCID: PMC10904796 DOI: 10.1038/s41420-024-01879-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 02/20/2024] [Accepted: 02/21/2024] [Indexed: 03/02/2024] Open
Abstract
The role of Basic leucine zipper and W2 domains 2 (BZW2) in the advancement of different types of tumors is noteworthy, but its involvement and molecular mechanisms in lung adenocarcinoma (LUAD) remain uncertain. Through this investigation, it was found that the upregulation of BZW2 was observed in LUAD tissues, which was associated with an unfavorable prognosis for individuals diagnosed with LUAD, as indicated by data from Gene Expression Omnibus and The Cancer Genome Atlas databases. Based on the clinicopathologic characteristics of LUAD patients from the tissue microarray, both univariate and multivariate analyses indicated that BZW2 functioned as an independent prognostic factor for LUAD. In terms of mechanism, BZW2 interacted with glycogen synthase kinase-3 beta (GSK3β) and enhanced the ubiquitination-mediated degradation of GSK3β through slowing down of the dissociation of the ubiquitin ligase complex, which consists of GSK3β and TNF receptor-associated factor 6. Moreover, BZW2 stimulated Wnt/β-catenin signaling pathway through GSK3β, thereby facilitating the advancement of LUAD. In conclusion, BZW2 was a significant promoter of LUAD. The research we conducted identified a promising diagnostic and therapeutic target for LUAD.
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Affiliation(s)
- Kai Jin
- Department of Thoracic Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Yongmeng Li
- Department of Thoracic Surgery, the First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong, China
| | - Ruyuan Wei
- Department of Cardiovascular Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Yanfei Liu
- Department of Anesthesiology, Qilu Children's Hospital of Shandong University, Jinan, China
| | - Shuai Wang
- Department of Thoracic Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Hui Tian
- Department of Thoracic Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, China.
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Xie D, Li S, Wang X, Fang L. lncRNA HCG11 suppresses cell proliferation in hormone receptor-positive breast cancer via SRSF1/β-catenin. Aging (Albany NY) 2023; 15:179-192. [PMID: 36602530 PMCID: PMC9876628 DOI: 10.18632/aging.204468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 12/29/2022] [Indexed: 01/05/2023]
Abstract
Hormone receptor positive (HR-positive) breast cancer (BC) is the most common subtype of breast cancer. Despite adjuvant endocrine therapy and chemotherapy-based treatment, the therapeutic response is often not satisfactory in HR-positive BC patients. Therefore, elucidating the mechanisms that regulate the progression of HR-positive BC is urgently required to identify new therapeutic targets. Previously, HLA Complex Group 11 (HCG11), located on the major histocompatibility complex (MHC) region, was found to be abnormally expressed in a variety of tumor cells. However, the role of HCG11 in HR-positive BC cells has not been explored to date. In the current study, we found that HCG11 is downregulated in HR-positive BC tissues and cell lines. Both in vitro and in vivo, HCG11 acts as a tumor suppressor in HR-positive BC cells. Furthermore, the mechanistic details unraveled that HCG11 recruits Serine/arginine-rich splicing factor 1 (SRSF1) to target β-catenin mRNA for promoting the translation of β-catenin. Our study emphasizes the potential of HCG11 as a novel intervention target for HR-positive BC treatment.
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Affiliation(s)
- Dan Xie
- Changzhou Traditional Chinese Medicine Hospital Affiliated to Nanjing University of Chinese Medicine, Changzhou 213000, Jiangsu, P.R. China
| | - Saiyang Li
- The Third Affiliated Hospital of Soochow University, Changzhou 213000, Jiangsu, P.R. China
| | - Xuehui Wang
- Department of Breast and Thyroid Surgery, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai 200072, P.R. China
| | - Lin Fang
- Department of Breast and Thyroid Surgery, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai 200072, P.R. China
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Liu LJ, Lv Z, Xue X, Xing ZY, Zhu F. Canonical WNT Signaling Activated by WNT7B Contributes to L-HBs-Mediated Sorafenib Resistance in Hepatocellular Carcinoma by Inhibiting Mitophagy. Cancers (Basel) 2022; 14:5781. [PMID: 36497264 PMCID: PMC9741164 DOI: 10.3390/cancers14235781] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 11/20/2022] [Accepted: 11/21/2022] [Indexed: 11/27/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is the third leading cause of cancer death globally, with hepatitis B virus (HBV) infection accounting for over half of all cases. HBV leads to the development of HCC according to a body of literature. Our previous research and other studies also suggest that HBV causes chemotherapeutic treatment resistance, however, the mechanism is uncertain. The WNT family, which encodes secreted signaling molecules, has been linked to carcinogenesis in a variety of malignancies, including HCC. However, little is known regarding WNT7B, a WNT ligand, in the development of HCC and HBV-induced chemoresistance. In this study, the bioinformatics analysis and immunohistochemistry (IHC) staining of clinical samples revealed that WNT7B was overexpressed in HBV-associated HCC tissues versus nontumor liver tissues, which was related to HCC patient survival. Further study in vitro showed that WNT7B and its receptor frizzled-4 (FZD4) were upregulated in response to large hepatitis B surface antigens (L-HBs). L-HBs increased canonical WNT signaling in HCC cells through WNT7B/FZD4. According to functional experiments, WNT7B enhanced the cell proliferation and metastasis in HCC. In vivo and in vitro studies investigated whether L-HBs induced sorafenib resistance by WNT7B in HCC. Interestingly, L-HBs suppressed sorafenib-induced mitophagy by increasing WNT7B/CTNNB1 signaling, resulting in chemoresistance. The findings revealed that WNT7B could be a promising molecular therapeutic target as well as a predictor of sorafenib resistance in HBV-related HCC. The suppression of HBV structural proteins such as L-HBs may play a crucial role in systemic chemotherapy resistance in HBV-associated HCC.
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Affiliation(s)
| | | | | | | | - Fan Zhu
- State Key Laboratory of Virology and Hubei Province Key Laboratory of Allergy & Immunology, Department of Medical Microbiology, School of Medicine, Wuhan University, Wuhan 430071, China
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Hsa_circ_0097271 Knockdown Attenuates Osteosarcoma Progression via Regulating miR-640/MCAM Pathway. DISEASE MARKERS 2022; 2022:8084034. [DOI: 10.1155/2022/8084034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 10/09/2022] [Accepted: 10/14/2022] [Indexed: 11/17/2022]
Abstract
Background. The dysregulation of circular RNAs (circRNAs) participates in the malignant progression of multiple cancers, including osteosarcoma (OS). However, the role of circ_0097271 in OS development remains unclear. We thus aimed at unveiling the functional role and mechanism of circ_0097271 in OS. Methods. The expressions of circ_0097271, miR-640, and MCAM in OS were analyzed by qPCR. Cell proliferation and migration were inspected by CCK-8 assay, colony formation assay, and Transwell assay. Circ_0097271’s role in vivo was assayed by establishing animal models. The predicted binding relationship between miR-640 and circ_0097271 or MCAM was verified by dual-luciferase reporter or RIP assay. Results. Circ_0097271’s expression was enhanced in OS samples and cells. The knockdown of circ_0097271 restrained OS cell growth and migration, and its downregulation also blocked solid tumor growth in vivo. Circ_0097271 targeted miR-640 and negatively modulated miR-640 expression. MiR-640 was poorly expressed in OS, and its depletion recovered OS cell growth and migration that were repressed by circ_0097271 knockdown. MiR-640 bound to MCAM 3’UTR and thus suppressed MCAM expression. MCAM knockdown repressed OS cell growth and migration, while additional miR-640 depletion partially abolished the anticancer effects of MCAM knockdown in OS cells. Conclusion. Circ_0097271 is an oncogenic driver and contributes to OS development via targeting the miR-640/MCAM pathway, which provides a potential opinion for OS treatment.
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MicroRNA-640 Inhibition Enhances the Chemosensitivity of Human Glioblastoma Cells to Temozolomide by Targeting Bcl2 Modifying Factor. Biochem Genet 2022; 61:538-550. [PMID: 35984538 DOI: 10.1007/s10528-022-10264-x] [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: 08/05/2022] [Indexed: 11/02/2022]
Abstract
Glioblastoma (GBM) is the most malignant and challenging type of astrocytoma and also notoriously acknowledged as the most common primary brain tumor globally. Currently, chemotherapy is the most master therapy for tumor and is essential in clinical treatment for GBM. Nevertheless, the characterization of chemotherapy resistance seriously hinders clinical chemotherapy treatment. Accordingly, there are imperious demands for the exploitation of novel chemosensitizer to promote the efficacy of chemotherapy. Our current study was conducted to probe into the potential impacts of microRNA (miR)-640 on the chemosensitivity in GBM and the associated underlying mechanism. Initially, TargetScan software was utilized to predict the targeted genes of miR-640, and the target relationship between miR-640 and Bcl-2-modifying factor (BMF) was validated by double luciferase report assay. Additionally, to explore the role of miR-640/BMF in U251 cells, miR-640 inhibitor/BMF-siRNA was used. U251 cells were processed with 100 μM temozolomide (TMZ) and detected with CCK-8 kit. Eventually, RT-qPCR and Western blotting were used for evaluating Bcl-2, Bax mRNA, and protein expression level. Flow cytometry analysis was performed to measure cellular apoptosis. Initially, the results indicated that BMF was the target gene of miR-640. MiR-640 negatively regulated BMF expression in GBM cells. Besides, the findings revealed that miR-640 inhibition significantly inhibited U251 cell proliferation, promoted cell apoptosis, and increased the sensitivity of GBM cells to TMZ by targeting BMF. Moreover, BMF overexpression significantly suppressed U251 cell proliferation, induced cell apoptosis, and increased the sensitivity of GBM cells to TMZ. Inhibition of miR-640 expression enhances chemosensitivity of human GBM cells to TMZ by targeting BMF.
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Valacchi G, Pambianchi E, Coco S, Pulliero A, Izzotti A. MicroRNA Alterations Induced in Human Skin by Diesel Fumes, Ozone, and UV Radiation. J Pers Med 2022; 12:176. [PMID: 35207665 PMCID: PMC8880698 DOI: 10.3390/jpm12020176] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 01/21/2022] [Accepted: 01/24/2022] [Indexed: 11/17/2022] Open
Abstract
Epigenetic alterations are a driving force of the carcinogenesis process. MicroRNAs play a role in silencing mutated oncogenes, thus defending the cell against the adverse consequences of genotoxic damages induced by environmental pollutants. These processes have been well investigated in lungs; however, although skin is directly exposed to a great variety of environmental pollutants, more research is needed to better understand the effect on cutaneous tissue. Therefore, we investigated microRNA alteration in human skin biopsies exposed to diesel fumes, ozone, and UV light for over 24 h of exposure. UV and ozone-induced microRNA alteration right after exposure, while the peak of their deregulations induced by diesel fumes was reached only at the end of the 24 h. Diesel fumes mainly altered microRNAs involved in the carcinogenesis process, ozone in apoptosis, and UV in DNA repair. Accordingly, each tested pollutant induced a specific pattern of microRNA alteration in skin related to the intrinsic mechanisms activated by the specific pollutant. These alterations, over a short time basis, reflect adaptive events aimed at defending the tissue against damages. Conversely, whenever environmental exposure lasts for a long time, the irreversible alteration of the microRNA machinery results in epigenetic damage contributing to the pathogenesis of inflammation, dysplasia, and cancer induced by environmental pollutants.
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Affiliation(s)
- Giuseppe Valacchi
- Animal Science Department, Plants for Human Health Institute, North Carolina State University, Research Campus Kannapolis, Kannapolis, NC 28081, USA; (G.V.); (E.P.)
- Department of Environmental Sciences and Prevention, University of Ferrara, 44121 Ferrara, Italy
- Department of Food and Nutrition, Kyung Hee University, Seoul 130-701, Korea
| | - Erika Pambianchi
- Animal Science Department, Plants for Human Health Institute, North Carolina State University, Research Campus Kannapolis, Kannapolis, NC 28081, USA; (G.V.); (E.P.)
| | - Simona Coco
- Lung Cancer Unit, IRCCS Ospedale Policlinico San Martino, 16132 Genova, Italy;
| | | | - Alberto Izzotti
- Department of Experimental Medicine, University of Genova, 16132 Genova, Italy
- UOC Mutagenesis and Cancer Prevention, IRCCS San Martino Hospital, 16132 Genova, Italy
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11
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Zhou Y, Xu Z, Wang Y, Song Q, Yin R. LncRNA MALAT1 mediates osteogenic differentiation in osteoporosis by regulating the miR-485-5p/WNT7B axis. Front Endocrinol (Lausanne) 2022; 13:922560. [PMID: 36760811 PMCID: PMC9904362 DOI: 10.3389/fendo.2022.922560] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Accepted: 12/28/2022] [Indexed: 01/26/2023] Open
Abstract
INTRODUCTION Accumulating evidence demonstrates that long non-coding RNAs (lncRNAs) are associated with the development of osteoporosis. METHODS This study aimed to investigate the effects of MALAT1 on osteogenic differentiation and cell apoptosis in osteoporosis. MALAT1 level, detected by RT-qPCR, was downregulated in hindlimb unloading (HU) mice and simulated microgravity (MG)-treated MC3T3-E1 cells. Moreover, osteogenic differentiation-related factor (Bmp4, Col1a1, and Spp1) levels were measured by RT-qPCR and Western blot. ALP activity was detected, and ALP staining was performed. Cell apoptosis was assessed by flow cytometry. RESULTS The results revealed that MALAT1 upregulated the expression of Bmp4, Col1a1, and Spp1, and enhanced ALP activity. Knockdown of MALAT1 suppressed their expression and ALP activity, suggesting that MALAT1 promoted osteogenic differentiation. Additionally, MALAT1 inhibited apoptosis, increased Bax and caspase-3 levels, and decreased Bcl-2 level. However, knockdown of MALAT1 had opposite results. In MG cells, MALAT1 facilitated osteogenic differentiation and suppressed apoptosis. Furthermore, miR-485-5p was identified as a target of MALAT1, and WNT7B was verified as a target of miR-485-5p. Overexpression of miR-485-5p rescued the promotion of osteogenic differentiation and the inhibition of apoptosis induced by MALAT1. Knockdown of WNT7B abolished the facilitation of osteogenic differentiation and the suppression of apoptosis induced by downregulation of miR-485-5p. DISCUSSION In conclusion, MALAT1 promoted osteogenic differentiation and inhibited cell apoptosis through the miR-485-5p/WNT7B axis, which suggested that MALAT1 is a potential target to alleviate osteoporosis.
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Affiliation(s)
- Yuan Zhou
- Department of Clinical Laboratory, the First Hospital of Jilin University, Changchun, Jilin, China
| | - Zhuo Xu
- Department of Rehabilitation, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Yuanyi Wang
- Department of Spine Surgery, the First Hospital of Jilin University, Changchun, Jilin, China
| | - Qiang Song
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Ruofeng Yin
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
- *Correspondence: Ruofeng Yin,
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Pei L, Lv X, Jia G, Tan X, Li M, Zhang A. Silencing circular RNA circ_0054537 and upregulating microRNA-640 suppress malignant progression of renal cell carcinoma via regulating neuronal pentraxin-2 (NPTX2). Bioengineered 2021; 12:8279-8295. [PMID: 34565284 PMCID: PMC8806977 DOI: 10.1080/21655979.2021.1984002] [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] [Indexed: 11/16/2022] Open
Abstract
Hsa_circ_0054537 (circ_0054537) is a novel tumor-related circular RNA in renal cell carcinoma (RCC), and we intended to ascertain its dysregulation and functions in RCC malignant progression, as well as the underlying mechanism via serving as competing endogenous RNA (ceRNA). In this research, using real-time quantitative PCR, we found circ_0054537 was upregulated in RCC tissues and cells, and distributed throughout the cytoplasm. Then, functional effects of circ_0054537 in RCC were detected using cell counting kit-8, transwell, flow cytometry and glycolysis stress test and adenosine Triphosphate (ATP) assays. The results uncovered that circ_0054537 knockdown inhibited cell proliferation, migration, invasion, autophagy and glycolysis, but promoted apoptosis in RCC cells. Notably, circ_0054537 was identified as a ceRNA for microRNA (miR)-640, and miR-640 could target neuronal pentraxin-2 (NPTX2), as evidenced by dual-luciferase reporter assay and RNA immunoprecipitation assay. Besides, miR-640 downregulation or NPTX2 overexpression partly overturned the tumor suppressor function of circ_0054537 silence and miR-640 overexpression in RCC cells. Additionally, RCC cell growth in vivo was retarded by circ_0054537 silence. In conclusion, circ_0054537/miR-640/NPTX2 ceRNA pathway regulated RCC malignant progression in vitro and curbed RCC tumor growth in vivo, which could be a potential diagnosis and therapeutic target of RCC.
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Affiliation(s)
- Long Pei
- Department of Urology, The Fourth Hospital of Hebei Medical University, Shijiazhuang City, Hebei Province, China
| | - Xianqiang Lv
- Department of Urology, The Fourth Hospital of Hebei Medical University, Shijiazhuang City, Hebei Province, China
| | - Gaopei Jia
- Department of Urology, The Fourth Hospital of Hebei Medical University, Shijiazhuang City, Hebei Province, China
| | - Xiaoliang Tan
- Department of Urology, The Fourth Hospital of Hebei Medical University, Shijiazhuang City, Hebei Province, China
| | - Ming Li
- Department of Urology, The Fourth Hospital of Hebei Medical University, Shijiazhuang City, Hebei Province, China
| | - Aili Zhang
- Department of Urology, The Fourth Hospital of Hebei Medical University, Shijiazhuang City, Hebei Province, China
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