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Fu Y, Chen B, Gao T, Wang Z. CircSLC25A16 facilitates the development of non-small-cell lung cancer through the miR-335-5p/CISD2 axis. Thorac Cancer 2024; 15:1490-1501. [PMID: 38803052 PMCID: PMC11219286 DOI: 10.1111/1759-7714.15163] [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: 09/04/2023] [Revised: 10/31/2023] [Accepted: 11/02/2023] [Indexed: 05/29/2024] Open
Abstract
BACKGROUND Non-small-cell lung cancer (NSCLC) is a common malignancy with high morbidity and mortality. Circular RNAs are widely involved in NSCLC progression. However, the mechanism of circSLC25A16 in NSCLC has not been reported. METHODS The expressions of circSLC25A16, microRNA-335-5p (miR-335-5p), and CDGSH iron-sulfur domain-containing protein 2 (CISD2) were monitored by quantitative real-time fluorescence polymerase chain reaction. Western blot was also carried out to measure the protein levels of CISD2, hexokinase 2 (HK2), and lactate dehydrogenase A (LDHA). For functional analysis, cell counting kit-8 assay, 5-ethynyl-2'-deoxyuridine, flow cytometry, transwell, and wound healing assays were utilized to examine cell proliferation, apoptosis, and migration. Glucose uptake and lactate production were detected using commercial kits. The relationship between miR-335-5p and circSLC25A16 or CISD2 was verified by dual-luciferase reporter and RNA immunoprecipitation assays. Furthermore, tumor xenograft was established to explore the function of circSLC25A16 in vivo. RESULTS CircSLC25A16 and CISD2 were overexpressed in NSCLC, but miR-335-5p was downregulated. CircSLC25A16 acted as a miR-335-5p sponge, and silencing of circSLC25A16 arrested cell proliferation, migration, and glycolysis, and promoted apoptosis, but these impacts were resumed by miR-335-5p inhibition. CISD2 was a miR-335-5p target, and overexpression of CISD2 abolished the suppressive function of miR-335-5p mimic on the malignant behavior of NSCLC cells. CircSLC25A16 could adsorb miR-335-5p to mediate CISD2 expression. Additionally, silencing circSLC25A16 restrained the growth of NSCLC tumor xenograft in vivo. CONCLUSION CircSLC25A16 facilitated NSCLC progression via the miR-335-5p/CISD2 axis, implying that circSLC25A16 may serve as a novel biomarker for NSCLC treatment.
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Affiliation(s)
- Yu Fu
- Department of Respiratory MedicineYiwu Fuyuan Private HospitalYiwu CityChina
| | - Bin Chen
- Department of PharmacyYiwu Fuyuan Private HospitalYiwu CityChina
| | - Tao Gao
- Department of Respiratory MedicineYiwu Fuyuan Private HospitalYiwu CityChina
| | - Zhenglong Wang
- Department of Respiratory MedicineYiwu Fuyuan Private HospitalYiwu CityChina
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Fu C, Duan S, Zhou X, Meng Y, Chen X. Overexpression of COL11A1 confers tamoxifen resistance in breast cancer. NPJ Breast Cancer 2024; 10:38. [PMID: 38806505 PMCID: PMC11133424 DOI: 10.1038/s41523-024-00645-3] [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: 12/26/2023] [Accepted: 05/16/2024] [Indexed: 05/30/2024] Open
Abstract
Breast cancer is the most commonly diagnosed malignancy and benefits from endocrine agents such as tamoxifen. However, the development of drug resistance in cancerous cells often leads to recurrence, thus limiting the therapeutic benefit. Identification of potential biomarkers that can predict response to tamoxifen and recognize patients who will clinically benefit from this therapy is urgently needed. In this study, we report that high collagen type XI alpha 1 (COL11A1) expression was associated with poor therapeutic response and prognosis in breast cancer patients treated with tamoxifen. To confirm the role of COL11A1 in the development of tamoxifen resistance, we established MCF-7/COL11A1 and T47D/COL11A1 cell lines, which stably expressed COL11A1. Compared with parental MCF-7 and T47D, MCF-7/COL11A1 and T47D/COL11A1 cells were more resistant to 4-OHT-induced growth inhibition. Moreover, the level of COL11A1 expression was upregulated in tamoxifen-resistant MCF-7/TamR and T47D/TamR cell lines, and depletion of COL11A1 markedly sensitized the cells to 4-OHT in vitro and in vivo. Interestingly, the level of estrogen receptor α (ERα) expression was elevated, probably due to the increased COL11A1 in TamR cells. In addition, knockdown of COL11A1 decreased the expression of ERα and its downstream target genes. Overall, our findings suggest that overexpressed COL11A1 contributes to tamoxifen resistance, and targeting COL11A1 holds great promise for reversing endocrine resistance.
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Affiliation(s)
- Chengxiao Fu
- Cancer Research Institute, the First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China
- Department of Pharmacy, the First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Shan Duan
- Department of Pulmonary and Critical Care Medicine, the First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Xiaoming Zhou
- Institute of Drug Clinical Trial, the First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Yingcai Meng
- Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xisha Chen
- Cancer Research Institute, the First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China.
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CircRNA Uxs1/miR-335-5p/PGF axis regulates choroidal neovascularization via the mTOR/p70 S6k pathway. Transl Res 2023; 256:41-55. [PMID: 36690073 DOI: 10.1016/j.trsl.2023.01.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 12/17/2022] [Accepted: 01/03/2023] [Indexed: 01/21/2023]
Abstract
Age-related macular degeneration (AMD) is one of the leading causes of irreversible blindness in the elderly population. Neovascular AMD is the late stage, characterized by choroidal neovascularization (CNV). Non-coding RNAs have been implicated in CNV; however, the role of circular RNAs (circRNAs) has not yet been elucidated. Herein, we comprehensively investigated circRNA profiles in laser-induced CNV mouse models and patient specimens. A novel circRNA, circRNA Uxs1, was identified, and its function in CNV regulation was investigated in the present study. CircRNA Uxs1 was consistently upregulated in CNV patient specimens and CNV mouse models. Knockdown of circRNA Uxs1 interrupted the tube formation, migration, and proliferation of endothelial cells in vitro. Silencing circRNA Uxs1 in vivo alleviated neovascularization formation, as shown by the decreased size of laser spots. Mechanistically, circRNA Uxs1 functioned by binding to miR-335-5p, which further upregulated the expression of placental growth factor (PGF) gene and activated the mammalian target of rapamycin/p70 S6 Kinase (mTOR/p70 S6k) pathway. By subretinal injections of adeno-associated virus (AAV), we demonstrated the anti-angiogenic function of circRNA Uxs1 knockdown in vivo. In conclusion, circRNA Uxs1 promoted CNV by sponging miR-335-5p, which stimulated PGF expression and subsequently activated the mTOR/p70 S6k pathway. Therefore, circRNA Uxs1 may serve as a promising therapeutic target for CNV.
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Alotaibi A, Gadekar VP, Gundla PS, Mandarthi S, Ravi S, Mallya D, Tungekar A, Lavanya BV, Bhagavath AK, Cordero MW, Pitkaniemi J, Seetharam RN, Bepari A, Hebbar P. A comprehensive analysis of mRNA expression profiles of Esophageal Squamous Cell Carcinoma reveals downregulation of Desmoglein 1 and crucial genomic targets. Cancer Biomark 2023; 38:465-487. [PMID: 38073377 DOI: 10.3233/cbm-230145] [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] [Indexed: 12/26/2023]
Abstract
AIM Esophageal Squamous Cell Carcinoma (ESCC) is a histological subtype of esophageal cancer that begins in the squamous cells in the esophagus. In only 19% of the ESCC-diagnosed patients, a five-year survival rate has been seen. This necessitates the identification of high-confidence biomarkers for early diagnosis, prognosis, and potential therapeutic targets for the mitigation of ESCC. METHOD We performed a meta-analysis of 10 mRNA datasets and identified consistently perturbed genes across the studies. Then, integrated with ESCC ATLAS to segregate 'core' genes to identify consequences of primary gene perturbation events leading to gene-gene interactions and dysregulated molecular signaling pathways. Further, by integrating with toxicogenomics data, inferences were drawn for gene interaction with environmental exposures, trace elements, chemical carcinogens, and drug chemicals. We also deduce the clinical outcomes of candidate genes based on survival analysis using the ESCC related dataset in The Cancer Genome Atlas. RESULT We identified 237 known and 18 novel perturbed candidate genes. Desmoglein 1 (DSG1) is one such gene that we found significantly downregulated (Fold Change =-1.89, p-value = 8.2e-06) in ESCC across six different datasets. Further, we identified 31 'core' genes (that either harbor genetic variants or are regulated by epigenetic modifications) and found regulating key biological pathways via adjoining genes in gene-gene interaction networks. Functional enrichment analysis showed dysregulated biological processes and pathways including "Extracellular matrix", "Collagen trimmer" and "HPV infection" are significantly overrepresented in our candidate genes. Based on the toxicogenomic inferences from Comparative Toxicogenomics Database we report the key genes that interacted with risk factors such as tobacco smoking, zinc, nitroso benzylmethylamine, and drug chemicals such as cisplatin, Fluorouracil, and Mitomycin in relation to ESCC. We also point to the STC2 gene that shows a high risk for mortality in ESCC patients. CONCLUSION We identified novel perturbed genes in relation to ESCC and explored their interaction network. DSG1 is one such gene, its association with microbiota and a clinical presentation seen commonly with ESCC hints that it is a good candidate for early diagnostic marker. Besides, in this study we highlight candidate genes and their molecular connections to risk factors, biological pathways, drug chemicals, and the survival probability of ESCC patients.
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Affiliation(s)
- Amal Alotaibi
- Basic Science Department, College of Medicine, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
- Basic Science Department, College of Medicine, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Veerendra P Gadekar
- Mbiomics LLC, Lewes DE, USA
- Basic Science Department, College of Medicine, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | | | | | | | | | | | | | - Ashok Kumar Bhagavath
- Department of Cellular and Molecular Biology, University of Texas Health Science Center, Tyler, Texas, TX, USA
| | - MaryAnne Wong Cordero
- Basic Science Department, College of Medicine, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Janne Pitkaniemi
- Finnish Cancer Registry, Helsinki, Finland
- Department of Public Health, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Raviraja N Seetharam
- Manipal Center for Biotherapeutics Research, Manipal Academy of Higher Education, Manipal, India
| | - Asmatanzeem Bepari
- Basic Science Department, College of Medicine, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Prashantha Hebbar
- Mbiomics LLC, Lewes DE, USA
- Manipal Center for Biotherapeutics Research, Manipal Academy of Higher Education, Manipal, India
- Meta Biosciences Pvt Ltd., Manipal - GOK Bioincubator, Advanced Research Center, Manipal, India
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Luo Q, Li J, Su X, Tan Q, Zhou F, Xie S. COL11A1 serves as a biomarker for poor prognosis and correlates with immune infiltration in breast cancer. Front Genet 2022; 13:935860. [PMID: 36160004 PMCID: PMC9500398 DOI: 10.3389/fgene.2022.935860] [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: 05/10/2022] [Accepted: 07/26/2022] [Indexed: 12/25/2022] Open
Abstract
Breast cancer is the malignant tumor with the highest incidence rate at present, and its incidence rate ranks first in the female population. COL11A1 is an important component of collagen XI and is considered to play an important role in a variety of connective tissue diseases. Recent studies have shown that COL11A1 is associated with the occurrence and development of many kinds of malignant tumors. However, its prognostic value in breast cancer and its correlation with immune cell infiltration in tumor tissue are not clear. In this paper, we reveal the prognostic value of COL11A1 in breast cancer and its tumor immune-related function through in-depth bioinformatics analysis. The expression of COL11A1 is abnormally upregulated in breast cancer and is significantly related to the poor prognosis of breast cancer. In the analysis of the clinical characteristics of the patients, we found that the expression level of COLL11A1 was closely related to lymph node metastasis, PAM50 (Prediction Analysis of Microarray 50) expression, clinical stage and so on. Gene Ontology (GO) and Kyoto Encyclopedia of Gene and Genome (KEGG) all suggest that COL11A1 is related to tumor immunity. Further study found that the COL11A1 expression was significantly correlated with the degree of immune infiltration and the expression of a variety of immune cell markers in tumor tissue. More importantly, COL11A1 can affect the prognosis of breast cancer patients by participating in the regulation of tumor immune infiltration. Therefore, we believe that COL11A1 is a very potential target for diagnosis and treatment of breast cancer.
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Affiliation(s)
- Qi Luo
- Department of Academician (expert) Workstation, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
- Biological Targeting Laboratory of Breast Cancer, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
- Department of Outpatient, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
| | - Jinsui Li
- Department of Academician (expert) Workstation, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
- Biological Targeting Laboratory of Breast Cancer, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
- Department of Thyroid and Breast Surgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
| | - Xiaohan Su
- Department of Academician (expert) Workstation, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
- Biological Targeting Laboratory of Breast Cancer, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
- Department of Thyroid and Breast Surgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
| | - Qiao Tan
- Department of Academician (expert) Workstation, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
- Biological Targeting Laboratory of Breast Cancer, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
- Department of Thyroid and Breast Surgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
| | - Fangfang Zhou
- Department of Academician (expert) Workstation, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
- Biological Targeting Laboratory of Breast Cancer, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
- Department of Anatomy, North Sichuan Medical College, Nanchong, Sichuan, China
| | - Shaoli Xie
- Department of Academician (expert) Workstation, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
- Biological Targeting Laboratory of Breast Cancer, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
- Department of Thyroid and Breast Surgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
- *Correspondence: Shaoli Xie, , orcid.org/0000-0003-4512-2725
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Wu YH, Chou CY. Collagen XI Alpha 1 Chain, a Novel Therapeutic Target for Cancer Treatment. Front Oncol 2022; 12:925165. [PMID: 35847935 PMCID: PMC9277861 DOI: 10.3389/fonc.2022.925165] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 05/31/2022] [Indexed: 01/13/2023] Open
Abstract
The extracellular matrix (ECM) plays an important role in the progression of cancer. Collagen is the most abundant component in ECM, and is involved in the biological formation of cancer. Although type XI collagen is a minor fibrillar collagen, collagen XI alpha 1 chain (COL11A1) expression has been found to be upregulated in a variety of human cancers including colorectal, esophagus, glioma, gastric, head and neck, lung, ovarian, pancreatic, salivary gland, and renal cancers. High levels of COL11A1 usually predict poor prognosis, owing to its association with angiogenesis, invasion, and drug resistance in cancer. However, little is known about the specific mechanism through which COL11A1 regulates tumor progression. Here, we have organized and summarized recent developments regarding the interactions between COL11A1 and intracellular signaling pathways and selected therapeutic agents targeting COL11A1, as these indicate its potential as a target for treatment of cancers, especially epithelial ovarian cancer.
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Affiliation(s)
- Yi-Hui Wu
- Department of Medical Research, Chi Mei Medical Center, Tainan, Taiwan.,Department of Nursing, Min-Hwei Junior College of Health Care Management, Tainan, Taiwan
| | - Cheng-Yang Chou
- Department of Obstetrics and Gynecology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
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