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Suzuki M, Sakai S, Ota K, Bando Y, Uchida C, Niida H, Kitagawa M, Ohhata T. CCIVR2 facilitates comprehensive identification of both overlapping and non-overlapping antisense transcripts within specified regions. Sci Rep 2023; 13:14807. [PMID: 37684517 PMCID: PMC10491648 DOI: 10.1038/s41598-023-42044-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 09/04/2023] [Indexed: 09/10/2023] Open
Abstract
Pairs of sense and antisense transcriptions that are adjacent at their 5' and 3' regions are called divergent and convergent transcription, respectively. However, the structural properties of divergent/convergent transcription in different species or RNA biotypes are poorly characterized. Here, we developed CCIVR2, a program that facilitates identification of both overlapping and non-overlapping antisense transcripts produced from divergent/convergent transcription whose transcription start sites (TSS) or transcript end sites (TES) are located within a specified region. We used CCIVR2 to analyze antisense transcripts starting around the sense TSS (from divergent transcription) or ending around the sense TES (from convergent transcription) in 11 different species and found species- and RNA biotype-specific features of divergent/convergent transcription. Furthermore, we confirmed that CCIVR2 enables the identification of multiple sense/antisense transcript pairs from divergent transcription, including those with known functions in processes such as embryonic stem cell differentiation and TGFβ stimulation. CCIVR2 is therefore a valuable bioinformatics tool that facilitates the characterization of divergent/convergent transcription in different species and aids the identification of functional sense/antisense transcript pairs from divergent transcription in specified biological processes.
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Affiliation(s)
- Maya Suzuki
- Department of Molecular Biology, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, 431-3192, Japan
| | - Satoshi Sakai
- Department of Molecular Biology, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, 431-3192, Japan
| | - Kosuke Ota
- Department of Molecular Biology, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, 431-3192, Japan
| | - Yuki Bando
- Department of Organ and Tissue Anatomy, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, 431-3192, Japan
| | - Chiharu Uchida
- Advanced Research Facilities and Services, Preeminent Medical Photonics Education and Research Center, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, 431-3192, Japan
| | - Hiroyuki Niida
- Department of Molecular Biology, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, 431-3192, Japan
| | - Masatoshi Kitagawa
- Department of Molecular Biology, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, 431-3192, Japan
| | - Tatsuya Ohhata
- Department of Molecular Biology, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, 431-3192, Japan.
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Fan SJ, Cui Y, Li YH, Xu JC, Shen YY, Huang H, Hu ZC. LncRNA CASC9 activated by STAT3 promotes the invasion of breast cancer and the formation of lymphatic vessels by enhancing H3K27ac-activated SOX4. Kaohsiung J Med Sci 2022; 38:848-857. [PMID: 35860965 DOI: 10.1002/kjm2.12573] [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: 08/18/2021] [Revised: 04/26/2022] [Accepted: 06/13/2022] [Indexed: 11/10/2022] Open
Abstract
Numerous long noncoding RNAs (lncRNAs) are abnormally expressed in breast cancer (BC), but the underlying mechanisms remain large unknown. Here, we aimed to investigate the functions and mechanisms of lncRNA cancer susceptibility candidate 9 (CASC9) in BC. Western blotting and quantitative real-time PCR (qRT-PCR) were performed to assess gene and protein expression, respectively. The proliferative and metastatic abilities of BC cells were tested by cell counting kit-8 and transwell assays, respectively. The formation of lymphatic vessels was detected by tube formation assay. Chromatin immunoprecipitation (ChIP) and dual luciferase reporter assays were performed to verify molecular interactions. CASC9 was found to be highly expressed in BC tissues and cell lines, and ectopic overexpression was positively associated with tumor volume, TNM stage, and lymph node metastasis. In addition, CASC9 silencing significantly inhibited the proliferation and invasion of BC cells, as well as BC-associated invasion and formation of lymphatic vessels of human dermal lymphatic endothelial cells. Mechanical studies demonstrated that CASC9 could be transcriptionally activated by STAT3 and elevate SOX4 expression by enhancing the acetylation of its promoter region. Our results illustrated that STAT3-activated CASC9 served as a tumor-promoting gene involved in promoting BC invasion and BC-associated formation of lymphatic vessels by upregulating SOX4 through altering H3K27ac level. This finding elucidated a new underlying network of CASC9 in the metastasis of BC.
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Affiliation(s)
- Shan-Ji Fan
- The First Affiliated Hospital of University of South China, Hengyang, Hunan Province, China
| | - Ying Cui
- College of Chemistry and Materials Science, Hengyang Normal University, Hengyang, Hunan Province, China
| | - Yue-Hua Li
- The First Affiliated Hospital of University of South China, Hengyang, Hunan Province, China
| | - Jia-Chi Xu
- The First Affiliated Hospital of University of South China, Hengyang, Hunan Province, China
| | - Ying-Ying Shen
- The First Affiliated Hospital of University of South China, Hengyang, Hunan Province, China
| | - Hong Huang
- The First Affiliated Hospital of University of South China, Hengyang, Hunan Province, China
| | - Ze-Cheng Hu
- The First Affiliated Hospital of University of South China, Hengyang, Hunan Province, China
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Fan Y, Kao C, Yang F, Wang F, Yin G, Wang Y, He Y, Ji J, Liu L. Integrated Multi-Omics Analysis Model to Identify Biomarkers Associated With Prognosis of Breast Cancer. Front Oncol 2022; 12:899900. [PMID: 35761863 PMCID: PMC9232398 DOI: 10.3389/fonc.2022.899900] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Accepted: 05/12/2022] [Indexed: 12/13/2022] Open
Abstract
Background With the rapid development and wide application of high-throughput sequencing technology, biomedical research has entered the era of large-scale omics data. We aim to identify genes associated with breast cancer prognosis by integrating multi-omics data. Method Gene-gene interactions were taken into account, and we applied two differential network methods JDINAC and LGCDG to identify differential genes. The patients were divided into case and control groups according to their survival time. The TCGA and METABRIC database were used as the training and validation set respectively. Result In the TCGA dataset, C11orf1, OLA1, RPL31, SPDL1 and IL33 were identified to be associated with prognosis of breast cancer. In the METABRIC database, ZNF273, ZBTB37, TRIM52, TSGA10, ZNF727, TRAF2, TSPAN17, USP28 and ZNF519 were identified as hub genes. In addition, RPL31, TMEM163 and ZNF273 were screened out in both datasets. GO enrichment analysis shows that most of these hub genes were involved in zinc ion binding. Conclusion In this study, a total of 15 hub genes associated with long-term survival of breast cancer were identified, which can promote understanding of the molecular mechanism of breast cancer and provide new insight into clinical research and treatment.
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Affiliation(s)
- Yeye Fan
- School of Mathematics, Shandong University, Jinan, China
| | - Chunyu Kao
- Zhongtai Securities Institute for Financial Studies, Shandong University, Jinan, China
| | - Fu Yang
- Zhongtai Securities Institute for Financial Studies, Shandong University, Jinan, China
| | - Fei Wang
- Department of Breast Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Institute of Translational Medicine of Breast Disease Prevention and Treatment, Shandong University, Jinan, China
| | - Gengshen Yin
- Department of Breast Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Institute of Translational Medicine of Breast Disease Prevention and Treatment, Shandong University, Jinan, China
| | - Yongjiu Wang
- Department of Breast Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Institute of Translational Medicine of Breast Disease Prevention and Treatment, Shandong University, Jinan, China
| | - Yong He
- School of Mathematics, Shandong University, Jinan, China.,Zhongtai Securities Institute for Financial Studies, Shandong University, Jinan, China
| | - Jiadong Ji
- Zhongtai Securities Institute for Financial Studies, Shandong University, Jinan, China
| | - Liyuan Liu
- School of Mathematics, Shandong University, Jinan, China.,Department of Breast Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Institute of Translational Medicine of Breast Disease Prevention and Treatment, Shandong University, Jinan, China
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Zhang LP, Lin H, Wang AJ. Development and validation of a nomogram to predict survival for advanced male breast cancer. Andrologia 2022; 54:e14479. [PMID: 35618959 DOI: 10.1111/and.14479] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 05/04/2022] [Indexed: 12/27/2022] Open
Abstract
Male breast cancer is a rare disease. Many experiences of male breast cancer were derived of female breast cancer. However, there are huge differences between two groups. We conducted this study to find a reliable prognostic model for advanced male breast cancer. The cohort was selected from the Surveillance, Epidemiology, and End Results database. The enrolled patients were randomly divided into training and validation group. The univariate and multivariate analyses were used for prognostic assessment and a nomogram was built. Calibration curves and concordance index were compiled to determine predictive and discriminatory capacity. The time-dependent receiver operating curves and the decision curve analysis was used to verify the model's ability. Two hundred and eighty individuals were enrolled. The cumulative rates of 1-, 3- and 5-year overall survival (OS) rates were 98.6%, 72% and 57.9%. The C-indexes for OS were 0.835 (95%CI, 0.777-0.893) in the training group and 0.765 (95%CI, 0.668-0.862) in the validation group. The calibration curves confirmed the consistency of the nomogram both in the training and validation group. The time-dependent receiver operating curves and decision curve analysis demonstrated that the nomogram had better prediction capacity than TNM stage system for advanced male breast cancer. The nomogram we built was a reliable and solid predictive model.
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Affiliation(s)
- Li-Ping Zhang
- Department of Oncology, Guangdong Provincial Hospital of Integrated Traditional Chinese and Western Medicine, Foshan, People's Republic of China
| | - Hui Lin
- Department of Oncology, Guangdong Provincial Hospital of Integrated Traditional Chinese and Western Medicine, Foshan, People's Republic of China
| | - Ai-Jing Wang
- Department of Oncology, Guangdong Provincial Hospital of Integrated Traditional Chinese and Western Medicine, Foshan, People's Republic of China
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