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Song H, Adu-Amankwaah J, Zhao Q, Yang D, Liu K, Bushi A, Zhao J, Yuan J, Tan R. Decoding long non‑coding RNAs: Friends and foes in cancer development (Review). Int J Oncol 2024; 64:61. [PMID: 38695241 PMCID: PMC11095623 DOI: 10.3892/ijo.2024.5649] [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: 11/03/2023] [Accepted: 04/02/2024] [Indexed: 05/12/2024] Open
Abstract
Cancer remains a formidable adversary, challenging medical advancements with its dismal prognosis, low cure rates and high mortality rates. Within this intricate landscape, long non‑coding RNAs (lncRNAs) emerge as pivotal players, orchestrating proliferation and migration of cancer cells. Harnessing the potential of lncRNAs as therapeutic targets and prognostic markers holds immense promise. The present comprehensive review delved into the molecular mechanisms underlying the involvement of lncRNAs in the onset and progression of the top five types of cancer. By meticulously examining lncRNAs across diverse types of cancer, it also uncovered their distinctive roles, highlighting their exclusive oncogenic effects or tumor suppressor properties. Notably, certain lncRNAs demonstrate diverse functions across different cancers, confounding the conventional understanding of their roles. Furthermore, the present study identified lncRNAs exhibiting aberrant expression patterns in numerous types of cancer, presenting them as potential indicators for cancer screening and diagnosis. Conversely, a subset of lncRNAs manifests tissue‑specific expression, hinting at their specialized nature and untapped significance in diagnosing and treating specific types of cancer. The present comprehensive review not only shed light on the intricate network of lncRNAs but also paved the way for further research and clinical applications. The unraveled molecular mechanisms offer a promising avenue for targeted therapeutics and personalized medicine, combating cancer proliferation, invasion and metastasis.
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Affiliation(s)
- Hequn Song
- First Clinical Medical School, Xuzhou Medical University, Xuzhou, Jiangsu 221004, P.R. China
| | - Joseph Adu-Amankwaah
- Department of Physiology, Basic Medical School, Xuzhou Medical University, Xuzhou, Jiangsu 221004, P.R. China
| | - Qizhong Zhao
- Department of Emergency, The First Hospital of China Medical University, Shenyang, Liaoning 110122, P.R. China
| | - Dongqi Yang
- School of Life Science and Xuzhou Medical University, Xuzhou, Jiangsu 221004, P.R. China
| | - Kuntao Liu
- School of Life Science and Xuzhou Medical University, Xuzhou, Jiangsu 221004, P.R. China
| | - Aisha Bushi
- School of International Education, Xuzhou Medical University, Xuzhou, Jiangsu 221004, P.R. China
| | - Jinming Zhao
- Department of Pathology, College of Basic Medical Sciences, China Medical University, Shenyang, Liaoning 110122, P.R. China
- Department of Pathology, The First Hospital of China Medical University, Shenyang, Liaoning 110122, P.R. China
| | - Jinxiang Yuan
- Lin He Academician Workstation of New Medicine and Clinical Translation, Jining Medical University, Jining, Shandong 272067, P.R. China
| | - Rubin Tan
- Department of Physiology, Basic Medical School, Xuzhou Medical University, Xuzhou, Jiangsu 221004, P.R. China
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González-Sánchez GD, Granados-López AJ, López-Hernández Y, Robles MJG, López JA. miRNAs as Interconnectors between Obesity and Cancer. Noncoding RNA 2024; 10:24. [PMID: 38668382 PMCID: PMC11055034 DOI: 10.3390/ncrna10020024] [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: 12/18/2023] [Revised: 03/21/2024] [Accepted: 04/04/2024] [Indexed: 04/29/2024] Open
Abstract
Obesity and cancer are a concern of global interest. It is proven that obesity may trigger the development or progression of some types of cancer; however, the connection by non-coding RNAs has not been totally explored. In the present review, we discuss miRNAs and lncRNAs dysregulation involved in obesity and some cancers, shedding light on how these conditions may exacerbate one another through the dysregulation of ncRNAs. lncRNAs have been reported as regulating microRNAs. An in silico investigation of lncRNA and miRNA interplay is presented. Our investigation revealed 44 upregulated and 49 downregulated lncRNAs in obesity and cancer, respectively. miR-375, miR-494-3p, miR-1908, and miR-196 were found interacting with 1, 4, 4 and 4 lncRNAs, respectively, which are involved in PPARγ cell signaling regulation. Additionally, miR-130 was found to be downregulated in obesity and reported as modulating 5 lncRNAs controlling PPARγ cell signaling. Similarly, miR-128-3p and miR-143 were found to be downregulated in obesity and cancer, interacting with 5 and 4 lncRNAs, respectively, associated with MAPK cell signaling modulation. The delicate balance between miRNA and lncRNA expression emerges as a critical determinant in the development of obesity-associated cancers, presenting these molecules as promising biomarkers. However, additional and deeper studies are needed to reach solid conclusions about obesity and cancer connection by ncRNAs.
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Affiliation(s)
- Grecia Denisse González-Sánchez
- Doctorate in Biosciences, University Center of Los Altos, University of Guadalajara, Tepatitlán de Morelos C.P. 47620, Mexico;
| | - Angelica Judith Granados-López
- Laboratory of microRNAs and Cancer, Academic Unit of Biological Sciences, Autonomous University of Zacatecas “Francisco García Salinas”, Zacatecas C.P. 98066, Mexico;
| | - Yamilé López-Hernández
- Laboratory of Proteomics and Metabolomics, Cátedras-CONACYT, Academic Unit of Biological Sciences, Autonomous University of Zacatecas “Francisco García Salinas”, Zacatecas C.P. 98066, Mexico;
| | - Mayra Judith García Robles
- Biotechnology Department of the Polytechnic, University of Zacatecas, Fresnillo, Zacatecas C.P. 99059, Mexico
| | - Jesús Adrián López
- Laboratory of microRNAs and Cancer, Academic Unit of Biological Sciences, Autonomous University of Zacatecas “Francisco García Salinas”, Zacatecas C.P. 98066, Mexico;
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Wu Y, Mou J, Liu Y, Zheng W. Association of LncRNA PCBP1-AS1 with cancer occurrence and development: A review. Medicine (Baltimore) 2023; 102:e35631. [PMID: 37904442 PMCID: PMC10615425 DOI: 10.1097/md.0000000000035631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 09/22/2023] [Indexed: 11/01/2023] Open
Abstract
Long-stranded noncoding RNAs (LncRNAs) are noncoding RNAs >200 nucleotides in length. Polycytidine binding protein 1 antisense LncRNA is abbreviated as LncRNA polycytosine binding protein 1 antisense1 (PCBP1-AS1). Since studies in recent years have revealed the importance of PCBP1-AS1 in human genetic analysis, it is an important member of the LncRNA family. Genetically engineered group analysis of PCBP1-AS1 regulates the progression of cancer in biology. Therefore, it may be an important RNA in the regulation of human cancer. This article summarizes the molecular mechanism and clinical role of PCBP1-AS1 in various tumor types. Taking "PCBP1-AS1" and "cancer" as keywords, this paper analyzed the relationship between PCBP1-AS1 and various tumors by searching PubMed and Geen Medical, and summarized the related regulatory mechanism of PCBP1-AS1. PCBP1-AS1 is a valuable tumor-associated LncRNA that plays different biological roles in different cancers. Overall, it can both promote and inhibit the development of cancer. For example, abnormally high expression in castration-resitant prostate cancer, hepatocellular carcinoma, cervical cancer, glioma, and colorectal cancer promotes the proliferation and progression of these cancers; in contrast, PCBP1-AS1 inhibits cancer proliferation, metastasis, invasion, and recurrence when highly expressed in vulvar squamous cell carcinoma, Hodgkin lymphoma, and lung adenocarcinoma. PCBP1-AS1 regulates the development of multiple tumors, and the specific mechanism needs to be further investigated, which may become a new tumor marker and potential therapeutic target.
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Affiliation(s)
- Yanping Wu
- Department of Gynecology and Obstetrics, The First college of China Medical Science, China Three Gorges University/Yichang Central People’s Hospital, Yichang, Hubei, China
| | - Jie Mou
- Department of Gynecology and Obstetrics, The First college of China Medical Science, China Three Gorges University/Yichang Central People’s Hospital, Yichang, Hubei, China
| | - Yuling Liu
- Department of Gynecology and Obstetrics, The First college of China Medical Science, China Three Gorges University/Yichang Central People’s Hospital, Yichang, Hubei, China
| | - Wenfei Zheng
- Department of Gynecology and Obstetrics, The First college of China Medical Science, China Three Gorges University/Yichang Central People’s Hospital, Yichang, Hubei, China
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Salamini-Montemurri M, Lamas-Maceiras M, Lorenzo-Catoira L, Vizoso-Vázquez Á, Barreiro-Alonso A, Rodríguez-Belmonte E, Quindós-Varela M, Cerdán ME. Identification of lncRNAs Deregulated in Epithelial Ovarian Cancer Based on a Gene Expression Profiling Meta-Analysis. Int J Mol Sci 2023; 24:10798. [PMID: 37445988 PMCID: PMC10341812 DOI: 10.3390/ijms241310798] [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: 05/15/2023] [Revised: 06/19/2023] [Accepted: 06/25/2023] [Indexed: 07/15/2023] Open
Abstract
Epithelial ovarian cancer (EOC) is one of the deadliest gynecological cancers worldwide, mainly because of its initially asymptomatic nature and consequently late diagnosis. Long non-coding RNAs (lncRNA) are non-coding transcripts of more than 200 nucleotides, whose deregulation is involved in pathologies such as EOC, and are therefore envisaged as future biomarkers. We present a meta-analysis of available gene expression profiling (microarray and RNA sequencing) studies from EOC patients to identify lncRNA genes with diagnostic and prognostic value. In this meta-analysis, we include 46 independent cohorts, along with available expression profiling data from EOC cell lines. Differential expression analyses were conducted to identify those lncRNAs that are deregulated in (i) EOC versus healthy ovary tissue, (ii) unfavorable versus more favorable prognosis, (iii) metastatic versus primary tumors, (iv) chemoresistant versus chemosensitive EOC, and (v) correlation to specific histological subtypes of EOC. From the results of this meta-analysis, we established a panel of lncRNAs that are highly correlated with EOC. The panel includes several lncRNAs that are already known and even functionally characterized in EOC, but also lncRNAs that have not been previously correlated with this cancer, and which are discussed in relation to their putative role in EOC and their potential use as clinically relevant tools.
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Affiliation(s)
- Martín Salamini-Montemurri
- Centro Interdisciplinar de Química e Bioloxía (CICA), As Carballeiras, s/n, Campus de Elviña, Universidade da Coruña, 15071 A Coruña, Spain
- Facultade de Ciencias, A Fraga, s/n, Campus de A Zapateira, Universidade da Coruña, 15071 A Coruña, Spain
- Instituto de Investigación Biomédica de A Coruña (INIBIC), As Xubias de Arriba 84, 15006 A Coruña, Spain
| | - Mónica Lamas-Maceiras
- Centro Interdisciplinar de Química e Bioloxía (CICA), As Carballeiras, s/n, Campus de Elviña, Universidade da Coruña, 15071 A Coruña, Spain
- Facultade de Ciencias, A Fraga, s/n, Campus de A Zapateira, Universidade da Coruña, 15071 A Coruña, Spain
- Instituto de Investigación Biomédica de A Coruña (INIBIC), As Xubias de Arriba 84, 15006 A Coruña, Spain
| | - Lidia Lorenzo-Catoira
- Centro Interdisciplinar de Química e Bioloxía (CICA), As Carballeiras, s/n, Campus de Elviña, Universidade da Coruña, 15071 A Coruña, Spain
- Facultade de Ciencias, A Fraga, s/n, Campus de A Zapateira, Universidade da Coruña, 15071 A Coruña, Spain
- Instituto de Investigación Biomédica de A Coruña (INIBIC), As Xubias de Arriba 84, 15006 A Coruña, Spain
| | - Ángel Vizoso-Vázquez
- Centro Interdisciplinar de Química e Bioloxía (CICA), As Carballeiras, s/n, Campus de Elviña, Universidade da Coruña, 15071 A Coruña, Spain
- Facultade de Ciencias, A Fraga, s/n, Campus de A Zapateira, Universidade da Coruña, 15071 A Coruña, Spain
- Instituto de Investigación Biomédica de A Coruña (INIBIC), As Xubias de Arriba 84, 15006 A Coruña, Spain
| | - Aida Barreiro-Alonso
- Centro Interdisciplinar de Química e Bioloxía (CICA), As Carballeiras, s/n, Campus de Elviña, Universidade da Coruña, 15071 A Coruña, Spain
- Facultade de Ciencias, A Fraga, s/n, Campus de A Zapateira, Universidade da Coruña, 15071 A Coruña, Spain
- Instituto de Investigación Biomédica de A Coruña (INIBIC), As Xubias de Arriba 84, 15006 A Coruña, Spain
| | - Esther Rodríguez-Belmonte
- Centro Interdisciplinar de Química e Bioloxía (CICA), As Carballeiras, s/n, Campus de Elviña, Universidade da Coruña, 15071 A Coruña, Spain
- Facultade de Ciencias, A Fraga, s/n, Campus de A Zapateira, Universidade da Coruña, 15071 A Coruña, Spain
- Instituto de Investigación Biomédica de A Coruña (INIBIC), As Xubias de Arriba 84, 15006 A Coruña, Spain
| | - María Quindós-Varela
- Instituto de Investigación Biomédica de A Coruña (INIBIC), As Xubias de Arriba 84, 15006 A Coruña, Spain
- Complexo Hospitalario Universitario de A Coruña (CHUAC), Servizo Galego de Saúde (SERGAS), 15006 A Coruña, Spain
| | - M Esperanza Cerdán
- Centro Interdisciplinar de Química e Bioloxía (CICA), As Carballeiras, s/n, Campus de Elviña, Universidade da Coruña, 15071 A Coruña, Spain
- Facultade de Ciencias, A Fraga, s/n, Campus de A Zapateira, Universidade da Coruña, 15071 A Coruña, Spain
- Instituto de Investigación Biomédica de A Coruña (INIBIC), As Xubias de Arriba 84, 15006 A Coruña, Spain
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Liu YQ, Liu C, Bai Y, Gao J. LncRNA AATBC indicates development and facilitates cell growth and metastasis of cervical cancer as a sponge of miR-1245b-5p. Kaohsiung J Med Sci 2023; 39:115-123. [PMID: 36420764 DOI: 10.1002/kjm2.12628] [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: 07/21/2022] [Revised: 10/20/2022] [Accepted: 10/21/2022] [Indexed: 11/26/2022] Open
Abstract
With the increasing incidence and mortality rate, cervical cancer has been considered one of the most frequent malignant tumors in females. Exploration of tumor progression-related biomarkers could facilitate the identification of novel and targeted therapy strategies. To assess the significance of lncRNA AATBC (AATBC) and its potential regulatory mechanism in cervical cancer, and to identify a potential biomarker, this study enrolled 123 patients with cervical cancer. Paired tissue samples were collected. The expression levels of AATBC and miR-1245b-5p were analyzed by RT-qPCR and their significance in the development and prognosis of cervical cancer was evaluated using chi-square and Cox analyses. In vitro, the regulatory effect of AATBC on the cellular processes of cervical cancer was estimated by CCK8 and Transwell assay. The interaction between ATTBC and miR-1245b-5p was assessed by luciferase reporter assay. Significant upregulation of AATBC and reduced miR-1245b-5p level in cervical cancer were observed, which showed a negative correlation between their expression levels. Close relationships of AATBC and miR-1245b-5p with the FIGO stage and lymph node metastasis were revealed. AATBC showed a significant prognostic value and miR-1245b-5p was found to mediate the tumor inhibitory effect of AATBC knockdown, which is speculated to be the underlying molecular mechanism of AATBC in cervical cancer development. Upregulation of AATBC indicted the malignant development and adverse prognosis of cervical cancer. AATBC served as a tumor promoter of cervical cancer by modulating miR-1245b-5p.
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Affiliation(s)
- Ying-Qiao Liu
- Department of Obstetrics and Gynecology, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Chen Liu
- Department of Obstetrics and Gynecology, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Yang Bai
- Department of Obstetrics and Gynecology, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Jie Gao
- Department of Obstetrics and Gynecology, Beijing Luhe Hospital, Capital Medical University, Beijing, China
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6
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Arip M, Tan LF, Jayaraj R, Abdullah M, Rajagopal M, Selvaraja M. Exploration of biomarkers for the diagnosis, treatment and prognosis of cervical cancer: a review. Discov Oncol 2022; 13:91. [PMID: 36152065 PMCID: PMC9509511 DOI: 10.1007/s12672-022-00551-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 06/16/2022] [Indexed: 12/19/2022] Open
Abstract
As the fourth most diagnosed cancer, cervical cancer (CC) is one of the major causes of cancer-related mortality affecting females globally, particularly when diagnosed at advanced stage. Discoveries of CC biomarkers pave the road to precision medicine for better patient outcomes. High throughput omics technologies, characterized by big data production further accelerate the process. To date, various CC biomarkers have been discovered through the advancement in technologies. Despite, very few have successfully translated into clinical practice due to the paucity of validation through large scale clinical studies. While vast amounts of data are generated by the omics technologies, challenges arise in identifying the clinically relevant data for translational research as analyses of single-level omics approaches rarely provide causal relations. Integrative multi-omics approaches across different levels of cellular function enable better comprehension of the fundamental biology of CC by highlighting the interrelationships of the involved biomolecules and their function, aiding in identification of novel integrated biomarker profile for precision medicine. Establishment of a worldwide Early Detection Research Network (EDRN) system helps accelerating the pace of biomarker translation. To fill the research gap, we review the recent research progress on CC biomarker development from the application of high throughput omics technologies with sections covering genomics, transcriptomics, proteomics, and metabolomics.
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Affiliation(s)
- Masita Arip
- Allergy & Immunology Research Centre, Institute for Medical Research, National Institute of Health, Setia Alam, 40170 Shah Alam, Selangor, Malaysia
| | - Lee Fang Tan
- Department of Pharmaceutical Biology, Faculty of Pharmaceutical Sciences, UCSI University, 56000 Cheras, Kuala Lumpur, Malaysia.
| | - Rama Jayaraj
- Charles Darwin University, Darwin, NT, 0909, Australia
| | - Maha Abdullah
- Immunology Unit, Department of Pathology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Jalan Serdang, 43400, Serdang, Selangor, Malaysia
| | - Mogana Rajagopal
- Department of Pharmaceutical Biology, Faculty of Pharmaceutical Sciences, UCSI University, 56000 Cheras, Kuala Lumpur, Malaysia.
| | - Malarvili Selvaraja
- Department of Pharmaceutical Biology, Faculty of Pharmaceutical Sciences, UCSI University, 56000 Cheras, Kuala Lumpur, Malaysia.
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Persistent ferroptosis promotes cervical squamous intraepithelial lesion development and oncogenesis by regulating KRAS expression in patients with high risk-HPV infection. Cell Death Dis 2022; 8:201. [PMID: 35422066 PMCID: PMC9010439 DOI: 10.1038/s41420-022-01013-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 03/30/2022] [Accepted: 03/30/2022] [Indexed: 02/07/2023]
Abstract
Cervical squamous cell carcinoma (CSCC) is a type of female cancer that affects millions of families worldwide. Human papillomavirus (HPV) infection is the main reason for CSCC formation, and squamous intraepithelial lesions (SILs) induced by high-risk HPV (HR-HPV) infection are considered precancerous lesions. A previous study reported that HPV-infected cancer cells were able to counteract lipid peroxidation for survival. Recent research has reported that ferroptosis acts in an iron-dependent lipid peroxidation manner to kill cancer cells, and it is proposed as a new approach for female cancer therapy. Here, we investigated the role of ferroptosis throughout SIL development into CSCC. We found that ferroptosis occurred in SIL, but anti-ferroptosis emerged in CSCC. Our data further indicated that an antiferroptotic effect was formed in response to persistent ferroptosis and then promoted oncogenesis. Altogether, we provide novel insight into ferroptosis in cervical SIL development and suggest a potential therapeutic target for the treatment of CSCC.
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Mao Y, Wen C, Yang Z. Construction of a Co-Expression Network for lncRNAs and mRNAs Related to Urothelial Carcinoma of the Bladder Progression. Front Oncol 2022; 12:835074. [PMID: 35280820 PMCID: PMC8913900 DOI: 10.3389/fonc.2022.835074] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 01/24/2022] [Indexed: 02/01/2023] Open
Abstract
Carcinoma of urinary bladder is the most familiar cancer of the urinary tract, with the highest incidence in men. However, its prognosis and treatment have not improved significantly in the last 30 years. The main reason for this may be related to the alteration and regulation of genes. These alterations in genes that play a crucial role in cell cycle regulation may result in high-grade tumors and may alter drug sensitivity. Notably, the role of lncRNA in bladder cancer, especially the lncRNA-mRNA regulatory network, has not been fully elucidated. In this manuscript, we compared RNA sequencing (RNA-seq) data from 19 normal bladder tissues and 411 primary bladder tumor tissues using The Cancer Genome Atlas (TCGA) data bank, subjected differentially expressed mRNAs and lncRNAs to weighted gene co-expression network analysis, and screened out modules highly correlated with tumor progression. Subsequently, a lncRNA-mRNA co-expression network was built, and two key mRNAs were identified via COX regression analysis. Kaplan-Meier curve analysis revealed that the overall survival of sick people in the high-risk section was significantly shorter than those in the low-risk section. Therefore, this lncRNA-mRNA-based co-expression pattern may be used clinically to predict the prognosis of carcinoma of urinary bladder people. Our study not only provides a genetic target for carcinoma of urinary bladder therapy but also provides new ideas for people in the medical profession to discover the treatment of various tumors.
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Affiliation(s)
- Yeqing Mao
- Urology Department, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
- *Correspondence: Yeqing Mao,
| | - Chao Wen
- Medical College, Zhejiang University, Hangzhou, China
| | - Zitong Yang
- Medical College, Zhejiang University, Hangzhou, China
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Li Z, Pan C, Wang Z, Deng X, Zhu Q, Wu W, Chen L. LncRNA PCBP1-AS1 correlated with the functional states of cancer cells and inhibited lung adenocarcinoma metastasis by suppressing the EMT progression. Carcinogenesis 2021; 42:931-939. [PMID: 34107009 DOI: 10.1093/carcin/bgab047] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 06/02/2021] [Accepted: 06/04/2021] [Indexed: 12/29/2022] Open
Abstract
The development of single-cell RNA sequencing (scRNA-seq) provided us an unprecedented chance to identify novel oncogenes or tumor suppressors at single-cell resolution. Long non-coding RNAs (lncRNAs) related to the functional states of cancer cells might play vital roles in the progression of lung adenocarcinoma (LUAD). In this study, lncRNAs that were associated with the functional states of LUAD cells identified in scRNA-seq studies were screened based on the CancerSEA database. Differential gene expression analysis and survival analysis were performed in TCGA, GEO and our JSPH databases. Finally, transwell and tail vein metastasis assays were used to reveal the functions of our identified novel prognostic lncRNAs. A total of 849 lncRNAs were initially identified. Among them, 11 lncRNAs were found significantly associated with LUAD prognosis in the TCGA database. Two of them (PCBP1-AS1 and ZSCAN16-AS1) were further validated in independent GEO datasets. ScRNA-seq analysis showed that PCBP1-AS1 and ZSCAN16-AS1 were significantly negatively correlated with most of the functional states of LUAD cells, especially with metastasis. Functionally, PCBP1-AS1 was aberrantly downregulated in LUAD cells and tumor tissues. Knockdown of PCBP1-AS1 significantly promoted the migration and invasion of LUAD cells. Consistently, PCBP1-AS1 overexpression suppressed the metastasis of LUAD in vitro and in vivo. Besides, PCBP1-AS1 inhibition induced decreased E-cadherin expression and increased N-cadherin, Vimentin and Snail expression. In conclusion, PCBP1-AS1 could suppress the metastasis of LUAD by targeting the epithelial-mesenchymal transition pathway and might serve as a prognostic biomarker and a potential therapeutic target of LUAD.
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Affiliation(s)
- Zhihua Li
- Department of Thoracic Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029,China
| | - Cheng Pan
- Department of Thoracic Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029,China
| | - Zhibo Wang
- Department of Thoracic Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029,China
| | - Xiaheng Deng
- Department of Thoracic Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029,China
| | - Quan Zhu
- Department of Thoracic Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029,China
| | - Weibing Wu
- Department of Thoracic Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029,China
| | - Liang Chen
- Department of Thoracic Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029,China
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