1
|
Zou T, Gao Y, Qie M. Promotive actions of lncRNA EBLN3P involved in cervical cancer progression via interacting with miR-29c-3p and TAF15 to modify RCC2. Arch Biochem Biophys 2024; 755:109980. [PMID: 38555043 DOI: 10.1016/j.abb.2024.109980] [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: 01/03/2024] [Revised: 03/11/2024] [Accepted: 03/27/2024] [Indexed: 04/02/2024]
Abstract
BACKGROUND Cervical cancer is a common cancer that seriously affects women's health globally. The key roles of long non-coding RNAs (lncRNAs) in the onset and development of cervical cancer have attracted much attention. Our study aims to uncover the roles of lncRNA EBLN3P and miR-29c-3p and the mechanisms by which EBLN3P and miR-29c-3p regulate malignancy in cervical cancer. METHODS Tumor and adjacent normal tissues were collected from cervical cancer patients, and the expression of EBLN3P and miR-29c-3p were analyzed via RT-qPCR. The capacities of proliferation, migration, and invasion were assessed using CCK-8, wound healing and transwell assays. The interaction among EBLN3P, miR-29c-3p and TAF15 was determined by luciferase, RNA immunoprecipitation and RNA pull-down assays, respectively. A subcutaneous tumor xenograft mouse model was established to evaluate the functional role of EBLN3P in vivo. RESULTS The interaction and reciprocal negative regulation between EBLN3P and miR-29c-3p were uncovered in cervical cancer cells. Likewise, EBLN3P and miR-29c-3p expression patterns in tumor tissues presented a negative association. EBLN3P knockdown weakened cell proliferation, migration and invasion, but these effects were abrogated by miR-29c-3p depletion. Mechanistically, ALKBH5 might impaired EBLN3P stability to reduce its expression. EBLN3P functioned as a competing endogenous RNA (ceRNA) for miR-29c-3p to relieve its suppression of RCC2. Besides, EBLN3P enhanced RCC2 mRNA stability via interacting with TAF15. Furthermore, silencing of EBLN3P repressed the tumor growth in mice. CONCLUSION Altogether, lncRNA EBLN3P positively regulates RCC2 expression via competitively binding to miR-29c-3p and interacting with TAF15, thereby boosting proliferation, migration, and invasion of cervical cancer cells.
Collapse
Affiliation(s)
- Ting Zou
- Department of Gynecology and Obstetrics, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan Province, PR China; Department of Gynecology, Guizhou Provincial People's Hospital, Guiyang, 550002, Guizhou Province, PR China
| | - Yan Gao
- Department of Gynecology, Guizhou Provincial People's Hospital, Guiyang, 550002, Guizhou Province, PR China
| | - Mingrong Qie
- Department of Gynecology and Obstetrics, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan Province, PR China.
| |
Collapse
|
2
|
Wei H, Wu X, Huang L, Long C, Lu Q, Huang Z, Huang Y, Li W, Pu J. LncRNA MEG3 Reduces the Ratio of M2/M1 Macrophages Through the HuR/CCL5 Axis in Hepatocellular Carcinoma. J Hepatocell Carcinoma 2024; 11:543-562. [PMID: 38496248 PMCID: PMC10943271 DOI: 10.2147/jhc.s449090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Accepted: 02/07/2024] [Indexed: 03/19/2024] Open
Abstract
Objective Tumor-associated macrophages play a crucial role in the development of hepatocellular carcinoma (HCC). Our study aimed to investigate the relationship between long coding RNA (lncRNA) maternally expressed gene 3 (MEG3), RNA-binding protein human antigen R (HuR), and messenger RNA C-C motif chemokine 5 (CCL5) in the modulation of M1 and M2 macrophage polarization in HCC. Methods To induce M1 or M2 polarization, LPS/IFNγ- or IL4/IL13 were used to treat bone marrow derived macrophages (BMDMs). The localization of MEG3 in M1 and M2 macrophages was assessed using fluorescence in situ hybridization assay. Expression levels of MEG3, HuR, CCL5, M1, and M2 markers were measured by RT-qPCR or immunofluorescence staining. Flow cytometry was performed to determine the proportion of F4/80+CD206+ and F4/80+CD68+ cells. RNA pulldown assay was performed to detect the binding of lncRNA MEG3 and HuR. The impacts of HuR on CCL5 stability and activity of CCL5 promoter were evaluated using actinomycin D treatment and luciferase reporter assay. Cell migration, invasiveness, and angiogenesis were assessed using transwell migration and invasion assays and a tube formation assay. A mixture of Huh-7 cells and macrophages were injected into nude mice to explore the effect of MEG3 on tumorigenesis. Results MEG3 promoted M1-like polarization while dampening M2-like polarization of BMDMs. MEG3 bound to HuR in M1 and M2 macrophages. HuR downregulated CCL5 by inhibiting CCL5 transcription in macrophages. In addition, overexpression of MEG3 suppressed cell metastasis, invasion, and angiogenesis by obstructing macrophage M2 polarization. MEG3 inhibited tumorigenesis in HCC via promotion of M1-like polarization and inhibition of M2-like polarization. Rescue experiments showed that depletion of CCL5 in M2 macrophages reversed MEG3-induced suppressive effect on cell migration, invasion, and tube formation. Conclusion MEG3 suppresses HCC progression by promoting M1-like while inhibiting M2-like macrophage polarization via binding to HuR and thus upregulating CCL5.
Collapse
Affiliation(s)
- Huamei Wei
- Department of Pathology, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, Guangxi, People’s Republic of China
| | - Xianjian Wu
- Department of Hepatobiliary Surgery, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, Guangxi, People’s Republic of China
| | - Lizheng Huang
- Graduate College of Youjiang Medical University for Nationalities, Baise, Guangxi, People’s Republic of China
| | - Chen Long
- Graduate College of Youjiang Medical University for Nationalities, Baise, Guangxi, People’s Republic of China
| | - Qi Lu
- Graduate College of Youjiang Medical University for Nationalities, Baise, Guangxi, People’s Republic of China
| | - Zheng Huang
- Graduate College of Youjiang Medical University for Nationalities, Baise, Guangxi, People’s Republic of China
| | - Yanyan Huang
- Graduate College of Youjiang Medical University for Nationalities, Baise, Guangxi, People’s Republic of China
| | - Wenchuan Li
- Department of Hepatobiliary Surgery, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, Guangxi, People’s Republic of China
| | - Jian Pu
- Department of Hepatobiliary Surgery, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, Guangxi, People’s Republic of China
| |
Collapse
|
3
|
Arunkumar G. LncRNAs: the good, the bad, and the unknown. Biochem Cell Biol 2024; 102:9-27. [PMID: 37579511 DOI: 10.1139/bcb-2023-0155] [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: 08/16/2023] Open
Abstract
Long non-coding RNAs (lncRNAs) are significant contributors in maintaining genomic integrity through epigenetic regulation. LncRNAs can interact with chromatin-modifying complexes in both cis and trans pathways, drawing them to specific genomic loci and influencing gene expression via DNA methylation, histone modifications, and chromatin remodeling. They can also operate as building blocks to assemble different chromatin-modifying components, facilitating their interactions and gene regulatory functions. Deregulation of these molecules has been associated with various human diseases, including cancer, cardiovascular disease, and neurological disorders. Thus, lncRNAs are implicated as potential diagnostic indicators and therapeutic targets. This review discusses the current understanding of how lncRNAs mediate epigenetic control, genomic integrity, and their putative functions in disease pathogenesis.
Collapse
Affiliation(s)
- Ganesan Arunkumar
- The LncRNA, Epigenetics, and Genome Organization Laboratory, Department of Cell Biology and Physiology, School of Medicine, University of New Mexico, Albuquerque, NM, USA
| |
Collapse
|
4
|
Mathan SV, Singh R, Kim SH, Singh SV, Singh RP. Diallyl Trisulfide Induces ROS-Mediated Mitotic Arrest and Apoptosis and Inhibits HNSCC Tumor Growth and Cancer Stemness. Cancers (Basel) 2024; 16:378. [PMID: 38254868 PMCID: PMC10814060 DOI: 10.3390/cancers16020378] [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: 12/06/2023] [Accepted: 01/11/2024] [Indexed: 01/24/2024] Open
Abstract
Despite advances in therapeutic approaches, the five-year survival rate for head and neck squamous cell carcinoma (HNSCC) patients is still less than fifty percent. Research has indicated that the consumption of Allium vegetables or processed garlic containing diallyl trisulfide (DATS) can lower the risk of multiple types of cancer. Nevertheless, the effectiveness and underlying mechanisms of DATS against HNSCC have not been thoroughly explored until the current study. In this research, it was found that DATS notably curtailed the growth and viability of HNSCC cells. Additionally, DATS triggered a significant G2/M cell cycle arrest in these cells, accumulating cyclin B1, Cip1/p21, and Ser-10 phospho-histone H3-this was indicative of mitotic arrest attenuated by NAC pretreatment, suggesting the role of reactive oxygen species (ROS) induction. The production of ROS induced by DATS led to DNA damage and apoptosis, a process associated with elevated levels of cleaved caspase-3 and cleaved PARP, along with reduced XIAP. When HNSCC cells were exposed to pharmacological concentrations of DATS, it resulted in the suppression of cancer stem cell (CSC) populations, as indicated by a decrease in the CD133high/CD44high cell fraction, reduced aldehyde dehydrogenase 1 (ALDH1) activity, inhibited spheroid formation and downregulated SOX2 and Oct4 expression. Furthermore, the administration of DATS to tumor xenografts demonstrated its in vivo capacity to hinder CSCs. Further, DATS treatment inhibited the growth of UMSCC-22B head and neck cancer tumor xenograft in immunocompromised mice. Overall, DATS inhibited cell proliferation; induced cell cycle mitotic arrest and apoptosis involving DNA damage through ROS generation; reduced the CSC fraction and spheroid formation; and downregulated SOX2 and Oct4 expression. More importantly, DATS inhibited HNSCC tumor growth and CSC fraction in vivo. Thus, DATS could be a potential anticancer agent that can be used against head and neck cancer.
Collapse
Affiliation(s)
- Sivapar V. Mathan
- Cancer Biology Laboratory, School of Life Sciences, Jawaharlal Nehru University, New Delhi 110067, India; (S.V.M.); (R.S.)
- Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA; (S.-H.K.); (S.V.S.)
| | - Ragini Singh
- Cancer Biology Laboratory, School of Life Sciences, Jawaharlal Nehru University, New Delhi 110067, India; (S.V.M.); (R.S.)
| | - Su-Hyeong Kim
- Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA; (S.-H.K.); (S.V.S.)
- UPMC Hillman Cancer Center, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
| | - Shivendra V. Singh
- Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA; (S.-H.K.); (S.V.S.)
- UPMC Hillman Cancer Center, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
| | - Rana P. Singh
- Cancer Biology Laboratory, School of Life Sciences, Jawaharlal Nehru University, New Delhi 110067, India; (S.V.M.); (R.S.)
- Special Centre for Systems Medicine, Jawaharlal Nehru University, New Delhi 110067, India
| |
Collapse
|
5
|
Wang S, Zeng X, Gui P, Xu S, Li Z, Chen D. LncRNA EBLN3P Facilitates Osteosarcoma Metastasis by Enhancing Annexin A3 mRNA Stability and Recruiting HuR. Ann Surg Oncol 2023; 30:8690-8703. [PMID: 37598115 PMCID: PMC10625973 DOI: 10.1245/s10434-023-14032-y] [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: 04/10/2023] [Accepted: 07/09/2023] [Indexed: 08/21/2023]
Abstract
BACKGROUND Osteosarcoma (OS) represents a common type of bone cancer. Long non-coding RNAs (LncRNAs) have shown their potential in therapeutic modalities for OS. This study's purpose was to reveal the action of lncRNA EBLN3P on OS growth and metastasis and its mechanism. METHODS Expressions of EBLN3P/Hu antigen R (HuR)/Annexin A3 (ANXA3) were determined by RT-qPCR/Western blot. Proliferation/migration/invasion of OS cells were assessed via CCK-8/Transwell assays after interfering EBLN3P/ANXA3/HuR. The co-localization of EBLN3P/ANXA3/HuR cells was observed by FISH/immunofluorescence assays. Interplays among EBLN3P/ANXA3/HuR and the half-life period of ANXA3 were assessed by RNA immunoprecipitation/RNA pull-down/RNA stability experiment. The nude mouse xenograft model was established, followed by EBLN3P treatment to assess the function of EBLN3P on OS. RESULTS EBLN3P/ANXA3 was highly expressed in OS cells. Silencing EBLN3P or ANXA3 limited the proliferation/migration/invasion of OS cells. Mechanically, EBLN3P/ANXA3 can bind to HuR, and EBLN3P enhanced ANXA3 mRNA stability by recruiting HuR, thus facilitating OS cell growth. Upregulated HuR or ANXA3 counteracted the suppressive action of silencing EBLN3P on OS cells. In vivo experiments revealed facilitated tumor growth and metastasis in vivo fomented by EBLN3P through manipulation of HuR/ANXA3. CONCLUSIONS EBLN3P enhanced proliferative/migrative/invasive potentials of OS cells via increasing ANXA3 mRNA stability and protein level by recruiting HuR, which provided new potential therapeutic targets for OS clinical treatment. EBLN3P and ANXA3 might have potential roles in OS diagnosis, treatment, and prognosis. This study provided a theoretical reference for further clinical research in tumor surgery.
Collapse
Affiliation(s)
- Shengtao Wang
- Department of Joint Surgery and Sports Medicine, Nanxishan Hospital of Guangxi Zhuang Autonomous Region, Xiangshan District, Guilin, Guangxi, China
| | - Xinxin Zeng
- Department of Pain, Banan Hospital of Chongqing Medical University, Banan District, Chongqing City, China
| | - Peng Gui
- Department of Trauma orthopedics and hand surgery, Nanxishan Hospital of Guangxi Zhuang Autonomous Region, Xiangshan District, Guilin, Guangxi, China
| | - Shujuan Xu
- Department of Hematopathology, Affiliated Hospital of Guilin Medical University, Xiufeng District, Guilin, Guangxi, China
| | - Zhaoxu Li
- Department of Joint Surgery and Sports Medicine, Nanxishan Hospital of Guangxi Zhuang Autonomous Region, Xiangshan District, Guilin, Guangxi, China.
| | - Dongxu Chen
- Department of Joint Surgery and Sports Medicine, Nanxishan Hospital of Guangxi Zhuang Autonomous Region, Xiangshan District, Guilin, Guangxi, China.
| |
Collapse
|
6
|
Wang J, Xu J, Zheng J. A1BG-AS1 promotes adriamycin resistance of breast cancer by recruiting IGF2BP2 to upregulate ABCB1 in an m6A-dependent manner. Sci Rep 2023; 13:20730. [PMID: 38007504 PMCID: PMC10676358 DOI: 10.1038/s41598-023-47956-2] [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: 02/24/2023] [Accepted: 11/20/2023] [Indexed: 11/27/2023] Open
Abstract
Adriamycin (ADR) resistance is an obstacle for chemotherapy of breast cancer (BC). ATP binding cassette subfamily B member 1 (ABCB1) expression is indicated to be closely related to the drug resistance of cancer cells. The current work intended to explore the molecular mechanisms to regulate ABCB1 in BC cells with ADR resistance. We found that long noncoding RNA (lncRNA) A1BG antisense RNA 1 (A1BG-AS1) is upregulated in ADR resistant BC cell lines (MCF-7/ADR, MDA-MB-231/ADR). A1BG-AS1 knockdown enhanced the ADR sensitivity by suppressing the viability, proliferation potential and migration ability, and facilitating cell apoptosis in BC. Insulin-like growth factor 2 mRNA-binding protein 2 (IGF2BP2) is known to be an m6A reader to modulate the stability of mRNA transcripts in an m6A-dependent manner, which was a shared RNA binding protein (RBP) for A1BG-AS1 and ABCB1. The interaction of IGF2BP2 with A1BG-AS1 or ABCB1 was explored and verified using RNA pulldown and RNA immunoprecipitation (RIP) assays. ABCB1 mRNA and protein expression was positively regulated by A1BG-AS1 and IGF2BP2 in BC cells. ABCB1 mRNA expression was stabilized by A1BG-AS1 via recruiting IGF2BP2 in an m6A-dependent manner. Moreover, rescue assays demonstrated that A1BG-AS1 enhanced BC ADR resistance by positively modulating ABCB1. Xenograft mouse models were used to explore whether A1BG-AS1 affected the ADR resistance in BC in vivo. The findings indicated that A1BG-AS1 silencing inhibited tumor growth and alleviated ADR resistance in vivo. In conclusion, A1BG-AS1 enhances the ADR resistance of BC by recruiting IGF2BP2 to upregulate ABCB1 in an m6A-dependent manner.
Collapse
Affiliation(s)
- Jian Wang
- Department of General Surgery, Tianjin Fifth Central Hospital, No. 41 Tanggu Zhejiang Road, Binhai New Area, Tianjin, 300450, China.
| | - Jie Xu
- Department of General Surgery, Tianjin Fifth Central Hospital, No. 41 Tanggu Zhejiang Road, Binhai New Area, Tianjin, 300450, China
| | - Jie Zheng
- Department of Pathology, Tianjin Fifth Central Hospital, Tianjin, 300450, China
| |
Collapse
|
7
|
Zhang Z, Ye B, Lin Y, Liu W, Deng J, Ji W. LncRNA OTUD6B-AS1 overexpression promoted GPX4-mediated ferroptosis to suppress radioresistance in colorectal cancer. Clin Transl Oncol 2023; 25:3217-3229. [PMID: 37184781 DOI: 10.1007/s12094-023-03193-7] [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: 12/18/2022] [Accepted: 04/04/2023] [Indexed: 05/16/2023]
Abstract
BACKGROUND Radiotherapy is widely employed in colorectal cancer (CRC) treatment but is often compromised by developed radioresistance. This study explored the mechanism of long non-coding RNA ovarian tumor domain containing 6B-antisense RNA1 (lncRNA OTUD6B-AS1) in CRC radioresistance through tripartite motif 16 (TRIM16). METHODS CRC and non-cancerous tissues were collected and radioresistant CRC cells were established, with real-time quantitative polymerase chain reaction to determine gene expression in tissues and cells. Radioresistance was evaluated by cell counting kit-8 assay and immunofluorescence (γ-H2AX) and ferroptosis was tested by Western blot assay (ACSL4/GPX4) and assay kits (Fe2+/ROS/MDA/GSH). The association between ferroptosis and lncRNA OTUD6B-AS1-inhibited radioresistance was testified using ferroptosis inhibitor. The subcellular localization of lncRNA OTUD6B-AS1 was tested by the nuclear/cytoplasmic fractionation assay, with RNA immunoprecipitation assay to validate gene interactions. Rescue experiments were conducted to analyze the role of TRIM16 in CRC radioresistance. RESULTS LncRNA OTUD6B-AS1 and TRIM16 were poorly expressed (P < 0.01) in CRC tissues and cells and further decreased (P < 0.01) in radioresistant CRC cells. OTUD6B-AS1 overexpression decreased cell survival (P < 0.01), increased γ-H2AX levels (P < 0.01), and elevated ferroptosis and oxidative stress (P < 0.01) after X-ray radiation. Ferroptosis inhibitor attenuated radioresistance (P < 0.01) caused by lncRNA OTUD6B-AS1 overexpression. LncRNA OTUD6B-AS1 stabilized TRIM16 mRNA via binding to HuR. TRIM16 knockdown reduced ferroptosis and increased radioresistance (P < 0.05). CONCLUSION OTUD6B-AS1 overexpression stabilized TRIM16 via binding to HuR and increased GPX4-mediated ferroptosis, thus attenuating CRC radioresistance. Our study provided a new rationale for the treatment of CRC.
Collapse
Affiliation(s)
- Zilang Zhang
- Department of General Surgery, Jinling Hospital, the First School of Clinical Medicine, Southern Medical University, 305 Zhongshan East Road, Nanjing, 210002, Jiangsu, China
- Department of Anorectal Surgery, The First People's Hospital of Foshan, 81 Lingnan Avenue North, Foshan, 528000, Guangdong, China
| | - Baolong Ye
- Department of General Surgery, Jinling Hospital, the First School of Clinical Medicine, Southern Medical University, 305 Zhongshan East Road, Nanjing, 210002, Jiangsu, China
| | - Yiban Lin
- Department of Anorectal Surgery, The First People's Hospital of Foshan, 81 Lingnan Avenue North, Foshan, 528000, Guangdong, China
| | - Wenjun Liu
- Department of General Surgery, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, China
| | - Jianzhong Deng
- Department of Anorectal Surgery, The First People's Hospital of Foshan, 81 Lingnan Avenue North, Foshan, 528000, Guangdong, China.
| | - Wu Ji
- Department of General Surgery, Jinling Hospital, the First School of Clinical Medicine, Southern Medical University, 305 Zhongshan East Road, Nanjing, 210002, Jiangsu, China.
| |
Collapse
|
8
|
Zhao X, Su F, Guo Q, Tao X, Wang H, Wang H, Li Q, Zhang W. Preeclampsia-associated lncRNA FEZF1-AS1 regulates cell proliferation and apoptosis in placental trophoblast cells through the ELAVL1/NOC2L axis. Cell Div 2023; 18:17. [PMID: 37872600 PMCID: PMC10591422 DOI: 10.1186/s13008-023-00101-x] [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: 07/18/2023] [Accepted: 10/16/2023] [Indexed: 10/25/2023] Open
Abstract
BACKGROUND LncRNAs have been shown to be involved in and control the biological processes of multiple diseases, including preeclampsia (PE). The impairment of trophoblast cell proliferation is recognized as a significant anomaly contributing to the development of PE. LncRNA FEZF1-AS1 was found downregulated in placental tissues of PE patients. However, the precise regulatory mechanism of FEZF1-AS1 in placental trophoblast proliferation and apoptosis remains unclear. RESULTS In this study, we conducted an investigation into the expression levels of FEZF1-AS1 and NOC2L in placental tissues obtained from patients diagnosed with PE. Subsequently, we employed CCK-8 and EdU assays to quantify cell proliferation, while TUNEL staining and western blot for apoptosis-related protein detection to assess apoptosis. Furthermore, the interactions between FEZF1-AS1 and ELAVL1, as well as NOC2L and ELAVL1, were confirmed through the implementation of RIP and RNA pull-down assays. We found a downregulation of lncRNA FEZF1-AS1 and NOC2L in placental tissues of PE patients. Overexpression of FEZF1-AS1 or NOC2L resulted in increased cell proliferation and inhibition of apoptosis, whereas knockdown of FEZF1-AS1 or NOC2L had the opposite effect. In addition, lncRNA FEZF1-AS1 stabilized NOC2L mRNA expression by interacting with ELAVL1. Moreover, partial reversal of the effects of FEZF1-AS1 overexpression on cell proliferation and apoptosis was observed upon suppression of ELAVL1 or NOC2L. CONCLUSIONS PE related lncRNA FEZF1-AS1 could regulate apoptosis and proliferation of placental trophoblast cells through the ELAVL1/NOC2L axis.
Collapse
Affiliation(s)
- Xudong Zhao
- Department of Obstetrics, The Affiliated Taian City Central Hospital of Qingdao University, No.29, Longtan Road, Taian, 271000, Shandong, People's Republic of China.
| | - Fengyun Su
- Department of Pharmacy, The Second Affiliated Hospital Of Shandong First Medical University, Taian, 271000, Shandong, People's Republic of China
| | - Qing Guo
- Intensive Care Unit, The Affiliated Taian City Centeral Hospital of Qingdao University, Taian, 271000, Shandong, People's Republic of China
| | - Xiuhong Tao
- Department of Obstetrics, The Affiliated Taian City Central Hospital of Qingdao University, No.29, Longtan Road, Taian, 271000, Shandong, People's Republic of China
| | - Huifeng Wang
- Department of Ultrasound, The Affiliated Taian City Centeral Hospital of Qingdao University, Taian, 271000, Shandong, People's Republic of China
| | - Hongling Wang
- Department of Ultrasound, The Affiliated Taian City Centeral Hospital of Qingdao University, Taian, 271000, Shandong, People's Republic of China
| | - Qinwen Li
- Department of Obstetrics, The Affiliated Taian City Central Hospital of Qingdao University, No.29, Longtan Road, Taian, 271000, Shandong, People's Republic of China
| | - Wangmeng Zhang
- Department of Obstetrics, The Affiliated Taian City Central Hospital of Qingdao University, No.29, Longtan Road, Taian, 271000, Shandong, People's Republic of China
| |
Collapse
|
9
|
Hu K, Wang C, Xu Y, Li F, Han X, Song C, Liang M. Interaction of lncRNA Gm2044 and EEF2 promotes estradiol synthesis in ovarian follicular granulosa cells. J Ovarian Res 2023; 16:171. [PMID: 37612724 PMCID: PMC10464411 DOI: 10.1186/s13048-023-01232-z] [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: 08/29/2022] [Accepted: 07/07/2023] [Indexed: 08/25/2023] Open
Abstract
The functions and molecular mechanisms of long noncoding RNA (lncRNA) in reproduction have been widely studied at present. However, lncRNA regulating hormone synthesis in ovarian follicular granulosa cells has not been sufficiently studied. Our previous research demonstrated that lncRNA Gm2044 could promote estradiol synthesis in follicular granulosa cells. In this study, we identified 21 binding proteins of lncRNA Gm2044 in ovarian follicles using comprehensive identification of RNA-binding proteins by mass spectrometry (ChIRP-MS). RNA immunoprecipitation (RNA IP) and reverse transcription PCR (RT-PCR) confirmed that lncRNA Gm2044 can interact with eukaryotic translation elongation factor 2 (EEF2) protein. Furthermore, we constructed lncRNA Gm2044 knockout mice using the CRISPR/Cas9 method. Although the follicular development and fertility of female lncRNA Gm2044 knockout mice were not affected, the serum estradiol concentration in female lncRNA Gm2044 knockout mice significantly decreased. Western blotting and ELISA revealed that lncRNA Gm2044 may promote the binding of EEF2 to Nr5a1 mRNA and then enhance the Nr5a1 mRNA translation, and the upregulated NR5A1 protein can strengthen estradiol synthesis. To determine the potential signaling pathway of lncRNA Gm2044 regulating estradiol synthesis, transcriptome sequencing was performed for ovaries of adult lncRNA Gm2044 knockout mice, which identified 565 significant up-regulated genes and 303 significant down-regulated genes, which were then analyzed with Gene Ontology (GO) and the Kyoto Encyclopedia of Genes and Genomes (KEGG) and validated by molecular experiments. Understanding how lncRNA Gm2044/EEF2 protein regulates estradiol synthesis will help treat estrogen-related reproductive diseases.
Collapse
Affiliation(s)
- Ke Hu
- School of Life Science, Bengbu Medical College, Bengbu, China
| | - Chen Wang
- School of Life Science, Bengbu Medical College, Bengbu, China
| | - Yifan Xu
- School of Life Science, Bengbu Medical College, Bengbu, China
| | - Fan Li
- School of Laboratory Medicine, Bengbu Medical College, Bengbu, China
| | - Xuefeng Han
- School of Life Science, Bengbu Medical College, Bengbu, China
| | - Chuanwang Song
- School of Laboratory Medicine, Bengbu Medical College, Bengbu, China.
| | - Meng Liang
- School of Life Science, Bengbu Medical College, Bengbu, China.
| |
Collapse
|
10
|
Yang Q, Wang M, Xu J, Yu D, Li Y, Chen Y, Zhang X, Zhang J, Gu J, Zhang X. LINC02159 promotes non-small cell lung cancer progression via ALYREF/YAP1 signaling. Mol Cancer 2023; 22:122. [PMID: 37537569 PMCID: PMC10401734 DOI: 10.1186/s12943-023-01814-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 06/25/2023] [Indexed: 08/05/2023] Open
Abstract
Lung cancer is the leading cause of cancer-related deaths worldwide. Long non-coding RNAs (lncRNAs) have emerged as key regulators of cancer development and progression, and as promising biomarkers for the diagnosis and prognosis of cancer. In this study, we identified a new lncRNA (LINC02159) that was upregulated in the tumor tissues and serum of non-small cell lung cancer (NSCLC) patients. We demonstrated that knockdown of LINC02159 inhibited NSCLC cell proliferation, migration, and invasion, but induced cell apoptosis and cell cycle arrest in vitro and retarded tumor growth in vivo, while overexpression of LINC02159 led to the opposite effect. We discovered that LINC02159 was highly correlated with cancer growth and metastasis-related pathways by using transcriptomic analysis and that YAP1 was a potential target gene of LINC02159. Mechanistically, LINC02159 bound to the Aly/REF export factor (ALYREF) to enhance the stability of YAP1 messenger RNA (mRNA) via m5C modification, which led to the overexpression of YAP1 and the activation of the Hippo and β-catenin signaling pathways in NSCLC cells. Rescue experiments showed that LINC01259 promoted NSCLC progression in a YAP1- and ALYREF-dependent manner. In conclusion, LINC02159 plays an oncogenic role in NSCLC progression by regulating ALYREF/YAP1 signaling, and it has the potential to be utilized as a diagnostic marker and therapeutic target for NSCLC.
Collapse
Affiliation(s)
- Qiurong Yang
- Department of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, 212013, China
| | - Maoye Wang
- Department of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, 212013, China
| | - Jing Xu
- Department of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, 212013, China
| | - Dan Yu
- Department of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, 212013, China
| | - Yixin Li
- Department of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, 212013, China
| | - Yanke Chen
- Department of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, 212013, China
| | - Xiaoxin Zhang
- Department of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, 212013, China
| | - Jiahui Zhang
- Department of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, 212013, China
| | - Jianmei Gu
- Departmemt of Clinical Laboratory Medicine, Nantong Tumor Hospital/Affiliated Tumor Hospital of Nantong University, Nantong, 226300, China.
| | - Xu Zhang
- Department of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, 212013, China.
| |
Collapse
|
11
|
Cai C, Zhi Y, Xie C, Geng S, Sun F, Ji Z, Zhang P, Wang H, Tang J. Ursolic acid-downregulated long noncoding RNA ASMTL-AS1 inhibits renal cell carcinoma growth via binding to HuR and reducing vascular endothelial growth factor expression. J Biochem Mol Toxicol 2023; 37:e23389. [PMID: 37300450 DOI: 10.1002/jbt.23389] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 02/24/2023] [Accepted: 05/17/2023] [Indexed: 06/12/2023]
Abstract
It has been reported ursolic acid (UA), one of the naturally abundant pentacyclic triterpenes, possesses a wide range of biological activities including anti-inflammatory, anti-atherosclerotic, and anticancer properties. Renal cell carcinoma (RCC) is a severe malignancy due to its asymptomatically spreading ability. Our study aimed to investigate the role and molecular mechanism of UA in RCC. RCC cell proliferation, migration, invasion, and angiogenesis were assessed using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide, Transwell, and tube formation assays. Xenograft tumor models were established to confirm the role of UA and long noncoding RNA ASMTL antisense RNA 1 (ASMTL-AS1) in vivo. Expression levels of ASMTL-AS1 and vascular endothelial growth factor (VEGF) were measured using reverse transcriptase quantitative polymerase chain reaction and western blot analysis. The interaction probabilities of ASMTL-AS1 or VEGF with RNA-binding protein human antigen R (HuR) were verified by RNA immunoprecipitation experiment. The half-life period of messenger RNA (mRNA) was determined using actinomycin D. UA inhibited RCC cell growth in vivo and tumorigenesis in vitro. ASMTL-AS1 was highly expressed in RCC cell lines. Of note, UA downregulated ASMTL-AS1 expression, and overexpressed ASMTL-AS1 reversed the UA-induced suppression on RCC cell migration, invasion, and tube formation. Additionally, ASMTL-AS1 bound to HuR to maintain the stability of VEGF mRNA. Rescue experiments showed that the suppressed malignancy of RCC cells mediated by ASMTL-AS1 knockdown was counteracted by overexpression of VEGF. Moreover, silenced ASMTL-AS1 inhibited RCC tumor growth and metastasis in vivo. The obtained data suggest UA as a promising therapeutic agent to attenuate the development of RCC via regulation of the targeted molecules.
Collapse
Affiliation(s)
- Chengkuan Cai
- Department of Urology, The First People's Hospital of Lianyungang, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, Jiangsu, China
| | - Yunlai Zhi
- Department of Urology, The First People's Hospital of Lianyungang, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, Jiangsu, China
| | - Cheng Xie
- Department of Urology, The First People's Hospital of Lianyungang, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, Jiangsu, China
| | - Shen Geng
- Department of Urology, The First People's Hospital of Lianyungang, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, Jiangsu, China
| | - Fanghu Sun
- Department of Urology, The First People's Hospital of Lianyungang, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, Jiangsu, China
| | - Zhengshuai Ji
- Department of Urology, The First People's Hospital of Lianyungang, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, Jiangsu, China
| | - Pengcheng Zhang
- Department of Urology, The First People's Hospital of Lianyungang, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, Jiangsu, China
| | - Hui Wang
- Department of Urology, The First People's Hospital of Lianyungang, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, Jiangsu, China
| | - Jingyuan Tang
- Department of Urology, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| |
Collapse
|
12
|
Hu K, Huang MJ, Ling S, Li YX, Cao XY, Chen YF, Lei JM, Fu WZ, Tan BF. LncRNA CASC11 upregulation promotes HDAC4 to alleviate oxidized low-density lipoprotein-induced injury of cardiac microvascular endothelial cells. Kaohsiung J Med Sci 2023; 39:758-768. [PMID: 37096653 DOI: 10.1002/kjm2.12687] [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: 11/15/2022] [Revised: 02/15/2023] [Accepted: 03/14/2023] [Indexed: 04/26/2023] Open
Abstract
Long noncoding RNAs (LncRNAs) are essential to regulate the pathogenesis of coronary artery disease (CAD). This study was conducted to analyze the functionality of long noncoding RNA cancer susceptibility candidate 11 (lncRNA CASC11) in oxidized low-density lipoprotein (ox-LDL)-induced injury of cardiac microvascular endothelial cells (CMECs). CMECs were treated with ox-LDL to induce the CAD cell model. The cellular expression levels of CASC11 and histone deacetylase 4 (HDAC4) were determined by real-time quantitative polymerase chain reaction or Western blot assay. Cell absorbance, apoptosis, angiogenesis, and inflammation were evaluated by cell counting kit-8, flow cytometry, tube formation, and enzyme-linked immunosorbent assays. The subcellular localization of CASC11 was examined by the nuclear/cytoplasmic fractionation assay. The binding of human antigen R (HuR) to CASC11 and HDAC4 was analyzed by RNA immunoprecipitation. HDAC4 stability was determined after actinomycin D treatment. CASC11 was found to be decreased in the CAD cell model. CASC11 upregulation increased cell viability and angiogenesis and reduced apoptosis and inflammation. CASC11 bound to HuR and improved HDAC4 expression. HDAC4 downregulation counteracted the protective role of CASC11 overexpression in CMECs. In summary, CASC11 alleviated ox-LDL-induced injury of CMECs by binding to HuR and stabilizing HDAC4.
Collapse
Affiliation(s)
- Ke Hu
- Medical College, Hunan University of Medicine, Huaihua, China
| | - Min-Jiang Huang
- Medical College, Hunan University of Medicine, Huaihua, China
| | - Sha Ling
- Department of Cardiology, First Affiliated Hospital, Hunan University of Medicine, Huaihua, China
| | - Yu-Xian Li
- Medical College, Hunan University of Medicine, Huaihua, China
| | - Xiang-Yu Cao
- Medical College, Hunan University of Medicine, Huaihua, China
| | - Yue-Fu Chen
- Medical College, Hunan University of Medicine, Huaihua, China
| | - Jian-Ming Lei
- Department of Cardiology, First Affiliated Hospital, Hunan University of Medicine, Huaihua, China
| | - Wen-Zhe Fu
- Department of Cardiology, First Affiliated Hospital, Hunan University of Medicine, Huaihua, China
| | - Bi-Feng Tan
- Department of Cardiology, First Affiliated Hospital, Hunan University of Medicine, Huaihua, China
| |
Collapse
|
13
|
Li J, Pei M, Xiao W, Liu X, Hong L, Yu Z, Peng Y, Zhang J, Yang P, Lin J, Wu X, Lin Z, Tang W, Zhi F, Li G, Xiang L, Li A, Liu S, Chen Y, Wang J. The HOXD9-mediated PAXIP1-AS1 regulates gastric cancer progression through PABPC1/PAK1 modulation. Cell Death Dis 2023; 14:341. [PMID: 37225681 DOI: 10.1038/s41419-023-05862-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 05/06/2023] [Accepted: 05/15/2023] [Indexed: 05/26/2023]
Abstract
Long non-coding RNAs (lncRNAs) have been functionally characterised in various diseases. LncRNA PAX-interacting protein 1-antisense RNA 1 (PAXIP1-AS1) has reportedly been associated with cancer development. However, its role in gastric cancer (GC) remains poorly understood. Here, we showed that PAXIP1-AS1 was transcriptionally repressed by homeobox D9 (HOXD9) and was significantly downregulated in GC tissues and cells. Decreased expression of PAXIP1-AS1 was positively correlated with tumour progression, while PAXIP1-AS1 overexpression inhibited cell growth and metastasis both in vitro and in vivo. PAXIP1-AS1 overexpression significantly attenuated HOXD9-enhanced epithelial-to-mesenchymal transition (EMT), invasion and metastasis in GC cells. Poly(A)-binding protein cytoplasmic 1 (PABPC1), an RNA-binding protein, was found to enhance the stability of PAK1 mRNA, leading to EMT progress and GC metastasis. PAXIP1-AS1 was found to directly bind to and destabilise PABPC1, thereby regulating EMT and metastasis of GC cells. In summary, PAXIP1-AS1 suppressed metastasis, and the HOXD9/PAXIP1-AS1/PABPC1/PAK1 signalling axis may be involved in the progression of GC.
Collapse
Affiliation(s)
- Jiaying Li
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Miaomiao Pei
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Wushuang Xiao
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Xuehua Liu
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
- Department of Gastroenterology, Shunde Hospital, Southern Medical University, Foshan, 528300, China
| | - Linjie Hong
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Zhen Yu
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Ying Peng
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Jieming Zhang
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Ping Yang
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Jianjiao Lin
- Department of Gastroenterology, The Second Affiliated Hospital, School of Medicine, The Chinese University of Hong Kong, Shenzhen & Longgang District People's Hospital of Shenzhen, Shenzhen, 518172, China
| | - Xiaosheng Wu
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Zhizhao Lin
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Weimei Tang
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Fachao Zhi
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Guoxin Li
- Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Li Xiang
- Department of Gastroenterology, The Second Affiliated Hospital, School of Medicine, The Chinese University of Hong Kong, Shenzhen & Longgang District People's Hospital of Shenzhen, Shenzhen, 518172, China
| | - Aimin Li
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China.
| | - Side Liu
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China.
| | - Ye Chen
- Department of Gastroenterology, Integrative Clinical Microecology Center, Shenzhen Hospital, Southern Medical University, Shenzhen, 518000, China.
| | - Jide Wang
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China.
| |
Collapse
|
14
|
Distefano R, Ilieva M, Madsen JH, Ishii H, Aikawa M, Rennie S, Uchida S. T2DB: A Web Database for Long Non-Coding RNA Genes in Type II Diabetes. Noncoding RNA 2023; 9:30. [PMID: 37218990 PMCID: PMC10204529 DOI: 10.3390/ncrna9030030] [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: 03/27/2023] [Revised: 05/01/2023] [Accepted: 05/04/2023] [Indexed: 05/24/2023] Open
Abstract
Type II diabetes (T2D) is a growing health problem worldwide due to increased levels of obesity and can lead to other life-threatening diseases, such as cardiovascular and kidney diseases. As the number of individuals diagnosed with T2D rises, there is an urgent need to understand the pathogenesis of the disease in order to prevent further harm to the body caused by elevated blood glucose levels. Recent advances in long non-coding RNA (lncRNA) research may provide insights into the pathogenesis of T2D. Although lncRNAs can be readily detected in RNA sequencing (RNA-seq) data, most published datasets of T2D patients compared to healthy donors focus only on protein-coding genes, leaving lncRNAs to be undiscovered and understudied. To address this knowledge gap, we performed a secondary analysis of published RNA-seq data of T2D patients and of patients with related health complications to systematically analyze the expression changes of lncRNA genes in relation to the protein-coding genes. Since immune cells play important roles in T2D, we conducted loss-of-function experiments to provide functional data on the T2D-related lncRNA USP30-AS1, using an in vitro model of pro-inflammatory macrophage activation. To facilitate lncRNA research in T2D, we developed a web application, T2DB, to provide a one-stop-shop for expression profiling of protein-coding and lncRNA genes in T2D patients compared to healthy donors or subjects without T2D.
Collapse
Affiliation(s)
- Rebecca Distefano
- Section for Computational and RNA Biology, Department of Biology, University of Copenhagen, DK-2200 Copenhagen, Denmark;
| | - Mirolyuba Ilieva
- Center for RNA Medicine, Department of Clinical Medicine, Aalborg University, DK-2450 Copenhagen, Denmark; (M.I.); (J.H.M.)
| | - Jens Hedelund Madsen
- Center for RNA Medicine, Department of Clinical Medicine, Aalborg University, DK-2450 Copenhagen, Denmark; (M.I.); (J.H.M.)
| | - Hideshi Ishii
- Center of Medical Innovation and Translational Research, Department of Medical Data Science, Graduate School of Medicine, Osaka University, Suita 565-0871, Japan;
| | - Masanori Aikawa
- Center for Interdisciplinary Cardiovascular Sciences, Cardiovascular Division, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA;
- Channing Division of Network Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA
- Center for Excellence in Vascular Biology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Sarah Rennie
- Section for Computational and RNA Biology, Department of Biology, University of Copenhagen, DK-2200 Copenhagen, Denmark;
| | - Shizuka Uchida
- Center for RNA Medicine, Department of Clinical Medicine, Aalborg University, DK-2450 Copenhagen, Denmark; (M.I.); (J.H.M.)
| |
Collapse
|
15
|
Jiang T, Zhu J, Jiang S, Chen Z, Xu P, Gong R, Zhong C, Cheng Y, Sun X, Yi W, Yang J, Zhou W, Cheng Y. Targeting lncRNA DDIT4-AS1 Sensitizes Triple Negative Breast Cancer to Chemotherapy via Suppressing of Autophagy. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023:e2207257. [PMID: 37096846 DOI: 10.1002/advs.202207257] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 04/06/2023] [Indexed: 05/03/2023]
Abstract
In this study, it is found that the lncRNA, DNA damage inducible transcript 4 antisense RNA1 (DDIT4-AS1), is highly expressed in triple-negative breast cancer (TNBC) cell lines and tissues due to H3K27 acetylation in the promoter region, and promotes the proliferation, migration, and invasion of TNBC cells via activating autophagy. Mechanistically, it is shown that DDIT4-AS1 induces autophagy by stabilizing DDIT4 mRNA via recruiting the RNA binding protein AUF1 and promoting the interaction between DDIT4 mRNA and AUF1, thereby inhibiting mTOR signaling pathway. Furthermore, silencing of DDIT4-AS1 enhances the sensitivity of TNBC cells to chemotherapeutic agents such as paclitaxel both in vitro and in vivo. Using a self-activatable siRNA/drug core-shell nanoparticle system, which effectively deliver both DDIT4-AS1 siRNA and paclitaxel to the tumor-bearing mice, a significantly enhanced antitumor activity is achieved. Importantly, the codelivery nanoparticles exert a stronger antitumor effect on breast cancer patient-derived organoids. These findings indicate that lncRNA DDIT4-AS1-mediated activation of autophagy promotes progression and chemoresistance of TNBC, and targeting of DDIT4-AS1 may be exploited as a new therapeutic approach to enhancing the efficacy of chemotherapy against TNBC.
Collapse
Affiliation(s)
- Ting Jiang
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, 410011, China
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410008, China
- Hunan Provincial Engineering Research Centre of Translational Medicine and Innovative Drug, Changsha, 410011, China
| | - Jiaojiao Zhu
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410008, China
| | - Shilong Jiang
- Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Zonglin Chen
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, 410011, China
| | - Ping Xu
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, 410011, China
| | - Rong Gong
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, 410011, China
| | - Changxin Zhong
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, 410011, China
| | - Yueying Cheng
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, 410011, China
| | - Xinyuan Sun
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, 410011, China
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410008, China
- Hunan Provincial Engineering Research Centre of Translational Medicine and Innovative Drug, Changsha, 410011, China
| | - Wenjun Yi
- Department of General Surgery, The Second Xiangya Hospital, Central South University, Changsha, 410011, China
| | - Jinming Yang
- Department of Cancer Biology and Toxicology, Department of Pharmacology, College of Medicine and Markey Cancer Center, University of Kentucky, Lexington, KY, 40536, USA
| | - Wenhu Zhou
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410008, China
| | - Yan Cheng
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, 410011, China
- Hunan Provincial Engineering Research Centre of Translational Medicine and Innovative Drug, Changsha, 410011, China
- Key Laboratory of Diabetes Immunology (Central South University), Ministry of Education, Changsha, 410011, China
| |
Collapse
|
16
|
Huo Y, Li Q, Yang L, Li X, Sun C, Liu Y, Liu H, Pan Z, Li Q, Du X. SDNOR, a Novel Antioxidative lncRNA, Is Essential for Maintaining the Normal State and Function of Porcine Follicular Granulosa Cells. Antioxidants (Basel) 2023; 12:antiox12040799. [PMID: 37107173 PMCID: PMC10135012 DOI: 10.3390/antiox12040799] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 03/15/2023] [Accepted: 03/22/2023] [Indexed: 04/29/2023] Open
Abstract
Increasing evidence shows that lncRNAs, an important kind of endogenous regulator, are involved in the regulation of follicular development and female fertility, but the mechanism remain largely unknown. In this study, we found that SDNOR, a recently identified antiapoptotic lncRNA, is a potential multifunctional regulator in porcine follicular granulosa cells (GCs) through RNA-seq and multi-dimension analyses. SDNOR-mediated regulatory networks were established and identified that SOX9, a transcription factor inhibited by SDNOR, mediates SDNOR's regulation of the transcription of downstream targets. Functional analyses showed that loss of SDNOR significantly impairs GC morphology, inhibits cell proliferation and viability, reduces E2/P4 index, and suppresses the expression of crucial markers, including PCNA, Ki67, CDK2, CYP11A1, CYP19A1, and StAR. Additionally, after the detection of ROS, SOD, GSH-Px, and MDA, we found that SDNOR elevates the resistance of GCs to oxidative stress (OS) and also inhibits OS-induced apoptosis. Notably, GCs with high SDNOR levels are insensitive to oxidative stress, leading to lower apoptosis rates and higher environmental adaptability. In summary, our findings reveal the regulation of porcine GCs in response to oxidative stress from the perspective of lncRNA and demonstrate that SDNOR is an essential antioxidative lncRNA for maintaining the normal state and function of GCs.
Collapse
Affiliation(s)
- Yangan Huo
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Qiqi Li
- College of Animal Husbandry and Veterinary Medicine, Jiangsu Vocational College Agriculture and Forestry, Jurong 215314, China
| | - Liu Yang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Xiaoxue Li
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Chen Sun
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Yang Liu
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Honglin Liu
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Zengxiang Pan
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Qifa Li
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Xing Du
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| |
Collapse
|
17
|
Peng W, Zhu T, Xiang G, Ding T, Zhao J, Xiong D, Zhong Y, Zhang Y. Identification of signalling downstream of the transcription factor forkhead box protein M1 that protects against endoplasmic reticulum stress in a diabetic foot ulcer model. Diabet Med 2023; 40:e15051. [PMID: 36692102 DOI: 10.1111/dme.15051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 01/12/2023] [Accepted: 01/18/2023] [Indexed: 01/25/2023]
Abstract
AIMS Diabetic foot ulcer (DFU) has a significant impact on the quality of life of diabetic mellitus (DM) patients. Here, we aimed to explore the molecules with aberrant expression and their regulatory mechanisms in DFU. METHODS The expression of gene and protein was examined using quantitative polymerase chain reaction (qPCR) and western blot. Pearson's correlation analysis was used to analyse interactions among FOXM1, GAS5 and SDF4. Immunofluorescence was used to detect PDI and GRP78 expression. Flow cytometry was used to assess cell apoptosis. Tube formation assay was used to determine angiogenic capacity. Fluorescence in situ hybridization (FISH) assay was employed to determine the cellular localization of GAS5 and SDF4 in human umbilical vein endothelial cells (HUVECs). The interactions among FOXM1, GAS5 and SDF4 were validated by chromatin immunoprecipitation (ChIP), luciferase, RNA pull-down and RNA immunoprecipitation (RIP) assays. RESULTS FOXM1, GAS5 and SDF4 were decreased in the skin tissues of DFU patients. High glucose (HG) stimulation induced endoplasmic reticulum (ER) stress and cell apoptosis but suppressed angiogenesis in HUVECs, which were abolished by FOXM1 overexpression. FOXM1 promoted GAS5 transcriptional activity, resulting in increased GAS5 expression, and GAS5 knockdown reversed the effects of FOXM1 overexpression in HG-treated HUVECs. Moreover, GAS5 recruited TAF15 to promote SDF4 expression in HUVECs. GAS5 overexpression inhibited ER stress, cell apoptosis and induced angiogenesis in HG-treated HUVECs which could be reversed by silencing SDF4. CONCLUSION Our results revealed that FOXM1 suppressed ER stress, cell apoptosis and promoted angiogenesis in HG-induced HUVECs via mediating GAS5/TAF15/SDF4 axis, providing a novel therapeutic molecule mechanism for DFU.
Collapse
Affiliation(s)
- Weixia Peng
- Department of Endocrine, Yiyang Central Hospital, Yiyang, Hunan, P.R. China
| | - Ting Zhu
- Department of Endocrine, Yiyang Central Hospital, Yiyang, Hunan, P.R. China
| | - Guangda Xiang
- Department of Endocrine, Central Theater General Hospital of PLA, Wuhan, Hubei, P.R. China
| | - Ting Ding
- Department of Endocrine, Yiyang Central Hospital, Yiyang, Hunan, P.R. China
| | - Jun Zhao
- Department of Endocrine, Yiyang Central Hospital, Yiyang, Hunan, P.R. China
| | - Dan Xiong
- Department of Endocrine, Yiyang Central Hospital, Yiyang, Hunan, P.R. China
| | - Yaqin Zhong
- Department of Endocrine, Yiyang Central Hospital, Yiyang, Hunan, P.R. China
| | - Youqi Zhang
- Department of Emergency, Yiyang Central Hospital, Yiyang, Hunan, P.R. China
| |
Collapse
|
18
|
Xu S, Liu D, Kuang Y, Li R, Wang J, Shi M, Zou Y, Qiu Q, Liang L, Xiao Y, Xu H. Long Noncoding RNA HAFML Promotes Migration and Invasion of Rheumatoid Fibroblast-like Synoviocytes. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2023; 210:135-147. [PMID: 36458981 DOI: 10.4049/jimmunol.2200453] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 11/02/2022] [Indexed: 01/04/2023]
Abstract
The aggressive phenotype exhibited by fibroblast-like synoviocytes (FLSs) is critical for the progression of joint destruction in rheumatoid arthritis (RA). Long noncoding RNAs (lncRNAs) have crucial roles in the pathogenesis of diverse disorders; however, few have been identified that might be able to control the joint damage in RA. In this study, we identified an lncRNA, ENST00000509194, which was expressed at abnormally high levels in FLSs and synovial tissues from patients with RA. ENST00000509194 positively modulates the migration and invasion of FLSs by interacting with human Ag R (HuR, also called ELAVL1), an RNA-binding protein that mainly stabilizes mRNAs. ENST00000509194 binds directly to HuR in the cytoplasm to form a complex that promotes the expression of the endocytic adaptor protein APPL2 by stabilizing APPL2 mRNA. Knockdown of HuR or APPL2 impaired the migration and invasion of RA FLSs. Given its close association with HuR and FLS migration, we named ENST00000509194 as HAFML (HuR-associated fibroblast migratory lncRNA). Our findings suggest that an increase in synovial HAFML might contribute to FLS-mediated rheumatoid synovial aggression and joint destruction, and that the lncRNA HAFML might be a potential therapeutic target for dysregulated fibroblasts in a wide range of diseases.
Collapse
Affiliation(s)
- Siqi Xu
- Department of Rheumatology and Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Di Liu
- Department of Rheumatology and Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Yu Kuang
- Department of Rheumatology and Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Ruiru Li
- Department of Rheumatology and Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Jingnan Wang
- Department of Rheumatology and Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Maohua Shi
- Department of Rheumatology, The First People's Hospital of Foshan, Foshan, Guangdong, China; and
| | - Yaoyao Zou
- Department of Rheumatology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Qian Qiu
- Department of Rheumatology and Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Liuqin Liang
- Department of Rheumatology and Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Youjun Xiao
- Department of Rheumatology and Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Hanshi Xu
- Department of Rheumatology and Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| |
Collapse
|
19
|
LncRNA TUG1 Promoted Stabilization of BAG5 by Binding DDX3X to Exacerbate Ketamine-Induced Neurotoxicity. Neurotox Res 2022; 40:1989-2000. [PMID: 36151390 DOI: 10.1007/s12640-022-00580-w] [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: 05/30/2022] [Revised: 09/07/2022] [Accepted: 09/11/2022] [Indexed: 12/31/2022]
Abstract
As a clinically widely used anesthetic, ketamine (KET) has been reported to cause neurotoxicity in patients. Our work aimed to probe the function of long-chain non-coding RNA taurine-upregulated gene 1 (lncRNA TUG1) in KET-induced neurotoxicity. HT22 cells were subjected to KET to build the cell model. 3-(4, 5-Dimethylthiazolyl2)-2, 5-diphenyltetrazolium bromide (MTT) assay was employed to determine cell viability. Additionally, cell apoptosis was evaluated by flow cytometry. The binding relationships among TUG1, DEAD-box RNA helicase 3X (DDX3X), and Bcl-2-associated athanogene 5 (BAG5) were verified by RIP and RNA pull-down assays. Cell viability was impaired and cell apoptosis was increased in KET-treated HT22 cells accompanied by increased TUG1, DDX3X, and BAG5 expressions. TUG1 knockdown dramatically enhanced cell viability and repressed the of KET-induced apoptosis in HT22 cells, while TUG1 overexpression presented the opposite effects. In addition, we found that TUG1 promoted DDX3X expression via directly binding with DDX3X. As expected, DDX3X overexpression abolished the palliative effect of TUG1 knockdown on KET-induced neurotoxicity. Further research proved that TUG1 increased the stability of BAG5 through interacting with DDX3X. Finally, as expected, the moderating effect of TUG1 knockdown on KET-induced neuron injury was abolished by BAG5 overexpression. Taken together, TUG1 promoted BAG5 expression by binding DDX3X to exacerbate KET-induced neurotoxicity.
Collapse
|
20
|
Sommerauer C, Kutter C. Noncoding RNAs in liver physiology and metabolic diseases. Am J Physiol Cell Physiol 2022; 323:C1003-C1017. [PMID: 35968891 DOI: 10.1152/ajpcell.00232.2022] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The liver holds central roles in detoxification, energy metabolism and whole-body homeostasis but can develop malignant phenotypes when being chronically overwhelmed with fatty acids and glucose. The global rise of metabolic-associated fatty liver disease (MAFLD) is already affecting a quarter of the global population. Pharmaceutical treatment options against different stages of MAFLD do not yet exist and several clinical trials against hepatic transcription factors and other proteins have failed. However, emerging roles of noncoding RNAs, including long (lncRNA) and short noncoding RNAs (sRNA), in various cellular processes pose exciting new avenues for treatment interventions. Actions of noncoding RNAs mostly rely on interactions with proteins, whereby the noncoding RNA fine-tunes protein function in a process termed riboregulation. The developmental stage-, disease stage- and cell type-specific nature of noncoding RNAs harbors enormous potential to precisely target certain cellular pathways in a spatio-temporally defined manner. Proteins interacting with RNAs can be categorized into canonical or non-canonical RNA binding proteins (RBPs) depending on the existence of classical RNA binding domains. Both, RNA- and RBP-centric methods have generated new knowledge of the RNA-RBP interface and added an additional regulatory layer. In this review, we summarize recent advances of how of RBP-lncRNA interactions and various sRNAs shape cellular physiology and the development of liver diseases such as MAFLD and hepatocellular carcinoma.
Collapse
Affiliation(s)
- Christian Sommerauer
- Science for Life Laboratory, Department of Microbiology, Tumor and Cell Biology, grid.4714.6Karolinska Institute, Stockholm, Sweden
| | - Claudia Kutter
- Science for Life Laboratory, Department of Microbiology, Tumor and Cell Biology, grid.4714.6Karolinska Institute, Stockholm, Sweden
| |
Collapse
|
21
|
Xu Y, Yu X, Xu J, Lu J, Jiang H, Lou N, Lu W, Xu J, Ye G, Dong S, Nie F. LncRNA RP11-138J23.1 Contributes to Gastric Cancer Progression by Interacting With RNA-Binding Protein HuR. Front Oncol 2022; 12:848406. [PMID: 35392234 PMCID: PMC8980803 DOI: 10.3389/fonc.2022.848406] [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: 01/04/2022] [Accepted: 02/22/2022] [Indexed: 12/19/2022] Open
Abstract
In spite of improvements in diagnostics and treatment of gastric cancer (GC), it remains the most common malignancy of human digestive system. It is now widely appreciated that long noncoding RNAs (lncRNAs) exert extensive regulatory effects on a spectrum of fundamental biological processes through diverse mechanisms. In this study, we explored the expression level and functional role of lncRNA RP11-138J23.1 in GC. Through bioinformatics analyses and in situ hybridization (ISH), we identified that RP11-138J23.1 was upregulated in GC tissue. Further study showed that RP11-138J23.1 knockdown significantly inhibited cell proliferation and metastatic ability. Whereas, RP11-138J23.1 overexpression could promote tumor cell growth and metastasis in vitro. Additionally, loss-of-function assays were used to confirm the role of RP11-138J23.1 in vivo. Mechanistically, RP11-138J23.1 exerted its oncogenic functions by binding to HuR protein and increasing stability of VAV3 mRNA. Overall, our study highlights the essential role of RP11-138J23.1 in GC, suggesting that RP11-138J23.1 might be a potent therapeutic target for patients with GC.
Collapse
Affiliation(s)
- Yongcan Xu
- Department of General Surgery, Huzhou Central Hospital, Affiliated Central Hospital, Huzhou University, Huzhou, China
| | - Xiang Yu
- Department of General Surgery, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yanta, China
| | - Jing Xu
- Department of Neurology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Jun Lu
- Department of General Surgery, Huzhou Central Hospital, Affiliated Central Hospital, Huzhou University, Huzhou, China
| | - Hao Jiang
- Department of General Surgery, Huzhou Central Hospital, Affiliated Central Hospital, Huzhou University, Huzhou, China
| | - Neng Lou
- Department of General Surgery, Huzhou Central Hospital, Affiliated Central Hospital, Huzhou University, Huzhou, China
| | - Wei Lu
- Department of General Surgery, Huzhou Central Hospital, Affiliated Central Hospital, Huzhou University, Huzhou, China
| | - Jiewei Xu
- Department of General Surgery, Huzhou Central Hospital, Affiliated Central Hospital, Huzhou University, Huzhou, China
| | - Guochao Ye
- Department of General Surgery, Huzhou Central Hospital, Affiliated Central Hospital, Huzhou University, Huzhou, China
| | - Shunli Dong
- Department of Central Laboratory, Huzhou Central Hospital, Affiliated Central Hospital, Huzhou University, Huzhou, China
| | - Fengqi Nie
- Department of Oncology, Second Affiliated Hospital, Nanjing Medical University, Nanjing, China
| |
Collapse
|
22
|
Miller HE, Ilieva M, Bishop AJR, Uchida S. Current Status of Epitranscriptomic Marks Affecting lncRNA Structures and Functions. Noncoding RNA 2022; 8:ncrna8020023. [PMID: 35447886 PMCID: PMC9025719 DOI: 10.3390/ncrna8020023] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 03/21/2022] [Accepted: 03/25/2022] [Indexed: 11/30/2022] Open
Abstract
Long non-coding RNAs (lncRNAs) belong to a class of non-protein-coding RNAs with their lengths longer than 200 nucleotides. Most of the mammalian genome is transcribed as RNA, yet only a small percent of the transcribed RNA corresponds to exons of protein-coding genes. Thus, the number of lncRNAs is predicted to be several times higher than that of protein-coding genes. Because of sheer number of lncRNAs, it is often difficult to elucidate the functions of all lncRNAs, especially those arising from their relationship to their binding partners, such as DNA, RNA, and proteins. Due to their binding to other macromolecules, it has become evident that the structures of lncRNAs influence their functions. In this regard, the recent development of epitranscriptomics (the field of study to investigate RNA modifications) has become important to further elucidate the structures and functions of lncRNAs. In this review, the current status of lncRNA structures and functions influenced by epitranscriptomic marks is discussed.
Collapse
Affiliation(s)
- Henry E. Miller
- Department of Cell Systems and Anatomy, UT Health San Antonio, San Antonio, TX 78229, USA; (H.E.M.); (A.J.R.B.)
- Greehey Children’s Cancer Research Institute, UT Health San Antonio, San Antonio, TX 78229, USA
- Bioinformatics Research Network, Atlanta, GA 30317, USA
| | - Mirolyuba Ilieva
- Center for RNA Medicine, Department of Clinical Medicine, Aalborg University, DK-2450 Copenhagen SV, Denmark;
| | - Alexander J. R. Bishop
- Department of Cell Systems and Anatomy, UT Health San Antonio, San Antonio, TX 78229, USA; (H.E.M.); (A.J.R.B.)
- Greehey Children’s Cancer Research Institute, UT Health San Antonio, San Antonio, TX 78229, USA
- May’s Cancer Center, UT Health San Antonio, San Antonio, TX 78229, USA
| | - Shizuka Uchida
- Center for RNA Medicine, Department of Clinical Medicine, Aalborg University, DK-2450 Copenhagen SV, Denmark;
- Correspondence: or
| |
Collapse
|
23
|
Priyanka P, Sharma M, Das S, Saxena S. E2F1-induced lncRNA, EMSLR regulates lncRNA LncPRESS1. Sci Rep 2022; 12:2548. [PMID: 35169159 PMCID: PMC8847401 DOI: 10.1038/s41598-022-06154-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 01/24/2022] [Indexed: 11/10/2022] Open
Abstract
E2F1 induces hundreds of protein-coding genes influencing diverse signaling pathways but much less is known about its non-coding RNA targets. For identifying E2F1-dependent oncogenic long non-coding RNAs (lncRNAs), we carried out genome-wide transcriptome analysis and discovered an lncRNA, EMSLR, which is induced both in lung adenocarcinoma (LUAD) and lung squamous cell carcinoma (LUSC). EMSLR depletion blocks the cells in G1 phase and inhibits the clonogenic ability indicating that it is essential for the tumor-related phenotypes. We discovered that EMSLR represses the promoter activity of another lncRNA, LncPRESS1, which is located 6.9 kb upstream of EMSLR and they display an inverse expression pattern in lung cancer cell lines. Depletion of C-MYC results in downregulation of EMSLR and simultaneous upregulation of EMSLR target LncPRESS1, exemplifying how C-MYC and E2F1 signal transduction pathways control the network of lncRNA genes to modulate cell proliferation and differentiation.
Collapse
Affiliation(s)
- Priyanka Priyanka
- National Institute of Immunology, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | | | - Sanjeev Das
- National Institute of Immunology, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Sandeep Saxena
- National Institute of Immunology, Aruna Asaf Ali Marg, New Delhi, 110067, India. .,JNU, New Delhi, India.
| |
Collapse
|
24
|
Raguraman R, Shanmugarama S, Mehta M, Elle Peterson J, Zhao YD, Munshi A, Ramesh R. Drug delivery approaches for HuR-targeted therapy for lung cancer. Adv Drug Deliv Rev 2022; 180:114068. [PMID: 34822926 PMCID: PMC8724414 DOI: 10.1016/j.addr.2021.114068] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Accepted: 11/18/2021] [Indexed: 01/03/2023]
Abstract
Lung cancer (LC) is often diagnosed at an advanced stage and conventional treatments for disease management have limitations associated with them. Novel therapeutic targets are thus avidly sought for the effective management of LC. RNA binding proteins (RBPs) have been convincingly established as key players in tumorigenesis, and their dysregulation is linked to multiple cancers, including LC. In this context, we review the role of Human antigen R (HuR), an RBP that is overexpressed in LC, and further associated with various aspects of LC tumor growth and response to therapy. Herein, we describe the role of HuR in LC progression and outline the evidences supporting various pharmacologic and biologic approaches for inhibiting HuR expression and function. These approaches, including use of small molecule inhibitors, siRNAs and shRNAs, have demonstrated favorable results in reducing tumor cell growth, invasion and migration, angiogenesis and metastasis. Hence, HuR has significant potential as a key therapeutic target in LC. Use of siRNA-based approaches, however, have certain limitations that prevent their maximal exploitation as cancer therapies. To address this, in the conclusion of this review, we provide a list of nanomedicine-based HuR targeting approaches currently being employed for siRNA and shRNA delivery, and provide a rationale for the immense potential therapeutic benefits offered by nanocarrier-based HuR targeting and its promise for treating patients with LC.
Collapse
Affiliation(s)
- Rajeswari Raguraman
- Department of Pathology, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA; Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Santny Shanmugarama
- Department of Pathology, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA; Graduate Program in Biomedical Sciences, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
| | - Meghna Mehta
- Radiation Oncology, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA; Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Jo Elle Peterson
- Department of Pathology, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Yan D Zhao
- Biostatistics and Epidemiology, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA; Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Anupama Munshi
- Radiation Oncology, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA; Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Rajagopal Ramesh
- Department of Pathology, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA; Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA; Graduate Program in Biomedical Sciences, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA.
| |
Collapse
|