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Qin Y, Li Z, Zhang X, Li J, Teng Y, Zhang N, Zhao S, Kong L, Niu W. Pan-cancer exploration of PNO1: A prospective prognostic biomarker with ties to immune infiltration. Heliyon 2024; 10:e36819. [PMID: 39263087 PMCID: PMC11387552 DOI: 10.1016/j.heliyon.2024.e36819] [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: 09/04/2023] [Revised: 08/21/2024] [Accepted: 08/22/2024] [Indexed: 09/13/2024] Open
Abstract
The partner of NOB1 homolog (PNO1) is an RNA-binding protein that participates in ribosome biogenesis and protein modification. The functions of this molecule are largely unknown in cancers, particularly breast cancer. We employed bioinformatics methods to probe the putative oncogenic functions of PNO1 based on expression profiles and clinical data from the cancer genome atlas (TCGA), genotype-tissue expression project (GTEx), human protein atlas (HPA), cancer cell line encyclopedia (CCLE), UALCAN, drug sensitivity in cancer (GDSC) and UCSC XENA databases. Our analyses revealed that PNO1 was overexpressed in 31 malignancies, which excluded kidney chromophobe (KICH) and acute myeloid leukemia (LAML). Prognostic assessments have demonstrated that high PNO1 expression was significantly correlated with poor overall and disease-specific survival in various cancers. The promoter methylation level of PNO1 is significantly decreased in breast invasive carcinoma (BRCA), head and neck squamous cell carcinoma (HNSC), kidney renal papillary cell carcinoma (KIRP), prostate adenocarcinoma (PRAD), thyroid carcinoma (THCA) and uterine corpus endometrial carcinoma (UCEC). Furthermore, inhibition of PNO1 decreased the viability, migration and invasion of breast cancer cells, and these results were confirmed by mouse xenograft models of breast cancer. In addition, we discovered that tumor microenvironment (TME), immune infiltration, and chemotherapy sensitivity were influenced by PNO1 expression. Concordantly, our analyses revealed a significant positive correlation between PNO1 and programmed cell death ligand 1 (PD-L1) expression across breast carcinoma samples. In conclusion, these findings indicate that PNO1 could act as a promising prognostic biomarker and adjunct diagnostic indicator, because it affects tumor growth and invasion. Our study offers valuable new perspectives on the oncogenic role of PNO1 in various types of cancers.
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Affiliation(s)
- Yinhui Qin
- Department of Pharmacy, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Henan University People's Hospital, Zhengzhou, 450003, Henan, China
| | - Zhen Li
- Department of Pathology, Henan Key Laboratory for Digital Pathology Medicine, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Henan University People's Hospital, Zhengzhou, 450003, Henan, China
| | - Xianwei Zhang
- Department of Pathology, Henan Key Laboratory for Digital Pathology Medicine, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Henan University People's Hospital, Zhengzhou, 450003, Henan, China
| | - Junjun Li
- The Fourth Affiliated Hospital, Zhejiang University School of Medicine, No. N1 Shangcheng Avenue, Hangzhou, 310058, Zhejiang, China
| | - Yuetai Teng
- Department of Pharmacy, Jinan Vocational College of Nursing, Jinan, 250102, China
| | - Na Zhang
- Shandong Academy of Chinese Medicine, Jinan, 250014, China
| | - Shengyu Zhao
- Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Lingfei Kong
- Department of Pathology, Henan Key Laboratory for Digital Pathology Medicine, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Henan University People's Hospital, Zhengzhou, 450003, Henan, China
| | - Weihong Niu
- Department of Pathology, Henan Key Laboratory for Digital Pathology Medicine, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Henan University People's Hospital, Zhengzhou, 450003, Henan, China
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2
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Cao LJ, Liu LY, Chen YQ, Han YY, Wei LH, Yao MY, Fang Y, Wu MZ, Cheng Y, Sferra TJ, Liu HX, Li L, Peng J, Shen AL. Pien Tze Huang Inhibits Proliferation of Colorectal Cancer Cells through Suppressing PNO1 Expression and Activating p53/p21 Signaling Pathway. Chin J Integr Med 2024; 30:515-524. [PMID: 38216838 DOI: 10.1007/s11655-024-3709-5] [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] [Accepted: 06/02/2023] [Indexed: 01/14/2024]
Abstract
OBJECTIVE To explore the regulatory effect of Pien Tze Huang (PZH) on targeting partner of NOB1 (PNO1) and it's down-stream mediators in colorectal cancer (CRC) cells. METHODS Quantitative polymerase chain reaction was performed to determine mRNA levels of PNO1, TP53, and CDKN1A. Western blotting was performed to determine protein levels of PNO1, p53, and p21. HCT-8 cells were transduced with a lentivirus over-expressing PNO1. Colony formation assay was used to detect cell survival in PNO1 overexpression of HCT-8 cells after PZH treatment. Cell-cycle distribution, cell viability and cell apoptosis were performed to identify the effect of PNO1 overexpression on cell proliferation and apoptosis of HCT-8 cells after PZH treatment. Xenograft BALB/c nude mice bearing HCT116 cells transduced with sh-PNO1 or sh-Ctrl lentivirus were evaluated. Western blot assay was performed to detect PNO1, p53, p21 and PCNA expression in tumor sections. Terminal deoxynucleotidyl transferase dUTP nick end labling (TUNEL) assay was used to determine the apoptotic cells in tissues. RESULTS PZH treatment decreased cell viability, down-regulated PNO1 expression, and up-regulated p53 and p21 expressions in HCT-8 cells (P<0.05). PNO1 overexpression attenuated the effects of PZH treatment, including the expression of p53 and p21, cell growth, cell viability, cell cycle arrest and cell apoptosis in vitro (P<0.05). PNO1 knockdown eliminated the effects of PZH treatment on tumor growth, inhibiting cell proliferation inhibition and apoptosis induction in vivo (P<0.05). Similarly, PNO1 knockdown attenuated the effects of PZH treatment on the down-regulation of PNO1 and up-regulation of p53 and p21 in vivo (P<0.05). CONCLUSION The mechanism by which PZH induces its CRC anti-proliferative effect is at least in part by regulating the expression of PNO1 and its downstream targets p53 and p21.
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Affiliation(s)
- Liu-Jing Cao
- Clinical Research Institute, the Second Affiliated Hospital & Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, 350122, China
- Fujian Key Laboratory of Integrative Medicine in Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, 350122, China
| | - Li-Ya Liu
- Clinical Research Institute, the Second Affiliated Hospital & Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, 350122, China
- Fujian Key Laboratory of Integrative Medicine in Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, 350122, China
| | - You-Qin Chen
- Department of Pediatrics, Case Western Reserve University School of Medicine, UH Rainbow Babies and Children's Hospital, Cleveland, OH, 44106, USA
| | - Yu-Ying Han
- Clinical Research Institute, the Second Affiliated Hospital & Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, 350122, China
- Fujian Key Laboratory of Integrative Medicine in Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, 350122, China
| | - Li-Hui Wei
- Clinical Research Institute, the Second Affiliated Hospital & Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, 350122, China
- Fujian Key Laboratory of Integrative Medicine in Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, 350122, China
- Innovation and Transformation Center, Fujian University of Traditional Chinese Medicine, Fuzhou, 350122, China
| | - Meng-Ying Yao
- Clinical Research Institute, the Second Affiliated Hospital & Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, 350122, China
- Fujian Key Laboratory of Integrative Medicine in Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, 350122, China
| | - Yi Fang
- Clinical Research Institute, the Second Affiliated Hospital & Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, 350122, China
- Fujian Key Laboratory of Integrative Medicine in Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, 350122, China
- Innovation and Transformation Center, Fujian University of Traditional Chinese Medicine, Fuzhou, 350122, China
| | - Mei-Zhu Wu
- Clinical Research Institute, the Second Affiliated Hospital & Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, 350122, China
- Fujian Key Laboratory of Integrative Medicine in Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, 350122, China
| | - Ying Cheng
- Clinical Research Institute, the Second Affiliated Hospital & Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, 350122, China
- Fujian Key Laboratory of Integrative Medicine in Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, 350122, China
| | - Thomas J Sferra
- Department of Pediatrics, Case Western Reserve University School of Medicine, UH Rainbow Babies and Children's Hospital, Cleveland, OH, 44106, USA
| | - Hui-Xin Liu
- Clinical Research Institute, the Second Affiliated Hospital & Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, 350122, China
- Fujian Key Laboratory of Integrative Medicine in Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, 350122, China
| | - Li Li
- Department of Health Management, Fujian Provincial Hospital, Shengli Clinical College of Fujian Medical University, Fuzhou, 000000, China
| | - Jun Peng
- Clinical Research Institute, the Second Affiliated Hospital & Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, 350122, China
- Fujian Key Laboratory of Integrative Medicine in Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, 350122, China
- Innovation and Transformation Center, Fujian University of Traditional Chinese Medicine, Fuzhou, 350122, China
| | - A-Ling Shen
- Clinical Research Institute, the Second Affiliated Hospital & Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, 350122, China.
- Fujian Key Laboratory of Integrative Medicine in Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, 350122, China.
- Innovation and Transformation Center, Fujian University of Traditional Chinese Medicine, Fuzhou, 350122, China.
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Roy SK, Srivastava S, McCance C, Shrivastava A, Morvant J, Shankar S, Srivastava RK. Clinical significance of PNO1 as a novel biomarker and therapeutic target of hepatocellular carcinoma. J Cell Mol Med 2024; 28:e18295. [PMID: 38722284 PMCID: PMC11081011 DOI: 10.1111/jcmm.18295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 03/10/2024] [Accepted: 03/25/2024] [Indexed: 05/12/2024] Open
Abstract
The RNA-binding protein PNO1 plays an essential role in ribosome biogenesis. Recent studies have shown that it is involved in tumorigenesis; however, its role in hepatocellular carcinoma (HCC) is not well understood. The purpose of this study was to examine whether PNO1 can be used as a biomarker of HCC and also examine the therapeutic potential of PNO1 knockout for the treatment of HCC. PNO1 expression was upregulated in HCC and associated with poor prognosis. PNO1 expression was positively associated with tumour stage, lymph node metastasis and poor survival. PNO1 expression was significantly higher in HCC compared to that in fibrolamellar carcinoma or normal tissues. Furthermore, HCC tissues with mutant Tp53 expressed higher PNO1 than those with wild-type Tp53. PNO1 knockout suppressed cell viability, colony formation and EMT of HCC cells. Since activation of Notch signalling pathway promotes HCC, we measured the effects of PNO1 knockout on the components of Notch pathway and its targets. PNO1 knockout suppressed Notch signalling by modulating the expression of Notch ligands and their receptors, and downstream targets. PNO1 knockout also inhibited genes involved in surface adhesion, cell cycle, inflammation and chemotaxis. PNO1 knockout also inhibited colony and spheroid formation, cell migration and invasion, and markers of stem cells, pluripotency and EMT in CSCs. Overall, our data suggest that PNO1 can be used as a diagnostic and prognostic biomarker of HCC, and knockout of PNO1 by CRISPR/Cas9 can be beneficial for the management of HCC by targeting CSCs.
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Affiliation(s)
- Sanjit K. Roy
- Stanley S. Scott Cancer Center, School of MedicineLouisiana State University HealthNew OrleansLouisianaUSA
| | | | - Caroline McCance
- Department of Cellular and Molecular BiologyTulane UniversityNew OrleansLouisianaUSA
| | | | - Jason Morvant
- Department of SurgeryOchsner Health SystemGretnaLouisianaUSA
| | - Sharmila Shankar
- Southeast Louisiana Veterans Health Care SystemNew OrleansLouisianaUSA
- John W. Deming Department of MedicineTulane University School of MedicineNew OrleansLouisianaUSA
| | - Rakesh K. Srivastava
- Stanley S. Scott Cancer Center, School of MedicineLouisiana State University HealthNew OrleansLouisianaUSA
- Southeast Louisiana Veterans Health Care SystemNew OrleansLouisianaUSA
- Department of GeneticsLouisiana State University Health Sciences Center – New OrleansNew OrleansLouisianaUSA
- GLAXDoverDelawareUSA
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4
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Fang L, Wang B, Yang Z, Zhao T, Hao W. PNO1 promotes the progression of osteosarcoma via TGF-β and YAP/TAZ pathway. Sci Rep 2023; 13:21827. [PMID: 38071381 PMCID: PMC10710495 DOI: 10.1038/s41598-023-49295-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Accepted: 12/06/2023] [Indexed: 12/18/2023] Open
Abstract
This study aimed to explore the potential role and mechanisms of the partner of NOB1 homolog (PNO1) in osteosarcoma. The expression of PNO1 in tumor and adjacent tissue samples was examined using western blotting. Lentiviral transfection was used to establish sh-Ctrl and sh-PNO1 osteosarcoma cell lines. MTT assay, Celigo cell cytometer count, and cell colony formation assay were used to investigate the proliferation of osteosarcoma cells in vitro, whereas xenotransplantation assay was performed for in vivo experiments. Wound-healing and Transwell assays were chosen to verify the migration and invasion of osteosarcoma cells. Flow cytometry assay and caspase-3/7 activity analysis were adopted for the analysis of cell apoptosis and cell cycle. Finally, transcriptome sequencing and bioinformatics analysis were adopted to explore the acting mechanisms. The expression of PNO1 was higher in osteosarcoma tissues than that in adjacent tissues. Down-regulation of PNO1 inhibited the proliferation, migration, and invasion, and induced cell apoptosis and cell cycle arrest of osteosarcoma cells. Furthermore, according to transcriptome sequencing and Kyoto Encyclopedia of Genes and Genomes pathway analysis, we found that PNO1 might affect the progression of osteosarcoma via TGF-β and YAP/TAZ signaling pathways. PNO1 could be a potential target for osteosarcoma treatment.
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Affiliation(s)
- Long Fang
- Department of Bone and Soft Tissue Tumors, Shandong Provincial Third Hospital, Shandong University, Jinan, 250000, China
| | - Baolong Wang
- Department of Bone and Soft Tissue Tumors, Shandong Provincial Third Hospital, Shandong University, Jinan, 250000, China
| | - Zengkun Yang
- Department of Bone and Soft Tissue Tumors, Shandong Provincial Third Hospital, Shandong University, Jinan, 250000, China
| | - Tingbao Zhao
- Department of Bone and Soft Tissue Tumors, Shandong Provincial Third Hospital, Shandong University, Jinan, 250000, China
| | - Wei Hao
- Department of Orthopedics and Traumatology, Shandong Provincial Third Hospital, Shandong University, Jinan, 250000, China.
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5
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Yang Q, Yang B, Chen M. Partner of NOB1 homolog transcriptionally activated by E2F transcription factor 1 promotes the malignant progression and inhibits ferroptosis of pancreatic cancer. CHINESE J PHYSIOL 2023; 66:388-399. [PMID: 37929351 DOI: 10.4103/cjop.cjop-d-23-00063] [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: 11/07/2023] Open
Abstract
Pancreatic cancer (PC) is one of the deadliest malignancies. Partner of NOB1 homolog (PNO1) has been reported to be involved in tumorigenesis. However, the role of PNO1 in PC remains to be elucidated. The purpose of this study was to examine the effects of PNO1 on the progression of PC and the possible mechanism related to E2F transcription factor 1 (E2F1), a transcription factor predicted by the JASPAR database to bind to the PNO1 promoter region and promoted the proliferation of pancreatic ductal adenocarcinoma. First, PNO1 expression in PC tissues and its association with survival rate were analyzed by the Gene Expression Profiling Interactive Analysis database. Western blot and reverse transcription-quantitative polymerase chain reaction were used to evaluate PNO1 expression in several PC cell lines. After PNO1 silencing, cell proliferation, migration, and invasion were measured by colony formation assay, 5-ethynyl-2'-deoxyuridine staining, wound healing, and transwell assays. Then, the lipid reactive oxygen species in PANC-1 cells was estimated by using C11-BODIPY581/591 probe. The levels of glutathione, malondialdehyde, and iron were measured. The binding between PNO1 and E2F1 was confirmed by luciferase and chromatin immunoprecipitation (ChIP) assays. Subsequently, E2F1 was overexpressed in PANC-1 cells with PNO1 knockdown to perform the rescue experiments. Results revealed that PNO1 was highly expressed in PC tissues and PNO1 expression was positively correlated with overall survival rate and disease-free survival rate. Significantly elevated PNO1 expression was also observed in PC cell lines. PNO1 knockdown inhibited the proliferation, migration, and invasion of PANC-1 cells. Moreover, ferroptosis was promoted in PNO1-silenced PANC-1 cells. Results of luciferase and ChIP assays indicated that E2F1 could bind to PNO1 promoter region. Rescue experiments suggested that E2F1 overexpression reversed the impacts of PNO1 depletion on the malignant behaviors and ferroptosis in PANC-1 cells. Summing up, PNO1 transcriptionally activated by E2F1 promotes the malignant progression and inhibits the ferroptosis of PC.
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Affiliation(s)
- Qin Yang
- Department of Laboratory Medicine, General Hospital of Central Theatre Command, Wuhan, Hubei, China
| | - Bin Yang
- Department of Burn and Plastic Surgery, General Hospital of Central Theatre Command, Wuhan, Hubei, China
| | - Min Chen
- Department of Laboratory Medicine, General Hospital of Central Theatre Command, Wuhan, Hubei, China
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Villarruel-Melquiades F, Mendoza-Garrido ME, García-Cuellar CM, Sánchez-Pérez Y, Pérez-Carreón JI, Camacho J. Current and novel approaches in the pharmacological treatment of hepatocellular carcinoma. World J Gastroenterol 2023; 29:2571-2599. [PMID: 37213397 PMCID: PMC10198058 DOI: 10.3748/wjg.v29.i17.2571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 01/19/2023] [Accepted: 04/11/2023] [Indexed: 05/07/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is one of the most lethal malignant tumours worldwide. The mortality-to-incidence ratio is up to 91.6% in many countries, representing the third leading cause of cancer-related deaths. Systemic drugs, including the multikinase inhibitors sorafenib and lenvatinib, are first-line drugs used in HCC treatment. Unfortunately, these therapies are ineffective in most cases due to late diagnosis and the development of tumour resistance. Thus, novel pharmacological alternatives are urgently needed. For instance, immune checkpoint inhibitors have provided new approaches targeting cells of the immune system. Furthermore, monoclonal antibodies against programmed cell death-1 have shown benefits in HCC patients. In addition, drug combinations, including first-line treatment and immunotherapy, as well as drug repurposing, are promising novel therapeutic alternatives. Here, we review the current and novel pharmacological approaches to fight HCC. Preclinical studies, as well as approved and ongoing clinical trials for liver cancer treatment, are discussed. The pharmacological opportunities analysed here should lead to significant improvement in HCC therapy.
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Affiliation(s)
- Fernanda Villarruel-Melquiades
- Departamento de Farmacología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Mexico City 07360, Mexico
| | - María Eugenia Mendoza-Garrido
- Departamento de Fisiología, Biofísica y Neurociencias, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Mexico City 07360, Mexico
| | - Claudia M García-Cuellar
- Subdirección de Investigación Básica, Instituto Nacional de Cancerología (INCan), Mexico City 14080, Mexico
| | - Yesennia Sánchez-Pérez
- Subdirección de Investigación Básica, Instituto Nacional de Cancerología (INCan), Mexico City 14080, Mexico
| | - Julio Isael Pérez-Carreón
- Instituto Nacional de Medicina Genómica, Instituto Nacional de Medicina Genómica (INMEGEN), Mexico City 14610, Mexico
| | - Javier Camacho
- Departamento de Farmacología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Mexico City 07360, Mexico
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7
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Roy SK, Srivastava S, Hancock A, Shrivastava A, Morvant J, Shankar S, Srivastava RK. Inhibition of ribosome assembly factor PNO1 by CRISPR/Cas9 technique suppresses lung adenocarcinoma and Notch pathway: Clinical application. J Cell Mol Med 2023; 27:365-378. [PMID: 36625087 PMCID: PMC9889701 DOI: 10.1111/jcmm.17657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 12/11/2022] [Accepted: 12/19/2022] [Indexed: 01/11/2023] Open
Abstract
Growth is crucially controlled by the functional ribosomes available in cells. To meet the enhanced energy demand, cancer cells re-wire and increase their ribosome biogenesis. The RNA-binding protein PNO1, a ribosome assembly factor, plays an essential role in ribosome biogenesis. The purpose of this study was to examine whether PNO1 can be used as a biomarker for lung adenocarcinoma and also examine the molecular mechanisms by which PNO1 knockdown by CRISPR/Cas9 inhibited growth and epithelial-mesenchymal transition (EMT). The expression of PNO1 was significantly higher in lung adenocarcinoma compared to normal lung tissues. PNO1 expression in lung adenocarcinoma patients increased with stage, nodal metastasis, and smoking. Lung adenocarcinoma tissues from males expressed higher PNO1 than those from females. Furthermore, lung adenocarcinoma tissues with mutant Tp53 expressed higher PNO1 than those with wild-type Tp53, suggesting the influence of Tp53 status on PNO1 expression. PNO1 knockdown inhibited cell viability, colony formation, and EMT, and induced apoptosis. Since dysregulated signalling through the Notch receptors promotes lung adenocarcinoma, we measured the effects of PNO1 inhibition on the Notch pathway. PNO1 knockdown inhibited Notch signalling by suppressing the expression of Notch receptors, their ligands, and downstream targets. PNO1 knockdown also suppressed CCND1, p21, PTGS-2, IL-1α, IL-8, and CXCL-8 genes. Overall, our data suggest that PNO1 can be used as a diagnostic biomarker, and also can be an attractive therapeutic target for the treatment of lung adenocarcinoma.
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Affiliation(s)
- Sanjit K. Roy
- Louisiana State University Health‐New Orleans, School of MedicineStanley S. Scott Cancer CenterNew OrleansLouisianaUSA,Southeast Louisiana Veterans Health Care SystemNew OrleansLouisianaUSA
| | | | - Andrew Hancock
- Department of Molecular and Cellular BiologyTulane UniversityNew OrleansLouisianaUSA
| | | | - Jason Morvant
- Department of SurgeryOchsner Health SystemGretnaLouisianaUSA
| | - Sharmila Shankar
- Louisiana State University Health‐New Orleans, School of MedicineStanley S. Scott Cancer CenterNew OrleansLouisianaUSA,Southeast Louisiana Veterans Health Care SystemNew OrleansLouisianaUSA,Department of GeneticsLouisiana State University Health Sciences CenterNew OrleansLouisianaUSA,John W. Deming Department of MedicineTulane University School of MedicineNew OrleansLouisianaUSA,Kansas City VA Medical CenterKansas CityMissouriUSA
| | - Rakesh K. Srivastava
- Louisiana State University Health‐New Orleans, School of MedicineStanley S. Scott Cancer CenterNew OrleansLouisianaUSA,Southeast Louisiana Veterans Health Care SystemNew OrleansLouisianaUSA,Department of GeneticsLouisiana State University Health Sciences CenterNew OrleansLouisianaUSA,Kansas City VA Medical CenterKansas CityMissouriUSA
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8
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Chen X, Yu D, Zhou H, Zhang X, Hu Y, Zhang R, Gao X, Lin M, Guo T, Zhang K. The role of EphA7 in different tumors. Clin Transl Oncol 2022; 24:1274-1289. [PMID: 35112312 DOI: 10.1007/s12094-022-02783-1] [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: 11/17/2021] [Accepted: 01/18/2022] [Indexed: 12/06/2022]
Abstract
Ephrin receptor A7 (EphA7) is a member of the Eph receptor family. It is widely involved in signal transduction between cells, regulates cell proliferation and differentiation, and participates in developing neural tubes and brain. In addition, EphA7 also has a dual role of tumor promoter and tumor suppressor. It can participate in cell proliferation, migration and apoptosis through various mechanisms, and affect tumor differentiation, staging and prognosis. EphA7 may be a potential diagnostic marker and tumor treatment target. This article reviews the effects of EphA7 on a variety of tumor biological processes and pathological characteristics, as well as specific effects and regulatory mechanisms.
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Affiliation(s)
- Xiangyi Chen
- Department of Orthopedics, Lanzhou University Second Hospital, 82 Cuiying Men, Lanzhou, 730030, China.,Gansu Key Laboratory of Bone and Joint Diseases, Lanzhou, 730030, China.,Xigu District People's Hospital, Lanzhou, 730030, China
| | - Dechen Yu
- Department of Orthopedics, Lanzhou University Second Hospital, 82 Cuiying Men, Lanzhou, 730030, China.,Gansu Key Laboratory of Bone and Joint Diseases, Lanzhou, 730030, China.,Xigu District People's Hospital, Lanzhou, 730030, China
| | - Haiyu Zhou
- Department of Orthopedics, Lanzhou University Second Hospital, 82 Cuiying Men, Lanzhou, 730030, China. .,Gansu Key Laboratory of Bone and Joint Diseases, Lanzhou, 730030, China. .,Xigu District People's Hospital, Lanzhou, 730030, China.
| | - Xiaobo Zhang
- Department of Orthopedics, Lanzhou University Second Hospital, 82 Cuiying Men, Lanzhou, 730030, China.,Gansu Key Laboratory of Bone and Joint Diseases, Lanzhou, 730030, China.,Xigu District People's Hospital, Lanzhou, 730030, China
| | - Yicun Hu
- Department of Orthopedics, Lanzhou University Second Hospital, 82 Cuiying Men, Lanzhou, 730030, China.,Gansu Key Laboratory of Bone and Joint Diseases, Lanzhou, 730030, China.,Xigu District People's Hospital, Lanzhou, 730030, China
| | - Ruihao Zhang
- Department of Orthopedics, Lanzhou University Second Hospital, 82 Cuiying Men, Lanzhou, 730030, China.,Gansu Key Laboratory of Bone and Joint Diseases, Lanzhou, 730030, China.,Xigu District People's Hospital, Lanzhou, 730030, China
| | - Xidan Gao
- Department of Orthopedics, Lanzhou University Second Hospital, 82 Cuiying Men, Lanzhou, 730030, China.,Gansu Key Laboratory of Bone and Joint Diseases, Lanzhou, 730030, China.,Xigu District People's Hospital, Lanzhou, 730030, China
| | - Maoqiang Lin
- Department of Orthopedics, Lanzhou University Second Hospital, 82 Cuiying Men, Lanzhou, 730030, China.,Gansu Key Laboratory of Bone and Joint Diseases, Lanzhou, 730030, China.,Xigu District People's Hospital, Lanzhou, 730030, China
| | - Taowen Guo
- Department of Orthopedics, Lanzhou University Second Hospital, 82 Cuiying Men, Lanzhou, 730030, China.,Gansu Key Laboratory of Bone and Joint Diseases, Lanzhou, 730030, China.,Xigu District People's Hospital, Lanzhou, 730030, China
| | - Kun Zhang
- Department of Orthopedics, Lanzhou University Second Hospital, 82 Cuiying Men, Lanzhou, 730030, China.,Gansu Key Laboratory of Bone and Joint Diseases, Lanzhou, 730030, China.,Xigu District People's Hospital, Lanzhou, 730030, China
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