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Feng L, Yang Y, Lin Z, Cui M, Jin A, Cui A. NCPAD2 is a favorable predictor of prognostic and immunotherapeutic biomarker for multiple cancer types including lung cancer. Genes Environ 2024; 46:2. [PMID: 38172945 PMCID: PMC10763337 DOI: 10.1186/s41021-023-00291-4] [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: 03/18/2023] [Accepted: 11/20/2023] [Indexed: 01/05/2024] Open
Abstract
BACKGROUND Non-SMC condensin I complex subunit D2 (NCAPD2) belongs to the chromosomal structural maintenance family. While the different contribution of NCAPD2 to chromosome in mitosis have been thoroughly investigated, much less is known about the expression of NCAPD2 in pan-cancer. Thus, we used a bioinformatics dataset to conduct a pan-cancer analysis of NCAPD2 to determine its regulatory role in tumors. METHODS Multiple online databases were analyzed NCAPD2 gene expression, protein level, patient survival and functional enrichment in pan-cancer. Genetic alteration and tumor stemness of NCAPD2 were analyzed using cBioPortal and SangerBox. The GSCA and CellMiner were used to explore the relationship between NCAPD2 and drug sensitivity. The diagnostic value of prognosis was evaluated by ROC curve. Subsequently, the immune infiltration level and immune subtype of NCAPD2 in lung adenocarcinoma (LUAD) and lung squamous cell carcinoma (LUSC) were analyzed using TIMER1 and TISIDB. RESULTS NCAPD2 gene expression was significantly higher in most cancers and associated with clinical stage and poor prognosis. Genomic heterogeneity of NCAPD2 promoted the occurrence and development of tumors. GO enrichment analysis suggested NCAPD2 might be involved in DNA repair and immune response. NCAPD2 was involved in immune infiltration of LUAD and LUSC. ROC curves showed that NCAPD2 has important prognosis diagnostic value in LUAD and LUSC. Moreover, NCAPD2 was drug sensitive to topotecan, which may be an optimize immunotherapy. CONCLUSIONS It was found that NCAPD2 was overexpressed in pan-cancers, which was associated with poor outcomes. Importantly, NCAPD2 could be a diagnostic marker and an immune related biomarker for LUAD and LUSC.
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Affiliation(s)
- Linyuan Feng
- Yanbian University Hospital, Yanji, China
- Key Laboratory of Pathobiology of High Frequency Oncology in Ethnic Minority Areas, Yanbian University, State Ethnic Affairs Commission, Yanji, China
| | - Yang Yang
- Key Laboratory of Pathobiology of High Frequency Oncology in Ethnic Minority Areas, Yanbian University, State Ethnic Affairs Commission, Yanji, China
| | - Zhenhua Lin
- Yanbian University Hospital, Yanji, China
- Key Laboratory of Pathobiology of High Frequency Oncology in Ethnic Minority Areas, Yanbian University, State Ethnic Affairs Commission, Yanji, China
| | - Minghua Cui
- Key Laboratory of Pathobiology of High Frequency Oncology in Ethnic Minority Areas, Yanbian University, State Ethnic Affairs Commission, Yanji, China
| | - Aihua Jin
- Yanbian University Hospital, Yanji, China
| | - Aili Cui
- Yanbian University Hospital, Yanji, China.
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Li Z, Mu W, Xiao M. Genetic lesions and targeted therapy in Hodgkin lymphoma. Ther Adv Hematol 2023; 14:20406207221149245. [PMID: 36654739 PMCID: PMC9841868 DOI: 10.1177/20406207221149245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 12/16/2022] [Indexed: 01/15/2023] Open
Abstract
Hodgkin lymphoma is a special type of lymphoma in which tumor cells frequently undergo multiple genetic lesions that are associated with accompanying pathway abnormalities. These pathway abnormalities are dominated by active signaling pathways, such as the JAK-STAT (Janus kinase-signal transducer and activator of transcription) pathway and the NFκB (nuclear factor kappa-B) pathway, which usually result in hyperactive survival signaling. Targeted therapies often play an important role in hematologic malignancies, such as CAR-T therapy (chimeric antigen receptor T-cell immunotherapy) targeting CD19 and CD22 in diffuse large B-cell lymphoma, while in Hodgkin lymphoma, the main targets of targeted therapies are CD30 molecules and PD1 molecules. Drugs targeting other molecules are also under investigation. This review summarizes the actionable genetic lesions, current treatment options, clinical trials for Hodgkin lymphoma and the potential value of those genetic lesions in clinical applications.
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Affiliation(s)
- Zhe Li
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wei Mu
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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3
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Structure-based discovery of 1-(3-fluoro-5-(5-(3-(methylsulfonyl)phenyl)-1H-pyrazolo[3,4-b]pyridin-3-yl)phenyl)-3-(pyrimidin-5-yl)urea as a potent and selective nanomolar type-II PLK4 inhibitor. Eur J Med Chem 2022; 243:114714. [DOI: 10.1016/j.ejmech.2022.114714] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 08/16/2022] [Accepted: 08/22/2022] [Indexed: 02/08/2023]
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Centrosome Defects in Hematological Malignancies: Molecular Mechanisms and Therapeutic Insights. BLOOD SCIENCE 2022; 4:143-151. [DOI: 10.1097/bs9.0000000000000127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 06/07/2022] [Indexed: 11/26/2022] Open
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Xu B, Li J, Xu D, Ran Q. PLK4 inhibitor plus bortezomib exhibits a synergistic effect on treating multiple myeloma via inactivating PI3K/AKT signaling. Ir J Med Sci 2022; 192:561-567. [PMID: 35508865 DOI: 10.1007/s11845-022-03007-9] [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: 02/17/2022] [Accepted: 04/04/2022] [Indexed: 11/26/2022]
Abstract
OBJECTIVE The anti-tumor effect of polo-like kinase 4 (PLK4) inhibitor has been explored in several neoplasms, while its synergy with bortezomib in multiple myeloma (MM) remains elusive. Hence, the present study aimed to investigate the effect of PLK4 inhibitor on the sensitivity of MM to bortezomib treatment and its underlying mechanism. METHODS MM cell lines (RPMI-8226 and U266) were cultured in different concentrations of CFI-400945 (PLK4 inhibitor), bortezomib, or their combination. Subsequently, 740 Y-P (PI3K activator) was added in the combination of CFI-400945 and bortezomib. Besides, cell viability and apoptosis were measured by CCK-8 reagent and TUNEL apoptosis kit, separately; meanwhile, western blot was carried out for detecting PLK4, p-PI3K, PI3K, p-AKT, and AKT. RESULTS CFI-400945 and bortezomib decreased the cell viability in dose-dependent manners in MM cell lines, respectively. The combination of different concentrations of CFI-400945 and bortezomib reduced cell viability compared with monotherapy in MM cell lines (all P < 0.05). Interestingly, 200 nM CFI-400945 and 4 nM bortezomib showed the maximum synergy in MM cell lines. Furthermore, 200 nM CFI-400945 plus 4 nM bortezomib showed a better effect on decreasing cell viability and promoting cell apoptosis than CFI-400945 or bortezomib monotherapy in MM cells cell lines (all P < 0.05). Moreover, 740 Y-P alleviated the effect of bortezomib and CFI-400945 on PI3K/AKT signaling, cell viability, and apoptosis in MM cell lines. CONCLUSIONS PLK4 inhibitor plus bortezomib shows synergy in decreasing cell viability and enhancing cell apoptosis via repressing PI3K/AKT signaling in MM.
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Affiliation(s)
- Biao Xu
- Department of Hematology, General Hospital of Central Theater Command, Wuluo Road 627th, Wuhan, 420015, China
| | - Jingyuan Li
- Department of Hematology, General Hospital of Central Theater Command, Wuluo Road 627th, Wuhan, 420015, China
| | - Dehong Xu
- Department of Hematology, General Hospital of Central Theater Command, Wuluo Road 627th, Wuhan, 420015, China
| | - Qijie Ran
- Department of Hematology, General Hospital of Central Theater Command, Wuluo Road 627th, Wuhan, 420015, China.
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6
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The role of ZNF384, DNAH17, and NDST2 gene expression in non-Hodgkin's lymphoma patients. GENE REPORTS 2021. [DOI: 10.1016/j.genrep.2021.101354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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7
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Zhao Y, Wang X. PLK4: a promising target for cancer therapy. J Cancer Res Clin Oncol 2019; 145:2413-2422. [PMID: 31492983 DOI: 10.1007/s00432-019-02994-0] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Accepted: 08/05/2019] [Indexed: 12/11/2022]
Abstract
PURPOSE Polo-like kinase 4 (PLK4) is a serine/threonine protein kinase that regulates centriole duplication. PLK4 deregulation causes centrosome number abnormalities, mitotic defects, chromosomal instability and, consequently, tumorigenesis. Therefore, PLK4 has emerged as a therapeutic target for the treatment of multiple cancers. In this review, we summarize the critical role of centrosome amplification and PLK4 in cancer. We also highlight recent advances in the development of PLK4 inhibitors and discuss potential combination therapies for cancer. METHODS The relevant literature from PubMed is reviewed in this article. The ClinicalTrials.gov database was searched for clinical trials related to the specific topic. RESULTS PLK4 is aberrantly expressed in multiple cancers and has prognostic value. Targeting PLK4 with inhibitors suppresses tumor growth in vitro and in vivo. CONCLUSIONS PLK4 plays an important role in centrosome amplification and tumor progression. PLK4 inhibitors used alone or in combination with other drugs have shown significant anticancer efficacy, suggesting a potential therapeutic strategy for cancer. The results of relevant clinical trials await evaluation.
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Affiliation(s)
- Yi Zhao
- Department of Hematology, Shandong Provincial Hospital Affiliated to Shandong University, No. 324, Jingwu Road, Jinan, 250021, Shandong, People's Republic of China
| | - Xin Wang
- Department of Hematology, Shandong Provincial Hospital Affiliated to Shandong University, No. 324, Jingwu Road, Jinan, 250021, Shandong, People's Republic of China. .,School of Medicine, Shandong University, Jinan, 250012, Shandong, China. .,Shandong Provincial Engineering Research Center of Lymphoma, Jinan, 250021, Shandong, China. .,Key Laboratory for Kidney Regeneration of Shandong Province, Jinan, 250021, Shandong, China.
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Suri A, Bailey AW, Tavares MT, Gunosewoyo H, Dyer CP, Grupenmacher AT, Piper DR, Horton RA, Tomita T, Kozikowski AP, Roy SM, Sredni ST. Evaluation of Protein Kinase Inhibitors with PLK4 Cross-Over Potential in a Pre-Clinical Model of Cancer. Int J Mol Sci 2019; 20:E2112. [PMID: 31035676 PMCID: PMC6540285 DOI: 10.3390/ijms20092112] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2019] [Revised: 04/26/2019] [Accepted: 04/26/2019] [Indexed: 12/16/2022] Open
Abstract
Polo-like kinase 4 (PLK4) is a cell cycle-regulated protein kinase (PK) recruited at the centrosome in dividing cells. Its overexpression triggers centrosome amplification, which is associated with genetic instability and carcinogenesis. In previous work, we established that PLK4 is overexpressed in pediatric embryonal brain tumors (EBT). We also demonstrated that PLK4 inhibition exerted a cytostatic effect in EBT cells. Here, we examined an array of PK inhibitors (CFI-400945, CFI-400437, centrinone, centrinone-B, R-1530, axitinib, KW-2449, and alisertib) for their potential crossover to PLK4 by comparative structural docking and activity inhibition in multiple established embryonal tumor cell lines (MON, BT-12, BT-16, DAOY, D283). Our analyses demonstrated that: (1) CFI-400437 had the greatest impact overall, but similar to CFI-400945, it is not optimal for brain exposure. Also, their phenotypic anti-cancer impact may, in part, be a consequence of the inhibition of Aurora kinases (AURKs). (2) Centrinone and centrinone B are the most selective PLK4 inhibitors but they are the least likely to penetrate the brain. (3) KW-2449, R-1530 and axitinib are the ones predicted to have moderate-to-good brain penetration. In conclusion, a new selective PLK4 inhibitor with favorable physiochemical properties for optimal brain exposure can be beneficial for the treatment of EBT.
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Affiliation(s)
- Amreena Suri
- Division of Pediatric Neurosurgery, Ann and Robert H. Lurie Children's Hospital of Chicago, Chicago, IL 60611, USA.
- Cancer Biology and Epigenomics Program, Stanley Manne Children's Research Institute, Chicago, IL 60614, USA.
| | - Anders W Bailey
- Division of Pediatric Neurosurgery, Ann and Robert H. Lurie Children's Hospital of Chicago, Chicago, IL 60611, USA.
- Cancer Biology and Epigenomics Program, Stanley Manne Children's Research Institute, Chicago, IL 60614, USA.
| | - Maurício T Tavares
- Department of Pharmacy, University of São Paulo, São Paulo, SP 05508-900, Brazil.
| | - Hendra Gunosewoyo
- School of Pharmacy and Biomedical Sciences, Curtin University, Bentley, Perth, WA 6102, Australia.
| | - Connor P Dyer
- Division of Pediatric Neurosurgery, Ann and Robert H. Lurie Children's Hospital of Chicago, Chicago, IL 60611, USA.
- Cancer Biology and Epigenomics Program, Stanley Manne Children's Research Institute, Chicago, IL 60614, USA.
| | - Alex T Grupenmacher
- Department of Ophtalmology, Universidade Federal de São Paulo, São Paulo, SP 04023-062, Brazil.
| | - David R Piper
- Thermo Fisher Scientific, Research and Development, Biosciences Division, Carlsbad, CA 92008, USA.
| | - Robert A Horton
- Thermo Fisher Scientific, Research and Development, Biosciences Division, Carlsbad, CA 92008, USA.
| | - Tadanori Tomita
- Division of Pediatric Neurosurgery, Ann and Robert H. Lurie Children's Hospital of Chicago, Chicago, IL 60611, USA.
- Cancer Biology and Epigenomics Program, Stanley Manne Children's Research Institute, Chicago, IL 60614, USA.
- Department of Surgery, Northwestern University, Feinberg School of Medicine, Chicago, IL 60611, USA.
| | | | - Saktimayee M Roy
- Department of Pharmacology, Northwestern University, Feinberg School of Medicine, Chicago, IL 60611, USA.
| | - Simone T Sredni
- Division of Pediatric Neurosurgery, Ann and Robert H. Lurie Children's Hospital of Chicago, Chicago, IL 60611, USA.
- Cancer Biology and Epigenomics Program, Stanley Manne Children's Research Institute, Chicago, IL 60614, USA.
- Department of Surgery, Northwestern University, Feinberg School of Medicine, Chicago, IL 60611, USA.
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Abstract
Characteristic components of Hodgkin lymphoma (HL) tissue are the mono- or multinucleated Hodgkin-Reed-Sternberg (HRS) cells. Given the challenges of isolating these rare malignant cells and the difficulty in culturing cells from patients, many investigators have tried to establish cell lines in efforts to develop cellular tools for in vitro studies. A limited number of HL cell lines exist and have provided valuable insights into HL pathobiology. A literature survey indicated that 35 cell lines derived from HL patients have been published. To determine whether all these alleged HL cell lines hold up to scrutiny, we examined the available data and also put some of these cell lines to the test of hierarchical clustering, providing additional information regarding assignment to cell line type and tissue derivation. Hierarchical clustering separated the bona fide (classical) HL cell lines completely from cell lines derived from other lymphoma categories and proved conclusively that HL cell lines represent a distinct entity, irrespective of the cellular origin of the HRS cells. We conclude by pointing out the need for an intensified search for new cell culture avenues in order to develop a new generation of informative HL cell lines covering more widely the spectrum of HL stages and subtypes.
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Affiliation(s)
- Hans G Drexler
- Department of Human and Animal Cell Lines, Leibniz-Institute DSMZ-German Collection of Microorganisms and Cell Cultures, Inhoffenstr. 7B, D-38124 Braunschweig, Germany
| | - Claudia Pommerenke
- Department of Human and Animal Cell Lines, Leibniz-Institute DSMZ-German Collection of Microorganisms and Cell Cultures, Inhoffenstr. 7B, D-38124 Braunschweig, Germany
| | - Sonja Eberth
- Department of Human and Animal Cell Lines, Leibniz-Institute DSMZ-German Collection of Microorganisms and Cell Cultures, Inhoffenstr. 7B, D-38124 Braunschweig, Germany
| | - Stefan Nagel
- Department of Human and Animal Cell Lines, Leibniz-Institute DSMZ-German Collection of Microorganisms and Cell Cultures, Inhoffenstr. 7B, D-38124 Braunschweig, Germany
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Jumping Translocations of 1q in Myelodysplastic Syndrome and Acute Myeloid Leukemia: Report of Three Cases and Review of Literature. Case Rep Genet 2018; 2018:8296478. [PMID: 30271640 PMCID: PMC6151220 DOI: 10.1155/2018/8296478] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Accepted: 08/15/2018] [Indexed: 01/20/2023] Open
Abstract
Jumping translocations of 1q refer to the break-off of chromosome 1q as a donor fusing to two or more recipient chromosomes. We detected jumping translocations of 1q in three patients with initial diagnosis of myelodysplastic syndrome (MDS) and later progression to acute myeloid leukemia (AML). Review of literature found jumping translocations of 1q in 30 reported cases of MDS and AML. The cytogenetic findings from these 33 cases showed that seven cases had a stemline clone and 26 cases had de novo jumping translocations of 1q in which 5% of cell lineages had additional structural rearrangements. In 75% of cases, the 1q donor jumped to the short arm of recipient acrocentric chromosomes. Approximately 82% of the fusions occurred in the telomeric regions of short and long arms and 18% occurred in the pericentric or interstitial regions of recipient chromosomes. Hypomethylation of the donor 1q pericentromeric region and shortened telomeres in recipient chromosomes were associated with the formation of jumping translocations. Jumping translocations of 1q as an indication of chromosomal instability pose high risk for progression of MDS to AML and a poor prognosis. Further understanding of underlying genomic defects and their clinical significance will improve overall treatment and patient care.
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The Dynamic Roles of TGF-β Signalling in EBV-Associated Cancers. Cancers (Basel) 2018; 10:cancers10080247. [PMID: 30060514 PMCID: PMC6115974 DOI: 10.3390/cancers10080247] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Revised: 07/23/2018] [Accepted: 07/25/2018] [Indexed: 02/07/2023] Open
Abstract
The transforming growth factor-β (TGF-β) signalling pathway plays a critical role in carcinogenesis. It has a biphasic action by initially suppressing tumorigenesis but promoting tumour progression in the later stages of disease. Consequently, the functional outcome of TGF-β signalling is strongly context-dependent and is influenced by various factors including cell, tissue and cancer type. Disruption of this pathway can be caused by various means, including genetic and environmental factors. A number of human viruses have been shown to modulate TGF-β signalling during tumorigenesis. In this review, we describe how this pathway is perturbed in Epstein-Barr virus (EBV)-associated cancers and how EBV interferes with TGF-β signal transduction. The role of TGF-β in regulating the EBV life cycle in tumour cells is also discussed.
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Pervasive mutations of JAK-STAT pathway genes in classical Hodgkin lymphoma. Blood 2018; 131:2454-2465. [PMID: 29650799 DOI: 10.1182/blood-2017-11-814913] [Citation(s) in RCA: 147] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Accepted: 04/05/2018] [Indexed: 12/25/2022] Open
Abstract
Dissecting the pathogenesis of classical Hodgkin lymphoma (cHL), a common cancer in young adults, remains challenging because of the rarity of tumor cells in involved tissues (usually <5%). Here, we analyzed the coding genome of cHL by microdissecting tumor and normal cells from 34 patient biopsies for a total of ∼50 000 singly isolated lymphoma cells. We uncovered several recurrently mutated genes, namely, STAT6 (32% of cases), GNA13 (24%), XPO1 (18%), and ITPKB (16%), and document the functional role of mutant STAT6 in sustaining tumor cell viability. Mutations of STAT6 genetically and functionally cooperated with disruption of SOCS1, a JAK-STAT pathway inhibitor, to promote cHL growth. Overall, 87% of cases showed dysregulation of the JAK-STAT pathway by genetic alterations in multiple genes (also including STAT3, STAT5B, JAK1, JAK2, and PTPN1), attesting to the pivotal role of this pathway in cHL pathogenesis and highlighting its potential as a new therapeutic target in this disease.
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Cordeiro A, Monzó M, Navarro A. Non-Coding RNAs in Hodgkin Lymphoma. Int J Mol Sci 2017; 18:ijms18061154. [PMID: 28555062 PMCID: PMC5485978 DOI: 10.3390/ijms18061154] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Revised: 05/23/2017] [Accepted: 05/26/2017] [Indexed: 12/22/2022] Open
Abstract
MicroRNAs (miRNAs), small non-coding RNAs that regulate gene expression by binding to the 3’-UTR of their target genes, can act as oncogenes or tumor suppressors. Recently, other types of non-coding RNAs—piwiRNAs and long non-coding RNAs—have also been identified. Hodgkin lymphoma (HL) is a B cell origin disease characterized by the presence of only 1% of tumor cells, known as Hodgkin and Reed-Stenberg (HRS) cells, which interact with the microenvironment to evade apoptosis. Several studies have reported specific miRNA signatures that can differentiate HL lymph nodes from reactive lymph nodes, identify histologic groups within classical HL, and distinguish HRS cells from germinal center B cells. Moreover, some signatures are associated with survival or response to chemotherapy. Most of the miRNAs in the signatures regulate genes related to apoptosis, cell cycle arrest, or signaling pathways. Here we review findings on miRNAs in HL, as well as on other non-coding RNAs.
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Affiliation(s)
- Anna Cordeiro
- Molecular Oncology and Embryology Laboratory, Human Anatomy and Embryology Unit, School of Medicine, University of Barcelona, C/Casanova 143, 08032 Barcelona, Spain.
| | - Mariano Monzó
- Molecular Oncology and Embryology Laboratory, Human Anatomy and Embryology Unit, School of Medicine, University of Barcelona, C/Casanova 143, 08032 Barcelona, Spain.
| | - Alfons Navarro
- Molecular Oncology and Embryology Laboratory, Human Anatomy and Embryology Unit, School of Medicine, University of Barcelona, C/Casanova 143, 08032 Barcelona, Spain.
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