1
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Chen Y, Sun L, Li L. Human papillomavirus type 16 E7 promotes cell viability and migration in cervical cancer by regulating the miR-23a/HOXC8 axis. J OBSTET GYNAECOL 2024; 44:2311658. [PMID: 38348790 DOI: 10.1080/01443615.2024.2311658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 01/21/2024] [Indexed: 02/15/2024]
Abstract
BACKGROUND Human papillomavirus (HPV) is a risk factor for the occurrence of cervical cancer (CC). Here, we aimed to explore the role of HPV16 in CC and identify the underlying mechanism. METHODS The expression of miR-23a, HPV16 E6/E7 and homeobox C8 (HOXC8) was measured by quantitative real-time PCR or western blot. Cell viability and migration were evaluated using cell counting kit-8, Transwell and wound healing assays. The targeting relationship between miR-23a and HOXC8 was revealed by dual-luciferase reporter assay. RESULTS miR-23a was downregulated in HPV16-positive (HPV16+) CC tissues and HPV16+ and HPV18+ cells. Additionally, E6/E7 expression was increased in CC cells. Then, we found that E7, rather than E6, positively regulated miR-23a expression. miR-23a suppressed cell viability and migration, whereas E7 overexpression abrogated this suppression. miR-23a targeted HOXC8, which reversed miR-23a-mediated cell viability and migration. CONCLUSIONS HPV16 E7-mediated miR-23a suppressed CC cell viability and migration by targeting HOXC8, suggesting a novel mechanism of HPV-induced CC.
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Affiliation(s)
- Yahang Chen
- Department of Gynecology, Heilongjiang Provincial Hospital, Harbin, China
| | - Lei Sun
- Department of Obstetrics and Gynecology, Shuangcheng District People's Hospital, Harbin, China
| | - Lin Li
- Department of Gynecology, Heilongjiang Provincial Hospital, Harbin, China
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2
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Kerry J, Specker EJ, Mizzoni M, Brumwell A, Fell L, Goodbrand J, Rosen MN, Uniacke J. Autophagy-dependent alternative splicing of ribosomal protein S24 produces a more stable isoform that aids in hypoxic cell survival. FEBS Lett 2024; 598:503-520. [PMID: 38281767 DOI: 10.1002/1873-3468.14804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 12/08/2023] [Accepted: 12/24/2023] [Indexed: 01/30/2024]
Abstract
Cells remodel splicing and translation machineries to mount specialized gene expression responses to stress. Here, we show that hypoxic human cells in 2D and 3D culture models increase the relative abundance of a longer mRNA variant of ribosomal protein S24 (RPS24L) compared to a shorter mRNA variant (RPS24S) by favoring the inclusion of a 22 bp cassette exon. Mechanistically, RPS24L and RPS24S are induced and repressed, respectively, by distinct pathways in hypoxia: RPS24L is induced in an autophagy-dependent manner, while RPS24S is reduced by mTORC1 repression in a hypoxia-inducible factor-dependent manner. RPS24L produces a more stable protein isoform that aids in hypoxic cell survival and growth, which could be exploited by cancer cells in the tumor microenvironment.
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Affiliation(s)
- Jenna Kerry
- Department of Molecular and Cellular Biology, University of Guelph, Canada
| | - Erin J Specker
- Department of Molecular and Cellular Biology, University of Guelph, Canada
| | - Morgan Mizzoni
- Department of Molecular and Cellular Biology, University of Guelph, Canada
| | - Andrea Brumwell
- Department of Molecular and Cellular Biology, University of Guelph, Canada
| | - Leslie Fell
- Department of Molecular and Cellular Biology, University of Guelph, Canada
| | - Jenna Goodbrand
- Department of Molecular and Cellular Biology, University of Guelph, Canada
| | - Michael N Rosen
- Department of Molecular and Cellular Biology, University of Guelph, Canada
| | - James Uniacke
- Department of Molecular and Cellular Biology, University of Guelph, Canada
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3
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Peramangalam PS, Surapally S, Veltri AJ, Zheng S, Burns R, Zhu N, Rao S, Muller-Tidow C, Bushweller JH, Pulikkan JA. N-MYC regulates cell survival via eIF4G1 in inv(16) acute myeloid leukemia. Sci Adv 2024; 10:eadh8493. [PMID: 38416825 PMCID: PMC10901375 DOI: 10.1126/sciadv.adh8493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Accepted: 01/24/2024] [Indexed: 03/01/2024]
Abstract
N-MYC (encoded by MYCN) is a critical regulator of hematopoietic stem cell function. While the role of N-MYC deregulation is well established in neuroblastoma, the importance of N-MYC deregulation in leukemogenesis remains elusive. Here, we demonstrate that N-MYC is overexpressed in acute myeloid leukemia (AML) cells with chromosome inversion inv(16) and contributes to the survival and maintenance of inv(16) leukemia. We identified a previously unknown MYCN enhancer, active in multiple AML subtypes, essential for MYCN mRNA levels and survival in inv(16) AML cells. We also identified eukaryotic translation initiation factor 4 gamma 1 (eIF4G1) as a key N-MYC target that sustains leukemic survival in inv(16) AML cells. The oncogenic role of eIF4G1 in AML has not been reported before. Our results reveal a mechanism whereby N-MYC drives a leukemic transcriptional program and provides a rationale for the therapeutic targeting of the N-MYC/eIF4G1 axis in myeloid leukemia.
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Affiliation(s)
| | - Sridevi Surapally
- Program in Stem Cell Biology and Hematopoiesis, Versiti Blood Research Institute, Milwaukee, WI, USA
| | - Anthony J. Veltri
- Program in Stem Cell Biology and Hematopoiesis, Versiti Blood Research Institute, Milwaukee, WI, USA
| | - Shikan Zheng
- Program in Stem Cell Biology and Hematopoiesis, Versiti Blood Research Institute, Milwaukee, WI, USA
| | - Robert Burns
- Program in Stem Cell Biology and Hematopoiesis, Versiti Blood Research Institute, Milwaukee, WI, USA
| | - Nan Zhu
- Program in Stem Cell Biology and Hematopoiesis, Versiti Blood Research Institute, Milwaukee, WI, USA
- Department of Cell Biology, Neurobiology, and Anatomy, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Sridhar Rao
- Program in Stem Cell Biology and Hematopoiesis, Versiti Blood Research Institute, Milwaukee, WI, USA
- Department of Cell Biology, Neurobiology, and Anatomy, Medical College of Wisconsin, Milwaukee, WI, USA
- Department of Pediatrics, Division of Hematology, Oncology, and Transplantation, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Carsten Muller-Tidow
- Department of Medicine, Hematology, Oncology, University Hospital Heidelberg, Heidelberg, Germany
| | - John H. Bushweller
- Department of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville, VA, USA
| | - John A. Pulikkan
- Program in Stem Cell Biology and Hematopoiesis, Versiti Blood Research Institute, Milwaukee, WI, USA
- Department of Cell Biology, Neurobiology, and Anatomy, Medical College of Wisconsin, Milwaukee, WI, USA
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4
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Ullah MA, Garcillán B, Whitlock E, Figgett WA, Infantino S, Eslami M, Yang S, Rahman MA, Sheng YH, Weber N, Schneider P, Tam CS, Mackay F. An unappreciated cell survival-independent role for BAFF initiating chronic lymphocytic leukemia. Front Immunol 2024; 15:1345515. [PMID: 38469292 PMCID: PMC10927009 DOI: 10.3389/fimmu.2024.1345515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 01/25/2024] [Indexed: 03/13/2024] Open
Abstract
Background Chronic Lymphocytic Leukemia (CLL) is characterized by the expansion of CD19+ CD5+ B cells but its origin remains debated. Mutated CLL may originate from post-germinal center B cells and unmutated CLL from CD5+ mature B cell precursors. Irrespective of precursor types, events initiating CLL remain unknown. The cytokines BAFF and APRIL each play a significant role in CLL cell survival and accumulation, but their involvement in disease initiation remains unclear. Methods We generated novel CLL models lacking BAFF or APRIL. In vivo experiments were conducted to explore the impact of BAFF or APRIL loss on leukemia initiation, progression, and dissemination. Additionally, RNA-seq and quantitative real-time PCR were performed to unveil the transcriptomic signature influenced by BAFF in CLL. The direct role of BAFF in controlling the expression of tumor-promoting genes was further assessed in patient-derived primary CLL cells ex-vivo. Results Our findings demonstrate a crucial role for BAFF, but not APRIL, in the initiation and dissemination of CLL cells. In the absence of BAFF or its receptor BAFF-R, the TCL1 transgene only increases CLL cell numbers in the peritoneal cavity, without dissemination into the periphery. While BAFF binding to BAFF-R is dispensable for peritoneal CLL cell survival, it is necessary to activate a tumor-promoting gene program, potentially linked to CLL initiation and progression. This direct role of BAFF in controlling the expression of tumor-promoting genes was confirmed in patient-derived primary CLL cells ex-vivo. Conclusions Our study, involving both mouse and human CLL cells, suggests that BAFF might initiate CLL through mechanisms independent of cell survival. Combining current CLL therapies with BAFF inhibition could offer a dual benefit by reducing peripheral tumor burden and suppressing transformed CLL cell output.
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Affiliation(s)
- Md Ashik Ullah
- Queensland Institute of Medical Research (QIMR) Berghofer Medical Research Institute, Cancer Program, Herston, QLD, Australia
| | - Beatriz Garcillán
- The Department of Microbiology and Immunology, School of Biomedical Sciences, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Parkville, VIC, Australia
| | - Eden Whitlock
- Queensland Institute of Medical Research (QIMR) Berghofer Medical Research Institute, Cancer Program, Herston, QLD, Australia
| | - William A. Figgett
- The Department of Microbiology and Immunology, School of Biomedical Sciences, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Parkville, VIC, Australia
- Garvan Institute of Medical Research, Kinghorn Centre for Clinical Genomics, Darlinghurst, NSW, Australia
| | - Simona Infantino
- The Department of Microbiology and Immunology, School of Biomedical Sciences, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Parkville, VIC, Australia
| | - Mahya Eslami
- Department of Immunobiology, University of Lausanne, Epalinges, Switzerland
- Department of Oncology and Children’s Research Centre, University Children’s Hospital Zürich, Zürich, Switzerland
| | - SiLing Yang
- Queensland Institute of Medical Research (QIMR) Berghofer Medical Research Institute, Cancer Program, Herston, QLD, Australia
| | - M. Arifur Rahman
- Queensland Institute of Medical Research (QIMR) Berghofer Medical Research Institute, Cancer Program, Herston, QLD, Australia
| | - Yong H. Sheng
- Queensland Institute of Medical Research (QIMR) Berghofer Medical Research Institute, Cancer Program, Herston, QLD, Australia
| | - Nicholas Weber
- Cancer Care Services, Royal Brisbane and Women’s Hospital, Herston, QLD, Australia
| | - Pascal Schneider
- Department of Immunobiology, University of Lausanne, Epalinges, Switzerland
| | - Constantine S. Tam
- Department of Haematology, Alfred Hospital, Melbourne, VIC, Australia
- Department of Haematology, Monash University, Melbourne, VIC, Australia
| | - Fabienne Mackay
- Queensland Institute of Medical Research (QIMR) Berghofer Medical Research Institute, Cancer Program, Herston, QLD, Australia
- The Department of Microbiology and Immunology, School of Biomedical Sciences, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Parkville, VIC, Australia
- The Department of Immunology and Pathology, Monash University, VIC, Australia
- Faculty of Medicine, University of Queensland, Brisbane, QLD, Australia
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Miller MJ, Akter D, Mahmud J, Chan GC. Human cytomegalovirus modulates mTORC1 to redirect mRNA translation within quiescently infected monocytes. J Virol 2024; 98:e0188823. [PMID: 38289104 PMCID: PMC10878035 DOI: 10.1128/jvi.01888-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 12/22/2023] [Indexed: 02/21/2024] Open
Abstract
Human cytomegalovirus (HCMV) utilizes peripheral blood monocytes as a means to systemically disseminate throughout the host. Following viral entry, HCMV stimulates non-canonical Akt signaling leading to the activation of mTORC1 and the subsequent translation of select antiapoptotic proteins within infected monocytes. However, the full extent to which the HCMV-initiated Akt/mTORC1 signaling axis reshapes the monocyte translatome is unclear. We found HCMV entry alone was able to stimulate widescale changes to mRNA translation levels and that inhibition of mTOR, a component of mTORC1, dramatically attenuated HCMV-induced protein synthesis. Although monocytes treated with normal myeloid growth factors also exhibited increased levels of translation, mTOR inhibition had no effect, suggesting HCMV activation of mTOR stimulates the acquisition of a unique translatome within infected monocytes. Indeed, polyribosomal profiling of HCMV-infected monocytes identified distinct prosurvival transcripts that were preferentially loaded with ribosomes when compared to growth factor-treated cells. Sirtuin 1 (SIRT1), a deacetylase that exerts prosurvival effects through regulation of the PI3K/Akt pathway, was found to be highly enriched following HCMV infection in an mTOR-dependent manner. Importantly, SIRT1 inhibition led to the death of HCMV-infected monocytes while having minimal effect on uninfected cells. SIRT1 also supported a positive feedback loop to sustain Akt/mTORC1 signaling following viral entry. Taken together, HCMV profoundly reshapes mRNA translation in an mTOR-dependent manner to enhance the synthesis of select factors necessary for the survival of infected monocytes.IMPORTANCEHuman cytomegalovirus (HCMV) infection is a significant cause of morbidity and mortality among the immunonaïve and immunocompromised. Peripheral blood monocytes are a major cell type responsible for disseminating the virus from the initial site of infection. In order for monocytes to mediate viral spread within the host, HCMV must subvert the naturally short lifespan of these cells. In this study, we performed polysomal profiling analysis, which demonstrated HCMV to globally redirect mRNA translation toward the synthesis of cellular prosurvival factors within infected monocytes. Specifically, HCMV entry into monocytes induced the translation of cellular SIRT1 to generate an antiapoptotic state. Defining the precise mechanisms through which HCMV stimulates survival will provide insight into novel anti-HCMV drugs able to target infected monocytes.
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Affiliation(s)
- Michael J. Miller
- Department of Microbiology and Immunology, SUNY Upstate Medical University, Syracuse, New York, USA
| | - Dilruba Akter
- Department of Microbiology and Immunology, SUNY Upstate Medical University, Syracuse, New York, USA
| | - Jamil Mahmud
- Department of Microbiology and Immunology, SUNY Upstate Medical University, Syracuse, New York, USA
| | - Gary C. Chan
- Department of Microbiology and Immunology, SUNY Upstate Medical University, Syracuse, New York, USA
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6
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Paul PK, Umarvaish S, Bajaj S, S. RF, Mohan H, Annaert W, Chaudhary V. Maintenance of proteostasis by Drosophila Rer1 is essential for competitive cell survival and Myc-driven overgrowth. PLoS Genet 2024; 20:e1011171. [PMID: 38408084 PMCID: PMC10919865 DOI: 10.1371/journal.pgen.1011171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 03/07/2024] [Accepted: 02/05/2024] [Indexed: 02/28/2024] Open
Abstract
Defects in protein homeostasis can induce proteotoxic stress, affecting cellular fitness and, consequently, overall tissue health. In various growing tissues, cell competition based mechanisms facilitate detection and elimination of these compromised, often referred to as 'loser', cells by the healthier neighbors. The precise connection between proteotoxic stress and competitive cell survival remains largely elusive. Here, we reveal the function of an endoplasmic reticulum (ER) and Golgi localized protein Rer1 in the regulation of protein homeostasis in the developing Drosophila wing epithelium. Our results show that loss of Rer1 leads to proteotoxic stress and PERK-mediated phosphorylation of eukaryotic initiation factor 2α. Clonal analysis showed that rer1 mutant cells are identified as losers and eliminated through cell competition. Interestingly, we find that Rer1 levels are upregulated upon Myc-overexpression that causes overgrowth, albeit under high proteotoxic stress. Our results suggest that increased levels of Rer1 provide cytoprotection to Myc-overexpressing cells by alleviating the proteotoxic stress and thereby supporting Myc-driven overgrowth. In summary, these observations demonstrate that Rer1 acts as a novel regulator of proteostasis in Drosophila and reveal its role in competitive cell survival.
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Affiliation(s)
- Pranab Kumar Paul
- Cell and developmental signaling laboratory, Department of Biological Sciences, Indian Institute of Science Education and Research Bhopal, Bhopal, Madhya Pradesh, India
| | - Shruti Umarvaish
- Cell and developmental signaling laboratory, Department of Biological Sciences, Indian Institute of Science Education and Research Bhopal, Bhopal, Madhya Pradesh, India
| | - Shivani Bajaj
- Cell and developmental signaling laboratory, Department of Biological Sciences, Indian Institute of Science Education and Research Bhopal, Bhopal, Madhya Pradesh, India
| | - Rishana Farin S.
- Cell and developmental signaling laboratory, Department of Biological Sciences, Indian Institute of Science Education and Research Bhopal, Bhopal, Madhya Pradesh, India
| | - Hrudya Mohan
- Cell and developmental signaling laboratory, Department of Biological Sciences, Indian Institute of Science Education and Research Bhopal, Bhopal, Madhya Pradesh, India
| | - Wim Annaert
- Laboratory for Membrane Trafficking, VIB-Center for Brain and Disease Research, KU Leuven, Leuven, Belgium, and Department of Neurosciences, KU Leuven, Gasthuisberg, Leuven, Belgium
| | - Varun Chaudhary
- Cell and developmental signaling laboratory, Department of Biological Sciences, Indian Institute of Science Education and Research Bhopal, Bhopal, Madhya Pradesh, India
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7
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Yu X, Li Y, Yang P, Wang Y, Liu X, Cai L, Lai J, Zhang Y, Zha X, Przybylski GK, Xu L, Li Y. BCL11B promotes T-cell acute lymphoblastic leukaemia cell survival via the XRCC5/C11ORF21 axis. Clin Transl Med 2024; 14:e1580. [PMID: 38317587 PMCID: PMC10844840 DOI: 10.1002/ctm2.1580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 01/22/2024] [Accepted: 01/25/2024] [Indexed: 02/07/2024] Open
Affiliation(s)
- Xibao Yu
- The First Affiliated Hospital and Institute of Hematology, School of MedicineJinan UniversityGuangzhouGuangdongChina
- Key Laboratory for Regenerative Medicine of Ministry of EducationJinan UniversityGuangzhouGuangdongChina
- Guangzhou Municipality Tianhe Nuoya Bio‐Engineering Co. Ltd., Guangzhou 510663GuangdongChina
| | - Yuchen Li
- The First Affiliated Hospital and Institute of Hematology, School of MedicineJinan UniversityGuangzhouGuangdongChina
- Key Laboratory for Regenerative Medicine of Ministry of EducationJinan UniversityGuangzhouGuangdongChina
| | - Pengyue Yang
- The First Affiliated Hospital and Institute of Hematology, School of MedicineJinan UniversityGuangzhouGuangdongChina
- Key Laboratory for Regenerative Medicine of Ministry of EducationJinan UniversityGuangzhouGuangdongChina
| | - Yan Wang
- The First Affiliated Hospital and Institute of Hematology, School of MedicineJinan UniversityGuangzhouGuangdongChina
- Key Laboratory for Regenerative Medicine of Ministry of EducationJinan UniversityGuangzhouGuangdongChina
| | - Xuan Liu
- The First Affiliated Hospital and Institute of Hematology, School of MedicineJinan UniversityGuangzhouGuangdongChina
- Key Laboratory for Regenerative Medicine of Ministry of EducationJinan UniversityGuangzhouGuangdongChina
| | - Letong Cai
- The First Affiliated Hospital and Institute of Hematology, School of MedicineJinan UniversityGuangzhouGuangdongChina
- Key Laboratory for Regenerative Medicine of Ministry of EducationJinan UniversityGuangzhouGuangdongChina
| | - Jing Lai
- The First Affiliated Hospital and Institute of Hematology, School of MedicineJinan UniversityGuangzhouGuangdongChina
| | - Yue Zhang
- The First Affiliated Hospital and Institute of Hematology, School of MedicineJinan UniversityGuangzhouGuangdongChina
| | - Xianfeng Zha
- Department of Clinical Laboratory, First Affiliated HospitalJinan UniversityGuangzhouGuangdongChina
| | | | - Ling Xu
- The First Affiliated Hospital and Institute of Hematology, School of MedicineJinan UniversityGuangzhouGuangdongChina
- Key Laboratory for Regenerative Medicine of Ministry of EducationJinan UniversityGuangzhouGuangdongChina
| | - Yangqiu Li
- The First Affiliated Hospital and Institute of Hematology, School of MedicineJinan UniversityGuangzhouGuangdongChina
- Key Laboratory for Regenerative Medicine of Ministry of EducationJinan UniversityGuangzhouGuangdongChina
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8
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Hofman DA, Ruiz-Orera J, Yannuzzi I, Murugesan R, Brown A, Clauser KR, Condurat AL, van Dinter JT, Engels SAG, Goodale A, van der Lugt J, Abid T, Wang L, Zhou KN, Vogelzang J, Ligon KL, Phoenix TN, Roth JA, Root DE, Hubner N, Golub TR, Bandopadhayay P, van Heesch S, Prensner JR. Translation of non-canonical open reading frames as a cancer cell survival mechanism in childhood medulloblastoma. Mol Cell 2024; 84:261-276.e18. [PMID: 38176414 PMCID: PMC10872554 DOI: 10.1016/j.molcel.2023.12.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 08/30/2023] [Accepted: 12/01/2023] [Indexed: 01/06/2024]
Abstract
A hallmark of high-risk childhood medulloblastoma is the dysregulation of RNA translation. Currently, it is unknown whether medulloblastoma dysregulates the translation of putatively oncogenic non-canonical open reading frames (ORFs). To address this question, we performed ribosome profiling of 32 medulloblastoma tissues and cell lines and observed widespread non-canonical ORF translation. We then developed a stepwise approach using multiple CRISPR-Cas9 screens to elucidate non-canonical ORFs and putative microproteins implicated in medulloblastoma cell survival. We determined that multiple lncRNA-ORFs and upstream ORFs (uORFs) exhibited selective functionality independent of main coding sequences. A microprotein encoded by one of these ORFs, ASNSD1-uORF or ASDURF, was upregulated, associated with MYC-family oncogenes, and promoted medulloblastoma cell survival through engagement with the prefoldin-like chaperone complex. Our findings underscore the fundamental importance of non-canonical ORF translation in medulloblastoma and provide a rationale to include these ORFs in future studies seeking to define new cancer targets.
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Affiliation(s)
- Damon A Hofman
- Princess Máxima Center for Pediatric Oncology, Heidelberglaan 25, 3584 CS Utrecht, the Netherlands
| | - Jorge Ruiz-Orera
- Cardiovascular and Metabolic Sciences, Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), 13125 Berlin, Germany
| | - Ian Yannuzzi
- Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | | | - Adam Brown
- Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Karl R Clauser
- Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Alexandra L Condurat
- Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Department of Pediatric Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Jip T van Dinter
- Princess Máxima Center for Pediatric Oncology, Heidelberglaan 25, 3584 CS Utrecht, the Netherlands
| | - Sem A G Engels
- Princess Máxima Center for Pediatric Oncology, Heidelberglaan 25, 3584 CS Utrecht, the Netherlands
| | - Amy Goodale
- Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Jasper van der Lugt
- Princess Máxima Center for Pediatric Oncology, Heidelberglaan 25, 3584 CS Utrecht, the Netherlands
| | - Tanaz Abid
- Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Li Wang
- Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Kevin N Zhou
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Jayne Vogelzang
- Department of Pathology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02215, USA; Department of Pathology, Brigham and Women's Hospital, Boston, MA 02215, USA
| | - Keith L Ligon
- Department of Pathology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02215, USA; Department of Pathology, Brigham and Women's Hospital, Boston, MA 02215, USA; Department of Pathology, Boston Children's Hospital, Boston MA 02115, USA
| | - Timothy N Phoenix
- Division of Pharmaceutical Sciences, James L. Winkle College of Pharmacy, University of Cincinnati, Cincinnati, OH 45229, USA
| | - Jennifer A Roth
- Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - David E Root
- Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Norbert Hubner
- Cardiovascular and Metabolic Sciences, Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), 13125 Berlin, Germany; Charité-Universitätsmedizin, 10117 Berlin, Germany; German Centre for Cardiovascular Research, Partner Site Berlin, 13347 Berlin, Germany
| | - Todd R Golub
- Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Department of Pediatric Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Division of Pediatric Hematology/Oncology, Boston Children's Hospital, Boston, MA 02115, USA
| | - Pratiti Bandopadhayay
- Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Department of Pediatric Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Division of Pediatric Hematology/Oncology, Boston Children's Hospital, Boston, MA 02115, USA
| | - Sebastiaan van Heesch
- Princess Máxima Center for Pediatric Oncology, Heidelberglaan 25, 3584 CS Utrecht, the Netherlands.
| | - John R Prensner
- Department of Pediatrics, Division of Pediatric Hematology/Oncology and Biological Chemistry, University of Michigan Medical School, Ann Arbor, MI 48109, USA.
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9
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Sreekumar A, Lu M, Choudhury B, Pan TC, Pant DK, Lawrence-Paul MR, Sterner CJ, Belka GK, Toriumi T, Benz BA, Escobar-Aguirre M, Marino FE, Esko JD, Chodosh LA. B3GALT6 promotes dormant breast cancer cell survival and recurrence by enabling heparan sulfate-mediated FGF signaling. Cancer Cell 2024; 42:52-69.e7. [PMID: 38065100 PMCID: PMC10872305 DOI: 10.1016/j.ccell.2023.11.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 08/22/2023] [Accepted: 11/14/2023] [Indexed: 01/11/2024]
Abstract
Breast cancer mortality results from incurable recurrences thought to be seeded by dormant, therapy-refractory residual tumor cells (RTCs). Understanding the mechanisms enabling RTC survival is therefore essential for improving patient outcomes. Here, we derive a dormancy-associated RTC signature that mirrors the transcriptional response to neoadjuvant therapy in patients and is enriched for extracellular matrix-related pathways. In vivo CRISPR-Cas9 screening of dormancy-associated candidate genes identifies the galactosyltransferase B3GALT6 as a functional regulator of RTC fitness. B3GALT6 is required for glycosaminoglycan (GAG) linkage to proteins to generate proteoglycans, and its germline loss of function in patients causes skeletal dysplasias. We find that B3GALT6-mediated biosynthesis of heparan sulfate GAGs predicts poor patient outcomes and promotes tumor recurrence by enhancing dormant RTC survival in multiple contexts, and does so via a B3GALT6-heparan sulfate/HS6ST1-heparan 6-O-sulfation/FGF1-FGFR2 signaling axis. These findings implicate B3GALT6 in cancer and nominate FGFR2 inhibition as a promising approach to eradicate dormant RTCs and prevent recurrence.
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Affiliation(s)
- Amulya Sreekumar
- Department of Cancer Biology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA; Abramson Family Cancer Research Institute, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Michelle Lu
- Department of Cancer Biology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA; Abramson Family Cancer Research Institute, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Biswa Choudhury
- Department of Cellular and Molecular Medicine, Glycobiology Research and Training Center, University of California, San Diego, La Jolla, CA 92093, USA
| | - Tien-Chi Pan
- Department of Cancer Biology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA; Abramson Family Cancer Research Institute, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Dhruv K Pant
- Department of Cancer Biology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA; Abramson Family Cancer Research Institute, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Matthew R Lawrence-Paul
- Department of Cancer Biology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA; Abramson Family Cancer Research Institute, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Christopher J Sterner
- Department of Cancer Biology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA; Abramson Family Cancer Research Institute, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA
| | - George K Belka
- Department of Cancer Biology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA; Abramson Family Cancer Research Institute, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Takashi Toriumi
- Department of Cancer Biology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA; Abramson Family Cancer Research Institute, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Brian A Benz
- Department of Cancer Biology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA; Abramson Family Cancer Research Institute, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Matias Escobar-Aguirre
- Department of Cancer Biology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA; Abramson Family Cancer Research Institute, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Francesco E Marino
- Department of Cancer Biology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA; Abramson Family Cancer Research Institute, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Jeffrey D Esko
- Department of Cellular and Molecular Medicine, Glycobiology Research and Training Center, University of California, San Diego, La Jolla, CA 92093, USA
| | - Lewis A Chodosh
- Department of Cancer Biology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA; Abramson Family Cancer Research Institute, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA; Department of Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA.
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10
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Grossi S, Berno E, Chiofalo P, Chiaravalli AM, Cinquetti R, Bruno A, Palano MT, Gallazzi M, La Rosa S, Sessa F, Acquati F, Campomenosi P. Proline Dehydrogenase (PRODH) Is Expressed in Lung Adenocarcinoma and Modulates Cell Survival and 3D Growth by Inducing Cellular Senescence. Int J Mol Sci 2024; 25:714. [PMID: 38255788 PMCID: PMC10815008 DOI: 10.3390/ijms25020714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 12/30/2023] [Accepted: 01/02/2024] [Indexed: 01/24/2024] Open
Abstract
The identification of markers for early diagnosis, prognosis, and improvement of therapeutic options represents an unmet clinical need to increase survival in Non-Small Cell Lung Cancer (NSCLC), a neoplasm still characterized by very high incidence and mortality. Here, we investigated whether proline dehydrogenase (PRODH), a mitochondrial flavoenzyme catalyzing the key step in proline degradation, played a role in NSCLC tumorigenesis. PRODH expression was investigated by immunohistochemistry; digital PCR, quantitative PCR, immunoblotting, measurement of reactive oxygen species (ROS), and functional cellular assays were carried out. PRODH expression was found in the majority of lung adenocarcinomas (ADCs). Patients with PRODH-positive tumors had better cancer-free specific and overall survival compared to those with negative tumors. Ectopic modulation of PRODH expression in NCI-H1299 and the other tested lung ADC cell lines decreased cell survival. Moreover, cell proliferation curves showed delayed growth in NCI-H1299, Calu-6 and A549 cell lines when PRODH-expressing clones were compared to control clones. The 3D growth in soft agar was also impaired in the presence of PRODH. PRODH increased reactive oxygen species production and induced cellular senescence in the NCI-H1299 cell line. This study supports a role of PRODH in decreasing survival and growth of lung ADC cells by inducing cellular senescence.
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Affiliation(s)
- Sarah Grossi
- Dipartimento di Biotecnologie e Scienze della Vita, DBSV, Università degli Studi dell’Insubria, Via J.H. Dunant 3, 21100 Varese, Italy; (S.G.); (E.B.); (P.C.); (R.C.); (A.B.); (F.A.)
| | - Elena Berno
- Dipartimento di Biotecnologie e Scienze della Vita, DBSV, Università degli Studi dell’Insubria, Via J.H. Dunant 3, 21100 Varese, Italy; (S.G.); (E.B.); (P.C.); (R.C.); (A.B.); (F.A.)
| | - Priscilla Chiofalo
- Dipartimento di Biotecnologie e Scienze della Vita, DBSV, Università degli Studi dell’Insubria, Via J.H. Dunant 3, 21100 Varese, Italy; (S.G.); (E.B.); (P.C.); (R.C.); (A.B.); (F.A.)
| | - Anna Maria Chiaravalli
- Unità di Anatomia Patologica, Ospedale di Circolo e Fondazione Macchi, Via O. Rossi 9, 21100 Varese, Italy; (A.M.C.); (S.L.R.); (F.S.)
- Centro di Ricerca per lo Studio dei Tumori Eredo-Famigliari, Università degli Studi dell’Insubria, 21100 Varese, Italy
| | - Raffaella Cinquetti
- Dipartimento di Biotecnologie e Scienze della Vita, DBSV, Università degli Studi dell’Insubria, Via J.H. Dunant 3, 21100 Varese, Italy; (S.G.); (E.B.); (P.C.); (R.C.); (A.B.); (F.A.)
| | - Antonino Bruno
- Dipartimento di Biotecnologie e Scienze della Vita, DBSV, Università degli Studi dell’Insubria, Via J.H. Dunant 3, 21100 Varese, Italy; (S.G.); (E.B.); (P.C.); (R.C.); (A.B.); (F.A.)
- Laboratorio di Immunità Innata, Unità di Patologia Molecolare, Biochimica, e Immunologia, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) MultiMedica, Via Fantoli 16/15, 20138 Milan, Italy; (M.T.P.); (M.G.)
- Centro di Ricerca per l’Invecchiamento di Successo (CRIS), Università degli Studi dell’Insubria, 21100 Varese, Italy
| | - Maria Teresa Palano
- Laboratorio di Immunità Innata, Unità di Patologia Molecolare, Biochimica, e Immunologia, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) MultiMedica, Via Fantoli 16/15, 20138 Milan, Italy; (M.T.P.); (M.G.)
| | - Matteo Gallazzi
- Laboratorio di Immunità Innata, Unità di Patologia Molecolare, Biochimica, e Immunologia, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) MultiMedica, Via Fantoli 16/15, 20138 Milan, Italy; (M.T.P.); (M.G.)
| | - Stefano La Rosa
- Unità di Anatomia Patologica, Ospedale di Circolo e Fondazione Macchi, Via O. Rossi 9, 21100 Varese, Italy; (A.M.C.); (S.L.R.); (F.S.)
- Centro di Ricerca per lo Studio dei Tumori Eredo-Famigliari, Università degli Studi dell’Insubria, 21100 Varese, Italy
- Dipartimento di Medicina e Innovazione Tecnologica, DIMIT, Università degli Studi dell’Insubria, Via Guicciardini 9, 21100 Varese, Italy
| | - Fausto Sessa
- Unità di Anatomia Patologica, Ospedale di Circolo e Fondazione Macchi, Via O. Rossi 9, 21100 Varese, Italy; (A.M.C.); (S.L.R.); (F.S.)
- Dipartimento di Medicina e Innovazione Tecnologica, DIMIT, Università degli Studi dell’Insubria, Via Guicciardini 9, 21100 Varese, Italy
| | - Francesco Acquati
- Dipartimento di Biotecnologie e Scienze della Vita, DBSV, Università degli Studi dell’Insubria, Via J.H. Dunant 3, 21100 Varese, Italy; (S.G.); (E.B.); (P.C.); (R.C.); (A.B.); (F.A.)
- Centro di Ricerca per l’Invecchiamento di Successo (CRIS), Università degli Studi dell’Insubria, 21100 Varese, Italy
| | - Paola Campomenosi
- Dipartimento di Biotecnologie e Scienze della Vita, DBSV, Università degli Studi dell’Insubria, Via J.H. Dunant 3, 21100 Varese, Italy; (S.G.); (E.B.); (P.C.); (R.C.); (A.B.); (F.A.)
- Centro di Ricerca per l’Invecchiamento di Successo (CRIS), Università degli Studi dell’Insubria, 21100 Varese, Italy
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11
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Wu T, Liu S, Chen W, Zhao D, Lu Z. Huaier suppresses cell viability, migration and invasion in human non-small cell lung cancer via lncRNA DLEU2/miR-212-5p/ELF3 axis. Int J Med Sci 2024; 21:319-331. [PMID: 38169645 PMCID: PMC10758155 DOI: 10.7150/ijms.89308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Accepted: 11/08/2023] [Indexed: 01/05/2024] Open
Abstract
Accumulating studies suggest that Huaier exerts anti-tumor effects through intricate mechanisms. Despite extensive research on its efficacy in lung cancer, further investigation is required to elucidate the molecular mechanism of Huaier. The involvement of long noncoding RNAs (lncRNAs) in the anti-lung cancer effects of Huaier remains unknown. In this study, we found Huaier suppressed cell viability, migration and invasion in non-small cell lung cancer (NSCLC) cells. LncRNA sequencing analysis revealed Deleted in lymphocytic leukemia 2 (DLEU2) to be significantly downregulated in Huaier-treated NSCLC cells. Furthermore, DLEU2 silencing was observed to suppress NSCLC progression, while DLEU2 overexpression attenuated the anti-tumor effects of Huaier in NSCLC, thereby promoting cell viability, migration and invasion of NSCLC. The ceRNA role of DLEU2 had been demonstrated in NSCLC, which directly interacted with miR-212-5p to rescue the repression of E74 Like ETS Transcription Factor 3 (ELF3) by this microRNA. Additionally, Huaier was found to regulate the expression of miR-212-5p and ELF3. Functionally, miR-212-5p inhibitor or ELF3 overexpression reversed the effects of DLEU2 silencing or Huaier treatment, resulting in increased colony formation, migration and invasion in NSCLC. Taken together, these results illuminate the mechanism underlying Huaier's anti-tumor effects via the DLEU2/miR-212-5p/ELF3 signaling pathway, which offers novel insights into the anti-tumor effects of Huaier and constitutes a promising therapeutic target for the treatment in NSCLC.
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Affiliation(s)
- Tangwei Wu
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, China
- Department of Medical Laboratory, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430014, China
| | - Shuiyi Liu
- Department of Medical Laboratory, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430014, China
| | - Weiqun Chen
- Key Laboratory for Molecular Diagnosis of Hubei Province, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430014, China
- Cancer Research Institute of Wuhan, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430014, China
| | - Dan Zhao
- Department of Medical Laboratory, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430014, China
- School of Laboratory Medicine, Hubei University of Chinese Medicine, Wuhan 430065, China
| | - Zhongxin Lu
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, China
- Department of Medical Laboratory, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430014, China
- Key Laboratory for Molecular Diagnosis of Hubei Province, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430014, China
- Cancer Research Institute of Wuhan, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430014, China
- School of Laboratory Medicine, Hubei University of Chinese Medicine, Wuhan 430065, China
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12
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He P, Liu Z, Qi J, Shan J, Sheng J. Long noncoding RNA LINC00885 upregulates NCK1 to promote cell viability and migration of triple-negative breast cancer cells through sponging miR-654-3p. Cancer Biomark 2024; 39:63-78. [PMID: 37694355 DOI: 10.3233/cbm-230143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Abstract
BACKGROUND LINC00885 is a novel oncogenic long noncoding RNA (LncRNA) which is upregulated in various types of cancer, but its function in triple-negative breast cancer (TNBC) remains unknown. OBJECTIVE This study aimed to determine the role of LINC00885 on TNBC development. METHODS Clinical interrelation and survival analysis were determined using online database. The CCK-8 and Transwell assays were used to detect the proliferation and migration behaviors in TNBC cell lines. The interaction among genes was detected by RNA pull down assay. RESULTS LncRNA LINC00885 was highly expressed in TNBC compared to normal breast like. Low levels of LINC00885 was related to good prognosis in TNBC patients compared to TNBC patients with high LINC00885. LINC00885-downregulation inhibited, whereas LINC00885-overexpression promoted the proliferation and migration capability of TNBC cell lines. In TNBC cell lines, noncatalytic region of tyrosine kinase 1 (NCK1) expression was positively associated with LINC00885 expression, and shRNA-mediated the depletion of NCK1 significantly abolished LINC00885 upregulation-mediated pro-tumor effects. Combined with online databases, miR-654-3p was screened as the direct target gene of LINC00885, which could directly bind to 3'-untranslated regions (3'-UTR) of NCK1, resulting in the decreased expression of NCK1 in TNBC cell lines. LINC00885 overexpression-mediated the upregulation of NCK1 was abrogated by miR-654-3p mimics. MiR-654-3p mimics significantly rescued the tumor promotive role caused by LINC00885-overexpression. However, exogenous NCK1 notably eliminated the anti-tumor effects caused by miR-654-3p mimics in LINC00885-overexpressed cells. CONCLUSIONS LINC00885 is expressed at a high level in TNBC. LINC00885 promoted proliferation and migration by regulating the miR-654-3p/NCK1 axis in TNBC cell lines. Possibly, LINC00885 can be served as a potential therapeutic target for TNBC.
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Affiliation(s)
- Peina He
- Department of Medicine, Pingdingshan University, Pingdingshan, Henan, China
| | - Zhi Liu
- Department of Medicine, Pingdingshan University, Pingdingshan, Henan, China
| | - Jinxu Qi
- Department of Medicine, Pingdingshan University, Pingdingshan, Henan, China
| | - Junrao Shan
- Department of Medicine, Pingdingshan University, Pingdingshan, Henan, China
| | - Jianyun Sheng
- Department of Gynecotokology, The First People's Hospital of Pingdingshan, Pingdingshan, Henan, China
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13
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Li C, Fu Y, He Y, Huang N, Yue J, Miao Y, Lv J, Xiao Y, Deng R, Zhang C, Huang M. Knockdown of LINC00511 enhances radiosensitivity of lung adenocarcinoma via regulating miR-497-5p/SMAD3. Cancer Biol Ther 2023; 24:2165896. [PMID: 36861928 PMCID: PMC9988350 DOI: 10.1080/15384047.2023.2165896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2023] Open
Abstract
As the most common histological subtype of primary lung cancer, lung adenocarcinoma (LUAD) causes enormous cancer deaths worldwide. Radiotherapy has been frequently used in LUAD cases, and radiosensitivity is vital for LUAD therapy. This research sought to explore the genetic factors affecting radiosensitivity in LUAD and inner mechanisms. LINC00511, miR-497-5p, and SMAD3 expression in LUAD cells were detected via qRT-PCR and western blot. CCK-8 assays, colony formation, and flow cytometry assays were employed to explore the cell viability, apoptosis, and radiosensitivity in PC-9 and A549 cells. The targeting relationship between LINC00511, miR-497-5p, and SMAD3 was verified by dual luciferase reporter assay. Furthermore, xenograft experiments were performed for the in vivo verification. In conclusion, LINC00511 was overexpressed in LUAD cells, which downregulated downstream miR-497-5p expression and mediately led to SMAD3 activation. LINC00511 downregulation suppressed cell viability while enhanced apoptosis rate in LUAD cells. Also, LINC00511 and SMAD3 were overexpressed, while miR-497-5p was downregulated in LUAD cells exposed to 4Gy irradiation treatment. Moreover, LINC00511 inhibition could block SMAD3 expression and promoted the radiosensitivity both in vitro and in vivo. These findings uncover LINC00511 knockdown promoted miR-497-5p expression and subsequently led to lower SMAD3 level, which enhanced radiosensitivity in LUAD cells. LINC00511/miR-497-5p/SMAD3 axis could be of considerable potential to enhance radiosensitivity in LUAD.
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Affiliation(s)
- Chongxin Li
- Department of Oncology, the First People’s Hospital of Qujing/The Qujing Affiliated Hospital of Kunming Medical University, Qujing, P.R. China
| | - Yanyan Fu
- Department of Oncology, the First People’s Hospital of Qujing/The Qujing Affiliated Hospital of Kunming Medical University, Qujing, P.R. China
| | - Yongmei He
- Department of Oncology, the First People’s Hospital of Qujing/The Qujing Affiliated Hospital of Kunming Medical University, Qujing, P.R. China
| | - Nan Huang
- Department of Pulmonary, the Shizong Hospital of First People’s Hospital in Qujing, Qujing, P.R. China
| | - Jun Yue
- Department of Oncology, the First People’s Hospital of Qujing/The Qujing Affiliated Hospital of Kunming Medical University, Qujing, P.R. China
| | - Yi Miao
- Department of Oncology, the First People’s Hospital of Qujing/The Qujing Affiliated Hospital of Kunming Medical University, Qujing, P.R. China
| | - Jialing Lv
- Department of Oncology, the First People’s Hospital of Qujing/The Qujing Affiliated Hospital of Kunming Medical University, Qujing, P.R. China
| | - Youchuan Xiao
- Department of Oncology, the First People’s Hospital of Qujing/The Qujing Affiliated Hospital of Kunming Medical University, Qujing, P.R. China
| | - Ruoyu Deng
- Department of Oncology, the First People’s Hospital of Qujing/The Qujing Affiliated Hospital of Kunming Medical University, Qujing, P.R. China
| | - Chao Zhang
- Department of Oncology, the First People’s Hospital of Qujing/The Qujing Affiliated Hospital of Kunming Medical University, Qujing, P.R. China
- CONTACT Chao zhang
| | - Meifang Huang
- Department of Oncology, the First People’s Hospital of Qujing/The Qujing Affiliated Hospital of Kunming Medical University, Qujing, P.R. China
- Meifang Huang Department of Surgical Oncology, the First People’s Hospital of Qujing/The Qujing Affiliated Hospital of Kunming Medical University, Qujing, Yunnan655000, P.R. China
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14
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Cao M, Lai P, Liu X, Liu F, Qin Y, Tu P, Wang Y. ATF5 promotes malignant T cell survival through the PI3K/AKT/mTOR pathway in cutaneous T cell lymphoma. Front Immunol 2023; 14:1282996. [PMID: 38223508 PMCID: PMC10786347 DOI: 10.3389/fimmu.2023.1282996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 12/08/2023] [Indexed: 01/16/2024] Open
Abstract
Backgrounds Cutaneous T cell lymphoma (CTCL) is a non-Hodgkin lymphoma characterized by skin infiltration of malignant T cells. The biological overlap between malignant T cells and their normal counterparts has brought obstacles in identifying tumor-specific features and mechanisms, limiting current knowledge of CTCL pathogenesis. Transcriptional dysregulation leading to abnormal gene expression profiles contributes to the initiation, progression and drug resistance of cancer. Therefore, we aimed to identify tumor-specific transcription factor underlying CTCL pathology. Methods We analyzed and validated the differentially expressed genes (DEGs) in malignant T cells based on single-cell sequencing data. Clinical relevance was evaluated based on progression-free survival and time to next treatment. To determine the functional importance, lentivirus-mediated gene knockdown was conducted in two CTCL cell lines Myla and H9. Cell survival was assessed by examining cell viability, colony-forming ability, in-vivo tumor growth in xenograft models, apoptosis rate and cell-cycle distribution. RNA sequencing was employed to investigate the underlying mechanisms. Results Activating transcription factor 5 (ATF5) was overexpressed in malignant T cells and positively correlated with poor treatment responses in CTCL patients. Mechanistically, ATF5 promoted the survival of malignant T cells partially through the PI3K/AKT/mTOR pathway, and imparted resistance to endoplasmic reticulum (ER) stress-induced apoptosis. Conclusions These findings revealed the tumor-specific overexpression of the transcription factor ATF5 with its underlying mechanisms in promoting tumor survival in CTCL, providing new insight into the understanding of CTCL's pathology.
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Affiliation(s)
- Mengzhou Cao
- Department of Dermatology and Venereology, Peking University First Hospital, Beijing, China
- Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, Beijing, China
- National Clinical Research Center for Skin and Immune Diseases, Beijing, China
| | - Pan Lai
- Department of Dermatology and Venereology, Peking University First Hospital, Beijing, China
- Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, Beijing, China
- National Clinical Research Center for Skin and Immune Diseases, Beijing, China
| | - Xiangjun Liu
- Department of Dermatology and Venereology, Peking University First Hospital, Beijing, China
- Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, Beijing, China
- National Clinical Research Center for Skin and Immune Diseases, Beijing, China
| | - Fengjie Liu
- Department of Dermatology and Venereology, Peking University First Hospital, Beijing, China
- Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, Beijing, China
- National Clinical Research Center for Skin and Immune Diseases, Beijing, China
| | - Yao Qin
- Department of Dermatology and Venereology, Peking University First Hospital, Beijing, China
- Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, Beijing, China
- National Clinical Research Center for Skin and Immune Diseases, Beijing, China
| | - Ping Tu
- Department of Dermatology and Venereology, Peking University First Hospital, Beijing, China
- Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, Beijing, China
- National Clinical Research Center for Skin and Immune Diseases, Beijing, China
| | - Yang Wang
- Department of Dermatology and Venereology, Peking University First Hospital, Beijing, China
- Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, Beijing, China
- National Clinical Research Center for Skin and Immune Diseases, Beijing, China
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15
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Vasilopoulos SN, Güner H, Uça Apaydın M, Pavlopoulou A, Georgakilas AG. Dual Targeting of DNA Damage Response Proteins Implicated in Cancer Radioresistance. Genes (Basel) 2023; 14:2227. [PMID: 38137049 PMCID: PMC10742610 DOI: 10.3390/genes14122227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Revised: 12/13/2023] [Accepted: 12/13/2023] [Indexed: 12/24/2023] Open
Abstract
Ionizing radiation can induce different types of DNA lesions, leading to genomic instability and ultimately cell death. Radiation therapy or radiotherapy, a major modality in cancer treatment, harnesses the genotoxic potential of radiation to target and destroy cancer cells. Nevertheless, cancer cells have the capacity to develop resistance to radiation treatment (radioresistance), which poses a major obstacle in the effective management of cancer. It has been shown that administration of platinum-based drugs to cancer patients can increase tumor radiosensitivity, but despite this, it is associated with severe adverse effects. Several lines of evidence support that activation of the DNA damage response and repair machinery in the irradiated cancer cells enhances radioresistance and cellular survival through the efficient repair of DNA lesions. Therefore, targeting of key DNA damage repair factors would render cancer cells vulnerable to the irradiation effects, increase cancer cell killing, and reduce the risk of side effects on healthy tissue. Herein, we have employed a computer-aided drug design approach for generating ab initio a chemical compound with drug-like properties potentially targeting two proteins implicated in multiple DNA repair pathways. The findings of this study could be taken into consideration in clinical decision-making in terms of co-administering radiation with DNA damage repair factor-based drugs.
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Affiliation(s)
- Spyridon N. Vasilopoulos
- DNA Damage Laboratory, Physics Department, School of Applied Mathematical and Physical Sciences, National Technical University of Athens (NTUA), Zografou Campus, 15780 Athens, Greece;
- Department of Science and Mathematics, Deree-The American College of Greece, 6 Gravias Street, 15342 Athens, Greece
| | - Hüseyin Güner
- Izmir Biomedicine and Genome Center (IBG), 35340 Izmir, Turkey; (H.G.); (M.U.A.)
- Izmir International Biomedicine and Genome Institute, Dokuz Eylül University, 35340 Izmir, Turkey
- Department of Molecular Biology and Genetics, Faculty of Life and Natural Science, Abdullah Gül University, 38080 Kayseri, Turkey
| | - Merve Uça Apaydın
- Izmir Biomedicine and Genome Center (IBG), 35340 Izmir, Turkey; (H.G.); (M.U.A.)
- Izmir International Biomedicine and Genome Institute, Dokuz Eylül University, 35340 Izmir, Turkey
| | - Athanasia Pavlopoulou
- Izmir Biomedicine and Genome Center (IBG), 35340 Izmir, Turkey; (H.G.); (M.U.A.)
- Izmir International Biomedicine and Genome Institute, Dokuz Eylül University, 35340 Izmir, Turkey
| | - Alexandros G. Georgakilas
- DNA Damage Laboratory, Physics Department, School of Applied Mathematical and Physical Sciences, National Technical University of Athens (NTUA), Zografou Campus, 15780 Athens, Greece;
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16
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Danan CH, Naughton KE, Hayer KE, Vellappan S, McMillan EA, Zhou Y, Matsuda R, Nettleford SK, Katada K, Parham LR, Ma X, Chowdhury A, Wilkins BJ, Shah P, Weitzman MD, Hamilton KE. Intestinal transit-amplifying cells require METTL3 for growth factor signaling and cell survival. JCI Insight 2023; 8:e171657. [PMID: 37883185 PMCID: PMC10795831 DOI: 10.1172/jci.insight.171657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 10/25/2023] [Indexed: 10/27/2023] Open
Abstract
Intestinal epithelial transit-amplifying cells are essential stem progenitors required for intestinal homeostasis, but their rapid proliferation renders them vulnerable to DNA damage from radiation and chemotherapy. Despite these cells' critical roles in intestinal homeostasis and disease, few studies have described genes that are essential to transit-amplifying cell function. We report that RNA methyltransferase-like 3 (METTL3) is required for survival of transit-amplifying cells in the murine small intestine. Transit-amplifying cell death after METTL3 deletion was associated with crypt and villus atrophy, loss of absorptive enterocytes, and uniform wasting and death in METTL3-depleted mice. Sequencing of polysome-bound and methylated RNAs in enteroids and in vivo demonstrated decreased translation of hundreds of methylated transcripts after METTL3 deletion, particularly transcripts involved in growth factor signal transduction such as Kras. Further investigation verified a relationship between METTL3 and Kras methylation and protein levels in vivo. Our study identifies METTL3 as an essential factor supporting the homeostasis of small intestinal tissue via direct maintenance of transit-amplifying cell survival. We highlight the crucial role of RNA modifications in regulating growth factor signaling in the intestine with important implications for both homeostatic tissue renewal and epithelial regeneration.
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Affiliation(s)
- Charles H. Danan
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Children’s Hospital of Philadelphia, Perelman School of Medicine
- Medical Scientist Training Program, Perelman School of Medicine; and
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Kaitlyn E. Naughton
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Children’s Hospital of Philadelphia, Perelman School of Medicine
| | - Katharina E. Hayer
- Department of Biomedical and Health Informatics, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Division of Protective Immunity, Children’s Hospital of Philadelphia Research Institute, Philadelphia, Pennsylvania, USA
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine; University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Sangeevan Vellappan
- Waksman Institute of Microbiology and
- Department of Genetics, Rutgers University, Piscataway, New Jersey, USA
- Human Genetics Institute of New Jersey, Piscataway, New Jersey, USA
| | - Emily A. McMillan
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Children’s Hospital of Philadelphia, Perelman School of Medicine
| | - Yusen Zhou
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Children’s Hospital of Philadelphia, Perelman School of Medicine
- Department of Biomedical and Health Informatics, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Rina Matsuda
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
- Department of Pathobiology, School of Veterinary Medicine, and
| | - Shaneice K. Nettleford
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Children’s Hospital of Philadelphia, Perelman School of Medicine
| | - Kay Katada
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Children’s Hospital of Philadelphia, Perelman School of Medicine
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Louis R. Parham
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Children’s Hospital of Philadelphia, Perelman School of Medicine
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Xianghui Ma
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Children’s Hospital of Philadelphia, Perelman School of Medicine
| | - Afrah Chowdhury
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Children’s Hospital of Philadelphia, Perelman School of Medicine
| | - Benjamin J. Wilkins
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine; University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Premal Shah
- Department of Genetics, Rutgers University, Piscataway, New Jersey, USA
- Human Genetics Institute of New Jersey, Piscataway, New Jersey, USA
| | - Matthew D. Weitzman
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
- Division of Protective Immunity, Children’s Hospital of Philadelphia Research Institute, Philadelphia, Pennsylvania, USA
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine; University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Kathryn E. Hamilton
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Children’s Hospital of Philadelphia, Perelman School of Medicine
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
- Institute for Regenerative Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
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17
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Zhu W, Ye B, Yang S, Li Y. USP10 promotes intrahepatic cholangiocarcinoma cell survival and stemness via SNAI1 deubiquitination. J Mol Histol 2023; 54:703-714. [PMID: 37755617 DOI: 10.1007/s10735-023-10150-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 08/26/2023] [Indexed: 09/28/2023]
Abstract
Cancer cell stemness contributes significantly to intrahepatic cholangiocarcinoma (ICC) progression. However, the roles of deubiquitinating enzymes (DUBs) in ICC modulation are poorly understood. Ubiquitin specific peptidase 10 (USP10) was highly expressed in ICC spheres. The interaction between USP10 and snail family transcriptional repressor 1 (SNAI1) reduced the polyubiquitination of the SNAI1 protein and stabilized the SNAI1 protein. USP10 knockdown in RBE cells inhibited cell proliferation, promoted cell apoptosis and decreased the diameter of the formed spheres and the expression levels of CD44, EpCAM, OCT4 and SOX2. SNAI1 overexpression alleviated the effect of USP10 knockdown in RBE cells. In addition, the knockdown of USP10 attenuated the ability of RBE cells to form tumors subcutaneously in nude mice. Our results revealed that USP10 attenuates ICC cell malignancy by deubiquitinating SNAI1, indicating that USP10 could be developed as a therapeutic target for ICC treatment.
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Affiliation(s)
- Wanlin Zhu
- Department of Gastroenterology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, Zhejiang, China
- Department of Gastroenterology, The Fifth Affiliated Hospital of Wenzhou Medical University, Lishui, 323000, Zhejiang, China
| | - Bin Ye
- Department of Gastroenterology, The Fifth Affiliated Hospital of Wenzhou Medical University, Lishui, 323000, Zhejiang, China
| | - Shangwen Yang
- Department of Gastroenterology, The Fifth Affiliated Hospital of Wenzhou Medical University, Lishui, 323000, Zhejiang, China
| | - Youming Li
- Department of Gastroenterology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, Zhejiang, China.
- , No. 79 Qingchun Road, Hangzhou, 310003, Zhejiang, China.
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18
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Bitter EE, Skidmore J, Allen CI, Erickson RI, Morris RM, Mortimer T, Meade A, Brog R, Phares T, Townsend M, Pickett BE, O’Neill KL. TK1 expression influences pathogenicity by cell cycle progression, cellular migration, and cellular survival in HCC 1806 breast cancer cells. PLoS One 2023; 18:e0293128. [PMID: 38033034 PMCID: PMC10688958 DOI: 10.1371/journal.pone.0293128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 10/05/2023] [Indexed: 12/02/2023] Open
Abstract
Breast cancer is the most common cancer diagnosis worldwide accounting for 1 out of every 8 cancer diagnoses. The elevated expression of Thymidine Kinase 1 (TK1) is associated with more aggressive tumor grades, including breast cancer. Recent studies indicate that TK1 may be involved in cancer pathogenesis; however, its direct involvement in breast cancer has not been identified. Here, we evaluate potential pathogenic effects of elevated TK1 expression by comparing HCC 1806 to HCC 1806 TK1-knockdown cancer cells (L133). Transcriptomic profiles of HCC 1806 and L133 cells showed cell cycle progression, apoptosis, and invasion as potential pathogenic pathways affected by TK1 expression. Subsequent in-vitro studies confirmed differences between HCC 1806 and L133 cells in cell cycle phase progression, cell survival, and cell migration. Expression comparison of several factors involved in these pathogenic pathways between HCC 1806 and L133 cells identified p21 and AKT3 transcripts were significantly affected by TK1 expression. Creation of a protein-protein interaction map of TK1 and the pathogenic factors we evaluated predict that the majority of factors evaluated either directly or indirectly interact with TK1. Our findings argue that TK1 elevation directly increases HCC 1806 cell pathogenicity and is likely occurring by p21- and AKT3-mediated mechanisms to promote cell cycle arrest, cellular migration, and cellular survival.
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Affiliation(s)
- Eliza E. Bitter
- Department of Microbiology and Molecular Biology, Brigham Young University, Provo, Utah, United States of America
- Thunder Biotech Inc., Provo, Utah, United States of America
| | - Jonathan Skidmore
- Department of Microbiology and Molecular Biology, Brigham Young University, Provo, Utah, United States of America
| | - Carolyn I. Allen
- Department of Microbiology and Molecular Biology, Brigham Young University, Provo, Utah, United States of America
| | - Rachel I. Erickson
- Department of Microbiology and Molecular Biology, Brigham Young University, Provo, Utah, United States of America
| | - Rachel M. Morris
- Department of Microbiology and Molecular Biology, Brigham Young University, Provo, Utah, United States of America
| | - Toni Mortimer
- Department of Microbiology and Molecular Biology, Brigham Young University, Provo, Utah, United States of America
| | - Audrey Meade
- Thunder Biotech Inc., Provo, Utah, United States of America
| | - Rachel Brog
- Thunder Biotech Inc., Provo, Utah, United States of America
| | - Tim Phares
- Thunder Biotech Inc., Provo, Utah, United States of America
| | - Michelle Townsend
- Department of Microbiology and Molecular Biology, Brigham Young University, Provo, Utah, United States of America
- Thunder Biotech Inc., Provo, Utah, United States of America
| | - Brett E. Pickett
- Department of Microbiology and Molecular Biology, Brigham Young University, Provo, Utah, United States of America
| | - Kim L. O’Neill
- Department of Microbiology and Molecular Biology, Brigham Young University, Provo, Utah, United States of America
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19
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Rosso I, Jones-Weinert C, Rossiello F, Cabrini M, Brambillasca S, Munoz-Sagredo L, Lavagnino Z, Martini E, Tedone E, Garre' M, Aguado J, Parazzoli D, Mione M, Shay JW, Mercurio C, d'Adda di Fagagna F. Alternative lengthening of telomeres (ALT) cells viability is dependent on C-rich telomeric RNAs. Nat Commun 2023; 14:7086. [PMID: 37925537 PMCID: PMC10625592 DOI: 10.1038/s41467-023-42831-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 10/23/2023] [Indexed: 11/06/2023] Open
Abstract
Alternative lengthening of telomeres (ALT) is a telomere maintenance mechanism activated in ~10-15% of cancers, characterized by telomeric damage. Telomeric damage-induced long non-coding RNAs (dilncRNAs) are transcribed at dysfunctional telomeres and contribute to telomeric DNA damage response (DDR) activation and repair. Here we observed that telomeric dilncRNAs are preferentially elevated in ALT cells. Inhibition of C-rich (teloC) dilncRNAs with antisense oligonucleotides leads to DNA replication stress responses, increased genomic instability, and apoptosis induction selectively in ALT cells. Cell death is dependent on DNA replication and is increased by DNA replication stress. Mechanistically, teloC dilncRNA inhibition reduces RAD51 and 53BP1 recruitment to telomeres, boosts the engagement of BIR machinery, and increases C-circles and telomeric sister chromatid exchanges, without increasing telomeric non-S phase synthesis. These results indicate that teloC dilncRNA is necessary for a coordinated recruitment of DDR factors to ALT telomeres and it is essential for ALT cancer cells survival.
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Affiliation(s)
- Ilaria Rosso
- IFOM ETS - The AIRC Institute of Molecular Oncology, Milan, Italy
| | - Corey Jones-Weinert
- IFOM ETS - The AIRC Institute of Molecular Oncology, Milan, Italy
- The Salk Institute for Biological Studies, La Jolla, CA, USA
| | | | - Matteo Cabrini
- IFOM ETS - The AIRC Institute of Molecular Oncology, Milan, Italy
| | - Silvia Brambillasca
- IFOM ETS - The AIRC Institute of Molecular Oncology (Experimental Therapeutics Program), Milan, Italy
| | - Leonel Munoz-Sagredo
- Institute of Biological and Chemical Systems - Functional Molecular Systems (IBCS-FMS), Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
- School of Medicine, Universidad de Valparaiso, Valparaiso, Chile
| | - Zeno Lavagnino
- IFOM ETS - The AIRC Institute of Molecular Oncology, Milan, Italy
| | - Emanuele Martini
- IFOM ETS - The AIRC Institute of Molecular Oncology, Milan, Italy
- Dipartimento di Oncologia ed Emato-Oncologia, Università degli Studi di Milano, Milan, Italy
| | - Enzo Tedone
- Department of Cell Biology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Massimiliano Garre'
- IFOM ETS - The AIRC Institute of Molecular Oncology, Milan, Italy
- RCSI, Royal College of Surgeons in Ireland, Department of Chemistry, Dublin, Ireland
| | - Julio Aguado
- IFOM ETS - The AIRC Institute of Molecular Oncology, Milan, Italy
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD, Australia
| | - Dario Parazzoli
- IFOM ETS - The AIRC Institute of Molecular Oncology, Milan, Italy
| | - Marina Mione
- Department of Cellular, Computational and Integrative Biology - CIBIO, University of Trento, Trento, Italy
| | - Jerry W Shay
- Department of Cell Biology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Ciro Mercurio
- IFOM ETS - The AIRC Institute of Molecular Oncology (Experimental Therapeutics Program), Milan, Italy
| | - Fabrizio d'Adda di Fagagna
- IFOM ETS - The AIRC Institute of Molecular Oncology, Milan, Italy.
- Institute of Molecular Genetics IGM-CNR "Luigi Luca Cavalli-Sforza", Pavia, Italy.
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20
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Nurcombe ZW, Hehr CL, McFarlane S. Plexina4 and cell survival in the developing zebrafish hindbrain. Dev Dyn 2023; 252:1323-1337. [PMID: 37283310 DOI: 10.1002/dvdy.633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 04/27/2023] [Accepted: 05/01/2023] [Indexed: 06/08/2023] Open
Abstract
BACKGROUND Growth factors are important in the developing and mature nervous system to support the survival of neurons. Developmental signaling molecules are known for their roles in controlling neurogenesis and neural circuit formation. Whether or not these molecules also have roles in cell survival in the developing nervous system is poorly understood. Plexins are a family of transmembrane receptors that bind Semaphorin ligands and are known to function in the guidance of developing axons and blood vessels. RESULTS In embryonic zebrafish, plexina4 is expressed widely in the brain, becoming largely restricted to the hindbrain as neurogenesis and differentiation proceed. Apoptosis is increased in the embryonic hindbrain of a plexina4ca307/ca307 CRISPR mutant. Based on the literature, we tested the secreted heat shock protein, Clusterin, as a candidate ligand to mediate cell survival through Plexina4. clusterin is expressed by the floor plate of the embryonic zebrafish hindbrain, in proximity to plexina4-expressing hindbrain cells. Morpholino-mediated knockdown of Clusterin increases cell apoptosis in the hindbrain, with additional cell death observed in epistasis experiments where Clusterin is knocked down in a plexina4 mutant background. CONCLUSIONS Our data suggest that Plexina4 promotes cell survival in the developing zebrafish hindbrain, likely through a pathway independent of Clusterin.
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Affiliation(s)
- Zachary W Nurcombe
- Department Cell Biology and Anatomy, Hotchkiss Brain Institute, Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada
- Graduate Program in Neuroscience, University of Calgary, Calgary, Alberta, Canada
| | - Carrie Lynn Hehr
- Department Cell Biology and Anatomy, Hotchkiss Brain Institute, Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada
| | - Sarah McFarlane
- Department Cell Biology and Anatomy, Hotchkiss Brain Institute, Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada
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21
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Benson JC, Romito O, Abdelnaby AE, Xin P, Pathak T, Weir SE, Kirk V, Castaneda F, Yoast RE, Emrich SM, Tang PW, Yule DI, Hempel N, Potier-Cartereau M, Sneyd J, Trebak M. A multiple-oscillator mechanism underlies antigen-induced Ca 2+ oscillations in Jurkat T-cells. J Biol Chem 2023; 299:105310. [PMID: 37778728 PMCID: PMC10641176 DOI: 10.1016/j.jbc.2023.105310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 09/11/2023] [Accepted: 09/20/2023] [Indexed: 10/03/2023] Open
Abstract
T-cell receptor stimulation triggers cytosolic Ca2+ signaling by inositol-1,4,5-trisphosphate (IP3)-mediated Ca2+ release from the endoplasmic reticulum (ER) and Ca2+ entry through Ca2+ release-activated Ca2+ (CRAC) channels gated by ER-located stromal-interacting molecules (STIM1/2). Physiologically, cytosolic Ca2+ signaling manifests as regenerative Ca2+ oscillations, which are critical for nuclear factor of activated T-cells-mediated transcription. In most cells, Ca2+ oscillations are thought to originate from IP3 receptor-mediated Ca2+ release, with CRAC channels indirectly sustaining them through ER refilling. Here, experimental and computational evidence support a multiple-oscillator mechanism in Jurkat T-cells whereby both IP3 receptor and CRAC channel activities oscillate and directly fuel antigen-evoked Ca2+ oscillations, with the CRAC channel being the major contributor. KO of either STIM1 or STIM2 significantly reduces CRAC channel activity. As such, STIM1 and STIM2 synergize for optimal Ca2+ oscillations and activation of nuclear factor of activated T-cells 1 and are essential for ER refilling. The loss of both STIM proteins abrogates CRAC channel activity, drastically reduces ER Ca2+ content, severely hampers cell proliferation and enhances cell death. These results clarify the mechanism and the contribution of STIM proteins to Ca2+ oscillations in T-cells.
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Affiliation(s)
- J Cory Benson
- Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA; Vascular Medicine Institute, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA; Graduate Program in Cellular and Molecular Physiology, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania, USA
| | - Olivier Romito
- Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA; Vascular Medicine Institute, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA; Inserm UMR 1069, Nutrition Croissance Cancer, Faculté de Médecine, Université de Tours, Tours, France
| | - Ahmed Emam Abdelnaby
- Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA; Vascular Medicine Institute, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Ping Xin
- Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA; Vascular Medicine Institute, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Trayambak Pathak
- Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA; Vascular Medicine Institute, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Sierra E Weir
- Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA; Vascular Medicine Institute, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Vivien Kirk
- Department of Mathematics, University of Auckland, Auckland, New Zealand
| | | | - Ryan E Yoast
- Graduate Program in Cellular and Molecular Physiology, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania, USA
| | - Scott M Emrich
- Graduate Program in Cellular and Molecular Physiology, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania, USA
| | - Priscilla W Tang
- Division of Hematology/Oncology, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA; UPMC Hillman Cancer Center, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - David I Yule
- Department of Pharmacology and Physiology, University of Rochester, Rochester, New York, USA
| | - Nadine Hempel
- Division of Hematology/Oncology, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA; UPMC Hillman Cancer Center, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Marie Potier-Cartereau
- Inserm UMR 1069, Nutrition Croissance Cancer, Faculté de Médecine, Université de Tours, Tours, France
| | - James Sneyd
- Department of Mathematics, University of Auckland, Auckland, New Zealand
| | - Mohamed Trebak
- Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA; Vascular Medicine Institute, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA; UPMC Hillman Cancer Center, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA.
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22
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Peng J, Li S, Han M, Gao F, Qiao L, Tian Y. SNHG1/miR-21 axis mediates the cardioprotective role of aloin in sepsis through modulating cardiac cell viability and inflammatory responses. J Clin Lab Anal 2023; 37:e24985. [PMID: 37950500 PMCID: PMC10749494 DOI: 10.1002/jcla.24985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 10/27/2023] [Indexed: 11/12/2023] Open
Abstract
BACKGROUND Aloin has cardioprotective effects, however, its cardioprotective role in sepsis remains unclear. This study aimed to analyze whether aloin could prevent sepsis-related myocardial damage and explore the underlying mechanisms by examining the expression of long-noncoding RNA (lncRNA) SNHG1 and microRNA-21 (miR-21). METHODS The interaction of SNHG1 with miR-21 was identified by dual-luciferase reporter assay. The levels of SNHG1 and miR-21 were measured by real-time quantitative PCR. The cardioprotective function of aloin was assessed in a sepsis animal model, which was induced by cecal ligation and puncture, and in a myocardial injury cell model in H9C2 cells stimulated by lipopolysaccharide. Myocardial injury biomarker levels and hemodynamic indicators in mice model were measured to evaluate cardiac function. The viability of H9C2 cells was assessed by cell counting kit-8 assay. Inflammatory cytokine levels were examined by an ELISA method. RESULTS Decreased SNHG1 and increased miR-21 were found in sepsis patients with cardiac dysfunction, and they were negatively correlated. Aloin significantly attenuated myocardial damage and inflammatory responses of mice model, and increased the viability and suppressed inflammation in H9C2 cell model. In addition, SNHG1 expression was upregulated and miR-21 expression was downregulated by aloin in both mice and cell models. Moreover, in mice and cell models, SNHG1/miR-21 axis affected sepsis-related myocardial damage, and mediated the cardioprotective effects of aloin. CONCLUSION Our findings indicated that aloin exerts protective effects in sepsis-related myocardial damage through regulating cardiac cell viability and inflammatory responses via regulating the SNHG1/miR-21 axis.
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Affiliation(s)
- Jin Peng
- Intensive Care UnitShengli Oilfield Central HospitalDongyingShandongChina
| | - Shuyuan Li
- Intensive Care UnitShengli Oilfield Central HospitalDongyingShandongChina
| | - Maozhi Han
- Department of PharmacyThe 80th Army HospitalWeifangShandongChina
| | - Feng Gao
- Applied Pharmacology LaboratoryWeifang Medical CollegeWeifangShandongChina
| | - Lujun Qiao
- Intensive Care UnitShengli Oilfield Central HospitalDongyingShandongChina
| | - Yonggang Tian
- Intensive Care UnitShengli Oilfield Central HospitalDongyingShandongChina
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23
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Johansen VBI, Hampson E, Tsonou E, Pantarelli C, Chu JY, Crossland L, Okkenhaug H, Massey AJ, Hornigold DC, Welch HCE, Chetwynd SA. The GPCR adaptor protein Norbin regulates S1PR1 trafficking and the morphology, cell cycle and survival of PC12 cells. Sci Rep 2023; 13:18237. [PMID: 37880240 PMCID: PMC10600135 DOI: 10.1038/s41598-023-45148-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 10/16/2023] [Indexed: 10/27/2023] Open
Abstract
Norbin is an adaptor protein that binds numerous G protein-coupled receptors (GPCRs), is highly expressed in neurons, and is essential for a functioning nervous system in rodent models. Yet, beyond its control of neurite outgrowth and synaptic plasticity, few cellular roles of Norbin have been investigated to date. Furthermore, while Norbin is known to regulate the steady-state cell surface levels of several GPCRs, only in one case has the protein been shown to control the agonist-induced receptor internalisation which serves to attenuate GPCR signalling. Here, we generated a Norbin-deficient PC12 cell line which enabled us to study both the cellular functions of Norbin and its roles in GPCR trafficking and signalling. We show that Norbin limits cell size and spreading, and is required for the growth, viability and cell cycle progression of PC12 cells. We also found that Norbin regulates both the steady-state surface level and agonist-induced internalisation of the GPCR sphingosine-1-phosphate receptor 1 (S1PR1) in these cells, suggesting that its role in agonist-dependent GPCR trafficking is more widespread than previously appreciated. Finally, we show that Norbin limits the S1P-stimulated activation of Akt and p38 Mapk, and is required for the activation of Erk in PC12 cells. Together, our findings provide a better understanding of the cellular functions of Norbin and its control of GPCR trafficking.
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Affiliation(s)
- Valdemar B I Johansen
- Signalling Programme, The Babraham Institute, Babraham Research Campus, Cambridge, CB22 3AT, UK
- Department of Biology, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
- Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Elizabeth Hampson
- Signalling Programme, The Babraham Institute, Babraham Research Campus, Cambridge, CB22 3AT, UK
- Vernalis (R&D) Ltd., Cambridge, UK
| | - Elpida Tsonou
- Signalling Programme, The Babraham Institute, Babraham Research Campus, Cambridge, CB22 3AT, UK
- Bioscience Metabolism, Research and Early Development, Cardiovascular, Renal and Metabolism (CVRM), BioPharmaceuticals R&D, AstraZeneca, Cambridge, UK
| | - Chiara Pantarelli
- Signalling Programme, The Babraham Institute, Babraham Research Campus, Cambridge, CB22 3AT, UK
| | - Julia Y Chu
- Signalling Programme, The Babraham Institute, Babraham Research Campus, Cambridge, CB22 3AT, UK
| | - Laraine Crossland
- Signalling Programme, The Babraham Institute, Babraham Research Campus, Cambridge, CB22 3AT, UK
| | | | | | - David C Hornigold
- Bioscience Metabolism, Research and Early Development, Cardiovascular, Renal and Metabolism (CVRM), BioPharmaceuticals R&D, AstraZeneca, Cambridge, UK
| | - Heidi C E Welch
- Signalling Programme, The Babraham Institute, Babraham Research Campus, Cambridge, CB22 3AT, UK.
| | - Stephen A Chetwynd
- Signalling Programme, The Babraham Institute, Babraham Research Campus, Cambridge, CB22 3AT, UK.
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24
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Brunner A, Li Q, Fisicaro S, Kourtesakis A, Viiliäinen J, Johansson HJ, Pandey V, Mayank AK, Lehtiö J, Wohlschlegel JA, Spruck C, Rantala JK, Orre LM, Sangfelt O. FBXL12 degrades FANCD2 to regulate replication recovery and promote cancer cell survival under conditions of replication stress. Mol Cell 2023; 83:3720-3739.e8. [PMID: 37591242 PMCID: PMC10592106 DOI: 10.1016/j.molcel.2023.07.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 05/14/2023] [Accepted: 07/26/2023] [Indexed: 08/19/2023]
Abstract
Fanconi anemia (FA) signaling, a key genomic maintenance pathway, is activated in response to replication stress. Here, we report that phosphorylation of the pivotal pathway protein FANCD2 by CHK1 triggers its FBXL12-dependent proteasomal degradation, facilitating FANCD2 clearance at stalled replication forks. This promotes efficient DNA replication under conditions of CYCLIN E- and drug-induced replication stress. Reconstituting FANCD2-deficient fibroblasts with phosphodegron mutants failed to re-establish fork progression. In the absence of FBXL12, FANCD2 becomes trapped on chromatin, leading to replication stress and excessive DNA damage. In human cancers, FBXL12, CYCLIN E, and FA signaling are positively correlated, and FBXL12 upregulation is linked to reduced survival in patients with high CYCLIN E-expressing breast tumors. Finally, depletion of FBXL12 exacerbated oncogene-induced replication stress and sensitized cancer cells to drug-induced replication stress by WEE1 inhibition. Collectively, our results indicate that FBXL12 constitutes a vulnerability and a potential therapeutic target in CYCLIN E-overexpressing cancers.
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Affiliation(s)
- Andrä Brunner
- Department of Cell and Molecular Biology, Karolinska Institutet, Solna 17165, Stockholms län, Sweden.
| | - Qiuzhen Li
- Department of Cell and Molecular Biology, Karolinska Institutet, Solna 17165, Stockholms län, Sweden
| | - Samuele Fisicaro
- Department of Cell and Molecular Biology, Karolinska Institutet, Solna 17165, Stockholms län, Sweden
| | - Alexandros Kourtesakis
- Department of Cell and Molecular Biology, Karolinska Institutet, Solna 17165, Stockholms län, Sweden
| | - Johanna Viiliäinen
- Department of Cell and Molecular Biology, Karolinska Institutet, Solna 17165, Stockholms län, Sweden
| | - Henrik J Johansson
- Department of Oncology and Pathology, Karolinska Institutet, Science for Life Laboratory, Solna 17165, Stockholms län, Sweden
| | - Vijaya Pandey
- Department of Biological Chemistry, University of California, Los Angeles, Los Angeles 90095, CA, USA
| | - Adarsh K Mayank
- Department of Biological Chemistry, University of California, Los Angeles, Los Angeles 90095, CA, USA
| | - Janne Lehtiö
- Department of Oncology and Pathology, Karolinska Institutet, Science for Life Laboratory, Solna 17165, Stockholms län, Sweden
| | - James A Wohlschlegel
- Department of Biological Chemistry, University of California, Los Angeles, Los Angeles 90095, CA, USA
| | - Charles Spruck
- NCI-Designated Cancer Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla 92037, CA, USA
| | - Juha K Rantala
- Department of Oncology and Metabolism, University of Sheffield, Sheffield S10 2RX, South Yorkshire, UK; Misvik Biology, Turku 20520, Finland
| | - Lukas M Orre
- Department of Oncology and Pathology, Karolinska Institutet, Science for Life Laboratory, Solna 17165, Stockholms län, Sweden
| | - Olle Sangfelt
- Department of Cell and Molecular Biology, Karolinska Institutet, Solna 17165, Stockholms län, Sweden.
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25
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Souza BK, Freire NH, Monteiro TS, Herlinger AL, Jaeger M, Dalmolin MGS, de Farias CB, Gregianin L, Brunetto AT, Brunetto AL, Thiele CJ, Roesler R. Histone Methyltransferases G9a/ Ehmt2 and GLP/ Ehmt1 Are Associated with Cell Viability and Poorer Prognosis in Neuroblastoma and Ewing Sarcoma. Int J Mol Sci 2023; 24:15242. [PMID: 37894922 PMCID: PMC10607632 DOI: 10.3390/ijms242015242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 10/07/2023] [Accepted: 10/10/2023] [Indexed: 10/29/2023] Open
Abstract
Changes in epigenetic programming have been proposed as being key events in the initiation and progression of childhood cancers. HMT euchromatic histone lysine methyltransferase 2 (G9a, EHMT2), which is encoded by the G9a (Ehmt2) gene, as well as its related protein GLP, which is encoded by the GLP/Ehmt1 gene, participate in epigenetic regulation by contributing to a transcriptionally repressed chromatin state. G9a/GLP activation has been reported in several cancer types. Herein, we evaluated the role of G9a in two solid pediatric tumors: neuroblastoma (NB) and Ewing sarcoma (ES). Our results show that G9a/Ehmt2 and GLP/Ehmt1 expression is higher in tumors with poorer prognosis, including St4 International Neuroblastoma Staging System (INSS) stage, MYCN amplified NB, and metastatic ES. Importantly, higher G9a and GLP levels were associated with shorter patient overall survival (OS) in both NB and ES. Moreover, pharmacological inhibition of G9a/GLP reduced cell viability in NB and ES cells. These findings suggest that G9a and GLP are associated with more aggressive NB and ES tumors and should be further investigated as being epigenetic targets in pediatric solid cancers.
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Affiliation(s)
- Barbara Kunzler Souza
- Cancer and Neurobiology Laboratory, Experimental Research Center, Clinical Hospital (CPE-HCPA), Federal University of Rio Grande do Sul, Porto Alegre 90035-003, Brazil (A.T.B.)
- National Science and Technology Institute for Children’s Cancer Biology and Pediatric Oncology—INCT BioOncoPed, Porto Alegre 90035-003, Brazil
- Epigenica Biosciences, Canoas 92035-000, Brazil;
| | - Natalia Hogetop Freire
- Cancer and Neurobiology Laboratory, Experimental Research Center, Clinical Hospital (CPE-HCPA), Federal University of Rio Grande do Sul, Porto Alegre 90035-003, Brazil (A.T.B.)
- National Science and Technology Institute for Children’s Cancer Biology and Pediatric Oncology—INCT BioOncoPed, Porto Alegre 90035-003, Brazil
- Children’s Cancer Institute, Porto Alegre 90620-110, Brazil
| | | | - Alice Laschuk Herlinger
- Cancer and Neurobiology Laboratory, Experimental Research Center, Clinical Hospital (CPE-HCPA), Federal University of Rio Grande do Sul, Porto Alegre 90035-003, Brazil (A.T.B.)
- National Science and Technology Institute for Children’s Cancer Biology and Pediatric Oncology—INCT BioOncoPed, Porto Alegre 90035-003, Brazil
| | - Mariane Jaeger
- Cancer and Neurobiology Laboratory, Experimental Research Center, Clinical Hospital (CPE-HCPA), Federal University of Rio Grande do Sul, Porto Alegre 90035-003, Brazil (A.T.B.)
- National Science and Technology Institute for Children’s Cancer Biology and Pediatric Oncology—INCT BioOncoPed, Porto Alegre 90035-003, Brazil
- Children’s Cancer Institute, Porto Alegre 90620-110, Brazil
| | - Matheus G. S. Dalmolin
- National Science and Technology Institute for Children’s Cancer Biology and Pediatric Oncology—INCT BioOncoPed, Porto Alegre 90035-003, Brazil
- Children’s Cancer Institute, Porto Alegre 90620-110, Brazil
| | - Caroline Brunetto de Farias
- Cancer and Neurobiology Laboratory, Experimental Research Center, Clinical Hospital (CPE-HCPA), Federal University of Rio Grande do Sul, Porto Alegre 90035-003, Brazil (A.T.B.)
- National Science and Technology Institute for Children’s Cancer Biology and Pediatric Oncology—INCT BioOncoPed, Porto Alegre 90035-003, Brazil
- Children’s Cancer Institute, Porto Alegre 90620-110, Brazil
| | - Lauro Gregianin
- Cancer and Neurobiology Laboratory, Experimental Research Center, Clinical Hospital (CPE-HCPA), Federal University of Rio Grande do Sul, Porto Alegre 90035-003, Brazil (A.T.B.)
- National Science and Technology Institute for Children’s Cancer Biology and Pediatric Oncology—INCT BioOncoPed, Porto Alegre 90035-003, Brazil
- Children’s Cancer Institute, Porto Alegre 90620-110, Brazil
- Department of Pediatrics, School of Medicine, Federal University of Rio Grande do Sul, Porto Alegre 90035-003, Brazil
- Pediatric Oncology Service, Clinical Hospital, Federal University of Rio Grande do Sul, Porto Alegre 90035-003, Brazil
| | - André T. Brunetto
- Cancer and Neurobiology Laboratory, Experimental Research Center, Clinical Hospital (CPE-HCPA), Federal University of Rio Grande do Sul, Porto Alegre 90035-003, Brazil (A.T.B.)
- National Science and Technology Institute for Children’s Cancer Biology and Pediatric Oncology—INCT BioOncoPed, Porto Alegre 90035-003, Brazil
- Children’s Cancer Institute, Porto Alegre 90620-110, Brazil
| | - Algemir L. Brunetto
- Cancer and Neurobiology Laboratory, Experimental Research Center, Clinical Hospital (CPE-HCPA), Federal University of Rio Grande do Sul, Porto Alegre 90035-003, Brazil (A.T.B.)
- National Science and Technology Institute for Children’s Cancer Biology and Pediatric Oncology—INCT BioOncoPed, Porto Alegre 90035-003, Brazil
- Children’s Cancer Institute, Porto Alegre 90620-110, Brazil
| | - Carol J. Thiele
- Pediatric Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Rafael Roesler
- Cancer and Neurobiology Laboratory, Experimental Research Center, Clinical Hospital (CPE-HCPA), Federal University of Rio Grande do Sul, Porto Alegre 90035-003, Brazil (A.T.B.)
- National Science and Technology Institute for Children’s Cancer Biology and Pediatric Oncology—INCT BioOncoPed, Porto Alegre 90035-003, Brazil
- Department of Pharmacology, Institute for Basic Health Sciences, Federal University of Rio Grande do Sul, Porto Alegre 90035-003, Brazil
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Levis H, Weston J, Austin B, Larsen B, Ginley-Hidinger M, Gullbrand SE, Lawrence B, Bowles RD. Multiplex gene editing to promote cell survival using low-pH clustered regularly interspaced short palindromic repeats activation (CRISPRa) gene perturbation. Cytotherapy 2023; 25:1069-1079. [PMID: 37245150 PMCID: PMC10527564 DOI: 10.1016/j.jcyt.2023.05.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 05/02/2023] [Accepted: 05/04/2023] [Indexed: 05/29/2023]
Abstract
BACKGROUND AIMS Lower back pain is the leading cause of disability worldwide and is often linked to degenerative disc disease (DDD), the breakdown of intervertebral discs. The majority of treatment options for DDD are palliative, with clinicians prescribing medication or physical therapy to return the patient to work. Cell therapies are promising treatment options with the potential to restore functional physiological tissue and treat the underlying causes of DDD. DDD is characterized by biochemical changes in the microenvironment of the disc, including changes in nutrient levels, hypoxia, and changes in pH. Stem cell therapies are promising therapies to treat DDD, but the acidic environment in a degenerating disc significantly hinders the viability of stem cells, affecting their efficacy. Clustered regularly interspaced short palindromic repeats (CRISPR) systems allow us to engineer cell phenotypes in a well-regulated and controlled manner. Recently, CRISPR gene perturbation screens have assessed fitness, growth and provided a means for specific cell phenotype characterization. METHODS In this study, we use a CRISPR-activation (a) gene perturbation screen to identify gene upregulation targets that enhance adipose-derived stem cell survival in acidic culture conditions. RESULTS We identified 1213 prospective pro-survival genes and systematically narrowed these down to 20 genes for validation. We further narrowed down our selection to the top five prospective genes using Cell Counting Kit-8 cell viability assays in naïve adipose-derived stem cells and ACAN/Col2 CRISPRa upregulated stem cells. Finally, we examined the extracellular matrix-producing abilities of multiplex ACAN/Col2-pro-survival edited cells in pellet culture. CONCLUSIONS Using the results from the CRISPRa screen, we are able to engineer desirable cell phenotypes to improve cell viability for the potential treatment of DDD and other disease states that expose cell therapies to acidic environments, while also providing broader knowledge on genes regulating low-pH cell survival.
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Affiliation(s)
- Hunter Levis
- Department of Biomedical Engineering, The University of Utah, Salt Lake City, Utah, USA
| | - Jacob Weston
- Department of Biomedical Engineering, The University of Utah, Salt Lake City, Utah, USA
| | - Brooke Austin
- Department of Biomedical Engineering, The University of Utah, Salt Lake City, Utah, USA
| | - Bryce Larsen
- Department of Biomedical Engineering, The University of Utah, Salt Lake City, Utah, USA
| | | | - Sarah E Gullbrand
- Department of Orthopedic Surgery, The University of Pennsylvania, Philadelphia, Pennsylvania, USA; Corporal Michael J. Crescenz VA Medical Center, Philadelphia, Pennsylvania, USA
| | - Brandon Lawrence
- Department of Orthopedic Surgery, The University of Utah, Salt Lake City, Utah, USA
| | - Robby D Bowles
- Department of Biomedical Engineering, The University of Utah, Salt Lake City, Utah, USA; Department of Orthopedic Surgery, The University of Utah, Salt Lake City, Utah, USA.
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27
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Haoran S, Zhishan J, Yan M, Ruilin M, Jianjian C, Zejun Y, Jianwen Z, Hui G, Yin Z. Hypoxic Preconditioning Enhances Cellular Viability and Migratory Ability: Role of DANCR/miR-656-3p/HIF-1α Axis in Placental Mesenchymal Stem Cells. Stem Cells 2023; 41:877-891. [PMID: 37317862 DOI: 10.1093/stmcls/sxad048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Accepted: 05/28/2023] [Indexed: 06/16/2023]
Abstract
Preeclampsia (PE) is a common complication of pregnancy characterized by new-onset hypertension, albuminuria, or end-stage organ dysfunction, which is seriously harmful to maternal and infant health. Mesenchymal stem cells (MSCs) are pluripotent stem cells derived from extraembryonic mesoderm. They have the potential for self-renewal, multidirectional differentiation, immunomodulation, and tissue regeneration. Several in vivo and in vitro experiments have confirmed that MSCs can delay the pathological progression of PE and improve maternal and fetal outcomes. However, the major limitations in the application of MSCs are their low-survival rates in ischemic and hypoxic disease areas after transplantation and their low rate of successful migration to the diseased regions. Therefore, enhancing cell viability and migration ability of MSCs in both ischemic and anoxic environments is important. This study aimed to investigate the effects of hypoxic preconditioning on the viability and migration ability of placental mesenchymal stem cells (PMSCs) and their underlying mechanisms. In this study, we found that hypoxic preconditioning enhanced the viability and migration ability of PMSCs, increased the expression of DANCR and hypoxia-inducible factor-1α (HIF-1α), and decreased the expression of miR-656-3p in PMSCs. Inhibiting the expression of HIF-1α and DACNR in PMSCs under hypoxia can inhibit the promotive effect of hypoxic preconditioning on viability and migration ability. In addition, RNA pull down and double luciferase assays confirmed that miR-656-3p could directly bind to DANCR and HIF-1α. In conclusion, our study showed that hypoxia could promote the viability and migration ability of PMSCs through the DANCR/miR-656-3p/HIF-1α axis.
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Affiliation(s)
- Shi Haoran
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Jin Zhishan
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Mao Yan
- Department of Obstetrics and Gynecology, Guangshui Second People's Hospital of Hubei Province, Suizhou, People's Republic of China
| | - Ma Ruilin
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Cui Jianjian
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Yang Zejun
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Zhu Jianwen
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Gao Hui
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Zhao Yin
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
- Shenzhen Huazhong University of Science and Technology Research Institute, Shenzhen, People's Republic of China
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28
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Zhang Y, Wan X, Yang X, Liu X, Huang Q, Zhou L, Zhang S, Liu S, Xiong Q, Wei M, Qiu L, Zhang B, Han J. eIF3i promotes colorectal cancer cell survival via augmenting PHGDH translation. J Biol Chem 2023; 299:105177. [PMID: 37611825 PMCID: PMC10511817 DOI: 10.1016/j.jbc.2023.105177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 08/03/2023] [Accepted: 08/13/2023] [Indexed: 08/25/2023] Open
Abstract
Translational regulation is one of the decisive steps in gene expression, and its dysregulation is closely related to tumorigenesis. Eukaryotic translation initiation factor 3 subunit i (eIF3i) promotes tumor growth by selectively regulating gene translation, but the underlying mechanisms are largely unknown. Here, we show that eIF3i is significantly increased in colorectal cancer (CRC) and reinforces the proliferation of CRC cells. Using ribosome profiling and proteomics analysis, several genes regulated by eIF3i at the translation level were identified, including D-3-phosphoglycerate dehydrogenase (PHGDH), a rate-limiting enzyme in the de novo serine synthesis pathway that participates in metabolic reprogramming of tumor cells. PHGDH knockdown significantly represses CRC cell proliferation and partially attenuates the excessive growth induced by eIF3i overexpression. Mechanistically, METTL3-mediated N6-methyladenosine modification on PHGDH mRNA promotes its binding with eIF3i, ultimately leading to a higher translational rate. In addition, knocking down eIF3i and PHGDH impedes tumor growth in vivo. Collectively, this study not only uncovered a novel regulatory mechanism for PHGDH translation but also demonstrated that eIF3i is a critical metabolic regulator in human cancer.
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Affiliation(s)
- Yaguang Zhang
- Department of Biotherapy, Cancer Center and State Laboratory of Biotherapy, and Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China; Research Laboratory of Cancer Epigenetics and Genomics, Department of General Surgery, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Xiaowen Wan
- Department of Biotherapy, Cancer Center and State Laboratory of Biotherapy, and Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Xuyang Yang
- Department of Biotherapy, Cancer Center and State Laboratory of Biotherapy, and Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China; Research Laboratory of Cancer Epigenetics and Genomics, Department of General Surgery, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Xueqin Liu
- Department of Biotherapy, Cancer Center and State Laboratory of Biotherapy, and Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Qing Huang
- Department of Biotherapy, Cancer Center and State Laboratory of Biotherapy, and Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Lian Zhou
- Department of Biotherapy, Cancer Center and State Laboratory of Biotherapy, and Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Su Zhang
- Department of Biotherapy, Cancer Center and State Laboratory of Biotherapy, and Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Sicheng Liu
- Department of Biotherapy, Cancer Center and State Laboratory of Biotherapy, and Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Qunli Xiong
- Research Laboratory of Cancer Epigenetics and Genomics, Department of General Surgery, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Mingtian Wei
- Research Laboratory of Cancer Epigenetics and Genomics, Department of General Surgery, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Lei Qiu
- Department of Biotherapy, Cancer Center and State Laboratory of Biotherapy, and Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China; Research Laboratory of Cancer Epigenetics and Genomics, Department of General Surgery, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Bo Zhang
- Research Laboratory of Cancer Epigenetics and Genomics, Department of General Surgery, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Junhong Han
- Department of Biotherapy, Cancer Center and State Laboratory of Biotherapy, and Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China; Research Laboratory of Cancer Epigenetics and Genomics, Department of General Surgery, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China.
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29
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Fei X, Cen X, Zhao R, Wang J, Cui H. PRMT5 knockdown enhances cell viability and suppresses cell apoptosis, oxidative stress, inflammation and endothelial dysfunction in ox-LDL-induced vascular endothelial cells via interacting with PDCD4. Int Immunopharmacol 2023; 122:110529. [PMID: 37399609 DOI: 10.1016/j.intimp.2023.110529] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 06/06/2023] [Accepted: 06/15/2023] [Indexed: 07/05/2023]
Abstract
Atherosclerosis (AS) is an important pathological basis of cardiovascular disease (CVD). The development of AS commences with endothelial dysfunction due to vascular endothelial cell injury. It is well documented that protein arginine methyltransferase 5 (PRMT5) is highly related to cardiovascular events. BioGRID database analysis indicates that PRMT5 may interact with programmed cell death 4 (PDCD4), which is reported to be involved in AS progression. This present research was formulated to elucidate the biological roles of PRMT5/PDCD4 in vascular endothelial cell injury during AS. In this current work, HUVECs were stimulated with 100 mg/L ox-LDL for 48 h to construct an in vitro AS model. Expression levels of PRMT5 and PDCD4 were analyzed by performing RT-qPCR and western blot. The viability and apoptosis of HUVECs were determined using CCK-8, flow cytometry and western blot assays. The status of oxidative stress and inflammation was assessed via commercial detection kits and ELISA assay, respectively. Besides, biomarkers of endothelial dysfunction were detected via commercial detection kit and western blot assay. In addition, the interacting relationship between PRMT5 and PDCD4 was verified by Co-IP assay. Highly expressed PRMT5 was observed in ox-LDL-stimulated HUVECs. Knockdown of PRMT5 enhanced the viability and inhibited the apoptosis of ox-LDL-induced HUVECs as well as alleviated ox-LDL-triggered oxidative stress, inflammation and endothelial dysfunction in HUVECs. PRMT5 interacted and bound with PDCD4. Furthermore, the enhancing effect on cell viability as well as the suppressing effects on cell apoptosis, oxidative stress, inflammation and endothelial dysfunction of PRMT5 knockdown in ox-LDL-induced HUVECs were partially abolished upon up-regulation of PDCD4. To conclude, down-regulation of PRMT5 might exert protective effects against vascular endothelial cell injury during AS by suppressing PDCD4 expression.
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Affiliation(s)
- Xiaohong Fei
- Cardiology Center, Ningbo First Hospital, Ningbo, 315010, Zhejiang, PR China; Key Laboratory of Precision Medicine for Atherosclerotic Diseases of Zhejiang Province, Ningbo First Hospital, Ningbo, 315010, Zhejiang, PR China.
| | - Xuejiang Cen
- Cardiology Center, Zhejiang Provincial People's Hospital, Hangzhou, 310014, Zhejiang, PR China
| | - Ruochi Zhao
- Cardiology Center, Ningbo First Hospital, Ningbo, 315010, Zhejiang, PR China; Key Laboratory of Precision Medicine for Atherosclerotic Diseases of Zhejiang Province, Ningbo First Hospital, Ningbo, 315010, Zhejiang, PR China
| | - Jian Wang
- Cardiology Center, Ningbo First Hospital, Ningbo, 315010, Zhejiang, PR China; Key Laboratory of Precision Medicine for Atherosclerotic Diseases of Zhejiang Province, Ningbo First Hospital, Ningbo, 315010, Zhejiang, PR China
| | - Hanbin Cui
- Cardiology Center, Ningbo First Hospital, Ningbo, 315010, Zhejiang, PR China; Key Laboratory of Precision Medicine for Atherosclerotic Diseases of Zhejiang Province, Ningbo First Hospital, Ningbo, 315010, Zhejiang, PR China
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30
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Kreienbühl J, Changkhong S, Orlowski V, Kirschner MB, Opitz I, Meerang M. Cullin 4B Ubiquitin Ligase Is Important for Cell Survival and Regulates TGF-β1 Expression in Pleural Mesothelioma. Int J Mol Sci 2023; 24:13410. [PMID: 37686215 PMCID: PMC10487616 DOI: 10.3390/ijms241713410] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 08/22/2023] [Accepted: 08/26/2023] [Indexed: 09/10/2023] Open
Abstract
We previously demonstrated that cullin 4B (CUL4B) upregulation was associated with worse outcomes of pleural mesothelioma (PM) patients, while the overexpression of its paralog CUL4A was not associated with clinical outcomes. Here, we aimed to identify the distinct roles of CUL4B and CUL4A in PM using an siRNA approach in PM cell lines (ACC Meso-1 and Mero82) and primary culture. The knockdown of CUL4B and CUL4A resulted in significantly reduced colony formation, increased cell death, and delayed cell proliferation. Furthermore, similar to the effect of CUL4A knockdown, downregulation of CUL4B led to reduced expression of Hippo pathway genes including YAP1, CTGF, and survivin. Interestingly, CUL4B and not CUL4A knockdown reduced TGF-β1 and MMP2 expression, suggesting a unique association of CUL4B with this pathway. However, the treatment of PM cells with exogenous TGF-β1 following CUL4B knockdown did not rescue PM cell growth. We further analyzed ACC Meso-1 xenograft tumor tissues treated with the cullin inhibitor, pevonedistat, which targets protein neddylation, and observed the downregulation of human TGF-β1 and MMP2. In summary, our data suggest that CUL4B overexpression is important for tumor cell growth and survival and may drive PM aggressiveness via the regulation of TGF-β1 expression and, furthermore, reveal a new mechanism of action of pevonedistat.
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Affiliation(s)
| | | | | | | | | | - Mayura Meerang
- Department of Thoracic Surgery, University Hospital Zürich, 8091 Zürich, Switzerland (V.O.); (M.B.K.); (I.O.)
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31
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Zheng X, Shao J, Qian J, Liu S. circRPS19 affects HK2‑mediated aerobic glycolysis and cell viability via the miR‑125a‑5p/USP7 pathway in gastric cancer. Int J Oncol 2023; 63:98. [PMID: 37449524 PMCID: PMC10552706 DOI: 10.3892/ijo.2023.5546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 05/23/2023] [Indexed: 07/18/2023] Open
Abstract
Despite advances in diagnosis and treatment, gastric cancer (GC) remains a refractory disease, which limits overall survival. Therefore, it is key to identify novel targets to develop more effective and precise treatment. Circular RNAs (circRNAs) serve essential roles in the process of various human cancers. Through analyzing GSE83521 dataset, the present study identified a novel circRNA derived from ribosomal protein S19 (circRPS19), which was considered a potential treatment target for GC. Results of RT‑qPCR indicated that circRPS19 was upregulated in GC compared with normal gastric epithelial cells. Loss‑of function assays revealed that silencing of circRPS19 suppressed proliferation and aerobic glycolysis but increased apoptosis of GC cells. circRPS19 upregulated ubiquitin‑specific processing protease 7 (USP7) expression by sponging microRNA (miR)‑125a‑5p. circRPS19 stabilized hexokinase 2 (HK2) protein by USP7‑mediated deubiquitination of HK2. In vivo experiments confirmed that circRPS19 promoted GC progression and aerobic glycolysis. Taken together, circRPS19 induced aerobic glycolysis of GC cells by stabilizing HK2 protein via the miR‑125a‑5p/USP7 axis and thus promoting the progression of GC. These findings suggested that circRPS19 served a critical role in the progression of GC and may be a novel therapeutic target for GC.
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Affiliation(s)
- Xia Zheng
- Oncology Department, Affiliated Hospital of Nanjing University of Chinese Medicine
- Oncology Department, Jiangsu Province Hospital of Chinese Medicine, Nanjing, Jiangsu 210029, P.R. China
| | - Jie Shao
- Oncology Department, Affiliated Hospital of Nanjing University of Chinese Medicine
- Oncology Department, Jiangsu Province Hospital of Chinese Medicine, Nanjing, Jiangsu 210029, P.R. China
| | - Jun Qian
- Oncology Department, Affiliated Hospital of Nanjing University of Chinese Medicine
- Oncology Department, Jiangsu Province Hospital of Chinese Medicine, Nanjing, Jiangsu 210029, P.R. China
| | - Shenlin Liu
- Oncology Department, Affiliated Hospital of Nanjing University of Chinese Medicine
- Oncology Department, Jiangsu Province Hospital of Chinese Medicine, Nanjing, Jiangsu 210029, P.R. China
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Shu F, Lu J, Zhang W, Huang H, Lin J, Jiang L, Liu W, Liu T, Xiao S, Zheng Y, Xia Z. JAM-A Overexpression in Human Umbilical Cord-Derived Mesenchymal Stem Cells Accelerated the Angiogenesis of Diabetic Wound By Enhancing Both Paracrine Function and Survival of Mesenchymal Stem Cells. Stem Cell Rev Rep 2023; 19:1554-1575. [PMID: 37060532 DOI: 10.1007/s12015-023-10518-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/08/2023] [Indexed: 04/16/2023]
Abstract
Mesenchymal stem cells (MSCs) is promising in promoting wound healing mainly due to their paracrine function. Nonetheless, the transplanted MSCs presented poor survival with cell dysfunction and paracrine problem in diabetic environment, thus limiting their therapeutic efficacy and clinical application. JAM-A, an adhesion molecule, has been reported to play multi-functional roles in diverse cells. We therefore investigated the potential effect of JAM-A on MSCs under diabetic environment and explored the underlying mechanism. Indeed, high-glucose condition inhibited MSCs viability and JAM-A expression. However, JAM-A abnormality was rescued by lentivirus transfection and JAM-A overexpression promoted MSCs proliferation, migration and adhesion under hyperglycemia. Moreover, JAM-A overexpression attenuated high-glucose-induced ROS production and MSCs apoptosis. The bio-effects of JAM-A on MSCs under hyperglycemia were confirmed by RNA-seq with enrichment analyses. Moreover, Luminex chip results showed JAM-A overexpression dramatically upregulated PDGF-BB and VEGF in the supernatant of MSCs, which was verified by RT-qPCR and western blotting. The supernatant was further found to facilitate HUVECs proliferation, migration and angiogenesis under hyperglycemia. In vivo experiments revealed JAM-A overexpression significantly enhanced MSCs survival, promoted wound angiogenesis, and thus accelerated diabetic wound closure, partially by enhancing PDGF-BB and VEGF expression. This study firstly demonstrated that JAM-A expression of MSCs was inhibited upon high-glucose stimulation. JAM-A overexpression alleviated high-glucose-induced MSCs dysfunction, enhanced their anti-oxidative capability, protected MSCs from hyperglycemia-induced apoptosis and improved their survival, thus strengthening MSCs paracrine function to promote angiogenesis and significantly accelerating diabetic wound healing, which offers a promising strategy to maximize MSCs-based therapy in diabetic wound.
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Affiliation(s)
- Futing Shu
- Department of Burn Surgery, the First Affiliated Hospital of Naval Medical University, Shanghai, 200433, People's Republic of China
| | - Jianyu Lu
- Department of Burn Surgery, the First Affiliated Hospital of Naval Medical University, Shanghai, 200433, People's Republic of China
| | - Wei Zhang
- Department of Burn Surgery, the First Affiliated Hospital of Naval Medical University, Shanghai, 200433, People's Republic of China
| | - Hongchao Huang
- Department of Burn Surgery, the First Affiliated Hospital of Naval Medical University, Shanghai, 200433, People's Republic of China
| | - Jiezhi Lin
- Department of Burn Surgery, the First Affiliated Hospital of Naval Medical University, Shanghai, 200433, People's Republic of China
| | - Luofeng Jiang
- Department of Burn Surgery, the First Affiliated Hospital of Naval Medical University, Shanghai, 200433, People's Republic of China
| | - Wenzhang Liu
- Department of Burn Surgery, the First Affiliated Hospital of Naval Medical University, Shanghai, 200433, People's Republic of China
| | - Tianyi Liu
- Department of Burn Surgery, the First Affiliated Hospital of Naval Medical University, Shanghai, 200433, People's Republic of China
| | - Shichu Xiao
- Department of Burn Surgery, the First Affiliated Hospital of Naval Medical University, Shanghai, 200433, People's Republic of China.
| | - Yongjun Zheng
- Department of Burn Surgery, the First Affiliated Hospital of Naval Medical University, Shanghai, 200433, People's Republic of China.
| | - Zhaofan Xia
- Department of Burn Surgery, the First Affiliated Hospital of Naval Medical University, Shanghai, 200433, People's Republic of China.
- Research Unit of Key Techniques for Treatment of Burns and Combined Burns and Trauma Injury, Chinese Academy of Medical Sciences, Shanghai, 200433, People's Republic of China.
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Zheng W, Guo Y, Zhang G, Bai J, Song Y, Song X, Zhu Q, Bao X, Wu G, Zhang C. Peptide encoded by lncRNA BVES-AS1 promotes cell viability, migration, and invasion in colorectal cancer cells via the SRC/mTOR signaling pathway. PLoS One 2023; 18:e0287133. [PMID: 37347740 PMCID: PMC10286995 DOI: 10.1371/journal.pone.0287133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 05/31/2023] [Indexed: 06/24/2023] Open
Abstract
Long non-coding RNAs (lncRNAs) have been revealed to harbor open reading frames (ORFs) that can be translated into small peptides. The peptides may participate in the pathogenesis of colorectal cancer (CRC). Herein, we investigated the role of a lncRNA BVES-AS1-encoded peptide in colorectal tumorigenesis. Through bioinformatic analysis, lncRNA BVES-AS1 was predicted to have encoding potential and to be associated with poor prognosis of patients with CRC. In CRC cells, BVES-AS1 was validated to encode a 50-aa-length micro-peptide, named BVES-AS1-201-50aa, through a western blotting method. BVES-AS1-201-50aa enhanced cell viability and promoted the migratory and invasive capacities of HCT116 and SW480 CRC cells in vitro, validated via CCK-8 assay and transwell assay, respectively. Immunofluorescence assay showed that BVES-AS1-201-50aa increased the expression of proliferating cell nuclear antigen (PCNA) and matrix metalloproteinase 9 (MMP9) in CRC cells. We further verified that BVES-AS1-201-50aa targeted and activated the Src/mTOR signaling pathway in CRC cells by co-immunoprecipitation (Co-IP) experiment, qualitative proteomic analysis, and western blotting. Our findings demonstrated that BVES-AS1 could encode a micro-peptide, which promoted CRC cell viability, migration, and invasion in vitro. Our current work broadens the diversity and breadth of lncRNAs in human carcinogenesis.
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Affiliation(s)
- Weiwei Zheng
- Department of Gastrointestinal Surgery, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, School of Clinical Medicine, Henan University, Zhengzhou, Henan Province, China
| | - Yingchang Guo
- Department of Interventional Therapy, the First Affiliated Hospital of Xinxiang Medical College, Xinxiang, Henan Province, China
| | - Guangtan Zhang
- Department of Gastrointestinal Surgery, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, School of Clinical Medicine, Henan University, Zhengzhou, Henan Province, China
| | - Junwei Bai
- Department of Gastrointestinal Surgery, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, School of Clinical Medicine, Henan University, Zhengzhou, Henan Province, China
| | - Yucheng Song
- Department of Gastrointestinal Surgery, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, School of Clinical Medicine, Henan University, Zhengzhou, Henan Province, China
| | - Xiaofei Song
- Department of Gastrointestinal Surgery, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, School of Clinical Medicine, Henan University, Zhengzhou, Henan Province, China
| | - Qinhui Zhu
- Department of General Surgery, Shangcai People’s Hospital, Zhumadian, Henan Province, China
| | - Xuebin Bao
- Department of Gastrointestinal Surgery, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, School of Clinical Medicine, Henan University, Zhengzhou, Henan Province, China
| | - Gang Wu
- Department of Gastrointestinal Surgery, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, School of Clinical Medicine, Henan University, Zhengzhou, Henan Province, China
| | - Chao Zhang
- Department of Gastrointestinal Surgery, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, School of Clinical Medicine, Henan University, Zhengzhou, Henan Province, China
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Steiner AJ, Zheng Y, Tang Y. Characterization of a rhabdomyosarcoma reveals a critical role for SMG7 in cancer cell viability and tumor growth. Sci Rep 2023; 13:10152. [PMID: 37349371 PMCID: PMC10287741 DOI: 10.1038/s41598-023-36568-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 06/06/2023] [Indexed: 06/24/2023] Open
Abstract
Soft-tissue sarcomas (STSs) are a rare and diverse group of mesenchymal cancers plagued with aggression, poor response to systemic therapy, and high rates of recurrence. Although STSs generally have low mutational burdens, the most commonly mutated genes are tumor suppressors, which frequently acquire mutations inducing nonsense-mediated mRNA decay (NMD). This suggests that STS cells may exploit NMD to suppress these anti-cancer genes. To examine the role that the NMD factor SMG7 plays in STS, we developed an inducible knockout mouse model in the Trp53-/- background. Here, we isolated a subcutaneous STS and identified it as a rhabdomyosarcoma (RMS). We report that knockout of SMG7 significantly inhibited NMD in our RMS cells, which led to the induction of NMD targets GADD45b and the tumor suppressor GAS5. The loss of NMD and upregulation of these anti-cancer genes were concomitant with the loss of RMS cell viability and inhibited tumor growth. Importantly, SMG7 was dispensable for homeostasis in our mouse embryonic fibroblasts and adult mice. Overall, our data show that the loss of SMG7 induces a strong anti-cancer effect both in vitro and in vivo. We present here the first evidence that disrupting SMG7 function may be tolerable and provide a therapeutic benefit for STS treatment.
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Affiliation(s)
- Alexander J Steiner
- Department of Regenerative and Cancer Cell Biology, Albany Medical College, 47 New Scotland Avenue, Albany, NY, 12208, USA
| | - Yang Zheng
- Department of Regenerative and Cancer Cell Biology, Albany Medical College, 47 New Scotland Avenue, Albany, NY, 12208, USA
| | - Yi Tang
- Department of Regenerative and Cancer Cell Biology, Albany Medical College, 47 New Scotland Avenue, Albany, NY, 12208, USA.
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DeRogatis JM, Neubert EN, Viramontes KM, Henriquez ML, Nicholas DA, Tinoco R. Cell-Intrinsic CD38 Expression Sustains Exhausted CD8 + T Cells by Regulating Their Survival and Metabolism during Chronic Viral Infection. J Virol 2023; 97:e0022523. [PMID: 37039663 PMCID: PMC10134879 DOI: 10.1128/jvi.00225-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 03/19/2023] [Indexed: 04/12/2023] Open
Abstract
Acute and chronic viral infections result in the differentiation of effector and exhausted T cells with functional and phenotypic differences that dictate whether the infection is cleared or progresses to chronicity. High CD38 expression has been observed on CD8+ T cells across various viral infections and tumors in patients, suggesting an important regulatory function for CD38 on responding T cells. Here, we show that CD38 expression was increased and sustained on exhausted CD8+ T cells following chronic lymphocytic choriomeningitis virus (LCMV) infection, with lower levels observed on T cells from acute LCMV infection. We uncovered a cell-intrinsic role for CD38 expression in regulating the survival of effector and exhausted CD8+ T cells. We observed increased proliferation and function of Cd38-/- CD8+ progenitor exhausted T cells compared to those of wild-type (WT) cells. Furthermore, decreased oxidative phosphorylation and glycolytic potential were observed in Cd38-/- CD8+ T cells during chronic but not acute LCMV infection. Our studies reveal that CD38 has a dual cell-intrinsic function in CD8+ T cells, where it decreases proliferation and function yet supports their survival and metabolism. These findings show that CD38 is not only a marker of T cell activation but also has regulatory functions on effector and exhausted CD8+ T cells. IMPORTANCE Our study shows how CD38 expression is regulated on CD8+ T cells responding during acute and chronic viral infection. We observed higher CD38 levels on CD8+ T cells during chronic viral infection compared to levels during acute viral infection. Deleting CD38 had an important cell-intrinsic function in ensuring the survival of virus-specific CD8+ T cells throughout the course of viral infection. We found defective metabolism in Cd38-/- CD8+ T cells arising during chronic infection and changes in their progenitor T cell phenotype. Our studies revealed a dual cell-intrinsic role for CD38 in limiting proliferation and granzyme B production in virus-specific exhausted T cells while also promoting their survival. These data highlight new avenues for research into the mechanisms through which CD38 regulates the survival and metabolism of CD8+ T cell responses to viral infections.
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Affiliation(s)
- Julia M. DeRogatis
- Department of Molecular Biology and Biochemistry, School of Biological Sciences, University of California Irvine, Irvine, California, USA
| | - Emily N. Neubert
- Department of Molecular Biology and Biochemistry, School of Biological Sciences, University of California Irvine, Irvine, California, USA
- Center for Virus Research, University of California Irvine, Irvine, California, USA
| | - Karla M. Viramontes
- Department of Molecular Biology and Biochemistry, School of Biological Sciences, University of California Irvine, Irvine, California, USA
| | - Monique L. Henriquez
- Department of Molecular Biology and Biochemistry, School of Biological Sciences, University of California Irvine, Irvine, California, USA
| | - Dequina A. Nicholas
- Department of Molecular Biology and Biochemistry, School of Biological Sciences, University of California Irvine, Irvine, California, USA
| | - Roberto Tinoco
- Department of Molecular Biology and Biochemistry, School of Biological Sciences, University of California Irvine, Irvine, California, USA
- Center for Virus Research, University of California Irvine, Irvine, California, USA
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36
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Li B, Ding Z, Calbay O, Li Y, Li T, Jin L, Huang S. FAP is critical for ovarian cancer cell survival by sustaining NF-κB activation through recruitment of PRKDC in lipid rafts. Cancer Gene Ther 2023; 30:608-621. [PMID: 36494579 PMCID: PMC10498436 DOI: 10.1038/s41417-022-00575-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Revised: 11/18/2022] [Accepted: 11/29/2022] [Indexed: 12/13/2022]
Abstract
Fibroblast activation protein (FAP) is tumor-specific and plays an important role in tumorigenecity. However, agents against its enzymatic activity or extracellular presence were unsuccessful in the clinic for undefined reasons. Here we show that FAP expression is higher in advanced ovarian cancer and is only detected in invasive ovarian cancer cells. Silencing FAP induces apoptosis and FAP's enzymatic activity is dispensable for cell survival. To elucidate the cause of apoptosis, we find that NF-κB activity is diminished when FAP is depleted and BIRC5 (survivin) acts downstream of FAP-NF-κB axis to promote cell survival. To uncover the link between FAP and NF-κB activation, we reveal that PRKDC (DNA-PK, DNA-dependent protein kinase) forms complex with FAP and is required for NF-κB activation and cell survival. Remarkably, FAP-PRKDC interaction occurs only in lipid rafts, and depleting FAP prevents lipid raft localization of PRKDC. Given the known ability of PRKDC to direct NF-κB activation, these results suggest that FAP recruits PRKDC in lipid rafts for NF-κB activation. FAP's non-enzymatic role and functioning from lipid rafts for cell survival also offer an explanation on the failure of past FAP-targeted therapies. Finally, we demonstrate that EpCAM aptamer-delivered FAP siRNA impeded intraperitoneal xenograft development of ovary tumors.
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Affiliation(s)
- Bin Li
- Department of Anatomy and Cell Biology, University of Florida College of Medicine, Gainesville, FL, 32611, USA
| | - Zuo Ding
- Department of Anatomy and Cell Biology, University of Florida College of Medicine, Gainesville, FL, 32611, USA
| | - Ozlem Calbay
- Department of Anatomy and Cell Biology, University of Florida College of Medicine, Gainesville, FL, 32611, USA
| | - Yue Li
- Department of Anatomy and Cell Biology, University of Florida College of Medicine, Gainesville, FL, 32611, USA
| | - Tao Li
- Department of Anatomy and Cell Biology, University of Florida College of Medicine, Gainesville, FL, 32611, USA
| | - Lingtao Jin
- Deparment of Molecular Medicine, The University of Texas Health Science Center at San Antonio, San Antonio, TX, 78245, USA
| | - Shuang Huang
- Department of Anatomy and Cell Biology, University of Florida College of Medicine, Gainesville, FL, 32611, USA.
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37
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He XY, Wang XQ, Xiao QL, Liu D, Xu QR, Liu S. Long non-coding RNA NCK1-AS1 functions as a ceRNA to regulate cell viability and invasion in esophageal squamous cell carcinoma via microRNA-133b/ENPEP axis. Cell Cycle 2023; 22:596-609. [PMID: 36412985 PMCID: PMC9928473 DOI: 10.1080/15384101.2022.2138416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Revised: 01/04/2022] [Accepted: 10/17/2022] [Indexed: 11/23/2022] Open
Abstract
This study is designed to explore the role of long non-coding RNAs (lncRNAs) NCK1-AS1 in proliferative and invasive activities of esophageal squamous cell carcinoma (ESCC) cells by binding to microRNA-133b (miR-133b) to regulate ENPEP. Differentially expressed lncRNAs, miRs, genes and their targeting relationships were screened on ESCC-related gene expression datasets GSE17351 and GSE6188. The targeting relationships among NCK1-AS1, miR-133b, and ENPEP were verified using functional assays. Loss- and gain- of function assays were carried out to examine the roles of NCK1-AS1, miR-133b, and ENPEP in ESCC cell proliferative, invasive, migrative and apoptotic abilities as well as tumorigenesis in vivo. Elevated NCK1-AS1 and ENPEP but reduced miR-133b expression were found in ESCC. NCK1-AS1 knockdown or miR-133b overexpression inhibited the malignant properties of ESCC cells as well as tumorigenesis in vivo. NCK1-AS1 regulated the ENPEP expression by competitively binding to miR-133b. ENPEP overexpression reversed inhibition of NCK1-AS1 knockdown on the function of ESCC cells. This study provides evidence that silencing NCK1-AS1 inhibits expression of ENPEP by sponging miR-133b, thereby suppressing ESCC.
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Affiliation(s)
- Xiang-Yuan He
- Department of Thoracic Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, P. R. China
| | - Xiu-Qi Wang
- Department of Thoracic Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, P. R. China
| | - Qi-Lu Xiao
- Department of Thoracic Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, P. R. China
| | - Duan Liu
- Department of Thoracic Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, P. R. China
| | - Qi-Rong Xu
- Department of Thoracic Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, P. R. China
| | - Sheng Liu
- Department of Thoracic Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, P. R. China
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Rastogi N, Gonzalez JBM, Srivastava VK, Alanazi B, Alanazi RN, Hughes OM, O'Neill NS, Gilkes AF, Ashley N, Deshpande S, Andrews R, Mead A, Rodrigues NP, Knapper S, Darley RL, Tonks A. Nuclear factor I-C overexpression promotes monocytic development and cell survival in acute myeloid leukemia. Leukemia 2023; 37:276-287. [PMID: 36572750 PMCID: PMC9898032 DOI: 10.1038/s41375-022-01801-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 12/13/2022] [Accepted: 12/15/2022] [Indexed: 12/28/2022]
Abstract
Nuclear factor I-C (NFIC) belongs to a family of NFI transcription factors that binds to DNA through CAATT-boxes and are involved in cellular differentiation and stem cell maintenance. Here we show NFIC protein is significantly overexpressed in 69% of acute myeloid leukemia patients. Examination of the functional consequences of NFIC overexpression in HSPCs showed that this protein promoted monocytic differentiation. Single-cell RNA sequencing analysis further demonstrated that NFIC overexpressing monocytes had increased expression of growth and survival genes. In contrast, depletion of NFIC through shRNA decreased cell growth, increased cell cycle arrest and apoptosis in AML cell lines and AML patient blasts. Further, in AML cell lines (THP-1), bulk RNA sequencing of NFIC knockdown led to downregulation of genes involved in cell survival and oncogenic signaling pathways including mixed lineage leukemia-1 (MLL-1). Lastly, we show that NFIC knockdown in an ex vivo mouse MLL::AF9 pre-leukemic stem cell model, decreased their growth and colony formation and increased expression of myeloid differentiation markers Gr1 and Mac1. Collectively, our results suggest that NFIC is an important transcription factor in myeloid differentiation as well as AML cell survival and is a potential therapeutic target in AML.
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Affiliation(s)
- Namrata Rastogi
- Department of Haematology, Division of Cancer & Genetics, School of Medicine, Cardiff University, Cardiff, CF14 4XN, Wales, UK.
- European Cancer Stem Cell Research Institute, School of Biosciences, Cardiff University, Cardiff, CF24 4HQ, Wales, UK.
| | - Juan Bautista Menendez Gonzalez
- European Cancer Stem Cell Research Institute, School of Biosciences, Cardiff University, Cardiff, CF24 4HQ, Wales, UK
- Department of Stem Cell and Regenerative Biology, Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA
| | - Vikas Kumar Srivastava
- Department of Haematology, Division of Cancer & Genetics, School of Medicine, Cardiff University, Cardiff, CF14 4XN, Wales, UK
- Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK
| | - Bader Alanazi
- Department of Haematology, Division of Cancer & Genetics, School of Medicine, Cardiff University, Cardiff, CF14 4XN, Wales, UK
- Prince Mohammed Medical City, AlJouf, Saudi Arabia
- Research Center, King Fahad Medical City, Riyadh, Saudi Arabia
| | - Rehab N Alanazi
- Medical Laboratory Technology Department, College of Applied Medical Sciences, Northern Border University, Arar, 91431, Saudi Arabia
- Department of Haematology, Division of Cancer & Genetics, School of Medicine, Cardiff University, Cardiff, CF14 4XN, Wales, UK
| | - Owen M Hughes
- Department of Haematology, Division of Cancer & Genetics, School of Medicine, Cardiff University, Cardiff, CF14 4XN, Wales, UK
| | - Niamh S O'Neill
- Department of Haematology, Division of Cancer & Genetics, School of Medicine, Cardiff University, Cardiff, CF14 4XN, Wales, UK
| | - Amanda F Gilkes
- Department of Haematology, Division of Cancer & Genetics, School of Medicine, Cardiff University, Cardiff, CF14 4XN, Wales, UK
- Cardiff Experimental and Cancer Medicine Centre (ECMC), School of Medicine, Cardiff University, Cardiff, CF14 4XN, Wales, UK
| | - Neil Ashley
- Haematopoietic Stem Cell Biology Laboratory, Medical Research Council Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, OX3 9DS, UK
| | - Sumukh Deshpande
- Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK
| | - Robert Andrews
- Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK
| | - Adam Mead
- Haematopoietic Stem Cell Biology Laboratory, Medical Research Council Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, OX3 9DS, UK
| | - Neil P Rodrigues
- European Cancer Stem Cell Research Institute, School of Biosciences, Cardiff University, Cardiff, CF24 4HQ, Wales, UK
| | - Steve Knapper
- Department of Haematology, Division of Cancer & Genetics, School of Medicine, Cardiff University, Cardiff, CF14 4XN, Wales, UK
- Cardiff Experimental and Cancer Medicine Centre (ECMC), School of Medicine, Cardiff University, Cardiff, CF14 4XN, Wales, UK
| | - Richard L Darley
- Department of Haematology, Division of Cancer & Genetics, School of Medicine, Cardiff University, Cardiff, CF14 4XN, Wales, UK
| | - Alex Tonks
- Department of Haematology, Division of Cancer & Genetics, School of Medicine, Cardiff University, Cardiff, CF14 4XN, Wales, UK.
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Chen X, Adhikary G, Newland JJ, Xu W, Ma E, Naselsky W, Eckert RL. The transglutaminase 2 cancer cell survival factor maintains mTOR activity to drive an aggressive cancer phenotype. Mol Carcinog 2023; 62:90-100. [PMID: 35848131 PMCID: PMC9771885 DOI: 10.1002/mc.23446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 06/13/2022] [Accepted: 06/23/2022] [Indexed: 02/03/2023]
Abstract
Transglutaminase 2 (TG2) is an important cancer stem-like cell survival protein that is highly expressed in epidermal squamous cell carcinoma and drives an aggressive cancer phenotype. In the present study, we show that TG2 knockdown or inactivation results in a reduction in mammalian target of rapamycin (mTOR) level and activity in epidermal cancer stem-like cells which are associated with reduced spheroid formation, invasion, and migration, and reduced cancer stem cell and epithelial-mesenchymal transition (EMT) marker expression. Similar changes were observed in both cultured cells and tumors. mTOR knockdown or treatment with rapamycin phenocopies the reduction in spheroid formation, invasion, and migration, and cancer stem cell and EMT marker expression. Moreover, mTOR appears to be a necessary mediator of TG2 action, as a forced expression of constitutively active mTOR in TG2 knockdown cells partially restores the aggressive cancer phenotype and cancer stem cell and EMT marker expression. Tumor studies show that rapamycin reduces tumor growth and cancer stem cell marker expression and EMT. These studies suggest that TG2 stimulates mTOR activity to stimulate cancer cell stemness and EMT and drive aggressive tumor growth.
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Affiliation(s)
- Xi Chen
- Departments of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, Maryland
| | - Gautam Adhikary
- Departments of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, Maryland
| | - John J. Newland
- Surgery - Division of Thoracic Oncology, University of Maryland School of Medicine, Baltimore, Maryland
| | - Wen Xu
- Departments of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, Maryland
| | - Emily Ma
- Departments of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, Maryland
| | - Warren Naselsky
- Surgery - Division of Thoracic Oncology, University of Maryland School of Medicine, Baltimore, Maryland
| | - Richard L. Eckert
- Departments of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, Maryland
- Dermatology, University of Maryland School of Medicine, Baltimore, Maryland
- Marlene and Stewart Greenebaum Comprehensive Cancer Center, University of Maryland School of Medicine, Baltimore, Maryland
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40
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Zhang Y, Xu L, Ren Z, Liu X, Song J, Zhang P, Zhang C, Gong S, Wu N, Zhang X, Xie C, Lu Z, Ma M, Zhang Y, Chen Y, Lin C. LINC01615 maintains cell survival in adaptation to nutrient starvation through the pentose phosphate pathway and modulates chemosensitivity in colorectal cancer. Cell Mol Life Sci 2022; 80:20. [PMID: 36576581 DOI: 10.1007/s00018-022-04675-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 11/29/2022] [Accepted: 12/15/2022] [Indexed: 12/29/2022]
Abstract
Numerous mechanisms involved in promoting cancer cell survival under nutrient starvation have been described. Long noncoding RNAs (lncRNAs) have emerged as critical players in colorectal cancer (CRC) progression, but the role of lncRNAs in the progression of CRC under nutrient starvation has not been well clarified. Here, we identified a lncRNA, LINC01615, that was significantly upregulated in response to serum starvation. LINC01615 can contribute to the adaptation of CRC cells to serum-deprived conditions and enhance cell survival under similar conditions. LINC01615 activated the pentose phosphate pathway (PPP) under serum starvation, manifested as decreased ROS production and enhanced nucleotide and lipid synthesis. Glucose-6-phosphate dehydrogenase (G6PD) is a key rate-limiting enzyme of the PPP, and LINC01615 promoted G6PD expression by competitively binding with hnRNPA1 and facilitating G6PD pre-mRNA splicing. Moreover, we also found that serum starvation led to METTL3 degradation by inducing autophagy, which further increased the stability and level of LINC01615 in a m6A-dependent manner. LINC01615 knockdown combined with oxaliplatin achieved remarkable antitumor effects in PDO and PDX models. Collectively, our results demonstrated a novel adaptive survival mechanism permitting tumor cells to survive under limiting nutrient supplies and provided a potential therapeutic target for CRC.
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Affiliation(s)
- Yi Zhang
- Department of General Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221000, China
- Institute of Digestive Diseases, Xuzhou Medical University, Xuzhou, 221000, China
| | - Lei Xu
- Department of General Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221000, China
- Institute of Digestive Diseases, Xuzhou Medical University, Xuzhou, 221000, China
| | - Zeqiang Ren
- Department of General Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221000, China
| | - Xin Liu
- Department of Endocrinology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221000, China
| | - Jun Song
- Department of General Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221000, China
| | - Pengbo Zhang
- Department of General Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221000, China
| | - Chong Zhang
- Department of General Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221000, China
| | - Shuai Gong
- Department of General Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221000, China
| | - Nai Wu
- Department of General Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221000, China
| | - Xiuzhong Zhang
- Department of General Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221000, China
| | - Chanbin Xie
- Department of Gastrointestinal Surgery, The Third Xiangya Hospital of Central South University, Central South University, Changsha, 410013, Hunan, China
| | - Zhixing Lu
- Department of Gastrointestinal Surgery, The Third Xiangya Hospital of Central South University, Central South University, Changsha, 410013, Hunan, China
| | - Min Ma
- Department of Gastrointestinal Surgery, The Third Xiangya Hospital of Central South University, Central South University, Changsha, 410013, Hunan, China
| | - Yi Zhang
- Department of Gastrointestinal Surgery, The Third Xiangya Hospital of Central South University, Central South University, Changsha, 410013, Hunan, China
| | - Yifei Chen
- Department of Gastrointestinal Surgery, The Third Xiangya Hospital of Central South University, Central South University, Changsha, 410013, Hunan, China
- Department of Otolaryngology and Head Neck Surgery, Affiliated Changsha Hospital of Hunan Normal University, Changsha, China
| | - Changwei Lin
- Department of General Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221000, China.
- Department of Gastrointestinal Surgery, The Third Xiangya Hospital of Central South University, Central South University, Changsha, 410013, Hunan, China.
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Chen W, Zhang Y, Yin M, Cheng Z, Li D, Luo X, Liu X, Tu J. Circular RNA circPRDX3 mediates neuronal survival apoptosis in ischemic stroke by targeting miR-641 and NPR3. Brain Res 2022; 1797:148114. [PMID: 36208650 DOI: 10.1016/j.brainres.2022.148114] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Revised: 09/22/2022] [Accepted: 09/30/2022] [Indexed: 11/19/2022]
Abstract
OBJECTIVE circPRDX3 is a circular RNA (circRNA) that has received little attention yet. The purpose of this research is to elucidate circPRDX3 expression pattern and its underlying network in ischemic stroke (IS). METHODS Oxygen-glucose deprivation on/reoxygenation (OGD/R) and mice model of middle cerebral artery occlusion (MCAO) were used to generate IS model in N2a cells or mice, respectively. Expression levels of circPRDX3, miR-641, Natriuretic Peptide Receptor 3 (NPR3), and members of the mitogen-activated protein kinases (MAPK) pathway were determined using real-time quantitative PCR (qRT-PCR) and western blot. Cell viability was assessed by CCK-8 assay and apoptosis was evaluated using TUNEL staining and flow cytometry. Molecule-molecule interactions were verified by dual luciferase and RNA immunoprecipitation (RIP) assays. The infarcted area was depicted by Triphenyl tetrazolium chloride (TTC) staining and the level of neurological function was measured using National Institute of Health stroke scale (NIHSS). RESULTS CircPRDX3 and NPR3 were shown to be considerably downregulated in IS samples, as well as OGD/R cells or MCAO mice, while miR-641 was found to be significantly upregulated. A circPRDX3/miR-641/NPR3 mechinary was verified using luciferase and RIP assays. Overexpression of circPRDX3 dramatically reduced miR-641 expression and increased NPR3 expression, boosting cell survival and lowering apoptosis in an OGD/R model, either with inactivated MAPK signaling pathways. Moreover, overexpression of circPRDX3 lowered infarct volume and enhanced neurobehavioral outcomes in mice after MCAO, and these protective effects were dramatically abrogated by depletion of NPR3. CONCLUSION Altogether, circPRDX3 inhibited the development of IS by sponging miR-641, hence increasing NPR3 expression and inactivating MAPK pathway. These results may aid in the search of potential therapy targets for IS.
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Affiliation(s)
- Weiping Chen
- Department of Neurology, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, PR China; Institute of Neuroscience, Nanchang University, Nanchang 330006, Jiangxi Province, PR China
| | - Yangbo Zhang
- Department of Neurology, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, PR China; Institute of Neuroscience, Nanchang University, Nanchang 330006, Jiangxi Province, PR China
| | - Min Yin
- Department of Neurology, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, PR China; Institute of Neuroscience, Nanchang University, Nanchang 330006, Jiangxi Province, PR China
| | - Zhijuan Cheng
- Department of Neurology, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, PR China; Institute of Neuroscience, Nanchang University, Nanchang 330006, Jiangxi Province, PR China
| | - Dandan Li
- Department of Neurology, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, PR China; Institute of Neuroscience, Nanchang University, Nanchang 330006, Jiangxi Province, PR China
| | - Xin Luo
- Department of Neurology, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, PR China; Institute of Neuroscience, Nanchang University, Nanchang 330006, Jiangxi Province, PR China
| | - Xu Liu
- Department of Neurology, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, PR China; Institute of Neuroscience, Nanchang University, Nanchang 330006, Jiangxi Province, PR China.
| | - Jianglong Tu
- Department of Neurology, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, PR China; Institute of Neuroscience, Nanchang University, Nanchang 330006, Jiangxi Province, PR China.
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Lu T, Wu Y. Tripartite Motif Containing 26 is a Positive Predictor for Endometrial Carcinoma Patients and Regulates Cell Survival in Endometrial Carcinoma. Horm Metab Res 2022; 54:859-865. [PMID: 36108622 DOI: 10.1055/a-1926-7364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Functioning as an E3 ubiquitin ligase, tripartite motif containing 26 (TRIM26) can regulate the tumor behavior and the relevant inflammatory immune response. Endometrial carcinoma is a major gynecological malignant tumor in the world, while no relevant research has been performed. KMplot, a web-based survival analysis tool, demonstrated that TRIM26 expression was positively correlated with the overall survival in gynecological tumors, such as ovarian, cervical, and endometrial cancer. The relatively low expression of TRIM26 was also found in endometrial cancer tissues and endometrial cancer cell lines. In the online Gene Expression Profiling Interactive Analysis (GEPIA) platform, TRIM26 was positively correlated with the pre-apoptosis genes of p53, BIM, BID, BAX, and BAK, and negatively correlated with the anti-apoptosis gene of BCLW. To further explore the function of TRIM26 in endometrial carcinoma, Ishikawa and KLE cells were infected with PLVX-TRIM26-derived lentivirus. TRIM26 overexpression suppressed the growth of endometrial cells, with downregulated p-AKT and upregulated BIM and BID expression. PLVX-TRIM26 overexpressed Ishikawa cells were injected subcutaneously into the side flanks of male BALB/C nude mice to construct a TRIM26-overexpression xenograft model. TRIM26 overexpression suppressed the growth of endometrial cancer as indicated by downregulated tumor volume and tumor weight with downregulated p-AKT expression. TRIM26 could regulate AKT pathway and apoptosis process to inhibit the growth of endometrial carcinoma, which can be utilized as a survival predictor.
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Affiliation(s)
- Tanmin Lu
- Department of Gynecology and Obstetrics, Liaocheng People's Hospital, Liaocheng City, China
| | - Yu Wu
- Department of Gynecology and Obstetrics, Liaocheng People's Hospital, Liaocheng City, China
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Umehara T, Mori R, Murase T, Tanaka T, Kasai K, Ikematsu K, Sato H. rno-miR-203a-3p and Mex3B contribute to cell survival of iliopsoas muscle via the Socs3-Casp3 axis under severe hypothermia in rats. Leg Med (Tokyo) 2022; 59:102150. [PMID: 36198254 DOI: 10.1016/j.legalmed.2022.102150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 09/06/2022] [Accepted: 09/16/2022] [Indexed: 02/05/2023]
Abstract
Forensic diagnosis of fatal hypothermia is considered difficult because no specific findings, such as molecular markers, have been identified. Therefore, determining the molecular mechanism in hypothermia and identifying novel molecular markers to assist in diagnosing fatal hypothermia are important. This study aimed to investigate microRNA (miRNA) and mRNA expression in iliopsoas muscle, which plays a role in homeostasis in mammals, to resolve the molecular mechanism in hypothermia. We generated rat models of mild, moderate, and severe hypothermia, then performed body temperature-dependent miRNA and mRNA expression analysis of the iliopsoas muscle using microarray and next-generation sequencing. Analysis showed that rno-miR-203a-3p expression was lower with decreasing body temperature, while Socs3 expression was significantly increased only by severe hypothermia. Luciferase reporter assays suggested that Socs3 expression is regulated by rno-miR-203a-3p. Socs3 and Mex3B small interfering RNA-mediated knockdown showed that suppressing Mex3B could induce the activation of Socs3, followed by a change in caspase 3/7 activity and adenosine triphosphate levels in iliopsoas muscle cells. These findings indicate that rno-miR-203a-3p and Mex3B are deactivated by a decrease in body temperature, whereby it contributes to suppressing apoptosis by accelerating Socs3. Accordingly, the rno-miR-203a-3p-Socs3-Casp3 or Mex3B-Socs3-Casp3 axis may be the part of the biological defense response to maintain homeostasis under extreme hypothermia.
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Affiliation(s)
- Takahiro Umehara
- Department of Forensic Medicine, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu, Fukuoka 807-8555, Japan.
| | - Ryoichi Mori
- Department of Pathology, Nagasaki University, School of Medicine and Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki, Nagasaki 852-8523, Japan
| | - Takehiko Murase
- Division of Forensic Pathology and Science, Unit of Social Medicine, Course of Medical and Dental Sciences, Graduate School of Biomedical Sciences, Nagasaki University School of Medicine, 1-12-4 Sakamoto, Nagasaki, Nagasaki 852-8523, Japan
| | - Toshiko Tanaka
- Department of Forensic Medicine, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu, Fukuoka 807-8555, Japan
| | - Kentaro Kasai
- Department of Forensic Medicine, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu, Fukuoka 807-8555, Japan
| | - Kazuya Ikematsu
- Division of Forensic Pathology and Science, Unit of Social Medicine, Course of Medical and Dental Sciences, Graduate School of Biomedical Sciences, Nagasaki University School of Medicine, 1-12-4 Sakamoto, Nagasaki, Nagasaki 852-8523, Japan
| | - Hiroaki Sato
- Department of Forensic Medicine, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu, Fukuoka 807-8555, Japan
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Morais CM, Cardoso AM, Araújo ARD, Reis A, Domingues P, Domingues MRM, de Lima MCP, Jurado AS. Stearoyl CoA Desaturase-1 Silencing in Glioblastoma Cells: Phospholipid Remodeling and Cytotoxicity Enhanced upon Autophagy Inhibition. Int J Mol Sci 2022; 23:13014. [PMID: 36361811 PMCID: PMC9654881 DOI: 10.3390/ijms232113014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 10/18/2022] [Accepted: 10/21/2022] [Indexed: 09/29/2023] Open
Abstract
Modulation of lipid metabolism is a well-established cancer hallmark, and SCD1 has been recognized as a key enzyme in promoting cancer cell growth, including in glioblastoma (GBM), the deadliest brain tumor and a paradigm of cancer resistance. The central goal of this work was to identify, by MS, the phospholipidome alterations resulting from the silencing of SCD1 in human GBM cells, in order to implement an innovative therapy to fight GBM cell resistance. With this purpose, RNAi technology was employed, and low serum-containing medium was used to mimic nutrient deficiency conditions, at which SCD1 is overexpressed. Besides the expected increase in the saturated to unsaturated fatty acid ratio in SCD1 silenced-GBM cells, a striking increase in polyunsaturated chains, particularly in phosphatidylethanolamine and cardiolipin species, was noticed and tentatively correlated with an increase in autophagy (evidenced by the increase in LC3BII/I ratio). The contribution of autophagy to mitigate the impact of SCD1 silencing on GBM cell viability and growth, whose modest inhibition could be correlated with the maintenance of energetically associated mitochondria, was evidenced by using autophagy inhibitors. In conclusion, SCD1 silencing could constitute an important tool to halt GBM resistance to the available treatments, especially when coupled with a mitochondria disrupter chemotherapeutic.
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Affiliation(s)
- Catarina M. Morais
- Department of Life Sciences, University of Coimbra, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal
- CNC—Centre for Neuroscience and Cell Biology, CIIB—Centre for Innovative Biomedicine and Biotechnology, IIIUC—Institute for Interdisciplinary Research, University of Coimbra, 3004-504 Coimbra, Portugal
| | - Ana M. Cardoso
- CNC—Centre for Neuroscience and Cell Biology, CIIB—Centre for Innovative Biomedicine and Biotechnology, IIIUC—Institute for Interdisciplinary Research, University of Coimbra, 3004-504 Coimbra, Portugal
| | - Ana Rita D. Araújo
- Mass Spectrometry Centre, LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Santiago University Campus, 3810-193 Aveiro, Portugal
| | - Ana Reis
- Mass Spectrometry Centre, LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Santiago University Campus, 3810-193 Aveiro, Portugal
| | - Pedro Domingues
- Mass Spectrometry Centre, LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Santiago University Campus, 3810-193 Aveiro, Portugal
| | - Maria Rosário M. Domingues
- Mass Spectrometry Centre, LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Santiago University Campus, 3810-193 Aveiro, Portugal
- CESAM—Centre for Environmental and Marine Studies, Department of Chemistry, University of Aveiro, Santiago University Campus, 3810-193 Aveiro, Portugal
| | - Maria C. Pedroso de Lima
- CNC—Centre for Neuroscience and Cell Biology, CIIB—Centre for Innovative Biomedicine and Biotechnology, IIIUC—Institute for Interdisciplinary Research, University of Coimbra, 3004-504 Coimbra, Portugal
| | - Amália S. Jurado
- Department of Life Sciences, University of Coimbra, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal
- CNC—Centre for Neuroscience and Cell Biology, CIIB—Centre for Innovative Biomedicine and Biotechnology, IIIUC—Institute for Interdisciplinary Research, University of Coimbra, 3004-504 Coimbra, Portugal
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Mitra A, Vo L, Soukar I, Chaubal A, Greenberg ML, Pile LA. Isoforms of the transcriptional cofactor SIN3 differentially regulate genes necessary for energy metabolism and cell survival. Biochim Biophys Acta Mol Cell Res 2022; 1869:119322. [PMID: 35820484 PMCID: PMC10557476 DOI: 10.1016/j.bbamcr.2022.119322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 06/28/2022] [Accepted: 06/29/2022] [Indexed: 11/24/2022]
Abstract
The SIN3 scaffolding protein is a conserved transcriptional regulator known to fine-tune gene expression. In Drosophila, there are two major isoforms of SIN3, SIN3 220 and SIN3 187, which each assemble into multi-subunit histone modifying complexes. The isoforms have distinct developmental expression patterns and non-redundant functions. Gene regulatory network analyses indicate that both isoforms affect genes encoding proteins in pathways such as the cell cycle and cell morphogenesis. Interestingly, the SIN3 187 isoform uniquely regulates a subset of pathways including post-embryonic development, phosphate metabolism and apoptosis. Target genes in the phosphate metabolism pathway include nuclear-encoded mitochondrial genes coding for proteins responsible for oxidative phosphorylation. Here, we investigate the physiological effects of SIN3 isoforms on energy metabolism and cell survival. We find that ectopic expression of SIN3 187 represses expression of several nuclear-encoded mitochondrial genes affecting production of ATP and generation of reactive oxygen species (ROS). Forced expression of SIN3 187 also activates several pro-apoptotic and represses a few anti-apoptotic genes. In the SIN3 187 expressing cells, these gene expression patterns are accompanied with an increased sensitivity to paraquat-mediated oxidative stress. These findings indicate that SIN3 187 influences the regulation of mitochondrial function, apoptosis and oxidative stress response in ways that are dissimilar from SIN3 220. The data suggest that the distinct SIN3 histone modifying complexes are deployed in different cellular contexts to maintain cellular homeostasis.
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Affiliation(s)
- Anindita Mitra
- Department of Biological Sciences, Wayne State University, Detroit, MI 48202, United States of America
| | - Linh Vo
- Department of Biological Sciences, Wayne State University, Detroit, MI 48202, United States of America
| | - Imad Soukar
- Department of Biological Sciences, Wayne State University, Detroit, MI 48202, United States of America
| | - Ashlesha Chaubal
- Department of Biological Sciences, Wayne State University, Detroit, MI 48202, United States of America; Integrative Program for Biological and Genome Sciences, University of North Carolina, Chapel Hill, NC 27599, United States of America
| | - Miriam L Greenberg
- Department of Biological Sciences, Wayne State University, Detroit, MI 48202, United States of America
| | - Lori A Pile
- Department of Biological Sciences, Wayne State University, Detroit, MI 48202, United States of America.
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Zhang Y, Liu Z, Wang X, Jian H, Xiao H, Wen T. SHMT2 promotes cell viability and inhibits ROS-dependent, mitochondrial-mediated apoptosis via the intrinsic signaling pathway in bladder cancer cells. Cancer Gene Ther 2022; 29:1514-1527. [PMID: 35422087 DOI: 10.1038/s41417-022-00470-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 03/16/2022] [Accepted: 03/30/2022] [Indexed: 11/08/2022]
Abstract
Mitochondrial serine hydroxymethyltransferase (SHMT2) catalyzes the conversion of serine to glycine and concomitantly produces one-carbon units to support cell growth and is upregulated in various cancer cells. SHMT2 knockdown triggers cell apoptosis; however, the detailed mechanism of apoptosis induced by SHMT2 inactivation remains unknown. Here, we demonstrate that SHMT2 supports the proliferation of bladder cancer (BC) cells by maintaining redox homeostasis. SHMT2 knockout decreased the pools of purine and one-carbon units and delayed cell cycle progression in a manner that was rescued by formate, demonstrating that SHMT2-mediated one-carbon units are essential for BC cell proliferation. SHMT2 deficiency promoted the accumulation of intracellular reactive oxygen species (ROS) by decreasing the NADH/NAD+, NADPH/NADP+, and GSH/GSSG ratios, leading to a loss in mitochondrial membrane potential, release of cytochrome c, translocation of Bcl-2 family protein and activation of caspase-3. Notably, blocking ROS production with the one-carbon donor formate and the ROS scavenger N-acetyl-cysteine (NAC) effectively rescued SHMT2 deficiency-induced cell apoptosis via the intrinsic signaling pathway. Treatment with the SHMT inhibitor SHIN1 resulted in a significant inhibitory effect on cell proliferation and induced cell apoptosis. Formate and NAC rescued SHIN1-induced cell apoptosis. Our findings reveal an important mechanism by which the loss of SHMT2 triggers ROS-dependent, mitochondrial-mediated apoptosis, which gives insight into the link between serine metabolism and cell apoptosis and provides a promising target for BC treatment and drug discovery.
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Affiliation(s)
- Yun Zhang
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, 100101, Beijing, China
- Innovation Academy for Green Manufacture, Chinese Academy of Sciences, 100190, Beijing, China
| | - Zhe Liu
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, 100101, Beijing, China
- University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Xueliang Wang
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, 100101, Beijing, China
- University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Hui Jian
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, 100101, Beijing, China
- University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Haihan Xiao
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, 100101, Beijing, China
- University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Tingyi Wen
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, 100101, Beijing, China.
- Innovation Academy for Green Manufacture, Chinese Academy of Sciences, 100190, Beijing, China.
- Savaid Medical School, University of Chinese Academy of Sciences, 100049, Beijing, China.
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Konis SMR, Hughes JR, Parsons JL. TRIM26 Maintains Cell Survival in Response to Oxidative Stress through Regulating DNA Glycosylase Stability. Int J Mol Sci 2022; 23:ijms231911613. [PMID: 36232914 PMCID: PMC9569934 DOI: 10.3390/ijms231911613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 09/26/2022] [Accepted: 09/27/2022] [Indexed: 11/16/2022] Open
Abstract
Oxidative DNA base lesions in DNA are repaired through the base excision repair (BER) pathway, which consequently plays a vital role in the maintenance of genome integrity and in suppressing mutagenesis. 8-oxoguanine DNA glycosylase (OGG1), endonuclease III-like protein 1 (NTH1), and the endonuclease VIII-like proteins 1-3 (NEIL1-3) are the key enzymes that initiate repair through the excision of the oxidized base. We have previously identified that the E3 ubiquitin ligase tripartite motif 26 (TRIM26) controls the cellular response to oxidative stress through regulating both NEIL1 and NTH1, although its potential, broader role in BER is unclear. We now show that TRIM26 is a central player in determining the response to different forms of oxidative stress. Using siRNA-mediated knockdowns, we demonstrate that the resistance of cells to X-ray radiation and hydrogen peroxide generated as a consequence of trim26 depletion can be reversed through suppression of selective DNA glycosylases. In particular, a knockdown of neil1 or ogg1 can enhance sensitivity and DNA repair rates in response to X-rays, whereas a knockdown of neil1 or neil3 can produce the same effect in response to hydrogen peroxide. Our study, therefore, highlights the importance of TRIM26 in balancing cellular DNA glycosylase levels required for an efficient BER response.
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Affiliation(s)
- Sifaddin M. R. Konis
- Department of Molecular and Clinical Cancer Medicine, University of Liverpool, 6 West Derby Street, Liverpool L7 8TX, UK
| | - Jonathan R. Hughes
- Department of Molecular and Clinical Cancer Medicine, University of Liverpool, 6 West Derby Street, Liverpool L7 8TX, UK
| | - Jason L. Parsons
- Department of Molecular and Clinical Cancer Medicine, University of Liverpool, 6 West Derby Street, Liverpool L7 8TX, UK
- Clatterbridge Cancer Centre NHS Foundation Trust, Clatterbridge Road, Bebington CH63 4JY, UK
- Correspondence: ; Tel.: +44-151-794-8848
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Lu F, Fang D, Li S, Zhong Z, Jiang X, Qi Q, Liu Y, Zhang W, Xu X, Liu Y, Zhu W, Jiang L. Thioredoxin 1 supports colorectal cancer cell survival and promotes migration and invasion under glucose deprivation through interaction with G6PD. Int J Biol Sci 2022; 18:5539-5553. [PMID: 36147458 PMCID: PMC9461668 DOI: 10.7150/ijbs.71809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 08/18/2022] [Indexed: 11/17/2022] Open
Abstract
Overcoming energy stress is a critical step for cells in solid tumors. Under this stress microenvironment, cancer cells significantly alter their energy metabolism to maintain cell survival and even metastasis. Our previous studies have shown that thioredoxin-1 (Trx-1) expression is increased in colorectal cancer (CRC) and promotes cell proliferation. However, the exact role and mechanism of how Trx-1 is involved in energy stress are still unknown. Here, we observed that glucose deprivation of CRC cells led to cell death and promoted the migration and invasion, accompanied by upregulation of Trx-1. Increased Trx-1 supported CRC cell survival under glucose deprivation. Whereas knockdown of Trx-1 sensitized CRC cells to glucose deprivation-induced cell death and reversed glucose deprivation-induced migration, invasion, and epithelial-mesenchymal transition (EMT). Furthermore, we identified glucose-6-phosphate dehydrogenase (G6PD) interacting with Trx-1 by HuPortTM human protein chip, co-IP and co-localization. Trx-1 promoted G6PD protein expression and activity under glucose deprivation, thereby increasing nicotinamide adenine dinucleotide phosphate (NADPH) generation. Moreover, G6PD knockdown sensitized CRC cells to glucose deprivation-induced cell death and suppressed glucose deprivation-induced migration, invasion, and EMT. Inhibition of Trx-1 and G6PD, together with inhibition of glycolysis using 2-deoxy-D-glucose (2DG), resulted in significant anti-tumor effects in CRC xenografts in vivo. These findings demonstrate a novel mechanism and may represent a new effective therapeutic regimen for CRC.
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Affiliation(s)
- Fengying Lu
- Central Laboratory, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
- Changzhou maternal and Child Health Care Hospital, Changzhou Medical Center, Nanjing Medical University, Changzhou, 213000, China
| | - Daoquan Fang
- Central Laboratory, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Shuhan Li
- Central Laboratory, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Zuyue Zhong
- Central Laboratory, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Xiujiao Jiang
- Central Laboratory, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Qinqin Qi
- Central Laboratory, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Yining Liu
- Central Laboratory, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Wenqi Zhang
- Central Laboratory, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Xiaohui Xu
- Central Laboratory, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Yangyang Liu
- Central Laboratory, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Weijian Zhu
- Central Laboratory, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Lei Jiang
- Central Laboratory, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
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49
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Jacobi A, Tran NM, Yan W, Benhar I, Tian F, Schaffer R, He Z, Sanes JR. Overlapping transcriptional programs promote survival and axonal regeneration of injured retinal ganglion cells. Neuron 2022; 110:2625-2645.e7. [PMID: 35767994 PMCID: PMC9391321 DOI: 10.1016/j.neuron.2022.06.002] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 04/08/2022] [Accepted: 06/03/2022] [Indexed: 12/12/2022]
Abstract
Injured neurons in the adult mammalian central nervous system often die and seldom regenerate axons. To uncover transcriptional pathways that could ameliorate these disappointing responses, we analyzed three interventions that increase survival and regeneration of mouse retinal ganglion cells (RGCs) following optic nerve crush (ONC) injury, albeit not to a clinically useful extent. We assessed gene expression in each of 46 RGC types by single-cell transcriptomics following ONC and treatment. We also compared RGCs that regenerated with those that survived but did not regenerate. Each intervention enhanced survival of most RGC types, but type-independent axon regeneration required manipulation of multiple pathways. Distinct computational methods converged on separate sets of genes selectively expressed by RGCs likely to be dying, surviving, or regenerating. Overexpression of genes associated with the regeneration program enhanced both survival and axon regeneration in vivo, indicating that mechanistic analysis can be used to identify novel therapeutic strategies.
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Affiliation(s)
- Anne Jacobi
- F.M. Kirby Neurobiology Center, Boston Children's Hospital, and Department of Neurology, Harvard Medical School, 300 Longwood Avenue, Boston, MA 02115, USA; Department of Molecular and Cellular Biology, Center for Brain Science, Harvard University, 52 Oxford Street, Cambridge, MA 02138, USA
| | - Nicholas M Tran
- Department of Molecular and Cellular Biology, Center for Brain Science, Harvard University, 52 Oxford Street, Cambridge, MA 02138, USA; Department of Molecular and Human Genetics, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX 77030, USA
| | - Wenjun Yan
- Department of Molecular and Cellular Biology, Center for Brain Science, Harvard University, 52 Oxford Street, Cambridge, MA 02138, USA
| | - Inbal Benhar
- Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA
| | - Feng Tian
- F.M. Kirby Neurobiology Center, Boston Children's Hospital, and Department of Neurology, Harvard Medical School, 300 Longwood Avenue, Boston, MA 02115, USA
| | - Rebecca Schaffer
- Department of Molecular and Cellular Biology, Center for Brain Science, Harvard University, 52 Oxford Street, Cambridge, MA 02138, USA
| | - Zhigang He
- F.M. Kirby Neurobiology Center, Boston Children's Hospital, and Department of Neurology, Harvard Medical School, 300 Longwood Avenue, Boston, MA 02115, USA.
| | - Joshua R Sanes
- Department of Molecular and Cellular Biology, Center for Brain Science, Harvard University, 52 Oxford Street, Cambridge, MA 02138, USA.
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50
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Yang FM, Shen L, Fan DD, Chen KH, Lee J. DMGV Is a Rheostat of T Cell Survival and a Potential Therapeutic for Inflammatory Diseases and Cancers. Front Immunol 2022; 13:918241. [PMID: 35990633 PMCID: PMC9389583 DOI: 10.3389/fimmu.2022.918241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 06/13/2022] [Indexed: 11/13/2022] Open
Abstract
Activated effector T cells (Teff) and/or compromised regulatory T cells (Treg) underlie many chronic inflammatory diseases. We discovered a novel pathway to regulate survival and expansion of Teff without compromising Treg survival and a potential therapeutic to treat these diseases. We found dimethylguanidino valeric acid (DMGV) as a rheostat for Teff survival: while cell-intrinsic DMGV generated by Alanine-Glyoxylate Aminotransferase 2 (AGXT2) is essential for survival and expansion by inducing mitochondrial ROS and regulation of glycolysis, an excessive (or exogenous) DMGV level inhibits activated Teff survival, thereby the AGXT2-DMGV-ROS axis functioning as a switch to turn on and off Teff expansion. DMGV-induced ROS is essential for glycolysis in Teff, and paradoxically DMGV induces ROS only when glycolysis is active. Mechanistically, DMGV rapidly activates mitochondrial calcium uniporter (MCU), causing a surge in mitochondrial Ca2+ without provoking calcium influx to the cytosol. The mitochondrial Ca2+ surge in turn triggers the mitochondrial Na+/Ca2+ exchanger (NCLX) and the subsequent mitochondrial Na+ import induces ROS by uncoupling the Coenzyme Q cycle in Complex III of the electron transport chain. In preclinical studies, DMGV administration significantly diminished the number of inflammatory T cells, effectively suppressing chronic inflammation in mouse models of colitis and rheumatoid arthritis. DMGV also suppressed expansion of cancer cells in vitro and in a mouse T cell leukemic model by the same mechanism. Our data provide a new pathway regulating T cell survival and a novel mode to treat autoimmune diseases and cancers.
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Affiliation(s)
- Fengyuan Mandy Yang
- School of Basic Medical Sciences, Guangdong Provincial Key Laboratory of Allergy & Clinical Immunology, and the State Key Laboratory of Respiratory Diseases, Guangzhou Medical University, Guangzhou, China
| | - Liya Shen
- School of Basic Medical Sciences, Guangdong Provincial Key Laboratory of Allergy & Clinical Immunology, and the State Key Laboratory of Respiratory Diseases, Guangzhou Medical University, Guangzhou, China
| | - Dengxia Denise Fan
- School of Basic Medical Sciences, Guangdong Provincial Key Laboratory of Allergy & Clinical Immunology, and the State Key Laboratory of Respiratory Diseases, Guangzhou Medical University, Guangzhou, China
| | - Kuan-Hung Chen
- Department of Orthopedics, The 1st Affiliated Hospital of Sun Yat-sen University, Guangdong, China
| | - Jongdae Lee
- School of Basic Medical Sciences, Guangdong Provincial Key Laboratory of Allergy & Clinical Immunology, and the State Key Laboratory of Respiratory Diseases, Guangzhou Medical University, Guangzhou, China
- *Correspondence: Jongdae Lee,
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