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Vedovatto S, Oliveira FD, Pereira LC, Scheffel TB, Beckenkamp LR, Bertoni APS, Wink MR, Lenz G. CD73 mitigates ZEB1 expression in papillary thyroid carcinoma. Cell Commun Signal 2024; 22:145. [PMID: 38388432 PMCID: PMC10882796 DOI: 10.1186/s12964-024-01522-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 02/10/2024] [Indexed: 02/24/2024] Open
Abstract
BACKGROUND ZEB1, a core transcription factor involved in epithelial-mesenchymal transition (EMT), is associated with aggressive cancer cell behavior, treatment resistance, and poor prognosis across various tumor types. Similarly, the expression and activity of CD73, an ectonucleotidase implicated in adenosine generation, is an important marker of tumor malignancy. Growing evidence suggests that EMT and the adenosinergic pathway are intricately linked and play a pivotal role in cancer development. Therefore, this study focuses on exploring the correlations between CD73 and ZEB1, considering their impact on tumor progression. METHODS We employed CRISPR/Cas9 technology to silence CD73 expression in cell lines derived from papillary thyroid carcinoma. These same cells underwent lentiviral transduction of a reporter of ZEB1 non-coding RNA regulation. We conducted studies on cell migration using scratch assays and analyses of cellular speed and polarity. Additionally, we examined ZEB1 reporter expression through flow cytometry and immunocytochemistry, complemented by Western blot analysis for protein quantification. For further insights, we applied gene signatures representing different EMT states in an RNA-seq expression analysis of papillary thyroid carcinoma samples from The Cancer Genome Atlas. RESULTS Silencing CD73 expression led to a reduction in ZEB1 non-coding RNA regulation reporter expression in a papillary thyroid carcinoma-derived cell line. Additionally, it also mitigated ZEB1 protein expression. Moreover, the expression of CD73 and ZEB1 was correlated with alterations in cell morphology characteristics crucial for cell migration, promoting an increase in cell polarity index and cell migration speed. RNA-seq analysis revealed higher expression of NT5E (CD73) in samples with BRAF mutations, accompanied by a prevalence of partial-EMT/hybrid state signature expression. CONCLUSIONS Collectively, our findings suggest an association between CD73 expression and/or activity and the post-transcriptional regulation of ZEB1 by non-coding RNA, indicating a reduction in its absence. Further investigations are warranted to elucidate the relationship between CD73 and ZEB1, with the potential for targeting them as therapeutic alternatives for cancer treatment in the near future.
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Affiliation(s)
- Samlai Vedovatto
- Department of Biophysics, Federal University of Rio Grande do Sul, Av. Bento Gonçalves, 9500, Prédio 43431, sala 107, UFRGS, Porto Alegre, RS, Brazil
| | - Fernanda Dittrich Oliveira
- Department of Biophysics, Federal University of Rio Grande do Sul, Av. Bento Gonçalves, 9500, Prédio 43431, sala 107, UFRGS, Porto Alegre, RS, Brazil
| | - Luiza Cherobini Pereira
- Department of Biophysics, Federal University of Rio Grande do Sul, Av. Bento Gonçalves, 9500, Prédio 43431, sala 107, UFRGS, Porto Alegre, RS, Brazil
| | - Thamiris Becker Scheffel
- Department of Biophysics, Federal University of Rio Grande do Sul, Av. Bento Gonçalves, 9500, Prédio 43431, sala 107, UFRGS, Porto Alegre, RS, Brazil
- Brain Institute of Rio Grande do Sul, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Liziane Raquel Beckenkamp
- Department of Basics Health Sciences and Laboratory of Cell Biology, Federal University of Health Sciences of Porto Alegre, Porto Alegre, RS, Brazil
| | - Ana Paula Santin Bertoni
- Department of Basics Health Sciences and Laboratory of Cell Biology, Federal University of Health Sciences of Porto Alegre, Porto Alegre, RS, Brazil
| | - Márcia Rosângela Wink
- Department of Basics Health Sciences and Laboratory of Cell Biology, Federal University of Health Sciences of Porto Alegre, Porto Alegre, RS, Brazil
| | - Guido Lenz
- Department of Biophysics, Federal University of Rio Grande do Sul, Av. Bento Gonçalves, 9500, Prédio 43431, sala 107, UFRGS, Porto Alegre, RS, Brazil.
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Seifert J, Küchler C, Drube S. ATP/IL-33-Co-Sensing by Mast Cells (MCs) Requires Activated c-Kit to Ensure Effective Cytokine Responses. Cells 2023; 12:2696. [PMID: 38067124 PMCID: PMC10705958 DOI: 10.3390/cells12232696] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 11/10/2023] [Accepted: 11/22/2023] [Indexed: 12/18/2023] Open
Abstract
Mast cells (MCs) are sentinel cells which represent an important part of the first line of defense of the immune system. MCs highly express receptors for danger-associated molecular patterns (DAMPs) such as the IL-33R and P2X7, making MCs to potentially effective sensors for IL-33 and adenosine-triphosphate (ATP), two alarmins which are released upon necrosis-induced cell damage in peripheral tissues. Besides receptors for alarmins, MCs also express the stem cell factor (SCF) receptor c-Kit, which typically mediates MC differentiation, proliferation and survival. By using bone marrow-derived MCs (BMMCs), ELISA and flow cytometry experiments, as well as p65/RelA and NFAT reporter MCs, we aimed to investigate the influence of SCF on alarmin-induced signaling pathways and the resulting cytokine production and degranulation. We found that the presence of SCF boosted the cytokine production but not degranulation in MCs which simultaneously sense ATP and IL-33 (ATP/IL-33 co-sensing). Therefore, we conclude that SCF maintains the functionality of MCs in peripheral tissues to ensure appropriate MC reactions upon cell damage, induced by pathogens or allergens.
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Affiliation(s)
- Johanna Seifert
- Institut für Immunologie, Universitätsklinikum Jena, Friedrich-Schiller-Universität Jena, Leutragraben 3, 07743 Jena, Germany
| | - Claudia Küchler
- Institut für Immunologie, Universitätsklinikum Jena, Friedrich-Schiller-Universität Jena, Leutragraben 3, 07743 Jena, Germany
| | - Sebastian Drube
- Institut für Immunologie, Universitätsklinikum Jena, Friedrich-Schiller-Universität Jena, Leutragraben 3, 07743 Jena, Germany
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Sluyter R. Purinergic Signalling in Physiology and Pathophysiology. Int J Mol Sci 2023; 24:ijms24119196. [PMID: 37298149 DOI: 10.3390/ijms24119196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 05/19/2023] [Indexed: 06/12/2023] Open
Abstract
Since its inception by the late Geoffrey Burnstock in the early 1970s [...].
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Affiliation(s)
- Ronald Sluyter
- Molecular Horizons and School of Chemistry and Molecular Bioscience, University of Wollongong, Wollongong, NSW 2522, Australia
- Illawarra Health and Medical Research Institute, Wollongong, NSW 2522, Australia
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