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de Souza Nicoletti A, Berlofa Visacri M, Regina da Silva Correa da Ronda C, Tiemi Siguemoto J, Motta Neri C, Nogueira de Souza R, de Souza Ventura D, Eguti A, Ferreira de Souza Silva L, Wesley Perroud Junior M, Buosi K, Jalalizadeh M, Dionato F, Dal Col L, Giacomelli C, Leme P, Oliveira Reis L, Augusto Dos Santos L, Durán N, José Fávaro W, Luiz da Costa J, Dagli-Hernandez C, Moriel P, de Carvalho Pincinato E. Increased expression of miR-320b in blood plasma of patients in response to SARS-CoV-2 infection. Sci Rep 2024; 14:13702. [PMID: 38871789 PMCID: PMC11176351 DOI: 10.1038/s41598-024-64325-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Accepted: 06/07/2024] [Indexed: 06/15/2024] Open
Abstract
Coronavirus disease 2019 (COVID-19) is caused by Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2). Recent research has demonstrated how epigenetic mechanisms regulate the host-virus interactions in COVID-19. It has also shown that microRNAs (miRNAs) are one of the three fundamental mechanisms of the epigenetic regulation of gene expression and play an important role in viral infections. A pilot study published by our research group identified, through next-generation sequencing (NGS), that miR-4433b-5p, miR-320b, and miR-16-2-3p are differentially expressed between patients with COVID-19 and controls. Thus, the objectives of this study were to validate the expression of these miRNAs using quantitative real-time polymerase chain reaction (qRT-PCR) and to perform in silico analyses. Patients with COVID-19 (n = 90) and healthy volunteers (n = 40) were recruited. MiRNAs were extracted from plasma samples and validated using qRT-PCR. In addition, in silico analyses were performed using mirPath v.3 software. MiR-320b was the only miRNA upregulated in the case group com-pared to the control group. The in silico analyses indicated the role of miR-320b in the regulation of the KITLG gene and consequently in the inflammatory process. This study confirmed that miR-320b can distinguish patients with COVID-19 from control participants; however, further research is needed to determine whether this miRNA can be used as a target or a biomarker.
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Affiliation(s)
| | | | | | - Julia Tiemi Siguemoto
- School of Medical Science, Universidade Estadual de Campinas (UNICAMP), Campinas, SP, Brazil
| | - Carolini Motta Neri
- Faculty of Pharmaceutical Science, Universidade Estadual de Campinas (UNICAMP), Campinas, SP, Brazil
| | | | | | - Adriana Eguti
- Hospital Estadual de Sumaré Dr. Leandro Francheschini, Sumaré, SP, Brazil
| | | | - Mauricio Wesley Perroud Junior
- School of Medical Science, Universidade Estadual de Campinas (UNICAMP), Campinas, SP, Brazil
- Hospital Estadual de Sumaré Dr. Leandro Francheschini, Sumaré, SP, Brazil
| | - Keini Buosi
- School of Medical Science, Universidade Estadual de Campinas (UNICAMP), Campinas, SP, Brazil
| | - Mehrsa Jalalizadeh
- School of Medical Science, Universidade Estadual de Campinas (UNICAMP), Campinas, SP, Brazil
| | - Franciele Dionato
- School of Medical Science, Universidade Estadual de Campinas (UNICAMP), Campinas, SP, Brazil
| | - Luciana Dal Col
- School of Medical Science, Universidade Estadual de Campinas (UNICAMP), Campinas, SP, Brazil
| | - Cristiane Giacomelli
- School of Medical Science, Universidade Estadual de Campinas (UNICAMP), Campinas, SP, Brazil
| | - Patrícia Leme
- School of Medical Science, Universidade Estadual de Campinas (UNICAMP), Campinas, SP, Brazil
| | - Leonardo Oliveira Reis
- School of Medical Science, Universidade Estadual de Campinas (UNICAMP), Campinas, SP, Brazil
- School of Life Sciences, Pontifical Catholic University of Campinas (PUC-Campinas), Campinas, SP, Brazil
| | | | - Nelson Durán
- School of Medical Science, Universidade Estadual de Campinas (UNICAMP), Campinas, SP, Brazil
| | - Wagner José Fávaro
- School of Medical Science, Universidade Estadual de Campinas (UNICAMP), Campinas, SP, Brazil
| | - José Luiz da Costa
- Faculty of Pharmaceutical Science, Universidade Estadual de Campinas (UNICAMP), Campinas, SP, Brazil
| | - Carolina Dagli-Hernandez
- Faculty of Pharmaceutical Science, Universidade Estadual de Campinas (UNICAMP), Campinas, SP, Brazil
| | - Patricia Moriel
- Faculty of Pharmaceutical Science, Universidade Estadual de Campinas (UNICAMP), Campinas, SP, Brazil.
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Feng HP, Liu YC, Wang CL, Liao WC, Yu JS, Yu CJ. Acetylation regulates the nucleocytoplasmic distribution and oncogenic function of karyopherin alpha 2 in lung adenocarcinoma. Biochem Biophys Res Commun 2023; 659:96-104. [PMID: 37060831 DOI: 10.1016/j.bbrc.2023.04.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 04/03/2023] [Accepted: 04/07/2023] [Indexed: 04/17/2023]
Abstract
Karyopherin subunit alpha 2 (KPNA2, importin α1) is a nucleoplasmic protein responsible for the nuclear import of proteins with classical nuclear localization signals. Aberrant nuclear accumulation of KPNA2 has been observed in numerous cancer tissues. AMP-activated protein kinase (AMPK) is involved in the phosphorylation and acetylation of KPNA2 in enterocytes. However, the impact of these post-translational modifications on modulating the nucleocytoplasmic distribution of KPNA2 and its oncogenic role remain unclear. Unlike nuclear accumulation of wild-type KPNA2, which promoted lung cancer cell migration, KPNA2 Lys22 acetylation-mimicking mutations (K22Q and K22Q/S105A) prevented nuclear localization of KPNA2 and reduced the cell migration ability. Cytosolic KPNA2 K22Q interacted with and restricted the nuclear entry of E2F transcription factor 1 (E2F1), an oncogenic cargo protein of KPNA2, in lung cancer cells. Intriguingly, the AMPK activator EX229 promoted the nuclear export of KPNA2 S105A. However, the CBP/p300 inhibitor CCS-1477 abolished this phenomenon, suggesting that CBP/p300-mediated acetylation of KPNA2 promoted KPNA2 nuclear export in lung cancer cells. Collectively, our findings suggest that the CBP/p300 positively regulates KPNA2 acetylation, which enhances its cytosolic localization and suppresses its oncogenic activity in lung cancer.
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Affiliation(s)
- Hsiang-Pu Feng
- Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Yu-Chin Liu
- Department of Cell and Molecular Biology, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Chih-Liang Wang
- School of Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan; Department of Thoracic Medicine, Chang Gung Memorial Hospital, Linkou, Taoyuan, Taiwan
| | - Wei-Chao Liao
- Molecular Medicine Research Center, Chang Gung University, Taoyuan, Taiwan; Department of Nephrology, Chang Gung Memorial Hospital, Linkou, Taoyuan, Taiwan
| | - Jau-Song Yu
- Department of Cell and Molecular Biology, College of Medicine, Chang Gung University, Taoyuan, Taiwan; Molecular Medicine Research Center, Chang Gung University, Taoyuan, Taiwan; Liver Research Center, Chang Gung Memorial Hospital, Linkou, Taoyuan, Taiwan; Research Center for Food and Cosmetic Safety, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan, Taiwan
| | - Chia-Jung Yu
- Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan; Department of Cell and Molecular Biology, College of Medicine, Chang Gung University, Taoyuan, Taiwan; Department of Thoracic Medicine, Chang Gung Memorial Hospital, Linkou, Taoyuan, Taiwan; Molecular Medicine Research Center, Chang Gung University, Taoyuan, Taiwan.
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Integrated analysis and validation reveal ACAP1 as a novel prognostic biomarker associated with tumor immunity in lung adenocarcinoma. Comput Struct Biotechnol J 2022; 20:4390-4401. [PMID: 36051873 PMCID: PMC9403504 DOI: 10.1016/j.csbj.2022.08.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 08/10/2022] [Accepted: 08/10/2022] [Indexed: 11/23/2022] Open
Abstract
ADP-ribosylation factor (Arf)-GTPase-activating protein (GAP) with coiled-coil, ankyrin repeat and PH domains 1 (ACAP1) has been reported to serve as an adaptor for clathrin coat complex playing a role in endocytic recycling and cellular migration. The potential role of ACAP1 in lung adenocarcinoma (LUAD) has not been yet completely defined. We performed the comprehensive analyses, including gene expression, survival analysis, genetic alteration, function enrichment, and immune characteristics. ACAP1 was remarkably downregulated in tumor tissues, and linked with the clinicopathologic features in LUAD patients. Prognostic analysis demonstrated that low ACAP1 expression was correlated with unsatisfactory overall survival (OS) and disease specific survival (DSS) in LUAD patients. Moreover, ACAP1 could be determined as a prognostic biomarker according to Cox proportional hazard model and nomogram model. We also confirmed that ACAP1 was downregulated in two LUAD cell lines, comparing to normal lung cell. Overexpression of ACAP1 caused a profound attenuation in cell proliferation, migration, invasion, and promoted cell apoptosis. Additionally, functional enrichment analyses confirmed that ACAP1 was highly correlated with T cell activation and immune response. Then, we further conducted immune landscape analyses, including single cell RNA sequencing, immune cells infiltration, and immune checkpoints. ACAP1 expression was positively associated with the infiltrating level of immune cells in TME and the expression of immune checkpoint molecules. This study first comprehensively analyzed molecular expression, clinical implication, and immune landscape features of ACAP1 in LUAD, suggesting that ACAP1 was predictive of prognosis and could serve as a potential biomarker predicting immunotherapy response for LUAD patients.
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Luo C, Peng W, Kang J, Chen C, Peng J, Wang Y, Tang Q, Xie H, Li Y, Pan X. Glutamine Regulates Cell Growth and Casein Synthesis through the CYTHs/ARFGAP1-Arf1-mTORC1 Pathway in Bovine Mammary Epithelial Cells. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:6810-6819. [PMID: 34096300 DOI: 10.1021/acs.jafc.1c02223] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In the dairy industry, glutamine (Gln) is often used as a feed additive to increase milk yield and quality; however, the molecular regulation underneath needs further clarification. Here, with bovine mammary epithelial cells (BMECs), the effects and mechanisms of Gln on cell growth and casein synthesis were assessed. When Gln was added or depleted from BMECs, both cell growth and β-casein (CSN2) expression were increased or decreased, respectively. Overexpressing or inhibiting the mechanistic target of rapamycin (mTOR) revealed that Gln regulated cell growth and CSN2 synthesis through the mTORC1 pathway. A similar intervention of ADP-ribosylation factor 1 (Arf1) uncovered that Gln activated the mTORC1 pathway through Arf1. We next observed that both guanine nucleotide exchange factors, Cytohesin-1/2/3 (CYTH1/2/3, CYTHs) and ADP-ribosylation factor GTPase activating protein 1 (ARFGAP1), interacted with Arf1. Inhibiting CYTHs or ARFGAP1 showed that Gln supplement or depletion activated or inactivated Arf1 through CYTHs or ARFGAP1, respectively. Collectively, this study demonstrated that Gln positively regulated cell growth and casein synthesis in BMECs, which works through the CYTHs/ARFGAP1-Arf1-mTORC1 pathway. These results greatly enhanced current understanding regarding the regulation of the mTOR pathway and provided new insights for the processes of cell growth and casein synthesis by amino acids, particularly Gln.
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