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Yu X, Du J, Zhang W, Zhang X, Zhao H, Wen Q, Xu R. Screening of serum markers in patients with resistant hypertension. Heliyon 2024; 10:e36333. [PMID: 39286109 PMCID: PMC11403418 DOI: 10.1016/j.heliyon.2024.e36333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 08/11/2024] [Accepted: 08/13/2024] [Indexed: 09/19/2024] Open
Abstract
Background This study delves into the intricacies of resistant hypertension (RH), a prevalent yet enigmatic chronic cardiovascular ailment that is linked to a myriad of complications. Although its full pathogenesis is still shrouded in mystery, the field of proteomics offers a beacon of hope, with its potential to shed light on the proteins that orchestrate the tapestry of life. Harnessing the power of proteomics is essential for demystifying the pathogenesis of RH, enabling more precise diagnostics and treatments, and ultimately improving prognostic outcomes. Methods Our approach was to employ rigorous statistical analyses to home in on proteins with significant expression variances between our two cohorts. We complemented this with bioinformatics tools to unravel the intricate functions and pathways of these proteins. By synthesizing these insights with the clinical profiles of our patients, we were able to distill a set of definitive biomarkers with diagnostic potential. In our quest for clarity, we also embarked on a retrospective journey, amassing and scrutinizing clinical data from both RH and hypertension (HTN) patients. We crafted and rigorously assessed risk factor models to evaluate their diagnostic prowess. Results Our exploration spanned across 30 blood samples from RH patients and 20 from those grappling with HTN. Our inquiry yielded some compelling revelations: (1) RH patients showcased 29 unique proteins, in contrast to the 59 unique proteins found in HTN patients. A deeper dive into the proteomic data unveiled molecular functions predominantly tied to lipid metabolism, protein networking, and oxidative stress, with a spotlight on pathways such as cholesterol metabolism, coagulation, and the complement cascade. (2) By charting receiver operating characteristic curves and rigorously analyzing the proteomic data, we surfaced 11 proteins with notable diagnostic potential, tightly interwoven with clinical metrics. Conclusion Our research has pinpointed 11 proteins that stand as promising serum biomarkers, endowed with significant diagnostic value. This discovery marks a stride towards a more nuanced understanding and management of resistant hypertension.
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Affiliation(s)
- Xiaoqian Yu
- Department of Cardiology, Jinan Central Hospital, Shandong University, Jinan, 250013, China
| | - Jianmin Du
- Department of Clinical Research Central, Central Hospital Affiliated to Shandong First Medical University, Jinan, 250013, China
| | - Wenyu Zhang
- Department of Clinical Research Central, Central Hospital Affiliated to Shandong First Medical University, Jinan, 250013, China
| | - Xinghai Zhang
- Department of Clinical Research Central, Central Hospital Affiliated to Shandong First Medical University, Jinan, 250013, China
| | - Hengli Zhao
- Department of Clinical Research Central, Central Hospital Affiliated to Shandong First Medical University, Jinan, 250013, China
| | - Qing Wen
- Department of Clinical Research Central, Central Hospital Affiliated to Shandong First Medical University, Jinan, 250013, China
| | - Rui Xu
- Department of Cardiology, Central Hospital Affiliated to Shandong First Medical University, Jinan, 250013, China
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Ma Y, Yang W, Liang P, Feng R, Qiu T, Zhang J, Sun X, Li Q, Yang G, Yao X. The VDAC1 oligomerization regulated by ATP5B leads to the NLRP3 inflammasome activation in the liver cells under PFOS exposure. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 281:116647. [PMID: 38944014 DOI: 10.1016/j.ecoenv.2024.116647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 06/18/2024] [Accepted: 06/25/2024] [Indexed: 07/01/2024]
Abstract
As a persistent organic pollutant, perfluorooctane sulfonate (PFOS) has a serious detrimental impact on human health. It has been suggested that PFOS is associated with liver inflammation. However, the underlying mechanisms are still unclear. Here, PFOS was found to elevate the oligomerization tendency of voltage-dependent anion channel 1 (VDAC1) in the mice liver and human normal liver cells L-02. Inhibition of VDAC1 oligomerization alleviated PFOS-induced nucleotide-binding domain and leucine-rich repeat protein-3 (NLRP3) inflammasome activation. Cytoplasmic membrane VDAC1 translocated to mitochondria was also observed in response to PFOS. Therefore, the oligomerization of VDAC1 occurred mainly in the mitochondria. VDAC1 was found to interact with the ATP synthase beta subunit (ATP5B) under PFOS treatment. Knockdown of ATP5B or immobilization of ATP5B to the cytoplasmic membrane alleviated the increased VDAC1 oligomerization and NLRP3 inflammasome activation. Therefore, our results suggested that PFOS induced NLRP3 inflammasome activation through VDAC1 oligomerization, a process dependent on ATP5B to transfer VDAC1 from the plasma membrane to the mitochondria. The findings offer novel perspectives on the activation of the NLRP3 inflammasome, the regulatory mode on VDAC1 oligomerization, and the mechanism of PFOS toxicity.
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Affiliation(s)
- Yu Ma
- Occupation and Environment Health Department, Dalian Medical University, 9 Lushun-South Road, Dalian, China
| | - Wei Yang
- Occupation and Environment Health Department, Dalian Medical University, 9 Lushun-South Road, Dalian, China
| | - Peiyao Liang
- Occupation and Environment Health Department, Dalian Medical University, 9 Lushun-South Road, Dalian, China
| | - Ruzhen Feng
- Occupation and Environment Health Department, Dalian Medical University, 9 Lushun-South Road, Dalian, China
| | - Tianming Qiu
- Occupation and Environment Health Department, Dalian Medical University, 9 Lushun-South Road, Dalian, China
| | - Jingyuan Zhang
- Occupation and Environment Health Department, Dalian Medical University, 9 Lushun-South Road, Dalian, China
| | - Xiance Sun
- Occupation and Environment Health Department, Dalian Medical University, 9 Lushun-South Road, Dalian, China
| | - Qiujuan Li
- Nutrition Department, Dalian Medical University, 9 Lushun-South Road, Dalian, China
| | - Guang Yang
- Nutrition Department, Dalian Medical University, 9 Lushun-South Road, Dalian, China
| | - Xiaofeng Yao
- Occupation and Environment Health Department, Dalian Medical University, 9 Lushun-South Road, Dalian, China.
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Ahmed MZ, Alqahtani AS. Cell surface expression of Ribophorin I, an endoplasmic reticulum protein, over different cell types. Int J Biol Macromol 2024; 264:130278. [PMID: 38373565 DOI: 10.1016/j.ijbiomac.2024.130278] [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: 10/01/2023] [Revised: 02/15/2024] [Accepted: 02/16/2024] [Indexed: 02/21/2024]
Abstract
Ribophorin-1 serves as one of the subunits of the oligosaccharyltransferase (OST) complex located in the endoplasmic reticulum (ER). Until now, RPN-1 was considered an ER protein. However, our findings reveal that a minor fraction of RPN-1 escapes from the lumen of the ER and is ectopically expressed on the surface of different cell lines. The precise mechanism of protein translocation is unknown. The expression of RPN-1 was demonstrated through the isolation of membrane proteins using surface biotinylation and sucrose density gradient techniques. The confirmation of RPN-1 was obtained through surface staining using a specific antibody, revealing its expression on various cell lines. Additionally, we examined the expression of RPN-1 in different populations of PBMCs and observed a differential regulation of RPN-1 within PBMC subpopulations. Notably, there was a significant expression of RPN-1 on monocytes and B cells, but there was little to no population of T cells expressing RPN-1. We confirmed the expression of RPN-1 on THP-1, U937, and Jurkat cells. We also confirmed their surface expression through si-RNA knockdown. Our study shows RPN-1 expression on various cell surfaces, suggesting varied regulation among cell types. In the future, we may uncover its roles in immune function, signaling, and differentiation/proliferation.
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Affiliation(s)
- Mohammad Z Ahmed
- King Saud University College of Pharmacy, Department of Pharmacognosy, Riyadh 11451, Saudi Arabia.
| | - Ali S Alqahtani
- King Saud University College of Pharmacy, Department of Pharmacognosy, Riyadh 11451, Saudi Arabia
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Chang YW, Tony Yang T, Chen MC, Liaw YG, Yin CF, Lin-Yan XQ, Huang TY, Hou JT, Hung YH, Hsu CL, Huang HC, Juan HF. Spatial and temporal dynamics of ATP synthase from mitochondria toward the cell surface. Commun Biol 2023; 6:427. [PMID: 37072500 PMCID: PMC10113393 DOI: 10.1038/s42003-023-04785-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Accepted: 03/30/2023] [Indexed: 04/20/2023] Open
Abstract
Ectopic ATP synthase complex (eATP synthase), located on cancer cell surface, has been reported to possess catalytic activity that facilitates the generation of ATP in the extracellular environment to establish a suitable microenvironment and to be a potential target for cancer therapy. However, the mechanism of intracellular ATP synthase complex transport remains unclear. Using a combination of spatial proteomics, interaction proteomics, and transcriptomics analyses, we find ATP synthase complex is first assembled in the mitochondria and subsequently delivered to the cell surface along the microtubule via the interplay of dynamin-related protein 1 (DRP1) and kinesin family member 5B (KIF5B). We further demonstrate that the mitochondrial membrane fuses to the plasma membrane in turn to anchor ATP syntheses on the cell surface using super-resolution imaging and real-time fusion assay in live cells. Our results provide a blueprint of eATP synthase trafficking and contribute to the understanding of the dynamics of tumor progression.
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Grants
- 109-2221-E-010-012-MY3 Ministry of Science and Technology, Taiwan (Ministry of Science and Technology of Taiwan)
- MOST 109-2221-E-010-011-MY3 Ministry of Science and Technology, Taiwan (Ministry of Science and Technology of Taiwan)
- MOST 109-2327-B-006-004 Ministry of Science and Technology, Taiwan (Ministry of Science and Technology of Taiwan)
- MOST 109-2320-B-002-017-MY3 Ministry of Science and Technology, Taiwan (Ministry of Science and Technology of Taiwan)
- MOST 109-2221-E-002-161-MY3 Ministry of Science and Technology, Taiwan (Ministry of Science and Technology of Taiwan)
- NTU-110L8808 Ministry of Education (Ministry of Education, Republic of China (Taiwan))
- NTU-CC-109L104702-2 Ministry of Education (Ministry of Education, Republic of China (Taiwan))
- NTU-110L7103 Ministry of Education (Ministry of Education, Republic of China (Taiwan))
- NTU-111L7107 Ministry of Education (Ministry of Education, Republic of China (Taiwan))
- NTU-CC-112L892102 Ministry of Education (Ministry of Education, Republic of China (Taiwan))
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Affiliation(s)
- Yi-Wen Chang
- Department of Life Science, Institute of Molecular and Cellular Biology, National Taiwan University, Taipei, 106, Taiwan
| | - T Tony Yang
- Department of Electrical Engineering, National Taiwan University, Taipei, 106, Taiwan
- Graduate Institute of Biomedical Electronics and Bioinformatics, National Taiwan University, Taipei, 106, Taiwan
| | - Min-Chun Chen
- Department of Life Science, Institute of Molecular and Cellular Biology, National Taiwan University, Taipei, 106, Taiwan
| | - Y-Geh Liaw
- Department of Life Science, Institute of Molecular and Cellular Biology, National Taiwan University, Taipei, 106, Taiwan
| | - Chieh-Fan Yin
- Department of Life Science, Institute of Molecular and Cellular Biology, National Taiwan University, Taipei, 106, Taiwan
| | - Xiu-Qi Lin-Yan
- Department of Life Science, Institute of Molecular and Cellular Biology, National Taiwan University, Taipei, 106, Taiwan
| | - Ting-Yu Huang
- Department of Life Science, Institute of Molecular and Cellular Biology, National Taiwan University, Taipei, 106, Taiwan
| | - Jen-Tzu Hou
- Department of Life Science, Institute of Molecular and Cellular Biology, National Taiwan University, Taipei, 106, Taiwan
| | - Yi-Hsuan Hung
- Department of Life Science, Institute of Molecular and Cellular Biology, National Taiwan University, Taipei, 106, Taiwan
| | - Chia-Lang Hsu
- Department of Life Science, Institute of Molecular and Cellular Biology, National Taiwan University, Taipei, 106, Taiwan
- Department of Medical Research, National Taiwan University Hospital, Taipei, 100, Taiwan
| | - Hsuan-Cheng Huang
- Institute of Biomedical Informatics, National Yang Ming Chiao Tung University, Taipei, 112, Taiwan.
| | - Hsueh-Fen Juan
- Department of Life Science, Institute of Molecular and Cellular Biology, National Taiwan University, Taipei, 106, Taiwan.
- Graduate Institute of Biomedical Electronics and Bioinformatics, National Taiwan University, Taipei, 106, Taiwan.
- Center for Computational and Systems Biology, National Taiwan University, Taipei, 106, Taiwan.
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Wang J, Wang J, Qiu T, Wu J, Sun X, Jiang L, Liu X, Yang G, Cao J, Yao X. Mitochondrial iron overload mediated by cooperative transfer of plasma membrane ATP5B and TFR2 to mitochondria triggers hepatic insulin resistance under PFOS exposure. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 253:114662. [PMID: 36801541 DOI: 10.1016/j.ecoenv.2023.114662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 11/29/2022] [Accepted: 02/14/2023] [Indexed: 06/18/2023]
Abstract
In general populations, insulin resistance (IR) is related to perfluorooctane sulfonate (PFOS), a persistent organic pollutant. However, the underlying mechanism remains unclear. In this study, PFOS induced mitochondrial iron accumulation in the liver of mice and human hepatocytes L-O2. In the PFOS-treated L-O2 cells, mitochondrial iron overload preceded the occurrence of IR, and pharmacological inhibition of mitochondrial iron relieved PFOS-caused IR. Both transferrin receptor 2 (TFR2) and ATP synthase β subunit (ATP5B) were redistributed from the plasma membrane to mitochondria with PFOS treatment. Inhibiting the translocation of TFR2 to mitochondria reversed PFOS-induced mitochondrial iron overload and IR. In the PFOS-treated cells, ATP5B interacted with TFR2. Stabilizing ATP5B on the plasma membrane or knockdown of ATP5B disturbed the translocation of TFR2. PFOS inhibited the activity of plasma-membrane ATP synthase (ectopic ATP synthase, e-ATPS), and activating e-ATPS prevented the translocation of ATP5B and TFR2. Consistently, PFOS induced ATP5B/TFR2 interaction and redistribution of ATP5B and TFR2 to mitochondria in the liver of mice. Thus, our results indicated that mitochondrial iron overload induced by collaborative translocation of ATP5B and TFR2 was an up-stream and initiating event for PFOS-related hepatic IR, providing novel understandings of the biological function of e-ATPS, the regulatory mechanism for mitochondrial iron and the mechanism underlying PFOS toxicity.
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Affiliation(s)
- Jianyu Wang
- Occupational and Environmental Health Department, Dalian Medical University, 9 W Lvshun South Road, Dalian 116044, PR China
| | - Jinling Wang
- Occupational and Environmental Health Department, Dalian Medical University, 9 W Lvshun South Road, Dalian 116044, PR China
| | - Tianming Qiu
- Occupational and Environmental Health Department, Dalian Medical University, 9 W Lvshun South Road, Dalian 116044, PR China
| | - Jialu Wu
- Occupational and Environmental Health Department, Dalian Medical University, 9 W Lvshun South Road, Dalian 116044, PR China
| | - Xiance Sun
- Occupational and Environmental Health Department, Dalian Medical University, 9 W Lvshun South Road, Dalian 116044, PR China
| | - Liping Jiang
- Food Nutrition and Safety Department, Dalian Medical University, 9 W Lvshun South Road, Dalian 116044, PR China
| | - Xiaofang Liu
- Food Nutrition and Safety Department, Dalian Medical University, 9 W Lvshun South Road, Dalian 116044, PR China
| | - Guang Yang
- Food Nutrition and Safety Department, Dalian Medical University, 9 W Lvshun South Road, Dalian 116044, PR China
| | - Jun Cao
- Occupational and Environmental Health Department, Dalian Medical University, 9 W Lvshun South Road, Dalian 116044, PR China
| | - Xiaofeng Yao
- Occupational and Environmental Health Department, Dalian Medical University, 9 W Lvshun South Road, Dalian 116044, PR China.
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6
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Lee KH, Rim DE, Lee JH, Jeong SW. Role of ATP5G3 in sodium nitroprusside-induced cell death in cervical carcinoma cells. J Biochem Mol Toxicol 2023; 37:e23267. [PMID: 36524533 DOI: 10.1002/jbt.23267] [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: 10/22/2021] [Revised: 09/20/2022] [Accepted: 12/01/2022] [Indexed: 12/23/2022]
Abstract
We identified a gene, subunit C3 (ATP5G3) of mitochondrial ATP synthase, that displayed changes in gene expression under oxidative stress. We examined the role of ATP5G3 and its molecular mechanisms in sodium nitroprusside (SNP)-induced cell death using ATP5G3 small interfering RNA (siATP5G3)-transfected HeLa cells. A significant increase in cytotoxicity was observed in the transfected cells treated with SNP, which suggests a protective role of ATP5G3 in SNP-induced cytotoxicity in the cells. The transfected cells treated with photodegraded SNP showed equal cytotoxicity to SNP, and pretreatment with deferoxamine (DFO) completely inhibited this cytotoxicity. Further, cytotoxicity was significantly inhibited by pretreatment with a p38 inhibitor and was accentuated by the p38 activator in cells. Pretreatment with the Bcl-xL inhibitor also significantly accentuated cytotoxicity. The increase in p38 phosphorylation was significantly higher in siATP5G3-transfected cells treated with SNP in immunoblotting, which was inhibited by pretreatment with DFO. The increase in cytotoxicity with siATP5G3 transfection was completely blocked by cotransfection with sip38, and the blocking effect disappeared by cotransfection with additional siBcl-xL, which suggests that the protective role of ATP5G3 is mediated by Bcl-xL via the inhibition of p38 activity. Cytotoxicity was completely blocked by the cotransfection of siATP5G3 with siBax. No change in apoptotic parameters was observed during cytotoxicity. However, pretreatment with lysosomal inhibitors significantly inhibited cytotoxicity and increased p62 protein levels. These findings suggest that ATP5G3 plays a protective role in autophagic cell death/lysosome-associated cell death induced by SNP via the sequential signaling of ROS/p38/Bcl-xL/Bax in HeLa cells.
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Affiliation(s)
- Kyung Hye Lee
- Department of Biochemistry, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Do Eun Rim
- Department of Biochemistry, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Jeong-Hwa Lee
- Department of Biochemistry, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Seong-Whan Jeong
- Department of Biochemistry, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
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The Flavone Cirsiliol from Salvia x jamensis Binds the F 1 Moiety of ATP Synthase, Modulating Free Radical Production. Cells 2022; 11:cells11193169. [PMID: 36231131 PMCID: PMC9562182 DOI: 10.3390/cells11193169] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 08/25/2022] [Accepted: 10/04/2022] [Indexed: 11/16/2022] Open
Abstract
Several studies have shown that mammalian retinal rod outer segments (OS) are peculiar structures devoid of mitochondria, characterized by ectopic expression of the molecular machinery for oxidative phosphorylation. Such ectopic aerobic metabolism would provide the chemical energy for the phototransduction taking place in the OS. Natural polyphenols include a large variety of molecules having pleiotropic effects, ranging from anti-inflammatory to antioxidant and others. Our goal in the present study was to investigate the potential of the flavonoid cirsiliol, a trihydroxy-6,7-dimethoxyflavone extracted from Salvia x jamensis, in modulating reactive oxygen species production by the ectopic oxidative phosphorylation taking place in the OS. Our molecular docking analysis identified cirsiliol binding sites inside the F1 moiety of the nanomotor F1Fo-ATP synthase. The experimental approach was based on luminometry, spectrophotometry and cytofluorimetry to evaluate ATP synthesis, respiratory chain complex activity and H2O2 production, respectively. The results showed significant dose-dependent inhibition of ATP production by cirsiliol. Moreover, cirsiliol was effective in reducing the free radical production by the OS exposed to ambient light. We report a considerable protective effect of cirsiliol on the structural stability of rod OS, suggesting it may be considered a promising compound against oxidative stress.
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Leite AC, Martins TS, Campos A, Costa V, Pereira C. Phosphoregulation of the ATP synthase beta subunit stimulates mitochondrial activity for G2/M progression. Adv Biol Regul 2022; 85:100905. [PMID: 36030696 DOI: 10.1016/j.jbior.2022.100905] [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: 07/03/2022] [Revised: 08/04/2022] [Accepted: 08/09/2022] [Indexed: 10/15/2022]
Abstract
Mitochondrial ATP synthase is a multifunctional enzyme complex involved in ATP production. We previously reported that the ATP synthase catalytic beta subunit (Atp2p in yeast) is regulated by the 2A-like protein phosphatase Sit4p, which targets Atp2p at T124/T317 impacting on ATP synthase levels and mitochondrial respiration. Here we report that Atp2-T124/T317 is also potentially regulated by Cdc5p, a polo-like mitotic kinase. Since both Cdc5p and Sit4p have established roles in cell cycle regulation, we investigated whether Atp2-T124/T317 phosphorylation was cell cycle-related. We present evidence that Atp2p levels and phosphorylation vary during cell cycle progression, with an increase at G2/M phase. Atp2-T124/T317 phosphorylation stimulates mitochondrial membrane potential, respiration and ATP levels at G2/M phase, indicating that dynamic Atp2p phosphorylation contributes to mitochondrial activity at this specific cell cycle phase. Preventing Atp2p phosphorylation delays G2/M to G1 transition, suggesting that enhanced bioenergetics at G2/M may help meet the energetic demands of cell cycle progression. However, mimicking constitutive T124/T317 phosphorylation or overexpressing Atp2p leads to mitochondrial DNA instability, indicating that reversible Atp2p phosphorylation is critical for homeostasis. These results indicate that transient phosphorylation of Atp2p, a protein at the core of the ATP production machinery, impacts on mitochondrial bioenergetics and supports cell cycle progression at G2/M.
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Affiliation(s)
- Ana Cláudia Leite
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Portugal; IBMC - Instituto de Biologia Celular e Molecular, Universidade do Porto, Portugal; ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Portugal
| | - Telma Silva Martins
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Portugal; IBMC - Instituto de Biologia Celular e Molecular, Universidade do Porto, Portugal; ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Portugal
| | - Ana Campos
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Portugal; IBMC - Instituto de Biologia Celular e Molecular, Universidade do Porto, Portugal
| | - Vítor Costa
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Portugal; IBMC - Instituto de Biologia Celular e Molecular, Universidade do Porto, Portugal; ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Portugal
| | - Clara Pereira
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Portugal; IBMC - Instituto de Biologia Celular e Molecular, Universidade do Porto, Portugal.
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Quantitative phosphoproteomics reveals ectopic ATP synthase on mesenchymal stem cells to promote tumor progression via ERK/c-Fos pathway activation. Mol Cell Proteomics 2022; 21:100237. [PMID: 35439648 PMCID: PMC9117939 DOI: 10.1016/j.mcpro.2022.100237] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 04/01/2022] [Accepted: 04/13/2022] [Indexed: 11/22/2022] Open
Abstract
The tumor microenvironment (TME), which comprises cellular and noncellular components, is involved in the complex process of cancer development. Emerging evidence suggests that mesenchymal stem cells (MSCs), one of the vital regulators of the TME, foster tumor progression through paracrine secretion. However, the comprehensive phosphosignaling pathways that are mediated by MSC-secreting factors have not yet been fully established. In this study, we attempt to dissect the MSC-triggered mechanism in lung cancer using quantitative phosphoproteomics. A total of 1958 phosphorylation sites are identified in lung cancer cells stimulated with MSC-conditioned medium. Integrative analysis of the identified phosphoproteins and predicted kinases demonstrates that MSC-conditioned medium functionally promotes the proliferation and migration of lung cancer via the ERK/phospho-c-Fos-S374 pathway. Recent studies have reported that extracellular ATP accumulates in the TME and stimulates the P2X7R on the cancer cell membrane via purinergic signaling. We observe that ectopic ATP synthase is located on the surface of MSCs and excreted extracellular ATP into the lung cancer microenvironment to trigger the ERK/phospho-c-Fos-S374 pathway, which is consistent with these previous findings. Our results suggest that ectopic ATP synthase on the surface of MSCs releases extracellular ATP into the TME, which promotes cancer progression via activation of the ERK/phospho-c-Fos-S374 pathway. Mesenchymal stem cells (MSCs) enhance lung cancer development through extracellular factor secretion. Phosphoproteomics discover MSCs-regulated phosphosignaling in the lung cancer. Ectopic ATP synthase on MSCs surface produces ATP into the tumor microenvironment. MSC-secreted extracellular ATP mediates the phosphorylation of the ERK/c-Fos axis.
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Wang Z, Sun A, Yan A, Yao J, Huang H, Gao Z, Han T, Gu J, Li N, Wu H, Li K. Circular RNA MTCL1 promotes advanced laryngeal squamous cell carcinoma progression by inhibiting C1QBP ubiquitin degradation and mediating beta-catenin activation. Mol Cancer 2022; 21:92. [PMID: 35366893 PMCID: PMC8976408 DOI: 10.1186/s12943-022-01570-4] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 03/25/2022] [Indexed: 11/13/2022] Open
Abstract
Background Circular RNAs (circRNAs) are involved in regulatory processes of ubiquitination and deubiquitination in various tumors at post-transcriptional epigenetic modification level. However, the underlying mechanism and its biological functions of circRNAs in the advanced laryngeal squamous cell carcinoma (LSCC) remain obscure. Methods RNA sequencing and quantitative real-time PCR (qRT-PCR) assays were applied to screen for circRNAs differentially expressed in LSCC tissues and cell lines. The candidate RNA-binding proteins and target signalling pathway were detected by RNA pull-down and mass spectrometry, in situ hybridization (ISH), immunohistochemistry (IHC), qRT-PCR assays, and bioinformatics analysis. The functional roles of these molecules were investigated using in vitro and in vivo experiments including EdU, transwell, wound healing, western blot assays, and the xenograft mice models. The molecular mechanisms were identified using RNA pull-down assays, RNA immunoprecipitation (RIP), Co-IP, ISH, Ubiquitination assay, bioinformatics analysis, and the rescue experiments. Results Here, we unveil that microtubule cross-linking factor 1 circRNA (circMTCL1, circ0000825) exerts its critical oncogenic functions by promoting complement C1q-binding protein (C1QBP)-dependent ubiquitin degradation and subsequently activating Wnt/β-catenin signalling in laryngeal carcinoma initiation and development. Specifically, circMTCL1 was remarkably up-regulated in the paired tissues of patients with LSCC (n = 67), which predicted a worse clinical outcome. Functionally, circMTCL1 exerted oncogenic biological charactersistics by promoting cell proliferative capability and invasive and migrative abilities. Ectopic circMTCL1 augumented cell proliferation, migration, and invasion of LSCC cells, and this effect could be reversed by C1QBP knocking down in vitro and in vivo. Mechanistically, circMTCL1 directly recruited C1QBP protein by harboring the specific recognized sequence (+ 159 − + 210), thereby accelerating the translation of C1QBP expression by inhibiting its ubiquitin–proteasome-mediated degradation. Importantly, the direct interaction of C1QBP with β-catenin protein was enhanced via suppressing the β-catenin phosphorylation and accelerating its accumulation in cytoplasm and nucleus. Conclusion Our findings manifested a novel circMTCL1-C1QBP-β-catenin signaling axis involving in LSCC tumorigenesis and progression, which shed new light on circRNAs-ubiquitous acidic glycoprotein mediated ubiquitin degradation and provided strategies and targets in the therapeutic intervention of LSCC. Supplementary Information The online version contains supplementary material available at 10.1186/s12943-022-01570-4.
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11
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Wang X, Chang X, He C, Fan Z, Yu Z, Yu B, Wu X, Hou J, Li J, Su L, Liu B, Zhu Z. ATP5B promotes the metastasis and growth of gastric cancer by activating the FAK/AKT/MMP2 pathway. FASEB J 2021; 35:e20649. [PMID: 33715234 DOI: 10.1096/fj.202000608r] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 04/27/2020] [Accepted: 05/07/2020] [Indexed: 11/11/2022]
Abstract
Adenosine triphosphate (ATP) in the tumor microenvironment serves a vital role during tumor progression. ATP synthase F1 β subunit (ATP5B) is one of the most important subunits of ATP synthase and increases cellular ATP levels. ATP5B reportedly participates in carcinogenesis in several tumors. However, the regulatory mechanisms of ATP5B remain poorly understood in gastric cancer (GC). Here, we determined that high ATP5B expression in tumor tissues of GC is positively correlated with age, the tumor size, the TNM stage, lymph node metastasis, and patients' poor prognosis. The overexpression of ATP5B in GC cells elevated the cellular ATP content and promoted migration, invasion and proliferation. The levels of MMP2 expression, phosphorylated FAK, and phosphorylated AKT were increased after ATP5B overexpression in GC cells. Additionally, ATP5B overexpression increased the extracellular ATP level through the secretion of intracellular ATP and activated the FAK/AKT/MMP2 signaling pathway. ATP5B-induced downstream pathway activation was induced through the plasma membrane P2X7 receptor. Inhibitors of P2X7, FAK, AKT, and MMP2 suppressed the proliferative, migratory, and invasive capabilities of GC cells. In conclusion, our experiments indicate that ATP5B contributes to tumor progression of GC via FAK/AKT/MMP2 pathway. ATP5B, therefore, may be a biomarker of poor prognosis and a potential therapeutic target for GC.
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Affiliation(s)
- Xufeng Wang
- Department of Surgery, Shanghai Key Laboratory of Gastric Neoplasms, Shanghai Institute of Digestive Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Xinyu Chang
- Department of Surgery, Shanghai Key Laboratory of Gastric Neoplasms, Shanghai Institute of Digestive Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Changyu He
- Department of Surgery, Shanghai Key Laboratory of Gastric Neoplasms, Shanghai Institute of Digestive Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Zhiyuan Fan
- Department of Surgery, Shanghai Key Laboratory of Gastric Neoplasms, Shanghai Institute of Digestive Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Zhenjia Yu
- Department of Surgery, Shanghai Key Laboratory of Gastric Neoplasms, Shanghai Institute of Digestive Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Beiqin Yu
- Department of Surgery, Shanghai Key Laboratory of Gastric Neoplasms, Shanghai Institute of Digestive Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Xiongyan Wu
- Department of Surgery, Shanghai Key Laboratory of Gastric Neoplasms, Shanghai Institute of Digestive Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Junyi Hou
- Department of Surgery, Shanghai Key Laboratory of Gastric Neoplasms, Shanghai Institute of Digestive Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Jianfang Li
- Department of Surgery, Shanghai Key Laboratory of Gastric Neoplasms, Shanghai Institute of Digestive Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Liping Su
- Department of Surgery, Shanghai Key Laboratory of Gastric Neoplasms, Shanghai Institute of Digestive Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Bingya Liu
- Department of Surgery, Shanghai Key Laboratory of Gastric Neoplasms, Shanghai Institute of Digestive Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Zhenggang Zhu
- Department of Surgery, Shanghai Key Laboratory of Gastric Neoplasms, Shanghai Institute of Digestive Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
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12
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Liu M, Xu Y, Zhou Y, Lang R, Shi Z, Zhao J, Meng Y, Bao L. Integrated Analyses Reveal the Multi-Omics and Prognostic Characteristics of ATP5B in Breast Cancer. Front Genet 2021; 12:652474. [PMID: 34122507 PMCID: PMC8194306 DOI: 10.3389/fgene.2021.652474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 04/19/2021] [Indexed: 11/13/2022] Open
Abstract
The beta subunit of F1Fo-ATP synthase (ATP5B) has been demonstrated to play an essential role in tumor progression and metastasis. However, there has been no comprehensive pan-cancer multi-omics analysis of ATP5B, while the clinical relevance of ATP5B and its potential mechanism in regulating breast cancer are still poorly understood. In this study, we demonstrated that ATP5B has a higher frequency of amplification than deletion in most cancer types, and the copy number variation (CNV) of ATP5B was significantly positively correlated with its mRNA expression level. DNA methylation analysis across pan-cancer also revealed a strong correlation between ATP5B expression and epigenetic changes. We identified 6 significant methylation sites involved in the regulation of ATP5B expression. Tissue microarrays (TMA) from 129 breast cancer samples, integrated with multiple additional breast cancer dataset, were used to evaluate the ATP5B expression and its correlation with prognosis. Higher levels of ATP5B expression were consistently associated with a worse OS in all datasets, and Cox regression analysis suggested that ATP5B expression was an independent prognostic factor. Gene enrichment analysis indicated that the gene signatures of DNA damage recognition, the E-cadherin nascent pathway and the PLK1 pathway were enriched in ATP5B-high patients. Moreover, somatic mutation analysis showed that a significant different mutation frequency of CDH1 and ADAMTSL3 could be observed between the ATP5B-high and ATP5B-low groups. In conclusion, this study reveals novel significance regarding the genetic characteristics and clinical value of ATP5B highlighted in predicting the outcome of breast cancer patients.
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Affiliation(s)
- Min Liu
- Key Laboratory of Cancer Prevention and Therapy, Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Tianjin, China.,The Graduate School, Tianjin Medical University, Tianjin, China
| | - Yuxuan Xu
- Key Laboratory of Cancer Prevention and Therapy, Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Tianjin, China.,The Graduate School, Tianjin Medical University, Tianjin, China
| | - Yaoyao Zhou
- Key Laboratory of Cancer Prevention and Therapy, Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Tianjin, China.,The Graduate School, Tianjin Medical University, Tianjin, China
| | - Ronggang Lang
- Department of Breast Cancer Pathology and Research Laboratory, Key Laboratory of Cancer Prevention and Therapy, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Tianjin, China
| | - Zhenyu Shi
- Key Laboratory of Cancer Prevention and Therapy, Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Tianjin, China
| | - Jing Zhao
- Key Laboratory of Cancer Prevention and Therapy, Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Tianjin, China
| | - Yuanyuan Meng
- Key Laboratory of Cancer Prevention and Therapy, Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Tianjin, China.,The Graduate School, Tianjin Medical University, Tianjin, China
| | - Li Bao
- Key Laboratory of Cancer Prevention and Therapy, Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Tianjin, China
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13
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Dong X, Li Y, Li W, Kang W, Tang R, Wu W, Xing Z, Zhou L. The function of Cav-1 in MDA-MB-231 breast cancer cell migration and invasion induced by ectopic ATP5B. Med Oncol 2021; 38:73. [PMID: 34009483 PMCID: PMC8134283 DOI: 10.1007/s12032-021-01519-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Accepted: 05/04/2021] [Indexed: 12/03/2022]
Abstract
Ectopic ATP5B, which is located in a unique type of lipid raft caveolar structure, can be upregulated by cholesterol loading. As the structural component of caveolae, Cav-1 is a molecular hub that is involved in transmembrane signaling. In a previous study, the ATP5B-specific binding peptide B04 was shown to inhibit the migration and invasion of prostate cancer cells, and the expression of ATP5B on the plasma membrane of MDA-MB-231 cells was confirmed. The present study investigated the effect of ectopic ATP5B on the migration and invasion of MDA-MB-231 cells and examined the involvement of Cav-1. Cholesterol loading increased the level of ectopic ATP5B and promoted cell migration and invasion. These effects were blocked by B04. Ectopic ATP5B was physically colocalized with Cav-1, as demonstrated by double immunofluorescence staining and coimmunoprecipitation. After Cav-1 knockdown, the migration and invasion abilities of MDA-MB-231 cells were significantly decreased, suggesting that Cav-1 influences the function of ectopic ATP5B. Furthermore, these effects were not reversed after treatment with cholesterol. We concluded that Cav-1 may participate in MDA-MB-231 cell migration and invasion induced by binding to ectopic ATP5B.
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Affiliation(s)
- Xinjie Dong
- Department of Pathology, The First Hospital of Jilin University, Changchun, Jilin, 130021, China
| | - Yilei Li
- The Key Laboratory of Pathobiology, Ministry of Education, The College of Basic Medical Sciences, Jilin University, Changchun, Jilin, 130021, China
| | - Wei Li
- The Key Laboratory of Pathobiology, Ministry of Education, The College of Basic Medical Sciences, Jilin University, Changchun, Jilin, 130021, China
| | - Wenzhe Kang
- The Key Laboratory of Pathobiology, Ministry of Education, The College of Basic Medical Sciences, Jilin University, Changchun, Jilin, 130021, China
| | - Rong Tang
- The Key Laboratory of Pathobiology, Ministry of Education, The College of Basic Medical Sciences, Jilin University, Changchun, Jilin, 130021, China
| | - Wenyi Wu
- The Key Laboratory of Pathobiology, Ministry of Education, The College of Basic Medical Sciences, Jilin University, Changchun, Jilin, 130021, China
| | - Ziyi Xing
- The Key Laboratory of Pathobiology, Ministry of Education, The College of Basic Medical Sciences, Jilin University, Changchun, Jilin, 130021, China.
| | - Lijuan Zhou
- The Key Laboratory of Pathobiology, Ministry of Education, The College of Basic Medical Sciences, Jilin University, Changchun, Jilin, 130021, China.
- Electron Microscopy Laboratory of Renal Pathology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China.
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14
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Miao L, Zhuo Z, Tang J, Huang X, Liu J, Wang H, Xia H, He J. FABP4 deactivates NF-κB-IL1α pathway by ubiquitinating ATPB in tumor-associated macrophages and promotes neuroblastoma progression. Clin Transl Med 2021; 11:e395. [PMID: 33931964 PMCID: PMC8087928 DOI: 10.1002/ctm2.395] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Revised: 03/16/2021] [Accepted: 04/07/2021] [Indexed: 02/05/2023] Open
Abstract
Neuroblastoma (NB) is the most common and deadliest pediatric solid tumor. Targeting and reactivating tumor-associated macrophages (TAMs) is necessary for reversing immune suppressive state and stimulating immune defense to exert tumoricidal function. However, studies on the function and regulation of TAMs in NB progression are still limited. Fatty acid binding protein 4 (FABP4) in TAMs was correlated with advanced clinical stages and unfavorable histology of NB. FABP4-mediated macrophages increased migration, invasion, and tumor growth of NB cells. Mechanically, FABP4 could directly bind to ATPB to accelerate ATPB ubiquitination in macrophages. The consequently decreased ATP levels could deactivate NF-κB/RelA-IL1α pathway, which subsequently results in macrophages reprogrammed to an anti-inflammatory phenotype. We also demonstrated that FABP4-enhanced migration and invasion were significantly suppressed by IL1α blocking antibody. Furthermore, circulating FABP4 was also associated with the clinical stages of NB. Our findings suggest that FABP4-mediated macrophages may promote proliferation and migration phenotypes in NB cells through deactivating NF-κB-IL1α pathway by ubiquitinating ATPB. This study reveals the pathologic and biologic role of FABP4-mediated macrophages in NB development and exhibits a novel application of targeting FABP4 in macrophages for NB treatment.
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Affiliation(s)
- Lei Miao
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical CenterGuangzhou Medical UniversityGuangzhouChina
| | - Zhenjian Zhuo
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical CenterGuangzhou Medical UniversityGuangzhouChina
| | - Jue Tang
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical CenterGuangzhou Medical UniversityGuangzhouChina
| | - Xiaomei Huang
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical CenterGuangzhou Medical UniversityGuangzhouChina
| | - Jiabin Liu
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical CenterGuangzhou Medical UniversityGuangzhouChina
| | - Hai‐Yun Wang
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical CenterGuangzhou Medical UniversityGuangzhouChina
- Department of Pathology, Guangzhou Women and Children's Medical CenterGuangzhou Medical UniversityGuangzhouChina
| | - Huimin Xia
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical CenterGuangzhou Medical UniversityGuangzhouChina
| | - Jing He
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical CenterGuangzhou Medical UniversityGuangzhouChina
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15
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Lin W, Qiao C, Hu J, Wei Q, Xu T. Conserved role of ATP synthase in mammalian cilia. Exp Cell Res 2021; 401:112520. [PMID: 33639177 DOI: 10.1016/j.yexcr.2021.112520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 02/09/2021] [Accepted: 02/11/2021] [Indexed: 10/22/2022]
Abstract
We previously found that ATP synthases localize to male-specific sensory cilia and control the ciliary response by regulating polycystin signalling in Caenorhabditis elegans. Herein, we discovered that the ciliary localization of ATP synthase is evolutionarily conserved in mammals. We showed that the ATP synthase subunit F1β is colocalized with the cilia marker acetylated α-tubulin in both mammalian renal epithelial cells (MDCK) and normal mouse cholangiocytes (NMCs). Treatment with ATP synthase inhibitor oligomycin impaired ciliogenesis in MDCK cells, and F1β was co-immunoprecipitated with PKD2 in mammalian cells. Our study provides evidence for the evolutionarily conserved localization of ATP synthase in cilia from worm to mammals. Defects in ATP synthase can lead to ciliary dysfunction, which may be a potential mechanism of polycystic kidney disease.
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Affiliation(s)
- Wenjun Lin
- Department of Nephrology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
| | - Cheng Qiao
- Department of Nephrology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
| | - Jinghua Hu
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN, USA
| | - Qing Wei
- Center for Energy Metabolism and Reproduction, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences (CAS), Shenzhen, 518055, China
| | - Tao Xu
- Department of Nephrology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China.
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16
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Di Giuseppe F, Carluccio M, Zuccarini M, Giuliani P, Ricci-Vitiani L, Pallini R, De Sanctis P, Di Pietro R, Ciccarelli R, Angelucci S. Proteomic Characterization of Two Extracellular Vesicle Subtypes Isolated from Human Glioblastoma Stem Cell Secretome by Sequential Centrifugal Ultrafiltration. Biomedicines 2021; 9:biomedicines9020146. [PMID: 33546239 PMCID: PMC7913340 DOI: 10.3390/biomedicines9020146] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 01/25/2021] [Accepted: 01/29/2021] [Indexed: 02/05/2023] Open
Abstract
Extracellular vesicles (EVs) released from tumor cells are actively investigated, since molecules therein contained and likely transferred to neighboring cells, supplying them with oncogenic information/functions, may represent cancer biomarkers and/or druggable targets. Here, we characterized by a proteomic point of view two EV subtypes isolated by sequential centrifugal ultrafiltration technique from culture medium of glioblastoma (GBM)-derived stem-like cells (GSCs) obtained from surgical specimens of human GBM, the most aggressive and lethal primary brain tumor. Electron microscopy and western blot analysis distinguished them into microvesicles (MVs) and exosomes (Exos). Two-dimensional electrophoresis followed by MALDI TOF analysis allowed us to identify, besides a common pool, sets of proteins specific for each EV subtypes with peculiar differences in their molecular/biological functions. Such a diversity was confirmed by identification of some top proteins selected in MVs and Exos. They were mainly chaperone or metabolic enzymes in MVs, whereas, in Exos, molecules are involved in cell-matrix adhesion, cell migration/aggressiveness, and chemotherapy resistance. These proteins, identified by EVs from primary GSCs and not GBM cell lines, could be regarded as new possible prognostic markers/druggable targets of the human tumor, although data need to be confirmed in EVs isolated from a greater GSC number.
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Affiliation(s)
- Fabrizio Di Giuseppe
- Department of Innovative Technologies in Medicine and Dentistry, ‘G. d’Annunzio’ University of Chieti-Pescara, Via Vestini 31, 66100 Chieti, Italy;
- Center for Advanced Studies and Technology (CAST), ‘G. d’Annunzio’ University of Chieti-Pescara, Via L Polacchi 13, 66100 Chieti, Italy; (M.C.); (M.Z.); (P.G.); (P.D.S.); (R.D.P.); (R.C.)
- Stem TeCh Group, Via L Polacchi 13, 66100 Chieti, Italy
| | - Marzia Carluccio
- Center for Advanced Studies and Technology (CAST), ‘G. d’Annunzio’ University of Chieti-Pescara, Via L Polacchi 13, 66100 Chieti, Italy; (M.C.); (M.Z.); (P.G.); (P.D.S.); (R.D.P.); (R.C.)
- Stem TeCh Group, Via L Polacchi 13, 66100 Chieti, Italy
- Department of Medical, Oral and Biotechnological Sciences, ‘G. d’Annunzio’ University of Chieti-Pescara, Via Vestini 31, 66100 Chieti, Italy
| | - Mariachiara Zuccarini
- Center for Advanced Studies and Technology (CAST), ‘G. d’Annunzio’ University of Chieti-Pescara, Via L Polacchi 13, 66100 Chieti, Italy; (M.C.); (M.Z.); (P.G.); (P.D.S.); (R.D.P.); (R.C.)
- Department of Medical, Oral and Biotechnological Sciences, ‘G. d’Annunzio’ University of Chieti-Pescara, Via Vestini 31, 66100 Chieti, Italy
| | - Patricia Giuliani
- Center for Advanced Studies and Technology (CAST), ‘G. d’Annunzio’ University of Chieti-Pescara, Via L Polacchi 13, 66100 Chieti, Italy; (M.C.); (M.Z.); (P.G.); (P.D.S.); (R.D.P.); (R.C.)
- Department of Medical, Oral and Biotechnological Sciences, ‘G. d’Annunzio’ University of Chieti-Pescara, Via Vestini 31, 66100 Chieti, Italy
| | - Lucia Ricci-Vitiani
- Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, Via Regina Elena 299, 00161 Rome, Italy;
| | - Roberto Pallini
- Institute of Neurosurgery, Università Cattolica del Sacro Cuore, Largo Agostino Gemelli 8, 00168 Rome, Italy;
| | - Paolo De Sanctis
- Center for Advanced Studies and Technology (CAST), ‘G. d’Annunzio’ University of Chieti-Pescara, Via L Polacchi 13, 66100 Chieti, Italy; (M.C.); (M.Z.); (P.G.); (P.D.S.); (R.D.P.); (R.C.)
- Department of Medicine and Ageing Sciences, ‘G. d’Annunzio’ University of Chieti-Pescara, Via Vestini 31, 66100 Chieti, Italy
| | - Roberta Di Pietro
- Center for Advanced Studies and Technology (CAST), ‘G. d’Annunzio’ University of Chieti-Pescara, Via L Polacchi 13, 66100 Chieti, Italy; (M.C.); (M.Z.); (P.G.); (P.D.S.); (R.D.P.); (R.C.)
- Stem TeCh Group, Via L Polacchi 13, 66100 Chieti, Italy
- Department of Medicine and Ageing Sciences, ‘G. d’Annunzio’ University of Chieti-Pescara, Via Vestini 31, 66100 Chieti, Italy
| | - Renata Ciccarelli
- Center for Advanced Studies and Technology (CAST), ‘G. d’Annunzio’ University of Chieti-Pescara, Via L Polacchi 13, 66100 Chieti, Italy; (M.C.); (M.Z.); (P.G.); (P.D.S.); (R.D.P.); (R.C.)
- Stem TeCh Group, Via L Polacchi 13, 66100 Chieti, Italy
- Department of Medical, Oral and Biotechnological Sciences, ‘G. d’Annunzio’ University of Chieti-Pescara, Via Vestini 31, 66100 Chieti, Italy
| | - Stefania Angelucci
- Department of Innovative Technologies in Medicine and Dentistry, ‘G. d’Annunzio’ University of Chieti-Pescara, Via Vestini 31, 66100 Chieti, Italy;
- Center for Advanced Studies and Technology (CAST), ‘G. d’Annunzio’ University of Chieti-Pescara, Via L Polacchi 13, 66100 Chieti, Italy; (M.C.); (M.Z.); (P.G.); (P.D.S.); (R.D.P.); (R.C.)
- Stem TeCh Group, Via L Polacchi 13, 66100 Chieti, Italy
- Correspondence: ; Tel.: +39-0871541482
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17
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Natural products and other inhibitors of F 1F O ATP synthase. Eur J Med Chem 2020; 207:112779. [PMID: 32942072 DOI: 10.1016/j.ejmech.2020.112779] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 08/20/2020] [Accepted: 08/21/2020] [Indexed: 12/19/2022]
Abstract
F1FO ATP synthase is responsible for the production of >95% of all ATP synthesis within the cell. Dysregulation of its expression, activity or localization is linked to various human diseases including cancer, diabetes, and Alzheimer's and Parkinson's disease. In addition, ATP synthase is a novel and viable drug target for the development of antimicrobials as evidenced by bedaquiline, which was approved in 2012 for the treatment of tuberculosis. Historically, natural products have been a rich source of ATP synthase inhibitors that help unravel the role of F1FO ATP synthase in cellular bioenergetics. During the last decade, new modulators of ATP synthase have been discovered through the isolation of novel natural products as well as through a ligand-based drug design process. In addition, new data has been obtained with regards to the structure and function of ATP synthase under physiological and pathological conditions. Crystal structure studies have provided a significant insight into the rotary function of the enzyme and may provide additional opportunities to design a new generation of inhibitors. This review provides an update on recently discovered ATP synthase modulators as well as an update on existing scaffolds.
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18
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Speransky S, Serafini P, Caroli J, Bicciato S, Lippman ME, Bishopric NH. A novel RNA aptamer identifies plasma membrane ATP synthase beta subunit as an early marker and therapeutic target in aggressive cancer. Breast Cancer Res Treat 2019; 176:271-289. [PMID: 31006104 PMCID: PMC6555781 DOI: 10.1007/s10549-019-05174-3] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Accepted: 02/18/2019] [Indexed: 12/22/2022]
Abstract
PURPOSE Primary breast and prostate cancers can be cured, but metastatic disease cannot. Identifying cell factors that predict metastatic potential could guide both prognosis and treatment. METHODS We used Cell-SELEX to screen an RNA aptamer library for differential binding to prostate cancer cell lines with high vs. low metastatic potential. Mass spectroscopy, immunoblot, and immunohistochemistry were used to identify and validate aptamer targets. Aptamer properties were tested in vitro, in xenograft models, and in clinical biopsies. Gene expression datasets were queried for target associations in cancer. RESULTS We identified a novel aptamer (Apt63) that binds to the beta subunit of F1Fo ATP synthase (ATP5B), present on the plasma membrane of certain normal and cancer cells. Apt63 bound to plasma membranes of multiple aggressive breast and prostate cell lines, but not to normal breast and prostate epithelial cells, and weakly or not at all to non-metastasizing cancer cells; binding led to rapid cell death. A single intravenous injection of Apt63 induced rapid, tumor cell-selective binding and cytotoxicity in MDA-MB-231 xenograft tumors, associated with endonuclease G nuclear translocation and DNA fragmentation. Apt63 was not toxic to non-transformed epithelial cells in vitro or adjacent normal tissue in vivo. In breast cancer tissue arrays, plasma membrane staining with Apt63 correlated with tumor stage (p < 0.0001, n = 416) and was independent of other cancer markers. Across multiple datasets, ATP5B expression was significantly increased relative to normal tissue, and negatively correlated with metastasis-free (p = 0.0063, 0.00039, respectively) and overall (p = 0.050, 0.0198) survival. CONCLUSION Ecto-ATP5B binding by Apt63 may disrupt an essential survival mechanism in a subset of tumors with high metastatic potential, and defines a novel category of cancers with potential vulnerability to ATP5B-targeted therapy. Apt63 is a unique tool for elucidating the function of surface ATP synthase, and potentially for predicting and treating metastatic breast and prostate cancer.
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Affiliation(s)
- S Speransky
- Department of Medicine, Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, USA
| | - P Serafini
- Department of Microbiology & Immunology, Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, USA
| | - J Caroli
- Center for Genome Research, Department of Life Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - S Bicciato
- Center for Genome Research, Department of Life Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - M E Lippman
- Department of Medicine, Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, USA
- Department of Oncology, Georgetown Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC, USA
| | - N H Bishopric
- Department of Medicine, Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, USA.
- Department of Oncology, Georgetown Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC, USA.
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19
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Muys BR, Sousa JF, Plaça JR, de Araújo LF, Sarshad AA, Anastasakis DG, Wang X, Li XL, de Molfetta GA, Ramão A, Lal A, Vidal DO, Hafner M, Silva WA. miR-450a Acts as a Tumor Suppressor in Ovarian Cancer by Regulating Energy Metabolism. Cancer Res 2019; 79:3294-3305. [PMID: 31101765 DOI: 10.1158/0008-5472.can-19-0490] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 04/12/2019] [Accepted: 05/13/2019] [Indexed: 01/17/2023]
Abstract
Dysregulation of miRNA expression is associated with multiple diseases, including cancers, in which small RNAs can have either oncogenic or tumor suppressive functions. Here we investigated the potential tumor suppressive function of miR-450a, one of the most significantly downregulated miRNAs in ovarian cancer. RNA-seq analysis of the ovarian cancer cell line A2780 revealed that overexpression of miR-450a suppressed multiple genes involved in the epithelial-to-mesenchymal transition (EMT). Overexpression of miR-450a reduced tumor migration and invasion and increased anoikis in A2780 and SKOV-3 cell lines and reduced tumor growth in an ovarian tumor xenographic model. Combined AGO-PAR-CLIP and RNA-seq analysis identified a panel of potential miR-450a targets, of which many, including TIMMDC1, MT-ND2, ACO2, and ATP5B, regulate energetic metabolism. Following glutamine withdrawal, miR-450a overexpression decreased mitochondrial membrane potential but increased glucose uptake and viability, characteristics of less invasive ovarian cancer cell lines. In summary, we propose that miR-450a acts as a tumor suppressor in ovarian cancer cells by modulating targets associated with glutaminolysis, which leads to decreased production of lipids, amino acids, and nucleic acids, as well as inhibition of signaling pathways associated with EMT. SIGNIFICANCE: miR-450a limits the metastatic potential of ovarian cancer cells by targeting a set of mitochondrial mRNAs to reduce glycolysis and glutaminolysis.Graphical Abstract: http://cancerres.aacrjournals.org/content/canres/79/13/3294/F1.large.jpg.
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Affiliation(s)
- Bruna Rodrigues Muys
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil.,Center for Cell-Based Therapy (CEPID/FAPESP), National Institute of Science and Technology in Stem Cell and Cell Therapy (INCTC/CNPq), Regional Blood Center of Ribeirão Preto, Ribeirão Preto, Brazil.,Center for Medical Genomics (HCFMRP/USP), Center for Integrative Systems Biology (CISBi-NAP/USP), Ribeirão Preto, Brazil.,Laboratory of Muscle Stem Cells and Gene Regulation, National Institute for Arthritis and Musculoskeletal and Skin Disease, Bethesda, Maryland.,Regulatory RNAs and Cancer Section, Genetics Branch, Center for Cancer Research, NCI, NIH, Bethesda, Maryland
| | - Josane F Sousa
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil.,Center for Cell-Based Therapy (CEPID/FAPESP), National Institute of Science and Technology in Stem Cell and Cell Therapy (INCTC/CNPq), Regional Blood Center of Ribeirão Preto, Ribeirão Preto, Brazil.,Center for Medical Genomics (HCFMRP/USP), Center for Integrative Systems Biology (CISBi-NAP/USP), Ribeirão Preto, Brazil.,Genetics and Molecular Biology Program, Institute of Biological Sciences, Federal University of Para-UFPA, Belem, Brazil
| | - Jessica Rodrigues Plaça
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil.,Center for Cell-Based Therapy (CEPID/FAPESP), National Institute of Science and Technology in Stem Cell and Cell Therapy (INCTC/CNPq), Regional Blood Center of Ribeirão Preto, Ribeirão Preto, Brazil.,Center for Medical Genomics (HCFMRP/USP), Center for Integrative Systems Biology (CISBi-NAP/USP), Ribeirão Preto, Brazil
| | - Luíza Ferreira de Araújo
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil.,Center for Cell-Based Therapy (CEPID/FAPESP), National Institute of Science and Technology in Stem Cell and Cell Therapy (INCTC/CNPq), Regional Blood Center of Ribeirão Preto, Ribeirão Preto, Brazil.,Center for Medical Genomics (HCFMRP/USP), Center for Integrative Systems Biology (CISBi-NAP/USP), Ribeirão Preto, Brazil.,Medical Genomics Laboratory, AC Camargo Cancer Center, São Paulo, Brazil
| | - Aishe A Sarshad
- Laboratory of Muscle Stem Cells and Gene Regulation, National Institute for Arthritis and Musculoskeletal and Skin Disease, Bethesda, Maryland
| | - Dimitrios G Anastasakis
- Laboratory of Muscle Stem Cells and Gene Regulation, National Institute for Arthritis and Musculoskeletal and Skin Disease, Bethesda, Maryland
| | - Xiantao Wang
- Laboratory of Muscle Stem Cells and Gene Regulation, National Institute for Arthritis and Musculoskeletal and Skin Disease, Bethesda, Maryland
| | - Xiao Ling Li
- Regulatory RNAs and Cancer Section, Genetics Branch, Center for Cancer Research, NCI, NIH, Bethesda, Maryland
| | - Greice Andreotti de Molfetta
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil.,Center for Cell-Based Therapy (CEPID/FAPESP), National Institute of Science and Technology in Stem Cell and Cell Therapy (INCTC/CNPq), Regional Blood Center of Ribeirão Preto, Ribeirão Preto, Brazil.,Center for Medical Genomics (HCFMRP/USP), Center for Integrative Systems Biology (CISBi-NAP/USP), Ribeirão Preto, Brazil
| | - Anelisa Ramão
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil.,Center for Cell-Based Therapy (CEPID/FAPESP), National Institute of Science and Technology in Stem Cell and Cell Therapy (INCTC/CNPq), Regional Blood Center of Ribeirão Preto, Ribeirão Preto, Brazil
| | - Ashish Lal
- Regulatory RNAs and Cancer Section, Genetics Branch, Center for Cancer Research, NCI, NIH, Bethesda, Maryland
| | - Daniel Onofre Vidal
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, Brazil
| | - Markus Hafner
- Laboratory of Muscle Stem Cells and Gene Regulation, National Institute for Arthritis and Musculoskeletal and Skin Disease, Bethesda, Maryland.
| | - Wilson A Silva
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil. .,Center for Cell-Based Therapy (CEPID/FAPESP), National Institute of Science and Technology in Stem Cell and Cell Therapy (INCTC/CNPq), Regional Blood Center of Ribeirão Preto, Ribeirão Preto, Brazil.,Center for Medical Genomics (HCFMRP/USP), Center for Integrative Systems Biology (CISBi-NAP/USP), Ribeirão Preto, Brazil
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Du C, Weng Y, Lou J, Zeng G, Liu X, Jin H, Lin S, Tang L. Isobaric tags for relative and absolute quantitation‑based proteomics reveals potential novel biomarkers for the early diagnosis of acute myocardial infarction within 3 h. Int J Mol Med 2019; 43:1991-2004. [PMID: 30896787 PMCID: PMC6443345 DOI: 10.3892/ijmm.2019.4137] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2018] [Accepted: 03/04/2019] [Indexed: 12/13/2022] Open
Abstract
Acute myocardial infarction (AMI) is one of the most common and life-threatening cardiovascular diseases. However, the ability to diagnose AMI within 3 h is currently lacking. The present study aimed to identify the differentially expressed proteins of AMI within 3 h and to investigate novel biomarkers using isobaric tags for relative and absolute quantitation (ITRAQ) technology. A total of 30 beagle dogs were used for establishing the MI models successfully by injecting thrombin powder and a polyethylene microsphere suspension. Serum samples were collected prior to (0 h) and following MI (1, 2 and 3 h). ITRAQ-coupled liquid chromatography-mass spectrometry (LC-MS) technology was used to identify the differentially expressed proteins. The bioinformatics analysis selected several key proteins in the initiation of MI. Further analysis was performed using STRING software. Finally, western blot analysis was used to evaluate the results obtained from ITRAQ. In total, 28 proteins were upregulated and 23 were downregulated in the 1 h/0 h group, 28 proteins were upregulated and 26 were downregulated in the 2 h/0 h group, and 24 proteins were upregulated and 19 were downregulated in the 3 h/0 h group. The Gene Ontology (GO) annotation and functional enrichment analysis identified 19 key proteins. Protein-protein interactions (PPIs) were investigated using the STRING database. GO enrichment analysis revealed that a number of key proteins, including ATP synthase F1 subunit β (ATP5B), cytochrome c oxidase subunit 2 and cytochrome c, were components of the electron transport chain and were involved in energy metabolism. The western blot analysis demonstrated that the expression of ATP5B decreased significantly at all three time points (P<0.01), which was consistent with the ITRAQ results, whereas the expression of fibrinogen γ chain increased at 2 and 3 h (P<0.01) and the expression of integrator complex subunit 4 increased at all three time points (P<0.01), which differed from the ITRAQ results. According to the proteomics of the beagle dog MI model, ATP5B may serve as the potential biomarkers of AMI. Mitochondrial dysfunction and disruption of the electron transport chain may be critical indicators of early MI within 3 h. These finding may provide a novel direction for the diagnosis of AMI.
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Affiliation(s)
- Changqing Du
- Department of Cardiology, Zhejiang Hospital, Hangzhou, Zhejiang 310013, P.R. China
| | - Yingzheng Weng
- Department of Medicine, School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang 325035, P.R. China
| | - Jiangjie Lou
- Department of Medicine, School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang 325035, P.R. China
| | - Guangzhong Zeng
- Department of Cardiology, Pingxiang City People's Hospital, Pingxiang, Jiangxi 337055, P.R. China
| | - Xiaowei Liu
- Department of Cardiology, Zhejiang Hospital, Hangzhou, Zhejiang 310013, P.R. China
| | - Hongfeng Jin
- Department of Cardiology, Zhejiang Hospital, Hangzhou, Zhejiang 310013, P.R. China
| | - Senna Lin
- Department of Medicine, The Second College of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, P.R. China
| | - Lijiang Tang
- Department of Cardiology, Zhejiang Hospital, Hangzhou, Zhejiang 310013, P.R. China
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Proteomic characterization of early lung response to breast cancer metastasis in mice. Exp Mol Pathol 2019; 107:129-140. [PMID: 30763573 DOI: 10.1016/j.yexmp.2019.02.001] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2018] [Revised: 01/25/2019] [Accepted: 02/09/2019] [Indexed: 12/17/2022]
Abstract
INTRODUCTION The tumor-promoting rearrangement of the lungs facilitates the process of cancer cell survival in a foreign microenvironment and enables their protection against immune defense. The study aimed to define the fingerprint of the early rearrangement of the lungs via the proteomic profiling of the lung tissue in the experimental model of tumor metastasis in a murine 4T1 mammary adenocarcinoma. MATERIALS AND METHODS The studies were performed on 7-8-week-old BALB/c female mice. Viable 4T1 cancer cells were orthotopically inoculated into the right mammary fat pad. The experiment was performed in the early phase of the tumor metastasis one and two weeks after cancer cell inoculation. The comparative analysis of protein profiles was carried out with the aid of the two-dimensional difference in gel electrophoresis (2D-DIGE). Proteins, of which expression differed significantly, were identified using nano-liquid chromatography coupled to a high-resolution mass spectrometry (nanoLC/hybrid ion trap- Orbitrap XL Discovery). RESULTS Palpable primary tumors were noted in the 2nd week after cancer cell inoculation. The investigated period preceded the formation of numerous macrometastases in the lungs, however the metastasis-promoting changes were visible very early. Primary tumor-induced inflammation developed in the lungs as early as after the 1st week and progressed during the 2nd week, accompanied by increased concentration of 2-OH-E+, an oxidative stress marker, and imbalance in nitric oxide metabolites, pointing to endothelium dysfunction. The early proteomic changes in the lungs in the 1st week after 4T1 cell inoculation resulted in the reorganization of lung tissue structure [actin, cytoplasmic 1 (Actb), tubulin beta chain (Tubb5), lamin-B1 (Lmnb1), serine protease inhibitor A3K (Serpina3k)] and activation of defense mechanisms [selenium-binding protein 1 (Selenbp1), endoplasmin (Hsp90b1), stress 70 protein, mitochondrial (Hspa9), heat shock protein HSP 90-beta (Hsp90ab1)], but also modifications in metabolic pathways [glucose-6-phosphate 1-dehydrogenase X (G6pdx), ATP synthase subunit beta, mitochondrial (Atp5b), L-lactate dehydrogenase B chain (Ldhb)]. Further development of the solid tumor after the 2nd week following cancer cell inoculation, secretion of prolific tumor-derived factors as well as the presence of the increasing number of circulating cancer cells and extravasation processes further impose reorganization of the lung tissue [Actb, vimentin (Vim), clathrin light chain A (Clta)], altering additional metabolic pathways [annexin A5 (Anxa5), Rho GDP-dissociation inhibitor 2 (Arhgdib), complement 1 Q subcomponent-binding protein, mitochondrial (C1qbp), 14-3-3 protein zeta/delta (Ywhaz), peroxiredoxin-6 (Prdx6), chitinase-like protein 4 (Chi3l4), reticulocalbin-1 (Rcn1), EF-hand domain-containing protein D2 (Efhd2), calumenin (Calu)]. Interestingly, many of differentially expressed proteins were involved in calcium homeostasis (Rcn1, Efhd2, Calu, Actb, Vim, Lmnb1, Clta, Tubb5, Serpina3k, Hsp90b1, Hsp90ab1, Hspa9. G6pdx, Atp5b, Anxa5, Arhgdib, Ywhaz). CONCLUSION The analysis enabled revealing the importance of calcium signaling during the early phase of metastasis development, early cytoskeleton and extracellular matrix reorganization, activation of defense mechanisms and metabolic adaptations. It seems that the tissue response is an interplay between pro- and anti-metastatic mechanisms accompanied by inflammation, oxidative stress and dysfunction of the barrier endothelial cells.
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22
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Rath EM, Cheng YY, Pinese M, Sarun KH, Hudson AL, Weir C, Wang YD, Håkansson AP, Howell VM, Liu GJ, Reid G, Knott RB, Duff AP, Church WB. BAMLET kills chemotherapy-resistant mesothelioma cells, holding oleic acid in an activated cytotoxic state. PLoS One 2018; 13:e0203003. [PMID: 30157247 PMCID: PMC6114908 DOI: 10.1371/journal.pone.0203003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Accepted: 08/13/2018] [Indexed: 12/29/2022] Open
Abstract
Malignant pleural mesothelioma is an aggressive cancer with poor prognosis. Here we have investigated in vitro efficacy of BAMLET and BLAGLET complexes (anti-cancer complexes consisting of oleic acid and bovine α-lactalbumin or β-lactoglobulin respectively) in killing mesothelioma cells, determined BAMLET and BLAGLET structures, and investigated possible biological mechanisms. We performed cell viability assays on 16 mesothelioma cell lines. BAMLET and BLAGLET having increasing oleic acid content inhibited human and rat mesothelioma cell line proliferation at decreasing doses. Most of the non-cancer primary human fibroblasts were more resistant to BAMLET than were human mesothelioma cells. BAMLET showed similar cytotoxicity to cisplatin-resistant, pemetrexed-resistant, vinorelbine-resistant, and parental rat mesothelioma cells, indicating the BAMLET anti-cancer mechanism may be different to drugs currently used to treat mesothelioma. Cisplatin, pemetrexed, gemcitabine, vinorelbine, and BAMLET, did not demonstrate a therapeutic window for mesothelioma compared with immortalised non-cancer mesothelial cells. We demonstrated by quantitative PCR that ATP synthase is downregulated in mesothelioma cells in response to regular dosing with BAMLET. We sought structural insight for BAMLET and BLAGLET activity by performing small angle X-ray scattering, circular dichroism, and scanning electron microscopy. Our results indicate the structural mechanism by which BAMLET and BLAGLET achieve increased cytotoxicity by holding increasing amounts of oleic acid in an active cytotoxic state encapsulated in increasingly unfolded protein. Our structural studies revealed similarity in the molecular structure of the protein components of these two complexes and in their encapsulation of the fatty acid, and differences in the microscopic structure and structural stability. BAMLET forms rounded aggregates and BLAGLET forms long fibre-like aggregates whose aggregation is more stable than that of BAMLET due to intermolecular disulphide bonds. The results reported here indicate that BAMLET and BLAGLET may be effective second-line treatment options for mesothelioma.
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Affiliation(s)
- Emma M. Rath
- Faculty of Pharmacy, University of Sydney, Sydney, NSW, Australia
| | - Yuen Yee Cheng
- Asbestos Diseases Research Institute (ADRI), Concord, NSW, Australia
- University of Sydney, Sydney, NSW, Australia
| | - Mark Pinese
- Kinghorn Cancer Centre and Garvan Institute of Medical Research, Sydney, NSW, Australia
| | - Kadir H. Sarun
- Asbestos Diseases Research Institute (ADRI), Concord, NSW, Australia
| | - Amanda L. Hudson
- Bill Walsh Translational Cancer Research Laboratory, Kolling Institute, University of Sydney, Sydney, NSW, Australia
| | - Christopher Weir
- Northern Blood Research Centre, Kolling Institute, University of Sydney, Sydney, NSW, Australia
| | - Yiwei D. Wang
- Burns Research, ANZAC Research Institute, Concord Hospital, University of Sydney, Concord, NSW, Australia
| | | | - Viive M. Howell
- Bill Walsh Translational Cancer Research Laboratory, Kolling Institute, University of Sydney, Sydney, NSW, Australia
| | - Guo Jun Liu
- Australian Nuclear Science and Technology Organisation (ANSTO), New Illawarra Rd, Lucas Heights, NSW, Australia
- Brain and Mind Centre and Faculty of Health Sciences, University of Sydney, Sydney, NSW, Australia
| | - Glen Reid
- Asbestos Diseases Research Institute (ADRI), Concord, NSW, Australia
- University of Sydney, Sydney, NSW, Australia
| | - Robert B. Knott
- Australian Nuclear Science and Technology Organisation (ANSTO), New Illawarra Rd, Lucas Heights, NSW, Australia
| | - Anthony P. Duff
- Australian Nuclear Science and Technology Organisation (ANSTO), New Illawarra Rd, Lucas Heights, NSW, Australia
| | - W. Bret Church
- Faculty of Pharmacy, University of Sydney, Sydney, NSW, Australia
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Cao K, Arthurs C, Atta-Ul A, Millar M, Beltran M, Neuhaus J, Horn LC, Henrique R, Ahmed A, Thrasivoulou C. Quantitative Analysis of Seven New Prostate Cancer Biomarkers and the Potential Future of the 'Biomarker Laboratory'. Diagnostics (Basel) 2018; 8:diagnostics8030049. [PMID: 30060509 PMCID: PMC6163663 DOI: 10.3390/diagnostics8030049] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 07/11/2018] [Accepted: 07/20/2018] [Indexed: 12/22/2022] Open
Abstract
Prostate cancer is the third highest cause of male mortality in the developed world, with the burden of the disease increasing dramatically with demographic change. There are significant limitations to the current diagnostic regimens and no established effective screening modality. To this end, research has discovered hundreds of potential ‘biomarkers’ that may one day be of use in screening, diagnosis or prognostication. However, the barriers to bringing biomarkers to clinical evaluation and eventually into clinical usage have yet to be realised. This is an operational challenge that requires some new thinking and development of paradigms to increase the efficiency of the laboratory process and add ‘value’ to the clinician. Value comes in various forms, whether it be a process that is seamlessly integrated into the hospital laboratory environment or one that can provide additional ‘information’ for the clinical pathologist in terms of risk profiling. We describe, herein, an efficient and tissue-conserving pipeline that uses Tissue Microarrays in a semi-automated process that could, one day, be integrated into the hospital laboratory domain, using seven putative prostate cancer biomarkers for illustration.
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Affiliation(s)
- Kevin Cao
- Prostate Cancer Research Centre at the Centre for Stem Cells and Regenerative Medicine, King's College London, London WC2R 2LS, UK.
| | - Callum Arthurs
- Prostate Cancer Research Centre at the Centre for Stem Cells and Regenerative Medicine, King's College London, London WC2R 2LS, UK.
| | - Ali Atta-Ul
- Prostate Cancer Research Centre, University College London, London WC1E 6BT, UK.
| | - Michael Millar
- Queen's Medical Research Institute, University of Edinburgh, Edinburgh EH8 9YL, UK.
| | - Mariana Beltran
- Aquila BioMedical, Nine, Edinburgh BioQuarter, 9 Little France Road, Edinburgh EH16 4UX, UK.
| | - Jochen Neuhaus
- Head of Urology Research Laboratories, University of Leipzig, Department of Urology, Research Laboratory, Liebigstr. 19, Building C, 04103 Leipzig, Germany.
| | - Lars-Christian Horn
- Division of Gynecologic, Breast & Perinatal Pathology, University Hospital Leipzig, Liebigstasse 24 D, 04103 Leipzig, Germany.
| | - Rui Henrique
- Department of Pathology, Portuguese Oncology Institute of Porto, 4200-072 Porto, Portugal.
- Department of Pathology and Molecular Immunology, Abel Salazar Institute of Biomedical Sciences, University of Porto, 4099-002 Porto, Portugal.
| | - Aamir Ahmed
- Prostate Cancer Research Centre at the Centre for Stem Cells and Regenerative Medicine, King's College London, London WC2R 2LS, UK.
- Prostate Cancer Research Centre, University College London, London WC1E 6BT, UK.
| | - Christopher Thrasivoulou
- Research Department of Cell and Developmental Biology, The Centre for Cell and Molecular Dynamics, Rockefeller Building, University College London, London WC1E 6BT, UK.
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Burnstock G. Purinergic Signalling: Therapeutic Developments. Front Pharmacol 2017; 8:661. [PMID: 28993732 PMCID: PMC5622197 DOI: 10.3389/fphar.2017.00661] [Citation(s) in RCA: 275] [Impact Index Per Article: 39.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Accepted: 09/05/2017] [Indexed: 12/15/2022] Open
Abstract
Purinergic signalling, i.e., the role of nucleotides as extracellular signalling molecules, was proposed in 1972. However, this concept was not well accepted until the early 1990's when receptor subtypes for purines and pyrimidines were cloned and characterised, which includes four subtypes of the P1 (adenosine) receptor, seven subtypes of P2X ion channel receptors and 8 subtypes of the P2Y G protein-coupled receptor. Early studies were largely concerned with the physiology, pharmacology and biochemistry of purinergic signalling. More recently, the focus has been on the pathophysiology and therapeutic potential. There was early recognition of the use of P1 receptor agonists for the treatment of supraventricular tachycardia and A2A receptor antagonists are promising for the treatment of Parkinson's disease. Clopidogrel, a P2Y12 antagonist, is widely used for the treatment of thrombosis and stroke, blocking P2Y12 receptor-mediated platelet aggregation. Diquafosol, a long acting P2Y2 receptor agonist, is being used for the treatment of dry eye. P2X3 receptor antagonists have been developed that are orally bioavailable and stable in vivo and are currently in clinical trials for the treatment of chronic cough, bladder incontinence, visceral pain and hypertension. Antagonists to P2X7 receptors are being investigated for the treatment of inflammatory disorders, including neurodegenerative diseases. Other investigations are in progress for the use of purinergic agents for the treatment of osteoporosis, myocardial infarction, irritable bowel syndrome, epilepsy, atherosclerosis, depression, autism, diabetes, and cancer.
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Affiliation(s)
- Geoffrey Burnstock
- Autonomic Neuroscience Centre, University College Medical SchoolLondon, United Kingdom
- Department of Pharmacology and Therapeutics, The University of Melbourne, MelbourneVIC, Australia
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