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Li S, Sun J, Li Y, Lv X, Wang L, Song L. CgPHB2 involved in the haemocyte mitophagy in response to Vibrio splendidus stimulation in Pacific oyster Crassostrea gigas. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2024; 156:105168. [PMID: 38522715 DOI: 10.1016/j.dci.2024.105168] [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: 12/18/2023] [Revised: 03/05/2024] [Accepted: 03/21/2024] [Indexed: 03/26/2024]
Abstract
Prohibitin2 (PHB2) is recently identified as a novel inner membrane mitophagy receptor to mediate mitophagy. In the present study, the function of CgPHB2 in mediating mitophagy in response to Vibrio splendidus stimulation was investigated in Crassostrea gigas. CgPHB2 protein was mainly distributed in the cytoplasm of three subpopulations of haemocytes. After V. splendidus stimulation, the expressions of CgPHB2 mRNA in haemocytes were up-regulated significantly at 6, 12 and 24 h, and the abundance of CgPHB2 protein was also enhanced at 12-24 h compared to control group. Furthermore, the green signals of CgPHB2 were colocalized respectively with the red signals of mitochondria and CgLC3 in the haemocytes at 12 h after V. splendidus stimulation, and the co-localization value of CgPHB2 and mtphagy Dye was significantly increased. The direct interaction between CgPHB2 and CgLC3 was simulated by molecular docking. In PHB2-inhibitor Fluorizoline-treated oysters, the mRNA expressions of mitophagy-related genes and the ratio of mitophagy were significantly decreased in haemocytes of oysters after V. splendidus stimulation. All the results collectively suggested that CgPHB2 participated in mediating the haemocyte mitophagy in the antibacterial immune response of oysters.
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Affiliation(s)
- Shurong Li
- Liaoning Key Laboratory of Marine Animal Immunology & Disease Control, Dalian Ocean University, Dalian, 116023, China; Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Dalian Key Laboratory of Aquatic Animal Disease Control, Dalian Ocean University, Dalian, 116023, China
| | - Jiejie Sun
- Liaoning Key Laboratory of Marine Animal Immunology & Disease Control, Dalian Ocean University, Dalian, 116023, China; Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Dalian Key Laboratory of Aquatic Animal Disease Control, Dalian Ocean University, Dalian, 116023, China.
| | - Yinan Li
- Liaoning Key Laboratory of Marine Animal Immunology & Disease Control, Dalian Ocean University, Dalian, 116023, China; Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Dalian Key Laboratory of Aquatic Animal Disease Control, Dalian Ocean University, Dalian, 116023, China
| | - Xiaoqian Lv
- Liaoning Key Laboratory of Marine Animal Immunology & Disease Control, Dalian Ocean University, Dalian, 116023, China; Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Dalian Key Laboratory of Aquatic Animal Disease Control, Dalian Ocean University, Dalian, 116023, China
| | - Lingling Wang
- Liaoning Key Laboratory of Marine Animal Immunology & Disease Control, Dalian Ocean University, Dalian, 116023, China; Laboratory of Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266235, China; Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Dalian Key Laboratory of Aquatic Animal Disease Control, Dalian Ocean University, Dalian, 116023, China.
| | - Linsheng Song
- Liaoning Key Laboratory of Marine Animal Immunology & Disease Control, Dalian Ocean University, Dalian, 116023, China; Laboratory of Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266235, China; Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Dalian Key Laboratory of Aquatic Animal Disease Control, Dalian Ocean University, Dalian, 116023, China
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Srivastava A, Mishra S, Avadhesh, Shekher A, Rai V, Dhasmana A, Das J, Perenzoni D, Iori R, Gupta SC. Moringin, an isothiocyanate modulates multiple cellular signalling molecules in breast cancer cells. Cell Signal 2024; 119:111181. [PMID: 38643946 DOI: 10.1016/j.cellsig.2024.111181] [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: 11/28/2023] [Revised: 03/27/2024] [Accepted: 04/14/2024] [Indexed: 04/23/2024]
Abstract
Prohibitin (PHB) is a pleiotropic molecule with a variety of known functions and subcellular locations. PHB's function in breast cancer is poorly understood. Herein, we report that PHB is expressed in cancer types of diverse origin including breast cancer. The cancer patients with changes in PHB were reported to have significantly reduced 'overall survival' in comparison to the cases without alterations in PHB. The expression of PHB was increased by H2O2 and also by Moringin (MG), which is an isothiocyanate derived from the seeds of Moringa oleifera. MG interacted with PHB, DRP1, and SLP2 and inhibited the growth of MCF-7 and MDAMB-231 cells. The isothiocyanate triggered apoptosis in breast cancer cells as revealed by AO/PI assay, phosphatidylserine externalization, cell cycle analysis and DAPI staining. MG induced proapoptotic proteins expression such as cytochrome c, p53, and cleaved caspase-7. Further, cell survival proteins such as survivin, Bcl-2, and Bcl-xL were suppressed. A depolarization of membrane potential suggested that the apoptosis was triggered through mitochondria. The isothiocyanate suppressed the cancer cell migration and interacted with NF-κB subunits. MG suppressed p65 nuclear translocation induced by TNF-α. The reactive oxygen species generation was also induced by the isothiocyanate in breast cancer cells. MG also modulated the expression of lncRNAs. Collectively, the functions of PHB in breast cancer growth is evident from this study. The activities of MG against breast cancer might result from its ability to modulate multiple cancer-related targets.
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Affiliation(s)
- Ankit Srivastava
- Department of Biochemistry, Institute of Science, Banaras Hindu University, Varanasi 221 005, India
| | - Shruti Mishra
- Department of Biochemistry, Institute of Science, Banaras Hindu University, Varanasi 221 005, India
| | - Avadhesh
- Department of Biochemistry, Institute of Science, Banaras Hindu University, Varanasi 221 005, India
| | - Anusmita Shekher
- Department of Biochemistry, Institute of Science, Banaras Hindu University, Varanasi 221 005, India; Department of General Surgery, Institute of Medical Sciences, Banaras Hindu University, Varanasi 221005, India
| | - Vipin Rai
- Department of Biochemistry, Institute of Science, Banaras Hindu University, Varanasi 221 005, India
| | - Anupam Dhasmana
- Department of Bioscience and Cancer Research Institute, Himalayan Institute of Medical Sciences, Swami Rama Himalayan University, Dehradun 248 016, India; Department of Immunology and Microbiology, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX, USA
| | - Jayanta Das
- Department of Biochemistry, All India Institute of Medical Sciences, Guwahati, India
| | - Daniele Perenzoni
- Department of Food Quality and Nutrition, Research and Innovation Centre, Fondazione Edmund Mach (FEM), San Michele all'Adige, Italy
| | - Renato Iori
- Department of Food Quality and Nutrition, Research and Innovation Centre, Fondazione Edmund Mach (FEM), San Michele all'Adige, Italy
| | - Subash C Gupta
- Department of Biochemistry, Institute of Science, Banaras Hindu University, Varanasi 221 005, India; Department of Biochemistry, All India Institute of Medical Sciences, Guwahati, India.
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Liang YX, Sun XY, Xu DZ, Gao YN, Tang Q, Lu ZL, Liu Y. Codelivery of CPT and siPHB1 with GSH/ROS Dual-Responsive Hybrid Nanoparticles Based on a [12]aneN 3-Derived Lipid for Synergistic Lung Cancer Therapy. ACS APPLIED BIO MATERIALS 2024; 7:3202-3214. [PMID: 38651918 DOI: 10.1021/acsabm.4c00206] [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] [Indexed: 04/25/2024]
Abstract
The combination of small-interfering RNA (siRNA)-mediated gene silencing and chemotherapeutic agents for lung cancer treatment has attracted widespread attention in terms of a greater therapeutic effect, minimization of systemic toxicity, and inhibition of multiple drug resistance (MDR). In this work, three amphiphiles, CBN1-CBN3, were first designed and synthesized as a camptothecin (CPT) conjugate and gene condensation agents by the combination of CPT prodrugs and di(triazole-[12]aneN3) through the ROS-responsive phenylborate ester and different lengths of alkyl chains (with 6, 9, 12 carbon chains for CBN1-CBN3, respectively). CBN1-CBN3 were able to be self-assembled into liposomes with an average diameter in the range of 320-240 nm, showing the ability to effectively condense siRNA. Among them, CBN2, with a nine-carbon alkyl chain, displayed the best anticancer efficiency in A549 cells. In order to give nanomedicines a stealth property and PEGylation/dePEGylation transition, a GSH-responsive PEGylated TPE derivative containing a disulfide linkage (TSP) was further designed and prepared. A combination of CBN2/siRNA complexes and DOPE with TSP resulted in GSH/ROS dual-responsive lipid-polymer hybrid nanoparticles (CBN2-DP/siRNA NPs). In present GSH and H2O2, CBN2-DP/siRNA NPs were decomposed, resulting in the controlled release of CPT drug and siRNA. In vitro, CBN2-DP/siPHB1 NPs showed the best anticancer activity for suppression of about 75% of A549 cell proliferation in a serum medium. The stability of CBN2-DP/siRNA NPs was significantly prolonged in blood circulation, and they showed effective accumulation in the A549 tumor site through an enhanced permeability and retention (EPR) effect. In vivo, CBN2-DP/siPHB1 NPs demonstrated enhanced synergistic cancer therapy efficacy and tumor inhibition as high as 71.2%. This work provided a strategy for preparing lipid-polymer hybrid NPs with GSH/ROS dual-responsive properties and an intriguing method for lung cancer therapy.
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Affiliation(s)
- Ya-Xuan Liang
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Xue-Yi Sun
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - De-Zhong Xu
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Yi-Nan Gao
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Quan Tang
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Zhong-Lin Lu
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Yang Liu
- China National Institute for Food and Drug Control, Institute of Chemical Drug Control, HuaTuo Road 29, Beijing 100050, China
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Todosenko N, Yurova K, Vulf M, Khaziakhmatova O, Litvinova L. Prohibitions in the meta-inflammatory response: a review. Front Mol Biosci 2024; 11:1322687. [PMID: 38813101 PMCID: PMC11133639 DOI: 10.3389/fmolb.2024.1322687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 05/01/2024] [Indexed: 05/31/2024] Open
Abstract
Prohibitins are the central regulatory element of cellular homeostasis, especially by modulating the response at different levels: Nucleus, mitochondria and membranes. Their localization and interaction with various proteins, homons, transcription and nuclear factors, and mtDNA indicate the globality and complexity of their pleiotropic properties, which remain to be investigated. A more detailed deciphering of cellular metabolism in relation to prohibitins under normal conditions and in various metabolic diseases will allow us to understand the precise role of prohibitins in the signaling cascades of PI3K/Akt, Raf/MAP/ERK, STAT3, p53, and others and to fathom their mutual influence. A valuable research perspective is to investigate the role of prohibitins in the molecular and cellular interactions between the two major players in the pathogenesis of obesity-adipocytes and macrophages - that form the basis of the meta-inflammatory response. Investigating the subtle intercellular communication and molecular cascades triggered in these cells will allow us to propose new therapeutic strategies to eliminate persistent inflammation, taking into account novel molecular genetic approaches to activate/inactivate prohibitins.
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Affiliation(s)
- Natalia Todosenko
- Center for Immunology and Cellular Biotechnology, Immanuel Kant Baltic Federal University, Kaliningrad, Russia
| | - Kristina Yurova
- Center for Immunology and Cellular Biotechnology, Immanuel Kant Baltic Federal University, Kaliningrad, Russia
| | - Maria Vulf
- Center for Immunology and Cellular Biotechnology, Immanuel Kant Baltic Federal University, Kaliningrad, Russia
| | - Olga Khaziakhmatova
- Center for Immunology and Cellular Biotechnology, Immanuel Kant Baltic Federal University, Kaliningrad, Russia
| | - Larisa Litvinova
- Center for Immunology and Cellular Biotechnology, Immanuel Kant Baltic Federal University, Kaliningrad, Russia
- Laboratory of Cellular and Microfluidic Technologies, Siberian State Medical University, Tomsk, Russia
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Qin P, Li Q, Zu Q, Dong R, Qi Y. Natural products targeting autophagy and apoptosis in NSCLC: a novel therapeutic strategy. Front Oncol 2024; 14:1379698. [PMID: 38628670 PMCID: PMC11019012 DOI: 10.3389/fonc.2024.1379698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 03/18/2024] [Indexed: 04/19/2024] Open
Abstract
Lung cancer is the leading cause of cancer-related mortality worldwide, with non-small cell lung cancer (NSCLC) being the predominant type. The roles of autophagy and apoptosis in NSCLC present a dual and intricate nature. Additionally, autophagy and apoptosis interconnect through diverse crosstalk molecules. Owing to their multitargeting nature, safety, and efficacy, natural products have emerged as principal sources for NSCLC therapeutic candidates. This review begins with an exploration of the mechanisms of autophagy and apoptosis, proceeds to examine the crosstalk molecules between these processes, and outlines their implications and interactions in NSCLC. Finally, the paper reviews natural products that have been intensively studied against NSCLC targeting autophagy and apoptosis, and summarizes in detail the four most retrieved representative drugs. This paper clarifies good therapeutic effects of natural products in NSCLC by targeting autophagy and apoptosis and aims to promote greater consideration by researchers of natural products as candidates for anti-NSCLC drug discovery.
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Affiliation(s)
- Peiyi Qin
- First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, China
- Shandong College of Traditional Chinese Medicine, Yantai, Shandong, China
| | - Qingchen Li
- Department of Orthopedics, First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Qi Zu
- Shandong College of Traditional Chinese Medicine, Yantai, Shandong, China
| | - Ruxue Dong
- Shandong College of Traditional Chinese Medicine, Yantai, Shandong, China
| | - Yuanfu Qi
- Department of Oncology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
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Fan W, Cao D, Yang B, Wang J, Li X, Kitka D, Li TWH, You S, Shiao S, Gangi A, Posadas E, Di Vizio D, Tomasi ML, Seki E, Mato JM, Yang H, Lu SC. Hepatic prohibitin 1 and methionine adenosyltransferase α1 defend against primary and secondary liver cancer metastasis. J Hepatol 2024; 80:443-453. [PMID: 38086446 PMCID: PMC10922446 DOI: 10.1016/j.jhep.2023.11.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 11/06/2023] [Accepted: 11/13/2023] [Indexed: 12/24/2023]
Abstract
BACKGROUND & AIMS The liver is a common site of cancer metastasis, most commonly from colorectal cancer, and primary liver cancers that have metastasized are associated with poor outcomes. The underlying mechanisms by which the liver defends against these processes are largely unknown. Prohibitin 1 (PHB1) and methionine adenosyltransferase 1A (MAT1A) are highly expressed in the liver. They positively regulate each other and their deletion results in primary liver cancer. Here we investigated their roles in primary and secondary liver cancer metastasis. METHODS We identified common target genes of PHB1 and MAT1A using a metastasis array, and measured promoter activity and transcription factor binding using luciferase reporter assays and chromatin immunoprecipitation, respectively. We examined how PHB1 or MAT1A loss promotes liver cancer metastasis and whether their loss sensitizes to colorectal liver metastasis (CRLM). RESULTS Matrix metalloproteinase-7 (MMP-7) is a common target of MAT1A and PHB1 and its induction is responsible for increased migration and invasion when MAT1A or PHB1 is silenced. Mechanistically, PHB1 and MAT1A negatively regulate MMP7 promoter activity via an AP-1 site by repressing the MAFG-FOSB complex. Loss of MAT1A or PHB1 also increased MMP-7 in extracellular vesicles, which were internalized by colon and pancreatic cancer cells to enhance their oncogenicity. Low hepatic MAT1A or PHB1 expression sensitized to CRLM, but not if endogenous hepatic MMP-7 was knocked down first, which lowered CD4+ T cells while increasing CD8+ T cells in the tumor microenvironment. Hepatocytes co-cultured with colorectal cancer cells express less MAT1A/PHB1 but more MMP-7. Consistently, CRLM raised distant hepatocytes' MMP-7 expression in mice and humans. CONCLUSION We have identified a PHB1/MAT1A-MAFG/FOSB-MMP-7 axis that controls primary liver cancer metastasis and sensitization to CRLM. IMPACT AND IMPLICATIONS Primary and secondary liver cancer metastasis is associated with poor outcomes but whether the liver has underlying defense mechanism(s) against metastasis is unknown. Here we examined the hypothesis that hepatic prohibitin 1 (PHB1) and methionine adenosyltransferase 1A (MAT1A) cooperate to defend the liver against metastasis. Our studies found PHB1 and MAT1A form a complex that suppresses matrix metalloproteinase-7 (MMP-7) at the transcriptional level and loss of either PHB1 or MAT1A sensitizes the liver to metastasis via MMP-7 induction. Strategies that target the PHB1/MAT1A-MMP-7 axis may be a promising approach for the treatment of primary and secondary liver cancer metastasis.
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Affiliation(s)
- Wei Fan
- Karsh Division of Gastroenterology and Hepatology, Cedars-Sinai Medical Center (CSMC), Los Angeles, CA 90048, USA
| | - DuoYao Cao
- Department of Biomedical Sciences, CSMC, Los Angeles, CA 90048, USA
| | - Bing Yang
- Karsh Division of Gastroenterology and Hepatology, Cedars-Sinai Medical Center (CSMC), Los Angeles, CA 90048, USA; Department of Geriatric Endocrinology and Metabolism, Guangxi Key Laboratory of Precision Medicine in Cardio-cerebrovascular Diseases Control and Prevention, Guangxi Clinical Research Center for Cardio-cerebrovascular Diseases, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, 530021, China
| | - Jiaohong Wang
- Karsh Division of Gastroenterology and Hepatology, Cedars-Sinai Medical Center (CSMC), Los Angeles, CA 90048, USA
| | - Xiaomo Li
- Department of Pathology, CSMC, Los Angeles CA 90048, USA
| | - Diana Kitka
- Department of Biomedical Sciences, CSMC, Los Angeles, CA 90048, USA; Department of Surgery, Cedars-Sinai Cancer, CSMC, Los Angeles, CA, 90048, USA
| | - Tony W H Li
- Karsh Division of Gastroenterology and Hepatology, Cedars-Sinai Medical Center (CSMC), Los Angeles, CA 90048, USA
| | - Sungyong You
- Department of Biomedical Sciences, CSMC, Los Angeles, CA 90048, USA; Department of Surgery, Cedars-Sinai Cancer, CSMC, Los Angeles, CA, 90048, USA
| | - Stephen Shiao
- Department of Radiation Oncology, CSMC, LA, CA 90048, USA
| | | | | | - Dolores Di Vizio
- Department of Biomedical Sciences, CSMC, Los Angeles, CA 90048, USA; Department of Surgery, Cedars-Sinai Cancer, CSMC, Los Angeles, CA, 90048, USA
| | - Maria Lauda Tomasi
- Karsh Division of Gastroenterology and Hepatology, Cedars-Sinai Medical Center (CSMC), Los Angeles, CA 90048, USA
| | - Ekihiro Seki
- Karsh Division of Gastroenterology and Hepatology, Cedars-Sinai Medical Center (CSMC), Los Angeles, CA 90048, USA
| | - José M Mato
- CIC bioGUNE, Centro de Investigación Biomédica en Red de Enfermedades Hepáticasy Digestivas (Ciberehd), Basque Research and Technology Alliance (BRTA), Technology, Park of Bizkaia, 48160 Derio, Bizkaia, Spain
| | - Heping Yang
- Karsh Division of Gastroenterology and Hepatology, Cedars-Sinai Medical Center (CSMC), Los Angeles, CA 90048, USA
| | - Shelly C Lu
- Karsh Division of Gastroenterology and Hepatology, Cedars-Sinai Medical Center (CSMC), Los Angeles, CA 90048, USA.
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Shi JJ, Wang YK, Wang MQ, Deng J, Gao N, Li M, Li YP, Zhang X, Jia XL, Liu XT, Dang SS, Wang WJ. Prohibitin 1 inhibits cell proliferation and induces apoptosis via the p53-mediated mitochondrial pathway in vitro. World J Gastrointest Oncol 2024; 16:398-413. [PMID: 38425403 PMCID: PMC10900163 DOI: 10.4251/wjgo.v16.i2.398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 11/23/2023] [Accepted: 01/09/2024] [Indexed: 02/02/2024] Open
Abstract
BACKGROUND Prohibitin 1 (PHB1) has been identified as an antiproliferative protein that is highly conserved and ubiquitously expressed, and it participates in a variety of essential cellular functions, including apoptosis, cell cycle regulation, proliferation, and survival. Emerging evidence indicates that PHB1 may play an important role in the progression of hepatocellular carcinoma (HCC). However, the role of PHB1 in HCC is controversial. AIM To investigate the effects of PHB1 on the proliferation and apoptosis of human HCC cells and the relevant mechanisms in vitro. METHODS HCC patients and healthy individuals were enrolled in this study according to the inclusion and exclusion criteria; then, PHB1 levels in the sera and liver tissues of these participates were determined using ELISA, RT-PCR, and immunohistochemistry. Human HepG2 and SMMC-7721 cells were transfected with the pEGFP-PHB1 plasmid and PHB1-specific shRNA (shRNA-PHB1) for 24-72 h. Cell proliferation was analysed with an MTT assay. Cell cycle progression and apoptosis were analysed using flow cytometry (FACS). The mRNA and protein expression levels of the cell cycle-related molecules p21, Cyclin A2, Cyclin E1, and CDK2 and the cell apoptosis-related molecules cytochrome C (Cyt C), p53, Bcl-2, Bax, caspase 3, and caspase 9 were measured by real-time PCR and Western blot, respectively. RESULTS Decreased levels of PHB1 were found in the sera and liver tissues of HCC patients compared to those of healthy individuals, and decreased PHB1 was positively correlated with low differentiation, TNM stage III-IV, and alpha-fetoprotein ≥ 400 μg/L. Overexpression of PHB1 significantly inhibited human HCC cell proliferation in a time-dependent manner. FACS revealed that the overexpression of PHB1 arrested HCC cells in the G0/G1 phase of the cell cycle and induced apoptosis. The proportion of cells in the G0/G1 phase was significantly increased and the proportion of cells in the S phase was decreased in HepG2 cells that were transfected with pEGFP-PHB1 compared with untreated control and empty vector-transfected cells. The percentage of apoptotic HepG2 cells that were transfected with pEGFP-PHB1 was 15.41% ± 1.06%, which was significantly greater than that of apoptotic control cells (3.65% ± 0.85%, P < 0.01) and empty vector-transfected cells (4.21% ± 0.52%, P < 0.01). Similar results were obtained with SMMC-7721 cells. Furthermore, the mRNA and protein expression levels of p53, p21, Bax, caspase 3, and caspase 9 were increased while the mRNA and protein expression levels of Cyclin A2, Cyclin E1, CDK2, and Bcl-2 were decreased when PHB1 was overexpressed in human HCC cells. However, when PHB1 was upregulated in human HCC cells, Cyt C expression levels were increased in the cytosol and decreased in the mitochondria, which indicated that Cyt C had been released into the cytosol. Conversely, these effects were reversed when PHB1 was knocked down. CONCLUSION PHB1 inhibits human HCC cell viability by arresting the cell cycle and inducing cell apoptosis via activation of the p53-mediated mitochondrial pathway.
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Affiliation(s)
- Juan-Juan Shi
- Department of Infectious Diseases, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi'an 710004, Shaanxi Province, China
| | - Yi-Kai Wang
- Department of Infectious Diseases, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi'an 710004, Shaanxi Province, China
| | - Mu-Qi Wang
- Department of Infectious Diseases, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi'an 710004, Shaanxi Province, China
| | - Jiang Deng
- Department of Infectious Diseases, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi'an 710004, Shaanxi Province, China
| | - Ning Gao
- Department of Infectious Diseases, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi'an 710004, Shaanxi Province, China
| | - Mei Li
- Department of Infectious Diseases, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi'an 710004, Shaanxi Province, China
| | - Ya-Ping Li
- Department of Infectious Diseases, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi'an 710004, Shaanxi Province, China
| | - Xin Zhang
- Department of Infectious Diseases, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi'an 710004, Shaanxi Province, China
| | - Xiao-Li Jia
- Department of Infectious Diseases, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi'an 710004, Shaanxi Province, China
| | - Xiong-Tao Liu
- Department of Operating Room, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi'an 710004, Shaanxi Province, China
| | - Shuang-Suo Dang
- Department of Infectious Diseases, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi'an 710004, Shaanxi Province, China
| | - Wen-Jun Wang
- Department of Infectious Diseases, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi'an 710004, Shaanxi Province, China
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Kersten R, Trampert DC, Hubers LM, Tolenaars D, Vos HR, van de Graaf SFJ, Beuers U. Galectin-3 and prohibitin 1 are autoantigens in IgG4-related cholangitis without clear-cut protective effects against toxic bile acids. Front Immunol 2024; 14:1251134. [PMID: 38332916 PMCID: PMC10851949 DOI: 10.3389/fimmu.2023.1251134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 12/15/2023] [Indexed: 02/10/2024] Open
Abstract
Background and aims IgG4-related cholangitis (IRC) is the hepatobiliary manifestation of IgG4-related disease, a systemic B cell-driven fibro-inflammatory disorder. Four autoantigens have recently been described in IgG4-RD: annexin A11, galectin-3, laminin 511-E8, and prohibitin 1. We have previously reported a protective role of annexin A11 and laminin 511-E8 in human cholangiocytes against toxic bile acids. Here, we explored the potentially protective role of the carbohydrate-binding lectin galectin-3 and the scaffold proteins prohibitins 1 and 2. Methods Anti-galectin-3, anti-prohibitin 1 and 2 autoantibody positivity in IRC and healthy and disease (primary sclerosing cholangitis (PSC)) control sera was assessed by ELISA/liquid chromatography-tandem mass spectrometry (LC-MS/MS). Human H69 cholangiocytes were subjected to short hairpin RNA (shRNA) knockdown targeting galectin-3 (LGALS3), prohibitin 1 (PHB1), and prohibitin 2 (PHB2). H69 cholangiocytes were also exposed to recombinant galectin-3, the inhibitor GB1107, recombinant prohibitin 1, and the pan-prohibitin inhibitor rocaglamide. Protection against bile acid toxicity was assessed by intracellular pH (pHi) measurements using BCECF-AM, 22,23-3H-glycochenodeoxycholic acid (3H-GCDC) influx, and GCDC-induced apoptosis using Caspase-3/7 assays. Results Anti-galectin-3 autoantibodies were detected in 13.5% of individuals with IRC but not in PSC. Knockdown of LGALS3 and galectin-3 inhibition with GB1107 did not affect pHi, whereas recombinant galectin-3 incubation lowered pHi. LGALS3 knockdown increased GCDC-influx but not GCDC-induced apoptosis. GB1107 reduced GCDC-influx and GCDC-induced apoptosis. Recombinant galectin-3 tended to decrease GCDC-influx and GCDC-induced apoptosis. Anti-prohibitin 1 autoantibodies were detected in 61.5% and 35.7% of individuals with IRC and PSC, respectively. Knockdown of PHB1, combined PHB1/2 KD, treatment with rocaglamide, and recombinant prohibitin 1 all lowered pHi. Knockdown of PHB1, PHB2, or combined PHB1/2 did not alter GCDC-influx, yet knockdown of PHB1 increased GCDC-induced apoptosis. Conversely, rocaglamide reduced GCDC-influx but did not attenuate GCDC-induced apoptosis. Recombinant prohibitin 1 did not affect GCDC-influx or GCDC-induced apoptosis. Finally, anti-galectin-3 and anti-prohibitin 1 autoantibody pretreatment did not lead to increased GCDC-influx. Conclusions A subset of individuals with IRC have autoantibodies against galectin-3 and prohibitin 1. Gene-specific knockdown, pharmacological inhibition, and recombinant protein substitution did not clearly disclose a protective role of these autoantigens in human cholangiocytes against toxic bile acids. The involvement of these autoantibodies in processes surpassing epithelial secretion remains to be elucidated.
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Affiliation(s)
- Remco Kersten
- Tytgat Institute for Liver and Intestinal Research, Department of Gastroenterology and Hepatology, Amsterdam Gastroenterology Endocrinology Metabolism (AGEM), Amsterdam University Medical Center (UMC), University of Amsterdam, Amsterdam, Netherlands
| | - David C. Trampert
- Tytgat Institute for Liver and Intestinal Research, Department of Gastroenterology and Hepatology, Amsterdam Gastroenterology Endocrinology Metabolism (AGEM), Amsterdam University Medical Center (UMC), University of Amsterdam, Amsterdam, Netherlands
| | - Lowiek M. Hubers
- Tytgat Institute for Liver and Intestinal Research, Department of Gastroenterology and Hepatology, Amsterdam Gastroenterology Endocrinology Metabolism (AGEM), Amsterdam University Medical Center (UMC), University of Amsterdam, Amsterdam, Netherlands
| | - Dagmar Tolenaars
- Tytgat Institute for Liver and Intestinal Research, Department of Gastroenterology and Hepatology, Amsterdam Gastroenterology Endocrinology Metabolism (AGEM), Amsterdam University Medical Center (UMC), University of Amsterdam, Amsterdam, Netherlands
| | - Harmjan R. Vos
- Oncode Institute and Molecular Cancer Research, Center for Molecular Medicine, University Medical Center Utrecht, Utrecht, Netherlands
| | - Stan F. J. van de Graaf
- Tytgat Institute for Liver and Intestinal Research, Department of Gastroenterology and Hepatology, Amsterdam Gastroenterology Endocrinology Metabolism (AGEM), Amsterdam University Medical Center (UMC), University of Amsterdam, Amsterdam, Netherlands
| | - Ulrich Beuers
- Tytgat Institute for Liver and Intestinal Research, Department of Gastroenterology and Hepatology, Amsterdam Gastroenterology Endocrinology Metabolism (AGEM), Amsterdam University Medical Center (UMC), University of Amsterdam, Amsterdam, Netherlands
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9
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Xu L, Xiang W, Yang J, Gao J, Wang X, Meng L, Ye K, Zhao XH, Zhang XD, Jin L, Ye Y. PHB2 promotes SHIP2 ubiquitination via the E3 ligase NEDD4 to regulate AKT signaling in gastric cancer. J Exp Clin Cancer Res 2024; 43:17. [PMID: 38200519 PMCID: PMC10782615 DOI: 10.1186/s13046-023-02937-1] [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: 09/20/2023] [Accepted: 12/18/2023] [Indexed: 01/12/2024] Open
Abstract
BACKGROUND Prohibitin 2 (PHB2) exhibits opposite functions of promoting or inhibiting tumour across various cancer types. In this study, we aim to investigate its functions and underlying mechanisms in the context of gastric cancer (GC). METHODS PHB2 protein expression levels in GC and normal tissues were examined using western blot and immunohistochemistry. PHB2 expression level associations with patient outcomes were examined through Kaplan-Meier plotter analysis utilizing GEO datasets (GSE14210 and GSE29272). The biological role of PHB2 and its subsequent regulatory mechanisms were elucidated in vitro and in vivo. GC cell viability and proliferation were assessed using MTT cell viability analysis, clonogenic assays, and BrdU incorporation assays, while the growth of GC xenografted tumours was measured via IHC staining of Ki67. The interaction among PHB2 and SHIP2, as well as between SHIP2 and NEDD4, was identified through co-immunoprecipitation, GST pull-down assays, and deletion-mapping experiments. SHIP2 ubiquitination and degradation were assessed using cycloheximide treatment, plasmid transfection and co-immunoprecipitation, followed by western blot analysis. RESULTS Our analysis revealed a substantial increase in PHB2 expression in GC tissues compared to adjacent normal tissues. Notably, higher PHB2 levels correlated with poorer patient outcomes, suggesting its clinical relevance. Functionally, silencing PHB2 in GC cells significantly reduced cell proliferation and retarded GC tumour growth, whereas overexpression of PHB2 further enhanced GC cell proliferation. Mechanistically, PHB2 physically interacted with Src homology 2-containing inositol 5-phosphatase 2 (SHIP2) in the cytoplasm of GC cells, thus leading to SHIP2 degradation via its novel E3 ligase NEDD4. It subsequently activated the PI3K/Akt signaling pathway and thus promoted GC cell proliferation. CONCLUSIONS Our findings highlight the importance of PHB2 upregulation in driving GC progression and its association with adverse patient outcomes. Understanding the functional impact of PHB2 on GC growth contributes valuable insights into the molecular underpinnings of GC and may pave the way for the development of targeted therapies to improve patient outcomes.
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Affiliation(s)
- Liang Xu
- Department of Immunology, School of Basic Medical Sciences, Anhui Medical University, Hefei, 230032, Anhui, China
- School of Biomedical Sciences and Pharmacy, The University of Newcastle, Newcastle, NSW, 2308, Australia
| | - Wanying Xiang
- Department of Immunology, School of Basic Medical Sciences, Anhui Medical University, Hefei, 230032, Anhui, China
| | - Jiezhen Yang
- Department of Pathology, Zhongshan Hospital (Xiamen Branch), Fudan University, Xiamen, 361015, China
| | - Jing Gao
- Department of Immunology, School of Basic Medical Sciences, Anhui Medical University, Hefei, 230032, Anhui, China
| | - Xinyue Wang
- Department of Immunology, School of Basic Medical Sciences, Anhui Medical University, Hefei, 230032, Anhui, China
| | - Li Meng
- Department of Immunology, School of Basic Medical Sciences, Anhui Medical University, Hefei, 230032, Anhui, China
| | - Kaihong Ye
- Translational Research Institute, Henan Provincial and Zhengzhou City Key Laboratory of Non-Coding RNA and Cancer Metabolism, Henan International Join Laboratory of Non-Coding RNA and Metabolism in Cancer, Henan Provincial People's Hospital, Academy of Medical Sciences, Zhengzhou University, Zhengzhou, 450053, Henan, China
| | - Xiao Hong Zhao
- School of Biomedical Sciences and Pharmacy, The University of Newcastle, Newcastle, NSW, 2308, Australia
| | - Xu Dong Zhang
- School of Biomedical Sciences and Pharmacy, The University of Newcastle, Newcastle, NSW, 2308, Australia.
- Translational Research Institute, Henan Provincial and Zhengzhou City Key Laboratory of Non-Coding RNA and Cancer Metabolism, Henan International Join Laboratory of Non-Coding RNA and Metabolism in Cancer, Henan Provincial People's Hospital, Academy of Medical Sciences, Zhengzhou University, Zhengzhou, 450053, Henan, China.
| | - Lei Jin
- Translational Research Institute, Henan Provincial and Zhengzhou City Key Laboratory of Non-Coding RNA and Cancer Metabolism, Henan International Join Laboratory of Non-Coding RNA and Metabolism in Cancer, Henan Provincial People's Hospital, Academy of Medical Sciences, Zhengzhou University, Zhengzhou, 450053, Henan, China.
- School of Medicine and Public Health, The University of Newcastle, Newcastle, NSW, 2308, Australia.
| | - Yan Ye
- Department of Immunology, School of Basic Medical Sciences, Anhui Medical University, Hefei, 230032, Anhui, China.
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10
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Khatua S, Roy A, Sen P, Ray S. Elucidation of the structural dynamics of mutations in PHB2 protein associated with growth suppression and cancer progression. Gene 2024; 890:147820. [PMID: 37739195 DOI: 10.1016/j.gene.2023.147820] [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: 07/16/2023] [Revised: 09/03/2023] [Accepted: 09/19/2023] [Indexed: 09/24/2023]
Abstract
Prohibitin is a multifunctional protein that plays an important role in numerous cellular processes. Membrane-associated mitochondrial prohibitin complex is made up of two subunits, PHB1 and PHB2 which are ubiquitously expressed and analogous to each other. High levels of prohibitin expression have consequently been found in esophageal cancer, endometrial adenocarcinoma, gastric cancer, hepatocellular carcinoma, breast cancer and bladder cancer. The aim of this study is to analyse two-point mutation PHB2_MT1(I → A) and PHB2_MT2(I → P), their effect on PHB2 protein and its effect on formation of mitochondrial complex. It is a residual level study, based on current experimental validation. To establish the effects of the two-point mutations, computational approaches such as molecular modelling, molecular docking, normal mode simulation, molecular dynamics simulations and MM/GBSA were used. An analysis of the energy dynamics of both unbound and complex proteins was conducted to elucidate how mutations impact the energy distribution of PHB2. Our study confirmed that the two mutations decreased the overall stability of PHB2. This was evidenced by heightened atomic fluctuations within the mutated region, accompanied by elevated deviations observed in RMSD and Rg values. Furthermore, these mutations were correlated with a decline in the organization of secondary structural elements. The mutations in PHB2_MT1 and PHB2_MT2 resulted in formation a less stable prohibitin complex. Thus, PHB1 and PHB2 may act as molecular target or novel biomarkers for therapeutic intervention in numerous forms of malignancies.
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Affiliation(s)
- Susmita Khatua
- Amity Institute of Biotechnology, Amity University, Kolkata, India
| | - Alankar Roy
- Amity Institute of Biotechnology, Amity University, Kolkata, India
| | - Pritha Sen
- Amity Institute of Biotechnology, Amity University, Kolkata, India
| | - Sujay Ray
- Amity Institute of Biotechnology, Amity University, Kolkata, India.
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11
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Najem A, Krayem M, Sabbah S, Pesetti M, Journe F, Awada A, Désaubry L, Ghanem GE. Targeting Prohibitins to Inhibit Melanoma Growth and Overcome Resistance to Targeted Therapies. Cells 2023; 12:1855. [PMID: 37508519 PMCID: PMC10378173 DOI: 10.3390/cells12141855] [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: 05/10/2023] [Revised: 06/19/2023] [Accepted: 07/07/2023] [Indexed: 07/30/2023] Open
Abstract
Despite important advances in the treatment of metastatic melanoma with the development of MAPK-targeted agents and immune checkpoint inhibitors, the majority of patients either do not respond to therapies or develop acquired resistance. Furthermore, there is no effective targeted therapy currently available for BRAF wild-type melanomas (approximately 50% of cutaneous melanoma). Thus, there is a compelling need for new efficient targeted therapies. Prohibitins (PHBs) are overexpressed in several types of cancers and implicated in the regulation of signaling networks that promote cell invasion and resistance to cell apoptosis. Herein, we show that PHBs are highly expressed in melanoma and are associated with not only poor survival but also with resistance to BRAFi/MEKi. We designed and identified novel specific PHB inhibitors that can inhibit melanoma cell growth in 3D spheroid models and a large panel of representative cell lines with different molecular subtypes, including those with intrinsic and acquired resistance to MAPKi, by significantly moderating both MAPK (CRAF-ERK axis) and PI3K/AKT pathways, and inducing apoptosis through the mitochondrial pathway and up-regulation of p53. In addition, autophagy inhibition enhances the antitumor efficacy of these PHB ligands. More important, these ligands can act in synergy with MAPKi to more efficiently inhibit cell growth and overcome drug resistance in both BRAF wild-type and mutant melanoma. In conclusion, targeting PHBs represents a very promising therapeutic strategy in melanoma, regardless of mutational status.
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Affiliation(s)
- Ahmad Najem
- Laboratory of Clinical and Experimental Oncology (LOCE), Institut Jules Bordet, Université Libre de Bruxelles, 1000 Brussels, Belgium
| | - Mohammad Krayem
- Laboratory of Clinical and Experimental Oncology (LOCE), Institut Jules Bordet, Université Libre de Bruxelles, 1000 Brussels, Belgium
| | - Serena Sabbah
- Laboratory of Clinical and Experimental Oncology (LOCE), Institut Jules Bordet, Université Libre de Bruxelles, 1000 Brussels, Belgium
| | - Matilde Pesetti
- Laboratory of Clinical and Experimental Oncology (LOCE), Institut Jules Bordet, Université Libre de Bruxelles, 1000 Brussels, Belgium
| | - Fabrice Journe
- Laboratory of Clinical and Experimental Oncology (LOCE), Institut Jules Bordet, Université Libre de Bruxelles, 1000 Brussels, Belgium
| | - Ahmad Awada
- Laboratory of Clinical and Experimental Oncology (LOCE), Institut Jules Bordet, Université Libre de Bruxelles, 1000 Brussels, Belgium
- Department of Medical Oncology, Institut Jules Bordet, Université Libre de Bruxelles, 1070 Brussels, Belgium
| | - Laurent Désaubry
- Center of Research in Biomedicine of Strasbourg, Regenerative Nanomedicine (UMR 1260), INSERM, University of Strasbourg, 67000 Strasbourg, France
| | - Ghanem E Ghanem
- Laboratory of Clinical and Experimental Oncology (LOCE), Institut Jules Bordet, Université Libre de Bruxelles, 1000 Brussels, Belgium
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12
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Lagarde H, Lallias D, Patrice P, Dehaullon A, Prchal M, François Y, D'Ambrosio J, Segret E, Acin-Perez A, Cachelou F, Haffray P, Dupont-Nivet M, Phocas F. Genetic architecture of acute hyperthermia resistance in juvenile rainbow trout (Oncorhynchus mykiss) and genetic correlations with production traits. Genet Sel Evol 2023; 55:39. [PMID: 37308823 DOI: 10.1186/s12711-023-00811-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 05/11/2023] [Indexed: 06/14/2023] Open
Abstract
BACKGROUND Selective breeding is a promising solution to reduce the vulnerability of fish farms to heat waves, which are predicted to increase in intensity and frequency. However, limited information about the genetic architecture of acute hyperthermia resistance in fish is available. Two batches of sibs from a rainbow trout commercial line were produced: the first (N = 1382) was phenotyped for acute hyperthermia resistance at nine months of age and the second (N = 1506) was phenotyped for main production traits (growth, body length, muscle fat content and carcass yield) at 20 months of age. Fish were genotyped on a 57 K single nucleotide polymorphism (SNP) array and their genotypes were imputed to high-density based on the parent's genotypes from a 665 K SNP array. RESULTS The heritability estimate of resistance to acute hyperthermia was 0.29 ± 0.05, confirming the potential of selective breeding for this trait. Since genetic correlations of acute hyperthermia resistance with the main production traits near harvest age were all close to zero, selecting for acute hyperthermia resistance should not impact the main production traits, and vice-versa. A genome-wide association study revealed that resistance to acute hyperthermia is a highly polygenic trait, with six quantitative trait loci (QTL) detected, but explaining less than 5% of the genetic variance. Two of these QTL, including the most significant one, may explain differences in acute hyperthermia resistance across INRAE isogenic lines of rainbow trout. Differences in mean acute hyperthermia resistance phenotypes between homozygotes at the most significant SNP was 69% of the phenotypic standard deviation, showing promising potential for marker-assisted selection. We identified 89 candidate genes within the QTL regions, among which the most convincing functional candidates are dnajc7, hsp70b, nkiras2, cdk12, phb, fkbp10, ddx5, cygb1, enpp7, pdhx and acly. CONCLUSIONS This study provides valuable insight into the genetic architecture of acute hyperthermia resistance in juvenile rainbow trout. We show that the selection potential for this trait is substantial and selection for this trait should not be too detrimental to improvement of other traits of interest. Identified functional candidate genes provide new knowledge on the physiological mechanisms involved in acute hyperthermia resistance, such as protein chaperoning, oxidative stress response, homeostasis maintenance and cell survival.
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Affiliation(s)
- Henri Lagarde
- Université Paris-Saclay, INRAE, AgroParisTech, GABI, 78350, Jouy-en-Josas, France
| | - Delphine Lallias
- Université Paris-Saclay, INRAE, AgroParisTech, GABI, 78350, Jouy-en-Josas, France
| | - Pierre Patrice
- SYSAAF, French Poultry, Aquaculture and Insect Breeders Association, 35042, Rennes, France
| | - Audrey Dehaullon
- Université Paris-Saclay, INRAE, AgroParisTech, GABI, 78350, Jouy-en-Josas, France
| | - Martin Prchal
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in České Budějovice, Zátiší 728/II, 389 25, Vodňany, Czech Republic
| | - Yoannah François
- SYSAAF, French Poultry, Aquaculture and Insect Breeders Association, 35042, Rennes, France
| | - Jonathan D'Ambrosio
- SYSAAF, French Poultry, Aquaculture and Insect Breeders Association, 35042, Rennes, France
| | - Emilien Segret
- Viviers de Sarrance, Pisciculture Labedan, 64490, Sarrance, France
| | - Ana Acin-Perez
- Viviers de Sarrance, Pisciculture Labedan, 64490, Sarrance, France
| | | | - Pierrick Haffray
- SYSAAF, French Poultry, Aquaculture and Insect Breeders Association, 35042, Rennes, France
| | | | - Florence Phocas
- Université Paris-Saclay, INRAE, AgroParisTech, GABI, 78350, Jouy-en-Josas, France.
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13
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Liu J, Zhang R, Su T, Zhou Q, Gao L, He Z, Wang X, Zhao J, Xing Y, Sun F, Cai W, Wang X, Han J, Qin R, Désaubry L, Han B, Chen W. Targeting PHB1 to inhibit castration-resistant prostate cancer progression in vitro and in vivo. J Exp Clin Cancer Res 2023; 42:128. [PMID: 37210546 DOI: 10.1186/s13046-023-02695-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 05/01/2023] [Indexed: 05/22/2023] Open
Abstract
BACKGROUND Castration-resistant prostate cancer (CRPC) is currently the main challenge for prostate cancer (PCa) treatment, and there is an urgent need to find novel therapeutic targets and drugs. Prohibitin (PHB1) is a multifunctional chaperone/scaffold protein that is upregulated in various cancers and plays a pro-cancer role. FL3 is a synthetic flavagline drug that inhibits cancer cell proliferation by targeting PHB1. However, the biological functions of PHB1 in CRPC and the effect of FL3 on CRPC cells remain to be explored. METHODS Several public datasets were used to analyze the association between the expression level of PHB1 and PCa progression as well as outcome in PCa patients. The expression of PHB1 in human PCa specimens and PCa cell lines was examined by immunohistochemistry (IHC), qRT-PCR, and Western blot. The biological roles of PHB1 in castration resistance and underlying mechanisms were investigated by gain/loss-of-function analyses. Next, in vitro and in vivo experiments were conducted to investigate the anti-cancer effects of FL3 on CRPC cells as well as the underlying mechanisms. RESULTS PHB1 expression was significantly upregulated in CRPC and was associated with poor prognosis. PHB1 promoted castration resistance of PCa cells under androgen deprivation condition. PHB1 is an androgen receptor (AR) suppressive gene, and androgen deprivation promoted the PHB1 expression and its nucleus-cytoplasmic translocation. FL3, alone or combined with the second-generation anti-androgen Enzalutamide (ENZ), suppressed CRPC cells especially ENZ-sensitive CRPC cells both in vitro and in vivo. Mechanically, we demonstrated that FL3 promoted trafficking of PHB1 from plasma membrane and mitochondria to nucleus, which in turn inhibited AR signaling as well as MAPK signaling, yet promoted apoptosis in CRPC cells. CONCLUSION Our data indicated that PHB1 is aberrantly upregulated in CRPC and is involved in castration resistance, as well as providing a novel rational approach for treating ENZ-sensitive CRPC.
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Affiliation(s)
- Junmei Liu
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Ranran Zhang
- The Key Laboratory of Experimental Teratology, Ministry of Education and Department of Pathology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Tong Su
- The Key Laboratory of Experimental Teratology, Ministry of Education and Department of Pathology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Qianqian Zhou
- The Key Laboratory of Experimental Teratology, Ministry of Education and Department of Pathology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Lin Gao
- The Key Laboratory of Experimental Teratology, Ministry of Education and Department of Pathology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Zongyue He
- The Key Laboratory of Experimental Teratology, Ministry of Education and Department of Pathology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Xin Wang
- The Key Laboratory of Experimental Teratology, Ministry of Education and Department of Pathology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Jian Zhao
- Department of Thoracic Surgery, Qilu Hospital of Shandong University, Jinan, China
| | - Yuanxin Xing
- Research Center of Basic Medicine, Jinan Central Hospital, Shandong First Medical University, Jinan, China
| | - Feifei Sun
- The Key Laboratory of Experimental Teratology, Ministry of Education and Department of Pathology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Wenjie Cai
- The Key Laboratory of Experimental Teratology, Ministry of Education and Department of Pathology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Xinpei Wang
- The Key Laboratory of Experimental Teratology, Ministry of Education and Department of Pathology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Jingying Han
- School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Ruixi Qin
- Department of Pathology, Qilu Hospital of Shandong University, Jinan, China
| | - Laurent Désaubry
- INSERM, UMR 1260, Regenerative Nanomedicine, University of Strasbourg, FMTS (Fédération de Médecine Translationnelle de L'Université de Strasbourg), Strasbourg, France
| | - Bo Han
- The Key Laboratory of Experimental Teratology, Ministry of Education and Department of Pathology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China.
- Department of Pathology, Qilu Hospital of Shandong University, Jinan, China.
| | - Weiwen Chen
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China.
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Qi A, Lamont L, Liu E, Murray SD, Meng X, Yang S. Essential Protein PHB2 and Its Regulatory Mechanisms in Cancer. Cells 2023; 12:cells12081211. [PMID: 37190120 DOI: 10.3390/cells12081211] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 04/19/2023] [Accepted: 04/20/2023] [Indexed: 05/17/2023] Open
Abstract
Prohibitins (PHBs) are a highly conserved class of proteins and have an essential role in transcription, epigenetic regulation, nuclear signaling, mitochondrial structural integrity, cell division, and cellular membrane metabolism. Prohibitins form a heterodimeric complex, consisting of two proteins, prohibitin 1 (PHB1) and prohibitin 2 (PHB2). They have been discovered to have crucial roles in regulating cancer and other metabolic diseases, functioning both together and independently. As there have been many previously published reviews on PHB1, this review focuses on the lesser studied prohibitin, PHB2. The role of PHB2 in cancer is controversial. In most human cancers, overexpressed PHB2 enhances tumor progression, while in some cancers, it suppresses tumor progression. In this review, we focus on (1) the history, family, and structure of prohibitins, (2) the essential location-dependent functions of PHB2, (3) dysfunction in cancer, and (4) the promising modulators to target PHB2. At the end, we discuss future directions and the clinical significance of this common essential gene in cancer.
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Affiliation(s)
- Amanda Qi
- Department of Pathology, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA
| | - Lillie Lamont
- Department of Pathology, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA
| | - Evelyn Liu
- Department of Pathology, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA
| | - Sarina D Murray
- Department of Pathology, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA
| | - Xiangbing Meng
- Department of Pathology, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA
| | - Shujie Yang
- Department of Pathology, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA
- Holden Comprehensive Cancer Center, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA
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15
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Li C, Zhang W, Shi L, Lu Y, Ye J, Liu X. Prohibitin mediates the cellular invasion of spring viremia of the carp virus. FISH & SHELLFISH IMMUNOLOGY 2023; 135:108689. [PMID: 36931480 DOI: 10.1016/j.fsi.2023.108689] [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: 02/03/2023] [Revised: 03/05/2023] [Accepted: 03/13/2023] [Indexed: 06/18/2023]
Abstract
Spring viremia of carp virus (SVCV) is strongly contagious and pathogenic to common carp and cyprinoid species. However, knowledge of how SVCV enters host cells is still inadequate. In this study, mass spectrometry (MS) was incorporated with tandem affinity purification (TAP) to identify host proteins that interact with SVCV glycoprotein, the main attachment protein of SVCV. Specifically, prohibitin (PHB) received the utmost attention from all the candidate proteins, and its interaction with the SVCV-G protein was confirmed by immunoprecipitation and immunofluorescence assays. Treatment with PHB-specific inhibitors or knockdown of the expression of PHB by siRNAs resulted in a marked reduction in binding and entry of SVCV on host cells, while overexpression of PHB increased SVCV attachment and invasion. Furthermore, binding of SVCV to ZF4 and FHM cells was inhibited by pre-incubating the virus with recombinant PHB protein (rPHB) or blocking the cell surface PHB with its polyclonal antibodies. In addition, overexpression of PHB on SVCV-nonpermissive Grouper spleen cells (GSs) conferred susceptibility to SVCV infection. In vivo, treatment of rPHB could significantly inhibit SVCV propagation within zebrafish and benefit the survival rate of SVCV-infected zebrafish. These results demonstrate that PHB plays a crucial role in both the attachment and entry stages of SVCV infection.
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Affiliation(s)
- Chen Li
- State Key Laboratory of Agricultural Microbiology, College of Fisheries, Huazhong Agricultural University, Wuhan, Hubei, China; Hubei Engineering Technology Research Center for Aquatic Animal Diseases Control and Prevention, Wuhan, Hubei, China
| | - Wenyan Zhang
- State Key Laboratory of Agricultural Microbiology, College of Fisheries, Huazhong Agricultural University, Wuhan, Hubei, China; Hubei Engineering Technology Research Center for Aquatic Animal Diseases Control and Prevention, Wuhan, Hubei, China
| | - Lin Shi
- State Key Laboratory of Agricultural Microbiology, College of Fisheries, Huazhong Agricultural University, Wuhan, Hubei, China; Hubei Engineering Technology Research Center for Aquatic Animal Diseases Control and Prevention, Wuhan, Hubei, China
| | - Yuanan Lu
- Department of Public Health Sciences, The University of Hawaii at Manoa, Honolulu, HI, USA
| | - Jing Ye
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Xueqin Liu
- State Key Laboratory of Agricultural Microbiology, College of Fisheries, Huazhong Agricultural University, Wuhan, Hubei, China; Hubei Engineering Technology Research Center for Aquatic Animal Diseases Control and Prevention, Wuhan, Hubei, China.
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16
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Vila È, Pinacho R, Prades R, Tarragó T, Castro E, Munarriz-Cuezva E, Meana JJ, Eugui-Anta A, Roldan M, Vera-Montecinos A, Ramos B. Inhibition of Prolyl Oligopeptidase Restores Prohibitin 2 Levels in Psychosis Models: Relationship to Cognitive Deficits in Schizophrenia. Int J Mol Sci 2023; 24:6016. [PMID: 37046989 PMCID: PMC10093989 DOI: 10.3390/ijms24076016] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 03/10/2023] [Accepted: 03/16/2023] [Indexed: 04/14/2023] Open
Abstract
Cognitive impairment represents one of the core features of schizophrenia. Prolyl Oligopeptidase (POP) inhibition is an emerging strategy for compensating cognitive deficits in hypoglutamatergic states such as schizophrenia, although little is known about how POP inhibitors exert their pharmacological activity. The mitochondrial and nuclear protein Prohibitin 2 (PHB2) could be dysregulated in schizophrenia. However, altered PHB2 levels in schizophrenia linked to N-methyl-D-aspartate receptor (NMDAR) activity and cognitive deficits are still unknown. To shed light on this, we measured the PHB2 levels by immunoblot in a postmortem dorsolateral prefrontal cortex (DLPFC) of schizophrenia subjects, in the frontal pole of mice treated with the NMDAR antagonists phencyclidine and dizocilpine, and in rat cortical astrocytes and neurons treated with dizocilpine. Mice and cells were treated in combination with the POP inhibitor IPR19. The PHB2 levels were also analyzed by immunocytochemistry in rat neurons. The PHB2 levels increased in DLPFC in cases of chronic schizophrenia and were associated with cognitive impairments. NMDAR antagonists increased PHB2 levels in the frontal pole of mice and in rat astrocytes and neurons. High levels of PHB2 were found in the nucleus and cytoplasm of neurons upon NMDAR inhibition. IPR19 restored PHB2 levels in the acute NMDAR inhibition. These results show that IPR19 restores the upregulation of PHB2 in an acute NMDAR hypoactivity stage suggesting that the modulation of PHB2 could compensate NMDAR-dependent cognitive impairments in schizophrenia.
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Affiliation(s)
- Èlia Vila
- Parc Sanitari Sant Joan de Déu, Institut de Recerca Sant Joan de Déu, Dr. Antoni Pujadas, 42, 08830 Sant Boi de Llobregat, Spain
| | - Raquel Pinacho
- Parc Sanitari Sant Joan de Déu, Institut de Recerca Sant Joan de Déu, Dr. Antoni Pujadas, 42, 08830 Sant Boi de Llobregat, Spain
| | - Roger Prades
- Iproteos S.L., Baldiri i Reixac, 10, 08028 Barcelona, Spain
| | - Teresa Tarragó
- Iproteos S.L., Baldiri i Reixac, 10, 08028 Barcelona, Spain
- Institute for Research in Biomedicine (IRB Barcelona), Baldiri i Reixac, 10, 08028 Barcelona, Spain
| | - Elena Castro
- Departamento de Fisiología y Farmacología, Universidad de Cantabria, Avda. Cardenal Herrera Oria s/n, 39011 Santander, Spain
- Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM (Biomedical Network Research Center of Mental Health), Institute of Health Carlos III, 28029 Madrid, Spain
| | - Eva Munarriz-Cuezva
- Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM (Biomedical Network Research Center of Mental Health), Institute of Health Carlos III, 28029 Madrid, Spain
- Department of Pharmacology, University of the Basque Country UPV/EHU, 48940 Leioa, Spain
- Biocruces Bizkaia Health Research Institute, 48903 Barakaldo, Spain
| | - J. Javier Meana
- Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM (Biomedical Network Research Center of Mental Health), Institute of Health Carlos III, 28029 Madrid, Spain
- Department of Pharmacology, University of the Basque Country UPV/EHU, 48940 Leioa, Spain
- Biocruces Bizkaia Health Research Institute, 48903 Barakaldo, Spain
| | - Ania Eugui-Anta
- Parc Sanitari Sant Joan de Déu, Institut de Recerca Sant Joan de Déu, Dr. Antoni Pujadas, 42, 08830 Sant Boi de Llobregat, Spain
| | - Mònica Roldan
- Unitat de Microscòpia Confocal i Imatge Cel·lular, Servei de Medicina Genètica i Molecular, Institut Pediàtric de Malaties Rares (IPER), Hospital Sant Joan de Déu, 08950 Esplugues de Llobregat, Spain
| | - América Vera-Montecinos
- Parc Sanitari Sant Joan de Déu, Institut de Recerca Sant Joan de Déu, Dr. Antoni Pujadas, 42, 08830 Sant Boi de Llobregat, Spain
| | - Belén Ramos
- Parc Sanitari Sant Joan de Déu, Institut de Recerca Sant Joan de Déu, Dr. Antoni Pujadas, 42, 08830 Sant Boi de Llobregat, Spain
- Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM (Biomedical Network Research Center of Mental Health), Institute of Health Carlos III, 28029 Madrid, Spain
- Departament de Bioquímica i Biologia Molecular, Facultat de Medicina, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
- Faculty of Medicine, University of Vic-Central University of Catalonia, 08500 Vic, Spain
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17
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Liu G, Wang Y, Zheng Y, Lv J, Li Y, Liu N, Gao H, Ran H, Tang H, Jiang Z. PHB2 binds to ERβ to induce the autophagy of porcine ovarian granulosa cells through mTOR phosphorylation. Theriogenology 2023; 198:114-122. [PMID: 36580849 DOI: 10.1016/j.theriogenology.2022.12.031] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 12/15/2022] [Accepted: 12/22/2022] [Indexed: 12/25/2022]
Abstract
Autophagy of ovarian granulosa cells is one of the reasons which results in follicular atresia. PHB2 regulates many fundamental biological processes and is pivotal in the mitophagy of cells; nevertheless, the autophagy in the porcine ovary and how PHB2 regulates the follicular cells are unknown. Here we report a protein complex that induces autophagy in porcine granulosa cells (PGCs) through the direct interaction of ERβ and PHB2. In this study, we aimed to elucidate the autophagy and the role of PHB2 in porcine ovaries using porcine primary ovarian granulosa cells (PGCs). The results showed that PHB2 induces PGCs autophagy because of the change in related genes and protein expression levels. In addition, the results of Co-IP and the distribution of the combination of PHB2 and ERβ showed that this complex is also indicated as an essential role of PHB2 in PGCs autophagy. Based on our results, it can be concluded that PHB2 combined with ERβ induces PGCs autophagy by targeting the mTOR pathway. This study pinpoints a novel regulatory mechanism of autophagy and demonstrates the existence of a protein complex that may underlie its roles in autophagy in PGCs.
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Affiliation(s)
- Guangyu Liu
- College of Animal Science and Technology, Key Laboratory of Animal Genetic, Breeding and Reproduction in Shaanxi Province, Northwestern A&F University, Yangling, Shaanxi, 712100, China
| | - Yifan Wang
- College of Animal Science and Technology, Key Laboratory of Animal Genetic, Breeding and Reproduction in Shaanxi Province, Northwestern A&F University, Yangling, Shaanxi, 712100, China
| | - Yuxin Zheng
- College of Animal Science and Technology, Key Laboratory of Animal Genetic, Breeding and Reproduction in Shaanxi Province, Northwestern A&F University, Yangling, Shaanxi, 712100, China
| | - Jing Lv
- College of Animal Science and Technology, Key Laboratory of Animal Genetic, Breeding and Reproduction in Shaanxi Province, Northwestern A&F University, Yangling, Shaanxi, 712100, China
| | - Yuanyou Li
- College of Animal Science and Technology, Key Laboratory of Animal Genetic, Breeding and Reproduction in Shaanxi Province, Northwestern A&F University, Yangling, Shaanxi, 712100, China
| | - Ning Liu
- College of Animal Science and Technology, Key Laboratory of Animal Genetic, Breeding and Reproduction in Shaanxi Province, Northwestern A&F University, Yangling, Shaanxi, 712100, China
| | - Huimin Gao
- College of Animal Science and Technology, Key Laboratory of Animal Genetic, Breeding and Reproduction in Shaanxi Province, Northwestern A&F University, Yangling, Shaanxi, 712100, China
| | - Haohan Ran
- College of Animal Science and Animal Medicine, Tianjin Agricultural University, Tianjin, China
| | - Hong Tang
- State Key Laboratory for Sheep Genetic Improvement and Healthy Production/Institute of Animal Husbandry and Veterinary Medicine, Xinjiang Academy of Agricultural and Reclamation Sciences, Shihezi, 832000, China.
| | - Zhongliang Jiang
- College of Animal Science and Technology, Key Laboratory of Animal Genetic, Breeding and Reproduction in Shaanxi Province, Northwestern A&F University, Yangling, Shaanxi, 712100, China.
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18
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Araveti PB, Kar PP, Kuriakose A, Sanju A, Kumar KA, Srivastava A. Identification of a Novel Interaction between Theileria Prohibitin ( TaPHB-1) and Bovine RuvB-Like AAA ATPase 1. Microbiol Spectr 2023; 11:e0250222. [PMID: 36651733 PMCID: PMC9927103 DOI: 10.1128/spectrum.02502-22] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Theileriosis is a tick-borne disease caused by Theileria annulata, an intracellular parasite that belongs to the phylum Apicomplexa. The infective forms of the parasite to cattle are sporozoites that are introduced into the host when the infected ticks take a blood meal. The sporozoites selectively invade bovine B cells, macrophages, or monocytes, leading to their cellular transformation. The parasite factors involved in the host cell transformation are not well explored. In pursuit of this, we revisited the probable secretome of the parasite and, following a stringent downscaling criterion, have identified Theileria prohibitin (TaPHB-1) as one of factors secreted into the host cells. Interestingly, in infected cells, TaPHB-1 localized both on the parasite surface and in the host cytoplasm, and independent approaches such as coimmunoprecipitation, yeast two-hybrid screening (Y2H), and liquid chromatography-tandem mass spectrometry (LC-MS/MS) confirmed RuvB-like AAA ATPase 1 (RUVBL-1) as one of its interacting partners. Further, the T. annulata infection does not affect the localization of bovine prohibitin. Mitigating the expression of bovine RUVBL-1 precluded the translocation of TaPHB-1 in the host cell cytoplasm without affecting the host cell viability. Taken together, we report for the first time a unique interaction of TaPHB-1 with bovine RUVBL-1 that is likely needed to cause cancer-like hallmarks during theileriosis. IMPORTANCE Theileria annulata is an apicomplexan parasite that causes tropical theileriosis in cattle. It is the only eukaryotic pathogen able to cause cellular transformation of host cells yielding a cancer-like phenotype. The parasite factors responsible for the transformation of the host cell are largely unknown. This study demonstrates for the first time the partial role of Theileria prohibitin (TaPHB-1) in maintaining the transformed state of the host cell and its interaction with RuvB-like AAA ATPase 1 (RUVBL-1) in a T. annulata-infected bovine cell line. Interestingly, the knockdown of bovine RUVBL-1 rendered the parasites metabolically inactive, implying that the identified interaction is critical for parasite survival. This study contributes to our understanding the Theileria-host interactions and offers scope for novel therapeutic interventions to control theileriosis.
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Affiliation(s)
- Prasanna Babu Araveti
- National Institute of Animal Biotechnology (NIAB), Hyderabad, Telangana, India
- Graduate Studies, Regional Centre for Biotechnology (RCB), Faridabad, Haryana, India
| | - Prajna Parimita Kar
- National Institute of Animal Biotechnology (NIAB), Hyderabad, Telangana, India
- Graduate Studies, Regional Centre for Biotechnology (RCB), Faridabad, Haryana, India
| | - Akshay Kuriakose
- National Institute of Animal Biotechnology (NIAB), Hyderabad, Telangana, India
| | - Achintya Sanju
- National Institute of Animal Biotechnology (NIAB), Hyderabad, Telangana, India
| | - Kota Arun Kumar
- Department of Animal Biology, School of Life Science, University of Hyderabad, Hyderabad, Telangana, India
| | - Anand Srivastava
- National Institute of Animal Biotechnology (NIAB), Hyderabad, Telangana, India
- Regional Centre for Biotechnology (RCB), Faridabad, Haryana, India
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19
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Ahmed D, Al-Daraawi M, Cassol E. Innate sensing and cellular metabolism: role in fine tuning antiviral immune responses. J Leukoc Biol 2023; 113:164-190. [PMID: 36822175 DOI: 10.1093/jleuko/qiac011] [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: 06/12/2022] [Indexed: 01/19/2023] Open
Abstract
Several studies over the last decade have identified intimate links between cellular metabolism and macrophage function. Metabolism has been shown to both drive and regulate macrophage function by producing bioenergetic and biosynthetic precursors as well as metabolites (and other bioactive molecules) that regulate gene expression and signal transduction. Many studies have focused on lipopolysaccharide-induced reprogramming, assuming that it is representative of most inflammatory responses. However, emerging evidence suggests that diverse pathogen-associated molecular patterns (PAMPs) are associated with unique metabolic profiles, which may drive pathogen specific immune responses. Further, these metabolic pathways and processes may act as a rheostat to regulate the magnitude of an inflammatory response based on the biochemical features of the local microenvironment. In this review, we will discuss recent work examining the relationship between cellular metabolism and macrophage responses to viral PAMPs and describe how these processes differ from lipopolysaccharide-associated responses. We will also discuss how an improved understanding of the specificity of these processes may offer new insights to fine-tune macrophage function during viral infections or when using viral PAMPs as therapeutics.
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Affiliation(s)
- Duale Ahmed
- Department of Health Sciences, Carleton University, Ottawa, Ontario, Canada.,Department of Biology, Carleton University, Ottawa, Ontario, Canada
| | - Malak Al-Daraawi
- Department of Health Sciences, Carleton University, Ottawa, Ontario, Canada
| | - Edana Cassol
- Department of Health Sciences, Carleton University, Ottawa, Ontario, Canada.,Centre for Infection, Immunity and Inflammation, University of Ottawa, Ottawa, Ontario, Canada
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20
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Matsumura K, Takaki S, Kirikae T. Mycobacterial protein PE_PGRS30 induces macrophage apoptosis through prohibitin 2 mitochondrial function interference. Front Microbiol 2023; 14:1080369. [PMID: 36778852 PMCID: PMC9911437 DOI: 10.3389/fmicb.2023.1080369] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 01/10/2023] [Indexed: 01/28/2023] Open
Abstract
PE_PGRS30 belongs to the PE_PGRS protein family and is characterized by a conserved Pro-Glu (PE) domain and a typically polymorphic GC-rich sequence (PGRS) domain. PE_PGRS30 is a virulence factor of Mycobacterium tuberculosis that induces macrophage cell death. We found that RAW264.7 cells and murine alveolar macrophages underwent apoptosis in response to PE_PGRS30. The host protein prohibitin 2 (PHB2) was identified as a target molecule. PE_PGRS30 and PHB2 interact via the PGRS domain and mitochondrial targeting sequence, respectively. PHB2 overexpression reduced macrophage apoptosis in response to PE_PGRS30. PE_PGRS30 co-localized with PHB2, not in mitochondria, but in lysosomes. The maintenance of mitochondrial structure by PHB2 was impaired in response to the PGRS domain. These results indicated that PE_PGRS30 reduces PHB2 in mitochondria, resulting in mitochondrial dysfunction and cellular apoptosis.
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Affiliation(s)
- Kazunori Matsumura
- Department of Immune Regulation, Research Institute, National Center for Global Health and Medicine, Chiba, Japan
| | - Satoshi Takaki
- Department of Immune Regulation, Research Institute, National Center for Global Health and Medicine, Chiba, Japan
| | - Teruo Kirikae
- Graduate School of Medicine, Juntendo University, Tokyo, Japan,*Correspondence: Teruo Kirikae,
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21
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Makinde E, Ma L, Mellick GD, Feng Y. Mitochondrial Modulators: The Defender. Biomolecules 2023; 13:biom13020226. [PMID: 36830595 PMCID: PMC9953029 DOI: 10.3390/biom13020226] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 01/19/2023] [Accepted: 01/22/2023] [Indexed: 01/27/2023] Open
Abstract
Mitochondria are widely considered the "power hub" of the cell because of their pivotal roles in energy metabolism and oxidative phosphorylation. However, beyond the production of ATP, which is the major source of chemical energy supply in eukaryotes, mitochondria are also central to calcium homeostasis, reactive oxygen species (ROS) balance, and cell apoptosis. The mitochondria also perform crucial multifaceted roles in biosynthetic pathways, serving as an important source of building blocks for the biosynthesis of fatty acid, cholesterol, amino acid, glucose, and heme. Since mitochondria play multiple vital roles in the cell, it is not surprising that disruption of mitochondrial function has been linked to a myriad of diseases, including neurodegenerative diseases, cancer, and metabolic disorders. In this review, we discuss the key physiological and pathological functions of mitochondria and present bioactive compounds with protective effects on the mitochondria and their mechanisms of action. We highlight promising compounds and existing difficulties limiting the therapeutic use of these compounds and potential solutions. We also provide insights and perspectives into future research windows on mitochondrial modulators.
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22
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Della Malva A, Santillo A, Priolo A, Marino R, Ciliberti MG, Sevi A, Albenzio M. Effect of hazelnut skin by-product supplementation in lambs' diets: Implications on plasma and muscle proteomes and first insights on the underlying mechanisms. J Proteomics 2023; 271:104757. [PMID: 36273509 DOI: 10.1016/j.jprot.2022.104757] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 10/14/2022] [Accepted: 10/14/2022] [Indexed: 11/27/2022]
Abstract
This study aimed to evaluate the effect of hazelnut skin by-product supplementation on lamb meat quality characteristics and plasma and muscle proteomes. Twenty-two Valle del Belice male lambs were divided into two experimental groups: control (C), fed a maize-barley diet and hazelnut (H), fed hazelnut skin by-product as maize partial replacer in the concentrate diet. The meat of lambs fed hazelnut skin showed greater values of lightness, redness, yellowness, and chroma color parameters together with the highest myofibril fragmentation index. Two-dimensional electrophoresis and mass spectrometry applied on plasma proteome identified 20 protein spots corresponding to 18 unique gene names to be differently expressed due to hazelnut skin by-product substitution. For the early post-mortem muscle, 23 protein spots (42 unique gene names) were significantly up-regulated due to hazelnut skin by-product supplementation. Four proteins these being APOA1, PHB, ACTG1 and ALB, were found to be common to the two proteomes suggesting that these proteins could be candidate biomarkers to monitor in vita and post-mortem lamb meat quality traits. This study evidenced the main mechanisms involved in the supplementation of hazelnut skin by-product in lambs' diet and confirmed the possibility of using plasma proteome as a non-invasive way to predict lamb meat quality. SIGNIFICANCE: Maximizing the use of agro-industrial by-products as replacers of traditional feedstuff for improving animal products is one of the important challenges to preserving natural resources and guaranteeing environmental sustainability. Hazelnut (Corylus avellana L.) skin, obtained as a results of hazelnut roasting, represents a valuable by-products due to its high content in unsaturated fatty acids, tannins, and vitamins. Thus, including hazelnut skin by-product in small ruminant nutrition could reduce the costs of animal feedings for farmers as well as improve meat nutritional and sensorial characteristics. Additionally, monitoring the meat quality characteristics with fast, accurate, and non-invasive tools to find, before slaughter, animals with desired quality characteristics is of growing interest in the last years. In this regard, the objectives of this study were to assess i) the effect of hazelnut skin supplementation on lamb meat quality characteristics and plasma and muscle proteomes, and ii) whether analyzing plasma proteome by using a gel-based proteomic approach could effectively offer a more readily available option for determining lamb meat quality. Taken together, the proteomic approach applied to plasma and muscle proteomes, allowed us to reveal the pathways and the potential candidate plasma biomarkers to predict lamb meat production in the pre-slaughter phase.
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Affiliation(s)
- Antonella Della Malva
- Department of Agriculture, Food, Natural Resources and Engineering (DAFNE), University of Foggia, Via Napoli 25, 71121 Foggia, Italy.
| | - Antonella Santillo
- Department of Agriculture, Food, Natural Resources and Engineering (DAFNE), University of Foggia, Via Napoli 25, 71121 Foggia, Italy
| | - Alessandro Priolo
- Department of Agriculture, Food and Environment (Di3A), University of Catania, Via Valdisavoia 5, 95123 Catania, Italy
| | - Rosaria Marino
- Department of Agriculture, Food, Natural Resources and Engineering (DAFNE), University of Foggia, Via Napoli 25, 71121 Foggia, Italy
| | - Maria Giovanna Ciliberti
- Department of Agriculture, Food, Natural Resources and Engineering (DAFNE), University of Foggia, Via Napoli 25, 71121 Foggia, Italy
| | - Agostino Sevi
- Department of Agriculture, Food, Natural Resources and Engineering (DAFNE), University of Foggia, Via Napoli 25, 71121 Foggia, Italy
| | - Marzia Albenzio
- Department of Agriculture, Food, Natural Resources and Engineering (DAFNE), University of Foggia, Via Napoli 25, 71121 Foggia, Italy
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23
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Fernandez-Abascal J, Artal-Sanz M. Prohibitins in neurodegeneration and mitochondrial homeostasis. FRONTIERS IN AGING 2022; 3:1043300. [PMID: 36404989 PMCID: PMC9674034 DOI: 10.3389/fragi.2022.1043300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 10/20/2022] [Indexed: 11/06/2022]
Abstract
The incidence of age-related neurodegenerative disorders has risen with the increase of life expectancy. Unfortunately, the diagnosis of such disorders is in most cases only possible when the neurodegeneration status is already advanced, and symptoms are evident. Although age-related neurodegeneration is a common phenomenon in living animals, the cellular and molecular mechanisms behind remain poorly understood. Pathways leading to neurodegeneration usually diverge from a common starting point, mitochondrial stress, which can serve as a potential target for early diagnosis and treatments. Interestingly, the evolutionarily conserved mitochondrial prohibitin (PHB) complex is a key regulator of ageing and metabolism that has been associated with neurodegenerative diseases. However, its role in neurodegeneration is still not well characterized. The PHB complex shows protective or toxic effects in different genetic and physiological contexts, while mitochondrial and cellular stress promote both up and downregulation of PHB expression. With this review we aim to shed light into the complex world of PHB’s function in neurodegeneration by putting together the latest advances in neurodegeneration and mitochondrial homeostasis associated with PHB. A better understanding of the role of PHB in neurodegeneration will add knowledge to neuron deterioration during ageing and help to identify early molecular markers of mitochondrial stress. This review will deepen our understanding of age-related neurodegeneration and provide questions to be addressed, relevant to human health and to improve the life quality of the elderly.
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Affiliation(s)
- Jesus Fernandez-Abascal
- Andalusian Centre for Developmental Biology (CABD), CSIC-Universidad Pablo de Olavide-Junta de Andalucía, Sevilla, Spain
- Department of Molecular Biology and Biochemical Engineering, Universidad Pablo de Olavide, Seville, Spain
- *Correspondence: Jesus Fernandez-Abascal, ; Marta Artal-Sanz,
| | - Marta Artal-Sanz
- Andalusian Centre for Developmental Biology (CABD), CSIC-Universidad Pablo de Olavide-Junta de Andalucía, Sevilla, Spain
- Department of Molecular Biology and Biochemical Engineering, Universidad Pablo de Olavide, Seville, Spain
- *Correspondence: Jesus Fernandez-Abascal, ; Marta Artal-Sanz,
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24
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Jia Y, Mao C, Ma Z, Huang J, Li W, Ma X, Zhang S, Li M, Yu F, Sun Y, Chen J, Feng J, Zhou Y, Xu Q, Zhao L, Fu Y, Kong W. PHB2 Maintains the Contractile Phenotype of VSMCs by Counteracting PKM2 Splicing. Circ Res 2022; 131:807-824. [PMID: 36200440 DOI: 10.1161/circresaha.122.321005] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
BACKGROUND Phenotypic transition of vascular smooth muscle cells (VSMCs) accounts for the pathogenesis of a variety of vascular diseases during the early stage. Recent studies indicate the metabolic reprogramming may be involved in VSMC phenotypic transition. However, the definite molecules that link energy metabolism to distinct VSMC phenotype remain elusive. METHODS A carotid artery injury model was used to study postinjury neointima formation as well as VSMC phenotypic transition in vivo. RNA-seq analysis, cell migration assay, collagen gel contraction assay, wire myography assay, immunoblotting, protein interactome analysis, co-immunoprecipitation, and mammalian 2-hybrid assay were performed to clarify the phenotype and elucidate the molecular mechanisms. RESULTS We collected cell energy-regulating genes by using Gene Ontology annotation and applied RNA-Seq analysis of transforming growth factor-β or platelet-derived growth factor BB stimulated VSMCs. Six candidate genes were overlapped from energy metabolism-related genes and genes reciprocally upregulated by transforming growth factor-β and downregulated by platelet-derived growth factor BB. Among them, prohibitin 2 has been reported to regulate mitochondrial oxidative phosphorylation. Indeed, prohibitin 2-deficient VSMCs lost the contractile phenotype as evidenced by reduced contractile proteins. Consistently, Phb2SMCKO mice were more susceptible to postinjury VSMC proliferation and neointima formation compared with Phb2flox/flox mice. Further protein interactome analysis, co-immunoprecipitation, and mammalian 2-hybrid assay revealed that prohibitin 2, through its C-terminus, directly interacts with hnRNPA1, a key modulator of pyruvate kinase M1/2 (PKM) mRNA splicing that promotes PKM2 expression and glycolysis. Prohibitin 2 deficiency facilitated PKM1/2 mRNA splicing and reversion from PKM1 to PKM2, and enhanced glycolysis in VSMCs. Blocking prohibitin 2-hnRNPA1 interaction resulted in increased PKM2 expression, enhanced glycolysis, repressed contractile marker genes expression in VSMCs, as well as aggravated postinjury neointima formation in vivo. CONCLUSIONS Prohibitin 2 maintains VSMC contractile phenotype by interacting with hnRNPA1 to counteract hnRNPA1-mediated PKM alternative splicing and glucose metabolic reprogramming.
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Affiliation(s)
- Yiting Jia
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, P. R. China (Y.J., C.M., Z.M., J.H., W.L., X.M., S.Z., M.L., F.Y., J.F., Y.Z., Y.F., W.K.)
| | - Chenfeng Mao
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, P. R. China (Y.J., C.M., Z.M., J.H., W.L., X.M., S.Z., M.L., F.Y., J.F., Y.Z., Y.F., W.K.).,Beijing Institute of Biotechnology, Beijing, P. R. China (C.M.)
| | - Zihan Ma
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, P. R. China (Y.J., C.M., Z.M., J.H., W.L., X.M., S.Z., M.L., F.Y., J.F., Y.Z., Y.F., W.K.)
| | - Jiaqi Huang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, P. R. China (Y.J., C.M., Z.M., J.H., W.L., X.M., S.Z., M.L., F.Y., J.F., Y.Z., Y.F., W.K.)
| | - Wenqiang Li
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, P. R. China (Y.J., C.M., Z.M., J.H., W.L., X.M., S.Z., M.L., F.Y., J.F., Y.Z., Y.F., W.K.)
| | - Xiaolong Ma
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, P. R. China (Y.J., C.M., Z.M., J.H., W.L., X.M., S.Z., M.L., F.Y., J.F., Y.Z., Y.F., W.K.)
| | - Siting Zhang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, P. R. China (Y.J., C.M., Z.M., J.H., W.L., X.M., S.Z., M.L., F.Y., J.F., Y.Z., Y.F., W.K.)
| | - Meihong Li
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, P. R. China (Y.J., C.M., Z.M., J.H., W.L., X.M., S.Z., M.L., F.Y., J.F., Y.Z., Y.F., W.K.)
| | - Fang Yu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, P. R. China (Y.J., C.M., Z.M., J.H., W.L., X.M., S.Z., M.L., F.Y., J.F., Y.Z., Y.F., W.K.)
| | - Yingying Sun
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China (Y.S., J.C.)
| | - Jingzhou Chen
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China (Y.S., J.C.)
| | - Juan Feng
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, P. R. China (Y.J., C.M., Z.M., J.H., W.L., X.M., S.Z., M.L., F.Y., J.F., Y.Z., Y.F., W.K.)
| | - Yuan Zhou
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, P. R. China (Y.J., C.M., Z.M., J.H., W.L., X.M., S.Z., M.L., F.Y., J.F., Y.Z., Y.F., W.K.)
| | - Qingbo Xu
- Cardiovascular Division, Kings College London BHF Centre, London SE5 9NU, UK (Q.X.).,Department of Cardiology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, P. R. China (Q.X.)
| | - Ling Zhao
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, P. R. China (L.Z.)
| | - Yi Fu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, P. R. China (Y.J., C.M., Z.M., J.H., W.L., X.M., S.Z., M.L., F.Y., J.F., Y.Z., Y.F., W.K.)
| | - Wei Kong
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, P. R. China (Y.J., C.M., Z.M., J.H., W.L., X.M., S.Z., M.L., F.Y., J.F., Y.Z., Y.F., W.K.)
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Prohibitins: A Key Link between Mitochondria and Nervous System Diseases. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:7494863. [PMID: 35847581 PMCID: PMC9286927 DOI: 10.1155/2022/7494863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 06/21/2022] [Indexed: 12/02/2022]
Abstract
Prohibitins (PHBs) are conserved proteins in eukaryotic cells, which are mainly located in the inner mitochondrial membrane (IMM), cell nucleus, and cell membrane. PHBs play crucial roles in various cellular functions, including the cell cycle regulation, tumor suppression, immunoglobulin M receptor binding, and aging. In addition, recent in vitro and in vivo studies have revealed that PHBs are important in nervous system diseases. PHBs can prevent apoptosis, inflammation, mitochondrial dysfunction, and autophagy in neurological disorders through different molecules and pathways, such as OPA-1, PINK1/Parkin, IL6/STAT3, Tau, NO, LC3, and TDP43. Therefore, PHBs show great promise in the protection of neurological disorders. This review summarizes the relevant studies on the relationship between PHBs and neurological disorders and provides an update on the molecular mechanisms of PHBs in nervous system diseases.
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Studies on the antiviral activity of chebulinic acid against dengue and chikungunya viruses and in silico investigation of its mechanism of inhibition. Sci Rep 2022; 12:10397. [PMID: 35729191 PMCID: PMC9213501 DOI: 10.1038/s41598-022-13923-6] [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: 10/19/2021] [Accepted: 05/30/2022] [Indexed: 11/08/2022] Open
Abstract
Chebulinic acid (CA), originally isolated from the flower extract of the plant Terminalia chebula, has been shown to inhibit infection of herpes simplex virus-2 (HSV-2), suggestively by inhibiting the host entry step of viral infection. Like HSV-2, the dengue virus (DENV) and chikungunya virus (CHIKV) also use receptor glycosaminoglycans (GAG) to gain host entry, therefore, the activity of CA was tested against these viruses. Co-treatment of 8 µM CA with DENV-2 caused 2 log decrease in the virus titer (4.0 log10FFU/mL) at 120 h post infection, compared to virus control (5.95 log10FFU/mL). In contrast, no inhibitory effect of CA was observed against CHIKV infection under any condition. The mechanism of action of CA was investigated in silico by employing DENV-2 and CHIKV envelope glycoproteins. During docking, CA demonstrated equivalent binding at multiple sites on DENV-2 envelope protein, including GAG binding site, which have previously been reported to play a crucial role in host attachment and fusion, indicating blocking of these sites. However, CA did not show binding to the GAG binding site on envelope protein-2 of CHIKV. The in vitro and in silico findings suggest that CA possesses the ability to inhibit DENV-2 infection at the entry stage of its infection cycle and may be developed as a potential therapeutic agent against it.
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Kong B, Han CY, Kim SI, Patten DA, Han Y, Carmona E, Shieh DB, Cheung AC, Mes-Masson AM, Harper ME, Song YS, Tsang BK. Prohibitin 1 interacts with p53 in the regulation of mitochondrial dynamics and chemoresistance in gynecologic cancers. J Ovarian Res 2022; 15:70. [PMID: 35668443 PMCID: PMC9172162 DOI: 10.1186/s13048-022-00999-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Accepted: 05/13/2022] [Indexed: 12/30/2022] Open
Abstract
Background Mitochondrial dynamics (e.g. fission/fusion) play an important role in controlling chemoresistance in representative gynecologic malignancies, ovarian and cervical cancer. Processing the long form of Optic atrophy (L-Opa)1 is a distinctive character of mitochondrial fragmentation, associated with chemosensitivity. Here, we examined the role of prohibitin (Phb)1 in increasing L-Opa1 processing via the regulating mitochondrial protease, Oma1 and its direct interaction with p-p53 (ser15) and pro-apoptotic Bcl-2 antagonist/killer (Bak) 1 in the signaling axis and if this phenomenon is associated with prognosis of patients. Methods We compared Cisplatin (CDDP)-induced response of mitochondrial dynamics, molecular interaction among p-p53 (ser15)-Phb1-Bak, and chemoresponsiveness in paired chemosensitive and chemoresistant gynecologic cancer cells (ovarian and cervical cancer cell lines) using western blot, immunoprecipitation, sea horse, and immunofluorescence. Translational strategy with proximity ligation assessment in phb1-p-p53 (ser15) in human ovarian tumor sections further confirmed in vitro finding, associated with clinical outcome. Results We report that: (1) Knock-down of Phb1 prevents Cisplatin (cis-diamine-dichloroplatinum; CDDP) -induced changes in mitochondrial fragmentation and Oma1 mediated cleavage, and Opa1 processing; (2) In response to CDDP, Phb1 facilitates the p-p53 (ser15)-Phb1-Bak interaction in mitochondria in chemosensitive gynecologic cancer cells but not in chemoresistant cells; (3) Akt overexpression results in suppressed p-p53(Ser15)-Phb1 interaction and dysregulated mitochondrial dynamics, and (4) Consistent with in vitro findings, proximity ligation assessment (PLA) in human ovarian tumor sections demonstrated that p-p53(ser15)-Phb1-Bak interaction in mitochondria is associated with better chemoresponsiveness and clinical outcome of patients. Determining the molecular mechanisms by which Phb1 facilitates mitochondrial fragmentation and interacts with p53 may advance the current understanding of chemoresistance and pathogenesis of gynecologic cancer. Conclusion Determining the key molecular mechanisms by which Phb1 facilitates the formation of p-p53 (ser15)-Bak-Phb1 and its involvement in the regulation of mitochondrial dynamics and apoptosis may ultimately contribute to the current understanding of molecular and cellular basis of chemoresistance in this gynecologic cancer. Supplementary Information The online version contains supplementary material available at 10.1186/s13048-022-00999-x.
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Affiliation(s)
- Bao Kong
- Departments of Obstetrics and Gynecology and Cellular and Molecular Medicine, Interdisciplinary School of Health Sciences University of Ottawa, and Chronic Disease Program, Ottawa Hospital Research Institute, 501 Smyth Road, Mail Box #511, ON, K1H 8L6, Ottawa, Canada
| | - Chae Young Han
- Departments of Obstetrics and Gynecology and Cellular and Molecular Medicine, Interdisciplinary School of Health Sciences University of Ottawa, and Chronic Disease Program, Ottawa Hospital Research Institute, 501 Smyth Road, Mail Box #511, ON, K1H 8L6, Ottawa, Canada
| | - Se Ik Kim
- Department of Obstetrics and Gynecology and Cancer Research Institute, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea
| | - David A Patten
- Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Canada
| | - Youngjin Han
- Department of Obstetrics and Gynecology and Cancer Research Institute, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea
| | - Euridice Carmona
- Centre de recherche du Centre hospitalier de l'Université de Montréal and Institut du cancer de Montréal, Montréal, Canada
| | - Dar-Bin Shieh
- Institute of Basic Medical Science, Institute of Oral Medicine and Department of Stomatology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, 704, Taiwan
| | - Annie C Cheung
- Department of Pathology, The University of Hong Kong, Hong Kong, SAR, China
| | - Anne-Marie Mes-Masson
- Centre de recherche du Centre hospitalier de l'Université de Montréal and Institut du cancer de Montréal, Montréal, Canada
| | - Mary-Ellen Harper
- Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Canada
| | - Yong Sang Song
- Department of Obstetrics and Gynecology and Cancer Research Institute, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea
| | - Benjamin K Tsang
- Departments of Obstetrics and Gynecology and Cellular and Molecular Medicine, Interdisciplinary School of Health Sciences University of Ottawa, and Chronic Disease Program, Ottawa Hospital Research Institute, 501 Smyth Road, Mail Box #511, ON, K1H 8L6, Ottawa, Canada.
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Villegas-Coronado D, Guzman-Partida AM, Aispuro-Hernandez E, Vazquez-Moreno L, Huerta-Ocampo JÁ, Sarabia-Sainz JAI, Teran-Saavedra NG, Minjarez-Osorio C, Castro-Longoria R, Maldonado A, Lagarda-Diaz I. Characterization and expression of prohibitin during the mexican bean weevil (Zabrotes subfasciatus, Boheman, 1833) larvae development. Comp Biochem Physiol B Biochem Mol Biol 2022; 262:110770. [PMID: 35644320 DOI: 10.1016/j.cbpb.2022.110770] [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: 02/15/2022] [Revised: 05/18/2022] [Accepted: 05/23/2022] [Indexed: 11/16/2022]
Abstract
Prohibitin (PHB) is a highly conserved eukaryotic protein complex involved in multiple cellular processes. In insects, PHB has been identified as a potential target protein to insecticidal molecules acting as a receptor of PF2 insecticidal lectin in the midgut of Zabrotes subfasciatus larvae (bean pest) and Cry protein of Bacillus thuringiensis in Leptinotarsa decemlineata (Colorado potato beetle). This study aimed to characterize the structural features of Z. subfasciatus prohibitin (ZsPHB) by homology modeling and evaluate its expression and tissue localization at different stages of larval development both at the transcript and protein levels. The samples were collected from eggs and larvae of different developmental stages. The immunodetection of ZsPHB was done with anti-PHB1 and confirmed by LC-MS/MS analysis. Gene expression analysis of ZsPHB1 and ZsPHB2 was performed by RT-qPCR, and immunohistochemistry with FITC-labeled anti-PHB1. Results showed that ZsPHBs exhibit distinctive characteristics of the SPFH protein superfamily. The transcript levels suggest a coordinated expression of ZsPHB1 and ZsPHB2 genes, while ZsPHB1 was detected in soluble protein extracts depending on the stage of development. Histological examination showed ZsPHB1 is present in all larval tissues, with an intense fluorescence signal observed at the gut. These results suggest a physiologically important role of PHB during Z. subfasciatus development and show its regulation occurs at the transcriptional and post-transcriptional levels. This is the first characterization of PHB in Z. subfasciatus.
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Affiliation(s)
| | | | | | - Luz Vazquez-Moreno
- Centro de Investigación en Alimentación y Desarrollo, A.C., Hermosillo, 83304, Mexico
| | | | | | | | - Christian Minjarez-Osorio
- Departamento de Investigaciones Científicas y Tecnológicas, Universidad de Sonora, Hermosillo, 83000, Mexico
| | - Reina Castro-Longoria
- Departamento de Investigaciones Científicas y Tecnológicas, Universidad de Sonora, Hermosillo, 83000, Mexico
| | - Amir Maldonado
- Departamento de Física, Universidad de Sonora, Hermosillo, 83000, Mexico
| | - Irlanda Lagarda-Diaz
- CONACyT- Departamento de Física, Universidad de Sonora, Hermosillo, 83000, Mexico.
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Zhang L, He Y. Prohibitin inhibits high glucose‑induced apoptosis via maintaining mitochondrial function in human retinal capillary endothelial cells. Exp Ther Med 2022; 23:427. [PMID: 35607379 PMCID: PMC9121207 DOI: 10.3892/etm.2022.11354] [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: 12/19/2021] [Accepted: 04/19/2022] [Indexed: 11/21/2022] Open
Abstract
Mitochondrial dysfunction and excessive apoptosis of vascular endothelial cells play a critical role in the development of diabetic retinopathy (DR). Prohibitin (PHB), a significant regulator, maintains mitochondrial function and protects vascular endothelial cells against apoptosis. However, the mechanism underlying the protective effect of PHB on DR remains unclear. Since mitochondria are key regulators of vascular homeostasis, the present study aimed to investigate the molecular mechanism of PHB on maintaining mitochondrial function in human retinal capillary endothelial cells (HRCECs). To evaluate the role of PHB in cell apoptosis, HRCECs, transfected with or without PHB overexpression plasmid or small interfering RNA clones targeting PHB, were cultured in the presence of 5.5 mmol/l normal glucose (NG) or 30 mmol/l high glucose (HG). Subsequently, the apoptosis rate of HRCECs was determined using flow cytometry. The results showed that PHB was upregulated in HRCECs, while PHB knockdown promoted the generation of reactive oxygen species from mitochondria via inhibition of the activation of complex I. Additionally, the apoptosis rate of HRCECs in the HG group was notably enhanced compared with that in the NG group. Interestingly, PHB overexpression attenuated the increase in HG-mediated HRCEC apoptosis. Furthermore, treatment with HG upregulated expression of cleaved caspase-3 and cleaved poly(ADP-ribose) polymerase in vitro. The present study indicated that PHB could be a key modulator of mitochondrial homeostasis and could protect HRCECs against HG-induced apoptosis. Overall, the aforementioned findings provided experimental evidence supporting the potential protective effects of PHB on DR.
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Affiliation(s)
- Li Zhang
- Department of Ophthalmology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430014, P.R. China
| | - Ying He
- Department of Ophthalmology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430014, P.R. China
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Aparicio-Bautista DI, Chávez-Valenzuela D, Ambriz-Álvarez G, Córdova-Fraga T, Reyes-Grajeda JP, Medina-Contreras Ó, Rodríguez-Cruz F, García-Sierra F, Zúñiga-Sánchez P, Gutiérrez-Gutiérrez AM, Arellanes-Robledo J, Basurto-Islas G. An Extremely Low-Frequency Vortex Magnetic Field Modifies Protein Expression, Rearranges the Cytoskeleton, and Induces Apoptosis of a Human Neuroblastoma Cell Line. Bioelectromagnetics 2022; 43:225-244. [PMID: 35437793 DOI: 10.1002/bem.22400] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 11/10/2021] [Accepted: 03/19/2022] [Indexed: 11/07/2022]
Abstract
Homogeneous extremely low-frequency electromagnetic fields (ELF-EMFs) alter biological phenomena, including the cell phenotype and proliferation rate. Heterogenous vortex magnetic fields (VMFs), a new approach of exposure to magnetic fields, induce systematic movements on charged biomolecules from target cells; however, the effect of VMFs on living systems remains uncertain. Here, we designed, constructed, and characterized an ELF-VMF-modified Rodin's coil to expose SH-SY5Y cells. Samples were analyzed by performing 2D-differential-gel electrophoresis, identified by MALDI-TOF/TOF, validated by western blotting, and characterized by confocal microscopy. A total of 106 protein spots were differentially expressed; 40 spots were downregulated and 66 were upregulated in the exposed cell proteome, compared to the control cell proteome. The identified spots are associated with cytoskeleton and cell viability proteins, and according to the protein-protein interaction network, a significant interaction among them was found. Our data revealed a decrease in cell survival associated with apoptotic cells without effects on the cell cycle, as well as evident changes in the cytoskeleton. We demonstrated that ELF-VMFs, at a specific frequency and exposure time, alter the cell proteome and structurally affect the target cells. This is the first report showing that VMF application might be a versatile system for testing different hypotheses in living systems, using appropriate exposure parameters.© 2022 Bioelectromagnetics Society.
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Affiliation(s)
- Diana I Aparicio-Bautista
- Laboratorio de Estructura de Proteínas, Instituto Nacional de Medicina Genómica, Ciudad de México, México
| | | | | | - Teodoro Córdova-Fraga
- División de Ciencias e Ingenierías, Universidad de Guanajuato, León, Guanajuato, México
| | - Juan P Reyes-Grajeda
- Laboratorio de Estructura de Proteínas, Instituto Nacional de Medicina Genómica, Ciudad de México, México
| | - Óscar Medina-Contreras
- Laboratorio de Investigación en Inmunología y Proteómica, Hospital Infantil de México Federico Gómez, Ciudad de México, México
| | - Fanny Rodríguez-Cruz
- Departamento de Biología Celular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV) Unidad Zacatenco, Ciudad de México, México
| | - Francisco García-Sierra
- Departamento de Biología Celular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV) Unidad Zacatenco, Ciudad de México, México
| | | | | | - Jaime Arellanes-Robledo
- CONACYT-Laboratorio de Enfermedades Hepáticas, Instituto Nacional de Medicina Genómica, Ciudad de México, México
| | - Gustavo Basurto-Islas
- División de Ciencias e Ingenierías, Universidad de Guanajuato, León, Guanajuato, México
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Prohibitin plays a role in the functional plasticity of macrophages. Mol Immunol 2022; 144:152-165. [DOI: 10.1016/j.molimm.2022.02.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 01/11/2022] [Accepted: 02/15/2022] [Indexed: 11/17/2022]
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Peng Y, Cheng W, Duan J, Zhao Y, Zhou Z, Zhou A, Deng M, Peng H, Ouyang R, Chen Y, Chen P. Prohibitin Protects Pulmonary Microvascular Endothelial Cells Against Cigarette Smoke Extract-Induced Cell Apoptosis and Inflammation. Int J Chron Obstruct Pulmon Dis 2022; 17:653-665. [PMID: 35378837 PMCID: PMC8976484 DOI: 10.2147/copd.s345058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 03/12/2022] [Indexed: 11/23/2022] Open
Abstract
Background Prohibitin has been identified to play roles in cell survival and apoptosis. Here, this study aimed to clarify the role of prohibitin in cigarette smoke extract (CSE)-induced endothelial cell apoptosis. Methods The protein level of prohibitin was assessed by Western blot in lung tissues from emphysema and control mice. CSE-induced human pulmonary microvascular endothelial cells (hPMECs) were applied to mimic smoke-related cell apoptosis in vitro. Prohibitin was overexpressed in hPMECs with or without CSE. Mitochondrial function was analyzed by JC-1 staining and ATP assay kits. Oxidative stress was assessed by flow cytometry, fluorescence staining and immunocytochemistry. Apoptosis was analyzed by flow cytometry, Western blot and caspase-3 activity assays. In addition, the expression of inflammatory markers was assessed by Western blot and real-time polymerase chain reaction (PCR). The secretion of inflammatory cytokines was measured by ELISA. Results Prohibitin was downregulated in emphysema mouse tissues compared with control experiments. Consistently, CSE inhibited both the protein and RNA levels of prohibitin in hPMECs in a dose-dependent manner. Gain-of-function experiments indicated that CSE induced collapse of mitochondrial membrane potential (MMP) and loss of ATP, while prohibitin improved mitochondrial function. CSE induced robust ROS production and oxidative DNA damage, while prohibitin decreased this damage. Upregulation of prohibitin protected the apoptosis of hPMECs from CSE. Overexpression of prohibitin significantly reduced the levels of the main proinflammatory cytokines. Finally, prohibitin inhibited nuclear factor-kappa B (NF-κB) p65 accumulation and IκBα degradation induced by CSE. Conclusion The current findings suggest that CSE-mediated mitochondrial dysfunction, oxidative stress, cell apoptosis and inflammation in hPMECs were reduced by overexpression of prohibitin. We identified prohibitin as a novel regulator of endothelial cell apoptosis and survival in the context of CSE exposure.
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Affiliation(s)
- Yating Peng
- Department of Pulmonary and Critical Care Medicine, Second Xiang Ya Hospital, Central South University, Changsha, Hunan, 410011, People’s Republic of China
- Institute of Respiratory Disease, Central South University, Changsha, Hunan, 410011, People’s Republic of China
- Hunan Centre for Diagnosis and Treatment of Respiratory Disease, Changsha, Hunan, 410011, People’s Republic of China
| | - Wei Cheng
- Department of Pulmonary and Critical Care Medicine, Second Xiang Ya Hospital, Central South University, Changsha, Hunan, 410011, People’s Republic of China
- Institute of Respiratory Disease, Central South University, Changsha, Hunan, 410011, People’s Republic of China
- Hunan Centre for Diagnosis and Treatment of Respiratory Disease, Changsha, Hunan, 410011, People’s Republic of China
| | - Jiaxi Duan
- Department of Pulmonary and Critical Care Medicine, Second Xiang Ya Hospital, Central South University, Changsha, Hunan, 410011, People’s Republic of China
- Institute of Respiratory Disease, Central South University, Changsha, Hunan, 410011, People’s Republic of China
- Hunan Centre for Diagnosis and Treatment of Respiratory Disease, Changsha, Hunan, 410011, People’s Republic of China
| | - Yiyang Zhao
- Department of Pulmonary and Critical Care Medicine, Second Xiang Ya Hospital, Central South University, Changsha, Hunan, 410011, People’s Republic of China
- Institute of Respiratory Disease, Central South University, Changsha, Hunan, 410011, People’s Republic of China
- Hunan Centre for Diagnosis and Treatment of Respiratory Disease, Changsha, Hunan, 410011, People’s Republic of China
| | - Zijing Zhou
- Department of Pulmonary and Critical Care Medicine, Second Xiang Ya Hospital, Central South University, Changsha, Hunan, 410011, People’s Republic of China
- Institute of Respiratory Disease, Central South University, Changsha, Hunan, 410011, People’s Republic of China
- Hunan Centre for Diagnosis and Treatment of Respiratory Disease, Changsha, Hunan, 410011, People’s Republic of China
| | - Aiyuan Zhou
- Department of Pulmonary and Critical Care Medicine, Second Xiang Ya Hospital, Central South University, Changsha, Hunan, 410011, People’s Republic of China
- Institute of Respiratory Disease, Central South University, Changsha, Hunan, 410011, People’s Republic of China
- Hunan Centre for Diagnosis and Treatment of Respiratory Disease, Changsha, Hunan, 410011, People’s Republic of China
| | - Minhua Deng
- Department of Pulmonary and Critical Care Medicine, Second Xiang Ya Hospital, Central South University, Changsha, Hunan, 410011, People’s Republic of China
- Institute of Respiratory Disease, Central South University, Changsha, Hunan, 410011, People’s Republic of China
- Hunan Centre for Diagnosis and Treatment of Respiratory Disease, Changsha, Hunan, 410011, People’s Republic of China
- Department of Respiratory, PLA Rocket Force Characteristic Medical Center, Beijing, 100088, People’s Republic of China
| | - Hong Peng
- Department of Pulmonary and Critical Care Medicine, Second Xiang Ya Hospital, Central South University, Changsha, Hunan, 410011, People’s Republic of China
- Institute of Respiratory Disease, Central South University, Changsha, Hunan, 410011, People’s Republic of China
- Hunan Centre for Diagnosis and Treatment of Respiratory Disease, Changsha, Hunan, 410011, People’s Republic of China
| | - Ruoyun Ouyang
- Department of Pulmonary and Critical Care Medicine, Second Xiang Ya Hospital, Central South University, Changsha, Hunan, 410011, People’s Republic of China
- Institute of Respiratory Disease, Central South University, Changsha, Hunan, 410011, People’s Republic of China
- Hunan Centre for Diagnosis and Treatment of Respiratory Disease, Changsha, Hunan, 410011, People’s Republic of China
| | - Yan Chen
- Department of Pulmonary and Critical Care Medicine, Second Xiang Ya Hospital, Central South University, Changsha, Hunan, 410011, People’s Republic of China
- Institute of Respiratory Disease, Central South University, Changsha, Hunan, 410011, People’s Republic of China
- Hunan Centre for Diagnosis and Treatment of Respiratory Disease, Changsha, Hunan, 410011, People’s Republic of China
| | - Ping Chen
- Department of Pulmonary and Critical Care Medicine, Second Xiang Ya Hospital, Central South University, Changsha, Hunan, 410011, People’s Republic of China
- Institute of Respiratory Disease, Central South University, Changsha, Hunan, 410011, People’s Republic of China
- Hunan Centre for Diagnosis and Treatment of Respiratory Disease, Changsha, Hunan, 410011, People’s Republic of China
- Correspondence: Ping Chen, Email
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Capitanio D, Moriggi M, Barbacini P, Torretta E, Moroni I, Blasevich F, Morandi L, Mora M, Gelfi C. Molecular Fingerprint of BMD Patients Lacking a Portion in the Rod Domain of Dystrophin. Int J Mol Sci 2022; 23:ijms23052624. [PMID: 35269765 PMCID: PMC8910510 DOI: 10.3390/ijms23052624] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 02/21/2022] [Accepted: 02/24/2022] [Indexed: 01/19/2023] Open
Abstract
BMD is characterized by a marked heterogeneity of gene mutations resulting in many abnormal dystrophin proteins with different expression and residual functions. The smaller dystrophin molecules lacking a portion around exon 48 of the rod domain, named the D8 region, are related to milder phenotypes. The study aimed to determine which proteins might contribute to preserving muscle function in these patients. Patients were subdivided, based on the absence or presence of deletions in the D8 region, into two groups, BMD1 and BMD2. Muscle extracts were analyzed by 2-D DIGE, label-free LC-ESI-MS/MS, and Ingenuity pathway analysis (IPA). Increased levels of proteins typical of fast fibers and of proteins involved in the sarcomere reorganization characterize BMD2. IPA of proteomics datasets indicated in BMD2 prevalence of glycolysis and gluconeogenesis and a correct flux through the TCA cycle enabling them to maintain both metabolism and epithelial adherens junction. A 2-D DIGE analysis revealed an increase of acetylated proteoforms of moonlighting proteins aldolase, enolase, and glyceraldehyde-3-phosphate dehydrogenase that can target the nucleus promoting stem cell recruitment and muscle regeneration. In BMD2, immunoblotting indicated higher levels of myogenin and lower levels of PAX7 and SIRT1/2 associated with a set of proteins identified by proteomics as involved in muscle homeostasis maintenance.
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Affiliation(s)
- Daniele Capitanio
- Department of Biomedical Sciences for Health, University of Milan, 20054 Segrate, Italy; (D.C.); (P.B.)
| | - Manuela Moriggi
- Gastroenterology and Digestive Endoscopy Unit, IRCCS Policlinico San Donato, 20097 Milan, Italy;
| | - Pietro Barbacini
- Department of Biomedical Sciences for Health, University of Milan, 20054 Segrate, Italy; (D.C.); (P.B.)
| | | | - Isabella Moroni
- Child Neurology Unit, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20133 Milan, Italy;
| | - Flavia Blasevich
- Neuromuscular Diseases and Neuroimmunology Unit, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20133 Milan, Italy; (F.B.); (L.M.); (M.M.)
| | - Lucia Morandi
- Neuromuscular Diseases and Neuroimmunology Unit, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20133 Milan, Italy; (F.B.); (L.M.); (M.M.)
| | - Marina Mora
- Neuromuscular Diseases and Neuroimmunology Unit, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20133 Milan, Italy; (F.B.); (L.M.); (M.M.)
| | - Cecilia Gelfi
- Department of Biomedical Sciences for Health, University of Milan, 20054 Segrate, Italy; (D.C.); (P.B.)
- IRCCS Istituto Ortopedico Galeazzi, 20161 Milan, Italy;
- Correspondence: ; Tel.: +39-025-033-0475
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Heydarnezhad Asl M, Pasban Khelejani F, Bahojb Mahdavi SZ, Emrahi L, Jebelli A, Mokhtarzadeh A. The various regulatory functions of long noncoding RNAs in apoptosis, cell cycle, and cellular senescence. J Cell Biochem 2022; 123:995-1024. [PMID: 35106829 DOI: 10.1002/jcb.30221] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 12/28/2021] [Accepted: 01/11/2022] [Indexed: 12/12/2022]
Abstract
Long noncoding RNAs (lncRNAs) are a group of noncoding cellular RNAs involved in significant biological phenomena such as differentiation, cell development, genomic imprinting, adjusting the enzymatic activity, regulating chromosome conformation, apoptosis, cell cycle, and cellular senescence. The misregulation of lncRNAs interrupting normal biological processes has been implicated in tumor formation and metastasis, resulting in cancer. Apoptosis and cell cycle, two main biological phenomena, are highly conserved and intimately coupled mechanisms. Hence, some cell cycle regulators can influence both programmed cell death and cell division. Apoptosis eliminates defective and unwanted cells, and the cell cycle enables cells to replicate themselves. The improper regulation of apoptosis and cell cycle contributes to numerous disorders such as neurodegenerative and autoimmune diseases, viral infection, anemia, and mainly cancer. Cellular senescence is a tumor-suppressing response initiated by environmental and internal stress factors. This phenomenon has recently attained more attention due to its therapeutic implications in the field of senotherapy. In this review, the regulatory roles of lncRNAs on apoptosis, cell cycle, and senescence will be discussed. First, the role of lncRNAs in mitochondrial dynamics and apoptosis is addressed. Next, the interaction between lncRNAs and caspases, pro/antiapoptotic proteins, and also EGFR/PI3K/PTEN/AKT/mTORC1 signaling pathway will be investigated. Furthermore, the effect of lncRNAs in the cell cycle is surveyed through interaction with cyclins, cdks, p21, and wnt/β-catenin/c-myc pathway. Finally, the function of essential lncRNAs in cellular senescence is mentioned.
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Affiliation(s)
| | - Faezeh Pasban Khelejani
- Department of Cell and Molecular Biology, Faculty of Basic Sciences, University of Maragheh, Maragheh, Iran
| | | | - Leila Emrahi
- Department of Medical Genetics, Faculty of Medical Science, Tarbiat Modares University, Tehran, Iran
| | - Asiyeh Jebelli
- Department of Biological Science, Faculty of Basic Science, Higher Education Institute of Rab-Rashid, Tabriz, Iran.,Tuberculosis and Lung Disease Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ahad Mokhtarzadeh
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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Beller NC, Lukowski JK, Ludwig KR, Hummon AB. Spatial Stable Isotopic Labeling by Amino Acids in Cell Culture: Pulse-Chase Labeling of Three-Dimensional Multicellular Spheroids for Global Proteome Analysis. Anal Chem 2021; 93:15990-15999. [PMID: 34813286 DOI: 10.1021/acs.analchem.1c03461] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Three-dimensional cell cultures, or spheroids, are important model systems for cancer research because they recapitulate chemical and phenotypic aspects of in vivo tumors. Spheroids develop radially symmetric chemical gradients, resulting in distinct cellular populations. Stable isotopic labeling by amino acids in cell culture (SILAC) is a well-established approach to quantify protein expression and has previously been used in a pulse-chase format to evaluate temporal changes. In this article, we demonstrate that distinct isotopic signatures can be introduced into discrete spatial cellular populations, effectively tracking proteins to original locations in the spheroid, using a platform that we refer to as spatial SILAC. Spheroid populations were grown with light, medium, and heavy isotopic media, and the concentric shells of cells were harvested by serial trypsinization. Proteins were quantitatively analyzed by ultraperformance liquid chromatography-tandem mass spectrometry. The isotopic signatures correlated with the spatial location and the isotope position do not significantly impact the proteome of each individual layer. Spatial SILAC can be used to examine the proteomic changes in the different layers of the spheroid and to identify protein biomarkers throughout the structure. We show that SILAC labels can be discretely pulsed to discrete positions, without altering the spheroid's proteome, promising future combined pharmacodynamic and pharmacokinetic studies.
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Affiliation(s)
- Nicole C Beller
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
| | - Jessica K Lukowski
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Katelyn R Ludwig
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Amanda B Hummon
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States.,Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio 43210, United States
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Takagi H, Moyama C, Taniguchi K, Ando K, Matsuda R, Ando S, Ii H, Kageyama S, Kawauchi A, Chouha N, Désaubry L, Nakata S. Fluorizoline blocks the interaction between prohibitin-2 and γ -glutamylcyclotransferase, and induces p21Waf1/Cip1 expression in MCF7 breast cancer cells. Mol Pharmacol 2021; 101:78-86. [PMID: 34862308 DOI: 10.1124/molpharm.121.000334] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Accepted: 11/29/2021] [Indexed: 11/22/2022] Open
Abstract
Prohibitin-2 (PHB2) is a scaffold protein that has pleiotropic functions, which include interacting with γ-glutamylcyclotransferase (GGCT) in the cytoplasm and repressing the transcriptional activities of the p21Waf1/Cip (p21) gene in the nucleus. The cytotoxic drug fluorizoline binds to PHB1/2 and exerts antiproliferative actions on cancer cells. However, the precise mechanism underlying the antiproliferative effects of fluorizoline is not fully elucidated. In the present study, we first show that fluorizoline induces p21 expression in several human cancer cell lines,including MCF7 breast cancer cells. Treatment of MCF7 cells with fluorizoline suppressed proliferation and prevented cells from entering into theDNA synthesis phase.Knockdown of p21 rescued the suppressed proliferation, indicating that fluorizoline inhibited MCF7 cell growth via the induction of p21. Overexpression of PHB2 in MCF7 cells prevented the induction of p21 expression by fluorizoline, and restored the antiproliferative effects and blockade of cell cycle progression. Moreover, treatment of MCF7 cells with fluorizoline inhibited the interaction between endogenous PHB2 and GGCT proteins, and reduced the level of nuclear localization of PHB2 proteins. These results indicate that targeting PHB2 with fluorizoline induces the expression of p21 and consequently blocks proliferation of cancer cells. Significance Statement This study shows that fluorizoline may be a promising novel anticancer drug candidate that induces p21 expression and blocks cell-cycle progression in human cancer cell lines. In addition, we show that fluorizoline inhibits the interaction between PHB2 and GGCT and reduces the nuclear localization of PHB2 proteins that regulates p21 expression.
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Affiliation(s)
| | | | | | - Kota Ando
- Kyoto Pharmaceutical University, Japan
| | | | | | - Hiromi Ii
- Kyoto Pharmaceutical University, Japan
| | | | | | | | | | - Susumu Nakata
- Department of Clinical Oncology, Kyoto Pharmaceutical University, Japan
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37
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Fox CA, Lethcoe K, Ryan RO. Calcium-induced release of cytochrome c from cardiolipin nanodisks: Implications for apoptosis. BIOCHIMICA ET BIOPHYSICA ACTA. BIOMEMBRANES 2021; 1863:183722. [PMID: 34400138 PMCID: PMC8464532 DOI: 10.1016/j.bbamem.2021.183722] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 07/19/2021] [Accepted: 07/29/2021] [Indexed: 06/13/2023]
Abstract
Miniature bilayer membranes comprised of phospholipid and an apolipoprotein scaffold, termed nanodisks (ND), have been used in binding studies. When ND formulated with cardiolipin (CL), but not phosphatidylcholine, were incubated with cytochrome c, FPLC gel filtration chromatography provided evidence of a stable binding interaction. Incubation of CL ND with CaCl2 resulted in a concentration-dependent increase in sample turbidity caused by ND particle disruption. Prior incubation of CL ND with cytochrome c increased CL ND sensitivity to CaCl2-induced effects. Centrifugation of CaCl2-treated CL ND samples yielded pellet and supernatant fractions. Whereas the ND scaffold protein, apolipophorin III, was recovered in the pellet fraction along with CL, the majority of the cytochrome c pool was in the supernatant fraction. Moreover, when cytochrome c CL ND were incubated with CaCl2 at concentrations below the threshold to induce ND particle disruption, FPLC analysis showed that cytochrome c was released. Pre-incubation of CL ND with CaCl2 under conditions that do not disrupt ND particle integrity prevented cytochrome c binding to CL ND. Thus, competition between Ca2+ and cytochrome c for a common binding site on CL modulates cytochrome c binding and likely plays a role in its dissociation from CL-rich cristae membranes in response to apoptotic stimuli.
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Affiliation(s)
- Colin A Fox
- Department of Biochemistry and Molecular Biology, University of Nevada, Reno, Reno, NV 89557, United States of America
| | - Kyle Lethcoe
- Department of Biochemistry and Molecular Biology, University of Nevada, Reno, Reno, NV 89557, United States of America
| | - Robert O Ryan
- Department of Biochemistry and Molecular Biology, University of Nevada, Reno, Reno, NV 89557, United States of America.
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38
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Adhikari UK, Sakiz E, Habiba U, Mikhael M, Senesi M, David MA, Guillemin GJ, Ooi L, Karl T, Collins S, Tayebi M. Treatment of microglia with Anti-PrP monoclonal antibodies induces neuronal apoptosis in vitro. Heliyon 2021; 7:e08644. [PMID: 35005289 PMCID: PMC8715334 DOI: 10.1016/j.heliyon.2021.e08644] [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: 04/29/2021] [Revised: 07/23/2021] [Accepted: 12/16/2021] [Indexed: 11/04/2022] Open
Abstract
Previous reports highlighted the neurotoxic effects caused by some motif-specific anti-PrPC antibodies in vivo and in vitro. In the current study, we investigated the detailed alterations of the proteome with liquid chromatography–mass spectrometry following direct application of anti-PrPC antibodies on mouse neuroblastoma cells (N2a) and mouse primary neuronal (MPN) cells or by cross-linking microglial PrPC with anti-PrPC antibodies prior to co-culture with the N2a/MPN cells. Here, we identified 4 (3 upregulated and 1 downregulated) and 17 (11 upregulated and 6 downregulated) neuronal apoptosis-related proteins following treatment of the N2a and N11 cell lines respectively when compared with untreated cells. In contrast, we identified 1 (upregulated) and 4 (2 upregulated and 2 downregulated) neuronal apoptosis-related proteins following treatment of MPN cells and N11 when compared with untreated cells. Furthermore, we also identified 3 (2 upregulated and 1 downregulated) and 2 (1 upregulated and 1 downregulated) neuronal apoptosis-related related proteins following treatment of MPN cells and N11 when compared to treatment with an anti-PrP antibody that lacks binding specificity for mouse PrP. The apoptotic effect of the anti-PrP antibodies was confirmed with flow cytometry following labelling of Annexin V-FITC. The toxic effects of the anti-PrP antibodies was more intense when antibody-treated N11 were co-cultured with the N2a and the identified apoptosis proteome was shown to be part of the PrPC-interactome. Our observations provide a new insight into the prominent role played by microglia in causing neurotoxic effects following treatment with anti-PrPC antibodies and might be relevant to explain the antibody mediated toxicity observed in other related neurodegenerative diseases such as Alzheimer. Antibody cross-linking neuronal PrPC induces apoptosis. Antibody cross-linking microglial PrPC induces neuronal apoptosis. Different apoptotic pathways were triggered by specific anti-PrP antibody treatments.
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39
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Ayash M, Abukhalaf M, Thieme D, Proksch C, Heilmann M, Schattat MH, Hoehenwarter W. LC-MS Based Draft Map of the Arabidopsis thaliana Nuclear Proteome and Protein Import in Pattern Triggered Immunity. FRONTIERS IN PLANT SCIENCE 2021; 12:744103. [PMID: 34858452 PMCID: PMC8630587 DOI: 10.3389/fpls.2021.744103] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 10/11/2021] [Indexed: 06/13/2023]
Abstract
Despite its central role as the ark of genetic information and gene expression the plant nucleus is surprisingly understudied. We isolated nuclei from the Arabidopsis thaliana dark grown cell culture left untreated and treated with flg22 and nlp20, two elicitors of pattern triggered immunity (PTI) in plants, respectively. An liquid chromatography mass spectrometry (LC-MS) based discovery proteomics approach was used to measure the nuclear proteome fractions. An enrichment score based on the relative abundance of cytoplasmic, mitochondrial and Golgi markers in the nuclear protein fraction allowed us to curate the nuclear proteome producing high quality catalogs of around 3,000 nuclear proteins under untreated and both PTI conditions. The measurements also covered low abundant proteins including more than 100 transcription factors and transcriptional co-activators. We disclose a list of several hundred potentially dual targeted proteins including proteins not yet found before for further study. Protein import into the nucleus in plant immunity is known. Here we sought to gain a broader impression of this phenomenon employing our proteomics data and found 157 and 73 proteins to possibly be imported into the nucleus upon stimulus with flg22 and nlp20, respectively. Furthermore, the abundance of 93 proteins changed significantly in the nucleus following elicitation of immunity. These results suggest promiscuous ribosome assembly and a role of prohibitins and cytochrome C in the nucleus in PTI.
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Affiliation(s)
- Mohamed Ayash
- Department Biochemistry of Plant Interactions, Leibniz Institute of Plant Biochemistry, Halle, Germany
| | - Mohammad Abukhalaf
- Department Biochemistry of Plant Interactions, Leibniz Institute of Plant Biochemistry, Halle, Germany
| | - Domenika Thieme
- Department Biochemistry of Plant Interactions, Leibniz Institute of Plant Biochemistry, Halle, Germany
| | - Carsten Proksch
- Department Biochemistry of Plant Interactions, Leibniz Institute of Plant Biochemistry, Halle, Germany
| | - Mareike Heilmann
- Institute for Biochemistry and Biotechnology, Martin-Luther University Halle-Wittenberg, Halle, Germany
| | | | - Wolfgang Hoehenwarter
- Department Biochemistry of Plant Interactions, Leibniz Institute of Plant Biochemistry, Halle, Germany
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40
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Cuadrado-Tejedor M, Pérez-González M, Alfaro-Ruiz R, Badesso S, Sucunza D, Espelosin M, Ursúa S, Lachen-Montes M, Fernández-Irigoyen J, Santamaria E, Luján R, García-Osta A. Amyloid-Driven Tau Accumulation on Mitochondria Potentially Leads to Cognitive Deterioration in Alzheimer's Disease. Int J Mol Sci 2021; 22:ijms222111950. [PMID: 34769380 PMCID: PMC8584544 DOI: 10.3390/ijms222111950] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 10/28/2021] [Accepted: 10/30/2021] [Indexed: 11/18/2022] Open
Abstract
Despite the well-accepted role of the two main neuropathological markers (β-amyloid and tau) in the progression of Alzheimer’s disease, the interaction and specific contribution of each of them is not fully elucidated. To address this question, in the present study, an adeno-associated virus (AAV9) carrying the mutant P301L form of human tau, was injected into the dorsal hippocampi of APP/PS1 transgenic mice or wild type mice (WT). Three months after injections, memory tasks, biochemical and immunohistochemical analysis were performed. We found that the overexpression of hTauP301L accelerates memory deficits in APP/PS1 mice, but it did not affect memory function of WT mice. Likewise, biochemical assays showed that only in the case of APP/PS1-hTauP301L injected mice, an important accumulation of tau was observed in the insoluble urea fraction. Similarly, electron microscopy images revealed that numerous clusters of tau immunoparticles appear at the dendrites of APP/PS1 injected mice and not in WT animals, suggesting that the presence of amyloid is necessary to induce tau aggregation. Interestingly, these tau immunoparticles accumulate in dendritic mitochondria in the APP/PS1 mice, whereas most of mitochondria in WT injected mice remain free of tau immunoparticles. Taken together, it seems that amyloid induces tau aggregation and accumulation in the dendritic mitochondria and subsequently may alter synapse function, thus, contributing to accelerate cognitive decline in APP/PS1 mice.
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Affiliation(s)
- Mar Cuadrado-Tejedor
- Neurosciences Program, Center for Applied Medical Research (CIMA), University of Navarra, IdiSNA, 31008 Pamplona, Spain; (M.P.-G.); (S.B.); (M.E.); (S.U.)
- Department of Pathology, Anatomy and Physiology, School of Medicine, University of Navarra, 31008 Pamplona, Spain
- Correspondence: (M.C.-T.); (A.G.-O.)
| | - Marta Pérez-González
- Neurosciences Program, Center for Applied Medical Research (CIMA), University of Navarra, IdiSNA, 31008 Pamplona, Spain; (M.P.-G.); (S.B.); (M.E.); (S.U.)
- Department of Pathology, Anatomy and Physiology, School of Medicine, University of Navarra, 31008 Pamplona, Spain
| | - Rocío Alfaro-Ruiz
- Synaptic Structure Laboratory, Instituto de Investigación en Discapacidades Neurológicas (IDINE), Department Ciencias Médicas, Facultad de Medicina, Universidad Castilla-La Mancha, 02008 Albacete, Spain; (R.A.-R.); (R.L.)
| | - Sara Badesso
- Neurosciences Program, Center for Applied Medical Research (CIMA), University of Navarra, IdiSNA, 31008 Pamplona, Spain; (M.P.-G.); (S.B.); (M.E.); (S.U.)
- Department of Pathology, Anatomy and Physiology, School of Medicine, University of Navarra, 31008 Pamplona, Spain
| | - Diego Sucunza
- Neurosciences Program, Center for Applied Medical Research (CIMA), University of Navarra, IdiSNA, 31008 Pamplona, Spain; (M.P.-G.); (S.B.); (M.E.); (S.U.)
| | - María Espelosin
- Neurosciences Program, Center for Applied Medical Research (CIMA), University of Navarra, IdiSNA, 31008 Pamplona, Spain; (M.P.-G.); (S.B.); (M.E.); (S.U.)
| | - Susana Ursúa
- Neurosciences Program, Center for Applied Medical Research (CIMA), University of Navarra, IdiSNA, 31008 Pamplona, Spain; (M.P.-G.); (S.B.); (M.E.); (S.U.)
| | - Mercedes Lachen-Montes
- Clinical Neuroproteomics Unit, Proteomics Platform, Proteored-ISCIII, Navarrabiomed, Hospital Universitario de Navarra (HUN), Universidad Pública de Navarra (UPNA), IdiSNA, 31008 Pamplona, Spain; (M.L.-M.); (J.F.-I.); (E.S.)
| | - Joaquín Fernández-Irigoyen
- Clinical Neuroproteomics Unit, Proteomics Platform, Proteored-ISCIII, Navarrabiomed, Hospital Universitario de Navarra (HUN), Universidad Pública de Navarra (UPNA), IdiSNA, 31008 Pamplona, Spain; (M.L.-M.); (J.F.-I.); (E.S.)
| | - Enrique Santamaria
- Clinical Neuroproteomics Unit, Proteomics Platform, Proteored-ISCIII, Navarrabiomed, Hospital Universitario de Navarra (HUN), Universidad Pública de Navarra (UPNA), IdiSNA, 31008 Pamplona, Spain; (M.L.-M.); (J.F.-I.); (E.S.)
| | - Rafael Luján
- Synaptic Structure Laboratory, Instituto de Investigación en Discapacidades Neurológicas (IDINE), Department Ciencias Médicas, Facultad de Medicina, Universidad Castilla-La Mancha, 02008 Albacete, Spain; (R.A.-R.); (R.L.)
| | - Ana García-Osta
- Neurosciences Program, Center for Applied Medical Research (CIMA), University of Navarra, IdiSNA, 31008 Pamplona, Spain; (M.P.-G.); (S.B.); (M.E.); (S.U.)
- Correspondence: (M.C.-T.); (A.G.-O.)
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41
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Belser M, Walker DW. Role of Prohibitins in Aging and Therapeutic Potential Against Age-Related Diseases. Front Genet 2021; 12:714228. [PMID: 34868199 PMCID: PMC8636131 DOI: 10.3389/fgene.2021.714228] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 09/21/2021] [Indexed: 12/16/2022] Open
Abstract
A decline in mitochondrial function has long been associated with age-related health decline. Several lines of evidence suggest that interventions that stimulate mitochondrial autophagy (mitophagy) can slow aging and prolong healthy lifespan. Prohibitins (PHB1 and PHB2) assemble at the mitochondrial inner membrane and are critical for mitochondrial homeostasis. In addition, prohibitins (PHBs) have diverse roles in cell and organismal biology. Here, we will discuss the role of PHBs in mitophagy, oxidative phosphorylation, cellular senescence, and apoptosis. We will also discuss the role of PHBs in modulating lifespan. In addition, we will review the links between PHBs and diseases of aging. Finally, we will discuss the emerging concept that PHBs may represent an attractive therapeutic target to counteract aging and age-onset disease.
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Affiliation(s)
- Misa Belser
- Department of Molecular, Cell, and Developmental Biology, University of California, Los Angeles, Los Angeles, CA, United States
| | - David W. Walker
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, CA, United States
- Molecular Biology Institute, University of California, Los Angeles, Los Angeles, CA, United States
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42
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The prohibitin-binding compound fluorizoline inhibits mitophagy in cancer cells. Oncogenesis 2021; 10:64. [PMID: 34580273 PMCID: PMC8476632 DOI: 10.1038/s41389-021-00352-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 08/26/2021] [Accepted: 09/03/2021] [Indexed: 01/25/2023] Open
Abstract
Fluorizoline is a prohibitin-binding compound that triggers apoptosis in several cell lines from murine and human origin, as well as in primary cells from hematologic malignancies by inducing the integrated stress response and ER stress. Recently, it was described that PHB (Prohibitin) 1 and 2 are crucial mitophagy receptors involved in mediating the autophagic degradation of mitochondria. We measured mitophagy in HeLa cells expressing Parkin and in A549, a lung cancer cell line that can undergo mitophagy in a Parkin-independent manner, and we demonstrated that both fluorizoline and rocaglamide A, another PHB-binding molecule, inhibit CCCP- and OA-induced mitophagy. Moreover, we demonstrated that PHBs are mediating Parkin-dependent mitophagy. In conclusion, besides being a potent pro-apoptotic compound, we present fluorizoline as a promising new mitophagy modulator that could be used as anticancer agent.
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Oftedal BE, Maio S, Handel AE, White MPJ, Howie D, Davis S, Prevot N, Rota IA, Deadman ME, Kessler BM, Fischer R, Trede NS, Sezgin E, Maizels RM, Holländer GA. The chaperonin CCT8 controls proteostasis essential for T cell maturation, selection, and function. Commun Biol 2021; 4:681. [PMID: 34083746 PMCID: PMC8175432 DOI: 10.1038/s42003-021-02203-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Accepted: 05/07/2021] [Indexed: 12/13/2022] Open
Abstract
T cells rely for their development and function on the correct folding and turnover of proteins generated in response to a broad range of molecular cues. In the absence of the eukaryotic type II chaperonin complex, CCT, T cell activation induced changes in the proteome are compromised including the formation of nuclear actin filaments and the formation of a normal cell stress response. Consequently, thymocyte maturation and selection, and T cell homeostatic maintenance and receptor-mediated activation are severely impaired. In the absence of CCT-controlled protein folding, Th2 polarization diverges from normal differentiation with paradoxical continued IFN-γ expression. As a result, CCT-deficient T cells fail to generate an efficient immune protection against helminths as they are unable to sustain a coordinated recruitment of the innate and adaptive immune systems. These findings thus demonstrate that normal T cell biology is critically dependent on CCT-controlled proteostasis and that its absence is incompatible with protective immunity.
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Affiliation(s)
- Bergithe E Oftedal
- Developmental Immunology, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, OX3 9DS, UK
- Department of Clinical Science, University of Bergen, Bergen, Norway, K.G. Jebsen Center for Autoimmune Disorders, Bergen, Norway
| | - Stefano Maio
- Developmental Immunology, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, OX3 9DS, UK
| | - Adam E Handel
- Developmental Immunology, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, OX3 9DS, UK
| | - Madeleine P J White
- Wellcome Centre for Integrative Parasitology, Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, G12 8TA, UK
| | - Duncan Howie
- Sir William Dunn School of Pathology, University of Oxford, Oxford, OX1 3RE, UK
| | - Simon Davis
- Target Discovery Institute, Nuffield Department of Medicine, University of Oxford, Oxford, OX3 7FZ, UK
| | - Nicolas Prevot
- Developmental Immunology, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, OX3 9DS, UK
| | - Ioanna A Rota
- Developmental Immunology, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, OX3 9DS, UK
| | - Mary E Deadman
- Developmental Immunology, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, OX3 9DS, UK
| | - Benedikt M Kessler
- Target Discovery Institute, Nuffield Department of Medicine, University of Oxford, Oxford, OX3 7FZ, UK
| | - Roman Fischer
- Target Discovery Institute, Nuffield Department of Medicine, University of Oxford, Oxford, OX3 7FZ, UK
| | - Nikolaus S Trede
- Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, USA
| | - Erdinc Sezgin
- MRC Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, OX3 9DS, UK
- Science for Life Laboratory, Department of Women's and Children's Health, Karolinska Institutet, Solna, Sweden
| | - Rick M Maizels
- Wellcome Centre for Integrative Parasitology, Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, G12 8TA, UK
| | - Georg A Holländer
- Developmental Immunology, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, OX3 9DS, UK.
- Paediatric Immunology, Department of Biomedicine, University of Basel, Basel, Switzerland.
- Department of Biosystems Science and Engineering, ETH Zurich, Basel, Switzerland.
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Tao L, Yin Z, Ni T, Chu Z, Hao S, Wang Z, Sunagawa M, Wang H, Liu Y. The Ethyl Acetate Extract From Celastrus orbiculatus Promotes Apoptosis of Gastric Cancer Cells Through Mitochondria Regulation by PHB. Front Pharmacol 2021; 12:635467. [PMID: 34122065 PMCID: PMC8194300 DOI: 10.3389/fphar.2021.635467] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 05/17/2021] [Indexed: 12/16/2022] Open
Abstract
Objective: To investigate the effect of ethyl acetate extract from Celastrus orbiculatus (COE) on gastric cancer cell apoptosis and reveal its underlying molecular mechanism. In addition, it was aimed to stablish a theoretical basis for the clinical application of Celastrus orbiculatus in the gastric cancer treatment. Material and Methods: Western blot and RT-qPCR were used to detect mRNA and protein expression of PHB in gastric cancer and adjacent tissues. MTT method was used to detect the COE effect on the proliferation of AGS cells and to determine the 50% inhibitory concentration COE on these cells. COE effect on AGS apoptosis was evaluated by flow cytometry. Changes in apoptosis-related proteins expression in AGS cells were detected by western blot and changes in mitochondrial membrane potential were detected by JC-1 fluorescence staining. PHB expression was knocked down in AGS cells by lentiviral-mediated RNA interference. The COE antitumor effect was assessed in vivo using a subcutaneous transplantation tumor model in nude mice and in vivo fluorescence tracing technique in small animals. Results: The clinical samples analysis results showed that the PHB expression in gastric cancer samples was significantly higher than in corresponding adjacent tissues. MTT results showed that the AGS cell proliferation was significantly inhibited. RT-qPCR and western blot results showed that COE can significantly inhibit the PHB mRNA and protein expression, respectively. Flow cytometry analysis showed that COE was able to significantly promote AGS cell apoptosis. Western blot results also indicated that apoptosis-related protein expression changed significantly; BCL-2 expression significantly reduced while the Caspase-3 and Bax expression significantly increased after COE treatment. JC-1 fluorescence staining results showed that COE changed the mitochondrial membrane potential and activated the mitochondrial apoptosis pathway. Furthermore, in vivo experiments results demonstrated that the growth of subcutaneous transplanted tumor was significantly inhibited by the PHB knockdown and by the COE intragastric administration. Conclusion: COE can significantly promote apoptosis of human gastric cancer cells, which can be achieved by inhibiting PHB expression, thus altering the structure and function of mitochondria and activating the mitochondria apoptosis pathway. The antitumor effect of COE has also been proved in vivo.
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Affiliation(s)
- Lide Tao
- Nanjing University of Traditional Chinese Medicine, Nanjing, China.,Department of General Surgery, Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, China
| | - Zixin Yin
- Department of General Surgery, Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, China.,Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, China
| | - Tengyang Ni
- Department of General Surgery, Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, China.,Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, China
| | - Zewen Chu
- Department of General Surgery, Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, China.,Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, China
| | - Shihua Hao
- Department of General Surgery, Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, China.,Dalian Medical University, Dalian, China
| | - Zeyu Wang
- Department of General Surgery, Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, China.,Dalian Medical University, Dalian, China
| | - Masataka Sunagawa
- Department of Physiology, School of Medicine, Showa University, Tokyo, Japan
| | - Haibo Wang
- Department of General Surgery, Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, China.,Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, China
| | - Yanqing Liu
- Nanjing University of Traditional Chinese Medicine, Nanjing, China.,Department of General Surgery, Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, China.,Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, China
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Liput KP, Lepczyński A, Nawrocka A, Poławska E, Ogłuszka M, Jończy A, Grzybek W, Liput M, Szostak A, Urbański P, Roszczyk A, Pareek CS, Pierzchała M. Effects of Three-Month Administration of High-Saturated Fat Diet and High-Polyunsaturated Fat Diets with Different Linoleic Acid (LA, C18:2n-6) to α-Linolenic Acid (ALA, C18:3n-3) Ratio on the Mouse Liver Proteome. Nutrients 2021; 13:1678. [PMID: 34063343 PMCID: PMC8156955 DOI: 10.3390/nu13051678] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Accepted: 05/12/2021] [Indexed: 12/13/2022] Open
Abstract
The aim of the study was to evaluate the effect of different types of high-fat diets (HFDs) on the proteomic profile of mouse liver. The analysis included four dietary groups of mice fed a standard diet (STD group), a high-fat diet rich in SFAs (SFA group), and high-fat diets dominated by PUFAs with linoleic acid (LA, C18:2n-6) to α-linolenic acid (ALA, C18:3n-3) ratios of 14:1 (14:1 group) and 5:1 (5:1 group). After three months of diets, liver proteins were resolved by two-dimensional gel electrophoresis (2DE) using 17 cm non-linear 3-10 pH gradient strips. Protein spots with different expression were identified by MALDI-TOF/TOF. The expression of 13 liver proteins was changed in the SFA group compared to the STD group (↓: ALB, APOA1, IVD, MAT1A, OAT and PHB; ↑: ALDH1L1, UniProtKB-Q91V76, GALK1, GPD1, HMGCS2, KHK and TKFC). Eleven proteins with altered expression were recorded in the 14:1 group compared to the SFA group (↓: ARG1, FTL1, GPD1, HGD, HMGCS2 and MAT1A; ↑: APOA1, CA3, GLO1, HDHD3 and IVD). The expression of 11 proteins was altered in the 5:1 group compared to the SFA group (↓: ATP5F1B, FTL1, GALK1, HGD, HSPA9, HSPD1, PC and TKFC; ↑: ACAT2, CA3 and GSTP1). High-PUFA diets significantly affected the expression of proteins involved in, e.g., carbohydrate metabolism, and had varying effects on plasma total cholesterol and glucose levels. The outcomes of this study revealed crucial liver proteins affected by different high-fat diets.
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Affiliation(s)
- Kamila P. Liput
- Department of Genomics and Biodiversity, Institute of Genetics and Animal Biotechnology of the Polish Academy of Sciences, ul. Postepu 36A, Jastrzebiec, 05-552 Magdalenka, Poland; (K.P.L.); (A.N.); (E.P.); (M.O.); (A.S.); (P.U.); (A.R.)
- Department of Molecular Biology, Institute of Genetics and Animal Biotechnology of the Polish Academy of Sciences, ul. Postepu 36A, Jastrzebiec, 05-552 Magdalenka, Poland;
| | - Adam Lepczyński
- Department of Physiology, Cytobiology and Proteomics, West Pomeranian University of Technology, K. Janickiego 32 Str., 71-270 Szczecin, Poland;
| | - Agata Nawrocka
- Department of Genomics and Biodiversity, Institute of Genetics and Animal Biotechnology of the Polish Academy of Sciences, ul. Postepu 36A, Jastrzebiec, 05-552 Magdalenka, Poland; (K.P.L.); (A.N.); (E.P.); (M.O.); (A.S.); (P.U.); (A.R.)
- Department of Experimental Genomics, Institute of Genetics and Animal Biotechnology of the Polish Academy of Sciences, ul. Postepu 36A, Jastrzebiec, 05-552 Magdalenka, Poland
| | - Ewa Poławska
- Department of Genomics and Biodiversity, Institute of Genetics and Animal Biotechnology of the Polish Academy of Sciences, ul. Postepu 36A, Jastrzebiec, 05-552 Magdalenka, Poland; (K.P.L.); (A.N.); (E.P.); (M.O.); (A.S.); (P.U.); (A.R.)
| | - Magdalena Ogłuszka
- Department of Genomics and Biodiversity, Institute of Genetics and Animal Biotechnology of the Polish Academy of Sciences, ul. Postepu 36A, Jastrzebiec, 05-552 Magdalenka, Poland; (K.P.L.); (A.N.); (E.P.); (M.O.); (A.S.); (P.U.); (A.R.)
| | - Aneta Jończy
- Department of Molecular Biology, Institute of Genetics and Animal Biotechnology of the Polish Academy of Sciences, ul. Postepu 36A, Jastrzebiec, 05-552 Magdalenka, Poland;
| | - Weronika Grzybek
- Department of Biotechnology and Nutrigenomics, Institute of Genetics and Animal Biotechnology of the Polish Academy of Sciences, ul. Postepu 36A, Jastrzebiec, 05-552 Magdalenka, Poland;
| | - Michał Liput
- Department of Stem Cell Bioengineering, Mossakowski Medical Research Institute of the Polish Academy of Sciences, 02-106 Warsaw, Poland;
| | - Agnieszka Szostak
- Department of Genomics and Biodiversity, Institute of Genetics and Animal Biotechnology of the Polish Academy of Sciences, ul. Postepu 36A, Jastrzebiec, 05-552 Magdalenka, Poland; (K.P.L.); (A.N.); (E.P.); (M.O.); (A.S.); (P.U.); (A.R.)
| | - Paweł Urbański
- Department of Genomics and Biodiversity, Institute of Genetics and Animal Biotechnology of the Polish Academy of Sciences, ul. Postepu 36A, Jastrzebiec, 05-552 Magdalenka, Poland; (K.P.L.); (A.N.); (E.P.); (M.O.); (A.S.); (P.U.); (A.R.)
| | - Agnieszka Roszczyk
- Department of Genomics and Biodiversity, Institute of Genetics and Animal Biotechnology of the Polish Academy of Sciences, ul. Postepu 36A, Jastrzebiec, 05-552 Magdalenka, Poland; (K.P.L.); (A.N.); (E.P.); (M.O.); (A.S.); (P.U.); (A.R.)
| | - Chandra S. Pareek
- Institute of Veterinary Medicine, Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University, 87-100 Toruń, Poland;
- Division of Functional Genomics in Biological and Biomedical Research, Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University, 87-100 Torun, Poland
| | - Mariusz Pierzchała
- Department of Genomics and Biodiversity, Institute of Genetics and Animal Biotechnology of the Polish Academy of Sciences, ul. Postepu 36A, Jastrzebiec, 05-552 Magdalenka, Poland; (K.P.L.); (A.N.); (E.P.); (M.O.); (A.S.); (P.U.); (A.R.)
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Wang K, Qi Y, Wang X, Liu Y, Zhao M, Zhou D, Zhang Y, Wang Y, Yu R, Zhou X. GOLPH3 promotes glioma progression by enhancing PHB2-mediated autophagy. Am J Cancer Res 2021; 11:2106-2123. [PMID: 34094672 PMCID: PMC8167689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Accepted: 03/17/2021] [Indexed: 06/12/2023] Open
Abstract
Due to the hypoxia and nutrient deficiency microenvironment, malignant glioma exhibits high autophagy activity and autophagy plays a significant role in the occurrence and development of glioma. However, the potential molecular mechanism of autophagy in glioma remains unknown. In this study, we demonstrated that Golgi phosphorylation protein 3 (GOLPH3), a highly conserved protein basically concentrates in the trans-Golgi network, promoted glioma autophagy. Inhibiting autophagy by using chloroquine suppressed the stimulating effect of GOLPH3 on glioma malignant development both in vitro and in vivo. Mechanistically, GOLPH3 interacted with and recruited prohibitin-2 (PHB2), an autophagy receptor of mitochondrion, and LC3-II. PHB2 promoted cell autophagy and down-regulation of PHB2 abolished the effect of GOLPH3 on autophagy. On the side, the relative mRNA and protein levels of GOLPH3 and PHB2 were positively associated with each other and both also correlated with autophagy in glioma tissues. Together, our results revealed that GOLPH3 promotes glioma progression by enhancing PHB2-mediated autophagy and inhibiting autophagy may benefit glioma patients with GOLPH3 high level. The novel GOLPH3-PHB2-autophagy axis maybe a potential and prospective therapeutic target for gliomas.
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Affiliation(s)
- Kai Wang
- Institute of Nervous System Diseases, Xuzhou Medical UniversityXuzhou, Jiangsu, China
- Department of Neurosurgery, The Affiliated Hospital of Xuzhou Medical UniversityXuzhou, Jiangsu, China
- The Graduate School, Xuzhou Medical UniversityXuzhou, Jiangsu, China
| | - Yanhua Qi
- Institute of Nervous System Diseases, Xuzhou Medical UniversityXuzhou, Jiangsu, China
- Department of Neurosurgery, The Affiliated Hospital of Xuzhou Medical UniversityXuzhou, Jiangsu, China
- The Graduate School, Xuzhou Medical UniversityXuzhou, Jiangsu, China
| | - Xu Wang
- Institute of Nervous System Diseases, Xuzhou Medical UniversityXuzhou, Jiangsu, China
- Department of Neurosurgery, The Affiliated Hospital of Xuzhou Medical UniversityXuzhou, Jiangsu, China
- The Graduate School, Xuzhou Medical UniversityXuzhou, Jiangsu, China
| | - Yushuai Liu
- Institute of Nervous System Diseases, Xuzhou Medical UniversityXuzhou, Jiangsu, China
- Department of Neurosurgery, The Affiliated Hospital of Xuzhou Medical UniversityXuzhou, Jiangsu, China
- The Graduate School, Xuzhou Medical UniversityXuzhou, Jiangsu, China
| | - Min Zhao
- Institute of Nervous System Diseases, Xuzhou Medical UniversityXuzhou, Jiangsu, China
- Department of Neurosurgery, The Affiliated Hospital of Xuzhou Medical UniversityXuzhou, Jiangsu, China
- The Graduate School, Xuzhou Medical UniversityXuzhou, Jiangsu, China
| | - Ding Zhou
- Institute of Nervous System Diseases, Xuzhou Medical UniversityXuzhou, Jiangsu, China
- Department of Neurosurgery, The Affiliated Hospital of Xuzhou Medical UniversityXuzhou, Jiangsu, China
- The Graduate School, Xuzhou Medical UniversityXuzhou, Jiangsu, China
| | - Yu Zhang
- Institute of Nervous System Diseases, Xuzhou Medical UniversityXuzhou, Jiangsu, China
- Department of Neurosurgery, The Affiliated Hospital of Xuzhou Medical UniversityXuzhou, Jiangsu, China
- The Graduate School, Xuzhou Medical UniversityXuzhou, Jiangsu, China
| | - Yan Wang
- Institute of Nervous System Diseases, Xuzhou Medical UniversityXuzhou, Jiangsu, China
- Department of Neurosurgery, The Affiliated Hospital of Xuzhou Medical UniversityXuzhou, Jiangsu, China
- The Graduate School, Xuzhou Medical UniversityXuzhou, Jiangsu, China
| | - Rutong Yu
- Institute of Nervous System Diseases, Xuzhou Medical UniversityXuzhou, Jiangsu, China
- Department of Neurosurgery, The Affiliated Hospital of Xuzhou Medical UniversityXuzhou, Jiangsu, China
| | - Xiuping Zhou
- Institute of Nervous System Diseases, Xuzhou Medical UniversityXuzhou, Jiangsu, China
- Department of Neurosurgery, The Affiliated Hospital of Xuzhou Medical UniversityXuzhou, Jiangsu, China
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Lema A S, Klemenčič M, Völlmy F, Altelaar M, Funk C. The Role of Pseudo-Orthocaspase (SyOC) of Synechocystis sp. PCC 6803 in Attenuating the Effect of Oxidative Stress. Front Microbiol 2021; 12:634366. [PMID: 33613507 PMCID: PMC7889975 DOI: 10.3389/fmicb.2021.634366] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Accepted: 01/11/2021] [Indexed: 11/13/2022] Open
Abstract
Caspases are proteases, best known for their involvement in the execution of apoptosis-a subtype of programmed cell death, which occurs only in animals. These proteases are composed of two structural building blocks: a proteolytically active p20 domain and a regulatory p10 domain. Although structural homologs appear in representatives of all other organisms, their functional homology, i.e., cell death depending on their proteolytical activity, is still much disputed. Additionally, pseudo-caspases and pseudo-metacaspases, in which the catalytic histidine-cysteine dyad is substituted with non-proteolytic amino acid residues, were shown to be involved in cell death programs. Here, we present the involvement of a pseudo-orthocaspase (SyOC), a prokaryotic caspase-homolog lacking the p10 domain, in oxidative stress in the model cyanobacterium Synechocystis sp. PCC 6803. To study the in vivo impact of this pseudo-protease during oxidative stress its gene expression during exposure to H2O2 was monitored by RT-qPCR. Furthermore, a knock-out mutant lacking the pseudo-orthocaspase gene was designed, and its survival and growth rates were compared to wild type cells as well as its proteome. Deletion of SyOC led to cells with a higher tolerance toward oxidative stress, suggesting that this protein may be involved in a pro-death pathway.
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Affiliation(s)
- Saul Lema A
- Department of Chemistry, Umeå University, Umeå, Sweden
| | | | - Franziska Völlmy
- Biomolecular Mass Spectrometry and Proteomics, Bijvoet Center for Biomolecular Research, Utrecht Institute for Pharmaceutical Sciences, University of Utrecht, Utrecht, Netherlands.,Netherlands Proteomics Centre, Utrecht, Netherlands
| | - Maarten Altelaar
- Biomolecular Mass Spectrometry and Proteomics, Bijvoet Center for Biomolecular Research, Utrecht Institute for Pharmaceutical Sciences, University of Utrecht, Utrecht, Netherlands.,Netherlands Proteomics Centre, Utrecht, Netherlands
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Peptidylarginine Deiminase Inhibitor Application, Using Cl-Amidine, PAD2, PAD3 and PAD4 Isozyme-Specific Inhibitors in Pancreatic Cancer Cells, Reveals Roles for PAD2 and PAD3 in Cancer Invasion and Modulation of Extracellular Vesicle Signatures. Int J Mol Sci 2021; 22:ijms22031396. [PMID: 33573274 PMCID: PMC7866560 DOI: 10.3390/ijms22031396] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Revised: 01/20/2021] [Accepted: 01/27/2021] [Indexed: 02/06/2023] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is one of the most aggressive malignancies with limited survival rate. Roles for peptidylarginine deiminases (PADs) have been studied in relation to a range of cancers with roles in epigenetic regulation (including histone modification and microRNA regulation), cancer invasion, and extracellular vesicle (EV) release. Hitherto though, knowledge on PADs in PDAC is limited. In the current study, two PDAC cell lines (Panc-1 and MiaPaCa-2) were treated with pan-PAD inhibitor Cl-amidine as well as PAD2, PAD3, and PAD4 isozyme-specific inhibitors. Effects were assessed on changes in EV signatures, including EV microRNA cargo (miR-21, miR-126, and miR-221), on changes in cellular protein expression relevant for pancreatic cancer progression and invasion (moesin), for mitochondrial housekeeping (prohibitin, PHB), and gene regulation (deiminated histone H3, citH3). The two pancreatic cancer cell lines were found to predominantly express PAD2 and PAD3, which were furthermore expressed at higher levels in Panc-1, compared with MiaPaCa-2 cells. PAD2 isozyme-specific inhibitor had the strongest effects on reducing Panc-1 cell invasion capability, which was accompanied by an increase in moesin expression, which in pancreatic cancer is found to be reduced and associated with pancreatic cancer aggressiveness. Some reduction, but not significant, was also found on PHB levels while effects on histone H3 deimination were variable. EV signatures were modulated in response to PAD inhibitor treatment, with the strongest effects observed for PAD2 inhibitor, followed by PAD3 inhibitor, showing significant reduction in pro-oncogenic EV microRNA cargo (miR-21, miR-221) and increase in anti-oncogenic microRNA cargo (miR-126). While PAD2 inhibitor, followed by PAD3 inhibitor, had most effects on reducing cancer cell invasion, elevating moesin expression, and modulating EV signatures, PAD4 inhibitor had negligible effects and pan-PAD inhibitor Cl-amidine was also less effective. Compared with MiaPaCa-2 cells, stronger modulatory effects for the PAD inhibitors were observed in Panc-1 cells, which importantly also showed strong response to PAD3 inhibitor, correlating with previous observations that Panc-1 cells display neuronal/stem-like properties. Our findings report novel PAD isozyme regulatory roles in PDAC, highlighting roles for PAD isozyme-specific treatment, depending on cancer type and cancer subtypes, including in PDAC.
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Park N, Marquez J, Garcia MVF, Shimizu I, Lee SR, Kim HK, Han J. Phosphorylation in Novel Mitochondrial Creatine Kinase Tyrosine Residues Render Cardioprotection against Hypoxia/Reoxygenation Injury. J Lipid Atheroscler 2021; 10:223-239. [PMID: 34095014 PMCID: PMC8159762 DOI: 10.12997/jla.2021.10.2.223] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Revised: 12/18/2020] [Accepted: 01/06/2021] [Indexed: 11/09/2022] Open
Abstract
Objective Ischemic cardiomyopathy (ICM) is the leading cause of heart failure. Proteomic and genomic studies have demonstrated ischemic preconditioning (IPC) can assert cardioprotection against ICM through mitochondrial function regulation. Considering IPC is conducted in a relatively brief period, regulation of protein expression also occurs very rapidly, highlighting the importance of protein function modulation by post-translational modifications. This study aimed to identify and analyze novel phosphorylated mitochondrial proteins that can be harnessed for therapeutic strategies for preventing ischemia/reperfusion (I/R) injury. Methods Sprague-Dawley rat hearts were used in an ex vivo Langendorff system to simulate normal perfusion, I/R, and IPC condition, after which the samples were prepared for phosphoproteomic analysis. Employing human cardiomyocyte AC16 cells, we investigated the cardioprotective role of CKMT2 through overexpression and how site-directed mutagenesis of putative CKMT2 phosphorylation sites (Y159A, Y255A, and Y368A) can affect cardioprotection by measuring CKMT2 protein activity, mitochondrial function and protein expression changes. Results The phosphoproteomic analysis revealed dephosphorylation of mitochondrial creatine kinase (CKMT2) during ischemia and I/R, while preserving its phosphorylated state during IPC. CKMT2 overexpression conferred cardioprotection against hypoxia/reoxygenation (H/R) by increasing cell viability and mitochondrial adenosine triphosphate level, preserving mitochondrial membrane potential, and reduced reactive oxygen species (ROS) generation, while phosphomutations, especially in Y368, nullified cardioprotection by significantly reducing cell viability and increasing ROS production during H/R. CKMT2 overexpression increased mitochondrial function by mediating the proliferator-activated receptor γ coactivator-1α/estrogen-related receptor-α pathway, and these effects were mostly inhibited by Y368A mutation. Conclusion These results suggest that regulation of quantitative expression and phosphorylation site Y368 of CKMT2 offers a unique mechanism in future ICM therapeutics.
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Affiliation(s)
- Nammi Park
- Cardiovascular and Metabolic Disease Center, Smart Marine Therapeutics Center, Inje University, Busan, Korea
| | - Jubert Marquez
- Cardiovascular and Metabolic Disease Center, Smart Marine Therapeutics Center, Inje University, Busan, Korea.,Department of Health Sciences and Technology, Graduate School of Inje University, Busan, Korea
| | - Maria Victoria Faith Garcia
- Cardiovascular and Metabolic Disease Center, Smart Marine Therapeutics Center, Inje University, Busan, Korea.,Department of Health Sciences and Technology, Graduate School of Inje University, Busan, Korea
| | - Ippei Shimizu
- Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Sung Ryul Lee
- Cardiovascular and Metabolic Disease Center, Smart Marine Therapeutics Center, Inje University, Busan, Korea
| | - Hyoung Kyu Kim
- Cardiovascular and Metabolic Disease Center, Smart Marine Therapeutics Center, Inje University, Busan, Korea.,Department of Health Sciences and Technology, Graduate School of Inje University, Busan, Korea.,Department of Physiology, College of Medicine, Inje University, Busan, Korea
| | - Jin Han
- Cardiovascular and Metabolic Disease Center, Smart Marine Therapeutics Center, Inje University, Busan, Korea.,Department of Health Sciences and Technology, Graduate School of Inje University, Busan, Korea.,Department of Physiology, College of Medicine, Inje University, Busan, Korea
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50
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Saura-Esteller J, Sánchez-Vera I, Núñez-Vázquez S, Jabalquinto-Carrasco J, Cosialls AM, Mendive-Tapia L, Kukhtar D, Martínez-Bueno MD, Lavilla R, Cerón J, Artal-Sanz M, Pons G, Iglesias-Serret D, Gil J. Fluorizoline-induced apoptosis requires prohibitins in nematodes and human cells. Apoptosis 2021; 26:83-95. [PMID: 33387147 DOI: 10.1007/s10495-020-01651-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/11/2020] [Indexed: 02/06/2023]
Abstract
We previously showed that fluorizoline, a fluorinated thiazoline compound, binds to both subunits of the mitochondrial prohibitin (PHB) complex, PHB1 and PHB2, being the expression of these proteins required for fluorizoline-induced apoptosis in mouse embryonic fibroblasts. To investigate the conservation of this apoptotic mechanism, we studied the effect of PHB downregulation on fluorizoline activity on two human cell lines, HEK293T and U2OS. Then, we asked whether PHBs mediate the effect of fluorizoline in a multicellular organism. Interestingly, reduced levels of PHBs in the human cells impaired the induction of apoptosis by fluorizoline. We observed that fluorizoline has a detrimental dose-dependent effect on the development and survival of the nematode model Caenorhabditis elegans. Besides, such effects of fluorizoline treatment in living nematodes were absent in PHB mutants. Finally, we further explored the apoptotic pathway triggered by fluorizoline in human cell lines. We found that the BH3-only proteins NOXA, BIM and PUMA participate in fluorizoline-induced apoptosis and that the induction of NOXA and PUMA is dependent on PHB expression.
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Affiliation(s)
- José Saura-Esteller
- Departament de Ciències Fisiològiques, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona-IDIBELL (Institut d'Investigació Biomèdica de Bellvitge), L'Hospitalet de Llobregat, Barcelona, Spain
| | - Ismael Sánchez-Vera
- Departament de Ciències Fisiològiques, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona-IDIBELL (Institut d'Investigació Biomèdica de Bellvitge), L'Hospitalet de Llobregat, Barcelona, Spain
| | - Sonia Núñez-Vázquez
- Departament de Ciències Fisiològiques, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona-IDIBELL (Institut d'Investigació Biomèdica de Bellvitge), L'Hospitalet de Llobregat, Barcelona, Spain
| | - Judith Jabalquinto-Carrasco
- Departament de Ciències Fisiològiques, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona-IDIBELL (Institut d'Investigació Biomèdica de Bellvitge), L'Hospitalet de Llobregat, Barcelona, Spain
| | - Ana M Cosialls
- Departament de Ciències Fisiològiques, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona-IDIBELL (Institut d'Investigació Biomèdica de Bellvitge), L'Hospitalet de Llobregat, Barcelona, Spain
| | - Lorena Mendive-Tapia
- Laboratory of Medical Chemistry, Faculty of Pharmacy and Food Sciences, Institute of Medicine (IBUB), University of Barcelona, Barcelona, Spain
| | - Dmytro Kukhtar
- Modeling Human Diseases in C. Elegans Group. Genes, Disease and Therapy Program, IDIBELL (Institut d'Investigació Biomèdica de Bellvitge), L'Hospitalet de Llobregat, Barcelona, Spain
| | - Manuel D Martínez-Bueno
- Andalusian Center for Developmental Biology, Consejo Superior de Investigaciones Científicas/Junta de Andalucía, Universidad Pablo de Olavide, Seville, Spain.,Department of Molecular Biology and Biochemical Engineering, Universidad Pablo de Olavide, Seville, Spain
| | - Rodolfo Lavilla
- Laboratory of Medical Chemistry, Faculty of Pharmacy and Food Sciences, Institute of Medicine (IBUB), University of Barcelona, Barcelona, Spain
| | - Julián Cerón
- Modeling Human Diseases in C. Elegans Group. Genes, Disease and Therapy Program, IDIBELL (Institut d'Investigació Biomèdica de Bellvitge), L'Hospitalet de Llobregat, Barcelona, Spain
| | - Marta Artal-Sanz
- Andalusian Center for Developmental Biology, Consejo Superior de Investigaciones Científicas/Junta de Andalucía, Universidad Pablo de Olavide, Seville, Spain.,Department of Molecular Biology and Biochemical Engineering, Universidad Pablo de Olavide, Seville, Spain
| | - Gabriel Pons
- Departament de Ciències Fisiològiques, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona-IDIBELL (Institut d'Investigació Biomèdica de Bellvitge), L'Hospitalet de Llobregat, Barcelona, Spain
| | - Daniel Iglesias-Serret
- Departament de Ciències Fisiològiques, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona-IDIBELL (Institut d'Investigació Biomèdica de Bellvitge), L'Hospitalet de Llobregat, Barcelona, Spain.,Facultat de Medicina, Universitat de Vic-Universitat Central de Catalunya (UVic-UCC), Vic, Barcelona, Spain
| | - Joan Gil
- Departament de Ciències Fisiològiques, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona-IDIBELL (Institut d'Investigació Biomèdica de Bellvitge), L'Hospitalet de Llobregat, Barcelona, Spain.
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