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Dong Z, Hou X, Wang X, Shen Z, Pang H, Chen L, Yin Z, Ren F, Li W, Ge Y, Ning H, Hu D. Proteomic Analysis of the Mitochondrial Responses in P19 Embryonic Stem Cells Exposed to Florfenicol. TOXICS 2023; 11:992. [PMID: 38133393 PMCID: PMC10747307 DOI: 10.3390/toxics11120992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 11/29/2023] [Accepted: 12/04/2023] [Indexed: 12/23/2023]
Abstract
Florfenicol (FLO) has been shown to elicit diverse toxic effects in plants, insects, and mammals. Previously, our investigations revealed that FLO induced abnormal cardiac development and early embryonic mortality in chicken embryos. However, the effect of FLO on mitochondrial responses in stem cells remains unclear. In this study, we show that FLO significantly diminishes proliferation viability and obstructs the directed differentiation of P19 stem cells (P19SCs) into cardiomyocytes. Proteomic analysis revealed 148 differentially expressed proteins in response to FLO. Functional analysis has pinpointed FLO interference with biological processes associated with oxidative phosphorylation within the mitochondria. In alignment with the results of proteomic analysis, we confirmed that FLO inhibits the expression of both nuclear DNA-encoded and mitochondrial DNA-encoded subunits of the electron transport chain. Subsequent experiments demonstrated that FLO disrupts mitochondrial dynamics and induces the mitochondrial unfolded protein response to maintain mitochondrial homeostasis. These findings collectively highlight the significance of mitochondrial dynamics and the mitochondrial unfolded protein response to mediate the decreased proliferation viability and directed differentiation potential in P19SCs treated with FLO. In conclusion, this study provides a comprehensive overview of mitochondrial responses to FLO-induced cytotoxicity and enhances our understandings of the molecular mechanisms underlying FLO-induced embryonic toxicity.
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Affiliation(s)
- Zhihua Dong
- College of Animal Science and Technology, Henan Institute of Science and Technology, Xinxiang 453003, China; (Z.D.); (X.H.); (X.W.); (Z.S.); (H.P.); (L.C.); (Z.Y.); (F.R.); (Y.G.)
| | - Xueke Hou
- College of Animal Science and Technology, Henan Institute of Science and Technology, Xinxiang 453003, China; (Z.D.); (X.H.); (X.W.); (Z.S.); (H.P.); (L.C.); (Z.Y.); (F.R.); (Y.G.)
| | - Xueying Wang
- College of Animal Science and Technology, Henan Institute of Science and Technology, Xinxiang 453003, China; (Z.D.); (X.H.); (X.W.); (Z.S.); (H.P.); (L.C.); (Z.Y.); (F.R.); (Y.G.)
| | - Zihui Shen
- College of Animal Science and Technology, Henan Institute of Science and Technology, Xinxiang 453003, China; (Z.D.); (X.H.); (X.W.); (Z.S.); (H.P.); (L.C.); (Z.Y.); (F.R.); (Y.G.)
| | - Huiqing Pang
- College of Animal Science and Technology, Henan Institute of Science and Technology, Xinxiang 453003, China; (Z.D.); (X.H.); (X.W.); (Z.S.); (H.P.); (L.C.); (Z.Y.); (F.R.); (Y.G.)
| | - Lingli Chen
- College of Animal Science and Technology, Henan Institute of Science and Technology, Xinxiang 453003, China; (Z.D.); (X.H.); (X.W.); (Z.S.); (H.P.); (L.C.); (Z.Y.); (F.R.); (Y.G.)
| | - Zhihong Yin
- College of Animal Science and Technology, Henan Institute of Science and Technology, Xinxiang 453003, China; (Z.D.); (X.H.); (X.W.); (Z.S.); (H.P.); (L.C.); (Z.Y.); (F.R.); (Y.G.)
| | - Fei Ren
- College of Animal Science and Technology, Henan Institute of Science and Technology, Xinxiang 453003, China; (Z.D.); (X.H.); (X.W.); (Z.S.); (H.P.); (L.C.); (Z.Y.); (F.R.); (Y.G.)
| | - Weiguo Li
- Postdoctoral Research Station in Biological Sciences, Henan Normal University, Xinxiang 453003, China;
| | - Yaming Ge
- College of Animal Science and Technology, Henan Institute of Science and Technology, Xinxiang 453003, China; (Z.D.); (X.H.); (X.W.); (Z.S.); (H.P.); (L.C.); (Z.Y.); (F.R.); (Y.G.)
| | - Hongmei Ning
- College of Animal Science and Technology, Henan Institute of Science and Technology, Xinxiang 453003, China; (Z.D.); (X.H.); (X.W.); (Z.S.); (H.P.); (L.C.); (Z.Y.); (F.R.); (Y.G.)
| | - Dongfang Hu
- College of Animal Science and Technology, Henan Institute of Science and Technology, Xinxiang 453003, China; (Z.D.); (X.H.); (X.W.); (Z.S.); (H.P.); (L.C.); (Z.Y.); (F.R.); (Y.G.)
- Postdoctoral Research Station in Biological Sciences, Henan Normal University, Xinxiang 453003, China;
- Postdoctoral Research and Development Base, Henan Institute of Science and Technology, Xinxiang 453003, China
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Shin WH, Chung KC. Tollip negatively regulates mitophagy by promoting the mitochondrial processing and cytoplasmic release of PINK1. BMB Rep 2022. [PMID: 35725015 PMCID: PMC9623242 DOI: 10.5483/bmbrep.2022.55.10.082] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
PTEN-induced putative kinase 1 (PINK1) is a serine/threonine kinase that phosphorylates several substrates and exerts neuroprotective effects against stress-induced apoptotic cell death. Mutations in PINK1 have been linked to autosomal recessive forms of Parkinson’s disease (PD). Mitophagy is a type of autophagy that selectively promotes mitochondrial turnover and prevents the accumulation of dysfunctional mitochondria to maintain cellular homeostasis. Toll-interacting protein (Tollip) was initially identified as a negative regulator of IL-1β receptor signaling, suppressing inflammatory TLR signaling cascades. Recently, Tollip has been reported to play a role in autophagy and is implicated in neurodegeneration. In this study, we determined whether Tollip was functionally linked to PINK1-mediated mitophagy. Our results demonstrated that Tollip promoted the mitochondrial processing of PINK1 and altered the localization of PINK1, predominantly to the cytosol. This action was attributed to increased binding of PINK1 to mitochondrial processing peptidase β (MPPβ) and the subsequent increase in MPPβ-mediated mitochondrial PINK1 cleavage. Furthermore, Tollip suppressed mitophagy following carbonyl cyanide m-chlorophenylhydrazone-induced mitochondrial dysfunction. These findings suggest that Tollip inhibits mitophagy via the PINK1/parkin pathway upon mitochondrial damage, leading to the blockade of PINK1-mediated neuroprotection.
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Affiliation(s)
- Woo Hyun Shin
- Department of Systems Biology, College of Life Science and Biotechnology, Yonsei University, Seoul 03722, Korea
| | - Kwang Chul Chung
- Department of Systems Biology, College of Life Science and Biotechnology, Yonsei University, Seoul 03722, Korea
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Moon B, Park M, Cho SH, Kim KM, Seo HR, Kim JH, Kim JA. Synergistic antitumor activity of sorafenib and MG149 in hepatocellular carcinoma cells. BMB Rep 2022; 55. [PMID: 35880431 PMCID: PMC9623241 DOI: 10.5483/bmbrep.2022.55.10.037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Advanced hepatocellular carcinoma (HCC) is among the most challenging cancers to overcome, and there is a need for better therapeutic strategies. Among the different cancer drugs that have been used in clinics, sorafenib is considered the standard first-line drug for advanced HCC. Here, to identify a chemical compound displaying a synergistic effect with sorafenib in HCC, we screened a focused chemical library and found that MG149, a histone acetyltransferase inhibitor targeting the MYST family, exhibited the most synergistic anticancer effect with sorafenib on HCC cells. The combination of sorafenib and MG149 exerted a synergistic anti-proliferation effect on HCC cells by inducing apoptotic cell death. We revealed that cotreatment with sorafenib and MG149 aggravated endoplasmic reticulum (ER) stress to promote the death of HCC cells rather than adaptive cell survival. In addition, combined treatment with sorafenib and MG149 significantly increased the intracellular levels of unfolded proteins and reactive oxygen species, which upregulated ER stress. Collectively, these results suggest that MG149 has the potential to improve the efficacy of sorafenib in advanced HCC via the upregulation of cytotoxic ER stress. [BMB Reports 2022; 55(10): 506-511].
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Affiliation(s)
- Byul Moon
- Department of Functional Genomics, KRIBB School of Bioscience, University of Science and Technology (UST), Daejeon 34113, Korea,Personalized Genomic Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Korea
| | - Mijin Park
- Department of Functional Genomics, KRIBB School of Bioscience, University of Science and Technology (UST), Daejeon 34113, Korea,Personalized Genomic Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Korea
| | - Seung-Hyun Cho
- Department of Functional Genomics, KRIBB School of Bioscience, University of Science and Technology (UST), Daejeon 34113, Korea,Disease Target Structure Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Korea
| | - Kang Mo Kim
- Department of Gastroenterology, Asan Liver Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea
| | - Haeng Ran Seo
- Advanced Biomedical Research Laboratory, Institut Pasteur Korea, Seongnam 13488, Korea
| | - Jeong-Hoon Kim
- Department of Functional Genomics, KRIBB School of Bioscience, University of Science and Technology (UST), Daejeon 34113, Korea,Disease Target Structure Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Korea,Corresponding authors. Jeong-Hoon Kim, Tel: +82-42-860-4264; Fax: +82-42-860-4598; E-mail: ; Jung-Ae Kim, Tel: +82-42-879-8129; Fax: +82-42-879-8119; E-mail: jungaekim@ kribb.re.kr
| | - Jung-Ae Kim
- Department of Functional Genomics, KRIBB School of Bioscience, University of Science and Technology (UST), Daejeon 34113, Korea,Personalized Genomic Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Korea,Corresponding authors. Jeong-Hoon Kim, Tel: +82-42-860-4264; Fax: +82-42-860-4598; E-mail: ; Jung-Ae Kim, Tel: +82-42-879-8129; Fax: +82-42-879-8119; E-mail: jungaekim@ kribb.re.kr
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Díaz-Ruiz M, Urbina A, Llor N, Bosch J, Amat M, Maseras F. Origin of the selectivity in the ring-closing metathesis step of the synthesis of (−)-callyspongiolide: Formation of fourteen-versus eight-membered rings. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.133016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Fakhri S, Abdian S, Moradi SZ, Delgadillo BE, Fimognari C, Bishayee A. Marine Compounds, Mitochondria, and Malignancy: A Therapeutic Nexus. Mar Drugs 2022; 20:md20100625. [PMID: 36286449 PMCID: PMC9604966 DOI: 10.3390/md20100625] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 09/27/2022] [Accepted: 09/27/2022] [Indexed: 11/06/2022] Open
Abstract
The marine environment is important yet generally underexplored. It contains new sources of functional constituents that can affect various pathways in food processing, storage, and fortification. Bioactive secondary metabolites produced by marine microorganisms may have significant potential applications for humans. Various components isolated from disparate marine microorganisms, including fungi, microalgae, bacteria, and myxomycetes, showed considerable biological effects, such as anticancer, antioxidant, antiviral, antibacterial, and neuroprotective activities. Growing studies are revealing that potential anticancer effects of marine agents could be achieved through the modulation of several organelles. Mitochondria are known organelles that influence growth, differentiation, and death of cells via influencing the biosynthetic, bioenergetic, and various signaling pathways related to oxidative stress and cellular metabolism. Consequently, mitochondria play an essential role in tumorigenesis and cancer treatments by adapting to alterations in environmental and cellular conditions. The growing interest in marine-derived anticancer agents, combined with the development and progression of novel technology in the extraction and cultures of marine life, led to revelations of new compounds with meaningful pharmacological applications. This is the first critical review on marine-derived anticancer agents that have the potential for targeting mitochondrial function during tumorigenesis. This study aims to provide promising strategies in cancer prevention and treatment.
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Affiliation(s)
- Sajad Fakhri
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah 6734667149, Iran
| | - Sadaf Abdian
- Student Research Committee, Kermanshah University of Medical Sciences, Kermanshah 6714415153, Iran
| | - Seyed Zachariah Moradi
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah 6734667149, Iran
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah 6734667149, Iran
| | - Blake E. Delgadillo
- College of Osteopathic Medicine, Lake Erie College of Osteopathic Medicine, Bradenton, FL 34211, USA
| | - Carmela Fimognari
- Department for Life Quality Studies, University of Bologna, 47921 Rimini, Italy
| | - Anupam Bishayee
- College of Osteopathic Medicine, Lake Erie College of Osteopathic Medicine, Bradenton, FL 34211, USA
- Correspondence: or
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Abstract
MitoNEET, a mitochondrial outer membrane protein containing the Asn-Glu-Glu-Thr (NEET) sequence, controls the formation of intermitochondrial junctions and confers autophagy resistance. Moreover, mitoNEET as a mitochondrial substrate undergoes ubiquitination by activated Parkin during the initiation of mitophagy. Therefore, mitoNEET is linked to the regulation of autophagy and mitophagy. Mitophagy is the selective removal of the damaged or unnecessary mitochondria, which is crucial to sustaining mitochondrial quality control. In numerous human diseases, the accumulation of damaged mitochondria by impaired mitophagy has been observed. However, the therapeutic strategy targeting of mitoNEET as a mitophagy-enhancing mediator requires further research. Herein, we confirmed that mitophagy is indeed activated by mitoNEET inhibition. CCCP (carbonyl cyanide m-chlorophenyl hydrazone), which leads to mitochondrial depolarization, induces mitochondrial dysfunction and superoxide production. This, in turn, contributes to the induction of mitophagy; mitoNEET protein levels were initially increased before an increase in LC3-Ⅱ protein following CCCP treatment. Pharmacological inhibition of mitoNEET using mitoNEET Ligand-1 (NL-1) promoted accumulation of Pink1 and Parkin, which are mitophagy-associated proteins, and activation of mitochondria–lysosome crosstalk, in comparison to CCCP alone. Inhibition of mitoNEET using NL-1, or mitoNEET shRNA transfected into RAW264.7 cells, abrogated CCCP-induced ROS and mitochondrial cell death; additionally, it activated the expression of PGC-1α and SOD2, regulators of oxidative metabolism. In particular, the increase in PGC-1α, which is a major regulator of mitochondrial biogenesis, promotes mitochondrial quality control. These results indicated that mitoNEET is a potential therapeutic target in numerous human diseases to enhance mitophagy and protect cells by maintaining a network of healthy mitochondria.
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Affiliation(s)
- Seunghee Lee
- School of Biological Sciences, College of Natural Sciences, University of Ulsan, Ulsan 44610, Korea
| | - Sangguk Lee
- School of Biological Sciences, College of Natural Sciences, University of Ulsan, Ulsan 44610, Korea
| | - Seon-Jin Lee
- Environmental Disease Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Korea
| | - Su Wol Chung
- School of Biological Sciences, College of Natural Sciences, University of Ulsan, Ulsan 44610, Korea
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Ha J, Park SB. Callyspongiolide kills cells by inducing mitochondrial dysfunction via cellular iron depletion. Commun Biol 2021; 4:1123. [PMID: 34556786 PMCID: PMC8460830 DOI: 10.1038/s42003-021-02643-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Accepted: 09/01/2021] [Indexed: 12/15/2022] Open
Abstract
The highly cytotoxic marine natural product callyspongiolide holds great promise as a warhead of antibody-drug conjugate in cancer therapeutics; however, the mechanism underlying its cytotoxicity remains unclear. To elucidate how callyspongiolide kills cells, we employed label-free target identification with thermal stability-shift-based fluorescence difference in two-dimensional (2-D) gel electrophoresis (TS-FITGE), which allowed observation of a unique phenomenon of protein-spot separation on 2-D gels upon treatment with callyspongiolide at increasing temperatures. During our exploration of what proteins were associated with this phenomenon as well as why it happens, we found that callyspongiolide induces mitochondrial/lysosomal dysfunction and autophagy inhibition. Moreover, molecular biology studies revealed that callyspongiolide causes lysosomal dysfunction, which induces cellular iron depletion and leads to mitochondrial dysfunction and subsequent cytotoxicity. Notably, these effects were rescued through iron supplementation. Although our approach was unable to reveal the direct protein targets of callyspongiolide, unique phenomena observed only by TS-FITGE provided critical insight into the mechanism of action of callyspongiolide and specifically its cytotoxic activity via induction of mitochondrial dysfunction through cellular iron depletion caused by lysosomal deacidification, which occurred independent of known programmed cell death pathways. In order to elucidate how callyspongiolide, a potent cytotoxic marine natural product, kills human lung cancer cells, Ha and Park employed TS-FITGE technique, a label-free target identification method with thermal stability-shift-based fluorescence difference in 2-D gel electrophoresis, allowing them to observe protein-spot separation upon treatment in increasing temperatures. They found that callyspongiolide induces lysosomal dysfunction followed by mitochondrial dysfunction as well as iron depletion, which sheds light on the mechanism of action of callyspongiolide.
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Affiliation(s)
- Jaeyoung Ha
- Department of Biophysics and Chemical Biology, Seoul National University, Seoul, 08826, Korea
| | - Seung Bum Park
- Department of Biophysics and Chemical Biology, Seoul National University, Seoul, 08826, Korea. .,CRI Center for Chemical Proteomics, Department of Chemistry, Seoul National University, Seoul, 08826, Korea. .,SPARK Biopharma, Inc, Seoul, 08791, Korea.
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