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  1. Article ; Online: Varicella zoster virus glycoprotein E facilitates PINK1/Parkin-mediated mitophagy to evade STING and MAVS-mediated antiviral innate immunity.

    Oh, Soo-Jin / Yu, Je-Wook / Ahn, Jin-Hyun / Choi, Seok Tae / Park, Hosun / Yun, Jeanho / Shin, Ok Sarah

    Cell death & disease

    2024  Volume 15, Issue 1, Page(s) 16

    Abstract: Viruses have evolved to control mitochondrial quality and content to facilitate viral replication. Mitophagy is a selective autophagy, in which the damaged or unnecessary mitochondria are removed, and thus considered an essential mechanism for ... ...

    Abstract Viruses have evolved to control mitochondrial quality and content to facilitate viral replication. Mitophagy is a selective autophagy, in which the damaged or unnecessary mitochondria are removed, and thus considered an essential mechanism for mitochondrial quality control. Although mitophagy manipulation by several RNA viruses has recently been reported, the effect of mitophagy regulation by varicella zoster virus (VZV) remains to be fully determined. In this study, we showed that dynamin-related protein-1 (DRP1)-mediated mitochondrial fission and subsequent PINK1/Parkin-dependent mitophagy were triggered during VZV infection, facilitating VZV replication. In addition, VZV glycoprotein E (gE) promoted PINK1/Parkin-mediated mitophagy by interacting with LC3 and upregulating mitochondrial reactive oxygen species. Importantly, VZV gE inhibited MAVS oligomerization and STING translocation to disrupt MAVS- and STING-mediated interferon (IFN) responses, and PINK1/Parkin-mediated mitophagy was required for VZV gE-mediated inhibition of IFN production. Similarly, carbonyl cyanide m-chlorophenyl hydrazone (CCCP)-mediated mitophagy induction led to increased VZV replication but attenuated IFN production in a three-dimensional human skin organ culture model. Our results provide new insights into the immune evasion mechanism of VZV gE via PINK1/Parkin-dependent mitophagy.
    MeSH term(s) Humans ; Mitophagy ; Immunity, Innate ; Carbonyl Cyanide m-Chlorophenyl Hydrazone ; Ubiquitin-Protein Ligases ; Antiviral Agents ; Protein Kinases
    Chemical Substances glycoprotein E, varicella-zoster virus ; Carbonyl Cyanide m-Chlorophenyl Hydrazone (555-60-2) ; Ubiquitin-Protein Ligases (EC 2.3.2.27) ; Antiviral Agents ; Protein Kinases (EC 2.7.-)
    Language English
    Publishing date 2024-01-06
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2541626-1
    ISSN 2041-4889 ; 2041-4889
    ISSN (online) 2041-4889
    ISSN 2041-4889
    DOI 10.1038/s41419-023-06400-z
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Corrigendum: CVB3-Mediated Mitophagy Plays an Important Role in Viral Replication

    Oh, Soo-Jin / Lim, Byung-Kwan / Yun, Jeanho / Shin, Ok Sarah

    Frontiers in cellular and infection microbiology

    2021  Volume 11, Page(s) 757341

    Abstract: This corrects the article DOI: 10.3389/fcimb.2021.704494.]. ...

    Abstract [This corrects the article DOI: 10.3389/fcimb.2021.704494.].
    Language English
    Publishing date 2021-09-10
    Publishing country Switzerland
    Document type Published Erratum
    ZDB-ID 2619676-1
    ISSN 2235-2988 ; 2235-2988
    ISSN (online) 2235-2988
    ISSN 2235-2988
    DOI 10.3389/fcimb.2021.757341
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: CVB3-Mediated Mitophagy Plays an Important Role in Viral Replication

    Oh, Soo-Jin / Lim, Byung-Kwan / Yun, Jeanho / Shin, Ok Sarah

    Frontiers in cellular and infection microbiology

    2021  Volume 11, Page(s) 704494

    Abstract: Coxsackievirus B3 (CVB3) is a common enterovirus that causes systemic inflammatory diseases, such as myocarditis, meningitis, and encephalitis. CVB3 has been demonstrated to subvert host cellular ... ...

    Abstract Coxsackievirus B3 (CVB3) is a common enterovirus that causes systemic inflammatory diseases, such as myocarditis, meningitis, and encephalitis. CVB3 has been demonstrated to subvert host cellular responses
    MeSH term(s) Antiviral Agents/pharmacology ; Carbonyl Cyanide m-Chlorophenyl Hydrazone/pharmacology ; Enterovirus B, Human/pathogenicity ; Enterovirus B, Human/physiology ; HeLa Cells ; Humans ; Interferons/pharmacology ; Mitophagy ; Virus Replication
    Chemical Substances Antiviral Agents ; Carbonyl Cyanide m-Chlorophenyl Hydrazone (555-60-2) ; Interferons (9008-11-1)
    Language English
    Publishing date 2021-07-06
    Publishing country Switzerland
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2619676-1
    ISSN 2235-2988 ; 2235-2988
    ISSN (online) 2235-2988
    ISSN 2235-2988
    DOI 10.3389/fcimb.2021.704494
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Nonstructural Protein NS1 of Influenza Virus Disrupts Mitochondrial Dynamics and Enhances Mitophagy via ULK1 and BNIP3.

    Lee, Jae-Hwan / Oh, Soo-Jin / Yun, Jeanho / Shin, Ok Sarah

    Viruses

    2021  Volume 13, Issue 9

    Abstract: Nonstructural protein 1 (NS1) of influenza virus (IFV) is essential for evading interferon (IFN)-mediated antiviral responses, thereby contributing to the pathogenesis of influenza. Mitophagy is a type of autophagy that selectively removes damaged ... ...

    Abstract Nonstructural protein 1 (NS1) of influenza virus (IFV) is essential for evading interferon (IFN)-mediated antiviral responses, thereby contributing to the pathogenesis of influenza. Mitophagy is a type of autophagy that selectively removes damaged mitochondria. The role of NS1 in IFV-mediated mitophagy is currently unknown. Herein, we showed that overexpression of NS1 protein led to enhancement of mitophagy. Mitophagy induction via carbonyl cyanide 3-chlorophenylhydrazone treatment in IFV-infected A549 cells led to increased viral replication efficiency, whereas the knockdown of PTEN-induced kinase 1 (PINK1) led to the opposite effect on viral replication. Overexpression of NS1 protein led to changes in mitochondrial dynamics, including depolarization of mitochondrial membrane potential. In contrast, infection with NS1-deficient virus resulted in impaired mitochondrial fragmentation, subsequent mitolysosomal formation, and mitophagy induction, suggesting an important role of NS1 in mitophagy. Meanwhile, NS1 protein increased the phosphorylation of Unc-51-like autophagy activating kinase 1 (ULK1) and the mitochondrial expression of BCL2- interacting protein 3 (BNIP3), both of which were found to be important for IFV-mediated mitophagy. Overall, these data highlight the importance of IFV NS1, ULK1, and BNIP3 during mitophagy activation.
    MeSH term(s) A549 Cells ; Animals ; Autophagy-Related Protein-1 Homolog/metabolism ; Carbonyl Cyanide m-Chlorophenyl Hydrazone/pharmacology ; Humans ; Influenza A Virus, H1N1 Subtype/metabolism ; Influenza A Virus, H1N1 Subtype/physiology ; Intracellular Signaling Peptides and Proteins/metabolism ; Membrane Potential, Mitochondrial ; Membrane Proteins/metabolism ; Mitochondria/physiology ; Mitochondrial Dynamics ; Mitophagy ; Proto-Oncogene Proteins/metabolism ; Viral Nonstructural Proteins/drug effects ; Viral Nonstructural Proteins/metabolism ; Virus Replication
    Chemical Substances BNIP3 protein, human ; INS1 protein, influenza virus ; Intracellular Signaling Peptides and Proteins ; Membrane Proteins ; Proto-Oncogene Proteins ; Viral Nonstructural Proteins ; Carbonyl Cyanide m-Chlorophenyl Hydrazone (555-60-2) ; Autophagy-Related Protein-1 Homolog (EC 2.7.11.1) ; ULK1 protein, human (EC 2.7.11.1)
    Language English
    Publishing date 2021-09-15
    Publishing country Switzerland
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2516098-9
    ISSN 1999-4915 ; 1999-4915
    ISSN (online) 1999-4915
    ISSN 1999-4915
    DOI 10.3390/v13091845
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: The PINK1 Activator Niclosamide Mitigates Mitochondrial Dysfunction and Thermal Hypersensitivity in a Paclitaxel-Induced

    Jang, Hye-Ji / Kim, Young-Yeon / Lee, Kang-Min / Shin, Jung-Eun / Yun, Jeanho

    Biomedicines

    2022  Volume 10, Issue 4

    Abstract: Paclitaxel is a widely used anticancer drug that induces dose-limiting peripheral neuropathy. Mitochondrial dysfunction has been implicated in paclitaxel-induced neuronal damage and in the onset of peripheral neuropathy. We have previously shown that the ...

    Abstract Paclitaxel is a widely used anticancer drug that induces dose-limiting peripheral neuropathy. Mitochondrial dysfunction has been implicated in paclitaxel-induced neuronal damage and in the onset of peripheral neuropathy. We have previously shown that the expression of PINK1, a key mediator of mitochondrial quality control, ameliorated the paclitaxel-induced thermal hyperalgesia phenotype and restored mitochondrial homeostasis in
    Language English
    Publishing date 2022-04-07
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2720867-9
    ISSN 2227-9059
    ISSN 2227-9059
    DOI 10.3390/biomedicines10040863
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Berberine Induces Mitophagy through Adenosine Monophosphate-Activated Protein Kinase and Ameliorates Mitochondrial Dysfunction in PINK1 Knockout Mouse Embryonic Fibroblasts.

    Um, Jee-Hyun / Lee, Kang-Min / Kim, Young-Yeon / Lee, Da-Ye / Kim, Eunmi / Kim, Dong-Hyun / Yun, Jeanho

    International journal of molecular sciences

    2023  Volume 25, Issue 1

    Abstract: Mitophagy stimulation has been shown to have a therapeutic effect on various neurodegenerative diseases. However, nontoxic mitophagy inducers are still very limited. In this study, we found that the natural alkaloid berberine exhibited mitophagy ... ...

    Abstract Mitophagy stimulation has been shown to have a therapeutic effect on various neurodegenerative diseases. However, nontoxic mitophagy inducers are still very limited. In this study, we found that the natural alkaloid berberine exhibited mitophagy stimulation activity in various human cells. Berberine did not interfere with mitochondrial function, unlike the well-known mitophagy inducer carbonyl cyanide m-chlorophenyl hydrazone (CCCP), and subsequently induced mitochondrial biogenesis. Berberine treatment induced the activation of adenosine monophosphate-activated protein kinase (AMPK), and the AMPK inhibitor compound C abolished berberine-induced mitophagy, suggesting that AMPK activation is essential for berberine-induced mitophagy. Notably, berberine treatment reversed mitochondrial dysfunction in PINK1 knockout mouse embryonic fibroblasts. Our results suggest that berberine is a mitophagy-specific inducer and can be used as a therapeutic treatment for neurodegenerative diseases, including Parkinson's disease, and that natural alkaloids are potential sources of mitophagy inducers.
    MeSH term(s) Animals ; Humans ; Mice ; Mice, Knockout ; Berberine/pharmacology ; AMP-Activated Protein Kinases ; Mitophagy ; Fibroblasts ; Carbonyl Cyanide m-Chlorophenyl Hydrazone/pharmacology ; Parkinson Disease ; Mitochondrial Diseases
    Chemical Substances Berberine (0I8Y3P32UF) ; AMP-Activated Protein Kinases (EC 2.7.11.31) ; Carbonyl Cyanide m-Chlorophenyl Hydrazone (555-60-2)
    Language English
    Publishing date 2023-12-22
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms25010219
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Checkpoint-dependent phosphorylation of Med1/TRAP220 in response to DNA damage.

    Kim, Hyun-Ju / Yun, Jeanho

    Acta biochimica et biophysica Sinica

    2017  Volume 49, Issue 6, Page(s) 496–502

    Abstract: Mediator complex subunit 1 (Med1)/Thyroid hormone receptor-associated protein 220 (TRAP220), an essential component of thyroid hormone receptor-associated proteins (TRAP)/mediator, plays important roles in hormone responses and tumorigenesis. However, ... ...

    Abstract Mediator complex subunit 1 (Med1)/Thyroid hormone receptor-associated protein 220 (TRAP220), an essential component of thyroid hormone receptor-associated proteins (TRAP)/mediator, plays important roles in hormone responses and tumorigenesis. However, the role of Med1 in the DNA damage response has not been studied. In this study, we found that DNA damage, resulted from γ-irradiation, ultraviolet (UV)-irradiation, or hydroxyurea, induced phosphorylation of Med1 in vivo. Phosphorylation of Med1 was abrogated by either caffeine or wortmannin treatment, suggesting that Med1 is phosphorylated through the DNA damage checkpoint pathway. A checkpoint kinase 1 (Chk1)/checkpoint kinase 2 (Chk2) consensus phosphorylation motif was identified at Serine 671 of Med1 and Ser671 motif was primarily phosphorylated by Chk2 in vitro. Moreover, the in vivo phosphorylation of Med1 was abrogated by a Chk2 inhibitor, and physical interaction between Chk2 and Med1 was observed, confirming that Chk2 is responsible for Med1 phosphorylation upon DNA damage. These results suggest that Med1 is a novel target for the DNA damage checkpoint pathway and may participate in the DNA damage response. Consistent with this notion, knockdown of Med1 expression caused a significant increase in cellular sensitivity to UV irradiation. Moreover, microarray analysis revealed that the UV-induced activation of the transcription of important regulators of cell cycle control and DNA repair, including p21, Gadd45, Rad50, DnaJ, and RecQL, was impaired upon Med1 knockdown. Taken together, our data suggest that Med1 is a novel target for Chk2-mediated phosphorylation and may play a role in cellular DNA damage responses by mediating proper induction of gene transcription upon DNA damage.
    Language English
    Publishing date 2017-06-01
    Publishing country China
    Document type Journal Article
    ZDB-ID 2175256-4
    ISSN 1745-7270 ; 0582-9879 ; 1672-9145
    ISSN (online) 1745-7270
    ISSN 0582-9879 ; 1672-9145
    DOI 10.1093/abbs/gmx036
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: The Natural Alkaloid Palmatine Selectively Induces Mitophagy and Restores Mitochondrial Function in an Alzheimer's Disease Mouse Model.

    Lee, Da-Ye / Lee, Kang-Min / Um, Jee-Hyun / Kim, Young-Yeon / Kim, Dong-Hyun / Yun, Jeanho

    International journal of molecular sciences

    2023  Volume 24, Issue 22

    Abstract: Palmatine, a natural alkaloid found in various plants, has been reported to have diverse pharmacological and biological effects, including anti-inflammatory, antioxidant, and cardiovascular effects. However, the role of palmatine in mitophagy, a ... ...

    Abstract Palmatine, a natural alkaloid found in various plants, has been reported to have diverse pharmacological and biological effects, including anti-inflammatory, antioxidant, and cardiovascular effects. However, the role of palmatine in mitophagy, a fundamental process crucial for maintaining mitochondrial function, remains elusive. In this study, we found that palmatine efficiently induces mitophagy in various human cell lines. Palmatine specifically induces mitophagy and subsequently stimulates mitochondrial biogenesis. Palmatine did not interfere with mitochondrial function, similar to CCCP, suggesting that palmatine is not toxic to mitochondria. Importantly, palmatine treatment alleviated mitochondrial dysfunction in PINK1-knockout MEFs. Moreover, the administration of palmatine resulted in significant improvements in cognitive function and restored mitochondrial function in an Alzheimer's disease mouse model. This study identifies palmatine as a novel inducer of selective mitophagy. Our results suggest that palmatine-mediated mitophagy induction could be a potential strategy for Alzheimer's disease treatment and that natural alkaloids are potential sources of mitophagy inducers.
    MeSH term(s) Mice ; Animals ; Humans ; Mitophagy ; Alzheimer Disease/drug therapy ; Alzheimer Disease/metabolism ; Mitochondria/metabolism ; Alkaloids/pharmacology ; Alkaloids/therapeutic use ; Alkaloids/metabolism ; Ubiquitin-Protein Ligases/metabolism
    Chemical Substances palmatine (G50C034217) ; Alkaloids ; Ubiquitin-Protein Ligases (EC 2.3.2.27)
    Language English
    Publishing date 2023-11-20
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms242216542
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Emerging role of mitophagy in human diseases and physiology.

    Um, Jee-Hyun / Yun, Jeanho

    BMB reports

    2017  Volume 50, Issue 6, Page(s) 299–307

    Abstract: Mitophagy is a process of selective removal of damaged or unnecessary mitochondria using autophagic machinery. Mitophagy plays an essential role in maintaining mitochondrial quality control and homeostasis. Mitochondrial dysfunctions and defective ... ...

    Abstract Mitophagy is a process of selective removal of damaged or unnecessary mitochondria using autophagic machinery. Mitophagy plays an essential role in maintaining mitochondrial quality control and homeostasis. Mitochondrial dysfunctions and defective mitophagy in neurodegenerative diseases, cancer, and metabolic diseases indicate a close link between human disease and mitophagy. Furthermore, recent studies showing the involvement of mitophagy in differentiation and development, suggest that mitophagy may play a more active role in controlling cellular functions. A better understanding of mitophagy will provide insights about human disease and offer novel chance for treatment. This review mainly focuses on the recent implications for mitophagy in human diseases and normal physiology. [BMB Reports 2017; 50(6): 299-307].
    MeSH term(s) Animals ; Autophagy/genetics ; Autophagy/physiology ; Cell Differentiation/genetics ; Cell Differentiation/physiology ; Humans ; Mitochondria/metabolism ; Mitochondrial Degradation/genetics ; Mitochondrial Degradation/physiology ; Neurodegenerative Diseases/genetics ; Neurodegenerative Diseases/metabolism ; Neurodegenerative Diseases/physiopathology
    Language English
    Publishing date 2017-04-01
    Publishing country Korea (South)
    Document type Journal Article ; Review
    ZDB-ID 2410389-5
    ISSN 1976-670X ; 1976-6696
    ISSN (online) 1976-670X
    ISSN 1976-6696
    DOI 10.5483/bmbrep.2017.50.6.056
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: The Mst1/2-BNIP3 axis is required for mitophagy induction and neuronal viability under mitochondrial stress.

    Jeong, Dae Jin / Um, Jee-Hyun / Kim, Young Yeon / Shin, Dong Jin / Im, Sangwoo / Lee, Kang-Min / Lee, Yun-Hee / Lim, Dae-Sik / Kim, Donghoon / Yun, Jeanho

    Experimental & molecular medicine

    2024  Volume 56, Issue 3, Page(s) 674–685

    Abstract: Mitophagy induction upon mitochondrial stress is critical for maintaining mitochondrial homeostasis and cellular function. Here, we found that Mst1/2 (Stk3/4), key regulators of the Hippo pathway, are required for the induction of mitophagy under various ...

    Abstract Mitophagy induction upon mitochondrial stress is critical for maintaining mitochondrial homeostasis and cellular function. Here, we found that Mst1/2 (Stk3/4), key regulators of the Hippo pathway, are required for the induction of mitophagy under various mitochondrial stress conditions. Knockdown of Mst1/2 or pharmacological inhibition by XMU-MP-1 treatment led to impaired mitophagy induction upon CCCP and DFP treatment. Mechanistically, Mst1/2 induces mitophagy independently of the PINK1-Parkin pathway and the canonical Hippo pathway. Moreover, our results suggest the essential involvement of BNIP3 in Mst1/2-mediated mitophagy induction upon mitochondrial stress. Notably, Mst1/2 knockdown diminishes mitophagy induction, exacerbates mitochondrial dysfunction, and reduces cellular survival upon neurotoxic stress in both SH-SY5Y cells and Drosophila models. Conversely, Mst1 and Mst2 expression enhances mitophagy induction and cell survival. In addition, AAV-mediated Mst1 expression reduced the loss of TH-positive neurons, ameliorated behavioral deficits, and improved mitochondrial function in an MPTP-induced Parkinson's disease mouse model. Our findings reveal the Mst1/2-BNIP3 regulatory axis as a novel mediator of mitophagy induction under conditions of mitochondrial stress and suggest that Mst1/2 play a pivotal role in maintaining mitochondrial function and neuronal viability in response to neurotoxic treatment.
    MeSH term(s) Animals ; Humans ; Mice ; Membrane Proteins/genetics ; Membrane Proteins/metabolism ; Mitochondria/metabolism ; Mitophagy/genetics ; Mitophagy/physiology ; Neuroblastoma ; Neurons/metabolism ; Protein Serine-Threonine Kinases/genetics ; Protein Serine-Threonine Kinases/metabolism ; Proto-Oncogene Proteins/genetics ; Proto-Oncogene Proteins/metabolism ; Ubiquitin-Protein Ligases/genetics ; Ubiquitin-Protein Ligases/metabolism ; Serine-Threonine Kinase 3/genetics ; Serine-Threonine Kinase 3/metabolism ; Drosophila/genetics
    Chemical Substances BNIP3 protein, human ; Membrane Proteins ; Protein Serine-Threonine Kinases (EC 2.7.11.1) ; Proto-Oncogene Proteins ; Ubiquitin-Protein Ligases (EC 2.3.2.27) ; STK3 protein, human (EC 2.7.11.1) ; Stk3 protein, mouse (EC 2.7.11.1) ; STK4 protein, human (EC 2.7.1.11) ; Stk4 protein, mouse (EC 2.7.1.-) ; Serine-Threonine Kinase 3 (EC 2.7.11.1) ; hpo protein, Drosophila (EC 2.7.11.1) ; BNip3 protein, mouse
    Language English
    Publishing date 2024-03-05
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1328915-9
    ISSN 2092-6413 ; 1226-3613 ; 0378-8512
    ISSN (online) 2092-6413
    ISSN 1226-3613 ; 0378-8512
    DOI 10.1038/s12276-024-01198-y
    Database MEDical Literature Analysis and Retrieval System OnLINE

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