Autophagy mediates cytotoxicity of human colorectal cancer cells treated with garcinielliptone FC

The tautomeric pair of garcinielliptone FC (GFC) is a novel tautomeric pair of polyprenyl benzophenonoid isolated from the pericarps of Garcinia subelliptica Merr. (G. subelliptica, Clusiaceae), a tree with abundant sources of polyphenols. Our previous report demonstrated that GFC induced apoptosis...

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Veröffentlicht in:Journal of cellular physiology 2018-01, Vol.233 (1), p.497-505
Hauptverfasser: Won, Shen‐Jeu, Yen, Cheng‐Hsin, Lin, Ting‐Yu, Jiang‐Shieh, Ya‐Fen, Lin, Chun‐Nan, Chen, Jyun‐Ti, Su, Chun‐Li
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container_issue 1
container_start_page 497
container_title Journal of cellular physiology
container_volume 233
creator Won, Shen‐Jeu
Yen, Cheng‐Hsin
Lin, Ting‐Yu
Jiang‐Shieh, Ya‐Fen
Lin, Chun‐Nan
Chen, Jyun‐Ti
Su, Chun‐Li
description The tautomeric pair of garcinielliptone FC (GFC) is a novel tautomeric pair of polyprenyl benzophenonoid isolated from the pericarps of Garcinia subelliptica Merr. (G. subelliptica, Clusiaceae), a tree with abundant sources of polyphenols. Our previous report demonstrated that GFC induced apoptosis on various types of human cancer cell lines including chemoresistant human colorectal cancer HT‐29 cells. In the present study, we observed that many autophagy‐related genes in GFC‐treated HT‐29 cells were up‐ and down‐regulated using a cDNA microarray containing oncogenes and kinase genes. GFC‐induced autophagy of HT‐29 cells was confirmed by observing the formation of acidic vesicular organelles, LC3 puncta, and double‐membrane autophagic vesicles using flow cytometry, confocal microscopy, and transmission electron microscopy, respectively. Inhibition of AKT/mTOR/P70S6K signaling as well as formation of Atg5‐Atg12 and PI3K/Beclin‐1 complexes were observed using Western blot. Administration of autophagy inhibitor (3‐methyladenine and shRNA Atg5) and apoptosis inhibitor Z‐VAD showed that the GFC‐induced autophagy was cytotoxic form and GFC‐induced apoptosis enhanced GFC‐induced autophagy. Our data suggest the involvement of autophagy and apoptosis in GFC‐induced anticancer mechanisms of human colorectal cancer. The tautomeric pair of garcinielliptone FC (GFC) is a novel tautomeric pair of polyprenyl benzophenonoid isolated from the pericarps of Garcinia subelliptica Merr. (G. subelliptica, Clusiaceae), a tree with abundant sources of polyphenols. GFC‐induced autophagy was cytotoxic form and GFC‐induced apoptosis enhanced GFC‐induced autophagy.
doi_str_mv 10.1002/jcp.25910
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(G. subelliptica, Clusiaceae), a tree with abundant sources of polyphenols. Our previous report demonstrated that GFC induced apoptosis on various types of human cancer cell lines including chemoresistant human colorectal cancer HT‐29 cells. In the present study, we observed that many autophagy‐related genes in GFC‐treated HT‐29 cells were up‐ and down‐regulated using a cDNA microarray containing oncogenes and kinase genes. GFC‐induced autophagy of HT‐29 cells was confirmed by observing the formation of acidic vesicular organelles, LC3 puncta, and double‐membrane autophagic vesicles using flow cytometry, confocal microscopy, and transmission electron microscopy, respectively. Inhibition of AKT/mTOR/P70S6K signaling as well as formation of Atg5‐Atg12 and PI3K/Beclin‐1 complexes were observed using Western blot. Administration of autophagy inhibitor (3‐methyladenine and shRNA Atg5) and apoptosis inhibitor Z‐VAD showed that the GFC‐induced autophagy was cytotoxic form and GFC‐induced apoptosis enhanced GFC‐induced autophagy. Our data suggest the involvement of autophagy and apoptosis in GFC‐induced anticancer mechanisms of human colorectal cancer. The tautomeric pair of garcinielliptone FC (GFC) is a novel tautomeric pair of polyprenyl benzophenonoid isolated from the pericarps of Garcinia subelliptica Merr. (G. subelliptica, Clusiaceae), a tree with abundant sources of polyphenols. GFC‐induced autophagy was cytotoxic form and GFC‐induced apoptosis enhanced GFC‐induced autophagy.</description><identifier>ISSN: 0021-9541</identifier><identifier>EISSN: 1097-4652</identifier><identifier>DOI: 10.1002/jcp.25910</identifier><identifier>PMID: 28294332</identifier><language>eng</language><publisher>United States: Wiley Subscription Services, Inc</publisher><subject>1-Phosphatidylinositol 3-kinase ; AKT protein ; Antineoplastic Agents, Phytogenic - pharmacology ; Apoptosis ; Apoptosis - drug effects ; Autophagy ; Autophagy - drug effects ; Autophagy-Related Protein 12 - genetics ; Autophagy-Related Protein 12 - metabolism ; Autophagy-Related Protein 5 - genetics ; Autophagy-Related Protein 5 - metabolism ; Beclin-1 - genetics ; Beclin-1 - metabolism ; Cancer ; Colorectal cancer ; Colorectal carcinoma ; Colorectal Neoplasms - drug therapy ; Colorectal Neoplasms - genetics ; Colorectal Neoplasms - metabolism ; Colorectal Neoplasms - ultrastructure ; Confocal microscopy ; Cytometry ; Cytotoxicity ; DNA microarrays ; Dose-Response Relationship, Drug ; Electron microscopy ; Flow cytometry ; garcinielliptone FC ; Gene Expression Regulation, Neoplastic ; Genes ; HT29 Cells ; human colorectal cancer ; Humans ; Inhibitors ; Membrane vesicles ; Organelles ; Phagocytosis ; Phosphatidylinositol 3-Kinase - metabolism ; Polyphenols ; Proto-Oncogene Proteins c-akt - metabolism ; Ribosomal Protein S6 Kinases, 70-kDa - metabolism ; RNA Interference ; RNA, Messenger - genetics ; RNA, Messenger - metabolism ; Signal Transduction - drug effects ; Time Factors ; TOR protein ; TOR Serine-Threonine Kinases - metabolism ; Toxicity ; Transfection ; Transmission electron microscopy ; Triterpenes - pharmacology ; Tumor cell lines</subject><ispartof>Journal of cellular physiology, 2018-01, Vol.233 (1), p.497-505</ispartof><rights>2017 Wiley Periodicals, Inc.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3530-b45654b39d189166ecac23e66ef2ab6cf6837b1ae1f743ecd14e137c8b6d57b03</citedby><cites>FETCH-LOGICAL-c3530-b45654b39d189166ecac23e66ef2ab6cf6837b1ae1f743ecd14e137c8b6d57b03</cites><orcidid>0000-0001-7617-2077</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fjcp.25910$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fjcp.25910$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,27924,27925,45574,45575</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/28294332$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Won, Shen‐Jeu</creatorcontrib><creatorcontrib>Yen, Cheng‐Hsin</creatorcontrib><creatorcontrib>Lin, Ting‐Yu</creatorcontrib><creatorcontrib>Jiang‐Shieh, Ya‐Fen</creatorcontrib><creatorcontrib>Lin, Chun‐Nan</creatorcontrib><creatorcontrib>Chen, Jyun‐Ti</creatorcontrib><creatorcontrib>Su, Chun‐Li</creatorcontrib><title>Autophagy mediates cytotoxicity of human colorectal cancer cells treated with garcinielliptone FC</title><title>Journal of cellular physiology</title><addtitle>J Cell Physiol</addtitle><description>The tautomeric pair of garcinielliptone FC (GFC) is a novel tautomeric pair of polyprenyl benzophenonoid isolated from the pericarps of Garcinia subelliptica Merr. (G. subelliptica, Clusiaceae), a tree with abundant sources of polyphenols. Our previous report demonstrated that GFC induced apoptosis on various types of human cancer cell lines including chemoresistant human colorectal cancer HT‐29 cells. In the present study, we observed that many autophagy‐related genes in GFC‐treated HT‐29 cells were up‐ and down‐regulated using a cDNA microarray containing oncogenes and kinase genes. GFC‐induced autophagy of HT‐29 cells was confirmed by observing the formation of acidic vesicular organelles, LC3 puncta, and double‐membrane autophagic vesicles using flow cytometry, confocal microscopy, and transmission electron microscopy, respectively. Inhibition of AKT/mTOR/P70S6K signaling as well as formation of Atg5‐Atg12 and PI3K/Beclin‐1 complexes were observed using Western blot. 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subjects 1-Phosphatidylinositol 3-kinase
AKT protein
Antineoplastic Agents, Phytogenic - pharmacology
Apoptosis
Apoptosis - drug effects
Autophagy
Autophagy - drug effects
Autophagy-Related Protein 12 - genetics
Autophagy-Related Protein 12 - metabolism
Autophagy-Related Protein 5 - genetics
Autophagy-Related Protein 5 - metabolism
Beclin-1 - genetics
Beclin-1 - metabolism
Cancer
Colorectal cancer
Colorectal carcinoma
Colorectal Neoplasms - drug therapy
Colorectal Neoplasms - genetics
Colorectal Neoplasms - metabolism
Colorectal Neoplasms - ultrastructure
Confocal microscopy
Cytometry
Cytotoxicity
DNA microarrays
Dose-Response Relationship, Drug
Electron microscopy
Flow cytometry
garcinielliptone FC
Gene Expression Regulation, Neoplastic
Genes
HT29 Cells
human colorectal cancer
Humans
Inhibitors
Membrane vesicles
Organelles
Phagocytosis
Phosphatidylinositol 3-Kinase - metabolism
Polyphenols
Proto-Oncogene Proteins c-akt - metabolism
Ribosomal Protein S6 Kinases, 70-kDa - metabolism
RNA Interference
RNA, Messenger - genetics
RNA, Messenger - metabolism
Signal Transduction - drug effects
Time Factors
TOR protein
TOR Serine-Threonine Kinases - metabolism
Toxicity
Transfection
Transmission electron microscopy
Triterpenes - pharmacology
Tumor cell lines
title Autophagy mediates cytotoxicity of human colorectal cancer cells treated with garcinielliptone FC
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