Loading…
Tocotrienol-rich fraction from annatto ameliorates expression of lysyl oxidase in human osteoblastic MG-63 cells
Lysyl oxidase (LOX) is required for the formation of bone collagen cross-links. Inactivation of the LOX gene in osteoblasts by DNA methylation and JAK signaling has been reported to cause loss of cross-links and an increased risk of fractures. Tocotrienols (T3s) have proven benefits on bone strength...
Saved in:
Published in: | Bioscience, biotechnology, and biochemistry biotechnology, and biochemistry, 2020-03, Vol.84 (3), p.526-535 |
---|---|
Main Authors: | , , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites |
Online Access: | Get full text |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
cited_by | |
---|---|
cites | cdi_FETCH-LOGICAL-c379t-3a77196bb4b8c561e2099af7b05f0328654e8af4c38c5e5702eb9dd7d1d55c413 |
container_end_page | 535 |
container_issue | 3 |
container_start_page | 526 |
container_title | Bioscience, biotechnology, and biochemistry |
container_volume | 84 |
creator | Kohno, Kakeru Yamada, Wakana Ishitsuka, Aya Sekine, Miki Virgona, Nantiga Ota, Masako Yano, Tomohiro |
description | Lysyl oxidase (LOX) is required for the formation of bone collagen cross-links. Inactivation of the LOX gene in osteoblasts by DNA methylation and JAK signaling has been reported to cause loss of cross-links and an increased risk of fractures. Tocotrienols (T3s) have proven benefits on bone strength, but their potential effects on LOX remain largely unknown. Thus, the present study investigates the in vitro effects of T3s on LOX expression in human osteoblastic MG-63 cells. Results indicated that Tocotrienol-Rich Fraction (TRF), the δ-T3 rich oil extracted from Annatto was the most effective and significantly increased LOX expression. TRF treatment decreased de-novo methyltransferases (DNMTs), DNMT3A and DNMT3B levels. In addition, TRF significantly inhibited JAK2 activation and decreased expression of Fli1, a transcription factor of DNMTs. We conclude that TRF induced an increase in LOX expression via inhibition of de-novo methylation and reduction of Fli1 expression by the inactivation of JAK2.
Abbreviations: CpG: cytosine-guanine dinucleotide; DNMT: DNA methyltransferase; Fli1: friend leukemia virus integration 1; JAK: janus kinase; LOX: lysyl oxidase; PCR: polymerase chain reaction; STAT: signal transducers and activators of transcription; T3s: tocotrienols; TPs: tocopherols; TRF: Tocotrienol-Rich Fraction.
TRF induced amelioration of LOX expression in MG-63 via inhibition of de-novo methylation through the reduction of Fli1 expression by the inactivation of JAK2. |
doi_str_mv | 10.1080/09168451.2019.1693252 |
format | article |
fullrecord | <record><control><sourceid>proquest_pubme</sourceid><recordid>TN_cdi_proquest_miscellaneous_2316431250</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><oup_id>10.1080/09168451.2019.1693252</oup_id><sourcerecordid>2316431250</sourcerecordid><originalsourceid>FETCH-LOGICAL-c379t-3a77196bb4b8c561e2099af7b05f0328654e8af4c38c5e5702eb9dd7d1d55c413</originalsourceid><addsrcrecordid>eNqNkUFPHCEYhomp0a31J7Th6GVWGGAYbjZGrYlNL_ZMGIaJGGYY-ZjU_fcy2dWj6QnC97wP5AWh75RsKWnJJVG0abmg25pQtaWNYrWoj9CGMi6rRnH5BW1WplqhU_QV4JmQciDoCTplVHJWLBs0P0Ybc_JuiqFK3j7hIRmbfZzKJo7YTJPJOWIzuuBjMtkBdq9zcgArEwccdrALOL763oDDfsJPy2jKBLKLXTCQvcW_76qGYetCgG_oeDAB3PlhPUN_b28er39VD3_u7q9_PlSWSZUrZqSkquk63rVWNNTVRCkzyI6IgbC6bQR3rRm4ZWXshCS161Tfy572QlhO2Rm62HvnFF8WB1mPHtYXmMnFBXTNaMMZrQUpqNijNkWA5AY9Jz-atNOU6LVs_V62XsvWh7JL7sfhiqUbXf-Rem-3AGQPxGX-b-fVPuKnIabR_Isp9DqbXYip_MxkPRT_p4o3a7-dEA</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2316431250</pqid></control><display><type>article</type><title>Tocotrienol-rich fraction from annatto ameliorates expression of lysyl oxidase in human osteoblastic MG-63 cells</title><source>Oxford Journals Online</source><source>EZB Electronic Journals Library</source><creator>Kohno, Kakeru ; Yamada, Wakana ; Ishitsuka, Aya ; Sekine, Miki ; Virgona, Nantiga ; Ota, Masako ; Yano, Tomohiro</creator><creatorcontrib>Kohno, Kakeru ; Yamada, Wakana ; Ishitsuka, Aya ; Sekine, Miki ; Virgona, Nantiga ; Ota, Masako ; Yano, Tomohiro</creatorcontrib><description>Lysyl oxidase (LOX) is required for the formation of bone collagen cross-links. Inactivation of the LOX gene in osteoblasts by DNA methylation and JAK signaling has been reported to cause loss of cross-links and an increased risk of fractures. Tocotrienols (T3s) have proven benefits on bone strength, but their potential effects on LOX remain largely unknown. Thus, the present study investigates the in vitro effects of T3s on LOX expression in human osteoblastic MG-63 cells. Results indicated that Tocotrienol-Rich Fraction (TRF), the δ-T3 rich oil extracted from Annatto was the most effective and significantly increased LOX expression. TRF treatment decreased de-novo methyltransferases (DNMTs), DNMT3A and DNMT3B levels. In addition, TRF significantly inhibited JAK2 activation and decreased expression of Fli1, a transcription factor of DNMTs. We conclude that TRF induced an increase in LOX expression via inhibition of de-novo methylation and reduction of Fli1 expression by the inactivation of JAK2.
Abbreviations: CpG: cytosine-guanine dinucleotide; DNMT: DNA methyltransferase; Fli1: friend leukemia virus integration 1; JAK: janus kinase; LOX: lysyl oxidase; PCR: polymerase chain reaction; STAT: signal transducers and activators of transcription; T3s: tocotrienols; TPs: tocopherols; TRF: Tocotrienol-Rich Fraction.
TRF induced amelioration of LOX expression in MG-63 via inhibition of de-novo methylation through the reduction of Fli1 expression by the inactivation of JAK2.</description><identifier>ISSN: 0916-8451</identifier><identifier>EISSN: 1347-6947</identifier><identifier>DOI: 10.1080/09168451.2019.1693252</identifier><identifier>PMID: 31743080</identifier><language>eng</language><publisher>England: Taylor & Francis</publisher><subject>Bixaceae - metabolism ; bone quality ; Carotenoids - metabolism ; Cell Line ; DNA methylation ; human osteoblastic cell ; Humans ; lysyl oxidase ; Osteoblasts - enzymology ; Osteoblasts - metabolism ; Plant Extracts - metabolism ; Protein-Lysine 6-Oxidase - metabolism ; Tocotrienol-Rich Fraction from Annatto ; Tocotrienols - metabolism</subject><ispartof>Bioscience, biotechnology, and biochemistry, 2020-03, Vol.84 (3), p.526-535</ispartof><rights>2019 Japan Society for Bioscience, Biotechnology, and Agrochemistry 2019</rights><rights>2020 Japan Society for Bioscience, Biotechnology, and Agrochemistry 2020</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c379t-3a77196bb4b8c561e2099af7b05f0328654e8af4c38c5e5702eb9dd7d1d55c413</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>315,786,790,27957,27958</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/31743080$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Kohno, Kakeru</creatorcontrib><creatorcontrib>Yamada, Wakana</creatorcontrib><creatorcontrib>Ishitsuka, Aya</creatorcontrib><creatorcontrib>Sekine, Miki</creatorcontrib><creatorcontrib>Virgona, Nantiga</creatorcontrib><creatorcontrib>Ota, Masako</creatorcontrib><creatorcontrib>Yano, Tomohiro</creatorcontrib><title>Tocotrienol-rich fraction from annatto ameliorates expression of lysyl oxidase in human osteoblastic MG-63 cells</title><title>Bioscience, biotechnology, and biochemistry</title><addtitle>Biosci Biotechnol Biochem</addtitle><description>Lysyl oxidase (LOX) is required for the formation of bone collagen cross-links. Inactivation of the LOX gene in osteoblasts by DNA methylation and JAK signaling has been reported to cause loss of cross-links and an increased risk of fractures. Tocotrienols (T3s) have proven benefits on bone strength, but their potential effects on LOX remain largely unknown. Thus, the present study investigates the in vitro effects of T3s on LOX expression in human osteoblastic MG-63 cells. Results indicated that Tocotrienol-Rich Fraction (TRF), the δ-T3 rich oil extracted from Annatto was the most effective and significantly increased LOX expression. TRF treatment decreased de-novo methyltransferases (DNMTs), DNMT3A and DNMT3B levels. In addition, TRF significantly inhibited JAK2 activation and decreased expression of Fli1, a transcription factor of DNMTs. We conclude that TRF induced an increase in LOX expression via inhibition of de-novo methylation and reduction of Fli1 expression by the inactivation of JAK2.
Abbreviations: CpG: cytosine-guanine dinucleotide; DNMT: DNA methyltransferase; Fli1: friend leukemia virus integration 1; JAK: janus kinase; LOX: lysyl oxidase; PCR: polymerase chain reaction; STAT: signal transducers and activators of transcription; T3s: tocotrienols; TPs: tocopherols; TRF: Tocotrienol-Rich Fraction.
TRF induced amelioration of LOX expression in MG-63 via inhibition of de-novo methylation through the reduction of Fli1 expression by the inactivation of JAK2.</description><subject>Bixaceae - metabolism</subject><subject>bone quality</subject><subject>Carotenoids - metabolism</subject><subject>Cell Line</subject><subject>DNA methylation</subject><subject>human osteoblastic cell</subject><subject>Humans</subject><subject>lysyl oxidase</subject><subject>Osteoblasts - enzymology</subject><subject>Osteoblasts - metabolism</subject><subject>Plant Extracts - metabolism</subject><subject>Protein-Lysine 6-Oxidase - metabolism</subject><subject>Tocotrienol-Rich Fraction from Annatto</subject><subject>Tocotrienols - metabolism</subject><issn>0916-8451</issn><issn>1347-6947</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNqNkUFPHCEYhomp0a31J7Th6GVWGGAYbjZGrYlNL_ZMGIaJGGYY-ZjU_fcy2dWj6QnC97wP5AWh75RsKWnJJVG0abmg25pQtaWNYrWoj9CGMi6rRnH5BW1WplqhU_QV4JmQciDoCTplVHJWLBs0P0Ybc_JuiqFK3j7hIRmbfZzKJo7YTJPJOWIzuuBjMtkBdq9zcgArEwccdrALOL763oDDfsJPy2jKBLKLXTCQvcW_76qGYetCgG_oeDAB3PlhPUN_b28er39VD3_u7q9_PlSWSZUrZqSkquk63rVWNNTVRCkzyI6IgbC6bQR3rRm4ZWXshCS161Tfy572QlhO2Rm62HvnFF8WB1mPHtYXmMnFBXTNaMMZrQUpqNijNkWA5AY9Jz-atNOU6LVs_V62XsvWh7JL7sfhiqUbXf-Rem-3AGQPxGX-b-fVPuKnIabR_Isp9DqbXYip_MxkPRT_p4o3a7-dEA</recordid><startdate>20200303</startdate><enddate>20200303</enddate><creator>Kohno, Kakeru</creator><creator>Yamada, Wakana</creator><creator>Ishitsuka, Aya</creator><creator>Sekine, Miki</creator><creator>Virgona, Nantiga</creator><creator>Ota, Masako</creator><creator>Yano, Tomohiro</creator><general>Taylor & Francis</general><general>Oxford University Press</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20200303</creationdate><title>Tocotrienol-rich fraction from annatto ameliorates expression of lysyl oxidase in human osteoblastic MG-63 cells</title><author>Kohno, Kakeru ; Yamada, Wakana ; Ishitsuka, Aya ; Sekine, Miki ; Virgona, Nantiga ; Ota, Masako ; Yano, Tomohiro</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c379t-3a77196bb4b8c561e2099af7b05f0328654e8af4c38c5e5702eb9dd7d1d55c413</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Bixaceae - metabolism</topic><topic>bone quality</topic><topic>Carotenoids - metabolism</topic><topic>Cell Line</topic><topic>DNA methylation</topic><topic>human osteoblastic cell</topic><topic>Humans</topic><topic>lysyl oxidase</topic><topic>Osteoblasts - enzymology</topic><topic>Osteoblasts - metabolism</topic><topic>Plant Extracts - metabolism</topic><topic>Protein-Lysine 6-Oxidase - metabolism</topic><topic>Tocotrienol-Rich Fraction from Annatto</topic><topic>Tocotrienols - metabolism</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kohno, Kakeru</creatorcontrib><creatorcontrib>Yamada, Wakana</creatorcontrib><creatorcontrib>Ishitsuka, Aya</creatorcontrib><creatorcontrib>Sekine, Miki</creatorcontrib><creatorcontrib>Virgona, Nantiga</creatorcontrib><creatorcontrib>Ota, Masako</creatorcontrib><creatorcontrib>Yano, Tomohiro</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Bioscience, biotechnology, and biochemistry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kohno, Kakeru</au><au>Yamada, Wakana</au><au>Ishitsuka, Aya</au><au>Sekine, Miki</au><au>Virgona, Nantiga</au><au>Ota, Masako</au><au>Yano, Tomohiro</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Tocotrienol-rich fraction from annatto ameliorates expression of lysyl oxidase in human osteoblastic MG-63 cells</atitle><jtitle>Bioscience, biotechnology, and biochemistry</jtitle><addtitle>Biosci Biotechnol Biochem</addtitle><date>2020-03-03</date><risdate>2020</risdate><volume>84</volume><issue>3</issue><spage>526</spage><epage>535</epage><pages>526-535</pages><issn>0916-8451</issn><eissn>1347-6947</eissn><notes>ObjectType-Article-1</notes><notes>SourceType-Scholarly Journals-1</notes><notes>ObjectType-Feature-2</notes><notes>content type line 23</notes><abstract>Lysyl oxidase (LOX) is required for the formation of bone collagen cross-links. Inactivation of the LOX gene in osteoblasts by DNA methylation and JAK signaling has been reported to cause loss of cross-links and an increased risk of fractures. Tocotrienols (T3s) have proven benefits on bone strength, but their potential effects on LOX remain largely unknown. Thus, the present study investigates the in vitro effects of T3s on LOX expression in human osteoblastic MG-63 cells. Results indicated that Tocotrienol-Rich Fraction (TRF), the δ-T3 rich oil extracted from Annatto was the most effective and significantly increased LOX expression. TRF treatment decreased de-novo methyltransferases (DNMTs), DNMT3A and DNMT3B levels. In addition, TRF significantly inhibited JAK2 activation and decreased expression of Fli1, a transcription factor of DNMTs. We conclude that TRF induced an increase in LOX expression via inhibition of de-novo methylation and reduction of Fli1 expression by the inactivation of JAK2.
Abbreviations: CpG: cytosine-guanine dinucleotide; DNMT: DNA methyltransferase; Fli1: friend leukemia virus integration 1; JAK: janus kinase; LOX: lysyl oxidase; PCR: polymerase chain reaction; STAT: signal transducers and activators of transcription; T3s: tocotrienols; TPs: tocopherols; TRF: Tocotrienol-Rich Fraction.
TRF induced amelioration of LOX expression in MG-63 via inhibition of de-novo methylation through the reduction of Fli1 expression by the inactivation of JAK2.</abstract><cop>England</cop><pub>Taylor & Francis</pub><pmid>31743080</pmid><doi>10.1080/09168451.2019.1693252</doi><tpages>10</tpages></addata></record> |
fulltext | fulltext |
identifier | ISSN: 0916-8451 |
ispartof | Bioscience, biotechnology, and biochemistry, 2020-03, Vol.84 (3), p.526-535 |
issn | 0916-8451 1347-6947 |
language | eng |
recordid | cdi_proquest_miscellaneous_2316431250 |
source | Oxford Journals Online; EZB Electronic Journals Library |
subjects | Bixaceae - metabolism bone quality Carotenoids - metabolism Cell Line DNA methylation human osteoblastic cell Humans lysyl oxidase Osteoblasts - enzymology Osteoblasts - metabolism Plant Extracts - metabolism Protein-Lysine 6-Oxidase - metabolism Tocotrienol-Rich Fraction from Annatto Tocotrienols - metabolism |
title | Tocotrienol-rich fraction from annatto ameliorates expression of lysyl oxidase in human osteoblastic MG-63 cells |
url | http://sfxeu10.hosted.exlibrisgroup.com/loughborough?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-09-21T20%3A05%3A32IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_pubme&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Tocotrienol-rich%20fraction%20from%20annatto%20ameliorates%20expression%20of%20lysyl%20oxidase%20in%20human%20osteoblastic%20MG-63%20cells&rft.jtitle=Bioscience,%20biotechnology,%20and%20biochemistry&rft.au=Kohno,%20Kakeru&rft.date=2020-03-03&rft.volume=84&rft.issue=3&rft.spage=526&rft.epage=535&rft.pages=526-535&rft.issn=0916-8451&rft.eissn=1347-6947&rft_id=info:doi/10.1080/09168451.2019.1693252&rft_dat=%3Cproquest_pubme%3E2316431250%3C/proquest_pubme%3E%3Cgrp_id%3Ecdi_FETCH-LOGICAL-c379t-3a77196bb4b8c561e2099af7b05f0328654e8af4c38c5e5702eb9dd7d1d55c413%3C/grp_id%3E%3Coa%3E%3C/oa%3E%3Curl%3E%3C/url%3E&rft_id=info:oai/&rft_pqid=2316431250&rft_id=info:pmid/31743080&rft_oup_id=10.1080/09168451.2019.1693252&rfr_iscdi=true |