Phenylmethimazole Decreases Toll-Like Receptor 3 and Noncanonical Wnt5a Expression in Pancreatic Cancer and Melanoma Together with Tumor Cell Growth and Migration

Purpose: To evaluate whether ( a ) Wnt5a expression in pancreatic cancer and malignant melanoma cells might be associated with constitutive levels of Toll-like receptor 3 (TLR3) and/or TLR3 signaling; ( b ) phenylmethimazole (C10), a novel TLR signaling inhibitor, could decrease constitutive Wnt5a a...

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Veröffentlicht in:Clinical cancer research 2009-06, Vol.15 (12), p.4114-4122
Hauptverfasser: Schwartz, Anthony L, Malgor, Ramiro, Dickerson, Eric, Weeraratna, Ashani T, Slominski, Andrzej, Wortsman, Jacobo, Harii, Norikazu, Kohn, Aimee D, Moon, Randall T, Schwartz, Frank L, Goetz, Douglas J, Kohn, Leonard D, McCall, Kelly D
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container_end_page 4122
container_issue 12
container_start_page 4114
container_title Clinical cancer research
container_volume 15
creator Schwartz, Anthony L
Malgor, Ramiro
Dickerson, Eric
Weeraratna, Ashani T
Slominski, Andrzej
Wortsman, Jacobo
Harii, Norikazu
Kohn, Aimee D
Moon, Randall T
Schwartz, Frank L
Goetz, Douglas J
Kohn, Leonard D
McCall, Kelly D
description Purpose: To evaluate whether ( a ) Wnt5a expression in pancreatic cancer and malignant melanoma cells might be associated with constitutive levels of Toll-like receptor 3 (TLR3) and/or TLR3 signaling; ( b ) phenylmethimazole (C10), a novel TLR signaling inhibitor, could decrease constitutive Wnt5a and TLR3 levels together with cell growth and migration; and ( c ) the efficacy of C10 as a potential inhibitor of pancreatic cancer and malignant melanoma cell growth in vivo . Experimental Design: We used a variety of molecular biology techniques including but not limited to PCR, Western blotting, and ELISA to evaluate the presence of constitutively activated TLR3/Wnt5a expression and signaling. 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide-based technology and scratch assays were used to evaluate inhibition of cell growth and migration, respectively. TLR3 regulation of cell growth was confirmed using small interfering RNA technology. Nude and severe combined immunodeficient mice were implanted with human pancreatic cancer and/or melanoma cells and the effects of C10 on tumor growth were evaluated. Results: We show that constitutive TLR3 expression is associated with constitutive Wnt5a in human pancreatic cancer and malignant melanoma cell lines, that C10 can decrease constitutive TLR3/Wnt5a expression and signaling, suggesting that they are interrelated signal systems, and that C10 inhibits growth and migration in both of these cancer cell lines. We also report that C10 is effective at inhibiting human pancreatic cancer and malignant melanoma tumor growth in vivo in nude or severe combined immunodeficient mice and associate this with inhibition of signal transducers and activators of transcription 3 activation. Conclusions: C10 may have potential therapeutic applicability in pancreatic cancer and malignant melanoma.
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Experimental Design: We used a variety of molecular biology techniques including but not limited to PCR, Western blotting, and ELISA to evaluate the presence of constitutively activated TLR3/Wnt5a expression and signaling. 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide-based technology and scratch assays were used to evaluate inhibition of cell growth and migration, respectively. TLR3 regulation of cell growth was confirmed using small interfering RNA technology. Nude and severe combined immunodeficient mice were implanted with human pancreatic cancer and/or melanoma cells and the effects of C10 on tumor growth were evaluated. 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derivatives</topic><topic>Methimazole - pharmacology</topic><topic>Mice</topic><topic>Mice, Nude</topic><topic>Mice, SCID</topic><topic>Pancreatic Neoplasms - drug therapy</topic><topic>Pancreatic Neoplasms - metabolism</topic><topic>Pancreatic Neoplasms - pathology</topic><topic>phenylmethimazole</topic><topic>Proto-Oncogene Proteins - antagonists &amp; inhibitors</topic><topic>Proto-Oncogene Proteins - metabolism</topic><topic>RNA, Small Interfering - metabolism</topic><topic>Signal Transduction - drug effects</topic><topic>Signal Transduction - physiology</topic><topic>Skin Neoplasms - drug therapy</topic><topic>Skin Neoplasms - metabolism</topic><topic>Skin Neoplasms - pathology</topic><topic>STAT3 Transcription Factor - antagonists &amp; inhibitors</topic><topic>STAT3 Transcription Factor - metabolism</topic><topic>Thiones - pharmacology</topic><topic>Toll-Like Receptor 3 - antagonists &amp; inhibitors</topic><topic>Toll-Like Receptor 3 - genetics</topic><topic>Toll-Like Receptor 3 - metabolism</topic><topic>Toll-like receptors</topic><topic>Wnt Proteins - antagonists &amp; inhibitors</topic><topic>Wnt Proteins - metabolism</topic><topic>Wnt-5a Protein</topic><topic>Wnt5a</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Schwartz, Anthony L</creatorcontrib><creatorcontrib>Malgor, Ramiro</creatorcontrib><creatorcontrib>Dickerson, Eric</creatorcontrib><creatorcontrib>Weeraratna, Ashani T</creatorcontrib><creatorcontrib>Slominski, Andrzej</creatorcontrib><creatorcontrib>Wortsman, Jacobo</creatorcontrib><creatorcontrib>Harii, Norikazu</creatorcontrib><creatorcontrib>Kohn, Aimee D</creatorcontrib><creatorcontrib>Moon, Randall T</creatorcontrib><creatorcontrib>Schwartz, Frank L</creatorcontrib><creatorcontrib>Goetz, Douglas J</creatorcontrib><creatorcontrib>Kohn, Leonard D</creatorcontrib><creatorcontrib>McCall, Kelly D</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>Clinical cancer research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Schwartz, Anthony L</au><au>Malgor, Ramiro</au><au>Dickerson, Eric</au><au>Weeraratna, Ashani T</au><au>Slominski, Andrzej</au><au>Wortsman, Jacobo</au><au>Harii, Norikazu</au><au>Kohn, Aimee D</au><au>Moon, Randall T</au><au>Schwartz, Frank L</au><au>Goetz, Douglas J</au><au>Kohn, Leonard D</au><au>McCall, Kelly D</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Phenylmethimazole Decreases Toll-Like Receptor 3 and Noncanonical Wnt5a Expression in Pancreatic Cancer and Melanoma Together with Tumor Cell Growth and Migration</atitle><jtitle>Clinical cancer research</jtitle><addtitle>Clin Cancer Res</addtitle><date>2009-06-15</date><risdate>2009</risdate><volume>15</volume><issue>12</issue><spage>4114</spage><epage>4122</epage><pages>4114-4122</pages><issn>1078-0432</issn><eissn>1557-3265</eissn><abstract>Purpose: To evaluate whether ( a ) Wnt5a expression in pancreatic cancer and malignant melanoma cells might be associated with constitutive levels of Toll-like receptor 3 (TLR3) and/or TLR3 signaling; ( b ) phenylmethimazole (C10), a novel TLR signaling inhibitor, could decrease constitutive Wnt5a and TLR3 levels together with cell growth and migration; and ( c ) the efficacy of C10 as a potential inhibitor of pancreatic cancer and malignant melanoma cell growth in vivo . Experimental Design: We used a variety of molecular biology techniques including but not limited to PCR, Western blotting, and ELISA to evaluate the presence of constitutively activated TLR3/Wnt5a expression and signaling. 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide-based technology and scratch assays were used to evaluate inhibition of cell growth and migration, respectively. TLR3 regulation of cell growth was confirmed using small interfering RNA technology. Nude and severe combined immunodeficient mice were implanted with human pancreatic cancer and/or melanoma cells and the effects of C10 on tumor growth were evaluated. Results: We show that constitutive TLR3 expression is associated with constitutive Wnt5a in human pancreatic cancer and malignant melanoma cell lines, that C10 can decrease constitutive TLR3/Wnt5a expression and signaling, suggesting that they are interrelated signal systems, and that C10 inhibits growth and migration in both of these cancer cell lines. We also report that C10 is effective at inhibiting human pancreatic cancer and malignant melanoma tumor growth in vivo in nude or severe combined immunodeficient mice and associate this with inhibition of signal transducers and activators of transcription 3 activation. Conclusions: C10 may have potential therapeutic applicability in pancreatic cancer and malignant melanoma.</abstract><cop>United States</cop><pub>American Association for Cancer Research</pub><pmid>19470740</pmid><doi>10.1158/1078-0432.CCR-09-0005</doi><tpages>9</tpages><oa>free_for_read</oa></addata></record>
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subjects Animals
Antithyroid Agents - pharmacology
Cell Line, Tumor
Chemokine CXCL10 - antagonists & inhibitors
Chemokine CXCL10 - metabolism
Gene Knockdown Techniques
Humans
Interferon-beta - antagonists & inhibitors
Interferon-beta - metabolism
Interleukin-6 - antagonists & inhibitors
Interleukin-6 - metabolism
Melanoma - drug therapy
Melanoma - metabolism
Melanoma - pathology
Methimazole - analogs & derivatives
Methimazole - pharmacology
Mice
Mice, Nude
Mice, SCID
Pancreatic Neoplasms - drug therapy
Pancreatic Neoplasms - metabolism
Pancreatic Neoplasms - pathology
phenylmethimazole
Proto-Oncogene Proteins - antagonists & inhibitors
Proto-Oncogene Proteins - metabolism
RNA, Small Interfering - metabolism
Signal Transduction - drug effects
Signal Transduction - physiology
Skin Neoplasms - drug therapy
Skin Neoplasms - metabolism
Skin Neoplasms - pathology
STAT3 Transcription Factor - antagonists & inhibitors
STAT3 Transcription Factor - metabolism
Thiones - pharmacology
Toll-Like Receptor 3 - antagonists & inhibitors
Toll-Like Receptor 3 - genetics
Toll-Like Receptor 3 - metabolism
Toll-like receptors
Wnt Proteins - antagonists & inhibitors
Wnt Proteins - metabolism
Wnt-5a Protein
Wnt5a
title Phenylmethimazole Decreases Toll-Like Receptor 3 and Noncanonical Wnt5a Expression in Pancreatic Cancer and Melanoma Together with Tumor Cell Growth and Migration
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