Inhibitory Effects of Negatively Charged Liposomes on Nitric Oxide Production from Macrophages Stimulated by LPS
The effects of liposomes on nitric oxide (NO) productions induced by lipopolysaccharide were investigated using thioglycollate-induced mouse peritoneal macrophages. Negatively charged liposomes composed of phosphatidic acid (PA-liposomes) and phosphatidylserine (PS-liposomes) showed inhibitory effec...
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| Veröffentlicht in: | Biochemical and biophysical research communications 1996-03, Vol.220 (1), p.1-6 |
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| creator | Aramaki, Yukihiko Nitta, Fumie Matsuno, Ryozou Morimura, Yumiko Tsuchiya, Seishi |
| description | The effects of liposomes on nitric oxide (NO) productions induced by lipopolysaccharide were investigated using thioglycollate-induced mouse peritoneal macrophages. Negatively charged liposomes composed of phosphatidic acid (PA-liposomes) and phosphatidylserine (PS-liposomes) showed inhibitory effect on NO production in a dose dependent manner, but not in liposomes composed of phosphatidylcholine (PC-liposomes). Pretreatment of macrophages with liposomes was required in order to observe the inhibitory effect on NO production. NO production induced by IFN-γ was also inhibited by negatively charged liposomes. To clarify the mechanism of inhibitory effect of liposomes, immune blotting was performed using anti mouse inducible nitric oxide synthase (iNOS) antibody. An immunoreactive band at 130 kDa was observed in the extract of control and PC-liposome-treated macrophages, whereas a faint or no band was observed in PS- and PA-liposome-treated ones. These findings revealed that the inhibition of NO production by negatively charged liposomes could be a result in the inhibition of iNOS induction, but not enzyme activity. |
| doi_str_mv | 10.1006/bbrc.1996.0346 |
| format | Article |
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Negatively charged liposomes composed of phosphatidic acid (PA-liposomes) and phosphatidylserine (PS-liposomes) showed inhibitory effect on NO production in a dose dependent manner, but not in liposomes composed of phosphatidylcholine (PC-liposomes). Pretreatment of macrophages with liposomes was required in order to observe the inhibitory effect on NO production. NO production induced by IFN-γ was also inhibited by negatively charged liposomes. To clarify the mechanism of inhibitory effect of liposomes, immune blotting was performed using anti mouse inducible nitric oxide synthase (iNOS) antibody. An immunoreactive band at 130 kDa was observed in the extract of control and PC-liposome-treated macrophages, whereas a faint or no band was observed in PS- and PA-liposome-treated ones. 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Negatively charged liposomes composed of phosphatidic acid (PA-liposomes) and phosphatidylserine (PS-liposomes) showed inhibitory effect on NO production in a dose dependent manner, but not in liposomes composed of phosphatidylcholine (PC-liposomes). Pretreatment of macrophages with liposomes was required in order to observe the inhibitory effect on NO production. NO production induced by IFN-γ was also inhibited by negatively charged liposomes. To clarify the mechanism of inhibitory effect of liposomes, immune blotting was performed using anti mouse inducible nitric oxide synthase (iNOS) antibody. An immunoreactive band at 130 kDa was observed in the extract of control and PC-liposome-treated macrophages, whereas a faint or no band was observed in PS- and PA-liposome-treated ones. These findings revealed that the inhibition of NO production by negatively charged liposomes could be a result in the inhibition of iNOS induction, but not enzyme activity.</description><subject>Animals</subject><subject>Blotting, Western</subject><subject>Electrochemistry</subject><subject>Immunochemistry</subject><subject>In Vitro Techniques</subject><subject>Integrin alphaXbeta2 - metabolism</subject><subject>Interferon-gamma - pharmacology</subject><subject>Kinetics</subject><subject>Lipopolysaccharide Receptors - metabolism</subject><subject>Lipopolysaccharides - pharmacology</subject><subject>Liposomes - chemistry</subject><subject>Liposomes - pharmacology</subject><subject>Macrophages, Peritoneal - drug effects</subject><subject>Macrophages, Peritoneal - immunology</subject><subject>Macrophages, Peritoneal - metabolism</subject><subject>Mice</subject><subject>Mice, Inbred C3H</subject><subject>Molecular Weight</subject><subject>Nitric Oxide - biosynthesis</subject><subject>Nitric Oxide Synthase - biosynthesis</subject><subject>Nitric Oxide Synthase - chemistry</subject><subject>Nitric Oxide Synthase - isolation & purification</subject><subject>Phosphatidic Acids - chemistry</subject><subject>Phosphatidic Acids - pharmacology</subject><subject>Phosphatidylcholines - chemistry</subject><subject>Phosphatidylcholines - pharmacology</subject><subject>Phosphatidylserines - chemistry</subject><subject>Phosphatidylserines - pharmacology</subject><issn>0006-291X</issn><issn>1090-2104</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1996</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkcGLEzEUh4Moa129ehNy8jY1LzNJm6OUVRfq7sIqeAtJ5qWNzDRjklnsf29Kizfx9CC_Lz947yPkLbAlMCY_WJvcEpSSS9Z28hlZAFOs4cC652TBKtFwBT9eklc5_2QMoJPqilytJeNrLhZkuj3sgw0lpiO98R5dyTR6eoc7U8ITDke62Zu0w55uwxRzHLHmB3oXSgqO3v8OPdKHFPvZlVDffYoj_WpcitPe7Cr7WMI4D6bUAnuk24fH1-SFN0PGN5d5Tb5_uvm2-dJs7z_fbj5uG9e1sjSdQ_BWegApuLPMOlByrRwavwJwnXNc9ZJbL70RPbfGCgbcSnQrD63w7TV5f-6dUvw1Yy56DNnhMJgDxjnr1UoJpdruvyAIJQUTbQWXZ7Bul3NCr6cURpOOGpg-udAnF_rkQp9c1A_vLs2zHbH_i1-OX_P1Ocd6h6eASWcX8OCwD6mK0H0M_6r-A-lPmjE</recordid><startdate>19960307</startdate><enddate>19960307</enddate><creator>Aramaki, Yukihiko</creator><creator>Nitta, Fumie</creator><creator>Matsuno, Ryozou</creator><creator>Morimura, Yumiko</creator><creator>Tsuchiya, Seishi</creator><general>Elsevier Inc</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>7T5</scope><scope>H94</scope><scope>7X8</scope></search><sort><creationdate>19960307</creationdate><title>Inhibitory Effects of Negatively Charged Liposomes on Nitric Oxide Production from Macrophages Stimulated by LPS</title><author>Aramaki, Yukihiko ; Nitta, Fumie ; Matsuno, Ryozou ; Morimura, Yumiko ; Tsuchiya, Seishi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c436t-4ce1fb6f11652cb0bc19689ceaf711c4cc29d62bf6fa5d2bab5012b6ec7f135f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1996</creationdate><topic>Animals</topic><topic>Blotting, Western</topic><topic>Electrochemistry</topic><topic>Immunochemistry</topic><topic>In Vitro Techniques</topic><topic>Integrin alphaXbeta2 - metabolism</topic><topic>Interferon-gamma - pharmacology</topic><topic>Kinetics</topic><topic>Lipopolysaccharide Receptors - metabolism</topic><topic>Lipopolysaccharides - pharmacology</topic><topic>Liposomes - chemistry</topic><topic>Liposomes - pharmacology</topic><topic>Macrophages, Peritoneal - drug effects</topic><topic>Macrophages, Peritoneal - immunology</topic><topic>Macrophages, Peritoneal - metabolism</topic><topic>Mice</topic><topic>Mice, Inbred C3H</topic><topic>Molecular Weight</topic><topic>Nitric Oxide - biosynthesis</topic><topic>Nitric Oxide Synthase - biosynthesis</topic><topic>Nitric Oxide Synthase - chemistry</topic><topic>Nitric Oxide Synthase - isolation & purification</topic><topic>Phosphatidic Acids - chemistry</topic><topic>Phosphatidic Acids - pharmacology</topic><topic>Phosphatidylcholines - chemistry</topic><topic>Phosphatidylcholines - pharmacology</topic><topic>Phosphatidylserines - chemistry</topic><topic>Phosphatidylserines - pharmacology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Aramaki, Yukihiko</creatorcontrib><creatorcontrib>Nitta, Fumie</creatorcontrib><creatorcontrib>Matsuno, Ryozou</creatorcontrib><creatorcontrib>Morimura, Yumiko</creatorcontrib><creatorcontrib>Tsuchiya, Seishi</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Immunology Abstracts</collection><collection>AIDS and Cancer Research Abstracts</collection><collection>MEDLINE - Academic</collection><jtitle>Biochemical and biophysical research communications</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Aramaki, Yukihiko</au><au>Nitta, Fumie</au><au>Matsuno, Ryozou</au><au>Morimura, Yumiko</au><au>Tsuchiya, Seishi</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Inhibitory Effects of Negatively Charged Liposomes on Nitric Oxide Production from Macrophages Stimulated by LPS</atitle><jtitle>Biochemical and biophysical research communications</jtitle><addtitle>Biochem Biophys Res Commun</addtitle><date>1996-03-07</date><risdate>1996</risdate><volume>220</volume><issue>1</issue><spage>1</spage><epage>6</epage><pages>1-6</pages><issn>0006-291X</issn><eissn>1090-2104</eissn><abstract>The effects of liposomes on nitric oxide (NO) productions induced by lipopolysaccharide were investigated using thioglycollate-induced mouse peritoneal macrophages. Negatively charged liposomes composed of phosphatidic acid (PA-liposomes) and phosphatidylserine (PS-liposomes) showed inhibitory effect on NO production in a dose dependent manner, but not in liposomes composed of phosphatidylcholine (PC-liposomes). Pretreatment of macrophages with liposomes was required in order to observe the inhibitory effect on NO production. NO production induced by IFN-γ was also inhibited by negatively charged liposomes. To clarify the mechanism of inhibitory effect of liposomes, immune blotting was performed using anti mouse inducible nitric oxide synthase (iNOS) antibody. An immunoreactive band at 130 kDa was observed in the extract of control and PC-liposome-treated macrophages, whereas a faint or no band was observed in PS- and PA-liposome-treated ones. 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| subjects | Animals Blotting, Western Electrochemistry Immunochemistry In Vitro Techniques Integrin alphaXbeta2 - metabolism Interferon-gamma - pharmacology Kinetics Lipopolysaccharide Receptors - metabolism Lipopolysaccharides - pharmacology Liposomes - chemistry Liposomes - pharmacology Macrophages, Peritoneal - drug effects Macrophages, Peritoneal - immunology Macrophages, Peritoneal - metabolism Mice Mice, Inbred C3H Molecular Weight Nitric Oxide - biosynthesis Nitric Oxide Synthase - biosynthesis Nitric Oxide Synthase - chemistry Nitric Oxide Synthase - isolation & purification Phosphatidic Acids - chemistry Phosphatidic Acids - pharmacology Phosphatidylcholines - chemistry Phosphatidylcholines - pharmacology Phosphatidylserines - chemistry Phosphatidylserines - pharmacology |
| title | Inhibitory Effects of Negatively Charged Liposomes on Nitric Oxide Production from Macrophages Stimulated by LPS |
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