Phospholipase A2 Modulates Different Subtypes of Excitatory Amino Acid Receptors: Autoradiographic Evidence
Abstract: Exogenous phospholipases have been used extensively as tools to study the role of membrane lipids in receptor mechanisms. We used in vitro quantitative autoradiography to evaluate the effect of phospholipase A2 (PLA2) on N-methyl-D-aspartate (NMDA) and non-NMDA glutamate receptors in rat b...
Ausführliche Beschreibung
Autor*in: |
Catania, M. V. [verfasserIn] Hollingsworth, Z. [verfasserIn] Penney, J. B. [verfasserIn] |
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E-Artikel |
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Erschienen: |
Oxford, UK: Blackwell Publishing Ltd ; 1993 |
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Online-Ressource |
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Reproduktion: |
2006 ; Blackwell Publishing Journal Backfiles 1879-2005 |
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Übergeordnetes Werk: |
In: Journal of neurochemistry - Oxford : Wiley-Blackwell, 1956, 60(1993), 1, Seite 0 |
Übergeordnetes Werk: |
volume:60 ; year:1993 ; number:1 ; pages:0 |
Links: |
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DOI / URN: |
10.1111/j.1471-4159.1993.tb05843.x |
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10.1111/j.1471-4159.1993.tb05843.x doi (DE-627)NLEJ240252284 DE-627 ger DE-627 rakwb Catania, M. V. verfasserin aut Phospholipase A2 Modulates Different Subtypes of Excitatory Amino Acid Receptors: Autoradiographic Evidence Oxford, UK Blackwell Publishing Ltd 1993 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Abstract: Exogenous phospholipases have been used extensively as tools to study the role of membrane lipids in receptor mechanisms. We used in vitro quantitative autoradiography to evaluate the effect of phospholipase A2 (PLA2) on N-methyl-D-aspartate (NMDA) and non-NMDA glutamate receptors in rat brain. PLA2 pretreatment induced a significant increase in α-[3H]amino-3-hydroxy-5-methylisoxazole-4-propionate ([3H]AMPA) binding in the stratum radiatum of the CA1 region of the hippocampus and in the stratum moleculare of the cerebellum. No modification of [3H]AMPA binding was found in the stratum pyramidale of the hippocampus at different ligand concentrations. [3H]-Glutamate binding to the metabotropic glutamate receptor and the non-NMDA-, non-kainate-, non-quisqualate-sensitive [3H]glutamate binding site were also increased by PLA2 pretreatment. [3H]Kainate binding and NMDA-sensitive [3H]glutamate binding were minimally affected by the enzyme pretreatment. The PLA2 effect was reversed by EGTA, the PLA2 inhibitor p-bromophenacyl bromide, and prolonged pretreatment with heat. Bovine serum albumin (1%) prevented the increase in metabotropic binding by PLA2. Arachidonic acid failed to mimic the PLA2 effect on metabotropic binding. These results indicate that PLA2 can selectively modulate certain subtypes of excitatory amino acid receptors. This effect is due to the enzymatic activity but is probably not correlated with the formation of arachidonic acid metabolites. Independent of their possible physiological implications, our results provide the first autoradiographic evidence that an enzymatic treatment can selectively affect the binding properties of excitatory amino acid receptors in different regions of the CNS. 2006 Blackwell Publishing Journal Backfiles 1879-2005 |2006|||||||||| Phospholipase A Hollingsworth, Z. verfasserin aut Penney, J. B. verfasserin aut Young, A. B. oth In Journal of neurochemistry Oxford : Wiley-Blackwell, 1956 60(1993), 1, Seite 0 Online-Ressource (DE-627)NLEJ243927584 (DE-600)2020528-4 1471-4159 nnns volume:60 year:1993 number:1 pages:0 http://dx.doi.org/10.1111/j.1471-4159.1993.tb05843.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 60 1993 1 0 |
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10.1111/j.1471-4159.1993.tb05843.x doi (DE-627)NLEJ240252284 DE-627 ger DE-627 rakwb Catania, M. V. verfasserin aut Phospholipase A2 Modulates Different Subtypes of Excitatory Amino Acid Receptors: Autoradiographic Evidence Oxford, UK Blackwell Publishing Ltd 1993 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Abstract: Exogenous phospholipases have been used extensively as tools to study the role of membrane lipids in receptor mechanisms. We used in vitro quantitative autoradiography to evaluate the effect of phospholipase A2 (PLA2) on N-methyl-D-aspartate (NMDA) and non-NMDA glutamate receptors in rat brain. PLA2 pretreatment induced a significant increase in α-[3H]amino-3-hydroxy-5-methylisoxazole-4-propionate ([3H]AMPA) binding in the stratum radiatum of the CA1 region of the hippocampus and in the stratum moleculare of the cerebellum. No modification of [3H]AMPA binding was found in the stratum pyramidale of the hippocampus at different ligand concentrations. [3H]-Glutamate binding to the metabotropic glutamate receptor and the non-NMDA-, non-kainate-, non-quisqualate-sensitive [3H]glutamate binding site were also increased by PLA2 pretreatment. [3H]Kainate binding and NMDA-sensitive [3H]glutamate binding were minimally affected by the enzyme pretreatment. The PLA2 effect was reversed by EGTA, the PLA2 inhibitor p-bromophenacyl bromide, and prolonged pretreatment with heat. Bovine serum albumin (1%) prevented the increase in metabotropic binding by PLA2. Arachidonic acid failed to mimic the PLA2 effect on metabotropic binding. These results indicate that PLA2 can selectively modulate certain subtypes of excitatory amino acid receptors. This effect is due to the enzymatic activity but is probably not correlated with the formation of arachidonic acid metabolites. Independent of their possible physiological implications, our results provide the first autoradiographic evidence that an enzymatic treatment can selectively affect the binding properties of excitatory amino acid receptors in different regions of the CNS. 2006 Blackwell Publishing Journal Backfiles 1879-2005 |2006|||||||||| Phospholipase A Hollingsworth, Z. verfasserin aut Penney, J. B. verfasserin aut Young, A. B. oth In Journal of neurochemistry Oxford : Wiley-Blackwell, 1956 60(1993), 1, Seite 0 Online-Ressource (DE-627)NLEJ243927584 (DE-600)2020528-4 1471-4159 nnns volume:60 year:1993 number:1 pages:0 http://dx.doi.org/10.1111/j.1471-4159.1993.tb05843.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 60 1993 1 0 |
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10.1111/j.1471-4159.1993.tb05843.x doi (DE-627)NLEJ240252284 DE-627 ger DE-627 rakwb Catania, M. V. verfasserin aut Phospholipase A2 Modulates Different Subtypes of Excitatory Amino Acid Receptors: Autoradiographic Evidence Oxford, UK Blackwell Publishing Ltd 1993 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Abstract: Exogenous phospholipases have been used extensively as tools to study the role of membrane lipids in receptor mechanisms. We used in vitro quantitative autoradiography to evaluate the effect of phospholipase A2 (PLA2) on N-methyl-D-aspartate (NMDA) and non-NMDA glutamate receptors in rat brain. PLA2 pretreatment induced a significant increase in α-[3H]amino-3-hydroxy-5-methylisoxazole-4-propionate ([3H]AMPA) binding in the stratum radiatum of the CA1 region of the hippocampus and in the stratum moleculare of the cerebellum. No modification of [3H]AMPA binding was found in the stratum pyramidale of the hippocampus at different ligand concentrations. [3H]-Glutamate binding to the metabotropic glutamate receptor and the non-NMDA-, non-kainate-, non-quisqualate-sensitive [3H]glutamate binding site were also increased by PLA2 pretreatment. [3H]Kainate binding and NMDA-sensitive [3H]glutamate binding were minimally affected by the enzyme pretreatment. The PLA2 effect was reversed by EGTA, the PLA2 inhibitor p-bromophenacyl bromide, and prolonged pretreatment with heat. Bovine serum albumin (1%) prevented the increase in metabotropic binding by PLA2. Arachidonic acid failed to mimic the PLA2 effect on metabotropic binding. These results indicate that PLA2 can selectively modulate certain subtypes of excitatory amino acid receptors. This effect is due to the enzymatic activity but is probably not correlated with the formation of arachidonic acid metabolites. Independent of their possible physiological implications, our results provide the first autoradiographic evidence that an enzymatic treatment can selectively affect the binding properties of excitatory amino acid receptors in different regions of the CNS. 2006 Blackwell Publishing Journal Backfiles 1879-2005 |2006|||||||||| Phospholipase A Hollingsworth, Z. verfasserin aut Penney, J. B. verfasserin aut Young, A. B. oth In Journal of neurochemistry Oxford : Wiley-Blackwell, 1956 60(1993), 1, Seite 0 Online-Ressource (DE-627)NLEJ243927584 (DE-600)2020528-4 1471-4159 nnns volume:60 year:1993 number:1 pages:0 http://dx.doi.org/10.1111/j.1471-4159.1993.tb05843.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 60 1993 1 0 |
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10.1111/j.1471-4159.1993.tb05843.x doi (DE-627)NLEJ240252284 DE-627 ger DE-627 rakwb Catania, M. V. verfasserin aut Phospholipase A2 Modulates Different Subtypes of Excitatory Amino Acid Receptors: Autoradiographic Evidence Oxford, UK Blackwell Publishing Ltd 1993 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Abstract: Exogenous phospholipases have been used extensively as tools to study the role of membrane lipids in receptor mechanisms. We used in vitro quantitative autoradiography to evaluate the effect of phospholipase A2 (PLA2) on N-methyl-D-aspartate (NMDA) and non-NMDA glutamate receptors in rat brain. PLA2 pretreatment induced a significant increase in α-[3H]amino-3-hydroxy-5-methylisoxazole-4-propionate ([3H]AMPA) binding in the stratum radiatum of the CA1 region of the hippocampus and in the stratum moleculare of the cerebellum. No modification of [3H]AMPA binding was found in the stratum pyramidale of the hippocampus at different ligand concentrations. [3H]-Glutamate binding to the metabotropic glutamate receptor and the non-NMDA-, non-kainate-, non-quisqualate-sensitive [3H]glutamate binding site were also increased by PLA2 pretreatment. [3H]Kainate binding and NMDA-sensitive [3H]glutamate binding were minimally affected by the enzyme pretreatment. The PLA2 effect was reversed by EGTA, the PLA2 inhibitor p-bromophenacyl bromide, and prolonged pretreatment with heat. Bovine serum albumin (1%) prevented the increase in metabotropic binding by PLA2. Arachidonic acid failed to mimic the PLA2 effect on metabotropic binding. These results indicate that PLA2 can selectively modulate certain subtypes of excitatory amino acid receptors. This effect is due to the enzymatic activity but is probably not correlated with the formation of arachidonic acid metabolites. Independent of their possible physiological implications, our results provide the first autoradiographic evidence that an enzymatic treatment can selectively affect the binding properties of excitatory amino acid receptors in different regions of the CNS. 2006 Blackwell Publishing Journal Backfiles 1879-2005 |2006|||||||||| Phospholipase A Hollingsworth, Z. verfasserin aut Penney, J. B. verfasserin aut Young, A. B. oth In Journal of neurochemistry Oxford : Wiley-Blackwell, 1956 60(1993), 1, Seite 0 Online-Ressource (DE-627)NLEJ243927584 (DE-600)2020528-4 1471-4159 nnns volume:60 year:1993 number:1 pages:0 http://dx.doi.org/10.1111/j.1471-4159.1993.tb05843.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 60 1993 1 0 |
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10.1111/j.1471-4159.1993.tb05843.x doi (DE-627)NLEJ240252284 DE-627 ger DE-627 rakwb Catania, M. V. verfasserin aut Phospholipase A2 Modulates Different Subtypes of Excitatory Amino Acid Receptors: Autoradiographic Evidence Oxford, UK Blackwell Publishing Ltd 1993 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Abstract: Exogenous phospholipases have been used extensively as tools to study the role of membrane lipids in receptor mechanisms. We used in vitro quantitative autoradiography to evaluate the effect of phospholipase A2 (PLA2) on N-methyl-D-aspartate (NMDA) and non-NMDA glutamate receptors in rat brain. PLA2 pretreatment induced a significant increase in α-[3H]amino-3-hydroxy-5-methylisoxazole-4-propionate ([3H]AMPA) binding in the stratum radiatum of the CA1 region of the hippocampus and in the stratum moleculare of the cerebellum. No modification of [3H]AMPA binding was found in the stratum pyramidale of the hippocampus at different ligand concentrations. [3H]-Glutamate binding to the metabotropic glutamate receptor and the non-NMDA-, non-kainate-, non-quisqualate-sensitive [3H]glutamate binding site were also increased by PLA2 pretreatment. [3H]Kainate binding and NMDA-sensitive [3H]glutamate binding were minimally affected by the enzyme pretreatment. The PLA2 effect was reversed by EGTA, the PLA2 inhibitor p-bromophenacyl bromide, and prolonged pretreatment with heat. Bovine serum albumin (1%) prevented the increase in metabotropic binding by PLA2. Arachidonic acid failed to mimic the PLA2 effect on metabotropic binding. These results indicate that PLA2 can selectively modulate certain subtypes of excitatory amino acid receptors. This effect is due to the enzymatic activity but is probably not correlated with the formation of arachidonic acid metabolites. Independent of their possible physiological implications, our results provide the first autoradiographic evidence that an enzymatic treatment can selectively affect the binding properties of excitatory amino acid receptors in different regions of the CNS. 2006 Blackwell Publishing Journal Backfiles 1879-2005 |2006|||||||||| Phospholipase A Hollingsworth, Z. verfasserin aut Penney, J. B. verfasserin aut Young, A. B. oth In Journal of neurochemistry Oxford : Wiley-Blackwell, 1956 60(1993), 1, Seite 0 Online-Ressource (DE-627)NLEJ243927584 (DE-600)2020528-4 1471-4159 nnns volume:60 year:1993 number:1 pages:0 http://dx.doi.org/10.1111/j.1471-4159.1993.tb05843.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 60 1993 1 0 |
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Phospholipase A2 Modulates Different Subtypes of Excitatory Amino Acid Receptors: Autoradiographic Evidence |
abstract |
Abstract: Exogenous phospholipases have been used extensively as tools to study the role of membrane lipids in receptor mechanisms. We used in vitro quantitative autoradiography to evaluate the effect of phospholipase A2 (PLA2) on N-methyl-D-aspartate (NMDA) and non-NMDA glutamate receptors in rat brain. PLA2 pretreatment induced a significant increase in α-[3H]amino-3-hydroxy-5-methylisoxazole-4-propionate ([3H]AMPA) binding in the stratum radiatum of the CA1 region of the hippocampus and in the stratum moleculare of the cerebellum. No modification of [3H]AMPA binding was found in the stratum pyramidale of the hippocampus at different ligand concentrations. [3H]-Glutamate binding to the metabotropic glutamate receptor and the non-NMDA-, non-kainate-, non-quisqualate-sensitive [3H]glutamate binding site were also increased by PLA2 pretreatment. [3H]Kainate binding and NMDA-sensitive [3H]glutamate binding were minimally affected by the enzyme pretreatment. The PLA2 effect was reversed by EGTA, the PLA2 inhibitor p-bromophenacyl bromide, and prolonged pretreatment with heat. Bovine serum albumin (1%) prevented the increase in metabotropic binding by PLA2. Arachidonic acid failed to mimic the PLA2 effect on metabotropic binding. These results indicate that PLA2 can selectively modulate certain subtypes of excitatory amino acid receptors. This effect is due to the enzymatic activity but is probably not correlated with the formation of arachidonic acid metabolites. Independent of their possible physiological implications, our results provide the first autoradiographic evidence that an enzymatic treatment can selectively affect the binding properties of excitatory amino acid receptors in different regions of the CNS. |
abstractGer |
Abstract: Exogenous phospholipases have been used extensively as tools to study the role of membrane lipids in receptor mechanisms. We used in vitro quantitative autoradiography to evaluate the effect of phospholipase A2 (PLA2) on N-methyl-D-aspartate (NMDA) and non-NMDA glutamate receptors in rat brain. PLA2 pretreatment induced a significant increase in α-[3H]amino-3-hydroxy-5-methylisoxazole-4-propionate ([3H]AMPA) binding in the stratum radiatum of the CA1 region of the hippocampus and in the stratum moleculare of the cerebellum. No modification of [3H]AMPA binding was found in the stratum pyramidale of the hippocampus at different ligand concentrations. [3H]-Glutamate binding to the metabotropic glutamate receptor and the non-NMDA-, non-kainate-, non-quisqualate-sensitive [3H]glutamate binding site were also increased by PLA2 pretreatment. [3H]Kainate binding and NMDA-sensitive [3H]glutamate binding were minimally affected by the enzyme pretreatment. The PLA2 effect was reversed by EGTA, the PLA2 inhibitor p-bromophenacyl bromide, and prolonged pretreatment with heat. Bovine serum albumin (1%) prevented the increase in metabotropic binding by PLA2. Arachidonic acid failed to mimic the PLA2 effect on metabotropic binding. These results indicate that PLA2 can selectively modulate certain subtypes of excitatory amino acid receptors. This effect is due to the enzymatic activity but is probably not correlated with the formation of arachidonic acid metabolites. Independent of their possible physiological implications, our results provide the first autoradiographic evidence that an enzymatic treatment can selectively affect the binding properties of excitatory amino acid receptors in different regions of the CNS. |
abstract_unstemmed |
Abstract: Exogenous phospholipases have been used extensively as tools to study the role of membrane lipids in receptor mechanisms. We used in vitro quantitative autoradiography to evaluate the effect of phospholipase A2 (PLA2) on N-methyl-D-aspartate (NMDA) and non-NMDA glutamate receptors in rat brain. PLA2 pretreatment induced a significant increase in α-[3H]amino-3-hydroxy-5-methylisoxazole-4-propionate ([3H]AMPA) binding in the stratum radiatum of the CA1 region of the hippocampus and in the stratum moleculare of the cerebellum. No modification of [3H]AMPA binding was found in the stratum pyramidale of the hippocampus at different ligand concentrations. [3H]-Glutamate binding to the metabotropic glutamate receptor and the non-NMDA-, non-kainate-, non-quisqualate-sensitive [3H]glutamate binding site were also increased by PLA2 pretreatment. [3H]Kainate binding and NMDA-sensitive [3H]glutamate binding were minimally affected by the enzyme pretreatment. The PLA2 effect was reversed by EGTA, the PLA2 inhibitor p-bromophenacyl bromide, and prolonged pretreatment with heat. Bovine serum albumin (1%) prevented the increase in metabotropic binding by PLA2. Arachidonic acid failed to mimic the PLA2 effect on metabotropic binding. These results indicate that PLA2 can selectively modulate certain subtypes of excitatory amino acid receptors. This effect is due to the enzymatic activity but is probably not correlated with the formation of arachidonic acid metabolites. Independent of their possible physiological implications, our results provide the first autoradiographic evidence that an enzymatic treatment can selectively affect the binding properties of excitatory amino acid receptors in different regions of the CNS. |
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title_short |
Phospholipase A2 Modulates Different Subtypes of Excitatory Amino Acid Receptors: Autoradiographic Evidence |
url |
http://dx.doi.org/10.1111/j.1471-4159.1993.tb05843.x |
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Hollingsworth, Z. Penney, J. B. Young, A. B. |
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Hollingsworth, Z. Penney, J. B. Young, A. B. |
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doi_str |
10.1111/j.1471-4159.1993.tb05843.x |
up_date |
2024-07-06T09:28:40.594Z |
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