Annexin A2 regulates TRPA1-dependent nociception.
The transient receptor potential A1 (TRPA1) channel is essential for vertebrate pain. Even though TRPA1 activation by ligands has been studied extensively, the molecular machinery regulating TRPA1 is only poorly understood. Using an unbiased proteomics-based approach we uncovered the physical associ...
| Main Authors: | , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
Society for Neuroscience
2014
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| _version_ | 1797060887928897536 |
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| author | Avenali, L Narayanan, P Rouwette, T Cervellini, I Sereda, M Gomez-Varela, D Schmidt, M |
| author_facet | Avenali, L Narayanan, P Rouwette, T Cervellini, I Sereda, M Gomez-Varela, D Schmidt, M |
| author_sort | Avenali, L |
| collection | OXFORD |
| description | The transient receptor potential A1 (TRPA1) channel is essential for vertebrate pain. Even though TRPA1 activation by ligands has been studied extensively, the molecular machinery regulating TRPA1 is only poorly understood. Using an unbiased proteomics-based approach we uncovered the physical association of Annexin A2 (AnxA2) with native TRPA1 in mouse sensory neurons. AnxA2 is enriched in a subpopulation of sensory neurons and coexpressed with TRPA1. Furthermore, we observe an increase of TRPA1 membrane levels in cultured sensory neurons from AnxA2-deficient mice. This is reflected by our calcium imaging experiments revealing higher responsiveness upon TRPA1 activation in AnxA2-deficient neurons. In vivo these findings are associated with enhanced nocifensive behaviors specifically in TRPA1-dependent paradigms of acute and inflammatory pain, while heat and mechanical sensitivity as well as TRPV1-mediated pain are preserved in AnxA2-deficient mice. Our results support a model whereby AnxA2 limits the availability of TRPA1 channels to regulate nociceptive signaling in vertebrates. |
| first_indexed | 2024-03-06T20:23:18Z |
| format | Journal article |
| id | oxford-uuid:2e8e9e12-0465-490b-a9bb-e4f87e5df276 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T20:23:18Z |
| publishDate | 2014 |
| publisher | Society for Neuroscience |
| record_format | dspace |
| spelling | oxford-uuid:2e8e9e12-0465-490b-a9bb-e4f87e5df2762022-03-26T12:49:39ZAnnexin A2 regulates TRPA1-dependent nociception.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:2e8e9e12-0465-490b-a9bb-e4f87e5df276EnglishSymplectic Elements at OxfordSociety for Neuroscience2014Avenali, LNarayanan, PRouwette, TCervellini, ISereda, MGomez-Varela, DSchmidt, MThe transient receptor potential A1 (TRPA1) channel is essential for vertebrate pain. Even though TRPA1 activation by ligands has been studied extensively, the molecular machinery regulating TRPA1 is only poorly understood. Using an unbiased proteomics-based approach we uncovered the physical association of Annexin A2 (AnxA2) with native TRPA1 in mouse sensory neurons. AnxA2 is enriched in a subpopulation of sensory neurons and coexpressed with TRPA1. Furthermore, we observe an increase of TRPA1 membrane levels in cultured sensory neurons from AnxA2-deficient mice. This is reflected by our calcium imaging experiments revealing higher responsiveness upon TRPA1 activation in AnxA2-deficient neurons. In vivo these findings are associated with enhanced nocifensive behaviors specifically in TRPA1-dependent paradigms of acute and inflammatory pain, while heat and mechanical sensitivity as well as TRPV1-mediated pain are preserved in AnxA2-deficient mice. Our results support a model whereby AnxA2 limits the availability of TRPA1 channels to regulate nociceptive signaling in vertebrates. |
| spellingShingle | Avenali, L Narayanan, P Rouwette, T Cervellini, I Sereda, M Gomez-Varela, D Schmidt, M Annexin A2 regulates TRPA1-dependent nociception. |
| title | Annexin A2 regulates TRPA1-dependent nociception. |
| title_full | Annexin A2 regulates TRPA1-dependent nociception. |
| title_fullStr | Annexin A2 regulates TRPA1-dependent nociception. |
| title_full_unstemmed | Annexin A2 regulates TRPA1-dependent nociception. |
| title_short | Annexin A2 regulates TRPA1-dependent nociception. |
| title_sort | annexin a2 regulates trpa1 dependent nociception |
| work_keys_str_mv | AT avenalil annexina2regulatestrpa1dependentnociception AT narayananp annexina2regulatestrpa1dependentnociception AT rouwettet annexina2regulatestrpa1dependentnociception AT cervellinii annexina2regulatestrpa1dependentnociception AT seredam annexina2regulatestrpa1dependentnociception AT gomezvarelad annexina2regulatestrpa1dependentnociception AT schmidtm annexina2regulatestrpa1dependentnociception |