PMID- 19012739 OWN - NLM STAT- MEDLINE DCOM- 20090224 LR - 20211020 IS - 1471-4159 (Electronic) IS - 0022-3042 (Print) IS - 0022-3042 (Linking) VI - 108 IP - 3 DP - 2009 Feb TI - Fibronectin stimulates TRPV1 translocation in primary sensory neurons. PG - 591-600 LID - 10.1111/j.1471-4159.2008.05779.x [doi] AB - Extracellular matrix (ECM) molecules are highly variable in their composition and receptor recognition. Their ubiquitous expression profile has been linked to roles in cell growth, differentiation, and survival. Recent work has identified certain ECM molecules that serve as dynamic signal modulators, versus the more-recognized role of chronic modulation of signal transduction. In this study, we investigated the role that fibronectin (FN) plays in the dynamic modulation of transient receptor potential family V type 1 receptor (TRPV1) translocation to the plasma membrane in trigeminal ganglia (TG) sensory neurons. Confocal immunofluorescence analyses identify co-expression of the TRPV1 receptor with integrin subunits that bind FN. TG neurons cultured upon or treated with FN experienced a leftward shift in the EC(50) of capsaicin-stimulated neuropeptide release. This FN-induced increase in TRPV1 sensitivity to activation is coupled by an increase in plasma membrane expression of TRPV1, as well as an increase in tyrosine phosphorylation of TRPV1 in TG neurons. Furthermore, TG neurons cultured on FN demonstrated an increase in capsaicin-mediated Ca(2+) accumulation relative to neurons cultured on poly-D-lysine. Data presented from these studies indicate that FN stimulates tyrosine-phosphorylation-dependent translocation of the TRPV1 receptor to the plasma membrane, identifying FN as a critical component of the ECM capable of sensory neuron sensitization. FAU - Jeske, Nathaniel A AU - Jeske NA AD - Department of Oral and Maxillofacial Surgery, University of Texas Health Science Center at San Antonio, San Antonio, Texas 78229-3900, USA. jeske@uthscsa.edu FAU - Patwardhan, Amol M AU - Patwardhan AM FAU - Henry, Michael A AU - Henry MA FAU - Milam, Stephen B AU - Milam SB LA - eng GR - R01 DE015371/DE/NIDCR NIH HHS/United States GR - R01 DE015371-04/DE/NIDCR NIH HHS/United States GR - DE013942/DE/NIDCR NIH HHS/United States GR - R01 DE013942/DE/NIDCR NIH HHS/United States GR - DE015371/DE/NIDCR NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural DEP - 20081111 PL - England TA - J Neurochem JT - Journal of neurochemistry JID - 2985190R RN - 0 (Fibronectins) RN - 0 (Integrins) RN - 0 (Neuropeptides) RN - 0 (TRPV Cation Channels) RN - 0 (Trpv1 protein, rat) RN - 42HK56048U (Tyrosine) RN - 6SO6U10H04 (Biotin) RN - EC 2.7.10.2 (src-Family Kinases) RN - JHB2QIZ69Z (Calcitonin Gene-Related Peptide) RN - S07O44R1ZM (Capsaicin) RN - SY7Q814VUP (Calcium) SB - IM MH - Animals MH - Biotin/metabolism MH - Blotting, Western MH - Calcitonin Gene-Related Peptide/physiology MH - Calcium/metabolism MH - Capsaicin/pharmacology MH - Cells, Cultured MH - Extracellular Matrix/drug effects/metabolism MH - Fibronectins/*pharmacology MH - Immunohistochemistry MH - Integrins/metabolism MH - Male MH - Neuropeptides/metabolism MH - Phosphorylation MH - Protein Transport/*drug effects MH - Rats MH - Rats, Sprague-Dawley MH - Sensory Receptor Cells/*drug effects/*metabolism MH - Stimulation, Chemical MH - TRPV Cation Channels/*genetics/*metabolism MH - Trigeminal Ganglion/cytology/drug effects/metabolism MH - Tyrosine/metabolism MH - src-Family Kinases/physiology PMC - PMC2678239 MID - NIHMS105683 EDAT- 2008/11/18 09:00 MHDA- 2009/02/25 09:00 PMCR- 2009/05/07 CRDT- 2008/11/18 09:00 PHST- 2008/11/18 09:00 [pubmed] PHST- 2009/02/25 09:00 [medline] PHST- 2008/11/18 09:00 [entrez] PHST- 2009/05/07 00:00 [pmc-release] AID - JNC5779 [pii] AID - 10.1111/j.1471-4159.2008.05779.x [doi] PST - ppublish SO - J Neurochem. 2009 Feb;108(3):591-600. doi: 10.1111/j.1471-4159.2008.05779.x. Epub 2008 Nov 11.