PMID- 23237228 OWN - NLM STAT- MEDLINE DCOM- 20130919 LR - 20220317 IS - 1743-6109 (Electronic) IS - 1743-6095 (Print) IS - 1743-6095 (Linking) VI - 10 IP - 3 DP - 2013 Mar TI - Sonic Hedgehog regulates brain-derived neurotrophic factor in normal and regenerating cavernous nerves. PG - 730-7 LID - 10.1111/jsm.12030 [doi] AB - INTRODUCTION: The cavernous nerve (CN) is commonly injured during prostatectomy. Manipulation of the nerve microenvironment is critical to improve regeneration and develop novel erectile dysfunction therapies. Sonic hedgehog (SHH) treatment promotes CN regeneration. The mechanism of how this occurs is unknown. Brain-derived neurotrophic factor (BDNF) facilitates return of erectile function after CN injury and it has been suggested in cortical neurons and the sciatic nerve that BDNF may be a target of SHH. AIM: To determine if SHH promotes CN regeneration through a BDNF-dependent mechanism. METHODS: Sprague Dawley rats underwent (i) bilateral CN crush (N = 15); (ii) SHH treatment of pelvic ganglia (PG)/CN (N = 10); (iii) SHH inhibition in PG/CN (N = 14 rats); (iv) CN crush with SHH treatment of PG/CN (N = 10 rats); (v) CN crush with SHH treatment and BDNF inhibition (N = 14 rats); and (vi) CN injury and SHH treatment of the penis (N = 23). MAIN OUTCOME MEASURES: BDNF and glial fibrillary acidic protein were quantified in PG/CN by Western, and a t-test was used to determine differences. RESULTS: In normal rats SHH inhibition in the PG/CN decreased BDNF 34% and SHH treatment increased BDNF 36%. BDNF was increased 44% in response to SHH treatment of crushed CNs, and inhibition of BDNF in crushed CNs treated with SHH protein hampers regeneration. CONCLUSIONS: SHH regulates BDNF in the normal and regenerating PG/CN. BDNF is part of the mechanism of how SHH promotes regeneration, thus providing an opportunity to further manipulate the nerve microenvironment with combination therapy to enhance regeneration. CI - (c) 2012 International Society for Sexual Medicine. FAU - Bond, Christopher W AU - Bond CW AD - Department of Urology, Northwestern University, Feinberg School of Medicine, Chicago, IL 60611, USA. FAU - Angeloni, Nicholas AU - Angeloni N FAU - Harrington, Daniel AU - Harrington D FAU - Stupp, Samuel AU - Stupp S FAU - Podlasek, Carol A AU - Podlasek CA LA - eng GR - R01 DK079184/DK/NIDDK NIH HHS/United States GR - DK079184/DK/NIDDK NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural DEP - 20121213 PL - Netherlands TA - J Sex Med JT - The journal of sexual medicine JID - 101230693 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Carbazoles) RN - 0 (Enzyme Inhibitors) RN - 0 (Glial Fibrillary Acidic Protein) RN - 0 (Hedgehog Proteins) RN - 0 (Indole Alkaloids) RN - 0 (Neuroprotective Agents) RN - 0 (Shh protein, rat) RN - 97161-97-2 (staurosporine aglycone) SB - IM MH - Animals MH - Brain-Derived Neurotrophic Factor/antagonists & inhibitors/*metabolism MH - Carbazoles/pharmacology MH - Enzyme Inhibitors/pharmacology MH - Glial Fibrillary Acidic Protein/metabolism MH - Hedgehog Proteins/antagonists & inhibitors/*pharmacology MH - Immunohistochemistry MH - Indole Alkaloids/pharmacology MH - Male MH - Nerve Regeneration/*drug effects MH - Neuroprotective Agents/*pharmacology MH - Penis/*innervation MH - Peripheral Nerve Injuries MH - Peripheral Nerves/*physiology MH - Rats PMC - PMC3593960 MID - NIHMS419137 EDAT- 2012/12/15 06:00 MHDA- 2013/09/21 06:00 PMCR- 2014/03/01 CRDT- 2012/12/15 06:00 PHST- 2012/12/15 06:00 [entrez] PHST- 2012/12/15 06:00 [pubmed] PHST- 2013/09/21 06:00 [medline] PHST- 2014/03/01 00:00 [pmc-release] AID - S1743-6095(15)30283-6 [pii] AID - 10.1111/jsm.12030 [doi] PST - ppublish SO - J Sex Med. 2013 Mar;10(3):730-7. doi: 10.1111/jsm.12030. Epub 2012 Dec 13.