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Caveolae and corpus cavernosum

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https://www.readbyqxmd.com/read/20553910/changes-in-caveolin-1-expression-and-vasoreactivity-in-the-aorta-and-corpus-cavernosum-of-fructose-and-streptozotocin-induced-diabetic-rats
#1
Kübra H Elçioğlu, Levent Kabasakal, Sule Cetinel, Gazi Conturk, Sena F Sezen, Gül Ayanoğlu-Dülger
Hyperglycemia is a common defining feature in the development of endothelial dysfunction which plays a key role in the pathogenesis of both type 1 and type 2 diabetes. Caveolin-1 is the main structural component of caveolae which might be involved in the pathophysiology of macrovascular complications of diabetes. In this study we aimed to observe the effect of caveolin-1 on functional responses of aorta and corpus cavernosum in the streptozotocin and fructose-induced diabetes groups. Type 1 diabetes was induced by intraperitoneal administration of streptozotocin (60 mg/kg),...
September 10, 2010: European Journal of Pharmacology
https://www.readbyqxmd.com/read/19068211/impaired-nerve-mediated-relaxation-of-penile-tissue-from-caveolin-1-deficient-mice
#2
Yulia Shakirova, Petter Hedlund, Karl Swärd
Caveolin-1-deficient mice are characterised by a high vascular NO production. Because NO-dependent smooth muscle relaxation is considered to play an important role in penile erection, it was hypothesized that the erectile function would be affected by genetic ablation of caveolae. This study assessed penile erectile mechanisms in caveolin-1 knockout (KO) mice ex vivo. Immunofluorescence confirmed caveolin-1 expression primarily in the endothelium surrounding the sinusoids of the corpus cavernosum, but also in smooth muscle cells of the sinusoidal bundles...
January 14, 2009: European Journal of Pharmacology
https://www.readbyqxmd.com/read/16609918/differential-expression-of-caveolin-3-in-mouse-smooth-muscle-cells-in-vivo
#3
Hiroshi Kogo, Shin-ya Ito, Yoshinobu Moritoki, Hiroki Kurahashi, Toyoshi Fujimoto
Expression of caveolin-1 and -3 in mouse smooth muscle cells in vivo was examined by immunohistochemistry. Caveolin-1 was detected in almost all smooth muscles examined, except for the pupillary dilator muscle, whereas caveolin-3 was present only in smooth muscles of some specific tissues. In the eye, the pupillary sphincter muscle was intensely positive for caveolin-3, whereas the ciliary muscle and pupillary dilator muscle were negative. In the gastrointestinal tract, caveolin-3 was detected in the inner circular layer, but not in the outer longitudinal layer...
May 2006: Cell and Tissue Research
https://www.readbyqxmd.com/read/16373436/penile-erection-requires-association-of-soluble-guanylyl-cyclase-with-endothelial-caveolin-1-in-rat-corpus-cavernosum
#4
A Elizabeth Linder, Romulo Leite, Kimberly Lauria, Thomas M Mills, R Clinton Webb
Erectile dysfunction is caused by a variety of pathogenic factors, particularly impaired formation and action of nitric oxide (NO). NO released from nerve endings and corpus cavernosum endothelial cells plays a crucial role in initiating and maintaining increased intracavernous pressure, penile vasodilatation, and penile erection. Classically, these effects are dependent on cGMP synthesized during activation of soluble guanylyl cyclase (sGC) by NO in smooth muscle cells. The enzyme NO synthase in endothelial cells has been localized to caveolae, small invaginations of the plasma membrane rich in cholesterol...
May 2006: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
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