title: Gene and stem cell therapy for erectile dysfunction.
abstract: Erectile dysfunction (ED) is defined as the inability to attain and/or maintain penile erection sufficient for satisfactory sexual performance. ED is a highly prevalent health problem with considerable impact on the quality of life of men and their partners. Although the treatment of ED with oral phosphodiesterase type V (PDE5) inhibitors is effective in a wide range of individuals, it is not efficacious in all patients. The failure of PDE5 inhibitors happens mainly in men with diabetes, non-nerve sparing radical prostatectomy, and high disease severity. Therefore, improved therapies based on a better understanding of the fundamental issues in erectile physiology and pathophysiology have recently been proposed. Here, we summarize studies on ED treatment using gene and stem cell therapies. Adenoviral-mediated intracavernosal transfer of therapeutic genes, such as endothelial nitric oxide synthase (eNOS), calcitonin gene-related peptide (CGRP), superoxide dismutase (SOD), and RhoA/Rho kinase and mesenchymal stem cell-based cell and gene therapy strategy for the treatment of age- and diabetes-related ED are the focus of this review.
authors.affiliation: Department of Pharmacology, Tulane University Health Sciences Center, New Orleans, LA 70112, USA.
authors.forename: W
authors.initials: W
authors.lastname: Deng
authors.forename: T J
authors.initials: TJ
authors.lastname: Bivalacqua
authors.forename: W J G
authors.initials: WJ
authors.lastname: Hellstrom
authors.forename: P J
authors.initials: PJ
authors.lastname: Kadowitz
mesh_terms: D000818:Animals; D015740:Calcitonin Gene-Related Peptide / Q000235:genetics; D007172:Erectile Dysfunction / Q000235:genetics / Q000628:therapy*; D005260:Female; D015316:Genetic Therapy / Q000379:methods*; D008297:Male; D045164:Mesenchymal Stem Cell Transplantation; D052250:Nitric Oxide Synthase Type III / Q000235:genetics; D013234:Stem Cells / Q000502:physiology*; D013482:Superoxide Dismutase / Q000235:genetics; D020742:rhoA GTP-Binding Protein / Q000235:genetics
chemical_list: D052250:Nitric Oxide Synthase Type III; D013482:Superoxide Dismutase; D020742:rhoA GTP-Binding Protein; D015740:Calcitonin Gene-Related Peptide