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Pathological Significance of Macrophages in Erectile Dysfunction Including Peyronie's Disease
Yasuyoshi Miyata1, Tomohiro Matsuo1, Yuichiro Nakamura1
1Department of Urology, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8501, Japan.
Abstract:
Erectile function is regulated by complex mechanisms centered on vascular- and nerve-related systems. Hence, dysregulation of these systems leads to erectile dysfunction (ED), which causes mental distress and decreases the quality of life of patients and their partners. At the molecular level, many factors, such as fibrosis, lipid metabolism abnormalities, the immune system, and stem cells, play crucial roles in the etiology and development of ED. Although phosphodiesterase type 5 (PDE5) inhibitors are currently the standard treatment agents for patients with ED, they are effective only in a subgroup of patients. Therefore, further insight into the pathological mechanism underlying ED is needed to discuss ED treatment strategies. In this review, we focused on the biological and pathological significance of macrophages in ED because the interaction of macrophages with ED-related mechanisms have not been well explored, despite their important roles in vasculogenic and neurogenic diseases. Furthermore, we examined the pathological significance of macrophages in Peyronie's disease (PD), a cause of ED characterized by penile deformation (visible curvature) during erection and pain. Although microinjury and the subsequent abnormal healing process of the tunica albuginea are known to be important processes in this disease, the detailed etiology and pathophysiology of PD are not fully understood. This is the first review on the pathological role of macrophages in PD.
Insights
Macrophages play a critical role in erectile dysfunction (ED) and Peyronie's disease (PD). Understanding their function offers new avenues for treating these conditions affecting quality of life.
Area of Science:
- Urology
- Immunology
- Pathology
Background:
- Erectile dysfunction (ED) arises from vascular and nerve dysregulation, impacting patient quality of life.
- Current treatments like PDE5 inhibitors are not universally effective, necessitating deeper understanding of ED pathology.
- Macrophages are implicated in various diseases but their specific role in ED and Peyronie's disease (PD) remains underexplored.
Purpose of the Study:
- To review the biological and pathological significance of macrophages in erectile dysfunction (ED).
- To examine the role of macrophages in the pathophysiology of Peyronie's disease (PD), a cause of ED.
- To highlight the unexplored interaction between macrophages and ED-related mechanisms.
Main Methods:
- Literature review focusing on the role of macrophages in ED.
- Analysis of existing research on macrophage involvement in vasculogenic and neurogenic diseases.
- Examination of pathological mechanisms in Peyronie's disease (PD) related to macrophages.
Main Results:
- Macrophages are crucial in the molecular etiology and development of ED.
- The review explores the pathological significance of macrophages in Peyronie's disease (PD).
- This is the first review to specifically address the pathological role of macrophages in PD.
Conclusions:
- Macrophages are key players in the pathogenesis of ED and PD.
- Further research into macrophage function can lead to novel therapeutic strategies for ED.
- Understanding macrophage involvement is essential for addressing the complex mechanisms of ED and PD.
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