To investigate the expression of four subtypes of PGE(2) E-prostanoid (EP) receptors (EP1-EP4) and the effects of EP3/EP4 on bladder dysfunction in a new neurogenic bladder model induced by experimental autoimmune encephalomyelitis (EAE), the mouse model of EAE was induced using a previously established method, and bladder function in mice with different defined levels of neurological impairment was then examined, including micturition frequencies and voiding weight. Bladders were then harvested for analysis of EP receptor expression by Western blot. Activities of agonists/antagonists of EP3 and EP4 receptors as well as PGE(2) were also evaluated at different stages of EAE. The results showed that EAE mice developed profound bladder dysfunction characterized by significantly increased micturition and significantly decreased urine output per micturition. EAE-induced upregulation of EP3 and EP4 receptors in the bladder was accompanied by bladder dysfunction. However, EAE had no significant effect on EP1 and EP2 receptors. Moreover, PGE(2) and agonists/antagonists of EP3 and EP4 receptors significantly affected bladder dysfunction in EAE mice. Thus, we believe that EAE mice are useful for investigations of the neurogenic bladder. In addition, EP3 and EP4 receptors play a role in EAE-induced bladder dysfunction, providing us with a new target for the treatment of neurogenic bladders.
基金:
Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [81200536]; First Affiliated Hospital of Zhengzhou University
第一作者单位:[1]Zhengzhou Univ, Affiliated Hosp 1, Dept Urol, Zhengzhou 450002, Peoples R China
通讯作者:
通讯机构:[1]Zhengzhou Univ, Affiliated Hosp 1, Dept Urol, Zhengzhou 450002, Peoples R China[*1]Zhengzhou Univ, Affiliated Hosp 1, Dept Urol, 1 Jian She Dong Ave, Zhengzhou 450002, Peoples R China
推荐引用方式(GB/T 7714):
Xue Rui,Jia Zhankui,Kong Xiaomu,et al.Effects of PGE(2) EP3/EP4 receptors on bladder dysfunction in mice with experimental autoimmune encephalomyelitis[J].AMERICAN JOURNAL of PHYSIOLOGY-RENAL PHYSIOLOGY.2013,305(12):F1656-F1662.doi:10.1152/ajprenal.00271.2013.
APA:
Xue, Rui,Jia, Zhankui,Kong, Xiaomu,Pi, Guofu,Ma, Shengli&Yang, Jinjian.(2013).Effects of PGE(2) EP3/EP4 receptors on bladder dysfunction in mice with experimental autoimmune encephalomyelitis.AMERICAN JOURNAL of PHYSIOLOGY-RENAL PHYSIOLOGY,305,(12)
MLA:
Xue, Rui,et al."Effects of PGE(2) EP3/EP4 receptors on bladder dysfunction in mice with experimental autoimmune encephalomyelitis".AMERICAN JOURNAL of PHYSIOLOGY-RENAL PHYSIOLOGY 305..12(2013):F1656-F1662