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We evaluated the hypothesis that MIF has similar actions in the bladder by studying detrusor responses to pBOO or sham surgery in anesthetized female mice rendered null for the mif gene (MIF KO) and in wild-type (WT) controls, all killed 3 wk after surgery. WT mice revealed intense MIF immunoreactivity in urothelial cells which decreased, without change in overall mif mRNA levels. Stereologically sound quantitative morphometric measurements were performed in the middetrusor region of each bladder. MIF KO bladders were normal in appearance, yet were 30\u201340% heavier, with increased middetrusor collagen and muscle, compared with WT controls. In WT mice, pBOO increased the collagen-to-muscle ratio 1.9-fold and middetrusor collagen 1.8-fold, while nucleated muscle counts were 22% lower. In MIF KO mice, by contrast, pBOO had no significant effect on any of these parameters. In primary bladder muscle cultures, treatment with rMIF protein increased TUNEL staining, raising the proportion of early and late apoptotic cells on flow cytometry. Our studies implicate MIF in the sequence of events leading to detrusor muscle loss and fibrosis in obstruction. They raise the possibility that strategies designed to antagonize MIF synthesis, release, or biological activity could prevent or delay DU and urinary retention.<\/jats:p>","DOI":"10.1152\/ajprenal.00144.2006","type":"journal-article","created":{"date-parts":[[2006,7,12]],"date-time":"2006-07-12T03:43:57Z","timestamp":1152675837000},"page":"F1343-F1353","source":"Crossref","is-referenced-by-count":30,"title":["Null mutation in macrophage migration inhibitory factor prevents muscle cell loss and fibrosis in partial bladder outlet obstruction"],"prefix":"10.1152","volume":"291","author":[{"given":"John A.","family":"Taylor","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Qing","family":"Zhu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Brian","family":"Irwin","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yazeed","family":"Maghaydah","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"John","family":"Tsimikas","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Carol","family":"Pilbeam","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lin","family":"Leng","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Richard","family":"Bucala","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"George A.","family":"Kuchel","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"24","reference":[{"key":"R1","doi-asserted-by":"publisher","DOI":"10.1016\/S0090-4295(02)02243-4"},{"key":"R2","doi-asserted-by":"publisher","DOI":"10.1016\/S0022-5347(01)69138-9"},{"key":"R3","doi-asserted-by":"publisher","DOI":"10.1172\/JCI16288"},{"key":"R4","doi-asserted-by":"publisher","DOI":"10.1097\/01.ju.0000138045.61378.96"},{"key":"R5","doi-asserted-by":"publisher","DOI":"10.1038\/sj.gene.6363867"},{"key":"R6","doi-asserted-by":"publisher","DOI":"10.1096\/fj.03-0110com"},{"key":"R7","doi-asserted-by":"publisher","DOI":"10.1172\/JCI9900"},{"key":"R8","doi-asserted-by":"publisher","DOI":"10.1021\/bi00251a025"},{"key":"R9","doi-asserted-by":"publisher","DOI":"10.1152\/ajprenal.00378.2002"},{"key":"R10","doi-asserted-by":"publisher","DOI":"10.1038\/nn902"},{"key":"R11","doi-asserted-by":"publisher","DOI":"10.1084\/jem.189.2.341"},{"key":"R12","doi-asserted-by":"publisher","DOI":"10.1097\/01.ju.0000055781.07630.aa"},{"key":"R13","doi-asserted-by":"publisher","DOI":"10.1046\/j.1464-410X.2003.04092.x"},{"key":"R14","doi-asserted-by":"publisher","DOI":"10.1016\/j.atherosclerosis.2005.03.028"},{"key":"R15","unstructured":"Burkitt HG, Young B, and Heath JW.Wheater\u2019s Functional Histology. 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