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Ko IG, Hwang L, Jin JJ, Kim SH, Kim CJ, Choi YH, Kim HY, Yoo JM, Kim SJ. Pirfenidone improves voiding function by suppressing bladder fibrosis in underactive bladder rats. Eur J Pharmacol 2024; 977:176721. [PMID: 38851561 DOI: 10.1016/j.ejphar.2024.176721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 05/12/2024] [Accepted: 06/05/2024] [Indexed: 06/10/2024]
Abstract
Underactive bladder (UAB), characterized by a complex set of symptoms with few treatment options, can significantly reduce the quality of life of affected people. UAB is characterized by hyperplasia and fibrosis of the bladder wall as well as decreased bladder compliance. Pirfenidone is a powerful anti-fibrotic agent that inhibits the progression of fibrosis in people with idiopathic pulmonary fibrosis. In the current study, we evaluated the efficacy of pirfenidone in the treatment of bladder fibrosis in a UAB rat model. UAB was induced by crushing damage to nerve bundles in the major pelvic ganglion. Forty-two days after surgery, 1 mL distilled water containing pirfenidone (100, 300, or 500 mg/kg) was orally administered once every 2 days for a total of 10 times for 20 days to the rats in the pirfenidone-treated groups. Crushing damage to the nerve bundles caused voiding dysfunction, resulting in increased bladder weight and the level of fibrous related factors in the bladder, leading to UAB symptoms. Pirfenidone treatment improved urinary function, increased bladder weight and suppressed the expression of fibrosis factors. The results of this experiment suggest that pirfenidone can be used to ameliorate difficult-to-treat urological conditions such as bladder fibrosis. Therefore, pirfenidone treatment can be considered an option to improve voiding function in patient with incurable UAB.
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Affiliation(s)
- Il-Gyu Ko
- Research Support Center, School of Medicine, Keimyung University, Deagu, 42601, South Korea
| | - Lakkyong Hwang
- Team of Efficacy Evaluation, Orient Genia Inc, Seongnam-si, 13201, South Korea; Department of Physiology, College of Medicine, Kyung Hee University, Seoul, 02447, South Korea
| | - Jun-Jang Jin
- Team of Efficacy Evaluation, Orient Genia Inc, Seongnam-si, 13201, South Korea; Department of Physiology, College of Medicine, Kyung Hee University, Seoul, 02447, South Korea
| | - Sang-Hoon Kim
- Department of Neurosurgery, Robert Wood Johnson Medical School Rutgers, The Stat University of New Jersey, Piscataway, NJ, USA
| | - Chang-Ju Kim
- Department of Physiology, College of Medicine, Kyung Hee University, Seoul, 02447, South Korea
| | - Young Hyo Choi
- Department of Urology, College of Medicine, St. Vincent's Hospital, The Catholic University of Korea, Suwon-si, South Korea
| | - Hee Youn Kim
- Department of Urology, College of Medicine, St. Vincent's Hospital, The Catholic University of Korea, Suwon-si, South Korea
| | - Je Mo Yoo
- Department of Urology, College of Medicine, St. Vincent's Hospital, The Catholic University of Korea, Suwon-si, South Korea
| | - Su Jin Kim
- Department of Urology, College of Medicine, St. Vincent's Hospital, The Catholic University of Korea, Suwon-si, South Korea.
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Wang HHS, Thaker H, Bigger-Allen A, Nagy JA, Rutkove SB. Novel phenotype characterization utilizing electrical impedance myography signatures in murine spinal cord injury neurogenic bladder models. Sci Rep 2023; 13:19520. [PMID: 37945675 PMCID: PMC10636012 DOI: 10.1038/s41598-023-46740-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 11/04/2023] [Indexed: 11/12/2023] Open
Abstract
Neurogenic bladder (NB) affects people of all ages. Electric impedance myography (EIM) assesses localized muscle abnormalities. Here, we sought to investigate whether unique detrusor EIM signatures are present in NB due to spinal cord injury (SCI). Twenty-eight, 8-10 weeks old, C57BL/6J female mice were studied. Twenty underwent spinal cord transection; 8 served as controls. Cohorts were euthanized at 4 and 6 weeks after spinal cord transection. Each bladder was measured in-situ with EIM with applied frequencies of 1 kHz to 10 MHz, and then processed for molecular and histologic study. SCI mice had greater bladder-to-body weight ratio (p < 0.0001), greater collagen deposition (p = 0.009), and greater smooth-muscle-myosin-heavy-chain isoform A/B ratio (p < 0.0001). Compared with the control group, the SCI group was associated with lower phase, reactance, and resistance values (p < 0.01). Significant correlations (p < 0.001) between bladder-to-body weight ratios and EIM measurements were observed across the entire frequency spectrum. A severely hypertrophied phenotype was characterized by even greater bladder-to-body weight ratios and more depressed EIM values. Our study demonstrated distinct EIM alterations in the detrusor muscle of mice with NB due to SCI. With further refinement, EIM may offer a potential point-of-care tool for the assessment of NB and its response to treatment.
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Affiliation(s)
- Hsin-Hsiao Scott Wang
- Department of Urology, Boston Children's Hospital, 300 Longwood Ave, HU390, Boston, MA, USA.
- Harvard Medical School, Boston, MA, 02215, USA.
| | - Hatim Thaker
- Department of Urology, Boston Children's Hospital, 300 Longwood Ave, HU390, Boston, MA, USA
- Harvard Medical School, Boston, MA, 02215, USA
| | - Alex Bigger-Allen
- Department of Urology, Boston Children's Hospital, 300 Longwood Ave, HU390, Boston, MA, USA
| | - Janice A Nagy
- Harvard Medical School, Boston, MA, 02215, USA
- Department of Neurology, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Seward B Rutkove
- Harvard Medical School, Boston, MA, 02215, USA
- Department of Neurology, Beth Israel Deaconess Medical Center, Boston, MA, USA
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Li K, Lai C, Hei S, Liu C, Li Z, Kewei X. Single-cell transcriptome reveals cellular heterogeneity and lineage-specific regulatory changes of fibroblasts in post-traumatic urethral stricture. Biochem Biophys Rep 2023; 33:101431. [PMID: 36748064 PMCID: PMC9898624 DOI: 10.1016/j.bbrep.2023.101431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 01/12/2023] [Accepted: 01/16/2023] [Indexed: 01/24/2023] Open
Abstract
Fibroblast is the critical repair cell for urethral wound healing. The dysfunction of fibroblasts can lead to excessive fibrosis and hypertrophic scar, which eventually leads to post-traumatic urethral stricture. However, the fibroblast subpopulation and intercellular communication in urethral stricture remains poorly understood. Therefore, a comprehensive single-cell resolution transcript landscape of human PTUS needs to be reported. We performed single-cell RNA-sequencing of 13,411 cells from post-urethral stricture tissue and adjacent normal tissue. Unsupervised clustering, function enrichment analysis, cell trajectory construction and intercellular communication analysis were applied to explore the cellular microenvironment and intercellular communication at single-cell level. We found that there is highly cell heterogeneity in urethral stricture tissue, which includes 11 cell lineages based on the cell markers. We identified the molecular typing of fibroblasts and indicated the key fibroblast subpopulations in the process of fibrogenesis during urethral stricture. The intercellular communication between fibroblasts and vascular endothelial cells was identified. As an important bridge in the communication, integrins may be a potential therapeutic target for post-traumatic urethral stricture. In conclusion, this study reveals the cellular heterogeneity and lineage-specific regulatory changes of fibroblasts in post-traumatic urethral stricture, thereby providing new insights and potential genes for post-traumatic urethral stricture treatment.
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Affiliation(s)
- Kuiqing Li
- Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Cong Lai
- Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Shangyan Hei
- Traditional Chinese Medicine Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Cheng Liu
- Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Zhuohang Li
- Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Xu Kewei
- Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China,Corresponding author. No. 107 Yan Jiang West Road, Guangzhou, China.510120
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Antao AM, Ramakrishna S, Kim KS. The Role of Nkx3.1 in Cancers and Stemness. Int J Stem Cells 2021; 14:168-179. [PMID: 33632988 PMCID: PMC8138659 DOI: 10.15283/ijsc20121] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 11/17/2020] [Accepted: 12/14/2020] [Indexed: 12/23/2022] Open
Abstract
The well-known androgen-regulated homeobox gene, NKX3.1, is located on the short arm of chromosome 8. It is the first known prostate epithelium-specific marker, and is a transcription factor involved in development of the testes and prostate. In addition to specifying the prostate epithelium and maintaining normal prostate secretory function, Nkx3.1 is an established marker for prostate cancer. Over the years, however, this gene has been implicated in various other cancers, and technological advances have allowed determination of its role in other cellular functions. Nkx3.1 has also been recently identified as a factor capable of replacing Oct4 in cellular reprogramming. This review highlights the role of this tumor suppressor and briefly describes its functions, ranging from prostate development to maintenance of stemness and cellular reprogramming.
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Affiliation(s)
- Ainsley Mike Antao
- Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul, Korea
| | - Suresh Ramakrishna
- Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul, Korea.,College of Medicine, Hanyang University, Seoul, Korea
| | - Kye-Seong Kim
- Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul, Korea.,College of Medicine, Hanyang University, Seoul, Korea
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