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Uemura KI, Hayashi T, Hiroshige T, Ueda K, Ohta K, Kanazawa T, Hirashima S, Nakiri M, Igawa T, Nakamura KI. Ectopic subcutaneous transplantation of fetal rat urogenital sinus and seminal vesicle promotes the organ growth and formation. Acta Histochem 2020; 122:151569. [PMID: 32622420 DOI: 10.1016/j.acthis.2020.151569] [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: 12/24/2019] [Revised: 05/19/2020] [Accepted: 05/20/2020] [Indexed: 11/18/2022]
Abstract
PURPOSE The fate of subcutaneously transplanted urogenital sinus (UGS) and seminal vesicle (SV) was investigated in the present study. MATERIALS AND METHODS Fetal UGS and SV extracted from 20-embryonic-day-old male normal and GFP transgenic rats were subcutaneously transplanted into 7-week-old male immunologically inhibited rats. The transplants were then examined at 2, 4, 8, and 16 weeks after transplantation. We analyzed the survival ratio, weight, and histopathology as well as the immunohistochemical characteristics of the transplanted tissues. For control experiments, 2-, 4-, 8-, and 16-week-old normal male rats were used. RESULTS Almost all of the transplanted tissues survived under the skin, and the tissue weights increased over time after transplantation. The histopathological characteristics and immunohistochemical staining pattern with certain antibodies of the transplanted tissues were similar to those of normal adult rat prostate and seminal vesicle. The transplanted GFP transgenic tissues demonstrated spontaneous growth and organ formation under the skin, showing distribution and movement of transplanted cells and tissues. CONCLUSION Subcutaneously transplanted fetal UGS and SV were able to develop into mature adult organs.
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Affiliation(s)
- Kei-Ichiro Uemura
- Division of Microscopic and Developmental Anatomy, Department of Anatomy, Kurume University School of Medicine, Kurume, Fukuoka, Japan; Department of Urology, Kurume University School of Medicine, Kurume, Fukuoka, Japan.
| | - Tokumasa Hayashi
- Department of Urology, Kurume University School of Medicine, Kurume, Fukuoka, Japan
| | - Tasuku Hiroshige
- Department of Urology, Kurume University School of Medicine, Kurume, Fukuoka, Japan
| | - Kosuke Ueda
- Department of Urology, Kurume University School of Medicine, Kurume, Fukuoka, Japan
| | - Keisuke Ohta
- Division of Microscopic and Developmental Anatomy, Department of Anatomy, Kurume University School of Medicine, Kurume, Fukuoka, Japan
| | - Tomonoshin Kanazawa
- Division of Microscopic and Developmental Anatomy, Department of Anatomy, Kurume University School of Medicine, Kurume, Fukuoka, Japan
| | - Shingo Hirashima
- Division of Microscopic and Developmental Anatomy, Department of Anatomy, Kurume University School of Medicine, Kurume, Fukuoka, Japan
| | - Makoto Nakiri
- Department of Urology, Kurume University School of Medicine, Kurume, Fukuoka, Japan
| | - Tsukasa Igawa
- Department of Urology, Kurume University School of Medicine, Kurume, Fukuoka, Japan
| | - Kei-Ichiro Nakamura
- Division of Microscopic and Developmental Anatomy, Department of Anatomy, Kurume University School of Medicine, Kurume, Fukuoka, Japan
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Investigation of sexual dimorphisms through mouse models and hormone/hormone-disruptor treatments. Differentiation 2016; 91:78-89. [DOI: 10.1016/j.diff.2015.11.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2015] [Accepted: 11/11/2015] [Indexed: 01/23/2023]
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