Evaluation of pharmaceutical HO-1 induction and mesenchymal stem cell combination therapy in meconium peritonitis mouse model
Project/Area Number |
18K15710
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Research Category |
Grant-in-Aid for Early-Career Scientists
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Allocation Type | Multi-year Fund |
Review Section |
Basic Section 52050:Embryonic medicine and pediatrics-related
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Research Institution | Kobe University |
Principal Investigator |
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Project Period (FY) |
2018-04-01 – 2020-03-31
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Project Status |
Completed (Fiscal Year 2019)
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Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2019: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2018: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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Keywords | 胎便性腹膜炎 / 炎症性疾患 / ヒト胎便 / 早産児マウス敗血症モデル / モデルマウス / 糞便懸濁液 / HO-1 / 間葉系幹細胞 / 胎便 / 胎便懸濁液 / 新生仔マウス / 新生児 / 炎症 / 細菌感染 / 動物モデル / 消化酵素 / 胎便性腹膜炎モデル / ヘムオキシゲナーゼ-1 |
Outline of Final Research Achievements |
Background: Meconium peritonitis is caused by leakage of meconium into the fetal peritoneal cavity due to intestinal perforation. Objective: To generate a neonatal mouse model of meconium peritonitis via IP administration of human meconium suspension or “slurry” (MS) by applying the CS methodology. Methods: Fresh meconium was suspended in PBS to 500 mg/mL. 200 μL of MS (meconium) or PBS (control) was administered IP to 4d-old wild-type FVB mice pups. Body weight and survivals was monitored. Results: Administration of MS resulted in significant decreases in weight gain and survival (0.8±7.5% (n=26), and 58.8% (n=34), respectively) compared with PBS controls (18.6±4.8% (n=10) and 100% (n=10), respectively). Conclusions: IP administration of MS resulted in significant mortality and weight loss to 4d-old newborn pups, and affects blood gasses and electrolytes. Therefore, we conclude that this MS model can be used to study the pathophysiology and treatment of meconium peritonitis.
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Academic Significance and Societal Importance of the Research Achievements |
胎便性腹膜炎は、周産期の難治性疾患であり、胎生期の腸管穿孔により無菌性の胎便が腹腔内に漏出して生じる化学性腹膜炎と定義される。一方、その病態を反映する動物モデルが無く、有効な治療法もない。 本研究では、「胎便性腹膜炎の病態解明のための疾患モデル動物は確立できるか?」という学術的問いに解答するために、申請者の新生児モデルマウス作成技術を駆使し、胎便性腹膜炎モデルマウスを作製・解析し、新規治療法開発のための基盤を確立した。本モデルマウスの確立により、今後、薬物的ヘムオキシゲナーゼ-1誘導、間葉系幹細胞投与などの新規治療法の有効性の検討が可能となり、本研究成果の学術的意義は大きいと考えている。
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Report
(3 results)
Research Products
(41 results)
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[Journal Article] A genome-wide association study identifies only two ancestry specific variants associated with spontaneous preterm birth.2018
Author(s)
Rappoport N, Toung J, Hadley D, Wong RJ, Fujioka K, Jelliffe-Pawlowski LL, Gould JB, Darmstadt GL, Wang X, Bustamante CD, Snyder MP, Ziv E, Patsopoulos NA, Muglia LJ, Burchard E, Shaw GM, O'Brodovich HM, Stevenson DK, Butte AJ, Sirota M, et al.
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Journal Title
Sci Rep.
Volume: 8(1)
Issue: 1
Pages: 226-226
DOI
NAID
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Presentation] ヒト胎便懸濁液の腹腔内投与による胎便性腹膜炎モデルマウスと早産児マウス敗血症モデルの比較2019
Author(s)
芦名 満理子, 藤岡 一路, 仲宗根 瑠花, 永井 貞之, 菅 秀太郎, 阿部 真也, 福嶋 祥代, 大山 正平, 生田 寿彦, 西田 浩輔, 飯島 一誠
Organizer
日本新生児成育医学会
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[Presentation] Insulin Therapy for Stress-Induced Hyperglycemia in Neonatal Sepsis Using A Preterm Mouse Model2018
Author(s)
Kazumichi Fujioka, Saki Okubo, Kosuke Nishida, Mariko Ashina, Toshihiko Ikuta, Sachiyo Fukushima, Shohei Ohyama, Keiji Yamana, Ronald J. Wong, Kazumoto Iijima, Ichiro Morioka
Organizer
Pediatric Academic Society Annual Meeting
Related Report
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[Presentation] The Effect of Recombinant Human Thrombomodulin (rh-TM) in Neonatal Sepsis Using a Preterm Mouse Model2018
Author(s)
Kazumichi Fujioka, Kosuke Nishida, Saki Okubo, Mariko Ashina, Toshihiko Ikuta, Sachiyo Fukushima, Shohei Ohyama, Keiji Yamana, Ronald J. Wong, Kazumoto Iijima, Ichiro Morioka
Organizer
Pediatric Academic Society Annual Meeting
Related Report
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